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An Optimal Feed Interpolation with Jerk-Limited Acceleration for Five-Axis Grinding

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Abstract:

To overcome the acceleration discontinuity and feed fluctuation of the conventional five-axis grinding interpolator, a jerk-limited acceleration is utilized and two aspects of constraints is taken into account: (1) the machining dynamics, including the constraints of power, velocity, acceleration and jerk represented by upper bounds for each axis (2) the contour constraints of linear segments, including the linear distance of the segment and sharp corner at the segment junctions. With the analysis of these constrains, the optimal feed for each segment and the joint feed at the segment junctions is derived. The corresponding adjusted interpolation algorithm with jerk-limited acceleration is presented such that a smooth motion during the machining can be maintained. The presented algorithm is demonstrated by the simulation result.

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Periodical:

Key Engineering Materials (Volumes 359-360)

Pages:

204-209

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.359-360.204

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Online since:

November 2007

Authors:

Jing Chun Feng, Yu Hao Li, Yu Han Wang, Ming Chen

Keywords:

Five-Axis Grinding, Interpolation, Jerk-Limited, Optimal Feed

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© 2008 Trans Tech Publications Ltd. All Rights Reserved

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