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Wire cutting structure and method and spark-erosion wire cutting device

A technology of wire EDM and cutting device, which is applied to accessories, electric machining equipment, metal processing equipment, etc., can solve the problem of low EDM machining efficiency, reduced machining accuracy, and inability to remove chips from the electrode in time. and other problems, to achieve the effect of improving the efficiency of WEDM, reducing the number and distribution area, and improving the discharge state between electrodes

Inactive Publication Date: 2019-12-03
SHANDONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The inventor found that when the workpiece with large width or depth is processed by wire electric discharge cutting, the erosion debris of the workpiece is not easy to be excluded between the electrodes, resulting in poor discharge state between electrodes, low efficiency of wire electric discharge cutting, and existence of A large amount of erosion debris will also lead to a decrease in machining accuracy; usually, high-pressure flushing fluid is used to remove the erosion debris between electrodes in WEDM, but when machining a workpiece with a large width or depth, it is difficult for the liquid flow to reach deeper The erosion debris caused by the high-pressure flushing effect is not good, and the erosion debris cannot be removed from the inter-electrode space in time, so that the inter-electrode discharge state of wire cutting cannot be effectively improved.

Method used

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  • Wire cutting structure and method and spark-erosion wire cutting device
  • Wire cutting structure and method and spark-erosion wire cutting device
  • Wire cutting structure and method and spark-erosion wire cutting device

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Embodiment 1

[0037] In a typical implementation of the present application, such as figure 1 As shown, a wire cutting structure is proposed.

[0038] It includes an electrode wire and a magnetizing mechanism. The electrode wire performs wire-cut electric discharge processing on workpieces made of ferromagnetic materials. The magnetizing mechanism magnetizes the electrode wire to magnetize the electrode wire. The magnetized electrode wire is used for absorbing Ferromagnetic erosion removes chips and carries them away from the cutting site.

[0039] Such as figure 1 As shown, the wire electrode includes an inner core 201 and an outer coating layer 202, the outer coating layer covers the outer peripheral surface of the inner core, and the magnetizing mechanism magnetizes the inner core of the wire electrode.

[0040] Of course, it can be understood that the electrode wire needs to bear a certain tensile force during the transmission process. Therefore, the electrode wire should have a certa...

Embodiment 2

[0050] In another typical embodiment of the present invention, such as figure 2 and image 3 As shown, a wire electric discharge device utilizing the wire cutting structure in Embodiment 1 is provided.

[0051] Including a frame, the frame 8 is equipped with the above-mentioned wire cutting mechanism, the frame is provided with a guide wheel, the electrode wire of the wire cutting structure cooperates with the guide wheel, and the electrode wire is bypassed by the guide wheel The winding drum 9 is driven, and the guide wheel is used to drive the wire electrode and the workpiece to be cut to produce relative movement along the wire electrode axis; in order to facilitate the arrangement of the magnetizing mechanism and not to cause magnetic interference to the working position of the electrode wire, the magnetizing mechanism On the frame on the left side of the front guide wheel, the cleaning mechanism of the wire cutting structure is installed on the frame for cleaning the er...

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Abstract

The invention discloses a wire cutting structure and method and a spark-erosion wire cutting device. The inner core of an electrode wire is partially magnetized, so that corrosion removal chips generated by machining are adsorbed on the surface of the electrode wire and taken away from a cutting position by utilizing the ferromagnetism of the inner core in a spark-erosion wire cutting process, theinter-electrode discharge state is improved, and the spark-erosion wire cutting efficiency is improved. Compared with the mode that a magnetic field is directly applied to a cutting position for adsorption, large-area magnetization of the ferromagnetic workpiece by directly applying the magnetic field can be avoided, and degradation of the inter-electrode discharge environment caused by adsorption of a large amount of corrosion removal chips by the magnetized workpiece to be machined is avoided.

Description

technical field [0001] The present application relates to the field of electric discharge machining, specifically a wire cutting structure, method and wire electric discharge device. Background technique [0002] Wire Cut EDM (WEDM for short) is a form of technology developed on the basis of EDM. The tool electrode uses a wire electrode, and a spark discharge is generated between the tool wire electrode and the workpiece electrode to clean the workpiece electrode. Processing can process various forms of two-dimensional and three-dimensional structures. Due to the flexible processing and high precision, WEDM is widely used. [0003] The inventor found that when the workpiece with large width or depth is processed by wire electric discharge cutting, the erosion debris of the workpiece is not easy to be excluded between the electrodes, resulting in poor discharge state between electrodes, low efficiency of wire electric discharge cutting, and existence of A large amount of ero...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23H7/02B23H11/00
CPCB23H7/02B23H11/00
Inventor 岳晓明张建华张勤河霍孟友
Owner SHANDONG UNIV