公开(公告)号：US11498157B2

公开(公告)日：2022-11-15

申请号：US16778870

申请日：2020-01-31

Applicant: GM Global Technology Operations LLC

Inventor： Pei-Chung Wang ,  Spyros P Mellas ,  Miguel A Saez ,  John P Spicer

IPC: B23K26/08 ,  B23K9/095 ,  B23K31/12 ,  B23K9/127

Abstract: A system and method of enhanced automated welding of a first workpiece and a second workpiece are provided. The method comprises providing a system for intelligent robot-based welding of the first workpiece and the second workpiece. The method further comprises determining a geometrical location of the first workpiece and the second workpiece to be welded at a welding sequence based a predetermined process variable. The method further comprises adjusting the predetermined process variable based on the geometrical location of the first and second workpieces to define an actual process variable. The method further comprises welding a first portion of the first and second workpieces with the actual process variable to define a first welded portion. The method further comprises determining a weld quality of the first welded portion.

公开(公告)号：US20210237212A1

公开(公告)日：2021-08-05

申请号：US16778861

申请日：2020-01-31

Applicant: GM Global Technology Operations LLC

Inventor： Miguel A Saez ,  Debejyo Chakraborty ,  Richard J. Skurkis ,  John P. Spicer ,  Wayne Cai

IPC: B23K37/04 ,  B23K31/00 ,  B23K37/00

Abstract: A welding block for a welding system secures together first and second components of a workpiece for a motor vehicle to reduce distortion of the first and second components during a welding process. The welding block includes a jig mechanism that has a proximal surface for receiving a load from an arm of the welding system. The jig mechanism further includes a distal surface for engaging the first component and securing the first and second components to one another during the welding process. The jig mechanism defines a passage, such that heat flows from the distal surface to a coolant flowing through the passage. The welding block further includes a sensor coupled to the jig mechanism for detecting a measured variable associated with at least one of the first and second components.

公开(公告)号：US11167381B2

公开(公告)日：2021-11-09

申请号：US16778885

申请日：2020-01-31

Applicant: GM Global Technology Operations LLC

Inventor： Miguel A Saez ,  John P. Spicer ,  Spyros P Mellas ,  Richard J Skurkis ,  Pei-chung Wang ,  James W Wells ,  Wayne Cai ,  Dooil Hwang

IPC: B23K37/04 ,  G05B19/402 ,  B23K101/00

Abstract: A clamp system and method for measurement and control of welding a first substrate to a second substrate is provided. The system comprises a squeeze clamp having to a first end and a second end. The system further comprises a motor connected to the squeeze clamp such that the first and second ends are movable to clamp the first substrate to the second substrate. The system further comprises at least one of an electromagnetic flux sensor, a current sensor, a position sensor, and a gap sensor disposed on one of the first and second ends for determining a first measured variable between the first and second substrates. The system further comprises a controller to control the motor to clamp the first substrate to the second substrate based on the first measured variable. The controller is in communication with the electromagnetic flux sensor, the current sensor, and the gap sensor.

公开(公告)号：US20210237200A1

公开(公告)日：2021-08-05

申请号：US16778870

申请日：2020-01-31

Applicant: GM Global Technology Operations LLC

Inventor： Pei-chung Wang ,  Spyros P. Mellas ,  Miguel A Saez ,  John P. Spicer

IPC: B23K26/08 ,  B23K9/095 ,  B23K9/127 ,  B23K31/12

Abstract: A system and method of enhanced automated welding of a first workpiece and a second workpiece are provided. The method comprises providing a system for intelligent robot-based welding of the first workpiece and the second workpiece. The method further comprises determining a geometrical location of the first workpiece and the second workpiece to be welded at a welding sequence based a predetermined process variable. The method further comprises adjusting the predetermined process variable based on the geometrical location of the first and second workpieces to define an actual process variable. The method further comprises welding a first portion of the first and second workpieces with the actual process variable to define a first welded portion. The method further comprises determining a weld quality of the first welded portion.