JPS62112388A - Laser beam converging device - Google Patents

Laser beam converging device

Info

Publication number
JPS62112388A
JPS62112388A JP25315285A JP25315285A JPS62112388A JP S62112388 A JPS62112388 A JP S62112388A JP 25315285 A JP25315285 A JP 25315285A JP 25315285 A JP25315285 A JP 25315285A JP S62112388 A JPS62112388 A JP S62112388A
Authority
JP
Japan
Prior art keywords
nozzle
tip
workpiece
dimension
laser beam
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
JP25315285A
Other languages
Japanese (ja)
Inventor
Tetsuo Fujisawa
藤澤 哲夫
Tokihide Nibu
丹生 時秀
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co Ltd
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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP25315285A priority Critical patent/JPS62112388A/en
Publication of JPS62112388A publication Critical patent/JPS62112388A/en
Pending legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01SDEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
    • H01S3/00Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
    • H01S3/02Constructional details
    • H01S3/03Constructional details of gas laser discharge tubes
    • H01S3/036Means for obtaining or maintaining the desired gas pressure within the tube, e.g. by gettering, replenishing; Means for circulating the gas, e.g. for equalising the pressure within the tube

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Plasma & Fusion (AREA)
  • Optics & Photonics (AREA)
  • Lasers (AREA)

Abstract

PURPOSE:To extend the life of a nozzle by providing a replaceable annular or protruded protective device which is projected from the tip of the nozzle by more than 0.2mm. CONSTITUTION:A screw-in type annular protective ring 10 is provided at the tip of a nozzle 7 so as to be projected from the tip of the nozzle by a dimension A so that the tip of the nozzle is not contacted with a work directly. The dimension A is preferably 0.2-2mm and brass or Al is recommended as the material. In order to avoid a harmful effect of stopping up, it is effective to adjust the dimension A by providing an adjusting screw 12 on the circumference of a base 11. With this constitution, the workability can be stable for a long period and the life of the nozzle can be extended.

Description

【発明の詳細な説明】 産業上の利用分野 本発明はレーザのビームエネルギヲ、集光レンズを用い
て集束し、補助ガスと共に被加工物に照射することによ
り、切断・穴あけ・スクライビング・溶接等の加工を行
なわせることを目的としたレーザ加工装置に関するもの
である。
[Detailed Description of the Invention] Industrial Field of Application The present invention focuses the laser beam energy using a condensing lens and irradiates the workpiece together with an auxiliary gas to perform cutting, drilling, scribing, welding, etc. This invention relates to a laser processing device for the purpose of processing.

従来の技術 従来のレーザ加工装置におけるレーザ集光部の一例を第
2図に示す。発振器より出力されたビーム1は、反射鏡
2で方向を変えた後、レンズ3により波長オーダのスポ
ット4に集束される。
2. Description of the Related Art An example of a laser focusing section in a conventional laser processing apparatus is shown in FIG. A beam 1 output from an oscillator is changed in direction by a reflecting mirror 2 and then focused by a lens 3 onto a spot 4 on the order of a wavelength.

このスポット4の有する高密度のエネルギを、ワーク5
に照射すると共に、加工目的て応じた一定圧力の補助ガ
スeをノズル7より、ビーム1と同軸に吹き付けること
により、加工能率の向上、レンズ3の冷却、ワーク5よ
りの飛散物がレンズ3に付着するのを防止すると共に、
切断・穴あけ加工等の際のドロス8を除去する。。
The high-density energy of this spot 4 is transferred to the workpiece 5.
At the same time, by spraying an auxiliary gas e at a constant pressure according to the processing purpose coaxially with the beam 1 from the nozzle 7, processing efficiency is improved, the lens 3 is cooled, and debris from the workpiece 5 is removed from the lens 3. In addition to preventing adhesion,
To remove dross 8 during cutting, drilling, etc. .

ノズル7は上述の如く、最もワーク6に近い構成部品で
あるため、耐熱性、レーザに対する耐光性等の高い材料
であることが要求され、加工用レーザとして最も一般的
なCO2レーザにおいては、通常、銅が用いられる。
As mentioned above, the nozzle 7 is the component closest to the workpiece 6, so it is required to be made of a material with high heat resistance and light resistance to laser light. , copper is used.

またノズル7の加工精度は、特に先端部付近の形状・寸
法が直接ワーク5の加工品質、補助ガス6の消費量等に
関連するため初期精度を長期間保持されることが重要と
なる。第3図に従来構造のノズル7の先端部加工の一例
を示す。穴径を確保し、補助ガス6の流れを整えるため
、穴径に応じた、一定長さのストレート部9を有してい
る。
Furthermore, it is important that the machining accuracy of the nozzle 7 is maintained for a long period of time, especially since the shape and dimensions near the tip are directly related to the machining quality of the workpiece 5, the amount of consumption of the auxiliary gas 6, and the like. FIG. 3 shows an example of machining of the tip of a nozzle 7 having a conventional structure. In order to secure the hole diameter and adjust the flow of the auxiliary gas 6, a straight portion 9 of a constant length is provided according to the hole diameter.

発明が解決しようとする問題点 しかるに、従来構造においては、加工性能に直接かかわ
るノズル7の先端部かワーク5と近接(一般には数耐以
下)していることに起因する問題点が多く存在していた
。具体例としては、ノズル高さ調整時、もしくけ加工中
のワーク5のそり、ワーク溶隔物の吹き上がり等により
、ノズル7とワーク6とが軽い接触を起こし、軟質材で
ある銅製のノズル7が摩耗・損傷を受け、第4図に示す
様にノズル穴先端形状がそこなわれ°Cしまう様なケー
スがあげられる。第4図(a)のような片べり、第4図
(b)のような全体が均一に摩耗する場合、いずれもノ
ズルとしての機能は十分に果たされず、再製作が必要と
なり無駄が多い。
Problems to be Solved by the Invention However, in the conventional structure, there are many problems caused by the fact that the tip of the nozzle 7, which directly affects machining performance, is in close proximity to the workpiece 5 (generally for several hours or less). was. As a specific example, when adjusting the nozzle height, if the nozzle 7 and the workpiece 6 come into slight contact due to warping of the workpiece 5 during the machining process, blowing up of the workpiece, etc., and the nozzle is made of a soft copper material. There is a case where the nozzle hole 7 is worn out or damaged and the shape of the nozzle hole tip is damaged as shown in Fig. 4. If one side of the nozzle is worn out as shown in FIG. 4(a), or the entire nozzle wears out uniformly as shown in FIG. 4(b), the function of the nozzle is not fully fulfilled, and remanufacturing is required, resulting in a lot of waste.

問題点を解決するための手段 上記問題点を解決するため、本発明のレーザ加工装置は
ノズル先端より0.2mm以上突出したりング状もしく
け突起状の交換可能なノズル先端保護装置をノズルに取
付けてなるものである。
Means for Solving the Problems In order to solve the above-mentioned problems, the laser processing device of the present invention is equipped with a replaceable nozzle tip protection device that protrudes from the nozzle tip by 0.2 mm or more or has a ring-like or wedge-shaped protrusion on the nozzle. That's what happens.

作  用 上記構成によシ、ワークのそうが生じていてもワークと
接触するのはノズル先端保護装置であり、ノズル先端保
護装置が摩耗するだ(づで17−りの損傷を防止するこ
とができる。
Effect With the above configuration, even if the workpiece is damaged, it is the nozzle tip protection device that comes into contact with the workpiece, and the nozzle tip protection device will wear out. can.

実施例 第1図を参照して、本発明における〜実施例を説明する
Embodiments Embodiments of the present invention will be described with reference to FIG.

第1図(a)においてノズル7先端に、交換可能な、例
えばネジ込み構造の保護リング10が設けである。保護
リング1oけ、ノズル7先端より寸法Aだけ突出してお
り、ノズル7先端がワーク5に直接接触しないようにな
っている。保護リング10の寸法A、B等は使用するレ
ンズの焦点距離、加工目的等によシ変更する。ノズル保
護という点よりみれば寸法Aは大きい方が望ましいが、
ワークとノズル先端との間隔より制限を受けるため、0
.2〜2朋の間で設定することが望ましい。
In FIG. 1(a), a replaceable protective ring 10 of, for example, screw-in structure is provided at the tip of the nozzle 7. As shown in FIG. The protective ring 1o protrudes from the tip of the nozzle 7 by a dimension A, so that the tip of the nozzle 7 does not come into direct contact with the workpiece 5. The dimensions A, B, etc. of the protective ring 10 vary depending on the focal length of the lens used, the processing purpose, etc. From the point of view of nozzle protection, it is desirable that dimension A is larger, but
0 because it is limited by the distance between the workpiece and the nozzle tip.
.. It is desirable to set it between 2 and 2.

保護リング10の材質としては、アルミニウム。The material of the protective ring 10 is aluminum.

黄銅等が適描である。Brass etc. are suitable.

なお、加工目的、たとえばセラミックのスクライビング
のように、ワークからのはね返りがノズルに直接影響を
与える様な加工の場合においては、第1図(a)のよう
にノズル穴先端がチャンバーの如く包まれた構造だと目
づまシ等の俗書を引き起こす危険性が考えられる。
In addition, for processing purposes such as ceramic scribing, where the splash from the work directly affects the nozzle, the tip of the nozzle hole is wrapped like a chamber as shown in Figure 1 (a). If the structure is similar, there is a risk that it will lead to slang such as "mezumashi".

このような場合には第」図0))に示すように、ノズル
穴周辺を開放構造とするのがよい。第1図(b)におい
ては、ベース11周上に数ケ所配された調整ネジ12に
より、寸法Aの設定を調整可能としている。
In such a case, it is preferable to have an open structure around the nozzle hole, as shown in Figure 0). In FIG. 1(b), the setting of the dimension A can be adjusted using several adjusting screws 12 arranged around the base 11.

第1図(a) 、 (b)いずれの構造においても、ノ
ズル先端部のワークとの接触による損傷が未然に防止さ
れるため、ストレート部9の寸法は長期間の使用におい
ても保証され、したがって加工性能の安定化が図れる。
In either structure shown in FIGS. 1(a) and 1(b), damage caused by contact of the nozzle tip with the workpiece is prevented, so the dimensions of the straight part 9 are guaranteed even during long-term use, and therefore Machining performance can be stabilized.

また、これら保護部が使用不能となるまで損傷した場合
は、保護部のみ新品と交換すればよく、従来のよってノ
ズル全体を交換する場合に比べ、ランニングコストの低
減につながる。
Furthermore, if these protective parts are damaged to the point that they are unusable, only the protective parts need to be replaced with new ones, leading to lower running costs compared to the conventional case of replacing the entire nozzle.

発明の効果 以上のように、本発明による効果としては以下の点があ
げられる。
Effects of the Invention As described above, the effects of the present invention include the following points.

■ ノズル先端形状が保護されるため、加工性能が長期
安定する。
■ Machining performance is stable over a long period of time because the nozzle tip shape is protected.

■ ノズル先端部のダメージを受ける頻度が大幅に低減
されるため、高価なノズルの交換時期が延長される。損
傷時においても、先端の保護部のみの交換ですみ、消耗
品としてのノズルの寿命が大幅に延びる。
■ The frequency of damage to the nozzle tip is greatly reduced, extending the time it takes to replace expensive nozzles. Even in the event of damage, only the protective part at the tip needs to be replaced, greatly extending the life of the nozzle as a consumable item.

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

第1図(a) 、 (b)は本発明の実施例におりるレ
ーザ集光装置のノズル部の断面図、第2図は従来のしの
損傷状態を示す断面図である。 1− ビーム、3・・・レンズ、7・・ノズル、1o・
・ 保護リング、11・・−・ベース、12・・・調整
ネジ9゜ 代理人の氏名 弁理士 中 尾 敏 男 はプ\1名f
O゛−ラ王!マ・pン1′ イf−へ一芙 f2−i・)マキジ (α) h 〈ム
FIGS. 1(a) and 1(b) are cross-sectional views of a nozzle portion of a laser condensing device according to an embodiment of the present invention, and FIG. 2 is a cross-sectional view showing a damaged state of a conventional laser condenser. 1- Beam, 3... Lens, 7... Nozzle, 1o...
・Protective ring, 11...Base, 12...Adjustment screw 9゜Name of agent: Patent attorney Satoshi Nakao (Male)
O゛-ra king! Ma.

Claims (1)

【特許請求の範囲】[Claims] レーザ発振器より出力されたレーザビームを集光する集
光レンズを具備し、前記集光レンズと被加工物の間に前
記集光レンズにより集光されたレーザビームと同軸に、
前記被加工物に補助ガスを吹きつけるノズルを取付け、
かつ前記ノズルの先端部より0.2mm以上突出したリ
ング状もしくは突起状の交換可能なノズル先端保護装置
を前記ノズルに取付けたレーザ集光装置。
A condenser lens for condensing a laser beam output from a laser oscillator is provided, coaxially with the laser beam condensed by the condenser lens between the condenser lens and the workpiece,
Installing a nozzle that blows auxiliary gas onto the workpiece,
and a laser condensing device in which a replaceable nozzle tip protection device in the form of a ring or a protrusion that protrudes from the tip of the nozzle by 0.2 mm or more is attached to the nozzle.
JP25315285A 1985-11-12 1985-11-12 Laser beam converging device Pending JPS62112388A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP25315285A JPS62112388A (en) 1985-11-12 1985-11-12 Laser beam converging device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP25315285A JPS62112388A (en) 1985-11-12 1985-11-12 Laser beam converging device

Publications (1)

Publication Number Publication Date
JPS62112388A true JPS62112388A (en) 1987-05-23

Family

ID=17247244

Family Applications (1)

Application Number Title Priority Date Filing Date
JP25315285A Pending JPS62112388A (en) 1985-11-12 1985-11-12 Laser beam converging device

Country Status (1)

Country Link
JP (1) JPS62112388A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2017139486A (en) * 2017-04-04 2017-08-10 シンフォニアテクノロジー株式会社 Purge nozzle unit, load port, and stocker
JP2020074422A (en) * 2020-01-07 2020-05-14 シンフォニアテクノロジー株式会社 Purge nozzle unit and load port

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2017139486A (en) * 2017-04-04 2017-08-10 シンフォニアテクノロジー株式会社 Purge nozzle unit, load port, and stocker
JP2020074422A (en) * 2020-01-07 2020-05-14 シンフォニアテクノロジー株式会社 Purge nozzle unit and load port

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