CN214814716U - Low pressure casting aluminum alloy wheel mould closed point cooling structure - Google Patents
Low pressure casting aluminum alloy wheel mould closed point cooling structure Download PDFInfo
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- CN214814716U CN214814716U CN202022495141.9U CN202022495141U CN214814716U CN 214814716 U CN214814716 U CN 214814716U CN 202022495141 U CN202022495141 U CN 202022495141U CN 214814716 U CN214814716 U CN 214814716U
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Abstract
The utility model discloses a low pressure casting aluminum alloy wheel mould closing point cooling structure, including setting up first cooling ring and the second cooling ring in the mould, be connected with second cooling bleeder on the second cooling ring, be connected with first cooling bleeder on the first cooling ring, first cooling bleeder passes second cooling ring and second cooling bleeder in proper order and reachs the cooling hole that needs local cooling on the mould, and first cooling ring communicates through first cooling bleeder and second cooling bleeder with the second cooling ring. Simple and reliable structure and easy manufacture.
Description
Technical Field
The utility model belongs to the technical field of the wheel casting technique and specifically relates to a low pressure casting aluminum alloy wheel mould closed point cooling structure.
Background
The aluminum alloy automobile hub has the advantages of attractive appearance, light weight, energy conservation, environmental protection and the like, and is widely applied in the world. The manufacture of aluminum alloy hubs began to be industrialized on a large scale in the last 80 th century. Manufacturing enterprises with the capacity of millions of parts per year are built in europe, japan, asia and the like. Under the support of the huge production quantity and the basic accumulated data and the research, development and innovation of the technicians, the manufacturing technology is continuously advanced, and the hub manufacturing industry is advanced to date and continuously advances towards the directions of automation, digitization, intellectualization, cloud interconnection and the like.
Low-pressure casting is the most common hub casting product molding manufacturing technique currently used by OEM hub products. Compared with deformation molding processes (such as forging and spinning) and stacking molding processes (such as 3D printing and injection), the low-pressure casting process technology has the obvious comprehensive advantages of efficiency, quality, cost and the like. Compared with gravity casting, the method is obviously higher in the actual service performance aspects such as metal yield, machining amount, casting size precision, material performance and the like.
The mainstream core technology of the current low-pressure casting technology is the high-efficiency water-cooling mold kernel technology. Since the 10 th century, the water-cooled mold low-pressure casting technology has been used in large scale worldwide with the difficulty in manufacturing the direct water-cooled cooling channel, so that various large casting suppliers have great progress in improving production efficiency, reducing cost, improving quality stability and the like. However, most of cooling channels of the existing water-cooling mold are all circular or arc-shaped surface direct contact type whole cooling channels, and a cooling medium and a mold interface are in continuous surface contact heat exchange. Casting products, particularly aluminum alloy hub products, are asymmetrical and uneven discontinuous geometric bodies in three dimensions, and the solidification direction of the casting products follows the basic principle of sequential solidification or simultaneous solidification in process control. Cooling is not required or necessary for the blank areas where no aluminum alloy metal is present. Therefore, the yield of the existing mold cooling technology is difficult to further improve after reaching a certain degree, such as 95% -98%, and the cooling strengthening effect of the existing cooling channel on the position of the casting FEA which is easy to fail is not obvious, which can be reflected from the secondary dendrite spacing (SDAS) value which can be reached by the silicon phase in the casting microstructure after cooling.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model aims at providing a low pressure casting aluminum alloy wheel mould closed point cooling structure can realize the fixed point cooling of specific area to improve production efficiency, yield and the mechanical properties etc. of foundry goods.
In order to achieve the above purpose, the technical scheme of the utility model is realized like this:
the utility model provides a low pressure casting aluminum alloy wheel mould closed point cooling structure, includes first cooling ring and the second cooling ring of setting in the mould, is connected with second cooling bleeder on the second cooling ring, is connected with first cooling bleeder on the first cooling ring, and first cooling bleeder passes second cooling ring and second cooling bleeder in proper order and reachs the cooling hole that needs local cooling on the mould, and first cooling ring communicates through first cooling bleeder and second cooling bleeder with the second cooling ring.
In some embodiments, the first cooling ring is in communication with the air inlet duct and the second cooling ring is in communication with the air outlet duct.
In some embodiments, the diameter of the second cooling ring is greater than the diameter of the first cooling ring.
In some embodiments, the cooling medium enters the first cooling ring through the air inlet duct, enters the cooling holes through the first cooling branch duct, enters the second cooling ring through the second cooling branch duct, and is discharged through the air outlet duct.
In some embodiments, the cooling medium comprises one or more of compressed air, cooling water, water mist.
In some embodiments, the first cooling branch pipe and the second cooling branch pipe may be provided in one or more numbers according to the number of cooling holes that need to be locally cooled.
In some embodiments, the first cooling branch pipe is welded to the first cooling ring and the second cooling branch pipe is welded to the second cooling ring. Compared with the prior art, low pressure casting aluminum alloy wheel mould closed point cooling structure have following advantage:
the structure is simple and reliable, and the manufacture is easy.
Secondly, the casting technology of the casting is met, and the cooling of a fixed-point cooling structure is enhanced in areas needing cooling, such as spoke and pouring gate positions; the blank metal-free locations are not cooled to.
Third, extensive applicability, the utility model discloses the coolant of the cold structure of closed point can use compressed air, cooling water, water smoke or compressed air and water in turn.
Drawings
The accompanying drawings, which form a part hereof, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without undue limitation. In the drawings:
FIG. 1 is a schematic view of a cooling structure of a low-pressure cast aluminum alloy wheel mold sealing point of the present invention;
fig. 2 is a schematic view of the installation of the low-pressure cast aluminum alloy wheel mold closed point cooling structure on the mold of the present invention;
description of reference numerals:
1-first cooling ring, 2-first cooling branch pipe, 3-second cooling ring, 4-second cooling branch pipe, 5-cooling hole, 6-welding point, 7-air inlet pipe, 8-air outlet pipe
Detailed Description
It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict.
The technical solution of the present invention will be described more clearly and completely with reference to the accompanying drawings, in which embodiments of the invention are shown and described. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
The low-pressure cast aluminum alloy wheel mold closed point cooling structure according to an embodiment of the present invention will be described below with reference to fig. 1 to 2 in conjunction with an embodiment.
The utility model discloses a low pressure casting aluminum alloy wheel mould closed point cooling structure, including setting up first cooling ring 1 and second cooling ring 3 in the mould, first cooling ring 1 intercommunication air-supply line 7, second cooling ring 3 intercommunication air-out pipe 8. The diameter of the second cooling ring 3 is larger than the diameter of the first cooling ring 1. The second cooling ring 3 is connected with a second cooling branch pipe 4, the first cooling ring 1 is connected with a first cooling branch pipe 2, the first cooling branch pipe 2 sequentially passes through the second cooling ring 3 and the second cooling branch pipe 4 to reach a cooling hole 5 which needs local cooling on the mold, and the first cooling ring 1 is communicated with the second cooling ring 3 through the first cooling branch pipe 2 and the second cooling branch pipe 4. The cooling medium enters the first cooling ring 1 through the air inlet pipe 7, enters the cooling holes 5 through the first cooling branch pipe 2, enters the second cooling ring 3 through the second cooling branch pipe 4, and is discharged through the air outlet pipe 8. The cooling medium comprises one or more of compressed air, cooling water and water mist.
The first cooling branch pipe 2 and the second cooling branch pipe 4 may be provided in one or more numbers according to the number of cooling holes 5 to be locally cooled. The first cooling branch pipe 2 is welded to the first cooling ring 1, and the second cooling branch pipe 4 is welded to the second cooling ring 3.
In some embodiments, as shown in FIG. 1, a water-cooling double-ring structure with a simple structure is adopted, a first cooling branch pipe 2 with a diameter of 6-10mm is arranged on a first cooling ring 1 with a diameter of 12-16mm, and the first cooling branch pipe 2 passes through a second cooling ring 3 with a diameter of 16-20mm and a second cooling branch pipe 4 with a diameter of 10mm-14mm arranged on the second cooling ring 3 to reach a cooling hole 5 of a mold; the air inlet pipe 7 is connected to the first cooling ring 1, and the air outlet pipe 8 is connected to the second cooling ring 3.
Cooling medium flow path: the cooling medium (compressed air, cooling water, water mist or compressed air and water can be used alternatively) enters the first cooling ring 1 via the air inlet pipe 7, reaches the cooling holes 5 of the mold via the first branch cooling pipe 2, then returns to the second cooling ring 3 via the second branch cooling pipe 4, and is discharged via the air outlet pipe 8.
The number of the cooling holes 5, the second cooling branch pipes 4, and the first cooling branch pipes 2 on the mold is determined by the number of positions to be cooled, and generally, the number of the cooling holes 5, the second cooling branch pipes 4, and the first cooling branch pipes 2 on the mold is equal. The welding of the position shown by the welding point 6 is carried out according to the welding process requirement of the water-cooling die.
The closed-spot cooling configuration shown in fig. 1 is generally used in almost all cooling positions with a low-pressure casting hub mold, and the schematic layout of the closed-spot cooling configuration in the low-pressure casting hub mold is shown in fig. 2. The cooling positions T1, T2, T3, T5 and T6 of the low-pressure casting top die, the cooling positions B1, B2, B3, B4 and B5 of the bottom die and the cooling position S1 of the side die can all use the closed point cooling structure set forth by the utility model.
Compared with the prior art, the utility model discloses a low pressure casting aluminum alloy wheel mould closed point cooling structure has following advantage:
the structure is simple and reliable, and the manufacture is easy.
Secondly, the casting technology of the casting is met, and the cooling of a fixed-point cooling structure is enhanced in areas needing cooling, such as spoke and pouring gate positions; the blank metal-free locations are not cooled to.
Third, extensive applicability, the utility model discloses the coolant of the cold structure of closed point can use compressed air, cooling water, water smoke or compressed air and water in turn.
In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the scope of the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically connected, electrically connected or can communicate with each other; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. The utility model provides a low pressure casting aluminum alloy wheel mould closing point cooling structure, characterized in that, including setting up first cooling ring (1) and second cooling ring (3) in the mould, be connected with second cooling branch pipe (4) on second cooling ring (3), be connected with first cooling branch pipe (2) on first cooling ring (1), first cooling branch pipe (2) pass second cooling ring (3) and second cooling branch pipe (4) in proper order and reach cooling hole (5) that need local cooling on the mould, first cooling ring (1) with second cooling ring (3) communicate through first cooling branch pipe (2) and second cooling branch pipe (4).
2. The low pressure cast aluminum alloy wheel mold closing point cooling structure as claimed in claim 1, wherein the first cooling ring (1) communicates with an air inlet pipe (7) and the second cooling ring (3) communicates with an air outlet pipe (8).
3. The low pressure cast aluminum alloy wheel mold closing point cooling structure as claimed in claim 2, wherein the diameter of the second cooling ring (3) is larger than the diameter of the first cooling ring (1).
4. The low pressure cast aluminum alloy wheel mold closing point cooling structure of claim 3, further comprising a cooling medium comprising one or more of compressed air, cooling water, water mist.
5. The low pressure casting aluminum alloy wheel mold closing point cooling structure according to claim 4, characterized in that the first branch cooling pipe (2) and the second branch cooling pipe (4) may be provided in one or more number according to the number of cooling holes (5) to be locally cooled.
6. The low pressure cast aluminum alloy wheel mold closing point cooling structure according to claim 4, wherein the first branch cooling pipe (2) is welded to the first cooling ring (1), and the second branch cooling pipe (4) is welded to the second cooling ring (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022495141.9U CN214814716U (en) | 2020-11-03 | 2020-11-03 | Low pressure casting aluminum alloy wheel mould closed point cooling structure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022495141.9U CN214814716U (en) | 2020-11-03 | 2020-11-03 | Low pressure casting aluminum alloy wheel mould closed point cooling structure |
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| Publication Number | Publication Date |
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| CN214814716U true CN214814716U (en) | 2021-11-23 |
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| CN202022495141.9U Active CN214814716U (en) | 2020-11-03 | 2020-11-03 | Low pressure casting aluminum alloy wheel mould closed point cooling structure |
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