Low-polishing machining clamp suitable for large diameter
By designing low-throwing fixtures suitable for large diameters, traditional hot paint fixtures have solved the problem of stress and complex fixing process on optical parts, achieving a more convenient processing process and a higher part surface protection effect.
Patent Information
- Application Number
- CN202422006052.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-19
- Publication Date
- 2025-06-06
- Estimated Expiration
- 2034-08-19
AI Technical Summary
During the low-throwing processing of optical parts, the traditional hot paint fixing method creates strong stress on large-diameter parts, resulting in inaccurate surface shape, and complex fixing process and inconvenient disassembly monitoring.
Large diameter low throwing fixtures are used instead of traditional hot paint fixtures. The fixture design includes the main body, part placement groove, POM anti-collision ring and threaded connection. It can fit almost completely with the parts, reduce stress, and balance air pressure through the through holes for easy disassembly.
It achieves more convenient and fast operation, saves processing time, protects the surface of parts from stress, ensures the accuracy of surface shape, and avoids the risk of parts explosion caused by hot paint heating.
Smart Images
Figure CN222945263U_ABST
Abstract
Description
Technical Field
[0001] The utility model discloses a low-throw processing fixture suitable for large diameters, belonging to the technical field of cold processing of optical products. Background Art
[0002] In the field of optical processing, fine grinding and polishing are the most basic and key processes in the manufacturing process of optical parts. The upper plate fixture of the parts is directly related to the final quality and processing effect of the optical parts. In the polishing process, low-polishing processing is also a common method.
[0003] In the prior art, in the common low-polishing process, the parts to be polished are usually fixed on the sticky disc with sealing wax. When the diameter of the parts is large, the contact area between the sealing wax and the parts increases accordingly. The sealing wax will produce strong stress on the parts, which will eventually cause the surface of the parts to rebound after the sealing wax is removed, seriously affecting the accuracy of the surface of the parts. In addition, the sealing wax has strict requirements when fixing the parts. Once the fixing is uneven, it will affect the polishing effect. The sealing wax and the parts need to be heated when combined, but too high heat can easily cause the parts to explode. At the same time, the process of fixing the parts with sealing wax is complicated and time-consuming, and it is not convenient to disassemble and monitor after fixing. Utility Model Content
[0004] In order to solve the shortcomings of low-throw sealing wax, it is necessary to use a clamp instead of the traditional sealing wax to fix the parts, and the clamp needs to fit the parts almost completely.
[0005] The utility model is suitable for large diameter low throw processing fixtures, such as Figure 1 As shown, it comprises: a main body 1, wherein the upper end of the main body 1 is provided with a parts placement groove, and the outer periphery is provided with a chamfer 2, the lower end of the main body 1 is a partially hollow cylinder, and the inner surface is provided with a thread, and the inner surface of the parts placement groove is concave or convex;
[0006] A POM anti-collision ring 3 is installed around the parts placement groove at the upper end of the main body 1.
[0007] The technical effects of the utility model are as follows: the utility model improves the large-diameter low-throw processing tooling, and adopts a clamp to replace the traditional low-throw wax fixation. First, the operation is more convenient, saving processing time, and the parts can be removed at any time for easy measurement. Secondly, the utility model can better protect the surface of the parts, will not generate large stress on the parts, and thus will not affect the accuracy of the surface shape of the parts. Finally, the utility model does not require heating, and there is no need to worry about the parts bursting. BRIEF DESCRIPTION OF THE DRAWINGS
[0008] Figure 1 It is a schematic diagram of the structure of the utility model and also serves as an abstract drawing.
[0009] Figure 2 It is a schematic diagram of the top structure of the utility model. DETAILED DESCRIPTION
[0010] like Figures 1-2 As shown, the utility model is suitable for a large-diameter low-polishing processing fixture, comprising: a main body 1, a part placement groove is provided at the upper end of the main body 1, and a chamfer 2 is provided around the outside. During the low-polishing process, the polishing tool can be more conveniently and quickly aligned with the part for polishing. The lower end of the main body 1 is a partially hollow cylinder, and the inner surface is provided with a thread, which can be connected and fixed with an external device. The inner surface of the part placement groove is concave or convex, and its shape changes with the radius of the corresponding part, and the root cleaning is done around the edge, so that it can almost completely fit with the part. Four through holes 4 are also provided under the part placement groove. If water intrudes during the polishing process, it will cause the fixture to have a greater adsorption on the part. The through hole 4 will balance the internal and external air pressure and reduce the adsorption of the fixture to the part. Even if some water remains, the part can be easily poked out and disassembled through the through hole 4.
[0011] A POM anti-collision ring 3 is installed around the part placement groove at the upper end of the main body 1 to prevent the parts from being scratched during the polishing process.
[0012] Furthermore, the material of the main body 1 is preferably aluminum.
[0013] During the processing, the low-polishing processing fixture suitable for large diameters is fixed to the external device through the thread at the lower end of the main body 1, the parts are placed in the part placement groove at the upper end of the main body 1, and clamped and fixed with the POM anti-collision ring 3, and then low-polishing is performed with a polishing tool.
Claims
1. Suitable for large diameter low throw machining fixture, characterized by: include: A main body (1), wherein the upper end of the main body (1) is provided with a parts placement groove, and the outer periphery is provided with a chamfer (2); the lower end of the main body (1) is a partially hollow cylinder, and the inner surface is provided with a thread, and the inner surface of the parts placement groove is concave or convex; A POM anti-collision ring (3) is installed around the parts placement groove at the upper end of the main body (1).
2. The low-throw machining fixture suitable for large diameter according to claim 1 is characterized in that: The main body (1) is made of aluminum.
3. The low-throw machining fixture suitable for large diameter according to claim 1 is characterized in that: Four through holes (4) are also provided below the part placement groove at the upper end of the main body (1). The through holes (4) can balance the internal and external air pressures, reduce the adsorption of the parts, and the parts can be poked out through the through holes (4).