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为了改进外圆磨床的精度和生产力,必须消除或则大大地减小作用在工件和夹具上的力。这种力能使工件偏移,同时绕轴心线产生波动。本文所叙述的负载补偿器是用一个数量相等方向相反的力来抵消作用在工件上的力。实验表明:例如一个直径为24.5毫米,长255毫米的工件,固定在顶针之问,在工件中点加载30公斤,用抵消外负载98.5％的办法,偏移从34微米降低至0.3微米。实际上系统的名义刚度从0.9公斤/微米增加到100公斤/微米。可以发现,负载补偿器在磨削试验中是很有效的。
In order to improve the accuracy and productivity of a cylindrical grinder, the forces acting on the workpiece and the fixture must be eliminated or greatly reduced. This force can shift the workpiece, while fluctuating around the axis. The load compensator described in this article counteracts the forces acting on the workpiece by an equal amount of force in opposite directions. Experiments have shown that, for example, a 24.5 mm diameter and 255 mm long workpiece, fixed to the thimble, is loaded with 30 kg at the midpoint of the workpiece and offsets from 34 to 0.3 μm offset by 98.5% of the external load. In fact the nominal stiffness of the system is increased from 0.9 kg / m to 100 kg / m. It can be found that the load compensator is very effective in the grinding test.