零件WH3外壳(图1)原制造工艺需五道工序(五副模县)冲制完成,现已改进为三道工序(三副模具)冲制而成。改进后的工艺顺序为:工序1,切废、弯曲、落料级进模;工序2:弯圆结扣模;工序3:切翘角模。本文只着重介绍工序2弯圆结扣模。 一、制件的行程分配 该模具在一次往复行程中,完成定位 Parts WH3 shell (Figure 1) The original manufacturing process to be five processes (five deputy model counties) Chong completed, has been improved for the three processes (three molds) made of red. Improved process sequence: Step 1, cut waste, bending, blanking progressive die; Step 2: round knot buckle mold; Step 3: Cut the angle model. This article focuses only on the process 2 bending round knot die. First, the distribution of parts trip The mold in a reciprocating trip to complete the positioning