Low-pressure casting hub production equipment

Abstract

The invention belongs to the technical field of non-ferrous metal casting, and particularly relates to low-pressure casting hub production equipment which comprises a workbench and a casting forming assembly, the casting forming assembly comprises a first mold installed in the middle of the upper end of the workbench, and side edge molds are arranged on the periphery of the first mold in a sliding mode; a second mold is slidably arranged above the first mold, a feeding assembly is arranged at the lower end of the workbench, a material receiving assembly is rotatably arranged on one side of the workbench, the material receiving assembly comprises a rotating plate rotatably arranged on one side of the workbench, and a heating assembly is arranged at the lower end of the rotating plate; the heating assembly comprises a first air bag fixedly connected to the lower end of the rotating plate, a second air bag is fixedly connected to the interior of the first air bag, hot water is contained between the first air bag and the second air bag, and the hub casting can fall on the upper end of the rotating plate by driving the rotating plate to rotate to the lower end of the second mold; and hot water filled between the first air bag and the second air bag is driven to heat the side mold and the first mold.

Description

Technical Field

[0001] The present invention belongs to the technical field of non-ferrous metal casting, and specifically relates to a low-pressure casting wheel hub production device. Background Art

[0002] Low-pressure casting is a casting method that uses pressure to press molten metal from bottom to top into the casting cavity, and the molten metal solidifies under pressure to obtain the casting. Its main process is to introduce dry compressed air or inert gas into the sealed crucible to increase the pressure in the crucible and drive the molten metal in the crucible to rise along the riser tube. The molten metal rises smoothly along the riser tube and fills the casting cavity. After the wheel hub casting is completed, the mold is opened to remove the wheel hub.

[0003] A patent application with the publication number CN117324591B discloses a wheel hub casting device. By injecting gas into the space inside the upper mold and continuously increasing the internal pressure, the gas is used to push the wheel hub away from the upper mold, avoiding the problem that the wheel hub adheres to the outer wall of the upper mold and cannot be removed in time, resulting in damage to the wheel hub after it falls due to gravity after rising with the upper mold. By changing the contact position of the coolant with the adjacent side mold, the coolant evenly cools the adjacent side mold, improving the forming rate of the wheel hub.

[0004] In the above-mentioned prior art, when removing the wheel hub casting, it is directly dropped on the workbench, which may cause bumps. Moreover, when removing the wheel hub casting, the lower mold is exposed, resulting in heat loss and temperature reduction. As a result, when casting again later, the fluidity of the molten metal is weakened, the solidification time is prolonged, and the problem of rough surface is likely to occur, thereby reducing the appearance quality of the product. Therefore, the present invention provides a low-pressure casting wheel hub production device. Summary of the Invention

[0005] In order to make up for the deficiencies of the prior art and solve at least one technical problem proposed in the background art.

[0006] The technical solution adopted by the present invention to solve its technical problems is as follows: A low-pressure casting wheel production device described in the present invention includes a workbench. A casting and forming assembly is provided at the upper end of the workbench. The casting and forming assembly includes a first mold installed in the middle of the upper end of the workbench. Side molds are slidably arranged around the first mold. A second mold is slidably arranged above the first mold. A crucible is provided at the lower end of the workbench. A first cylinder is fixedly connected inside the crucible through a connecting rod. Circular holes are respectively provided at the positions of the workbench and the middle of the first mold corresponding to the first cylinder. One side of the crucible is connected to an air pump through a connecting pipe. The casting and forming assembly is used for processing and forming the wheel. A material receiving assembly is rotatably arranged on one side of the workbench. The material receiving assembly includes a rotating plate rotatably arranged on one side of the workbench. The material receiving assembly is used for transferring the processed wheel. A heating assembly is provided at the lower end of the rotating plate. The heating assembly includes a first airbag fixedly connected to the lower end of the rotating plate. A second airbag is fixedly connected inside the first airbag. Hot water is filled between the first airbag and the second airbag.

[0007] Preferably, the rotating plate is rotatably arranged on one side of the workbench through a rotating shaft. A cylindrical block is fixedly connected to the middle of the lower end of the rotating plate. A third cylinder is fixedly connected to the lower end of the cylindrical block.

[0008] Preferably, a cavity is provided between the second airbag and the cylindrical block. A first L-shaped through hole is provided at the positions of the cylindrical block and the rotating plate corresponding to the third cylinder. One end of the first L-shaped through hole is communicated with the third cylinder. The other end of the first L-shaped through hole is communicated with the cavity provided between the second airbag and the cylindrical block.

[0009] Preferably, a second L-shaped through hole is provided on one side of the rotating plate. A transparent pipe is fixedly connected to the position of the rotating plate corresponding to the second L-shaped through hole. The end of the second L-shaped through hole far from the transparent pipe is communicated with the cavity provided between the first airbag and the second airbag.

[0010] Preferably, a support block is fixedly connected to one side of the workbench through a support plate. A first hydraulic rod is fixedly connected to the middle of the support block. The output end of the first hydraulic rod is fixedly connected to a first rectangular plate. The second mold is installed at the lower end of the first rectangular plate through a first circular plate.

[0011] Preferably, a second hydraulic rod is fixedly connected to the middle of the first rectangular plate. The output end of the second hydraulic rod is fixedly connected to a third circular plate. The lower end of the first rectangular plate is fixedly connected to the first circular plate through a plurality of first cylindrical rods. The third circular plate is slidably arranged outside the first cylindrical rods. A plurality of second cylindrical rods are fixedly connected to the periphery of the lower end of the third circular plate. All the plurality of second cylindrical rods slidably penetrate through the edge of the first circular plate. The upper end of the rotating plate is fixedly connected to a fourth circular plate through a second spring.

[0012] Preferably, an installation seat is provided at a position corresponding to the rotating plate on one side of the workbench, and the lower end of the installation seat is fixedly connected to the bottom plate through a third hydraulic rod.

[0013] Preferably, a slide rail is fixedly connected to the upper end of the bottom plate, and the crucible is slidably arranged on the upper end of the slide rail.

[0014] Preferably, a rectangular groove is formed in the middle of the workbench, and a second cylinder is slidably arranged at a position corresponding to the first cylinder in the middle of the workbench. The second cylinder can slide into the first cylinder.

[0015] Preferably, a second circular plate is fixedly connected to the upper end of the crucible. The upper end of the first cylinder penetrates through the second circular plate. A rectangular block is slidably arranged inside the rectangular groove. The second cylinder is fixedly connected to the middle of the rectangular block. The upper end of the rectangular block is fixedly connected to the upper end inside the rectangular groove through a first spring. Conical blocks are fixedly connected to both sides of the lower end of the rectangular block. The conical blocks penetrate through the lower end of the workbench. Conical grooves are formed at positions corresponding to the conical blocks on the upper end of the second circular plate. The conical blocks can slide into the conical grooves.

[0016] The beneficial effects of the present invention are as follows: 1. For a low-pressure casting wheel hub production device of the present invention, by driving the rotating plate to rotate to the lower end of the second mold, the wheel hub casting can fall on the upper end of the rotating plate, preventing the wheel hub casting from being knocked, and at the same time driving the first airbag and the second airbag to move downward to the upper end of the first mold, so that the first airbag contacts the surfaces of the first mold and the side mold. Hot water is installed between the first airbag and the second airbag to heat the side mold and the first mold, preventing the temperature from decreasing, solving the problem that the temperature of the side mold and the first mold decreases, resulting in the weakening of the fluidity of the molten metal, the extension of the solidification time, and the easy appearance of rough surfaces during subsequent casting again, thereby reducing the appearance quality of the product.

[0017] 2. For a low-pressure casting wheel hub production device of the present invention, when the crucible filled with molten metal is pushed to the lower end of the workbench, the crucible drives the second circular plate to slide at the lower end of the workbench. The second circular plate slides along the hypotenuse of the conical block, causing the conical block to slide upward. The conical block drives the second cylinder to slide upward in the rectangular groove through the rectangular block and compresses the first spring, so that the lower end of the second cylinder completely slides into the rectangular groove. Subsequently, the crucible is continuously pushed until the conical block slides into the conical groove. At the same time, the first spring releases its elastic force, pushing the rectangular block to drive the second cylinder to move downward and insert into the first cylinder to prevent the molten metal from overflowing. Then pouring can be carried out. When driving the crucible to slide on the upper end of the slide rail to one side of the workbench, the second circular plate is driven to slide to one side, and the conical block slides upward along the hypotenuse of the conical groove, driving the second cylinder to slide upward from the first cylinder through the rectangular block. Then the crucible can be moved out. Description of the Drawings

[0018] The present invention will be further described below with reference to the accompanying drawings.

[0019] Figure 1 is a perspective view of the first embodiment of the present invention; Figure 2 is a schematic structural diagram of the side mold; Figure 3 is a schematic diagram of the crucible position; Figure 4 is a schematic internal view of the crucible cross-section; Figure 5 is a schematic structural diagram of the second mold; Figure 6 is a schematic cross-sectional view of the mounting seat; Figure 7 is a schematic cross-sectional view of the rotating plate; Figure 8 is a schematic cross-sectional view of the workbench; In the figure: 1, workbench; 11, side mold; 12, first mold; 13, second mold; 131, first circular plate; 14, crucible; 141, first cylinder; 142, connecting rod; 143, connecting pipe; 144, air pump; 145, slide rail; 146, second circular plate; 1461, tapered groove; 15, rectangular groove; 151, rectangular block; 152, first spring; 153, second cylinder; 154, tapered block; 16, support plate; 17, support block; 171, first hydraulic rod; 172, first rectangular plate; 173, second hydraulic rod; 174, first cylindrical rod; 175, third circular plate; 176, second cylindrical rod; 2, rotating plate; 21, fourth circular plate; 211, second spring; 22, cylindrical block; 221, third cylinder; 222, first L-shaped through hole; 23, first airbag; 24, second airbag; 25, second L-shaped through hole; 251, transparent pipe; 26, mounting seat; 261, third hydraulic rod; 27, rotating shaft; 3, bottom plate. Specific Embodiments

[0020] In order to make the technical means, creative features, achieved purposes and effects of the present invention easy to understand, the present invention will be further described below in conjunction with specific embodiments.

[0021] Embodiment 1: As Figures 1-5As shown in the figure, a low-pressure casting wheel production device according to an embodiment of the present invention includes a workbench 1. A casting and forming assembly is provided at the upper end of the workbench 1. The casting and forming assembly includes a first mold 12 installed in the middle of the upper end of the workbench 1. A side mold 11 is slidably arranged around the first mold 12, and a second mold 13 is slidably arranged above the first mold 12. A crucible 14 is arranged at the lower end of the workbench 1. A first cylinder 141 is fixedly connected inside the crucible 14 through a connecting rod 142. Circular holes are respectively provided at the positions of the workbench 1 and the middle of the first mold 12 corresponding to the first cylinder 141. One side of the crucible 14 is connected to an air pump 144 through a connecting pipe 143. The casting and forming assembly is used for processing and forming the wheel. A material receiving assembly is rotatably arranged on one side of the workbench 1. The material receiving assembly includes a rotating plate 2 rotatably arranged on one side of the workbench 1. The material receiving assembly is used for transferring the processed wheel. A heating assembly is arranged at the lower end of the rotating plate 2. The heating assembly includes a first airbag 23 fixedly connected to the lower end of the rotating plate 2. A second airbag 24 is fixedly connected inside the first airbag 23. Hot water is filled between the first airbag 23 and the second airbag 24.

[0022] Specifically, when manufacturing wheels, low-pressure casting is generally used for processing. Low-pressure cast wheels have higher structural strength and can withstand greater pressure and load, making the vehicle more stable and reliable during high-speed driving and on complex road conditions. In the prior art during casting, a crucible 14 filled with molten metal is placed at the lower end of a workbench 1, with the first cylinder 141 positioned at the location of a circular hole provided in the middle of the workbench 1 and the first mold 12. Subsequently, the side mold 11 is driven to move towards the middle and closely adhere to the edge of the first mold 12. Then, the upper second mold 13 is driven to move downward. Subsequently, by starting an air pump 144, dry compressed air is introduced into the sealed crucible 14 through a connecting pipe 143, causing the molten metal to rise along the first cylinder 141 under the action of gas pressure and smoothly enter the gap between the side mold 11, the first mold 12, and the second mold 13 through the circular hole provided in the middle of the workbench 1 and the first mold 12. Continuous pressure is applied until the wheel casting crystallizes under pressure, which helps to form a dense structure of the wheel casting. The holding pressure time depends on the structure of the wheel casting and the cooling conditions to ensure that the wheel casting is completely solidified. After the wheel casting is completely solidified, the gas pressure is released, and the molten metal flows back into the crucible 14 under the action of gravity. Subsequently, the second mold 13 is driven upward to drive the formed wheel casting to move upward. In the prior art, when removing the wheel casting, it is directly dropped onto the workbench 1, which may cause bumps. Moreover, when removing the wheel casting, the lower side mold 11 and the first mold 12 are exposed, resulting in heat loss and a decrease in temperature, which in turn causes a decrease in the fluidity of the molten metal and an extension of the solidification time during subsequent casting, easily leading to problems such as rough surfaces and thus reducing the appearance quality of the product. When using this low-pressure casting wheel production equipment, when the second mold 13 drives the formed wheel casting to move upward, the rotating plate 2 is driven to rotate to the lower end of the second mold 13, and then the rotating plate 2 is driven to move downward, driving the first airbag 23 and the second airbag 24 to move downward to the upper end of the first mold 12, so that the first airbag 23 contacts the surfaces of the first mold 12 and the side mold 11. Hot water is contained between the first airbag 23 and the second airbag 24 to heat the side mold 11 and the first mold 12 to prevent temperature reduction. At the same time, the wheel casting outside the second mold 13 can fall onto the upper end of the rotating plate 2. Subsequently, the rotating plate 2 is driven to rotate to one side of the workbench 1 to remove the wheel casting, and then a new round of wheel casting can be carried out. By driving the rotating plate 2 to rotate to the lower end of the second mold 13, the wheel casting can fall onto the upper end of the rotating plate 2 to prevent bumps to the wheel casting. At the same time, the first airbag 23 and the second airbag 24 are driven to move downward to the upper end of the first mold 12, so that the first airbag 23 contacts the surfaces of the first mold 12 and the side mold 11. Hot water is contained between the first airbag 23 and the second airbag 24 to heat the side mold 11 and the first mold 12 to prevent temperature reduction, solving the problem of temperature reduction of the side mold 11 and the first mold 12, which in turn causes problems during subsequent casting again.This causes the fluidity of the molten metal to weaken, the solidification time to extend, and it is easy to have problems such as rough surfaces, thereby reducing the appearance quality of the product. As Figure 1 , Figure 7 As shown, the rotating plate 2 is rotatably arranged on one side of the workbench 1 through the rotating shaft 27. A cylindrical block 22 is fixedly connected to the middle of the lower end of the rotating plate 2, and a third cylinder 221 is fixedly connected to the lower end of the cylindrical block 22.

[0023] Specifically, when it is necessary to remove the hub casting, the rotating shaft 27 is driven to rotate to drive the rotating plate 2 to rotate to the lower end of the second mold 13. The rotating shaft 27 can be driven by electricity. Subsequently, the rotating plate 2 is driven by electricity to slide downward outside the rotating shaft 27, driving the cylindrical block 22 to be located above the first mold 12, so that the third cylinder 221 is located above the round hole provided in the middle of the workbench 1 and the first mold 12. Subsequently, dry air is introduced into the third cylinder 221, and dry air is blown into the first cylinder 141, so that the molten metal inside the first cylinder 141 quickly returns to the crucible 14 to prevent solidification.

[0024] As Figure 7 As shown, there is a cavity between the second airbag 24 and the cylindrical block 22. The cylindrical block 22 and the rotating plate 2 are provided with a first L-shaped through hole 222 corresponding to the position of the third cylinder 221. One end of the first L-shaped through hole 222 communicates with the third cylinder 221, and the other end of the first L-shaped through hole 222 communicates with the cavity provided between the second airbag 24 and the cylindrical block 22.

[0025] Specifically, when the rotating plate 2 is driven to slide downward, the rotating plate 2 drives the first airbag 23 and the second airbag 24 to move downward and closely adhere to the first mold 12 and the side mold 11, so that the third cylinder 221 is located above the round hole provided in the middle of the workbench 1 and the first mold 12. At the same time, the air between the second airbag 24 and the cylindrical block 22 is squeezed, and the gas enters the third cylinder 221 through the first L-shaped through hole 222, and then enters the first cylinder 141, pushing the molten metal in the first cylinder 141 into the crucible 14 to prevent solidification.

[0026] As Figure 7 As shown, a second L-shaped through hole 25 is provided on one side of the rotating plate 2. A transparent tube 251 is fixedly connected to the rotating plate 2 corresponding to the position of the second L-shaped through hole 25. One end of the second L-shaped through hole 25 away from the transparent tube 251 communicates with the cavity provided between the first airbag 23 and the second airbag 24.

[0027] Specifically, after the hot water between the first airbag 23 and the second airbag 24 is repeatedly used, water evaporation will occur and needs to be replenished. By observing the water in the transparent tube 251, it is determined whether the water between the first airbag 23 and the second airbag 24 is sufficient. When water needs to be replenished, water is added between the first airbag 23 and the second airbag 24 through the transparent tube 251, and then the transparent tube 251 is blocked.

[0028] As Figure 1 , Figure 5 shown, one side of the workbench 1 is fixedly connected with a support block 17 through a support plate 16. A first hydraulic rod 171 is fixedly connected to the middle of the support block 17. The output end of the first hydraulic rod 171 is fixedly connected with a first rectangular plate 172. The second mold 13 is installed at the lower end of the first rectangular plate 172 through a first circular plate 131.

[0029] Specifically, by driving the first hydraulic rod 171 to extend, the first rectangular plate 172 is driven to move downward. The first rectangular plate 172 drives the second mold 13 to move downward through the first circular plate 131. The second mold 13 moves to the upper end of the first mold 12, and then casting is carried out.

[0030] As Figures 5-6 shown, a second hydraulic rod 173 is fixedly connected to the middle of the first rectangular plate 172. The output end of the second hydraulic rod 173 is fixedly connected with a third circular plate 175. The lower end of the first rectangular plate 172 is fixedly connected with the first circular plate 131 through a plurality of first cylindrical rods 174. The third circular plate 175 is slidably arranged outside the first cylindrical rods 174. A plurality of second cylindrical rods 176 are fixedly connected to the periphery of the lower end of the third circular plate 175. A plurality of second cylindrical rods 176 all slidably penetrate through the edge of the first circular plate 131. The upper end of the rotating plate 2 is fixedly connected with a fourth circular plate 21 through a second spring 211.

[0031] Specifically, when removing the hub casting from the second mold 13, the rotating plate 2 is driven to rotate to the lower end of the second mold 13, and then the second mold 13 is driven to move downward, driving the hub casting to move downward and contact the fourth circular plate 21. Then the second hydraulic rod 173 is driven to extend, driving the third circular plate 175 to slide downward outside the first cylindrical rods 174, driving the second cylindrical rods 176 to slide in the middle of the first circular plate 131. The second cylindrical rods 176 push the edge of the hub casting downward, causing the hub casting to move downward, and at the same time driving the fourth circular plate 21 to move downward and compress the second spring 211, so that the hub casting is placed on the upper end of the fourth circular plate 21.

[0032] As Figure 6 shown, an installation seat 26 is provided at one side of the workbench 1 corresponding to the position of the rotating plate 2. The lower end of the installation seat 26 is fixedly connected with the bottom plate 3 through a third hydraulic rod 261.

[0033] Specifically, when the rotating plate 2 moves to one side of the workbench 1, the rotating plate 2 drives the first airbag 23 and the second airbag 24 to be located at the upper end of the mounting seat 26. Subsequently, the third hydraulic rod 261 is driven to extend. When the mounting seat 26 moves upward, the first airbag 23 and the second airbag 24 are located inside the mounting seat 26. A heating device is provided inside the mounting seat 26 to heat the water between the first airbag 23 and the second airbag 24 to ensure the water temperature.

[0034] As Figure 3 shown, a slide rail 145 is fixedly connected to the upper end of the bottom plate 3, and the crucible 14 is slidably arranged on the upper end of the slide rail 145.

[0035] Specifically, when the molten metal in the crucible 14 is used up, the crucible 14 is driven to slide on the upper end of the slide rail 145, so that the crucible 14 slides to one side of the workbench 1, and then the molten metal can be replenished into the crucible 14.

[0036] Embodiment 2: As Figure 8 shown, compared with Embodiment 1, another implementation manner of the present invention is as follows: A rectangular groove 15 is formed in the middle of the workbench 1, and a second cylinder 153 is slidably arranged at the position corresponding to the first cylinder 141 in the middle of the workbench 1. The second cylinder 153 can slide into the first cylinder 141.

[0037] Specifically, when the crucible 14 is located at the lower end of the workbench 1, the second cylinder 153 is driven to slide downward so that the second cylinder 153 slides into the first cylinder 141. Subsequently, low-pressure injection is carried out, so that the molten metal in the crucible 14 enters between the first mold 12 and the second mold 13 through the first cylinder 141 and the second cylinder 153, preventing the molten metal from overflowing.

[0038] As Figure 8 shown, a second circular plate 146 is fixedly connected to the upper end of the crucible 14. The upper end of the first cylinder 141 penetrates through the second circular plate 146. A rectangular block 151 is slidably arranged inside the rectangular groove 15. The second cylinder 153 is fixedly connected to the middle of the rectangular block 151. The upper end of the rectangular block 151 is fixedly connected to the upper end inside the rectangular groove 15 through a first spring 152. Conical blocks 154 are fixedly connected to both sides of the lower end of the rectangular block 151. The conical blocks 154 penetrate through the lower end of the workbench 1. Conical grooves 1461 are formed at the positions corresponding to the conical blocks 154 on the upper end of the second circular plate 146. The conical blocks 154 can slide into the conical grooves 1461.

[0039] Specifically, when the crucible 14 filled with molten metal is pushed to the lower end of the workbench 1, the crucible 14 drives the second circular plate 146 to slide at the lower end of the workbench 1. The second circular plate 146 slides along the inclined side of the tapered block 154, causing the tapered block 154 to slide upward. The tapered block 154 drives the second cylinder 153 to slide upward in the rectangular groove 15 through the rectangular block 151, and compresses the first spring 152, so that the lower end of the second cylinder 153 completely slides into the rectangular groove 15. Subsequently, the crucible 14 is continuously pushed until the tapered block 154 slides into the tapered groove 1461. At the same time, the first spring 152 releases its elastic force, pushing the rectangular block 151 to drive the second cylinder 153 to move downward and insert into the first cylinder 141. Subsequently, pouring can be carried out. When the crucible 14 is driven to slide towards one side of the workbench 1 at the upper end of the slide rail 145, it drives the second circular plate 146 to slide towards one side. The tapered block 154 slides upward along the inclined side of the tapered groove 1461, driving the second cylinder 153 to slide upward from the first cylinder 141 through the rectangular block 151. Subsequently, the crucible 14 can be moved out.

[0040] Working principle: When the crucible 14 filled with molten metal is pushed to the lower end of the workbench 1, the crucible 14 drives the second circular plate 146 to slide at the lower end of the workbench 1. The second circular plate 146 slides along the inclined side of the tapered block 154, causing the tapered block 154 to slide upward. The tapered block 154 drives the second cylinder 153 to slide upward in the rectangular groove 15 through the rectangular block 151, and compresses the first spring 152, so that the lower end of the second cylinder 153 completely slides into the rectangular groove 15. Subsequently, the crucible 14 is continuously pushed until the tapered block 154 slides into the tapered groove 1461. At the same time, the first spring 152 releases its elastic force, pushing the rectangular block 151 to drive the second cylinder 153 to move downward and insert into the first cylinder 141. Subsequently, the side mold 11 is driven to move towards the middle and closely adhere to the edge of the first mold 12. Then, the upper second mold 13 is driven to move downward. Subsequently, by starting the air pump 144, dry compressed air is introduced into the sealed crucible 14 through the connecting pipe 143, so that the molten metal rises along the first cylinder 141 under the action of gas pressure and smoothly enters the gap between the side mold 11, the first mold 12 and the second mold 13 through the round holes provided in the middle of the workbench 1 and the first mold 12. Continuous pressurization is carried out until the hub casting crystallizes under pressure, which helps to form a dense structure of the hub casting. The holding time depends on the structure and cooling conditions of the hub casting to ensure that the hub casting is completely solidified. By driving the rotation of the rotating shaft 27, the rotating plate 2 is driven to rotate to the lower end of the second mold 13. The rotating shaft 27 can be driven by electricity. Subsequently, the rotating plate 2 is driven to slide downward outside the rotating shaft 27 by electricity, and at the same time, the first airbag 23 and the second airbag 24 are driven to move downward to the upper end of the first mold 12, so that the first airbag 23 contacts the surfaces of the first mold 12 and the side mold 11. Hot water is installed between the first airbag 23 and the second airbag 24 to heat the side mold 11 and the first mold 12 to prevent the temperature from dropping. At the same time, the third cylinder 221 is located above the round hole provided in the middle of the workbench 1 and the first mold 12. At the same time, the air between the second airbag 24 and the cylindrical block 22 is squeezed, and the gas enters the third cylinder 221 through the first L-shaped through hole 222, and then enters the first cylinder 141, and the molten metal in the first cylinder 141 is pushed into the crucible 14 to prevent solidification. Subsequently, the second mold 13 is driven to move downward, driving the hub casting to move downward and contact the fourth circular plate 21. Subsequently, the second hydraulic rod 173 is driven to extend, driving the third circular plate 175 to slide downward outside the first cylindrical rod 174, driving the second cylindrical rod 176 to slide in the middle of the first circular plate 131, and the second cylindrical rod 176 pushes the edge of the hub casting downward, so that the hub casting moves downward, and at the same time drives the fourth circular plate 21 to move downward and squeeze the second spring 211, so that the hub casting can be placed on the upper end of the fourth circular plate 21.

[0041] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. A low-pressure casting wheel hub production equipment, comprising a workbench (1), wherein a casting molding assembly is provided at the upper end of the workbench (1), wherein the casting molding assembly comprises a first mold (12) installed in the middle of the upper end of the workbench (1), side molds (11) are slidably provided around the first mold (12), and a second mold (13) is slidably provided above the first mold (12), and a crucible (14) is provided at the lower end of the workbench (1), and a first cylinder (141) is fixedly connected to the inside of the crucible (14) through a connecting rod (142), and circular holes are respectively provided at positions corresponding to the first cylinder (141) in the middle of the workbench (1) and the first mold (12), and an air pump (144) is connected to one side of the crucible (14) through a connecting pipe (143), and the casting molding assembly is used for processing and molding the wheel hub, and a material receiving assembly is rotatably provided on one side of the workbench (1), characterized in that: The material receiving assembly comprises a rotating plate (2) rotatably arranged on one side of the workbench (1), the material receiving assembly is used to transfer the wheel hub after processing, a heating assembly is arranged at the lower end of the rotating plate (2), the heating assembly comprises a first airbag (23) fixedly connected to the lower end of the rotating plate (2), a second airbag (24) fixedly connected inside the first airbag (23), and hot water is filled between the first airbag (23) and the second airbag (24).

2. The low-pressure casting wheel hub production equipment according to claim 1, characterized in that: The rotating plate (2) is rotatably arranged on one side of the workbench (1) via a rotating shaft (27); a cylindrical block (22) is fixedly connected to the middle of the lower end of the rotating plate (2); and a third cylinder (221) is fixedly connected to the lower end of the cylindrical block (22).

3. The low-pressure casting wheel hub production equipment according to claim 2, characterized in that: A cavity is provided between the second airbag (24) and the cylindrical block (22); a first L-shaped through hole (222) is provided at a position of the cylindrical block (22) and the rotating plate (2) corresponding to the third cylinder (221); one end of the first L-shaped through hole (222) is connected to the third cylinder (221); the other end of the first L-shaped through hole (222) is connected to the cavity provided between the second airbag (24) and the cylindrical block (22).

4. The low-pressure casting wheel hub production equipment according to claim 3, characterized in that: A second L-shaped through hole (25) is provided on one side of the rotating plate (2); a transparent tube (251) is fixedly connected to a position on the side of the rotating plate (2) corresponding to the second L-shaped through hole (25); and an end of the second L-shaped through hole (25) away from the transparent tube (251) is connected to a cavity provided between the first airbag (23) and the second airbag (24).

5. The low-pressure casting wheel hub production equipment according to claim 4, characterized in that: A support block (17) is fixedly connected to one side of the workbench (1) via a support plate (16); a first hydraulic rod (171) is fixedly connected to the middle of the support block (17); an output end of the first hydraulic rod (171) is fixedly connected to a first rectangular plate (172); and the second mold (13) is mounted on the lower end of the first rectangular plate (172) via a first circular plate (131).

6. The low pressure casting wheel hub production equipment according to claim 5, characterized in that: A second hydraulic rod (173) is fixedly connected to the middle of the first rectangular plate (172); a third circular plate (175) is fixedly connected to the output end of the second hydraulic rod (173); the lower end of the first rectangular plate (172) is fixedly connected to the first circular plate (131) via a plurality of first cylindrical rods (174); the third circular plate (175) is slidably arranged outside the first cylindrical rod (174); a plurality of second cylindrical rods (176) are fixedly connected around the lower end of the third circular plate (175); the plurality of second cylindrical rods (176) all slidably penetrate the edge of the first circular plate (131); and the upper end of the rotating plate (2) is fixedly connected to the fourth circular plate (21) via a second spring (211).

7. The low-pressure casting wheel hub production equipment according to claim 1, characterized in that: A mounting seat (26) is provided at a position corresponding to the rotating plate (2) on one side of the workbench (1), and a lower end of the mounting seat (26) is fixedly connected to the bottom plate (3) via a third hydraulic rod (261).

8. The low-pressure casting wheel hub production equipment according to claim 7, characterized in that: A slide rail (145) is fixedly connected to the upper end of the bottom plate (3), and the crucible (14) is slidably arranged on the upper end of the slide rail (145).

9. The low-pressure casting wheel hub production equipment according to claim 8, characterized in that: A rectangular groove (15) is provided in the middle of the workbench (1), and a second cylinder (153) is slidably provided in the middle of the workbench (1) at a position corresponding to the first cylinder (141), and the second cylinder (153) can slide into the interior of the first cylinder (141).

10. The low pressure casting wheel hub production equipment according to claim 9, characterized in that: A second circular plate (146) is fixedly connected to the upper end of the crucible (14); the upper end of the first cylinder (141) passes through the second circular plate (146); a rectangular block (151) is slidably arranged inside the rectangular groove (15); the second cylinder (153) is fixedly connected to the middle of the rectangular block (151); the upper end of the rectangular block (151) is fixedly connected to the upper end of the rectangular groove (15) through a first spring (152); conical blocks (154) are fixedly connected to both sides of the lower end of the rectangular block (151); the conical block (154) passes through the lower end of the workbench (1); a conical groove (1461) is provided at the upper end of the second circular plate (146) at a position corresponding to the conical block (154); the conical block (154) can slide into the conical groove (1461).

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