Gantry Movable CNC Tube Drilling Machine JXZ
Machine application:
Machine is mainly used in boiler industry tube drilling by using high speed carbide drill, also can use special high speed steel drill cutter machining welding groove. No need of manual lineation, greatly improves positioning accuracy and drilling efficiency, realizes drilling automation.
Machine is gantry movable flexible CNC drilling machine, suitable for mass production.
Machine features:
1. Adopts precision spindle to realize high efficiency drilling and processing welding groove;
2. CAD/CAM direct conversion, automation and high precision processing, support ERP system;
3. Double gantries double stations structure, two short tubes can be processed at the same time, long tube can be processing with double gantries.
4. Independent drive of each gantry, gantry numbers can be designed by customer’s requirement; Each gantry can be used as an independent processing unit, process different workpieces at the same time, also can online process the same workpiece simultaneously.
5. Tube supporting bracket, lifting supporting bracket and fixed supporting bracket 2 types, lifting supporting bracket lifts workpiece when rotates, and lower to fixed supporting bracket to prevent workpiece from slipping.
6. CNC dividing head, each is installed on both sides of machine bed, can set X axis movable, equip with self centering chuck, convenient for workpiece clamping.
7. Adopts famous brand imported spindles, with super large torque output capacity, spindles adopt synchronous pulley type.
8. Electrical system, machine adopts Germany SIEMENS 840D or 2 sets of 808D CNC system, with RS232 interface and LCD, CAD/CAM coordinate conversion can be achieved directly, with preview and review functions before drilling, very easy operation.
Parameter list:
| Name | Item | Values |
|---|---|---|
| Workpiece parameter | Workpiece diameter range | Φ75mm-Φ1100mm (by customer requirement) |
| Max.length | 12m/double-station, 25m/single-station (by customer requirement) | |
| Drilling diameter range | Φ10-Φ80mm | |
| Workpiece material | Carbon Steel、Low alloy steel、P91、P92 and stainless steel | |
| Min. hole distance | 20mm (From hole edge to workpiece end face) | |
| Drilling Head | Quantity | 2 pieces |
| Spindle taper | BT50 | |
| Max.drilling diameter | Φ80mm | |
| Max.diameter of trepan boring | Φ280mm | |
| Drilling depth | ≤200 | |
| Spindle rotation speed | 30—3000r/min | |
| Spindle motor power | 37kW | |
| Gantry longitudinal movement（X axis） | Max.distance (spindle center) | 27m (by customer requirement) |
| X axis moving speed | 0-10m/min | |
| X axis servo motor power | 2X5.2kW | |
| Drilling Head (Z axis) | Z axis stroke | 500mm/800mm/1000mm |
| Z axis feeding speed | 0-5m/min | |
| Z axis servo motor power | 2X5.2kW | |
| CNC dividing head A axis | Indexing rotary speed (CNC) | 0-5r/min |
| CNC dividing motor power | 3kW/5kW/10kW | |
| Positioning accuracy | X axis | 0.15mm/total length |
| Z axis | 0.08mm/total length | |
| Repeat positioning accuracy | X axis | 0.08mm |
| Z axis | 0.04mm | |
| Hydraulic System | Hydraulic pump press | 6MPa |
| Hydraulic pump motor power | 3kW | |
| Pneumatic system | Compressed air supply pressure | ≥0.5MPa |
| Chip Removal and cooling | Type of chip conveyor | Plate chain type |
| Chip-conveyor quantity | 2 piece | |
| Chip Removal speed | 1m/min | |
| Chip-conveyor motor power | 0.75kW | |
| Inner cooling | High-pressure water cooling | |
| External cooling | Water cooling | |
| Automatic lubrication system | Lubrication pressure | 2MPa |
| Lubricate point injection flow | 0.1mL | |
| Lubrication period | 6-10min | |
| Electrical System | CNC system | SIEMENS 808D (dual system)/ SIEMENS 828D (system) |
| CNC axis | 8+2 Spindle | |
| Total motor power | About 120kW | |
| Overall dimension | LxWxH | About 32X4.5X4.5m |
| Machine weight | About 120t | |
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