| 摘要 |
An automatic nut welding device is provided to prevent pores from being generated in a welded part and remove foreign materials between a nut and a panel by spraying air of high pressure on the welded part of the panel and the nut. An automatic nut welding device(10) comprises an upper welding electrode(110), a lower welding electrode(120), a nut rod(140) and a nut feeder(200). The upper welding electrode ascends and descends on the upper part of the main body(100). The lower welding electrode is fixed to the lower part of the upper welding electrode. The nut rod supplies nuts to the lower welding electrode. The nut feeder the nuts to the nut rod from the outside of the main body through a guide tube(210). In the lower welding electrode, an insertion groove, a through-part, and a slope groove. In the lower part of the lower welding electrode, a lower jig is formed. In the lower jig, a space part in which the groove is formed is formed inward from the upper part. Outside the space part, a receiving part is formed. The receiving part is protruded to the upper part. The receiving part is inserted into the insertion groove. An air supplying part is formed at the side of the lower jig.
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