Cross structure milling PCD composite tool

A cross structure milling PCD composite tool comprises a tool body, a cutting part is arranged at the front end of the tool body, and a clamping part is arranged at the rear end of the tool body. The cutting part comprises two pairs of chip discharging grooves which are arranged in a crossed mode in the axial direction, PCD blades are fixed in the chip discharging grooves, a main cooling liquid hole is formed in the tool body, inner cooling holes are formed in the chip discharging grooves, and the inner cooling holes communicate with the main cooling liquid hole. According to the cross structure milling PCD composite tool, holes and the front and back faces of the holes can be machined at a time, special tools for machining the holes are omitted, the number and cost of the tools are reduced, and the machining efficiency is improved. 一种交叉结构铣削PCD复合刀具，包括刀体，刀体前端设有切削部，后端设有加持部，切削部包括两对沿轴向交叉排列的排屑槽，排屑槽内固定有PCD刀片，刀体内设置有主冷却液孔，排屑槽内设置有内冷孔，内冷孔与主冷却液孔连通。本发明产品一次性可以加工孔以及孔的正反两面，省去了加工孔的专用刀具，节省刀具数量与成本，提高了加工效率。