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Electrical discharge grinding machining method of overlapped-type double-layer inner-outside honeycomb ring

A grinding and overlapping technology, which is applied in electric processing equipment, metal processing equipment, electrode manufacturing, etc., can solve the problems of unfavorable and stable electrical discharge machining, etc., and achieve uniform material removal, high honeycomb surface quality, and radial runout small effect

Active Publication Date: 2013-09-25
SHENYANG LIMING AERO-ENGINE GROUP CORPORATION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Usually, EDM honeycomb grinding uses a cylindrical rotating electrode to perform servo grinding on the surface of the inner honeycomb ring in the part processing area. Due to the special structure of this part, the cylindrical rotating electrode cannot enter the narrow area of ​​the slit to perform servo grinding on the surface of the inner honeycomb ring. Processing, and from the principle analysis, when the cylindrical rotating electrode is used to process the outer honeycomb ring, the contact discharge interval will always become a tangent straight line. This situation is very unfavorable for stable discharge processing and obtaining a good surface, so other processing needs to be studied method

Method used

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  • Electrical discharge grinding machining method of overlapped-type double-layer inner-outside honeycomb ring
  • Electrical discharge grinding machining method of overlapped-type double-layer inner-outside honeycomb ring
  • Electrical discharge grinding machining method of overlapped-type double-layer inner-outside honeycomb ring

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Effect test

Embodiment 1

[0019] This embodiment provides an overlapping double-layer inner and outer honeycomb ring EDM processing method, which is characterized in that: the overlapping double-layer inner and outer honeycomb ring EDM processing method uses a fixed electrode diameter In the limit servo mode, the electrode is made into an arc segment close to the diameter of the workpiece, and installed on the spindle head of the machine tool. The electrode is fixed during processing, and the turntable of the machine tool and the workpiece make continuous rotary motion around the electrode, and the electrode moves in the radial direction. Servo machining until the erosion amount reaches the set value, the discharge between the electrode and the workpiece stops, and the entire machining process ends;

[0020] The electrodes used are special electrodes, and the overall structure of the special electrodes is a fan-shaped structure in the horizontal direction and a ladder structure in the vertical direction...

Embodiment 2

[0025] This embodiment provides an overlapping double-layer inner and outer honeycomb ring EDM processing method, which is characterized in that: the overlapping double-layer inner and outer honeycomb ring EDM processing method uses a fixed electrode diameter In the limit servo mode, the electrode is made into an arc segment close to the diameter of the workpiece, and installed on the spindle head of the machine tool. The electrode is fixed during processing, and the turntable of the machine tool and the workpiece make continuous rotary motion around the electrode, and the electrode moves in the radial direction. Servo machining until the erosion amount reaches the set value, the discharge between the electrode and the workpiece stops, and the entire machining process ends;

[0026] The electrodes used are special electrodes, and the overall structure of the special electrodes is a fan-shaped structure in the horizontal direction and a ladder structure in the vertical direction...

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Abstract

The invention relates to an electrical discharge grinding machining method of an overlapped-type double-layer inner-outside honeycomb ring. A fixed electrode radial positioning servo way is adopted, an electrode is made into a circular arc sectorial segment approaching to the diameter of a workpiece and is installed on a spindle head of a lathe, the electrode is fixed during machining, a rotary table of the lathe and the workpiece do continuous rotary motion around the electrode, the electrode is subjected to servo machining in the radial direction until the ablation quantity is up to a set value, and the whole machining process ends when the discharging between the electrode and the workpiece is stopped; the adopted electrode is a special electrode, and the total structure of the special electrode is a sectorial structure in the horizontal direction and is a stepped structure in the longitudinal direction. The electrical discharge grinding machining method of the overlapped-type double-layer inner-outside honeycomb ring has the advantages that the material ablation quantity in the machining process is relatively uniform, a ground and molded honeycomb has higher surface quality and smaller radial play eccentricity, and particularly, the technical problem that electrical discharge grinding machining of an outer honeycomb ring cannot be finished by using a universal cylindrical rotating electrode is solved by using the machining method.

Description

technical field [0001] The invention relates to the technical field of electric machining, in particular to an electric spark grinding processing method for overlapping double-layer inner and outer honeycomb rings. Background technique [0002] Usually, EDM honeycomb grinding uses a cylindrical rotating electrode to perform servo grinding on the surface of the inner honeycomb ring in the part processing area. Due to the special structure of this part, the cylindrical rotating electrode cannot enter the narrow area of ​​the slit to perform servo grinding on the surface of the inner honeycomb ring. Processing, and from the principle analysis, when the cylindrical rotating electrode is used to process the outer honeycomb ring, the contact discharge interval will always become a tangent straight line. This situation is very unfavorable for stable discharge processing and obtaining a good surface, so other processing needs to be studied method. Contents of the invention [000...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23H9/00B23H1/04
Inventor 刘丹崔秀藩李莹王德新朱海南
Owner SHENYANG LIMING AERO-ENGINE GROUP CORPORATION
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