设计主要从以下两个方面影响冲压模具的使用寿命 |
添加时间:2019/1/25 15:50:13 浏览次数: |
The design mainly affects the service life of stamping die from the following two aspects. (1)模具的导向机构精度。准确和可靠的导向,对于减少模具工作零件的磨损,避免凸、凹模啃伤影响极大,尤其是无间隙和小间隙冲裁模、复合模和多工位级进模则更为有效。为提高模具寿命,设计时必须根据工序性质和零件精度等要求,正确选择导向形式和确定导向机构的精度。 (1) The precision of the guide mechanism of the die. Accurate and reliable guidance has great influence on reducing the wear of die parts and avoiding the gnawing of convex and concave dies, especially for blanking dies without clearance and small clearance, compound dies and multi-position progressive dies. In order to improve the service life of the die, it is necessary to select the correct guiding form and determine the precision of the guiding mechanism according to the requirements of the process nature and the precision of the parts.fangyanban.75ix.com gougaiban.75ix.com buxiugang.75ix.com boligangds.75ix.com katong.75ix.com jinshu.75ix.com (2)模具(凸、凹模)刃口几何参数。凸、凹模的形状、配合间隙和圆角半径不仅对冲压件成形有较大的影响,而且对于模具的磨损及寿命也影响很大。如模具的配合间隙直接影响冲裁件质量和模具寿命。精度要求较高的,设计中就宜选较小的间隙值;反之则可适当加大间隙,以提高模具寿命。 (2) Geometric parameters of die edge (convex and concave die). The shape, fit clearance and fillet radius of convex and concave dies not only have a great influence on the forming of stamping parts, but also on the wear and life of dies. For example, the fit clearance of the die directly affects the quality of the blanking parts and the life of the die. In order to improve the service life of the die, the smaller clearance value should be chosen in the design if the precision is high. |
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