Hegenscheidt-mfd Gmbh Co. Kg

Hegenscheidt-mfd Gm H & Co. Kg

Frank Risters

Roland Heffe

Alfred Heimann

Theo Nijssen

Hans Zimmermann

Siegfried Bagusche

Ralf Freitag

Juergen Winnertz

Hans-Willi Lingen

Herbert Kalb

Hans Zimmerman

Jürgen Winnertz

A deep rolling machine has a power unit () attached in a gate () such that the power unit () can be moved in the direction of force exertion (). The power unit () is connected, with articulation, at one end (), via a joint (), to the end () of a shearing arm () of the deep rolling unit (). The free end () of the gate () is fit with a back up roller () that is routed along a curved web (), defined in a gap in the second end () of the shearing arm (). In the closed position of the power unit (), three joints () form a triangle (). One of the joints () points to the rotating joint (). The two shearing arms (and) of the deep rolling unit () are articulately connected to one another at the rotating joint (). Also in the closed position, a crank lever () reaches a limit stop () at the end () of the shearing arm ().

Roller burnishing machine for crankshafts

The invention relates to a method for deep rolling the passes or radii on the transitions between journal and cheeks or flanges of crankshafts by means of a deep rolling device () of a deep rolling machine, said deep rolling device having a lazy tongs-type design. The deep rolling device () has two tongs arms () that are articulated to each other via a pivot joint (). The corresponding outer ends () of the tongs arms () are provided with a deep rolling tool () or a force generator () for generating the deep rolling force. A measuring tape () and a sensor () which are provided on the pivot joint () are used to measure the impression depth of the deep rolling rollers () under the effect of the deep rolling force. A measuring device () mounted on the exterior () of a tongs arm () is used to measure the degree by which the tongs arm () bends under the effect of the deep rolling force.

Procedure for deep rolling crankshafts

A deep rolling roller head includes two housings for the deep rolling of the outer radii or fillets of split-pin crankshaft journals by means of two deep rolling rollers which are pressed into one of the two fillets under a rolling force while the crankshaft rotates around its axis of rotation. The two housings follow at the same time the different movements of the journals and support each other with their insides across from each other on a bearing plate. The insides of the housings bear on either side of the axis of rotation of the crankshaft and at a distance from it on an extension segment extending in the direction of the rolling force to below a contact point between the deep rolling rollers and the fillets to be deep-rolled. The bearing plate connected permanently to the inside and the extensions of one of the two housings.

Deep rolling roller head for split-pin crankshafts

A roller cage ( ) is provided with a prismatic base body for guiding a minimum of one work roller designed for deep rolling of grooves on crankshaft journals or crank pins, in a first ( ) concave recess on one of the two faces ( ) of the prismatic body on a section of the circumference of the work roller, wherein the rotational axis of the work roller is inclined at an angle ( ), in which the section guided inside the roller cage ( ) has a shorter distance to the longitudinal center (C&mdash;C) of the prismatic body than the remaining section with a first, groove shaped recess ( ) along the longitudinal center (C&mdash;C) of the base area ( ) of the prismatic body, as a passage for one support roller for the work roller, and a second groove shaped recess ( ) along the longitudinal center (C&mdash;C) on the side ( ) of the prismatic body located opposite the first groove shaped recess ( ), for support of the roller cage ( ) on the end of the long leg of an L-shaped tool holder, by providing on the second face of the prismatic body ( ) located opposite the first concave recess ( ), a minimum of one second concave recess identical by position and size to the first concave recess ( ).

Roller cage

Growing community of inventors

Erkelenz, Germany

Frank Risters