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Controller of wire-cut electric discharge machine and machining path generation device for wire-cut electric discharge machine

A technology of electric discharge wire and cutting machine tools, which is applied in the direction of electric processing equipment, metal processing equipment, circuits, etc., can solve the problems of low processing accuracy and increased processing depth, and achieve the effect of improving processing accuracy, avoiding increase, and avoiding processing volume

Active Publication Date: 2009-12-16
FANUC LTD
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0019] The invention provides a wire electric discharge machine tool, which can solve the problem of low machining accuracy caused by the increase of the machining depth, and is beneficial to improve the machining accuracy at the recessed corner for multi-path machining. It also provides a machine tool for Machining path generation device for wire electric discharge machine tool

Method used

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Embodiment Construction

[0064] The present invention is to improve the machining accuracy of the concave corner portion (the concave corner portion formed by two intersecting moving blocks) in the multi-pass machining of finishing. In order to improve machining accuracy, according to the present invention, as figure 2 As shown, based on the processing characteristics of the concave corner in the multi-path processing, the problem is solved by designing and changing the processing path including the insertion of the circular motion block.

[0065] The following will refer to Figure 4 The method of the invention is described. According to this method, the problem is solved by inserting arc blocks into concave corners of the shape commanded by the program. Figure 4 Indicates that the arc block is not inserted into the nth machining operation of multi-path machining but is inserted into the (n+1)th machining operation. In the nth machining operation, the wire electrode moves linearly along the "nth...

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Abstract

A controller and a machining path generation device for wire-cut electric discharge machine, capable of improving the machining accuracy of a reentrant corner portion subjected to multi-path machining. The controller or machining path generation device is provided with machining program storage means for storing a machining program, offset amount storage means for storing a wire offset amount for each machining operation, machining program analysis means for analyzing the machining program, machining shape definition means for creating a machining shape of a workpiece based on the result of an analysis by the machining program analysis means, machining shape correction circular-arc radius storage means for storing a predetermined circular-arc radius used to correct the machining shape, and circular arc insertion means which eliminates opposite end portions of a reentrant corner portion formed of two intersecting nonparallel motion blocks and inserts a circular-arc motion block with the predetermined circular-arc radius into the eliminated portion if the machining shape defined by the machining shape definition means includes the reentrant corner portion.

Description

technical field [0001] The present invention relates to a controller for a wire electric discharge machine tool, and particularly to a controller for controlling a wire electric discharge machine tool capable of improving machining accuracy of a reentrant corner portion. Furthermore, the present invention relates to a machining path generating device for a wire electric discharge machine tool, and particularly relates to a machining path generating device for a wire electric discharge machine tool for generating an The processing path used in . Background technique [0002] In the process of performing machining by a wire electric discharge machine tool, if the machine tool is controlled so that a wire electrode (wire electrode) moves along a path assigned by a machining program, the contour (workpiece path) of the workpiece obtained by machining inevitably deviates from the assigned path. path. [0003] The workpiece path deviates from this assigned path mainly because of...

Claims

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Application Information

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IPC IPC(8): B23H7/06B23H7/20
CPCB23H7/065
Inventor 小林正则平贺薰工藤壮大
Owner FANUC LTD
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