Device for machining a workpiece equipped with an air system

A device for machining a workpiece comprising a housing delimiting an enclosure, at least one machining head carrying a machining tool housed in said housing, and means for moving said machining tool on at least one Y axis, and an air system for evacuating the chips produced during the machining of said workpiece, said air system comprising:

• an air inlet and an air outlet which are provided in said housing and an air flow channel which extends between the air inlet and outlet;
• a means for causing an air flow to flow in said air flow channel between the inlet and outlet;
• and
• an air passage through-hole delimiting said air outlet through which said machining tool extends so that said air flow caused to flow in said air channel can be expelled from said housing through said through-hole in order to repel said chips produced by said machining tool during the machining of said workpiece out of said enclosure of said housing;
• and
• at least one shutter for partial closure of said air passage through-hole defining an air passage section S, said at least one shutter being movable with respect to said through-hole so as to be able to delimit an air passage section S1 limiting said air passage section S which makes it possible to increase the speed of the air flow expelled from said housing via said air outlet.