MEASURING DEVICE, MEASURING METHOD THEREFOR, WORK POSITION CORRECTING DEVICE FOR CUTTING MACHINE, WORK POSITION CORRECTING METHOD THEREFOR, IMAGE CAPTURING DEVICE, AND CUTTING MACHINE PROVIDED WITH THE IMAGE CAPTURING DEVICE

Title:

Document Type and Number:

WIPO Patent Application WO/2010/125947

Kind Code:

A1

Abstract:

Provided is a device capable of accurately correcting the work position by accurately detecting the amount of displacement of a cutting tool with respect to a workpiece. Also provided is a method therefor. A turret gauge (46) is configured by an invar body (47) and a gauge main body (48) having a different thermal expansion coefficient therefrom. Images are captured at the time of initial setting and during a calibration cycle (CS) while a view of a point A of the gauge main body (48) and the tip (47A) of the invar body is commanded, and the temperature of the gauge main body (48) is detected by comparing respective pieces of image data. The length between the point A and a point B of the gauge main body (48) during the CS is obtained from the image data. This actual length is compared with the theoretical length between the point A and the point B at the temperature of the gauge main body (48) during the CS and taken into account, so that the amount of thermal displacement of a ball screw can be precisely detected and the displacement of the work position of the cutting tool can be accurately corrected, resulting in an improvement in the working accuracy of the workpiece.

Inventors:

KAWADA, Tosuke (LTD. 19 Chausuyama Yamamachi, Chiryu-sh, Aichi 86, 〒4728686, JP)
河田　東輔 (〒86 愛知県知立市山町茶碓山１９番地 Aichi, 〒4728686, JP)
KATO, Masaki (LTD. 19 Chausuyama Yamamachi, Chiryu-sh, Aichi 86, 〒4728686, JP)

Application Number:

JP2010/056995

Publication Date:

November 04, 2010

Filing Date:

April 20, 2010

Export Citation:

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Assignee:

FUJI MACHINE MFG. CO., LTD. (19 Chausuyama, Yamamachi Chiryu-sh, Aichi 86, 〒4728686, JP)
富士機械製造株式会社 (〒86 愛知県知立市山町茶碓山１９番地 Aichi, 〒4728686, JP)
KAWADA, Tosuke (LTD. 19 Chausuyama Yamamachi, Chiryu-sh, Aichi 86, 〒4728686, JP)
河田　東輔 (〒86 愛知県知立市山町茶碓山１９番地 Aichi, 〒4728686, JP)

International Classes:

G03B17/17; B23B25/06; B23Q17/20; B23Q17/24; G01K5/48; G03B15/00; G03B17/02; H04N5/225