Dimensional tolerance allocation for new type of parallel machine tools

作者：Li B^*; Wang Z X; Hu Y

来源：Journal of Harbin Institute of Technology, 2000, 7(4): 67-71.

• Tolerance allocation

The paper presents an inverse error estimation method for deriving errors of links from cutter head errors to overcome the difficulty in obtaining analytic solutions for new type of machine tools due to the multi-solution of direct kinematics so that the total dimension chain tolerance of machine tool links can be determined by Monte-Carlo random simulation for a certain spindle dimension of the machine tool and the precision requirement specified, and the method of dimensional tolerance allocation developed by analysing the elements of machine tool links and the combination of machine tool precision with actual dimensional tolerance for justification of tolerance design for this kind of machine tools.

• 出版日期2000