Device and method for checking programs of numerical control machine

A method for checking a program of a numerical control machine, comprising the steps of:

• inputting a program in the numerical control machine;
• providing a device for checking the program of numerical control machine, the device comprising a tool rest mounted on the numerical control machine and a lamp-house assembled on the tool rest, the lamp-house being adapted to face a workpiece mounted on the numerical control machine and emit light;
• moving the tool rest with the lamp-house away from the workpiece;
• and
• turning on the numerical control machine and the lamp-house, moving the lamp-house according to the program in the numerical control machine, irradiating the workpiece with light emitted by the lamp-house.

A method for verifying a machining program of a machine, comprising the steps of:

• retrieving a machining program of a machine comprising instructive ways for machining a workpiece;
• preparing a light source emitting light capable of simulating at least one machining tool of said machine applied by said machining program;
• installing said light source on said machine beside said workpiece fixed on said machine;
• and
• evaluating machining results of said machining program by examining interaction of said light with said workpiece fixed on said machine according to applying of said machining program on light emitting of said light source.