A milling tool for a rocket engine bumper and a method of use
By designing milling fixtures and machining methods for rocket engine buffers, the deformation problem in milling holes of liquid rocket engine buffers was solved, enabling rapid clamping and efficient machining, and ensuring the accuracy and quality of the holes.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- XIAN SPACE ENGINE CO LTD
- Filing Date
- 2026-04-29
- Publication Date
- 2026-07-03
AI Technical Summary
In the existing technology, the milling of buffers for liquid rocket engines suffers from problems such as dimensional deviations due to deformation, high scrap rates, and low processing efficiency.
A milling fixture for rocket engine buffers is adopted, including a fixture body, a tightening ring, a tightening wrench, and a tightening screw. This fixture enables rapid clamping and milling of the buffer. Roughing and finishing are performed using a five-axis machining center to avoid deformation and ensure the positional accuracy and sharp edge requirements of the holes.
It improves processing efficiency, reduces product deformation and rework, ensures the roundness and positional accuracy of holes, meets the requirements for sharp edges of hole openings, and reduces product scrap rate.
Smart Images

Figure CN122322909A_ABST