An air cylinder that changes the posture of an automatic wet sanding unit main body having sandpaper mounted thereon is provided with a guide rod, and an outer circumferential surface of the guide rod has grooves that extend along a shaft centerline of the guide rod and have an arc-shaped cross-section. Balls are interposed between a bottom of each groove and an inner surface of a bush that is provided inside the air cylinder. Thus, it is possible to make two objects compatible with each other: to achieve high-accuracy automatic wet sanding by enhancing the adaptability of the sandpaper to the shape of a painted surface through a reduction of the diameter of the piston rod; and to enhance the durability of the automatic wet sanding apparatus.

A grinding package fitted on robotic arm includes a main body, a pneumatic motor, a bridging part and a grinding tool. The main body is formed with a first space, a second space, a communicating hole communicating the first space to the second space, a connecting wall within the first space, an intake channel, an exhaust channel, openings of the first space and the second space respectively located on each of two parallel sides of the main body, the connecting wall having a ventilation hole. The pneumatic motor includes a motor body within the first space, and a transmission shaft connected to the motor body while extended from the second space through the communicating hole. The bridging part is combined with the main body and the robotic arm, the bridging part closing off the first space, the grinding tool facing the second space and being joined to the transmission shaft.

A grinding package fitted on robotic arm includes a main body, a pneumatic motor, a bridging part and a grinding tool. The main body is formed with a first space, a second space, a communicating hole communicating the first space to the second space, a connecting wall within the first space, an intake channel, an exhaust channel, openings of the first space and the second space respectively located on each of two parallel sides of the main body, the connecting wall having a ventilation hole. The pneumatic motor includes a motor body within the first space, and a transmission shaft connected to the motor body while extended from the second space through the communicating hole. The bridging part is combined with the main body and the robotic arm, the bridging part closing off the first space, the grinding tool facing the second space and being joined to the transmission shaft.

The application discloses a wheel burr removing device, which includes a lower brush system, a synchronous clamping and rotating system, an upper brush system and the like. The device may be used for removing burrs from a riser, an upper flange, a center hole and a flange plate edge of a wheel, and has the characteristics of high automation degree, advanced process, strong universality and high safety and stability at the same time.

The application discloses a wheel burr removing device, which includes a lower brush system, a synchronous clamping and rotating system, an upper brush system and the like. The device may be used for removing burrs from a riser, an upper flange, a center hole and a flange plate edge of a wheel, and has the characteristics of high automation degree, advanced process, strong universality and high safety and stability at the same time.

The invention relates to a finishing device for removing the weld bead generated during welding of a window or door frame or frame section at the mitered surfaces, wherein the finishing device comprises a support surface for the frame or frame section and a processing arm for supporting a tool holder, and the processing arm consists of a plurality of arm elements that move in hinged fashion relative to one another but can also be fixed in place, wherein the tool holder comprises at least two cutting tools driven by a rotational drive, said tools rotating about a tool axis and at least one tool laterally next to the blade of the tool, contact sides.

The invention relates to a finishing device for removing the weld bead generated during welding of a window or door frame or frame section at the mitered surfaces, wherein the finishing device comprises a support surface for the frame or frame section and a processing arm for supporting a tool holder, and the processing arm consists of a plurality of arm elements that move in hinged fashion relative to one another but can also be fixed in place, wherein the tool holder comprises at least two cutting tools driven by a rotational drive, said tools rotating about a tool axis and at least one tool laterally next to the blade of the tool, contact sides.

Abrasives, a polishing composition, and a polishing method that can reduce undulation of an outer surface of a resin coating by polishing with reduced occurrence of polishing flaws. The polishing composition includes abrasives of aluminium oxide particles having a specific surface area of 5 m.sup.2/g or more and 50 m.sup.2/g or less and an average secondary particle diameter of 0.05 m or more and 4.8 m or less. This polishing composition can be used for polishing an outer surface of the resin coating.

A window processing system and method for use in fabricating window frames or sashes. The system includes an articulating arm having a plurality of members and arms to allow movement about multiple axes defined by the articulating arm. The system further includes a tool support fixture assembly coupled to an outermost member of the plurality of members, the tool support fixture assembly includes a plurality of tools for performing cleaning operations on a window frame or sash during use.

A window processing system and method for use in fabricating window frames or sashes. The system includes an articulating arm having a plurality of members and arms to allow movement about multiple axes defined by the articulating arm. The system further includes a tool support fixture assembly coupled to an outermost member of the plurality of members, the tool support fixture assembly includes a plurality of tools for performing cleaning operations on a window frame or sash during use.