Stepping positioning device for camshaft gear and phase positioning pin of signal disc

Abstract

The invention discloses a stepping positioning device for a camshaft gear and a phase positioning pin of a signal disc, comprising: a plurality of countersunk holes are arranged on the installation plane at one end of the ring gear shaft installation hole of the movable pin guide sleeve, and a plurality of countersunk holes The annular ring is set around the mounting hole of the ring gear shaft; multiple spring counterbores are set on the ring gear shaft, the axes of the multiple spring counterbore holes are parallel to the axis of the ring gear shaft, and the multiple spring counterbore holes surround the ring gear shaft The axes are evenly distributed; the positioning spring is set in each spring counterbore; the positioning steel ball is set between each positioning spring and the countersunk hole; the positioning spring pushes the positioning steel ball against the countersunk hole to limit the teeth The free rotation of the ring shaft, when an external force is applied to the ring gear shaft to make it rotate, the positioning steel ball overcomes the spring tension and rolls out from the countersunk hole. The step positioning device of the present invention can realize the step positioning function of the movable pin of the rack, thereby ensuring the accuracy of the phase positioning of the camshaft gear and the signal disc.

Description

technical field [0001] The invention relates to the field of engine manufacturing, in particular to a step positioning device for a phase positioning pin of a camshaft gear and a signal disk which can ensure accurate phase positioning of the camshaft gear and a signal disk. Background technique [0002] At present, the camshaft gear and the signal plate are press-fitted (shrink-fitted) at the end of the camshaft. Generally, the camshaft is placed vertically, and the positioning pins fixed on the tooling frame are used to position the camshaft gear and the signal plate (phase positioning) , Use a press to press or manually enter the way for heat sleeve. [0003] Although the structure of the press-fitting tooling in the prior art is simple, the diameter of the positioning pin will often be changed when designing the tooling because the diameter of the positioning pin fixed on the tooling frame needs to cover all camshaft gears and signal disc products with pin hole positions....

AI Technical Summary

Problems solved by technology

[0003] Although the structure of the press-fitting tooling in the prior art is simple, the diameter of the positioning pin will often be changed when designing the tooling because the diameter of the positioning pin fixed on the tooling frame needs to cover all camshaft gears and signal disc products with pin hole positions. The result is that the consistency of the pin hole phase positioning in the process of pressing (inserting) the camshaft gear and signal plate products is poor, and the phase deviation is large.

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