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Grinding wheel normal tracing method during complex curve grinding process

A technology of curved grinding and curved profile, which is applied in the field of grinding and normal tracking of the grinding wheel, to achieve consistent deformation, avoid undercutting, and consistent stress

Inactive Publication Date: 2007-10-17
RAYMOND BEIJING VALVE MFG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In further searches, no literature reports on grinding wheel normal tracking for complex curve grinding processes have been found so far

Method used

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Embodiment Construction

[0014] The following embodiments are provided in combination with the content of the present invention:

[0015] This embodiment is carried out on the MD9040 digital curve grinder produced by Shanghai No. 3 Machine Tool Plant. The specific implementation process is as follows:

[0016] (1) A sliding seat is designed on the worktable, and the sliding seat can rotate around the fixed axis c within a certain range.

[0017] (2) Calculate the normal tracking angle of each point on the contour of the workpiece curve. The specific calculation process is as follows: First, use a certain interpolation algorithm to interpolate the known workpiece contour to obtain the coordinate data of a series of points on the workpiece contour; then calculate the normal vector of the first tangent point of the curve contour and the grinding wheel The included angle of the radial feed axis θ 0 , To determine the rotation angle of the sliding seat of the worktable at the first tangent point, and realize t...

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Abstract

This invention relates to an abrasive wheel normal tracing method in complex curve grind process, which is used in curve fine grinding field. The method comprises the following steps: a) adding a spinnig axis of bench sliding seat to the digital control shaft, which makes the work-piece outline alterable relative to the abrasive wheel axial cord; b) setting up mathematical model of normal tracing, computing the separation angle theta i between the outline normal line in grinding point and the radical admission shaft; c) making the bench sliding seat deflecting a certain angle with C axis, and making the abrasive wheel axial cord coincidence with the normal line of grinding point according to the theta i of each grinding point. The invention can remain the cutting status of abrasive wheel, and the abrasive wheel is forced evenly, which can avoid the interference from abrasive wheel and work-piece.

Description

Technical field [0001] The invention relates to a grinding method in the technical field of mechanical processing, in particular to a method for tracking the normal direction of a grinding wheel in the grinding process of a complex curve. Background technique [0002] There are generally two grinding methods for complex curve contours: the traditional profiling method and the full CNC grinding method without profiling. The traditional profiling method is to synthesize the profile of the workpiece by imitating the shape. The profile and surface accuracy of the workpiece processed by this method are not high, and each profile of the workpiece must be manufactured One set of profiling has low processing efficiency and poor flexibility. The non-profiling full numerical control grinding method is developed with the development of computer technology and digital control technology. This method realizes the linkage control of the movement of the workpiece and the grinding wheel through ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B24B51/00
Inventor 罗玉梅吴琦胡德金范浩裴景玉
Owner RAYMOND BEIJING VALVE MFG
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