一、问题的提出熟悉弯管工艺的人们都知道,目前使用的冷弯弯管方法是用一套弯管模具在弯管机上对管件进行弯制成形,模具各部分的配置方法如图1所示,包括弯曲模1、芯头2,夹紧模3、压力模4、夹头5、防皱板6,其中,弯曲模、夹紧模、压力模、夹头都是必需的,而防皱板和芯头则是根据管子的径壁比 W(管子外 First, the problem put forward Be familiar with the process of bending people know that the current method of using cold-formed elbow is a set of elbow pipe bending machine in the pipe bending machine, the configuration of the various parts of the mold shown in Figure 1 Including the bending die 1, the core 2, the clamping die 3, the pressure die 4, the chuck 5, the anti-wrinkle plate 6, wherein the bending die, the clamping die, the pressure die and the chuck are required, and the anti Crumpled board and the core is based on the diameter of the pipe wall W (pipe outside