过去,我们在制作图1所示汽车齿轮垫圈时,是用半圆冲子的方法进行单件镦窝。这样不仅加工十分繁琐,而且各个镦窝直径和深浅也不一致,直接影响了产品的质量。后来,笔者设计了一套球拍式镦窝工具,用钢球进行镦窝。具体方法如图2M放大图所示,镦窝时无论钢球如何转动,它的上下球面均可镦出粗糙 In the past, when we made the car gear washer shown in Figure 1, we used a semicircular punch to make a single upset. This process is not only very cumbersome, but also upsetting the diameter and depth of each inconsistency, a direct impact on product quality. Later, I designed a set of racquet upsetting tools, upsetting with steel balls. Specific methods shown in Figure 2M enlarged view, upset no matter how the steel ball rotation, the upper and lower spherical upset out of its rough