Welding gun cylinder and welding gun cylinder system

Abstract

The invention discloses a welding gun cylinder. The welding gun cylinder comprises a first cylinder body and a second cylinder body. The first cylinder body comprises a first cylinder barrel, a first piston and a first piston rod. The second cylinder body comprises a second cylinder barrel, a second piston and a second piston rod. A first middle end cover is arranged between the first cylinder barrel and the second cylinder barrel. The second piston rod penetrates the first middle end cover and is connected with the first piston rod. A built-in cylinder is slidably arranged in the second cylinder barrel. The second piston is slidably arranged in the built-in cylinder. A first ventilation pipeline is arranged in the second piston rod. A rear end opening of the first ventilation pipeline is located between the second piston and a built-in cylinder rear end cover of the built-in cylinder. A front end opening of the first ventilation pipeline is located between the first piston and the first middle end cover. According to the welding gun cylinder, it is not necessary to supply air to the built-in cylinder separately, and the structure is simplified; when air enters a second air exchange opening, the double-acting force is provided, so that the length of the cylinder is reduced, and the size of the cylinder is reduced. The invention discloses a welding gun cylinder system and an operation method of the welding gun cylinder system.

Description

technical field [0001] The invention relates to the technical field of cylinder components used in welding torches, in particular to a welding torch cylinder and a welding torch cylinder system. Background technique [0002] The welding torch cylinder is a cylinder used on the welding torch, which pushes the gun arm of the welding torch to move or swing through the action of the cylinder to realize welding. [0003] In the prior art, the Chinese patent application document with application number 201210195236.6 discloses a multi-stage push cylinder. The Chinese patent application document with application number 201110309380.3 discloses a four-chamber cylinder with two linear strokes. [0004] The above two types of cylinders both adopt the structure of inner and outer cylinders nested together, which shortens the overall length of ordinary double-stroke serial cylinders, but both require separate air supply to the built-in cylinders. And its structure is complex, difficul...

AI Technical Summary

Problems solved by technology

[0004] Both of the above two cylinders adopt the structure of the inner and outer cylinders interlocking to realize the shortening of the overall length of the ordinary double-stroke serial cylinder, but both require separate air supply to the built-in cylinder

And its structure is complex, difficult to manufacture and prone to air leakage, resulting in poor operation

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