Method of and device for joining assembled hollow shafts
AssigneeMuhr und Bender KG
InventorsJochen Asbeck, Henning Blocker
Life of this patent
Estimating the term…
Abstract
A method and device for joining assembled hollow shafts which consist of a tube and several attachable parts such as cams, flanges, bearing sleeves, pulse generating devices, toothed gears and chain gears slid on to the tube, wherein the tube, inside the attachable parts, is radially plastically expanded in individual portions by applying internal pressure in such a way that the attachable parts are secured to the tube by a permanent press fit, wherein the attachable parts and the tube are individually positioned and fixed relative to one another and wherein the tube is sequentially plastically expanded in individual portions associated with the individual attachable parts.
Claims29
A device for joining assembled hollow shafts comprising a tube defining an axis and attachable parts slid on to the tube, the device comprising:
- a single positioning and fixing unit (40) for the attachable parts;
- and
- a single holding and positioning device (20) for the tube,
- wherein the tube, inside the attachable parts, is radially plastically expanded in individual portions by applying internal pressure in such a way that the attachable parts are secured to the tube by a permanent press fit.
A system comprising a plurality of joining stations (80) each for joining assembled hollow shafts including a tube and an attachable part slid onto the tube wherein the tube, inside the attachable parts, is radially plastically expanded in individual portions by applying internal pressure in such a way that the attachable parts are secured to the tube by a permanent press fit, each joining station (80) comprising a single positioning and fixing unit (40) for the attachable parts and a single holding and positioning device (20) for the tube, the individual stations (80) being connected to one another linearly or in a loop via a transport path (81), and wherein the system comprises workpiece transporting units (10) transportable from station to station which each comprise a first holding device (16) for an exchangeable chuck for a tube, and wherein the holding and positioning device (20) of each joining station (80) includes a second holding device (22) for an exchangeable chuck for a tube.
A method of joining a hollow shaft and a plurality of attachable parts slid onto the hollow shaft comprising:
- for each attachable part, positioning the attachable part with respect to the tube;
- and
- thereafter, securing the attachable part to the tube by plastically expanding the tube in an individual portion associated with the attachable part, wherein the step of securing occurs sequentially for each attachable part.
Dependencies are inferred from the claim text.