Fast servo ultraprecise fly cutting machining method for brittleness material complex curved surface

Abstract

The invention relates to a fast servo ultraprecise fly cutting machining method for a brittleness material complex curved surface. The method includes the following steps that a machining system with a fast servo mechanism and fly cutting being combined is established; when a machined device is subjected to fly-cutter machining, a cutter is provided with an area nearest to the machined device every time a spindle is rotated once; at the area, due to the fact that the rotating speed of the fly-cutter spindle is unchanged, when the cutter makes contact with the surface of a workpiece, the fast servo mechanism can be used for driving the workpiece to make single-degree-of-freedom high-frequency motion in the cutting-in direction or make multi-degree-of-freedom high-frequency motion in the cutting-in direction and transverse feeding direction so as to be matched with fly-cutter rotation, and an array structure and complex surface can be machined; the proper cutting parameters and cutter geometrical parameters are designed; motion synchronization is achieved by controlling the servo motion and fly-cutter rotation angle, and thus the back cutting depth can be controlled when materials are cut; and finally cutter motion trajectories make fast and smooth traverse motion on the surface of the machined device.

Description

technical field [0001] The invention relates to a cutting processing method. 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] Brittle materials (such as semiconductor materials, optical crystal materials, etc.) have excellent ultraviolet or infrared transmittance, high damage threshold, high refractive inde...

AI Technical Summary

Problems solved by technology

The present invention aims at the technical requirements of microstructure curved surface processing and the cutting performance of brittle materials, can solve the difficulty of complex curved surface forming methods, avoid the problem of easy damage to brittle materials during cutting, and realize high-efficiency, low-damage and high-precision processing of brittle materials with complex curved surfaces

Images