Diesel engine exhaust emission aluminum component aerodynamic centering tool
By using a multi-point fixing method driven by pneumatic chucks and hydraulic cylinders, the positioning problem of the machining fixture for aluminum components of diesel engine exhaust gas was solved, achieving precise positioning and stable machining, avoiding part deformation and vibration, and improving machining quality.
CN224476102UActive Publication Date: 2026-07-10GUANGLONG PRECISION IND FUZHOU
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Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GUANGLONG PRECISION IND FUZHOU
- Filing Date
- 2025-08-14
- Publication Date
- 2026-07-10
AI Technical Summary
Technical Problem
Existing machining fixtures for aluminum exhaust components of diesel engines are difficult to position effectively, leading to part deformation and unstable machining.
Method used
The pneumatic chuck and multiple hydraulic cylinders work together to achieve centering by ejecting the top block through the pneumatic chuck, and use the hydraulic cylinders to drive the pressure plate to fix the workpiece, ensuring stability during the processing.
Benefits of technology
It achieves precise positioning and stable processing of aluminum components for exhaust emissions, avoiding part deformation and vibration, and improving processing quality.
✦ Generated by Eureka AI based on patent content.
Smart Images

Figure CN224476102U_ABST
Abstract
This utility model relates to a pneumatic centering fixture for diesel engine exhaust aluminum components, comprising a base, an annular positioning seat on the base, at least three radial channels spaced circumferentially on the sidewall of the annular positioning seat, a top block slidably connected within the radial channels, and a pneumatic chuck mounted on the inner ring of the annular positioning seat. The jaws of the pneumatic chuck correspond to the top block and are used to push the inner end of the top block outward so that the outer end of the top block abuts against the inner cavity sidewall of the workpiece. This machining fixture facilitates the centering and positioning of the exhaust aluminum component blank.
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