Hot die forging pressure equipment with anti-stalling and self-starting functions
By introducing the self-starting function of the stuffy vehicle in the hot die forging pressure equipment, the joint action of the moving block and magnetorheological fluid is used to automatically remove the stuffy vehicle, which solves the problem of stuffy vehicle caused by equipment overload and improves the reliability and production efficiency of the equipment.
Patent Information
- Application Number
- CN202510523552.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-24
- Publication Date
- 2025-07-15
AI Technical Summary
Existing hot die forging pressure equipment is prone to stuffy vehicles under overload, resulting in equipment damage and low production efficiency. The traditional solution is inefficient and has safety risks.
A hot die forging pressure device with self-starting function of the stuffy vehicle is designed. The overload state is detected by the moving block and the controller in the stuffy vehicle is automatically released. The coordinated action of the memory spring and magnetorheological fluid is used to realize the automatic reset of the slider to avoid the equipment being overloaded for a long time.
It realizes automatic removal of the bust in the case of overload, avoids equipment damage, improves production efficiency and equipment reliability, and reduces the need for manual intervention.
Smart Images
Figure CN120306552A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of hot die forging presses, and specifically to a hot die forging pressure device with a function of preventing jamming and self-starting. Background Art
[0002] In the field of hot die forging processing, hot die forging pressure devices play a crucial role. However, existing hot die forging pressure devices face many problems during actual use, especially the jamming phenomenon caused by overload, which seriously affects production efficiency and equipment reliability.
[0003] Hot die forging pressure devices usually work in high-temperature and high-pressure environments to forge metal blanks into various shaped parts. During the forging process, due to various reasons, the equipment may bear a load exceeding its design capacity, resulting in overload. Overload will cause huge resistance to the moving parts of the equipment. Especially when the slider is moving downward, if it encounters too much resistance, it may stay at the bottom dead center position and cannot move, that is, the jamming phenomenon occurs.
[0004] Currently, when traditional hot die forging pressure devices face the problem of overload jamming, manual intervention is usually required to eliminate it. For example, operators need to spend a lot of time and energy checking the cause of equipment failure, and then try to resume the operation of the equipment through manual operation or with the help of external tools. This method is not only inefficient but also has certain safety risks. At the same time, frequent jamming phenomena will also cause serious damage to the mechanical structure of the equipment, such as wear of transmission parts and deformation of slider guides, shortening the service life of the equipment.
[0005] In addition, on some highly automated production lines, the jamming of hot die forging pressure devices will cause the entire production line to stagnate, bringing huge economic losses to enterprises. With the continuous development of industrial production, the requirements for the reliability and automation level of hot die forging pressure devices are getting higher and higher, and the traditional methods for solving the jamming problem can no longer meet the needs of modern production. Summary of the Invention
[0006] The purpose of the present invention is to provide a hot die forging pressure device with a function of preventing jamming and self-starting to solve the problems raised in the prior art.
[0007] To achieve the above purpose, the present invention provides the following technical solutions:
[0008] The described hot die forging press equipment with an anti-stuck and self-starting function includes a mounting frame, a forging unit, an anti-stuck unit, and a controller. The mounting frame is placed on a horizontal foundation. The forging unit is fixedly installed on the mounting frame. The anti-stuck unit is rotatably connected to the forging unit. The anti-stuck unit has the function of releasing the stuck state of the forging unit. The controller is fixedly installed on the mounting frame. The controller is electrically connected to the forging unit and the controller is electrically connected to the anti-stuck unit.
[0009] The mounting frame is used for fixedly installing the forging unit, the anti-stuck unit, and the controller. The forging unit is used for forging parts. The anti-stuck unit is used for automatically releasing the stuck state when the device encounters overload and gets stuck. The controller is used to control the start and stop actions of the forging unit and the anti-stuck unit. When the forging unit is forging parts, if an overload occurs and the unit gets stuck, the anti-stuck unit automatically releases the stuck state, enabling the forging unit to quickly return to the normal working state, avoiding serious damage to the mechanical structure of the equipment caused by frequent stuck phenomena, shortening the service life of the equipment, and at the same time affecting the working efficiency of the production line.
[0010] Further, the forging unit includes a motor, a transmission gear ring, a sub-gear, an eccentric shaft, a connecting rod, a cover plate, a slider, and a forging table. The fixed end of the motor is fixedly installed on the mounting frame. The output end of the motor is rotatably installed inside the mounting frame. The transmission gear ring is fixedly installed on the output shaft of the motor. The sub-gear is meshed with the transmission gear ring. The sub-gear is fixedly installed on the outer surface of the eccentric shaft. Both ends of the eccentric shaft are rotatably installed inside the mounting frame. The connecting rod consists of a straight rod and a ball head. One end of the straight rod of the connecting rod is sleeved on the outer surface of the protruding part of the eccentric shaft, and the ball head end penetrates through the cover plate and is rotatably connected to the anti-stuck unit. The cover plate is fixedly installed at the end of the slider away from the horizontal foundation. The slider is slidably installed on both sides of the mounting frame. The forging table is fixedly installed at the end of the mounting frame close to the horizontal foundation.
[0011] After the forging is transported to the forging table, the controller controls the motor to start, driving the transmission gear ring to rotate. Under the driving action of the sub-gear, the eccentric shaft is driven to rotate, so that the connecting rod on the eccentric shaft drives the cover plate and the slider to move up and down synchronously, thereby completing the forging of the forging on the forging table.
[0012] Further, the anti-stuffiness unit includes a moving frame, a box body, a cover, a large coil, a guide post, a small coil, a fixed cylinder, a memory spring, a moving block, a first electrode plate and a second electrode plate. A spherical groove is formed at one end of the moving frame away from the horizontal base. The ball head end of the connecting rod is rotatably installed in the spherical groove of the moving frame. A rectangular through groove is formed inside the slider. The box body is fixedly installed in the rectangular through groove inside the slider. The cover is fixedly installed at one end of the box body away from the horizontal base. The large coil is evenly wound on the outer surface of the box body. A rectangular groove is formed at one end of the inner wall of the box body. Both ends of the guide post are fixedly installed in the rectangular groove. The surface of the guide post is evenly wound with a coil. A cylindrical through groove is formed at one end of the moving frame close to the guide post. The moving frame is sleeved on the outer surface of the guide post through the cylindrical through groove. A conductive ring is arranged inside the cylindrical through groove of the moving frame. The moving frame is slidably installed inside the box body. The fixed cylinder is composed of an inner cylinder and an outer cylinder. The fixed cylinder is fixedly installed on the inner surface of one end of the box body close to the horizontal base. The small coil is evenly wound on the outer surface of the inner cylinder of the fixed cylinder. One end of the moving block is slidably installed inside the inner cylinder of the fixed cylinder, and the other end is fixedly connected to one end of the moving frame close to the horizontal base. One end of the moving block close to the horizontal base is fixedly connected to the first electrode plate. One end of the first electrode plate close to the horizontal base is fixedly connected to the inner surface of one end of the inner cylinder of the fixed cylinder close to the horizontal base through the memory spring. The second electrode plate is fixedly installed on the inner surface of one end of the inner cylinder of the fixed cylinder away from the horizontal base. The small coil is electrically connected to the first electrode plate.
[0013] Further, the anti-stuffiness unit further includes an elastic support cylinder, an electromagnet, a lifting plate, a rope, a guide rod, a pressing plate, magnetorheological fluid and a speed sensor. One end of the elastic support cylinder is fixedly connected to the inner surface of one end of the box body close to the horizontal base, and the other end is fixedly connected to the outer surface of one end of the moving frame close to the horizontal base. The electromagnet is fixedly installed on the inner surface of one end of the elastic support cylinder close to the horizontal base. The electromagnet is electrically connected to the conductive ring. A magnetic block is fixedly connected to one end of the lifting plate close to the horizontal base. One end of the lifting plate is slidably installed inside the elastic support cylinder, and the other end extends into the moving frame and is fixedly connected to one end of the rope. The other end of the rope is placed on the guide rod and fixedly connected to the pressing plate. The pressing plate is fixedly connected to the moving frame through a telescopic spring. The guide rod is fixedly installed inside the moving frame parallel to the horizontal axis. The inside of the moving frame is filled with magnetorheological fluid. A groove is formed at one end of the moving frame away from the horizontal base. The magnetorheological fluid is connected to the groove through a pipeline. A valve is arranged inside the pipeline. The second electrode plate is electrically connected to the memory spring. The speed sensor is fixedly installed on the outer surface of one end of the moving frame close to the horizontal base.
[0014] When the slider is overloaded and causes a jammed car, the moving frame is subjected to the resistance and drives the moving block to move upward. On the one hand, during the upward movement of the moving block, the magnetic flux changes and a reverse current is generated in the small coil. At this time, the controller detects that a reverse current is generated in the small coil and determines that it is in an overload state. The controller stops the motor from rotating to prevent the equipment from continuing to work normally and complete the next forging action, so that the equipment is in a long-term overload state, causing damage to other parts of the equipment. When the speed sensor detects that the moving block keeps moving, it feeds back a signal to the controller. At this time, the controller controls the valve to open. During the upward movement of the moving block, the first electrode sheet is driven to contact the second electrode sheet. The reverse current in the small coil is transmitted to the second electrode sheet through the first electrode sheet, and finally to the memory spring. After the memory spring is energized, it contracts, thereby pulling the moving block and the moving frame downward, reducing the height and resetting, so that the slider is out of the dead zone and out of the overload state. On the other hand, during the upward movement of the moving frame, the effective coil on the guide column gradually decreases, and the current gradually increases. At this time, the current is transmitted to the electromagnet through the conductive ring on the moving frame. The current received by the electromagnet gradually increases, and the magnetism gradually increases, thereby pulling the lifting plate downward. The moving distance increases, and the lifting plate moves downward and is driven by the rope. The two extrusion plates approach each other and squeeze the magnetorheological fluid inside the moving frame to flow through the pipeline to the groove set above the moving frame. At this time, when the controller detects that the current in the small coil is reverse, it passes current into the large coil to generate a magnetic field, so that the magnetorheological fluid inside the groove changes from liquid to solid, preventing the moving frame from continuing to move upward. When the moving block stops moving for the first time, the speed sensor feeds back a signal to the controller, and the valve does not close. When the moving frame and the moving block move downward under the joint action of the memory spring and the magnetorheological fluid, on the one hand, the speed sensor The movement of the moving block is detected, and the valve always remains open. When the moving frame is reset, the moving block stops moving for the second time, and the speed sensor feeds back a signal to the controller. The controller delays closing the gate valve for a few seconds and stops supplying current to the large coil. The magnetorheological fluid changes from solid to liquid again, so that the magnetorheological fluid enters the interior of the moving frame again through the pipeline. At this time, the valve of the controller is just closed. On the other hand, the effective coil on the guide column gradually increases. The effective coil gradually increases, the current received by the electromagnet gradually decreases, and the magnetic force weakens. The extrusion plate resets under the action of the telescopic spring, thereby resetting the slider and automatically releasing the stuck state.
[0015] Furthermore, the gear ratio between the transmission ring gear and the pinion gear is 1:12.
[0016] For the initial startup, a larger torque is required to overcome the static friction and inertia of the blank. Through the 1:12 gear ratio, the output torque of the motor can be significantly amplified, ensuring that the equipment can start smoothly and start the forging process. At the same time, it is convenient to accurately control the movement speed of the equipment and improve the accuracy and quality of forging.
[0017] Furthermore, the coil on the guide column far away from one end of the horizontal foundation is a current input end.
[0018] In order to provide the electromagnet with a larger current in the overload state, a larger magnetism is generated to pull the lifting plate down, and the extrusion plate is pulled closer to make the magnetorheological fluid flow out, so that the moving frame is reset and the self-starting function of the stalled car is realized.
[0019] Furthermore, the moving block is made of magnet.
[0020] In order to generate currents in different directions in the small coil during the up and down movement of the moving block, the memory spring and the large coil are controlled to make corresponding actions to jointly overcome the stuck state.
[0021] Furthermore, the small coil is electrically connected to the controller, and the large coil is electrically connected to the controller.
[0022] In order to realize the automated operation and rapid response capability of the equipment, improve the efficiency of solving the stuck state and avoid affecting the work efficiency of the production line.
[0023] Compared with the prior art, the present invention has the following beneficial effects:
[0024] 1. When the slider is overloaded and causes a jam, the present invention generates a reverse current in the small coil during the upward movement of the moving block in the anti-jam unit. The controller detects the reverse current and stops the motor from rotating, thereby preventing the device from being in a long-term overload state. At the same time, the valve is controlled to open, and the first electrode sheet contacts the second electrode sheet. The reverse current in the small coil is transmitted to the memory spring, which contracts after being energized, thereby pulling the moving block and the moving frame downward, lowering the height and resetting, so that the slider leaves the dead zone and exits the overload state.
[0025] 2. The present invention gradually reduces the effective coil on the guide column in the anti-suffocation unit, gradually increases the current received by the electromagnet, and increases the distance the lifting plate is pulled downward. Under the action of the rope, the two extrusion plates are pulled to squeeze out the magnetorheological fluid. At this time, when the controller detects that the current in the small coil is in the reverse direction, current is passed into the large coil to generate a magnetic field, thereby changing the magnetorheological fluid inside the groove from liquid to solid, preventing the movable frame from continuing to move upward.
[0026] 3. When the movable frame in the anti-stifling unit of the present invention moves downward to reset, the controller detects that when the movable block stops moving for the second time, it delays closing the gate valve for a few seconds and stops supplying current to the large coil. The magnetorheological fluid changes from solid to liquid again, so that the magnetorheological fluid enters the interior of the movable frame. The controller controls the valve to close. At this time, the effective coil on the guide column gradually increases, the effective coil gradually increases, the current received by the electromagnet gradually decreases, the magnetic force weakens, and the extrusion plate resets under the action of the telescopic spring, thereby resetting the slider and automatically releasing the stuck state. Brief Description of the Drawings
[0027] Figure 1 FIG. 5 is a schematic diagram of the overall external structure of a hot die forging press device with an anti-stuck vehicle self-starting function according to the present invention;
[0028] Figure 2 FIG. 6 is a schematic diagram of the front view structure of a hot die forging press device with an anti-stuck vehicle self-starting function according to the present invention;
[0029] Figure 3 FIG. 7 is a schematic diagram of the top view structure of a hot die forging press device with an anti-stuck vehicle self-starting function according to the present invention;
[0030] Figure 4 FIG. 8 is a schematic diagram of the sectional view structure at A-A of a hot die forging press device with an anti-stuck vehicle self-starting function according to the present invention Figure 3 FIG. 9 is a schematic diagram of the sectional view structure at A-A of a hot die forging press device with an anti-stuck vehicle self-starting function according to the present invention;
[0031] Figure 5 FIG. 10 is a schematic diagram of the partial enlarged view structure at B of a hot die forging press device with an anti-stuck vehicle self-starting function according to the present invention Figure 4 FIG. 11 is a schematic diagram of the partial enlarged view structure at B of a hot die forging press device with an anti-stuck vehicle self-starting function according to the present invention;
[0032] Figure 6 FIG. 12 is a schematic diagram of the internal structure of the fixed cylinder of a hot die forging press device with an anti-stuck vehicle self-starting function according to the present invention.
[0033] In the figure: 1. mounting frame; 2. forging unit; 21. motor; 22. transmission gear ring; 23. sub-gear; 24. eccentric shaft; 25. connecting rod; 26. cover plate; 27. slider; 28. forging table; 3. anti-stuck unit; 31. moving frame; 32. box body; 33. cover; 34. large coil; 35. guide post; 36. small coil; 37. fixed cylinder; 38. memory spring; 39. moving block; 310. first electrode plate; 311. second electrode plate; 312. elastic support cylinder; 313. electromagnet; 314. lifting plate; 315. rope; 316. guide rod; 317. extrusion plate; 318. magnetorheological fluid; 319. speed sensor; 4. controller. Detailed Description of the Invention
[0034] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.
[0035] Embodiment: As Figures 1 - 6 shown, the present invention provides a technical solution:
[0036] As shown Figure 1 in 2 Figures 3 and 4, a hot die forging press equipment with an anti-stalling self-starting function includes a mounting frame 1, a forging unit 2, an anti-stalling unit 3 and a controller 4. The mounting frame 1 is placed on a horizontal foundation. The forging unit 2 is fixedly installed on the mounting frame 1. The anti-stalling unit 3 is rotatably connected to the forging unit 2. The anti-stalling unit 3 has the function of releasing the stalling of the forging unit 2. The controller 4 is fixedly installed on the mounting frame 1. The controller 4 is electrically connected to the forging unit 2 and the controller 4 is electrically connected to the anti-stalling unit 3.
[0037] The mounting frame 1 is used to fixedly install the forging unit 2, the anti-stalling unit 3 and the controller 4. The forging unit 2 is used for forging parts. The anti-stalling unit 3 is used to automatically release the stalling state when the device encounters overload and stalls. The controller 4 is used to control the start and stop actions of the forging unit 2 and the anti-stalling unit 3. When the forging unit 2 is forging parts, if an overload occurs and the stalling phenomenon occurs, the anti-stalling unit 3 automatically releases the stalling state, so that the forging unit 2 quickly returns to the normal working state, avoiding serious damage to the mechanical structure of the equipment caused by frequent stalling phenomena, shortening the service life of the equipment, and at the same time affecting the working efficiency of the production line.
[0038] As shown Figure 2 in 3 Figures 4 and 5, the forging unit 2 includes a motor 21, a transmission gear ring 22, a sub-gear 23, an eccentric shaft 24, a connecting rod 25, a cover plate 26, a slider 27 and a forging table 28. The fixed end of the motor 21 is fixedly installed on the mounting frame 1. The output end of the motor 21 is rotatably installed inside the mounting frame 1. The transmission gear ring 22 is fixedly installed on the output shaft of the motor 21. The sub-gear 23 is meshed and connected to the transmission gear ring 22. The sub-gear 23 is fixedly installed on the outer surface of the eccentric shaft 24. Both ends of the eccentric shaft 24 are rotatably installed inside the mounting frame 1. The connecting rod 25 is composed of a straight rod and a ball head. One end of the straight rod of the connecting rod 25 is sleeved on the outer surface of the convex part of the eccentric shaft 24. The ball head end penetrates through the cover plate 26 and is rotatably connected to the anti-stalling unit 3. The cover plate 26 is fixedly installed at one end of the slider 27 away from the horizontal foundation. The slider 27 is slidably installed on both sides of the mounting frame 1. The forging table 28 is fixedly installed at one end of the mounting frame 1 close to the horizontal foundation.
[0039] After the forging is transported to the forging table 28, the controller 4 controls the motor 21 to start, drives the transmission gear ring 22 to rotate, drives the eccentric shaft 24 to rotate under the driving action of the sub-gear 23, and makes the connecting rod 25 on the eccentric shaft 24 drive the cover plate 26 and the slider 27 to move up and down synchronously, so as to complete the forging of the forging on the forging table 28.
[0040] As shown Figure 4 in 5As shown in FIGS. 5 and 6, the anti-stuffiness unit 3 includes a moving frame 31, a box body 32, a cover 33, a large coil 34, a guide post 35, a small coil 36, a fixed cylinder 37, a memory spring 38, a moving block 39, a first electrode plate 310 and a second electrode plate 311. A spherical groove is formed at one end of the moving frame 31 away from the horizontal base. The ball head end of the connecting rod 25 is rotatably installed in the spherical groove of the moving frame 31. A rectangular through groove is formed inside the slider 27. The box body 32 is fixedly installed in the rectangular through groove inside the slider 27. The cover 33 is fixedly installed at one end of the box body 32 away from the horizontal base. The large coil 34 is evenly wound on the outer surface of the box body 32. A rectangular groove is formed at one end of the inner wall of the box body 32. Both ends of the guide post 35 are fixedly installed in the rectangular groove. The surface of the guide post 35 is evenly wound with a coil. A cylindrical through groove is formed at one end of the moving frame 31 close to the guide post 35. The moving frame 31 is sleeved on the outer surface of the guide post 35 through the cylindrical through groove. A conductive ring is arranged inside the cylindrical through groove of the moving frame 31. The moving frame 31 is slidably installed inside the box body 32. The fixed cylinder 37 is composed of an inner cylinder and an outer cylinder. The fixed cylinder 37 is fixedly installed on the inner surface of one end of the box body 32 close to the horizontal base. The small coil 36 is evenly wound on the outer surface of the inner cylinder of the fixed cylinder 37. One end of the moving block 39 is slidably installed inside the inner cylinder of the fixed cylinder 37, and the other end is fixedly connected to one end of the moving frame 31 close to the horizontal base. One end of the moving block 39 close to the horizontal base is fixedly connected to the first electrode plate 310. One end of the first electrode plate 310 close to the horizontal base is fixedly connected to the inner surface of one end of the inner cylinder of the fixed cylinder 37 close to the horizontal base through the memory spring 38. The second electrode plate 311 is fixedly installed on the inner surface of one end of the inner cylinder of the fixed cylinder 37 away from the horizontal base. The small coil 36 is electrically connected to the first electrode plate 310.
[0041] As Figure 4 , 5As shown in FIGS. 6, the anti-stuffiness unit 3 further includes an elastic support cylinder 312, an electromagnet 313, a lifting plate 314, a rope 315, a guide rod 316, a pressing plate 317, a magnetorheological fluid 318 and a speed sensor 319. One end of the elastic support cylinder 312 is fixedly connected to the inner surface of the box body 32 near the horizontal base end, and the other end is fixedly connected to the outer surface of the moving frame 31 near the horizontal base end. The electromagnet 313 is fixedly installed on the inner surface of the elastic support cylinder 312 near the horizontal base end. The electromagnet 313 is electrically connected to the conductive ring. A magnetic block is fixedly connected to one end of the lifting plate 314 near the horizontal base. One end of the lifting plate 314 is slidably installed inside the elastic support cylinder 312, and the other end extends into the moving frame 31 and is fixedly connected to one end of the rope 315. The other end of the rope 315 is placed on the guide rod 316 and is fixedly connected to the pressing plate 317. The pressing plate 317 is fixedly connected to the moving frame 31 through a telescopic spring. The guide rod 316 is fixedly installed inside the moving frame 31 parallel to the horizontal axis. The inside of the moving frame 31 is filled with the magnetorheological fluid 318. A groove is provided at one end of the moving frame 31 away from the horizontal base. The magnetorheological fluid 318 is connected to the groove through a pipeline. A valve is provided inside the pipeline. The second electrode plate 311 is electrically connected to the memory spring 38. The speed sensor 319 is fixedly installed on the outer surface of the moving frame 31 near the horizontal base end.
[0042] When the slider 27 is overloaded and causes the vehicle to become stuck, the moving frame 31 is subjected to resistance and drives the moving block 39 to move upward. On the one hand, during the upward movement of the moving block 39, the magnetic flux changes, and a reverse current is generated in the small coil 36. At this time, the controller 4 detects that a reverse current is generated in the small coil 36 and determines that it is in an overload state. The controller 4 stops the motor 21 from rotating to prevent the equipment from continuing to work normally and complete the next forging action, which puts the equipment in an overload state for a long time and causes damage to other parts of the equipment. When the speed sensor 319 detects that the moving block 39 keeps moving, it feeds back a signal to the controller 4. At this time, the controller 4 controls the valve to open, and the moving block 39 continues to move upward. During the process, the first electrode sheet 310 is driven to contact the second electrode sheet 311, and the reverse current in the small coil 36 is transmitted to the second electrode sheet 311 through the first electrode sheet 310, and finally transmitted to the memory spring 38. After the memory spring 38 is energized, it contracts, thereby pulling the moving block 39 and the moving frame 31 to move downward, lowering the height and resetting, so that the slider 27 is out of the dead zone and out of the overload state. On the other hand, during the upward movement of the moving frame 31, the effective coil on the guide column 35 is gradually reduced, and the current is gradually increased. At this time, the current is transmitted to the electromagnet 313 through the conductive ring on the moving frame 31. The current received by the electromagnet 313 gradually increases, and the magnetism also gradually increases, thereby pulling the lifting plate 314 to move downward. The distance is increased At this time, the lifting plate 314 moves downward and is driven by the rope 315. The two squeezing plates 317 approach each other and squeeze the magnetorheological fluid 318 inside the mobile frame 31 to flow through the pipeline to the inside of the groove set above the mobile frame 31. At this time, when the controller 4 detects that the current in the small coil 36 is reversed, current is passed into the large coil 34 to generate a magnetic field, so that the magnetorheological fluid 318 inside the groove changes from liquid to solid, preventing the mobile frame 31 from continuing to move upward. When the moving block 39 stops moving for the first time, the speed sensor 319 feeds back a signal to the controller 4, and the valve does not close. When the mobile frame 31 and the moving block 39 move downward under the joint action of the memory spring 38 and the magnetorheological fluid 318, on the one hand, the speed sensor 319 detects the movement of the moving block 39, and the valve remains open. When the moving frame 31 is reset, the moving block 39 stops moving for the second time, and the speed sensor 319 feeds back a signal to the controller 4. The controller 4 delays closing the gate valve for a few seconds and stops supplying current to the large coil 34. The magnetorheological fluid 318 changes from solid to liquid again, so that the magnetorheological fluid 318 enters the interior of the moving frame 31 again through the pipeline. At this time, the valve of the controller 4 is just closed. On the other hand, the effective coil on the guide column 35 gradually increases. The effective coil gradually increases, the current received by the electromagnet 313 gradually decreases, and the magnetic force weakens. The extrusion plate 317 is reset under the action of the telescopic spring, thereby resetting the slider 27 and automatically releasing the stuck state.
[0043] like Figure 4As shown, the tooth ratio of the transmission gear ring 22 to the sub-gear 23 is 1:12.
[0044] To overcome the static friction and inertia force of the blank during initial startup, a larger torque is required. Through the tooth ratio of 1:12, the output torque of the motor 21 can be significantly amplified, ensuring that the equipment can start smoothly and begin the forging process. At the same time, it is convenient to precisely control the movement speed of the equipment, improving the forging accuracy and quality.
[0045] As Figure 4 、 5 shown, the coil on the guide post 35 at the end far from the horizontal base is the current input terminal.
[0046] To provide a larger current to the electromagnet 313 under overload conditions, generate a larger magnetic force to pull the lifting plate 314 down, pull the extrusion plate 317 closer to make the magnetorheological fluid 318 flow out, and reset the moving frame 31, realizing the self-start function of jamming.
[0047] As Figure 6 shown, the moving block 39 is made of magnet.
[0048] To generate currents in different directions in the small coil 36 during the up and down movement of the moving block 39, thereby controlling the memory spring 38 and the large coil 34 to make corresponding actions to jointly overcome the jamming state.
[0049] As Figure 4 、 5 、6 shown, the small coil 36 is electrically connected to the controller 4, and the large coil 34 is electrically connected to the controller 4.
[0050] To achieve the automatic operation and fast response ability of the equipment, improve the efficiency of solving the jamming state, and avoid affecting the working efficiency of the production line.
[0051] The working principle of the present invention:
[0052] After the forging is transported to the forging table 28, the controller 4 controls the motor 21 to start, driving the transmission gear ring 22 to rotate. Under the driving of the sub-gear 23, the eccentric shaft 24 is driven to rotate, so that the connecting rod 25 on the eccentric shaft 24 drives the cover plate 26 and the slider 27 to move up and down synchronously, thereby completing the forging of the forging on the forging table 28.
[0053] When the slider 27 is overloaded and causes the vehicle to become stuck, the moving frame 31 is subjected to resistance and drives the moving block 39 to move upward. On the one hand, during the upward movement of the moving block 39, the magnetic flux changes, and a reverse current is generated in the small coil 36. At this time, the controller 4 detects that a reverse current is generated in the small coil 36 and determines that it is in an overload state. The controller 4 stops the motor 21 from rotating to prevent the equipment from continuing to work normally and complete the next forging action, which puts the equipment in an overload state for a long time and causes damage to other parts of the equipment. When the speed sensor 319 detects that the moving block 39 keeps moving, it feeds back a signal to the controller 4. At this time, the controller 4 controls the valve to open, and the moving block 39 continues to move upward. During the process, the first electrode sheet 310 is driven to contact the second electrode sheet 311, and the reverse current in the small coil 36 is transmitted to the second electrode sheet 311 through the first electrode sheet 310, and finally transmitted to the memory spring 38. After the memory spring 38 is energized, it contracts, thereby pulling the moving block 39 and the moving frame 31 to move downward, lowering the height and resetting, so that the slider 27 is out of the dead zone and out of the overload state. On the other hand, during the upward movement of the moving frame 31, the effective coil on the guide column 35 is gradually reduced, and the current is gradually increased. At this time, the current is transmitted to the electromagnet 313 through the conductive ring on the moving frame 31. The current received by the electromagnet 313 gradually increases, and the magnetism also gradually increases, thereby pulling the lifting plate 314 to move downward. The distance is increased At this time, the lifting plate 314 moves downward and is driven by the rope 315. The two squeezing plates 317 approach each other and squeeze the magnetorheological fluid 318 inside the mobile frame 31 to flow through the pipeline to the inside of the groove set above the mobile frame 31. At this time, when the controller 4 detects that the current in the small coil 36 is reversed, current is passed into the large coil 34 to generate a magnetic field, so that the magnetorheological fluid 318 inside the groove changes from liquid to solid, preventing the mobile frame 31 from continuing to move upward. When the moving block 39 stops moving for the first time, the speed sensor 319 feeds back a signal to the controller 4, and the valve does not close. When the mobile frame 31 and the moving block 39 move downward under the joint action of the memory spring 38 and the magnetorheological fluid 318, on the one hand, the speed sensor 319 detects the movement of the moving block 39, and the valve remains open. When the moving frame 31 is reset, the moving block 39 stops moving for the second time, and the speed sensor 319 feeds back a signal to the controller 4. The controller 4 delays closing the gate valve for a few seconds and stops supplying current to the large coil 34. The magnetorheological fluid 318 changes from solid to liquid again, so that the magnetorheological fluid 318 enters the interior of the moving frame 31 again through the pipeline. At this time, the valve of the controller 4 is just closed. On the other hand, the effective coil on the guide column 35 gradually increases. The effective coil gradually increases, the current received by the electromagnet 313 gradually decreases, and the magnetic force weakens. The extrusion plate 317 is reset under the action of the telescopic spring, thereby resetting the slider 27 and automatically releasing the stuck state.
[0054] It is obvious to those skilled in the art that the present invention is not limited to the details of the above-described exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Thus, all changes that fall within the meaning and scope of the equivalent elements of the claims are intended to be embraced within the present invention. Any reference signs in the claims should not be construed as limiting the claims involved.
Claims
1. A hot die forging press equipment with an anti-stalling self-starting function, characterized in that: The described hot die forging press equipment with anti-stalling self-starting function includes a mounting frame (1), a forging unit (2), an anti-stalling unit (3) and a controller (4). The mounting frame (1) is placed on a horizontal foundation. The forging unit (2) is fixedly installed on the mounting frame (1). The anti-stalling unit (3) is rotatably connected to the forging unit (2). The anti-stalling unit (3) has the function of releasing the stalling of the forging unit (2). The controller (4) is fixedly installed on the mounting frame (1). The controller (4) is electrically connected to the forging unit (2). The controller (4) is electrically connected to the anti-stalling unit (3).
2. The hot die forging press equipment with a function of preventing jamming and self-starting according to claim 1, wherein: The forging unit (2) includes a motor (21), a transmission gear ring (22), a sub-gear (23), an eccentric shaft (24), a connecting rod (25), a cover plate (26), a slider (27) and a forging table (28). The fixed end of the motor (21) is fixedly installed on the mounting frame (1). The output end of the motor (21) is rotatably installed inside the mounting frame (1). The transmission gear ring (22) is fixedly installed on the output shaft of the motor (21). The sub-gear (23) is meshed and connected to the transmission gear ring (22). The sub-gear (23) is fixedly installed on the outer surface of the eccentric shaft (24). Both ends of the eccentric shaft (24) are rotatably installed inside the mounting frame (1). The connecting rod (25) consists of a straight rod and a ball head. One end of the straight rod of the connecting rod (25) is sleeved on the outer surface of the convex part of the eccentric shaft (24). The ball head end penetrates through the cover plate (26) and is rotatably connected to the anti-stalling unit (3). The cover plate (26) is fixedly installed at the end of the slider (27) away from the horizontal foundation. The slider (27) is slidably installed on both sides of the mounting frame (1). The forging table (28) is fixedly installed at the end of the mounting frame (1) close to the horizontal foundation.
3. A hot die forging press equipment with an anti-stalling self-starting function according to claim 2, characterized in that: The anti-stuffiness unit (3) includes a moving frame (31), a box body (32), a cover (33), a large coil (34), a guide post (35), a small coil (36), a fixed cylinder (37), a memory spring (38), a moving block (39), a first electrode plate (310) and a second electrode plate (311). A spherical groove is formed at one end of the moving frame (31) away from the horizontal base. The ball head end of the connecting rod (25) is rotatably installed in the spherical groove of the moving frame (31). A rectangular through groove is formed inside the slider (27). The box body (32) is fixedly installed in the rectangular through groove inside the slider (27). The cover (33) is fixedly installed at one end of the box body (32) away from the horizontal base. The large coil (34) is evenly wound on the outer surface of the box body (32). A rectangular groove is formed at one end of the inner wall of the box body (32). Both ends of the guide post (35) are fixedly installed in the rectangular groove. The surface of the guide post (35) is evenly wound with a coil. A cylindrical through groove is formed at one end of the moving frame (31) close to the guide post (35). The moving frame (31) is sleeved on the outer surface of the guide post (35) through the cylindrical through groove. A conductive ring is arranged inside the cylindrical through groove of the moving frame (31). The moving frame (31) is slidably installed inside the box body (32). The fixed cylinder (37) is composed of an inner cylinder and an outer cylinder. The fixed cylinder (37) is fixedly installed on the inner surface of one end of the box body (32) close to the horizontal base. The small coil (36) is evenly wound on the outer surface of the inner cylinder of the fixed cylinder (37). One end of the moving block (39) is slidably installed inside the inner cylinder of the fixed cylinder (37), and the other end is fixedly connected to one end of the moving frame (31) close to the horizontal base. One end of the moving block (39) close to the horizontal base is fixedly connected to the first electrode plate (310). The first electrode plate (310) close to the horizontal base is fixedly connected to the inner surface of one end of the inner cylinder of the fixed cylinder (37) close to the horizontal base through the memory spring (38). The second electrode plate (311) is fixedly installed on the inner surface of one end of the inner cylinder of the fixed cylinder (37) away from the horizontal base. The small coil (36) is electrically connected to the first electrode plate (310).
4. The hot die forging press equipment with the function of preventing jamming and self-starting according to claim 2, characterized in that: The anti-stuffiness unit (3) further includes an elastic support cylinder (312), an electromagnet (313), a lifting plate (314), a rope (315), a guide rod (316), a pressing plate (317), magnetorheological fluid (318) and a speed sensor (319). One end of the elastic support cylinder (312) is fixedly connected to the inner surface of the box body (32) near the horizontal base end, and the other end is fixedly connected to the outer surface of the moving frame (31) near the horizontal base end. The electromagnet (313) is fixedly installed on the inner surface of the elastic support cylinder (312) near the horizontal base end. The electromagnet (313) is electrically connected to the conductive ring. A magnetic block is fixedly connected to one end of the lifting plate (314) near the horizontal base. One end of the lifting plate (314) is slidably installed inside the elastic support cylinder (312), and the other end extends into the moving frame (31) and is fixedly connected to one end of the rope (315). The other end of the rope (315) is placed on the guide rod (316) and is fixedly connected to the pressing plate (317). The pressing plate (317) is fixedly connected to the moving frame (31) through a telescopic spring. The guide rod (316) is fixedly installed inside the moving frame (31) parallel to the horizontal axis. The inside of the moving frame (31) is filled with magnetorheological fluid (318). A groove is provided at one end of the moving frame (31) away from the horizontal base. The magnetorheological fluid (318) is connected to the groove through a pipeline, and a valve is provided inside the pipeline. The second electrode plate (311) is electrically connected to the memory spring (38). The speed sensor (319) is fixedly installed on the outer surface of the moving frame (31) near the horizontal base end.
5. A hot die forging press device with an anti-stalling self-starting function according to claim 2, characterized in that: The tooth number ratio of the transmission gear ring (22) to the sub-gear (23) is 1:
12.
6. The hot die forging press equipment with the function of preventing jamming and self-starting according to claim 3, characterized in that: The coil on the guide post (35) at the end away from the horizontal base is the current input end.
7. A hot die forging press device with an anti-stalling self-starting function according to claim 3, characterized in that: The material of the moving block (39) is a magnet.
8. A hot die forging press device with an anti-stalling self-starting function according to claim 1, characterized in that: The small coil (36) is electrically connected to the controller (4), and the large coil (34) is electrically connected to the controller (4).