EQUIPMENT TECHNICAL DESCRIPTION
Our machines follow a reference plane electronically. Utilizing the strength of the item being machined for support, we are able to minimize the structural strength and weight of our equipment. This eliminates the need for self-supporting rigid portable machines that require considerable time and engineering effort to install.
Rectangular or Irregular shaped surfaces up to 16m x 11.5m (50ft x 38ft) (LSLM):
A scanning laser is used to scan across the work piece and is set parallel to the desired machining plane. The milling machine consists of two fixed beds, which straddle the work piece. A cross bed can be driven along the two fixed beds.
The milling head, located on a saddle plate, can travel along the cross bed. This allows the milling cutter to be moved to any location on an X-Y axis over the work piece. The milling head is fitted with targets and servo drives. The targets interface with the scanning laser beam and a control circuit adjusts the servo drives to maintain the milling cutter parallel to the laser plane regardless of the errors which affect the saddle plate position.
The large sizes involved would normally require very heavy beams to minimize deflection with the thermal errors still remaining. By following a laser plane, our design eliminates all thermal effects and the need for massive structures. This also allows for large area coverage in a single set up.
The same scanning laser can also be used to monitor cuts and carry out surveys during and after the machining operation.