MILLING AND CUTOFF MACHINE AND METHOD FOR CONTROLLING MILLING AND CUTOFF MACHINE Russian patent published in 2018 - IPC B23D53/04 B23Q5/00 

FIELD: tools.

SUBSTANCE: invention relates to a method for operating a milling and cutoff machine with a saw tool that is driven by an electric drive of the saw tool with a first frequency converter and with a saw feeder for moving with a feeding speed of the powered saw tool with respect to the part to be cut, as well as to such a milling and cutoff machine. When the sawing tool cuts into the workpiece, a shift is made from the idling speed to the working feed rate. In this case, the first frequency converter determines the magnitude of the physical value, which corresponds to the torque transmitted from the saw blade drive to the saw tool, or on the basis of which the change in this torque is calculated. Switching from the idle speed to the operating feed rate is performed depending on the magnitude of this physical value.

EFFECT: as a result, the damage to the saw blade is prevented.

19 cl, 5 dwg