Horizontal type punching method and horizontal-type punching tool for datum holes of blade die forged blank

Abstract

The invention discloses a horizontal type punching method for datum holes of a blade die forged blank. The horizontal type punching method comprises the following steps of: regulating relative positions of section sample plates and fixing the regulated section sample plates on a bottom plate; horizontally arranging the blade die forged blank on a horizontal type punching tool, and arranging the back surface of the blade die forged blank in grooves of the section sample plates; arranging a horizontal type punching device on a rotary workbench of a numerical control machine tool, pressing and fixing the bottom plate by a pressure plate; horizontally feeding by a drill bit of the numerical control machine tool to machine the datum holes required for the end surface of the blade die forged blank, and rotating the rotary workbench to machine the other end surface of the blade die forged blank. The method can quickly machine the datum holes which meet designs and use requirements and are higher in precision. Moreover, particularly for larger and heavier blades, the method can greatly reduce labour intensity and skill requirements of operating workers while ensuring machining precision of the datum holes, so that a considerable economic benefit and a practical significance are achieved.

Description

technical field [0001] The invention belongs to the field of equipment manufacturing, and in particular relates to a horizontal punching method and a horizontal punching tool for a blade forging blank reference hole. Background technique [0002] The manufacturing process of blades, the core parts of traditional axial flow compressor units / turbine units, is: blanking → forging forming → shot blasting → heat treatment → drilling → rough machining → finishing → flaw detection → inspection → delivery to the warehouse. As one of the important links in the blade manufacturing process, drilling refers to machining the reference holes required for subsequent processing on both ends of the blade die forging blank, and the accuracy of the reference hole processing has a great influence on whether the blade die forging can be processed to a qualified The leaves play a decisive role. As far as domestic enterprises that produce blades know, the method of processing reference holes is m...

AI Technical Summary

Problems solved by technology

Except for the drilling process, the entire production process is basically manual operation, the production efficiency is low, the processing accuracy is not easy to guarantee, the skill requirements for workers are high, and the accuracy of reference holes is uneven; For heavy blades, the traditional vertical punching process is more difficult to accurately position the vertically placed blade forging blanks, which often leads to scrapped processing and wastes a lot of manpower and material resources

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