Kuka Industries Gmbh

Kuka Deutschland Gmbh

Kuka Systems Gmbh

Klaus Schneider

Otmar Fischer

Michael Büchler

Harald Meyer

Rudolf Huber

Thomas Hauck

Stefan Habersetzer

Manfred Menzinger

Jörg Herrich

Andreas Burger

Andy Pham

Frank Rudolph

A method and apparatus for joining using friction and current, wherein the friction/current joining apparatus includes a friction device, a forging device, an electrical current source, and a programmable controller, as well as workpiece holders for the workpieces to be joined. The friction/current joining apparatus is controlled such that, in a contacting phase, the workpieces are initially moved along a process axis, and their mutually facing joining surfaces oriented transverse to a common process axis are brought into contact. In a grinding phase, while subjected to contact pressure by mutual relative movement, the joining surfaces, are ground together and made smooth. At the end of the grinding phase, the relative frictional movement is permanently stopped and, in a forging phase following the grinding phase, the workpieces are pressed together, plasticized, and joined while subjected to contact pressure on their contacting joining surfaces along the process axis, and subjected to conductive heating with electrical current.

Method and apparatus for friction current joining

A pressure welding method and a pressure welding device () are provided. The pressure welding device () includes a plastification device (), an upsetting device () and component mountings () for the components () to be welded together and a machine frame (). The pressure welding device () further includes a plurality of machine heads (), each having a component mount (), which machine heads are movably arranged on the machine frame and are connected to respective upsetting drives (). The machine heads () and respective upsetting drives () can be independently driven. An upsetting head or support head (), which is preferably secured on the frame, is arranged between the machine heads ().

Pressure welding device and pressure welding method

A pressure welding method and to a pressure welding device () are provided. The pressure welding device () includes a plastification device (), an upsetting device () and component mountings () for the components () to be welded together and a machine frame (). The pressure welding device () includes a machine head () which is arranged so as to move on the machine frame (). The machine head () includes a rotatable spindle () and a component mounting element () as well as an associated spindle drive (). The machine head () and the spindle drive () are separated from each other on the machine frame (). A controllable mass decoupling () including an axially tolerant coupling (), is arranged in the drive train () between the fixed or moveable spindle drive () arranged on the machine frame ().

A pressure welding method and a pressure welding device are provided. The pressure welding device includes a plastification device (), an upsetting device () and component mountings (), for the components () to be welded together, and a machine frame (). The pressure welding device () further includes a machine head () with a component mounting () and an associated additional component mounting () and the machine head () is moveably arranged on the machine frame (). The pressure welding device includes a machining device (), for the welding part ('), which is associated with the machine head () or the additional component mountings (). An adjusting device () generates a relative movement between the machine head () and the associated additional component mounting () for machining the welding part (&#x2032;).

A pressure welding device () and a pressure welding method are provided. The pressure welding device () includes a plastification unit (), a positioning and compressing unit (), a controller (), and an advance unit () for a workpiece () and for the process axis (). The advance unit () has an open- or closed-loop controllable hydraulic advance drive () that is formed as an open- or closed-loop controllable electro-hydraulic direct drive for the process axis ().

Pressure welding device and pressure welding method using an advance drive designed as an electrohydraulic direct drive

A pressure welding method is provided and a pressure welding machine () is provided with a frame (), two welding heads (), mobile along a feed axis (), and two adjusting units (). The adjusting units () include feed drives () for the welding heads (). The two adjusting units () are mounted so as to be axially movable () on the frame () and are interlinked with an adjusting drive () by means of a common adjusting element () and supported in a closed system of forces while receiving the pressure welding forces, thereby relieving the frame (). The common adjusting element () is configured as a continuous spindle () having two self-locking threads () that run in opposite directions.

Growing community of inventors

Friedberg, Germany

Klaus Schneider