Device and method for measuring and monitoring tools
AssigneeSandvik Tooling Deutschland GmbH
InventorWerner KLUFT
Life of this patent
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Abstract
A device for measuring and monitoring tools of a machine tool, wherein the machine tool comprises a spindle shaft for the tool, the shaft being arranged in a spindle housing, wherein a work piece with good electric conductivity can be machined using the tool, wherein the spindle shaft is electrically insulated from the spindle housing, includes a measuring and monitoring system. The measuring and monitoring system measures at least one electric measurement, which depends on the contacting state between the tool and the work piece. A rotary transmitter contacts the rotating spindle shaft to measure the measurement detectable between the tool and the work piece, wherein the rotary transmitter is connected with the spindle housing in an electrically insulated manner.
Claims15
A device for measuring and monitoring tools of a machine tool, the machine tool having a spindle shaft for the tool, the shaft being arranged in a spindle housing, wherein a work piece with good electric conductivity can be machined using the tool, the spindle shaft being electrically insulated from the spindle housing, the device comprising:
- a measuring and monitoring system that measures at least one electric measurement and which depends on a contacting state between the tool and the work piece;
- and
- a rotary transmitter that contacts the rotating spindle shaft to measure the at least one electric measurement detectable between the tool and the work piece, wherein the rotary transmitter is connected with the spindle housing in an electrically insulated manner.
A machine tool comprising:
- a spindle shaft for the tool, the shaft being arranged in a spindle housing, wherein a work piece with good electric conductivity can be machined using the tool, the spindle shaft being electrically insulated from the spindle housing;
- a measuring and monitoring system arranged to measure at least one electric measurement, which depends on a contacting state between the tool and the work piece;
- and
- a rotary transmitter that contacts the rotating spindle shaft to measure the at least one electric measurement and detectable between the tool and the work piece, wherein the rotary transmitter is connected with the spindle housing in an electrically insulated manner.
A method for measuring and monitoring tools of a machine tool, the machine tool having a spindle shaft for the tool, the shaft being arranged in a spindle housing, wherein a work piece with good electric conductivity can be machined using the tool, the spindle shaft being electrically insulated from the spindle housing, comprising the steps of:
- providing a measuring and monitoring system with which at least one electric measurement is measured that depends on a contacting state between the tool and the work piece, wherein work pieces with good electric conductivity are machined;
- providing a rotary transmitter contacting the rotating spindle shaft, wherein the rotary transmitter is connected with the spindle housing in an electrically insulated manner;
- and
- measuring the at least one electric measurement detectable between the tool and the work piece.
A device for measuring and monitoring tools of a machine tool, wherein the machine tool includes a spindle shaft for the tool, the shaft being arranged in a spindle housing, wherein a work piece with good electric conductivity can be machined using the tool, the spindle shaft being electrically insulated from the spindle housing, the device comprising a measuring and monitoring system that measures at least one electric measurement, which depends on a contacting state between the tool and the work piece, for detecting the orientation of the work piece with respect to the machine tool, the work piece can be contacted or drilled by the tool and the measuring and monitoring system detects the contact between the tool and the work piece at the moment of contact using the electric measure and retrieves an associated position of the tool via data transfer with a machine control of the machine tool and stores the same, or causes the position to be stored in the machine control at the time of contact by means of a fast contact command to the machine control.
A method for measuring and monitoring tools of a machine tool, the machine tool having a spindle shaft for the tool, the shaft being arranged in a spindle housing, wherein a work piece with good electric conductivity can be machined using the tool, the spindle shaft being electrically insulated from the spindle housing, comprising the steps of:
- providing a measuring and monitoring system with which at least one electric measurement is measured that depends on a contacting state between the tool and the work piece;
- and
- determining the orientation of the work piece relative to the machine tool, the work piece being drilled by the tool and at a moment at which the tool contacts the work piece for the first time is detected using the electric measurement and an associated position of the tool is stored.
Dependencies are inferred from the claim text.