论文部分内容阅读
我读了「机械工人」1956年第8期上的「弹性塑料夹具」一文后,觉得这篇文章说得很详细,夹具的结构,塑料的配制以及使用方法都作了介绍。塑料夹具是一种先进的夹具,是值得推广的。我除了同意该文所介绍的外,再补充如下几点。(一)在采用塑料夹具时,首先要计算下面的几个部分,这种计算是很简单的。1)薄壁套筒扩张量△D 的计算:我们知道,塑料夹具是靠薄壁套筒涨大来把工件夹紧的。如果套筒涨大得不够,就不能把工件夹紧,涨得太大了,套筒会
After reading the article “Flexible Plastic Clamps” of the “Mechanic Workers”, Issue 8, 1956, I found this article in great detail. The structure of the fixtures, the preparation of plastics and how to use them were introduced. Plastic fixture is an advanced fixture that is worth promoting. In addition to agreeing with the article, I will add the following points. (A) The use of plastic fixtures, the first to calculate the following sections, this calculation is very simple. 1) The calculation of the expansion of the thin-walled sleeve △ D: We know that the plastic clamp is thin-walled sleeve up to clamp the workpiece. If the sleeve is not up enough, you can not clamp the workpiece, up too much, the sleeve will