Movable backpack spot welder

Abstract

The invention discloses a movable backpack spot welder comprising a clamping spot welding mechanism and a protective fixing mechanism; the protective fixing mechanism comprises an arc-shaped plate, apair of H-shaped frames are fixedly arranged on the outer arc surface of the arc-shaped plate, upper connecting rings are fixedly arranged on the upper parts of the pair of H-shaped frames, wherein amovable rod seat is fixed on the outer wall of one H-shaped frame, side connecting rings are fixedly arranged on the bottoms of two sides of the arc-shaped plate, and a binding belt for binding with the body is fixed between the two side connecting rings and the two upper connecting rings. According to the movable backpack spot welder, an L-shaped rod of a control mechanism is rotatably connectedto the inside of a movable rod seat, a brake handle is fixed at the end part, far away from the movable rod seat, of the L-shaped rod, a traction end of the brake handle penetrates through a rope pipeand an L-shaped pipe through a steel wire rope and then is fixedly connected with a traction ring, and the spot welder adopts a front-mounted backpack structure, so that operators can conveniently carry on backpack operation; and meanwhile, the control mechanism is used for regulating and controlling the directions of a lower clamping arm and an upper clamping arm, so that welding at different angles is performed.

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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