WO2021208187A1 - 一种单槽单面紧固件及其安装方法 - Google Patents

一种单槽单面紧固件及其安装方法 Download PDF

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Publication number
WO2021208187A1
WO2021208187A1 PCT/CN2020/092249 CN2020092249W WO2021208187A1 WO 2021208187 A1 WO2021208187 A1 WO 2021208187A1 CN 2020092249 W CN2020092249 W CN 2020092249W WO 2021208187 A1 WO2021208187 A1 WO 2021208187A1
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WIPO (PCT)
Prior art keywords
tail
rivet
groove
tooth
collar
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PCT/CN2020/092249
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English (en)
French (fr)
Inventor
王仕柏
刘宇
邓涛
贾云龙
赵祥云
李传奇
何旭
李伟
郭龙
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眉山中车紧固件科技有限公司
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Application filed by 眉山中车紧固件科技有限公司 filed Critical 眉山中车紧固件科技有限公司
Priority to US16/975,132 priority Critical patent/US11692576B2/en
Priority to EP20931284.2A priority patent/EP4056862B1/en
Priority to AU2020442694A priority patent/AU2020442694B2/en
Priority to BR112022011227A priority patent/BR112022011227A2/pt
Publication of WO2021208187A1 publication Critical patent/WO2021208187A1/zh

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B19/00—Bolts without screw-thread; Pins, including deformable elements; Rivets
    • F16B19/04—Rivets; Spigots or the like fastened by riveting
    • F16B19/08—Hollow rivets; Multi-part rivets
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B19/00—Bolts without screw-thread; Pins, including deformable elements; Rivets
    • F16B19/04—Rivets; Spigots or the like fastened by riveting
    • F16B19/08—Hollow rivets; Multi-part rivets
    • F16B19/10—Hollow rivets; Multi-part rivets fastened by expanding mechanically
    • F16B19/1027—Multi-part rivets
    • F16B19/1036—Blind rivets
    • F16B19/1045—Blind rivets fastened by a pull - mandrel or the like
    • F16B19/1054—Blind rivets fastened by a pull - mandrel or the like the pull-mandrel or the like being frangible
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B19/00—Bolts without screw-thread; Pins, including deformable elements; Rivets
    • F16B19/04—Rivets; Spigots or the like fastened by riveting
    • F16B19/08—Hollow rivets; Multi-part rivets
    • F16B19/10—Hollow rivets; Multi-part rivets fastened by expanding mechanically
    • F16B19/1027—Multi-part rivets
    • F16B19/1036—Blind rivets
    • F16B19/1045—Blind rivets fastened by a pull - mandrel or the like
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
    • B21J15/00—Riveting
    • B21J15/02—Riveting procedures
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
    • B21J15/00—Riveting
    • B21J15/02—Riveting procedures
    • B21J15/04—Riveting hollow rivets mechanically
    • B21J15/043—Riveting hollow rivets mechanically by pulling a mandrel
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
    • B21J15/00—Riveting
    • B21J15/10—Riveting machines
    • B21J15/30—Particular elements, e.g. supports; Suspension equipment specially adapted for portable riveters
    • B21J15/32—Devices for inserting or holding rivets in position with or without feeding arrangements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B19/00—Bolts without screw-thread; Pins, including deformable elements; Rivets
    • F16B19/04—Rivets; Spigots or the like fastened by riveting
    • F16B19/08—Hollow rivets; Multi-part rivets
    • F16B19/10—Hollow rivets; Multi-part rivets fastened by expanding mechanically
    • F16B19/1027—Multi-part rivets

Definitions

  • the invention belongs to the technical field of riveting, in particular to the design and manufacture of a single-slot single-sided pull rivet riveting fastener for blind hole connection, belonging to metal machining riveting (B21J) and fasteners (F16B) .
  • the prior art generally uses bolts, single-slot short-tail ring groove rivets and pull-off type single-sided ring groove rivets to fasten the clamped parts.
  • the invention discloses a single-slot single-sided fastener and an installation method thereof based on the shortcomings of the prior art.
  • the purpose of the present invention is to provide a single-slot single-sided fastening connection system with better performance and no need to be broken.
  • Single-slot single-sided fasteners including rivets and collars, are characterized in that: the rivets are composed of a rivet head, a polished rod, a locking groove, a tail slot, and a tail tooth in sequence, and the collar is composed of a sleeve and a riser;
  • the tail of the rivet has a single-slot short tail structure, the ratio of the length of the tail trough to the total length of the tail is 0.1-2, the angle A between the bottom bus bar of the trough of the tail and the axis of the rivet is -30° ⁇ 0°, the bottom of the trough of the tail
  • the axial ends are rounded transition structures, the ratio of the length of the straight part of the tail teeth to the total length of the tail teeth is 0.1 to 1, and the tail end of the tail teeth has a rounded transition structure.
  • the ratio of the length of the tail groove to the total length of the tail teeth is 0.5 to 1.5.
  • the included angle A between the bottom bus bar of the tail drawing groove and the axis of the rivet is -15° to 0°.
  • the arc of the rounded transition structure at the axial ends of the bottom of the tail pull groove is: (1/125) ⁇ (R1/D) ⁇ (1/4), (1/125) ⁇ (R2/D) ⁇ (1/4), where D is the minimum radial diameter of the tail groove, R1 is the transition fillet radius between the tail groove and the locking groove, and R2 is the transition fillet radius between the tail groove and the tail tooth.
  • the length of the straight part of the tail tooth is 0.2-0.8 of the total length of the tail tooth.
  • the arc of the transitional structure of the tail fillet is: (1/125) ⁇ (R3/D 1 ) ⁇ (1/2), where D 1 is the diameter of the tail, and R3 is the radius of the tail fillet .
  • the fastener structure researched and innovatively designed by the present invention improves the relationship between the length of the straight part of the tail tooth, the transition between the bevel and fillet designed on the tail tooth, increases the contact area between the tail tooth and the claw of the installation tool, and improves the force receiving Direction:
  • the rivet tail teeth of the fastener of the present invention can meet the needs of riveting load, prevent stress concentration in the installation process, the grasping connection is more stable and reliable, and can further protect the rivet and the riveting tool, and extend its service life.
  • the riveting tool When the clamped parts such as blind holes are fastened and connected, the riveting tool is more stable and reliable when grabbing the rivet due to the design of the rivet ring groove and the tail tooth structure, and can implement a lower riveting tension to meet the requirements of riveting. Requirements, the riveting tool can be miniaturized and lighter in weight, can effectively avoid the obvious deformation of the clamped parts and rivets during the installation process, protect the clamped parts and rivets, and extend the life of the installation tools while meeting the requirements of use.
  • the combination is more stable, and the original structure performance of the connected clamping parts is further protected, and there is no installation noise; during the installation process, the rivet tail can be prevented from flying out and causing damage to the installer when the rivet is broken, reducing potential safety hazards; Corrosion treatment; in the production process, it can also save raw materials and shorten the production cycle.
  • Figure 1 is a schematic diagram of the fastener rivet structure of the present invention
  • Figure 2 is a schematic diagram of the fastener ring structure of the present invention.
  • Figure 3 is a partial enlarged schematic view of the rivet structure of the present invention.
  • Fig. 4 is a schematic diagram of the preparation state of the fastening connection of the present invention.
  • Figure 5 is a schematic view of the riveting preparation state of the fastener and the riveting tool of the present invention.
  • Figure 6 is a schematic diagram of the fastening connection riveting process of the present invention.
  • Figure 7 is a second schematic diagram of the fastening connection riveting state of the present invention.
  • 1.1 is the head
  • 1.2 is the polished rod
  • 1.3 is the locking groove
  • 1.4 is the tail groove
  • 1.5 is the tail
  • 2.1 is the sleeve
  • 2.2 is the head
  • L 1 is the length of the tail groove
  • L 2 is the tail
  • L 3 is the total length of the tail
  • D is the smallest diameter of the tail trough
  • D 1 is the diameter of the tail
  • R1 is the radius of the transition fillet between the tail trough and the locking groove
  • R2 is the tail trough
  • R3 is the fillet radius of the tail tooth tail
  • A is the angle between the bottom generatrix of the tail groove and the rivet axis.
  • Single-slot single-sided fasteners including rivets and collars.
  • the rivets are composed of rivet head 1.1, polished rod 1.2, locking groove 1.3, tail drawing groove 1.4, tail tooth 1.5, and the collar is composed of sleeve 2.1 and riser 2.2. ;
  • the tail of the rivet has a single-slot short tail structure, the ratio of the length L 1 of the tail to the total length L 3 of the tail is 0.1 ⁇ 1.5, the angle A between the bottom bus bar of the 1.4 groove and the axis of the rivet is -30° ⁇ 0°
  • the axial ends of the groove bottom of the groove 1.4 are rounded transition structures, the ratio of the straight part length L 2 of the tail tooth to the total length L 3 of the tail tooth is 0.1 to 1, and the tail part of the tail tooth has a rounded transition structure.
  • the ratio of the tail length L 1 to the total length of the tail tooth L 3 is 0.5-1.
  • the angle A between the bottom bus bar of the tail groove and the axis of the rivet is -15° ⁇ 0°.
  • the diameter of the connecting end of the tail groove 1.4 and the tail tooth 1.5 is smaller than the diameter of the connecting end of the locking groove 1.3.
  • the ratio of the straight part length L 2 of the tail tooth to the total length L 3 of the tail tooth is 0.2-0.8.
  • the arc of the rounded transition structure at the axial ends of the bottom of the tail slot is: (1/125) ⁇ (R1/D) ⁇ (1/4), (1/125) ⁇ (R2/D) ⁇ (1 /4), where D is the smallest radial diameter of the tail groove, R1 is the transition fillet radius between the tail groove and the locking groove, and R2 is the transition fillet radius between the tail groove and the tail tooth.
  • the arc of the transitional structure of the tail fillet is: (1/125) ⁇ (R3/D 1 ) ⁇ (1/2), where D 1 is the diameter of the tail, and R3 is the fillet radius of the tail.
  • the riveting process of the fastener of the present invention is shown in Figs. 4 to 7.
  • the specific installation process is as follows:

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Insertion Pins And Rivets (AREA)
  • Connection Of Plates (AREA)
  • Joining Of Building Structures In Genera (AREA)

Abstract

一种单槽单面紧固件及其安装方法，单槽单面紧固件包括铆钉和套环，铆钉由铆钉头部（1.1）、光杆（1.2）、锁紧槽（1.3）、尾部拉槽（1.4）、尾牙（1.5）顺序构成，套环由套管（2.1）和冒头（2.2）构成；铆钉尾部为单槽短尾结构，尾部拉槽长度与尾牙总长比为0.1～1.5，尾部拉槽（1.4）槽底母线与铆钉轴线夹角A为-30°～0°，尾部拉槽（1.4）槽底轴向两端为圆角过渡结构，尾牙平直部分长度与尾牙总长的比为0.1～1，尾牙（1.5）尾部为圆角过渡结构。

Description

一种单槽单面紧固件及其安装方法 技术领域
本发明属于铆接技术领域，尤其属于一种用于盲孔连接的单槽单面拉铆钉铆接紧固件的设计与制造，属金属机械加工的铆接类(B21J)和紧固件类(F16B)。
背景技术
双面铆接的拉铆钉安装时，将铆钉从被连件前侧插入安装孔后，将套环从后侧套在铆钉外周，套环头部置于前方，套环圆筒置于后方；布置在两被连件后侧的铆接器夹紧铆钉尾部拉槽段进行拉铆。铆接完成后，套环圆筒变形后径向紧压在铆钉的环槽段外周，套环头部轴向紧压在后侧被连件表面，由此将两被连件紧固。但是，双面铆接的前提是需要铆接的物体两侧有足够的空间才能实现。实际工作中，特别是在组装过程中往往是只有物体一侧有足够空间，另一侧空间则十分有限，甚至连螺栓都放不进去，例如盲孔的紧固件联接。因此，常常还会应用到单面变形连接拉铆钉。
常规单面变形连接拉铆钉在使用前完成铆钉杆和套环组装，组装后安装时仅需从连接件一侧插入安装孔，然后通过铆接器中的卡爪咬住单面连接产品尾部后，带动铆钉向外运动，挤压套环，套环管部起鼓变形，形成环形凸起盲铆头，进一步套筒挤压套环发生塑性变形，夹紧被铆接件并拉断外铆钉杆，完成铆接。
针对单面铆接，因对盲孔或不易进入结构进行单面铆接，除对套环的 性能要求不同，还对铆钉结构性能提出了更高的要求。
现有技术一般是使用螺栓、单槽短尾环槽铆钉和拉断型的单面环槽铆钉对被夹紧件进行紧固联接。
采用单槽短尾环槽铆钉进行紧固连接时，需要在被夹紧件两边进行预安装，不适用于盲孔操作，有时还需在被夹紧件上开设工艺孔，对被夹紧件有所损伤；采用拉断型单面环槽铆钉对盲孔类被夹紧件进行紧固联接时，在对铆钉拉断的过程中，铆钉会发生较大的塑性变形，可能会对被夹紧件有损伤，甚至使本已变形完全的铆接接头发生松动。
发明内容
本发明根据现有技术的不足公开了一种单槽单面紧固件及其安装方法。本发明的目的是提供一种性能更好的、无需拉断的单槽单面紧固连接系统。
本发明通过以下技术方案实现：
单槽单面紧固件，包括铆钉和套环，其特征在于：所述铆钉由铆钉头部、光杆、锁紧槽、尾部拉槽、尾牙顺序构成，套环由套管和冒头构成；
所述铆钉尾部为单槽短尾结构，尾部拉槽长度与尾牙总长比为0.1～2，尾部拉槽槽底母线与铆钉轴线夹角A为-30°～0°，尾部拉槽槽底轴向两端为圆角过渡结构，尾牙平直部分长度与尾牙总长的比为0.1～1，尾牙尾部为圆角过渡结构。
进一步所述尾部拉槽长度与尾牙总长比为0.5～1.5。
进一步所述尾部拉槽槽底母线与铆钉轴线夹角A为-15°～0°。
进一步所述尾部拉槽槽底轴向两端的圆角过渡结构的圆弧是：(1/125)≤(R1/D)≤(1/4)，(1/125)≤(R2/D)≤(1/4)，其中，D是尾部拉槽径向最小直径，R1是尾部拉槽与锁紧槽过渡圆角半径，R2是尾部拉槽与尾牙过渡圆角半径。
进一步所述尾牙平直部分长度是尾牙总长的0.2～0.8。
进一步所述尾牙尾部圆角过渡结构圆弧是：(1/125)≤(R3/D 1)≤(1/2)，其中，D 1是尾牙直径，R3是尾牙尾部圆角半径。
与现有技术对比：
本发明研究并创新设计的紧固件结构，改进尾牙平直部分的长度关系，在尾牙上设计的斜角与圆角过渡，增加尾牙与安装工具卡爪的接触面积，改进受力方向；本发明紧固件的铆钉尾牙能够满足铆接载荷的需要，防止安装过程应力集中现象发生，抓取连接更稳定可靠，能够进一步保护铆钉与铆接工具，延长其使用寿命。
本发明在对盲孔等被夹紧件进行紧固连接时，因铆钉环槽和尾牙结构设计，铆接工具在抓取铆钉铆接时更稳定可靠，可以实施较低的铆接拉力即可满足铆接要求，可使铆接工具小型化、轻量化，能够在安装过程中有效避免被夹紧件和铆钉发生的明显变形，保护了被夹紧件和铆钉，在满足使用要求同时延长安装工具寿命，铆接结合更稳定，进一步保护被联接夹紧件的原结构性能，并且无安装噪声；安装过程中能够避免铆钉尾部拉断时飞出对安装人员造成伤害，减少安全隐患；安装完成后无需再次进行防锈蚀处理；在生产过程中，也可以节省原材料，缩短生产周期。
附图说明
图1是本发明紧固件铆钉结构示意图；
图2是本发明紧固件套环结构示意图；
图3是本发明铆钉结构局部放大示意图；
图4是本发明紧固连接准备状态示意图；
图5是本发明紧固件与铆接工具铆接准备状态示意图；
图6是本发明紧固连接铆接过程一示意图；
图7是本发明紧固连接铆接状态二示意图。
图中，1.1是头部，1.2是光杆，1.3是锁紧槽，1.4是尾部拉槽，1.5是尾牙，2.1是套管，2.2是冒头，L 1是尾部拉槽长度，L 2是尾牙平直部长度，L 3是尾牙总长，D是尾部拉槽经向最小直径，D 1是尾牙直径，R1是尾部拉槽与锁紧槽过渡圆角半径，R2是尾部拉槽与尾牙过渡圆角半径，R3是尾牙尾部圆角半径，A是尾部拉槽槽底母线与铆钉轴线夹角。
具体实施方式
下面结合具体实施方式对本发明进一步说明，具体实施方式是对本发明原理的进一步说明，不以任何方式限制本发明，与本发明相同或类似技术均没有超出本发明保护的范围。
结合附图。
单槽单面紧固件，包括铆钉和套环，铆钉由铆钉头部1.1、光杆1.2、锁紧槽1.3、尾部拉槽1.4、尾牙1.5顺序构成，套环由套管2.1和冒头2.2构成；
铆钉尾部为单槽短尾结构，尾部拉槽长度L 1与尾牙总长L 3比为0.1～1.5，尾部拉槽1.4槽底母线与铆钉轴线夹角A为-30°～0°，尾部拉槽1.4槽底轴向两端为圆角过渡结构，尾牙平直部长度L 2与尾牙总长L 3的比为0.1～1，尾牙尾部为圆角过渡结构。
尾部拉槽长度L 1与尾牙总长L 3比为0.5～1。
尾部拉槽槽底母线与铆钉轴线夹角A为-15°～0°。在尾部拉槽槽底母线与铆钉轴线夹角A在该范围内时，尾部拉槽1.4与尾牙1.5联接端的直径小于与锁紧槽1.3联接端直径。
尾牙平直部分长度L 2与尾牙总长L 3比的0.2～0.8。
尾部拉槽槽底轴向两端的圆角过渡结构的圆弧是：(1/125)≤(R1/D)≤(1/4)，(1/125)≤(R2/D)≤(1/4)，其中，D是尾部拉槽径向最小直径，R1是尾部拉槽与锁紧槽过渡圆角半径，R2是尾部拉槽与尾牙过渡圆角半径。
尾牙尾部圆角过渡结构圆弧是：(1/125)≤(R3/D 1)≤(1/2)，其中，D 1是尾牙直径，R3是尾牙尾部圆角半径。
本发明紧固件铆接过程如图4至图7所示。具体安装过程如下：
(1)如图4所示，将铆钉及套环按照如图所示的方式穿过被夹紧件，准备铆接；
(2)如图5所示，使用专用铆接工具，将铆钉尾牙1.5伸入铆接工具内，使尾部拉槽1.4和尾牙1.5与铆接工具中的卡爪啮合；
(3)如图6所示，启动铆接工具开关，使铆接工具内的卡爪拖拽尾牙 1.5与铁砧发生相对运动，对铆钉施加轴向力，同时铁砧轻微挤压套环冒头2.2；
(4)如图7所示，在轴向力的作用下，套环套管2.1开始在被夹紧件外侧变形，铁砧继续挤压套环冒头2.2部分，当套环在被夹紧件两侧都变形完全后，铁砧开始向相反方向运动，二者完全脱离后，铆接过程完成。

Claims (7)

  1. 一种单槽单面紧固件，包括铆钉和套环，其特征在于：所述铆钉由铆钉头部、光杆、锁紧槽、尾部拉槽、尾牙顺序构成，套环由套管和冒头构成；
    所述铆钉尾部为单槽短尾结构，尾部拉槽长度与尾牙总长比为0.1～2，尾部拉槽槽底母线与铆钉轴线夹角A为-30°～0°，尾部拉槽槽底轴向两端为圆角过渡结构，尾牙平直部分长度与尾牙总长的比为0.1～1，尾牙尾部为圆角过渡结构。
  2. 根据权利要求1所述的单槽单面紧固件，其特征在于：所述尾部拉槽长度与尾牙总长比为0.5～1.5。
  3. 根据权利要求2所述的单槽单面紧固件，其特征在于：所述尾部拉槽槽底母线与铆钉轴线夹角A为-15°～0°。
  4. 根据权利要求2所述的单槽单面紧固件，其特征在于：所述尾牙平直部分长度是尾牙总长的0.2～0.8。
  5. 根据权利要求2所述的单槽单面紧固件，其特征在于：所述尾部拉槽槽底轴向两端的圆角过渡结构的圆弧是：(1/125)≤(R1/D)≤(1/4)，(1/125)≤(R2/D)≤(1/4)，其中，D是环槽径向最小直径，R1是尾部拉槽与锁紧槽过渡圆角半径，R2是尾部拉槽与尾牙过渡圆角半径。
  6. 根据权利要求2所述的单槽单面紧固件，其特征在于：所述尾牙尾部圆角过渡结构圆弧是：(1/125)≤(R3/D 1)≤(1/2)，其中，D 1是尾牙直径，R3是尾牙尾部圆角半径。
  7. 一种单槽单面紧固件安装方法，其特征在于：所述紧固件是权利要求1至6任一件所述的单槽单面紧固件，包括以下步骤：
    (1)将铆钉及套环按照如图所示的方式穿过被夹紧件，准备铆接；
    (2)使用铆接工具，将铆钉尾牙伸入铆接工具内，使尾部拉槽和尾牙与铆接工具中的卡爪啮合；
    (3)启动铆接工具开关，使铆接工具内的卡爪拖拽尾牙与铁砧发生相对运动，对铆钉施加轴向力，同时铁砧轻微挤压套环冒头；
    (4)在轴向力的作用下，套环套管开始在被夹紧件外侧变形，铁砧继续挤压套环冒头部分，当套环在被夹紧件两侧都变形完全后，铁砧开始向相反方向运动，二者完全脱离后，铆接过程完成。
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