Integral impeller 5-axis machining method based on UG NX system platform

Abstract

The invention discloses an integral impeller 5-axis machining method based on a UG NX system platform and relates to a technical scheme of a 5-axis numerical control processing technology for an integral impeller researched and developed under a UGNX 7.5 computer-aided design (CAD) system platform. The method comprises using a reversal design technique under the UGNX 7.5 CAD system platform to obtain compressor wheel digifax; acquiring corresponding data from the digifax to establish blank digifax on the digifax according to numerical control technology requirements; selecting a machine tool: using a 5-axis linkage machining center; selecting a cutter according to the geometrical shape and machining materials of an impeller and selecting the cutter with a diameter as large as possible as long as the passage dimension allows; and setting the impeller machining track: UGNX, selecting an appropriate machining method and selecting allowances for rough and finish machining, outputting 5-axis machining center machine tool machining codes for being called by the 5-axis linkage machining center.

Description

technical field [0001] The five-axis machining method of the integral impeller based on the UG NX system platform of the present invention relates to a five-axis numerical control machining technical scheme of the integral impeller developed under the UG NX7.5 system platform. CNC lathe turning into the basic shape of the impeller rotor, and then using five-axis CNC machining technology to complete the processing of the hub and the blade on a blank, which can meet the strength requirements of the turbojet engine for the compressor rotor product, the surface error is small, dynamic Less mass is removed during balancing, which is an ideal processing method for integral impellers. Background technique [0002] As a key component of a turbojet engine, the quality of the integral impeller directly affects its aerodynamics and mechanical efficiency, so its processing technology has always been an important issue in the manufacturing industry. However, due to the complex geometric...

AI Technical Summary

Problems solved by technology

However, due to the complex geometric shape of the overall impeller, the narrow flow channel, and the twisted or ruled surface of the blade with a complex profile and a large degree of distortion, there are many constraints on the trajectory planning during processing, and interference collisions are prone to occur, resulting in non-interference Tool path is difficult

Therefore, the main difficulty lies in the processing of flow channels and blades, the precise control of tool space, tool tip position and tool axis orientation

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