JPH01205879A - Automatic welding equipment - Google Patents

Automatic welding equipment

Info

Publication number
JPH01205879A
JPH01205879A JP2939488A JP2939488A JPH01205879A JP H01205879 A JPH01205879 A JP H01205879A JP 2939488 A JP2939488 A JP 2939488A JP 2939488 A JP2939488 A JP 2939488A JP H01205879 A JPH01205879 A JP H01205879A
Authority
JP
Japan
Prior art keywords
welding
electrode
torch
groove
tip
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
JP2939488A
Other languages
Japanese (ja)
Inventor
Shoji Hirano
平野 正二
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
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 Toshiba Corp filed Critical Toshiba Corp
Priority to JP2939488A priority Critical patent/JPH01205879A/en
Publication of JPH01205879A publication Critical patent/JPH01205879A/en
Pending legal-status Critical Current

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  • Manipulator (AREA)
  • Numerical Control (AREA)

Abstract

PURPOSE:To eliminate the need to adjust the position of an electrode by deviating the tips of an electrode and a groove profile sensor to execute teaching and storing the difference between the positions in a welding parameter storage part as the torch shift quantity. CONSTITUTION:At the time of teaching, a locus of the sensor tip 4a, namely, a locus where the electrode 3 is deviated from the center of a groove 25 is stored. The difference between the position of the electrode 3 tip and the position of the sensor tip 4a, namely, the deviation in the lateral direction and that in the vertical direction are denoted by DELTAY and DELTAZ respectively and these are made to the torch shift quantity at the time of starting and stored in the welding parameter storage part 14. At the time of performing welding operation, in a state with the sensor tip 4a separated from the electrode 3, the torch shift quantity stored in the welding parameter storage part 14 is added to a groove locus signal stored in a groove locus storage part 15. The electrode 3 tip is moved to the center of the groove 25 by a moving device of the welding torch 1 and a welding carriage 8 is driven to perform welding. By this method, since adjusting work for alignment is not carried out, workability is improved.

Description

【発明の詳細な説明】 〔発明の目的〕 (産業上の利用分野) 本発明は自動溶接装置に関する。[Detailed description of the invention] [Purpose of the invention] (Industrial application field) The present invention relates to automatic welding equipment.

(従来の技術) 第4図は自動溶接装置の溶接トーチ部を示した図である
。図中符号1は溶接トーチであり、この溶接トーチ1に
は上下動可能に電極支持部材2が貫通されており、この
電極支持部材2の下端に電極3が取付けられている。ま
た、溶接トーチ1の側方には開先倣いセンサ4を支持す
る腕5が設けられている。
(Prior Art) FIG. 4 is a diagram showing a welding torch section of an automatic welding device. Reference numeral 1 in the figure is a welding torch, and an electrode support member 2 passes through the welding torch 1 so as to be movable up and down, and an electrode 3 is attached to the lower end of the electrode support member 2. Furthermore, an arm 5 that supports a groove tracing sensor 4 is provided on the side of the welding torch 1 .

第5図はこの様な溶接トーチ部を有する自動溶接装置の
ブロック図を示した図である。ここで、各パスの溶接電
流、溶接電圧等の溶接条件および溶接トーチのシフト量
並びにバス数が制御装置12内の溶接パラメータ設定部
6に入力され、溶接パラメータ記憶部7に記憶される。
FIG. 5 is a block diagram of an automatic welding device having such a welding torch section. Here, the welding conditions such as welding current and welding voltage for each pass, the shift amount of the welding torch, and the number of buses are input to the welding parameter setting section 6 in the control device 12 and stored in the welding parameter storage section 7.

また、ティーチング時にはff16図に示すように、電
極3と開先倣いセンサ4の先端とを同じ位置に合わせた
状態で、開先倣いセンサ4の信号によって、溶接台車8
を駆動させる。このように、開先を倣わした開先倣いセ
ンサ4の軌跡がインターフェイス9を通して、開先軌跡
記憶部10に記憶される。
Also, during teaching, as shown in Figure ff16, with the electrode 3 and the tip of the groove tracing sensor 4 aligned at the same position, the welding cart 8 is moved by the signal from the groove tracing sensor 4.
drive. In this way, the trajectory of the groove tracing sensor 4 tracing the groove is stored in the groove trajectory storage section 10 through the interface 9.

しかして、溶接運転を行なう際には、開先軌跡記憶部1
0の軌跡データによって、溶接台車8が駆動され、溶接
パラメータ記憶部7に記憶されている各パスの溶接条件
が溶接電源11に出力されて溶接トーチ1によって溶接
がなされる。そして、1パス終了すると、次のパスの溶
接条件およびトーチシフト量が溶接パラメータ記憶部7
より読み出され、その溶接条件がインターフェイス9を
介して溶接電源11に出力され、トーチシフト量が開先
軌跡に加算されて溶接台車8が駆動され、溶接トーチ1
によって溶接がなされる。このようにして、予め設定さ
れたパス数だけ自動溶接が行なわれる。
Therefore, when performing a welding operation, the groove trajectory storage section 1
The welding cart 8 is driven by the trajectory data of 0, the welding conditions for each pass stored in the welding parameter storage section 7 are output to the welding power source 11, and welding is performed by the welding torch 1. When one pass is completed, the welding conditions and torch shift amount for the next pass are stored in the welding parameter storage unit 7.
The welding conditions are output to the welding power source 11 via the interface 9, the torch shift amount is added to the groove trajectory, the welding cart 8 is driven, and the welding torch 1 is
Welding is done by In this way, automatic welding is performed for a preset number of passes.

(発明が解決しようとする課題) ところが、溶接運転の際の1パス目はティーチング時の
開先倣いセンサの軌跡が溶接トーチの軌跡となって溶接
が行なわれるために、ティーチング時に、センサの先端
と電極が同じ位置になっていなかったような場合には、
溶接運転時に電極が開先の中央に合わなくなり、溶は込
み不良等の欠陥が発生することがある。そのために、セ
ンサの取付は支持部に上下左右の調整機構等を備えるこ
とが考えられるが、このような調整機構等を備えると、
溶接トーチの部分が複雑になり、かつティーチング時の
センサの先端の位置調整を必要とする等の問題がある。
(Problem to be Solved by the Invention) However, in the first pass during welding operation, the trajectory of the groove tracing sensor during teaching becomes the trajectory of the welding torch, and therefore, during teaching, the tip of the sensor If the electrodes are not in the same position,
During welding operation, the electrode may not be aligned with the center of the groove, resulting in defects such as poor penetration. For this reason, it is conceivable to install a sensor by providing a vertical and horizontal adjustment mechanism on the support part, but if such an adjustment mechanism is provided,
There are problems such as the welding torch becomes complicated and the position of the tip of the sensor needs to be adjusted during teaching.

本発明は上述のような問題点に鑑みてなされたもので、
ティーチング時のセンサ先端と電極の先端の位置合せを
することなく、溶接運転ではセンサ先端が倣った位置を
溶接することができる自動溶接装置を提供することを目
的とする。
The present invention was made in view of the above-mentioned problems.
An object of the present invention is to provide an automatic welding device capable of welding the position followed by the sensor tip during welding operation without aligning the sensor tip and the electrode tip during teaching.

〔発明の構成〕[Structure of the invention]

(課題を解決するための手段) 本発明は、予め設定された溶接条件に従って多層盛り自
動溶接を行なうティーチングプレイバック型の自動溶接
装置において、電極と開先倣いセンサのセンサ先端とを
ずらしてティーチングを行なうとともに、上記電極と上
記センサ先端とのティーチング時の位置の差をスタート
時のトーチシフト量として記憶させる溶接パラメータ記
憶部と、溶接トーチのスタート時に上記トーチシフト量
を開先軌跡信号に加えて溶接トーチを移動させる溶接ト
ーチ移動装置とを有することを特徴とする自動溶接装置
に関する。
(Means for Solving the Problems) The present invention provides a teaching playback type automatic welding device that performs automatic multilayer welding according to preset welding conditions, in which teaching is performed by shifting the electrode and the sensor tip of the groove tracing sensor. In addition, a welding parameter storage section stores the positional difference between the electrode and the tip of the sensor at the time of teaching as the torch shift amount at the start, and a welding parameter storage section stores the difference in position between the electrode and the tip of the sensor at the time of teaching, and adds the torch shift amount to the groove trajectory signal at the start of the welding torch. The present invention relates to an automatic welding device characterized by having a welding torch moving device that moves the welding torch by moving the welding torch.

(作 用) 電極と開先倣いセンサのセンサ先端部とをずらしてティ
ーチングを行なう。そこで、このティーチング時の電極
とセンサ先端部との位置の差をトーチシフト量として、
溶接パラメータ記憶部に記憶させることにより、溶接運
転時に電極の先端を開先の中央部に持ってくることがで
きる。
(Operation) Teaching is performed by shifting the electrode and the sensor tip of the groove tracing sensor. Therefore, the difference in position between the electrode and the tip of the sensor during this teaching is taken as the torch shift amount.
By storing the parameters in the welding parameter storage section, the tip of the electrode can be brought to the center of the groove during welding operation.

(実施例) 以下、添附図面を参照して本発明の一実施例について説
明する。
(Example) Hereinafter, an example of the present invention will be described with reference to the accompanying drawings.

第1図は本発明の要部を示すブロック図である。FIG. 1 is a block diagram showing the main parts of the present invention.

制御装置12には溶接電流、電圧、速度、トーチシフト
量、バス数等の溶接パラメータを入力設定する溶接パラ
メータ設定部13が設けられており、ここで設定された
溶接パラメータは溶接パラメータ記憶部14に記憶され
る。
The control device 12 is provided with a welding parameter setting section 13 for inputting and setting welding parameters such as welding current, voltage, speed, torch shift amount, and number of buses.The welding parameters set here are stored in a welding parameter storage section 14. is memorized.

また、制御装置12に設けられた開先軌跡記憶部15に
はティーチング時に溶接台車8のトーチ位置検出器16
からのトーチ位置データがA/D変換器17を介してデ
ジタル化され、開先軌跡データとして記憶される。さら
に、制御装置12に設けられた中央処理装置18では溶
接パラメータおよび開先軌跡の書き込み、読出し、デー
タの判別、演算、並びに溶接電源11および溶接台車8
への指令値の出力等が行なわれる。また、この中央処理
装置18には手元操作箱19からの操作信号および開先
倣いセンサ4の信号が入出力ボート20を介して入力さ
れる。この中央処理装置18は溶接パラメータ記憶部1
4および開先軌跡記憶部15に記憶されている値を目標
値として、溶接台車8内の駆動モータ21をD/A変換
器22および増幅器23を介して制御することによって
、溶接台車8を制御する。一方、溶接電源11には制御
装置12内のD/A変換器24を介して指令値が出力さ
れる。
In addition, the bevel trajectory storage unit 15 provided in the control device 12 includes a torch position detector 16 of the welding cart 8 during teaching.
The torch position data is digitized via the A/D converter 17 and stored as groove trajectory data. Furthermore, a central processing unit 18 provided in the control device 12 writes and reads welding parameters and groove trajectories, discriminates and calculates data, and also processes the welding power source 11 and the welding cart 8.
Command values are output to, etc. Further, an operation signal from a hand-held operation box 19 and a signal from the groove tracing sensor 4 are input to the central processing unit 18 via an input/output boat 20 . This central processing unit 18 is a welding parameter storage unit 1
Welding carriage 8 is controlled by controlling drive motor 21 in welding carriage 8 via D/A converter 22 and amplifier 23 using the values stored in 4 and groove trajectory storage unit 15 as target values. do. On the other hand, a command value is output to the welding power source 11 via the D/A converter 24 in the control device 12.

次に、第2図乃び第3図に示す溶接トーチ1の電極3と
開先倣いセンサ4のセンサ先端部4aのティーチング時
および溶接運転時の位置関係を示す図を利用して、この
自動溶接装置の作用を説明する。
Next, using the diagrams shown in FIGS. 2 and 3 showing the positional relationship between the electrode 3 of the welding torch 1 and the sensor tip 4a of the groove tracing sensor 4 during teaching and welding operation, this automatic The operation of the welding device will be explained.

ティーチング時のセンサ先端部4aと電極3の位置関係
を第2図に示す。このようなセンサ先端部4aと電極3
の先端がずれた状態でティーチングを行なうとすると、
この時のセンサ先端部4aの軌跡、すなわち電極3が開
先25の中心からずれた軌跡が記憶されることになる。
FIG. 2 shows the positional relationship between the sensor tip 4a and the electrode 3 during teaching. Such a sensor tip 4a and an electrode 3
If you try to teach with the tip of the
The trajectory of the sensor tip 4a at this time, that is, the trajectory of the electrode 3 being deviated from the center of the groove 25, is stored.

そこで、ティーチング時の電極3の先端の位置とセンサ
先端部4aの位置との差、すなわち、第3図中において
左右方向のずれをΔY1上下方向のずれをΔZとして、
これらをスタート時のトーチシフト量とし、溶接パラメ
ータ設定部13で設定して溶接パラメータ記憶部14に
記憶させる。
Therefore, the difference between the position of the tip of the electrode 3 and the position of the sensor tip 4a during teaching, that is, the deviation in the horizontal direction in FIG. 3 is ΔY1, and the deviation in the vertical direction is ΔZ.
These are the torch shift amounts at the start, set by the welding parameter setting section 13, and stored in the welding parameter storage section 14.

この状態で溶接運転を行なう際には、まず、センサ先端
部4aを電極3から離した状態で、開先軌跡記憶部15
に記憶された開先軌跡信号に、溶接パラメータ記憶部1
4に記憶されたトーチシフト量を加算して、溶接トーチ
1を溶接トーチ移動装置によって、第3図に示すように
、溶接トーチ1に取付けられた電極3の先端を開先25
の中央に移動させる。その後、溶接台車8を駆動させて
、溶接が行なわれる。
When performing a welding operation in this state, first, with the sensor tip 4a separated from the electrode 3, the groove trajectory storage section 15
Welding parameter storage unit 1
4, the welding torch 1 is moved by the welding torch moving device to the groove 25 at the tip of the electrode 3 attached to the welding torch 1, as shown in FIG.
move it to the center. Thereafter, welding cart 8 is driven to perform welding.

〔発明の効果〕〔Effect of the invention〕

本発明は上述したように、電極と開先倣いセンサのセン
サ先端部とをずらしてティーチングを行なった場合に、
ティーチング時の位置の差をトーチシフト量として溶接
パラメータ記憶部に記憶させておくことによって、開先
倣いセンサの取付部に位置の調整を行なう部材を取付け
なくてもよい。
As described above, in the present invention, when teaching is performed by shifting the electrode and the sensor tip of the groove tracing sensor,
By storing the difference in position during teaching in the welding parameter storage section as a torch shift amount, there is no need to attach a member for adjusting the position to the attachment section of the groove tracing sensor.

また、位置合わせのための調整作業を行なわないため、
作業性に優れている等の効果を奏する。
In addition, since there is no adjustment work required for positioning,
It has effects such as excellent workability.

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

第1図は本発明の要部を示すブロック図、第2図は本発
明の詳細な説明する説明図、第3図は本発明の詳細な説
明する説明図、第4図は自動溶接装置の溶接トーチ部を
示した図、第5図は従来の要部を示すブロック図、第6
図は従来の作用を説明する説明図である。 1・・・溶接トーチ、2・・・電極支持部材、3・・・
電極、4・・・開先倣いセンサ、4a・・・センサ先端
部、5・・・腕、6・・・溶接パラメータ設定部、7・
・・溶接パラメータ記憶部、8・・・溶接台車、9・・
・インターフェイス、10・・・開先軌跡記憶部、11
・・・溶接電源、12・・・制御装置、13由溶接パラ
メ一タ設定部、14・・・溶接パラメータ記憶部、15
・・・開先軌跡記憶部、16・・・トーチ位置検出器、
17・・・A/D変換器、18・・・中央処理装置、1
9・・・手元操作箱、20・・・人出力ボート、21・
・・駆動モータ、22・・・D/A変換器、23・・・
増幅器、24・・・D/A変換器、25・・・開先。 第 1 図 第 2 図 !  ! 第 l 図 第5図 第6図
FIG. 1 is a block diagram showing the main parts of the present invention, FIG. 2 is an explanatory diagram explaining the invention in detail, FIG. 3 is an explanatory diagram explaining the invention in detail, and FIG. 4 is an illustration of the automatic welding device. Fig. 5 is a block diagram showing the conventional main parts; Fig. 6 is a diagram showing the welding torch section;
The figure is an explanatory diagram illustrating the conventional operation. 1... Welding torch, 2... Electrode support member, 3...
Electrode, 4... Groove tracing sensor, 4a... Sensor tip, 5... Arm, 6... Welding parameter setting section, 7.
... Welding parameter storage section, 8... Welding cart, 9...
・Interface, 10... Groove trajectory storage section, 11
... Welding power source, 12... Control device, 13 Welding parameter setting section, 14... Welding parameter storage section, 15
... Bevel trajectory storage section, 16... Torch position detector,
17...A/D converter, 18...Central processing unit, 1
9...Hand control box, 20...Man output boat, 21.
... Drive motor, 22... D/A converter, 23...
Amplifier, 24...D/A converter, 25...Bevel. Figure 1 Figure 2! ! Figure l Figure 5 Figure 6

Claims (1)

【特許請求の範囲】[Claims] 予め設定された溶接条件に従って多層盛り自動溶接を行
なうティーチングプレイバック型の自動溶接装置におい
て、電極と開先倣いセンサのセンサ先端とをずらしてテ
ィーチングを行なうとともに、上記電極と上記センサ先
端とのティーチング時の位置の差をスタート時のトーチ
シフト量として記憶させる溶接パラメータ記憶部と、溶
接トーチのスタート時に上記トーチシフト量を開先軌跡
信号に加えて溶接トーチを移動させる溶接トーチ移動装
置とを有することを特徴とする自動溶接装置。
In a teaching playback type automatic welding device that performs multilayer automatic welding according to preset welding conditions, teaching is performed by shifting the electrode and the sensor tip of the groove tracing sensor, and teaching is performed between the electrode and the sensor tip. a welding parameter storage unit that stores the difference in position at the time as a torch shift amount at the start, and a welding torch moving device that moves the welding torch by adding the torch shift amount to the groove trajectory signal when the welding torch is started. An automatic welding device characterized by:
JP2939488A 1988-02-10 1988-02-10 Automatic welding equipment Pending JPH01205879A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2939488A JPH01205879A (en) 1988-02-10 1988-02-10 Automatic welding equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2939488A JPH01205879A (en) 1988-02-10 1988-02-10 Automatic welding equipment

Publications (1)

Publication Number Publication Date
JPH01205879A true JPH01205879A (en) 1989-08-18

Family

ID=12274925

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2939488A Pending JPH01205879A (en) 1988-02-10 1988-02-10 Automatic welding equipment

Country Status (1)

Country Link
JP (1) JPH01205879A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5264677A (en) * 1992-01-13 1993-11-23 Kabushiki Kaisha Komatsu Seisakusho Welding start position detecting apparatus for welding robot

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5264677A (en) * 1992-01-13 1993-11-23 Kabushiki Kaisha Komatsu Seisakusho Welding start position detecting apparatus for welding robot

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