JPH0747211B2 - Method and apparatus for preventing welding of wire type welding electrode in case of power failure in arc welding - Google Patents
Method and apparatus for preventing welding of wire type welding electrode in case of power failure in arc weldingInfo
- Publication number
- JPH0747211B2 JPH0747211B2 JP6773987A JP6773987A JPH0747211B2 JP H0747211 B2 JPH0747211 B2 JP H0747211B2 JP 6773987 A JP6773987 A JP 6773987A JP 6773987 A JP6773987 A JP 6773987A JP H0747211 B2 JPH0747211 B2 JP H0747211B2
- Authority
- JP
- Japan
- Prior art keywords
- relay
- storage battery
- buffer storage
- motor
- welding
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K9/00—Arc welding or cutting
- B23K9/12—Automatic feeding or moving of electrodes or work for spot or seam welding or cutting
- B23K9/124—Circuits or methods for feeding welding wire
- B23K9/125—Feeding of electrodes
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Mechanical Engineering (AREA)
- Arc Welding Control (AREA)
- Pressure Welding/Diffusion-Bonding (AREA)
Description
【発明の詳細な説明】 発明の目的 本発明は、電源部を通じて母材およびワイヤ型の溶接電
極の間にアークを発生せしめるとともに、溶接電極を電
源部に接続された直流モータによって駆動される溶接電
極送りローラを通じて送り出し、溶接電極を溶融し、母
材の継目部に溶着せしめて溶接を行うアーク溶接におい
て、電源部に異常が生じた時に溶接電極が溶着すること
を防止するための方法に関する。DETAILED DESCRIPTION OF THE INVENTION An object of the present invention is to generate an arc between a base metal and a wire-type welding electrode through a power source unit, and to perform welding driven by a DC motor connected to the power source unit. The present invention relates to a method for preventing welding electrodes from being welded when an abnormality occurs in a power supply unit in arc welding in which a welding electrode is fed out, melted and welded to a seam portion of a base material to perform welding.
ワイヤ型の溶接電極を使用するアーク溶接の場合、特に
サブマージド・アーク溶接の場合には、溶接電極が、直
流モータによって駆動される溶接電極送りローラによ
り、溶接浴中に送り出されるようになっている。In the case of arc welding using a wire type welding electrode, particularly in the case of submerged arc welding, the welding electrode is fed into the welding bath by a welding electrode feed roller driven by a DC motor. .
溶接が終了してモータが電源部から切り離されても、回
転モーメントが原因で溶接電極送り出し系はすぐに停止
しない。このため、一般にアーク発生のための電源部か
らの電圧供給が時間を遅らせて停止されると同時に、適
当な切替え操作がなされることによって、溶接電極の溶
融が阻止され、温度の低下した溶接浴中における溶接ワ
イヤの溶着が防止される。Even if the motor is disconnected from the power supply after welding is completed, the welding electrode delivery system does not stop immediately due to the rotation moment. For this reason, generally, the voltage supply from the power supply unit for generating an arc is stopped with a time delay, and at the same time, an appropriate switching operation is performed to prevent melting of the welding electrode and reduce the temperature of the welding bath. Welding of the welding wire inside is prevented.
しかし、電源部に異常が生じると、このような操作を行
うことはもはや不可能となる。However, if an abnormality occurs in the power supply unit, it becomes impossible to perform such an operation.
したがって、本発明は、電源部に異常が発生した時、溶
接電極を溶接浴からすぐに、かつ一時的に退避せしめ、
低温の溶接浴中における溶接電極の溶着を防止すること
を目的とする。Therefore, the present invention, when an abnormality occurs in the power source, immediately and temporarily retract the welding electrode from the welding bath,
The purpose is to prevent welding electrode welding in a low-temperature welding bath.
発明の構成および効果 上記目的を達成するため、本発明は、電源部を通じて母
材およびワイヤ型の溶接電極の間にアークを発生せしめ
るとともに、溶接電極を電源部に接続された直流モータ
によって駆動される溶接電極送りローラを通じて送り出
し、溶接電極を溶融し、母材の継目部に溶着せしめて溶
接を行うアーク溶接において、電源部に異常が生じた時
に溶接電極が溶着することを防止するための方法であっ
て、電源部に接続された緩衝蓄電池と、直流モータを電
源部または緩衝蓄電池に選択的に接続する継電器回路を
設け、電源部に異常が生じた時、直流モータを緩衝蓄電
池に接続し、同時に直流モータの回転の向きを反転せし
め、所定時間経過後、直流モータを緩衝蓄電池から切り
離すことを特徴とする方法を構成したものである。In order to achieve the above object, the present invention generates an arc between a base material and a wire-type welding electrode through a power supply unit, and the welding electrode is driven by a DC motor connected to the power supply unit. A method for preventing welding electrodes from being welded when an abnormality occurs in the power supply in arc welding, in which the welding electrodes are sent out through a welding electrode feed roller, melted, and are welded to the base material seams. In addition, a buffer battery connected to the power supply unit and a relay circuit for selectively connecting the DC motor to the power supply unit or the buffer storage battery are provided, and the DC motor is connected to the buffer storage battery when an abnormality occurs in the power supply unit. At the same time, the direction of rotation of the DC motor is reversed, and the DC motor is disconnected from the buffer storage battery after a predetermined time has elapsed.
また、本発明は、上記目的を達成するため、電源部を通
じて母材およびワイヤ型の溶接電極の間にアークを発生
せしめるとともに、溶接電極を電源部に接続された直流
モータによって駆動される溶接電極送りローラを通じて
送り出し、溶接電極を溶融し、母材の継目部に溶着せし
めて溶接を行うアーク溶接機において、電源部に異常が
生じた時に溶接電極が溶着することを防止するための装
置であって、電源部に接続された緩衝蓄電池と、直流モ
ータを電源部または緩衝蓄電池選択的に接続するととも
に、直流モータを緩衝蓄電池に接続した時には所定時間
経過後に直流モータを緩衝蓄電池から切り離す継電器回
路を有しており、継電器回路は、さらに、励磁または消
磁によって直流モータを電源部または緩衝蓄電池に選択
的に接続する第１の継電器と、電源部に接続された第２
の継電器と、第２の継電器に接続され、第２の継電器の
励磁または消磁によって電源部に接続されまたは電源部
から切り離される第１および第２の緩動継電器と、第１
の緩動継電器に接続され、第１の緩動継電器の励磁また
は消磁によって緩衝蓄電池に接続されまたは緩衝蓄電池
から切り離される第３の継電器であって、直流モータの
電機子が、第３継電器の励磁または消磁によって緩衝蓄
電池に接続されまたは緩衝蓄電池から切り離されるよう
に接続されたものと、第２の緩衝継電器に接続され、第
２の緩衝継電器の励磁または消磁によって緩衝蓄電池に
接続されまたは緩衝蓄電池から切り離される第４の継電
器であって、直流モータの界磁コイルが、第４の継電器
の励磁または消磁によって緩衝蓄電池に接続されまたは
緩衝蓄電池から切り離されるように接続されたものから
なっており、電源部に異常が生じた時、第１の継電器が
消磁されて直流モータは緩衝蓄電池に接続され、同時に
直流モータの回転の向きが反転せしめられ、その後第２
の継電器が消磁されて第１および第２の緩衝継電器が電
源部から切り離されて所定時間経過後に消磁され、第３
の継電器が緩衝電池から切り離されて消磁されることに
よって直流モータの電機子が緩衝蓄電池から切り離さ
れ、同時に第４の継電器が緩衝蓄電池から切り離されて
消磁されることによって直流モータの界磁コイルが緩衝
蓄電池から切り離されることを特徴とする装置を構成し
たものである。Further, in order to achieve the above object, the present invention generates an arc between a base material and a wire-type welding electrode through a power source, and the welding electrode is driven by a DC motor connected to the power source. In an arc welder that sends out through a feed roller, melts the welding electrode, welds it to the joint part of the base material and performs welding, it is a device to prevent welding electrode welding when an abnormality occurs in the power supply part. And a buffer battery connected to the power supply unit and the DC motor are selectively connected to the power supply unit or the buffer storage battery, and a relay circuit that disconnects the DC motor from the buffer storage battery after a lapse of a predetermined time when the DC motor is connected to the buffer storage battery. The relay circuit further includes a first connection for selectively connecting the DC motor to the power supply section or the buffer storage battery by excitation or demagnetization. A relay, a second connected to the power supply unit
And a first and second slow-moving relays, which are connected to the second relay and are connected to or disconnected from the power supply unit by excitation or demagnetization of the second relay,
A slow relay connected to the buffer relay battery by excitating or demagnetizing the first slow relay, or separated from the buffer battery, wherein the armature of the DC motor is the Or connected to the buffer storage battery by demagnetization or connected so as to be separated from the buffer storage battery, and connected to the second buffer relay, connected to the buffer storage battery by excitation or demagnetization of the second buffer relay, or from the buffer storage battery A fourth relay to be disconnected, which comprises a field coil of a DC motor connected to or disconnected from the buffer storage battery by excitation or demagnetization of the fourth relay, and a power supply. When an abnormality occurs in the section, the first relay is demagnetized and the DC motor is connected to the buffer battery, and at the same time the DC motor rotates. Orientation is made to inversion, then the second
Is degaussed, the first and second buffer relays are disconnected from the power supply unit, and degaussed after a predetermined time has passed,
When the relay of is disconnected from the buffer battery and demagnetized, the armature of the DC motor is disconnected from the buffer battery, and at the same time, the fourth relay is disconnected from the buffer battery and demagnetized, so that the field coil of the DC motor becomes The device is configured to be separated from the buffer storage battery.
以下、添付図面を参照して本発明の好ましい実施例につ
いて説明する。Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings.
図面は、本発明による装置の１実施例を回路図に示した
ものである。図面において、（図示はしない）電源部を
通じて、ワイヤ型の溶接電極12と母材14の間にアークが
発生するようになっている。溶接電極12は、アーク溶接
に際し、電源部に接続された直流モータ１によって駆動
される溶接電極送りローラ13を通じて、溶接電極スプー
ル11から送り出され、アークによって溶融され、母材14
の継目部に溶着し、アーク溶接が行われるようになって
いる。The drawing shows a circuit diagram of an embodiment of the device according to the invention. In the drawing, an arc is generated between the wire-type welding electrode 12 and the base material 14 through a power source (not shown). During arc welding, the welding electrode 12 is fed from the welding electrode spool 11 through the welding electrode feed roller 13 driven by the DC motor 1 connected to the power source, melted by the arc, and the base metal 14
It is welded to the seam of and the arc welding is performed.
電源部から電圧供給線UNには、充電装置３が接続され、
充電装置３には緩衝蓄電池４が接続されている。The voltage supply line U N from the power supply unit, the charging unit 3 is connected,
A buffer storage battery 4 is connected to the charging device 3.
電圧供給線UNには、さらに、励磁または消磁によって直
流モータ１を電源部または緩衝蓄電池４に選択的に接続
する第１の継電器５と、接点5.1〜5.4を介して直流モー
タ１の電機子および界磁コイルに電圧を供給する溶接制
御装置２とが接続されている。The voltage supply line U N, further, the first and relay 5, the armature of the DC motor 1 through a contact 5.1-5.4 to selectively connect the DC motor 1 by the excitation or demagnetization to the power supply unit or buffer battery 4 And a welding controller 2 for supplying a voltage to the field coil.
また、溶接制御装置２には第２の継電器６が接続されて
いる。第２の継電器６には、第２の継電器６の励磁また
は消磁によって電源部に接続されまたは電源部から切り
離される第１および第２の緩動継電器７、８が接続され
ている。A second relay 6 is connected to the welding control device 2. The second relay 6 is connected to the first and second slowing relays 7 and 8 which are connected to or disconnected from the power supply unit by the excitation or demagnetization of the second relay 6.
第１の緩動継電器７には、第１の緩動継電器７の励磁ま
たは消磁によって緩衝蓄電池４に接続されまたは緩衝蓄
電池４から切り離される第３の継電器９が接続されてい
る。第３の継電器９には、直流モータ１の電機子が接続
され、第３の継電器９の励磁または消磁によって緩衝蓄
電池４に接続されまたは緩衝蓄電池４から切り離される
ようになっている。The first slower relay 7 is connected to the third slower relay 9 which is connected to the buffer storage battery 4 or is disconnected from the buffer storage battery 4 by the excitation or demagnetization of the first slower relay 7. The armature of the DC motor 1 is connected to the third relay 9, and is connected to or disconnected from the buffer storage battery 4 by exciting or demagnetizing the third relay 9.
第２の緩動継電器８には、第２の緩動継電器８の励磁ま
たは消磁によって緩衝蓄電池４に接続されまたは緩衝蓄
電池４から切り離される第４の継電器10が接続されてい
る。第４の継電器10には、直流モータ１の界磁コイルが
接続され、第４の継電器10の励磁または消磁によって緩
衝蓄電池４に接続されまたは緩衝蓄電池４から切り離さ
れるようになっている。The second slow-moving relay 8 is connected to a fourth relay 10 that is connected to the buffer storage battery 4 or is disconnected from the buffer storage battery 4 by exciting or demagnetizing the second slow-moving relay 8. The field coil of the DC motor 1 is connected to the fourth relay 10, and is connected to or disconnected from the buffer storage battery 4 by exciting or demagnetizing the fourth relay 10.
こうして通常の溶接作業時には、第１の継電器５が励磁
され、その接極子は引きつけられと同時に、緩衝蓄電池
４に対する充電装置３が電源部に接続される。また、第
２の継電器６が励磁され、その接極子は引きつけられ、
第１および第２の緩動継電器７、８が励磁され、これに
よって第３および第４の継電器９、10が励磁される。Thus, during the normal welding operation, the first relay 5 is excited, its armature is attracted, and at the same time, the charging device 3 for the buffer storage battery 4 is connected to the power supply unit. Also, the second relay 6 is excited and its armature is attracted,
The first and second slower relays 7, 8 are excited, which in turn excites the third and fourth relays 9, 10.
接点9.3および9.4は、直流モータ１の電機子制動回路を
電源部から切り離す。同時に、モータ１の電機子および
界磁コイルの捲線は、接点5.1〜5.4を通じて溶接制御装
置２から電圧を供給される。アークの点灯によって溶接
作業が開始される。Contacts 9.3 and 9.4 disconnect the armature braking circuit of DC motor 1 from the power supply. At the same time, the armature of the motor 1 and the windings of the field coil are supplied with voltage from the welding control device 2 through the contacts 5.1 to 5.4. The welding work is started by turning on the arc.
電源部に異常が生じた場合、第１の継電器５は消磁さ
れ、その接点5.1〜5.8を介して直流モータ１は緩衝蓄電
池４による電圧供給回路に切替えられるとともに、直流
モータ１の電機子は反対の極性をもつようになる。そし
て、直流モータ１が逆向きに回転し、溶接電極送りロー
ラ13が逆向きに回転駆動されることによって、溶接電極
12はすぐに溶接電極スプール11に巻き戻され、溶接浴か
ら退避せしめられる。When an abnormality occurs in the power supply section, the first relay 5 is demagnetized, the DC motor 1 is switched to the voltage supply circuit by the buffer storage battery 4 via the contacts 5.1 to 5.8, and the armature of the DC motor 1 is reversed. Will have the polarity of. Then, the DC motor 1 rotates in the opposite direction, and the welding electrode feed roller 13 is driven to rotate in the opposite direction.
The 12 is immediately rewound onto the welding electrode spool 11 and retracted from the welding bath.
電源部の異常によって第２の継電器６もまた消磁され、
第１および第２の緩動継電器７、８が電源部から切り離
される。所定時間経過後、まず最初に、第１の緩動継電
器７が切替えられて、第３の継電器９が消磁され、その
接点9.1〜9.4が切替えられる。そして直流モータ１の電
機子が緩衝蓄電池４から切り離され、接点5.5および9.3
並びに5.6および9.4によってブリッジが形成され、直流
モータ１が制動される。その後すぐ、第２の緩動継電器
８が切替えられ、第４の継電器10が消磁され、直流モー
タ１の界磁コイルが緩衝蓄電池４から切り離され、直流
モータ１は停止する。The second relay 6 is also demagnetized due to the abnormality of the power supply unit,
The first and second slow-moving relays 7 and 8 are disconnected from the power supply section. After a lapse of a predetermined time, first, the first slow relay 7 is switched, the third relay 9 is demagnetized, and its contacts 9.1 to 9.4 are switched. The armature of the DC motor 1 is then disconnected from the buffer battery 4 and the contacts 5.5 and 9.3.
And 5.6 and 9.4 form a bridge, braking the DC motor 1. Immediately after that, the second slow relay 8 is switched, the fourth relay 10 is demagnetized, the field coil of the DC motor 1 is disconnected from the buffer battery 4, and the DC motor 1 is stopped.
こうして、本発明によれば、溶接電極送りローラを駆動
せしめる直流モータを、電源部または緩衝蓄電池に選択
的に接続する継電器回路を設け、電源部に異常が発生し
た時、直流モータを緩衝蓄電池に切り換えると同時に直
流モータを反転せしめ、所定時間経過後に直流モータを
停止せしめるようにしたことにより、電源部に異常が生
じた時、溶接電極を溶接浴から直ちに退避せしめること
により、溶接電極が低温度の溶接浴中において溶着する
ことを防止することができる。Thus, according to the present invention, a DC circuit for driving the welding electrode feed roller is provided with a relay circuit for selectively connecting to the power supply unit or the buffer storage battery, and when an abnormality occurs in the power supply unit, the DC motor becomes the buffer storage battery. By switching the DC motor at the same time as switching and stopping the DC motor after a lapse of a predetermined time, when an abnormality occurs in the power supply section, the welding electrode is immediately retracted from the welding bath, so that the welding electrode is kept at a low temperature. It is possible to prevent welding in the welding bath.
図面は本発明による装置の１実施例を示す回路図であ
る。 １……直流モータ ２……溶接制御装置 ３……充電装置 ４……緩衝蓄電池 ５……第１の継電器 5.1〜5.8……接点 ６……第２の継電器 ７……第１の緩動継電器 ８……第２の緩動継電器 ９……第３の継電器 9.1〜9.4……接点 10……第４の継電器 10.1〜10.2……接点 11……溶接電極スプール 12……ワイヤ型溶接電極 13……溶接電極送りロール 14……母材The drawing is a circuit diagram showing an embodiment of the device according to the invention. 1 ... DC motor 2 ... Welding control device 3 ... Charging device 4 ... Buffer storage battery 5 ... First relay 5.1 to 5.8 ... Contact 6 ... Second relay 7 ... First slow-moving relay 8 …… 2nd slow relay 9 …… 3rd relay 9.1 to 9.4 …… contacts 10 …… 4th relay 10.1 to 10.2 …… contacts 11 …… welding electrode spool 12 …… wire type welding electrode 13 …… … Welding electrode feed roll 14 …… Base material
フロントページの続き (72)発明者 ハインリッヒ シュヴィル ドイツ連邦共和国、4300 エシェン、ユイ ストベーグ 47Front Page Continuation (72) Inventor Heinrich Schwil Germany, 4300 Eschen, Uistvaeg 47
Claims (2)
電極の間にアークを発生せしめるとともに、前記溶接電
極を前記電源部に接続された直流モータによって駆動さ
れる溶接電極送りローラを通じて送り出し、前記溶接電
極を溶融し、前記母材の継目部に溶着せしめて溶接を行
うアーク溶接において、前記電源部に異常が生じた時に
前記溶接電極が溶着することを防止するための方法であ
って、 前記電源部に接続された緩衝蓄電池４と、前記直流モー
タ１を前記電源部または前記緩衝蓄電池４に選択的に接
続する継電器回路を設け、前記電源部に異常が生じた
時、前記直流モータ１を前記緩衝蓄電池４に接続し、同
時に前記直流モータ１の回転の向きを反転せしめ、所定
時間経過後、前記直流モータ１を前記緩衝蓄電池４から
切り離すことを特徴とする方法。1. An arc is generated between a base material and a wire-type welding electrode through a power supply unit, and the welding electrode is sent out through a welding electrode feed roller driven by a DC motor connected to the power supply unit, Melting the welding electrode, in arc welding in which welding is performed by welding to the seam portion of the base material, a method for preventing the welding electrode from welding when an abnormality occurs in the power source portion, A buffer storage battery 4 connected to a power supply unit and a relay circuit for selectively connecting the DC motor 1 to the power supply unit or the buffer storage battery 4 are provided, and the DC motor 1 is connected when an abnormality occurs in the power supply unit. Connecting to the buffer storage battery 4, reversing the direction of rotation of the DC motor 1 at the same time, and disconnecting the DC motor 1 from the buffer storage battery 4 after a lapse of a predetermined time. A method characterized by.
電極の間にアークを発生せしめるとともに、前記溶接電
極を前記電源部に接続された直流モータによって駆動さ
れる溶接電極送りローラを通じて送り出し、前記溶接電
極を溶融し、前記母材の継目部に溶着せしめて溶接を行
うアーク溶接機において、前記電源部に異常が生じた時
に前記溶接電極が溶着することを防止するための装置で
あって、 前記電源部に接続された緩衝蓄電池４と、 前記直流モータ１を前記電源部または前記緩衝蓄電池４
に選択的に接続するとともに、前記直流モータ１を前記
緩衝蓄電池４に接続した時には所定時間経過後に前記直
流モータ１を前記緩衝蓄電池４から切り離す継電器回路
を有しており、前記継電器回路は、さらに、 励磁または消磁によって前記直流モータ１を前記電源部
または前記緩衝蓄電池４に選択的に接続する第１の継電
器５と、 前記電源部に接続された第２の継電器６と、 前記第２の継電器６に接続され、前記第２の継電器６の
励磁または消磁によって前記電源部に接続されまたは前
記電源部から切り離される第１および第２の緩衝継電器
７、８と、 前記第１の緩動継電器７に接続され、前記第１の緩動継
電器７の励磁または消磁によって前記緩衝蓄電池４に接
続されまたは前記緩衝蓄電池４から切り離される第３の
継電器９であって、前記直流モータ１の電機子が、前記
第３継電器９の励磁または消磁によって前記緩衝蓄電池
４に接続されまたは前記緩衝蓄電池４から切り離される
ように接続されたものと、 前記第２の緩動継電器８に接続され、前記第２の緩動継
電器８の励磁または消磁によって前記緩衝蓄電池４に接
続されまたは前記緩衝蓄電池４から切り離される前記第
４の継電器10であって、前記直流モータ１の界磁コイル
が、前記第４の継電器10の励磁または消磁によって前記
緩衝蓄電池４に接続されまたは前記緩衝蓄電池４から切
り離されるように接続されたものからなっており、 前記電源部に異常が生じた時、前記第１の継電器５が消
磁されて前記直流モータ１は前記緩衝蓄電池４に接続さ
れ、同時に前記直流モータ１の回転の向きが反転せしめ
られ、その後前記第２の継電器６が消磁されて前記第１
および第２の緩動継電器７、８が前記電源部から切り離
されて所定時間経過後に消磁され、前記第３の継電器９
が前記緩衝電池３から切り離されて消磁されることによ
って前記直流モータ１の電機子が前記緩衝蓄電池４から
切り離され、同時に前記第４の継電器10が前記緩衝蓄電
池４から切り離されて消磁されることによって前記直流
モータの界磁コイルが前記緩衝蓄電池４から切り離され
ることを特徴とする装置。2. An arc is generated between a base material and a wire-type welding electrode through a power source unit, and the welding electrode is fed through a welding electrode feed roller driven by a DC motor connected to the power source unit, In an arc welder that melts a welding electrode and welds it by welding it to the joint part of the base material, a device for preventing the welding electrode from welding when an abnormality occurs in the power source part, The buffer storage battery 4 connected to the power supply unit and the DC motor 1 are connected to the power supply unit or the buffer storage battery 4
In addition to selectively connecting the DC motor 1 to the buffer storage battery 4, the relay circuit has a relay circuit for disconnecting the DC motor 1 from the buffer storage battery 4 after a predetermined time elapses. , A first relay 5 for selectively connecting the DC motor 1 to the power supply unit or the buffer storage battery 4 by excitation or demagnetization, a second relay 6 connected to the power supply unit, and the second relay First and second buffer relays 7 and 8 which are connected to the power supply unit 6 and are connected to or disconnected from the power supply unit by excitation or demagnetization of the second relay 6, and the first slow relay 7 A third relay 9 which is connected to the buffer storage battery 4 or is disconnected from the buffer storage battery 4 by the excitation or demagnetization of the first slow relay 7. An armature of the DC motor 1 is connected to the buffer storage battery 4 by excitation or demagnetization of the third relay 9 or is connected so as to be disconnected from the buffer storage battery 4, and the second slow relay 8 is a fourth relay 10 connected to the buffer storage battery 4 or disconnected from the buffer storage battery 4 by exciting or demagnetizing the second slow relay 8, which is the field of the DC motor 1. The coil is configured to be connected to the buffer storage battery 4 or to be disconnected from the buffer storage battery 4 by excitation or demagnetization of the fourth relay 10, and when an abnormality occurs in the power supply unit, The first relay 5 is demagnetized, the DC motor 1 is connected to the buffer storage battery 4, and at the same time, the direction of rotation of the DC motor 1 is reversed. The serial second relay 6 is deenergized first
The second slow relays 7 and 8 are demagnetized after a predetermined time has elapsed since they were disconnected from the power source section, and the third relay 9
Is separated from the buffer battery 3 and demagnetized, whereby the armature of the DC motor 1 is separated from the buffer storage battery 4, and at the same time, the fourth relay 10 is separated from the buffer storage battery 4 and demagnetized. A device for disconnecting the field coil of the DC motor from the buffer storage battery 4 by means of.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE3609877.9 | 1986-03-22 | ||
| DE19863609877 DE3609877A1 (en) | 1986-03-22 | 1986-03-22 | Method for preventing fast burning of a welding wire |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62230480A JPS62230480A (en) | 1987-10-09 |
| JPH0747211B2 true JPH0747211B2 (en) | 1995-05-24 |
Family
ID=6297139
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6773987A Expired - Lifetime JPH0747211B2 (en) | 1986-03-22 | 1987-03-20 | Method and apparatus for preventing welding of wire type welding electrode in case of power failure in arc welding |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JPH0747211B2 (en) |
| DE (1) | DE3609877A1 (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9498839B2 (en) | 2010-12-14 | 2016-11-22 | Lincoln Global, Inc. | Welding apparatus with automated welding wire retraction |
| US9821400B2 (en) | 2010-12-14 | 2017-11-21 | Lincoln Global, Inc. | Manual welding apparatus having an automatic wire retract method |
| US10562124B2 (en) | 2010-12-14 | 2020-02-18 | Lincoln Global, Inc. | Welding apparatus with automated welding retraction |
| CN104220204B (en) * | 2012-02-10 | 2018-04-24 | 林肯环球股份有限公司 | The welding equipment retracted with automatic welding wire |
| US10500671B2 (en) | 2017-04-06 | 2019-12-10 | Lincoln Global, Inc. | System and method for arc welding and wire manipulation control |
| CN109733198B (en) * | 2018-11-30 | 2020-11-13 | 铜陵市优车科技有限公司 | Main contactor adhesion detection method and device, power battery system and vehicle |
| CN111790962A (en) * | 2020-06-28 | 2020-10-20 | 上海气焊机厂有限公司 | Dual-power-supply starting control method and device and welding machine |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3657724A (en) * | 1969-10-24 | 1972-04-18 | Lincoln Electric Co | Method of and power supply for electric arc welding |
-
1986
- 1986-03-22 DE DE19863609877 patent/DE3609877A1/en active Granted
-
1987
- 1987-03-20 JP JP6773987A patent/JPH0747211B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| DE3609877C2 (en) | 1993-05-06 |
| JPS62230480A (en) | 1987-10-09 |
| DE3609877A1 (en) | 1987-09-24 |
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