gear shaft

Positioning base the choice of gear shaft on the surface of the main planetary gearbox processing purchase, to a sizable extent depends on selecting locating datum structure characteristics and the primary shaft of the shaft parts upon the surface of the main location accuracy necessity is set the axis because benchmark is the ideal not only ensure that benchmark is unified, and make the locating datum and the design datum coincidence outside circle for crude benchmark additionally, on both sides of a razor-sharp hole for great benchmark concrete also take note the following points: (1) when the choice between machined surface when the position accuracy of high, greatest performed in a clamping surface area processing (2) for rough machining or when two end center holes (such as spindle cone hole) can’t be used for positioning, to improve the stiffness of the process program during workpiece processing, only cylindrical surface or cylindrical surface and one end middle hole can be used as positioning reference