The production process of the positioning rib of the stator core of the hydroelectric generator

Abstract

The present invention is a production process for the positioning rib of the stator core of a hydraulic generator, which includes the following steps: put the raw materials into storage for inspection of appearance, size and chemical composition, and cut the qualified raw materials into individual workpieces according to the production requirements. One end is fully welded on the clamp handle by an electric welding machine; after annealing treatment, phosphating and saponification treatment, workpiece drawing, product performance inspection, workpiece product alignment, and finally the surface of the aligned workpiece product is cleaned, coated with anti-rust oil and Packaging; the invention adopts hydraulic drawing method, which has high production efficiency, low processing cost, high processing precision, good consistency of workpiece size, and short assembly time of the unit. It is mainly used in the production and manufacture of stator core positioning ribs of hydraulic generators.

Description

technical field [0001] The invention relates to the technical field of production technology of parts and components of power generation equipment, in particular to a production technology method for positioning ribs of stator cores of hydraulic generators. Background technique [0002] The positioning rib is an indispensable part in the stator of the generator, and its production accuracy is high. At present, the production of the positioning rib in China is generally carried out by machine tool cutting, and the machining accuracy often cannot meet the requirements well. There is also Directly imported from abroad, but its import cost is high, which virtually increases its operating cost for the enterprise. Therefore, it is necessary to study a positioning rib production method that can not only ensure the production and processing accuracy, but also effectively reduce its production cost. of. [0003] In the past, the machine tool cutting process was used to produce posit...

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Problems solved by technology

[0002] The positioning rib is an indispensable part in the stator of the generator, and its production accuracy is high. At present, the production of the positioning rib in China is generally carried out by machine tool cutting, and the machining accuracy often cannot meet the requirements well. There is also Directly imported from abroad, but its import cost is high, which virtually increases its operating cost for the enterprise. Therefore, it is necessary to study a positioning rib production method that can not only ensure the production and processing accuracy, but also effectively reduce its production cost. of

[0003] In the past, the machine tool cutting process was used to produce positioning ribs, the material loss was large, and the equipment requirements during the processing were high. The requirements are very high. Every time a geometric surface is processed, it is necessary to re-clamp and correct, and replace different tools. The processing efficiency is low, the processing deformation is large, and the processing size is difficult to ensure consistency. At the same time, the technical level of machine tool operators is high.

[0004] At present, the hydraulic drawing machine is less used in the drawing of metal profiles, and now a chain-type drawing machine is mostly used. Compared with the hydraulic drawing machine, the chain-type drawing machine has an advantage in drawing speed , but in contrast, the stability is poor, the impact force is large, the product accuracy is poor, and the profile with high processing accuracy is difficult to meet the requirements, especially the application of hydraulic drawing machines in the manufacturing field of generator stator positioning ribs is quite rare

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