5386results about "Abrasive machine appurtenances" patented technology

An auxiliary dust collection system can be interposed between a sander or other dust producing tool and a vacuum source, e.g., shop vacuum. This auxiliary system has a cyclonic separator connected by a flexible hose to the tool and by another hose to the vacuum source. The cone of the separator is mounted onto the lid of a drum into which the dust precipitates. For a tool that has its own blower, the vacuum source can be omitted, and the air leaving the outlet duct of the separator can be filtered and returned to the ambient. A drop in silencer formed of a sleeve or tube of acoustic foam can be positioned into the inlet side of a filter cartridge following a cyclonic separator. The silencer absorbs a significant fraction of the process noise.

A cutting head of a waterjet cutting system is provided having an environment control device and a measurement device. The environment control device is positioned to act on a surface of a workpiece at least during a measurement operation to establish a measurement area on the surface of the workpiece substantially unobstructed by fluid. The measurement device is positioned to selectively obtain information from within the measurement area indicative of a position of the cutting head relative to the workpiece. A control system is further provided and operable to position the cutting head relative to the workpiece at a standoff distance based at least in part on the information indicative of the position of the cutting head relative to the workpiece obtained by the measurement device. A method of operating a waterjet cutting system is also provided.

The invention discloses a pipeline inner wall rust removal device, belonging to the technical field of polishing units. The device comprises a first end cover and a second end cover which are hermetically installed at two ends of the pipeline, a rust removal trolley is arranged in the pipeline, the dust removal trolley comprises a pneumatic motor with dual output shafts, a shell of the pneumatic motor is provided with a plurality of support shafts, the end part of each support shaft is provided with a roller wheel, a grinding disc is fixedly installed on the output shaft of the pneumatic motor, close to the first end cover, and is provided with a plurality of support rods in the radial direction, the end part of each support rod is provided with an abrasive disc, the output shaft of the pneumatic motor, close to the second end cover, is connected with a shot-blasting machine in a transmission manner; the end part of the grinding disc is connected with a traction rope, the traction rope extends out of the first end cover, one end of the shot-blasting machine, close to the second end cover, is connected with a shot feeding pipe, the pneumatic motor is connected with a gas inlet pipe, the shot feeding pipe and the gas inlet pipe extend out of the second end cover. The pipeline inner wall rust removal device can be used for solving the technical problems that the pipeline inner wall is serious in rust removal pollution and the rust removal effect is poor, and can be widely applied to pipeline cleaning.

A powder blast tool for mixing a powder with a pressurised gas, having at least one powder reservoir, with supply lines for the pressurised gas, and a discharge line, which is connected to a discharge nozzle, at which a powder-gas mixture and optionally pressurised water are discharged, wherein the powder blast tool can preferably be connected to plural powder reservoirs simultaneously and exchangeably, wherein at least one receiving region with at least one mixture terminal and at least one gas terminal is disposed on the powder blast tool and wherein the powder reservoir has a coupling region for exchangeable connection of the powder reservoir to the powder blast tool. Also disclosed are a suitable powder reservoir and an insert for such powder reservoirs and a corresponding method of dental treatment.

A particle blast system includes a feeder assembly having a rotor with a plurality of pockets formed in the peripheral surface. The transport gas flowpath includes the pockets, such that substantially all transport gas flows through the pockets. The seal adjacent the peripheral surface is actuated by the transport gas pressure to urge its sealing surface against the rotor's peripheral surface. At start up, there is no substantial pressure between the seal and the rotor, reducing start up torque requirements.

The waste cutting suspension recovering process features that the waste linear cutting sand pulp from silicon chip processing is multiple stage treated through the steps of solid-liquid separation, initial filtering of the suspension, final filtering of the suspension, and concentrating and drying of the suspension. The process has recovered polyethylene glycol-base or oil-base suspension possess performance the same as or near that of new material and capacity of being reused. The present invention raises material using efficiency, lowers silicon chip producing cost and avoids environmental pollution caused by exhausting waste linear cutting sand pulp.

The invention provides a self-pressurized high-speed polishing method for the inner surface of a hole by means of abrasive particles and a magnetic flow. According to the method, the abrasive particles are coated with and restrained on the inner surface of the hole of a workpiece by the aid of ferromagnetic particles in a magnetorheological polishing fluid, which flows at a high speed, under the effect of a magnetic field produced by moving magnetic bodies, a flexible polishing abrasive brush flowing at a high speed is formed and reciprocates to rub against the inner surface of the hole of the machined workpiece to remove burrs and reduce the roughness of the inner surface of the hole, and burr removal and deterministic polishing are realized for various types of inner surfaces of holes. The invention further provides a self-pressurized high-speed polishing device for the inner surface of the hole by means of the abrasive particles and the magnetic flow. The device comprises a polishing mechanism, the magnetic bodies, a clamping mechanism, a sliding guide rail and a driving motor, wherein the driving motor drives the magnetic bodies to enable the polishing fluid to reciprocate in the hole at the high speed for polishing. The method and the device can solve problems that special holes are difficult to polish and the polishing efficiency is low, and have the advantages of high precision, high machining efficiency, low damage and low cost.

A magnetorheological fluid delivery system includes a mixing and tempering vessel. Fluid is admitted to the vessel via a plurality of tangential ports, creating a mixing of the fluid in the vessel and promoting homogeneity. Fluid may be reconstituted in the vessel by metered addition of carrier fluid. A fixed-speed centrifugal pump disposed in the vessel pressurizes the system. Fluid is pumped through a magnetic-induction flowmeter and a magnetic flow control valve having solenoid windings whereby MR fluid is magnetically stiffened to restrict flow. A closed-loop feedback control system connects the output of the flowmeter to performance of the valve. A nozzle having a slot-shaped bore dispenses MR fluid for re-use in the work zone. A planar-diaphragm flush-mounted pressure transducer at the entrance to the nozzle and flowmeter inferentially measure relaxed viscosity and provide signals to a computer for dispensing metered amounts of carrier fluid into the mixing vessel to assure correct composition of the reconstituted fluid as it is dispensed.

An abrasivejet cutting head is disclosed that includes a valve assembly for presenting back-flow to the abrasive hopper of abrasive-laden fluid from the cutting head when the discharge path for the abrasivejet becomes clogged or otherwise blocked. The valve assembly is positioned within the abrasive line to conduct abrasive from the hopper towards the abrasivejet nozzle. The valve assembly further includes a discharge path which is scaled off from the abrasive jet nozzle during normal operation in response to the relative lower pressure in the abrasivejet nozzle that results from the flowing fluid therein. If the jet path is blocked or impeded in a manner that causes a backflow of the abrasive-laden slurry therein, the cessation of low-pressure permits the backflowing slurry to exit via the discharge path and bypass the hopper, substantially avoiding the downtime previously required to clean the hopper.

The invention aims to provide an automobile hub abrasive flow deburring method which is low in cost and simple in structure and can be suitable for various complex conditions of burr removal of hubs with different structures. In order to fulfill the aim, the technical scheme is that the automobile hub abrasive flow deburring method comprises the following steps: 1, mounting the hub on automobile hub abrasive flow precise deburring and finishing equipment and fixing; 2, preparing viscoelastic abrasive flow with controllable rheological property and leading the abrasive flow into the automobilehub abrasive flow precise deburring and finishing equipment; 3, controlling the abrasive flow to perform rough machining on the hub; 4, controlling the abrasive flow to perform finish machining on the hub which is subjected to rough machining; and 5, finishing machining and the process procedures. Due to adoption of the technical scheme, the problems of difficulty in mass production and automaticproduction in automobile hub deburring and finishing and the like are solved by the abrasive flow, and the aims of improving work efficiency, reducing cost, reducing labor intensity and improving product reliability are fulfilled.

A portable microderm abrasion device is comprised of a hollow housing containing an electric motor that operates an air pump having air suction and air exhaust ports. A hollow, disposable exfoliation grit supply cartridge is removably located within an upper bay, while a separate hollow, disposable waste collection cartridge is also located within a lower bay in the housing directly beneath the grit supply cartridge. The two cartridges are separately removable from the housing. Grit from the supply cartridge is mixed with air drawn by a vacuum created by the air pump into a grit entrainment duct located within the waste collection cartridge and carried to a movable wand. A particulate filter located in the waste collection cartridge allows air, but prevents solid waste material, from being discharged to ambient atmosphere. Safety features include a timer and/or a motion sensor to reduce or cut off vacuum in the line if the grit dispensing and retrieval tip of the wand remains in a static condition or exerts a vacuum for too long a period of time upon the skin of the subject.

A waterjet system selectively produces fluid jets for water jet cutting or abrasive jets for abrasive-waterjet-cutting. The abrasive materials in the abrasive jet are determined based on the properties of the workpiece. The waterjet system includes an abrasive delivery system that is capable of delivering either a single abrasive or a plurality of abrasives as an abrasive blend, to a cutting head assembly. The cutting head assembly entrains the abrasive into a fluid jet to form an abrasive jet.

The invention belongs to equipment for cleaning the surface of a machine element by utilizing a shot blasting method, in particular to an automotive gear enhanced shot blasting machine. According to the technical proposal provided by the invention, the shot blasting machine is arranged on a shot blasting cleaning chamber. The invention is characterized in that a suspend conveyer installed on a supporting bracket is arranged at the upper part of the shot blasting cleaning chamber, the suspend conveyer is in a sealed state and circled around the shot blasting cleaning chamber, and one section passes through the shot blasting cleaning chamber, a plurality of rotating racks which can rotate under the driving of the suspend conveyer are suspended on the suspend conveyer, a curtain separator is arranged above/on the shot blasting cleaning chamber, a chamber hoisting gear is arranged on the flank of the shot blasting cleaning chamber, and a worm conveyer is arranged at the bottom of the shot blasting cleaning chamber. The input end of the curtain separator is connected with the output end of the chamber hoisting gear, and the output end of the worm conveyer is connected with the input end of the chamber hoisting gear. The invention can improve the effect of the shot blasting cleaning and the quality of the product.

An improved orifice assembly for use with an ultra high pressure fluid jet cutting apparatus is disclosed. The improved orifice assembly generally includes an orifice body defining a central bore, a high pressure inlet cavity located at an upstream portion of the body, a mixing cavity located at a downstream portion of the body, and an abrasive material inlet bore that is in direct communication with the mixing cavity. The inlet or high pressure cavity preferably has a cylindrical cross section at the side wall portion and a generally flat bottom wall, with a constant radius transition portion between the side and bottom walls. A jeweled orifice is preferably located at the bottom wall and forms a portion thereof. A chamfer at the downstream portion of the mixing chamber permits appropriate coaxial alignment of a mixing tube with the jeweled orifice so as to preserve proper fluid flow characteristics. In addition, the incorporation of a soft seal between the mating surfaces of the inlet body and the orifice assembly permit easy user removal of these components from a cutting jet system.

A dust collection system for portable sanding or grinding equipment employs a cyclone separator mounted directly on the tool or machine, with a dust outlet duct at the narrow lower end of the cyclone, and a cartridge air filter mounted on the top of the cyclone. The filter returns the air flow from the machine to the ambient air in the vicinity of the tool. The dust is concentrated in the cyclone, and a small volume air flow then moves the dust through an elongated flexible hose or duct to a remote dust collection station. An air pump at the remote dust collection station provides sufficient air flow to draw the small volume of air plus entrained dust from the tool-mounted cyclonic separator. A cyclonic separator at the remote station separates this dust from the air flow and deposits it in a collection tank or drum.