Mushroom blade machining clamp and clamping machining method

Abstract

The invention discloses a mushroom blade machining clamp and a clamping machining method. The mushroom blade machining clamp comprises a base, a blade root positioning plate, a blade shroud positioning plate, two blade body clamping plates, a self-alignment supporting device, a blade root cylindrical positioning mechanism and a blade shroud clamping positioning seat. A blade root positioning centre is horizontally arranged on the inner side of the blade root positioning plate. A blade shroud positioning centre is horizontally arranged on the inner side of the blade shroud positioning plate. The two blade body clamping plates are relatively detachably connected to the two opposite sides of the base. The self-alignment supporting device comprises self-alignment supporting nails detachably connected to the positions, on the two sides of the blade body clamping plates, of the end face of the base. The blade root cylindrical positioning mechanism is provided with a positioning cylinder which is vertically arranged and suitable for being matched with blade root teeth for positioning and a first clamping positioning centre suitable for conducting clamping positioning on the blade root from the upper end face, the lower end face, the front side face and the rear side face. The blade shroud clamping positioning seat is matched with the blade root cylindrical positioning mechanism and provided with a second clamping positioning centre suitable for conducting clamping positioning on the front side face and the rear side face of the blade shroud. The mushroom blade machining clamp andthe clamping machining method are used for solving the problems that as for a traditional mushroom blade forging forming technology, the machining precision is low, the production efficiency is low, and the labor intensity is large.

Description

technical field [0001] The invention relates to a 箘-type blade processing fixture and a clamping processing method, and belongs to the technical field of 箘-type blade processing fixtures. Background technique [0002] As a transfer station of energy, steam turbine plays a vital role in transformation. At the same time, it provides about 70%-80% of the world's electricity and makes a huge contribution to the world's economy. However, blades are the most demanded parts in steam turbines. A steam turbine has hundreds or even thousands of blades, but the processing quality of blades determines the utilization rate of energy. It is known as the "heart" of steam turbines. The man-hours of steam turbine blade manufacturing account for about 1 / 3 of the complete steam turbine, the amount of tooling accounts for about 1 / 2 of the complete machine, and the cost accounts for 20% to 25% of the complete machine. Because the load distribution between the root of the blade and the rim of t...

AI Technical Summary

Problems solved by technology

[0008] The technical problem to be solved by the present invention is to provide a processing fixture and a clamping processing method for a 箘-shaped blade to solve the problems of low processing precision, low production efficiency, and high labor intensity of the 箘-shaped blade using the traditional forging technology. Bad and other issues

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