Fixture for PVD (Physical Vapor Deposition) coating

By limiting the movement path and structure of the clamping block through a motor-driven gear transmission system, the problem of misalignment of the clamping block in PVD coating fixtures is solved, achieving stable clamping and precise positioning of the workpiece, and improving the uniformity of coating and equipment efficiency.

CN223496596UActive Publication Date: 2025-10-31SUZHOU DINGLI COATING CO LTD
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Patent Information

Application Number
CN202422913684.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-28
Publication Date
2025-10-31
Estimated Expiration
2034-11-28

AI Technical Summary

Technical Problem

Existing PVD coating fixtures are prone to relative position misalignment when the clamping blocks are repeatedly opened and closed and clamped, resulting in inaccurate workpiece positioning and affecting coating uniformity.

Method used

The motor-driven gear transmission system restricts the movement path and structure of the clamping block through the cooperation of the gear rack and clamping block, ensuring its precise positioning. The motor controls the rotation direction of the fixture to adjust the position and orientation of the workpiece.

Benefits of technology

It achieves stable clamping and precise positioning of the workpiece, prevents shaking and displacement, and improves the uniformity of coating and the efficiency of equipment use.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of mechanical manufacturing, and discloses a PVD (Physical Vapor Deposition) coating clamp which comprises a shell, the left end of the shell is fixedly connected with a fixed shell, the rear side of the fixed shell is fixedly connected with a motor II, and the output end of the motor II is fixedly connected with a rotating disc; a first fixing column is fixedly connected to the position, close to the edge, of the front side of the rotating disc, the rear end of the fixing rod is fixedly connected with the rear side of the interior of the shell, a gear strip is connected to the outer wall of the circular gear in a meshed mode, a clamping block is fixedly connected to the right side of the gear strip, and a rotating mechanism is arranged at the bottom of the shell. And the rotating mechanism is used for rotating the clamp. According to the clamping device, under the output action of the second motor, the clamping blocks are driven to move, the clamping blocks on the two sides can clamp a workpiece to keep the workpiece stable, in this way, the clamping blocks are accurately positioned by limiting the moving path and structure of the clamping blocks, and the unreasonable shaking condition of the clamping blocks is prevented.
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Description

Technical Field

[0001] This utility model relates to the field of mechanical manufacturing technology, and in particular to a fixture for PVD coating. Background Technology

[0002] PVD coating, or Physical Vapor Deposition, is an advanced process technology for preparing thin film coatings on material surfaces. PVD coating is based on physical processes to achieve the gas-phase transfer of substances and deposition on the surface of substrate materials. Common physical mechanisms include evaporation and sputtering. Evaporation coating first heats the coating material to a high temperature to evaporate and vaporize it, forming gaseous atoms or molecules. These gaseous particles condense and deposit on the surface of the workpiece, gradually forming a thin film coating. Sputtering coating uses high-energy particles to bombard a target material, causing the atoms or molecules on the target surface to be deposited on the workpiece surface to form a film layer. In the PVD coating process, in order to ensure that the coating material is deposited evenly on all parts of the workpiece surface, the workpiece needs to be in a precise and fixed position. Using a fixture can accurately position the workpiece and maintain a stable distance and angle relationship with the coating source. At this time, a PVD coating fixture is required.

[0003] Existing PVD coating fixtures mainly consist of a main frame, clamping parts, and connecting parts. They apply appropriate clamping force to the workpiece through the clamping parts. When performing PVD coating on a large number of workpieces, the fixture needs to coat thousands of small chip pin components. The clamping blocks of the fixture repeatedly undergo opening and closing and clamping actions, which can easily cause misalignment between the relative positions of the two clamping blocks. To solve the above problem, the existing technology only installs an elastic vibration damping device at the connection between the fixture and the equipment to prevent the clamping blocks from being misaligned due to vibration. However, it does not solve the problem by limiting the movement path and structure of the clamping blocks, and therefore cannot enable the fixture to position the workpiece according to the preset precise position and direction. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a PVD coating fixture, which aims to improve the problem that the relative positions of the two clamping blocks are easily misaligned when the clamping blocks of the fixture repeatedly undergo opening and closing and clamping actions.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a PVD coating fixture, comprising a housing, a fixed shell fixedly connected to the left end of the housing, a second motor fixedly connected to the rear side of the fixed shell, a rotating disk fixedly connected to the output end of the second motor, a fixed post fixedly connected to the front side of the rotating disk near its edge, a movable rod rotatably connected to the outer wall of the first fixed post, a second fixed post rotatably connected to both the upper and lower sides of the other end of the movable rod, a rotating rod rotatably connected to the other end of a plurality of second fixed posts, a circular gear fixedly connected to the other end of the rotating rod, a fixed rod rotatably connected to the middle of the circular gear, the rear end of the fixed rod fixedly connected to the rear side of the inner side of the housing, a gear rack meshing with the outer wall of the circular gear, a clamping block fixedly connected to the right side of the gear rack, a sliding connection between the outer wall of the gear rack and the right end of the housing, and a rotating mechanism provided at the bottom of the housing for rotating the fixture.

[0006] As a further description of the above technical solution:

[0007] The rotating mechanism includes a support rod, the bottom of the outer shell is fixedly connected to the top of the support rod, a rotating disk is fixedly connected to the bottom of the support rod, a base is rotatably connected to the outer wall of the rotating disk, and fixing teeth are fixedly connected to the outer wall of the rotating disk. A fixing plate is fixedly connected to the bottom of the base, a motor is fixedly connected to the bottom end of the fixing plate, a transmission wheel is fixedly connected to the output end of the motor, a fixing block is fixedly connected to the outer wall of the transmission wheel, and the outer wall of the fixing block is slidably connected to the outer wall of the fixing teeth.

[0008] As a further description of the above technical solution:

[0009] A second control switch is fixedly connected to the front side of the fixed housing, and the second control switch is electrically connected to the second motor.

[0010] As a further description of the above technical solution:

[0011] The front and rear ends of the outer shell are fixedly connected to fixed posts three, and the other ends of the multiple fixed posts three are fixedly connected to handles.

[0012] As a further description of the above technical solution:

[0013] A control board is fixedly connected to the front side of the chassis, and adjustment buttons are slidably connected to the left and right sides of the front end of the control board.

[0014] As a further description of the above technical solution:

[0015] The chassis has four fixed support columns at its bottom corners, and the bottoms of the support columns are fixedly connected to bases.

[0016] As a further description of the above technical solution:

[0017] A control switch is fixedly connected to the front side of the chassis, and the control switch is electrically connected to the motor.

[0018] As a further description of the above technical solution:

[0019] Protective corner sleeves are fixedly connected to the four corners of the chassis, and pads are fixedly connected to the bottom of the clamping block.

[0020] This utility model has the following beneficial effects:

[0021] 1. In this utility model, when clamping and fixing the coated workpiece, the second motor is started first. Under the output of the second motor, the gear racks on both sides will move in opposite directions and drive the clamping blocks to move, so that the clamping blocks on both sides can clamp the workpiece to keep the workpiece stable. In this way, by limiting the movement path and structure of the clamping blocks, the clamping blocks are accurately positioned, preventing unreasonable shaking or displacement, so that they can stably apply clamping force to the workpiece.

[0022] 2. In this utility model, when rotating the fixture, motor one is started first. Under the output of motor one, the transmission wheel is rotated. Under the rotation of the transmission wheel, the fixed block is pressed against the fixed teeth, and the rotating disk is driven to rotate. By adjusting the direction of the fixture, the position and orientation of multiple workpieces can be reasonably arranged, which can improve the efficiency of the entire equipment. Attached Figure Description

[0023] Figure 1 This is a front perspective view of a PVD coating fixture proposed in this utility model;

[0024] Figure 2 This is a schematic diagram of the fixing shell structure of a PVD coating fixture proposed in this utility model;

[0025] Figure 3 This is a schematic diagram of a circular gear structure for a PVD coating fixture proposed in this utility model.

[0026] Figure 4 This is a schematic diagram of the rotating disk structure of a PVD coating fixture proposed in this utility model;

[0027] Figure 5 This is a schematic diagram of the transmission wheel structure of a PVD coating fixture proposed in this utility model.

[0028] Legend:

[0029] 1. Outer shell; 2. Rotating mechanism; 201. Support rod; 202. Rotating disk; 203. Chassis; 204. Fixed gear; 205. Fixed plate; 206. Motor 1; 207. Transmission wheel; 208. Fixed block; 3. Fixed shell; 4. Motor 2; 5. Rotating disk; 6. Fixed column 1; 7. Moving rod; 8. Fixed column 2; 9. Rotating rod; 10. Circular gear; 11. Fixed rod; 12. Gear rack; 13. Clamping block; 14. Pad; 15. Adjustment button; 16. Control switch 1; 17. Control switch 2; 18. Protective corner sleeve; 19. Support column; 20. Base; 21. Fixed column 3; 22. Handle; 23. Control panel. Detailed Implementation

[0030] 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.

[0031] Please see the appendix Figure 1 - Appendix Figure 3 This utility model provides an embodiment of a PVD coating fixture, comprising a housing 1, a fixed housing 3 fixedly connected to the left end of the housing 1, a motor 4 fixedly connected to the rear side of the fixed housing 3, a rotating disk 5 fixedly connected to the output end of the motor 4, a fixed post 6 fixedly connected to the front edge of the rotating disk 5, a rotating disk 5 fixedly connected to the output port of the motor 4, a fixed post 6 fixed near the front edge of the rotating disk 5, a movable rod 7 rotatably connected to the outer wall of the fixed post 6, a fixed post 8 rotatably connected to the upper and lower sides of the other end of the movable rod 7, a rotating rod 9 rotatably connected to the other end of the multiple fixed posts 8, a circular gear 10 fixedly connected to the other end of the rotating rod 9, and a circular gear 10 fixedly connected to the other end of the fixed post 8. A rotating rod 9 is rotatably connected to the other end of the rotating rod 9. A circular gear 10 is fixedly connected to the other end of the rotating rod 9. A fixed rod 11 is rotatably connected to the middle of the circular gear 10. The rear end of the fixed rod 11 is fixedly connected to the rear inner side of the outer casing 1. A gear rack 12 is meshed with the outer wall of the circular gear 10. A clamping block 13 is fixedly connected to the right side of the gear rack 12. The outer wall of the gear rack 12 is slidably connected to the right end of the outer casing 1. The outer side wall of the gear rack 12 is slidably connected to the right end of the outer casing 1. A rotating mechanism 2 is provided at the bottom of the outer casing 1. The rotating mechanism 2 is used to rotate the clamp.

[0032] Please see the appendix Figure 4 - Appendix Figure 5 One embodiment of this utility model provides: the rotating mechanism 2 includes a support rod 201, the bottom of the outer shell 1 is fixedly connected to the top of the support rod 201, the top of the support rod 201 is fixedly connected to the bottom of the outer shell 1, and a rotating disk 202 is fixedly connected to the bottom of the support rod 201, ensuring the stability and reliability of the rotating disk 202. A base 203 is rotatably connected to the outer wall of the rotating disk 202, and fixing teeth 204 are fixedly connected to the outer wall of the rotating disk 202. The fixing teeth 204 play a key role in the rotation process. A fixing plate 205 is fixedly connected to the bottom of 203. A motor 206 is fixedly connected to the bottom end of the fixing plate 205. A transmission wheel 207 is fixedly connected to the output end of the motor 206. A fixing block 208 is fixedly connected to the outer wall of the transmission wheel 207. The outer wall of the fixing block 208 is slidably connected to the outer wall of the fixing tooth 204. The fixing block 208 is fixedly connected to the outer wall of the transmission wheel 207. The outer wall of the fixing block 208 is slidably connected to the outer wall of the fixing tooth 204, ensuring smooth transmission between the transmission wheel 207 and the rotating disk 202.

[0033] Please see the appendix Figure 1 - Appendix Figure 2 In one embodiment of this utility model: a control switch 217 is fixedly connected to the front side of the fixed shell 3. The control switch 217 is electrically connected to the motor 24 to ensure signal transmission and functional coordination between them. Fixed posts 31 are fixedly connected to the front and rear ends of the shell 1. A handle 22 is fixedly connected to the other end of the multiple fixed posts 31. The handle 22 allows the user to easily hold and operate the device. A control board 23 is fixedly connected to the front side of the chassis 203. Adjustment buttons 15 are slidably connected to the left and right sides of the front end of the control board 23. The adjustment buttons 15 allow the user to adjust various parameters of the device by sliding these adjustment buttons 15 to meet different usage needs.

[0034] Please see the appendix Figure 2 - Appendix Figure 3 In one embodiment of this utility model, support columns 19 are fixedly connected to the four corners of the bottom of the chassis 203, and bases 20 are fixedly connected to the bottom of the multiple support columns 19. The bases 20 are further fixedly connected to the bottom of the support columns 19 to ensure the stability and robustness of the entire structure. A control switch 16 is fixedly connected to the front of the chassis 203. The control switch 16 is electrically connected to the motor 206. The electrical connection between the control switch 16 and the motor 206 ensures the normal operation of the equipment. Protective corner sleeves 18 are fixedly connected to the four corners of the chassis 203. A pad 14 is fixedly connected to the bottom of the clamping block 13. The pad 14 increases the comfort and stability of the equipment. The model of motor 206 and motor 4 is Y80M1-2.

[0035] Working principle: When clamping and fixing the coated workpiece, motor 4 is started first. Under the output of motor 4, the rotating disk 5 will rotate. The rotation of the rotating disk 5 will cause the fixing column 6 to move. Under the movement of the fixing column 6, the circular gears 10 on both sides will rotate, which will cause the gear racks 12 on both sides to move in opposite directions and drive the clamping block 13 to move. This allows the clamping blocks 13 on both sides to clamp the workpiece to keep it stable. By limiting the movement path and structure of the clamping block 13, it is precisely positioned, preventing unreasonable shaking or offset of the clamping block 13, so that it can stably apply clamping force to the workpiece.

[0036] When rotating the fixture, motor 206 is started first. Under the output of motor 206, the transmission wheel 207 is rotated. The rotation of the transmission wheel 207 causes the fixed block 208 to press against the fixed tooth 204, and drives the rotating disk 202 to rotate. By adjusting the direction of the fixture, the position and orientation of multiple workpieces can be reasonably arranged, which improves the efficiency of the entire equipment.

[0037] 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 PVD coating fixture, comprising a housing (1), characterized in that: A fixed shell (3) is fixedly connected to the left end of the outer shell (1). A motor (4) is fixedly connected to the rear side of the fixed shell (3). A rotating disk (5) is fixedly connected to the output end of the motor (4). A fixed post (6) is fixedly connected to the front side of the rotating disk (5) near its edge. A moving rod (7) is rotatably connected to the outer wall of the fixed post (6). Fixed posts (8) are rotatably connected to the upper and lower sides of the other end of the moving rod (7). A rotating rod (9) is rotatably connected to the other end of the multiple fixed posts (8). A circular gear (10) is fixedly connected to the other end. A fixed rod (11) is rotatably connected to the middle of the circular gear (10). The rear end of the fixed rod (11) is fixedly connected to the rear side of the inner side of the outer shell (1). A gear rack (12) is meshed with the outer wall of the circular gear (10). A clamping block (13) is fixedly connected to the right side of the gear rack (12). The outer wall of the gear rack (12) is slidably connected to the right end of the outer shell (1). A rotating mechanism (2) is provided at the bottom of the outer shell (1). The rotating mechanism (2) is used to rotate the clamp.

2. The PVD coating fixture according to claim 1, characterized in that: The rotating mechanism (2) includes a support rod (201). The bottom of the outer shell (1) is fixedly connected to the top of the support rod (201). A rotating disk (202) is fixedly connected to the bottom of the support rod (201). A chassis (203) is rotatably connected to the outer wall of the rotating disk (202). Fixing teeth (204) are fixedly connected to the outer wall of the rotating disk (202). A fixing plate (205) is fixedly connected to the bottom of the chassis (203). A motor (206) is fixedly connected to the bottom end of the fixing plate (205). A transmission wheel (207) is fixedly connected to the output end of the motor (206). A fixing block (208) is fixedly connected to the outer wall of the transmission wheel (207). The outer wall of the fixing block (208) is slidably connected to the outer wall of the fixing teeth (204).

3. The PVD coating fixture according to claim 1, characterized in that: The front side of the fixed shell (3) is fixedly connected to the control switch (17), and the control switch (17) is electrically connected to the motor (4).

4. A PVD coating fixture according to claim 1, characterized in that: The front and rear ends of the outer shell (1) are fixedly connected to three fixing posts (21), and the other ends of the multiple fixing posts (21) are fixedly connected to handles (22).

5. A PVD coating fixture according to claim 2, characterized in that: A control board (23) is fixedly connected to the front side of the chassis (203), and adjustment buttons (15) are slidably connected to the left and right sides of the front end of the control board (23).

6. A PVD coating fixture according to claim 2, characterized in that: The chassis (203) has four corners at the bottom that are fixedly connected to support columns (19), and the bottoms of the multiple support columns (19) are fixedly connected to bases (20).

7. A PVD coating fixture according to claim 2, characterized in that: A control switch (16) is fixedly connected to the front side of the chassis (203), and the control switch (16) is electrically connected to the motor (206).

8. A PVD coating fixture according to claim 2, characterized in that: Protective corner sleeves (18) are fixedly connected to the four corners of the chassis (203), and a pad (14) is fixedly connected to the bottom of the clamping block (13).