80 results about "Magnetic switching" patented technology

The invention provides a high-performance integrated electric actuator, and belongs to the technical field of automatic control. The motor drives the ball screw assembly to rotate through the transmission mechanism. The ball screw assembly is fixedly connected with the piston rod; the piston and the piston rod are assembled and then arranged in the main body cylinder barrel to do linear reciprocating motion; a self-lubricating structure is arranged on the inner wall of the main body cylinder barrel; a piston rod is rigidly connected with a nut of the ball screw assembly, a rod body penetrates through a guide sleeve at the front end of the body, and the front end of the piston rod is connected with a transmission load through a socket. A guide sleeve made of a thermal compensation material is arranged at the guide part of the piston rod; the magnetic switch is fixed outside the main body through a mounting groove or a screw and is aligned with the magnetic ring on the piston rod; the magnetic ring is embedded into the piston rod; and the anti-vibration supporting ring and the wear-resistant ring are arranged at the supporting part of the ball screw assembly. Stepless and multi-point positioning in a range can be realized according to working requirements, and multi-point free positioning is ensured.

1. Name of the designed product: case (for magnetic switch). 2. Use of the designed product: case for switch. 3. Design points of the designed product: combination of shape and pattern. 4. Picture or photo best indicating the design points: perspective view.

The utility model discloses an abnormal room entering monitoring device, which comprises an alarm, an inductor and a PCBA (Printed Circuit Board Assembly) mainboard which are arranged oppositely, the alarm comprises a shell, an infrared sensor, a Hall switch and a voice alarm module, the infrared sensor, the Hall switch and the voice alarm module are controlled by the PCBA mainboard, the Hall switch is inducted with the inductor, and the voice alarm module is connected with the shell. When the Hall switch is separated from the sensor and / or the infrared sensor senses a human body signal, the voice alarm module gives a voice alarm, the voice alarm module comprises a loudspeaker and a recording chip, the loudspeaker and the recording chip are both controlled by the PCBA mainboard, and the voice alarm module is connected with the PCBA mainboard. And a permanent magnet corresponding to the Hall switch is arranged in the inductor. According to the utility model, the infrared induction and the magnetic switch are combined in the alarm, and the device can simultaneously induce the opening and closing states of doors and windows and whether a person enters a room, thereby greatly improving the alarm accuracy and providing more comprehensive safety guarantee.

The utility model provides an electromagnetic coil assembly and semiconductor processing equipment. The electromagnetic coil assembly comprises a direct current power supply; an electromagnetic coil; the current steering device is connected between the electromagnetic coil and the direct-current power supply; the current steering gear comprises a first magnetic switch and a second magnetic switch, and the first magnetic switch and the second magnetic switch comprise a movable contact, a normally open contact and a normally closed contact; a movable contact of the first magnetic switch is connected with a first end of the electromagnetic coil, and a normally open contact and a normally closed contact are respectively connected with a positive electrode and a negative electrode of the direct current power supply; a movable contact of the second magnetic switch is connected with the second end of the electromagnetic coil, a normally open contact and a normally closed contact are connected with the negative electrode and the positive electrode of the direct-current power source respectively, and the first magnetic switch and the second magnetic switch are switched synchronously. The current direction of the electromagnetic coil can be conveniently controlled, and the stability of the deposition process and the product quality are improved.

This invention discloses an output overcurrent protection circuit and a switching power supply. The circuit includes a first overcurrent protection circuit and a second overcurrent protection circuit, which forms a heterogeneous redundant output overcurrent protection circuit with the first overcurrent protection circuit. The second overcurrent protection circuit includes a second switching module, a second comparison control module, and a second current sampling module. The first switching module uses a magnetic switch, and the second switching module uses a semiconductor device switch; or the first switching module uses a semiconductor device switch, and the second switching module uses a magnetic switch, thereby forming a heterogeneous dual-switch overcurrent protection circuit. This invention uses a semiconductor device switch in the second switching module of the second overcurrent protection circuit that is different from the semiconductor device switch in the first switching module of the first overcurrent protection circuit, effectively avoiding the possibility of the same type of device exhibiting the same failure condition in a specific environment, greatly increasing the reliability of the protection function.

The invention provides a switching valve with a magnetic attraction function. The switching valve comprises a water outlet seat, a switching valve body and a magnetic attraction assembly. The water outlet seat comprises a water inlet channel, a mounting cavity and at least two water outlet channels. The switching valve body is installed in the installation cavity and comprises an exposed operation part. The magnetic attraction assembly comprises a first magnetic attraction piece and is arranged at the operation portion of the switching valve body. A second magnetic attraction piece is arranged on the periphery of the water outlet device, and the water outlet device is attracted to the water outlet base through the second magnetic attraction piece and the first magnetic attraction piece. According to the magnetic switching valve main body mechanism, the magnetic component and the switching valve main body are integrated on the same valve body, the position of the magnetic component does not need to be reserved and designed, the structure is simpler, and the problems that a traditional switching valve is single in function and crowded in layout with other functional structures during installation are solved.

The utility model relates to a door opening interrupting device for a connection table, which belongs to the technical field of connection tables and comprises a first control device, a second control device and a magnetic inductive switch, the magnetic inductive switch is respectively and electrically connected with the first control device and the second control device, the first control device comprises a PLC (programmable logic controller) 1, and a Y0 end of the PLC 1 is connected with one end of the magnetic inductive switch. The other end of the magnetic induction switch is connected with the second control device, the magnetic induction switch is additionally arranged on the connection table protective cover, and the magnetic switch is connected to a board solving signal of a front machine of the connection table, so that external foreign matters are effectively prevented from entering the connection table and falling on a PCB (printed circuit board).

The utility model discloses a wharf cable trough rain sewage collecting system, which comprises a cable trough and a control electric box, a first water outlet and a second water outlet are arranged in the cable trough, a main water collecting pipe is arranged below the first water outlet, and the second water outlet is connected with the upper part of the main water collecting pipe through a pipeline. The lower portion of the main water collecting pipe is connected with a water pump through a water pump water inlet pipeline, and a water pump water outlet is connected with a wharf rain sewage collecting box through a water pump water outlet pipeline. A magnetic turning plate liquid level meter is arranged on one side of the main water collecting pipe, and binding type magnetic switches are arranged at the upper end and the lower end of the magnetic turning plate liquid level meter. The device is reasonable in design and small in installation space, the magnetic turning plate liquid level meter and the binding type magnetic switch are used for controlling operation of the whole system, the situation that rain sewage is directly discharged due to leakage of part of cable groove sections is eradicated, and potential safety hazards are reduced.

The utility model relates to a steering wheel switch capable of generating roller hand feeling through magnetic force, which comprises a shell, a PCB (printed circuit board), a support and rollers, the PCB and the support are mounted in the shell, and a magnetic switch is mounted on the PCB; the roller is rotatably installed on the support, a magnet frame is rotatably installed at the bottom of the support, a gear assembly is arranged on the support, the roller drives the magnet frame to rotate through the gear assembly, a magnet ring is fixedly installed on the magnet frame, the magnet ring synchronously rotates along with the magnet frame, and the magnet ring on the magnet frame corresponds to a magnetic switch on a PCB. The magnetic switch is used for detecting the magnetic field intensity and direction of the magnetic ring, and the support is provided with magnets on two sides of the magnetic ring. The magnetic ring and the magnet block are not in contact, physical friction is avoided, the service life is prolonged, good performance can be kept for a long time, and therefore the effect of simulating the hand feeling of a traditional roller is achieved.

The utility model relates to a multifunctional combined type glue brushing machine, which belongs to the technical field of glue brushing machines and comprises a glue storage component, a glue barrel is arranged in the glue storage component, and a mounting position is arranged at the top of the glue storage component; the glue pumping assembly is used for carrying out glue pumping operation on the glue barrel in the glue storage assembly, and a clamping shaft used for being installed on the installation position is arranged on the glue pumping assembly; the stirring assembly is used for stirring glue in a glue barrel in the glue storage assembly, the stirring assembly is provided with a clamping shaft used for being installed on an installation position, glue in the glue barrel is pumped through the glue pumping assembly, during glue pumping, a diaphragm pump pumps glue through a glue pumping pipe and discharges the glue through a glue outlet pipe, and the glue in the glue barrel descends along with the liquid level of the glue in the glue barrel. The floating ring descends, the induction piece is close to the magnetic switch, when the floating ring is located at the lowest point, namely the glue is completely pumped, the distance between the induction piece and the magnetic switch meets the detection requirement, at the moment, the magnetic switch detects the induction piece and sends an electric signal to the control circuit board, and the control circuit board controls the buzzer and the indicator lamp to work to prompt that the glue barrel needs to be replaced.

The utility model relates to a lifting device bearing platform, in particular to a semiconductor equipment lifting device bearing platform which comprises an equipment cabinet body, a lifting device is fixedly arranged on the inner wall of the equipment cabinet body, a box process hole is formed in the side wall of the equipment cabinet body, and the lifting device comprises a fixing plate. The fixed plate is fixedly connected with an air cylinder, one end of a piston rod of the air cylinder is fixedly connected with a bearing plate, the bearing plate comprises a first bearing plate and a second bearing plate, the first bearing plate and the second bearing plate are both fixedly provided with supporting columns used for placing wafers, and the air cylinder is arranged to serve as a power source of the lifting device. The piston rod stretches out and draws back to drive the bearing plate to move up and down, the upper magnetic switch and the lower magnetic switch trigger signals by detecting the magnetic ring on the piston rod, accurate feedback of the position of the bearing plate is achieved, the accuracy and stability of the lifting process are ensured, and accurate processing of the A face and the B face of the same wafer is achieved.

This invention relates to the technical field of milling, and more particularly to a depth-fixing head assembly and a vertical milling machine. The depth-fixing head assembly includes a depth-fixing head, probes, magnetic switches, and elastic elements. The depth-fixing head is used to connect to a milling motor and has a central hole in the vertical direction for mounting the milling cutter. Several depth-fixing grooves are arranged circumferentially around the central hole. The probes are slidably disposed within the depth-fixing grooves, with each probe extending out of the groove at a different horizontal height. The magnetic switches are fixed to the depth-fixing head and correspond one-to-one with each probe. The elastic elements are disposed within the depth-fixing grooves and connected to the probes, allowing the probes to selectively trigger the magnetic switches. During milling feed, probes at different heights sequentially contact the workpiece and sequentially trigger the corresponding magnetic switches, achieving multi-level real-time sensing and graded feed control of the milling depth. This effectively prevents over-milling, significantly improves depth control accuracy and machining reliability, and features a compact structure, low cost, and ease of retrofitting existing equipment.

A magnetic belt clamp for clamping uniform conveyor belts for cutting or clamping. The magnetic belt clamp includes a clamp bar with one or more magnetic switches along its length. When in the on position, the magnetic switches attract ferromagnetic material in a lower belt aligner, clamping a portion of the conveyor belt in the gap between the bottom of the clamp bar and the aligner. The aligner has alignment structures on the deck that accept protruding belt features to align the belt relative to a guide track, along which a cutting assembly slides to cut a precise line across the belt. A belt cutter or magnetic clamp can be easily attached to the belt splicer to clamp the butt ends of the belts to be spliced.

This invention discloses a high-voltage nanosecond pulse shaping device and method based on magnetic devices. The device includes: a first magnetic transmission line and a second magnetic transmission line, with their input ends connected in parallel and connected to an initial pulse source; the output end of the first magnetic transmission line is connected to a load terminal; the output end of the second magnetic transmission line is short-circuited to ground; the first magnetic transmission line includes a first magnetic ring arranged along the axial direction and an outer magnetic field coil; the second magnetic transmission line includes a second magnetic ring arranged along the axial direction. Based on the current-dependent nonlinear permeability effect of the magnetic ring, this device simultaneously achieves pulse rise time compression, fall time truncation, pulse width shortening, and suppression of pre-pulse and tail oscillations through the rising sharpening effect of the first magnetic transmission line and the falling truncation effect of the second magnetic transmission line. This overcomes the limitation of single nonlinear transmission line or magnetic switching technology, which can only optimize single pulse parameters, and can obtain high-quality pulse waveforms at the load terminal.

The invention discloses a vacuum high-pressure gas quenching device for high-performance die steel, relates to the technical field of heat treatment, and aims to solve the technical problem of local cooling difference caused by geometric shape difference of die steel. The vacuum high-pressure gas quenching device comprises a furnace body, a gas injection channel, a heating cavity, a vacuum inner furnace, a gas quenching switching mechanism and a shunting guide mechanism, the gas quenching switching mechanism comprises a driving unit, a conversion assembly and a displacement assembly, and the shunting guide mechanism comprises a partition plate, a shunting module and a bipolar magnetic switch. The air quenching switching mechanism drives the flow dividing guide mechanism to axially and precisely move, the flow dividing module is matched to magnetically adjust and control the flow field form, die steel of different structures is adapted, corner supercooling is restrained, groove inner corner cooling is strengthened, the problem of uneven cooling caused by geometrical shape difference is effectively solved, and the cooling efficiency is improved. The method has the remarkable advantages of being good in cooling uniformity, wide in equipment universality, simple and convenient in operation process, low in workpiece deformation and cracking risk and stable in heat treatment quality.

The invention discloses an automatic wood tray receiving and dispatching machine, and relates to the technical field of industrial automation. The equipment comprises a frame, a lifting mechanism, a fork arm mechanism and an electrical control system. The core innovation is that the fork arm mechanism is driven by a servo motor through a left-handed rotation ball screw and a right-handed rotation ball screw, and stepless electric adjustment of the distance can be achieved so as to adapt to trays with different widths; the electrical control system takes a PLC (Programmable Logic Controller) as a core, inputs an instruction through a touch screen, feeds back a position signal by utilizing a stroke sensor and a magnetic switch, and controls equipment to complete the whole process operation of automatic collection, neat stacking and sequential distribution of trays. The method thoroughly changes the traditional mode of depending on manual work or non-special equipment operation, has the outstanding advantages of high automation degree, strong adaptability, high operation efficiency, safe and reliable operation, remarkable reduction of labor intensity and the like, and is particularly suitable for the fields of manufacturing industry and logistics storage.

The invention relates to the technical field of oil and gas field downhole tools, and discloses a magnetic attraction type communication mechanism and a using method. The magnetic type communication mechanism comprises a body, the body is of a double-layer hollow tubular structure with one closed end, a pressing cap is installed at the other end of the body, a plurality of communication grooves are formed in the inner wall and the outer wall of the body, and the positions of the communication grooves in the inner wall correspond to the positions of the communication grooves in the outer wall; a clamping jaw is placed in the hollow interlayer of the body, magnetic conductive materials are arranged on the clamping jaw, and the clamping jaw is a cylinder with a plurality of communicated arc-shaped blocks. According to the using method of the magnetic attraction type communication mechanism, the magnetic attraction type communication mechanism is used, remote control is conducted through a magnetic switch tool, small magnetic force is utilized, a clamping jaw is made to move along a circle in the radial direction, and therefore the opening and closing process of the magnetic attraction type communication mechanism is achieved. The device is low in operation cost, high in reliability, high in safety, capable of being repeatedly used, suitable for various occasions where communication or closing needs to be remotely controlled, and capable of adapting to different pipe column sizes and shapes.

The invention relates to the field of air cylinders, and discloses an energy-saving air cylinder which comprises an air cylinder body, an energy-saving control module and a pilot control module which are integrated at one end of the air cylinder body, and further comprises a position detection unit which comprises a magnetic switch arranged on the air cylinder body and is used for sensing the movement speed of a piston; the locking mechanism comprises a conical recovery column arranged at the end of the piston, and an annular groove is formed in the surface of the conical recovery column; the double-cavity recovery assembly is arranged in an end cover of the air cylinder body and converts kinetic energy generated when a piston retreats into high-pressure potential energy, the high-pressure potential energy is precisely shunted, one part is used for achieving buffering and locking, the other part is recovered through an energy storage cavity, gas collected into the energy storage cavity is released through a pre-charging loop at the moment of starting of the next cycle, consumption of a main gas source is remarkably reduced, and the service life of the main gas source is prolonged. The conical recovery column is matched with the elastic cavity, so that mechanical oscillation is eliminated, and the fatigue life of the sealing piece and the cylinder body is prolonged.

1. The name of the design product: coffee pot (flow guide groove leakage cup magnetic switch valve D29-C). 2. The use of the design product: for brewing coffee. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: combined state perspective view.

The embodiment of the invention provides a reversible magnetic thin film material, a magnetism regulation and control method, a preparation method and a memory, the reversible magnetic thin film material is used for reversible magnetism regulation and control, the reversible magnetic thin film material comprises an Sb-Co alloy type thin film, and the atomic ratio of Sb to Co is 3: 1. According to the reversible magnetic thin film material provided by the embodiment of the invention, a highly reversible block metal magnetic switch is realized, the magnetic modulation amplitude of block ferromagnetic metal is improved, the metal shielding effect is broken through to realize volume phase regulation and control, stable operation at room temperature is ensured, and the reversible magnetic thin film material has reversible and non-volatile operation characteristics; therefore, a way is laid for practicability of high-performance magnetic electronic devices.

The application relates to a high-safety single-lamp controller which comprises a PCB bottom plate, a top cover, a control panel and a fireproof bottom cover, the PCB bottom plate, the top cover and the fireproof bottom cover are installed as a whole, the control panel is installed at the top end of the top cover, and a control processor is installed on one side of the top end of the PCB bottom plate. The three-protection structure formed by the expansion connecting strip of the expansion fireproof material, the sealing strip of the fireproof sealing material and the heat insulation plate of the fireproof heat insulation layer is adopted, the three-protection structure is automatically expanded and sealed when high temperature is encountered, a three-dimensional heat insulation barrier is formed, the fire spreading path is effectively blocked, the core circuit is protected, meanwhile, the physical and electronic double protections are formed by the magnetic switch sensor and the limiting buckle, the audible light alarm is triggered and power is forced to be cut off when the antenna is illegally disassembled, malicious damage or parameter falsification of the equipment is prevented, and the security level of public lighting facilities is improved.

This utility model discloses an XY-direction floating compensation unit based on pneumatic principles, including a base plate, a lower housing at the top of the base plate, a middle housing at the top of the lower housing, and an upper housing at the top of the middle housing. A piston is fixedly installed inside the lower housing, and a sliding block is fixedly installed in the middle of the bottom end of the base plate. A magnetic switch unlocked interface is provided on the surface of the middle housing. This utility model's XY-direction floating compensation unit based on pneumatic principles constructs an XY-plane position compensation unit suitable for the end effector of a robotic arm by using pneumatic drive ports, high-precision dimensional tolerances, and standardized installation interfaces. It utilizes air pressure to control the floating and locking states and achieves error compensation through precision machining of the mechanical structure, meeting the dual requirements of flexibility and precision for end effectors in industrial automation. In practical applications, it is necessary to adjust the air pressure value and compensation stroke in conjunction with the robotic arm control system parameters to achieve the best compensation effect.

A fan damper with pneumatic execution device, including box, air duct, valve plate shaft, valve plate, cylinder and electromagnetic valve, the piston push rod in the cylinder is fixedly connected with the slider which is slidingly arranged on the cylinder support, the piston push rod outputs power to the valve plate shaft through the slider and linkage mechanism, the other end of the piston push rod is provided with a magnetic ring, a plurality of magnetic switches are arranged outside the cylinder body, each magnetic switch corresponds to an opening angle of the damper valve plate, when the magnetic ring on the piston in the cylinder moves to the position of a magnetic switch, the magnetic switch outputs a feedback signal, and the opening angle of the damper is kept unchanged in the current state through the electromagnetic valve control. The scheme controls the damper to keep any air volume in the pneumatic state through the cooperation of the cylinder, the magnetic switches corresponding to the opening angle of the corresponding valve plate and the electromagnetic valve; has the characteristics of stable operation, synchronous opening of the valve plate and convenient remote automatic control.

The automatic assembly control system comprises a pneumatic control unit, a positioning walking unit, a positioning detection unit and an electrical control unit, the pneumatic control unit comprises a pneumatic control assembly, workpiece grabbing mechanisms and a magnetic switch, the workpiece grabbing mechanisms are arranged and distributed at the lower end of a truss, and the magnetic switch is arranged at the lower end of the truss. The magnetic switch is installed at the air cylinder detection end of the workpiece grabbing mechanism, and the pneumatic control assembly controls the workpiece grabbing mechanism to conduct workpiece grabbing motion through the magnetic switch. The positioning walking unit is matched with walking racks on main beams at the two ends of the truss, and the electric control unit controls the positioning walking unit to drive the truss to move along the main beams. The positioning detection unit is installed on the heat collector installation frame and used for monitoring the hoisting position of the heat collector. And the electrical control unit is respectively in control connection with the pneumatic control unit, the positioning walking unit and the positioning detection unit. According to the utility model, the installation efficiency and the installation precision can be improved, and the labor cost and the installation cost can be greatly reduced.

The air conditioner comprises a machine shell, a heat exchange air supply assembly, a magnetic control switch and a magnetic piece, the machine shell comprises a face frame and a panel, the panel is arranged on the face frame in the mode that the panel can be switched between the opening state and the closing state, a clamping hole is formed in the face frame, a buckle is arranged on the panel, and in the closing state, the buckle is connected with the clamping hole in a clamped mode, and the magnetic piece is arranged on the face frame. The heat exchange and air supply assembly is arranged in the machine shell, the magnetic control switch is arranged in the machine shell and electrically connected with at least part of power utilization modules in the heat exchange and air supply assembly so as to control power-on or power-off of the power utilization modules, the magnetic control switch and the clamping hole are oppositely arranged, and the buckle is provided with a magnetic piece suitable for being matched with the magnetic control switch. According to the air conditioner, an additional installation structure does not need to be arranged for installing the magnetic part on the panel, so that the structure of the panel can be well simplified, and the switch distance between the magnetic part and the magnetic control switch can be conveniently controlled through clamping connection of the buckle and the clamping connection hole, so that the accuracy of controlling the magnetic switch by the magnetic part is improved.

The utility model relates to the technical field of magnetic switches, in particular to a magnetic switch full-load life time testing device, which comprises a machine body, a plurality of magnetic switches are circumferentially arranged on the machine body, a power supply is arranged on the machine body, the power supply is electrically connected with the plurality of magnetic switches, the magnetic switches are electrically connected with a load module, and the load module is electrically connected with the machine body. A plurality of magnetic switches are arranged on the machine body, a rotating rod is rotatably arranged on the machine body, the rotating rod is located among the plurality of magnetic switches, a magnet is arranged on the rotating rod, the magnet is used for turning on and turning off the plurality of magnetic switches, a driving part used for driving the rotating rod to rotate is arranged on the machine body, and when the rotating rod rotates, the magnet on the rotating rod is close to or far away from the magnetic switches. The testing device has the effect of high testing efficiency.

The utility model discloses a magnetic switch for a cotton picker, which comprises a base, two groups of adjusting grooves are symmetrically arranged at the upper end of the base, telescopic columns are mounted in the adjusting grooves, springs are sleeved on the outer sides of the telescopic columns, and sliding blocks are fixed on movable parts of the telescopic columns. The beneficial effects are that the telescopic columns, the springs, the sliding blocks, the positioning rods and the positioning holes are arranged, the positioning rods are located in the positioning holes to fix and limit the magnetic switch in the use process of the magnetic switch, and when the magnetic switch needs to be disassembled and maintained, only external force needs to be applied to the magnetic switch to enable the magnetic switch to compress one group of telescopic columns and springs, and then the magnetic switch can be disassembled and maintained. When the magnetic switch is disassembled, the limiting rod and the limiting hole in the opposite direction can be separated, then fixation of one end of the magnetic switch is removed, then the magnetic switch is pulled out from the other set of positioning, the magnetic switch can be disassembled, the disassembling steps are effectively simplified, the disassembling efficiency is high, and the use performance of the magnetic switch is improved.

The application discloses a magnet attaching machine, which comprises a rack, a feeding assembly, a pulley set, a feeding belt, a roller, a servo motor, a magnet positioning block, a magnet assembling assembly, a magnet PSA attaching assembly, a linear guide rail, a second mounting seat, a second negative pressure detection table, a second magnetic pole separating motor, a second magnet PSA taking head, a magnet feeding groove, a magnet pressing block, a magnetic pole separating push rod, a detection assembly, a pressure maintaining cylinder, a detection piece, a magnetic switch, a probe, a detection magnet and a positioning pin. Compared with the existing magnet PSA attaching process, the magnet attaching machine realizes the concentration of the processing process, reduces the space occupied by the equipment and saves the production cost through the combination of the feeding assembly, the magnet PSA attaching assembly and the magnet assembling assembly. The first magnetic pole separating motor and the second magnetic pole separating motor are used for automatically distinguishing the polarity of the magnet, thereby improving the production efficiency. The detection assembly is used for effectively detecting whether the raw material is incorrectly or missed loaded, thereby reducing the defective product rate.

The device is used for welding a workbench, the workbench is provided with a part fixing station, and a thin plate to be detected and a concave-convex thin part formed through plate pressing are placed on the part fixing station. The device comprises a fixed support, a double-hinge-point pressing arm, a pressing block with one end extending out of the pressing arm and used for pressing the thin plate, and an air cylinder with a cylinder body fixed to the support and a piston rod hinged to a second hinge point of the pressing arm. The analog magnetic switch is connected with the cylinder body and the digital display setter, detects the displacement of a piston rod, converts an analog signal, receives a non-stacking threshold interval preset by the setter and compares the non-stacking threshold interval with the digital display setter; and the controller is connected with the magnetic switch and the welding equipment, receives the comparison result, outputs a control signal and controls the welding equipment to start and stop. A thin plate can be stably pressed through a pressing arm double-hinge structure and air cylinder driving, single material stacking is accurately distinguished by combining a magnetic switch and a setter, a controller is in linkage with welding equipment, closed-loop mistake proofing is achieved, and the device is suitable for industrial high-frequency welding scenes.

The utility model relates to the technical field of magnetic switch detection, in particular to a magnetic switch service life detection device, which comprises a power supply, a base and a controller, the power supply is electrically connected with the controller, an electromagnet is arranged on the base, the controller is electrically connected with the electromagnet, a plurality of magnetic switches are arranged on the base, and the controller is electrically connected with the electromagnet. The power source is electrically connected to the magnetic switch, the magnetic switch is located on one side of the electromagnet, the electromagnet is used for turning on and turning off the magnetic switch, and the magnetic switch is electrically connected with a load module. The testing device has the effect of high testing efficiency.