Auxiliary mechanism for welding of air duct pipe

Abstract

The invention discloses an auxiliary mechanism for welding of an air duct pipe. The auxiliary mechanism for welding of the air duct pipe comprises a base and a mounting frame fixedly arranged on the top end face of the base. A first rotating groove penetrating through the mounting frame in the front-back direction is formed in the mounting frame. A rotating disc is rotatably arranged in the firstrotating groove through a bearing. An outer gear ring is arranged on the outer circle of the rotating disc. An empty groove penetrating through the rotating disc in the front-back direction is formedin the inner circle of the rotating disc. The air duct pipe is arranged in the empty groove. A plurality of sets of hydraulic devices which are matched with the air duct pipe in an abutting mode are annularly arranged in the inner wall of the empty groove. A mounting cavity is formed in the rotating disc. A box is fixedly arranged in the mounting cavity. An inner cavity is formed in the box. A hydraulic plate is slidably arranged in the inner cavity in a sealed mode. A first spiral hole is formed in the hydraulic plate, and a first spiral rod is mounted in the first spiral hole in a matched mode.

Description

technical field [0001] The invention relates to the technical field of air duct pipe welding, in particular to an auxiliary mechanism for air duct pipe welding. Background technique [0002] The air duct pipe is an important part of the range hood. The air duct pipe needs to be welded during the welding process. Before welding, the air duct pipe needs to be fixed by a positioning mechanism. The traditional positioning mechanism is generally tightened by bolts. Fixing, this kind of fixing method is extremely complicated and laborious to operate, and it is extremely inconvenient to use. There are also many mechanical positioning mechanisms in the existing market, but after fixing the air duct pipe, it is difficult to realize the circumferential rotation adjustment, and give the air duct pipe The welding of welding brings great stability, and there are relatively large defects, which need to be improved. Contents of the invention [0003] Aiming at the deficiencies of the ...

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Problems solved by technology

[0002] The air duct pipe is an important part of the range hood. The air duct pipe needs to be welded during the welding process. Before welding, the air duct pipe needs to be fixed by a positioning mechanism. The traditional positioning mechanism is generally tightened by bolts. Fixing, this kind of fixing method is extremely complicated and laborious to operate, and it is extremely inconvenient to use. There are also many mechanical positioning mechanisms in the existing market, but after fixing the air duct pipe, it is difficult to realize the circumferential rotation adjustment, and give the air duct pipe The welding welding brings great stability, and there are relatively large defects, which need to be improved

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