DE617228C - Clamping device for workpieces that are welded with the electric arc - Google Patents
Clamping device for workpieces that are welded with the electric arcInfo
- Publication number
- DE617228C DE617228C DE1930617228D DE617228DD DE617228C DE 617228 C DE617228 C DE 617228C DE 1930617228 D DE1930617228 D DE 1930617228D DE 617228D D DE617228D D DE 617228DD DE 617228 C DE617228 C DE 617228C
- Authority
- DE
- Germany
- Prior art keywords
- clamping device
- workpiece
- workpieces
- clamping
- welded
- 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
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
- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
- B23K37/04—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work
- B23K37/0426—Fixtures for other work
- B23K37/0452—Orientable fixtures
Landscapes
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing Of Electrical Connectors (AREA)
Description
DEUTSCHES REICHGERMAN EMPIRE
AUSGEGEBEN AM 15. AUGUST 1935ISSUED ON AUGUST 15, 1935
REICHSPATENTAMTREICH PATENT OFFICE
PATENTSCHRIFTPATENT LETTERING
KLASSE 21h GRUPPE 30 ίοCLASS 21h GROUP 30 ίο
Beim Schweißen von beispielsweise langgestreckten Werkstücken mit einer oder mehreren in der Längsrichtung verlaufenden Schweißfugen kann man erfahrungsgemäß an einzelnen Stellen eines Schweißstückes nur dann einen stabilen Lichtbogen erzielen, wenn man mit der Anschlußzwinge sich in einer bestimmten Entfernung vom Lichtbogen hält. Die Anschlußzwinge muß deshalb bei jeder Schweißung jeweils in die für den Lichtbogen günstigste Stellung gebracht werden. Wird das Werkstück bei der Schweißung in eine besondere Vorrichtung eingeklemmt und der Strom der Einklemmvorrichtung oder demWhen welding elongated workpieces with one or more, for example Experience has shown that welding joints running in the longitudinal direction can be assumed A stable arc can only be achieved at individual points of a welding piece if the clamp is used to keep a certain distance from the arc. The connection clamp must therefore be inserted into the one for the arc with each weld the most favorable position. When the workpiece is welded into a particular device clamped and the current of the clamping device or the
Werkstück durch eine besondere Klemmvorrichtung zugeführt, so lassen sich in der Regel nicht mehr an allen Stellen günstigste Lichtbogenverhältnisse erzielen.Workpiece fed through a special clamping device, so can usually no more favorable arcing conditions at all points achieve.
Die Erfindung geht von der Erkenntnis aus, daß diese ungünstigen Verhältnisse einerseits auf die Stromleitung der mechanischen Einspannvorrichtung, anderseits auf deren unmittelbar an das Werkstück anstoßende Eisenmassen zurückzuführen sind.The invention is based on the knowledge that these unfavorable conditions on the one hand on the power line of the mechanical clamping device, on the other hand directly on its iron masses adjoining the workpiece are to be traced back.
Erfindungsgemäß werden diese Einflüsse dadurch beseitigt, daß die Klemmvorrichtung für die mechanische Befestigung des Werkstückes durch Zwischenlegen von Isolierstücken zwischen Klemmvorrichtung und Werkstück, durch Isolieren der Klemmvorrichtung oder durch Verwendung von Klemmvorrichtungen aus isolierendem Material von der Stromzuleitung zum Werkstück ausgeschaltet wird.According to the invention, these influences are eliminated in that the clamping device for the mechanical fastening of the workpiece by inserting insulating pieces between clamping device and workpiece, by isolating the clamping device or by using clamping devices made of insulating material is switched off from the power supply line to the workpiece.
Beispielsweise kann man die isolierenden Zwischenlagen aus Asbest, Micanitschiefer o. dgl. herstellen. Statt dessen kann auch die Klemmvorrichtung ganz oder teilweise aus nicht leitendem unmagnetischem Material, wie Holz, bestehen.For example, you can use the insulating intermediate layers made of asbestos, micanite slate or the like. Instead, the clamping device can also be completely or partially off non-conductive, non-magnetic material such as wood.
Eine weitere wesentliche Verbesserung der Stabilität des Lichtbogens kann schließlich noch dadurch erreicht werden, daß man die Stromzuf ührungsklemme, namentlich bei langgestreckten oder auch sternförmigen Werkstücken, mit wenigstens einer in der Längsrichtung verlaufenden Schweißfuge in der Mitte oder annähernd in der Mitte zwischen den eingespannten Enden des Werkstückes anschließt.Another significant improvement in the stability of the arc can eventually can still be achieved by using the power supply terminal, especially with elongated or star-shaped workpieces, with at least one in the longitudinal direction running weld joint in the middle or approximately in the middle between the clamped ends of the workpiece connects.
Die Erfindung soll an Hand des in der Zeichnung dargestellten Beispiels näher erläutert werden.The invention is to be explained in more detail using the example shown in the drawing will.
Auf dem Werktisch 1 ist mittels der Klemmvorrichtungen 2, 3 ein Differentialgehäuse 4 für Automobile eingespannt. Die in der Längsrichtung des Werkstückes verlaufenden Fugen 5 sollen mittels des Schweißkopfes 6 zugeschweißt werden. 7 ist die Anschlußklemme des Werkstückpoles.On the workbench 1 is a differential housing by means of the clamping devices 2, 3 4 clamped for automobiles. Those running in the longitudinal direction of the workpiece Joints 5 are to be welded shut by means of the welding head 6. 7 is the connector of the workpiece pole.
Erfindungsgemäß sind zwischen die Druckstempel der Einspannvorrichtungen 2, 3 undAccording to the invention are between the plungers of the clamping devices 2, 3 and
*/ Von dem Patentsucher ist als der Erfinder angegeben worden: * / The patent seeker stated as the inventor:
Hermann Wagner in Nürnberg.Hermann Wagner in Nuremberg.
das Werkstück 4 Zwischenlagen 8 aus mechanisch widerstandsfähigem Isoliermaterial eingeschaltet. the workpiece 4 switched between layers 8 made of mechanically resistant insulating material.
Die elektrisch- und -magnetisch isolierende Einspannung bietet den Vorteil, daß der Schweißer durch entsprechende Verlegung der Anschlußklemme 7 willkürlich, wie bei Nichtvorhandensein der Einspannvorrichtung, die Strom- und Magnetverhältnisse im Werkstück auf den jeweils günstigsten Wert einstellen kann.The electrically and magnetically isolating clamping offers the advantage that the Welder by relocating the connection terminal 7 arbitrarily, as in the absence of it the clamping device, set the current and magnet conditions in the workpiece to the most favorable value in each case can.
Claims (4)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE617228T | 1930-12-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE617228C true DE617228C (en) | 1935-08-15 |
Family
ID=6577064
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE1930617228D Expired DE617228C (en) | 1930-12-20 | 1930-12-20 | Clamping device for workpieces that are welded with the electric arc |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE617228C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2529123A1 (en) * | 1982-06-23 | 1983-12-30 | Gendarme Bernard | Earth connection for electric welding - where earthing plate is clamped to ferrous metal workpiece by permanent magnet which does not touch workpiece |
-
1930
- 1930-12-20 DE DE1930617228D patent/DE617228C/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2529123A1 (en) * | 1982-06-23 | 1983-12-30 | Gendarme Bernard | Earth connection for electric welding - where earthing plate is clamped to ferrous metal workpiece by permanent magnet which does not touch workpiece |
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