3467 results about "Work performance" patented technology

The invention discloses an oil cooling device used for a permanent magnet synchronous traction motor. The oil cooling device comprises a cooling channel formed in a shell and an end cover; the cooling channel is communicated with an external oil supplying pipeline by an oil inlet and is communicated with an external oil returning pipeline by a first oil outlet; an oil spraying port is formed in the shell and / or the end cover and is communicated with the cooling channel and an inner cavity of the permanent magnet synchronous traction motor; a second oil outlet is formed in the shell; the inner cavity is communicated with the external oil returning pipeline by the second oil outlet to guide cooling oil in the inner cavity. In such a mode, the oil cooling device can realize the direct cooling of the shell and the end cover, and meanwhile, the inner structure of the shell can be directly and effectively cooled by the cooling oil entering the inner cavity from the oil spraying port, so the cooling efficiency of the oil cooling device is improved, and the work performance of the oil cooling device is improved. The invention also discloses a permanent magnet synchronous traction motor comprising the oil cooling device.

A user interface design and evaluation system and a hand-interaction-based user interface design and evaluation system are provided. The user interface design and evaluation system includes: a user interface design unit, a human model interaction design unit, a user interface prototype simulation unit, a human model simulation unit, and a user interface evaluation unit. In order to develop a user interface in consideration of usability of a user, the system provides a usability evaluation feedback system performing optimization of an interface design based on a motion simulation of a body model and user interface model. Through this, an optimum interface design is derived and by reducing the initial usage difficulty of the new interface for a user, the user can easily use the new interface and work performance of the user can be enhanced. In addition, by supporting fast prototyping and evaluation in a new product development stage, efficient production of a product having a short life cycle can be actively implemented.

The present invention discloses an ultra-high performance concrete with compressive strength of 300MPa or more and a preparation method, and the ultra-high performance concrete comprises the following components in parts by mass: 100 parts of cement, 15 to 70 parts of an admixture, 1 to 5 parts of a nanomaterial, 1 to 20 parts of a viscosity reducer, 110 to 290 parts of sand, 20-50 parts of fibers, 2 to 5 parts of a superplasticizer, 0.1 to 0.5 part of a powder dispersing agent and 15 to 25 parts of water. The ultra-high performance concrete has ultrahigh mechanical properties, the compressive strength after heat curing at 85 DEG C-90 DEG C in standard atmospheric pressure environment can be 300MPa or more, the flexural strength is greater than 55MPa, and the ultra-high performance concrete has excellent working performance and ultrahigh durability.

Systems and techniques are provided for managing an interface between a machine or work vehicle and a surface that the machine / work vehicle travels on in order to provide an optimum work performance level that balances fuel efficiency and surface adversity. Fleet management and reporting capabilities pertaining to such interface management are also provided.

The invention belongs to the technical field for testing photovoltaic grid-connected inverters, in particular to a test bench for testing various performance indexes of a photovoltaic grid-connected inverter. The test bench uses a photovoltaic battery array simulating power supply as the input source of the inverter so to displace the original real photovoltaic battery array, and uses a grid characteristic stimulating power supply to displace a large-power resistor load. The photovoltaic battery array simulating power supply can set the needed weather conditions like illumination, environment temperature, wind speed and the like conveniently, output a V-I (voltage-current) curve conforming to the requirements, and overcome the shortages that the real photovoltaic battery array has multiple uncontrollable factors and the installation and maintenance are not convenient. The grid characteristic stimulating power supply can simulate the characteristics like a grid voltage, a frequency, background harmonic waves and the like, can detect the working performances of the inverter under different grid states, and can feed back the output electric energy of the inverter to a public grid, so that the electric energy loss is reduced.

The invention discloses a tunnel arch center installation operation vehicle. The tunnel arch center installation operation vehicle comprises a machine frame, a travelling mechanism, a traction mechanism, an arch center lifting device for lifting tunnel arch centers which are arranged on the rear part of the machine frame and are needed to be installed one by one, and an arch center transferring mechanism for transferring the arch centers which are lifted by the arch center lifting device one by one through alignment and adjustment; the arch center transferring mechanism comprises a translating trolley which can move forward and backward on the upper part of the machine frame, a lifting mechanism for stably lifting the tunnel arch centers, and a left and right movement mechanism for driving the lifting mechanism to synchronously move left and right; and the translating trolley, the left and right movement mechanism, and the lifting mechanism align and adjust the tunnel arch centers front and back, right and left and up and down respectively. The tunnel arch center installation operation vehicle has a reasonable design, is convenient to assemble, and easy and convenient to operate, safe and reliable in working performance, and good in a using effect, and can solve the problems of large working difficulty in movement and accurate positioning of steel arch centers after lifting during the installation of the conventional steel arch centers, low installation efficiency, large labor intensity and the like.

The invention relates to an intelligent transportation integration control platform system based on a Web geographical information system technology. The system comprises an equipment integration system portion, an integration application system portion and a center database. The equipment integration system portion comprises a signal control subsystem, an electronic police subsystem, a high definition bayonet subsystem, a video monitoring subsystem, a transportation guidance subsystem and a transportation information acquisition subsystem. The integration application system portion comprises an integration transportation geography information subsystem, a police facility equipment management subsystem, a guard plan management subsystem, a real-time traffic condition issuing subsystem, a bayonet deploying and monitoring alarm subsystem and an integration transportation information service subsystem. By using the intelligent transportation integration control platform system based on the Web geographical information system technology, based on Web GIS, various kinds of intelligent transportation system information resources are highly integrated, and unified command and scheduling of urban transportation security management are realized. Operation and monitoring are convenient and fast. Working performance is stable and reliable. A suitable scope is wide.

The present invention relates to a method for achieve automatic driving curve generation between stations during operation by an automatic train driving system. The method comprises that: the system real timely acquires operation information of an automatic train monitoring system, train parameter information and track information of a track database; the driving curve information at each operation stage between the stations is real timely and adaptively calculated; the key point information at each operation stage between the stations is extracted and recorded according to the driving curve information; the best automatic driving curve of the train between the stations during the operation is real timely generated. With adopting the method for achieve the automatic driving curve generation between the stations during the operation by the automatic train driving system, a plurality of disadvantages of the train in the automatic driving process are effectively overcome; the advantages of higher comfort, good energy saving effect, high parking precision, easy adjustment, stable and reliable work performance, and wide application range are provided; the purposes of punctual operation, energy saving operation, high comfort operation, safe and smooth operation of the train are achieved, and the operation requirements of the CBTC system are completely met.

The invention relates to a multifunctional pole-climbing robot which comprises a basal body, a left arm and a right arm which are installed on the basal body and a driving device. The multifunctional pole-climbing robot is characterized in that the basal body comprises an upper main body, a lower main body, a main screw rod and two guide rods, wherein the main screw rod with a lug boss arranged at the upper end vertically penetrates the upper basal body from the upper end surface of the upper basal body, and the lower end is connected with the lower basal body through thread; the driving device comprises a main motor installed on the upper basal body, a pinion gear installed on the output axle of the main motor, a main gear installed on the main screw rod through keys and meshed with the pinion gear, and a motor and a worm gear mechanism which are respectively installed on the upper basal body and the lower basal body, wherein the worm is fixedly connected with the output axle of the motor; the structure of the left arm is identical with that of the right arm, and both the left arm and the right arm comprise hollow legs with wear layers, lower nuts, screw rods, upper nuts, upper end covers, bull gears, driving gears, driving motors, upper pawl levers and lower pawl levers. The multifunctional pole-climbing robot has the advantages that the robot can climb on poles with any section shapes, can span barriers on poles when climbing, and can span and climb a plurality of parallelly vertical poles, and the working performance is excellent.

A user interface design and evaluation system and a hand-interaction-based user interface design and evaluation system are provided. The user interface design and evaluation system includes: a user interface design unit, a human model interaction design unit, a user interface prototype simulation unit, a human model simulation unit, and a user interface evaluation unit. In order to develop a user interface in consideration of usability of a user, the system provides a usability evaluation feedback system performing optimization of an interface design based on a motion simulation of a body model and user interface model. Through this, an optimum interface design is derived and by reducing the initial usage difficulty of the new interface for a user, the user can easily use the new interface and work performance of the user can be enhanced. In addition, by supporting fast prototyping and evaluation in a new product development stage, efficient production of a product having a short life cycle can be actively implemented.

The invention discloses a preparation method of a high-heat-conduction thermal-plasticizing inorganic substance composition and a heat-dissipation part manufactured by the method. The high-heat-conduction thermal-plasticizing inorganic substance composition is prepared by a component A, a component B and a component C, wherein the component A consists of 51wt%-88wt% of one or more inorganic substances with high heat conduction performance, the component B consists of 10wt% to 38wt% of one or more plastics with good processing properties, and the component C consists of 2wt% to 20wt% of a function additive. The preparation method comprises the following steps that: firstly, the configured component A and the configured component B are dried; secondly, the dried components A, B and C are mixed or internally mixed and then are preprocessed to manufacture raw materials; the manufactured raw materials are fed into an extruder, and fibrous heat-conduction inorganic substances are added from a side feeding part to perform modified processing and then are extruded into strips through a multiple-hole die; and fourthly, the materials extruded into strips are subjected to die-surface sized dicing or brace cooling sized dicing, thereby manufacturing the high-heat-conduction thermal-plasticizing inorganic substance composition. According to the invention, the normal service life and work performance of a chip of an electronic product are ensured, and the production cost is reduced.

The invention relates to a system for realizing image high dynamic range compression. The system comprises a primary image input unit, an exposure area calculation unit, a comparison unit, a correction unit, and a compressed image output unit. The invention also relates to a method for realizing the image high dynamic range compression. By adopting the system and the method for realizing the image high dynamic range compression, the problems of damage to a normal exposure area, Halo existing at the edge and over loss of image contrast in the method are effectively solved; the contrast of the normal exposure area is reserved, at the same time, the visibility of the under exposure area and the exposure area is improved; the system and method not only are directly applied in an overall high dynamic compression method, but also can be applied in the brightness (lighting layer) compression in a partial high dynamic compression manner; and besides, the complexity of the operation in the invention is extremely low, so that real time process is facilitated, the process is quick and efficient, the working performance is stable and reliable, and the scope of the application is broad.

The invention relates to a system for measuring a radio-frequency signal high-speed sweeping frequency spectrum based on a digital local oscillator. The system comprises a radio frequency conversion unit, an intermediate frequency signal conditioning unit and a digital intermediate frequency signal processing and controlling unit which are sequentially connected in series. The digital intermediate frequency signal processing and controlling unit is provided with a digital scan synchronous control circuit module and a programmable digital oscillator, wherein the digital scan synchronous control circuit module is connected with an in-phase quadrature (IQ) signal shunt processing circuit module through the programmable digital oscillator, the digital scan synchronous control circuit module is connected with a first local oscillator device, a detector, or a fast fourier transform (FFT) convertor. The invention further relates to a method which is based on the system and achieves synchronous control for the scanning in high-speed sweeping frequency spectrum measurement. Due to the fact that the system and method for measuring radio-frequency signal high-speed sweeping frequency spectrum based on the digital local oscillator are adopted, scanning time is greatly shortened, local frequency accuracy in a scanning process is improved, circuit hardware is simplified, cost is reduced, working performance is stable and reliable, and range of application is wide.

An intelligent safe wearing system is disclosed, which can acquire real detailed data of engineer operation, can perform safety monitoring and protection on workers, and can solve the problem of low manual operation efficiency. The intelligent safe wearing system includes an intelligent safe hat having a date acquisition transmission unit and a data processing unit. The data acquisition transmission unit acquires working personnel data and environment data, and sends the data to the data processing unit; the working personnel data includes personnel SOS global alarm, the blood pressure, the pulse, the heart rate, the body temperature, fingers, human body signs, blood sugar, motion paths, motion amount, images, voice, geographic positions, a personnel real name electronic record. The environment data includes the temperature, the humidity, the air pressure, the wind pressure, noise, the air quality, air components, hazardous gas, and the voltage. The data processing unit includes a personnel SOS global positioning alarm rescue analysis module, a personnel physical condition analysis module, a personnel working state analysis module, a safe prompt and management module, a personnel working performance analysis module, and a personnel real name electric record module.

The invention relates to a serial peripheral slave device interface structure in an integrated circuit chip. The serial peripheral slave device interface structure comprises a register module, a storage module and a state machine logic control module. The serial peripheral slave device interface structure is connected with a central processor of the chip through an internal bus of the chip and is also connected with an external serial peripheral master device through a data transmission wire. The invention also relates to a method for rapidly reading and writing serial peripheral interface data in the integrated circuit chip through the interface structure. The method comprises steps of reading the data through the serial peripheral master device and writing the data through the serial peripheral master device. Through the serial peripheral slave device interface structure in the integrated circuit chip and the data reading and writing method, the data transmission rate is ensured to be much higher than that of an ordinary serial peripheral interface (SPI); the structure is simple; the operation mode is convenient and quick; the development cost is low; the working performance is stable and reliable; the application range is relatively wide; the high speed data transmission interface solution of an integrated circuit is widened; and the structure and the method have wide application prospect.

The invention provides a light energy-saving and heat-insulating composite wallboard which is on the basis of organic / inorganic hybridized nano-enhanced modification technology and a preparation method thereof, and relates to a heat-insulating wallboard. According to the heat-insulating wallboard, a calcium silicate plate serves as a surface layer of the wallboard and ceramsite concrete serves as a core material. The ceramsite concrete is prepared from ceramsite, cement, coal ash, gypsum, AcryloPOSS, redispersible emulsion powder, cellulose, a water reducing agent, a foaming agent and an early strength agent. The strength, the durability, the flame resistance and the working performances of the light energy-saving and heat-insulating composite wallboard are improved by adding organic / inorganic hybridized nano particles into the ceramsite concrete and using the nano size enhancement effect and the flame resistance of the POSS, so the composite wallboard is energy-saving and environment-friendly, is easy to assemble and disassemble and can be hung through a nail.

The invention belongs to the technical field of building materials and particularly relates to low-shrinkage, low-viscosity and ultrahigh strength concrete. Based on a single formula proportional dosage, the low-shrinkage, low-viscosity and ultrahigh strength concrete comprises the following components by weight: 250-300kg of cement, 120-180kg of microspheres, 90-120kg of mineral powder, 820-860kg of machine-made sand, 950-1000kg of gravels, 7-11kg of a water reducer and 115-125kg of water. The components are mixed with stirring for 1.5-2 minutes to obtain a concrete mixture. The concrete provided by the invention is less in binding material use, the total shrinkage percentage is less than (0.03-0.04per mill), the emptying time of an inverted slump cone is 5-10 seconds, the viscosity of mortar in same proportion is 20-28 Mp.s, the 28d compressive strength is 110-130MPa, and the 56d compressive strength is 120-135MPa. The concrete has the characteristics of being low in bonding material use, short in stirring time, excellent in working performance and low in comprehensive cost, and can be produced on a large scale and has a broad application prospect.

The invention discloses a self-radiating motor. The self-radiating motor comprises a shell, a stator, a rotor and a motor rotation shaft, wherein the shell is provided with an end cover; a fan blade for outwardly sucking air from the interior of the shell is sleeved outside the end cover; the fan blade rotates with the motor rotation shaft; and a heat radiating hole favorable for air to flow out of the shell is arranged on the end cover, corresponding to the position of the fan blade. Therefore, air is actively sucked out from the interior of the motor by the fan blade for outwardly sucking air from the interior of the shell. Compared with the self-radiating motor with the fan blade for blowing air towards the interior of the motor in the prior art, the self-radiating effect is better; heat of the motor can be taken away more quickly to reduce the temperature of the motor, so that the self-radiating motor can be applied to environments with higher temperature, therefore, the application range of the motor is further expanded; and better working performance and longer service life of the motor are also facilitated to be maintained at the same time.

The invention relates to a performance appraisal log management system and a management method. A log management information processing functional module, a log management information storage functional module and a man-machine operation interface are arranged in a system information management platform of the management system. The management system realizes the evaluation and the effective management of work performance of employees through the record and the management of information of the employees and the log management information. The management system is applied to the management of the work activities, can regulate the work behaviors of the employees, establish the team work environment, improve the exchange mode of management information, and improve the work efficiency. At the same time, information intercommunication and resource sharing are realized among departments. The management system and the management method have the advantages of extensibility, reliability and safety in management range and at deep level, and easy operation. The dynamic, standard, and efficient flow-type management system is build to improve the levels of work routinization, automation and information integration.

The invention discloses an energy saving method and an energy saving system for a cloud compute data center, which relate to the technical field of the Internet. The method comprises the steps of: A1, acquiring the quantity of virtual machines of the current data center; S2, sequencing the virtual machines according to the quantity of the virtual machines on each physical machine; S3, judging the minimal lower limit quantity n of needed physical machines; S4, selecting n physical machines which have the most virtual machines as a target unit; S5, using the virtual machines on the physical machines except the physical machines in the target unit as a transfer unit; S6, letting the selected current virtual machine correspond to the target unit, and orderly implementing transfer of the virtual machines according to the correspondence relationship of the transfer unit and the target unit. The energy saving method and the energy saving system for the cloud compute data center perform transfer judgment in sequence from less to more according to the quantity of the physical machines, can transfer the physical machines completely as soon as possible, and implement reduction of the energy consumption without reducing the work performance of the cloud compute data center when the virtual machines are transferred.

The invention discloses a scheduling method and system. The method comprises the following steps: when a mobile terminal request is received, determining candidate objects to be scheduled based on preset attribute information included in the request, wherein the candidate objects have attribute information corresponding to the preset attribute information; and determining an optimal object from the candidate objects according to current states and working performance evaluation information of the candidate objects, and scheduling the optimal object on the basis in order that the optimal object interacts with a mobile terminal to process a service request of the mobile terminal. Through adoption of the scheduling method and system, the optimal object can be determined from the candidate objects to be scheduled in conjunction with the current states and the working performance evaluation information of the candidate objects, so that optimal scheduling of CDNs (Content Delivery Networks) of different producers can be realized when the scheduling method and system are applied to scenes in which videos are accelerated under the assistance of a plurality of third-party CDNs, and relevant services such as live video streaming have relatively good acceleration effects.

The invention discloses a modified steel slag composite admixture and a preparation method thereof. The modified steel slag composite admixture comprises 55-75wt% of micro mineral slag powder, 20-40wt% of micro steel slag powder, and 1-5wt% of sintering desulphurization slag. Concrete prepared by mixing the modified steel slag composite admixture of the invention with cement has the following characteristics: the seven day active index is greater than 75%, the twenty-eight day active index is greater than 100%, the specific surface area is equal to or greater than 400m<2> / kg, the sulfur trioxide content is equal to or less than 4.0%, the chloride ion content is equal to or less than 0.06%, the ignition loss amount is equal to or less than 3.0%, and the autoclaving stability is qualified. The modified steel slag composite admixture which allows a low early strength disadvantage of steel slag composite admixtures to be overcome, working performances of concrete to be effectively improved, the strength and the endurance of concrete to be improved, and energy consumption required by slag grinding to be effectively reduced and is in favor of the low carbon economy realization, is a resource use type concrete admixture.

The invention discloses a control method for an electronic expansion valve in an air-cooled cold and hot water air conditioning unit. The control method includes the steps that when the electronic expansion valve is powered on and started, a self-check program of the electronic expansion valve is started, and the electronic expansion valve is initialized and then gets into a standby state; when the electronic expansion valve operates, the external environment temperature of equipment where the electronic expansion valve is located is obtained in real time, and the opening degree of the electronic expansion valve in the operating state is adjusted in real time according to the external environment temperature; and when the electronic expansion valve stops operating and is kept powered on, the opening degree of the electronic expansion valve is reset to the opening degree in the standby state. The invention further discloses a control device for the electronic expansion valve, the air-cooled cold and hot water air conditioning unit and a control method thereof. Through specific initializing effect of the electronic expansion valve, normal operation of the electronic expansion valve is ensured, so that the problem that the span of opening degree adjustment in operation of the electronic expansion valve is too large is solved, and the stability and working performance of the equipment where the electronic expansion valve is located are improved effectively.

The invention relates to a platform system for realizing circuit verification of a Nandflash flash memory controller based on an FPGA (Field Programmable Gate Array). An FPGA debugging plate is provided with an SOC (System on Chip) chip, an FPGA chip and a plurality of Nandflash signal interface modules, the FPGA chip is provided with a bus switching circuit module and an Nandflash controller circuit module, a computer to be tested is connected with each Nandflash signal interface module through a test simulator, the SOC chip, the bus switching circuit module and the Nandflash controller circuit module, and each Nandflash signal interface module is connected with a corresponding test board. The invention further relates to a method for realizing the circuit verification of the Nandflash flash memory controller through the platform system. By adopting the platform system for realizing the circuit verification of the Nandflash flash memory controller based on the FPGA (Field Programmable Gate Array) and the method thereof, disclosed by the invention, the degree of automation is extremely high, the period of research and development is shortened, the cost of research and development is reduced, the test efficiency is high, the use is convenient and fast, the working performance is stable and reliable and the application range is wider.

The invention discloses a method and a system for implementing quick cell selection in a wireless communication system. A mobile device is allowed to quickly select effective cells, time for cell selection is reduced, and work performance is stable and reliable. According to the technical scheme, when the mobile device is allowed to execute full-frequency-band scanning (after the mobile device is turned on, the mobile device not carrying a storage list or cells in the storage list are not suitable for lingering and enter a coverage area from a blind area, or useless neighbor cells are reselected) to select cells, cells, which are lingered to cells in a PLMN (public land mobile network) frequency point list which is stored by the mobile device matched with a pointed PLMN are given priority to trial, an electric level value of a priority trail frequency point is higher than threshold I, and cells with PLMNs ensured to be inconsistent are no longer tried.

The invention relates to a cooperative clustering routing communication method based on grade area division in WSN. The method includes that WSN is subjected to grade area division to realize the distributed non-uniform clustering, an improved LEACH algorithm is adopted in each area to perform self-adaptive clustering, and meanwhile, through the combination with the improved PEGASIS algorithm, the in-cluster nodes of a discrete cluster far away from the Sink node form a chain structure, and after the clustering is completed, the inter-cluster data transmission is carried out through multi-jump routing and cooperative transmission technology. In addition, the optimal cluster number is determined in each area of WSN and the clustering strategy is carried out, the clustering in the areas is uniform, the in-cluster nodes of the discrete clusters in the far areas form a chain to guarantee the node in each cluster in each area to consume energy equally, and the equal node energy consumption in the whole network is realized at the end, the life period of the whole network is prolonged, and the work performance of the whole network is improved.

The invention relates to an intelligent emulsion pump station used in the mine, which belongs to a safe production equipment of coal excavation and comprises an emulsion tank, an emulsion pump, an emulsion pipeline, an emulsion pump station controller. The invention is characterized in that: the emulsion pump station controller comprises a primary control circuit, a secondary control circuit and a PLC programmable controller system control circuit; a pressure sensor (8), a liquid level sensor (14),a concentration sensor (15) and an oil level sensor (18) are arranged in the emulsion tank; a temperature sensor (5) is arranged on an emulsion pump (25); the pressure sensor (8), the liquid level sensor (14),the concentration sensor (15) and the oil level sensor (18) and the temperature sensor (5) are connected with the emulsion pump station controller through a cable. The pumping station adopts constant pressure variable feed liquid, speed control by frequency variation and intelligent control, the two pumps can mutually switch over automatically; the liquid level and the oil level are controlled automatically, the temperature of the emulsion pump is supervised automatically, the safe pressure relief protection and the automatic liquid blending improves the service life of the hydraulic support, highlights the explosion proof security in the coal mine; the working performance is reliable and the operation of the pumping station is economical and energy-saving.

The invention relates to a human body behavioral modeling identification method based on a priori knowledge cluster in a computer system. The method comprises the steps of human body behavioral modeling processing and human body behavioral identification processing. By the adoption of human body behavioral modeling identification method based on the priori knowledge cluster in the computer system, a constructed modeling system has a self-learning capacity and can continuously perfect a classifier along with the classification of observed samples. In cluster distribution obtained in the process of human body behavioral modeling, if outliers exist, the outliers serve as an abnormal behavioral model. When the system is designed, precaution is given as required, the method has great realistic meanings, important influence of priori knowledge on a human body behavioral identification result is considered, an improved cluster method is adopted to model and identify the human body, and foundation can be laid for identifying abnormal behaviors. The method is simple and efficient, can accurately identify different behavioral modes, and has good expandability. Working performance is reliable and stable, and the application range is wide.

The invention relates to the field of machining, in particular to a flexible supporting mechanism for machining a plate workpiece. The flexible supporting mechanism comprises a discrete supporting column and is characterized in that a motor shaft is connected with one end of a connecting shaft through a coupler, the other end of the connecting shaft is fixed onto a lifting screw, a trapezoidal thread is arranged on the outer side of the lifting screw, a lifting nut sleeves the outer side of the lifting screw, a trapezoidal thread is arranged on the inner surface of the lifting nut, the trapezoidal thread on the outer side of the lifting screw is matched with the trapezoidal thread on the inner side of the lifting nut, the lower end of a lifting sleeve is fixed onto the lifting nut, a universal ball joint seat is fixed at the upper end of the lifting sleeve, a universal ball joint is mounted on the universal ball joint seat, a universal ball joint clamp sleeve is fixed on the outer side of the universal ball joint, an electromagnetic sucker seat is fixed on the upper portion of the universal ball joint, an electromagnetic sucker and a complex curved surface plate flexible machining device are mounted on the electromagnetic sucker seat, and the complex curved surface plate flexible machining device is provided with the supporting column. The flexible supporting mechanism has the advantages that relative positions of supporting columns can be randomly adjusted according to plate shapes, the top of each supporting column can spatially and freely swing through the universal ball joint, absorption of the electromagnetic sucker is added, working performances are stable and reliable, and the lifting screw is prevented from sliding by thread self-locking.