Multi-station impeller laser welding machine

Abstract

The invention belongs to the technical field of laser welding and particularly relates to a multi-station impeller laser welding machine. The multi-station impeller laser welding machine comprises a rack which is internally provided with a laser welding robot, a laser device and a clamp assembly; the clamp assembly comprises a first rotary table, a slewing gear is installed below the first rotary table, and the first rotary table is provided with two impeller clamping mechanisms; and each impeller clamping mechanism comprises a supporting disc, a positioning piece arranged on the corresponding supporting disc and at least two pressing assemblies, and the pressing assemblies and the positioning pieces are arranged in an equidistant mode. The double-station or multi-station cooperation effect is achieved, one impeller clamping mechanism is enabled to be in laser welding, and other impeller clamping mechanisms are used for replacing workpieces; the device working time efficiency is improved, the time for clamping and tool smelting equipment replacing is reduced, and the device working time efficiency can be better improved through double stations or multiple stations; and a positioning mold is matched with a shaft hole between impellers to achieve impeller positioning.

Description

technical field [0001] The invention belongs to the technical field of laser welding, and in particular relates to a multi-station impeller laser welding machine. Background technique [0002] The impeller is an important part of the water pump. Its size and accuracy directly affect the hydraulic performance of the water pump; there are two main structural forms of the stainless steel impeller: 1. Open impeller; 2. Closed impeller. Due to its high efficiency, the closed impeller is widely used in high-efficiency centrifugal pumps. [0003] The stainless steel closed impeller is composed of three parts: the front cover, the rear cover and the blades. The traditional process is generally made of SUS304 precision casting. Some parts with small outlet size and thin wall thickness are difficult to cast, resulting in high manufacturing cost and low production efficiency. The impeller is currently made of stainless steel plate through cutting, stamping, stretching, and then weldi...

AI Technical Summary

Problems solved by technology

[0006] The existing laser welding machines have the following problems: (1) It takes time to install and replace the tooling, so that the laser welding process will be interrupted; (2) There is no positioning structure, only by pressing the outer circumference of the impeller To achieve fixation, during the welding process, there may be offsets that lead to inaccurate welding positions, resulting in a relatively high repair rate and failure rate of the impeller

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