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Add: No.21, D Zone Jingjinluji Industry Park, Xingfu Road, Dezhou City, Shandong, China
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Deep Hole Counter Boring Machine
This machine is suitable for drilling and boring cylindrical workpieces.When drilling , it adopt chips internal removal method (BTA method),it means the cutting oil supplied by oil pressure head ,through cutting area,remove the cutting chips from the inner hole of drill bar to the chips pot at back of machine bed ; It adopt push boring method, remove the chips from front or middle of the machine . The cutting oil is supplied from the rear of boring bar ,equipped with chips pots .
Description
1. Machine processing capability:
Solid drilling diameter range | Φ25～Φ100mm (By BTA solid drill head) |
Boring diameter range | Φ40～Φ200mm (By counter boring head ) |
Max. Hole drilling depth | 3000mm |
Max. Workpiece length | 3000mm |
Workpiece OD range | Φ60～Φ400mm |
2. Machine processing method:
Solid drilling mode | BTA drilling method(chips removed through drilling bar) |
Hole boring process | Pushing boring method .Chips removed through workpiece’s cored hole. |
Infeeding method | It adopts the servo motor,servo reducer ,rack and pinion structure to drive the cutter tool infeed,the stepless speed regulation can be realized. |
3. Machine brief and components :
The machine is mainly composed of machine ed body, headstock, 1 set of workpiece bracket, oil pressure head, 2 sets Drill bar support, drill box, sliding guide rail, rack and pinion structure, drilling and boring cooling system, Delta PLC control system, electric Cabinet, 1 set center frame etc.
Workpiece clamping
One end of the workpiece is clamping by the manual three-jaw chuck on the headstock; and the oil pressure head automatically tightens the other end of the workpiece (the chamfer of the workpiece's outer circle is 2 x 30 degrees). The center frame is used for supporting the workpiece.
CNC Axis:
Z1 axis: Longitudinal infeed motion of drill box, servo motor drives rack and pinion structure through deceleration reducer.
Z2 Axis: Oil pressure head servo tightens workpiece, servo motor drives rack and pinion structure throug d reducer.
The box body, machine bed body, bracket and other basic parts are made of high quality cast iron. After casting, they are aged twice to eliminate internal stress, stabilize structure and size, and improve mechanical properties.
Machine Mainly Parameters :
Specification | Parameters | Note | ||
Working capacity | Drilling diameter range | Φ25～Φ100mm | ||
Boring (burnishing)range | Φ40～Φ200mm | |||
Working depth | 3m | |||
Workpiece OD range | Φ60～Φ400mm | |||
Workpiece Length range | 0.5m~3m | |||
Machine performance | Z1 axis (drill box infeed) | Infeed speed range | 5～500mm/min | |
Rapid traverse rate | 1500mm/min | |||
Servo motor torque | 20Nm | |||
Z2axis (oil pressure head movement) | Rapid traverse rate | 3m/min | ||
Servo motor torque | 20Nm | |||
Drill box | Rotary speed range | 40～500r/min | 12 gears speed | |
Motor power | 30KW | three phase asynchronous motor | ||
Headstock | Rotary speed range | 61～1000r/min | 12 gears speed | |
Motor power | 30KW | three phase asynchronous motor | ||
Chuck | φ400mm | Manually 3 jaw chuck | ||
Others | Machine total power | 89KW | ||
Machine load capacity | 3T | |||
Machine floor space | 12.7m×3m | |||
Cooling system | Max.pressure | 2.5MPa | ||
Max.flow | 400L/min | |||
Oil tank volume(roughly) | 4600L | |||
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