JPS58114204A - Automatic tool length setting system in numerical control working machine - Google Patents

Automatic tool length setting system in numerical control working machine

Info

Publication number
JPS58114204A
JPS58114204A JP21135081A JP21135081A JPS58114204A JP S58114204 A JPS58114204 A JP S58114204A JP 21135081 A JP21135081 A JP 21135081A JP 21135081 A JP21135081 A JP 21135081A JP S58114204 A JPS58114204 A JP S58114204A
Authority
JP
Japan
Prior art keywords
tool
length
tool length
automatically
numerical control
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
JP21135081A
Other languages
Japanese (ja)
Inventor
Yutaka Shimizu
裕 清水
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP21135081A priority Critical patent/JPS58114204A/en
Publication of JPS58114204A publication Critical patent/JPS58114204A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B19/00—Programme-control systems
    • G05B19/02—Programme-control systems electric
    • G05B19/18—Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form
    • G05B19/401—Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form characterised by control arrangements for measuring, e.g. calibration and initialisation, measuring workpiece for machining purposes
    • G05B19/4015—Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form characterised by control arrangements for measuring, e.g. calibration and initialisation, measuring workpiece for machining purposes going to a reference at the beginning of machine cycle, e.g. for calibration
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B2219/00—Program-control systems
    • G05B2219/30—Nc systems
    • G05B2219/50—Machine tool, machine tool null till machine tool work handling
    • G05B2219/50139—Calibration, setting tool after measurement on tool

Landscapes

  • Engineering & Computer Science (AREA)
  • Human Computer Interaction (AREA)
  • Manufacturing & Machinery (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • Numerical Control (AREA)

Abstract

PURPOSE:To make calculation of length of a tool unnecessary, and to easily set length of the tool, by automatically controlling a speed of a fitted tool, comparing a position of the tool which has been made to press-contact with the reference surface, with a machine original point, and automatically setting the length of the tool. CONSTITUTION:In a state that a tool has been fitted, the tool 16 is moved in the lower direction in the figure by operating a Z shaft driving motor 12 and driving a main shaft 14. The tool 16 is made to press-contact with a contact part 34a of a moving piece 34, and when the tool 16 further descends, the moving piece 34 also moves in the direction as indicated with an arrow A, contacts with a deceleration sensor 36, a signal is sent to a CPU22, and the tool 16 is decelerated and is made to descend. It further descends, contacts with a stop sensor 38, is stopped by sending a stop signal to the CPU22, and simultaneously, the CPU22 sets tool length l3 automatically, displays it on a monitor 28 and is stored 30. In this way, trouble for calculation of tool length is not required and the tool length l3 can be set easily.

Description

【発明の詳細な説明】 本発明は数値制御加工機械（以下ＮＣ加工機械という）
における工具長自動設定方式に関するものである。[Detailed description of the invention] The present invention is a numerically controlled processing machine (hereinafter referred to as an NC processing machine).
The present invention relates to an automatic tool length setting method.

ＮＣ加工機械は、被加工物に対する工具の位置をそれに
対応する数値情報で指令制御し、被加工物の加工を行な
うものであＪ）、ＮＣ加工機械にょれば、複雑な形状の
ものを容易かつ高精度に加工することができ、さらに生
産性を向上させることができる。そして、ＮＣ加工機械
においては、加工に先立ってあらかじめ工具の長さを測
定し、工具長を数値制御装置にインプットして工具長を
設定する必要がある。NC processing machines control the position of the tool relative to the workpiece using the corresponding numerical information to process the workpiece (J). NC processing machines can easily process objects with complex shapes. Moreover, it can be processed with high precision, and productivity can be further improved. In the case of an NC machining machine, it is necessary to measure the length of a tool in advance prior to machining, input the tool length into a numerical control device, and set the tool length.

第１図には、ＮＣ加工機械における従来の工具長設定方
式が適用されたボール盤が示されている。FIG. 1 shows a drilling machine to which a conventional tool length setting method for NC machining machines is applied.

第１図において、テーブルｌＯと対峙して、Ｚ軸駆動モ
ータ１２によシｚ軸方向（上下方向）に移動可能表土軸
１４が設けられておシ、テープをｌＯには被加工物（図
示せず）が取シ付けられ、また、主軸１４には被加工物
を加工する工具としてドリル１６が取シ付けられている
。そして、前述のように、ＮＣ加工を行なうために、工
具長を数値制御装置にインプットして工具長を設定する
必要がある。このため、従来、主軸１４の機械原点から
テーブルｌＯの基準面までの基準長ｔ１と主軸１４の移
動長４との差から工具長ｔ、を求め、工具長を設定して
ηた。すなわち、基準長１ｍを予め測定し、その後、２
軸駆動モータ１２を駆動して、図の鎖線で示されるよう
に主軸１４に取シ付けられたドリル１６を基準面に当接
させ、このときの機械原点からの移動長４を数値制御装
置のカウンタ２０によシ求める。この２軸駆動モータ１
２による移動長４の検出は、例えばパルスジェネレータ
１８等にて行なうことが好適である。そして、操作者は
、前記基準長４及び移動長４からｔ、−４を計算して工
具長４を求め、工具長を数値制御装置にインプットして
工具長を設定していた。In FIG. 1, a topsoil shaft 14 that is movable in the Z-axis direction (vertical direction) by a Z-axis drive motor 12 is provided facing the table 10. ) is attached to the spindle 14, and a drill 16 is attached to the main shaft 14 as a tool for machining the workpiece. As described above, in order to perform NC machining, it is necessary to input the tool length into a numerical control device to set the tool length. For this reason, conventionally, the tool length t is determined from the difference between the reference length t1 from the machine origin of the spindle 14 to the reference surface of the table IO and the movement length 4 of the spindle 14, and the tool length is set and η is calculated. In other words, a standard length of 1 m is measured in advance, and then 2 m is measured.
The shaft drive motor 12 is driven to bring the drill 16 attached to the main shaft 14 into contact with the reference surface as shown by the chain line in the figure, and the travel length 4 from the machine origin at this time is determined by the numerical control device. The value is obtained from the counter 20. This two-axis drive motor 1
It is preferable that the detection of the movement length 4 by 2 is performed by, for example, the pulse generator 18 or the like. Then, the operator calculates t, -4 from the reference length 4 and the movement length 4 to obtain the tool length 4, and inputs the tool length into the numerical control device to set the tool length.

以上のように、ＮＣ加工機械における従来の工具長設定
方式においては、操作者が工具長を設定しなければなら
ないという問題があった。すなわち、操作者は、基準長
ｔ１及び移動長４を読み取シ、１ｍ−１，を計算して工
具長ｔ、を求め、工具長を設定するので、工具長の設定
が煩雑であるという欠点があった。As described above, the conventional tool length setting method for NC processing machines has the problem that the operator must set the tool length. That is, the operator reads the reference length t1 and the moving length 4, calculates 1m-1, determines the tool length t, and sets the tool length, so there is a drawback that setting the tool length is complicated. there were.

本発明は前記従来の諌題に鑑み為されたものであシ、そ
の目的は、工具長を自動的に設定することができるＮＣ
加工機械における工具長自動設定方式を提供することに
ある。The present invention has been made in view of the above-mentioned conventional problems, and its purpose is to provide an NC tool that can automatically set the tool length.
The object of the present invention is to provide an automatic tool length setting method for processing machines.

前記目的を達成するために、本発明は、工具取付状態に
お込て工具を自動的に速度制御することにより基準面に
当接させ、このときの工具位置を自動的に機械原点と比
較して工具長を自動的に設定することを特徴とする。In order to achieve the above object, the present invention automatically controls the speed of the tool to bring it into contact with a reference surface when the tool is in a mounted state, and automatically compares the tool position at this time with the machine origin. It is characterized by automatically setting the tool length.

以下、図面に基づ込て本発明の好適な実施例を説明する
。Hereinafter, preferred embodiments of the present invention will be described based on the drawings.

第２図には、ＮＣ加工機械における本発明の工具長自動
設定方式が適用されたボール盤が示されておシ、第２図
において、第１図と同一部材には同一符号を付して説明
を省略する。FIG. 2 shows a drilling machine to which the automatic tool length setting method of the present invention is applied in an NC processing machine. In FIG. 2, the same members as those in FIG. omitted.

第２図において、数値制御装置２２はパルスジェネレー
タ１８による位置のフィードバックから主軸１４の移動
長４の移動長を計算することができる。また、操作ボー
ド２４にはモニタ２８が設けられておシ、モニタ２８に
ょシ所定の表示がなされ、さらに、数値制御装置２２に
は記憶装置１３０が内蔵されている。In FIG. 2, the numerical control device 22 is able to calculate the travel length 4 of the main shaft 14 from the feedback of the position by the pulse generator 18. Further, the operation board 24 is provided with a monitor 28 on which a predetermined display is displayed, and furthermore, the numerical control device 22 has a built-in storage device 130.

さらに、実施例においては、ドリル１６の先端位置を検
知するためのセンサ３２が基準面に設けられている。該
センサ３２は、ドリル１６との当接により矢印入方向に
移動可能な移動子３４と、移動子３４と接触する減速セ
ンサ３６及び停止セ／す３８を含む。そして、移動子３
４が減速セ／す３６に接触すると、減速センサ３６はド
リル１６の移動速度を遅くシ、また、移動子３４が停止
センサ３８に接触すると、停止センサ３８はドリル１６
の移動を停止し、工具長を自動的に設定する。Furthermore, in the embodiment, a sensor 32 for detecting the position of the tip of the drill 16 is provided on the reference surface. The sensor 32 includes a movable element 34 movable in the direction of the arrow by contact with the drill 16, and a deceleration sensor 36 and a stop station 38 that come into contact with the movable element 34. And mover 3
When the mover 4 contacts the deceleration set 36, the deceleration sensor 36 slows down the moving speed of the drill 16, and when the mover 34 contacts the stop sensor 38, the stop sensor 38 slows down the moving speed of the drill 16.
stops moving and automatically sets the tool length.

本発明の実施例は以上の構成から成シ、以下その作用を
第２．３図に基づいて説明する。The embodiment of the present invention has the above configuration, and its operation will be explained below based on FIG. 2.3.

第２図において、工具長を設定する場合、工具を取シ付
けた状態でＺ軸駆動モータ１２を操作して主軸１４を駆
動し、主軸１４に取シ付けられてｂるドリル１６を図の
下方向に移動させる。実施例においては、このドリル１
６の移動時に、ドリル１６が自動的に速度制御されてい
る。すなわち、ドリル１６が図の下方向に移動するとド
リル１６は移動子３４の接触部３４Ｍに当接し、ドリル
１６がさらに下方向に移動すると、移動子３４も矢印Ａ
方向に移動する。このため、移動子３４が減速センサ３
６に接触し、減速センサ３６は数値制御装置２２に信号
を与え、ドリル１６の移動速度を遅くする。そして、ド
リル１６がさらに下方向に移動し、ドリル１６が基準面
に当接すると、第３図に示されるように、移動子３４は
停止センサ３８に接触する。このため、停止センナ３８
は数値制御装置２２に信号を与え、ドリル１６の移動を
停止する。したがって、減速センサ３６及び停止センサ
３８によジトリル１６を自動的に速度制御するので、操
作者が制御する煩雑さがなく、さらに、ドリル１６、基
準面の破損を防止することができる。In FIG. 2, when setting the tool length, operate the Z-axis drive motor 12 to drive the spindle 14 with the tool attached to the spindle, and move the drill 16 attached to the spindle 14 as shown in the figure. Move it downward. In the example, this drill 1
When moving the drill 16, the speed of the drill 16 is automatically controlled. That is, when the drill 16 moves downward in the drawing, the drill 16 comes into contact with the contact portion 34M of the mover 34, and when the drill 16 moves further downward, the mover 34 also moves in the direction of the arrow A.
move in the direction. For this reason, the mover 34 is connected to the deceleration sensor 3
6, the deceleration sensor 36 provides a signal to the numerical control device 22 to slow down the movement speed of the drill 16. Then, when the drill 16 moves further downward and comes into contact with the reference surface, the mover 34 contacts the stop sensor 38, as shown in FIG. For this reason, the stop sensor 38
gives a signal to the numerical control device 22 to stop the movement of the drill 16. Therefore, since the speed of the drill drill 16 is automatically controlled by the deceleration sensor 36 and the stop sensor 38, there is no need for the operator to perform complicated control, and furthermore, damage to the drill 16 and the reference surface can be prevented.

前述したドリル１６の停止作用と同時に、停止センサ３
８の出力信号により、数値制御装置２２は、工具長を自
動的に設定して工具長を記憶装置３０に記憶させ、また
、工具長をモニタ２８に表示する。すなわち、停止セン
ナ３８からの出力信号によシ、数値制御装置２２には、
パルスジエネータ１８による位置のフィードバックよル
機械原点からの移動長４の移動長を計算することができ
る。数値制御装置２２は、前記移動長４及び予め測定さ
れている基準長４からｊｓ　　ｋを計算して工具長ｔ、
を求め、工具長を自動的に設定することができる。さら
に、数値制御装置２２は、工具長ｔ１をモニタ２８上Ｋ
Ｎ示し、記憶装置３０に工具長ｔ、を記憶させ、必要な
ときに記憶装置３０から工具長ｔ、を呼び出すこととな
る。Simultaneously with the above-described stopping action of the drill 16, the stop sensor 3
8, the numerical control device 22 automatically sets the tool length, stores the tool length in the storage device 30, and displays the tool length on the monitor 28. That is, depending on the output signal from the stop sensor 38, the numerical control device 22
Due to the feedback of the position by the pulse generator 18, the travel length of the travel length 4 from the machine origin can be calculated. The numerical control device 22 calculates js k from the moving length 4 and the reference length 4 measured in advance, and calculates the tool length t,
can be calculated and the tool length can be automatically set. Furthermore, the numerical control device 22 monitors the tool length t1 on the monitor 28.
N, the tool length t is stored in the storage device 30, and the tool length t is called from the storage device 30 when necessary.

以上のように、本発明によれば、工具を自動的に速度制
御することにより基準面に当接させ、工具長を自動的に
設定することができる。As described above, according to the present invention, by automatically controlling the speed of the tool, it is possible to bring the tool into contact with the reference surface and automatically set the tool length.

なお、実施例においては、２軸方向−に移動する工具の
工具長を自動的に設定したが、他の軸方向、例えばＹ軸
方向、Ｚ軸方向に移動する工具の工具長を自動的に設定
することもできる。In the example, the tool length of the tool that moves in the two-axis direction is automatically set, but the tool length of the tool that moves in the other axis directions, for example, the Y-axis direction and the Z-axis direction, can be automatically set. It can also be set.

また、実施例においては、本発明がボール盤に適用され
てｈるが、他の加工機械、例えばフライス盤、旋盤にも
適用が可能である。Furthermore, in the embodiments, the present invention is applied to a drilling machine, but it can also be applied to other processing machines, such as milling machines and lathes.

以上説明したように、本発明によれば、工具長を自動的
に設定することができる。したがって、操作者は工具長
を設定する必要がなく、工具長の設定が容易となる。さ
らに１工具を自動的に速度制御して基準面に当接さｉる
ので、操作者が制御するという煩雑さがなく、また、工
具、基準面の破損を防止できる。As explained above, according to the present invention, the tool length can be automatically set. Therefore, the operator does not need to set the tool length, making it easy to set the tool length. Furthermore, since the speed of one tool is automatically controlled so that it comes into contact with the reference surface, there is no need for an operator to control the tool, and damage to the tool and the reference surface can be prevented.

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

第１図はＮＣ加工機械における従来の工具長設定方式が
適用されたボール盤の説明図、第２図はＮＣ加工機械に
おける本発明の工具長自動設定方式が適用されたボール
盤の説明図、第３図は第２図の作用説明図でおる。 各図中同一部材には同一符号を付し、１２ＦｉＺ軸駆動
モータ、１４は主軸、１６はドリル、五８はパルスジェ
ネレータ、２２は数値制御装置、３２はセンサ、３４は
移動子、３６は減速センサ、３８は停止センサである。 代理人　、弁理士　　葛　　野　　信　　−（ほか１名
） 第１図 第２圓Fig. 1 is an explanatory diagram of a drilling machine to which the conventional tool length setting method for NC processing machines is applied; Fig. 2 is an explanatory diagram of a drilling machine to which the automatic tool length setting method of the present invention is applied to NC processing machines; The figure is an explanatory diagram of the action of FIG. 2. In each figure, the same members are given the same symbols, 12 FiZ axis drive motor, 14 the main shaft, 16 the drill, 58 the pulse generator, 22 the numerical controller, 32 the sensor, 34 the slider, and 36 the deceleration. Sensor 38 is a stop sensor. Agent, patent attorney Shin Kuzuno - (1 other person) Figure 1, Figure 2

Claims (2)

【特許請求の範囲】[Claims] （１）　　工具取付状態に＄−いて工具を自動的に速度
制御するととＫより基準面に当接させ、このときの工具
位置を自動的に機械原点と比較して工具長を自動的に設
定することを特徴とする数値制御加工機械における工具
長自動設定方式。(1) When the speed of the tool is automatically controlled while the tool is in the installed state, the tool is brought into contact with the reference surface from K, and the tool position at this time is automatically compared with the machine origin and the tool length is automatically set. An automatic tool length setting method for numerically controlled processing machines. （２）　　特許請求の範囲（１）記載の方式において、
工具の移動速度を徐々に遅くするととを％黴とする数値
制御加工機械における工具長自動設定方式。(2) In the method described in claim (1),
An automatic tool length setting method for numerically controlled processing machines that gradually reduces the tool's moving speed.
JP21135081A 1981-12-28 1981-12-28 Automatic tool length setting system in numerical control working machine Pending JPS58114204A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP21135081A JPS58114204A (en) 1981-12-28 1981-12-28 Automatic tool length setting system in numerical control working machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP21135081A JPS58114204A (en) 1981-12-28 1981-12-28 Automatic tool length setting system in numerical control working machine

Publications (1)

Publication Number Publication Date
JPS58114204A true JPS58114204A (en) 1983-07-07

Family

ID=16604509

Family Applications (1)

Application Number Title Priority Date Filing Date
JP21135081A Pending JPS58114204A (en) 1981-12-28 1981-12-28 Automatic tool length setting system in numerical control working machine

Country Status (1)

Country Link
JP (1) JPS58114204A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61110206A (en) * 1984-11-05 1986-05-28 Hitachi Seiki Co Ltd Coordinate system setting device of machine tool
JPS63122806U (en) * 1987-01-30 1988-08-10
NL2000962C2 (en) * 2007-09-17 2009-03-18 Johannes Wilhelmus Maria Konings Automatic component part e.g. slide, adjusting method for robot applications, involves displacing component part while another component part is halted by fixed point and guideway present on former component part is displaced

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61110206A (en) * 1984-11-05 1986-05-28 Hitachi Seiki Co Ltd Coordinate system setting device of machine tool
JPH0554125B2 (en) * 1984-11-05 1993-08-11 Hitachi Seiki Kk
JPS63122806U (en) * 1987-01-30 1988-08-10
NL2000962C2 (en) * 2007-09-17 2009-03-18 Johannes Wilhelmus Maria Konings Automatic component part e.g. slide, adjusting method for robot applications, involves displacing component part while another component part is halted by fixed point and guideway present on former component part is displaced

Similar Documents

Publication Publication Date Title
US6212444B1 (en) Method of avoiding interference of industrial robot
JPH09120310A (en) Method and system for moving axis
EP0083836A3 (en) Method and apparatus for displaying movement in numerically controlled machines
US3671840A (en) Method and apparatus for adaptive control of a turning machine
US5200678A (en) Motor driving control apparatus
JPH08263113A (en) Abnormality processing control unit
JPS58114204A (en) Automatic tool length setting system in numerical control working machine
US20190196455A1 (en) Numerical controller
JP4451708B2 (en) Misworking prevention device and misworking prevention method
JPH08108300A (en) Action control device of punch press
JP7376329B2 (en) Electric motor control device and electric motor control method
JPH0854915A (en) Machining load monitor system
JP2880211B2 (en) Tool load monitoring control method
JP2581725B2 (en) Three-dimensional shape processing laser device
JPS58114205A (en) Automatic tool length setting system in numerical control working machine
US3526903A (en) Adaptive servo control system for machine tools
JPH0976144A (en) Machining state monitoring method in machine tool
JPH0716850B2 (en) Axis switching device
JPH0751992A (en) Drilling work method
JPH0360620B2 (en)
JPH11123637A (en) Measuring method for tool size of nc system
JP2712881B2 (en) Numerical control unit
JPS60120404A (en) Origin returning device
JPH08150540A (en) Interference preventing device for machine tool
JPH117313A (en) Numerical controller