工厂中经常遇到精密坐标孔系的加工问题.由于一般小型工厂,尤其是轻纺、乡镇企业的机械加工车间都不具备坐标镗床或坐标磨床,所以往往采用几个零件“同加工”或“单配”等传统工艺来达到装配要求。但是这已不能适应当前正在推行的“标准化”及“通用化”所提出的更高要求。为此,这里介绍一种精密坐标孔系的简易加工工艺。图1为所要加工的模板类型工件。先制造一种辅助套如图2所示,件数与孔数相同。每件的φ20尺寸尽可能一致,(也可磨成φ20×70后切割成三件)以便于 Factories often encounter the problem of precision coordinate hole system processing.Because small factories in general, especially textile, township enterprises do not have the machining shop coordinate jig or coordinate grinder, so often use several parts “with the processing” or “ Single with ”and other traditional processes to meet the assembly requirements. But this can no longer meet the higher demands of “standardization” and “universalization” that are currently being implemented. To this end, here is a simple coordinate hole precision machining process. Figure 1 is to be processed template type workpiece. First create an auxiliary sleeve shown in Figure 2, the same number of pieces and the number of holes. Φ20 size of each piece as much as possible, (also can be ground into φ20 × 70 after cutting into three) in order to facilitate