The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 27, 2004
Filed:
Jan. 09, 2003
Frank Garza, Rochester Hills, MI (US);
Jason Tsai, Bloomfield Hills, MI (US);
Hadi Akeel, Vienna, VA (US);
Brad Niederquell, Troy, MI (US);
FANUC Robotics North America, Inc., Rochester Hills, MI (US);
Abstract
A servo spot welding control system and method to efficiently weld a pair of workpieces together. The system includes a robot movable about the workpieces, a weld gun, servomotors, a transformer, and a controller. The weld gun is mounted on the robot and includes at least two pairs of electrodes. Each pair of electrodes includes a stationary electrode and a moveable electrode. The servomotors are operatively connected to the movable electrodes. The controller actuates the robot to move the robot into position. The controller also actuates the servomotors to clamp the workpieces and to selectively sequence electric current from the transformer to form multiple spot welds on the workpieces.