Welding equipment

The welding apparatus addresses layout constraints by using a rotating shaft and reduction gears to independently position electrodes, ensuring flexible and interference-free layout for improved welding operations.

JP7864252B1Active Publication Date: 2026-05-22MITSUBISHI MOTORS CORP +1
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Patent Information

Authority / Receiving Office
JP · JP
Patent Type
Patents
Current Assignee / Owner
MITSUBISHI MOTORS CORP
Filing Date
2024-09-02
Publication Date
2026-05-22

AI Technical Summary

Technical Problem

Existing welding apparatuses face limitations in layout flexibility due to interference between drive units and surrounding structures, constraining the placement and shape of workpieces and welding guns.

Method used

A welding apparatus with a rotating shaft and reduction gears that allow the electrodes to be positioned independently, using a drive unit coaxially with the rotating shaft to rotate the electrodes in opposite directions, ensuring equal spacing and freedom in layout.

Benefits of technology

Ensures a high degree of freedom in the layout of the welding apparatus, allowing for flexible positioning of electrodes without interference, thereby enhancing welding capabilities.

✦ Generated by Eureka AI based on patent content.

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Abstract

The welding apparatus (1) comprises a drive unit (4S), a first reducer (70), a second reducer (80), a first welding gun (21), and a second welding gun (22). The drive unit (4S) is arranged coaxially with the rotating shaft (4R) and rotates the rotating shaft (4R). The first reducer (70) is arranged coaxially with the rotating shaft (4R) and, with the second output unit (72) fixed in a non-rotatable state, reduces the rotational power by a first reduction ratio to rotate the outer circumferential surface (73) of the first output unit (71) in the opposite direction to the rotation of the rotating shaft (4R). The second reducer (80) is arranged coaxially with the rotating shaft (4R) and, with the third output unit (81) fixed to the first output unit (71), reduces the rotational power by a second reduction ratio to rotate the outer circumferential surface (83) of the fourth output unit (82). The first welding gun (21) is mounted on the outer surface (73) of the first output unit (71). The second welding gun (22) is mounted on the outer surface (83) of the fourth output unit (82).
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