Lens coating self-locking tool

Abstract

The utility model relates to the technical field of lens coating, in particular to a lens coating self-locking tool. Comprising an upper fixing plate, a lower fixing plate and a fixing ring, the upper fixing plate comprises an upper plate body; the upper fixing hole penetrates through the upper plate body; the upper ring groove is formed in the lower end face of the upper plate body and located in the periphery of the upper fixing hole. The lower fixing plate comprises a lower plate body; the lower fixing hole penetrates through the lower plate body; the lower ring groove is formed in the upper end face of the lower plate body and located in the periphery of the lower fixing hole. The fixing ring is made of rubber and comprises a ring body embedded between the upper ring groove and the lower ring groove. And an arched lug boss is arranged at the upper end of the ring body. And a cavity is formed in the lug boss. The fixing firmness of the lens can be effectively improved, and meanwhile the positioning precision is remarkably improved.

Description

Technical Field

[0001] The utility model relates to the technical field of lens coating, in particular to a self-locking tool for lens coating. Background Art

[0002] With the rapid advancement of technology, the application of optical components in industrial manufacturing, medical equipment, and consumer electronics continues to deepen, placing higher demands on optical coating technology. The mainstream optical coating tooling currently on the market generally adopts a baseplate-cover plate combination structure. Its working principle is as follows: Circumferentially distributed fastening screws achieve a rigid connection between the baseplate and the cover plate. During operation, the lens to be coated is placed in the baseplate positioning groove, covered with the cover plate, and the surrounding screws are tightened to complete the fixation. After coating is completed, the reverse operation is performed to remove the lens.

[0003] However, this type of traditional tooling has significant technical defects: first, the rigid connection structure lacks a stress buffering mechanism. When the locking torque applied by the operator is too large, the rigid contact between the cover plate, the base plate and the lens can easily lead to stress concentration on the lens surface, which can cause microcracks affecting optical performance at the very least, or even directly cause the lens to break. Second, if the locking force is reduced to avoid damage, it is difficult to ensure the fixing strength of the lens, and the workpiece may be displaced, resulting in uneven coating thickness. Utility Model Content

[0004] In order to solve the technical problems existing in the background technology, the utility model provides a self-locking tool for lens coating, which can effectively improve the fixing reliability of the lens and significantly improve the positioning accuracy.

[0005] The technical solution adopted by the utility model to solve its technical problems is:

[0006] A self-locking tool for lens coating, comprising:

[0007] Upper fixing plate, lower fixing plate and fixing ring;

[0008] The upper fixing plate includes:

[0009] upper plate body;

[0010] An upper fixing hole passes through the upper plate body;

[0011] An upper annular groove is formed on the lower end surface of the upper plate body and is located at the outer periphery of the upper fixing hole;

[0012] The lower fixing plate includes:

[0013] lower plate body;

[0014] A lower fixing hole passes through the lower plate;

[0015] A lower annular groove is formed on the upper end surface of the lower plate body and is located at the outer periphery of the lower fixing hole;

[0016] The fixing ring is made of rubber and includes:

[0017] The ring body is embedded between the upper ring groove and the lower ring groove.

[0018] Furthermore, an arched protrusion is provided at the upper end of the ring body.

[0019] Furthermore, a cavity is defined inside the raised portion.

[0020] Furthermore, a boss is provided on the upper end surface of the lower plate.

[0021] Furthermore, the upper plate body is provided with a positioning hole, and the lower plate body is provided with a positioning pin that cooperates with the positioning hole.

[0022] Furthermore, the upper plate body is provided with an upper connecting hole, and the lower plate body is provided with a lower connecting hole that matches the upper connecting hole.

[0023] Beneficial effects of the utility model:

[0024] (1) Effectively improve the fixation reliability of the lens and significantly improve the positioning accuracy.

[0025] (2) An elastic fixing ring is used to clamp the lens between the upper and lower fixing plates. The elastic fixing ring acts as a buffer medium to effectively isolate the direct contact between the lens and the metal fixing plate, avoid local stress concentration caused by hard contact, and protect the lens.

[0026] (3) When the upper and lower fixing plates are press-fitted, the fixing ring produces a controllable inward elastic deformation under the action of axial pressure, forming a continuous and stable centripetal clamping force. This deformation mechanism ensures the flexible holding of the lens and the positioning accuracy of the lens through mechanical transformation. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0028] Figure 1 It is a structural diagram of the utility model;

[0029] Figure 2 2 is a schematic structural diagram of the upper fixed plate;

[0030] Figure 3 1 is a structural diagram of the lower fixed plate;

[0031] Figure 4 It is a structural diagram of the fixed ring;

[0032] Figure 5 It is a partial cross-sectional view of the present utility model.

[0033] In the picture:

[0034] 1. Upper fixing plate, 2. Lower fixing plate, 3. Fixing ring;

[0035] 101. Upper plate, 102. Upper fixing hole, 103. Upper ring groove, 104. Positioning hole, 105. Upper connecting hole;

[0036] 201. Lower plate, 202. Lower fixing hole, 203. Lower annular groove, 204. Boss, 205. Positioning pin, 206. Lower connecting hole;

[0037] 301. Ring body, 302. Raised portion, 303. Cavity. DETAILED DESCRIPTION

[0038] The present invention will be further described in detail below with reference to the accompanying drawings.

[0039] like Figure 1 The figure shows a self-locking fixture for lens coating. Its specific structure includes an upper fixing plate 1, a lower fixing plate 2, and a fixing ring 3. The upper and lower fixing plates 1 and 2 are made of metal, and the fixing ring 3 is made of rubber. The gap between the upper and lower fixing plates 1 and 2 clamps the fixing ring 3 to achieve the desired fixation. This fixture can effectively improve the fixing reliability of the lens and significantly enhance the positioning accuracy of the lens. It is suitable for precision manufacturing scenarios such as optical coating, semiconductor coating, and vacuum coating.

[0040] like Figure 2 As shown, the specific structure of the upper fixing plate 1 includes an upper plate body 101. Several upper fixing holes 102 pass through the upper plate body 101. The upper fixing holes 102 are used to accurately place the product to be coated to ensure position consistency. An upper annular groove 103 is opened on the lower end face of the upper plate body 101. The cross-section of the upper annular groove 103 is rectangular, and the upper annular groove 103 is located on the outer periphery of the upper fixing hole 102. The upper fixing plate 1 adopts this single-sided countersunk hole structure to prevent the displacement or deformation of parts during the coating process. The upper fixing plate 1 and the lower fixing plate 2 form a closed cavity, which can prevent the coating material from splashing or diffracting.

[0041] like Figure 3 As shown, the specific structure of the lower fixing plate 2 includes a lower plate body 201. Several lower fixing holes 202 pass through the lower plate body 201. The lower fixing holes 202 are used to accurately place the product to be coated to ensure position consistency. The lower annular groove 203 is opened on the upper end face of the lower plate body 201. The cross-section of the lower annular groove 203 is rectangular, and the lower annular groove 203 is located on the outer periphery of the lower fixing hole 202. The lower fixing plate 2 adopts this single-sided countersunk hole structure to prevent the displacement or deformation of parts during the coating process. The lower fixing plate 2 and the upper fixing plate 1 form a closed cavity to prevent the coating material from splashing or diffraction. A boss 204 is provided on the upper end face of the lower plate body 201. The boss 204 can form a gap between the upper fixing plate 1 and the lower fixing plate 2, so that the fixing ring 3 can be clamped.

[0042] The upper plate 101 is provided with an upper connection hole 105, and the lower plate 201 is provided with a lower connection hole 206 that mates with the upper connection hole 105. Bolts are provided between the upper connection hole 105 and the lower connection hole 206. The upper and lower fixing plates 1 and 2 are connected and fixed via the upper and lower connection holes 105 and 206. The upper plate 101 is provided with a positioning hole 104, and the lower plate 201 is provided with a positioning pin 205 that mates with the positioning hole 104. The positioning pin 205 can be inserted into the positioning hole 104, thereby further precisely fixing the relative position of the upper and lower fixing plates 1 and 2.

[0043] like Figure 4 As shown, the fixing ring 3 is made of elastic rubber. Its specific structure includes a ring body 301, the cross-section of which is rectangular, and the shape of the ring body 301 matches the shape of the lower ring groove 203. The ring body 301 is embedded between the upper ring groove 103 and the lower ring groove 203. An arched protrusion 302 is provided at the upper end of the ring body 301. A cavity 303 is defined inside the protrusion 302. When the protrusion 302 is subjected to axial pressure, it can produce radial elastic deformation, and the cavity 303 can further increase the radial deformation of the protrusion 302. The outward radial elastic deformation of the protrusion 302 is limited by the upper ring groove 103, so that the radial elastic deformation of the protrusion 302 is mainly toward the inside, so that the fixing ring 3 forms a continuous and stable centripetal clamping force on the lens.

[0044] like Figure 5 As shown, an elastic retaining ring 3 is used to clamp the lens between the upper and lower retaining plates 1 and 2. Acting as a buffer, the elastic retaining ring 3 effectively isolates the lens from direct contact with the metal retaining plates, preventing localized stress concentration caused by hard contact and protecting the lens. Furthermore, when the upper and lower retaining plates 1 and 2 are press-fitted together, the retaining ring 3 undergoes a controllable inward elastic deformation under axial pressure, exerting a continuous and stable centripetal clamping force on the lens. This deformation mechanism, through mechanical transformation, ensures both flexible retention of the lens and precise positioning of the lens.

[0045] Specific usage:

[0046] a. Place the fixing ring 3 on the outer periphery of the lens.

[0047] b. Place the lens with the fixing ring 3 in the lower fixing hole 202 of the lower fixing plate 2. At this time, the ring body 301 is embedded in the lower ring groove 203.

[0048] c. Install the cover on the fixing plate 1 and press and fix it to the lower fixing plate 2 with bolts. At this time, the upper annular groove 103 presses on the raised portion 302 of the fixing ring 3. When the upper fixing plate 1 and the lower fixing plate 2 are press-fitted, the raised portion 302 of the fixing ring 3 is subjected to the axial pressure of the upper annular groove 103 to produce a controllable inward elastic deformation, forming a continuous and stable centripetal clamping force on the lens. This deformation mechanism, through mechanical transformation, not only ensures the flexible holding of the lens, but also ensures the positioning accuracy of the lens. The greater the clamping force of the upper fixing plate 1 and the lower fixing plate 2, the greater the centripetal clamping force of the fixing ring 3 on the lens. It not only ensures the flexible holding of the lens, but also ensures the positioning accuracy of the lens.

[0049] d. Place the entire device into the coating environment and perform the coating operation.

[0050] Based on the above-mentioned ideal embodiment of the present invention, and in accordance with the above description, relevant personnel can make various changes and modifications without departing from the technical scope of the present invention. The technical scope of the present invention is not limited to the content of the specification, but must be determined according to the scope of the claims.

Claims

1. A self-locking tool for lens coating, characterized in that: include: An upper fixing plate (1), a lower fixing plate (2) and a fixing ring (3); The upper fixing plate (1) comprises: Upper plate body (101); An upper fixing hole (102) passing through the upper plate body (101); An upper annular groove (103) is formed on the lower end surface of the upper plate body (101), and the upper annular groove (103) is located on the outer periphery of the upper fixing hole (102); The lower fixing plate (2) comprises: Lower plate body (201); A lower fixing hole (202) passing through the lower plate body (201); A lower annular groove (203) is formed on the upper end surface of the lower plate body (201), and the lower annular groove (203) is located on the outer periphery of the lower fixing hole (202); The fixing ring (3) is made of rubber and comprises: The ring body (301) is embedded between the upper ring groove (103) and the lower ring groove (203).

2. The self-locking tool for lens coating according to claim 1, characterized in that: An arched raised portion (302) is provided at the upper end of the ring body (301).

3. The self-locking tool for lens coating according to claim 2, characterized in that: A cavity (303) is provided inside the raised portion (302).

4. The self-locking tool for lens coating according to claim 1, characterized in that: The upper end surface of the lower plate body (201) is provided with a boss (204).

5. The self-locking tool for lens coating according to claim 1, characterized in that: The upper plate body (101) is provided with a positioning hole (104), and the lower plate body (201) is provided with a positioning pin (205) that cooperates with the positioning hole (104).

6. The self-locking tool for lens coating according to claim 1, characterized in that: The upper plate body (101) is provided with an upper connection hole (105), and the lower plate body (201) is provided with a lower connection hole (206) that matches the upper connection hole (105).

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