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位移度是《GB 1183-75表面形状和位置公差》中位置公差的一个项目,是形位公差中一个较新的概念。由于采用位移度标注有以下优点:1.能充分利用公差带,有利于加工和装配;2.避免了误差的积累,加工和装配比较经济合理;3.公差带只有一种解释,清楚明了;4.位移度可以控制其它有关的形位公差,能体现综合要求,有利于提高产品质量。因此,不仅在大批大量生产过程中采用组合机床、专用机床和夹具加工以及使用综合量规检验的情况下,应广泛采用,而且在小批单件生产中采用
Displacement is an item of positional tolerance in “GB 1183-75 Surface Shape and Position Tolerance” and is a relatively new concept in form tolerances. Because of the use of displacement of the mark has the following advantages: 1. To take full advantage of the tolerance zone is conducive to processing and assembly; 2. To avoid the accumulation of errors, processing and assembly more economical and reasonable; 3. Tolerance with only one explanation, clear; 4. Degree of displacement can control the other related to the form of tolerances, can reflect the comprehensive requirements, help to improve product quality. Therefore, not only in the mass production process using a combination of machine tools, special machine tools and jig processing and the use of integrated gauge test case, should be widely used, but also used in small batch production