JPS5977519A - Original point resetting method - Google Patents
Original point resetting methodInfo
- Publication number
- JPS5977519A JPS5977519A JP18874082A JP18874082A JPS5977519A JP S5977519 A JPS5977519 A JP S5977519A JP 18874082 A JP18874082 A JP 18874082A JP 18874082 A JP18874082 A JP 18874082A JP S5977519 A JPS5977519 A JP S5977519A
- Authority
- JP
- Japan
- Prior art keywords
- dog
- origin
- limit switch
- original point
- return
- 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
Links
Classifications
-
- 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
- G05B19/18—Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form
- G05B19/19—Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form characterised by positioning or contouring control systems, e.g. to control position from one programmed point to another or to control movement along a programmed continuous path
- G05B19/21—Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form characterised by positioning or contouring control systems, e.g. to control position from one programmed point to another or to control movement along a programmed continuous path using an incremental digital measuring device
- G05B19/23—Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form characterised by positioning or contouring control systems, e.g. to control position from one programmed point to another or to control movement along a programmed continuous path using an incremental digital measuring device for point-to-point control
-
- 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
- G05B19/18—Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form
- G05B19/401—Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form characterised by control arrangements for measuring, e.g. calibration and initialisation, measuring workpiece for machining purposes
- G05B19/4015—Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form characterised by control arrangements for measuring, e.g. calibration and initialisation, measuring workpiece for machining purposes going to a reference at the beginning of machine cycle, e.g. for calibration
-
- 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
- G05B2219/00—Program-control systems
- G05B2219/30—Nc systems
- G05B2219/50—Machine tool, machine tool null till machine tool work handling
- G05B2219/50024—Go to reference, switches and dog to decelerate and to detect origin
-
- 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
- G05B2219/00—Program-control systems
- G05B2219/30—Nc systems
- G05B2219/50—Machine tool, machine tool null till machine tool work handling
- G05B2219/50031—Zero setting, go to reference with gauge
Landscapes
- Engineering & Computer Science (AREA)
- Human Computer Interaction (AREA)
- Manufacturing & Machinery (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Automation & Control Theory (AREA)
- Control Of Position Or Direction (AREA)
- Numerical Control (AREA)
Abstract
Description
【発明の詳細な説明】
本発明は、原点復帰フコ法に係り、特に可動部を予め定
められた原点復帰方向と逆方向に移動させた後、原点復
帰方向に移動させてｊｉｊ点復帰させる数値制御工作機
の原点復帰フコ法に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to the origin return fuco method, and in particular, to a numerical value for returning to the jij point by moving a movable part in a direction opposite to a predetermined origin return direction, and then moving it in the origin return direction. Concerning the return-to-origin fuco method for control machine tools.
可動部を予め定められた原点復帰方向と逆方向に移動さ
せた後、原点方向に移動させ、誠速帖号の発生により原
点復帰速度を減少させ、原点近接信号が発生した後の最
初のモータ１回転量号により可動ｆ４Ｊ（を停止させる
原点復帰方法がある。第１図はか＼る原点復帰方法説明
図であり、機械可動部（テーブル）ＴＢにはリミットス
イッチＬＳが１機械固定部ＭＣの原点近傍には原点復帰
用のドグＤＧがそれぞれ設けられている。さて、リミッ
ト信号・ンチＬＳがドグＤＧの左側である作業領域ＡＪ
Ｉ［に存在するときに原点復帰モードにすると、機械可
動＊ｒ＋ Ｔ Ｂは原点に向がって早送りｖＲで移動す
る。そして、時刻ｔ１において原点近傍に到達してリミ
ットスイッチＬＳが原点復帰用ドグＤＧに接触すると第
１図に示す如くリミット信号ＬＳＳが１゛から°“ｏ″
となる。このリミット信号ＬＳＳの立下り（減速信号）
により原点復帰速度は減速する。そして、時刻Ｌ２にお
いてリミットスイッチＬＳはドグＤＧから８象れ、リミ
ット信号は“０゛からｌ″になる。尚、この時移動速度
はＶＬとなっ−ている。リミタｌ−４，Ｊ号ＬＳＳが°
“ｏ″から′ビになると（立上ると）以後速度ｖＬで機
械可動部ＴＢは原点に向がって移動し、リミット信号Ｌ
ＳＳの立」−り（原点近接信号発生）後のが初のモータ
１回転量号ＯＲ３の発生により停止する。尚、第１図中
ＯＴＡはオーバトラベル領域、第１エリアＡＩはオーバ
トラベル側領域、第２エリアＡｎ は原点近接領域、第
３エリアＡｆｆｉは作業領域である。After the movable part is moved in the opposite direction to the predetermined home return direction, it is moved in the home direction, and the home return speed is decreased by the generation of the Seishokucho signal, and the first motor after the home proximity signal is generated. There is a home return method in which the movable f4J is stopped depending on the number of revolutions. Fig. 1 is an explanatory diagram of the home return method, and there is a limit switch LS on the machine movable part (table) TB, and one machine fixed part MC. A dog DG for returning to the origin is provided near the origin.Now, in the work area AJ where the limit signal/inch LS is on the left side of the dog DG.
If the return-to-origin mode is set while the machine is in I[, the mechanical movable *r+ T B moves toward the origin at rapid traverse vR. Then, at time t1, when the limit switch LS reaches near the home position and contacts the home return dog DG, the limit signal LSS changes from 1゛ to °"o" as shown in FIG.
becomes. Fall of this limit signal LSS (deceleration signal)
The home return speed is reduced by this. Then, at time L2, the limit switch LS moves eight times from the dog DG, and the limit signal changes from "0" to "1". Note that the moving speed at this time is VL. Limiter l-4, J LSS °
When it changes from "o" to 'bi' (when it rises), the mechanical movable part TB moves toward the origin at the speed vL, and the limit signal L
After the SS rises (generating the origin proximity signal), the motor stops when the first motor rotation amount number OR3 is generated. In FIG. 1, OTA is an overtravel area, a first area AI is an overtravel side area, a second area An is an area near the origin, and a third area Affi is a work area.
さて、原点復帰に際しては、上記原点復帰方向・＼のテ
ーブル移動に先立って該テーブルを原点イυ帰方向と逆
方向に移動させ、リミットスイッチＬＳを第３エリア（
作業領域）Ａ■に位置決めし。Now, when returning to the origin, before moving the table in the origin return direction ＼, move the table in the opposite direction to the origin return direction, and move the limit switch LS to the third area (
Work area) Position at A■.
しかる後」二記第１図に関連した方法で原点復帰を行な
う必要がある。このため、従来の原点復帰方法において
６士、ｊ原点復帰力向と逆方向（プラス方向）に規定距
離テーブルを移動させ、しかＺ、後上記第１図に関連し
たブ〕法で原点復帰させていた。After that, it is necessary to return to the origin using the method shown in Section 2, Figure 1. For this reason, in the conventional home return method, the table is moved by a specified distance in the opposite direction (positive direction) to the direction of the home return force, and then the home position is returned using the was.
尚、上記規定距離はりミントスイッチＬＳか第１、第２
、第３エリアＡＩ 、 ＡＩｌ、 ＡＩＩＩのいずれの
領域のとこにいても、該規定距囚移動すればリミットス
イッチＬＳが第３エリアＡｍに位置１ノとめされる距離
である。しかし、プラス方向へ規定距離だけ移動させて
後原点方向に移動させる方法では、移動のためのパルス
分配に対してサーボの応答遅れが存在するため、上記規
定距離のパルス分配完了後に原点方向（マイナス方向）
へのパルス分配が開始されても、テーブルは遅れ分だけ
プラス方向へ移動する。この遅れ分によるプラス方向へ
の移動の間にリミットスイッチＬＳがドグより離れ、リ
ミット信号ＬＳＳが０°°からパ１′′となると、制御
装置は原点近接信号が発生したものとして、以後最初に
１回転量号が発生した位置を原点として停止トシ、該動
作する。In addition, if the specified distance above is the mint switch LS or the first and second
, the third area AI, AIl, and AIII, if the prisoner moves the specified distance, the limit switch LS will be stopped at the third area Am by one point. However, in the method of moving a specified distance in the positive direction and then moving it back toward the origin, there is a delay in the response of the servo to the pulse distribution for the movement, so after the pulse distribution for the specified distance is completed, the servo moves toward the origin (minus direction)
Even if pulse distribution to is started, the table moves in the positive direction by the amount of delay. During the movement in the positive direction due to this delay, when the limit switch LS separates from the dog and the limit signal LSS changes from 0°° to 1'', the control device assumes that the home position proximity signal has been generated, and from then on The machine stops and operates with the position where one rotation amount occurs as the origin.
以上から、本発明は確実に原点復帰させることができる
と共に、原点復帰時間を短縮することができる原点復帰
方法を提供することを目的とする。In light of the above, an object of the present invention is to provide a method for returning to the origin that can reliably return to the origin and shorten the time required for returning to the origin.
以下、本発明の実施例を図面に従って詳細に説明する。Embodiments of the present invention will be described in detail below with reference to the drawings.
第２Ｍは本発明の実施例ブロック図、第３図は処理の流
れ図である。2M is a block diagram of an embodiment of the present invention, and FIG. 3 is a flowchart of processing.
原点復帰指令ＺＲＮが“０″のときは、制御装置ＣＮＵ
から指令パルスＣＰが送出される毎に可逆カウンタＲＣ
ＮＩは、これを計数し、該計数内容に比例した電圧がデ
ィジタル−アナログ変換器ＤＡＣから発生する。When the home return command ZRN is “0”, the control device CNU
Every time a command pulse CP is sent from
The NI counts this and a voltage proportional to the count is generated from the digital-to-analog converter DAC.
この電圧はパワーアンプＡＭＰにて増幅され、サーボモ
ータＭを回転し、該サーボモータの回転軸に結合された
ボールネジＢＳを介してテーブルＴＢを駆動する。これ
と同時にサーボモータＭの回転はロークリエンコーダＲ
Ｅを回転せしめる。This voltage is amplified by a power amplifier AMP, rotates a servo motor M, and drives a table TB via a ball screw BS coupled to the rotating shaft of the servo motor. At the same time, the rotation of the servo motor M is controlled by the row encoder R.
Rotate E.
ロータリエンコーダＲＥは、所定准回転する初にパルス
ＦＢＰを発生し、又１回転毎に−１【ｊ１１信号ＰＣを
発生する如く描成されている。かくして、サーボモータ
Ｍの回転量はロータリエンコーダＲＥにより検出され、
その回転量はフィードバックパルスＦＢＰとし可逆カウ
ンタＲＣＮＩの誠ｎ、’ ０ｉｉｉ子に入力され、該カ
ウンタの内容を減算する。指令パルスＣＰの到来が停止
し、指４パルス数に等しい数のフィードパンクパルスＦ
ＢＰが発生するとリバーシブルカウンタの内容は零とな
り、サーボモータＭはその回転を停止し、位置決めを完
了する。The rotary encoder RE is depicted to generate a pulse FBP at the beginning of a predetermined rotation, and to generate a -1[j11 signal PC every rotation. Thus, the rotation amount of the servo motor M is detected by the rotary encoder RE,
The amount of rotation is input as a feedback pulse FBP to the input terminal of a reversible counter RCNI, and the contents of the counter are subtracted. The arrival of the command pulse CP is stopped, and the number of feed puncture pulses F equal to the number of finger 4 pulses is
When BP occurs, the contents of the reversible counter become zero, the servo motor M stops its rotation, and positioning is completed.
図示しない操作盤において原点復帰モードを指令すると
制御装置ＣＮＵは、原点復帰制御プログラムの制御下に
おかれ、第３図に示す原点復帰処理を行なう。すなわち
、まず
（イ）リミット信号ＬＳＳを読み取り、（ロ）リミット
信号ＬＳＳか１゛′であるか“０″であるかを判別する
。 ＬＳＳ−”Ｏ’“であればリミットスイッチＬＳが
ドグと接触しているものと判定し、又ＬＳＳ−“１′”
であれはりミントスイッチＬＳが第１、第３エリアＡＩ
、 Ａ■のいずれかに存在するものとして以下の
処理を行なう。When the origin return mode is commanded on an operation panel (not shown), the control device CNU is placed under the control of the origin return control program and performs the origin return process shown in FIG. 3. That is, first (a) the limit signal LSS is read, and (b) it is determined whether the limit signal LSS is 1'' or "0". If LSS-"O'", it is determined that the limit switch LS is in contact with the dog, and LSS-"1'"
But Mint Switch LS is the 1st and 3rd area AI
, A■, and perform the following processing.
（ハ）原点近接信号発生位置とオーバトラベル間の距離
をり。とするとき
ＬＯ十〇 （α＞０）
に相当する数のプラス方向の指令パルスＣＰを発生し、
テーブルをプラス方向へ移動させる。(c) Distance between origin proximity signal generation position and overtravel. When LO10 (α>0), generate a number of positive direction command pulses CP,
Move the table in the positive direction.
（ニ）テーブル停止後、リミット信号ＬＳＳが“１″か
０゛かを判別し、 ＬＳＳ＝”１”であれぼリミットス
イッチＬＳは初めから作業価ｂｑＡＩ［ｌにあったもの
と判断し、ＬＳＳ−“０″てあればリミタ（・スイッチ
ＬＳは当初オー／へトラベル側領域ＡＩ に存在したと
判断し、次の処理を行なう。(d) After the table is stopped, determine whether the limit signal LSS is "1" or 0. If LSS="1", the limit switch LS is judged to have been at the work price bqAI[l from the beginning, and the LSS - If it is "0", it is determined that the limiter switch LS was initially present in the O/HE travel side area AI, and the following processing is performed.
（ホ）即ち、当初リミツトスイ・ンチＬＳかｉ′５２エ
リアＡＩＩに存在しているとき、或いは（ＬＯ＋（Ｘ）
移動後にリミットスイッチＬＳか第２工１ノア八丘に存
在するときには、原点復帰方向と逆方向にＬ Ｓ Ｓ
＝ ” ］ ”となる迄制御装置ＣＮ Ｕは指令パルス
ＣＰを発生する。(E) That is, when the limit switch LS initially exists in the i'52 area AII, or (LO+(X)
When the limit switch LS is located at Noa Yaoka in No. 2 work 1 after the movement, L S S in the direction opposite to the home return direction.
The control device CNU generates the command pulse CP until =" ] ".
（へ）リミットスイッチＬＳが作業領坊番こ到達すれば
（ＬＳＳ＝”ビ）、テーブルを一旦停止し、原点復帰命
令ＺＲＮ（＝”１°°）を出力し、且つ原点復帰方向の
指令パルスＣＰを発生して第１図に従った原点復帰処理
を行なう。(v) When the limit switch LS reaches the working area (LSS="B"), the table is temporarily stopped, a home return command ZRN (="1°°) is output, and a command pulse in the home return direction is output. CP is generated and the origin return process according to FIG. 1 is performed.
さて、フリップフロップＦＦＩ、ＦＦ２は当初リセット
されており、又、アンドグ−１−Ａ Ｎ ｌは開いてい
る。しかして制御装置ＣＮＵより与えられる原点復帰パ
ルスＣＰは、該ゲートを介してリバーシブルカウンタＲ
ＣＮＩに供給され、前述と同様な動作に従ってテーブル
ＴＢは原点方向（矢印方向）に移動する。テーブルか原
点近傍（こ到達し、テーブルに備えつけたりミ・ントス
イ・ソチＬＳがドグＤＧに接触するとリミ’７１−信号
ＬＳＳが１″から“０°”になり、アンドゲートＡＮ２
を聞きＦＦ＋ をセットする。これと同時にリミ・ン
ト信号ＬＳＳは制御装置ＣＮＵに供給され、原点復帰パ
ルスの速度を減速する。かくして、テーブルは低速で原
点に向って移動し、リミ・ントスインチＬＳが復１１コ
して最初にロータリエンコーダＲＥから発生する１口中
１ミ信号により、アントゲートが開きＦＦ２ をセッ
トすると共に、す／久ーシンルカウンタＲＣＮ＋ の内
容をクリアして原点復帰完了とする。Now, flip-flops FFI and FF2 are initially reset, and ANDG-1-AN1 is open. The home return pulse CP given by the control device CNU is then passed through the gate to the reversible counter R.
The table TB is supplied to the CNI and moves in the direction of the origin (in the direction of the arrow) according to the same operation as described above. When the table or near the origin (this point is reached and the table is equipped or the mi-ntsui-sochi LS contacts the dog DG, the limit '71-signal LSS changes from 1" to "0°", and the AND gate AN2
Listen and set FF+. At the same time, the limit signal LSS is supplied to the control unit CNU to reduce the speed of the home return pulse. In this way, the table moves toward the origin at low speed, and the limit inch LS repeats 11 times, and the ant gate opens in response to the 1 out of 1 signal generated from the rotary encoder RE, setting FF2 and starting/ The contents of the synchronization counter RCN+ are cleared and the return to origin is completed.
以」二、本発明によれば原点復帰指令時１こおけるリミ
ットスイッチとドグの相対位置関係番こ応じて、原点復
帰方向と逆方向へのテーブル移動を制御し、特に原点近
接領域とオー７＜ ｌ−ラベル側領域のいずれかにリミ
ットスイ・ソチがある時には確実にリミット（Ｍ号が０
“から゛１パになったことを確認し、換言すれはリミ’
／ ｌ−スイ・・ノチＬＳが確実に作業領域に位置決め
されたことを確認して原点復帰方向への移動を１１なう
ようにして１，するから、原点復帰を確実に行なうこと
がてきた。又、原点復帰力向と逆方向の移動距離をでき
るたけ小どなるようにしているから、原点復帰時間を１
−１縮することができた。2. According to the present invention, table movement in the direction opposite to the origin return direction is controlled according to the relative positional relationship number between the limit switch and the dog at one point when the origin return command is issued. < l - When there is a limit switch or sochi in any of the label side areas, the limit (M number is 0
“Confirm that it has become 1 pa, in other words, limit it.”
/ l-Sui...Make sure that the Nochi LS is securely positioned in the work area and then move it in the direction of returning to the home position 1.1, so that the return to the home position can be performed reliably. . Also, since the moving distance in the direction opposite to the home return force direction is made as small as possible, the home return time is reduced to 1.
I was able to reduce the size by -1.
第１図は、従来の原点復帰方法説明図、第２図は本発明
の実施例ブロフク図、第３図は処理の流れ１／である。
ＬＳ ・ ・ リ ミ ・ン １・
ス イ ッ チ 、 ＤＧ 拳 ＠
１・ グＴＢ・・テーブル、 ＭＣ・・機械固定部Ｃ
ＮＵ−・制御装置
出願人 ファナック株式会社
代理人 弁理士 辻 １！工：（外２名）
竿７２
θＲ眞−頂−−−−−−−几一一」−
第３図FIG. 1 is an explanatory diagram of a conventional origin return method, FIG. 2 is a block diagram of an embodiment of the present invention, and FIG. 3 is a process flow 1/. LS・・Remi・n 1・
Switch, DG fist @
1. TB...Table, MC...Machine fixing part C
NU-・Control device applicant Fanuc Co., Ltd. agent Patent attorney Tsuji 1! Engineering: (2 other people) Rod 72 θR Shin-Top --- Kazuichi Rin" - Figure 3
Claims (2)
移動させた後、原点方向に移動させて、原点復帰させる
原点復帰方法において、可動部と機械固定部のうちいず
れが一方にドグを、他方にリミントスイッチをそれぞれ
設け、リミットスイッチがオンしているかオフしている
かをチェックし、オンかオフかに基いてリミットスイッ
チがドグと接触しているのか或いはドグの両側にあるの
かを判別するステップ、リミットスイッチがドグに接触
していない場合、所定距離原点復帰力向と逆方向に可動
部を移動させるステップ、前記移動によりリミントスイ
ッチがドグに接触したかとうかをチェックしてリミット
スイッチがオーバトラベル側にいたのか、作業領域側に
いたのかを判別するステップ、リミントスイッチがオー
バトラベル側にいたとき、或いはドグ上にいたとき可動
部をリミットスイッチがドグより副れる迄移動させるス
テップ、リミ・ントスイッチか作業領域側にいたとき或
いはリミットスイッチかドグより離れたとき可動部を原
点方向に移動させて原点復帰させるステップを有するこ
とを特徴とする原点イシ帰方法。(1) In the origin return method in which the movable part is moved in the opposite direction to the predetermined origin return direction and then moved in the origin direction and returned to the origin, whichever of the movable part and the mechanical fixed part is dogged on one side. and a limit switch on the other side, check whether the limit switch is on or off, and depending on whether it is on or off, check whether the limit switch is in contact with the dog or on both sides of the dog. If the limit switch is not in contact with the dog, a step of moving the movable part a predetermined distance in the direction opposite to the direction of the home return force; checking whether the limit switch has come into contact with the dog due to the movement. A step to determine whether the limit switch was on the overtravel side or on the work area side.When the limit switch was on the overtravel side or on the dog, move the movable part until the limit switch was below the dog. and a step of moving a movable part in the direction of the origin and returning it to the origin when the limit switch is on the work area side or when the limit switch is away from the dog.
ントスイッチがドグよりＮ１れる位置からオーバトラベ
ル領域迄の距離をＬｏとするとき、Ｌｏ＋ｃＡ（Ｃｊ、
〉０） であることを特徴とする特許請求の範囲第１項記載の原
点復帰方法。(2) The predetermined distance is defined as Lo+cA(Cj,
0) The method for returning to the origin according to claim 1.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18874082A JPS5977519A (en) | 1982-10-27 | 1982-10-27 | Original point resetting method |
| PCT/JP1983/000385 WO1984001839A1 (en) | 1982-10-27 | 1983-10-27 | Method of returning to origin |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18874082A JPS5977519A (en) | 1982-10-27 | 1982-10-27 | Original point resetting method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5977519A true JPS5977519A (en) | 1984-05-04 |
Family
ID=16228938
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18874082A Pending JPS5977519A (en) | 1982-10-27 | 1982-10-27 | Original point resetting method |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JPS5977519A (en) |
| WO (1) | WO1984001839A1 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63228308A (en) * | 1987-03-18 | 1988-09-22 | Amada Co Ltd | Origin returning method for moving object |
| JPH07195437A (en) * | 1994-12-12 | 1995-08-01 | Fanuc Ltd | Device for returning to original point of injection molding machine driven by servomotor |
| JPH08238658A (en) * | 1996-03-05 | 1996-09-17 | Fanuc Ltd | Molding machine driven by electrically driven servo motor |
| KR100440154B1 (en) * | 2002-05-31 | 2004-07-12 | 현대자동차주식회사 | Method of controlling over-travel for machine tools |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4961168A (en) * | 1987-02-24 | 1990-10-02 | Texas Instruments Incorporated | Bipolar-CMOS static random access memory device with bit line bias control |
| US4862421A (en) * | 1988-02-16 | 1989-08-29 | Texas Instruments Incorporated | Sensing and decoding scheme for a BiCMOS read/write memory |
| EP0742499B1 (en) * | 1995-05-11 | 2001-09-05 | Siemens Aktiengesellschaft | Reliable processing of safety-oriented process signals |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5642807A (en) * | 1979-09-17 | 1981-04-21 | Komatsu Ltd | Original point resetting method of nc machine tool |
| JPS5776607A (en) * | 1980-10-30 | 1982-05-13 | Fanuc Ltd | Numeric control system |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS499549B1 (en) * | 1969-08-01 | 1974-03-05 |
-
1982
- 1982-10-27 JP JP18874082A patent/JPS5977519A/en active Pending
-
1983
- 1983-10-27 WO PCT/JP1983/000385 patent/WO1984001839A1/en unknown
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5642807A (en) * | 1979-09-17 | 1981-04-21 | Komatsu Ltd | Original point resetting method of nc machine tool |
| JPS5776607A (en) * | 1980-10-30 | 1982-05-13 | Fanuc Ltd | Numeric control system |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63228308A (en) * | 1987-03-18 | 1988-09-22 | Amada Co Ltd | Origin returning method for moving object |
| JPH07195437A (en) * | 1994-12-12 | 1995-08-01 | Fanuc Ltd | Device for returning to original point of injection molding machine driven by servomotor |
| JPH08238658A (en) * | 1996-03-05 | 1996-09-17 | Fanuc Ltd | Molding machine driven by electrically driven servo motor |
| KR100440154B1 (en) * | 2002-05-31 | 2004-07-12 | 현대자동차주식회사 | Method of controlling over-travel for machine tools |
Also Published As
| Publication number | Publication date |
|---|---|
| WO1984001839A1 (en) | 1984-05-10 |
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