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Grinding wheel normal tracing method during complex curve grinding process

A technology of curve grinding and curve profile, which is applied in the field of grinding and normal tracking of grinding wheel, to achieve the effect of consistent force, avoid undercutting and ensure balance

Inactive Publication Date: 2005-11-23
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] Provide following embodiment in conjunction with content of the present invention:

[0015] This embodiment is carried out on the MD9040 digital curve grinding machine produced by Shanghai No. 3 Machine Tool Factory, and the specific implementation process is as follows:

[0016] (1) Design a sliding seat on the workbench, which can rotate around the fixed axis c within a certain range.

[0017] (2) Calculate the normal tracking angle of each point on the workpiece curve profile. The specific calculation process is as follows: First, use a certain interpolation algorithm to interpolate the known workpiece curve 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 Angle θ of radial feed axis 0 , to determine the rotation angle of the table slide at the first tangent point, and realize the normal tracking of the first tangent point; fi...

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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 grinding wheel normal tracking method in a complex curve grinding process. Background technique [0002] There are generally two types of grinding methods for complex curve profiles: the traditional profile grinding method and the full CNC grinding method without profiles. The traditional profile grinding method is to synthesize the profile of the workpiece by imitating the shape. The profile accuracy and surface accuracy of the workpiece processed by this method are not high, and each profile of the workpiece needs to be manufactured. One set of profiles has low processing efficiency and poor flexibility. The full numerical control grinding method without model is developed with the development of computer technology and digital control technology. This method realizes the linkage control of the workpiece and the grinding wheel movement thro...

Claims

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Application Information

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Patent Type & Authority Applications(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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