CN216027939U - Hollow casting structure for eliminating aluminum alloy wheel thermal junctions - Google Patents
Hollow casting structure for eliminating aluminum alloy wheel thermal junctions Download PDFInfo
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- CN216027939U CN216027939U CN202122690534.XU CN202122690534U CN216027939U CN 216027939 U CN216027939 U CN 216027939U CN 202122690534 U CN202122690534 U CN 202122690534U CN 216027939 U CN216027939 U CN 216027939U
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Abstract
The utility model relates to the technical field of wheel hub machining, in particular to a hollow casting structure for eliminating thermal junctions of aluminum alloy wheels, which comprises a bottom die, wherein a plurality of side dies are detachably connected to the periphery of the bottom die, an upper die is detachably connected to the upper side of the bottom die, sand core assemblies are arranged among the bottom die, the side dies and the upper die, a concave part is formed in the top of the bottom die and matched with the sand core assemblies, each sand core assembly comprises a plurality of bosses which are circumferentially arranged at equal intervals, and connecting parts are fixedly connected among the bosses. In the casting process, the boss of the sand core component is over against the wheel hot spot part, so that the wall thickness of a casting at the hot spot part is reduced, and the purpose of eliminating the aluminum alloy wheel hot spot can be achieved.
Description
Technical Field
The utility model relates to the technical field of hub machining, in particular to a hollow casting structure for eliminating a thermal joint of an aluminum alloy wheel.
Background
The wheel acts as a safety element of the vehicle chassis, the internal mass of which is closely related to the safety of the driver. In the structure of an aluminum alloy automobile wheel product, the joint parts of a rim and a spoke are provided with thermal junctions with different degrees. Due to the limitation of the mold stripping direction of the casting, the reduction of the wall thickness of the hot spot by material drawing is difficult to realize. Due to the existence of the thermal section, on one hand, the tendency of shrinkage porosity and shrinkage cavity is increased, the difficulty of process adjustment during casting production is increased, and the thermal section is a main reason of casting procedure waste; on the other hand, the lightweight design of the product and the improvement of the mechanical property of the spoke are limited. The sand core is embedded in the hot spot part by utilizing the technology of placing the sand core in the die, so that the equal wall thickness structure of the hot spot part is realized, and the aim of eliminating the hot spot is fulfilled. The technology can obviously reduce the weight of a product with a wide spoke structure, can improve the elongation of the spoke so as to improve the overall strength of the wheel, does not influence the appearance of the surface A of the product, and has wide application prospect. In view of the above problems in the prior art, there is a need for a hollow casting structure that eliminates the thermal joints of aluminum alloy wheels.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a hollow casting structure for eliminating the thermal section of an aluminum alloy wheel, which aims to solve the problems and achieve the purpose of eliminating the thermal section of the aluminum alloy wheel.
In order to achieve the purpose, the utility model provides the following scheme: the utility model provides an eliminate hollow casting structure of aluminum alloy wheel heat festival, includes the die block, the die block can be dismantled all around and be connected with a plurality of side forms, the die block top can be dismantled and be connected with the mould, the die block the side forms with be provided with sand core assembly between the last mould, the concave part has been seted up at the die block top, the concave part with sand core assembly looks adaptation, sand core assembly includes a plurality of boss, and is a plurality of the boss is equidistant setting of circumference, and is a plurality of the rigid coupling has connecting portion between the boss.
Preferably, the connecting portion includes a plurality of reinforcing portions, each reinforcing portion is of an arc-shaped structure, and two ends of each reinforcing portion are fixedly connected with two adjacent boss side portions.
Preferably, the connecting portion further includes at least two weak portions fixedly connected to the middle portion of the reinforcing portion, the weak portions are of arc-shaped structures, the cross-sectional size of the weak portions is smaller than that of the reinforcing portion, and two ends of the weak portions are fixedly connected to the middle portion of the reinforcing portion.
Preferably, the concave part is including seting up a plurality of core print grooves at die block top, core print groove quantity with rib quantity is the same, the core print groove with rib shape phase-match, rib inlays to be established in the core print groove, a plurality of spoke recesses have radially been seted up at the die block top, the quantity of spoke recess with the quantity of boss is the same, the shape of spoke recess with the shape phase-match of boss, the boss inlays to be established in the spoke recess, the boss with be equipped with spacing portion between the spoke recess.
Preferably, spacing portion includes the spacing groove, the spacing groove is seted up the boss is close to die block one side, spacing groove cooperation contact is connected with spacing arch, spacing protruding rigid coupling is in spoke grooved underside.
Preferably, the plurality of bosses face the side portion of the bottom die.
The utility model has the following technical effects: according to the utility model, the concave part is formed on the existing bottom die and is matched with the sand core assembly, the sand core assembly is removed after casting is finished, and the equal wall thickness structure of the hot spot part is realized by the sand core assembly, so that the purpose of eliminating the hot spot is achieved, and the weight of the wheel hub is reduced. The boss and the connecting portion jointly form a sand core assembly, the sand core assembly is embedded into the concave portion of the bottom die before casting, and the sand core assembly is cleaned after casting and demolding.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of a bottom mold and sand core assembly according to the present invention;
FIG. 3 is an enlarged view of a portion A of FIG. 2;
FIG. 4 is a schematic view of a portion of the configuration of the sand core assembly;
FIG. 5 is a top view of the sand core assembly of the present invention;
FIG. 6 is a top view of a sand core assembly of example 2 of the present invention;
wherein, 1, side forms; 2. bottom die; 3. a sand core assembly; 4. an upper die; 201. a spoke recess; 202. a core print recess; 301. a boss; 302. a reinforcing portion; 303. a weakened portion; 304. a limiting groove; 203. and a limiting bulge.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, 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 invention.
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.
Example 1
Referring to fig. 1-5, this embodiment provides an eliminate hollow casting structure of aluminum alloy wheel heat festival, including die block 2, die block 2 can be dismantled all around and be connected with a plurality of side forms 1, die block 2 top can be dismantled and be connected with mould 4, die block 2, be provided with sand core assembly 3 between side forms and the last mould 4, the concave part has been seted up at die block 2 top, concave part and 3 looks adaptations of sand core assembly, sand core assembly 3 includes a plurality of boss 301, a plurality of boss 301 are the equidistant setting of circumference, the rigid coupling has connecting portion between a plurality of boss 301. Side forms 1, die block 2 and last mould 4 are prior art, do not do the repeated description here, and the concave part is seted up on current die block 2 to this embodiment, and the concave part cooperatees with sand core assembly 3, gets rid of sand core assembly 3 after the casting finishes, and sand core assembly 3 has realized the equal wall thickness structure at thermal center position to reach the purpose of eliminating the thermal center, reduced wheel hub's weight simultaneously. Boss 301 and connecting portion constitute sand core subassembly 3 jointly, inlay sand core subassembly 3 before the casting and establish in the concave part of die block 2, clearance after the casting drawing of patterns falls sand core subassembly 3.
According to a further optimized scheme, the connecting portion comprises a plurality of reinforcing portions 302, the reinforcing portions 302 are of circular arc-shaped structures, and two ends of each reinforcing portion 302 are fixedly connected with the edge portions of the two adjacent bosses 301. The reinforcing portion 302 is a core head portion of the sand core, and plays a role of fixing the sand core assembly 3 during casting.
In a further optimized scheme, the connecting part further comprises at least two weak parts 303 fixedly connected to the middle of the reinforcing part 302, the weak parts 303 are of arc-shaped structures, the sectional size of the weak parts 303 is smaller than that of the reinforcing part 302, and two ends of each weak part 303 are fixedly connected with the middle of the same reinforcing part 302. In the small-specification wheel hub product, the sand core component 3 is integrally installed during installation, so that time and labor are saved. The sand core assembly 3 with the weakened portion 303 is applied.
Further optimize the scheme, the concave part is including seting up a plurality of core print grooves 202 at die block 2 top, core print groove 202 quantity is the same with reinforcing part 302 quantity, core print groove 202 and reinforcing part 302 shape phase-match, reinforcing part 302 inlays to be established in core print groove 202, a plurality of spoke recesses 201 have radially been seted up at die block 2 top, the quantity of spoke recesses 201 is the same with the quantity of boss 301, the shape of spoke recesses 201 and the shape phase-match of boss 301, boss 301 inlays to be established in spoke recesses 201, be equipped with spacing portion between boss 301 and the spoke recesses 201. The core print groove 202 and the spoke groove 201 are used for fitting the boss 301 and the reinforcing part 302, and displacement after the boss 301 and the reinforcing part 302 are installed is prevented.
Further optimize the scheme, spacing portion includes spacing groove 304, and spacing groove 304 sets up in boss 301 and is close to die block 2 one side, and spacing groove 304 cooperation contact is connected with spacing arch 203, and spacing arch 203 rigid coupling is in spoke recess 201 bottom surface. The cooperation of the stop protrusion 203 with the stop slot 304 allows for more accurate positioning of the process of setting the sand core assembly 3.
In a further optimized scheme, the plurality of bosses 301 face the edge of the bottom die 2.
The working process of the embodiment is as follows: the sand core component 3 is arranged in the concave part of the bottom die 2, the boss 301 is embedded in the spoke groove 201, the reinforcing part 302 is embedded in the core seat groove 202, after the sand core component 3 is arranged, the side die 1 and the upper die 4 are folded, then pouring is carried out, and after demoulding is finished, sand can be removed through high temperature or vibration.
Example 2
Referring to fig. 6, the difference between this embodiment and embodiment 1 is that the sand core assembly 3 does not include the weak portion 303, and this embodiment is applied to a large-sized hub product, and before use, the weak portion 303 is broken and removed, so that the whole sand core assembly 3 is divided into a plurality of sections, and then the plurality of sections of sand core assemblies 3 are respectively installed in the concave portions of the bottom die 2.
In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, are merely for convenience of description of the present invention, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.
The above-described embodiments are merely illustrative of the preferred embodiments of the present invention, and do not limit the scope of the present invention, and various modifications and improvements of the technical solutions of the present invention can be made by those skilled in the art without departing from the spirit of the present invention, and the technical solutions of the present invention are within the scope of the present invention defined by the claims.
Claims (5)
1. The utility model provides an eliminate hollow casting structure of aluminum alloy wheel heat festival, includes die block (2), die block (2) can be dismantled all around and be connected with a plurality of side forms (1), die block (2) top can be dismantled and be connected with mould (4), die block (2) side forms (1) with go up and be provided with sand core component (3), its characterized in that between mould (4): the concave part has been seted up at die block (2) top, the concave part with psammitolite subassembly (3) looks adaptation, psammitolite subassembly (3) include a plurality of boss (301), and are a plurality of boss (301) are circumference equidistant setting, and are a plurality of the rigid coupling has connecting portion between boss (301).
2. The hollow cast structure for eliminating the thermal knuckle of the aluminum alloy wheel as claimed in claim 1, wherein: the connecting portion comprises a plurality of reinforcing portions (302), each reinforcing portion (302) is of an arc-shaped structure, and two ends of each reinforcing portion (302) are fixedly connected with two adjacent side portions of the boss (301).
3. The hollow cast structure for eliminating the thermal knuckle of the aluminum alloy wheel as claimed in claim 2, wherein: connecting portion still include two at least rigid couplings weak part (303) at rib (302) middle part, weak part (303) are circular-arc structure, weak part (303) cross sectional dimension is less than rib (302) cross sectional dimension, weak part (303) both ends with same rib (302) middle part rigid coupling.
4. The hollow cast structure for eliminating the thermal knuckle of the aluminum alloy wheel as claimed in claim 2, wherein: the concave part is including offering a plurality of core print recesses (202) at die block (2) top, core print recesses (202) quantity with strengthen portion (302) quantity the same, core print recesses (202) with strengthen portion (302) shape phase-match, strengthen portion (302) inlay and establish in core print recesses (202), a plurality of spoke recesses (201) have radially been seted up at die block (2) top, the quantity of spoke recesses (201) with the quantity of boss (301) is the same, the shape of spoke recesses (201) with the shape phase-match of boss (301), boss (301) inlay and establish in spoke recesses (201).
5. The hollow cast structure for eliminating the thermal knuckle of the aluminum alloy wheel as claimed in claim 1, wherein: the bosses (301) face the edge of the bottom die (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122690534.XU CN216027939U (en) | 2021-11-05 | 2021-11-05 | Hollow casting structure for eliminating aluminum alloy wheel thermal junctions |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122690534.XU CN216027939U (en) | 2021-11-05 | 2021-11-05 | Hollow casting structure for eliminating aluminum alloy wheel thermal junctions |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216027939U true CN216027939U (en) | 2022-03-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122690534.XU Active CN216027939U (en) | 2021-11-05 | 2021-11-05 | Hollow casting structure for eliminating aluminum alloy wheel thermal junctions |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216027939U (en) |
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2021
- 2021-11-05 CN CN202122690534.XU patent/CN216027939U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: BAODING LIZHONG DONG'AN LIGHT ALLOY PARTS CO.,LTD. Assignor: BAODING LIZHONG WHEEL MANUFACTURING Co.,Ltd. Contract record no.: X2023990000004 Denomination of utility model: A hollow casting structure for eliminating hot spots of aluminum alloy wheels Granted publication date: 20220315 License type: Common License Record date: 20230112 |