DE670515C - Automatic electrical flash welding machine, in which the feed mechanism for the workpiece is designed in the manner of an arc lamp set of rules - Google Patents
Automatic electrical flash welding machine, in which the feed mechanism for the workpiece is designed in the manner of an arc lamp set of rulesInfo
- Publication number
- DE670515C DE670515C DES116429D DES0116429D DE670515C DE 670515 C DE670515 C DE 670515C DE S116429 D DES116429 D DE S116429D DE S0116429 D DES0116429 D DE S0116429D DE 670515 C DE670515 C DE 670515C
- Authority
- DE
- Germany
- Prior art keywords
- arc lamp
- relay
- workpiece
- rules
- machine according
- 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
- B23K11/24—Electric supply or control circuits therefor
- B23K11/25—Monitoring devices
- B23K11/251—Monitoring devices using analog means
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Arc Welding Control (AREA)
- Pressure Welding/Diffusion-Bonding (AREA)
Description
Gegenstand des Patents 489 012 ist eine selbsttätige elektrische Abbrennschweißmaschine mit einer Vorrichtung, die nach Erhitzung des Werkstückes bis zur Schweißbarkeit selbsttätig den Stauchschub des Nachschubwerkes und die Abschaltung des Schweißstromes bewirkt und dadurch den Schweißvorgang beendet. Die Maschine-hat ein Vorschubwerk, das nach Art eines Bogenlampenregelwerkes ausgeführt ist, und eine als Meßlehre bezeichnete Vorrichtung zur Auslösung des Stauchschubes, die mit dem Erhitzungswerk und dem Nachschubwerk der Maschine so verbunden ist, daß die Glieder der Meßlehre durch ihre Bewegung gegeneinander den fortschreitenden Abbrand des Werkstückes abbilden und bei einer bestimmten Relativlage, die dem erforderlichen Gesamtabbrand des Werkstückes entspricht, das Nachschubwerk für die Ausführung des Stauchschubes umschalten.The subject of patent 489 012 is an automatic electric flash welding machine with a device that, after the workpiece has been heated, is ready for welding automatically the upsetting of the feed mechanism and the switching off of the welding current causes and thereby terminates the welding process. The machine has a feed mechanism which is designed in the manner of an arc lamp set of rules, and a device called a measuring gauge for triggering of the upsetting feed, the one with the heating unit and the supply unit of the machine is so connected that the members of the measuring gauge by their movement against each other the map the progressive burn-off of the workpiece and, in a certain relative position, which corresponds to the required total burn-off of the workpiece, the feed mechanism toggle for the execution of the upset thrust.
Wird mit einer derartigen Maschine ein Werkstück geschweißt, so geht dem eigentlichen Abbrennvorgang die sogenannte Vorwärme- oder Pumpbewegung voraus, bei der wiederholt ein Lichtbogen entsteht und wieder erlischt. Der eigentliche Abbrennvorgang setzt erst dann ein, wenn eine Stelle des Werkstückes die für den Abbrennvorgang notwendige Temperatur erreicht hat.If a workpiece is welded with such a machine, then the actual work goes Burning process is preceded by the so-called preheating or pumping movement, during which an arc is repeatedly created and again goes out. The actual burning process only begins when a point of the Workpiece has reached the temperature required for the burn-off process.
Haben nun die zu verschweißenden Querschnitte vorspringende Teile o. dgl., dann setzt häufig der Abbrennvorgang zu früh, d. h. bereits dann ein, wenn lediglich die vorspringenden Teile, nicht aber der gesamte Querschnitt die Abbrenntemperatur erreicht haben.If the cross-sections to be welded have protruding parts or the like, then the burning process often starts too early, d. H. already a when only the protruding Parts, but not the entire cross-section, have reached the burning temperature.
Die Erfindung beseitigt diesen Mangel.The invention overcomes this deficiency.
Nach der Erfindung wird zur Erzielung einer genügend langen Pumpbewegung, d. h. Vorwärmung, das Relais des Bogenlampenregelwerks selbsttätig durch ein vom Schweißschlitten, Laufwerk o. dgl. betätigtes Organ während der Anwärmezeit auf eine andere Empfindlichkeit, Trägheit, Dämpfung o. dgl. eingestellt als während des übrigen Schweißvorgangs. Vor Beginn der Anwärmezeit wird das Bogenlampenregelwerk so eingestellt, daß es beim Zusammenstoßen der Werkstücksteile mit Sicherheit in die eine der Rückwärtsbewegung des Nachschubmotors entsprechende, nach dem Auseinanderziehen derAccording to the invention, in order to achieve a sufficiently long pumping movement, i. H. Preheating, the relay of the arc lamp control system automatically by a from the welding carriage, Drive o. The like. Actuated organ during the warm-up time to another Sensitivity, inertia, damping or the like are set than during the rest of the welding process. Before the start of the warm-up time, the arc lamp control system is set in such a way that it does so when the workpiece parts collide with certainty in the one corresponding to the backward movement of the feed motor, after pulling the
*) Von dem Patentsucher ist als der Erfinder angegeben worden:*) The patent seeker stated as the inventor:
Georg Hof mann in Nürnberg.Georg Hofmann in Nuremberg.
Werkstücke in die andere der Vorwärtsbewegung des Nachschubmotors entsprechende Endstellung gelangt, während der Abbrennzeit dagegen vorwiegend in der Schwebe bleibt. ■ ·Workpieces in the other corresponding to the forward movement of the feed motor Reaches its end position, while it remains mostly in suspension during the burn-off time. ■ ·
Beispielsweise kann zur Regelung der Frequenz und Amplitude der Pumpbewegung das Relais des Lampenregelwerks mit einer von Hand zu betätigenden Einstellvorrichtung für ίο die Trägheit, den Ankerweg, die Dämpfung o. dgl. versehen sein. Ist das Relais des Bogenlampenregelwerks ein Spannungsrelais, so wird es vorteilhaft unter Zwischenschaltung eines regelbaren Transformators an die Werkstückselektroden angeschlossen, damit durch Transformation die Elektrodenspannung auf für das Relais günstige Spannungswerte gebracht werden kann. Unter Umständen empfiehlt sich bei Wechselstromschweißmaschinen die Zwischenschaltung eines Trokkengleichrichters zwischen Transformator und Relais.For example, to regulate the frequency and amplitude of the pumping movement, the Relay of the lamp control system with a manually operated setting device for ίο the inertia, the anchor travel, the damping o. The like. Be provided. Is the relay des Arc lamp set of rules a voltage relay, so it is advantageous with interconnection a controllable transformer connected to the workpiece electrodes so that the electrode voltage can be brought to voltage values that are favorable for the relay by transformation. In certain circumstances We recommend connecting a dry rectifier for AC welding machines between transformer and relay.
Zwecks Änderung der Empfindlichkeit bzw. der Ansprechgrenze des Relais wird dieses an einen Spannungsteiler gelegt, dessen Anzapfpunkte selbsttätig beim Übergang von der Anwärme- auf die Abbrennbewegung geändert werden. Die gleiche Änderung läßt sich auch durch Überbrücken von Widerstandsteilen des Spannungsteilers erzielen.In order to change the sensitivity or the response limit of the relay, this placed on a voltage divider, the tapping points of which automatically when the transition from the Warming up to the burning movement can be changed. The same change can also be made by bridging resistor parts of the voltage divider.
Arbeitet das Relais des Bogenlampenregelwerks in Abhängigkeit vom Schweißstrom oder außerdem noch in Abhängigkeit von der Spannung, so kann der vom Strom abhängige Teil des Relais selbsttätig in seiner Empfindlichkeit, Trägheit oder Ansprechgrenze durch Änderung von Parallelwiderständen, Änderimg der Windungszahlen, Zu- und Abschalten von Gegen- oder Zusatzwindungen umgesteuert werden.Does the relay of the arc lamp control system work depending on the welding current or also as a function of the voltage, the one that is dependent on the current can be Part of the relay automatically in its sensitivity, inertia or response limit Change of parallel resistances, change of the number of turns, connection and disconnection be reversed by counter or additional turns.
Claims (4)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DES81809D DE489012C (en) | 1927-09-24 | 1927-09-24 | Automatic electrical flash welding machine |
DES116429D DE670515C (en) | 1927-09-24 | 1933-07-02 | Automatic electrical flash welding machine, in which the feed mechanism for the workpiece is designed in the manner of an arc lamp set of rules |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DES81809D DE489012C (en) | 1927-09-24 | 1927-09-24 | Automatic electrical flash welding machine |
DES116429D DE670515C (en) | 1927-09-24 | 1933-07-02 | Automatic electrical flash welding machine, in which the feed mechanism for the workpiece is designed in the manner of an arc lamp set of rules |
Publications (1)
Publication Number | Publication Date |
---|---|
DE670515C true DE670515C (en) | 1939-01-20 |
Family
ID=32657658
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DES81809D Expired DE489012C (en) | 1927-09-24 | 1927-09-24 | Automatic electrical flash welding machine |
DES116429D Expired DE670515C (en) | 1927-09-24 | 1933-07-02 | Automatic electrical flash welding machine, in which the feed mechanism for the workpiece is designed in the manner of an arc lamp set of rules |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DES81809D Expired DE489012C (en) | 1927-09-24 | 1927-09-24 | Automatic electrical flash welding machine |
Country Status (1)
Country | Link |
---|---|
DE (2) | DE489012C (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE953375C (en) * | 1943-10-13 | 1956-11-29 | Aeg | Method for setting a resistance-burn-off welding machine to the finest possible spray |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE966151C (en) * | 1938-01-18 | 1957-07-18 | Aeg | Process for automatic flash-off welding with preheating |
DE950084C (en) * | 1952-04-26 | 1956-10-04 | Wilhelm Mantel Dr Ing | Process for flash welding |
DE1088630B (en) * | 1958-10-21 | 1960-09-08 | Friedrich Henze G M B H Maschf | Control device for resistance burn-off butt welding machines |
-
1927
- 1927-09-24 DE DES81809D patent/DE489012C/en not_active Expired
-
1933
- 1933-07-02 DE DES116429D patent/DE670515C/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE953375C (en) * | 1943-10-13 | 1956-11-29 | Aeg | Method for setting a resistance-burn-off welding machine to the finest possible spray |
Also Published As
Publication number | Publication date |
---|---|
DE489012C (en) | 1930-01-11 |
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