Aluminum alloy shell casting mold

Abstract

The utility model provides an aluminum alloy shell casting mold. The aluminum alloy shell casting mold comprises an upper mold plate and a lower mold plate which are connected in a matched mode. A runner II is formed in the surface of the upper mold plate, and a mounting groove I and a mounting groove II are formed in the surface of the upper mold plate; a sand core I and a sand core II are mounted in the mounting groove I and the mounting groove II; the sand core I is detachably connected with the sand core II; a cavity is formed in the surface of the lower die plate, and a cavity used for casting is formed among the cavity, the first sand core and the second sand core. A runner I is arranged on the surface of the lower mold plate, and is matched with the runner II to form a sprue; the pouring gate is communicated with the cavity; a pouring basin is arranged on the side portion of the lower die plate and communicated with the pouring gate. According to the aluminum alloy shell casting mold, the two detachable sand cores are arranged, so that an aluminum alloy product internally provided with an air channel can be effectively cast, and mold removal is convenient; meanwhile, the pouring gate and the pouring basin are compact in structure, comprehensive casting is completed in a template rotating mode during casting, and rapidness and convenience are achieved.

Description

Technical Field

[0001] This utility model relates to the field of casting equipment technology, specifically to an aluminum alloy shell casting mold. Background Technology

[0002] Aluminum alloy shell casting mold is a tool used to manufacture aluminum alloy shells. Molten aluminum alloy is poured into the mold cavity and allowed to cool and solidify. After molding, the desired product is obtained by demolding.

[0003] However, in order to optimize the structure, reduce weight, or integrate functions, some aluminum alloy shells are designed with cavities to form air passages. When such aluminum alloy shells are cast using existing casting molds, they have the disadvantage of being difficult to demold. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide an aluminum alloy shell casting mold that can solve the existing problems.

[0005] To achieve the above objectives, the technical solution of this utility model is as follows:

[0006] This utility model is achieved through the following technical solution: an aluminum alloy shell casting mold, including an upper mold plate and a lower mold plate that are connected in a mating manner; the surface of the upper mold plate is provided with a flow channel II, and the surface of the upper mold plate is provided with an installation groove I and an installation groove II; a sand core I and a sand core II are installed in the installation groove I and the installation groove II; the sand core I and the sand core II are detachably connected.

[0007] The surface of the lower template forms a cavity, and the cavity forms a mold cavity for casting with the first sand core and the second sand core; the surface of the lower template is provided with a flow channel, and the first flow channel and the second flow channel cooperate to form a gate; the gate is connected to the mold cavity; the side of the lower template is provided with a sprue basin, and the sprue basin is connected to the gate.

[0008] Furthermore, the upper template has a second feeding channel at its surface edge; the lower template has a first feeding channel at its surface edge; the first feeding channel and the second feeding channel cooperate to form a third feeding riser.

[0009] Furthermore, the mounting groove is provided with a first feeding riser, and the upper template is provided with a second feeding riser at the center of its surface; the surface of the second sand core is perforated, and the perforation is connected to the second feeding riser.

[0010] Furthermore, positioning holes are formed on the surface of the upper template, and positioning posts are formed on the surface of the lower template; the positioning posts are connected to the positioning holes.

[0011] Furthermore, a cylindrical limiting post is provided on the side of the first sand core, and a cylindrical limiting hole is provided on the side of the second sand core; the limiting post is inserted into the limiting hole for disassembly and connection of the first sand core and the second sand core.

[0012] Furthermore, the upper template and the lower template are provided with locking components on their sides. The locking components include a baffle, a first spring, a first fixing plate, an insertion rod, a second fixing plate, a pressing plate, and a second spring. The second fixing plate is fixed to the side of the lower template, and the first fixing plate is fixed to the side of the upper template. An insertion rod is inserted into the interior of the first fixing plate, and a baffle is fixed to the top of the insertion rod. A first spring is provided between the baffle and the first fixing plate. A pressing plate is rotatably connected to the bottom side of the insertion rod, and one side of the pressing plate extends into the insertion rod. The pressing plate and the insertion rod are connected by the second spring.

[0013] Furthermore, the lower template is provided with a support member on its side, the support member including a rotary motor and a bracket; brackets are provided on both sides of the lower template, the brackets being used to support the lower template; a rotary motor is provided on the side of the bracket, and the output shaft of the rotary motor is connected to the lower template; the rotary motor is used to drive the lower template to rotate on the side of the bracket.

[0014] Compared with the prior art, the beneficial effects of this utility model include:

[0015] The aluminum alloy shell casting mold of this utility model is equipped with two detachable sand cores, which can effectively realize the casting of aluminum alloy products with internal air channels and facilitate demolding. At the same time, the gate and gate basin structure of this utility model are compact, and the casting is completed by rotating the template, which is fast and convenient.

[0016] This invention features multiple feeding risers that can provide additional molten aluminum. When the aluminum alloy casting shrinks in volume due to solidification, the liquid metal in the risers flows into the voids formed by the shrinkage of the casting under the action of gravity and pressure, thereby compensating for the shrinkage of the casting and effectively preventing defects such as shrinkage cavities and porosity.

[0017] The locking device between the upper and lower templates of this utility model fixes the two templates when the mold is closed, so as to facilitate rotational casting. After casting is completed, they can be separated simply by pressing, making the operation simple and convenient. Attached Figure Description

[0018] The disclosure of this utility model is illustrated with reference to the accompanying drawings. It should be understood that the drawings are for illustrative purposes only and are not intended to limit the scope of protection of this utility model. In the drawings, the same reference numerals are used to refer to the same parts. Wherein:

[0019] Figure 1This is a schematic diagram of the overall structure of an aluminum alloy shell casting mold according to the present invention;

[0020] Figure 2 This is a schematic diagram of the overall structure of the support component in an embodiment of this utility model;

[0021] Figure 3 This is a schematic diagram of the template structure in an embodiment of this utility model;

[0022] Figure 4 This is a schematic diagram of the connection between the template and the sand core in an embodiment of this utility model;

[0023] Figure 5 This is a structural diagram of the template in an embodiment of this utility model;

[0024] Figure 6 This is a schematic diagram of the structure of the template and sand core connection in an embodiment of this utility model;

[0025] Figure 7 This is an embodiment of the present utility model. Figure 1 An enlarged structural diagram at point A in the diagram;

[0026] Figure 8 This is a schematic diagram of the structure of two sand cores in an embodiment of this utility model;

[0027] Figure 9 This is a schematic diagram of the structure of two sand cores and an aluminum alloy product in an embodiment of this utility model;

[0028] Figure 10 This is a structural schematic diagram of an aluminum alloy product according to an embodiment of this utility model.

[0029] The diagram is labeled as follows: 1. Sprue bowl; 2. Lower mold plate; 21. Cavity; 22. Runner 1; 23. Feeding channel 1; 24. Positioning post; 3. Locking element; 31. Baffle; 32. Spring 1; 33. Fixing plate 1; 34. Insert rod; 35. Fixing plate 2; 36. Pressing plate; 37. Spring 2; 4. Upper mold plate; 41. Mounting groove 1; 42. Mounting groove 2; 43. Runner 2; 44. Feeding channel 2; 45. Feeding riser 1; 46. Feeding riser 2; 47. Positioning hole; 5. Support; 51. Rotary motor; 52. Bracket; 6. Sand core 1; 7. Sand core 2; 71. Perforation. Detailed Implementation

[0030] It is readily understood that, based on the technical solution of this utility model, those skilled in the art can propose various interchangeable structural methods and implementations without altering the essential spirit of this utility model. Therefore, the following detailed embodiments and accompanying drawings are merely illustrative descriptions of the technical solution of this utility model and should not be considered as the entirety of this utility model or as limitations or restrictions on the technical solution of this utility model.

[0031] An aluminum alloy shell casting mold, such as Figure 1 As shown, it includes an upper template 4 and a lower template 2 that are connected together;

[0032] The structure of the upper template 4 is as follows: Figure 5 As shown, specifically, the surface of the upper template 4 is provided with a flow channel 2 43, and the surface of the upper template 4 is provided with a mounting groove 1 41 and a mounting groove 2 42; a sand core 1 6 and a sand core 2 7 are installed in the mounting groove 1 41 and the mounting groove 2 42; as shown Figure 6 As shown, the first sand core 6 and the second sand core 7 are detachably connected; a cylindrical limiting post (not shown) is provided on the side of the first sand core 6, and a cylindrical limiting hole is provided on the side of the second sand core 7; the limiting post is inserted into the limiting hole for the detachable connection of the first sand core 6 and the second sand core 7, and after connection, as shown... Figure 8 As shown.

[0033] The lower template 2 is as follows Figure 3 As shown, the surface of the lower mold plate 2 forms a cavity 21, which, together with the first sand core 6 and the second sand core 7, forms a mold cavity for casting. The surface of the lower mold plate 2 is provided with a first flow channel 22, which, together with the second flow channel 43, forms a gate. The gate communicates with the mold cavity. A sprue basin 1 is provided on the side of the lower mold plate 2, and the sprue basin 1 communicates with the gate. The lower mold plate 2, when fitted with the first sand core 6 and the second sand core 7, forms the following... Figure 4 As shown.

[0034] To compensate for the shrinkage of the aluminum alloy shell casting and effectively prevent defects such as shrinkage cavities and porosity, a second shrinkage compensation channel 44 is provided at the surface edge of the upper template 4; a first shrinkage compensation channel 23 is provided at the surface edge of the lower template 2; the first shrinkage compensation channel 23 and the second shrinkage compensation channel 44 cooperate to form a third shrinkage compensation riser. A first shrinkage compensation riser 45 is provided in the mounting groove 41, and a second shrinkage compensation riser 46 is provided at the center of the surface of the upper template 4; a through hole 71 is opened on the surface of the second sand core 7, and the through hole 71 is connected to the second shrinkage compensation riser 46.

[0035] To facilitate positioning and opening / closing between the upper template 4 and the lower template 2, positioning holes 47 are formed on the surface of the upper template 4, and positioning posts 24 are formed on the surface of the lower template 2. The positioning posts 24 are engaged with the positioning holes 47. When the mold is closed, the positioning holes 47 are aligned with the positioning posts 24, ensuring greater accuracy when the two templates are closed.

[0036] To facilitate the rotation of the two molds and the casting process, locking elements 3 are provided on the sides of the upper mold 4 and the lower mold 2, such as... Figure 7 As shown, the locking component 3 includes a baffle 31, a first spring 32, a first fixing plate 33, an insertion rod 34, a second fixing plate 35, a pressing plate 36, and a second spring 37; the second fixing plate 35 is fixed to the side of the lower template 2, and the first fixing plate 33 is fixed to the side of the upper template 4; the insertion rod 34 is inserted into the inside of the first fixing plate 33, and the top of the insertion rod 34 is fixed with a baffle 31; a first spring 32 is provided between the baffle 31 and the first fixing plate 33; the bottom side of the insertion rod 34 is rotatably connected to the pressing plate 36, and one side of the pressing plate 36 extends into the insertion rod 34; the pressing plate 36 has a triangular cross-section, and the bottom end of the pressing plate 36 is rotatably connected to the insertion rod 34, and the pressing plate 36 and the insertion rod 34 are connected by the second spring 37. When the mold is closed, the baffle 31 is pressed. When the baffle 31 is pressed, the insertion rod 34 is inserted into the second fixed plate 35. When it is inserted, the pressing plate 36 is pressed, which presses the second spring 37. At this time, the first spring 32 is stretched. Until the pressing plate 36 is inserted completely through the second fixed plate 35, the pressing plate 36 pops out under the action of the second spring 37 to limit the movement. The insertion rod 34 is used to fix the first fixed plate 33 and the second fixed plate 35, thus achieving the fixed connection between the upper template 4 and the lower template 2.

[0037] To facilitate the rotational casting of the template, such as Figure 2 As shown, the lower template 2 is provided with a support member 5 on its side, the support member 5 including a rotary motor 51 and a bracket 52; the lower template 2 is provided with brackets 52 on both sides, the brackets 52 are used to support the lower template 2; the brackets 52 are provided with a rotary motor 51 on their side, and the output shaft of the rotary motor 51 is connected to the lower template 2; the rotary motor 51 is used to drive the lower template 2 to rotate on the side of the bracket 52.

[0038] In use, the positioning hole 47 is aligned with the positioning post 24, and the upper template 4 and lower template 2 are closed. After closure, the baffle 31 is pressed, causing the insertion rod 34 to be inserted into the second fixed plate 35. During insertion, the pressing plate 36 is pressed, causing the second spring 37 to be pressed, at which point the first spring 32 is stretched. This continues until the pressing plate 36 completely passes through the second fixed plate 35. At this point, the pressing plate 36 pops out under the action of the second spring 37 to limit its movement. The insertion rod 34 is used to fix the first fixed plate 33 and the second fixed plate 35, thus completing the fixation between the two templates. During casting, molten aluminum is taken by a robotic arm and placed in the pouring basin 1. When the pouring basin 1 is filled to 80% capacity, the rotary motor 51 is started. When the rotary motor 51 starts, it drives the entire template to slowly rotate, and the molten aluminum begins to flow into the cavity through the pouring gate due to gravity. When the mold is rotated to 90°, it is perpendicular to the bottom surface, and all the molten aluminum enters the cavity of the product. After heat preservation and solidification for a period of time (the heat preservation and solidification time depends on the product size and structure, usually 5-8 minutes), the rotary motor 51 is started to reverse and slowly return to horizontal. Then, by pressing the pressing plate 36, the upper template 4 is moved upward, opening the upper and lower templates, and the worker removes the product. Because the product's inner cavity cannot be demolded, and the product's internal layout contains air channels, two sand cores are needed for molding. After molding, the aluminum alloy shell is completely removed by separating the two sand cores. The molded aluminum alloy shell and sand cores are as follows: Figure 9 As shown; a cross-sectional view of the formed aluminum alloy shell is shown below. Figure 10 As shown.

[0039] This invention features two detachable sand cores, which effectively enable the casting of aluminum alloy products with internal air channels, facilitating easy demolding. Furthermore, the compact structure of the gating gate and gating basin allows for rapid and convenient casting by rotating the mold.

[0040] This invention features multiple feeding risers that can provide additional molten aluminum. When the aluminum alloy casting shrinks in volume due to solidification, the liquid metal in the risers flows into the voids formed by the shrinkage of the casting under the action of gravity and pressure, thereby compensating for the shrinkage of the casting and effectively preventing defects such as shrinkage cavities and porosity.

[0041] The locking device between the upper and lower templates of this utility model fixes the two templates when the mold is closed, so as to facilitate rotational casting. After casting is completed, they can be separated simply by pressing, making the operation simple and convenient.

[0042] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0043] In the description of this patent, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection or setting, a detachable connection or setting, or an integral connection or setting. Those skilled in the art can understand the specific meaning of the above terms in this patent according to the specific circumstances.

[0044] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying 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 this utility model, "several" means two or more, unless otherwise explicitly specified.

[0045] The technical scope of this utility model is not limited to the content described above. Those skilled in the art can make various modifications and variations to the above embodiments without departing from the technical concept of this utility model, and all such modifications and variations should fall within the protection scope of this utility model.

Claims

1. An aluminum alloy shell casting mold characterized in that: It comprises an upper mold plate (4) and a lower mold plate (2) connected in cooperation; the surface of the upper mold plate (4) is provided with a runner two (43), and the surface of the upper mold plate (4) is provided with a mounting groove one (41) and a mounting groove two (42); the mounting groove one (41) and the mounting groove two (42) are provided with a sand core one (6) and a sand core two (7); the sand core one (6) and the sand core two (7) are detachably connected; The surface of the lower mold plate (2) forms a cavity (21), and the cavity (21) and the sand core one (6) and the sand core two (7) form a mold cavity for casting; the surface of the lower mold plate (2) is provided with a runner one (22), and the runner one (22) and the runner two (43) cooperate to form a sprue; the sprue communicates with the mold cavity; the side of the lower mold plate (2) is provided with a sprue basin (1), and the sprue basin (1) communicates with the sprue.

2. An aluminum alloy housing casting mold according to claim 1, characterized by: The surface edge of the upper mold plate (4) is provided with a feeding channel two (44); the surface edge of the lower mold plate (2) is provided with a feeding channel one (23); the feeding channel one (23) and the feeding channel two (44) cooperate to form a feeding riser three.

3. An aluminum alloy housing casting mold according to claim 1, characterized by: The mounting groove one (41) is provided with a feeding riser one (45), and the center of the surface of the upper mold plate (4) is provided with a feeding riser two (46); the surface of the sand core two (7) is provided with a through hole (71), and the through hole (71) cooperates with the feeding riser two (46).

4. An aluminum alloy housing casting mold according to claim 1, characterized by: The surface of the upper mold plate (4) is provided with a positioning hole (47), and the surface of the lower mold plate (2) is provided with a positioning column (24); the positioning column (24) cooperates with the positioning hole (47).

5. An aluminum alloy housing casting mold according to claim 1, characterized by: The side of the sand core one (6) is provided with a cylindrical limiting column, and the side of the sand core two (7) is provided with a cylindrical limiting hole; the limiting column is inserted into the limiting hole for detachable connection of the sand core one (6) and the sand core two (7).

6. An aluminum alloy housing casting mold according to claim 1, characterized by: The side of the upper mold plate (4) and the lower mold plate (2) is provided with a locking piece (3), and the locking piece (3) comprises a baffle (31), a spring one (32), a fixed plate one (33), an insertion rod (34), a fixed plate two (35), a pressing plate (36) and a spring two (37); the side of the lower mold plate (2) is fixed with the fixed plate two (35), and the side of the upper mold plate (4) is fixed with the fixed plate one (33); the inside of the fixed plate one (33) is inserted with the insertion rod (34), and the top end of the insertion rod (34) is fixed with the baffle (31); the baffle (31) and the fixed plate one (33) are provided with the spring one (32); the bottom end side of the insertion rod (34) is rotatably connected with the pressing plate (36), and one side of the pressing plate (36) extends into the insertion rod (34); the pressing plate (36) and the insertion rod (34) are connected by the spring two (37).

7. An aluminum alloy housing casting mold according to claim 1, characterized by: The side of the lower mold plate (2) is provided with a support (5), the support (5) comprises a rotary motor (51) and a support (52); both sides of the lower mold plate (2) are provided with a support (52), the support (52) is used for supporting the lower mold plate (2); the side of the support (52) is provided with a rotary motor (51), and the output shaft of the rotary motor (51) is connected with the lower mold plate (2); the rotary motor (51) is used for driving the lower mold plate (2) to rotate at the side of the support (52).

Images