一种航空活塞发动机核心零部件三坐标测量用复合夹具及其使用方法
By designing the support plate, slider, and linkage clamping mechanism of the composite fixture, the problem of not being able to simultaneously and stably clamp the linkage and counterweight in the existing technology is solved, realizing efficient and accurate batch measurement in the same coordinate system, and significantly improving measurement efficiency and accuracy.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- CIVIL AVIATION FLIGHT UNIV OF CHINA
- Filing Date
- 2026-05-28
- Publication Date
- 2026-07-17
AI Technical Summary
Existing fixtures cannot simultaneously and securely hold the connecting rod and counterweight of an aero-piston engine, and cannot perform batch measurements in the same coordinate system, resulting in low measurement efficiency and poor repeatability.
A composite fixture was designed, including a support plate, a slider, and a linkage clamping mechanism. The counterweight is quickly initially positioned and axially limited by the cooperation of the extension section of the support plate and the slider. The linkage clamping mechanism achieves self-centering clamping by pressing the slider and the positioning column. The batch measurement extension structure achieves high-precision series connection of multiple fixtures with equal spacing by using positioning rods of equal length.
It improves the efficiency and accuracy of coordinate measuring machine (CMM), enables the connecting rod and counterweight to be securely clamped and measured efficiently on the same fixture, reduces the time for repeated clamping and coordinate system reconstruction, and significantly improves the efficiency of batch overhaul inspection.
Smart Images
Figure CN122401302A_ABST