曲轴, 切点跟踪, 磨削, 恒线速度

By analyzing the deficiency of current crankshaft tangential point tracking grinding method based on two-axis, crankshaft tangential point tracking grinding method based on three-axis was proposed. The grinding wheel can move in X and Y axis direction. Their motion models were studied. The results show that this grinding method can achieve constant speed grinding. After experiments, the crankshaft pin can be machined with the cylindricity of 2μm and the surface roughness Ra of 0.4μm. And it provides an effective method to obtain high machining accuracy and surface quality of the crankshaft pin.

crankshaft, tangential point tracking, grinding, constant velocity