Drill collar spiral milling machine

Drill collar spiral milling machine is the specialized cnc machine tool for milling drill collar, use three milling cutters cut the mutual 120°spiral groove of drill collar at the same time. X1, X2, X3 moving are controlled by CNC system and servo motor. With 3-jaw chuck,  self-centering, whether pipe diameter how to change, the center keeps constant. Use 6sets idler wheel support and clamp workpiece, reduced the resistance of C axis, and increased the rigidity of clamps.
For example: If cut one ∮165 drill collar, three arc slot, then the process time can be in one hour.

Items Unit LXK320HY
Cutter spindle speed range r/min 80～500
Cutting speed range r/min 80～160
Cutter diameter mm φ200
X-axis Max. Travel mm 150
Z-axis Max. Travel mm 10000
Manual chuck diameter mm φ780
Pneumatic chuck diameter mm φ730
The range of machining diameter mm φ100～φ310
Machine feeding speed ƒx≤4m/min；ƒz≤5m/min；ƒc≤3r/min
X-axis quick movement speed m/min 6
Z-axis quick movement speed m/min 6
X1 radial feed speed m/min ≤4
X2 radial feed speed m/min ≤4
X3 radial feed speed m/min ≤4
Setting accuracy of position mm 0.001
X1 X2 X3 motor torque Nm 20
C-axis motor torque Nm 27
Z-axis motor torque Nm 27
Spindle center height mm 880
Roughness mm Ra3.2～Ra6.4
Machine weight ㎏ 20000
Machine dimension（L×W×H） mm 14750*2450*2150