Automatic welding device

A technology of automatic welding and welding mechanism, applied in the direction of auxiliary equipment, welding equipment, auxiliary welding equipment, etc., to achieve the effect of overcoming adverse effects, reducing production costs, and getting rid of manual operations

Active Publication Date: 2012-06-13
张旭
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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, the embodiment of the present invention provides an automatic welding device, which includes

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Embodiment Construction

[0048] In order to make the object, technical solution and advantages of the present invention clearer, the implementation manner of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0049] Design principle of the present invention is as follows:

[0050]Generally, the parts are assembled (pre-assembled) in cold state. When multiple parts are assembled on one main part, they need to be welded one by one. During the welding process, the temperature of the main part will gradually increase. , the thermal deformation will also gradually develop, the development of thermal deformation will make the assembly position shift, and the welding position will inevitably shift accordingly. When this change exceeds the welding allowable error, it will lead to welding failure or the position of the welded part exceeds Difference. For example, on a strip-shaped main part, it is required to extend the direction, install the speci...

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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...

Claims

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Application Information

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IPC IPC(8): B23K37/02B23K37/04B23K37/00
Inventor 张旭于有军王明灯任艳超
Owner 张旭
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