| 摘要 |
The spot welding tool is of pliers type and has a pair of crossed drill rod handles pivotally connected together. A solid jaw is carried by one drill rod and a movable jaw pivotally connected to the other drill rod. A pair of opposed copper electrodes are carried by the jaws respectively with means for adjusting the gap between the ends of the electrodes. A pin of substantial diameter is mounted on the solid jaw snugly engaging a corresponding bore in the movable jaw. A spring is disposed around the pin between said jaws yieldably tending to separate the jaws, whereby when the handles are squeezed together the movable jaw will move in parallel relation to the solid jaw allowing the electrodes to close over the work evenly.
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