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Spot welding machine

A spot welding machine and stand technology, applied in welding equipment, resistance welding equipment, metal processing equipment, etc., can solve the problems of frequent adjustment, easy wear of the lower electrode, large randomness, etc., so as to avoid quality accidents and improve production. Efficiency and the effect of ensuring spot welding quality

Active Publication Date: 2011-07-06
NINGBO MINTH AUTOMOTIVE PARTS RES&DEV CO LTD
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Problems solved by technology

[0003] In the process of realizing the above spot welding, it is found that the lower electrode of the spot welding machine is easy to wear, which leads to virtual welding in the spot welding process, which directly affects the quality of the product after welding
Although this defect can adjust the height of the lower electrode by adjusting the lower grip bar, it requires frequent adjustments, and it is extremely inconvenient to adjust, and it is not easy to adjust to a suitable height
Moreover, this adjustment method is completely adjusted by people, and the randomness is large, so there is still a hidden danger of quality accidents

Method used

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Embodiment Construction

[0016] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0017] Such as Figure 1 to Figure 4 As shown, the spot welding machine of the present embodiment is used for welding the inner panel a and the outer panel b of the automobile door frame column. 13, wherein the fixed platform 11 is arranged on the machine base 1, and its middle part has a through hole opposite to the lower electrode 13; the lower electrode 13 is fixed on the machine base 1 of the spot welding machine through the lower handle 14, and the upper end is inserted into the In the through hole of the fixed platform; the upper electrode 12 and the upper grip rod 15 can move up and down above the fixed platform under the action of the driving source. Here, the machine base, workbench, driving source and upper and lower electrodes all adopt the structures in the existing common spot welding machine, which are all prior art, and will no...

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Abstract

The invention relates to a sot welding machine, which is improved on the basis of a conventional fixed platform, an upper electrode and a lower electrode. The sot welding machine comprises a table surface and a driving mechanism, wherein a work piece to be welded is placed on the table surface; the driving mechanism drives the table surface to lift and descend; the table surface is positioned between the fixed platform and the upper electrode; and a through hole opposite to the lower electrode is formed on the table surface. When the spot welding machine is used for spot welding, the descending of the table surface can be controlled by applying the upper electrode to the work piece to be welded; and when the work piece to be welded is contacted with the lower electrode for spot welding, the table surface stops descending as long as the upper electrode stops moving down. Therefore, by adopting the spot welding machine, compensation can be obtained automatically by the descending of thetable surface, so that production efficiency is improved greatly, the quality of spot welding is ensured, and a quality accident caused by human factors is avoided by a mode of adjusting the height of the lower electrode without a person; and the sot welding machine is characterized by simple structure, good generality and low modification cost.

Description

technical field [0001] The invention relates to a spot welding machine. Background technique [0002] Spot welding connection is a commonly used connection method between metal materials and metal materials. The usual spot welding operations are performed by spot welding machines. On the seat, the upper electrode and the upper handle can be lifted up and down under the action of the driving source, and the fixture of the workpiece to be welded is placed on the fixed platform of the spot welding machine. [0003] In the process of realizing the above-mentioned spot welding, it is found that the lower electrode of the spot welding machine is easy to wear and tear, which leads to false welding in the spot welding process, and then directly affects the quality of the product after welding. Although this defect can adjust the height of the lower electrode by adjusting the lower grip bar, it requires frequent adjustments, and it is extremely inconvenient to adjust, and it is not ...

Claims

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Application Information

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IPC IPC(8): B23K11/11B23K11/36
Inventor 王玉锋
Owner NINGBO MINTH AUTOMOTIVE PARTS RES&DEV CO LTD
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