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车床在钻孔、攻丝、铰外螺纹时,都需要使用尾架。中小型车床,由于尾架笨重,手工驱动劳动强度很大。特别是一些专业工厂,因为经常需要移进移出尾架,尾架底板也容易磨损。我们在某些机床结构的启发下,将原有机床的尾架改装成滚轮卸荷装置,取得了较好的效果。结构见图1。在非工作状态时,尾架底板不与床身导轨面直接接触,而由分布在底板四周的四个滚动轴承与棱形导轨的非滑动水平面和平面导轨面接触,使移动时为滚动摩擦,减轻移动尾架时的劳动强度。在工作状态时,由于锁紧关系,装置内的橡皮垫
Lathe drilling, tapping, reaming external thread, you need to use the tailstock. Small and medium-sized lathe, due to heavy tailstock, hand-driven labor intensity. In particular, some professional factories, because often need to move into the tailstock, tailstock floor is also easy to wear. Inspired by some machine tools, we modified the tailstock of the original machine into a roller unloading device and achieved good results. Structure shown in Figure 1. In non-working state, the tailstock floor is not in direct contact with the bed rail surface, but by the distribution in the bottom of the four roller bearings and prismatic guide rail non-sliding horizontal plane and plane rail surface contact, so that when the rolling friction, reduce Labor intensity when moving the tailstock. In working condition, due to the locking relationship, the rubber mat inside the device