Water tank welding device

Abstract

The invention relates to a water tank welding device. The water tank welding device comprises a middle clamping mechanism and two side clamping mechanisms with a same structure. The two side clampingmechanisms are used for clamping the upper half section and the lower half section of a water tank to be welded correspondingly and symmetrically arranged at the left end and the right end of a bottomplate. Each side clamping mechanism comprises an outer ring and a spring clamping device capable of transversely moving and pushing along with a first pushing air cylinder, wherein the outer ring isfixed to a first support, a spring sliding groove is formed in the inner wall of the outer ring, and the middle of the lower end of the first support is connected with an output shaft of the first pushing air cylinder. The middle clamping mechanism is used for clamping the middle section of the water tank to be welded and comprises an arc clamping device. The arc clamping device comprises an upperhalf ring and a lower half ring, wherein one end of the upper half ring and one end of the lower half ring are hinged through a hinge, the upper half ring and the lower half ring are in a round pipeshape after being closed, the inner diameter of the round pipe is matched with the outer diameter of the middle section, and the central axis of the round pipe is flush with the circle center of eachclosed arc plate of the two side clamping mechanisms. The coaxiality error of the three sections of the water tank is reduced, and the clamping time is saved.

Description

technical field [0001] The invention belongs to the technical field of water tank welding and processing, and in particular relates to a water tank welding device. Background technique [0002] The technical difficulty of water tank welding lies in the high coaxiality between the three sections during three-section welding. Otherwise, if the coaxiality is too low, the three sections will be staggered to produce sharp corners. According to the electrostatic skin effect, the All the static electricity will be concentrated at the sharp corners, making the sharp corners prone to electrochemical oxidation. During the use of the water tank, it is inevitable to generate static electricity, so the sharp corners are the first to rust, and the water tank will leak after long-term use. At present, there is no special tool for water tank welding. The welding of the water tank is basically to manually butt the three sections and then weld them. operation is more complex. And if the co...

AI Technical Summary

Problems solved by technology

During the use of the water tank, it is inevitable to generate static electricity, so the sharp corners are the first to rust, and the water tank will leak after long-term use

At present, there is no special tooling for water tank welding. The welding of the water tank is basically to manually butt the three sections and then weld them. operation is more complex

And if the coaxiality of the three sections is too poor, the appearance of the water tank will not be very good.

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