JPH0526625B2 - - Google Patents

Info

Publication number
JPH0526625B2
JPH0526625B2 JP62030233A JP3023387A JPH0526625B2 JP H0526625 B2 JPH0526625 B2 JP H0526625B2 JP 62030233 A JP62030233 A JP 62030233A JP 3023387 A JP3023387 A JP 3023387A JP H0526625 B2 JPH0526625 B2 JP H0526625B2
Authority
JP
Japan
Prior art keywords
indexing
signal
origin
division
index
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.)
Expired - Lifetime
Application number
JP62030233A
Other languages
Japanese (ja)
Other versions
JPS63200945A (en
Inventor
Masahiko Shibata
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.)
Fuji Univance Corp
Original Assignee
Fuji Iron Works Co Ltd
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 Fuji Iron Works Co Ltd filed Critical Fuji Iron Works Co Ltd
Priority to JP62030233A priority Critical patent/JPS63200945A/en
Publication of JPS63200945A publication Critical patent/JPS63200945A/en
Publication of JPH0526625B2 publication Critical patent/JPH0526625B2/ja
Granted legal-status Critical Current

Links

Classifications

    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00Technologies related to metal processing
    • Y02P10/25Process efficiency

Landscapes

  • Machine Tool Positioning Apparatuses (AREA)

Description

【発明の詳細な説明】 (産業上の利用分野) 本発明は、工作機に関し、特に割出板を駆動制
御してワークを所定数等分に分割加工する工作機
の割出制御装置に関するものである。
DETAILED DESCRIPTION OF THE INVENTION (Industrial Application Field) The present invention relates to a machine tool, and more particularly to an indexing control device for a machine tool that drives and controls an indexing plate to divide a workpiece into a predetermined number of equal parts. It is.

(従来の技術) 一般に、フイードバツクしながら割出制御する
ものは、制御装置が高価になるとともに、加工速
度が低下することになる。
(Prior Art) Generally, when indexing is controlled while providing feedback, the control device becomes expensive and the machining speed decreases.

このため、フイードバツク制御を簡略化したオ
ープンループ制御を採用した割出制御装置が多用
されている。
For this reason, index control devices that employ open loop control with simplified feedback control are often used.

ところで、この種の割出制御装置を採用した一
般的な工作機のNC制御装置は、第4図に示すよ
うになつている。
By the way, a typical NC control device for a machine tool that employs this type of indexing control device is shown in FIG.

即ち、マイクロコンピユータ等の演算制御回路
(CPU)を内臓したNC制御部1、各種加工デー
タの設定入力機能ならびに各種の表示機能をなす
操作盤2、割出板を駆動する割出駆動部3および
加工装置を駆動する加工機駆動部4を有する。
Namely, there is an NC control unit 1 which has a built-in arithmetic control circuit (CPU) such as a microcomputer, an operation panel 2 which performs setting input functions for various machining data and various display functions, an indexing drive unit 3 which drives an indexing plate, and It has a processing machine drive section 4 that drives the processing device.

そして、上記NC制御部1から、上記割出駆動
部3および加工機駆動部4に互いに関連した各種
のNC指令を出力し、これにより、割出駆動部3
にて割出板5駆動用のパルスモータM1を駆動制
御し、また、これに関連して加工機駆動部4にて
ワーク6固定用のクランプシリンダM2、ワーク
6送り用のモータM3、主軸ヘツド7駆動用のモ
ータM4等をそれぞれ駆動制御して、ワーク6を
カツタ8により順次設定した数に等分割加工する
ようになつている。
Then, the NC control section 1 outputs various NC commands related to each other to the index drive section 3 and the processing machine drive section 4, and thereby the index drive section 3
The pulse motor M1 for driving the indexing plate 5 is driven and controlled by the processing machine drive unit 4, and the processing machine drive unit 4 controls the clamp cylinder M2 for fixing the workpiece 6, the motor M3 for feeding the workpiece 6, and the spindle head. The workpiece 6 is sequentially divided into equal parts by the cutter 8 by controlling the drive of the seven drive motors M4 and the like.

ところで従来における上記割出駆動部3の制御
は、第5図に示すようになつていた。
By the way, the conventional control of the index drive section 3 was as shown in FIG.

即ち、予め設定された割出板5(ワーク6)の
分割数に応じて、間欠的に信号を発する分割数設
定手段10を設け、この分割数設定手段10から
の信号を入力する毎に割出板5を駆動する割出駆
動部3に割出板5の一分割に相当する正転方向の
割出信号を発する割出指令手段11を設け、この
割出指令手段11からの割出信号回数が所定値に
達した際に原点復帰信号を発する割出回数算出手
段12を設け、上記原点復帰信号を受けた際に、
原点スイツチ15の検知信号を入力するまで上記
割出駆動部3に正転方向の信号を発する原点復帰
指令手段13を設けてなる割出制御装置があつ
た。
That is, a division number setting means 10 is provided which intermittently emits a signal according to the preset number of divisions of the indexing plate 5 (workpiece 6), and each time the signal from the division number setting means 10 is input, the division number is set. The indexing drive unit 3 that drives the indexing plate 5 is provided with an indexing command means 11 that emits an indexing signal in the normal rotation direction corresponding to one division of the indexing plate 5, and the indexing signal from the indexing commanding means 11 is provided. An indexing number calculation means 12 is provided which issues a home return signal when the number of times reaches a predetermined value, and upon receiving the home return signal,
An index control device is provided which includes a home return command means 13 which issues a signal in the normal rotation direction to the index drive section 3 until a detection signal from the home switch 15 is input.

なお、第4図に示した加工機駆動部4は、上記
割出板5が一回駆動される毎に、前述したNC制
御部1からの指令により1加工サイクル作動され
てワーク6を1歯づつ加工するようになつてい
る。
Note that the processing machine drive section 4 shown in FIG. 4 is operated for one processing cycle in response to a command from the NC control section 1 described above each time the index plate 5 is driven once, and the workpiece 6 is moved one tooth. They are being processed step by step.

(発明が解決しようとする問題点) 上記従来のものは、例えばN回の加工工程中
に、割出板5駆動用のパルスモータM1が何等か
の過負荷により割出ミス、即ち割出板5の駆動回
数が所定数以下であつても、割出回数算出手段1
2が正規数となれば、原点復帰指令手段13によ
り、割出板5を原点復帰作動させることになり、
ワーク6の未加工を検知することができない欠点
があつた。
(Problems to be Solved by the Invention) In the above conventional method, for example, during the N-time machining process, the pulse motor M1 for driving the indexing plate 5 may cause an indexing error due to some kind of overload, that is, the indexing plate Even if the number of driving times of 5 is less than a predetermined number, the indexing number calculation means 1
If 2 becomes a normal number, the return-to-origin command means 13 causes the index plate 5 to return to the origin.
There was a drawback that it was not possible to detect whether the workpiece 6 was not processed.

また、原点復帰作動時における割出板5の回転
方向は、加工時における割出板5の回転方向と同
方向であつたため、原点復帰作動時には、割出板
5が原点スイツチ15の作動直後から更に略1回
転することになり、この原点復帰作動に時間を要
する欠点があつた。
Furthermore, since the direction of rotation of the index plate 5 during the return-to-origin operation was the same as the direction of rotation of the index plate 5 during processing, the rotation direction of the index plate 5 during the return-to-origin operation was the same as the rotation direction of the index plate 5 during the return-to-origin operation. Furthermore, approximately one rotation is required, which has the disadvantage that this return-to-origin operation requires time.

本発明は、割出ミスを自動的に検知してワーク
の未加工を防止するとともに、割出板の原点復帰
が迅速に行なえる工作機の割出制御装置を得るこ
とを目的とする。
SUMMARY OF THE INVENTION An object of the present invention is to provide an indexing control device for a machine tool that can automatically detect indexing errors to prevent workpieces from being left unprocessed, and can quickly return an indexing plate to its origin.

(問題点を解決するための手段) 本発明は、上記目的を達成するために、以下の
如く構成したものである。
(Means for Solving the Problems) In order to achieve the above object, the present invention is configured as follows.

即ち、分割数設定手段からの信号を入力する毎
に、割出板を駆動する割出駆動部に一分割に相当
する割出信号を発する割出指令手段と、この割出
指令手段からの割出回数が所定値に達した際に追
加信号を発する割出回数算出手段と、前記追加信
号を受けて割出駆動部に一分割に相当する割出信
号を発する追加割出指令手段と、前記割出板に設
けた原点部材の初期位置の直正転側に設けられて
前記原点部材の通過を検出する原点スイツチと、
この原点スイツチの検知信号を記憶する記憶手段
と、追加割出指令手段と記憶手段との信号を入力
して異常信号または原点復帰信号を発する判定手
段と、この判定手段の原点復帰信号を受けた際
に、原点スイツチの検知信号を入力するまで割出
駆動部に逆転信号を発する原点復帰指令手段とを
設ける構成にしたものである。
That is, each time a signal from the division number setting means is input, the indexing command means issues an indexing signal corresponding to one division to the indexing drive unit that drives the indexing plate, and the indexing command means outputs an indexing signal corresponding to one division. an indexing number calculation means for issuing an additional signal when the number of indexing reaches a predetermined value; an additional indexing command means for receiving the additional signal and issuing an indexing signal corresponding to one division to the indexing drive section; an origin switch that is provided on the normal rotation side of the initial position of the origin member provided on the index plate and detects passage of the origin member;
A storage means for storing the detection signal of the origin switch, a determination means for inputting signals from the additional indexing command means and the storage means to issue an abnormality signal or a return-to-origin signal, and a determination means for receiving the return-to-origin signal from the determination means. In this case, the configuration is such that a home return command means is provided which issues a reverse rotation signal to the indexing drive unit until the detection signal of the home switch is input.

(作用) 本発明は上記構成にしたものであるから、割出
指令手段から割出信号が発せられる毎に割出板が
一分割回転され、上記割出信号の回数が分割数設
定手段に設定された所定値に達すると上記割出板
が一回転することになる。一方、上記割出板が第
1回目に一分割回転された際に、割出板の原点部
材が原点スイツチを通過し、この原点スイツチが
第一回目の検出信号を発し、これを記憶手段が記
憶する。
(Function) Since the present invention has the above configuration, the index plate is rotated by one division each time an index signal is issued from the index command means, and the number of times of the index signal is set in the division number setting means. When the predetermined value is reached, the index plate will rotate once. On the other hand, when the index plate is rotated by one division for the first time, the origin member of the index plate passes the origin switch, and this origin switch emits the first detection signal, which is stored in the storage means. Remember.

上記割出指令手段の割出回数が割出板の一回転
に相当する所定数になると、追加割出指令手段が
割出駆動部に一分割に相当する割出信号を発して
上記割出板が一分割追加回転される。これによ
り、割出板の原点部材が再び原点スイツチを通過
し、この原点スイツチが第二回目の検出信号を発
し、これを上記記憶手段が記憶する。
When the indexing number of the indexing command means reaches a predetermined number corresponding to one rotation of the indexing plate, the additional indexing commanding means issues an indexing signal corresponding to one division to the indexing drive unit to rotate the indexing plate. is rotated by one additional division. As a result, the origin member of the indexing plate passes through the origin switch again, and the origin switch issues a second detection signal, which is stored in the storage means.

そして、判定手段により上記記憶手段、つまり
原点スイツチの作動の有無を確認し、該原点スイ
ツチが正常に作動(二回作動)していれば、原点
復帰指令手段に信号を発して割出板が一分割逆
転、つまりワーク加工時とは逆向きに回転されて
原位置に復帰作動され、該原点スイツチが正常に
作動していない場合には、異常信号を発すること
になる。
Then, the determining means checks whether or not the storage means, that is, the home switch, is activated. If the home switch is activated normally (activated twice), a signal is sent to the home return command means to move the index plate. If the workpiece is rotated in a one-part reverse direction, that is, in the opposite direction to the direction in which the workpiece is being processed and returned to its original position, and the origin switch is not operating normally, an abnormality signal will be generated.

(実施例) 以下、本発明の実施例を図面に基いて説明す
る。
(Example) Hereinafter, an example of the present invention will be described based on the drawings.

図面において、第1図は本発明の実施例を示す
ブロツク図、第2図はそのフローチヤート、第3
図は割出板およびワークの作動状態を示す説明
図、第4図は工作機とNC制御装置との関係を示
す説明図である。
In the drawings, FIG. 1 is a block diagram showing an embodiment of the present invention, FIG. 2 is a flowchart thereof, and FIG.
The figure is an explanatory diagram showing the operating state of the index plate and the workpiece, and FIG. 4 is an explanatory diagram showing the relationship between the machine tool and the NC control device.

第4図は、前述した如く、NC制御部1、操作
盤2、割出駆動部3および加工機駆動部4からな
るNC制御装置を有し、上記NC制御部1から、
割出駆動部3および加工機駆動部4に互いに関連
した各種のNC指令を出力し、これにより、割出
駆動部3にて割出板5駆動用のパルスモータM1
を駆動制御し、また、これに関連して加工機駆動
部4にてワーク6固定用のクランプシリンダM
2、ワーク6送り用のモータM3、主軸ヘツド7
駆動用のモータM4等をそれぞれ駆動制御して、
ワーク6をカツタ8により順次設定した数に等分
割加工するようになつている。
As mentioned above, FIG. 4 has an NC control device consisting of an NC control section 1, an operation panel 2, an index drive section 3, and a processing machine drive section 4, and from the NC control section 1,
Various NC commands related to each other are output to the index drive section 3 and the processing machine drive section 4, and thereby the pulse motor M1 for driving the index plate 5 is output in the index drive section 3.
In connection with this, the processing machine drive unit 4 controls the clamp cylinder M for fixing the workpiece 6.
2. Motor M3 for feeding the workpiece 6, spindle head 7
Drive control of each drive motor M4 etc.
The workpiece 6 is sequentially divided into equal parts by a cutter 8 into a predetermined number of pieces.

第1図は、上記NC制御装置に内臓した割出制
御装置であり、これを第4図とともに説明する。
FIG. 1 shows an indexing control device built into the NC control device, which will be explained in conjunction with FIG. 4.

20は分割数設定手段であり、この分割数設定
手段20は、工作機のクランプシリンダM2によ
つて係止されるワーク6の分割加工数に対応した
分割数(N)を入力し、この分割数(N)に従つ
て所定のタイミングで割出指令手段21および加
工指令手段30に信号を発する。
20 is a division number setting means, and this division number setting means 20 inputs the division number (N) corresponding to the number of divisions of the workpiece 6 held by the clamp cylinder M2 of the machine tool, and sets the division number. A signal is issued to the index command means 21 and the processing command means 30 at a predetermined timing according to the number (N).

上記割出指令手段21は、分割数設定手段20
からの信号を入力する毎に、割出板5の一分割に
相当する正転方向の割出信号、つまりパルス信号
を割出駆動部3をなすパルスモータM1に発し、
割出板5およびこれに連動連結されたワーク6を
1分割分正転方向に回転させる。
The indexing command means 21 includes a division number setting means 20.
Every time a signal is input from , an indexing signal in the forward rotation direction corresponding to one division of the indexing plate 5, that is, a pulse signal is sent to the pulse motor M1 forming the indexing drive section 3,
The index plate 5 and the workpiece 6 interlocked therewith are rotated in the forward rotation direction by one division.

また、上記加工指令手段30は、分割数設定手
段20からの信号を入力する毎に、工作機側のモ
ータM3,M4等を起動・停止制御してカツタ8
によりワーク6を1歯分加工する。
Further, the machining command means 30 controls starting and stopping of the motors M3, M4, etc. on the machine tool side every time a signal from the division number setting means 20 is inputted to the cutter 8.
The workpiece 6 is machined by one tooth.

上記割出指令手段21からの割出信号は、割出
回数算出手段22により随時計算し、その割出回
数が所定値(N)に達すると、追加割出指令手段
23に信号を発し、該手段23により割出駆動部
3に一分割に相当する正転方向の割出信号を発
し、これによりパルスモータM1を介して割出板
5を1分割分正回転させる。
The index signal from the index command means 21 is calculated at any time by the index number calculation means 22, and when the number of indexes reaches a predetermined value (N), a signal is issued to the additional index command means 23, The means 23 issues an indexing signal in the normal rotation direction corresponding to one division to the indexing drive section 3, thereby causing the indexing plate 5 to rotate forward by one division via the pulse motor M1.

一方、割出板5部には、この割出板5が原点を
通過した際に作動される原点スイツチ24を設
け、その作動を原点スイツチ検知手段25によつ
て検知するとともに、これを記憶手段26によつ
て記憶する。
On the other hand, the index plate 5 is provided with an origin switch 24 that is activated when the index plate 5 passes the origin, and the operation is detected by the origin switch detection means 25 and stored in the storage means. 26.

そして、判定手段27により上記追加割出指令
手段23と、記憶手段26との信号を入力して、
両者の信号を判定し、正常の場合には原点復帰指
令手段28に復帰信号を発し、異常の場合には異
常表示手段29に異常信号を発する。
Then, the determination means 27 inputs the signals from the additional index command means 23 and the storage means 26,
Both signals are judged, and if normal, a return signal is issued to the origin return command means 28, and if abnormal, an abnormality signal is issued to the abnormality display means 29.

上記原点復帰指令手段28は、割出駆動部3に
逆転信号を発してこれによりパルスモータM1を
介して割出板5を逆転させ、原点スイツチ検知手
段25が原点スイツチ24の作動を確認した時点
で上記逆転信号を停止する。
The home return command means 28 issues a reverse rotation signal to the index drive unit 3 to reverse the index plate 5 via the pulse motor M1, and at the time when the home switch detection means 25 confirms the operation of the home switch 24. Stops the above reversal signal.

次に、上記制御装置の作用について第1図〜第
3図により説明する。
Next, the operation of the above control device will be explained with reference to FIGS. 1 to 3.

まず、原点復帰サイクルを実行させて割出板5
を第3図に示すように原点位置Aに復帰させ、原
点スイツチ24を割出板5に設けた原点部材をな
す原点ドグ5aの直正回転側にてオフ状態にして
おく。
First, the origin return cycle is executed and the index plate 5 is
is returned to the origin position A as shown in FIG. 3, and the origin switch 24 is turned off on the normal rotation side of the origin dog 5a, which is the origin member provided on the index plate 5.

この状態で、クランプシリンダM2を作動させ
てワーク6を割出板と連動するホルダに係止し、
NC制御装置をスタート(ステツプ50)させる。
In this state, the clamp cylinder M2 is operated to lock the workpiece 6 to the holder that interlocks with the index plate,
Start the NC control device (step 50).

次に、分割数設定手段20に、例えばワーク6
の歯数に相当する分割数(N)を入力するととも
に、この分割数(N)を割出回数算出手段22に
カウンタ設定(ステツプ51)する。
Next, for example, the workpiece 6 is set in the division number setting means 20.
The number of divisions (N) corresponding to the number of teeth is input, and the number of divisions (N) is set as a counter in the indexing number calculation means 22 (step 51).

さすれば、割出指令手段21が、分割数設定手
段20の信号を入力して割出駆動部3(パルスモ
ータM1)に一分割分の正回転方向の割出信号を
発して、割出板5およびワーク6を正転方向に回
転させ、この状態で加工指令手段30が、分割数
設定手段20の信号を入力して加工機駆動部4に
一歯加工分の加工信号を発して工作機側のモータ
M3,M4等が駆動されてカツタ8によりワーク
6の一回目の割出部K1が加工(ステツプ52・
53)される。
Then, the indexing command means 21 inputs the signal from the division number setting means 20 and issues an indexing signal in the forward rotation direction for one division to the indexing drive section 3 (pulse motor M1), thereby starting the indexing process. The plate 5 and the workpiece 6 are rotated in the forward rotation direction, and in this state, the machining command means 30 inputs the signal from the division number setting means 20 and issues a machining signal for machining one tooth to the machine drive section 4 to start machining. The motors M3, M4, etc. on the machine side are driven, and the first index portion K1 of the workpiece 6 is processed by the cutter 8 (step 52).
53) to be done.

このとき、原点ドグ5aが、第3図の位置Aか
ら位置Bに一歯分前進し、原点スイツチ24は1
回目のオン・オフ作動をし、記憶手段26にて記
憶される。
At this time, the origin dog 5a advances by one tooth from position A to position B in FIG.
The on/off operation is performed for the third time and is stored in the storage means 26.

次いで、割出回数算出手段22が分割数(N)
から1の減算を行ない(N−1)を設定値として
カウンタ設定(ステツプ54)する。
Next, the indexing number calculation means 22 calculates the number of divisions (N).
1 is subtracted from , and the counter is set to (N-1) as the set value (step 54).

次いで割出指令手段21が、分割数設定手段2
0の信号を入力して割出駆動部3(パルスモータ
M1)に一分割分の正回転方向の割出信号を発
し、これにより割出板5およびワーク6が正転方
向に回転されて割出を開始(ステツプ55)し、こ
れが一分割に相当する角度回転した段階で上記割
出板5が停止されて割出を完了(ステツプ56)す
る。
Next, the indexing command means 21 controls the division number setting means 2.
0 signal is input and a forward rotational indexing signal for one division is issued to the indexing drive unit 3 (pulse motor M1), whereby the indexing plate 5 and workpiece 6 are rotated in the forward rotational direction and indexed. The indexing plate 5 starts indexing (step 55), and when the indexing plate 5 rotates through an angle corresponding to one division, the indexing plate 5 is stopped and indexing is completed (step 56).

次いで割出回数算出手段22が、カウンタの設
定値が0になつたか否かを判定(ステツプ57)
し、これが0になるまで上記ステツプ52〜ステツ
プ56間を繰り返してワーク6の各割出部(K2・
K3…)を順次加工していく。そして、上記カウ
ンタの設定値が0になると、追加割出指令手段2
3が割出駆動部3に一分割に相当する正転方向の
割出信号を発し、パルスモータM1を介して割出
板5(ワーク6)を正方向に一分割分回転(ステ
ツプ58・59)させる。
Next, the indexing number calculation means 22 determines whether or not the set value of the counter has reached 0 (step 57).
Then, repeat the above steps 52 to 56 until this value becomes 0 to set each index part (K2, K2, etc.) of the workpiece 6.
K3...) will be processed one after another. When the set value of the counter becomes 0, the additional indexing command means 2
3 issues an indexing signal in the forward rotation direction corresponding to one division to the indexing drive unit 3, and rotates the indexing plate 5 (workpiece 6) in the forward direction by one division via the pulse motor M1 (steps 58 and 59). ).

このとき、原点ドグ5aが、第3図の位置Aか
ら位置Bに一歯分前進し、原点スイツチ24は2
回目のオン・オフ作動をし、記憶手段26にて記
憶する。
At this time, the origin dog 5a advances by one tooth from position A to position B in FIG.
The second on/off operation is performed and stored in the storage means 26.

そして、判定手段27が上記記憶手段26の信
号を入力し、原点スイツチ24が2回、オン・オ
フ作動したか否かを判定(ステツプ60)する。
Then, the determination means 27 receives the signal from the storage means 26 and determines whether or not the origin switch 24 has been turned on and off twice (step 60).

上記原点スイツチ24のオン・オフ作動が2回
未満の際には、判定手段27が異常表示手段29
に異常信号を発し、この部で異常表示(ステツプ
61)する。
When the origin switch 24 is turned on and off less than twice, the determination means 27 determines that the abnormality display means 29
An error signal is generated in this section, and an error display (step
61) Do.

即ち、割出駆動部3が正常に駆動していれば、
割出板5(ワーク6)は、追加割出指令手段23
から信号が発せられた際にそのドグ5aが第3図
の位置Bにあり、原点スイツチ24が2回作動し
ていることになる。従つてこれが2回未満という
ことは、正規な加工サイクルがなされなかつたこ
とになる。
That is, if the index drive unit 3 is driven normally,
The indexing plate 5 (work 6) is provided with additional indexing command means 23
When the signal is issued from , the dog 5a is at position B in FIG. 3, and the origin switch 24 has been activated twice. Therefore, if this occurs less than twice, it means that a regular machining cycle was not performed.

また、上記原点スイツチ24が2回オン・オフ
作動していれば、判定手段27が原点復帰指令手
段28に復帰信号を発し、この部で割出駆動部3
に逆転信号、つまり駆動パルスを発してパルスモ
ータM1を介して割出板5を逆転(ステツプ62)
させ、原点スイツチ24がオン作動(ステツプ
63)すると、駆動パルスの周期を変更して上記逆
転速度を減速(ステツプ64)し、原点スイツチ2
4がオフ作動(ステツプ65)した時点、つまり割
出板5のドグ5aが第3図のA位置に到来した時
点でパルスモータM1を停止して原点復帰を完了
(ステツプ66)させ、加工プログラムをストツプ
(ステツプ67)させる。
Further, if the origin switch 24 has been turned on and off twice, the determination means 27 issues a return signal to the origin return command means 28, and this section outputs a return signal to the index drive section 3.
A reversal signal, that is, a driving pulse, is issued to reverse the index plate 5 via the pulse motor M1 (step 62).
and the origin switch 24 is turned on (step
63) Then, the cycle of the drive pulse is changed to reduce the reversal speed (step 64), and the origin switch 2 is
4 is turned off (step 65), that is, when the dog 5a of the index plate 5 reaches position A in FIG. 3, the pulse motor M1 is stopped to complete the return to origin (step 66), and the machining program is is stopped (step 67).

(発明の効果) 以上の説明から明らかな如く、本発明は、割出
指令手段の所定の割出回数を算出した後に、割出
板をさらに一分割分正回転させ、この部で原点ス
イツチの作動回数を判定した後に、割出板を逆転
させて原点復帰させるようにしたので、簡素な制
御装置でもつて、ワークの未加工を検知すること
ができるとともに、割出板の原点復帰作動を迅速
に行なうことができる効果を奏する。
(Effects of the Invention) As is clear from the above description, the present invention rotates the indexing plate in the forward direction by one more division after calculating the predetermined number of indexing by the indexing command means, and in this part, the origin switch is activated. After determining the number of operations, the index plate is reversed to return to the origin, so even with a simple control device, it is possible to detect whether the workpiece has not been processed, and the index plate can be quickly returned to the origin. It produces the effect that can be achieved.

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

第1図は本発明の実施例を示すブロツク図、第
2図はそのフローチヤート、第3図は割出板およ
びワークの作動状態を示す説明図、第4図は工作
機とNC制御装置との関係を示す説明図、第5図
は従来例の割出制御装置を示すブロツク図であ
る。 1……NC制御部、2……操作盤、3……割出
駆動部、4……加工機駆動部、5……割出板、6
……ワーク、7……主軸ヘツド、8……カツタ、
M1……パルスモータ、M2……クランプシリン
ダ、M3,M4……モータ、20……分割数設定
手段、21……割出指令手段、22……割出回数
算出手段、23……追加割出指令手段、24……
原点スイツチ、25……原点スイツチ検知手段、
26……記憶手段、27……判定手段、28……
原点復帰指令手段、29……異常表示手段、30
……加工指令手段。
Fig. 1 is a block diagram showing an embodiment of the present invention, Fig. 2 is a flowchart thereof, Fig. 3 is an explanatory diagram showing the operating state of the index plate and workpiece, and Fig. 4 is a diagram showing the machine tool and NC control device. FIG. 5 is a block diagram showing a conventional indexing control device. 1... NC control section, 2... Operation panel, 3... Index drive section, 4... Processing machine drive section, 5... Index plate, 6
...Workpiece, 7...Spindle head, 8...Cut,
M1... Pulse motor, M2... Clamp cylinder, M3, M4... Motor, 20... Division number setting means, 21... Indexing command means, 22... Indexing number calculation means, 23... Additional indexing Command means, 24...
Origin switch, 25...Origin switch detection means,
26... Storage means, 27... Judgment means, 28...
Origin return command means, 29... Abnormality display means, 30
...Processing command means.

Claims (1)

【特許請求の範囲】[Claims] 1 分割数設定手段からの信号を入力する毎に、
割出板を駆動する割出駆動部に一分割に相当する
割出信号を発する割出指令手段と、この割出指令
手段からの割出回数が所定値に達した際に追加信
号を発する割出回数算出手段と、前記追加信号を
受けて割出駆動部に一分割に相当する割出信号を
発する追加割出指令手段と、前記割出板に設けた
原点部材の初期位置の直正転側に設けられて前記
原点部材の通過を検出する原点スイツチと、この
原点スイツチの検知信号を記憶する記憶手段と、
追加割出指令手段と記憶手段との信号を入力して
異常信号または原点復帰信号を発する判定手段
と、この判定手段の原点復帰信号を受けた際に、
原点スイツチの検知信号を入力するまで割出駆動
部に逆転信号を発する原点復帰指令手段とを設け
たことを特徴とする工作機の割出制御装置。
1 Every time the signal from the division number setting means is input,
An indexing command means that issues an indexing signal corresponding to one division to an indexing drive section that drives an indexing plate, and an indexing means that issues an additional signal when the number of indexing from this indexing command means reaches a predetermined value. an additional indexing command means for receiving the additional signal and issuing an indexing signal corresponding to one division to the indexing drive unit; and a normal rotation side of the initial position of the origin member provided on the indexing plate. an origin switch provided in the origin switch for detecting passage of the origin member, and a storage means for storing a detection signal of the origin switch;
a determining means for inputting signals from the additional indexing command means and the storage means to issue an abnormality signal or a return-to-origin signal, and upon receiving the return-to-origin signal from the determining means;
1. An indexing control device for a machine tool, comprising a home return command means for issuing a reverse rotation signal to an indexing drive unit until a detection signal from a home switch is input.
JP62030233A 1987-02-12 1987-02-12 Indexing controller for machine tool Granted JPS63200945A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62030233A JPS63200945A (en) 1987-02-12 1987-02-12 Indexing controller for machine tool

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62030233A JPS63200945A (en) 1987-02-12 1987-02-12 Indexing controller for machine tool

Publications (2)

Publication Number Publication Date
JPS63200945A JPS63200945A (en) 1988-08-19
JPH0526625B2 true JPH0526625B2 (en) 1993-04-16

Family

ID=12297995

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62030233A Granted JPS63200945A (en) 1987-02-12 1987-02-12 Indexing controller for machine tool

Country Status (1)

Country Link
JP (1) JPS63200945A (en)

Also Published As

Publication number Publication date
JPS63200945A (en) 1988-08-19

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