The invention discloses a seamless flowing type finishing machine, comprising a supporting frame; the supporting frame is provided with a lower container, an upper container and a tray; the tray is movably connected with the lower container. A plurality of bolts is arranged between the lower container and the upper container for connection; springs are arranged at the connections of the bolts. The upper edge of the tray extends to the lower edge of the upper container; with the elastic force of the springs, the lower edge of the upper container clings to the upper edge of the tray so as to form a seamless connecting structure; a water outlet is arranged on the tray. A water-filling nozzle is arranged on the sidewall of the lower container. The seamless flowing type finishing machine disclosed by the invention can be used for processing of various ultra-small parts.

A masking tool system includes a first masking body and a second masking body. The first masking body includes a bore passing through a portion of the first masking body and a first sealing element disposed on a first end of the first masking body. The second masking body includes a bore passing through the second masking body and a second sealing element disposed on a first end of the second masking body. The system may also include a rod configured to pass through the bores of the first and second masking bodies and to secure the first and second masking bodies to a metallic article placed therebetween. A diagonal length of the masking tool system induces a wobbling rotation during processing.

A masking tool system includes a first masking body and a second masking body. The first masking body includes a bore passing through a portion of the first masking body and a first sealing element disposed on a first end of the first masking body. The second masking body includes a bore passing through the second masking body and a second sealing element disposed on a first end of the second masking body. The system may also include a rod configured to pass through the bores of the first and second masking bodies and to secure the first and second masking bodies to a metallic article placed therebetween. A diagonal length of the masking tool system induces a wobbling rotation during processing.

The present invention provides a resurfacing ball container for repeated removal of dirty, used or damaged surfaces from a plurality of India rubber type bounce balls. The resurfacing ball container also allows for easy transport and storage of balls during periods of non-use. The resurfacing ball container includes a cylinder with a lid and an abrasive surface rotating within the cylinder for resurfacing the contained balls.

The present invention provides a resurfacing ball container for repeated removal of dirty, used or damaged surfaces from a plurality of India rubber type bounce balls. The resurfacing ball container also allows for easy transport and storage of balls during periods of non-use. The resurfacing ball container includes a cylinder with a lid and an abrasive surface rotating within the cylinder for resurfacing the contained balls.

The invention discloses a seamless flowing type finishing machine, comprising a supporting frame; the supporting frame is provided with a lower container, an upper container and a tray; the tray is movably connected with the lower container. A plurality of bolts is arranged between the lower container and the upper container for connection; springs are arranged at the connections of the bolts. The upper edge of the tray extends to the lower edge of the upper container; with the elastic force of the springs, the lower edge of the upper container clings to the upper edge of the tray so as to form a seamless connecting structure; a water outlet is arranged on the tray. A water-filling nozzle is arranged on the sidewall of the lower container. The seamless flowing type finishing machine disclosed by the invention can be used for processing of various ultra-small parts.

Disclosed herein is a method for inner surface finishing of a workpiece, in which the inner surface of the workpiece defines an opening with axial symmetry around the longitudinal axis of the workpiece. The method may include the following steps. An abrasive medium may be poured inside the opening; urging the abrasive medium to rotate about the longitudinal axis, thereby imposing a centrifugal force on the abrasive medium to accelerate the abrasive medium outwards from the center of rotation towards the inner surface of the opening, where the abrasive medium impacts the inner surface of the opening; and the workpiece may be rotated about the longitudinal axis in a direction opposite the first direction, concurrently.

A barrel polishing apparatus according to an aspect includes a fixed tank and a rotary disk that define a polishing space. The fixed tank has a predetermined axis as a center axis. The fixed tank includes a cylindrical rigid body and a first lining covering an inner circumferential surface of the cylindrical rigid body. The rotary disk has a disk-shaped rigid body and a second lining covering a surface of the disk-shaped rigid body on the polishing space side, and is rotatably disposed in a state where a gap is formed between the first lining and the second lining. The disk-shaped rigid body has a convex portion protruding toward the polishing space along a predetermined axis direction. The length in the predetermined axis direction of the part overlapping the gap of the convex portion is one-third or more of the length in the predetermined axis direction of the gap.

A barrel polishing apparatus according to an aspect includes a fixed tank and a rotary disk that define a polishing space. The fixed tank has a predetermined axis as a center axis. The fixed tank includes a cylindrical rigid body and a first lining covering an inner circumferential surface of the cylindrical rigid body. The rotary disk has a disk-shaped rigid body and a second lining covering a surface of the disk-shaped rigid body on the polishing space side, and is rotatably disposed in a state where a gap is formed between the first lining and the second lining. The disk-shaped rigid body has a convex portion protruding toward the polishing space along a predetermined axis direction. The length in the predetermined axis direction of the part overlapping the gap of the convex portion is one-third or more of the length in the predetermined axis direction of the gap.

A work container for a vibratory grinding system has a wall component that is provided with macro elevations and with micro elevations.