JPS6111715B2 - - Google Patents
Info
- Publication number
- JPS6111715B2 JPS6111715B2 JP57191996A JP19199682A JPS6111715B2 JP S6111715 B2 JPS6111715 B2 JP S6111715B2 JP 57191996 A JP57191996 A JP 57191996A JP 19199682 A JP19199682 A JP 19199682A JP S6111715 B2 JPS6111715 B2 JP S6111715B2
- Authority
- JP
- Japan
- Prior art keywords
- welding
- electrode
- cylinders
- pistons
- clamping device
- 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
Links
- 238000003466 welding Methods 0.000 claims description 17
- 238000010276 construction Methods 0.000 description 1
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
- B23K11/30—Features relating to electrodes
- B23K11/31—Electrode holders and actuating devices therefor
- B23K11/314—Spot welding guns, e.g. mounted on robots
- B23K11/315—Spot welding guns, e.g. mounted on robots with one electrode moving on a linear path
Landscapes
- Engineering & Computer Science (AREA)
- Robotics (AREA)
- Mechanical Engineering (AREA)
- Resistance Welding (AREA)
Description
【発明の詳細な説明】
本発明は、ばね平衡装置と電気抵抗点溶接用変
圧器とを有する、特に工業用ロボツトと共に使用
するための空気圧で駆動される溶接用挾み装置に
関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a pneumatically driven welding clamp apparatus having a spring balance device and an electrical resistance spot welding transformer, particularly for use with industrial robots.
このような溶接用挾み装置では、充分大きい電
極押圧力を得ることと、わずかな重量でこじんま
りした構造を得ることが問題となる。後者は、工
業用ロボツトと共に溶接用挾み装置を使用する場
合、可動質量をできるだけ小さくするため特に重
要である。 In such a welding clamping device, the problem is to obtain a sufficiently large electrode pressing force and to obtain a compact structure with a small weight. The latter is particularly important when using welding clamps with industrial robots in order to keep the movable mass as small as possible.
空気圧による電極駆動装置では、動作圧力が液
圧駆動装置に比して小さい。したがつて所望の大
きい電極押圧力は、往復動シリンダの有効ピスト
ン面積を大きくすることによつてのみ得られる。
しかしその結果往復動シリンダの直径が比較的大
きくなり、したがつて溶接用挾み装置が大きい重
量でかさばつた構造となる。 In pneumatic electrode drive devices, the operating pressure is lower than in hydraulic drive devices. The desired high electrode pressing force can therefore only be obtained by increasing the effective piston area of the reciprocating cylinder.
However, this results in a relatively large diameter of the reciprocating cylinder, which results in a heavy and bulky construction of the welding clamp device.
本発明によればこの問題は、駆動装置として並
列に作用する３つの往復動シリンダが設けられ、
これらシリンダのピストンが電極保持体を支える
横棒に結合されていることによつて異なるやり方
で解決される。 According to the invention, this problem is solved by providing three reciprocating cylinders acting in parallel as drives,
This is solved in a different way in that the pistons of these cylinders are connected to a crossbar that supports the electrode holder.
３つのピストンのなるべく同じ大きさに選ばれ
た直径は、同じ有効面積をもつ単一のピストンの
直径より著しく小さいので、溶接用挾み装置の全
高もそれに応じて小さくすることができる。しか
し本発明による溶接用挾み装置では、２つの付加
的な往復動シリンダが存在するが、これらはハウ
ジングを大きくすることなく収容される。 Since the preferably equally chosen diameters of the three pistons are significantly smaller than the diameter of a single piston with the same effective area, the overall height of the welding clamp can be correspondingly reduced. However, in the welding clamp device according to the invention there are two additional reciprocating cylinders, which can be accommodated without enlarging the housing.
本発明の実施例が図面に示されており、これに
ついて以下に説明する。 Embodiments of the invention are shown in the drawings and will be explained below.
１で示す枠は溶接用変圧器２と結合されてい
る。この枠１内には摺動レール３および４が設け
られ、これらレール上にハウジング５が移動可能
に設けられている。平衡ばね６と７および８と９
は、溶接用挾み装置の不動作状態でハウジング５
が特定の位置をとるようにしている。 The frame indicated by 1 is connected to a welding transformer 2. Sliding rails 3 and 4 are provided within this frame 1, and a housing 5 is movably provided on these rails. Balance springs 6 and 7 and 8 and 9
is when the housing 5 is in the inoperative state of the welding clamping device.
has a specific position.
ハウジング５内には３つの同じ往復動シリンダ
１０，１１および１２が設けられ、その同時に同
じ方向へ空気圧で動くことのできるピストン１
３，１４および１５は、横棒１６により互いに結
合されている。この横棒１６は電極１８をもつ電
極保持体１７を支えている。ハウジング５に設け
られた電極腕１９は対向電極２０の保持体として
役立つ。変圧器２は一方では電極保持体１７に、
他方では電極腕１９に導電接続されている。 Within the housing 5 there are provided three identical reciprocating cylinders 10, 11 and 12, a piston 1 which can be pneumatically moved simultaneously and in the same direction.
3, 14 and 15 are connected to each other by a crossbar 16. This horizontal bar 16 supports an electrode holder 17 with electrodes 18. An electrode arm 19 provided on the housing 5 serves as a holder for the counterelectrode 20 . The transformer 2 is connected to the electrode holder 17 on the one hand;
On the other hand, it is electrically connected to the electrode arm 19 .
本発明による溶接用挾み装置は、さらにそれが
４つの側で取付け可能であり、アダプタによりこ
れまで公知のあらゆる形式の工業用ロボツトに取
付け可能であるように構成されている。 The welding clamp device according to the invention is furthermore constructed in such a way that it can be mounted on four sides and, by means of an adapter, on all types of industrial robots known up to now.
溶接用挾み装置の動作の際、この挾み装置がロ
ボツトにより動かされて、溶接すべき工作物が電
極１８と２０との間にあるようにする。それから
ピストン１３，１４および１５が同時に空気圧に
より動かされるので、横棒１６が電極保持体１７
および電極１８と共に対向電極２０へ向かつて移
動し、溶接すべき工作物を圧縮する。その際平衡
ばね６と７および８と９は、ハウジング５したが
つて電極１８および２０を工作物の位置へ適合さ
せることができる。 During operation of the welding clamp, the clamp is moved by the robot so that the workpiece to be welded is between the electrodes 18 and 20. Pistons 13, 14 and 15 are then moved simultaneously by air pressure, so that crossbar 16 moves to electrode holder 17.
and moves together with the electrode 18 towards the counter electrode 20 to compress the workpiece to be welded. Balancing springs 6 and 7 and 8 and 9 can then adapt the housing 5 and therefore the electrodes 18 and 20 to the position of the workpiece.
第１図は本発明による溶接挾み装置の側面図、
第２図はその平面図である。
２…溶接用変圧器、６，７，８，９…平衡ば
ね、１０，１１，１２…往復動シリンダ、１３，
１４，１５…ピストン、１６…横棒、１７…電極
保持体、１８…電極、２０…対向電極。
FIG. 1 is a side view of a welding clamping device according to the present invention;
FIG. 2 is a plan view thereof. 2... Welding transformer, 6, 7, 8, 9... Balance spring, 10, 11, 12... Reciprocating cylinder, 13,
14, 15... Piston, 16... Horizontal bar, 17... Electrode holder, 18... Electrode, 20... Counter electrode.
Claims (1)
有する溶接用挾み装置において、駆動装置として
並列に作用する３つの往復動シリンダ１０，１
１，１２が設けられ、これらシリンダのピストン
１３，１４，１５が電極保持体１７を支える横棒
１６に結合されていることを特徴とする、特に工
業用ロボツトと共に使用するための空気圧で駆動
される溶接用挾み装置。 ２ ３つの往復動シリンダ１０，１１，１２のピ
ストン１３，１４，１５が同じ直径をもつている
ことを特徴とする、特許請求の範囲第１項に記載
の溶接用挾み装置。[Claims] 1. In a welding clamping device having a spring balance device and a transformer for electric resistance spot welding, three reciprocating cylinders 10, 1 act in parallel as drive devices.
1, 12 are provided, the pistons 13, 14, 15 of these cylinders being connected to a crossbar 16 supporting an electrode holder 17, pneumatically driven, especially for use with industrial robots. Welding clamping device. 2. Welding clamp device according to claim 1, characterized in that the pistons 13, 14, 15 of the three reciprocating cylinders 10, 11, 12 have the same diameter.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE8203736.1 | 1982-02-11 | ||
| DE19828203736 DE8203736U1 (en) | 1982-02-11 | 1982-02-11 | Pneumatically driven welding gun |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS58138579A JPS58138579A (en) | 1983-08-17 |
| JPS6111715B2 true JPS6111715B2 (en) | 1986-04-04 |
Family
ID=6736969
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP57191996A Granted JPS58138579A (en) | 1982-02-11 | 1982-11-02 | Gripper for welding driven by pneumatic pressure |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JPS58138579A (en) |
| DE (1) | DE8203736U1 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0421662Y2 (en) * | 1986-01-10 | 1992-05-18 | ||
| DE3707572C2 (en) * | 1987-03-10 | 1997-03-20 | Lothar Leinweber | Pneumatically operated welding gun for electrical resistance spot welding |
-
1982
- 1982-02-11 DE DE19828203736 patent/DE8203736U1/en not_active Expired
- 1982-11-02 JP JP57191996A patent/JPS58138579A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| DE8203736U1 (en) | 1982-07-01 |
| JPS58138579A (en) | 1983-08-17 |
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