Abstract

A two-way welding gun includes a first welding tip or a second welding tip selected to be used depending on the shape of the flange of a vehicle body panel, which is an object for the spot welding, so that flanges of first vehicle body panels each including a shape matching the first welding tip are easily spot welded to each other using the first welding tip, and flanges of second vehicle body panels each including a shape different from the first welding tip but matching the second welding tip are easily spot welded to each other using the second welding tip.

IPC Classes  ?

• B23K 11/31 - Electrode holders
• B23K 11/11 - Spot welding

Abstract

A system for resistance spot welding control and a method thereof are disclosed. A system for resistance spot welding control and a method thereof are disclosed. A system for regulating welding parameters of a spot welding machine joining a plurality of panels according to an aspect of the present disclosure includes an ultrasonic sensor installed inside an electrode of a welding gun, applying a ultrasonic wave to a welding part of the panel, and detecting a reflected ultrasonic signal; an ultrasonic analyzer capable of creating ultrasonic analysis information by analyzing in real time the ultrasonic signal; and a welding controller receiving the ultrasonic analysis information from the ultrasonic analyzer, performing adaptive welding control with the welding parameters set based on information of the panel, and compensating in real time one or more welding parameters according to the received ultrasonic analysis information.

IPC Classes  ?

• B23K 11/25 - Monitoring devices
• B23K 11/11 - Spot welding

Abstract

A system for resistance spot welding control and a method thereof are disclosed. A system for regulating welding parameters of a spot welding machine joining a plurality of panels according to an aspect of the present disclosure includes an ultrasonic sensor installed inside an electrode of a welding gun, applying a ultrasonic wave to a welding part of the panel, and detecting a reflected ultrasonic signal; an ultrasonic analyzer capable of creating ultrasonic analysis information by analyzing in real time the ultrasonic signal; and a welding controller receiving the ultrasonic analysis information from the ultrasonic analyzer, performing adaptive welding control with the welding parameters set based on information of the panel, and compensating in real time one or more welding parameters according to the received ultrasonic analysis information.

IPC Classes  ?

• B23K 11/10 - Spot weldingStitch welding
• B23K 11/25 - Monitoring devices
• B23K 11/36 - Auxiliary equipment

Abstract

A resistance spot welding control system and a method therefor are disclosed. A system for welding parameter regulations of a resistance spot welding machine that bonds a plurality of panels, according to one embodiment of the present invention, comprises: an ultrasonic sensor, which is provided on an electrode of a welding gun, irradiates a welding part of panels with an ultrasonic wave, and measures a reflected ultrasonic signal; an ultrasonic analyzer, which analyzes the ultrasonic signal in real time so as to generate ultrasonic analysis information; and a welding controller, which receives the ultrasonic analysis information from the ultrasonic analyzer, performs adaptive welding control with welding parameters set on the basis of information of the panels, and compensates, in real time, one or more welding parameters according to the received ultrasonic analysis information.

IPC Classes  ?

• B23K 11/25 - Monitoring devices
• B23K 11/10 - Spot weldingStitch welding
• B23K 11/36 - Auxiliary equipment

Abstract

A no-indentation welding monitoring device may include a pressing force measuring device for measuring a pressing force for pressing a welding target of a welding tip of a welding gun, a voltage measuring device for measuring a voltage applied to the welding tip of the welding gun, and a monitor device for digitizing a welding quality by use of the pressing force and the voltage transmitted from the pressing force measuring device and the voltage measuring device.

IPC Classes  ?

• B23K 31/12 - Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by any single one of main groups relating to investigating the properties, e.g. the weldability, of materials
• B23K 11/11 - Spot welding
• B23K 11/25 - Monitoring devices

Abstract

A tip changer for a spot welding machine includes a first rotation body that has an opening capable of accommodating a welding tip and is capable of rotating around the opening; a second rotation body that is disposed concentrically with the first rotation body and is rotated relative to the first rotation body; and a plurality of nail pieces that are disposed at equal angular intervals along an imaginary circle of the rotation bodies, are swingably connected to the first rotation body by a first connection mechanism, are swingably connected to the second rotation body by a second connection mechanism on a more radially inner side of the second rotation body than the first connection mechanism, and include contact portions on a more radially inner side of the second rotation body than a second connection mechanism.

IPC Classes  ?

• B23K 11/30 - Features relating to electrodes
• B23K 37/02 - Carriages for supporting the welding or cutting element