论文部分内容阅读
在批量生产中,套类零件的外圆与端面对内孔均有跳动要求,并多采用分散工序进行精加工,例如先精车工件内孔,再以此孔定位精加工外圆及端面。如图1,工件内孔如用圆柱心轴定位,其最大的振摆量为:ε=δ工+δ夹+△+ε机其中:δ工——工件定位孔误差;δ夹——心轴加工误差;△——最小配合间隙:ε机——机床的振摆量。这些累积误差,即产生工件径向跳动的原
In mass production, sets of parts of the outer circle and the end face of the inner hole have beating requirements, and more use of decentralized processes for finishing, such as finishing the first hole in the workpiece, and then positioning the hole with this hole finishing and the end surface . As shown in Figure 1, the workpiece as the hole with a cylindrical mandrel positioning, the maximum amount of pendulum is: ε = δ work + δ folder + △ + ε machine where: δ work - workpiece positioning hole error; Axis machining error; △ - Minimum fit clearance: ε machine - machine tool vibration amount. These cumulative errors, that is, the original workpiece radial runout