Circular seam welding tool of water pump cavity

Abstract

The invention discloses a circular seam welding tool for a water pump cavity. The tool is characterized by comprising a positioning central shaft, a short sleeve positioning piece, a long sleeve positioning piece and a locking and unlocking nut, the short sleeve positioning piece and the long sleeve positioning piece both sleeve the positioning central shaft, the long sleeve positioning piece is positioned above the short sleeve positioning piece, the locking and unlocking nut is screwed in the upper portion of the positioning central shaft, and the positioning central shaft is provided with alimiting and fixing area, a short sleeve sleeving area, a long sleeve sleeving area and a threaded area. The welding tool is simple in structure and concentrically installed, a large hole body, a flow deflector, an inner shell and a small hole body can be installed in the inner sides of short and long cavity sleeves at the same time, positioning is accurate, the parallelism degree is high, clamping is firm, and circular seams of a connecting area of the short and long cavity sleeves can be welded conveniently.

Description

technical field [0001] The invention relates to the field of water pump cavity welding tooling device, in particular to a water pump cavity circumferential seam welding tool. Background technique [0002] With more and more high-rise buildings, the demand for water supply pumps for high-rise buildings is also increasing. The short casing of the cavity, the large hole body, the deflector, the inner casing, the small hole body and the long casing of the cavity are the basic components of the pump. They are all installed inside the long and short sleeves of the cavity, and then the short sleeves, large holes, deflectors, inner shell, small holes and long sleeves of the cavity are positioned parallel and concentrically with each other through the fixture, and then the welding equipment The long sleeve of the cavity and the short sleeve of the cavity are welded with ring seams. At present, the common welding fixtures have the following problems in actual use: 1. The parallelism...

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Problems solved by technology

At present, the common welding fixtures have the following problems in actual use: 1. The parallelism of the common welding fixtures is poor, and it cannot ensure that the top surface of the short sleeve of the cavity is parallel to the bottom surface of the long sleeve of the cavity, so that the short sleeve of the cavity is parallel to the bottom surface of the cavity. The long sleeve of the body cannot be welded; 2. The concentricity of ordinary welding fixtures is poor, and it cannot ensure that the short sleeve of the cavity, the large hole body, the deflector, the inner shell, the small hole body and the long sleeve of the cavity remain concentric, and cannot be welded after welding. Install the transmission shaft so that the welded short casing, large hole body, deflector, inner shell, small hole body and long cavity casing cannot be used

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