78年我厂自行设计和试制了一种钢球定位的等分盘,用来加工保持架模具,效果良好。 钢球是一种比较新的定位分度元件,具有很高的几何精度。把尺寸误差很小的若干钢球封闭地排列成一个圆周,就能得到误差很小的若干等分度,钢球等分盘就是根据此原理设计的(结构见下图)。下球盘和上球盘5装有数目相同(一般为所需等分数的3—5倍)而直径不等的高精度钢球。钢球分别由锥套2.4压紧。工件通过定位套6用螺 78 years I design and trial production of a ball-oriented positioning of the sub-plate, used to process cage mold, the effect is good. Steel ball is a relatively new positioning indexing element, with high geometric accuracy. The small size error of a small number of steel balls arranged in a closed circle, you can get a small error of a number of equally divided, steel ball sub-plate is designed according to this principle (see below). Under the ball and the upper plate 5 equipped with the same number (usually 3-5 times the required equal parts) and high precision steel balls of varying diameters. Ball by the sleeve 2.4 compacting. The workpiece through the positioning sleeve 6 with a screw