MACHINING TOOL FOR VALVE SEAT SURFACE OF CYLINDER HEAD

Title:

MACHINING TOOL FOR VALVE SEAT SURFACE OF CYLINDER HEAD

Document Type and Number:

Japanese Patent JP2005177915

Kind Code:

A

Abstract:

To provide a machining tool for a valve seat surface of a cylinder head improving the machining accuracy, particularly width accuracy, of the valve seat surface provided at the cylinder head.

A tip part of the machining tool 14 is provided with valve guide hole machining parts 17, 18. A rear end part of the machining tool 14 is provided with a valve seat surface machining tool 19. First grinding wheels 22 for grinding the valve seat surface are arranged almost equally at three or more parts to a holder 20 constituting the valve seat surface machining tool 19, and second and third grinding wheels 26, 29 for grinding relief faces formed on both sides of the valve seat surface are arranged equally at three or more parts respectively.

Inventors:

NUKUI MITSURU
MURAI SHIRO
HONPO SATOSHI

Application Number:

JP2003421405A

Publication Date:

July 07, 2005

Filing Date:

December 18, 2003

Export Citation:

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Assignee:

NIPPEI TOYAMA CORP

International Classes:

B24B15/04; B24D3/06; B24D7/00; B24D7/06; B24D7/14; B24D7/18; (IPC1-7): B24B15/04; B24D3/06; B24D7/00; B24D7/06; B24D7/14; B24D7/18

Attorney, Agent or Firm:

Hironobu Onda
Makoto Onda

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