CN212191121U - Reusable titanium alloy casting mold structure - Google Patents
Reusable titanium alloy casting mold structure Download PDFInfo
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- CN212191121U CN212191121U CN202020589968.3U CN202020589968U CN212191121U CN 212191121 U CN212191121 U CN 212191121U CN 202020589968 U CN202020589968 U CN 202020589968U CN 212191121 U CN212191121 U CN 212191121U
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Abstract
A titanium alloy casting mould structure capable of being repeatedly used comprises an upper mould, a lower mould, an axisymmetric insert, a non-axisymmetric insert and a high-expansion-rate insert; the axisymmetric insert, the non-axisymmetric insert and the high-expansion-rate insert are fixedly connected with the upper die or the lower die through bolts to form an upper die assembly and a lower die assembly, and after the upper die assembly and the lower die assembly are closed, an inner cavity forms a casting cavity; after the titanium alloy casting is finished, the fixing bolts of the axisymmetric insert and the non-axisymmetric insert are dismounted, so that the axisymmetric insert and the non-axisymmetric insert are separated from the mold, and the problem that the cast titanium alloy casting with the barb structure cannot be demoulded normally is solved; after the titanium alloy casting is finished, the size of the high-expansion-rate insert is smaller than the sizes of the corresponding holes and grooves of the titanium alloy casting, so that the problem that the cast titanium alloy casting with the hole and groove structure cannot be demoulded smoothly is solved; therefore, the problem that part of the titanium alloy casting mould is scrapped only once is solved, and the use cost of the titanium alloy casting mould is greatly reduced.
Description
Technical Field
The utility model relates to a titanium alloy casting technical field, concretely relates to titanium alloy casting mould structure that can used repeatedly.
Background
The existing titanium alloy casting molds are made of graphite materials; part of the cast titanium alloy castings are provided with structures such as holes, grooves and the like, and the corresponding titanium alloy casting mold is correspondingly provided with a cylinder and a lug boss; because the graphite material and the titanium alloy have different thermal expansion coefficients, after the titanium alloy casting is finished, the holes and the grooves of the titanium alloy casting are contracted and tightly wrapped on the corresponding columns and the bosses of the titanium alloy casting mould, so that the titanium alloy casting cannot be smoothly demoulded after the casting is finished, the titanium alloy casting mould has to be broken to take out the titanium alloy casting, and the existing part of the titanium alloy casting mould can be scrapped only once; in addition, a part of cast titanium alloy castings are provided with barb structures, and after the titanium alloy castings are cast, the titanium alloy castings cannot be demoulded normally due to the barb structures, so that the titanium alloy casting mold has to be broken to take out the titanium alloy castings, and the existing part of titanium alloy casting mold can be discarded only once; the cost of the titanium alloy casting mold comprises the weight cost of graphite used for processing the mold and the processing cost of the mold, so that the titanium alloy casting mold is high in cost and can be scrapped after being used once, and great economic loss is caused to enterprises.
SUMMERY OF THE UTILITY MODEL
In order to overcome the defects in the background technology, the utility model discloses a titanium alloy casting mould structure which can be repeatedly used, comprising an upper mould, a lower mould, an axisymmetric insert, a non-axisymmetric insert and a high expansion rate insert; the axisymmetric insert, the non-axisymmetric insert and the high-expansion-rate insert are fixedly connected with the upper die or the lower die through bolts to form an upper die assembly and a lower die assembly; after the upper die assembly and the lower die assembly are assembled, internal cavities of the upper die assembly and the lower die assembly form a casting cavity for casting a titanium alloy casting; after the titanium alloy casting is finished, the fixing bolts of the axisymmetric insert and the non-axisymmetric insert are dismounted, so that the axisymmetric insert and the non-axisymmetric insert are separated from the mold, and the problem that the cast titanium alloy casting with the barb structure cannot be demoulded normally is solved; after the titanium alloy casting is finished, the high-expansion-rate insert has larger shrinkage rate than the titanium alloy and has a size smaller than the size of the corresponding hole and groove of the titanium alloy casting, so that the problem that the hole and groove of the titanium alloy casting are tightly wrapped on the high-expansion-rate insert is avoided, and the problem that the cast titanium alloy casting with a hole and groove structure cannot be smoothly demoulded is solved; adopt the utility model discloses a titanium alloy casting mould structure that can used repeatedly has solved in the past partial titanium alloy casting mould and has only used once just condemned problem, has reduced the use cost of titanium alloy casting mould, has greatly improved enterprise economic benefits.
In order to realize the utility model aims at, the utility model adopts the following technical scheme: a titanium alloy casting mould structure capable of being repeatedly used comprises an upper mould, a lower mould, an axisymmetric insert, a non-axisymmetric insert and a high-expansion-rate insert; the shape of the axisymmetric insert is formed by rotating an envelope wire around the rotation axis of the axisymmetric insert, and the axisymmetric insert has no directionality when being installed and fixed; the shape of the non-axisymmetrical insert does not have a rotation axis relative to the axisymmetrical insert, and the non-axisymmetrical insert has directivity when being installed; the high-expansion-rate insert is characterized in that the material forming the insert has a higher thermal expansion coefficient than that of the titanium alloy, and the high-expansion-rate insert has larger size variation than that of the titanium alloy casting along with solidification and cooling of a titanium alloy solution during casting of the titanium alloy casting; the axisymmetric insert, the non-axisymmetric insert and the high-expansion-rate insert are fixedly connected in a cavity of the upper die or the lower die through bolts to form an upper die assembly and a lower die assembly; after the upper die assembly and the lower die assembly are assembled, a casting cavity is formed in the inner cavity of the upper die assembly and the lower die assembly and is used for forming and casting the titanium alloy casting.
Further, the upper part of the axisymmetric insert is provided with an axisymmetric insert head; the upper part of the non-axisymmetric insert is provided with a non-axisymmetric insert head; an axisymmetric insert groove and a non-axisymmetric insert groove are arranged in the die cavity of the upper die or the lower die; the axisymmetric insert head of the axisymmetric insert is arranged in the axisymmetric insert groove, the non-axisymmetric insert head of the non-axisymmetric insert is arranged in the non-axisymmetric insert groove, and the axisymmetric insert and the non-axisymmetric insert are fixedly connected with the upper die or the lower die through bolts; when the axisymmetric insert is arranged in the axisymmetric insert groove through the axisymmetric insert head, the axisymmetric insert is more convenient to install because of no directivity, and meanwhile, the axisymmetric insert and the axisymmetric insert groove are relatively simple to process; when the non-axisymmetric insert is arranged in the non-axisymmetric insert groove through the non-axisymmetric insert head, the accuracy of the installation direction of the non-axisymmetric insert is ensured by the non-axisymmetric insert head.
Further, the axisymmetric insert head is conical; the non-axisymmetrical insert head is a cube or a cuboid, and the side wall of the cube or the cuboid is provided with a taper; the axisymmetric insert groove and the non-axisymmetric insert groove of the upper die or the lower die and the corresponding axisymmetric insert head and the non-axisymmetric insert head are provided with the same taper; the purpose of setting the taper of the axisymmetric insert head, the non-axisymmetric insert head, and the axisymmetric insert groove and the non-axisymmetric insert groove of the upper die or the lower die is to more conveniently install the axisymmetric insert head and the non-axisymmetric insert head, and simultaneously, the separation of the axisymmetric insert head and the non-axisymmetric insert head from the upper die or the lower die is smoother during demoulding; in addition, the arrangement of the axisymmetric insert head, the non-axisymmetric insert head, and the axisymmetric insert grooves and the non-axisymmetric insert grooves of the upper die or the lower die is tapered, so that the damage to the axisymmetric insert grooves and the non-axisymmetric insert grooves of the upper die or the lower die is avoided when the axisymmetric insert and the non-axisymmetric insert are mounted on the upper die or the lower die for multiple times, and the service life of the upper die or the lower die is prolonged.
Furthermore, the bottom surfaces of the axisymmetric insert head and the non-axisymmetric insert head and the cavity surface of the upper die or the lower die are provided with segment differences, namely the bottom surfaces of the axisymmetric insert head and the non-axisymmetric insert head are sunken in the cavity surface of the upper die or the lower die, so that the bottom surfaces of the axisymmetric insert head and the non-axisymmetric insert head exceed the cavity surface of the upper die or the lower die when machining errors exist in the axisymmetric insert groove and the non-axisymmetric insert groove of the upper die or the lower die, and the cast titanium alloy casting is scrapped due to the phenomenon of material shortage; the arrangement of the segment difference can cause the problem of excessive materials of the cast titanium alloy casting, and the excessive materials of the titanium alloy casting can be eliminated by a machining method.
Furthermore, a high-expansion-rate insert groove is formed in a die cavity of the upper die or the lower die; the high-expansion-rate insert is arranged in the high-expansion-rate insert groove and is fixedly connected with the upper die or the lower die through a bolt; the clearance is arranged between the high expansion rate insert and the high expansion rate insert groove, and the purpose of the clearance is to prevent the upper die or the lower die from being damaged due to different expansion rates between the high expansion rate insert and the high expansion rate insert groove in the casting process of the titanium alloy casting.
Further, the axisymmetric insert and the non-axisymmetric insert are made of graphite, and after the titanium alloy casting is finished, the axisymmetric insert and the non-axisymmetric insert are broken and taken out of the titanium alloy casting; the high-expansion-rate insert is made of red copper, and the thermal expansion coefficient of the high-expansion-rate insert is higher than that of titanium alloy; after the titanium alloy casting is finished, the shrinkage rate of the titanium alloy casting is larger than that of the titanium alloy, and the size of the titanium alloy casting is smaller than that of the corresponding titanium alloy casting hole and groove, so that the titanium alloy casting can be smoothly demoulded after the casting is finished.
Due to the adoption of the technical scheme, the utility model discloses following beneficial effect has: the utility model discloses a titanium alloy casting mould structure which can be repeatedly used, comprising an upper mould, a lower mould, an axisymmetric insert, a non-axisymmetric insert and a high expansion rate insert; the axisymmetric insert, the non-axisymmetric insert and the high-expansion-rate insert are fixedly connected with the upper die or the lower die through bolts to form an upper die assembly and a lower die assembly; after the upper die assembly and the lower die assembly are assembled, internal cavities of the upper die assembly and the lower die assembly form a casting cavity for casting a titanium alloy casting; after the titanium alloy casting is finished, the fixing bolts of the axisymmetric insert and the non-axisymmetric insert are dismounted, so that the axisymmetric insert and the non-axisymmetric insert are separated from the mold, and the problem that the cast titanium alloy casting with the barb structure cannot be demoulded normally is solved; after the titanium alloy casting is finished, the high-expansion-rate insert has larger shrinkage rate than the titanium alloy and has a size smaller than the size of the corresponding hole and groove of the titanium alloy casting, so that the problem that the hole and groove of the titanium alloy casting are tightly wrapped on the high-expansion-rate insert is avoided, and the problem that the cast titanium alloy casting with a hole and groove structure cannot be smoothly demoulded is solved; adopt the utility model discloses a titanium alloy casting mould structure that can used repeatedly has solved in the past partial titanium alloy casting mould and has only used once just condemned problem, has reduced the use cost of titanium alloy casting mould, has greatly improved enterprise economic benefits.
Drawings
FIG. 1 is an exploded view of a reusable titanium alloy casting mold structure;
FIG. 2 is an exploded schematic view of the upper die assembly;
FIG. 3 is an exploded schematic view of the lower die assembly;
FIG. 4 is a rotary cross-sectional view of a titanium alloy casting;
FIG. 5 is a sectional view showing the structural operation state of a reusable titanium alloy casting mold;
FIG. 6 is an enlarged view of part A;
FIG. 7 is a schematic view of an axially symmetric insert;
FIG. 8 is a schematic view of a non-axisymmetric insert appearance;
FIG. 9 is a schematic view of the appearance of an insert with a high expansion ratio.
In the figure: 1. an upper die; 1.1, axisymmetric insert slots; 1.2, non-axisymmetric insert slots; 2. a lower die; 3. an axisymmetric insert; 3.1, axially symmetrical insert heads; 4. a non-axisymmetric insert; 4.1, non-axisymmetric insert heads; 5. high expansion rate inserts; 6. a titanium alloy casting.
Detailed Description
The invention will be explained in more detail by the following examples, which disclose the invention and are intended to protect all technical improvements within the scope of the invention.
A titanium alloy casting mould structure capable of being repeatedly used comprises an upper mould 1, a lower mould 2, an axisymmetric insert 3, a non-axisymmetric insert 4 and a high-expansion-rate insert 5; the axisymmetric insert 3 and the non-axisymmetric insert 4 are fixedly connected with the upper die 1 through bolts to form an upper die assembly; the high-expansion-rate insert 5 is fixedly connected with the lower die 2 through a bolt to form a lower die assembly; after the upper die assembly and the lower die assembly are assembled, internal cavities of the upper die assembly and the lower die assembly form a casting cavity;
the upper part of the axisymmetric insert 3 is provided with an axisymmetric insert head 3.1; the upper part of the non-axisymmetric insert 4 is provided with a non-axisymmetric insert head 4.1; an axisymmetric insert groove 1.1 and a non-axisymmetric insert groove 1.2 are arranged in a die cavity of the upper die 1; the axisymmetric insert head 3.1 of the axisymmetric insert 3 is arranged in the axisymmetric insert groove 1.1, the non-axisymmetric insert head 4.1 of the non-axisymmetric insert 4 is arranged in the non-axisymmetric insert groove 1.2, and the axisymmetric insert 3 and the non-axisymmetric insert 4 are fixedly connected with the upper die 1 through bolts;
the axisymmetric insert head 3.1 is conical; the non-axisymmetrical insert head 4.1 is a cube or a cuboid, and the side wall of the cube or the cuboid is provided with a taper; the axisymmetric insert groove 1.1 and the non-axisymmetric insert groove 1.2 of the upper die 1 are provided with the same conicity corresponding to the axisymmetric insert head 3.1 and the non-axisymmetric insert head 4.1;
the bottom surfaces of the axisymmetric insert heads 3.1 and the non-axisymmetric insert heads 4.1 and the cavity surface of the upper die 1 are provided with segment differences;
a high-expansion-rate insert groove 2.1 is formed in the die cavity of the lower die 2; the high-expansion-rate insert 5 is arranged in the high-expansion-rate insert groove 2.1, and the high-expansion-rate insert 5 is fixedly connected with the lower die 2 through a bolt; a gap is arranged between the high expansion rate insert 5 and the high expansion rate insert groove 2.1;
the axisymmetric insert 3 and the non-axisymmetric insert 4 are made of graphite; the high-expansion-rate insert 5 is made of red copper.
The part of the utility model not detailed is prior art.
Claims (6)
1. A titanium alloy casting mould structure capable of being repeatedly used is characterized in that: comprises an upper die (1), a lower die (2), an axisymmetric insert (3), a non-axisymmetric insert (4) and a high-expansion-rate insert (5); the axisymmetric insert (3), the non-axisymmetric insert (4) and the high-expansion-rate insert (5) are fixedly connected in a cavity of the upper die (1) or the lower die (2) through bolts to form an upper die assembly and a lower die assembly; after the upper die assembly and the lower die assembly are assembled, internal cavities of the upper die assembly and the lower die assembly form a casting cavity.
2. The reusable titanium alloy casting mold structure according to claim 1, wherein: the upper part of the axisymmetric insert (3) is provided with an axisymmetric insert head (3.1); the upper part of the non-axisymmetric insert (4) is provided with a non-axisymmetric insert head (4.1); an axisymmetric insert groove (1.1) and a non-axisymmetric insert groove (1.2) are arranged in a die cavity of the upper die (1) or the lower die (2); the axisymmetric insert head (3.1) of the axisymmetric insert (3) is arranged in the axisymmetric insert groove (1.1), the non-axisymmetric insert head (4.1) of the non-axisymmetric insert (4) is arranged in the non-axisymmetric insert groove (1.2), and the axisymmetric insert (3) and the non-axisymmetric insert (4) are fixedly connected with the upper die (1) or the lower die (2) through bolts.
3. The reusable titanium alloy casting mold structure according to claim 2, characterized in that: the axisymmetric insert head (3.1) is conical; the non-axisymmetrical insert head (4.1) is a cube or a cuboid, and the side wall of the cube or the cuboid is provided with a taper; the axisymmetric insert groove (1.1) and the non-axisymmetric insert groove (1.2) of the upper die (1) or the lower die (2) are provided with the same taper with the corresponding axisymmetric insert head (3.1) and the non-axisymmetric insert head (4.1).
4. The reusable titanium alloy casting mold structure according to claim 2 or 3, characterized in that: and a section difference is arranged between the bottom surfaces of the axisymmetric insert head (3.1) and the non-axisymmetric insert head (4.1) and the cavity surface of the upper die (1) or the lower die (2).
5. The reusable titanium alloy casting mold structure according to claim 1, wherein: a high-expansion-rate insert groove (2.1) is formed in the die cavity of the upper die (1) or the lower die (2); the high-expansion-rate insert (5) is arranged in the high-expansion-rate insert groove (2.1), and the high-expansion-rate insert (5) is fixedly connected with the upper die (1) or the lower die (2) through a bolt; a gap is arranged between the high-expansion-rate insert (5) and the high-expansion-rate insert groove (2.1).
6. The reusable titanium alloy casting mold structure according to claim 1, wherein: the axisymmetric insert (3) and the non-axisymmetric insert (4) are made of graphite; the high-expansion-rate insert (5) is made of red copper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020589968.3U CN212191121U (en) | 2020-04-20 | 2020-04-20 | Reusable titanium alloy casting mold structure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020589968.3U CN212191121U (en) | 2020-04-20 | 2020-04-20 | Reusable titanium alloy casting mold structure |
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| Publication Number | Publication Date |
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| CN212191121U true CN212191121U (en) | 2020-12-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020589968.3U Active CN212191121U (en) | 2020-04-20 | 2020-04-20 | Reusable titanium alloy casting mold structure |
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| CN (1) | CN212191121U (en) |
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- 2020-04-20 CN CN202020589968.3U patent/CN212191121U/en active Active
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