JPS59161250A - Breakage sensing method for cutting-off tool - Google Patents

Breakage sensing method for cutting-off tool

Info

Publication number
JPS59161250A
JPS59161250A JP58033095A JP3309583A JPS59161250A JP S59161250 A JPS59161250 A JP S59161250A JP 58033095 A JP58033095 A JP 58033095A JP 3309583 A JP3309583 A JP 3309583A JP S59161250 A JPS59161250 A JP S59161250A
Authority
JP
Japan
Prior art keywords
tool
main shaft
cutting
drive shaft
spindle
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
JP58033095A
Other languages
Japanese (ja)
Other versions
JPH0323281B2 (en
Inventor
Minoru Uchibori
内堀　実
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.)
Citizen Holdings Co Ltd
Citizen Watch Co Ltd
Original Assignee
Citizen Holdings Co Ltd
Citizen Watch 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 Citizen Holdings Co Ltd, Citizen Watch Co Ltd filed Critical Citizen Holdings Co Ltd
Priority to JP58033095A priority Critical patent/JPS59161250A/en
Publication of JPS59161250A publication Critical patent/JPS59161250A/en
Publication of JPH0323281B2 publication Critical patent/JPH0323281B2/ja
Granted legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q17/00—Arrangements for observing, indicating or measuring on machine tools
    • B23Q17/09—Arrangements for observing, indicating or measuring on machine tools for indicating or measuring cutting pressure or for determining cutting-tool condition, e.g. cutting ability, load on tool
    • B23Q17/0952—Arrangements for observing, indicating or measuring on machine tools for indicating or measuring cutting pressure or for determining cutting-tool condition, e.g. cutting ability, load on tool during machining
    • B23Q17/0957—Detection of tool breakage
    • 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
    • G05B2219/37—Measurements
    • G05B2219/37583—Detect separation, cutting, penetration, piercing, break through material
    • 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
    • G05B2219/45—Nc applications
    • G05B2219/45125—Four axis, spindle lathe

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Turning (AREA)
  • Machine Tool Sensing Apparatuses (AREA)

Abstract

PURPOSE:To facilitate sensing of breakage of a cutting-off, in an NC automatic lathe having a drive shaft solely devoted to process the back surface, by sensing revolutions of the spindle, after the cutting-off process is completed, from the rotation of said back face processing drive shaft, which rotates while gripping the foremost end of the work to be processed. CONSTITUTION:In this automatic lathe, a tool arranged on a tallet tool rest 5 performs intended machining to a rod, which is inserted in the spindle 2 and whose foremost end is gripped by a chuck 17, and when the whole processing is completed, a cutting-off tool T1 shall cut away the work W. At this time a drive shaft 19 for processing the back surface is advanced, an the foremost end of the work W is inserted in a collet chuck 22 and gripped firmly, and then the cutting-off operation is carried out. After this operation, the spindle 2 is stopped, while a drive shaft 9 is solely rotated slowly, and when the tool T1 is broken, the work W does not separate from the rod and the spindle rotates along with the drive shaft 19. The revolutions of this spindle 2 are sensed by an encoder 9 to judge if the tool T1 is broken.

Description

【発明の詳細な説明】 本発明は突切りバイトの折れの検出方法に係るものであ
り、特に棒材加工用のＮＣ自動旋盤で背面加工用の駆動
軸を有するものに適用して好適な突切りバイトの折れの
検出方法に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for detecting breakage in a parting tool, and is particularly suitable for use in NC automatic lathes for bar processing that have a drive shaft for back processing. This invention relates to a method for detecting breakage of a cutting tool.

棒材加工用の自動旋盤では、長尺の棒材を主軸の後端か
ら挿通し、先端から突出させた棒材を主軸のチャンクで
把持して回転し、これに切削加工等を行い、最後に突切
りバイトで切落して製品とする工程を繰返している。こ
こで、突切りバ、イトは、製品の切落しに用いられるの
みでなく１．製品切落し後の棒材の押し出しのストッパ
ーにも通常使用されている。In automatic lathes for bar processing, a long bar is inserted through the rear end of the main spindle, the bar protruding from the tip is gripped by a chunk of the main spindle, rotated, and then cut, etc. The process of cutting it off with a cut-off tool and making it into a product is repeated. Here, the cut-off bar is used not only for cutting off the product, but also for 1. It is also commonly used as a stopper for extruding bars after cutting off the product.

しかし、周知のように突切りバイトの巾は非常に狭いも
のであり、横方向からの何らかの衝撃や過大な切削負荷
によって折れることがある。突切りバイトが折れると棒
材が切落されないまま押し出されることになるので・、
単に製品が不良となるばかりでなく、他の機構部品と干
渉したり、カバーを押し破り、或いは振り回されて他の
機構部品を損傷するなどの恐れが生じる。However, as is well known, the width of the parting tool is very narrow, and it may break due to some type of impact from the lateral direction or excessive cutting load. If the parting tool breaks, the bar will be pushed out without being cut off.
Not only will the product be defective, but there is also a risk that it will interfere with other mechanical parts, break the cover, or be thrown around and damage other mechanical parts.

このため、各種のバイト折れ検出装置が開発され、使用
されているが、これらはいずれも、通常の自動旋盤に新
たに検出装置を追加するものであってコスト高となり、
更に、光電管を使用したり、接点の接触によるものなど
で、切削油や切粉の付着によって誤動作する恐れのある
ものであった。For this reason, various tool breakage detection devices have been developed and are in use, but all of these require a new detection device to be added to a normal automatic lathe, resulting in high costs.
Furthermore, since a phototube is used or the contacts are in contact, there is a risk of malfunction due to adhesion of cutting oil or chips.

本発明は、このような追加の検出装置を使用することな
く、且つ、切削油や切粉の存在に関係なく確実な突切り
バイトの折れの検出方法を提供しようとするものである
。The present invention aims to provide a reliable method for detecting breakage of a parting tool without using such an additional detection device and regardless of the presence of cutting oil or chips.

棒材加工用のＮＣ自動旋盤、特にガイドブツシュを有し
、このガイドブツシュの口元で切削する形式のＮＣ自動
旋盤は、細長部品の加工に好適であり、各種アタッチメ
ントが揃っていて、１回の加工工程で通常の旋削加工の
みならず各種の２次加工も可能であって、部品加工が１
工程で終了する点に最大の特徴を有している。これらア
タッチメント類のうちでも、背面加工用の駆動軸装置は
比較的使用されることが多いものであり、背面、即ち突
切り面側からの加工（面取り、ネジ切りなど）に多用さ
れている。NC automatic lathes for bar machining, especially NC automatic lathes that have a guide bush and perform cutting at the mouth of the guide bush, are suitable for machining long and narrow parts, and have a variety of attachments. In addition to normal turning machining, various types of secondary machining are possible in the same machining process, and parts machining can be done in one step.
The biggest feature is that it is completed in a process. Among these attachments, drive shaft devices for back surface machining are relatively often used, and are frequently used for machining (chamfering, thread cutting, etc.) from the back surface, that is, from the parting surface side.

本発明は、この背面加工用の駆動軸、特にその軸心が主
軸中心と一致しているものに限ってのみ使用可能な方法
ではあるが、有効且つ確実な突切りバイトの折れの検出
方法である。Although the present invention is a method that can only be used with drive shafts for back machining, especially those whose shaft center coincides with the center of the main shaft, it is an effective and reliable method for detecting breakage of a parting tool. be.

以下、本“発明を実施例に基づいて説明する。Hereinafter, the present invention will be explained based on examples.

第１図は、主軸と背面加工用の駆動軸とを有し、その軸
心が一致しているＮＣ自動旋盤の１例の要部を示す断面
図であって、ベッド１の上面を軸方向に沿って摺動する
主軸２と、主軸２の前方（図では右方）にあって、主軸
２と同心に設けられたガイドプツシ−３とを有してし・
る。ガイドプツシ＝６の上方には、直立したコラム４に
沿って上下動するターレット刃物台５があり間板数個の
加工工具が取付けられていて、ガイドブツシュ６の口元
で切削等の加工を行うように構成されて見・る。FIG. 1 is a cross-sectional view showing the essential parts of an example of an NC automatic lathe having a main spindle and a drive shaft for back processing, the axes of which are aligned. It has a main shaft 2 that slides along the main shaft 2, and a guide pusher 3 that is located in front of the main shaft 2 (to the right in the figure) and is provided concentrically with the main shaft 2.
Ru. Above the guide pusher 6, there is a turret tool rest 5 that moves up and down along an upright column 4, and several processing tools are attached between them, and the mouth of the guide pusher 6 performs processing such as cutting. It looks structured like this.

主軸２は、公知のように、ＮＣ制御されたＤＣモータな
どの駆動源６からの駆動力がベルト７によって主軸プー
リ８に伝達されて所要の回転数で回転１駆動される。主
軸２０回転は他の確実な伝達機構、例えば歯車、歯付ベ
ルトなどでエンコーダ９に伝えられ、主軸２０回転角度
又は回転数が検出され、所定の回転数で回転し−或いは
所定の回転角度だけ回転して停止したことを確認する。As is well known, the driving force from a drive source 6 such as an NC-controlled DC motor is transmitted to the main shaft pulley 8 via a belt 7, and the main shaft 2 is driven one rotation at a required rotation speed. The 20 rotations of the main shaft are transmitted to the encoder 9 by another reliable transmission mechanism, such as gears or toothed belts, and the rotation angle or number of rotations of the main shaft 20 is detected, and the main shaft 20 rotates at a predetermined number of rotations or by a predetermined rotation angle. Make sure it rotates and stops.

主軸２は、前述のようにベッド１に設けられたガイドウ
ェイに沿って主軸軸方向に摺動する。即ち、図示されて
いたいＮＣ制御された駆動源によってボールネジのスク
リュー１０が回転することによって、主軸２はボールネ
ジのナツト１１と共に前後方向（図では左右方向）に摺
動する。The main shaft 2 slides along the guideway provided in the bed 1 in the direction of the main shaft axis as described above. That is, when the screw 10 of the ball screw is rotated by an NC-controlled drive source (not shown), the main shaft 2 slides in the front-rear direction (left-right direction in the figure) together with the nut 11 of the ball screw.

ターレット刃物台５は、前述したように、直立したコラ
ム４に設けてあり、図示しないＮＣ制御の駆動源によっ
て駆動されて上下動する。ターレット刃物台５には複数
個の工具が取付可能であり、図面では突切りパイ）ＴＩ
及び横穴明は用ドリルＴ２が例示されているが、その他
に通常の切削用バイト、正面又は背面からの加工用のド
リル又はタップなどが取付可能となっている。ターレッ
ト刃物台５は、駆動モータ１２の回転によって、輪列１
゛６を経て割出回転され、カップリング１４によって正
確に位置決め固定されて所定の工具による加工が可能と
なる。一方、ターレット刃物台５に取付けられた回転工
具、例えば横穴明は用ドリルＴ２は、モータ１５の回転
が伝達され、傘歯車対１６を経て回転駆動される。As described above, the turret tool post 5 is provided on the upright column 4, and is driven by an NC-controlled drive source (not shown) to move up and down. A plurality of tools can be attached to the turret tool rest 5, and in the drawing, a parting tool) TI
Although a drill T2 is shown as an example for making horizontal holes, it is also possible to attach a normal cutting tool, a drill or tap for machining from the front or back, etc. The turret tool rest 5 rotates the wheel train 1 by the rotation of the drive motor 12.
It is indexed and rotated through 6, and is accurately positioned and fixed by the coupling 14, allowing machining with a predetermined tool. On the other hand, the rotation of the motor 15 is transmitted to a rotary tool attached to the turret tool rest 5, such as a horizontal hole drill T2, and the rotary tool is driven to rotate via a pair of bevel gears 16.

被加工物（棒材）は主軸２の中空穴に後端（図では左端
）から挿入され、コレットチャック１７を挿通してガイ
ドブツシュ６で支持される。コレットチャック１７は公
知のチャック開閉機構１８によって開閉され、棒材を把
持したり開放したりする。棒材は、適当な材料供給手段
（図示せず）によって前方に向って押圧されていること
は周知の通りである。A workpiece (bar) is inserted into the hollow hole of the main shaft 2 from the rear end (left end in the figure), passes through the collet chuck 17, and is supported by the guide bush 6. The collet chuck 17 is opened and closed by a known chuck opening/closing mechanism 18 to grip and release the bar material. It is known that the bar is pushed forward by suitable material supply means (not shown).

背面加工用の駆動軸１９は、ガイドブツシュ６０元の加
工域をはさんで主軸２に対向し、且つ同心−に設けられ
ている。この背面加工用の駆動軸１９は、主軸２とほぼ
同様の構成を有しており、ＮＣ制御される回転駆動用モ
ータ２００回転によって回転、駆動され、ベッド１に固
定されたガイドウェイに沿って軸方向に摺動し、ボール
ネジ２１によって駆動される。駆動軸１９はコレットチ
ャック２２及びチャック開閉機構２６を有しており、主
軸側での加工終了後、突切りノ（イトで切離されたワー
クを把持するようになっている。駆動軸１９の中空穴に
はノックアウト軸２４が挿通しており、ノックアウト装
置２５によって作動して、背面加工終了後のワークを押
し出すようになっている。The drive shaft 19 for back surface machining is provided concentrically with and facing the main shaft 2 across the machining area of the guide bush 60. This drive shaft 19 for back processing has almost the same configuration as the main shaft 2, is rotated and driven by an NC-controlled rotary drive motor 200 revolutions, and is rotated along a guideway fixed to the bed 1. It slides in the axial direction and is driven by a ball screw 21. The drive shaft 19 has a collet chuck 22 and a chuck opening/closing mechanism 26, and is configured to grip the workpiece separated by a parting nozzle after machining on the main shaft side is completed. A knockout shaft 24 is inserted through the hollow hole, and is operated by a knockout device 25 to push out the work after the back surface machining is completed.

次に、作動を説明する。Next, the operation will be explained.

被加工物（棒材）は、主軸２を挿通して先端がガイドブ
ツシュ３に達し、コレットチャック１７に把持されて回
転する。ターレット刃物台５１Ｌ取付けられた所要の工
具が選択されて、ターレット刃物台５が割出され、下降
して加工域に達し、主軸２の前後進と刃物台５の上下動
が組み合されて所要の加工が行われる。上記所要の加工
が全て終了すると最後に突切りバイトＴ１による突切り
工程となる。The workpiece (bar material) is inserted through the main shaft 2 so that its tip reaches the guide bush 3, and is gripped by the collet chuck 17 and rotated. The required tool attached to the turret tool rest 51L is selected, the turret tool rest 5 is indexed, descends and reaches the machining area, and the back and forth movement of the main spindle 2 and the vertical movement of the tool rest 5 are combined to perform the required tool. processing is performed. When all of the above-mentioned required machining is completed, the final step is a cutting-off process using the cutting-off bit T1.

このとき、背面加工用の駆動軸１９は前進（図では左進
）してコレットチャック２２内にワークＷの先端を挿入
し、チャックし、主軸２０回転に従って共に回転する。At this time, the drive shaft 19 for back processing moves forward (leftward in the figure), inserts the tip of the workpiece W into the collet chuck 22, chucks it, and rotates together with the main shaft 20 rotations.

次いで刃物台５が下降して突切り作業が行なわれる。突
切り作業が終了すると主軸２は停止し、次いで背面加工
用の駆動軸１９が所定の回転数でゆるやかに回転する。Next, the tool post 5 is lowered and the cutting operation is performed. When the cut-off work is completed, the main shaft 2 stops, and then the drive shaft 19 for back surface machining slowly rotates at a predetermined number of revolutions.

このとき、突切りパイ）ＴＩが正常ならば、ワークＷは
完全に切離されているので背面加工用の駆動軸１９のみ
が回転し、主軸２は回転しないので、主軸２０回転を検
出するエンコーダ９は回転せず、主軸２は停止している
ことを表示する。もし、突切りバイトが折れている場合
には、ワークＷは棒材かも切離されていないので、背面
加工用の駆動軸１９の回転と共に主軸２も１体となって
回転するので、エンコーダ９も回転し、主軸２０回転が
検出される。At this time, if the parting pie) TI is normal, the work W has been completely separated, so only the drive shaft 19 for back processing rotates, and the main shaft 2 does not rotate, so the encoder detects the 20 rotations of the main shaft. 9 indicates that it does not rotate and the main shaft 2 is stopped. If the parting tool is broken, the workpiece W is not separated from the bar material, so the main shaft 2 rotates as one unit with the rotation of the drive shaft 19 for back processing, so the encoder 9 The main shaft also rotates, and 20 rotations of the main shaft are detected.

従って、主軸２が回転しないときには、突切りパイ）Ｔ
Ｉは正常であると判定し、次工程の背面加工に進み、主
軸２が所定の時間内に所定回転数又は所定角度以上回転
したときには、突切りバイトＴ１が折れているものと判
定する。主軸２が回転しても、前記所定回転数又は所定
角度に達しないときには、主軸２が伺らかの事情で自然
に回転したものとして一突切りバイトＴＩは正常である
と判定する。Therefore, when the main shaft 2 does not rotate, the cut-off pie)T
It is determined that I is normal, and the process proceeds to the next step of back processing, and when the main spindle 2 rotates at a predetermined number of rotations or a predetermined angle or more within a predetermined time, it is determined that the parting tool T1 is broken. Even if the spindle 2 rotates, if the predetermined rotational speed or the predetermined angle is not reached, it is determined that the spindle 2 has rotated naturally due to some reason and that the one-cutting tool TI is normal.

突切りパイ）ＴＩが折れていると判定されたときには、
機械をそのまま停止し、そのような機能を有する場合に
は、突切りバイトの折れを表示し、作業者を呼ぶための
警報手段が作動する。Cut-off pie) When it is determined that the TI is broken,
If the machine is stopped and has such a function, an alarm means is activated to display the breakage of the parting tool and to call the operator.

突切りパイ）ＴＩが正常であると判定されたときには、
前述の如く背面加工の工程を行なう。即ち、背面加工用
の駆動軸１９が後退するとともに、主軸チャンク１７が
開いて主軸２が後退し、次の加工のために所定量だけ棒
材が突出してチャック１７が閉じ、ターレット刃物台５
が上昇する。次℃・で、ターレット刃物台５が回転して
背面加工用の工具を選択し、下降し、背面加工用の駆動
軸が前進して背面加工を行なう。背面加工の工程が終了
するとノックアウト軸２４で完成したワークを押し出し
、次のワークの加工工程に入る。Cut-off pie) When TI is determined to be normal,
The back surface processing process is performed as described above. That is, as the drive shaft 19 for back machining retreats, the spindle chunk 17 opens and the spindle 2 retreats, the bar protrudes by a predetermined amount for the next machining, the chuck 17 closes, and the turret tool rest 5
rises. At the next temperature of .degree. C., the turret tool post 5 rotates to select a tool for back surface machining and descends, and the drive shaft for back surface machining moves forward to perform back surface machining. When the back surface machining process is completed, the completed workpiece is pushed out by the knockout shaft 24, and the process of machining the next workpiece begins.

本発明は、以上のようにして行なわれるので、突切りバ
イトの折れを検出するための特別の機構を要せず、更に
、光学的又は接触式の検出とは異なり、切削油や切粉の
存在によって誤動作する恐れは全くな（、確実な検出が
可能となるようにし゛た突切りバイトの折れの検出方法
である。Since the present invention is carried out as described above, there is no need for a special mechanism for detecting the breakage of the parting tool, and furthermore, unlike optical or contact detection, cutting oil and chips are detected. There is absolutely no risk of malfunction due to the presence of the parting tool (this is a method for detecting breakage in a parting tool that enables reliable detection).

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

第１図は、主軸と背面加工用の駆動軸とを有し、その軸
心が一致しているＮＣ自動旋盤の１例の要部を示す断面
図である。 ２・・・・・主軸、６・・・・・・ガイドブツシュ、５
・・・・・・ターレット刃物台、 ６・・・・・主軸駆動源、９・・・・・エンコーダ、１
９・・・・背面加工用の１駆動軸、 ２０・・・・背面加工用駆動軸駆動源。FIG. 1 is a sectional view showing a main part of an example of an NC automatic lathe having a main shaft and a drive shaft for back processing, the axes of which are aligned. 2...Main shaft, 6...Guide bushing, 5
...Turret turret, 6...Main shaft drive source, 9...Encoder, 1
9... 1 drive shaft for back processing, 20... Drive shaft drive source for back processing.

Claims (1)

【特許請求の範囲】[Claims] 主軸と、該主軸に対向し軸心が一致して設けられた背面
加工用の駆動軸とを有する棒材加工用のＮＣ自動旋盤に
おいて、突切り工程においては棒材を主軸で把持して回
転すると共に背面加工用の駆動軸で加工済の先端部を把
持して主軸と共に回転し、突切り工程終了後主軸の回転
を停止し、次いで、背面加工用の駆動軸を回転し、この
回転が主軸に伝導されるか否かを主軸回転検出用の回転
検知機構で検知し、主軸が所定回転以上回転したときに
は突切りバイトが折れていると判定することを特徴とす
る突切りバイトの折れ検出方法。In an NC automatic lathe for bar processing, which has a main shaft and a drive shaft for back processing that is provided opposite to the main shaft and aligned with the axis, the bar is gripped by the main shaft and rotated in the cutting-off process. At the same time, the drive shaft for back processing grips the machined tip and rotates with the main shaft, and after the parting process is completed, the rotation of the main shaft is stopped.Then, the drive shaft for back processing is rotated, and this rotation Breakage detection of a parting tool, characterized in that a rotation detection mechanism for detecting rotation of the main shaft detects whether or not the power is transmitted to the main shaft, and it is determined that the cutting tool is broken when the main shaft rotates more than a predetermined rotation. Method.
JP58033095A 1983-03-01 1983-03-01 Breakage sensing method for cutting-off tool Granted JPS59161250A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP58033095A JPS59161250A (en) 1983-03-01 1983-03-01 Breakage sensing method for cutting-off tool

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP58033095A JPS59161250A (en) 1983-03-01 1983-03-01 Breakage sensing method for cutting-off tool

Publications (2)

Publication Number Publication Date
JPS59161250A true JPS59161250A (en) 1984-09-12
JPH0323281B2 JPH0323281B2 (en) 1991-03-28

Family

ID=12377101

Family Applications (1)

Application Number Title Priority Date Filing Date
JP58033095A Granted JPS59161250A (en) 1983-03-01 1983-03-01 Breakage sensing method for cutting-off tool

Country Status (1)

Country Link
JP (1) JPS59161250A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6311202A (en) * 1986-05-31 1988-01-18 インデツクス−フエルバルツングス−ゲゼルシヤフト　ミツト　ベシユレンクテル　ハフツング Method and device for inspecting operation of lathe
EP0585845A2 (en) * 1992-09-01 1994-03-09 GRUNDIG Aktiengesellschaft Cutting-off control
WO1995008141A1 (en) * 1993-09-13 1995-03-23 Grundig Ag Process for monitoring bar cutoff on automatic bar lathes

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6311202A (en) * 1986-05-31 1988-01-18 インデツクス−フエルバルツングス−ゲゼルシヤフト　ミツト　ベシユレンクテル　ハフツング Method and device for inspecting operation of lathe
EP0585845A2 (en) * 1992-09-01 1994-03-09 GRUNDIG Aktiengesellschaft Cutting-off control
EP0585845A3 (en) * 1992-09-01 1996-07-17 Grundig Ag Cutting-off control
WO1995008141A1 (en) * 1993-09-13 1995-03-23 Grundig Ag Process for monitoring bar cutoff on automatic bar lathes
US5975746A (en) * 1993-09-13 1999-11-02 Dr. Johannes Heidenhain Gmbh Process for monitoring bar cutoff on automatic bar lathes

Also Published As

Publication number Publication date
JPH0323281B2 (en) 1991-03-28

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