有些工件,例如导套和导柱,它的内外圆的研磨,一般是采用心棒或圆套在车床上进行的;在研磨过程中,需要经常调整心棒的直径和圆套的内孔尺寸。由于调整次数多了,影响到生产效率的提高,又由于调整不容易掌握,也影响了研磨的质量。最近们改进成功研磨导套内圆和导柱外圆用的新式工具。这两种工具的基本原理是相同的,都是利用橡皮的弹力,使工具的工作表面同工件的被研磨表面保持一定的压力。这样不但可以获得均匀一致的压力,而且又可以节省许多调 Some workpieces, such as guide bushings and guide posts, are grinded inside and outside the circle, usually on a lathe using a mandrel or a round sleeve. During grinding, the diameter of the mandrel and the size of the inner bore of the sleeve are often adjusted. As the number of adjustments, affecting the improvement of production efficiency, but also because the adjustment is not easy to grasp, but also affected the quality of grinding. Recent improvements have been made to new tools for successfully grinding the outer circumference of guide bush and the outer circumference of the guide post. The basic principle of these two tools is the same, are the use of elastic rubber, the working surface of the tool with the workpiece to be polished surface to maintain a certain pressure. This will not only be able to achieve uniform pressure, but also save a lot of tune