US 12,269,185 B2
Method for determining components of a mechanical action torsor at the guiding point of a cutting blade for a cutting machine
Didier Chabirand-Garconnet, Cestas (FR); Olivier Cahuc, Canejan (FR); Quentin Cosson-Coche, Le Pian sur Garonne (FR); Philippe Darnis, Louchats (FR); Raynald Laheurte, Gradignan (FR); and Denis Teissandier, Canejan (FR)
Assigned to LECTRA, Paris (FR); AMVALOR, Paris (FR); UNIVERSITE DE BORDEAUX, Bordeaux (FR); INSTITUT POLYTECHNIQUE DE BORDEAUX, Talence (FR); CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE, Paris (FR); and ECOLE NATIONALE SUPERIEURE D'ARTS ET METIERS (ENSAM), Paris (FR)
Appl. No. 17/914,165
Filed by LECTRA, Paris (FR); AMVALOR, Paris (FR); UNIVERSITE DE BORDEAUX, Bordeaux (FR); INSTITUT POLYTECHNIQUE DE BORDEAUX, Talence (FR); CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE, Paris (FR); and ECOLE NATIONALE SUPERIEURE D'ARTS ET METIERS (ENSAM), Paris (FR)
PCT Filed Mar. 23, 2021, PCT No. PCT/FR2021/050499
§ 371(c)(1), (2) Date Jan. 31, 2023,
PCT Pub. No. WO2021/198586, PCT Pub. Date Oct. 7, 2021.
Claims priority of application No. 2003227 (FR), filed on Mar. 31, 2020.
Prior Publication US 2023/0226712 A1, Jul. 20, 2023
Int. Cl. B26F 1/38 (2006.01); B26D 5/00 (2006.01)
CPC B26F 1/382 (2013.01) [B26D 5/005 (2013.01)] 9 Claims
OG exemplary drawing
 
1. A method for determining components of a mechanical action torsor at the guiding point of a cutting blade for a cutting machine, the blade being guided in a presser foot of a cutting head of the machine, the method comprising:
positioning a five-component dynamometer on the presser foot, the dynamometer comprising a plurality of sensors capable of determining a frontal force, a lateral force, a rolling moment, a pitching moment and a yawing moment of the cutting blade;
establishing a calibration matrix of the dynamometer; and
determining the forces in three dimensions to which the cutting blade is subjected, on the basis of measurements obtained by the sensors and the calibration matrix.