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图1所示工件是由2mm厚的铝条料扭转成90°的。在扭转前已冲好两个φ4mm的孔。该工件过去是用手工扭转的,现在我们设计了一副90°条料扭转模,从而提高了生产率5～6倍,稳定了产品质量,减轻了工人的劳动强度。现将模具结构和工作情况介绍如下: 斜面凸模的断面为矩形,其长轴为扭转长度的1/3,斜面为75°,两端以圆角过渡。压块3、压料螺杆8和弹簧6组成压紧机构。导向套7是保证压料杆在工作过程中不
The workpiece shown in Figure 1 is twisted 90 ° by a 2 mm thick aluminum strip. Two holes of φ4mm have been punched before turning. The workpiece was hand-twisted in the past, and now we have designed a 90 ° twist mold, which increases productivity by 5 to 6 times, stabilizes product quality and reduces worker labor. The mold structure and working conditions are introduced as follows: The cross section of the beveled punch is rectangular with the long axis of 1/3 of the torsion length and the beveled surface of 75 °. The two ends are filleted. Briquetting 3, feeding screw 8 and spring 6 constitute a compacting mechanism. Guide sleeve 7 is to ensure that the rod does not work in the process