Hub casting device

Abstract

The invention discloses a hub casting device which comprises a casting table, a lower mold horizontally fixed to the casting table, an upper mold horizontally arranged above the casting table in a liftable mode and used in cooperation with the lower mold, a water cooling mechanism and an air cooling mechanism. A lifting plate is horizontally arranged above the casting table in a lifting mode, a lower mold capable of covering the casting table is fixedly arranged at the bottom end of the lifting plate, and a first S-shaped cooling pipe and a second S-shaped cooling pipe are evenly and fixedly arranged on the outer surface of the lower mold and the outer surface of the upper mold in the circumferential direction correspondingly. Two water cooling mechanisms are fixedly arranged at the bottom end of the casting table and the upper end of the lifting plate correspondingly, the hub casting device cools the lower mold and the upper mold at the same time through the water cooling mechanisms and the air cooling mechanisms after mold closing, and the cooling effect and the cooling efficiency are greatly improved.

Description

Technical Field

[0001] The present invention relates to the technical field of wheel hub casting, and specifically, to a wheel hub casting device. Background Art

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

[0003] After retrieval, the Chinese patent application number is "CN202311628178.6", which discloses a wheel hub casting device. It includes a support frame, a first hydraulic element is fixedly connected to the support frame, an upper mold is slidably connected to the telescopic ends of the support frame and the first hydraulic element, an extrusion block cooperates with a ring of cooperating blocks, a side mold is provided with a cooling assembly, the cooling assembly includes a liquid inlet pipe fixedly connected to an adjacent side mold, a liquid outlet pipe is fixedly connected to the side mold, a fan-shaped array of counter-flushing channels is arranged in the side mold, a linear array of annular channels is arranged in the side mold, the fan-shaped array of counter-flushing channels communicates with the adjacent linear array of annular channels, and the liquid inlet pipe and the liquid outlet pipe are respectively communicated with the adjacent counter-flushing channels. In the present invention, the stirring fan blades rotate to stir the coolant in the counter-flushing channels, change the contact position of the coolant with the adjacent side mold, and enable the coolant to evenly cool the adjacent side mold.

[0004] The inventor found the following problems in the prior art during the implementation of the present invention: During use, the cooling effect of the existing cooling assembly is poor, resulting in a long cooling and forming time for the casting, thereby reducing work efficiency.

[0005] Therefore, it is an urgent problem to be solved by the present invention to provide a wheel hub casting device that cools the lower mold and the upper mold after mold clamping through two methods of a water cooling mechanism and an air cooling mechanism during use, greatly improving the cooling effect and cooling efficiency. Summary of the Invention

[0006] Aiming at the above technical problems, the object of the present invention is to overcome the problem in the prior art that during use, the cooling effect of the existing cooling assembly is poor, resulting in a long cooling and forming time for the casting, thereby reducing work efficiency. Thus, a wheel hub casting device is provided that cools the lower mold and the upper mold after mold clamping through two methods of a water cooling mechanism and an air cooling mechanism during use, greatly improving the cooling effect and cooling efficiency.

[0007] To achieve the above object, the present invention provides a wheel hub casting device, which comprises: a casting table, a lower mold horizontally fixed on the casting table, an upper mold horizontally and vertically movably arranged above the casting table and used in cooperation with the lower mold, a water cooling mechanism and an air cooling mechanism; An elevator plate is horizontally and vertically movably arranged above the casting table. The bottom end of the elevator plate is fixedly provided with a lower mold capable of covering the casting table. The outer surfaces of the lower mold and the upper mold are respectively and uniformly fixedly provided with serpentine first cooling pipes and second cooling pipes along their respective circumferential directions. Two water cooling mechanisms are respectively fixedly provided at the bottom end of the casting table and the upper end of the elevator plate. The water inlet ends of the first cooling pipes and the second cooling pipes are respectively connected to the water outlet ends of the two water cooling mechanisms corresponding to them, and the water outlet ends of both are respectively connected to the water inlet ends of the two water cooling mechanisms. An air cooling mechanism capable of moving along the circumferential direction of the casting table to blow air and dissipate heat from the lower mold and the upper mold covered together is arranged at the upper end of the casting table.

[0008] Preferably, each of the water cooling mechanisms comprises a refrigeration box, ice cubes and a condensation pipe; wherein, Ice cubes are placed inside the refrigeration box capable of refrigerating. The condensation pipe, which is full of water inside and serpentine, is fixed on the inner wall of the refrigeration box and abuts against the ice cubes. A water pump is fixedly provided at the water outlet end of each condensation pipe located outside the refrigeration box.

[0009] Preferably, a plurality of semiconductor refrigerators with their refrigeration ends abutting against the outer walls are equally spaced and fixedly provided on the outer walls of the two refrigeration boxes.

[0010] Preferably, the air cooling mechanism comprises: a rotating seat, a bracket and a fan; wherein, An upper part of the upper end of the casting table protrudes upward to form a boss for supporting the lower mold. The rotating seat is horizontally and rotatably arranged on the boss. The upper end of the rotating seat is vertically and equally spaced along its circumferential direction and fixedly provided with brackets in an n-shaped structure. The free ends of the brackets are vertically and partially extended between the rotating seat and the semi-boss, and a plurality of fans capable of blowing air toward the lower mold and the upper mold covered together are horizontally arranged at equal intervals along the height direction of the vertical part of the bracket close to the casting table.

[0011] Preferably, the device further comprises a driving assembly for driving the rotating seat to rotate. The driving assembly comprises: a driving gear, a driven gear and a driving motor; wherein, A driven gear is coaxially and fixedly provided on the rotating seat, and a driving motor is vertically and fixedly provided at the upper end of the casting table beside it. A driving gear meshed with the driven gear is coaxially and fixedly provided on the output shaft of the driving motor.

[0012] Preferably, the device further includes an electric telescopic rod for driving the lifting plate to horizontally lift and lower in the vertical direction; wherein, At the upper ends of the casting tables on both sides of the lower mold, support seats in an inverted L shape are respectively vertically and fixedly arranged, and an electric telescopic rod is vertically and fixedly arranged at the top of each support seat, and the telescopic end of each electric telescopic rod is fixed on the lifting plate.

[0013] Preferably, the electric telescopic rod can be a cylinder, a hydraulic cylinder or a servo electric cylinder.

[0014] According to the above technical solution, the beneficial effects of the wheel hub casting device provided by the present invention when in use are as follows: (1) When in use, drive the upper mold to rise along the vertical direction by driving the lifting plate, so that the upper mold leaves the lower mold, pour the molten raw material liquid into the lower mold from the open mouth of the lower mold, and then drive the upper mold to descend along the vertical direction by driving the lifting plate until it abuts against the open mouth of the lower mold, and perform mold closing to carry out the casting operation on the wheel hub. After the product is formed, cool the upper mold and the lower mold that are closed together through the water cooling mechanism and the air cooling mechanism. During the cooling process, the air cooling mechanism is respectively communicated with the first cooling pipe and the second cooling pipe on the surfaces of the lower mold and the upper mold. Therefore, the coolant in the water cooling mechanism can circulate along the surfaces of the lower mold and the upper mold to quickly cool the product in the closed mold.

[0015] (2) The air cooling mechanism can move along the circumferential direction of the lower mold while blowing air towards the lower mold and the upper mold, further improving the cooling effect and cooling efficiency. The function of quickly realizing cooling is achieved, thereby improving the working efficiency.

[0016] In summary, the present invention cools the lower mold and the upper mold after mold closing through two methods, namely the water cooling mechanism and the air cooling mechanism, greatly improving the cooling effect and cooling efficiency.

[0017] Other features and advantages of the present invention will be described in detail in the subsequent specific implementation part; and the parts not involved in the present invention are the same as the prior art or can be implemented by using the prior art. Description of the Drawings

[0018] The drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the following specific implementation, they are used to explain the present invention, but do not constitute a limitation to the present invention. In the drawings: Figure 1 is a schematic structural diagram of a wheel hub casting device provided in a preferred embodiment of the present invention; Figure 2 It is a structural sectional view of a hub casting device provided in a preferred embodiment of the present invention; Figure 3 It is an assembly schematic diagram of the lower mold of the hub casting device provided in a preferred embodiment of the present invention.

[0019] Explanation of reference numerals 1, casting table; 2, lower mold; 3, upper mold; 4, lifting plate; 5, first cooling pipe; 6, second cooling pipe; 7, water cooling mechanism; 701, refrigeration box; 702, ice cubes; 703, condensing pipe; 8, air cooling mechanism; 801, rotating seat; 802, bracket; 803, fan; 9, driving component; 10, support seat; 11, electric telescopic rod; 12, semiconductor refrigerator; 13, boss. Specific embodiments

[0020] The following will describe in detail the specific embodiments of the present invention with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only for the purpose of illustrating and explaining the present invention, and are not intended to limit the present invention.

[0021] As Figures 1-3 shown, a hub casting device provided by the present invention includes: a casting table 1, a lower mold 2 horizontally fixed on the casting table 1, an upper mold 3 horizontally and liftably arranged above the casting table 1 and used in cooperation with the lower mold 2, a water cooling mechanism 7 and an air cooling mechanism 8; Above the casting table 1, a lifting plate 4 is horizontally and liftably arranged. The bottom end of the lifting plate 4 is fixedly provided with a lower mold 2 that can cover the casting table 1. The outer surfaces of the lower mold 2 and the upper mold 3 are respectively and uniformly fixedly provided with serpentine first cooling pipes 5 and second cooling pipes 6 along their respective circumferential directions. Two water cooling mechanisms 7 are respectively fixedly provided at the bottom end of the casting table 1 and the upper end of the lifting plate 4. The water inlet ends of the first cooling pipe 5 and the second cooling pipe 6 are respectively connected to the water outlet ends of their respective corresponding two water cooling mechanisms 7, and their water outlet ends are respectively connected to the water inlet ends of the two water cooling mechanisms 7. An air cooling mechanism 8 is arranged at the upper end of the casting table 1 and can move along the circumferential direction of the casting table 1 to blow air and dissipate heat from the lower mold 2 and the upper mold 3 that are covered together.

[0022] In the above solution, during use, the lifting plate 4 is driven to drive the upper mold 3 to rise in the vertical direction, so that the upper mold 3 leaves the lower mold 2, and the molten raw material liquid is poured into the lower mold 2 from the open end of the lower mold 2. Then, the lifting plate 4 is driven to drive the upper mold 3 to descend in the vertical direction until it abuts against the open end of the lower mold 2, and the molds are closed to perform the casting operation on the hub. Subsequently, the combined upper mold 3 and lower mold 2 are cooled by the water cooling mechanism 7 and the air cooling mechanism 8. During the cooling process, the air cooling mechanism 7 is respectively communicated with the first cooling pipes 5 and the second cooling pipes 6 on the surfaces of the lower mold 2 and the upper mold 3. Therefore, the coolant in the water cooling mechanism 7 can circulate along the surfaces of the lower mold 2 and the upper mold 3 to quickly cool the product in the closed mold. The air cooling mechanism 8 can move along the circumferential direction of the lower mold 2 while blowing air towards the lower mold 2 and the upper mold 3, further improving the cooling effect and cooling efficiency. The function of quickly realizing cooling and forming is achieved, thereby improving the working efficiency.

[0023] In a preferred embodiment of the present invention, each of the water cooling mechanisms 7 includes a refrigeration box 701, ice cubes 702, and a condensation pipe 703; wherein, The ice cubes 702 are placed inside the refrigeration box 701 capable of refrigeration, and the condensation pipe 703 that is filled with water inside and is in a serpentine shape is fixed on the inner wall of the refrigeration box 701 and abuts against the ice cubes 702. A water pump is fixedly arranged at the water outlet end of each condensation pipe 703 located outside the refrigeration box 701.

[0024] In the above solution, as Figure 2 and 3 shown, two water pumps are respectively fixed at the bottom end of the lifting plate 4 and the boss 13 of the casting table 1 to enable the water in the first cooling pipes 5 and the second cooling pipes 6 to circulate.

[0025] During use, the two water pumps are respectively started, and the water in the first cooling pipe 5 or the second cooling pipe 6 respectively passes through the condensation pipe 703 for heat exchange with the ice cubes 702 and then enters the first cooling pipe 5 or the second cooling pipe 6 to realize water circulation. At the same time, the coolant circulating to the first cooling pipe 5 or the second cooling pipe 6 exchanges heat with the lower mold 2 and the upper mold 3 to cool the product in the closed mold by means of water cooling.

[0026] In a preferred embodiment of the present invention, a plurality of semiconductor refrigerators 12 with their refrigeration ends abutting against the outer walls are evenly spaced and fixedly arranged on the outer walls of the two refrigeration boxes 701.

[0027] In the above solution, a thermoelectric cooler refers to a device that uses the thermoelectric effect of semiconductors to produce cooling capacity, also known as a thermoelectric refrigerator. Connect two different metals with a conductor and connect direct current, then the temperature at one contact point decreases and the temperature at the other contact point increases. A thermoelectric cooler is composed of many pairs of thermoelectric elements combined in parallel and series, also called a thermopile. A single-stage thermopile can obtain a temperature difference of about 60 °C, that is, the temperature at the cold end can reach -10 to -20 °C.

[0028] Therefore, through the thermoelectric cooler 12, the internal environment of the refrigeration box 701 can be refrigerated, so that the temperature inside the refrigeration box 701 is below 0 °C to prevent the ice cubes 702 inside from melting.

[0029] In a preferred embodiment of the present invention, the air-cooling mechanism 8 includes: a rotating base 801, a bracket 802, and a fan 803; wherein, The upper part of the casting table 1 bulges upward to form a boss 13 for supporting the lower mold 2. The rotating base 801 is horizontally and rotatably arranged on the boss 13. Along the circumferential direction of the upper end of the rotating base 801, brackets 802 having an n-shaped structure are vertically and equally spaced and fixedly arranged. The free end of the bracket 802 is vertical and partially extends between the rotating base 801 and the semi-boss 13. Along the height direction of the vertical part of the bracket 802 close to the casting table 1, a plurality of fans 803 capable of blowing air toward the lower mold 2 and the upper mold 3 that are closed together are horizontally arranged at equal intervals.

[0030] In the above solution, during use, by rotating the rotating base 801, a plurality of the brackets 802 and a plurality of fans 803 thereon are driven to move along the circumferential direction of the lower mold 2. During the movement, a plurality of the fans 803 on each of the brackets 802 are started to blow air toward the lower mold 2 and the upper mold 3, so as to cooperate with the water-cooling mechanism 7 to quickly cool the product in the closed mold in all directions, thereby improving the cooling efficiency and effect.

[0031] In a preferred embodiment of the present invention, the device further includes a driving component 9 for driving the rotation of the rotating base 801. The driving component 9 includes: a driving gear, a driven gear, and a driving motor; wherein, A driven gear is coaxially and fixedly arranged on the rotating base 801, and a driving motor is vertically and fixedly arranged at the upper end of the casting table 1 beside it. A driving gear meshingly connected with the driven gear is coaxially and fixedly arranged on the output shaft of the driving motor.

[0032] In the above solution, when in use, the driving motor is started to drive the driving gear on its output shaft to rotate together, and during the rotation process, the driven gear meshed with it can be driven to rotate, thereby driving the rotating seat 801 to rotate.

[0033] In addition, the driving motor can be a reduction motor.

[0034] In a preferred embodiment of the present invention, the device further includes an electric telescopic rod 11 for driving the lifting plate 4 to horizontally lift in the vertical direction; wherein, At the upper ends of the casting platforms 1 on both sides of the lower mold 2, inverted L-shaped support seats 10 are respectively vertically and fixedly arranged, and an electric telescopic rod 11 is vertically and fixedly arranged on the top of each support seat 10, and the telescopic end of each electric telescopic rod 11 is fixed on the lifting plate 4.

[0035] In the above solution, when in use, by synchronously driving the telescopic ends of the two electric telescopic rods 11 to extend out of or retract into their cylinders, the lifting plate 4 is driven to lift in the vertical direction to provide driving force for it.

[0036] In a preferred embodiment of the present invention, the electric telescopic rod 11 can be a cylinder, a hydraulic cylinder or a servo electric cylinder.

[0037] In summary, the hub casting device provided by the present invention overcomes the problem in the prior art that during use, the cooling effect of the existing cooling component is poor, resulting in a long cooling and forming time of the casting, thereby reducing the working efficiency.

[0038] The preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the specific details in the above embodiments. Within the scope of the technical concept of the present invention, various simple modifications can be made to the technical solutions of the present invention, and these simple modifications all fall within the protection scope of the present invention.

[0039] In addition, it should be noted that, in the above specific embodiments, the various specific technical features described can be combined in any appropriate manner without conflict. To avoid unnecessary repetition, the present invention will not separately describe various possible combination methods.

[0040] Furthermore, any combination can be made between different embodiments of the present invention as long as it does not violate the idea of the present invention, and it should also be regarded as the content disclosed by the present invention.

Claims

1. A wheel hub casting device, characterized in that, The device includes: a casting table (1), a lower mold (2) horizontally fixed on the casting table (1), an upper mold (3) horizontally and liftably arranged above the casting table (1) and used in cooperation with the lower mold (2), a water cooling mechanism (7) and an air cooling mechanism (8). Above the casting table (1), a lifting plate (4) is horizontally and liftably arranged. The bottom end of the lifting plate (4) is fixedly provided with a lower mold (2) that can cover the casting table (1). On the outer surfaces of the lower mold (2) and the upper mold (3), serpentine first cooling pipes (5) and second cooling pipes (6) are respectively and uniformly fixedly arranged along their respective circumferential directions. Two water cooling mechanisms (7) are respectively fixedly arranged at the bottom end of the casting table (1) and the upper end of the lifting plate (4). The water inlet ends of the first cooling pipe (5) and the second cooling pipe (6) are respectively connected to the water outlet ends of their respective corresponding two water cooling mechanisms (7), and their water outlet ends are respectively connected to the water inlet ends of the two water cooling mechanisms (7). An air cooling mechanism (8) is arranged at the upper end of the casting table (1) and can move along the circumferential direction of the casting table (1) to blow air for heat dissipation to the lower mold (2) and the upper mold (3) that are covered together.

2. The hub casting device according to claim 1, characterized in that Each water cooling mechanism (7) includes a refrigeration box (701), ice cubes (702) and a condensation pipe (703); where The refrigeration box (701) capable of refrigeration has ice cubes (702) placed inside. The condensation pipe (703) that is full of water inside and is serpentine is fixed on the inner wall of the refrigeration box (701) and abuts against the ice cubes (702). A water pump is fixedly arranged at the water outlet end of each condensation pipe (703) located outside the refrigeration box (701).

3. The hub casting device according to claim 2, characterized in that, A plurality of semiconductor refrigerators (12) with their refrigeration ends abutting against the outer walls are equally spaced and fixedly arranged on the outer walls of the two refrigeration boxes (701).

4. The hub casting device according to claim 1, characterized in that, The air cooling mechanism (8) includes: a rotating seat (801), a bracket (802) and a fan (803); where An upper part of the upper end of the casting table (1) protrudes upward to form a convex platform (13) for supporting the lower mold (2). The rotating seat (801) is horizontally and rotatably arranged on the convex platform (13). Along the circumferential direction of the upper end of the rotating seat (801), bracket (802) in an n-shaped structure are equally spaced and vertically fixedly arranged, and the free end of the bracket (802) extends vertically and partially between the rotating seat (801) and the semi-convex platform (13). Along the height direction of the vertical part of the bracket (802) close to the casting table (1), a plurality of fans (803) capable of blowing air towards the lower mold (2) and the upper mold (3) that are covered together are horizontally arranged at equal intervals.

5. The hub casting device according to claim 4, wherein, The device further includes a driving component (9) for driving the rotating seat (801) to rotate. The driving component (9) includes: a driving gear, a driven gear and a driving motor; where A driven gear is coaxially and fixedly arranged on the rotating base (801), and a driving motor is vertically and fixedly arranged at the upper end of the casting table (1) beside it. A driving gear meshed with the driven gear is coaxially and fixedly arranged on the output shaft of the driving motor.

6. The hub casting device according to claim 1, characterized in that, The device further includes an electric telescopic rod (11) for driving the lifting plate (4) to horizontally lift in the vertical direction. Among them, Support seats (10) in an inverted L shape are respectively vertically and fixedly arranged at the upper ends of the casting table (1) on both sides of the lower mold (2). An electric telescopic rod (11) is vertically and fixedly arranged at the top of each support seat (10), and the telescopic end of each electric telescopic rod (11) is fixed on the lifting plate (4).

7. The hub casting device according to claim 6, characterized in that, The electric telescopic rod (11) can be a cylinder, a hydraulic cylinder or a servo electric cylinder.

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