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Positioning projection welding electrode

A technology for positioning protrusions and electrodes, which is applied in the field of automobile parts manufacturing and can solve problems such as misalignment of parts to be welded and nuts

Pending Publication Date: 2020-09-25
SHANDONG AOLIN CAR FITTINGS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a positioning projection welding electrode, which is used to solve the problem of misalignment between the parts to be welded and the nut during the projection welding process

Method used

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  • Positioning projection welding electrode
  • Positioning projection welding electrode
  • Positioning projection welding electrode

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Embodiment

[0037] Such as figure 1 , figure 2 and image 3 A positioning projection welding electrode shown includes an upper electrode 3 and a lower electrode 4, wherein as Figure 4 As shown, the lower electrode 4 includes a lower electrode base 5, an electrode connecting rod 6, a lower electrode rod 7 arranged in sequence from bottom to top, and an electrode positioning pin 8 arranged on the top of the lower electrode rod 7; the mounting hole on the part 2 to be installed And the mounting nuts 1 are sleeved on the electrode positioning pins 8 from bottom to top in sequence.

[0038] The top of the lower electrode rod 7 is provided with a mounting groove, and the lower end of the electrode positioning pin 8 is embedded in the mounting groove. The electrode positioning pin 8 includes a part fixing cylinder 801 and a bolt fixing cylinder 802 located on the top of the part fixing cylinder 801; The lower end of the fixing cylinder 801 is set in the installation groove, and the upper en...

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Abstract

The invention relates to a positioning projection welding electrode. The positioning projection welding electrode is used for welding a mounting nut to a part to be mounted and comprises an upper electrode and a lower electrode; the lower electrode comprises a lower electrode base, an electrode connecting rod, a lower electrode rod and an electrode positioning pin arranged at the top of the lowerelectrode rod which are sequentially arranged from bottom to top; and a mounting hole and the mounting nut on the part to be mounted are sequentially sleeved on the electrode positioning pin from bottom to top. Compared with the prior art, through a part fixing column body and a bolt fixing column body, mounting and positioning of the part to be mounted and the mounting nut are achieved conveniently, the problem of dislocation of the part to be mounted and the mounting nut is avoided, and the welding qualification rate is increased; in addition, the positioning pin is made of a KCF material, has the advantages of being high in insulation effect, good in heat resistance, high in production efficiency, excellent in toughness, abrasion resistance and fracture resistance and the like, and effectively solves the problems that an iron positioning pin is fast in abrasion, welding slag is likely to be generated, and a ceramic positioning pin is likely to be fractured.

Description

technical field [0001] The invention belongs to the technical field of automobile parts manufacturing, and relates to a positioning projection welding electrode. Background technique [0002] Many parts need to be installed on the car body, and the connection methods are mostly nuts and bolts, and most of the bolt connections are connected by projection welding bolts, but most of the projection welding bolts are welded to the body parts by fixed projection welding machines. The traditional projection welding method of projection welding bolts is to use the upper electrode and the lower electrode to carry out projection welding on a fixed projection welding machine. However, during the projection welding process, misalignment between the parts to be welded and the nut often occurs, resulting in qualified welding. The efficiency drops, resulting in rework or material waste, affecting production efficiency. [0003] Chinese patent CN201720632807.6 discloses a bolt projection w...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K11/30B23K11/14
CPCB23K11/14B23K11/3054
Inventor 邹帅宗艳倩
Owner SHANDONG AOLIN CAR FITTINGS
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