一种可自动旋转刀片球刀刀片
By designing an automatically rotating spherical blade and an adjustable length structure, the problems of uneven edge damage and inconvenient adjustment of traditional ball cutter blades have been solved, thereby improving the blade's service life and machining accuracy.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHINLONE INTELLIGENT MFG PRECISION APPL MATERIAL SUZHOU CO LTD
- Filing Date
- 2025-08-01
- Publication Date
- 2026-07-17
AI Technical Summary
Traditional ball end mills have fixed and non-rotating blades, resulting in uneven damage to the cutting edge, short service life, and the inability to adjust the blade length according to the workpiece size, leading to inconvenience and low precision.
Design an automatically rotating spherical blade. The blade rotates during machining through the cooperation of a full-edge blade and a positioning screw. The blade length can be extended and fixed by adjusting the sliding tool holder and the connecting rod.
This resulted in uniform wear on the blade edge, extended service life, and improved tool usability and machining accuracy.
Smart Images

Figure CN224508535U_ABST
Abstract
Claims
1. A self-rotatable ball knife blade comprising a fixed blade bar (1), characterized in that: One end of the fixed tool bar (1) is provided with a sliding tool bar (2). The end of the sliding tool bar (2) away from the fixed tool bar (1) is respectively equipped with a full-cutting blade (3) and a positioning screw (4). The center of the full-cutting blade (3) has a blade positioning hole (5). The center of the full-cutting blade (3) is inserted through the blade positioning hole (5) and the positioning screw (4). One end of the positioning screw (4) has a threaded section (6) that is threadedly connected to the sliding tool bar (2).
2. The self-rotating blade ball knife blade of claim 1, wherein: The fixed tool bar (1) is internally slidably connected to a connecting rod (7) welded to the sliding tool bar (2). A limiting groove (8) is provided on the top of the connecting rod (7). A fastening bolt (9) that is engaged with the limiting groove (8) is threaded through the top of the fixed tool bar (1) near the sliding tool bar (2).
3. The self-rotating blade ball knife blade of claim 1, wherein: The positioning screw (4) has a screw bevel (10) welded to the end away from the threaded section (6) and engaging with the sliding tool bar (2).
4. The self-rotating blade ball knife blade of claim 3, wherein: The screw bevel (10) has a screw recess (11) on the side away from the positioning screw (4).
5. The self-rotating blade ball knife blade of claim 2, wherein: The connecting rod (7) has a scale (12) marked on one side of its surface, which is used in conjunction with the sliding tool bar (2).