US Patent 7438676 Automatic tool changer of laser beam machine

The invention provides a torch changer with a large capacity for a flying optics-type laser beam machine. A table 15 of the laser beam machine is fixed, and a laser beam working head 50 moves in three axial directions. A torch changing unit 300 is disposed on a setup station 90 disposed outside the processing area at the end of the table. A torch storing device 100 stores a large number of torch holders 150 supported by forks on the outer side of a chain 130. A torch holder shifter 200 sends out the torch holder 150 positioned at a shift position towards the torch changing unit 300, where the torch attached to the working head 50 is changed.