Automated Riveting Production Line for Automobile Lock Latch

Abstract

The present invention discloses an automatic riveting production line for automotive latches, which includes a workbench, a pier hook feeding mechanism for successively sending pier hooks to a first position, a bottom plate feeding mechanism for feeding bottom plates, a pier hook positioning and walking mechanism for transporting the pier hooks from the first position to a second position, a bottom plate assembly mechanism for assembling the bottom plates provided by the bottom plate feeding mechanism onto the pier hooks at the second position, a stamping and riveting die device for stamping and riveting the assembled pier hooks and bottom plates, an assembly handling mechanism for transporting the assembled pier hooks and bottom plates into the stamping and riveting die device, and a control system for controlling the operation of each mechanism. The whole process of the present invention does not require manual operation, realizing the full-automatic riveting production of latches, greatly reducing the labor cost and labor intensity of workers, and improving the production efficiency and the qualified rate of riveting.

Description

Technical Field

[0001] The present invention relates to the field of automated processing, and particularly to an automated riveting production line for automotive latches. Background Art

[0002] The press riveting production of automotive door latches is a key process to ensure the precision of the latches and also a key process to ensure the product performance and safety performance. The principle of riveting is to press and hold the bottom of the locking hook through a riveting device, and the material flows and extends at a fixed position on the base to form a permanent plastic deformation process of mutual embedding. The riveted joint has high tensile strength, high shear strength, and high dynamic fatigue strength, and meets the characteristics of appearance quality, one-time forming, and impact energy absorption.

[0003] The current production method is manual riveting, that is, workers manually assemble the pier hook and the bottom plate first, and then place the assembled parts on the riveting equipment for positioning. The riveting punch on the riveting equipment presses down to rivet the pier hook. This manual operation mode has a high labor intensity for workers, low production capacity and efficiency, and cannot meet the market demand. Summary of the Invention

[0004] In order to overcome the above defects, the present invention provides an automated riveting production line for automotive latches, which can automatically load, rivet, and unload the pier hook and the bottom plate, saving labor and production.

[0005] The technical solution adopted by the present invention to solve its technical problems: an automated riveting production line for automotive latches, including a workbench, a pier hook feeding mechanism, a bottom plate feeding mechanism, a pier hook positioning and walking mechanism, a bottom plate assembly mechanism, an assembly handling mechanism, a stamping and riveting die device, and a control system. The pier hook positioning and walking mechanism is installed on the workbench and can reciprocate between a first position and a second position. A pier hook positioning mechanism for stopping and positioning the pier hook is provided on the pier hook positioning and walking mechanism. The pier hook feeding mechanism can send the pier hook to the pier hook positioning and walking mechanism located at the first position for positioning. The bottom plate assembly mechanism can grab the bottom plate supplied by the bottom plate feeding mechanism and place it on the pier hook positioning and walking mechanism located at the second position to be socketed and assembled with the pier hook. The stamping and riveting die device is fixedly installed on the workbench. A latch positioning mechanism is provided on the lower die of the stamping and riveting die device, and the latch positioning mechanism can stop and position the assembly of the pier hook and the bottom plate. A riveting punch is provided on the upper die of the stamping die, and the riveting punch can perform stamping and riveting on the end of the pier hook extending out of the upper side of the bottom plate. The assembly handling mechanism can transport the pier hook-bottom plate assembly on the pier hook positioning and walking mechanism located at the second position into the latch positioning mechanism of the stamping and riveting die device, and the assembly handling mechanism can also transport the riveted latch in the latch positioning mechanism of the stamping and riveting die device to the outside of the stamping die.

[0006] As a further improvement of the present invention, a first linear slideway is provided on the workbench. The first linear slideway passes through a first position, a second position and a latch positioning mechanism of the lower die of the stamping die. The pier hook can linearly slide along the first linear slideway for feeding, and the pier hook positioning walking mechanism and the assembly handling mechanism can respectively move the pier hook and the assembly of the pier hook and the bottom plate to slide along the first linear slideway.

[0007] As a further improvement of the present invention, the pier hook positioning walking mechanism includes a left - right pier hook positioning slider, a front - rear slider of the horizontal pier hook positioning slider, a pier hook positioning fork, a left - right driving device for pier hook positioning and a front - rear driving device for pier hook positioning. The left - right pier hook positioning slider is installed on the workbench so as to be able to linearly reciprocate along the extending direction of the first linear slideway. The front - rear slider of the horizontal pier hook positioning slider is installed on the left - right pier hook positioning slider so as to be able to reciprocate along a horizontal plane perpendicular to the extending direction of the first linear slideway. The pier hook positioning fork is fixedly installed on the front - rear slider of the horizontal pier hook positioning slider. The pier hook positioning fork can be inserted into the U - shaped structure of the pier hook. The left - right driving device for pier hook positioning and the front - rear driving device for pier hook positioning respectively drive the left - right pier hook positioning slider and the front - rear slider of the horizontal pier hook positioning slider to reciprocate.

[0008] As a further improvement of the present invention, a pier hook clamping and positioning mechanism is further provided at the second position of the workbench. The pier hook clamping and positioning mechanism includes a pier hook positioning slider that slides along a direction perpendicular to the extending direction of the first linear slideway, a driving device for the pier hook positioning slider, a pier hook positioning jaw that can move relatively along the extending direction of the first linear slideway, and a clamping driving device for the pier hook. The driving device for the pier hook positioning slider drives the pier hook positioning slider to reciprocate to reach the second position or withdraw from the second position. The pier hook positioning jaw and the clamping driving device for the pier hook are installed on the pier hook positioning slider. The clamping driving device for the pier hook drives the pier hook positioning jaw to clamp or release the pier hook at the second position.

[0009] As a further improvement of the present invention, the pier hook feeding mechanism includes a pier hook feeding vibration plate that can discharge the pier hook in the required order, a second linear slide, a mobile slide, an incoming material sensing device, a mobile slide driving device, a pushing slider and a pushing driving device. One end of the second linear slide is docked with the discharge port of the pier hook feeding vibration plate, the extension direction of the second linear slide is parallel to the extension direction of the first linear slide and staggered, the transfer slide can slide back and forth along the extension direction perpendicular to the first linear slide, and the two ends of the mobile slide can respectively align with the first linear slide and the second linear slide. The cam is connected to the sliding door, and the side wall of the movable slide can block the opening in the discharge direction of the second straight channel. The incoming material sensing device can sense the pier hook located in the movable slide. The incoming material sensing device is electrically connected and communicates with the control system. The movable slide driving device drives the movable slide to reciprocate. The pushing slide block can be installed on the workbench to slide back and forth along the extension direction of the first straight slide. The pushing slide block can push the pier hook in the movable slide into the first position of the first straight slide. The pushing driving device drives the pushing slide block to reciprocate. The control system controls the start and stop actions of the movable slide driving device and the pushing driving device.

[0010] As a further improvement of the present invention, a pier hook sorting moving mechanism is further provided at the end of the second straight slide, and the pier hook sorting moving mechanism includes a pier hook sorting insert, a pier hook sorting slider, a pier hook sorting moving slider, a pier hook sorting slider driving device and a pier hook sorting moving slider driving device. A blocking piece is provided on the side wall of the first straight slide toward one end of the moving slide, and the blocking piece can block the opening of the moving slide toward one end of the first straight slide so that the pier hook inside the moving slide can be discharged from the moving slide outlet only when the moving slide is docked with the first straight slide, and the pier hook sorting moving slider can move along the second straight slide The pier hook sorting slider is installed on the workbench to slide back and forth in the extension direction. The pier hook sorting moving slider driving device drives the pier hook sorting moving slider to slide back and forth. The pier hook sorting slider can slide back and forth along the extension direction perpendicular to the second straight slide and is installed on the pier hook sorting moving slider. The pier hook sorting plug is fixedly installed on the pier hook sorting slider. The pier hook sorting plug can be inserted into the pier hook U-shaped structure at the end of the second straight slide as the pier hook sorting slider slides. The pier hook sorting slider driving device drives the pier hook sorting slider to reciprocate. The control system controls the start and stop actions of the pier hook sorting slider driving device and the pier hook sorting moving slider driving device.

[0011] As a further improvement of the present invention, the bottom plate feeding mechanism includes a bottom plate loading vibrating bowl capable of arranging the bottom plates in sequence as required, a bottom plate discharging slide rail, a bottom plate distributing slider, and a bottom plate distributing driving device. The feeding end of the bottom plate discharging slide rail is aligned and connected to the discharging port of the bottom plate loading vibrating bowl. The bottom plate distributing slider is installed on the workbench so as to be able to reciprocate along the direction perpendicular to the extension direction of the bottom plate discharging slide rail. An opening groove capable of accommodating only one bottom plate is provided on the bottom plate distributing slider. The opening groove can be aligned and connected to the discharging end of the bottom plate discharging slide rail or misaligned to close the discharging end of the bottom plate discharging slide rail as the bottom plate distributing slider moves. A bottom plate sensing device is installed in the opening groove of the bottom plate distributing slider. The bottom plate sensing device can sense the bottom plate entering the opening groove. The bottom plate sensing device is electrically connected and communicates with the control system. The control system controls the start and stop actions of the bottom plate distributing driving device.

[0012] As a further improvement of the present invention, the bottom plate assembling mechanism includes a three-axis sliding manipulator, a bottom plate gripper, and a bottom plate clamping driving device. The moving end of the three-axis sliding manipulator can move to any point within a set three-dimensional space range. The bottom plate gripper is installed on the moving end of the three-axis sliding manipulator. The bottom plate clamping driving device drives the bottom plate gripper to clamp or release the bottom plate. The control system controls the start and stop actions of the three-axis sliding manipulator and the bottom plate clamping driving device.

[0013] As a further improvement of the present invention, a pier hook shaping device is further provided on the workbench. The pier hook shaping device includes a pier hook shaping lifting slider, a pier hook shaping driving device, and a pier hook shaping needle. A shaping start sensing device is provided at the feeding end of the first linear slideway. The shaping start sensing device can sense the pier hook entering the first linear slideway. The shaping start sensing device is electrically connected and communicates with the control system. The control system controls the start and stop actions of the pier hook shaping driving device. The pier hook shaping driving device drives the pier hook shaping lifting slider to move up and down on the workbench. The pier hook shaping needle is fixedly installed on the pier hook shaping lifting slider. The pier hook shaping needle is a conical structure with a smaller diameter at the lower end than at the upper end. The pier hook shaping needle can be inserted into the riveting hole at the upper end of the pier hook to be flanged and riveted.

[0014] As a further improvement of the present invention, an inclined slideway is fixedly installed on the outer side of the stamping and riveting die equipment along the conveying direction of the first linear slideway. The high-end of the inclined slideway is connected to the end of the first linear slideway for conveying, and a material collecting box is arranged below the low-end of the inclined slideway. The assembled body handling mechanism includes a horizontal handling slider, a feeding slider, a cross bar, handling forks, a horizontal handling driving device and a feeding driving device. The horizontal handling slider is installed on the workbench so as to be able to reciprocate along the extending direction of the first linear slideway. The feeding slider is installed on the horizontal handling slider so as to be able to reciprocate along the direction perpendicular to the extending direction of the first linear slideway. The cross bar extending along the extending direction of the first linear slideway is fixedly installed on the feeding slider. At least two handling forks are fixedly installed on the cross bar at intervals along the extending direction of the first linear slideway. The handling fork includes a central insert piece that can be inserted into the U-shaped structure of the pier hook and a U-shaped slot that can stop on both sides of the bottom plate along the handling direction. The control system controls the start and stop actions of the horizontal handling driving device and the feeding driving device, and then transports the assembled buckle at the second position into the stamping die for stamping and transports the stamped product into the inclined slideway for discharging.

[0015] The beneficial effects of the present invention are as follows: The present invention realizes the automatic feeding of the pier hook and the bottom plate through the pier hook feeding mechanism and the bottom plate feeding mechanism, and automatically assembles the pier hook and the bottom plate together through the cooperation of the pier hook positioning and walking mechanism and the bottom plate assembly mechanism. The assembled body handling mechanism sends the assembled buckle into the stamping and riveting die equipment for stamping and riveting, and transports the riveted product out of the stamping die for automatic material collection. The whole process of the present invention does not require manual operation, realizes the fully automatic riveting production of the buckle, greatly reduces the labor cost and the labor intensity of workers, and improves the production efficiency and the qualified rate of riveting. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is the first three-dimensional view of the present invention;

[0017] Figure 2 is Figure 1 the enlarged view of part A in

[0018] Figure 3 is the second three-dimensional view of the present invention;

[0019] Figure 4 is Figure 3 the enlarged view of part B in

[0020] Figure 5 is the third three-dimensional view of the present invention;

[0021] Figure 6 is the front view of the present invention;

[0022] Figure 7 is the top view of the present invention;

[0023] Figure 8 is Figure 7 the enlarged view of part C in

[0024] Figure 9 is Figure 7 the enlarged view of part D in

[0025] Figure 10 the bottom view of the present invention;

[0026] Figure 11 the left view of the present invention;

[0027] Figure 12 the right view of the present invention. Detailed implementation manners

[0028] Embodiment: An automatic riveting production line for an automobile latch includes a workbench 1, a pier hook feeding mechanism 2, a bottom plate feeding mechanism 3, a pier hook positioning and walking mechanism 4, a bottom plate assembling mechanism 5, an assembly handling mechanism 6, a stamping and riveting die device 7, and a control system 8. The pier hook positioning and walking mechanism 4 is installed on the workbench 1 and can reciprocate between a first position and a second position. A pier hook positioning mechanism for stopping and positioning the pier hook 20 is provided on the pier hook positioning and walking mechanism 4. The pier hook feeding mechanism 2 can send the pier hook to the pier hook positioning and walking mechanism 4 at the first position for positioning. The bottom plate assembling mechanism 5 can grab the bottom plate 30 supplied by the bottom plate feeding mechanism 3 and place it on the pier hook positioning and walking mechanism 4 at the second position to be sleeved and assembled with the pier hook. The stamping and riveting die device 7 is fixedly installed on the workbench 1. A latch positioning mechanism is provided on the lower die of the stamping and riveting die device 7. The latch positioning mechanism can stop and position the assembly of the pier hook and the bottom plate. A riveting punch is provided on the upper die of the stamping die. The riveting punch can perform stamping and riveting on the end of the pier hook extending out of the upper side of the bottom plate. The assembly handling mechanism 6 can transport the pier hook-bottom plate assembly on the pier hook positioning and walking mechanism 4 at the second position into the latch positioning mechanism of the stamping and riveting die device 7, and the assembly handling mechanism 6 can also transport the latches completed by riveting in the latch positioning mechanism of the stamping and riveting die device 7 to the outside of the stamping die.

[0029] During production, the pier hooks 20 and the bottom plates 30 are respectively fed by the pier hook feeding mechanism 2 and the bottom plate feeding mechanism 3. The pier hook feeding mechanism 2 sends one or two or more pier hooks 20 to the first position at a time. After the one or two or more pier hooks 20 are positioned by the pier hook positioning and walking mechanism 4, the pier hooks 20 are sent to the second position. At the same time, the bottom plate assembling mechanism 5 assembles one or two or more bottom plates 30 sent to the designated position onto the pier hooks 20 at the second position to form the to-be-riveted lock. Then, the assembled to-be-riveted locks are sent into the stamping and riveting die equipment 7 one by one by the assembled body handling mechanism 6. The stamping and riveting die equipment 7 performs stamping and riveting on the pier hooks 20 of the lock, so that the pier hooks 20 and the bottom plates 30 are riveted together to form the finished lock. The finished locks after riveting are carried out of the stamping and riveting die equipment 7 by the assembled body handling mechanism 6 to realize automatic material collection. This application realizes automatic feeding, automatic assembly, automatic riveting and automatic material collection of the pier hooks 20 and the lock hooks. The entire production process of the lock does not require manual participation, greatly reducing the labor cost of lock production, improving the production efficiency of the lock, and having good consistency in assembly and riveting during the entire production process of the lock, which is beneficial to subsequent assembly and use on the vehicle.

[0030] A first linear slideway 11 is provided on the workbench 1. The first linear slideway 11 passes through the first position, the second position and the lock positioning mechanism of the lower die of the stamping die. The pier hook can be fed by sliding linearly along the first linear slideway 11. The pier hook positioning and walking mechanism 4 and the assembled body handling mechanism 6 can respectively move the pier hook and the assembly of the pier hook and the bottom plate to slide along the first linear slideway 11.

[0031] By arranging the first linear slideway 11 on the workbench 1, while the pier hook is positioned front and back on the first slideway, it is moved forward by the pier hook positioning and walking mechanism 4, realizing the positioning and handling of the pier hook. After the pier hook and the bottom plate are assembled together, the assembled body handling mechanism 6 moves the assembly of the pier hook and the bottom plate forward, and finally enters the stamping die for stamping and riveting. After the riveting is completed, it is moved away from the stamping die by the assembled body handling mechanism 6. During the whole process, the pier hook is positioned and conveyed within the first linear slideway 11, with a simple structure, convenient positioning and conveying. In addition, the pier hook can also be clamped and positioned by a carrier and carried by a manipulator, which is an equivalent replacement structure that can be easily thought of by those skilled in the art according to this patent and belongs to the protection scope of this patent.

[0032] The pier hook positioning and traveling mechanism 4 includes left and right pier hook positioning sliders 41, front and rear sliders 42 of the horizontal slider for pier hook positioning, a pier hook positioning fork 43, a left and right driving device 44 for pier hook positioning, and a front and rear driving device 45 for pier hook positioning. The left and right pier hook positioning sliders 41 are installed on the workbench 1 so as to be able to linearly reciprocate along the extension direction of the first linear slideway 11. The front and rear sliders 42 of the horizontal slider for pier hook positioning are installed on the left and right pier hook positioning sliders 41 so as to be able to reciprocate horizontally along the plane perpendicular to the extension direction of the first linear slideway 11. The pier hook positioning fork 43 is fixedly installed on the front and rear sliders 42 of the horizontal slider for pier hook positioning. The pier hook positioning fork 43 can be inserted into the U-shaped structure of the pier hook. The left and right driving device 44 for pier hook positioning and the front and rear driving device 45 for pier hook positioning respectively drive the left and right pier hook positioning sliders 41 and the front and rear sliders 42 of the horizontal slider for pier hook positioning to reciprocate. The pier hook positioning fork 43 of the pier hook positioning and traveling mechanism 4 is inserted into the U-shaped structure of the pier hook, realizing the positioning of the pier hook. When the left and right pier hook positioning sliders 41 slide, the pier hook is fed along with the left and right sliding. The front end of the pier hook positioning fork 43 is preferably chamfered to facilitate quick insertion into the U-shaped structure of the pier hook. In addition, the pier hook positioning and traveling mechanism 4 can also realize the positioning of the pier hook through a clamping device.

[0033] The workbench 1 is also provided with a pier hook clamping and positioning mechanism 9 at the second position. The pier hook clamping and positioning mechanism 9 includes a pier hook positioning slider 91 that slides along the direction perpendicular to the extension direction of the first linear slideway 11, a driving device 92 for the pier hook positioning slider, a pier hook positioning jaw that can move relative to each other along the extension direction of the first linear slideway 11, and a clamping driving device for the pier hook. The driving device 92 for the pier hook positioning slider drives the pier hook positioning slider 91 to reciprocate to reach the second position or withdraw from the second position. The pier hook positioning jaw and the clamping driving device for the pier hook are installed on the pier hook positioning slider 91. The clamping driving device for the pier hook drives the pier hook positioning jaw to clamp or release the pier hook at the second position. Before the pier hook is assembled with the bottom plate, it is clamped and fixed in position by the pier hook clamping and positioning mechanism 9 at the second position to ensure that the pier hook is in an accurate position. At this time, the bottom plate can be accurately and smoothly assembled onto the pier hook to avoid assembly failure caused by inaccurate pier hook position.

[0034] The hook feeding mechanism 2 includes a hook feeding vibration plate 21, a second linear slide 22, a mobile slide 23, an incoming material sensing device, a mobile slide driving device 24, a pushing slider 25 and a pushing driving device 26, one end of the second linear slide 22 is connected to the discharge port of the hook feeding vibration plate 21, the extension direction of the second linear slide 22 is parallel to the extension direction of the first linear slide 11, the transfer slide can slide back and forth along the extension direction perpendicular to the first linear slide 11, and the two ends of the mobile slide 23 can be aligned with the first linear slide 11 and the second linear slide 22 respectively, and the moving slide 23 can be connected with the first linear slide 11 and the second linear slide 22 at one end. The side wall of the movable slide 23 can block the opening in the discharge direction of the second straight mutual channel. The incoming material sensing device can sense the pier hook located in the movable slide 23. The incoming material sensing device is electrically connected and communicated with the control system 8. The movable slide drive device 24 drives the movable slide 23 to move back and forth. The pushing slider 25 can be installed on the workbench 1 to slide back and forth along the extension direction of the first straight slide 11. The pushing slider 25 can push the pier hook in the movable slide 23 into the first position of the first straight slide. The pushing drive device 26 drives the pushing slider 25 to move back and forth. The control system 8 controls the start and stop actions of the movable slide drive device 24 and the pushing drive device 26.

[0035] A vibrating disk is used to arrange the pier hooks so that all the pier hooks are arranged and output in the same state. After the pier hooks are output, they enter the second straight slide 22 and move forward in a straight line along the second straight slide 22. When the moving slide 23 is aligned and connected with the second straight slide 22, the pier hook at the end of the second straight slide 22 enters the moving slide 23. After being sensed by the incoming material sensing device, the moving slide 23 moves forward a distance. At this time, the moving slide 23 is staggered with the second straight slide 22 and the exit of the second straight slide 22 is closed. The moving slide 23 is aligned and connected with the first straight slide 11 at this time. The pier hook in the moving slide 23 is pushed into the first straight slide 11 by the pushing slider 25. In order to push the pier hook forward smoothly and not damage the pier hook, it is best to form a V-shaped head on the pushing slider 25. When pushing the material, the pier hook is pushed forward in the V-shaped head.

[0036] At the end of the second linear slideway 22, there is also a pier hook sorting and moving mechanism 27. The pier hook sorting and moving mechanism 27 includes a pier hook sorting insert 271, a pier hook sorting slider 272, a pier hook sorting moving slider 273, a pier hook sorting slider driving device 274, and a pier hook sorting moving slider driving device 275. On the side wall of one end of the first linear slideway 11 facing the moving slideway 23, there is a blocking piece 276. The blocking piece 276 can block the opening of the moving slideway 23 at one end facing the first linear slideway 11, so that only when the moving slideway 23 is docked with the first linear slideway 11, the pier hooks inside it can be discharged from the outlet of the moving slideway 23. The pier hook sorting moving slider 273 is installed on the workbench 1 so as to reciprocate along the extending direction of the second linear slideway 22. The pier hook sorting moving slider driving device 275 drives the pier hook sorting moving slider 273 to reciprocate. The pier hook sorting slider 272 is installed on the pier hook sorting moving slider 273 so as to reciprocate along the direction perpendicular to the extending direction of the second linear slideway 22. The pier hook sorting insert 271 is fixedly installed on the pier hook sorting slider 272. As the pier hook sorting insert 271 slides with the pier hook sorting slider 272, it can be inserted into the U-shaped structure of the pier hook at the end of the second linear slideway 22. The pier hook sorting slider driving device 274 drives the pier hook sorting slider 272 to reciprocate. The control system 8 controls the start and stop actions of the pier hook sorting slider driving device 274 and the pier hook sorting moving slider driving device 275.

[0037] When the pier hook reaches the end of the second linear slideway 22, the pier hook sorting insert 271 slides forward with the pier hook sorting slider 272 and is inserted into the U-shaped structure of the pier hook to realize positioning with the pier hook at the end of the second linear slideway 22. Then, the pier hook sorting insert 271 slides towards the moving slideway 23 with the pier hook sorting moving slider 273 and is finally sent into the moving slideway 23. The pier hook sorting insert 271 can be one, or two or more arranged at intervals. In this way, one, two or more pier hooks can be sorted out from the second linear slideway 22 and sent into the moving slideway 23. In this way, the pier hook can be accurately sent into the moving slideway 23, and the sorting and feeding of one or more pier hooks can be accurately realized. In addition, the outlet of the second linear slideway 22 can also be intermittently cut off and blocked, so as to realize the sorting and discharging of one or more pier hooks.

[0038] The bottom plate feeding mechanism 3 includes a bottom plate loading vibrating disk 31 capable of sequentially arranging bottom plates as required, a bottom plate discharging slide rail 32, a bottom plate distributing slider 33, and a bottom plate distributing driving device 34. The feeding end of the bottom plate discharging slide rail 32 is aligned and connected to the discharging port of the bottom plate loading vibrating disk 31. The bottom plate distributing slider 33 is installed on the workbench 1 and can reciprocally slide along a direction perpendicular to the extending direction of the bottom plate discharging slide rail 32. An opening groove capable of accommodating only one bottom plate is provided on the bottom plate distributing slider 33. As the bottom plate distributing slider 33 moves, the opening groove can be aligned with the discharging end of the bottom plate discharging slide rail 32 or misaligned to close the discharging end of the bottom plate discharging slide rail 32. A bottom plate sensing device is installed in the opening groove of the bottom plate distributing slider 33. The bottom plate sensing device can sense the bottom plate entering the opening groove, and the bottom plate sensing device is electrically connected and communicates with the control system 8. The control system 8 controls the start and stop actions of the bottom plate distributing driving device 34.

[0039] The bottom plates are automatically sorted and discharged by the vibrating disk. The bottom plates are sequentially discharged from the bottom plate discharging slide rail 32, and the frontmost bottom plate will enter the opening groove of the bottom plate distributing slider 33. The bottom plate slider can have one opening groove or two or more opening grooves arranged at intervals. By the intermittent linear sliding of the bottom plate distributing slider 33, each opening groove can be respectively aligned with the bottom plate discharging slide rail 32. In this way, multiple bottom plates can be sorted and discharged simultaneously at one time, which is convenient for the bottom plate assembling mechanism 5 to smoothly pick up the bottom plates. In addition to using the vibrating disk for feeding, other structures can also be used for feeding, such as forming a gap with the thickness of one bottom plate between the material bin and the workbench 1, and then pushing the bottom plate at the bottom of the material bin to a specified position through a pushing structure, thereby realizing the feeding of the bottom plates. This is an equivalent replacement structure that can be easily thought of by those skilled in the art according to this patent and belongs to the protection scope of this patent.

[0040] The bottom plate assembling mechanism 5 includes a three-axis sliding manipulator, a bottom plate gripper, and a bottom plate clamping driving device. The moving end of the three-axis sliding manipulator can move to any point within a set three-dimensional space range. The bottom plate gripper is installed on the moving end of the three-axis sliding manipulator. The bottom plate clamping driving device drives the bottom plate gripper to clamp or release the bottom plate. The control system 8 controls the start and stop actions of the three-axis sliding manipulator and the bottom plate clamping driving device. By using the manipulator to grab the bottom plates for assembly, the bottom plate assembly is efficient and accurate. In addition, the bottom plate can also be pushed from the discharging position of the bottom plate feeding mechanism 3 to directly above the second position, and a vertical channel is formed directly above the second position. The bottom plate slides along the vertical channel and automatically falls to be sleeved on the pier hook after falling. This structure also realizes the automatic assembly of the bottom plate and the pier hook. This is an equivalent replacement structure that can be easily thought of by those skilled in the art according to this patent and belongs to the protection scope of this patent.

[0041] A pier hook shaping device 10 is further provided on the workbench 1. The pier hook shaping device 10 includes a pier hook shaping lifting slider 101, a pier hook shaping driving device 102, and a pier hook shaping needle 103. A shaping start sensing device is provided at the feeding end of the first linear slideway 11. The shaping start sensing device can sense the pier hook entering the first linear slideway 11, and is electrically connected and communicated with the control system 8. The control system 8 controls the start and stop actions of the pier hook shaping driving device 102. The pier hook shaping driving device 102 drives the pier hook shaping lifting slider 101 to move up and down on the workbench 1. The pier hook shaping needle 103 is fixedly installed on the pier hook shaping lifting slider 101. The pier hook shaping needle 103 is a conical structure with a smaller diameter at the lower end than at the upper end. The pier hook shaping needle 103 can be inserted into the riveting hole at the upper end of the pier hook to be flanged and riveted. After the pier hook is sent into the first linear slideway 11, it is first shaped by the pier hook shaping device 10 to ensure that the pier hook is smoothly flanged and riveted during stamping and riveting, preventing the riveting from being insufficiently firm.

[0042] An inclined slideway 71 is further fixedly installed outside the stamping and riveting die equipment 7 along the conveying direction of the first linear slideway 11. The higher end of the inclined slideway 71 is connected to the conveying end of the first linear slideway 11. A receiving box 72 is provided below the lower end of the inclined slideway 71. The assembled body handling mechanism 6 includes a horizontal handling slider 61, a feeding slider 62, a cross bar 63, a handling fork 64, a horizontal handling driving device 65, and a feeding driving device 66. The horizontal handling slider 61 is installed on the workbench 1 so as to be able to reciprocate along the extending direction of the first linear slideway 11. The feeding slider 62 is installed on the horizontal handling slider 61 so as to be able to reciprocate along the direction perpendicular to the extending direction of the first linear slideway 11. The cross bar 63 extending along the extending direction of the first linear slideway 11 is fixedly installed on the feeding slider 62. At least two handling forks 64 are fixedly installed on the cross bar 63 at intervals along the extending direction of the first linear slideway 11. The handling fork 64 includes a central insert piece that can be inserted into the U-shaped structure of the pier hook and a U-shaped slot that can stop at both sides of the bottom plate along the handling direction. The control system 8 controls the start and stop actions of the horizontal handling driving device 65 and the feeding driving device 66, and then transports the assembled lock at the second position into the stamping die for stamping and transports the stamped product into the inclined slideway 71 for discharging. Through the front, rear, left, and right movement of the handling fork 64, the assembled lock is sent into the stamping and riveting fixture, and at the same time, the riveted product is sent out of the stamping and riveting die equipment 7 and sent into the receiving box 72 through the inclined slideway 71 for automatic material collection, without manual operation, and the structure is simple and the handling cost is low. In addition, a manipulator can also be used to realize the handling of the lock to be riveted, which is an equivalent replacement structure that can be easily thought of by those skilled in the art according to this application and also belongs to the protection scope of this application.

Claims

1. An automatic riveting production line for automobile latches, characterized in that: It includes a workbench (1), a pier hook feeding mechanism (2), a bottom plate feeding mechanism (3), a pier hook positioning and traveling mechanism (4), a bottom plate assembling mechanism (5), an assembled body handling mechanism (6), a stamping and riveting die device (7) and a control system (8). The pier hook positioning and traveling mechanism is installed on the workbench and can reciprocate between a first position and a second position. A pier hook positioning mechanism for stopping and positioning the pier hook (20) is provided on the pier hook positioning and traveling mechanism. The pier hook feeding mechanism can send the pier hook to the pier hook positioning and traveling mechanism located at the first position for positioning. The bottom plate assembling mechanism can grab the bottom plate (30) supplied by the bottom plate feeding mechanism and place it on the pier hook positioning and traveling mechanism located at the second position to be sleeved and assembled with the pier hook. The stamping and riveting die device is fixedly installed on the workbench. A buckle positioning mechanism is provided on the lower die of the stamping and riveting die device. The buckle positioning mechanism can stop and position the assembled body of the pier hook and the bottom plate. A riveting punch is provided on the upper die of the stamping die. The riveting punch can perform stamping and riveting on the end of the pier hook extending out of the upper side of the bottom plate. The assembled body handling mechanism can transport the assembled body of the pier hook and the bottom plate on the pier hook positioning and traveling mechanism located at the second position into the buckle positioning mechanism of the stamping and riveting die device. The assembled body handling mechanism can also transport the buckles completed by riveting in the buckle positioning mechanism of the stamping and riveting die device to the outside of the stamping die. A first linear slideway (11) is provided on the workbench. The first linear slideway passes through the first position, the second position and the buckle positioning mechanism of the lower die of the stamping die. The pier hook can be linearly slid for feeding along the first linear slideway. The pier hook positioning and traveling mechanism and the assembled body handling mechanism can respectively push and move the pier hook and the assembled body of the pier hook and the bottom plate to slide along the first linear slideway. The pier hook positioning and traveling mechanism includes a left and right pier hook positioning slider (41), a front and rear slider of the horizontal pier hook positioning slider (42), a pier hook positioning fork (43), a left and right driving device for pier hook positioning (44) and a front and rear driving device for pier hook positioning (45). The left and right pier hook positioning slider is installed on the workbench and can linearly reciprocate along the extending direction of the first linear slideway. The front and rear slider of the horizontal pier hook positioning slider is installed on the left and right pier hook positioning slider and can reciprocate on the horizontal plane perpendicular to the extending direction of the first linear slideway. The pier hook positioning fork is fixedly installed on the front and rear slider of the horizontal pier hook positioning slider. The pier hook positioning fork can be inserted into the U-shaped structure of the pier hook. The left and right driving device for pier hook positioning and the front and rear driving device for pier hook positioning respectively drive the left and right pier hook positioning slider and the front and rear slider of the horizontal pier hook positioning slider to reciprocate. A pier hook shaping device (10) is also provided on the workbench. The pier hook shaping device includes a pier hook shaping lifting slider (101), a pier hook shaping driving device (102) and a pier hook shaping needle (103). The pier hook shaping needle is fixedly installed on the pier hook shaping lifting slider. The pier hook shaping needle is a conical structure with a smaller diameter at the lower end and a larger diameter at the upper end. The pier hook shaping needle can be inserted into the riveting hole at the upper end of the pier hook to be flanged and riveted.

2. The automated riveting production line for automotive latches according to claim 1, characterized in that: The workbench is further provided with a pier hook clamping and positioning mechanism (9) at the second position, the pier hook clamping and positioning mechanism comprising a pier hook positioning slider (91) sliding along the extension direction of the vertical first linear slide, a pier hook positioning slider driving device (92), a pier hook positioning claw capable of relative movement along the extension direction of the first linear slide, and a pier hook clamping driving device, the pier hook positioning slider driving device drives the pier hook positioning slider to slide back and forth to reach the second position or exit the second position, the pier hook positioning claw and the pier hook clamping driving device are installed on the pier hook positioning slider, and the pier hook clamping driving device drives the pier hook positioning claw to clamp or release the pier hook at the second position.

3. The automated riveting production line for automotive latches according to claim 1, wherein: The hook feeding mechanism comprises a hook feeding vibration plate (21) capable of discharging the hooks in a required order, a second linear slide (22), a movable slide (23), an incoming material sensing device, a movable slide driving device (24), a material pushing slider (25) and a material pushing driving device (26), one end of the second linear slide is docked with the discharge port of the hook feeding vibration plate, the extension direction of the second linear slide is parallel to the extension direction of the first linear slide and staggered, the transfer slide can slide back and forth perpendicular to the extension direction of the first linear slide, and the two ends of the movable slide can respectively select one of the first linear slide and the second linear slide. The linear slides are aligned and connected, and the side walls of the movable slides can block the opening in the discharge direction of the second linear mutual channel. The incoming material sensing device can sense the pier hook located in the movable slide. The incoming material sensing device is electrically connected and communicates with the control system. The movable slide drive device drives the movable slide to reciprocate. The pushing slide block can be installed on the workbench to slide back and forth along the extension direction of the first linear slide. The pushing slide block can push the pier hook in the movable slide into the first position of the first linear slide. The pushing drive device drives the pushing slide block to reciprocate. The control system controls the start and stop actions of the movable slide drive device and the pushing drive device.

4. The automated riveting production line for automotive latches according to claim 3, wherein: At the end of the second linear slideway, there is also a pier hook sorting and moving mechanism (27). The pier hook sorting and moving mechanism includes a pier hook sorting insert piece (271), a pier hook sorting slider (272), a pier hook sorting moving slider (273), a pier hook sorting slider driving device (274) and a pier hook sorting moving slider driving device (275). On the side wall of one end of the first linear slideway facing the moving slideway, there is a blocking piece (276). The blocking piece can block the opening at one end of the moving slideway facing the first linear slideway, so that only when the moving slideway is docked with the first linear slideway, the pier hooks inside it can be discharged from the outlet of the moving slideway. The pier hook sorting moving slider is installed on the workbench so as to be able to reciprocate along the extending direction of the second linear slideway. The pier hook sorting moving slider driving device drives the pier hook sorting moving slider to reciprocate. The pier hook sorting slider is installed on the pier hook sorting moving slider so as to be able to reciprocate along the direction perpendicular to the extending direction of the second linear slideway. The pier hook sorting insert piece is fixedly installed on the pier hook sorting slider. The pier hook sorting insert piece can be inserted into the U-shaped structure of the pier hook at the end of the second linear slideway as it slides with the pier hook sorting slider. The pier hook sorting slider driving device drives the pier hook sorting slider to reciprocate. The control system controls the start and stop actions of the pier hook sorting slider driving device and the pier hook sorting moving slider driving device.

5. The automated riveting production line for automotive latches according to claim 1, wherein: The bottom plate feeding mechanism includes a bottom plate loading vibrating disk (31) that can sequentially arrange the bottom plates as required, a bottom plate discharging slide rail (32), a bottom plate distributing slider (33) and a bottom plate distributing driving device (34). The feeding end of the bottom plate discharging slide rail is aligned and connected to the discharging port of the bottom plate loading vibrating disk. The bottom plate distributing slider is installed on the workbench so as to be able to reciprocate along the direction perpendicular to the extending direction of the bottom plate discharging slide rail. There is an opening groove on the bottom plate distributing slider that can only accommodate one bottom plate. As the bottom plate distributing slider moves, the opening groove can be aligned and connected with the discharging end of the bottom plate discharging slide rail or misaligned to close the discharging end of the bottom plate discharging slide rail. A bottom plate sensing device is installed in the opening groove of the bottom plate distributing slider. The bottom plate sensing device can sense the bottom plate entering the opening groove. The bottom plate sensing device is electrically connected and communicates with the control system. The control system controls the start and stop actions of the bottom plate distributing driving device.

6. The automatic riveting production line for automotive latches according to claim 1 or 5, characterized in that: The bottom plate assembling mechanism includes a three-axis sliding manipulator, a bottom plate gripper and a bottom plate clamping driving device. The moving end of the three-axis sliding manipulator can move to any point within a set three-dimensional space range. The bottom plate gripper is installed on the moving end of the three-axis sliding manipulator. The bottom plate clamping driving device drives the bottom plate gripper to clamp or release the bottom plate. The control system controls the start and stop actions of the three-axis sliding manipulator and the bottom plate clamping driving device.

7. The automatic riveting production line for automotive latches according to claim 1, characterized in that: At the feeding end of the first linear slideway, there is a shaping start sensing device. The shaping start sensing device can sense the pier hooks entering the first linear slideway. The shaping start sensing device is electrically connected and communicates with the control system. The control system controls the start and stop actions of the pier hook shaping driving device. The pier hook shaping driving device drives the pier hook shaping lifting slider to move up and down on the workbench.

8. The automated riveting production line for automobile latches according to claim 1, wherein: An inclined slideway (71) is fixedly installed on the outer side of the stamping and riveting die equipment along the conveying direction of the first linear slideway. The high-end of the inclined slideway is connected to the end of the first linear slideway, and a receiving box (72) is arranged below the low-end of the inclined slideway. The assembly handling mechanism includes a horizontal handling slider (61), a feeding slider (62), a cross bar (63), a handling fork (64), a horizontal handling driving device (65) and a feeding driving device (66). The horizontal handling slider is installed on the workbench so as to reciprocate along the extending direction of the first linear slideway. The feeding slider is installed on the horizontal handling slider so as to reciprocate along the direction perpendicular to the extending direction of the first linear slideway. The cross bar extending along the extending direction of the first linear slideway is fixedly installed on the feeding slider. At least two handling forks are fixedly installed on the cross bar at intervals along the extending direction of the first linear slideway. The handling fork includes a central insert piece that can be inserted into the U-shaped structure of the pier hook and a U-shaped slot that can stop on both sides of the bottom plate along the handling direction. The control system controls the start and stop actions of the horizontal handling driving device and the feeding driving device, and then transports the assembled buckle at the second position into the stamping die for stamping, and transports the stamped product into the inclined slideway for discharging.

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