The machine bed is mainly used to carry the workpiece. A fixed bed head is installed at one end of the bed, and two rectangular guide rails are laid on the plane of the bed, and the tail of the bed can be slid on the top, and the hydraulic three-jaw chuck is installed on the bed and the tail of the bed, so that the drum can be automatically centered and clamped.
The machine bed is mainly used to carry the workpiece. A fixed bed head is installed at one end of the bed, and two rectangular guide rails are laid on the plane of the bed, and the tail of the bed can be slid on the top, and the hydraulic three-jaw chuck is installed on the bed and the tail of the bed, so that the drum can be automatically centered and clamped.
(1)Main Technical Parameters
| name | item | ALTD1212/3 |
| Workpiece size | Drum diameter range | Φ800-Φ1200mm |
| Drum length range | 2-12m | |
| Maximum wall thickness | 20mm | |
| Drilling diameter | Φ63mm | |
| Pitch accuracy | Adjacent hole spacing：±1.5mm | |
| Farthest hole pitch：±2.0mm | ||
| Drilling spindle power head | Maximum torque（n=80r/min） | 937.5Nm |
| Type | Hydraulic slide table, fast forward - work in advance - fast reverse automatic conversion | |
| Quantity | 3 | |
| Spindle taper | Mohs 6# | |
| Spindle speed | 80．100.125.160．200r/min (hanging wheel) five kinds | |
| Spindle travel | 500mm | |
| Spindle feed speed | 10-200mm/min | |
| Spindle motor power | 3x7.5kW | |
| Hydraulic oil working temperature | ≤60℃ | |
| Laser line device | Adjust hole group position by weld position | |
| Workpiece rotation speed | 0～2.8r/min | |
| Slide speed | 0～8m/min | |
| Tailstock drive motor power | 2.2kW | |
| Slider drive servo motor power | 3X1.5kW | |
| Cooling pump motor power | 450W | |
| Chip conveyor drive motor power | 750W | |
| Chuck center from ground level | 1570mm | |
| Machine dimensions (length x width x height) | about 18.5x5x2m | |
The machine is equipped with a laser cross-line device, which can be installed in the spindle taper hole of any drilling power head as needed. It is convenient to find the position of the weld in the longitudinal and lateral directions of the outer circular surface of the drum to determine the drilling position.
