Device and method for assembling multi-stage drum type rotor of aero-engine

Abstract

The invention provides a device and method for assembling a multi-stage drum type rotor of an aero-engine. The device comprises a base, an air-floating rotary table, a clamp device, measuring devices and a computation control system, wherein the air-floating rotary table is fixed to the center of the base, the clamp device is mounted on the air-floating rotary table, and the measuring devices are mounted on the base and arranged on the two sides of the air-floating rotary table; the computation control system is connected with the air-floating rotary table and used for transmitting driving, center-regulating and tilt-regulating information, and the computation control system is connected with the measuring devices and used for collecting morphology information of assembled parts. By means of the device and method, coaxiality of all parts of the rotor can be guaranteed, continuous assembling can be carried out, and the situation that the parts are dismounted and then measured, marked and assembled one by one is avoided; universality is high, operation is easy, and assembling precision and assembling efficiency are high.

Description

technical field [0001] The invention relates to the technology in the field of aero-engine assembly, in particular to an aero-engine multi-stage drum-disc rotor continuous assembly device and assembly method. Background technique [0002] The components of the aero-engine rotor are inevitably accompanied by deviations such as beating, eccentricity, and inclination during the machining process. If the centering scheme of the rotor is improperly designed and the rotor is assembled improperly, the accumulation of deviations will be multiplied. Due to the leverage effect, This results in massive yaw and tilt of the entire rotor assembly after assembly. If the rotor parts are seriously eccentric, the rotor will vibrate violently during operation, which will directly affect the safety and reliability of the engine. [0003] At present, domestic engine assembly mainly adopts traditional assembly methods, mainly manual testing with dial indicators, and the engine is assembled in th...

AI Technical Summary

Problems solved by technology

The problem with this method is that the tactile measurement used will produce a squeezing force on the surface of the part, and a slight disturbance of the probe will easily cause the coaxiality of the rotor component to be out of tolerance, and the measurement range is narrow, which cannot be covered by the tactile measurement equipment. The entire assembly surface of the part cannot provide an intuitive image of the surface topography of the part to find the source of the deviation

The problem with this method is that parts measurement and assembly require different benches to measure and install one by one, and this process is performed separately, which is inefficient

Images