DE367075C - Electrode for electric welding machines to hold bolts, namely screw bolts, when butt welding them against plate-shaped objects - Google Patents
Electrode for electric welding machines to hold bolts, namely screw bolts, when butt welding them against plate-shaped objectsInfo
- Publication number
- DE367075C DE367075C DEH87797D DEH0087797D DE367075C DE 367075 C DE367075 C DE 367075C DE H87797 D DEH87797 D DE H87797D DE H0087797 D DEH0087797 D DE H0087797D DE 367075 C DE367075 C DE 367075C
- Authority
- DE
- Germany
- Prior art keywords
- bolts
- electrode
- shaped objects
- against plate
- electric 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
- B23K11/00—Resistance welding; Severing by resistance heating
- B23K11/30—Features relating to electrodes
Description
Bei gewissen Arbeiten mit der elektrischen Schweißmaschine, so namentlich bei dem Stumpfanschweißen von Gewindebolzen an plattenförmigen Gegenständen, wie Heizplatten 5 o. dgl., besteht eine besondere Schwierigkeit darin, den Bolzen derart zu fassen, daß die Elektrode überall an seinem Außengewindemantel innig anliegt, weil nur dann ein guter Stromübergang an allen Stellen des Mantels ίο gewährleistet wird.When doing certain work with the electrical Welding machine, especially for the butt welding of threaded bolts on plate-shaped objects such as heating plates 5 o. The like., There is a particular difficulty in grasping the bolt in such a way that the Electrode lies tightly everywhere on its outer thread jacket, because only then is it a good one Current transfer at all points of the jacket ίο is guaranteed.
Diese Schwierigkeit wird erfindungsgemäß dadurch überwunden, daß die Elektrode als ein sich den Unregelmäßigkeiten des Schweißgutes von selbst anpassendes Spannfutter ausgebildet ist. Hierzu besteht die Elektrode aus einer Hülse mit kugeliger Bohrung und einer Anzahl von in diese einsetzbaren, radial verschiebbaren Kegelausschnitten mit sich zu einem Zylinder aneinanderfügender Innengewindebohrung, in die der anzuschweißende Gewindebolzen eingeklemmt wird. Da die Kegelausschnitte radial verschiebbar sind, können sie gewissen Unregelmäßigkeiten in der Außengestalt des Schweißgutes Rechnung tragen. Vorteilhaft sind die Kegelausschnitte in einem Tragring nach allen Richtungen pendelnd aufgehängt, so daß sie von der Kegelbohrung der Hülse gegeneinander und gegen das Schweißgut gepreßt werden, beim Entfernen aus der Hülse aber infolge ihres Eigengewichte in die Senkrechtlage übergehen und damit das bis dahin eingespannte Schweißgut selbsttätig freigeben.This difficulty is overcome according to the invention in that the electrode as a chuck that adapts itself to the irregularities of the weld metal is formed is. For this purpose, the electrode consists of a sleeve with a spherical bore and a Number of radially displaceable cone cutouts that can be inserted into this a cylinder adjoining internal threaded hole into which the to be welded Threaded bolt is jammed. Since the cone sections can be moved radially, they can account for certain irregularities in the external shape of the weld metal wear. The conical cutouts in a support ring are advantageous in all directions suspended so that they are against each other and from the conical bore of the sleeve are pressed against the weld metal, but when removing from the sleeve as a result of it Dead weights move into the vertical position and with it the weld metal that was clamped up to that point release automatically.
Diese Ausführungsform des Erfindungsgegen-Standes ist in der Zeichnung beispielsweise dargestellt. This embodiment of the subject matter of the invention is shown in the drawing, for example.
Abb. ι ist ein Längsschnitt und Abb. 2 eine Draufsicht der Elektrode in Arbeitsstellung. Fig. Ι is a longitudinal section and Fig. 2 is a plan view of the electrode in the working position.
Abb. 3 und 4 sind entsprechende Darstellungen nach Freigabe des Schweißgutes.Fig. 3 and 4 are corresponding representations after approval of the weld metal.
Die Elektrode besteht aus der Spannhülse a und dem Spannfutter δ1, δ2, δ3, δ4. Die Hülse a hat eine kegelige Bohrung d. Die einzelnen das Spannfutter bildenden Backen δ1, δ2 ... haben eine kegelige Außengestalt von gleicher Neigung wie die Bohrung d der Hülse α und eine zylindrische Innenbohrung e, insbesondere Innengewinde, wenn es sich um das Einspannen von Schraubbolzen f handelt. Die Backen δ1, δ2... so werden mittels radial durch einen Tragring g geschraubter Stifte i in Radialbohrungen k derart gehalten, daß sie sich radial verschieben und um die Stifte i pendeln können.The electrode consists of the clamping sleeve a and the chuck δ 1 , δ 2 , δ 3 , δ 4 . The sleeve a has a tapered bore d. The individual chuck forming jaws δ 1, δ 2 ... have a tapered external form of the same inclination as the bore d of the sleeve α and a cylindrical inner bore e, in particular an internal thread, if it is f around the clamping bolts. The jaws δ 1, δ 2 ... so screwed pins are in radial bores i k so held that they move radially and can i oscillate around the pins by means of radially g by a support ring.
Zum Gebrauch wird der Schraubbolzen f in die mittlere Öffnung & des Spannfutters gesteckt und dieses in die Kegelbohrung d der Hülse α eingesetzt. Dadurch werden die einzelnen Backen unabhängig voneinander gegen den Außenmantel des Bolzens gedrängt und überall zum dichten Anliegen an dessen Mantel gezwungen, wodurch durchweg ein guter Stromübergang gewährleistet wird.For use, the screw bolt f is inserted into the central opening & of the chuck and this is inserted into the tapered bore d of the sleeve α . As a result, the individual jaws are pressed independently of one another against the outer jacket of the bolt and are forced to lie tightly against the jacket everywhere, which ensures a good current transfer throughout.
Nach erfolgter Schweißung wird das Schweißgut angehoben, wobei das Spannfutter zunächst mitgeht, sich also von seiner Hülse löst. Dann aber kommt das Eigengewicht der einzelnen Backen δ1, δ2 ... zur Geltung, die sich um ihre Stifte i drehen und neigen können, so daß diese den bis dahin festgehaltenen Schraubbolzen freigeben (Abb. 3 und 4).After the welding has been carried out, the weld metal is lifted, the chuck initially moving with it, i.e. being released from its sleeve. But then the dead weight of the individual jaws δ 1 , δ 2 ... comes into play, which can rotate and tilt around their pins i , so that they release the screw bolts that were held up until then (Figs. 3 and 4).
Claims (3)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEH87797D DE367075C (en) | Electrode for electric welding machines to hold bolts, namely screw bolts, when butt welding them against plate-shaped objects |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEH87797D DE367075C (en) | Electrode for electric welding machines to hold bolts, namely screw bolts, when butt welding them against plate-shaped objects |
Publications (1)
Publication Number | Publication Date |
---|---|
DE367075C true DE367075C (en) | 1923-01-16 |
Family
ID=7165086
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DEH87797D Expired DE367075C (en) | Electrode for electric welding machines to hold bolts, namely screw bolts, when butt welding them against plate-shaped objects |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE367075C (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1223079B (en) * | 1962-03-21 | 1966-08-18 | Siemens Ag | Tool for clamping workpieces that are to be connected in particular by projection welding |
-
0
- DE DEH87797D patent/DE367075C/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1223079B (en) * | 1962-03-21 | 1966-08-18 | Siemens Ag | Tool for clamping workpieces that are to be connected in particular by projection welding |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE367075C (en) | Electrode for electric welding machines to hold bolts, namely screw bolts, when butt welding them against plate-shaped objects | |
DE477084C (en) | Tool steel body for welding plates made of tool steel to their carrier by friction on the plate carrier | |
DE3216287C2 (en) | Pipe end upsetting press | |
DE2327365A1 (en) | DEVICE FOR ALIGNING A FLANGE WITH THE AXIS OF A PIPE TO BE WELDED | |
EP0230614B1 (en) | Method and apparatus for joining a hollow body to an inner body | |
DE367095C (en) | Device for welding pipes together by means of electric arc welding | |
DE736329C (en) | Device for heating by means of an electrical heating current and subsequent bending of tubes | |
DE492741C (en) | Clamping device for rods with heads for tensile strength testing | |
DE517913C (en) | Process for the rotating pressure of decorative tubes from a tubular workpiece | |
EP0423425A1 (en) | Collet chuck for automatic machine tools | |
DE102017116570A1 (en) | Stretching and stretching mill | |
DE574751C (en) | On a guide rod along adjustable electrical lighting device for knitting and similar machines | |
DE131037C (en) | ||
DE102018114470B4 (en) | Pressure welding device and pressure welding process | |
DE733083C (en) | Method for manufacturing a cable head on carbon cables for electrical machines | |
DE453914C (en) | Lifting and straightening tool, especially for enamelled dishes | |
DE358052C (en) | Casting mold for casting shafts on broken twist drills | |
DE1106891B (en) | Resistance butt welding device for crankshafts and procedures for it | |
DE933524C (en) | Chuck for arc lamp charcoal | |
DE653850C (en) | Pliers for carrying sheet metal, plates, etc. | |
DE938141C (en) | Method and device for the tight connection of pipes with plates or adjacent pipes | |
DE1765353B1 (en) | Clamping device for locking a hydraulically, pneumatically or electrically axially movable piston rod, in particular on electrically abrasive machines | |
CH310571A (en) | Method and device for the production of pressed parts or the like with a unit weight of up to 20 g. | |
DE363833C (en) | Device for heating forgings u. Like. By electrical resistance heating | |
DE2154192C3 (en) | Device for electro upsetting |