134results about How to "Improve transmission stability" patented technology

The utility model provides an electrocardiogram electrode patch. The electrocardiogram electrode patch comprises a transmission part, a first attaching part and a connecting wire, the transmission part is used for being detachably connected with electrocardiogram detection equipment, and the first attaching part is used for being attached to a to-be-detected first target position; the transmission part is connected with the first attaching part through the connecting line; the transmission part comprises a shielding grounding contact and a first transmission contact; the first attaching part comprises a first flexible circuit board, and the first flexible circuit board comprises a first shielding layer and a detection contact layer; the connecting line comprises a signal transmission core and a second shielding layer wrapping the signal transmission core. The first shielding layer is connected with the shielding grounding contact through the second shielding layer, and the detection contact layer is connected with the first transmission contact through the signal transmission core. By means of the configuration, signals and interference signals can be transmitted independently, and the stability of electrocardiosignal transmission can be effectively improved.

This application provides a cross-application service scheduling and execution method and system in a vehicle environment, relating to the field of intelligent vehicle system technology. It acquires known service-related data of the vehicle system, as well as environmental perception data and user voice information of the vehicle environment; parses the user voice information to obtain target demand information, intent association information, and voice feature information; forms scene adaptation parameters based on environmental perception data; generates multiple second instruction transmission signals based on target demand information; detects each target demand information based on service-related data, intent association information, voice feature information, and scene adaptation parameters, obtains detection results, and combines these with the second instruction transmission signals to schedule and execute multiple cross-application services in the vehicle environment, generating service scheduling and execution results. This achieves dynamic coordination and orderly scheduling of cross-application services, improving the response accuracy and execution security of the vehicle system in complex driving scenarios.

The invention belongs to the technical field of synchronizers, and discloses a helicopter synchronizer and a using method thereof.The helicopter synchronizer comprises a driving device and a synchronous sleeve, a shifting fork is fixedly connected to the surface of the outer surface of the synchronous sleeve, a planet carrier is arranged on one side of the synchronous sleeve, a machine box shell is arranged on the other side of the synchronous sleeve, and the outer surface of the planet carrier is sleeved with combination teeth; the driving device is rotationally connected with the shifting fork through a second rotating shaft, the lower end of the synchronous sleeve is fixedly connected with a support, the lower end of the support is provided with a switch unit, the switch unit is electrically connected with the driving device, and the switch unit controls the synchronous sleeve to be meshed with or separated from the combination teeth, so that the helicopter tail rotor is driven to operate. The electric push rod is used for replacing hydraulic drive, hydraulic leakage is avoided, and the switch unit comprises a first switch and a second switch; electric signals are sent to the driving device through the switch unit, so that the working state of the driving device is controlled.

The utility model discloses an edge grinding device for processing a protective air-tight door, which comprises a working table, a first supporting piece is arranged on one side of the upper surface of the working table, the first supporting piece is rotatably connected with two groups of first belt wheels, one end of a shaft rod of one group of first belt wheels is connected with a driving assembly, and the two groups of first belt wheels are in transmission connection with an abrasive belt. The abrasive belt can be tensioned through the tensioning assembly, a limiting roller is arranged on the inner side of the abrasive belt, and the limiting roller can move in the horizontal direction through the moving assembly and can also be matched with the lifting assembly to push the abrasive belt to move downwards to make contact with the air-tight door. The limiting rollers can flexibly move in the horizontal direction and the vertical direction, so that accurate polishing of different positions and shapes of the air-tight door is achieved, the flexibility greatly improves the efficiency and accuracy of polishing operation, and due to the fact that the limiting rollers can freely move in the horizontal direction and the vertical direction, the polishing efficiency is greatly improved. Therefore, the device can meet the polishing requirements of the air-tight doors of different sizes and shapes.

The utility model discloses a kind of moulding press products moulds of convenient blanking, it is related to moulding press mould technical field, including adjusting box, several support columns are installed in the adjusting box bottom, the support column fixedly connected base, the stamping station is installed in the adjusting box surface, two lower moulds are equipped on the stamping station, upper mould is equipped above the lower mould, the base side surface is equipped with fixed frame, movement is driven by telescopic cylinder drive transmission rod, top platform and transmission seat, top platform is lifted up lower mould inner moulding press completed workpiece upward, simultaneously, transmission seat drives both sides connecting rod linkage, connecting rod drive rotating rod rotates around rotating shaft, rotating rod drives sector gear swing, make sector gear and rack mesh transmission, drive rack drives sliding block directional sliding along slide groove, sliding block further drives lower mould synchronous movement, this linkage process makes when top platform lifts workpiece, two lower moulds automatically separate workpiece to two sides, effectively avoid scratching workpiece surface to improve product quality.

The application relates to a gear expansion sleeve structure for coaxially fastening a gear on a connecting shaft, which comprises an inner pressure expansion sleeve, an outer pressure expansion sleeve and adjusting screws, the inner pressure expansion sleeve is axially symmetrically sleeved on the outer surface of the connecting shaft, the inner surface of the inner pressure expansion sleeve is gradually abutted against the outer surface of the connecting shaft; the outer pressure expansion sleeve is axially symmetrically sleeved on the inner diameter of the gear, and the end portion is abutted against the end surface of the gear, the outer surface of the outer pressure expansion sleeve is gradually abutted against the inner surface of the inner pressure expansion sleeve; the adjusting screws are provided with a plurality of end portions penetrating through the inner pressure expansion sleeve and the outer pressure expansion sleeve, and the inner pressure expansion sleeve is axially moved by being extruded through the axial movement of the adjusting screws, and is abutted against the inner surface of the outer pressure expansion sleeve and the outer surface of the connecting shaft, and the outer surface of the outer pressure expansion sleeve is extruded to the inner surface of the gear. The application realizes the stability between the gear and the connecting shaft, makes the component combination force more reasonable, and ensures the stability of the overall structure.

The utility model relates to permanent magnet motor technical field, concretely relates to a kind of permanent magnet motor suitable for oilfield pumping equipment, including speed reducer, the input end of speed reducer is fixedly connected with input shaft, the outside of one end of input shaft is fixedly connected with shaft sleeve, the outer wall of shaft sleeve is fixedly connected with rotor iron core, the outer wall of rotor iron core is fixedly connected with multiple equidistance evenly distributed permanent magnet, the outer wall of speed reducer near input shaft is fixedly connected with mounting flange, the side wall of mounting flange is provided with front end cover, and the side wall of front end cover is provided with machine shell.Compared with prior art, after the structure design of increasing air gap is used, even if slight axial displacement or radial swing occurs in the running process of rotor iron core, the interference between permanent magnet and stator iron core can be effectively avoided, and the reliability and adaptability of motor under high impact, high vibration working condition are improved.

This utility model discloses a coating machine for processing silicone protective film, including a coating frame, a transmission roller group, a coating seat, a pressing mechanism, a feeding end seat, a feeding mechanism, a discharge end seat, and a winding mechanism. The transmission roller group is arranged on the surface of the coating frame. A coating seat is arranged on one side of the top surface of the coating frame. A pressing mechanism is arranged on one side of the coating seat. A feeding end seat is installed on one side of the pressing mechanism. A feeding mechanism is arranged above the surface of the feeding end seat. A discharge end seat is arranged below one side of the outer wall of the coating frame. A winding mechanism is arranged above the surface of the discharge end seat. The feeding mechanism and the winding mechanism have the same structure. A traction roller is installed at one end of the coating frame. This silicone protective film coating machine improves coating efficiency and uniformity. The connection design between the various components is reasonable, facilitating disassembly and cleaning. In particular, the identical structure of the feeding mechanism and the winding mechanism makes maintenance simpler.

This utility model's electric mining truck gearbox features a three-speed design that allows selection of the most suitable gear based on different working conditions, optimizing power output to meet the power requirements of mining trucks, increasing the coverage of the motor's high-efficiency zone, improving the overall efficiency of the gearbox, and effectively reducing energy consumption. Based on the powerful performance provided by the multi-motor configuration, it enhances the flexibility and efficiency of the drive system. The front intermediate shaft assembly is coaxially connected to the output end of the power coupling assembly, and the rear intermediate shaft extends into the front intermediate shaft assembly and is coaxially aligned with the output end of the power coupling assembly, forming a compact parallel shaft structure. This fully utilizes the radial space of the gearbox and reduces its axial dimensions, thereby reducing the gearbox's volume and facilitating overall vehicle layout. Furthermore, the front and rear intermediate shaft assemblies share the radial and axial loads during transmission, reducing gear stress and improving the transmission stability and reliability under harsh working conditions, thus enhancing the gearbox's adaptability to various operating conditions.

The utility model belongs to the roll driving auxiliary structure technical field of roll grinder, especially relates to a numerical control roll grinder roll driving mechanism, include: positioning seat, connecting seat, gland and locking piece, be provided with positioning groove on the positioning seat, the positioning groove is the arc type structure that is suitable for the axle head outer profile of roll, the connecting seat sets up on the positioning seat, the connecting seat is coaxial distribution with the positioning seat, the positioning seat can be connected with the drive end on roll grinder head frame, the side of the gland close to the positioning seat is the arc type structure that is suitable for the axle head outer profile of roll, the gland can be along the radial of roll the axle head of roll is pressed in the positioning groove in the positioning seat, the locking piece can lock and unlock the gland with the positioning seat, compared with the prior art, the utility model solves the contact stress concentration, the back gap and inertia impact vibration and the higher problem such as cost of existing in prior art.

This invention belongs to the field of space laser communication and deep space exploration technology, and discloses an integrated detection device for space laser communication monitoring and interaction. The device includes a main body, on which are integrated a solar panel, a navigation imaging device, a communication antenna, a communication receiver, a radar, a landing support, and functional components for communication monitoring, environmental perception, and interactive operation. This invention forms a closed-loop system through electrical, signal, and mechanical connections, enabling simultaneous execution of multiple tasks, significantly improving the device's space operation efficiency, reducing the load pressure on space launch vehicles, and adapting to the space constraints of on-orbit operations. The communication antenna and receiver achieve bidirectional signal interaction through a high-speed laser communication module and are linked with the navigation imaging device and environmental sensors to ensure stable transmission and status monitoring of laser communication signals, which is beneficial for practical applications and operations.

The invention belongs to the technical field of flexible piezoelectric sensors, and relates to a carbon felt-hydrogel composite piezoelectric sensor and a preparation method thereof. The sensor comprises a piezoelectric sensing layer, a cross-scale dual-network hydrogel layer, an electrode layer, a leading-out wire and a packaging layer, the two cross-scale dual-network hydrogel layers are arranged on the upper side and the lower side of the piezoelectric sensing layer in a stacked mode to form a sandwich structure. The cross-scale dual-network hydrogel layer is an elastic hydrogel material formed by compounding a carbon fiber felt skeleton and a molecular-level network polymer, and the molecular-level network polymer penetrates through the interior and the surface of the carbon fiber felt skeleton and is formed by cross-linking and curing; the number of the electrode layers is two, and the two electrode layers are arranged on the outer sides of the two cross-scale dual-network hydrogel layers in a stacked mode respectively. The lead-out wire is electrically connected with the electrode layer; the packaging layer wraps the outer side of the electrode layer. According to the sensor, the mechanical property, the conductivity and the stability of the flexible piezoelectric sensor can be improved.

The utility model belongs to joint bearing technical field, specifically speaking is a kind of detachable rod end joint bearing, including fixed subassembly, connecting component and bearing assembly;Fixed subassembly contains the fixed seat of installation slot, three threaded holes and thread groove, bolt is tightened bearing outer ring in threaded hole, and threaded rod is fixedly connected in thread groove;Connecting component contains connecting rod and one end integrally formed double-threaded threaded tube, threaded tube outer thread cooperates with thread groove, inner thread cooperates with threaded rod, and three are coaxial;Bearing assembly contains outer ring, inner ring, ball and retainer, ball is rollingly engaged between two circular arc grooves.The utility model realizes that each component can be detached, and damaged component can be replaced separately, reduces maintenance cost, improves assembly flexibility and transmission efficiency, shortens maintenance downtime, and is suitable for engineering machinery, automation equipment and other transmission scenes.

The utility model discloses a coaxial cable with a coating structure, which comprises an elastic middle shaft sleeve, the side end of the elastic middle shaft sleeve is fixedly connected with first mounting rings, the first mounting rings are symmetrically distributed at the left end and the right end of the elastic middle shaft sleeve, a spring conductor is arranged in the elastic middle shaft sleeve, and the first mounting rings are fixedly connected with the spring conductor. The left end and the right end of the spring conductor are fixedly connected with butt joint conductors. The butt joint sleeves are connected with the elastic middle shaft sleeve in a sleeving mode, the butt joint sleeves are fixedly connected with the first mounting ring through bolts, and the butt joint sleeves are symmetrically distributed at the left end and the right end of the elastic middle shaft sleeve; according to the coaxial cable, the elastic middle shaft sleeve, the spring conductor, the butt joint sleeve, the insulated cable pipe and the bolt form an elastic tensile structure, so that the coaxial cable can cope with high-strength tensile force in the use process, the tensile capacity of the coaxial cable is enhanced, and the durability of the coaxial cable is ensured.

The application relates to the technical field of data transmission control, and discloses a DICOM image routing method and system based on port multiplexing. By binding a shared DICOM port and listening to a connection request, multiple backend DICOM receiving nodes can share a unified access port, a command set and a data set are selectively parsed according to a command type, a structured session context is constructed, routing judgment is upgraded from a traditional coarse-grained mode based on a source IP and a source port to a fine-grained mode based on protocol semantics, a routing decision module adopts a multi-field rule matching and index acceleration mechanism, can improve rule screening efficiency and reduce matching delay in a scene with more concurrent connections, and a routing optimization module dynamically evaluates in combination with running state information and transmission performance information of candidate target DICOM receiving nodes, so that a communication bottleneck can be avoided, in which a fixed transmission path is long-term concentrated on part of nodes.

The utility model discloses a driving host displacement protection device, which comprises a mounting plate, a driving host body, a limiting mechanism, a triggering mechanism and a transmission mechanism, long holes are symmetrically formed in four corner areas of the mounting plate, and the driving host body is fixed on the surface of the mounting plate through high-strength bolts penetrating through the long holes. The high-strength bolt is in clearance fit with the long hole to form a longitudinal adjusting structure; the limiting mechanism comprises limiting blocking strips symmetrically arranged on the left side and the right side of the bottom of the driving main machine body, the inner side walls of the limiting blocking strips are tightly attached to the side walls of the driving main machine body, and the stability of a high-hardness transmission chain wheel is enhanced through transverse constraint of the limiting blocking strips, longitudinal adjustment of long-hole bolts and accurate detection of an independent triggering mechanism. The problem of function failure caused by unreliable one-way detection and installation structure contradiction in the background technology is comprehensively solved, all-directional protection of displacement of the driving host is achieved, and the safety and the service life of equipment are remarkably improved.

The utility model relates to the technical field of medical treatment, in particular to a medical endoscope wireless isolation protection device which comprises a transmitting end and a receiving end. The transmitting end comprises an image sensor module, a high-speed serializer and a millimeter wave wireless transmitting module which are connected in sequence; the receiving end comprises a millimeter wave wireless receiving module, a high-speed deserializer, an image processing unit and a display storage module which are connected in sequence; a traditional copper cable is replaced by millimeter wave wireless transmission, high-speed data transmission is achieved, a physical electrical isolation barrier is established, a ground loop and electromagnetic interference of traditional wired transmission are eliminated, meanwhile, a high-speed serial interface is adopted, the number of data lines is reduced during transmission, and signal attenuation is reduced.

The application relates to a terminal and a protection circuit of a charging interface thereof. The circuit comprises a differential signal transmission module, a first end of the differential signal transmission module being used for connecting a differential signal receiving module of the terminal; a first surge suppression module, a first end of the first surge suppression module being connected to a second end of the differential signal transmission module, and a second end of the first surge suppression module being used for grounding; an AC / DC grounding module, a first end of the AC / DC grounding module being connected to the first end of the first surge suppression module and the second end of the differential signal transmission module respectively, and a second end of the AC / DC grounding module being used for grounding; and a second surge suppression module, the second surge suppression module being connected to a differential signal line. In this way, the surge protection capability of the charging interface of the terminal can be improved.

This utility model discloses a portable cable laying bracket in the field of cable laying technology, including a base. The base has a mounting cavity, within which a steering assembly is installed. The steering assembly is driven by a vertical rod. A mounting plate is fixed to the top of the vertical rod, and a housing is fixed above the mounting plate. A cable laying drive assembly is installed inside the housing. Connecting rods are connected to both sides of the cable laying drive assembly, and cable laying rollers are fitted onto the connecting rods. A limiting rod is provided at the end of the connecting rod near the cable laying drive assembly, and a limiting groove for the limiting rod to engage is provided on the same side of the cable laying roller. An external thread is provided at the end of the connecting rod, and a fastening nut is installed. A wire assembly is provided at the lower end of the vertical rod, positioned directly below the cable laying roller. This utility model achieves the orientation adjustment of the cable laying roller through a steering motor and improves laying efficiency through a double-sided synchronous cable laying structure, offering advantages such as convenient operation and high work efficiency.

This application provides a vocal practice assistance system based on vocal cord fatigue analysis, comprising: a surface-mounted electrode for attaching to a detection target to acquire electromyographic (EMG) signals; an EMG signal acquisition module for acquiring the EMG signals transmitted by the surface-mounted electrode and performing analog-to-digital conversion; a data transmission and reception module for sending the EMG signals acquired by the EMG signal acquisition module to a host computer and receiving relevant information; a preprocessing module for preprocessing the EMG signals transmitted by the data transmission and reception module to reduce noise; a signal separation module for separating the preprocessed EMG signals; a feature extraction module for acquiring the time-domain and frequency-domain features of the EMG signals; and a fatigue analysis module for linearly fitting the time-domain and frequency-domain feature curves and analyzing the vocal cord fatigue trend through the slope of the linear fitting equation. This system can monitor and analyze the degree of vocal cord fatigue in real time and provide a convenient and reliable vocal practice assistance device for vocal professionals.

This utility model discloses a novel tubular chain conveyor structure, relating to the field of conveying equipment technology. It includes a power unit, a conveying pipeline, a feed inlet, and a scraper device. The power unit is located at the far end of the feed inlet, and the conveying pipeline connects the two, forming the scraper running channel. The scraper device consists of a steel wire rope and multiple detachable scrapers mounted on its outer side. Driven by the power unit, the steel wire rope drives the scrapers to circulate within the pipeline. The scrapers adopt a split design, with the steel wire rope clamped by bushings, and supplemented by a diagonal friction-enhancing and positioning convex strip structure to improve connection reliability and anti-slip capability. This structure solves the problems of unstable scraper fixing, concentrated stress, and difficult replacement in traditional equipment, and has the advantages of convenient maintenance, stable operation, and wide applicability.

This utility model provides an electric hinge mechanism, including a fixed base and a connecting arm. A transmission component is hinged between the fixed base and the connecting arm. The transmission component includes a transmission rod assembly, a push rod, and a motor. The movable end of the transmission rod assembly is connected to the connecting arm, and the connecting end of the transmission rod assembly is connected to the push rod. The output shaft of the motor is equipped with a linkage component for moving the push rod linearly back and forth during operation or separating from the push rod when operation stops. The linkage component includes a clutch and a linkage assembly. The input end of the clutch is connected to the output shaft of the motor, and the output end of the clutch is connected to the input part of the linkage assembly. The output part of the linkage assembly is adapted to the push rod. The mechanism features a simple structure, convenient assembly, and the ability to open and close the door electrically or manually. It is easy to operate, has high transmission stability, and ensures product quality.

The utility model relates to a kind of miniature direct-current brushless motor, including shell, and shell is equipped with accommodating cabin;With the motor rear cover and motor front cover of accommodating cabin seal connection;Stator core is equipped in accommodating cabin;With the rotor assembly matched with stator core;PCBA board is equipped in accommodating cabin;Motor rear cover is equipped with electric connection interface, electric connection interface is operatively electrically connected to PCBA board;The center of motor rear cover is equipped with the stator support shaft extending into accommodating cabin, stator core is fixedly sleeved on stator support shaft;Motor front cover is equipped with insert sealing joint part, insert sealing joint part is used to insert into gear box and form sealed connection with gear box;The output end of the motor shaft of rotor assembly extends outward through insert sealing joint part.It replaces traditional motor.The miniature direct-current brushless motor can effectively solve the problems in the prior art through innovative structural design, improve the performance, reliability and service life of motor in smart home device.

The application relates to the technical field of video monitoring, and provides a remote video monitoring method and system, which comprises the following steps: after detecting a remote video monitoring instruction, sending a monitoring request signaling to a cloud signaling service; when the monitoring request signaling is a live broadcast request, sending a start live broadcast signaling to the cloud signaling service, connecting the cloud streaming media service, and waiting for receiving a remote audio and video stream returned by an audio and video collection end; after receiving an audio and video stream forwarded by the cloud streaming media service, sorting the audio and video stream according to a stream serial number to obtain a sorted audio and video stream, decoding the sorted audio and video stream according to an audio and video coding format to obtain image data, and rendering and playing the image data. The application improves the remote video monitoring effect across networks and platforms.

The utility model belongs to the technical field of stable transmission of middle motors of electric motorcycles, and particularly relates to a connecting mechanism for improving transmission stability of a middle motor of an electric motorcycle, which comprises a transmission rod, and a bottom plate is arranged at the bottom of the transmission rod; the top of the bottom plate is fixedly connected with a fixed block; a movable block is rotationally connected into the fixed block; the side wall of the movable block is fixedly connected with a first gear, and the side wall of the first gear is engaged with a transmission gear. A lifting block is fixedly connected between the two toothed belts; the interior of the lifting block is in threaded connection with a first lead screw. The torque motor is arranged to drive the lifting block, the clamping wheels are made to make contact with the side wall of the transmission rod respectively and extrude the transmission rod, finally the transmission rod is centered, the situation that the transmission rod is eccentric is avoided, the transmission effect of the middle motor of the electric motorcycle is improved, shaking is reduced, and meanwhile working noise is lowered.

The invention relates to a composite foil manufacturing system and application thereof.The composite foil manufacturing system comprises an unwinding system which is of a winding and unwinding integrated structure and is used for unwinding a multi-layer composite material which comprises a functional base material, and at least one side surface of the multi-layer composite material comprises an adhesive layer and a release film; the foil generating system comprises a cathode roller and is at least used for generating a foil layer; the compounding system is used for compounding the functional base material, the adhesive layer and the foil layer to prepare a composite foil intermediate; the composite foil passing rollers are at least used for conveying; the passivation system comprises a first passivation device containing a first passivation solution, and is used for performing first passivation treatment on the composite foil intermediate, and during the first passivation treatment, the single-side foil layer is used as a liquid layer to be in contact with the first passivation solution, or is further used as an isolating layer to isolate the first passivation solution from the adhesive layer and the release film on the back side; and the winding system is at least used for winding the composite foil. The system is low in equipment cost, small in occupied area, capable of achieving integration of foil generation and compounding and improving the oxidation resistance of the composite foil, and wide in application prospect.

The invention belongs to the technical field of thermally-induced positioning error compensation, and discloses a C-A-L-A algorithm-based real-time compensation method and system for thermally-induced positioning errors of a full-closed-loop feeding system, and the method comprises the steps: obtaining the real-time temperature of a heat source of the full-closed-loop feeding system; the full-closed-loop feeding system comprises a motor, a front / rear bearing pack, a lead screw nut pair and a guide rail sliding block pair, the real-time temperature is input into a thermally-induced positioning error model to obtain a thermal error, and the thermally-induced positioning error model comprises a convolutional neural network module, a long-short term memory network module and a mixed attention mechanism module; and the thermal error is input into a numerical control system, and the thermal-induced positioning error of the full-closed-loop feeding system is compensated in real time by shifting the mechanical coordinate origin through the EMZPS, so that the influence of the thermal-induced positioning error of the full-closed-loop feeding system on precision machining is inhibited, and the machining precision of a precision machine tool is improved.

The utility model relates to ball screw technology field especially relates to a ball screw pair. Include: screw body, nut cover, a plurality of ball and connecting channel, the first helical groove of axial helix is equipped with in screw body outside wall, the nut cover is covered in screw body outside, its inboard wall is equipped with the second helical groove corresponding with the first helical groove, two halves form helical channel, the ball rolls in the channel, the connecting channel is located between the adjacent first helical groove to connect two, and there is a pair of convex parts extending to the channel oppositely in its slot mouth, the convex part all is equipped with the arc part of adapting with the ball, reduces the deviation when the ball enters and exits the connecting channel through the convex part, avoids the track separation, the arc part provides the smooth transition path to guide the ball, and also limits its lateral swing, prevents the transmission jam and noise, can also disperse the contact stress, reduces the friction wear, finally realizes the stable circulation transmission of ball, promotes the transmission stability and component service life of ball screw pair.

The utility model relates to the technical field of machinery, and discloses a conveyor belt tensioning device of a multi-station press machine, which comprises a supporting seat, a servo motor, a bidirectional screw rod, a moving block, an adjusting frame, a tensioning roller and the like, the servo motor drives the bidirectional screw rod to drive the moving block to move horizontally, and the adjusting frame is connected with the moving block through a sliding rod. And the guide columns slide in the inclined guide grooves, so that the tensioning roller synchronously ascends and descends during horizontal movement, and dynamic adjustment of the tensioning degree of the conveying belt is achieved. When heavy objects are conveyed, the wrap angle between the conveying belt and the transmission roller can be increased by lifting the tensioning roller, and the friction force and the transmission stability are improved.