Fixed-length welding method of connection port of blower shell

Abstract

The invention discloses a fixed-length welding method of a connection port of a blower shell. The fixed-length welding method comprises the following steps: a, mounting a flat pushing device; b, mounting a sliding device; c, mounting a fixed-length adjustment device; d, adjusting a distance between two clamp plates; e, mounting first material plates; f, welding a second material plate between thefirst material plates; and g, coating protective paint. According to the fixed-length welding method disclosed by the invention, a distance between the inner side surfaces of the two clamp plates canbe adjusted, so that the distance between the inner side surfaces of the two clamp plates is external width of the connecting port of the blower shell, and the size of the connecting port of the blower shell is strictly controlled, and thus, deviation between the size of the connecting port of the blower shell and an opening of the blower shell is reduced; moreover, the arranged positions of the two clamp plates are not changed in a welding process, and the connecting port of each blower shell is not needed to be positioned again; and through mutual cooperation of a positioning device, the clamp plates and a limiting fixation device, positioning of the connecting port of the blower shell is carried out, and therefore, the fixed-length welding method disclosed by the invention has the advantages of high manufacturing efficiency and low manufacturing cost, and is suitable for batch production.

Description

technical field [0001] The invention belongs to the technical field of integrated stoves, and in particular relates to a fixed-length welding method for a connection port of a fan casing. Background technique [0002] Integrated cooker is a kitchen appliance that integrates multiple functions such as range hood, gas stove, disinfection cabinet, storage cabinet, etc. It has the advantages of saving space, good range fume extraction effect, energy saving, low consumption and environmental protection. The oil absorption rate of general integrated cookers reaches 95%, and the higher the oil fume absorption rate, the better the quality. The integrated cooker uses the principle of micro-aerodynamics, and adopts the principle of deep well bottom row or side suction bottom row, and the bottom exhaust air generates a fluid negative pressure area, so that the oil fume can be sucked downward like magic, and the oil fume can no longer be seen rising everywhere. phenomenon, the oil fume...

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Problems solved by technology

However, there is a deviation between the size of the connection port of the fan casing obtained and the opening of the fan casing, so that there is a gap between the connection port and the opening of the fan casing, which

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