A tooling device for finish turning a pump hub of a hydraulic torque converter
By using an internally expanding conical elastic clamping device, the problem of easy vibration and clamping deformation of the hydraulic torque converter pump wheel bushing during processing was solved, achieving stable clamping and high-precision processing. This ensures that the inner hole roundness and coaxiality of the bushing reach grade 7 accuracy, and the dimensional tolerance grade is grade 6.
Patent Information
- Application Number
- CN202522114350.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-30
- Publication Date
- 2026-09-11
- Estimated Expiration
- 2035-09-30
AI Technical Summary
In the existing technology, the pump wheel bushing of the hydraulic torque converter is prone to vibration during processing, deformation during clamping, and surface scratches, making it difficult to ensure that the inner hole roundness and coaxiality of the bushing meet the requirements of grade 7 accuracy and grade 6 dimensional tolerance.
The internal expansion type conical elastic clamping device includes a connecting plate, a tapered seat, a pull sleeve, a slide, an elastic chuck and a base. Stable clamping is achieved through threaded connection and tapered surface fit, preventing surface scratches.
It exhibits minimal clamping deformation, stable quality, and effectively prevents scratches on the clamped surface. Its simple structure and convenient and quick installation and use meet the precision requirements of bushing machining.