我厂在1979年购进了一台M74100立轴圆台平面磨床。该机床使用的是用8个夹紧块把8块弧形砂瓦(TL-ZR1)紧固在砂轮卡盘上,如图1所示。但这种弧形砂瓦不是我国各砂轮厂的定型产品,而需要特殊定货。因此常因购买不到而造成停产。为解决生产急需,我们对砂轮卡盘进行了如下改进。 1.采 I plant in 1979 bought a M74100 vertical shaft table surface grinder. The machine uses eight clamping blocks to the eight arc-shaped sand tile (TL-ZR1) fastened to the wheel chuck, shown in Figure 1. However, this arc-shaped sand tile is not a stereotyped product of various grinding wheel factories in our country, and requires special orders. Therefore, often due to the purchase of non-stop production. To solve the urgent need of production, we made the following improvements to the wheel chuck. 1. Mining