JPH046475B2 - - Google Patents
Info
- Publication number
- JPH046475B2 JPH046475B2 JP61206157A JP20615786A JPH046475B2 JP H046475 B2 JPH046475 B2 JP H046475B2 JP 61206157 A JP61206157 A JP 61206157A JP 20615786 A JP20615786 A JP 20615786A JP H046475 B2 JPH046475 B2 JP H046475B2
- Authority
- JP
- Japan
- Prior art keywords
- processing
- laser
- corner
- control device
- machining
- 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.)
- Expired - Lifetime
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—Program-control systems
- G05B19/02—Program-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 program 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 program 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)
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）
により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] This invention is a numerical control device (hereinafter referred to as NC).
This invention relates to a laser machining control device that controls machining, particularly to an improvement of a machining control method for corner portions of a machining shape.
第３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はこのレーザ発
振器１から出力されるレーザ光で、反射鏡３で反
射され方向を変えて加工ヘツド４に導びかれる。
５はこの加工ヘツド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７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、１０はNCで、上記両モータ８，９および
上記レーザ発振器１を制御する。
FIG. 3 shows a conventional laser processing control device. In the figure, 1 is a laser oscillator, and 2 is a laser beam outputted from this laser oscillator 1. The laser beam is reflected by a reflecting mirror 3 and is directed to a processing head 4. be guided by.
A processing lens 5 provided on the processing head 4 focuses the laser beam 2 and irradiates it onto a workpiece 7 placed on a processing table 6. 8 and 9 are motors that drive the processing table 6 in the X-axis direction and the Y-axis direction, and 10 is an NC that controls both the motors 8 and 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３でその方向を変えられて加工ヘツド
４に導びかれ、さらに加工レンズ５で集光されて
図示しないアシストガスとともにワーク７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
The light beam is directed to a processing head 4 with its direction changed by a reflecting mirror 3, and further condensed by a processing lens 5 and irradiated onto a workpiece 7 together with an assist gas (not shown).
一方、加工テーブル６は、NC１０により制御
されるモータ８，９によつて駆動され、また上記
レーザ発振器１もNC１０により制御され、これ
によりワーク７は任意の形状に加工される。 On the other hand, the processing table 6 is driven by motors 8 and 9 controlled by the NC 10, and the laser oscillator 1 is also controlled by the NC 10, whereby the work 7 is processed into an arbitrary shape.
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、加工方向がコー
ナ部を介して変わる場合は、コーナ部分で一旦速
度が落ちる。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、コーナ角内の部分に熱がこもり
切断幅が広くなつたり部分的に溶け落ちてしまう
等の問題があつた。この現象は特にコーナ角度が
狭い場合に顕著である。
In the conventional laser processing control device as mentioned above,
When laser processing the workpiece 7, if the processing direction changes through a corner, the speed temporarily decreases at the corner. For this reason, when the intensity of the laser beam 2 is kept constant, there will be excessive heat input at the corners of the processed shape, and the heat will be trapped inside the corner corners, causing the cutting width to become wider or partially melting. There were other problems. This phenomenon is particularly noticeable when the corner angle is narrow.
この発明は、かかる問題点を解決するためにな
されたもので、コーナ部分の加工の場合でも、切
断幅が広くなつたり部分的に溶け落ちたりするこ
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 when machining corners, it is possible to maintain constant machining accuracy without widening the cutting width or causing partial melting. The purpose is to obtain a laser processing control device.
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.
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く加
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 a required range at the corner portion of the machined shape, it is possible to maintain constant machining accuracy without excessive heat input to the corner portion.
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NC１
０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（θc）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（Cio）およびコーナ部Ｂ直後
の（Cput）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NC１０に設定される。
FIG. 1 shows an embodiment of the present invention. As shown in FIG.
Indicates the function of 0. In this embodiment, on the condition that the corner angle θ is less than or equal to the set value (θ c ), within a predetermined range at the corner portion, that is, (C io ) immediately before the corner portion B and (C io ) immediately after the corner portion B. The processing conditions are automatically switched between the processing conditions outside this range and the processing conditions within the range of (put ). These processing conditions are set in advance in the NC 10.
すなわち、第１図に示すステツプ(11)において、
コーナ角度θが設定値（θc）以下であるか否かが
判断され、コーナ角度θが設定値（θc）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（θc）を超え
る場合には、コーナ角が広いため、比較的にコー
ナ内に熱がこもらず伝導し、溶け落ちが少ないた
めである。 That is, in step (11) shown in FIG.
It is determined whether the corner angle θ is less than or equal to the set value (θ c ), and only when the corner angle θ is less than or equal to the set value (θ c ), the processing conditions shown below are switched. This is because when the corner angle θ exceeds the set value (θ c ), the corner angle is wide, so heat is relatively conducted without being trapped in the corner, and there is little burn-through.
ステツプ(11)において、コーナ角度θが設定値
（θc）以下であると判断された場合には、ステツ
プ(12)においてコーナ部Ｂまでの残距離が（Cio）
以下となつたか否かが判断され、加工が（Cio）
の領域に入つた際に、ステツプ（13）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
テイ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。 If it is determined in step (11) that the corner angle θ is less than the set value (θ c ), in step (12) the remaining distance to corner B is determined as (C io ).
It is determined whether or not the following has been achieved, and the processing is (C io )
When entering the region, processing conditions are switched in step (13). As the machining conditions, the output form of the laser beam 2, pulse frequency, duty, etc. can be considered, and are appropriately set so that the heat input to the workpiece 7 is the same as 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
（Cio）の領域が加工され、コーナ部Ｂを経て
（Cput）の領域に到ると、ステツプ（14）におい
て移動距離が（Cput）の領域を出たか否かが判別
される。そして（Cput）の領域を出た場合には、
ステツプ（15）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。 In this way, the area (C io ) is machined under the changed machining conditions, and when the area (C put ) is reached through corner B, the moving distance is changed to (C put ) in step (14). It is determined whether or not the object has left the area. And if you leave the area of (C put ),
In step (15), the processing conditions are changed,
The original processing conditions are restored.
しかして、NC１０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
に到つた際に、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 NC10 and switching the machining conditions to the machining conditions for the corner when machining reaches a predetermined range of the corner, excessive heat input at the corner can be avoided. This prevents the problem from occurring, and it is possible to improve the machining accuracy at the 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θ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 θ in this case is measured using the tangent at the corner B of the curve as a reference.
この発明は以上説明したように、エツジ前後の
ある程度の範囲では例えば低速度低レーザ出力で
加工する時と同じ条件で加工するよう加工条件を
切換えるので、単に、鋭角のエツジ部分で角度や
速度に応じてレーザ出力を比例的あるいは指数的
に変化させる場合に比して、エツジ部分でのレー
ザ出力変化が間に合わなくなることがなく、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 changes the machining conditions so that the machining conditions are the same as when machining with low speed and low laser output in a certain range before and after the edge, so the angle and speed can simply be changed at the sharp edge part. Compared to the case where the laser output is changed proportionally or exponentially, the laser output does not change in time at the edge, and the machining accuracy at the corner can be improved and the machining accuracy can be kept constant. There are effects such as being able to do it.
第１図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……
加工ヘツド、７……ワーク、１０……NC。
Fig. 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...
Processing head, 7...Work, 10...NC.
Claims (1)
工ヘツ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ツドとを相対
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のコーナ
角が設定値以下の場合に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 The laser beam output from the laser oscillator is focused on the processing head and irradiated onto the workpiece,
In a laser processing control device that processes an arbitrary shape by relatively moving a workpiece and a processing head using a numerical control device, the numerical control device memorizes a plurality of processing conditions and sets the corner angle of the corner portion of the processing shape. 1. A laser processing control device characterized by having a function of automatically switching processing conditions within a required range at a corner portion of a processed shape when the value is less than or equal to a certain value.
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 JPS6363593A (en) | 1988-03-19 |
| JPH046475B2 true 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) |
Families Citing this family (4)
| 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 |
| JP3175463B2 (en) * | 1994-02-24 | 2001-06-11 | 三菱電機株式会社 | Laser cutting method |
| CN114434012B (en) * | 2022-01-19 | 2024-11-05 | 甬矽半导体(宁波)有限公司 | Laser printing path planning method and laser device |
Family Cites Families (2)
| 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 |
-
1986
- 1986-09-02 JP JP61206157A patent/JPS6363593A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6363593A (en) | 1988-03-19 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |