In order to provide a tool holder for holding a tool for treating the surface of a workpiece by means of which it is possible to treat workpieces in a low-vibratory and convenient manner, it is proposed that the tool holder comprise a disk-shaped base body which has an attachment section for the attachment of the tool holder to a machine tool and at least one resiliently flexible deformation section.

In order to provide a tool holder for holding a tool for treating the surface of a workpiece by means of which it is possible to treat workpieces in a low-vibratory and convenient manner, it is proposed that the tool holder comprise a disk-shaped base body which has an attachment section for the attachment of the tool holder to a machine tool and at least one resiliently flexible deformation section.

The present invention relates to an attachment hub for attachment to a sander, comprising a quick-release attachment assembly configured for releasable and aligned engagement with a counterpart of a backup pad particularly for an abrasive disc. Furthermore, the invention relates to a backup pad having a disc-like shape and comprising a first major surface and a second major surface, the first major surface configured for direct or indirect attachment of an abrasive disc, and the second major surface configured for facing towards an attachment hub for attachment to a sander, and a mounting portion for aligned engagement with an attachment hub of a sander.

The present invention relates to an attachment hub for attachment to a sander, comprising a quick-release attachment assembly configured for releasable and aligned engagement with a counterpart of a backup pad particularly for an abrasive disc. Furthermore, the invention relates to a backup pad having a disc-like shape and comprising a first major surface and a second major surface, the first major surface configured for direct or indirect attachment of an abrasive disc, and the second major surface configured for facing towards an attachment hub for attachment to a sander, and a mounting portion for aligned engagement with an attachment hub of a sander.

A tool (1) for surface finish machining, having a cushion (6) made of an elastic plastics foam, on the underside of which there is formed a working medium face (2) having working media or adhesives (8, 11, 12, 13) for the releasable attachment of working medium discs and on the top side of which there is formed a drive receptacle (4, 5) for application of work, is created as a product that is producible easily and non-critically in high volume, is extremely robust in use, is moisture-resistant and is able to withstand high rotational speeds, in that the elastic plastics foam consists of closed-cell expanded and fused-together particles of a thermoplastic elastomer (TPE).

A tool (1) for surface finish machining, having a cushion (6) made of an elastic plastics foam, on the underside of which there is formed a working medium face (2) having working media or adhesives (8, 11, 12, 13) for the releasable attachment of working medium discs and on the top side of which there is formed a drive receptacle (4, 5) for application of work, is created as a product that is producible easily and non-critically in high volume, is extremely robust in use, is moisture-resistant and is able to withstand high rotational speeds, in that the elastic plastics foam consists of closed-cell expanded and fused-together particles of a thermoplastic elastomer (TPE).

An assembly for attachment of an accessory to a random-orbital sander is disclosed comprising a drive spindle, a support plate, one or more drive members located on and protruding from either of both of the drive spindle and/or the support plate, and one or more drive sockets corresponding to the one or more drive members. The one or more drive sockets are located on either or both of the drive spindle and/or the support plate. An attachment member adapted to protrude through an attachment aperture to fix the support plate and drive spindle against axial movement. One or more of the drive members seats within a corresponding drive socket to fix the drive spindle and support plate against relative rotational movement. One or more tuning members are positioned between the drive spindle and the support plate to space the support plate from the drive spindle a predetermined distance. A method of assembling a corresponding accessory to a random orbital sander and a method of balancing vibration in a random orbital sander by means of one or more tuning members are also disclosed.

An assembly for attachment of an accessory to a random-orbital sander is disclosed comprising a drive spindle, a support plate, one or more drive members located on and protruding from either of both of the drive spindle and/or the support plate, and one or more drive sockets corresponding to the one or more drive members. The one or more drive sockets are located on either or both of the drive spindle and/or the support plate. An attachment member adapted to protrude through an attachment aperture to fix the support plate and drive spindle against axial movement. One or more of the drive members seats within a corresponding drive socket to fix the drive spindle and support plate against relative rotational movement. One or more tuning members are positioned between the drive spindle and the support plate to space the support plate from the drive spindle a predetermined distance. A method of assembling a corresponding accessory to a random orbital sander and a method of balancing vibration in a random orbital sander by means of one or more tuning members are also disclosed.

A robotic paint repair system that can comprise: a consumable abrasive product configured to abrade a substrate, a tool configured to drive the consumable abrasive product to abrade, a robotic device configured to manipulate the tool and a compliant accessory actuator positioned between the tool and the substrate, wherein the compliant accessory actuator is driven to apply a desired force and a desired stiffness to the consumable abrasive product in response to sensed data collected between the tool and the substrate

A robotic paint repair system that can comprise: a consumable abrasive product configured to abrade a substrate, a tool configured to drive the consumable abrasive product to abrade, a robotic device configured to manipulate the tool and a compliant accessory actuator positioned between the tool and the substrate, wherein the compliant accessory actuator is driven to apply a desired force and a desired stiffness to the consumable abrasive product in response to sensed data collected between the tool and the substrate