JP3138570B2 - Electrode stroke control device in welding machine - Google Patents
Electrode stroke control device in welding machineInfo
- Publication number
- JP3138570B2 JP3138570B2 JP05167301A JP16730193A JP3138570B2 JP 3138570 B2 JP3138570 B2 JP 3138570B2 JP 05167301 A JP05167301 A JP 05167301A JP 16730193 A JP16730193 A JP 16730193A JP 3138570 B2 JP3138570 B2 JP 3138570B2
- Authority
- JP
- Japan
- Prior art keywords
- electrode
- holding member
- arm
- work
- stopper
- 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 - Fee Related
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
- B23K11/00—Resistance welding; Severing by resistance heating
- B23K11/24—Electric supply or control circuits therefor
- B23K11/25—Monitoring devices
- B23K11/252—Monitoring devices using digital means
- B23K11/253—Monitoring devices using digital means the measured parameter being a displacement or a position
-
- 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
- B23K11/00—Resistance welding; Severing by resistance heating
- B23K11/10—Spot welding; Stitch welding
- B23K11/11—Spot welding
-
- 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
- B23K11/00—Resistance welding; Severing by resistance heating
- B23K11/30—Features relating to electrodes
- B23K11/3009—Pressure electrodes
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Resistance Welding (AREA)
Description
【0001】[0001]
【産業上の利用分野】本発明は、電動機または流体シリ
ンダにより駆動される可動ア―ムあるいはイコライジン
グユニット等によって移動される固定ア―ムに接続され
た電極保持部材の先端に取付けられた溶接機用電極のス
トロ―クを制御する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 welding machine attached to a tip of an electrode holding member connected to a movable arm driven by an electric motor or a fluid cylinder or a fixed arm moved by an equalizing unit or the like. The present invention relates to a device for controlling a stroke of a working electrode.
【0002】[0002]
【従来の技術】従来、電動機または流体シリンダにより
駆動される可動ア―ムおよび固定ア―ムの先端には、電
極保持部材が直接に接続され、該電極保持部材の先端に
溶接機用電極が取付けられていた。そして、溶接時に
は、電動機または流体シリンダにより可動ア―ムが駆動
されて、可動ア―ム側の電極が急速にワ―クに当接さ
れ、ついでイコライジングユニット等により固定ア―ム
側の電極が前記ワ―クに当接した状態で加圧溶接が行わ
れるようになっている。2. Description of the Related Art Conventionally, an electrode holding member is directly connected to a tip of a movable arm and a fixed arm driven by an electric motor or a fluid cylinder, and an electrode for a welding machine is attached to the tip of the electrode holding member. Was installed. At the time of welding, the movable arm is driven by an electric motor or a fluid cylinder, and the electrode on the movable arm is rapidly brought into contact with the work. Pressure welding is performed in a state of contact with the work.
【0003】[0003]
【発明が解決しようとする課題】ところが、上記従来例
の場合に、可動ア―ムの移動により電極が前記ワ―クに
当接する際に適切な電極ストロ―クの制御装置が見当た
らず、急激な勢いで電極が直接にワ―クに当接して、ワ
―クを変形させたり該電極を破損させたりする、という
問題があった。また、固定ア―ム側においても急激な勢
いで電極が直接にワ―クに当接して同様の問題があっ
た。However, in the case of the above-mentioned conventional example, when an electrode comes into contact with the work due to the movement of the movable arm, an appropriate control device for the electrode stroke cannot be found, and therefore, there is a problem. There is a problem in that the electrode directly contacts the work with a strong force, and the work is deformed or the electrode is damaged. Further, the same problem arises on the fixed arm side because the electrode directly contacts the work with a sudden force.
【0004】本発明は、従来の技術の有するこのような
問題点に鑑みてなされたものであり、その目的とすると
ころは、電極のストロ―ク量を制御することによって、
ワ―クの変形を防止し電極の破損を未然に防ぐような溶
接機における電極ストロ―ク制御装置を提供しようとす
るものである。The present invention has been made in view of the above-mentioned problems of the prior art, and an object of the present invention is to control a stroke amount of an electrode.
An object of the present invention is to provide an electrode stroke control device in a welding machine that prevents deformation of a work and prevents damage to an electrode.
【0005】[0005]
【課題を解決するための手段】上記目的を達成するため
に、本発明における溶接機における電極ストロ―ク制御
装置は、ア―ムの先端部に電極保持部材を回動自在に軸
支し、該電極保持部材の上下面に向け前記ア―ムからそ
れぞれストッパを配置し、一方のストッパの高さを調整
可能にすると共に他方のストッパと電極保持部材の面と
の間にスプリングを配置し、前記電極保持部材に電極の
タッチセンサ―を配置し、電極がワ―クに当接すると前
記タッチセンサ―によりア―ムの移動を抑制すると共に
前記スプリングにより電極の前進力を吸収して電極のワ
―クへの当接をソフトタッチとするようにしたことを特
徴とするものである。In order to achieve the above object, an electrode stroke control device in a welding machine according to the present invention is provided with an electrode holding member rotatably supported at the tip of an arm, A stopper is disposed from the arm toward the upper and lower surfaces of the electrode holding member, and the height of one stopper is adjustable, and a spring is disposed between the other stopper and the surface of the electrode holding member. An electrode touch sensor is placed on the electrode holding member, and when the electrode contacts the work,
The movement of the arm is suppressed by the touch sensor.
The spring absorbs the forward force of the electrode and absorbs the electrode power.
-It is characterized in that the contact with the hook is made a soft touch .
【0006】[0006]
【作用】上記のように構成された溶接機における電極ス
トロ―ク制御装置において、電極保持部材がスプリング
によって押されて高さが調整可能な一方のストッパに当
接された状態で、ア―ムの移動により電極保持部材をワ
―ク側へ移動させて先端の電極をワ―クに向け急速に接
近させ当接させる。そして該電極のワ―クへの当接によ
り電極保持部材は軸支部を中心として該電極保持部材の
面が他方のストッパに当接するまで回動する。そしてそ
の間,前記電極の前進力はスプリングによって吸収され
るが、該電極のワ―クへの当接は電極保持部材の加速度
の変化あるいはア―ムに対する電極保持部材の位置の変
化として直ちにタッチセンサ―に検知されるので、該タ
ッチセンサ―からの信号によりア―ムの移動が抑制され
て、電極のワ―クへの当接はソフトタッチとなる。そし
て前記調整可能なストッパの高さを調整することにより
ア―ムの移動速度に対応した最適な制御が可能となる。In the electrode stroke control device for the welding machine constructed as described above, the arm is held in a state in which the electrode holding member is pressed by the spring and is in contact with one of the stoppers whose height can be adjusted. , The electrode holding member is moved to the work side, and the electrode at the tip is rapidly approached to the work and brought into contact therewith. The contact of the electrode with the workpiece causes the electrode holding member to rotate about the pivot portion until the surface of the electrode holding member contacts the other stopper. During this time, the advancing force of the electrode is absorbed by the spring, but the contact of the electrode with the work immediately changes the acceleration of the electrode holding member or the position of the electrode holding member with respect to the arm. , The movement of the arm is suppressed by the signal from the touch sensor, and the contact of the electrode with the work becomes a soft touch. By adjusting the height of the adjustable stopper, optimal control corresponding to the moving speed of the arm becomes possible.
【0007】[0007]
【実施例】図1を参照してこの発明の実施例について説
明をする。図において、1は可動ア―ムであり、図示し
ない電動機または流体シリンダによって前後進するよう
になっている。該可動ア―ム1の先端部には電極保持部
材2がピン3によって軸支されている。また、該電極保
持部材2の先端には電極4がワ―ク5に向け取付けられ
ている。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described with reference to FIG. In the figure, reference numeral 1 denotes a movable arm, which is moved back and forth by an electric motor or a fluid cylinder (not shown). An electrode holding member 2 is pivotally supported by a pin 3 at the tip of the movable arm 1. An electrode 4 is attached to the tip of the electrode holding member 2 so as to face the work 5.
【0008】該電極保持部材2の後端面6には溶接電流
給電用のシャント7が接続取付けられている。また、可
動ア―ム1の下部にはねじ棒8が固定されており、該ね
じ棒8にナット9が螺合されて前記電極保持部材2の下
面10に対する一方のストッパ11を構成している。し
たがって、該ナット9の位置によってストッパ11の高
さは調整可能である。A shunt 7 for supplying a welding current is attached to the rear end face 6 of the electrode holding member 2. A screw rod 8 is fixed to the lower part of the movable arm 1, and a nut 9 is screwed into the screw rod 8 to constitute one stopper 11 for the lower surface 10 of the electrode holding member 2. . Therefore, the height of the stopper 11 can be adjusted by the position of the nut 9.
【0009】また、12は前記可動ア―ム1の上部に固
定された他方のストッパであり、前記電極保持部材2の
上面13に対するストッパを構成している。そして、該
ストッパ12と電極保持部材2の上面13との間にはス
プリング14が配置されていて、常時電極保持部材2の
上面13を押圧するようになっている。したがって、電
極保持部材2の下面10は図示のように一方のストッパ
11に当接状態にある。Reference numeral 12 denotes another stopper fixed to the upper part of the movable arm 1 and constitutes a stopper for the upper surface 13 of the electrode holding member 2. A spring 14 is arranged between the stopper 12 and the upper surface 13 of the electrode holding member 2 so as to always press the upper surface 13 of the electrode holding member 2. Therefore, the lower surface 10 of the electrode holding member 2 is in contact with one stopper 11 as shown in the figure.
【0010】そして、前記電極保持部材2には、電極の
タッチセンサ―として該電極保持部材2の加速度を検知
する加速度センサ―15が配置されており、該加速度セ
ンサ―15からの信号は電動機または流体シリンダに送
られるようになっている。なお、タッチセンサ―として
は前記加速度センサ―15に代えて前記電極保持部材2
とストッパ11との間に位置センサ―を設けてもよい。The electrode holding member 2 is provided with an acceleration sensor 15 for detecting the acceleration of the electrode holding member 2 as a touch sensor for an electrode, and a signal from the acceleration sensor 15 is provided by an electric motor or a motor. The fluid is sent to the cylinder. The touch sensor is replaced with the electrode holding member 2 instead of the acceleration sensor 15.
A position sensor may be provided between and the stopper 11.
【0011】上記のような溶接機における電極ストロ―
ク制御装置において、図示のように、電極保持部材2が
スプリング14によって押されて、該電極保持部材2の
下面10は高さが調整可能な一方のストッパ11に当接
され、ワ―ク5の一側に可動ア―ム1側の電極4が位置
された状態で、電動機または流体シリンダを駆動するこ
とにより、可動ア―ム1がワ―ク5に向け前進し、該可
動ア―ム1側の電極4が急速にワ―ク5に接近し当接す
る。該電極4のワ―ク5への当接により電極保持部材2
は軸支部3を中心として該電極保持部材2の上面13が
他方のストッパ12に当接するまで回動する。そしてそ
の間,前記電極4の前進力はスプリング14によって吸
収されるが、該電極4のワ―ク5への当接は電極保持部
材2の加速度の変化として直ちに加速度センサ―15に
検知されるので、該加速度センサ―15からの信号によ
りア―ム1の駆動が抑制されて、電極4のワ―ク5への
当接はソフトタッチとなる。そして前記調整可能なスト
ッパ11の高さを調整することによりア―ム1の移動速
度に対応した最適な制御が可能となる。The electrode strobe in the welding machine as described above.
In the work control device, as shown in the figure, the electrode holding member 2 is pressed by a spring 14, and the lower surface 10 of the electrode holding member 2 is brought into contact with one of the stoppers 11 whose height can be adjusted, and the work 5 When the electric motor or the fluid cylinder is driven in a state where the electrode 4 of the movable arm 1 is located on one side of the movable arm 1, the movable arm 1 advances toward the work 5, and the movable arm 1 is moved. The electrode 4 on one side quickly approaches and contacts the work 5. The contact of the electrode 4 with the work 5 causes the electrode holding member 2
Rotates around the shaft support 3 until the upper surface 13 of the electrode holding member 2 comes into contact with the other stopper 12. In the meantime, the forward force of the electrode 4 is absorbed by the spring 14, but the contact of the electrode 4 with the work 5 is immediately detected by the acceleration sensor 15 as a change in the acceleration of the electrode holding member 2. The driving of the arm 1 is suppressed by the signal from the acceleration sensor 15, and the contact of the electrode 4 with the work 5 becomes a soft touch. By adjusting the height of the adjustable stopper 11, optimal control corresponding to the moving speed of the arm 1 becomes possible.
【0012】なお、上記実施例ではア―ムとして可動ア
―ムについて説明をしたが、該ア―ムはイコライジング
ユニット等により移動される固定ア―ムであってもよ
く、その場合にはタッチセンサ―からの信号によりイコ
ライジングユニット等を抑制すればよい。In the above embodiment, a movable arm has been described as an arm, but the arm may be a fixed arm which is moved by an equalizing unit or the like. What is necessary is just to suppress an equalizing unit etc. by the signal from a sensor.
【0013】[0013]
【発明の効果】本発明においては、ア―ムによって電極
がワ―クに当接すると電極保持部材が軸支部を中心とし
て回動し、電極の前進力はスプリングによって吸収さ
れ、直ちにタッチセンサ―が動作して、ア―ムの前進を
抑制するので、電極のストロ―ク量が制御されて電極は
ワ―クに対してソフトに接触することから、電極の衝突
によるワ―クの変形が防止されると共に電極の破損も未
然に防ぐことができるものである。According to the present invention, when the electrode comes into contact with the work by the arm, the electrode holding member rotates around the pivot, the forward force of the electrode is absorbed by the spring, and the touch sensor is immediately turned on. Operates to suppress the advance of the arm, so that the amount of stroke of the electrode is controlled and the electrode makes soft contact with the work. It is possible to prevent the damage of the electrode in advance.
【図1】本発明に係る溶接機における電極ストロ―ク制
御装置の要部の側面図である。FIG. 1 is a side view of a main part of an electrode stroke control device in a welding machine according to the present invention.
1 ア―ム 2 電極保持部材 3 軸支ピン 4 電極 11 一方のストッパ 12 他方のストッパ 14 スプリング 15 タッチセンサ― DESCRIPTION OF SYMBOLS 1 Arm 2 Electrode holding member 3 Shaft support pin 4 Electrode 11 One stopper 12 The other stopper 14 Spring 15 Touch sensor
Claims (1)
に取付けられた電極のストロ―クを制御する装置におい
て、ア―ムの先端部に電極保持部材を回動自在に軸支
し、該電極保持部材の上下面に向け前記ア―ムからそれ
ぞれストッパを配置し、一方のストッパの高さを調整可
能にすると共に他方のストッパと電極保持部材の面との
間にスプリングを配置し、電極保持部材に電極のタッチ
センサ―を配置し、電極がワ―クに当接すると前記タッ
チセンサ―によりア―ムの移動を抑制すると共に前記ス
プリングにより電極の前進力を吸収して電極のワ―クへ
の当接をソフトタッチとするようにしたことを特徴とす
る溶接機における電極ストロ―ク制御装置。In an apparatus for controlling a stroke of an electrode attached to a tip of an electrode holding member connected to an arm, the electrode holding member is rotatably supported at the tip of the arm. A stopper is arranged from the arm toward the upper and lower surfaces of the electrode holding member, and the height of one stopper is adjustable, and a spring is arranged between the other stopper and the surface of the electrode holding member. Then, a touch sensor of the electrode is arranged on the electrode holding member, and when the electrode comes into contact with the work , the touch is performed.
The movement of the arm is suppressed by the
By absorbing the forward force of the electrode by pulling, to the electrode work
An electrode stroke control device for a welding machine, characterized in that the contact of the electrode is soft touch .
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP05167301A JP3138570B2 (en) | 1993-06-15 | 1993-06-15 | Electrode stroke control device in welding machine |
KR1019940000734A KR950000291A (en) | 1993-06-15 | 1994-01-17 | Electrode stroke control device in welding machine |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP05167301A JP3138570B2 (en) | 1993-06-15 | 1993-06-15 | Electrode stroke control device in welding machine |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH071155A JPH071155A (en) | 1995-01-06 |
JP3138570B2 true JP3138570B2 (en) | 2001-02-26 |
Family
ID=15847220
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP05167301A Expired - Fee Related JP3138570B2 (en) | 1993-06-15 | 1993-06-15 | Electrode stroke control device in welding machine |
Country Status (2)
Country | Link |
---|---|
JP (1) | JP3138570B2 (en) |
KR (1) | KR950000291A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101765224B1 (en) | 2015-11-20 | 2017-08-14 | (주)셀트라존 | Automatic Labeling for In-Vitro Diagnostics |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101030212B1 (en) * | 2010-12-20 | 2011-04-22 | 주식회사 이노프 | Steel frame bed |
-
1993
- 1993-06-15 JP JP05167301A patent/JP3138570B2/en not_active Expired - Fee Related
-
1994
- 1994-01-17 KR KR1019940000734A patent/KR950000291A/en not_active Application Discontinuation
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101765224B1 (en) | 2015-11-20 | 2017-08-14 | (주)셀트라존 | Automatic Labeling for In-Vitro Diagnostics |
Also Published As
Publication number | Publication date |
---|---|
JPH071155A (en) | 1995-01-06 |
KR950000291A (en) | 1995-01-03 |
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Legal Events
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R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
LAPS | Cancellation because of no payment of annual fees |