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Stud welding gun with stud detection system

A technology of studs and detection circuits, which is applied in the direction of welding equipment, measuring electricity, measuring devices, etc., and can solve problems such as delayed setting of studs

Inactive Publication Date: 2004-10-20
NEWFREY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004]In any of the above situations, where the stud is knocked out and the process must be repeated to set the stud in place, or the collet is inadvertently welded to the workpiece Either way, additional time and cost are incurred due to delays in setting the studs or the need for rework to remove the welded collets from the workpiece

Method used

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  • Stud welding gun with stud detection system
  • Stud welding gun with stud detection system
  • Stud welding gun with stud detection system

Examples

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Embodiment Construction

[0025] The preferred embodiments described below are merely exemplary in nature and do not limit the invention and its applications or uses.

[0026] figure 1 A stud welding gun representing a preferred embodiment of the present invention. The stud inspection system 10 includes a stud welding gun 12 that holds a stud 14 in place for welding to a workpiece 16 . The workpiece 16 can be imagined to be a thin sheet steel automotive panel. Each stud 14 is supplied to the stud welding gun 12 via a stud supply feeder 18 and a pneumatic tube 20 . The welding tool process control unit 22 is connected to the stud welding gun 12 via a welding current supply line 24 . The welding tool process control device 22 is electrically connected on the supply side to the process control component 26 via a control line 28 . The process control component 26 also includes a welding current source 27 . The process control component 26 is connected to the conductive member 30 of the stud welding gu...

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Abstract

A stud welding gun including an engaged conductive path indicating that a stud is properly positioned for welding. Another aspect includes a conductivity detection circuit that turns on when a stud is present. In yet another aspect there is provided a method for operating a stud welding gun that includes making a conductive path to permit a welding operation. Yet another aspect provides a method of determining the presence of a stud by passing a current from a conductivity detection circuit through a conductive path made by the stud.

Description

technical field [0001] The present invention relates generally to stud welding and more particularly to a stud welding gun and method of using a stud welding gun that secures a stud in a welding position prior to commencing a welding sequence. Background technique [0002] Stud welding guns are used to weld studs of various sizes to different workpieces to further attach attached items to the workpieces. Stud welding is widely used in the automotive industry to secure multiple studs for further attachment of trim parts to the vehicle. Furthermore, stud welding guns can be used not only in manual systems but also in automatic systems. Studs used in stud welding guns consist of a shaft or body, usually with smooth or fastening threaded surfaces, and are made of electrically conductive material. A welding current is passed through the stud, creating an arc to weld the stud to a conductive surface (ie, workpiece). [0003] Typically a stud welding gun operates by feeding an i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K9/20
CPCB23K9/205B23K9/20
Inventor R·R·帕可R·L·伊伯林
Owner NEWFREY
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