Feature of CNC-machining centres, to avoid mistakes by the loading of the tool changer and to reset the length of tools with the internal database.

operating mode

The control of the length of the tool is used in combination with a separate tool holder. The operator does not directly load the tool changer, but puts a new acquiring tool into the tool holder. Thence the machine takes it and moves to a sensor, before it is exchanged in the tool changer. There the length of the tool is measured and adjusted with the data of the internal tool database. In case of slight differences, e.g. after the sharpening, the appropriate data of the data base can be corrected. If by mistake a wrong tool is loaded, it is identified with the help of the different measurements.

In this way it is possible to avoid, that through the wrong loading of the tool changer, e.g. with a longer tool, possibly the machine table, the tool or the working spindle will be damaged.