Positioning device and method for clamping the output shaft of an automotive transmission using the device

CN118682515BActive Publication Date: 2026-05-26ZHIXIN TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
ZHIXIN TECH CO LTD
Filing Date
2024-05-31
Publication Date
2026-05-26

AI Technical Summary

Technical Problem

During the clamping process of the output shaft 2 of the automotive transmission, existing technology has difficulty in effectively limiting the rotation and positional displacement of the reverse gear ratchet, resulting in unstable clamping and affecting the automatic tightening of bolts and the assembly qualification rate.

Method used

A positioning device is designed, including a mounting bracket, a power unit, and a positioning block. The power unit controls the position of the reverse gear ratchet, and the positioning block, in cooperation with the gear groove, restricts the rotation of the reverse gear ratchet, ensuring that the output shaft is clamped in a fixed position and follows the slight wobbling of the reverse gear ratchet during the tightening process.

Benefits of technology

Stable clamping of output shaft two was achieved, avoiding frequent alarms from the electric wrench, improving the assembly qualification rate, and ensuring the automatic tightening effect of bolts.

✦ Generated by Eureka AI based on patent content.

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Abstract

This invention discloses a positioning device and a method for clamping a second output shaft of an automotive transmission using the device. The device includes a mounting bracket, which comprises a mounting portion connected to a tray and a vertical portion. The top of the tray has an inner hole for accommodating the second output shaft of the vehicle transmission. The second output shaft has a reverse gear ratchet with a gear groove. A power device is installed inside the tray, driving the second output shaft to move up and down. The vertical portion is a sleeve, and a vertically movable shaft can move up and down along the sleeve. The top end of the vertically movable shaft is connected to one end of a horizontal positioning block support arm, and the other end of the positioning block support arm is connected to a positioning block. When the second output shaft moves downward, if the positioning block falls into the gear groove, the positioning block restricts the rotation of the reverse gear ratchet. This invention prevents the reverse gear ratchet from rotating significantly by using the positioning block, thereby ensuring that the clamping position of the second shaft is relatively fixed. This further facilitates clamping the second output shaft using a clamping device on a machine tool, ensuring that the axis of the second shaft is coaxial with the inner hole at the top of the tray after clamping.
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