修理车床时常需研磨尾座顶针套孔。这一工序通常用铸铁研具手工研磨,费的时间很多。如图所示的机械研磨机构可以提高劳动生产率到三倍。 机构有一由本体1与盖2　在一起的箱体。轴3穿过箱体,其上套有幸齿轮4。轴3放在轴承6和7中,轴承用螺钉8固定到本体上。轴在本体内不能左右移 Repair lathes often need to grind the tail seat thimble sleeve hole. This process is usually manual grinding with cast iron research tools, the time spent a lot of time. The mechanical grinding mechanism shown in the figure can increase labor productivity by a factor of three. The mechanism has a body which is composed of a body 1 and a cover 2. The shaft 3 passes through the box, on which the lucky wheel 4 is sheathed. The shaft 3 is placed in the bearings 6 and 7, and the bearing is fixed to the body with screws 8. Shaft in the body can not move left and right