11332results about How to "Quick change" patented technology

The invention discloses hydraulic machine equipment suitable for die forging and blank making of various flanges and a forging method, and belongs to the technical field of flange production equipment.The hydraulic machine equipment suitable for die forging and blank making of various flanges comprises a base and further comprises a top plate, the top plate is arranged on the upper side of the base, and a guide column is arranged between the top plate and the base; the first hydraulic oil cylinder is fixedly arranged on the top plate, and a piston rod of the first hydraulic oil cylinder is connected with a pressure head; all positions of the forge piece are sequentially arranged on the lower side of the pressing head through the swing mechanism, all positions of the forge piece are conveniently and evenly forged, workers do not need to shake the forge piece back and forth by utilizing a clamp or a clamp on the side, and when the pressing head moves upwards every time, the die holder is automatically separated and is matched with the air spraying opening to blow away waste chips generated in the die holder during forging and pressing of the forge piece; and excessive scraps are prevented from being accumulated in the die holder and being matched with the forge piece gradually filling the die holder again, the follow-up processing time of the flange forge piece is shortened, and the flange processing efficiency is improved.

The invention belongs to the technical field of mowers, and particularly relates to a mowing machine carrying a modular intelligent trolley, the modular intelligent trolley comprises a walking driving module and a power module, the walking driving module and the power module are connected through a first quick release assembly, and the mowing machine further comprises a cutting panel and a connecting support; a cutting cutter head is arranged on the cutting panel, the first end of the connecting support is fixedly connected to the upper surface of the cutting panel, and the second end of the connecting support is connected with the connecting assembly in a quick-release mode through a second quick-release assembly. The mowing platform and the power source of the mowing machine can be rapidly replaced, and the mowing machine with the structure is high in universality, good in adaptability and convenient and rapid to use.

The invention discloses a double-platform automatic laser cutting machine, and relates to the technical field of cutting, the double-platform automatic laser cutting machine comprises a case, a base is fixedly mounted at the bottom of the case, a linear motor is fixedly mounted at the top of the inner wall of the case, a first machining table is fixedly mounted at the bottom of the inner wall of the case, and a second machining table is fixedly mounted at the bottom of the inner wall of the case; the protection device is arranged on the inner wall of the machine box and comprises a supporting frame, a laser cutting machine body, a cooling device, a hollow column, a hollow rod, a water inlet hole, a sealing plate, a pneumatic cylinder and a connecting pipe, the laser cutting machine body is driven to move through movement of a linear motor, and laser cutting can be conducted on materials through movement of the laser cutting machine body; the supporting frame is fixedly installed on the linear motor, the cooling device is fixedly installed at the bottom of the supporting frame, the hollow column is fixedly installed on the inner wall of the machine box, and the situation that the machining time of laser beams and materials is insufficient possibly due to the fact that the moving speed of the laser cutting machine body is too high is prevented.

The invention discloses an automatic single-yarn strength tester and a test method, and relates to the technical field of textile detection equipment, the automatic single-yarn strength tester comprises a single-yarn strength tester used for testing breaking strength, breaking elongation and breaking strength indexes of a single yarn and fiber pure spinning or blended yarn; and the translation mechanism is used for translating a plurality of distributed yarns and carrying out continuous high-efficiency test operation. According to the automatic single-yarn strength tester, a connecting piece is pulled through a tension spring, then a fastening piece and a limiting block are driven to conduct limiting installation on a limiting groove in a rubber pad, the rubber pad can be rapidly replaced after being abraded, the yarn clamping stability is ensured, and the testing accuracy is ensured; the good friction force of the clamping face can be recovered by replacing the rubber pad, it is ensured that the single yarn is tightly fixed in the clamping mechanism, the single yarn cannot move due to unstable clamping in the tensile test process, it is ensured that the test can be conducted smoothly, and the result is accurate.

The invention relates to the technical field of fault detection for a wireless communication network, and discloses a fault detection method for the wireless communication network. By collecting data of base station signal strength, network delay, data packet loss rate and user equipment signal quality, the problem of insufficient fault detection caused by a single index is solved. Through multi-dimensional data acquisition, the system can comprehensively evaluate network performance, the fault detection accuracy is improved, and different fault types can be effectively identified especially in a complex fault mode. By storing the data according to the time sequence, the problem of time sequence chaos is avoided, and accurate detection of time-varying faults is ensured. The comprehensive data vector generated by each time of sampling comprises a plurality of network performance indexes, so that the fault detection and positioning capability is improved. Abnormal values are eliminated through data preprocessing, the data quality is ensured, an accurate basis is provided for subsequent analysis, and the reliability of a detection result is ensured.

The invention discloses a flexible photovoltaic support aeroelastic response wind tunnel test platform and method, and the platform comprises a platform body which comprises a wind field simulation region and an experiment test region. A wind tunnel wedge is arranged at the front section of the incoming flow wind direction in the wind field simulation area; a flexible photovoltaic support model is arranged in the experimental test area; the flexible photovoltaic support model comprises a photovoltaic panel, a flexible photovoltaic panel support and a flexible photovoltaic panel base; the flexible photovoltaic panel base is fixed on the wind tunnel turntable; the photovoltaic panel is fixed on the flexible photovoltaic panel base through the flexible photovoltaic panel bracket; steel cables penetrate through the interior of the photovoltaic panel, and the steel cables on the two sides are connected with an electronic tension meter and a tightening device. Through the platform and the method, a real complex wind field environment can be simulated, dynamic response data of the support under different working conditions can be obtained, and a scientific basis is provided for design optimization and wind resistance improvement of the flexible photovoltaic support.

The invention discloses a non-microwave electromagnetic field measurement method and device based on an NV color center, and relates to the field of quantum precision measurement, and the device comprises a magnetic field generation structure, a laser excitation structure, a color center selection structure and a fluorescence detection structure. The magnetic field generation structure is used for applying a magnetic field with known direction and size to the diamond; the laser excitation structure generates laser, and the laser irradiates the diamond containing the NV color center; the color center selection structure performs micron-level focusing on an objective lens by using a three-axis displacement table and selects a diamond NV color center corresponding to the size and direction of a magnetic field; the fluorescence detection structure collects fluorescence radiated by the NV color center and converts the fluorescence into an electric signal for measurement. According to the invention, by applying the magnetic field with the size of 1024G along the NV axis and the included angle within 0.1 degree, the detection of the target electromagnetic field is realized by utilizing the sensitivity to the transverse component of the electromagnetic field under the strong magnetic field; the invention discloses a non-microwave electromagnetic field measurement method and device based on an NV color center, and is suitable for magnetic field and electric field measurement of an all-optical device without a microwave assembly.

The invention discloses an electrical cabinet with strong anti-electromagnetic interference capability, and relates to the technical field of electrical cabinets, the electrical cabinet comprises a cabinet body and further comprises a protection device, a sealing door slidably penetrates through the right side of the cabinet body, a moving hole is formed in the front side of the sealing door, and a limiting hole is formed in the front side of the sealing door. The protection device comprises an operation hole, an operation rod, a T-shaped rod, a protection rod, an L-shaped plate, a filter, a reset spring and a protection disc, the sealing door moves to enable the limiting hole to be aligned with the T-shaped rod, and after the T-shaped rod is aligned with the limiting hole, the T-shaped rod moves in the direction away from the protection rod under the elastic force effect of the reset spring; the T-shaped rod moves in the direction away from the protection rod to make contact with the inner wall of the limiting hole and restore limiting of the sealing door, the sealing performance of the cabinet body is kept through the L-shaped plate, the influence of external electromagnetic interference can be prevented, the equipment failure rate is reduced, and therefore the usability of the whole system is improved.

The invention discloses a multi-agent cooperative control system based on multi-mode brain-computer interface-visual tracking, and the system comprises the following modules: a signal collection and processing module which employs an 8-lead electroencephalogram cap to collect electroencephalogram original data, selects occipital region parts (PO7, PO8, P3, P4, Pz, O1, O2 and Oz) as an electroencephalogram data collection region, and carries out the EEG data collection; the feature extraction and classification module is used for extracting SSVEP signal features by using a space-time convolutional network, optimizing classification precision in combination with an integrated learning strategy, extracting EOG signals based on a Transform model, integrating an LMS adaptive filter and denoising the EEG signals in combination with wavelet transform, expanding the frequency tracking range of the adaptive filter, and reducing signal loss to the greatest extent; the cooperative control strategy design module is used for mapping the electroencephalogram signals into control instructions of different intelligent agents, and cooperative control over the unmanned aerial vehicle and the trolley is achieved; and the target detection and tracking module is used for optimizing an unmanned aerial vehicle visual tracking system based on a PP-YOLOE model and realizing accurate tracking and automatic adjustment of the trolley.

The invention discloses an intelligent bridge shock isolation device with a replaceable sensor and an installation method.The device comprises a connecting module, the connecting module comprises a support bottom connecting plate (7) and a sliding module arranged at the top of the support bottom connecting plate (7), and the sliding module comprises an upper friction plate (1), a lower friction plate (4) and an arc-shaped sliding block (3); the data measurement module comprises a sensing force holding layer (5) arranged at the bottom of the lower friction plate (4), the sensing force holding layer (5) is provided with a sensor module (8), and the replacement module comprises a sensor assembly layer (6), an internal wedge block (9) and an external wedge block (10). A sliding friction pair is jointly formed by the connecting module and the sliding module, so that the good damping performance of the support is achieved, meanwhile, the stress state of a bridge is monitored in real time through the data measuring module, intelligent monitoring and jacking installation and rapid replacement of the sensor module are achieved, and the problem that a traditional bridge support cannot be rapidly and safely replaced is solved.

The invention belongs to the field of machine tool machining, and relates to a tooth turning machine tool rest main shaft split type automatic tool changing mechanism which comprises a split type main shaft, a tool handle, a disc spring, a pull claw and a detection device. The split main shaft comprises a first main shaft and a second main shaft which are connected through a loose screw; the cutter handle is connected with the first main shaft through a pull claw, the pull claw tensions a blind rivet on the cutter handle through tensioning force generated by a disc spring, and the conical surface of the cutter handle is attached to the conical surface of the second main shaft; the detection device comprises a first detection switch and a second detection switch and is used for detecting whether the cutter handle is installed on the second main shaft or not. By adopting the split type main shaft design, even under the condition that the cutter is locked, the cutter handle can be easily ejected out by loosening the connecting screw, and the main shaft does not need to be integrally disassembled; by arranging the detection switch and the detection point used in cooperation with the detection switch, whether the tool is installed on the main shaft or not can be accurately judged, signal feedback is provided for the automatic tool changing process, and the accuracy and safety of the tool changing action are ensured.

According to the unmanned transport plane with the separable cargo hold, rapid replacement of different aviation task cabins can be achieved, a plane body longitudinal beam serves as a structure for bearing the overall weight of the plane, a locking structure used for locking the separable cargo hold is arranged at the bottom of the plane body longitudinal beam, and the separable cargo hold is of a universal module structure. The locking structure is opened after the separated cargo hold is supported, the airplane core structure composed of the airplane body longitudinal beams, the front airplane body, the rear airplane body and the airplane wings and the separated cargo hold are respectively replaced with different cargo holds, and the cargo hold structures of the same specification for bearing different tasks are replaced, so that high freight efficiency is achieved; the fuselage longitudinal beams are adopted as main bearing beams, the front fuselage and the rear fuselage only play a role in rectification and do not participate in bearing, the structural weight of the aircraft is reduced to the maximum extent, the loading capacity of the aircraft is greatly improved, meanwhile, standardized, universal and modular accessories are adopted, and all large components have interchangeability, so that the economical efficiency of the aircraft is improved.

The invention relates to the technical field of pressure vessel machining, solves the technical problems that in the polishing process, a pressure vessel cannot be well fixed, consequently, the pressure vessel is prone to shaking, and the polishing effect on a welding seam is affected, and particularly relates to an automatic polishing device for the welding seam of the pressure vessel. Comprising a bottom plate and a pressure vessel main body needing to be subjected to weld joint polishing, a fixing mechanism used for fixing the pressure vessel main body is arranged on the bottom plate, two clamping plates can be driven to move towards the middle position to clamp the pressure vessel main body through the arranged clamping mechanism, meanwhile, a plurality of semi-cylindrical rubber cushions are arranged on the clamping plates, and the pressure vessel main body is clamped through the rubber cushions. In the moving process of the clamping plates, the rubber cushions can make contact with the surface of the pressure container body and deform, so that the rubber cushions are better attached to the surface of the pressure container body, the friction force is further increased, the two ends of the pressure container body are fixed, and the pressure container body cannot move or rotate; and subsequent grinding is more convenient.

The upper water outlet shower with the filter and the handheld shower comprises a bent arm, a top spraying shower and the handheld shower, a water inlet channel is formed in the bent arm, a supporting arm is connected with the bent arm, a water passing channel is formed in the supporting arm, and the water passing channel is communicated with the water inlet channel; the shower placement part is installed on the supporting arm, the handheld shower can be placed on the shower placement part, the top spraying shower is movably connected with the supporting arm, a water inlet port of the top spraying shower is communicated with the water passing channel, and a water inlet port of the handheld shower is communicated with the water inlet channel; and the filtering assembly is installed on the supporting arm, the filtering assembly is connected into the water passing channel, and water flow of the water passing channel is filtered through the filtering piece and then flows into the top spraying shower head and / or the handheld shower head. The shower placing piece is arranged on the supporting arm to place the shower, the shower placing piece and the supporting arm are both connected with the supporting arm to be installed on the bent arm, the handheld shower does not need to be independently installed on the wall face, and the overall installation steps are simplified. And the filtering assembly is connected to a water flow path of the water passing channel so as to adapt to areas with poor water quality.

The invention relates to the field of grinding equipment, and discloses a forging external grinding device which comprises a workbench, a moving mechanism is arranged on the workbench, a supporting seat is arranged on the moving mechanism, a coarse grinding wheel and a fine grinding wheel are rotationally connected to the supporting seat, and a grinding driving motor and a switching assembly are arranged on the supporting seat. The grinding driving motor drives the coarse grinding wheel or the fine grinding wheel through the first belt, and the switching assembly is used for switching the first belt to drive the coarse grinding wheel and the fine grinding wheel. The grinding device has the effects that the corresponding grinding heads can be conveniently and rapidly replaced according to the requirements of rough grinding and accurate grinding, the workload of workers is relieved, and the working efficiency is improved.

The invention discloses forging machining equipment and a forging machining method, and belongs to the technical field of forging machining. The forging machining equipment comprises a rack, a machining mechanical arm is arranged on the rack, the forging machining equipment further comprises a working ring, a first connecting block is arranged between the working ring and the rack, a positioning seat is arranged in the working ring, and a second connecting block is arranged between the working ring and the positioning seat; the discharging opening is formed in the middle of the positioning seat, and a plurality of supporting blocks are evenly arranged in the discharging opening in the circumferential direction; the clamping mechanism comprises a plurality of clamping assemblies and a driving assembly, the clamping assemblies are circumferentially and uniformly arranged on the working ring, and the driving assembly is arranged on the working ring and used for driving the clamping assemblies to work; according to the device, various irregular forgings can be conveniently and rapidly clamped and positioned, the clamping effect is guaranteed, so that the working efficiency and machining precision of the forgings are improved, meanwhile, the machined forgings can be rapidly replaced and blanked, the operation steps of workers are reduced, and the machining efficiency of the forgings is further improved.

The invention relates to the technical field of graphite screening, in particular to a screening device for graphite production, which comprises a screening box, a dispersing and blocking assembly, a driving assembly, a drawer assembly, a screen, a moving assembly, a brushing assembly, a first knocking assembly, a second telescopic piece, a second knocking assembly, a first linkage assembly and a second linkage assembly. According to the invention, the impact force of graphite on the screen mesh can be reduced so as to reduce the damage of the graphite on the screen mesh, the service life of the screen mesh is prolonged, meanwhile, the graphite can be uniformly dispersed on the screen mesh so as to improve the utilization rate of meshes in the screen mesh, the screen mesh can be brushed, the screen mesh is prevented from being blocked after being used for a long time, the screening efficiency is ensured, and the service life of the screen mesh is prolonged. And the screen cloth can be inclined, so that graphite on the screen cloth can be rapidly discharged, the subsequent graphite screening effect is improved, the screen cloth can be rapidly replaced, and the working efficiency is improved.

The invention discloses a liquid-cooled dynamic battery cluster temperature management protection device and a temperature control method, and relates to the field of battery temperature control, and the temperature management protection device comprises a liquid cooling control terminal which is used for butting and integrating an energy storage end of a plurality of battery units and providing circulating liquid cooling synchronous with the starting of the battery units, control instructions are edited, received and issued; the data acquisition module is used for dividing a liquid cooling circulation route into a plurality of sections and detecting temperature data of liquid in different sections in the charging and discharging state process of each battery unit; the temperature deviation of each section is identified in real time, a problem area is rapidly positioned, more comprehensive and accurate temperature distribution can be obtained, abnormal conditions are helped to be identified and positioned in real time, the response speed to transient load change is improved, it is ensured that the battery is kept in a safe temperature range in the rapid charging and discharging process, and the battery quality is improved. And fault hidden dangers caused by insufficient temperature monitoring capability are avoided.

The invention provides a bearing device for MOS transistor testing, and relates to the technical field of bearing devices for MOS transistor testing, the bearing device comprises a shell, a heat dissipation window is arranged on the side face of the shell, and a control panel is fixedly installed on the upper surface of the shell, in the bearing device, by designing a limiting mechanism, the device can precisely limit and fix MOS transistors of different sizes and models. Through the combination of the sliding rod, the threaded rod and the lifting plate, the clamping plates can be flexibly adjusted according to the size of the MOS tube, diversified applicability is achieved, the device is not only suitable for elements with standard specifications, but also can be well compatible with elements with non-standard sizes, the compatibility and practicability of the device are remarkably improved through the design, the application range of the device is widened, and the application range of the device is widened. The clamping stability and the operation precision are ensured by using the bidirectional screw rod, so that the MOS tube can be firmly clamped in the operation process, the possibility of displacement or looseness is reduced, and the reliability and the consistency of the test are ensured.

The invention provides an inner hole grooving device and a using method. The inner hole grooving device comprises a grooving device body installed on a machine tool tailstock, the grooving device body is coaxial with a workpiece installed on a machine tool chuck, and a plurality of sliding supporting bases are arranged between the grooving device body and a machine tool sliding rail; the grooving device comprises a shell supporting assembly and an internal feeding assembly, the internal feeding assembly is located in the shell supporting assembly and slides, a cutting tool moving in the radial direction is arranged at the end of the shell supporting assembly, and a tool in the cutting tool is used for cutting the inner wall of the workpiece; the cutting tool is located at the end of the grooving fixing cylinder through a clamping groove structure and slides in the radial direction, a dovetail wedge block is fixedly arranged on the bevel edge of the right-angle driving plate, a dovetail sliding groove is formed in the bottom of the cutting tool, and the dovetail wedge block abuts against the interior of the dovetail sliding groove. According to the inner hole grooving device, through the precise design and the efficient control system, the machining precision and stability are improved, the operation and maintenance process is simplified, and the overall production efficiency and product quality are improved.

The invention relates to the technical field of low-temperature casting, and discloses an automobile aluminum alloy hub low-temperature casting device which comprises a casting table, a supporting frame is fixedly connected to the upper surface of the casting table, a die-casting machine is fixedly connected to the upper surface of the supporting frame, and a linear motor is fixedly connected to the upper surface of the casting table. According to the hub casting device, the movable clamping block cannot be continuously fixed to the pressing plate after being not locked by the plug pin, so that the upper die base can be rapidly detached, then the upper die bases with different diameters are replaced according to the inner diameter of a hub needing to be cast, and the hub casting efficiency is improved. The upper die base can be rapidly installed on the pressing plate by pushing the plug pin to be inserted into the movable clamping block, the applicability of the device is improved, the use convenience is also improved, the movable lower die plate is pulled away from the clamping frame in advance, and the situation that the machining efficiency is reduced due to the fact that the upper die base cannot take up the hub blank due to adhesion of the hub blank and the movable lower die plate can be avoided.

The utility model relates to an embossing device for processing paper products, and aims to solve the technical problems that when the existing embossing device processes the paper products, the paper products conveyed by a conveyor belt are easy to generate wrinkles, so that the embossed paper products are wrinkled, patterns are uneven, and the embossing quality of the paper products is influenced. A belt conveyor is mounted in an inner cavity of the U-shaped table, a rack is mounted at the top of the U-shaped table, a driving mechanism is mounted at the top of the rack, and an embossing mechanism is mounted on the inner side of the rack; electric telescopic rods are installed on the two sides of the top of an inner cavity of the rack correspondingly, driving motors of the two electric telescopic rods are fixedly connected with adjusting plates correspondingly, connecting blocks are fixedly connected to the two sides of one ends of the outer sides of the two adjusting plates correspondingly, and the opposite ends of the two sets of connecting blocks are rotationally connected with connecting rods through connecting shafts correspondingly. The embossing device has the advantages that the part, needing to be embossed, of the paper product is tightened, so that the paper product is prevented from wrinkling before being embossed, and the embossing quality of the paper product is improved.

The invention discloses a manufacturing method for an automatic polishing system for a complex special-shaped thin-wall skin. The manufacturing method comprises the following steps that (1) a polishing head module is designed; (2) a six-axis robot is arranged; (3) designing a supporting vehicle module; (4) planning a polishing path; and (5) starting a polishing working procedure. The intelligent machining design concept is added, the force control technology, the vision technology, the software technology and the like are fused in grinding equipment, the automatic robot technology, the grinding automatic alignment planning technology, the automatic photographing positioning technology and the like are specifically included, and automatic grinding of the thin-wall skin of the aviation product is achieved; in the grinding process, attitude force / position mixed control compensation is carried out according to contact force of the tail ends of the grinding heads and product contact parts, accuracy and stability of the contact force of the grinding heads are guaranteed, meanwhile, self-adaptive stretching and retracting can be carried out according to contour features of the surfaces of the products, rapid movement between the grinding heads and the contact surfaces is achieved, and the grinding efficiency is improved. And the grinding head is quickly replaced and mounted through the design of a positioning buckle.

The invention discloses an automatic tobacco harvesting device, and relates to the technical field of tobacco harvesting, the automatic tobacco harvesting device comprises a vehicle body and a guide box, a storage box is fixedly arranged on the vehicle body, a cutting disc is rotatably arranged in the guide box, and a rotating shaft at one end of the cutting disc is fixedly connected with the output end of a first motor; a supporting rotating disc is fixedly arranged on a rotating shaft at one end of the cutting disc, conveying belts are symmetrically arranged in the conveying box, a plurality of fixed blades are fixedly arranged on the conveying belts at equal intervals, clamping belts are symmetrically arranged at one end of the conveying box, and a bundling rod is arranged between the interior of the storage box and one ends of the two clamping belts; a supporting mechanism is arranged in the storage box, and a conveying mechanism is arranged in the containing box. Tobacco plants can be arranged in order by arranging the supporting rotating disc, the conveying belt and the clamping belt, and by arranging the placing frame, the bundling rod loaded with the tobacco plants can be conveniently supported and fixed.

The high-fine crusher comprises a machine frame, a main machine and a motor are arranged on the machine frame, the main machine comprises a machine shell with a crushing cavity, a feeding port communicated with the crushing cavity is formed in the upper end of the machine shell, a discharging port communicated with the crushing cavity is formed in the lower end of the machine shell, and an impact plate is arranged on the inner wall of the crushing cavity. A side lining plate is arranged on the side wall of the machine shell; a rotor part is arranged in the crushing cavity and comprises a main shaft connected to the side wall of the machine shell, a hammer head located in the crushing cavity is arranged on the main shaft, a flywheel is arranged at one end of the main shaft, and a belt pulley is arranged at the other end of the main shaft; and the belt pulley is connected with a motor through a belt. The crusher has the advantages that the structure is compact, the machine rigidity is high, the hydraulic hoist shell is adopted, equipment can be conveniently opened for maintenance, the hammer head is high in hardness, combined design is adopted, rapid replacement is convenient, the crusher can give an alarm automatically, the safety is better, and the intelligence is higher.

The invention discloses a numerical control high-precision numerical control tool for machining automobile parts, and relates to the technical field of numerical control tools, the numerical control high-precision numerical control tool comprises a tool apron, and a tool bit and a clamping block which are mounted in the tool apron, and further comprises a blade mounted at the end part of the tool bit, and mounting grooves for mounting the tool bit and the clamping block are formed in two sides of the tool apron; a mounting shaft is fixedly mounted in the middle of the tool apron, and a flow guide assembly used for conveying cooling liquid is mounted in the mounting shaft and the tool apron. The tool apron is arranged, the tool bits are mounted on the two sides of the tool apron through the mounting grooves, the flow guide assembly is arranged in the tool apron, the conveying assembly is arranged in the tool bits, and the flow guide assembly and the conveying assembly can achieve conveying and guiding of cooling liquid so as to achieve spraying of the cooling liquid in the cutting position; and conveying of cooling liquid is completed in the tool apron and the tool bit, the situation that cutting operation is affected by an external nozzle can be effectively avoided, and therefore convenience of numerical control machining is effectively improved.

The invention discloses an efficient spraying device for waste gas treatment, and relates to the technical field of waste gas treatment, the efficient spraying device comprises a spraying tower and a spraying assembly, and further comprises an activated carbon replacing mechanism arranged on the spraying tower and used for replacing saturated activated carbon in the spraying tower, the activated carbon replacement mechanism comprises a feeding assembly for adding activated carbon, an anti-accumulation assembly for preventing the activated carbon from being accumulated together in the adding process, and an activated carbon cleaning assembly for cleaning the saturated activated carbon after replacement out of the spray tower. New activated carbon in the activated carbon storage box is conveyed into the activated carbon placement groove through the auger conveying screw rod, so that on the premise of not interrupting the waste gas treatment process, the saturated activated carbon is quickly replaced, the time and steps required for replacing the activated carbon are remarkably reduced, the continuity and efficiency of overall waste gas treatment are improved, and the waste gas treatment efficiency is improved. And waste gas treatment interruption caused by replacement of activated carbon due to shutdown is effectively avoided.

The embodiment of the invention provides a software test recommendation method and device, equipment and a storage medium. The method comprises the following steps: performing feature extraction on a technical document of to-be-tested software to obtain test features of the to-be-tested software; according to a similarity score between the test feature and a historical test feature corresponding to a historical test demand, screening out a target historical test demand meeting a condition from the historical test demand; performing feature screening on the test features corresponding to the target historical test requirements based on an association rule analysis algorithm to obtain target test features; performing clustering processing on the target test features based on a preset clustering dimension to obtain software test suggestion information under the preset clustering dimension; and recommending the software test suggestion information to a user. According to the embodiment of the invention, quality fluctuation caused by experience and ability level differences of testers can be avoided, the systematicness and consistency of test suggestions are improved, and the coverage of the test suggestions is improved.

The invention provides a mechanical in-situ test experimental device with a multi-working-condition simulation coupling effect, and belongs to the field of mechanical testing. The problems that an existing mechanical property testing device can only simulate single environment characteristics and cannot test various mechanical properties are solved. Wherein the linear sliding table is connected with the mobile platform through the mounting bracket, the upper end of the connecting rod is fixedly connected to the mobile platform, and the lower end is positioned in the box body; any one of one of the stretching and fatigue experiment clamp, the bearing platform and the bending pressing table can be mounted on a bottom plate of the box body, and any one of the other stretching and fatigue experiment clamp, the compression pressing head, the hardness measuring head, the bending pressing head and the impact testing head assembly can be mounted at the lower end of the connecting rod; the environment simulation assembly can simulate the temperature, humidity and salt mist environment of actual working conditions in the box body; the in-situ monitoring assembly can be used for monitoring the to-be-tested sample in the box body in real time. The device can simultaneously simulate a plurality of actual working conditions and coupling working conditions of actual loads, and can complete a plurality of mechanical property tests.