236results about How to "Reduce operating errors" patented technology

The invention relates to the technical field of force feedback handles, in particular to a remote surgical robot control system based on a force feedback handle and a control method thereof. The method comprises the following steps: carrying out multi-dimensional force data acquisition on an end effector of the surgical robot, and carrying out contact force size, direction and time sequence feature extraction to obtain multi-dimensional force feature data; performing surgical operation safety baseline analysis according to the multi-dimensional force feature data to generate surgical operation safety baseline data; performing dynamic force feedback threshold calculation according to the surgical safety operation baseline data to obtain force feedback threshold range data; and performing adaptive compression processing on different force feedback signals according to the force feedback threshold range data to obtain dynamic force feedback control parameters. Through real-time control instruction optimization and a closed-loop feedback strategy, the system can quickly respond to an operation intention, early warning is carried out on potential risks, and it is ensured that the operation process is safer and more reliable.

The invention relates to the technical field of automobile metal part drilling machining, in particular to an automobile steering knuckle drilling pre-machining machine tool. The automobile steering knuckle machining equipment comprises an installation machine base, a drilling device, a tool clamp and a control system, the drilling device and the tool clamp are installed on the installation machine base and are important components of the equipment, and preprocessing of an automobile steering knuckle is achieved; the control system comprises a hydraulic system, a pneumatic control system, a cutting fluid circulating system, a lubricating system, a chip removal system and an electric control system. The drilling device, the tool clamp, the material pressing device, the control device and other functional components are efficiently matched, the efficiency of automobile steering knuckle drilling pre-machining is remarkably improved, through precise movement of the drilling device, stable fixation of the tool clamp and the material pressing device and continuous lubrication of the lubricating device, high precision of the machining process is guaranteed, and the machining efficiency is improved. The problems of workpiece machining defects, equipment overheating and the like are reduced, and potential safety hazards are reduced.

The invention discloses a high-altitude autonomous paint spraying method based on a multi-rotor unmanned aerial vehicle, and relates to the technical field of high-altitude paint spraying, the multi-rotor unmanned aerial vehicle is provided with a binocular camera and spraying equipment, and the autonomous paint spraying method comprises the following steps: step S1, unmanned aerial vehicle self-inspection; s2, after self-inspection is qualified, preliminary spraying work is conducted according to a set paint spraying task route, obstacles are avoided in the flying process, and image information is collected; s3, the unmanned aerial vehicle flies back to the starting point where paint spraying work starts, the original route is repeated once, machine vision carrying a Yolov5 neural network is added, and paint spraying defects occurring during primary paint spraying work are checked; s4, a spraying coefficient is selected according to the defect type, and the regional paint spraying defect is improved; and S5, the unmanned aerial vehicle autonomously returns along the historical path. According to the high-altitude autonomous paint spraying method based on the multi-rotor unmanned aerial vehicle, the paint spraying effect can be evaluated and fed back in real time, the paint spraying effect is optimized, and the quality and effect of operation completion are guaranteed.

The invention discloses a metro crew scheduling plan compilation optimization method and system based on an algorithm, relates to the technical field of metro scheduling, and is used for solving the problem that a conventional metro crew scheduling system is not timely in peak allocation. In the prior art, traffic roads are directly matched with aircrafts one by one, but the adaptability between the traffic roads and the aircrafts is not fully considered, and optimization is not carried out aiming at special requirements in peak hours. In the peak period, the demand is far greater than that in the low peak period, more aircraft shifts are possibly needed for support, and in the peak period, the important demand is that the route and the aircraft shifts with high matching degree need to be preferentially matched. According to the method, through matching optimization of the route and the locomotive crew and combination of historical passenger flow data, efficient subway team scheduling is achieved, and it is ensured that the shift demand in the peak period is preferentially met.

According to the intelligent dust suppressant adding and spraying device and the using method thereof, two same water tanks are arranged on a supporting plate side by side, a water tank cover plate is installed at the tops of the water tanks, a stirring motor, a water inlet valve, a water inlet stepping motor, a belt system and a dust suppressant storage box are installed on the water tank cover plate, and a fog gun machine capable of rotating all around is further installed on the supporting plate and used for spraying; a water suction pump, a water outlet valve and a water outlet stepping motor are installed at the bottom of the supporting plate, and the water suction pump transports the dust suppressant solution in the water tank to the fog gun machine through a water hose to complete spraying. A liquid level monitor, a controller and a dust concentration monitor are installed on the side edge of the water tank, the liquid level monitor and the dust concentration monitor transmit signals to the controller, the controller responds to control the working states of the stepping motor, the belt and the water suction pump, and the intelligent control process is achieved. The device can be automatically operated, the functions of quantitative feeding and intelligent spraying rate adjustment are achieved, material waste is avoided, and remarkable environmental protection benefits and economic benefits are achieved.

The invention relates to the technical field of anesthesia control systems, in particular to an oral anesthesia control system based on dynamic pressure detection, which comprises a database used for storing relevant data corresponding to oral treatment, an early warning module used for performing early warning when the anesthesia progress is not matched with a preset result, and a control module used for adjusting the pushing force borne by an injector. The dynamic pressure control module is used for controlling the dynamic pressure, the injection point positioning module is used for acquiring an anesthetic injection needle entry point corresponding to oral treatment, the injection flow rate acquisition module is used for acquiring the uniform injection flow rate of an anesthetic, and the injection progress supervision unit is used for monitoring the injection flow rate and the dynamic pressure; automatic adjustment and control can be carried out according to changes of the injection flow rate of anesthetic in the injector, so that the stability of the injection flow rate is kept, the phenomenon that a patient pains due to fluctuation of the injection flow rate is avoided, the probability of misoperation is reduced, and meanwhile the stable injection flow rate is beneficial to improving the using effect of the anesthetic.

The invention relates to the technical field of tobacco leaf curing adjustment, and particularly discloses an intelligent tobacco leaf curing platform which is provided with a to-be-cured tobacco leaf qualification judgment subsystem, a placement state judgment subsystem, a curing scheme comparison subsystem, a curing state qualification judgment subsystem and a cooling state qualification judgment subsystem. The intelligent tobacco leaf baking system solves the problems that a traditional intelligent tobacco leaf baking system is possibly insufficient in comprehensive management capacity for links such as tobacco leaf pretreatment, baking and cooling, lacks the optimization capacity of the whole process, is insufficient in integration capacity and is insufficient in adaptability to different tobacco leaves, the overall quality of tobacco leaf products is greatly improved, unqualified products are reduced, and the intelligent tobacco leaf baking system is suitable for large-scale popularization and application. Through mutual linkage of the subsystems, the operation process is optimized, the production efficiency is improved, and personalized processing of different tobacco characteristics is realized, so that the final flavor and quality of tobacco are improved, possible problems can be tracked and corrected in time in the production process, and the response speed of production is improved.

The utility model relates to the technical field of foaming sponge forming, and discloses foaming sponge forming equipment which comprises a peripheral protection frame, a bottom supporting conveying belt is installed at the bottom of the left half portion in the peripheral protection frame, and a side baffle is arranged in the peripheral protection frame. The side baffle, the bottom supporting conveying belt and the left side wall of the peripheral protection frame jointly enclose a foaming sponge forming space, a side baffle recycling mechanism is installed on the right half part in the peripheral protection frame, and a forming guiding-out ramp connected with the right side of the supporting conveying belt is installed at the bottom of the right half part in the peripheral protection frame. A stirring mechanism is installed on the left side wall of the peripheral protection frame. The foamed sponge forming equipment has the advantages of being simple and convenient to operate, improving the production efficiency, reducing the operation difficulty and guaranteeing the production quality in the aspect of leading-out operation after sponge forming. Due to the advantages, the equipment has high competitiveness and wide application prospects in the sponge forming industry, and the requirements of users for efficient and stable production can be met.

The invention relates to a container terminal visual berth distribution system and a berth distribution method, and belongs to the technical field of port management, and the system comprises a berth planning coordination module, a berth real-time allocation module, a berth adjustment optimization module, a visual operation module, a data analysis auxiliary module and a system performance monitoring module which are in signal connection with one another; wherein the berth planning coordination module outputs a berth planning scheme, the berth real-time allocation module outputs a berth allocation scheme, the berth adjustment optimization module outputs a berth adjustment scheme, and the visual operation module provides graphic display and operation of berths on a wharf, resource states and ship dynamics. Dynamic information and operation are fed back to the data analysis auxiliary module, and the data analysis auxiliary module provides data analysis results for the parking space planning coordination module, the parking space real-time allocation module and the parking space adjustment optimization module and assists in management decision making. According to the invention, rapid intelligent distribution and real-time distribution of berths can be carried out, and automation of wharf management is realized.

The invention discloses an automatic wobble plate packaging machine which comprises a lifting wobble plate mechanism, a double-layer conveying line and an automatic wobble plate returning mechanism, and the double-layer conveying line comprises an upper-layer conveying line and a lower-layer wobble plate returning line. And the lifting limit positions of the lifting tray placing mechanism and the automatic tray returning mechanism correspond to the height positions of the upper-layer conveying line and the lower-layer tray returning line of the double-layer conveying line respectively, and the conveying surfaces are flush. A backflow circulation line of the jig is formed by the lifting tray placing mechanism and the automatic tray returning mechanism which are arranged at the two ends of the double-layer conveying line, the situation that the overall working efficiency is low due to manual carrying is avoided, and the requirement for large-batch production and machining is met. And meanwhile, the working areas are arranged on the double-layer conveying line, so that the PCB is subjected to corresponding processing procedures such as adherence packaging and the like during conveying, the overall processing efficiency is effectively improved, the situation that a packaging film is damaged or the surface of the circuit board is scratched due to excessive picking and moving can be avoided, and the product yield is guaranteed.

The invention belongs to the technical field of touch screen tactile feedback design, and particularly relates to a touch screen multi-element tactile feedback method and a touch screen multi-element tactile feedback system, and the touch screen multi-element tactile feedback method comprises the following steps: 1, constructing a tactile perception model of multi-element tactile driving signal parameters; 2, constructing a touch sensing model of the three-dimensional feature information of the elements on the touch screen; 3, constructing a multi-element tactile feedback driving signal parameter model of the element three-dimensional feature information based on the tactile perception model of the element three-dimensional feature information on the touch screen and the tactile perception model of the multi-element tactile driving signal parameters; and step 4, sensing a touch position on the touch screen so as to obtain three-dimensional feature information of a touch position element and a multivariate tactile feedback driving signal parameter model based on the element three-dimensional feature information, so that a multivariate tactile feedback driving signal parameter is obtained, a corresponding multivariate tactile feedback driving signal is generated, and a multivariate tactile generation source is driven. The method acts on the touch screen.

The invention relates to the technical field of biology, in particular to a DNA tag library construction method based on droplet sorting and a magnetic microsphere technology, according to the method, the concentration of DNA tag template sequences is adjusted through Poisson distribution, it is ensured that each droplet contains at most one DNA tag template sequence, the problem that multiple templates are mixed into the droplets can be solved, and the DNA tag library construction efficiency is improved. The method has the advantages that the method is simple and convenient to operate, label repetition and collision are avoided, uniqueness of DNA labels in liquid drops is guaranteed, DNA label sequences after PCR amplification are further captured through magnetic microspheres, it is guaranteed that the amplified DNA labels can be efficiently recycled and purified, interference of non-specific reaction in PCR amplification is avoided, and the method is suitable for large-scale popularization and application. The combination of the technical points ensures the application advantages of the technical scheme in high-throughput sequencing, including diversity, accuracy and high efficiency of tags.

The utility model discloses a printing device with a three-dimensional multi-surface printing function, which comprises an operating platform, a plurality of fixed rods arranged on the operating platform, a top plate arranged at the end parts of the fixed rods, a movable plate arranged on the fixed rods in a sliding manner, a mounting frame arranged on the movable plate, a printing net arranged in the mounting frame, a driving mechanism arranged on the top plate, and a transverse plate arranged on the movable plate, the output end of the second electric push rod is connected with a mounting plate; a mounting rack is mounted below the mounting plate; a mounting rod is arranged in the mounting rack; an extrusion roller is rotationally arranged on the mounting rod; the two sides of the box body are printed at the same time, time is greatly saved through the design, printing efficiency is improved, operation errors possibly caused by overturning of the box body are reduced, and stability of printing quality is further guaranteed.

The invention discloses an automatic silkworm breeding system device, and relates to the technical field of silkworm breeding. The automatic silkworm breeding system device comprises a mounting main support, an unstacker, a stacker crane, desanding equipment, disinfection equipment and feeding equipment, the unstacker crane and the stacker crane are arranged on the mounting main support, grabbing assemblies are arranged on the unstacker crane and the stacker crane, the grabbing assemblies are located on the mounting main support, and the desanding equipment comprises a magnetic attraction assembly. Bidirectional threaded rods are rotatably mounted on the inner walls of the front and rear sides of the U-shaped plate, an auxiliary rod is fixedly connected between the inner walls of the front and rear sides of the U-shaped plate, the disinfection equipment comprises quick lime spraying equipment, and the feeding equipment comprises a quantitative assembly which is located on one side of a magnetic attraction assembly. According to the silkworm excrement screening device, silkworm excrement on the silkworm winnows can be shaken and screened, so that the breeding environment is improved, the disease occurrence rate is reduced, the requirement for manually cleaning the silkworm excrement is reduced through automatic screening, the labor intensity of breeding personnel is relieved, and the working efficiency is improved.

The invention belongs to the technical field of sewage pipeline welding equipment, and particularly relates to a sewage pipeline welding device for sewage treatment, which comprises a bottom plate, a pipeline supporting mechanism and two first threaded insertion rods are fixedly embedded in the top end of the bottom plate, and the rod walls of the two first threaded insertion rods are both in threaded sleeve connection with first grounding rings; the top ends of the two first threaded insertion rods are jointly and fixedly connected with an L-shaped base. The sewage pipeline welding device not only has the function of automatically and accurately positioning and aligning the flange plate and the sewage pipeline, but also has the functions of automatically blowing away impurities from a welding seam, detecting micro-deformation of the side end of the sewage pipeline, automatically rotating and welding the flange plate and the sewage pipeline and detecting the welding quality, so that the labor intensity of workers can be reduced, and the production efficiency is improved. And the welding quality, convenience and efficiency of the flange plate and the sewage pipeline are effectively improved, and the reliability and stability of the sewage pipeline welding device in practical application can be improved.

The invention relates to the technical field of robot sensors, in particular to a visual tactile sensor based on color block mark array optimization and a three-dimensional reconstruction method, and the method comprises the steps: enabling four colors with remarkable visual difference to correspond to two patterns with different sizes to form eight digital identifiers, a binocular vision camera is used for collecting a color block array on the surface of an elastomer, on the basis of completing three-dimensional calibration and image preprocessing, the color block characteristics of mark points and neighborhood distribution of the mark points are used as constraints, displacement distance screening, line positioning and inter-frame movement continuity are combined, rapid matching and dynamic tracking of the mark points are achieved, and the accuracy and the accuracy of three-dimensional calibration are improved. According to the method, the spiral search traversal frequency is remarkably reduced, the system processing time is shortened to about 270 ms from about 320 ms through array structure design, matching strategy optimization and sensor structure miniaturization cooperation, high-precision reconstruction is guaranteed, meanwhile, the real-time performance and robustness are improved, and the method is suitable for complex operation scenes such as industrial robot precision assembly and flexible grabbing.

The invention relates to the technical field of scum cleaning, in particular to a QPQ salt bath scum cleaning device and method. The device comprises an extraction pipe, an extraction pipe head, a locking cover, an extraction rod and an extraction rod head matched with the inner diameter of the extraction pipe head, the drawing pipe is in a thin cylinder shape and is opened at two ends; the drawing pipe head is in a conical barrel shape, openings are formed in the two ends of the drawing pipe head, and the large end of the drawing pipe head is connected with the first end of the drawing pipe. A through hole is formed in the center of the locking cover, and the locking cover is connected with the second end of the drawing pipe; the drawing rod is in a long rod shape, the diameter of the drawing rod is smaller than the inner diameter of the drawing pipe, the diameter of the drawing rod is in clearance fit with the inner diameter of the through hole, and the first end of the drawing rod penetrates through the through hole and is arranged in the drawing pipe in the axial direction of the drawing pipe; the drawing rod head is arranged in the drawing pipe, and the drawing pipe head is connected with the first end of the drawing pipe. According to the device, fine particle scum precipitated in salt bath liquid is effectively sucked into the suction pipe, and the cleaning efficiency is remarkably improved.

The invention relates to the technical field of articular ligament reconstruction operation planning, in particular to an articular ligament reconstruction operation planning system and method, and the system comprises a data collection module which is used for obtaining the joint image data and physiological parameters of a patient; the artificial intelligence analysis module comprises a storage for storing instructions and a processor, and the processor executes the instructions to execute the following operations: the joint ligament reconstruction operation planning system can accurately process joint image data of a patient by integrating the advanced artificial intelligence analysis module; and the ligament injury is comprehensively evaluated based on a deep learning algorithm. The accurate analysis capability ensures individuation and accuracy of surgical planning, so that the surgical accuracy is remarkably improved. Meanwhile, by means of the real-time navigation and auxiliary functions provided by the system, doctors can know the operation area more clearly in the operation process, operation errors are reduced, and the safety of the operation is improved.

This invention relates to an equivalent accelerated testing method for plexiglass based on creep constitutive equations, belonging to the technical field of accelerated testing of polymer structures. Addressing the testing requirements for the creep performance of plexiglass structures, this invention shortens the testing cycle and saves testing costs through the design of testing temperature and pressure. Simultaneously, the reduced testing time indirectly saves manpower and material resources, and also reduces the frequency of random risks such as power outages and equipment failures. Therefore, the testing method of this invention has significant timeliness and economic efficiency, and can effectively improve the accuracy of quantitative analysis, possessing important value for engineering practice.

The present application relates to the technical field of detection equipment, and more particularly to a seamless stainless steel pipe welding defect sensing and detection equipment, which comprises a rack, one side of the upper end of the rack is provided with a three-jaw chuck, the other side of the upper end of the rack is fixedly connected with a detection ring seat, one side of the rack is fixedly connected with a fixing frame, the fixing frame is fixedly connected with a feeding assembly, the bottom end of the fixing frame is fixedly connected with a pre-buried seat, a discharging chute is fixedly connected through the middle of the rack, and a material receiving assembly is symmetrically arranged above the discharging chute. Through the feeding assembly, the steel pipe on the ground can be automatically conveyed into the material receiving assembly and fixed by the three-jaw chuck, manual carrying is not needed, the demand for manual carrying is reduced, the work intensity of workers is reduced, and when the feeding assembly is retracted to the reset position, the protective plate on the pre-buried seat can be automatically closed, the workers are prevented from stumbling, the safety is improved, the efficiency is improved, the time is saved, the cost is reduced, and the product quality is steadily improved.

An intelligent tool car relates to the technical field of tool cars. According to the intelligent tool car provided by the utility model, paper drawings are replaced by electronic drawings by combining existing hardware modules. Therefore, automatic updating of online drawings is realized, resource waste is reduced, and drawing retrieval and updating efficiency is improved. Furthermore, the tool is intelligently associated with the drawing, so that the operation error and the tool loss rate are reduced, and the anti-loss management of the tool can be realized. Furthermore, through the modular design and the plug-and-play characteristic of existing hardware, the manufacturing cost of the equipment is reduced by 30%, development programs do not need to be customized, the equipment can be directly adapted to management systems of different workshops, and the popularization threshold is low. The system is suitable for non-standard processing scenes such as digital intelligent plate cabinet workshops and the like, and is used for solving the problems of lagging drawing management, low tool use efficiency, resource waste and the like.

The utility model discloses a light-emitting diode lead plugging device, and relates to the technical field of light-emitting diode processing. The light-emitting diode lead plugging device comprises a mounting frame body, a moving assembly and a bunching assembly, the moving assembly is located on the mounting frame body, the bunching assembly is located on the moving assembly, the bunching assembly comprises a first connecting plate, a second connecting plate, a rebound device, transverse rods, an assembling block and a threading plate, the transverse rods are fixedly connected between the adjacent inner walls of the first connecting plate and the second connecting plate, and the assembling block is fixedly connected with the transverse rods. A plurality of groups of assembly blocks are slidably mounted on the cross rod, and threading plates are fixedly connected to the bottoms of the assembly blocks. According to the wire bunching device, wires can be bunched, on one hand, the wires can be tidily and orderly arranged together, disorder and intersection are reduced, the working efficiency is improved, the possibility of operation errors is reduced, on the other hand, the wires can be managed and operated more easily by operators, and the working efficiency is improved. The possibility of disorder of the lead in the plugging process is reduced, and the operation efficiency is improved.

The invention relates to an electric puncture injection device with a force feedback function, belongs to the technical field of medical instruments, and solves the problems that in the prior art, a puncture injection device is poor in puncture injection precision and prone to misoperation. The device comprises an injector, a fixing mechanism, a propelling device, a sensor unit and a driving device, wherein the injector can be fixedly mounted in the fixing mechanism; the fixing mechanism, the sensor unit and the driving device are connected in sequence; the sensor unit and the driving device are connected with an external controller; the propelling device is installed on the injector and used for driving the injector to complete injection or extraction. The functions of automatically monitoring the current puncture angle and evaluating whether puncture is in place or not are achieved, medical staff can quickly and accurately adjust the puncture angle to meet the requirement of the standard puncture angle, and therefore the operation precision is improved, the probability of misoperation is reduced, damage to a patient is avoided, and the safety of the puncture injection device is improved.

The utility model provides a bottom filling type powder packing machine, and relates to the technical field of packing machines, the bottom filling type powder packing machine comprises an adjusting mechanism, the adjusting mechanism comprises a bottom plate, an auxiliary mechanism is arranged on one side of the top of the bottom plate, a base plate is arranged on one side of the top of the bottom plate, and bolts are arranged in threaded grooves formed in the four corners of the base plate. Through the installed adjusting mechanism, the height of the stock bin can be conveniently adjusted according to the size and height requirements of different containers, it is ensured that the discharging opening of the stock bin corresponds to the container opening, and therefore the stock bin is suitable for the containers of different specifications, adaptability and flexibility of equipment are improved, and the production cost is reduced. Due to the design of height adjustment of the stock bin, the device is suitable for containers of different specifications, the situation of material scattering caused by mismatching of the height of the container and the height of the stock bin is avoided, operation errors in the production process are reduced, and meanwhile the discharging opening of the stock bin corresponds to the container opening; waste and loss caused by mismatching of the height of the container and the height of the stock bin can be effectively avoided.

The invention discloses a simulation test system and method for a vehicle control HIL rack, and relates to the technical field of vehicle simulation test. The simulation test system for the vehicle control HIL rack comprises a scene dynamics simulation module, the scene dynamics simulation module is in communication connection with a cluster control module and a scene display module, the cluster control module is in communication connection with a vehicle control HIL rack module, and the scene display module is in communication connection with the scene display module. The scene display module is in communication connection with the graphic workstation module and the vehicle control HIL rack module, and the graphic workstation module is in communication connection with the vehicle control HIL rack module. According to the invention, the problems that in an actual test, a complex driving environment and an emergency need a higher simulation capability, which proposes a higher requirement for the real-time performance and the processing capability of the system, and the data synchronization and transmission mode in the system is not described in detail are solved.

The utility model relates to the technical field of insulator production, in particular to a synchronous mold opening device for insulator molding, which comprises an upper mold and a lower mold, a molding cavity is arranged between the upper mold and the lower mold, and a material injection port is arranged on the upper mold; the forming mold is composed of a mold base and sliding mold cores, a pair of sliding mold cores are arranged on the mold base in a sliding opening and closing mode, the opening and closing process of the forming mold is completed through opening and closing of the sliding mold cores, and a mounting cavity used for containing an insulator mold blank is formed between the mold base and the pair of sliding mold cores; the lower mold is provided with two mold feeding guide rails, the forming mold is slidably placed on the inner sides of the two mold feeding guide rails, and opening and closing assemblies are arranged at the ends, away from the lower mold, of the two mold feeding guide rails and located on the outer side of the forming mold. According to the utility model, the two sliding mold cores on the forming mold can be automatically and synchronously opened and closed through the opening and closing assembly, and the high consistency and reliability in the opening and closing process of the mold can be effectively ensured, so that the forming precision and the product quality of an insulator are remarkably improved.

The utility model belongs to the technical field of petroleum workover equipment, concretely relates to a hydraulic tong station adjusting device and workover equipment, including the adjusting frame and the chassis, the longitudinal beam that sets up two hydraulic cylinders in the middle part of chassis is hinged, the piston rod end of two hydraulic cylinders all is hinged on the adjusting frame, the adjusting frame is driven its rotation around the axis of articulation shaft and drives hydraulic tong swing relative to the chassis by the piston rod telescopic drive of hydraulic cylinder, when the adjusting frame swings to the second end of chassis, and the limit support that this end of chassis is perpendicular fixed limits the contact. The utility model has realized the continuous, stable and automatic swing switching of hydraulic tong from the work position to the retreat position, reduced the strength of manual operation, improved the operation efficiency, reduced the operation error and the security risk caused by human factor, ensured that the hydraulic tong in non - working state, the equipment can absolutely stably keep in the retreat position, satisfied the extreme requirement of safety of wellhead unmanned operation.

The utility model relates to the technical field of medical instruments, in particular to a plugging device of a medical instrument, which comprises a box body, a lifting assembly is arranged at the bottom of an inner cavity of the box body and comprises a motor, the motor is fixedly connected to the bottom of the inner cavity of the box body, and the top of the motor is fixedly connected with a transmission end. The top of the transmission end is rotationally connected with a threaded rod, and the top of the threaded rod is rotationally connected with a circular shaft. According to the plugging device of the medical instrument, the design that the plugging port can move up and down can meet the connection requirements between different devices, medical staff can adjust the position of the plugging port according to needs so that the devices can be connected more easily and more accurately, the operation difficulty is reduced, the working efficiency is improved, meanwhile, the possibility of misoperation is reduced, and the practicability is high. The design that the plugging ports can move up and down can adjust the spatial layout between the devices according to the actual situation, so that the space utilization is optimized, and the interference and collision between the devices are reduced.

The invention discloses a chamfering device for nut machining, and relates to the technical field of nut machining equipment. The device comprises a base, a supporting table, a supporting frame, a clamping assembly and a chamfering tool bit assembly, the base is provided with the supporting table and a collecting drawer, the supporting table is matched with a transverse clamping plate assembly through a two-way screw and a sliding block, the supporting frame is provided with a longitudinal clamping assembly, and three-dimensional clamping is formed; the two ends of the base are connected with a lifting plate through a lifting mechanism, a chamfering tool bit is driven by a double-screw and servo motor to achieve multi-dimensional adjustment on the lifting plate, and a rotating motor drives the tool bit to machine. The clamping face is provided with a rubber anti-skid pad, a pressure sensor and a controller to integrally control the whole process. A three-dimensional clamping structure is adopted, clamping is stable, adaptability is wide, a tool bit can be accurately adjusted in multiple dimensions, the automation degree is high, the nut chamfering precision and production efficiency can be effectively improved, meanwhile, a waste collecting drawer and pressure sensing protection are arranged, the machining environment and product quality are optimized, and the nut chamfering machine is suitable for batch machining of nuts of various specifications.

This utility model discloses a pull-wire structure for a medical catheter, including a pull-wire frame, multiple sets of guide roller mechanisms, a roller body clamping mechanism, and a stabilizing mechanism. The multiple sets of guide roller mechanisms include a rotating frame and a bottom roller. The roller body clamping mechanism includes a clamping tube and a clamping rod. The stabilizing mechanism includes a bottom ball ring and a connecting plate. Through the coordinated action of the rotating frame, bottom roller, rotating roller, and fixed roller, precise positioning and tension control of the medical catheter are achieved. The rotating frame is symmetrically installed on both sides of the pull-wire frame and can be rotated and adjusted. It works with a limiting turntable to limit the rotation range and prevent excessive deformation of the catheter. The roller body clamping mechanism adopts a clamping tube and clamping rod design, which realizes quick and convenient installation and disassembly. The combination of the rotating sleeve, the rotating insert block, and the rotating push spring forms a self-locking mechanism. The rotating push spring pushes the rotating insert block into the groove on the side wall of the clamping rod to ensure a firm connection. The clamping rod can pass through different adjustment holes, providing multiple installation position options and enhancing the adaptability of the device.