Local gold plating clamp for cylindrical electro-optical switch crystal

Abstract

The utility model provides a clamp for local gold plating of a cylindrical electro-optical switch crystal. The clamp comprises an installation clamp and a protection clamp. The installation clamp comprises a clamp body and an installation head arranged on the first side end face of the clamp body, the installation head is of a cylindrical protruding structure arranged opposite to the end face of the clamp body, and one side of the second side end face, opposite to the first side end face, of the clamp body can be installed on a workpiece disc. The protection clamp is in a circular ring shape and can be arranged on the outer wall of a to-be-gold-plated crystal in a sleeving mode, and the length of the protection clamp is equal to that of a non-gold-plated area of the to-be-gold-plated crystal. The non-film-coating area of the crystal is protected by the protection clamp, the size is accurate and neat, and the method is better than manual line drawing and is protected by an adhesive tape.

Description

Technical Field

[0001] The utility model relates to the technical field of optical processing, in particular to a local gold-plated fixture for a cylindrical electro-optical switch crystal. Background Art

[0002] Electro-optical switch crystal is one of the important parts of laser devices. The common processing method is to plate a layer of metal electrode array on its surface, such as gold. At present, magnetron sputtering is the most common method of coating metal film. Magnetron sputtering refers to applying a magnetic field parallel to the cathode surface to confine electrons near the cathode target surface to improve ionization efficiency.

[0003] According to the requirements of gold plating, you can choose to partially gold plate the crystal, so the non-gold-plated area needs to be protected. For a cylindrical crystal with a soft texture, if partial gold plating is required in the existing coating equipment, the non-gold-plated area needs to be protected with tape and placed under the cathode target for coating. Because of the special material, the use of metal clamps can easily cause damage to the crystal, so metal clamps cannot be used. Then the crystal needs to be fixed to the coating machine with high-temperature tape.

[0004] The crystal fixing method in the prior art may cause the vacuum gold plating to have color difference due to the outgassing of the tape in the vacuum chamber, and the error in the size of the gold-plated electrode may affect the electric field performance of the crystal. The existing crystal fixing method is not suitable for the local gold plating operation of the crystal. Utility Model Content

[0005] The utility model aims to solve one of the above-mentioned technical problems and provides a crystal gold-plating processing fixture for local crystal gold-plating processing.

[0006] To achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A cylindrical electro-optical switch crystal partial gold-plating fixture, comprising:

[0008] The mounting fixture comprises a fixture body, a mounting head arranged on a first side end face of the fixture body, the mounting head being a cylindrical protruding structure arranged relative to the end face of the fixture body, and a second side end face of the fixture body opposite to the first side end face can be mounted to the workpiece disk;

[0009] The protective clamp is in the shape of a ring and can be mounted on the outer wall of the crystal to be gold-plated. The length of the protective clamp is equal to the length of the non-gold-plated area of ​​the crystal to be gold-plated.

[0010] In some embodiments of the present invention, the size of the mounting head is not less than the diameter of the crystal to be gold-plated.

[0011] In some embodiments of the utility model, one side of the second side end surface of the clamp body has a mounting hole, and can be mounted to the workpiece disk through the mounting hole.

[0012] In some embodiments of the utility model, an axial gap along the axial direction of the clamp body and a circumferential gap along the circumferential direction of the clamp body are formed along the side wall of the clamp body where the mounting hole is located, and the axial gap and the circumferential gap are connected.

[0013] In some embodiments of the utility model, fixing piece mounting holes are arranged opposite to each other on the upper and lower sides of the axial gap opening, and the gold-plated fixture further includes a fixture mounting fixture, and the fixture mounting fixture is installed in the fixing piece mounting hole.

[0014] In some embodiments of the utility model, a plurality of fixing member installation holes are arranged along the circumferential direction of the protection clamp, and the gold-plating clamp further includes a protection clamp fixing member, and the protection clamp fixing member can pass through the fixing member installation hole to contact and fix with the crystal to be gold-plated.

[0015] In some embodiments of the utility model, the protective clamp includes a first wall thickness section, a second wall thickness section and a third wall thickness section along the axial direction of the protective clamp; the thickness of the second wall thickness section is greater than the thickness of the first wall thickness section and the thickness of the third wall thickness section, and the fixing member installation hole is located in the second wall thickness section.

[0016] In some embodiments of the present invention, the installation fixture and the protection fixture are both made of polytetrafluoroethylene material.

[0017] Compared with the prior art, the technical advantages of the utility model are:

[0018] 1. The non-coated area of ​​the crystal is protected by a protective fixture, with precise and neat dimensions, which is better than manual drawing and protection with tape.

[0019] 2. Compared with traditional metal clamps, this clamp is made of polytetrafluoroethylene, which will not cause crystal cracking due to thermal expansion and contraction of the clamp.

[0020] 3. Using this fixture, the side of the crystal is well protected and not easily contaminated. And when inverted, it is less likely to cause the risk of the crystal falling than sticking the back of the coated surface with tape.

[0021] 4. The fixture of the utility model is suitable for widely promoting the use of cylindrical crystals of different diameters. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0023] Figure 1 This is a schematic diagram of the structure of the installation fixture from the first perspective;

[0024] Figure 2 It is a schematic diagram of the structure of the installation fixture from the second perspective;

[0025] Figure 3 To protect the schematic diagram of the fixture structure;

[0026] Figure 4 Schematic diagram of the crystal structure to be gold plated;

[0027] Figure 5 A schematic diagram of the installation structure for protecting the fixture and the crystal to be gold plated;

[0028] Figure 6 Schematic diagram of the installation principle of the fixture and workpiece plate.

[0029] In the above figures:

[0030] 1-mounting fixture, 101-fixture body, 102-first side end surface, 103-mounting head, 104-second side end surface, 105-mounting hole, 106-axial gap, 107-circumferential gap, 108-fixing piece mounting hole, 109-mounting fixture fixing piece;

[0031] 2-Crystal to be gold plated;

[0032] 3-workpiece plate, 301-convex column structure;

[0033] 4-protection clamp, 401-first wall thickness section, 402-second wall thickness section, 403-third wall thickness section, 404-fixing part mounting hole, 405-protection clamp fixing part. DETAILED DESCRIPTION

[0034] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0035] It should be noted that when an element is referred to as being "disposed on", "connected to", or "fixed to" another element, it may be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it may be directly connected to the other element or indirectly connected to the other element. In addition, the terms "first" and "second" are used for descriptive purposes only and are not to be understood as indicating or implying relative importance.

[0036] The utility model provides a partial gold-plating fixture for a cylindrical electro-optical switch crystal, which is used for gold-plating treatment of the cylindrical crystal.

[0037] The fixture provided by the utility model comprises two parts, one part is a mounting fixture 1, and the other part is a protection fixture 3. In order to reduce the damage to the gold-plated crystal 2, the mounting fixture 1 and the protection fixture 3 are both made of polytetrafluoroethylene material.

[0038] Structural reference for mounting fixtures Figure 1 and Figure 2 , including a fixture body 101, and a mounting head 103 disposed on a first side end surface 102 of the fixture body. The mounting head 103 and the fixture body 101 are an integrated structure, and the mounting head 103 is a cylindrical protruding structure disposed relative to the end surface of the fixture body 101, and is used to cooperate with the crystal 2 to be plated with gold for mounting.

[0039] Since the crystal 2 to be plated with gold is a cylinder, the mounting head 3 is also cylindrical. In order to ensure the stability of the matching installation between the fixture body 101 and the crystal 2 to be plated with gold, the radial dimension of the mounting head 103 is not less than the radial dimension of the crystal 2 to be plated with gold. In actual application, the crystal 2 to be plated with gold can be bonded to the mounting head 103 by adhesive.

[0040] The second side end surface 104 of the fixture body opposite to the first side end surface 102 can be mounted on the workpiece disk 3. During operation, the workpiece disk 3 rotates to drive the mounting fixture 1 to rotate.

[0041] Structural reference of protection fixture 3 Figure 3 The protective clamp 4 can be mounted on the outer wall of the crystal 2 to be gold-plated, and its function is to protect the crystal part that does not need gold plating. Therefore, the length of the protective clamp 4 is equal to the length of the non-gold-plated area of ​​the crystal to be gold-plated. The protective clamp 3 is in a circular ring shape, and its diameter is not less than the radial dimension of the crystal 2 to be gold-plated. During use, the protective clamp 4 is mounted on the area of ​​the crystal 2 that does not need gold plating, and then the crystal 2 to be gold-plated is placed in the working environment. After the gold plating is completed, the protective clamp 3 is removed, and the gold plating operation of the crystal 2 to be gold-plated can be completed in a protected state.

[0042] In order to solve the installation problem between the mounting fixture 1 and the workpiece disk 3, in some embodiments of the utility model, one side of the second side end surface 104 of the fixture body has a mounting hole 105, which can be installed to the workpiece disk 3 through the mounting hole 105. Usually, the mounting end of the workpiece disk 3 has a boss structure 301, and the size of the mounting hole 105 is not less than the size of the boss structure 301, ensuring that the mounting fixture 1 can be mounted on the workpiece disk 3.

[0043] In order to ensure the fixation between the mounting fixture 1 and the workpiece disk 3, in some embodiments of the utility model, an axial gap 106 along the axial direction of the fixture body 101 and a circumferential gap 107 along the circumferential direction of the fixture body 101 are formed along the side wall of the fixture body 101 where the mounting hole 105 is located, and the axial gap 106 and the circumferential gap 107 are connected. Among them, the size of the circumferential gap 107 is smaller than the size of the entire circumference of the fixture body 101, and the size of the axial gap 106 is smaller than the axial length of the fixture body 101. The axial gap 106 and the circumferential gap 107 cooperate to form a structure that is approximately open, so that the mounting hole 105 has a certain caliber adjustment margin, and can be used to install workpiece disks 3 of different sizes.

[0044] When the mounting fixture 1 is mounted on the workpiece disk, the size of the mounting hole 105 is adjusted by the circumferential gap 107 and the axial gap 106 , and the mounting hole 105 is sleeved on the boss structure 301 of the workpiece disk.

[0045] In order to improve the fixation between the mounting fixture 1 and the workpiece disk 3, in some embodiments of the present invention, the upper and lower sides of the opening of the axial gap 106 are relatively provided with fixing member mounting holes 108, and the gold-plated fixture further includes a mounting fixture fixing member 109, and the mounting fixture fixing member 109 is installed in the fixing member mounting hole 108. After the mounting hole 105 is sleeved on the boss structure 301 of the workpiece disk, the fixing member 109 is inserted and tightened to fix the installation between the mounting hole 108 and the boss structure 301.

[0046] At the same time, in order to improve the fixation between the protective clamp 4 and the crystal 2 to be gold-plated, in some embodiments of the utility model, a plurality of fixing part mounting holes 405 are arranged along the circumferential direction of the protective clamp 4, and the gold-plating clamp further includes a protective clamp fixing part 405, and the protective clamp 4 fixing part 405 can pass through the fixing part mounting hole 404 and contact and fix with the crystal 2 to be gold-plated.

[0047] In some embodiments of the utility model, the protective clamp 4 includes a first wall thickness section 401, a second wall thickness section 402 and a third wall thickness section 403 along the axial direction of the protective clamp 4; the thickness of the second wall thickness section 402 is greater than the thickness of the first wall thickness section 401 and the thickness of the third wall thickness section 403, and the fixing member installation hole 404 is located in the second wall thickness section. Since the second wall thickness section 402 is thicker and stronger, arranging the fixing member installation hole 404 in the second wall thickness section 402 can ensure the stability of the structure of the protective clamp 4 and extend its service life.

[0048] The method of using the clamp provided by the utility model is as follows.

[0049] refer to Figure 6 , select the crystal 2 to be plated with gold, select the protective fixture 4 according to the size of the crystal 2 to be plated with gold, and fix the protective fixture 4 on the crystal 2 to be plated with gold using the protective fixture fixing part 405. Install the mounting fixture 1 on the workpiece plate 3. Adhere the crystal 2 to be plated with gold after the protective fixture 4 is installed to the mounting fixture 1. Start the workpiece plate 3 to complete the gold plating operation.

[0050] The above usage sequence does not limit the specific use of the crystal fixture and can be adjusted as needed during application.

[0051] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A cylindrical electro-optical switch crystal partial gold-plating fixture, characterized in that: include: The mounting fixture comprises a fixture body, a mounting head arranged on a first side end face of the fixture body, the mounting head being a cylindrical protruding structure arranged relative to the end face of the fixture body, and a second side end face of the fixture body opposite to the first side end face can be mounted to the workpiece disk; The protective clamp is in the shape of a ring and can be mounted on the outer wall of the crystal to be gold-plated. The length of the protective clamp is equal to the length of the non-gold-plated area of ​​the crystal to be gold-plated.

2. The cylindrical electro-optical switch crystal partial gold-plating fixture as claimed in claim 1, characterized in that: The size of the mounting head is not less than the diameter of the crystal to be gold plated.

3. The cylindrical electro-optical switch crystal partial gold-plating fixture as claimed in claim 1, characterized in that: One side of the second side end surface of the clamp body is provided with a mounting hole, and can be mounted to the workpiece disk through the mounting hole.

4. The cylindrical electro-optical switch crystal partial gold-plating fixture as claimed in claim 3, characterized in that: An axial gap along the axial direction of the clamp body and a circumferential gap along the circumferential direction of the clamp body are formed along the side wall of the clamp body where the mounting hole is located, and the axial gap and the circumferential gap are communicated.

5. The cylindrical electro-optical switch crystal partial gold-plating fixture as claimed in claim 4, characterized in that: The upper side and the lower side of the axial gap opening are oppositely provided with fixing piece mounting holes, and the gold-plated fixture further comprises a fixture mounting fixture, and the fixture mounting fixture is mounted in the fixing piece mounting hole.

6. The cylindrical electro-optical switch crystal partial gold-plating fixture as claimed in claim 1, characterized in that: A plurality of fixing member installation holes are arranged along the circumferential direction of the protection clamp, and the gold-plating clamp further comprises a protection clamp fixing member, and the protection clamp fixing member can pass through the fixing member installation holes and contact and fix with the crystal to be gold-plated.

7. The cylindrical electro-optical switch crystal partial gold-plating fixture as claimed in claim 6, characterized in that: The protection clamp includes a first wall thickness section, a second wall thickness section and a third wall thickness section along the axial direction of the protection clamp; the thickness of the second wall thickness section is greater than the thickness of the first wall thickness section and the thickness of the third wall thickness section, and the fixing member installation hole is located in the second wall thickness section.

8. The cylindrical electro-optical switch crystal partial gold-plating fixture as claimed in claim 1, characterized in that: The installation fixture and the protection fixture are both made of polytetrafluoroethylene material.

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