Patent ID: 8151659
Filing Date: 2012-04-10
Classification: B23Q

Abstract:
1. A machine tool for chip removing machining operations on workpieces using tools, the machine tool comprising a tool checking device for checking a tool of the machine tool for damage or fracture with a sensor, the sensor being a contact-free sensor and arranged on a movably disposed sensor holder, the tool checking device possesses a drive for the sensor holder which moves the sensor toward and away from the tool to be checked, and the machine tool or the tool checking device possesses a control module for the control of the drive to perform a measuring excursion so that the drive moves the sensor toward the tool to be checked for a measurement of the tool and, after the measurement of the tool, the drive moves the sensor away from the tool, wherein the control module controls the drive to perform the measuring excursion in respective idle times of the machine tool and the tool checking device is arranged on a conveying path of a tool conveyor for conveying tools toward and away from at least one working spindle of the machine tool such that the tools are spaced and separate from the at least one working spindle during the measurement.