147results about How to "Great practicability" patented technology

The invention relates to a single cell capturing method, which comprises the following steps that a single cell to be captured is injected into a micro-fluidic chip containing a micropore coupling micro-cavity through fluid, the chip comprises a base material and a main channel arranged on the base material, the surface of the main channel is provided with a plurality of micropores and micro-cavities corresponding to the micropores, and the micro-cavities are communicated with the main channel; after the main channel is filled with the fluid, the fluid in the main channel is kept static, so that the single cells fall into the micropores under the action of gravity; after the single cells are captured by the micropores, the fluid is introduced again to discharge the uncaptured single cells; and the chip is overturned and inclined after being discharged, so that the single cells enter the micro-cavity. The technical problems that in the prior art, single cell capture efficiency is low, capture precision is insufficient, complex external equipment is needed for control, and single cell capture, culture and the like cannot be completed in the same chip are solved.

A single-antenna dynamic initialization method applied to INS / GPS integrated navigation comprises the steps that when the vehicle speed is larger than 20 km / h and GPS signals are good, the course angle and the pitch angle calculated through the GPS northeast speed serve as attitude information of dynamic initialization to be used for updating an attitude matrix, appropriate observed quantities are established for Kalman filtering fusion, and the attitude matrix is calculated through the dynamic initialization. And the error of the inertial navigation system is estimated and corrected on line, so that the precision of integrated navigation is improved. The method can be applied to a single-antenna GPS / SINS inertial integrated navigation initial alignment scheme, the algorithm is easy to implement and operate, the required dynamic initialization condition is easy to meet, the method has wide practicability, and through actual sports car test verification, when the vehicle speed is larger than 20 km / h, the track angle is initialized and calibrated through GPS speed information calculation, and the accuracy of track angle calibration is greatly improved. The filter convergence speed is high, the navigation positioning precision is high, and the method has important significance on research and development of the automatic driving technology.

The invention belongs to the technical field of drier preparation, and particularly relates to a dishwasher drier and a preparation method and application thereof. The dishwasher drier provided by the invention comprises fatty alcohol-polyoxyethylene ether, a fatty alcohol polyethylene / polypropylene ether copolymer, water-based fluorine-containing polyether siloxane, a polyacrylate modified polymer, sodium isooctanol sulfate, a chelating agent, a suspension stabilizer, a preservative and water. The stainless steel foam inhibitor is applied to an automatic dish-washing machine, and by introducing a modified silicone oil or fluorocarbon compound composite system, a combination of a high-molecular-weight polymer and a low-surface-tension regulator and a biocompatible defoaming agent, the drying performance of the stainless steel surface is remarkably improved, and the foam inhibition effect is optimized; foam generated by protein and an anionic surfactant is efficiently eliminated, meanwhile, environmental protection and sustainability are emphasized, and an efficient, clean and environment-friendly solution is brought to the automatic dish washing machine industry.

The invention provides a comprehensive advanced forecasting method and system for water inrush and mud inrush disaster sources. Belongs to the field of tunnel construction exploration. The system comprises a data collection module, a feature extraction module, a space-time graph neural network (ST-GNN) model, a model training module and an early warning module, a large amount of geological, climate and hydrological data are collected, feature extraction is performed by using a self-encoding neural network, the ST-GNN model is constructed, model training is performed, and a prevention and early warning decision is made. The system is helpful for improving the prevention and coping capacity for water inrush and mud inrush disasters. Particularly, all data are stored on the block chain data sharing platform, so that the security and transparency of the data are ensured, and the reliability and credibility of the data are greatly improved. Generally speaking, the system and the method can accurately predict the time and the place where sudden disasters may occur, give out early warning in time, avoid or reduce the influence of the disasters on life and property of people, and have important practical value.

The invention discloses a method for realizing metallurgical slag viscosity prediction based on a microstructure and machine learning, and belongs to the technical field of metallurgical slag viscosity prediction. The method comprises the steps that according to specific components of a slag system, Lammps software is adopted for molecular dynamics simulation, and the types and the number of microstructure units of slag are obtained; secondly, establishing a microstructure unit model of the slag by adopting machine learning to obtain the molar content of a structure unit; and finally, inputting the molar content of the structural unit of the to-be-predicted slag obtained from the microstructure model into the deduced and modified slag viscosity prediction equation to obtain a predicted value of the viscosity of the to-be-measured slag. According to the method, the interference of external environmental factors is avoided through a microstructure and machine learning method, the viscosity of the metallurgical slag under different components and different temperature conditions can be quickly and accurately obtained, the precision and stability of predicting the viscosity of the metallurgical slag are remarkably improved, and the cost is greatly reduced.

The utility model discloses a loader gearbox clutch installation tool, which belongs to the technical field of clutch installation tools and comprises a workbench, a groove is arranged in the workbench, a first screw rod is rotatably installed on the side wall of the groove, and a driving block is in threaded connection with the outer side of the first screw rod. And a same fixing block is hinged to one sides of the multiple driving rods, a sliding plate is fixedly mounted at the top of the fixing block, multiple inclined plates are movably inserted into the sliding plate, L-shaped connecting rods are fixedly mounted at the tops of the multiple inclined plates, and fixing plates are fixedly mounted on the inner sides of the multiple L-shaped connecting rods. Through mutual cooperation of the first motor, the first screw rod, the driving block, the driving rod, the fixing block, the sliding plate, the inclined plate, the L-shaped connecting rod, the fixing plate and the rubber pad, the fixing plate and the rubber pad can conveniently fix gearboxes with different sizes, so that the assembly precision and efficiency are greatly improved, and the practicability is wider.

The invention provides an upward horizontal layered filling mining method suitable for multiple thin to extremely thin ore veins, and belongs to the technical field of mining. The mining method comprises the following steps of: dividing an ore body into corresponding middle sections, sections and layers, and tunneling stope connection ways from section roadways to the layers, so that the stope connection ways entering the layers penetrate through each vein between an upper wall and a lower wall; undercutting and tunneling in each vein along the trend of the ore body on the two sides of the stope cross gateway to form undercutting roadways, reserving ore pillars on the two sides of the stope cross gateway, and starting to expand the outer sides of the ore pillars, coping and stoping a room; after stoping and filling of the chambers are completed, stoping and filling are carried out on stope connection ways and pillars on the two sides of the stope connection ways; and then stoping and filling are conducted on all the layers in sequence from bottom to top. Through the mode, the method provided by the invention can realize continuous operation of mining and filling while ensuring safe stoping of multiple thin to extremely thin ore veins, reduce dilution loss and improve economic benefits of mines.

The utility model discloses a workpiece transfer trolley with an automatic turnover positioning stop block. The workpiece transfer trolley comprises a hydraulic turnover oil cylinder, a frame and a tray bracket, the material tray bracket comprises a turning plate, two roller supports symmetrically installed on the left side and the right side of the turning plate, and a turning positioning device installed on the outer sides of the roller supports and used for limiting the position of the material tray. Wheels are arranged at the bottom of the frame, a hydraulic turnover oil cylinder is hinged to the frame through an oil cylinder connecting seat, an oil cylinder piston rod extends upwards to be hinged to an oil cylinder hinge seat through a connector, the oil cylinder hinge seat is fixed to the middle of the bottom face of a turnover plate, and the front side of the turnover plate is hinged to the frame through a left hinge and a right hinge. According to a quenching or normalizing station, the tray can be positioned at different positions and in different directions.

The present invention relates to a solid polymer electrolyte based on poly (vinylidene fluoride-co-trifluoroethylene-co-chlorotrifluoroethylene) (PVTF), comprising: a polymer matrix; the solvent is a N, N-dimethylformamide (DMF) solvent; and lithium bis (trifluoromethanesulfonyl) imide (LiTFSI). The PVTF-based solid polymer electrolyte shows an excellent electrochemical window as high as 5.68 V, significantly higher ionic conductivity at ambient temperature of 1.91 * 10 <-3 > S cm <-1 >, and the PVTF-based solid polymer electrolyte has a glass transition temperature (Tg) of less than-38 DEG C.

The utility model provides a socket structure which comprises a main support, a socket bottom cover and a socket panel are arranged in the main support, one side of the main support is provided with an auxiliary support, the other side of the main support is provided with a DG panel, the DG panel is provided with a silica gel panel, and the silica gel panel is provided with a waterproof cover. The socket structure provided by the utility model has the advantages of compact structure, good waterproof performance, good hand feeling and the like, the whole structure is simple and compact by ingeniously assembling the components such as the main bracket, the socket bottom cover, the socket panel, the auxiliary bracket, the DG panel and the silica gel panel, and the silica gel panel is arranged, so that the waterproof performance of the socket structure is improved. And therefore, the electronic device provided by the utility model has great economic value and practical value.

The invention discloses a high-temperature wear-resistant self-lubricating boron-doped diamond coating as well as a preparation method and application thereof, and belongs to the technical field of coating materials. The boron-doped diamond coating comprises a Cr base layer, a CrxByCz gradient transition layer and a B-DLC functional layer which are deposited on the surface of a substrate, the thickness of the Cr base layer is 0.15 [mu] m-0. 25 [mu] m, and the mass percent of Cr is 99.5%-99.99%; the thickness of the CrxByCz gradient transition layer is 0.05-0.10 [mu] m, the mass percentage of Cr is greater than 0 and less than or equal to 99.99%, and the mass percentage of B is greater than 0 and less than or equal to 8%; the thickness of the B-DLC functional layer is 0.8 mu m-2. 0mu m, and the mass percent of B is 3%-5%. The boron-doped diamond coating has the characteristics of high hardness, high toughness and low friction at the same time, and can show excellent self-lubrication and wear resistance in a high-temperature atmospheric environment of 400-500 DEG C.

The invention discloses bacillus subtilis K6 which is preserved in the China Center for Type Culture Collection, and the preservation number of the bacillus subtilis K6 is CCTCC (China Center for Type Culture Collection) NO: 20231096. The invention further discloses application of the bacillus subtilis K6 in detoxification of the corn germ meal, the bacillus subtilis K6 is used for fermenting and detoxifying polluted corn germ meal, the degradation rate of zearalenone in the corn germ meal reaches 95% or above, the degradation rate of aspergillus flavus B1 in the corn germ meal reaches 90% or above, toxic substances can be effectively degraded, the detoxification activity is high, and the bacillus subtilis K6 can be applied to detoxification of the corn germ meal. And the method has good tolerance to high temperature and low pH, has stable detoxification capability, and can remove recessive zearalenone toxin contained in the cake meal at the same time. The utilization value of the corn germ meal can be improved, the nutrient components of the corn germ meal can be improved, and a good technical foundation is laid for deep processing of the corn germ meal.

The invention discloses a capacitor lifting piece robot cooperative welding system and method. The system comprises an automatic box shell carrying robot, an automatic lifting piece welding device, an automatic box shell positioning and overturning device and an automatic lifting piece feeding device. The automatic box shell carrying robot is used for carrying capacitor box shells to the automatic box shell positioning and overturning device from the box shell feeding position. The automatic lifting piece feeding device is used for clamping lifting pieces, carrying the lifting pieces to the welding position and pressing the lifting pieces and the capacitor box shell. The lifting piece automatic welding device is used for welding the lifting piece and the capacitor box shell; and the automatic box shell positioning and overturning device is used for clamping, positioning and welding the capacitor box shell and overturning the capacitor box shell of which one side is welded for welding the other side.

The embodiment of the invention provides an optical test method and device for identifying fly-eye lens defects and a medium. The optical test method for identifying fly's-eye lens defects comprises the following steps: enabling parallel light to pass through a fly's-eye lens to be tested and then to be projected to a lens group; focusing the light emitted by the fly's-eye lens through the lens group, so that the light forms a light spot of the fly's-eye lens on a preset imaging surface; comparing the light spot of the fly-eye lens with a standard light spot; and according to a comparison result, identifying whether the fly's-eye lens has defects or not.

The gas lift reverse circulation drilling machine power head hollow shaft comprises a shaft body, a first cylindrical surface and a third cylindrical surface are arranged at the two ends of the outer surface of the shaft body, a second cylindrical surface is arranged on the right side of the first cylindrical surface, and a first annular boss is arranged on the right side of the second cylindrical surface; a second annular boss is arranged on the inner surface of the shaft body, an axial through hole is formed in the second annular boss, axial blind holes are formed in the end faces of the two ends of the shaft body, the second annular boss is arranged on the shaft body, the axial through hole is machined in the second annular boss, and a slag discharging pipe is arranged in the axial through hole. Functional requirements of rotary driving of the drilling machine, discharge of slag-carrying slurry, input of compressed air and the like are met.

The invention relates to the technical field of photoelectrochemical sensors, in particular to a photoelectrochemical sensor for gentamicin detection. The preparation method of the photoelectrochemical sensor for gentamicin detection comprises the following steps: performing first hydrothermal reaction on copper salt, Bi2S3 and 5, 10, 15, 20-tetra (4-pyridine) porphyrin, and then centrifuging, washing and drying to obtain a Bi2S3 coated Cu-TPyP-MOF heterojunction; the photoelectrochemical sensor is obtained by coating an electrode with a heterojunction and then adsorbing an antibody. An n-n type heterojunction is prepared by taking TPyP as a building block network unit, copper salt as a metal node and Bi2S3 as a template, so that the separation of photo-induced electrons and holes can be promoted, the light current response capability is improved, and the constructed sensor has low detection limit (0.041 fg / mL), wide detection range, high selectivity, good reproducibility and good stability.

The utility model belongs to the technical field of building doors and windows, and particularly relates to a solid wood window lower frame outer side protection structure which comprises a waterproof plate and a clamping piece, the clamping piece is fixedly installed on the upper surface of the outer side of a solid wood window lower frame, the waterproof plate is installed on the clamping piece in a clamped mode, and a gap between the waterproof plate and glass is filled with glass cement. The waterproof plate is made of an aluminum alloy material, and the clamping piece is made of a nylon material. The protection structure for the outer side of the lower frame of the solid wood window has the advantages of being ingenious in design and easy to install, and has a good waterproof effect on the lower frame of the solid wood window, so that the lower frame of the solid wood window on the outer side is effectively protected, the waterproof performance of the solid wood window is improved, and the protection structure has great economic value and practical value.

The utility model provides a kind of corrosion -resistant spiral steel pipe, the utility model includes spiral inner tube body and seamless outer tube body, and interlayer space is formed between spiral inner tube body and seamless outer tube body, and interlayer space is filled with heat preservation filling layer, the outer surface of spiral inner tube body and the inner surface of seamless outer tube body are equipped with corrosion -resistant coating, and the both ends of spiral inner tube body and seamless outer tube body are respectively equipped with first connecting frame and second connecting frame, the edge of first connecting frame is equipped with insert block one, the edge of second connecting frame is equipped with the slot compatible with insert block one, the edge of second connecting frame is equipped with insert block two, the edge of first connecting frame is equipped with the slot compatible with insert block two, and the opening is formed between first connecting frame and second connecting frame, and reinforcing strip is inserted in the opening.The utility model can improve environmental adaptability by double corrosion -resistant coating, optimize the sealing property of connecting structure, enhance the synergistic effect of reinforcing strip and heat preservation layer, to prolong service life and ensure operating stability.

The present invention discloses a device and method for denitrifying and recovering ethane from natural gas by using a mixed refrigerant, which solves the technical problems in the prior art that when the nitrogen content in natural gas is high, the calorific value of its combustion will be affected, the energy consumption in the gathering and transportation process will be high, and the natural gas cannot be directly used as a raw material for certain chemical products and a vehicle fuel. The device comprises a main heat exchanger (1) and a low-temperature separator (2) which are connected in sequence through a cold-insulating pipeline; the top and bottom of the low-temperature separator (2) are respectively provided with a gas phase outlet and a liquid phase outlet, and the gas phase outlet and the liquid phase outlet of the low-temperature separator (2) are respectively connected to a gas phase processing line and a liquid phase processing line. The present invention provides a device and method for denitrifying and recovering ethane from natural gas by using a mixed refrigerant, which has the advantages of simple system operation, high system operation flexibility, adaptability to different load conditions, low energy consumption, reasonable investment, and can not only improve the calorific value of natural gas, but also recover liquid ethane and liquefied petroleum gas, and has great economic benefits.

The application provides a testing device for a fuel cell water distribution element, belonging to the technical field of fuel cells, and solves the problem that the existing testing device does not quantify the water distribution efficiency of the water distribution element and ignores the influence of the flow resistance of the water distribution element on the stack adaptability. The device comprises a gas source, a water pump, a heater, a gas-liquid mixing chamber, a switch valve two, a water collector one, a water collector two, and a first calculation unit. One outlet of the water pump is connected to the inlet of the heater, and the other outlet is connected to the inlet of the gas-liquid mixing chamber. The gas inlet of the gas-liquid mixing chamber is connected to the gas source through the switch valve two, and the gas outlet is connected to the input end of the tested water distribution element. The water outlet of the tested water distribution element is connected to the water collector one, and the exhaust port is connected to the water collector two. The test result calculation unit is used to measure the water distribution efficiency and the flow resistance of the tested water distribution element after starting. The device can output the measured values of the water distribution efficiency and the flow resistance, and avoid the situation that the water distribution efficiency and the flow resistance do not meet the actual use requirements of the stack at the same time.

The invention discloses a wafer IPA drying method for improving wafer edge particle aggregation, and belongs to the technical field of semiconductor manufacturing. The method comprises the following steps: after a wafer is cleaned, lifting the wafer from pure water to the 4 / 5 position of the wafer to be separated from the water surface by using a bottom supporting table, and then clamping the 2 / 3 edge position of the wafer by using a top clamp to continuously lift until the wafer is completely separated from the water surface; in the lifting process, the surface of the wafer is purged through mixed gas of N2 and IPA, and the completely-dried wafer is obtained. According to the invention, the wafer is dried by replacing a wafer lifting mode and cooperating with an IPA drying mode, so that the wafer can be completely dried, and the watermark problem caused by local dryness due to contact between the wafer and the supporting table in the medium replacement process can be avoided. The method is wide in practicability, simple in technological process, short in treatment time, low in cost and good in application prospect.

According to the pulse nozzle capable of automatically switching the water outlets, the inner water outlet is formed in the middle of the nozzle surface cover, the outer water outlets are evenly distributed in the periphery of the nozzle surface cover, and the rotary water outlet element, the water distribution disc, the middle flow guide part and the flow guide pipes are matched in cooperation, so that the water outlets can be automatically switched without an external control structure; the rotary water outlet element is driven to rotate by utilizing kinetic energy of water flow, so that a plurality of water outlet columns on the water outlet element are aligned with holes in the water distribution disc in sequence, the automatic switching of a water flow path between the middle flow guide pipe and the outer flow guide pipe is realized, and finally, the automatic alternate spraying effect of the inner water outlet and the outer water outlet is formed. According to the structural design, the massage coverage range of the nozzle is effectively expanded, pulse water flow with distinct rhythm and changeable directions can be formed, and massage stimulation and comfort are remarkably enhanced. Meanwhile, the device does not need a complex control structure, so that the device is compact in overall structure, convenient to install, high in stability and wide in practicability.

The utility model belongs to the technical field of BIPV (building integrated photovoltaics), and provides a BIPV waterproof system convenient to install, which comprises a plurality of support rods arranged on a roof at equal intervals. The multiple main water tanks are fixedly connected to the multiple supporting rods at equal intervals, the tops of the two opposite side walls of the multiple main water tanks are outwards and fixedly connected with supporting faces respectively, and U-shaped connecting grooves are detachably connected to the main water tanks; the plurality of photovoltaic modules are respectively arranged between two adjacent main water tanks, long frames of the photovoltaic modules are fixedly connected between the U-shaped connecting grooves and the supporting surfaces, buckle plates are arranged at the tops of rear short frames of the photovoltaic modules, and the buckle plate on one photovoltaic module is connected with the front short frame on the adjacent photovoltaic module. The drainage device is convenient and fast to install, large in drainage amount, capable of preventing rainwater from overflowing and suitable for areas with large drainage amount.

The drilling machine with the circulating cooling function comprises a platen, supporting legs, a machine frame, an installation plate, a drilling device and a workbench, a protection box is installed on the outer side of the workbench, a collecting groove is formed in the platen and arranged below the workbench, a filtering box and a cooling box are placed below the platen, and the filtering box and the cooling box are arranged on the workbench. The collecting tank is communicated with a filter box through a sewer pipe, the filter box is communicated with a cooling box through a first communicating pipe, the cooling box is communicated with a fourth communicating pipe through a second communicating pipe, the fourth communicating pipe is communicated with the input end of the pump body, and spray heads are arranged on the left side and the right side of the drilling device. And the nozzle is communicated with the output end of the pump body through a third communicating pipe. The cooling device can cool the cooling liquid, so that the cooling liquid can be continuously recycled, the cooling effect is prevented from being influenced by over-high temperature of the cooling liquid which is recycled for a long time, and the cooling device is convenient to popularize and apply.

The utility model provides a three-plug power line plug assembly, comprising a pedestal, the pedestal is provided with a first fixing hole site and a second fixing hole site, the first fixing hole site is internally provided with a first pin assembly, and the second fixing hole site is internally provided with a second pin assembly. The three-plug power line plug assembly provided by the utility model has the advantages of compact structure, convenient installation, high safety and the like, and adopts the structural design that the first pin assembly and the second pin assembly can be respectively installed at the first fixing hole position and the second fixing hole position in the use process. The first pin assembly and the second pin assembly are provided with limiting bodies and clamping body structures for further fixing, the fastening performance of the plug is further improved, the second pin assembly adopts a cylindrical pin head, so that the safety of the plug is further improved, and therefore, the plug is more convenient to use. The method has great economic value and practical value.

The utility model discloses a foldable antenna support for an electromagnetic radiation detector, which relates to the technical field of electromagnetic radiation detectors and comprises a fixed bottom plate, the upper end of the fixed bottom plate is provided with a slot, the upper end of the fixed bottom plate is fixedly connected with an expansion sheath at the edge of the slot, and two ends of the fixed bottom plate are rotatably connected with side protection plates. One end of the side protection plate is fixedly connected with an arc plate and a fixing plate, the fixing plate is located on the two sides of the arc plate, through the arrangement of the fixing bottom plate and the side protection plate, folding type design is adopted, the antenna support is contained in an electromagnetic radiation detector, when an antenna needs to be supported, the side protection plate is unfolded, and the antenna support is clamped by the arc plate, so that the antenna support is convenient to use. According to the electromagnetic radiation detector, the limiting effect on the antenna can be improved, the use stability is improved, meanwhile, through the arrangement of the expansion sheath and the arc plate, the antenna can be clamped, meanwhile, the bending point of the antenna when the antenna is bent under stress is moved to the upper end of the arc plate, damage to an interface is avoided, and damage to the electromagnetic radiation detector is avoided.

The utility model discloses a branching device for wire processing, which belongs to the technical field of wire processing and comprises a base, two rectangular boxes are fixedly mounted at the top of the base, threaded cylinders are slidably connected in the two rectangular boxes, a same support plate is fixedly mounted at the tops of the two threaded cylinders, and a fixing frame is fixedly mounted at the top of the support plate. Two two-way screws are rotationally installed in the fixing frame, the outer sides of the two two-way screws are both in threaded connection with two T-shaped sliding blocks, a moving frame is fixedly installed between the two corresponding T-shaped sliding blocks, and a rotating rod is rotationally installed between the two moving frames. According to the utility model, through the mutual cooperation of the fourth motor, the bidirectional screw, the synchronous wheel, the synchronous belt, the T-shaped slide block, the moving frame, the rotating rod and the fixed rollers, the two corresponding fixed rollers fix the electric wire, so that the electric wire does not move or distort in the branching process, thereby greatly reducing the potential safety hazard, and being wider in practicability.

This utility model relates to the field of injection molding production, specifically a spring ejection device, including a fixed plate, a male mold, a female mold, and ejector inserts. An injection cavity is provided between the male and female molds, and at least one ejector insert is provided on one side of the injection cavity. An ejection channel is provided on the female mold, communicating with the injection cavity, and the ejector insert is disposed within the ejection channel. The fixed plate is located on the side of the female mold away from the injection cavity, and the fixed plate contacts the ejector insert. This utility model adds ejector inserts to areas where the product easily sticks to the female mold. The spring force ensures that the female mold ejector block ejects along with the product when the mold opens, guaranteeing that the product adheres to the male mold side before being ejected by the male mold ejector pins. The overall structure is simple, widely applicable, and effectively reduces the product defect rate during production.

The invention discloses a single-pendulum single-servo-drive 3 + 2 motorized spindle swing head which comprises an upper box body, a lower box body, a spindle box, a motorized spindle, a C-axis assembly, an A-axis assembly and a transmission assembly, the C-axis assembly comprises a C-axis positioning assembly and a C-axis driving assembly, the A-axis assembly comprises an A-axis positioning assembly and an A-axis driving assembly, a spigot of the upper box body is connected to the bottom end of a ram, the motorized spindle is arranged in the spindle box, and the transmission assembly is arranged in the lower box body. The spindle box is of a simple pendulum offset structure; and the C-axis driving assembly and the A-axis driving assembly share one set of servo motor and speed reducer. The swing head integrates a high-power high-speed motorized spindle, a crankset positioning function for improving rigidity, a single-servo driving double-shaft transposition function and a safe self-locking function, and realizes synchronous reduction of manufacturing cost and use cost, remarkable simplification of control logic and synchronous improvement of structural compactness and reliability. Compared with a double-servo-drive or direct-drive swing head of the same specification, the swing head has the outstanding advantages in the aspects of cost, size, control and safety, and is particularly suitable for 3 + 2 indexing machining.