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发明公开
CN107855577A 一种长圆孔加工刀具及采用该刀具进行长圆孔加工的方法 无效 - 驳回

一种长圆孔加工刀具及采用该刀具进行长圆孔加工的方法
摘要：
本发明公开了一种刀具结构，提供了一种结构简单，可提高切削效率，减少钻头加工时间，从而降低刀具损耗的长圆孔加工刀具及采用该刀具进行长圆孔加工的方法，解决了现有技术中存在的加工时间长，效率低，刀具损耗大，缩短了刀具的使用寿命等的技术问题，它包括刀柄及设于刀柄前端的刀座，所述刀座为同轴一体式连接在刀柄前端的长圆柱体结构，刀座前端的外环面两侧分别向内延伸形成直角定位槽，在顺时针方向的直角定位槽的侧面上固定着菱形的插孔刀片，插孔刀片的一个锐角端延伸至直角定位槽外，且两个插孔刀片的外表面共面并穿过刀座的轴芯线。
摘要（英）：

The invention discloses a tool structure, and provides an oblong hole machining tool and a method for oblong hole machining through the tool. The structure is simple, t he cutting efficiency can be improved, the drill bit machining time is shortened, and the tool losses can be reduced. The technical problems that in the prior art, the machining time is long, the efficiency is low, the tool lossesare large, and the service life of the tool is shortened are solved. The tool comprises a tool handle and a tool holder arranged at the front end of the tool handle, the tool holder is of a long cylinder structure coaxially and integrally connected to the front end of the tool handle, the two sides of the outer ring face of the front end of the tool holder extend inwards to form a right-angle positioning groove, rhombic inserting hole blades are fixed to the side face of the right-angle positioning groove in the clockwise direction, one acute angle end of each inserting hole blade extends to the position outside the right-angle positioning groove, and the outer surfaces of the two inserting hole blades share the same face and penetrate the axis line of the tool holder.

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