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众所周知,当冲料厚度小于0.3mm时,因为间隙很小,模具制造极为困难。所以,当生产批量不大时,这类冲件以采用橡胶冲模为宜。目前,橡胶冲模通过近几年的推广和应用,已引起了广泛的重视。但是,由于缺乏完整的设计资料,难免在实践中会出现这样或那样问题。本文就橡胶冲模的设计要素进行粗浅的分析和阐述。一、橡胶模冲裁的过程和原理橡胶冲模所用的橡胶通常是浇注型聚氨酯橡胶,并且是以容框将它封闭起来使用的。在压缩应变量相同的情况下,封闭的橡胶所产生的弹压力要比自由状态高十几倍。图1所示是橡胶冲模的冲裁过程。当上模下行时,
As we all know, when the thickness of the blanking material is less than 0.3mm, because the gap is very small, mold making is extremely difficult. Therefore, when the production volume is not large, such pieces of rubber stamping die is appropriate. At present, rubber stamping through the promotion and application in recent years, has attracted widespread attention. However, due to the lack of complete design information, it is inevitable that one or more problems may arise in practice. In this paper, the design elements of rubber stamping superficial analysis and elaboration. First, the process and principle of rubber die blanking The rubber used in rubber die is usually cast urethane rubber, and is to use it to close the frame together. In the case of the same amount of compressive strain, the closed rubber produces a pressure of ten times higher than the free state. Figure 1 shows the stamping process of rubber stamping. When the die down,