gear shaft

Positioning base the decision of gear shaft on the surface of the main processing order, to a sizable extent depends on selecting locating datum structure features and the main shaft of the shaft parts on the surface of the primary location accuracy necessity is set the axis since benchmark is the ideal not only ensure that benchmark is unified, and make the locating datum and the look datum coincidence outdoors circle pertaining to crude benchmark more commonly, upon both sides of a sharp hole for fine benchmark concrete also note the following factors: (1) when the choice between machined surface when the position accuracy of high, greatest completed in a clamping surface processing (2) for tough machining or when two end center holes (such as spindle cone hole) can’t be used pertaining to positioning, to improve the stiffness of the procedure program during workpiece processing, only cylindrical surface area or cylindrical surface area and one end middle hole can be planetary gearbox utilized as positioning reference