Aero-engine turbine disc bolt hole intelligent strengthening system and control method thereof

Abstract

The invention relates to an aero-engine turbine disc bolt hole intelligent strengthening system and a control method thereof. The aero-engine turbine disc bolt hole intelligent strengthening system comprises a robot, a numerical control rotary table, a control system and an upper computer; a hole strengthening device is fixed to the robot and the robot drives the hole strengthening device to move,the hole strengthening device is connected with a force sensor, and an industrial camera is arranged on the hole strengthening device; the numerical control rotary table is used for fixing a turbinedisc to be machined, and a fixing mechanism is arranged on the numerical control rotary table; the control system is in communication connection with the robot, the force sensor, the hole strengthening device and the numerical control rotary table; and the upper computer is in communication connection with the control system and the industrial camera. According to the aero-engine turbine disc bolthole intelligent strengthening system and the control method thereof, a method that the robot clamps the hole strengthening device is adopted, matched with the numerical control rotary table, the force sensor and the industrial camera, the industrial camera is used for guiding the robot to move, and flexible machining control is carried out according to stress monitored by the force sensor, so that intelligent machining of aero-engine turbine disc bolt holes is achieved.

Description

technical field [0001] The invention relates to the field of aero-engine processing, and more particularly relates to an aero-engine turbine disk bolt hole intelligent strengthening system and a control method thereof. Background technique [0002] As one of the key components of aero-engines, the turbine disk has been in service for a long time in complex environments such as thermal-mechanical coupling. Its design has requirements such as high reliability, long life, and lightweight. One of the bottlenecks in engine development. The bolt hole structure is an important way for the connection of aero-engine discs. It is mostly arranged in a circular array on the turbine disc and is an important part of the aero-engine turbine disc structure. When an aero-engine is running, under the compound action of high temperature, high pressure, mechanical tension and pressure, stress concentration may occur on the turbine disk, which may lead to fatigue fracture of the turbine disk an...

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Problems solved by technology

[0003] At present, most of the hole strengthening processing equipment is modified by referring to the existing drilling machine mechanical structure. However, there are many types of turbine disks in aero-engines and the arrangement of bolt holes is complex. During the strengthening process, the position of the turbine disk needs to be corrected many times to strengthen different bolt holes. The workpiece clamping and positioning are difficult, and the degree of automation and intelligence is low, so it is difficult to meet the strengthening requirements of the aero-engine turbine disk; in addition, the traditional strengthening equipment can only complete the "plug-strengthen-exit" action mechanically. The contact force of the inner wall of the bolt hole is not particularly concerned, which may easily cause uneven strengthening of the inner wall of the bolt hole and affect the strengthening effect

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