The invention relates to a gear shaping clamp of an internal spline shaft. The gear shaping clamp comprises a base, a tightening sleeve and eccentric wheels; a big-end-up conical hole matched with the tightening sleeve is vertically formed in the middle of the upper end face of the base, and the lower end hole of the conical hole is axially connected to a round through hole with the same radius; the tightening sleeve is installed in the conical hole, and the upper end of the tightening sleeve is fixed to a supporting plate arranged above the base through a fixing plate; and the two eccentric wheels are installed at the parts, located below the supporting plate, of the two sides of the base in a rotating mode and support the lower end face of the supporting plate, a connecting rod is connected to the side wall of each eccentric wheel, and the two connecting rods are connected through a handle. According to the gear shaping clamp, the internal spline shaft is clamped by the tightening sleeve and is self-centered at the outer diameter part of an internal spline, work-pieces can be taken out by pressing down the handle after gear shaping is completed, the process that workers need to loosen or tighten the work-pieces hard through a three-jaw key can be eliminated, the hidden quality and safety danger caused by intervals of a three-jaw chuck can be avoided, the work efficiency can be improved, and the labor intensity can be lowered.

Gear shaping clamp of internal spline shaft

A machining jig holds a workpiece with respect to a tool that partially removes an outer peripheral surface of the workpiece. The machining jig includes a first jig including an inner peripheral surface having a shape similar to a contour of the workpiece and an outer peripheral surface including a first inclined section inclined with respect to an axial direction of the workpiece; a second jig including an inner peripheral surface including a second inclined section configured to be fitted to the first inclined section; a base to which the second jig is coaxially fixed; and a sliding mechanism that enables a large-diameter portion of the first inclined section and a small-diameter portion of the second inclined section to move toward and away from each other. The sliding mechanism of the machining jig causes the small-diameter portion of the second inclined section to press the large-diameter portion of the first inclined section so that compressive stress is applied to the outer peripheral surface of the workpiece at a position near a portion to be removed by the tool.

Machining jig and machining method

The invention provides a gear shaping tooling, which is capable of positioning and clamping a workpiece on the condition without a tailstock center so as to guarantee machining precision. The gear shaping tooling comprises a body connected with a workbench, a connecting sleeve with an inner taper hole is connected to the body, and a clamp ring used for clamping the workpiece is arranged inside the connecting sleeve and provided with an outer tapered face corresponding to the inner taper hole. The gear shaping tooling further comprises a pushing unit which is arranged on the connecting sleeve and used for pushing the clamp ring to move axially.

Yiping Ji

Papers

Gear shaping tooling