CN220901818U - Improved lost foam model for casting driving wheel hub - Google Patents
Improved lost foam model for casting driving wheel hub Download PDFInfo
- Publication number
- CN220901818U CN220901818U CN202322598579.3U CN202322598579U CN220901818U CN 220901818 U CN220901818 U CN 220901818U CN 202322598579 U CN202322598579 U CN 202322598579U CN 220901818 U CN220901818 U CN 220901818U
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- parting
- hole
- upper die
- casting
- annular
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- 238000005266 casting Methods 0.000 title claims abstract description 30
- 239000006260 foam Substances 0.000 title claims abstract description 21
- 230000002093 peripheral effect Effects 0.000 claims abstract description 38
- 240000009087 Crescentia cujete Species 0.000 claims abstract description 11
- 235000005983 Crescentia cujete Nutrition 0.000 claims abstract description 11
- 235000009797 Lagenaria vulgaris Nutrition 0.000 claims abstract description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 5
- 239000011159 matrix material Substances 0.000 claims description 6
- 239000000758 substrate Substances 0.000 claims description 5
- 210000001503 joint Anatomy 0.000 abstract description 12
- 238000000034 method Methods 0.000 abstract description 8
- 239000000853 adhesive Substances 0.000 abstract description 4
- 230000001070 adhesive effect Effects 0.000 abstract description 4
- 230000007547 defect Effects 0.000 description 4
- 238000010114 lost-foam casting Methods 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 239000002861 polymer material Substances 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- 244000035744 Hura crepitans Species 0.000 description 1
- 239000006004 Quartz sand Substances 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000003618 dip coating Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000010115 full-mold casting Methods 0.000 description 1
- 238000009499 grossing Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 229910001338 liquidmetal Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
Landscapes
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The utility model discloses an improved lost foam model for casting a driving wheel hub. The device of the utility model comprises: the upper die and the lower die are combined through splicing and bonding, and the annular parting outer wall with holes is connected with the central circular inner wall of the upper die main body in a bonding mode; radial protruding blocks are arranged on the annular parting outer wall with the holes; the annular parting with holes is uniformly distributed with the parting of the hole bodies in the circumferential direction; the center hole of the lower die is matched with the annular parting excircle with the hole; the upper die main body is provided with peripheral convex points which are in a water drop shape or a calabash shape; the lower die is provided with a peripheral groove, and the position and the shape and the size of the peripheral groove are matched with those of the peripheral convex points; the upper die main body is provided with an inner peripheral bulge loop which is in a drop shape or a calabash shape; the lower die is provided with an inner periphery through hole, and the position and the shape size of the inner periphery through hole are matched with those of the inner periphery convex ring. The utility model can reduce the adhesive joint, reduce the bonding error, simplify the butt joint process, improve the butt joint speed and improve the product quality.
Description
Technical Field
The utility model relates to the technical field of lost foam casting, in particular to an improved lost foam model for casting a driving wheel hub.
Background
The lost foam casting, also called full mold casting, is a novel casting method for producing castings by using foamed plastics, such as EPS, STMMA or EPMMA, or polymer materials to bond and combine into a full mold which has the same structure and size as the target parts, through dip-coating fireproof paint which can play roles in strengthening, smoothing and ventilation, then after drying, burying in dry quartz sand, through three-dimensional vibration molding, pouring a casting sand box into molten metal liquid in a negative pressure state, so that the polymer material model is heated, gasified and extracted, and then liquid metal is substituted for the one-step molding casting novel process formed after cooling and solidification. In the lost foam casting process, each link has a great influence on the quality of the lost foam casting, and the quality of the casting can be greatly improved by improving the process of each link.
The bonding combination of the lost foam belongs to the first step of casting, and is also an important step, if the bonding seams are too many, on one hand, the bonding workload is large, on the other hand, the bonding accuracy is reduced, and further, the bonding error is increased, the occurrence probability of casting defects is increased, the product quality is reduced, and the economic cost is increased.
In the prior art, the mode of bonding an upper die and a lower die is generally adopted for model combination, a bolt through hole is required to be arranged at the position near the center of the hub for mounting the hub, a circle of circular thin wall holes are arranged near the center of the upper die for casting the bolt through hole, a circle of circular through holes are arranged at the corresponding position of the lower die, and when in bonding, the circular through holes are inserted into the cylindrical holes for bonding, and more bonding seams are formed between the circular thin wall holes and the circular through holes; the periphery of the hub is provided with a circle of reinforcing ribs, the periphery of the upper die is provided with a circle of small cylindrical bulges, the periphery of the lower die is provided with a circle of small circular grooves at corresponding positions, and the small cylindrical bulges are inserted into the small circular grooves and are bonded during combination; and a circle of through holes are arranged between the periphery of the hub and the central position and used for reducing the overall weight of the hub, for the circle of through holes, a circle of large circular thin-wall holes are arranged on an upper die, a circle of large circular through holes are arranged on a corresponding position of a lower die, and when the upper die and the lower die are aligned, at least two groups of circular thin-wall holes and cylindrical holes or two groups of small cylindrical protrusions and small circular grooves are required to be aligned, so that the alignment positions of the upper die and the lower die can be completely determined.
The conventional parting combination mode has the defects that the round thin wall holes and the round through holes corresponding to the bolt through holes are required to be bonded one by one, the bonding workload is large, the parting is more, the bonding seams are more, and the bonding error is relatively increased; moreover, the through holes in the main body and the butt joint between the reinforcing ribs are all round, and the bonding position can be determined only by aligning at least two groups of round thin-wall holes and cylindrical holes or two groups of small cylindrical protrusions and small circular grooves during butt joint, so that the workload is large and the labor cost is high.
In order to solve the technical problems, the utility model provides an improved lost foam model for casting a driving wheel hub.
Disclosure of Invention
The utility model aims to overcome the defects of the prior art, and provides an improved lost foam model for casting a driving wheel hub, which can reduce adhesive joints, reduce adhesive errors, simplify a butt joint process, improve the butt joint speed, reduce the workload, reduce the labor cost and improve the product quality.
In order to achieve the above object, the present utility model proposes the following technical scheme:
An improved lost foam model for casting a driving wheel hub comprises an upper die and a lower die, wherein the upper die and the lower die are combined together in a splicing and bonding mode;
The upper die comprises an upper die main body and a perforated annular parting, the perforated annular parting is arranged at the center circle of the upper die main body, and the perforated annular parting outer wall is connected with the inner wall of the center circle of the upper die main body in a bonding mode; the annular parting with holes is characterized in that a radial protruding block is arranged on the annular parting with holes outer wall, a radial groove is formed in the corresponding position of the central circular inner wall of the upper die main body, and the radial groove is matched with the radial protruding block, so that when the annular parting with holes is matched with the upper die main body, the radial protruding block is clamped into the radial groove to determine the matching position of the annular parting with holes and the upper die main body, and the matching speed is improved;
The annular parting with holes is uniformly distributed with single-hole parting in the circumferential direction and is used for casting screw through holes;
The center hole of the lower die is matched with the annular parting excircle with holes, and when the upper die and the lower die are bonded, the center hole of the lower die is sleeved on the annular parting periphery with holes and bonded with each other;
the upper die body is provided with peripheral protruding points, and the peripheral protruding points are in a water drop shape or a calabash shape;
The lower die is provided with a peripheral groove, the position and the shape and the size of the peripheral groove are matched with those of the peripheral raised points, and when the upper die and the lower die are combined, the peripheral raised points are clamped into the peripheral groove for bonding;
The upper die body is provided with an inner periphery convex ring which is in a drop shape or a calabash shape;
the lower die is provided with an inner periphery through hole, the position and the shape and the size of the inner periphery through hole are matched with those of the inner periphery convex ring, and when the upper die and the lower die are combined, the inner periphery convex ring is clamped into the inner periphery through hole for bonding;
The outer protruding points and the inner protruding rings are in a drop shape or a calabash shape, when the upper die and the lower die are combined, the positions of the upper die and the lower die can be determined by aligning one outer protruding point of the upper die with the outer groove or aligning one inner protruding ring with the inner through hole, so that the combining speed is improved, the working efficiency is improved, and the accuracy is improved.
Preferably, the small diameter end of the peripheral bump is directed inwardly.
Preferably, the small diameter end of the inner raised ring is directed inwardly.
Preferably, the single-hole parting is connected and fixed on the annular parting with holes in a plugging and bonding mode.
Preferably, the annular parting with holes comprises a single-hole parting and an annular matrix, wherein circular grooves are uniformly formed in the annular matrix in the circumferential direction, positioning grooves are formed in the circular grooves, and the positioning grooves are arranged in the radial direction; the single-hole parting is in a circular tube shape, and a positioning block matched with the positioning groove is arranged in the single-hole parting along the radial extension direction; the circular groove of the annular matrix is internally provided with a small through hole, the diameter of the small through hole is the same as the parting inner diameter of the single hole, and the small through hole and the parting of the single hole jointly form a bolt through hole.
Preferably, the height of the single hole parting is greater than the depth of the circular groove.
Preferably, the depth of the positioning groove is equal to the depth of the circular groove.
Preferably, the height of the positioning block is equal to the depth of the positioning groove.
Preferably, the positioning groove extends inwards.
Preferably, the height of the single-hole parting is 1.2-1.5 times of the depth of the circular groove.
Specifically, the annular parting with holes is an independent standardized parting, the annular matrixes are provided with the number of circular grooves according to the number of the bolt through holes, the outer diameter and the inner diameter of each annular matrix are the same, the number and the distribution positions of the circular grooves are different, and the corresponding annular matrixes are selected according to the actual application condition of each driving wheel hub; the single-hole parting is a standardized small part, and a corresponding number of single-hole parting is bonded on each annular substrate.
Before the assembly of the lost foam, the whole annular parting with holes is arranged on the center circle of the upper die main body and is bonded, then the assembly of the upper die and the lower die is carried out, the assembly position can be confirmed by only aligning one inner peripheral bulge loop of the upper die with the inner peripheral through hole of the lower die or aligning one outer peripheral bulge loop of the upper die with the outer peripheral groove of the lower die, then the central hole of the lower die is sleeved on the annular parting with holes and is bonded with each other at the same time, and the complete driving wheel hub lost foam model is formed, and the subsequent casting process can be carried out.
The utility model has the beneficial effects that:
According to the utility model, the upper die is subjected to parting treatment, the annular parting with holes is integrated, the single-hole parting is uniformly distributed on the annular parting with holes, and when the die is closed, only the central hole of the lower die is sleeved on the periphery of the annular parting with holes, so that the parting scheme is optimized, the parting is simple, the bonding seam is reduced, the bonding procedure is simplified, the butt joint speed is improved, the efficiency is improved, and meanwhile, the follow-up demolding is also facilitated.
According to the utility model, by arranging the peripheral protruding points of the inner peripheral protruding ring in a drop shape or a calabash shape, only one group of peripheral protruding points and peripheral grooves or the inner peripheral protruding ring and the inner peripheral through holes are required to be aligned when the upper die and the lower die are combined, so that the butt joint process is simplified, the butt joint speed is improved, the workload is reduced, the labor cost is reduced, and the product quality is improved.
By adopting the scheme, the utility model can reduce the adhesive joint, reduce the bonding error, simplify the butt joint process, improve the butt joint speed, reduce the workload, reduce the labor cost, reduce the casting defects and improve the product quality.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings used in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic view of the overall structure of the present utility model.
Fig. 2 is a schematic view of the top structure of the upper die of the present utility model.
Fig. 3 is a schematic view of the bottom structure of the upper die of the present utility model.
Fig. 4 is a schematic view of the top structure of the lower die of the present utility model.
Fig. 5 is a bottom view of the overall structure of the present utility model.
Fig. 6 is a cross-sectional structural view at A-A in fig. 5.
Fig. 7 is a schematic structural view of the perforated ring parting.
Fig. 8 is an exploded view of fig. 7.
In the figure, a 1-upper die and a 2-lower die;
11-upper die main body, 12-annular parting with holes, 13-peripheral raised points, 14-inner peripheral raised rings, 121-single-hole parting, 122-annular matrix, 123-circular grooves, 124-positioning grooves and 125-positioning blocks;
21-central hole, 22-peripheral groove, 23-inner peripheral through hole.
Description of the embodiments
In order to make the technical problems, technical schemes and beneficial effects to be solved more clear, the utility model is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.
It will be understood that when an element is referred to as being "mounted" or "disposed" on another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.
It is to be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are merely for convenience in describing and simplifying the description based on the orientation or positional relationship shown in the drawings, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus are not to be construed as limiting the utility model.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.
As shown in fig. 1-6, an improved lost foam model for casting a driving wheel hub comprises an upper die 1 and a lower die 2, wherein the upper die 1 and the lower die 2 are combined together in a splicing and bonding mode;
The upper die 1 comprises an upper die main body 11 and a perforated annular parting 12, wherein the perforated annular parting 12 is arranged at the center circle of the upper die main body 11, and the outer wall of the perforated annular parting 12 is connected with the inner wall of the center circle of the upper die main body 11 in a bonding mode;
The outer wall of the annular parting 12 with holes is provided with a radial protruding block, the corresponding part of the inner circular wall of the center of the upper die main body 11 is provided with a radial groove, and the radial groove is matched with the radial protruding block, so that when the annular parting 12 with holes is matched with the upper die main body, the matching position of the annular parting 12 with holes and the upper die main body 11 is determined by clamping the radial protruding block into the radial groove, and the matching speed is further improved;
the single-hole parting 121 is uniformly distributed on the annular parting 12 with holes in the circumferential direction and is used for casting screw through holes;
The center hole of the lower die 2 is matched with the outer circle of the annular parting 12 with holes, and when the upper die 1 and the lower die 2 are bonded, the center hole of the lower die 2 is sleeved on the periphery of the annular parting 12 with holes and is bonded with each other;
the upper die main body 11 is provided with a peripheral protruding point 13, and the peripheral protruding point 13 is in a water drop shape or a calabash shape;
The lower die 2 is provided with a peripheral groove 22, the position and the shape and the size of the peripheral groove 22 are matched with those of the peripheral raised point 13, and when the upper die 1 and the lower die 2 are combined, the peripheral raised point 13 is clamped into the peripheral groove 22 for bonding;
The upper die main body 11 is provided with an inner periphery convex ring 14, and the inner periphery convex ring 14 is in a water drop shape or a calabash shape;
The lower die 2 is provided with an inner periphery through hole 23, the position and the shape and the size of the inner periphery through hole 23 are matched with those of the inner periphery convex ring 14, and when the upper die 1 and the lower die 2 are combined, the inner periphery convex ring 14 is clamped into the inner periphery through hole 23 for bonding;
The outer protruding point 13 and the inner protruding ring 14 are in a drop shape or a calabash shape, when the upper die and the lower die are combined, the combined position of the upper die 1 and the lower die 2 can be determined by aligning one outer protruding point 13 of the upper die 1 with the outer groove 22 or aligning one inner protruding ring 14 with the inner through hole 23, so that the combined speed is improved, the working efficiency is improved, and the accuracy is improved.
As shown in fig. 7-8, the annular parting 12 with holes comprises a single-hole parting 121 and an annular substrate 122, wherein circular grooves 123 are uniformly formed in the annular substrate 122 in the circumferential direction, positioning grooves 124 are formed in the circular grooves 123, and the positioning grooves 124 are arranged in the radial direction;
The single-hole parting 121 is in a circular tube shape, and a positioning block 125 matched with the positioning groove 124 is arranged on the single-hole parting 121 in a radial extending manner; the circular groove 123 of the annular base 122 is internally provided with a small through hole, the diameter of the small through hole is the same as the parting inner diameter of the single hole, and the small through hole and the parting of the single hole jointly form a bolt through hole.
The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the utility model.
Claims (10)
1. The utility model provides an improved generation lost foam pattern for casting drive wheel hub, includes mould and lower mould, and mould and lower mould are in the same place through the mode of grafting bonding on going up, its characterized in that: the upper die comprises an upper die main body and a perforated annular parting, the perforated annular parting is arranged at the center circle of the upper die main body, and the perforated annular parting outer wall is connected with the inner wall of the center circle of the upper die main body in a bonding mode; the annular parting outer wall with the holes is provided with radial protruding blocks, the corresponding part of the central circular inner wall of the upper die main body is provided with radial grooves, and the radial grooves are matched with the radial protruding blocks; the annular parting with holes is uniformly distributed with hole body parting along the circumferential direction; the center hole of the lower die is matched with the annular parting excircle with the hole; the upper die body is provided with peripheral protruding points, and the peripheral protruding points are in a water drop shape or a calabash shape; the lower die is provided with a peripheral groove, and the position and the shape and the size of the peripheral groove are matched with those of the peripheral convex point; the upper die body is provided with an inner periphery convex ring which is in a drop shape or a calabash shape; the lower die is provided with an inner periphery through hole, and the position and the shape and the size of the inner periphery through hole are matched with those of the inner periphery convex ring.
2. An improved lost foam pattern for casting a drive wheel hub as set forth in claim 1 wherein: the small diameter end of the peripheral convex point faces inwards.
3. An improved lost foam pattern for casting a drive wheel hub as set forth in claim 1 wherein: one end of the small diameter of the inner circumference bulge loop faces inwards.
4. An improved lost foam pattern for casting a drive wheel hub as set forth in claim 1 wherein: the single-hole parting is fixedly connected to the annular parting with holes in a plugging and bonding mode.
5. An improved lost foam pattern for casting a drive wheel hub in accordance with claim 4, wherein: the annular parting with holes comprises a single-hole parting body and an annular substrate, wherein circular grooves are uniformly formed in the annular substrate in the circumferential direction, positioning grooves are formed in the circular grooves, and the positioning grooves are arranged in the radial direction; the single-hole parting is in a circular tube shape, and a positioning block matched with the positioning groove is arranged in the single-hole parting along the radial extension direction; the circular groove of the annular matrix is internally provided with a small through hole, and the diameter of the small through hole is the same as the parting inner diameter of the single hole.
6. An improved lost foam pattern for casting a drive wheel hub in accordance with claim 5, wherein: the height of the single-hole parting is larger than the depth of the circular groove.
7. An improved lost foam pattern for casting a drive wheel hub in accordance with claim 5, wherein: the depth of the positioning groove is equal to that of the circular groove.
8. An improved lost foam pattern for casting a drive wheel hub in accordance with claim 5, wherein: the height of the positioning block is equal to the depth of the positioning groove.
9. An improved lost foam pattern for casting a drive wheel hub in accordance with claim 5, wherein: the positioning groove extends inwards.
10. An improved lost foam pattern for casting a drive wheel hub in accordance with claim 6, wherein: the height of the single-hole parting is 1.2-1.5 times of the depth of the circular groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322598579.3U CN220901818U (en) | 2023-09-25 | 2023-09-25 | Improved lost foam model for casting driving wheel hub |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322598579.3U CN220901818U (en) | 2023-09-25 | 2023-09-25 | Improved lost foam model for casting driving wheel hub |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220901818U true CN220901818U (en) | 2024-05-07 |
Family
ID=90912814
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322598579.3U Active CN220901818U (en) | 2023-09-25 | 2023-09-25 | Improved lost foam model for casting driving wheel hub |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220901818U (en) |
-
2023
- 2023-09-25 CN CN202322598579.3U patent/CN220901818U/en active Active
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