An apparatus and method for automatic assembly of cotter pins

Abstract

This invention relates to the field of cotter pin assembly technology, specifically to an automatic cotter pin assembly device and method. The device includes a frame with top frames fixedly connected to both sides of its top. A first storage seat is located inside the left top frame, and a second storage seat is located inside the right top frame. Both the first and second storage seats have top-pressing push rods at their tops. A lower pressure seat is movably connected to the bottom of the first storage seat via the top-pressing push rods. This invention, through its frame, top frame, first storage seat, second storage seat, top-pressing push rod, lower pressure seat, feeding seat, and base frame, enables more precise and stable automatic cotter pin assembly. In actual use, the operator first inserts the rod to be assembled into the device frame through the limiting frame, and then one end of the rod rests on the support frame at the bottom of the second storage seat.

Description

Technical Field

[0001] This invention relates to the field of cotter pin assembly technology, specifically to an automatic cotter pin assembly device and method. Background Technology

[0002] A cotter pin is a mechanical part. To prevent damage to the hole wall, grease can be added to the pin hole for lubrication. This part requires high-quality steel and a rigid material with good elasticity. It is used to prevent loosening of threaded connections. After the nut is tightened, the cotter pin is inserted into the nut groove and the bolt end hole, and the cotter pin end is pried open to prevent relative rotation between the nut and bolt. A cotter pin is a type of metal hardware, commonly known as a spring pin. The cotter pin used should not have any broken, cracked, or rusted defects. The nominal size of the cotter pin should be equal to the diameter of the cotter pin hole. It should be split from the root to prevent the cotter pin from shifting. The opening of the cotter pin must be symmetrical, and both ends must be coiled into a circle after splitting. On a pin or shaft, ensure the arc surface of the split part is parallel to the arc surface of the pin or shaft, and as close as possible to the pin or shaft. Never use wire or other materials to replace the cotter pin. To install a cotter pin, first insert it into the cylindrical pin using your hand or pliers. Do not use a hammer to drive the cotter pin in. Use a screwdriver to pry the cotter pin open. If it comes into contact with the workpiece, you can roll the cotter pin up. When opening the cotter pin, ensure the split parts are straight and symmetrical. Uneven lengths, R-shapes, and gaps are not allowed. When fixing a slotted nut, tighten it a few turns appropriately. However, if there is obstruction or insufficient insulation distance, roll the cotter pin up.

[0003] For example, patent document CN 216299181 U discloses an automatic cotter pin assembly machine, which includes an assembly base, a pressing mechanism, a lateral positioning mechanism, and an open-end bending mechanism. The assembly base has a positioning hole, and one end of the axle of the product to be assembled is placed in the positioning hole. The pressing mechanism includes a pressing head and a pressing drive device, which presses the other end of the axle of the product to be assembled. The lateral positioning mechanism includes a lateral positioning drive device and a positioning block, which drives the positioning block to position the closed end of the cotter pin to be assembled. The open-end bending mechanism includes two bending heads with an included angle A and a bending drive module, which drives the two bending heads to move synchronously to split the open end of the cotter pin to be assembled and bend it outwards. This automatic cotter pin assembly machine is not only simple in structure and ingeniously designed, but also highly automated, saving manpower, reducing processing costs, and ensuring processing quality.

[0004] However, in actual use, this structure often requires a single top-pressing structure to directly assemble and install cotter pins in one go. The forces exerted on the cotter pins during insertion and deformation fixing are often different. In this case, the force applied by a single top-pressing structure cannot be quickly and stably adjusted. Furthermore, the bottom of the cotter pin cannot meet the different limiting protection requirements during insertion and deformation fixing, failing to provide a more efficient and stable automatic assembly operation. Additionally, the equipment lacks a rapid positioning structure during cotter pin assembly, easily leading to poor assembly quality due to cotter pin misalignment. The overall assembly table also lacks adequate shielding protection during assembly, and cannot provide better protection for the surrounding environment when a cotter pin breaks. Therefore, it is urgent to design an automatic cotter pin assembly device and method to solve these problems. Summary of the Invention

[0005] The purpose of this invention is to provide an automatic cotter pin assembly device and method to solve the problems mentioned in the background art. In practical use, existing structures often require a single pressing structure to directly assemble and install the cotter pin in one go. However, the forces exerted during insertion and deformation fixing of the cotter pin are often different. In this case, the force applied by a single pressing structure cannot be quickly and stably adjusted, and the bottom of the cotter pin cannot meet the different limiting protection requirements during insertion and deformation fixing. This makes it impossible to provide a more efficient and stable automatic assembly operation for the cotter pin. Furthermore, the equipment lacks a rapid positioning structure during cotter pin assembly, which easily leads to poor assembly quality due to cotter pin misalignment. The overall assembly table also cannot provide adequate protection during the assembly process, and it cannot provide better protection for the surrounding environment when the cotter pin breaks, thus failing to meet daily usage needs.

[0006] To achieve the above objectives, the present invention provides the following technical solution: an automatic cotter pin assembly device and method, comprising a device frame, top frames fixedly connected to the top two sides of the device frame, a first storage seat disposed inside the top frame on the left side, and a second storage seat disposed inside the top frame on the right side, both the first and second storage seats being provided with a top pressing push rod, a lower pressing seat being movably connected to the bottom of the first storage seat via the top pressing push rod, and a feeding seat being movably connected to the bottom of the second storage seat via the top pressing push rod, limit frames being provided at both ends of the device frame, a central frame being provided inside the limit frames, a shielding cloth being provided on the front of the central frame, and a dust collection box being provided inside the top frame;

[0007] The equipment frame has a bottom plate and a base frame. The bottom of both sides of the equipment frame is fixedly connected to the bottom of the equipment frame. A telescopic frame is fixedly connected to the surface of the bottom plate on the left side. Electric push rods are provided at both ends of the front of the telescopic frame. The telescopic frame has a snap-fit ​​groove inside. Extension rods are provided at both ends inside the snap-fit ​​groove. A first docking seat is provided at one end of the base frame. A second docking seat is provided at the other end of the base frame. Three sets of fine-tuning springs are evenly arranged inside the base frame through the first docking seat and the second docking seat.

[0008] Preferably, the first docking seat has an insertion tube at its internal center, and protective springs are evenly distributed on the side of the insertion tube. The second docking seat has an insertion groove on its surface, and deformation guide grooves are provided on both sides of the insertion groove.

[0009] Preferably, a control claw unit is provided at one end of the extension rod, and gripping claws are provided at both the upper and lower ends of the control claw unit, with a movable shaft provided between the gripping claws.

[0010] Preferably, a sealing ring is provided on the front edge of the dust collection box, a partition plate is fixedly connected to the center of the sealing ring, and a dust collection fan is provided at both ends of the front of the dust collection box.

[0011] Preferably, the inner wall of the central frame is provided with a protective rubber ring, and elastic straps are provided at the four corners between the limiting frame and the central frame.

[0012] Preferably, the bottom wall of the equipment frame is fixedly connected to both ends of a reinforcing top seat, and a support frame is fixedly connected to one end of each reinforcing top seat.

[0013] Preferably, the surface of the lifting frame is provided with a lifting groove, and the two ends of the lifting frame and the inner bottom wall of the lifting groove are provided with limiting grooves. A conveying arc plate is provided between the two sets of lifting frames.

[0014] Preferably, a pull-out frame is fixedly connected to the top of the device frame, a lens is provided on the surface of the pull-out frame, a pull-out folding plate is movably connected inside the pull-out frame, and a first handle is fixedly connected to the surface of the pull-out folding plate.

[0015] Preferably, a cover plate is movably connected to both sides of the front of the device frame, and a second handle is fixedly connected to both ends of the cover plate.

[0016] Compared with the prior art, the beneficial effects of the present invention are:

[0017] This automatic cotter pin assembly equipment and method, through the configuration of a frame, top frame, first and second storage seats, top push rod, bottom pressure seat, unloading seat, base frame, first and second docking seats, fine-tuning spring, insertion tube, protective spring, insertion groove, deformation guide groove, reinforcing top seat, lifting frame, lifting groove, limiting through groove, and conveying arc plate, enables the equipment to perform more precise and stable automatic cotter pin assembly operations. In actual use, the operator first places the rod to be assembled into the cotter pin... The material is inserted into the equipment frame from the limiting frame, and then one end of the rod rests on the support frame at the bottom of the second storage seat. At this time, the top pressing push rod of the second storage seat is activated, which drives the entire unloading seat to send the cotter pin from the unloading seat into the assembly hole of the rod. After automatic assembly is completed, the rod carrying the cotter pin moves to the bottom of the first storage seat. Then, the top pressing push rod of the first storage seat is activated, which drives the lower pressing seat to deform and compact the cotter pin at the assembly hole. Both sets of pressing push rods can... It has its own optimal working force to avoid uneven force application. Both the second and first storage seats have the same reinforced top seat and support frame structure at the bottom. The support groove on the surface of the support frame can provide a limit for the cotter pin rod, and the corresponding limiting through groove in the support groove can limit the cotter pin, allowing it to dock with the internal structure of the base frame and facilitating stable movement. At the same time, the cotter pin can dock with the first and second docking seats respectively. When docking with the first docking seat, the internal insertion tube directly limits the cotter pin, and with the assistance of the protective spring, the insertion of the cotter pin is more stable and sealed, avoiding deformation problems. When docking with the second docking seat, the cotter pin can be guided and deformed along the deformation guide grooves on both sides of the insertion groove. The first and second docking seats can also be stably buffered and protected by fine-tuning springs inside the base frame, which greatly improves the overall assembly stability of the equipment and reflects the practicality of the equipment design.

[0018] This automatic cotter pin assembly equipment and method, through the setting of an equipment frame, a limiting frame, a central frame, a shielding cloth, a dust collection box, a bottom plate, a telescopic frame, an electric push rod, a locking groove, an extension rod, a control claw unit, a gripper, a movable shaft, a sealing ring, a partition plate, a dust extraction fan, a protective rubber ring, an elastic belt, a conveyor arc plate, a pull frame, a lens, a pull-out folding plate, a first handle, a cover plate, and a second handle, further improves the overall usability of the equipment. During daily use, when the operator inserts the cotter pin assembly rod into the limiting frame, the rod can enter the interior of the central frame, where it is damped and limited by the protective rubber ring. The shielding cloth on the front of the limiting frame provides protection at the limiting frame, and the elastic belts at the four corners between the limiting frame and the central frame provide stable and gradual adjustment, ensuring the stability of the rod at all times. Furthermore, during cotter pin assembly, the electric push rod can be activated, which drives the control claw unit at one end via the extension rod at one end of the telescopic frame. The assembly and gripping claws are attached to the side of the rod processing area. Activating the gripping claw assembly causes the gripping claws at both ends to rotate around the central movable axis, clamping the assembled rod. This ensures the rod is more securely fixed at the bottom support frame of the second and first storage seats. The cotter pins and the rod's movement between the two support frames are also initially limited by the conveyor arc plate, greatly improving the stability of the equipment for loading and unloading rods. Additionally, the pull-out folding plate and first handle inside the pull-out frame can be pulled out for sealing and protection from the top of the equipment frame. The cover plate and second handle are connected at both ends of the equipment frame for front and rear protection. Simultaneously, the dust collection fan inside the dust collection box, along with the sealing ring and partition plate, can be activated at the top of the equipment frame to suck out processing debris, significantly improving the overall processing safety and demonstrating the comprehensiveness of the equipment design. Attached Figure Description

[0019] Figure 1 This is a three-dimensional schematic diagram of the structure of the present invention;

[0020] Figure 2 This is an overall schematic diagram of the device frame structure of the present invention;

[0021] Figure 3 This is an overall schematic diagram of the bottom plate structure of the present invention;

[0022] Figure 4 This is an overall schematic diagram of the base frame structure of the present invention;

[0023] Figure 5 This is a schematic diagram of the overall structure of the dust collection box of the present invention;

[0024] Figure 6 This is an overall schematic diagram of the limiting frame structure of the present invention;

[0025] Figure 7 For the present invention Figure 1 Enlarged schematic diagram of the structure at point A;

[0026] Figure 8 For the present invention Figure 2 Enlarged schematic diagram of the structure at point B.

[0027] In the diagram: 1. Equipment frame; 2. Top frame; 3. First storage seat; 4. Second storage seat; 5. Top pressure push rod; 6. Lower pressure seat; 7. Unloading seat; 8. Limiting frame; 9. Center frame; 10. Shelter cloth; 11. Dust collection box; 12. Bottom plate; 13. Base frame; 14. Telescopic frame; 15. Electric push rod; 16. Snap-fit ​​groove; 17. Extension rod; 18. First docking seat; 19. Second docking seat; 20. Fine-tuning spring; 21. Insertion tube; 22. Protective spring; 23. Insertion slot; 24. Deformation guide slot; 25. Claw control unit; 26. Gripping claw; 27. Movable shaft; 28. Sealing ring; 29. ​​Divider plate; 30. Dust extraction fan; 31. Protective rubber ring; 32. Elastic pull strap; 33. Reinforced top seat; 34. Lifting frame; 35. Lifting groove; 36. Limiting through groove; 37. Conveying arc plate; 38. Pull-out frame; 39. Lens; 40. Pull-out folding plate; 41. First handle; 42. Cover plate; 43. Second handle. Detailed Implementation

[0028] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0029] Please see Figure 1-8 One embodiment provided by the present invention:

[0030] An automatic assembly device and method for cotter pins includes a device frame 1. Top frames 2 are fixedly connected to both sides of the top of the device frame 1. A first storage seat 3 is disposed inside the left top frame 2, and a second storage seat 4 is disposed inside the right top frame 2. A pressing push rod 5 is disposed at the top of both the first and second storage seats 3. A lower pressing seat 6 is movably connected to the bottom of the first storage seat 3 via the pressing push rod 5, and a feeding seat 7 is movably connected to the bottom of the second storage seat 4 via the pressing push rod 5. Limit frames 8 are disposed at both ends of the device frame 1, and a center frame is disposed inside the limit frames 8. 9. A shielding cloth 10 is provided on the front of the central frame 9. A dust collection box 11 is provided inside the top frame 2. A sealing ring 28 is provided on the front edge of the dust collection box 11. A partition plate 29 is fixedly connected to the center of the sealing ring 28. A dust collection fan 30 is provided at both ends of the front of the dust collection box 11. A protective rubber ring 31 is provided on the inner wall of the central frame 9. Elastic straps 32 are provided at the four corners between the limiting frame 8 and the central frame 9. A reinforcing top seat 33 is fixedly connected to both ends of the inner bottom wall of the equipment frame 1. A lifting frame 34 is fixedly connected to one end of each reinforcing top seat 33. The surface of the lifting frame 34 is opened. The device has a lifting groove 35, and limit slots 36 are provided at both ends of the lifting frame 34 and on the inner bottom wall of the lifting groove 35. A conveying arc plate 37 is provided between the two sets of lifting frames 34. A pull-out frame 38 is fixedly connected to the top of the device frame 1. A lens 39 is provided on the surface of the pull-out frame 38. A pull-out folding plate 40 is movably connected inside the pull-out frame 38. A first handle 41 is fixedly connected to the surface of the pull-out folding plate 40. A cover plate 42 is movably connected to both sides of the front of the device frame 1. A second handle 43 is fixedly connected to both ends of the cover plate 42. The first storage seat 3 is activated by pressing the top push rod. 5. The lower pressure seat 6 is driven to deform and compact the cotter pin at the assembly hole. Both sets of top pressure push rods 5 can have their own optimal working force to avoid uneven force. The bottom of the second storage seat 4 and the first storage seat 3 have the same reinforced top seat 33 and support frame 34 structure. The support groove 35 on the surface of the support frame 34 can provide a limit for the cotter pin rod. The corresponding limiting through groove 36 in the support groove 35 limits the cotter pin, so that it can dock with the internal structure of the base frame 13 and facilitate its stable movement.

[0031] The bottom plate 12 and the base frame 13 are fixedly connected to the bottom of both sides of the equipment frame 1. The bottom of the equipment frame 1 is fixedly connected to the base frame 13. The surface of the left bottom plate 12 is fixedly connected to the telescopic frame 14. The front ends of the telescopic frame 14 are provided with electric push rods 15. The telescopic frame 14 has a snap-fit ​​groove 16 inside. The two ends of the snap-fit ​​groove 16 are provided with extension rods 17. One end of the base frame 13 is provided with a first docking seat 18. The other end of the base frame 13 is provided with a second docking seat 19. Three sets of fine adjustment springs 20 are evenly arranged inside the base frame 13 through the first docking seat 18 and the second docking seat 19. The center of the first docking seat 18 is provided with an insertion tube 21. The side of the insertion tube 21 is evenly provided with protective springs 22. The surface of the second docking seat 19 is provided with an insertion groove 23. Deformation guide grooves 24 are provided on both sides of the extension rod 17. A control claw unit 25 is provided at one end of the extension rod 17. The upper and lower ends of the control claw unit 25 are provided with gripping claws 26. A movable shaft 27 is provided between the gripping claws 26. When the electric push rod 15 is started, the extension rod 17 at one end of the telescopic frame 14 drives the control claw unit 25 and the gripping claws 26 at one end to abut against the side of the rod processing area. The control claw unit 25 is started so that the gripping claws 26 at the upper and lower ends rotate around the central movable shaft 27 to clamp the assembled rod. This ensures that the rod is more firmly fixed at the bottom support frame 34 of the second storage seat 4 and the first storage seat 3. When the cotter pin and the rod move between the two sets of support frames 34, they can also be initially limited by the conveying arc plate 37, which greatly improves the stability of the equipment for loading and unloading the rod.

[0032] Working Principle: During use, the operator first inserts the rod to be fitted with a cotter pin into the equipment frame 1 through the limiting frame 8. Then, one end of the rod rests on the support frame 34 at the bottom of the second storage seat 4. At this time, the top pressing push rod 5 of the second storage seat 4 is activated, driving the unloading seat 7 to feed the cotter pin from the unloading seat 7 into the assembly hole of the rod. After automatic assembly is completed, the rod carrying the cotter pin moves towards the bottom of the first storage seat 3. Then, the top pressing push rod 5 of the first storage seat 3 is activated, driving the lower pressing seat 6 to deform and compact the cotter pin at the assembly hole. Both sets of pressing push rods 5 can have their optimal working force, avoiding uneven force application. Furthermore, both the bottoms of the second storage seat 4 and the first storage seat 3... Having the same reinforced top seat 33 and support frame 34 structure, the support groove 35 on the surface of the support frame 34 can provide a limit for the cotter pin rod, and the corresponding limiting through groove 36 in the support groove 35 limits the cotter pin, allowing it to dock with the internal structure of the base frame 13 and facilitating stable movement. During assembly, the cotter pin can dock with the first docking seat 18 and the second docking seat 19 respectively. When docking with the first docking seat 18, the internal insertion tube 21 directly limits the cotter pin, and with the assistance of the protective spring 22, the insertion of the cotter pin is more stable and sealed, preventing deformation. Then, when docking with the second docking seat 19, the cotter pin can follow the deformation guide grooves 24 on both sides of the insertion groove 23. During the guiding deformation operation, the first docking seat 18 and the second docking seat 19, located inside the base frame 13, can also provide stable buffering and protection through the fine-tuning spring 20, greatly improving the overall assembly stability of the equipment. In daily use, when the operator inserts the cotter pin automatic assembly rod into the limiting frame 8, the rod can enter the interior of the center frame 9 and be damped and limited by the protective rubber ring 31. The shielding cloth 10 on the front of the limiting frame 8 can provide shielding and protection at the limiting frame 8, and the elastic straps 32 at the four corners between the limiting frame 8 and the center frame 9 can provide stable and gentle adjustment, ensuring the stability of the rod at all times. Furthermore, during cotter pin assembly, the electric push rod 15 can be activated, which drives the extension rod 17 at one end of the telescopic frame 14. One end of the control claw unit 25 and the gripping claw 26 are attached to the side of the rod processing area. Starting the control claw unit 25 causes the gripping claws 26 at both ends to rotate around the central movable shaft 27, clamping the assembled rod. This ensures the rod is more securely fixed at the bottom support frame 34 of the second storage seat 4 and the first storage seat 3. The cotter pin and the rod can also be initially limited by the conveying arc plate 37 when moving between the two support frames 34, greatly improving the stability of the equipment for loading and unloading rods. In daily use, the pull-out folding plate 40 and the first handle 41 inside the pull-out frame 38 can be pulled out for sealing and protection from the top of the equipment frame 1. The cover plate 42 and the second handle 43 are connected at both ends of the equipment frame 1.The device frame 1 is shielded and protected at the front and rear. Simultaneously, the dust collection fan 30 inside the dust collection box 11 can be activated routinely. Together with the sealing ring 28 and the partition plate 29, it sucks out processing debris from the top of the device frame 1, greatly improving the overall safety of the processing equipment. This is the complete working principle of the invention.

[0033] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. An apparatus for automatic assembly of cotter pins, comprising an apparatus frame (1), characterized in that: Top frames (2) are fixedly connected to the top two sides of the equipment frame (1). A first storage seat (3) is provided inside the top frame (2) on the left side, and a second storage seat (4) is provided inside the top frame (2) on the right side. A top pressing rod (5) is provided on the top of both the first storage seat (3) and the second storage seat (4). A lower pressing seat (6) is movably connected to the bottom of the first storage seat (3) through the top pressing rod (5). A feeding seat (7) is movably connected to the bottom of the second storage seat (4) through the top pressing rod (5). Limit frames (8) are provided at both ends of the equipment frame (1). A central frame (9) is provided inside the limit frame (8). A shielding cloth (10) is provided on the front of the central frame (9). A dust collection box (11) is provided inside the top frame (2). Bottom plate (12) and base frame (13) are fixedly connected to the bottom of both sides of the equipment frame (1). The bottom of the equipment frame (1) is fixedly connected to the base frame (13). The surface of the bottom plate (12) on the left side is fixedly connected to the telescopic frame (14). Electric push rods (15) are provided at both ends of the front of the telescopic frame (14). The telescopic frame (14) has a snap-fit ​​groove (16) inside. Extension rods (17) are provided at both ends inside the snap-fit ​​groove (16). A first docking seat (18) is provided at one end inside the base frame (13). A second docking seat (19) is provided at the other end inside the base frame (13). Three sets of fine adjustment springs (20) are evenly arranged inside the base frame (13) through the first docking seat (18) and the second docking seat (19). The first docking seat (18) has an insertion tube (21) at its internal center, and protective springs (22) are evenly arranged on the side of the insertion tube (21). The second docking seat (19) has an insertion groove (23) on its surface, and deformation guide grooves (24) are provided on both sides of the insertion groove (23). The bottom wall of the equipment frame (1) is fixedly connected to two ends of a reinforcing top seat (33). One end of the reinforcing top seat (33) is fixedly connected to a lifting frame (34). The surface of the lifting frame (34) is provided with a lifting groove (35). The two ends of the lifting frame (34) and the bottom wall of the lifting groove (35) are provided with a limiting through groove (36). A conveying arc plate (37) is provided between the two sets of lifting frames (34).

2. The automatic cotter pin assembly apparatus of claim 1, wherein: One end of the extension rod (17) is provided with a control claw unit (25), and the upper and lower ends of the control claw unit (25) are provided with gripping claws (26), and a movable shaft (27) is provided between the gripping claws (26).

3. The automatic cotter pin assembly apparatus of claim 1, wherein: A sealing ring (28) is provided on the front edge of the dust collection box (11), and a partition plate (29) is fixedly connected to the center of the sealing ring (28). Dust collection fans (30) are provided at both ends of the front of the dust collection box (11).

4. The automatic cotter pin assembly apparatus of claim 1, wherein: The inner wall of the central frame (9) is provided with a protective rubber ring (31), and elastic pull straps (32) are provided at the four corners between the limiting frame (8) and the central frame (9).

5. The automatic cotter pin assembly apparatus of claim 1, wherein: The top of the equipment frame (1) is fixedly connected to a pull frame (38), and a lens (39) is provided on the surface of the pull frame (38). The pull frame (38) is movably connected to a pull folding plate (40), and a first handle (41) is fixedly connected to the surface of the pull folding plate (40).

6. The cotter pin automatic assembly apparatus of claim 1, wherein: The front two sides of the equipment frame (1) are movably connected to a cover plate (42), and the two ends of the cover plate (42) are fixedly connected to a second handle (43).

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