A charging device and method for smelting NdFeB rapid solidification alloy

Abstract

This invention relates to the field of material loading technology, specifically disclosing a material loading device and method for smelting NdFeB rapid-solidification alloys. The device is used to load raw materials into a loading cylinder and to load the loading cylinder into a crucible. The material loading device includes a clamping mechanism and a discharge cylinder. The clamping mechanism includes a base and two clamping arms symmetrically mounted on the left and right sides of the base. The discharge cylinder is fixedly mounted on the base and includes a cylinder frame and several material boxes mounted in the cylinder frame. Each material box includes a box body and a box cover mounted on the box body. This invention utilizes the clamping mechanism to transport the loading cylinder, ensuring accurate placement of the loading cylinder in the crucible. The clamping mechanism can not only freely adjust the size of the clamping arms to accommodate various types of loading cylinders but also adaptively adapt to the inner wall curvature of the loading cylinder, maximizing the contact area and friction between the clamping arms and the loading cylinder, effectively improving the stability of the clamping mechanism in transporting the loading cylinder.

Description

Technical Field

[0001] This invention relates to the field of charging technology, specifically a charging device and method for smelting NdFeB rapid solidification alloys. Background Technology

[0002] The neodymium iron boron rapid solidification process involves placing pre-treated raw materials of different melting points into a crucible, preheating them under vacuum, and then heating them under argon protection. The melted and uniformly stirred metals are poured into an tundish and then transferred to a copper roller for spinning, forming an alloy casting with a certain uniform composition and thickness. The principle of the equipment is that when alternating current passes through a water-cooled copper coil, the metal in the crucible generates an induced current due to the principle of electromagnetic induction. The induced current overcomes the resistance of the furnace charge to generate heat, thereby achieving the purpose of rapidly heating and melting the metal charge.

[0003] In the existing batching workshop of the NdFeB rapid solidification process, the raw materials are first placed in batching buckets according to the component ratio, and then the batching buckets are transported to the smelting workshop. The batching buckets are then poured into the crucible of the vacuum furnace and removed to complete the loading. The existing loading workshop uses manual cranes to load materials into the furnace, which results in high labor intensity for workers, is not conducive to the realization of automated loading, seriously affects production efficiency, and also poses a risk of crucible breakage due to the impact of furnace charge on the crucible, which brings hidden dangers to safe production. Summary of the Invention

[0004] The purpose of this invention is to provide a charging device and method for smelting NdFeB rapid solidification alloys, in order to solve the problems mentioned in the background art, such as the existing charging workshop using manual cranes to charge the furnace, which leads to high labor intensity for workers, is not conducive to the realization of automated charging, seriously affects production efficiency, and also poses a risk of crucible breakage due to the impact of furnace charge on the crucible, thus posing a hidden danger to safe production.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A charging apparatus and method for smelting NdFeB rapid-solidification alloys, used for loading raw materials into a charging cylinder and loading the charging cylinder into a crucible, comprising:

[0007] A clamping mechanism, comprising a base and two clamping arms symmetrically mounted on the left and right sides of the base, wherein each clamping arm comprises a side plate, a push plate and a flexible extrusion assembly arranged sequentially from the inside to the outside, the side plate being fixedly connected to the base, a plurality of guide rods being horizontally mounted on the side plate, the push plate being slidably connected to the guide rods, and the push plate and the flexible extrusion assembly being connected by a connecting rod assembly;

[0008] A feeding cylinder is fixedly installed on the base. The feeding cylinder includes a cylinder frame and several material boxes installed in the cylinder frame. Each material box includes a box body and a box cover installed on the box body. A rotating shaft is rotatably installed at the center of the box body. Two baffles are slidably installed on the inner wall of the box body, and a storage area for storing raw materials is formed between the two baffles. Two locking blocks for driving the baffles to slide are provided on the outer side of the rotating shaft. The locking blocks are telescopic structures. The baffles have locking grooves adapted to the locking blocks on the side facing the rotating shaft.

[0009] The support assembly includes a loading platform, a first adjustment mechanism, a second adjustment mechanism, and a lifting adjustment mechanism. A crucible is mounted on the loading platform. The first adjustment mechanism is mounted on the loading platform, the second adjustment mechanism is mounted on the first adjustment mechanism, and the lifting adjustment mechanism is mounted on the second adjustment mechanism. The telescopic end of the lifting adjustment mechanism is connected to the clamping mechanism.

[0010] As a further aspect of the present invention: the flexible extrusion assembly includes a mounting frame and extrusion rollers rotatably mounted on the mounting frame. The mounting frame is provided in two sets, with one end of the two sets of mounting frames rotatably connected, and at least two extrusion rollers are rotatably mounted on each set of mounting frames. The surface of the extrusion rollers is wrapped with an anti-slip strip.

[0011] As a further embodiment of the present invention: each set of mounting frames includes two mounting plates mounted on the upper and lower sides of the extrusion rollers. Two extrusion rollers are provided, and the extrusion rollers are rotatably mounted between the two mounting plates. One extrusion roller is rotatably mounted on the rotating side of the mounting frame, and the other extrusion roller is rotatably mounted on the other side of the mounting frame.

[0012] As a further embodiment of the present invention: the connecting rod assembly includes a first rod body and a second rod body, one end of the first rod body is rotatably connected to the push plate, the other end of the first rod body is rotatably connected to one end of the second rod body, the other end of the second rod body is hinged to the mounting plate, and a spring is connected between the first rod body and the second rod body.

[0013] As a further embodiment of the present invention: a screw is rotatably mounted on the bottom of the base, and two kinds of threads with opposite directions are symmetrically arranged on the left and right sides of the screw. A threaded sleeve that cooperates with the screw is fixedly mounted on the push plate. The end of the screw is threadedly connected to the threaded sleeve, driving the screw to rotate. The screw drives the push plate with the threaded sleeve to slide along the guide rod.

[0014] As a further embodiment of the present invention: a connector is provided on the upper side of the box cover, and a mating part adapted to the connector is provided on the bottom of the box body; the connector, the mating part, and the rotating shaft rotate synchronously; at least one mating block is provided on the connector, and a mating groove adapted to the mating block is provided on the mating part.

[0015] As a further embodiment of the present invention: a drive motor is fixedly installed at the bottom of the cylinder frame, and the output shaft of the drive motor is also provided with a mating block, and the output shaft of the drive motor is connected to the bottom of the bottom material box through the mating block.

[0016] As a further embodiment of the present invention: the bottom of the cylinder frame is provided with a discharge port adapted to the discharge port, the discharge port and the discharge port are aligned, and the box cover is also provided with an opening adapted to the discharge port.

[0017] As a further embodiment of the present invention: the base is provided with a discharge port adapted to the discharge port, and a discharge cover that blocks the discharge port is rotatably installed on the bottom of the base, and the rotating shaft of the discharge cover is connected to the screw drive through a gearbox.

[0018] As a further aspect of the present invention: the charging cylinder is made of pure iron plate, and the composition of the pure iron plate and the pure iron rod used for smelting is consistent. The electromagnetic shielding of the charging cylinder made of pure iron avoids discharge between raw materials inside the charging cylinder, increases the power supply in the initial stage of smelting, and thus improves the smelting efficiency. The charging cylinder made of pure iron can form a skin effect during the smelting process, which enables the charging cylinder to heat up quickly and radiates and preheats the iron material inside the cylinder, eliminating the preheating stage in the original process. The outer diameter of the charging cylinder is slightly smaller than the inner diameter of the crucible, and the height of the charging cylinder is slightly higher than the height of the crucible. The raw material at the bottom of the charging cylinder melts first and the material at the top melts later, thereby achieving the goal of melting high-melting-point iron first and low-melting-point NdFeB alloy later, which can reduce the burn-off of NdFeB alloy and reduce the amount of slag.

[0019] Furthermore, in order to ensure that iron and neodymium in the raw materials are loaded into the loading cylinder sequentially, with iron filling the lower part of the loading cylinder and neodymium-iron alloy filling the upper part, this embodiment provides two material boxes. The lower material box is used to fill iron, and the upper material box is used to fill neodymium-iron alloy. The positions of the storage areas in the material boxes are adjusted so that the storage areas in the two material boxes are staggered. During the rotation drive of the rotating shaft, the storage area in the lower material box moves to the discharge port first to complete the unloading, and the upper material box moves to the discharge port later to unload. Of course, multiple material boxes can also be provided. Material boxes that are not unloaded are used for material preparation. In this case, it is only necessary to adjust the locking block to the retracted state, and the locking block will disengage from the baffle plate. Material boxes in the material preparation state will not unload.

[0020] As a further embodiment of the present invention: the first adjusting mechanism includes a vertical support and an adjusting screw rotatably mounted on the vertical support. An adjusting sleeve is threadedly connected to the adjusting screw, and the adjusting sleeve is slidably connected to the vertical support, controlling the rotation of the adjusting screw to drive the adjusting sleeve to slide along the vertical support. A rotating component is mounted on the adjusting sleeve, and the second adjusting mechanism is mounted on the rotating component. The first adjusting mechanism adjusts the lifting height and rotation position of the second adjusting mechanism. Furthermore, the second adjusting mechanism has the same structure as the first adjusting mechanism, and is arranged horizontally to adjust the horizontal position of the lifting adjusting mechanism. Also, in this embodiment of the present invention, the lifting adjusting mechanism is a hydraulic rod. The first adjusting mechanism further includes a first motor for controlling the rotation of the adjusting screw, and the second adjusting mechanism also includes a second motor for driving.

[0021] As a further embodiment of the present invention, it also includes a camera assembly, which comprises a camera and a control assembly. The control assembly includes an input module, a processing module, and an output module. The control assembly is connected to the support assembly, the clamping mechanism, and the unloading cylinder, wherein:

[0022] A camera is used to acquire image data, which includes images of the loading cylinder, crucible, and clamping mechanism.

[0023] The input module is used to receive image data;

[0024] The processing module is used to identify the image data and obtain the position information of the loading cylinder, crucible, and clamping mechanism; and to generate control commands based on the position information, which are used to control the support assembly, clamping mechanism, and loading cylinder.

[0025] The output module is used to send control commands. It should be noted that the control commands control the support assembly, clamping mechanism and feeding cylinder in the following ways: controlling the first motor, the second motor and the rotating assembly to adjust the position of the clamping mechanism so that the clamping mechanism reaches the feeding cylinder before clamping and to transport the feeding cylinder into the crucible; it also includes controlling the rotating motor to clamp the feeding cylinder and controlling the drive motor to feed the material.

[0026] A charging method for smelting NdFeB rapid-solidification alloys includes the following steps:

[0027] S10. Obtain the position information of the loading cylinder, crucible, and clamping mechanism;

[0028] S20. Generate control commands based on location information;

[0029] S30. Drive the clamping mechanism to transport the loading cylinder to the crucible according to the control command, and fill the loading cylinder with raw materials.

[0030] Compared with the prior art, the beneficial effects of the present invention are as follows: The present invention utilizes a clamping mechanism to transport the loading cylinder, so that the loading cylinder is accurately placed in the crucible. The clamping mechanism can not only freely adjust the size of the clamping arm to suit various loading cylinders, but also adaptively adapt to the inner wall curvature of the loading cylinder, so as to maximize the contact area and friction between the clamping arm and the loading cylinder, effectively improving the stability of the clamping mechanism in transporting the loading cylinder. Furthermore, by setting a feeding cylinder, the clamping mechanism can simultaneously realize the loading of raw materials during the transport process, saving the loading time of raw materials, thereby improving the alloy melting efficiency. Attached Figure Description

[0031] Figure 1 A schematic diagram of the charging device for melting NdFeB rapid solidification alloy.

[0032] Figure 2 This is a top view of the charging device for melting NdFeB rapid solidification alloy.

[0033] Figure 3 This is a schematic diagram of the clamping mechanism in the charging device for melting NdFeB rapid solidification alloy.

[0034] Figure 4 This is a bottom view of the clamping mechanism in the charging device for melting NdFeB rapid solidification alloy.

[0035] Figure 5 This is a schematic diagram of the clamping mechanism holding the charging cylinder in a charging device for melting NdFeB rapid solidification alloy.

[0036] Figure 6 This is a schematic diagram of the feeding cylinder in a charging device for melting NdFeB rapid solidification alloy.

[0037] Figure 7 This is a schematic diagram of the material box in the charging device for melting NdFeB rapid solidification alloy.

[0038] Figure 8 This is a schematic diagram of the structure of the box in the charging device for melting NdFeB rapid solidification alloy.

[0039] In the diagram: 100 - loading platform, 200 - vertical lifting mechanism, 300 - camera assembly, 400 - horizontal moving mechanism, 500 - lifting and adjusting mechanism;

[0040] 600-Clamping mechanism, 610-Base, 611-Screw, 612-Gearbox, 613-Discharge cover, 620-Side plate, 630-Push plate, 631-Screw sleeve, 640-Mounting bracket, 650-Connecting rod assembly, 660-Extrusion roller, 670-Anti-slip strip, 680-Spring, 690-Guide rod;

[0041] 700 - Loading cylinder; 800 - Crucible;

[0042] 900-Feeding cylinder, 910-Cylinder frame, 920-Material box, 921-Box body, 922-Box cover, 923-Connector, 924-Feeding port, 925-Baffle plate, 926-Rotating shaft, 927-Clamping block, 928-Discharge port, 930-Feeding port, 940-Drive motor. Detailed Implementation

[0043] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0044] Please see Figures 1-4 In this embodiment of the invention, a charging device for smelting NdFeB rapid solidification alloy is provided, which is used to load raw materials into a charging cylinder 700 and to load the charging cylinder 700 into a crucible 800. The raw materials include iron, NdFeB alloy, and other raw materials required in the process of smelting NdFeB rapid solidification alloy. The charging device includes a discharge cylinder 900 for loading raw materials into the charging cylinder 700, a clamping mechanism 600 for transporting the charging cylinder 700, and a support assembly, wherein:

[0045] like Figure 3-4 As shown, the clamping mechanism 600 includes a base 610 and two clamping arms symmetrically installed on the left and right sides of the base 610. Each clamping arm includes a side plate 620, a push plate 630, and a flexible extrusion assembly arranged sequentially from the inside to the outside. The side plate 620 is fixedly connected to the base 610. Several guide rods 690 are horizontally installed on the side plate 620. The push plate 630 is slidably connected to the guide rods 690. The push plate 630 and the flexible extrusion assembly are connected by a connecting rod assembly 650. Driving the push plate 630 to slide along the guide rods 690 adjusts the length of the clamping arm, making it suitable for loading cylinders 700 of different diameters, thereby expanding the application range of the clamping mechanism 600.

[0046] Furthermore, the flexible extrusion assembly includes a mounting frame 640 and extrusion rollers 660 rotatably mounted on the mounting frame 640. Two sets of mounting frames 640 are provided, with one end of each set rotatably connected. At least two extrusion rollers 660 are rotatably mounted on each set of mounting frames 640. An anti-slip strip 670 is wound around the surface of each extrusion roller 660. During the outward sliding of the push plate 630 along the guide rod 690, the push plate 630, through the connecting rod assembly 650, drives the flexible extrusion assembly to gradually approach the inner wall of the loading cylinder 700. The gap between the extrusion assembly and the inner cylinder wall gradually decreases until it contacts the inner cylinder wall. During this process, one extrusion roller 660 contacts the inner cylinder wall first, and then the connecting rod assembly 650 continues to push the mounting frame 640, causing the rotating side of the mounting frame 640 to rotate, which drives the other extrusion roller 660 to contact the inner cylinder wall, so that the flexible extrusion assembly is completely in contact with the inner cylinder wall, increasing the contact area between the flexible extrusion assembly and the inner cylinder wall, increasing the friction between the clamping mechanism 600 and the loading cylinder 700, and improving the stability of the clamping mechanism 600 in handling the loading cylinder 700.

[0047] Furthermore, such as Figure 3-5 As shown, in this embodiment of the invention, each mounting frame 640 includes two mounting plates mounted on the upper and lower sides of the extrusion roller 650. Two extrusion rollers 660 are provided, rotatably mounted between the two mounting plates. One extrusion roller 660 is rotatably mounted on the rotating side of the mounting frame 640, and the other extrusion roller 660 is rotatably mounted on the other side of the mounting frame 640. Figure 5 For example, the extrusion roller 660 on the rotating side of the mounting bracket 640 first contacts the inner cylinder wall. At this time, the push plate 630 slides along the guide rod 690 and pushes the mounting bracket 640 through the connecting rod assembly 650. After the mounting bracket 640 is subjected to force, it rotates around the rotating side as the axis, so that the other extrusion roller 660 fits against the inner cylinder wall, thereby making the entire flexible bonding assembly fully contact the inner cylinder wall.

[0048] In addition, in order to drive the mounting bracket 640 to rotate and keep the extrusion roller 660 in a fitted state, the connecting rod assembly 650 includes a first rod and a second rod. One end of the first rod is rotatably connected to the push plate 630, and the other end of the first rod is rotatably connected to one end of the second rod. The other end of the second rod is hinged to the mounting plate. A spring 680 is connected between the first rod and the second rod. The spring 680 adaptively adjusts the angle between the first rod and the second rod to change the length of the connecting rod assembly 650, so that the flexible fitting assembly can adaptively fit the loading cylinder 700 of different diameters.

[0049] Furthermore, in this embodiment of the invention, a screw 611 is rotatably mounted on the bottom of the base 610. Two types of threads with opposite directions are symmetrically arranged on the left and right sides of the screw 611. A threaded sleeve 631 that mates with the screw 611 is fixedly mounted on the push plate 630. The end of the screw 611 is threadedly connected to the threaded sleeve 631, driving the screw 611 to rotate. The screw 611 causes the push plate 630 with the threaded sleeve 631 to slide along the guide rod 690. Because the screw 611 has two threads with opposite directions on its left and right sides... With threads of opposite direction, the push plates 630 on the left and right sides of the base 610 move towards each other or away from each other under the drive of the screw 611, so that the clamping arm has two states of extension and retraction. And when the clamping arm is in different states, it can keep the flexible fitting component in contact with the loading cylinder 700, thereby improving the stability of the clamping mechanism 600 in handling the loading cylinder 700 and increasing the application range of the clamping mechanism 600. It is understood that a rotary motor for driving the screw 611 to rotate should be installed on the base 610.

[0050] Please see Figure 3 as well as Figure 6-8 The feeding cylinder 900 is fixedly installed on the base 610. The feeding cylinder 900 includes a cylinder frame 910 and a plurality of material boxes 920 installed on the cylinder frame 910. Figure 6 As can be seen, several material boxes 920 are stacked from bottom to top inside the cylindrical frame 910. It should be noted that the material boxes 920 are detachably installed in the cylindrical frame 910. The position of the installed material boxes 920 remains unchanged during use until the material boxes 920 are removed from the cylindrical frame 910.

[0051] The material box 920 includes a box body 921 and a box cover 922 mounted on the box body 921. A rotating shaft 926 is rotatably mounted at the center of the interior of the box body 921. Two baffle plates 925 are slidably mounted on the inner wall of the box body 921, forming a storage area for raw material storage between the two baffle plates 925. Two locking blocks 927 are provided on the outer side of the rotating shaft 926 for driving the baffle plates 925 to slide. The locking blocks 927 are telescopic structures, having an extended first position and a shortened second position. In the second position, the baffle plate 925 has a slot on the side facing the rotating shaft 926 that matches the locking block 927. The locking block 927 is driven to extend to the first position and engages in the slot of the baffle plate 925. This controls the rotating shaft 926 to rotate, causing the baffle plate 925 to slide along the inner wall of the box 921 to change the position of the storage area. The bottom of the box 921 has a discharge port 928. When the position of the storage area is adjusted to the discharge port 928, the raw materials stored inside the storage area fall from the discharge port 928.

[0052] Furthermore, a connector is provided on the upper side of the box cover 922, and a mating part adapted to the connector is provided on the bottom of the box body 921. The connector and the mating part are fixedly connected to the rotating shaft 926. That is, the connector is rotatably mounted on the box cover 922, and the mating part is rotatably mounted on the box body 921. Moreover, the connector, the mating part, and the rotating shaft 926 rotate synchronously. The connector is provided with at least one mating block, and the mating part is provided with a mating groove adapted to the mating block. When multiple boxes 920 are stacked, the mating groove of the mating part of the upper box 920 engages with the mating block of the connector of the lower box 920, so that the two boxes 920 are connected and the rotating shaft 926 in the two boxes 920 rotate synchronously.

[0053] Furthermore, a drive motor 940 is fixedly installed at the bottom of the cylinder frame 910. The output shaft of the drive motor 940 is also provided with a mating block. The output shaft of the drive motor 940 is connected to the bottom of the bottom material box 920 through the mating block to drive the rotating shaft 926 inside the bottom material box 920 to rotate.

[0054] Furthermore, the bottom of the cylinder frame 910 is provided with a discharge port 930 that is adapted to the discharge port 928. The discharge port 930 and the discharge port 928 are aligned so that the raw material can be discharged from the discharge port 928 through the discharge port 930. Correspondingly, the box cover 922 is also provided with an opening that is adapted to the discharge port 928 so that the raw material in the upper material box 920 can be discharged.

[0055] In addition, the box body 921 is provided with a feed port 924 for filling raw materials into the box body 921.

[0056] Please refer to it again. Figure 4 Since the feeding cylinder 900 is mounted on the base 610, in order for the raw material to fall from the feeding cylinder 900 into the loading cylinder 700, the base 610 is provided with a feeding port adapted to the feeding port 930. The bottom of the base 610 is also rotatably mounted with a feeding cover 613 to block the feeding port. The rotating shaft of the feeding cover 613 is connected to the screw 611 through the gearbox 612, driving the screw 611 to rotate, thereby driving the rotating shaft of the feeding cover 613 to rotate, so that the feeding cover 613 rotates. In the initial state, the clamping arm is in the retracted state, and the feeding cover 613 closes the feeding port. After the screw 611 rotates, the clamping arm extends and clamps the loading cylinder 700. At this time, the feeding cover 613 opens the feeding port, and the raw material in the feeding cylinder 900 falls into the loading cylinder 700, so that the clamping mechanism 600 loads material during the process of transporting the loading cylinder 700, saving loading time.

[0057] The charging cylinder 700 is made of pure iron plate, and the composition of the pure iron plate is consistent with that of the pure iron rod used for smelting. The electromagnetic shielding of the charging cylinder 700 made of pure iron avoids the discharge between raw materials inside the charging cylinder 700. The power supply is increased in the initial stage of smelting, thereby improving the smelting efficiency. The charging cylinder 700 made of pure iron can form a skin effect during the smelting process, which enables the charging cylinder 700 to heat up quickly and at the same time radiates and preheats the iron material inside the cylinder, eliminating the preheating stage in the original process.

[0058] Furthermore, the outer diameter of the charging cylinder 700 is slightly smaller than the inner diameter of the crucible 800, and the height of the charging cylinder 700 is slightly higher than the height of the crucible 800. Since the height of the charging cylinder 700 is higher than that of the crucible, the raw material at the bottom of the charging cylinder 700 melts first and the material at the top melts later, thereby achieving the goal of melting high-melting-point iron first and melting low-melting-point NdFeB alloy later, which can reduce the burn-off of NdFeB alloy and reduce the amount of slag.

[0059] Furthermore, in order to ensure that iron and neodymium in the raw materials are loaded into the loading cylinder 700 sequentially, with iron material filling the lower part of the loading cylinder 700 and neodymium-iron alloy filling the upper part, in this embodiment, two material boxes 920 are provided. The lower material box 920 is used to fill iron material, and the upper material box 920 is used to fill neodymium-iron alloy. The position of the storage area in the material box 920 is adjusted so that the storage areas in the two material boxes 920 are staggered. During the rotation drive of the rotating shaft 926, the storage area in the lower material box 920 moves to the discharge port 928 first to complete the unloading, and the upper material box 920 moves to the discharge port 928 to unload the material. Of course, multiple material boxes 920 can also be provided. Material boxes 920 that are not unloaded are used for material preparation. At this time, it is only necessary to adjust the locking block 927 to the retracted state. The locking block 927 disengages from the baffle plate 925, and the material box 920 in the material preparation state will not unload the material.

[0060] Please see Figure 1-2 The support assembly includes a loading platform 100, a first adjustment mechanism 200, a second adjustment mechanism 400, and a lifting adjustment mechanism 500. A crucible 800 is mounted on the loading platform 100. The first adjustment mechanism 200 is mounted on the loading platform 100, the second adjustment mechanism 400 is mounted on the first adjustment mechanism 200, and the lifting adjustment mechanism 500 is mounted on the second adjustment mechanism 400. The telescopic end of the lifting adjustment mechanism 500 is connected to the clamping mechanism 600. The first and second adjustment mechanisms 200 and 400, as well as the lifting adjustment mechanism 500, adjust the three-dimensional spatial position of the clamping mechanism 600 so that the clamping mechanism 600 reaches a preset position.

[0061] Furthermore, the first adjusting mechanism 200 includes a vertical support and an adjusting screw rotatably mounted on the vertical support. An adjusting sleeve is threadedly connected to the adjusting screw, and the adjusting sleeve is slidably connected to the vertical support, controlling the rotation of the adjusting screw and causing the adjusting sleeve to slide along the vertical support. A rotating component is mounted on the adjusting sleeve, and the second adjusting mechanism 400 is mounted on the rotating component. The first adjusting mechanism 200 adjusts the lifting height and rotation position of the second adjusting mechanism 400. In addition, the second adjusting mechanism 400 has the same structure as the first adjusting mechanism 200, and the second adjusting mechanism 400 is arranged horizontally to adjust the horizontal position of the lifting adjusting mechanism 500. Furthermore, in this embodiment of the invention, the lifting adjusting mechanism 500 is a hydraulic rod.

[0062] Furthermore, the first adjustment mechanism 200 also includes a first motor for controlling the rotation of the adjustment screw, and the second adjustment mechanism 400 also includes a second motor for driving.

[0063] In this embodiment of the invention, the loading device further includes a camera assembly 300, which includes a camera and a control assembly. The control assembly includes an input module, a processing module, and an output module. The control assembly is connected to the support assembly, the clamping mechanism 600, and the unloading cylinder 900.

[0064] A camera is used to acquire image data, which includes images of the loading cylinder 700, the crucible 800, and the clamping mechanism 600.

[0065] The input module is used to receive image data;

[0066] The processing module is used to identify the image data and obtain the position information of the loading cylinder 700, the crucible 800, and the clamping mechanism 600; and to generate control commands based on the position information, the control commands being used to control the support assembly, the clamping mechanism 600, and the unloading cylinder 900.

[0067] The output module is used to send control commands. It should be noted that the control commands control the support assembly, clamping mechanism 600 and unloading cylinder 900 in the following ways: controlling the first motor, the second motor and the rotating assembly to adjust the position of the clamping mechanism 600 so that the clamping mechanism 600 reaches the loading cylinder 700 before clamping and to transport the loading cylinder 700 into the crucible 800; it also includes controlling the rotating motor to clamp the loading cylinder 700 and controlling the drive motor to unload the material.

[0068] This invention also discloses a charging method for smelting NdFeB rapid solidification alloys, comprising the following steps:

[0069] S10. Obtain the position information of the loading cylinder 700, crucible 800, and clamping mechanism 600;

[0070] S20. Generate control commands based on location information;

[0071] S30. Drive the clamping mechanism 600 according to the control command to transport the loading cylinder 700 to the crucible 800 and load the raw material into the loading cylinder 700.

[0072] This invention utilizes a clamping mechanism to transport the loading cylinder, ensuring its accurate placement within the crucible. The clamping mechanism not only allows for free adjustment of the clamping arm size to accommodate various loading cylinders but also adaptively adapts to the inner wall curvature of the loading cylinder, maximizing the contact area and friction between the clamping arm and the loading cylinder. This effectively improves the stability of the clamping mechanism in transporting the loading cylinder. Furthermore, by incorporating a discharge cylinder, the clamping mechanism simultaneously loads raw materials during transport, saving loading time and thus improving alloy melting efficiency.

[0073] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0074] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A charging device for smelting NdFeB rapid-solidification alloys, used for loading raw materials into a charging cylinder and loading the charging cylinder into a crucible, characterized in that, include: A clamping mechanism includes a base and two clamping arms symmetrically mounted on the left and right sides of the base. Each clamping arm includes a side plate, a push plate, and a flexible extrusion assembly arranged sequentially from the inside to the outside. The side plate is fixedly connected to the base, and several guide rods are horizontally mounted on the side plate. The push plate is slidably connected to the guide rods, and the push plate and the flexible extrusion assembly are connected by a connecting rod assembly. The flexible extrusion assembly includes a mounting frame and extrusion rollers rotatably mounted on the mounting frame. Two sets of mounting frames are provided, with one end of each set of mounting frames rotatably connected. At least two extrusion rollers are rotatably mounted on each set of mounting frames, and the surface of the extrusion rollers is wrapped with an anti-slip strip. A feeding cylinder is fixedly installed on the base. The feeding cylinder includes a cylinder frame and several material boxes installed in the cylinder frame. Each material box includes a box body and a box cover installed on the box body. A rotating shaft is rotatably installed at the center of the box body. Two baffle plates are slidably installed on the inner wall of the box body, forming a storage area for raw material storage between the two baffle plates. Two locking blocks for driving the baffle plates to slide are provided on the outer side of the rotating shaft. The locking blocks are telescopic structures. The baffle plates have locking grooves adapted to the locking blocks on the side facing the rotating shaft. A screw is rotatably installed on the bottom of the base. Two kinds of threads with opposite directions are symmetrically arranged on the left and right sides of the screw. A push plate is fixedly installed with a screw sleeve that cooperates with the screw. The end of the screw is threadedly connected to the screw sleeve, driving the screw to rotate. The screw drives the push plate with the screw sleeve to slide along the guide rod. The support assembly includes a loading platform, a first adjustment mechanism, a second adjustment mechanism, and a lifting adjustment mechanism. A crucible is mounted on the loading platform. The first adjustment mechanism is mounted on the loading platform, the second adjustment mechanism is mounted on the first adjustment mechanism, and the lifting adjustment mechanism is mounted on the second adjustment mechanism. The telescopic end of the lifting adjustment mechanism is connected to the clamping mechanism.

2. The charging device for smelting NdFeB rapid-solidification alloys according to claim 1, characterized in that, Each mounting frame includes two mounting plates installed on the upper and lower sides of the extrusion roller. There are two extrusion rollers, which are rotatably mounted between the two mounting plates. One extrusion roller is rotatably mounted on the rotating side of the mounting frame, and the other extrusion roller is rotatably mounted on the other side of the mounting frame.

3. The charging device for smelting NdFeB rapid-solidification alloy according to claim 2, characterized in that, The connecting rod assembly includes a first rod and a second rod. One end of the first rod is rotatably connected to the push plate, and the other end of the first rod is rotatably connected to one end of the second rod. The other end of the second rod is hinged to the mounting plate, and a spring is connected between the first rod and the second rod.

4. The charging device for smelting NdFeB rapid-solidification alloys according to claim 3, characterized in that, A connector is provided on the upper side of the box cover, and a mating part adapted to the connector is provided on the bottom of the box body. The connector, the mating part, and the rotating shaft rotate synchronously. At least one mating block is provided on the connector, and a mating groove adapted to the mating block is provided on the mating part.

5. The charging device for smelting NdFeB rapid-solidification alloys according to claim 4, characterized in that, A drive motor is fixedly installed at the bottom of the cylinder frame. The output shaft of the drive motor is also provided with a mating block, and the output shaft of the drive motor is connected to the bottom of the bottom material box through the mating block.

6. The charging device for smelting NdFeB rapid-solidification alloys according to claim 5, characterized in that, The bottom of the box body has a discharge port, and the bottom of the cylinder frame has a feeding port that matches the discharge port. The feeding port and the discharge port are aligned, and the box cover also has an opening that matches the discharge port.

7. The charging device for smelting NdFeB rapid-solidification alloys according to claim 6, characterized in that, The base has a discharge port that matches the discharge port. The bottom of the base is also rotatably equipped with a discharge cover that blocks the discharge port. The rotating shaft of the discharge cover is connected to the screw drive through a gearbox.

8. A charging method for a charging device for smelting NdFeB rapid-solidification alloys as described in any one of claims 1-7, characterized in that, Includes the following steps: S10. Obtain the position information of the loading cylinder, crucible, and clamping mechanism; S20. Generate control commands based on location information; S30. Drive the clamping mechanism to transport the loading cylinder to the crucible according to the control command, and fill the loading cylinder with raw materials.

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