Film coating fixture for optical element with hole

Abstract

The utility model provides a film coating fixture for a perforated optical element, comprising: a film coating chuck which is used for sleeving the perforated optical element and exposing a to-be-coated surface of the perforated optical element, the film coating chuck having a first surface facing the to-be-coated surface and a second surface opposite to the first surface; the connecting piece is arranged on the coating chuck; the shielding piece is connected to the connecting piece, and the shielding piece is used for being embedded in the through hole of the optical piece with the hole so as to block the through hole. The problem that the appearance of a product is poor due to the fact that a film layer is attached to the inner wall of a through hole when an existing optical piece with a hole is coated is solved.

Description

Technical Field

[0001] The present application relates to the technical field of optical component processing, and more specifically, to a coating fixture for optical components with holes. Background Art

[0002] Almost all optical products require coating to increase the transmittance of light, or to achieve other functions such as reflection, spectroscopy, and polarization. Some optical components have through holes (such as round holes, square holes, or other special-shaped holes) in the middle due to assembly or other functional requirements, forming optical components with holes. When the end face of the optical component with holes is coated, the inner wall of the through hole will be adhered by the film layer because there is no obstruction, showing a certain color. In most cases, the coating layer attached to the inner wall of the through hole does not affect the functionality of the product, because the inner wall of the through hole in the optical product is mostly frosted, not polished and is not a working surface, so the conventional coating method is still used in the existing coating process to coat the optical component with holes.

[0003] Existing conventional coating methods usually only use an annular coating fixture mounted on the side wall of the perforated optical component to expose the surface to be coated (the coated end face) of the perforated optical component. Because the through hole of the perforated optical component is not blocked, the coating will cause the inner wall of the through hole to adhere to the film layer and show color, resulting in an unsightly optical product and poor appearance quality.

[0004] Therefore, the existing technology still needs to be improved and developed. Utility Model Content

[0005] The purpose of the present application is to provide a coating fixture for optical components with holes, which solves the problem that a film layer will adhere to the inner wall of the through hole during coating of existing optical components with holes, resulting in poor product appearance.

[0006] To achieve the above objectives, the technical solution adopted in this application is:

[0007] The present application provides a coating fixture for an optical component with a hole, comprising:

[0008] A coating chuck is used to be mounted on a perforated optical component to expose the surface of the perforated optical component to be coated. The coating chuck has a first surface facing the surface to be coated and an opposite second surface.

[0009] A connecting piece, the connecting piece is arranged on the coating chuck;

[0010] The shielding member is connected to the connecting member and is used to be embedded in the through hole of the optical member with a hole to block the through hole.

[0011] In an optional embodiment, the connecting member is provided on the second surface of the coating chuck;

[0012] The shielding member comprises a shielding plate connected to the connecting member, and the outer contour of the shielding plate matches the inner wall contour of the through hole.

[0013] In an optional embodiment, a reserved gap is provided between the shielding plate and the inner wall of the through hole;

[0014] The outer edge of the shielding plate is wrapped with a sealing layer, and the reserved gap is filled through the sealing layer.

[0015] In an optional embodiment, the sealing layer includes at least one layer of aluminum foil.

[0016] In an optional embodiment, the end surface of the shielding plate facing the first surface is flush with the surface to be coated.

[0017] In an optional embodiment, the connecting member includes: a cover plate, the cover plate resting on the second surface of the coating chuck;

[0018] a support column connected to the cover plate and located in the through hole, and extending toward the first surface by a predetermined length;

[0019] The shielding member is connected to the support column.

[0020] In an optional embodiment, the cover plate, the support column and the shielding member are connected by fasteners.

[0021] In an optional embodiment, the fastener includes: a fastening screw and a fastening nut, and the fastening screw passes through the shielding member, the support column and the cover plate in sequence;

[0022] The fastening screw protrudes from the cover plate and is screwed onto the fastening nut.

[0023] In an optional embodiment, the coating chuck includes: a chuck body, wherein a receiving cavity is provided in the chuck body, and the receiving cavity is open toward a side of the second surface;

[0024] A limiting platform is provided on one side of the accommodating cavity facing the first surface, and the limiting platform surrounds to form a coating opening.

[0025] In an optional embodiment, a sunken groove is provided on the inner wall of the accommodating cavity on a side facing the second surface.

[0026] The coating fixture for optical components with holes provided in the present application has at least the following beneficial effects: a shielding member is disposed on a coating chuck via a connector, and the coating chuck is sleeved onto the optical component with holes, exposing the surface to be coated of the optical component with holes; the shielding member is embedded in the through-hole of the optical component with holes and is flush with the surface to be coated, so that the shielding member can block the opening of the through-hole facing the surface to be coated. During the coating process, the coating only covers the exposed surface to be coated (one end face). Due to the blocking of the through-hole opening, the coating material does not enter the inner wall of the through-hole, preventing the inner wall of the hole from being coated with a film layer. As a result, after coating, the optical component with holes is coated only on the surface to be coated, ensuring the quality of the product appearance and avoiding the occurrence of poor product appearance. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the embodiments or descriptions of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0028] Figure 1 It is a structural diagram of a product with a hole in the optical component;

[0029] Figure 2 A schematic structural diagram of a coating fixture for optical components with holes during assembly provided in an embodiment of the present application;

[0030] Figure 3 A schematic structural diagram of a coating fixture for an optical component with a hole provided in an embodiment of the present application during use;

[0031] Figure 4 A cross-sectional view of a coating fixture for an optical component with a hole provided in an embodiment of the present application during assembly;

[0032] Figure 5 A cross-sectional view of a coating fixture for optical components with holes provided in an embodiment of the present application during use.

[0033] Among them, the reference numerals in the figures are:

[0034] 10. Optical component with a hole; 11. Through hole; 12. Surface to be coated; 100. Coating chuck; 101. First surface; 102. Second surface; 110. Chuck body; 120. Accommodating cavity; 121. Coating opening; 130. Limiting platform; 140. Sunken groove; 200. Connector; 210. Cover plate; 220. Support column; 230. Fastener; 231. Fastening screw; 232. Fastening nut; 300. Shielding member; 310. Shielding plate; 320. Sealing layer. DETAILED DESCRIPTION

[0035] In order to make the technical problems, technical solutions and beneficial effects to be solved by this application more clearly understood, the present application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this application and are not intended to limit this application.

[0036] It should be noted that when a component is referred to as being "fixed on" or "disposed on" another component, it may be located directly or indirectly on the other component. When a component is referred to as being "connected to" another component, it may be directly or indirectly connected to the other component. The directions or positions indicated by the terms "upper", "lower", "left", "right", "front", "back", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc. are based on the directions or positions shown in the accompanying drawings and are only for the convenience of description and cannot be understood as limitations on this technical solution. The terms "first" and "second" are only used for the purpose of convenience of description and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features. "Multiple" means two or more, unless otherwise clearly and specifically defined.

[0037] See also Figure 1 The optical component 10 with a hole is an optical component with a through hole 11. The through hole 11 can be a round hole, a square hole or other special-shaped holes, for example Figure 1 The optical component 10 with a hole has a special-shaped through hole 11 in its center. When the conventional fixture is used for plating, a film layer will be attached to the inner wall of the through hole 11, showing color and affecting the appearance of the product. Therefore, the present embodiment is used to coat the optical component 10 with a hole, specifically as follows:

[0038] See also Figure 2 、 Figure 3This embodiment provides a coating fixture for an optical component with a hole, which mainly includes: a coating chuck 100, a connecting member 200, and a shielding member 300. The coating chuck 100 is annular and is used to be mounted on the optical component with a hole 10, exposing the surface 12 to be coated of the optical component with a hole 10. The coating chuck 100 has a first surface 101 facing the surface 12 to be coated and an opposite second surface 102. The first surface 101 is provided with a coating opening 121, and the second surface 102 can be an open side, so that the optical component with a hole 10 can enter the coating chuck 100 from the open side of the second surface 102. The surface 12 to be coated of the optical component with a hole 10 is exposed from the coating opening 121 on the side of the first surface 101, facilitating coating. The connector 200 is detachably mounted on the coating chuck 100. The shielding member 300 is connected to the connector 200. The shielding member 300 is configured to be embedded within the through-hole 11 of the apertured optical component 10 to block the through-hole 11. After the apertured optical component 10 is embedded within the coating chuck 100, the shielding member 300 is inserted into the through-hole 11 of the apertured optical component 10 from the second surface 102 of the coating chuck 100. The shielding member 300 is positioned on the coating chuck 100 on the second surface 102, where it is positioned, and is secured thereto, so that the outer contour of the shielding member 300 matches the inner contour of the through-hole 11, thereby blocking the through-hole 11.

[0039] See also Figure 2 、 Figure 3 、 Figure 5 In this embodiment, a coating fixture for a perforated optical component is provided. A shielding member 300 is positioned on a coating chuck 100 via a connector 200. The coating chuck 100 is then sleeved onto the perforated optical component 10, exposing the surface 12 of the perforated optical component 10 to be coated. The shielding member 300 is embedded within the through-hole 11 of the perforated optical component 10 and flush with the surface 12 to be coated. This allows the shielding member 300 to block the opening of the through-hole 11 facing the surface 12 to be coated. During the coating process, the coating only covers the exposed surface 12 to be coated (one end face). This blocking of the through-hole 11 prevents the coating material from entering the inner wall of the through-hole 11, preventing the inner wall of the hole from being coated. Consequently, after coating, the perforated optical component 10 is coated only on the surface 12 to be coated, ensuring the product's appearance quality and avoiding any defects.

[0040] See also Figure 2 、 Figure 3 、 Figure 4Furthermore, the connector 200 of this embodiment is disposed on the second surface 102 of the coating chuck 100. When the coating chuck 100 is placed on the sidewall of the optical component 10 with a hole, the surface 12 of the optical component 10 to be coated is exposed through the coating opening 121. The connector 200 is detachably disposed on the second surface 102 of the coating chuck 100, facilitating the positioning of the shielding member 300 after it is inserted into the through-hole 11. The shielding member 300 of this embodiment specifically includes a shielding plate 310, which is connected to the connector 200. The outer contour of the shielding plate 310 matches the inner contour of the through-hole 11, ensuring that the outer contour of the shielding plate 310 is consistent with the shape of the through-hole 11. The shielding plate 310 covers the through-hole 11 within the through-hole 11, thereby achieving a sealing function. At the same time, the thinness of the shielding plate 310 reduces the overall weight of the coating fixture and optimizes the structure of the coating fixture.

[0041] See also Figure 2 、 Figure 3 、 Figure 5 Furthermore, the shielding member 300 of this embodiment also includes a sealing layer 320. A reserved gap is provided between the shielding plate 310 and the inner wall of the through-hole 11. The sealing layer 320 is wrapped around the outer edge of the shielding plate 310, filling the reserved gap. Due to the high temperature during coating, to prevent the shielding plate 310 from expanding and damaging the optical component 10 with a hole, the outer edge of the shielding plate 310 is set to be slightly smaller than the inner wall of the through-hole 11. This creates a reserved gap between the shielding plate 310 and the inner wall of the through-hole 11, allowing room for expansion when the shielding plate 310 is heated. In this embodiment, the outer edge of the shielding plate 310 is 0.3-0.8 mm smaller than the size of the through-hole 11 on one side. For example, the reserved gap can be 0.5 mm. The reserved gap is then sealed by a sealing layer 320, which is made of a high-temperature-resistant flexible material. When the shielding plate 310 expands in a high-temperature environment, the flexible sealing layer 320 is compressed and deformed while still sealing the reserved gap, thereby ensuring the stability of the shielding member 300 in sealing the through hole 11 in a high-temperature environment.

[0042] The shielding plate 310 can be processed by wire cutting technology, and any shape can be processed at a very low cost. Therefore, the shielding plate 310 is well matched with the inner contour of the through hole 11, and the shielding member 300 can better ensure the sealing stability of the through hole 11 in a high temperature environment.

[0043] See also Figure 2 、 Figure 3 、 Figure 5 Furthermore, the sealing layer 320 of this embodiment includes at least one layer of aluminum foil. Aluminum foil is heat-resistant and has a certain degree of deformability after lamination. Wrapping several layers of aluminum foil around the outer edge of the shielding plate 310 can effectively seal the reserved gap.

[0044] See also Figure 3 Furthermore, in this embodiment, the end surface of the shielding plate 310 facing the first surface 101 is flush with the surface to be coated 12. During coating, the shielding plate 310 is flush with the surface to be coated of the perforated optical component 10, which facilitates sealing the through hole 11 of the perforated optical component 10. It is readily conceivable that the shielding plate 310 could also protrude from the through hole 11 to similarly achieve the desired sealing effect.

[0045] See also Figure 2 、 Figure 4 、 Figure 5 Furthermore, the connector 200 of this embodiment specifically includes: a cover plate 210 and a support column 220. The cover plate 210 rests on the second surface 102 of the coating chuck 100. The support column 220 is connected to the cover plate 210 and is located in the through hole 11, and extends a predetermined length toward the first surface 101. The shielding member 300 is connected to the support column 220. By the cover plate 210 resting on the second surface 102 of the coating chuck 100, the position of the shielding plate 310 in the through hole 11 is limited. In addition, by covering the open side of the second surface 102 of the coating chuck 100, the non-coated end surface on the other side of the optical component with a hole 10 and the opening of the through hole 11 are sealed to prevent coating, thereby ensuring the appearance quality of the product.

[0046] See also Figure 2 、 Figure 4 、 Figure 5 Furthermore, in this embodiment, the cover plate 210, support column 220, and shielding member 300 are connected by fasteners 230. Fasteners 230 can be structures such as screws. The cover plate 210, support column 220, and shielding member 300 are connected by fasteners 230 to achieve an assembled connection, allowing assembly to be performed according to different product specifications. For example, if the shape of the through hole 11 is different, the cover plate 210 can be replaced, and if the depth of the through hole 11 is different, the support column 220 can be replaced. The use of fasteners 230 makes the assembly process more convenient and highly practical.

[0047] See also Figure 2 、 Figure 4 、 Figure 5 Furthermore, the fastener 230 of this embodiment specifically includes a fastening screw 231 and a fastening nut 232. The fastening screw 231 sequentially passes through the shielding member 300, the support column 220, and the cover plate 210. The fastening screw 231 protrudes from the cover plate 210 and is threadedly engaged with the fastening nut 232. Because the fastening screw 231 protrudes after passing through the cover plate 210 and is tightened by the fastening nut 232 on the protruding side, not only does it achieve the assembly of the shielding plate 310, the support column 220, and the cover plate 210, but the protruding fastening nut 232 also serves as a handle for the cover plate 210, making it easier to remove and place.

[0048] See also Figure 2 、 Figure 4 、 Figure 5 Furthermore, the coating chuck 100 of this embodiment specifically includes a chuck body 110, wherein a receiving cavity 120 is disposed within the chuck body 110. The receiving cavity 120 is open on the side facing the second surface 102. A limiting platform 130 is disposed on the side facing the first surface 101 of the receiving cavity 120. The limiting platform 130 surrounds and forms a coating opening 121. The optical component 10 with a hole is introduced into the coating chuck 100 from the open side of the second surface 102. The limiting platform 130 blocks and limits the edge of the surface to be coated 12 of the optical component 10 with a hole, thereby stably retaining the optical component 10 within the receiving cavity 120 and exposing the surface to be coated 12 through the coating opening 121, facilitating coating.

[0049] See also Figure 2 、 Figure 4 、 Figure 5 Furthermore, in this embodiment, a recessed groove 140 is provided on the inner wall of the accommodating cavity 120 on the side facing the second surface 102. The recessed groove 140 is connected to the accommodating cavity 120 and is open toward the second surface 102. When removing or placing the optical component 10 with a hole, a worker can conveniently insert a finger into the recessed groove 140 and grasp the side wall of the optical component 10 with a hole, thereby facilitating the removal and placement of the optical component 10 with a hole. Multiple recessed grooves 140 can be provided and symmetrically arranged around the inner wall of the accommodating cavity 120. For example, two recessed grooves 140 can be symmetrically provided to facilitate reaching in and grasping the optical component 10 with a hole.

[0050] In summary, the coating fixture provided in this application for optical components with holes, by adding a connector to the coating fixture and connecting a shielding member that matches the shape of the through-hole in the optical component, can block the through-hole and prevent the inner wall of the through-hole from being coated with a film layer. Furthermore, this coating fixture has a simple structure, is easy to manufacture and assemble, and can be retrofitted to existing fixtures at a low cost. It also has good effectiveness, can solve the problem of film layers adhering to the side walls of the hole when coating products with holes, and is therefore practical.

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

Claims

1. A coating fixture for optical components with holes, characterized in that: include: A coating chuck, the coating chuck is used to be mounted on a perforated optical component to expose a surface to be coated on the perforated optical component, the coating chuck having a first surface facing the surface to be coated and an opposite second surface; A connecting piece, the connecting piece is arranged on the coating chuck; A shielding member is connected to the connecting member and is used to be embedded in the through hole of the optical member with a hole to block the through hole.

2. The coating fixture for optical components with holes according to claim 1, characterized in that: The connecting member is arranged on the second surface of the coating chuck; The shielding member includes a shielding plate connected to the connecting member, and the outer contour of the shielding plate matches the inner wall contour of the through hole.

3. The coating fixture for optical components with holes according to claim 2, characterized in that: A reserved gap is provided between the shielding plate and the inner wall of the through hole; The outer edge of the shielding plate is wrapped with a sealing layer, and the reserved gap is filled by the sealing layer.

4. The coating fixture for optical components with holes according to claim 3, characterized in that: The sealing layer includes at least one aluminum foil layer.

5. The coating fixture for optical components with holes according to claim 2, characterized in that: The end surface of the shielding plate facing the first surface is flush with the surface to be coated.

6. The coating fixture for optical components with holes according to any one of claims 1 to 5, characterized in that: The connecting member includes: a cover plate, the cover plate resting on the second surface of the coating chuck; a support column connected to the cover plate and located in the through hole, and extending toward the first surface by a predetermined length; The shielding member is connected to the supporting column.

7. The coating fixture for optical components with holes according to claim 6, characterized in that: The cover plate, the support column and the shielding member are connected by fasteners.

8. The coating fixture for optical components with holes according to claim 7, characterized in that: The fastener comprises: a fastening screw and a fastening nut, wherein the fastening screw passes through the shielding member, the supporting column and the cover plate in sequence; The fastening screw protrudes from the cover plate and is screwed into the fastening nut.

9. The coating fixture for optical components with holes according to any one of claims 1 to 5, characterized in that: The coating chuck comprises: a chuck body, wherein a receiving cavity is provided in the chuck body, and the receiving cavity is open toward one side of the second surface; A limiting platform is provided on one side of the accommodating cavity facing the first surface, and the limiting platform surrounds to form a coating opening.

10. The coating fixture for optical components with holes according to claim 9, characterized in that: A sunken groove is provided on the inner wall of the accommodating cavity on a side facing the second surface.

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