Numerical control aspherical processing method adopting tangent method and machine tool

A processing method and aspheric surface technology, applied in metal processing equipment, grinding machines, manufacturing tools, etc., can solve the problems of difficult processing of aspheric optical parts, and achieve the effect of simple and easy operation technology, easy promotion and popularization, and reduced processing cost

Inactive Publication Date: 2011-05-18
CHANGCHUN UNIV OF SCI & TECH +2
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Problems solved by technology

In view of this status quo and development direction, the applicant proposes a tangential CNC machining aspheric surface method and machine tool technology, in order to solve the problem of difficult processing of aspheric optical parts

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  • Numerical control aspherical processing method adopting tangent method and machine tool
  • Numerical control aspherical processing method adopting tangent method and machine tool
  • Numerical control aspherical processing method adopting tangent method and machine tool

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Embodiment Construction

[0041] figure 1 The geometrical characteristics of any aspherical meridional profile locus curve L given in the optical design shown can be given by the mathematical equation X=f(y). That is, given any y i The value can be substituted into the given equation to find the corresponding x i value, so any point P of the given equation i (x i 、y i ) can be obtained. The curve of a circle has the characteristics of countless axes of symmetry, while the curve of an aspheric surface has only one axis of symmetry OX. Any point P other than the vertex O of the curve L i The normal ρ i Intersection O with the axis of symmetry OX i The distance is Ci (Ci=Ro+Xi), and the included angle is θ i , so at any point on the curve, you can also use P i (Ci, ρ i , θ i )To represent. According to the given curve equation, any P can be deduced by using the knowledge of elementary and advanced mathematics. i Point characteristic parameters Ci, ρ i and θ i The mathematical expression of...

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Abstract

The invention relates to a numerical control aspherical processing method adopting a tangent method and a machine tool. The method is as follows: any of axisymmetric high-order aspheric surface and quadratic aspheric surface and spherical surface which are given for design is processed by the tangent method to obtain a smooth and continuous high precision surface without waviness in theory. The processing principle in the invention is that the point M of a wheel spindle coincides with the rotation axis, namely z-axis, a workpiece is driven by a workpiece shaft to rotate, a grinding wheel rotates on the wheel spindle, and the wheel spindle adopts the point M as the datum point to rotate around the z-axis and moves along the X-axis and the Y-axis. The three-axis motion of the wheel spindle utilizes the numerical control method of the speed interpolation principle to realize high precision three-axis linkage. The processing technology in the invention has the advantages that the universality is good, the surface shape precision, the surface roughness and the surface quality are easy to ensure, the processing efficiency is high, the processing cost is low and the like.

Description

technical field [0001] The invention relates to a method for processing optical parts and a machine tool Background technique [0002] The use of aspherical optical parts improves the imaging quality and performance of the optical system, and greatly reduces the volume and weight of optical instruments. With the development of high-tech, astronomy, aerospace, aviation, weapons, electronics, laser, optical communication and nuclear fusion and other technologies, aspherical optical components are required in the optical systems of many civil and defense products. For this reason, the technology to solve multi-variety batch and variable batch processing of aspheric optical parts has become a bottleneck technology to be solved urgently. [0003] In fact, in order to make aspheric optical parts widely used, people have been exploring and researching the processing technology of aspheric optical parts. According to the statistics of novelty information, there are about 50 patent...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B24B19/00
Inventor 朴承镐于化东耿振野于正林顾莉栋轩洋
Owner CHANGCHUN UNIV OF SCI & TECH
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