Automobile door lock riveting tool

Abstract

The utility model discloses a kind of automobile door lock riveting tool, including the base that can be installed on the riveting equipment workbench, the slide plate that can be linearly slidably installed on the base, the transposition driving device of different riveting points and the riveting head of riveting equipment being opposite by driving slide plate reciprocating sliding along the straight line of two riveting points of punch pin, fixed clamping block fixedly installed on slide plate, movable clamping block that can be horizontally slidably installed on slide plate, clamping arm that movable clamping block sliding and fixed clamping block extend along vertical direction are driven together to clamp punch pin ring by clamping driving device, and the riveting equipment control system that can control riveting equipment, transposition driving device and clamping driving device start-stop action, support arm that extends along horizontal direction on fixed clamping block forms the cavity bottom surface that can support the lower end of punch pin ring, punch pin ring accommodating groove is formed on the fixed clamping surface of fixed clamping block, the utility model realizes punch pin ring and bottom plate full-automatic riveting, and riveting quality and riveting efficiency are high.

Description

Technical Field

[0001] This utility model relates to the field of assembly fixtures, and in particular to a riveting fixture for automotive door locks. Background Technology

[0002] The car door lock includes a U-shaped strike pin ring 1 and a sheet metal stamped base plate 2. The two ends of the strike pin ring are riveting posts, and a riveting limiting ring is formed near the end of the riveting post. During the production process of the car door lock, the riveting posts at both ends of the U-shaped structure of the strike pin ring need to be inserted into two riveting holes on the base plate. Then, the two ends of the strike pin ring are riveted together by a riveting machine, thereby fixing the base plate and the two ends of the strike pin ring together together with the riveting limiting ring.

[0003] The current riveting method involves workers first inserting the striker ring into the slot of the fixture, then manually clamping and positioning it. Next, the base plate is placed on the fixture, with the rivet post of the striker ring inserted into the rivet hole of the base plate. The worker then holds the base plate while it is riveted on a riveting machine. This simple fixture-based riveting method results in low riveting efficiency and difficulty in guaranteeing riveting quality. It also easily leads to the base plate being placed backwards, resulting in defective riveted products. During riveting, the rivet limiting ring on the rivet post bears significant riveting pressure, making it prone to breakage and hindering the stable production of automotive door lock riveting. Utility Model Content

[0004] To overcome the above-mentioned defects, this utility model provides an automotive door lock riveting fixture that can ensure riveting quality, has high riveting efficiency, and high operational safety.

[0005] The technical solution adopted by this utility model to solve its technical problem is as follows: A riveting fixture for automotive door locks includes a base, a sliding plate, a shifting drive device, a fixed clamping block, a movable clamping block, a clamping drive device, and a riveting equipment control system. The base can be fixedly installed on the worktable of the riveting equipment. The sliding plate can be linearly slidably installed on the base. The fixed clamping block is fixedly installed on the sliding plate. The fixed clamping block includes a clamping arm extending in a vertical direction and a support arm extending in a horizontal direction. One side wall of the vertically extending clamping arm is a fixed clamping surface. A pin ring receiving groove matching the shape of the side wall of the pin ring to be riveted is formed on the fixed clamping surface. The upper side of the support arm on the fixed clamping block forms a... The cavity bottom surface supporting the lower end of the firing pin ring is provided. The movable clamping block is horizontally mounted on the slide plate and can slide towards the fixed clamping block. The movable clamping block can clamp or release the firing pin ring together with the fixed clamping surface of the fixed clamping block. The clamping drive device drives the movable clamping block to slide horizontally back and forth. The upper end surface of the clamping arm of the fixed clamping block and the upper end surface of the movable clamping block together form a base plate support surface for supporting the riveting surface of the base plate to be riveted. The shifting drive device drives the slide plate to slide back and forth along the straight line where the two riveting points of the firing pin ring are located, so that different riveting points are aligned with the riveting head of the riveting equipment. The riveting equipment control system can control the start and stop actions of the riveting equipment, the shifting drive device, and the clamping drive device.

[0006] As a further improvement of this utility model, a firing pin ring receiving groove matching the shape of the firing pin ring sidewall is also formed on the side wall of the movable clamping block facing the fixed clamping surface.

[0007] As a further improvement of this utility model, an anti-misoperation block is fixedly installed on the side wall of the fixed clamping block, the side wall of the movable clamping block, or the slide plate, and an anti-misoperation sensor is installed on the upper end face of the fixed clamping block, the upper end face of the movable clamping block, or the upper side of the slide plate.

[0008] When the base plate to be riveted is placed correctly, the misalignment block is separated from the edge of the base plate near the anti-misalignment block and does not contact each other, and the riveting surface of the base plate to be riveted is flat against the support surface of the base plate.

[0009] When the two asymmetrical sides of the base plate to be riveted are placed in opposite directions, the anti-misalignment block stops the bottom edge of the base plate to be riveted on the side closest to the anti-misalignment block, and makes a set gap exist between the riveting surface of the base plate to be riveted and the base plate support surface.

[0010] The error-proof sensor can sense the height position of the riveting surface of the base plate to be riveted and transmit its sensing information to the riveting equipment control system. The riveting equipment control system can determine whether the base plate is placed in the correct orientation based on the sensing information of the error-proof sensor and control whether the riveting equipment is started.

[0011] As a further improvement of this utility model, the clamping arm of the fixed clamping block is provided with at least two guide holes, which are symmetrically distributed on both sides of the firing pin ring receiving groove. The movable clamping block is provided with at least two guide posts, which are respectively inserted into the at least two guide holes for clamping and guiding.

[0012] As a further improvement of this utility model, the base is provided with a front limiting block and a rear limiting block. The two side walls of the sliding plate along its sliding direction are respectively stopped by the front limiting block and the rear limiting block. When the sliding plate contacts the front limiting block, one riveting point of the striking pin ring is directly opposite the riveting head of the riveting device. When the sliding plate contacts the rear limiting block, the other riveting point of the striking pin ring is directly opposite the riveting head of the riveting device.

[0013] As a further improvement of this utility model, a front position sensor and a rear position sensor are respectively installed on the front limit block and the rear limit block. The front position sensor and the rear position sensor can respectively sense that the slide is located at the front end position and the rear end position. The front position sensor and the rear position sensor communicate with the riveting equipment control system to transmit their sensing information.

[0014] As a further improvement of this utility model, two guide plates are fixedly installed on the base at parallel intervals, and slide tracks are formed on the opposite side walls of the two guide plates. The two sides of the slide plate are slidably inserted into the slide tracks of the two guide plates.

[0015] As a further improvement of this utility model, the displacement drive device includes a cylinder, a connecting plate and a universal joint fixedly mounted on the base plate. The connecting plate is fixedly connected to the slide plate, and the piston rod of the cylinder is connected to the connecting plate through the universal joint.

[0016] As a further improvement of this utility model, the fixed clamping block is also provided with a clamping sensing device. The clamping sensing device can sense the position information of the movable clamping block and transmit the sensed position information of the movable clamping block to the riveting equipment control system. The riveting equipment control system can determine whether the striking pin ring is clamped based on the sensing information of the clamping sensing device and control the clamping drive device to start and stop.

[0017] As a further improvement of this utility model, the base includes an upper base plate and a lower base plate. The lower base plate is provided with elongated mounting holes extending along the sliding direction of the slide plate and in a horizontal direction perpendicular to the sliding direction of the slide plate. The lower base plate is connected to the worktable of the riveting equipment by connecting bolts inserted into each of the elongated holes. The upper base plate is fixedly installed on the lower base plate, and the slide plate is slidably installed on the upper base plate. The upper base plate is also provided with negative pressure air holes at both ends along the sliding direction of the slide plate. The negative pressure air holes can negatively attract the slide plate during riveting, preventing it from sliding. A manual reversing valve is also installed on the upper base plate. The manual reversing valve can control the clamping drive device to switch between clamping and releasing states.

[0018] The beneficial effects of this utility model are as follows: This utility model controls the start and stop of the clamping drive device through the riveting equipment control system, thereby realizing the linear reciprocating sliding of the movable clamping block, which automatically clamps or releases the striking pin ring, avoiding manual clamping or releasing of the striking pin ring, improving the efficiency of striking pin ring positioning, and ensuring stable clamping and precise positioning of the striking pin ring. This is beneficial to ensuring riveting quality and preventing the striking pin ring from tilting during riveting, which could lead to unqualified dimensions of the finished product after riveting. This utility model has a horizontally extending support arm on the fixed clamping block, the upper side of which can support the bottom surface of the U-shaped structure of the striking pin ring, effectively dispersing the riveting pressure and avoiding stress concentration on the riveting pin. The present invention avoids the risk of breakage of the riveting limit ring by using a sliding plate to ensure that different riveting points are aligned with the riveting head of the riveting equipment for riveting, thus preventing the phenomenon of missing a riveting point. Furthermore, the present invention incorporates an anti-misalignment block based on the asymmetrical structure of the base plate. When the base plate is placed in the wrong direction, the anti-misalignment block raises the base plate, preventing the anti-misalignment sensor from sensing the base plate and thus preventing riveting. This effectively avoids the base plate being placed in the wrong direction, ensuring that the tension pin ring is correctly riveted to the base plate. The riveting process of the present invention is fully automated, with high riveting efficiency, requiring no manual operation, reducing the labor intensity of workers, and improving production safety. Attached Figure Description

[0019] Figure 1 This is a diagram showing the completed riveting of the firing pin ring and the base plate according to this utility model.

[0020] Figure 2 This is a diagram showing the positional status of the firing pin ring and the base plate on the fixed clamping block.

[0021] Figure 3 This is a perspective view of the present utility model;

[0022] Figure 4 This is a perspective view of the fixing clamping block of this utility model;

[0023] Figure 5 This is a diagram showing the bottom plate of this utility model being blocked by the anti-misalignment block.

[0024] Figure 6 This is a schematic diagram of the error-proof sensing principle of this utility model. Detailed Implementation

[0025] Example: A riveting fixture for automotive door locks includes a base, a sliding plate 3, a shifting drive device, a fixed clamping block 4, a movable clamping block 5, a clamping drive device 6, and a riveting equipment control system. The base can be fixedly installed on the worktable of the riveting equipment. The sliding plate 3 can be linearly slidably installed on the base. The fixed clamping block 4 is fixedly installed on the sliding plate 3. The fixed clamping block 4 includes a clamping arm extending in a vertical direction and a support arm extending in a horizontal direction. One side wall of the vertically extending clamping arm is a fixed clamping surface 41. A pin ring receiving groove 411 matching the shape of the side wall of the pin ring to be riveted is formed on the fixed clamping surface 41. The upper side of the support arm on the fixed clamping block 4 forms a shape that can support the lower end of the pin ring. The movable clamping block 5 is horizontally mounted on the slide plate 3, which is slidably mounted towards the fixed clamping block 4. The movable clamping block 5 can clamp or release the striker ring together with the fixed clamping surface 41 of the fixed clamping block 4. The clamping drive device 6 drives the movable clamping block 5 to slide horizontally back and forth. The upper end face of the clamping arm of the fixed clamping block 4 and the upper end face of the movable clamping block together form a base plate support surface for supporting the riveting surface of the base plate to be riveted. The shifting drive device drives the slide plate 3 to slide back and forth along the straight line where the two riveting points of the striker ring are located, so that different riveting points are aligned with the riveting head of the riveting equipment. The riveting equipment control system can control the start and stop actions of the riveting equipment, the shifting drive device and the clamping drive device 6.

[0026] During riveting, the firing pin ring is first placed in the firing pin ring receiving groove 411 of the fixed clamping block 4. The riveting posts on both sides of the firing pin ring are accommodated in the firing pin ring receiving groove 411. The bottom surface of the U-shaped structure of the firing pin ring is supported on the bottom surface 42 of the cavity. The clamping drive device 6 is activated, and the movable clamping block 5 moves towards the fixed clamping block 4 to fix and clamp the firing pin ring in the firing pin ring receiving groove 411. At this time, the tops of the two riveting posts of the firing pin ring extend above the base plate support surface formed by the fixed clamping block 4 or the movable clamping block 5. The riveting surface of the base plate is then placed flat on the base plate support surface. The riveting holes on the riveting surface of the plate are fitted onto two riveting posts. The riveting equipment is started, and the riveting head of the riveting equipment first rivets one of the riveting posts. Then, the shifting drive device is started, and the slide plate 3 slides horizontally so that the other riveting post is positioned directly opposite the riveting head of the riveting equipment. The riveting equipment is started again, and after riveting the other riveting post is completed, the riveting equipment and the shifting drive device are reset. The clamping drive device 6 drives the movable clamping block 5 to reset. At this time, the product after riveting can be taken out. The entire riveting process is controlled by the riveting equipment control system.

[0027] The movable clamping block 5 also has a firing pin ring receiving groove 411 on one side wall facing the fixed clamping surface 41, which matches the shape of the firing pin ring side wall. The firing pin ring receiving groove 411 is provided on the side walls of both the fixed clamping block 4 and the movable clamping block 5 to achieve full clamping and positioning of the firing pin ring and prevent displacement of the firing pin ring during riveting.

[0028] An anti-mistake block 7 is fixedly installed on the side wall of the fixed clamping block 4, the side wall of the movable clamping block 5, or the slide plate 3, and an anti-mistake sensor 71 is installed on the upper end face of the fixed clamping block 4, the upper end face of the movable clamping block 5, or the upper side face of the slide plate 3.

[0029] When the base plate to be riveted is placed correctly, the misalignment block and the edge of the base plate near the anti-misalignment block 7 are separated and do not contact each other, and the riveting surface of the base plate to be riveted is flat against the support surface of the base plate.

[0030] When the two asymmetrical sides of the base plate to be riveted are placed in opposite directions, the anti-misalignment block 7 stops the bottom edge of the base plate to be riveted on the side closest to the anti-misalignment block 7, and makes a set gap between the riveting surface of the base plate to be riveted and the base plate support surface.

[0031] The error-proof sensor 71 can sense the height position of the riveting surface of the base plate to be riveted and transmit its sensing information to the riveting equipment control system. The riveting equipment control system can determine whether the base plate is placed in the correct orientation based on the sensing information of the error-proof sensor 71 and control whether the riveting equipment is started.

[0032] Because the slide plate 3, fixed clamping block 4, or movable clamping block 5 has anti-misalignment blocks 7 on its sidewalls, when the base plate is placed in the correct orientation, the anti-misalignment blocks 7 do not interfere with the base plate, and the base plate can be placed horizontally on the base plate support surface, thus enabling normal riveting. When the base plate is placed in the wrong orientation, the side of the base plate with the protrusion rotates to the direction of the anti-misalignment block 7. At this time, the protrusion on the base plate presses on the anti-misalignment block 7, causing the base plate to be unable to be horizontally supported on the base plate support surface. The base plate is placed in an inclined state with one side higher than the other side. At this time, the anti-misalignment sensor 71... The base plate position information is transmitted to the control system, which then determines that the base plate is placed in the wrong direction. The riveting equipment cannot start at this point. An alarm can also be set to remind the worker. The error-proof sensor 71 is ideally a contact switch. When the riveting surface of the base plate contacts the base plate support surface, the contact switch is triggered. When the error-proofing block 7 lifts the base plate in the wrong direction, the lower side of the base plate cannot contact the contact switch, thus preventing it from being triggered. The riveting equipment control system determines whether the base plate is placed in the correct direction based on whether the contact switch has a signal. Alternatively, the error-proof sensor 71 can also be a through-beam fiber optic cable or a camera; these are equivalent replacement structures that are easily conceived by those skilled in the art based on this patent and fall within the scope of this patent.

[0033] The fixed clamping block 4 has at least two guide holes 43 on its clamping arm, which are symmetrically distributed on both sides of the firing pin ring receiving groove 411. The movable clamping block 5 has at least two guide posts, which are respectively inserted into the at least two guide holes 43 for clamping and guiding. When the movable clamping block 5 slides relative to the fixed clamping block 4, the guide posts and guide holes 43 guide the movable clamping block 5 to prevent misalignment.

[0034] The base is provided with a front limiting block 8 and a rear limiting block 9. The two side walls of the sliding plate 3 along its sliding direction are respectively stopped by the front limiting block 8 and the rear limiting block 9. When the sliding plate 3 contacts the front limiting block 8, one riveting point of the striking pin ring is directly opposite the riveting head of the riveting device. When the sliding plate 3 contacts the rear limiting block 9, the other riveting point of the striking pin ring is directly opposite the riveting head of the riveting device. By setting a front limit block 8 and a rear limit block 9 to restrict the sliding plate 3 in the sliding direction, when the sliding plate 3 slides forward and contacts the front limit block 8, the sliding plate 3 can no longer slide forward and it stabilizes in this position. At this time, a riveting post is directly opposite the riveting head of the riveting equipment, and the riveting of this riveting post can be realized. When the sliding plate 3 slides backward to the rear limit block 9 on its rear side, the sliding plate 3 can no longer slide backward and it stabilizes in this position. At this time, another riveting post is directly opposite the riveting head of the riveting equipment, and the riveting of the other riveting post can be realized. By using the front limit block and the rear limit block 9 to limit the sliding plate 3, the riveting position is ensured to be accurate.

[0035] A front position sensor 81 and a rear position sensor 91 are respectively installed on the front limit block 8 and the rear limit block 9. The front position sensor 81 and the rear position sensor 91 can sense whether the slide plate 3 is at the front end position and the rear end position, respectively. The front position sensor 81 and the rear position sensor 91 communicate with the riveting equipment control system to transmit their sensing information. By sensing whether the slide plate 3 has slid into place through the front position sensor 81 and the rear position sensor 91, the riveting equipment can be automatically controlled without manual control, resulting in high riveting efficiency.

[0036] Two guide plates 10 are fixedly installed parallel to each other on the base. The two guide plates 10 have slide tracks formed on their opposite side walls. The slide plate 3 is slidably inserted into the slide tracks of the two guide plates 10 on both sides. During the sliding process, the slide plate 3 is guided by the slide tracks on the side walls of the two guide plates 10 to ensure that the position of the riveting post is aligned with the position of the riveting head of the riveting equipment.

[0037] The shifting drive device includes a cylinder 11, a connecting plate 12, and a universal joint 13 fixedly mounted on the base plate. The connecting plate 12 is fixedly connected to the slide plate 3, and the piston rod of the cylinder 11 is connected to the connecting plate 12 through the universal joint 13. The cylinder 11 drives the slide plate 3 on the connecting plate 12 to slide back and forth through the universal joint. Even if there is a slight error in the sliding direction between the piston rod of the cylinder 11 and the slide plate 3, it will not affect the normal sliding of the slide plate 3.

[0038] The fixed clamping block 4 is also provided with a clamping sensing device 44. The clamping sensing device 44 can sense the position information of the movable clamping block 5. The clamping sensing device 44 can transmit the sensed position information of the movable clamping block 5 to the riveting equipment control system. The riveting equipment control system can determine whether the striking pin ring is clamped based on the sensing information of the clamping sensing device 44 and control the clamping drive device 6 to start and stop.

[0039] The clamping sensing device 44 senses the position of the movable clamping block 5 to determine whether the striking pin ring is clamped, thereby realizing automatic start and stop control of the riveting equipment. It also prevents the riveting of the base plate without clamping the striking pin ring. The clamping sensing device 44 can be a non-contact switch. The contact switch is triggered by the movable clamping block 5 or the side wall of the anti-misalignment block 7 installed on the movable clamping block 5 when the movable clamping block 5 clamps the striking pin ring. The clamping sensing device 44 can also be a pressure sensor to sense the pressure value between the movable clamping block 5 and the clamping drive device 6 to determine whether the movable clamping block 5 clamps the striking pin ring. This is an equivalent replacement structure that can be easily conceived by those skilled in the art based on this patent and is within the scope of protection of this patent.

[0040] The base includes an upper base plate 14 and a lower base plate 15. The lower base plate 15 has elongated mounting holes 151 extending along the sliding direction of the slide plate 3 and in a horizontal direction perpendicular to the sliding direction of the slide plate 3. The lower base plate 15 is connected to the worktable of the riveting equipment by connecting bolts inserted into each of the elongated holes. The upper base plate 14 is fixedly installed on the lower base plate 15. The slide plate 3 is slidably installed on the upper base plate 14. The upper base plate 14 also has negative pressure air holes 141 at both ends along the sliding direction of the slide plate 3. The negative pressure air holes 141 can negatively attract the slide plate 3 during riveting, preventing it from sliding. The upper base plate 14 is also equipped with a manual reversing valve 16, which can control the clamping drive device 6 to switch between clamping and releasing states.

[0041] The lower base plate 15 is used to fix the entire tooling on the workbench, and the upper base plate 14 is used to support the slide plate 3 and other parts. By setting a negative pressure air hole 141 on the upper base plate 14, the negative pressure sucks the slide plate 3 during riveting to prevent it from shifting during the riveting process. The manual reversing valve 16 can be manually opened to perform emergency treatment in case of failure.

Claims

1. A riveting fixture for automotive door locks, characterized in that: The system includes a base, a sliding plate (3), a shifting drive device, a fixed clamping block (4), a movable clamping block (5), a clamping drive device (6), and a riveting equipment control system. The base can be fixedly installed on the worktable of the riveting equipment. The sliding plate can be linearly slidably installed on the base. The fixed clamping block is fixedly installed on the sliding plate. The fixed clamping block includes a clamping arm extending in the vertical direction and a support arm extending in the horizontal direction. One side wall of the clamping arm extending vertically is a fixed clamping surface (41). A firing pin ring receiving groove (411) matching the shape of the side wall of the firing pin ring to be riveted is formed on the fixed clamping surface. The upper side of the support arm on the fixed clamping block forms a shape that can support the lower end of the firing pin ring. The bottom surface of the cavity (42) is where the movable clamping block is horizontally mounted on the slide plate in the direction of the fixed clamping block. The movable clamping block can clamp or release the striker ring together with the fixed clamping surface of the fixed clamping block. The clamping drive device drives the movable clamping block to slide horizontally back and forth. The upper end face of the clamping arm of the fixed clamping block and the upper end face of the movable clamping block together form a base plate support surface for supporting the riveting surface of the base plate to be riveted. The shift drive device drives the slide plate to slide back and forth along the straight line where the two riveting points of the striker ring are located to achieve different riveting points facing the riveting head of the riveting equipment. The riveting equipment control system can control the start and stop actions of the riveting equipment, the shift drive device and the clamping drive device.

2. The automotive door lock riveting fixture according to claim 1, characterized in that: The movable clamping block also has a firing pin ring receiving groove on one side wall facing the fixed clamping surface, which matches the shape of the firing pin ring side wall.

3. The automotive door lock riveting fixture according to claim 1, characterized in that: An anti-mistake block (7) is fixedly installed on the side wall of the fixed clamping block, the side wall of the movable clamping block, or the slide plate, and an anti-mistake sensor (71) is installed on the upper end face of the fixed clamping block, the upper end face of the movable clamping block, or the upper side face of the slide plate. When the base plate to be riveted is placed correctly, the anti-misalignment block is separated from the edge of the base plate near the anti-misalignment block and does not contact each other, and the riveting surface of the base plate to be riveted is flat against the supporting surface of the base plate. When the two asymmetrical sides of the base plate to be riveted are placed in opposite directions, the anti-misalignment block stops the bottom edge of the base plate to be riveted on the side closest to the anti-misalignment block, and makes a set gap exist between the riveting surface of the base plate to be riveted and the base plate support surface. The error-proof sensor can sense the height position of the riveting surface of the base plate to be riveted and transmit its sensing information to the riveting equipment control system. The riveting equipment control system can determine whether the base plate is placed in the correct orientation based on the sensing information of the error-proof sensor and control whether the riveting equipment is started.

4. The automotive door lock riveting fixture according to claim 1, characterized in that: The clamping arm of the fixed clamping block is provided with at least two guide holes (43), which are symmetrically distributed on both sides of the firing pin ring receiving groove. The movable clamping block is provided with at least two guide posts, which are respectively inserted into the at least two guide holes for clamping and guiding.

5. The automotive door lock riveting fixture according to claim 1, characterized in that: The base is provided with a front limiting block (8) and a rear limiting block (9). The two side walls of the sliding plate along its sliding direction are respectively stopped by the front limiting block and the rear limiting block. When the sliding plate contacts the front limiting block, one rivet point of the firing pin ring is directly opposite the riveting head of the riveting device. When the sliding plate contacts the rear limiting block, the other rivet point of the firing pin ring is directly opposite the riveting head of the riveting device.

6. The automotive door lock riveting fixture according to claim 5, characterized in that: The front limit block and the rear limit block are respectively equipped with a front position sensor (81) and a rear position sensor (91). The front position sensor and the rear position sensor can sense the position of the slide plate at the front end and the rear end, respectively. The front position sensor and the rear position sensor communicate with the riveting equipment control system to transmit their sensing information.

7. The automotive door lock riveting fixture according to claim 1, characterized in that: Two guide plates (10) are fixedly installed on the base at parallel intervals. Slides are formed on the opposite side walls of the two guide plates, and the two sides of the slide plate are slidably inserted into the slides of the two guide plates.

8. The automotive door lock riveting fixture according to claim 7, characterized in that: The shifting drive device includes a cylinder (11), a connecting plate (12), and a universal joint (13) fixedly mounted on the base plate. The connecting plate is fixedly connected to the slide plate, and the piston rod of the cylinder is connected to the connecting plate through the universal joint.

9. The automotive door lock riveting fixture according to claim 1, characterized in that: The fixed clamping block is also provided with a clamping sensing device (44). The clamping sensing device can sense the position information of the movable clamping block and transmit the sensed position information of the movable clamping block to the riveting equipment control system. The riveting equipment control system can determine whether the striking pin ring is clamped based on the sensing information of the clamping sensing device and control the clamping drive device to start and stop.

10. The automotive door lock riveting fixture according to claim 1 or 4, characterized in that: The base includes an upper base plate (14) and a lower base plate (15). The lower base plate is provided with elongated mounting holes (151) extending along the sliding direction of the slide plate and in a horizontal direction perpendicular to the sliding direction of the slide plate. The lower base plate is connected to the worktable of the riveting equipment by connecting bolts inserted into each of the elongated holes. The upper base plate is fixedly installed on the lower base plate. The slide plate is slidably installed on the upper base plate. The upper base plate is also provided with negative pressure air holes (141) at both ends along the sliding direction of the slide plate. The negative pressure air holes can negatively absorb the slide plate during riveting to prevent it from sliding. The upper base plate is also equipped with a manual reversing valve (16). The manual reversing valve can control the clamping drive device to switch between clamping and releasing states.

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