An automobile transmission casting mold

Abstract

The utility model relates to transmission casting technical field, and disclose a kind of automobile transmission casting mould, including mainboard, the first connecting frame is fixedly connected in mainboard top, and the fixed mould is clamped in the inner wall of first connecting frame, and the second connecting frame is slidably connected in the side wall of mainboard, and the movable mould is clamped in the inner wall of second connecting frame, and the cooling assembly is installed in mainboard top, and the cooling assembly includes water storage tank, and water storage tank is fixedly installed in mainboard top, and the fixed mould and movable mould inside are each provided with cavity, and the first connecting pipe is fixedly connected in water storage tank top, and the first connecting hose is fixedly connected in the side wall of first connecting pipe both sides, and first connecting hose extends to fixed mould and movable mould inner cavity respectively;The automobile transmission casting mould, water in the inner cavity of water storage tank is injected into the inner cavity of fixed mould and movable mould by first connecting pipe and first connecting hose, to cool and shape the metal solution in the middle of fixed mould and movable mould, accelerate the speed of molding while facilitating subsequent stripping.

Description

Technical Field

[0001] This utility model relates to the field of gearbox casting technology, specifically to a casting mold for an automotive gearbox. Background Technology

[0002] A casting mold is a tool used to create a part's structural shape by first shaping it with other easily formable materials. This shape is then placed in a sand mold, creating a cavity with dimensions identical to the part's structure. A fluid liquid is poured into this cavity, and after cooling and solidifying, a part with the exact same shape and structure as the mold is formed. Traditional casting molds have poor cooling, resulting in slow injection molding of the material within the mold. Publication number CN 221109808 U discloses a casting mold for an automotive gearbox, comprising an operating table. A base is fixedly connected to the upper surface of the operating table, and a slide rail is fixedly connected to the upper surface of the base. Drive mechanisms are fixedly connected to both the front and back of the slide rail, with two drive mechanisms arranged symmetrically. A mold assembly is positioned above the slide rail. There are two slide rails and two mold assemblies. Each mold assembly includes an outer shell slidably connected to the upper surface of the slide rail, and a cooling mechanism is located inside the outer shell. The above structure, by setting a cooling mechanism, by setting heat dissipation fins to evenly bear the heat generated inside during casting, and by using airflow generated by a fan to carry away the heat, achieves a cooling effect, avoids the unevenness caused by water cooling, prevents the generation of residual stress, and makes the casting more stable and solid.

[0003] The above solution has the following shortcomings: The above solution achieves cooling by setting heat dissipation fins to evenly bear the heat generated inside during casting and using airflow generated by a fan to remove the heat. However, the cooling effect is weak, and after the outer shell is cooled and manufactured, it will stick to the mold surface and be difficult to demold. Utility Model Content

[0004] In view of the shortcomings of the existing technology, this utility model provides an automotive gearbox casting mold that has the advantage of easy mold cooling, avoiding the problems of poor cooling effect and difficulty in demolding.

[0005] To facilitate the cooling of the mold, this utility model provides the following technical solution:

[0006] An automotive transmission casting mold includes a main board, a first connecting frame fixedly connected to the top of the main board, a fixed mold being engaged with the inner wall of the first connecting frame, a second connecting frame slidably connected to the side wall of the main board, a moving mold being engaged with the inner wall of the second connecting frame, a cooling assembly mounted on the top of the main board, and further comprising:

[0007] The cooling assembly includes a water storage tank, which is fixedly installed on the top of the main board. Both the fixed mold and the moving mold have cavities inside. A first connecting pipe is fixedly connected to the top of the water storage tank. First connecting hoses are fixedly connected to both sides of the first connecting pipe, and the first connecting hoses extend to the cavities of the fixed mold and the moving mold, respectively.

[0008] According to some embodiments, a recovery cooling tank is fixedly connected to the bottom of the main board, a second connecting pipe is fixedly connected to the side wall of the recovery cooling tank, and a second connecting hose is fixedly connected to both side walls of the second connecting pipe, and the second connecting hose extends to the inner cavity of the fixed mold and the moving mold respectively. A third connecting pipe is fixedly connected between the recovery cooling tank and the water storage tank, and a negative pressure pump is provided at the end of the first connecting pipe, the second connecting pipe and the third connecting pipe.

[0009] According to some embodiments, the first connecting frame has slots around its surface, and the second connecting frame has posts fixedly connected around its surface. The posts can extend into the inner cavity of the slots and correspond one-to-one. The main board sidewall is fixedly connected to a telescopic motor, and the output end of the telescopic motor is fixedly connected to the second connecting frame.

[0010] Beneficial effects

[0011] This utility model provides a casting mold for an automotive transmission, which has the following advantages:

[0012] (1) The automobile gearbox casting mold injects water from the inner cavity of the water tank into the inner cavities of the fixed mold and the moving mold through the first connecting pipe and the first connecting hose to cool and shape the molten metal between the fixed mold and the moving mold, thereby accelerating the molding speed and facilitating subsequent demolding.

[0013] (2) The automotive gearbox casting mold can use a negative pressure pump to draw the overheated cooling water in the fixed mold and moving mold cavity into the recovery cooling box cavity for cooling through the second connecting hose and the second connecting pipe. Then, the water in the recovery cooling box cavity is injected into the water storage tank through the third connecting pipe, so that the cooling water can be reused. Attached Figure Description

[0014] Figure 1 This is a front view of the device of this utility model;

[0015] Figure 2 This is a schematic diagram of the rear structure of the device of this utility model;

[0016] Figure 3 This is a schematic diagram (top view) of the structure of the device of this utility model;

[0017] Figure 4 This is a cross-sectional structural diagram of the fixed mold of this utility model.

[0018] In the diagram: 1. Main board; 101. First connecting frame; 102. Fixed mold; 103. Second connecting frame; 104. Moving mold; 2. Cooling assembly; 201. Water storage tank; 202. Cavity; 203. First connecting pipe; 204. First connecting hose; 3. Recycling cooling tank; 301. Second connecting pipe; 302. Second connecting hose; 303. Third connecting pipe; 304. Negative pressure pump; 4. Slot; 401. Locking post; 402. Telescopic motor. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Reference Figures 1-4 A casting mold for an automotive transmission includes a main board 1, a first connecting bracket 101 fixedly connected to the top of the main board 1, a fixed mold 102 snapped into the inner wall of the first connecting bracket 101, a second connecting bracket 103 slidably connected to the side wall of the main board 1, a moving mold 104 snapped into the inner wall of the second connecting bracket 103, a cooling assembly 2 mounted on the top of the main board 1, and further includes:

[0021] The cooling assembly 2 includes a water storage tank 201, which is fixedly installed on the top of the main board 1. Both the fixed mold 102 and the moving mold 104 are provided with cavities 202. The top of the water storage tank 201 is fixedly connected to a first connecting pipe 203. Both sides of the first connecting pipe 203 are fixedly connected to first connecting hoses 204, which extend into the cavities of the fixed mold 102 and the moving mold 104 respectively.

[0022] It should be noted that: the fixed mold 102 and the moving mold 104 are respectively snapped into the inner walls of the first connecting frame 101 and the second connecting frame 103. Driving the second connecting frame 103 to slide can snap the fixed mold 102 and the moving mold 104 into each other and close them. Then, molten metal is injected into the middle of the fixed mold 102 and the moving mold 104 to make the housing of the gearbox. At this time, water in the inner cavity of the water tank 201 can be injected into the inner cavity of the fixed mold 102 and the moving mold 104 through the first connecting pipe 203 and the first connecting hose 204 to cool and shape the molten metal in the middle of the fixed mold 102 and the moving mold 104, which speeds up the molding speed and facilitates subsequent demolding.

[0023] Reference Figures 1-4 The bottom of the motherboard 1 is fixedly connected to a recovery cooling box 3, and the side wall of the recovery cooling box 3 is fixedly connected to a second connecting pipe 301;

[0024] The second connecting pipe 301 is fixedly connected to the side walls on both sides with the second connecting hose 302, and the second connecting hose 302 extends to the inner cavity on the other side of the fixed mold 102 and the moving mold 104 respectively.

[0025] A third connecting pipe 303 is fixedly connected between the recovery cooling tank 3 and the water storage tank 201. A negative pressure pump 304 is installed at the end of the first connecting pipe 203, the second connecting pipe 301 and the third connecting pipe 303.

[0026] It should be noted that the negative pressure pump 304 can be used to draw the overheated cooling water in the cavity of the fixed mold 102 and the moving mold 104 into the cavity of the recovery cooling tank 3 through the second connecting hose 302 and the second connecting pipe 301 for cooling. Then, the water in the cavity of the recovery cooling tank 3 is injected into the water storage tank 201 through the third connecting pipe 303, so that the cooling water can be reused.

[0027] Reference Figures 1-4 The first connecting frame 101 has slots 4 around its surface, and the second connecting frame 103 has pins 401 fixedly connected around its surface. The pins 401 can extend into the inner cavity of the slots 4 and correspond one-to-one.

[0028] A telescopic motor 402 is fixedly connected to the side wall of the main board 1, and the output end of the telescopic motor 402 is fixedly connected to the second connecting bracket 103.

[0029] It should be noted that the telescopic motor 402 can drive the second connecting frame 103 to move towards the first connecting frame 101. The locking post 401 and the locking slot 4 are positioned to each other, thereby closing the fixed mold 102 and the moving mold 104.

[0030] Operation method: The fixed mold 102 and the moving mold 104 are respectively snapped into the inner walls of the first connecting frame 101 and the second connecting frame 103. The second connecting frame 103 can be driven to move towards the first connecting frame 101 by the telescopic motor 402. The fixed mold 102 and the moving mold 104 are positioned by the locking post 401 and the locking groove 4, thereby closing the mold. Molten metal is then injected into the space between the fixed mold 102 and the moving mold 104 to make the gearbox housing. At this time, water in the inner cavity of the water tank 201 can be injected into the inner cavity of the fixed mold 102 and the moving mold 104 through the first connecting pipe 203 and the first connecting hose 204 to cool and shape the molten metal in the space between the fixed mold 102 and the moving mold 104, thereby speeding up the molding speed and facilitating subsequent demolding.

[0031] Simultaneously, the negative pressure pump 304 can be used to draw the overheated cooling water in the cavity of the fixed mold 102 and the moving mold 104 into the cavity of the recovery cooling tank 3 through the second connecting hose 302 and the second connecting pipe 301 for cooling. Then, the water in the cavity of the recovery cooling tank 3 is injected into the water storage tank 201 through the third connecting pipe 303, so that the cooling water can be reused.

[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A casting mold for an automotive transmission, comprising a main board (1), characterized in that: The motherboard (1) is fixedly connected to the top of a first connecting frame (101), and a fixed mold (102) is snapped into the inner wall of the first connecting frame (101). A second connecting frame (103) is slidably connected to the side wall of the motherboard (1), and a moving mold (104) is snapped into the inner wall of the second connecting frame (103). A cooling assembly (2) is installed on the top of the motherboard (1). The system also includes: The cooling assembly (2) includes a water storage tank (201), which is fixedly installed on the top of the main board (1). Both the fixed mold (102) and the moving mold (104) have cavities (202). The top of the water storage tank (201) is fixedly connected to a first connecting pipe (203). Both sides of the first connecting pipe (203) are fixedly connected to first connecting hoses (204), and the first connecting hoses (204) extend into the cavities of the fixed mold (102) and the moving mold (104), respectively.

2. The automotive gearbox casting mold according to claim 1, characterized in that: The bottom of the main board (1) is fixedly connected to a recovery cooling box (3), and the side wall of the recovery cooling box (3) is fixedly connected to a second connecting pipe (301).

3. The automotive gearbox casting mold according to claim 2, characterized in that: The second connecting pipe (301) has a second connecting hose (302) fixedly connected to both sides of its sidewalls, and the second connecting hose (302) extends to the inner cavity of the other side of the fixed mold (102) and the moving mold (104), respectively.

4. The automotive gearbox casting mold according to claim 3, characterized in that: A third connecting pipe (303) is fixedly connected between the recovery cooling tank (3) and the water storage tank (201). A negative pressure pump (304) is provided at the end of the first connecting pipe (203), the second connecting pipe (301) and the third connecting pipe (303).

5. The automotive gearbox casting mold according to claim 4, characterized in that: The first connecting frame (101) has slots (4) around its surface, and the second connecting frame (103) has pins (401) fixedly connected around its surface. The pins (401) can extend into the inner cavity of the slots (4) and correspond one-to-one.

6. The automotive gearbox casting mold according to claim 5, characterized in that: A telescopic motor (402) is fixedly connected to the side wall of the main board (1), and the output end of the telescopic motor (402) is fixedly connected to the second connecting frame (103).

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