Fine trimming tool for soft material optical part

Abstract

The utility model relates to the technical field of part processing, and provides a fine trimming tool for a soft material optical part, the fine trimming tool comprises a bearing disc and a soft fine trimming plate, the soft fine trimming plate is provided with a slot, the bearing disc is provided with a positioning part, the positioning part is used for positioning the soft material optical part, and the soft material optical part is arranged in the slot. When the bearing disc and the soft fine trimming plate are oppositely arranged on the fine trimming equipment, the soft fine trimming plate is located below the bearing disc, and the soft material optical part is arranged on the positioning part, the to-be-fine-trimmed face of the soft material optical part can abut against the soft fine trimming plate, the soft material optical part and the soft fine trimming plate move relatively under driving of the bearing disc, and the soft material optical part is subjected to fine trimming. And the soft finishing plate is used for finishing the to-be-finished surface of the soft material optical part. The defects existing in the soft material optical part machining process in the prior art are overcome, the yield and machining efficiency of the soft material optical part are improved, and the production cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of optical parts processing, and more specifically to a finishing tool for soft material optical parts. Background Art

[0002] Optical cold processing technology usually uses polishing molds such as asphalt and polyurethane to complete the polishing of optical parts, and the polishing liquid usually contains polishing particles. Traditional processing technology is not friendly to the processing of soft material optical parts such as calcium fluoride materials. During the polishing process, the polishing particles will cause scratches on the surface of the calcium fluoride component, affecting the optical indicators of the product. In addition, when polishing soft material optical parts with traditional polishing molds such as asphalt, the polishing particles are prone to agglomeration, resulting in a large compression stiffness at the agglomeration position, and the pressure difference between the high and low points on the lens surface is large. It is easy to collapse the edge of the polishing, and it is not easy to control the medium and high frequency errors, which is not conducive to the control of smooth small size errors. How to solve the drawbacks in the processing of soft material optical parts in the prior art, improve the yield and processing efficiency of soft material optical parts, and reduce production costs has become an urgent problem to be solved. Therefore, the prior art still needs to be improved and developed. Utility Model Content

[0003] The utility model aims to provide a finishing tool for soft material optical parts, so as to solve the technical problems existing in the processing of soft material optical parts in the prior art, improve the yield and processing efficiency of soft material optical parts, and reduce production costs.

[0004] To achieve the above-mentioned purpose, the technical solution adopted by the utility model is: to provide a finishing tool for soft material optical parts, the finishing tool comprising a carrying plate and a soft finishing plate, the soft finishing plate is provided with a slot, the carrying plate is provided with a positioning portion, the positioning portion is used to position the soft material optical part, when the carrying plate and the soft finishing plate are relatively arranged on the finishing equipment and the soft finishing plate is located below the carrying plate, when the soft material optical part is placed on the positioning portion, the surface to be finished of the soft material optical part can be abutted against the soft finishing plate, and driven by the carrying plate, the soft material optical part and the soft finishing plate move relatively, so that the soft finishing plate can finish the surface to be finished of the soft material optical part.

[0005] Optionally, the positioning portion is a hollow accommodating cavity provided on the carrying plate, and the accommodating cavity is used to accommodate the soft material optical part. When the carrying plate is placed on the soft finishing plate and the soft material optical part is placed in the accommodating cavity, the surface to be refined of the soft material optical part is in direct contact with the soft finishing plate.

[0006] Optionally, a pressing block is further included, and the top of the accommodating cavity is provided with an internal thread ring that matches the thread of the pressing block.

[0007] Optionally, a connecting head is also included, and the connecting head is used to be connected to the swing shaft of the finishing device.

[0008] Optionally, the connecting head is in the shape of a countersunk hole, the bottom of the countersunk hole is in the shape of a concave sphere, and the pressure head of the swing shaft is formed as a top point matching the countersunk hole.

[0009] Optionally, the appearance of the contact surface between the carrier plate and the soft finishing plate is close to the finished appearance of the soft material optical part.

[0010] Optionally, a protective plate is further included, wherein the protective plate abuts against a side wall of the accommodating cavity.

[0011] Optionally, the protection plate is arranged to face the moving direction of the carrying plate.

[0012] Optionally, when the soft material optical component is placed in the accommodating cavity, a gap is left between the soft material optical component and the protective plate.

[0013] Optionally, the soft finishing plate is a damping cloth polishing pad.

[0014] The beneficial effect of the finishing tool for soft material optical parts provided by the utility model is at least that: the positioning part of the finishing tool is adopted to change the disc processing mode of the soft material optical parts, and the groove is set on the soft finishing plate, which solves the problem of agglomeration of polishing particles, can effectively reduce the problem of scratches on the surface of soft material optical parts by polishing particles during the processing of soft material optical parts such as calcium fluoride material optical parts, and solves the problem that the calcium fluoride element is prone to surface collapse and causes surface shape deviation, which is conducive to the control of smooth small size errors and improves product yield and production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] 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 work.

[0016] Figure 1 A three-dimensional structural diagram of a finishing tool for soft material optical parts according to an embodiment of the present utility model;

[0017] Figure 2A three-dimensional structural diagram of another embodiment of a finishing tool for soft material optical parts provided by the utility model;

[0018] Figure 3 for Figure 2 Another three-dimensional structural diagram of the finishing tool shown.

[0019] Among them, the reference numerals in the figure are:

[0020] 1. Carrying plate; 2. Soft finishing plate; 3. Connector; 4. Soft material optical parts; 5. Protective plate; 10. Positioning part; 20. Slotting. DETAILED DESCRIPTION

[0021] 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.

[0022] It should be noted that when a component is referred to as being "fixed on" or "disposed on" another component, it may be directly or indirectly located 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 the present technical solution. The terms "first" and "second" are only used for the 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.

[0023] The following describes, in conjunction with the accompanying drawings, the finishing tooling for soft material optical parts provided by the embodiment of the utility model, which solves the problem of marks and scratches that are easy to appear during the processing of soft material optical parts, and adopts this disc polishing method to solve the problem of soft material optical parts having surface collapse leading to surface shape deviation. The finishing tooling provided by the present application can be designed accordingly according to the shape of the optical part, and is not limited to the disc-shaped carrier plate and the corresponding soft finishing plate shown in the figure.

[0024] See also Figure 1 , Figure 1 The present application provides a finishing tool for soft material optical parts, which includes: a carrier plate 1 and a soft finishing plate 2. Figure 1It shows that the relatively arranged carrier plate 1 and the soft finishing plate 2 are arranged on the finishing device, the soft finishing plate 2 is located below the carrier plate 1, the soft finishing plate 2 is provided with a slot 20, and the carrier plate 1 is provided with a positioning portion 10, and the positioning portion 10 is used to position the soft material optical component 4. When the soft material optical component 4 is placed on the positioning portion 10, the surface to be finished of the soft material optical component can be against the soft finishing plate 2, and the soft material optical component and the soft finishing plate 2 move relatively under the drive of the carrier plate 1, so that the finishing plate 2 can finish the surface to be finished of the soft material optical component 4. Figure 1 As an example, the carrier plate 1 is on the top and the soft finishing plate 2 is on the bottom. The positioning part 10 is used to position the soft material optical part. The positioning here is limited, and the optical part is only placed in the positioning part. Of course, it can also be bonded in the positioning part by wax sealing or the like according to actual conditions. As an option, the soft finishing plate 2 can be a damping cloth polishing pad.

[0025] As an optional embodiment, Figures 1 to 3 As shown, in the finishing tooling for soft material optical parts provided by the present application, the positioning portion 10 is a hollow accommodating cavity provided on the carrier plate 1, and the accommodating cavity is used to accommodate the soft material optical parts. When the carrier plate is placed on the soft finishing plate and the soft material optical parts are placed in the accommodating cavity, the surface to be finished of the soft material optical parts is in direct contact with the soft finishing plate. It should be noted that when the carrier plate 1 is on top, the accommodating cavity can be a through hole so that the surface to be finished of the soft material optical parts is in direct contact with the soft finishing plate.

[0026] As an optional embodiment, the finishing tool for soft material optical parts provided by the present application further includes a pressing block (not shown), and the top of the accommodating cavity is provided with an internal thread ring that matches the thread of the pressing block. This situation is suitable for when the thickness of the optical part is lower than the depth of the accommodating cavity and the pressing block is required to fix the optical part.

[0027] As an optional embodiment, the finishing tool for soft material optical parts provided by the present application also includes a connector 3, which is used to connect to the swing shaft of the finishing equipment. Preferably, the connector 3 is in the shape of a countersunk hole, the bottom of the countersunk hole 3 is in the shape of a concave sphere, and the pressure head of the swing shaft is formed as a top that matches the countersunk hole. The top cooperates with the bottom of the countersunk hole in the shape of a concave sphere, so that the pressure head can drive the carrier plate 1 to move relative to the soft finishing plate while ensuring that the pressure head and the connector are not interfered with.

[0028] As an optional embodiment, in the finishing tooling for soft material optical parts provided by the present application, the shape of the contact surface between the carrier plate 1 and the soft finishing plate 2 is close to the finished shape of the soft material optical part. The contact surface between the soft finishing plate 2 and the soft material optical part 4 needs to conform to the finished shape of the soft material optical part. The shape here refers to the radius of curvature of a plane or sphere. For example, if the soft material optical part is the convex surface of a plano-convex lens, then the soft finishing plate 2 is a concave surface that matches the convex surface. In order to ensure that the contact surface between the carrier plate 1 and the soft finishing plate 2 fits, the contact surface between the carrier plate 1 and the soft finishing plate 2 is close to the radius of curvature of the convex surface.

[0029] As an optional embodiment, Figure 2 and Figure 3 As shown, the finishing tool for soft material optical parts provided by the present application also includes a protective plate 5, which is against the side wall of the accommodating cavity 10. The protective plate 5 can be fixed to the side wall of the accommodating cavity 10 by bonding. The soft material optical part is placed in the accommodating cavity. When the soft material optical part 4 is polished by the finishing tool, the protective plate 5 can be set in the moving direction of the carrier plate 1, and the protective plate 5 can be in front of the soft material optical part 4. Optionally, the protective plate 5 is set facing the moving direction of the carrier plate 1. Figure 2 and Figure 3 As shown, protective plates 5 are respectively arranged in front and behind the soft material optical component 4 facing the direction of the carrier plate 1. The material of the protective plate 5 can be glass material. Optionally, when the soft material optical component is placed in the accommodating cavity, a gap is left between the soft material optical component 4 and the protective plate 5.

[0030] The above are only preferred embodiments of the present invention and are 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 finishing tool for soft material optical parts, characterized in that: The finishing tooling includes a carrying plate and a soft finishing plate, the soft finishing plate is provided with a slot, the carrying plate is provided with a positioning portion, the positioning portion is used to position the soft material optical part, when the carrying plate and the soft finishing plate are relatively arranged on the finishing equipment and the soft finishing plate is located below the carrying plate, when the soft material optical part is placed on the positioning portion, the surface to be finished of the soft material optical part can be abutted against the soft finishing plate, and driven by the carrying plate, the soft material optical part and the soft finishing plate move relatively, so that the soft finishing plate can finish the surface to be finished of the soft material optical part.

2. The finishing tool according to claim 1, characterized in that: The positioning portion is a hollow accommodating cavity provided on the carrier plate, and the accommodating cavity is used to accommodate the soft material optical component. When the carrier plate is placed on the soft finishing plate and the soft material optical component is placed in the accommodating cavity, the surface to be finished of the soft material optical component is in direct contact with the soft finishing plate.

3. The finishing tool according to claim 2, characterized in that: It also includes a pressing block, and the top of the accommodating cavity is provided with an internal thread ring that matches the thread of the pressing block.

4. The finishing tool according to any one of claims 1 to 3, characterized in that: It also includes a connecting head, which is used to be connected to the swing shaft of the finishing device.

5. The finishing tool according to claim 4, characterized in that: The connecting head is in the shape of a countersunk hole, the bottom of the countersunk hole is in the shape of a concave sphere, and the pressure head of the swing shaft is formed as a top point matching the countersunk hole.

6. The finishing tool according to claim 4, characterized in that: The shape of the contact surface between the carrier plate and the soft finishing plate is close to the finished product shape of the soft material optical part.

7. The finishing tool according to claim 3, characterized in that: It also includes a protection plate, which abuts against the side wall of the accommodating cavity.

8. The finishing tool according to claim 7, characterized in that: The protection plate is arranged facing the moving direction of the carrying plate.

9. The finishing tool according to claim 7, characterized in that: When the soft material optical component is placed in the accommodating cavity, a gap is left between the soft material optical component and the protective plate.

10. The finishing tool according to claim 1, characterized in that: The soft finishing plate is a damping cloth polishing pad.

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