为了磨削深度达300毫米的内孔,我们对M131W万能磨床的内圆磨具进行了改装,经多年使用,加工潜孔钻机冲击器缸体内孔,效果很好。加长后的内圆磨具如图所示,将原内圆磨具的接长轴与主轴合成一体制作并加长,主轴接长轴端接长300毫米,接长部位呈圆锥形,轴承部位将跨度加大40毫米,对外套、内衬套等其它零件也相应地加长,修改其它结构、组装技术要求不变。 In order to grind the inner hole with a depth of 300mm, we modified the inner circular grinding wheel of the M131W universal grinder, and worked well for many years to process the inner hole of the downhole drilling machine impactor cylinder, and the effect is very good. After the lengthening of the inner circular abrasive as shown in the figure, the original inner circular abrasive joint shaft and the main shaft made of integrated production and lengthening, the main shaft connecting long 300 mm long, then the long conical parts, bearing parts will be Increase the span of 40 mm, jacket, liner and other parts are also lengthened accordingly, modify other structures, assembly technology requirements remain unchanged.