2886results 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.

The present invention relates to a device in the technical field of material processing, in particular to a peener which carries out the surface deformation strengthening process on magnesium alloy samples. The present invention comprises a main peening system, an upper whirlwind separation system, a dedusting system, an air compression system and an electric system, wherein, the upper whirlwind separation system is positioned on the upper end of the main peening system, the lower part of the upper whirlwind separation system is communicated with the main peening system, the upper part is connected with the dedusting system, which is positioned outside the main peening system, the air inlets of both the dedusting system and the main peening system are connected with the air compression system, and the electric system is connected with the main peening system, the upper whirlwind separation system, the dedusting system and the air compression system. The present invention can conveniently assemble and disassemble the samples of the shaft class, the range of the generated peening strenghth is wide, the effect and uniformity of peening is good, and moreover, pollution can be prevented.

The invention discloses a special clamp for abrasive flow polishing of a narrow flow passage closed impeller flow passage. The special clamp comprises an upper mold, a lower mold, a floating lock and a gasket support plate, wherein the upper mold and the lower mold form a cylindrical cavity; the inner diameter of the cylindrical cavity is greater than the diameter of the impellers; the gasket support plate is a round disc having the diameter as the same as the diameter of the impellers; the floating lock consists of an upper round disc and a lower round disc and a double-head stud and a bolt which are used for connecting the two round discs; the mounted floating lock can move between the gasket support plate and the lower mold; the impellers are arranged on the gasket support plate, and are fastened by the upper mold and the lower mold; and the upper mold and the lower mold are positioned through seam allowance, and are fixed by the bolts. The clamp for abrasive flow machining of the narrow plow passage closed impellers can be used for fixing the impellers and can guide abrasive materials to flow through the surface of the impeller flow passage, and keep a given pressure so as to grind and polish the internal part of the impeller flow passage, form a circular loop and realize reciprocating flow of the abrasive materials.

A system and method for managing abrasive blasting may include timing duration of blast media being blown in performing abrasive blasting using an abrasive blasting machine. Time duration that an operator worked in association with the duration of the blast media being blown may be received. A blasting efficiency ratio may be computed based on the duration of the blasting media being blown and duration of that the operator worked. The blasting efficiency ratio may be displayed to a user.

A media blast nozzle for cleaning a surface with compressed air and ejected particles of a sublimating blast media comprises a media size changer to change a size of the blast media particles. The media blast nozzle has an entrance and an exit and a throat therebetween. A converging passageway extends from the entrance to the throat, and a diverging passageway extends from the throat to the exit. The media size changer is operably located in the diverging passageway and has one or more media size changing members to fragment moving blast media particles by impact therewith. The blast media particles are provided to the media blast nozzle in an initial consistent size, and when a moving blast media particle impacts with one or more media size changing members, two or more fragments of reduced size are created from the initial blast media particle for ejection from the nozzle device. The media size changer can be adjusted by an operator to eject whole particles or fragments of particles. The size of the ejected particle fragments can also be adjusted with the media size change

A system and method for improving a tool tip path of a machine, such as a waterjet cutting machine, by testing and compensating for tool misalignment. The system and method using a sensor positioned to sense a portion of the machine, such as a cutting head assembly, during a sequence of movements thereof and configured to output information indicative of various positions and orientations of a tool of the machine so as to generate an improved tool tip path based on transformation parameters derived from such information.

The invention discloses a polishing method for rotating an abrasive stream of an entire impeller part. The polishing method is characterized by comprising the following steps of: firstly, protecting non-polished faces, such as upper and lower end faces of an impeller and outer edges of blades, by virtue of a special shape clamp cover, and integrally fixing with a workpiece; secondly, properly buffering and adjusting before the workpiece is polished by abrasive through an abrasive stream drainage device, so that a pressure field in a sealing cavity is uniformly distributed; thirdly, driving an equipment spindle and the workpiece to rotate by using a power system consisting of a motor and a speed reducer; and finally, converting to a high-pressure water cleaning system to wash the workpiece and an equipment pipeline after polishing. According to the polishing method provided by the invention, the problems in a polishing process of the entire impeller part of easiness of interference, excessive polished blades, chamfering, dead angle and uniform polishing can be solved; the abrasive circularly flows in double directions so as to be easy to recycle; the machining efficiency is improved; and clean-in and clean-out in a machining process can be realized through the water washing system after the polishing process.

A pre-stressing and grit-blasting technique for shaping a double-curvature plate wall used as the thick jacket of large airplane features that a pre-stressing fixture unit is used to pre-bend a plate longitudinally and transversely and fix it for applying a pre-stress to it while the grits are blasted onto said plate for obtaining a needed shape.

A branch portion 2c is provided with a branch track 6 for guiding a carrier 8 having been guided in a straight line direction so as to change the traveling direction thereof, and a linear track 5 for guiding the carrier in the straight line direction. A switching unit switches between the branch track 6 and the linear track 5 so as to guide the carrier 8 by one of the branch track 6 and the linear track 5 in accordance with the traveling direction of the carrier 8.

The invention discloses a freight car high pressure water jet derusting production line and a process thereof, comprising high-pressure pump units, the power and control system, a water container and a prepositive centrifugal pump as well as a precise filter positioned in front of the high-pressure pump inlet; the high-pressure pump is connected with high pressure water jet cleaning devices through a high-pressure hose and a control valve. The high pressure water jet cleaning devices refers to the high pressure water rotating nozzle or spray gun. The high pressure water rotating nozzle is provided with a cover or without a cover outside. The cover is communicated with a vacuum recovery system. The sewage in the vacuum tin and the sewage collected are all sent to the water filter recovery system. The production line has the advantages of high derusting efficiency, good effect and dryness on derusting.

Disclosed is a system and method to monitor and count particles removed from a component. The particle monitoring system includes a jet spray device, a snow generator, a particle collection device, and a particle counter. The jet spray device includes an outlet that is disposed locally relative to the component. The snow generator is operable to generate cleaning snow comprising a stream of ice particles, wherein the cleaning snow is emitted from the outlet of the jet spray device onto the component to cause the ejection of particles from the component. The particle collection device includes a collector that is disposed locally around the component to collect particles ejected from the component. The particle counter is coupled to, and in fluid communication with, the particle collection device. The particle counter is operable to detect and count particles ejected from the component.

The present invention provides a sponge blasting apparatus comprising: a recovering unit which sucks and recovers a blasting medium jetted out of a nozzle; a sorting unit which sorts the blasting medium sucked and recovered by the recovering unit into a reusable blasting medium and an unreusable blasting medium; a blower which gives a sucking force to the recovering unit via the sorting unit; a dust collector which removes dust from an exhaust air discharged from the sorting unit with a sucking force of the blower; a picking-apart unit which picks apart the reusable blasting medium sorted by the sorting unit; a continuous feeder which, having at least two reservoir tanks into which the reusable blasting medium picked apart by the picking-apart unit is inputted, changes over the two tanks between each other to continuously feed the nozzle with the blasting medium deposited in the tanks; and a carrier which carries to the continuous feeder the reusable blasting medium sorted by the sorting unit.

The present invention refers to a motorized tool with suction and dust collection capacity. The tool comprises: means for extracting dust suitable for producing a flow of air; means for collecting dust having a first duct for the entrance of the air, that can be connected separately to said tool, and at least one second duct for the air, connected to the outside environment; said means for collecting dust include a filtering element positioned between said first duct and said second duct. Said filtering element defines an internal space and an external space surrounding said internal space, one of which is in communication with said first duct and the other is in communication with said second duct.

A waterjet cutting head assembly is provided which includes an orifice unit to generate a high-pressure waterjet, a nozzle body and a nozzle component coupled to the nozzle body with the orifice unit positioned therebetween. The nozzle component may include a waterjet passage, at least one jet alteration passage and at least one environment control passage. The jet alteration passage may intersect with the waterjet passage to enable selective alteration of the waterjet during operation via the introduction of a secondary fluid or application of a vacuum. The environment control passage may include one or more downstream portions aligned relative to the fluid jet passage so that gas passed through the environment control passage during operation is directed to impinge on an exposed surface of a workpiece at or adjacent to a location where the waterjet is cutting the workpiece. Other high-pressure waterjet cutting systems, components and related methods are also provided.

Blast-cleaning systems are disclosed, which enable a single system to handle different classes of particulate blasting media, such as grit, powder, and dry ice, and to deliver controllable mixtures of different media types during a blasting operation. This “multi-media” system includes a hopper having two chambers or other supply assemblies that are isolated from each other, for holding two different types of blasting media. Both chambers provide their particulates to a metering control device, which supplies a compressor. For example, by combining grit with dry ice, extremely efficient cleaning can be accomplished, with greatly reduced production of solid waste. Tests have shown that combinations of dry ice (at roughly 90%) with a grit or powder can provide far greater cleaning efficiency than either media type by itself.

The invention relates to a semi-automatic glass sandblasting machine, which comprises a base, a frame, a sand storage tank, a semi-tight work cavity, a dust collection fan, a baffle, a clamp push plate, a work bench and the like. The work bench is connected with a rotary motor through a shaft and a belt hoop; the clamp push plate is connected with the baffle through a bracket and a threaded stud,and can move on the baffle back and forth and clamp a workpiece tightly; a lower filter screen, a scrap collection groove and the sand storage tank are arranged below the work cavity; an upper filterscreen, the dust collection fan, an aluminum pipeline and a dust collection tank are arranged above the work cavity; a spray gun platform and a first screw are embedded and connected in chutes on twoside walls in the work cavity; a third slide block on the spray gun platform is connected with a second screw and a spray gun; a screw end is connected with a motor; the sand storage tank is connectedwith the spray gun through a rubber conduit; and an air source is connected to the spray gun through a control valve to control sand-blasting processing. The glass sandblasting machine has the advantages of small volume, flexible operation, convenient assembly and motion, automatic or manual fixed-point sand blasting, dust collection, grinding material recycling and high manufacturing efficiency,and is suitable to be assembled and used by medium-sized and small enterprises.