434 results about "Metal dust" patented technology

The invention belongs to the technical field of other metal machining machinery manufacturing, and particularly relates to pipeline inner wall grinding equipment which comprises a machine body, a first guide rail is fixedly connected to the upper surface of the machine body, a first guide groove is formed in the first guide rail, and two sliding tables are slidably connected into the first guide groove; a storage box is fixedly connected to the upper surface of one sliding table, a first hydraulic cylinder is fixedly connected to one side of the storage box, a grinding wheel is arranged at the output end of the first hydraulic cylinder, a positioning table is fixedly connected to the upper surface of the other sliding table, and a limiting ring and a limiting plate are fixedly connected to one side of the positioning table. A limiting groove is formed between the limiting plate and the limiting ring, a grinding assembly is arranged on one side of the first hydraulic cylinder and comprises a motor fixedly connected to the output end of the first hydraulic cylinder, and a positioning disc is fixedly connected to one side of the motor. The problem that metal dust generated during grinding is accumulated on the inner wall of the pipeline, and the pipeline grinding quality is affected is solved.

The invention relates to a negative pressure dust collection type cutting machine, and belongs to the technical field of cutting machines, the negative pressure dust collection type cutting machine comprises a cutting machine workbench, a cutting module, a negative pressure dust collection module, an explosion-proof filtering system and a control system, the cutting module comprises a three-dimensional five-axis cutting mechanism and a high-power laser cutting head, and the high-power laser cutting head is loaded at the driving end of the three-dimensional five-axis cutting mechanism. The dust collector has an anti-explosion effect and an environment-friendly discharge function, and is provided with an anti-static pipeline, an inert gas injection device and a spark catcher aiming at flammable metal dust, so that the explosion risk can be remarkably reduced, multi-stage filtration is carried out by adopting the sintered metal filter cartridge, the HEPA filter screen and the like, discharged air meets the environment-friendly standard, the sewage problem of traditional wet dust collection is avoided, and the dust collector is suitable for popularization and application. And the metal plate is fixed through the evenly-distributed adsorption holes, plate deviation caused by vibration or scrap accumulation in the cutting process is prevented, and the precision of the cutting path is improved.

The invention provides a robot obstacle detection method and system in a smart factory environment, and relates to the technical field of obstacles, and the method comprises the steps: determining a strong light region and a high temperature region of a factory according to illumination intensity data and temperature distribution data; taking an overlapped area of the strong light area and the high temperature area as a sensing blind area, and taking the rest area as a non-sensing blind area; according to the metal dust concentration data, the sensing ability grade of each robot is evaluated, and the robot with the sensing ability grade larger than a preset grade and located in the non-sensing blind area serves as a collaborative robot; determining the position and the motion state of an obstacle in the sensing blind area by combining the environment data sent by the cooperative robot and the robot for sensing the blind area; and according to the position and the motion state of the obstacle, constructing an obstacle avoidance map, and according to the obstacle avoidance map, planning an obstacle avoidance path for the cargo robot to pass through the sensing blind area. The robot has the technical effects that the position of the obstacle is accurately detected, and the collision risk of the robot is reduced.

The invention discloses a metal dust risk dynamic assessment and grading early warning method based on the Internet of Things, and particularly relates to the technical field of metal dust monitoring. Multi-type sensor nodes are deployed on an industrial site, metal dust concentration, environmental parameters and equipment state information are collected, after edge calculation preprocessing, dust particle dynamic behavior characteristics and high-frequency signal abnormal characteristics are extracted, and the dust particle dynamic behavior characteristics and the high-frequency signal abnormal characteristics are calculated based on the change trend and the coupling relation. A judgment model is constructed to recognize the reliability state of the sensor under different interference working conditions in real time, when it is detected that the sensor has a potential misalignment risk, the system can automatically conduct data correction or redundant path switching and dynamically update an early warning result, and the method effectively improves the dust monitoring stability and early warning accuracy under the complex working conditions and improves the safety of dust monitoring. And the identification and prevention capability of the system on the silent potential safety hazard is obviously enhanced.

The invention discloses an accessory welding device for water pump production, and particularly relates to the field of water pump welding, the accessory welding device comprises a working box, an equipment cavity is formed in the upper end of the working box, and a panel is fixedly mounted on the upper portion of the inner wall of the equipment cavity. According to the accessory welding device for water pump production, the dust suction assembly is arranged, welding fume and metal dust generated in the welding process can be captured in real time by arranging a plurality of circumferentially-distributed air suction funnels and an air pump, the welding fume enters a dust collection cavity through a first connecting pipe, and after the welding fume is filtered through a filter screen, the dust is collected; purified air is discharged through the air outlet pipe, so that pollution of welding fume to the working environment is effectively avoided, and the health of operators is protected; the discharging hole channel is periodically opened and closed through the dust collecting device, directional flowing of dust is achieved, meanwhile, the second scraper rotates on the conical block, the dust in the dust collecting cavity is scraped into the second collecting cavity and finally falls into the dust collecting box, dust accumulation is avoided, and long-term stable operation of equipment is guaranteed.

The invention discloses a system and a method for detecting metal dust in GIS (gas insulated switchgear) equipment, and belongs to the field of GIS equipment detection.The system comprises a light intensity sensor, a photon counting probe, a high-voltage power supply measuring end and an industrial personal computer, the light intensity sensor is used for collecting a light intensity signal generated in the movement process of metal dust in the GIS equipment, and the industrial personal computer outputs a PRPD atlas based on the collected light intensity signal after receiving a trigger signal; the photon counting probe is connected with the industrial personal computer through the counting plate, the photon counting probe is used for collecting photons generated in the movement process of the metal dust in the GIS equipment, and the industrial personal computer outputs a PRPC atlas based on collected photon signals after receiving the trigger signals. By adopting the detection system and the detection method for the metal dust in the GIS equipment, the metal dust in the GIS equipment can be detected in real time, and engineers are helped to evaluate the insulation state of the equipment and predict potential fault risks.

The invention relates to the technical field of laser cutting, and discloses a door and window manufacturing laser cutting device which comprises a bottom plate, the top of the bottom plate is fixedly connected with a sliding cavity, a clamping mechanism comprises a clamping box, the clamping box is slidably connected with the inner wall of the sliding cavity through a sliding block, and the two sides of the clamping box are fixedly connected with movable cavities. A resistance assembly is arranged on the inner wall of the movable cavity, the inner wall of the clamping box is fixedly connected with a covering film, the inner wall of the covering film is fixedly connected with an absorption pipe, the absorption pipe is fixedly connected with the inner wall of the clamping box, and the surface of the clamping box is fixedly connected with a dust removal ring. Through the arrangement of the clamping mechanism, a part of metal dust can enter an absorbing pipe through an absorbing groove in the surface of a covering film, activated carbon is installed in the absorbing pipe, the metal dust can be absorbed into the absorbing pipe through the absorbing pipe, and the metal dust splashed to the outer side during laser cutting of doors and windows is absorbed; therefore, metal dust is prevented from adhering to the outer sides of doors and windows.

The flange plate machining equipment comprises a machine box, a workbench is fixedly connected to the top end of the machine box, and a grinding mechanism is arranged under the top end of the workbench; the grinding table is rotationally arranged in the middle of the workbench, and a bidirectional clamping mechanism is arranged on the grinding table; the air pump is fixedly mounted on the inner bottom wall of the case, and a rotary air supply mechanism is arranged between the air pump and the bidirectional clamping mechanism; and the gear ring is fixedly connected to the outer side of the bottom end of the grinding table, and a rotating mechanism matched with the gear ring is arranged below the left side of the workbench. Through cooperative use of the negative pressure pump, the filter box and the airflow circulation system in the case, integrated treatment of metal dust collection and equipment heat dissipation is achieved, and the technical effects of simplifying the equipment structure and improving the heat dissipation efficiency are achieved.

The invention relates to the technical field of non-ferrous metal dust treatment, and provides a pneumatic cyclone tower for explosive aluminum magnesium dust treatment and a dust removal method of the pneumatic cyclone tower. The spraying tower is fixedly mounted at the top of the base, and the inner wall of the center of the spraying tower is rotationally connected with a long rod; the windmill blades are fixedly mounted at the top end of the long rod, and a water sprayer is fixedly mounted on the inner wall of the spray tower. The motor drives the long rod to drive the windmill blades to rotate, the windmill blades are matched with the water sprayer to form spiral rotating airflow, and the collision fusion efficiency of dust and liquid drops is improved; the long rod synchronously drives the scraping plate to scrape dust accumulated on the tower wall, multi-stage filtration is achieved in cooperation with the filter screen, and waste water is recycled through the water return pipeline. The scheme solves the problems that existing equipment is low in dust removal efficiency and difficult to clean, and has the advantages of being efficient, low in energy consumption and easy to maintain.

The utility model belongs to the technical field of metal table production, and discloses punching equipment for metal table production. The drilling device comprises a workbench, a through hole is formed in the top of the workbench in a penetrating mode, a mounting frame is arranged at the top of the workbench, a drilling assembly used for drilling a metal plate is arranged on the mounting frame, and a dust suction assembly used for sucking and removing metal chippings generated in the drilling process is arranged on the workbench. The mounting frame is further provided with an air cylinder used for driving the punching assembly to move in the vertical direction, the workbench is provided with a clamping assembly used for clamping the metal table plate to be punched, a worker starts the dust collection assembly, metal dust generated in the metal table plate punching process can be collected, and the metal table plate can be conveniently punched. And the probability that metal dust flows along with air and scatters around is reduced, and then the cleanliness of the table top of the working table is improved.

The invention discloses a high-precision polishing and grinding device for machining a valve element of a stop valve, and belongs to the technical field of valve element polishing machining. The high-precision polishing and grinding device comprises an equipment base placed in a workshop, a polishing motor is installed on the outer side of the equipment base through a frame body in a lifting mode, and a polishing head is fixedly installed at the output end of the polishing motor; a polishing seat is further fixedly mounted above the equipment base, a center shaft is rotatably mounted on the inner side of the upper portion of the polishing seat, the center shaft is in transmission connection with a polishing head through a linkage transmission assembly, and side shafts rotatably connected with the polishing seat are evenly arranged on the outer side of the center shaft. The center shaft and the side shafts are in transmission connection through transmission gear sets, and clamping and positioning assemblies are arranged at the tops of the side shafts. According to the high-precision polishing and grinding device for machining the valve element of the stop valve, synchronous and automatic positioning and polishing of the valve element at multiple stations can be achieved, the polishing efficiency is high, and polishing liquid and metal dust can be efficiently treated and recycled in the polishing process.

The invention discloses multi-axis linkage grinding equipment for cast iron cooker machining, and relates to the technical field of cooker grinding, and the multi-axis linkage grinding equipment comprises an equipment main body, a grinding head and a rotating disc; an extension frame is mounted on the outer wall of the grinding head, a mounting frame is mounted on the extension frame, and a high-pressure spray gun is rotationally mounted on the mounting frame. The high-pressure spray gun is obliquely aligned to the contact point of the grinding head and the cast iron pan, when the high-pressure spray gun transversely moves along with the grinding head, the transmission wheel and the friction wheel are matched to drive the push plate mechanism, the spray gun swings in a reciprocating mode to expand the air injection range, metal dust and abrasive belt chippings are accurately blown away, dust attachment is avoided, the grinding precision is prevented from being affected, meanwhile, the abrasive belt is cooled, and the service life of the abrasive belt is prolonged; meanwhile, the dust collecting cover covers a polishing area through an avoiding groove, dust overflowing is reduced through a rubber dust blocking curtain, a dust suction groove and an exhaust fan are in linkage for air suction, and suspended dust is rapidly sucked away; the supporting frame and the polishing track are staggered, it is guaranteed that dust collection does not interfere with multi-axis linkage polishing, the dust concentration of a workshop is greatly reduced, and the health of operators is protected.

The application belongs to the technical field of other metal processing machinery manufacturing, in particular to a pipeline inner wall polishing equipment. The upper surface of the machine body is fixedly connected with a first guide rail. A first guide groove is arranged in the first guide rail. Two sliding tables are slidably connected in the first guide groove. The upper surface of one of the sliding tables is fixedly connected with a storage box. One side of the storage box is fixedly connected with a first hydraulic cylinder. The output end of the first hydraulic cylinder is provided with a polishing wheel. The upper surface of the other sliding table is fixedly connected with a positioning table. One side of the positioning table is fixedly connected with a limiting ring and a limiting plate. A limiting groove is arranged between the limiting plate and the limiting ring. One side of the first hydraulic cylinder is provided with a polishing assembly. The polishing assembly comprises a motor fixedly connected with the output end of the first hydraulic cylinder. One side of the motor is fixedly connected with a positioning disc. The pre-treatment assembly and the adsorption roller are arranged to solve the problem that the metal dust generated by polishing is accumulated on the inner wall of the pipeline, affecting the polishing quality of the pipeline.

The invention discloses a metal dust processing cyclone type wet dust collector and an intelligent control system thereof. The cyclone type wet dust collector for metal dust processing comprises a box body, a multi-stage filtering device, a dust recovery device and an intelligent control device, the box body is provided with an exhaust inlet and an air outlet; a multi-stage filtering device is arranged in the box body and comprises a water curtain filtering area, a spraying pressing area and a water mist separation area which are arranged in sequence; the dust recovery device comprises a sewage treatment tank and an air locking and dust discharging device which are arranged at the bottom of the box body; the intelligent control device is used for monitoring water level, water flow, water pressure, temperature and air pressure difference parameters and automatically controlling the operation state of the system according to monitoring results. The intelligent control system is applied to the dust remover. The dust removal device has the following beneficial effects that through multi-stage filtration and intelligent control, the problems of low efficiency, poor safety, difficulty in maintenance and low automation degree when existing dust removal equipment is used for treating sand blasting and shot blasting dust are solved.

The invention discloses a metal dust explosion risk comprehensive index early warning method and system, and particularly relates to the technical field of metal dust. The method comprises the following steps: standardizing real-time dust environment data collected in a working site and standard dust data, generating a feature vector, calculating similarity, and identifying a potential abnormal state; processing temperature deviation characteristics and charge concentration fluctuation characteristics are further extracted, a multi-dimensional risk assessment model is constructed, a metal dust explosion risk comprehensive index is calculated by using a polynomial regression algorithm and is compared with a gradient risk threshold value, and multi-stage early warning signal triggering and linkage response control are realized; the method has a self-adaptive recognition capability on a novel or unknown dust state, the accuracy and response timeliness of risk early warning are remarkably improved, and the intrinsic safety guarantee capability of the system under a complex working condition is enhanced.

The invention provides a fusion reactor tungsten-based dust electron beam melting tritium removal and solidification recovery system, and particularly discloses a metal dust recovery system which comprises a fusion reactor main machine vacuum chamber and a dust collecting and feeding unit, the dust collecting and feeding unit is connected with the fusion reactor main machine vacuum chamber, and the fusion reactor main machine vacuum chamber is connected with the fusion reactor main machine vacuum chamber. The dust collecting and feeding unit is connected with the fusion reactor main machine vacuum chamber and used for collecting dust generated by the fusion reactor main machine vacuum chamber, the high-temperature deuterium removal smelting treatment unit is connected with the dust collecting and feeding unit and used for treating the dust collected by the dust collecting and feeding unit, and the solid ingot block transferring and storing unit is connected with the high-temperature deuterium removal smelting treatment unit. And the solid ingot transferring and storing unit is connected with the high-temperature deuterium removal smelting treatment unit and used for transferring and / or storing the dust treated by the high-temperature deuterium removal smelting treatment unit, and the metal dust recycling system is efficient and safe.

The invention relates to the technical field of aluminum alloy shell production, and discloses a grinding machine for high-voltage electric appliance corrosion-resistant aluminum alloy shell production, the grinding machine adopts a double-turntable working driving mode, the device can complete grinding machining of various working surfaces on the upper portion of a workpiece through cooperation of double turntables, a dust collection elbow adopts a side face arrangement mode, and the dust collection elbow is arranged on the side face. According to the metal dust cleaning device, the work of a polishing head cannot be affected, the metal dust suction and collection work can be efficiently completed through vacuum suction, the dust cleaning treatment convenience can be effectively improved through cooperation with a split installation type dust collection net cover, a dust suction bent pipe adopts an adjustable installation mode, fixed-axis sliding installation is conducted through a guide groove and an installation cylinder base, and the dust suction efficiency is improved. By means of threaded connection fit between the adjusting thread and the adjusting knob, the mounting height of the end opening of the dust collection elbow can be flexibly adjusted by screwing the adjusting knob, the dust collection elbow can be prevented from colliding with a workpiece during deep hole polishing, the dust collection elbow can be located at the optimal dust collection position, and the dust collection efficiency of the device can be improved.

The utility model relates to the technical field of elastic grinding heads, and discloses an elastic grinding head which comprises a bottom plate, a robot connecting flange is fixedly installed on the outer wall of the bottom plate, a driving motor is fixedly installed on the top of the bottom plate, a driving shaft is fixedly installed at the output end of the driving motor, and the robot connecting flange is fixedly installed on the driving shaft. A driving wheel is fixedly installed on the outer wall of the driving shaft, a first elastic air cylinder is fixedly installed at the bottom of the bottom plate, the piston end of the first elastic air cylinder is rotationally connected with a grinding wheel, and a tensioning air cylinder is fixedly installed at the bottom of the bottom plate. Meanwhile, a connecting frame, a sliding rod and a connecting rod are matched to drive a brush to be attached to the surfaces of the abrasive belt, the cloth wheel and the fiber wheel to move up and down in a reciprocating mode, metal dust on the surfaces of the abrasive belt, the cloth wheel and the fiber wheel can be cleaned through the brush at the moment, and the abrasive belt, the cloth wheel and the fiber wheel can better polish workpieces.

The invention discloses environment-friendly purifying and filtering equipment for treating metal processing dust, and relates to the technical field of metal dust filtering, the environment-friendly purifying and filtering equipment comprises a bracket, two groups of filtering boxes are mounted on the bracket, the two groups of filtering boxes are symmetrically distributed front and back, an inlet pipe is mounted on the left side of each filtering box, and a linear motion module is mounted between the upper parts of the left sides of the two groups of filtering boxes; the output end of the linear motion module is provided with a switching assembly, and the output end of the switching assembly is provided with a switching pipe. A plurality of flow guide plates are mounted in the filter boxes, a group of cleaning components are mounted on each flow guide plate, and a working state switcher is mounted between the two filter boxes; a spraying assembly is installed in the middle of the upper end of the filter box. According to the environment-friendly purifying and filtering equipment for treating the metal processing dust, by arranging the two sets of filtering boxes, when one filtering box is in a dust filtering state, the other filtering box can be self-cleaned through the cleaning assembly, continuous operation of the equipment is guaranteed, the work stagnation time is shortened, and the use efficiency of the equipment is improved.

The utility model relates to the technical field of pipe cutting machines, and discloses a pipe cutting machine which comprises a horizontal underframe, a fixed chuck assembly and a portal frame which are arranged at the top of the front end of the horizontal underframe, a laser cutting assembly which is arranged on the portal frame and can move along the X axis and the Z axis, and a movable chuck assembly which can be arranged on the horizontal underframe in a front-back sliding mode. A butt clamp supporting mechanism and a variable-diameter wheel supporting mechanism are arranged on the horizontal type bottom frame, a vertical plate located below the fixed chuck assembly is arranged at the front end of the horizontal type bottom frame, and an air draft dust removal opening is formed in the vertical plate and connected with a dust collector. According to the pipe cutting machine, the air draft dust removal opening formed in the front end of the horizontal type bottom frame is connected with the dust collector, metal dust generated in the laser cutting process can be effectively collected and treated, the dust concentration in a workshop is remarkably reduced, the working environment of workers is improved, and the health risk is reduced.

The utility model provides a filter element cleaning device for a centralized dust remover, and relates to the technical field of centralized dust removers. The dust collector comprises a dust collecting barrel, a rotating unit, a negative pressure unit, a cleaning unit and a base, the dust collecting barrel is connected with the base, the rotating unit is rotationally connected with the base, and a filter element is detachably connected to the top of the rotating unit and located in the dust collecting barrel; the cleaning unit can extend into the dust collecting barrel and enter the annular barrel of the filter element, and the negative pressure unit is communicated with the dust collecting barrel. The cleaning unit can blow out metal dust attached to the filter element, the filter element is driven by the rotating unit to rotate, the cleaning effect is effectively improved, the negative pressure unit can form negative pressure, so that the metal dust can fall to the bottom of the dust collecting barrel, the dust collecting barrel can temporarily form a relatively sealed space, and the dust collecting barrel is prevented from falling off. And metal dust is collected, the surrounding environment is protected, and the body health of operators is guaranteed.

The utility model discloses a safe explosive metal dust collecting device for machining, which comprises a collecting box and a connecting pipe connected to one side of the collecting box, a mesh enclosure assembly is arranged on the collecting box, and the mesh enclosure assembly comprises a filter mesh enclosure, a fixing frame, a top groove, a top box, a fixing handle, an air pump and a limiting clamping block; through the designed mesh enclosure assembly, dust can be intercepted and automatically cleaned, a filter mesh enclosure in the mesh enclosure assembly can intercept and filter the dust, an air pump is periodically started by personnel to drive a fixing handle and the filter mesh enclosure to ascend and descend, and when the filter mesh enclosure moves, the dust can be automatically cleaned. According to the dust removal device, the limiting clamping blocks between the filter screen cover and the fixing frame can be mutually staggered and extruded, so that the filter screen cover is vibrated, dust on the surface of the filter screen cover can be vibrated down through vibration, the dust removal purpose is achieved, and through the design, the dust removal convenience is improved, and convenience is provided for personnel.

The invention discloses a negative pressure collection and explosion-proof safety treatment system for metal dust in an electromagnet manufacturing process, which comprises a dust negative pressure collection unit, a ferromagnetic dust separation unit, a multi-stage filtration explosion-proof unit, a dust recovery unit and an intelligent control unit which are sequentially connected through corrosion-resistant metal pipelines, the dust negative-pressure collecting unit comprises a customized air suction cover, an embedded ground air suction opening and a movable negative-pressure dust suction gun; the ferromagnetic dust separation unit comprises an electromagnetic separation barrel, and a spiral flow guide channel is arranged in the barrel and is matched with a compressed air back flushing device; the multi-stage filtering explosion-proof unit comprises a first-stage cyclone separator and a second-stage HEPA efficient filter, an explosion-proof and explosion-proof layer is arranged on the outer side of the multi-stage filtering explosion-proof unit, and the multi-stage filtering explosion-proof unit is provided with a spark The intelligent control unit adopts a PLC control system, is connected with a dust concentration sensor, a temperature sensor and a pressure sensor, and supports remote monitoring and fault diagnosis. By means of the system, zero explosion risk, low emission and resource recycling of electromagnet manufacturing process dust are achieved.

The invention relates to a linear walking direction stacking deviation rectifying device and a method thereof, and belongs to the technical field of logistics storage equipment.The method comprises the steps that S1, a stacking machine walking system is arranged; s2, constructing a contact stress characteristic value when the guide wheel is pressed; s3, executing dead zone judgment based on a steady-state interval; and S4, performing active deviation correction through cooperation of the execution force and the displacement. By arranging the floating type main wheel deflection base and the micro-deflection driving mechanism, a traditional rigid connection mode is changed, when it is detected that the vehicle body deviates, the main walking wheels are driven to generate a micro yaw angle, the vehicle body is pushed back to the center of a rail through transverse component force generated by kinetic energy generated by advancing of the stacking machine, and the vehicle body is driven to move forwards. In this way, violent extrusion between the guide wheel and the rail is avoided, generation of metal dust and operation noise are effectively reduced, and the service life of the guide wheel is prolonged.

1. The name of this design product: Transport trolley (magnetic removal type). 2. Purpose of this product: This product is used to transport materials in the oven and to absorb metal dust. 3. The key point of the design of this product lies in the shape of the product. 4. The picture or photo that best illustrates the design points: Stereoscopic drawing 1.

A system and method using remote sensing instrument with hyper spectrum quantitatively measure metal dust elements in lubricating oil, which includes (not limited): Al, Cd, Cr, Cu, Fe, Pb, Mg, Mn, Mo, Ni, Ag, Sn, Ti, V, Zn, B (Boron, for Coolant), Ca (Calcium for water contaminant), and particle size, cone penetration, dropping point, steel mesh oil separation, moisture, PQ concentration, in few seconds. The instrument integrates near-field communication (NFC), Internet of Thing (IoT), Cloud computing, spectral matching and other data processing, and application software forming a system to easily operated and build a model enable self-learning to improve precision through collection accumulation. With the system, the instrument as FIG. 1 can provide comprehensive on-site analysis enable preventive maintenance of mission critical engine and rotating equipment. The characteristics of the system are easy to operate, get result quickly, and self-learning to improve precision.

A flexible automatic drilling device for structural parts comprises a machine body, a workbench is fixedly connected to the top wall of the machine body, a fixing base and a fixing plate are fixedly connected to the two sides of the upper side wall of the workbench respectively, a plurality of cavities distributed in an equidistant array mode are formed in the fixing base, and pistons are arranged in the cavities. Compared with the prior art, the device has the advantages that through cooperation of the propelling assembly, the cavity, the piston, the push rod, the clamping plate and the pressure sensor, the device can fix a structural part with the two regular side edges and can also fix a structural part with the two irregular side edges, the applicability is higher, and the practicability is high. And due to the arrangement of the dust removal assembly, generated metal dust can be sucked into the box body in the drilling process, the problems that the metal dust is spread on the workbench and is inconvenient to clean are solved, harm to the body health of workers can be prevented, and the drilling machine is safer and more practical.

The invention relates to a method and a system for testing explosion characteristics of metal dust in an SF6 gas environment. The system comprises the following steps: acquiring a metal dust sample with preset mass; plate electrodes are arranged at the top and the bottom in a gas insulation test cavity respectively, and the metal dust sample is flatly laid on the plate electrode at the bottom of the gas insulation test cavity; the gas insulation test cavity is vacuumized and then filled with SF6 insulation gas; voltage is applied to the plate electrode in a preset mode, so that a controllable electric field is formed in a dust space concentration area, and a physical signal representing discharge is synchronously monitored; and iterating the process by increasing the mass of the metal dust sample until a physical signal indicating explosion or breakdown is monitored, stopping iteration, and recording the current voltage value and the corresponding concentration of the metal dust sample to obtain the explosion triggering critical condition of the metal dust in the insulating gas environment.

The utility model discloses a pressure vessel welding device with a positioning structure, which relates to the technical field of welding devices and comprises a welding device body and a support plate, the bottom of the welding device body is movably mounted with the top of the support plate, and the top of the support plate is fixedly connected with a support adjusting component. The rear side of the top of the supporting plate is fixedly connected with a ventilation collecting assembly. The supporting and adjusting assembly is matched with the ventilation and collection assembly to stably and conveniently suck and collect metal dust generated by machining of the welding device body, and the problems that an existing welding device is not provided with a smoke removal device in the using process, so that the metal dust generated in the using process of the welding device is prone to being sucked by workers; the welding device solves the problems that when the welding device is used, the body health of workers is affected, the working efficiency of the workers is reduced, inconvenience is caused in use, and the use effect of the welding device is reduced, and the ventilation and filtering effects are achieved.

The utility model relates to the technical field of filtering, in particular to a metal micro-dust capturing filter which comprises a base, a dust suction box is arranged on one side of the base, a driving motor is arranged on the other side of the base, and a metal adsorption wheel structure is installed between the dust suction box and the driving motor. The metal adsorption wheel structure comprises a first rotating wheel, a second rotating wheel, an air inlet blocking tile, a metal tiny dust capturing brush and a metal tiny dust poking rod. According to the utility model, the battery diaphragm penetrating through the electrostatic adsorption wheel structure can be cleaned and adsorbed in a double-sided roller manner through the electrostatic adsorption wheel structure, so that the adsorption wheel can be better attached to the battery diaphragm for electrostatic adsorption of metal dust, and meanwhile, the metal dust which is electrostatically adsorbed to the adsorption wheel can be completely adsorbed at any time through the dust collection box; therefore, metal dust on the surface of the battery diaphragm can be thoroughly adsorbed, and the dust removal efficiency of the surface of the battery diaphragm is high.