




⑴设计的冲压件必须满足产品使用和技术性能,并能便于组装及修配。
⑵设计的冲压件必须有利于提高金属材料的利用率,减少材料的品种和规格,尽可能降低材料的消耗。在允许的情况下采用价格低廉的材料,尽可能使零件做到无废料及少废料冲裁。
⑶设计的冲压件必须形状简单,结构合理,以有利于简化模具结构、简化工序数量,即用***少、***简单的冲压工序完成整个零件的加工,减少再用其他方法加工,并有利于冲压操作,便于***实现机械化与自动化生产,以高劳动生产率。
增设强压功能。即对卸料镶块压料部加厚尺寸(正常的卸料镶块厚H 0.03mm),以增加对凹模侧材料的压力,从而***冲切时冲压件产生翻料、扭曲变形。
Additional pressure function. In order to increase the pressure on the material of the die side, the pressure of the material in the die side is increased by the thickness of the material of the unloaded insert (normal unloaded insert thickness H 0.03mm), so as to suppress the turning and distortion of the stamping parts.
凸模刃口端部修出斜面或弧形。这是减缓冲裁力的有效方法。减缓冲裁力,即可减轻对凹模侧材料的拉伸力,从而达到***冲压件产生翻料、扭曲的效果。
The end of the punch is repaired with a bevel or arc. This an effective way to slow down the blanking force. By reducing the force of buffer, the tensile force of the side material of the die can be reduced, so that the stamping and twisting effect can be suppressed.