CN120901168A

CN120901168A - Production stamping device and method for magnetoelectric activation mechanism

Info

Publication number: CN120901168A
Application number: CN202511123279.7A
Authority: CN
Inventors: 王吴翔; 雷乐山; 邢伟
Original assignee: Shaanxi Shenlan Defense Technology Co ltd
Current assignee: Shaanxi Shenlan Defense Technology Co ltd
Priority date: 2025-08-12
Filing date: 2025-08-12
Publication date: 2025-11-07
Anticipated expiration: 2045-08-12
Also published as: CN120901168B

Abstract

The invention provides a production stamping device and method for a magneto-electric activation mechanism, and relates to the field of magneto-electric activation mechanisms. The magneto-electricity activation mechanism production stamping device comprises a frame and a die set, wherein two stop blocks of the die set are used for moving, a guide upright post mechanism and a hydraulic driving mechanism for controlling the guide upright post mechanism to punch an armature are arranged on the frame, the guide upright post mechanism comprises two stamping heads for rotating, the two stamping heads are symmetrically arranged, the contact surface of the stamping heads is an arc-shaped curved surface, the radius of the arc-shaped curved surface of the contact surface is gradually increased along the circumferential direction of the stamping heads, the magneto-electricity activation mechanism production stamping device and the magneto-electricity activation method thereof are used for producing the stamping device, the movable stop blocks in the die set rapidly adjust the width of a forming groove, and the guide upright post mechanism is matched with the guide upright post mechanism to realize compatibility of U-shaped armatures with different widths and opening inclinations by adjusting the angle of the stamping heads, so that the conventional frequent die replacement operation is replaced, the die purchase and maintenance cost are reduced, and the downtime is reduced.

Description

Production stamping device and method for magnetoelectric activation mechanism

Technical Field

The invention relates to the field of magnetoelectric activating mechanisms, in particular to a stamping device and a stamping method for producing a magnetoelectric activating mechanism.

Background

The magneto-electric activating mechanism is a device for realizing specific mechanical action or function by utilizing electromagnetic interaction principle and is widely applied to the fields of automatic control, electronic equipment, precise instruments and the like. The electromagnetic system of the electromagnetic system comprises a coil, an iron core and an armature, wherein the coil generates a magnetic field through electrifying and is an energy input component activated by magnetoelectric, the number of turns, the line diameter and the current of the coil determine the magnetic field intensity, the iron core is usually made of high magnetic conductive materials such as silicon steel sheets and soft iron and is used for converging and guiding the magnetic field to enhance the magnetic circuit efficiency, the armature is a movable component acted by magnetic field force and is mostly made of magnetic conductive materials such as iron and steel, the shape of the armature is designed according to the functional requirements, such as U-shaped, E-shaped and cuboid, and the armature can be attracted or repelled in the magnetic field through stamping and other processes, the cross section of the armature is required to be matched with the cross section of the iron core to reduce magnetic resistance and promote magnetic flux, and the cross section of the armature is designed to be rectangular to form a symmetrical closed magnetic circuit if the magnetic circuit is cylindrical, such as a solenoid electromagnet and the cross section of the armature is circular and is matched with the inner diameter of the coil.

The magnetic circuit optimizing, mechanical integration and process efficiency comprehensive design based on the magnetoelectric activating mechanism has the core purposes of improving electromagnetic performance and structural reliability under specific scenes, the armature is punched into a U shape through a punching device, the cross section of the armature is U-shaped or three-dimensional U-shaped, magnetic flux is transmitted through two side arms of the U shape, compared with a single magnetic pole such as a round armature, the total cross section area of the magnetic circuit is increased, magnetic resistance is reduced, electromagnetic attraction can be improved by about 30% -50%, the magnetic attraction on the two sides is symmetrically distributed, lateral force during armature movement can be offset, friction with a guide groove is reduced, for example, the U-shaped armature in the electromagnetic valve is matched with a double-pole core, movement is stable, a cross arm of the U-shaped armature and the top of the core form a closed magnetic circuit, two arms on the opening side serve as main channels of magnetic flux, for example, in an alternating current contactor, when the U-shaped armature is matched with an E-shaped core, the two side arms correspond to two side posts of the core, the cross arm corresponds to a middle post, and when the magnetic circuit is closed, leakage is reduced by 15% -20%, and energy efficiency is improved.

Among the current stamping device, stamping die is fixed knot constructs mostly, is difficult to adapt to the width demand of the different "U" types of armature to common AC contactor armature is exemplified, and the U type armature opening width of different models is different, and traditional mould only can satisfy the punching press of specific width specification because of fixed die cavity size, can't realize the production of same mould to the different width U type armatures, if need the U type armature of multiple width specification of production, need change different moulds, has increased manufacturing cost and downtime.

Disclosure of Invention

Aiming at the defects of the prior art, the invention provides a production stamping device and a production stamping method for a magneto-electric activation mechanism, and solves the problems in the prior art.

The magneto-electricity activating mechanism production stamping device comprises a frame and a die set, wherein two stop blocks of the die set are used for moving, a guide upright post mechanism and a hydraulic driving mechanism for controlling the guide upright post mechanism to stamp an armature are arranged on the frame, the guide upright post mechanism comprises two stamping heads for rotating, the two stamping heads are symmetrically arranged, the contact surface of the stamping head is an arc-shaped curved surface, and the radius of the arc-shaped curved surface of the contact surface increases gradually along the circumferential direction of the stamping head.

The frame is provided with winding wheels fixed relative to the frame, the two winding wheels are provided with protection pads, two ends of each protection pad are respectively wound on the corresponding winding wheels, and contact surfaces of the two stamping heads are extruded at the protection pads and support the protection pads to form a V-shaped structure.

Preferably, the guide upright post mechanism further comprises a fixing frame, gears and a movable frame for lifting, the inner part of the stamping head is fixedly connected with a central shaft, the gears are fixedly connected with the central shaft which is close to the central shaft, the two central shafts are rotationally connected with the fixing frame, racks are fixedly connected on the movable frame, and each rack is meshed and connected with the gears which are close to the racks.

Preferably, the hydraulic driving mechanism comprises a hydraulic cylinder, an electric push rod and a lifting frame, wherein the hydraulic cylinder is fixed relative to the upper part of the frame, the output end of the hydraulic cylinder and the fixed end of the electric push rod are both fixed at the lifting frame, and the output end of the electric push rod is fixedly connected with the moving frame.

Preferably, the die set further comprises a base and a hydraulic rod, the base is internally provided with a forming groove, the two stop blocks are located in the forming groove, the two hydraulic rods are respectively fixed at the two inner side walls of the forming groove, and the output ends of the two hydraulic cylinders are respectively fixedly connected with the two stop blocks.

Preferably, both of the stoppers are in contact with the molding groove of the base.

Preferably, a sliding groove is formed in the forming groove, and two stop blocks are fixedly connected with sliding blocks which are in sliding connection with the sliding groove.

Preferably, two connecting frames are fixedly arranged on the frame, and the two winding wheels are respectively and rotatably connected with the two connecting frames.

Preferably, the outer side of the stop block is provided with a groove, the groove is provided with an inclined surface structure, and the joint of the inclined surface and the plane of the groove is provided with a round angle.

A method of producing a stamping device with a magneto-electric activation mechanism, further comprising the steps of:

S1, confirming specification parameters such as width, side inclination angle and the like of a U-shaped armature to be punched according to a design drawing, checking the states of all parts of the punching device, including oil path tightness of a hydraulic driving mechanism, stroke precision of an electric push rod and meshing tightness of a gear and a rack, and ensuring that equipment has no faults;

S2, starting hydraulic rods on two sides of a forming groove of the base, driving the stop blocks to slide along the sliding grooves according to the width requirement of the armature, and accurately adjusting the distance between the two stop blocks to complete the width adaptation of the forming groove;

s3, measuring the actual width of the forming groove by using a vernier caliper or a digital caliper after the stop block is adjusted in place, wherein the error is controlled within +/-0.1 mm;

s4, starting an electric push rod, driving the movable frame to lift, enabling the central shafts of the stamping heads to rotate through transmission of the racks and the gears, and adjusting the angles of the arc curved surfaces of the two stamping heads to be consistent with the inclination of the side edges of the U-shaped opening of the armature;

s5, detecting an initial angle of the stamping head by using an angle meter, and performing secondary fine adjustment when the deviation exceeds +/-0.5 degrees;

s6, starting a hydraulic cylinder, controlling a lifting frame to drive a guide upright post mechanism to descend, enabling a stamping head to be in contact with a protection pad, and ensuring that the protection pad forms a stable V-shaped supporting structure;

s7, if the protection pad needs to be replaced, loosening a braking device of the winding wheel, completely winding the old protection pad, installing a new protection pad, ensuring that two ends are respectively and firmly wound on the winding wheel, and controlling the tensioning force of the protection pad by adjusting a damping device of the winding wheel so as to generate slight deformation but not to relax as a standard when the protection pad is pressed;

s8, taking 1-2 armatures to be processed with the same specification, performing trial stamping, placing the armatures in a forming groove, positioning and fixing the armatures by a stop block, starting a hydraulic cylinder to drive a stamping head to stamp, simultaneously controlling two stamping heads to synchronously and reversely rotate, observing the armature forming effect after the trial stamping, detecting the dimensional accuracy and the surface flatness of the armature, analyzing the reasons and readjusting the angle or the hydraulic pressure parameters of a die set and the stamping heads if the trial stamping product is unqualified, until the trial stamping product meets the quality standard;

S9, sequentially placing batched armatures to be processed in a forming groove, starting a stamping device to perform continuous stamping operation, suspending equipment after 50-100 stamping is completed, checking abrasion conditions of a protection pad, the surface state of a stamping head and the position stability of a stop block, and if the protection pad is obviously abraded and torn, replacing in time;

And S10, carrying out post-treatment procedures such as deburring and cleaning on the U-shaped armature after stamping, removing greasy dirt and metal scraps on the surface by adopting an ultrasonic cleaner, cleaning residual scraps on the surfaces of a forming groove and a stop block of a die set, smearing lubricating oil on transmission parts such as a gear, a rack and a chute, closing a power supply of the equipment, recording the specification, the quantity and the running condition of the equipment of the product produced at the time, and providing data reference for subsequent production.

Compared with the prior art, the novel die has the advantages that the width of the forming groove is quickly adjusted by the movable stop block in the die set, the guide upright post mechanism is matched with the stamping head by adjusting the angle of the stamping head, the U-shaped armature with different widths and opening inclinations is compatible, the traditional frequent die changing operation is replaced, the die purchase and maintenance cost is reduced, the downtime is reduced, the protection pad serves as a buffer medium between the stamping head and the armature, the surface indentation and scratch of a workpiece are avoided, the damage caused by scattered stress is reduced, the winding wheel is externally connected with the motor to drive the protection pad to retract and release, the contact position can be quickly switched after the abrasion, the service life of the protection pad is prolonged, meanwhile, the abrasion of the stamping head is reduced, the whole service life of the die is prolonged, the arc-shaped surface radius of the stamping head is gradually designed in the circumferential direction, the rolling trend is formed between the stamping head and the protection pad when the stamping head rotates, the contact point is smoothly transited, the rotation resistance is greatly reduced, and the energy consumption is further reduced.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the present invention;

FIG. 2 is a schematic view of the structure of the guide post mechanism of the present invention;

FIG. 3 is a schematic view of the punch head and the protective pad of the present invention mated;

FIG. 4 is a schematic view of the press head of the present invention after rotation;

FIG. 5 is a schematic view of the stamping head of the present invention after further rotation;

FIG. 6 is a schematic view of the structure of the mobile frame of the present invention;

FIG. 7 is a cross-sectional view of a front view of a die set of the present invention;

FIG. 8 is a cross-sectional view of a top view of the die set of the present invention;

fig. 9 is a schematic structural view of a stamping head according to the present invention.

In the figure, 1, a frame; 2, a die set, 201, a forming groove, 202, a stop block, 203, a base, 204, a hydraulic rod, 3, a guide column mechanism, 301, a fixed frame, 302, a gear, 303, a movable frame, 304, a rack, 305, a central shaft, 4, a hydraulic driving mechanism, 401, a hydraulic cylinder, 402, an electric push rod, 403, a lifting frame, 5, a punching head, 6, a winding wheel, 7, a protection pad, 8 and a groove.

Detailed Description

The following description of the embodiments of the present application will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.

It should be noted that all the directional indicators in the embodiments of the present application are only used to explain the relative positional relationship, movement conditions, etc. between the components in a specific posture, and if the specific posture is changed, the directional indicators are correspondingly changed.

In the present application, unless explicitly specified and limited otherwise, the terms "connected," "fixed," and the like are to be construed broadly, and for example, "fixed" may be fixedly connected, detachably connected, or integrally formed, mechanically connected, electrically connected, directly connected, indirectly connected via an intervening medium, or in communication between two elements or in an interaction relationship between two elements, unless otherwise explicitly specified. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art according to the specific circumstances.

Furthermore, descriptions such as those referred to as "first," "second," and the like, are provided for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implying an order of magnitude of the indicated technical features in the present disclosure. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present application.

As shown in fig. 1-9, a stamping device for producing a magneto-electric activation mechanism comprises a frame 1 and a die set 2, wherein two check blocks 202 of the die set 2 are used for moving, the die set 2 also comprises a base 203 and a hydraulic rod 204, a forming groove 201 is formed in the base 203, the two check blocks 202 are all positioned in the forming groove 201, the two hydraulic rods 204 are respectively fixed at two inner side walls of the forming groove 201, output ends of two hydraulic cylinders 401 are respectively fixedly connected with the two check blocks 202, the two hydraulic rods 204 cooperatively control the two check blocks 202 to move in opposite directions, so that the distance between the two check blocks 202 can be adjusted according to armatures with different width requirements, the two check blocks 202 are contacted with the forming groove 201 of the base 203, the base 203 can provide supporting force for the check blocks 202 to prevent the check blocks 202 from shifting towards two sides, a chute is formed in the forming groove 201, the two stop blocks 202 are fixedly connected with sliding blocks, the sliding blocks are in sliding connection with sliding grooves, the stability of the stop blocks 202 is further improved, the stop blocks 202 can stably move, grooves 8 are formed in the outer sides of the stop blocks 202, the grooves 8 are of inclined structures, the joints of inclined surfaces and planes of the inclined surfaces are provided with round angles, a guide upright post mechanism 3 and a hydraulic driving mechanism 4 for controlling the guide upright post mechanism 3 to punch armatures are arranged on the frame 1, the guide upright post mechanism 3 comprises two punching heads 5 for rotating, the two punching heads 5 are symmetrically arranged, the guide upright post mechanism 3 further comprises a fixing frame 301, gears 302 and a moving frame 303 for lifting, central shafts 305 are fixedly connected to the inner parts of the punching heads 5, a plurality of gears 302 are fixedly connected with the central shafts 305 close to the central shafts, the two central shafts 305 are rotatably connected with the fixing frame 301, racks 304 are fixedly connected to the moving frame 303, each rack 304 is meshed with the adjacent gears 302, when the movable frame 303 is lifted, two groups of racks 304 can be driven to lift, the two groups of racks 304 respectively drive the two groups of gears 302 to rotate, the two groups of gears 302 respectively drive the two central shafts 305 to rotate, the two central shafts 305 respectively drive the two stamping heads 5 to rotate, and further, the angle of the two stamping heads 5 can be adjusted, the hydraulic driving mechanism 4 comprises 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 fixed at the lifting frame 403, the output end of the electric push rod 402 is fixedly connected with the movable frame 303, the lifting frame 403 can be controlled to move through the hydraulic cylinder 401, the guide post mechanism 3 is controlled to stamp armatures, the contact surface of the stamping heads 5 is an arc-shaped curved surface, and the arc-shaped curved surface radius of the contact surface is gradually increased along the circumferential direction of the stamping heads 5, and when the two stamping heads 5 synchronously reversely rotate, the different U-shaped width requirements of armatures can be adapted;

The frame 1 is provided with the winding wheel 6 fixed relative to the frame 1, the frame 1 is fixedly provided with two connecting frames, the two winding wheels 6 are respectively connected with the two connecting frames in a rotating way, the connecting frames can provide supporting force for the winding wheels 6, the winding wheels 6 can stably rotate, the two winding wheels 6 are provided with the protection pads 7, the two ends of each protection pad 7 are respectively wound on the corresponding winding wheels 6, the contact surfaces of the two stamping heads 5 are extruded at the protection pads 7 and support the protection pads 7 to enable the protection pads to form a V-shaped structure, the protection pads 7 can protect the armature surface, the stamping heads 5 are prevented from being directly contacted with the armature, indentation and scratch are prevented, the pressure can be buffered, the local stress during stamping is dispersed, the damage of workpieces caused by instant impact force is reduced, the friction loss of the stamping heads 5 and the armature is also reduced, and the abrasion and maintenance cost are reduced.

s1, confirming specification parameters such as width, side inclination angle and the like of a U-shaped armature to be punched according to a design drawing of the U-shaped armature to be punched, checking the states of all parts of the punching device, including oil path tightness of a hydraulic driving mechanism 4, stroke precision of an electric push rod 402 and meshing tightness of a rack 304 of a gear 302, and ensuring no faults of equipment;

S2, starting hydraulic rods 204 on two sides of a molding groove 201 of a base 203, driving a stop block 202 to slide along a sliding groove according to the width requirement of an armature, accurately adjusting the distance between the two stop blocks 202, and completing the width adaptation of the molding groove 201;

S3, measuring the actual width of the forming groove 201 by using a vernier caliper or a digital caliper after the stop block 202 is adjusted in place, wherein the error is controlled within +/-0.1 mm;

S4, starting an electric push rod 402, driving a movable frame 303 to lift, enabling a central shaft 305 of the stamping heads 5 to rotate through transmission of a rack 304 and a gear 302, and adjusting the arc-shaped curved surface angles of the two stamping heads 5 to be consistent with the inclination of the side edge of the U-shaped opening of the armature;

s5, detecting the initial angle of the stamping head 5 by using an angle meter, and performing secondary fine adjustment when the deviation exceeds +/-0.5 degrees;

s6, starting a hydraulic cylinder 401, controlling a lifting frame 403 to drive a guide upright post mechanism 3 to descend, enabling a stamping head 5 to be in contact with a protection pad 7, and ensuring that the protection pad 7 forms a stable V-shaped supporting structure;

S7, if the protection pad 7 needs to be replaced, loosening a braking device of the winding wheel 6, completely winding the old protection pad 7, installing a new protection pad 7, ensuring that two ends are respectively and firmly wound on the winding wheel 6, and controlling the tensioning force of the protection pad 7 by adjusting a damping device of the winding wheel 6 so as to generate slight deformation but not relaxation as a standard when the protection pad 7 is pressed;

s8, taking 1-2 armatures to be processed with the same specification, performing trial stamping, placing the armatures in a forming groove 201, positioning and fixing the armatures by a stop block 202, starting a hydraulic cylinder 401 to drive a stamping head 5 to stamp, simultaneously controlling two stamping heads 5 to synchronously and reversely rotate, observing the armature forming effect after trial stamping, detecting the dimensional accuracy and the surface flatness of the armature, analyzing reasons and readjusting the angles or hydraulic pressure parameters of a die set 2 and the stamping heads 5 if a trial stamping product is unqualified until the trial stamping product meets the quality standard;

S9, sequentially placing batched armatures to be processed in a forming groove 201, starting a stamping device to perform continuous stamping operation, suspending equipment after 50-100 stamping is completed, checking the abrasion condition of a protection pad 7, the surface state of a stamping head 5 and the position stability of a stop block 202, and if the protection pad 7 is obviously abraded and torn, replacing in time;

And S10, carrying out post-treatment procedures such as deburring and cleaning on the U-shaped armature after stamping, removing greasy dirt and metal scraps on the surface by adopting an ultrasonic cleaner, cleaning the residual scraps on the surfaces of the forming groove 201 and the stop block 202 of the die set 2, smearing lubricating oil on transmission parts such as the gear 302, the rack 304 and the sliding groove, closing a power supply of the equipment, recording the specification, the quantity and the running condition of the equipment of the product produced at the time, and providing data reference for the subsequent production.

Working principle:

In the die set 2, two movable stoppers 202 are provided in a molding groove 201 of a base 203, and are driven by a hydraulic rod 204. When U-shaped armatures with different widths are required to be produced, the output end of the hydraulic rod 204 stretches and contracts to push the stop blocks 202 to slide along the sliding grooves in the forming grooves 201, and the spacing between the stop blocks 202 is adjusted. The cooperation of the sliding block and the sliding groove ensures that the stop block 202 moves stably and avoids deflection, thereby changing the width of the forming groove 201 and adapting to the positioning requirements of armatures with different specifications, and in the guide upright post mechanism 3, the moving frame 303 is connected with the lifting frame 403 of the hydraulic driving mechanism 4 through the electric push rod 402. When the angle of the stamping head 5 needs to be adjusted, the electric push rod 402 drives the movable frame 303 to lift, and the rack 304 on the movable frame 303 moves along with the lifting. As the rack 304 is meshed with the gear 302, the lifting of the rack 304 drives the gear 302 to rotate, so that the central shaft 305 fixed with the gear 302 rotates, and finally, the angle adjustment of the stamping head 5 is realized. The contact surface of the stamping heads 5 is an arc-shaped curved surface, the radius is increased gradually along the circumferential direction, the included angle between the two stamping heads 5 can be changed by synchronous reverse rotation, the inclined angle of the two stamping heads can be adapted to the inclined angles of different U-shaped armature openings, and in the hydraulic driving mechanism 4, a hydraulic cylinder 401 is fixed on the upper part of the frame 1, and the output end of the hydraulic cylinder is connected with a lifting frame 403. After the hydraulic cylinder 401 is started, the lifting frame 403 drives the guide upright mechanism 3 to integrally descend, so that the stamping head 5 contacts the protection pad 7. The protection pad 7 both ends twine in the winding wheel 6, form "V" type structure under punching press head 5 extrusion, and it should be noted that, two winding wheels 6 all can external motor, rotate through motor drive winding wheel 6, realize the receive and release to protection pad 7. At this time, the armature to be machined is placed at the stop block 202 of the forming groove 201 and is located at the groove 8 of the stop block 202, the hydraulic cylinder 401 continuously applies pressure, the stamping head 5 punches the armature through the protection pad 7 to finish the forming processing of the armature, and it is to be noted that the die cavity of the traditional stamping die is fixed and cannot be adapted to U-shaped armatures with different widths. The device rapidly adjusts the width of the forming groove 201 through the movable stop block 202 in the die set 2, and adjusts the contact angle in combination with the synchronous reverse rotation of the stamping heads 5, as shown in fig. 3-5, as the contact surface of the stamping heads 5 is an arc-shaped curved surface, and the radius of the arc-shaped curved surface of the contact surface increases gradually along the circumferential direction of the stamping heads 5, the distance between the contact points of the two stamping heads 5 far away from each other can be adjusted when the stamping heads 5 synchronously rotate in the reverse direction, so that the device can realize the functions of different widths, The U-shaped armatures with different opening inclinations are compatible, the problem that the traditional die needs to be replaced frequently is solved, therefore, the U-shaped armatures with various specifications can be produced through the self-adaptive adjustment of the die set 2 and the stamping heads 5, the die replacement frequency is reduced, the die purchase cost and maintenance cost are reduced, meanwhile, the downtime caused by die replacement is reduced, the production efficiency is improved, and when in stamping, the bottommost positions of the two stamping heads 5 can extrude the protection pad 7 to punch the armature, and the protection pad 7 acts as a buffer medium in the stamping process through the synergistic effect of the protection pad 7 and the winding wheel 6, so that the stamping heads 5 are prevented from being in direct contact with the armature, the occurrence of indentation on the surface of the armature is effectively prevented, And (5) scratching. Meanwhile, the protection pad 7 disperses stamping stress, reduces damage of an armature caused by instant impact force, reduces abrasion of the stamping head 5, and prolongs the service life of a die, and the protection pad 7 can be controlled to move along the stamping head 5 through the winding wheel 6 due to abrasion when the protection pad 7 is used for a long time, so that a new part of the protection pad 7 is contacted with the stamping head 5, and the service life of the protection pad 7 is prolonged.

Then, as 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 gradually along the circumferential direction of the stamping head 5, the contact point is easier to smoothly transition when the stamping head 5 rotates, and when the contact radius of the stamping head 5 increases or decreases, namely, the arc-shaped curved surface of the stamping head 5 and the protection pad 7 form a rolling trend when rotating, so that the resistance when rotating is smaller, and the energy consumption is reduced.

In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present application. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, one skilled in the art can combine and combine the different embodiments or examples described in this specification.

In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present application.

Although embodiments of the present 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 therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A magnetoelectric activation mechanism for producing a stamping device, comprising a frame (1) and a mold assembly (2), characterized in that: two stops (202) of the mold assembly (2) are for moving, a guide column mechanism (3) and a hydraulic drive mechanism (4) for controlling the guide column mechanism (3) to stamp the armature are mounted on the frame (1), the guide column mechanism (3) includes two stamping heads (5) for rotating, and the two stamping heads (5) 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 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 a stamping device according to claim 1, characterized in that: the guide column mechanism (3) further includes a fixed frame (301), gears (302) and a movable frame (303) for lifting, a central shaft (305) is fixedly connected inside the stamping head (5), multiple gears (302) are fixedly connected to the central shaft (305) close to them, two central shafts (305) are rotatably connected to the fixed frame (301), and a rack (304) is fixedly connected on the movable frame (303), each rack (304) meshing with the gear (302) close to it.

3. A magnetoelectric activation mechanism for producing a stamping device according to claim 2, 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 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), and the output end of the electric push rod (402) is fixedly connected to the moving frame (303).

4. The magnetoelectric activation mechanism for producing a stamping device according to claim 1, characterized in that: the mold group (2) further includes a base (203) and a hydraulic rod (204), the base (203) has a forming groove (201) inside, two stops (202) are located in the forming groove (201), the two hydraulic rods (204) are respectively fixed at the two inner side walls of the forming groove (201), and the output ends of the two hydraulic cylinders (401) are respectively fixedly connected to the two stops (202).

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

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

7. A magnetoelectric activation mechanism for producing a stamping device according to claim 1, 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.

8. A magnetoelectric activation mechanism for producing a stamping device according to claim 1, characterized in that: the outer side of the stop block (202) is provided with a groove (8), the groove (8) has an inclined surface structure, and the connection between the inclined surface and its plane is rounded.

9. A method for producing a stamping device using a magnetoelectric activation mechanism, comprising the magnetoelectric activation mechanism described in any one of claims 1-8, further comprising the following steps:

S1: Based on the design drawings of the U-shaped armature to be stamped, confirm its width, side tilt angle and other 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 stamped U-shaped armature undergoes deburring, cleaning and other post-processing steps. 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 transmission parts such as gear (302), rack (304), and slide. The power supply of the equipment is turned off. The specifications, quantity and equipment operation status of the products produced this time are recorded to provide data reference for subsequent production.