Among the products produced by our factory, there is a forming mold part. Due to the large batch size, processing is difficult. In particular, the shape accuracy of the hole processing is high, and it is difficult to ensure that the yield is only about 60%. The workpiece is shown in Figure 1. The technical requirements for the assembly of the upper and lower molds are as follows: 1. Since the fluid material is poured into the mold, it is required that the gap after the mold clamping is not more than 0.1 mm. 2 The mold must be flexible to open, and there must be no jam or blockage. 3 After the upper and lower mold cavity is clamped, the offset is not more than 0.5mm. In this way, the drilling of the workpiece has high precision requirements for the parallelism of the bottom surface of the mold and the verticality of the size of 58 mm. Hole machining is a key process for this workpiece.
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