这里介绍一副简易精确定位冲孔模具,它可使在弯曲成型后的工件上冲出的孔与弯腿内边的距离保持在精密公差范围之内,而且不受坯料厚度不均匀的影响。模具结构如图所示。工作原理:把已经弯曲好的工件放在凹模座上,开动压力机,滑块开始下降,冲头模块上的托架支撑面在弹簧力的作用下接触工件弯 Here is a simple and precise positioning punching die that keeps the hole punched out of the bent workpiece from the inside of the leg within precise tolerances and is not affected by the uneven thickness of the blank. Mold structure as shown. How it works: the workpiece has been bent on the die holder, start the press, the slider began to decline, punch the support bracket on the module under the action of the spring force contact with the workpiece bending