【摘要】 研究了三维公差累积的运动学模型及其在计算机辅助公差设计中的应用。基于机器人学中的运动学分析方法研究了自参考和互参考公差域的旋量参数及其约束不等式 ;给出三维公差累积的运动学模型的一般表示式 ;研究了此模型在公差优化设计中的应用。一个齿轮泵的实例验证了此模型的有效性更多还原

【Abstract】 Kinematic model of 3D tolerance accumulation and its application in computer aided tolerancing are studied in this paper. Based on the method of kinematic analysis in robotics, screw parameter and constraint inequation of self- and cross- referenced tolerance zone are investigated; the general expressions of kinematic model of 3D tolerance accumulation are presented. The application of the model to tolerance optimization design is studied. An example of gear pump is analyzed to show the model effectiveness.更多还原