A molding system for die casting molds

Abstract

This invention relates to the field of die-casting mold technology, and discloses a die-casting mold forming system for forming rotors of different models, comprising: a fixed mold module; a moving mold frame and a moving mold core, the bottom of which has an installation groove; a base support disposed in the installation groove, the base support, the moving mold core, and the fixed mold module forming a rotor cavity; multiple support seats of different heights, which, by installing different support seats, allow adjustment of the height of the base support, thereby adjusting the height of the rotor cavity; and a fine-tuning mechanism comprising a drive component, a push plate, and a push seat, the push plate having a first inclined surface; the push seat having a second inclined surface, the second inclined surface being movably in contact with the first inclined surface; the drive component is configured to drive the push plate so that the first inclined surface pushes against the second inclined surface, thereby fine-tuning the height of the rotor cavity. The advantages of this invention are that this forming system can form multiple different models of rotors within the same series using a single die-casting mold, and can guarantee the forming accuracy and quality of the rotors.

Description

Technical Field

[0001] This invention relates to the field of die casting mold technology, and more particularly to a die casting mold forming system. Background Technology

[0002] The electric motor is one of the core components of a tram, and the rotor is one of the core components of the electric motor. In the actual manufacturing process, multiple iron sheets stacked in sequence are positioned in a die-casting mold and die-cast integrally with the rotor body.

[0003] For different models of rotors within the same series, their thickness dimensions typically differ, while other dimensions remain the same. In existing technology, a corresponding die-casting mold needs to be designed for each different rotor model, resulting in high die-casting costs for rotors. Summary of the Invention

[0004] In view of the above-mentioned shortcomings of the existing technology, the technical problem to be solved by the present invention is to propose a die-casting mold forming system that can form multiple different models of rotors in the same series with a single die-casting mold, and can guarantee the forming accuracy and quality.

[0005] The technical solution adopted by this invention to solve its technical problem is to propose a die-casting mold forming system for forming rotors of different models, comprising:

[0006] Fixed mold module;

[0007] The moving mold frame and the moving mold core are provided. The moving mold core is detachably fixedly installed on the moving mold frame and moves against the fixed mold module. The bottom of the moving mold core is provided with a mounting groove.

[0008] A base is disposed in the mounting groove, and the base, the moving mold core, and the fixed mold module together form a rotor cavity for forming the rotor;

[0009] Multiple support bases of different heights are provided, each of which has a support surface on its top. One of the support bases is detachably installed in the mounting slot, and its support surface supports the base. By installing different support bases, the height of the base can be adjusted to adjust the height of the rotor cavity.

[0010] The fine-tuning mechanism includes a drive component, a push plate, and a push seat. The push plate is movably disposed on the moving mold frame and has a first inclined surface. The push seat supports the support seat at the mounting slot and has a second inclined surface that is movably in contact with the first inclined surface. The drive component is disposed on the moving mold frame and connected to the push plate. The drive component is configured to drive the push plate so that the first inclined surface pushes against the second inclined surface to fine-tune the height dimension of the rotor cavity.

[0011] Furthermore, the push plate pushes against the second inclined surface through the first inclined surface, so that the maximum stroke of the pushing seat that can move up and down is less than the height difference between any two of the support seats;

[0012] The height of the rotor cavity can be coarsely adjusted by mounting the support bases at different heights in the mounting slot; the height of the rotor cavity can be finely adjusted by the fine-tuning mechanism.

[0013] Furthermore, the first inclined plane and the second inclined plane have the same inclination angle, and the angle between the first inclined plane and the second inclined plane and the horizontal plane is within the range of 5±2 degrees.

[0014] Furthermore, each of the multiple support seats of different heights includes a base and a support boss, the support boss protruding upward from the base; the support surface is located on top of the support boss;

[0015] All of the aforementioned support bases have the same base structure, and the heights of the support bosses on the aforementioned support bases are all different.

[0016] Furthermore, each of the support seats is provided with multiple extrusion pins, which are evenly distributed along the circumference of the support boss, and the extrusion end of the extrusion pin can pass upward through the support surface and extend outward from the support boss.

[0017] The extrusion pins on the support bases at different heights have the same location and number, but different lengths.

[0018] Furthermore, the base is provided with multiple pin sleeves, and each of the multiple pin sleeves corresponds one-to-one with a multiple extrusion pin on each of the support seats;

[0019] Each of the bases is provided with a detachably fixed extrusion panel and an extrusion base plate, and the extrusion pin is fixed between the extrusion panel and the extrusion base plate;

[0020] The number of extrusion pins on each support is eight; four extrusion cylinders are evenly distributed along the circumference of the rotor cavity in the moving mold frame, and the output ends of the four extrusion cylinders are connected to the extrusion base plate and the extrusion panel.

[0021] Furthermore, the push plate has a first elongated groove on each side and a second elongated groove in the middle.

[0022] The output shafts of the two extrusion cylinders are respectively inserted into the two first long slots, and the output shafts of the other two extrusion cylinders are inserted into the second long slots, and the output shafts of the four extrusion cylinders are kept out of contact with the push plate.

[0023] Furthermore, the moving mold frame includes a first mold foot, a second mold foot, and at least one moving template, wherein the first mold foot and the second mold foot are respectively supported below the moving template; the moving mold core is detachably and fixedly installed on the moving template;

[0024] The bottom of the moving template is provided with a mounting plate that is detachably and fixedly connected to it, and the mounting plate and the moving template form a sliding groove with one side open, and the push plate is slidably disposed in the sliding groove;

[0025] The four extrusion cylinders are detachably fixed to the mounting plate.

[0026] Furthermore, the moving mold frame is equipped with an oil collector, and the oil inlet and outlet of the four extrusion cylinders are respectively connected to the oil collector through oil pipes.

[0027] Furthermore, the driving component is configured as a driving cylinder, and the output end of the driving cylinder is connected to the push plate.

[0028] Compared with the prior art, the present invention has at least the following beneficial effects:

[0029] In this invention, the die-casting mold forming system can form rotors of different models. An installation groove is provided at the bottom of the moving mold core, and a base support is placed in the installation groove. The base support, moving mold core, and fixed mold module together form a rotor cavity for forming the rotor. The forming system is equipped with multiple support seats of different heights, meaning each support seat can support the base support to a different height. By installing different support seats in the installation groove, the height of the supported base can be adjusted, thereby adjusting the height of the rotor cavity. In other words, the height of the rotor cavity can be coarsely adjusted using the support seats. Furthermore, a fine-tuning mechanism is provided, including a drive component, a push plate, and a push seat. The push seat supports the support seat in the installation groove, and the push seat movably abuts against the first inclined surface of the push plate via a second inclined surface. During use, the drive component drives the push plate, and the push plate pushes against the second inclined surface via the first inclined surface, allowing for height adjustment of the push seat, the support seat, and the base support, thereby fine-tuning the height of the rotor cavity. That is, by using support bases of different heights, the height of the rotor cavity can be coarsely adjusted, and the height of the rotor cavity can be finely adjusted by the fine-tuning mechanism. This ensures that the molding system can mold rotors of different models in the same series, and can effectively guarantee the molding accuracy and quality of the rotors, thereby reducing the die-casting cost of rotors in the same series.

[0030] In this invention, multiple support seats of different heights each include a base and a support boss. The support boss protrudes from the base, and all support seats have the same base structure, ensuring that each support seat can be fitted with the mounting groove at the bottom of the moving mold core, thereby fixing it to the moving mold core. Furthermore, the height of the support boss on each support seat is different (i.e., the height of the support surface of each support seat is different), ensuring that different support seats support the base to different heights, thus allowing effective adjustment of the height dimensions of the rotor cavity to form various rotor models. Further, multiple extrusion pins are evenly distributed along the circumference of the support boss on each support seat. The arrangement and number of extrusion pins are identical, ensuring that each support seat can be used immediately after installation and guaranteeing quality stability during die-casting of different rotor models, improving the die-casting yield. Four extrusion cylinders simultaneously push against the extrusion panel and extrusion base plate, thereby driving eight extrusion pins to achieve multi-point extrusion pin arrangement within a confined space.

[0031] In this invention, a first long groove is provided on both sides of the push plate, and a second long groove is provided in the middle of the push plate. The output shafts of the two extrusion cylinders are respectively inserted into the two first long grooves, and the output shafts of the other two extrusion cylinders are inserted into the second long groove. This ensures that the fine-tuning mechanism will not interfere with the extrusion-related components during the fine-tuning process, and ensures that fine-tuning and extrusion can coexist. Attached Figure Description

[0032] Figure 1 This is a schematic diagram of the overall structure of the die-casting mold forming system of the present invention;

[0033] Figure 2 for Figure 1 A structural diagram from another perspective;

[0034] Figure 3 for Figure 1 A plan view after removing multiple support bases on its right side;

[0035] Figure 4 for Figure 3 Sectional view at point AA;

[0036] Figure 5 for Figure 4 A magnified view of a section at point B in the middle;

[0037] Figure 6 This is an assembly diagram of the moving die core, base, support seat, mounting plate, fine-tuning mechanism, and extrusion-related components;

[0038] Figure 7 To Figure 6 A schematic diagram showing the decomposed middle section of the structure;

[0039] Figure 8 for Figure 7A structural diagram from another perspective;

[0040] Figure 9 An exploded view of the fine-tuning mechanism and extrusion-related components;

[0041] Figure 10 This is a schematic diagram of the structure of a rotor formed by the molding system of the present invention;

[0042] Figure 11 for Figure 10 An exploded diagram (of which only one piece of metal was preserved).

[0043] In the picture:

[0044] 1. Fixed mold module; 100. Rotor cavity;

[0045] 2. Moving mold frame; 20. Moving template; 200. Slide groove; 201. Mounting plate; 21. First mold foot; 22. Second mold foot; 23. Extrusion cylinder; 230. Output shaft; 24. Oil collector;

[0046] 3. Moving mold core; 30. Mounting slot;

[0047] 4. Base support; 40. Pin sleeve;

[0048] 5. Support base; 50. Base; 51. Support boss; 510. Support surface; 52. Extrusion pin; 53. Extrusion panel; 54. Extrusion base plate;

[0049] 6. Fine-tuning mechanism; 60. Driving component; 61. Push plate; 610. First inclined surface; 611. First elongated groove; 612. Second elongated groove; 62. Push seat; 620. Second inclined surface;

[0050] 7. Rotor; 70. Positioning shaft; 71. Iron sheet; 72. Casting body. Detailed Implementation

[0051] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0052] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indication will also change accordingly.

[0053] Furthermore, in this invention, descriptions involving terms such as "first," "second," and "a" are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0054] In this invention, unless otherwise explicitly specified and limited, the terms "connection," "fixed," etc., should be interpreted broadly. For example, "fixed" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0055] Furthermore, the technical solutions of the various embodiments of the present invention can be combined with each other, but only if they are feasible for those skilled in the art. If the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by the present invention.

[0056] like Figures 10-11 As shown, a rotor 7 of a certain type is formed by the die-casting mold forming system of the present invention. Specifically, the rotor 7 mainly includes a positioning shaft 70, multiple stacked iron sheets 71, and a casting body 72. The positioning shaft 70 is located in the center position and its main function is to position the multiple stacked iron sheets 71. During the die-casting process, the positioning shaft 70 is fixed in the die-casting mold, and the multiple iron sheets 71 are stacked on the positioning shaft 70 in sequence to ensure the positional accuracy of the positioning shaft 70 and the iron sheets 71. At least one positioning protrusion is provided on the outer periphery of the positioning shaft 70 along its axial direction, and a corresponding positioning groove is provided on the iron sheet 71. The positioning groove and the positioning protrusion cooperate to ensure that the iron sheet 71 will not rotate after being installed on the positioning shaft 70.

[0057] The iron sheet 71 has multiple through holes evenly distributed along its circumference. When multiple iron sheets 71 are stacked on the positioning shaft 70, the through holes of the multiple iron sheets 71 form multiple longitudinal channels in sequence. These multiple longitudinal channels are relatively narrow. After subsequent die casting, the molten metal will fill these multiple longitudinal channels, fix the multiple iron sheets 71, and form the rotor 7. The part filled by the molten metal is the casting body 72, which is a part of the rotor 7.

[0058] The main difference between different models of rotor 7 in the same series lies in the number of stacked iron sheets 71. Using the die-casting mold forming system in this embodiment, different models of rotor 7 in the same series can be formed without designing different die-casting molds for each different model of rotor 7, thus significantly reducing the die-casting cost of rotor 7.

[0059] like Figures 1-9 As shown in this embodiment, a die-casting mold forming system is used to form rotors 7 of different models. The forming system mainly includes:

[0060] The fixed mold module 1 mainly includes a fixed mold core and at least one fixed mold plate. The fixed mold core is detachably fixed on the fixed mold plate. During the die casting process, the fixed mold core needs to come into contact with the high temperature molten metal, while the fixed mold plate does not need to come into contact with the high temperature molten metal. Therefore, the rigidity and heat resistance of the fixed mold core are superior to those of the fixed mold plate.

[0061] The moving mold frame 2 and the moving mold core 3 are provided. The moving mold core 3 is detachably fixedly installed on the moving mold frame 2 and moves against the fixed mold module 1. Specifically, the moving mold core 3 moves against the fixed mold core. When the die casting mold is in the closed state, the moving mold core 3 abuts against the fixed mold core to ensure that the molten metal does not escape during the die casting process. When the die casting mold is in the open state, the moving mold core 3 moves away from the fixed mold core and detaches from the fixed mold core to facilitate the removal of the formed casting. A mounting groove 30 is provided at the bottom of the moving mold core 3. The mounting groove 30 is mainly used to install the base 4 and the support seat 5.

[0062] The base 4 is disposed in the mounting groove 30. The base 4, the moving mold core 3 and the fixed mold module 1 form a rotor cavity 100 for forming the rotor 7. During die casting, the molten metal fills the rotor cavity 100 and the base 4 is supported on the bottom of the formed rotor 7.

[0063] Multiple support bases 5 of different heights are provided, and each support base 5 has a support surface 510 on its top. One of the support bases 5 is detachably installed in the mounting groove 30, and its support surface 510 supports the base 4. By installing different support bases 5, the height of the base 4 can be adjusted to adjust the height of the rotor cavity 100.

[0064] Understandably, with Figure 1 and Figure 4Using the indicated direction as a reference, the base 4 is supported at different heights by different support seats 5, thus allowing the height of the base 4 in the die-casting mold to be adjusted. This adjusts the height of the rotor cavity 100, enabling the molding of rotors 7 of different heights (i.e., different models of rotors 7 in the same series). After separating the moving mold frame 2 and the moving mold core 3, the mounting groove 30 at the bottom of the moving mold core 3 is exposed, facilitating the disassembly and assembly of the support seats 5 at the mounting groove 30. This ensures that the molding system can easily disassemble and replace the support seats 5 when molding different models of rotors 7. After removing the support seats 5 from the mounting groove 30, the base 4 can be removed from the mounting groove 30, ensuring that the base 4 can also be easily disassembled and replaced.

[0065] The fine-tuning mechanism 6 mainly includes a driving component 60, a push plate 61, and a push seat 62. The push plate 61 is movably disposed on the moving mold frame 2 and has a first inclined surface 610. The push seat 62 supports the support seat 5 at the mounting groove 30 and has a second inclined surface 620, which is movably in contact with the first inclined surface 610. The driving component 60 is disposed on the moving mold frame 2 and connected to the push plate 61. The driving component 60 is configured to drive the push plate 61 so that the first inclined surface 610 pushes against the second inclined surface 620 to fine-tune the height dimension of the rotor cavity 100.

[0066] In this embodiment, the die-casting mold forming system can form rotors 7 of different models. An mounting groove 30 is provided at the bottom of the moving mold core 3, and a base support 4 is placed in the mounting groove 30. The base support 4, the moving mold core 3, and the fixed mold module 1 together form a rotor cavity 100 for forming the rotor 7. The forming system is equipped with multiple support seats 5 of different heights, meaning each support seat 5 can support the base support 4 to a different height. By installing different support seats 5 in the mounting groove 30, the height of the base support 4 can be adjusted, thereby adjusting the height of the rotor cavity 100. In other words, the height of the rotor cavity 100 can be coarsely adjusted using the support seats 5.

[0067] Furthermore, a fine-tuning mechanism 6 is provided, which includes a driving component 60, a push plate 61, and a push seat 62. The push seat 62 supports the support base 5 in the mounting groove 30, and the push seat 62 is movably attached to the first inclined surface 610 on the push plate 61 via the second inclined surface 620. During use, the driving component 60 drives the push plate 61, and the push plate 61 pushes against the second inclined surface 620 via the first inclined surface 610. This allows for the raising and lowering adjustment of the push seat 62, the support base 5, and the base 4, thereby fine-tuning the height of the rotor cavity 100. That is, by using support bases 5 at different heights, the height of the rotor cavity 100 is coarsely adjusted, and by using the fine-tuning mechanism 6, the height of the rotor cavity 100 is finely adjusted. This ensures that the molding system can mold rotors 7 of the same series but different models, and effectively guarantees the molding accuracy and quality of the rotor 7, reducing the die-casting cost of rotors 7 of the same series.

[0068] like Figures 1-2 as well as Figures 5-9 As shown, the push plate 61 pushes against the second inclined surface 620 of the push seat 62 through the first inclined surface 610, so that the maximum stroke of the push seat 62 can move up and down is less than the height difference between any two support seats 5. It can be understood that, in this embodiment, by selecting support seats 5 of different heights to install in the mounting groove 30 at the bottom of the moving mold core 3, the coarse adjustment of the height dimension of the rotor cavity 100 is achieved, and the fine adjustment of the height dimension of the rotor cavity 100 is achieved by the fine adjustment mechanism 6. Therefore, the height difference between the support seats 5 is relatively large, while the height value that the fine adjustment mechanism 6 can adjust is relatively small. The stroke range of the push plate 61 pushing against the second inclined surface 620 of the push seat 62 through the first inclined surface 610 is the height range that the base 4 can be adjusted by the fine adjustment mechanism 6, which is the height range of the rotor cavity 100 that the fine adjustment mechanism 6 can adjust.

[0069] In this embodiment, the height of the rotor cavity 100 is coarsely adjusted by mounting the support bases 5 at different heights on the mounting groove 30; and the height of the rotor cavity 100 is finely adjusted by the fine-tuning mechanism 6.

[0070] Furthermore, the first inclined surface 610 and the second inclined surface 620 have the same inclination angle, and the angle between the first inclined surface 610 and the second inclined surface 620 and the horizontal plane is within the range of 5±2 degrees. In this embodiment, since the fine-tuning mechanism 6 only needs to fine-tune the height value of the base 4, the sliding fit of the first inclined surface 610 and the second inclined surface 620 does not require a large stroke. Therefore, the inclination angles of the first inclined surface 610 and the second inclined surface 620 are both small, between three and seven degrees, preferably five degrees. Moreover, the fact that the first inclined surface 610 and the second inclined surface 620 have the same inclination angle ensures their fit, thereby ensuring the structural stability of the push seat 62, the support seat 5, and the base 4 after fine-tuning.

[0071] In the molding system of this embodiment, each of the multiple support seats 5 of different heights includes a base 50 and a support boss 51. The support boss 51 protrudes upward from the base 50. The support boss 51 is preferably integrally formed with the base 50. Of course, the support boss 51 can also be separately formed from the base 50. Furthermore, the support boss 51 is fixedly connected to the base 50 by bolts.

[0072] The supporting surface 510 is located on top of the supporting boss 51 and is used to support the base 4. Specifically, in this embodiment, the base 50 structure of all the supporting seats 5 is the same, ensuring that all the supporting seats 5 can be adapted to the mounting groove 30 on the moving mold core 3, so that each supporting seat 5 can be installed in the mounting groove 30 of the moving mold core 3; otherwise, the supporting seats 5 cannot be selected.

[0073] Furthermore, the height of the support boss 51 of all the support seats 5 is different because different support seats 5 are used to form rotors 7 of different sizes. The height of the support boss 51 of different support seats 5 is different. Therefore, different support seats 5 can support the base 4 to different heights, resulting in different heights of the rotor cavity 100.

[0074] In each support 5, the outer dimensions of its base 50 are larger than those of its support boss 51. This facilitates the installation of other structures on the support 5 and prevents molten metal from escaping during die casting, while also ensuring the support 5 provides effective support for the base 4. Furthermore, both the support boss 51 and the base 50 are cylindrical and coaxial. The base 50 has a straight surface to prevent rotation, ensuring that the support 5 will not rotate relative to the die casting mold after installation, thus guaranteeing smooth die casting.

[0075] In practical use, each of the multiple support seats 5 of different heights in this embodiment includes a base 50 and a support boss 51. The support boss 51 protrudes from the base 50, and the base 50 of all support seats 5 has the same structure, ensuring that each support seat 5 can be adapted to the mounting groove 30 at the bottom of the moving mold core 3, and thus can be fixed to the moving mold core 3. Furthermore, the height of the support boss 51 on each support seat 5 is different (i.e., the height of the support surface 510 of each support seat 5 is different), ensuring that different support seats 5 support the base 4 at different heights, thereby effectively adjusting the height dimension of the rotor cavity 100 to form various different models of rotors 7.

[0076] Furthermore, in the molding system of this embodiment, each of the support seats 5 is equipped with multiple extrusion pins 52. The multiple extrusion pins 52 are evenly distributed along the circumference of the support boss 51, and the extrusion end of the extrusion pin 52 can pass upward through the support surface 510 and extend outward from the support boss 51. Specifically, the upper end of the extrusion pin 52 is set as the extrusion end. During the die casting process, the extrusion end of the extrusion pin 52 can pass upward through the support boss 51 and through the bottom support 4, and extend onto the molded casting to locally extrude the casting and ensure the density of the casting.

[0077] Since the die-casting mold in this embodiment is used to form the rotor 7, and the rotor 7 is a cylindrical product with a large height dimension, the flow rate of the molten metal at the bottom of the rotor 7 will slow down considerably during die-casting, which can easily lead to the formation of air holes, shrinkage cavities, or looseness at that location. However, in this embodiment, multiple extrusion pins 52 arranged circumferentially along the rotor cavity 100 locally extrude the bottom of the rotor 7, which can effectively ensure the forming quality of the rotor 7.

[0078] Specifically, the extrusion pins 52 on the support seats 5 at different heights are positioned and numbered identically, ensuring that the extrusion position on different models of rotors 7 is the same after each support seat 5 is installed in the mounting groove 30, thus guaranteeing the structural consistency of the formed rotors 7. Furthermore, the lengths of the extrusion pins 52 on the support seats 5 at different heights are different because the heights of the support bosses 51 on different support seats 5 are different. Therefore, the lengths of the extrusion pins 52 are also different, ensuring that after each support seat 5 is installed in the mounting groove 30, the extrusion pins 52 on it can locally extrude force on the bottom of the formed rotor 7.

[0079] More specifically, the base 4 is provided with multiple pin sleeves 40, and each of the multiple pin sleeves 40 corresponds one-to-one with the multiple extrusion pins 52 on each of the support seats 5. The multiple extrusion pins 52 are movably inserted into the multiple pin sleeves 40. The pin sleeves 40 can guide the movement of the extrusion pins 52. In addition, during the repeated die casting process of the die casting mold, the extrusion pins 52 are prone to wear on the pin sleeves 40, so as to facilitate timely replacement of the pin sleeves 40 and prevent the molten metal from overflowing from the extrusion pins 52.

[0080] Each of the bases 50 is provided with a detachably fixed extrusion panel 53 and an extrusion base plate 54, and the extrusion pin 52 is fixed between the extrusion panel 53 and the extrusion base plate 54. Specifically, the end of the extrusion pin 52 away from the extrusion end has a mounting platform, and the extrusion panel 53 has a groove corresponding to the mounting platform. The mounting platform is installed in the groove corresponding to the mounting platform, and the extrusion base plate 54 is fixedly installed at the bottom of the extrusion panel 53, limiting the mounting platform on the extrusion panel 53, that is, fixing the extrusion pin 52 between the extrusion panel 53 and the extrusion base plate 54.

[0081] In a preferred embodiment, each support 5 has eight extrusion pins 52; the moving mold frame 2 has four extrusion cylinders 23 evenly distributed along the circumference of the rotor cavity 100, and the output ends of the four extrusion cylinders 23 are connected to the extrusion base plate 54 and the extrusion panel 53.

[0082] In this embodiment, such a dense arrangement of extrusion pins 52 is required in the narrow space of the die-casting mold to ensure the quality of die-casting. By arranging four extrusion cylinders 23 to drive the extrusion base plate 54 and extrusion panel 53, the eight extrusion pins 52 are driven to move. This ensures that the structure is compact and there is no relative interference, and also ensures the consistency of the movement of multiple extrusion pins 52.

[0083] In this embodiment, multiple extrusion pins 52 are evenly distributed along the circumference of the support boss 51 on each support base 5. The arrangement position and number of the extrusion pins 52 are the same, ensuring that each support base 5 can be installed and used immediately, and ensuring the quality stability during die casting of different models of rotors 7, thereby improving the die casting qualification rate. Four extrusion cylinders 23 simultaneously push against the extrusion panel 53 and the extrusion base plate 54, thereby driving eight extrusion pins 52, realizing the arrangement of multiple extrusion pins 52 in a confined space.

[0084] Furthermore, the push plate 61 has first elongated grooves 611 on both sides and a second elongated groove 612 in the middle; the length directions of both the first and second elongated grooves 611 and 612 are the same as the sliding direction of the push plate 61. The output shafts 230 of the two extrusion cylinders 23 are respectively inserted into the two first elongated grooves 611, that is, the output shaft 230 of one extrusion cylinder 23 is inserted into one first elongated groove 611, and the output shaft 230 of the opposite extrusion cylinder 23 is inserted into the other first elongated groove 611. The output shafts 230 of the other two extrusion cylinders 23 are inserted into the second elongated grooves 612, and the output shafts 230 of all four extrusion cylinders 23 are always kept out of contact with the push plate 61.

[0085] When the drive unit 60 drives the push plate 61 to slide, the relative position of the output shaft 230 of the extrusion cylinder 23 changes in the first elongated groove 611 or the second elongated groove 612, and the push plate 61 will not contact the output shaft 230 of the extrusion cylinder 23, ensuring that the densely arranged extrusion-related components will not interfere with the movement of the push plate 61, and ensuring the smooth operation of the fine-tuning mechanism 6.

[0086] In actual use, this embodiment provides a first long groove 611 on both sides of the push plate 61 and a second long groove 612 in the middle of the push plate 61. The output shafts 230 of the two extrusion cylinders 23 pass through the two first long grooves 611 respectively, and the output shafts 230 of the other two extrusion cylinders 23 pass through the second long groove 612. This ensures that the fine-tuning mechanism 6 will not interfere with the extrusion-related components during the fine-tuning process, and that fine-tuning and extrusion can coexist.

[0087] In this embodiment, the moving mold frame 2 includes a first mold foot 21, a second mold foot 22, and at least one moving template 20. The first mold foot 21 and the second mold foot 22 are respectively supported below the moving template 20. The mold feet support the weight of the entire die-casting mold, protecting the overall structural strength. The moving mold core 3 is detachably fixed to the moving template 20. For example, the moving mold core 3 is fixed to the moving template 20 by bolts, ensuring convenient assembly and disassembly.

[0088] The bottom of the movable template 20 is provided with a mounting plate 201 that is detachably and fixedly connected to it, and the mounting plate 201 and the movable template 20 form a side-open slide groove 200. The push plate 61 is slidably disposed in the slide groove 200, and the push plate 61 can be inserted into the slide groove 200 from the side-open opening of the slide groove 200, ensuring convenient disassembly and assembly.

[0089] Of course, during use, it is necessary to ensure that the push plate 61 does not come out of the open side opening of the slide groove 200. A limit block can be set on the moving template 20. After the push plate 61 abuts against the limit block, it cannot continue to slide, thus preventing the push plate 61 from disengaging from the slide groove 200. Alternatively, the push plate 61 can be prevented from disengaging from the slide groove 200 by controlling the movement stroke of the drive component 60.

[0090] The four extrusion cylinders 23 are detachably fixed on the mounting plate 201, and can be disassembled and replaced directly from below the mounting plate 201, ensuring convenient disassembly and replacement of the extrusion cylinders 23.

[0091] Preferably, in this embodiment, the moving mold frame 2 is provided with an oil collector 24, and the oil inlet and outlet of the four extrusion cylinders 23 are respectively connected to the oil collector 24 through oil pipes. That is, the oil inlet of each extrusion cylinder 23 is connected to the oil collector 24 through an oil pipe, and the oil outlet of each extrusion cylinder 23 is also connected to the oil collector 24 through an oil pipe. The hydraulic station on the die-casting machine delivers oil to the oil collector 24, thereby delivering oil to each extrusion cylinder 23. The oil passing through the extrusion cylinders 23 can also be recovered to the hydraulic station through the oil collector 24. The setting of the oil collector 24 facilitates oil collection, ensures high efficiency of the die-casting mold during upper and lower mold operations, and ensures the neat structure of the die-casting mold.

[0092] Preferably, the driving component 60 is a driving cylinder, and the output end of the driving cylinder is connected to the push plate 61. The driving cylinder causes the push plate 61 to slide by extending and retracting its output end. Of course, the driving component 60 can also be configured in other forms to drive the push plate 61 to slide, such as a pneumatic cylinder, which will not be elaborated here.

[0093] In this embodiment, the working principle of the die-casting mold forming system is as follows:

[0094] According to the model of the rotor 7 to be formed, select the corresponding support base 5, and install the support base 5 from the mounting groove 30 at the bottom of the moving mold core 3 into the die casting mold. The support base 5 supports the bottom support 4 in the die casting mold.

[0095] The die-casting mold opens, and the moving mold frame 2 and the moving mold core 3 separate from the fixed mold module 1;

[0096] Multiple iron sheets 71 are stacked sequentially on the positioning shaft 70, and the positioning shaft 70 and the multiple iron sheets 71 are positioned as a whole in the die-casting mold. The die-casting mold is closed, and the moving mold frame 2 and the moving mold core 3 move toward the fixed mold module 1. The lower end of the positioning shaft 70 is fixed to the base 4, and the upper end of the positioning shaft 70 is fixed to the fixed mold module 1.

[0097] The molten metal enters from the flow channel on the fixed mold module 1 and fills the rotor cavity 100. Multiple iron pieces 71 are integrally die-cast with the molten metal as inserts to form the rotor 7.

[0098] During the cooling process of the molten metal, four extrusion cylinders 23 synchronously drive the extrusion plate 53 and the extrusion base plate 54 to move upward, so that the eight extrusion pins 52 extrude the bottom of the rotor 7; after the extrusion is completed, the extrusion cylinders 23 drive the extrusion pins 52 to retract and reset.

[0099] When the die-casting mold is opened, the moving mold frame 2 and the moving mold core 3 are separated from the fixed mold module 1. The ejection mechanism of the die-casting mold ejects the formed rotor 7, and the formed rotor 7 can be taken out.

[0100] Proceed to the next die-casting stage.

[0101] When it is necessary to mold other types of rotors 7, the original support base 5 is removed from the mounting groove 30 at the bottom of the moving mold core 3, and the support base 5 corresponding to the rotor 7 to be molded is installed into the mounting groove 30. The support base 5 supports the bottom support 4 in the die casting mold and is at another height. The subsequent die casting molding action is the same as the die casting molding action described above, and will not be repeated here.

[0102] In this solution, the molding system can mold multiple different models of rotor 7 in the same series using a single die-casting mold, and can ensure the molding accuracy and quality of rotor 7.

Claims

1. A die-casting mold forming system for forming rotors of different models, characterized in that, include: Fixed mold module; The moving mold frame and the moving mold core are provided. The moving mold core is detachably fixedly installed on the moving mold frame and moves against the fixed mold module. The bottom of the moving mold core is provided with a mounting groove. A base is disposed in the mounting groove, and the base, the moving mold core, and the fixed mold module together form a rotor cavity for forming the rotor; Multiple support bases of different heights are provided, each of which has a support surface on its top. One of the support bases is detachably installed in the mounting slot, and its support surface supports the base. By installing different support bases, the height of the base can be adjusted to adjust the height of the rotor cavity. The fine-tuning mechanism includes a drive component, a push plate, and a push seat. The push plate is movably disposed on the moving mold frame and has a first inclined surface. The push seat supports the support seat at the mounting slot and has a second inclined surface that is movably in contact with the first inclined surface. The drive component is disposed on the moving mold frame and connected to the push plate. The drive component is configured to drive the push plate so that the first inclined surface pushes against the second inclined surface, thereby fine-tuning the height dimension of the rotor cavity. The push plate abuts against the second inclined surface through the first inclined surface, so that the maximum stroke of the push seat can move up and down is less than the height difference between any two support seats; by installing support seats of different heights in the mounting slot, the height dimension of the rotor cavity can be coarsely adjusted; the height dimension of the rotor cavity can be finely adjusted by the fine adjustment mechanism. The multiple support seats of different heights each include a base and a support boss, the support boss protruding upward from the base; the support surface is located on top of the support boss; the base structure of all the support seats is the same, and the height of the support boss of the support seats is different. Each of the support seats is equipped with multiple extrusion pins, which are evenly distributed along the circumference of the support boss. The extrusion ends of the extrusion pins can pass upward through the support surface and extend outward from the support boss. The extrusion pins on the support seats of different heights have the same setting position and number, but different lengths. The base is provided with multiple pin sleeves, each of which corresponds one-to-one with multiple extrusion pins on each support seat; each base is provided with an extrusion panel and an extrusion base plate that are detachably and fixedly connected, and the extrusion pins are fixed between the extrusion panel and the extrusion base plate; each support seat has eight extrusion pins; the moving mold frame is evenly distributed with four extrusion cylinders along the circumference of the rotor cavity, and the output ends of the four extrusion cylinders are connected to the extrusion base plate and the extrusion panel; The push plate has a first elongated groove on each side and a second elongated groove in the middle. The output shafts of the two extrusion cylinders are respectively inserted into the two first long slots, and the output shafts of the other two extrusion cylinders are inserted into the second long slots, and the output shafts of the four extrusion cylinders are kept out of contact with the push plate.

2. The forming system of the die-casting mold according to claim 1, characterized in that, The first and second inclined planes have the same inclination angle, and the angle between the first and second inclined planes and the horizontal plane is within the range of 5±2 degrees.

3. The forming system of the die-casting mold according to claim 1, characterized in that, The moving mold frame includes a first mold foot, a second mold foot, and at least one moving template, with the first mold foot and the second mold foot respectively supported below the moving template; the moving mold core is detachably and fixedly installed on the moving template; The bottom of the moving template is provided with a mounting plate that is detachably and fixedly connected to it, and the mounting plate and the moving template form a sliding groove with one side open, and the push plate is slidably disposed in the sliding groove; The four extrusion cylinders are detachably fixed to the mounting plate.

4. The forming system of the die-casting mold according to claim 1, characterized in that, The moving mold frame is equipped with an oil collector, and the oil inlet and outlet of the four extrusion cylinders are respectively connected to the oil collector through oil pipes.

5. The forming system of the die-casting mold according to claim 1, characterized in that, The driving component is configured as a driving cylinder, and the output end of the driving cylinder is connected to the push plate.

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