在煤矿机械中,链轮的种类很多。在不具备专用成形刀加工条件的中、小批量生产中,采用组合夹具铣链轮链齿的吻接圆弧面对于提高工效、保证质量,效果十分显著。图1是20B型刮板输送机传动轴五星轮简图,链齿侧面是R20内圆弧与R60外圆弧的吻接面。工件在铣吻接圆弧面前先粗车外形,花键内径按工艺要求车至φ92.3~(+0.054),然后在插床上按划线粗插齿形,留1～2毫米 In coal mining machinery, there are many types of sprockets. In the absence of special forming knife processing conditions, small batch production, the use of combination fixture milling sprocket kiss arc surface to improve work efficiency, quality assurance, the effect is very significant. Figure 1 is a schematic diagram of a five-star wheel of a 20B scraper conveyor drive shaft. The sides of the sprocket are the kiss surfaces of the R20 inner arc and the R60 outer arc. Workpiece in the kiss before kiss arc rough car shape, spline diameter according to process requirements car to φ92.3 ~ (+0.054), and then in the slotted scribed coarse plug tooth shape, leaving 1 ~ 2 mm