A magnetic-electric activation mechanism production stamping device and method thereof

Abstract

This invention provides a stamping device and method for producing a stamping device using a magnetoelectric activation mechanism, relating to the field of magnetoelectric activation mechanisms. The stamping device and method include a frame and a mold assembly. Two stops in the mold assembly are movable. A guide column mechanism and a hydraulic drive mechanism for controlling the stamping of the armature by the guide column mechanism are mounted on the frame. The guide column mechanism includes two rotating stamping heads, symmetrically arranged. The contact surface of the stamping heads is an arc-shaped curved surface, and the radius of the arc-shaped curved surface increases circumferentially along the stamping head. In this stamping device and method, the movable stops in the mold assembly quickly adjust the width of the forming groove, and the guide column mechanism adjusts the angle of the stamping heads. Together, they achieve compatibility with U-shaped armatures of different widths and opening inclinations, replacing traditional frequent mold-changing operations, reducing mold purchase and maintenance costs, and minimizing downtime.

Description

Technical Field

[0001] This invention relates to the field of magnetoelectric activation mechanisms, specifically to a magnetoelectric activation mechanism for producing stamping devices and methods thereof. Background Technology

[0002] A magnetoelectric activation mechanism is a device that uses the principle of electromagnetic interaction to achieve specific mechanical actions or functions. It is widely used in fields such as automation control, electronic equipment, and precision instruments. Its core working mechanism is to trigger a magnetic effect through an electrical signal, thereby driving the movement of mechanical parts to complete functions such as switch closing, component attraction, and displacement control. The electromagnetic system includes a coil, an iron core, and an armature. The coil generates a magnetic field by passing an electric current and is the energy input component activated by magnetoelectricity. The number of turns, wire diameter, and current of the coil determine the magnetic field strength. The iron core is usually made of high-permeability materials, such as silicon steel sheets or soft iron, and is used to converge and guide the magnetic field to enhance the efficiency of the magnetic circuit. The armature is a movable part that is acted upon by the magnetic field force. It is mostly made of permeable materials, such as iron or steel. Its shape is designed according to functional requirements, such as U-shaped, E-shaped, or cuboid. It is formed by processes such as stamping and can be attracted or repelled in the magnetic field. The cross-sectional shape of the armature must match the cross-section of the iron core to reduce magnetic resistance and increase magnetic flux. If the cross-section of the iron core is rectangular, the cross-section of the armature is usually designed to be rectangular to form a symmetrical closed magnetic circuit. If the magnetic circuit is cylindrical, such as in a solenoid electromagnet, the cross-section of the armature is circular to match the inner diameter of the coil.

[0003] The core purpose of this comprehensive design, which optimizes the magnetic circuit, integrates mechanical processes, and improves manufacturing efficiency based on the magnetoelectric activation mechanism, is to enhance electromagnetic performance and structural reliability in specific scenarios. The armature is often stamped into a U-shape using a stamping device, with a cross-section in the shape of a "U" or a three-dimensional U. Magnetic flux is transmitted simultaneously through the two arms of the U-shape. Compared to a circular armature, the total cross-sectional area of ​​the magnetic circuit is increased, magnetic resistance is reduced, and electromagnetic attraction can be increased by about 30%-50%. The symmetrical distribution of magnetic attraction on both sides can counteract the lateral force during armature movement and reduce friction with the guide groove. For example, in a solenoid valve, a U-shaped armature combined with a double-column iron core results in smoother movement. The horizontal arm of the U-shaped armature and the top of the iron core form a closed magnetic circuit, while the two arms on the open side serve as the main channels for magnetic flux. For example, in an AC contactor, when a U-shaped armature is combined with an E-shaped iron core, the two arms correspond to the two columns of the iron core, and the horizontal arm corresponds to the middle column. When the magnetic circuit is closed, the leakage flux is reduced by 15%-20%, improving energy efficiency.

[0004] In existing stamping equipment, stamping dies are mostly fixed structures, which makes it difficult to adapt to the different width requirements of the "U" shape of the armature. Taking the common AC contactor armature as an example, the opening width of the U-shaped armature is different for different models. Due to the fixed cavity size, traditional dies can only meet the stamping of specific width specifications and cannot realize the production of U-shaped armatures of different widths with the same die. If it is necessary to produce U-shaped armatures of various width specifications, different dies need to be changed, which increases production costs and downtime. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides a magnetoelectric activation mechanism for producing stamping devices and methods, thus solving the problems mentioned in the background section.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a magnetoelectric activation mechanism for producing a stamping device, comprising a frame and a mold assembly, wherein two stops of the mold assembly are for movement, a guide column mechanism and a hydraulic drive mechanism for controlling the guide column mechanism to stamp the armature are mounted on the frame, the guide column mechanism includes two rotating stamping heads, which are symmetrically arranged, the contact surface of the stamping heads is an arc-shaped curved surface, and the radius of the arc-shaped curved surface of the contact surface increases along the circumference of the stamping head, the guide column mechanism also includes a fixed frame, gears and a movable frame for lifting, a central shaft is fixedly connected inside the stamping head, multiple gears are fixedly connected to the central shaft close to it, both central shafts are rotatably connected to the fixed frame, and a rack is fixedly connected to the movable frame, each rack meshing with the gear close to it.

[0007] The frame is equipped with two fixed take-up rollers. The two take-up rollers are equipped with protective pads, and the two ends of the protective pads are wound around the corresponding take-up rollers. The contact surfaces of the two punching heads press against the protective pads and support the protective pads to form a "V" shape.

[0008] Preferably, the hydraulic drive mechanism includes a hydraulic cylinder, an electric actuator, and a lifting frame. The hydraulic cylinder is fixed to the upper part of the frame, and the output end of the hydraulic cylinder and the fixed end of the electric actuator are both fixed at the lifting frame. The output end of the electric actuator is fixedly connected to the moving frame.

[0009] Preferably, the mold assembly further includes a base and hydraulic rods. The base has a forming groove inside, and two stops are located inside the forming groove. The two hydraulic rods are fixed to the two inner side walls of the forming groove, and the output ends of the two hydraulic rods are fixedly connected to the two stops.

[0010] Preferably, both of the stops are in contact with the forming groove of the base.

[0011] Preferably, the molding groove has a sliding groove inside, and two blocks are fixedly connected to sliders, which are slidably connected to the sliding groove.

[0012] Preferably, two connecting frames are fixedly installed on the frame, and two winding wheels are rotatably connected to the two connecting frames respectively.

[0013] Preferably, the outer side of the stop block is provided with a groove, the groove has an inclined structure, and the connection between the inclined surface and the plane is rounded.

[0014] A method for producing a stamping device using a magnetoelectric activation mechanism further includes the following steps:

[0015] S1: Based on the design drawings of the U-shaped armature to be stamped, confirm its width and side tilt angle specifications; check the condition of each component of the stamping device, including the oil circuit sealing of the hydraulic drive mechanism, the stroke accuracy of the electric push rod, and the tightness of the gear and rack meshing, to ensure that the equipment is fault-free;

[0016] S2: Activate the hydraulic rods on both sides of the base forming groove, drive the stop blocks to slide along the slide groove according to the armature width requirements, and precisely adjust the distance between the two stop blocks to complete the adaptation of the forming groove width;

[0017] S3: After the stop is adjusted to the correct position, use a vernier caliper or digital caliper to measure the actual width of the forming groove. The error must be controlled within ±0.1mm.

[0018] S4: Start the electric actuator to drive the moving frame to rise and fall. Through the transmission of rack and gear, the central shaft of the punch head rotates, and the arc surface angle of the two punch heads is adjusted to be consistent with the inclination of the U-shaped opening side of the armature.

[0019] S5: Use an angle gauge to detect the initial angle of the punch head. If the deviation exceeds ±0.5°, perform a second fine adjustment.

[0020] S6: Start the hydraulic cylinder to control the lifting frame to drive the guide column mechanism to descend, so that the punch head contacts the protective pad and ensures that the protective pad forms a stable "V" shaped support structure;

[0021] S7: If the protective pad needs to be replaced, release the brake of the take-up wheel, completely roll up and remove the old protective pad, install the new protective pad and ensure that both ends are firmly wrapped around the take-up wheel. Control the tension of the protective pad by adjusting the damping device of the take-up wheel, so that the protective pad will deform slightly when pressed but not loosen.

[0022] S8: Take 1-2 armatures of the same specification to be processed for trial stamping. Place the armature in the forming groove and fix it by the stop block. Start the hydraulic cylinder to drive the stamping head to stamp. At the same time, control the two stamping heads to rotate synchronously in opposite directions. Observe the forming effect of the armature after trial stamping and check its dimensional accuracy and surface flatness. If the trial stamping product is unqualified, analyze the cause and readjust the mold group, stamping head angle or hydraulic pressure parameters until the trial stamping product meets the quality standards.

[0023] S9: Place the batch of armatures to be processed into the forming groove in sequence, start the stamping device to carry out continuous stamping operation. After every 50-100 pieces of stamping is completed, stop the equipment and check the wear of the protective pad, the surface condition of the stamping head and the stability of the stop position. If the protective pad is obviously worn or torn, replace it in time.

[0024] S10: The stamped U-shaped armature undergoes deburring and cleaning post-processing. An ultrasonic cleaner is used to remove surface oil and metal shavings, and residual debris is cleaned from the mold forming groove and stop surface. Lubricating oil is applied to the gear, rack, and slide transmission parts. The power to the equipment is turned off, and the product specifications, quantity, and equipment operating status of this production are recorded to provide data reference for subsequent production.

[0025] Compared with the prior art, the present invention has the following beneficial effects: the movable stop in the mold assembly can quickly adjust the width of the forming groove, and the guide column mechanism can adjust the angle of the punch head. The two work together to achieve compatibility with U-shaped armatures of different widths and opening inclinations, replacing the traditional frequent mold changing operation, reducing the purchase and maintenance costs of molds, and reducing downtime; the protective pad acts as a buffer medium between the punch head and the armature, avoiding indentations and scratches on the workpiece surface, dispersing stress and reducing damage; the winding wheel is driven by an external motor to wind and unwind the protective pad, and the contact part can be quickly switched after wear, extending the service life of the protective pad, while reducing the wear of the punch head and extending the overall life of the mold; the circumferentially increasing radius of the arc surface of the punch head makes it roll with the protective pad when rotating, the contact point transitions smoothly, the rotation resistance is greatly reduced, and thus energy consumption is reduced. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0027] Figure 2 This is a schematic diagram of the guide column mechanism of the present invention;

[0028] Figure 3 This is a schematic diagram of the fitting of the stamping head and the protective pad of the present invention;

[0029] Figure 4 This is a schematic diagram of the stamping head of the present invention after rotation;

[0030] Figure 5 This is a schematic diagram of the stamping head of the present invention after it rotates again;

[0031] Figure 6 This is a schematic diagram of the structure of the mobile frame of the present invention;

[0032] Figure 7 This is a cross-sectional view of the front view of the mold assembly of the present invention;

[0033] Figure 8 This is a cross-sectional view of the top view of the mold assembly of the present invention;

[0034] Figure 9 This is a schematic diagram of the structure of the stamping head of the present invention.

[0035] In the diagram: 1. Frame; 2. Mold assembly; 201. Forming groove; 202. Stop block; 203. Base; 204. Hydraulic rod; 3. Guide column mechanism; 301. Fixed frame; 302. Gear; 303. Moving frame; 304. Rack; 305. Central shaft; 4. Hydraulic drive mechanism; 401. Hydraulic cylinder; 402. Electric actuator; 403. Lifting frame; 5. Punching head; 6. Winding wheel; 7. Protective pad; 8. Groove. Detailed Implementation

[0036] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0037] It should be noted that all directional indications in the embodiments of this application are only used to explain the relative positional relationship and movement of each component in a specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0038] In this application, unless otherwise expressly specified and limited, the terms "connection," "fixed," etc., should be interpreted broadly. For example, "fixed" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0039] Furthermore, the use of terms such as "first" and "second" in this application is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. If the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed in this application.

[0040] like Figures 1-9As shown, a magnetoelectric activation mechanism for producing a stamping device includes a frame 1 and a die assembly 2. Two stops 202 in the die assembly 2 are used for movement. The die assembly 2 also includes a base 203 and hydraulic rods 204. A forming groove 201 is formed inside the base 203. The two stops 202 are located within the forming groove 201. The two hydraulic rods 204 are respectively fixed to the two inner sidewalls of the forming groove 201. The output ends of the two hydraulic rods 204 are respectively fixedly connected to the two stops 202. The two hydraulic rods 204 cooperate to control the two stops 202 to move in opposite directions, thereby adjusting the distance between the two stops 202 according to the armature width requirements. Both stops 202 are located within the base 203. The forming groove 201 contacts the base 203, which provides support for the stop block 202 and prevents it from shifting to the sides. A sliding groove is provided inside the forming groove 201. Slider blocks are fixedly connected to the two stop blocks 202, and the sliders slide in the sliding groove, further improving the stability of the stop blocks 202 and ensuring stable movement. A groove 8 is provided on the outer side of the stop block 202. The groove 8 has an inclined structure, and the connection between its inclined surface and its flat surface is rounded. A guide column mechanism 3 and a hydraulic drive mechanism 4 for controlling the armature stamping of the guide column mechanism 3 are installed on the frame 1. The guide column mechanism 3 includes two rotating stamping heads 5, which are symmetrically arranged. The column mechanism 3 also includes a fixed frame 301, gears 302, and a movable frame 303 for lifting. A central shaft 305 is fixedly connected inside the punch head 5. Multiple gears 302 are fixedly connected to their adjacent central shafts 305. Both central shafts 305 are rotatably connected to the fixed frame 301. A rack 304 is fixedly connected to the movable frame 303. Each rack 304 meshes with its adjacent gear 302. When the movable frame 303 lifts or lowers, it drives two sets of racks 304 to lift or lower. The two sets of racks 304 respectively drive two sets of gears 302 to rotate. The two sets of gears 302 respectively drive two central shafts 305 to rotate. The two central shafts 305 respectively drive two punch heads 5 to rotate. This allows for adjustment of the angles of the two stamping heads 5. The hydraulic drive mechanism 4 includes a hydraulic cylinder 401, an electric push rod 402, and a lifting frame 403. The hydraulic cylinder 401 is fixed relative to the upper part of the frame 1. The output end of the hydraulic cylinder 401 and the fixed end of the electric push rod 402 are both fixed at the lifting frame 403. The output end of the electric push rod 402 is fixedly connected to the moving frame 303. The hydraulic cylinder 401 can control the movement of the lifting frame 403, thereby controlling the guide column mechanism 3 to stamp the armature. The contact surface of the stamping head 5 is an arc-shaped curved surface, and the radius of the arc-shaped curved surface of the contact surface increases along the circumference of the stamping head 5. When the two stamping heads 5 rotate synchronously in opposite directions, they can adapt to the width requirements of different "U" shapes of the armature.

[0041] A take-up roller 6 is fixed to the frame 1. Two connecting frames are fixedly installed on the frame 1. The two take-up rollers 6 are rotatably connected to the two connecting frames respectively. The connecting frames can provide support for the take-up rollers 6, ensuring that the take-up rollers 6 can rotate stably. Protective pads 7 are provided on the two take-up rollers 6, and the two ends of the protective pads 7 are respectively wrapped around the corresponding take-up rollers 6. The contact surfaces of the two punch heads 5 are pressed against the protective pads 7 and support the protective pads 7 to form a "V" shape. The protective pads 7 can protect the armature surface, prevent the punch head 5 from directly contacting the armature, prevent indentations and scratches, buffer pressure, disperse local stress during punching, reduce damage to the workpiece caused by instantaneous impact force, and reduce frictional wear between the punch head 5 and the armature, reducing wear and maintenance costs.

[0042] A method for producing a stamping device using a magnetoelectric activation mechanism further includes the following steps:

[0043] S1: Based on the design drawings of the U-shaped armature to be stamped, confirm its width and side tilt angle specifications; check the status of each component of the stamping device, including the oil circuit sealing of the hydraulic drive mechanism 4, the stroke accuracy of the electric push rod 402, and the meshing tightness of the gear 302 and rack 304, to ensure that the equipment is fault-free;

[0044] S2: Start the hydraulic rods 204 on both sides of the forming groove 201 of the base 203, drive the stop block 202 to slide along the slide according to the armature width requirement, and precisely adjust the distance between the two stop blocks 202 to complete the adaptation of the width of the forming groove 201.

[0045] S3: After the stop block 202 is adjusted into place, use a vernier caliper or digital caliper to measure the actual width of the forming groove 201. The error must be controlled within ±0.1mm.

[0046] S4: Start the electric push rod 402 to drive the moving frame 303 to rise and fall. Through the transmission of the rack 304 and the gear 302, the central shaft 305 of the punch head 5 is rotated, and the arc surface angle of the two punch heads 5 is adjusted to be consistent with the inclination of the side of the U-shaped opening of the armature.

[0047] S5: Use an angle gauge to detect the initial angle of the punch head 5. If the deviation exceeds ±0.5°, perform a second fine adjustment.

[0048] S6: Start the hydraulic cylinder 401 to control the lifting frame 403 to drive the guide column mechanism 3 to descend, so that the punch head 5 contacts the protective pad 7, ensuring that the protective pad 7 forms a stable “V” shaped support structure.

[0049] S7: If the protective pad 7 needs to be replaced, release the brake device of the take-up wheel 6, completely roll up and remove the old protective pad 7, install the new protective pad 7 and ensure that both ends are firmly wrapped around the take-up wheel 6. By adjusting the damping device of the take-up wheel 6, control the tension of the protective pad 7 so that it produces slight deformation but does not loosen when the protective pad 7 is pressed.

[0050] S8: Take 1-2 armatures of the same specification to be processed for trial stamping. Place the armature in the forming groove 201 and fix it by the stop block 202. Start the hydraulic cylinder 401 to drive the stamping head 5 to stamp. At the same time, control the two stamping heads 5 to rotate synchronously in opposite directions. Observe the forming effect of the armature after trial stamping and check its dimensional accuracy and surface flatness. If the trial stamping product is unqualified, analyze the cause and readjust the mold group 2, the angle of the stamping head 5 or the hydraulic pressure parameters until the trial stamping product meets the quality standard.

[0051] S9: Place the batch of armatures to be processed into the forming groove 201 in sequence, start the stamping device to carry out continuous stamping operation. After completing 50-100 stampings, stop the equipment and check the wear of the protective pad 7, the surface condition of the stamping head 5 and the position stability of the stop block 202. If the protective pad 7 shows obvious wear or tear, replace it in time.

[0052] S10: The stamped U-shaped armature undergoes deburring and cleaning post-processing. An ultrasonic cleaner is used to remove surface oil and metal debris. Residual debris is cleaned from the surface of the forming groove 201 and stop block 202 of mold group 2. Lubricating oil is applied to the gear 302, rack 304, and slide transmission parts. The power to the equipment is turned off. The product specifications, quantity, and equipment operating status of this production are recorded to provide data reference for subsequent production.

[0053] Working principle:

[0054] In mold assembly 2, two movable stops 202 are installed in the forming groove 201 of the base 203, driven by a hydraulic rod 204. When U-shaped armatures of different widths need to be produced, the output end of the hydraulic rod 204 extends and retracts, pushing the stops 202 to slide along the slide groove in the forming groove 201, adjusting the distance between the stops 202. The cooperation between the slider and the slide groove ensures stable movement of the stops 202, avoiding deviation, thereby changing the width of the forming groove 201 to adapt to the positioning requirements of armatures of different specifications. In guide column mechanism 3, the moving frame 303 is connected to the lifting frame 403 of hydraulic drive mechanism 4 through an electric push rod 402. When it is necessary to adjust the angle of the punch head 5, the electric push rod 402 drives the moving frame 303 to rise and fall, and the rack 304 on the moving frame 303 moves accordingly. Since the rack 304 meshes with the gear 302, the rise and fall of the rack 304 drives the gear 302 to rotate, thereby causing the central shaft 305 fixed to the gear 302 to rotate, ultimately realizing the angle adjustment of the punch head 5. The contact surface of the stamping head 5 is an arc-shaped curved surface with a radius that increases circumferentially. By rotating the two stamping heads 5 synchronously in opposite directions, the included angle between them can be changed to adapt to the tilt angle of different U-shaped armature openings. In the hydraulic drive mechanism 4, the hydraulic cylinder 401 is fixed to the upper part of the frame 1, and its output end is connected to the lifting frame 403. After the hydraulic cylinder 401 is activated, the lifting frame 403 drives the guide column mechanism 3 to descend as a whole, so that the stamping head 5 contacts the protective pad 7. The two ends of the protective pad 7 are wound around the take-up rollers 6, forming a "V" shape under the pressure of the stamping head 5. It should be noted that both take-up rollers 6 can be connected to external motors, and the motor drives the take-up rollers 6 to rotate, thereby realizing the take-up and unwinding of the protective pad 7. At this point, the armature to be processed is placed at the stop 202 of the forming groove 201, and located in the groove 8 of the stop 202. The hydraulic cylinder 401 continues to apply pressure, and the stamping head 5 stamps the armature through the protective pad 7 to complete the forming process of the armature. It should be noted that the mold cavity of traditional stamping dies is fixed and cannot be adapted to U-shaped armatures of different widths. This device quickly adjusts the width of the forming groove 201 by using the movable stop 202 in the mold group 2, and adjusts the contact angle by the synchronous reverse rotation of the stamping head 5. Figures 3-5As shown, since the contact surface of the stamping head 5 is an arc-shaped curved surface, and the radius of the arc-shaped curved surface of the contact surface increases along the circumference of the stamping head 5, when the stamping head 5 rotates synchronously in opposite directions, it can adjust the distance between the contact points of the two stamping heads 5 that are far apart from each other, so as to achieve compatibility with U-shaped armatures of different widths and different opening inclinations. This solves the problem of frequent mold replacement required by traditional molds. Thus, through the adaptive adjustment of the mold group 2 and the stamping head 5, various specifications of U-shaped armatures can be produced, reducing the frequency of mold replacement, reducing mold purchase and maintenance costs, and reducing downtime caused by mold replacement, thereby improving production efficiency. Moreover, during stamping, the bottom position of the two stamping heads 5 can squeeze the protective pad 7 to stamp and form the armature. Through the synergistic effect of the protective pad 7 and the winding wheel 6, the protective pad 7 acts as a buffer medium during the stamping process, avoiding direct contact between the stamping head 5 and the armature, and effectively preventing indentations and scratches on the surface of the armature. Meanwhile, the protective pad 7 disperses the stamping stress, reduces the damage to the armature caused by instantaneous impact, reduces the wear of the stamping head 5, and extends the service life of the mold. It should be noted that, since the protective pad 7 will wear out after long-term use, the protective pad 7 can be moved along the stamping head 5 by the winding wheel 6, so that the new part of the protective pad 7 contacts the stamping head 5, thereby improving the service life of the protective pad 7.

[0055] Next, since the contact surface of the stamping head 5 is an arc-shaped curved surface, and the radius of the arc-shaped curved surface of the contact surface increases along the circumference of the stamping head 5, the contact point is easier to smoothly transition when the stamping head 5 rotates. When the contact radius of the stamping head 5 increases or decreases, that is, when the arc-shaped curved surface of the stamping head 5 rotates, it forms a rolling tendency with the protective pad 7, which makes its rotation resistance smaller and reduces energy consumption.

[0056] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. In addition, those skilled in the art can combine and integrate the different embodiments or examples described in this specification.

[0057] Furthermore, the technical solutions of the various embodiments can be combined with each other, but only if they are based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed in this application.

[0058] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A magnetoelectric activation mechanism for producing stamping devices, comprising a frame (1) and a die assembly (2), characterized in that: The two stops (202) of the mold assembly (2) are for movement. A guide column mechanism (3) and a hydraulic drive mechanism (4) for controlling the guide column mechanism (3) to press the armature are installed on the frame (1). The guide column mechanism (3) includes two rotating stamping heads (5), which are symmetrically arranged. The contact surface of the stamping head (5) is an arc-shaped curved surface, and the radius of the arc-shaped curved surface of the contact surface increases along the circumference of the stamping head (5). The guide column mechanism (3) also... The device includes a fixed frame (301), gears (302), and a movable frame (303) for lifting. The stamping head (5) is internally fixedly connected to a central shaft (305). Multiple gears (302) are fixedly connected to the central shaft (305) adjacent to them. Both central shafts (305) are rotatably connected to the fixed frame (301). A rack (304) is fixedly connected to the movable frame (303). Each rack (304) meshes with the gear (302) adjacent to it. The frame (1) is equipped with a winding wheel (6) that is fixed to it. The two winding wheels (6) are provided with protective pads (7), and the two ends of the protective pads (7) are respectively wound around the corresponding winding wheels (6). The contact surfaces of the two punching heads (5) are pressed against the protective pads (7) and support the protective pads (7) to form a "V" shape.

2. The magnetoelectric activation mechanism for producing stamping devices according to claim 1, characterized in that: The hydraulic drive mechanism (4) includes a hydraulic cylinder (401), an electric push rod (402), and a lifting frame (403). The hydraulic cylinder (401) is fixed to the upper part of the frame (1). The output end of the hydraulic cylinder (401) and the fixed end of the electric push rod (402) are both fixed at the lifting frame (403). The output end of the electric push rod (402) is fixedly connected to the moving frame (303).

3. The magnetoelectric activation mechanism for producing stamping devices according to claim 2, characterized in that: The mold assembly (2) also includes a base (203) and hydraulic rods (204). The base (203) has a forming groove (201) inside. Two stops (202) are located inside the forming groove (201). The two hydraulic rods (204) are fixed to the two inner side walls of the forming groove (201) respectively. The output ends of the two hydraulic rods (204) are fixedly connected to the two stops (202) respectively.

4. The magnetoelectric activation mechanism for producing stamping devices according to claim 3, characterized in that: Both of the stops (202) are in contact with the forming groove (201) of the base (203).

5. The stamping device with a magnetoelectric activation mechanism according to claim 4, characterized in that: The forming groove (201) has a sliding groove inside, and two blocks (202) are fixedly connected to sliders, which are slidably connected to the sliding groove.

6. The magnetoelectric activation mechanism for producing stamping devices according to claim 5, characterized in that: Two connecting frames are fixedly installed on the frame (1), and two winding wheels (6) are rotatably connected to the two connecting frames respectively.

7. The magnetoelectric activation mechanism for producing stamping devices according to claim 6, characterized in that: The outer side of the stop block (202) is provided with a groove (8), the groove (8) has a slope structure, and the connection between the slope and the plane is rounded.

8. A method for producing stampings using a magnetoelectric activation mechanism, comprising the steps described in claim 7: S1: Based on the design drawings of the U-shaped armature to be stamped, confirm its width and side tilt angle specifications; check the status of each component of the stamping device, including the oil circuit sealing of the hydraulic drive mechanism (4), the stroke accuracy of the electric push rod (402), and the meshing tightness of the gear (302) and rack (304), to ensure that the equipment is fault-free; S2: Start the hydraulic rods (204) on both sides of the forming groove (201) of the base (203). According to the armature width requirement, drive the stop (202) to slide along the slide, and precisely adjust the distance between the two stop (202) to complete the adaptation of the width of the forming groove (201); S3: After the stop (202) is adjusted into place, use a vernier caliper or digital caliper to measure the actual width of the forming groove (201). The error should be controlled within ±0.1mm. S4: Start the electric push rod (402) to drive the moving frame (303) to rise and fall. Through the transmission of the rack (304) and gear (302), the central shaft (305) of the punch head (5) rotates, and the arc surface angle of the two punch heads (5) is adjusted to be consistent with the inclination of the side of the U-shaped opening of the armature. S5: Use an angle meter to detect the initial angle of the punch head (5). If the deviation exceeds ±0.5°, perform a second fine adjustment. S6: Start the hydraulic cylinder (401) and control the lifting frame (403) to drive the guide column mechanism (3) to descend, so that the punch head (5) contacts the protective pad (7) to ensure that the protective pad (7) forms a stable "V" shaped support structure; S7: If the protective pad (7) needs to be replaced, release the brake device of the take-up wheel (6), completely roll up and remove the old protective pad (7), install the new protective pad (7) and ensure that both ends are firmly wrapped on the take-up wheel (6). By adjusting the damping device of the take-up wheel (6), control the tension of the protective pad (7) so that it produces slight deformation but does not loosen when the protective pad (7) is pressed. S8: Take 1-2 armatures of the same specification to be processed for trial stamping. Place the armature in the forming groove (201) and fix it by the stop block (202). Start the hydraulic cylinder (401) to drive the stamping head (5) to stamp. At the same time, control the two stamping heads (5) to rotate in opposite directions synchronously. Observe the forming effect of the armature after trial stamping and check its dimensional accuracy and surface flatness. If the trial stamping product is not qualified, analyze the reasons and readjust the mold group (2), the angle of the stamping head (5) or the hydraulic pressure parameters until the trial stamping product meets the quality standards. S9: Place the batch of armatures to be processed into the forming groove (201) in sequence, start the stamping device to carry out continuous stamping operation. After completing 50-100 stampings, stop the equipment and check the wear of the protective pad (7), the surface condition of the stamping head (5) and the position stability of the stop block (202). If the protective pad (7) shows obvious wear or tear, replace it in time. S10: The U-shaped armature after stamping is deburred and cleaned. An ultrasonic cleaner is used to remove surface oil and metal debris. The residual debris on the surface of the forming groove (201) and stop (202) of the mold group (2) is cleaned. Lubricating oil is applied to the gear (302), rack (304) and slide transmission parts. The power of the equipment is turned off. The product specifications, quantity and equipment operation status of this production are recorded to provide data reference for subsequent production.

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