A Novel Spatial Mechanism with Redundant Elastic Constraints for Accuracy-characterization Analysis of an Actual Linear Guide
When considering geometrical errors and component flexibility,the slider in an actual linear guide will move in much more complex manner in comparison with an ideal one.These differences and its load-dependent properties form the accuracy and accuracy-characterization of a linear guide.A novel spatial mechanism with redundant elastic constraints is presented to set up a comprehensive accuracy-characterization model of an actual linear guide.Where the rigid conjugate cam profiles are specified to represent the geometrical errors; springs are used to represent the redundant elastic constraints and deformations of the joint components.The framework,suspended by multiple followers,is used to simulate kinematics of the slider.The basic equations of the mechanism are discussed,with which the accuracy-characterization analysis of a linear guide can be seen as the displacement analysis of a corresponding RE mechanism.Finally,an example is presented to illustrate the solution process and application of the accuracy model.
Mechanism Linear guide Accuracy
Zhi Wang Delun Wang Huiming Dong Shudong Yu
School of Mechanical Engineering,Dalian University of Technology,Dalian 116024,China Department of Mechanical & Industrial Eng.,Ryerson University,Toronto M5B2K3,Canada
国际会议
天津
英文
1-5
2014-07-06（万方平台首次上网日期，不代表论文的发表时间）