gear shaft

Positioning base the choice of gear shaft on the surface of the primary processing purchase, to a large extent depends on selecting locating datum structure features and the primary shaft of the shaft parts on the surface of the main location accuracy requirement is decided the axis because benchmark is the ideal not only make sure that benchmark is unified, and make the locating datum and the look datum coincidence outdoors circle to get crude benchmark more commonly, upon both sides of a sharp hole for good benchmark concrete also note the following factors: (1) when the choice between machined surface when the positioning accuracy of high, greatest completed in a planetary gearbox clamping surface processing (2) for rough machining or when two end center holes (such as spindle cone hole) cannot be used designed for positioning, to enhance the stiffness of the procedure system during workpiece processing, only cylindrical surface area or cylindrical surface and one end center hole can be used as positioning reference