A Smoothing Method of Small Line Segment Based on Space Plane Normal Vector

Abstract

The present invention provides a method for smoothing small line segments based on normal vectors of space planes, including preset determination angle values, maximum processing lengths of line segments, and maximum allowable deviation distances; smoothing methods for small line segments based on normal vectors of space planes includes the following Steps: 1) Read the NC equipment file and scan the instructions in the NC program one by one; 2) Determine whether the instructions in the current NC program are linear interpolation codes, if not, go to step 1); Complement the code, then enter step 3); 3) judge whether to carry out smooth processing to the current linear interpolation code line segment; 4) carry out smooth processing to the current linear interpolation code line segment; 5) judge whether to reach the end point in the numerical control program , if it ends the operation, if not, go to step 1). The invention has the advantages of fast operation speed and good processing quality.

Description

technical field [0001] The invention relates to the field of numerical control machining, in particular to a method for smoothing small line segments based on space plane normal vectors. Background technique [0002] In the field of numerical control machining, the numerical control system generally performs machining according to the path described by the NC code generated by CAM (Computer Aided Manufacturing) software. For the most commonly used linear interpolation code (G01) in the domestic NC machining industry today, its trajectory is composed of a large number of tiny straight line segments approaching the workpiece surface. When the workpiece surface is a complex curved surface, in order to meet the machining contour accuracy requirements, the CAM software The number of small line segments generated will increase significantly, and the length of the line segments will also be shortened accordingly, so it is inevitable that there will be irregularities between the cod...

AI Technical Summary

Problems solved by technology

[0003] The current smoothing method has high performance in theory, but it still encounters problems such as difficult determination of curve composition conditions, complex program implementation, and difficulty in applying to real-time numerical control systems. During the processing process, the processing speed and processing quality will be reduced. However, the ideal effect cannot be achieved in practical applications, and there is currently no smoothing method for small line segments using the normal vector of the space plane

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