Closed impeller electric spark machining device and machining method

A closed impeller and processing device technology, applied in the field of impeller processing, can solve the problems of low processing efficiency, achieve the effects of improving processing efficiency, improving the machining accuracy of flow channels, and improving cooling and chip removal

Active Publication Date: 2017-05-31
北京市电加工研究所有限公司
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0004] The technical problem to be solved by the present invention is to solve the problem of low processing efficiency due to the separate processing of each flow channel of the closed impeller in the prior art

Method used

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  • Closed impeller electric spark machining device and machining method
  • Closed impeller electric spark machining device and machining method
  • Closed impeller electric spark machining device and machining method

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Embodiment Construction

[0036] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0037] Such as Figure 1-Figure 4 As shown, the closed impeller 1 electric discharge machining device provided by the embodiment of the present invention includes an impeller installation fixture 2 for installing the closed impeller 1 to be processed, a pre-processed electrode installation fixture 3 and a plurality of pre-processed electrodes...

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Abstract

The invention relates to the technical field of impeller machining, in particular to a closed impeller electric spark machining device and machining method. The closed impeller electric spark machining device comprises an impeller installation fixture for installing a closed impeller to be machined, a pre-machining electrode installation fixture and a plurality of pre-machining electrodes; the impeller installation fixture is provided with an installation shaft, the closed impeller to be machined is provided with a center positioning hole, and the closed impeller to be machined sleeves the installation shaft through the center positioning hole; the electrode installation fixture comprises a first electrode installation seat, the multiple pre-machining electrodes are all connected with the first electrode installation seat and arranged circumferentially, and the number of the pre-machining electrodes is the same as that of flow channels of the closed impeller to be machined; in the machining process, each pre-machining electrode corresponds to a flow channel inlet of the closed impeller to be machined; and the closed impeller electric spark machining device furthermore comprises a first drive mechanism for driving the electrode installation fixture to perform straight line movement in the Z-axis direction, and the Z axis is the extension direction of the installation shaft. By means of the closed impeller electric spark machining device and machining method, machining efficiency is improved, and machining precision is guaranteed.

Description

technical field [0001] The invention relates to the technical field of impeller machining, in particular to a closed impeller electric discharge machining device and a machining method. Background technique [0002] Closed impellers are increasingly used in advanced turbomachinery used in aerospace engines, petrochemical and other fields. The structure of the closed impeller is very complicated, and the machining accessibility is poor. In addition, high-temperature alloys or titanium alloys and other difficult-to-machine materials are often used. It is difficult to achieve high-precision machining by traditional cutting. EDM uses pulsed spark discharge between tools and workpieces to etch away excess material, which has the advantages of high precision and wide material adaptability. The existing closed-type impeller EDM technology uses the spindle head to drive the electrode for machining, and the machining efficiency is low. Therefore, under the existing EDM processing c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23H1/00B23H9/10
CPCB23H1/00B23H9/10
Inventor 李艳伏金娟杨立光郭妍于帆
Owner 北京市电加工研究所有限公司
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