一种可转位钻削刀片
By adding a transition arc and a variable rake angle structure to the indexable drilling insert, the chipping problem caused by uneven stress on traditional inserts is solved, thereby improving the lifespan of the insert and the chip removal efficiency.
CN224508524UActive Publication Date: 2026-07-17HUNAN MOORE CEMENTED CARBIDE CO LTD
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HUNAN MOORE CEMENTED CARBIDE CO LTD
- Filing Date
- 2025-07-25
- Publication Date
- 2026-07-17
AI Technical Summary
Technical Problem
During the machining process, traditional drilling inserts suffer from uneven force on the cutting edge, which makes the tip prone to chipping and results in a short service life.
Method used
Design an indexable drilling insert by adding a transition arc and a variable rake angle structure to the insert to even out the stress during drilling, increase the chip groove space, and improve the structural strength of the tip.
Benefits of technology
This results in more uniform force distribution during drilling, extends the service life of the cutting tools, and improves the efficiency of chip removal.
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Smart Images
Figure CN224508524U_ABST
Abstract
本申请提供了一种可转位钻削刀片，包括刀片本体，所述刀片本体具有上表面、下表面以及用于将所述刀片本体定位并固定在刀具上的中心孔；所述刀片本体上沿所述中心孔的周向间隔设置有至少一个顶角钻削单元；每个顶角钻削单元包括：对称分布的侧面钻削刃、以及连接在两个所述顶角侧面刃之间的圆弧钻削刃；所述圆弧钻削刃具有钻削圆弧以及连接所述钻削圆弧的过渡圆弧。本申请中，通过改变刀片的刀尖位置刃口结构，从而保证刀尖位置的强度，改变前角与断屑槽结构，提高刀片的使用寿命。
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