CN211990881U - Low-pressure casting wheel mould - Google Patents
Low-pressure casting wheel mould Download PDFInfo
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- CN211990881U CN211990881U CN202020163638.8U CN202020163638U CN211990881U CN 211990881 U CN211990881 U CN 211990881U CN 202020163638 U CN202020163638 U CN 202020163638U CN 211990881 U CN211990881 U CN 211990881U
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Abstract
The utility model relates to a wheel casting mould technical field discloses a wheel low pressure casting mould, the water-cooling block structure of side forms has been designed, process annular water course on the water-cooling block, the water-cooling form has been realized, and bore the water hole in the position that corresponds the spoke heat festival, coolant just so can more add and be close to the die cavity face, make its cooling effect to the heat festival strengthen, great reinforcing the cooling capacity, can be fast effectual take away the regional huge heat of thick big heat festival, the solidification rate of aluminium liquid has been improved, eliminate the shrinkage porosity, the appearance of shrinkage cavity defect, and simultaneously, the super-cooling degree has been strengthened, the grain organization has been refined, the mechanical properties of wheel outer rim and child ring seat position have been improved, casting production cycle has also correspondingly had obvious shortening.
Description
Technical Field
The application relates to the technical field of wheel casting molds, in particular to a low-pressure casting wheel mold.
Background
The joint of the aluminum alloy wheel spoke and the rim has a thicker structure, forms an obvious casting thermal node, is a difficult point in casting production, and is used for solving the problem to obtain an excellent wheel casting, and corresponding cooling measures are usually arranged on a side die. At present, a mode of directly blowing compressed air on the surface of a mold is commonly adopted by a plurality of manufacturers to realize the cooling of a hot spot so as to ensure the rapid solidification and forming of aluminum liquid. However, because the hot spot area is very large, heat is excessively gathered, and the heat conducting capacity of air is low, the heat is difficult to be rapidly and effectively dissipated by the method, so that high-temperature molten aluminum is slowly solidified, and casting defects such as shrinkage porosity and shrinkage cavity occur at the hot spot due to the fact that effective feeding cannot be achieved. In addition, the higher temperature of the die can also reduce the supercooling degree, so that the internal crystal grains of the casting are coarse, the structure is loose and not compact, the mechanical property is low, and even the requirements of customers cannot be met.
Disclosure of Invention
The embodiment of the application provides a low pressure casting wheel mould, can effectively strengthen the heat-sinking capability in the hot spot region, promotes the quick solidification of aluminium liquid and takes shape, solves the casting problems such as shrinkage porosity, shrinkage cavity that the hot spot is easy to appear, and the inside crystalline grain of foundry goods also can obtain obviously refining simultaneously, and mechanical properties promotes by a wide margin to realize the high-quality production of 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 top mold, a bottom mold and a side mold, wherein the top mold, the bottom mold and the side mold jointly form a mold cavity, 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 a position, corresponding to a tire bead seat on one side close to a 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 two water inlet pipes and one water outlet pipe, and the two water inlet pipes and the water outlet pipe are connected with external water cooling equipment to form a circulating water path; the water outlet pipe is located in the middle, and the two water inlet pipes are located at two ends of the water cooling block respectively.
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. The cooling water flows out of the water inlet pipe into the water holes, flows into the arc-shaped water channel from the water holes and then flows out of the water outlet pipe.
In some embodiments, the sideform is divided into 4 pieces, each sideform including the sideform frame and the water-cooled block.
In some embodiments, the upper and lower sides of the cavity are flat heat conducting surfaces; the upper side and the lower side of the water cooling block are flat heat conducting surfaces; the upper side and the lower side of the cavity are matched with the upper side and the lower side of the water cooling block to form a heat transfer structure.
In some embodiments, the flat thermally conductive surface has a surface roughness Ra < 1.6.
In some embodiments, the water cooling block is removably and fixedly mounted within the cavity.
In some embodiments, mounting bosses are machined on two sides of the water cooling block, first threaded holes are formed in the mounting bosses, second threaded holes are correspondingly formed in the side die frame, and mounting bolts penetrate through the first threaded holes and the second threaded holes to fix the water cooling block and the side die frame into a whole.
In some embodiments, the side die frame and the water cooling block are made of steel 35CrMo, the side die frame is integrally formed by casting, and the water cooling block is formed by forging.
In some embodiments, the front side and the rear side of the water cooling block are arc-shaped, and the water cooling block is tightly attached to the inner wall of the cavity.
Compared with the prior art, the invention has the beneficial effects that:
the utility model provides a wheel low pressure casting mould, including top mould, die block and side forms, the side forms includes side forms frame and water-cooling block, the water-cooling block is installed in the cavity, it has the arc water course to process in the water-cooling block, the arc water course forms the ring that centers on the child circle seat, the position that corresponds spoke and rim handing-over department heat festival on the arc water course sets up the water hole that stretches to spoke and rim handing-over department heat festival, the utility model discloses simple structure has designed side forms water-cooling block structure to realize the water-cooling form, greatly strengthened the cooling capacity of mould, can effectively take away the huge heat in thick big heat festival region fast, improved the solidification rate of aluminium liquid, eliminated the appearance of heat festival shrinkage porosity, shrinkage cavity defect; meanwhile, the supercooling degree is increased, the grain structure is refined, the mechanical properties of the outer rim and the bead seat of the wheel are improved, and the casting production period is correspondingly obviously shortened. In addition, the side die water cooling block can be fixed by opening and disassembling, and can be made into standard spare parts, so that the side die water cooling block is convenient to directly replace, the condition of scrapping the whole die is avoided, and the production cost is reduced.
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 view of a low-pressure casting mold for wheels of the present invention;
fig. 2 is a schematic side die structure diagram i of a low-pressure casting die for a wheel according to the present invention;
fig. 3 is a schematic structural view of a side die frame of a low-pressure casting die for a wheel according to the present invention;
fig. 4 is a schematic structural diagram of a water cooling block of a low-pressure casting mold for a wheel according to the present invention;
fig. 5 is a schematic view of a side die structure of a low-pressure casting die for a wheel according to the present invention;
fig. 6 is a schematic diagram of a side die structure of a low-pressure casting die for a wheel according to the present invention;
wherein: 1-top die, 2-side die, 3-bottom die, 4-side die frame, 5-cavity, 6-second threaded hole, 7-water cooling block, 8-arc water channel, 9-water hole, 10-mounting boss, 11-first threaded hole, 12-first water inlet pipe, 13-water outlet pipe, 14-second water inlet pipe and 15-mounting bolt.
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 following describes a low-pressure casting mold for a wheel, which is disclosed by the application and is combined with the attached drawings 1-5 of the specification, and comprises a top mold 1, a bottom mold 3 and a side mold 2, wherein the top mold 1, the bottom mold 3 and the side mold 2 jointly form a mold cavity to finish the precise forming of a wheel casting. As shown in fig. 5, the side forms 2 are divided into 4 pieces, and each side form 2 includes the side form frame 4 and the water-cooling block 7. And processing a cavity 5 for placing a water cooling block 7 at the corresponding tire bead seat close to one side of the spoke of each side die 2 to form a side die frame 4. The cavity 5 is not communicated with the mold cavity. The side die frame 4 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 5 need high accuracy processing for leveling the heat conduction face, and it requires surface roughness Ra to be < 1.6 to level the heat conduction face to realize thermal high-efficient transmission.
The water cooling block 7 is arranged in the cavity 5 and used for intensively cooling the thick and big thermal junction positions, the front side and the rear side of the water cooling block 7 are arc-shaped, the water cooling block 7 is tightly attached to the inner wall of the cavity 5, and the water cooling block 7 and the cavity are tightly matched to ensure the heat conduction. Processing has arc water course 8 in the water-cooling piece 7, in 4 water-cooling pieces 7 arc water course 8 forms and centers on the ring of child seat arc water course 8 is last to correspond spoke and rim handing-over department heat festival the position seted up extend to spoke and rim handing-over department heat festival's water hole 9, arc water course 8 intercommunication water hole 9, and arc water course 8 with water hole 9 all with cavity 5 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 7 is formed by forging, the material is forged steel 35CrMo, the structure is compact, and water leakage is not easy to occur. The upper side and the lower side of the water cooling block 7 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 5 are matched with the upper side and the lower side of the water cooling block 7 to form a heat transfer structure.
The welding has two inlet tubes and an outlet pipe 13 on the water-cooling piece 7, as shown in fig. 2, first inlet tube 12, outlet pipe 13, second inlet tube 14 all are connected with outside water cooling equipment, constitute the circulation water route, and outlet pipe 13 is located the intermediate position of water-cooling piece 7, two the inlet tube is located respectively the both ends of water-cooling piece 7. In fig. 2, it can be seen that the first water inlet pipe 12 and the second water inlet pipe 14 correspond to the water holes 9 in one-to-one correspondence, the water outlets of the first water inlet pipe 12 and the second water inlet pipe 14 extend into the water holes 9, and the cooling water flows out of the water inlet pipes into the water holes 9, flows into the arc-shaped water channel 8 from the water holes 9, and then flows out through the water outlet pipe 13. In this embodiment, the joints of the arc-shaped water channel 8 and the arc-shaped water channel 8 with the two water inlet pipes and the water outlet pipe 13 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 7 is detachably and fixedly installed in the cavity 5, in the embodiment, installation bosses 10 are processed on two sides of the water cooling block 7, first threaded holes 11 are formed in the installation bosses 10 and correspond to second threaded holes 6 formed in the side die frame 4, and installation bolts 15 penetrate through the first threaded holes 11 and the second threaded holes 6 to fix the water cooling block 7 and the side die frame 4 into a whole.
In other embodiments, the detachable fixed connection between the water cooling block 7 and the side form frame 4 may also be a fixed connection by means of a snap, a fixed key or a fixed pin.
Example 2:
example 2 differs from example 1 in that: the number of the water holes 9 in each water cooling block 7 is uneven, and the positions and the number of the hot junctions at the joints of the spokes and the wheel rims are different according to the design of spoke patterns of different wheels; the side forms 2 are divided into more than two, in the embodiment 2, as shown in fig. 6, the side forms are divided into 3, each side form 2 comprises the side form frame 4 and the water cooling blocks 7, the arc-shaped water channel 8 in each water cooling block 7 forms a circular ring surrounding the bead seat, water holes 9 extending to the hot junctions of the connecting parts of the spokes and the rims are formed in the positions, corresponding to the hot junctions of the spokes and the rims, of the arc-shaped water channel 8, and more than one water inlet pipe and one water outlet pipe 13 are arranged on each water cooling block 7 and connected with external water cooling equipment to form a circulating water path; the number of the water inlet pipes is equal to that of the water holes 9, the water outlets of the water inlet pipes are in one-to-one correspondence with the positions of the water holes 9, cooling water flows into the water holes 9 from the water inlet pipes, flows into the arc-shaped water channel 8 from the water holes 9 and then flows out through the water outlet pipe 13; as shown in fig. 6, one of the water cooling blocks 7 is provided with one of the water holes 9, one of the water inlet pipes and one of the water outlet pipes 13, and two of the water cooling blocks 7 are provided with two of the water holes 9, two of the water inlet pipes and one of the water outlet pipes 13. The rest is the same as in example 1 and will not be described in detail here.
The utility model discloses a wheel low pressure casting mould, the water-cooling block structure of side forms has been designed, annular water course has been processed on the water-cooling piece, water-cooling form has been realized, and bore the water hole in the position that corresponds the spoke thermal center, coolant just so can more add and be close to the die cavity face, make its cooling action to the thermal center strengthen, great reinforcing the cooling capacity, can be fast effectual take away the regional huge heat of thick big thermal center, the solidification rate of aluminium liquid has been improved, eliminate the shrinkage porosity, the appearance of shrinkage cavity defect, and simultaneously, the super-cooled rate has been strengthened, the crystalline grain tissue has been refined, the mechanical properties of wheel foreign steamer reason and tire bead seat position has been improved, casting production cycle also correspondingly has obvious shortening. In addition, the detachable fixed connection of side forms water cooling piece still can make into standard spare part on the side forms frame, is convenient for directly change, has avoided having reduced manufacturing cost because the water cooling piece damages the condition of scrapping whole mould.
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 low pressure casting wheel mould, includes top mould, die block and side forms, and top mould, die block and side forms have constituted mould cavity, its characterized in that jointly:
the side die comprises a side die frame and a water cooling block, and a cavity for placing the water cooling block is processed at the position of the side die, corresponding to the tire bead seat close to one side of the spoke, so that the side die frame is formed; 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.
2. The mold for the low-pressure casting of a wheel according to claim 1, wherein the water cooling block is provided with two water inlet pipes and one water outlet pipe, and is connected with external water cooling equipment to form a circulating water path; the water outlet pipe is located in the middle, and the two water inlet pipes are located at two ends of the water cooling block respectively.
3. The mold for the low-pressure casting of a wheel according to claim 1, wherein the water-cooling block is provided with more than one water inlet pipe and one water outlet pipe, and is 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.
4. A low pressure casting wheel mold as claimed in claim 1, wherein said side forms are divided into two or more pieces, each of which includes said side form frame and said water cooled block.
5. A low pressure casting wheel mold as in claim 1 wherein the upper and lower sides of the cavity are flat heat conducting surfaces; the upper side and the lower side of the water cooling block are flat heat conducting surfaces; the upper side and the lower side of the cavity are matched with the upper side and the lower side of the water cooling block to form a heat transfer structure.
6. A low pressure casting wheel mold as claimed in claim 5, wherein the flat heat conducting surface has a surface roughness Ra < 1.6.
7. A low pressure cast wheel mold as claimed in claim 1 wherein the water cooled block is removably fixedly mounted within the cavity.
8. The mold for low-pressure casting of a wheel as claimed in claim 7, wherein mounting bosses are formed on both sides of the water cooling block, first threaded holes are formed in the mounting bosses, second threaded holes are formed in the side die frame correspondingly, and mounting bolts penetrate through the first threaded holes and the second threaded holes to fix the water cooling block and the side die frame into a whole.
9. A low pressure casting wheel mold as claimed in claim 1, wherein the side form frame and the water cooled blocks are selected from steel 35CrMo, the side form frame is integrally formed by casting, and the water cooled blocks are formed by forging.
10. The low pressure casting wheel mold of any of claims 1-9, wherein the water cooled block is arcuate on both the front and rear sides, the water cooled block being in close proximity to the inner wall of the cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020163638.8U CN211990881U (en) | 2020-02-12 | 2020-02-12 | Low-pressure casting wheel mould |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020163638.8U CN211990881U (en) | 2020-02-12 | 2020-02-12 | Low-pressure casting wheel mould |
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| Publication Number | Publication Date |
|---|---|
| CN211990881U true CN211990881U (en) | 2020-11-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020163638.8U Active CN211990881U (en) | 2020-02-12 | 2020-02-12 | Low-pressure casting wheel mould |
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| CN (1) | CN211990881U (en) |
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- 2020-02-12 CN CN202020163638.8U patent/CN211990881U/en active Active
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