EP0407657A1 - Compression device for compressing the ends of elongated workpieces such as pieces of wire and application of such a device in a wire-working machine for manufacturing pins - Google Patents

Compression device for compressing the ends of elongated workpieces such as pieces of wire and application of such a device in a wire-working machine for manufacturing pins Download PDF

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Publication number
EP0407657A1
EP0407657A1 EP89121114A EP89121114A EP0407657A1 EP 0407657 A1 EP0407657 A1 EP 0407657A1 EP 89121114 A EP89121114 A EP 89121114A EP 89121114 A EP89121114 A EP 89121114A EP 0407657 A1 EP0407657 A1 EP 0407657A1
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EP
European Patent Office
Prior art keywords
upsetting
tool
slide
wire
positioning
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP89121114A
Other languages
German (de)
French (fr)
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EP0407657B1 (en
Inventor
Gerhard Dipl.-Ing. Lange (Fh)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Wafios Maschinenfabrik Wagner Ficker and Schmid
Wafios Maschinenfabrik GmbH and Co KG
Original Assignee
Wafios Maschinenfabrik Wagner Ficker and Schmid
Wafios Maschinenfabrik GmbH and Co KG
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Publication date
Application filed by Wafios Maschinenfabrik Wagner Ficker and Schmid, Wafios Maschinenfabrik GmbH and Co KG filed Critical Wafios Maschinenfabrik Wagner Ficker and Schmid
Publication of EP0407657A1 publication Critical patent/EP0407657A1/en
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Publication of EP0407657B1 publication Critical patent/EP0407657B1/en
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21G—MAKING NEEDLES, PINS OR NAILS OF METAL
    • B21G3/00—Making pins, nails, or the like
    • B21G3/12—Upsetting; Forming heads
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21F—WORKING OR PROCESSING OF METAL WIRE
    • B21F5/00—Upsetting wire or pressing operations affecting the wire cross-section
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21G—MAKING NEEDLES, PINS OR NAILS OF METAL
    • B21G3/00—Making pins, nails, or the like
    • B21G3/32—Feeding material to be worked to nail or pin making machines
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
    • B21J9/00—Forging presses
    • B21J9/02—Special design or construction
    • B21J9/06—Swaging presses; Upsetting presses
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S470/00—Threaded, headed fastener, or washer making: process and apparatus
    • Y10S470/906—Nylon plug lock

Definitions

  • the invention relates to an upsetting device according to the preamble of claim 1.
  • a disadvantage of the short stroke version is that because of the short upsetting tool path, the distance between the wire holding the jaws during the head upsetting and serving as an anvil and the upsetting tool when the upsetting carriage is in the retracted position is very small. Now the upsetting tool and especially the clamping tools have to be replaced in case of tool wear or when changing the wire diameter to be processed up to now it has been necessary to remove the heavy jaw box in which the jaws are seated as a whole in order to be able to change the tools.
  • the invention is therefore based on the object to create the upsetting device in Short Stroke, due to a change of the processed wire diameter or tool wear only a few light pieces of equipment must be removed when possible, be able to replace the tools. Furthermore, the facility should be able to work more precisely, require less maintenance and be quieter.
  • the invention also relates to the use of the upsetting device according to the invention in a wire-processing machine, in particular a pin press, as a device for producing wire pins, in particular head nails.
  • Fig. 2 is a carriage (12) of the upsetting device (14), which is part of a device for producing wire pins, via a bolt (16) seated in the forked end of the carriage (12) with the connecting rod (18) of a connecting rod (20) connected.
  • the connecting rod (18) is held on the short-stroke crank pin (24) of the drive shaft (28) of the device by means of a connecting rod cover (22).
  • the carriage (12) shown in its front working position in FIG. 2, has a dovetail guide over its entire length and is slidably mounted between two guide strips (32) on a base plate (34) in the machine frame (36).
  • a threaded flange (40) with an internal thread is fastened to the slide (12), in which a set screw (42) is screwed, which is countered by means of a ring nut (44).
  • a swaging tool (54) of the swaging device (14) is arranged in a separate guide (48) in bearing bushes (50 and 52) and can be moved longitudinally, with sliding bearings.
  • the bearing bush (50) is pressed into a cover (58) which is screwed onto the guide (48), while the bush (52) sits directly in the guide (48).
  • a shoulder is screwed against which one end of a compression spring (60) rests, the other end of which rests on a thrust ring (62) which is supported by a collar ( 56) of the upsetting tool (54) is held.
  • the guide (48) with the floating upset tool (54) can be easily removed or replaced by means of two stud bolts (66) on a bearing block (68) attached to the machine frame (36), adjusted by means of a key (70) increases. Thanks to the return spring (60), the compression tool (54) is permanently non-positively on the hexagon head of the adjusting screw (42).
  • two opposing clamping tools (76) of a clamping device (78) of the device for producing wire pins are arranged in the immediate vicinity of this and symmetrically to this axis.
  • a wire pin (82) with an upset head (84) is firmly clamped between the clamping tools (76), made from a pin blank (86).
  • toothed belts (92 and 94) lie, firmly clamped, in the tooth gaps of two toothed belts (92 and 94) of a transport device (96) of the device for producing wire pins, with which the pin blanks (86) without head (84) intermittently, in the horizontal and vertical plane exactly in front of the upsetting tool (54) of the upsetting device (14) and guided away from it.
  • the toothed belts (92 and 94) move gradually across the compression and clamping direction of the compression and clamping device (14,78).
  • the distance between the toothed belts (92 and 94) from one another, and thus the tension with which the pin blanks (86) are held in the tooth gaps, can be set by means of a height-adjustable guide rail (98 or 100).
  • a bearing (102) is attached to the front part of the guide of the carriage (12), in which a rocker arm (106) is mounted on a bolt (104).
  • a connecting rod (110) engages a bolt (108), which connects the rocker arm (106) on the one hand to the slide (12) of the upsetting device (14) via a bolt (112) and on the other hand couples a tool holder (114) to a positioning device (116) for the pin blanks (86) via a bolt (118).
  • the connecting rods (110) consist of rod ends (120 and 122) which are connected to each other by a turnbuckle (124).
  • the tool holder (114) is by means of two rods (126) lying one below the other guided longitudinally in the machine frame (36).
  • On the holder (114) is a positioning tool (132) with four working surfaces (134 to 140) for a 4-stage positioning process, during which the longitudinal position of the pin blanks (86) can be changed.
  • An additional positioning tool (146) is clamped to the slide (12), adjustable in length in a slot, by means of the bolt (112) through which the joint head (122) is fastened.
  • This positioning tool (146) is provided with only two working surfaces (148, 150) for axially displacing the pin blanks (86) against the direction of displacement of the first positioning tool (132).
  • the lower two counter-cutting tools (152) of the cutting device of the device for producing wire pins for cutting to length from the wire (154) and pyramid-shaped sharpening of the wire pin blanks (86) are indicated.
  • a feed not shown but known, pulls the wire (154) from the wire supply through a straightening device and pushes it, as shown in FIG. 1 , as much wire through the opened cutting tools (152) and into the tooth gaps of the two toothed belts (92 and 94)), only the lower toothed belt (92) being drawn in in FIG. 1, as for the desired wire pin length and for shaping the Wire pin head (84) is required.
  • the counter-cutting tools (152) each of which can be seated in a lever or in a carriage, cut off the wire (154), forming a pyramid-shaped wire pin tip (88).
  • the intermittent drive of the toothed belt pair (92 and 94) stops briefly.
  • the drive is then switched on again for a short time, thereby moving the pair of toothed belts one step further and stopping again before a new wire feed (this could also be done by a stepping gear).
  • the compensation is that the cutting tools (152) of the cutting device and the clamping and upsetting device (78, 14) of the device for producing wire pins (82) are arranged stationary, the different distance from the wire pin tip (88) to the upsetting tool (54) in the manufacture of a different pin length is compensated for by shifting the pin blanks (86) in their longitudinal direction within the transport path between the cutting station and the head upsetting station, as follows:
  • the positioning of the pin blanks (86) is carried out by the two positioning tools (132 and 146) of the positioning device (116), the first tool (132) having its four working surfaces (134 to 140) for a gradual feed.
  • the step-by-step positioning takes place with each advance stroke of the slide (12).
  • the carriage (12) moves forward i.e. when each wire pin head (84) is produced
  • the positioning tool (132) guided in the machine frame (36) is transferred to the transport device (96) via the connecting rod (110) and the rocker arm (106). Moved so that the pin blank (86) located at the time in front of the first working surface (134) of the positioning tool (132) is advanced by a certain amount.
  • the transport device (96) stands still during this process.
  • the pin blank (86) is possibly moved back a short distance from the work surface (150), as a result of which the length tolerances of the pin blanks are compensated for so that it has reached its final position, and he
  • the second positioning tool (146) moves them back in two steps, in such a way that the pin blanks are first moved back from the work surface (148) and then from the work surface (150) to the final position.
  • the positioning device (116) can be dispensed with entirely if only pins of a length order are to be produced, or if the pin quality is not so high.
  • the cutting device is then arranged so that the pin blanks (86) come to rest in the transport device (96) in such a way that just such a wire end comes out of the Clamping tools (76) protrude as is required for the head production during the upsetting process.
  • the clamping jaws (76) close, they hold the pin blank (86) for the following upsetting process to produce the pin head (84).
  • the connecting rod (18) is set in motion by the (short-stroke) crank pin (24) of the drive shaft (28), which gives the carriage (12) a reciprocating movement.
  • a finished wire pin (82) is moved further out of the tool area, while a new pin blank (86) gets between the tools (54 and 76), whereupon the process begins again.
  • the finished pins (82) fall out safely via a slide at the end of the transport route without an additional ejector, or the ordered, arriving finished pins can also be automatically removed and removed for magazine or other processing.
  • the upsetting tool (54) is arranged in a separate guide (48) and is not positively connected to the slide (12), the upsetting tool (54) together with the guide (48) can be removed as a unit by simply loosening the nuts of the stud bolts ( 66) can be easily removed and replaced if necessary. Furthermore, the clamping tools (76) can be replaced easily accessible after removing this unit. Another advantage of this, book-led outside of the carriage (12) Upsetting tool arrangement is its long round guide, which extends over a relatively large part of the tool length on both sides, which ensures that the tool is supported without play and tilting.
  • the upsetting pressure does not have to be absorbed by the slide (12) and its guide strips (32, 34), which would have to be replaced as a whole in the event of excessive wear.
  • the inaccuracy was transferred to the manufactured product with increasing wear of the slide and the guide parts, ie with increasing guide play, so that the machine had to be continuously monitored in order not to produce any rejects. The machine became louder and louder as the leadership game increased.

Abstract

The invention relates to an upsetting device for upsetting the ends of elongated workpieces such as pieces of wire and the application of such a device in a wire-working machine for manufacturing pins. <??>The prior art comprises upsetting devices with an upsetting tool which can be moved backwards and forwards by means of a slide, to which it is connected for an at all times joint movement. <??>The disadvantage of this connection in short-stroke designs of the slide is that, even with the upsetting tool drawn back, there is too little space for a tool change between the slide and the workpiece to be upset, making it necessary to remove beforehand the clamping tools for holding the workpiece and then reinstall them. <??>It is the object of the invention to avoid this removal and installation and to make the upsetting device operate as precisely and quietly as possible and with as little maintenance as possible. <??>The solution to this object is that the upsetting tool (54) is mounted apart from the upsetting slide (12), with the ability for displacement in its direction of movement, in its own longitudinal guide (48/52, 58/50) separate from the guide (34) of the slide and that the upsetting tool (54) rests with non-positive engagement against that part (42) of the upsetting slide (12) which acts on it. <??>The advantage of this solution to the object is the possibility of removing the upsetting tool as a unit together with the guide without having to remove the clamping tools in order to gain access to it. <IMAGE>

Description

Die Erfindung betrifft eine Staucheinrichtung gemäß Oberbegriff des Anspruchs 1.The invention relates to an upsetting device according to the preamble of claim 1.

Es ist bereits bekannt, die Staucheinrichtung einer Vorrichtung zur Herstellung von Drahtstiften mit Kurzhub des Stauchwerkzeugs auszuführen, wobei das Anstau­chen des Drahtstiftkopfes entweder von einer Kurzhub-Kurbelwelle oder von einer Kurzhub-Kurvenscheibe aus über einen Stauchschlitten erfolgen kann. Vorteilhaft hierbei ist, daß für die Verformung eine längere Zeit als bei Langhub-Ausführun­gen zur Verfügung steht, was eine kleinere Verformungsgeschwindigkeit und einen kleineren Formänderungswiderstand bedeutet. Es entsteht ein weicherer Übergang beim Stauchvorgang ohne Wechsel des Betriebsspiels in den Koppelgliedern und so­mit eine geräuscharme Maschine.It is already known to design the upsetting device of a device for producing wire pins with a short stroke of the upsetting tool, wherein the upsetting of the wire pin head can take place either from a short-stroke crankshaft or from a short-stroke cam disk via a compression sledge. The advantage here is that a longer time is available for the deformation than with long-stroke designs, which means a lower deformation speed and a smaller resistance to deformation. The result is a smoother transition during the upsetting process without changing the operating play in the coupling links and thus a low-noise machine.

Nachteilig bei der Kurzhubausführung ist jedoch, daß wegen des kurzen Stauch­werkzeugweges der Abstand zwischen den Draht während des Kopf -Anstauchens fest­haltenden und als Amboß dienenden Klemmbacken und dem Stauchwerkzeug, wenn sich der Stauchschlitten in zurückgezogener Stellung befindet, sehr gering ist. Müs­sen nun das Stauchwerkzeug und vor allem die Klemmwerkzeuge bei Werkzeugver­schleiß oder bei Änderung des zu verarbeitenden Drahtdurchmessers ausgewechselt werden, ist es bis jetzt erforderlich, den schweren Backenkasten, in dem die Klemmbacken sitzen, als Ganzes auszubauen, um die Werkzeuge wechseln zu können.A disadvantage of the short stroke version, however, is that because of the short upsetting tool path, the distance between the wire holding the jaws during the head upsetting and serving as an anvil and the upsetting tool when the upsetting carriage is in the retracted position is very small. Now the upsetting tool and especially the clamping tools have to be replaced in case of tool wear or when changing the wire diameter to be processed up to now it has been necessary to remove the heavy jaw box in which the jaws are seated as a whole in order to be able to change the tools.

Der Erfindung liegt daher die Aufgabe zugrunde, die Staucheinrichtung in Kurz­hubausführung zu schaffen, bei der infolge einer Änderung des zu verarbeitenden Drahtdurchmessers oder bei Werkzeugverschleiß möglichst nur wenige leichte Ein­richtungsteile entfernt werden müssen, um die Werkzeuge auswechseln zu können. Ferner soll die Einrichtung präziser, wartungsärmer und noch leiser arbeiten können.The invention is therefore based on the object to create the upsetting device in Short Stroke, due to a change of the processed wire diameter or tool wear only a few light pieces of equipment must be removed when possible, be able to replace the tools. Furthermore, the facility should be able to work more precisely, require less maintenance and be quieter.

Diese Aufgabe wird ausgehend von einer Einrichtung der eingangs genannten Art erfindungsgemäß durch die kennzeichnenden Merkmale des Anspruchs 1 gelöst. Da­durch kann das Stauchwerkzeug samt Führung zum Durchführen der Umstellarbeiten als Einheit einfach entfernt werden. Durch die getrennte Anordnung von Stauch­werkzeug und Antriebsschlitten ist ferner ein eventuell erforderliches Nachar­beiten der Schlittenführungsteile ohne nachteiligen Einfluß auf den Stauchvor­gang, d. h. auf die Produktqualität möglich. Weitere Vorteile sind am Beschrei­bungsende genannt.This object is achieved on the basis of a device of the type mentioned at the outset by the characterizing features of claim 1. As a result, the upsetting tool and guide can be easily removed as a unit for carrying out the conversion work. Due to the separate arrangement of upsetting tool and drive slide, any reworking of the slide guide parts that may be necessary is possible without an adverse influence on the upsetting process, ie. H. possible on the product quality. Further advantages are mentioned at the end of the description.

Gegenstand der Erfindung ist auch die Verwendung der erfindungsgemäßen Stauch­einrichtung in einer drahtverarbeitenden Maschine, insbesondere einer Stiftpres­se als Vorrichtung zur Herstellung von Drahtstiften, insbesondere Kopfnägeln.The invention also relates to the use of the upsetting device according to the invention in a wire-processing machine, in particular a pin press, as a device for producing wire pins, in particular head nails.

Im folgenden ist die Erfindung anhand der durch die Zeichnung beispielhaft dar­gestellten bevorzugten Ausführungsform der erfindungsgemäßen Einrichtung im ein­zelnen erläutert. Es zeigen:

  • Fig. 1 die Ausführungsform in Draufsicht, in abgebrochener Darstellung
  • Fig. 2 die Ausführungsform in Seitenansicht, geschnitten dargestellt
The invention is explained in detail below with reference to the preferred embodiment of the device according to the invention, which is shown by way of example in the drawing. Show it:
  • Fig. 1 shows the embodiment in plan view, in a broken view
  • Fig. 2 shows the embodiment in side view, cut

In Fig. 2 ist ein Schlitten (12) der Staucheinrichtung (14), die Teil einer Vor­richtung zur Herstellung von Drahtstiften ist, über einen, im gegabelten Ende des Schlittens (12) sitzenden Bolzen (16) mit der Pleuelstange (18) eines Pleu­els (20) verbunden. Die Pleuelstange (18) ist mittels eines Pleueldeckels (22) auf dem Kurzhub-Kurbelzapfen (24) der Antriebswelle (28) der Vorrichtung gehal­ten. Der Schlitten (12), in Fig. 2 in seiner vorderen Arbeitsstellung gezeigt, hat über seine gesamte Länge eine Schwalbenschwanzführung und ist zwischen zwei Führungsleisten (32) auf einer Grundplatte (34) im Maschinengestell (36), glei­tend geführt, gelagert. An seinem, der Pleuelstange (18) abgekehrten Ende ist am Schlitten (12) ein Gewindeflansch (40) mit Innengewinde befestigt, in dem eine Stellschraube (42) eingeschraubt ist, die mittels einer Ringmutter (44) gekon­tert ist.
In axialer Verlängerung der Stellschraube (42) ist in einer separaten Führung (48) in Lagerbuchsen (50 und 52) ein Stauchwerkzeug (54) der Staucheinrichtung (14) längsbeweglich, gleitgelagert geführt, angeordnet. Die Lagerbuchse (50) ist in einen Deckel (58) eingepreßt, der an die Führung (48) angeschraubt ist, wäh­rend die Buchse (52) direkt in der Führung (48) sitzt. An der Buchse (52) ist an ihrem, in die Führung (48) reichenden Ende ein Absatz angedreht, an dem das eine Ende einer Druckfeder (60) anliegt, deren anderes Ende an einem Anlaufring (62) anliegt, der von einem Bund (56) des Stauchwerkzeugs (54) gehalten wird. Die Führung (48) mit dem schwimmend gelagerten Stauchwerkzeug (54) ist mittels zweier Stehbolzen (66) leicht abnehm- bzw. austauschbar auf einem, am Maschinen­gestell (36) befestigten Lagerbock (68), mittels Paßfeder (70) justiert, befe­ stigt. Dank der Rückholfeder (60) liegt das Stauchwerkzeug (54) dauernd kraft­schlüssig am Sechskant-Kopf der Stellschraube (42) an.
In Verlängerung der Achse des Stauchwerkzeugs (54) sind in unmittelbarer Nähe vor diesem und symmetrisch zu dieser Achse zwei, in je einem Hebel oder Schlit­ten sitzende gegeneinanderwirkende Klemmwerkzeuge (76) einer Klemmeinrichtung (78) der Vorrichtung zur Herstellung von Drahtstiften angeordnet. Zwischen den Klemmwerkzeugen (76) befindet sich in Fig. 1 ein Drahtstift (82) mit angestauch­tem Kopf (84) fest eingeklemmt, hergestellt aus einem Stiftrohling (86). Der in Fig. 2 aus den Klemmwerkzeugen (76) herausragende Schaft des Drahtstif ts (82) liegt, fest eingeklemmt, in den Zahnlücken zweier Zahnriemen (92 und 94) einer Transporteinrichtung (96) der Vorrichtung zur Herstellung von Drahtstif­ten, mit der die noch keinen Kopf (84) aufweisenden Stiftrohlinge (86) intermit­tierend, in horizontaler und vertikaler Ebene exakt mittig vor das Stauchwerk­zeug (54) der Staucheinrichtung (14) heran- und von diesem weggeführt werden. Die Zahnriemen (92 und 94) bewegen sich dabei schrittweise quer zur Stauch- und Klemmrichtung der Stauch- und Klemmeinrichtung (14,78). Mittels je einer höhen­verstellbaren Führungsschiene (98 bzw. 100) kann der Abstand der Zahnriemen (92 und 94) voneinander, und damit die Spannung, mit der die Stiftrohlinge (86) in den Zahnlücken gehalten werden, eingestellt werden. Durch seitliche Führungsflä­chen der Führungsschienen (98 und 100) werden die Zahnriemen (92 und 94) ferner, seitlich unverrückbar, über die Transportstrecke geführt, die sich von einer Drahtschneideinrichtung zur Stauch- und Klemmeinrichtung erstreckt.
In Fig. 1 ist am vorderen Teil der Führung des Schlittens (12) ein Lager (102) befestigt, in dem auf einem Bolzen (104) ein Wipp-Hebel (106) gelagert ist. An jedem Arm dieses Hebels (106) greift an einem Bolzen (108) eine Verbindungsstan­ge (110) an, die den Wipphebel (106) einerseits mit dem Schlitten (12) der Staucheinrichtung (14) über einen Bolzen (112) bzw. andererseits mit einem Werk­zeug-Halter (114) einer Positioniereinrichtung (116) für die Stiftrohlinge (86) über einen Bolzen (118) koppelt. Die Verbindungsstangen (110) bestehen aus Ge­lenkköpfen (120 und 122), die durch ein Spannschloß (124) miteinander verbunden sind.
Der Werkzeug-Halter (114) ist mittels zweier untereinandliegender Stangen (126) im Maschinengestell (36) längsbeweglich geführt. Am Halter (114) ist ein Posi­tionierwerkzeug (132) mit vier Arbeitsflächen (134 bis 140) für einen 4-stufigen Positoniervorgang angeordnet, während dessen die Längslage der Stif trohlinge (86) geändert werden kann.
Am Schlitten (12) ist, in einem Schlitz längseinstellbar, ein zussätzliches Po­sitonierwerkzeug (146) mittels des Bolzens (112), durch den der Gelenkkopf (122) befestigt ist, festgeklemmt. Dieses Positionierwerkzeug (146) ist mit nur zwei Arbeitsflächen (148, 150) zum axialen Verschieben der Stiftrohlinge (86) entge­gen der Verschieberichtung des ersten Positonierwerkzeugs (132) versehen. Ganz links in Fig. 1 ist das untere zweier gegeneinanderwirkender Schneidwerk­zeuge (152) der Schneideinrichtung der Vorrichtung zur Herstellung von Draht­stif ten zum Ablängen vom Draht (154) und pyramidenförmigen Anspitzen der Draht­stif trohlinge (86) angedeutet.In Fig. 2 is a carriage (12) of the upsetting device (14), which is part of a device for producing wire pins, via a bolt (16) seated in the forked end of the carriage (12) with the connecting rod (18) of a connecting rod (20) connected. The connecting rod (18) is held on the short-stroke crank pin (24) of the drive shaft (28) of the device by means of a connecting rod cover (22). The carriage (12), shown in its front working position in FIG. 2, has a dovetail guide over its entire length and is slidably mounted between two guide strips (32) on a base plate (34) in the machine frame (36). At its end facing away from the connecting rod (18), a threaded flange (40) with an internal thread is fastened to the slide (12), in which a set screw (42) is screwed, which is countered by means of a ring nut (44).
In an axial extension of the set screw (42), a swaging tool (54) of the swaging device (14) is arranged in a separate guide (48) in bearing bushes (50 and 52) and can be moved longitudinally, with sliding bearings. The bearing bush (50) is pressed into a cover (58) which is screwed onto the guide (48), while the bush (52) sits directly in the guide (48). At the end of the bushing (52) which extends into the guide (48), a shoulder is screwed against which one end of a compression spring (60) rests, the other end of which rests on a thrust ring (62) which is supported by a collar ( 56) of the upsetting tool (54) is held. The guide (48) with the floating upset tool (54) can be easily removed or replaced by means of two stud bolts (66) on a bearing block (68) attached to the machine frame (36), adjusted by means of a key (70) increases. Thanks to the return spring (60), the compression tool (54) is permanently non-positively on the hexagon head of the adjusting screw (42).
In the extension of the axis of the upsetting tool (54), two opposing clamping tools (76) of a clamping device (78) of the device for producing wire pins, which are seated in a lever or slide, are arranged in the immediate vicinity of this and symmetrically to this axis. In FIG. 1, a wire pin (82) with an upset head (84) is firmly clamped between the clamping tools (76), made from a pin blank (86). The shaft of the wire pin (82) projecting from the clamping tools (76) in FIG. 2 lies, firmly clamped, in the tooth gaps of two toothed belts (92 and 94) of a transport device (96) of the device for producing wire pins, with which the pin blanks (86) without head (84) intermittently, in the horizontal and vertical plane exactly in front of the upsetting tool (54) of the upsetting device (14) and guided away from it. The toothed belts (92 and 94) move gradually across the compression and clamping direction of the compression and clamping device (14,78). The distance between the toothed belts (92 and 94) from one another, and thus the tension with which the pin blanks (86) are held in the tooth gaps, can be set by means of a height-adjustable guide rail (98 or 100). Through lateral guide surfaces of the guide rails (98 and 100), the toothed belts (92 and 94) are also guided laterally immovably over the transport path which extends from a wire cutting device to the upsetting and clamping device.
In Fig. 1, a bearing (102) is attached to the front part of the guide of the carriage (12), in which a rocker arm (106) is mounted on a bolt (104). On each arm of this lever (106), a connecting rod (110) engages a bolt (108), which connects the rocker arm (106) on the one hand to the slide (12) of the upsetting device (14) via a bolt (112) and on the other hand couples a tool holder (114) to a positioning device (116) for the pin blanks (86) via a bolt (118). The connecting rods (110) consist of rod ends (120 and 122) which are connected to each other by a turnbuckle (124).
The tool holder (114) is by means of two rods (126) lying one below the other guided longitudinally in the machine frame (36). On the holder (114) is a positioning tool (132) with four working surfaces (134 to 140) for a 4-stage positioning process, during which the longitudinal position of the pin blanks (86) can be changed.
An additional positioning tool (146) is clamped to the slide (12), adjustable in length in a slot, by means of the bolt (112) through which the joint head (122) is fastened. This positioning tool (146) is provided with only two working surfaces (148, 150) for axially displacing the pin blanks (86) against the direction of displacement of the first positioning tool (132). On the far left in Fig. 1, the lower two counter-cutting tools (152) of the cutting device of the device for producing wire pins for cutting to length from the wire (154) and pyramid-shaped sharpening of the wire pin blanks (86) are indicated.

Die Wirkungsweise der beschriebenen Einrichtung ist folgende, wenn sie Teil der in Fig. 1 teilweise gezeigten Vorrichtung zur Herstellung von Drahtstiften ist: Ein nicht dargestellter, aber bekannter Einzug zieht den Draht (154) vom Draht­vorrat durch einen Richtapparat und schiebt, gemäß Fig. 1, soviel Draht durch die geöffneten Schneidwerkzeuge (152) hindurch und in die Zahnlücken der beiden Zahnriemen (92 und 94)) wobei in Fig. 1 nur der untere Zahnriemen (92) einge­zeichnet ist, hinein, wie für die gewünschte Drahtstiftlänge und zur Formung des Drahtstiftkopfes (84) benötigt wird. Nun schneiden die gegeneinanderwirkenden Schneidwerkzeuge (152), die in je einem Hebel oder in je einem Schlitten sitzen können, den Draht (154) ab, wobei eine pyramidenförmige Drahtstiftspitze (88) entsteht. Während des Einschiebens zwischen die beiden Zahnriemen (92 und 94) und Abschneidens des Drahtes (154) steht der intermittierende Antrieb des Zahn­riemenpaars (92 und 94) kurzzeitig still. Danach wird der Antrieb für kurze Zeit wieder eingeschaltet und das Zahnriemenpaar dadurch einen Schritt weiterbewegt, und vor einem erneuten Drahtvorschub wieder gestoppt (dies könnte auch durch ein Schrittschaltgetriebe erfolgen). Das geschieht so oft, bis ein abgelängter Stif­trohling (86) zwischen den Klemmwerkzeugen (76) der Klemmeinrichtung (78) und mittig vor dem Stauchwerkzeug (54) der Staucheinrichtung (14) zu liegen kommt. Um mit der Vorrichtung Stifte in einem möglichst großen Längenbereich ohne grö­ßere Umstellarbeiten herstellen zu können, wird zum Ausgleich dafür, daß die Schneidwerkzeuge (152) der Schneideinrichtung sowie die Klemm- und Stauchein­richtung (78,14) der Vorrichtung zur Herstellung von Drahtstiften (82) stationär angeordnet sind, der unterschiedliche Abstand von der Drahtstiftspitze (88) bis zum Stauchwerkzeug (54) bei der Fertigung einer anderen Stiftlänge durch Ver­schieben der Stiftrohlinge (86) in ihrer Längsrichtung innerhalb der Transport­strecke zwischen Schneidstation und Kopfanstauchstation ausgeglichen, und zwar folgendermaßen:The operation of the described device is as follows when it is part of the device for producing wire pins partially shown in FIG. 1: A feed, not shown but known, pulls the wire (154) from the wire supply through a straightening device and pushes it, as shown in FIG. 1 , as much wire through the opened cutting tools (152) and into the tooth gaps of the two toothed belts (92 and 94)), only the lower toothed belt (92) being drawn in in FIG. 1, as for the desired wire pin length and for shaping the Wire pin head (84) is required. Now the counter-cutting tools (152), each of which can be seated in a lever or in a carriage, cut off the wire (154), forming a pyramid-shaped wire pin tip (88). During the insertion between the two toothed belts (92 and 94) and the cutting of the wire (154), the intermittent drive of the toothed belt pair (92 and 94) stops briefly. The drive is then switched on again for a short time, thereby moving the pair of toothed belts one step further and stopping again before a new wire feed (this could also be done by a stepping gear). This happens until a cut-to-length pin blank (86) comes to rest between the clamping tools (76) of the clamping device (78) and in the middle in front of the upsetting tool (54) of the upsetting device (14). In order to be able to produce pins in the greatest possible length range with the device without major conversion work, the compensation is that the cutting tools (152) of the cutting device and the clamping and upsetting device (78, 14) of the device for producing wire pins (82) are arranged stationary, the different distance from the wire pin tip (88) to the upsetting tool (54) in the manufacture of a different pin length is compensated for by shifting the pin blanks (86) in their longitudinal direction within the transport path between the cutting station and the head upsetting station, as follows:

Das Positonieren der Stiftrohlinge (86) erfolgt durch die beiden Positonierwerk­zeuge (132 und 146) der Positioniereinrichtung (116), wobei das erste Werkzeug (132) seine vier Arbeitsflächen (134 bis 140) für einen schrittweisen Vorschub aufweist. Das schrittweise Positionieren erfolgt bei jedem Vorhub des Schlittens (12). Bei der Vorwärtsbewegung des Schlittens (12), also beim Erzeugen eines je­den Drahtstiftkopfes (84), wird das im Maschinengestell (36) geführte Positio­nierwerkzeug (132) über die Verbindungsstange (110) und den Wipp-Hebel (106) zur Transporteinrichtung (96) hin bewegt, so daß der zu diesem Zeitpunkt vor der er­sten Arbeitsfläche (134) des Positonierwerkzeugs (132) befindliche Stiftrohling (86) um einen bestimmten Betrag vorgeschoben wird. Wie bereits erwähnt, steht bei diesem Vorgang die Transporteinrichtung (96) still. Während der Schlitten (12) zurückläuft, wird der Antrieb kurzzeitig für ein Transportintervall betä­tigt, so daß der zuvor von der Arbeitsfläche (134) des Werkzeugs (132) vorbeweg­te Stiftrohling (86) sich nun vor der zweiten Arbeitsfläche (136) befindet und bei einem erneuten Stauchvorgang um das gleiche Haß vorgeschoben wird. Das ge­schieht so oft, bis der Stiftrohling (86) von der vierten Arbeitsfläche (140) des Positionierwerkzeugs (132) in seine vorderste Lage verschoben wurde. In die­ser Längslage wird der Stiftrohling (86) schrittweise in Richtung Stauchstation weitertransportiert, bis er vor der Arbeitsfläche (150) des zweiten Positionier­werkzeugs (146) zu liegen kommt. Ebenfalls von der Stauchbewegung des Schlittens (12) aus abgeleitet, wird der Stiftrohling (86) von der Arbeitsfläche (150) ggf. ein kurzes Stück zurückbewegt, wodurch die Längentoleranzen der Stiftrohlinge ausgeglichen werden, so daß er seine endgültige Lage eingenommen hat, und er kommt im Ausführungsbeispiel nach zwei Transportintervallen so zwischen den Klemmwerkzeugen (76) zu liegen, daß genau ein so großes Drahtende aus den Klemm­backen (76) herausragt, wie zur Formung des Drahtstiftkopfes (84) benötigt wird. Bei längeren Stiftrohlingen (86) erfolgt deren Zurückbewegung durch das zweite Positionierwerkzeug (146) in zwei Schritten, und zwar derart, daß die Stiftroh­linge zuerst von der Arbeitsfläche (148) und daran anschließend von der Arbeits­fläche (150) in die endgültige Lage zurückbewegt werden.The positioning of the pin blanks (86) is carried out by the two positioning tools (132 and 146) of the positioning device (116), the first tool (132) having its four working surfaces (134 to 140) for a gradual feed. The step-by-step positioning takes place with each advance stroke of the slide (12). When the carriage (12) moves forward, i.e. when each wire pin head (84) is produced, the positioning tool (132) guided in the machine frame (36) is transferred to the transport device (96) via the connecting rod (110) and the rocker arm (106). Moved so that the pin blank (86) located at the time in front of the first working surface (134) of the positioning tool (132) is advanced by a certain amount. As already mentioned, the transport device (96) stands still during this process. While the carriage (12) is running back, the drive is actuated briefly for a transport interval, so that the pin blank (86) previously moved from the working surface (134) of the tool (132) is now in front of the second working surface (136) and at one renewed upsetting is pushed forward by the same hatred. This happens until the pin blank (86) has been moved from the fourth working surface (140) of the positioning tool (132) to its foremost position. In this longitudinal position, the pin blank (86) is gradually transported in the direction of the upsetting station until it comes to rest in front of the working surface (150) of the second positioning tool (146). Also derived from the compression movement of the carriage (12), the pin blank (86) is possibly moved back a short distance from the work surface (150), as a result of which the length tolerances of the pin blanks are compensated for so that it has reached its final position, and he In the exemplary embodiment, after two transport intervals, it lies between the clamping tools (76) in such a way that exactly such a large wire end protrudes from the clamping jaws (76) as is required to form the wire pin head (84). In the case of longer pin blanks (86), the second positioning tool (146) moves them back in two steps, in such a way that the pin blanks are first moved back from the work surface (148) and then from the work surface (150) to the final position.

Es ist offensichtlich, daß auf die Positioniereinrichtung (116) gänzlich ver­zichtet werden kann, wenn nur Stifte einer Längenordnung gefertigt werden sol­len, oder aber) wenn keine so hohe Stiftqualität verlangt wird. Die Schneidein­richtung wird dann so angeordnet) daß die Stiftrohlinge (86) so in der Trans­porteinrichtung (96) zu liegen kommen, daß gerade ein solches Drahtende aus den Klemmwerkzeugen (76) herausragt, wie für die Kopferzeugung beim Stauchvorgang benötigt wird.
Schließen die Klemmbacken (76), dann halten sie den Stiftrohling (86) für den nun folgenden Stauchvorgang zum Erzeugen des Stiftkopfes (84) fest. Hierzu wird die Pleuelstange (18) vom (Kurzhub-) Kurbelzapfen (24) der Antriebswelle (28) in Bewegung gesetzt, die dem Schlitten (12) eine hin- und hergehende Bewegung ver­leiht. Diese hin- und hergehende Bewegung macht das, durch die Rückholfeder (60) nicht formschlüssig mit dem Sechskant der Stellschraube (46) verbundene Stauch­werkzeug (54) mit, und erzeugt bei jeder Vorwärtsbewegung einen Kopf (84) an dem Stiftrohling (86), wobei die Klemmwerkzeuge (76) als Amboß dienen. Bei jeder Rückwärtsbewegung des Schlittens (12) entspannt sich die Druckfeder (60) und sie drückt das Stauchwerkzeug (54) über den Anlaufring (62) am Bund (56) des Stauch­werkzeugs (54) zurück, so daß dieses in dauernder kraftschlüssiger Anlage an der Stellschraube (42) verbleibt. Die Höhe des Stauchdruckes (und damit auch die Form des Drahtstiftkopfes) kann mittels der Stellschraube (42) durch mehr oder weniger weites Eindrehen derselben in den Gewindeflansch (40) am Schlitten (12) eingestellt werden.
Bei jedem Transportschritt wird ein fertiger Drahtstift (82) aus dem Werkzeugbe­reich heraus weiter bewegt, während ein neuer Stiftrohling (86) zwischen die Werkzeuge (54 und 76) gelangt, worauf der Vorgang von neuem beginnt. Nach eini­gen Transportintervallen fallen die fertigen Stifte (82) am Ende der Transport­strecke ohne zusätzlichen Ausstoßer über eine Rutsche sicher aus, oder es können die geordnet ankommenden fertigen Stifte zur Magazinierung oder sonstigen Wei­terverarbeitung auch einzeln automatisch entnommen und abgeführt werden.It is obvious that the positioning device (116) can be dispensed with entirely if only pins of a length order are to be produced, or if the pin quality is not so high. The cutting device is then arranged so that the pin blanks (86) come to rest in the transport device (96) in such a way that just such a wire end comes out of the Clamping tools (76) protrude as is required for the head production during the upsetting process.
When the clamping jaws (76) close, they hold the pin blank (86) for the following upsetting process to produce the pin head (84). For this purpose, the connecting rod (18) is set in motion by the (short-stroke) crank pin (24) of the drive shaft (28), which gives the carriage (12) a reciprocating movement. This reciprocating movement does this with the upset tool (54), which is not positively connected to the hexagon of the adjusting screw (46) by the return spring (60), and generates a head (84) on the pin blank (86) with each forward movement, whereby the clamping tools (76) serve as an anvil. With each backward movement of the carriage (12), the compression spring (60) relaxes and it presses the upsetting tool (54) over the thrust ring (62) on the collar (56) of the upsetting tool (54), so that it is in permanent non-positive contact with the Set screw (42) remains. The height of the upsetting pressure (and thus also the shape of the wire pin head) can be adjusted by means of the adjusting screw (42) by screwing it more or less far into the threaded flange (40) on the slide (12).
With each transport step, a finished wire pin (82) is moved further out of the tool area, while a new pin blank (86) gets between the tools (54 and 76), whereupon the process begins again. After a few transport intervals, the finished pins (82) fall out safely via a slide at the end of the transport route without an additional ejector, or the ordered, arriving finished pins can also be automatically removed and removed for magazine or other processing.

Dadurch, daß das Stauchwerkzeug (54) in einer separaten Führung (48) angeordnet ist und nicht mit dem Schlitten (12) formschlüssig verbunden ist, können das Stauchwerkzeug (54) samt Führung (48) als Einheit durch einfaches Lösen der Mut­tern der Stehbolzen (66) leicht abgenommen und ggf. ausgetauscht werden. Ferner können die Klemmwerkzeuge (76) nach Entfernen dieser Einheit leicht zugänglich ausgewechselt werden.
Ein weiterer Vorteil dieser, außerhalb des Schlittens (12) buchsgeführten Stauchwerkzeuganordnung ist deren lange Rundführung, die sich über einen relativ großen Teil der Werkzeuglänge beidseitig erstreckt, wodurch für eine spielfreie und verkantungsfreie Lagerung des Werkzeugs gesorgt ist.
Ferner muß der Stauchdruck nicht wie bisher vom Schlitten (12) und von dessen Führungsleisten (32, 34) aufgenommen werden, die bei zu großem Verschleiß als Ganzes ausgewechselt werden müssten. Bei der bekannten, nicht getrennten Anord­nung von Schlitten und Stauchwerkzeug, übertrug sich bei zunehmendem Verschleiß des Schlittens und der Führungsteile, d.h. bei größer werdendem Führungsspiel die Ungenauigkeit auf das hergestellte Produkt, so daß die Maschine dauernd überwacht werden mußte, um keinen Ausschuß zu produzieren. Mit zunehmendem Füh­rungsspiel wurde die Maschine immer lauter.Because the upsetting tool (54) is arranged in a separate guide (48) and is not positively connected to the slide (12), the upsetting tool (54) together with the guide (48) can be removed as a unit by simply loosening the nuts of the stud bolts ( 66) can be easily removed and replaced if necessary. Furthermore, the clamping tools (76) can be replaced easily accessible after removing this unit.
Another advantage of this, book-led outside of the carriage (12) Upsetting tool arrangement is its long round guide, which extends over a relatively large part of the tool length on both sides, which ensures that the tool is supported without play and tilting.
Furthermore, the upsetting pressure does not have to be absorbed by the slide (12) and its guide strips (32, 34), which would have to be replaced as a whole in the event of excessive wear. In the known, not separate arrangement of slide and upsetting tool, the inaccuracy was transferred to the manufactured product with increasing wear of the slide and the guide parts, ie with increasing guide play, so that the machine had to be continuously monitored in order not to produce any rejects. The machine became louder and louder as the leadership game increased.

Claims (12)

1.) Staucheinrichtung zum Stauchen der Enden länglicher Werkstücke wie Drahtstücke, insbesondere zum Erzeugen von Köpfen an Nägeln; mit einem Stauchwerkzeug, das mittels eines Stauchschlittens vor und zurück bewegbar ist, dadurch gekennzeichnet, daß das Stauchwerkzeug (54) vom Stauchschlitten (12) getrennt, in seiner Bewegungsrichtung verschieblich, separat von der Schlittenführung (34) in einer eigenen Längsführung (48/52, 58/50) gelagert ist und daß das Stauchwerkzeug (54) kraftschlüssig an dem es beaufschlagenden Teil (42) des Stauchschlittens (12) anliegt.1.) upsetting device for upsetting the ends of elongated workpieces such as wire pieces, in particular for producing heads on nails; with an upsetting tool which can be moved back and forth by means of an upsetting slide, characterized in that the upsetting tool (54) is separated from the upsetting slide (12) and can be moved in its direction of movement, separately from the slide guide (34) in its own longitudinal guide (48/52 , 58/50) is mounted and that the upsetting tool (54) rests non-positively on the part (42) of the upsetting carriage (12) acting on it. 2.) Staucheinrichtung nach Anspruch 1, dadurch gekennzeichnet, daß die Längsführung (48/52, 58/50) des Stauchwerkzeuges (54) ein Lagergehäuse (48,58) mit zwei kolinearen Lagerbuchsen (50 und 52) zur Rundführung des runden Stauchwerkzeuges (54) aufweist.2.) upsetting device according to claim 1, characterized in that the longitudinal guide (48/52, 58/50) of the upsetting tool (54) is a bearing housing (48, 58) with two colinear bearing bushes (50 and 52) for round guidance of the round upsetting tool ( 54) has. 3.) Staucheinrichtung nach Anspruch 2, dadurch gekennzeichnet, daß das Lagergehäuse (48,58) mittels einer Paßfeder (70) justiert an einem stationären Lagerbock (68) lösbar befestigt ist.3.) upsetting device according to claim 2, characterized in that the bearing housing (48,58) by means of a feather key (70) is releasably attached to a stationary bearing block (68). 4.) Staucheinrichtung nach Anspruch 2 oder 3, dadurch gekennzeichnet, daß das Lagergehäuse (48,58) als Federgehäuse ausgebildet ist, das eine das Stauchwerkzeug (54) aufnehmende Druck-Schraubenfeder (60) einschließt, die sich einenends an einem Bund (56) des Stauchwerkzeugs (54) abstützt.4.) upsetting device according to claim 2 or 3, characterized in that the bearing housing (48,58) is designed as a spring housing which includes a compression coil spring (60) receiving the upsetting tool (54), which ends at one end on a collar (56 ) supports the upsetting tool (54). 5.) Staucheinrichtung nach einem der Ansprüche 1 bis 3,dadurch gekennzeichnet; daß als das Stauchwerkzeug (54) beaufschlagender Teil des Stauchschlittens (12) ein Stellglied (42) zur Längenänderung des Schlittens (12) vorgesehen ist, welches vorzugsweise als Kopfschraube (42) ausgebildet ist.5.) upsetting device according to one of claims 1 to 3, characterized; that an actuator (42) for changing the length of the carriage (12) is provided as the part of the compression carriage (12) which acts on the compression tool (54) and which is preferably designed as a cap screw (42). 6.) Staucheinrichtung nach einem der Ansprüche 1 bis 5, gekennzeichnet durch Zusatz einer Positioniereinrichtung (116) zum Anordnen der Werkstücke (86) längs ihrer Achse, mit mindestens einem Positionierwerkzeug (132 oder 146) zum Verschieben wenigstens eines Werkstückes in seiner Längsrichtung um eine vorbestimmte Strecke.6.) upsetting device according to one of claims 1 to 5, characterized by the addition of a positioning device (116) for arranging the workpieces (86) along their axis, with at least one positioning tool (132 or 146) for displacing at least one workpiece in its longitudinal direction by one predetermined route. 7.) Staucheinrichtung mit Positioniereinrichtung, nach Anspruch 6, dadurch gekennzeichnet, daß das Positionierwerkzeug (132 oder 146) ein parallel zur Längsrichtung der zu verschiebenden Werkstücke (86) verschiebbarer starrer Körper ist, der zumindest eine parallel zur Längsrichtung der Werkstücke (86) bewegbare Arbeitsfläche (134 oder 136 oder 138 oder 140 bzw. 148 oder 150) aufweist, die während ihres Arbeitshubs ein auf dessen Strecke liegendes Werkstückende beaufschlagt und mitnimmt.7.) upsetting device with positioning device, according to claim 6, characterized in that the positioning tool (132 or 146) is a parallel to the longitudinal direction of the workpieces to be displaced (86) displaceable rigid body which is movable at least one parallel to the longitudinal direction of the workpieces (86) Has work surface (134 or 136 or 138 or 140 or 148 or 150), which acts and takes along a workpiece end lying on its path during its working stroke. 8.) Staucheinrichtung mit Positioniereinrichtung, nach Anspruch 6 oder 7, dadurch gekennzeichnet, daß das Positionierwerkzeug (132 oder 146) mit dem Stauchschlitten (12) für eine gleich- oder gegensinnige, gleichgerichtete, geradlinige Bewegung gekoppelt ist.8.) upsetting device with positioning device, according to claim 6 or 7, characterized in that the positioning tool (132 or 146) with the upsetting carriage (12) is coupled for a same or opposite, rectified, rectilinear movement. 9.) Staucheinrichtung mit Positioniereinrichtung, nach Anspruch 8, daß das Positionierwerkzeug (132) und der Stauchschlitten (12) mittels eines zweiarmigen Hebels (106), der an einem mit der Schlittenführung (32,34) fest verbundenen Lager (102) drehbar angeordnet ist, und mittels zweier Gelenkstangen (120, 122, 124) gekoppelt sind.9.) upsetting device with positioning device, according to claim 8, that the positioning tool (132) and the upsetting slide (12) by means of a two-armed lever (106) which is rotatably arranged on a bearing (102) fixedly connected to the slide guide (32, 34) and are coupled by means of two articulated rods (120, 122, 124). 10.) Staucheinrichtung mit Positoniereinrichtung, nach Anspruch 9, dadurch gekennzeichnet, daß als Gelenkstangen (120, 122, 124) je ein Spannschloß (124) mit endseitigen Gelenklagern (120 und 122) vorgesehen sind.10.) upsetting device with positioning device, according to claim 9, characterized in that each as a pivot rod (120, 122, 124) a turnbuckle (124) with end-side spherical bearings (120 and 122) are provided. 11.) Staucheinrichtung mit Positioniereinrichtung, nach einem der Ansprüche 8 bis 10, dadurch gekennzeichnet, daß ein Positionierwerkzeug (146) in seiner Hubrichtung verstellbar am Stauchschlitten (12) befestigt ist.11.) upsetting device with positioning device, according to one of claims 8 to 10, characterized in that a positioning tool (146) is fixed in its stroke direction on the upsetting carriage (12). 12.) Verwendung der Staucheinrichtung, gegebenenfalls mit Positioniereinrichtung nach einem der Ansprüche 1 bis 11 in einer drahtverarbeitenden Maschine, insbesondere einer Stiftpresse als Vorrichtung zur Herstellung von Drahtstiften, insbesondere Kopfnägeln.12.) Use of the upsetting device, possibly with positioning device according to one of claims 1 to 11 in a wire processing machine, in particular a pin press as a device for producing wire pins, in particular head nails.
EP89121114A 1989-07-08 1989-11-15 Compression device for compressing the ends of elongated workpieces such as pieces of wire and application of such a device in a wire-working machine for manufacturing pins Expired - Lifetime EP0407657B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3922531 1989-07-08
DE3922531A DE3922531C1 (en) 1989-07-08 1989-07-08

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EP0407657A1 true EP0407657A1 (en) 1991-01-16
EP0407657B1 EP0407657B1 (en) 1994-01-12

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Family Applications (1)

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EP89121114A Expired - Lifetime EP0407657B1 (en) 1989-07-08 1989-11-15 Compression device for compressing the ends of elongated workpieces such as pieces of wire and application of such a device in a wire-working machine for manufacturing pins

Country Status (6)

Country Link
US (1) US5088312A (en)
EP (1) EP0407657B1 (en)
JP (1) JPH0712511B2 (en)
KR (1) KR920009832B1 (en)
DE (2) DE3922531C1 (en)
ES (1) ES2048814T3 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0566938A1 (en) * 1992-04-22 1993-10-27 Friedhelm Post Sondermaschinen Process and bending machine for producing a bended wire or tube part with an upsetted zone
EP0589389A1 (en) * 1992-09-25 1994-03-30 United States Surgical Corporation Needle blank feeding apparatus

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109217075B (en) * 2017-07-04 2020-07-28 泰科电子(上海)有限公司 Wire processing apparatus
CN110038987B (en) * 2019-05-15 2024-03-26 邹建明 Cold header die for hook nail processing and forming and method thereof

Citations (6)

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DE49164C (en) * E. fontaine in Auburndale, Ohio, V. St. A Method and machine for producing wire nails
US3514992A (en) * 1967-11-29 1970-06-02 Braun Eng Co Cold header
US3588933A (en) * 1968-06-19 1971-06-29 George J Shinopulos Method and apparatus for simultaneously upset forming both ends of a ductile material rod blank or the like
US4270651A (en) * 1979-01-17 1981-06-02 Universal Instruments Corporation Taped belt electronic component centering device
US4737227A (en) * 1986-02-27 1988-04-12 Universal Instruments Corporation Axial leaded component centering device and method of centering components
DE3805628A1 (en) * 1987-03-12 1988-09-22 Nat Machinery Co FORGING MACHINES WITH CLOSED DIE

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US2595433A (en) * 1947-06-18 1952-05-06 Waterbury Farrel Foundry & Mac Shaft driving mechanism for headers or like machines
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Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE49164C (en) * E. fontaine in Auburndale, Ohio, V. St. A Method and machine for producing wire nails
US3514992A (en) * 1967-11-29 1970-06-02 Braun Eng Co Cold header
US3588933A (en) * 1968-06-19 1971-06-29 George J Shinopulos Method and apparatus for simultaneously upset forming both ends of a ductile material rod blank or the like
US4270651A (en) * 1979-01-17 1981-06-02 Universal Instruments Corporation Taped belt electronic component centering device
US4737227A (en) * 1986-02-27 1988-04-12 Universal Instruments Corporation Axial leaded component centering device and method of centering components
DE3805628A1 (en) * 1987-03-12 1988-09-22 Nat Machinery Co FORGING MACHINES WITH CLOSED DIE

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0566938A1 (en) * 1992-04-22 1993-10-27 Friedhelm Post Sondermaschinen Process and bending machine for producing a bended wire or tube part with an upsetted zone
EP0589389A1 (en) * 1992-09-25 1994-03-30 United States Surgical Corporation Needle blank feeding apparatus
US5371338A (en) * 1992-09-25 1994-12-06 United States Surgical Corporation Needle blank feeding apparatus
US5453595A (en) * 1992-09-25 1995-09-26 United States Surgical Corporation Needle blank feeding apparatus

Also Published As

Publication number Publication date
DE58906717D1 (en) 1994-02-24
EP0407657B1 (en) 1994-01-12
ES2048814T3 (en) 1994-04-01
JPH0352734A (en) 1991-03-06
JPH0712511B2 (en) 1995-02-15
US5088312A (en) 1992-02-18
DE3922531C1 (en) 1990-10-31
KR920009832B1 (en) 1992-10-31
KR910002534A (en) 1991-02-25

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