基于CATIA/CAA的快速布点技术研究

Research on Rapid Design Technique of Measure Point Based on CATIA/CAA

针对框、梁、壁板、翼肋、双曲面类机身蒙皮、模具型面等三坐标数字化测量前测量布点和数据准备效率低、布点规范性差和测量二维简图生成繁琐等问题,在典型测量特征的布点规则进行整理的基础上,提出了测量布点的算法。在CATIA的环境下,通过CAA二次开发,建立了测量布点平台,实现了框、梁、壁板、翼肋、双曲面类机身蒙皮、模具型面等零件测量点快速布置的功能,提高了测量点和数据的规范性,缩短了测量准备周期,在实际生产中有一定使用价值。

The frame, beam, wallboard, wing rib, hyperboloid fuselage skin and die face should be measured by three coordinate digital measuring system, but the efficiency of measuring point placement and preparing data is low, the normalization of point placement is poor, and the generation process of two-dimensional measuring diagram is complicated. In order to solve these problems, an algorithm of measuring point placement based on placement point rule of typical measurement features is proposed. In the CATIA environment, the platform of measuring point placement is built based on CAA secondary development. The function of rapidly arranging measurement point is realized on the surface of frame, beam, wallboard, wing rib, hyperboloid fuselage skin and die face. It improves the normalization of measurement point and data, shortens the preparation cycle, and the application value is reflected in actual production.