Die for manufacturing aluminum shell

Abstract

The mold for manufacturing the aluminum machine shell comprises a lower mold body and a machining table, three sets of outer jacking blocks are slidably connected to the inner side of the lower mold body, inner jacking blocks are slidably connected to the interiors of the lower sides of the outer jacking blocks, and inner connecting plates are fixedly connected between the outer sides of the inner jacking blocks; the lower portion of the inner connecting plate is fixedly connected with four sets of guide rods, the lower portions of the guide rods penetrate through the lower die to be fixedly connected with fixing pieces, the outer sides of the guide rods are slidably connected with outer connecting plates, springs are fixedly connected between the fixing pieces and the outer connecting plates, the guide rods are sleeved with the springs, and the middle of the machining table is of a communicating structure. And the lower portion of the machining table is fixedly connected with a mounting frame, the lower portion of the mounting frame is fixedly connected with a hydraulic cylinder, and the output end of the hydraulic cylinder penetrates through the mounting frame to be fixedly connected with an outer connecting plate, so that the demolding impact force is controlled within a small range, surface damage of the aluminum shell is avoided, and the product quality is improved.

Description

Technical Field

[0001] This invention relates to the field of aluminum housing processing mold technology, specifically a mold for manufacturing aluminum housings. Background Technology

[0002] In the die-casting manufacturing process of aluminum housings (such as the housings of home appliances and industrial equipment), demolding is a key subsequent process. After the molten aluminum cools and solidifies in the mold, the aluminum housing needs to be removed from the lower mold by external force before it can enter the next processing stage.

[0003] Existing demolding molds generally suffer from the following technical defects, hindering production efficiency and product quality: Uncontrollable demolding force: Traditional molds often rely on hydraulic cylinders to directly provide demolding power, lacking a buffer structure. When the thrust is too large, it easily crushes the aluminum housing surface, causing damage such as dents and scratches. Poor adaptability: The length of demolding components (such as lifting blocks) is fixed, only suitable for aluminum housings of a single height. When dealing with products of different specifications, the lifting blocks need to be disassembled and replaced, resulting in excessively long replacement times and severely impacting production line rhythm. Summary of the Invention

[0004] The purpose of this invention is to provide a mold for manufacturing aluminum housings, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a mold for manufacturing aluminum housings, comprising a lower mold and a processing table. Three sets of external lifting blocks are slidably connected to the inner side of the lower mold. An inner lifting block is slidably connected to the lower side of each external lifting block. An inner connecting plate is fixedly connected between the outer sides of each inner lifting block. Four sets of guide rods are fixedly connected to the lower part of the inner connecting plate. A fixing plate is fixedly connected to the lower part of each guide rod through the lower mold. An outer connecting plate is slidably connected to the outer side of each guide rod. A spring is fixedly connected between the fixing plate and the outer connecting plate, and the spring is sleeved on the outer side of the guide rod. The processing table has a through-type structure in the middle. A mounting frame is fixedly connected to the lower part of the processing table. A hydraulic cylinder is fixedly connected to the lower part of the mounting frame. The output end of the hydraulic cylinder penetrates the mounting frame and is fixedly connected to the outer connecting plate.

[0006] Preferably, the lower mold has two sets of positioning grooves on its inner side, and a positioning plate is fixedly connected between the upper parts of two adjacent sets of outer lifting blocks, and the positioning plate is sleeved inside the positioning groove.

[0007] Preferably, a lifting rod is fixedly connected to the upper inner side of the outer lifting blocks on both sides, and a mounting plate is fixedly connected to the lower part of the lifting rod through the inner lifting block. A threaded rod is rotatably connected to the middle part of the mounting plate. The threaded rod is threadedly connected to the upper inner side of the middle inner lifting block, and the tail of the threaded rod is rotatably connected to the upper inner side of the outer lifting block.

[0008] Preferably, the lower part of the lower mold has a connecting hole facing the threaded rod.

[0009] Preferably, the lower mold has several sets of ventilation grooves on its outer side.

[0010] Preferably, a fixing plate is fixedly connected to both sides of the upper part of the processing table, and a mounting screw is threaded inside the fixing plate. Mounting holes for matching mounting screws are opened on both sides of the lower mold.

[0011] Preferably, a support plate is fixedly connected to the middle of the inner side of the processing table.

[0012] Compared with the prior art, the beneficial effects of the present invention are: 1. This invention uses the output end of a hydraulic cylinder to push an outer connecting plate to slide upward along a guide rod. The outer connecting plate compresses a spring, and the spring compression generates a buffering force, which avoids a sudden increase in thrust and controls the demolding impact force within a small range, thus preventing damage to the aluminum housing surface and improving product quality. 2. The present invention also utilizes clockwise rotation of the threaded rod: Since the threaded rod is threadedly connected to the inner lifting block on the middle side, and the inner lifting block is restricted from rotating by the lifting rod, the inner lifting block will move upward along the threaded rod, causing the inner connecting plate and the guide rod to rise synchronously. The total length of the outer lifting block and the inner lifting block increases, adapting to aluminum housings of different heights. No parts need to be replaced, the specification switching time is shortened, and work efficiency is improved. Attached Figure Description

[0013] Figure 1 This is a perspective view of the three-dimensional structure of the present invention; Figure 2 This is a three-dimensional cross-sectional view of the present invention; Figure 3 This is a three-dimensional cross-sectional view of the present invention.

[0014] In the diagram: 1. Lower mold; 2. Outer lifting block; 3. Inner lifting block; 4. Inner connecting plate; 5. Guide rod; 6. Fixing plate; 7. Spring; 8. Outer connecting plate; 9. Machining table; 10. Mounting frame; 11. Hydraulic cylinder; 12. Positioning groove; 13. Positioning plate; 14. Lifting rod; 15. Mounting plate; 16. Threaded rod; 17. Connecting hole; 18. Vent groove; 19. Fixing plate; 20. Mounting screw; 21. Mounting hole; 22. Support plate. Detailed Implementation

[0015] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0016] Please see Figure 1-3 This invention provides a technical solution: a mold for manufacturing aluminum housings, including a lower mold 1 and a processing table 9. Three sets of outer lifting blocks 2 are slidably connected to the inner side of the lower mold 1. The outer lifting blocks 2 directly contact the bottom of the aluminum housing, providing demolding support. An inner lifting block 3 is slidably connected to the lower side of the outer lifting blocks 2. An inner connecting plate 4 is welded and fixed between the outer sides of the inner lifting blocks 3. Four sets of guide rods 5 are bolted to the lower part of the inner connecting plate 4. The guide rods 5 ensure the stability of the lifting trajectory of the inner connecting plate 4. After penetrating the lower mold 1, the lower part of the guide rod 5 is fixed with a fixing piece 6 by welding. An outer connecting plate 8 is slidably connected to the outside of the rod 5. A fixing plate 6 prevents the guide rod 5 from falling off the outer connecting plate 8. A spring 7 abuts between the fixing plate 6 and the outer connecting plate 8. The abutment allows the spring 7 to extend and retract freely, playing a buffering role. The spring 7 is sleeved on the outside of the guide rod 5. The guide rod 5 restricts the deformation direction of the spring 7 and prevents the spring 7 from deviating. The middle part of the processing table 9 is a connected structure. The lower part is fixedly connected to the mounting bracket 10 by bolts. The lower part of the mounting bracket 10 is fixedly connected to the hydraulic cylinder 11 by flange bolts. The output end of the hydraulic cylinder 11 penetrates the mounting bracket 10 and is fixedly connected to the outer connecting plate 8 by bolts. Two sets of positioning grooves 12 are provided on the inner side of the lower mold 1. A positioning plate 13 is welded between the upper parts of two adjacent sets of outer lifting blocks 2. The positioning plate 13 is fitted inside the positioning groove 12 to prevent the outer lifting blocks 2 from falling into the lower mold 1 and to ensure that the inner side of the lower mold 1 is flat. Lifting rods 14 are welded to the upper inner side of the outer lifting blocks 2 on both sides. The lower part of the lifting rods 14 penetrates the inner lifting blocks 3 and is fixed to the mounting plate 15 by welding. The middle part of the mounting plate 15 is rotatably connected to a threaded rod 16 through a bearing. The threaded rod 16 is threaded to the upper interior of the middle inner lifting block 3. The tail of the threaded rod 16 is rotatably connected to the upper inner side of the outer lifting block 2 through a bearing. The threaded drive realizes the lifting and lowering of the inner lifting block 3 relative to the outer lifting block 2, thereby adjusting the total length. The lower mold 1 has a connecting hole 17 at the bottom that faces the threaded rod 16. The connecting hole 17 makes it easy to insert a tool to rotate the threaded rod 16, and the adjustment can be made without disassembling the mold. Several sets of ventilation grooves 18 are provided on the outer side of the lower mold 1. The ventilation grooves 18 balance the air pressure inside and outside the mold, eliminate the negative pressure formed after die casting, and reduce the demolding resistance. The upper two sides of the processing table 9 are fixed with a fixing plate 19 by welding. The fixing plate 19 is threaded with a mounting screw 20. The lower mold 1 has mounting holes 21 on both sides to match the mounting screw 20. A support plate 22 is welded to the middle of the inner side of the processing table 9. The support plate 22 directly supports the bottom of the lower mold 1, disperses the demolding pressure, and prevents the processing table 9 from deforming.

[0017] Working principle: When using this invention, the lower mold 1 is placed on the support plate 22 of the processing table 9, so that the mounting holes 21 on both sides of the lower mold 1 are aligned with the fixing plate 19 of the processing table 9. The mounting screw 20 is rotated so that it passes through the threaded hole of the fixing plate 19 and is screwed into the mounting hole 21 until the lower mold 1 is tightly fixed and there is no looseness. Confirm the height of the aluminum housing to be demolded, prepare tools such as an Allen wrench, insert the tools through the connecting hole 17 at the bottom of the lower mold 1, and clamp the tail of the threaded rod 16. Rotate the threaded rod 16 clockwise: Since the threaded rod 16 is threadedly connected to the inner lifting block 3 on the middle side, and the inner lifting block 3 is restricted from rotating by the lifting rod 14, the inner lifting block 3 will move upward along the threaded rod 16, causing the inner connecting plate 4 and the guide rod 5 to rise synchronously, and the total length of the outer lifting block 2 and the inner lifting block 3 will increase. Rotating counterclockwise will shorten the total length. Adjust until the total length of the inner and outer lifting blocks 2 is 5-10mm shorter than the height of the aluminum housing. After the molten aluminum cools and solidifies in the lower mold 1, the hydraulic cylinder 11 is activated, controlling its output end to extend upward. The output end of the hydraulic cylinder 11 pushes the outer connecting plate 8 to slide upward along the guide rod 5. The outer connecting plate 8 squeezes the spring 7, and the spring 7 compresses to generate a buffer force to avoid a sudden increase in thrust. The spring 7 transmits the force to the fixing plate 6, and the fixing plate 6 drives the guide rod 5 and the inner connecting plate 4 to move upward. The inner connecting plate synchronously drives the three sets of inner lifting blocks 3 to slide upward. The inner lifting blocks 3 push the outer lifting blocks 2 to slide along the inner side of the lower mold 1. The upper part of the outer lifting blocks 2 contacts the bottom of the aluminum housing and pushes the aluminum housing upward. When the aluminum housing is completely detached, the hydraulic cylinder 11 is closed.

[0018] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0019] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A mold for manufacturing aluminum housings, comprising a lower mold (1) and a processing table (9), characterized in that: The lower mold (1) is slidably connected to three sets of outer lifting blocks (2), and the lower side of the outer lifting blocks (2) is slidably connected to an inner lifting block (3). The inner lifting blocks (3) are fixedly connected to an inner connecting plate (4) on their outer sides. The lower part of the inner connecting plate (4) is fixedly connected to four sets of guide rods (5). The lower part of the guide rods (5) penetrates the lower mold (1) and is fixedly connected to a fixing piece (6). The outer side of the guide rods (5) is slidably connected to an outer connecting plate (8). The fixing piece (6) and the outer connecting plate (8) are fixedly connected to a spring (7). The spring (7) is sleeved on the outer side of the guide rods (5). The middle part of the processing table (9) is a connected structure. The lower part of the processing table (9) is fixedly connected to a mounting frame (10). The lower part of the mounting frame (10) is fixedly connected to a hydraulic cylinder (11). The output end of the hydraulic cylinder (11) penetrates the mounting frame (10) and is fixedly connected to the outer connecting plate (8).

2. The mold for manufacturing aluminum housings according to claim 1, characterized in that: The lower mold (1) has two sets of positioning grooves (12) on its inner side. A positioning plate (13) is fixedly connected between the upper parts of the two adjacent sets of outer lifting blocks (2). The positioning plate (13) is sleeved inside the positioning groove (12).

3. The mold for manufacturing aluminum housings according to claim 1, characterized in that: A lifting rod (14) is fixedly connected to the upper inner side of the outer lifting block (2) on both sides. The lower part of the lifting rod (14) penetrates the inner lifting block (3) and is fixedly connected to the mounting plate (15). A threaded rod (16) is rotatably connected to the middle part of the mounting plate (15). The threaded rod (16) is threadedly connected to the upper inner side of the middle inner lifting block (3). The tail of the threaded rod (16) is rotatably connected to the upper inner side of the outer lifting block (2).

4. A mold for manufacturing aluminum housings according to claim 3, characterized in that: The lower mold (1) has a connecting hole (17) at its lower part that faces the threaded rod (16).

5. A mold for manufacturing aluminum housings according to claim 1, characterized in that: The lower mold (1) has several sets of ventilation grooves (18) on its outer side.

6. A mold for manufacturing aluminum housings according to claim 1, characterized in that: The upper two sides of the processing table (9) are fixedly connected to a fixing plate (19), and the fixing plate (19) is threaded with a mounting screw (20). The lower mold (1) has mounting holes (21) on both sides to match the mounting screw (20).

7. A mold for manufacturing aluminum housings according to claim 1, characterized in that: A support plate (22) is fixedly connected to the middle of the inner side of the processing table (9).

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