JPH09192744A - Photoelectronic safety device for bending device - Google Patents
Photoelectronic safety device for bending deviceInfo
- Publication number
- JPH09192744A JPH09192744A JP80196A JP80196A JPH09192744A JP H09192744 A JPH09192744 A JP H09192744A JP 80196 A JP80196 A JP 80196A JP 80196 A JP80196 A JP 80196A JP H09192744 A JPH09192744 A JP H09192744A
- Authority
- JP
- Japan
- Prior art keywords
- light beam
- safety device
- safety
- die
- holders
- 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.)
- Withdrawn
Links
Landscapes
- Bending Of Plates, Rods, And Pipes (AREA)
Abstract
Description
【0001】[0001]
【発明の属する技術分野】本発明は、例えばプレスブレ
ーキ等の板金ワーク折曲加工装置用の光線式安全装置に
関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a light beam safety device for a sheet metal work bending apparatus such as a press brake.
【0002】[0002]
【従来の技術】従来の例えばプレスブレーキ等の板金ワ
ーク折曲加工装置においては、図5(a),(b)に示
すように、それぞれ加工用の上部/下部金型パンチ/ダ
イを備えた上部/下部テーブル間の危険範囲に作業者の
手が進入すると、安全装置としてこれを検知して機械の
運転を非常停止するよう、前記両テーブル間の両側より
2光軸以上の光線発信器及び受信器より成る光線式安全
装置が設けられていた。2. Description of the Related Art In a conventional sheet metal work bending apparatus such as a press brake, as shown in FIGS. 5 (a) and 5 (b), an upper / lower die punch / die for processing is provided, respectively. When a worker's hand enters the dangerous area between the upper and lower tables, it is detected as a safety device to stop the operation of the machine in an emergency. There was a light beam safety device consisting of a receiver.
【0003】図5において、1はプレスブレーキ、2/
3はそれぞれ上部/下部テーブル、4は、それぞれパン
チ/ダイ加工部からの安全距離までの前記危険距離範囲
(例えば250mm程度)を示す。また5/6はそれぞれ
光線の発信器/受信器で、7は複数の各光軸である。In FIG. 5, 1 is a press brake and 2 /
Reference numeral 3 indicates the upper / lower table, and 4 indicates the dangerous distance range (for example, about 250 mm) up to the safety distance from the punch / die processing unit. Reference numeral 5/6 is a light beam transmitter / receiver, and reference numeral 7 is a plurality of optical axes.
【0004】[0004]
【発明が解決しようとする課題】しかしながら、例えば
図6(a)にその一例を示すように、前記危険範囲4内
に作業者の手が入ってしまうような中央部に小さい切り
起し8のあるワーク(製品)W0 や、あるいは同図
(b)にその一例を示すように、左右にフランジ部9を
有するワークW1 において、例えば折曲線10部の曲げ
加工を行うときには、両フランジ9が光線(光軸)7を
遮断してしまうため、この種の従来の光線式安全装置
は、ワーク形状に制約があって安全装置としての機能を
果たすことができない場合があり、極めて使い勝手が悪
かった。However, as shown for example in FIG. 6 (a), a small cut-and-raised portion 8 is formed in the central portion where an operator's hand may enter the dangerous area 4. When a certain work (product) W 0 or a work W 1 having flange portions 9 on the left and right sides is bent, for example, when bending a 10-fold curve, as shown in FIG. Since it blocks the light beam (optical axis) 7, this type of conventional light beam safety device may not be able to function as a safety device due to restrictions on the work shape, which is extremely inconvenient. It was
【0005】本発明は、以上のような局面にかんがみて
なされたもので、前記図例のようなワークのサイズや形
状に制約されることのない、この種の機械の運転非常停
止用の光線式安全装置の提供を目的としている。The present invention has been made in view of the above situation, and a light beam for an emergency stop of a machine of this kind, which is not restricted by the size and shape of the work as shown in the above-mentioned example. The purpose is to provide a safety device.
【0006】[0006]
【課題を解決するための手段】このため、本発明におい
ては、折曲加工装置の金型の両側面に、それぞれ対面す
る光線発信器及び受信器の各ホルダ部材を配設すると共
に、さらに、前記各ホルダ部材はそれぞれ上下方向に摺
動自在に下方に弾性付勢するよう構成することにより、
前記目的を達成しようとするものである。Therefore, in the present invention, the holder members of the light transmitter and the receiver facing each other are arranged on both side surfaces of the mold of the bending apparatus, and further, By configuring each of the holder members so as to be elastically biased downward so as to be slidable in the vertical direction,
It is intended to achieve the above object.
【0007】[0007]
【作用】以上のような本発明により、ワークサイズ/形
状等により制約されることのない光線式安全装置が得ら
れる。According to the present invention as described above, it is possible to obtain a light beam type safety device which is not restricted by the work size / shape or the like.
【0008】[0008]
【発明の実施の形態】以下に本発明の実施の形態を、一
実施例に基づいて詳細に説明する:BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, an embodiment of the present invention will be described in detail based on an example:
【0009】[0009]
【実施例】図1に、本発明に係る光線式安全装置の一実
施例の要部斜視図、図2にその正面図、図3(a),
(b),(c)に、各発信器部及び受信器部の詳細説明
図を示す。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a perspective view of an essential part of an embodiment of a light beam type safety device according to the present invention, FIG. 2 is a front view thereof, FIG.
(B) and (c) show detailed explanatory diagrams of each transmitter section and receiver section.
【0010】(構成)本実施例は、図1,2に示すよう
に上部テーブル2の下部に取付けられた上部金型(パン
チ)Pの左右(X方向)に一本の光線7用の発信器5及
び受信器6の取付け、作業者の手等がこの光線7を遮断
した時に機械の非常停止を行うよう構成したものであ
り、図2,3に示すように発信器5及び受信器6は、金
型P内にコンパクトにまとめられて収納されている。(Structure) In this embodiment, as shown in FIGS. 1 and 2, one light beam 7 is emitted to the left and right (X direction) of the upper die (punch) P attached to the lower portion of the upper table 2. The device 5 and the receiver 6 are attached, and when the operator's hand or the like cuts off the light beam 7, an emergency stop of the machine is performed, and as shown in FIGS. Are compactly packed and housed in the mold P.
【0011】図3(a)は、それぞれ各発信器5及び受
信等6を保持するための発信器ホルダ10及び受信器ホ
ルダ12における発信器5及び受信器6の位置を示し、
例えば発信器ホルダ10は、(b),(c)図に示すよ
うに、発信器ホルダガイド11の凹部11aに対して、
それぞれ相補の凸部10aの嵌合により、一対の圧縮コ
イルばね14によりZ方向に上下に摺動可能に、下方に
弾性偏倚(付勢)されている。FIG. 3A shows the positions of the transmitter 5 and the receiver 6 in the transmitter holder 10 and the receiver holder 12 for holding the transmitters 5 and the receivers 6 respectively.
For example, the transmitter holder 10 is, as shown in FIGS.
By fitting the complementary protrusions 10a, the pair of compression coil springs 14 are elastically biased (biased) downward so that they can slide up and down in the Z direction.
【0012】パンチPの左右反対端部の受信器ホルダ1
2及び受信器ホルダガイド13の関係も、前記受信器5
側におけると全く同様の対称形に配設されており、図3
(c)に示すように、発信器ホルダ10または、受信器
ホルダ12の下端部がワークWに接触すると、ばね14
に抗して上方に引っ込められるよう構成されている。A receiver holder 1 at the opposite ends of the punch P.
2 and the receiver holder guide 13 are also related to the receiver 5
They are arranged in the same symmetrical shape as on the side, as shown in FIG.
As shown in (c), when the lower end of the transmitter holder 10 or the receiver holder 12 contacts the work W, the spring 14
It is configured so that it can be withdrawn upward against.
【0013】(動作)つぎに、本実施例の安全装置の動
作シーケンスを、図4に示すフローチャートに基づいて
説明する。この実施例のプレスブレーキ1は、図4右上
部に概要図を示すように、一対の油圧ラム15により、
下部テーブル3(ダイ側)が上昇する型式の図例であ
る。(Operation) Next, the operation sequence of the safety device of this embodiment will be described with reference to the flow chart shown in FIG. The press brake 1 of this embodiment has a pair of hydraulic rams 15 as shown in a schematic view in the upper right part of FIG.
It is an example of a model in which the lower table 3 (die side) rises.
【0014】ステップS1において、プレスブレーキ1
の運転が開始されて、ダイを有する下部テーブル3が上
昇するとき、ステップS2において作業者の手等により
図1〜図3(c)に示す光線7が遮断されているか否か
を検知し、遮断されていれば、ステップS3で直ちに非
常停止を行う。In step S1, the press brake 1
When the lower table 3 having the die is lifted after the operation of No. 3 is started, it is detected in step S2 whether or not the light beam 7 shown in FIGS. If it is cut off, an emergency stop is immediately performed in step S3.
【0015】一方、遮断されていない場合は、ステップ
S4において、金型パンチ及びダイがワークWを挟み込
む位置から所定の例えば8mm手前の位置でこの安全装置
を無効とするように構成されている。上記距離8mmは、
もう人の指に入らない距離寸法として設定されたもので
あり、次いで、ステップS5において、ワークWが光線
7を遮断し、その後、ワークWは、所定の曲げ作業が行
われ、その終了後、ステップS6で、下部テーブル3が
再下降するよう作動してその工程を終了する。On the other hand, if not interrupted, in step S4, the safety device is disabled at a position, for example, 8 mm before the position where the die punch and the die sandwich the work W. The distance 8mm is
It is set as a distance dimension that does not enter the human finger any more, and then, in step S5, the work W blocks the light beam 7, and then the work W is subjected to a predetermined bending work, and after that, In step S6, the lower table 3 is operated so as to descend again, and the process ends.
【0016】(作用)以上、説明したように、従来は、
図5に示したように金型中心線より、危険領域4に対す
る安全距離だけ離れた位置で検出用光線7を発信してい
たため、前記図6(a),(b)に示したように、中央
部に小さい切り起し部8があったり、または小さくて危
険領域に作業者の手が入ってしまうワークW0 、もしく
は左右両側にフランジ部9が立設されたワークW1 の場
合には、種々の不都合が生じたか、以上のような本実施
例においては、金型に発信器5、受信器6を取付けて、
ワークWの曲げ線上で検知用光線7を出すよう構成した
ため、いかなる曲げ加工でも曲げ線上にフランジや切り
起しはあり得ず、小さいワークを曲げても、手が光線を
遮断しないので、ワークや製品の寸法や形状によって、
従来のような制約を受けることがなくなる。(Operation) As described above, conventionally,
As shown in FIGS. 6 (a) and 6 (b), since the detection light beam 7 was emitted at a position separated from the mold center line by a safety distance from the mold center line as shown in FIG. In the case of a work W 0 having a small cut-and-raised part 8 in the center, or a work W 0 that is too small to put an operator's hand in the dangerous area, or a work W 1 in which flanges 9 are erected on both left and right sides If various inconveniences have occurred, in the above embodiment, the transmitter 5 and the receiver 6 are attached to the mold,
Since the detection light beam 7 is emitted on the bending line of the work W, there is no flange or cut-and-raising on the bending line in any bending process, and even if a small work is bent, the hand does not block the light beam. Depending on the size and shape of the product,
There will be no restrictions as in the past.
【0017】(他の実施例)なお、前記実施例の金型へ
の各発信器、受信器の取付け方法は、前記各図例のみに
限定されるものでなく、種々の変形態様を採用し得るこ
とはもちろんである。(Other Embodiments) The method of attaching the transmitters and receivers to the mold of the above-described embodiment is not limited to the above-mentioned respective examples, and various modifications are adopted. Of course to get.
【0018】[0018]
【発明の効果】以上、説明したように、本発明によれ
ば、折曲加工装置の金型の曲げ線上に人体検知用光線を
発するよう発信器及び受信器を配設したため、ワークの
寸法/形状等に制約されることなく、金型間に手を挟む
危険性を防止することができるようになった。As described above, according to the present invention, since the transmitter and the receiver are arranged so as to emit the human body detecting light beam on the bending line of the mold of the bending apparatus, the size of the workpiece / It is now possible to prevent the risk of pinching hands between molds without being restricted by the shape or the like.
【図1】 実施例の要部斜視図FIG. 1 is a perspective view of a main part of an embodiment.
【図2】 実施例の要部正面図FIG. 2 is a front view of a main part of the embodiment.
【図3】 各発信器部及び受信器部の詳細説明図FIG. 3 is a detailed explanatory diagram of each transmitter unit and receiver unit.
【図4】 実施例の動作シーケンスフローチャートFIG. 4 is an operation sequence flowchart of the embodiment.
【図5】 従来例の光線式安全装置FIG. 5: Light beam safety device of a conventional example
【図6】 従来の制約ワーク例FIG. 6 Example of conventional constraint work
1 プレスブレーキ 2/3 上部/下部テーブル 4 危険範囲 5 発信器 6 受信器 7 光線 8 切り起し 9 フランジ部 10 発信器ホルダ 10a 凸部 11 発信器ホルダガイド 11a 凹部 12 受信器ホルダ 13 受信器ホルダガイド 14 ばね 15 油圧ラム W0 ,W1 ,W ワーク P パンチ (金型)1 Press Brake 2/3 Upper / Lower Table 4 Hazardous Area 5 Transmitter 6 Receiver 7 Ray 8 Cutting and Raising 9 Flange 10 Transmitter Holder 10a Convex 11 Transmitter Holder Guide 11a Recess 12 Receiver Holder 13 Receiver Holder Guide 14 Spring 15 Hydraulic ram W 0 , W 1 , W Work P Punch (die)
Claims (2)
れ対面する光線発信器及び受信器の各ホルダ部材を配設
したことを特徴とする折曲加工装置の光線式安全装置。1. A light beam safety device for a bending machine, wherein holder members for a light beam transmitter and a receiver, which face each other, are provided on both sides of a mold of the bending machine.
摺動自在に下方に弾性付勢されたことを特徴とする請求
項1記載の折曲加工装置の光線式安全装置。2. The light beam safety device for a bending apparatus according to claim 1, wherein each of the holder members is elastically biased downward so as to be slidable in the vertical direction.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP80196A JPH09192744A (en) | 1996-01-08 | 1996-01-08 | Photoelectronic safety device for bending device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP80196A JPH09192744A (en) | 1996-01-08 | 1996-01-08 | Photoelectronic safety device for bending device |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH09192744A true JPH09192744A (en) | 1997-07-29 |
Family
ID=11483797
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP80196A Withdrawn JPH09192744A (en) | 1996-01-08 | 1996-01-08 | Photoelectronic safety device for bending device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH09192744A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1319886A3 (en) * | 2001-12-13 | 2004-11-17 | Fiessler Elektronik OHG | Protective device for machines such as bending presses, cutting machines, punching machines or the like |
CN107442633A (en) * | 2017-09-20 | 2017-12-08 | 青岛万沅金属制品有限公司 | A kind of stamping machine photoelectric safety protector |
AT519646B1 (en) * | 2017-03-09 | 2018-09-15 | Trumpf Maschinen Austria Gmbh & Co Kg | Safety system for a manufacturing plant |
JP2020179402A (en) * | 2019-04-24 | 2020-11-05 | Jfeエンジニアリング株式会社 | Safety device for press machine, and press machine with safety device |
-
1996
- 1996-01-08 JP JP80196A patent/JPH09192744A/en not_active Withdrawn
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1319886A3 (en) * | 2001-12-13 | 2004-11-17 | Fiessler Elektronik OHG | Protective device for machines such as bending presses, cutting machines, punching machines or the like |
AT519646B1 (en) * | 2017-03-09 | 2018-09-15 | Trumpf Maschinen Austria Gmbh & Co Kg | Safety system for a manufacturing plant |
AT519646A4 (en) * | 2017-03-09 | 2018-09-15 | Trumpf Maschinen Austria Gmbh & Co Kg | Safety system for a manufacturing plant |
CN107442633A (en) * | 2017-09-20 | 2017-12-08 | 青岛万沅金属制品有限公司 | A kind of stamping machine photoelectric safety protector |
CN107442633B (en) * | 2017-09-20 | 2019-09-24 | 青岛万沅金属制品有限公司 | A kind of press machine photoelectric safety protective device |
JP2020179402A (en) * | 2019-04-24 | 2020-11-05 | Jfeエンジニアリング株式会社 | Safety device for press machine, and press machine with safety device |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
A761 | Written withdrawal of application |
Effective date: 20041215 Free format text: JAPANESE INTERMEDIATE CODE: A761 |