Back-in type anti-collision coating clamp for PVD (Physical Vapor Deposition)

Abstract

The utility model relates to the technical field of film coating clamps, in particular to a back-in type anti-bumping film coating clamp for PVD (Physical Vapor Deposition), which comprises a cross-shaped supporting plate for bearing a film coating product, three end parts of the cross-shaped supporting plate are respectively provided with a limiting block for limiting the product, the other end part of the cross-shaped supporting plate is in threaded connection with a pressing block through a screw, and the other end part of the cross-shaped supporting plate is in threaded connection with the pressing block. The width of the contact face of the pressing block and the film coating product is smaller than the thickness of the film coating product, and the width of the contact face of each limiting block and the film coating product is smaller than the thickness of the film coating product. The clamp is simple in structure and convenient to operate, and a coated product is pressed by the pressing block, so that the coated product cannot fall off from the clamp, the coated product does not need an additional fixing structure, the cost is reduced, and the working process is reduced; meanwhile, the width of the contact surface of the clamp and the coated product is smaller than the thickness of the product, so that the damage to the optical surface of the coated product and the edge of the optical surface caused by contact of the coating clamp is eliminated.

Description

Technical Field

[0001] This utility model relates to the field of coating fixture technology, specifically to a back-entry anti-collision coating fixture for PVD. Background Technology

[0002] In the thin film industry, coating fixtures are needed to hold products during coating. Fixtures can speed up pre-coating preparation time, reduce the need for additional structures on the product itself, and reduce the number of placement steps, making product placement more convenient. Currently, most coating fixtures place products with the optical surface facing down. ① If the product itself does not have any additional structures besides the optical surface to support and fix it when placed in the fixture, then the product design needs to consider adding support and fixing points, which are then cut off after coating. This increases costs and adds to the workflow. ② Regardless of whether placement is done manually or automatically by a robot, the optical surface and edges of the coated product will be damaged by contact with the fixture, requiring extremely high precision for both manual and automated placement. Utility Model Content

[0003] The purpose of this invention is to provide a back-entry anti-collision coating fixture for PVD.

[0004] This utility model provides the following technical solution:

[0005] This utility model proposes a back-entry anti-collision coating fixture for PVD, including a cross-shaped support plate for supporting the coated product. Each of the three ends of the cross-shaped support plate is provided with a limiting block for limiting the product, and the other end is connected to a pressure block by a screw thread. The contact surface width between the pressure block and the coated product is smaller than the thickness of the coated product, and the contact surface width between each of the limiting blocks and the coated product is smaller than the thickness of the coated product.

[0006] Furthermore, both the pressing block and the limiting block have protrusions extending from their middle portions, making both the pressing block and the limiting block convex in shape.

[0007] Furthermore, the screw is a semi-threaded screw, with the unthreaded part of the semi-threaded screw passing through the pressure block, and the threaded end being threadedly connected to the cross-shaped support plate.

[0008] Furthermore, the outer end of the screw has a knob.

[0009] Furthermore, the number of screws is two.

[0010] Compared with the prior art, this utility model has a simple structure and is easy to operate. It uses pressure blocks to press the coated product, so that the coated product will not fall off the fixture. This eliminates the need for additional fixing structures for the coated product, reducing costs and streamlining the workflow. At the same time, the width of the contact surface between the fixture and the coated product is less than the thickness of the product, eliminating optical surface damage to the optical surface and its edges caused by contact with the coating fixture. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of this utility model.

[0012] Figure 2 This is a schematic diagram illustrating the actual application of this utility model.

[0013] Figure 3 This is an enlarged schematic diagram of the structure at point A.

[0014] In the diagram, 00-coated product; 01-coated workpiece tray; 1-cross-shaped support plate; 2-limiting block; 3-pressure block; 4-screw; 5-knob. Detailed Implementation

[0015] The following is in conjunction with the appendix Figures 1-3 The present invention will be further described below.

[0016] In one embodiment of the utility model, a back-entry anti-collision coating fixture for PVD includes a cross-shaped support plate 1 for supporting the coated product 00. Each of the three ends of the cross-shaped support plate 1 is provided with a limiting block 2 for limiting the product, and the other end is threadedly connected to a pressure block 3 via a screw 4. The contact surface width h2 between the pressure block and the coated product is less than the thickness h1 of the coated product, and the contact surface width between each limiting block 2 and the coated product is less than the thickness of the coated product 00. This ensures that the optical surface edge of the coated product 00 will not contact the limiting block 2 / pressure block 3, ensuring that the coating fixture will not cause damage to the optical surface when holding the coated product 00. Simultaneously, by screwing the screw 4 onto the pressure block 3 to press the coated product 00 to one side, the coated product 00 will not fall off the fixture, eliminating the need for an additional fixing structure for the coated product 00, reducing costs and streamlining the workflow.

[0017] In one embodiment of this utility model, both the pressing block 3 and the limiting block 2 have protrusions extending from their middle portions, making both the pressing block and the limiting block convex in shape; in practical applications, such as Figure 2 As shown, the protrusions of the pressure block and the limiting block limit the present invention on the coated workpiece disk 01.

[0018] In one embodiment of this utility model, the screw 4 is a semi-threaded screw, with the unthreaded part of the semi-threaded screw passing through the pressure block 3, and the threaded end being threadedly connected to the cross-shaped support plate 1; ensuring that when the screw 4 rotates, it will only screw in / out of the cross-shaped support plate 1, and the pressure block 3 will not rotate with the screw 4.

[0019] In the above embodiment, the outer end of the screw 4 has a knob 5; the screw 4 is rotated by rotating the knob 5.

[0020] In one embodiment of this utility model, the number of screws 4 is two; the pressure block 3 is stabilized to ensure that the relative position of the pressure block 3 and the screws 4 remains unchanged.

[0021] In practical applications, the coated product 00 is placed on the cross-shaped support plate 1, and the screw is further screwed into the cross-shaped support plate 1 by rotating the knob 5, so that the pressure block 3 presses one side of the coated product 00. Then, the fixture that fixes the coated product 00 is placed upside down on the hole of the coated workpiece plate 01 for coating.

[0022] The embodiments of this utility model are given for the purpose of illustration and description. Although embodiments of this utility model have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this utility model. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of this utility model.

Claims

1. A back-entry anti-scratching coating fixture for PVD, characterized in that: The device includes a cross-shaped support plate for supporting the coated product. Each of the three ends of the cross-shaped support plate is provided with a limiting block for limiting the product, and the other end is connected to a pressure block by a screw thread. The contact surface width between the pressure block and the coated product is less than the thickness of the coated product, and the contact surface width between each limiting block and the coated product is less than the thickness of the coated product.

2. A back-entry anti-scratching coating fixture for PVD according to claim 1, characterized in that: Both the pressing block and the limiting block have protrusions extending from their middle portions, making both the pressing block and the limiting block convex in shape.

3. A back-entry anti-scratching coating fixture for PVD according to claim 1, characterized in that: The screw is a semi-threaded screw, with the unthreaded part of the semi-threaded screw passing through the pressure block, and the threaded end being threadedly connected to the cross-shaped support plate.

4. A back-entry anti-scratching coating fixture for PVD according to claim 3, characterized in that: The screw has a knob on its outer end.

5. A back-entry anti-scratching coating fixture for PVD according to claim 1, characterized in that: The number of screws is two.

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