Tool device and method for machining large turbine blade combined partition plate

Abstract

The invention relates to a tool device for machining a large turbine blade combined partition plate. The tool device comprises a rotating support, a deflection mechanism enabling the rotating supportto deflect, a rotating table and a device enabling the rotating table to rotate. The rotating table and the device enabling the rotating table to rotate are installed on the rotating support. When therotating support and the rotating table are horizontal, the rotating table rotates around a vertical shaft. The deflection mechanism enabling the rotating support to deflect comprises a base, a transmission motor, a speed reducer, a gearwheel and a rotating shaft. The rotating support is supported on the rotating shaft. The gearwheel is fixed to one end of the rotating shaft and drives the rotating shaft to rotate. The rotating shaft is installed on the base. The transmission motor and the speed reducer are connected through a motor coupler and a speed reducer coupler and used for driving thespeed reducer. The gearwheel is fixed to the rotating support through a bolt. The speed reducer drives the gearwheel through meshing of an output gear of the speed reducer, therefore, the rotating shaft is driven, and the rotating support is deflected.

Description

technical field [0001] The invention relates to a welding processing method and a welding tooling device for a large-scale and super-large steam turbine blade combined diaphragm. Background technique [0002] As the manufacturing industry accelerates the development of high quality, the quality requirements for parts, especially welding quality, are getting higher and higher; steam turbines usually work under the conditions of high temperature, high pressure and high speed, and the high temperature and high pressure steam passing through the fixed nozzle becomes the acceleration The airflow is sprayed onto the blades, and the blades are subjected to the simultaneous effects of steam force, steam excitation force, corrosion and vibration, so the welding quality of the blade combined diaphragm is extremely high. If the blades fall off due to welding quality problems, it will cause the steam turbine Generator set vibrates, which can cause speeding accidents; therefore, the safe...

AI Technical Summary

Problems solved by technology

[0003] The existing processing method adopts the platform plate to fix the welding position of the blade disk and the blade. When the angle of the welding line of the blade combination partition is too large, the platform plate cannot adjust the angle of the blade disk blade, so vertical welding has to be used. , Overhead welding, manual operation of electrode arc welding is more difficult, resulting in unguaranteed welding quality, difficulty in forming the weld seam, easy to produce weld bumps on the surface of the weld seam, and even collapse; and the flat plate of the fixed blade combination partition cannot rotate by itself. Therefore welding efficiency is lower

Welding quality cannot be guaranteed

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