CN111001783A - Novel multi-section cooling device and cooling method for aluminum alloy hub casting mold - Google Patents
Novel multi-section cooling device and cooling method for aluminum alloy hub casting mold Download PDFInfo
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- CN111001783A CN111001783A CN201911163883.7A CN201911163883A CN111001783A CN 111001783 A CN111001783 A CN 111001783A CN 201911163883 A CN201911163883 A CN 201911163883A CN 111001783 A CN111001783 A CN 111001783A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D17/00—Pressure die casting or injection die casting, i.e. casting in which the metal is forced into a mould under high pressure
- B22D17/20—Accessories: Details
- B22D17/22—Dies; Die plates; Die supports; Cooling equipment for dies; Accessories for loosening and ejecting castings from dies
- B22D17/2218—Cooling or heating equipment for dies
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D17/00—Pressure die casting or injection die casting, i.e. casting in which the metal is forced into a mould under high pressure
- B22D17/20—Accessories: Details
- B22D17/32—Controlling equipment
Abstract
The invention discloses a multi-section cooling device of a novel aluminum alloy wheel hub casting die, which comprises a water tank, wherein a placing groove is arranged in the middle of the water tank, a base is arranged above the placing groove, one side of the base is fixedly connected with one side of a lower die, the lower die is connected with the placing groove through a moving device, an upper die is arranged above the lower die, air outlet holes are formed in two sides of the upper die, one side of each air outlet hole is communicated with an air outlet pipe, a lifting plate is arranged on one side, away from the lower die, of the upper die, limiting devices are arranged on two sides of the lifting plate, and a hydraulic rod is fixedly arranged in the middle of one side, away from the upper die, of the lifting plate. The cooling device has the advantages that the quality of the wheel hub can be guaranteed while the wheel hub after die-casting forming is cooled, the service life is greatly prolonged, the radiating efficiency is greatly improved in the cooling process, the forming speed is improved, the cooling device is simple in structure, and the cooling device is convenient to operate and use.
Description
Technical Field
The invention relates to the field of aluminum alloy hub casting, in particular to a multi-section cooling device and a cooling method of a novel aluminum alloy hub casting mold.
Background
The automobile hub is an important part of an automobile, is used as a main bearing part of a running part of the whole automobile, and has great relation with the running performance, riding comfort and safety of the automobile. The aluminum alloy hub has light weight, energy conservation and consumption reduction; the driving performance is improved, and the driving comfort is strong; the heat dissipation performance is good, the appearance is attractive, and the steel hub is being gradually replaced. At present, the production method of the aluminum alloy wheel hub mainly comprises a casting method, a forging method, a spinning method and the like, wherein the casting method is the most common method for producing the aluminum alloy wheel hub, and the technological method comprises gravity casting, low-pressure casting, extrusion casting and the like. The performance of the hub of the casting vehicle depends on the material cost saving, the solid solution aging and the die cooling process. The cooling mode of the mold determines the growth mode of the structure crystal grains after the hub is cast, and further determines the mechanical performance of the hub.
At present, in the prior art, the cooling of a hub mould has air cooling, water cooling and iron cooling modes, the cooling modes adopt the cooling mode combining local water cooling, air cooling or water air cooling, the cooling modes still cannot achieve the best cooling effect of a cast hub part, and the core mould riser and a chassis are difficult to demould after being formed, so that the quality of a hub is influenced; the hub has the problems that the mechanical performance of the hub is influenced due to uneven growth of internal tissues caused by insufficient cooling. In addition, part of the water-cooling disc is not tightly attached to the mold, the water-cooling disc deforms, so that the cooling efficiency is reduced, the cooling effect can be achieved only by prolonging the cooling time, the water consumption is very large, the cooling time is long, and the efficiency is not high; because of the structural characteristics of the wheel hub, a structure exists near the central part of the wheel hub, so that larger heat exists, which may cause uneven heat dissipation of each part of the wheel hub, thereby causing thermal stress, and possibly causing lack of wheel hub quality, and special cooling is also needed in order to ensure the integral uniformity and integral stability of cooling of the wheel hub, but in the prior art, for example, chinese patent CN204867314U discloses a wheel hub casting mold, which comprises an upper mold plate and a lower mold plate, a side mold plate is clamped between the upper mold plate and the lower mold plate, and a casting cavity is formed among the upper mold plate, the lower mold plate and the side mold plate; a wheel core die is arranged in the casting cavity and fixedly connected with the upper template and the lower template through screws; a spoke mold is arranged on the side surface of the wheel core mold, and one end of the spoke mold, which is far away from the wheel core mold, is also fixedly connected with the upper template and the lower template through screws; a rim casting cavity is formed among the upper template, the lower template, the side templates and the spoke mold; a feed inlet is formed at the joint of the wheel core die and the lower template; the cooling liquid is only put into the cavity formed by the side die plates when the hub is cooled, the rim part is uniformly cooled, and other parts such as the wheel core die 5 are provided with cooling holes and cooled by an air cooling mode.
Finally, in the existing hub casting mold, most of the cooling is to cool the upper mold and the lower mold, but the cooling effect is not considered and checked, and if the cooling effect is blocked, the cooling is not uniform and fails, so that the hub casting is unqualified.
In order to solve the above problems, a novel multi-stage cooling device and a novel cooling method for an aluminum alloy hub casting mold are needed to solve the problems.
An effective solution to the problems in the related art has not been proposed yet.
Disclosure of Invention
Aiming at the problems in the related art, the invention provides a multi-section cooling device of a novel aluminum alloy hub casting mold, which aims to overcome the technical problems in the prior related art.
The technical scheme of the invention is realized as follows:
the utility model provides a novel multistage cooling device of aluminum alloy wheel hub casting mould, includes the water tank, the centre of water tank is equipped with the standing groove, the top of standing groove is equipped with the base, one side of base and one side fixed connection of bed die, the bed die with connect through the mobile device between the standing groove, the top of bed die is equipped with the mould.
Furthermore, both sides of the upper die are provided with air outlet holes, one side of each air outlet hole is communicated with an air outlet pipe, one side of the upper die, which is far away from the lower die, is provided with a lifting plate, both sides of the lifting plate are provided with limiting devices, a hydraulic rod is fixedly arranged in the middle of one side of the lifting plate, which is far away from the upper die, one end of the hydraulic rod, which is far away from the lifting plate, is connected with the output end of a hydraulic cylinder, the hydraulic cylinder is fixed on one side of the fixed plate, the fixed plate is fixedly connected with the limiting devices, a die-casting cavity is arranged in the middle of the lower die, cooling devices are arranged around the die-casting cavity, each cooling device comprises a first cavity, the first cavity is arranged at the inner side of the bottom of the lower die, a second cavity is arranged inside the periphery of the first cavity, a water outlet is arranged in the, the end of the first hose, which is far away from the water outlet, sequentially penetrates through the base and the water tank and extends towards the inside of the water tank, a plurality of trapezoidal check blocks are fixedly arranged on two sides of the water outlet in the first cavity, one side of each trapezoidal check block, which is far away from the water outlet, is arranged on the side wall of the first cavity and is provided with a water inlet pipe in a penetrating manner, a branch pipe is arranged on the water inlet pipe, one end of each branch pipe, which is far away from the water inlet pipe, is communicated with the second cavity, a partition board is fixedly arranged on one side of each second cavity, one end of each partition board is fixedly connected with the bottom of the corresponding second cavity, the bottom of one side of each second cavity, which is far away from the corresponding branch pipe, is provided with a second hose, and one end of each second hose, which is far away from the corresponding, one end, far away from the branch pipe, of the water inlet pipe is connected with the output end of the water pump, a third hose is arranged at the input end of the water pump, one end, far away from the water pump, of the third hose penetrates through the base and the water tank and extends towards the inside of the water tank, impacting devices are arranged on two sides of the lower die, and a stirring and heat-radiating device is arranged inside the water tank;
the moving device comprises a rack plate, one side of the rack plate is fixedly connected with the base, two sides of the rack plate are respectively provided with a sliding block, the slide block is arranged in the sliding chute, two sides of the sliding chute are fixedly connected with the placing groove through the supporting rod, an arc-shaped gear is arranged at one end of the rack plate, which is far away from the base, the arc-shaped gear is meshed with the rack plate, a fixed rod is fixedly arranged on one side of the arc gear, a movable shaft is arranged at the joint of the fixed rod and the arc gear, the movable shaft is fixedly connected with a cross bar, two ends of the cross bar are respectively fixedly connected with the supporting rods, a cylindrical pin is fixedly arranged on one side of the fixed rod, which is far away from the arc-shaped gear, the cylindrical pin is arranged inside the arc-shaped groove, the arc-shaped groove is formed in the side wall of the cylinder, the cylinder is arranged between the support rods, and one end of the cylinder is connected with the output end of the motor;
stop device is including fixed slide bar, the one end of fixed slide bar pass through the fixed block with one side fixed connection of bed die, the cover is equipped with the sleeve on the fixed slide bar, telescopic one side with lifter plate fixed connection, the fixed plate with the one end fixed connection of fixed slide bar.
The impact device comprises impact rods, the impact rods are fixedly arranged on two sides of the lower die, impact balls are fixedly arranged at one ends of the impact rods, which are far away from the lower die, impact plates are arranged at one sides of the impact balls, which are far away from the impact rods, and one ends of the impact plates are fixedly connected with the side walls of the lower die through connecting blocks;
the stirring heat dissipation device comprises a rotating shaft, wherein two ends of the rotating shaft are connected with the inner wall of the water tank through bearing seats, and a plurality of stirring blades are fixedly arranged on the rotating shaft.
Furthermore, the two sides of the sleeve are positioned on the fixed sliding rod and are both sleeved with damping springs.
Furthermore, one side of the water tank is provided with a water inlet, one side of the bottom of the water tank is provided with a drain pipe, one end of the drain pipe is communicated with the water tank, and the drain pipe is provided with a control valve.
Further, be equipped with a plurality of louvres on the lateral wall of water tank, the water tank is kept away from one side of standing groove is fixed and is equipped with the supporting leg, the supporting leg is kept away from one side of water tank is fixed and is equipped with the antiskid ribbed tile, the both sides of base are all fixed and are equipped with the rack, the water pump is fixed in one side of rack.
According to another aspect of the invention, a novel multistage cooling method for an aluminum alloy hub casting mold is provided, and the dispersing method is used for a multistage cooling device of the casting mold.
The multi-section cooling method of the novel aluminum alloy hub casting mold comprises the following steps:
casting the qualified molten aluminum into a steel mould at the temperature of 250-350 ℃;
opening a bottom die cooling system, and continuously cooling for 10-15 s;
automatically opening the cooling system of the front rim of the upper die;
after all the processes are cooled in place, the alarm system automatically alarms;
and (5) demolding is realized.
In another aspect, the present application provides a cooling water supply and management system for an aluminum alloy hub casting mold, the cooling water supply and management system comprising:
the temperature sensor and the water pressure sensor are respectively arranged at a first hose, a second hose, a third hose, a water inlet pipe and a water outlet pipe on the lower die, the temperature sensor and the air pressure sensor are arranged at the air outlet pipe, the temperature sensor is used for detecting the temperature of the current pipe passing through the die in real time, the water pressure sensor is used for detecting the water pressure of the current pipe passing through the die in real time, and the water pressure sensor is used for detecting the air pressure of the air outlet pipe;
the upper die of the lower die is separately connected with a cooling circulating water pump and used for supplying cooling water;
the cooling water control valve is separately arranged at the position of a cooling water inlet pipe on the lower die and is used for controlling the supply of cooling water;
the upper computer is connected with each circulating water pump in a control mode, and meanwhile, the upper computer is also connected with each temperature sensor and each water pressure sensor.
Further, still include alarm module, the host computer possesses data analysis function, and when finding out that at least one in temperature sensor or water pressure sensor or the baroceptor detects the temperature or the pressure of cooling water and air and appears unusually, the host computer control alarm module reports to the police.
Furthermore, the upper computer controls the water inflow of the cooling water control valve or the pump water pressure of the pump according to a preset cooling temperature instruction, and simultaneously adjusts the pump water pressure of the pump in real time according to the real-time temperature detected by the temperature sensor.
In another aspect, the present application provides a multi-stage cooling method for a cooling water supply and management system of an aluminum alloy hub casting mold, comprising the steps of:
a. according to the usual cooling experience, setting a cooling time and a cooling temperature instruction required by each of the upper die and the lower die on an upper computer in advance;
b. connecting the cooling water supply and management system to the casting mold, and casting the qualified molten aluminum into a steel mold at the temperature of 250-350 ℃; starting an upper computer, and controlling a cooling water supply and management system to carry out cooling work by the upper computer;
c. the temperature sensor detects the temperature of the cooling water passing through the die, and when the temperature is found to be abnormal within a certain time, the upper computer determines that the cooling system is abnormal and gives an alarm;
d. the water pressure sensor detects the pressure of the cooling water passing through the die, and when the water pressure is found to be abnormal within a certain time, the upper computer determines that the cooling system is abnormal and gives an alarm;
e. and when the alarm condition is not found, the upper computer installs a preset instruction and finishes the cooling work.
Furthermore, the temperature sensor combines the requirement of cooling uniformity according to the detected temperature, and the upper computer reasonably adjusts the inlet and outlet speed of the cooling water so as to accurately control cooling.
The invention has the beneficial effects that:
(1) the cooling device has the advantages that the quality of the wheel hub can be guaranteed when the wheel hub after die-casting forming is cooled, the service life is greatly prolonged, the radiating efficiency is greatly improved in the cooling process, the forming speed is improved, the cooling device is simple in structure, and the cooling device is convenient to operate and use.
(2) The aluminium solution that can be to the die-casting in-process vibrates, makes the die-casting process reduce the remaining of bubble, vibrates produced bubble simultaneously and will discharge through the outlet duct of last mould one side to can increase the firm of wheel hub compaction, great improvement the quality, the life-span that can increase the use simultaneously.
(3) The multi-section cooling method of the aluminum alloy hub casting mould has simple steps, is practical and convenient, can quickly reduce the temperature field of the riser head part in each section of mould, and can be integrally cooled to the internal structure of the hub material and refined, thereby effectively improving the mechanical performance of the hub; meanwhile, the service life of the die is prolonged, and the product percent of pass is improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
FIG. 1 is a schematic structural diagram of a multi-stage cooling device of an aluminum alloy hub casting mold according to an embodiment of the invention;
FIG. 2 is a sectional view of a multi-segment cooling arrangement of an aluminum alloy hub casting mold according to an embodiment of the present invention;
FIG. 3 is an enlarged view at A in FIG. 2;
FIG. 4 is a schematic structural diagram of a cooling device in a lower die of a multi-stage cooling device of an aluminum alloy hub casting die according to an embodiment of the invention;
FIG. 5 is a schematic structural diagram of a moving device in a multi-stage cooling device of an aluminum alloy hub casting mold according to an embodiment of the invention;
FIG. 6 is a schematic structural diagram of a stirring heat sink in a multi-stage cooling device of an aluminum alloy hub casting mold according to an embodiment of the invention;
FIG. 7 is a flow chart of a multi-stage cooling method for a novel aluminum alloy hub casting mold according to an embodiment of the invention;
FIG. 8 is a flow chart of a multi-stage cooling method of a cooling water supply and management system of an aluminum alloy hub casting mold according to an embodiment of the invention.
In the figure:
1. a water tank; 2. a placement groove; 3. a lower die; 4. a mobile device; 5. an upper die; 6. an air outlet pipe; 7. a lifting plate; 8. a hydraulic lever; 9. a hydraulic cylinder; 10. a fixing plate; 11. a die casting cavity; 12. a first cavity; 13. a second cavity; 14. a water outlet; 15. a first hose; 16. a water inlet pipe; 17. a branch pipe; 18. a separator plate; 19. a second hose; 20. a water pump; 21. a third hose; 22. a rack plate; 23. a slider; 24. a chute; 25. a support bar; 26. fixing the rod; 27. a movable shaft; 28. a cross bar; 29. a cylindrical pin; 30. an arc-shaped slot; 31. a cylinder; 32. a motor; 33. an arc gear; 34. fixing the sliding rod; 35. a sleeve; 36. a damping spring; 37. a striker bar; 38. striking a ball; 39. an impact plate; 40. a water inlet; 41. a drain pipe; 42. a control valve; 43. a rotating shaft; 44. a bearing seat; 45. stirring blades; 46. heat dissipation holes; 47. supporting legs; 48. an anti-skid plate; 49. placing a rack; 50. a base; 51. trapezoidal dog.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments that can be derived by one of ordinary skill in the art from the embodiments given herein are intended to be within the scope of the present invention.
According to the embodiment of the invention, a multi-section cooling device of a novel aluminum alloy hub casting mold is provided.
As shown in fig. 1-6, the multistage cooling device for the novel aluminum alloy wheel hub casting mold according to the embodiment of the invention comprises a water tank 1, a placing groove 2 is arranged in the middle of the water tank 1, a base 50 is arranged above the placing groove 2, one side of the base 50 is fixedly connected with one side of a lower mold 3, the lower mold 3 is connected with the placing groove 2 through a moving device 4, an upper mold 5 is arranged above the lower mold 3, air outlet holes are arranged on both sides of the upper mold 5, one side of the air outlet holes is communicated with an air outlet pipe 6, a lifting plate 7 is arranged on one side of the upper mold 5 away from the lower mold 3, limiting devices are arranged on both sides of the lifting plate 7, a hydraulic rod 8 is fixedly arranged in the middle of one side of the lifting plate 7 away from the upper mold 5, one end of the hydraulic rod 8 away from the lifting plate 7 is connected with an output end of a hydraulic cylinder 9, the hydraulic cylinder 9 is fixed on one side of the fixed plate 10, the fixed plate 10 is fixedly connected with a limiting device, a die casting cavity 11 is arranged in the middle of the lower die 3, a cooling device is arranged around the die casting cavity 11, the cooling device comprises a first cavity 12, the first cavity 12 is arranged on the inner side of the bottom of the lower die 3, a second cavity 13 is arranged in the periphery of the first cavity 12, a water outlet 14 is arranged in the middle of the second cavity 13, one end of the water outlet 14 is communicated with a first hose 15, one end of the first hose 15 far away from the water outlet 14 sequentially penetrates through the base 50 and the water tank 1 and extends into the water tank 1, a plurality of trapezoidal stoppers 51 are fixedly arranged on two sides of the water outlet 14 in the first cavity 12, one side of the trapezoidal stopper 51 far away from the water outlet 14 is arranged on the side wall of the first cavity 12 and penetrates through a water inlet pipe 16, be equipped with branch pipe 17 on the inlet tube 16, the one end that inlet tube 16 was kept away from to branch pipe 17 with second cavity 13 is linked together, second cavity 13 is located the fixed division board 18 that is equipped with in one side of branch pipe 17, the one end of division board 18 with the bottom fixed connection of second cavity 13, one side bottom that branch pipe 17 was kept away from to second cavity 13 is equipped with second hose 19, the one end that second cavity 13 was kept away from to second hose 19 runs through base 50 with water tank 1 in proper order, and, extend to the inside of water tank 1, the one end that inlet tube 16 was kept away from branch pipe 17 is connected with the output of water pump 20, the input of water pump 20 is equipped with third hose 21, the one end that water pump 20 was kept away from to third hose 21 runs through base 50 with water tank 1, and to the inside extension of water tank 1, the both sides of bed die 3 are equipped with percussion device, a stirring heat dissipation device is arranged inside the water tank 1;
the moving device comprises a rack plate 22, one side of the rack plate 22 is fixedly connected with the base 50, sliding blocks 23 are arranged on two sides of the rack plate 22, the sliding blocks 23 are arranged inside a sliding groove 24, two sides of the sliding groove 24 are fixedly connected with the placing groove 2 through supporting rods 25, an arc-shaped gear 33 is arranged at one end, far away from the base 50, of the rack plate 22, the arc-shaped gear 33 is meshed with the rack plate 22, a fixing rod 26 is fixedly arranged on one side of the arc-shaped gear 33, a movable shaft 27 is arranged at the joint of the fixing rod 26 and the arc-shaped gear 33, the movable shaft 27 is fixedly connected with a cross rod 28, two ends of the cross rod 28 are respectively fixedly connected with the supporting rods 25, a cylindrical moving pin 29 is fixedly arranged on one side, far away from the arc-shaped gear 33, the cylindrical pin 29 is arranged inside an arc-shaped groove 30, and the arc-shaped groove 30 is arranged on the, the cylinder 31 is arranged between the support rods 25, and one end of the cylinder 31 is connected with the output end of the motor 32;
stop device is including fixed slide bar 34, the one end of fixed slide bar 34 pass through the fixed block with one side fixed connection of bed die 3, the cover is equipped with sleeve 35 on the fixed slide bar 34, one side of sleeve 35 with lifter plate 7 fixed connection, fixed plate 10 with the one end fixed connection of fixed slide bar 34.
The impact device comprises impact rods 37, the impact rods 37 are fixedly arranged on two sides of the lower die 3, impact balls 38 are fixedly arranged at one ends of the impact rods 37 far away from the lower die 3, impact plates 39 are arranged at one sides of the impact balls 38 far away from the impact rods 37, and one ends of the impact plates 39 are fixedly connected with the side walls of the lower die 3 through connecting blocks;
stirring heat abstractor includes pivot 43, the both ends of pivot 43 all through bearing frame 44 with the interior wall connection of water tank 1, the fixed a plurality of stirring leaves 45 that are equipped with on the pivot 43.
In addition, in one embodiment, for the sleeve 35, a damping spring 36 is sleeved on both sides of the sleeve 35 on the fixed slide bar 34.
In addition, in one embodiment, for the water tank 1, a water inlet 40 is arranged on one side of the water tank 1, a water outlet pipe 41 is arranged on one side of the bottom of the water tank 1, one end of the water outlet pipe 41 is communicated with the water tank 1, and a control valve 42 is arranged on the water outlet pipe 41.
In addition, in an embodiment, a plurality of heat dissipation holes 46 are formed in the side wall of the water tank 1, a support leg 47 is fixedly arranged on one side of the water tank 1 away from the placement groove 2, an anti-slip plate 48 is fixedly arranged on one side of the support leg 47 away from the water tank 1, placement frames 49 are fixedly arranged on both sides of the base 50, and the water pump 20 is fixed on one side of the placement frames 49.
Through the scheme, the multi-section cooling method/device for the aluminum alloy hub casting mould is simple in structure, practical and convenient, can quickly reduce the temperature field of the riser position in each section of mould, integrally cools the riser position to the internal structure of the hub material and refines the riser position, and effectively improves the mechanical performance of the hub; meanwhile, the service life of the die is prolonged, and the product percent of pass is improved.
The multi-stage cooling method for the novel aluminum alloy hub casting mold according to the embodiment of the invention shown in FIG. 5 comprises the following steps:
s101, casting the qualified molten aluminum into a steel mold at the temperature of 250-350 ℃;
s103, opening a bottom die cooling system, and continuously cooling for 10-15S;
s105, automatically opening the upper die front rim cooling system;
s107, after all the processes are cooled in place, an alarm system automatically gives an alarm;
and S111, demolding is realized.
The application provides a cooling water supply and management system for aluminum alloy wheel hub casting mould, cooling water supply and management system includes:
the temperature sensor and the water pressure sensor are respectively arranged at a first hose, a second hose, a third hose, a water inlet pipe and a water outlet pipe on the lower die, the temperature sensor and the air pressure sensor are arranged at the air outlet pipe, the temperature sensor is used for detecting the temperature of the current pipe passing through the die in real time, the water pressure sensor is used for detecting the water pressure of the current pipe passing through the die in real time, and the water pressure sensor is used for detecting the air pressure of the air outlet pipe;
the upper die of the lower die is separately connected with a cooling circulating water pump and used for supplying cooling water;
the cooling water control valve is separately arranged at the position of a cooling water inlet pipe on the lower die and is used for controlling the supply of cooling water;
the upper computer is connected with each circulating water pump in a control mode, and meanwhile, the upper computer is also connected with each temperature sensor and each water pressure sensor.
Furthermore, the host computer has a data analysis function, and when at least one of the temperature sensor, the water pressure sensor or the air pressure sensor detects that the temperature or the pressure of the cooling water and the air is abnormal, the host computer controls the alarm module to give an alarm.
Furthermore, the upper computer controls the water inflow of the cooling water control valve or the pump water pressure of the pump according to a preset cooling temperature instruction, and simultaneously adjusts the pump water pressure of the pump in real time according to the real-time temperature detected by the temperature sensor.
The application provides a multi-section cooling method of a cooling water supply and management system of an aluminum alloy hub casting mold, which is characterized by comprising the following steps of:
a. according to the usual cooling experience, setting a cooling time and a cooling temperature instruction required by each of the upper die and the lower die on an upper computer in advance;
b. connecting the cooling water supply and management system to the casting mold, and casting the qualified molten aluminum into a steel mold at the temperature of 250-350 ℃; starting an upper computer, and controlling a cooling water supply and management system to carry out cooling work by the upper computer;
c. the temperature sensor detects the temperature of the cooling water passing through the die, and when the temperature is found to be abnormal within a certain time, the upper computer determines that the cooling system is abnormal and gives an alarm;
d. the water pressure sensor detects the pressure of the cooling water passing through the die, and when the water pressure is found to be abnormal within a certain time, the upper computer determines that the cooling system is abnormal and gives an alarm;
e. and when the alarm condition is not found, the upper computer installs a preset instruction and finishes the cooling work.
Furthermore, the temperature sensor combines the requirement of cooling uniformity according to the detected temperature, and the upper computer reasonably adjusts the inlet and outlet speed of the cooling water so as to accurately control cooling.
In summary, according to the above technical solution of the present invention, firstly, a rate solution is injected into the lower mold 3, then the hydraulic cylinder 9 is started, the hydraulic cylinder 9 is started to drive the hydraulic rod 8 to extend, so as to achieve mutual extrusion between the upper mold 5 and the lower mold 3, then the motor 32 is started to drive the cylinder 31 to rotate, the cylinder 31 rotates to drive the cylindrical pin 29 to slide in the arc-shaped groove 30 on the side wall of the cylinder 31, so as to achieve the back-and-forth movement of the cylindrical pin 29, at the same time, the cylindrical pin 29 drives the fixed rod 26 to swing, so as to achieve the swing of the arc-shaped gear 33, the arc-shaped gear 33 drives the rack plate 22 to move, so as to achieve the movement of the base 50, the base 50 drives the upper mold 5 and the lower mold 3 to move, so that the impacting device on the lower mold 3 collides, and bubbles in the aluminum solution are discharged during the collision, the compaction of the aluminum solution is realized, the discharged air bubbles are discharged from the air outlet pipe 6, then the water pump 20 is started, the lower die 3 and the upper die 5 are arranged above the water tank 1, the upper die 5 and the lower die 3 can cool the liquid aluminum solution after the liquid aluminum solution is poured and pressed through the cooling device, when the cooling device works, the water pump 20 sends cooling water of the water tank 1 into the water inlet pipe 16 through the third hose 21, then the cooling water is sent into one side of the partition plate 18 in the second cavity 13 through a branch pipe on the water inlet pipe 16 and then reaches the other side of the partition plate 18 through the top of the partition plate 18, meanwhile, the cooling water can cool one side wall of the die-casting cavity 11, meanwhile, the other end of the water inlet pipe 16 discharges water, the cooling water is led into the first cavity 12, and meanwhile, when the cooling water enters the first cavity 12, the cooling water passes through the trapezoidal stop 51, because a narrow area is formed between the trapezoid stopper 51 and the first cavity 12, the flow of cooling water is never reduced when the cooling water passes through the middle of the lower mold 3, so that the cooling water deviated from the center of the lower mold can stay for a longer time, and the cooling liquid has a temperature when flowing into the middle of the lower mold 3 from the outside, thereby realizing that the forming solidification speed at the edges of the side edge and the bottom side is faster than the middle speed, so that the quality of the wheel hub can be ensured while cooling the wheel hub formed by die casting, the service life is greatly prolonged, the heat dissipation efficiency is greatly improved in the cooling process, the forming speed is improved, the cooling device has a simple structure and is convenient to operate and use, and the moving device is arranged at the bottom of the lower mold, and can drive the lower mold and the upper mold to move when being pressed together, the collision device can collide in the moving process, so that the aluminum solution in the die-casting process can be vibrated, the residue of bubbles in the die-casting process is reduced, the bubbles generated by vibration can be discharged through the air outlet pipe on one side of the upper die, the stability of wheel hub compaction can be improved, the quality is greatly improved, the service life of the die-casting machine can be prolonged, the cooled cooling water flows into the water tank 1 through the first hose 15, the second hose 19 and the third hose 21, then the cooling water is stirred and radiated through the stirring and radiating device in the water tank 1, the heat dissipation is increased, the stirring and radiating device can punch the stirring blades 45 through the backflow cooling liquid of the first hose 15, the second hose 19 and the third hose 21 when in use, the rotation of the rotating shaft 43 can be realized, and the cooling water can be overturned to dissipate the heat carried in the die-casting machine, greatly increases the heat loss and facilitates the rotary utilization of cooling water. The multi-section cooling method/device for the aluminum alloy hub casting mold has a simple structure, is practical and convenient, can quickly reduce the temperature field of the riser head part in each section of mold, and can be integrally cooled to the internal structure of a hub material and refined, so that the mechanical performance of the hub is effectively improved; meanwhile, the service life of the die is prolonged, and the product percent of pass is improved.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (10)
1. The utility model provides a novel multistage cooling device of aluminum alloy wheel hub casting mould, its characterized in that, includes water tank (1), the centre of water tank (1) is equipped with standing groove (2), the top of standing groove (2) is equipped with base (50), one side of base (50) and one side fixed connection of bed die (3), bed die (3) with connect through mobile device (4) between standing groove (2), the top of bed die (3) is equipped with mould (5).
2. The multi-section cooling device of the novel aluminum alloy hub casting mold according to claim 1, wherein air outlet holes are formed in both sides of the upper mold (5), one side of each air outlet hole is communicated with an air outlet pipe (6), a lifting plate (7) is arranged on one side, away from the lower mold (3), of the upper mold (5), limiting devices are arranged on both sides of the lifting plate (7), a hydraulic rod (8) is fixedly arranged in the middle of one side, away from the upper mold (5), of the lifting plate (7), one end, away from the lifting plate (7), of the hydraulic rod (8) is connected with an output end of a hydraulic cylinder (9), the hydraulic cylinder (9) is fixed on one side of the fixed plate (10), the fixed plate (10) is fixedly connected with the limiting devices, a die casting cavity (11) is arranged in the middle of the lower mold (3), and cooling devices are arranged around the die casting cavity (11), the cooling device comprises a first cavity (12), the first cavity (12) is arranged at the inner side of the bottom of the lower die (3), a second cavity (13) is formed in the periphery of the first cavity (12), a water outlet (14) is formed in the middle of the second cavity (13), one end of the water outlet (14) is communicated with a first hose (15), one end, far away from the water outlet (14), of the first hose (15) penetrates through the base (50) and the water tank (1) in sequence and extends towards the inside of the water tank (1), a plurality of trapezoidal stop blocks (51) are fixedly arranged on two sides, far away from the water outlet (14), of the trapezoidal stop blocks (51) on the side wall of the first cavity (12), a water inlet pipe (16) penetrates through the side wall of the first cavity (12), and a branch pipe (17) is arranged on the water inlet pipe (16), the one end that inlet tube (16) was kept away from to branch pipe (17) with second cavity (13) is linked together, second cavity (13) are located one side of branch pipe (17) is fixed and is equipped with division board (18), the one end of division board (18) with the bottom fixed connection of second cavity (13), one side bottom of branch pipe (17) is kept away from to second cavity (13) is equipped with second hose (19), the one end that second cavity (13) were kept away from to second hose (19) runs through in proper order base (50) and water tank (1), and, to the inside extension of water tank (1), the one end that branch pipe (17) were kept away from to inlet tube (16) is connected with the output of water pump (20), the input of water pump (20) is equipped with third hose (21), the one end that water pump (20) was kept away from to third hose (21) runs through base (50) with water tank (1), the water tank (1) extends to the inside of the water tank, two sides of the lower die (3) are provided with impact devices, and a stirring heat dissipation device is arranged inside the water tank (1);
the moving device comprises a rack plate (22), one side of the rack plate (22) is fixedly connected with the base (50), sliders (23) are arranged on two sides of the rack plate (22), the sliders (23) are arranged inside the sliding grooves (24), supporting rods (25) are arranged on two sides of the sliding grooves (24) and fixedly connected with the placing grooves (2), arc gears (33) are arranged at one ends, far away from the base (50), of the rack plate (22), the arc gears (33) are meshed with the rack plate (22), fixing rods (26) are fixedly arranged on one sides of the arc gears (33), movable shafts (27) are arranged at the joints of the fixing rods (26) and the arc gears (33), the movable shafts (27) are fixedly connected with a cross rod (28), two ends of the cross rod (28) are fixedly connected with the supporting rods (25) respectively, a cylindrical pin (29) is fixedly arranged on one side, away from the arc gear (33), of the fixing rod (26), the cylindrical pin (29) is arranged inside an arc-shaped groove (30), the arc-shaped groove (30) is formed in the side wall of a cylinder (31), the cylinder (31) is arranged between the supporting rods (25), and one end of the cylinder (31) is connected with the output end of the motor (32); the limiting device comprises a fixed sliding rod (34), one end of the fixed sliding rod (34) is fixedly connected with one side of the lower die (3) through a fixed block, a sleeve (35) is sleeved on the fixed sliding rod (34), one side of the sleeve (35) is fixedly connected with the lifting plate (7), and the fixed plate (10) is fixedly connected with one end of the fixed sliding rod (34); the impact device comprises impact rods (37), the impact rods (37) are fixedly arranged on two sides of the lower die (3), impact balls (38) are fixedly arranged at one ends, far away from the lower die (3), of the impact rods (37), impact plates (39) are arranged at one sides, far away from the impact rods (37), of the impact balls (38), and one ends of the impact plates (39) are fixedly connected with the side walls of the lower die (3) through connecting blocks; the stirring heat dissipation device comprises a rotating shaft (43), two ends of the rotating shaft (43) are connected with the inner wall of the water tank (1) through bearing seats (44), and a plurality of stirring blades (45) are fixedly arranged on the rotating shaft (43); and damping springs (36) are sleeved on the two sides of the sleeve (35) on the fixed sliding rod (34).
3. The novel multistage cooling device for the aluminum alloy hub casting mold as claimed in claim 1, wherein a water inlet (40) is formed in one side of the water tank (1), a water drainage pipe (41) is formed in one side of the bottom of the water tank (1), one end of the water drainage pipe (41) is communicated with the water tank (1), and a control valve (42) is arranged on the water drainage pipe (41).
4. The novel multistage cooling device for the aluminum alloy hub casting mold according to claim 3, wherein a plurality of heat dissipation holes (46) are formed in the side wall of the water tank (1), a support leg (47) is fixedly arranged on one side, away from the placing groove (2), of the water tank (1), an anti-skid plate (48) is fixedly arranged on one side, away from the water tank (1), of the support leg (47), placing frames (49) are fixedly arranged on two sides of the base (50), and the water pump (20) is fixed on one side of the placing frames (49).
5. A multi-section cooling method for a novel aluminum alloy hub casting mold, which is characterized in that the multi-section cooling device for the novel aluminum alloy hub casting mold disclosed by claim 4 comprises the following steps:
casting the qualified molten aluminum into a steel mould at the temperature of 250-350 ℃;
opening a bottom die cooling system, and continuously cooling for 10-15 s;
automatically opening the cooling system of the front rim of the upper die;
after all the processes are cooled in place, the alarm system automatically alarms;
and (5) demolding is realized.
6. A cooling water supply and management system for the aluminum alloy hub casting mold of claims 1-4, the cooling water supply and management system comprising:
the temperature sensor and the water pressure sensor are respectively arranged at a first hose, a second hose, a third hose, a water inlet pipe and a water outlet pipe on the lower die, the temperature sensor and the air pressure sensor are arranged at the air outlet pipe, the temperature sensor is used for detecting the temperature of the current pipe passing through the die in real time, the water pressure sensor is used for detecting the water pressure of the current pipe passing through the die in real time, and the water pressure sensor is used for detecting the air pressure of the air outlet pipe;
the upper die of the lower die is separately connected with a cooling circulating water pump and used for supplying cooling water;
the cooling water control valve is separately arranged at the position of a cooling water inlet pipe on the lower die and is used for controlling the supply of cooling water;
the upper computer is connected with each circulating water pump in a control mode, and meanwhile, the upper computer is also connected with each temperature sensor and each water pressure sensor.
7. The cooling water supply and management system according to claim 6, further characterized by further comprising an alarm module, wherein the upper computer has a data analysis function, and when at least one of the temperature sensor, the water pressure sensor or the air pressure sensor detects that the temperature or the pressure of the cooling water and the air is abnormal, the upper computer controls the alarm module to give an alarm.
8. The cooling water supply and management system according to claim 6, further characterized in that the upper computer controls the water inflow amount of the cooling water control valve or the pump water pressure of the pump according to a pre-configured cooling temperature command, and at the same time, adjusts the pump water pressure of the pump in real time according to the real-time temperature detected by the temperature sensor.
9. The multi-stage cooling method of the cooling water supply and management system of the aluminum alloy hub casting mold as set forth in any one of claims 6 to 8, characterized by comprising the steps of:
a. according to the usual cooling experience, setting a cooling time and a cooling temperature instruction required by each of the upper die and the lower die on an upper computer in advance;
b. connecting the cooling water supply and management system to the casting mold, and casting the qualified molten aluminum into a steel mold at the temperature of 250-350 ℃; starting an upper computer, and controlling a cooling water supply and management system to carry out cooling work by the upper computer;
c. the temperature sensor detects the temperature of the cooling water passing through the die, and when the temperature is found to be abnormal within a certain time, the upper computer determines that the cooling system is abnormal and gives an alarm;
d. the water pressure sensor detects the pressure of the cooling water passing through the die, and when the water pressure is found to be abnormal within a certain time, the upper computer determines that the cooling system is abnormal and gives an alarm;
e. and when the alarm condition is not found, the upper computer installs a preset instruction and finishes the cooling work.
10. The method for multi-stage cooling of a cooling water supply and management system for an aluminum alloy hub casting mold of claim 9, further characterized by:
the temperature sensor combines the requirement of cooling uniformity according to the detected temperature, and the upper computer reasonably adjusts the inlet and outlet speed of the cooling water so as to accurately control cooling.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911163883.7A CN111001783B (en) | 2019-11-25 | 2019-11-25 | Multistage cooling device of aluminum alloy wheel hub casting mould |
| CN202011240058.5A CN112338165B (en) | 2019-11-25 | 2019-11-25 | Multi-section cooling device and cooling method for aluminum alloy hub casting mold |
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| CN201911163883.7A CN111001783B (en) | 2019-11-25 | 2019-11-25 | Multistage cooling device of aluminum alloy wheel hub casting mould |
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| CN202011240058.5A Division CN112338165B (en) | 2019-11-25 | 2019-11-25 | Multi-section cooling device and cooling method for aluminum alloy hub casting mold |
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| CN111001783B CN111001783B (en) | 2021-03-23 |
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| CN201911163883.7A Active CN111001783B (en) | 2019-11-25 | 2019-11-25 | Multistage cooling device of aluminum alloy wheel hub casting mould |
| CN202011240058.5A Active CN112338165B (en) | 2019-11-25 | 2019-11-25 | Multi-section cooling device and cooling method for aluminum alloy hub casting mold |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111590049A (en) * | 2020-04-30 | 2020-08-28 | 浙江群臻科技股份有限公司 | Trampoline connecting piece and production and processing mould thereof |
| CN111590051A (en) * | 2020-05-29 | 2020-08-28 | 益阳仪纬科技有限公司 | Mould cooling device for aluminum alloy production |
| CN113263128A (en) * | 2021-05-12 | 2021-08-17 | 张伟伟 | New energy automobile hub forging machine and forging process thereof |
| CN114769515A (en) * | 2022-03-04 | 2022-07-22 | 海安县恒益滑动轴承有限公司 | Water-cooling mould for casting special alloy nonferrous metal large plate and special-shaped piece |
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| CN115229158B (en) * | 2022-07-08 | 2023-05-12 | 皖西学院 | Wheel hub compression molding equipment of electric automobile |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07178531A (en) * | 1993-12-22 | 1995-07-18 | Nissan Motor Co Ltd | Method for casting disk blank for forging in road wheel and its casting device |
| CN206241206U (en) * | 2016-12-07 | 2017-06-13 | 浙江六和轻机械有限公司 | A kind of aluminum alloy casting hub full water cooling but device |
| CN206241205U (en) * | 2016-12-07 | 2017-06-13 | 浙江六和轻机械有限公司 | A kind of mould that can eliminate casting aluminium alloy wheel hub pin hole |
| CN107138714A (en) * | 2017-07-03 | 2017-09-08 | 盐城市精工铸业股份有限公司 | A kind of shaped device of cast member |
| CN109228072A (en) * | 2018-07-10 | 2019-01-18 | 深圳市晓控通信科技有限公司 | A kind of plastic barrel formation device |
| CN208450583U (en) * | 2018-07-23 | 2019-02-01 | 江西久旺汽车配件制造有限公司 | It is a kind of convenient for cooling auto parts melting styling apparatus |
| CN208800769U (en) * | 2018-09-19 | 2019-04-30 | 江西晨飞铜业有限公司 | A kind of profile cooling device that Copper fabrication stability is good |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201586739U (en) * | 2009-12-24 | 2010-09-22 | 浙江今飞凯达轮毂有限公司 | Cooling system for low pressure casting mold of automobile hub |
| CN203304528U (en) * | 2013-05-31 | 2013-11-27 | 秦皇岛兴龙轮毂有限公司 | Aluminum alloy wheel hub casting water mist cooling device |
| CN206241226U (en) * | 2016-12-07 | 2017-06-13 | 大连亚明汽车部件股份有限公司 | A kind of die casting machine cooling water visual control system |
-
2019
- 2019-11-25 CN CN201911163883.7A patent/CN111001783B/en active Active
- 2019-11-25 CN CN202011240058.5A patent/CN112338165B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07178531A (en) * | 1993-12-22 | 1995-07-18 | Nissan Motor Co Ltd | Method for casting disk blank for forging in road wheel and its casting device |
| CN206241206U (en) * | 2016-12-07 | 2017-06-13 | 浙江六和轻机械有限公司 | A kind of aluminum alloy casting hub full water cooling but device |
| CN206241205U (en) * | 2016-12-07 | 2017-06-13 | 浙江六和轻机械有限公司 | A kind of mould that can eliminate casting aluminium alloy wheel hub pin hole |
| CN107138714A (en) * | 2017-07-03 | 2017-09-08 | 盐城市精工铸业股份有限公司 | A kind of shaped device of cast member |
| CN109228072A (en) * | 2018-07-10 | 2019-01-18 | 深圳市晓控通信科技有限公司 | A kind of plastic barrel formation device |
| CN208450583U (en) * | 2018-07-23 | 2019-02-01 | 江西久旺汽车配件制造有限公司 | It is a kind of convenient for cooling auto parts melting styling apparatus |
| CN208800769U (en) * | 2018-09-19 | 2019-04-30 | 江西晨飞铜业有限公司 | A kind of profile cooling device that Copper fabrication stability is good |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111590049A (en) * | 2020-04-30 | 2020-08-28 | 浙江群臻科技股份有限公司 | Trampoline connecting piece and production and processing mould thereof |
| CN111590051A (en) * | 2020-05-29 | 2020-08-28 | 益阳仪纬科技有限公司 | Mould cooling device for aluminum alloy production |
| CN113263128A (en) * | 2021-05-12 | 2021-08-17 | 张伟伟 | New energy automobile hub forging machine and forging process thereof |
| CN114769515A (en) * | 2022-03-04 | 2022-07-22 | 海安县恒益滑动轴承有限公司 | Water-cooling mould for casting special alloy nonferrous metal large plate and special-shaped piece |
| CN114769515B (en) * | 2022-03-04 | 2024-03-22 | 海安县恒益滑动轴承有限公司 | Water cooling die for casting special alloy nonferrous metal large plate and special-shaped piece |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111001783B (en) | 2021-03-23 |
| CN112338165A (en) | 2021-02-09 |
| CN112338165B (en) | 2021-08-17 |
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