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Patent Searching and Data


Title:
CLAMP DEVICE FOR BUTTING MEMBER
Document Type and Number:
Japanese Patent JP2000218453
Kind Code:
A
Abstract:

To clamp one of members to be butted against each other while automatically centering the same with respect to the other of the member without changing a clamp force with the use of a simple structure.

A pair of cylinders 4, 5 are opposed to each other, one of members to be butted against each other, being interposed therebetween. An unclamp side port of the cylinder 4 is connected to a clamp side port of the cylinder 5 through a pipe line 42 communicated with a tank 18. A bi-directional pump 45 which is located between the pipe line 42 and the tank 18, is controlled so that the difference between the rod displacements of the cylinder 4, 5 becomes equal to a set value, and further, the set value is corrected, using a degree of off-center from the reference position of the other member 10 as a correction value.


Inventors:
Mukai, Takamine
Doi, Makoto
Application Number:
JP1999000024033
Publication Date:
August 08, 2000
Filing Date:
February 01, 1999
Export Citation:
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Assignee:
NKK CORP
International Classes:
B23Q3/06; B23K37/04; F15B9/09; (IPC1-7): B23Q3/06; B23K37/04; F15B9/09
Attorney, Agent or Firm:
佐々木 宗治 (外3名)