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针对计算机辅助夹具设计(CAFD)中装夹规划问题,开发了自动装夹规划系统,并以工件装夹表面的影响性分析为核心,完成工件上装夹表面及点的优化选择:讨论了几个用以评估候选装夹表面的适合性的要点;利用离散技术,基于所有表面离散点影响性的评估,建立了装夹表面影响性模型;并给出了系统运行要点和分析设计实例.“,”To counter the fixture planning of computer-aided fixture design (CAFD), an automated modular fixture configuration design system is developed. Having fixture surface accessibility analysis as the core, the optimum selection of fixturing surfaces and points on workpiece is fullfilled. Firstly, several basic criteria for evaluating the eligibility of a surface being a preliminary candidate fixturing surface are discussed. Secondly, by applyinga discretization technique, an accessibility model of fixturing surfaces is established based on an overall evaluation of the accessibility of discrete points on the surface. Finally, the implementation issue and an analysis/design example are presented.