Abstract: In a method for checking a contour of a workpiece, a tactile switching touch probe with a shaped probe element is clamped in a machine tool and connected to a control facility. The touch probe is guided, preferably multiple times, with a different distance or different deflection of the touch probe, along a nominal contour of the workpiece. It is checked whether the touch probe generates a switching signal or loses a switching signal, indicating to a contour deviation. A machine tool and a simulation tool constructed as a digital twin are also disclosed. This enables a fast, simple and cost-effective check of the dimensional accuracy of workpieces machined or produced in the machine tool.

Abstract: In a method for checking a contour of a workpiece, a tactile switching touch probe with a shaped probe element is clamped in a machine tool and connected to a control facility. The touch probe is guided, preferably multiple times, with a different distance or different deflection of the touch probe, along a nominal contour of the workpiece. It is checked whether the touch probe generates a switching signal or loses a switching signal, indicating to a contour deviation. A machine tool and a simulation tool constructed as a digital twin are also disclosed. This enables a fast, simple and cost-effective check of the dimensional accuracy of workpieces machined or produced in the machine tool.

Abstract: A machine tool holding workpieces has measuring probes disposed on spindles. The spindles move in common relative to the workpieces until a termination criterion is reached for the common displacement movement. During the common displacement movement, a position of a measuring probe relative to a respective workpiece is detected where the measuring probe makes contact with the respective workpiece or loses contact with the respective workpiece, allowing geometric statements about the respective workpiece to be derived. The measuring probes are kept at a rest position relative to their respective spindle during the common displacement movement, as long as the respective measuring probe does not yet make contact with the respective workpiece. Following contact with the respective workpiece, a deflection from a rest position is detected. The termination criterion is satisfied as soon as the deflection of at least one of the measuring probes reaches a maximum deflection.

Abstract: A machine tool holding workpieces has measuring probes disposed on spindles. The spindles move in common relative to the workpieces until a termination criterion is reached for the common displacement movement. During the common displacement movement, a position of a measuring probe relative to a respective workpiece is detected where the measuring probe makes contact with the respective workpiece or loses contact with the respective workpiece, allowing geometric statements about the respective workpiece to be derived. The measuring probes are kept at a rest position relative to their respective spindle during the common displacement movement, as long as the respective measuring probe does not yet make contact with the respective workpiece. Following contact with the respective workpiece, a deflection from a rest position is detected. The termination criterion is satisfied as soon as the deflection of at least one of the measuring probes reaches a maximum deflection.