CN221087226U - Die casting die structure for mounting cylinder inserts in high-pressure casting - Google Patents
Die casting die structure for mounting cylinder inserts in high-pressure casting Download PDFInfo
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- CN221087226U CN221087226U CN202322893296.1U CN202322893296U CN221087226U CN 221087226 U CN221087226 U CN 221087226U CN 202322893296 U CN202322893296 U CN 202322893296U CN 221087226 U CN221087226 U CN 221087226U
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- insert
- die
- cylinder
- annular groove
- positioning column
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- 238000004512 die casting Methods 0.000 title claims abstract description 29
- 238000005266 casting Methods 0.000 title claims abstract description 18
- 235000017166 Bambusa arundinacea Nutrition 0.000 claims description 7
- 235000017491 Bambusa tulda Nutrition 0.000 claims description 7
- 241001330002 Bambuseae Species 0.000 claims description 7
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims description 7
- 229910000831 Steel Inorganic materials 0.000 claims description 7
- 239000011425 bamboo Substances 0.000 claims description 7
- 239000010959 steel Substances 0.000 claims description 7
- 150000001875 compounds Chemical class 0.000 claims description 2
- 238000009434 installation Methods 0.000 claims description 2
- 229910000838 Al alloy Inorganic materials 0.000 abstract description 31
- 238000000465 moulding Methods 0.000 abstract description 7
- 229910052782 aluminium Inorganic materials 0.000 description 11
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 11
- 239000007788 liquid Substances 0.000 description 10
- 239000000956 alloy Substances 0.000 description 5
- 229910052751 metal Inorganic materials 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000002093 peripheral effect Effects 0.000 description 4
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 229910001018 Cast iron Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
Landscapes
- Cylinder Crankcases Of Internal Combustion Engines (AREA)
Abstract
The utility model relates to the technical field of high-pressure casting, and particularly discloses a die casting die structure for mounting barrel inserts in high-pressure casting. The technical scheme is used for solving the problem that the cylinder insert is easy to displace when the aluminum alloy product with the cylinder insert is subjected to die casting molding in the prior art.
Description
Technical Field
The utility model relates to the technical field of high-pressure casting, in particular to a die casting die structure for mounting barrel inserts in high-pressure casting.
Background
With the improvement of the performance requirements of metal parts (or called metal products) in the market, the original metal products made of a plurality of cast iron materials are changed into aluminum alloy materials based on the factors of advocating light weight, improving heat dissipation performance, reducing electromagnetic interference and the like, such as an engine end cover and an engine shell, blind holes are often required to be arranged on the metal products so as to facilitate the installation of other parts on the aluminum alloy products or the connection of the other parts with the aluminum alloy products, but if the blind holes are directly formed on the aluminum alloy products with low steel structure hardness and low wear resistance, the wear resistance and the hardness of the blind holes cannot meet the design requirements; it is common practice in the art to solve this problem to embed steel cylinder type inserts into the aluminum alloy structure to form blind holes in the aluminum alloy product.
When the aluminum alloy product is manufactured, in order to ensure that the steel insert is tightly matched with the aluminum alloy material, the cylinder insert is often sleeved on a positioning column of the fixed die in a clearance fit mode through a self-contained blind hole before the aluminum alloy product is cast at high pressure (as shown in the attached figure 1, the clearance fit is used for ensuring smooth demolding after the molding is finished), and then the cylinder insert and the aluminum alloy product are cast together along with the high-pressure casting. However, after the cylinder steel insert is placed, aluminum is injected into a cavity of a die-casting die at high pressure in a high-pressure casting process, and the cylinder insert is in clearance fit with the positioning column, so that the cylinder insert is easy to move along the positioning column under the extrusion influence of aluminum liquid extruded between the fixed die and the cylinder insert, and finally, the position of the cylinder insert in a product does not meet design requirements after die-casting molding of an aluminum alloy product is caused.
Disclosure of utility model
The utility model aims to provide a die casting die structure for mounting a cylinder insert in high-pressure casting, which solves the problem that the cylinder insert is easy to displace when an aluminum alloy product with the cylinder insert is die-cast and molded in the prior art.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
The utility model provides a die casting die structure that section of thick bamboo class mold insert was installed usefulness in high pressure casting, includes movable mould and cover half, forms the fashioned die cavity of product after movable mould and the cover half compound die, is fixed with the reference column on the cover half, be equipped with the ring channel that is used for holding section of thick bamboo class mold insert on the cover half, the reference column is lived to the ring channel, ring channel and section of thick bamboo class mold insert interference fit, the blind hole actual length of section of thick bamboo class mold insert is greater than design length, the degree of depth of ring channel equals the difference of blind hole actual length and design length.
The principle and the advantages of the scheme are as follows: when the scheme is adopted, the cylinder type insert with the actual length larger than the design length is inserted into the positioning column by adopting the blind hole, the cylinder type insert is inserted into the annular groove, the part of the cylinder type insert exceeding the design length is just inserted into the annular groove, and the position size of the blind hole extending into the aluminum alloy product is ensured to meet the design requirement. In the die casting process, the cylinder type insert is in interference fit with the annular groove at the part exceeding the design length, so that the cylinder type insert is difficult to displace on the positioning column, in addition, the cylinder type insert is inserted into the annular groove, if the aluminum liquid entering the cavity is required to push the cylinder type insert to move, the aluminum liquid firstly enters into the peripheral gap between the annular groove and the cylinder type insert and then enters into the gap between the cylinder type insert and the contact end face of the annular groove, and then the cylinder type insert can be pushed to move, however, the annular groove is positioned in the fixed die and is in interference fit with the cylinder type insert, even if the aluminum liquid has a trend of moving towards the peripheral gap between the annular groove and the cylinder type insert under high pressure, the aluminum liquid cannot smoothly enter due to the interference fit, and further, the aluminum liquid is completely ensured not to push the cylinder type insert to move along the positioning column, and the position accuracy of the cylinder type insert on a molded product after die casting is completed is ensured.
Preferably, as a modification, the groove depth of the annular groove is 3-5mm.
The beneficial effects are that: by controlling the depth of the annular groove, the problem that the demolding difficulty is affected due to overlarge groove depth is avoided.
Preferably, as an improvement, the distance between the top end of the positioning column extending into the cavity and the bottom surface of the annular groove is smaller than the length of the blind hole on the cylinder insert. So as to ensure that the cylinder insert can always ensure that the end face of the cylinder insert contacts with the bottom face of the annular groove when the cylinder insert is inserted into the positioning column and the annular groove.
Preferably, as an improvement, the end part of the positioning column extending into the cavity is provided with a round angle, so that the cylinder insert is inserted more conveniently and rapidly.
Preferably, as an improvement, a bulge is arranged on the periphery of the cylinder insert, and the bulge is positioned between the middle part of the cylinder insert and a section of the cylinder insert extending into the top end of the cavity. Through set up the arch on a section of thick bamboo class mold insert to after reinforcing aluminum alloy product shaping, the connection compactness between section of thick bamboo class mold insert and the aluminum alloy material.
Preferably, as a modification, the positioning column is a steel positioning column.
Preferably, as an improvement, the positioning column is detachably connected to the fixed die.
Drawings
Fig. 1 is a schematic cross-sectional view of an aluminum alloy product with a barrel insert die-cast by a die-casting die of the prior art.
Fig. 2 is a schematic cross-sectional view of an aluminum alloy product die-cast with a cartridge-like insert according to an embodiment of the present utility model.
Fig. 3 is a schematic view showing a three-dimensional structure of the mounting positions of the stationary mold, the positioning column and the cylinder insert according to the embodiment of the present utility model (wherein the cylinder insert is not yet put on the positioning column in this state).
Detailed Description
The following is a further detailed description of the embodiments:
Reference numerals in the drawings of the specification include: the mold comprises a movable mold 1, a fixed mold 2, an annular groove 21, a cavity 10, a positioning column 3, a mounting section, a positioning section 32, a cylinder insert 4 and a bulge 41.
Examples
Referring to fig. 2 and 3, a die casting mold structure for mounting a cylinder insert in high-pressure casting comprises a movable mold 1 and a fixed mold 2, wherein a product molding cavity 10 is formed after the movable mold 1 and the fixed mold 2 are assembled, a positioning column 3 is fixed on the fixed mold 2, the positioning column 3 is made of steel, an annular groove 21 for accommodating the cylinder insert 4 is processed on the fixed mold 2, the positioning column 3 is sleeved with the annular groove 21, the annular groove 21 is in interference fit with the cylinder insert 4, the actual length of a blind hole of the cylinder insert 4 is greater than the design length, the depth of the annular groove 21 is equal to the difference between the actual length of the blind hole and the design length, and after the cylinder insert 4 is inserted into the positioning column 3, the opening end face of the cylinder insert 4 is in contact with the bottom face of the annular groove 21.
The groove depth of the annular groove 21 is 3-5mm. The distance between the top end of the positioning column 3 extending into the cavity 10 and the bottom surface of the annular groove 21 is smaller than the length of the blind hole on the cylinder insert 4. The end of the positioning column 3 extending into the cavity 10 is provided with a round angle.
The bulge 41 is integrally formed on the periphery of the cylinder insert 4 adopted by the die-casting molding, the bulge 41 is positioned between the middle part of the cylinder insert 4 and one section of the top end of the cylinder insert 4 extending into the cavity 10, the bulge 41 of the embodiment is a hexagonal bulge 41, so that after the die-casting molding of a product, aluminum alloy materials are buried all around the bulge 41, the cylinder insert 4 is ensured not to be completely peeled off from the aluminum alloy materials even under the condition of large stress, and the die-casting molding device is very suitable for being used as an aluminum alloy product connecting piece for the cylinder insert 4.
In addition, the positioning column 3 of the embodiment is detachably connected to the fixed mold 2, the detachable mode of the positioning column 3 is the same as that of the existing positioning column 3 mounted on the fixed mold 2, the positioning column 3 comprises an integrally formed mounting section and a positioning section 32, the mounting section is located in the fixed mold 2, the positioning section 32 extends into the cavity 10, and the cylinder insert 4 is sleeved on the positioning section 32.
The specific procedure of this embodiment is as follows:
When the embodiment is adopted, the cylinder type insert 4 with the actual length of the blind hole being larger than the design length is adopted, the insert is inserted into the positioning column 3, the cylinder type insert 4 is inserted into the annular groove 21, the part of the cylinder type insert 4 exceeding the design length is just completely inserted into the annular groove 21, and the position and the size of the blind hole extending into the aluminum alloy product are ensured to meet the design requirement. In the die casting process, the cylinder insert 4 is in interference fit with the annular groove 21 at the part exceeding the design length, so that the cylinder insert 4 is difficult to displace on the positioning column 3, in addition, the cylinder insert 4 is inserted into the annular groove 21, if the cylinder insert 4 is required to be pushed to move, the aluminum liquid entering the cavity 10 needs to enter the peripheral gap between the annular groove 21 and the cylinder insert 4, then enters the gap between the cylinder insert 4 and the contact end surface of the annular groove 21, and the cylinder insert 4 can be pushed to move, however, the annular groove 21 is positioned in the fixed die 2 and is in interference fit with the cylinder insert 4, even if the aluminum liquid has a tendency of moving towards the peripheral gap between the annular groove 21 and the cylinder insert 4 under high pressure, the aluminum liquid cannot enter smoothly due to the interference fit, and the fact that the aluminum liquid cannot push the cylinder insert 4 to move along the positioning column 3 is ensured, and the position accuracy of the cylinder insert 4 on a molded product is ensured after die casting is finished.
In addition, the groove depth of the annular groove 21 is set to be 3-5mm, so that the interference fit length of the cylinder insert 4 and the annular groove 21 is ensured to be 3-5mm, and the friction force for limiting the movement of the cylinder insert 4 in the die casting process is ensured; meanwhile, the length dimension is very small, the difficulty in demolding of the aluminum alloy product is basically not influenced by the interference fit length, and the smoothness of demolding is ensured.
In addition, in this embodiment, since the actual length of the blind hole of the cylinder insert 4 is greater than the design length, after the aluminum alloy product is formed, the cylinder insert 4 will exceed the aluminum alloy product in one section at the opening, at this time, only the excessive part of the cylinder insert 4 needs to be turned together when the aluminum alloy product is subjected to subsequent turning, and since the product precision after the die casting of the aluminum alloy product is limited, most aluminum alloy products will need turning after the die casting of the aluminum alloy product, even if the turning of 3-4mm of the cylinder insert 4 is increased, the forming efficiency of the whole aluminum alloy product is not affected basically in this embodiment, and by the design of this embodiment, the yield of the cylinder insert 4 along with the die casting of the aluminum alloy product is greatly improved, and the overall production benefit is improved.
The foregoing is merely exemplary of the present utility model, and specific technical solutions and/or features that are well known in the art have not been described in detail herein. It should be noted that, for those skilled in the art, several variations and modifications can be made without departing from the technical solution of the present utility model, and these should also be regarded as the protection scope of the present utility model, which does not affect the effect of the implementation of the present utility model and the practical applicability of the patent. The protection scope of the present utility model is subject to the content of the claims, and the description of the specific embodiments and the like in the specification can be used for explaining the content of the claims.
Claims (7)
1. The utility model provides a die casting die structure that section of thick bamboo class mold insert installation was used in high pressure casting, includes movable mould and cover half, forms product fashioned die cavity after movable mould and the cover half compound die, is fixed with the reference column on the cover half, its characterized in that: the fixed die is provided with an annular groove for accommodating the cylinder insert, the annular groove is sleeved with the positioning column, the annular groove is in interference fit with the cylinder insert, the actual length of a blind hole of the cylinder insert is greater than the design length, and the depth of the annular groove is equal to the difference value between the actual length of the blind hole and the design length.
2. The die casting die structure for mounting a cylinder-like insert in high-pressure casting according to claim 1, wherein: the depth of the annular groove is 3-5mm.
3. The die casting die structure for mounting a cylinder-like insert in high-pressure casting according to claim 2, characterized in that: the distance between the top end of the positioning column extending into the cavity and the bottom surface of the annular groove is smaller than the length of the blind hole on the cylinder insert.
4. A die casting die structure for mounting a cylinder-like insert in high pressure casting according to claim 3, characterized in that: the end part of the positioning column extending into the cavity is provided with a round corner.
5. A die casting die structure for mounting a cylinder type insert in high pressure casting according to any one of claims 1 to 4, characterized in that: the periphery of the cylinder insert is provided with a bulge, and the bulge is positioned on a section from the middle part of the cylinder insert to the top end of the cylinder insert extending into the cavity.
6. A die casting die structure for mounting a cylinder type insert in high pressure casting according to any one of claims 1 to 4, characterized in that: the positioning column is a steel positioning column.
7. A die casting die structure for mounting a cylinder type insert in high pressure casting according to any one of claims 1 to 4, characterized in that: the positioning column is detachably connected to the fixed die.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322893296.1U CN221087226U (en) | 2023-10-26 | 2023-10-26 | Die casting die structure for mounting cylinder inserts in high-pressure casting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322893296.1U CN221087226U (en) | 2023-10-26 | 2023-10-26 | Die casting die structure for mounting cylinder inserts in high-pressure casting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221087226U true CN221087226U (en) | 2024-06-07 |
Family
ID=91318499
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322893296.1U Active CN221087226U (en) | 2023-10-26 | 2023-10-26 | Die casting die structure for mounting cylinder inserts in high-pressure casting |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221087226U (en) |
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2023
- 2023-10-26 CN CN202322893296.1U patent/CN221087226U/en active Active
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