DE612275C - Automatic welding machine for carbon arc welding - Google Patents
Automatic welding machine for carbon arc weldingInfo
- Publication number
- DE612275C DE612275C DES98069D DES0098069D DE612275C DE 612275 C DE612275 C DE 612275C DE S98069 D DES98069 D DE S98069D DE S0098069 D DES0098069 D DE S0098069D DE 612275 C DE612275 C DE 612275C
- Authority
- DE
- Germany
- Prior art keywords
- intermediate piece
- power supply
- welding machine
- coal
- automatic 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
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
- B23K9/24—Features related to electrodes
- B23K9/28—Supporting devices for electrodes
- B23K9/282—Electrode holders not supplying shielding means to the electrode
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Mechanical Engineering (AREA)
- Arc Welding In General (AREA)
Description
Die Erfindung betrifft einen. Schweißautomaten für Kohlelichtbogenschweißung, bei dem die Stromzuführung in unmittelbarer Nähe des Brennendes der Kohle mittels einer gegebenenfalls wassergekühlten Klemme erfolgt. Die Kohle wird durch ein Nachschubwerk dem Abbrand entsprechend vorgeschoben. Der Vorschub wird gesteuert in Abhängigkeit von der Lichtbogenspannung, die zwischen Werkstück und der Stromzuf Ührungsklemme abgenommen wird.The invention relates to a. Automatic welding machines for carbon arc welding, at which the power supply in the immediate vicinity of the burning end of the coal by means of a optionally water-cooled clamp takes place. The coal is fed by a supply plant advanced according to the burnup. The feed is controlled in dependence from the arc voltage between the workpiece and the power supply terminal is removed.
Erfindungsgemäß besteht die in unmittelbarer Nähe des Brennendes der Kohle angebrachte StromzTiführungsklemme aus einem Mundstück mit radial verlaufendem Ausschnitt, in den ein auf die Kohle drückender Finger eingreift.According to the invention, there is the one attached in the immediate vicinity of the burning end of the coal Power supply terminal from a mouthpiece with a radially extending cutout, into which a finger pressing on the coal is engaged.
Die Erfindung soll an Hand des in der Zeichnung 'dargestellten Beispieles näher erläutert werden.The invention is to be explained in more detail with reference to the example shown in the drawing will.
An dem Träger 1 ist der Getriebekasten 2 mit dem Zwischenstück 3 und dem Mundstück 4 befestigt. Das Mundstück 4, das, wie Fig. 2 zeigt, einen radialen Ausschnitt 5 hat, bildet den enjen Teil, der Finger 6, der um die untere Stirnseite des Zwischenstückes 3 herumgekröpft ist, den anderen Teil der Stromzange. Der Finger 6 wird unter der Einwirkung der Feder 7 gegen die Kohle 8 gepreßt, die die Form eines langen Stabes hat. Mundstück und Finger sind in an sich bekannter Weise hohl ausgeführt und von Kühlwasser durchflossen. Der Finger 6 umgreift mit einer Gabel 9 das Zwischenstück 3 und ist um eine "wenigstens annähernd durch die Kohle 8 gehende Achse 10 schwenkbar gelagert. 11 ist die Stromzuführung für die Stromzange, 12 ist eine am Getriebekasten 13 befestigte Düse zur Zuführung des Zusatz-Schweißdrahtes 14. 15 ist das zu schweißende Werkstück.The gear box 2 with the intermediate piece 3 and the mouthpiece 4 is fastened to the carrier 1. The mouthpiece 4, which, as FIG. 2 shows, has a radial cutout 5, forms the one part, the finger 6, which is bent around the lower end face of the intermediate piece 3, the other part of the current clamp. The finger 6 is pressed under the action of the spring 7 against the carbon 8, which has the shape of a long rod. The mouthpiece and fingers are designed to be hollow in a manner known per se, and cooling water flows through them. The finger 6 with a fork 9 engages around the intermediate piece 3 and is pivotably mounted about an axis 10 that extends at least approximately through the carbon 8. 11 is the power supply for the current clamp, 12 is a nozzle attached to the gear box 13 for supplying the additional welding wire 14. 15 is the workpiece to be welded.
Die Kohle 8 sitzt in dem konischen Spannfutter 16, das aus zwei gegeneinander verschiebbaren Rohren 17, 18 besteht, 19 ist die aus dem Gehäuse 2 herausragende Vorrichtung zum Anziehen und Lockern des Spannfutters. Das Rohr 18 ist mit einer Zahnstange 20 versehen, in. die das von einem Elektromotor angetriebene Vorschubrad 21 eingreift. Dieser Motor wird durch ein Spannungsrelais gesteuert, das zwischen dem Werkstück 15 und dem Mundstück 4 eingeschaltet ist. Da derartige Steuereinrichtungen an sich bekannt sind, sind sie in der Zeichnung der Einfachheit halber weggelassen.The coal 8 sits in the conical chuck 16, which consists of two mutually displaceable Pipes 17, 18 consists, 19 is the device protruding from the housing 2 for tightening and loosening the chuck. The tube 18 is with a Toothed rack 20 is provided, in which the feed wheel 21, which is driven by an electric motor intervenes. This motor is controlled by a voltage relay that is placed between the workpiece 15 and the mouthpiece 4 is switched on. Since such control devices per se are known, they are omitted from the drawing for the sake of simplicity.
Die unmittelbare Stromzuführung am Brennende des Stabes, die an sich bekannt ist, hat den Vorteil, daß die Verluste durch Stromleitung in der Kohle sehr klein ausfallen, die Kohle infolgedessen praktisch nur durch den Lichtbogen erhitzt wird, und daß die Lichtbogenspannung durch ein am Werkstück und an der Stromzange angeschlossenes Relais, das in an sich bekannter Weise den Vorschub der Kohle steuert, unter Ausschaltung zusätzlicher Spannungsabfälle gemessen werden kann, so daß also der Automat stets auf konstante Lichtbogenlänge durch entsprechenden Vorschub der Kohle einreguliert wird.The direct power supply at the end of the fire of the rod, which is known per se, has the advantage that the losses due to power conduction turn out to be very small in the coal, the coal as a result practically only through the The arc is heated, and that the arc voltage by a on the workpiece and Relay connected to the clamp meter, which controls the feed in a manner known per se the coal controls, can be measured with the elimination of additional voltage drops can, so that the automaton always on a constant arc length by appropriate Feed of the coal is regulated.
Claims (3)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DES98069D DE612275C (en) | Automatic welding machine for carbon arc welding |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DES98069D DE612275C (en) | Automatic welding machine for carbon arc welding |
Publications (1)
Publication Number | Publication Date |
---|---|
DE612275C true DE612275C (en) | 1935-04-17 |
Family
ID=7521198
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DES98069D Expired DE612275C (en) | Automatic welding machine for carbon arc welding |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE612275C (en) |
-
0
- DE DES98069D patent/DE612275C/en not_active Expired
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