JPH0487753A - Control method for nc machine tool - Google Patents
Control method for nc machine toolInfo
- Publication number
- JPH0487753A JPH0487753A JP2201508A JP20150890A JPH0487753A JP H0487753 A JPH0487753 A JP H0487753A JP 2201508 A JP2201508 A JP 2201508A JP 20150890 A JP20150890 A JP 20150890A JP H0487753 A JPH0487753 A JP H0487753A
- Authority
- JP
- Japan
- Prior art keywords
- workpiece
- machining
- machine tool
- mounting accuracy
- processing
- 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
Links
- 238000000034 method Methods 0.000 title claims description 21
- 238000003754 machining Methods 0.000 claims abstract description 25
- 238000005259 measurement Methods 0.000 claims description 25
- 238000009434 installation Methods 0.000 claims description 10
- 230000002950 deficient Effects 0.000 description 8
- 239000002173 cutting fluid Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Landscapes
- Machine Tool Sensing Apparatuses (AREA)
- Numerical Control (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、NC工作機械において加工の準備段階の一つ
として行われるワークテーブル上のイケールに取付けら
れたワークの取付は精度の確認作業を含むワークの処理
手順の制御方法の改善に関する。[Detailed Description of the Invention] [Industrial Application Field] The present invention is a method for checking the accuracy of a workpiece attached to a tombstone on a work table, which is performed as one of the preparatory steps for machining in an NC machine tool. This invention relates to improvements in control methods for processing procedures for workpieces.
通常、NC工作機械でワークの加工を行う前には、パレ
ット上にセットされたイケールの各面にワークを所定の
精度で位置決め・固定する段取り作業が行われる。そし
て、加工の直前に、パレットがワークテーブル上に載せ
られた際に、工作機械の主軸に測定治具を取付け、ワー
クの取付は精度のチエツクを行い(これを“通り”の測
定と称する)、許容範囲以上に位置がずれている場合に
は、加工を中止したり、取付けを修正したりしている。Normally, before machining a workpiece with an NC machine tool, setup work is performed to position and fix the workpiece with a predetermined accuracy on each side of a tombstone set on a pallet. Immediately before machining, when the pallet is placed on the work table, a measuring jig is attached to the main axis of the machine tool, and the accuracy of workpiece installation is checked (this is called "pass" measurement). If the position is off beyond the allowable range, processing is stopped or the installation is corrected.
従来からこの“通り”の測定は、イケールの各面のワー
クについて、そのワークが加工される直前に行われてい
る。従って、複数の取付は面を有するイケールの場合、
未加工のワークの精度計測箇所に、先に行われた加工に
よって他ワークから排出された切削屑や切削液が付着し
て、通りの測定データに誤りが生じる恐れがあった。勿
論、測定の前にワークのクリーニングを行うがその作業
は中々面倒であると共に、完全な清掃は期待できず、そ
の結果、ワークが正しく取付けられているにもかかわら
ず、付着した異物のために通り不良と判定されるものも
多く、工作機械の稼働率を低下させる原因の一つにもな
っている。Traditionally, this "street" measurement has been performed on the workpiece on each side of the tombstone immediately before the workpiece is machined. Therefore, multiple installations are required for tombstones with surfaces.
There was a risk that cutting waste or cutting fluid discharged from other workpieces due to previous machining would adhere to the accuracy measurement location of the unprocessed workpiece, causing errors in the actual measurement data. Of course, the workpiece is cleaned before measurement, but this work is quite tedious and complete cleaning cannot be expected. Many of them are judged to be defective, and are one of the causes of lower operating rates of machine tools.
本発明は、このような従来技術における問題点を解決し
、通りの測定を正確に行い、且つその結果と周囲の状況
に応じてワークを如何に処理するかを適確に判断し、以
て機械の稼働率を向上させる方法を提供することを目的
とする。The present invention solves these problems in the prior art, accurately measures the workpiece, and accurately determines how to process the workpiece based on the results and surrounding conditions. The purpose is to provide a method to improve machine availability.
この目的は、ワーク取付は精度計測機能を有するNC工
作機械において、該NC工作機械のワークテーブル上の
イケールに取付けられた複数のワークの取付は精度を、
第1加工順位のワークの加工開始前に一括して計測し、
前記各ワークの加工開始前に前記計測結果と所定の許容
限界とを比較し、該許容限界内にある場合にはそのまま
加工を実行し、前記許容限界を外れている場合には所定
の対策処理を行うように制御することを特徴とするNC
工作機械の制御方法によって達成される。The purpose of this is to increase the precision of mounting multiple workpieces attached to tombstones on the work table of the NC machine tool in an NC machine tool that has a precision measurement function for workpiece mounting.
The workpieces in the first processing order are measured all at once before the start of processing.
Before starting machining of each workpiece, the measurement results are compared with a predetermined tolerance limit, and if it is within the tolerance limit, the machining is performed as is, and if it is outside the tolerance limit, a predetermined countermeasure is taken. NC characterized in that it is controlled to perform
This is achieved by the machine tool control method.
そして、前記所定の対策処理は、有人時間帯においては
警報を発してワークの取付は不良をオペレータに通報し
、無人時間帯においては当該ワークの加工をスキップす
るようにすることが望ましい。Preferably, the predetermined countermeasure process is to issue an alarm to notify the operator that the workpiece is improperly mounted during manned hours, and to skip machining of the workpiece during unmanned hours.
従来の“通り”測定は各ワーク毎に加工開始の直前に行
われていたが、本発明においてはワークテーブル上のす
べてのワークが未加工状態で切り屑や切削液で汚染され
ていない間に通りの測定が行゛われ、そのデータを適宜
なメモリに記憶しておく。そして、各ワークが加工され
る直前に、当該ワークについての測定データが読み出さ
れて所定の許容限界と比較され、ワーク取付けの良否が
決定される。Conventionally, "on-the-spot" measurements were taken for each workpiece just before the start of machining, but in the present invention, measurements are taken while all workpieces on the worktable are unprocessed and uncontaminated by chips or cutting fluid. Regular measurements are taken and the data are stored in a suitable memory. Immediately before each workpiece is machined, measurement data for the workpiece is read out and compared with predetermined tolerance limits to determine whether the workpiece is properly attached.
ワーク取付けが良好と判断された場合には、直ちにワー
クの加工が行われる。しかし、不良と判断された場合に
は、その時の周囲の状況に応じて二つの選択肢のいずれ
かが選ばれる。If it is determined that the workpiece is properly attached, the workpiece is processed immediately. However, if it is determined to be defective, one of two options is selected depending on the surrounding situation at that time.
即ち、オペレータが存在している有人時間帯においては
、警報を発してワークの取付けが不良であることを担当
のオペレータに通報する。これによってオペレータはワ
ークの取付は状態を再度チエツクし、簡単に修正が可能
な場合には取付は位蓋の修正の後に、加工を実行させる
。しかし、簡単には修正が不可能と判断した場合には、
加工を中止して次のワークの処理にスキップさせる。That is, during manned hours when an operator is present, an alarm is issued to notify the operator in charge that the workpiece has been improperly mounted. This allows the operator to check the mounting status of the workpiece again, and if it can be easily corrected, performs processing after correcting the mounting position and cover. However, if it is determined that it cannot be easily corrected,
Stops machining and skips to processing the next workpiece.
一方、深夜等のオペレータが不在の無人時間帯において
は、警報を発することなく直ちに次のワークの処理を行
うように手順をスキップさせる。On the other hand, during unmanned hours such as late at night when the operator is absent, the procedure is skipped so that the next work is processed immediately without issuing an alarm.
本発明によれば、各ワークについて正確な通りの測定が
可能となって異物の付着による測定の誤りが解消するの
みならず、オペレータの判断を有効に介入させることに
よって、工作機械の稼働率を向上することが可能となる
。According to the present invention, it is not only possible to accurately measure each workpiece and eliminate measurement errors caused by adhesion of foreign matter, but also to improve the operating rate of the machine tool by effectively involving the operator's judgment. It becomes possible to improve.
以下、図面に示す好適実施例に基づいて、本発明を更に
詳細に説明する。Hereinafter, the present invention will be explained in more detail based on preferred embodiments shown in the drawings.
第1図は、本発明方法を適用されるNC工作機械の構成
の一例を示すブロック図であり、工作機械本体1と、N
C装置2と、これら両者の間に介在す゛るメモリを具え
た機械制御装置3とからなる。FIG. 1 is a block diagram showing an example of the configuration of an NC machine tool to which the method of the present invention is applied.
It consists of a C device 2 and a machine control device 3 provided with a memory interposed between the two.
第2図は、加工のためにこのNC工作機械の前面のワー
クテーブル7上のパレット4にワークをセットした状態
を示す。この例では、4個のワークnl + n2
+ n= l n4がパレット4上に搭載されたイケ
ール5の四つの取付は面に公知のやり方で位置決め・固
定されている。前述のように、これらのワークnl +
n2 + n3.n4 は)工作機械の主軸に取
付けられた計測治具6によって、第1加工順位のワーク
n1の加工の開始前にその取付は精度(通り)を−括し
て測定される。FIG. 2 shows a state in which a workpiece is set on a pallet 4 on a worktable 7 at the front of this NC machine tool for machining. In this example, 4 works nl + n2
+ n=l The four mountings of the tombstones 5 with n4 mounted on the pallet 4 are positioned and fixed in a known manner on the surface. As mentioned above, these works nl +
n2 + n3. n4) The measurement jig 6 attached to the main shaft of the machine tool measures the accuracy (accuracy) of the attachment before starting machining of the workpiece n1 in the first machining order.
第3図は、本発明によるワークの処理手順の制御方法を
実行するための流れ図を示す。FIG. 3 shows a flowchart for carrying out a method for controlling a workpiece processing procedure according to the present invention.
本発明によれば、第1の手順として、先ずワークnI
+ n2 + n3+ n4を搭載したパレット
4をワークテーブル7上にセットし、各ワーク毎に順次
に加工位置に位置決めして、工作機械に取付けた計測治
具6によって、その取付は精度を測定する。その測定結
果は、工作機械に付属する前記機械制御装置3内のメモ
リに記憶される。According to the present invention, as a first step, first the work nI
+ n2 + n3 + The pallet 4 loaded with n4 is set on the work table 7, each work is sequentially positioned at the processing position, and the accuracy of the installation is measured using the measuring jig 6 attached to the machine tool. . The measurement results are stored in a memory within the machine control device 3 attached to the machine tool.
イケール5上のすべてのワークについて取付は精度の測
定が終了すると、次の手順として、NC装置2から第1
のワークn、の加ニブログラムが機械制御装置3に呼び
込まれる。機械制御装置3はこの加ニブログラムに規定
されているワークの取付は精度の許容限界と前記測定結
果とを比較する。そして取付は精度が限界内に入ってい
る場合には、ワークn1についての加工が開始される。After completing the measurement of mounting accuracy for all the workpieces on the tombstone 5, the next step is to
The machine control device 3 reads the program of the workpiece n. The machine control device 3 compares the measurement result with the permissible limit of accuracy for mounting the workpiece specified in this Nitrogram. If the mounting accuracy is within the limit, machining of the workpiece n1 is started.
加工が終了すると、次のワークn2についての加ニブロ
グラムが呼び込まれ、ワークn、の場合と同じく取付は
精度の測定結果が加ニブログラム内に規定されている許
容限界と比較され、限界内であれば加工が開始される。When the machining is completed, the machine program for the next workpiece n2 is called in, and as in the case of workpiece n, the mounting accuracy measurement results are compared with the tolerance limits specified in the machine program, and if it is within the limits. Processing is then started.
以下同様にして最後のワークn4の加工が終了すると全
作業が完了する。Thereafter, in the same manner, when the last workpiece n4 is processed, the entire work is completed.
しかし、いずれかのワークにおいて、その取付は精度の
測定結果と許容限界との比較の際に、取付は不良と判断
された場合には、その時点の環境条件に応じて次の二つ
の選択肢が設定されている。However, if the installation of any workpiece is determined to be defective when comparing the accuracy measurement results and the allowable limits, the following two options are available depending on the environmental conditions at that time. It is set.
即ち、オペレータが勤務している有人時間帯の場合には
、直ちに工作機械に付属している警告ランプ8等を点灯
してオペレータにワークの取付は不良の発生を通報する
。これによってオペレータは現場に急行し、自ら取付は
不良の状態を確認する。その結果、簡単に取付けの修正
が可能であれば、修正後に加工の続行をマニュアル指令
する。That is, in the case of manned hours when the operator is on duty, the warning lamp 8 attached to the machine tool is immediately turned on to notify the operator of the occurrence of a defective workpiece installation. This prompts the operator to rush to the site and personally confirm that the installation is defective. As a result, if the installation can be easily corrected, a manual command is given to continue processing after the correction.
しかし、簡単には修正不可能と判断された場合には、こ
のワークについての加工を中止し、次のワークの処理手
順にスキップするようにマニュアル指令する。 一方、
深夜等の無人時間帯においては、オペレータの判断を待
つことができないので、当該ワークについては直ちに加
工を中止して次のワークの処理手順にスキップするよう
に自動的に指令が発せられる。この制御手順を流れ図に
まとめると第3図のようになる。However, if it is determined that it cannot be easily corrected, a manual command is given to stop the machining of this workpiece and skip to the processing procedure for the next workpiece. on the other hand,
During unmanned hours such as late at night, it is not possible to wait for the operator's decision, so a command is automatically issued to immediately stop processing the work and skip to the processing procedure for the next work. This control procedure can be summarized in a flowchart as shown in FIG. 3.
なお、ワークの取付は精度の許容限界との比較は、取付
は精度を計測した直後に、イケールに取付けられている
全ワークについて一括して行ってもよい。Note that the comparison of the workpiece attachment accuracy with the allowable limit may be performed for all the workpieces attached to the tombstone at once, immediately after the attachment accuracy is measured.
以上は、1台のNC工作機械が内部に加ニブログラムを
内蔵している場合についての説明であったが、本発明は
これに限定されるものではなく、複数台のNC工作機械
を共通のホストコンビ5−夕で管理するDNCシステム
等の場合にも同じように適用可能である。この場合、取
付は精度の計測結果の記憶や許容限界値との比較等は、
ホストコンピュータで行われる。The above explanation is about the case where one NC machine tool has a built-in program, but the present invention is not limited to this, and multiple NC machine tools can be connected to a common host. The present invention can be similarly applied to a DNC system or the like managed by a combination network. In this case, the installation will not be able to store the accuracy measurement results or compare them with the allowable limit values.
done on the host computer.
本発明によれば、同一イケール上の複数のワークについ
て、加工開始前に一括してその取付は精度を測定するの
で、測定面への異物の付着による測定誤差が減少し、誤
って取付は精度不良と判断される確率が激減する。According to the present invention, the mounting accuracy of multiple workpieces on the same tombstone is measured all at once before the start of machining, so measurement errors due to foreign matter adhering to the measurement surface are reduced, and incorrect mounting accuracy is measured. The probability of being judged as defective is drastically reduced.
又、取付は不良と判断されたワークの処置を、有人時間
帯と無人時間帯とで変え、オペレータを有効に介在させ
ることによって、取付は不良のワークを可能な限り救済
するようにしたので、機械の稼働率を向上させることが
できる。In addition, by changing the treatment of workpieces determined to be defective during the manned and unattended periods, and by effectively involving the operator, workpieces determined to be defective were salvaged as much as possible. The operating rate of the machine can be improved.
第1図は、本発明方法を適用されるNC工作機械の構成
の一例を示すブロック図、
第2図は、通りの測定の際にNC工作機械の前面)にセ
ットされたワークを示す斜視図、第3図は、本発明によ
るワークの処理手順の制御方法を実行するた袷の流れ図
である。
1−・工作機械本体、
2−・−NC装置、
3−機械制御装置、
4−パレット、
5−イケール、
6−計測治具、
7−ワークテーブル、
8−警告ランプ、
n+ + nt + nn + nn −ワーク
。Fig. 1 is a block diagram showing an example of the configuration of an NC machine tool to which the method of the present invention is applied, and Fig. 2 is a perspective view showing a workpiece set on the front surface of the NC machine tool during street measurement. , FIG. 3 is a flowchart for carrying out the method for controlling a workpiece processing procedure according to the present invention. 1-Machine tool body, 2--NC device, 3-Machine control device, 4-Pallet, 5-Tombstone, 6-Measuring jig, 7-Work table, 8-Warning lamp, n+ + nt + nn + nn - work.
Claims (1)
おいて、該NC工作機械のワークテーブル上のイケール
に取付けられた複数のワークの取付け精度を、第1加工
順位のワークの加工開始前に一括して計測し、前記各ワ
ークの加工開始前に前記計測結果と所定の許容限界とを
比較し、該許容限界内にある場合にはそのまま加工を実
行し、前記許容限界を外れている場合には所定の対策処
理を行うように制御することを特徴とするNC工作機械
の制御方法。 2、前記所定の対策処理は、有人時間帯においては警報
を発してワークの取付け不良をオペレータに通報し、無
人時間帯においては当該ワークの加工をスキップするこ
とを特徴とする請求項1に記載のNC工作機械の制御方
法。[Claims] 1. In an NC machine tool having a workpiece mounting accuracy measurement function, the mounting accuracy of a plurality of workpieces mounted on tombstones on the work table of the NC machine tool is measured by processing the workpiece in the first processing order. The measurement results are measured all at once before the start of processing, and the measurement results are compared with a predetermined tolerance limit before the start of machining of each workpiece, and if the result is within the tolerance limit, the machining is carried out as is, and if the workpiece is outside the tolerance limit. 1. A control method for an NC machine tool, characterized in that control is performed so that predetermined countermeasure processing is performed when the problem occurs. 2. The predetermined countermeasure processing according to claim 1, wherein the predetermined countermeasure process is to issue an alarm to notify an operator of a workpiece installation failure during a manned time period, and to skip machining of the workpiece during an unmanned time period. Control method for NC machine tools.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP20150890A JP2693022B2 (en) | 1990-07-31 | 1990-07-31 | NC machine tool control method |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP20150890A JP2693022B2 (en) | 1990-07-31 | 1990-07-31 | NC machine tool control method |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH0487753A true JPH0487753A (en) | 1992-03-19 |
JP2693022B2 JP2693022B2 (en) | 1997-12-17 |
Family
ID=16442213
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP20150890A Expired - Lifetime JP2693022B2 (en) | 1990-07-31 | 1990-07-31 | NC machine tool control method |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP2693022B2 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2011233001A (en) * | 2010-04-28 | 2011-11-17 | Brother Ind Ltd | Numerical control device |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2005253563A (en) * | 2004-03-10 | 2005-09-22 | Takao:Kk | Game machine |
JP2006334009A (en) * | 2005-05-31 | 2006-12-14 | Samii Kk | Pinball game machine |
JP2007111105A (en) * | 2005-10-18 | 2007-05-10 | Heiwa Corp | Game machine |
JP2007260296A (en) * | 2006-03-29 | 2007-10-11 | Samii Kk | History information providing server |
JP2009119050A (en) * | 2007-11-15 | 2009-06-04 | Okumura Yu-Ki Co Ltd | Pachinko game machine |
JP2009172065A (en) * | 2008-01-22 | 2009-08-06 | Taiyo Elec Co Ltd | Pinball game machine |
-
1990
- 1990-07-31 JP JP20150890A patent/JP2693022B2/en not_active Expired - Lifetime
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2005253563A (en) * | 2004-03-10 | 2005-09-22 | Takao:Kk | Game machine |
JP2006334009A (en) * | 2005-05-31 | 2006-12-14 | Samii Kk | Pinball game machine |
JP2007111105A (en) * | 2005-10-18 | 2007-05-10 | Heiwa Corp | Game machine |
JP2007260296A (en) * | 2006-03-29 | 2007-10-11 | Samii Kk | History information providing server |
JP2009119050A (en) * | 2007-11-15 | 2009-06-04 | Okumura Yu-Ki Co Ltd | Pachinko game machine |
JP2009172065A (en) * | 2008-01-22 | 2009-08-06 | Taiyo Elec Co Ltd | Pinball game machine |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2011233001A (en) * | 2010-04-28 | 2011-11-17 | Brother Ind Ltd | Numerical control device |
Also Published As
Publication number | Publication date |
---|---|
JP2693022B2 (en) | 1997-12-17 |
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