FIVE-AXIS DOUBLE SPLINE CURVES INTERPOLATION SPEED PLANNING METHOD

WIPO Patent Application WO/2019/047458

A1

A five-axis double spline curves interpolation speed planning method, related to constant-speed double spline curves interpolation speed planning methods in a speed sensitive range under the physical axis drive performance constraints of a five-axis computer numerical control machine. The method calculates the first to third orders of differentials of a parameter of physical axis positions of a five-axis computer numerical control machine with respect to the arc length of a blade tip trajectory on the basis of equal arc length dispersion performed on a blade tip trajectory curve (1), thus acquiring a relation between a physical axis movement and a cutting tool trajectory. With axial drive performance limiting conditions serving as constraints and with a balance between processing operation stability and processing efficiency as a goal, optimized is the seeking of the speed sensitive range. By means of two-way scanning, speed values and parameters of speed increase and decrease starting point curves of speed-sensitive ranges are determined. The present method effectively balances the processing efficiency and processing quality of five-axis interpolation, the computational efficiency of the algorithm is high, and the real-time performance is great.

JIA ZHENYUAN (CN)
MA JIANWEI (CN)
SONG DENING (CN)
CHEN SIYU (CN)
HE GUANGZHI (CN)
WANG FUJI (CN)
LIU WEI (CN)

PCT/CN2018/071689

March 14, 2019

January 07, 2018

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UNIV DALIAN TECH (CN)

G05B19/416

CN105759725A	2016-07-13
CN102298358A	2011-12-28
CN103592891A	2014-02-19
CN104281099A	2015-01-14
CN101976060A	2011-02-16
JP2006053789A	2006-02-23

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