Paper Title:
A Parametric Interpolator with Smooth Kinematic Profiles for High Speed Machining
  Abstract

Smooth kinematic profiles are very important for high speed curve machining. During parametric interpolation, simple adaptive feedrate with confined contour error may cause acceleration and jerk to fluctuate acutely. To avoid the undesirable influence, an interpolation algorithm for parametric curves with smooth kinematic profiles is presented. The interpolator consists of three parts, look-ahead module, feedrate planning module and interpolation module. In look-ahead module, a pre-interpolator is designed to produce the required feedrate profile considering chord error. By feedrate planning, a smooth feedrate profile with confined acceleration and jerk is schemed based on bell-shape ACC/DEC profile by feedrate profile matching and feedrate profile synthesis. Then the parametric curve can be interpolated with the planned feedrate in interpolation module. Simulation results have been also provided to illustrate that the proposed interpolator can generate smooth kinematic profiles required for the high tracking accuracy at high speed with confined chord error, acceleration and jerk, and can be used for high speed and precision curve machining.

  Info
Periodical
Key Engineering Materials (Volumes 315-316)
Edited by
Zhejun Yuan, Xipeng Xu, Dunwen Zuo, Julong Yuan and Yingxue Yao
Pages
169-173
DOI
10.4028/www.scientific.net/KEM.315-316.169
Citation
Y. P. You, J. He, "A Parametric Interpolator with Smooth Kinematic Profiles for High Speed Machining", Key Engineering Materials, Vols. 315-316, pp. 169-173, 2006
Online since
July 2006
Authors
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: H.Y. Shen, Jian Zhong Fu, Zi Chen Chen
Abstract:The proposed Axis-based Look-ahead NURBS Interpolator (ALANI) strictly confines the component acceleration and jerk at each axis during...
355
Authors: Kun Ren, H.G. Chen, Wen Hua Chen, Jun Pan
Abstract:To guarantee the efficiency and accuracy of machining in high speed machining, a novel vector blending algorithm for velocity smooth link is...
243
Authors: Zhui Liang Huang, Shu Wen Lin, Dao Ying Jiang
Abstract:In allusion to the problem of data sampling interpolation error which exists in continuous micro-line segments interpolation algorithm with...
19
Authors: Hong Ping Xu, Ling Dong Wu, Yi Wang, Liang Yi Li
Chapter 2: Simulation and Engineering Optimization
Abstract:To study the kinematic characteristics of a new designed flange vertical lathe with double machining tools, a virtual prototype model was...
302
Authors: Fang Song, Shuang Hui Hao, Ming Hui Hao
Chapter 3: Mechatronics Engineering
Abstract:The paper presents a novel acceleration/deceleration (acc/dec) control algorithm based on moving-average. The proposed algorithm makes use of...
1584