US 12,318,878 B2
Method for determining the position of a part in an orthonormal frame of reference based on a structure of a numerically controlled machine tool
Denis Meyer, La Chaux-de-Fonds (CH)
Assigned to Universo S.A., La Chaux-de-Fonds (CH)
Filed by Universo S.A., La Chaux-de-Fonds (CH)
Filed on Feb. 24, 2023, as Appl. No. 18/173,905.
Claims priority of application No. 22175352 (EP), filed on May 25, 2022.
Prior Publication US 2023/0405750 A1, Dec. 21, 2023
Int. Cl. B23Q 15/12 (2006.01); B23Q 17/24 (2006.01); G01B 11/14 (2006.01)
CPC B23Q 15/12 (2013.01) [B23Q 17/2428 (2013.01); G01B 11/14 (2013.01)] 11 Claims
OG exemplary drawing
 
1. A method for determining the position of a part in an orthonormal frame of reference based on a structure of a numerically controlled machine tool in order to determine a trajectory of a tool for performing an operation on said part, the method including the steps of:
holding the part in position on a fixed carrier inside an enclosure of said machine tool, so as to arrange a through-hole comprised in the part such that it faces a through-orifice comprised in the carrier, said through-hole opening out in its entirety inside said through-orifice,
illuminating, using a light source, so as to emit light radiation from the carrier towards an optical measuring instrument arranged inside the enclosure of the machine tool, through the through-hole and the through-orifice,
reading the part using the optical measuring instrument so as to determine the position of said part in the orthonormal frame of reference;
said method comprising, before the illumination step, a step of integrating the light source into a cavity of the carrier.