Gear shifting mechanism and manufacturing method thereof

Abstract

The invention provides a gear shifting mechanism which can effectively ensure the alignment property of gear display, and a manufacturing method thereof. The gear shifting mechanism comprises a base, and a gear support, a gear selecting arm and an operating lever which are arranged on the base, and the operating lever is connected with the gear selecting arm to control the gear. The key point is as follows: the operating lever is equipped with a step which protrudes from an operating lever body; and a handle assembly is arranged on the operating lever in a thread fit manner, and a bottom end of the handle assembly abuts against a top end of the step. In the invention, the depth of the handle assembly screwed in the operating lever is limited by the step so as to limit rotation cycles of the handle assembly, so that the gear display which is shaped like a Chinese character 'Wang' on the handle can be aligned, thus the interior of the handle and threads on the operating lever cannot be damaged by excessive operating force in the case of manual operation, and installation quality and durability of the gear shifting mechanism are ensured. The gear shifting mechanism has the advantage that the operating lever is more accurately matched with the handle assembly by means of the step arranged on the operating lever, thus improving the alignment property of the gear display.

Description

technical field [0001] The invention belongs to the field of automobile parts manufacturing, and in particular relates to a shift mechanism of an automobile and a manufacturing method thereof. Background technique [0002] There are two types of cooperation between the joystick and the handle assembly of the traditional automobile manual shift mechanism: the plug-in type and the threaded connection type. The plug-in type can effectively ensure the alignment of the gear position display, but it is only suitable for the handle and the shifting mechanism. The shifting mechanism with a sufficiently large diameter of the mating part of the rod has a high cost, so it is not widely used; the threaded connection technology is relatively mature at present, and the cost is low, but it has a disadvantage: when the joystick and the handle are assembled, The alignment of the gear position display is adjusted manually through the observation of the workers. The alignment is closely relate...

AI Technical Summary

Problems solved by technology

[0002] There are two types of cooperation between the joystick and the handle assembly of the traditional automobile manual shift mechanism: the plug-in type and the threaded connection type. The plug-in type can effectively ensure the alignment of the gear position display, but it is only suitable for the handle and the shifting mechanism. The shifting mechanism with a sufficiently large diameter of the mating part of the rod has a high cost, so it is not widely used; the threaded connection technology is relatively mature at present, and the cost is low, but it has a disadvantage: when the joystick and the handle are assembled, The alignment of the gear position display is adjusted manually through the observation of the workers. The alignment is closely related to the proficiency of the worker's operation, which is very subjective, and the alignment quality is not easy to guarantee; During the assembly process, sometimes the worker’s operating force is too large, and the rotation angle of the handle exceeds the design angle, so that the gear display of the handle deviates from the alignment position, causing the internal structure of the handle to be damaged by the thread or self-tapping section of the joystick. If the position display is aligned, the worker can only turn the handle back to the opposite direction of the previous assembly direction to align the gear position display. This will loosen the connection between the handle and the joystick, so that when the user repeatedly shifts gears in the future, the handle will be lost. The gear display is prone to gear misalignment

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