Special welding machine for air duct seam welding of energy-saving range hood

Abstract

The invention discloses a special seam welding machine for an air duct of an energy-saving range hood. The special seam welding machine for the air duct of the energy-saving range hood comprises a case, a pressing assembly and a rotary positioning assembly, wherein the case and the rotary positioning assembly are respectively arranged at both side parts of a supporting base; the pressing assembly is arranged on the case; the pressing assembly comprises an upper pressing mechanism and a lower pressing mechanism; the inner ends of the upper pressing mechanism and the lower pressing mechanism are respectively connected with an upper pressure block and a lower pressure block and control the upper pressure block and the lower pressure block to press and fix an air duct pipe to be subjected to seam welding; the rotary positioning assembly is arranged outside the air duct pipe and controls rotating upper seam welding wheel and lower seam welding wheel to carry out rotary welding on a gap of the air duct pipe. The special seam welding machine is simple, is convenient and rapid to operate, is provided with a limiting mechanism and has high welding accuracy.

Description

technical field [0001] The invention relates to a welding device for an air duct of a range hood, in particular to an energy-saving special seam welding machine for an air duct of a range hood. Background technique [0002] Range hood, also known as range hood, is a kitchen appliance that purifies the kitchen environment. It is installed above the cooker hood in the kitchen. It can quickly take away the waste burned by the stove and the oil fume harmful to the human body produced during the cooking process, and discharge it to the outside, reduce pollution, purify the air, and have the safety guarantee function of anti-virus and explosion-proof. The air duct is an indispensable part of the range hood. The air duct is generally formed by welding several straight pipe bodies. This type of welding belongs to the arc welding process. When welding, the welding device needs to be welded along the circumference of the straight pipe body. arc welding, the existing welding device ha...

AI Technical Summary

Problems solved by technology

The air duct is an indispensable part of the range hood. The air duct is generally formed by welding several straight pipe bodies. This type of welding belongs to the arc welding process. When welding, the welding device needs to be welded along the circumference of the straight pipe body. arc welding, the existing welding device has a complex structure and difficult operation, and the welding is that the air duct body is not fixed firmly and is prone to swing, which affects the welding accuracy

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