JPS6085831A - Wire-cut electric discharge machining device - Google Patents

Wire-cut electric discharge machining device

Info

Publication number
JPS6085831A
JPS6085831A JP19381983A JP19381983A JPS6085831A JP S6085831 A JPS6085831 A JP S6085831A JP 19381983 A JP19381983 A JP 19381983A JP 19381983 A JP19381983 A JP 19381983A JP S6085831 A JPS6085831 A JP S6085831A
Authority
JP
Japan
Prior art keywords
data
wire
graphic
discharge machining
electric discharge
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP19381983A
Other languages
Japanese (ja)
Inventor
Shigeru Takagi
茂 高木
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP19381983A priority Critical patent/JPS6085831A/en
Publication of JPS6085831A publication Critical patent/JPS6085831A/en
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23H—WORKING OF METAL BY THE ACTION OF A HIGH CONCENTRATION OF ELECTRIC CURRENT ON A WORKPIECE USING AN ELECTRODE WHICH TAKES THE PLACE OF A TOOL; SUCH WORKING COMBINED WITH OTHER FORMS OF WORKING OF METAL
    • B23H7/00—Processes or apparatus applicable to both electrical discharge machining and electrochemical machining
    • B23H7/02—Wire-cutting
    • B23H7/06—Control of the travel curve of the relative movement between electrode and workpiece
    • B23H7/065—Electric circuits specially adapted therefor
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B19/00—Programme-control systems
    • G05B19/02—Programme-control systems electric
    • G05B19/42—Recording and playback systems, i.e. in which the programme is recorded from a cycle of operations, e.g. the cycle of operations being manually controlled, after which this record is played back on the same machine
    • G05B19/4202—Recording and playback systems, i.e. in which the programme is recorded from a cycle of operations, e.g. the cycle of operations being manually controlled, after which this record is played back on the same machine preparation of the programme medium using a drawing, a model
    • G05B19/4205—Recording and playback systems, i.e. in which the programme is recorded from a cycle of operations, e.g. the cycle of operations being manually controlled, after which this record is played back on the same machine preparation of the programme medium using a drawing, a model in which a drawing is traced or scanned and corresponding data recorded

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)

Abstract

PURPOSE:To allow graphic data to be inputted automatically and precisely by using an optical reader in place of a conventional digitizer for inputting a graphic pattern to be machined in a wire-cut electric discharge machining device. CONSTITUTION:A figure 10 depicting a predetermined graphic line A to be cut- machined is read out by an optical reader 8, and the graphic pattern is approximated with the predetermined precision by an image processor 9 via lines or circular arcs using the read out data, then the graphic data are converted by a data converter 3 into data recognizable for an NC unit 2. The unit 2 moves a machining table 4 in the X-direction or the Y-direction based on a command from the converter 3, controls the relative position between a wire electrode 6 and a work 7, and performs predetermined graphic machining. According to this constitution, graphic data can be inputted automatically and precisely.

Description

【発明の詳細な説明】 〔発明の技術分野〕 この発明は、たとえば被加工物を貫通するワイヤ電極に
より所定の輪郭形状に加工する放電加工をＮＣ装置（数
値制御装置）によって自動的に行なうワイヤカット放電
加工装置に関するもので、特にこの発明は所定の図形を
切断加工する場合、デジタイザ（ＸＹ座標読取装Ｍ）へ
の図形データの入力を容易にしたワイヤカット放電加工
装置に関するものである。Detailed Description of the Invention [Technical Field of the Invention] The present invention relates to a method for automatically performing electric discharge machining using a wire electrode passing through a workpiece into a predetermined contour shape using an NC device (numerical control device). The present invention relates to a cut electric discharge machining apparatus, and more particularly, the present invention relates to a wire cut electric discharge machining apparatus that facilitates the input of figure data to a digitizer (XY coordinate reading device M) when cutting a predetermined figure.

〔従来技術〕[Prior art]

第１図は従来のこの種ワイヤカット放電加工装置を示す
ブロック図で、（１）は加工すべき図形のデータを入力
するためのデジタイザ、（２）は従来周知はＮＣ装置、
（３）は上記デジタイザ（１）から入力された図形デー
タをＮＣ装置（２）が認識できるデータに変換するため
のデータ変換装置、（４）は上記ＮＣ装置（２）によっ
てＸ方向、およびＹ方向に移動され、上面に被加工物（
刀を着脱自在に固定した加工テーブル、（５）はワイヤ
カット放電加工用の電源、（６）は上記被加工物（７）
、および加工テーブル（４）を貫通し、被加工物（７）
を所定の輪郭形状に切断加工するワイヤ電極である。FIG. 1 is a block diagram showing a conventional wire-cut electrical discharge machining apparatus of this type, in which (1) is a digitizer for inputting data of the figure to be machined, (2) is a conventionally well-known NC device,
(3) is a data conversion device for converting the graphic data input from the digitizer (1) into data that can be recognized by the NC device (2); direction, and the workpiece (
A machining table with a removably fixed sword, (5) a power source for wire cut electrical discharge machining, and (6) the workpiece (7)
, and the workpiece (7) through the processing table (4).
This is a wire electrode that cuts the material into a predetermined contour shape.

従来のワイヤカット放電加工装置は上記のように構成さ
れているので、いま、被加工物を第２図に示すような図
形ライン（Ａ）の輪郭形状に切断加工する場合には、ま
ず、上記デジタイザ（１）上に第２図に示す図形ライン
（Ａ）を画いた図面（Ｉｏを置き、第６図に示すように
、図形ライン（Ａ）上において、所定の間隔をあけて（
Ａａ）点、（Ａｂ）点・・；（Ａｎ）点の位置をスタイ
ラスペンによって順番にヒツトしたあと、このヒツトし
た各点と点の間を直線、あるいは円弧でつなぐ作業によ
ってデジタイザ（１）にデータを入力しながら所定の図
形を作成する。このようにしてデジタイザ（１）に入力
されたデータは、次段のデータ変換装置（３）によって
次段のＮＣ装置（２）が認識できるデータに変換される
。そして、このＮＣ装置（２）は、上記データ変換装置
（３）からの指令に基づいて加工テーブル（４）をＸ方
向、またはＹ方向に移動させ、電源（５）に接続された
ワイヤ電極（６）と、加工テーブル（４）上の被加工物
（７）との相対位置を制御することによって被加工物（
７）に対し所定の図形加工を行なうことができるもので
ある。Since the conventional wire-cut electric discharge machining apparatus is configured as described above, when cutting a workpiece into the contour shape of the figure line (A) as shown in FIG. A drawing (Io) in which the figure line (A) shown in Figure 2 is drawn on the digitizer (1), and as shown in Figure 6, on the figure line (A), (
Point Aa), point (Ab)...; After hitting the position of point (An) in order with the stylus pen, connect each hit point with a straight line or arc to the digitizer (1). Create a predetermined shape while inputting data. The data thus input to the digitizer (1) is converted by the next-stage data conversion device (3) into data that can be recognized by the next-stage NC device (2). Then, this NC device (2) moves the processing table (4) in the X direction or the Y direction based on the command from the data conversion device (3), and moves the wire electrode ( 6) and the workpiece (7) on the processing table (4).
7) can be subjected to predetermined graphic processing.

しかしながら、上述した従来のワイヤカット放電加工装
置においては、所定の図形を加工するときに、その図形
を画いた図面をデジタイザ（１）上に置き、この図形の
ライン上において、所定の間隔をあけて多数の点をスタ
イラスペンによってヒツトすることによって図形データ
を入力するようになされているので、この入力作業がき
わめて面倒であるばかりでなく、作業者によって入力す
る位置精度に「バラツキ」が生じる欠点があり、実際に
は０．５％もずれることがあり、数μｍの精度を要求さ
れるワイヤカット放電加工装置には不適当である。However, in the above-mentioned conventional wire-cut electric discharge machining apparatus, when machining a predetermined figure, a drawing depicting the figure is placed on the digitizer (1), and a predetermined interval is placed on the line of the figure. Since graphic data is entered by hitting a large number of points with a stylus pen, this input work is not only extremely troublesome, but also has the disadvantage that the accuracy of input positions varies depending on the operator. In reality, it may deviate by as much as 0.5%, making it unsuitable for wire-cut electric discharge machining equipment that requires accuracy of several μm.

〔発明の概要〕[Summary of the invention]

この発明は、かかる点に着目してなされたもので、加工
すべき図形の入力に、従来のデジタイザに代えて光学式
読取装置を用いることによって、自動的に、しかも高精
度に図形データを入力することができるワイヤカット放
電加工装置を提供しようとするものである。This invention was made with attention to this point, and by using an optical reader instead of a conventional digitizer to input the figure to be processed, figure data is automatically and highly accurately input. The present invention aims to provide a wire-cut electrical discharge machining device that can perform the following steps.

〔発明の実施例〕[Embodiments of the invention]

すなわち、第４図はこの発明の一実施例を示すもので、
（８）は加工すべき所定の図形ライン（Ａ）を画いた図
面０〔を読取るファクシミリ装置等の光学式読取装置ｕ
、（９）はこの光学式読取装置（８）によって読取られ
た図形データを基に、その座標および形状を認識するた
めの認識装置、すなわちイメージ・プロセッサ、（３）
はこのイメージ・プロセッサ（９）から入力された図形
データをＮＣ装置（２）が認識できるデータに変換する
ためのデータ変換装置、（４）は上記ＮＣ装置（２）に
よってＸ方向、およびＹ方向に移動され、上面に被加工
物（７）を着脱自在に固定した加工テーブル、（５）は
ワイヤカット放電加工用の電源、（６）は上記被加工物
（７）、および加工テーブル（４）を貫通し、被加工物
（７）を所定の輪郭形状に切断加工するワイヤ電極であ
る。That is, FIG. 4 shows an embodiment of this invention.
(8) is an optical reader u such as a facsimile machine that reads the drawing 0 [drawing the predetermined figure line (A) to be processed]
, (9) is a recognition device, that is, an image processor, for recognizing the coordinates and shape based on the graphic data read by the optical reader (8); (3)
is a data conversion device for converting graphic data input from this image processor (9) into data that can be recognized by the NC device (2), and (4) is a data conversion device for converting graphic data input from this image processor (9) into data that can be recognized by the NC device (2). The processing table (5) is a power source for wire-cut electric discharge machining, and (6) is the workpiece (7) and the processing table (4). ) is a wire electrode that cuts the workpiece (7) into a predetermined contour shape.

この発明のワイヤカット放電加工装置は上記のように構
成されているので、切断加工すべき所定の図形ライン（
Ａ）を画いた図面０１を光学式読取装置（８）によって
読取り、（この場合の読取り精度は約８０μｍが期待で
きる）この読取ったデータをイメージ・プロセッサ（９
）によって所定の図形精度になるように直線、あるいは
円弧によって近似させたあと、この図形データをデータ
変換装置（３）によってＮＣ装Ｍ（２）が８１４できる
データに変換する。そして、このＮＣ装置（２）は、上
記データ変換装置（３）からの指令に基づいて加工テー
ブル（４）をＸ方向、またはＹ方向に移動させ、電源（
５）に接続されたワイヤ電極（６）と、加工テーブル（
４）上の被加工物（７）との相対位置を制御することに
よって被加工物（７）に対し所定の図形加工を行なうこ
とができる。Since the wire-cut electric discharge machining apparatus of the present invention is configured as described above, a predetermined figure line (
The drawing 01 depicting A) is read by the optical reading device (8) (in this case, the reading accuracy can be expected to be about 80 μm), and this read data is sent to the image processor (9).
), the graphic data is approximated by a straight line or a circular arc so as to have a predetermined graphic accuracy, and then this graphic data is converted by the data conversion device (3) into data that can be processed by the NC unit M (2) 814. Then, this NC device (2) moves the processing table (4) in the X direction or Y direction based on the command from the data conversion device (3), and the power supply (
5) and the wire electrode (6) connected to the processing table (
4) By controlling the relative position with respect to the workpiece (7) above, it is possible to perform predetermined shape processing on the workpiece (7).

なお、上記イメージ・プロセッサ（９）に対話修正機能
をもたせるようにすれば、読み取られたデータの対話修
正が可能であるばかりでなく、高精度を要求されるこの
種ワイヤカット放電加工装置においては数値による読取
データの修正は不可欠であることはいうまでもない。Furthermore, if the image processor (9) is provided with a dialogue correction function, it is not only possible to modify the dialogue of the read data, but it is also possible to correct the dialogue in this type of wire-cut electric discharge machining equipment that requires high precision. Needless to say, it is essential to correct the read data numerically.

〔発明の効果〕〔Effect of the invention〕

以上述べたように、この発明によれば加工すべき図形の
入゛；カに光学式読取装置を用いるようにしたので、自
動的に、しかも高精度に図形データをＮＣ装置に入力す
ることができる優れた実用的効果を有するものである。As described above, according to the present invention, since an optical reading device is used for inputting the figures to be processed, it is possible to automatically and highly accurately input figure data into the NC device. It has excellent practical effects.

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は従来のワイヤカット放電加工装置を示すブロッ
ク図、第２図は加工すべき輪郭形状の図形ラインを画い
た図面を示す正面図、第６図はスタイラスペンによる図
形ライ・ンに対するヒツト要領を示す説明図、第４図は
この発明の一実施例を示すブロック図である。 図において、（２）はＮＣ装置、（３）はデータ変換装
置、（４）は加工テーブル、（５）は冨源、（Ｇ）はワ
イヤ電極、（７）は被加工物、（８）は光学式読取装置
、（９）はイメージ・プロセッサ、θｌは図面、（Ａ）
は図形ラインである。なお、図中同一符号は同一または
相当部分を示す。 代理人　大　岩　増　雄 手続補正書（自発） 特許庁長官殿 １、事件の表示　特願昭５８　１９３８１９号２、発明
の名称 ワ　イ　ヤ　カ　ツ　１・　放　電　力１１　工　装　
置３、補正をする者 明細書の１発明の詳細な説明」の欄。 ６、補正の内容 （１）明細書第２頁第１１行〜第１２行の１周知はＮＧ
装置」を「周知のＮＧ装置」と補正する。 以　上Fig. 1 is a block diagram showing a conventional wire-cut electrical discharge machining device, Fig. 2 is a front view showing a diagram showing the figure lines of the contour shape to be machined, and Fig. 6 is a diagram showing the drawing of the figure lines with a stylus pen. FIG. 4 is a block diagram showing an embodiment of the present invention. In the figure, (2) is the NC device, (3) is the data converter, (4) is the processing table, (5) is the source, (G) is the wire electrode, (7) is the workpiece, (8) is an optical reader, (9) is an image processor, θl is a drawing, (A)
is a figure line. Note that the same reference numerals in the figures indicate the same or corresponding parts. Agent Masuo Oiwa Procedural amendment (voluntary) Commissioner of the Japan Patent Office 1. Indication of the case Japanese Patent Application No. 193819 2. Title of the invention Wire cut 1. Discharge power 11.
3. Detailed explanation of the invention in the amended person's specification. 6. Contents of amendment (1) 1. Notification of page 2, lines 11 to 12 of the specification is NG.
``device'' is corrected to ``well-known NG device.''that's all

Claims (2)

【特許請求の範囲】[Claims] （１）データ変換装置からの指令を入力したＮＣ装置に
より、被加工物を載置した加工テーブルを制御し、ワイ
ヤ電極により被加工物を所定の輪郭形状に切断加工する
ようにしたものにおいて、加工すべき所定の図形ライン
を画いた図面を読取る光学式読取装置と、この光学式読
取装置によって読取られた図形データを基にその座標お
よび形状を８識して上記データ変換装置に入力するイメ
ージ・プロセッサとを俯えたことを特徴とするワイヤカ
ット放電加工装置。(1) In a device in which a processing table on which a workpiece is placed is controlled by an NC device inputting commands from a data conversion device, and the workpiece is cut into a predetermined contour shape using a wire electrode, An image of an optical reader that reads a drawing in which a predetermined figure line to be processed is drawn, and the coordinates and shape of the figure based on the figure data read by this optical reader, which are input into the data converter.・Wire-cut electric discharge machining equipment characterized by a top-down view of the processor. （２）光学式読取装置としてファクシミリ装置を有する
ことを特徴とする特許請求の範囲第１項記載のワイヤカ
ット放電加工装置。(2) The wire-cut electric discharge machining apparatus according to claim 1, further comprising a facsimile machine as an optical reader.
JP19381983A 1983-10-17 1983-10-17 Wire-cut electric discharge machining device Pending JPS6085831A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP19381983A JPS6085831A (en) 1983-10-17 1983-10-17 Wire-cut electric discharge machining device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP19381983A JPS6085831A (en) 1983-10-17 1983-10-17 Wire-cut electric discharge machining device

Publications (1)

Publication Number Publication Date
JPS6085831A true JPS6085831A (en) 1985-05-15

Family

ID=16314276

Family Applications (1)

Application Number Title Priority Date Filing Date
JP19381983A Pending JPS6085831A (en) 1983-10-17 1983-10-17 Wire-cut electric discharge machining device

Country Status (1)

Country Link
JP (1) JPS6085831A (en)

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