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

Abstract:

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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.

Info:

Periodical:

Key Engineering Materials (Volumes 359-360)

Edited by:

Jiuhua Xu, Xipeng Xu, Guangqi Cai and Renke Kang

Pages:

204-209

DOI:

10.4028/www.scientific.net/KEM.359-360.204

Citation:

J. C. Feng et al., "An Optimal Feed Interpolation with Jerk-Limited Acceleration for Five-Axis Grinding ", Key Engineering Materials, Vols. 359-360, pp. 204-209, 2008

Online since:

November 2007

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Price:

$35.00

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