Mould combination for producing battery box shell

Abstract

The utility model relates to the technical field of casting molds, and discloses a mold assembly for producing a battery box shell, which comprises a base, a positioning rod fixedly connected with the upper end of the base, an oil cylinder fixedly connected with the upper end of the base, and a hydraulic spring buffer fixedly connected with the upper end of the base. According to the mold assembly for battery box shell production, cooling liquid is circularly injected through the first pipe opening and the second pipe opening after casting is completed, the upper mold body is circularly cooled, the forming speed of the battery box shell is increased, a plurality of lower sprues are arranged, casting liquid is evenly injected into the mold cavity through the lower sprues after being injected through the upper sprues, the forming effect is improved, and the production efficiency is improved. During casting, the oil cylinder is started to drive the lower mold body to move upwards until the lower mold body is tightly matched with the mold top, the upper mold body tightly covers the upper end of the lower mold body, casting liquid is injected through the upper sprue until the battery box shell is formed, the oil cylinder is started to drive the lower mold body to descend, and the mold top ejects the battery box shell out.

Description

Technical Field

[0001] The utility model relates to the technical field of casting molds, in particular to a mold combination used for producing a battery box shell. Background Art

[0002] Nowadays, the new energy industry is developing rapidly. The battery box shell is a shell structure used to store and protect battery components. It is mainly used in new energy vehicles such as electric vehicles and hybrid vehicles. Its design and manufacturing involve battery safety, heat dissipation, structural strength and other aspects. A mold combination is usually required during the production of the battery box shell.

[0003] China Invention Patent Publication No.: CN 107774921A, discloses: a mold assembly for a sleeve with a side hole, the mold assembly for a sleeve with a side hole, when in use, the fixed mold core and the movable mold core are assembled into a whole in a way that their inner surfaces are aligned and fitted with each other, and connected with screws and pins, etc., and the liquid metal is gradually injected into the mold cavity through the diverter cone and the barrel, and multiple castings can be cast at one time. The beneficial effects of the present invention are: simple structure, high mold closing accuracy, high casting quality, but the structure of the mold assembly is relatively complex, the manufacturing cost is high, and it is not convenient to demold the product after casting, which reduces the casting efficiency. Summary of the invention

[0004] The technical problem to be solved by the utility model is to provide a mold combination for producing a battery box shell, which can effectively solve the problems in the prior art that it is inconvenient to demould after the casting is completed, thereby reducing the casting efficiency.

[0005] The technical solution adopted by the utility model is: a mold assembly for producing a battery box shell, comprising a base, the upper end of the base is fixedly connected to a positioning rod, the upper end of the base is fixedly connected to an oil cylinder, the upper end of the base is fixedly connected to a hydraulic spring buffer, the upper end of the base is fixedly connected to a support rod, the upper end of the support rod is fixedly connected to a mold top, a sealing groove is provided at the lower end of the mold top, a lower mold assembly is arranged above the base, and an upper mold assembly is arranged above the lower mold assembly;

[0006] The lower die assembly comprises a lower die body, a positioning groove, a convex edge, a lower die groove and a limiting groove, wherein the upper end of the lower die body is provided with a positioning groove, the upper end of the lower die body is provided with a convex edge, the upper end of the lower die body is provided with a lower die groove, and the upper end of the lower die groove is provided with a limiting groove;

[0007] The upper mold assembly includes an upper mold body, a positioning column, a groove, an upper mold groove, a lower gate, an upper gate, a pipe mouth 1 and a pipe mouth 2. The lower end of the upper mold body is fixedly connected to the positioning column, the lower end of the upper mold body is provided with a groove, the lower end of the groove is provided with an upper mold groove, the lower end of the upper mold groove is provided with a plurality of lower gates, the upper end of the upper mold body is provided with an upper gate, the front and rear ends of the upper mold body are fixedly connected to the pipe mouth 1, and the left and right ends of the upper mold body are fixedly connected to the pipe mouth 2.

[0008] Preferably, the lower mold body and the upper mold body are both slidably connected to the positioning rod, and the oil cylinders are provided with four identical ones, and the output ends of the oil cylinders are fixedly connected to the lower mold body.

[0009] Through the above technical solution, a positioning rod is set, and the lower mold body and the upper mold body are assisted in closing the mold through the positioning rod to avoid the lower mold body and the upper mold body from offsetting. A cylinder is set to control the position of the lower mold body through the cylinder, and the adjustment is simple.

[0010] Preferably, the positioning groove is matched with the positioning column, an annular groove is provided on the outer side of the positioning column, and the convex edge is matched with the groove.

[0011] Through the above technical scheme, positioning grooves and positioning columns are set. During the process of closing the lower mold body and the upper mold body, the positioning column is inserted into the positioning groove. The annular groove on the outside of the positioning column prevents the lower mold body from being difficult to separate from the upper mold body after closing the mold. When the lower mold body and the upper mold body are closed, the convex edge is inserted into the groove, and multiple positioning structures are used to ensure precise mold closing.

[0012] Preferably, the corresponding two pipe openings 1 are fixedly connected by a pipeline penetrating the upper mold body, and the corresponding two pipe openings 2 are fixedly connected by a pipeline penetrating the upper mold body, and the upper gate is interconnected with multiple lower gates.

[0013] Through the above technical scheme, nozzle one and nozzle two are set, and the external water channel is connected to nozzle one and nozzle two. After the casting is completed, the coolant is circulated and injected through nozzle one and nozzle two to circulate and cool the upper mold body, thereby improving the molding speed of the battery box shell. Multiple lower gates are set, and the casting liquid is injected through the upper gate and then evenly injected into the mold cavity through the lower gate to improve the molding effect.

[0014] Preferably, the mold top, the lower mold groove and the upper mold groove together constitute a mold cavity, and the sealing groove is matched with the limiting groove.

[0015] Through the above technical scheme, a mold top is set. When casting is carried out, the oil cylinder is started to drive the lower mold body upward until the lower mold body is closely matched with the mold top, the sealing groove is in close contact with the limit groove, the upper mold body is tightly covered on the upper end of the lower mold body, and the casting liquid is injected through the upper gate until the battery box shell is formed. The oil cylinder is started to drive the lower mold body to descend, and the mold top pushes out the battery box shell, and the demoulding effect is good. A hydraulic spring buffer is set to buffer the lower end of the lower mold body to avoid damage to the lower mold body.

[0016] Compared with the prior art, the utility model provides a mold assembly for producing a battery box shell, which has the following beneficial effects:

[0017] 1. The mold combination for producing the battery box shell is provided with a positioning rod. The lower mold body and the upper mold body are assisted in mold closing by the positioning rod to avoid the deviation of the lower mold body and the upper mold body. An oil cylinder is provided to control the position of the lower mold body through the oil cylinder. The adjustment is simple. A positioning groove and a positioning column are provided. During the mold closing process of the lower mold body and the upper mold body, the positioning column is inserted into the positioning groove. The annular groove outside the positioning column is to avoid the difficulty in separating the lower mold body and the upper mold body after the mold closing. When the lower mold body and the upper mold body are molded, the convex edge is inserted into the groove. A variety of positioning structures ensure accurate mold closing.

[0018] 2. The mold combination for producing the battery box shell is provided with a nozzle 1 and a nozzle 2, and an external water channel is connected to the nozzle 1 and the nozzle 2. After the casting is completed, the coolant is circulated and injected through the nozzle 1 and the nozzle 2 to circulate and cool the upper mold body, thereby improving the molding speed of the battery box shell. A plurality of lower gates are provided. After the casting liquid is injected through the upper gate, it is evenly injected into the mold cavity through the lower gate to improve the molding effect. A mold top is provided. When casting, the oil cylinder is started to drive the lower mold body upward until the lower mold body is closely matched with the mold top, and the sealing groove is in close contact with the limit groove. The upper mold body is tightly covered on the upper end of the lower mold body, and the casting liquid is injected through the upper gate until the battery box shell is formed. The oil cylinder is started to drive the lower mold body to descend, and the mold top pushes the battery box shell out, so that the demoulding effect is good. A hydraulic spring buffer is provided to buffer the lower end of the lower mold body to avoid damaging the lower mold body. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 The three-dimensional structure of the utility model is shown in FIG. Figure 1 ;

[0020] Figure 2 The three-dimensional structure of the utility model is shown in FIG. Figure 2 ;

[0021] Figure 3 This is a schematic diagram of the disassembly structure of the upper mold assembly and the lower mold assembly of the utility model;

[0022] Figure 4This is a schematic diagram of the split structure of the lower mold assembly and the mold top of the utility model;

[0023] Figure 5 This is a schematic diagram of the split structure of the upper mold assembly of the utility model;

[0024] Figure 6 It is a three-dimensional cross-sectional structural schematic diagram of the upper mold assembly and the lower mold assembly of the utility model.

[0025] Among them: 1. base; 2. positioning rod; 3. cylinder; 4. hydraulic spring buffer; 5. support rod; 6. mold top; 7. sealing groove; 8. lower mold assembly; 801. lower mold body; 802. positioning groove; 803. convex edge; 804. lower mold groove; 805. limit groove; 9. upper mold assembly; 901. upper mold body; 902. positioning column; 903. groove; 904. upper mold groove; 905, lower gate; 906. upper gate; 907. nozzle one; 908. nozzle two. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] Embodiment 1: Figure 1-6 As shown, the utility model provides a mold assembly for producing a battery box shell, including a base 1, the upper end of the base 1 is fixedly connected to a positioning rod 2, the upper end of the base 1 is fixedly connected to an oil cylinder 3, the upper end of the base 1 is fixedly connected to a hydraulic spring buffer 4, the upper end of the base 1 is fixedly connected to a support rod 5, the upper end of the support rod 5 is fixedly connected to a mold top 6, a sealing groove 7 is provided at the lower end of the mold top 6, a lower mold assembly 8 is arranged above the base 1, and an upper mold assembly 9 is arranged above the lower mold assembly 8.

[0028] Specifically, the lower mold assembly 8 includes a lower mold body 801, a positioning groove 802, a convex edge 803, a lower mold groove 804 and a limiting groove 805. The upper end of the lower mold body 801 is provided with a positioning groove 802, the upper end of the lower mold body 801 is provided with a convex edge 803, the upper end of the lower mold body 801 is provided with a lower mold groove 804, and the upper end of the lower mold groove 804 is provided with a limiting groove 805. The advantage is that the lower mold assembly 8 is provided, and the lower mold assembly 8 and the mold top 6 are combined into a complete lower mold, which is convenient for demoulding.

[0029] Specifically, the upper mold assembly 9 includes an upper mold body 901, a positioning column 902, a groove 903, an upper mold groove 904, a lower gate 905, an upper gate 906, a nozzle 1 907 and a nozzle 2 908. The lower end of the upper mold body 901 is fixedly connected to the positioning column 902, the lower end of the upper mold body 901 is provided with a groove 903, the lower end of the groove 903 is provided with an upper mold groove 904, the lower end of the upper mold groove 904 is provided with a plurality of lower gates 905, the upper end of the upper mold body 901 is provided with an upper gate 906, the front and rear ends of the upper mold body 901 are fixedly connected to the nozzle 1 907, and the left and right ends of the upper mold body 901 are fixedly connected to the nozzle 2 908. The advantage is that the upper mold assembly 9 is provided, and the upper mold assembly 9 is provided with a cooling pipeline to improve the casting efficiency of the mold.

[0030] Specifically, the lower mold body 801 and the upper mold body 901 are both slidably connected to the positioning rod 2, and the oil cylinder 3 is provided with four identical ones, and the output end of the oil cylinder 3 is fixedly connected to the lower mold body 801. The advantage is that the positioning rod 2 is provided, and the lower mold body 801 and the upper mold body 901 are assisted in mold closing by the positioning rod 2 to avoid the lower mold body 801 and the upper mold body 901 from offsetting, and the oil cylinder 3 is provided to control the position of the lower mold body 801 through the oil cylinder 3, and the adjustment is simple.

[0031] Embodiment 2: Figure 2-6 As shown, as an improvement to the previous embodiment.

[0032] Specifically, the positioning groove 802 is matched with the positioning column 902, and an annular groove is provided on the outer side of the positioning column 902, and the convex edge 803 is matched with the groove 903. The advantage is that the positioning groove 802 and the positioning column 902 are provided, and during the process of the lower mold body 801 and the upper mold body 901 being molded together, the positioning column 902 is inserted into the positioning groove 802, and the annular groove on the outer side of the positioning column 902 is to prevent the lower mold body 801 and the upper mold body 901 from being difficult to separate after being molded together. When the lower mold body 801 and the upper mold body 901 are molded together, the convex edge 803 is inserted into the groove 903, and multiple positioning structures are used to ensure accurate mold bonding.

[0033] Specifically, the corresponding two nozzles 1 907 are fixedly connected by a pipeline penetrating the upper mold body 901, and the corresponding two nozzles 2 908 are fixedly connected by a pipeline penetrating the upper mold body 901, and the upper gate 906 is interconnected with multiple lower gates 905. The advantage is that nozzles 1 907 and nozzles 2 908 are provided, and the external water channel connects nozzles 1 907 and nozzles 2 908. After the casting is completed, the coolant is circulated and injected through nozzles 1 907 and nozzles 2 908, and the upper mold body 901 is circulated and cooled, and the molding speed of the battery box shell is improved. Multiple lower gates 905 are provided, and the casting liquid is injected through the upper gate 906 and then uniformly injected into the mold cavity through the lower gate 905, thereby improving the molding effect.

[0034] Specifically, the die top 6, the lower die groove 804 and the upper die groove 904 together form a die cavity, and the sealing groove 7 is matched with the limiting groove 805. The advantage is that the die top 6 is provided, and when casting is performed, the oil cylinder 3 is started to drive the lower die body 801 upward until the lower die body 801 is closely matched with the die top 6, the sealing groove 7 is in close contact with the limiting groove 805, the upper die body 901 is tightly covered on the upper end of the lower die body 801, and the casting liquid is injected through the upper gate 906 until the battery box shell is formed, the oil cylinder 3 is started to drive the lower die body 801 to descend, and the die top 6 pushes the battery box shell out, and the demoulding effect is good. A hydraulic spring buffer 4 is provided to buffer the lower end of the lower die body 801 to avoid damaging the lower die body 801.

[0035] Working principle: When in use, the oil cylinder 3 is started to drive the lower mold body 801 upward until the lower mold body 801 is closely matched with the mold top 6, the sealing groove 7 is in close contact with the limit groove 805, and the upper mold body 901 is tightly covered on the upper end of the lower mold body 801 through the positioning rod 2. During the process of the lower mold body 801 and the upper mold body 901 being molded together, the positioning column 902 is inserted into the positioning groove 802. The annular groove on the outer side of the positioning column 902 is to prevent the lower mold body 801 from being difficult to separate from the upper mold body 901 after the mold is molded together. When the lower mold body 801 and the upper mold body 901 are molded together, the positioning column 902 is inserted into the positioning groove 802. The annular groove on the outer side of the positioning column 902 is to prevent the lower mold body 801 from being difficult to separate from the upper mold body 901 after the mold is closed. During molding, the convex edge 803 is inserted into the groove 903, and a variety of positioning structures are used to ensure accurate molding. Casting liquid is injected through the upper gate 906 until the battery box shell is formed, and the coolant is circulated and injected through the nozzle 1 907 and the nozzle 2 908 to circulate and cool the upper mold body 901 to increase the molding speed of the battery box shell. The oil cylinder 3 is started to drive the lower mold body 801 to descend, and the mold top 6 pushes the battery box shell out, with good demoulding effect. A hydraulic spring buffer 4 is provided to buffer the lower end of the lower mold body 801 to avoid damage to the lower mold body 801.

[0036] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A mold assembly for producing a battery box shell, comprising a base (1), characterized in that: The upper end of the base (1) is fixedly connected to the positioning rod (2), the upper end of the base (1) is fixedly connected to the oil cylinder (3), the upper end of the base (1) is fixedly connected to the hydraulic spring buffer (4), the upper end of the base (1) is fixedly connected to the support rod (5), the upper end of the support rod (5) is fixedly connected to the mold top (6), the lower end of the mold top (6) is provided with a sealing groove (7), a lower mold assembly (8) is arranged above the base (1), and an upper mold assembly (9) is arranged above the lower mold assembly (8); The lower die assembly (8) comprises a lower die body (801), a positioning groove (802), a convex edge (803), a lower die groove (804) and a limiting groove (805); the upper end of the lower die body (801) is provided with a positioning groove (802); the upper end of the lower die body (801) is provided with a convex edge (803); the upper end of the lower die body (801) is provided with a lower die groove (804); and the upper end of the lower die groove (804) is provided with a limiting groove (805); The upper mold assembly (9) comprises an upper mold body (901), a positioning column (902), a groove (903), an upper mold groove (904), a lower gate (905), an upper gate (906), a pipe mouth 1 (907) and a pipe mouth 2 (908); the lower end of the upper mold body (901) is fixedly connected to the positioning column (902); the lower end of the upper mold body (901) is provided with a groove (903); the lower end of the groove (903) is provided with an upper mold groove (904); the lower end of the upper mold groove (904) is provided with a plurality of lower gates (905); the upper end of the upper mold body (901) is provided with an upper gate (906); the front and rear ends of the upper mold body (901) are fixedly connected to the pipe mouth 1 (907); and the left and right ends of the upper mold body (901) are fixedly connected to the pipe mouth 2 (908); The lower die body (801) and the upper die body (901) are both slidably connected to the positioning rod (2), and the oil cylinder (3) is provided with four identical ones, and the output end of the oil cylinder (3) is fixedly connected to the lower die body (801); The positioning groove (802) is matched with the positioning column (902), an annular groove is provided on the outer side of the positioning column (902), and the convex edge (803) is matched with the groove (903); The corresponding two pipe openings 1 (907) are fixedly connected via a pipeline penetrating the upper mold body (901), and the corresponding two pipe openings 2 (908) are fixedly connected via a pipeline penetrating the upper mold body (901), and the upper gate (906) and the plurality of lower gates (905) are interconnected; The mold top (6), the lower mold groove (804) and the upper mold groove (904) together form a mold cavity, and the sealing groove (7) is matched with the limiting groove (805).

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