DE202004020166U1 - Welding device comprises one electrode having a stamp protruding in the adjusting direction via the electrode front wall to deform a workpiece on the welding site - Google Patents
Welding device comprises one electrode having a stamp protruding in the adjusting direction via the electrode front wall to deform a workpiece on the welding site Download PDFInfo
- Publication number
- DE202004020166U1 DE202004020166U1 DE202004020166U DE202004020166U DE202004020166U1 DE 202004020166 U1 DE202004020166 U1 DE 202004020166U1 DE 202004020166 U DE202004020166 U DE 202004020166U DE 202004020166 U DE202004020166 U DE 202004020166U DE 202004020166 U1 DE202004020166 U1 DE 202004020166U1
- Authority
- DE
- Germany
- Prior art keywords
- welding
- insulator
- workpieces
- electrode
- workpiece
- 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 - Lifetime
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
- 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
-
- 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
- B23K2101/00—Articles made by soldering, welding or cutting
- B23K2101/16—Bands or sheets of indefinite length
Landscapes
- Engineering & Computer Science (AREA)
- Robotics (AREA)
- Mechanical Engineering (AREA)
- Resistance Welding (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
Abstract
Description
Die Erfindung betrifft eine Schweißvorrichtung und ein Schweißteil mit den Merkmalen im Oberbegriff des Hauptanspruchs.The The invention relates to a welding device and a welded part with the features in the preamble of the main claim.
Aus der Praxis sind Impuls-Schweißverfahren mit Presskrafteinwirkung auf die zu verschweißenden Bauteile bekannt, z.B. als konventionelle Kondensatorentladungs-Schweißverfahren nebst zugehörigen Schweißvorrichtungen. Bei solchen Impuls-Schweißverfahren werden die zusammen gepressten Werkstücke von einem Impulsstrom durchflossen, wobei sie am Kontaktbereich in einen teigigen Zustand übergehen und sich miteinander verbinden. Um eine ausreichend hohe Stromkonzentration zu erreichen, werden die Kontaktstellen der Werkstücke möglichst klein gehalten, wobei z.B. ein Punkt- oder Linienkontakt besteht. Bei Blechen werden zu diesem Zweck an ein oder beiden Blechen in einer Bauteilvorbereitung Buckel angebracht oder angeformt bzw. eingeformt. Dies erfordert einen zusätzlichen Aufwand.Out In practice, impulse welding processes with a compressive force acting on the components to be welded, e.g. as conventional capacitor discharge welding methods and associated welding devices. In such pulse welding process the pressed-together workpieces flow through a pulse current, whereby they pass over a doughy state at the contact area and connect with each other. To a sufficiently high current concentration too reach the contact points of the workpieces are kept as small as possible, wherein e.g. there is a point or line contact. When sheets are to this Purpose on one or both sheets in a component preparation hump attached or molded or molded. This requires one additional Effort.
Die
Aus
der
Es ist Aufgabe der vorliegenden Erfindung, eine verbesserte Schweißtechnik aufzuzeigen.It Object of the present invention, an improved welding technology show.
Die Erfindung löst diese Aufgabe mit den Merkmalen in den Hauptansprüchen für die Schweißvorrichtung und das Schweißteil.The Invention solves This object with the features in the main claims for the welding device and the welding part.
Die erfindungsgemäße Schweißtechnik hat den Vorteil, dass beim gattungsgemäßen Impulsschweißen die aufwändigen Bauteilvorbereitungen und insbesondere das Anbringen oder Anformen von Buckeln an Blechen, entfallen kann. Die Fokusierung des Impulsstroms wird über einen im wesentlichen ringförmigen Isolator in einem Spalt zwischen den Werkstücken bewirkt. Dieser Isolator isoliert die Werkstücke elektrisch und vermeidet eine Kurzschlusssituation. Hierbei kann er auch eine Werkstückdistanzierung bewirken. Der notwendige stromleitende Werkstückkontakt kann während des Schweißprozesses durch eine Verformung zumindest eines der Werkstücke in einen Freiraum innerhalb des Isolators bewirkt werden. Der Isolator selbst kann am Schweißteil verbleiben und umgibt die geschaffene Schweißverbindung oder Naht, wobei er eine Schutzfunktion ausüben kann.The welding technology according to the invention has the advantage that the generic pulse welding the complex Component preparations and in particular the attachment or molding from humps to sheets, can be omitted. The focusing of the pulse current will over a substantially annular Insulator in a gap between the workpieces causes. This insulator isolates the workpieces electrically and avoids a short-circuit situation. Here can he also a workpiece distance cause. The necessary current-conducting workpiece contact can during the welding process by a deformation of at least one of the workpieces in a free space within of the insulator can be effected. The insulator itself can remain on the welding part and surrounds the created weld joint or seam, wherein he exercise a protective function can.
Während des Schweißprozesses und der Einbringung der Verformung wird der Isolator komprimiert und entwickelt nach der Entlastung eine Spannkraft und Spreizwirkung an der Schweißstelle. Der Isolator kann auch als Klebstoff ausgeführt sein, der vorzugsweise erst während des Schweißprozesses durch den Impulsstrom bzw. die Wärme aktiviert wird. Durch die Spreizkraft bzw. die Klebekraft wird eine zusätzliche Haltekraft zwischen den Werkstücken an der Schweißstelle eingebracht, welche die Scherfestigkeit der Werkstückverbindung erhöht. Außerdem kann der Isolator Verbesserungen bei der Dämpfung des Schweißteils bzw. der Werkstücke und beim Korrosionsschutz oder der Abdichtung an der Verbindungsstelle bewirken.During the welding process and the introduction of the deformation, the insulator is compressed and developed after relieving a clamping force and spreading effect at the weld. The insulator may also be designed as an adhesive, preferably only during of the welding process the pulse current or the heat is activated. Due to the spreading force or the adhesive force is an additional Holding force between the workpieces at the weld introduced, which the shear strength of the workpiece connection elevated. In addition, can the insulator improvements in the damping of the welding part or the workpieces and corrosion protection or sealing at the joint cause.
Der Bauaufwand zur konstruktiven Umsetzung der Schweißtechnik ist gering. Die beaufschlagte Elektrode braucht lediglich mit einem geeigneten Stempel ausgerüstet zu werden. Hierbei empfiehlt es sich, den Stempel aus einem Material herzustellen, welches eine ausreichende Festigkeit mit sich bringt und mit dem beaufschlagten Werkstück keine bleibende Verbindung eingeht. Vorzugsweise ist der Stempel im Innenbereich der Elektrode angeordnet und wird allseitig von der Elektrode umgeben. Dies sichert den Elektrodenkontakt mit dem beaufschlagten Werkstück und die Stromleitung während des Schweißprozesses und der Einbringung der Verformung.Of the Construction costs for constructive implementation of welding technology is low. The applied electrode needs only one equipped with a suitable stamp to become. It is advisable to use the stamp of a material produce, which brings a sufficient strength with it and with the loaded workpiece no lasting connection is received. Preferably, the stamp arranged in the interior of the electrode and is on all sides of surrounded by the electrode. This ensures the electrode contact with the acted upon workpiece and the power line during of the welding process and the introduction of the deformation.
In den Unteransprüchen sind weitere vorteilhafte Ausgestaltungen der Erfindung angegeben. In the dependent claims are further advantageous embodiments of the invention indicated.
Die Erfindung ist in den Zeichnungen beispielsweise und schematisch dargestellt. Im einzelnen zeigenThe The invention is for example and schematically in the drawings shown. Show in detail
Die
Erfindung befasst sich mit dem elektrischen Impulsschweißen von
Werkstücken
(
Das
Schweißteil
(
Stahl.
Die Werkstücke
(
Die
Schweißvorrichtung
(
Zumindest
eine Elektrode (
Der
Stempel (
Der
Stempel (
Mit
der erfindungsgemäßen Schweißtechnik werden
die zu verbindenden Werkstücke
(
Der
Isolator (
Der
Isolator (
Die
Ringform des Isolators (
Der
Isolator (
Die
Querschnittsform des Stempels (
Im
nächsten
Schritt gemäß
Nach
Beendigung des Schweißvorgangs und
Abschalten der Schweißstromquelle
(
Anschließend werden
die Werkstücke
(
Abwandlungen
der gezeigten Ausführungsform
sind in verschiedener Weise möglich.
Zum einen kann die Schweißvorrichtung
(
- 11
- Schweißvorrichtungwelder
- 22
- Schweißteilweldment
- 33
- Werkstück, BlechWorkpiece, sheet metal
- 44
- Werkstück, BlechWorkpiece, sheet metal
- 55
- Isolatorinsulator
- 5'5 '
- Isolatorteilinsulator part
- 5''5 ''
- Isolatorteilinsulator part
- 66
- Spaltgap
- 77
- Schweißstelleweld
- 88th
- Verformung, BuckelDeformation, humpback
- 99
- Schweißverbindungwelded joint
- 1010
- SchweißstromquelleWelding power source
- 1111
- ElektrodenanpressvorrichtungElectrode contact device
- 1212
- Elektrodeelectrode
- 1313
- Elektrodeelectrode
- 1414
- Stempelstamp
- 1515
- Zustellrichtung, Anpressrichtunginfeed, pressing direction
Claims (15)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE202004020166U DE202004020166U1 (en) | 2004-12-23 | 2004-12-23 | Welding device comprises one electrode having a stamp protruding in the adjusting direction via the electrode front wall to deform a workpiece on the welding site |
EP05027824A EP1679147A3 (en) | 2004-12-23 | 2005-12-20 | Method, device and tool for electric pressure welding |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE202004020166U DE202004020166U1 (en) | 2004-12-23 | 2004-12-23 | Welding device comprises one electrode having a stamp protruding in the adjusting direction via the electrode front wall to deform a workpiece on the welding site |
Publications (1)
Publication Number | Publication Date |
---|---|
DE202004020166U1 true DE202004020166U1 (en) | 2006-05-04 |
Family
ID=36442090
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE202004020166U Expired - Lifetime DE202004020166U1 (en) | 2004-12-23 | 2004-12-23 | Welding device comprises one electrode having a stamp protruding in the adjusting direction via the electrode front wall to deform a workpiece on the welding site |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE202004020166U1 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7877850B2 (en) | 2007-03-27 | 2011-02-01 | GM Global Technology Operations LLC | Method for positioning and joining panels |
DE202015005805U1 (en) | 2015-08-17 | 2015-09-09 | Grenzebach Maschinenbau Gmbh | Device for low-resistance welding of sheets with a high number of cycles |
WO2017028833A1 (en) | 2015-08-17 | 2017-02-23 | Grenzebach Maschinenbau Gmbh | Device and method for the low-resistance welding of metal sheets with a high cycle rate |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1944614A1 (en) * | 1967-08-03 | 1971-03-11 | Dr Becker Otto Alfred | Process for resistance welding of coated sheets |
DE4038016A1 (en) * | 1990-11-29 | 1992-06-04 | Univ Schiller Jena | Composite electrode for resistance welding - made of conductive basic body with high wear-resistant coating or tip to improve work life and long term weld quality |
-
2004
- 2004-12-23 DE DE202004020166U patent/DE202004020166U1/en not_active Expired - Lifetime
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1944614A1 (en) * | 1967-08-03 | 1971-03-11 | Dr Becker Otto Alfred | Process for resistance welding of coated sheets |
DE4038016A1 (en) * | 1990-11-29 | 1992-06-04 | Univ Schiller Jena | Composite electrode for resistance welding - made of conductive basic body with high wear-resistant coating or tip to improve work life and long term weld quality |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7877850B2 (en) | 2007-03-27 | 2011-02-01 | GM Global Technology Operations LLC | Method for positioning and joining panels |
DE102008015201B4 (en) * | 2007-03-27 | 2011-07-21 | GM Global Technology Operations LLC, ( n. d. Ges. d. Staates Delaware ), Mich. | Method for positioning and joining metal sheets |
DE202015005805U1 (en) | 2015-08-17 | 2015-09-09 | Grenzebach Maschinenbau Gmbh | Device for low-resistance welding of sheets with a high number of cycles |
WO2017028833A1 (en) | 2015-08-17 | 2017-02-23 | Grenzebach Maschinenbau Gmbh | Device and method for the low-resistance welding of metal sheets with a high cycle rate |
DE102015010734A1 (en) | 2015-08-17 | 2017-02-23 | Grenzebach Maschinenbau Gmbh | Apparatus and method for low-resistance welding of sheets with a high number of cycles |
CN107921571A (en) * | 2015-08-17 | 2018-04-17 | 格林策巴赫机械制造有限公司 | Have the low resistance welder and method of high circulation rate sheet metal |
JP2018523581A (en) * | 2015-08-17 | 2018-08-23 | グレンツェバッハ・マシーネンバウ・ゲーエムベーハー | Apparatus and method for low resistance welding of metal sheets at high cycle rates |
US10792753B2 (en) | 2015-08-17 | 2020-10-06 | Grenzebach Maschinenbau Gmbh | Device and method for the low-resistance welding of metal sheets with a high cycle rate |
CN107921571B (en) * | 2015-08-17 | 2021-03-12 | 格林策巴赫机械制造有限公司 | Low resistance welding device and method for metal sheet with high circulation rate |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
R079 | Amendment of ipc main class |
Free format text: PREVIOUS MAIN CLASS: B23K0009007000 Ipc: B23K0011260000 |
|
R163 | Identified publications notified | ||
R207 | Utility model specification |
Effective date: 20060608 |
|
R081 | Change of applicant/patentee |
Owner name: RS ELEKTRONIK GMBH, DE Free format text: FORMER OWNER: RS ELEKTRONIK GMBH, 86316 FRIEDBERG, DE Effective date: 20080519 |
|
R156 | Lapse of ip right after 3 years |
Effective date: 20080820 |