Processing tool and processing method for herringbone gear shaft of small tool withdrawal groove

Abstract

The invention provides a processing tool and a processing method for a herringbone gear shaft of a small tool withdrawal groove. The tool comprises a worktable, a semi-circular holding rack, an adjustable ejector pin and clamping jaws. The clamping jaws are uniformly distributed and fixed on the worktable, and the semi-circular holding rack is fixed to the periphery of the worktable; the adjustable ejector pin is fixed to the top surface of the semi-circular holding rack at a proper angle, so that the extension cord of the axis of the adjustable ejector pin is focused at the center of circle of an opened arc. The processing method comprises the following steps: erecting the herringbone gear shaft and clamping the herringbone gear shaft with the clamping jaws during processing; finely adjusting the clamping jaws and the adjustable ejector pin to correct the herringbone gear shaft; adjusting the angle of a knife rest and mounting a tool; carrying out reciprocal rectilinear motion of a knife box along an oblique guide rail, and rotating the worktable to process an upper side tooth of the herringbone gear shaft; adjusting the knife rest, wherein the angle is in the symmetrical direction, replacing the tool, and re-adjusting a feeding stroke of the knife box, wherein the tool is fed from the tool withdrawal groove to process a lower side tooth. The processing tool is simple in structure, easy to operate and relatively low in cost, and solves the problem of processing the herringbone gear shaft of the small tool withdrawal groove.

Description

technical field [0001] The invention relates to a processing tool and a processing method of a herringbone gear shaft with a small undercut groove, and belongs to the technical field of mechanical processing. Background technique [0002] The herringbone gear shaft is an important part of the high-speed stage in the main transmission part of the beam in the mechanical press industry. It adopts the herringbone tooth structure, which can better reduce the noise generated by the gear transmission. In order to reduce the tooth width and save cost, the relief groove designed for the herringbone gear shaft is relatively small, generally between 30 and 40mm. At present, the processing of this small undercut herringbone gear shaft is still very difficult in the field of machining technology. Due to the small relief groove, the hob cannot be withdrawn when machining the gear, so it cannot be processed by a gear hobbing machine; and because the shaft has a helix angle (generally betw...

AI Technical Summary

Problems solved by technology

However, the equipment is expensive, and ordinary enterprises do not have the ability to purchase it, and the cost of entrusting outsourcing processing is also high.

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