System for detecting weld nut orientation
First Claim
1. A system for confirming orientation of a weld nut relative to a component to which the weld nut is to be welded, the system comprising:
- a lower electrode;
a weld nut locating pin attached to said lower electrode;
an upper electrode having a recess formed therein for receiving fluid;
a fluid supply fluidly connected to said recess of said upper electrode; and
a fluid pressure switch fluidly connected to said recess of said upper electrode, said switch being movable to a closed position if a requisite amount of fluid pressure is detected.
1 Assignment
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Accused Products
Abstract
A weld gun system for detecting the orientation of a weld nut relative to the metallic component to which it is to be welded prior to welding is disclosed. The system includes a lower electrode having a weld location pin, an upper electrode having a central circular recess formed therein, a fluid supply fluidly connected to the central circular recess of the upper electrode, and a pressure switch also fluidly connected to the central circular recess of the upper electrode. Once the weld nut is captured between the electrodes the fluid flows from the fluid supply into the central circular recess of the upper electrode. If the weld nut is in proper orientation the fluid continues to flow to the pressure switch and the weld occurs. If the weld nut is not in proper orientation the fluid does not flow to the pressure switch but is instead vented from the central circular recess and the weld does not occur.
17 Citations
18 Claims
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1. A system for confirming orientation of a weld nut relative to a component to which the weld nut is to be welded, the system comprising:
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a lower electrode; a weld nut locating pin attached to said lower electrode; an upper electrode having a recess formed therein for receiving fluid; a fluid supply fluidly connected to said recess of said upper electrode; and a fluid pressure switch fluidly connected to said recess of said upper electrode, said switch being movable to a closed position if a requisite amount of fluid pressure is detected. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A system for confirming the correct orientation of a weld nut relative to a component to which the weld nut is to be welded, the system comprising:
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a lower electrode; a weld nut locating pin attached to said lower electrode; an upper electrode, said upper electrode having a central recess to loosely receive at least a portion of said weld nut locating pin; a fluid supply fluidly connected to said central recess of said upper electrode; and a pressure switch fluidly connected to said central recess of said upper electrode, whereby a fluid seal is formed between the weld nut and the upper electrode if the weld nut is in its correct orientation. - View Dependent Claims (9, 10, 11, 12, 13)
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14. A method for confirming orientation of a weld nut relative to a component to which the weld nut is to be welded, the method comprising:
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forming an apparatus having a lower electrode, a weld nut locating pin attached to said lower electrode, an upper electrode, said upper electrode having a central recess to receive at least a portion of said weld nut locating pin, a fluid supply fluidly connected to said central recess of said upper electrode, and a pressure switch fluidly connected to said central recess of said upper electrode placing the weld nut on said weld nut locating pin; placing said upper electrode into contact with the weld nut; and causing a fluid to flow from said fluid supply into said central recess of said upper electrode, whereby if the weld nut is properly oriented then fluid passes from the central recess to the pressure switch and whereby if the weld nut is not properly oriented then fluid passes between said upper electrode and the weld nut. - View Dependent Claims (15, 16, 17, 18)
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Specification