摘要:
The invention relates to a device for supplying and positioning fixing elements (8), comprising a chuck (18) that is provided with two spring-loaded stopper parts (1, 2) and that holds one fixing element (8) respectively for further processing. The invention is characterised in that the stopper parts are design as clamping jaws (1, 2) with which an actuation element (3) is associated that reaches between these jaws and that is provided with a narrow section (6) and two neighbouring extensions (4, 5) in an axial direction. Said actuation element is connected to an axial slide (21) for axially moving said actuation element (3), and is used to open and close the chuck (18) by forcing the clamping jaws (1, 2) apart, releasing the fixing element (8) for processing when the chuck (18) is opened.
摘要:
The invention relates to a rotationally symmetrical fastening element (1) with an axially central rounded-off tip (5) for a friction-welded joint with respect to a component of a flat form. The tip is adjoined by a conical circumferential surface (6), which goes over into a flute (7) for receiving material that is melted during the friction welding, and by a shoulder (9) which surrounds the flute, is set back axially from the tip and goes over into the friction-welded joint.
摘要:
The invention relates to a friction-welded connection between a sheet metal element (3) and a rotation body (1) which is inserted therein. The sheet metal element comprises a protruding circular annular wall (5) as a pressure surface, whereon the rotation body (1) can be pressed to the counter-pressure surface. At least one pressure surface extends in a conical manner in such way that the introduction of the rotation body charges the annular wall with an increasing amount of pressure and a friction-welded connection is established between the rotation body and the annular wall by rotating the rotation body.
摘要:
A bonding structure of a valve seat has a port opening of a metallic head and an annular metallic valve seat insert. The valve seat insert includes an outer reduced diameter surface on its outer circumference. The material of the valve seat insert is harder than that of the head. The head plastically deforms upon pressing the valve seat insert toward the head. The deformed metal occupies any gap around the outer reduced diameter surface.
摘要:
The present invention relates to a process for producing a multi-part assembly, in particular a three-part assembly, in which at least one flat metal part (1) and one metallic base (2) are pressed onto one another to form a structure (4) to be connected, a connecting part (3, 3a) with a tapering end portion (5) and of a material with a higher melting point than that of the flat metal part (1) and the structure (4) are rotated relative to one another to form a molten material (7) and are pressed against one another until the connecting part (3, 3a) has penetrated the flat metal part (1), so molten material for forming a material welded joint (9) between the base (2) and the flat metal part (1) is brought therebetween. The invention also relates to a correspondingly produced multi-part connection and the formation of an associated connecting part (3). The preferred sphere of application is the connection of light metal parts, in particular body parts in automobile construction.