A method for drawing a pattern of milling a boss on a whole spinning conical bottom part for aerospace
By restoring the center datum and establishing a stable perimeter datum on the integral spun conical bottom part, and using templates and machining methods to achieve precise scribing, the problems of boss coordinate positioning error and low scribing efficiency in large integral spun conical bottom parts are solved, thereby improving production efficiency and product quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- SICHUAN AEROSPACE LONG MARCH EQUIP MFG CO LTD
- Filing Date
- 2026-06-02
- Publication Date
- 2026-07-17
AI Technical Summary
Existing bench scribing methods are difficult to restore the central axis reference on large integral spun conical bottom parts, resulting in surface errors and edge wave deformation, leading to large coordinate positioning errors of the boss, long scribing cycle and low efficiency.
The center datum is restored by positioning the center point of the axis, and a stable perimeter datum is established by combining the machined ring contour datum line and the tape measure. The longitude line, latitude line and the boss graphic template are used to complete the accurate marking.
It improves the consistency of coordinate positioning of bosses on large curved shells and the efficiency of scribing, reduces accumulated errors, shortens scribing cycle and reduces rework risk.
Smart Images
Figure CN122401339A_ABST