Automatic welding device

Abstract

The invention discloses an automatic welding device, which belongs to the field of metal processing and comprises a frame, a displacement sensor, a traveling mechanism, a clamping mechanism, a position sensor, an adaptive tool, a welding mechanism and a numeral control system, wherein mechanisms, a main part and auxiliary parts are installed on the frame, one end of the main part is fixed on the frame, and the other end of the main part is arranged along the direction of welding thermal deformation and is in the free state. The adaptive tool comprises an elastic body and a deformation servo mechanism, wherein the elastic body is arranged along the direction of the main part, and the elastic deformation curve of the elastic body and an actual thermal deformation characteristic curve of the main part are consistent. The numeral control system is connected with each mechanism and controls the motions of the mechanisms. The automatic welding device can effectively overcome adverse influences of the thermal deformation on welding effects, improve welding position accuracy, get rid of manual operation, achieve automatic welding, improve production efficiency, reduce production cost and achieve low carbon and environmental protection.

Description

technical field [0001] The invention relates to a welding device, in particular to an automatic welding device. Background technique [0002] Almost all metals undergo thermal deformation during thermal processing. The form of thermal deformation is related to the processed material, processing method, temperature field distribution and other factors. [0003] As a kind of thermal processing, metal welding also has common and obvious thermal deformation. This kind of thermal deformation often affects the welding effect, resulting in dimensional changes after welding, and in severe cases, it will lead to out-of-tolerance or even material fracture. [0004] At present, automatic welding devices are usually used to weld metals. In order to reduce or avoid the influence of thermal deformation on welding, the methods of forced mechanical restraint and auxiliary cooling are mostly used. Although this method is useful for metals with small thermal expansion coefficients and high...

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Problems solved by technology

[0005] In order to effectively solve and adapt to the problem of welding thermal deformation of metals with a large thermal expansion coefficient, an embodiment of the present invention provides an automatic welding device, which includes a follower device that imitates the thermal deformation of metals, so that the automatic welding device can be suitable for metal welding The amount of thermal deformation in and adapt to the normal welding in the presence of the deformation

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