A die-casting machine for micro inverter housing

Abstract

The present invention relates to the technical field of die-casting machines, and discloses a micro inverter housing die-casting machine, comprising a machine base, a housing arranged on the machine base, a clamping assembly arranged on the machine base, a mold assembly arranged on the clamping assembly, and a die-casting mechanism arranged on the right side of the clamping assembly; the mold assembly comprises a fixed mold base and a movable mold base, and a cavity for die-casting of the inverter housing is provided on the fixed mold base and the movable mold base. The inverter housing die-casting machine realizes multi-level buffering of the impact force during the clamping process by setting three groups of interrelated damping structures, which not only reduces the damage to the mold caused by the impact force during the clamping process, but also improves the durability and stability of the mold, and enables the movable mold base and the fixed mold base to generate a strong self-locking force at the moment of contact, effectively preventing the expansion force generated by the molten metal liquid during high-pressure injection from causing the mold gap to increase, thereby improving the locking stability of the mold and the die-casting molding accuracy of the die-casting part.

Description

Technical Field

[0001] The invention belongs to the technical field of die-casting machines, and in particular relates to a die-casting machine for a micro inverter housing. Background Art

[0002] The inverter is able to convert AC and DC, especially convert DC to AC, which is achieved by various semiconductor components forming related circuits. The production quality of the inverter housing is crucial to the overall performance of the equipment. The inverter housing is usually made of metal through precision die-casting process to ensure that it has good structural strength and electromagnetic shielding performance. In this production process, the die-casting machine, as the core equipment, plays the role of injecting molten metal into the mold and cooling it into shape.

[0003] At present, there is a significant technical difficulty in the existing inverter housing die-casting machine technology: in the process of precise mold closing of the movable mold and the fixed mold to form the mold cavity, due to the high pressure that needs to be applied, a huge impact force will be generated when the movable mold and the fixed mold in the mold contact. This impact force not only accelerates the wear of the mold, but may also cause metal liquid leakage during the die-casting process due to improper control of the mold gap, thereby affecting the accuracy and integrity of the inverter housing, and the existing die-casting machine is insufficient in resisting the expansion force generated by the high-pressure injection of molten metal. Insufficient clamping force will cause the mold gap to expand under the pressure of the metal liquid, thereby generating burrs on the edge of the inverter housing, which not only reduces the appearance and quality of the product, but may also affect its electrical performance and sealing, and increase the difficulty and cost of subsequent processing; therefore, there are deficiencies and cannot meet the production and use needs of manufacturers. Therefore, it is necessary to further improve it.

[0004] Therefore, in view of this, the existing structure and defects are studied and improved, and an inverter housing die-casting machine is provided to achieve a more practical purpose. Summary of the invention

[0005] In order to solve the above technical problems, the present invention provides a micro inverter housing die-casting machine, which is achieved by the following specific technical means:

[0006] A die-casting machine for a micro inverter housing comprises a machine base, a housing arranged on the machine base, a clamping assembly arranged on the machine base, a mold assembly arranged on the clamping assembly, and a die-casting mechanism arranged on the right side of the clamping assembly;

[0007] The mold assembly includes a fixed mold base and a movable mold base, and the fixed mold base and the movable mold base are provided with a mold cavity for die-casting the inverter housing. The fixed mold base and the movable mold base are driven to contact and close the molds through the clamping assembly, and then the alloy metal liquid is injected into the mold cavity between the fixed mold base and the movable mold base by the die-casting mechanism for die-casting;

[0008] The mold assembly is provided with a positioning locking assembly for strengthening the clamping force of the fixed mold seat and the movable mold seat, and the positioning locking assembly includes a positioning rod fixedly assembled on the fixed mold seat, and a positioning sleeve fixedly assembled on the movable mold seat. When the fixed mold seat and the movable mold seat are molded together, the positioning rod and the positioning sleeve are combined to apply the clamping force to the fixed mold seat and the movable mold seat;

[0009] A damping mechanism and a transmission sensing component are provided inside the positioning sleeve, an electromagnet ring is fixedly installed on the inner wall of the positioning sleeve, and a locking iron ring is fixedly installed on the outer periphery of the positioning rod. The positioning rod is inserted into the positioning sleeve, and the damping mechanism is used for damping while driving the transmission sensing component to send an electrical signal to start the electromagnet ring, so that the electromagnet ring locks and reinforces the locking iron ring.

[0010] As a further description of the above technical solution: during the mold closing process, the positioning rod on the positioning seat is inserted into the positioning sleeve on the movable mold seat to achieve precise positioning between the molds. At the same time, by setting three groups of interrelated damping structures, multi-level buffering of the impact force during mold closing is achieved. This setting not only reduces the damage to the mold caused by the impact force during mold closing, but also improves the durability and stability of the mold. In the mold closing process, not only does the movable mold seat and the fixed mold seat generate a strong self-locking force at the moment of contact, but it also effectively prevents the expansion force generated by the molten metal during high-pressure injection from causing the mold gap to increase, thereby improving the locking stability of the mold and the die-casting precision of the die-casting, ensuring high-quality production of the inverter housing, effectively avoiding overflow and burrs on the die-casting, and further improving product quality and production efficiency.

[0011] Further, the clamping assembly includes a fixed base and a fixed seat fixedly assembled on the machine base, and the fixed seat is located on the right side of the fixed base, a material injection port is arranged on the right side of the fixed seat, a movable seat is arranged between the fixed base and the fixed seat, a guide slide bar is fixedly assembled between the fixed base and the fixed seat, and the movable seat is slidably mounted on the guide slide bar, a hydraulic cylinder is fixedly assembled on the left side of the fixed base, and one side of the hydraulic cylinder is fixedly connected to the movable seat by a piston rod passing through the fixed base;

[0012] Wherein, the fixed mold seat is fixedly assembled on the fixed seat, and the movable mold seat is fixedly assembled on the movable seat.

[0013] As a further description of the above technical solution: the start of the hydraulic cylinder is controlled by a background program, so that the movable mold base and the fixed mold base are driven to gradually approach and finally tightly combine under the strong thrust of the hydraulic cylinder to form a mold closing state.

[0014] Further, the damping mechanism includes a first damping component, a second damping component, a third damping component and a transmission component;

[0015] The inner wall of the positioning sleeve is provided with a plurality of chambers, and the first damping component, the second damping component, the third damping component and the transmission component are respectively arranged in different chambers of the inner wall of the positioning sleeve.

[0016] As a further description of the above technical solution: by setting up three groups of interrelated damping structures, multi-level buffering of the impact force during mold closing is achieved. This setting not only reduces the damage to the mold caused by the impact force during mold closing, but also improves the durability and stability of the mold.

[0017] Further, the first damping assembly includes a first damping capsule arranged in the inner wall chamber of the positioning sleeve, a plurality of first damping plates arranged in an annular shape are arranged inside the first damping capsule, a first damping block is fixedly installed on a side of the first damping plate away from the first damping capsule, and a first damping spring is fixedly connected between the first damping plate and the chamber wall of the positioning sleeve;

[0018] Wherein, one side of the first damping block is an inclined surface.

[0019] As a further description of the above technical solution: through this setting, the impact force during mold closing can be effectively mitigated based on the viscous resistance of the damping fluid, which can have a certain protective effect on the mold and achieve initial pressure attenuation.

[0020] Further, the second damping assembly includes a second damping capsule arranged in the inner wall chamber of the positioning sleeve, a plurality of second damping plates arranged in an annular shape are arranged inside the second damping capsule, a second damping block is fixedly installed on a side of the second damping plate away from the second damping capsule, a second damping spring is fixedly connected between the second damping plate and the chamber wall of the positioning sleeve, and a connecting pipe 1 is fixedly connected between the second damping capsule and the first damping capsule;

[0021] Wherein, one side of the second damping block is an inclined surface.

[0022] As a further description of the above technical solution: through this setting, the mold closing pressure can be buffered for the second time, which further enhances the damping effect and ensures stability and safety during mold closing.

[0023] Further, the third damping assembly includes a third damping bag arranged in the inner wall chamber of the positioning sleeve, a plurality of third damping plates arranged in an annular shape are arranged inside the third damping bag, a third damping block is fixedly installed on the side of the third damping plate away from the third damping bag, a third damping spring is fixedly connected between the third damping plate and the chamber wall of the positioning sleeve, and a connecting pipe 2 is fixedly connected between the third damping bag and the second damping bag;

[0024] Wherein, one side of the third damping block is an inclined surface.

[0025] As a further description of the above technical solution: this setting can provide a third damping buffer for the mold closing pressure, which further reduces the impact force during mold closing and improves the durability and stability of the mold.

[0026] Furthermore, the transmission assembly includes a transmission bag arranged in the inner wall chamber of the positioning sleeve, and a connecting pipe three is fixedly connected between the transmission bag and the third damping bag.

[0027] As a further description of the above technical solution: as the damping fluid is transferred, the damping fluid in the third damping bag is further squeezed into the transmission bag, causing it to expand and drive the transmission sensing component, further improving its applicability.

[0028] Further, the transmission sensing component includes a movable plate arranged in the inner wall chamber of the positioning sleeve, the movable plate is arranged on one side of the transmission capsule, a movable rod is fixedly installed on the side of the movable plate away from the transmission capsule, the other end of the movable rod extends to the outside of the positioning sleeve, the outer periphery of the movable rod is provided with a support spring, and the support spring is located between the movable plate and the cavity wall of the positioning sleeve;

[0029] The transmission induction component also includes a first induction sheet fixedly mounted on the side wall of the movable plate, and a second induction sheet fixedly mounted on the inner wall chamber of the positioning sleeve, and the first induction sheet is electrically connected to the second induction sheet.

[0030] As a further description of the above technical solution: through this setting, the electromagnet ring can be energized and generate magnetism, and the magnetic force of the electromagnet ring is used to firmly adsorb the locking iron ring, thereby ensuring the locking force between the movable mold base and the fixed mold base.

[0031] Furthermore, a chamber is opened inside the movable mold base, and a unloading assembly is arranged in the chamber, and the unloading assembly includes a unloading plate, one side of which is fixedly connected to the movable rod, and a unloading pin for unloading the die-cast inverter housing is fixedly installed on the side of the unloading plate facing the cavity of the movable mold base.

[0032] As a further description of the above technical solution: After the die-casting is formed, the automatic unloading function of the die-casting is realized through this setting, which greatly improves the production efficiency and the degree of automation, while avoiding damage and defects caused by manual operation. The automatic unloading function also ensures the integrity and surface quality of the die-casting, providing a strong guarantee for subsequent processing and use.

[0033] Furthermore, a sealing component is provided on the movable mold base, and the sealing component is installed by matching with the discharge ejector pin;

[0034] The sealing assembly comprises a sealing shell fixedly assembled on the movable mold seat, a plurality of sealing blocks are arranged inside the sealing shell, a sealing spring is fixedly connected between the sealing block and the inner wall of the sealing shell, and one side of the sealing block is arranged with an inclined surface.

[0035] As a further description of the above technical solution: during the mold closing process, this arrangement can make the sealing blocks close to each other based on the elastic force of the sealing spring to form a closed cavity space, which provides favorable conditions for the molding of the die casting.

[0036] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0037] 1. The inverter housing die-casting machine realizes precise positioning between the molds by means of the cooperation between the mold clamping assembly, the mold assembly, the positioning locking assembly and the damping mechanism. During the mold clamping process, the positioning rod on the positioning seat is inserted into the positioning sleeve on the movable mold seat. At the same time, three sets of interrelated damping structures are set to achieve multi-level buffering of the impact force during mold clamping. The first damping assembly is used to reduce the impact force while providing power for the start-up of the second damping assembly. The second damping assembly is used to further absorb the remaining impact force and create conditions for the start-up of the third damping assembly. Finally, the third damping assembly is used to completely absorb the remaining impact force. This setting not only reduces the damage to the mold caused by the impact force during mold clamping, but also improves the durability and stability of the mold.

[0038] 2. The inverter housing die-casting machine cooperates with the mold assembly, positioning locking assembly, damping mechanism and transmission sensing assembly. Through this setting, during the mold closing process, not only does the movable mold base and the fixed mold base generate a strong self-locking force at the moment of contact, but it also effectively prevents the expansion force generated by the molten metal liquid during high-pressure injection from causing the mold gap to increase, thereby improving the locking stability of the mold and the die-casting molding accuracy of the die-casting parts, ensuring the high-quality production of the inverter housing. At the same time, this setting can quickly reach and maintain a clamping force level higher than that of the traditional die-casting machine during the mold closing stage. By accurately controlling the mold closing speed and pressure, it ensures that the mold is still stable and without shaking during high-pressure injection, effectively avoiding overflow and burrs on die-casting parts, and further improving product quality and production efficiency.

[0039] 3. The inverter housing die-casting machine cooperates with the clamping assembly, the mold assembly, the positioning locking assembly, the unloading assembly and the sealing assembly. During the clamping process, the unloading ejector pin leaves the cavity of the movable die seat, and the sealing blocks are closed to each other based on the elastic force of the sealing spring to form a closed cavity space, which provides favorable conditions for the molding of the die-casting. After the die-casting is formed, the movable die seat is separated from the fixed die seat, and when the unloading plate is reset, the unloading ejector pin on it is inserted into the cavity of the movable die seat to push out the molded die-casting. This process realizes the automatic unloading function of the die-casting, greatly improves the production efficiency and the degree of automation, and avoids damage and defects caused by manual operation. The automatic unloading function also ensures the integrity and surface quality of the die-casting, providing a strong guarantee for subsequent processing and use. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for describing the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0041] Figure 1 It shows a schematic diagram of an overall three-dimensional structure provided according to an embodiment of the present invention;

[0042] Figure 2 A schematic diagram of the installation structure of the die-casting mechanism and the clamping assembly according to an embodiment of the present invention is shown;

[0043] Figure 3 A schematic diagram of the installation structure of a mold clamping assembly and a mold assembly according to an embodiment of the present invention is shown;

[0044] Figure 4 A schematic diagram of the mold separation structure of the fixed mold base and the movable mold base provided in an embodiment of the present invention is shown;

[0045] Figure 5 A schematic diagram of the mold-matching structure of a fixed mold base and a movable mold base provided according to an embodiment of the present invention is shown;

[0046] Figure 6 It shows a schematic structural diagram of a fixed mold base and a movable mold base provided according to an embodiment of the present invention;

[0047] Figure 7 A schematic diagram of the installation structure of the movable mold base and the positioning sleeve provided in an embodiment of the present invention is shown;

[0048] Figure 8 A schematic diagram of the installation structure of the positioning rod and the positioning sleeve provided in an embodiment of the present invention is shown;

[0049] Fig. 9 A schematic diagram of a partial structure of the installation of a positioning rod and a positioning sleeve according to an embodiment of the present invention is shown;

[0050] Fig.10 The embodiment provided according to the present invention shows Fig. 9 The enlarged schematic diagram of part A in the middle;

[0051] Fig.11 It shows a schematic diagram of the installation structure of the discharge assembly and the sealing assembly provided in an embodiment of the present invention;

[0052] Fig.12 A schematic diagram of the installation structure of the positioning sleeve and the stripping plate provided in an embodiment of the present invention is shown;

[0053] Fig.13 A schematic diagram of the partial structure of a sealing assembly provided according to an embodiment of the present invention is shown.

[0054] Legend:

[0055] 10. Machine base; 11. Machine casing;

[0056] 20. Die casting mechanism;

[0057] 30. mold clamping assembly; 31. fixed base; 32. fixed seat; 321. injection port; 33. movable seat; 34. guide slide rod; 35. hydraulic cylinder;

[0058] 40. mold assembly; 41. fixed mold base; 42. movable mold base;

[0059] 50. Positioning locking assembly; 51. Positioning rod; 511. Locking iron ring; 52. Positioning sleeve; 521. Electromagnetic iron ring;

[0060] 60. Damping mechanism; 61. First damping assembly; 611. First damping capsule; 612. First damping plate; 613. First damping block; 614. First damping spring; 62. Second damping assembly; 621. Second damping capsule; 622. Second damping plate; 623. Second damping block; 624. Second damping spring; 625. Connecting pipe 1; 63. Third damping assembly; 631. Third damping capsule; 632. Third damping plate; 633. Third damping block; 634. Third damping spring; 635. Connecting pipe 2; 64. Transmission assembly; 641. Transmission capsule; 642. Connecting pipe 3;

[0061] 70. Transmission induction assembly; 71. Movable plate; 72. Movable rod; 73. Support spring; 74. First induction sheet; 75. Second induction sheet;

[0062] 80. unloading assembly; 81. unloading plate; 82. unloading ejector pin;

[0063] 90. Sealing assembly; 91. Sealing shell; 92. Sealing block; 93. Sealing spring. DETAILED DESCRIPTION

[0064] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0065] See also Figures 1 to 13A die-casting machine for a micro inverter housing comprises a machine base 10, a housing 11 arranged on the machine base 10, a clamping assembly 30 arranged on the machine base 10, a die assembly 40 arranged on the clamping assembly 30, and a die-casting mechanism 20 arranged on the right side of the clamping assembly 30; the die assembly 40 comprises a fixed die seat 41 and a movable die seat 42, and cavities for die-casting of the inverter housing are provided on the fixed die seat 41 and the movable die seat 42, the fixed die seat 41 and the movable die seat 42 are driven to contact and clamp the fixed die seat 41 and the movable die seat 42 through the clamping assembly 30, and then the alloy metal liquid is injected into the die-casting mechanism 20 The mold assembly 40 is die-casted in the mold cavity between the fixed mold seat 41 and the movable mold seat 42; a positioning locking assembly 50 is provided on the mold assembly 40 to strengthen the clamping force of the fixed mold seat 41 and the movable mold seat 42. The positioning locking assembly 50 includes a positioning rod 51 fixedly assembled on the fixed mold seat 41, and a positioning sleeve 52 fixedly assembled on the movable mold seat 42. When the fixed mold seat 41 and the movable mold seat 42 are molded, the positioning rod 51 and the positioning sleeve 52 are combined to apply the clamping force to the fixed mold seat 41 and the movable mold seat 42; a damping mechanism 60 and a transmission sensing assembly 70 are provided inside the positioning sleeve 52, and the positioning sleeve 52 The inner wall of the positioning rod 51 is fixedly equipped with an electromagnet ring 521, and the outer periphery of the positioning rod 51 is fixedly equipped with a locking iron ring 511. The positioning rod 51 is inserted into the positioning sleeve 52, and the damping mechanism 60 is used for damping. At the same time, the transmission sensing component 70 is driven to send an electrical signal to start the electromagnet ring 521, so that the electromagnet ring 521 locks and reinforces the locking iron ring 511; during the mold closing process, the positioning rod 51 on the positioning seat is inserted into the positioning sleeve 52 on the movable mold seat 42, so that the precise positioning between the molds is realized. At the same time, by setting three groups of interrelated damping structures, the impact during mold closing is realized. The multi-level buffering of the impact force not only reduces the damage to the mold caused by the impact force during mold closing, but also improves the durability and stability of the mold. In the mold closing process, not only does the movable mold base 42 and the fixed mold base 41 generate a strong self-locking force at the moment of contact, but it also effectively prevents the expansion force generated by the high-pressure injection of the molten metal from causing the mold gap to increase, thereby improving the locking stability of the mold and the die-casting precision of the die-casting parts, ensuring the high-quality production of the inverter housing, effectively avoiding overflow and burrs on the die-casting parts, and further improving product quality and production efficiency.

[0066] See also Figures 1 to 3The mold clamping assembly 30 includes a fixed base 31 and a fixed base 32 fixedly assembled on the machine base 10, and the fixed base 32 is located on the right side of the fixed base 31. A material injection port 321 is arranged on the right side of the fixed base 32. A movable base 33 is arranged between the fixed base 31 and the fixed base 32. A guide slide bar 34 is fixedly assembled between the fixed base 31 and the fixed base 32, and the movable base 33 is slidably mounted on the guide slide bar 34. A hydraulic cylinder 35 is fixedly assembled on the left side of the fixed base 31. One side of the hydraulic cylinder 35 uses a piston rod to pass through the fixed base 31. The fixed base 31 is fixedly connected to the movable base 33; wherein, the fixed mold base 41 is fixedly assembled on the fixed base 32, and the movable mold base 42 is fixedly assembled on the movable base 33; the start of the hydraulic cylinder 35 is controlled by the background program, and the hydraulic cylinder 35 immediately generates kinetic energy and drives the piston rod to move, and the piston rod pushes the movable base 33 to slide on the guide slide rod 34 and move toward the fixed base 32. During this process, the movable mold base 42 and the fixed mold base 41 gradually approach and finally combine tightly under the strong thrust of the hydraulic cylinder 35 to form a mold closing state.

[0067] See also Figures 8 to 10 The damping mechanism 60 includes a first damping component 61, a second damping component 62, a third damping component 63 and a transmission component 64; a plurality of chambers are provided on the inner wall of the positioning sleeve 52, and the first damping component 61, the second damping component 62, the third damping component 63 and the transmission component 64 are respectively arranged in different chambers of the inner wall of the positioning sleeve 52; by setting three groups of interrelated damping structures, multi-level buffering of the impact force during mold closing is achieved, and the first damping component 61 is used to reduce the impact force while providing power for the start-up of the second damping component 62, and the second damping component 62 is used to further absorb the remaining impact force and create conditions for the start-up of the third damping component 63, and finally the third damping component 63 is used to completely absorb the remaining impact force. This setting not only reduces the damage to the mold caused by the impact force during mold closing, but also improves the durability and stability of the mold.

[0068] See also Figures 8 to 10 The first damping assembly 61 includes a first damping bag 611 arranged in the inner wall chamber of the positioning sleeve 52, and a plurality of first damping plates 612 arranged in a ring are arranged on the inner side of the first damping bag 611. A first damping block 613 is fixedly installed on the side of the first damping plate 612 away from the first damping bag 611, and a first damping spring 614 is fixedly connected between the first damping plate 612 and the chamber wall of the positioning sleeve 52; wherein, one side of the first damping block 613 is an inclined surface; the positioning rod 51 first contacts the first damping block 613, and prompts the first damping block 613 to drive the first damping plate 612 to squeeze the first damping bag 611. Since the first damping bag 611 is provided with damping liquid, the viscous resistance of the damping liquid can effectively reduce the impact force during mold closing, and can have a certain protective effect on the mold, thereby realizing the initial pressure attenuation.

[0069] See also Figures 8 to 10 The second damping assembly 62 includes a second damping capsule 621 arranged in the inner wall chamber of the positioning sleeve 52, a plurality of second damping plates 622 arranged in an annular shape are arranged inside the second damping capsule 621, a second damping block 623 is fixedly installed on the side of the second damping plate 622 away from the second damping capsule 621, a second damping spring 624 is fixedly connected between the second damping plate 622 and the chamber wall of the positioning sleeve 52, and a connecting pipe 1 625 is fixedly connected between the second damping capsule 621 and the first damping capsule 611; wherein, one side of the second damping block 623 is an inclined surface; after being squeezed, the damping fluid in the first damping capsule 611 will be transmitted to the second damping capsule 621 along the connecting pipe 1 625, causing it to begin to expand, and the expanded second damping capsule 621 further pushes the second damping plate 622 and the second damping block 623 to move, forming a new damping structure, thereby providing secondary buffering for the mold clamping pressure, further enhancing the damping effect, and ensuring stability and safety during mold clamping.

[0070] See also Figures 8 to 10 The third damping assembly 63 includes a third damping capsule 631 disposed in the inner wall chamber of the positioning sleeve 52, a plurality of third damping plates 632 arranged in an annular shape are disposed inside the third damping capsule 631, a third damping block 633 is fixedly installed on the side of the third damping plate 632 away from the third damping capsule 631, a third damping spring 634 is fixedly connected between the third damping plate 632 and the chamber wall of the positioning sleeve 52, and a connecting pipe 2 635 is fixedly connected between the third damping capsule 631 and the second damping capsule 621; wherein, the third damping block One side of 633 is an inclined surface; with the transfer of the damping liquid, the third damping bag 631 is also activated successively, driving the damping liquid in the second damping bag 621 to be further squeezed and then transferred to the third damping bag 631 along the connecting pipe 2 635, so that it also begins to expand. The expanded third damping bag 631 pushes the third damping plate 632 and the third damping block 633 to perform a third damping buffer on the mold closing pressure. This setting further reduces the impact force during mold closing, while also improving the durability and stability of the mold.

[0071] See also Figures 8 to 10 The transmission component 64 includes a transmission capsule 641 arranged in the inner wall chamber of the positioning sleeve 52, and a connecting pipe 642 is fixedly connected between the transmission capsule 641 and the third damping capsule 631; as the damping fluid is transferred, the damping fluid in the third damping capsule 631 is further squeezed into the transmission capsule 641, causing it to expand and drive the transmission sensing component 70.

[0072] See also Figures 8 to 9The transmission sensing component 70 includes a movable plate 71 disposed in the inner wall chamber of the positioning sleeve 52, the movable plate 71 is disposed on one side of the transmission capsule 641, a movable rod 72 is fixedly installed on the side of the movable plate 71 away from the transmission capsule 641, the other end of the movable rod 72 extends to the outside of the positioning sleeve 52, and a support spring 73 is sleeved on the outer periphery of the movable rod 72, and the support spring 73 is located between the movable plate 71 and the chamber wall of the positioning sleeve 52; the transmission sensing component 70 also includes a first sensing sheet fixedly mounted on the side wall of the movable plate 71 74, and a second induction sheet 75 fixedly assembled on the inner wall chamber of the positioning sleeve 52, the first induction sheet 74 and the second induction sheet 75 are electrically connected; the transmission bag 641 expands and pushes the movable plate 71 to move, so that the movable plate 71 drives the first induction sheet 74 to contact the second induction sheet 75 and then sends out an electrical signal, so that the electromagnet ring 521 is energized and generates magnetism, and the magnetic force of the electromagnet ring 521 is used to firmly adsorb the locking iron ring 511, thereby ensuring the clamping force between the movable mold base 42 and the fixed mold base 41.

[0073] See also Figure 6 to Figure 7 , Figure 11 to Figure 12 A chamber is provided inside the movable die seat 42, and a discharge assembly 80 is arranged in the chamber. The discharge assembly 80 includes a discharge plate 81, one side of the discharge plate 81 is fixedly connected to the movable rod 72, and a discharge ejector 82 for discharging the die-casting inverter housing is fixedly installed on the side of the discharge plate 81 facing the cavity of the movable die seat 42; after the die-casting is formed, the movable die seat 42 is separated from the fixed die seat 41, and when the discharge plate 81 is reset, the discharge ejector 82 thereon is inserted into the cavity of the movable die seat 42 to push out the formed die-casting. This process realizes the automatic discharge function of the die-casting, greatly improves the production efficiency and the degree of automation, and at the same time avoids the damage and defects caused by manual operation. In addition, the automatic discharge function also ensures the integrity and surface quality of the die-casting, which provides a strong guarantee for subsequent processing and use.

[0074] See also Figures 11 to 13 , a sealing assembly 90 is provided on the movable mold base 42, and the sealing assembly 90 and the discharge ejector pin 82 are installed by matching; the sealing assembly 90 includes a sealing shell 91 fixedly assembled on the movable mold base 42, and a plurality of sealing blocks 92 are provided inside the sealing shell 91, and a sealing spring 93 is fixedly connected between the sealing block 92 and the inner wall of the sealing shell 91, and one side of the sealing block 92 is provided with an inclined surface; during the mold closing process, the expansion of the transmission bag 641 also promotes the movement of the discharge plate 81 through the movable rod 72, so that the discharge plate 81 drives the discharge ejector pin 82 to leave the cavity of the movable mold base 42, and separates the discharge ejector pin 82 from the sealing block 92 on the sealing assembly 90, and the sealing blocks 92 are closed to each other based on the elastic force of the sealing spring 93 to form a closed cavity space, which provides favorable conditions for the molding of the die casting.

[0075] The specific usage and function of this embodiment are as follows:

[0076] Working principle: When in use, the staff controls the start of the hydraulic cylinder 35 through the background program, and the hydraulic cylinder 35 immediately generates kinetic energy and drives the piston rod to move. The piston rod pushes the movable seat 33 to slide on the guide slide rod 34 and move toward the fixed seat 32. In this process, the movable mold seat 42 and the fixed mold seat 41 gradually approach and finally combine tightly under the strong thrust of the hydraulic cylinder 35 to form a mold closing state;

[0077] In addition, during the mold closing process, as the movable mold base 42 and the fixed mold base 41 approach each other, the positioning rod 51 on the positioning base is gradually inserted into the positioning sleeve 52 on the movable mold base 42, thereby achieving accurate positioning between the molds. The accurate matching of the positioning rod 51 and the positioning sleeve 52 significantly improves the accuracy of the mold closing, laying a solid foundation for subsequent die-casting molding, and also ensuring the stability and consistency of the die-casting during the molding process.

[0078] In the process of mold closing, while the positioning rod 51 moves in the positioning sleeve 52, as the positioning rod 51 continues to move in the positioning sleeve 52, the positioning rod 51 is firstly contacted with the first damping block 613, and the first damping block 613 drives the first damping plate 612 to squeeze the first damping capsule 611. Since the first damping capsule 611 is provided with a damping liquid, the viscous resistance of the damping liquid can effectively reduce the impact force during mold closing, and can have a certain protective effect on the mold, thereby realizing the initial pressure attenuation. After being squeezed, the damping liquid in the first damping capsule 611 is transmitted to the second damping capsule 621 along the connecting pipe 1 625, causing it to begin to expand. The expanded second damping capsule 621 then pushes the second The damping plate 622 and the second damping block 623 move to form a new damping structure, so that the mold clamping pressure can be buffered for a second time, further enhancing the damping effect and ensuring the stability and safety during mold clamping. With the transmission of the damping liquid, the third damping capsule 631 is also activated successively, driving the damping liquid in the second damping capsule 621 to be further squeezed and then transmitted to the third damping capsule 631 along the second connecting pipe 635, so that it also begins to expand. The expanded third damping capsule 631 pushes the third damping plate 632 and the third damping block 633 to perform a third damping buffer on the mold clamping pressure. This arrangement further reduces the impact force during mold clamping and improves the durability and stability of the mold.

[0079] In the final stage of the mold closing process, when the positioning rod 51 moves to the bottom of the positioning sleeve 52, the electromagnet ring 521 and the locking iron ring 511 are in relative positions. At the same time, the damping liquid in the third damping capsule 631 is further squeezed into the transmission capsule 641, causing it to expand and push the movable plate 71 to move, prompting the movable plate 71 to drive the first induction sheet 74 to contact the second induction sheet 75 and then send out an electrical signal, so that the electromagnet ring 521 is energized and generates magnetism, and the magnetic force of the electromagnet ring 521 is used to firmly adsorb the locking iron ring 511, thereby ensuring the clamping force between the movable mold base 42 and the fixed mold base 41, and through this setting, it is During the mold closing process, not only does the movable mold base 42 and the fixed mold base 41 generate a strong self-locking force at the moment of contact, but it also effectively prevents the expansion force generated by the molten metal during high-pressure injection from causing the mold gap to increase, thereby improving the locking stability of the mold and the die-casting molding accuracy of the die-casting part, ensuring the high-quality production of the inverter housing. At the same time, this setting can quickly reach and maintain a higher clamping force level than that of a traditional die-casting machine during the mold closing stage, and by accurately controlling the mold closing speed and pressure, ensure that the mold remains stable and does not shake during high-pressure injection, effectively avoiding overflow and burrs on the die-casting part, and further improving product quality and production efficiency.

[0080] In addition, during the mold closing process, the expansion of the transmission bag 641 also pushes the movement of the stripper plate 81 through the movable rod 72, so that the stripper plate 81 drives the stripper ejector pin 82 to leave the cavity of the movable mold base 42, and separates the stripper ejector pin 82 from the sealing block 92 on the sealing assembly 90. Based on the elastic force of the sealing spring 93, the sealing blocks 92 are closed to each other to form a closed cavity space, which provides favorable conditions for the molding of the die casting. After the die casting is formed, the electromagnetic iron ring 521 is powered off through program control, and the hydraulic cylinder 35 is started again and drives the piston rod to move in the opposite direction, and the piston rod drives the movable iron ring 521 to move in the opposite direction. The movable seat 33 moves to separate the movable die seat 42 from the fixed die seat 41. At the same time, as the positioning rod 51 leaves the positioning sleeve 52, the movable plate 71 is pushed to reset based on the elastic force of the support spring 73. When the movable plate 71 is reset, the unloading plate 81 is driven to reset through the movable rod 72. When the unloading plate 81 is reset, the unloading ejector pin 82 thereon contacts the sealing block 92 and pushes it to separate. Subsequently, the unloading ejector pin 82 is inserted into the cavity of the movable die seat 42 to push out the formed die-casting. This process realizes the automatic unloading function of the die-casting, which greatly improves the production efficiency and the degree of automation.

[0081] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A die-casting machine for a micro inverter housing, comprising a base (10) and a housing (11) disposed on the base (10), characterized in that: It also includes a mold clamping assembly (30) arranged on the machine base (10), a mold assembly (40) arranged on the mold clamping assembly (30), and a die-casting mechanism (20) arranged on the right side of the mold clamping assembly (30); The mold assembly (40) comprises a fixed mold base (41) and a movable mold base (42); The mold assembly (40) is provided with a positioning locking assembly (50) for strengthening the clamping force of the fixed mold base (41) and the movable mold base (42). The positioning locking assembly (50) comprises a positioning rod (51) fixedly mounted on the fixed mold base (41) and a positioning sleeve (52) fixedly mounted on the movable mold base (42). When the fixed mold base (41) and the movable mold base (42) are closed, the positioning rod (51) and the positioning sleeve (52) are combined to apply the clamping force to the fixed mold base (41) and the movable mold base (42); The interior of the positioning sleeve (52) is provided with a damping mechanism (60) and a transmission sensing component (70); the inner wall of the positioning sleeve (52) is fixedly equipped with an electromagnet ring (521); the outer periphery of the positioning rod (51) is fixedly equipped with a locking iron ring (511); the positioning rod (51) is inserted into the positioning sleeve (52), and the damping mechanism (60) is used to perform damping while driving the transmission sensing component (70) to send an electrical signal to start the electromagnet ring (521), so that the electromagnet ring (521) locks and reinforces the locking iron ring (511); The damping mechanism (60) comprises a first damping component (61), a second damping component (62), a third damping component (63) and a transmission component (64); A plurality of chambers are provided on the inner wall of the positioning sleeve (52), and the first damping component (61), the second damping component (62), the third damping component (63) and the transmission component (64) are respectively arranged in different chambers on the inner wall of the positioning sleeve (52); The first damping assembly (61) comprises a first damping capsule (611) arranged in a cavity of an inner wall of the positioning sleeve (52); a plurality of first damping plates (612) arranged in an annular pattern are arranged inside the first damping capsule (611); a first damping block (613) is fixedly mounted on a side of the first damping plate (612) away from the first damping capsule (611); and a first damping spring (614) is fixedly connected between the first damping plate (612) and the cavity wall of the positioning sleeve (52); Wherein, one side of the first damping block (613) is an inclined surface.

2. The micro inverter housing die-casting machine according to claim 1, characterized in that: The clamping assembly (30) comprises a fixed base (31) and a fixed base (32) fixedly mounted on the machine base (10), wherein the fixed base (32) is located on the right side of the fixed base (31), a material injection port (321) is arranged on the right side of the fixed base (32), a movable base (33) is arranged between the fixed base (31) and the fixed base (32), a guide slide bar (34) is fixedly mounted between the fixed base (31) and the fixed base (32), and the movable base (33) is slidably mounted on the guide slide bar (34), a hydraulic cylinder (35) is fixedly mounted on the left side of the fixed base (31), and one side of the hydraulic cylinder (35) is fixedly connected to the movable base (33) by a piston rod passing through the fixed base (31); The fixed die seat (41) is fixedly assembled on the fixed seat (32), and the movable die seat (42) is fixedly assembled on the movable seat (33).

3. The die-casting machine for a micro inverter housing according to claim 1, characterized in that: The second damping assembly (62) comprises a second damping capsule (621) arranged in a cavity of an inner wall of the positioning sleeve (52); a plurality of second damping plates (622) arranged in an annular shape are arranged inside the second damping capsule (621); a second damping block (623) is fixedly mounted on a side of the second damping plate (622) away from the second damping capsule (621); a second damping spring (624) is fixedly connected between the second damping plate (622) and the cavity wall of the positioning sleeve (52); and a connecting pipe 1 (625) is fixedly connected between the second damping capsule (621) and the first damping capsule (611); Wherein, one side of the second damping block (623) is an inclined surface.

4. The die-casting machine for a micro inverter housing according to claim 3, characterized in that: The third damping assembly (63) comprises a third damping capsule (631) arranged in the inner wall chamber of the positioning sleeve (52); a plurality of third damping plates (632) arranged in an annular shape are arranged inside the third damping capsule (631); a third damping block (633) is fixedly mounted on a side of the third damping plate (632) away from the third damping capsule (631); a third damping spring (634) is fixedly connected between the third damping plate (632) and the chamber wall of the positioning sleeve (52); and a second connecting pipe (635) is fixedly connected between the third damping capsule (631) and the second damping capsule (621); Wherein, one side of the third damping block (633) is an inclined surface.

5. The die-casting machine for a micro inverter housing according to claim 4, characterized in that: The transmission assembly (64) comprises a transmission capsule (641) disposed in the inner wall chamber of the positioning sleeve (52), and a third connecting pipe (642) is fixedly connected between the transmission capsule (641) and the third damping capsule (631).

6. The die-casting machine for a micro inverter housing according to claim 5, characterized in that: The transmission sensing component (70) comprises a movable plate (71) arranged in a cavity of an inner wall of a positioning sleeve (52), the movable plate (71) being arranged on one side of a transmission capsule (641), a movable rod (72) being fixedly mounted on a side of the movable plate (71) away from the transmission capsule (641), the other end of the movable rod (72) extending to the outside of the positioning sleeve (52), a supporting spring (73) being arranged on the outer periphery of the movable rod (72), and the supporting spring (73) being located between the movable plate (71) and the cavity wall of the positioning sleeve (52); The transmission sensing assembly (70) further comprises a first sensing sheet (74) fixedly mounted on the side wall of the movable plate (71), and a second sensing sheet (75) fixedly mounted on the inner wall chamber of the positioning sleeve (52), wherein the first sensing sheet (74) and the second sensing sheet (75) are electrically connected.

7. The die-casting machine for a micro inverter housing according to claim 6, characterized in that: A chamber is provided inside the movable die seat (42), and a discharge assembly (80) is arranged in the chamber. The discharge assembly (80) comprises a discharge plate (81), one side of the discharge plate (81) is fixedly connected to the movable rod (72), and a discharge ejector pin (82) for discharging a die-cast inverter housing is fixedly installed on the side of the discharge plate (81) facing the cavity of the movable die seat (42).

8. The die-casting machine for a micro inverter housing according to claim 7, characterized in that: A sealing assembly (90) is provided on the movable mold base (42), and the sealing assembly (90) is mounted by matching with the discharge ejector pin (82); The sealing assembly (90) comprises a sealing shell (91) fixedly mounted on a movable mold base (42); a plurality of sealing blocks (92) are arranged inside the sealing shell (91); a sealing spring (93) is fixedly connected between the sealing blocks (92) and the inner wall of the sealing shell (91); and one side of the sealing block (92) is provided with an inclined surface.

9. The die-casting machine for a micro inverter housing according to claim 1, characterized in that: The fixed die seat (41) and the movable die seat (42) are provided with cavities for die-casting the inverter housing. The fixed die seat (41) and the movable die seat (42) are driven to contact and close the molds by the die-casting assembly (30), and then the alloy metal liquid is injected into the cavity between the fixed die seat (41) and the movable die seat (42) by the die-casting mechanism (20) for die-casting.

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