METHOD FOR GRINDING IN VERTICAL TYPE DOUBLE-DISC SURFACE GRINDING MACHINE

Japanese Patent JP3806680

B2

PROBLEM TO BE SOLVED: To provide a method for grinding in a vertical type double-disc surface grinding machine which efficiently feeds a grinding wheel for grinding in accordance with pre-processing precision in each workpiece even when there is large irregularity in pre-processing precision.
SOLUTION: An upper and a lower grinding wheels 2 and 3 are moved from a stand-by position to a grinding end position at a grinding position A1 for simultaneously grinding an upper and a lower flat surfaces of the workpiece in this method. By a pre-processing measuring device 13 disposed close to a workpiece attaching/detaching position A1, vertical positions of the upper and the lower flat surfaces of the workpiece W before grinding are measured, and the stand-by positions of the grinding wheels 2 and 3 are set based on measurements. The workpiece W is moved to a grinding position A2, and the grinding wheels 2 and 3 are moved at high feed speed from the above-mentioned set stand-by positions to a grinding start position where they get in contact with the workpiece or a position before they get in contact. Grinding is then conducted at grinding speed lower than the feed speed.

WO/2005/080048	MACHINE TOOL FOR MACHINING WORKPIECES
JP2003136401	METHOD AND DEVICE FOR MEASURING DEFORMATION OF BAR

Akizen Saito

JP2002235684A

August 09, 2006

August 13, 2002

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Daisho Seiki Co., Ltd.

B23Q17/20; B24B7/17; B24B47/22; B24B49/02; (IPC1-7): B24B7/17; B23Q17/20; B24B47/22; B24B49/02

JP2002144226A
JP4300160A
JP11114817A
JP11320360A

Aoyama Aoi
Osamu Kawamiya
Tadataka Omori

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