在刨床上用普通弯刨刀加工车床床身的下托面(见图1)时,常常因退刀或抬刀不及时而发生折断刀具的事故。为了解决这个问题,我们革新了一个自动抬刀工具。使用以来,不仅收到了安全抬刀的效果,而且减轻了操 When a planer is used to machine the lower support surface of a lathe bed (see Fig. 1) with an ordinary planer planer, it is often the case that a tool breakage accidentally occurs due to the retraction or lifting of the knife. In order to solve this problem, we have renovated an automatic tool for carrying knives. Since use, not only has received the effect of safety knives, but also reduce the operation