Automatic feeding riveting device for aluminum stamping piece piercing riveting bolt

Abstract

This invention discloses an automatic feeding riveting device for piercing and pressing bolts of aluminum stamping parts, belonging to the technical field of stamping and riveting machines. The device includes a large feeding hopper for storing and supplying rivets and a support frame body for supporting the hopper. The support frame body, located below the outlet of the large feeding hopper, has two symmetrically arranged feeding support frames for rivet conveying and a synchronous conveyor belt providing power for rivet movement. The two synchronous conveyor belts can drive the rivets to move along the feeding support frames, smoothly conveying the rivets falling from the large feeding hopper to the end face locator for positioning. A rivet lifting plate further lifts the rivets for easy access by the riveting machine. Compared to existing pneumatic feeding structures, this reduces the possibility of jamming failures. Simultaneously, the overall power structure is stable, maintenance is more convenient, effectively improving the automation level of feeding and riveting and reducing the frequency of manual intervention.

Description

Technical Field

[0001] This invention belongs to the technical field of stamping and riveting machines, specifically relating to an automatic feeding riveting device for piercing and riveting bolts on aluminum stamping parts. Background Technology

[0002] Riveting is a mechanical joining process that uses rivets to connect two or more workpieces (usually metal sheets or parts) together. Simply put, a nail-shaped part (rivet) is passed through a hole in the parts to be joined, and then, under external force, its end is deformed and thickened to form a rivet head, thereby clamping and fixing the parts together. This connection is non-removable unless the rivet is destroyed. Riveting is an old but still important non-removable joining technique, especially suitable for applications requiring high fatigue strength and the connection of dissimilar metals. Blind riveting has made it very popular in home decoration and light industry as well.

[0003] In existing technologies, when riveting large equipment is used, the riveting machine also uses automatic feeding. However, the feeding mechanism in existing technologies is mostly pneumatic feeding, which is more efficient and safer than traditional manual feeding. However, pneumatic automatic feeding can cause material jamming, requiring material guiding maintenance, which has certain technical drawbacks. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to overcome the shortcomings of the prior art and provide a fully automatic anchor bolt feeding device.

[0005] The technical solution adopted to solve the above technical problems is: an automatic feeding riveting device for piercing and pressing bolts of aluminum stamping parts, including a large feeding hopper for storing and supplying rivets and a support frame body for supporting the large feeding hopper. The support frame body is provided with two symmetrically arranged feeding support frames for conveying rivets and a synchronous conveyor belt for providing rivet movement power at a position below the discharge port of the large feeding hopper.

[0006] The above technical solution allows two synchronous conveyor belts to move the rivets along the feeding support frame, smoothly transporting the rivets falling from the large feeding hopper to the end face locator for positioning. The rivet lifting plate then lifts the rivets for easy access by the riveting machine. Compared to the existing pneumatic feeding structure, this reduces the possibility of jamming failures. At the same time, the overall power structure is stable and easier to maintain, effectively improving the automation level of feeding and riveting and reducing the frequency of manual intervention.

[0007] A rivet guide plate is rotatably connected to the inner middle position of any one of the feeding support frames via a hinge. There is a gap between the lower surface of the rivet guide plate and the upper surface of the feeding support frame. An end face locator for rivet positioning is provided on the side of both feeding support frames away from the large feeding hopper.

[0008] The above technical solution uses an inclined and rotatable rivet guide plate to guide rivets with incorrect postures, removing them from the guide notch and collecting them in the material recycling box below. This ensures that the rivets delivered to the end face positioner have a uniform posture, facilitating subsequent lifting and positioning for riveting operations and further reducing the probability of jamming. Rivets with the correct posture (rivet shank down, rivet head up) can smoothly slide through the gap between the rivet guide plate and the upper surface of the feeding support frame.

[0009] A rivet lifting plate for rivet lifting is fixedly connected to the lower center of the two feeding support frames.

[0010] The above technical solution can lift the rivet positioned at the end face locator upwards using the rivet lifting plate, so that the rivet rod is locked in the positioning groove, completing the positioning and facilitating the riveting machine to pick it up. The rivet positioning and feeding action is completed automatically without the need for manual adjustment of the rivet placement, thus improving the safety and efficiency of the riveting operation.

[0011] Furthermore, the upper surfaces of the two feeding support frames are provided with several evenly distributed tension adjustment grooves at the synchronous conveyor belt positions. Pressure rollers for supporting the synchronous conveyor belt are installed through these tension adjustment grooves, and the shafts of the pressure rollers pass through the tension adjustment grooves and are fixed on both sides of the shafts by adjusting bolt assemblies. Two symmetrically arranged drive wheels are provided on both sides of the synchronous conveyor belt on the upper surfaces of the feeding support frames, supporting the synchronous conveyor belt. Two symmetrically arranged drive motors are located below the feeding support frames, and the drive ends of the drive motors are fixedly connected to the corresponding drive wheels.

[0012] The above technical solution allows the drive motor to rotate the power wheel, which in turn drives two synchronous conveyor belts to operate synchronously. The rivet moves by relying on the friction between the synchronous conveyor belt and the outer side of the rivet head. At the same time, the tension of the synchronous conveyor belt can be adjusted by changing the position of the pressure wheel in the tension adjustment groove, ensuring stable friction of the conveyor belt, avoiding slippage during long-term use, effectively ensuring stable conveying power, and adjusting the distance between the synchronous conveyor belts to accommodate rivets of different sizes.

[0013] Furthermore, a connecting frame is fixedly installed on the side of the support frame body away from the end face locator, and a support plate is installed on the side of the support frame body close to the end face locator. The corresponding connecting frame and support plate are fixedly connected to the support frame body by a fixing bolt assembly. A discharge guide cylinder is threadedly connected to the bottom discharge port of the large feeding hopper, and the outlet of the discharge guide cylinder is directly between the two synchronous conveyor belts.

[0014] The above technical solution provides stable support for large feeding hoppers through support plates and connecting frames. At the same time, different models of discharge guide cylinders can be replaced by adjusting the threads to accommodate rivets of different sizes, avoiding excessive material discharge at one time that could cause conveyor belt congestion, ensuring accurate material drop position, and ensuring that the rivets fall accurately between two synchronous conveyor belts, thus guaranteeing a stable and smooth feeding process.

[0015] Furthermore, a return spring is fixedly connected between the side wall of the rivet guide plate and the inner side of the corresponding feeding support frame, and the return spring is a compression spring. The feeding support frame on the side away from the return spring has a guide notch at the position of the rivet guide plate. A guide rod is fixedly connected to the lower surface of the feeding support frame with the guide notch at the position of the guide notch. A material recycling box is provided at the position of the guide rod, and the material recycling box and the guide rod are limited and engaged by a connecting hook.

[0016] With the above technical solution, rivets with incorrect posture will be blocked by the rivet guide plate. The misaligned rivets will fall into the material recycling box along the guide notch under the guiding force of the rivet guide plate and be recycled. After the misaligned rivets are discharged, the return spring has a supporting and buffering effect on the rivet guide plate. The material recycling box is fixed to the guide rod by the connecting hook, which makes it convenient for the staff to disassemble and uniformly handle the recycled misaligned rivets. It will not cause any impact on the environment and will not cause any problems with the scattering or loss of parts.

[0017] Furthermore, positioning suction grooves are provided on the inner sides of the two feeding support frames, and width adjustment plates for accommodating rivets of different sizes are attracted and fixed in the positioning suction grooves.

[0018] The above technical solution allows for the adjustment of the spacing between the inner sides of the feeding support frame by replacing the width adjustment plates of different thicknesses. This facilitates the use of rivets with different head diameters without requiring modifications to the main structure of the feeding support frame. It offers greater adaptability, simple and convenient adjustment, and the suction-fixing method facilitates installation, disassembly, and adjustment.

[0019] Furthermore, the two feeding support frames have two symmetrically arranged fixed limiting holes on the side near the end face positioner. The end face positioner includes a positioning end block, and a support plate is fixedly connected to the lower surface of the positioning end block. The positioning end block has an arc-shaped positioning groove on the side near the large feeding hopper.

[0020] With the above technical solution, after the rivet is conveyed to the end face locator by the synchronous conveyor belt, it is stopped by the positioning groove and stops moving.

[0021] Furthermore, the positioning end block has two symmetrically arranged inserts fixedly connected to the side of the positioning groove above the tray, and the two inserts are inserted into the inner wall of the corresponding fixed limiting hole, and the end face positioner is fixedly connected to the lower surface of the feeding support frame by bolts.

[0022] The above technical solution ensures accurate installation of the end face positioner by interlocking the insert block with the fixed limiting hole. After being fixed with bolts, it is highly stable and will not shift its position under rivet impact, thus ensuring the rivet positioning accuracy. Furthermore, it is convenient to replace end face positioners of different sizes and specifications, and it can adapt to the positioning needs of rivets of different sizes.

[0023] Furthermore, a clamping support plate is fixedly connected to the outer side of any one of the feeding support frames near the end face locator, and a riveting machine is fixedly connected to the upper surface of the clamping support plate.

[0024] Through the above technical solution, the clamping support plate can provide stable installation support for the riveting machine, and the riveting machine can directly use rivets for riveting work.

[0025] The beneficial effects of the present invention are as follows: (1) The present invention uses two synchronous conveyor belts to drive the rivets to move along the direction of the feeding support frame, and smoothly transports the rivets falling from the large feeding hopper to the end face locator position to complete the positioning. With the help of the rivet lifting plate, the rivets are lifted to facilitate the riveting machine to pick up the rivets. Compared with the existing pneumatic feeding structure, the possibility of jamming failure is reduced. At the same time, the overall power structure is stable and maintenance is more convenient, effectively improving the automation level of feeding and riveting and reducing the frequency of manual intervention; (2) The present invention uses an inclined and rotatable rivet guide plate to guide rivets with incorrect posture, remove rivets with incorrect feeding posture from the guide notch position, and collect them uniformly in the jamming recycling box below, ensuring that the rivets delivered to the end face locator have a uniform posture, which facilitates subsequent lifting and positioning to complete the riveting operation and further reduces the probability of jamming. (3) By replacing the width adjustment plates of different thicknesses, the spacing between the inner sides of the feeding support frame can be changed, which is convenient to adapt to the use of rivets with different rivet head diameters. There is no need to modify the main structure of the feeding support frame, which makes it more adaptable and the adjustment operation is simple and convenient. Attached Figure Description

[0026] Figure 1 This is a first-view structural diagram of an automatic feeding riveting device for piercing and riveting bolts of aluminum stamping parts according to the present invention. Figure 2 This is a second-view structural diagram of an automatic feeding riveting device for piercing and riveting bolts of aluminum stamping parts according to the present invention. Figure 3 This is a structural diagram of a large feeding hopper for an automatic feeding and riveting device for piercing and riveting bolts of aluminum stamping parts according to the present invention. Figure 4 This is a perspective view of the automatic feeder of the automatic feeding riveting device for piercing and pressing bolts of aluminum stamping parts according to the present invention; Figure 5This is a partial exploded view of the automatic feeder of the automatic feeding riveting device for piercing and pressing bolts of aluminum stamping parts according to the present invention; Figure 6 This is a partial view of the automatic feeder of the automatic feeding riveting device for piercing and pressing bolts of aluminum stamping parts according to the present invention; Figure 7 yes Figure 6 Enlarged view of point A in the middle; Figure 8 This is a diagram of the end face locator of an automatic feeding riveting device for piercing and pressing bolts of aluminum stamping parts according to the present invention.

[0027] Reference numerals: 1. Large feeding hopper; 2. Support frame body; 3. Feeding support frame; 4. Material collection bin; 5. End face locator; 50. Positioning groove; 51. Positioning end block; 52. Support plate; 53. Insert block; 6. Rivet lifting plate; 7. Clamping support plate; 8. Riveting machine; 9. Fixing bolt assembly; 10. Drive motor; 11. Tension adjustment groove; 12. Fixing limit hole; 13. Discharge guide cylinder; 14. Support plate; 15. Connecting frame; 16. Pressure wheel; 17. Power wheel; 18. Positioning suction groove; 19. Rivet guide plate; 20. Return spring; 21. Synchronous conveyor belt; 22. Guide notch; 23. Connecting hook; 24. Adjusting bolt assembly; 25. Width adjustment plate; 26. Guide rod. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0029] like Figure 1-8 As shown in this embodiment, an automatic feeding riveting device for piercing and pressing bolts of aluminum stamping parts includes a large feeding hopper 1 for storing and supplying rivets and a support frame body 2 for supporting the large feeding hopper 1. The support frame body 2 is located below the discharge port of the large feeding hopper 1 and is provided with two symmetrically arranged feeding support frames 3 for rivet conveying and a synchronous conveyor belt 21 for providing rivet movement power. The two synchronous conveyor belts 21 can drive the rivets to move along the direction of the feeding support frames 3, and smoothly transport the rivets falling from the large feeding hopper 1 to the end face locator 5 for positioning. With the help of the rivet lifting plate 6, the rivets are lifted to facilitate the riveting machine 8 to pick up the rivets. Compared with the existing pneumatic feeding structure, the possibility of material jamming failure is reduced. At the same time, the overall power structure is stable and maintenance is more convenient, effectively improving the automation level of feeding and riveting and reducing the frequency of manual intervention.

[0030] Any feeding support frame 3 has a clamping support plate 7 fixedly connected to the outer side of one end near the end face locator 5. A riveting machine 8 is fixedly connected to the upper surface of the clamping support plate 7. The clamping support plate 7 can provide stable installation support for the riveting machine 8. The riveting machine 8 can directly use rivets for riveting work.

[0031] The inner sides of the two feeding support frames 3 are provided with positioning suction grooves 18. The positioning suction grooves 18 are fixedly attached to the width adjustment plates 25 for accommodating rivets of different sizes. By replacing the width adjustment plates 25 of different thicknesses, the spacing between the inner sides of the feeding support frames 3 can be changed, which is convenient for rivets with different head diameters. No modification to the main structure of the feeding support frame 3 is required, which makes it more adaptable, simple and convenient to adjust, and the suction fixing method is easy to install, disassemble and adjust.

[0032] Two symmetrically arranged fixed limiting holes 12 are opened on the side of the two feeding support frames 3 near the end face positioner 5. The end face positioner 5 includes a positioning end block 51. A support plate 52 is fixedly connected to the lower surface of the positioning end block 51. An arc-shaped positioning groove 50 is opened on the side of the positioning end block 51 near the large feeding hopper 1. After the rivet is transported to the end face positioner 5 by the synchronous conveyor belt 21, it is limited and blocked by the positioning groove 50 and stops moving.

[0033] Two symmetrically arranged inserts 53 are fixedly connected to the positioning end block 51 on the side near the positioning groove 50 above the support plate 52. The two inserts 53 are inserted into the inner wall of the corresponding fixed limiting hole 12. The end face positioner 5 is fixedly connected to the lower surface of the feeding support frame 3 by bolts. The positioning by the insertion of the inserts 53 into the fixed limiting hole 12 can ensure the accurate installation position of the end face positioner 5. After being fixed with bolts, it has strong stability and will not shift its position under the impact of rivets, thus ensuring the positioning accuracy of rivets. Moreover, it is convenient to replace the end face positioner 5 with different sizes and specifications, and it can adapt to the positioning needs of rivets of different sizes.

[0034] The upper surfaces of the two feeding support frames 3 are provided with several evenly distributed tension adjustment grooves 11 located at the position of the synchronous conveyor belt 21. Pressure rollers 16 for supporting the synchronous conveyor belt 21 are installed through the tension adjustment grooves 11, and the shafts of the pressure rollers 16 pass through the tension adjustment grooves 11 and are fixed on both sides of the shafts by adjusting bolt assemblies 24. Two symmetrically arranged drive wheels 17 are provided on both sides of the synchronous conveyor belt 21 on the upper surfaces of the feeding support frames 3, supporting the synchronous conveyor belt 21 through the drive wheels 17. Two symmetrically arranged drive wheels are located below the feeding support frames 3. The drive end of the motor 10 is fixedly connected to the corresponding power wheel 17. The drive motor 10 can drive the power wheel 17 to rotate, which in turn drives the two synchronous conveyor belts 21 to rotate synchronously. The rivet moves by relying on the friction between the synchronous conveyor belts 21 and the outside of the rivet head. At the same time, the tension of the synchronous conveyor belts 21 can be adjusted by changing the position of the pressure wheel 16 in the tension adjustment groove 11 to ensure stable friction of the conveyor belts, avoid slippage during long-term use, effectively ensure stable conveying power, and adjust the distance between the synchronous conveyor belts 21 to accommodate rivets of different sizes.

[0035] A rivet guide plate 19 is hinged to the middle of the inner side of any one of the feeding support frames 3. There is a gap between the lower surface of the rivet guide plate 19 and the upper surface of the feeding support frame 3. An end face locator 5 for rivet positioning is set on the side of the two feeding support frames 3 away from the large feeding hopper 1. The rivet guide plate 19, which is inclined and rotatable, can guide rivets with incorrect posture and remove them from the guide notch 22. The rivets fall into the jamming recycling box 4 below for unified recycling, ensuring that the rivets delivered to the end face locator 5 have a uniform posture. This facilitates the subsequent lifting and positioning to complete the riveting operation and further reduces the probability of jamming. Rivets with the correct posture, i.e., rivet with the rivet rod facing down and the rivet head facing up, can smoothly slide through the gap between the rivet guide plate 19 and the upper surface of the feeding support frame 3.

[0036] A return spring 20 is fixedly connected between the side wall of the rivet guide plate 19 and the inner side of the corresponding feeding support frame 3. The return spring 20 is a compression spring. The feeding support frame 3 on the side away from the return spring 20 has a guide notch 22 at the position of the rivet guide plate 19. A guide rod 26 is fixedly connected to the lower surface of the feeding support frame 3 with the guide notch 22 at the position of the guide notch 22. A material collection box 4 is set at the position of the guide rod 26. The material collection box 4 and the guide rod 26 are limited and engaged by a connecting hook 23. Rivets with incorrect posture will be blocked by the rivet guide plate 19. The misaligned rivets fall into the material collection box 4 along the guide notch 22 under the guiding force of the rivet guide plate 19 and are collected. After the misaligned rivets are discharged, the return spring 20 has a supporting and buffering effect on the rivet guide plate 19. The material collection box 4 is fixed to the guide rod 26 by the connecting hook 23, which makes it convenient for the staff to disassemble and uniformly handle the collected misaligned rivets. It will not affect the environment and will not cause any problems with the scattering or loss of parts.

[0037] Two feeding support frames 3 are fixedly connected to the middle of the bottom of the rivet lifting plate 6 for lifting rivets. The rivet positioned at the end face positioner 5 can be lifted upward by the rivet lifting plate 6, so that the rivet rod part is stuck in the positioning groove 50, and the positioning is completed. This makes it convenient for the riveting machine 8 to clamp and automatically complete the rivet positioning and feeding action. There is no need for manual adjustment of the rivet placement, which improves the safety and efficiency of the riveting operation.

[0038] A connecting frame 15 is fixedly installed on the side of the support frame body 2 away from the end face locator 5, and a support plate 14 is installed on the side of the support frame body 2 close to the end face locator 5. The corresponding connecting frame 15 and support plate 14 are fixedly connected to the support frame body 2 by a fixing bolt assembly 9. A discharge guide cylinder 13 is threadedly connected to the bottom discharge port of the large feeding hopper 1, and the outlet of the discharge guide cylinder 13 is directly between the two synchronous conveyor belts 21. The large feeding hopper 1 can be stably supported by the support plate 14 and the connecting frame 15. At the same time, different models of discharge guide cylinders 13 can be replaced by thread adjustment to adapt to different sizes of rivets, avoid excessive material discharge at one time causing conveyor belt congestion, ensure accurate material drop position, and ensure that the rivets fall accurately between the two synchronous conveyor belts 21, ensuring a stable and smooth feeding process.

[0039] The working principle of this embodiment is as follows: Rivets to be processed are poured in batches into a large feeding hopper 1. The rivets are discharged from the discharge guide cylinder 13 and accurately fall between two synchronous conveyor belts 21. The drive motor 10 drives the power wheel 17 to rotate, which in turn drives the two synchronous conveyor belts 21 to rotate synchronously. The friction between the synchronous conveyor belts 21 and the outer side of the rivet head drives the rivets to move towards the end face locator 5. When the rivets pass the position of the rivet guide plate 19, rivets with the correct posture (rivet head facing upwards and rivet rod facing downwards) can smoothly pass through the gap below the rivet guide plate 19. Rivets with incorrect posture are blocked by the rivet guide plate 19, and under the action of external force, the rivet guide plate 19 is squeezed and deflected, causing... The misaligned rivets slide out from the guide notch 22 and fall into the material recycling bin 4 for unified collection. The rivets that pass through the rivet guide plate 19 continue to move until they are stopped at the end face locator 5 by the positioning groove 50. At this time, the rivet lifting plate 6 rises and lifts the rivet upward, so that the rivet rod is stuck in the positioning groove 50, completing the rivet positioning and waiting for the riveting machine 8 to clamp and perform the riveting operation. When it is necessary to adapt to rivets of different sizes, it is only necessary to replace the width adjustment plate 25 of different thicknesses, adjust the position of the pressure wheel 16 in the tension adjustment groove 11, adjust the distance between the two synchronous conveyor belts 21, and replace the end face locator 5 of the corresponding size to complete the adaptation. The operation is convenient and quick.

[0040] The above description is merely a preferred embodiment of the present invention and is not intended to limit the scope of protection of the present invention.

Claims

1. An automatic feeding riveting device for piercing a rivet bolt for an aluminum press part, comprising a large hopper (1) for storing a rivet to be fed and a support frame body (2) for supporting the large hopper (1), characterized in that: The main body (2) of the support frame is located below the discharge port of the large feeding hopper (1) and is provided with two symmetrically arranged feeding support frames (3) for rivet conveying and a synchronous conveyor belt (21) for providing rivet movement power. A rivet guide plate (19) is rotatably connected to the inner middle position of any of the feeding support frames (3) via a hinge. There is a gap between the lower surface of the rivet guide plate (19) and the upper surface of the feeding support frame (3). An end face locator (5) for rivet positioning is provided on the side of the two feeding support frames (3) away from the large feeding hopper (1). The two feeding support frames (3) are fixedly connected to the middle of the bottom of the rivet lifting plate (6) for rivet lifting.

2. An automatic feeding riveting device for punch riveted bolts of aluminum stamping parts according to claim 1, characterized in that, The upper surfaces of the two feeding support frames (3) are provided with several evenly distributed tension adjustment grooves (11) located at the position of the synchronous conveyor belt (21). The tension adjustment grooves (11) are provided with pressure rollers (16) for supporting the synchronous conveyor belt (21). The shaft of the pressure roller (16) passes through the tension adjustment grooves (11) and is fixed on both sides of the shaft by adjusting bolt assemblies (24). The upper surfaces of the feeding support frames (3) are provided with two symmetrically arranged power wheels (17) located on both sides of the synchronous conveyor belt (21). The synchronous conveyor belt (21) is supported by the power wheels (17). The feeding support frames (3) are provided with two symmetrically arranged drive motors (10) located below. The drive ends of the drive motors (10) are fixedly connected to the corresponding power wheels (17).

3. The automatic feeding riveting device for piercing riveting bolts of aluminum stamping parts according to claim 1, characterized in that, A connecting frame (15) is fixedly installed on the side of the support frame body (2) away from the end face locator (5), and a support plate (14) is installed on the side of the support frame body (2) close to the end face locator (5). The corresponding connecting frame (15) and support plate (14) are fixedly connected to the support frame body (2) by a fixing bolt assembly (9). A discharge guide cylinder (13) is threadedly connected to the bottom discharge port of the large feeding hopper (1), and the outlet of the discharge guide cylinder (13) is directly between the two synchronous conveyor belts (21).

4. The automatic feeding riveting device for punch riveted bolts of aluminum stamping parts according to claim 1, characterized in that, A return spring (20) is fixedly connected between the side wall of the rivet guide plate (19) and the inner side of the corresponding feeding support frame (3). The return spring (20) is a compression spring. The feeding support frame (3) on the side away from the return spring (20) has a guide notch (22) at the position of the rivet guide plate (19). The lower surface of the feeding support frame (3) with the guide notch (22) is fixedly connected to a guide rod (26) at the position of the guide notch (22). A material recycling box (4) is provided at the position of the guide rod (26). The material recycling box (4) and the guide rod (26) are limited and engaged by a connecting hook (23).

5. The automatic feeding riveting device for punch riveted bolts of aluminum stamping parts according to claim 1, characterized in that, The two feeding support frames (3) are provided with positioning suction grooves (18) on their inner sides, and the positioning suction grooves (18) are fixed with width adjustment plates (25) for accommodating rivets of different sizes.

6. The automatic feeding riveting device for piercing and pressing bolts on aluminum stamping parts according to claim 1, characterized in that, Two feeding support frames (3) have two symmetrically arranged fixed limiting holes (12) on the side near the end face positioner (5). The end face positioner (5) includes a positioning end block (51). A support plate (52) is fixedly connected to the lower surface of the positioning end block (51). The positioning end block (51) has an arc-shaped positioning groove (50) on the side near the large feeding hopper (1).

7. The automatic feeding riveting device for piercing and pressing bolts on aluminum stamping parts according to claim 6, characterized in that, The positioning end block (51) is fixedly connected to two symmetrically arranged inserts (53) on the side near the positioning groove (50) above the tray (52), and the two inserts (53) are inserted into the inner wall of the corresponding fixed limiting hole (12), and the end face locator (5) is fixedly connected to the lower surface of the feeding support frame (3) by bolts.

8. The automatic feeding riveting device for piercing and pressing bolts of aluminum stamping parts according to claim 1, characterized in that: Any feeding support frame (3) has a clamping support plate (7) fixedly connected to the outer side of one end of the end face locator (5), and a riveting machine (8) is fixedly connected to the upper surface of the clamping support plate (7).

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