A machining apparatus includes a transfer mechanism portion and a grinding wheel unit. The transfer mechanism portion transfers a tapered roller having a large end face directed outward in a radial direction by causing the tapered roller to revolve about a vertical line while causing the tapered roller to rotate. The grinding wheel unit is substantially C-shaped, and has a grinding wheel surface that comes in sliding contact with the large end face of the transferred tapered roller on an inner peripheral side thereof. The grinding wheel unit has a substantially C-shaped seat fixed to an apparatus main body, and a grinding wheel body that is separate from the seat and is detachably mounted to the seat. The grinding wheel body is substantially C-shaped, and has the grinding wheel surface on an inner peripheral side thereof. The grinding wheel body is constituted by segments disposed along a circumferential direction.

A machining apparatus includes a transfer mechanism portion and a grinding wheel unit. The transfer mechanism portion transfers a tapered roller having a large end face directed outward in a radial direction by causing the tapered roller to revolve about a vertical line while causing the tapered roller to rotate. The grinding wheel unit is substantially C-shaped, and has a grinding wheel surface that comes in sliding contact with the large end face of the transferred tapered roller on an inner peripheral side thereof. The grinding wheel unit has a substantially C-shaped seat fixed to an apparatus main body, and a grinding wheel body that is separate from the seat and is detachably mounted to the seat. The grinding wheel body is substantially C-shaped, and has the grinding wheel surface on an inner peripheral side thereof. The grinding wheel body is constituted by segments disposed along a circumferential direction.

An apparatus for polishing a butt weld includes a machine frame; a polishing mechanism, including a rotating arm, a supporting column rotatably mounted on the rotating arm, and a polishing roll rotatably mounted on the supporting column in a circumferential direction of the polishing roll; an angle limiting assembly, movably mounted on the rotating arm, the angle limiting assembly limiting an angle at which an outer side end of the supporting column swings upward; a roll driving part, mounted on the rotating arm. The roll driving part is in transmission connection with the polishing roll and drives the polishing roll to rotate on the supporting column in the circumferential direction of the polishing roll. An arm driving part is mounted on a fixed frame, the rotating arm being mounted on the arm driving part, and the arm driving part drives the rotating arm to rotate in a circumferential direction.

The present invention in one or more embodiments provides a roller tool for roughening a friction ring of a brake disk, the roller tool including a roller body including inner and outer ends and a casing surface positioned there-between, the inner end differing in cross-section dimension than the outer end, the casing surface including thereupon one or more protrusions for contacting the friction ring. The roller tool may further include a support frame supporting the roller body. The support frame may include a short leg connected to the outer end of the roller body and a long leg connected to the inner end of the roller body.

The present invention in one or more embodiments provides a roller tool for roughening a friction ring of a brake disk, the roller tool including a roller body including inner and outer ends and a casing surface positioned there-between, the inner end differing in cross-section dimension than the outer end, the casing surface including thereupon one or more protrusions for contacting the friction ring. The roller tool may further include a support frame supporting the roller body. The support frame may include a short leg connected to the outer end of the roller body and a long leg connected to the inner end of the roller body.

The present invention relates to a method of surface friction treatment of a ceramic-reinforced aluminum matrix composite brake disc. By means of the surface friction treatment, a layer of restructured film is formed on a friction surface of the ceramic-reinforced aluminum matrix composite brake disc. Surface friction will form abrasive particles comprising aluminum alloy abrasive particles and ceramic abrasive particles on the friction surface, and an instantaneous high temperature generated during friction melts part of the aluminum alloy abrasive particles and oxidizes a surface of part of the ceramic abrasive particles and the aluminum alloy abrasive particles, and meanwhile under friction force and pressure, the abrasive particles comprising the molten and softened aluminum alloy abrasive particles, ceramic abrasive particles, and their surface oxidation products are broken, mixed, extruded, and bonded to form a layer of restructured film.

The present invention relates to a method of surface friction treatment of a ceramic-reinforced aluminum matrix composite brake disc. By means of the surface friction treatment, a layer of restructured film is formed on a friction surface of the ceramic-reinforced aluminum matrix composite brake disc. Surface friction will form abrasive particles comprising aluminum alloy abrasive particles and ceramic abrasive particles on the friction surface, and an instantaneous high temperature generated during friction melts part of the aluminum alloy abrasive particles and oxidizes a surface of part of the ceramic abrasive particles and the aluminum alloy abrasive particles, and meanwhile under friction force and pressure, the abrasive particles comprising the molten and softened aluminum alloy abrasive particles, ceramic abrasive particles, and their surface oxidation products are broken, mixed, extruded, and bonded to form a layer of restructured film.

An apparatus for polishing a butt weld includes a machine frame; a polishing mechanism, including a rotating arm, a supporting column rotatably mounted on the rotating arm, and a polishing roll rotatably mounted on the supporting column in a circumferential direction of the polishing roll; an angle limiting assembly, movably mounted on the rotating arm, the angle limiting assembly limiting an angle at which an outer side end of the supporting column swings upward; a roll driving part, mounted on the rotating arm. The roll driving part is in transmission connection with the polishing roll and drives the polishing roll to rotate on the supporting column in the circumferential direction of the polishing roll. An arm driving part is mounted on a fixed frame, the rotating arm being mounted on the arm driving part, and the arm driving part drives the rotating arm to rotate in a circumferential direction.

An apparatus for polishing a butt weld includes a machine frame; a polishing mechanism, including a rotating arm, a supporting column rotatably mounted on the rotating arm, and a polishing roll rotatably mounted on the supporting column in a circumferential direction of the polishing roll; an angle limiting assembly, movably mounted on the rotating arm, the angle limiting assembly limiting an angle at which an outer side end of the supporting column swings upward; a roll driving part, mounted on the rotating arm. The roll driving part is in transmission connection with the polishing roll and drives the polishing roll to rotate on the supporting column in the circumferential direction of the polishing roll. An arm driving part is mounted on a fixed frame, the rotating arm being mounted on the arm driving part, and the arm driving part drives the rotating arm to rotate in a circumferential direction.

Stored is a height of a grinding mechanism when lower surfaces of grinding stones have come into contact with an upper surface of a wafer held on a holding surface, through lowering of the grinding mechanism from above the wafer. Based on this height, an origin point height which is a height of the grinding mechanism when the lower surfaces of the grinding stones have come into contact with the holding surface is then determined.