1205results about How to "Reduce procurement costs" patented technology

The invention relates to the field of high-voltage direct-current power transmission, and aims to provide an MMC converter valve and method for realizing alternating-current and direct-current fault ride-through based on an energy consumption sub-module. On the basis of a topological structure of a conventional MMC converter valve, M energy consumption sub-modules which are sequentially connected in series and are the same in structure are arranged between a bridge arm inductor of each bridge arm and the midpoint of an upper bridge arm and the midpoint of a lower bridge arm, and each energy consumption sub-module comprises a main through-flow branch, an energy consumption branch and a bypass loop which are connected in parallel; in the main through-current branch, the half-controlled switching device T1 is reversely connected in parallel with a fly-wheel diode D1 of the half-controlled switching device T1, and then is reversely connected in series with the full-controlled switching device T2 and a reverse fly-wheel diode D2 of the full-controlled switching device T2; the energy consumption branch comprises an energy consumption resistor Rd, and the bypass branch comprises a bypass switch K. According to the invention, alternating current fault ride-through and direct current fault ride-through are integrated into the topology of the MMC converter valve, so that the integration level of the protection scheme is improved; voltage fluctuation during alternating-current fault ride-through can be effectively smoothed, and the stability during alternating-current fault ride-through is improved.

The invention discloses a fresh commodity replenishment method and system, electronic equipment and a storage medium, and relates to the field of commodity management. According to the method, fresh food hot topics are obtained from social media, demand hotspots are determined according to the fresh food hot topics, weather influence factors are determined according to predicted weather data, and holiday influence factors and seasonal influence factors are determined according to the current date; determining sales influence factors according to the second sales data of the competitor and the first sales data of the target store; through a preset prediction model, according to the sales influence factors, the demand hotspots, the weather influence factors, the holiday influence factors and the seasonal influence factors, determining predicted demand quantities of various fresh commodities in a second preset time period after the current moment; and determining the purchase quantity according to the predicted demand quantity and the stock quantity of the target store, and determining a purchase scheme according to the purchase quantity and the supplier information. By implementing the technical scheme provided by the invention, the accuracy and efficiency of replenishment of fresh commodities are improved.

The invention provides a data acquisition method and device based on a multi-order queue and electronic equipment, and the method comprises the steps: obtaining production data generated by industrial control equipment; according to the acquisition frequency, the production data is distributed to each level queue of the multi-level queue, the queue number of each level queue is adjusted according to the real-time data volume of each queue in each level queue, and each level queue is used for caching the production data of different acquisition frequencies; according to a data packaging strategy, the production data in the multi-order queue is packaged, and the data packaging strategy comprises a timing packaging strategy and a quantitative packaging strategy; and uploading the packaged production data to an industrial Internet of Things platform. Production data acquisition is performed through the multi-order queue, so that the processing pressure of a single queue can be effectively relieved, the data transmission frequency is reduced, and the resource consumption is reduced, thereby improving the efficiency and reliability of data acquisition.

The invention relates to the technical field of enterprise cloud management, and discloses an ERP enterprise cloud management system, which comprises a system main body deployed based on a cloud computing architecture, the system main body is integrated with a financial management module, an inventory control module, a purchase management module, a sales management module, a production plan module, a human resource management module and a customer relationship management module, and data interaction interfaces and cooperative work mechanisms are arranged among the modules; data are stored by the cloud storage unit, and a data processing task is executed by the cloud operation unit. The ERP enterprise cloud management system breaks data barriers among departments of an enterprise, integrates core modules of financial management, inventory control, purchase management, sales management, production planning, human resource management, customer relationship management and the like, ensures the accuracy and consistency of data, and realizes the cloud management of the enterprise through a data sharing function. All the modules can obtain needed data and information in real time, and seamless transmission and cooperative work of the information are achieved.

The invention discloses a soft rock cave slag green concrete and a preparation method thereof, and belongs to the technical field of solid waste resource utilization, the soft rock cave slag green concrete comprises the following raw materials: cement, a cave slag rock-based mineral admixture, a continuous grading soft rock cave slag coarse aggregate, a soft rock cave slag fine aggregate, a soft rock modifier, a water reducer and water. According to the preparation method, the waste soft rock cave slag in the tunnel excavation process is used for processing the coarse aggregate and the fine aggregate, the waste cave slag is used for processing the cave slag rock-based mineral admixture, meanwhile, the soft rock modifier is adopted for modifying the soft rock coarse aggregate and the soft rock fine aggregate, and the soft rock cave slag green concrete is prepared. The prepared soft rock cave slag green concrete has the advantages of being green, environmentally friendly, low in cost, good in durability and the like.

The invention relates to the technical field of board processing detection equipment, and particularly discloses board visual detection equipment and a detection method thereof.The board visual detection equipment comprises a base, a controller, a first bearing structure, a second bearing structure and a detection structure; the base is rectangular, the controller is fixedly arranged in the middle of the front end of the base, and the device and the method have the advantages that the device and the method are high in universality and flexibility, the production efficiency can be improved, the cost can be low, and visual comprehensive detection effects can be realized; the device can adjust, clamp and limit plates with different widths and lengths, is suitable for plates with various shapes such as rectangular plates, square plates and arc-shaped plates, can detect the plates with different specifications and shapes along the edge lines of the plates, can visually and macroscopically display the edges of the plates through an infrared transmitter, and is high in practicability. The visual detection mode has the advantages of intuition and accuracy.

The invention relates to the technical field of tunneling parameter prediction, in particular to a complex stratum TBM tunneling parameter real-time prediction method. According to the technical scheme, the method comprises the steps of data collection and preprocessing, model selection and training, model prediction and evaluation, and result application and feedback. According to the data collection and preprocessing, operation parameters are collected in real time through various sensors on TBM equipment, wherein the operation parameters comprise the cutterhead rotating speed, the penetration degree, the thrust, the torque, the total thrust, the gripper shoe pressure, the propelling speed, the current and the power. Real-time prediction of the TBM tunneling parameters of the complex stratum is achieved by fusing the machine learning algorithm, the tunneling parameters can be optimized in real time, and the construction efficiency is improved; the tunneling process is stabilized to guarantee the engineering quality; tool abrasion is reduced, energy consumption is reduced, and the construction cost is reduced; equipment faults and accidents are prevented, and construction safety is guaranteed; and construction technology innovation can be promoted, intelligent construction management is achieved, the comprehensive benefits of TBM construction are comprehensively improved, and efficient, safe and intelligent development of tunnel (roadway) engineering is promoted.

The invention provides a power distribution automation terminal debugging system and method based on an IEC104 protocol, and the method comprises the steps: inputting an IP address, a port number and a channel address of a device as parameters after a manufacturer selection module selects a manufacturer name, transmitting IEC104 message data information through a message communication module, a message sending module and a message receiving module, and transmitting the IEC104 message data information to a power distribution automation terminal. An IEC104 message is analyzed through a man-machine interaction interface, the original message and the message meaning represented by each byte of each original message are displayed through the man-machine interaction interface, finally, an information value in the analyzed IEC104 message corresponds to a substation point table, and real-time feedback and display of data are achieved. And meanwhile, a debugging log is recorded. And the method is adaptive to a plurality of manufacturers, so that the same software is used to debug terminal equipment of different manufacturers. The problem that multiple sets of software are used when a user debugs multiple manufacturer devices is solved, and the daily working efficiency is improved.

The invention provides a double-wire system of a wire cutting machine, the wire cutting machine and a wire changing method of the wire cutting machine, which are applied to the field of wire cutting machines, and are characterized in that the double-wire system comprises a limiting assembly used for limiting an electrode wire in the length direction of a machining position; the molybdenum wire winding cylinder is used for containing a molybdenum wire; the molybdenum wire leading-in module is used for driving the molybdenum wire led out of the molybdenum wire winding barrel to move and leading the molybdenum wire into the limiting assembly, and driving the molybdenum wire to return to the molybdenum wire leading-in module when the type of the electrode wire is replaced; the copper wire winding cylinder is used for containing a copper wire; the copper wire leading-in module is used for driving the copper wire led out of the copper wire winding barrel to move and leading the copper wire into the limiting assembly, the copper wire is driven to return to the copper wire leading-in module when the type of the electrode wire is replaced, and the molybdenum wire leading-in module and the copper wire leading-in module are alternately matched with the limiting assembly; the cutting device has the technical effect that a copper wire or a molybdenum wire can be respectively used for cutting a workpiece.

The utility model relates to a bronchoscope analog simulation device which comprises a lung mold and a throat mold, the throat mold comprises a shell and a glottis structure arranged in the shell, and the glottis structure is configured to simulate the glottis of a person and can be opened and closed according to a set program; an inlet allowing the insertion end of the bronchoscope to enter is formed in the top of the shell, an outlet allowing the insertion end of the bronchoscope to penetrate out is formed in the bottom of the shell, and the outlet in the bottom of the shell is communicated with a main air pipe of the lung mold. According to the invention, the insertion simulation operation process of the bronchoscope is realized and is closer to the actual operation environment.

The invention discloses a method for preparing a carbonated nano-gelling activator through CO2 mineralization and a product and application of the carbonated nano-gelling activator, and belongs to the technical field of inorganic materials.The method comprises the steps that 1, a calcium source is extracted, specifically, the solid-phase calcium source and an extracting agent are mixed, and filtering is conducted after extraction to obtain a soluble calcium salt solution; (2) CO2 absorption: capturing CO2 gas by using an alkaline absorption liquid to fully dissolve CO2 to form a soluble carbonate solution; (3) calcium complexation: mixing a soluble calcium salt solution with an organic acid additive to obtain a complexed calcium precursor; and (4) carbonation: adding a soluble carbonate solution into the complex calcium precursor, terminating the reaction and separating the solid phase in the reaction solution when the mixed system generates a precipitate and is colloidal, cleaning by using a blocking agent, and drying to obtain the carbonated nano gelatinization activator. The carbonated nano gelling activator is high in gelling activity and can be used for synthesizing building materials with excellent mechanical strength, and a relatively high resource utilization level is realized.

The invention belongs to but not limited to the technical field of welding, and discloses a power modulation galvanometer laser welding method and device for a zirconium alloy fuel rod. A laser beam adopts a circular scanning track for welding along a circumferential weld, the power of 36 phase points in the circular scanning track is adjusted, a gradient power mode that the middle is high and the two sides are low is adopted for welding, a molten pool is stirred through the rotating laser beam, flowing of the molten pool is aggravated, gas escape is promoted, and meanwhile in the power modulation mode, the welding speed is increased. The surface energy distribution of the whole molten pool is more uniform, the power of the edge position of the molten pool is reduced, the weld seam undercut degree is reduced, and weld seam surface forming is more uniform. Three welding production procedures are reduced into two welding production procedures, meanwhile, the rotating speed during fuel rod welding is increased, the welding procedures are optimized, and the welding efficiency is improved; in addition, the problem that oxidation color beside an end plug welding circumferential weld is heavy is solved; and the welding seam air hole defect is improved, and the welding quality is improved.

The invention mainly relates to the technical field of wine brewing raw material identification. In order to accurately judge the type of sorghum, the invention provides a sorghum type identification method and model, which comprises the following steps: respectively collecting conventional glutinous sorghum, hybrid glutinous sorghum, conventional non-glutinous sorghum and hybrid non-glutinous sorghum samples, and measuring the proportion of amylopectin in total starch and the thousand seed weight in each type of sorghum sample; establishing a sorghum type identification model according to the proportion of the amylopectin content of each sorghum sample in the total starch and the thousand seed weight; the sorghum type identification model automatically judges the type of the sorghum sample to be detected according to the proportion of amylopectin of the sorghum sample to be detected in total starch and the thousand seed weight, so that the quality stability of sorghum used in the brewing industry of wine enterprises and the like can be effectively guaranteed, the raw material purchasing cost and the detection cost are reduced, and the product quality of white wine is further improved.

The invention discloses a dual-optimization park-level integrated energy system scheduling method and system. The method comprises the steps of collecting park data, adjusting a scheduling period and constructing an optimization scheduling model. And importing wind power and photovoltaic power generation optimal output data, and constructing an intra-day optimization scheduling model. And outputting an intra-day optimization result to complete a scheduling process. According to the mechanism provided by the invention, through real-time rolling optimization scheduling and load prediction error correction, the flexibility and stability of the integrated energy system are remarkably improved. Load, market price and weather changes are efficiently handled, emergencies are quickly responded, and stable energy supply is ensured. The carbon emission cost is brought into a scheduling target, the balance between economic benefits and an environmental protection target is realized, and the construction of a low-carbon park is assisted. Key problems of multi-time scale balance, demand response, economical efficiency optimization and the like of the park energy system are effectively solved, and technical guarantee is provided for a low-carbon and intelligent comprehensive energy system.

The invention relates to the technical field of laser processing, and discloses an optical fiber laser uncoiling and slitting all-in-one machine which comprises a feeding module, a leveler module is fixedly connected to the outer wall of the left side of the feeding module, and a laser cutting and slitting module is fixedly connected to the outer wall of the left side of the leveler module. The outer wall of the lower side of the laser cutting and slitting module is fixedly connected with a discharging module. The feeding module is driven by a servo motor to carry out feeding control on a compression roller; the leveler module is used for effectively leveling coiled materials before the coiled materials enter the laser cutting and splitting module, and internal stress of the materials is eliminated; the laser cutting and slitting module is used for conducting longitudinal and transverse cutting and slitting on the materials and can conduct multiple cutting operations at the same time. The functions of flattening, feeding, laser cutting and splitting and discharging are integrated in one device through the optical fiber laser uncoiling and splitting all-in-one machine, one-stop operation from raw material processing to finished product output is achieved, intermediate links in production are remarkably reduced, and the production efficiency is greatly improved.

The invention relates to the field of metal material casting, and discloses a production method of green sand as-cast high-plasticity nodular cast iron QT800-5, which comprises the following steps: preparing pig iron, waste steel and foundry returns, and using auxiliary materials such as a silicon carbide pretreating agent, a high-temperature graphitization carburant, a rare earth magnesium silicon iron nodulizing agent, a silicon barium nucleating agent and a silicon strontium nucleating agent to prepare the green sand as-cast high-plasticity nodular cast iron QT800-5. The purity and component stability of molten iron are ensured; in the smelting process, purification and adjustment are carried out through temperature control and segmented addition of auxiliary materials, then spheroidizing is carried out through a pouring method, and the microscopic structure of a casting is optimized through ladle-to-ladle inoculation and stream inoculation; the final casting has excellent mechanical properties including the tensile strength larger than or equal to 800 MPa, the yield strength larger than or equal to 480 MPa, the elongation larger than or equal to 5% and the matrix pearlite content larger than or equal to 80%. The production process disclosed by the invention is simplified, is suitable for large-scale industrial production, and has a wide application prospect in lightweight application requiring high-strength and high-plasticity materials.

The utility model relates to a manual polishing device for assisting aluminum plate surface micro-deformation detection, which comprises a fixing plate with a handle on the upper side surface, the bottom surface of the fixing plate is connected with a sponge layer, the lower side of the sponge layer is provided with a bottom plate, the lower side of the bottom plate is coated with a sand net, and the sand net is provided with a grinding wheel. And the two ends of the sand screen turn to the upper side respectively and are connected with a clamping device arranged on the upper side of the fixing plate. The polishing device is compact in structure, the surface of the aluminum plate can be manually polished conveniently, and loss is reduced.

The invention provides a numerical control laser machining method and system for a woodworking pre-milling cutter, and relates to the technical field of woodworking pre-milling cutter five-axis numerical control laser machining and manufacturing. According to the method, macroprogram related parameters are obtained through a CAD drawing of the pre-milling cutter, five-axis laser machining equipment and a workpiece are prepared, and after the pre-milling cutter is positioned and installed on the equipment, the five-axis laser machining equipment is installed on the workpiece; a macro program is created or imported into a numerical control system of five-axis laser machining equipment, relevant parameters are written into the program to achieve variable assignment, and finally the macro program is started to machine the pre-milling cutter. The method has the advantages that extra CAM programming software is not needed, the production cost is reduced, the program is fully parameterized, the method is suitable for machining pre-milling cutters of various sizes and specifications, good universality and universality are achieved, meanwhile, the program can be created or modified on a computer in an off-line mode, the equipment debugging time is saved, and the operation process is simplified.

The invention discloses a tight-lock coupler intelligent tensile testing machine and a testing method thereof, and belongs to the technical field of tight-lock coupler test.The tight-lock coupler intelligent tensile testing machine comprises a mounting bottom plate and an electric control cabinet, and a support for supporting a tight-lock coupler to be detected is mounted on the surface of the mounting bottom plate; a tensile connecting frame for connecting the tight-lock coupler is mounted on the surface of the bottom plate on one side of the support, an integrated design of'tensile force detection and visual detection 'is innovatively adopted, mechanical parameter acquisition and visual deformation observation are combined, traditional mechanical data such as tensile force and displacement are obtained, and visual characteristics such as fine deformation and crack initiation are captured; precise synchronization of pulling force application, displacement collection and camera shooting is achieved through the synchronous controller, the real-time corresponding relation of pulling force-displacement-visual deformation is established, the problems that an existing device is single in detection dimension and poor in data relevance are solved, and the potential quality hazard checking capacity and the persuasion of a detection result are improved.

The induction type automatic scattering mechanism comprises an equipment frame, a line body and a bowl body, a supporting frame is installed on an installation frame, and a probe type contact sensor is installed at the output end of an air cylinder; a rotary frame is rotationally connected in the butt joint frame, and a driving piece for controlling the rotary frame to swing is arranged on the material scattering nozzle; a pressing structure is arranged on the sliding connection frame, and a limiting piece is arranged on the outer side of the butt joint frame. According to the powder sagger, firstly, materials can be more uniformly distributed in the sagger body through accurate track control, the quality and consistency of powder sagger filling are improved, the requirement of the production technology for material scattering precision is met, secondly, abrasion and corrosion of impurities to the screen are reduced, the replacement frequency is reduced, and the production efficiency is improved. Therefore, the purchasing cost of the screen and the labor cost required by replacement are reduced, finally, the replacement process of the screen is simple, the replacement efficiency is improved, the requirement for the skill of an operator is reduced, and the replacement work is more convenient.

A moving mechanism comprises a supporting bottom frame, and a driving wheel assembly and a driven wheel assembly are arranged on the bottom face of the supporting bottom frame, so that the whole harvester can move conveniently; the guiding cutting mechanism comprises a guiding assembly which is arranged at one end of the supporting bottom frame and used for guiding and collecting a row of Chinese chives, and a cutting assembly for cutting the collected Chinese chives is arranged on the portion, below the guiding assembly, of the bottom face of the supporting bottom frame. The conveying mechanism is arranged above the supporting bottom frame, located between the guiding assembly and the storage box and used for conveying the Chinese chives cut by the cutting assembly. The storage box is arranged on the top face of the supporting bottom frame, located on the side, away from the guiding assembly, of the conveying mechanism and used for storing the cut Chinese chives. According to the small-sized Chinese chive harvester, the harvesting efficiency is improved, the labor intensity of workers is reduced, trouble and labor are saved, and compared with a semi-automatic hand-push type harvester, the production and purchase cost is reduced.

The invention discloses an optoelectronic positioning system for a tethered unmanned aerial vehicle that does not rely on satellite navigation and ranging equipment. The system comprises: an airborne optical alignment device deployed on the tethered unmanned aerial vehicle, and a ground optical alignment device and a solution positioning module deployed on a ground control station; wherein the airborne optical alignment device comprises an airborne solid-state camera and an airborne laser target, and the ground optical alignment device comprises a ground solid-state camera and a ground laser target; the airborne optical alignment device is used to image the ground laser target through the airborne solid-state camera to obtain the coordinate value of the ground laser target on the target surface of the airborne solid-state camera; the ground optical alignment device is used to image the airborne laser target through the ground solid-state camera to obtain the coordinate value of the airborne laser target on the target surface of the ground solid-state camera; the solution positioning module is used to obtain the position information of the unmanned aerial vehicle by solving the above coordinate values ​​according to the optical geometric relationship, so as to realize positioning.

The invention relates to motherwort cultivation. The leonurus japonicus rooting induction method is characterized by comprising rooting induction: when adventitious buds grow to 1-3 cm, the adventitious buds are cut off from explants and transferred into a rooting culture medium to be cultured, the rooting culture medium takes an MS culture medium as a basic culture medium, and IBA with the concentration of 0.1 mg.L <-1 > is added into the rooting culture medium. The components of the culture medium are selected, and the rooting rate of the selected rooting culture medium is high.

The embodiment of the utility model provides a clothes dryer integrated with a water heating function, and belongs to the technical field of household appliances. Comprising a clothes dryer body and a water heater, the clothes dryer body comprises a shell, a roller rotationally installed in the shell, a smoke channel communicated with an air inlet hole of the roller, an exhaust device, a first gas burner communicated with the smoke channel, a motor, a first gas pipe and a smoke exhaust pipe, and a first control valve is arranged at an air outlet of the first gas pipe; a gas outlet of the first gas pipe communicates with the gas inlet end of the first gas burner, and one end of the smoke exhaust pipe communicates with an air outlet of the air exhaust device. The water heater comprises a second gas burner, a heat exchanger and a second gas pipe, the heat exchanger is arranged at the upper end of the second gas burner, a smoke outlet of the heat exchanger is communicated with the smoke channel, a gas outlet of the second gas pipe is communicated with the gas inlet end of the second gas burner, and a gas inlet of the second gas pipe is communicated with the first gas pipe. And the second gas pipe is provided with a second control valve.

The invention relates to the technical field of energy storage, and provides a liquid air energy storage system coupled with an air separation device, which comprises an air compression system, an expansion power generation system, a cold box cold storage system and a liquid air storage tank. The air compression system and the expansion power generation system are both connected with the cold box cold storage system and the liquid air storage tank. The cold box cold storage system is coupled with the air separation device; in the energy storage stage, extra liquid nitrogen produced by the air separation device is used for cooling and liquefying the high-pressure air passing through the cold box, and the liquid nitrogen is gasified and stored in a medium-pressure nitrogen tank; and in the energy release stage, the nitrogen stored in the medium-pressure nitrogen tank reheats the liquid air passing through the cold box, and the nitrogen is cooled and liquefied by the liquid air for use. The cold box cold storage system is coupled with the air separation device to replace an original cold storage unit of the liquid air energy storage system to achieve the energy storage and release process, a cold storage medium does not need to be arranged for the liquid air energy storage system, the purchase cost of the cold storage medium is reduced, and safe operation of the liquid air energy storage system is facilitated.

The invention belongs to the technical field of college purchase risk management, and discloses a college purchase risk management and fund early warning system in a multi-supplier environment. The invention provides a college purchase risk management and fund early warning system in a multi-supplier environment. The system comprises a supplier management module, a purchase plan scientific making module, a fund early warning and monitoring module and a data statistical analysis and decision support module. According to the invention, a set of integrated purchase risk management and fund early warning system is constructed, the overall efficiency of college purchase management is improved through a digital whole process, risks occurring in the purchase process can be effectively identified and managed, and unnecessary expenditure is reduced through accurate fund management; therefore, high efficiency, transparency and compliance of college purchasing activities are ensured.

The invention discloses a group meal purchase optimization method based on order data, and belongs to the technical field of purchase, a neural network is adopted to construct a group meal sales volume prediction model, historical order data is learned through the group meal sales volume prediction model, and the group meal sales volume prediction model with prediction capability is determined. And determining a group meal sales volume prediction result through the group meal sales volume prediction model with prediction capability, and obtaining a group meal purchase plan on the basis of the group meal consumable stock quantity and the group meal sales volume prediction result, thereby realizing reduction of purchase cost and reduction of food material waste.

The invention relates to an electric mine truck driving control system and method, in particular to a large-tonnage electric wheel mine truck driving control system and method, and solves the technical problems that the import purchase price of an existing high-power diesel engine is high, electric energy emitted by a mine truck is difficult to store, and a large amount of energy is wasted and the environment is polluted. The driving control system for the large-tonnage electric wheel mine truck comprises a driving unit and an electrical unit, the driving unit comprises two driving mechanisms connected with mine truck hubs on the left side and the right side correspondingly. Each driving mechanism comprises a driving module, a speed reduction module and two driving inverters. The electrical unit comprises a whole vehicle VCU, a power generation module, a battery module, a generator inverter and a PDU power distribution module. According to the driving control method for the large-tonnage electric wheel mine truck, the whole truck can independently use the power generation module to output a power supply, can also independently adopt the battery module to normally drive, and can also adopt the power generation module and the battery module at the same time, so that high efficiency, intelligence and environmental protection are brought into full play.

The utility model relates to a portable surgical robot which comprises an X shaft, a Y shaft, a Z shaft, a navigation device and a main control device, the X shaft, the Y shaft and the Z shaft are connected to a mechanical arm base through a mounting base, the X shaft, the Y shaft and the Z shaft are matched with one another to control the spatial orientation of a tail end device of the portable surgical robot, the X shaft comprises at least one adjusting mechanism parallel to the X shaft, and the main control device is connected with the navigation device. The Y shaft comprises at least one adjusting mechanism parallel to the Y shaft, the Z shaft comprises at least one adjusting mechanism parallel to the Z shaft, and the main control device is connected with the X shaft, the Y shaft and the Z shaft. By means of the technical scheme, the size of the adjusting device can be reduced, and meanwhile accurate adjustment of the tail end device is achieved in the X-axis direction, the Y-axis direction and the Z-axis direction.

The utility model discloses an auxiliary device for hub assembly, which relates to the technical field of automobile assembly, and comprises a parallelogram structure formed by hinging the end parts of a first suspender, a second suspender, a third suspender and a fourth suspender, and the adjacent third suspender and fourth suspender extend and bend downwards to respectively form a vertical second suspension arm and a vertical first suspension arm; rotary clamping mechanisms are respectively mounted at the end parts of the first lifting arm and the second lifting arm; hanging rings are arranged at hinged ends of the first hanging rod and the second hanging rod; the rotary clamping mechanism comprises a bearing sleeve, a bearing, a connecting rod and a rotary clamping jaw; the rotary clamping jaw is fixedly connected with a connecting rod, the connecting rod penetrates through a bearing sleeve and is locked and fixed by a nut, a bearing is sleeved on the connecting rod, and the bearing sleeve is sleeved on an outer ring of the bearing; and the bearing sleeves on the left and right sides are respectively connected with the first suspension arm and the second suspension arm. The hub turnover device solves the problems of low production efficiency, high labor intensity and unsafety in the carrying process due to the fact that hubs are directly turned over manually in the existing hub assembly process.