Adaptable servo-control system for force/position actuation

a servo control system and force/position technology, applied in the direction of resistive welding apparatus, welding electric supply, welding monitoring devices, etc., can solve the problems of complex welding system, requiring different replacement parts, and costing a tremendous amount of money and tim
US20050077855A1Inactive Publication Date: 2005-04-14TOL O MATIC
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Patent Information

Authority / Receiving Office
US · United States
Patent Type
Applications(United States)
Current Assignee / Owner
TOL O MATIC
Publication Date
2005-04-14
Estimated Expiration
Not applicable · inactive patent

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Abstract

An adaptable, servo-control system for force / position actuation generally includes an electric linear actuator and a controller. The controller interfaces with the electric linear actuator and with a number of I / O signals that are independent from the electric linear actuator. The controller interface to the independent I / O signals is transparent to the manner in which the I / O signals are produced. Rather the controller simply looks for the status of the I / O that is preferably received into the controller by hard-wiring or field bus I / O messaging such as from a industrial robot or programmable logic controller. The adaptable servo-control system is particularly suited to resistance weld systems wherein the electric linear actuator can replace the pneumatic actuator providing position and force actuation of the weld tip of the welding gun.
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Description

CLAIM TO PRIORITY

[0001] This application is a continuation of U.S. patent application Ser. No. 10 / 274,506, filed Oct. 18, 2002, entitled “ADAPTABLE SERVO-CONTROL SYSTEM FOR FORCE / POSITION ACTUATION,” the disclosure of which is hereby incorporated in its entirety by reference.FIELD OF THE INVENTION

[0002] The present invention is related to weld motion controllers and, more particularly, to an electric servo-control system for welding that has commonality from robot-to-robot and robot-to-hard-tool whether within a stand alone application or, new or retrofit robotic application. BACKGROUND OF THE INVENTION

[0003] Resistance welding is a group of welding processes in which the joining of metal is produced by the heat obtained from resistance of the work to the electric current, in a circuit of which the work is a part, and by the application of pressure. The three factors involved in making a resistance weld are the amount of current that passes through the work, the pressure that the...

Claims

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