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在机械制造、机床传动和汽车后桥差速系统中,直齿圆锥齿轮,由于能传递相交轴之间的扭矩而获得了广泛的应用。但是,由于直齿圆锥齿轮的齿廓曲线是球面渐开线,其形状复杂不能展成平面,所以给设计、制造和测量都带来了很大的困难。随着社会主义建设事业的日益发展,粉末冶金、精密锻造、锥齿磨削等新工艺新技术的大量采用,对直齿圆锥齿轮的精度和互换性都提出了更高的要求。生产上迫切需要对直齿圆锥齿轮的各个单项精度进行测量。由于目前锥齿轮的测试设备较少,很难满足生产上的需要,所以我们对用万能显微镜测
In mechanical manufacturing, machine tool transmission and rear axle differential systems, spur bevel gears are widely used due to their ability to transmit torque between intersecting shafts. However, since the tooth profile curve of the spur bevel gear is a spherical involute, its complicated shape can not be flattened, which brings great difficulties in the design, manufacture and measurement. With the continuous development of socialist construction, the extensive adoption of new technologies such as powder metallurgy, precision forging and bevel gear grinding have raised higher requirements on the accuracy and interchangeability of spur bevel gears. There is an urgent need to measure the individual accuracy of spur bevel gears in production. Due to the current bevel gear test equipment less difficult to meet the needs of production, so we use universal microscope