A clamping jig for electroplating of a heat dissipation fin of a new energy vehicle
By designing a multi-directional rotating and height-adjustable clamping fixture, the problems of uneven plating and plating solution residue in the electroplating of heat sinks for new energy vehicles were solved, thereby improving production efficiency and the service life of the fixture.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SUZHOU COPLATE SURFACE TREATMENT TECH
- Filing Date
- 2025-07-21
- Publication Date
- 2026-07-07
AI Technical Summary
In the current electroplating process of heat sinks for new energy vehicles, the edge clamping method of traditional fixtures leads to uneven plating, and frequent changes in fixtures and manual adjustments limit the efficiency of mass production. At the same time, the vertical hoisting method is prone to plating solution residue, increasing the difficulty of cleaning and the risk of contamination.
A clamping fixture including a mounting rod, mounting bracket, telescopic rod, positioning frame, clamping block, and drive wheel was designed. Through multi-directional rotation and height adjustment, the uniformity of the coating is ensured, and the coating solution residue is reduced through the sealing ring and clamping block structure. It can adapt to heat sinks of different sizes and shapes, thereby improving production efficiency.
It achieves uniform coverage of the heat sink coating, reduces plating solution residue and cleaning difficulty, shortens changeover time, and improves mass production efficiency and fixture life.
Smart Images
Figure CN224467980U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of electroplating technology, specifically a clamping fixture for electroplating heat sinks of new energy vehicles. Background Technology
[0002] Automotive radiators are devices used to dissipate heat from easily heated components in a car. They are typically made of aluminum alloy, brass, or bronze and can be in the form of plates, sheets, or multiple sheets. During the production process, radiators often undergo electroplating, a process that uses electrolysis to deposit a thin layer of another metal or alloy onto the surface of certain metals. This process uses electrolysis to attach a metal film to the surface of metal or other material parts, thereby preventing corrosion, improving wear resistance, conductivity, reflectivity, and enhancing aesthetics. This process can effectively improve the performance and appearance of automotive parts.
[0003] Currently, electroplating of heat sinks for new energy vehicles mainly uses fixed clamping or unidirectional rotating fixtures. The edge clamping method of traditional fixtures will block the electroplating area. Static clamping or unidirectional rotation makes it difficult to ensure the uniformity of the plating layer inside the complex structure. In addition, frequent changes and manual adjustments restrict the efficiency of mass production. Furthermore, vertical hoisting methods are prone to plating solution residue, increasing the difficulty of cleaning and the risk of contamination. Utility Model Content
[0004] The purpose of this utility model is to provide a clamping fixture for electroplating heat sinks of new energy vehicles, so as to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a clamping fixture for electroplating heat sinks of new energy vehicles, comprising a mounting rod and a mounting frame. A first telescopic rod is slidably mounted inside the mounting rod, and a second telescopic rod is slidably mounted inside the first telescopic rod. The mounting frame is rotatably mounted inside the second telescopic rod, and a positioning frame is rotatably mounted inside the mounting frame. A toothed ring is sleeved on the positioning frame, and a drive wheel is rotatably mounted inside the mounting frame. The drive wheel is meshed with the toothed ring. The positioning frame has four sets of symmetrically distributed clamping blocks. Two sets of symmetrically distributed first adjusting rods are slidably mounted inside the positioning frame, and two sets of symmetrically distributed second adjusting rods are slidably mounted inside the positioning frame. The two sets of first adjusting rods and second adjusting rods are perpendicularly distributed. The four sets of clamping blocks are slidably connected to one set of first adjusting rods and one set of second adjusting rods, respectively.
[0006] As a further preferred embodiment of this technical solution, the mounting bracket is provided with two sets of symmetrically distributed sealing rings, which are fixedly connected to the mounting bracket and the positioning frame respectively. A screw is rotatably installed inside the mounting rod, and a screw tube is rotatably installed inside the first telescopic rod. The lower end of the screw passes through the first telescopic rod and is threadedly connected to it. The lower end of the screw tube passes through the second telescopic rod and is threadedly connected to it. Two sets of symmetrically distributed keyways are provided on the screw, and two sets of symmetrically distributed key blocks are provided inside the screw tube. The key blocks are correspondingly arranged with the keyways, and the screw tube is slidably sleeved with the screw through the key blocks and keyways.
[0007] As a further preferred embodiment of this technical solution, two sets of vertically distributed bidirectional lead screws are rotatably installed inside the positioning frame, and two sets of mounting shafts corresponding to the bidirectional lead screws are rotatably installed inside the positioning frame. A first bevel gear is sleeved on the bidirectional lead screw, and a second bevel gear is sleeved on the mounting shaft. The second bevel gear meshes with the first bevel gear. A first sealing plug is rotatably installed on the positioning frame, and the first sealing plug is corresponding to the mounting shaft.
[0008] As a further preferred embodiment of this technical solution, the two sets of bidirectional lead screws are respectively configured to correspond to the two sets of first adjusting rods and second adjusting rods. The two ends of the bidirectional lead screws pass through the two sets of corresponding first adjusting rods or second adjusting rods and are respectively threaded to the corresponding first adjusting rods or second adjusting rods.
[0009] As a further preferred embodiment of this technical solution, each of the four sets of clamping blocks has two sets of symmetrically distributed clamping plates slidably installed inside. Each clamping block is embedded with a sealing strip, which is fixedly connected to the clamping block and the two sets of clamping plates respectively. Each clamping block has two sets of symmetrically distributed slides slidably installed inside. Each slide is fixedly connected to the two sets of clamping plates respectively. Each slide is fixedly installed with a rack, and a gear is provided between the two sets of first racks. Each clamping block has two sets of slide rods fixedly installed inside. Each clamping block is threaded with a second sealing plug, which is correspondingly set with the handle.
[0010] As a further preferred embodiment of this technical solution, the gear is meshed with two sets of racks respectively, the gear is rotatably connected to the clamping block via a handle, a torsion spring is sleeved on the handle, and the two ends of the torsion spring are fixedly connected to the gear and the clamping block respectively.
[0011] As a further preferred embodiment of this technical solution, the slide is slidably sleeved with the corresponding slide rod, and two sets of symmetrically distributed springs are sleeved on the slide rod. The two ends of the two sets of springs are respectively fixedly connected to the corresponding slide and the clamping block.
[0012] This utility model provides a clamping fixture for electroplating heat sinks in new energy vehicles, which has the following beneficial effects:
[0013] (1) This utility model drives the positioning frame and the heat sink fixed in the clamping block to rotate synchronously in the mounting frame through the drive wheel, and the mounting frame can drive the positioning frame to rotate in the second telescopic rod, so that the heat sink can achieve multi-directional movement during the electroplating process, effectively avoiding the problem of uneven plating caused by traditional fixed clamping or unidirectional rotation. Through the design of the first telescopic rod, the second telescopic rod and the sealing ring, the clamping height can be flexibly adjusted, avoiding plating solution residue caused by vertical hoisting.
[0014] (2) This utility model adjusts the distance between the two sets of first adjustment rods or second adjustment rods respectively by using a bidirectional screw to adjust the distance between the four sets of clamping blocks. This allows the device to adapt to heat sinks of different sizes and shapes, reduce changeover time, and improve batch production efficiency. In addition, each of the four sets of clamping blocks is equipped with two sets of spring reset clamping plates and sealing strips to reduce the penetration of plating solution into the clamping gap, reduce cleaning difficulty and pollution risk, and extend the service life of the fixture. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0016] Figure 2 This is a schematic diagram showing the structural separation of the mounting bracket and positioning frame of this utility model;
[0017] Figure 3 For the present utility model Figure 2 Enlarged view of the structure at point A;
[0018] Figure 4 This is a schematic diagram showing the separation of the clamping block and clamping plate of this utility model;
[0019] Figure 5 For the present utility model Figure 4 Enlarged view of the structure at point -B;
[0020] In the diagram: 1. Mounting rod; 2. First telescopic rod; 3. Second telescopic rod; 4. Mounting bracket; 5. Positioning frame; 6. Sealing ring; 7. Gear ring; 8. Drive wheel; 9. Clamping block; 10. First adjusting rod; 11. Second adjusting rod; 12. Double-acting screw; 13. Mounting shaft; 14. First bevel gear; 15. Second bevel gear; 16. First sealing plug; 17. Clamping plate; 18. Second sealing plug; 19. Slide; 20. Rack; 21. Gear; 22. Handle; 23. Torsion spring; 24. Slide rod; 25. Spring; 26. Screw; 27. Keyway; 28. Screw tube; 29. Key block; 30. Sealing strip. Detailed Implementation
[0021] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.
[0022] This utility model provides a technical solution: such as Figure 1 , Figure 2 and Figure 3 As shown in this embodiment, a clamping fixture for electroplating heat sinks of new energy vehicles includes a mounting rod 1 and a mounting frame 4. A first telescopic rod 2 is slidably installed inside the mounting rod 1, and a second telescopic rod 3 is slidably installed inside the first telescopic rod 2. The mounting frame 4 is rotatably installed inside the second telescopic rod 3. A positioning frame 5 is rotatably installed inside the mounting frame 4, and a toothed ring 7 is sleeved on the positioning frame 5. A drive wheel 8 is rotatably installed inside the mounting frame 4, and the drive wheel 8 meshes with the toothed ring 7. Four sets of symmetrically distributed clamping blocks 9 are provided inside the positioning frame 5. Two sets of symmetrically distributed first adjusting rods 10 are slidably installed inside the positioning frame 5. The device is equipped with two sets of symmetrically distributed second adjusting rods 11, and two sets of first adjusting rods 10 and second adjusting rods 11 are perpendicularly distributed. Four sets of clamping blocks 9 are slidably connected to one set of first adjusting rods 10 and one set of second adjusting rods 11, respectively. The mounting frame 4 is provided with two sets of symmetrically distributed sealing rings 6, which are fixedly connected to the mounting frame 4 and the positioning frame 5, respectively. A screw 26 is rotatably installed inside the mounting rod 1, and a screw tube 28 is rotatably installed inside the first telescopic rod 2. The lower end of the screw 26 passes through the first telescopic rod 2 and is threadedly connected to the first telescopic rod 2. The lower end of the screw tube 28 passes through the second telescopic rod 3 and is threadedly connected to the second telescopic rod 3. The screw 26 has two sets of symmetrically distributed keyways 27, and the screw tube 28 has two sets of symmetrically distributed key blocks 29. The key blocks 29 are corresponding to the keyways 27. The screw tube 28 is slidably connected to the screw 26 through the key blocks 29 and keyways 27. The motor in the mounting frame 4 drives the drive wheel 8 to rotate. The meshing transmission between the drive wheel 8 and the gear ring 7 drives the heat sink held by the positioning frame 5 and the four sets of clamping blocks 9 to rotate within the mounting frame 4. At the same time, the mounting frame 4 can rotate freely on the second telescopic rod 3, forming a compound rotational motion. This structure enables the heat sink to achieve multi-directional dynamic adjustment in the electroplating tank, ensuring uniform plating on the surface of complex structures. Even coverage avoids electroplating dead zones caused by traditional fixed clamping or unidirectional rotation. The motor in the mounting rod 1 drives the screw 26 to rotate, and the keyway 27 and key block 29 make the screw tube 28 rotate synchronously with the screw 26. Under the limiting action of the mounting rod 1, the first telescopic rod 2 slides in the mounting rod 1, and under the limiting action of the first telescopic rod 2, the second telescopic rod 3 slides in the first telescopic rod 2. This realizes the height adjustment of the heat sink fixed in the mounting frame 4 and the positioning frame 5. With the sealing ring 6, the plating solution is prevented from seeping into the mounting frame 4. It can adapt to the needs of electroplating tanks of different depths and reduce the accumulation of residual liquid.
[0023] like Figure 4 and Figure 5As shown, two sets of vertically distributed bidirectional lead screws 12 are rotatably mounted inside the positioning frame 5. Two sets of mounting shafts 13, corresponding to the bidirectional lead screws 12, are also rotatably mounted inside the positioning frame 5. A first bevel gear 2114 is sleeved on the bidirectional lead screw 12, and a second bevel gear 2115 is sleeved on the mounting shaft 13. The second bevel gear 2115 meshes with the first bevel gear 2114. A first sealing plug 16 is rotatably mounted on the positioning frame 5, corresponding to the mounting shaft 13. The bidirectional lead screws 12 are respectively associated with two sets of first adjusting rods 10 and second adjusting rods 11. Both ends of the bidirectional lead screws 12 pass through two... Each set of four clamping blocks 9 has a corresponding first adjusting rod 10 or second adjusting rod 11, which is threadedly connected to the corresponding first adjusting rod 10 or second adjusting rod 11. Two sets of symmetrically distributed clamping plates 17 are slidably installed inside each clamping block 9. Sealing strips 30 are embedded in each clamping block 9, and the sealing strips 30 are fixedly connected to the clamping block 9 and the two sets of clamping plates 17. Two sets of symmetrically distributed slides 19 are slidably installed inside each clamping block 9, and the two sets of slides 19 are fixedly connected to the two sets of clamping plates 17. A rack 20 is fixedly installed on each of the two sets of slides 19, and a gear 21 is provided between the two sets of first racks 20. Two sets of sliding rods 24 are fixedly installed inside each clamping block 9. A second sealing plug 18 is threaded onto the handle 22. Gear 21 meshes with two sets of racks 20. Gear 21 is rotatably connected to clamping block 9 via handle 22. A torsion spring 23 is fitted onto handle 22, with both ends of the torsion spring 23 fixedly connected to gear 21 and clamping block 9, respectively. Slide 19 is slidably fitted onto corresponding slide rod 24. Two symmetrically distributed springs 25 are fitted onto slide rod 24, with both ends of the two springs 25 fixedly connected to corresponding slide 19 and clamping block 9, respectively. Shaft 13 in positioning frame 5 rotates, engaging with first bevel gear 2114 and second bevel gear 2115. The two sets of bidirectional lead screws 12 rotate synchronously, driving the vertically distributed first adjusting rod 10 and second adjusting rod 11 to move in opposite directions, thereby precisely adjusting the spacing of the four sets of clamping blocks 9 to accommodate heat sinks of different sizes. The clamping blocks 9 use a gear 21 and rack 20 linkage mechanism. Rotating the handle 22 can synchronously control the two sets of clamping plates 17 to symmetrically clamp the heat sink. The torsion spring 23 provides automatic reset force to ensure clamping stability. The sealing strip 30 and spring 25 buffer design further isolate the plating solution from entering the clamping surface, reducing cleaning difficulty. The modular structure design significantly shortens changeover time and improves mass production efficiency.
[0024] This utility model provides a clamping fixture for electroplating heat sinks of new energy vehicles. The specific working principle is as follows: A motor in the mounting frame 4 drives a drive wheel 8 to rotate. The meshing transmission between the drive wheel 8 and the gear ring 7 drives the heat sink held by the positioning frame 5 and four sets of clamping blocks 9 to rotate within the mounting frame 4. Simultaneously, the mounting frame 4 can freely rotate on the second telescopic rod 3, forming a compound rotational motion. This structure enables multi-directional dynamic adjustment of the heat sink in the electroplating tank, ensuring uniform coating coverage of complex surface structures and avoiding electroplating dead angles caused by traditional fixed clamping or unidirectional rotation. A motor in the mounting rod 1 drives a screw 26 to rotate, which, in conjunction with the keyway 27 and key block 29, causes the screw tube 28 to rotate synchronously with the screw 26. Under the limiting action of the mounting rod 1, the first telescopic rod 2 slides within the mounting rod 1. Under the limiting action of the first telescopic rod 2, the second telescopic rod 3 slides within the first telescopic rod 2, thus achieving the clamping of the mounting frame 4 and the positioning frame. The height adjustment of the fixed heat sink in frame 5, together with the sealing ring 6, prevents the plating solution from seeping into the mounting bracket 4. It can adapt to the needs of electroplating tanks of different depths and reduce the accumulation of residual liquid. The rotation of the mounting shaft 13 in the positioning frame 5, together with the first bevel gear 2114 and the second bevel gear 2115, makes the two sets of bidirectional lead screws 12 rotate synchronously. This synchronously drives the vertically distributed first adjusting rod 10 and second adjusting rod 11 to move in opposite directions, thereby precisely adjusting the spacing of the four sets of clamping blocks 9 to adapt to heat sinks of different sizes. The clamping block 9 adopts a gear 21 and rack 20 linkage mechanism. Rotating the handle 22 can synchronously control the two sets of clamping plates 17 to symmetrically clamp the heat sink. The torsion spring 23 provides automatic reset force to ensure clamping stability. The sealing strip 30 and spring 25 buffer design further isolate the plating solution from entering the clamping surface and reduce the cleaning difficulty. The modular structure design significantly shortens the changeover time and improves the efficiency of mass production.
[0025] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A clamping fixture for electroplating heat sinks of new energy vehicles, comprising a mounting rod (1) and a mounting bracket (4), characterized in that: The first telescopic rod (2) is slidably installed inside the mounting rod (1), and the second telescopic rod (3) is slidably installed inside the first telescopic rod (2). The mounting frame (4) is rotatably installed inside the second telescopic rod (3). The positioning frame (4) is rotatably installed inside the mounting frame (4). A toothed ring (7) is sleeved on the positioning frame (5). A drive wheel (8) is rotatably installed inside the mounting frame (4). The drive wheel (8) is meshed with the toothed ring (7). The positioning frame (5) is provided with four sets of symmetrically distributed clamping blocks (9). The positioning frame (5) is slidably installed with two sets of symmetrically distributed first adjusting rods (10). The positioning frame (5) is slidably installed with two sets of symmetrically distributed second adjusting rods (11). The two sets of first adjusting rods (10) and second adjusting rods (11) are perpendicularly distributed. The four sets of clamping blocks (9) are slidably connected to one set of first adjusting rods (10) and one set of second adjusting rods (11), respectively.
2. The clamping fixture for electroplating heat sinks of new energy vehicles according to claim 1, characterized in that: The mounting bracket (4) is provided with two sets of symmetrically distributed sealing rings (6). The sealing rings (6) are fixedly connected to the mounting bracket (4) and the positioning frame (5) respectively. A screw (26) is rotatably installed in the mounting rod (1). A screw tube (28) is rotatably installed in the first telescopic rod (2). The lower end of the screw (26) passes through the first telescopic rod (2) and is threadedly connected to the first telescopic rod (2). The lower end of the screw tube (28) passes through the second telescopic rod (3) and is threadedly connected to the second telescopic rod (3). Two sets of symmetrically distributed keyways (27) are provided on the screw (26). Two sets of symmetrically distributed key blocks (29) are provided in the screw tube (28). The key blocks (29) are correspondingly set with the keyways (27). The screw tube (28) is slidably sleeved with the screw (26) through the key blocks (29) and the keyways (27).
3. The clamping fixture for electroplating heat sinks of new energy vehicles according to claim 1, characterized in that: Two sets of vertically distributed bidirectional lead screws (12) are rotatably installed inside the positioning frame (5). Two sets of mounting shafts (13) corresponding to the bidirectional lead screws (12) are rotatably installed inside the positioning frame (5). A first bevel gear (14) is sleeved on the bidirectional lead screw (12). A second bevel gear (15) is sleeved on the mounting shaft (13). The second bevel gear (15) meshes with the first bevel gear (14). A first sealing plug (16) is rotatably installed on the positioning frame (5). The first sealing plug (16) is correspondingly arranged with the mounting shaft (13).
4. The clamping fixture for electroplating heat sinks of new energy vehicles according to claim 3, characterized in that: The two sets of bidirectional lead screws (12) are respectively set with the two sets of first adjusting rods (10) and second adjusting rods (11). The two ends of the bidirectional lead screws (12) pass through the two sets of corresponding first adjusting rods (10) or second adjusting rods (11) and are respectively threaded to the corresponding first adjusting rods (10) or second adjusting rods (11).
5. A clamping fixture for electroplating heat sinks of new energy vehicles according to claim 1, characterized in that: Each of the four sets of clamping blocks (9) has two sets of symmetrically distributed clamping plates (17) slidably installed inside. Each clamping block (9) has a sealing strip (30) embedded in it. The sealing strip (30) is fixedly connected to the clamping block (9) and the two sets of clamping plates (17) respectively. Each clamping block (9) has two sets of symmetrically distributed slides (19) slidably installed inside it. Each slide (19) is fixedly connected to the two sets of clamping plates (17) respectively. Each slide (19) has a rack (20) fixedly installed on it. A gear (21) is provided between the two sets of racks (20). Each clamping block (9) has two sets of slide rods (24) fixedly installed inside it. Each clamping block (9) has a second sealing plug (18) threaded onto it. The second sealing plug (18) is correspondingly set with the handle (22).
6. The clamping fixture for electroplating heat sinks of new energy vehicles according to claim 5, characterized in that: The gear (21) is meshed with two sets of racks (20) respectively. The gear (21) is rotatably connected to the clamp (9) through the handle (22). A torsion spring (23) is sleeved on the handle (22). The two ends of the torsion spring (23) are fixedly connected to the gear (21) and the clamp (9) respectively.
7. A clamping fixture for electroplating heat sinks of new energy vehicles according to claim 5, characterized in that: The slide (19) is slidably connected to the corresponding slide rod (24). Two sets of symmetrically distributed springs (25) are sleeved on the slide rod (24). The two ends of the two sets of springs (25) are respectively fixedly connected to the corresponding slide (19) and the clamp (9).