Improved spatial acceleration and jerk distributions for grinding force smoothness and energy-saving in reciprocating machining

Reciprocating motion is popular in mechanical processing. The smoothness of machining directly affects the processing quality, energy efficiency, and durability of machine tools. This study investigated the influence of velocity planning on the cutting force smoothness and energy consumption of reci...

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Bibliographic Details
Published in:	Journal of manufacturing processes 2023-07, Vol.98, p.186-195
Main Authors:	Liming, Xu, Kunzi, Wang, Chaolong, Xie, Lun, Shi
Format:	Article
Language:	eng
Subjects:	Energy saving Grinding process Jerk distribution Reciprocating machinery Velocity planning
Online Access:	Get full text
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Summary:	Reciprocating motion is popular in mechanical processing. The smoothness of machining directly affects the processing quality, energy efficiency, and durability of machine tools. This study investigated the influence of velocity planning on the cutting force smoothness and energy consumption of reciprocating machinery. First, typical methods of velocity planning for reciprocating machinery were analyzed. A planning algorithm with improved spatial jerk distribution was designed to reduce the influence of flexible impact on the surface quality after reciprocating machining. The acceleration distribution was optimized to improve energy efficiency. Various planning algorithms were simulated and compared in two cases: with and without a constant-velocity period. The grinding force smoothness, surface quality, and power consumption achieved through each type of planning were then evaluated. The experimental results indicate that optimizing the spatial acceleration and jerk distributions can improve the force smoothness of machining and reduce the influence of flexible impact, attenuating surface roughness. Considerable energy can be saved by smoothing the jerk trajectory and optimizing the spatial acceleration distribution for reciprocating grinding. The proposed type II velocity planning based on an improved spatial acceleration-jerk distribution comprehensively outperformed other types of planning.
ISSN:	1526-6125 2212-4616