An operation and maintenance robot for the body-in-white side welding production line

Abstract

The invention discloses an operation and maintenance robot for a body-in-white sideways welding production line, and relates to the technical field of vehicle body welding equipment. It includes a base, a base plate, a rotating mechanism, a maintenance mechanism and a conveying mechanism. An assembly box is fixed at the upper end of the base. A PLC controller and air suction equipment are installed inside the assembly box. By arranging a rotating mechanism and a maintenance mechanism, the present invention prevents the molten welding rod or the material to be welded from cooling and sticking to the electrode. At the same time, the welding smoke generated by welding can be discharged in a tracking manner, and the small particles generated when the cleaning brush cleans the electrode Large-scale waste can also be removed through the above path, reducing the accumulation of large-volume solid waste; while removing welding fumes, the equipment itself can also achieve a self-cleaning effect; by setting up a conveying mechanism, it is possible to set up operation on one side It only requires a dimensional robot, which reduces cost investment. It also enables effective welding of bodies in white with different heights and widths, making it more versatile.

Description

technical field [0001] The invention relates to the technical field of body welding equipment, in particular to an operation and maintenance robot for a side welding production line of a body in white. Background technique [0002] At present, when welding the body in white, the side wall and the periphery of the floor door opening, the side wall and the front windshield periphery, the side wall and the rear of the top cover, the side wall and the rear wall column, the top cover and the rear wall and other parts need to be welded. Therefore, there are many solder joints. In the existing welding production line technology, automatic welding operation and maintenance robots have been widely used. When working, the welding rod is melted by the high-temperature arc generated by the instantaneous thermal fusion between the two electrodes. The above material is welded material, in this way to achieve the purpose of welding. [0003] However, in the long-term processing and produc...

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Problems solved by technology

[0003] However, in the long-term processing and production process, it is found that the following disadvantages still exist in the prior art: 1. The self-cleaning effect cannot be realized. In order to ensure the size of the nugget and the strength of the solder joints, the welding time and welding current must be within a certain range They can complement each other. Due to the performance and thickness of the selected metal of some body-in-white, small current and long-term welding must be used. However, due to the long local welding time, the molten electrode or welded material It will stick to the electrode. When welding the next solder joint, the current conduction rate becomes low and a stronger current is required. After the welding is completed, the cooled material to be welded sticks to the electrode and is difficult to remove. Although there is a hydraulic pipe in the prior art, and the internal hydraulic oil pushes the brush to clean the electrode, but this technology cannot achieve the purpose of removing welding fumes at the same time, and the inside of the hydraulic pipe cannot be self-cleaning, and the hydraulic pressure needs to be replaced frequently. 2. The way of absorbing welding fumes in the prior art is to install a covered dust hood above the welding section, and then use a fan to suck it from the smoke outlet of the dust hood, but this method consumes a lot of energy, and Due to the long production line and many welding spots in the body-in-white welding section, some welding fumes cannot be effectively removed; 3. In order to complete welding on both sides of the body-in-white on one processing line, it is necessary The corresponding operation and maintenance welding robots are installed on both sides, but this processing layout undoubtedly requires a large degree of cost input, resulting in unnecessary waste; in addition, there is also the disadvantage of a single processing model. After one model, the welding production line cannot continue to be used

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