JP2520953B2 - Laser processing equipment - Google Patents
Laser processing equipmentInfo
- Publication number
- JP2520953B2 JP2520953B2 JP1033245A JP3324589A JP2520953B2 JP 2520953 B2 JP2520953 B2 JP 2520953B2 JP 1033245 A JP1033245 A JP 1033245A JP 3324589 A JP3324589 A JP 3324589A JP 2520953 B2 JP2520953 B2 JP 2520953B2
- Authority
- JP
- Japan
- Prior art keywords
- conical
- laser
- ring
- processing
- lens
- 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
Landscapes
- Optical Elements Other Than Lenses (AREA)
- Laser Beam Processing (AREA)
Description
【発明の詳細な説明】 産業上の利用分野 本発明はレーザー光を用いて各種金属やその他の加工
材に対して加工を行うレーザー加工装置に関するもので
ある。Description: TECHNICAL FIELD The present invention relates to a laser processing apparatus for processing various metals and other processing materials by using laser light.
従来の技術 従来のレーザー加工装置はレーザーの出力や加工軌跡
等のNCデータ及びNCプログラムをレーザー加工機用数値
制御装置に与えることによって、穴あけ加工やその他の
加工を行っていた。2. Description of the Related Art Conventional laser processing machines perform NC drilling and other processing by giving NC data such as laser output and processing locus and NC programs to a numerical control device for laser processing machines.
発明が解決しようとする課題 しかし、従来のような数値制御装置による加工におい
て、円形加工特に微小円について円の指令によって高速
加工すると、加工形状が歪むという問題があった。DISCLOSURE OF THE INVENTION Problems to be Solved by the Invention However, in machining by a conventional numerical control device, there has been a problem that the machining shape is distorted when circular machining, particularly, high-speed machining of a minute circle by a circle command.
本発明の目的は上記問題点を解消し、高速かつ高精度
に微小円の加工を可能とするレーザー加工装置を提供し
ようとするものである。An object of the present invention is to solve the above problems and to provide a laser processing apparatus capable of processing a fine circle at high speed and with high accuracy.
課題を解決するための手段 上記目的達成のため本発明においては、レーザーの光
軸上に同じ屈折率と同じ円錐部の傾きを持つ２つの円錐
レンズの先端を互いに対向させると共に相互間の距離を
可変に設け、２つの円錐レンズ間の距離を変化させるこ
とで２つの円錐レンズを通過することにより出力される
リング状のレーザー光の円の半径を可変にした。Means for Solving the Problems To achieve the above object, in the present invention, the tips of two conical lenses having the same refractive index and the same inclination of the conical portion on the optical axis of the laser are made to face each other and the distance between them is set to be equal to each other. The radius of the circle of the ring-shaped laser light output by passing through the two conical lenses is made variable by changing the distance between the two conical lenses.
作 用 本発明では、レーザーの光軸上に同じ屈折率と同じ円
錐部の傾きを持つ２つの円錐レンズを設け、これら円錐
レンズは先端を互いに対向させると共に相互間の距離を
可変に設け、レーザー光源側でレーザーを屈折すること
により、極めて精密な半径のリング状の平行光を得、レ
ーザー光放射先端から真直に放射されるよう第２の円錐
レンズにより屈折するようにした。又、レーザー光源側
の円錐レンズを可動にする等２つの円錐レンズ間の距離
を変えることにより前記リング状の平行光が加工面上に
描くリングの外周半径を容易に変えることができると共
に加工面に対して直角方向の加工ができる。Operation In the present invention, two conical lenses having the same refractive index and the same inclination of the conical portion are provided on the optical axis of the laser. These conical lenses have their tips opposed to each other and the distance between them is variable, By refracting the laser on the light source side, ring-shaped parallel light with an extremely precise radius was obtained, and refracted by the second conical lens so as to be emitted straight from the laser light emitting tip. Further, by changing the distance between the two conical lenses such as making the conical lens on the laser light source side movable, the outer radius of the ring drawn by the ring-shaped parallel light on the processed surface can be easily changed and the processed surface can be easily changed. Can be processed in a direction perpendicular to.
実施例 本発明の実施例として示した図面について説明する。
第１図において、１は円錐レンズ、２は円錐部、３は先
端を示す。Embodiments Drawings shown as embodiments of the present invention will be described.
In FIG. 1, 1 is a conical lens, 2 is a conical portion, and 3 is a tip.
第２図は前記円錐レンズ１を用いてレーザー光を屈折
させた状態を示すもので、４はレーザー、５は光軸であ
る。円錐レンズ１の円錐部２の光軸５に対する傾きを
θ、円錐部２へのレーザー４の入射角をθ１、出射角を
θ２、屈折後のレーザー４と光軸５とのなす角度をθ３
とし、円錐レンズ１の屈折率をｎとすると、 θ１＝θ θ２＝sin-1（ｎ sinθ１） θ３＝θ２−θ１ ＝sin-1（ｎ sinθ）−θ となる。又、円錐レンズ１の先端３からｌ離れた平面上
に外周半径がＲの円を描くときの距離と屈折角との関係
は次式で表わされる。FIG. 2 shows a state in which laser light is refracted by using the conical lens 1, and 4 is a laser and 5 is an optical axis. The inclination of the conical portion 2 of the conical lens 1 with respect to the optical axis 5 is θ, the incident angle of the laser 4 on the conical portion 2 is θ1, the outgoing angle is θ2, and the angle between the refracted laser 4 and the optical axis 5 is θ3.
And the refractive index of the conical lens 1 is n, θ1 = θ θ2 = sin −1 (n sin θ1) θ3 = θ2−θ1 = sin −1 (n sin θ) −θ. Further, the relationship between the distance and the refraction angle when a circle with an outer radius of R is drawn on a plane 1 away from the tip 3 of the conical lens 1 is expressed by the following equation.
Ｒ＝ltanθ３ …（イ） 第３図は同じ屈折率と円錐部の傾きをもつ円錐レンズ
２個を光軸上に両者の先端が向かい合うように配置した
一例を示す。出力されるレーザーは図示したようにリン
グ状の平行光となる。R = l tan θ3 (a) FIG. 3 shows an example in which two conical lenses having the same refractive index and inclination of the conical portion are arranged on the optical axis so that their tips face each other. The output laser becomes a ring-shaped parallel light as shown.
このリング状の平行光はリングの外周半径をＲ、リン
グの幅をｒとし、リングの幅ｒは入力されるレーザーの
半径と同一である。又、リングの外周半径Ｒは第２図で
求めた式（イ）から導くことができる。The ring-shaped parallel light has a ring outer radius of R and a ring width of r, and the ring width r is the same as the radius of the input laser. Further, the outer radius R of the ring can be derived from the equation (a) obtained in FIG.
従って、上記２個の円錐レンズ間の距離ｄを変えるこ
とによって、リングの外周半径Ｒを変えることができ
る。Therefore, the outer radius R of the ring can be changed by changing the distance d between the two conical lenses.
上記のような外形とレーザーの光路を示す円錐レンズ
を用いた加工装置の一例を第４図に示した。FIG. 4 shows an example of a processing apparatus using a conical lens having the above outer shape and the optical path of the laser.
第４図において、１、１は同じ屈折率と円錐部の傾き
をもつ円錐レンズ、６はレーザー放射管のノズルであ
る。レーザー光源側の円錐レンズ１はノズル６内で、摺
動可能に内装され、又、第２の円錐レンズ１はノズル６
の開口縁部内に固定されている。第３図と同様に円錐レ
ンズ１、１の先端３、３は光軸５上で向かい合うように
配置されている。In FIG. 4, 1 and 1 are conical lenses having the same refractive index and the same inclination of the conical portion, and 6 is a nozzle of a laser emission tube. The conical lens 1 on the laser light source side is slidably mounted inside the nozzle 6, and the second conical lens 1 is the nozzle 6
It is fixed in the opening edge. Similar to FIG. 3, the tips 3 and 3 of the conical lenses 1 and 1 are arranged to face each other on the optical axis 5.
この実施例において、レーザー４は円錐レンズ１で屈
折され、その後、放射端部側の円錐レンズ１でリング状
の平行光７となって加工物に放射されるようになってい
る。円錐レンズ１が摺動可能であるため、円錐レンズ
１、１間の距離を変えることができ、上記リング状の平
行光が平面に描くリングの外周半径を変えることができ
る。In this embodiment, the laser 4 is refracted by the conical lens 1, and then the conical lens 1 on the side of the radiating end forms a ring-shaped parallel light 7 which is radiated to a workpiece. Since the conical lens 1 is slidable, the distance between the conical lenses 1 and 1 can be changed, and the outer radius of the ring drawn by the ring-shaped parallel light on a plane can be changed.
発明の効果 上記のように本発明はレーザーの光軸上に同じ屈折率
と円錐部の傾きを持つ円錐レンズを２つ用い、光軸上で
その先端が向かい合うように配設することにより、光軸
を中心とする精密でかつ微細なリング状の平行レーザー
光にして出力できるので、加工面に対して直角方向の加
工が得られる。EFFECTS OF THE INVENTION As described above, the present invention uses two conical lenses having the same refractive index and the same inclination of the conical portion on the optical axis of the laser, and arranges them so that their tips face each other on the optical axis. Since it can be output as a precise and fine ring-shaped parallel laser light centered on the axis, processing in the direction perpendicular to the processing surface can be obtained.
又、２個の円錐レンズ間の距離を変えることにより、
前記リング状の平行光が加工面上に描くリングの外周半
径を変えることができ、微小な円を加工する場合でも高
速で、加工形状が歪むことのない高精度の加工を行うこ
とができる等優れた効果を有する。Also, by changing the distance between the two conical lenses,
The ring-shaped collimated light can change the outer radius of the ring drawn on the processing surface, and even when processing a minute circle, high-speed processing can be performed without distortion of the processing shape, etc. Has excellent effect.
第１図は円錐レンズの斜視図、第２図は円錐レンズでレ
ーザー光の屈折状態を示した説明図、第３図は同じ屈折
率と円錐部の傾きをもつ円錐レンズ２個を用いた場合の
レーザー光路の説明図、第４図は加工装置の一例を示し
た斜視図である。 １……円錐レンズ、２……円錐部 ３……先端、４……レーザー、５……光軸FIG. 1 is a perspective view of a conical lens, FIG. 2 is an explanatory view showing a refraction state of laser light by the conical lens, and FIG. 3 is a case where two conical lenses having the same refractive index and the inclination of the conical portion are used. And FIG. 4 is a perspective view showing an example of a processing device. 1 ... Cone lens, 2 ... Cone part 3 ... Tip, 4 ... Laser, 5 ... Optical axis
───────────────────────────────────────────────────── フロントページの続き (72)発明者 浮田 克一 大阪府門真市大字門真1006番地 松下電 器産業株式会社内 (56)参考文献 特開 昭51−134997（ＪＰ，Ａ) 特開 昭53−44995（ＪＰ，Ａ) ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Katsuichi Uchida 1006 Kadoma, Kadoma City, Osaka Prefecture Matsushita Electric Industrial Co., Ltd. (56) Reference JP-A-51-134997 (JP, A) JP-A-53 -44995 (JP, A)
Claims (1)
部の傾きを持つ２つの円錐レンズの先端を互いに対向さ
せると共に相互間の距離を可変に設け、２つの円錐レン
ズ間の距離を変化させることで２つの円錐レンズを通過
することにより出力されるリング状のレーザー光の円の
半径を可変にしたことを特徴とするレーザー加工装置。1. A conical lens having the same refractive index and the same inclination of a conical portion on the optical axis of a laser is made to face each other, and the distance between them is variably provided. A laser processing device characterized in that a radius of a circle of a ring-shaped laser beam output by passing through two conical lenses by changing the radius is made variable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1033245A JP2520953B2 (en) | 1989-02-13 | 1989-02-13 | Laser processing equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1033245A JP2520953B2 (en) | 1989-02-13 | 1989-02-13 | Laser processing equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02211994A JPH02211994A (en) | 1990-08-23 |
| JP2520953B2 true JP2520953B2 (en) | 1996-07-31 |
Family
ID=12381096
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1033245A Expired - Lifetime JP2520953B2 (en) | 1989-02-13 | 1989-02-13 | Laser processing equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2520953B2 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5378582A (en) * | 1992-09-29 | 1995-01-03 | Bausch & Lomb Incorporated | Symmetric sweep scanning technique for laser ablation |
| AU4660193A (en) * | 1992-09-29 | 1994-04-26 | Bausch & Lomb Incorporated | Symmetric scanning technique for laser ablation |
| WO2008087831A1 (en) * | 2007-01-15 | 2008-07-24 | Japan Unix Co., Ltd. | Laser soldering device |
| US8035901B2 (en) * | 2008-04-30 | 2011-10-11 | Corning Incorporated | Laser scoring with curved trajectory |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS51134997A (en) * | 1975-05-20 | 1976-11-22 | Toshiba Corp | Laser-utilizing processing device |
| JPS5344995A (en) * | 1976-10-06 | 1978-04-22 | Hitachi Ltd | Laser machining apparatus |
-
1989
- 1989-02-13 JP JP1033245A patent/JP2520953B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH02211994A (en) | 1990-08-23 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US9656349B2 (en) | Laser processing apparatus capable of increasing focused beam diameter | |
| US5690845A (en) | Optical device for laser machining | |
| US4291938A (en) | Apparatus for dark field illumination | |
| US4822974A (en) | Laser hold drilling system with lens and two wedge prisms including axial displacement of at least one prism | |
| RU2711287C1 (en) | Projection optics for metal processing by means of laser radiation and containing its laser processing head | |
| JP6528085B2 (en) | Laser processing system | |
| US4636611A (en) | Quiescent circle and arc generator | |
| TW201811480A (en) | AA method of laser processing of a metallic material with high dynamic control of the movement axes of the laser beam along a predetermined processing path, as well as a machine and a computer program for the implementation of said method | |
| US3972599A (en) | Method and apparatus for focussing laser beams | |
| CA2146727A1 (en) | Fiber optical coupler | |
| US4693567A (en) | Apparatus for projecting luminous lines on an object by a laser beam | |
| JP2020508223A (en) | Apparatus for processing material using laser beam along processing direction and method for processing material using laser beam | |
| JPS6293095A (en) | Laser beam machine | |
| JP2520953B2 (en) | Laser processing equipment | |
| KR102154285B1 (en) | Drilling apparatus using laser beam | |
| US9878400B1 (en) | Device for controlling the direction of a laser beam | |
| JP2000071088A (en) | Laser processing machine | |
| JP6833117B1 (en) | Laser processing machine | |
| JPS62258412A (en) | Optical focus adjusting device | |
| JP2021085984A (en) | Beam shaper and processing device | |
| US4573758A (en) | Beam deflection mechanism | |
| RU2283738C1 (en) | Device for laser working | |
| US5079402A (en) | Laser beam bender | |
| JP2002316291A (en) | Laser beam machine | |
| JPS63108318A (en) | Laser working device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20090517 Year of fee payment: 13 |
|
| EXPY | Cancellation because of completion of term | ||
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20090517 Year of fee payment: 13 |