A clamping device for electroplating processing of an automobile exterior part
By using a cylinder-driven clamping block and buffer assembly, combined with a motor, gears, limit rods, and anti-collision components, the problem of low material changing efficiency in existing clamping devices for electroplating of automotive exterior parts is solved. This enables rapid clamping and releasing, improves electroplating uniformity and equipment lifespan, and is compatible with automated production lines.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHONGQING XINMEITE TECHNOLOGY CO LTD
- Filing Date
- 2025-09-11
- Publication Date
- 2026-08-04
AI Technical Summary
In existing clamping devices for electroplating of automotive exterior parts, the clamping structure mostly adopts a bolt-fastened linkage locking design, which results in low material change efficiency and makes it difficult to adapt to the high-speed turnover requirements of automated electroplating production lines.
The clamping block and buffer assembly driven by a cylinder, combined with a motor, gears, limit rods and anti-collision components, enable quick clamping and release, replacing the traditional bolt fastening method. This ensures stable clamping force and avoids damage to the workpiece, and the moving mechanism improves the uniformity of electroplating.
It improves material change efficiency in mass production, reduces bubble problems caused by uneven electroplating, protects equipment components, extends equipment lifespan, and meets the needs of automated electroplating production lines.
Smart Images
Figure CN224591069U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of automobile manufacturing technology, and in particular to a clamping device for electroplating automobile exterior parts. Background Technology
[0002] The clamping device for electroplating is a special tooling equipment used to fix and position the workpiece during the electroplating process of automotive exterior parts. It can stably clamp the workpiece by adapting to the shape of the exterior parts, ensuring that the workpiece maintains a preset posture in the electroplating solution. The reason for needing this type of device is that automotive exterior parts are mostly curved or irregularly shaped, and they need to be in complete and uniform contact with the electroplating solution during electroplating.
[0003] A search revealed Chinese patent publication number CN219157029U, which discloses an electroplating clamping device. This device includes a connecting frame, a top plate, a hydraulic cylinder, a push plate, a limiting groove, a baffle, a motor, a bidirectional lead screw, a moving block, a limiting block, a connecting block, a clamping block, a limiting rod, and a spring. The device clamps objects by cooperating with each component. The hydraulic cylinder drives the push plate to move up and down, and the motor drives the bidirectional lead screw to rotate, causing the moving block to move under the limiting position of the limiting block and the limiting groove. This, in turn, drives the connecting block and the clamping block to move. The limiting rod and the spring can assist in adjusting the clamping force, ultimately completing the clamping operation of the object.
[0004] The aforementioned patent mentions the beneficial effects: "By driving a bidirectional lead screw to rotate via a motor, and limiting the moving block via a limiting block and a limiting groove, the moving block can be effectively moved on the bidirectional lead screw. Simultaneously, the connecting block on the bottom surface of the moving block moves. When the clamping block on one side of the connecting block abuts against the workpiece, the workpiece can be automatically clamped, saving time and effort and improving work efficiency." Although the above solution can solve the problem, in the prior art, the clamping structure of some clamping devices for electroplating of automotive exterior parts mostly adopts a bolt-fastened linkage locking design. Disassembly requires loosening the bolts one by one, which is a lengthy and cumbersome process. This restricts the material change efficiency in mass production and is difficult to adapt to the high-speed flow requirements of automated electroplating production lines. Therefore, a clamping device for electroplating of automotive exterior parts is proposed to solve the above problems. Utility Model Content
[0005] The purpose of this utility model is to provide a clamping device for electroplating of automotive exterior parts, which aims to solve the problem that many existing clamping structures use bolt-fastened linkage locking designs, resulting in low material change efficiency in mass production.
[0006] A clamping device for electroplating automotive exterior parts includes a lifting component. Two fixing blocks are fixedly connected to the outer wall of the lifting component. A fixing strip is fixedly connected to an adjacent side of the two fixing blocks. A clamping mechanism is installed inside the fixing strip, and a moving mechanism is installed inside the fixing blocks.
[0007] The clamping mechanism includes cylinders, the outer walls of two cylinders are fixedly connected to the inner wall of the fixing strip, the driving end of the cylinder is fixedly connected to a push block, the outer wall of the push block is slidably connected to two clamping blocks, and a buffer component is provided on the far side of the two clamping blocks.
[0008] The buffer assembly includes a damper, the outer walls of the two dampers are fixedly connected to the outer walls of the two clamping blocks, and a support plate is fixedly connected to the far side of each of the two dampers. A spring is sleeved on the outside of the damper.
[0009] The moving mechanism includes a limiting rod, the outer wall of which is fixedly connected to the inner wall of the fixing block, a sliding block slidably connected to the outer wall of the limiting rod, a motor fixedly connected to the outer wall of the sliding block, a gear fixedly connected to the drive end of the motor, a connecting column fixedly connected to the outer wall of the gear, and an anti-collision component provided on the outer wall of the fixing bar.
[0010] The anti-collision component includes a fixed shell, with two adjacent sides of the fixed shells fixedly connected to the outer wall of the fixed strip. A sliding shell is slidably connected to the inner wall of the fixed shell. A damper II is fixedly connected to the inner wall of the fixed shell. A spring II is sleeved on the outside of the damper II. A rack is fixedly connected to the inner wall of the fixed block. A slide rail is fixedly connected to the outer wall of the fixed strip.
[0011] One end of the spring is fixedly connected to the outer wall of the support plate, and the other end of the spring is fixedly connected to the outer wall of the clamping block.
[0012] The outer walls of the multiple support discs are fixedly connected to the inner wall of the fixing strip, and the outer walls of the multiple clamping blocks are slidably connected to the inner wall of the fixing strip.
[0013] Among them, the two connecting columns are fixedly connected to the outer wall of the fixing strip on their adjacent sides, the outer side of the rack is meshed with the outer side of the gear, one end of the second spring is fixedly connected to the inner wall of the sliding shell, and the other end of the second spring is fixedly connected to the inner wall of the fixing shell.
[0014] The outer wall of the slide rail is slidably connected to the inner wall of the fixed block, the outer walls of the two fixed shells are slidably connected to the inner wall of the fixed block, the inner wall of the fixed block is fixedly connected to multiple limiting plates, and the inner wall of the fixed strip is detachably connected to a placement rack.
[0015] This utility model relates to a clamping device for electroplating automotive exterior parts.
[0016] 1. In this utility model, the cylinder drives the push block to work, and the push block drives the clamping block to open and close. At the same time, the damper and spring in the buffer assembly assist in adjusting the force, thereby realizing the rapid clamping and loosening of the placement rack, replacing the traditional bolt fastening method, reducing the material changing process, improving the material changing efficiency in batch production, and avoiding damage to the workpiece due to excessive clamping force, which is suitable for the high-speed turnover requirements of automated electroplating production lines.
[0017] 2. In this utility model, with the cooperation of motor, gear, rack, limit rod, slide rail and anti-collision component, the fixing bar drives the placement frame to move back and forth stably, so as to improve the problem of excessive bubbles caused by uneven contact with electroplating solution during the electroplating of automotive exterior parts, improve the electroplating uniformity, and at the same time, the anti-collision component can buffer the impact force at the extreme position of movement, protect the device components and extend the service life of the equipment. Attached Figure Description
[0018] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.
[0019] Figure 1 This is a three-dimensional schematic diagram of a clamping device for electroplating automotive exterior parts proposed in this utility model;
[0020] Figure 2 This is a schematic diagram of the fixing strip of a clamping device for electroplating automotive exterior parts proposed in this utility model;
[0021] Figure 3 for Figure 2 Enlarged view of point A in the middle;
[0022] Figure 4 for Figure 2 Enlarged view of point B in the middle.
[0023] In the diagram: 1-Lifting component; 2-Fixing block; 3-Fixing strip; 4-Clamping mechanism; 41-Cylinder; 42-Pushing block; 43-Clamping block; 44-Buffer assembly; 441-Damper one; 442-Support plate; 443-Spring one; 5-Moving mechanism; 51-Limit rod; 52-Sliding block; 53-Motor; 54-Gear; 55-Connecting column; 56-Anti-collision assembly; 561-Fixing shell; 562-Sliding shell; 563-Damper two; 564-Spring two; 565-Rack; 566-Slide rail; 6-Limiting plate; 7-Placement frame. Detailed Implementation
[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0025] Reference Figures 1 to 3 This utility model provides an embodiment of a clamping device for electroplating automotive exterior parts, including a lifting component 1. The lifting component 1 is the basic lifting part of the device, and its own lifting adjustment adjusts the height of the entire device and the clamped workpiece to adapt to different electroplating tank depths, ensuring that the workpiece can accurately enter the preset position of the electroplating solution. Two fixing blocks 2 are fixedly connected to the outer wall of the lifting component 1. The two fixing blocks 2 are symmetrically distributed and are used to connect the lifting component 1 and the fixing strip 3, while providing a mounting carrier for the moving mechanism 5, enhancing the overall structural stability of the device. The adjacent sides of the two fixing blocks 2 are fixed. The fixed connection has a fixing bar 3, which is the core load-bearing structure for clamping the workpiece. It connects two fixing blocks 2 and has a clamping mechanism 4 installed inside. The outer wall is adapted to the moving mechanism 5, providing installation space for the placement rack 7. The clamping mechanism 4 is installed inside the fixing bar 3. The clamping mechanism 4 is used to quickly clamp or release the placement rack 7, replacing the traditional bolt fastening method, improving material changing efficiency, and adapting to automated production. The moving mechanism 5 is installed inside the fixing block 2. The moving mechanism 5 can drive the fixing bar 3 and the workpiece to move back and forth, reducing bubbles during electroplating and improving electroplating uniformity.
[0026] The clamping mechanism 4 includes a cylinder 41, which is the power source of the clamping mechanism 4. It provides power for the clamping action through telescopic movement to realize automated operation. The outer walls of the two cylinders 41 are fixedly connected to the inner wall of the fixing strip 3, which stably fixes the cylinders 41 in the fixing strip 3 to ensure that their driving direction is stable and to avoid shaking that affects the clamping accuracy. The driving end of the cylinder 41 is fixedly connected to a push block 42. The push block 42 connects the cylinder 41 and the clamping block 43 and is used to transmit the power of the cylinder 41 and convert the linear motion into the opening and closing action of the clamping block 43. The outer wall of the push block 42 is slidably connected to two clamping blocks 43. The two clamping blocks 43 move closer or further away from each other when the push block 42 moves by cooperating with the inclined surface of the push block 42, thus completing the clamping or releasing of the placement rack 7. A buffer component 44 is provided on the far side of the two clamping blocks 43. The buffer assembly 44 is used to reduce the impact of opening and closing of the clamping block 43, avoid excessive force from damaging the workpiece, and at the same time assist the clamping block 43 to return to its original position smoothly.
[0027] Reference Figure 2 and Figure 3 The buffer assembly 44 includes a damper 441, which buffers the elastic force of the spring 443, making the movement of the clamping block 43 smoother and preventing workpiece shaking caused by impact. The outer walls of the two dampers 441 are fixedly connected to the outer walls of the two clamping blocks 43, connecting the dampers 441 to the clamping blocks 43 to ensure that the clamping blocks 43 can drive the dampers 441 to move synchronously, achieving a buffering effect. Support plates 442 are fixedly connected to the far sides of the two dampers 441. The support plates 442 are fixed to the inner wall of the fixing strip 3, providing stable support points for the dampers 441 and the spring 443, ensuring that the position of the buffer assembly 44 is fixed. The spring 443 is sleeved on the outside of the dampers 441. The spring 443 is compressed and stores energy when the clamping blocks 43 move away, and releases its elastic force when released to assist the clamping blocks 43 in resetting, enhancing the clamping response speed.
[0028] Reference Figures 2 to 4 The moving mechanism 5 includes a limiting rod 51, which limits the movement trajectory of the sliding block 52, ensuring that the sliding block 52 slides smoothly along a straight line and preventing the motor 53 and gear 54 from deviating and affecting the transmission. The outer wall of the limiting rod 51 is fixedly connected to the inner wall of the fixed block 2, fixing the limiting rod 51 inside the fixed block 2 and providing a stable sliding track for the sliding block 52, ensuring the stable operation of the moving mechanism 5. The outer wall of the limiting rod 51 is slidably connected to the sliding block 52, which is sleeved on the limiting rod 51 and slides with the motor 53, providing support for the motor 53 and ensuring that the gear 54 and rack 565 mesh accurately. The outer wall of the sliding block 52 is fixedly connected to the motor 53, which is the power source of the moving mechanism 5 and provides moving power by driving the gear 54 to rotate.
[0029] A gear 54 is fixedly connected to the drive end of the motor 53. The gear 54 meshes with the rack 565, converting the rotational motion of the motor 53 into linear motion, which drives the fixed bar 3 to move. A connecting column 55 is fixedly connected to the outer wall of the gear 54. The connecting column 55 connects the gear 54 and the fixed bar 3, transmitting the moving force of the gear 54 to the fixed bar 3, so as to realize the synchronous movement of the fixed bar 3. An anti-collision component 56 is provided on the outer wall of the fixed bar 3. The anti-collision component 56 is used to buffer the impact force when the fixed bar 3 moves to the extreme position, so as to avoid hard collision damage to the device components. The anti-collision component 56 includes a fixed shell 561, which is fixed to the outer wall of the fixed bar 3, providing installation space for other components of the anti-collision component 56 and limiting the sliding range of the sliding shell 562. The adjacent sides of the two fixed shells 561 are fixedly connected to the outer wall of the fixed bar 3, fixing the fixed shells 561 to the fixed bar 3, ensuring that the anti-collision component 56 moves synchronously with the fixed bar 3 and plays its anti-collision role in a timely manner.
[0030] A sliding shell 562 is slidably connected to the inner wall of the fixed shell 561. The sliding shell 562 slides within the fixed shell 561. When the fixed bar 3 moves to its limit position, it first contacts the limiting plate 6, transmitting the impact force to the buffer component. A damper 563 is fixedly connected to the inner wall of the fixed shell 561. The damper 563 absorbs the impact force transmitted from the sliding shell 562, slowing down the stopping speed of the fixed bar 3 and acting as a protective device. A spring 564 is sleeved on the outside of the damper 563, assisting the damper. The second component, 563, buffers the impact and stores energy when compressed. After the impact, it assists the sliding shell 562 in resetting, enhancing the reusability of the anti-collision component 56. The inner wall of the fixed block 2 is fixedly connected to a rack 565, which meshes with a gear 54 to provide a rolling track for the gear 54. Power transmission and motion conversion are achieved through tooth engagement. The outer wall of the fixed strip 3 is fixedly connected to a slide rail 566, which slides with the inner wall of the fixed block 2 to guide the movement of the fixed strip 3, reduce frictional resistance, and ensure smooth movement.
[0031] One end of spring 443 is fixedly connected to the outer wall of support plate 442, and the other end of spring 443 is fixedly connected to the outer wall of clamping block 43. The two ends of spring 443 are fixed to ensure that clamping block 43 can be stably compressed or extended during movement, effectively exerting its elastic force. The outer walls of multiple support plates 442 are all fixedly connected to the inner wall of fixing strip 3, fixing the support plates 442 within the fixing strip 3, ensuring the overall position of the buffer assembly 44 is stable and does not shift with the movement of clamping block 43. The outer walls of multiple clamping blocks 43 can slide. The clamping block 43 is connected to the inner wall of the fixing bar 3 and slides along the inner wall of the fixing bar 3 to restrict its movement trajectory and ensure that the clamping action is accurate and stable. The two connecting columns 55 are fixedly connected to the outer wall of the fixing bar 3 on the same side. The connecting columns 55 are fixed to the fixing bar 3 to ensure that the power of the gear 54 can be effectively transmitted to the fixing bar 3 to achieve synchronous movement. The outer side of the rack 565 is meshed with the outer side of the gear 54. Through meshing transmission, the rotational motion of the gear 54 is converted into linear motion, driving the fixing bar 3 to move in a preset direction.
[0032] One end of spring 564 is fixedly connected to the inner wall of sliding shell 562, and the other end of spring 564 is fixedly connected to the inner wall of fixed shell 561. The two ends of spring 564 are fixed to ensure that spring 564 can be compressed when sliding shell 562 is subjected to force to achieve buffering. After buffering, spring 564 drives sliding shell 562 to reset. The outer wall of slide rail 566 is slidably connected to the inner wall of fixed block 2. Slide rail 566 cooperates with fixed block 2 to guide fixed bar 3 to move in a straight line and avoid deviation or jamming during movement. The outer walls of both fixed shells 561 are slidably connected to the inner wall of fixed block 2. When fixed shell 561 moves with fixed bar 3, it slides along the inner wall of fixed block 2 to ensure stable movement of anti-collision component 56 and not affect the movement of fixed bar 3. Multiple limiting plates 6 are fixedly connected to the inner wall of fixed block 2. The limiting plates 6 are located at both ends of the movement trajectory of fixed bar 3 and cooperate with anti-collision component 56 to limit the maximum movement distance of fixed bar 3 and prevent it from exceeding the range and damaging the structure. The inner wall of fixed bar 3 is detachably connected to a placement rack 7. The placement rack 7 is used to place automotive exterior parts. Its detachable design makes it easy to replace different workpieces, improving the versatility of the device and adapting to the electroplating needs of various exterior parts.
[0033] Working principle: The fixed bar 3 contains two clamping mechanisms 4. For the clamping mechanism 4 on the right, the cylinder 41 pushes the push block 42 to the right. The push block 42 begins to squeeze the two clamping blocks 43 to the right. The two clamping blocks 43 slide along the inclined surface of the push block 42 and move away from each other. One clamping block 43 moves upward and the other clamping block 43 moves downward. The spring 443 is squeezed and the two springs 443 are compressed away from each other. The two dampers 441 are also compressed away from each other. At this time, the clamping block 43 releases its limiting operation on the placement rack 7, and the placement rack 7 can be taken out.
[0034] After the placement rack 7 is inserted into the inner wall of the fixing strip 3, the cylinder 41 pulls the push block 42 to the left. When the push block 42 moves to the left, it loses the pressure on the two clamping blocks 43. The two clamping blocks 43 slide along the inclined surface of the push block 42 and move towards each other. One clamping block 43 moves downward and the other clamping block 43 moves upward. The spring 443 begins to release its elastic force. The two springs 443 release their elastic force towards each other. The two dampers 441 extend towards each other. The dampers 441 constrain the elastic force released by the springs 443, making its release smoother. At this time, the clamping blocks 43 begin to limit the placement rack 7, completing the installation of the placement rack 7.
[0035] When motor 53 drives gear 54 to rotate clockwise, motor 53 drives sliding block 52 to slide backward along the outer wall of limit rod 51, gear 54 drives connecting column 55 to slide backward, connecting column 55 drives fixing bar 3 to move backward, sliding shell 562 located on the rear side contacts limit plate 6 located on the rear side. As fixing bar 3 continues to move backward, limit plate 6 supports sliding shell 562 to slide into fixed shell 561. Damper 2 563 located on the rear side is compressed, absorbing the impact force of fixing bar 3 moving backward. At the same time, fixing bar 3 drives slide rail 566 to slide backward along the inner wall of fixing block 2, finally completing the operation of fixing bar 3 moving backward.
[0036] When motor 53 drives gear 54 to rotate counterclockwise, motor 53 drives sliding block 52 to slide forward along the outer wall of limit rod 51, gear 54 drives connecting column 55 to slide forward, connecting column 55 drives fixing bar 3 to move forward, sliding shell 562 located on the front side contacts limit plate 6 located on the front side. As fixing bar 3 continues to move forward, limit plate 6 supports sliding shell 562 to slide into fixing shell 561. Damper 2 563 located on the front side is compressed to absorb the impact force of fixing bar 3 moving forward. At the same time, fixing bar 3 drives slide rail 566 to slide forward along inner wall of fixing block 2, finally completing the operation of fixing bar 3 moving forward. By controlling the reciprocating motion of fixing bar 3 through motor 53, the reciprocating motion of placement rack 7 is realized. The low amplitude reciprocating operation of placement rack 7 can reduce the adhesion of bubbles during electroplating and improve the integrity of electroplating.
[0037] The above-disclosed embodiments are merely one or more preferred embodiments of this application and should not be construed as limiting the scope of this application. Those skilled in the art can understand that all or part of the processes for implementing the above embodiments and equivalent changes made in accordance with the claims of this application still fall within the scope of this application.
Claims
1. A clamping device for electroplating automotive exterior parts, comprising a lifting component, characterized in that: Two fixing blocks are fixedly connected to the outer wall of the lifting component. A fixing strip is fixedly connected to one side of the two fixing blocks. A clamping mechanism is installed inside the fixing strip, and a moving mechanism is installed inside the fixing block. The clamping mechanism includes cylinders, the outer walls of two cylinders are fixedly connected to the inner wall of the fixing strip, the driving end of the cylinder is fixedly connected to a push block, the outer wall of the push block is slidably connected to two clamping blocks, and a buffer component is provided on the far side of the two clamping blocks.
2. The clamping device for electroplating automotive exterior parts according to claim 1, characterized in that: The buffer assembly includes a damper, the outer walls of the two dampers are fixedly connected to the outer walls of the two clamping blocks, and a support plate is fixedly connected to the far side of each of the two dampers. A spring is sleeved on the outside of the damper.
3. The clamping device for electroplating automotive exterior parts according to claim 1, characterized in that: The moving mechanism includes a limiting rod, the outer wall of which is fixedly connected to the inner wall of the fixing block, a sliding block slidably connected to the outer wall of the limiting rod, a motor fixedly connected to the outer wall of the sliding block, a gear fixedly connected to the drive end of the motor, a connecting column fixedly connected to the outer wall of the gear, and an anti-collision component provided on the outer wall of the fixing bar.
4. The clamping device for electroplating automotive exterior parts according to claim 3, characterized in that: The anti-collision assembly includes a fixed shell, with two adjacent sides of the fixed shells fixedly connected to the outer wall of the fixed strip. A sliding shell is slidably connected to the inner wall of the fixed shell. A damper II is fixedly connected to the inner wall of the fixed shell. A spring II is sleeved on the outside of the damper II. A rack is fixedly connected to the inner wall of the fixed block. A slide rail is fixedly connected to the outer wall of the fixed strip.
5. A clamping device for electroplating automotive exterior parts according to claim 2, characterized in that: One end of the spring is fixedly connected to the outer wall of the support plate, and the other end of the spring is fixedly connected to the outer wall of the clamping block.
6. The clamping device for electroplating automotive exterior parts according to claim 2, characterized in that: The outer walls of the multiple support discs are fixedly connected to the inner wall of the fixing strip, and the outer walls of the multiple clamping blocks are slidably connected to the inner wall of the fixing strip.
7. A clamping device for electroplating automotive exterior parts according to claim 4, characterized in that: The two connecting posts are fixedly connected to the outer wall of the fixing strip on their adjacent sides. The outer side of the rack is meshed with the outer side of the gear. One end of the second spring is fixedly connected to the inner wall of the sliding shell, and the other end of the second spring is fixedly connected to the inner wall of the fixing shell.
8. A clamping device for electroplating automotive exterior parts according to claim 4, characterized in that: The outer wall of the slide rail is slidably connected to the inner wall of the fixed block, the outer walls of the two fixed shells are slidably connected to the inner wall of the fixed block, a plurality of limiting plates are fixedly connected to the inner wall of the fixed block, and a placement rack is detachably connected to the inner wall of the fixed strip.