Electromagnetic pressing and bouncing device and method for controlling pressing and bouncing force

Abstract

The invention relates to the technical field of missile launching, and discloses an electromagnetic bullet pressing device and a method for controlling the bullet pressing force, the electromagnetic bullet pressing device comprises a shell, a pressing disc, a pressing rod, a sensor and an electromagnetic chuck, and in the moving process of the pressing rod, the pressing disc is driven to stretch out of a containing space; the sensor is arranged between the pressure plate and the pressure rod; the sensor is suitable for abutting against the second end of the pressing disc and monitoring the pressure between the pressing disc and the pressing rod in real time. The electromagnetic chuck is fixedly arranged in the containing space of the shell, generates magnetic force under the condition that the electromagnetic chuck is powered on, and is suitable for driving the pressing rod to move along the inner wall of the shell. According to the scheme, the magnetic attraction force of the electromagnetic chuck serves as a power source for working of the pressing and bouncing device, the magnetic induction intensity of the electromagnetic chuck is adjusted by controlling pulse current parameters, the purpose of controlling the magnetic attraction force of the electromagnetic chuck is achieved, and therefore the driving force between the pressing rod and the pressing disc is controlled through the electromagnetic chuck; and the pressing elastic force of the pressing elastic device is controlled.

Description

Technical Field

[0001] The present invention relates to the technical field of missile launching, and particularly relates to an electromagnetic pressure spring and a method for controlling the pressure spring force. Background Art

[0002] Rail launching of airborne missiles is one of the main forms of missile launching. Airborne missiles are generally mounted on the carrier platform through an airborne launch rack. The airborne launch rack is mounted on the external hanging point of the carrier platform, and the slider of the airborne missile cooperates with the guide rail of the airborne launch rack for mounting. During launch, to ensure the smooth sliding of the missile on the rail, there is a certain gap between the slider of the airborne missile and the guide rail of the airborne launch rack, which will inevitably cause vibration and left-right swaying of the airborne missile during flight on the carrier platform, bringing serious damage to the structures of the airborne missile and the airborne launch rack and not meeting the requirements for flight with the carrier mounted.

[0003] To solve the problem of vibration and left-right swaying of the airborne missile when mounted on the airborne launch rack and flying with the carrier platform, the airborne launch rack is usually equipped with a pressure spring to apply a vertical constraint to the airborne missile, so that a vertical force other than the gravity of the airborne missile is generated between the slider of the airborne missile and the guide rail of the airborne launch rack, preventing the airborne missile from vibrating and swaying left and right on the rail.

[0004] The pressure spring force provided by the pressure spring for the airborne missile generally comes from a spring or a disc spring. However, after each action of the pressure spring, it is difficult to control the magnitude of the pressure spring force on the airborne missile and the deviation is very large, and the deviation increases with the increase of the working years of the pressure spring.

[0005] During the use of the airborne launch rack, when the deviation of the pressure spring force exerted by the pressure spring on the airborne missile does not meet the technical requirements, manual adjustment of the pressure spring force of the pressure spring is required, increasing the maintenance work of the weapon equipment. Summary of the Invention

[0006] In view of this, the present invention provides an electromagnetic pressure spring and a method for controlling the pressure spring force to solve the problem that manual adjustment of the pressure spring force of the pressure spring is required during the use of the airborne launch rack.

[0007] In a first aspect, the present invention provides an electromagnetic pressure spring, including: A housing with an accommodation space inside; A pressure plate, part of which is located in the accommodation space; the first end of the pressure plate is adapted to abut against the missile slider; A pressure rod arranged in the accommodation space of the housing; the pressure rod is adapted to be slidably connected to the inner wall of the housing; one end of the pressure rod is equipped with a sensor, and the pressure rod is adapted to abut against the second end of the pressure plate through the sensor, and the pressure plate is adapted to extend out of the accommodation space during the movement of the pressure rod; The sensor is disposed between the pressure plate and the pressure rod; the sensor is adapted to abut against the second end of the pressure plate, and the sensor is adapted to monitor the pressure between the pressure plate and the pressure rod in real time. The electromagnetic chuck is fixedly disposed in the accommodation space of the housing. When the electromagnetic chuck is energized, it generates a magnetic force, and the electromagnetic chuck is adapted to drive the pressure rod to move along the inner wall of the housing.

[0008] In this solution, the magnetic suction force of the electromagnetic chuck is used as the power source for the operation of the pressure spring device. By controlling the pulse current parameters, the magnetic induction intensity of the electromagnetic chuck is adjusted to achieve the purpose of controlling the magnetic suction force of the electromagnetic chuck, so as to realize the control of the driving force between the pressure rod and the pressure plate through the electromagnetic chuck, and realize the control of the pressure spring force of the pressure spring device.

[0009] In an alternative embodiment, the pressure plate includes an abutting structure and a sliding structure. The abutting structure is adapted to be in abutting connection with the sensor 4, and the sensor 4 is installed at one end of the pressure rod 3. The pressure between the pressure plate 2 and the pressure rod 3 is monitored in real time through the sensor 4; the sliding structure is adapted to be fixedly connected to the abutting structure; a part of the sliding structure is located in the accommodation space, and the end of the sliding structure away from the abutting structure is adapted to abut against the missile slider. In this solution, the abutting structure of the pressure plate is in abutting connection with the pressure rod. Under the action of the pressure rod, the sliding structure of the pressure plate is adapted to extend out of the accommodation space and abut against the missile slider, and provide a pressure spring force.

[0010] In an alternative embodiment, an installation groove is formed in the pressure rod, and a bolt structure is adapted to be disposed in the installation groove. The bolt structure is adapted to pass through the pressure rod and be fixedly connected to the sensor, and the pressure rod is fixedly connected to the sensor through the bolt structure. In this solution, the pressure rod is fixedly connected to the sensor through the bolt structure, and the pressure rod structure drives the sensor to move synchronously during the movement process, so as to ensure the accuracy of the sensor measurement.

[0011] In an alternative embodiment, the pressure rod includes a first part and a second part. The first part is adapted to be slidably connected to the inner wall of the housing, and the second part is fixedly connected to the first part. The second part is adapted to extend in the extending direction of the accommodation space; the sensor 4 is installed at one end of the second part away from the first part, and the sensor 4 is adapted to abut against the pressure plate. In this solution, the pressure rod is slidably connected to the inner wall of the housing through the first part. Since the pressure rod is connected to the inner wall of the housing throughout the movement process, the stability of the pressure rod during the movement in the direction towards the pressure plate is ensured, and further the stability of the pressure rod driving the pressure plate to move is increased.

[0012] In an alternative embodiment, the housing includes an outer shell and an upper cover. The two ends of the outer shell are provided with a relatively arranged first through hole and a second through hole, and the upper cover is arranged at the first through hole; the pressure plate is adapted to extend out of the accommodation space through the second through hole. The housing is composed of the combination of the outer shell and the upper cover, and its overall structure is simple and concise, reducing the manufacturing difficulty.

[0013] In an alternative embodiment, a protruding portion is provided on the outer periphery of the pressure plate. A receiving groove is formed between the protruding portion and the inner wall of the housing. A spring structure is arranged in the receiving groove. The spring structure is sleeved on the outer surface of the pressure plate, and the end portions of the spring structure are respectively adapted to abut against the protruding portion and the housing; the spring structure drives the pressure plate to move in a direction away from the missile slider. In this solution, due to the provision of the spring structure, when the electromagnetic chuck has no magnetic suction force, the spring structure is in a compressed state, and the spring structure plays a certain supporting role on the pressure plate, so that both the pressure plate and the pressure rod are in a floating state.

[0014] In an alternative embodiment, it further includes: an elastic pad arranged between the pressure rod and the upper cover. In this solution, by providing the elastic pad, the wear between the pressure rod and the upper cover is reduced.

[0015] In an alternative embodiment, it further includes: a cable adapted to pass through the housing and be respectively connected to the sensor and the electromagnetic chuck. In this solution, by providing the cable, power can be provided for the electromagnetic chuck and data of the sensor can be obtained.

[0016] In an alternative embodiment, the second end of the pressure plate is a conical structure. In this solution, by designing the top surface of the pressure plate as a conical top surface, the space between the pressure rod and the pressure plate is increased, preventing the pressure rod and the pressure plate from squeezing the cable.

[0017] In a second aspect, the present invention further provides a method for controlling the pressing force, including the electromagnetic pressing spring device described in any one of the above, and further including the steps: by actively adjusting the control pulse current parameter of the electromagnetic chuck to change the magnetic induction intensity of the electromagnetic chuck, at this time, the magnetic suction force of the pressure rod in the magnetic field environment of the electromagnetic chuck can be adjusted; the magnetic suction force received by the pressure rod is transmitted to the pressure plate through the sensor, and the sensor outputs the pressure between the pressure rod and the pressure plate in real time. According to the pressure output by the sensor in real time, the control pulse current parameter of the electromagnetic chuck is adjusted to control the magnetic suction force of the electromagnetic chuck on the pressure rod, and the pressure between the pressure rod and the pressure plate is adjusted to achieve the control of this pressure. In this solution, the magnetic suction force of the electromagnetic chuck is used as the power source for the operation of the pressing spring device. By controlling the pulse current parameter to adjust the magnetic induction intensity of the electromagnetic chuck, the purpose of controlling the magnetic suction force of the electromagnetic chuck is achieved, so as to realize the control of the driving force between the pressure rod and the pressure plate through the electromagnetic chuck, and realize the control of the pressing force of the pressing spring device. Description of the Drawings

[0018] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the description of the specific embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0019] Figure 1 Internal schematic diagram of an electromagnetic pressure spring device according to an embodiment of the present invention; Figure 2 Schematic diagram of an electromagnetic chuck of an electromagnetic pressure spring device according to an embodiment of the present invention; Figure 3 Overall structural schematic diagram of an electromagnetic pressure spring device according to an embodiment of the present invention; Figure 4 Top view of the housing of an electromagnetic pressure spring device according to an embodiment of the present invention; Figure 5 Schematic diagram of a convex claw of an electromagnetic pressure spring device according to an embodiment of the present invention.

[0020] Explanation of reference numerals: 1. Housing; 11. Outer shell; 1101. First through hole; 1102. Second through hole; 12. Upper cover; 2. Pressure plate; 21. Contact structure; 22. Sliding structure; 3. Pressure rod; 31. Installation groove; 32. Bolt structure; 3001. First part; 3002. Second part; 4. Sensor; 5. Electromagnetic chuck; 51. Convex claw; 6. Elastic pad; 7. Cable; 8. Protrusion; 9. Spring structure; 100. Missile slider. Specific embodiments

[0021] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of the present invention.

[0022] As Figure 1 shown, according to an embodiment of the present invention, on the one hand, an electromagnetic pressure spring device is provided, including: A housing 1 with an accommodation space inside; A pressure plate 2, partially located in the accommodation space; the first end of the pressure plate 2 is adapted to abut against the missile slider 100; The compression rod 3 is arranged in the accommodation space of the housing 1; the compression rod 3 is adapted to be slidably connected to the inner wall of the housing 1; one end of the compression rod 3 is installed with a sensor 4, and the compression rod 3 is adapted to abut against the second end of the pressing plate 2 through the sensor 4. During the movement of the compression rod 3, the pressing plate 2 is driven to extend out of the accommodation space. The sensor 4 is arranged between the pressing plate 2 and the compression rod 3; the sensor 4 is adapted to abut against the second end of the pressing plate 2, and the sensor 4 is adapted to monitor the pressure between the pressing plate 2 and the compression rod 3 in real time. The electromagnetic chuck 5 is fixedly arranged in the accommodation space of the housing 1. When the electromagnetic chuck 5 is energized, it generates magnetic force, and the electromagnetic chuck 5 is adapted to drive the compression rod 3 to move along the inner wall of the housing 1.

[0023] In this solution, the magnetic suction force of the electromagnetic chuck 5 is used as the power source for the operation of the pressure spring device. By controlling the pulse current parameters, the magnetic induction intensity of the electromagnetic chuck 5 is adjusted to achieve the purpose of controlling the magnetic suction force of the electromagnetic chuck 5, so as to realize the control of the driving force between the compression rod 3 and the pressing plate 2 through the electromagnetic chuck 5, and realize the control of the pressing force of the pressure spring device.

[0024] It should be noted that the material of the compression rod 3 is a magnetic metal material, and the compression rod 3 made of magnetic metal material can move under the action of magnetic suction force.

[0025] Furthermore, the pressing plate 2 includes an abutting structure 21 and a sliding structure 22. The abutting structure 21 is adapted to be abutted and connected to the compression rod 3; the sliding structure 22 is adapted to be fixedly connected to the abutting structure 21 or is an integral structure; a part of the sliding structure 22 is located in the accommodation space, and the end of the sliding structure 22 away from the abutting structure 21 is adapted to abut against the missile slider 100. In this solution, the abutting structure 21 of the pressing plate 2 is abutted and connected to the compression rod 3. Under the action of the compression rod 3, the sliding structure 22 of the pressing plate 2 is adapted to extend out of the accommodation space and abut against the missile slider 100, and provide a pressing force.

[0026] It should be noted that in this solution, the abutting structure 21 and the sliding structure 22 are integrally formed. As an alternative implementation, the abutting structure 21 and the sliding structure 22 are connected by bonding or welding. In this solution, the abutting structure 21 is located in the accommodation space, the sliding structure 22 is located below the abutting structure 21, and a part of the sliding structure 22 is located in the accommodation space, and the rest of the sliding structure 22 is adapted to extend out of the accommodation space. During the sliding process of the sliding structure 22, it is slidably connected to the outer shell 11. During the sliding process of the sliding structure 22, the outer shell 11 plays a guiding role for the sliding structure 22, and the stability of the sliding structure 22 during the sliding process can be ensured by the sliding connection between the sliding structure 22 and the outer shell 11.

[0027] Furthermore, an installation groove 31 is formed in the pressure rod 3. A part of the bolt structure 32 is adapted to be arranged in the installation groove 31. The bolt structure 32 is adapted to pass through the pressure rod 3, and the bolt structure 32 is fixedly connected to the sensor 4. The pressure rod 3 is fixedly connected to the sensor 4 through the bolt structure 32. In this solution, the pressure rod 3 is fixedly connected to the sensor 4 through the bolt structure 32. During the movement of the pressure rod 3 structure, the sensor 4 is synchronously driven to move, so as to ensure the accuracy of the measurement by the sensor 4.

[0028] It should be noted that in this solution, the sensor 4 is a micro pressure sensor.

[0029] It should be noted that in this solution, the central axis of the installation groove 31 coincides with the central axis of the pressure rod 3. By providing the installation groove 31, the distance between the bolt structure 32 and the sensor 4 can be shortened, and by providing the installation groove 31, the internal space of the overall structure can be saved. As an alternative practical way, the installation groove 31 may not be designed. If the installation groove 31 is not designed, the bolt structure 32 needs to pass through the entire pressure rod 3 and fixedly connect the sensor 4 to the pressure rod 3. Its installation process is more complex, and a part of the bolt structure 32 will be higher than the top surface of the pressure rod 3 and form a protrusion, which will affect the subsequent installation steps and is time-consuming and laborious.

[0030] Specifically, the bolt structure 32 includes a screw rod passing through and connecting the pressure rod 3 and the sensor 4, and flat washers and spring washers arranged between the screw rod and the pressure rod 3. A threaded hole adapted to be connected to the screw rod is provided at the top of the sensor 4.

[0031] Furthermore, the pressure rod 3 includes a first part 3001 and a second part 3002. The first part 3001 is adapted to be slidably connected to the inner wall of the housing 1. The second part 3002 is fixedly connected to the first part 3001 or is an integral structure. The second part 3002 is adapted to extend in the extending direction of the accommodation space; one end of the second part 3002 away from the first part 3001 is adapted to abut against the pressure plate 2. In this solution, the pressure rod 3 is slidably connected to the inner wall of the housing 1 through the first part 3001. Since the pressure rod 3 is connected to the inner wall of the housing 1 throughout the movement process, the stability of the pressure rod 3 during the movement towards the pressure plate 2 is ensured, and further the stability of the pressure rod 3 driving the pressure plate 2 to move is increased.

[0032] It should be noted that the first part 3001 and the second part 3002 of the compression bar 3 are integrally formed. As an alternative implementation, the first part 3001 and the second part 3002 can also be connected by bonding or welding. In this solution, the first part 3001 is a cylinder with a diameter the same as that of the accommodation space, and the second part 3002 is a cylinder with a diameter smaller than that of the accommodation space, where the installation groove 31 is arranged in the first part 3001 and the second part 3002.

[0033] As Figure 5 shown, it should be noted that a number of convex claws 51 are provided at the bottom of the electromagnetic chuck 5. The number of convex claws 51 are evenly distributed on the bottom edge of the electromagnetic chuck 5, and threaded holes are formed in each convex claw 51. The extending direction of the threaded holes faces the housing 1, and corresponding through holes are also formed in the housing 1 at the positions corresponding to the convex claws 51. The electromagnetic chuck 5 is fixedly connected to the housing 1 by bolts passing through the through holes in the housing 1 and the threaded holes in the convex claws 51 respectively. Specifically, there are six convex claws 51 in this solution.

[0034] As Figure 4 shown, further, the housing 1 includes an outer shell 11 and an upper cover 12. Oppositely arranged first through hole 1101 and second through hole 1102 are provided at both ends of the outer shell 11, and the upper cover 12 is arranged at the first through hole 1101; the pressure plate 2 is adapted to extend out of the accommodation space through the second through hole 1102. The housing 1 is composed of the combination of the outer shell 11 and the upper cover 12, and its overall structure is simple and concise, reducing the manufacturing difficulty.

[0035] It should be noted that in this solution, the outer shell 11 is in the shape of a round barrel, and a first through hole 1101 is opened at the top of the outer shell 11, and a second through hole 1102 is opened at the bottom. In this solution, the upper side is the side of the housing 1 where the first through hole 1101 is opened, and the lower side is the side of the housing 1 where the second through hole 1102 is opened. Specifically, the size of the first through hole 1101 is the same as the diameter size of the outer shell 11, and the size of the second through hole 1102 is designed corresponding to the size of the pressure plate 2. The size of the second through hole 1102 is the same as the size of the pressure plate 2, so that the pressure plate 2 just slidably connects with the second through hole 1102, and it is ensured that the friction force between the second through hole 1102 and the pressure plate 2 will not hinder the movement of the pressure plate 2. In order to further reduce the friction force between the second through hole 1102 and the pressure plate 2, lubricants such as lubricating oil can also be added. The upper cover 12 is a square cover plate in this solution, and can also be circular or other irregular shapes, as long as it can ensure that the upper cover 12 can completely block the first through hole 1101.

[0036] As Figure 3As shown in the figure, it should be noted that since this device needs to be fixed to the airborne launch device, square flanges are provided at both the upper and lower ends of the housing 11. The lower flange is the installation interface of the airborne launch device, and is specifically installed and fixed to the airborne launch device through fasteners. The upper flange is connected to the upper cover 12 through structures such as screws, and is used to block the first through hole 1101.

[0037] Furthermore, a convex portion 8 is provided on the outer periphery of the pressure plate 2. A receiving groove is formed between the convex portion 8 and the housing 1. A spring structure 9 is provided in the receiving groove. The spring structure 9 is sleeved on the outer surface of the pressure plate 2. The end portions of the spring structure 9 are respectively adapted to abut against the convex portion 8 and the housing 1; the spring structure 9 drives the pressure plate 2 to move in a direction away from the missile slider 100. In this solution, due to the provision of the spring structure 9, when the electromagnetic chuck 5 has no magnetic attraction, the spring structure 9 is in a compressed state, and the spring structure 9 plays a certain supporting role on the pressure plate 2, causing both the pressure plate 2 and the pressure rod 3 to be in a floating state. It should be noted that by changing the dimensions of the spring structure 9 and the housing 11, the floating position of the pressure plate 2 can be changed, thereby realizing the change of the initial position of the pressure plate 2 when it is not working, and the output stroke range of the pressure plate 2 can also be changed.

[0038] It should be noted that when the pressure plate 2 is in a floating state, the gap between the pressure rod 3 and the electromagnetic chuck 5 is 2 mm.

[0039] Furthermore, it also includes: an elastic pad 6, which is arranged between the pressure rod 3 and the upper cover 12. In this solution, by providing the elastic pad 6, the wear between the pressure rod 3 and the upper cover 12 is reduced.

[0040] Furthermore, it also includes: a cable 7, which is adapted to pass through the housing 1 and is respectively connected to the sensor 4 and the electromagnetic chuck 5. In this solution, by providing the cable, power can be provided for the electromagnetic chuck 5 and data of the sensor 4 can be obtained.

[0041] It should be noted that a through hole adapted for the cable to pass through is also provided on the housing 11. The cable is used to provide pulsed current for the electromagnetic chuck 5, and to provide power for the sensor 4 and collect data on the sensor 4.

[0042] Furthermore, the top surface of the pressure plate 2 close to the pressure rod 3 is a conical top surface. In this solution, the top surface of the pressure plate 2 close to the pressure rod 3 is the top surface of the abutting structure 21. By designing the top surface of the pressure plate 2 as a conical top surface, the space between the pressure rod 3 and the pressure plate 2 is increased, preventing the pressure rod 3 and the pressure plate 2 from squeezing the cable 7. Since the cable 7 needs to be connected to the electromagnetic chuck 5 and the sensor 4 respectively, designing the top surface of the pressure rod 3 as a conical top surface can increase the space between the pressure rod 3 and the pressure plate 2, thereby increasing the installation space of the cable.

[0043] It should be noted that a circular platform is also provided on the conical top surface, and the diameter of the circular platform is the same as the end face diameter of the pressure sensor 4. Such a design can achieve the equivalent transmission of the force exerted by the sensor 4 on the pressure plate 2, thereby ensuring the accuracy of the data.

[0044] According to an embodiment of the present invention, on the other hand, a method for controlling the pressing force is also provided. The method includes the electromagnetic pressing spring device described in any one of the above, and further includes the steps of: actively adjusting the control pulse current parameters of the electromagnetic chuck 5 to change the magnetic induction intensity of the electromagnetic chuck 5. At this time, the magnetic suction force of the pressure rod 3 in the magnetic field environment of the electromagnetic chuck 5 can be adjusted; the magnetic suction force received by the pressure rod 3 is transmitted to the pressure plate 2 through the sensor 4, and the sensor 4 outputs the pressure between the pressure rod 3 and the pressure plate 2 in real time. According to the pressure output by the sensor 4 in real time, the control pulse current parameters of the electromagnetic chuck 5 are adjusted to control the magnitude of the magnetic suction force of the electromagnetic chuck 5 on the pressure rod 3, and the pressure between the pressure rod 3 and the pressure plate 2 is adjusted to achieve the control of this pressure. In this solution, the magnetic suction force of the electromagnetic chuck 5 is used as the power source for the operation of the pressing spring device, and the magnetic induction intensity of the electromagnetic chuck 5 is adjusted by controlling the pulse current parameters, so as to achieve the purpose of controlling the magnetic suction force of the electromagnetic chuck 5, thereby realizing the control of the driving force between the pressure rod 3 and the pressure plate 2 through the electromagnetic chuck 5, and realizing the control of the pressing force magnitude of the pressing spring device.

[0045] As Figure 1 shown, in the non-working state of the electromagnetic pressing spring device, there is no magnetic suction force on the upper surface of the electromagnetic chuck 5, and the spring structure 9 is in a compressed state, providing an upward force to the pressure plate 2, pushing the micro pressure sensor, the pressure rod 3 and the elastic pad 6 to be in a floating state. The upper cover 12 restricts the floating positions of the pressure plate 2, the micro pressure sensor, the pressure rod 3 and the elastic pad 6. At this time, the gap between the pressure rod 3 and the electromagnetic chuck 5 is 2 mm.

[0046] As Figure 2 shown, when the electromagnetic pressing spring device works, the electromagnetic chuck 5 is magnetized through the cable 7. The upper surface of the electromagnetic chuck 5 has a magnetic suction force, applying a magnetic suction force to the pressure rod 3. The pressure rod 3 moves downward, driving the micro pressure sensor and the pressure plate 2 to move downward synchronously. The pressure plate 2 moves downward by 1.2 mm to contact the slider of the missile, applying a downward force to the slider of the missile, which is the pressing force.

[0047] Although the embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations all fall within the scope defined by the appended claims.

Claims

1. An electromagnetic pressure spring, characterized in that, Comprising: A housing (1) having an accommodation space inside; A pressure plate (2), part of which is located inside the accommodation space; the first end of the pressure plate (2) is adapted to abut against a missile slider (100); A pressure rod (3) disposed inside the accommodation space of the housing (1); the pressure rod (3) is adapted to be slidably connected to the inner wall of the housing (1); one end of the pressure rod (3) is equipped with a sensor (4), and the pressure rod (3) is adapted to abut against the second end of the pressure plate (2) through the sensor (4), and the pressure plate (2) is adapted to extend out of the accommodation space during the movement of the pressure rod (3); A sensor (4) disposed between the pressure plate (2) and the pressure rod (3); the sensor (4) is adapted to abut against the second end of the pressure plate (2), and the sensor (4) is adapted to monitor the pressure between the pressure plate (2) and the pressure rod (3) in real time; An electromagnetic chuck (5) fixedly disposed inside the accommodation space of the housing (1), which generates a magnetic force when energized, and the electromagnetic chuck (5) is adapted to drive the pressure rod (3) to move along the inner wall of the housing (1).

2. The electromagnetic pressure spring according to claim 1, characterized in that, The pressure plate (2) includes a contact structure (21) and a sliding structure (22), the contact structure (21) is adapted to be in contact connection with the sensor (4), the sensor (4) is installed at one end of the pressure rod (3), and the pressure between the pressure plate (2) and the pressure rod (3) is monitored in real time through the sensor (4); the sliding structure (22) is adapted to be fixedly connected to the contact structure (21); part of the sliding structure (22) is located inside the accommodation space, and the end of the sliding structure (22) away from the contact structure (21) is adapted to abut against the missile slider (100).

3. An electromagnetic pressure spring according to claim 1, characterized in that An installation groove (31) is formed in the pressure rod (3), and a bolt structure (32) is adapted to be disposed in the installation groove (31), and the bolt structure (32) is adapted to pass through the pressure rod (3) and be fixedly connected to the sensor (4), and the pressure rod (3) is fixedly connected to the sensor (4) through the bolt structure (32).

4. The electromagnetic pressure spring according to claim 3, characterized in that, The pressure rod (3) includes a first part (3001) and a second part (3002), the first part (3001) is adapted to be slidably connected to the inner wall of the housing (1), the second part (3002) is fixedly connected to the first part (3001), and the second part (3002) is adapted to extend in the extending direction of the accommodation space; the sensor (4) is installed at the end of the second part (3002) away from the first part (3001), and is adapted to abut against the pressure plate (2) through the sensor (4).

5. An electromagnetic pressure spring according to claim 1, characterized in that, The housing (1) includes an outer shell (11) and an upper cover (12), the outer shell (11) is provided with a first through hole (1101) and a second through hole (1102) which are oppositely arranged at both ends, and the upper cover (12) is disposed at the first through hole (1101); the pressure plate (2) is adapted to extend out of the accommodation space through the second through hole (1102).

6. An electromagnetic pressure spring according to claim 1, characterized in that, A convex portion (8) is provided on the outer periphery of the pressure plate (2). A receiving groove is formed between the convex portion (8) and the inner wall of the housing (1). A spring structure (9) is provided in the receiving groove. The spring structure (9) is sleeved on the outer surface of the pressure plate (2). The end portions of the spring structure (9) are respectively adapted to abut against the convex portion (8) and the housing (1). The spring structure (9) drives the pressure plate (2) to move in a direction away from the missile slider (100).

7. An electromagnetic pressure spring according to claim 5, characterized in that, Further included is: An elastic pad (6) is provided between the pressure rod (3) and the upper cover (12).

8. An electromagnetic pressure spring according to claim 1, characterized in that Further included is: A cable (7) is adapted to pass through the housing (1) and is respectively connected to the sensor (4) and the electromagnetic chuck (5).

9. An electromagnetic pressure spring according to claim 2, characterized in that, The second end of the pressure plate (2) is a conical structure.

10. A method for controlling the pressing elastic force, characterized in that, An electromagnetic pressure spring device according to any one of claims 1-9, further comprising the steps of: actively adjusting the control pulse current parameters of the electromagnetic chuck (5) to change the magnetic induction intensity of the electromagnetic chuck (5), so that the magnetic suction force of the electromagnetic chuck (5) on the pressure rod (3) in the magnetic field environment of the electromagnetic chuck (5) can be adjusted; the magnetic suction force received by the pressure rod (3) is transmitted to the pressure plate (2) through the sensor (4), and the sensor (4) outputs the pressure between the pressure rod (3) and the pressure plate (2) in real time. According to the pressure output by the sensor (4) in real time, the control pulse current parameters of the electromagnetic chuck (5) are adjusted to control the magnitude of the magnetic suction force of the electromagnetic chuck (5) on the pressure rod (3), and the pressure between the pressure rod (3) and the pressure plate (2) is adjusted to achieve the control of this pressure.

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