CN211614281U - Low-pressure casting mold for wheel - Google Patents
Low-pressure casting mold for wheel Download PDFInfo
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- CN211614281U CN211614281U CN202020163650.9U CN202020163650U CN211614281U CN 211614281 U CN211614281 U CN 211614281U CN 202020163650 U CN202020163650 U CN 202020163650U CN 211614281 U CN211614281 U CN 211614281U
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- 238000005266 casting Methods 0.000 title claims abstract description 49
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 197
- 238000001816 cooling Methods 0.000 claims abstract description 127
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 28
- 229910052802 copper Inorganic materials 0.000 claims abstract description 28
- 239000010949 copper Substances 0.000 claims abstract description 28
- 238000012545 processing Methods 0.000 claims abstract description 13
- 239000000498 cooling water Substances 0.000 claims description 12
- 239000011324 bead Substances 0.000 claims description 7
- 239000007788 liquid Substances 0.000 claims description 6
- 229910001220 stainless steel Inorganic materials 0.000 claims description 5
- 239000010935 stainless steel Substances 0.000 claims description 5
- 230000007704 transition Effects 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 14
- 230000007547 defect Effects 0.000 abstract description 4
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- 238000004519 manufacturing process Methods 0.000 description 20
- 238000007711 solidification Methods 0.000 description 5
- 230000008023 solidification Effects 0.000 description 5
- 238000012546 transfer Methods 0.000 description 5
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 4
- 229910052782 aluminium Inorganic materials 0.000 description 4
- 230000003746 surface roughness Effects 0.000 description 4
- 238000003466 welding Methods 0.000 description 4
- 238000009434 installation Methods 0.000 description 3
- 238000004781 supercooling Methods 0.000 description 3
- 229910001208 Crucible steel Inorganic materials 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000002826 coolant Substances 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005242 forging Methods 0.000 description 2
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- 239000000243 solution Substances 0.000 description 2
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- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
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Abstract
The utility model belongs to the technical field of casting mould, a wheel low pressure casting mould is provided, reasonable improvement is carried out on a top mould structure, a back cavity processing boss is used as a point cooling source and matched with a closed water cooling pipeline, fixed point accurate refrigeration of the mould is realized, a red copper pouring mode is used for connecting a water pipe with the mould, and efficient heat conductivity of the water pipe and the mould is ensured; improve current integral type side forms, provided a neotype split type water-cooling side forms structure process out the arc water course in the water-cooling piece to be provided with the blind hole imbed red copper in the blind hole and insert, perhaps the arc water course is gone up the position that corresponds the thermal junction and is seted up the water hole that stretches to the thermal junction, and to a great extent has strengthened the cooling capacity of mould, has realized the regional quick high-efficient cooling of thick big thermal junction, has reduced the probability that the defect appears.
Description
Technical Field
The application relates to the technical field of wheel casting, in particular to a low-pressure casting mold for a wheel.
Background
The low-pressure casting of the wheel adopts a central bottom injection mode, a top mold, a bottom mold and side molds (generally 2 or 4) jointly form a cavity of the mold, high-temperature aluminum liquid is driven by external pressure to finish final solidification forming in the mold, and a qualified casting with standard size and performance is obtained. The bottom die mainly forms the appearance surface of the wheel, the side dies correspond to the outer rim, and the top die covers all parts of the wheel and comprises an inner rim, a spoke back cavity and a thick central flange. Therefore, the design quality of the top die cooling system is crucial to the smooth forming of the casting, and the temperature distribution of the top die cooling system influences the whole die system to determine whether the sequential solidification principle can be realized or not in the wheel forming process. Among the prior art, the cooling of top mould mainly relies on the forced air cooling technique to realize, according to wheel type size and molding characteristics, arranges multiple wind channel in the back of the body chamber from outer to inner, and this kind of mode has obvious not enough: firstly, the cooling efficiency of air cooling is low, and particularly the cooling speed of the hot spot position is slow, so that the production period is prolonged; secondly, the supercooling degree is low when the aluminum liquid is solidified, so that the mechanical property of the casting is low, and the reliability test cannot be met; the back cavity air ducts are arranged too many and are easy to be confused, so that the operation difficulty of machine staff is increased; fourthly, the production site has high noise and the working environment is severe; compressed air can not be recycled, so that resource waste is caused, all the compressed air and the compressed air are restricted to smooth production of the wheel, and the production cost of enterprises is increased.
Disclosure of Invention
The embodiment of the application provides a wheel low pressure casting mould can realize the fixed point cooling control to the cope match-die temperature, constructs the temperature gradient that is favorable to the wheel order to solidify to solve the shrinkage porosity that appears in the actual production, shrinkage cavity, casting defect such as performance low down for the production rhythm, reduce the rejection rate, reduce the manufacturing cost of enterprise, the high-quality production of guarantee wheel.
In order to achieve the purpose, the invention provides the following technical scheme:
the first aspect provides a low-pressure casting mold for a wheel, which comprises a bottom mold, side molds and a top mold, wherein a mold cavity is defined by the bottom mold, the side molds and the top mold, bosses are machined in the middle of the back cavity of the top mold, the number of the bosses is equal to the number of spokes, and the bosses are in one-to-one correspondence with the spokes; processing a through groove on the boss; the size of the periphery of the annular pipeline is smaller than that of the boss through groove, two ends of the annular pipeline are sealed, and a water inlet hole and a water outlet hole are respectively processed at the two ends of the annular pipeline; the annular pipeline is placed in the through groove, and the annular pipeline is fixed in the through groove by pouring red copper liquid.
In some embodiments, a water inlet pipe joint is welded on the water inlet hole, a water outlet pipe joint is welded on the water outlet hole, and the water inlet pipe joint and the water outlet pipe joint are connected with external water cooling equipment to form a cooling water circulation loop.
In some embodiments, the annular pipe, the water inlet pipe joint and the water outlet pipe joint are all made of stainless steel.
In some embodiments, the cross section of the through groove is U-shaped, and the red copper filling area is controlled below the radius of the transition circular arc of the boss cross section.
In some embodiments, the side mold comprises a side mold frame and a water cooling block, and a cavity for placing the water cooling block is processed at the position of the bead seat corresponding to one side close to the spoke of the side mold to form the side mold frame; the cavity is not communicated with the mold cavity; the water cooling block is arranged in the cavity, an arc-shaped water channel is processed in the water cooling block, the arc-shaped water channel forms a circular ring surrounding the bead seat, and a water hole extending to a hot joint at the joint of the spoke and the rim is formed in the position, corresponding to the hot joint at the joint of the spoke and the rim, of the arc-shaped water channel; the arc-shaped water channel is communicated with the water holes, and the arc-shaped water channel and the water holes are not communicated with the cavity.
In some embodiments, the water cooling block is provided with more than one water inlet pipe and one water outlet pipe, and the water inlet pipe and the water outlet pipe are connected with external water cooling equipment to form a circulating water path; the inlet tube with the quantity in water hole equals and the position one-to-one, the delivery port of inlet tube stretches into in the water hole.
In some embodiments, the side die comprises a side die frame and a water cooling block, and a cavity is processed in a region of the side die corresponding to a hot spot at the connecting part of the spoke and the rim to form the side die frame; the cavity is not communicated with the mold cavity; the water cooling block is arranged in the cavity, an arc-shaped water channel is processed in the water cooling block, the arc-shaped water channel forms a circular ring surrounding the mold cavity, and the arc-shaped water channel is not communicated with the cavity; processing blind holes on one side surface of the water cooling block facing to the mold cavity, wherein the blind holes are not communicated with the arc-shaped water channel, the positions of the blind holes correspond to the positions of the hot junctions one by one, and the number of the blind holes is equal to that of the hot junctions; and red copper inserts are embedded in the blind holes.
In some embodiments, a second water inlet hole and a second water outlet hole are machined on the outer side surface of the water cooling block, and a corresponding second water inlet pipe joint and a corresponding second water outlet pipe joint are welded, and the second water inlet pipe joint and the second water outlet pipe joint are communicated with external water cooling equipment to form a cooling water circulation passage.
In some embodiments, the aperture size of the blind holes and the size of the red copper inserts are adjusted according to the size of a wheel thermal joint area, and the number of the blind holes and the number of the red copper inserts are consistent with that of spokes.
In some embodiments, the water cooling block is detachably and fixedly installed in the cavity.
Compared with the prior art, the invention has the beneficial effects that:
the utility model provides a wheel low pressure casting mould, firstly, reasonable improvement is carried out to the top mould structure, the back cavity processing boss is used as a point cooling source, and is matched with a closed water cooling pipeline, the fixed point accurate refrigeration of the mould is realized, a red copper pouring mode is used for connecting a water pipe with the mould, and the efficient heat conduction capability of the water pipe and the mould is ensured; secondly, the existing integrated side die is improved, a novel split type water-cooling side die structure is provided, an arc-shaped water channel is processed in the water-cooling block, blind holes which correspond to the positions of the hot junctions in a one-to-one mode are arranged, red copper inserts are embedded in the blind holes, or water holes which extend to the hot junctions at the joints of the spokes and the wheel rims are arranged at the positions, corresponding to the hot junctions at the joints of the spokes and the wheel rims, on the arc-shaped water channel, the cooling capacity of the die is enhanced to a great extent, the rapid and efficient cooling of thick and large hot junction areas is realized, the solidification speed of aluminum liquid is improved, a reasonable sequential solidification temperature gradient is constructed, the probability of casting defects such as shrinkage porosity and shrinkage cavity of the hot junction areas is reduced, the temperature of the die is obviously reduced, the degree of a supercooled casting is increased, the internal crystal grain structure is refined, and the mechanical property of the wheel is improved, in addition, the new side forms structure has shortened the casting production cycle of wheel, has improved production efficiency, and water-cooling block detachable installs on the side forms frame, split type structure can also make into standard spare parts with the water-cooling block, is convenient for directly change like this, has avoided scrapping the condition of whole mould, has reduced the manufacturing cost of enterprise.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1 is a schematic structural diagram of a low-pressure casting mold for a wheel according to the present application;
FIG. 2 is a schematic diagram of the structure of the top die, boss and annular duct of a low pressure casting die for a vehicle wheel according to the present application;
FIG. 3 is a schematic structural view of an annular duct of a low pressure casting mold for a vehicle wheel according to the present application;
FIG. 4 is a schematic view of a boss arrangement of a low-pressure casting mold for a wheel according to the present application;
FIG. 5 is a schematic side view of a low-pressure casting mold for a wheel in embodiment 2;
FIG. 6 is a schematic view of the side form frame structure of the side form in embodiments 2 to 3 of the present application;
FIG. 7 is a schematic structural view of a water-cooled block of a side form in embodiments 2 to 3 of the present application;
FIG. 8 is a first schematic side view of a low-pressure casting mold for a wheel according to embodiment 3;
FIG. 9 is a second schematic side view of a low-pressure casting mold for a wheel according to embodiment 3;
wherein: 1-bottom die, 2-side die, 3-top die, 4-boss, 5-annular pipeline, 6-pipeline joint, 7-water inlet hole, 8-water outlet hole, 9-water inlet pipe joint, 10-water outlet pipe joint, 11-red copper, 12-through groove, 13-side die frame, 14-cavity, 15-second threaded hole, 16-water cooling block, 17-arc water channel, 18-water hole, 19-mounting boss, 21-first threaded hole, 22-first water inlet pipe, 23-water outlet pipe, 24-second water inlet pipe, 25-mounting bolt, 26-upper heat conducting surface of cavity, 27-lower heat conducting surface of cavity, 28-upper heat conducting surface of water cooling block, 29-lower heat conducting surface of water cooling block, 30-side matching surface, 31-red copper insert, 32-second water inlet pipe joint, 33-second water outlet pipe joint, and, 34-a second water inlet hole and 35-a second water outlet hole.
Detailed Description
The terms "first," "second," "third," and "fourth," etc. in the description and claims of this application and in the accompanying drawings are used for distinguishing between different objects and not for describing a particular order. Furthermore, the terms "include" and "have," as well as any variations thereof, are intended to cover non-exclusive inclusions. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those steps or elements listed, but may alternatively include other steps or elements not listed, or inherent to such process, method, article, or apparatus.
Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by one skilled in the art that the embodiments described herein can be combined with other embodiments.
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some, but not all, embodiments of the present application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
Example 1:
The manufactured annular pipeline 5 is placed in the through groove 12 of the boss 4 of the back cavity of the top die, the annular pipeline 5 is fixed in the through groove 12 by pouring red copper liquid, and the annular pipeline 5 and the boss 4 are fixedly connected into a whole by the red copper 11 shown in figure 4, so that an excellent heat conduction system is formed. The red copper pouring process needs to be careful, the filling area is controlled below the R angle of the section of the boss as far as possible, namely the filling area of the red copper 11 is controlled below the radius of the transition circular arc of the section of the boss 4, so that the heat transfer areas of the red copper and the boss are reduced, and the cooling range is more accurate. In the wheel pouring process, when the rim part is basically solidified and formed, the equipment valve is opened to introduce cooling water into the annular pipeline 5 through the water inlet pipe joint 9, so that the heat of the mold can be transferred to the cooling water in the pipeline through the red copper medium and is taken away by the circulating cooling water, and the cooling pipeline is arranged in the middle area of the spoke, so that the temperature of the whole top mold can be controlled, and the effective cooling of the mold is realized.
The low-pressure casting mold for the wheels in the embodiment 1 is simple in structure and ingenious in design, the structure of the top mold is reasonably improved, and the back cavity processing boss is used as a point cooling source and matched with a closed water cooling pipeline, so that the fixed-point accurate refrigeration of the mold is realized; the water pipe is connected with the die in a red copper pouring mode, so that the high-efficiency heat conduction capability of the water pipe and the die is ensured; the water-cooling medium is adopted to replace compressed air, so that the cooling capacity is higher, the efficiency is higher, the rapid cooling of the die is realized, and the mechanical property of the casting is greatly improved; the temperature control of the die is easier, which is beneficial to the adjustment of the technique of technicians and reduces the occurrence of waste products; in addition, the noise is low during working, and the field environment is improved; the cooling water can be recycled, and the production cost of enterprises is reduced.
Example 2
A low-pressure casting mold for a wheel is provided in embodiment 2, and embodiment 2 is different from embodiment 1 in that not only the water cooling pipe is provided in the top mold 3 but also the water cooling pipe is provided in the side mold 2 in embodiment 2.
As shown in fig. 5 to 7, the side forms 2 are divided into 4 pieces, and each side form 2 includes the side form frame 13 and the water cooling block 16. Each side die 2 is provided with a cavity 14 for placing a water cooling block 16 at the position of the corresponding bead seat close to one side of the spoke, so that a side die frame 13 is formed. The cavity 14 does not communicate with the mold cavity. The side die frame 13 is integrally formed by casting, and is made of cast steel 35CrMo, so that the manufacturing cost is low. The upper and lower both sides of cavity 14 need high accuracy processing for leveling the heat conduction face, and it requires surface roughness Ra <1.6 to level the heat conduction face to realize thermal high-efficient transmission.
The water cooling block 16 is arranged in the cavity 14 and used for intensively cooling the position of a thick hot spot, the front side and the rear side of the water cooling block 16 are arc-shaped, the water cooling block 16 is tightly attached to the inner wall of the cavity 14, and the water cooling block and the cavity are tightly matched to ensure the heat conduction. Processing has arc water course 17 in the water-cooling piece 16, in 4 water-cooling pieces 16 arc water course 17 forms and centers on the ring of child circle seat arc water course 17 is last correspond spoke and rim handing-over department heat festival the position seted up stretch to spoke and rim handing-over department heat festival's water hole 18, arc water course 17 intercommunication water hole 18, and arc water course 17 with water hole 18 all with cavity 14 does not communicate, and coolant just so can be close the mould die cavity face more, makes its cooling effect to the heat festival strengthen. The water cooling block 16 is formed by forging, and is made of forged steel 35CrMo, the structure of the water cooling block is compact, and water leakage is not easy to occur. The upper side and the lower side of the water cooling block 16 are also flat heat conducting surfaces, the surface roughness Ra is required to be less than 1.6, and the upper side and the lower side of the cavity 14 are matched with the upper side and the lower side of the water cooling block 16 to form a heat transfer structure.
The welding has two inlet tubes and an outlet pipe 23 on the water-cooling piece 16, as shown in fig. 2, first inlet tube 22, outlet pipe 23, second inlet tube 24 all are connected with outside water cooling equipment, constitute the circulation water route, and outlet pipe 23 is located the intermediate position of water-cooling piece 16, two the inlet tube is located respectively the both ends of water-cooling piece 16. In fig. 2, it can be seen that the first water inlet pipe 22 and the second water inlet pipe 24 correspond to the water holes 18 in one-to-one correspondence, the water outlets of the first water inlet pipe 22 and the second water inlet pipe 24 extend into the water holes 18, and the cooling water flows from the water inlet pipes into the water holes 18, flows from the water holes 18 into the arc-shaped water channel 17, and then flows out through the water outlet pipe 23. In this embodiment, the joints of the arc-shaped water channel 17 and the arc-shaped water channel 17 with the two water inlet pipes and the water outlet pipe 23 are sealed according to a strict welding process, so that the service life is ensured, and water leakage accidents are avoided.
The water cooling block 16 is detachably and fixedly installed in the cavity 14, in this embodiment, installation bosses 19 are processed on two sides of the water cooling block 16, a first threaded hole 21 is formed in each installation boss 19, a second threaded hole 15 is correspondingly formed in the side die frame 13, and an installation bolt 25 penetrates through the first threaded hole 21 and the second threaded hole 15 to fix the water cooling block 16 and the side die frame 13 into a whole.
In other embodiments, the detachable fixed connection between the water cooling block 16 and the side form frame 13 may also be a fixed connection by means of a snap, a fixed key, or a fixed pin.
Example 3:
a low-pressure casting mold for a wheel is provided in embodiment 3, and embodiment 3 is different from embodiment 1 in that not only a water cooling pipe is provided in the top mold 3 but also a water cooling pipe is provided in the side mold 2 in embodiment 3.
Specifically, as shown in fig. 6-9, the improved side forms 2 are of a split structure and comprise a side form frame 13 and a water cooling block 16, the side form frame 13 is made of cast steel 35CrMo, manufacturing cost can be reduced, the integrated side forms 2 are cast, and cavities 14 are machined in the areas, corresponding to the hot junctions of the connecting parts of the spokes and the rims, of the side forms 2 to form the side form frame 13. The cavity 14 is not in communication with the mold cavity. The cavity 14 comprises an upper heat conducting plane 26 of the cavity and a lower heat conducting plane 27 of the cavity, and precise milling is required to ensure that the surface roughness Ra is less than 1.6 so as to realize efficient heat transfer.
The water cooling block 16 is detachably and fixedly arranged in the cavity 14, an arc-shaped water channel 17 is processed in the water cooling block 16, the arc-shaped water channel 17 forms a circular ring surrounding the mold cavity, and the arc-shaped water channel 17 is not communicated with the cavity 14. The water cooling block 16 is formed by forging, and is made of forged steel 35CrMo, the structure of the water cooling block is compact, and water leakage is not easy to occur. The height of the water cooling block 16 is consistent with that of the cavity 14 on the side die frame 13, the upper side surface and the lower side surface of the water cooling block are respectively an upper heat conducting surface 28 of the water cooling block and an upper heat conducting surface 29 of the water cooling block, and the surface roughness Ra is required to be less than 1.6. The upper heat conduction plane 26 of the cavity, the lower heat conduction plane 27 of the cavity, the upper heat conduction plane 28 of the water cooling block and the upper heat conduction plane 29 of the water cooling block are flat heat conduction planes, the upper heat conduction plane 26 of the cavity is matched with the upper heat conduction plane 28 of the water cooling block, and the lower heat conduction plane 27 of the cavity is matched with the upper heat conduction plane 29 of the water cooling block to form a heat transfer structure so as to achieve efficient heat transfer. The water cooling block 16 is assembled in the cavity 14 and used for intensively cooling the position of the thick and large thermal node, and the water cooling block and the thermal node are closely matched to ensure the heat conduction.
An arc-shaped water channel 17 is processed on the water cooling block 16, the section of the water cooling block is U-shaped, two ends of the arc-shaped water channel 17 are welded and sealed by baffles, and the distance between the tail end of the arc-shaped water channel and a side matching surface is required to be less than 20mm, so that the sufficient cooling strength of a side die joint is ensured; a second water inlet hole 34 and a second water outlet hole 35 are processed on the outer side surface of the water cooling block 16, a stainless steel second water inlet pipe joint 32 and a stainless steel second water outlet pipe joint 33 are welded respectively, the joints are connected with external water cooling equipment or water storage equipment to form a sealed cooling water circulation passage in a one-inlet-one-outlet mode, a strict welding process is required to be established at the water passage and the joints for plugging, and water leakage accidents cannot occur. Processing the blind hole on the side of water-cooling block 16 orientation mould die cavity, the blind hole with arc water course 17 does not communicate, the position of blind hole with the regional position one-to-one of foundry goods thermal link, and the quantity of blind hole equals the quantity of thermal link 31 is inserted to the embedding red copper in the blind hole, and its tip is apart from the water course die cavity face 5-10mm, can further press close to the thermal link position with the cooling like this to strengthen its heat dissipation heat conductivility. The size of the red copper insert 31 is adjusted according to the size of the hot spot area of the casting, and the number of the red copper insert is consistent with that of the spoke.
The front side and the rear side of the water cooling block 16 are arc-shaped, the water cooling block 16 is tightly attached to the inner wall of the cavity 14, mounting bosses 19 are machined on two sides of the water cooling block 16, 1 first threaded hole 21 is drilled respectively, a second threaded hole 15 is correspondingly formed in the side die frame 13, and the water cooling block 16 and the side die frame 13 are fixed into a whole by means of 2M 16 mounting bolts 25 penetrating through the first threaded holes 21 and penetrating into the second threaded hole 15. During the operating condition, cooling water gets into the circulation flow in the closed water course to further extend to thick big thermal junction region through red copper insert 31 with cooling, thereby can high efficiency take away the heat of gathering, realized the rapid cooling of thermal junction.
In other embodiments, the detachable fixed connection between the water cooling block 16 and the side form frame 13 may also be a fixed connection by means of a snap, a fixed key, or a fixed pin.
The low-pressure casting mold for the wheel in the embodiment 3 is simple in structure, and by designing the side mold water cooling block and the red copper insert structure, the cooling and heat absorption capacity of a hot spot area is greatly enhanced, the solidification speed of molten aluminum is improved by rapid heat conduction and cooling, the probability of occurrence of shrinkage porosity and shrinkage cavity defects is eliminated, meanwhile, the supercooling degree of a casting is increased, the internal crystal grain structure is refined, the mechanical property of the casting is improved, in addition, the casting production period is obviously shortened, and the production efficiency is improved; the side form water cooling block can be made into a standard spare part, is convenient to replace and maintain, and reduces the production cost of enterprises. In a word, the application of the novel die optimizes the casting process of the wheel and further realizes high-quality production of the wheel.
The foregoing detailed description of the embodiments of the present application has been presented to illustrate the principles and implementations of the present application, and the above description of the embodiments is only provided to help understand the method and the core concept of the present application; meanwhile, for a person skilled in the art, according to the idea of the present application, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present application.
Claims (10)
1. The utility model provides a wheel low pressure casting mould, includes die block, side forms and top mould, and die block, side forms and top mould enclose into mould cavity, its characterized in that:
processing bosses in the middle of the back cavity of the top die, wherein the number of the bosses is equal to that of the spokes, and the bosses correspond to the spokes one to one; processing a through groove on the boss;
the size of the periphery of the annular pipeline is smaller than that of the boss through groove, two ends of the annular pipeline are sealed, and a water inlet hole and a water outlet hole are respectively processed at the two ends of the annular pipeline;
the annular pipeline is placed in the through groove, and the annular pipeline is fixed in the through groove by pouring red copper liquid.
2. The low pressure casting mold for vehicle wheels as claimed in claim 1, wherein a water inlet pipe joint is welded to the water inlet hole, a water outlet pipe joint is welded to the water outlet hole, and the water inlet pipe joint and the water outlet pipe joint are connected to an external water cooling device to form a cooling water circulation loop.
3. The low pressure casting mold for vehicle wheels as claimed in claim 2, wherein the annular pipe, the water inlet joint and the water outlet joint are all made of stainless steel.
4. The low-pressure casting die for the wheel as claimed in claim 1, wherein the cross section of the through groove is U-shaped, and the red copper filling area is controlled below the radius of a transition circular arc of the boss cross section.
5. The low-pressure casting die for the wheel as claimed in claim 1, wherein the side die comprises a side die frame and a water cooling block, and a cavity for placing the water cooling block is machined in the position, corresponding to the bead seat on the side close to the spoke, of the side die to form the side die frame; the cavity is not communicated with the mold cavity;
the water cooling block is arranged in the cavity, an arc-shaped water channel is processed in the water cooling block, the arc-shaped water channel forms a circular ring surrounding the bead seat, and a water hole extending to a hot joint at the joint of the spoke and the rim is formed in the position, corresponding to the hot joint at the joint of the spoke and the rim, of the arc-shaped water channel; the arc-shaped water channel is communicated with the water holes, and the arc-shaped water channel and the water holes are not communicated with the cavity.
6. The low-pressure casting die for the wheel as claimed in claim 5, wherein more than one water inlet pipe and one water outlet pipe are arranged on the water cooling block and connected with external water cooling equipment to form a circulating water path; the inlet tube with the quantity in water hole equals and the position one-to-one, the delivery port of inlet tube stretches into in the water hole.
7. The low-pressure casting die for the wheel as claimed in claim 1, wherein the side die comprises a side die frame and a water cooling block, and a cavity is machined in the area of the side die corresponding to a hot spot at the connecting part of the spoke and the rim to form the side die frame; the cavity is not communicated with the mold cavity; the water cooling block is arranged in the cavity, an arc-shaped water channel is processed in the water cooling block, the arc-shaped water channel forms a circular ring surrounding the mold cavity, and the arc-shaped water channel is not communicated with the cavity; processing blind holes on one side surface of the water cooling block facing to the mold cavity, wherein the blind holes are not communicated with the arc-shaped water channel, the positions of the blind holes correspond to the positions of the hot junctions one by one, and the number of the blind holes is equal to that of the hot junctions; and red copper inserts are embedded in the blind holes.
8. The low-pressure casting die for the wheel as claimed in claim 7, wherein a second water inlet hole and a second water outlet hole are formed in the outer side surface of the water cooling block, and a corresponding second water inlet pipe joint and a second water outlet pipe joint are welded, and the second water inlet pipe joint and the second water outlet pipe joint are communicated with external water cooling equipment to form a cooling water circulation passage.
9. The low-pressure casting die for the wheel as claimed in claim 7, wherein the hole diameter size of the blind holes and the size of the red copper inserts are adjusted according to the size of a wheel hot spot area, and the number of the blind holes and the red copper inserts are consistent with that of spokes.
10. A low pressure casting mould for wheels according to claim 5 or claim 7 wherein the water cooled block is removably and fixedly mounted in the cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020163650.9U CN211614281U (en) | 2020-02-12 | 2020-02-12 | Low-pressure casting mold for wheel |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113414374A (en) * | 2021-06-29 | 2021-09-21 | 中信戴卡股份有限公司 | Cooling device for side mold of cast wheel |
| CN116060599A (en) * | 2023-04-06 | 2023-05-05 | 秦皇岛中秦渤海轮毂有限公司 | Point-cooling type three-body top die full water cooling structure |
| CN116900279A (en) * | 2023-07-25 | 2023-10-20 | 浙江新峰机械有限公司 | A fully water-cooled low-pressure wheel hub mold |
-
2020
- 2020-02-12 CN CN202020163650.9U patent/CN211614281U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113414374A (en) * | 2021-06-29 | 2021-09-21 | 中信戴卡股份有限公司 | Cooling device for side mold of cast wheel |
| CN113414374B (en) * | 2021-06-29 | 2025-02-21 | 中信戴卡股份有限公司 | A cooling device for casting wheel side mold |
| CN116060599A (en) * | 2023-04-06 | 2023-05-05 | 秦皇岛中秦渤海轮毂有限公司 | Point-cooling type three-body top die full water cooling structure |
| CN116060599B (en) * | 2023-04-06 | 2023-07-28 | 秦皇岛中秦渤海轮毂有限公司 | Point-cooling type three-body top die full water cooling structure |
| CN116900279A (en) * | 2023-07-25 | 2023-10-20 | 浙江新峰机械有限公司 | A fully water-cooled low-pressure wheel hub mold |
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