Method and device for producing a rolling bearing cage from a sleeve-like blank
AssigneeHsp Schwahlen GmbH
InventorsDennis Hahn, Giovanni Sorrentino, Christian Schwahlen
Life of this patent
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Abstract
A method is provided for producing an angular bearing cage from a sleeve-like blank. In order to significantly reduce the manufacturing costs compared to known solutions even for small series, the method comprises the following steps of: —Step A: providing a sleeve-like blank extending along an axis. —Step B: rolling a wall section to be formed of the blank while changing the angle of the wall section to be formed relative to the axis of the blank. —Step C: introducing rolling element pockets into the rolled wall section. A corresponding device and a correspondingly produced rolling bearing cage or angular bearing cage are also provided.
Claims8
A method for producing a rolling bearing cage from a sleeve-shaped blank, comprising the steps of:
- step A:
- providing the sleeve-shaped blank extending along an axis;
- step B:
- rolling a wall portion to be formed of said blank while changing an angle of said wall portion to be formed relative to said axis of said blank to create a rolled wall portion;
- and
- step C:
- introducing rolling element seats into said rolled wall portion,
- wherein the step B comprises the following sub-steps:
- sub-step B-2:
- moving a rolling tool and/or said blank such that said rolling tool rolls on a path along the inner circumference and/or along the outer circumference of said wall portion to be formed and forms said wall portion to be formed while reducing a thickness of said wall portion as well as changing an inner circumference and/or an outer circumference of said wall portion;
- and
- sub-step B-4:
- repeating sub-step B-2 until a desired shape of said wall portion to be formed has been obtained, wherein said angle is changed with each repetition.
A device for producing a component with a formed wall portion from a sleeve-shaped blank, comprising:
- a clamping tool for clamping said sleeve-shaped blank along an axis
- a rolling tool configured to form at least one wall portion to be formed of said sleeve-shaped blank by rolling, the at least one wall portion to be formed of said blank while changing an angle of said at least one wall portion to be formed relative to said axis of said blank to create said at least one wall portion;
- and
- a tool for introducing rolling element pockets/seats into said rolled wall portion, and
- a control device configured to control said rolling tool and said clamping tool so as to:
- move said rolling tool and/or said blank such that said rolling tool rolls on a path along the inner circumference and/or along the outer circumference of said at least one wall portion to be formed and forms said at least one wall portion to be formed while reducing a thickness of said at least one wall portion as well as changing an inner circumference and/or an outer circumference of said at least one wall portion;
- and
- repeating said move until a desired shape of said at least one wall portion to be formed has been obtained, wherein said angle is changed with each repetition.
Dependencies are inferred from the claim text.