A rear-drive 8at hydraulic torque converter shell mounting tool

CN224373333UActive Publication Date: 2026-06-19HARBIN DONGAN AUTOMOTIVE ENGINE MFG CO LTD +1

Patent Information

Authority / Receiving Office: CN · China
Patent Type: Utility models(China)
Current Assignee / Owner: HARBIN DONGAN AUTOMOTIVE ENGINE MFG CO LTD
Filing Date: 2025-06-06
Publication Date: 2026-06-19

AI Technical Summary

Technical Problem

During the air tightness testing of the rear-drive 8AT assembly, frequent air leakage accidents occurred in the torque converter housing, and the front housing sealing ring often showed damage and breakage, resulting in long repair time and increased costs and safety risks.

Method used

Design a mounting fixture for the housing of a rear-drive 8AT hydraulic torque converter. The fixture uses a pneumatic trigger, base, lifting assembly, connecting block, pressure plate and lead screw structure to ensure uniform force during assembly and avoid damage to the sealing ring.

Benefits of technology

It improved assembly quality and efficiency, reduced rework costs and safety risks, ensured the airtightness of the whole machine, reduced rework and workpiece consumption, and improved production speed and safety.

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Abstract

This utility model provides a mounting fixture for the housing of a rear-wheel drive 8AT hydraulic torque converter, belonging to the field of automotive manufacturing technology. The fixture has a simple and compact structure, provides uniform force application during assembly, and achieves good assembly results. The fixture features a fixed, suspended base, a sliding lifting assembly inserted into the base, a vertically rotating lead screw mounted on the base, with both ends of the lead screw extending out of the base and rotatably connected to the upper and lower ends of the lifting assembly, respectively, and a pneumatic trigger suspended above the lifting assembly. The drive end of the pneumatic trigger is connected to the lead screw, and the operation of the pneumatic trigger drives the lead screw to rotate, thus moving the lifting assembly up and down. A pressure plate is horizontally fixed and suspended at the bottom of the lifting assembly. This fixture has a compact layout, is suspended without altering the existing production line, provides uniform force application, ensures even stress distribution during housing assembly, avoids damage to components, reduces production costs, and improves assembly efficiency while saving time.

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