Patents by Inventor Martin Buschka

Martin Buschka has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 11951527
    Abstract: A method for producing a ball raceway on a workpiece includes providing the workpiece, machining a preliminary thread profile on the workpiece and providing a thread rolling tool. The thread rolling tool has a tool shank, and the tool shank has a free end with a tool head having a roller profile. The method also includes clamping the workpiece into the thread rolling tool, rotating the workpiece about an axis of rotation, moving the tool shank longitudinally along the workpiece, and rolling the roller profile on the preliminary thread profile to generate a final thread profile.
    Type: Grant
    Filed: November 8, 2019
    Date of Patent: April 9, 2024
    Assignee: Schaeffler Technologies AG & Co. KG
    Inventors: Martin Buschka, Peter Geschwindner
  • Patent number: 11717922
    Abstract: A method for surface treatment of a workpiece includes providing the workpiece with hardened workpiece surface, clamping the workpiece, removing material from the hardened workpiece surface with a material removal tool to produce a machined surface with first machining tracks, and rolling the machined surface with a rolling tool by overlapping the first machining tracks to produce a rolled surface with second machining tracks. A distance between the material removal tool and the rolling tool measured in an axial direction of the workpiece is varied in an oscillating manner. The material removal tool may be advanced in the axial direction at a constant speed and the rolling tool may be advanced in the axial direction at an oscillating speed, or the rolling tool may be advanced in the axial direction at a constant speed and the material removal tool may be advanced in the axial direction at an oscillating speed.
    Type: Grant
    Filed: August 28, 2019
    Date of Patent: August 8, 2023
    Assignee: Schaeffler Technologies AG & Co. KG
    Inventors: Martin Buschka, Silvio End, André Kuckuk
  • Publication number: 20220221003
    Abstract: A method for machining a bearing ring of a rolling bearing includes providing a blank with an annular surface for producing the bearing ring, clamping the blank in a machine tool, and structuring the annular surface by high-feed milling to form a sealing face. The method may include removing material from the blank to produce a track of the bearing ring while the blank is still clamped in the machine tool, with the blank rotating during the steps of structuring the annular surface and removing material from the blank. The method may also include providing a high-feed milling cutter with a face, and performing the high-feed milling with the face.
    Type: Application
    Filed: April 15, 2020
    Publication date: July 14, 2022
    Applicant: Schaeffler Technologies AG & Co. KG
    Inventors: Martin Buschka, André Kuckuk, Silvio End
  • Publication number: 20220062969
    Abstract: A method for producing a ball raceway on a workpiece includes providing the workpiece, machining a preliminary thread profile on the workpiece and providing a thread rolling tool. The thread rolling tool has a tool shank, and the tool shank has a free end with a tool head having a roller profile. The method also includes clamping the workpiece into the thread rolling tool, rotating the workpiece about an axis of rotation, moving the tool shank longitudinally along the workpiece, and rolling the roller profile on the preliminary thread profile to generate a final thread profile.
    Type: Application
    Filed: November 8, 2019
    Publication date: March 3, 2022
    Applicant: Schaeffler Technologies AG & Co. KG
    Inventors: Martin Buschka, Peter Geschwindner
  • Publication number: 20220063027
    Abstract: A method for surface treatment of a workpiece includes providing the workpiece with hardened workpiece surface, clamping the workpiece, removing material from the hardened workpiece surface with a material removal tool to produce a machined surface with first machining tracks, and rolling the machined surface with a rolling tool by overlapping the first machining tracks to produce a rolled surface with second machining tracks. A distance between the material removal tool and the rolling tool measured in an axial direction of the workpiece is varied in an oscillating manner. The material removal tool may be advanced in the axial direction at a constant speed and the rolling tool may be advanced in the axial direction at an oscillating speed, or the rolling tool may be advanced in the axial direction at a constant speed and the material removal tool may be advanced in the axial direction at an oscillating speed.
    Type: Application
    Filed: August 28, 2019
    Publication date: March 3, 2022
    Applicant: Schaeffler Technologies AG & Co. KG
    Inventors: Martin Buschka, Silvio End, André Kuckuk
  • Publication number: 20210379727
    Abstract: A tool for mechanical surface treatment includes a housing, a roller body, and a resonator. The housing has a cavity for filling with a hydraulic medium having a basic pressure. The roller body is for rolling on a workpiece surface to be treated and is exposed to the basic pressure of the hydraulic medium. The resonator is arranged for generating targeted pressure pulses in the hydraulic medium. In some example embodiments, the housing has a tubular body with a tip and the roller body is arranged at the tip. In an example embodiment, the roller body is a sphere. In an example embodiment, the tool includes a seal for sealing the roller body to the tubular body.
    Type: Application
    Filed: September 24, 2019
    Publication date: December 9, 2021
    Applicant: Schaeffler Technologies AG & Co. KG
    Inventors: André Kuckuk, Martin Buschka
  • Publication number: 20210339305
    Abstract: A method for machining a bearing ring of a rolling bearing includes clamping a blank for the bearing ring in a machining machine, and applying a pulsating pressure using a machining body to structure and simultaneously harden an annularly closed sealing surface of the blank. The machining body may be a spherical machining body. The method may also include removing material from the blank to produce a bearing ring track using the same clamping. The blank may be rotated during the applying a pulsating pressure step and the removing material step.
    Type: Application
    Filed: July 16, 2019
    Publication date: November 4, 2021
    Applicant: Schaeffler Technologies AG & Co. KG
    Inventors: André Kuckuk, Martin Buschka