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夹线插销(见图1)是我厂生产的某零件,其形状特点可算作是环形封闭件,此产品批量不大,要求模具简单实用即可。1.工艺分析产品的成形工艺制造可分为三种方案:①两次成形,先打弯成环形,再弯30°角。此方案优点是两次成形模具均较简单,但缺点是工序冗长。且由于零件较小巧,使模具成形主要零件小而易损,需要更换的频率很高。②一次成形,此方案
The clamp bolt (see Figure 1) is a part produced by our factory. Its shape and shape can be regarded as a ring-shaped closing piece. The product is small in volume and requires the mold to be simple and practical. 1. Process Analysis Products forming process can be divided into three programs: ① twice forming, first hit into a ring bend, and then bend 30 ° angle. This program has the advantage of forming the mold twice are relatively simple, but the disadvantage is the lengthy process. And due to the smaller parts, the main parts of the mold forming a small and vulnerable, the need to replace the high frequency. ② once formed, this program