The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 26, 1989
Filed:
Mar. 14, 1988
Applicant:
Inventor:
Shigeo Noda, Nagoya, JP;
Assignee:
Toyoda Machine Works, Ltd., Kariya, JP;
Primary Examiner:
Int. Cl.
CPC ...
B23Q / ; B23B / ; G06M / ;
U.S. Cl.
CPC ...
377 15 ; 377 16 ; 377 20 ; 409234 ; 408-6 ; 408 16 ; 29568 ;
Abstract
A tool holder for monitoring the service time of a tool holded on the tool holder is disclosed. A sensor and electric circuit are provided for determining whether or not the machining operation with the tool is executed. Counters are provided for counting time cumulatively during the time when the machining operation is executed, and store the cumulative time as the service time of the tool. The service time is output to a numerical control apparatus via an output device.