Motor casing die-casting die
Through the coordinated design of the moving mold, fixed mold, slider, central ejector pin, and pushing components, automated demolding of the motor housing is achieved, solving the problems of complex operation and low efficiency of existing molds, and improving production efficiency and consistency of finished product quality.
Patent Information
- Application Number
- CN202423047303.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-11
- Publication Date
- 2025-12-12
- Estimated Expiration
- 2034-12-11
AI Technical Summary
Existing motor housing die-casting molds are complex to operate during disassembly, have low automation, low production efficiency, and make it difficult to guarantee the precision of finished products.
The design employs a coordinated approach involving a moving mold, a fixed mold, a slider, a central ejector pin, a spring, a linkage assembly, and a pushing assembly. The automatic demolding of the motor housing is achieved through a die-casting machine drive. The slider and the inclined guide pin work together to move the slider radially, and the pusher plate and the ejector block push together to achieve rapid ejection of the part.
While ensuring the precision of the motor housing, the operation steps are simplified, the degree of automation and production efficiency are improved, the risk of deformation is reduced, and the consistency of finished product quality and the applicability of the mold are enhanced.
Smart Images
Figure CN223655996U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The application relates to the technical field of die casting molds, in particular to a motor shell die casting mold. BACKGROUND
[0002] The die casting mold is a tool for casting metal parts, which is generally installed on a special die casting machine. The basic process of die casting is that the metal liquid is cast into the cavity of the mold at low or high speed, and after the metal liquid fills the cavity, the die casting mold is opened to complete the casting.
[0003] In the related art, the motor shell is column-shaped, and a complex structure is formed on the circumferential side in the radial direction of the motor shell. After die casting, the movable mold and the fixed mold of the die casting mold are separated, and then the motor shell is manually or mechanically cut off from the fixed mold or the movable mold.
[0004] According to the related art, manual disassembly can ensure the precision of the outer side of the motor shell, but the operation is complex, the degree of automation is low, and the production efficiency is low. Practical new type content
[0005] In order to ensure the precision of the motor shell while reducing the operation difficulty, improve the degree of automation and production efficiency, the application provides a motor shell die casting mold.
[0006] The motor shell die casting mold provided by the application adopts the following technical scheme:
[0007] A motor shell die casting mold comprises a movable mold and a fixed mold, a cavity is formed between the movable mold and the fixed mold, the cavity is arranged corresponding to the motor shell, a core is fixed on the movable mold, the axis direction of the core is coaxially arranged with the axis direction of the motor shell, the movable mold is driven by a die casting machine to move along the axis direction of the core, a sliding block is arranged on one side of the core in the radial direction, the sliding block slides in the radial direction of the core, a linkage assembly is arranged on the movable mold, the linkage assembly drives the sliding block to slide when the movable mold slides, a plurality of sliding blocks are arranged in the circumferential array around the axis of the core, and a plurality of linkage assemblies are arranged corresponding to the plurality of sliding blocks, the movable mold, the fixed mold, the core and the plurality of sliding blocks form a cavity, a pushing assembly for pushing the motor shell out of the cavity is further arranged on the movable mold, the pushing assembly is driven by the die casting machine, a flow divider for injecting molten metal is fixed on the fixed mold, and the side of the flow divider away from the fixed mold is communicated with the cavity.
[0008] By adopting the technical scheme, the worker fixes the die casting die in the die casting machine, the die casting machine drives the movable die and the fixed die to close to form a cavity, the worker injects molten metal into the cavity through the die casting machine through the flow divider until the molten metal fills the cavity, and then the worker controls the die casting machine to control the movable die to move away from the fixed die along the core axis direction, the plurality of linkage assemblies simultaneously drive the plurality of sliders to move away from each other, and the pushing assembly pushes the formed motor shell away from the die casting die. In this way, the precision of the motor shell can be ensured, and the cooled part can be quickly pushed out of the die, which helps to improve the automation degree of the die in use and improve the production efficiency of the part.
[0009] Preferably, the side, away from the fixed die, of the core is provided with a positioning block, the side surface of the positioning block, close to the fixed die, abuts against the side surface of the motor shell, away from the fixed die, the pushing assembly comprises a push plate, the push plate is located on the side, away from the fixed die, of the movable die, the push plate is driven by the die casting machine to move along the core axis direction, the push plate is fixed with a top block, and the top block penetrates the movable die and the positioning block in sequence along the core axis direction.
[0010] By adopting the technical scheme, when the part in the die cools down, the die casting machine drives the push plate to move towards the fixed die, so that the top block on the push plate moves towards the fixed die, the top block penetrates out of the positioning block, and the cooled part is pushed out of the die.
[0011] Preferably, the side, close to the movable die, of the push plate is further provided with a fixed plate and a center ejection column, the fixed plate is fixedly connected with the push plate, the center ejection column is correspondingly arranged with the flow divider, the center ejection column comprises a limiting section and an ejection section, the limiting section is embedded on the side, close to the push plate, of the fixed plate and is in sliding fit with the fixed plate, the ejection section penetrates the fixed plate, the movable die and the core in sequence along the axis direction of the ejection section, the center ejection column is coaxially arranged with the core, a spring is further embedded between the limiting section and the push plate, and the axis direction of the spring is parallel to the axis direction of the center ejection column.
[0012] By adopting the technical scheme, the worker injects molten metal into the cavity through the die casting machine through the flow divider, the molten metal drives the center ejection column to move towards the push plate, the center ejection column compresses the spring, when the molten metal cools down, the die casting machine drives the movable die and the fixed die to separate, the compressed spring resets to drive the center ejection column to eject from the side, away from the push plate, of the core, the pouring opening is broken, the die casting machine drives the push plate to move towards the movable die, so as to drive the motor shell to separate from the core, and then the motor shell is pushed out of the die. The limiting section is embedded in the fixed plate, so as to limit the stroke of the center ejection column and ensure the demolding effect.
[0013] Preferably, the top block is in the shape of a tile, and the top block has a plurality of tile-shaped parts arranged around the core axis.
[0014] By adopting the above technical scheme, since the motor casing is in the shape of a cylinder, the tile-shaped top block helps to increase the contact area between the top block and the axial direction of the motor casing, and the plurality of tile-shaped parts help to further ensure that each part is simultaneously removed from the mold, thereby reducing the possibility of deformation of the part when it is removed.
[0015] Preferably, a limiting seat is arranged on the side of the movable mold away from the fixed mold, the push plate slides in the limiting seat along the core axis, and a baffle is further fixed on the limiting seat, the baffle is located on the side of the positioning plate away from the movable mold, and the baffle is fixed opposite to the limiting seat.
[0016] By adopting the above technical scheme, the baffle helps to limit the push plate and reduces the stroke of the push plate, thereby improving work efficiency.
[0017] Preferably, the linkage assembly comprises an inclined guide column, one end of the inclined guide column is fixed on the fixed mold, the axis of the inclined guide column is inclined from the side close to the fixed mold to the side close to the movable mold, the inclined guide column penetrates a sliding block along its own axis direction, the sliding block slides along the axis direction of the inclined guide column, and the inclined guide column is provided with a plurality of sliding blocks corresponding to the plurality of sliding blocks.
[0018] By adopting the above technical scheme, the inclined guide column is fixed on the fixed mold, when the movable mold moves relative to the fixed mold along the core axis direction, the inclined guide column slides relative to the sliding block, thereby decomposing the movement into the movement of the sliding block and the fixed mold along the core axis direction, and the movement between the sliding block and the movable mold can only be along the radial direction of the core, and the inclined guide column drives the corresponding sliding block to move away from the core. In this way, when the movable mold and the fixed mold move relative to each other, the plurality of linkage assemblies drive the corresponding plurality of sliding blocks to move away from each other, so that the sliding blocks and the molded parts move away from each other along the radial direction of the core.
[0019] Preferably, a limiting block is further fixed on the movable mold, and one limiting block is arranged on each of the two sides of the sliding block in the width direction of the sliding block, thereby forming a group; the two sides of the sliding block in the width direction are respectively embedded in the two limiting blocks, the sliding block and the group of limiting blocks slide along the radial direction of the core, and a plurality of groups of limiting blocks are arranged on the movable mold corresponding to the plurality of sliding blocks, and the plurality of sliding blocks move away from or close to each other.
[0020] By adopting the above technical scheme, the two sides of the sliding block in the width direction are embedded in the two corresponding limiting blocks, and the limiting blocks are fixed on the movable mold, so that the sliding block can only move along the radial direction of the core, and the plurality of sliding blocks move away from or close to each other.
[0021] Preferably, any of the sliding blocks is fixed with a forming block near one side of the core, and a forming surface corresponding to one side of the radial direction of the motor shell is formed on the side of the forming block.
[0022] By adopting the technical scheme, the staff can improve the application range and adaptability of the mold by replacing different forming blocks.
[0023] In summary, the present application has at least one of the following beneficial technical effects:
[0024] 1. Through the synergistic effect of the movable mold, the fixed mold, the sliding blocks, the center ejection column and the spring, the linkage assembly and the pushing assembly, the motor shell after casting and cooling can realize automatic demolding, which reduces the complexity of manual operation, improves the production efficiency and the automation degree of mold operation while ensuring the precision of the finished product;
[0025] 2. The plurality of inclined guide columns drive the corresponding sliding blocks to move away from each other, so that each part of the motor shell in the radial direction is uniformly demolded, avoiding the problem of deformation caused by uneven demolding, and helping to improve the consistency of the finished product quality;
[0026] 3. The staff can replace the forming blocks to make the mold suitable for different specifications and models of motor shells, which helps to improve the versatility and applicability of the mold. BRIEF DESCRIPTION OF DRAWINGS
[0027] Fig. 1 is the axonometric view of the motor shell die-casting mold in the closed mold state, which mainly embodies the external structure of the motor shell die-casting mold in the closed mold state in the embodiment of the present application;
[0028] Fig. 2 is the axonometric view of the motor shell die-casting mold in the open mold state, which mainly embodies the structure of the motor shell die-casting mold in the open mold state in the embodiment of the present application;
[0029] Fig. 3 is the sectional view of the motor shell die-casting mold in the closed mold state, which mainly embodies the internal structure of the motor shell die-casting mold in the closed mold state in the embodiment of the present application.
[0030] Reference signs: 1, fixed mold; 11, forming groove; 12, first inclined surface; 2, movable mold; 21, avoiding groove; 22, exhaust passage; 23, guide column; 24, limiting block; 3, core; 31, positioning block; 4, shunt block; 5, linkage assembly; 51, inclined guide column; 52, sliding block; 521, inclined sliding groove; 522, second inclined surface; 53, forming block; 6, limiting seat; 61, baffle; 7, pushing assembly; 71, push plate; 72, fixed plate; 73, top block; 8, cavity; 9, center ejection column; 91, limiting section; 92, ejection section; 93, spring. DETAILED DESCRIPTION
[0031] The following will be described in detail in combination with the accompanying Figs. 1-3Further details of the application are described below.
[0032] The application discloses a motor shell die-casting die.
[0033] Referring to Figs. 1-3 The motor shell die-casting die comprises a fixed die 1 and a movable die 2, and a cavity 8 is formed between the fixed die 1 and the movable die 2. A core 3 is arranged in the cavity 8, the core 3 is fixed on the movable die 2, and the axial direction of the core 3 is parallel to the relative movement direction between the movable die 2 and the fixed die 1. A flow divider 4 is further arranged on the side of the core 3 close to the fixed die 1, the flow divider 4 is fixed on the fixed die 1, one end of the flow divider 4 is communicated with a liquid injection pipe of a die-casting machine, and the other end of the flow divider 4 is communicated with the cavity 8. A sliding block 52 is arranged on one side of the core 3 in the radial direction, the sliding block 52 slides on the movable die 2 in the radial direction of the core 3, and the sliding block 52 is circumferentially arranged in multiple numbers around the core 3, and four sliding blocks 52 are arranged in the embodiment. A molding block 53 is fixed on the side surface of the sliding block 52 close to each other, and a molding surface is formed on the side surface of the molding block 53 close to each other. A linkage assembly 5 is further arranged between the fixed die 1 and the movable die 2, and a pushing assembly 7 is further arranged on the movable die 2.
[0034] In actual work, workers replace the molding blocks 53 according to production requirements, and fix the die-casting die on a die-casting machine. The die-casting machine drives the fixed die 1 and the movable die 2 to close, and injects high-pressure or low-pressure molten metal into the cavity 8 through the flow divider 4 until the cavity 8 is filled with the metal. After the metal in the cavity 8 is cooled, the die-casting machine drives the movable die 2 to move away from the fixed die 1 along the axial direction of the core 3, the linkage assembly 5 drives the multiple sliding blocks 52 to move away from each other, and the pushing assembly 7 pushes the molded motor shell out of the core 3, so that automatic demolding is completed.
[0035] A molding groove 11 is formed on the side of the fixed die 1 close to the movable die 2, a liquid inlet is formed on the side of the fixed die 1 away from the movable die 2, the axial direction of the liquid inlet is parallel to the axial direction of the core 3, and the liquid inlet penetrates through the fixed die 1 along the axial direction thereof. The flow divider 4 is located between the fixed die 1 and the core 3, and the liquid inlet is communicated with the flow divider 4.
[0036] A limiting block 24 is arranged on one side of any sliding block 52 in the width direction, the side of the sliding block 52 in the width direction is embedded in the limiting block 24, the limiting block 24 is fixed on the movable die 2, one limiting block 24 is arranged on each side of the sliding block 52 in the width direction, and the two limiting blocks 24 form a group. The limiting block 24 enables the sliding block 52 to slide on the movable die 2 only in the radial direction of the core 3.
[0037] The linkage assembly 5 comprises an inclined guide pillar 51 fixed at one end of the fixed mold 1, and the axis of the inclined guide pillar 51 is inclined from the side close to the fixed mold 1 to the side close to the movable mold 2. An inclined sliding groove 521 is formed on the corresponding position of the sliding block 52, and the inclined sliding groove 521 is sleeved on the outside of the inclined guide pillar 51. A first inclined surface 12 is further formed in the forming groove 11, and a second inclined surface 522 is further formed on the side of the sliding block 52 away from the core 3. The first inclined surface 12 and the second inclined surface 522 are both parallel to the axis direction of the inclined guide pillar 51, and the second inclined surface 522 abuts on the first inclined surface 12. The fixed mold 1 limits and guides the sliding block 52 through the first inclined surface 12. The plurality of inclined guide pillars 51 are correspondingly provided for the plurality of sliding blocks 52, and the sides close to the fixed mold 1 of the plurality of inclined guide pillars 51 are close to each other.
[0038] The movable mold 2 is further formed with a avoiding groove 21, and during the clamping process, the side of the inclined guide pillar 51 away from the fixed mold 1 is located in the avoiding groove 21. An exhaust passage 22 is further formed between the movable mold 2 and the sliding block 52, and during the process that the molten metal fills the cavity 8, the air in the cavity 8 is discharged from the mold through the exhaust passage 22.
[0039] The core 3 is formed with a positioning block 31 on the side away from the flow divider 4, the diameter of the positioning block 31 is larger than the diameter of the core 3, and the core 3 is fixed on the movable mold 2 through the positioning block 31. The side of the sliding block 52 away from the fixed mold 1 abuts on the side of the positioning block 31 close to the flow divider 4 in the axis direction. The cavity 8 is formed by the combination of the forming surface, the outer side surface of the core 3, the side of the positioning block 31 away from the fixed mold 1, and the flow divider 4.
[0040] The movable mold 2 is provided with a limiting seat 6 on the side away from the fixed mold 1, and the limiting seat 6 is fixed on the movable mold 2. The pushing assembly 7 comprises a push plate 71 arranged on the limiting seat 6. The push plate 71 slides along the axis direction of the core 3 relative to the limiting seat 6, and the side of the push plate 71 close to the movable mold 2 is fixed with a fixed plate 72, and the fixed plate 72 is fixed with a top block 73. The top block 73 penetrates the movable mold 2 and the positioning block 31 in sequence along the axis direction of the core 3. When the compressor drives the push plate 71 to move towards the side close to the fixed mold 1, the top block 73 penetrates out of the positioning block 31, and pushes the motor shell cooled and solidified out of the mold. The top block 73 is arranged in a tile type, and the top block 73 is circumferentially arrayed with three around the axis of the core 3.
[0041] The push plate 71 is further provided with a center ejection column 9, the center ejection column 9 comprises a limiting section 91 and an ejection section 92 arranged coaxially, and the center ejection column 9 is arranged coaxially with the core 3. The limiting section 91 is embedded in the fixed plate 72 on the side of the fixed plate 72 close to the push plate 71 and away from the movable mold 2, and the limiting section 91 is slidably connected with the fixed plate 72 along the axis direction of the core 3. The ejection section 92 is located on the side of the limiting section 91 away from the push plate 71, and the ejection section 92 penetrates the fixed plate 72, the movable mold 2 and the core 3 along the axis direction of the ejection section 92 respectively, and the top end of the ejection section 92 is correspondingly arranged with the flow divider 4.
[0042] The spring 93 is embedded between the center ejection pin 9 and the push plate 71, and the axis direction of the spring 93 is parallel to the axis direction of the center ejection pin 9. The worker pours the molten metal into the cavity 8 through the distribution block 4, and the molten metal pushes the center ejection pin 9 to move to the side close to the push plate 71, and the center ejection pin 9 compresses the spring 93. When the molten metal cools down, the die casting machine drives the movable die 2 and the fixed die 1 to separate, and the compressed spring 93 resets, thereby pushing the center ejection pin 9 to move out from the side of the core 3 away from the push plate 71, and breaking the thin metal at the pouring opening.
[0043] The side, away from the movable die 2, of the limiting seat 6 is further provided with a baffle 61, the baffle 61 is located at the side, away from the movable die 2, of the push plate 71, and the baffle 61 is fixed on the limiting seat 6. The baffle 61 limits the push plate 71, reduces the reset stroke of the push plate 71, and improves the work efficiency.
[0044] The guiding column 23 is further arranged between the fixed die 1 and the movable die 2, the axis direction of the guiding column 23 is parallel to the axis direction of the core 3, one end of the guiding column 23 is embedded in the movable die 2, and the other end is embedded in the fixed die 1. The guiding column 23 is in sliding fit with the fixed die 1 along the axis direction of the core 3. The guiding column 23 is arranged at each corner of the movable die 2, which facilitates the positioning of the movable die 2 and the fixed die 1 when the mold is closed.
[0045] The implementation principle of the motor shell die casting die is as follows: the worker fixes the die casting die on the die casting machine, so that the liquid inlet is communicated with the liquid outlet of the die casting machine for flowing out of the molten metal. After the die casting machine drives the fixed die 1 and the movable die 2 to close, the die casting machine pours the molten metal into the cavity 8 through the distribution block 4, the molten metal pushes the center ejection pin 9 to move to the side close to the push plate 71, and the center ejection pin 9 compresses the spring 93. After the metal in the cavity 8 cools down, the worker controls the die casting machine to drive the movable die 2 to move to the side away from the fixed die 1, and the sliding block 52 slides relative to the inclined guide column 51, so that the plurality of sliding blocks 52 slide to the side away from each other along the radial direction of the core 3, and the molding surface is separated from the molded motor shell. At this time, the pressure on the compressed spring 93 is reduced, the spring 93 resets, the center ejection pin 9 moves to the side close to the fixed die 1, the ejection section 92 extends out of the core 3, thereby breaking the thin cooled metal at the pouring opening, the die casting machine pushes the push plate 71 to move to the side close to the fixed die 1, the push plate 71 drives the fixed plate 72, thereby driving the ejector block 73 to pass through the positioning block 31 away from the push plate 71, thereby pushing the motor shell sleeved on the core 3 to be ejected from the die. Through the above-mentioned mode, it is helpful to simplify the steps of disassembling the motor shell, improve the degree of automation and production efficiency.
[0046] The above are all preferred embodiments of the present application, and do not limit the protection scope of the present application, so that: all equivalent changes made according to the structure, shape, principle of the present application should be covered in the protection scope of the present application.
Claims
1. An electric machine housing die-casting mold characterized by: The device includes a moving mold (2) and a fixed mold (1). A cavity (8) is formed between the moving mold (2) and the fixed mold (1). The cavity (8) is correspondingly arranged with respect to the motor housing. A core (3) is fixed on the moving mold (2). The axis of the core (3) is coaxial with the axis of the motor housing. The moving mold (2) is driven by the die-casting machine to move along the axis of the core (3). A slider (52) is provided on one side of the core (3) in the radial direction. The slider (52) slides along the radial direction of the core (3). A linkage component (5) is provided on the moving mold (2). When the moving mold (2) slides, the linkage component (5) is activated. The linkage component (5) drives the slider (52) to slide. There are multiple sliders (52) arranged in a circumferential array around the axis of the core (3). There are multiple linkage components (5) respectively. A cavity (8) is formed between the moving mold (2), the fixed mold (1), the core (3) and the multiple sliders (52). The moving mold (2) is also provided with a pushing component (7) that pushes the motor housing out of the cavity (8). The pushing component (7) is driven by the die-casting machine. A diversion block (4) for injecting molten metal is fixed on the fixed mold (1). The side of the diversion block (4) away from the fixed mold (1) is connected to the cavity (8).
2. A die-cast mould for an electric machine housing according to claim 1, characterized in that: A positioning block (31) is provided on the side of the core (3) away from the fixed mold (1). The side of the positioning block (31) close to the fixed mold (1) abuts against the side of the motor housing away from the fixed mold (1). The pushing assembly (7) includes a push plate (71). The push plate (71) is located on the side of the moving mold (2) away from the fixed mold (1). The push plate (71) is driven by the die-casting machine to move along the axis of the core (3). A top block (73) is fixed on the push plate (71). The top block (73) passes through the moving mold (2) and the positioning block (31) in sequence along the axis of the core (3).
3. A die casting mould for an electrical machine housing according to claim 2, characterized in that: The push plate (71) is also provided with a fixed plate (72) and a central ejector column (9) on the side near the moving mold (2). The fixed plate (72) is fixedly connected to the push plate (71). The central ejector column (9) is correspondingly provided with the diverter block (4). The central ejector column (9) includes a limiting section (91) and an ejection section (92). The limiting section (91) is embedded in the side of the fixed plate (72) near the push plate (71) and slides with the fixed plate (72). The ejection section (92) passes through the fixed plate (72), the moving mold (2) and the core (3) in sequence along its own axis. The central ejector column (9) is coaxially provided with the core (3). A spring (93) is also embedded between the limiting section (91) and the push plate (71). The axis of the spring (93) is parallel to the axis of the central ejector column (9).
4. A die casting mold for an electric machine housing according to claim 2, characterized in that: The top block (73) is tile-shaped, and there are multiple top blocks (73) arranged around the axis of the core (3).
5. A die casting mold for an electric machine housing according to claim 2, characterized in that: The movable mold (2) is provided with a limiting seat (6) on the side away from the fixed mold (1), the push plate (71) slides along the axis direction of the core (3) in the limiting seat (6), the limiting seat (6) is further fixed with a baffle (61), the baffle (61) is located on the side of the positioning plate away from the movable mold (2), and the baffle (61) is fixed opposite to the limiting seat (6).
6. A die casting mold for an electric machine housing according to claim 1, characterized in that: The linkage assembly (5) comprises an inclined guide pillar (51), one end of the inclined guide pillar (51) is fixed on the fixed mold (1), the axis of the inclined guide pillar (51) is inclined from the side close to the fixed mold (1) to the side close to the movable mold (2) and is arranged from inside to outside, the inclined guide pillar (51) penetrates a sliding block (52) along the axis direction of the inclined guide pillar (51), the sliding block (52) slides along the axis direction of the inclined guide pillar (51), and the inclined guide pillar (51) is provided with a plurality of sliding blocks (52) in correspondence.
7. A die casting mold for an electric machine housing according to claim 1, characterized in that: The movable mold (2) is further fixed with a limiting block (24), the limiting block (24) is arranged on the two sides of any sliding block (52) in the width direction and forms a group, the sliding block (52) is embedded in the two limiting blocks (24) in correspondence with the two sides in the width direction, the sliding block (52) and the group of limiting blocks (24) slide along the radial direction of the core (3), the limiting block (24) is provided with a plurality of groups in correspondence with a plurality of sliding blocks (52) on the movable mold (2), and the plurality of sliding blocks (52) move along the direction of approaching or moving away from each other.
8. A die casting mold for an electric machine housing according to claim 1, characterized in that: The side close to the core (3) of any sliding block (52) is fixed with a forming block (53), and the side close to the core (3) of the forming block (53) is formed with a forming surface corresponding to one side in the radial direction of the motor shell.