Gear box spline shaft of Changjiang

　    Using rolling machine of the knurling process. Previously using the knurled wheel for the German brand, company management layer implementation of localization, in the country to find a more rolling wheel manufacturer, the rolling round flower tooth and few teeth in the rolling process, and tooth profile precision is not enough.
Rothschild volunteered, willing to bear the knurl wheel design, through the workpiece drawings review of the drawings, and other brand rolled round flower analysis, think other brands of the knurling tooth of large cumulative error, which is main cause of tooth and tooth; the workpiece tooth bottom circle arc small, rolling wire arc grinding wheel irregular, not forming grinding arc, but subsequent processing of arc, rolling wire wheel and the workpiece tooth shape is not meshing relationship.
Through the above analysis, we think that fewer teeth is the case, because the knurled wheel grinder manufacturers may use worm indexing, indexing error, pitch error and no way to eliminate P, is the main cause of much fewer teeth; tooth profile error is due to knurled wheel manufacturers dressing process does not pass there is no way to do, or not do circular arc, small, high gear will be heightened, and postprocessing caused by arc, arc contour is not enough, can not control the postprocessing of circular arc tooth height, cause tooth height is higher than the design of tooth height, knurling relationship between the wheel and the workpiece is not gear, causing damage to the tooth side in diameter, tooth thickness, tooth shape accuracy is not caused by these factors.
Find the core of the problem, solve it becomes easy, Rothschild has high precision grinder, first-class grinding wheel dressing technology, optimization design concept, making roll flower round a sample qualified, through the stability test of a period of time, life is more than German knurling (German roll round flower according to European design material being machined, the domestic is processing material sometimes not so good, according to the customers of knurling wheel material and design is important).
(Rothschild technical articles are original, if need to reprint please indicate the source.)