JPH0230432A - Discharge processing unit - Google Patents

Discharge processing unit

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Publication number
JPH0230432A
JPH0230432A JP17871388A JP17871388A JPH0230432A JP H0230432 A JPH0230432 A JP H0230432A JP 17871388 A JP17871388 A JP 17871388A JP 17871388 A JP17871388 A JP 17871388A JP H0230432 A JPH0230432 A JP H0230432A
Authority
JP
Japan
Prior art keywords
automatic positioning
electrode
workpiece
positioning
speed
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.)
Granted
Application number
JP17871388A
Other languages
Japanese (ja)
Other versions
JP2536597B2 (en
Inventor
Sadafumi Shichizawa
七沢 禎文
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 JP63178713A priority Critical patent/JP2536597B2/en
Publication of JPH0230432A publication Critical patent/JPH0230432A/en
Application granted granted Critical
Publication of JP2536597B2 publication Critical patent/JP2536597B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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

Abstract

PURPOSE:To facilitate appending, revising, correction of a method, by forming a first storage part in which what is difficult to stabilize for its complicated control model is stored independently. CONSTITUTION:A logical part 42 can determine more accurate finishing position in automatic positioning by executing the automatic positioning based on complicated know how of positioning through synthesizing the control input obtained by a plurality of procedure, and by synthesizing the results obtained by a plurality of methods as well. Further, in a first storage part 41, a procedure for positioning and a method of discrimination of the results obtained by automatic positioning if it is good or bad are stored independently from the logical part 42. In this way, to facilitate appending or revising of a method is possible.

Description

【発明の詳細な説明】[Detailed description of the invention]

〔産業上の利用分針〕 この発明は、放電加工装置の自動位置決め制御装置に関
し、特に作業者の位置決めノウハウ等、最適な位置決め
手順、正確な自動位置決め判定を夾現するtコめの複数
の手法を記憶し、これに基づいて自動位置決めを行うこ
とにより、常に正確な自動位置決めが可能とするように
したものである。 〔従来の技術〕 第7図は従来の放電加工機の構成図である。図に於て、
(1)は加工電極、(2)は被加工物、(3)は加工槽
、(4)は加工液、(5)はZ軸、(6)は駆動モータ
、(7)は速度及び位置検出器、(8)(9)はX及び
Y軸、α0(11)は同駆動モータ、(2)αJは同速
度及び位置検出器、f2℃は電極位置制御部、(ハ)は
加工電源、@は検出風処理部、0ηは数値制御装置(以
下、NCと言う)、6旧よCRT及びキーボード、(至
)は紙テープリーダ等I10装置である。 次に動作について説明する。自動位置決めはI′JC6
1)から加工電源いに対して放電加工とは異るCば流低
電圧を印加する指令を発し、電極位置制御部0侃こ対し
て指定の軸の棺定方向の移動指令を発する。電線(1)
と被加工物(2)IN+の接触を検出値処卵部@で検出
したところでNC(31iは、加工電源器と電極位置制
御部□□□に対する指令を止め、自動位置決め完了とす
る。 ここで、この自動位置決めはJ〜CO])の持つ基本機
能であり、作業者はこの自動位置決め機能を組み合わせ
て、l’M(1)と被加工物(2)の相対位置合わせを
行ったり、電、極の芯ズレ量を測定している。 作業者が行う上記相対位置合わせや測定は、電極(1)
及び被カロエ物(2)の形状、基准値(こより位置決め
手順は一意的には定まらず、作業者がω去の経験から最
適と思われる位置決め手順で行わnる。また、NCe1
)が行う自動位置決めの結果の良否判別も作業者の1置
去の軽験から自動位V行決めの複数回の平均値とか、自
動位置決め複数回の最深値とか、自動位置決み数回連続
同一値などの結果で判断している。位置決め手順は、電
!(1)及び被加工物(2)の形状、基準面が同一の場
合、NCプログラムにて手順をプログラムして実行する
ことが多いが、自動位置決めの結果良否判別は作業者に
よる判別はできず、N Oの持つ自動位11π(矢めの
能力に依存する。従って、自動運転での位置決め及び測
定時は何らかの外乱要因で基準面が汚f1だような場合
に正常な位置決め及び測定結果が得ら第1.ない。また
、位置決め手順では、自動位置決めの送り速度や回数は
作業者のノウハウである。 〔発明が解決しようとする課題〕 従来の自動位置決め制御装置はり、上のように構成され
ているので、作T者は常に位置決め手順をNCに指示し
なければならず、甘1こ、自動位置決め結果の良否判別
がチエツクでき]1゛、NOが持つ自動位置決めの能力
にのみ依存し、f¥業者の持つ位置決め測定のノウハウ
は自動ぜ転に反映さオ′1ないという課題があった。 この発明は、上記のような課題を解消する為になされた
もので、電極と被加工物の形状 基準面等に応じて複数
の位置決め手順から最適な自動位置決め速度、自動位置
決め回数を決定できると共に、自動位置決め結果の良否
判別が、作業者が行うのと同じルールの基でチエツクで
きる自動位置決め制御装置を得ることを目的とする。 〔課題を解決するTコめの手段〕 この発明
[Industrial Application Minute Hand] The present invention relates to an automatic positioning control device for electrical discharge machining equipment, and in particular, a plurality of methods that incorporate operator positioning know-how, optimal positioning procedures, and accurate automatic positioning judgment. By storing the information and performing automatic positioning based on this, accurate automatic positioning is always possible. [Prior Art] FIG. 7 is a block diagram of a conventional electric discharge machine. In the figure,
(1) is the machining electrode, (2) is the workpiece, (3) is the machining tank, (4) is the machining fluid, (5) is the Z axis, (6) is the drive motor, and (7) is the speed and position. Detector, (8) (9) are X and Y axes, α0 (11) is the same drive motor, (2) αJ is the same speed and position detector, f2℃ is the electrode position control unit, (C) is the processing power source , @ is a detected wind processing unit, 0η is a numerical control device (hereinafter referred to as NC), 6 is an old CRT and keyboard, and (to) is an I10 device such as a paper tape reader. Next, the operation will be explained. Automatic positioning is I'JC6
1) issues a command to the machining power source to apply a C-flow low voltage different from that used in electrical discharge machining, and issues a command to the electrode position control unit 0 to move the designated axis in the positioning direction. Electric wire (1)
When contact between the workpiece and the workpiece (2) IN+ is detected by the detected value processing section, the NC (31i) stops commands to the processing power supply and the electrode position control section □□□, and the automatic positioning is completed. , this automatic positioning is a basic function of J~CO]), and the operator can combine this automatic positioning function to perform relative positioning between l'M (1) and workpiece (2), and , the amount of misalignment of the poles is measured. The above relative positioning and measurements performed by the operator are performed using the electrode (1).
and the shape and standard value of the object to be eroded (2) (The positioning procedure is not uniquely determined from this, and the operator performs the positioning procedure in accordance with the positioning procedure that is considered to be optimal based on past experience.In addition, NCe1
) can determine whether the results of automatic positioning are good or bad by measuring the average value of multiple automatic positioning V-rows, the deepest value of multiple automatic positionings, or the lowest value of automatic positioning several times in a row, based on the worker's slight experience of one place. Judgments are made based on results such as identical values. The positioning procedure is electric! When the shapes and reference surfaces of (1) and workpiece (2) are the same, the procedure is often programmed and executed using an NC program, but it is not possible for the operator to determine whether the automatic positioning results are good or bad. , NO's automatic position 11π (depends on the ability of the arrow. Therefore, during positioning and measurement in automatic operation, if the reference surface is dirty f1 due to some disturbance factor, normal positioning and measurement results cannot be obtained. In addition, in the positioning procedure, the feed rate and number of times of automatic positioning are determined by the know-how of the operator. [Problems to be solved by the invention] Conventional automatic positioning control devices are configured as above. Therefore, the operator must always instruct the NC on the positioning procedure, and can check whether the automatic positioning results are good or bad] 1) It depends only on the automatic positioning ability of the NO, There was a problem in that the positioning and measurement know-how possessed by f\ companies was not reflected in automatic rotation.This invention was made to solve the above problems. The shape of the automatic positioning system allows you to determine the optimal automatic positioning speed and number of automatic positionings from multiple positioning procedures depending on the reference surface, etc., and also allows you to determine whether the automatic positioning results are good or bad based on the same rules as those used by the operator. The purpose is to obtain a control device. [Top means for solving the problem] This invention

【こ係る放電加工機の自動位置決め制御装置は、複数の位置決め手順と、複数の自動位置決め結果の良否判別方法を記憶する記憶部と、複数の手順方法により得られる操作量及び自動位置決完了位置を決定する論理部とを具備しf:、ものである。 〔作 用〕[This automatic positioning control device for an electric discharge machine includes a storage unit that stores a plurality of positioning procedures, a method for determining the quality of a plurality of automatic positioning results, and an operation amount and an automatic positioning completion position obtained by the plurality of procedure methods. and a logic unit for determining f:. [For production]

この発明における放電加工機の自動位置決め制御装置の
論理部は、複数の手+1[l’により得られる操作量を
合成する事により、複雑な位置決めノウハウに基づいた
自動位置決めを実現するものであり、まtこ、複数の方
法により得られる結果を合成する事により、より正確な
自動位置決め完了位置を決定するものである。更に記憶
部には、位置決め手順及び自動位置決め結果の良否判別
方法を論理部とは、独立して記憶することにより、方法
の追加。 変更が容易に行えるようにしたものである。 〔発明の突施例〕 以下、この発明の一笑施例を図について説、811する
。第1図において、い)〜33は従来装置と同−又は相
当する部分、又は機能、(ト)は自動位置決め制御装置
、いDは位置決め手順及び自動位置決め結果の良否判別
方法を記憶する第1の記憶部、嵯は位置決めの対象とな
る電極(1)及び被加工物(2)の状況と、自動位置決
め中の状況を記憶する第2の記憶部、14′2は倫理部
である。 次に動作について説明する。位置決め手111n及び自
動位置決め結果の良否判別方法を記′宜した第1の記憶
部は刀には、第2図(a)及び(b)に示すような自動
位置決め速度、自動位置決め回数を決定する方法が複数
個記憶されており、更に第5図に示すような自動位置決
め結果から自動位置決め完了位置を決定する方法が複数
個記憶されている。第2図(a)におりで、方法1は、
′成(菫径の大きさにより自動位置決め速度を決定する
もので、細い電極の自動位置決め速度は極めて遅く、太
い電極の自動位置決め速度は極めて速くなるように、自
動位置決め速度をいくつかの段階に分ける。方法2は、
接触面積から自動位置決め速度を決定する方法を示して
いる。即ち、接触面積が小さく鋭っているものは自動位
置決め速度は極めて遅く、接触面積が大きめものは、自
動位置決め速度を極めて速くなるように自動位置決め速
度をいくつかの段階に分ける。また、方法8は、自動位
置決めで移動する距離、即ち空走するアプローチ距離か
ら自動位置決め速度を決定する方法を示している。即ち
、アプローチ距離が長く遠くから自動位置決めを行う場
合は、速度を極めて速く、アプローチ距離が短く、近接
して自動位置決めを行う場合は、速度を極めて遅くなる
ように自動位置決め速度をいくつかの段階に分ける。 第2図中)fこおいて、方法1は、接触面積から自動位
置決め回数を決定するもので、接触面積が小さく、鋭っ
ているものは、1回の自動位置決めで接触面積が大きく
面対面で自動位置決めするような場合は、数回の自動位
置決めを行うように、自動位置決め回数をいくつかの段
階に分ける。方法2は、接触面粗度から、自動位置決め
回数を決定する方法を示している。鏡面のように細やか
な接触面粗度の場合は、1回の自動位置決めで、加工後
の電極のように荒い接触面粗度の場合は数回の自動位置
決めを行うように自動位置決め回数をいくつかの段階に
分ける。更に、方法3は、自動位置決め速度から、自動
位置決め回数を決定する方法を示している。即ち、速け
れば、数回行い、遅ければ1回行うことを示している。 上記の自動位置決め速度、自動位置決め回数の決定方法
は、作業者のノウハウであり、即ち、第1の記ta部0
1〕には該ノウハウが記憶されている。 第8図は、論理部02により、第1の記憶部0旧こ記憶
されている方法及び第2の記憶部(ハ)に記憶されてい
る自動位置決めの対象となる電極と被加工物の状況から
、最適な自動位置決め速度と、自動位置決め回数を決定
する方法を示したフローチャー1−である。−1f論理
部(ハ)は、第1の記憶部0】)より方法】を読込み、
第2の記憶部的に記憶されている電極径の大きさに応じ
て、方法1による自動位置決め速度F1 を得る。次に
方法2を読込み第2の記憶部(転)に記憶さflている
接触面積の大ささに応じて方法2による自動位置決め速
度]I′2 を得る。同様に、方法3により自動位置決
めで七度F3を得る。次に、この3つの方法(こより得
られた3つの結果を合す文することにより、自動位置決
め速度Ft、が決定される。この合成は、例えば次の(
1)式のようζこ各々の結果の平均をとることにより行
われる。 J Ft=−Σ Fk   ・・・・・−(1)N  k:
1 N、)二対象jに対オろ方法の総数 次に、対象を使えて、次の対象の方法1を読み込み、第
2の記憶部■に記憶されている接触面積の大≧さに応じ
て方法1による自動位置決め回数T1を得る。次に方法
2を読み込み第2の記憶部(ぺ3に記憶されている接触
面粗度の大きさに応じて方法2による自動位置決め回数
T2 を得る。同様に、方法31こより自動位置決め同
数1゛3 を得る。 次に、この3つの方法(こより得られ1こ8つの結果を
合成して自動位置、失め回数Ttが決定さ)する。 この合成は、前記(1)式と同様に各々の結果の平均よ をとることに弁ら。 Nj:対ff1jに対オろ方γ去の〆号数ここで、上記
に述べ1こ第2の記憶部(ト)から、成極と被加工物の
状況を読みとるが、この第2の記憶部(ハ)(こけ、電
極径、電極と被加工物の接触面積。 自動位置決め開始時の電極と被加工物間の距離(アプロ
ーチ短慮)、電極と被加工物の面粗度、前記(1)式で
求められた自動位置決め速度が、第4図に示す如く、記
憶されているうこれらの1〕は予め設定されている。 以上の結果から求めらfl、′rこ自動位置決め速度及
び回数で実行し、その自動位置決め結果から、自動位置
決め完了位置を求める。その求め方法は、第1の記憶部
(財)に記憶されている。第5図に示すような複数個の
方法を用いて行う。第5図において、方法1は、自動位
置決め平均バラツキ値により完了位置の確信度を決定す
る。方法2(J、自動位置決めの最大バラツキ巾により
、完了位置の確信度を決定する。方法3は、自動位置決
めの完了時電圧から完了位置の確信度を決定する。即ち
、電極と被加工物が接触している時は、その位置を自動
位置決め完了位置と才る鷹信度は極めて高く、逆に電極
と被加工物が1囃れていて、両者間の電圧がオープンの
場合は、該確信度は極めて低い。論理部嘔は第1の記憶
部C41)に記憶さ石でいる方法及び第2の記憶部口3
に記憶さn9ている、自動位置決めの結果から、自動位
置決め完了位置とする確信度を決定する。その決定方法
(オ、第3図すこ示すフローチャートと同等である。こ
の方法により求められた確信度をもとに第6図に示すフ
ローチャートに従い、自動位置決め完了位置を決定する
。 尚、上記実施例では、第1の記憶部I4]lIよ、電極
径、接触面積、アプローチ距離の3種類の判定方法から
自動位置決め速度を、また、接触面積、接触面粗度、自
動位置決め速度の3種類の判定方法から、自動位置決め
回数を求める方法が記憶さ口ているが、油中又はZ中の
ような環境汚れ具合。 電極もしくは被加工物の導電率などを用いて検出しても
良い。lqtこ、こnらから自動位置決め時の印加電圧
を決定する方法等を付加しても良い。 まfコ、上記実施例では、論理部(ハ)における結果の
合成手法として(1)式を用いtこが、で固々方法に対
する結果の止み付は平均、最大値、最小値等各種の方法
を用すて合成しても良い。 −まfコ、第1の記憶部、第2の記憶部及び論理部は、
ファジールールに従った記述で、推檜によるアルゴリズ
ムにより構成しても良い。また第1の記憶部、第2の記
憶部、論理部は、数値制愼1装置内で構成しても良い。 まtこ、電極と被加工物の位置決め検出手段として、電
気的接触を用いたが、レニンヨー等の物即的接触検出で
も、レーザーによる非接触検出でも良い。 〔発明の効果〕 以上のように、この発明によれば、位置決ぬのノウハウ
等の人間が実施すればできるが、制御モデルが複雑で固
定化しにくいものを第1の記憶部に独立して記憶させる
ことにより、方法の追加。 変更、修正が容易になるとともに、論理部o2により複
数の方法より得られる結果を合成することにより種々の
要因を考慮しtこ、より適切な結果が得られ、より安定
で、精度の高いものが得られる効果がある。
The logic section of the automatic positioning control device for an electric discharge machine in this invention realizes automatic positioning based on complicated positioning know-how by synthesizing the operation amount obtained by a plurality of hands + 1 [l', By combining the results obtained by multiple methods, a more accurate automatic positioning completion position can be determined. Furthermore, the method can be added by storing the positioning procedure and the method for determining the quality of the automatic positioning result independently of the logic section in the storage section. This allows for easy changes. [Embodiments of the Invention] Hereinafter, embodiments of the present invention will be described with reference to the drawings. In FIG. 1, I) to 33 are the same or equivalent parts or functions as the conventional device, (G) is an automatic positioning control device, and D is a first controller that stores the positioning procedure and the method for determining the quality of automatic positioning results. A storage section 14'2 is a second storage section that stores the conditions of the electrode (1) and workpiece (2) to be positioned, and a situation during automatic positioning, and 14'2 is an ethics section. Next, the operation will be explained. The first storage section, which stores the positioning means 111n and the method for determining the quality of automatic positioning results, determines the automatic positioning speed and number of times of automatic positioning as shown in FIGS. 2(a) and (b). A plurality of methods are stored, and a plurality of methods for determining the automatic positioning completion position from the automatic positioning results as shown in FIG. 5 are also stored. As shown in Figure 2(a), method 1 is
The automatic positioning speed is determined by the size of the violet diameter, and the automatic positioning speed is divided into several stages so that the automatic positioning speed for thin electrodes is extremely slow and the automatic positioning speed for thick electrodes is extremely fast. Separate.Method 2 is
A method for determining automatic positioning speed from contact area is shown. That is, when the contact area is small and sharp, the automatic positioning speed is extremely slow, and when the contact area is large, the automatic positioning speed is divided into several stages so that the automatic positioning speed is extremely fast. Further, method 8 shows a method of determining the automatic positioning speed from the distance traveled during automatic positioning, that is, the approach distance during idle running. In other words, if the approach distance is long and automatic positioning is to be performed from a distance, the speed is set to extremely high speed, and if the approach distance is short and automatic positioning is to be performed from a close distance, the automatic positioning speed is set to extremely slow speed. Divide into In Fig. 2) f, method 1 determines the number of times of automatic positioning from the contact area, and if the contact area is small and sharp, the contact area is large and the surface is fixed in one automatic positioning. When performing automatic positioning, the number of times of automatic positioning is divided into several stages so that automatic positioning is performed several times. Method 2 shows a method of determining the number of automatic positioning operations from the contact surface roughness. If the contact surface roughness is fine like a mirror surface, one automatic positioning is required, and if the contact surface roughness is rough like an electrode after processing, automatic positioning is performed several times. Divide into stages. Furthermore, method 3 shows a method of determining the number of times of automatic positioning from the automatic positioning speed. That is, if it is fast, it is performed several times, and if it is slow, it is performed once. The method of determining the automatic positioning speed and the number of times of automatic positioning described above is the know-how of the operator, that is, the first
1] stores the know-how. FIG. 8 shows the method stored in the first storage section 0 by the logic section 02 and the situation of the electrode and workpiece to be automatically positioned stored in the second storage section (c). Flowchart 1- shows a method for determining the optimum automatic positioning speed and the number of times of automatic positioning. -1f logic unit (c) reads method] from the first storage unit 0]),
The automatic positioning speed F1 according to method 1 is obtained according to the size of the electrode diameter stored in the second storage section. Next, method 2 is read and the automatic positioning speed [I'2] according to method 2 is obtained according to the size of the contact area stored in the second storage section. Similarly, according to method 3, 7 degrees F3 is obtained by automatic positioning. Next, by combining the three results obtained from these three methods, the automatic positioning speed Ft is determined.
1) This is done by taking the average of the results of each ζ as shown in Equation 1). J Ft=-Σ Fk...-(1) Nk:
1 N,) Total number of methods for two objects j Next, using the object, read method 1 of the next object, and according to the size of the contact area stored in the second storage part ≧ Then, the number of times T1 of automatic positioning by method 1 is obtained. Next, method 2 is read and the number of times T2 of automatic positioning by method 2 is obtained according to the magnitude of the contact surface roughness stored in the second storage section (P3).Similarly, the same number of times T2 of automatic positioning by method 31 is obtained. 3 is obtained.Next, these three methods (combining the 1 and 8 results obtained from these methods determine the automatic position and the number of lost times Tt).This combination is performed for each of It is worth taking the average of the results. Nj: the final number of the pair ff1j and the pair γ The situation of the object is read, but this second memory section (c) (moss, electrode diameter, contact area between the electrode and the workpiece. The distance between the electrode and the workpiece at the start of automatic positioning (short approach), the electrode , the surface roughness of the workpiece, and the automatic positioning speed determined by the equation (1) above are stored in memory as shown in FIG. 4. From the above results, The automatic positioning is performed at the automatic positioning speed and number of times fl, 'r, and the automatic positioning completion position is determined from the automatic positioning results.The method of determination is stored in the first storage unit.Fifth This is carried out using several methods as shown in the figure. In Figure 5, method 1 determines the certainty of the completed position based on the average variation value of automatic positioning. Method 2 (J) determines the certainty of the completed position based on the maximum variation width of automatic positioning. , the certainty of the completed position is determined.Method 3 determines the certainty of the completed position from the voltage at the completion of automatic positioning.That is, when the electrode and the workpiece are in contact, the position is determined by automatic positioning. The confidence in knowing the completed position is extremely high; on the other hand, if the electrode and workpiece are moving and the voltage between them is open, the confidence is extremely low. The method of being a stone stored in the memory section C41) and the second memory section 3
Based on the results of automatic positioning stored in n9, the degree of certainty for determining the position where automatic positioning has been completed is determined. The determination method (E) is equivalent to the flowchart shown in FIG. 3. Based on the reliability obtained by this method, the automatic positioning completion position is determined according to the flowchart shown in FIG. 6. Now, the first memory section I4]lI, determine the automatic positioning speed from three types of determination methods: electrode diameter, contact area, and approach distance, and also determine the automatic positioning speed from three types of determination methods: contact area, contact surface roughness, and automatic positioning speed. I remember how to calculate the number of times of automatic positioning from the method, but it is also possible to detect environmental contamination such as in oil or Z.It is also possible to detect by using electrodes or the conductivity of the workpiece. A method for determining the applied voltage during automatic positioning may be added from these. In the above embodiment, formula (1) is used as a method for synthesizing the results in the logic section (c). However, the results for the fixed method may be synthesized using various methods such as average, maximum value, minimum value, etc. The logic department is
The description may be based on fuzzy rules and may be constructed using an algorithm based on Hinoki. Further, the first storage section, the second storage section, and the logic section may be configured within the numerical control device 1. Although electrical contact was used as the means for detecting the positioning of the electrode and the workpiece, it may be an immediate contact detection such as a Renninyo or a non-contact detection using a laser. [Effects of the Invention] As described above, according to the present invention, control models that can be performed by humans with the know-how of positioning, etc., but whose control models are complex and difficult to fix, can be stored independently in the first storage unit. Addition of method by memorizing. In addition to making changes and corrections easier, by combining results obtained from multiple methods using the logic section o2, various factors can be taken into consideration, resulting in more appropriate results, which are more stable and highly accurate. There is an effect that can be obtained.

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

第1図〜第6図はこの発明の一実施例に係り、第1図は
放電加工機の構成図、第2閃(a、)(b)は自動位置
決め速度と、自動位置決め回数を決定する方法を記述し
た第1の記憶部の内容を示すグラフ図、第8図は自動位
置決め速度と自動位置決め回数を第1の記憶部の内容に
従って処理するフローチャート、第4図は第2の記憶部
に記述されている電極および被加工物に関する情報の内
容を示す図、第5図は自動位置決め完了位置の良否を判
定する方法を記述した第1の記憶部の内容を示すグラフ
図、第6図は自動位置決め完了位置の食合確信度から自
動位置決めの完了、再実行を法定するフローチャート、
第7図は従来の放電加T機の構成図である。 図において、(財)は電柵位置制御部、器は加工電源、
暖は検出処理部、0引よNC,(イ)は(、FTおよび
キーボード、IA旧よ第1の記憶部、LL岱は論理部、
(ハ)は第2の記憶部である。 なお、図中、同一符号は同一または相当部分を示す。
Figures 1 to 6 relate to an embodiment of the present invention, where Figure 1 is a configuration diagram of an electrical discharge machine, and Figures 2 (a,) and (b) determine the automatic positioning speed and number of automatic positionings. A graph diagram showing the contents of the first storage section describing the method, FIG. 8 is a flowchart for processing automatic positioning speed and number of automatic positioning according to the contents of the first storage section, and FIG. 4 is a graph showing the contents of the second storage section. FIG. 5 is a graph showing the contents of the first storage unit that describes the method for determining whether the automatic positioning completion position is good or not; FIG. A flowchart that specifies the completion and re-execution of automatic positioning based on the confidence of alignment of the automatic positioning completion position,
FIG. 7 is a configuration diagram of a conventional electric discharge T machine. In the figure, the foundation is the electric fence position control unit, the device is the processing power supply,
Warm is the detection processing unit, 0 is NC, (A) is (, FT and keyboard, IA is the first storage unit, LL is the logic unit,
(c) is the second storage section. In addition, in the figures, the same reference numerals indicate the same or corresponding parts.

Claims (1)

【特許請求の範囲】[Claims] 電極と被加工物の相対位置が一定値となつたことを検出
する検出器を備え、数値制御装置により制御される放電
加工機において、電極と被加工物間に相対位置が検出で
きる状態で該電極と被加工物を接近させる速度、または
両者の相対位置が一定値となつたことを検出した後、一
旦接近方向とは逆の方向へ移動させ、再度相対位置の一
致を検出するまで移動せしめる回数の少なくとも一方に
関する方法と、検出位置のバラツキから真の検出位置か
否かを判定する方法を複数個記憶した第1の記憶部と電
極及び被加工物に関する状態データと電極と被加工物の
相対位置が一定値となつたことを検出した時点の座標値
を記憶する第2の記憶部と、第2の記憶部に記憶された
内容と第1の記憶部に記憶された方法により得られる複
数個の結果を合成することにより、電極と被加工物を接
近させる速度または回数を決定し、実行し、更に電極と
被加工物の相対位置が一定値となったことを検出した位
置が正確か否かを判定する論理部を具備することを特徴
とする放電加工装置。
In an electrical discharge machine that is equipped with a detector that detects when the relative position of the electrode and the workpiece has reached a constant value and is controlled by a numerical control device, the relative position between the electrode and the workpiece can be detected. After detecting that the speed at which the electrode and workpiece are approaching or the relative position between the two has reached a constant value, the electrode is moved in the opposite direction to the approaching direction, and then moved again until the relative positions match. A first storage unit that stores a plurality of methods relating to at least one of the number of times and a method of determining whether or not it is a true detection position based on variations in the detection position, state data regarding the electrode and the workpiece, and state data on the electrode and the workpiece. A second storage unit that stores the coordinate values at the time when it is detected that the relative position has become a constant value, and the coordinate values are obtained by the contents stored in the second storage unit and the method stored in the first storage unit. By combining multiple results, the speed or number of times the electrode and workpiece should be approached is determined and executed, and the position detected when the relative position of the electrode and workpiece becomes a constant value is accurate. An electrical discharge machining apparatus characterized by comprising a logic section that determines whether or not the
JP63178713A 1988-07-18 1988-07-18 Electric discharge machine Expired - Lifetime JP2536597B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP63178713A JP2536597B2 (en) 1988-07-18 1988-07-18 Electric discharge machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP63178713A JP2536597B2 (en) 1988-07-18 1988-07-18 Electric discharge machine

Publications (2)

Publication Number Publication Date
JPH0230432A true JPH0230432A (en) 1990-01-31
JP2536597B2 JP2536597B2 (en) 1996-09-18

Family

ID=16053263

Family Applications (1)

Application Number Title Priority Date Filing Date
JP63178713A Expired - Lifetime JP2536597B2 (en) 1988-07-18 1988-07-18 Electric discharge machine

Country Status (1)

Country Link
JP (1) JP2536597B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04315522A (en) * 1991-04-16 1992-11-06 Mitsubishi Electric Corp Positioning method and device for electric discharge machining device
JP2007205070A (en) * 2006-02-03 2007-08-16 Asahi Kasei Homes Kk Structure for decreasing raindrop noise

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5973231A (en) * 1982-10-20 1984-04-25 Mitsubishi Electric Corp Electrifying machining control method
JPS6224946A (en) * 1985-07-23 1987-02-02 Canon Inc Modified processing method with processing machine

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5973231A (en) * 1982-10-20 1984-04-25 Mitsubishi Electric Corp Electrifying machining control method
JPS6224946A (en) * 1985-07-23 1987-02-02 Canon Inc Modified processing method with processing machine

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04315522A (en) * 1991-04-16 1992-11-06 Mitsubishi Electric Corp Positioning method and device for electric discharge machining device
JP2007205070A (en) * 2006-02-03 2007-08-16 Asahi Kasei Homes Kk Structure for decreasing raindrop noise

Also Published As

Publication number Publication date
JP2536597B2 (en) 1996-09-18

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