Forged blank lifting device

Abstract

The invention belongs to the technical field of transportation devices, and particularly relates to a forging blank lifting device which comprises two electric sliding rails and a PLC, the moving ends of the two electric sliding rails are fixedly connected with the same moving plate, and the upper end of the moving plate is fixedly connected with a plurality of symmetrically-arranged hydraulic push rods; the device further comprises a hollow bearing table, a circumferential limiting assembly, a material pulling and pressing assembly, a material supply feedback assembly and a multi-direction transferring assembly. According to the device, self-adaptive clamping can be carried out on the peripheral sides of forging blanks of different sizes to guarantee transferring stability, the tops of the blanks are synchronously pressed, held and limited, traction force is provided for the blanks transferred to the hollow bearing table to strengthen the placing stability, and rapid table entering is assisted; and in addition, the bearing table blanks can be rapidly moved out in the selected direction so as to adapt to various transfer paths, the application range is effectively expanded, and the transfer efficiency and stability are improved.

Description

Technical Field

[0001] This invention belongs to the field of transportation device technology, and in particular relates to a lifting device for forged blanks. Background Technology

[0002] Forged blanks are products formed by forging solid metal billets using a forging machine, and need to be transferred to subsequent equipment for finishing. Currently, forklifts are mostly used for lifting and transferring forged blanks, but this method has obvious limitations: forklifts require a large space for operation and lack steering flexibility; for heavy forged blanks, forklifts lack dedicated reinforcement and clamping mechanisms, and the blanks are prone to displacement due to inertia during transfer, seriously affecting the stability of the conveying process.

[0003] Meanwhile, existing transfer fixtures require special clamps for forging blanks of different sizes and shapes. Not only is it difficult to match the clamps and the purchase and replacement costs are high, but it is also difficult to meet the general transfer needs of multiple types of blanks. In addition, the transfer support platform is usually designed with a high surface roughness structure to ensure the stability of the blank placement. This results in excessive resistance when the forging blanks are unloaded, making the operation extremely inconvenient. Summary of the Invention

[0004] The purpose of this invention is to address the above-mentioned problems by providing a lifting device for forged blanks.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a forging blank lifting device, comprising two electric slide rails and a PLC controller, wherein the moving ends of the two electric slide rails are fixedly connected to the same moving plate, and the upper end of the moving plate is fixedly connected to a plurality of symmetrically arranged hydraulic push rods, and further comprising: a hollow bearing platform, a circumferential limiting component, a material pulling and holding component, a material feeding feedback component, and a multi-directional transfer component, wherein the hollow bearing platform is fixedly connected to the moving ends of the plurality of hydraulic push rods, the circumferential limiting component is disposed on the outside of the hollow bearing platform, the material pulling and holding component is rotatably mounted on the outside of the circumferential limiting component, the material feeding feedback component is connected to the circumferential limiting component and is used to deliver magnetorheological fluid into the circumferential limiting component, the multi-directional transfer component is installed inside the hollow bearing platform, and the upper surface of the hollow bearing platform is provided with a plurality of openings for the top of the multi-directional transfer component to extend out; The circumferential limiting component includes a limiting frame, an elastic silicone capsule fixedly connected to the inner side of the limiting frame, a circumferentially arranged insert groove on the outer side of the limiting frame, and an electromagnetic coil winding installed in the corresponding insert groove. A sealing frame is detachably fixedly connected to the outer side of the limiting frame.

[0006] Preferably, the circumferential limiting component further includes two extension plates symmetrically and fixedly connected to the lower end of the hollow support platform. The extension plates are L-shaped, and two electric push-pull rods are symmetrically and fixedly inserted into the horizontal part of the extension plates. The moving end of the electric push-pull rods is fixedly connected to a fixing plate, and the fixing plate is fixed to the outside of the sealing frame.

[0007] By adopting the above technical solution, the relative connection between the limiting frame and the hollow support platform is realized, and the limiting frame can be pushed to the upper end of the hollow support platform to surround the forging blank placed on the hollow support platform. When it is not necessary to clamp and limit the forging blank, the limiting frame can be moved to the lower side to avoid obstructing the feeding of the forging blank onto the hollow support platform.

[0008] Preferably, the material pulling and holding assembly includes two symmetrically rotatably connected to the outside of the sealing frame. A motor drive assembly for driving the rotating shafts is fixedly installed on the outer wall of the sealing frame. A mounting base is fixedly connected to the side of the rotating shaft away from the sealing frame. An electric telescopic rod is fixedly inserted into the mounting base. The moving ends of the two electric telescopic rods are fixedly connected to the same pulling plate. A pressure roller group is fixedly installed on the inner side of the pulling plate. A pressure sensor is installed between the pulling plate and the pressure roller group.

[0009] By adopting the above technical solution, the forging blank can be pressed and limited from the top, further ensuring the placement stability of the forging blank. It can also assist in feeding the forging blank onto the hollow support platform and estimate the weight of the forging blank, assisting the circumferential limiting component, the pulling and pressing component and the multi-directional transfer component to work more accurately.

[0010] Preferably, the feeding feedback component includes a storage box fixedly installed on the movable plate, a feeding pipe fixedly connected to the side wall of the storage box, the end of the feeding pipe away from the storage box passing through the side wall of the limiting frame and fixedly connected to the elastic silicone capsule, a gear pump installed on the feeding pipe, and a pressure gauge installed on the pipe wall near the limiting frame.

[0011] By adopting the above technical solution, magnetorheological fluid can be quickly delivered into the elastic silicon capsule, and the electromagnetic coil winding can be used to convert the liquid magnetorheological fluid into a solid structure, which can then be used for limiting the size and style of forging blanks.

[0012] Preferably, the feed pipe has a telescopic corrugated section on the pipe wall near the limiting frame, and the telescopic length of the telescopic corrugated section is greater than the moving height of the circumferential limiting component.

[0013] By adopting the above technical solution, the limitations of the feeding pipe on the lifting and lowering action of the positioning frame are avoided, ensuring smooth delivery of magnetorheological fluid.

[0014] Preferably, a liquid level sensor is also installed on the top of the storage tank to monitor the remaining amount of magnetorheological fluid in the storage tank.

[0015] By adopting the above technical solution, the amount of magnetorheological fluid used after circumferentially limiting the forging blank can be calculated, and then the volume of the forging blank can be inferred in reverse. This volume can be compared with the pre-input standard volume of the forging blank to confirm the casting quality of the forging blank in advance and carry out effective early warning work.

[0016] Preferably, the multi-directional transfer assembly includes a lifting plate slidably disposed within the hollow support platform. A force-receiving permanent magnet plate is fixedly installed at the lower end of the lifting plate. An amplifying electromagnetic plate, opposite to the force-receiving permanent magnet plate, is fixedly installed at the bottom of the inner wall of the hollow support platform. Multiple support shafts are rotatably connected to the lifting plate. Electric rollers are fixedly connected to the upper ends of the support shafts. The electric rollers are positioned corresponding to the openings. The lifting plate has a hollow structure and multiple sets of servo motor assemblies for driving the support shafts to rotate are fixedly installed inside.

[0017] By adopting the above technical solution, the forging blank placed on the hollow support platform can be delivered in a selectable direction, which can better adapt to the use of different path processes.

[0018] Preferably, the inner wall of the hollow support platform is symmetrically and fixedly connected with multiple positioning slide rods, the surface of the lifting plate is provided with multiple sliding holes that slide and engage with the positioning slide rods, and the lower end of the electric roller is also fixedly connected with an outwardly expanding support cylinder that abuts against the upper surface of the lifting plate.

[0019] Compared with existing technologies, the advantages of this invention are as follows: 1. By setting up circumferential limiting components and feeding feedback components, clamping and fixing forces can be provided on the circumference of the forging blank when it is lifted and moved, ensuring the stability of the forging blank during the transfer process, and it can be used for forging blanks of different sizes, effectively improving the scope of application.

[0020] 2. The set material pulling and holding components can simultaneously press and limit the top of the forging blank when it is being transferred, which further improves the placement stability of the forging blank and can provide pulling force for the forging blank that needs to be transferred to the hollow bearing platform, assisting the forging blank to move quickly to the hollow bearing platform for transfer.

[0021] 3. Through the set multi-directional transfer components, the forging blank placed on the hollow support platform can be quickly moved out in a selectable direction, adapting to a variety of different transfer paths. Attached Figure Description

[0022] Figure 1This is a three-dimensional structural schematic diagram of the present invention; Figure 2 This is a three-dimensional cross-sectional view of the circumferential limiting component of the present invention; Figure 3 yes Figure 2 A three-dimensional structural diagram of the installation of the middle limiting frame and the electromagnetic coil winding; Figure 4 This is a three-dimensional structural diagram of the installation of the electric slide rail, the moving plate, and the hydraulic push rod of the present invention; Figure 5 This is a three-dimensional structural schematic diagram of the material pulling and pressing component of the present invention; Figure 6 This is a three-dimensional structural schematic diagram of the material feeding feedback component of the present invention; Figure 7 This is a frontal cross-sectional view of the multi-directional transfer component of the present invention.

[0023] In the diagram: 1 Electric slide rail, 2 Moving plate, 3 Hydraulic push rod, 4 Hollow bearing platform, 5 Circumferential limiting assembly, 51 Limiting frame, 52 Elastic silicon capsule, 53 Embedding slot, 54 Electromagnetic coil winding, 55 Sealing frame, 56 Extension plate, 57 Electric push-pull rod, 58 Fixed plate, 6 Material pulling and holding assembly, 61 Rotating shaft, 62 Motor drive assembly, 63 Mounting base, 64 Electric telescopic rod, 65 Pulling plate, 66 Extrusion roller group, 67 Pressure sensor, 7 Material feeding feedback assembly, 71 Storage box, 72 Feeding pipe, 73 Gear pump, 74 Pressure gauge, 75 Telescopic corrugated section, 76 Liquid level sensor, 8 Multi-directional transfer assembly, 81 Lifting plate, 82 Force-bearing permanent magnet plate, 83 Force-increasing electromagnetic plate, 84 Support shaft, 85 Electric roller, 86 Servo motor assembly, 87 Positioning slide rod, 88 Outward expansion support cylinder, 9 Through port. Detailed Implementation

[0024] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0025] like Figures 1-7As shown, a forging blank lifting device includes two electric slide rails 1 and a PLC controller. The moving ends of the two electric slide rails 1 are fixedly connected to the same moving plate 2. The upper end of the moving plate 2 is fixedly connected to a plurality of symmetrically arranged hydraulic push rods 3. The device also includes a hollow support platform 4, a circumferential limiting component 5, a material pulling and holding component 6, a material feeding feedback component 7, and a multi-directional transfer component 8. The hollow support platform 4 is fixedly connected to the moving ends of the plurality of hydraulic push rods 3. The circumferential limiting component 5 is located on the outside of the hollow support platform 4. The material pulling and holding component 6 is rotatably mounted on the outside of the circumferential limiting component 5. The material feeding feedback component 7 is connected to the circumferential limiting component 5 and is used to deliver magnetorheological fluid into the circumferential limiting component 5. The multi-directional transfer component 8 is installed inside the hollow support platform 4. The upper surface of the hollow support platform 4 has a plurality of openings 9 for the top of the multi-directional transfer component 8 to extend out.

[0026] As one embodiment of the present invention, refer to Figure 1 , Figure 2 and Figure 3 The circumferential limiting component 5 includes a limiting frame 51. The upper end of the limiting frame 51 is 1 cm higher than the upper end of the hollow support platform 4, allowing the forged blank to move more smoothly onto the hollow support platform 4 after passing over the top of the limiting frame 51 during loading. An elastic silicone capsule 52 is fixedly connected to the inner side of the limiting frame 51. A circumferentially arranged insert groove 53 is opened on the outer side of the limiting frame 51, and an electromagnetic coil winding 54 is installed in the corresponding insert groove 53. The electromagnetic coil is spirally wound along the outer frame of the limiting frame 51 to form an "enclosed magnetic field", which can more effectively... The magnetorheological fluid introduced into the elastic silicon capsule 52 is rapidly cured, and the outer side makes it easier to replace the electromagnetic coil winding 54. The outer side of the limiting frame 51 is detachably and fixedly connected to the sealing frame 55, and also includes two extension plates 56 symmetrically and fixedly connected to the lower end of the hollow support platform 4. The extension plates 56 have an L-shaped structure, and two electric push-pull rods 57 are symmetrically and fixedly inserted on the horizontal part of the extension plates 56. The moving end of the electric push-pull rods 57 is fixedly connected to the fixing plate 58, and the fixing plate 58 is fixed to the outer side of the sealing frame 55.

[0027] Under the above-mentioned conditions, after the forging blank is transferred to the hollow support platform 4, the PLC controller controls multiple electric push-pull rods 57 to push the limit frame 51 upward, so that the limit frame 51 drives the elastic silicon capsule 52 to move to the side of the forging blank, surrounding the forging blank from all sides and effectively protecting and limiting it. During the process of the forging blank being transferred to the hollow support platform 4, the electric push-pull rods 57 can drive the limit frame 51 downward to prevent the protruding limit frame 51 from blocking the transfer of the forging blank to the hollow support platform 4.

[0028] As one embodiment of the present invention, refer to Figure 1 and Figure 5The material pulling and holding assembly 6 includes two symmetrically rotatably connected shafts 61 on the outside of the sealing frame 55. A motor drive assembly 62 for driving the shafts 61 to rotate is fixedly installed on the outer wall of the sealing frame 55. A mounting base 63 is fixedly connected to the side of the shafts 61 away from the sealing frame 55. An electric telescopic rod 64 is fixedly inserted into the mounting base 63. The moving ends of the two electric telescopic rods 64 are fixedly connected to the same pulling plate 65. A pressure roller group 66 is fixedly installed on the inner side of the pulling plate 65. A pressure sensor 67 is installed between the pulling plate 65 and the pressure roller group 66.

[0029] Under the above-mentioned conditions, after the forging blank is transferred to the hollow support platform 4, the electric telescopic rod 64 drives the pull plate 65 to move down, which in turn drives the extrusion roller group 66 to press and fix it on the top of the forging blank, further limiting the forging blank from the top. The pressure sensor 67 installed between the pull plate 65 and the extrusion roller group 66 feeds back the magnitude of the extrusion pressure of the extrusion roller group 66 on the top of the forging blank. When the pressure of the extrusion roller group 66 on the top of the forging blank reaches the threshold set by the pressure sensor 67, the PLC controller controls the electric telescopic rod 64 to stop the extrusion action. Furthermore, when it is necessary to transfer the forged blank to the hollow support platform 4, the electric telescopic rod 64 first pushes the pulling plate 65 to its maximum height. The PLC controller then controls the motor drive assembly 62 to drive the rotating shaft 61 to deflect the electric telescopic rod 64, causing the pulling plate 65 to deflect to one side of the forged blank. Then, the electric telescopic rod 64 pulls back the pulling plate 65, and the forged blank is transferred to the hollow support platform 4 by the pulling action of the extrusion roller group 66. During this process, due to the setting of the extrusion roller group 66, the extrusion roller group 66 and the forging blank are connected. The forging blanks are not fixedly connected; relative sliding allows the forging blanks to move more smoothly onto the hollow support platform 4. During the pulling process of the forging blanks, the weight of the forging blanks can be estimated based on the maximum pulling pressure fed back by the pressure sensor 67. The greater the weight of the forging blank, the greater the pulling force required, and the greater the maximum pulling pressure value fed back by the pressure sensor 67. Consequently, when the forging blanks are pressed from the top by the extrusion roller group 66, the higher the threshold value of the pressure sensor 67 is set, the greater the pressing force provided to the top of the forging blanks.

[0030] As one embodiment of the present invention, refer to Figure 1 and Figure 6 The feeding feedback component 7 includes a storage box 71 fixedly installed on the movable plate 2. A feeding pipe 72 is fixedly connected to the side wall of the storage box 71. The end of the feeding pipe 72 away from the storage box 71 passes through the side wall of the limiting frame 51 and is fixedly connected to the elastic silicone capsule 52. A gear pump 73 is installed on the feeding pipe 72. A pressure gauge 74 is also installed on the pipe wall of the feeding pipe 72 near the limiting frame 51.

[0031] Under the above settings, when the limiting frame 51 moves to the upper end of the hollow support platform 4 and the side of the forging blank, the gear pump 73, in conjunction with the feeding pipe 72, injects the magnetorheological fluid stored in the storage box 71 into the elastic silicon capsule 52. As the elastic silicon capsule 52 expands and presses against the outside of the forging blank, the expansion of the elastic silicon capsule 52 will be blocked by the forging blank. The resistance of the magnetorheological fluid continuing to flow into the elastic silicon capsule 52 increases, and the pressure in the elastic silicon capsule 52 and the feeding pipe 72 increases. When the pressure detected by the pressure gauge 74 reaches the set value, it indicates that the magnetorheological fluid, together with the elastic silicon capsule 52, completely encapsulates the forging blank. At this time, the PLC controller controls the gear pump 73 to stop working. The PLC controller then controls the power supply equipment to supply voltage to the electromagnetic coil winding 54, causing the electromagnetic coil winding 54 to generate a magnetic field. The magnetic field magnetizes and orients the magnetic particles in the magnetorheological fluid, transforming the magnetorheological fluid from a viscous liquid with good flowability into a rigid, solid-like substance. This provides a limit lock for the forging blank. The PLC controller adjusts the input voltage to the electromagnetic coil winding 54 based on the weight of the forging blank estimated by the pressure sensor 67. The heavier the forging blank, the greater the voltage input to the electromagnetic coil winding 54, resulting in a stronger solidification of the magnetorheological fluid and providing a greater clamping force for the forging blank. After the forging blank is moved into place, the electromagnetic coil winding 54 is turned off, the magnetic field disappears, the magnetorheological fluid returns to a liquid state, and the gear pump 73 is started to reverse the flow of the magnetorheological fluid back to the storage tank 71, causing the elastic silicon capsule 52 to detach from the forging blank, making the forging blank more stable during the transfer process.

[0032] As one embodiment of the present invention, refer to Figure 6 The feed pipe 72 has a telescopic corrugated section 75 on its pipe wall near the limiting frame 51, and the telescopic length of the telescopic corrugated section 75 is greater than the moving height of the circumferential limiting component 5.

[0033] Under the above-mentioned conditions, when the electric push-pull rod 57 pushes the limit frame 51 upward, the telescopic corrugated section 75 of the feed pipe 72 can be stretched accordingly, thereby enabling the feed pipe 72 to better match the movement of the limit frame 51 and assisting the feed pipe 72 in carrying out stable magnetorheological fluid transportation.

[0034] As one embodiment of the present invention, refer to Figure 6 A liquid level sensor 76 is also installed on the top of the storage tank 71 to monitor the remaining amount of magnetorheological fluid in the storage tank 71.

[0035] Under the aforementioned conditions, after the magnetorheological fluid is pumped into the elastic silicon capsule 52 by the gear pump 73 until the forging blank is completely encapsulated, the remaining amount of magnetorheological fluid in the storage tank 71 is confirmed by the level sensor 76. By calculating the difference between this amount and the initial amount of magnetorheological fluid, the amount of magnetorheological fluid introduced into the elastic silicon capsule 52 can be obtained. The more magnetorheological fluid introduced into the elastic silicon capsule 52, the smaller the volume of the forging blank. This allows for the estimation of the volume of the transferred forging blank, and this estimation can be used to determine the volume of the forging blank. The estimated value is compared with the volume value of the forging blank that is pre-input into the PLC controller. If the estimated value is more than 10% smaller than the pre-input value, there may be serious shrinkage cavities, shrinkage porosity or insufficient filling. The mechanical properties of such blanks do not meet the standards. After synchronous verification, unqualified blanks can be directly screened out to avoid ineffective input in subsequent forging. If the estimated value is more than 10% larger than the pre-input value, there may be too much residual gating and riser or excessive flash. Similarly, an unqualified signal is fed back to stop the processing process. Quality inspection can be carried out in advance.

[0036] As one embodiment of the present invention, refer to Figure 7 The multi-directional transfer assembly 8 includes a lifting plate 81 slidably disposed within a hollow support platform 4. A force-receiving permanent magnet plate 82 is fixedly mounted on the lower end of the lifting plate 81. An amplifying electromagnetic plate 83, opposite to the force-receiving permanent magnet plate 82, is fixedly mounted on the bottom of the inner wall of the hollow support platform 4. Multiple support shafts 84 are rotatably connected to the lifting plate 81. An electric roller 85 is fixedly connected to the upper end of each support shaft 84. The electric roller 85 is positioned corresponding to the opening 9. The lower end of the electric roller 85 is also fixedly connected to a contact point against the lifting plate 81. The outward expansion support cylinder 88 on the upper surface can expand the support area at the bottom of the electric roller 85, so that when the electric roller 85 lifts the forging blank, the electric roller 85 has sufficient support force to support the forging blank. The lifting plate 81 has a hollow structure and multiple sets of servo motor assemblies 86 for driving the support shaft 84 to rotate are fixedly installed inside. Multiple positioning slide rods 87 are symmetrically fixedly connected to the inner wall of the hollow bearing platform 4. Multiple sliding holes that slide and engage with the positioning slide rods 87 are opened on the surface of the lifting plate 81.

[0037] Under the above-mentioned conditions, after the hollow support platform 4 is moved to the designated position, the PLC controller controls the power supply equipment to supply power to the force-applying electromagnetic plate 83. The force-applying electromagnetic plate 83 generates the same magnetism as the force-bearing permanent magnet plate 82, thereby applying a magnetic thrust to the lifting plate 81. The lifting plate 81 pushes multiple electric rollers 85 to move upward and extend out of the opening 9, lifting the forging blank placed on the hollow support platform 4. With the driving force of the electric rollers 85, the forging blank can be quickly moved out of the hollow support platform 4 and sent to the next process station. Before the lifting plate 81 lifts it, the PLC controller can control multiple sets of servo motor assemblies 86 to drive the support shaft 84 and electric rollers 85 to rotate and move the angle according to the direction in which the forging blank needs to be moved out. By changing the moving position of the electric rollers 85, the forging blank can be quickly moved out in different directions, which is suitable for different path moving routes. Furthermore, based on the estimation of the weight of the forging blank, the PLC controller automatically adjusts the current supplied to the force-applying electromagnetic plate 83 by the power supply equipment. The heavier the forging blank, the greater the current supplied, which makes the magnetic thrust applied by the force-applying electromagnetic plate 83 greater. This, in turn, enables the lifting plate 81 to have sufficient jacking force to lift the forging blank and automatically adapt to the removal of the work. Simultaneously, the driving power of the electric roller 85 is increased to ensure sufficient power to drive the forging blank to move out of the hollow support platform 4.

[0038] The operating principle of the present invention is described as follows: The hollow support platform 4 is moved to the loading position of the forging blank by the electric slide rail 1. The PLC controller first controls the electric telescopic rod 64 to push the pulling plate 65 to the maximum height. The PLC controller then controls the motor drive assembly 62 to drive the electric telescopic rod 64 to deflect, so that the pulling plate 65 and the extrusion roller group 66 rotate to one side of the forging blank. Then, the return force of the electric telescopic rod 64 causes the extrusion roller group 66 to provide a pulling force on the forging blank, pulling the forging blank onto the hollow support platform 4. During this process, the maximum tensile force value is detected by the pressure sensor 67, and the weight of the forging blank is estimated. The larger the maximum tensile force value fed back by the pressure sensor 67, the greater the weight of the forging blank. Since the top height of the limit frame 51 is higher than the top height of the hollow support platform 4, the forging blank can fall smoothly onto the hollow support platform 4. The PLC controller then controls the electric push-pull rod 57 to push the limit frame 51 upward through the fixed plate 58, so that the elastic silicon capsule 52 is located on the side of the forging blank. The gear pump 73 delivers the magnetorheological fluid stored in the storage tank 71 to the elastic silicon capsule 52, so that the elastic silicon capsule 52 gradually expands and wraps around the forging blank. When it is completely wrapped, it is limited and blocked by the forging blank. The pressure in the elastic silicon capsule 52 and the supply pipe 72 gradually increases. After reaching the pressure value set by the pressure gauge 74, the PLC controller controls the gear pump 73 to stop working and inputs voltage into the electromagnetic coil winding 54 to apply a magnetic field to the magnetorheological fluid, thereby causing the magnetorheological fluid to have a solidification-like effect, providing a stable clamping force for the forging blank. The greater the estimated weight of the forging blank, the greater the voltage input to the electromagnetic coil winding 54, the higher the solidification strength of the magnetorheological fluid, and the greater the clamping force on the periphery of the forging blank. The motor drive assembly 62 drives the electric telescopic rod 64 to rotate to a vertical position, so that the traction plate 65 and the extrusion roller group 66 are directly above the forging blank. The electric telescopic rod 64 drives the traction plate 65 and the extrusion roller group 66 to move down and press them onto the forging blank until the pressure sensor 67 reports that the extrusion pressure has reached the set threshold. Based on the estimated weight of the forging blank, the PLC controller adjusts the threshold set by the pressure sensor 67. Specifically, the greater the estimated weight of the forging blank, the greater the threshold set by the pressure sensor 67, and the greater the pressing force provided to the top of the forging blank. After the forging blank is moved to the next process position by the electric slide rail 1 and hydraulic push rod 3, the PLC controller first cuts off the voltage input to the electromagnetic coil winding 54, so that the magnetorheological fluid returns to a liquid state. Then, the gear pump 73 is started to reverse the flow of the magnetorheological fluid back to the storage tank 71, so that the elastic silicon capsule 52 is reset to its initial state. The electric push-pull rod 57 then drives the limit frame 51 to move down, so as to remove the peripheral obstruction of the forging blank. The electric telescopic rod 64 then pushes the traction plate 65 and the extrusion roller group 66 to move to the maximum height. The electric telescopic rod 64 is driven to rotate 90 degrees by the motor drive assembly 62, so that the material pulling and holding assembly 6 rotates to the side. The PLC controller controls the power supply equipment to apply force. The electromagnetic plate 83 is powered, and when the force-applying electromagnetic plate 83 is energized, it generates the same polarity as the force-receiving permanent magnet plate 82, thereby applying a magnetic thrust to the lifting plate 81. The lifting plate 81 pushes multiple electric rollers 85 to move upward and extend out of the opening 9 and abut against the lower end of the forging blank. The electric rollers 85 apply a moving force to the forging blank, quickly moving the forging blank out of the hollow support platform 4 and into the next process position. Before the lifting plate 81 pushes the electric rollers 85 upward, the electric rollers 85 can be driven to rotate at an angle by the servo motor assembly 86, thereby enabling rapid adjustment of the transfer position of the forging blank and allowing the forging blank to be moved out from different positions, suitable for different transfer paths. Furthermore, based on the estimation of the weight of the forging blank, the PLC controller controls the power supply equipment to supply different amounts of current to the force-applying electromagnetic plate 83. Specifically, the greater the weight of the forging blank, the greater the current supplied to the force-applying electromagnetic plate 83 by the power supply equipment, ensuring that there is sufficient magnetic thrust to enable the electric roller 85 to lift the forging blank for transfer.

[0039] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A forging blank lifting device, comprising two electric slide rails (1) and a PLC controller, wherein the moving ends of the two electric slide rails (1) are fixedly connected to the same moving plate (2), and the upper end of the moving plate (2) is fixedly connected to a plurality of symmetrically arranged hydraulic push rods (3), characterized in that, It also includes: a hollow support platform (4), a circumferential limiting component (5), a material pulling and holding component (6), a material feeding feedback component (7), and a multi-directional transfer component (8). The hollow support platform (4) is fixedly connected to the moving ends of the plurality of hydraulic push rods (3). The circumferential limiting component (5) is located on the outside of the hollow support platform (4). The material pulling and holding component (6) is rotatably installed on the outside of the circumferential limiting component (5). The material feeding feedback component (7) is connected to the circumferential limiting component (5) and is used to deliver magnetorheological fluid into the circumferential limiting component (5). The multi-directional transfer component (8) is installed inside the hollow support platform (4). The upper surface of the hollow support platform (4) is provided with a plurality of openings (9) for the top of the multi-directional transfer component (8) to extend out. The circumferential limiting component (5) includes a limiting frame (51), an elastic silicone capsule (52) is fixedly connected to the inner side of the limiting frame (51), a circumferentially arranged insert groove (53) is opened on the outer side of the limiting frame (51), and an electromagnetic coil winding (54) is installed in the corresponding insert groove (53). A sealing frame (55) is detachably fixedly connected to the outer side of the limiting frame (51).

2. The forging blank lifting device according to claim 1, characterized in that, The circumferential limiting component (5) also includes two extension plates (56) symmetrically fixedly connected to the lower end of the hollow support platform (4). The extension plates (56) are L-shaped structures. Two electric push-pull rods (57) are symmetrically fixedly inserted into the horizontal part of the extension plates (56). The moving end of the electric push-pull rods (57) is fixedly connected to a fixing plate (58). The fixing plate (58) is fixed to the outside of the sealing frame (55).

3. The forging blank lifting device according to claim 1, characterized in that, The material pulling and holding assembly (6) includes two symmetrically rotatably connected shafts (61) on the outside of the sealing frame (55). A motor drive assembly (62) for driving the shafts (61) to rotate is fixedly installed on the outer wall of the sealing frame (55). A mounting base (63) is fixedly connected to the side of the shafts (61) away from the sealing frame (55). An electric telescopic rod (64) is fixedly inserted in the mounting base (63). The moving ends of the two electric telescopic rods (64) are fixedly connected to the same pulling plate (65). A pressure roller group (66) is fixedly installed on the inner side of the pulling plate (65). A pressure sensor (67) is installed between the pulling plate (65) and the pressure roller group (66).

4. The forging blank lifting device according to claim 2, characterized in that, The feeding feedback component (7) includes a storage box (71) fixedly installed on the movable plate (2). A feeding pipe (72) is fixedly connected to the side wall of the storage box (71). The end of the feeding pipe (72) away from the storage box (71) passes through the side wall of the limiting frame (51) and is fixedly connected to the elastic silicone capsule (52). A gear pump (73) is installed on the feeding pipe (72). A pressure gauge (74) is also installed on the pipe wall of the feeding pipe (72) near the limiting frame (51).

5. The forging blank lifting device according to claim 4, characterized in that, The feed pipe (72) has a telescopic corrugated section (75) on the pipe wall near the limiting frame (51), and the telescopic length of the telescopic corrugated section (75) is greater than the moving height of the circumferential limiting component (5).

6. The forging blank lifting device according to claim 4, characterized in that, The top of the storage tank (71) is also equipped with a liquid level sensor (76) to monitor the remaining amount of magnetorheological fluid in the storage tank (71).

7. The forging blank lifting device according to claim 1, characterized in that, The multi-directional transfer assembly (8) includes a lifting plate (81) slidably disposed within the hollow support platform (4). A force-bearing permanent magnet plate (82) is fixedly installed at the lower end of the lifting plate (81). An electric electromagnetic plate (83) is fixedly installed at the bottom of the inner wall of the hollow support platform (4) and is disposed opposite to the force-bearing permanent magnet plate (82). Multiple support shafts (84) are rotatably connected to the lifting plate (81). An electric roller (85) is fixedly connected to the upper end of the support shaft (84). The electric roller (85) is positioned corresponding to the opening (9). The lifting plate (81) is a hollow structure and multiple sets of servo motor assemblies (86) for driving the support shafts (84) to rotate are fixedly installed inside.

8. A forging blank lifting device according to claim 7, characterized in that, The inner wall of the hollow support platform (4) is symmetrically fixedly connected with multiple positioning slide rods (87). The surface of the lifting plate (81) is provided with multiple sliding holes that slide and engage with the positioning slide rods (87). The lower end of the electric roller (85) is also fixedly connected with an outwardly expanding support cylinder (88) that abuts against the upper surface of the lifting plate (81).

Images