摘要
微小精密的零件因易变形、形状特殊和难装夹等特点,不宜用接触法测量,采用光学测量可减少量具和夹具夹紧引起的变形误差和热膨胀误差。利用光学测量CAD软件的输出功能,可以实现零件的二维CAD制图和三维CAD模型构建,实现由实物到模型的反求设计,为零件的仿制和改型设计提供可行方法。
Small and precision parts are often characterized by easy to deformation, special shape, difficult to clamp and other characteristics, which should not be measured by contact method.Optical measurement can reduce the deformation error and thermal expansion error caused by measuring tools and fixtures.With the CAD output function of optical measurement and CAD software, 2-dimensional CAD drawing and 3-dimensional CAD model construction of parts are achieved, the reverse design from physical part to model is realised, and feasible methods for the imitation and modification design of parts is provided.
作者
许耀东
吴悦乐
Xu Yaodong;Wu Yuele(Man-ufacturing Engineering Department,Shanghai University of Engi-neering Science,Shanghai 200437,China;不详)
出处
《工具技术》
北大核心
2022年第7期143-145,共3页
Tool Engineering
关键词
精密零件
光学测量
二维CAD
三维模型
反求设计
PRO/E
precision part
optical measurement
2-dimensional computer aided design
3-dimensional model
reverse design
Pro/E
