我厂在生产250,SM—01A1—4J(70型)摩托车前后轮总成的过程中,碰到了不少难题。例如轮毂压铸模制造返修、各类圈压紧对焊夹模。图纸设计较复杂,公差值要求在0.01～0.03mm之间,粗糙度在Ra1.6之上,模腔宽60mm,为R不规则曲面。我厂加工对焊夹模H62,中边夹模45~#等材料的产品时,是靠夹具 I plant in the production of 250, SM-01A1-4J (70 type) motorcycle front and rear wheel assembly process, met a lot of problems. For example, the hub die-casting manufacturing repair, all kinds of compression ring clamp die. Drawing design is more complex, the tolerance value required between 0.01 ~ 0.03mm, roughness above Ra1.6, the cavity width 60mm, R irregular surface. I welding processing plant welding folder H62, in the middle of the mold clamping 45 ~ # materials such as products, is by the fixture