US 12,337,418 B2
Bead appearance inspection device, bead appearance inspection method, program, and bead appearance inspection system
Kazuki Hanada, Osaka (JP); Masashi Yoshida, Tokyo (JP); and Takamichi Komatsu, Osaka (JP)
Assigned to PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD., Osaka (JP)
Filed by Panasonic Intellectual Property Management Co., Ltd., Osaka (JP)
Filed on Sep. 1, 2022, as Appl. No. 17/901,625.
Application 17/901,625 is a continuation of application No. PCT/JP2021/008624, filed on Mar. 5, 2021.
Claims priority of application No. 2020-038204 (JP), filed on Mar. 5, 2020.
Prior Publication US 2022/0410324 A1, Dec. 29, 2022
Int. Cl. G06F 11/30 (2006.01); B23K 9/095 (2006.01); B23K 31/02 (2006.01); B25J 11/00 (2006.01)
CPC B23K 31/02 (2013.01) [B23K 9/0953 (2013.01); B25J 11/005 (2013.01)] 10 Claims
OG exemplary drawing
 
1. A bead appearance inspection device comprising:
an input unit configured to enter input data related to a welding bead of a workpiece produced by welding;
a preprocessing unit configured to perform a preprocessing of converting a shape of the welding bead into a predetermined shape on the input data; and
k inspection determination units, where k is an integer of 1 or more, that are equipped with k types of artificial intelligence, and that are configured to inspect and determine presence or absence of a welding defect of the welding bead based on processings of the k types of artificial intelligence targeting the input data on which the preprocessing is performed,
wherein when the shape of the welding bead is a curve shape, the preprocessing unit performs a planarization processing of making the shape of the welding bead into a shape that is more linear than the curve shape by moving a point on a curve of the curve shape in the input data as a target.