New energy automobile motor scroll pressure casting mold

Abstract

The utility model relates to motor scroll casing die casting mould technical field, concretely relates to a new energy automobile motor scroll casing die casting mould for making metal liquid into motor scroll casing body, including the fixed mould component of installing in the injection end of die casting machine, the movable mould component of installing in the movable end of die casting machine and the side surface forming assembly of installing between fixed mould component and movable mould component, the fixed mould component includes the fixed plate of installing in the injection end of die casting machine, the bottom fixed upper mould core board of fixed plate, and the bottom of upper mould core board is provided with upper mould core body, and a plurality of forming columns are arranged on the upper mould core body, the movable mould component includes two fixed bases of installing in the movable end of die casting machine, and the movable mould plate is fixed on the fixed base. The utility model is provided with upper mould core body and lower mould core body to realize the hole processing to the upper surface and the lower surface of motor scroll casing body, reduces the process of subsequent drilling.

Description

Technical Field

[0001] This utility model relates to the field of motor volute die casting mold technology, specifically a new energy vehicle motor volute die casting mold. Background Technology

[0002] As a key heat dissipation and protection component of the motor, the motor turbine housing not only plays a crucial role in guiding the flow of cooling medium and rapidly dissipating the motor's operating heat, but also needs to effectively protect the precision components inside the motor, such as the stator and rotor, from the intrusion of external dust, moisture, and other impurities. Given the stringent requirements for lightweighting in new energy vehicles, motor turbine housings are mostly made of lightweight, high-strength alloy materials such as aluminum alloys and magnesium alloys. Die casting technology, due to its advantages of high forming efficiency, good dimensional accuracy, and the ability to achieve integrated molding of complex structures, has become the mainstream processing method for mass production of motor turbine housings. The corresponding die casting mold is the core equipment for ensuring the forming quality and production efficiency of the turbine housing.

[0003] The existing method for machining motor volutes involves first die-casting a prototype volute shape without precise hole positions, and then machining processes such as drilling and tapping to create the target holes. This method not only increases the investment in machine tools and manual labor costs, but also extends the production cycle time. Utility Model Content

[0004] The purpose of this utility model is to provide a die-casting mold for the turbine housing of a new energy vehicle motor. By setting an upper core body and a lower core body, holes can be machined on the upper and lower surfaces of the motor turbine housing body, reducing the subsequent drilling process.

[0005] To address the problems of existing technologies, this utility model provides a die-casting mold for a new energy vehicle motor volute housing, used to form the motor volute housing body from molten metal. It includes a fixed mold assembly installed at the injection end of a die-casting machine, a moving mold assembly installed at the movable end of the die-casting machine, and a side forming assembly installed between the fixed mold assembly and the moving mold assembly. The fixed mold assembly includes a fixed template installed at the injection end of the die-casting machine. An upper core plate is fixed to the bottom of the fixed template, and an upper core body is provided at the bottom of the upper core plate. The upper core body has several forming pillars. The moving mold assembly includes two fixed seats installed at the movable end of the die-casting machine, and a moving template is fixed to the fixed seats. A lower core plate is fixed to the moving template, and a lower core body for forming is provided on the lower core plate. The lower core body has several forming pillars.

[0006] Preferably, the moving mold assembly includes mounting portions disposed on four sides of the moving mold plate, and the side forming assembly includes four side forming blocks respectively slidably disposed in the mounting portions, and the side forming blocks can move synchronously with the upper core body and the lower core body to form a cavity for forming the motor volute body.

[0007] Preferably, the side forming component further includes a bracket fixed to the side of the moving template, and a telescopic drive component is installed on the bracket, the output end of which is connected to the side of the side forming block.

[0008] Preferably, the side forming assembly includes a guide mounted on one of the side forming blocks, and the guide has a guide hole for guiding molten metal into the cavity. The fixed mold plate has a gate for the molten metal to pass through. When the fixed mold assembly and the moving mold assembly are closed, the guide can be inserted into the gate.

[0009] Preferably, the mounting part has a groove, and the bottom of the side molding block is fixed with a slide rail that matches the groove.

[0010] Preferably, the fixed template has guide holes around its bottom, and the moving template has a guide rod at its top that can cooperate with the guide holes.

[0011] Preferably, a push plate is fixed between the two fixed seats, and the push plate also has a push rod capable of pushing out the motor volute body.

[0012] Preferably, guide members are fixed on both sides of the bottom of the moving template to keep the push plate moving in a straight line.

[0013] The advantages of this utility model compared to the prior art are: This application achieves integrated molding of the holes on the upper and lower surfaces of the motor volute housing by setting an upper core body and a lower core body. The specific technical solution is as follows: In the fixed mold assembly, an upper core plate is fixedly installed at the bottom of the fixed mold plate, and an upper core body is integrated on the lower surface of the upper core plate; correspondingly, in the moving mold assembly, a lower core plate is assembled inside the cavity of the moving mold plate, and a lower core body is fixedly installed on the upper surface of the lower core plate. The lower end face of the upper core body has several forming pillars that match the holes on the upper surface of the motor volute housing, and the upper end face of the lower core body has several forming pillars that match the holes on the lower surface of the motor volute housing. The size and arrangement of each forming pillar correspond one-to-one with the diameter and position distribution of the target holes. After the fixed mold assembly and the moving mold assembly complete the mold closing action, the forming pillars of the upper and lower core bodies extend into the preset positions of the cavity, forming a complete molding space for the motor volute housing together with the inner wall of the cavity. At this point, molten metal is injected into the mold cavity, filling the entire molding space under pressure. After the molten metal cools and solidifies within the cavity, the forming pillars of the upper core body form a pre-set hole structure on the upper surface of the motor volute body, while the forming pillars of the lower core body form a pre-set hole structure on its lower surface. Through this structural design, the holes on the upper and lower surfaces of the motor volute body can be die-cast simultaneously with the body, eliminating the need for a secondary drilling process after die-casting and reducing subsequent processing steps. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural schematic diagram of a die-casting mold for a new energy vehicle motor vortex housing according to this utility model.

[0015] Figure 2 This is a schematic diagram of the first exploded structure of a die-casting mold for a new energy vehicle motor vortex housing according to this utility model.

[0016] Figure 3 This is a schematic diagram of the second exploded structure of a die-casting mold for a new energy vehicle motor vortex housing according to this utility model.

[0017] Figure 4 This is a three-dimensional structural diagram of the fixed mold component of a die-casting mold for a new energy vehicle motor vortex housing according to this utility model.

[0018] Figure 5 This is a three-dimensional structural diagram of the side forming component of a die-casting mold for a new energy vehicle motor vortex housing according to this utility model.

[0019] Figure 6 This is a three-dimensional structural diagram of the moving mold assembly of a die-casting mold for a new energy vehicle motor vortex housing according to this utility model.

[0020] The diagram is labeled as follows: 1. Fixed mold assembly; 11. Fixed mold plate; 111. Gate; 112. Upper core plate; 113. Upper core body; 114. Guide hole; 2. Side forming assembly; 21. Side forming block; 211. Guide component; 22. Bracket; 23. Telescopic drive component; 3. Moving mold assembly; 31. Moving mold plate; 311. Mounting part; 312. Guide rod; 32. Fixed seat; 33. Lower core plate; 331. Lower core body; 34. Ejector plate; 341. Ejector rod; 35. Guide component; 4. Motor volute body. Detailed Implementation

[0021] To further understand the features, technical means, and specific objectives and functions achieved by this utility model, the following detailed description of this utility model is provided in conjunction with the accompanying drawings and specific embodiments.

[0022] Reference Figures 1-6As shown, this utility model provides a die-casting mold for a new energy vehicle motor volute, used to make molten metal into a motor volute body 4. It includes a fixed mold assembly 1 installed at the injection end of the die-casting machine, a moving mold assembly 3 installed at the movable end of the die-casting machine, and a side forming assembly 2 installed between the fixed mold assembly 1 and the moving mold assembly 3. The fixed mold assembly 1 includes a fixed template 11 installed at the injection end of the die-casting machine. An upper core plate 112 is fixed to the bottom of the fixed template 11, and an upper core body 113 is provided at the bottom of the upper core plate 112. The upper core body 113 is provided with a plurality of forming columns. The moving mold assembly 3 includes two fixed seats 32 installed at the movable end of the die-casting machine. A moving template 31 is fixed to the fixed seats 32. A lower core plate 33 is fixed to the moving template 31, and a lower core body 331 for forming is provided on the lower core plate 33. The lower core body 331 has a plurality of forming columns.

[0023] The moving end of the die-casting machine drives the moving mold assembly 3 to move towards the fixed mold assembly 1, closing the fixed mold assembly 1 and the moving mold assembly 3. Simultaneously, the side forming assembly 2 extends into a preset position under the action of the side forming assembly 2, together with the upper core body 113 and the lower core body 331, to form a closed cavity that perfectly matches the shape and internal structure of the motor volute body 4. The forming pillars of the upper core body 113 and the lower core body 331 are located at the upper and lower preset holes of the cavity, respectively. The injection end of the die-casting machine injects high-temperature molten metal (such as aluminum alloy molten metal) into the closed cavity under high pressure through the fixed mold plate 11. Under pressure, the molten metal fills every corner of the cavity, wrapping the forming pillars of the upper core body 113 and the lower core body 331 and the side cores. Subsequently, the molten metal rapidly cools and solidifies in the cavity, forming a blank of the motor volute body 4 with upper surface holes, lower surface holes and a complete side structure. The moving end of the die-casting machine drives the moving mold assembly 3 to move in the opposite direction, realizing the separation of the fixed mold and the moving mold.

[0024] The moving mold assembly 3 includes mounting portions 311 disposed on four sides of the moving mold plate 31. The side forming assembly 2 includes four side forming blocks 21 slidably disposed in the mounting portions 311, and the side forming blocks 21 can move synchronously with the upper core body 113 and the lower core body 331 to form a cavity for forming the motor volute body 4. The side forming assembly 2 also includes a bracket 22 fixed to the side of the moving mold plate 31, and a telescopic drive member 23 is mounted on the bracket 22. The output end of the telescopic drive member 23 is connected to the side of the side forming block 21. The mounting portion 311 has a sliding groove, and the bottom of the side forming block 21 is fixed with a slide rail that cooperates with the sliding groove.

[0025] During the mold closing process, the telescopic drive component 23 is activated and extends synchronously, pushing the side forming blocks 21 along the slide groove of the mounting part 311 towards the center of the cavity through the output end. Since the four side forming blocks 21 are driven by the corresponding telescopic drive component 23 respectively, and the guiding effect of the slide groove and the slide rail ensures that the movement trajectory of each forming block is consistent, the four side forming blocks 21 can eventually reach the preset position synchronously. Their inner contours are closely fitted with the lower surface of the upper core body 113 and the upper surface of the lower core body 331, together forming a closed cavity that is completely matched with the overall structure of the motor volute body 4.

[0026] The side forming assembly 2 includes a guide 211 mounted on one of the side forming blocks 21, and the guide 211 has a guide hole for guiding molten metal into the cavity. The fixed mold plate 11 is provided with a gate 111 for molten metal to pass through. When the fixed mold assembly 1 and the moving mold assembly 3 are closed, the guide 211 can be inserted into the gate 111.

[0027] During the mold closing stage, as the moving mold assembly 3 approaches the fixed mold assembly 1, the insertion end of the guide 211 is precisely embedded in the gate 111 of the fixed mold plate 11. When the injection molding stage begins, the die casting machine presses the high-temperature molten metal into the gate 111 of the fixed mold plate 11 through the nozzle. Under pressure, the molten metal enters the guide hole of the guide 211 through the gate 111, flows directionally along the channel to the cavity, and cools to form the motor volute body 4.

[0028] Guide holes 114 are provided around the bottom of the fixed template 11, and a guide rod 312 that can cooperate with the guide holes 114 is provided on the top of the movable template 31. The coordinated action of the guide holes 114 and the guide rod 312 can simultaneously ensure that the center lines of the upper core body 113 and the lower core body 331 are aligned, and that the mating surfaces of the side molding block 21 and the upper core body 113 and the lower core body 331 are precisely fitted, so that the cavity size formed by the molding components meets the design requirements.

[0029] A push plate 34 is fixed between the two fixed seats 32, and the push plate 34 also has a push rod 341 that can push out the motor volute body 4. Guide members 35 are fixed on both sides of the bottom of the moving template 31 to keep the push plate 34 moving in a straight line.

[0030] During the mold demolding stage, after the fixed mold assembly 1 separates from the moving mold assembly 3 and the side forming block 21 of the side forming assembly 2 is removed, the ejection system of the die casting machine begins to work: external driving force (such as hydraulic cylinder thrust) acts on the ejector plate 34, pushing the ejector plate 34 upward along the guide member 35. Because the guide member 35 cooperates with the ejector plate 34, the ejector plate 34 remains horizontal and without deviation during the movement, ensuring that all ejector rods 341 installed on it move upward synchronously. The top of the ejector rod 341 passes through the preset through holes of the moving template 31 and the lower core plate 33, and overcomes the adsorption force and friction between the volute body and the lower core body 331 through uniform thrust, smoothly ejecting the formed motor volute body 4 from the lower core body 331. After the volute body is completely separated from the lower core body 331, the push plate 34 is reset along the guide 35 under the action of the reset spring (which is present in general molds), driving the push rod 341 back into the moving template 31, preparing for the next die casting cycle.

[0031] The above embodiments only illustrate one or more implementations of this utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of this utility model. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the appended claims.

Claims

1. A die-casting mold for a new energy vehicle motor volute housing, used to produce a motor volute housing body (4) from molten metal, characterized in that: The assembly includes a fixed mold assembly (1) installed at the injection end of the die casting machine, a moving mold assembly (3) installed at the moving end of the die casting machine, and a side forming assembly (2) installed between the fixed mold assembly (1) and the moving mold assembly (3). The fixed mold assembly (1) includes a fixed template (11) installed at the injection end of the die casting machine. An upper core plate (112) is fixed at the bottom of the fixed template (112), and an upper core body (113) is provided at the bottom of the upper core plate (112). Several forming columns are provided on the upper core body (113). The moving mold assembly (3) includes two fixed seats (32) installed at the moving end of the die casting machine. A moving template (31) is fixed on the fixed seats (32). A lower core plate (33) is fixed on the moving template (31), and a lower core body (331) for forming is provided on the lower core plate (33). Several forming columns are provided on the lower core body (331).

2. The die-casting mold for a new energy vehicle motor volute according to claim 1, characterized in that: The moving mold assembly (3) includes mounting parts (311) on four sides of the moving mold plate (31), and the side forming assembly (2) includes four side forming blocks (21) that are slidably disposed in the mounting parts (311). The side forming blocks (21) can move synchronously with the upper core body (113) and the lower core body (331) to form a cavity for forming the motor volute body (4).

3. The die-casting mold for a new energy vehicle motor volute according to claim 2, characterized in that: The side forming component (2) also includes a bracket (22) fixed to the side of the moving template (31), and a telescopic drive (23) is installed on the bracket (22), the output end of the telescopic drive (23) being connected to the side of the side forming block (21).

4. The die-casting mold for a new energy vehicle motor volute according to claim 2, characterized in that: The side forming assembly (2) includes a guide (211) mounted on one of the side forming blocks (21), and the guide (211) has a guide hole for guiding the molten metal into the cavity. The fixed mold plate (11) is provided with a gate (111) for the molten metal to pass through. When the fixed mold assembly (1) and the moving mold assembly (3) are closed, the guide (211) can be inserted into the gate (111).

5. The die-casting mold for a new energy vehicle motor volute according to claim 2, characterized in that: The mounting part (311) has a groove, and the bottom of the side molding block (21) is fixed with a slide rail that matches the groove.

6. The die-casting mold for a new energy vehicle motor volute according to claim 1, characterized in that: The fixed template (11) has guide holes (114) around its bottom, and the moving template (31) has a guide rod (312) at its top that can cooperate with the guide holes (114).

7. The die-casting mold for a new energy vehicle motor volute according to claim 1, characterized in that: A push plate (34) is fixed between the two fixed seats (32), and the push plate (34) also has a push rod (341) that can push out the motor volute body (4).

8. The die-casting mold for a new energy vehicle motor volute according to claim 7, characterized in that: The bottom sides of the moving template (31) are fixed with guides (35) for keeping the push plate (34) moving in a straight line.

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