JPS60127907A - Control method of cutting in boring machine - Google Patents

Control method of cutting in boring machine

Info

Publication number
JPS60127907A
JPS60127907A JP23496083A JP23496083A JPS60127907A JP S60127907 A JPS60127907 A JP S60127907A JP 23496083 A JP23496083 A JP 23496083A JP 23496083 A JP23496083 A JP 23496083A JP S60127907 A JPS60127907 A JP S60127907A
Authority
JP
Japan
Prior art keywords
rotation
boring
cutting tool
cutting
speed
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP23496083A
Other languages
Japanese (ja)
Inventor
Masayuki Taguchi
田口 正之
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.)
Amada Co Ltd
Original Assignee
Amada 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 Amada Co Ltd filed Critical Amada Co Ltd
Priority to JP23496083A priority Critical patent/JPS60127907A/en
Publication of JPS60127907A publication Critical patent/JPS60127907A/en
Pending legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G05CONTROLLING; REGULATING
    • G05BCONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B19/00Programme-control systems
    • G05B19/02Programme-control systems electric
    • G05B19/18Numerical 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
    • G05B19/416Numerical 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 of velocity, acceleration or deceleration

Landscapes

  • Engineering & Computer Science (AREA)
  • Human Computer Interaction (AREA)
  • Manufacturing & Machinery (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • Automatic Control Of Machine Tools (AREA)
  • Drilling And Boring (AREA)

Abstract

PURPOSE:To reduce vibration and noise in cutting and improve its surface roughness, by arithmetically comparing the present rotary speed signal of a cutting tool with its programmand speed signal so as to control a driving power source for rotating the cutting tool in accordance with this arithmetic compared result when the cutting tool of a boring machine is rotated. CONSTITUTION:When a boring machine performs its boring work by causing a motor 4 through a transmission gear 5 to turn a spindle 2 equipped in a spindle head S and mounting a cutting tool 1 for boring, a present rotary speed of the cutting tool 1 is derected in a present rotary speed detecting part 18 by a pulse signal of rotation from a rotation pluse detector 17. An arithmetic part 22, arithmetically comparing this present rotary speed with a programmed mode of rotary speed from a programmed speed memory unit 21, outputs a deviation signal to a correcting part 23. Then a correction signal obtained here is given to a control part 24, correcting a motor control signal due to a setter part 20 thus controlling the motor 4 so that the cutting tool 1 for boring may be rorated in the programmed mode of rotary speed in a present speed of the cutting tool 1.

Description

【発明の詳細な説明】 本発明は中ぐり盤における切削制御方法に関するもので
ある。
DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a cutting control method in a boring machine.

一般に中ぐり切削は回転されている中ぐリバイ1〜に対
し被削材を相対的に移動させることにより行なわれるが
、中ぐり加工における面粗度やこの面粗度に影響を及ぼ
す振動、或はこの振動に起因する騒音などには、中ぐリ
パイトの切削運動や前記バイトと被剛材の相対送り運動
が深く関与している。
Generally, boring cutting is performed by moving the workpiece relative to the rotating boring reby 1~, but the surface roughness during boring, vibrations that affect this surface roughness, The noise caused by this vibration is deeply related to the cutting motion of the center repite and the relative feeding motion between the cutting tool and the rigid material.

即ち、従来、面粗度の向上や振動、騒音の低減は、被削
材の材質などを考慮して、中ぐリバイ]・の切込量や回
転速度、戒は被削材の相対送り速度を最適条件と考えら
れる値に設定して切削しているからである。
In other words, conventionally, improvement of surface roughness and reduction of vibration and noise have been achieved by considering the material of the workpiece, etc., and determining the depth of cut, rotational speed, and relative feed rate of the workpiece. This is because cutting is performed with the values set to values that are considered to be optimal conditions.

しかし、従来の対応策でも依然として振動問題があり、
また、このため重切削を実施しにくいという難点がある
However, even with conventional countermeasures, vibration problems still exist.
Additionally, there is a problem in that it is difficult to carry out heavy cutting.

本発明は上記の中ぐり切削の現状に鑑み、中ぐり加工に
おけ゛る切削運動をその運動中に可変制御することによ
り、振動、騒音の軽減と共に面粗度の向上を図り、また
、従来は不可能であった重切削をも可能にする制御方法
を提供することを目的としてなされたもので、その構成
は、中ぐり盤にお番フる中ぐリバイトの回転速度を、該
バイトのスピン1くルに設けた回転パルス検出器から供
給される回転角パルス信号を適宜の時間パルスに対応さ
せて回転角/時間、又は、時間/回転角で表わされるパ
ルス信号による現在回転速度信号で検出するようにして
おく一方、前記バイ1−の回転駆動源を、そのパイ1〜
について選択された回転速度の増減を含み任意に設定す
る回転角/時間、又は、時間/回転角を表わすパルス信
号による予定回転速度信号によって駆動し、前記バイト
の回転時、現在回転速度信号と予定速度信号とを比較演
算し、この演算結果によって上記駆動源を制御すること
により、中ぐリバイトの回転速度を適宜の範囲で増減さ
せることを特徴とするものである。
In view of the above-mentioned current state of boring cutting, the present invention aims to reduce vibration and noise and improve surface roughness by variably controlling cutting motion during boring processing, and to improve surface roughness as well as to reduce vibration and noise. This was developed with the aim of providing a control method that would enable heavy cutting, which was previously impossible, and its configuration was to control the rotational speed of the boring rebit placed on the boring machine by controlling the rotational speed of the boring tool. A rotation angle pulse signal supplied from a rotation pulse detector installed in one spin wheel is matched with an appropriate time pulse to generate a current rotation speed signal based on a pulse signal expressed as rotation angle/time or time/rotation angle. At the same time, the rotary drive source of the pie 1- is
When the cutting tool is rotated, the current rotation speed signal and the scheduled rotation speed are driven by an arbitrarily set rotation angle/time including an increase/decrease in the rotation speed selected for The present invention is characterized in that the rotational speed of the center rivet is increased or decreased within an appropriate range by comparing and calculating the speed signal and controlling the drive source based on the result of this calculation.

次に本発明の実施の一例を図に拠り説明する。Next, an example of implementation of the present invention will be explained with reference to the drawings.

■は中ぐり盤の主軸頭Sにおいて、スピンドル2の先端
側に取附けられた中ぐリバイ1−53はクイル、4は前
記中ぐリバイトlの回転駆動源として設けたモータ、5
は該モータ4とスピンドル2の間に挿入した減速機など
を含む伝動機構で、上記1〜5を含む主軸頭Sはベース
」二に立設したコラム6に上下自在に装着される。面し
て、コラム6には上記主軸頭Sの上下摺動を支持案内す
る摺動案内部7とその送り機構となる主軸頭送りネジ8
及びその駆動源である減速系を含むモータ9とが設けら
れている。
(2) is the boring machine's spindle head S, and the boring rivet 1-53 attached to the tip side of the spindle 2 is a quill; 4 is the motor provided as a rotation drive source for the boring rivet 1; 5
is a transmission mechanism including a speed reducer inserted between the motor 4 and the spindle 2, and the spindle head S including the above-mentioned 1 to 5 is mounted on a column 6 erected on the base 2 so as to be vertically movable. Facing this, the column 6 has a sliding guide section 7 that supports and guides the vertical sliding of the spindle head S, and a spindle head feed screw 8 that serves as its feeding mechanism.
and a motor 9 including a deceleration system serving as its driving source.

一方、10は前記主軸頭Sの手前下方に設けたベッド、
11は該ベッド10上にスピンドル2と平行な向きで摺
動自在に載架されたサドルで、該サドルIIはベッド1
0内に架設されたサドル送りネジ12にサドル11側の
ナツト部材11aが螺され、且つ、前記ネジ12がモー
タ13に正、逆転されることにより切削送りなどの各送
り、或は、位置決めがなされるようにしである。
On the other hand, 10 is a bed provided below the front of the spindle head S;
Reference numeral 11 denotes a saddle that is slidably mounted on the bed 10 in a direction parallel to the spindle 2, and the saddle II is mounted on the bed 10.
A nut member 11a on the side of the saddle 11 is screwed into a saddle feed screw 12 installed in the saddle feed screw 12, and the screw 12 is rotated forward and reverse by a motor 13 to perform various feeds such as cutting feed or positioning. Let it be done.

14は上記サドル11側に前記スピンドル2と交直する
方向・で摺動自在に載架したテーブルで、このテーブル
14はサドル内に配設したテーブル送りネジ(図に表わ
れず)にテーブル側のナツト部材(図に表われず)が螺
合されており、且つ、その送りネジがモータ15により
正、逆回転されることにより各種の送り、或は位置決め
がなされるようにしである。尚、ここではテーブル14
には割出しテーブル16が付設されており、以上1〜1
Gにより横巾ぐり盤の一例の基本構成をなす。
Reference numeral 14 denotes a table mounted on the saddle 11 side so as to be slidable in a direction orthogonal to the spindle 2. A nut member (not shown) is screwed together, and the feed screw is rotated forward and reverse by a motor 15 to perform various kinds of feeding or positioning. In addition, here Table 14
is attached with an indexing table 16, and the above 1 to 1
G forms the basic configuration of an example of a widthwise boring machine.

而して、従来の中ぐり盤では、中ぐり加工の際、被削材
の材質や使用する中ぐリバイトの材質などにより中ぐリ
バイト、即ち、スピンドル2の回転数を予め機械内に設
定されている変速範囲内から選択し、このスピンドルを
定速回転させ、中ぐす切削を行なっているのが現状であ
る。
Therefore, in conventional boring machines, during boring, the number of revolutions of the spindle 2 is set in advance in the machine depending on the material of the workpiece and the material of the boring rebit to be used. Currently, the spindle is rotated at a constant speed to perform boring cutting.

しかし、中ぐリバイトの定速回転による切削では、切削
時に生じる振動が一定周波数であるため共振して増幅さ
れ易く、また、この増幅された振動によって面粗度が低
下するという難点がある。
However, in cutting by constant speed rotation in boring rebiting, the vibration generated during cutting has a constant frequency, so it resonates and is likely to be amplified, and this amplified vibration has the disadvantage that surface roughness decreases.

この難点はバイトの回転数が低い重切削において特に顕
著に表われ、重切削が困難である原因ともなっている。
This difficulty is particularly noticeable in heavy cutting where the rotating speed of the cutting tool is low, and is the reason why heavy cutting is difficult.

そこで、本発明では、中ぐリバイトの定速回転による切
削に生じていた難点を解消するため、切削中の前記バイ
トの回転状態を被剛材の材質などに応じて増減変更し、
切削時に生じる振動の周波数を変え主として共振現象を
防ぐようにしたのである。以下2この点について説明す
る。
Therefore, in the present invention, in order to solve the difficulties that have arisen in cutting by constant speed rotation of the boring tool, the rotational state of the cutting tool during cutting is increased or decreased depending on the material of the material to be stiffened,
The main aim was to prevent resonance by changing the frequency of the vibrations that occur during cutting. Two points will be explained below.

図において、17はスピンドル2に関連伺°けて設け、
その単位回転角、例えば1度当り10個、或は、■回転
当り1個といった種類のパルス信号を発生する回転パル
ス発生器で、エンコーダ或はそれと同等の機能を持つ器
具を用いる。而して、バイトlはスピンドル2に直結さ
れているので、ここでのスピンドル2の回転検出はバイ
トの回転検出を意味する。
In the figure, 17 is provided in relation to the spindle 2,
A rotary pulse generator that generates pulse signals of the unit rotation angle, for example, 10 pulses per degree or 1 pulse per rotation, and uses an encoder or a device with an equivalent function. Since the cutting tool l is directly connected to the spindle 2, detection of the rotation of the spindle 2 here means detection of rotation of the cutting tool.

18は上記回転パルス発生器17から供給されるパルス
信号を時計パルス発生器19から供給される任意の時間
を表わすパルス信号、例えば1秒当り100個のパルス
に対応させ、回転角(数)7時間または時間/回転角(
数)を表わす信号に形成する現在速度検出部、20は前
記モータ4の回転出力の可変範囲を、スピンドル2の回
転数(rpm)を表わす数値で任意に設定できるように
した設定部で、スピンドル2、即ちバイト1の回転数が
減速機構5の減速比を介したモータ4の回転出力により
予め例えば180rpmに選択されているとき、次のよ
うな設定を行なうことができるようにしである。
18 corresponds the pulse signal supplied from the rotational pulse generator 17 to a pulse signal representing an arbitrary time supplied from the clock pulse generator 19, for example, 100 pulses per second, and the rotation angle (number) 7 Time or time/rotation angle (
20 is a setting section that can arbitrarily set the variable range of the rotational output of the motor 4 with a numerical value representing the rotational speed (rpm) of the spindle 2; 2, that is, when the rotational speed of the cutting tool 1 is previously selected, for example, 180 rpm by the rotational output of the motor 4 via the reduction ratio of the reduction mechanism 5, the following settings can be made.

而して、設定部20では、上記設定回転数におけるスピ
ンドル2の回転モードを、そのスピンドルがその選択さ
れた回転数で回転する場合において、上記選択回転数の
例えば10%前後で任意に増減させることを内容として
任意の回転モードを設定する。
The setting unit 20 then arbitrarily increases or decreases the rotation mode of the spindle 2 at the set rotation speed by, for example, around 10% of the selected rotation speed when the spindle rotates at the selected rotation speed. Set any rotation mode as the content.

例えば1選択回転数が18Orpmのスピンドル2は定
速回転するから、1秒で3回転するという回転モードは
一定であるが、本発明ではこれが任意に増減変更される
回転モードにするため、例えば、1秒で3.3回転させ
たり、1秒で2.7回転させるようにする。
For example, the spindle 2 with one selected rotation speed of 18 Orpm rotates at a constant speed, so the rotation mode of 3 rotations in 1 second is constant, but in the present invention, in order to make this a rotation mode that can be arbitrarily increased or decreased, for example, Make it rotate 3.3 times per second or 2.7 times per second.

このため設定部20では、スピンドル2の3回転を表わ
す10800個のパルスを1.0秒を表わす100個の
時間パルスに対応させた信号のほか、上記3.3回転を
表わす12000個のパルスを1.0秒を表わす100
個の時間パルスに対応させた信号、或は、2.7回転を
表わす9600個のパルスを1秒を表わす100個の時
間パルス信号に対応させた信号を形成すると共に、これ
らの信号が、例えば、適宜設定した時間ごと、或はスピ
ンドル2の任意の回転数ごと、或は、単位切削送りごと
に回転モード信号として出力できるようにしである。
Therefore, in addition to a signal in which 10,800 pulses representing 3 revolutions of the spindle 2 correspond to 100 time pulses representing 1.0 seconds, the setting unit 20 generates a signal of 12,000 pulses representing 3.3 revolutions. 100 representing 1.0 seconds
or 9600 pulses representing 2.7 rotations to 100 time pulses representing 1 second, and these signals are The rotation mode signal can be outputted at every appropriately set time, every arbitrary number of revolutions of the spindle 2, or every unit cutting feed.

このため、設定部20には回転パルス検出器17及び/
又は、時計パルス発生器19、或は、テーブル14の移
動検出器(図示せず)からパルス信号が供給されるよう
にしてあり、設定部20に形成される上記の回転モード
信号は予定回転モードとして予定回転速度記憶部21に
たくわえられる。
Therefore, the setting unit 20 includes the rotation pulse detector 17 and/or
Alternatively, a pulse signal is supplied from the clock pulse generator 19 or a movement detector (not shown) of the table 14, and the above rotation mode signal formed in the setting section 20 is in the scheduled rotation mode. It is stored in the scheduled rotation speed storage section 21 as a scheduled rotation speed.

22は現在回転速度検出部と予定回転速度記憶部21か
ら供給される信号を逐次比較演算し1両者の偏差を計数
する演算部、23は前記演算部22の偏差を制御部24
の補正信号に形成する補正部で、始動時には予定速度記
憶1部10から供給された信号がそのまま制御部24に
供給される。
Reference numeral 22 refers to a calculation unit that performs a successive approximation operation on the signals supplied from the current rotation speed detection unit and the scheduled rotation speed storage unit 21 and counts the deviation between the two, and 23 refers to a control unit 24 that calculates the deviation of the calculation unit 22.
The correction section forms a correction signal for the control section 24, and the signal supplied from the scheduled speed storage section 10 is directly supplied to the control section 24 at the time of starting.

このようにすると、当初バイト1は予め選択されたスピ
ンドル2の回転数で回転し始めるが、スピンドルの回転
開始と同時に回転パルス検出器17から供給される回転
パルス信号が現在回転速度検出部18に送られ、ここで
スピンドル回転当りないしは単位回転数当り、或は、設
定した回転時間当りについての上記パルス信号が計数さ
れると共に時計パルス発生器19がらのパルス信号に対
応させられて前記中ぐリバイト1の現在回転速度が検出
される。この現在回転速度は演算部22において予定回
転モードと比較演算され、その演算結果より偏差信号が
補正部23に供給される。補正部23はそこで形成した
補正信号を制御部24に供給するので、制御部24では
モータ4に対する制御信号が補正され、この結果、モー
タ4は中ぐリバイト1がその設定回転数における予定回
転モードで回転するようにその回転が制御されるのであ
る。
In this way, the cutting tool 1 initially starts to rotate at the preselected rotation speed of the spindle 2, but at the same time as the rotation of the spindle starts, a rotation pulse signal supplied from the rotation pulse detector 17 is sent to the current rotation speed detection section 18. Here, the pulse signal per spindle rotation or unit rotation speed, or per set rotation time is counted and is made to correspond to the pulse signal from the clock pulse generator 19 to perform the re-biting process. The current rotational speed of 1 is detected. This current rotation speed is compared with the scheduled rotation mode in the calculation section 22, and a deviation signal is supplied to the correction section 23 based on the calculation result. Since the correction unit 23 supplies the correction signal formed there to the control unit 24, the control signal for the motor 4 is corrected in the control unit 24, and as a result, the motor 4 is set in the planned rotation mode at the set rotation speed. The rotation is controlled so that it rotates at .

而して、モータ4の回転をスピンドル2についての選択
回転数において適宜増減制御し、中ぐりバイト1にその
1回転ないしは任意回転数当り、或は、設定した回転時
間について任意に設定した不等速回転を与えると、切刃
の被削材に対する相対速度が切削中微細に増減変更され
るから、切削に伴い生じる振動の共振を阻止できること
となる。
Therefore, the rotation of the motor 4 is controlled to increase or decrease as appropriate at the selected rotation speed of the spindle 2, and the rotation of the boring tool 1 is controlled per rotation or arbitrary rotation speed, or at an arbitrary set rotation time. When high-speed rotation is applied, the relative speed of the cutting blade to the workpiece is finely increased or decreased during cutting, so it is possible to prevent resonance of vibrations that occur during cutting.

尚、本発明において、中ぐリバイト1の不等速回転は、
面粗度に悪影響を及ぼすことがないように、一般的には
、被剛材の材質や切込量、或はバイトの材質などに応じ
て予め選択されるバイト1の回転数の±10〜15%前
後の範囲で与えられるが、被剛材の材質など、切削条件
によっては上記範囲を上記実施例の範囲より大きくした
り、或は逆に小さくしてもよい。
In addition, in the present invention, the inconstant speed rotation of the center re-bite 1 is as follows:
In order to avoid adverse effects on the surface roughness, the rotational speed of the cutting tool 1 is generally selected in advance by ±10 to 1000 depending on the material of the workpiece, the depth of cut, or the material of the cutting tool. Although it is given in a range of around 15%, depending on the cutting conditions such as the material of the material to be stiffened, the above range may be made larger than the range of the above embodiment, or conversely may be made smaller.

また、速度の増減周期など、バイトの回転速度変更のタ
イミングも、被剛材の材質や切削条件に応じて設定部に
予め任意に設定することができることは勿論、加工中で
あっても、そのタイミング或は速度変更幅を任意に変更
或は新たに設定することが可能である。更に、速度の増
減タイミングの設定は非周期的であることが好ましい。
In addition, the timing of changing the rotational speed of the cutting tool, such as the speed increase/decrease cycle, can of course be set arbitrarily in the setting section according to the material of the workpiece and cutting conditions, and even during machining. It is possible to arbitrarily change or newly set the timing or speed change range. Further, it is preferable that the speed increase/decrease timing is set aperiodically.

上述のように、本発明は切削中の中ぐリバイトに不等速
回転を与えるから、従来の定速回転のバイトによる中ぐ
り切削における切削抵抗の周期的変動によって生じてい
る強制振動、或は、この強制振動により励起される自励
振動を軽減ないしはそのような振動を起させない切削を
実現し、また、上記振動による騒音を軽減ないしは発生
させない切削を可能とし、更には、従来は不可能であっ
た重切削を実施できるなどの作用効果がある。
As mentioned above, since the present invention imparts non-uniform rotation to the boring tool during cutting, the forced vibration caused by periodic fluctuations in cutting resistance in boring cutting using a conventional constant speed rotating tool, or , it is possible to realize cutting that reduces self-excited vibration excited by this forced vibration or does not cause such vibration, and also enables cutting that reduces or does not generate noise due to the vibration, and furthermore, it is possible to realize cutting that reduces or does not generate noise due to the vibration, and furthermore, it is possible to realize cutting that reduces or does not generate self-excited vibration excited by this forced vibration. There are effects such as being able to carry out heavy cutting.

尚、本発明の実施に当っては、中ぐリバイト1の不等速
回転時、被剛材の切削送り速度を変更してやり、バイト
1における各月の被削材に対する相対速度を不等速にな
るようにしてもよい。
In carrying out the present invention, the cutting feed rate of the rigid material is changed when the boring tool 1 rotates at an inconstant speed, and the relative speed of the tool 1 to the workpiece in each month is made inconstant. You may do so.

また、上記実施例では、中ぐリバイ1〜1の回転速度の
制御系をクローズトループ方式で構成したが、本発明方
法はオープンループ方式の制御系により構成することも
できること勿論である。更に。
Further, in the above embodiment, the control system for the rotational speed of the boring rebuys 1 to 1 is configured using a closed loop system, but it goes without saying that the method of the present invention can also be configured using an open loop system. Furthermore.

本発明方法が適用できる中ぐり盤は、その機械型式、制
御方式などを問わず、いずれのものにも適用可能である
The method of the present invention can be applied to any boring machine, regardless of its mechanical type, control system, etc.

本発明は以上の通りであるから、中ぐり盤の切削制御方
法として極めて有用である。
As described above, the present invention is extremely useful as a cutting control method for a boring machine.

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

図は本発明方法の実施の一例を表わした制御ブロック図
である。 ■・・中ぐリバイト、2・・・スピンドル、3・・・ク
イル、4・モータ、5・・・伝動機構、6・・・コラム
、7・摺動案内部、8−・・・主軸送りネジ、9・・主
軸モータ、10・・・ベッド、11・・・サドル、12
・サドル送りネジ、13・・サドル送りモータ、14・
・・テーブル、15・・テーブル送りモータ、16・・
・ターンテーブル、17・・回転パルス検出器、18・
・・現在速度検出部、19・・・時計パルス発生器、2
0・・・設定部、21・・・予定速度記憶部、22・・
・演算部、23・・補正部、24・・・制御部代理人 
小泉良邦
The figure is a control block diagram showing an example of implementing the method of the present invention. ■...Medium rivet, 2...Spindle, 3...Quill, 4-Motor, 5...Transmission mechanism, 6...Column, 7-Sliding guide section, 8-...Spindle feed Screw, 9... Main shaft motor, 10... Bed, 11... Saddle, 12
・Saddle feed screw, 13・・Saddle feed motor, 14・
...Table, 15...Table feed motor, 16...
・Turntable, 17・・Rotation pulse detector, 18・
...Current speed detection unit, 19...Clock pulse generator, 2
0... Setting section, 21... Scheduled speed storage section, 22...
- Arithmetic unit, 23... Correction unit, 24... Control unit agent
Yoshikuni Koizumi

Claims (1)

【特許請求の範囲】[Claims] 中ぐり盤における中ぐリバイトの回転速度を、該バイト
のスピンドルに設けた回転パルス検出器から供給さ゛れ
る回転角パルス信号を適宜の時間パルスに対応させて回
転角/時間、又は2時間/回転角で表わされるパルス信
号による現在回転速度信号で検出するようにしておく一
方、前記バイトの回転駆動源を、そのバイトについて選
択された回転速度の増減を含み任意に設定する回転角/
時間、又は、時間/回転角を表わすパルス信号による予
定回転速度信号によって駆動し、前記バイトの回転時、
現在回転速度信号と予定速度信号とを比較演算し、この
演算結果によって上記駆動源を制御することにより、中
ぐリパイトの回転速度を切削加工中に適宜の範囲で増減
させることを特徴とする中ぐり盤の1切削制御方法。
The rotational speed of the boring rebit on the boring machine is determined by the rotation angle/hour or 2 hours/rotation by correlating the rotation angle pulse signal supplied from the rotation pulse detector installed in the spindle of the boring machine with an appropriate time pulse. While the current rotational speed signal is detected by a pulse signal expressed in angles, the rotational drive source of the cutting tool is set to any rotational angle /
When the cutting tool is rotated, it is driven by a scheduled rotation speed signal based on a pulse signal representing time or time/rotation angle;
The current rotational speed signal and the scheduled speed signal are compared and calculated, and the driving source is controlled based on the calculation result, thereby increasing or decreasing the rotational speed of the boring repite within an appropriate range during cutting. 1. Cutting control method for drilling machine.
JP23496083A 1983-12-15 1983-12-15 Control method of cutting in boring machine Pending JPS60127907A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP23496083A JPS60127907A (en) 1983-12-15 1983-12-15 Control method of cutting in boring machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP23496083A JPS60127907A (en) 1983-12-15 1983-12-15 Control method of cutting in boring machine

Publications (1)

Publication Number Publication Date
JPS60127907A true JPS60127907A (en) 1985-07-08

Family

ID=16978948

Family Applications (1)

Application Number Title Priority Date Filing Date
JP23496083A Pending JPS60127907A (en) 1983-12-15 1983-12-15 Control method of cutting in boring machine

Country Status (1)

Country Link
JP (1) JPS60127907A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0453649A (en) * 1990-06-18 1992-02-21 Okuma Mach Works Ltd Irregular revolution speed cutting method
US5788432A (en) * 1993-12-27 1998-08-04 Seiko Seiki Kabushiki Kaisha Method and apparatus for computing allowable spindle rotation speed

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0453649A (en) * 1990-06-18 1992-02-21 Okuma Mach Works Ltd Irregular revolution speed cutting method
US5788432A (en) * 1993-12-27 1998-08-04 Seiko Seiki Kabushiki Kaisha Method and apparatus for computing allowable spindle rotation speed

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