Laser machining head and auxiliary equipment for a numerically controlled machine tool

Auxiliary equipment for a numerically controlled machine tool having a tool holder adapted for coupling with a mechanical machining head so as to define an axis, comprising

• a laser,
• a laser machining head,
• a light conducting cable which transmits laser rays from said laser to said laser machining head,
• a tool box adapted for holding said laser machining head when said laser machining head is not in use,
• a control circuit connected to said laser for actuating said laser and said machine tool,
• wherein said laser machining head comprises a first element comprising a tool shaft, said tool shaft being configured for coaxially coupling said laser machining head to said tool holder, a second element containing laser optics, and means for movably connecting said second element to said first element so that the position of said second element is adjustable relative to said first element,
• said laser machining head further including a control switch which is actuated when said tool shaft is coupled to said tool holder, and a position sensor which senses the position of said second element relative to said first element, said control switch and position sensor actuating a safety circuit constituting a part of the control circuit to switch on said laser.

Laser machining head for a numerically controlled machine tool having a tool holder adapted for coupling with a mechanical machining head so as to define an axis, comprising

• a first element comprising a tool shaft, said tool shaft being configured for co-axially coupling said laser machining head to said tool holder,
• a second element containing laser optics,
• means for movably connecting said second element to said first element so that the position of said second element is adjustable relative to said first element, and
• a control switch which is actuated when said tool shaft is coupled to said tool holder.