Automatic nail feeding mechanism of a press riveter

Abstract

The utility model belongs to the technical field of machining, especially a kind of automatic nail feeding mechanism of riveting press. The mechanism aims at improving the efficiency and adaptability of nail feeding, solves the problems of low efficiency, poor precision of manual nail feeding and the difficulty of existing automatic nail feeding mechanism to quickly adapt to different specifications of nails. The mechanism includes the main body of riveting press, the slidingly arranged lifting seat, the fixed seat and the movable plate movable on the fixed seat. The movable plate is connected with the connecting seat with riveting bottom bar through mounting bracket. Two groups of feeding assemblies are arranged on the top of movable plate, each feeding assembly includes mounting seat, air cylinder, clamping plate driven closed by torsional spring and feeding pipe for conveying nails. Two groups of feeding stations corresponding to different specifications of nails are switched conveniently by sliding movable plate, and the position is locked by positioning latch. The mechanism realizes the automatic stable conveying of nails, and can be quickly switched to adapt to different specifications of processing requirements, effectively improves the precision and efficiency of riveting operation.

Description

Technical Field

[0001] This utility model relates to the field of mechanical processing technology, and in particular to an automatic riveting feeding mechanism for a riveting machine. Background Technology

[0002] A riveting press machine is a new type of riveting equipment developed based on the principle of cold rolling; it refers to mechanical equipment that can rivet items together. As a commonly used connecting device in the field of machining, the efficiency and stability of the rivet feeding process of a riveting press machine directly affects the overall processing quality and production progress. Currently, the rivet feeding methods of most riveting press machines on the market still have significant limitations: Some equipment relies on manual feeding of nails, requiring workers to frequently pick up and align the nails with the riveting position. This is not only labor-intensive, but also prone to nail positioning deviations due to human error, which affects the riveting accuracy. Furthermore, each nail feeding takes a long time, making it difficult to meet the efficiency requirements of mass production. Meanwhile, some existing automatic nail feeding mechanisms can only handle nails of a single specification. When processing requirements change or different specifications of nails need to be replaced, the original feeding components need to be disassembled and reinstalled with components adapted to the new specifications. This operation is cumbersome and time-consuming, and seriously disrupts production continuity.

[0003] To address the aforementioned problems, this utility model document proposes an automatic riveting feeding mechanism for a riveting machine. Utility Model Content

[0004] The purpose of this utility model is to solve the problems of high labor intensity, easy positioning deviation and low efficiency of manual nail feeding in the existing technology; and the fact that some automatic nail feeding mechanisms are only compatible with a single type, and require disassembly and assembly of components to change processing specifications, which is cumbersome and time-consuming. Therefore, an automatic nail feeding mechanism for a riveting machine is proposed.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: An automatic riveting feeding mechanism for a riveting machine includes: The main body of the riveting machine has a lifting seat slidably mounted on one side of the main body via a guide rail, and a fixed seat is fixedly mounted on the top of the lifting seat, with a sliding groove provided on the top of the fixed seat; A movable plate, wherein the movable plate is slidably connected to the inner wall of the groove at the top of the fixed base via a slider fixedly installed at the bottom; A connecting seat and a riveting base rod are provided. The riveting base rod is fixedly installed on the top of the connecting seat, which is located above the fixed seat. The riveting base rod corresponds to the pressure rod of the riveting machine body. Mounting brackets are fixedly installed on both sides of the connecting seat, and the other ends of the two mounting brackets are respectively fixedly connected to the adjacent side of the fixed seat. The movable plate is located between the connecting seat and the fixed seat. Two sets of feeding assemblies, each feeding assembly including a mounting base, a cylinder and two clamping plates, wherein the cylinder is used to push the nail between the clamping plates and the two clamping plates are used to clamp the nail; The movable plate moves along the slide to switch the positions of the two sets of feeding components, so that the clamping plate of the selected feeding component is aligned with the pressing bottom rod.

[0006] In one possible design, the feeding assembly further includes an L-shaped mounting plate fixedly installed on the top of the movable plate. A support frame is fixedly installed on the top of the L-shaped mounting plate, and a fixing block is fixedly installed on the top of the support frame. The mounting base is fixedly installed on one side of the fixing block. Two fixing rods are fixedly installed on the side of the mounting base away from the fixing block. Two clamping plates are rotatably sleeved on the outer walls of the two fixing rods. Clamping grooves are provided on the sides of the two clamping plates that are close to each other. Torsion springs are sleeved on the outer walls of the two fixing rods. One end of each torsion spring is fixedly connected to one side of the mounting base, and the other end of each torsion spring is fixedly connected to one end of the adjacent clamping plate, so that the two clamping plates continue to move closer together. Two positioning blocks are fixedly installed on one side of the mounting base, and the two positioning blocks abut against the tops of the two clamping plates.

[0007] In one possible design, the feeding assembly further includes a rectangular groove formed inside the mounting base, a feed pipe fixedly mounted on the top of the mounting base, the bottom end of the feed pipe communicating with the rectangular groove, and a pneumatic conveying pipe fixedly connected to the top end of the feed pipe; a discharge groove is formed at the bottom of the rectangular groove, and the discharge groove is located on the side of the mounting base near the clamping plate.

[0008] In one possible design, the feeding assembly further includes a push plate that slides through one side of the fixed block, the cylinder is fixedly embedded inside the fixed block, one end of the piston rod of the cylinder is fixedly connected to one end of the push plate, and the push plate slides against the inner wall of the rectangular groove; one end of the push plate is used to abut against the head of the nail to push the nail into the clamping groove through the discharge groove.

[0009] In one possible design, an arc-shaped magnet is fixedly mounted on the bottom of the mounting base, and the arc-shaped magnet corresponds to the bottom end of the feed tube.

[0010] In one possible design, the two sets of feeding assemblies are located on both sides of the connecting seat, for conveying nails of different specifications; the clamping plates of the two sets of feeding assemblies correspond to and cooperate with the riveting base rod.

[0011] In one possible design, one of the mounting brackets has two through holes on its top, and the top of the movable plate has multiple positioning holes, with the two through holes cooperating with the multiple positioning holes; positioning pins are slidably disposed in the two through holes, and the two bottom ends of the positioning pins are used to pass through the corresponding positioning holes to lock the movable plate.

[0012] In one possible design, an adjusting screw is rotatably mounted on the bottom of the lifting seat, and the adjusting screw is threadedly engaged with an adjusting seat fixedly mounted on the inner wall of the bottom of the riveting machine body.

[0013] In this application, during operation of the automatic riveting mechanism of the riveting machine, the lifting seat slides on the main body of the riveting machine via a guide rail. The adjusting screw engages with the adjusting seat fixed to the bottom of the riveting machine body via a threaded connection, thereby adjusting the height of the lifting seat. The fixed seat is fixed to the top of the lifting seat, and the moving plate is slidably connected to the sliding groove at the top of the fixed seat via a slider at the bottom, allowing the moving plate to move horizontally. The connecting seat is connected to the fixed seat via mounting brackets on both sides, and the riveting base rod is fixed to the top of the connecting seat, corresponding to the pressure rod of the riveting machine body.

[0014] The pneumatic feeding tube of the feeding assembly transports nails from the vibratory feeder to the feed tube. The lowest nail falls into a rectangular groove inside the mounting base along the feed tube, where an arc-shaped magnet provides simple magnetic attraction and fixation. Meanwhile, the other nails are arranged sequentially inside the feed tube. Then, the piston rod of the cylinder pushes a push plate, which slides along the inner wall of the rectangular groove, pushing the nail from the discharge slot into the clamping slot. At this point, the nail is positioned between two clamping plates. The clamping plates rotate and are fitted onto a fixed rod. A torsion spring keeps the two clamping plates close together, clamping the nail through the clamping slot. A positioning block abuts against the top of the clamping plate to prevent excessive rotation of the clamping plate. Next, the user can place the sheet metal to be processed on the riveting base rod, align the corresponding holes with the holes on the top of the riveting base rod, and then press down the pressure rod of the riveting machine body, which abuts against the two clamping plates to make them rotate. At the same time, the nail is pushed down onto the sheet metal. With the cooperation of the pressure rod and the riveting base rod, the riveting operation can be completed. When the pressure rod is retracted, the two clamping plates will return to their original positions and move closer together, at which point the next nail can be pushed.

[0015] When handling nails of different sizes, simply remove the positioning pin, and the moving plate can be moved along the slide groove of the fixed base to switch the positions of the two sets of feeding components. When one side of one of the L-shaped mounting plates abuts against the connecting base, it ensures that the two clamping plates on that side and the nails between them are aligned with the riveting base rod. After the movement is complete, pass the bottom end of the positioning pin through the through hole of the mounting bracket and the positioning hole of the moving plate to lock the moving plate.

[0016] Beneficial effects: The automatic nail feeding mechanism of the riveting machine described in this utility model realizes fully automatic nail feeding through the feeding component. The pneumatic feeding pipe, together with the external vibrating plate and pneumatic feeding structure, can stably feed the neatly arranged nails to the feeding pipe. Then, the cylinder pushes the push plate to accurately push the nails between the clamping plates. The entire process does not require manual nail picking and feeding, which reduces the labor intensity of workers, avoids manual positioning deviation, significantly improves riveting accuracy, and reduces the time spent on single nail feeding, meeting the efficiency requirements of mass production. In this utility model, the automatic nail feeding mechanism for a riveting machine has two sets of feeding components designed for nails of different specifications. The switching between the two sets of feeding components can be completed by moving the moving plate along the sliding groove of the fixed seat. During the switching process, no components need to be disassembled; only the position of the moving plate needs to be adjusted and locked with the positioning pin. This switching method is simple to operate, greatly shortens the time required for specification change, effectively avoids production interruption, enables the equipment to quickly adapt to different processing needs, and improves the responsiveness to diversified production tasks. In this utility model, the automatic nail feeding mechanism for a riveting machine includes a torsion spring in the feeding assembly that drives the clamping plate to continuously approach, forming a stable clamping of the nail in conjunction with the clamping groove; the positioning block abuts against the top of the clamping plate to prevent excessive rotation of the clamping plate, ensuring that the clamping plate always remains horizontal and preventing the nail from shaking during feeding and riveting; at the same time, the arc-shaped magnet can magnetically attract and fix the nail that falls into the rectangular groove, preventing the nail from shifting or tilting before being pushed, reducing feeding jamming, further reducing riveting deviation, and reducing the production of defective products; In this utility model, the automatic riveting mechanism of the riveting machine has a lifting seat that is threadedly engaged with the adjusting seat at the bottom of the riveting machine body via an adjusting screw. The height of the lifting seat can be easily adjusted by rotating the adjusting screw, thereby adapting to different specifications of the sheet metal to be processed. After the moving plate is switched, the positioning pin passes through the through hole of the mounting bracket and the positioning hole of the moving plate to achieve precise locking, ensuring that the feeding component is aligned with the riveting base rod. No additional calibration operation is required, further simplifying the operation process and improving the ease of use of the equipment. In this invention, the device achieves automatic feeding and clamping of nails in the use of a riveting machine, improving riveting accuracy and efficiency; at the same time, different specifications of feeding components can be quickly switched by sliding the moving plate, enhancing the adaptability of the equipment; the clamping mechanism and magnetic fixation ensure stable nail positioning, while the height adjustment function facilitates adaptation to different sheet materials. The overall operation is simple and can meet the needs of mass production. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural schematic diagram of an automatic riveting mechanism for a riveting machine proposed in this utility model; Figure 2 This is a schematic diagram of the moving plate structure of an automatic riveting mechanism for a riveting machine proposed in this utility model; Figure 3 This is a schematic diagram showing the disassembled structure of the feeding component of an automatic riveting machine according to the present invention; Figure 4 This is a schematic diagram of the feeding component of an automatic riveting machine according to the present invention from another perspective. Figure 5 This is a cross-sectional structural diagram of the feeding component of an automatic riveting mechanism for a riveting machine proposed in this utility model.

[0018] In the diagram: 1. Main body of the riveting machine; 2. Lifting seat; 3. Fixed seat; 4. Adjusting screw; 5. Mounting bracket; 6. Connecting seat; 7. Riveting base rod; 8. Through hole; 9. Moving plate; 10. Positioning hole; 11. Positioning pin; 12. L-shaped mounting plate; 13. Support frame; 14. Fixing block; 15. Cylinder; 16. Push plate; 17. Mounting seat; 18. Feed pipe; 19. Pneumatic conveying pipe; 20. Fixing rod; 21. Clamping plate; 22. Torsion spring; 23. Clamping groove; 24. Discharge groove; 25. Arc magnet; 26. Positioning block. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0020] In one embodiment: Refer to Figure 1-5 A riveting mechanism includes: a riveting machine body 1, a lifting seat 2, a fixed seat 3, a moving plate 9, a connecting seat 6, a riveting base rod 7, and two sets of feeding components.

[0021] In this embodiment, a lifting seat 2 is slidably mounted on one side of the riveting machine body 1 via a guide rail. A fixed seat 3 is fixedly mounted on the top of the lifting seat 2. A groove is formed on the top of the fixed seat 3, and a moving plate 9 is slidably connected to the inner wall of the groove via a bottom slider. A connecting seat 6 is located above the fixed seat 3, and a riveting bottom rod 7 is fixedly mounted on its top, corresponding to the pressure rod of the riveting machine body 1. Mounting brackets 5 are fixedly mounted on both sides of the connecting seat 6, and the other end of the mounting brackets 5 is fixedly connected to the adjacent side of the fixed seat 3. The moving plate 9 is located between the connecting seat 6 and the fixed seat 3.

[0022] In this embodiment, the feeding assembly includes a mounting base 17, a cylinder 15, and two clamping plates 21. An L-shaped mounting plate 12 is fixedly mounted on the top of the movable plate 9. A support frame 13 is fixed to the top of the L-shaped mounting plate 12, and a fixing block 14 is fixed to the top of the support frame 13. The mounting base 17 is fixed to one side of the fixing block 14. Two fixing rods 20 are fixed to the side of the mounting base 17 away from the fixing block 14. The two clamping plates 21 are rotatably sleeved on the outer wall of the fixing rods 20, with clamping grooves 23 formed on their adjacent sides. A torsion spring 22 is sleeved on the outer wall of the fixing rods 20. One end of the torsion spring 22 is fixed to the mounting base 17 via a spring seat, and the other end is fixed to the clamping plate 21 via a spring seat, enabling the clamping plate 21 to continuously approach and clamp the nail. Two positioning blocks 26 are fixed to one side of the mounting base 17, abutting against the top of the clamping plate 21 to ensure that the clamping plate 21 remains horizontal.

[0023] In this embodiment, a rectangular groove is formed inside the mounting base 17, and a feed pipe 18 is fixed at the top. The bottom end of the feed pipe 18 is connected to the rectangular groove, and the top end is connected to a pneumatic conveying pipe 19. The pneumatic conveying pipe 19 cooperates with an external vibrating plate and a pneumatic conveying structure to transport nails. The external vibrating plate and pneumatic conveying structure are existing conventional technologies and will not be described further. The inner diameter of the feed pipe 18 matches the nails to be processed, enabling the nails to be arranged vertically. A discharge groove 24 is formed at the bottom of the rectangular groove, located on the side of the mounting base 17 near the clamping plate 21, to facilitate the bottom end of the nails to pass through and move between the clamping plates 21.

[0024] In this embodiment, a cylinder 15 is fixedly embedded inside the fixing block 14. A push plate 16 is fixed to one end of the piston rod of the cylinder 15. The push plate 16 slides through one side of the fixing block 14 and slides in cooperation with the inner wall of the rectangular groove. One end of the push plate 16 abuts against the head of the nail to be processed. The nail in the rectangular groove can be pushed into the clamping groove 23 through the discharge groove 24.

[0025] In this embodiment, two sets of feeding components are located on both sides of the connecting seat 6, used to feed nails of different specifications. The clamping plates 21 of both sets of feeding components are engaged with the riveting base rod 7. The movable plate 9 moves along the slide groove of the fixed seat 3 to realize the switching of the two sets of feeding components. Two through holes 8 are opened on the top of one of the mounting brackets 5, and multiple positioning holes 10 are opened on the top of the movable plate 9. The through holes 8 and the positioning holes 10 are engaged, and a positioning pin 11 is slidably installed in the through hole 8. The bottom end of the positioning pin 11 passes through the positioning hole 10 to complete the positioning and locking of the movable plate 9.

[0026] This application can be used in the field of machining technology, or in other fields applicable to this application.

[0027] In another embodiment: Reference Figure 1 , 4 An automatic riveting feeding mechanism for a riveting machine, which is applied to the field of machining technology; In this embodiment, an adjusting screw 4 is rotatably installed at the bottom of the lifting seat 2. The adjusting screw 4 is threadedly engaged with the adjusting seat fixedly installed on the inner wall of the bottom of the riveting machine body 1 to achieve height adjustment of the lifting seat 2.

[0028] In this embodiment, an arc-shaped magnet 25 is fixed at the bottom of the mounting base 17, corresponding to the bottom end of the feed tube 18, which can easily magnetically fix the nails discharged into the rectangular groove.

[0029] However, as is well known to those skilled in the art, the working principles and wiring methods of the riveting machine body 1 and cylinder 15 are conventional means or common knowledge, and will not be elaborated here. Those skilled in the art can make any selections according to their needs or convenience.

[0030] The working principle and usage process of this technical solution are as follows: When the automatic riveting feeding mechanism of the riveting machine is working, the lifting seat 2 slides on the main body 1 of the riveting machine via the guide rail. The adjusting screw 4 engages with the adjusting seat fixed to the bottom of the main body 1 of the riveting machine via a threaded connection, thereby adjusting the height of the lifting seat 2. The fixed seat 3 is fixed to the top of the lifting seat 2. The moving plate 9 is slidably connected to the sliding groove at the top of the fixed seat 3 via the bottom slider, allowing the moving plate 9 to move horizontally. The connecting seat 6 is connected to the fixed seat 3 via the mounting brackets 5 on both sides. The riveting bottom rod 7 is fixed to the top of the connecting seat 6, corresponding to the pressure rod of the main body 1 of the riveting machine.

[0031] The pneumatic feed tube 19 of the feeding assembly transports nails from the vibratory feeder to the feed tube 18. The lowest nail falls along the feed tube 18 into the rectangular groove inside the mounting base 17, where the arc-shaped magnet 25 provides simple magnetic attraction and fixation. Meanwhile, the other nails are arranged sequentially within the feed tube 18. Then, the piston rod of the cylinder 15 pushes the push plate 16, which slides along the inner wall of the rectangular groove, pushing the nail from the discharge groove 24 into the clamping groove 23. At this point, the nail is positioned between two clamping plates 21. The clamping plates 21 are rotatably mounted on the fixing rod 20, and the torsion spring 22 keeps the two clamping plates 21 close together, clamping the nail through the clamping groove 23. The positioning block 26 abuts against the top of the clamping plate 21 to prevent excessive rotation of the clamping plate 21. Afterwards, the user can place the sheet metal to be processed on the riveting base rod 7, align the corresponding holes with the holes at the top of the riveting base rod 7, and then press down the pressure rod of the riveting machine body 1, which abuts against the two clamping plates 21 to make it rotate, while the nail is pushed down onto the sheet metal in sync; with the cooperation of the pressure rod and the riveting base rod 7, the riveting operation can be completed; when the pressure rod is retracted, the two clamping plates 21 will return to their original position and move closer together, at which point the next nail can be pushed.

[0032] When handling nails of different sizes, simply remove the positioning pin 11 to move the movable plate 9 along the slide groove of the fixed base 3, switching the positions of the two sets of feeding components. When one side of one of the L-shaped mounting plates 12 abuts against the connecting base 6, it ensures that the two clamping plates 21 on that side and the nails between them are aligned with the pressing base rod 7. After the movement is completed, pass the bottom end of the positioning pin 11 through the through hole 8 of the mounting bracket 5 and the positioning hole 10 of the movable plate 9 to lock the movable plate 9.

[0033] The accompanying drawings in this application are for illustrative purposes only. The dimensions and shapes of the components shown are not actual limitations but are merely schematic representations. In actual implementation, the components can be reasonably configured and adjusted according to specific needs and actual conditions.

[0034] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. An automatic riveting feeding mechanism for a riveting machine, characterized in that, include: The main body of the riveting machine (1) has a lifting seat (2) slidably installed on one side of the main body of the riveting machine (1) via a guide rail. A fixed seat (3) is fixedly installed on the top of the lifting seat (2). A sliding groove is provided on the top of the fixed seat (3). The movable plate (9) is slidably connected to the inner wall of the groove at the top of the fixed seat (3) by a slider fixedly installed at the bottom; A connecting seat (6) and a riveting base rod (7) are provided. The riveting base rod (7) is fixedly installed on the top of the connecting seat (6). The connecting seat (6) is located above the fixed seat (3). The riveting base rod (7) corresponds to the pressure rod of the riveting machine body (1). Mounting brackets (5) are fixedly installed on both sides of the connecting seat (6). The other ends of the two mounting brackets (5) are fixedly connected to the adjacent side of the fixed seat (3). The movable plate (9) is located between the connecting seat (6) and the fixed seat (3). Two sets of feeding assemblies, each feeding assembly including a mounting base (17), a cylinder (15) and two clamping plates (21), the cylinder (15) being used to push the nail between the clamping plates (21), and the two clamping plates (21) being used to clamp the nail; The movable plate (9) moves along the chute to switch the positions of the two sets of feeding components, so that the clamping plate (21) of the selected feeding component is aligned with the riveting bottom rod (7).

2. The automatic riveting mechanism of the riveting machine according to claim 1, characterized in that, The feeding assembly also includes an L-shaped mounting plate (12) fixedly installed on the top of the movable plate (9). A support frame (13) is fixedly installed on the top of the L-shaped mounting plate (12). A fixing block (14) is fixedly installed on the top of the support frame (13). The mounting seat (17) is fixedly installed on one side of the fixing block (14). Two fixing rods (20) are fixedly installed on the side of the mounting seat (17) away from the fixing block (14). The two clamping plates (21) are respectively rotatably sleeved on the outer walls of the two fixing rods (20). Clamping grooves (23) are provided on the side of the plates (21) that are close to each other; torsion springs (22) are sleeved on the outer walls of the two fixing rods (20), one end of the two torsion springs (22) is fixedly connected to one side of the mounting base (17), and the other end of the two torsion springs (22) is fixedly connected to one end of the adjacent clamping plate (21) so that the two clamping plates (21) continue to be close to each other; two positioning blocks (26) are fixedly installed on one side of the mounting base (17), and the two positioning blocks (26) abut against the top of the two clamping plates (21).

3. The automatic riveting mechanism of the riveting machine according to claim 2, characterized in that, The feeding assembly also includes a rectangular groove inside the mounting base (17). A feed pipe (18) is fixedly installed on the top of the mounting base (17). The bottom end of the feed pipe (18) is connected to the rectangular groove. A pneumatic conveying pipe (19) is fixedly connected to the top end of the feed pipe (18). A discharge groove (24) is provided at the bottom of the rectangular groove. The discharge groove (24) is located on the side of the mounting base (17) near the clamping plate (21).

4. The automatic riveting mechanism of the riveting machine according to claim 3, characterized in that, The feeding assembly also includes a push plate (16) that slides through one side of the fixed block (14), the cylinder (15) is fixedly embedded inside the fixed block (14), one end of the piston rod of the cylinder (15) is fixedly connected to one end of the push plate (16), and the push plate (16) slides in cooperation with the inner wall of the rectangular groove; one end of the push plate (16) is used to abut against the head of the nail so as to push the nail into the clamping groove (23) through the discharge groove (24).

5. The automatic riveting mechanism of the riveting machine according to claim 4, characterized in that, An arc-shaped magnet (25) is fixedly installed at the bottom of the mounting base (17), and the arc-shaped magnet (25) corresponds to the bottom end of the feed pipe (18).

6. The automatic riveting mechanism of the riveting machine according to claim 1, characterized in that, The two sets of feeding components are located on both sides of the connecting seat (6) and are used to feed nails of different specifications; the clamping plates (21) of the two sets of feeding components are corresponding to and cooperate with the riveting bottom rod (7).

7. The automatic riveting mechanism of the riveting machine according to claim 6, characterized in that, One of the mounting brackets (5) has two through holes (8) on its top, and the top of the movable plate (9) has multiple positioning holes (10). The two through holes (8) cooperate with the multiple positioning holes (10). Positioning pins (11) are slidably disposed in the two through holes (8). The two bottom ends of the positioning pins (11) are used to pass through the corresponding positioning holes (10) to lock the movable plate (9).

8. The automatic riveting mechanism of the riveting machine according to claim 1, characterized in that, An adjusting screw (4) is rotatably installed at the bottom of the lifting seat (2), and the adjusting screw (4) is threadedly engaged with the adjusting seat fixedly installed on the inner wall of the bottom of the riveting machine body (1).

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