固定装置
大地基准
机械加工
运动学
点(几何)
职位(财务)
工程制图
工程类
平面(几何)
代表(政治)
边界(拓扑)
夹紧
机械工程
计算机科学
算法
数学
几何学
地质学
数学分析
大地测量学
经典力学
政治
物理
经济
法学
政治学
财务
作者
Roland Menassa,Warren R. DeVries
出处
期刊:CIRP Annals
[Elsevier]
日期:1989-01-01
卷期号:38 (1): 165-169
被引量:52
标识
DOI:10.1016/s0007-8506(07)62676-6
摘要
A method for selecting and positioning locating points in fixture design is proposed. The types of fixture applications considered are for prismatic workpieces that use the 3-2-1 locating principle as the general structure of the fixture. The design synthesis problem uses six rules based on machining practice to select the secondary and tertiary locating datums for a workpiece stored in a boundary representation solid modeler. Once these edges are selected, kinematic rules are used to determine the position of the locating points so as to allow accessibility when loading and unloading a workpiece. Examples are given to illustrate this method, as well as the positioning of support points on the primary datum plane.
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