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Ultra-precise rapid-cutting-combination machining-forming method for optical complex curved surface of brittle material

A complex surface, fast cutting technology, applied in the direction of manufacturing tools, other manufacturing equipment/tools, etc., can solve the problems of easy embedding of abrasives, low processing efficiency, optical function failure, etc., to ensure performance, improve processing efficiency and cutting stability. sexual effect

Inactive Publication Date: 2017-11-03
TIANJIN UNIV
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  • Claims
  • Application Information

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Problems solved by technology

However, the grinding method uses tiny abrasive particles to repeatedly grind the optical device into shape, the processing efficiency is low, and for soft and brittle materials, abrasives are easy to embed into the interior to form impurities and defects, which in turn cause the failure of optical functions

Method used

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  • Ultra-precise rapid-cutting-combination machining-forming method for optical complex curved surface of brittle material
  • Ultra-precise rapid-cutting-combination machining-forming method for optical complex curved surface of brittle material
  • Ultra-precise rapid-cutting-combination machining-forming method for optical complex curved surface of brittle material

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specific Embodiment approach

[0023] The invention proposes the combination of "flying cutter-milling-turning-fast servo" ultra-precision fast cutting to realize the processing of complex curved surfaces of brittle materials, which overcomes the contradiction and conflict between the surface quality of complex curved surfaces and the processing performance of brittle materials in the processing process. Difficulty, it guarantees the performance of complex curved surfaces very well. Due to the combined effect of multiple cutting methods, different fast cutting methods can be selected according to the shape characteristics of complex curved surfaces to be processed, and this idea is effectively used for low-damage cutting of brittle materials. The specific implementation is as follows:

[0024] 1. According to the characteristics of the complex surface, calculate the non-rotation and curvature of the surface shape, and choose the "flying knife-milling-turning-fast servo" ultra-precision fast cutting combined...

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Abstract

The invention relates to an ultra-precise fast cutting combined processing forming method for optically complex curved surfaces of brittle materials, which meets the processing requirements of different complex curved surface features: according to the characteristics of complex curved surfaces, the degree of non-rotation and curvature of the surface shape are calculated, and a suitable ultra-precise fast cutting method is selected and used. Cutting processing method, the selected processing method; consider the dynamic characteristics of the processing system under fast cutting, design a reasonable tool holder system; design appropriate cutting parameters and tool geometry parameters according to the characteristics of the fast cutting process and the cutting performance of the material; based on the processing parameters Generate and compensate the machining path with the geometric parameters of the tool. The tool contour forms the machined surface after passing through the path; the workpiece is assembled on the machining platform for fast cutting. The high-frequency reciprocating motion of the dimensions is combined and controlled synchronously to produce a controllable cutting depth and form a complex surface shape.

Description

technical field [0001] The invention belongs to the field of ultra-precision processing and optical processing in advanced manufacturing, and is especially suitable for optical surface processing of brittle materials and optical complex surface processing. Background technique [0002] Optical complex surfaces are non-rotationally symmetric optical surfaces whose surfaces vary freely. The application fields of optical complex surfaces are extremely wide, covering multiple interdisciplinary fields such as new energy, aerospace, lighting imaging, and bioengineering. Compared with traditional optical surfaces, optically complex curved surfaces have superior performance, and its large degree of freedom can effectively control the propagation of light, which can help expand the field of view and reduce distortion. At the same time, for multi-optical device systems, adding complex curved surfaces Reduce system volume and weight while improving system imaging quality. [0003] Br...

Claims

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Application Information

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IPC IPC(8): B23P23/04
CPCB23P23/04
Inventor 房丰洲张效栋李泽骁
Owner TIANJIN UNIV
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