JPS58114205A - 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
JPS58114205A
JPS58114205A JP21136181A JP21136181A JPS58114205A JP S58114205 A JPS58114205 A JP S58114205A JP 21136181 A JP21136181 A JP 21136181A JP 21136181 A JP21136181 A JP 21136181A JP S58114205 A JPS58114205 A JP S58114205A
Authority
JP
Japan
Prior art keywords
tool
length
tool length
numerical control
length setting
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
JP21136181A
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 JP21136181A priority Critical patent/JPS58114205A/en
Publication of JPS58114205A publication Critical patent/JPS58114205A/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 omit calculation, and to easily set length of a tool, by making a fitted tool press-contact with the reference surface manually, operating a tool length setting switch, comparing a position of the tool in that case with a machine original point, and setting the tool length automatically. CONSTITUTION:In a state that a tool has been fitted, a main shaft 14 is driven by manually operating a Z shaft driving motor 12, a drill 16 is made to press- contact with a reference surface 10 as shown by a chain line, and a tool length setting switch 26 is depressed. A numerical controller 22 is capable of calculating moving length l2 from a machine original point from feedback of a position by a pulse generator 18, and is capable of automatically setting tool length l3 by subtracting l2 from reference length l1 set in advance. The tool length l3 is displayed on a monitor 28, is stored 30, and is called out when necessary. In this way, trouble for calculating the tool length is omitted, and the tool length 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）
Ｋ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).
This relates to an automatic tool length setting method in K.

ＮＣ加工機械は、被加工物に対す）ゐ工具の位置をそれ
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ｆｉ、ＮＣ加工機械によれば、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 with respect to the workpiece using the corresponding numerical information, and process the workpiece. can be processed easily and 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、２軸駆動モ
ータ１２によＩｚ軸方向（上下方向）に移動可能な主軸
１４が設けられておシ、テーブル１０には被加工物（図
示せず）がＭＲ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４と主軸１４の移
動長４との差から工具長４を求め、工具長を設定してい
た。すなわち、基準長ｔ１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を基準面に一当接
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。仁のＺ軸駆動モータ１
２による移動長ｔ８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Ａｔ　　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 main shaft 14 is provided facing the table IO and is movable in the Iz-axis direction (vertical direction) by a two-axis drive motor 12. ) is attached to the spindle 14, and a drill 16 is attached to the main shaft 14 as a tool for machining the workpiece. And, as mentioned above, in order to perform NC processing,
It is necessary to input the tool length into the numerical control device to set the tool length. For this reason, conventionally, the tool length 4 was determined from the difference between the reference length 4 from the machine origin of the spindle 14 to the reference surface of the table 10 and the movement length 4 of the spindle 14, and the tool length was set. That is, the reference length t1 is measured in advance, and then the two-axis 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. The travel length 4 from the machine origin at this time is determined by the counter 20 of the numerical control device. Jin's Z-axis drive motor 1
It is preferable that the detection of the movement length t8 by 2 is performed by, for example, the pulse generator 18 or the like. Then, the operator calculates At 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
４及び移動長４を読み取シ、Ａｓ　　４を計算して工具
長ｔ１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 4 and the moving length 4, calculates As4, obtains the tool length t1, and sets the tool length, which has the disadvantage that setting the tool length is complicated.

本発明は前記従来の課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
おいて工具を手動操作によシ基準面に当接させ、該当接
状態において工具長設定スイッチを操作し、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 brings the tool into contact with the reference surface by manual operation in the tool mounted state, operates the tool length setting switch in the relevant contact state, and automatically changes the tool position at this time. The feature is that the tool length is automatically set by comparing it with the machine origin.

以下、図面に基づい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
にお込て、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 machining machine. The explanation will be 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による位置ループから主軸１４の移動長４の移動
長を計算することができ、該数値制御装置２２ｔｉ、操
作ボード２４の工具長設定スイッチ２６によシ作動する
。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によシ所定の表示がなされ、さらに１数
値制御装置２２には記憶装置３０が自薦されている。In FIG. 2, the numerical control device 22 can calculate the movement length 4 of the main spindle 14 from the position loop by the pulse generator 18, and the numerical control device 22ti can calculate the movement length 4 of the main spindle 14 from the position loop by the pulse generator 18. It works. Further, the operation board 24 is provided with a monitor 28 on which a predetermined display is displayed, and furthermore, a storage device 30 is installed in the numerical control device 22.

そして、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を手動操作して主軸１４を態動し
、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を基準面に尚接させる。この当接状態におり
て、工具長設定スイッチ２６を操作するとモニタ２８上
にその旨の表示３２がなされ、数値制御装置２２にはパ
ルスジェネレータ１８による位置のフィードバックから
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ｔ、からＬ＊　　４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Ｋ、数値制御装置２２は、工具長ｔ、をモニタ２８上
に表示し、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。When setting the tool length, with the tool attached, manually operate the Z-axis drive motor 12 to move the spindle 14, and set the tool to the spindle 14 as shown by the chain line in the figure. The drill 16 is still in contact with the reference surface. In this contact state, when the tool length setting switch 26 is operated, a display 32 to that effect is displayed on the monitor 28, and the numerical control device 22 shows the movement length 4 from the machine origin based on the position feedback from the pulse generator 18. The travel length can be calculated. The numerical control device 22 calculates L*4 from the moving length 4 and the reference length t measured in advance, and determines the tool length t.
, and the tool length can be automatically set. Further, the numerical control device 22 displays the tool length t on the monitor 28, stores the tool length t in the storage device 30, and calls the tool length t from the storage device 30 when necessary. .

以上のように、本発明によれば、工具長設定スイッチを
操作することにより、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, the tool length can be automatically set by operating the tool length setting switch.

なお、実施例においては、Ｚ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 Z-axis direction is automatically set, but the tool length of the tool that moves in other axial directions, such as the Y-axis direction and the Z-axis direction, can also be automatically set. You can also.

また、実施例においては、本発明がボール盤に適用され
ているが、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、操作者が工具長
を計算して設定する必要がなく、を 工具長の設定が容易となる。As explained above, according to the present invention, the tool length can be automatically set. Therefore, the operator does not need to calculate and set the tool length, and the tool length can be easily set.

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

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
盤の説明図である。 各図中同一部材には同一符号を付し、１２は２軸駆動モ
ータ、１４は主軸、１６はドリル、１８はパルスジェネ
レータ、２２は数値制御装置、２６は工具長設定スイッ
チである。 代理人　弁理士　　葛　　野　　信　　−（ほか１名） 第１図 第２図FIG. 1 is an explanatory diagram of a drilling machine to which a conventional tool length setting method for an NC processing machine is applied, and 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 an NC processing machine. In each figure, the same members are given the same reference numerals, and 12 is a two-axis drive motor, 14 is a main shaft, 16 is a drill, 18 is a pulse generator, 22 is a numerical control device, and 26 is a tool length setting switch. Agent Patent attorney Shin Kuzuno - (1 other person) Figure 1 Figure 2

Claims (1)

【特許請求の範囲】[Claims] （１）　　工具取付状態において工具を手動操作によシ
基準面に当接させ、該当接状態において工具長設定スイ
ッチを操作し、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) Manually bring the tool into contact with the reference surface in the tool mounted state, operate the tool length setting switch in the corresponding state, and automatically compare the tool position with the machine origin to determine the tool length. An automatic tool length setting method for numerically controlled processing machines, which is characterized by automatically setting the tool length.
JP21136181A 1981-12-28 1981-12-28 Automatic tool length setting system in numerical control working machine Pending JPS58114205A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP21136181A JPS58114205A (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
JP21136181A JPS58114205A (en) 1981-12-28 1981-12-28 Automatic tool length setting system in numerical control working machine

Publications (1)

Publication Number Publication Date
JPS58114205A true JPS58114205A (en) 1983-07-07

Family

ID=16604691

Family Applications (1)

Application Number Title Priority Date Filing Date
JP21136181A Pending JPS58114205A (en) 1981-12-28 1981-12-28 Automatic tool length setting system in numerical control working machine

Country Status (1)

Country Link
JP (1) JPS58114205A (en)

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