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Electrical discharge machining device

A technology for electrical discharge machining and machining workpieces, which is applied in the field of electrical discharge machining devices and can solve problems such as reducing the material removal rate.

Inactive Publication Date: 2006-01-18
SODICK CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, excessively frequent bouncing motions can reduce material removal rates because material removal from the workpiece cannot be performed during bouncing motions

Method used

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  • Electrical discharge machining device
  • Electrical discharge machining device
  • Electrical discharge machining device

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Experimental program
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Effect test

Embodiment Construction

[0033] refer to figure 1 , 2 , 3 and 4 describe an embodiment of the electrical discharge machining device according to the present invention.

[0034] Such as figure 1 As shown in , the column 2 is disposed behind the bed 1, and the moving body 3 is provided on the bed 1 so as to be slidable along the Y-axis direction. The slide plate 4 is provided on the moving body 3 so as to be slidable along the X-axis direction perpendicular to the Y-axis. A processing tank 5 filled with dielectric liquid is arranged on the slide plate 4 . The workpiece (not shown) is fixed on a table (not shown) arranged in the machining tank 5 . The tool electrode 6 , which is positioned close to the workpiece, is mounted on an electrode mounting device 9 . The electrode mounting device 9 is fixed to the lower end of a hollow main shaft 8 movable in the Z-axis direction. In order to perform a jerking operation with a large amount of movement without reducing the material removal speed, the electr...

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Abstract

An apparatus for electrodischarge machining includes a quill (8) capable of moving in vertical directions; at least one set of linear motor rotors attached to the quill symmetrically with the axis of the quill; and a set of linear motor stators opposed to the set of rotors. An electrode mount (9) for holding a tool electrode (6) is attached to the lower end of the quill in such a manner that it is coaxial with the quill axis. Preferably, the set of rotors include magnet plates (12, 14) attached to the quill, and permanent magnets (11, 13, 15, 16) arranged in stripes on the magnet plates, while the set of stators include yokes (31, 41) and coils (32, 42) wound on the yokes. The quill has a vertical hole (8a) extending in its center, and air cylinder (61) is placed in the hole to balance the load of the quill. The quill has a density less than 4g / cm<3>, for example, composed of silicon nitride ceramic (Si3N4) or a compound of light metal and more than 40 percent ceramic by volume.

Description

[0001] The present invention is a divisional application of the No. 99801841.4 patent application filed on November 17, 1999, entitled an electric discharge machining device. technical field [0002] The present invention relates to an electrical discharge machining apparatus for forming holes of various shapes in the workpiece by feeding the tool electrode toward the workpiece while generating an electric discharge between the tool electrode and the conductive workpiece. Background technique [0003] Electric discharge machining devices are widely used to precisely process hard conductive workpieces into molds or dies. The workpiece is fixed on the table arranged in the processing tank, and the tool holder for the copper or graphite tool electrode is installed on the spindle or slide table that can move in the vertical direction. The machining tank is filled with a dielectric liquid such as kerosene, and the tool electrode is positioned very close to the workpiece. The gap...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23H1/00B23H7/26B23H1/02B23H7/30
CPCB23H7/30B23H7/26B23H1/02B23H1/00
Inventor 保坂昭夫佐野定男関陽一
Owner SODICK CO LTD