Two-phase non-uniform pre-reaction curved-surface fully non-destructive automobile body welding equipment

Abstract

The invention discloses two-phase non-uniform pre-reaction curved-surface fully non-destructive automobile body welding equipment. The equipment comprises a fixed base, a vehicle body transportation guide rail, an elastic pre-reverse pushing type curved memory alloy assembly type vacuum adsorption clamping device, a transfer conveying plate, a middle transfer lifting supporting mechanism, an atomization spraying type carbon dioxide capturing device, a multi-joint all-dimensional welding mechanical arm, a two-phase non-uniform gas-liquid mixing fully non-destructive gravity self-adjusting type blocking welding device, a shape restoring assembly, a capturing air pump, a capturing air suction cover, a capturing air exhaust elastic telescopic hose and a capturing air supply pipe. The invention belongs to the technical field of automobile body welding, and according to the two-phase non-uniform pre-reaction curved-surface fully non-destructive automobile body welding equipment, the full non-destructive welding process for workers and a vehicle body is realized, and the same automobile body transportation guide rail is used for stably clamping various types of automobile bodies.

Description

technical field [0001] The invention belongs to the technical field of automobile body welding, and specifically refers to two-phase non-uniform pre-reaction curved surface non-destructive automobile body welding equipment. Background technique [0002] Automobile body components are mainly made of cold-rolled steel stamping parts with good stamping and welding process, which are assembled and welded. The welding mostly adopts the production method of assembly line, with a high degree of mechanization and automation. A large number of special equipment and fixtures are used. The welding work More and more are completed by automatic welding machines and welding robots. The existing automobile body welding devices cannot carry out fixed transportation for different car bodies because the body transportation guide rails are fixed structures. One production line can only carry out one type of automobile model. Transmission welding processing is difficult to adapt to the welding ...

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Problems solved by technology

[0003] In order to solve the above-mentioned existing problems, the present invention provides a method that aims at the problem that the existing welding device is prone to splashing sparks and is highly dangerous, and creatively introduces the principle of local quality, the principle of physical parameter change and the principle of phase change into the welding of automobile body. In the technical field, uniform carbon dioxide is converted into gas-liquid two-phase carbon dioxide with uneven spraying settings, and the gas-liquid two-phase carbon dioxide is used to protect, cool down, suppress and isolate the sparks generated by welding, and combine traditional gas-phase carbon dioxide and liquid-phase carbon dioxide. According to the smothering effect of liquid carbon dioxide and the characteristics of absorbing a large amount of heat during phase change, the sparks generated during welding are cooled and suppressed, and the impact on the welding part when the outer layer of liquid carbon dioxide gasifies is blocked by preset high-temperature gas-phase carbon dioxide in the inner layer, Guarantee the welding temperature, which solves the problem that the existing technology is difficult to solve. The welding temperature must be high to ensure the quality of the welding part, but at the same time, it must not be high to avoid the sparks generated by welding from splashing and scalding the human body and the body, and it is necessary to weld and fix the body without letting it The contradictory technical problem of splashing sparks welding on the car body or on the human body has realized the non-destructive welding process of the staff and the car body in a true sense, and set up the atomization spray carbon dioxide capture device to realize the capture of carbon dioxide , aiming at the technical prejudice that it is difficult to fix different types of car bodies on the car body with irregular hollowed-out protrusions and the same car body transportation guide rail, through the combination of the pre-reaction principle, the surface principle and the dynamic characteristic principle, the curved shape memory alloy with the curved surface is connected Parts and vacuum adsorption technology are introduced into the field of automobile body welding and clamping technology, which solves the difficult technical problem in the prior art that the body needs to be clamped and cannot be clamped (clamping will easily affect welding). The elastic deformation pre-reversing components that are opposite to the gravity of the car body are set, and the assembled and spliced ​​vacuum suction cups that are connected at intervals and the curved shape-memory alloy connectors with curved surfaces realize the same car body transportation guide rail for various types of car bodies. Two-phase non-uniform pre-reaction curved surface non-destructive automobile body welding equipment with perfect matching and stable fixed clamping technology effect

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