Flywheel precision casting device and casting method

Abstract

The invention discloses a flywheel precision casting device and method, and relates to the technical field of casting. A forming assembly is fixedly connected with the bottom of the inner side face of the lower die, a cooling assembly is fixedly connected to the bottom of the lower die, the side, away from the lower die, of the cooling assembly is fixedly connected with the top of a bottom plate, telescopic rods are fixedly connected to the four corners of an upper die, and the ends, away from the upper die, of the telescopic rods are fixedly connected with the top of the bottom plate. The outer side face of the material pipe is fixedly connected with the inner side face of the upper die, an inner cavity of the material pipe communicates with an inner cavity of the lower die, the upper part and the lower part of the exhaust assembly are slidably clamped, the half, away from the bottom plate, of the exhaust assembly is fixedly connected with the upper die, and the half, close to the bottom plate, of the exhaust assembly is fixedly connected with the forming assembly; and the cooling liquid circulates between the lower mold inner box and the cooling assembly, so that the flywheel is rapidly cooled, and subsequent demolding is facilitated.

Description

Technical Field

[0001] The invention relates to the technical field of casting, and in particular to a flywheel precision casting device and a casting method. Background Art

[0002] Flywheel precision manufacturing is a process of high-precision processing of flywheels, aiming to ensure that the flywheel has good dynamic balance, dimensional accuracy and surface quality. The manufacturing process usually uses advanced processing equipment and technology, such as CNC machine tools, precision casting, heat treatment, etc. Through precision manufacturing, the performance and reliability of the flywheel can be improved, and its service life can be extended. It is widely used in the fields of automobiles, machinery, aerospace, etc.

[0003] The workpiece needs to be cooled during casting. Rapid cooling can shape the product, prevent deformation, improve dimensional stability and surface quality, and also speed up production rhythm and improve production efficiency. Air cooling, water cooling and other methods are usually used for cooling. The flywheel surface is irregular and has protrusions and depressions. During cooling, it is impossible to ensure uniform cooling of the flywheel surface, which affects the processing quality. In addition, demolding is difficult after cooling, which affects the continuous processing efficiency. Therefore, we proposed a flywheel precision casting device and casting method. Summary of the invention

[0004] In order to solve the above technical problems, the present invention provides a flywheel precision casting device and a casting method, comprising:

[0005] A bottom plate, the bottom of which is fixedly connected with support legs, and the support legs are symmetrically arranged on the top of the bottom plate;

[0006] A casting mechanism, which has a cooling structure and is used for cooling and demoulding the flywheel after casting is completed, and the casting mechanism is fixedly connected to the top of the bottom plate;

[0007] Wherein, the casting mechanism comprises:

[0008] A lower mold, the inner recess of which is used to contain the metal liquid;

[0009] A molding component, the molding component has a plurality of protrusions and depressions, and is used for molding the depressions and protrusions on the flywheel surface, and the molding component is fixedly connected to the bottom of the inner side surface of the lower mold;

[0010] A cooling component, which has a water cooling structure and is used for rapid cooling of the flywheel before demoulding. The cooling component is fixedly connected to the bottom of the lower mold, and the side of the cooling component away from the lower mold is fixedly connected to the top of the bottom plate;

[0011] An upper mold, wherein four corners of the upper mold are fixedly connected with telescopic rods, and one end of the telescopic rod away from the upper mold is fixedly connected to the top of the bottom plate;

[0012] A material tube, wherein the material tube passes through the upper die, and the outer side surface of the material tube is fixedly connected to the inner side surface of the upper die, and the inner cavity of the material tube is connected to the inner cavity of the lower die;

[0013] An exhaust assembly, which has an upper and lower part, and is used to exhaust excess air in the mold, and the upper and lower parts of the exhaust assembly are slidably connected, the half of the exhaust assembly away from the bottom plate is fixedly connected to the upper mold, and the half of the exhaust assembly close to the bottom plate is fixedly connected to the molding assembly;

[0014] Before casting, the lower mold and the upper mold are closed, and the feeding mechanism is connected through a material pipe. The feeding structure injects molten metal liquid into the material pipe, and the metal liquid enters the recessed interior of the lower mold through the material pipe. The feeding is stopped after the metal liquid fills the lower mold. At this time, the metal liquid completely fills the gap between the lower mold and the molding component, thereby obtaining a flywheel of a predetermined shape. Before demolding, the cooling component is started, and the cooling component pumps the coolant inside it into the lower mold, indirectly contacting the uncooled flywheel. The coolant circulates between the lower mold and the cooling component, thereby quickly completing the cooling of the flywheel and facilitating subsequent demolding. When the coolant is filled into the lower mold, the air inside the lower mold is squeezed out by the coolant and discharged through the exhaust component, so that the coolant can completely fill the lower mold and the molding component to obtain a better cooling effect.

[0015] Furthermore, a plurality of the material pipes are arranged on a side of the upper die away from the lower die, and the plurality of the material pipes are evenly distributed along the circumference of the upper die. The material pipes are controlled by valves, and the plurality of the material pipes can be quickly filled with molten metal to improve the casting effect.

[0016] Furthermore, the molding assembly includes an outer template, the surface of the outer template is fixedly connected to the inner side of the lower mold, the inner side of the outer template is circular and is used for molding the outermost side of the flywheel, the bottom of the inner side of the lower mold is fixedly connected with a heat dissipation groove mold, and the heat dissipation groove mold is arranged along the circumference of the outer template, the heat dissipation groove mold is used for molding arc-shaped heat dissipation grooves, the bottom of the inner side of the lower mold is provided with an inner mold groove, the inner mold groove is used for molding the rim, and the inner side of the outer template is fixedly connected with a receiving groove mold, and the receiving groove mold is away from the inner side of the outer template One side is corrugated, and several accommodating groove molds are arranged along the circumference of the outer template. The accommodating groove mold is used for forming anti-slip tooth grooves. The bottom of the inner side surface of the lower mold is fixedly connected with a center circular hole mold, and the center circular hole mold is arranged at the center of the inner side surface of the outer template. The center circular hole mold is used for forming the center circular hole. The groove can accommodate ignition magnets, and the heat dissipation groove can increase the contact area between the flywheel and the air, so as to obtain better heat dissipation effect. The rim can have a larger mass and diameter. When the flywheel rotates, the inertia of the rim can help maintain stable operation of the system.

[0017] Furthermore, the outer template is hollow on one side near the lower template, the heat dissipation groove mold is hollow on one side near the lower template, the receiving groove mold is hollow on one side near the lower template, the center circular hole mold is hollow on one side near the lower template, the lower template is hollow, and the inner cavity of the lower template is connected with the inner cavities of the outer template, the heat dissipation groove mold, the receiving groove mold, and the center circular hole mold. The end of the center circular hole mold away from the lower template is connected with the outside world, and the coolant is filled into the lower template, and the air inside the lower template leaves through the inner cavity of the center circular hole mold, so that the coolant can completely fill the inner cavities of the outer template, the heat dissipation groove mold, the receiving groove mold, and the center circular hole mold, so that each surface on the flywheel can indirectly contact the coolant, thereby obtaining a better cooling effect, so that the flywheel can be demolded quickly without cooling the upper mold. When the upper mold is driven to rise, the flywheel can be demolded together to complete the removal of the flywheel casting without the need to manually remove the casting again, thereby improving the casting efficiency.

[0018] Furthermore, the exhaust assembly includes a block, which is fixedly connected to a side of the center circular hole mold away from the lower mold, and the outer side surface of the block is slidably connected with a fixed seat, and the fixed seat is fixedly connected to a side of the upper mold away from the lower mold, and the fixed seat is fixedly connected to an exhaust pipe on the side away from the upper mold, and the outer side surface of the exhaust pipe is slidably connected to the inner side surface of the block, and the exhaust pipe is bent away from the block at one end away from the upper mold, and the inner cavity of the exhaust pipe is connected to the inner cavity of the center circular hole mold. Air passes through the center circular hole mold, and the air enters the exhaust pipe and is finally discharged to the outside. The upper mold moves, driving the fixed seat and the exhaust pipe to move. The lifting of the upper mold can drive the exhaust pipe to be connected with the center circular hole mold. When the device is idle, clean water is injected into the exhaust pipe to form a water seal to prevent external impurities from entering the center circular hole mold and entering the cavity of the device through the exhaust pipe to avoid corrosion. When the air is completely discharged, a water seal is formed at the bent position of the exhaust pipe. At this time, the pressure on both sides of the water seal is equal, and the water seal is stationary to prevent external impurities from passing through the exhaust pipe.

[0019] Furthermore, a conical tube is fixedly connected to one end of the exhaust pipe away from the fixing seat, a mounting seat is provided at the bottom of the bend of the exhaust pipe, the mounting seat is fixedly connected to a side of the upper mold away from the lower mold, and the inner side surface of the mounting seat is fixedly connected to the outer side surface of the exhaust pipe. The setting of the conical tube can reduce the entry of impurities such as dust, and the setting of the mounting seat can stabilize the exhaust pipe, avoid vibration of the exhaust pipe when gas passes through, and avoid noise.

[0020] Furthermore, a dovetail groove is provided on the inner side surface of the clamping block, and a plurality of dovetail grooves are provided along the inner side surface of the clamping block. A limiting plate is provided inside the clamping block, and the surface of the limiting plate is slidably connected to the inner side surfaces of the plurality of dovetail grooves. A floating plug is fixedly connected to one side of the limiting plate close to the central circular hole mold. When the coolant is filled, the floating plug is first located inside the central circular hole mold under the action of its own gravity, and the coolant contacts the floating plug. The floating plug rises under the action of buoyancy. After it is completely filled, the floating plug blocks the top of the central circular hole mold to prevent the coolant from passing through. The coolant is ejected through the exhaust pipe to avoid coolant loss. The float rises and drives the limit plate to slide inside the dovetail groove to play a limiting role and ensure the smooth rise of the float. Before the float is completely blocked, part of the coolant enters the exhaust pipe to form a water seal inside the exhaust pipe to avoid the entry of impurities. The coolant is in indirect contact with the casting, and the coolant temperature gradually rises. The pressure at the bottom of the float gradually increases after being blocked, so that the float is always blocked to avoid coolant spraying. When the coolant cools, the pressure decreases, the float drops, and the water seal is sucked back, and then demoulding is carried out.

[0021] Furthermore, the cooling component includes an outer shell, which is arranged at the interval between the lower mold and the bottom plate, and the surface of the outer shell is fixedly connected to the side where the lower mold and the bottom plate are close to each other, both sides of the outer shell are fixedly connected with a tube body, and the sides of the two tube bodies away from each other are fixedly connected with a pump body, the side of the pump body away from the tube body is fixedly connected with a bent pipe, the side of the bent pipe away from the pump body is fixedly connected with a tube row, the side of the tube row away from the bent pipe extends to the inner cavity of the lower mold, and the surface of the tube row is fixedly connected to the inner side surface of the lower mold, and a filling pipe is fixedly connected to the bottom of the bottom plate, the inner cavity of the filling pipe is connected to the inner cavity of the outer shell, and the filling pipe is controlled by a valve, cleaning liquid is injected through the filling pipe, the pump body is started, and the pump body drives the coolant to flow, and the coolant passes through the outer shell, the tube body, the pump body, the bent pipe, the tube row, the inner cavity of the lower mold, another tube row, another bent pipe, another pump body, and another tube body in turn, and finally returns to the inside of the outer shell to achieve circulating cooling and gradually fill the inside of the lower mold.

[0022] Furthermore, an upper baffle is fixedly connected to the inner side surface of the shell, and the upper baffle is fixedly connected to a side of the lower mold close to the bottom plate, and a plurality of upper baffles are arranged inside the shell, and lower baffles are arranged at intervals between adjacent upper baffles, and the lower baffle is fixedly connected to the inner side surface of the shell, and the lower baffle is fixedly connected to a side of the bottom plate close to the shell, and both sides of the upper baffle and the lower baffle pass through the shell, and the surfaces of the upper baffle and the lower baffle located outside the shell are fixedly connected with cooling fins, and the cooling fins are arranged in a groove shape, and the heated coolant contacts the upper baffle and the lower baffle, and the heat is transferred to the upper baffle The cooling fins are grooved, and the area in contact with the air is larger, which can obtain a good cooling effect, further improving the cooling effect on the casting. When the coolant flows inside the shell, it flows between the upper baffle and the lower baffle. The coolant flows along a zigzag shape, and the flow gap of the coolant is smaller. The flow speed of the coolant increases, and the heat transfer of the coolant increases, so as to obtain a better cooling effect. The speed direction is constantly changing, so that the coolant entering the shell and the inside of the shell are evenly mixed, which can quickly reduce the temperature of the coolant that has just entered the shell.

[0023] A casting method for a flywheel precision casting device comprises the following steps:

[0024] Step 1: The mold is closed, the telescopic rod is retracted, and the upper mold is driven down, and the upper mold is slid and clamped to the top of the lower mold, and the upper mold and the lower mold are closed;

[0025] Step 2: injecting molten metal into the feeding pipe, which is connected to the feeding mechanism. The feeding mechanism injects the molten metal into the feeding pipe, and the molten metal enters the concave interior of the lower mold through the feeding pipe. When the molten metal fills the lower mold, the feeding is stopped. At this time, the molten metal completely fills the gap between the lower mold and the molding component to obtain a flywheel of a predetermined shape.

[0026] Step 3: Add cleaning liquid. Inject cleaning liquid through the filling pipe and start the pump body. The pump body drives the coolant to flow. The coolant passes through the outer shell, the tube body, the pump body, the elbow, the tube row, and the inner cavity of the lower mold in sequence, and gradually fills the lower mold. The coolant is filled into the lower mold. The coolant completely fills the inner cavity of the outer mold plate, the heat dissipation groove mold, the receiving groove mold, and the center circular hole mold. All surfaces on the flywheel are indirectly in contact with the coolant.

[0027] Step 4: exhaust the mold. The air inside the lower mold cavity passes through the center circular hole mold, and the air enters the exhaust pipe and is finally discharged to the outside. When the coolant is filled, the float is first located inside the center circular hole mold under the action of its own gravity. The coolant contacts the float, and the float rises under the action of buoyancy. The float rises, driving the limit plate to slide inside the dovetail groove, playing a limiting role. Before the float is completely blocked, part of the coolant enters the exhaust pipe, forming a water seal inside the exhaust pipe. After it is completely filled, the float blocks the top of the center circular hole mold.

[0028] Step 5, cooling and demoulding. The coolant passes through the outer shell, tube body, pump body, elbow, tube row, lower mold cavity, another tube row, another elbow, another pump body, and another tube body in turn, and finally returns to the inside of the outer shell to achieve circulating cooling. The heated coolant contacts the upper baffle and the lower baffle, and the heat is transferred to the upper baffle and the lower baffle, and finally transferred to the heat dissipation fins to achieve cooling of the coolant. After the flywheel is cooled, the telescopic rod is started again, and the telescopic rod is extended to drive the upper mold to rise. The upper mold is not cooled. When the upper mold is driven to rise, the flywheel is demoulded together to complete the removal of the flywheel casting.

[0029] The present invention has the beneficial effects:

[0030] 1. The present invention sets a casting mechanism, and the cooling component pumps the coolant inside into the lower mold, which is indirectly in contact with the uncooled flywheel. The coolant circulates between the lower mold and the cooling component, so as to quickly cool the flywheel and facilitate subsequent demolding. When the coolant is filled into the lower mold, the air inside the lower mold is squeezed out by the coolant and discharged through the exhaust component, so that the coolant can completely fill the lower mold and the molding component, thereby obtaining a better cooling effect.

[0031] 2. The present invention sets a molding component, and the coolant is filled into the lower mold. The air inside the lower mold leaves through the inner cavity of the center circular hole mold, so that the coolant can completely fill the inner cavity of the outer mold plate, the heat dissipation groove mold, the receiving groove mold, and the center circular hole mold, so that each surface on the flywheel can indirectly contact the coolant, thereby obtaining a better cooling effect, so that the flywheel can be quickly demolded, and the upper mold is not cooled. When the upper mold is driven to rise, the flywheel can be demolded together, and the flywheel casting is removed without manually removing the casting again, thereby improving the casting efficiency.

[0032] 3. The present invention provides an exhaust assembly. When the device is idle, clean water is injected into the exhaust pipe to form a water seal to prevent external impurities from entering the central circular hole mold and the cavity of the device through the exhaust pipe to prevent corrosion. When the air is completely exhausted, a water seal is formed at the bending position of the exhaust pipe. At this time, the pressures on both sides of the water seal are equal, and the water seal is stationary to prevent the passage of external impurities during cooling. When the coolant is filled, the float is first located inside the central circular hole mold under the action of its own gravity. The coolant contacts the float, and the float rises under the action of buoyancy. After it is completely filled, the float blocks the top of the central circular hole mold to prevent the coolant from spraying out through the exhaust pipe and causing the coolant loss. The float rises and drives the limit plate to slide inside the dovetail groove to play a limiting role to ensure the smooth rise of the float. Before the float is completely blocked, part of the coolant enters the exhaust pipe to form a water seal inside the exhaust pipe to prevent the entry of impurities. The coolant contacts the casting indirectly, and the coolant temperature gradually rises. After the float is blocked, the pressure at the bottom of the float gradually increases, so that the float is always blocked to prevent the coolant from spraying out.

[0033] 4. The present invention sets a cooling component, and the heat dissipation fins are grooved, with a larger area in contact with the air, which can obtain a good cooling effect and further improve the cooling effect on the casting. When the coolant flows inside the shell, it flows between the upper baffle and the lower baffle, and the coolant flows along a zigzag line. The flow gap of the coolant is smaller, the flow speed of the coolant is increased, and the heat transfer of the coolant is increased, thereby obtaining a better cooling effect. The speed direction is constantly changed, so that the coolant entering the shell and the inside of the shell are evenly mixed, which can quickly reduce the temperature of the coolant that has just entered the inside of the shell. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 It is a schematic diagram of the flywheel precision casting device of the present invention;

[0035] Figure 2 This is a schematic diagram of the internal structure of the lower mold of the present invention;

[0036] Figure 3 It is a schematic diagram of the structure of the molding assembly of the present invention;

[0037] Figure 4 It is a schematic diagram of the cross-sectional structure of the molding component of the present invention;

[0038] Figure 5 It is a schematic diagram of the cross-sectional structure of the lower mold of the present invention;

[0039] Figure 6 It is a schematic diagram of the cross-sectional structure of the upper mold of the present invention;

[0040] Figure 7 This is a schematic diagram of the floating plug structure of the present invention;

[0041] Figure 8This is a schematic diagram of the structure of the cooling component of the present invention;

[0042] Fig. 9 This is a schematic diagram of the cross-sectional structure of the cooling component of the present invention;

[0043] Fig.10 It is a flowchart of the present invention.

[0044] In the figure: 1. bottom plate; 2. supporting legs; 3. casting mechanism; 31. lower mold; 32. cooling component; 321. shell; 322. upper baffle; 323. lower baffle; 324. heat dissipation fin; 325. filling pipe; 326. pipe row; 327. elbow; 328. pump body; 329. pipe body; 33. upper mold; 34. telescopic rod; 35. material pipe; 36. exhaust component; 361. block; 362. fixing seat; 363. exhaust pipe; 364. cone pipe; 365. mounting seat; 366. dovetail groove; 367. limit plate; 368. floating plug; 39. molding component; 391. outer mold plate; 392. heat dissipation groove mold; 393. inner mold groove; 394. accommodating groove mold; 395. center circle hole mold. DETAILED DESCRIPTION

[0045] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. The embodiments of the present invention are provided for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described in order to better illustrate the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific uses.

[0046] Example 1, please refer to Figure 1-Figure 7 The present invention is a flywheel precision casting device and casting method, comprising:

[0047] A base plate 1, the bottom of the base plate 1 is fixedly connected with support legs 2, and the support legs 2 are symmetrically arranged on the top of the base plate 1;

[0048] A casting mechanism 3, which has a cooling structure and is used for cooling and demoulding the flywheel after casting. The casting mechanism 3 is fixedly connected to the top of the bottom plate 1;

[0049] Among them, the casting mechanism 3 includes:

[0050] A lower mold 31, wherein the lower mold 31 is concavely arranged inside and is used to contain the metal liquid;

[0051] A molding component 39, the molding component 39 has a plurality of protrusions and depressions, and is used for molding the depressions and protrusions on the flywheel surface. The molding component 39 is fixedly connected to the bottom of the inner side surface of the lower mold 31;

[0052] A cooling component 32, which has a water cooling structure and is used for rapid cooling of the flywheel before demoulding. The cooling component 32 is fixedly connected to the bottom of the lower mold 31, and the side of the cooling component 32 away from the lower mold 31 is fixedly connected to the top of the bottom plate 1;

[0053] The upper mold 33, the four corners of the upper mold 33 are fixedly connected with telescopic rods 34, and one end of the telescopic rod 34 away from the upper mold 33 is fixedly connected to the top of the bottom plate 1;

[0054] A material pipe 35, the material pipe 35 passes through the upper mold 33, and the outer side surface of the material pipe 35 is fixedly connected to the inner side surface of the upper mold 33, and the inner cavity of the material pipe 35 is connected to the inner cavity of the lower mold 31;

[0055] An exhaust assembly 36, which has an upper and lower part, and is used to exhaust excess air in the mold, and the upper and lower parts of the exhaust assembly 36 are slidably connected, and the half of the exhaust assembly 36 away from the bottom plate 1 is fixedly connected to the upper mold 33, and the half of the exhaust assembly 36 close to the bottom plate 1 is fixedly connected to the molding assembly 39;

[0056] Before casting, the lower mold 31 and the upper mold 33 are closed, and the feeding mechanism is connected through the material pipe 35. The feeding structure injects molten metal liquid into the material pipe 35, and the metal liquid enters the recessed interior of the lower mold 31 through the material pipe 35. The feeding is stopped after the metal liquid fills the lower mold 31. At this time, the metal liquid completely fills the gap between the lower mold 31 and the molding component 39, so as to obtain a flywheel of a predetermined shape. Before demolding, the cooling component 32 is started, and the cooling component 32 pumps the coolant inside into the lower mold 31, and indirectly contacts the uncooled flywheel. The coolant circulates between the lower mold 31 and the cooling component 32, so as to quickly complete the cooling of the flywheel and facilitate subsequent demolding. When the coolant is filled into the lower mold 31, the air inside the lower mold 31 is squeezed out by the coolant and discharged through the exhaust component 36, so that the coolant can completely fill the lower mold 31 and the molding component 39, so as to obtain a better cooling effect.

[0057] Several material pipes 35 are arranged on the side of the upper mold 33 away from the lower mold 31 , and the several material pipes 35 are evenly distributed along the circumference of the upper mold 33 . The material pipes 35 are controlled by valves, and the several material pipes 35 can be quickly filled with molten metal to improve the casting effect.

[0058] The molding assembly 39 includes an outer mold plate 391, the surface of the outer mold plate 391 is fixedly connected to the inner side surface of the lower mold 31, the inner side surface of the outer mold plate 391 is circular, and is used for molding the outermost side of the flywheel, and a heat dissipation groove mold 392 is fixedly connected to the bottom of the inner side surface of the lower mold 31, and a plurality of heat dissipation groove molds 392 are arranged along the circumference of the outer mold plate 391, and the heat dissipation groove mold 392 is used for molding an arc-shaped heat dissipation groove, and an inner mold groove 393 is provided at the bottom of the inner side surface of the lower mold 31, and the inner mold groove 393 is used for molding the wheel rim, and a receiving groove mold 394 is fixedly connected to the inner side surface of the outer mold plate 391, and the receiving groove mold 394 is away from the outer mold plate 39 One side of the inner side surface is corrugated, and a plurality of accommodating groove molds 394 are arranged along the circumference of the outer mold plate 391. The accommodating groove molds 394 are used for forming the anti-slip tooth grooves. A center circular hole mold 395 is fixedly connected to the bottom of the inner side surface of the lower mold 31, and the center circular hole mold 395 is arranged at the center of the inner side surface of the outer mold plate 391. The center circular hole mold 395 is used for forming the center circular hole. The groove can accommodate the ignition magnet. The heat dissipation groove can increase the contact area between the flywheel and the air, so as to obtain a better heat dissipation effect. The rim can have a larger mass and diameter. When the flywheel rotates, the inertia of the rim can help maintain the stable operation of the system.

[0059] The outer mold plate 391 is hollow on one side near the lower mold 31, the heat dissipation groove mold 392 is hollow on one side near the lower mold 31, the receiving groove mold 394 is hollow on one side near the lower mold 31, and the center circular hole mold 395 is hollow on one side near the lower mold 31. The lower mold 31 is hollow, and the inner cavity of the lower mold 31 is connected with the inner cavity of the outer mold plate 391, the heat dissipation groove mold 392, the receiving groove mold 394, and the center circular hole mold 395. The end of the center circular hole mold 395 away from the lower mold 31 is connected with the outside, and the coolant is filled into the lower mold 31. The air inside the mold 31 leaves through the inner cavity of the center circular hole mold 395, so that the coolant can completely fill the inner cavity of the outer mold plate 391, the heat dissipation groove mold 392, the receiving groove mold 394, and the center circular hole mold 395, so that each surface on the flywheel can indirectly contact the coolant, thereby obtaining a better cooling effect, so that the flywheel can be quickly demolded, and the upper mold 33 is not cooled. When the upper mold 33 is driven to rise, it can drive the flywheel to be demolded together, completing the removal of the flywheel casting without the need to manually remove the casting again, thereby improving the casting efficiency.

[0060] The exhaust assembly 36 includes a block 361, which is fixedly connected to the side of the center circle hole mold 395 away from the lower mold 31, and the outer side of the block 361 is slidably connected to a fixed seat 362, which is fixedly connected to the side of the upper mold 33 away from the lower mold 31, and the side of the fixed seat 362 away from the upper mold 33 is fixedly connected to an exhaust pipe 363, and the outer side of the exhaust pipe 363 is slidably connected to the inner side of the block 361, and the exhaust pipe 363 is bent at one end away from the block 361 away from the upper mold 33, and the inner cavity of the exhaust pipe 363 is connected to the inner cavity of the center circle hole mold 395, and air passes through the center circle Hole mold 395, air enters the exhaust pipe 363 and is finally discharged to the outside. The upper mold 33 moves, driving the fixed seat 362 and the exhaust pipe 363 to move. The lifting of the upper mold 33 can drive the exhaust pipe 363 to be connected with the center circular hole mold 395. When the device is idle, clean water is injected into the exhaust pipe 363 to form a water seal to prevent external impurities from entering the center circular hole mold 395 through the exhaust pipe 363 and entering the cavity of the device to avoid corrosion. When the air is completely discharged, a water seal is formed at the bending position of the exhaust pipe 363. At this time, the pressure on both sides of the water seal is equal, and the water seal is stationary to prevent the passage of external impurities during cooling.

[0061] One end of the exhaust pipe 363 away from the fixed seat 362 is fixedly connected to the cone tube 364, and a mounting seat 365 is provided at the bottom of the bend of the exhaust pipe 363. The mounting seat 365 is fixedly connected to the side of the upper mold 33 away from the lower mold 31, and the inner side surface of the mounting seat 365 is fixedly connected to the outer side surface of the exhaust pipe 363. The setting of the cone tube 364 can avoid and reduce the entry of impurities such as dust. The setting of the mounting seat 365 can stabilize the exhaust pipe 363, avoid vibration of the exhaust pipe 363 when gas passes through, and avoid noise.

[0062] The inner side surface of the block 361 is provided with a dovetail groove 366, and a plurality of dovetail grooves 366 are provided along the inner side surface of the block 361. A limit plate 367 is provided inside the block 361. The surface of the limit plate 367 is slidably connected to the inner side surfaces of the plurality of dovetail grooves 366. A float 368 is fixedly connected to the side of the limit plate 367 close to the center circular hole mold 395. When the coolant is filled, the float 368 is first located inside the center circular hole mold 395 under the action of its own gravity. The coolant contacts the float 368, and the float 368 rises under the action of buoyancy. After it is completely filled, the float 368 blocks the top of the center circular hole mold 395 to prevent the coolant from It is sprayed out through the exhaust pipe 363 to avoid loss of coolant. The float 368 rises, driving the limit plate 367 to slide inside the dovetail groove 366, playing a limiting role to ensure the smooth rise of the float 368. Before the float 368 is completely blocked, part of the coolant enters the exhaust pipe 363 to form a water seal inside the exhaust pipe 363 to avoid the entry of impurities. The coolant is in indirect contact with the casting, and the coolant temperature gradually rises. After the float 368 is blocked, the pressure at the bottom of the float 368 gradually increases, so that the float 368 is always blocked to avoid the coolant from spraying out. When the coolant cools, the pressure decreases, the float 368 drops, and the water seal is sucked back, and then demoulding is carried out.

[0063] Example 2, please refer to Figure 1-Figure 10 The cooling component 32 includes a shell 321, which is arranged at the interval between the lower mold 31 and the bottom plate 1, and the surface of the shell 321 is fixedly connected to the side where the lower mold 31 and the bottom plate 1 are close to each other, and the two sides of the shell 321 are fixedly connected to the tube body 329, and the two tube bodies 329 are fixedly connected to the pump body 328 on the side away from each other, and the pump body 328 is fixedly connected to the side away from the tube body 329. The side of the elbow 327 away from the pump body 328 is fixedly connected to the tube row 326, and the side of the tube row 326 away from the elbow 327 extends to the inner cavity of the lower mold 31, and the surface of the tube row 326 is close to the lower mold 31. The inner side of the bottom plate 1 is fixedly connected, and a filling pipe 325 is fixedly connected to the bottom of the bottom plate 1. The inner cavity of the filling pipe 325 is connected to the inner cavity of the outer shell 321, and the filling pipe 325 is controlled by a valve. The cleaning liquid is injected through the filling pipe 325, and the pump body 328 is started. The pump body 328 drives the coolant to flow. The coolant passes through the outer shell 321, the tube body 329, the pump body 328, the elbow 327, the tube row 326, the inner cavity of the lower mold 31, another tube row 326, another elbow 327, another pump body 328, and another tube body 329 in sequence, and finally returns to the inside of the outer shell 321 to achieve circulating cooling, and gradually fill the inside of the lower mold 31.

[0064] An upper baffle 322 is fixedly connected to the inner side surface of the shell 321, and the upper baffle 322 is fixedly connected to the side of the lower mold 31 close to the bottom plate 1. A plurality of upper baffles 322 are arranged inside the shell 321, and lower baffles 323 are arranged at the intervals between adjacent upper baffles 322. The lower baffle 323 is fixedly connected to the inner side surface of the shell 321, and the lower baffle 323 is fixedly connected to the side of the bottom plate 1 close to the shell 321. Both sides of the upper baffle 322 and the lower baffle 323 penetrate the shell 321, and the surfaces of the upper baffle 322 and the lower baffle 323 located outside the shell 321 are fixedly connected with heat dissipation fins 324, and the heat dissipation fins 324 are arranged in a groove shape, and the heated coolant contacts the upper baffle 322 and the lower baffle 323. The heat is transferred to the upper baffle plate 322 and the lower baffle plate 323, and finally to the heat dissipation fins 324, thereby achieving cooling of the coolant, and then better cooling of the casting. The heat dissipation fins 324 are grooved, and the area in contact with the air is larger, which can obtain a good cooling effect, and further improve the cooling effect on the casting. When the coolant flows inside the shell 321, it flows between the upper baffle plate 322 and the lower baffle plate 323. The coolant flows along a zigzag shape, and the flow gap of the coolant is smaller. The flow speed of the coolant increases, and the heat transfer of the coolant increases, thereby obtaining a better cooling effect. The speed direction is constantly changing, so that the coolant entering the shell 321 and the inside of the shell 321 are evenly mixed, which can quickly reduce the temperature of the coolant that has just entered the inside of the shell 321.

[0065] A casting method for a flywheel precision casting device comprises the following steps:

[0066] Step 1: The mold is closed. The telescopic rod 34 is retracted to drive the upper mold 33 to descend. The upper mold 33 is slidably connected to the top of the lower mold 31, and the upper mold 33 and the lower mold 31 are closed.

[0067] Step 2: injecting molten metal into the feeding tube 35, and the feeding structure injects the molten metal into the feeding tube 35. The molten metal enters the concave interior of the lower mold 31 through the feeding tube 35. When the molten metal fills the lower mold 31, the feeding is stopped. At this time, the molten metal completely fills the gap between the lower mold 31 and the molding component 39, and a flywheel of a predetermined shape is obtained.

[0068] Step 3, add cleaning liquid, inject cleaning liquid through the filling pipe 325, start the pump body 328, the pump body 328 drives the coolant to flow, the coolant passes through the shell 321, the tube body 329, the pump body 328, the elbow 327, the tube row 326, the inner cavity of the lower mold 31, and gradually fills the lower mold 31. The coolant is filled into the lower mold 31, and the coolant completely fills the inner cavity of the outer mold plate 391, the heat dissipation groove mold 392, the accommodating groove mold 394, and the center circular hole mold 395. All surfaces on the flywheel are indirectly in contact with the coolant;

[0069] Step 4: exhaust the mold. The air inside the inner cavity of the lower mold 31 passes through the central circular hole mold 395, and the air enters the exhaust pipe 363 and is finally discharged to the outside. When the coolant is filled, the float 368 is first located inside the central circular hole mold 395 under the action of its own gravity. The coolant contacts the float 368, and the float 368 rises under the action of buoyancy. The float 368 rises, driving the limit plate 367 to slide inside the dovetail groove 366, playing a limiting role. Before the float 368 is completely blocked, part of the coolant enters the exhaust pipe 363, forming a water seal inside the exhaust pipe 363. After it is completely filled, the float 368 blocks the top of the central circular hole mold 395.

[0070] Step five, cooling and demoulding. The coolant passes through the shell 321, the tube body 329, the pump body 328, the elbow 327, the tube row 326, the inner cavity of the lower mold 31, another tube row 326, another elbow 327, another pump body 328, and another tube body 329 in sequence, and finally returns to the inside of the shell 321 to achieve circulating cooling. The heated coolant contacts the upper baffle 322 and the lower baffle 323, and the heat is transferred to the upper baffle 322 and the lower baffle 323, and finally transferred to the heat dissipation fins 324 to achieve cooling of the coolant. After the flywheel is cooled, the telescopic rod 34 is started again, and the telescopic rod 34 is extended to drive the upper mold 33 to rise. The upper mold 33 is not cooled. When the upper mold 33 is driven to rise, the flywheel is demoulded together to complete the removal of the flywheel casting.

[0071] Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field and related fields without creative work should fall within the scope of protection of the present invention. The structures, devices and operating methods not specifically described and explained in the present invention are implemented according to the conventional means in the field unless otherwise specified and limited.

Claims

1. A flywheel precision casting device, characterized in that: include: A base plate (1), wherein the bottom of the base plate (1) is fixedly connected to a support leg (2), and the support leg (2) is symmetrically arranged on the top of the base plate (1); A casting mechanism (3), the casting mechanism (3) having a cooling structure, used for cooling and demoulding the flywheel after casting is completed, the casting mechanism (3) being fixedly connected to the top of the bottom plate (1); Wherein, the casting mechanism (3) comprises: A lower mold (31), the lower mold (31) having an inner concave configuration for containing liquid metal; A molding component (39), the molding component (39) having a plurality of protrusions and depressions, used for molding the depressions and protrusions on the flywheel surface, the molding component (39) being fixedly connected to the bottom of the inner side surface of the lower mold (31); A cooling component (32) having a water cooling structure and used for rapid cooling of the flywheel before demoulding, wherein the cooling component (32) is fixedly connected to the bottom of the lower mold (31), and a side of the cooling component (32) away from the lower mold (31) is fixedly connected to the top of the bottom plate (1); An upper mold (33), wherein four corners of the upper mold (33) are fixedly connected to telescopic rods (34), and one end of the telescopic rod (34) away from the upper mold (33) is fixedly connected to the top of the bottom plate (1); A material pipe (35), wherein the material pipe (35) passes through the upper mold (33), and the outer side surface of the material pipe (35) is fixedly connected to the inner side surface of the upper mold (33), and the inner cavity of the material pipe (35) is connected to the inner cavity of the lower mold (31); An exhaust component (36) has an upper and lower part, which is used to exhaust excess air in the mold, and the upper and lower parts of the exhaust component (36) are slidably connected, the half of the exhaust component (36) away from the bottom plate (1) is fixedly connected to the upper mold (33), and the half of the exhaust component (36) close to the bottom plate (1) is fixedly connected to the molding component (39).

2. A flywheel precision casting device according to claim 1, characterized in that: A plurality of material pipes (35) are arranged on a side of the upper mold (33) away from the lower mold (31), and the plurality of material pipes (35) are evenly distributed along the circumference of the upper mold (33). The material pipes (35) are controlled by valves.

3. A flywheel precision casting device according to claim 2, characterized in that: The molding assembly (39) comprises an outer mold plate (391), the surface of the outer mold plate (391) is fixedly connected to the inner side surface of the lower mold (31), the inner side surface of the outer mold plate (391) is circular and is used for molding the outermost side of the flywheel, a heat dissipation groove mold (392) is fixedly connected to the bottom of the inner side surface of the lower mold (31), and a plurality of heat dissipation groove molds (392) are arranged along the circumference of the outer mold plate (391), and the heat dissipation groove molds (392) are used for molding arc-shaped heat dissipation grooves, and an inner mold groove (393) is provided at the bottom of the inner side surface of the lower mold (31), and the inner mold groove (393) is used for molding arc-shaped heat dissipation grooves. For the molding of the wheel rim, the inner side surface of the outer template (391) is fixedly connected with a receiving groove mold (394), and the side of the receiving groove mold (394) away from the inner side surface of the outer template (391) is corrugated. A plurality of receiving groove molds (394) are arranged along the circumference of the outer template (391), and the receiving groove molds (394) are used for molding the anti-slip tooth groove. The bottom of the inner side surface of the lower mold (31) is fixedly connected with a center circular hole mold (395), and the center circular hole mold (395) is arranged at the center of the inner side surface of the outer template (391), and the center circular hole mold (395) is used for molding the center circular hole.

4. A flywheel precision casting device according to claim 3, characterized in that: The outer mold (391) is hollow on one side close to the lower mold (31), the heat dissipation groove mold (392) is hollow on one side close to the lower mold (31), the receiving groove mold (394) is hollow on one side close to the lower mold (31), and the center circular hole mold (395) is hollow on one side close to the lower mold (31). The lower mold (31) is hollow, and the inner cavity of the lower mold (31) is connected to the inner cavities of the outer mold (391), the heat dissipation groove mold (392), the receiving groove mold (394), and the center circular hole mold (395), and the end of the center circular hole mold (395) away from the lower mold (31) is connected to the outside.

5. A flywheel precision casting device according to claim 4, characterized in that: The exhaust assembly (36) comprises a clamping block (361), wherein the clamping block (361) is fixedly connected to a side of the central circular hole mold (395) away from the lower mold (31), the outer side surface of the clamping block (361) is slidably connected to a fixing seat (362), the fixing seat (362) is fixedly connected to a side of the upper mold (33) away from the lower mold (31), the side of the fixing seat (362) away from the upper mold (33) is fixedly connected to an exhaust pipe (363), and the outer side surface of the exhaust pipe (363) is slidably connected to the inner side surface of the clamping block (361), the end of the exhaust pipe (363) away from the clamping block (361) away from the upper mold (33) is bent, and the inner cavity of the exhaust pipe (363) is connected to the inner cavity of the central circular hole mold (395).

6. A flywheel precision casting device according to claim 5, characterized in that: One end of the exhaust pipe (363) away from the fixing seat (362) is fixedly connected to a conical pipe (364); a mounting seat (365) is provided at the bottom of the bending portion of the exhaust pipe (363); the mounting seat (365) is fixedly connected to a side of the upper mold (33) away from the lower mold (31); and the inner side surface of the mounting seat (365) is fixedly connected to the outer side surface of the exhaust pipe (363).

7. A flywheel precision casting device according to claim 6, characterized in that: The inner side surface of the clamping block (361) is provided with a dovetail groove (366), and a plurality of dovetail grooves (366) are provided along the inner side surface of the clamping block (361). A limiting plate (367) is provided inside the clamping block (361), and the surface of the limiting plate (367) is slidably connected to the inner side surfaces of the plurality of dovetail grooves (366). A floating plug (368) is fixedly connected to one side of the limiting plate (367) close to the central circular hole mold (395).

8. A flywheel precision casting device according to claim 7, characterized in that: The cooling component (32) comprises a shell (321), the shell (321) being arranged at the interval between the lower mold (31) and the bottom plate (1), and the surface of the shell (321) being fixedly connected to the side of the lower mold (31) and the bottom plate (1) close to each other, the two sides of the shell (321) being fixedly connected to a tube body (329), the two sides of the tube bodies (329) being away from each other being fixedly connected to a pump body (328), and the side of the pump body (328) being away from the tube body (329) being fixedly connected to A curved pipe (327), a side of the curved pipe (327) away from the pump body (328) is fixedly connected to a pipe row (326), a side of the pipe row (326) away from the curved pipe (327) extends to the inner cavity of the lower mold (31), and the surface of the pipe row (326) is fixedly connected to the inner side surface of the lower mold (31), and a filling pipe (325) is fixedly connected to the bottom of the base plate (1), the inner cavity of the filling pipe (325) is communicated with the inner cavity of the outer shell (321), and the filling pipe (325) is controlled by a valve.

9. A flywheel precision casting device according to claim 8, characterized in that: An upper baffle (322) is fixedly connected to the inner side surface of the shell (321), and the upper baffle (322) is fixedly connected to a side of the lower mold (31) close to the bottom plate (1). A plurality of upper baffles (322) are arranged inside the shell (321), and lower baffles (323) are arranged at intervals between adjacent upper baffles (322). The lower baffle (323) is fixedly connected to the inner side surface of the shell (321), and the lower baffle (323) is fixedly connected to a side of the bottom plate (1) close to the shell (321), and both sides of the upper baffle (322) and the lower baffle (323) pass through the shell (321), and the surfaces of the upper baffle (322) and the lower baffle (323) located outside the shell (321) are fixedly connected to heat dissipation fins (324), and the heat dissipation fins (324) are arranged in a groove shape.

10. A casting method for a flywheel precision casting device according to claim 9, characterized in that: The following steps are involved: Step 1: mold closing, the telescopic rod (34) contracts, driving the upper mold (33) to descend, the upper mold (33) slides and snaps onto the top of the lower mold (31), and the upper mold (33) and the lower mold (31) complete the mold closing; Step 2: injecting molten metal. The feeding mechanism is connected to the feeding pipe (35). The feeding mechanism injects molten metal into the feeding pipe (35). The molten metal enters the concave interior of the lower mold (31) through the feeding pipe (35). The feeding is stopped after the molten metal fills the lower mold (31). At this time, the molten metal completely fills the gap between the lower mold (31) and the molding component (39), and a flywheel of a predetermined shape is obtained. Step 3, adding cleaning liquid, injecting cleaning liquid through the filling pipe (325), starting the pump body (328), the pump body (328) drives the cooling liquid to flow, and the cooling liquid passes through the outer shell (321), the tube body (329), the pump body (328), the bent pipe (327), the tube row (326), and the inner cavity of the lower mold (31) in sequence, and gradually fills the lower mold (31). The cooling liquid is filled into the lower mold (31), and the cooling liquid completely fills the inner cavities of the outer mold plate (391), the heat dissipation groove mold (392), the receiving groove mold (394), and the center circular hole mold (395), and each surface on the flywheel is indirectly in contact with the cooling liquid; Step 4, the mold is vented. The air inside the inner cavity of the lower mold (31) passes through the central circular hole mold (395), and the air enters the exhaust pipe (363) and is finally discharged to the outside. When the coolant is filled, the float (368) is first located inside the central circular hole mold (395) under the action of its own gravity. The coolant contacts the float (368), and the float (368) rises under the action of buoyancy. The float (368) rises, driving the limit plate (367) to slide inside the dovetail groove (366), playing a limiting role. Before the float (368) is completely blocked, part of the coolant enters the exhaust pipe (363), forming a water seal inside the exhaust pipe (363). After it is completely filled, the float (368) blocks the top of the central circular hole mold (395); Step 5, cooling and demoulding. The coolant passes through the shell (321), the tube body (329), the pump body (328), the elbow (327), the tube row (326), the inner cavity of the lower mold (31), another tube row (326), another elbow (327), another pump body (328), and another tube body (329) in sequence, and finally returns to the inside of the shell (321) to achieve circulating cooling. The heated coolant contacts the upper baffle (322) and the lower baffle (323), and the heat is transferred to the upper baffle (322) and the lower baffle (323), and finally transferred to the heat dissipation fins (324) to achieve cooling of the coolant. After the flywheel is cooled, the telescopic rod (34) is started again, and the telescopic rod (34) is extended to drive the upper mold (33) to rise. The upper mold (33) is not cooled. When the upper mold (33) is driven to rise, the flywheel is demoulded together to complete the removal of the flywheel casting.

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