公开(公告)号：US20240337604A1

公开(公告)日：2024-10-10

申请号：US18745134

申请日：2024-06-17

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Toru SAKAI ,  Masashi YOSHIDA ,  Michio SAKURAI ,  Daichi HIGASHI

IPC: G01N21/88 ,  B23K31/12 ,  B23K37/02 ,  G01N33/207 ,  G06T1/00 ,  G06T7/00 ,  G06T7/50 ,  G06V10/20 ,  G06V10/764

CPC classification number: G01N21/8851 ,  B23K31/125 ,  B23K37/0229 ,  G01N33/207 ,  G06T1/0014 ,  G06T7/0006 ,  G06T7/50 ,  G06V10/255 ,  G06V10/764 ,  G01N2021/8887 ,  G06T2207/20081 ,  G06T2207/30136 ,  G06T2207/30164 ,  G06V2201/06

Abstract: An appearance inspection apparatus includes a shape measurement unit configured to measure the three-dimensional shape of a weld and a data processor configured to process shape data acquired by the shape measurement unit. The data processor includes a shape data processor configured to correct a resolution of the shape data, a learning data set generator configured to generate a plurality of learning data sets by performing data augmentation on multiple pieces of sample shape data acquired in advance, a determination model generator configured to generate a determination model using the plurality of learning data sets, and a first determination unit configured to determine whether the shape of the weld is good or bad based on the shape data having the corrected resolution and the determination model.

公开(公告)号：US20210023655A1

公开(公告)日：2021-01-28

申请号：US17066854

申请日：2020-10-09

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Michio SAKURAI ,  Toru SAKAI ,  Kenta KUBOTA ,  Takashi URASHIMA ,  Daichi HIGASHI

IPC: B23K26/21 ,  B23K26/70 ,  B23K26/082

Abstract: Laser welding is performed while moving irradiation positions of a laser beam and a measurement beam in forward, rightward, rearward and leftward directions, and the penetration depth of a weld portion is measured during laser welding in each of the directions. Then, a direction in which a value smaller than a reference value is measured is determined to be an optical axis deviation direction, and a correction value is added to the values measured during the laser welding when the laser welding is performed in the optical axis deviation direction.

公开(公告)号：US20240337608A1

公开(公告)日：2024-10-10

申请号：US18745125

申请日：2024-06-17

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Toru SAKAI ,  Michio SAKURAI ,  Daichi HIGASHI

IPC: G01N21/95 ,  G01N21/88 ,  G01N33/207 ,  G06T7/00

CPC classification number: G01N21/9515 ,  G01N21/8851 ,  G01N33/207 ,  G06T7/0004 ,  G01N2201/101 ,  G06T2207/20081 ,  G06T2207/30136

Abstract: An appearance inspection apparatus includes a shape measurement unit configured to measure the three-dimensional shape of a weld and a data processor configured to process sample shape data and shape data acquired by the shape measurement unit. The data processor includes a first learning data set generator configured to generate a plurality of first learning data sets based on the sample shape data, a second learning data set generator configured to generate a plurality of second learning data sets based on the first learning data sets, a determination model generator configured to generate multiple types of determination models using the second learning data sets, and a first determination unit configured to determine whether the shape of the weld is good or bad based on the shape data and one of the determination models.