A centrifugal aluminum casting device and method for rotor production

Abstract

The invention discloses a centrifugal aluminum casting device and method for rotor production. The centrifugal aluminum casting device for rotor production comprises a casting base, an installation card platform, an insulation material tube, a melting furnace body and a centrifugal casting bin. During use of the invention, as the centrifugal casting bin rotates at a high speed, the material liquid in the centrifugal casting bin will adhere to the inner wall of the centrifugal casting bin due to the centrifugal state, and as the centrifugal casting bin continues to rotate, the material liquid inside the centrifugal casting bin is continuously cooled and formed, and a transverse feed guide rail drives a spray box and a spray hole to move back and forth, so that the material liquid sprayed from the spray box and the spray hole can be effectively sprayed on multiple areas of the inner wall of the centrifugal casting bin, so that the material liquid is spread all over the inner wall of the centrifugal casting bin, and the grinding layer on the surface of the arc-shaped grinding block can quickly grind the inner wall of the cast aluminum tube under the high-speed rotation of the centrifugal casting bin, and the inner wall of the centrifugal casting bin will also contact and grind the outer wall of the cast aluminum tube, thereby improving the centrifugal casting molding effect of the cast aluminum tube.

Description

Technical Field

[0001] The invention relates to the technical field of labels, in particular to a centrifugal aluminum casting device and method for rotor production. Background Art

[0002] Centrifugal casting is a technique and method of injecting liquid metal into a high-speed rotating mold, so that the molten metal moves centrifugally to fill the mold and form a casting. Due to the centrifugal motion, the liquid metal can fill the mold well in the radial direction and form the free surface of the casting; a cylindrical inner hole can be obtained without a core; it is helpful to remove gas and inclusions in the liquid metal; it affects the crystallization process of the metal, thereby improving the mechanical and physical properties of the casting. Rotor centrifugal casting aluminum is a rotor material made by selecting aluminum metal as the metal used in the centrifugal casting process.

[0003] Centrifugal casting According to the spatial position of the mold's rotation axis, common centrifugal casting can be divided into horizontal centrifugal casting and vertical centrifugal casting. Centrifugal casting when the mold's rotation axis is horizontal or has a small angle (4°) with the horizontal line is called horizontal centrifugal casting. Centrifugal casting when the mold's rotation axis is vertical is called vertical centrifugal casting. Centrifugal casting in which the mold's rotation axis has a large angle with both the horizontal and vertical lines is called inclined axis centrifugal casting, but it is rarely used.

[0004] In the prior art, a centrifugal casting device for cast aluminum rotors disclosed in the publication number "CN201644741U" includes a cast aluminum mold, a centrifugal device, and a hydraulic mold clamping device. The centrifugal device is provided with a speed regulating motor, a rotating shaft, a sliding plate, and a positioning plate. The speed regulating motor and the rotating shaft are mounted on a fixed frame, and the positioning plate is fixed to the upper end of the rotating shaft. The hydraulic mold clamping device includes a hydraulic cylinder, a piston connecting rod, a sliding plate, and a top pull rod assembly. The hydraulic cylinder is mounted on a fixed frame, and the upper piston connecting rod passes through the center of the rotating shaft and is connected to the upper sliding plate through a bearing assembly. The three sets of top pull rod assemblies for clamping the cast aluminum mold are mounted on the sliding plate, and the upper end of the rotating shaft and the sliding plate are assembled with a cross gap. The sliding plate is driven up and down by the hydraulic cylinder to open and close the cast aluminum mold. It has a reasonable structure, is easy to operate and use, has high efficiency in hydraulic mold opening and closing, and has a good aluminum liquid casting effect.

[0005] However, the existing technology still has major deficiencies, such as:

[0006] In the above device and prior art:

[0007] 1. During the centrifugal casting process, it is difficult for the aluminum liquid to be evenly spread in the mold, so the mold needs to maintain a high speed for a long time to evenly spread the aluminum liquid in the mold, affecting the casting efficiency of the aluminum tube in the mold;

[0008] 2. The aluminum tube is formed in a mold under centrifugal casting. During the molding process, the outer wall of the aluminum tube can fit the smooth surface of the inner cavity of the mold, but the inner wall of the aluminum tube is difficult to be effectively polished during the casting process. Once the aluminum tube is formed, the burr inner cavity of the aluminum tube will affect the production effect of the aluminum tube. Summary of the invention

[0009] The object of the present invention is to provide a centrifugal aluminum casting device and method for rotor production to solve the problems raised in the above background technology.

[0010] To achieve the above-mentioned object, the present invention provides the following technical solution: A centrifugal aluminum casting device for rotor production comprises a casting base, a mounting clamp, an insulation material pipe, a molten material furnace body and a centrifugal casting bin, wherein the mounting clamp is arranged on the top of the casting base, the insulation material pipe is arranged in the top area of ​​the mounting clamp, the centrifugal casting bin is arranged between adjacent insulation material pipes, the molten material furnace body is arranged on one side of the top of the casting base, and the molten material furnace body is connected with the insulation material pipe;

[0011] A casting molten metal homogenizing injection unit, which is arranged at one end of the insulation material pipe close to the centrifugal casting bin and is used to uniformly spray the casting molten metal during the aluminum casting process, so that the casting molten metal is evenly distributed inside the centrifugal casting bin, thereby accelerating the centrifugal aluminum casting efficiency of the centrifugal casting bin;

[0012] The casting inner wall homogenizing grinding unit is arranged on the surface of the insulation material tube and is used for grinding the inner cavity of the aluminum tube after the aluminum melt is cooled in the centrifugal aluminum casting step to improve the casting effect of the aluminum tube.

[0013] Preferably, the casting molten metal homogenizing injection unit includes a transverse feed guide rail, a transverse feed groove is provided on the top of the casting base, the transverse feed guide rail is installed inside the transverse feed groove, a vertical table is installed on the movable end of the transverse feed guide rail, a rotating guide rail is installed in the central area of ​​the vertical table, the insulating material pipe is installed on the inner wall of the rotating end of the rotating guide rail, a heat-resistant rotary elbow joint is installed at one end of the insulating material pipe, a material receiving hopper is installed at one end of the heat-resistant rotary elbow joint, a spray box is installed at one end of the insulating material pipe, and spray holes are evenly arranged on the surface of the spray box.

[0014] Preferably, the casting inner wall homogeneous grinding unit includes an installation bin, the installation bins are arranged into several groups at intervals, and the several groups of installation bins are installed on the surface of the thermal insulation material pipe at intervals, an installation cavity is arranged inside the installation bin, a heat-resistant air bag is installed at the bottom of the installation cavity, a bulging block is installed slidingly through the top of the installation bin, the bottom of the bulging block is fixed to the top of the heat-resistant air bag, an arc-shaped grinding block is installed on the top of the bulging block, a grinding layer is arranged on the surface of the arc-shaped grinding block, and heat absorption blocks are installed on both sides of the installation bin.

[0015] Preferably, feed channels are provided on both sides of the centrifugal casting bin, a liquid stop plate is installed in the feed channel area, and a feed hole is provided in the central area of ​​the liquid stop plate.

[0016] Preferably, the installation card platform is arranged in two groups, and a drive locking module is installed on the installation card platform.

[0017] Preferably, the drive locking module includes a fixed clamping ring, which is installed on the top of the adjacent mounting clamping platform, and a rotating clamping ring is rotatably installed between the adjacent mounting clamping platforms. The insulation material pipe is inserted into the fixed clamping ring and the rotating clamping ring, and a locking screw is installed on the surface of the rotating clamping ring. The locking screw is locked to the surface of the centrifugal casting bin, and an annular tooth plate is provided on the surface of the rotating clamping ring.

[0018] Preferably, the driving locking module also includes a fixed plate, a vertical movable groove is provided on the top of the casting base, a vertical feed guide rail is installed in the vertical movable groove, the fixed plate is installed on the movable end of the vertical feed guide rail, an electric roller is installed between adjacent fixed plates, a driving gear is installed on the rotating end of the electric roller, and the driving gear is engaged with the annular gear plate.

[0019] Preferably, a movable groove is further provided on the top of the casting base, a movable guide rail is provided on the top of the movable groove, a vertical column is installed on the movable end of the movable guide rail, an electric turntable is rotatably installed on the top of the vertical column, and the molten material furnace body is installed on the rotating end of the electric turntable.

[0020] Preferably, one side of the melting furnace body is connected to a feeding pipe, and one end of the feeding pipe is rotatably mounted on the top of the receiving hopper.

[0021] A method, based on the centrifugal aluminum casting device for rotor production, comprises the following steps:

[0022] S1: The liquid material in the centrifugal casting bin will adhere to the inner wall of the centrifugal casting bin due to the centrifugal state. As the centrifugal casting bin continues to rotate, the liquid material inside the centrifugal casting bin will continue to cool down and form, thereby completing the rapid forming of the centrifugal casting of cast aluminum inside the centrifugal casting bin;

[0023] S2: The lateral feed guide rail drives the spray box and the spray hole to move back and forth, so that the spray liquid in the spray box and the spray hole can be effectively sprayed on multiple areas of the inner wall of the centrifugal casting bin, so that the liquid is spread all over the inner wall of the centrifugal casting bin, which is convenient for the rapid molding of cast aluminum;

[0024] S3: The bulging block drives the arc-shaped grinding block to expand outward until the arc-shaped grinding block is tightly attached to the inner wall of the cast aluminum tube. At this time, the grinding layer on the surface of the arc-shaped grinding block will quickly grind the inner wall of the cast aluminum tube under the high-speed rotation of the centrifugal casting chamber. At the same time, the inner wall of the cast aluminum tube is supported by the arc-shaped grinding block, and the inner wall of the centrifugal casting chamber will also contact and grind the outer wall of the cast aluminum tube, thereby improving the centrifugal casting molding effect of the cast aluminum tube;

[0025] S4: Loosen the locking screw installed on the surface of the rotating clamp ring, remove the fixed clamp ring and the rotating clamp ring, and then remove the liquid stop plate in the centrifugal casting chamber area to facilitate the rapid demoulding of the cast aluminum tube.

[0026] Compared with the prior art, the present invention has the following beneficial effects:

[0027] 1. With the high-speed rotation of the centrifugal casting bin, the liquid in the centrifugal casting bin will adhere to the inner wall of the centrifugal casting bin due to the centrifugal state. As the centrifugal casting bin continues to rotate, the liquid inside the centrifugal casting bin will continue to cool down and form, thereby completing the rapid forming of the centrifugal casting of cast aluminum inside the centrifugal casting bin;

[0028] 2. The lateral feed guide rail drives the spray box and the spray hole to move back and forth, so that the spray liquid in the spray box and the spray hole can be effectively sprayed on multiple areas of the inner wall of the centrifugal casting bin, so that the liquid is spread all over the inner wall of the centrifugal casting bin, which is convenient for the rapid molding of cast aluminum;

[0029] 3. The grinding layer on the surface of the arc-shaped grinding block will quickly grind the inner wall of the cast aluminum tube under the high-speed rotation of the centrifugal casting chamber. At the same time, the inner wall of the cast aluminum tube is supported by the arc-shaped grinding block, and the inner wall of the centrifugal casting chamber will also contact and grind the outer wall of the cast aluminum tube, thereby improving the centrifugal casting molding effect of the cast aluminum tube. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is an overall schematic diagram of the device of the present invention;

[0031] Figure 2 It is a schematic diagram of the movable slot part in the present invention;

[0032] Figure 3 It is a schematic diagram of the heat preservation material pipe part in the present invention;

[0033] Figure 4 It is a schematic diagram of the installation of the card table and the centrifugal casting bin in the present invention;

[0034] Figure 5It is a schematic diagram of the feeding pipe part in the present invention;

[0035] Figure 6 It is a schematic diagram of the installation bin part in the present invention;

[0036] Figure 7 It is a partial schematic diagram of the heat absorption block in the present invention;

[0037] Figure 8 It is a schematic diagram of the casting base part in the present invention;

[0038] Fig. 9 It is a partial schematic diagram of the heat-resistant airbag and the bulging block in the present invention.

[0039] In the figure: 1. Casting base; 11. Vertical moving groove; 12. Transverse feed groove; 13. Transverse feed guide rail; 14. Movable groove; 141. Movable guide rail; 142. Vertical column; 15. Electric turntable; 2. Mounting clamp; 21. Fixed clamp ring; 22. Rotating clamp ring; 23. Ring gear plate; 24. Locking screw; 3. Fixed plate; 31. Vertical feed guide rail; 32. Electric roller; 33. Driving gear; 4. Insulation Material pipe; 41. Vertical table; 411. Rotating guide rail; 42. Heat-resistant rotary elbow joint; 43. Material receiving hopper; 5. Installation bin; 51. Heat absorption block; 52. Arc grinding block; 53. Grinding layer; 54. Installation cavity; 55. Heat-resistant air bag; 56. Bulging block; 6. Centrifugal casting bin; 61. Liquid stop plate; 611. Feed hole; 62. Feed channel; 7. Spray box; 71. Spray hole; 8. Melt furnace body; 81. Feed pipe. DETAILED DESCRIPTION

[0040] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0041] See also Figure 1-9 , the present invention provides a technical solution:

[0042] Embodiment 1: A centrifugal aluminum casting device for rotor production: comprising a casting base 1, a mounting clamp 2, an insulating material pipe 4, a molten material furnace body 8 and a centrifugal casting bin 6, wherein the mounting clamp 2 is arranged on the top of the casting base 1, the insulating material pipe 4 is arranged in the top area of ​​the mounting clamp 2, the centrifugal casting bin 6 is arranged between adjacent insulating material pipes 4, the molten material furnace body 8 is arranged on one side of the top of the casting base 1, and the molten material furnace body 8 is connected to the insulating material pipe 4;

[0043] Feed channels 62 are arranged on both sides of the centrifugal casting bin 6 , a liquid stop plate 61 is installed in the area of ​​the feed channel 62 , and a feed hole 611 is arranged in the central area of ​​the liquid stop plate 61 .

[0044] A movable groove 14 is also provided on the top of the casting base 1, and a movable guide rail 141 is provided on the top of the movable groove 14. A vertical column 142 is installed on the movable end of the movable guide rail 141, and an electric turntable 15 is rotatably installed on the top of the vertical column 142. The molten material furnace body 8 is installed on the rotating end of the electric turntable 15.

[0045] One side of the melting furnace body 8 is connected to a feeding pipe 81 , and one end of the feeding pipe 81 is rotatably mounted on the top of the receiving hopper 43 .

[0046] In this embodiment, the casting block and the auxiliary powder of cast aluminum are poured into the melting furnace body 8 and the mixed raw materials are calcined and melted by the set melting furnace body 8, and then the calcined and melted liquid casting is led out through the discharge pipe 81, and this part of the molten liquid is received and transported by the set receiving hopper 43. The receiving hopper 43 injects the liquid into the insulation pipe 4, and slowly injects it into the centrifugal casting bin 6 through the insulation pipe 4. After the liquid is continuously injected into the centrifugal casting bin 6, as the centrifugal casting bin 6 rotates at a high speed, the liquid in the centrifugal casting bin 6 will adhere to the inner wall of the centrifugal casting bin 6 due to the centrifugal state. As the centrifugal casting bin 6 continues to rotate, the liquid inside the centrifugal casting bin 6 is continuously cooled and formed, thereby completing the rapid molding of the cast aluminum centrifugal casting inside the centrifugal casting bin 6.

[0047] The casting molten metal homogenizing injection unit is arranged at one end of the heat-insulating material pipe 4 close to the centrifugal casting bin 6, and is used to uniformly spray the casting molten metal during the aluminum casting process, so that the casting molten metal is evenly distributed inside the centrifugal casting bin 6, thereby accelerating the centrifugal aluminum casting efficiency of the centrifugal casting bin 6;

[0048] The casting molten metal homogenizing injection unit includes a transverse feed guide rail 13, a transverse feed groove 12 is arranged on the top of the casting base 1, the transverse feed guide rail 13 is installed inside the transverse feed groove 12, a vertical platform 41 is installed on the movable end of the transverse feed guide rail 13, a rotating guide rail 411 is installed in the central area of ​​the vertical platform 41, the insulation material pipe 4 is installed on the inner wall of the rotating end of the rotating guide rail 411, a heat-resistant rotary elbow joint 42 is installed at one end of the insulation material pipe 4, a receiving hopper 43 is installed at one end of the heat-resistant rotary elbow joint 42, a spray box 7 is installed at one end of the insulation material pipe 4, and spray holes 71 are evenly arranged on the surface of the spray box 7.

[0049] In this embodiment, during the process of injecting liquid into the centrifugal casting bin 6, in order to ensure that the liquid is evenly and quickly spread over the inner wall of the centrifugal casting bin 6, the transverse feed guide rail 13 is set up to drive the vertical table 41 and the insulation material pipe 4 to be partially inserted back and forth into the centrifugal casting bin 6. When the insulation material pipe 4 is inserted into the centrifugal casting bin 6, the rotating guide rail 411 can drive the insulation material pipe 4 to rotate. When the insulation material pipe 4 rotates, the liquid transported in the insulation material pipe 4 will be quickly thrown outward, and the liquid in the insulation material pipe 4 will be thrown toward the inner wall of the centrifugal casting bin 6 through the spray box 7 and the spray hole 71, and as the transverse feed guide rail 13 drives the spray box 7 and the spray hole 71 to move back and forth, the liquid sprayed from the spray box 7 and the spray hole 71 can be effectively sprayed on multiple areas of the inner wall of the centrifugal casting bin 6, thereby allowing the liquid to spread over the inner wall of the centrifugal casting bin 6.

[0050] The casting inner wall homogenizing grinding unit is arranged on the surface of the heat-insulating material tube 4, and is used for grinding the inner cavity of the aluminum tube after the aluminum melt is cooled in the centrifugal aluminum casting step to improve the casting effect of the aluminum tube.

[0051] The casting inner wall homogenizing grinding unit includes an installation bin 5, which is arranged to be divided into several groups at intervals, and several groups of installation bins 5 are installed on the surface of the insulation material pipe 4 at intervals. An installation cavity 54 is arranged inside the installation bin 5, and a heat-resistant air bag 55 is installed at the bottom of the installation cavity 54. A bulging block 56 is installed on the top of the installation bin 5 for sliding through. The bottom of the bulging block 56 is fixed to the top of the heat-resistant air bag 55, and an arc-shaped grinding block 52 is installed on the top of the bulging block 56. A grinding layer 53 is arranged on the surface of the arc-shaped grinding block 52, and heat absorption blocks 51 are installed on both sides of the installation bin 5.

[0052] In this embodiment, as the cast aluminum tube is continuously formed, the feed pipe 81 stops conveying the liquid material, and at the same time, the heat-insulating feed pipe 4 is completely inserted into the centrifugal casting bin 6. At this time, the cast aluminum tube begins to cool and form, but a large amount of heat is still retained in the centrifugal casting bin 6. The heat-absorbing blocks 51 installed on both sides of the mounting bin 5 on the surface of the heat-insulating feed pipe 4 will quickly absorb the heat, and the heat-absorbing blocks 51 will transfer the absorbed heat to the heat-resistant airbag 55. As the heat in the heat-resistant airbag 55 area continues to accumulate, the ammonia stored in the heat-resistant airbag 55 will be quickly heated and as the heated volume continues to increase, the heat-absorbing blocks 51 will be quickly heated. The bulging block 56 installed on the top of the heat-resistant airbag 55 will be continuously pushed outwards under the expansion of the heat-resistant airbag 55, and the bulging block 56 drives the arc-shaped grinding block 52 to open outwards until the arc-shaped grinding block 52 is tightly fitted on the inner wall of the cast aluminum tube. At this time, the grinding layer 53 on the surface of the arc-shaped grinding block 52 will quickly grind the inner wall of the cast aluminum tube under the high-speed rotation of the centrifugal casting bin 6. At the same time, the inner wall of the cast aluminum tube is supported by the arc-shaped grinding block 52, and the inner wall of the centrifugal casting bin 6 will also contact and grind the outer wall of the cast aluminum tube, thereby improving the centrifugal casting molding effect of the cast aluminum tube.

[0053] Embodiment 2:

[0054] Based on the first embodiment, it is taken into consideration in this embodiment that since the centrifugal casting bin 6 is composed of two groups of casting molds that are fixed together, after the cast aluminum tube is formed in the centrifugal casting bin 6, if the external driving unit cannot be disassembled, the centrifugal casting bin 6 will be unable to be disassembled, thereby quickly disassembling and removing the cast aluminum tube. Therefore, a driving locking module is provided in this embodiment, and the driving locking module can solve the above-mentioned problem in this embodiment.

[0055] The installation card platform 2 is arranged in two groups, and a drive locking module is installed on the installation card platform 2 .

[0056] The driving locking module includes a fixed clamping ring 21, which is installed on the top of the adjacent mounting clamping platform 2. A rotating clamping ring 22 is rotatably installed between the adjacent mounting clamping platforms 2. The insulation material pipe 4 is inserted into the fixed clamping ring 21 and the rotating clamping ring 22. A locking screw 24 is installed on the surface of the rotating clamping ring 22. The locking screw 24 is locked to the surface of the centrifugal casting bin 6. An annular tooth plate 23 is provided on the surface of the rotating clamping ring 22.

[0057] The driving and locking module also includes a fixed plate 3. A vertical movable groove 11 is arranged on the top of the casting base 1. A vertical feed guide rail 31 is installed in the vertical movable groove 11. The fixed plate 3 is installed on the movable end of the vertical feed guide rail 31. An electric roller 32 is installed between adjacent fixed plates 3. A driving gear 33 is installed on the rotating end of the electric roller 32. The driving gear 33 is in transmission engagement with the annular gear plate 23.

[0058] In this embodiment, after the centrifugal casting of the cast aluminum tube is completed, wait for the insulation material tube 4 area to cool down. When the heat-resistant air bag 55 is cooled, the volume of ammonia gas is reduced. When the heat-resistant air bag 55 is contracted, the bulging block 56 and the arc-shaped grinding block 52 are reset. Then, the insulation material tube 4 is pulled out of the centrifugal casting bin 6 through the transverse feed guide 13. Then, the fixed plate 3 and the driving gear 33 are pulled out of the annular gear plate 23 area through the set vertical feed guide 31. Then, the locking screw 24 installed on the surface of the rotating clamping ring 22 is loosened, and the fixed clamping ring 21 and the rotating clamping ring 22 are removed. Then, the liquid stop plate 61 in the centrifugal casting bin 6 area is removed, thereby facilitating the rapid demolding of the cast aluminum tube.

[0059] A method, based on a centrifugal aluminum casting device for rotor production, comprises the following steps:

[0060] S1: The liquid material in the centrifugal casting bin 6 will adhere to the inner wall of the centrifugal casting bin 6 due to the centrifugal state. As the centrifugal casting bin 6 continues to rotate, the liquid material inside the centrifugal casting bin 6 is continuously cooled and formed, thereby completing the rapid forming of the centrifugal casting of cast aluminum inside the centrifugal casting bin 6;

[0061] S2: The lateral feed guide rail 13 drives the spray box 7 and the spray hole 71 to reciprocate, so that the spray liquid in the spray box 7 and the spray hole 71 can be effectively sprayed on multiple areas of the inner wall of the centrifugal casting bin 6, so that the spray liquid is spread all over the inner wall of the centrifugal casting bin 6, which is convenient for the rapid molding of cast aluminum;

[0062] S3: The bulging block 56 drives the arc-shaped grinding block 52 to expand outward until the arc-shaped grinding block 52 is tightly attached to the inner wall of the cast aluminum tube. At this time, the grinding layer 53 on the surface of the arc-shaped grinding block 52 will quickly grind the inner wall of the cast aluminum tube under the high-speed rotation of the centrifugal casting chamber 6. At the same time, the inner wall of the cast aluminum tube is supported by the arc-shaped grinding block 52, and the inner wall of the centrifugal casting chamber 6 will also contact and grind the outer wall of the cast aluminum tube, thereby improving the centrifugal casting molding effect of the cast aluminum tube;

[0063] S4: Loosen the locking screw 24 installed on the surface of the rotating clamp ring 22, remove the fixed clamp ring 21 and the rotating clamp ring 22, and then remove the liquid stop plate 61 in the centrifugal casting bin 6 area, so as to facilitate the rapid demoulding of the cast aluminum tube.

[0064] Working principle: During the use of the device, the original casting block and the auxiliary powder of cast aluminum are first poured into the melting furnace body 8, and the mixed raw materials are calcined and melted through the set melting furnace body 8, and then the calcined and melted liquid casting is led out through the discharge pipe 81, and this part of the molten liquid is received and transported through the set receiving hopper 43, and the receiving hopper 43 injects the liquid into the insulation material pipe 4, and slowly injects it into the centrifugal casting bin 6 through the transportation of the insulation material pipe 4. When the liquid is continuously injected into the centrifugal casting bin 6, as the centrifugal casting bin 6 rotates at a high speed, the liquid in the centrifugal casting bin 6 will adhere to the inner wall of the centrifugal casting bin 6 due to the centrifugal state, and as the centrifugal casting bin 6 continues to rotate, the liquid inside the centrifugal casting bin 6 is continuously cooled and formed, thereby completing the rapid molding of the cast aluminum centrifugal casting inside the centrifugal casting bin 6;

[0065] In order to ensure that the slurry is evenly and quickly spread on the inner wall of the centrifugal casting bin 6, the transverse feed guide rail 13 is set to drive the vertical platform 41 and the insulation material pipe 4 to be reciprocated and inserted into the centrifugal casting bin 6. When the insulation material pipe 4 is inserted into the centrifugal casting bin 6, the rotating guide rail 411 can drive the insulation material pipe 4 to rotate. When the insulation material pipe 4 rotates, the slurry transported in the insulation material pipe 4 will be quickly thrown out, and the slurry in the insulation material pipe 4 will be thrown to the inner wall of the centrifugal casting bin 6 through the spray box 7 and the spray hole 71. As the transverse feed guide rail 13 drives the spray box 7 and the spray hole 71 to move back and forth, the slurry sprayed from the spray box 7 and the spray hole 71 can be effectively sprayed on multiple areas of the inner wall of the centrifugal casting bin 6, so that the slurry is spread on the inner wall of the centrifugal casting bin 6, ensuring the rapid molding of cast aluminum centrifugal casting;

[0066] As the cast aluminum tube is continuously formed, the feed pipe 81 stops conveying the material liquid, and at the same time, the heat-insulating material pipe 4 is completely inserted into the centrifugal casting bin 6. At this time, the cast aluminum tube begins to cool and form, but a large amount of heat is still retained in the centrifugal casting bin 6. The heat-absorbing blocks 51 installed on both sides of the mounting bin 5 on the surface of the heat-insulating material tube 4 will quickly absorb the heat, and the heat-absorbing blocks 51 will transfer the absorbed heat to the heat-resistant airbag 55. As the heat in the heat-resistant airbag 55 area continues to accumulate, the ammonia stored in the heat-resistant airbag 55 will be quickly heated and its volume will continue to expand as it is heated. The bulging block 56 installed on the top of the heat-resistant airbag 55 will be continuously pushed outwards under the expansion of the heat-resistant airbag 55, and the bulging block 56 drives the arc-shaped grinding block 52 to open outwards until the arc-shaped grinding block 52 is tightly attached to the inner wall of the cast aluminum tube. At this time, the grinding layer 53 on the surface of the arc-shaped grinding block 52 will quickly grind the inner wall of the cast aluminum tube under the high-speed rotation of the centrifugal casting chamber 6. At the same time, the inner wall of the cast aluminum tube is supported by the arc-shaped grinding block 52, and the inner wall of the centrifugal casting chamber 6 will also contact and grind the outer wall of the cast aluminum tube, thereby improving the centrifugal casting molding effect of the cast aluminum tube.

[0067] After the centrifugal casting of the cast aluminum tube is completed, wait for the insulation material tube 4 area to cool down. When the heat-resistant air bag 55 is cooled, the volume of ammonia gas is reduced. When the heat-resistant air bag 55 is contracted, the bulging block 56 and the arc-shaped grinding block 52 are reset. Then, the insulation material tube 4 is pulled out of the centrifugal casting bin 6 through the transverse feed guide 13. Then, the fixed plate 3 and the driving gear 33 are pulled out of the annular gear plate 23 area through the set vertical feed guide 31. Then, the locking screw 24 installed on the surface of the rotating clamp ring 22 is loosened, and the fixed clamp ring 21 and the rotating clamp ring 22 are removed. Then, the liquid stop plate 61 in the centrifugal casting bin 6 area is disassembled, so as to facilitate the rapid demolding of the cast aluminum tube.

[0068] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A centrifugal aluminum casting device for rotor production, characterized in that: It comprises a casting base (1), a mounting clamp (2), an insulating material pipe (4), a melting furnace body (8) and a centrifugal casting bin (6), wherein the mounting clamp (2) is arranged on the top of the casting base (1), the insulating material pipe (4) is arranged in the top area of ​​the mounting clamp (2), the centrifugal casting bin (6) is arranged between adjacent insulating material pipes (4), the melting furnace body (8) is arranged on one side of the top of the casting base (1), and the melting furnace body (8) is connected to the insulating material pipe (4); A casting molten metal homogenizing injection unit, the casting molten metal homogenizing injection unit being arranged at one end of the heat-insulating material pipe (4) close to the centrifugal casting bin (6), and being used for uniformly injecting the casting molten metal during the aluminum casting process, so that the casting molten metal is uniformly distributed inside the centrifugal casting bin (6), thereby accelerating the efficiency of centrifugal aluminum casting in the centrifugal casting bin (6); The casting inner wall homogenizing grinding unit is arranged on the surface of the heat-insulating material tube (4) and is used for grinding the inner cavity of the aluminum tube after the aluminum melt is cooled in the centrifugal aluminum casting step, so as to improve the casting effect of the aluminum tube.

2. The centrifugal aluminum casting device for rotor production according to claim 1, characterized in that: The casting molten metal homogenizing injection unit comprises a transverse feed guide rail (13), a transverse feed groove (12) is arranged on the top of the casting base (1), the transverse feed guide rail (13) is installed inside the transverse feed groove (12), a vertical platform (41) is installed on the movable end of the transverse feed guide rail (13), a rotating guide rail (411) is installed in the central area of ​​the vertical platform (41), the insulating material pipe (4) is installed on the inner wall of the rotating end of the rotating guide rail (411), a heat-resistant rotating elbow joint (42) is installed at one end of the insulating material pipe (4), a receiving hopper (43) is installed at one end of the heat-resistant rotating elbow joint (42), a spray box (7) is installed at one end of the insulating material pipe (4), and the surface of the spray box (7) is evenly provided with spray holes (71).

3. The centrifugal aluminum casting device for rotor production according to claim 2, characterized in that: The casting inner wall homogenizing grinding unit comprises a mounting bin (5), wherein the mounting bins (5) are arranged in a plurality of groups at intervals, and the plurality of groups of mounting bins (5) are installed at intervals on the surface of the heat-insulating material pipe (4), wherein a mounting cavity (54) is arranged inside the mounting bin (5), and a heat-resistant air bag (55) is installed at the bottom of the mounting cavity (54), and a bulging block (56) is installed on the top of the mounting bin (5) so as to slide through the top, and the bottom of the bulging block (56) is fixed to the top of the heat-resistant air bag (55), and an arc-shaped grinding block (52) is installed on the top of the bulging block (56), and a grinding layer (53) is arranged on the surface of the arc-shaped grinding block (52), and heat-absorbing blocks (51) are installed on both sides of the mounting bin (5).

4. The centrifugal aluminum casting device for rotor production according to claim 3 is characterized in that: Feed channels (62) are arranged on both sides of the centrifugal casting bin (6), a liquid stop plate (61) is installed in the area of ​​the feed channel (62), and a feed hole (611) is arranged in the central area of ​​the liquid stop plate (61).

5. The centrifugal aluminum casting device for rotor production according to claim 4, characterized in that: The installation card platform (2) is arranged in two groups, and a drive locking module is installed on the installation card platform (2).

6. A centrifugal aluminum casting device for rotor production according to claim 5, characterized in that: The driving locking module comprises a fixed clamping ring (21), the fixed clamping ring (21) is installed on the top of the adjacent mounting clamping platform (2), a rotating clamping ring (22) is rotatably installed between the adjacent mounting clamping platforms (2), the thermal insulation material pipe (4) is inserted into the fixed clamping ring (21) and the rotating clamping ring (22), a locking screw (24) is installed on the surface of the rotating clamping ring (22), the locking screw (24) is locked on the surface of the centrifugal casting bin (6), and an annular tooth plate (23) is provided on the surface of the rotating clamping ring (22).

7. A centrifugal aluminum casting device for rotor production according to claim 6, characterized in that: The driving locking module also includes a fixed plate (3), a vertical movable groove (11) is arranged on the top of the casting base (1), a vertical feed guide rail (31) is installed in the vertical movable groove (11), the fixed plate (3) is installed on the movable end of the vertical feed guide rail (31), an electric roller (32) is installed between adjacent fixed plates (3), a driving gear (33) is installed on the rotating end of the electric roller (32), and the driving gear (33) is in driving engagement with the annular gear plate (23).

8. The centrifugal aluminum casting device for rotor production according to claim 7, characterized in that: The top of the casting base (1) is also provided with a movable groove (14), the top of the movable groove (14) is provided with a movable guide rail (141), a vertical column (142) is installed on the movable end of the movable guide rail (141), an electric turntable (15) is rotatably installed on the top of the vertical column (142), and the molten material furnace body (8) is installed on the rotating end of the electric turntable (15).

9. A centrifugal aluminum casting device for rotor production according to claim 8, characterized in that: One side of the melting furnace body (8) is connected to a feeding pipe (81), and one end of the feeding pipe (81) is rotatably mounted on the top of the receiving hopper (43).

10. A method, based on the centrifugal aluminum casting device for rotor production according to claim 9, characterized in that: The steps include: S1: The slurry in the centrifugal casting bin (6) adheres to the inner wall of the centrifugal casting bin (6) due to the centrifugal state. As the centrifugal casting bin (6) continues to rotate, the slurry inside the centrifugal casting bin (6) is continuously cooled and formed, thereby completing the rapid forming of the centrifugal casting of cast aluminum inside the centrifugal casting bin (6); S2: The lateral feed guide rail (13) drives the spray box (7) and the spray hole (71) to move back and forth, so that the liquid material sprayed from the spray box (7) and the spray hole (71) can be effectively sprayed on multiple areas of the inner wall of the centrifugal casting bin (6), so that the liquid material is spread all over the inner wall of the centrifugal casting bin (6), which is convenient for rapid molding of cast aluminum; S3: the bulging block (56) drives the arc-shaped grinding block (52) to expand outward until the arc-shaped grinding block (52) is tightly attached to the inner wall of the cast aluminum tube. At this time, the grinding layer (53) on the surface of the arc-shaped grinding block (52) will quickly grind the inner wall of the cast aluminum tube under the high-speed rotation of the centrifugal casting chamber (6). At the same time, the inner wall of the cast aluminum tube is supported by the arc-shaped grinding block (52), and the inner wall of the centrifugal casting chamber (6) will also contact and grind the outer wall of the cast aluminum tube, thereby improving the centrifugal casting molding effect of the cast aluminum tube; S4: Loosen the locking screw (24) mounted on the surface of the rotating clamp ring (22), remove the fixed clamp ring (21) and the rotating clamp ring (22), and then remove the liquid stop plate (61) in the centrifugal casting chamber (6) area, so as to facilitate the rapid demoulding of the cast aluminum tube.

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