MANUFACTURE OF BODY STRUCTURE FOR RAILWAY ROLLING STOCK AND MANUFACTURING DEVICE THEREOF

Japanese Patent JPH1148968

A

To stably fix a workpiece by providing a fixing jig of a workpiece arranged on the opposite side of a rotary tool with a revolving mechanism and a mechanism following deformation of the workpiece and automatically moving in the vertical direction.

Supporting jigs 7 and 8 fixing a workpiece 2 are arranged on the arrangement side of a rotary tool 1 and on the opposite side. The supporting jigs 7, 8 are provided with revolving mechanisms. The supporting jigs 7, 8 are mounted on a supporting mechanism 9 and are provided with structures interlocking with the upper and lower parts of the workpiece 2 and automatically moving in the vertical direction. Further, the jigs 7, 8 move by interlocking with the moving of the welding direction of the rotary tool 1. The rotary tool 1 is mounted on a motor 10 and moves in 5 directions, revolving in 4 directions. The rotary tool 1 is provided with a mechanism following deformation of the vertical direction of the workpiece 2 and automatically moving in the vertical direction. Thus, frictional resistance of the workpiece 2 and the fixing jigs is reduced. Therefore, even a long workpiece 2 such as a railway rolling stock can be easily and stably fixed.

OKAMURA HISANOBU
FUNYU MASAO
SATO AKIHIRO
AOTA KINYA
ESUMI MASAKUNI
ISHIMARU YASUO

JP21161697A

February 23, 1999

August 06, 1997

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HITACHI LTD

B61D17/00; B23K9/00; B23K20/12; B23K28/02; B61D17/04; B23K103/10; (IPC1-7): B61D17/00; B23K20/12; B23K28/02; B23K37/047; B61D17/04

Ogawa Katsuo

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