Shaving clamp used for gear of synchronizer

Abstract

The invention provides a shaving clamp used for a gear of a synchronizer, which is capable of clamping a gear stably. The clamp comprises a mandrel, wherein the mandrel is a two-step mandrel provided with a small-diameter shaft section, a middle-diameter shaft section and a large-diameter shaft section, a first central locating hole is axially arranged in the small-diameter shaft section of the mandrel, the inner circle of a locating sleeve sleeves the small-diameter shaft section and the middle-diameter shaft section of the mandrel, the end side of the locating sleeve clings to one side of the large-diameter shaft section of the mandrel, the outer circle of the large-diameter shaft section of the mandrel and the inner circle of the gear are matched as a locating part of the gear, a frustum is arranged on the other side of the large-diameter shaft section of the mandrel, the central line of the frustum and the axis of the mandrel are positioned on the same straight line, the shaving clamp further comprises an expansion sleeve, a taper hole of the expansion sleeve is arranged in one end of an inner hole of the expansion sleeve, a frustum hole matched with the frustum is arranged in the other end of the inner hole of the expansion sleeve, a clamping sleeve sleeves the expansion sleeve, a chuck is arranged on one end, which is close to the big diameter shaft section of the mandrel, of the clamping sleeve, a second central locating hole is arranged in one end, which is far away from the big diameter shaft section of the mandrel, of the clamping sleeve, and the second central locating hole is opposite to the taper hole of the expansion sleeve.

Description

technical field [0001] The invention relates to a lock, in particular to a shaving jig for a synchronizer gear. Background technique [0002] The synchronizer is an important part of the car. Its function is to synchronize the gears at the power output end with different speeds and the gears to be shifted into when shifting gears, so as to prevent the two gears with different speeds from directly meshing and causing damage to the teeth. Synchronizers generally include a spline hub, an adapter sleeve that engages with the outer spline of the spline hub, and two lock rings arranged on both sides of the spline hub. The spline hub is actually a gear structure. During the gear processing process, In order to improve the machining accuracy of the tooth surface, it is necessary to shave the gear after hobbing and leading the edge. The principle of shaving is: the shaving cutter intersects the axial space of the gear to be cut at an angle, and their meshing is a free-spanni...

AI Technical Summary

Problems solved by technology

The above-mentioned fixture has the following problems: Generally, in order to facilitate disassembly, clearance fit is used between the inner circle of the ferrule and the outer circle of the mandrel. In this way, when the gear is clamped, the ferrule is prone to axial and radial shaking, which makes the gear The clamping is not stable, which affects the processing quality of the gear

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