1.前言这种用三坐标测量仪来测量内外螺纹的先进方法,带有单球或双球的触针式接触测头,和专用计算机软件。小球直径必须根据是用单面或双面接触法和所测螺距来选择。因此这种方法受到大的直径和螺距的限制。简单的光学法测螺纹,通常是用工具显微镜,用阴影法测量。显微镜的轴必须根据螺纹 1. Introduction This advanced method of measuring internal and external threads with a CMM, stylus contact probes with single or double ball, and special computer software. Ball diameter must be based on single-sided or double-sided contact method and the measured pitch to choose. This method is therefore limited by the large diameter and pitch. Simple optical method to measure the thread, usually with a tool microscope, measured by the shadow method. The shaft of the microscope must be threaded