Abstract: An improved micro-finishing machine is disclosed in which a transfer system is provided to move workpieces into and out of the machine in a path perpendicular to the axes of the machine drive rollers. The transfer system further enables an inprocess size control gauge to be added to the machine to monitor the diameter of the workpieces during micro-finishing. The machine offers greater flexibility by enabling the machine to be easily reconfigured to micro-finish other parts. The transfer system utilizes ejectors that are simple in construction, requiring a minimal number of components.

Abstract: Microfinishing devices and processes for in-process gauging of a microfinishing process of generally cylindrical workpieces. A size control shoe is used with a microfinishing shoe such that the diameter of a generally cylindrical workpiece can be continually monitored during the microfinishing process. Once a predetermined diameter or workpiece geometry is achieved, the machining process can be terminated. Several embodiments of size control shoes are disclosed which are particularly adapted for retrofit applications for existing microfinishing equipment. A "masterless" microfinishing machine is also described having arms which engage the size control and microfinishing shoes which follow the path of the workpiece during machining. Since the shoes must be maintained in engagement with the workpiece after a desired diameter is achieved, the pressure applied by the microfinishing arms is relieved until all of the workpiece surfaces are machined.

Abstract: Microfinishing devices and processes for in-process gauging of a microfinishing process of generally cylindrical workpieces. A size control shoe is used with a microfinishing shoe such that the diameter of a generally cylindrical workpiece can be continually monitored during the microfinishing process. Once a predetermined diameter or workpiece geometry is achieved, the machining process can be terminated. Several embodiments of size control shoes are disclosed which are particularly adapted for retrofit applications for existing microfinishing equipment. A "masterless" microfinishing machine is also described having arms which engage the size control and microfinishing shoes which follow the path of the workpiece during machining. Since the shoes must be maintained in engagement with the workpiece after a desired diameter is achieved, the pressure applied by the microfinishing arms is relieved until all of the workpiece surfaces are machined.

Abstract: A microfinishing apparatus and method is disclosed particularly useful for microfinishing workpiece surfaces such as are found in journal bearings and cylinder bores. This invention improves over conventional machines and methods wherein coated abrasive tape is brought into contact with a relatively rotating workpiece surface and is pressed against that surface by an elastomeric plastic insert. According to this invention, the insert is made from a relatively rigid substance such as honing material stone. Since the insert is made from a rigid material, the insert surface shape is generated in the workpiece surface and therefore geometry corrections in the workpiece surface can be accomplished. In alternate embodiments of this invention, the rigid inserts have relieved portions or noncylindrical surfaces such that a desired surface profile in the workpiece surface is generated. In another embodiment, one or more flexible inserts are added to the rigid insert enabling the fillet radius area to be microfinished.