Shaft module connection damping device

Abstract

The application discloses a kind of axle module connection damping devices, including male head and female head, male head is equipped with the pressing plate with EVA foam gasket, female head is equipped with electromagnetic-mechanical coupling self-locking mechanism, two-stage gradient buffer damping structure and electronic control unit.When docking, male head EVA foam gasket and female head spring group constitute two-stage buffer absorption collision kinetic energy;When pressure sensor detects set pressure value, control board controls electromagnetic iron power off, spring drive baffle extends to realize self-locking, and blocking mechanism prevents baffle rebound;When separating, button manual trigger or ethernet communication module remote control electromagnetic iron power on to release locking.The application realizes the buffer damping of axle module connection, automatic locking, two-mode separation and real-time monitoring of state, improves the reliability, safety and intelligent level of connection device.

Description

Technical Field

[0001] This invention relates to the field of industrial automation and modular equipment technology, and in particular to a shaft module connection vibration damping device. Background Technology

[0002] In the field of industrial automation and modular equipment, shaft modules, as core functional units, play a crucial supporting role in improving system reconfiguration efficiency and achieving flexible production through their fast and reliable connection technologies. Existing shaft module connection technologies (such as mechanical locking and electromagnetic adsorption) are relatively mature in terms of basic functional implementation, providing a fundamental guarantee for the construction of automated production lines.

[0003] However, traditional connection devices generally suffer from the following defects: (1) poor impact resistance, hard collisions during docking easily damage the contact surface; (2) separation operation relies on manual unlocking or a single mechanical trigger, making it difficult to achieve remote control and automated management; (3) insufficient stability, the connectors are prone to loosening under vibration, thus amplifying positioning errors; (4) no monitoring capability, the status of the connectors is not controllable in real time. The root cause of the above problems is that traditional designs have failed to integrate core functions such as buffer protection, intelligent locking, flexible separation and status feedback, which restricts the further development of shaft module connection technology. Summary of the Invention

[0004] In view of this, the purpose of the present invention is to provide a shaft module connection shock absorption device, which realizes the buffering and shock absorption, automatic locking, dual-mode separation and real-time status monitoring of shaft module connection, thereby improving the reliability, safety and intelligence level of the connection device.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a shaft module connection shock absorption device, including a male head and a female head, wherein the male head includes a male head housing (1), a male head pressure plate (2), a male head cover plate (4), a male head small pressure plate (5), a first spring (6) and a first spring seat (7), the male head cover plate (4) is fixedly connected to the male head housing (1), the male head pressure plate (2) is fixedly connected to the male head small pressure plate (5), and a first EVA foam pad (3) is provided on the male head pressure plate (2); The female head includes a female head housing (8), a female head cover plate (18), a female head pressure plate (14), a female head small pressure plate (19), a second spring (11), a third spring (20), a second spring seat (21), a third spring seat (23), a fourth spring seat (25), a baffle (12), an iron sheet (15), a baffle limiting block (13), an electromagnet (10), a pressure sensor (22), a control board (16), a battery (24), a button (17), and a blocking mechanism; The female head cover plate (18) is fixedly connected to the female head housing (8), the female head pressure plate (14) is fixedly connected to the female head small pressure plate (19), the baffle (12) is slidably disposed in the slide rail inside the female head housing (8), the iron piece (15) is fixed on the baffle (12), the electromagnet (10) is fixed inside the female head housing (8) and is used to attract the iron piece (15) to drive the baffle (12) to slide, the second spring (11) is connected between the baffle (12) and the inner wall of the female head housing (8), and the baffle limiting block (13) is disposed on the outside of the slide rail to limit the sliding stroke of the baffle (12); The blocking mechanism is located on the side of the slide and is used to limit the rebound displacement of the baffle (12) after the baffle (12) hits the baffle limiting block (13); The pressure sensor (22) is connected to the third spring (20) through the second spring seat (21), and the third spring (20) is disposed between the female head pressure plate (14) and the pressure sensor (22); the control board (16) is electrically connected to the electromagnet (10), the pressure sensor (22), the battery (24) and the button (17) respectively.

[0006] In a preferred embodiment: the control board (16) is fixed inside the female housing (8), and the control board (16) integrates a microcontroller, a first step-down module, a second step-down module, an electromagnet drive module, a sensor signal processing module and a communication module. The battery (24) is fixed inside the female housing (8), and the battery (24) is electrically connected to the first step-down module and the second step-down module respectively. The first step-down module is electrically connected to the microcontroller to supply power to the microcontroller, and the second step-down module is electrically connected to the pressure sensor (22) and the communication module respectively to supply power. The signal output terminal of the pressure sensor (22) is electrically connected to the input terminal of the sensor signal processing module. The output terminal of the sensor signal processing module is electrically connected to the signal input terminal of the microcontroller. The microcontroller controls the on / off state of the electromagnet drive module according to the received pressure signal. The output terminal of the electromagnet drive module is electrically connected to the electromagnet (10). The button (17) is located on the outside of the female housing (8), and the button (17) is electrically connected to the signal input terminal of the microcontroller; the communication module is electrically connected to the communication interface of the microcontroller and is used to receive external control commands.

[0007] In a preferred embodiment: the first EVA foam pad (3) is attached to the surface of the male head pressure plate (2); the female head housing (8) is also provided with a second EVA foam pad (9), which is attached to the surface of the female head housing (8).

[0008] In a preferred embodiment: the baffle (12) is made of a self-lubricating material, the bottom of the baffle (12) is provided with a boss structure, and the slide is narrow at the top and wide at the bottom to prevent the baffle (12) from detaching from the slide in the vertical direction.

[0009] In a preferred embodiment: two fourth spring seats (25) are provided, and the two ends of the second spring (11) are respectively fixed to the baffle (12) and the inner wall of the female head housing (8) through the fourth spring seats (25).

[0010] In a preferred embodiment: one end of the third spring (20) is connected to the third spring seat (23), the third spring seat (23) is fixed to the bottom of the female head small pressure plate (19); the other end of the third spring (20) is connected to the second spring seat (21), and the pressure sensor (22) is connected to the second spring seat (21) by a double-ended stud.

[0011] In a preferred embodiment: the iron sheet (15) is fixed to the baffle (12) by bolts; the electromagnet (10), the pressure sensor (22) and the control board (16) are respectively fixed to the female head housing (8) by bolts; the blocking mechanism includes a third EVA foam pad (26) and a metal baffle (27), the third EVA foam pad (26) is disposed on the side of the slide, and the metal baffle (27) is disposed on the third EVA foam pad (26); the metal baffle (27) is in the shape of a "7" and is tilted when the baffle (12) is attracted by the electromagnet (10); The baffle (12) is provided with lugs on both sides. When the baffle (12) is released, the lugs press over the metal baffle (27) and deform the third EVA foam pad (26). When the baffle (12) rebounds, the lugs are limited by the metal baffle (27). The baffle limiting block (13) is fixed to the outside of the slide by bolts.

[0012] In a preferred embodiment: the male head housing (1) and the female head housing (8) are respectively provided with threaded holes for fixing to the shaft module by bolts.

[0013] In a preferred embodiment: the electromagnet driving module is a MOSFET driving module, which includes a MOSFET, a gate resistor, a pull-down resistor, a freewheeling diode, and a filter capacitor; the control signal output terminal of the microcontroller is connected to the gate of the MOSFET via the gate resistor, the pull-down resistor is connected between the gate of the MOSFET and ground, one end of the electromagnet (10) is connected to the power supply, the other end is connected to the drain of the MOSFET, the freewheeling diode is connected in parallel across the two ends of the electromagnet (10), and the filter capacitor is connected in parallel between the input terminal of the MOSFET driving module and ground; The sensor signal processing module includes an instrumentation amplifier and an RC filter. The differential signal output terminal of the pressure sensor (22) is connected to the differential signal input terminal of the instrumentation amplifier, and the output terminal of the instrumentation amplifier is connected to the analog-to-digital conversion pin of the microcontroller via the RC filter. The communication module is an Ethernet communication module, which includes an Ethernet communication chip, an integrated router, and a built-in antenna. The receiving end of the Ethernet communication module is electrically connected to the transmitting end of the microcontroller, and the transmitting end of the Ethernet communication module is electrically connected to the receiving end of the microcontroller. The button (17) is electrically connected to the microcontroller through a button peripheral circuit. The button peripheral circuit includes a pull-up resistor and a tactile switch. One end of the pull-up resistor is connected to the output terminal of the first step-down module and the other end is connected to the button signal input terminal of the microcontroller. One end of the tactile switch is connected to the button signal input terminal of the microcontroller and the other end is grounded. The button signal input terminal of the microcontroller is at a high level under normal conditions and becomes low level when the button (17) is pressed.

[0014] In a preferred embodiment: the electromagnet driving module drives two electromagnets simultaneously, the two electromagnets being a left electromagnet and a right electromagnet, the left electromagnet and the right electromagnet being respectively disposed on both sides inside the female head housing (8), and the two baffles (12) respectively corresponding to and cooperating with the left electromagnet and the right electromagnet.

[0015] Compared with the prior art, the present invention has the following beneficial effects: (1) The male end EVA foam pad and the female end spring assembly form a two-stage gradient buffer and shock absorption structure, which effectively absorbs the collision kinetic energy when the shaft module is docked, reduces the damage of rigid impact to the internal structure of the device, and extends the service life of the device.

[0016] (2) The shaft module is automatically locked by an electromagnetic-mechanical coupling self-locking mechanism that drives the baffle with an electromagnet and a spring. At the same time, the blocking mechanism can prevent the baffle from springing back, ensuring the firmness and reliability of the locking.

[0017] (3) A dual-mode redundant separation control is formed by physical buttons and Ethernet communication modules, which supports both on-site manual emergency separation and remote automated cluster control, thus improving the flexibility and reliability of separation operation.

[0018] (4) By integrating multiple functional modules such as step-down module, microcontroller, sensor signal processing, electromagnet drive and communication on the control board, the real-time monitoring and visual monitoring of the connection status is realized, which improves the intelligence level of the device. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the male connector structure of the present invention; Figure 2 This is a schematic diagram of the blocking mechanism of the present invention when the electromagnet is energized and the baffle is not released; Figure 3 This is a schematic diagram showing the state of the baffle as it is released through the blocking mechanism according to the present invention; Figure 4 This is a schematic diagram of the state when the baffle rebound is limited by the blocking mechanism of the present invention. Figure 5 This is a schematic diagram of the female head component structure of the present invention; Figure 6 This is a schematic diagram of the internal structure of the female head of the present invention; Figure 7 This is a schematic diagram illustrating the connection effect of the present invention; Figure 8 This is a topology diagram of the control board of the present invention; Figure 9 This is the overall schematic diagram of the control board circuit of the present invention; Figure 10 This is a schematic diagram of the microcontroller power supply step-down module (including power supply) of the present invention; Figure 11 This is a schematic diagram of the electromagnet MOSFET driving module of the present invention; Figure 12 This is a schematic diagram of the sensor and communication power supply step-down module of the present invention; Figure 13 This is a schematic diagram of the microcontroller control unit of the present invention; Figure 14 This is a schematic diagram of the Ethernet communication module (including an integrated router and a built-in antenna) of the present invention; Figure 15 This is a schematic diagram of the sensor signal output module of the present invention; Figure 16 This is a schematic diagram of the button of the present invention.

[0020] The meanings of the markings in the diagram are as follows: 1—Male head housing; 2—Male head pressure plate; 3—First EVA foam gasket; 4—Male head cover plate; 5—Male head small pressure plate; 6—First spring; 7—First spring seat; 8—Female head housing; 9—Second EVA foam gasket; 10—Electromagnet; 11—Second spring; 12—Baffle; 13—Baffle limiting block; 14—Female head pressure plate; 15—Iron sheet; 16—Control board; 17—Button; 18—Female head cover plate; 19—Female head small pressure plate; 20—Third spring; 21—Second spring seat; 22—Pressure sensor; 23—Third spring seat; 24—Battery; 25—Fourth spring seat; 26—Third EVA foam gasket; 27—Metal baffle. Detailed Implementation

[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0022] It should be noted that the following detailed descriptions are illustrative and intended to provide further explanation of this application. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0023] It should be noted that the terminology used herein is for the purpose of describing particular implementations only and is not intended to limit the exemplary implementations according to this application; as used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise; furthermore, it should be understood that when the terms “comprising” and / or “including” are used in this specification, they indicate the presence of features, steps, operations, devices, components and / or combinations thereof.

[0024] A shaft module connection vibration damping device, reference Figure 1-16 It includes male and female connectors, which are fixed to the shaft module with bolts. It not only has the function of connecting the shaft module, but also has a certain buffering and shock absorption function.

[0025] The male connector in this invention's connecting device has no electronic components, only mechanical parts. The mechanical parts include a male connector housing 1, a male connector pressure plate 2, a male connector cover plate 4, a male connector small pressure plate 5, a first spring 6, and a first spring seat 7. The male connector cover plate 4 is fixedly connected to the male connector housing 1, and the male connector pressure plate 2 is fixedly connected to the male connector small pressure plate 5. A first EVA foam pad 3 is provided on the male connector pressure plate 2. The male connector cover plate 4 and the male connector housing 1 are connected by bolts. The male connector pressure plate 2 and the male connector small pressure plate 5 are connected by threads. The first EVA foam pad 3 is attached to the male connector pressure plate 2, providing protection. When the shaft modules are mated, collisions are inevitable. In this case, the first EVA foam pad 3 on the male connector pressure plate 2 can absorb the kinetic energy of the impact, reducing rigid impact.

[0026] The female connector in the connecting device of this invention includes both electronic and mechanical components. The electronic components include a small DC chuck electromagnet 10, a small column-type pressure sensor 22 for detecting spring pressure, a control board 16, a battery 24, wires, and a button 17. The button 17 is mounted on the outside of the female connector and is used to separate the shaft modules. The female connector housing 8 has threaded holes drilled on its side, and the button 17 has threads at its tail; during installation, simply align the tail of the button 17 with the threaded holes and tighten it. The mechanical components include the female connector housing 8, a female connector cover plate 18, a female connector pressure plate 14, a small female connector pressure plate 19, a second spring 11, a third spring 20, a second spring seat 21, a third spring seat 23, a fourth spring seat 25, a baffle 12, an iron sheet 15, a baffle limiting block 13, the electromagnet 10, the pressure sensor 22, the control board 16, the battery 24, the button 17, and a blocking mechanism. The female connector cover plate 18 is also bolted to the female connector housing 8. The female pressure plate 14 and the small female pressure plate 19 are connected in the same way as the male head. Both baffles 12 are movable and are made of self-lubricating materials such as PTFE, which can form and maintain an effective lubrication layer on their own, significantly reducing friction and wear, and eliminating the need for external lubricant. In addition, both baffles 12 are connected to springs, and iron plates 15 are fixed to the baffles with bolts. The reciprocating motion of the baffles 12 can be achieved by the magnetic effect of the electromagnet 10 and the spring force. The electromagnet 10, pressure sensor 22, and control board 16 are all fixed to the female head housing 8 with bolts. The pressure sensor 22 and the second spring seat 21 are connected by double-ended studs. The female head also has a wire groove for easy wiring. The baffle limit block 13 is fixed to the outside of the slide of the baffle 12 with bolts to prevent the baffle 12 from hitting the female pressure plate 14 when sliding, causing structural damage or even detachment from the slide, which would cause the spring to stretch beyond its elastic limit and affect the blocking function of the baffle. The TPE film of the female connector is attached to the female connector housing 8, which also serves as a protective device to reduce rigid impact.

[0027] Specifically, the control board 16 has threaded holes at its four corners, which are then fixed to the four flanges inside the female connector by four bolts. The pressure sensor 22 has threaded holes along its circumference and is fixed inside the female connector by bolts. The two electromagnets 10 also have threaded holes along their circumference and are fixed to the inner wall of the female connector by bolts. The 12V battery 24 is housed in a rectangular mounting base, which also has threaded holes at its four corners and is fixed inside the female connector by bolts. The female connector also has wire grooves inside, and through holes are provided between the mounting positions of the pressure sensor 22 and the electromagnets 10 and these wire grooves to facilitate wiring.

[0028] In the mechanical part of the female connector, the female connector cover plate 18 and the female connector housing 8 are also connected by bolts. The female connector pressure plate 14 and the female connector small pressure plate 19 are also connected in the same way as the male connector. Both baffles 12 can move along the slide rail inside the female connector and are made of self-lubricating material to reduce friction during sliding. The bottom of both baffles 12 is in direct contact with the slide rail, and both bottoms have a boss structure. The slide rail is narrow at the top and wide at the bottom to prevent vertical displacement of the baffles 12 during sliding and to prevent the baffles 12 from detaching from the slide rail in the vertical direction during connection. In addition, the two baffles 12 are connected to the inner wall of the female connector by a second spring 11. The two ends of the second spring 11 are respectively welded to two fourth spring seats 25. One end of the fourth spring seat 25 is fixed to the baffle 12 by a bolt, and the other end of the fourth spring seat 25 is also fixed to the inner wall of the female connector by a bolt. An iron plate 15 is fixed to the baffle 12 using bolts. The electromagnet 10 attracts the iron plate 15 through electromagnetic effect, causing the baffle 12 to move. Both baffle limiting blocks 13 are fixed to the outside of the slide rail of the baffle 12 with two bolts to prevent the baffle 12 from detaching from the slide rail and colliding with the female head pressure plate 14, causing structural damage, and to prevent the spring from stretching beyond its elastic limit. The blocking mechanism consists of a third female head EVA foam pad 26 and a metal baffle 27. Two blocking mechanisms are arranged on both sides of each baffle 12. The third female head EVA foam pad 26 is adhered to the sides of the square bosses on both sides of the female head slide rail, while the metal baffle 27 is adhered to the third female head EVA foam pad 26. When the baffle 12 is attracted by the electromagnet 10, the metal baffle 27 on both sides of each baffle 12 is at a certain angle, tilted towards the limiting block. The baffle 12 has lugs on both sides. When the baffle 12 is released, the lugs press against the metal baffle 27, causing the third female head EVA foam pad 26 to deform, allowing the baffle 12 to pass. When the baffle 12 hits the limit block, it rebounds, and the deformation of the third female head EVA foam pad 26 is restored. Because the metal baffle 27 is shaped like the Arabic numeral "7" and the two metal baffles 27 form a certain angle when in their original positions, the lugs cannot pass through the blocking mechanism, and the displacement of the baffle 12 is restricted, locking it in a certain position. The third spring seat 23 is fixed to the bottom of the female head small pressure plate 19 with a bolt. One end of the third spring 20 is welded to the third spring seat 23, and the other end is welded to the second spring seat 21. The pressure sensor 22 and the second spring seat 21 are connected by a double-ended stud. The second EVA foam pad 9 of the female head is attached to the female head housing 8, also serving as a protective device to reduce rigid impact. The second EVA foam pad 9 and the third female head EVA foam pad 26 are made of the same material, only their shapes are different. The outer boss of the female head has four threaded holes, allowing it to be fixed to the shaft module with bolts.

[0029] The control board of the female connector of this invention integrates multiple modules, including a step-down module, a microcontroller, an electromagnet H-bridge drive module, an optocoupler isolation module, a bidirectional level conversion module, an ADC conversion module, and an instrumentation amplifier. The step-down module reduces the battery output voltage, ensuring the normal operation of the electromagnet and microcontroller; the microcontroller, as the central processing unit, plays a primary control role; the H-bridge drive module is used for rapid switching of the electromagnet and solves the back electromotive force problem when the electromagnet is de-energized; the optocoupler isolation module provides electrical isolation, isolating the voltage between the electromagnet circuit and the microcontroller circuit, reducing interference; the bidirectional level conversion module prevents voltage backflow; the ADC conversion module converts the analog signal output from the column pressure sensor into a digital signal; and the instrumentation amplifier amplifies the sensor signal, reducing signal interference. This multi-module integrated system design significantly reduces the space occupied by each module and minimizes potential contact problems during wiring, improving the durability and reliability of the connector.

[0030] Description of components such as "buck converter modules, microcontrollers, electromagnet H-bridge driver modules, optocoupler isolation modules, bidirectional level conversion modules, ADC conversion modules, and instrumentation amplifiers": The control board of the female connector of this invention integrates multiple modules, including two DC-DC step-down modules, an electromagnet MOSFET drive module, a sensor signal output module, a microcontroller control unit, an Ethernet communication module, and button peripheral circuitry. All modules share a common ground. The two step-down modules can be further categorized according to their power supply targets: a microcontroller power supply step-down module and a sensor and communication power supply step-down module. The microcontroller power supply step-down module reduces the 12V DC power output to approximately 3.3V to power the microcontroller chip on the control board; the sensor and communication power supply step-down module reduces the 12V output from the same power supply to approximately 5V to power the Ethernet communication module and the column pressure sensor. In the specific embodiment shown in the attached drawings, both step-down modules use the MC34063 chip as the step-down chip and employ the same peripheral circuit design. The peripheral inductors, resistors, and other components have the same function, but some component parameters differ. In this embodiment, the module includes a power supply, R3 is a current-limiting resistor, connected to the power input terminal and chip DRC pin 8, IPK pin 7, and SWC pin 1 to prevent excessive current from burning out the chip; C3 is an input filter capacitor, one end of which is connected to the power input terminal and chip V+ pin 6, and the other end is grounded to ensure a stable voltage input to the chip; R1 and R2 are feedback resistors that control the output voltage, one end of R1 is connected to CINV pin 5, and the other end is connected to GND, one end of R2 is connected to the module output terminal, and the other end is connected to CINV pin 5; C1 is a timing capacitor that affects the switching frequency, one end of which is connected to CT pin 3, and the other end is connected to GND. L1 stores energy when the switch is on and releases energy when it is off. One end is connected to pin 2 of SWE, and the other end is connected to the module output. D1 is a Schottky diode used as a freewheeling diode. The cathode is connected to pin 2 of SWE, and the anode is connected to GND. C2 is also a filter capacitor to reduce low-frequency ripple and ensure stable voltage output. One end is connected to the module output, and the other end is connected to GND. C7 further filters out low-frequency ripple in the output. One end is connected to the module output, and the other end is connected to GND. C8 is used to suppress high-frequency noise and make the voltage supplied to other modules cleaner. It is connected in parallel with C7. The chip's V-pin 4 is directly grounded. In this embodiment, the connection method between the step-down chip U3 of the sensor and communication power supply step-down module and R16, C15, R15, C13, L4, D4, R14, C14, C16, C17, GND, the power input terminal, and the step-down output terminal is the same as the connection method between the step-down chip U1 and R3, C3, R1, C1, L1, D1, R2, C2, C7, C8, GND, the power input terminal, and the step-down output terminal. The chip type of the step-down module is not limited to MC34063; chips with the same function, such as AH3202, TMI3252, and TPS62142, can be used. Other types of Schottky diodes, or even other diodes, can be used as freewheeling diodes.In this embodiment, the microcontroller control unit uses the STM32F103C8 series as the core controller and adopts a minimum system peripheral circuit design, which can be divided into a reset circuit, a clock circuit, a filter circuit, and a startup configuration circuit. In the reset circuit, the NRST pin is connected to the power supply through a pull-up resistor R4, and a parallel capacitor C4 is grounded. It is also connected to ground via a button. When power is applied, the capacitor charges, creating a brief low level, achieving automatic power-on reset. Pressing the button pulls NRST low, enabling manual reset. In the clock circuit, a 28MHz crystal oscillator is connected between the OSCIN and OSCOUT pins. The two ends of the crystal oscillator are grounded through capacitors C9 and C10 respectively, providing appropriate load capacitance to ensure stable oscillation. A high-value resistor R7 is connected in parallel between OSCIN and OSCOUT to provide a feedback path, assisting the crystal oscillator in starting up and improving stability. In the power supply filtering section, the analog power pin VDDA is connected to the main power supply through resistor R5 to isolate digital power supply noise. Capacitors C5 and C6 are connected in parallel between VDDA and ground for low-frequency and high-frequency filtering, respectively, thus providing a stable and low-noise power supply for the internal analog circuits. In the startup configuration circuit, the BOOT0 pin is grounded through pull-down resistor R6, keeping it at a low level by default, ensuring that the microcontroller starts the user program from internal memory after power-on. In addition, the VBAT pin is connected to the power supply to provide continuous power for functions such as the internal real-time clock. The entire peripheral circuit, through the above connection method, realizes the basic functions of stable power supply, reliable reset, stable clock, and low-noise operation of the microcontroller. In the embodiment, the microcontroller receives sensor signals through PA1, uses PA9 and PA10 for serial communication with the Ethernet communication module, PB2 outputs high and low level control signals to drive two electromagnets simultaneously, and PB7 receives external button signal input. The microcontroller type is not limited to the STM32F103C8 series; other types of 32-bit microcontrollers, or even microcontrollers such as ESP32 and 51, can be used. The electromagnet drive module consists of a MOSFET switching circuit, used to drive the electromagnet to generate electromagnetic force to attract the iron plate on the baffle, causing the baffle to move. The IO level output by the microcontroller PB1 is applied to the MOSFET gate after passing through a current-limiting resistor. A high level turns the MOSFET on, energizing the electromagnet coil; a low level turns the MOSFET off, de-energizing the electromagnet coil. In this embodiment, electromagnet 1 and electromagnet 2 are used to distinguish the two electromagnets. R8 and L2 are connected in series as the equivalent model of electromagnet 1, and R9 and L3 are connected in series as the equivalent model of electromagnet 2. One end of electromagnet 1 and electromagnet 2 are connected to the power input, and the other end is connected to the drain of two MOSFETs Q1 and Q2, respectively. In this embodiment, IRLZ44N is used. In addition, freewheeling diodes D2 and D3 are connected in parallel across the two electromagnets, respectively. In this embodiment, 1N4007 diodes are used, but other types of transistors can also be used to absorb the back electromotive force generated when the electromagnet is de-energized, protecting the drive circuit.Two filter capacitors, C11 and C12, are connected in parallel between the input terminal of the drive module and GND to further filter out high-frequency and low-frequency noise from the input voltage. R10 and R12 are gate resistors, connecting the microcontroller PB2 and the gate of the MOSFET, limiting the gate charging and discharging current and suppressing oscillation. R11 and R13 are pull-down resistors, connecting the MOSFET gate and GND to prevent the MOSFET from being mis-converted. The sensor signal output module consists of a column-type pressure sensor and an instrumentation amplifier. Its weak differential output signal is amplified by the instrumentation amplifier, then filtered by RC and sent to the PA1 terminal of the microcontroller, where it is acquired by the microcontroller's internal ADC. In this embodiment, the column-type pressure sensor is powered by a step-down voltage from the sensor and a communication step-down module, with the power supply input being VCC and the sensor GND directly grounded. The sensor outputs OUT+ and OUT- are connected to the +IN and -IN differential signal inputs of the instrumentation amplifier, which in this embodiment is AD623. The instrumentation amplifier is not limited to AD623; other types such as AD620 and INA128 can be used. The AD623's -VS and REF are directly grounded; R17 is connected between +RG and -RG as a feedback resistor; +VS is also connected to the 5V output voltage of the step-down converter; OUTPUT is connected to the RC filter output by R18 and C18, and then input to the microcontroller's PA1 to further filter out noise and ensure acquisition accuracy. In this embodiment, the Ethernet communication module is also powered by the sensor and the communication power supply step-down module, connected to VCC, and GND is also directly grounded. RX is connected to PA9, and TX is connected to PA10. PA9 and PA10 are the USART1 interface of the STM32F103C8 series microcontroller. This module actually includes an Ethernet communication section, an integrated router, and a built-in antenna to realize external communication functions. The button module consists of a pull-up resistor R21 and a tactile switch. R21 is connected to the 3.3V voltage output by the microcontroller power supply step-down module and PB7, while the button is connected to PB7 and GND. Under normal conditions, PB7 is kept at a high level due to the pull-up resistor. When the button is pressed, the PB7 ground voltage becomes 0, triggering the microcontroller response through an external interrupt. The above modules work together to achieve integrated control board functions such as electromagnet drive, pressure signal acquisition, external communication and button control, reducing the connection complexity caused by discrete modules and improving the stability and reliability of the overall structure.

[0031] This invention innovatively proposes a two-stage gradient buffer and shock absorption structure. The male end uses an EVA foam pad tightly attached to the pressure plate, utilizing its high elasticity to absorb the initial impact kinetic energy; the female end uses a pressure plate spring assembly and a column-type pressure sensor to construct a two-stage buffer system. The spring compression stroke further dissipates the residual impact force, while the sensor monitors the pressure data in real time and feeds it back to the control board.

[0032] This invention develops an electromagnetic-mechanical coupling self-locking mechanism. Based on the dynamic locking principle of a baffle: during docking, the female electromagnet is energized to attract the baffle plate, causing it to retract; when the sensor detects pressure reaching a set threshold, ensuring the male / female pressure plates are below the baffle, the control board immediately cuts off the current, and a spring pushes the baffle outward to the limit block, forming a mechanical hard lock. The baffle uses a self-lubricating material to reduce the coefficient of friction and ensure reliable operation. To prevent the baffle from rebounding after impacting the limit block, which could cause the locking function to fail or become unreliable, a corresponding blocking mechanism is designed beside the slide. This blocking mechanism does not obstruct the movement of the baffle as it slides past; when the baffle rebounds after impact, the metal baffle in the blocking mechanism restricts the displacement of the baffle, ensuring a firm lock. Upon separation, re-energizing the electromagnet releases the lock.

[0033] This invention achieves dual-mode redundant separation control. A physical button is used to locally trigger the electromagnet's energization, and an integrated Ethernet communication module supports remote command separation between the PC and the controller. The dual-channel design satisfies both manual emergency response in sudden situations and adapts to cluster control in automated systems.

[0034] This invention constructs a highly integrated electronic state management platform. The control board highly integrates multiple functional modules: a step-down module manages battery power; a microcontroller (MCU) monitors and processes sensor data and communication information, issuing on / off commands for the electromagnet; a sensor signal output module converts spring pressure input into voltage output; an electromagnet MOSFET drive module switches the electromagnet on and off according to commands from the MCU to achieve locking and releasing; in addition, there are peripheral circuits connected to the device buttons to ensure the reliability of pressing. Through these modules, the system can respond quickly, connect stably, and achieve visualized monitoring of connection quality.

Claims

1. A shaft module connection damping device, comprising a male connector and a female connector, characterized in that: The male connector includes a male connector housing (1), a male connector pressure plate (2), a male connector cover plate (4), a male connector small pressure plate (5), a first spring (6), and a first spring seat (7). The male connector cover plate (4) is fixedly connected to the male connector housing (1), and the male connector pressure plate (2) is fixedly connected to the male connector small pressure plate (5). A first EVA foam pad (3) is provided on the male connector pressure plate (2). The female head includes a female head housing (8), a female head cover plate (18), a female head pressure plate (14), a female head small pressure plate (19), a second spring (11), a third spring (20), a second spring seat (21), a third spring seat (23), a fourth spring seat (25), a baffle (12), an iron sheet (15), a baffle limiting block (13), an electromagnet (10), a pressure sensor (22), a control board (16), a battery (24), a button (17), and a blocking mechanism; The female head cover plate (18) is fixedly connected to the female head housing (8), the female head pressure plate (14) is fixedly connected to the female head small pressure plate (19), the baffle (12) is slidably disposed in the slide rail inside the female head housing (8), the iron piece (15) is fixed on the baffle (12), the electromagnet (10) is fixed inside the female head housing (8) and is used to attract the iron piece (15) to drive the baffle (12) to slide, the second spring (11) is connected between the baffle (12) and the inner wall of the female head housing (8), and the baffle limiting block (13) is disposed on the outside of the slide rail to limit the sliding stroke of the baffle (12); The blocking mechanism is located on the side of the slide and is used to limit the rebound displacement of the baffle (12) after the baffle (12) hits the baffle limiting block (13); The pressure sensor (22) is connected to the third spring (20) through the second spring seat (21), and the third spring (20) is disposed between the female head pressure plate (14) and the pressure sensor (22); the control board (16) is electrically connected to the electromagnet (10), the pressure sensor (22), the battery (24) and the button (17) respectively.

2. The shaft module connection vibration damping device according to claim 1, characterized in that: The control board (16) is fixed inside the female head housing (8). The control board (16) integrates a microcontroller, a first step-down module, a second step-down module, an electromagnet drive module, a sensor signal processing module, and a communication module. The battery (24) is fixed inside the female head housing (8). The battery (24) is electrically connected to the first step-down module and the second step-down module respectively. The first step-down module is electrically connected to the microcontroller to supply power to the microcontroller. The second step-down module is electrically connected to the pressure sensor (22) and the communication module respectively to supply power. The signal output terminal of the pressure sensor (22) is electrically connected to the input terminal of the sensor signal processing module. The output terminal of the sensor signal processing module is electrically connected to the signal input terminal of the microcontroller. The microcontroller controls the on / off state of the electromagnet drive module according to the received pressure signal. The output terminal of the electromagnet drive module is electrically connected to the electromagnet (10). The button (17) is located on the outside of the female housing (8), and the button (17) is electrically connected to the signal input terminal of the microcontroller; the communication module is electrically connected to the communication interface of the microcontroller and is used to receive external control commands.

3. The shaft module connection vibration damping device according to claim 1, characterized in that: The first EVA foam pad (3) is attached to the surface of the male head pressure plate (2); the female head housing (8) is also provided with a second EVA foam pad (9), which is attached to the surface of the female head housing (8).

4. The shaft module connection vibration damping device according to claim 1, characterized in that: The baffle (12) is made of self-lubricating material. The bottom of the baffle (12) is provided with a boss structure. The slide is narrow at the top and wide at the bottom to prevent the baffle (12) from detaching from the slide in the vertical direction.

5. A shaft module connection vibration damping device according to claim 1, characterized in that: Two fourth spring seats (25) are provided. The two ends of the second spring (11) are fixed to the baffle (12) and the inner wall of the female head housing (8) respectively through the fourth spring seats (25).

6. A shaft module connection vibration damping device according to claim 1, characterized in that: One end of the third spring (20) is connected to the third spring seat (23), which is fixed to the bottom of the female head small pressure plate (19); the other end of the third spring (20) is connected to the second spring seat (21), and the pressure sensor (22) is connected to the second spring seat (21) by a double-ended stud.

7. A shaft module connection vibration damping device according to claim 1, characterized in that: The iron sheet (15) is fixed to the baffle (12) by bolts; the electromagnet (10), the pressure sensor (22) and the control board (16) are respectively fixed to the female head housing (8) by bolts; the blocking mechanism includes a third EVA foam pad (26) and a metal baffle (27), the third EVA foam pad (26) is disposed on the side of the slide, and the metal baffle (27) is disposed on the third EVA foam pad (26); the metal baffle (27) is in the shape of a "7" and is tilted when the baffle (12) is attracted by the electromagnet (10); The baffle (12) is provided with lugs on both sides. When the baffle (12) is released, the lugs press over the metal baffle (27) and deform the third EVA foam pad (26). When the baffle (12) rebounds, the lugs are limited by the metal baffle (27). The baffle limiting block (13) is fixed to the outside of the slide by bolts.

8. A shaft module connection vibration damping device according to claim 1, characterized in that: The male head housing (1) and the female head housing (8) are respectively provided with threaded holes for fixing to the shaft module by bolts.

9. A shaft module connection vibration damping device according to claim 1, characterized in that: The electromagnet driving module is a MOSFET driving module, which includes a MOSFET, a gate resistor, a pull-down resistor, a freewheeling diode, and a filter capacitor. The control signal output terminal of the microcontroller is connected to the gate of the MOSFET via the gate resistor. The pull-down resistor is connected between the gate of the MOSFET and ground. One end of the electromagnet (10) is connected to the power supply, and the other end is connected to the drain of the MOSFET. The freewheeling diode is connected in parallel across the two ends of the electromagnet (10). The filter capacitor is connected in parallel between the input terminal of the MOSFET driving module and ground. The sensor signal processing module includes an instrumentation amplifier and an RC filter. The differential signal output terminal of the pressure sensor (22) is connected to the differential signal input terminal of the instrumentation amplifier, and the output terminal of the instrumentation amplifier is connected to the analog-to-digital conversion pin of the microcontroller via the RC filter. The communication module is an Ethernet communication module, which includes an Ethernet communication chip, an integrated router, and a built-in antenna. The receiving end of the Ethernet communication module is electrically connected to the transmitting end of the microcontroller, and the transmitting end of the Ethernet communication module is electrically connected to the receiving end of the microcontroller. The button (17) is electrically connected to the microcontroller through a button peripheral circuit. The button peripheral circuit includes a pull-up resistor and a tactile switch. One end of the pull-up resistor is connected to the output terminal of the first step-down module and the other end is connected to the button signal input terminal of the microcontroller. One end of the tactile switch is connected to the button signal input terminal of the microcontroller and the other end is grounded. The button signal input terminal of the microcontroller is at a high level under normal conditions and becomes low level when the button (17) is pressed.

10. A shaft module connection vibration damping device according to claim 2, characterized in that: The electromagnet driving module drives two electromagnets simultaneously. The two electromagnets are a left electromagnet and a right electromagnet, respectively. The left electromagnet and the right electromagnet are respectively located on both sides inside the female head housing (8). The two baffles (12) are respectively matched with the left electromagnet and the right electromagnet.

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