JPS6284925A - Feed control device for machining electrode of electric discharge machine - Google Patents

Feed control device for machining electrode of electric discharge machine

Info

Publication number
JPS6284925A
JPS6284925A JP22366985A JP22366985A JPS6284925A JP S6284925 A JPS6284925 A JP S6284925A JP 22366985 A JP22366985 A JP 22366985A JP 22366985 A JP22366985 A JP 22366985A JP S6284925 A JPS6284925 A JP S6284925A
Authority
JP
Japan
Prior art keywords
command
control
speed
machining
control axis
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
JP22366985A
Other languages
Japanese (ja)
Inventor
Haruki Obara
小原 治樹
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.)
Fanuc Corp
Original Assignee
Fanuc 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 Fanuc Corp filed Critical Fanuc Corp
Priority to JP22366985A priority Critical patent/JPS6284925A/en
Publication of JPS6284925A publication Critical patent/JPS6284925A/en
Pending legal-status Critical Current

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  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)

Abstract

PURPOSE:To improve machining speed by interposing integrators for issuing command for each control shaft drive position when supplied with input of command of directional component ratio f each control shaft and with command of forward or reverse, between distribution process devices and control devices for controlling position and speed of each control shaft drive. CONSTITUTION:A servo-feed device 3 outputs a forward/reverse command A based on the electric discharge machining voltage between a machining electrode 1 and a work 2 detected by a spark sensing means 12. A distribution process device,4, being supplied with an input of the command A, distributes 3-dimen sional position command B into directional component of each control shaft, outputs the ratio D to an integrator 6 which outputs command E for each con trol shaft drive position also based on the command A. A control device 5 for controlling position and speed of each control shaft drive performs electrode feed by means of a position control circuit 51, speed control circuit 52, control motor 53, position sensor 54, and speed sensor 55. Thus, load on the distribution process device is lessened and accordingly machining speed is improved and electrode wear is reduced.

Description

【発明の詳細な説明】 〔産業上の利用分野〕 本発明は、NC制御放電加工機用加工電極送り制御装置
の改良に関する。特に、加工速度を向上し、電極消耗を
減少する改良に関する。
DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an improvement of a machining electrode feed control device for an NC-controlled electrical discharge machine. In particular, it relates to improvements that increase processing speed and reduce electrode wear.

〔従来の技術〕[Conventional technology]

従来技術に係るNC制御放電加工機用加工Ml極送り制
御装着の1例を、第2図を参照して説明する。
An example of a machining Ml pole feed control attachment for an NC-controlled electrical discharge machine according to the prior art will be described with reference to FIG.

第2図参照 1は加工電極であり、2は被加工体である。3はサーボ
フィード装置であり、放電電圧検出手段12によって検
出される加工電極1と被加工体2との間の放電加工電圧
を入力されて前進・後退の指令Aを出力する。4は分配
処理装置であり前進・後退の指令Aと数値情報等をもっ
て入力される三次元位置指令Bとを入力されて、この三
次元位置指令Bを各制御軸方向成分Cに分配する。5は
各制御軸駆動用位置・速度制御装置5であり、位置制御
回路51と速度制御回路52と制御電動機53とパルス
コーダ・レゾルバ等の位置検出装置54と回転計等の速
度検出装置55とを有し、各制御軸方向成分Cに追従し
て制御されて電極送りをなす。
Referring to FIG. 2, 1 is a processing electrode, and 2 is a workpiece. Reference numeral 3 denotes a servo feed device, which receives the electric discharge machining voltage between the machining electrode 1 and the workpiece 2 detected by the electric discharge voltage detection means 12 and outputs forward/backward commands A. Reference numeral 4 denotes a distribution processing device which receives the forward/backward command A and the three-dimensional position command B inputted with numerical information, etc., and distributes the three-dimensional position command B to each control axis direction component C. 5 is a position/speed control device 5 for driving each control shaft, which includes a position control circuit 51, a speed control circuit 52, a control motor 53, a position detection device 54 such as a pulse coder/resolver, and a speed detection device 55 such as a tachometer. The electrodes are controlled to follow each control axis direction component C to feed the electrode.

〔発明が解決しようとする問題点〕[Problem that the invention seeks to solve]

たC2上記の分配処理装置4の処理速度は一般に必ずし
も速くはなく、数ミリ秒を要する場合が多い。そのため
、サーボフィード装置3が前進・後退の指令Aを出力し
てから電極送りが実行されるまでに20ミリ秒程度を要
し、加工速度・電極消耗等の点で改良の余地があり、こ
れらの欠点のない放電加工機用加工電極送り制御装置の
開発が望まれていた。
C2 The processing speed of the distribution processing device 4 described above is generally not necessarily fast, and often requires several milliseconds. Therefore, it takes about 20 milliseconds from the time the servo feed device 3 outputs the forward/backward command A until the electrode feed is executed, and there is room for improvement in terms of machining speed, electrode wear, etc. It has been desired to develop a machining electrode feed control device for electrical discharge machines that does not have these drawbacks.

本発明の目的は、この要請に応えて、加工速度が速く、
電極消耗の少ない放電加工機用加工電極送り制御装置を
提供することにある。
The purpose of the present invention is to meet this demand by achieving high processing speed and
It is an object of the present invention to provide a machining electrode feed control device for an electrical discharge machine with less electrode consumption.

〔問題点を解決するための手段〕[Means for solving problems]

上記の目的を達成するために本発明が採った手段は、放
電加工電圧を入力されて前進・後退の指令Aを発生する
サーボフィード装置3と、このサーボフィード装置3の
出力する前進・後退の指令Aと三次元位置指令Bとを入
力されてこの三次元位置指令Bを各制御軸方向成分Cに
分配する分配処理装置4と、この分配処理装置4の出力
する前記の各制御軸方向成分Cに追従して制御される各
制御軸駆動用位置・速度検出装置5とを有する放電加工
機用加工電極送り制御装置において、前記の分配処理装
置4は各制御軸方向成分の比りを出力し、前記の分配処
理装置4と前記の各制御軸駆動用位置・速度制御装置5
との間には、前記の各制御軸方向成分の比りと前記の前
進・後退の指令Aとを入力されて各制御軸駆動用位置指
令Eを発生する積算器6を介在することとしたことにあ
る。
The means adopted by the present invention to achieve the above object are a servo feed device 3 which receives an electric discharge machining voltage and generates a forward/backward command A, and a forward/backward command A which is output from this servo feed device 3. A distribution processing device 4 that receives a command A and a three-dimensional position command B and distributes the three-dimensional position command B to each control axis direction component C, and the above-mentioned control axis direction components output from this distribution processing device 4. In the machining electrode feed control device for an electrical discharge machine having a position/speed detection device 5 for driving each control axis controlled by following C, the distribution processing device 4 outputs a ratio of the components in the direction of each control axis. The above-mentioned distribution processing device 4 and the above-mentioned position/speed control device 5 for driving each control axis
An integrator 6 is interposed between the control shaft and the control shaft, which receives the ratio of the direction components of each control axis and the forward/backward command A and generates a position command E for driving each control shaft. There is a particular thing.

〔作用〕[Effect]

上記の欠点は、分配処理装置4の処理速度が、他の要素
の制御速度に比し十分速くないことに起因する。そこで
1本発明においては、分配処理装置4の負担を軽減して
分配処理装置4の処理時間を減少し、結果的に、加工速
度を向上したものである。具体的には、分配処理装置4
と各制御軸駆動用位置・速度制御装置5との間に積算器
6を介在しておき、前進・後退の指令Aは、分配処理装
置4の他にこの積算器6にも入力することとし、一方、
分配処理装置4の負担は、各制御軸方向位置指令Eでは
なく各制御軸方向成分の比りの出力と、かなり軽減して
おき、分配処理装置4の処理時間を減少したものである
The above drawback is due to the fact that the processing speed of the distribution processing device 4 is not sufficiently fast compared to the control speed of other elements. Therefore, in the present invention, the load on the distribution processing device 4 is reduced, the processing time of the distribution processing device 4 is reduced, and the processing speed is improved as a result. Specifically, the distribution processing device 4
An integrator 6 is interposed between the control shaft drive position/speed control device 5 and each control axis drive position/speed control device 5, and the forward/reverse command A is input to this integrator 6 in addition to the distribution processing device 4. ,on the other hand,
The load on the distribution processing device 4 is considerably reduced by outputting the ratio of each control axis direction component instead of each control axis direction position command E, and the processing time of the distribution processing device 4 is reduced.

したがって、サーボフィード装置3によって前進・後退
の指令Aが出力されると、この前進・後退の指令Aは、
分配処理装置4と積算器6とに入力される。このとき、
分配処理装置4はいくらかの処理時間の後、各制御軸方
向成分の比りを出方する。一方、積算器6は、そのとき
積算器6に入力されている各制御軸方向成分の比D(い
くらか前に入力された前進・後退の指令に応答する各制
御軸方向成分の比D)にもとづいて各制御軸方向位置指
令Eを出力する。継続して前進・後退の指令Aが出力さ
れると、J1続して各制御軸方向位置指令Eは発せられ
るが、この各制御軸方向位置指令Eは数パルス前の前進
・後退の指令Aに応答するものである。したがって、加
工電極の送り経路が鋭角的に屈曲するときは、所望の送
り経路を忠実にトレースしえない例外的場合はあるが、
加工速度は大幅に向上する。
Therefore, when the forward/backward command A is output by the servo feed device 3, this forward/backward command A is
The signal is input to the distribution processing device 4 and the integrator 6. At this time,
After some processing time, the distribution processing device 4 calculates the ratio of each control axis direction component. On the other hand, the integrator 6 calculates the ratio D of each control axis direction component input to the integrator 6 at that time (the ratio D of each control axis direction component in response to the forward/reverse command input some time ago). Based on this, each control axis direction position command E is output. When the forward/backward command A is output continuously, each control axis direction position command E is issued in succession, but each control axis direction position command E is the same as the forward/backward command A several pulses earlier. It is a response to Therefore, when the feed path of the processing electrode bends at an acute angle, there are exceptional cases in which the desired feed path cannot be faithfully traced.
Machining speed is greatly improved.

〔実施例〕〔Example〕

以下、図面を参照しつ一1本発明に係る放電加工機用加
工電極送り制御装置についてさらに説明する。
Hereinafter, the machining electrode feed control device for an electric discharge machine according to the present invention will be further explained with reference to the drawings.

第1図参照 1は加工電極であり、2は被加工体である。3はサーボ
フィード装置であり、放電検出手段12によって検出さ
れる加工電極1と被加工体2との間の放電加工電圧を入
力されて前進争後退の指4Aを出力する。4は分配処理
装置であり前進・後退の指令Aと数値情報等をもって入
力される三次元位差指令Bを入力されて、この三次元位
置指令Bを各制御軸方向成分Cに分配する。た(、本発
明においては、分配処理装置4は各軸方向位差指令Eで
はなく各制御軸方向成分の比りを出力する。
Referring to FIG. 1, 1 is a processing electrode, and 2 is a workpiece. Reference numeral 3 denotes a servo feed device, which receives the electric discharge machining voltage between the machining electrode 1 and the workpiece 2 detected by the electric discharge detection means 12 and outputs forward and backward fingers 4A. Reference numeral 4 denotes a distribution processing device which receives the forward/backward command A and the three-dimensional position command B inputted with numerical information, etc., and distributes the three-dimensional position command B to each control axis direction component C. (In the present invention, the distribution processing device 4 outputs not the position difference command E in each axis direction but the ratio of each control axis direction component.

6は積算器であり、サーボフィード装置3の出力する前
進・後退の指令Aと分配処理装置4の出方する各制御軸
方向成分の比りとを入力されて各制御軸駆動用位置指令
Eを出力する。5は各制御軸駆動用位置φ速度制御装置
であり、位置制御回路51と速度制御回路52と制御電
動機53とパルスコータ・レソルへ等の位置検出装置5
4と回転計等の速度検出装置55とを有し各制御軸駆動
用位置指令Eを入力されて電極送りをなす。
Reference numeral 6 denotes an integrator, which inputs the forward/backward command A output from the servo feed device 3 and the comparison of each control axis direction component output from the distribution processing device 4, and outputs a position command E for driving each control axis. Output. 5 is a position φ speed control device for driving each control axis, which includes a position control circuit 51, a speed control circuit 52, a control motor 53, and a position detection device 5 for pulse coater/resol, etc.
4 and a speed detection device 55 such as a tachometer, and receives position commands E for driving each control shaft to feed the electrodes.

以上説明せる放電加工機用加工電極送り制御装置におい
ては1分配処理装置4の負担が軽減されているので、分
配処理装置4の処理時間が短く、それだけ加工速度が向
−トしている。
In the machining electrode feed control device for an electric discharge machine described above, the burden on the single distribution processing device 4 is reduced, so the processing time of the distribution processing device 4 is shortened, and the machining speed is increased accordingly.

〔発明の効果〕〔Effect of the invention〕

以上説明せるとおり、本発明に係る放電加工機用加工電
極送り制御装とは、放電加工電圧を入力されて前進−後
退の指令を発生するサーボフィード装置と、このサーボ
フィード装置の出力する前進・後退の指令と三次元位置
指令とを入力されてこの三次元位置指令を各制御軸方向
成分に分配する分配処理装ごと、この分配処理装置の出
力する前記の各制御軸方向成分に追従して制御される各
制御軸駆動用位n・速度制御装置とを有する放電加工機
用加工電極送り制御装置において、前記の分配処理装置
は各制御軸方向成分の比を出力し、前記の分配処理装置
と前記の各制御軸駆動用位置Φ速度制御装置との間には
、前記の各制御軸方向成分の比と前記の前進・後退の指
令とを入力されて各制御軸駆動用位置指令を発生する積
算器を介在することとされているので、分配処理装置の
負担がいくらか軽減され、それだけ加工速度が向上し、
しかも、電極の消耗が減少する。
As explained above, the machining electrode feed control device for an electrical discharge machine according to the present invention includes a servo feed device that receives an electrical discharge machining voltage and generates forward/backward commands, and a forward/backward command output from the servo feed device. Each distribution processing device that receives the backward command and three-dimensional position command and distributes the three-dimensional position command into each control axis direction component follows each of the control axis direction components output from this distribution processing device. In a machining electrode feed control device for an electrical discharge machine having a drive position and speed control device for each control axis to be controlled, the distribution processing device outputs a ratio of a component in the direction of each control axis, and the distribution processing device The ratio of the direction components of each control axis and the forward/backward commands are input between the position Φ speed controller for driving each control axis and the position command for driving each control axis is input. Since an integrator is required to intervene, the burden on the distribution processing device is somewhat reduced, and the processing speed is increased accordingly.
Moreover, electrode wear is reduced.

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

第1図は、本発明の一実施例に係る放電加工機用加工電
極送り制御装置のブロック図である。 第2図は、従来技術に係る放電加工機用加工電極送り制
御装置のブロック図である。 1・・・加工電極、    2・・・被加工体、12拳
・・放電電圧検出手段、   3・争拳サーボフィード
装置、  4・・・分配処理装置、5Φ・・各制御軸駆
動用位置・速度制御装置、51−−−位置制御回路、 
 52會・・速度制御回路、 53−・・制御電動機、
 54・◆・位置検出装置(パルスコータeレゾルへ等
)、 55・・φ速度検出装置(回転計等)、   A
−φ争前進・後退の指令、    B−・φ三次元位差
指令、C・・・各制御軸方向成分、 D・・−各制御軸
方向成分の比、 E−會φ各制御軸方向位jδ指令。
FIG. 1 is a block diagram of a machining electrode feed control device for an electric discharge machine according to an embodiment of the present invention. FIG. 2 is a block diagram of a machining electrode feed control device for an electrical discharge machine according to the prior art. DESCRIPTION OF SYMBOLS 1... Machining electrode, 2... Workpiece, 12... Discharge voltage detection means, 3... Kaiken servo feed device, 4... Distribution processing device, 5Φ... Position for driving each control axis. Speed control device, 51---position control circuit,
52--Speed control circuit, 53--Control motor,
54・◆・Position detection device (pulse coater e-resol, etc.), 55.・φ speed detection device (tachometer, etc.), A
- φ conflict forward/backward command, B-・φ three-dimensional position difference command, C... each control axis direction component, D... - ratio of each control axis direction component, E- φ each control axis direction position jδ command.

Claims (1)

【特許請求の範囲】 放電加工電圧を入力されて前進・後退の指令(A)を発
生するサーボフィード装置(3)と、 該サーボフィード装置(3)の出力する前進・後退の指
令(A)と三次元位置指令(B)とを入力されて該三次
元位置指令(B)を各制御軸方向成分(C)に分配する
分配処理装置(4)と、該分配処理装置(4)の出力す
る前記各制御軸方向成分(C)に追従して制御される各
制御軸駆動用位置・速度制御装置(5)とを有する放電
加工機用加工電極送り制御装置において、 前記分配処理装置(4)は各制御軸方向成分の比(D)
を出力する手段を有し、 前記分配処理装置(4)と前記各制御軸駆動用位置・速
度制御装置(5)との間には、前記各制御軸方向成分の
比(D)と前記前進・後退の指令(A)とを入力されて
各制御軸駆動用位置指令(E)を発生する積算器(6)
が介在してなることを特徴とする放電加工機用加工電極
送り制御装置。
[Claims] A servo feed device (3) that receives an electric discharge machining voltage and generates forward/backward commands (A), and a forward/backward command (A) output from the servo feed device (3). and a three-dimensional position command (B), and a distribution processing device (4) that distributes the three-dimensional position command (B) to each control axis direction component (C), and an output of the distribution processing device (4). A machining electrode feed control device for an electric discharge machine, comprising: a position/speed control device (5) for driving each control axis that is controlled in accordance with each control axis direction component (C), wherein the distribution processing device (4) ) is the ratio of each control axis direction component (D)
Between the distribution processing device (4) and the position/speed control device (5) for driving each control axis, the ratio (D) of each control axis direction component and the forward・An integrator (6) that receives a backward command (A) and generates a position command (E) for driving each control axis.
1. A machining electrode feed control device for an electric discharge machine, characterized in that:
JP22366985A 1985-10-09 1985-10-09 Feed control device for machining electrode of electric discharge machine Pending JPS6284925A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP22366985A JPS6284925A (en) 1985-10-09 1985-10-09 Feed control device for machining electrode of electric discharge machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP22366985A JPS6284925A (en) 1985-10-09 1985-10-09 Feed control device for machining electrode of electric discharge machine

Publications (1)

Publication Number Publication Date
JPS6284925A true JPS6284925A (en) 1987-04-18

Family

ID=16801793

Family Applications (1)

Application Number Title Priority Date Filing Date
JP22366985A Pending JPS6284925A (en) 1985-10-09 1985-10-09 Feed control device for machining electrode of electric discharge machine

Country Status (1)

Country Link
JP (1) JPS6284925A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5589086A (en) * 1993-02-05 1996-12-31 Fanuc Ltd. Method and apparatus for electrical discharge machining with control of a servomechanism by a position loop and a speed loop

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5589086A (en) * 1993-02-05 1996-12-31 Fanuc Ltd. Method and apparatus for electrical discharge machining with control of a servomechanism by a position loop and a speed loop

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