Paper Title:
Research on Interpolation Algorithm for NC Machining Trace Control Based on Midpoint Interpolation
  Abstract

Point-by-point comparison interpolation algorithm is often applied to NC (Numerical Control)system, however,there are some problems such as lag in phase, out of step and low-speed crawl for higher feed velocity( ≥3000mm/min)in multi-axes synchronous machining system, which influences response velocity and interpolation precision of NC system. In view of this, based on the point-by-point comparison principle , the midpoint interpolation algorithm for deviation judgment in NC machining trace control was proposed, mathmatical model of interpolation established, the deviation judgement function of the interpolation algorithm improved and optimized. It is shown from comparative analysis and practical application of midpoint interpolation algorithm that the interpolation precision raises from 1 to 0.5 pulse equivalent, interpolation points reduce greatly, response velocity quickens and interpolation precision heightens as well.

  Info
Periodical
Key Engineering Materials (Volumes 439-440)
Edited by
Yanwen Wu
Pages
828-831
DOI
10.4028/www.scientific.net/KEM.439-440.828
Citation
S. F. Chen, Z. L. Li, F. S. Han, "Research on Interpolation Algorithm for NC Machining Trace Control Based on Midpoint Interpolation ", Key Engineering Materials, Vols. 439-440, pp. 828-831, 2010
Online since
June 2010
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Price
$32.00
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