A mobile knapsack spot welding machine

Abstract

The invention discloses a mobile backpack spot welding machine, which includes a clamping spot welding mechanism and a protective fixing mechanism. The protective fixing mechanism includes an arc-shaped plate, and a pair of H-shaped frames are fixed on the outer arc surface of the arc-shaped plate. The upper part of a pair of H-shaped frames is fixed with an upper connecting ring, wherein, the outer wall of one of the H-shaped frames is fixed with a movable rod seat, and the bottoms of both sides of the arc-shaped plate are fixed with side connecting rings. A strap for binding to the body is fixed between the side connecting ring and the two upper connecting rings. In the present invention, the L-shaped rod of the control mechanism is connected to the inside of the movable rod seat by rotating, and a brake handle is fixed at the end of the L-shaped rod away from the movable rod seat, and the pulling end of the brake handle is passed through the rope tube and the L rod through the steel wire rope. The type tube is fixedly connected with the traction ring, so that the spot welding machine adopts a front-loading structure, which is convenient for the operator to carry on the back. At the same time, the direction of the lower clamping arm and the upper clamping arm is regulated by the control mechanism, so that different angles can be achieved. of welding.

Description

technical field [0001] The invention relates to the technical field of spot welding machines, in particular to a mobile knapsack spot welding machine. Background technique [0002] The spot welding machine adopts the principle of double-sided double-point overcurrent welding. When working, two electrodes pressurize the workpiece so that the two layers of metal form a certain contact resistance under the pressure of the two electrodes, and the welding current flows from one electrode to the other. Instantaneous thermal fusion is formed at the two contact resistance points, and the welding current flows from the other electrode along the two workpieces to this electrode to form a loop, and will not damage the internal structure of the workpiece to be welded. [0003] During the welding process of the spot welding machine, the welding part needs to be clamped by the hydraulic cylinder, so as to ensure the connection strength of the welding part. Therefore, the overall quality o...

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Problems solved by technology

[0003] During the welding process of the spot welding machine, the welding part needs to be clamped by the hydraulic cylinder, so as to ensure the connection strength of the welding part. Therefore, the overall quality of the spot welding machine is relatively heavy, and it usually adopts a fixed structure. Components are placed in the designated station for welding, and some welding parts are heavy and difficult to place on the welding station of the spot welder for welding, so the hand-held spot welder came into being, but the hand-held spot welder Compared with other types of welding machines, the overall quality is large in structure, inconvenient for long-term operation, and the welding angle is limited

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