37 results about "Double rotation" patented technology

The invention relates to the technical field of spraying, in particular to power distribution cabinet surface spraying equipment which comprises a base, a six-axis mechanical arm is fixedly mounted on the upper surface of the base, a spraying gun is fixedly mounted at the end of the six-axis mechanical arm, a vertical cylinder is further fixedly mounted on the upper surface of the base, and a rotating cylinder is rotationally arranged on the outer side of the vertical cylinder; a rotating table is fixedly mounted at the top end of the rotating cylinder, first rolling wheels which are annularly distributed at equal intervals are fixedly mounted on the lower surface of the rotating table, the first rolling wheels are attached to the upper surface of the base, mounting openings which are annularly distributed at equal intervals are formed in the upper surface of the rotating table, and rotating shafts are rotatably mounted in the mounting openings; a tray is fixedly mounted at the top end of the rotating shaft, and second rolling wheels which are annularly distributed at equal intervals are fixedly mounted on the lower surface of the tray. Through double rotation of the power distribution cabinet body, no-dead-corner spraying operation is achieved, meanwhile, streamlined operation is achieved through automatic discharging operation, waiting is reduced, and the spraying efficiency is greatly improved.

The utility model relates to the technical field of food processing, in particular to a fermentation tank for lactic acid bacteria beverage production, which comprises a fermentation tank, a first motor and a second motor are mounted at the top of the fermentation tank, an output shaft of the first motor is connected with a first gear, a sleeve is rotatably connected in the fermentation tank, and the top of the sleeve penetrates through the fermentation tank and is connected with a second gear. An output shaft of the second motor is connected with a connecting rod, the sleeve is rotationally connected with a plurality of stirring shafts, bevel gear sets are arranged between the stirring shafts and the connecting rod, stirring plates are arranged on the stirring shafts, and reversing assemblies are arranged at the joints of the stirring shafts and the stirring plates and used for adjusting the rotating directions of the stirring plates. Through the cooperation of the second motor driving the connecting rod and the bevel gear set and the dual rotation design of the stirring shaft, the combination of the vertical axial rotation and the transverse axial rotation of the stirring shaft is realized, so that the generation of vortexes in the stirring process is effectively reduced, the stirring is more uniform, and the purpose of good stirring effect is achieved.

The utility model discloses an expansion bolt with a positioning mechanism, belongs to the technical field of expansion bolts, and solves the problems that a positioning groove needs to be formed in a wall mounting hole in advance in an existing device, the bolt needs to be rotated forwards and backwards twice, and use is troublesome. A bolt is arranged in the threaded sleeve in a threaded and sleeved mode, expansion pieces distributed in an annular array mode are fixedly installed at the right end of the threaded sleeve, a self-tapping screw is fixedly installed in the middle of the left end of the bolt, the bolt and the self-tapping screw penetrate through an installed object and are screwed into the threaded sleeve, then the bolt is rotated, and in the process, the expansion pieces are screwed into the threaded sleeve, and the expansion pieces are screwed into the threaded sleeve. The self-tapping screw rotates along with the bolt and is drilled into the inner wall of the mounting hole, the left end of the bolt expands the expansion piece outwards, the bolt is further limited through the self-tapping screw, the situation that the bolt falls off due to external vibration is avoided, and a mounted object can be fixed only by rotating the bolt in one direction.

The utility model relates to the technical field of flying cinemas, in particular to a double-rotating device capable of rotating by 360 degrees, which comprises an integrated control box. The device further comprises a mounting plate, a connecting back plate, a limiting safety frame, a handle, a connecting rod, a mask and a first fan. The output end above the middle of the front side of the integrated control box is connected with the mounting plate. By means of the first fan and the second fan, the somatosensory feeling of people is closer to the feeling of real wind passing through the upper vehicle surface, brand new stress analysis is conducted on the bottom plate, the protective guard is additionally arranged, the weightlessness feeling of equipment is guaranteed, meanwhile, safety protection is conducted on floor loads, and the safety of the equipment is improved. The protective module and the control module can be separated by detaching bolts for connecting the protective fence and the integrated control box through a screwdriver, and the control module and the flight module can be separated by detaching bolts for connecting the mounting plate and the back plate through the screwdriver, so that the whole equipment can be detached into three modules and is convenient to carry or maintain; and the modularization function is realized.

The present application relates to the field of bridge construction, disclose a kind of double rotation surface swivel support with self-centering function, including middle seat plate, the top of the middle seat plate is fixedly connected with steering mechanism, the top of the middle seat plate is slidably connected with support mechanism, the steering mechanism includes rotating shaft, the bottom of the rotating shaft is fixedly connected with the top of middle seat plate, the inner wall of the middle seat plate is equipped with first wear plate groove, the inner wall of the middle seat plate is equipped with first sealing groove, the bottom of the middle seat plate is fixedly connected with boss, the outer surface of the rotating shaft is rotatably connected with upper spherical hinge. Bridge swivel is rotated by spherical surface rotating friction pair, when difficult to pull and jammed due to adverse working conditions, increase the pulling force to make the conical surface rotating pair enter the rotating working state, the design of conical surface can avoid the eccentricity caused by excessive pulling force, further strengthen the safety of swivel device, conical surface rotating pair cooperates with spherical surface rotating pair to ensure the smooth construction of bridge swivel.

The utility model discloses a steel beam hoisting installation device which comprises a supporting frame, a steel beam main body and an installation assembly, the installation assembly is arranged, the height positions of a storage plate and the inner side of the supporting frame are adjusted through a lifting assembly, and a driving motor drives a double-rotation-direction screw to be matched with a sliding rod so that two sets of supporting mechanisms can conduct opposite-direction translation adjustment. The length required by the steel beam main body is adjusted; and the connecting plates are in threaded fit with the supporting rods, and the practicability of replacing different mounting plates through convenient disassembly and assembly is achieved, so that the mounting practicability of the steel beam main body is improved.

The utility model discloses a laser nozzle dismounting and mounting mechanism which comprises a mounting seat of a hollow structure, a plurality of mounting holes are formed in the outer wall of the mounting seat, a butt joint is fixedly communicated with the bottom of the mounting seat, the inner wall of the butt joint is slidably connected with a nozzle body, the outer wall of the nozzle body is fixedly connected with two arc-shaped clamping blocks, and the two arc-shaped clamping blocks are fixedly connected with the mounting seat. The outer wall of the butt joint is fixedly connected with two arc-shaped contact blocks, and the outer walls of the two arc-shaped contact blocks are fixedly connected with limiting blocks. The non-thread structural design eliminates the risk of thread solidification caused by high temperature and scale deposition, and it is ensured that the screw can still be disassembled smoothly after being used for a long time; the buckle type locking does not need to apply torque, mechanical damage is prevented, and the air leakage probability is reduced; the arc-shaped clamping blocks are matched with the limiting blocks to achieve accurate alignment, the side blocks provide double rotation limiting, and the connection stability is guaranteed; and the circular ring drives the side block to vertically move to unlock or lock the clamping block, so that the replacement process is simplified, and the maintenance efficiency is improved.

The invention relates to the technical field of air conditioners, in particular to an air guide structure with double rotating centers, an air conditioner indoor unit with the air guide structure and an air conditioner. The air guide structure comprises an air guide plate, an air inlet and an air outlet, wherein the air guide plate is rotatably arranged at the air outlet of the air conditioner indoor unit; and each driving assembly comprises a rotating arm, and the driving assemblies are configured to be used for driving the rotating arms to rotate around the first rotating center relative to a shell of the air conditioner indoor unit and driving the air guide plates to rotate around the second rotating center relative to the rotating arms so as to adjust the air supply direction of the air guide plates. According to the air guide structure, the mode of the air guide plate with double rotating centers is achieved through a simpler structure, the air supply direction of the air guide plate is flexibly adjusted, meanwhile, the problems of unstable structure and high cost caused by a complex structure are avoided, and the production cost is effectively controlled.

There is provided a solid-state nuclear magnetic resonance, NMR, probe (10). The probe (10) comprises: a cylindrical stator (103), the cylindrical stator (103) configured to receive a cylindrical sample rotor (107); a single gas input (111), configured to provide gas to the cylindrical stator (103); wherein the single gas input (111) is configured to be orientated to direct the gas along an inner surface of the cylindrical stator (103) thereby to cause a double rotation of the cylindrical sample rotor (107).

The utility model relates to the technical field of compressor accessory machining, and discloses a compressor accessory electric spark machining guide structure which comprises a mounting plate, an electrode and an adjusting plate, the front side of the mounting plate is rotationally connected with a rotating column, the front end of the rotating column is fixedly connected with a mounting base, and the left end and the right end of the front side of the mounting plate are rotationally connected with rotating shafts; an adjusting plate is fixedly connected to the outer wall of the rotating shaft, fixing plates are fixedly connected to the left end and the right end of the front side of the mounting plate, adjusting rotating bolts are connected to the sides, away from each other, of the two fixing plates in a threaded mode, and the adjacent ends of the two adjusting rotating bolts penetrate through the outer walls of the fixing plates and are rotationally connected with connecting pieces. According to the utility model, a dual-rotation mechanism is adopted between the adjusting rotating bolt and the connecting piece, the adjusting rotating bolt is rotated to push the adjusting plates on the two sides to rotate, accurate adjustment is carried out, the guiding and angle adjustment of the electrode are completed, and the machining of accessories with different asparagus angles can be realized.

The invention relates to the technical field of yoke sleeve production, and discloses a shock absorber electromagnetic valve yoke sleeve production process which comprises the following steps that S1, firstly, a plurality of bars are fixedly installed on a pickling device through a clamping and fixing assembly, the pickling device is fixed to the periphery of a lifting base, and the bars are distributed in a circumferential mode; the bars can be rapidly fixed between the fixing plate and the lifting plate through the clamping assemblies, the multiple clamping assemblies are arranged circumferentially, all the bars are evenly separated and do not make contact with each other, meanwhile, the rotary table rotates to drive all the clamping assemblies and the bars to revolve around the lifting base, and therefore the clamping assemblies can be fixed to the position between the fixing plate and the lifting plate. And in cooperation with meshing transmission of the first gear and the second gear, a single bar is driven to rotate, double rotation is achieved, it is ensured that the surfaces of the bars make contact with acid liquor, washing liquor and neutralizing liquor without dead angles by 360 degrees, and the batch treatment efficiency and the surface treatment consistency are both considered.

The invention discloses an efficient electrocatalytic oxidation device for sewage treatment, and particularly relates to the technical field of sewage treatment.The efficient electrocatalytic oxidation device is characterized in that a rotating disc rotates in a treatment box to drive a plurality of electrode sets which are annularly arranged to synchronously revolve and rotate along with the rotating disc, and meanwhile, each electrode set rotates; a disturbance-enhanced water flow environment is formed around the electrode group; the enhanced flow field can improve the mass transfer efficiency of sewage and the surfaces of the electrodes and reduce the polarization phenomenon of the electrodes, so that each electrode group is in an effective reaction state; according to the cleaning device, the self-rotating electrode sets are matched to make contact with the sliding cleaning outer ring, the electrode sets are scraped and rubbed along with movement of the rotating disc, the scraping and washing force is enhanced, oil stains, bubbles and fine impurities attached to the surfaces of the electrode sets are made to fall off more easily under the dual-rotation effect, and therefore the electrode sets are kept in the active state for a long time, and the electro-catalysis treatment efficiency is improved.

The utility model relates to the technical field of microbial agent mixing and preparing, and discloses a microbial agent mixing and preparing device for soil remediation, which comprises a support base, a second gear is mounted in the support base, a feeding pipe is mounted at the top end of a mixing cylinder, a rotating ring is fixed on one side of each support, and a rotating shaft is fixed on the other side of each support. And rotating grooves are formed in the rotating rings, rotating blocks are movably arranged in the rotating grooves, and one sides of the rotating blocks are fixed to one side of the mounting plate. According to the mixing device disclosed by the utility model, components such as the rotating ring, the rotating shaft, the first servo motor and the rotating groove are arranged, so that medicaments in the mixing cylinder are mixed through the first gear and the second gear when the mixing device is used, and meanwhile, the device is driven to rotate and work through the components; therefore, the device has a better mixing effect on the medicament under the action force of double rotation, and the mixing efficiency is greatly improved.

The utility model discloses a kind of stirring devices for food production, belong to food production technical field, including support platform, the inside rotation connection of support platform has stirring tank, the inside rotation of stirring tank is installed with stirring shaft, the side surface of stirring shaft is provided with stirring structure;The one end of stirring tank and located at the right side of support platform is provided with driving assembly, the driving assembly includes the transmission cavity of being opened in support platform right side inner wall, the inside fixed sleeve of transmission cavity is connected with bearing, the inner ring of bearing is fixedly sleeved in the right end of stirring tank, the right end of stirring tank is fixedly connected with internal gear;The utility model, stirring tank and stirring shaft double rotation can be driven by only one rotating motor, without additional power source, save equipment cost and energy consumption while substantially improving material stirring efficiency and stirring quality;While stirring tank conical inner cavity can avoid material accumulation residue at both ends of jar, improve material utilization and reduce cleaning difficulty.

The utility model discloses a double rotation support driven wheel mechanism applied to a forklift, which relates to the technical field of forklifts, and comprises a forklift body, a driving wheel set, a steering wheel set and two driven wheel sets, the driving wheel set is fixedly arranged at the right rear part of the forklift body, the steering wheel set is fixedly arranged at the left front part of the forklift body, the number of the driven wheel sets is two, and the two driven wheel sets are arranged on the forklift body. The two driven wheel sets are the first wheel set and the second wheel set, the first wheel set is arranged on the right front portion of the vehicle body, the second wheel set is arranged on the left rear portion of the vehicle body, the driven wheel set comprises a driven wheel frame, a driven wheel body, a first rotation support, a second rotation support and a connecting plate, and the driven wheel body is arranged in the driven wheel frame in a matched mode; due to the fact that the two driven wheel sets are distributed in the front-back direction and arranged in the diagonal mode, and the first rotary supports and the second rotary supports are arranged in the driven wheel sets, the stability of the forklift in the turning process is remarkably improved, the drifting phenomenon is reduced, and therefore safe carrying of goods and protection of surrounding facilities are guaranteed.

The utility model discloses a chain punching device which comprises a base and a punching part arranged on the base in a lifting mode. A rotary air cylinder is arranged on the base, and a clamp matched with a chain link plate is arranged on the rotary air cylinder. A rotating shaft fixedly matched with the clamp is arranged on the rotating cylinder; after the chain link plate is matched with the clamp, the rotating shaft is located at the midpoint of the connecting line of the hole bodies on the two sides of the chain link plate, and the punching part and the hole body on any side are in the coaxial state. The clamp achieves coaxial matching switching of the hole bodies on the two sides and the punching part through rotation of the rotating shaft. Through the linkage design of the rotary air cylinder and the clamp, one-time clamping and two-time rotary positioning of chain link plate double-hole machining are achieved, and manual intervention and positioning errors are reduced; and the elastic clamping pin is matched with the ejection assembly, so that the clamping and unloading time is remarkably shortened, and the device is suitable for batch production.

The application discloses livestock manure conveying and extracting equipment based on animal husbandry and veterinary medicine, belongs to the technical field of livestock manure conveying, and comprises a conveyor, a conveying bucket and sliding rails arranged above the conveyor, limit plates one, two and three are arranged on the side partitions of the conveyor, a rotating shaft one is rotatably connected in the conveying bucket, a fixed rod fixedly connected with the conveying bucket and a rotating shaft two rotatably connected with the conveying bucket are arranged in the rotating shaft one. While the conveying bucket conveys the manure, the shape design and double rotation of the stirring shaft can improve the stirring range and stirring efficiency, the material can be attracted to the middle part of the stirring shaft, the material fluidity is improved, the reverse rotation of the adjacent stirring shafts can make the adjacent groups of stirring rollers automatically clean the sticky material, and the conveying bucket can realize efficient and automatic crushing and mixing effect during manure conveying, and the accuracy of subsequent detection is improved.

The application relates to a rotation-preventing structure of a bearing seat of a canned pump, which comprises a bearing seat, a pump body and a fixing piece. The pump body is provided with a containing groove for limiting the position of the bearing seat on the pump body, and the fixing piece is used for axially fixing the bearing seat on the pump body. The application has the advantages that the bearing seat is locked to the pump body through screws, the rotation prevention can be guaranteed through axial compression and screw locking, the double rotation-preventing structure guarantees the reliability of the structure, the canned pump cover on the motor can be used as a thin-wall punched part in the case that the bearing seat is made of a cast steel part, and the product cost is lower.

The embodiment of the invention relates to an endoscope with a dual-rotation positioning function. The endoscope comprises a supporting main body; the output transmission part is rotatably arranged on the supporting main body; the first driving interface is arranged on the supporting main body and is in transmission connection with the output transmission part through the first transmission mechanism; the second driving interface is arranged on the supporting main body and is in transmission connection with the output transmission part through a second transmission mechanism; when the first driving interface and the second driving interface are driven at the same time, mechanical interference is generated at the output transmission part through output rotating speed difference or driving direction conflict generated by the first transmission mechanism and the second transmission mechanism at the output transmission part, and the butt joint state of the endoscope is represented through driving load change caused by the mechanical interference. Therefore, the problem that the connection state cannot be detected through rotation blocking due to the fact that an existing endoscope supporting shaft does not have rotation limiting is effectively solved. The invention further provides a surgical robot system.

This utility model relates to the field of ham processing technology, and more particularly to a multi-layer ham smoking and baking equipment. The multi-layer ham smoking and baking equipment includes a smoking barrel with a suspension structure installed inside. The suspension structure includes a mounting frame rotatably connected inside the smoking barrel. A drive motor is fixedly installed on the top of the smoking barrel, and the output end of the drive motor is fixedly connected to the top of the mounting frame. Multiple vertically distributed fixing rings are fixedly installed on the mounting frame, and multiple annularly distributed gears are rotatably connected to each fixing ring. A hook is fixedly installed at the lower end of each gear. A drive disc for rotating the gears is installed inside the smoking barrel. A smoke conveying structure is also installed on one side of the smoking barrel. This utility model allows for multi-layer suspension of ham, increasing the throughput of a single smoking cycle. The central annular exhaust, combined with the double rotation of the ham, enables comprehensive smoking of the ham, improving the smoking quality.

The invention provides a gas turbine overhauling tool which comprises a fixed disc, an operation cylinder is concentrically and rotationally inserted into the fixed disc, an operation rod is concentrically inserted into the operation cylinder, a movable disc rotating and moving synchronously with the operation rod is arranged at one end of the operation rod, and a plurality of insertion pieces are contained in the side, facing the fixed disc, of the movable disc at equal intervals in the circumferential direction of the fixed disc. The operation rod is driven to rotate in the first direction relative to the operation cylinder, so that the insertion pieces can centrifugally move on the fixed disc so as to protrude out of the fixed disc. The operation cylinder is driven to rotate in the second direction relative to the operation rod, so that the operation rod drives the movable disc and the insertion piece to move away from the fixed disc in the axial direction of the operation rod. The tool is inserted from the head of the cross flame tube and moved to the position of a gap between the cross flame tube and a flame tube, the gap between the cross flame tube and the flame tube can be conveniently, efficiently and sequentially jacked tightly and the flame tube can be stably disassembled from the tail of the cross flame tube only by rotating the head of the cross flame tube twice, and the operation efficiency is high.

The application relates to the technical field of bearing production, in particular to a bearing ring cleaning device for bearing production and a method thereof, which comprises a cleaning water receiving pool, the top of the cleaning water receiving pool is fixedly connected with a cleaning table, and the outer wall of the cleaning table is provided with a cleaning mechanism. The cleaning water receiving pool, the cleaning table and the cleaning mechanism are arranged, an efficient, comprehensive and automatic cleaning process of the bearing ring for bearing production is realized, the unique structural design enables the bearings to rotate as a whole and also enables each bearing to rotate on the fixing assembly during the cleaning process, the double rotation mechanism ensures that each part of the bearing can be uniformly and thoroughly cleaned, meanwhile, the cooperation of the vertical rotating disc and the water spraying head in the cleaning mechanism enables the cleaning water to be sprayed on the bearings in a multi-angle and dead-angle-free mode, the cleaning effect is further improved, and the application also has the function of adjusting the cleaning parameters according to the dirt degree of the bearings.

The invention relates to a hybrid air engine with a combined cycle comprising an in-line or V-type multi-cylinder block, wherein several cylinders operate in a two-stroke compression cycle requiring one 360º revolution of the crankshaft to be completed, and several cylinders operate in a four-stroke internal combustion cycle requiring two 720º revolutions of the crankshaft to be completed.

The invention relates to the technical field of bearing production, in particular to a bearing ring cleaning device for bearing production and a method thereof.The bearing ring cleaning device comprises a cleaning water receiving pool, a cleaning table is fixedly connected to the top of the cleaning water receiving pool, and a cleaning mechanism is arranged on the outer wall of the cleaning table. According to the bearing ring cleaning device, the efficient, comprehensive and automatic cleaning process of bearing rings for bearing production is achieved, through the unique structural design, overall rotation of bearings can be achieved in the cleaning process, it can be guaranteed that each bearing rotates on the fixing assembly, and the cleaning efficiency is improved. The double rotating mechanism ensures that each part of the bearing can be uniformly and thoroughly cleaned, meanwhile, a vertical rotating disc and a water spraying head in the cleaning mechanism are matched for use, so that cleaning water can be sprayed on the bearing in a multi-angle and dead-corner-free manner, the cleaning effect is further improved, and in addition, the cleaning efficiency is improved. The device also has the function of adjusting cleaning parameters according to the dirt degree of the bearing.

The utility model discloses riding type amusement equipment, which belongs to the technical field of amusement equipment and particularly comprises a base, a middle rotary drum is rotatably connected above the base, a plurality of large arms are circumferentially distributed on the side wall of the middle rotary drum, and the other ends of the large arms are connected with a cabin mechanism; the cabin mechanism comprises a rotary upper plate, an upper middle barrel and cabin frames, the rotary upper plate is rotationally connected to the large arm, the upper middle barrel is fixedly connected to the rotary upper plate, and the cabin frames are circumferentially distributed on the rotary upper plate; the cabin fluctuating mechanism comprises a guide rail column, a lifting frame and an autorotation frame; by means of the middle rotating cylinder, the large arm, the rotary upper plate and the upper middle barrel, the cockpit frame can rotate in a double-rotating mode, the cockpit frame can do regular fluctuating motion, and the amusement experience of tourists is improved.

The invention discloses a double-beam crane with a lifting hook locking function, and particularly relates to the technical field of cranes, the double-beam crane comprises two cross beams which are symmetrically distributed front and back, the upper ends of the two cross beams are fixedly connected with first guide rails, and the left ends and the right ends of the two first guide rails are fixedly provided with first limiting switches used for limiting the moving range; the upper ends of the two first guide rails are jointly provided with a driving mechanism, the upper end of the driving mechanism is fixedly provided with a lifting structure, the left side and the right side of the cross beam are symmetrically provided with longitudinal guide structures for guiding the moving track of the cross beam, and the lower end of the lifting structure is provided with a hoisting structure for hoisting materials. According to the double-beam crane with the lifting hook locking function, double rotating locking of the lifting hook is achieved through cooperation of the locking assembly and the hook head, anti-disengaging protection of the sling is achieved through the spring pressing plate, the running stability of equipment and the safety of hoisting operation are effectively improved, loads are dispersed, part abrasion is reduced, and the overall service life of the equipment is prolonged.

The invention discloses an ultraviolet disinfection device for a medical appliance, and belongs to the technical field of medical appliance disinfection. The medical appliance synchronously does circular motion around a hollow stand column, and in the rotating process of a fixing frame, a second bevel gear drives a top plate, a clamping seat, a limiting block, a stand rod and the medical appliance to do autorotation motion; omni-directional exposure of medical instruments is achieved through double rotation, disinfection dead corners are avoided, the ultraviolet disinfection lamp can be driven by the guide block to deflect around the rotating shaft when the rotating shaft rotates, the ultraviolet disinfection lamp swings 360 degrees along the pin shaft through cooperation of the connecting rod and the deflection frame, the ultraviolet disinfection lamp emits ultraviolet light after being powered on, and disinfection is achieved. All areas in the disinfection box are covered through multi-dimensional movement, the surfaces of the instruments are subjected to dead-angle-free ultraviolet irradiation disinfection in cooperation with double rotation of the medical instruments, the traditional fixed layout adopting a single ultraviolet light source is abandoned, and the disinfection effect is improved.

The utility model discloses a sand blasting clamp for machining relates to sand blasting auxiliary equipment technical field. The clamp includes rotatable base and rotatable clamping device on base, and clamping device contains rotating frame, clamping arm, chuck and drive arrangement. Drive arrangement can drive clamping arm movement to clamp work piece, and the rotation structure of rotating frame and base can realize work piece multi -angle sand blasting. The utility model discloses through the collaborative setting of multiple clamping devices, can carry out stable clamping to multiple work pieces simultaneously, and combines the double rotation function of base and rotating frame, can flexibly adjust the sand blasting angle and position of work piece, has improved the efficiency and uniformity of sand blasting processing significantly. Its compact and reasonable structure design, convenient operation is applicable to the sand blasting treatment of multiple specifications work pieces, has outstanding practicality and popularization value.