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:
Mar. 17, 1987
Filed:
Apr. 18, 1985
Gerard Crespin, Villeurbanne, FR;
Framatome & Cie., Courbevoie, FR;
Abstract
Device for calibrating a machine tool including a tool (32) rotating about its axis XX', comprising a tubular-shaped support with an annular fixing component (3) connecting it to the housing (1) of the machine tool so that its central opening forms an extension of the opening (2) of the housing (1) for the passage of the tool (32). The support also has at least one part (18) which is deformable under the action of twisting about the axis XX' and is provided with at least one strain gauge (19), and an end part (12) which is opposite the fixing component (3) and in which there is arranged, along the axis of the support, a component (20) for connecting the end of the tool (32), which component is provided with means (20') enabling locking of said tool in rotation with the connection component. The latter carries a disk (30) located between two annular components (31a and 31b) held against the disk (30 ) by adjustable means (22, 25). As a result of a measuring means associated with the strain gauge (19), a current representing the resisting torque opposing the tool (32) may be measured via the disk (30) and the components (31a and 31b). The invention relates, in particular, to machines for screwing the partitioning of a nuclear reactor core.