Hegenscheidt-mfd Gmbh Co. Kg

Hans-Toni Steffens

Hans Zimmermann

The invention relates to a hard-rolling roller for a deep rolling tool having a torus-shaped base body for deep rolling of radiuses or recesses which limit the bearing trunnion on crankshafts on both sides, and two at least approximately truncated cone-shaped central bodies, rising on both sides of the body. A cylindrical body rises on the upper end surface of one of the two central bodies.

Hard-rolling roller

The invention concerns a deep rolling head () of a deep rolling tool of a shears-type deep rolling unit of a deep rolling machine used for the deep rolling of radii or fillets () on the bearing pins () of crankshafts () with the aid of deep rollers () that are rotatably supported in the deep rolling head () with appropriate clearance, whereby the deep rolling head () is mounted at the outer end of one of the two shears arms () of the deep rolling unit. The deep rolling head () is pivotably attached to the end () of the shears arm.

Deep rolling head of a deep rolling tool for the deep rolling of crankshafts

The invention relates to a deep-rolling roller head () of a deep-rolling tool for deep-rolling, by means of deep-rolling-rollers (), radii or recesses () on the main () and lifting bearing journal of a crankshaft, while the crankshaft rotates in a rotational direction (). The deep-rolling roller head () has a prismatic, flat, approximately rectangular housing () on whose one front side (), which faces the bearing journals () to be deep-rolled of the crankshaft, two roller cages () are provided. The roller cages () each have first front sides (), which are at a mutual distance () from each other and at the same time at a distance () from the longitudinal center () of the housing (). The roller cages () have recesses (), in which deep-rolling rollers of () are loosely rotatably guided in a removable manner with play. The roller cages () are supported in each case with second front sides () on parts of the housing () or on elements, which are adjustably fixed to the housing (). The section () of the front side () of the housing () facing away from the rotational direction () has a projection () on which the roller cage () is supported with its second front side (). An L-shaped retainer (), which can be adjusted and fixed relative to the housing () is provided on the section () of the housing () facing the rotational direction () of the crankshaft. The second roller cage () is supported with its second front surface () on the end () of the long arm () of the retainer ().

Deep-rolling roller head of a deep-rolling tool

The fixed roll apparatus ( ) of a fixed roll machine ( ) for crankshafts ( ) is constructed scissors-fashion. Two pivotable scissor arms ( and ) disposed opposite one another each bear a fixed roll head ( ) and a support roll head ( ) respectively. The support roll head ( ) has two axis-parallel support rolls whose axes of rotation lie in a common plane. The support roll head ( ) also has an axial guide roll which is disposed in front of the support rolls in the pivoting direction ( ) for closure and whose axis of rotation is perpendicular to the axis of rotation of the crankshaft ( ) and lies in a plane which forms an acute angle with the common plane of the axis of rotation of the support rolls, its diameter being larger than the width of the support roll head ( ) and slightly smaller than the spacing of the adjacent oil collars of a main bearing pin or a connecting rod bearing pin.

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Erkelenz, Germany

Hans-Toni Steffens