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四、试2251定位机构的 定位精度分析 试2251的定位机构与H0226是完全相同的,其结构如图11所示。定位机构的精度对整个机床的精度有重要的影响,因此有必要仔细来分析。 1.双菱形定位销定位的精度分析现在使用的鼓轮部件在鼓轮某一端面上一般有两个菱形定位销,两镗模架之间距离较大的还在另一端加第三个菱形定位销。从六点定位原理来看,回转轴左右两轴承定了四个
Fourth, the positioning test 2251 Positioning accuracy analysis 2251 positioning mechanism and H0226 is exactly the same, the structure shown in Figure 11. The accuracy of the positioning mechanism has an important impact on the accuracy of the entire machine, it is necessary to analyze carefully. 1. Double diamond positioning pin positioning accuracy analysis Drum components used in the drum on one end generally have two diamond positioning pin, the distance between the two boring mold frame is still at the other end of the third diamond plus Positioning pin. From the point of view of the six-point positioning, the left and right axis of the rotating shaft set four