计算机辅助工艺过程尺寸设计

本文基于工艺过程设计中尺寸图表技术建立了用于计算机辅助工艺过程尺寸设计,称为阵-树-链的数学模型。同时构造了用于工序尺寸偏差确定及分配的算法。简单介绍在VAX11/750计算机上开发的交互式计算机辅助工艺过程尺寸设计系统CADP（Computer Aided Dimensional Planning）。

COMPUTER AIDED DIMENSIONAL PLANNING

The work described is intended to develop an interactive computer aided dimensional planning system that can be used to perform efficiently the calculation for dimensional planning, to adjust economically and reasonably the working tolerances for each machining operation in any program of process planning. To this end, a mathematical model, incorporating a Matrix-Tree-Chain method, of a tolerance chart and the method of tracing has been established based on the tolerance chart technique. It makes possible the calculation and adjustment of working tolerances in the process of dimensional planning on a computer.A mathematical method for specification and adjustment of tolerances in manufacturing processes is proposed.The interactive computer aided dimensional planning system （CADP） is presented, which can work independently or be integrated with a CA-PP （Computer Aided Process Planning） system.