Crankshaft machine tool test device

A test device for testing a machine for roller burnishing at least one cylindrical journal, the machine includes at least one roller configured to roll on a region of the cylindrical journal that is to be roller burnished, a bearing wheel exerting a pressure on the roller, and two support wheels configured to support the cylindrical journal on an opposite side to the roller, the test device comprising:

• retaining and drive means in the roller burnishing machine, which moves the test device rotationally about an axis of rotation;
• a rolling track for rollers that is associated with the roller and that comes into contact with the roller, the rolling track for rollers having symmetry of revolution about the axis of rotation of the device, with a profile including a rounded portion;
• and
• a main shaft supporting rolling rings for the rollers that each comprise at least one rolling track for rollers, the main shaft supporting rolling rings for the support wheels that each form a cylindrical rolling track for a pair of support wheels, the rolling rings being rotationally secured to the main shaft,
• wherein the roller burnishing machine is configured for the roller burnishing of a crankshaft including a given number of cylindrical journals, and
• wherein the retaining and drive means in the roller burnishing machine comprises:
• a bore arranged at a first end of the main shaft symmetrically to the axis of rotation of the test device and configured to receive a first drive center;
• a threaded hole arranged at a second end of the main shaft arranged symmetrically about the axis of rotation of the test device and configured to receive a threaded rod of a drive device;
• and
• the drive device comprising, on a side directed away from the threaded rod, a bore which is coaxial with the axis of rotation of the test device and configured to receive a second drive center.