JPS6363593A - Laser beam control device - Google Patents

Laser beam control device

Info

Publication number
JPS6363593A
JPS6363593A JP61206157A JP20615786A JPS6363593A JP S6363593 A JPS6363593 A JP S6363593A JP 61206157 A JP61206157 A JP 61206157A JP 20615786 A JP20615786 A JP 20615786A JP S6363593 A JPS6363593 A JP S6363593A
Authority
JP
Japan
Prior art keywords
working
control device
laser
processing
corner
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
JP61206157A
Other languages
Japanese (ja)
Other versions
JPH046475B2 (en
Inventor
Masayuki Sugawara
雅之 菅原
Shuji Ogawa
小川　周治
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 JP61206157A priority Critical patent/JPS6363593A/en
Publication of JPS6363593A publication Critical patent/JPS6363593A/en
Publication of JPH046475B2 publication Critical patent/JPH046475B2/ja
Granted 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
    • G05B19/416—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 of velocity, acceleration or deceleration
    • G05B19/4163—Adaptive control of feed or cutting velocity
    • 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
    • G05B2219/42—Servomotor, servo controller kind till VSS
    • G05B2219/42251—Control position of beam in coordination with xy slide
    • 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
    • G05B2219/45165—Laser machining
    • 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
    • G05B2219/49—Nc machine tool, till multiple
    • G05B2219/49163—Stop, dwell in corner edge, allow for cooling, go on machining, better surface

Landscapes

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

Abstract

PURPOSE:To prevent the overheat of a corner part and to improve the working accuracy by automatically changing over the working conditions within the prescribed range of the corner in a working shape in the case of working a work with its automatic induction in an XY direction by a NC device for the laser light. CONSTITUTION:A work 7 is subjected to a laser beam machining in the prescribed shape with the automatic induction of a work table 6 in an XY direction by a numerical control device (NC) 10 for the laser light 2 condensing by a work head 4 the laser light 2 emitted from a laser oscillator 1. In case of the laser light 2 reaching a fixed distance Cin for the corner part whose working shape is less than a fixed angle theta, the corner part is passed by reducing the working conditions and at the time when separating from a fixed distance Cout the working is continued by returning to the original working conditions again. The overheat of the corner part is thus prevented automatically and the working accuracy of the work 7 can be increased.

Description

【発明の詳細な説明】 〔産業上の利用分野〕 この発明は、数値制御装置（以下ＮＣと称す）によシ加
工が制御されるレーザ加工制御装置、特に加工形状のコ
ーナ部分における加工制御方式の改良に関するものであ
る。[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a laser processing control device in which processing is controlled by a numerical control device (hereinafter referred to as NC), particularly a processing control method for corner portions of a processing shape. This is related to the improvement of.

〔従来の技術〕[Conventional technology]

第６図は従来のレーザ加工制御装置を示すもので、図中
、（１）はレーザ発振器、（２）ｕこのレーザ発振器（
１）から出力されるレーザ光で、反射鏡（８）で反射さ
れ方向ぢえて加工ヘッド（４）に導ひかれる。Figure 6 shows a conventional laser processing control device, in which (1) is a laser oscillator, (2) u this laser oscillator (
The laser beam outputted from 1) is reflected by a reflecting mirror (8) and guided to the processing head (4) in a different direction.

（５）ハこの加工ヘッド（４）に設けられた加工レンズ
で上記レーザ光（２）を集光し加工テーブル（６）上に
設置されたワーク（γ）に照射する。（８）、（９）は
上記加工テーブル（６）をＸ軸方向およびＹ軸方向に駆
動するモータ、α０）はＮＧで、上記両モータ（ｓ）　
、　（９）および上記レーザ発振器（１）を制御する。(5) The laser beam (2) is focused by the processing lens provided on the processing head (4) and irradiated onto the workpiece (γ) placed on the processing table (6). (8) and (9) are motors that drive the processing table (6) in the X-axis direction and Y-axis direction, α0) is NG, and both the above motors (s)
, (9) and the laser oscillator (1).

従来のレーザ加工制御装置は上記のように構成され、レ
ーザ発振器（１）から出力されたレーザ光（２）は、反
射鏡（８）でその方向を変えられて加工ヘッド（４）に
導びかれ、さらに加工レンズ（５）で集光されて図示し
な騒アシストガスとともにワーク（γ）に照射される。A conventional laser processing control device is configured as described above, and the laser beam (2) output from the laser oscillator (1) is directed to the processing head (4) after its direction is changed by the reflecting mirror (8). The light is further focused by a processing lens (5) and irradiated onto a workpiece (γ) together with a noise assist gas (not shown).

一方、加工テーブル（６）は、ＮＣ（至）により制御さ
れるモータ（ａ）　、　（ｏ）によって駆動され、また
上記レーザ発振器（１）もＮＣα０）により制御され、
これによりワーク（γ）は任意の形状に加工される。On the other hand, the processing table (6) is driven by motors (a) and (o) controlled by the NC (to), and the laser oscillator (1) is also controlled by the NCα0).
Thereby, the workpiece (γ) is processed into an arbitrary shape.

〔発明が解決しようとする問題点〕[Problem that the invention seeks to solve]

上記のような従来のレーザ加工制御装置では、ワーク（
７）をレーザ加工する際に急加速度が加わる場合、すな
わち加工方向がコーナ部を介して変わる場合、Ｎ　Ｃ（
１０）により制御されるモータ（８）、（９）の加速に
は限界があるため、急加速が加わる部分は加工速度が遅
くなる。このため、レーザ光（２）の強さを一定とした
場合には、加工形状のコーナ部分において入熱過多とな
り、切断幅が広くなったり部分的に溶は落ちてしまう等
の問題があった。In the conventional laser processing control device as mentioned above, the workpiece (
If sudden acceleration is applied when laser processing 7), that is, if the processing direction changes through a corner, NC(
Since there is a limit to the acceleration of the motors (8) and (9) controlled by 10), the machining speed will be slow in areas where sudden acceleration is applied. For this reason, when the intensity of the laser beam (2) is kept constant, excessive heat input occurs at the corners of the processed shape, causing problems such as the cutting width becoming wider and the melt falling off in parts. .

この発明は、かかる問題点を解決するためになさｈ友も
ので、急加速度が加わるような加工の場合でも、切断幅
が広くなった９部分的に溶は落ち几すすることなく、加
工精度を一定にすることができるレーザ加工制御装置を
得ることを目的とする。This invention was made to solve this problem, and even in machining where sudden acceleration is applied, the cutting width is widened, the melting does not slow down locally, and the machining accuracy is improved. The object of the present invention is to obtain a laser processing control device that can keep the constant value.

〔問題点を解決するための手段〕[Means for solving problems]

この発明に係るレーザ加工制御装置は、加工形状のコー
ナ部分における所要の範囲内で、加工条件を自動的に切
換えるようにしたものである。A laser processing control device according to the present invention is configured to automatically switch processing conditions within a required range at a corner portion of a processing shape.

〔作用〕[Effect]

この発明においては、加工形状のコーナ部分における所
要の範囲内で、加工条件が切換えられるので、コーナ部
分が入熱過多になることがな（加工精度を一定にするこ
とが可能となる。In this invention, since the machining conditions are changed within the required range at the corner portion of the machined shape, excessive heat input to the corner portion is prevented (machining accuracy can be kept constant).

〔実施例〕〔Example〕

第１図はこの発明の一実施例を示すもので、第２図に示
すように加工点（Ａ）からコーナ部（Ｂ）を経て加工点
（Ｃ）に到るコーナ部分の加工におけるＮｃｅＬｏ）の
機能を示す。この実施例においては、コーナ角度（θ）
が設定値（θ。）以下であることを条件としてコーナ部
分における所定の範囲内で、すなわちコーナ部（Ｂ）直
前の（Ｃ工ｎ）オよびコーナ部ｆＢ）直後の（Ｃｏｕｔ
）の範囲内で、この範囲外の加工条件と加工条件を自動
切換えするようにしている。これらの加工条件は、予め
ＮＣ（至）に設定される。FIG. 1 shows an embodiment of the present invention, and as shown in FIG. 2, NceLo) is used in machining a corner portion from a machining point (A) through a corner portion (B) to a machining point (C). Indicates the function of In this example, the corner angle (θ)
within a predetermined range in the corner part, on the condition that the value is less than the set value (θ.), that is, (Cout) immediately before the corner part (B) and (Cout
), the machining conditions outside this range are automatically switched. These processing conditions are set in advance to NC (to).

すなわち、第１図に示すステップ（ロ）におりて、コー
ナ角度（のが設定値（θ。）以下であるか否かが判断さ
れ、コーナ角度（θ）が設定値（θ）以下である場合に
のみ、以下に示す加工条件の切換が行なわれる。これは
コーナ角（θ）が設定値（θ。）を超える場合には、コ
ーナ部分において急加速度が加わらず加工条件を切換え
なくても不具合が生じないためである。That is, in step (b) shown in FIG. 1, it is determined whether the corner angle (is less than or equal to the set value (θ). The machining conditions shown below are switched only when the corner angle (θ) exceeds the set value (θ.). This is to prevent any defects from occurring.

ステップ（ロ）において、コーナ角度（θ）が設定値（
θ。）以下であると判断された場合には、ステップ（２
）においてコーナ部（Ｂ）までの残距離が（Ｃ１ｎ）以
下となったか否かが判断され、加工が（Ｃｉｎ）の領域
に入った際に、ステップ（１Ｂ）において加工条件の切
換えが行なわれる。この加工条件としては、レーザ光（
２）の出力やパルス周波数、デユーティ等の出力形態が
考えられ、コーナ部分の減速に合わせワーク（７）の入
熱が同一となるように適当に設定される。In step (B), the corner angle (θ) is set to the set value (
θ. ) or below, step (2)
), it is determined whether the remaining distance to the corner (B) is less than or equal to (C1n), and when the machining enters the (Cin) area, the machining conditions are switched in step (1B). . The processing conditions include laser light (
Output forms such as the output of 2), pulse frequency, duty, etc. can be considered, and are appropriately set so that the heat input to the workpiece (7) is the same in accordance with the deceleration at the corner portion.

このようにして、切換えられた加工条件により（Ｃｉｎ
）の領域が加工され、コーナ部（Ｂ）を経て（ＣＯｕｔ
）の領域に到ると、ステップ（ロ）において移動距離が
（ＣＯｕｔ）の領域を出たか否かが判別される。In this way, due to the changed machining conditions (Cin
) is machined, and the area (COut) is processed through the corner (B).
), it is determined in step (b) whether the moving distance has left the area (COut).

そして（ＣＯｕｔ）の領域を出た場合には、ステップ（
２））において加工条件が切換えられ、元の加工条件に
戻される。Then, when exiting the area of (COut), step (
In 2)), the machining conditions are switched and returned to the original machining conditions.

しかして、ＮＣ（至）に複数の加工条件を予め記憶させ
ておき、加工がコーナ部分の所定の範囲内に到った際に
、加工条件をコーナ用の加工条件に切換えることにより
、コーナ部分で入熱過多となることがなく、コーナ部分
での加工精度を向上させることができる。Therefore, by storing multiple machining conditions in advance in the NC (to) and switching the machining conditions to the machining conditions for the corner when the machining reaches a predetermined range of the corner part, This prevents excessive heat input and improves machining accuracy at corners.

なお上記実施例では、直線と直線とによりコーナ部分が
構成されているものを示したが、直線と曲線、曲線と曲
線によりコーナ部が構成されている場合にも同様に適用
できる。なお、この場合のコーナ角度（のは、曲線のコ
ーナ部（Ｂ）における接線を基準として測定する。In the above embodiments, the corner portion is formed by straight lines and straight lines, but the present invention can be similarly applied to cases where the corner portion is formed by straight lines and curved lines, or curved lines and curved lines. Note that the corner angle in this case is measured using the tangent at the corner (B) of the curve as a reference.

〔発明の効果〕〔Effect of the invention〕

この発明は以上説明したとおり、加工形状のコーナ部分
における所定の範囲内で加工条件を自動６一 的に切換えるようにしているので、コーナ部分の加工精
度を向上させ、加工精度を一定にすることができる等の
効果がある。As explained above, this invention automatically and uniformly switches the machining conditions within a predetermined range at the corner portion of the machined shape, thereby improving the machining accuracy at the corner portion and making the machining accuracy constant. There are effects such as being able to.

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

第１園はこの発明の一実施例に係るレーザ加工制御装置
のＮＣの機能を示す流れ図、第２図は加工形状のコーナ
部分の説明図、第３図は従来のレーザ加工制御装置を示
す構成図である。 （１）・・レーザ発振器　（２）・・レーザ光（４）Ｉ
Ｉ＋１加工ヘッド　　（））−◆ワークαＣり拳・ＮＣFig. 1 is a flowchart showing the NC function of a laser processing control device according to an embodiment of the present invention, Fig. 2 is an explanatory diagram of a corner portion of a processed shape, and Fig. 3 is a configuration showing a conventional laser processing control device. It is a diagram. (1)...Laser oscillator (2)...Laser light (4)I
I+1 machining head ())-◆Work αC Riken/NC

Claims (2)

【特許請求の範囲】[Claims] （１）レーザ発振器から出力されたレーザ光を、加工ヘ
ッドで集光してワークに照射するとともに、数値制御装
置によりワークと加工ヘッドとを相対移動させて任意形
状の加工を行なうレーザ加工制御装置において、上記数
値制御装置は、複数の加工条件を記憶し、加工形状のコ
ーナ部分における所要の範囲内で加工条件を自動的に切
換える機能を有していることを特徴とするレーザ加工制
御装置。(1) A laser processing control device that focuses laser light output from a laser oscillator on a processing head and irradiates it onto the workpiece, and also moves the workpiece and processing head relative to each other using a numerical control device to process arbitrary shapes. A laser processing control device characterized in that the numerical control device has a function of storing a plurality of processing conditions and automatically switching the processing conditions within a required range at a corner portion of a processing shape. （２）加工条件の切換えは、加工形状のコーナ部分のコ
ーナ角が設定値以下の場合にのみ行なわれることを特徴
とする特許請求の範囲第１項記載のレーザ加工制御装置
。(2) The laser machining control device according to claim 1, wherein the machining conditions are switched only when the corner angle of a corner portion of the machining shape is less than or equal to a set value.
JP61206157A 1986-09-02 1986-09-02 Laser beam control device Granted JPS6363593A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP61206157A JPS6363593A (en) 1986-09-02 1986-09-02 Laser beam control device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP61206157A JPS6363593A (en) 1986-09-02 1986-09-02 Laser beam control device

Publications (2)

Publication Number Publication Date
JPS6363593A true JPS6363593A (en) 1988-03-19
JPH046475B2 JPH046475B2 (en) 1992-02-05

Family

ID=16518743

Family Applications (1)

Application Number Title Priority Date Filing Date
JP61206157A Granted JPS6363593A (en) 1986-09-02 1986-09-02 Laser beam control device

Country Status (1)

Country Link
JP (1) JPS6363593A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01289587A (en) * 1988-05-17 1989-11-21 Yamazaki Mazak Corp Working control method in laser beam machine
JPH03155485A (en) * 1989-11-10 1991-07-03 Mitsubishi Electric Corp System for setting laser beam machining condition
US5585018A (en) * 1994-02-24 1996-12-17 Mitsubishi Denki Kabushiki Kaisha Laser cutting method eliminating defects in regions where cutting conditions are changed
CN114434012A (en) * 2022-01-19 2022-05-06 甬矽半导体(宁波)有限公司 Laser printing path planning method and laser device

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60127775A (en) * 1983-12-15 1985-07-08 Mitsubishi Electric Corp Laser controller
JPS60255295A (en) * 1984-05-30 1985-12-16 Mitsubishi Electric Corp Automatic laser beam machine

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60127775A (en) * 1983-12-15 1985-07-08 Mitsubishi Electric Corp Laser controller
JPS60255295A (en) * 1984-05-30 1985-12-16 Mitsubishi Electric Corp Automatic laser beam machine

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01289587A (en) * 1988-05-17 1989-11-21 Yamazaki Mazak Corp Working control method in laser beam machine
JPH03155485A (en) * 1989-11-10 1991-07-03 Mitsubishi Electric Corp System for setting laser beam machining condition
US5585018A (en) * 1994-02-24 1996-12-17 Mitsubishi Denki Kabushiki Kaisha Laser cutting method eliminating defects in regions where cutting conditions are changed
CN114434012A (en) * 2022-01-19 2022-05-06 甬矽半导体(宁波)有限公司 Laser printing path planning method and laser device

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JPH046475B2 (en) 1992-02-05

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