JP2001276993A - Laser beam transmitting equipment - Google Patents

Laser beam transmitting equipment

Info

Publication number
JP2001276993A
JP2001276993A JP2000094776A JP2000094776A JP2001276993A JP 2001276993 A JP2001276993 A JP 2001276993A JP 2000094776 A JP2000094776 A JP 2000094776A JP 2000094776 A JP2000094776 A JP 2000094776A JP 2001276993 A JP2001276993 A JP 2001276993A
Authority
JP
Japan
Prior art keywords
fiber
laser
laser light
laser beam
connector
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
JP2000094776A
Other languages
Japanese (ja)
Other versions
JP4311856B2 (en
Inventor
Yukitsugu Kimura
幸嗣 木村
Takeshi Satake
武史 佐竹
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 Cable Industries Ltd
Original Assignee
Mitsubishi Cable Industries 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 Mitsubishi Cable Industries Ltd filed Critical Mitsubishi Cable Industries Ltd
Priority to JP2000094776A priority Critical patent/JP4311856B2/en
Publication of JP2001276993A publication Critical patent/JP2001276993A/en
Application granted granted Critical
Publication of JP4311856B2 publication Critical patent/JP4311856B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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  • Mechanical Coupling Of Light Guides (AREA)
  • Laser Beam Processing (AREA)
  • Lasers (AREA)

Abstract

PROBLEM TO BE SOLVED: To provide a laser beam transmitting equipment capable of miniaturizing an equipment and facilitating a connector installing operation. SOLUTION: The laser beam transmitting equipment is provided with an illuminant 6 producing a high energy laser beam, a laser beam transmitting fiber 1 to guide a laser beam from the illuminant, a laser head 3 in which a laser beam led by the laser beam transmitting fiber is irradiated to a processed object, and a wire breaking detection fiber monitoring a reflected light from the laser head. Further, the laser beam transmitting fiber and the wire breaking detection fiber are attached to the laser head by means of a single connector. Consequently, a miniaturization of the equipment and facilitation of terminal processing work can be achieved.

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【0001】[0001]

【発明が属する技術分野】本発明は、YAGレーザなど
のような高エネルギーのレーザ光を利用して被加工物を
加工する場合等に使用されるレーザ光伝送装置に関す
る。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a laser light transmission device used for processing a workpiece using a high-energy laser beam such as a YAG laser.

【0002】[0002]

【従来の技術】従来、高エネルギーのレーザ光を被加工
物に出射して、溶接、穴あけ、切断等の各種の加工が行
われている。このような加工などに用いられるレーザ光
伝送装置として、図3に示す構成のものがある。
2. Description of the Related Art Conventionally, various processes such as welding, drilling, and cutting are performed by emitting high-energy laser light to a workpiece. FIG. 3 shows an example of a laser beam transmission device used for such processing.

【0003】このレーザ光伝送装置は、YAGレーザや
エキシマレーザなどのような高エネルギーのレーザ光を
発生する光源6、この光源からのレーザ光を導くレーザ
光伝送用ファイバ1、およびこのレーザ光伝送用ファイ
バ1で導かれたレーザ光を被加工物に向けて出射するレ
ーザヘッド3を備えている。
The laser light transmission device includes a light source 6 for generating a high energy laser light such as a YAG laser or an excimer laser, a laser light transmission fiber 1 for guiding the laser light from the light source, and a laser light transmission fiber. And a laser head 3 for emitting the laser light guided by the optical fiber 1 toward the workpiece.

【0004】上記構成において、光源6からのレーザ光
は、レーザ光伝送用ファイバ1、レーザヘッド3を通っ
て被加工物に出射されて、溶接、穴あけ、切断等の各種
の加工が行われる。
In the above configuration, the laser light from the light source 6 is emitted to the workpiece through the laser light transmission fiber 1 and the laser head 3, and various processes such as welding, drilling, and cutting are performed.

【0005】ところでレーザ光伝送用ファイバ1が断線
した場合など、加工がうまく行われなかったり、光ファ
イバの断線個所で問題が発生する虞があり、これを防止
するため、断線検知用のモニタ手段が設けられ、断線が
検知された場合、レーザ光の発生を停止させるなどの処
置が講じられていた。
[0005] When the laser light transmission fiber 1 is broken, for example, there is a risk that processing may not be performed properly or a problem may occur at a broken portion of the optical fiber. When a disconnection is detected, measures such as stopping the generation of laser light have been taken.

【0006】図3においては、断線検知用ファイバ2を
レーザ光伝送用ファイバ1に近接して設け、レーザ光伝
送用ファイバ1からレーザヘッド3を通過して被加工物
に出射されるレーザ光の一部がレーザヘッド3のレンズ
5より反射されることを利用して、その反射光を断線検
知用ファイバ2を通してモニタ装置7に取り込んでモニ
タするようにしていた。
In FIG. 3, a disconnection detecting fiber 2 is provided close to a laser light transmitting fiber 1, and a laser beam emitted from the laser light transmitting fiber 1 through a laser head 3 to a workpiece. Utilizing that part of the light is reflected from the lens 5 of the laser head 3, the reflected light is taken into the monitor device 7 through the disconnection detecting fiber 2 and monitored.

【0007】[0007]

【発明が解決しようとする課題】ところで、従来のレー
ザ光伝送装置においては、レーザ光伝送用ファイバと断
線検知用ファイバとは、レーザ光伝送用ファイバ用コネ
クタ40と断線検知用ファイバ用コネクタ41とそれぞ
れ別々のコネクタに取り付けられ、端末処理されてレー
ザヘッド3に取り付けられていた。
By the way, in the conventional laser light transmission device, the laser light transmission fiber and the disconnection detection fiber are the same as the laser light transmission fiber connector 40 and the disconnection detection fiber connector 41. Each of them is attached to a separate connector, is subjected to terminal treatment, and is attached to the laser head 3.

【0008】このため、装置が大型化し、またコネクタ
を取り付ける際の端末処理作業も手間がかかるものとな
っていた。
For this reason, the size of the apparatus has been increased, and the terminal processing work for attaching the connector has been troublesome.

【0009】本発明は、上記問題点を解決するためにな
されたもので、レーザ伝送用ファイバと断線検知用ファ
イバとを単一のコネクタに取り付けて端末処理し、レー
ザヘッドに取り付けることで、装置の小型化とコネクタ
取付作業の容易化を図ったレーザ光伝送装置を提供する
ことを目的とする。
SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and a laser transmission fiber and a disconnection detection fiber are attached to a single connector to perform terminal processing, and are attached to a laser head. It is an object of the present invention to provide a laser light transmission device in which the size of the device is reduced and the connector mounting operation is facilitated.

【0010】[0010]

【課題を解決するための手段】本発明は、高エネルギー
のレーザ光を発生する光源と、前記光源からのレーザ光
を導くレーザ光伝送用ファイバと、前記レーザ光伝送用
ファイバで導かれたレーザ光を被加工物に向けて出射す
るレーザヘッドと、前記レーザヘッドからの反射光をモ
ニタする断線検知用ファイバとを備えてなるレーザ光伝
送装置において、前記レーザ光伝送用ファイバと前記断
線検知用ファイバとが単一のコネクタを介してレーザヘ
ッドに取り付けられている。
SUMMARY OF THE INVENTION The present invention is directed to a light source for generating high energy laser light, a laser light transmission fiber for guiding the laser light from the light source, and a laser light guided by the laser light transmission fiber. In a laser light transmission device including a laser head that emits light toward a workpiece and a disconnection detection fiber that monitors reflected light from the laser head, the laser light transmission fiber and the disconnection detection fiber The fiber is attached to the laser head via a single connector.

【0011】[0011]

【作用】レーザ光伝送用ファイバと断線検知用ファイバ
とが、単一のコネクタによってレーザーヘッドに取り付
けられることにより、装置が小型化し、コネクタを取り
付ける端末処理作業が容易になる。
Since the laser light transmitting fiber and the disconnection detecting fiber are attached to the laser head by a single connector, the size of the apparatus is reduced, and the terminal processing work for attaching the connector is facilitated.

【0012】[0012]

【発明の実施の形態】図1は本発明に係るレーザ光伝送
装置の実施形態を示す。
FIG. 1 shows an embodiment of a laser light transmission device according to the present invention.

【0013】同図において、1はレーザ光伝送用ファイ
バ、2は断線検知用ファイバ、3はレーザヘッド、4コ
ネクタは、5はレンズ、6は光源である。
In FIG. 1, reference numeral 1 denotes a fiber for transmitting laser light, 2 denotes a fiber for detecting disconnection, 3 denotes a laser head, 4 denotes a connector, 5 denotes a lens, and 6 denotes a light source.

【0014】このレーザ光伝送装置は、YAGレーザや
エキシマレーザなどのような高エネルギーのレーザ光を
発生する光源6、この光源6からのレーザ光を導くレー
ザ光伝送用ファイバ1、およびこのレーザ光伝送用ファ
イバ1で導かれたレーザ光を被加工物に向けて出射する
レーザヘッド3、このレーザヘッド3からの反射光をモ
ニタする断線検知用ファイバ2を備えている。そして、
レーザ光伝送用ファイバ1と断線検知用ファイバ2と
は、単一のコネクタ4を介してレーザヘッド3に取り付
けられている。
This laser light transmission device includes a light source 6 for generating high-energy laser light such as a YAG laser or an excimer laser, a laser light transmission fiber 1 for guiding the laser light from the light source 6, and the laser light. A laser head 3 for emitting laser light guided by a transmission fiber 1 toward a workpiece, and a disconnection detecting fiber 2 for monitoring reflected light from the laser head 3 are provided. And
The laser light transmitting fiber 1 and the disconnection detecting fiber 2 are attached to the laser head 3 via a single connector 4.

【0015】図2は、本発明に用いられるコネクタ4の
断面図を示す。コネクタ4は、レーザ光伝送用ファイバ
挿通孔と断線検知用ファイバ挿通孔とを有している。
FIG. 2 is a sectional view of the connector 4 used in the present invention. The connector 4 has a laser light transmission fiber insertion hole and a disconnection detection fiber insertion hole.

【0016】レーザ光伝送用ファイバ1は、コネクタ4
の略中央部でインナースリーブ11により固定され、ま
たビス15により、コネクタ本体10に固定されてい
る。インナースリーブ11は、スリーブ本体20とナッ
ト21とからなり、ナットの締付けによりファイバがか
しめ固定される。レーザ光伝送用ファイバ1の先端部分
の被覆は剥かれており,裸ファイバとなっている。ファ
イバの先端面は研磨されており、コネクタ4の先端面と
略面一とされている。
The fiber 1 for transmitting laser light has a connector 4
Is fixed to the connector main body 10 by an inner sleeve 11 at a substantially central portion thereof and by a screw 15. The inner sleeve 11 includes a sleeve body 20 and a nut 21, and the fiber is caulked and fixed by tightening the nut. The coating on the tip of the laser light transmission fiber 1 is stripped off, and the fiber is a bare fiber. The distal end surface of the fiber is polished and is substantially flush with the distal end surface of the connector 4.

【0017】断線検知用ファイバ2は挿通孔に挿通さ
れ、先端面はコネクタ先端部のエアギャップ面と略面一
とされている。また断線検知用ファイバ2の先端部には
薄肉のSUSパイプ(図事せず)が被せられており、フ
ァイバとパイプとは、接着剤で接着されている。そし
て、ビス14によってコネクタ本体10に固定されてい
る。
The disconnection detecting fiber 2 is inserted through the insertion hole, and the distal end surface is substantially flush with the air gap surface at the distal end of the connector. Further, a thin SUS pipe (not shown) is covered on the distal end of the disconnection detecting fiber 2, and the fiber and the pipe are bonded with an adhesive. And it is being fixed to the connector main body 10 by the screw 14.

【0018】コネクタの基端部においては、レーザ光伝
送用ファイバ1と断線検知用ファイバ2とは、SUS可
とう管13に挿入されており、SUS可とう管13は、
ビス16によりリング12と固定され、さらにビス17
によりリング12がコネクタ本体10に固定されてい
る。
At the base end of the connector, the laser light transmitting fiber 1 and the disconnection detecting fiber 2 are inserted into a SUS flexible tube 13.
It is fixed to the ring 12 by screws 16 and
Thus, the ring 12 is fixed to the connector body 10.

【0019】そして、このコネクタ4がレーザーヘッド
3に取り付けられる。
Then, the connector 4 is attached to the laser head 3.

【0020】上記の構成では、レーザ光伝送用ファイバ
と断線検知用ファイバとが、単一のコネクタによってレ
ーザーヘッドに取り付けられているので、装置が小型化
し、コネクタを取り付ける端末処理作業が容易になる。
In the above configuration, since the laser light transmitting fiber and the disconnection detecting fiber are attached to the laser head by a single connector, the apparatus is downsized and the terminal processing work for attaching the connector is facilitated. .

【0021】レーザ光伝送用ファイバ1は、通常の石英
系光ファイバよりもコア径を大きく設定した、いわゆる
石英系大口径光ファイバでできており、また断線検知用
ファイバ2も、レーザ光伝送用ファイバと同様に、大口
径光ファイバでできている。
The laser light transmitting fiber 1 is made of a so-called quartz-based large-diameter optical fiber whose core diameter is set to be larger than that of a normal quartz-based optical fiber. Like fiber, it is made of large diameter optical fiber.

【0022】上記の構成により、光源6からのレーザ光
は、レーザ光伝送用ファイバ1、レーザヘッド3を通っ
て被加工物に出射されて、溶接、穴あけ、切断等の各種
の加工が行われる。また出射されるレーザ光の一部がレ
ーザヘッド3のレンズ5より反射され、その反射光が断
線検知用ファイバ2を通してモニタ装置7に取り込ま
れ、断線が検知される。
With the above configuration, the laser light from the light source 6 is emitted to the workpiece through the laser light transmission fiber 1 and the laser head 3, and various processes such as welding, drilling, and cutting are performed. . A part of the emitted laser light is reflected by the lens 5 of the laser head 3, and the reflected light is taken into the monitor device 7 through the disconnection detecting fiber 2, and the disconnection is detected.

【0023】[0023]

【発明の効果】以上説明した様に、本発明のレーザ光伝
送装置は、レーザ光伝送用光ファイバと断線検知用ファ
イバとを単一のコネクタによってレーザーヘッドに取り
付けているため、装置が小型化し、コネクタを取り付け
る端末処理作業の容易化が図れる。
As described above, in the laser light transmission device of the present invention, the optical fiber for laser light transmission and the fiber for disconnection detection are attached to the laser head by a single connector. In addition, the terminal processing work for attaching the connector can be facilitated.

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

【図1】本発明のレーザ光伝送装置の構成図である。FIG. 1 is a configuration diagram of a laser light transmission device of the present invention.

【図2】コネクタの断面図である。FIG. 2 is a cross-sectional view of the connector.

【図3】従来のレーザ光伝送装置の構成図である。FIG. 3 is a configuration diagram of a conventional laser light transmission device.

【符号の説明】[Explanation of symbols]

1 レーザ光伝送用光ファイバ 2 断線検知用モニタファイバ 3 レーザヘッド 4 コネクタ 5 レンズ 6 光源 7 モニタ装置 10 コネクタ本体 11 インナースリーブ DESCRIPTION OF SYMBOLS 1 Optical fiber for laser beam transmission 2 Monitor fiber for disconnection detection 3 Laser head 4 Connector 5 Lens 6 Light source 7 Monitor device 10 Connector body 11 Inner sleeve

Claims (1)

【特許請求の範囲】[Claims] 【請求項1】 高エネルギーのレーザ光を発生する光源
と、前記光源からのレーザ光を導くレーザ光伝送用ファ
イバと、前記レーザ光伝送用ファイバで導かれたレーザ
光を被加工物に向けて出射するレーザヘッドと、前記レ
ーザヘッドからの反射光をモニタする断線検知用ファイ
バとを備えてなるレーザ光伝送装置において、前記レー
ザ光伝送用ファイバと前記断線検知用ファイバとが単一
のコネクタを介してレーザヘッドに取り付けられている
ことを特徴とするレーザ光伝送装置。
1. A light source for generating high-energy laser light, a laser light transmission fiber for guiding the laser light from the light source, and a laser light guided by the laser light transmission fiber directed to a workpiece. In a laser light transmission device including a laser head that emits light and a disconnection detection fiber that monitors reflected light from the laser head, the laser light transmission fiber and the disconnection detection fiber have a single connector. A laser light transmission device which is attached to a laser head via a laser beam.
JP2000094776A 2000-03-30 2000-03-30 Laser light transmission device Expired - Lifetime JP4311856B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2000094776A JP4311856B2 (en) 2000-03-30 2000-03-30 Laser light transmission device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2000094776A JP4311856B2 (en) 2000-03-30 2000-03-30 Laser light transmission device

Publications (2)

Publication Number Publication Date
JP2001276993A true JP2001276993A (en) 2001-10-09
JP4311856B2 JP4311856B2 (en) 2009-08-12

Family

ID=18609769

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2000094776A Expired - Lifetime JP4311856B2 (en) 2000-03-30 2000-03-30 Laser light transmission device

Country Status (1)

Country Link
JP (1) JP4311856B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20230334126A1 (en) * 2015-02-12 2023-10-19 Glowforge Inc. Multi-Function Computer Numerically Controlled Machine

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10509390B2 (en) 2015-02-12 2019-12-17 Glowforge Inc. Safety and reliability guarantees for laser fabrication
WO2018098397A1 (en) 2016-11-25 2018-05-31 Glowforge Inc. Calibration of computer-numerically-controlled machine
WO2018098398A1 (en) 2016-11-25 2018-05-31 Glowforge Inc. Preset optical components in a computer numerically controlled machine
WO2018098399A1 (en) 2016-11-25 2018-05-31 Glowforge Inc. Controlled deceleration of moveable components in a computer numerically controlled machine

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20230334126A1 (en) * 2015-02-12 2023-10-19 Glowforge Inc. Multi-Function Computer Numerically Controlled Machine
US11995159B2 (en) * 2015-02-12 2024-05-28 Glowforge, Inc. Multi-function computer numerically controlled machine

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