An electric machine gear case shell die-casting mold

Abstract

The utility model discloses a motor gear box casing die -casting mould, include: support seat, the top fixedly connected with lower mould carrier of support seat, the middle part of lower mould carrier is embedded with lower mould body, and the four ends of lower mould body all are provided with the accommodation groove that sets up, four forming assemblies, four forming assemblies are fixedly connected respectively in the four ends of lower mould carrier, are used for cooperating lower mould body and form complete lower model cavity, upper mould carrier, the top of upper mould carrier is provided with the gate, and the middle part of upper mould carrier bottom is fixedly connected with upper mould body, the utility model relates to motor gear box casing production technical field, the utility model discloses through the structure cooperation of forming assembly and stripping assembly, can be in the motor gear box casing after, with the controllable displacement of forming plate and the extension of stripping oil cylinder output end, realize the effective stripping of motor gear box casing, greatly improved the stripping efficiency of whole, make whole more convenient.

Description

Technical Field

[0001] This utility model relates to the field of motor gearbox housing production technology, specifically a die-casting mold for motor gearbox housing. Background Technology

[0002] A motor gearbox housing is a metal structure used to enclose and protect the internal components of a motor gearbox. It typically consists of two or more parts connected together by bolts or other fasteners to form a complete housing that protects the internal gears and motor components while also providing support and stability.

[0003] Because the shape of the motor gearbox housing is relatively complex and requires high dimensional accuracy, the production of the motor gearbox housing is mainly achieved through die casting molds.

[0004] However, in traditional die-casting technology, the mold cavity structure of the motor gearbox housing makes it difficult to easily remove the molded motor gearbox housing after it has cooled, which greatly affects the production efficiency of the motor gearbox housing.

[0005] To address these issues, this invention provides a die-casting mold for an electric motor gearbox housing. Utility Model Content

[0006] To address the shortcomings of existing technologies, this utility model provides a die-casting mold for motor gearbox housings, which solves the aforementioned problems.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a die-casting mold for an electric motor gearbox housing, comprising:

[0008] A support base, the top of which is fixedly connected to a lower mold support base, the middle of which is embedded with a lower mold body, and the four ends of the lower mold body are provided with receiving grooves;

[0009] Four molding components are fixedly connected to the four ends of the lower mold support base to cooperate with the lower mold body to form a complete lower mold cavity;

[0010] The upper mold support is provided with a gate at its top and the upper mold body is fixedly connected to the middle of the bottom end of the upper mold support.

[0011] A demolding assembly, which is assembled inside the support base, is used to separate the motor gearbox housing from the lower mold body.

[0012] Preferably, each of the four molding components includes:

[0013] The displacement seat has guide grooves at all four ends of the top of the lower mold support seat. The displacement seat is slidably connected inside the corresponding guide grooves. A forming plate is provided at the end of the displacement seat near the lower mold body, and the contour of the end of the forming plate away from the displacement seat is adapted to the contour of the motor gearbox housing.

[0014] A positioning frame is fixedly connected to the outside of the lower mold support seat. A cylinder is fixedly connected to the side of the positioning frame away from the lower mold support seat. A quick-release rod is fixedly connected to the output end of the cylinder. A quick-release groove is opened at the end of the displacement seat away from the forming plate, and the end of the quick-release rod away from the cylinder is also assembled inside the quick-release groove.

[0015] Preferably, the demolding assembly includes:

[0016] A demolding cylinder is fixedly and inclined inside the support base. The bottom end of the lower mold support base is provided with an oil passage hole, and the output end of the demolding cylinder is located inside the oil passage hole. Both sides of the lower mold support base are provided with clearance grooves, and the oil passage of the demolding cylinder extends through the clearance grooves to the outside of the support base.

[0017] Preferably, the four corners of the top of the lower mold support are fixedly connected with limit rods, and the four corners of the bottom of the upper mold support are provided with limit holes, and the limit rods and limit holes are clearance fit.

[0018] Preferably, mounting slots are provided on both sides of the top of the lower mold support and on both sides of the bottom of the upper mold support, and a vacuum interface is provided inside the mounting slot.

[0019] Preferably, a linear guide rail is fixedly connected inside the guide groove, a linear slide groove is provided at the bottom end of the displacement seat, and the displacement seat is also connected to the outside of the linear guide rail through the linear slide groove.

[0020] Preferably, a reinforcing plate is fixedly connected to the top of the displacement seat, and the molding plate is connected to the reinforcing plate by screws.

[0021] Preferably, the positioning frame is U-shaped.

[0022] Beneficial effects

[0023] This utility model provides a die-casting mold for an electric motor gearbox housing. Compared with the prior art, it has the following advantages:

[0024] This die-casting mold for motor gearbox housing, through the structural cooperation of the molding component and the demolding component, enables effective demolding of the motor gearbox housing by means of the controllable displacement of the molding plate and the extension of the output end of the demolding cylinder. This greatly improves the overall demolding efficiency and makes the whole process more convenient. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0026] Figure 2 This is a schematic diagram of the separation structure of the lower mold support and the upper mold support of this utility model;

[0027] Figure 3 This is a schematic diagram of the separation structure of the support base and the lower mold bearing base of this utility model;

[0028] Figure 4 This is a schematic diagram of the assembly structure of the gate of this utility model;

[0029] Figure 5 This is a schematic diagram of the assembly structure of the molding plate of this utility model;

[0030] Figure 6 This is a schematic diagram of the assembly structure of the displacement seat and the forming plate of this utility model;

[0031] Figure 7 This is a schematic diagram of the demolding component of this utility model.

[0032] In the diagram: 1. Support base; 2. Lower mold support base; 3. Lower mold body; 4. Receiving groove; 5. Molding component; 6. Upper mold support base; 7. Gate; 8. Upper mold body; 9. Demolding component; 10. Guide groove; 11. Linear guide rail; 12. Displacement seat; 13. Molding plate; 14. Reinforcing plate; 15. Quick-release groove; 16. Positioning frame; 17. Cylinder; 18. Quick-release rod; 19. Demolding cylinder; 20. Clearance groove; 21. Oil passage; 22. Limiting rod; 23. Limiting hole; 24. Vacuum interface. Detailed Implementation

[0033] 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.

[0034] Example 1:

[0035] Please see Figure 1-5 A die-casting mold for an electric motor gearbox housing, comprising:

[0036] Support base 1, the top of support base 1 is fixedly connected to lower mold bearing base 2, the middle of lower mold bearing base 2 is embedded with lower mold body 3, and the four ends of lower mold body 3 are provided with receiving grooves 4.

[0037] Four molding components 5 are fixedly connected to the four ends of the lower mold support 2, and are used to cooperate with the lower mold body 3 to form a complete lower mold cavity;

[0038] The upper mold support 6 has a gate 7 at its top and an upper mold body 8 fixedly connected to the middle of its bottom.

[0039] Demolding assembly 9, which is assembled inside the support base 1, is used to separate the motor gearbox housing from the lower mold body 3;

[0040] Please refer to Figure 2 and Figure 4 In this embodiment, the four corners of the top of the lower mold support 2 are fixedly connected with limit rods 22, and the four corners of the bottom of the upper mold support 6 are provided with limit holes 23, and the limit rods 22 and the limit holes 23 are in clearance fit.

[0041] More specifically, through the structural cooperation of the limiting rod 22 and the limiting hole 23, when the upper mold support seat 6 moves to the lower mold support seat 2, the limiting rod 22 will be inserted into the limiting hole 23, thereby restricting the displacement path of the upper mold support seat 6, so that the upper mold support seat 6 can be better assembled with the lower mold support seat 2.

[0042] Please refer to Figure 3 and Figure 4 In this embodiment, mounting slots are provided on both sides of the top of the lower mold support 2 and both sides of the bottom of the upper mold support 6, and a vacuum interface 24 is provided inside the mounting slots.

[0043] More specifically, when the upper mold support seat 6 covers the lower mold support seat 2, the gas inside the lower mold support seat 2 is extracted through the vacuum port 24 by a vacuum pump to reduce the pressure inside the cavity, which helps the molten metal to better fill all parts of the mold, thereby improving the dimensional accuracy and surface quality of the casting and preventing the formation of air bubbles.

[0044] Please refer to Figure 7 In this embodiment, the demolding component 9 includes:

[0045] The demolding cylinder 19 is fixedly connected to the inside of the support base 1 at an incline. The bottom end of the lower mold support base 2 is provided with an oil passage hole at an incline, and the output end of the demolding cylinder 19 is located inside the oil passage hole. Both sides of the lower mold support base 2 are provided with relief grooves 20, and the oil passage 21 of the demolding cylinder 19 extends through the relief grooves 20 to the outside of the support base 1.

[0046] Example 2:

[0047] Please see Figure 5-6 This embodiment provides a technical solution based on Embodiment 1: each of the four molding components 5 includes:

[0048] The displacement seat 12 and the lower mold support seat 2 are provided with guide grooves 10 at all four ends of the top. The displacement seat 12 is slidably connected inside the corresponding guide grooves 10. A forming plate 13 is provided at one end of the displacement seat 12 near the lower mold body 3, and the contour of the end of the forming plate 13 away from the displacement seat 12 is adapted to the contour of the motor gearbox housing.

[0049] Positioning frame 16 is fixedly connected to the outside of the lower mold support 2. A cylinder 17 is fixedly connected to the side of the positioning frame 16 away from the lower mold support 2. A quick-release rod 18 is fixedly connected to the output end of the cylinder 17. A quick-release groove 15 is opened at the end of the displacement seat 12 away from the forming plate 13, and the end of the quick-release rod 18 away from the cylinder 17 is also assembled inside the quick-release groove 15.

[0050] Please refer to Figure 6 In this embodiment, a linear guide rail 11 is fixedly connected inside the guide groove 10, and a linear slide groove is opened at the bottom end of the displacement seat 12. The displacement seat 12 is also connected to the outside of the linear guide rail 11 through the linear slide groove.

[0051] More specifically, through the structural cooperation of the linear groove and the linear guide rail 11, the displacement path of the displacement seat 12 can be guided, avoiding uncontrollable displacement of the displacement seat 12 and greatly ensuring the stability of the displacement seat 12 in application.

[0052] Please refer to Figure 6 In this embodiment, a reinforcing plate 14 is fixedly connected to the top of the displacement seat 12, and the forming plate 13 is connected to the reinforcing plate 14 by screws.

[0053] More specifically, by setting the reinforcing plate 14, a stable assembly of the molded plate 13 can be formed with the help of screws;

[0054] Furthermore, in order to ensure that the screw can pass smoothly through the displacement seat 12 to reach the position for assembly with the molding plate 13, a through hole is provided at the top of the displacement seat 12.

[0055] Please refer to Figure 6 In this embodiment, the positioning frame 16 is U-shaped;

[0056] More specifically, the shape characteristics of the positioning frame 16 allow for the installation of the cylinder 17 while avoiding interference with the adjustment of the displacement seat 12. Furthermore, the characteristics of the positioning frame 16 also enable it to connect to the lower mold support seat 2 from multiple points, thereby ensuring the stability of the cylinder 17 application.

[0057] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

[0058] Working principle: Before die casting the motor gearbox housing, cylinder 17 is first activated to push displacement seat 12 with the help of quick-release rod 18, causing forming plate 13 to move closer to lower mold body 3 until forming plate 13 reaches receiving groove 4. Then, upper mold support seat 6 and lower mold support seat 2 are assembled, and the gas in the cavity between upper mold support seat 6 and lower mold support seat 2 is extracted with the help of vacuum pump. Then, molten metal is injected into the cavity through gate 7, so that motor gearbox housing is formed in the cavity. After the motor gearbox housing cools down, cylinder 17 is activated to pull forming plate 13 away from lower mold body 3. After upper mold support seat 6 moves away from lower mold support seat 2, demolding cylinder 19 is activated to extend the output end, so that it passes through the oil passage hole to push motor gearbox housing out of lower mold body 3 for personnel to handle.

[0059] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0060] 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 die-casting mold for an electric motor gearbox housing, characterized in that: include: Support base (1), the top of the support base (1) is fixedly connected to the lower mold support base (2), the lower mold body (3) is embedded in the middle of the lower mold support base (2), and the four ends of the lower mold body (3) are provided with receiving grooves (4); Four molding components (5) are fixedly connected to the four ends of the lower mold support (2) to cooperate with the lower mold body (3) to form a complete lower mold cavity; Upper mold support (6), with a gate (7) at the top and an upper mold body (8) fixedly connected to the middle of the bottom end of the upper mold support (6); Demolding assembly (9), which is assembled inside the support base (1), is used to separate the motor gearbox housing from the lower mold body (3).

2. The die-casting mold for a motor gearbox housing according to claim 1, characterized in that: Each of the four molding components (5) includes: The displacement seat (12) has guide grooves (10) at all four ends of the top of the lower mold support seat (2). The displacement seat (12) is slidably connected inside the corresponding guide grooves (10). A forming plate (13) is provided at one end of the displacement seat (12) near the lower mold body (3), and the contour of the end of the forming plate (13) away from the displacement seat (12) is adapted to the contour of the motor gearbox housing. A positioning frame (16) is fixedly connected to the outside of the lower mold support seat (2). A cylinder (17) is fixedly connected to the side of the positioning frame (16) away from the lower mold support seat (2). A quick-release rod (18) is fixedly connected to the output end of the cylinder (17). A quick-release groove (15) is opened at the end of the displacement seat (12) away from the forming plate (13), and the end of the quick-release rod (18) away from the cylinder (17) is also assembled inside the quick-release groove (15).

3. The die-casting mold for a motor gearbox housing according to claim 1, characterized in that: The demolding component (9) includes: The demolding cylinder (19) is inclined and fixedly connected inside the support base (1). The bottom end of the lower mold support base (2) is inclined and has an oil passage hole. The output end of the demolding cylinder (19) is located inside the oil passage hole. Both sides of the lower mold support base (2) are provided with relief grooves (20). The oil passage (21) of the demolding cylinder (19) extends through the relief groove (20) to the outside of the support base (1).

4. The die-casting mold for a motor gearbox housing according to claim 1, characterized in that: Limiting rods (22) are fixedly connected to the four corners of the top of the lower mold support (2), and limiting holes (23) are opened at the four corners of the bottom of the upper mold support (6), and the limiting rods (22) and the limiting holes (23) are in clearance fit.

5. The die-casting mold for a motor gearbox housing according to claim 1, characterized in that: The lower mold support (2) has mounting slots on both sides of its top and the upper mold support (6) on both sides of its bottom, and the mounting slots are equipped with vacuum interfaces (24).

6. The die-casting mold for a motor gearbox housing according to claim 2, characterized in that: The guide groove (10) is fixedly connected to a linear guide rail (11), and the bottom end of the displacement seat (12) is provided with a linear sliding groove. The displacement seat (12) is also connected to the outside of the linear guide rail (11) through the linear sliding groove.

7. The die-casting mold for a motor gearbox housing according to claim 2, characterized in that: The top of the displacement seat (12) is fixedly connected to a reinforcing plate (14), and the forming plate (13) is connected to the reinforcing plate (14) by screws.

8. The die-casting mold for a motor gearbox housing according to claim 2, characterized in that: The positioning frame (16) is U-shaped.

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