这种新型分度装置的组成包括:光电选位装置、圆周定位光电对准系统、轴系结构、驱动装置和校正显微镜。分度装置的工作原理分叙如下。 1.选位原理 如图1所示的选位装置部分,由光源、选位栅(狭缝)与光电显微镜组成。其中A-A剖视参看图2。 在每个工位上都有一个选位栅(狭缝),根据 The new indexing device consists of a photoelectric pick, a circular alignment optical alignment system, a shaft structure, a drive and a calibration microscope. The working principle of indexing device is described below. 1. Selection principle As shown in Figure 1, the selection device part, from the light source, the selection of the grid (slit) and the light microscope. A-A cross-sectional view with reference to Figure 2. There is a selection grid (slit) on each station, according to