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:
Feb. 27, 1996
Filed:
Aug. 18, 1994
Takashi Yagi, Sagamihara, JP;
Mitsuo Sato, Sagamihara, JP;
Aida Engineering, Ltd., Sagamihara, JP;
Abstract
An apparatus for rapidly and accurately correcting the bottom dead center position of the slide of a mechanical press during the operation of the press. The apparatus includes a hollow cylindrical member, disposed between a slide and a die-height adjusting screw mechanism, that can be expanded or contracted along its axis. Also provided are a bottom dead center position setter, a bottom dead center position detector for detecting a bottom dead center position of the slide, and a force applying unit which supplies a contraction force to the hollow cylindrical member. A correction control unit controls the force applying unit to expand or contract the hollow cylindrical member in order to correct the slide bottom dead center position, so that a detected bottom dead center position coincides with the set bottom dead center position.