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Milling and grinding tool and method for sapphire optical head cover

A technology of optical head and sapphire, which is applied in the direction of grinding workpiece support, etc., can solve the problems of deepening damage depth, increasing polishing depth, prolonging polishing time, etc., and achieves the effect of good shape and position accuracy and high positioning accuracy

Inactive Publication Date: 2018-07-03
TIANJIN JINHANG INST OF TECH PHYSICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the surface can obtain better surface roughness, the depth of damage is actually deepening, which greatly increases the polishing depth and prolongs the polishing time

Method used

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  • Milling and grinding tool and method for sapphire optical head cover
  • Milling and grinding tool and method for sapphire optical head cover
  • Milling and grinding tool and method for sapphire optical head cover

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Embodiment Construction

[0021] In order to make the purpose, content and advantages of the present invention clearer, the specific implementation of the present invention will be described in further detail below with reference to the accompanying drawings and embodiments.

[0022] Reference figure 1 As shown, the milling tool for the sapphire optical head cover provided in this embodiment includes a supporting part 2, a connecting screw 3, and a tool joint 4. The supporting part 2 is a flat bakelite with a through hole in the center and a flat top support surface. The diameter of the top support surface is larger than the radius of the bottom surface of the part to be processed 1 placed on it; the tooling joint 4 is made of copper with a through hole in the center; the connecting screw 3 coaxially connects the supporting part 2 and the tooling joint 4, and the tooling joint 4 Connected with a vacuum suction machine, after vacuuming the inside of the supporting part 2 and the tooling joint 4, the part 1 ...

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Abstract

The invention discloses a milling and grinding tool for a sapphire optical head cover. The milling and grinding tool comprises a supporting part, a connecting screw and a tool joint. The supporting part is plane bakelite, a through hole is formed in the center of the supporting part, and the top supporting surface of the supporting part is a plane. The aperture of the top supporting surface is larger than the bottom surface radius of a to-be-machined part placed on the top supporting surface. A through hole is formed in the center of the tool joint. The supporting part and the tool joint are coaxially connected through the connecting screw. The tool joint is connected with a vacuum adsorption machine. After the supporting part and the interior of the tool joint are vacuumized, the effect that the to-be-machined part is fixed to the top of the supporting part is achieved. According to the milling and grinding tool for the sapphire optical head cover, under the situation that one tool isused and can be reused, milling and grinding forming of the concave-convex spherical surface, the end face and the outer circle of the sapphire optical head cover is achieved, high positioning precision is ensured, and the form and position precision of the milling and grinding tool is controlled well.

Description

Technical field [0001] The invention belongs to the technical field of optical parts processing, and relates to a milling tool and a milling method of a sapphire optical head cover. Background technique [0002] At present, the sapphire optical head cover has a low degree of numerical control due to its material characteristics. In the processing of optical parts, the shape accuracy and position accuracy of CNC milling have a greater impact on the subsequent polishing process, so the accuracy of milling is required to be higher. In the CNC milling of sapphire optical parts, general milling methods need to be used as a reference for a certain feature, and multiple positioning is performed when the various technical requirements of the part shape are met. Generally, when processing the outer circle, the diameter of the tooling used is smaller than that of the part, but this kind of tooling will increase the processing risk and is not conducive to the processing of other shape and ...

Claims

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Application Information

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IPC IPC(8): B24B41/06
CPCB24B41/06
Inventor 沈羿王朋魏国梁
Owner TIANJIN JINHANG INST OF TECH PHYSICS
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