Camshaft gear and signal panel phase position locating pin stepping positioning device

Abstract

The invention discloses a camshaft gear and signal panel phase position locating pin stepping positioning device which comprises a plurality of sinking cone holes, a plurality of spring counterbores,positioning springs and positioning steel balls; the sinking cone holes are formed in a mounting plane at one end of a gear ring shaft mounting hole of a movable pin guide sleeve and are formed in theperiphery of the gear ring shaft mounting hole in a surrounding manner; the spring counterbores are formed in a gear ring shaft; the axes of the spring counterbores are parallel with the axis of thegear ring shaft and are uniformly formed around the axis of the gear ring shaft; the positioning springs are arranged in corresponding spring counterbores; the positioning steel balls are arranged between the positioning springs and the corresponding sinking cone holes; the positioning springs are propped against the positioning steel balls in the sinking cone holes to limit free rotation of the gear ring shaft; and when external force is applied to the gear ring shaft to rotate the gear ring shaft, the positioning steel balls overcome the spring tension to roll out of the sinking cone holes.The camshaft gear and signal panel phase position locating pin stepping positioning device can realize the stepping positioning function of a rack movable pin to ensure precision of phase position positioning of the cam shaft gear and the signal panel.

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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