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Número de publicaciónCN105545909 A
Tipo de publicaciónSolicitud
Número de solicitudCN 201610093542
Fecha de publicación4 May 2016
Fecha de presentación18 Feb 2016
Fecha de prioridad18 Feb 2016
Número de publicación201610093542.7, CN 105545909 A, CN 105545909A, CN 201610093542, CN-A-105545909, CN105545909 A, CN105545909A, CN201610093542, CN201610093542.7
Inventores郗建豪, 张晓斌, 贾晓娇, 樊金桃, 张晓玲, 郭双双
Solicitante航天精工股份有限公司
Exportar citaBiBTeX, EndNote, RefMan
Enlaces externos:  SIPO, Espacenet
Core bar self-locking type blind rivet
CN 105545909 A
Resumen
The invention initiatively provides a core bar self-locking type blind rivet. The core bar self-locking type blind rivet comprises a core bar and a rivet sleeve, wherein the core bar is divided into a bar part and a riveting part by a breaking slot, the bar part is sleeved with the rivet sleeve, the outer diameter of the portion, from the end part to the inside, of the riveting part or the outer diameter of the whole riveting part is larger than the inner diameter of the rivet sleeve, and a hollow groove extends inwards from the center of the end part of the riveting part. The core bar self-locking type blind rivet has high integration degree, doesn't require a lock ring and can be locked only through the structure of the core bar.
Reclamaciones(7)  traducido del chino
1.一种芯杆自锁紧型抽芯铆钉,包括芯杆和钉套;所述芯杆由断颈槽分为杆部和铆接部两部分,杆部上套装有所述钉套,所述铆接部的自端部向内的部分或全部外径大于所述钉套的内径,所述铆接部自端部中央向内延伸有空心槽。 A self-locking mandrel type blind rivets, including a mandrel and a nail set; the stem by a break-neck groove divided into two parts and riveting shank portion, the stem portion of the nail sleeved jacket, the inwardly from said end portion of the caulking portion or all of an outer diameter greater than the inner diameter of the sheath staple, the central portion of the caulking portion extending inwardly from the end hollow grooves.
2.根据权利要求1所述的一种芯杆自锁紧型抽芯铆钉,其特征在于,所述空心槽所在的铆接部尾段部分的外径略大于所述钉套的内径;未延伸有所述空心槽的铆接部头段部分的外径与所述钉套的内径基本相同,所述铆接部的尾段部分与头段部分之间设有过渡斜面。 2. According to a self-locking mandrel type of claim 1, wherein the blind rivet, characterized in that the outer diameter of the hollow portion of the tail section caulking portion where the groove is slightly larger than the inner diameter of the nail sleeve; undrawn has an outer diameter of the hollow rivet Butou segment portion of the groove and the inner diameter of the sleeve is substantially the same staple with transition ramp portion of the caulking portion between the end section and the header section.
3.根据权利要求1所述的一种芯杆自锁紧型抽芯铆钉,其特征在于,所述钉套尾端内侧还设有导入斜面。 3. According to a self-locking mandrel type of claim 1, wherein the blind rivet, characterized in that the inner side of the rear end is also a nail sets import slope.
4.根据权利要求1所述的一种芯杆自锁紧型抽芯铆钉,其特征在于,所述钉套头部为圆台状的支撑结构。 4. According to a self-locking mandrel type of claim 1, wherein the blind rivet, characterized in that the nail head frustoconical sleeve support structure.
5.根据权利要求4所述的一种芯杆自锁紧型抽芯铆钉,其特征在于,所述支撑结构的端面上向内开设有台阶。 5. According to a self-locking mandrel of claim 4, wherein the type blind rivet, characterized in that the end face of the support structure opened inwardly stepped.
6.根据权利要求5所述的一种芯杆自锁紧型抽芯铆钉,其特征在于,本发明创造的铆钉还包括铆接垫片,套装于所述芯杆上并位于所述钉套的支撑结构一侧,所述铆接垫片上向所述支撑结构一侧凸出延伸有一凸台,所述凸台的外径与所述钉套的台阶的大径向匹配。 6. According to a self-locking type stem blind rivet according to claim 5, characterized in that the present invention also include the creation of a rivet riveting gasket kit located in the core of the rod and nail sleeve one side of the support structure, said upper riveting gasket to the side of the support structure has a projection extending boss, said boss outer diameter matches the staple sleeve large radial step.
7.根据权利要求1所述的一种芯杆自锁紧型抽芯铆钉,其特征在于,所述芯杆的杆部的端部设有夹持结构。 7. According to a self-locking mandrel type of claim 1, wherein the blind rivet, characterized in that the end of the rod portion of the mandrel has a holding structure.
Descripción  traducido del chino
一种芯杆自锁紧型抽芯铆钉 One kind of self-locking mandrel type blind rivets

技术领域 TECHNICAL FIELD

[0001]本发明创造属于紧固件设计和制造技术领域,尤其涉及芯杆自锁紧型抽芯铆钉。 [0001] The present invention belongs to the creation of a fastener design and technology manufacturing, particularly to stem from locking type blind rivets.

背景技术 Background technique

[0002]抽芯铆钉是一种可以进行单面安装的紧固件,广泛应用于航空航天器的连接中。 [0002] is a kind of blind rivets can be installed on one side of the fastener, widely used in aerospace vehicles connection. 抽芯铆钉的应用可以改善飞行器的内部结构设计,不用为安装预留过多的工艺空间;抽芯铆钉安装简单快捷,有专用的铆枪,安装过程中噪声和震动都大大的降低了。 Blind rivet applications can improve the interior design of the aircraft, not reserved for the installation process too much space; simple and quick installation of blind rivets, a dedicated riveting gun, the installation process noise and vibration are greatly reduced. 抽芯铆钉可用于金属材料连接,也有专门设计应用于复合材料连接的抽芯铆钉,可承受较大的抗拉和抗剪力,抽芯铆钉广泛的用于单面安装、维修等场合。 Blind rivets can be used to connect a metallic material, there are also specially designed for composite connection blind rivet, can withstand greater tensile and shear strength, blind rivets widely used single-sided installation, maintenance and other occasions. 一般的航空航天用抽芯铆钉由芯杆、钉套和锁环等附件零件组成,安装铆接后,通过锁环等零件进行机械锁紧。 General Aerospace blind rivets from the stem, and nail sleeve lock ring accessory parts, caulking after installation, by mechanical locks and other parts of the locking ring. 但是这些抽芯铆钉在安装时,锁环有安装失败的风险;当此类抽芯铆钉用于高振动区域或安装使用时间较久时,锁环有脱落的风险。 But these blind rivets when installing the lock ring there is a risk that failed to install; when these blind rivets used in high vibration areas or installation time is longer, the risk of the lock ring off. 如飞机发动机进气口就禁止应用带锁环的抽芯铆钉。 Such as aircraft engine inlet on the prohibition of interlocking rings of blind rivets.

发明内容 SUMMARY

[0003]本发明创造为解决现有技术中的问题,提供了一种芯杆自锁紧型抽芯铆钉,结构一体化程度高,无需通过锁环,仅通过芯杆自身结构即可进行锁紧。 [0003] The present inventions to solve the prior art problems and to provide a self-locking mandrel type blind rivets, a high degree of structural integration, without going through the lock ring, only through the stem structure itself can be locked tight.

[0004]本发明创造提供的一种芯杆自锁紧型抽芯铆钉,包括芯杆和钉套;所述芯杆由断颈槽分为杆部和铆接部两部分,杆部上套装有所述钉套,所述铆接部的自端部向内的部分或全部外径大于所述钉套的内径,所述铆接部自端部中央向内延伸有空心槽。 [0004] A stem from the creation of the present invention to provide a locking type blind rivet, comprising a core rod and nail sets; the stem by a break-neck groove divided into two parts and riveting shank portion, the stem portion sleeved the nail sleeve, inwardly from the end portion of the caulking portion of an outer diameter greater than the inner diameter of some or all of the sets of staple, the central portion from the end portion of the caulking inwardly extending hollow grooves.

[0005]其中,所述空心槽所在的铆接部尾段部分的外径略大于所述钉套的内径;未延伸有所述空心槽的铆接部头段部分的外径与所述钉套的内径基本相同,所述铆接部的尾段部分与头段部分之间设有过渡斜面。 [0005] wherein the outer diameter of the caulking portion of the hollow portion of the tail section where the groove is slightly larger than the inner diameter of the nail sleeve; there is the undrawn portion of the hollow rivet Butou segment groove and the outer diameter of the screw sleeve an inner diameter substantially the same, with a transition ramp between a portion of the tail section and the caulking portion of the header section.

[0006]其中,所述钉套尾端内侧还设有导入斜面。 [0006] wherein the inner side of the rear end is also a nail sets import slope.

[0007]其中,所述钉套头部为圆台状的支撑结构。 [0007] wherein the nail head frustoconical sleeve support structure. 进一步,所述支撑结构的端面上向内开设有台阶。 Further, the support structure of the end surface inwardly stepped up.

[0008]其中,本发明创造的铆钉还包括铆接垫片,套装于所述芯杆上并位于所述钉套的支撑结构一侧,所述铆接垫片上向所述支撑结构一侧凸出延伸有一凸台,所述凸台的外径与所述钉套的台阶的大径向匹配,优选的等于或略大于所述钉套的台阶的大径。 [0008] However, the present invention also include the creation of a rivet riveting gasket kit to the mandrel and the support structure located on one side of the nail sets, riveting gasket on the supporting structure to the convex side extends a boss, the boss and the outer diameter of the large nail sleeve radially matching step, preferably equal to or slightly greater than the staple sheath stepped large diameter.

[0009]其中,所述芯杆的杆部的端部设有夹持结构。 [0009] wherein the end portion of the mandrel stem portion is provided with the holding structure.

[0010]本发明创造的芯杆自锁紧型抽芯铆钉,结构一体化程度高,分件少,无需依靠附加的零件(如锁环)进行锁紧,避免了因锁环存在带来的安装失败或脱落的风险,仅通过芯杆自身结构即可进行锁紧,提高了抽芯铆钉的可靠性。 [0010] The present inventions stem from locking type blind rivets, a high degree of structural integration, sub-items less need to rely on additional components (such as lock ring) is locked to avoid due to the presence of the lock ring to bring install risk of failure or loss of, only through the stem structure itself can be locked, to improve the reliability of the blind rivet.

附图说明 BRIEF DESCRIPTION

[0011]图1是本发明创造一种实施方式的整体结构示意图; [0011] FIG. 1 is a schematic view of the present invention is to create an overall configuration of one embodiment;

[0012]图2是本发明创造芯杆的结构示意图; [0012] FIG. 2 is a schematic view of the structure of the present invention is to create a core rod;

[0013]图3是本发明创造钉套的结构示意图; [0013] FIG. 3 is a schematic view of the structure of the present invention to create a nail sleeve;

[0014]图4是本发明创造铆接砧片的结构示意图; [0014] FIG. 4 is a block diagram to create a riveting anvil sheet of the present invention;

[0015]图5是本发明创造安装后的结构示意图; [0015] FIG. 5 is a block diagram of the present invention, after the creation of the installation;

[0016]图6是图5中画圈部分(锁紧结构)的局部放大图。 [0016] FIG. 6 is a circled portion in FIG. 5 (locking structure) is a partial enlarged view.

[0017]其中,1-芯杆;11-断颈槽;12-杆部;121-夹持结构;13-铆接部;131-尾段部分;132-头段部分;133-过渡斜面;14-空心槽;2-钉套;21-导入斜面;22-支撑结构;23-台阶;3-铆接垫片;31-凸台。 [0017] wherein, 1 core rod; 11- broken neck groove; 12- shank; 121- holding structure; 13- caulking portion; 131- Endian part; 132- header portion; 133- transition ramp; 14 - hollow groove; 2- nail sets; 21- import ramp; 22- support structure; 23- step; 3 - riveting gasket; 31- bosses.

具体实施方式 detailed description

[0018]下面通过结合附图对本发明创造进行进一步说明。 [0018] The following drawings in conjunction with the present invention will be further described creation.

[0019]本发明创造结构一种实施方案如图1-4所示,包括芯杆I和钉套2;所述芯杆I由断颈槽11分为杆部12和铆接部13两部分,杆部12上套装有所述钉套2,所述铆接部13的自端部向内的部分或全部外径大于所述钉套2的内径,所述铆接部13自端部中央向内延伸有空心槽14。 [0019] The present invention is to create a structure of an embodiment shown in Figure 1-4, includes a core rod and nail sets I 2; I made off the mandrel 11 into the groove 12 and the neck portion of the rod portion 13 caulking two parts, set the lever portion 12 has two sets of the nail, from the end portion of the caulking portion 13 of the inner part or all of the outer diameter greater than the inner diameter of the sheath staple 2, the central portion of the caulking portion 13 extending inwardly from the end hollow groove 14.

[0020]其中,所述铆接部13自端部向内的所述空心槽14及外径的设置使安装过程中,铆接部13进入钉套2内时变细,同时钉套2膨胀,从而空心槽14所在的铆接部13的端部易于发生变形而形成盲铆头结构,实现抽芯铆钉的自锁紧作用。 [0020] wherein, provided said hollow portion of said caulking groove 13 inwardly from the end portion 14 and an outer diameter of the mounting process, the nail into the caulking portion 13 when the tapered sleeve 2, while the expansion nail sleeve 2, whereby the ends of the hollow groove 14 where the caulking portion 13 easily deforms to form a blind rivet structure to achieve blind rivet self locking action. 为了进一步方便自锁紧作用的实现,优选的,使所述空心槽14所在的铆接部13尾段部分131的外径略大于所述钉套2的内径;未延伸有所述空心槽14的铆接部13头段部分132的外径与所述钉套2的内径基本相同,所述铆接部13的尾段部分131与头段部分132之间设有过渡斜面133。 To further facilitate the realization of self-locking effect, it is preferable that the hollow portion 14 where the caulking groove 13 is slightly larger than the outer diameter of the tail section of the portion 131 of the inner diameter of the sleeve 2 of the nail; not hollow groove 14 extends in the an outer diameter portion 132 of the segment 13 and the staple sleeve caulked portion 2 is substantially the same inner diameter, with between 131 and 133 transition ramp portion 132 the header portion of the end section 13 of the caulking portion.

[0021]其中,为了进一步方便所述铆接部13在安装过程进入钉套2,减小进入阻力,在所述钉套2尾端内侧还设有导入斜面21。 [0021] wherein, in order to further facilitate the caulking portion 13 during installation into the nail cover 2, into the reduced resistance, at the end of the inside of the nail sheath 2 also has import ramp 21.

[0022]其中,所述钉套2头部为圆台状的支撑结构22,用于承载被连接基体和铆钉的作用力。 [0022] wherein the sleeve 2 nail head frustoconical support structure 22 is connected for carrying force base and rivets. 进一步,所述支撑结构22的端面上向内开设有台阶23,当芯杆I的铆接部13安装并拉入钉套2完成后,铆接部13靠近断颈槽11的端部会在承载压力的作用下发生变形,并与所述钉套2的台阶23卡合,形成一个锁紧结构,使芯杆I不会脱落。 Further, the support structure 22 of the end face of a stepped inwardly opening 23, when the caulking portion of the mandrel 13 is installed and I pulled into the nail after 2 complete sets, caulking portion 13 near the ends of the broken neck groove 11 in the bearing pressure deformation occurs, and with the engagement step 23 nail sleeve 2 to form a locking structure, so I will not fall off the stem.

[0023]其中,本发明创造的铆钉还包括铆接垫片3,套装于所述芯杆I上并位于所述钉套2的支撑结构22—侧,所述铆接垫片3上向所述支撑结构22—侧凸出延伸有一凸台31,所述凸台31的外径与所述钉套2的台阶23的大径向匹配,优选的等于或略大于所述钉套2的台阶23的大径。 [0023] However, the present invention also include the creation of a rivet riveting gasket 3, suits to the stem I and located on the side of the nail sheath support structure 22- 2, the riveting gasket 3 to the support 22- convex structure extends a boss 31, the outer diameter of the boss 31 matches the nail step 232 sets of large radial, preferably equal to or slightly larger than the nail of the 232 sets of stairs large diameter. 铆接垫片3及其凸台31的设置,使芯杆I的铆接部13安装并拉入钉套2完成后,在铆接部13靠近断颈槽11的端部更易受到铆接垫片3的凸台31传递的力,从而更易发生变形并形成锁紧结构,完成卡合并锁紧。 Riveting gasket set 3 and boss 31, the core rod I install caulking portion 13 and pulled into the rear nail sleeve 2 is completed, the caulking portion 13 near the ends of the broken neck groove 11 are more vulnerable riveting gasket projection 3 force transfer station 31, which are more likely to deform and form locking structure, the merger is completed card lock.

[0024]其中,所述芯杆I的杆部12的端部设有夹持结构121,如对称设置的向内加工的凹平面,便于安装工具(如拉铆枪)对芯杆I的夹持固定。 [0024] wherein I is the stem end of the rod portion 12 of the holding structure 121 is provided, as a symmetrical set of inwardly concave machining plane, to facilitate the installation tool (such as a riveter) of the core pin clamp I holding fixed.

[0025]本发明创造的简要工作过程为,将本发明创造的铆钉插入被连接基体的安装孔中,安装工具(如拉铆枪)夹持住芯杆I的夹持结构121,并对芯杆I进行拉拔,同时,安装工具的另一结构抵住铆接垫片3,并作用于钉套2的头部。 [0025] brief operation of the present invention is created for the present invention is to create a rivet into the mounting holes in the base are connected, installation tools (such as the Riveter) gripping the stem I holding structure 121, and the core lever I were drawing the same time, another configuration tool is mounted against the riveting gasket 3, and the role of the head of the nail sheath 2. 如此,芯杆I的铆接部13逐渐拉入钉套2,在芯杆I铆接部13进入钉套2的同时,由于芯杆I铆接部13的尾段部分131比钉套2内径大,所以芯杆I铆接部13在拉入时会变细,同时钉套2会膨胀,在安装孔外形成一个盲铆头。 So, I mandrel caulking portion 13 is gradually pulled into nail sleeve 2, in the stem portion 13 into the caulking I nail sleeve 2 at the same time, as part of the tail section 13 of the mandrel 131 I riveting portion is larger than the inner diameter of the screw sleeve 2, so stem I pulled in caulking portion 13 becomes thin, while nail sleeve 2 will expand to form a blind rivet in the mounting hole outside. 当芯杆I拉拔到位后,铆接砧片3的力会作用于芯杆I的铆接部13靠近断颈槽11的端部,使之变形,形成径向的凸起,并可卡在钉套2台阶23上,形成锁紧结构(图6)。 When I pull the mandrel in place, the caulking force will act on the anvil 3 is in the core sheet I bar caulking portion 13 close to the end portion 11 of the break-neck groove, and deforming, the formation of radial projections, and the staple cards 2 sets of 23 steps, forming a locking structure (Figure 6). 当完成锁紧后,芯杆I会被从断颈槽11处拉断,完成铆接(图5)。 Upon completion of the lock, I will stem is pulled off from the broken neck groove 11 to complete the riveting (Figure 5).

[0026]以上所述仅为本发明创造的较佳实施例而已,并不用以限制本发明创造,凡在本发明创造的精神和原则之内,所作的任何修改、等同替换、改进等,均应包含在本发明创造的保护范围之内。 [0026] The foregoing is only present inventions preferred embodiments but is not intended to limit the creation of the present invention, Any modification of the present invention within the spirit and principles of the creation, made, equivalent replacement, or improvement are It should be included within the scope of the present inventions.

Citas de patentes
Patente citada Fecha de presentación Fecha de publicación Solicitante Título
CN1320197A *8 Sep 199931 Oct 2001米拉戴尔有限公司Blind rivet and method of making the same
CN202646283U *12 Jun 20122 Ene 2013吴洪学Drum-shaped rivet
CN203285810U *22 Abr 201313 Nov 2013刘晓之Penetrating and cutting rivet
GB2120741A * Título no disponible
GB2124317B * Título no disponible
US4784551 *13 Nov 198615 Nov 1988Huck Manufacturing CompanyFastening system and method for flush and protruding head blind fasteners with common pin and particularly such fasteners constructed of exotic material
Clasificaciones
Clasificación internacionalF16B19/10
Eventos legales
FechaCódigoEventoDescripción
4 May 2016C06Publication
1 Jun 2016C10Entry into substantive examination