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在产品试制中,我们曾碰到了如图1所示的冲压件,当时因任务急,时间短,匆匆设计制造了一副结构简单的压延模(图2)。经试用证明,模具设计合理,使用方便,产品达到技术要求。现将其结构特点介绍如下: 简易压延模由凸模1、压边圈2、凹模3组成。凹凸模的形状与常规模具一样,但凹模外圆上有六个扣边,压边圈的外圆上也有六个扣边,凹模和压边圈的结合就类似高压锅和盖的结合。凹模扣边厚8_(-0.02)mm,工件毛坯厚1mm,压边圈扣边槽宽略大于两者之和(为9.2~(-0.05))。在压制零件时,先在凹模和压边圈的工作面上涂上润滑脂,再把工件毛坯放在凹模与压边圈间,然后
In the product trial, we have encountered the stamping parts shown in Figure 1, due to the urgent task, a short time, hastily designed and manufactured a simple structure of the calender (Figure 2). Proved by trial, mold design is reasonable, easy to use, the products meet the technical requirements. Now its structural features are introduced as follows: Simple calender mold by the punch 1, blank holder 2, die 3 composition. The shape of the concave and convex mold is the same as that of the conventional mold, but there are six buckle edges on the outer circle of the die. There are six buckle edges on the outer circle of the blank holder. The combination of the die and the blank holder is similar to the combination of the autoclave and the cover. Die edge thickness 8 _ (- 0.02) mm, workpiece blank thickness 1mm, blank holder edge buckle width slightly larger than the sum of both (9.2 ~ (-0.05)). In the suppression of parts, first in the die and the blank holder work surface coated with grease, then the workpiece blank placed between die and blank holder, and then