CN117483650B - Wheel hub casting process - Google Patents
Wheel hub casting process Download PDFInfo
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- CN117483650B CN117483650B CN202311514381.0A CN202311514381A CN117483650B CN 117483650 B CN117483650 B CN 117483650B CN 202311514381 A CN202311514381 A CN 202311514381A CN 117483650 B CN117483650 B CN 117483650B
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- pouring
- cooling
- fixedly connected
- storage
- rotating shaft
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- 238000005266 casting Methods 0.000 title claims abstract description 50
- 238000003860 storage Methods 0.000 claims abstract description 92
- 238000001816 cooling Methods 0.000 claims abstract description 91
- 229910052751 metal Inorganic materials 0.000 claims abstract description 23
- 239000002184 metal Substances 0.000 claims abstract description 23
- 238000002156 mixing Methods 0.000 claims abstract description 16
- 239000000110 cooling liquid Substances 0.000 claims abstract description 15
- 239000004576 sand Substances 0.000 claims abstract description 11
- 238000000576 coating method Methods 0.000 claims abstract description 5
- 238000000465 moulding Methods 0.000 claims abstract description 5
- 239000011248 coating agent Substances 0.000 claims abstract description 4
- 230000000087 stabilizing effect Effects 0.000 claims description 39
- 238000007789 sealing Methods 0.000 claims description 38
- 238000007599 discharging Methods 0.000 claims description 7
- 238000000034 method Methods 0.000 claims description 6
- 239000003381 stabilizer Substances 0.000 claims description 3
- 230000000903 blocking effect Effects 0.000 description 6
- 239000007788 liquid Substances 0.000 description 5
- 230000001174 ascending effect Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004512 die casting Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000012958 reprocessing Methods 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/02—Sand moulds or like moulds for shaped castings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/22—Moulds for peculiarly-shaped castings
- B22C9/28—Moulds for peculiarly-shaped castings for wheels, rolls, or rollers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D27/00—Treating the metal in the mould while it is molten or ductile ; Pressure or vacuum casting
- B22D27/04—Influencing the temperature of the metal, e.g. by heating or cooling the mould
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D35/00—Equipment for conveying molten metal into beds or moulds
- B22D35/04—Equipment for conveying molten metal into beds or moulds into moulds, e.g. base plates, runners
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Molds, Cores, And Manufacturing Methods Thereof (AREA)
Abstract
The invention discloses a wheel hub casting process, which comprises the following steps of: s1, firstly, molding and sand coating is carried out on a mold; s2, placing the sand-coated molds in a storage device in batches, so that the molds are annularly arranged in the horizontal direction, and the vertical annular diameters are gradually stacked; s3, rotating the blending unit to enable a pouring device filled with molten metal in the blending unit to be arranged on the upper side of the storage device, lifting the storage device and being matched with the pouring device, pouring the molten metal into the die, and lowering the storage device; s4, reversely rotating the blending unit to enable the cooling device to be located on the upper side of the storage device, enabling the storage device to ascend and be matched with the cooling device, enabling cooling liquid in the cooling device to enter a cooling channel in the die, and cooling the casting; s5, descending the storage device, and standing for a certain time until the casting is formed.
Description
Technical Field
The invention relates to the technical field of hub casting, in particular to a hub casting process.
Background
The hub is a cylindrical metal part with the inner outline of the tire supporting the tire and the center of the metal part is arranged on the shaft, and plays a role in supporting the tire; because the hub appearance is complicated, uses casting technology to produce often, but wheel hub belongs to inhomogeneous structure, and the thickness difference is too big, just leads to whole cooling inhomogeneous easily, appears the quality problem.
For example, patent No. CN217192517U discloses a cooling structure of a low pressure casting hub, which uses a chiller for cooling, and the cooling is accelerated, but slag inclusion generated during cooling of the hub is difficult to rapidly discharge, resulting in reprocessing in a later stage, and increasing production cost.
Therefore, the hub has higher requirements on hardness, the common casting process is difficult to meet the requirements, and the conventional iron mold sand coating process is used for casting at present, so that the hardness of the hub can be enhanced, but the casting is performed singly and inevitably with low efficiency.
Disclosure of Invention
The present invention is directed to a hub casting process, which solves the above-mentioned problems.
In order to achieve the above purpose, the present invention provides the following technical solutions:
a hub casting process comprising the steps of:
S1, firstly, molding and sand coating is carried out on a mold;
s2, placing the sand-coated molds in a storage device in batches, so that the molds are annularly arranged in the horizontal direction, and the vertical annular diameters are gradually stacked;
The storage device comprises a drive center, a storage frame and a second rotating shaft, wherein the drive center is fixedly connected to the bottom of the storage frame, the second rotating shaft penetrates through the storage frame and extends downwards to be fixedly connected with the drive center, and the second rotating shaft is driven to rotate or lift or the storage frame is driven to lift by the drive center so as to cast or cool the die;
The top of the second rotating shaft is fixedly connected with a third rotating shaft; the storage frame comprises a plurality of storage containers which are arranged in an annular ladder shape from top to bottom, and each storage container is internally provided with a clamping groove for installing a die; the periphery of the storage container at the bottommost part is fixedly connected with a guide ring;
S3, rotating the blending unit to enable a pouring device filled with molten metal in the blending unit to be arranged on the upper side of the storage device, lifting the storage device and being matched with the pouring device, pouring the molten metal into the die, and lowering the storage device;
S4, reversely rotating the blending unit to enable the cooling device to be located on the upper side of the storage device, enabling the storage device to ascend and be matched with the cooling device, enabling cooling liquid in the cooling device to enter a cooling channel in the die, and cooling the casting;
s5, descending the storage device, and standing for a certain time until the casting is formed.
Preferably, the blending unit comprises a driving center II and a rotating shaft I, wherein the driving center II is fixedly connected to one end of the rotating shaft I, a pair of adjusting rods transversely extend out of the other end of the rotating shaft I, and the end parts of the adjusting rods are respectively provided with the pouring device and the cooling device.
Preferably, the pouring device comprises a pouring structure, a sealing structure and a stabilizing structure, and the pouring device and the cooling device have the same stabilizing structure and have the same connecting mode with the adjusting rod; the pouring structure is arranged at the end part of the adjusting rod, threads are arranged on the outer wall of the upper side of the end part, and the adjusting rod at the threads has a rotating function; the sealing structure is arranged on the upper surface of the pouring structure, the bottom of the pouring structure is hollowed out, and the periphery of the sealing structure is fixedly connected with the stabilizing structure.
Preferably, the pouring structure comprises a plurality of pouring containers which are arranged in an annular ladder shape from top to bottom; the pouring container at the top is fixedly connected with the adjusting rod; a plurality of evenly distributed distinguishing plates are fixedly connected in the pouring container, the pouring container is divided into a plurality of storage spaces corresponding to the clamping grooves, the middle part of each distinguishing plate is provided with a communication groove, the bottom of each storage space is provided with a blanking hole, and the bottom of each blanking hole is fixedly connected with a blanking nozzle.
Preferably, the stabilizing structure comprises a stabilizing disc, a pair of limiting rods and a pair of stabilizing rings, wherein the stabilizing rings are fixedly connected to the periphery of the bottom pouring container and correspond to the guide rings and the stabilizing rings; the middle part of the stabilizing disc is fixedly connected with an adjusting rod, and the lower side of the stabilizing disc is fixedly connected with a limiting rod; the stop rod extends through the stabilizer ring.
Preferably, the sealing structure comprises a plurality of sealing rods, a plurality of sealing rings corresponding to the pouring containers, a plurality of connecting rods and an adjusting ring; one end of each of the plurality of sealing rods is fixedly connected to the lower side of the sealing ring, and the other end of each of the plurality of sealing rods is inserted into the blanking hole; the closed rings are fixedly connected through connecting rods, the lower sides of the adjusting rings are fixedly connected to the connecting rods, the inner walls of the closed rings are in threaded fit with adjusting rods with threaded positions, and the rotating shafts are inserted into the adjusting rods and drive the adjusting rods with the threaded positions to rotate so that the adjusting rings ascend or descend.
Preferably, the cooling device further comprises a cooling structure, the cooling structure comprises a plurality of annular vessels, the annular vessels are arranged from top to bottom in a ladder shape, the annular vessels are provided with a protruding cover fixedly connected with the bottom of a cooling zone, the periphery of the protruding cover is provided with a cooling groove, and the cooling groove is rotationally connected with a cover plate.
Preferably, a casting cavity is arranged in the die, a pouring gate is arranged at the top of the die, an exhaust port is arranged at the periphery of the pouring gate, and the casting cavity is respectively poured and exhausted; the periphery of the exhaust port is provided with a cooling port, and the cooling port extends towards the inside of the die to form a cooling channel for cooling the casting; the upper part of the cooling port is fixedly connected with a push rod for pushing the cover plate open so that cooling liquid enters the cooling channel; the convex cover corresponds to the exhaust port, and the exhaust port and the casting mask are arranged inside to avoid the entry of cooling liquid.
Compared with the prior art, the invention has the beneficial effects that:
according to the invention, through carrying out double openings on the top die of the die, the exhaust is smoother in the casting process, and residues are cleaned more cleanly; a circle of cooling channels are formed outside the casting cavity in a surrounding mode, so that the casting is cooled more uniformly, and the overall quality is better;
The molds are axially arranged and gathered together through the storage container and are poured through the pouring device, so that the hubs can be produced in batches, the production efficiency is improved, and the economic benefit is increased; the cooling device and the pouring device are moved and transposed by rotating the rotating shaft, so that the effect of transporting molten metal and cooling liquid in batches is achieved, meanwhile, the stabilizer bar is connected to the first base in a sliding manner, and the fixing bar extending from the other side is connected with the cooling device and the pouring device, so that the safety and stability in the transportation process are ensured; meanwhile, the rotating shaft II and the rotating shaft III drive the rotating ring to rotate, and based on threaded fit of the rotating ring and the adjusting ring, lifting or downward movement of the adjusting ring is achieved under rotation of the rotating ring, so that an automatic pouring effect of metal liquid is achieved, the operation environment is safer, and potential safety hazards of workers are reduced.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a schematic diagram of a structure at a storage frame;
FIG. 3 is a schematic view showing the casting apparatus with its structure broken away;
FIG. 4 is a schematic view of the bottom structure of the pouring vessel of the present invention;
FIG. 5 is a plan view of a closure bar of the present invention;
FIG. 6 is a schematic view of the joint between the rotating ring and the fixed ring according to the present invention;
FIG. 7 is a schematic view of the internal structure of the rotary ring of the present invention;
FIG. 8 is a schematic view of the structure of the annular vessel of the present invention;
FIG. 9 is a cross-sectional view of a mold according to the present invention;
FIG. 10 is a plan view of the top gate of the top mold of the present invention.
In the figure: the device comprises a storage device 1, a driving center 11, a storage frame 12, a storage container 121, a guide ring 1211, a clamping groove 1212, a rotating shaft 13, a rotating shaft 131, a mixing unit 2, a pouring device 3, a pouring structure 31, a pouring container 311, a storage space 312, a fixing part 313, a dividing plate 3111, a communication groove 3112, a 3113 blanking hole 3114, a blanking mouth 32, a sealing structure 321, a closing rod 322, a closing ring 323, a connecting rod 324, a stabilizing structure 33, a stabilizing disc 331, a limiting rod 332, a stabilizing ring 333, a cooling device 4, a cooling structure 41, an annular vessel 411, a cooling interval 412, a protruding cover 4122, a cooling groove 4123, a cover plate 5, a mold 51, a bottom mold 52, a top mold 53, a pouring opening 531, a 532 exhaust port 533 cooling opening 5331 ejector pin 5332, a cooling channel 54 casting cavities 6, a driving center 2, a rotating shaft 62I, a 63 adjusting rod, a stabilizing rod 631, a rotating ring 632, and a fixing ring 633.
Detailed Description
Example 1: referring to fig. 1-10, the present invention provides a technical solution: a hub casting process comprising the steps of:
S1, firstly, molding and sand coating are carried out on a mold 5;
s2, placing the sand-coated dies 5 in a storage device 1 in batches, so that the dies 5 are annularly arranged in the horizontal direction and are gradually stacked in the vertical annular diameter;
S3, rotating the blending unit 2, so that a pouring device 3 filled with molten metal in the blending unit 2 is arranged on the upper side of the storage device 1, the storage device 1 is lifted and matched with the pouring device 3, the molten metal is poured into the die 5, and the storage device 1 is lowered;
s4, reversely rotating the blending unit 2 to enable the cooling device 4 to be located on the upper side of the storage device 1, enabling the storage device 1 to ascend and be matched with the cooling device 4, enabling cooling liquid in the cooling device 4 to enter a cooling channel 5332 in the die 5, and cooling castings;
S5, descending the storage device 1, and standing for a certain time until the casting is formed.
Specifically, the blending unit 2 includes a second driving center 6 and a first rotating shaft 62, one end of the first rotating shaft 62 is fixedly connected to the second driving center 6, a pair of adjusting rods 63 transversely extends out of the other end, the end, far away from the first rotating shaft 62, of the pair of adjusting rods 63 is respectively provided with the pouring device 3 and the cooling device 4, the first rotating shaft 62 is driven to rotate through rotation of the second driving center 6, and the first rotating shaft 62 drives the pouring device 3 and the cooling device 4 to rotate around the first rotating shaft 62; one end of a stabilizing rod 631 is vertically and fixedly connected with the adjusting rod 63, and the other end of the stabilizing rod 631 is connected to a chassis arranged on the second driving center 6 in a sliding manner, so that the stabilizing ring 632 can circumferentially slide on the first base; a pair of fixing rods extend from the middle of the pair of stabilizing rods 631, and the pair of fixing rods are fixedly connected with the peripheries of the pouring device 3 and the cooling device 4 respectively so as to limit the rotation of the pouring device 3 and the cooling device 4.
The storage device 1 comprises a driving center 11, a storage frame 12 and a second rotating shaft 13, wherein the driving center 11 is fixedly connected to the bottom of the storage frame 12, the second rotating shaft 13 penetrates through the middle of the storage frame 12 and extends downwards to be fixedly connected with the driving center 11, the second rotating shaft 13 is driven to rotate through the driving center 11, the storage frame 12 and the second rotating shaft 13 are driven to move upwards or downwards, the upwards movement can be matched with the cooling device 4 or the pouring device 3, the end part of the second rotating shaft 13 far away from the driving center 11 is fixedly connected with a third rotating shaft 131 with the diameter smaller than that of the second rotating shaft 13, the outer wall of the third rotating shaft 131 is fixedly connected with a first pair of blocking blocks, and the outer circumference diameter formed by the first pair of blocking blocks is identical with that of the second rotating shaft 13; the storage frame 12 comprises a plurality of storage containers 121 with different diameters, the storage containers 121 are distributed in a ring shape, the storage containers 121 are connected in a threaded manner, the storage containers 121 are arranged in a step-like manner from top to bottom, and a clamping groove 1212 is formed in each storage container 121 and used for placing the die 5, so that the die 5 is prevented from moving; a pair of guide rings 1211 is fixedly connected to the outer circumference of the storage container 121 at the lowermost portion, and the inner diameter of the guide rings 1211 is gradually reduced from top to bottom to a certain size, and is maintained.
The pouring device 3 comprises a pouring structure 31, a sealing structure 32 and a stabilizing structure 33, wherein the pouring device 3 and the cooling device 4 have the same stabilizing structure 33 and have the same connecting mode as the adjusting rod 63, the pouring structure 31 is fixedly connected with the end part of the adjusting rod 63, the sealing structure 32 is arranged on the upper surface of the opening of the pouring structure 31, and the stabilizing structure 33 is fixedly connected with the periphery of the pouring structure 31; the pouring structure 31 comprises a plurality of annular pouring containers 311 with different diameters, the pouring containers 311 are connected in a stepped threaded manner from bottom to top according to the diameters of the pouring containers 311, and the uppermost pouring container 311 is fixedly connected with a fixing part 313 for being fixedly connected with the end part of the adjusting rod 63; a plurality of dividing plates 3111 are fixedly connected in the pouring container 311, the pouring container 311 is divided into a plurality of storage spaces 312 with the same capacity for storing metal liquid required by each die 5, a communicating groove 3112 is formed in the middle of each dividing plate 3111, the metal liquid in each storage space 312 keeps the same liquid level, a blanking hole 3113 is formed in the bottom of each storage space 312, and a blanking nozzle 3114 is fixedly connected to the bottom of each blanking hole 3113 and used for injecting the metal liquid into the corresponding die 5; the bottom of the pouring structure 31 is hollowed out, the hollowed-out shape corresponds to the shape of the storage frame 12 (see fig. 4), so that the storage frame 12 can be embedded into the bottom of the pouring structure 31, namely, the bottom of each pouring container 311 corresponds to the upper side of the clamping groove 1212, after the clamping groove 1212 is used for placing the mold 5, the upper surface of the mold 5 corresponds to the lower surface of the pouring container 311, the number of the dividing plates 3111 of each pouring container 311 is the same as the number of the clamping grooves 1212 in the corresponding storage container 121, and the storage space 312 corresponds to the position of the corresponding clamping groove 1212.
The sealing structure 32 comprises a plurality of sealing rods 321, a plurality of sealing rings 322, a plurality of connecting rods 323 and adjusting rings 324, wherein the number of the sealing rings 322 corresponds to that of the pouring containers 311, so that the sealing rings 322 are arranged on the upper side of each pouring container 311, gaps are reserved at openings on the upper side of each sealing ring 322 corresponding to the pouring containers 311, one ends of the plurality of sealing rods 321 are fixedly connected to the lower side of each sealing ring 322 and serve as inlets for pouring molten metal, the other ends of the sealing rods 321 are inserted into blanking holes 3113, the sealing rods 321 correspond to the storage spaces 312 in number, the sealing rings 322 are fixedly connected through the connecting rods 323, one end of the uppermost connecting rod 323 is fixedly connected with the corresponding sealing ring 322, the other end of the uppermost connecting rod 323 is fixedly connected with the adjusting ring 324, and the adjusting ring 324 is positioned on the upper side of the fixing part 313 and is in threaded fit with the adjusting rods 63; the closing rod 321 has a diameter larger than the inner diameter of the discharging hole 3113, and a diameter gradually smaller at an end portion close to the discharging hole 3113 and smaller than the inner diameter of the discharging hole 3113 so as to be inserted into the discharging hole 3113 to form a clearance fit, preventing leakage of molten metal.
The end part of the adjusting rod 63 far away from the first rotating shaft 62 is fixedly connected with one end of a rotating ring 632, the rotating ring 632 is rotationally connected with a fixed ring 633, the fixed ring 633 is fixedly connected with the pouring device 3 or the cooling device 4, and the peripheries of the pouring device 3 and the cooling device 4 are fixedly connected with the fixed rod so as to prevent the pouring device 3 and the cooling device 4 from autorotating, so that only the rotating ring 632 can rotate; the rotating ring 632 and the fixed ring 633 are internally provided with a lifting hole which is used for inserting the third rotating shaft 131, the inner wall of the rotating ring 632 is fixedly connected with a pair of blocking blocks II, the width of each blocking block II in the direction of the fixed ring 633 is gradually reduced, the blocking blocks II are prevented from colliding with the blocking blocks I, the rotating shaft II 13 is more conveniently inserted into the lifting hole, the rotating ring 632 is driven to rotate through the rotation of the third rotating shaft 131, the outer wall of the rotating ring 632 is provided with threads which are matched with the adjusting ring 324 in a threaded manner, so that the adjusting ring 324 is driven to rise or fall through the adjusting ring 324, the sealing rod 321, the sealing ring 322 and the connecting rod 323 are driven to rise or fall, and accordingly the blanking hole 3113 is sealed and opened through the sealing rod 321.
The stabilizing structure 33 includes a stabilizing disc 331, a pair of limiting rods 332 and a pair of stabilizing rings 333, the pair of stabilizing rings 333 are fixedly connected to the periphery of the lowermost casting container 311, and are corresponding to the position of the guide ring 1211, the stabilizing disc 331 is fixedly connected to the adjusting rod 63, the pair of limiting rods 332 extending from the lower surface of the stabilizing disc 331 penetrate through the stabilizing rings 333 and further extend, the diameter of the limiting rods 332 is matched with the minimum inner diameter of the guide ring 1211, and the limiting rods 332 close to the stabilizing rods 631 are fixedly connected to the fixing rods.
The cooling device 4 includes a cooling structure 41 besides the stabilizing structure 33, where the cooling structure 41 includes a plurality of annular vessels 411, the annular vessels 411 and the pouring container 311 have the same structural characteristics, the bottom of a cooling section 412 formed by the annular vessels 411 is different from the storage space 312, the cooling section 412 is used for containing cooling liquid, the bottom is fixedly connected with a protruding cover 4121, the inside of the protruding cover 412 is hollowed out, the periphery of the protruding cover 412 is provided with a cooling groove 4122, the cooling groove 4122 is semi-annular, the outer wall of the cooling groove 4122 is rotationally connected with a cover plate 4123, and the opening or closing of the cooling groove 4122 is controlled by the rotation of the cover plate 4123.
The mold 5 comprises a bottom mold 51, a side mold 52 and a top mold 53, the bottom mold 51, the side mold 52 and the top mold 53 are mounted together after the mold 3 is molded and coated with sand, a hub-shaped casting cavity 54 is formed inside, a pouring opening 531 is formed in the top of the top mold 53, the periphery of the pouring opening 531 is connected with an exhaust opening 532, the pouring opening 531 and the exhaust opening 532 are communicated with the casting cavity 54, the pouring opening 531 corresponds to a blanking nozzle 3114, a cooling opening 533 is formed in the periphery of the exhaust opening 532, and the cooling opening 533 extends inwards the mold 5 to form a cooling channel encircling the periphery of the casting cavity 54, so that the casting is cooled more uniformly; the cooling port 533 corresponds to the cooling groove 4122, the upper part of the cooling port 533 is fixedly connected with a push rod 5331, the push rod 5331 protrudes out of the upper surface of the top die 53, the cover plate 4123 can be pushed open by the push rod 5331, so that cooling liquid enters a cooling channel 5332 arranged in the die 5 through the cooling port 533 to cool molten metal in the casting cavity 54, the protruding cover 4121 corresponds to the exhaust port 532, and the exhaust port 532 and the pouring port 531 are covered in the interior to avoid the cooling liquid; the die 5 is preferably made of die-casting aluminum alloy, and the light weight thereof enables more dies 5 to be placed in the storage frame 12, thereby improving the production efficiency.
The specific process flow is as follows: when the molding of the mold 5 is completed and the mold 5 is placed in the clamping groove 1212, the driving center II 6 is started, the adjusting rod 63 is driven by the rotating shaft I62 to enable the pouring device 3 to rotate to one side of molten metal, a worker pours molten metal into the storage space 312, after the mold 5 is placed, the driving center II 6 reversely rotates to drive the pouring device 3 to the position above the storage device 1, rotation is stopped, the driving center 11 is started to drive the storage frame 12 to slowly ascend, and in the ascending process, the guide ring 1211 firstly contacts the lower side of the limiting rod 332 and is inserted into the limiting ring 332 to be positioned, so that errors caused by alignment of the blanking hole 3113 and the pouring opening 531 are avoided; the storage frame 12 continues to ascend until the storage frame is completely matched with the hollow inside the pouring device 3, at the moment, the blanking nozzle 3114 is positioned inside the pouring opening 531, and the rotating shaft III 131 is positioned in the lifting holes of the rotating ring 632 and the fixed ring 633; then the driving center 11 drives the second rotating shaft 13 and the third rotating shaft 131 to rotate, the third rotating shaft 131 drives the rotating ring 632 to rotate, so that the adjusting ring 324 ascends, the sealing rod 321 is separated from the blanking hole 3113, molten metal in the storage space 312 enters the casting cavity 54 through the pouring opening 531, and gas generated by the molten metal in the pouring process is discharged through the exhaust opening 532, so that the quality of the casting is improved; after the pouring is completed, the driving center 11 drives the second rotating shaft 13 to reversely rotate, so that the sealing rod 321 is reinserted into the blanking hole 3113 to be sealed again, and then the storage frame 12 descends until the storage frame is completely separated from the pouring device 3; at this time, the worker starts to put the cooling liquid, which may be a cooling liquid or cold water, into the annular vessel 411; then the second driving center 6 rotates reversely, so that the cooling device 4 rotates to the upper side of the storage frame 12, then the storage frame 12 is driven to ascend again through the driving center 11 and is completely matched with the hollow bottom of the cooling structure 41, in the ascending process of the storage frame 12, the ejector rod 5331 on the die 5 can touch the cover plate 4123, the cover plate 4123 is ejected along with continuous ascending, then the storage frame 12 is completely matched with the hollow bottom of the cooling structure 41, and cooling liquid enters the die 5 through the cooling port 533, so that the hub casting in the die 5 is cooled; finally, the storage frame 12 descends, the poured mould 5 is taken out, a new mould coated with sand 5 is replaced, the pouring device 3 starts pouring new metal solution, and the steps are repeated to pour the next batch of moulds 5.
Claims (8)
1. A wheel hub casting process, which is characterized in that: the method comprises the following steps:
S1, firstly, molding and sand coating are carried out on a mold (5);
S2, placing the sand-coated dies (5) in a storage device (1) in batches, so that the dies (5) are annularly arranged in the horizontal direction, and the vertical annular diameters are gradually stacked;
The storage device (1) comprises a driving center (11), a storage frame (12) and a second rotating shaft (13), wherein the driving center (11) is fixedly connected to the bottom of the storage frame (12), the second rotating shaft (13) penetrates through the storage frame (12) and extends downwards to be fixedly connected with the driving center (11), and the second rotating shaft (13) is driven to rotate or lift through the driving center (11), or the storage frame (12) is driven to lift, so that the mold (5) is poured or cooled;
The top of the second rotating shaft (13) is fixedly connected with a third rotating shaft (131); the storage frame (12) comprises a plurality of storage containers (121), the storage containers (121) are arranged in an annular ladder shape from top to bottom, and a clamping groove (1212) is formed in each storage container (121) and used for installing the die (5); the periphery of the storage container (121) at the bottommost part is fixedly connected with a guide ring (1211);
s3, rotating the blending unit (2) to enable a pouring device (3) filled with molten metal in the blending unit (2) to be arranged on the upper side of the storage device (1), lifting the storage device (1) and being matched with the pouring device (3), pouring the molten metal into the die (5), and lowering the storage device (1);
S4, reversely rotating the blending unit (2) to enable the cooling device (4) to be located on the upper side of the storage device (1), enabling the storage device (1) to ascend and be matched with the cooling device (4), enabling cooling liquid in the cooling device (4) to enter a cooling channel (5332) in the die (5) to cool the casting;
s5, descending the storage device (1), and standing for a certain time until the casting is formed.
2. A hub casting process according to claim 1, wherein: the blending unit (2) comprises a driving center II (6) and a rotating shaft I (62), the driving center II (6) is fixedly connected to one end of the rotating shaft I (62), a pair of adjusting rods (63) transversely extend out of the other end of the rotating shaft I, and the end parts of the adjusting rods (63) are respectively provided with the pouring device (3) and the cooling device (4).
3. A hub casting process according to claim 2, wherein: the pouring device (3) comprises a pouring structure (31), a sealing structure (32) and a stabilizing structure (33), wherein the pouring device (3) and the cooling device (4) have the same stabilizing structure (33) and have the same connecting mode with the adjusting rod (63); the pouring structure (31) is arranged at the end part of the adjusting rod (63), threads are arranged on the outer wall of the upper side of the end part, and the adjusting rod (63) at the threads has a rotating function; the sealing structure (32) is arranged on the upper surface of the pouring structure (31), the bottom of the pouring structure (31) is hollowed out, and the periphery of the sealing structure is fixedly connected with the stabilizing structure (33).
4. A hub casting process according to claim 3, wherein: the pouring structure (31) comprises a plurality of pouring containers (311), and the pouring containers (311) are arranged in an annular ladder shape from top to bottom; the pouring container (311) at the top is fixedly connected with the adjusting rod (63); a plurality of evenly distributed distinguishing plates (3111) are fixedly connected with in the pouring container (311), the pouring container (311) is divided into a plurality of storage spaces (312) corresponding to clamping grooves (1212), a communicating groove (3112) is formed in the middle of the distinguishing plate (3111), a discharging hole (3113) is formed in the bottom of the storage space (312), and a discharging nozzle (3114) is fixedly connected to the bottom of the discharging hole (3113).
5. A hub casting process according to claim 4, wherein: the stabilizing structure (33) comprises a stabilizing disc (331), a pair of limiting rods (332) and a pair of stabilizing rings (333), wherein the stabilizing rings (333) are fixedly connected to the periphery of the bottom pouring container (311) and correspond to the guide rings (1211) and the stabilizing rings (333); the middle part of the stabilizing disc (331) is fixedly connected with an adjusting rod (63), and the lower side is fixedly connected with a limiting rod (332); the stop rod (332) extends through the stabilizer ring (333).
6. A hub casting process according to claim 4, wherein: the sealing structure (32) comprises a plurality of sealing rods (321), a plurality of sealing rings (322) corresponding to the pouring containers (311), a plurality of connecting rods (323) and an adjusting ring (324); one end of each of the plurality of sealing rods (321) is fixedly connected to the lower side of the corresponding sealing ring (322), and the other end of each of the plurality of sealing rods is inserted into the corresponding blanking hole (3113); the closed rings (322) are fixedly connected through connecting rods (323), the lower sides of the adjusting rings (324) are fixedly connected to the connecting rods (323), the inner walls of the closed rings are in threaded fit with adjusting rods (63) with threaded positions, the rotating shafts III (131) are inserted into the adjusting rods (63) and drive the adjusting rods (63) with the threaded positions to rotate, and accordingly the adjusting rings (324) ascend or descend.
7. A hub casting process according to claim 4, wherein: the cooling device (4) further comprises a cooling structure (41), the cooling structure (41) comprises a plurality of annular vessels (411), the annular vessels (411) are arranged from top to bottom in an annular ladder shape, the bottom of a cooling zone (412) is fixedly connected with a protruding cover (4121) arranged on the annular vessels (411), a cooling groove (4122) is arranged on the periphery of the protruding cover (4121), and a cover plate (4123) is rotatably connected with the cooling groove (4122).
8. A hub casting process according to claim 7, wherein: a casting cavity (54) is arranged in the die (5), a pouring opening (531) is arranged at the top, an exhaust port (532) is arranged at the periphery of the pouring opening (531), and the casting cavity (54) is poured and exhausted respectively; the periphery of the exhaust port (532) is provided with a cooling port (533), and the cooling port (533) extends towards the inside of the die (5) to form a cooling channel (5332) for cooling the casting; the upper part of the cooling port (533) is fixedly connected with a push rod (5331) for pushing the cover plate (4123) open so that cooling liquid enters the cooling channel (5332); the protruding cover (4121) corresponds to the air outlet (532), and covers the air outlet (532) and the pouring opening (531) inside, so that cooling liquid is prevented from entering.
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| CN202311514381.0A CN117483650B (en) | 2023-11-14 | 2023-11-14 | Wheel hub casting process |
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| CN202311514381.0A CN117483650B (en) | 2023-11-14 | 2023-11-14 | Wheel hub casting process |
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| CN117483650A (en) | 2024-02-02 |
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