The quality of the non-standard bearing shaft gear hob

Non-standard bearing shaft gear hob to identify the quality of the source: bearing | last updated: - 2020 07 - 08 non-standard bearing shaft gear hob to distinguish: the quality of gear hobbing machining precision, precision of tooth top and movement precision, stability, touch accuracy about precision. Manipulation of the common normal length and the teeth of gear hobbing machining be circle diameter to ensure the movement precision; By manipulation of the tooth profile error and base pitch error to insure stability precision; Touch with manipulation of the tooth error to ensure accuracy. The face gear hobbing machining zhongyi present analyzes several errors of reason: gear ring radial runout error, gear ring gear radial runout refers to the one turn range; Probe on the tooth or tooth groove; And the school is double sided touch; Probe the biggest change of the axis relative to the gear. Is tooth gear ring relative to the middle line of the shaft eccentricity; When the eccentricity is because the device parts; Parts of the two middle hole and work station reversal intermediate devices do not overlap or error caused by too much. Or because of top and top hole making bad; Locating surface touch owe good formation of eccentricity; So jump first gear ring diameter should be above the reason analysis. On gear hobbing machine in normal level; Usually hob accuracy; Can only work out 8 precision gear. The precision of transmission shaft gear department requirements for level 7; And top gear hobbing machining based on two middle hole and face positioning base; And analyze the gear hobbing error origin; Grasp and ensure the machining accuracy of progressive method is very important.