CN215356125U - Low-pressure casting forming die for aluminum alloy tank body casting - Google Patents
Low-pressure casting forming die for aluminum alloy tank body casting Download PDFInfo
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- CN215356125U CN215356125U CN202121637223.0U CN202121637223U CN215356125U CN 215356125 U CN215356125 U CN 215356125U CN 202121637223 U CN202121637223 U CN 202121637223U CN 215356125 U CN215356125 U CN 215356125U
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Abstract
The utility model relates to the technical field of casting, in particular to a low-pressure casting forming die for an aluminum alloy tank casting, which comprises a lower die and an upper die covered on the top surface of the lower die, wherein a liquid inlet is formed in the center of the bottom surface of the lower die in a penetrating mode, an inner bushing is arranged in an inner cavity of the lower die and is of a cylindrical structure, the outer peripheral wall of the inner bushing is tightly attached to the inner wall of the lower die, and the top surface and the bottom surface of the inner bushing are respectively tightly attached to the lower edge of the top of the upper die and the inner bottom surface of the lower die. According to the utility model, the detachable inner bushing is arranged in the inner cavity of the lower die, so that the grains of the outer wall of the casting can be conveniently changed, a large number of forming dies are not required to be prepared, and the manufacturing cost of an enterprise can be reduced.
Description
Technical Field
The utility model relates to the technical field of casting, in particular to a low-pressure casting forming die for an aluminum alloy tank body casting.
Background
The low-pressure casting is a casting method in which a casting mold is generally placed above a sealed crucible, compressed air is introduced into the crucible, a low pressure (0.06 to 0.15MPa) is generated on the surface of molten metal, and the molten metal is lifted from a lift tube to fill the casting mold and control solidification. The casting method has the advantages of good feeding, compact casting structure, easy casting of large thin-wall complex castings, no need of risers, 95% metal yield, no pollution and easy realization of automation.
At present, when an enterprise produces an aluminum alloy tank body, a low-pressure casting technology is needed, but according to the requirements of customers, special grains are often needed to be left on the outer wall of the tank body, so that even if the tank body is of the same size, due to the fact that grains of the outer wall of the tank body are different, multiple forming molds with different grains need to be prepared in a production workshop, and production cost of the enterprise is increased invisibly. Therefore, we propose a low-pressure casting forming die for aluminum alloy tank body castings to well solve the above disadvantages.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a low-pressure casting forming die for an aluminum alloy tank casting, which solves the problems in the background technology by arranging a detachable and replaceable inner lining in an inner cavity of a lower die.
The above object of the present invention is achieved by the following technical solutions:
the low-pressure casting forming die for the aluminum alloy tank casting comprises a lower die and an upper die covering the top surface of the lower die, wherein a liquid inlet is formed in the center of the bottom surface of the lower die in a penetrating mode, an inner bushing is arranged in an inner cavity of the lower die and is of a cylindrical structure, the outer peripheral wall of the inner bushing is tightly attached to the inner wall of the lower die, and the top surface and the bottom surface of the inner bushing are tightly attached to the lower edge of the top of the upper die and the inner bottom surface of the lower die respectively;
the side wall of the lower die is provided with a plurality of mounting holes in a penetrating manner, one end of each mounting hole, which is close to the outer wall of the lower die, is fixedly embedded with a sealing plug, one end of each mounting hole, which is close to the inner cavity of the lower die, is inserted with a positioning block, one end of each positioning block extends into the inner cavity of the lower die, and a control mechanism for controlling the positioning blocks to move along the axial direction of the mounting holes is further arranged in each mounting hole; and positioning grooves are formed in the positions, matched with the positioning blocks, of the two sides of the outer wall of the inner bushing.
Preferably, the control mechanism comprises a pull rod and a compression spring, the pull rod is located inside the mounting hole, the compression spring is sleeved outside the pull rod, one end of the pull rod is fixedly connected with the positioning block, the other end of the pull rod penetrates through the sealing plug and extends to the outside of the mounting hole, and two ends of the compression spring are respectively abutted to the positioning block and the sealing plug.
Preferably, the inner peripheral wall of the lower die is provided with a plurality of guide rails distributed along the vertical direction, and the outer peripheral wall of the inner bushing is provided with guide grooves matched with the guide rails.
Preferably, the bottom surface of the inner bushing and the circumference of the inner bushing are provided with a lower annular positioning ring, and the inner bottom surface of the lower die is provided with a lower positioning groove matched with the lower positioning ring.
Preferably, an annular upper positioning ring is arranged on the top surface of the inner bushing and along the circumferential direction of the inner bushing, and an upper positioning groove matched with the upper positioning ring is formed in the lower edge of the top of the upper die.
Compared with the prior art, the utility model provides a low-pressure casting forming die for an aluminum alloy tank casting, which has the following beneficial effects:
1. according to the utility model, the detachable inner bushing is arranged in the inner cavity of the lower die, so that the grains of the outer wall of the casting can be conveniently changed, a large number of forming dies are not required to be prepared, and the manufacturing cost of an enterprise can be reduced;
2. the position of the inner bushing is fixed through the guide rail and the positioning block, the inner bushing is prevented from shaking or falling off in the inner cavity of the lower die, and the purpose of convenient disassembly and assembly of the inner bushing is achieved.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the inner liner of the present invention;
fig. 3 is an enlarged corresponding view of a portion a in fig. 1.
In the figure: 1. a lower die; 2. an upper die; 3. a liquid inlet; 4. an inner liner; 5. mounting holes; 6. a sealing plug; 7. positioning blocks; 8. positioning a groove; 9. a pull rod; 10. a compression spring; 11. a guide rail; 12. a guide groove; 13. a lower positioning ring; 14. and an upper positioning ring.
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.
Example (b): referring to fig. 1, the low pressure casting forming mold for the aluminum alloy tank casting comprises a lower mold 1 and an upper mold 2 covering the top surface of the lower mold 1, wherein a liquid inlet 3 is formed in the center of the bottom surface of the lower mold 1 in a penetrating manner, namely, metal liquid for casting enters an inner cavity of the lower mold 1 from the liquid inlet 3, an inner bushing 4 is arranged in the inner cavity of the lower mold 1, the inner bushing 4 is of a cylindrical structure, the outer peripheral wall of the inner bushing 4 is tightly attached to the inner wall of the lower mold 1, the top surface and the bottom surface of the inner bushing 4 are tightly attached to the top lower edge of the upper mold 2 and the inner bottom surface of the lower mold 1 respectively, and the inner peripheral wall of the inner bushing 4 is provided with grains.
Referring to fig. 1 and 2, a plurality of guide rails 11 are vertically distributed on the inner circumferential wall of the lower die 1, a guide groove 12 adapted to the guide rails 11 is formed on the outer circumferential wall of the inner bushing 4, when the inner bushing 4 is installed, the guide groove 12 needs to be aligned to the guide rails 11, and then the inner bushing 4 is placed in the guide rail 11, wherein the guide rail 11 is used for preventing the inner bushing 4 from rotating in the inner cavity of the lower die 1; the annular lower positioning ring 13 is arranged on the bottom surface of the inner bushing 4 along the circumferential direction of the inner bushing 4, and the inner bottom surface of the lower die 1 is provided with a lower positioning groove matched with the lower positioning ring 13, so that after the inner bushing 4 is arranged inside the lower die 1, the lower positioning ring 13 is embedded into the lower positioning groove to improve the connection tightness between the inner bushing 4 and the lower die 1 and prevent metal liquid from flowing into a crack between the lower die 1 and the inner bushing 4; the top surface of interior bush 4 and be equipped with the last holding ring 14 that is the annular form along the circumference of interior bush 4, go up the last constant head tank of mould 2 top down along offering with last holding ring 14 looks adaptation, after upper die 2 lid closed on lower mould 1, go up holding ring 14 and imbed promptly to supreme constant head tank in, the effect is that the compactness of laminating between mould 2 and the interior bush 4 is improved, avoids the metal liquid to leak.
Referring to fig. 1 and 3, a plurality of mounting holes 5 are formed through the side wall of the lower die 1, a sealing plug 6 is fixedly embedded in one end of the mounting hole 5 close to the outer wall of the lower die 1, the sealing plug 6 is made of metal and is fixed in the mounting hole 5 in a threaded manner, a positioning block 7 is inserted in one end of the mounting hole 5 close to the inner cavity of the lower die 1, the positioning block 7 can slide along the length direction of the mounting hole 5, one end of the positioning block 7 extends into the inner cavity of the lower die 1, and a control mechanism for controlling the positioning block 7 to move along the axial direction of the mounting hole 5 is further arranged inside the mounting hole 5; the control mechanism comprises a pull rod 9 positioned in the mounting hole 5 and a compression spring 10 sleeved outside the pull rod 9, one end of the pull rod 9 is fixedly connected with the positioning block 7, the other end of the pull rod 9 penetrates through the sealing plug 6 and extends to the outside of the mounting hole 5, two ends of the compression spring 10 are respectively abutted against the positioning block 7 and the sealing plug 6, when the compression spring 10 is in a natural state, one end of the positioning block 7 always extends into an inner cavity of the lower die 1, but one end of the pull rod 9, which is far away from the positioning block 7, is positioned outside the mounting hole 5, so that an operator can manually control the movement of the positioning block 7 through the pull rod 9; and positioning grooves 8 are formed in the positions, matched with the positioning blocks 7, of the two sides of the outer wall of the inner bushing 4, and after one end of each positioning block 7 is embedded into each positioning groove 8, the position of the inner bushing 4 is fixed.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. Aluminum alloy jar body foundry goods low pressure casting forming die closes last mould (2) on lower mould (1) top surface, its characterized in that including lower mould (1) and lid: a liquid inlet (3) penetrates through the center of the bottom surface of the lower die (1), an inner lining (4) is arranged in the inner cavity of the lower die (1), the inner lining (4) is of a cylindrical structure, the outer peripheral wall of the inner lining (4) is tightly attached to the inner wall of the lower die (1), and the top surface and the bottom surface of the inner lining (4) are tightly attached to the lower edge of the top of the upper die (2) and the inner bottom surface of the lower die (1) respectively;
a plurality of mounting holes (5) are formed in the side wall of the lower die (1) in a penetrating mode, a sealing plug (6) is fixedly embedded in one end, close to the outer wall of the lower die (1), of each mounting hole (5), a positioning block (7) is inserted into one end, close to the inner cavity of the lower die (1), of each positioning block (7), one end of each positioning block extends into the inner cavity of the corresponding lower die (1), and a control mechanism used for controlling the positioning blocks (7) to move along the axial direction of the mounting holes (5) is further arranged inside the corresponding mounting holes (5); and positioning grooves (8) are formed in the positions, matched with the positioning blocks (7), of the two sides of the outer wall of the inner bushing (4).
2. The aluminum alloy tank casting low-pressure casting forming die of claim 1, wherein: control mechanism establishes compression spring (10) in pull rod (9) outside including pull rod (9) and the cover that is located mounting hole (5) inside, the one end and locating piece (7) rigid coupling of pull rod (9), and the other end of pull rod (9) runs through sealing plug (6) and extends to the outside of mounting hole (5), compression spring (10) both ends respectively with locating piece (7) and sealing plug (6) butt.
3. The aluminum alloy tank casting low-pressure casting forming die of claim 1, wherein: the inner peripheral wall of the lower die (1) is provided with a plurality of guide rails (11) which are distributed along the vertical direction, and the outer peripheral wall of the inner bushing (4) is provided with a guide groove (12) which is matched with the guide rails (11).
4. The aluminum alloy tank casting low-pressure casting forming die of claim 1, wherein: the bottom surface of the inner bushing (4) is provided with a lower annular positioning ring (13) along the circumferential direction of the inner bushing (4), and the inner bottom surface of the lower die (1) is provided with a lower positioning groove matched with the lower positioning ring (13).
5. The aluminum alloy tank casting low-pressure casting forming die of claim 1, wherein: an annular upper positioning ring (14) is arranged on the top surface of the inner bushing (4) along the circumferential direction of the inner bushing (4), and an upper positioning groove matched with the upper positioning ring (14) is formed in the lower edge of the top of the upper die (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121637223.0U CN215356125U (en) | 2021-07-19 | 2021-07-19 | Low-pressure casting forming die for aluminum alloy tank body casting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121637223.0U CN215356125U (en) | 2021-07-19 | 2021-07-19 | Low-pressure casting forming die for aluminum alloy tank body casting |
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| Publication Number | Publication Date |
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| CN215356125U true CN215356125U (en) | 2021-12-31 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202121637223.0U Active CN215356125U (en) | 2021-07-19 | 2021-07-19 | Low-pressure casting forming die for aluminum alloy tank body casting |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115090856A (en) * | 2022-07-05 | 2022-09-23 | 安徽陶铝新动力科技有限公司 | Be used for aluminium base combined material low pressure casting to get material arm |
-
2021
- 2021-07-19 CN CN202121637223.0U patent/CN215356125U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115090856A (en) * | 2022-07-05 | 2022-09-23 | 安徽陶铝新动力科技有限公司 | Be used for aluminium base combined material low pressure casting to get material arm |
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