A tool for coating a prism

Abstract

The utility model discloses a kind of tool for prism coating, including frame, bottom plate and locating block, frame and bottom plate detachably connect, frame includes the connecting rod of the end portion of the side rod and the connecting rod of two side rods being disposed in parallel opposition, the bottom of side rod is provided with first recess along length direction, first recess is through with the inside surface of side rod, the bottom surface of first recess is provided with second recess along length direction, second recess is through with the inside surface of side rod, the bottom surface edge of second recess is provided with convex rib;The top surface of locating block is provided with groove, convex rib is embedded in groove, locating block is slidably connected along convex rib and side rod, the bottom of locating block is provided with V-shaped groove for placing prism;Bottom plate is provided with through hole, the bottom surface of the first recess of side rod is provided with mounting hole, bottom plate and side rod are connected by fastener, bottom plate and the bottom surface of prism are attached. The utility model makes the positioning installation of prism more stable, improve reliability, be applicable to different specifications of three-prism coating, wide applicability.

Description

Technical Field

[0001] This utility model relates to the field of prism coating technology, and in particular to a tooling for prism coating. Background Technology

[0002] Prism coating is a type of optical thin film fabrication technology. It involves depositing one or more thin films with specific optical properties on the surface of a prism to control the reflection, transmission, absorption, and scattering of light. Existing prism coating methods typically require coating one face before coating the other, and a single set of tooling is only suitable for one type of prism, limiting its applicability. To coat prisms of different sizes, multiple sets of tooling are needed, increasing production costs. Utility Model Content

[0003] To address the aforementioned technical problems, the purpose of this utility model is to provide a tooling for prism coating, applicable to coating various specifications of triangular prisms.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] A tooling for prism coating includes a frame, a base plate, and a positioning block. The frame and base plate are detachably connected. The frame includes parallel side rods and a connecting rod connecting the ends of the two side rods. A first groove is formed along the length of the bottom of each side rod, communicating with the inner surface of the side rod. A second groove is formed along the length of the bottom surface of the first groove, communicating with the inner surface of the side rod. The first and second grooves form a step. A protruding ridge is formed at the bottom edge of the second groove. A groove is formed on the top surface of the positioning block, and the protruding ridge is embedded in the groove. The positioning block is slidably connected to the side rods along the protruding ridge. A V-groove for placing the prism is formed at the bottom of the positioning block. A through hole is formed on the base plate. A mounting hole corresponding to the through hole is formed on the bottom surface of the first groove of the side rod. The base plate and the side rods are connected by fasteners passing through the through hole and entering the mounting hole. The base plate is in contact with the bottom surface of the prism.

[0006] Preferably, a protrusion is provided on the inner side of the connecting rod near the side rod, and the protrusion abuts against the side of the positioning block.

[0007] Preferably, the bottom of the positioning block is provided with a positioning hole, and the base plate is provided with a positioning pin corresponding to the positioning hole.

[0008] Preferably, a third groove is formed between the convex ridge and the bottom surface of the second groove, the groove of the positioning block forms a convex strip on the top surface, the convex strip is embedded in the third groove, and the side surface of the second groove is in contact with the positioning block.

[0009] Preferably, the base plate has a hollowed-out section in the middle and a notch is provided at the edge of the base plate near the connecting rod.

[0010] Preferably, the fastener is provided with a bushing, which is located between the base plate and the side rod.

[0011] Due to the application of the above technical solution, this utility model has the following advantages compared with the prior art:

[0012] This utility model relates to a prism coating fixture, comprising a frame, a base plate, and a positioning block. The frame and base plate are detachably connected. The frame includes parallel side rods and a connecting rod connecting the ends of the two side rods. A first groove is formed along the length of the bottom of each side rod, communicating with the inner surface of the side rod. A second groove is formed along the length of the bottom of the first groove, communicating with the inner surface of the side rod. The first and second grooves form a stepped shape. A raised ridge is provided at the bottom edge of the second groove. A groove is formed on the top surface of the positioning block, with the raised ridge embedded in it. The positioning block slides along the raised ridge and is connected to the side rod. A V-shaped groove for placing the prism is provided at the bottom of the positioning block. A through hole is provided on the base plate, and a mounting hole corresponding to the through hole is provided on the bottom surface of the first groove of the side rod. The base plate and side rod are connected by fasteners passing through the through hole and into the mounting hole. The base plate fits snugly against the bottom surface of the prism. This utility model makes the positioning and installation of the prism more stable, improves reliability, and is suitable for coating prisms of different specifications. It is convenient to use and has wide applicability. Attached Figure Description

[0013] The technical solution of this utility model will be further described below with reference to the accompanying drawings:

[0014] Appendix Figure 1 This is a perspective view of the tooling for prism coating according to this utility model;

[0015] Appendix Figure 2 This is a perspective view of the hidden side connecting rod of the tooling for prism coating of this utility model;

[0016] Appendix Figure 3 This is a perspective view of the positioning block of the tooling for prism coating of this utility model;

[0017] Appendix Figure 4 This is a perspective view of the tooling for prism coating according to this utility model;

[0018] Appendix Figure 5 This is an inverted perspective view of the tooling for prism coating of this utility model;

[0019] Appendix Figure 6 This is a perspective view of the tooling for prism coating according to this utility model.

[0020] The components are: 1. Base plate; 11. Through hole; 12. Locating pin; 13. Notch; 2. Locating block; 21. Groove; 22. V-groove; 23. Locating hole; 24. Raised strip; 3. Side rod; 31. First groove; 311. Mounting hole; 32. Second groove; 33. Third groove; 34. Raised ridge; 4. Connecting rod; 41. Protrusion; 5. Fastener; 6. Prism. Detailed Implementation

[0021] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the scope of protection of the present invention.

[0022] It should be noted that when a component is described as "fixed to" another component, it can be directly on the other component or may have a component in between. When a component is considered "connected to" another component, it can be directly connected to the other component or may have a component in between. When a component is considered "set on" another component, it can be directly set on the other component or may have a component in between. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0023] As attached Figure 1 The tooling for prism coating according to this utility model is shown, including a frame, a base plate 1, and a positioning block 2. The frame and the base plate 1 are detachably connected. The frame includes parallel side rods 3 and connecting rods 4 connecting the ends of the two side rods 3, as shown in the attached figure. Figure 2 As shown, a first groove 31 is formed along the length direction at the bottom of the side rod 3, and the first groove 31 communicates with the inner surface of the side rod 3. A second groove 32 is formed along the length direction on the bottom surface of the first groove 31, and the second groove 32 communicates with the inner surface of the side rod 3. The first groove 31 and the second groove 32 are stepped, and the bottom edge of the second groove 32 has a protruding ridge 34. (See attached image) Figure 3 As shown, the top surface of the positioning block 2 has a groove 21, and a protruding ridge 34 is embedded in the groove 21. The positioning block 2 is slidably connected to the side rod 3 along the protruding ridge 34 to adjust the position of the positioning block 2 and adjust the spacing between adjacent positioning blocks 2. The bottom of the positioning block 2 has a V-shaped groove 22 for placing the prism 6. The included angle between the two surfaces of the prism 6 that contact the V-shaped groove 22 is the same as that of the V-shaped groove 22, so as to fully fit the prism 6 with the V-shaped groove 22 and make the prism 6 stable.

[0024] As attached Figure 5As shown, a through hole 11 is machined on the base plate 1, and a mounting hole 311 corresponding to the through hole 11 is machined on the bottom surface of the first groove 31 of the side rod 3. The base plate 1 and the side rod 3 are connected by fasteners 5 that pass through the through hole 11 and enter the mounting hole 311. The base plate 1 is in contact with the bottom surface of the prism 6. During installation, the frame is inverted, the surface of the prism that needs to be coated is placed in the V-groove 22, and then the base plate 1 is covered so that the base plate 1 is in contact with the prism and the fasteners are connected. The frame can then be flipped back to the front, and the fixture with the prism is sent into the coating machine for coating.

[0025] In this embodiment, a third groove 33 is formed between the protruding ridge 34 and the bottom surface of the second groove 32. The groove 21 of the positioning block 2 forms a protruding strip 24 on the top surface. The protruding strip 24 is embedded in the third groove 33. The side surface of the second groove 32 fits against the positioning block 2. The positioning block 2 and the side rod 3 are interlocked, making the sliding connection more stable. No matter whether the frame is upright or inverted, the positioning block 2 will not tilt or collapse inward. When the base plate 1 is not installed, the positioning block 2 can also be easily removed from the groove so that the required number of positioning blocks 2 can be adjusted according to the number of prisms 6 to be coated.

[0026] A protrusion 41 is formed on the inner side of the connecting rod 4 near the side rod 3. The protrusion 41 abuts against the side of the positioning block 2, so that the positioning block 2 and the connecting rod 4 maintain a certain distance, avoiding the collision between the edge of the larger prism 6 and the frame.

[0027] In another embodiment, as shown in the appendix Figure 4 Appendix Figure 5 As shown, the bottom of the positioning block 2 is machined with a positioning hole 23, and the base plate 1 is equipped with a positioning pin 12 corresponding to the positioning hole 23. When the base plate 1 is connected to the side rod 3, the positioning pin 12 is inserted into the positioning hole 23 to prevent the positioning block 2 from slipping during the movement and flipping of the tooling, so that the positioning and installation of the prism is more stable and the reliability is improved.

[0028] The base plate 1 has a hollowed-out center to reduce the overall weight of the tooling and to make it easier to observe whether the prism is installed correctly when it is inverted. The edge of the base plate 1 near the connecting rod 4 has a notch 13 for easy disassembly of the base plate 1.

[0029] As attached Figure 5 As shown, when the prism to be coated is small, the bottom surface of the base plate 1 and the first groove 31 of the side rod 3 are in contact, and the positioning blocks 2 are arranged more closely. More prisms can be placed in one fixture, as shown in the attached figure. Figure 6As shown, when the prism to be coated is large, the positioning blocks 2 are arranged sparsely. When the fixture is upright, the bottom surface of the prism 6 is lower than the bottom surface of the first groove 31, and there is a gap between the base plate 1 and the side rod 3. Therefore, a bushing of appropriate length can be fitted onto the fastener 5. The bushing is located between the base plate 1 and the side rod 3 to fill the gap, making the connection between the base plate 1 and the side rod 3 more stable. Bushings of different lengths can be selected according to the size of the prism 6. When multiple prisms of different sizes need to be coated, they can also be placed in the same fixture, and multiple bushings of different lengths can be selected to achieve the most suitable installation effect. The depth of the first groove 31 is determined according to the maximum size of the prism to be coated to avoid interference.

[0030] The tooling for prism coating of this utility model is stable and reliable in installation, easy to use, and suitable for coating prisms of different sizes. It has wide applicability and also provides a better comparison scheme for coating tests of prisms of different specifications.

[0031] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A tooling for prism coating, characterized in that: The device includes a frame, a base plate, and a positioning block. The frame and base plate are detachably connected. The frame includes parallel side rods and a connecting rod connecting the ends of the two side rods. The bottom of each side rod has a first groove along its length, which communicates with the inner surface of the side rod. The bottom surface of the first groove has a second groove along its length, which also communicates with the inner surface of the side rod. The first and second grooves are stepped. A protruding ridge is provided at the bottom edge of the second groove. The top surface of the positioning block has a groove, and the protruding ridge is embedded in the groove. The positioning block is slidably connected to the side rod along the protruding ridge. The bottom of the positioning block has a V-shaped groove for placing a prism. The base plate has a through hole, and the bottom surface of the first groove of the side rod has a mounting hole corresponding to the through hole. The base plate and the side rod are connected by fasteners that pass through the through hole and enter the mounting hole. The base plate is in contact with the bottom surface of the prism.

2. The tooling for prism coating according to claim 1, characterized in that: A protrusion is provided on the inner side of the connecting rod near the side rod, and the protrusion abuts against the side of the positioning block.

3. The tooling for prism coating according to claim 1, characterized in that: The bottom of the positioning block is provided with a positioning hole, and the base plate is provided with a positioning pin corresponding to the positioning hole.

4. The tooling for prism coating according to claim 1, characterized in that: A third groove is formed between the protruding ridge and the bottom surface of the second groove. The groove of the positioning block forms a protruding strip on the top surface. The protruding strip is embedded in the third groove. The side surface of the second groove is in contact with the positioning block.

5. The tooling for prism coating according to claim 1, characterized in that: The base plate has a hollowed-out section in the middle, and a notch is provided on the edge of the base plate near the connecting rod.

6. The tooling for prism coating according to claim 1, characterized in that: The fastener is provided with a bushing, which is located between the base plate and the side rod.

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