276 results about "Synchronism" patented technology

The utility model relates to the technical field of circuit breaker structures, in particular to a rotating shaft structure of a double-breakpoint molded case circuit breaker, which is characterized in that a rotating shaft main body is of an integral structure design, a contact groove is formed in the rotating shaft main body along the radial direction, the middle part of a moving contact is inserted into the contact groove, and two ends of the moving contact penetrate out along an opening of the contact groove; the static spring shaft and the moving spring shaft are used for being in butt joint with the static contact, the static spring shaft and the moving spring shaft are located on the two sides of the moving contact respectively, the two ends of the contact spring are connected to the static spring shaft and the moving spring shaft respectively, and the moving spring shaft is pulled through elastic tension of the contact spring so that the two sides of the moving contact can abut against the inner side wall of the contact groove respectively. Due to the integral structure design of the rotating shaft main body, the three-phase synchronism of the molded case circuit breaker is consistent, the limit breaking capacity and the operation breaking capacity of the circuit breaker are greatly improved, the safety and the reliability of the circuit breaker in operation are improved, and the electrical life of the circuit breaker is prolonged.

The invention discloses a pipe network flow closed-loop regulation-oriented double-body valve coordination control system and method, and relates to the technical field of data acquisition control. The double-body valve coordination control system and method for pipe network flow closed-loop regulation comprises the following steps that S1, a double-body valve data set is collected to be subjected to segmented scaling normalization processing; s2, fragmented recombination and time sequence consistency screening are carried out, and quality scoring is carried out; s3, a double-body valve adjusting instruction is generated for combined control, and a control strategy state is output; and S4, establishing an associated index for each sampling time slice, and performing integrated version archiving and playback recalculation. The synchronization, stability and traceable operation and maintenance capability of cooperative closed-loop adjustment of the double-body valve are effectively improved, and the problems of asynchronization and mutual interference in cooperative control of the double-body valve are solved.

The invention discloses a periodic synchronous position interpolation control method and system for a servo driver, and relates to the technical field of servo control, and the method comprises the steps: receiving a synchronous position instruction at a fixed bus period, and recording a theoretical / actual arrival timestamp of the synchronous position instruction; converting the instruction into a position increment and storing the position increment into a buffer; calculating a cache saturation index reflecting instruction stream supply and demand balance in real time; based on the index and the change trend, dynamically calculating and smoothly adjusting a next position loop sampling period through a feedback control model; position loop processing is triggered in the post-adjustment period. According to the invention, by monitoring the instruction stream state and adaptively adjusting local processing, the influence caused by master and slave clock skew and network jitter is compensated, and continuous and uniform instruction input is ensured to be always obtained by a position ring, so that high-stability and high-precision motion control under bus communication is realized, and the anti-interference capability and the synchronization performance of the system are improved.

The invention relates to an overall system conversion process after accumulative slippage of a space pipe truss, and relates to the technical field of steel structure construction. According to the process, a supporting bracket and a jack system are installed, and a mode of combining graded unloading and lateral pushing is adopted, so that accurate conversion of a truss from a temporary supporting state to a design position is achieved. The method comprises the key steps of step-by-step unloading with 20 mm as a circulation unit, jack bottom supporting height adjustment, hydraulic synchronous control and lateral limiting measures. The method solves the problems of poor synchronism, stress concentration and the like in a traditional unloading method, has the advantages of high in-place precision, high in safety, high in construction efficiency and the like, and is suitable for construction of a large-span space pipe truss structure.

The invention discloses an encryption burst communication receiving method based on an FPGA, and belongs to the technical field of burst communication. According to the invention, the problems of poor synchronization performance and poor anti-interference capability at the receiving end in the existing method are solved. According to the method, the carrier synchronization range is expanded by introducing the pilot frequency to enable the synchronization heads to be '1', the limitation that a conventional frequency offset estimation algorithm can only work under the condition that the Doppler frequency shift is smaller than 0.5 times of the symbol rate is broken through, and the capacity of the system for adapting to the high-dynamic environment is improved. A spreading code continuous tracking working mode is designed, coarse estimation and synchronization are carried out in a frame header part, spreading codes are still adopted in an information part, and continuous tracking is carried out, so that the system can adjust the phase of the spreading codes in real time in the whole frame to solve the problem of phase error accumulation caused by adopting a low-precision clock; the problems that when one frame of data at the sending end is long, the synchronization performance is reduced when a low-precision clock is adopted, and even effective synchronization cannot be achieved are solved. The method can be applied to the field of burst communication.

The application provides a rotating mechanism and a sample detection device, and relates to the field of industrial quality inspection.The mechanism comprises a driving member, a fixing member, a profile member, a rotating assembly and a detection table; the fixing member is connected with the driving member and is driven by the driving member to rotate around a predetermined axis; the profile member has a preset profile surface on the side facing the rotating assembly, which is used to provide motion trajectory guidance for the rotating assembly; the rotating assembly is connected to the fixing member and comprises a follower, a mounting seat and a transmission rod; the detection table is fixedly connected with the transmission rod and is used to place a to-be-detected object; wherein, the follower is fixedly connected with the mounting seat and is in sliding cooperation with the profile surface; the transmission rod penetrates through the mounting seat and is threadedly connected with the mounting seat, so that when the follower slides relative to the profile surface, the detection table rotates.The sample detection device comprises the above rotating mechanism.The rotating assembly has high reliability and good synchronism while improving the comprehensiveness and efficiency of detection.

The utility model relates to the technical field of jaw crusher bodies, and discloses a crushing and screening synchronous jaw crusher which comprises a jaw crusher body, a screening mechanism is arranged below the jaw crusher body, and a damping mechanism is arranged below the screening mechanism; the screening mechanism comprises a driving part and a screening part; the screening part is located on the right side face of the driving part. The damping mechanism comprises a fixing part and a damping part; the damping part is located on the inner side face of the fixing part. According to the screening mechanism, a motor in a driving part is utilized, the motor is started to drive a cam, so that the cam is matched with a screening box, the screening box is driven to swing on the surface of a sliding rod under the action of a sliding plate, screening is carried out, fine particles fall into a collecting box, the collecting box is pulled to slide in a sliding groove, and pulling-away is carried out; and materials with small particle sizes on the jaw crusher can be screened out in time to be classified and collected, so that subsequent processing is facilitated.

The utility model relates to the technical field of label detaching machines, in particular to a label detaching machine convenient to operate, which comprises a workbench, a label pressing assembly, a label detaching assembly and a transfer assembly, according to the label detaching machine convenient to operate, a traditional label detaching machine needs to manually connect materials for blanking, and the label detaching machine achieves automatic clamping and transferring of the materials through the arrangement of the transfer assembly. The first propeller pushes the clamping assembly to move, a gear in the clamping assembly is matched with a rack, a clamping plate is driven to be opened and closed, and the ejected trademark is automatically clamped. The second propeller can finely adjust the clamping force of the clamping plate through the shifting block, manual operation is not needed, the labor intensity is reduced, and the working efficiency is improved; the meshing structure of the gear and the two sets of racks ensures the synchronism and stability of opening and closing of the clamping plates, so that the clamping plates can uniformly clamp materials. Friction pads are arranged on the sides, close to the center of the box body, of the clamping plates, friction force between the clamping plates and the materials is increased, and the materials are further prevented from sliding off in the clamping and transferring process.

The invention belongs to the technical field of quality detection, and provides a light high-reliability heat dissipation cold plate brazing forming process which comprises the steps that through multi-power testing, the surface temperature conditions of a heat dissipation cold plate finished product under different powers are obtained, a local overheating area is screened, the diameter of a welding spot air hole in the heat dissipation cold plate finished product is obtained, and a suspected welding spot defect area is obtained; carrying out coincidence analysis on the local overheating area and the suspected welding spot defect area to obtain a co-occurrence sub-area, carrying out synchronism analysis on the temperature and the pore diameter in the co-occurrence sub-area under overload power, judging whether relevance exists or not, if yes, obtaining a local temperature-welding spot defect relevance model, and if not, obtaining a local temperature-welding spot defect relevance model; and whether a high error exists in the current air hole diameter detection result of the heat dissipation cold plate finished product or not is judged based on the correlation model, if yes, correction is carried out, heat dissipation cold plate defect classification is carried out according to the air hole diameter of the heat dissipation cold plate finished product after correction, and the production quality and use reliability of the heat dissipation cold plate can be improved.

The utility model relates to the technical field of roller shutter doors, in particular to a multi-angle traction device for a roller shutter door, which comprises a wind-up roller A and a wind-up roller B. The wind-up roller A and the wind-up roller B are vertically arranged, the opposite ends of the wind-up roller A and the wind-up roller B are connected through a linkage mechanism, and a power mechanism is arranged at the end, far away from the wind-up roller B, of the wind-up roller A; and a driving shaft and a guide shaft are arranged above the winding roller A and the winding roller B respectively. The single-motor driving system is matched with the bevel gear linkage mechanism, synchronous operation of the multi-angle winding device is achieved, the problem that a traditional multi-motor driving system is poor in synchronism is thoroughly solved, it is ensured that a complete and continuous fireproof barrier is formed when a roller shutter is unfolded at the corner, and the service life of the roller shutter is prolonged. And by adopting the combined design of universal joint transmission and chain wheel and chain transmission, the energy consumption and maintenance cost of the system are greatly reduced while the transmission precision is ensured, and compared with a traditional multi-motor system, the system has higher reliability and economical efficiency.

The invention discloses a double-sliding-table linkage lifting device. The double-sliding-table linkage lifting device comprises at least two parallel guide components with strip-shaped grooves, at least two sliding assemblies, a sliding bracket and an actuating mechanism. Through an internal and external linkage structure of an external sliding bracket and an internal sliding assembly, mechanical rigidity synchronous lifting of multiple guide components is achieved under driving of a single actuating mechanism. Through the structural design of internal and external linkage, the problem of poor synchronism of double motors is solved; and an elastic pre-tightening structure of the sliding assembly is combined, so that inward concave deformation caused by stress release after the guide component is slotted is effectively compensated, and the running smoothness of the whole stroke is ensured.

The application discloses a control method of a diaphragm unwinding motor of a Z-type laminating machine, which comprises the following steps: obtaining a change rule of a diaphragm length from tangent lines of two end transition rollers to edges of a pressed sheet clamping pressing part in one laminating cycle of the Z-type laminating machine; and controlling the diaphragm unwinding motor according to the change rule. The control method of the diaphragm unwinding motor of the Z-type laminating machine can control the diaphragm unwinding motor according to the change rule of the diaphragm length calculated in advance, and does not have a lag problem caused by a position sensor, so that the synchronism of unwinding and laminating is improved. In addition, the application further provides the Z-type laminating machine.

The invention relates to the technical field of instruments and meters, in particular to a contra-rotating turbine flow sensor of an integrated structure. The shaft system part comprises an upstream flow guide plate, a transmission shaft, a conical flow guide part, an upstream turbine, a middle transition flow guide part, a downstream turbine, a downstream transition flow guide part, a downstream flow guide plate and a locking nut, and one end of the transmission shaft is connected to the upstream flow guide plate; the conical flow guide part, the upstream turbine, the middle transition flow guide part, the downstream turbine, the downstream transition flow guide part, the downstream flow guide plate and the locking nut are sequentially arranged on the transmission shaft in a sleeving mode, and the shafting part is axially locked and embedded in the shell by fastening the locking nut. An electrical assembly. According to the invention, the structure is compact, the installation adaptability is good, the pressure loss is obviously reduced, the energy-saving effect is obvious, the wide range, the high precision and the strong medium adaptability are improved, the reliability is high, the signal synchronism and the anti-interference capability are strong, the production process is simplified, and the comprehensive cost is reduced.

The utility model provides a flat cable rack for computer application engineering. The wire arranging frame for the computer application engineering comprises a base, two sets of bottom plates are symmetrically installed at the bottom of the base, the base is equally divided into a left part and a right part, two sets of lead screws are symmetrically installed at the top of the base, first gears are installed at the bottoms of the lead screws, and second gears are meshed with the side faces of the first gears. The first gears are installed at the bottoms of the two sets of lead screws, the two sets of second gears are installed on the rotating shaft installed in the base, the second gears are meshed with the first gears, the two sets of second gears can drive the two sets of first gears to rotate synchronously by rotating the rotating shaft through the rotating handle, and therefore the two sets of lead screws rotate synchronously. And the two sets of screw sleeves are driven to synchronously move along the two sets of screw rods, so that lifting of the mounting base is achieved, the height of a wire arranging pipe mounted on the mounting base is conveniently adjusted, and compared with a comparison case, the device is high in structural synchronism and more convenient to operate.

The present application relates to a kind of automatic induction wire winder.It mainly solves the technical problems of poor action synchronism,poor controllability,low winding efficiency,service life decline and low winding accuracy of existing wire winder.The wire winder comprises a shell,an installation plate,a motor,a main shaft and a dial piece.The installation plate is fixed to the shell,characterized in that it further comprises a rotating shaft,a limiting swing arm,a cam,a rotating disc and a swing arm.The rotating shaft is fixedly connected with the dial piece.The limiting swing arm and the cam are fixed to the rotating shaft.The rotating disc is fixed to the main shaft.The limiting swing arm is clamped with the rotating disc.The swing arm has clamping portions and sensing portions at both ends.The cam is in top pressure cooperation with the clamping portions.The sensing portions are connected with elastic members.Magnets are arranged at the sensing portions.A sensor is arranged on the installation plate.The wire winder uses limiting device combined with automatic induction to simultaneously realize the accurate controllability of the main shaft rotation and the accurate controllability of the motor start-stop,with good synchronism,high controllability,high control accuracy and high winding efficiency.

The invention discloses a Mecanum wheel jacking integrated driving assembly and a motion and jacking collaborative prediction control method thereof. The assembly is composed of a chassis, four Mecanum wheel driving modules, a jacking execution unit, a height sensor, an encoder / posture or pressure monitoring unit and a central controller. The controller maps a non-linear state to a Koopman state space through a multi-layer perceptron, multi-step prediction and rolling optimization are carried out, and the wheel speed and the jacking execution amount are solved at the same time in the same control period; during the jacking execution period, speed constraint adaptive to the jacking state is set for the chassis, and feedforward compensation is conducted on the jacking control quantity according to the posture or the acceleration signal; and the Koopman matrix parameters are periodically updated on line to adapt to load and working condition changes. According to the scheme, the synchronism and stability of moving and jacking are improved, and the device is suitable for warehousing, carrying and other scenes.

Methods and systems for managing operation of a deployment of data processing systems are disclosed. The operation may be managed by determining a synchronicity classification of data that is to be transmitted between the data processing systems, and performing the transmission based on the synchronicity classification. The data may be classified as synchronous and / or asynchronous. If the data is classified as synchronous, then the data may be transmitted through a synchronous channel immediately and / or at a predetermined future time when the synchronous channel is operational. Otherwise, if the data classified as asynchronous, then the data may be appended to a queue of data to be transmitted at a future time.

The application discloses a connecting device and a refrigeration equipment assembly. The connecting device comprises a connecting body, a connecting piece, a releasing piece and a pushing piece. The connecting piece is rotationally connected to the connecting body through a rotating shaft and comprises an abutting end and a releasing end. The releasing end is arranged at the other end of the rotating shaft away from the abutting end. The releasing piece is arranged on the connecting body and comprises a pushing block, a pushing rod and an engaging block connected in sequence. The pushing block is in abutment with the releasing end. The pushing piece is arranged on the connecting body and has a wedge surface for abutting with the engaging block. The pushing piece is used to drive the engaging block to move through the wedge surface, so that the releasing end is driven to move away from the connecting body through the pushing rod and the pushing block, and the abutting end is driven to move towards the connecting body. The application utilizes the structure cooperation of the wedge surface of the pushing piece and the multi-stage transmission of the releasing piece, realizes the accurate conversion from axial displacement to radial movement, and guarantees the smoothness of transmission and the synchronism of releasing action.

A kind of control method of double push chain device lifting platform synchronous operation, belong to push chain lifting platform technical field, including the following steps: (1) the position of the push chain head of two push chain devices is detected;(2) the speed of two push chains is calculated;(3) the height difference of the push chain head of two push chains is calculated;(4) the push force of the push chain head of two push chains is read;(5) the push force difference of the push chain head of two push chains is calculated;(6) according to fuzzy rule base, judge the unbalance load condition, and calculate compensation frequency and compensation time.The present application solves the synchronization problem and unbalance load problem in the operation of two push chain device lifting platforms, improves the load capacity of the lifting platform, improves the stability of the lifting platform, and prolongs the service life of the lifting platform.

The invention provides a connector terminal plugging testing device, which belongs to the technical field of terminal testing and comprises a testing seat, a plurality of testing probes, a driving mechanism, a control system and a probe head synchronous monitoring mechanism. According to the connector terminal plugging test device, the retraction synchronism of the plurality of test probe heads is monitored in real time through the probe head synchronous monitoring mechanism in the connector plugging process, when the terminal plugging is abnormal, the plugging test action is terminated in time, unnecessary mechanical action is avoided, and the test efficiency is improved under the long-term and high-frequency test working condition. The working stability and reliability of the probe are tested, meanwhile, the test efficiency is improved, through mechanical cooperation of the monitoring base, the monitoring head and the follower, the retraction synchronism of the probe head can be monitored stably and reliably for a long time, accurate resetting of the probe head can be assisted to a certain degree, and the test efficiency is improved. And the reliability of the plugging test and the stability of long-term operation are further ensured.

This invention discloses an online electric edge-rolling machine for continuous acid rolling. The edge-rolling machine includes a split frame, a double-cone adaptive rolling shaft, a permanent magnet synchronous drive module, a waste edge centering device, a tension adaptive module, and a PLC linkage control unit. Through permanent magnet synchronous drive and linkage with the production line, the synchronization error is ≤1m / min, and the speed reaches 350m / min. The double-cone rolling shaft is suitable for waste edges of 10-50mm, and the tension is adjustable from 80-250N. This significantly improves wear resistance, centering accuracy, tension stability, and equipment lifespan. This invention solves the problems of loose edge winding, poor synchronization, and severe wear in high-speed thick strip steel production lines and is suitable for continuous acid rolling production lines.

This application provides a method, electronic device, and vehicle for controlling a vehicle window. In response to receiving a synchronous control command for the window, the method determines an initial duty cycle, a reference window, and an adjustable window. Based on the initial duty cycle, it drives the corresponding drive motors for the reference window and the adjustable window, obtaining a first reference opening degree for the reference window and a first adjustable opening degree for the adjustable window. When the absolute value of the first opening degree difference between the first adjustable opening degree and the first reference opening degree is greater than or equal to a preset opening degree difference, it determines an updated duty cycle based on the first opening degree difference and the initial duty cycle. Based on the updated duty cycle, it drives the corresponding drive motor for the adjustable window. This adjusts the actual duty cycle for the adjustable window while maintaining the actual duty cycle for the reference window. Thus, the actual duty cycles of the drive motors for the reference window and the adjustable window are different, which effectively compensates for the asynchrony in window movement caused by other factors, improving the synchronization of window control.

This invention discloses a hopper scale calibration control method and system, relating to the field of metrological calibration technology. The method includes: acquiring a target calibration load value; controlling a first loader and a second loader to synchronously apply tension; executing a multi-level speed control step, switching the loading speed from high speed to medium speed, low speed, or slow speed based on the difference between the current total tension value and the target value; executing a synchronous difference control step, calculating the tension difference between the two loaders in real time, and pausing the loader with the larger force value when the difference exceeds a preset threshold until the difference recovers. This invention also provides a hopper scale calibration system that executes the above method. This invention achieves a balance between accuracy and efficiency through multi-level speed control and solves the problem of uneven loading at two points through synchronous difference control, offering advantages such as high calibration accuracy, good loading synchronization, convenient operation, and high safety.

The invention relates to a hanging basket construction method for continuous beam pouring and hanging basket equipment, all winches on a No.0 block are controlled to synchronously hoist two bottom basket mechanisms, synchronous lifting and synchronous in-place of the bottom basket mechanisms in two pouring directions are realized, the lifting time is shortened, a symmetrical stress structure is formed, and the construction efficiency is improved. And the situation that due to single-side hoisting, the single-side hanging basket is overloaded at the pre-buried point of the zero block, and the zero block is unevenly stressed is avoided. The stress uniformity of a lifting rope, the synchronism of a winch, the posture of the bottom basket mechanism, the stability of an anchoring system and the like can be statically detected at the preset trial lifting height of the bottom basket mechanism from the ground, and if deviation or problems are found, quick adjustment can be performed at a low altitude. The bottom basket mechanism is conveyed to a coarse positioning position through synchronous hoisting of the winch, and large deviation caused by direct hoisting of the bottom basket mechanism in place is avoided. A hanging rod and a hanging jack of the hanging mechanism are connected with the bottom basket mechanism, residual deviation in the coarse positioning stage can be accurately corrected, and the template positioning requirement of continuous beam pouring is met.

The invention discloses a communication method and device, a storage medium and a program product, and belongs to the technical field of communication. The method comprises the following steps: performing time synchronization with a plurality of slaves; n first commands are generated, the n first commands are in one-to-one correspondence with n slaves in the multiple slaves, and each of the n first commands comprises a first timestamp and a first instruction code; and sending a corresponding first command to each slave in the n slaves in sequence to indicate the n slaves to execute an operation corresponding to the first instruction code at the time corresponding to the first timestamp. Through the first timestamp in the first command, each slave in the n slaves can start to execute the operation corresponding to the first instruction code at the same time at the time indicated by the first timestamp. Therefore, high real-time performance and strong synchronism of operation execution of the n slaves can be improved.

The invention discloses a bridge rectifier pin angle-adjustable bending device which comprises a bending device body, two hinged folding plate assemblies are arranged on the bending device body, one hinged folding plate assembly is fixedly arranged, and the other hinged folding plate assembly is transversely and movably arranged. A pin forming die cavity is formed between the two hinged folding plate assemblies, and the bending device body is provided with a synchronous angle control assembly used for synchronously controlling angle adjustment of the two hinged folding plate assemblies and keeping the angles consistent. The problems that in the prior art, a bending device is inconvenient in angle adjustment, poor in bending assembly synchronism and low in machining precision are solved, accurate and efficient bending machining of bridge rectifier pins of different specifications is achieved, and the production efficiency and the product quality are improved.

The utility model discloses an electromagnetic contactor with mechanical linkage mechanisms, which is characterized in that an armature and a coil are arranged in the electromagnetic contactor, the armature is connected with a contact support, the coil is connected with a conversion contact, and a plurality of groups of mechanical linkage mechanisms are further arranged in the electromagnetic contactor. The mechanical linkage mechanism is respectively clamped with the armature and the contact support; each mechanical linkage mechanism comprises a sickle-shaped interlocking piece and a C-shaped interlocking piece which are connected in a one-to-one mode, and the adjacent mechanical linkage mechanisms are connected through a linkage rod. On the basis of a two-pole contactor, modular combination and connection are realized, and a built-in mechanical linkage mechanism realizes expansion of a four-pole or even multi-pole contactor, so that the purpose of expanding the pole number of a small-sized contactor is achieved. Through the interlocking principle of a mechanical linkage mechanism, the linkage of the action of the contactor is realized, and the synchronism and consistency of the on-off of the contacts of a four-pole or even multi-pole contactor are achieved, so that the overall reliability of the expanded contactor is improved.

The application discloses a hanging basket synchronous control method, and the hanging basket comprises the following: a walking track arranged on a completed bridge section, a truss movably arranged on the walking track, a sliding beam arranged below the completed bridge section, the sliding beam being connected with a formwork, the sliding beam being connected with the truss through a first lifting rod, a bottom basket connected with a truss upper beam of the truss through a second lifting rod, and a driving device for driving the truss, the sliding beam and the bottom basket to move synchronously. The control method comprises the following steps: obtaining a first signal of a first sensor group, wherein the first sensor group comprises at least one first transmitting end and at least one first receiving end, and at least one first transmitting end and / or first receiving end is arranged on each truss; if the first signal is interrupted, the driving device is turned off, and the plurality of trusses are leveled. Therefore, the synchronization of the plurality of trusses can be effectively ensured, and the safety during the walking process of the hanging basket is improved.

The invention relates to the technical field of automatic machining devices, and discloses a non-standard equipment efficient automatic machining device which comprises a mounting base and a rotating assembly mounted on the surface of the mounting base, and further comprises a positioning assembly mounted on the surface of the rotating assembly and used for limiting parts, and a movable frame is slidably connected to an inner cavity of the positioning assembly; and the top of the movable frame is fixedly connected with a pushing plate which is in sliding connection with the inner wall of the positioning assembly. Through a series of ingenious pure mechanical and pneumatic coupling design, mechanical energy of core actions such as rotation and jacking in operation of the device is efficiently reused for two auxiliary functions of automatic blowing and discharging and station self-cleaning of parts, high function integration and internal circulation are achieved, and the automatic blowing and discharging device is suitable for large-scale popularization and application. The device has the outstanding characteristics of extremely high reliability (no complex electric control), perfect synchronism (mechanical hard connection), simplicity in maintenance and low operation cost, and is particularly suitable for high-speed, continuous and multi-process non-standard automatic processing scenes with requirements on the cleanliness of a working environment.

The utility model discloses a kind of switch overrange accurate control device, including switch base, static contact and magnetic drive mechanism being installed on switch base, be installed on switch base, and with the movable contact assembly of magnetic drive mechanism swing connection;Movable contact assembly includes multiple movable contact, and each movable contact is equipped with overrange adjusting structure, overrange adjusting structure can drive corresponding movable contact to move, the movement range of movable contact is adjusted;Magnetic drive mechanism can be driven movable contact to rotate by electromagnetic excitation and be closed with static contact, or with static contact is openedThe utility model is provided with overrange adjusting structure, and overrange adjusting structure and movable contact are one-to-one corresponding by cooperation, the overrange stroke of each movable contact can be individually adjusted, support every pole overrange amount independent adjustment, improve the action synchronism of multiple-pole contact, reduce the influence of machining accuracy and assembly error to overrange.