Electrophoretic coating of workpieces with electrically conductive jigs

Abstract

This utility model relates to the field of conductive clamping technology and discloses a conductive clamping fixture for electrophoretic coating of workpieces. It includes a support frame, with two cylinders fixedly connected to the inner top wall of the support frame. The output ends of the two cylinders are fixedly connected to a housing. A clamping assembly is disposed inside the housing. Two connecting blocks are slidably connected inside the housing. A movable plate is fixedly connected to the bottom of each connecting block. A clamping plate is disposed on the outer side of the movable plate, and a fixing assembly is disposed inside the movable plate. The clamping assembly includes a motor, the bottom end of which is fixedly connected to the top of the housing. In this utility model, the motor drives a gear to rotate, which in turn moves a rack, which in turn moves the movable plates via the connecting blocks. This allows the two clamping plates to stably clamp workpieces of different specifications, thereby improving the equipment's adaptability to diverse workpieces and better meeting diverse production needs.

Description

Technical Field

[0001] This utility model relates to the field of conductive fixture technology, and in particular to a conductive fixture for electrophoretic coating of workpieces. Background Technology

[0002] Electrophoretic coating is a coating method that uses an external electric field to cause pigments and resin particles suspended in an electrophoretic solution to migrate directionally and deposit on the surface of a substrate, which is one of the electrodes. This technology is characterized by its water solubility, non-toxicity, and ease of automation control. Furthermore, the electrophoretic paint film has the advantages of fullness, uniformity, smoothness, and evenness. Its hardness, adhesion, corrosion resistance, and impact resistance are significantly better than other coating processes, so it is widely used in industries such as automobiles, building materials, hardware, and home appliances.

[0003] Currently, existing electrophoretic coating conductive fixtures are difficult to achieve stable and reliable adaptation when clamping and fixing workpieces of different specifications. They also cannot adapt to workpieces exceeding the preset size due to the fixed clamping range. This limitation in the clamping and adaptation capability of diverse workpieces directly results in low compatibility of the equipment when dealing with multi-specification production needs, and poor overall adaptability.

[0004] To address the above problems, a conductive fixture for electrophoretic coating of workpieces is proposed. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a conductive fixture for electrophoretic coating of workpieces, which aims to improve the problems of existing fixtures being unable to adapt to workpieces of different sizes and being unable to quickly change fixtures.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A conductive fixture for electrophoretic coating of workpieces includes a support frame. Two cylinders are fixedly connected to the inner top wall of the support frame. The output ends of the two cylinders are fixedly connected to a housing. A clamping assembly is provided inside the housing. Two connecting blocks are slidably connected inside the housing. A movable plate is fixedly connected to the bottom of each of the two connecting blocks. A clamping plate is provided on the outer side of the movable plate. A fixing assembly is provided inside the movable plate.

[0008] The clamping assembly includes a motor, the bottom end of which is fixedly connected to the top of the housing, and a gear is fixedly connected to the output end of the motor. The gear is rotatably connected inside the housing, and two racks are slidably connected inside the housing. Both racks are meshed with the gear, and the top of the connecting block is fixedly connected to the bottom of the racks.

[0009] As a further description of the above technical solution:

[0010] The fixing assembly includes two push rods and two connecting blocks. The outer side of each push rod is slidably connected to the inside of the movable plate. A baffle is fixedly connected to the outer periphery of each push rod. A spring is provided inside the movable plate and is sleeved on the outer periphery of the push rod. The connecting blocks are inserted into the inside of the movable plate and are fixedly connected to the outside of the clamping plate. A limit rod is slidably connected to the middle of the connecting blocks. An inclined block is fixedly connected to the top of the limit rod. A sliding rod is fixedly connected to the top of the inclined block. A spring is sleeved on the outer periphery of the sliding rod.

[0011] As a further description of the above technical solution:

[0012] One end of the spring is fixedly connected to the outside of the baffle, and the other end of the spring is fixedly connected to the inside of the movable plate;

[0013] As a further description of the above technical solution:

[0014] The bottom end of the second spring is fixedly connected to the top of the inclined block, and the top end of the second spring is fixedly connected to the inner wall of the movable plate;

[0015] As a further description of the above technical solution:

[0016] Both the limiting rod and the sliding rod are slidably connected inside the movable plate;

[0017] As a further description of the above technical solution:

[0018] Both the baffle and the inclined block are slidably connected inside the movable plate;

[0019] As a further description of the above technical solution:

[0020] A rubber pad is fixedly connected to the side of the clamping plate away from the movable plate;

[0021] As a further description of the above technical solution:

[0022] Two lifting rings are fixedly connected to the top of the support frame.

[0023] This utility model has the following beneficial effects:

[0024] 1. In this utility model, the gear is driven to rotate by a motor. Since the gear and rack are in a meshing state, the rotation of the gear will drive the two racks to move synchronously in the same or opposite directions. Then, the movable plate is driven to move in conjunction through the connecting block, so that the two clamping plates can stably clamp workpieces of different specifications. This improves the equipment's adaptability to diverse workpieces and can better meet diverse production needs.

[0025] 2. In this utility model, the push rod drives the baffle to slide within the movable plate and compresses the first spring. When the push rod contacts the inclined block, it pushes it upward, thereby driving the limiting rod and the sliding rod to move in tandem, while simultaneously squeezing the second spring. Once the limiting rod disengages from the second connecting block, the clamping plate can be removed. After the clamping plate is replaced, the second connecting block is inserted into the movable plate, the push rod is released, and the first spring will drive the baffle and the push rod to reset. Subsequently, the second spring will drive the inclined block and the limiting rod to reset, causing the limiting rod to engage with the second connecting block, thus fixing the clamping plate to the movable plate. By quickly replacing the clamping plate, the operation time of maintenance personnel can be reduced, thereby shortening the equipment downtime. Attached Figure Description

[0026] Figure 1 This is a three-dimensional schematic diagram of a conductive fixture for electrophoretic coating of workpieces proposed in this utility model;

[0027] Figure 2 This is a three-dimensional schematic diagram of the clamping assembly of a conductive fixture for electrophoretic coating of workpieces proposed in this utility model.

[0028] Figure 3 This is an internal structural diagram of the outer shell of a conductive fixture for electrophoretic coating of workpieces proposed in this utility model;

[0029] Figure 4 This is a cross-sectional view of the movable plate of a conductive fixture for electrophoretic coating of workpieces proposed in this utility model.

[0030] Legend:

[0031] 1. Support frame; 2. Cylinder; 3. Lifting ring; 4. Motor; 5. Housing; 6. Gear; 7. Rack; 8. Connecting block one; 9. Movable plate; 10. Clamping plate; 11. Rubber pad; 12. Push rod; 13. Baffle; 14. Spring one; 15. Connecting block two; 16. Limiting rod; 17. Inclined block; 18. Spring two; 19. Sliding rod. Detailed Implementation

[0032] 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.

[0033] Reference Figure 1 - Figure 3This utility model provides an embodiment of a conductive fixture for electrophoretic coating of workpieces, including a support frame 1. The support frame 1 is used to support the overall equipment so that the equipment can operate stably. Two cylinders 2 are fixedly connected to the inner top wall of the support frame 1. The output ends of the two cylinders 2 are fixedly connected to a housing 5. A clamping assembly is provided inside the housing 5. The clamping assembly can clamp and fix workpieces of different specifications. After clamping is completed, the cylinders 2 are activated to drive the housing 5 to move downward, thereby driving the workpiece to move downward, and then electrophoretic coating is performed. Two connecting blocks 8 are slidably connected inside the housing 5. A movable plate 9 is fixedly connected to the bottom of each of the two connecting blocks 8. A clamping plate 10 is provided on the outside of the movable plate 9. A fixing assembly is provided inside the movable plate 9.

[0034] The clamping assembly includes a motor 4, the bottom of which is fixedly connected to the top of the housing 5. The housing 5 serves to support the motor 4, providing a good support environment for the stable operation of the motor 4. A gear 6 is fixedly connected to the output end of the motor 4. The gear 6 is rotatably connected inside the housing 5. After the motor 4 is started, it can convert electrical energy into mechanical kinetic energy, thereby driving the gear 6 to rotate inside the housing 5. Two racks 7 are slidably connected inside the housing 5. Both racks 7 are meshed with the gear 6. The top of the connecting block 8 is fixedly connected to the bottom of the racks 7. Based on the meshing transmission principle between the gear 6 and the racks 7, the rotational motion of the gear 6 can be converted into the linear motion of the racks 7, thereby driving the two racks 7 to move in the same or opposite directions. The connecting block 8 is used to connect the racks 7 to the movable plate 9, thereby causing the movable plate 9 to drive the clamping plate 10 to move synchronously, so as to achieve stable clamping of workpieces of different specifications.

[0035] Reference Figure 1 and Figure 4The fixing assembly includes two push rods 12 and two connecting blocks 15. The outer side of the push rod 12 is slidably connected to the inside of the movable plate 9. A baffle 13 is fixedly connected to the outer periphery of the push rod 12. A spring 14 is installed inside the movable plate 9 and is sleeved on the outer periphery of the push rod 12. The connecting blocks 15 are inserted into the inside of the movable plate 9 and are fixedly connected to the outer side of the clamping plate 10. A limit rod 16 is slidably connected to the middle of the connecting blocks 15. An inclined block 17 is fixedly connected to the top of the limit rod 16. A sliding rod 19 is fixedly connected to the top of the inclined block 17. A spring 18 is sleeved on the outer periphery of the sliding rod 19. Pushing the push rod 12 causes the baffle 13 to move synchronously. During the movement of the baffle 13, the spring 14 is compressed, thus storing elastic potential energy. When the push rod 12 contacts the inclined surface of the inclined block 17, it pushes the inclined block 17 upward through the arc of its surface. The inclined block 17 moves downward, causing the limiting rod 16 and sliding rod 19 to move downward. During the upward movement of the inclined block 17, the second spring 18 is compressed, thus storing elastic potential energy in the second spring 18. When the sliding rod 19 slides out of the second connecting block 15, the clamping plate 10 can be removed, making it convenient for the operator to clean or replace the clamping plate 10. When it is necessary to reinstall the clamping plate 10, press the push rod 12, causing the inclined block 17 to move upward, and then insert the second connecting block 15 into the movable plate 9. Then, the push rod 12 can be released, causing the first spring 14 to release elastic potential energy, thereby driving the baffle 13 and the push rod 12 to reset. At the same time, the push rod 12 will move away from the inclined block 17. At this time, the second spring 18 will push the inclined block 17 to reset in the opposite direction, and then the limiting rod 16 will slide into the second connecting block 15, thereby fixing the movable plate 9 and the clamping plate 10 together.

[0036] Reference Figure 1 - Figure 4 One end of spring 14 is fixedly connected to the outside of baffle 13, and the other end of spring 14 is fixedly connected to the inside of movable plate 9. When baffle 13 is stationary, the elasticity of spring 14 can support baffle 13 and prevent baffle 13 from sliding freely. The bottom end of spring 18 is fixedly connected to the top of inclined block 17, and the top end of spring 18 is fixedly connected to the inner wall of movable plate 9. Spring 18 is used to support inclined block 17. When inclined block 17 is squeezed by external force, it will squeeze spring 18. Limiting rod 16 and sliding rod 19 are both slidably connected to the movable plate 9. Inside plate 9, limit rod 16 is used to fix connecting block 15 inside movable plate 9, sliding rod 19 is used to make inclined block 17 move stably, baffle 13 and inclined block 17 are slidably connected inside movable plate 9, and rubber pad 11 is fixedly connected to the side of clamping plate 10 away from movable plate 9. By setting rubber pad 11, the squeezing force on the workpiece during clamping can be reduced, thereby avoiding damage to the workpiece due to excessive squeezing. Two lifting rings 3 are fixedly connected to the top of support frame 1. By setting lifting rings 3, it is convenient to move the equipment above the coating tank.

[0037] Working principle: When it is necessary to clamp workpieces of different specifications, start motor 4, so that the output end of motor 4 drives gear 6 to rotate. Since gear 6 meshes with rack 7, the rotation of gear 6 will drive rack 7 to slide inside the outer shell 5, so that the two racks 7 move in the same or opposite directions. Then, through connecting block 8, the movable plate 9 moves synchronously with rack 7, so that the two clamping plates 10 can clamp workpieces of different specifications.

[0038] When the clamping plate 10 needs to be replaced, press the push rod 12 to make the push rod 12 drive the baffle 13 to slide inside the movable plate 9, and simultaneously compress the first spring 14. When the push rod 12 contacts the inclined block 17, it will push the inclined block 17 to move upward, so that the inclined block 17 drives the limit rod 16 and the sliding rod 19 to move synchronously. During the upward movement, the inclined block 17 will also squeeze the second spring 18. When the limit rod 16 slides away from the second connecting block 15, the clamping plate 10 can be removed and replaced. After the replacement is completed, insert the second connecting block 15 into the movable plate 9, release the push rod 12, and the first spring 14 will drive the baffle 13 and the push rod 12 to reset. Then, the compressed second spring 18 will drive the inclined block 17 and the limit rod 16 to reset, so that the limit rod 16 continues to slide into the second connecting block 15, thereby fixing the clamping plate 10 and the movable plate 9 together through the second connecting block 15.

[0039] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A conductive fixture for electrophoretic coating of workpieces, comprising a support frame (1), characterized in that: The support frame (1) has two cylinders (2) fixedly connected to its inner top wall. The output ends of the two cylinders (2) are fixedly connected to a housing (5). The housing (5) has a clamping assembly inside. The housing (5) has two connecting blocks (8) slidably connected inside. The bottom of each of the two connecting blocks (8) is fixedly connected to a movable plate (9). The movable plate (9) has a clamping plate (10) on its outer side. The movable plate (9) has a fixing assembly inside. The clamping assembly includes a motor (4), the bottom end of which is fixedly connected to the top of the housing (5). A gear (6) is fixedly connected to the output end of the motor (4). The gear (6) is rotatably connected inside the housing (5). Two racks (7) are slidably connected inside the housing (5). Both racks (7) are meshed with the gear (6). The top of the connecting block (8) is fixedly connected to the bottom of the racks (7).

2. The conductive fixture for electrophoretic coating of workpieces according to claim 1, characterized in that: The fixing assembly includes two push rods (12) and two connecting blocks (15). The outer side of the push rod (12) is slidably connected to the inside of the movable plate (9). A baffle (13) is fixedly connected to the outer periphery of the push rod (12). A spring (14) is provided inside the movable plate (9). The spring (14) is sleeved on the outer periphery of the push rod (12). The connecting block (15) is inserted into the inside of the movable plate (9). The connecting block (15) is fixedly connected to the outside of the clamping plate (10). A limit rod (16) is slidably connected to the middle of the connecting block (15). An inclined block (17) is fixedly connected to the top of the limit rod (16). A sliding rod (19) is fixedly connected to the top of the inclined block (17). A spring (18) is sleeved on the outer periphery of the sliding rod (19).

3. The conductive fixture for electrophoretic coating of workpieces according to claim 2, characterized in that: One end of the spring (14) is fixedly connected to the outside of the baffle (13), and the other end of the spring (14) is fixedly connected to the inside of the movable plate (9).

4. A conductive fixture for electrophoretic coating of workpieces according to claim 2, characterized in that: The bottom end of the second spring (18) is fixedly connected to the top of the inclined block (17), and the top end of the second spring (18) is fixedly connected to the inner wall of the movable plate (9).

5. A conductive fixture for electrophoretic coating of workpieces according to claim 2, characterized in that: The limiting rod (16) and the sliding rod (19) are both slidably connected inside the movable plate (9).

6. A conductive fixture for electrophoretic coating of workpieces according to claim 2, characterized in that: Both the baffle (13) and the inclined block (17) are slidably connected inside the movable plate (9).

7. A conductive fixture for electrophoretic coating of workpieces according to claim 1, characterized in that: A rubber pad (11) is fixedly connected to the side of the clamping plate (10) away from the movable plate (9).

8. A conductive fixture for electrophoretic coating of workpieces according to claim 1, characterized in that: The top of the support frame (1) is fixedly connected to two lifting rings (3).

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