A method for producing a groove pattern on a cylinder surface includes providing an abrasive module, including an abrasive mesh article and collector block, providing a patterning head, which including the abrasive module and pressing actuator, pressing the abrasive module against the cylinder surface by using the actuator, forming a plurality of grooves on the cylinder surface by causing relative motion between the abrasive module and cylinder surface, and drawing gas through the abrasive mesh article to collect particles released from the cylinder surface. The abrasive mesh article includes a plurality of abrasive grains bonded to a flexible mesh backing, defining openings. The collector block has a curved supporting surface defining openings. The abrasive mesh article is attached to the curved supporting surface by a releasable fastening system. The openings of the flexible mesh backing are in communication with the openings of the collector block via the releasable fastening system.

A surface treating apparatus for treating an inner surface of a bore containing a shaft may include a body connectable to a drive apparatus and configured to movably receive a shaft extending through a bore, and at least one surface treating member connected to and movable with the body relative to the shaft, the at least one surface treating member sized to be inserted within an annular gap formed between the shaft and an inner surface of the bore and to bear against the inner surface of the bore when the shaft is received by the body.

A surface treating apparatus for treating an inner surface of a bore containing a shaft may include a body connectable to a drive apparatus and configured to movably receive a shaft extending through a bore, and at least one surface treating member connected to and movable with the body relative to the shaft, the at least one surface treating member sized to be inserted within an annular gap formed between the shaft and an inner surface of the bore and to bear against the inner surface of the bore when the shaft is received by the body.

A method includes positioning a cylindrical tool having one or more rows of blades within a cylindrical bore having a surface, forming annular grooves and peaks into the surface with the grooving blades when the swaging blades are in the retracted position, and translating the swaging blades from the retracted position to the extended position to deform the peaks. The one or more rows of blades includes fixed grooving blades and translatable swaging blades having retracted and extended positions.

A center shaft machining apparatus includes: a grinding structure that moves on a machining central axis while rotating about the machining central axis and machines an end surface on one end side of a workpiece arranged on the machining central axis; an end portion support structure that supports an opposite end side of the workpiece; and a shaft portion support structure that supports a shaft support portion set at an intermediate portion of the workpiece. The end portion support structure includes an eccentric mechanism capable of supporting an opposite end of the workpiece in a state where a workpiece central axis of the workpiece is eccentric with respect to the machining central axis.

A center shaft machining apparatus includes: a grinding structure that moves on a machining central axis while rotating about the machining central axis and machines an end surface on one end side of a workpiece arranged on the machining central axis; an end portion support structure that supports an opposite end side of the workpiece; and a shaft portion support structure that supports a shaft support portion set at an intermediate portion of the workpiece. The end portion support structure includes an eccentric mechanism capable of supporting an opposite end of the workpiece in a state where a workpiece central axis of the workpiece is eccentric with respect to the machining central axis.

A honing machine for honing a bore in a workpiece comprises a support structure fixed to the machine and at least one honing unit which is mounted on the support structure and which has a spindle unit (150) in which a spindle shaft (152) is rotatably mounted, wherein the spindle shaft (152) is rotatable about a spindle axis (155) by means of a rotary drive (450) and, at a tool-side end (153), has a device for the fastening of an expandable honing tool. The honing machine furthermore comprises a stroke drive for generating a stroke movement of the spindle unit (150) and an expansion drive (550) for expanding the honing tool, wherein the expansion drive is coupled to an advancing rod (460) which runs in the interior of the spindle shaft. The spindle unit (150) has a spindle unit housing (310) which has a first housing portion (310-1) for accommodating the rotary drive (450) and a second housing portion (310-2) for accommodating the expansion drive (550). The rotary drive (450) is accommodated in an exchangeable first cartridge (400) and the expansion drive (550) is accommodated in a second cartridge (500) which is exchangeable independently of the first cartridge (400), wherein the first cartridge (400) is introducible into the first housing portion (310-1) and the second cartridge (500) is introducible into the second housing portion (310-2).

A honing machine (100) for honing a bore in a workpiece comprises a support structure (120) fixed to the machine, and at least one honing unit (130) which is mounted on the support structure. The honing unit has a main support (160) which can be mounted fixedly with respect to the support structure and a spindle unit (150) which is supported by the main support and in which a spindle shaft is rotatably mounted, wherein the spindle shaft is rotatable about a spindle axis by means of a rotary drive and, at a tool-side end (153), has a device for the fastening of a honing tool. Furthermore, a linear guide system which is arranged between the main support (160) and the spindle unit (150) for guiding a linear stroke movement of the spindle unit (150) relative to the main support (160) and a stroke drive for generating the stroke movement of the spindle unit (150) are provided. The main support (160) is attached to the support structure (120) in such a manner that a workpiece-close end (166) of the main support lies at a distance above a spindle-facing limit of a workpiece height range. The spindle unit (150) is attached with respect to the linear guide system in such a manner that, in a workpiece-close end position of a stroke movement, the tool-side end (153) of the spindle shaft lies closer to the workpiece height range than the workpiece-near end (166) of the main support (160).

A honing machine (100) for honing a bore in a workpiece comprises a support structure (120) fixed to the machine, and at least one honing unit (130) which is mounted on the support structure. The honing unit has a main support (160) which can be mounted fixedly with respect to the support structure and a spindle unit (150) which is supported by the main support and in which a spindle shaft is rotatably mounted, wherein the spindle shaft is rotatable about a spindle axis by means of a rotary drive and, at a tool-side end (153), has a device for the fastening of a honing tool. Furthermore, a linear guide system which is arranged between the main support (160) and the spindle unit (150) for guiding a linear stroke movement of the spindle unit (150) relative to the main support (160) and a stroke drive for generating the stroke movement of the spindle unit (150) are provided. The main support (160) is attached to the support structure (120) in such a manner that a workpiece-close end (166) of the main support lies at a distance above a spindle-facing limit of a workpiece height range. The spindle unit (150) is attached with respect to the linear guide system in such a manner that, in a workpiece-close end position of a stroke movement, the tool-side end (153) of the spindle shaft lies closer to the workpiece height range than the workpiece-near end (166) of the main support (160).

A honing machine (100) for honing a bore in a workpiece comprises a support structure (120) fixed to the machine and at least one honing unit (130) which is mounted on the support structure and which has a main support (160), which can be mounted fixedly in relation to the support structure, and a spindle unit (150), which is supported by the main support and in which a spindle shaft (152) is rotatably mounted, wherein the spindle shaft (152) is rotatable about a spindle axis (155) by means of a rotary drive and, at a tool-side end (153), has a device for the fastening of a honing tool. The honing machine furthermore has a linear guide system which is arranged between the main support (160) and the spindle unit (150) and which serves for guiding a linear stroke movement of the spindle unit (150) relative to the main support (160), a stroke drive for generating the stroke movement of the spindle unit (150), and an alignment system (200) for setting the alignment of the spindle axis (155) in relation to the support structure (120). The alignment system (200) is designed for the continuously variable, reversible setting of the alignment of the spindle axis (155) in relation to the support structure (120), wherein the alignment system is designed for the independent setting of the position of the spindle axis (155) along two mutually perpendicular axes of translation and for the setting of the orientation of the spindle axis (155) in relation to two mutually perpendicular axes of rotation.