Synchronizer gear hub groove milling positioning tool and positioning method

Abstract

The invention relates to a synchronizer gear hub groove milling positioning tool and positioning method. The synchronizer gear hub groove milling positioning tool comprises a horizontally-arranged bottom plate, a vertical plate is fixedly arranged on the bottom plate, a sliding block horizontally penetrating through the vertical plate is arranged on the vertical plate in a sliding mode, and a detection head is fixedly arranged at the front end of the sliding block. The front end of the detection head is provided with teeth which can only be engaged with all short teeth between two adjacent high teeth on a synchronizer gear hub to be positioned at the same time. The synchronizer gear hub groove milling positioning tool further comprises a plug block. The thickness of the plug block is equal to the distance between the axis of the synchronizer gear hub to be positioned and the front side of the vertical plate minus the distance between the axis of the synchronizer gear hub to be positioned and the rear end of the detection head when all the teeth on the detection head are meshed with the short teeth on the synchronizer gear hub to be positioned. According to the tool, small sizes which are difficult to distinguish are amplified, and the plug block can be inserted to judge and distinguish, so that the synchronizer gear hub can be simply, intuitively, quickly and efficiently positioned. Correspondingly, the invention further discloses a synchronizer gear hub groove milling positioning method.

Description

technical field [0001] The invention relates to the technical field of synchronizers, in particular to a gear hub milling and positioning tool for a synchronizer and a positioning method. Background technique [0002] Synchronizers are an essential part of a manual shift car. The synchronizer hub plays an important role in the synchronizer, the structure is as follows figure 1 shown. There are two kinds of teeth arranged at intervals on the outer peripheral surface of the synchronizer gear hub, one is the small-diameter low tooth of the external spline (hereinafter referred to as the low tooth), and the other is the small-diameter high tooth of the external spline (hereinafter referred to as the high tooth), and the short tooth and The high teeth are staggered and spaced apart from each other, and the short teeth distributed between any two adjacent high teeth are the same. The base circle diameter of the tall teeth is larger than the base circle diameter of the short tee...

AI Technical Summary

Problems solved by technology

However, the difference between the bottom circle diameters of high teeth and short teeth is small, so it is difficult to directly observe

Clamping on a milling machine needs to adjust the position of the part to complete the tool setting. However, it is difficult to distinguish high and low teeth with the naked eye in actual processing, and the tool setting is very difficult.

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