中小型农机修造厂由于没有专门的测量工具,铣削轴键槽时,往往只是凭划线直观找正铣削,或移动立铣工作台使工件侧面与立铣刀顶靠,然后计算位移量(工件直径×(1/2))摇进铣削。这两种方法都不太理想,常因直观误差或机床工作台进出空程,产生水平位移,立铣刀中心偏离工件轴中心,使键槽中心线与工件中心线不重合,降低了加工精度,甚至导致一些要求较高的传动轴报废。为此,我们设计了一种键槽中心找正仪。 Small and medium-sized farm machinery repair shop because there is no special measuring tools, milling shaft keyway, often just by scribing to find positive milling, or move the vertical milling table so that the side of the workpiece and end mill against, and then calculate the displacement (workpiece diameter × (1/2)) Shaking milling. These two methods are not ideal, often due to visual error or machine table into and out of space, resulting in horizontal displacement, end mill center deviate from the workpiece axis, so that the keyway centerline and the workpiece centerline do not coincide, reducing the machining accuracy, Even lead to some of the more demanding drive shaft scrapped. For this reason, we designed a keyway centering device.