3669results about "Grinding machine components" patented technology

In a depressed-center abrasive wheel assembly a reinforcement layer of polygonal shape is located between a front face of the abrasive wheel and a front flange. The reinforcement layer is dimensioned to entirely cover the depressed center portion of the wheel. An example of polygonal reinforcement layer has a hexagonal shape and is made of fiberglass cloth. A polygonal shape reinforcement layer can also be employed between the front flange and the front face in an abrasive flat wheel assembly that employs a wheel without internal reinforcement.

A steam generating apparatus, and an oven including the same. The apparatus includes a water tank adapted to enable convenient cleaning, and is adapted to heat water in the water tank via an induction heating method to generate steam rapidly. The water tank is provided with a steam discharging pipe. The apparatus further includes an induction coil assembly, an induction heating member fitted to the water tank such that it is located near the induction coil assembly, a barrier inserted into the water tank such that only a small amount of water is directly heated by the induction heating member which generates heat by the induction coil assembly, and a cover closing an upper portion of the water tank. The steam discharging pipe is connected with a steam supplying pipe which communicates a cavity with a cooking compartment to supply steam from the apparatus to the cooking compartment.

A method and apparatus for finishing a workpiece surface using MR fluid is provided wherein the workpiece is positioned near a carrier surface such that a converging gap is defined between a portion of the workpiece surface and the carrier surface; a magnetic field is applied substantially at said gap; a flow of stiffened MR fluid is introduced into said converging gap such that a work zone is created in the MR fluid to form a sub-aperture transient finishing tool for engaging and causing material removal at the portion of the workpiece surface; and the workpiece or the work zone is moved relative to the other to expose different portions of the workpiece surface to the work zone for predetermined time periods to selectively finish said portions of said workpiece surface to predetermined degrees.

The invention provides an axial shiftable type abrasive wheel and an intelligent adjustment device of the axial shiftable type abrasive wheel. The abrasive wheel is adjustably arranged on a spindle and comprises a cylindrical abrasive wheel body, an elastic locking sleeve and a tightening mechanism, wherein the elastic locking sleeve is movably arranged on the spindle, and the tightening mechanism is arranged between the abrasive wheel body and the elastic locking sleeve. Two conical inner walls are formed on the abrasive wheel body, two conical outer walls opposite to the conical inner walls are formed on the elastic locking sleeve, and two wedge-shaped grooves are formed between the two conical inner walls and the two conical outer walls, wherein openings of the two wedge-shaped grooves are formed in the two ends of the abrasive wheel body. The tightening mechanism comprises two wedge-shaped lantern rings and a plurality of bolts, wherein the two wedge-shaped lantern rings are embedded into the two wedge-shaped grooves and can shrink and expand, the bolts are connected between the two wedge-shaped lantern rings, one wedge-shaped lantern ring is provided with through holes which are transversely through and allow the bolts to penetrate through, the other wedge-shaped lantern ring is provided with screw holes matched with the bolts, the two wedge-shaped lantern rings can be driven to move oppositely by screwing up the bolts, the wedge-shaped lantern rings expand under the effect of the wedge-shaped grooves to apply radial force to the elastic locking sleeve, and then the elastic locking sleeve clasps the spindle.

A processing apparatus is provided to process a workpiece. The processing apparatus can have a low-profile nozzle system capable of navigating through spaces in order to process target regions with relatively small clearances. A fluid jet outputted from the nozzle system is used to cut, mill, or otherwise process the target region of the workpiece.

A cleaning element (36) for a cement floor surface mounted to a housing (32). Each cleaning element has a flat flexible abrasive surface (39) that is transversely positioned to the direction of motion to provide flex during cleaning of a cement floor surface.

A distributor plate adapted to be releasably mounted on a horizontal lower disc of a rotor of a vertical shaft impact crusher. The rotor has an opening for the intake of material to be crushed and at least one outflow opening for material leaving the rotor. The distributor plate is an equilateral polygon as seen from above.

A set of supports are advantageously disposed on a top plate having a polishing surface useful for polishing workpieces, thereby applying substantially uniform pressure to the top plate. In a preferred embodiment, the supports are non-isosceles triangular elements distributed evenly at 45 degree increments around a ring-shaped top plate. This structure effectively compensates for radial stress variations arising from non-optimum positioning of support points with respect to the inner and outer diameters of the polishing surface.

The invention discloses a dynamic load type flexible polishing head and relates to a curve machining tool. The dynamic load type flexible polishing head is provided with a motor, a motor base, a coupling, an upper end cover, a rotating shaft, a bearing, a box body, a lower end cover, a front shaft sleeve, a shaft end connecting head, an elastic sleeve, a locking sleeve and an air bag, wherein the box body is connected below the motor base, the upper end cover is fixed on the box body, the lower end cover is fixed at the lower part of the box body, the front shaft sleeve is connected with the rotating shaft, the shaft end connecting head is connected with the front shaft sleeve, the air bag is fastened on the shaft end connecting head by the elastic sleeve, and the locking sleeve and the shaft end connecting head are joined with each other and clamp the elastic sleeve and the air bag between the locking sleeve and the shaft end connecting head.

The invention discloses a device and a method for automatic feeding and discharging of stone slabs. The device comprises a structural support provided with both a horizontal moving mechanism and a vertical moving mechanism, wherein a plurality of roller beds arranged in parallel at intervals are arranged below the structural support and are used for conveying slabs; the horizontal moving mechanism moves horizontally along the structural support and moves longitudinally along longitudinal beams of the structural support under driving of a driving device; the vertical moving mechanism moves vertically relative to the roller beds, and is mounted on a transverse beam of the structural support; moreover, a lifting appliance device connected with the vertical moving mechanism is arranged at the bottom of the vertical moving mechanism. According to the invention, automatic grabbing of the stone slabs is realized by utilization of sucking disks, and application of sucking disk sponge ensures the situation that the sucking disks can still grab the stone slabs firmly under unevenness of surfaces of the stone slabs; horizontal movement of the stone slabs is realized by the horizontal moving mechanism, and vertical movement of the stone slabs is realized by the vertical moving mechanism; the stone slabs can be automatically adjusted to be in the right positions by a piece pushing mechanism.

The invention relates to an eccentrically rotary swinging tool (1) which comprises a shell (2), an electric motor (4) arranged on the shell, a motor shaft (11), a first annular outer pad (16) connected with a first frosted piece (8) and a second round inner pad (22) connected with a second frosted piece (9); a vibration absorber (10) transmits the energy of the electric motor (4) to pads (6 and 22) through reverse movement, thereby inertia and friction are compensated by motion. At the same time, the vibration which is transmitted to the motor shaft (11) and then to an operator of the tool is greatly reduced. Even if the operator increases the force to the eccentrically rotary swinging tool (1) in order to increase the depth of grinding or to improve the speed of the grinding, the same effect also can be obtained. To achieve the aim, cams (18a and 18b) are fixed on the motor shaft (11) and drive center lines (5 and 21) of the pads (6 and 22) to rotate 180 degrees reversely around the center line (12) of the electric motor.

A circular saw includes a worktable, a mounting seat extending upwardly from the worktable for mounting a motor thereon, a blade supporting unit pivotally mounted on the mounting seat at a pivot end so that an opposite free end is turnable to be close to and away from the worktable, and a saw blade shaft mounted rotatably on the blade supporting unit about a blade axis parallel to an output shaft axis of an output shaft of the motor and having a saw blade mounted thereon. The saw blade shaft is coupled to the output shaft by a drive transmitting unit which transmits driving force of the output shaft to the saw blade shaft so as to rotate the saw blade.

A suspension device for coupling a surface maintenance appliance to a surface maintenance machine is disclosed. The suspension device includes a carriage member movably supported upon the maintenance machine through a plurality of linkages coupled to the carriage member. Together the plurality of linkages permit the carriage and surface maintenance appliance to follow undulations in the floor surface during operation of the surface maintenance machine. An actuator engages a lost motion device to lift the carriage member away from the ground surface. A variety of different floor surface maintenance appliances may be coupled to surface maintenance vehicles according to aspects of the present invention.

The invention discloses a small-caliber non-spherical permanent magnet magnetorheological polishing processing machine tool, which belongs to the technical field of grinding-polishing processing, and is used for solving the problem that the shape and size accuracy requirements of a processed part cannot be met since each position of a small-caliber non-spherical curved surface to be processed cannot be contacted during processing of workpieces with the conventional polishing processing equipment. A workbench is arranged on an X axis linear unit of an XY precision movable platform; an organ protection cover is arranged between the edge of the workbench and a cover plate; a workpiece main shaft is arranged on the workbench through a workpiece main shaft bracket; a Z axis linear unit is arranged on a portal frame; a revolving table is arranged on the Z axis linear unit through a right-angle connecting frame; the shaft end of a rotating shaft in the revolving table is connected with a polishing head main shaft bracket through a two-dimensional precision fine adjustment displacement table; and the polishing head main shaft bracket has a certain inclination angle, so that an included angle between a polishing head main shaft on the polishing head main shaft bracket and a horizontal plane is 40-45 degrees. The machine tool is suitable for ultra-precision polishing processing of high-accuracy small-caliber non-spherical parts.

Abrasive article including a backing plate. Backing plate has a first major surface and a second opposite major surface. A central aperture extends through backing plate. An abrasive layer is secured to the first major surface of backing plate. A fastener is press fit to backing plate so as to define the central aperture.