Integrated forming die for light-weight aluminum alloy of triangular rotor of rotor engine

Abstract

The invention relates to the technical field of forming dies, in particular to a rotor engine triangular rotor light-weight aluminum alloy integrated forming die which comprises an upper die base and a lower die base, a lifting assembly is arranged between the upper die base and the lower die base, a containing groove is formed in the upper surface of the lower die base, and a containing groove is formed in the groove wall of the lower end of the containing groove. A placement groove is formed in the upper surface of the mold core, a mold core is placed in the placement groove, a forming groove is formed in the upper surface of the mold core, an annular groove is formed in the forming groove, a fixing hole is formed in the groove wall of the lower end of the annular groove in a penetrating mode, an annular block is placed in the annular groove, and a fixing rod is fixedly connected to the lower surface of the annular block; the double-fixed mold core and the annular block are connected through elastic positioning, so that the stability of the groove bottom is guaranteed, and the shape is accurately controlled to avoid deformation; the mold core is synchronously jacked in a lifting linkage manner of the mold base, a casting is jacked out, and the whole process is simplified; part taking is convenient through pulling and unlocking, whole mold taking does not need to disassemble the main body, rapid mold changing is achieved, and the production efficiency, the casting quality and universality are improved.

Description

Technical Field

[0001] This invention relates to the field of molding die technology, specifically to a lightweight aluminum alloy integrated molding die for a rotary engine triangular rotor. Background Technology

[0002] In the process of lightweight aluminum alloy integrated molding of the triangular rotor of a rotary engine, the positioning stability, demolding efficiency and versatility of the mold directly affect the casting quality and production efficiency.

[0003] The ejection structure of the mold core lacks a relatively fixed structure, making it prone to fluctuations during operation and causing deformation of the triangular rotor during molding. Secondly, the demolding mechanism is mostly set independently, requiring steps to complete the mold core positioning release and casting ejection. The "mold closing-molding-demolding-resetting" process is not well connected, the operation steps are cumbersome, the single molding cycle is long, and the production efficiency is low. Thirdly, the mold structure needs to be disassembled when removing the part, which not only limits the removal space but also easily causes collision damage to the key features of the casting. Furthermore, the mold core replacement requires disassembling the main mold body, which is complicated and time-consuming, making it difficult to adapt to the batch production needs of triangular rotors of various specifications. The mold reuse rate and application scope are limited. Therefore, it is necessary to propose a lightweight aluminum alloy integrated molding mold for triangular rotors of rotor engines. Summary of the Invention

[0004] To address the problems in the prior art, this invention provides a lightweight aluminum alloy integrated molding die for a rotary engine triangular rotor.

[0005] The technical solution adopted by this invention to solve its technical problem is: a lightweight aluminum alloy integrated molding die for a triangular rotor of a rotary engine, including an upper die base and a lower die base, with a lifting assembly provided between the upper die base and the lower die base. A placement groove is formed on the upper surface of the lower die base, and a receiving groove is formed on the lower end wall of the placement groove. A die core is placed in the placement groove, and a forming groove is formed on the upper surface of the die core. An annular groove is formed in the forming groove, and a fixing hole is formed through the lower end wall of the annular groove. An annular block is placed in the annular groove. A fixing rod is fixedly connected to the lower surface. The lower end of the fixing rod extends through the storage groove and is fixedly connected to a fixing plate. A through hole is opened through the mold core. A pressing rod is installed on the lower surface of the upper mold base. The lower end of the pressing rod extends through the through hole into the storage groove and abuts against the fixing plate. A positioning groove is opened on the pressing rod. A fixing block is fixedly installed on the fixing plate. A positioning hole is opened through the fixing block. An elastic component is provided in the positioning hole, and a positioning rod is fixedly installed through the elastic component. The positioning rod is inserted into the positioning groove.

[0006] Specifically, the lifting assembly includes a mounting groove, which is formed on the upper surface of the lower mold base. A drive cylinder is fixedly installed in the mounting groove, and a piston rod is movably connected to the output end of the drive cylinder. The upper end of the piston rod is fixedly connected to the lower surface of the upper mold base.

[0007] Specifically, the elastic component includes a movable groove, which is formed on the wall of the positioning hole. A fixed ring is slidably connected in the movable groove. The fixed ring is fixedly sleeved on the wall of the positioning rod. A spring is sleeved on the positioning rod, and the two ends of the spring abut against the fixed ring and the groove wall of the movable groove, respectively.

[0008] Specifically, the positioning rod is slidably connected in the positioning hole, one end of the positioning rod extends through to the outside of the fixing block, and a pull handle is fixedly installed at the end of the positioning rod outside the fixing block.

[0009] Specifically, a connecting pipe is fixedly installed on the upper mold base, and the lower end of the connecting pipe penetrates the lower surface of the upper mold base.

[0010] Specifically, the lower end of the connecting pipe is opposite to the forming groove on the mold core.

[0011] Specifically, a threaded groove is provided at the center of the lower surface of the upper mold base, and the upper end of the lower pressure rod is threaded, and the upper end of the lower pressure rod is threadedly connected to the threaded groove.

[0012] Specifically, the fixing rod is slidably connected in the fixing hole, and the annular groove matches the annular block.

[0013] The beneficial effects of this invention are as follows: The lightweight aluminum alloy integrated molding die for the triangular rotor of the rotary engine described in this invention achieves double pressing and fixing of the mold core and the annular block through elastic positioning connection, ensuring the stability of the bottom of the tank throughout the aluminum alloy liquid forming process, accurately controlling the key feature dimensions and geometric tolerances of the triangular rotor, and avoiding casting deformation; relying on the upper mold base lifting drive linkage mechanism, the mold core lifting and casting ejection are completed simultaneously, simplifying the "mold closing-forming-demolding-resetting" process and shortening the forming cycle; the locking can be quickly released by pulling the handle, facilitating easy part removal and reset while avoiding bumps, and the mold core can be removed as a whole without disassembling the main body, realizing rapid mold change of multiple specifications, improving production efficiency, casting quality and mold versatility. Attached Figure Description

[0014] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0015] Figure 1 A schematic diagram of the external structure of the lightweight aluminum alloy integrated molding die for a triangular rotor of a rotary engine provided by the present invention in its working state. Figure 2A schematic diagram of the external structure of the integrated lightweight aluminum alloy molding die for the triangular rotor of the rotary engine provided by the present invention in the open state. Figure 3 A schematic diagram of the assembly structure of the mold core of the lightweight aluminum alloy integrated molding mold for the triangular rotor of the rotary engine provided by the present invention. Figure 4 A schematic diagram of the mounting structure of the fixing plate of the lightweight aluminum alloy integrated molding die for the triangular rotor of the rotary engine provided by the present invention. Figure 5 A schematic diagram of the mold core of the lightweight aluminum alloy integrated molding die for the triangular rotor of the rotary engine provided by the present invention; Figure 6 A schematic diagram of the external structure of the upper and lower mold bases of the integrated mold for lightweight aluminum alloy forming of a triangular rotor for a rotary engine provided by the present invention. Figure 7 A schematic diagram of the lower pressure rod of the lightweight aluminum alloy integrated molding die for the triangular rotor of the rotary engine provided by the present invention; Figure 8 An internal cross-sectional view of the fixing block of the lightweight aluminum alloy integrated molding die for a triangular rotor of a rotary engine provided by the present invention.

[0016] In the diagram: 1. Upper mold base; 2. Lower mold base; 3. Placement slot; 4. Storage slot; 5. Mold core; 6. Forming slot; 7. Annular slot; 8. Fixing hole; 9. Annular block; 10. Fixing rod; 11. Fixing plate; 12. Through hole; 13. Lower pressure rod; 14. Positioning slot; 15. Fixing block; 16. Positioning hole; 17. Positioning rod; 18. Mounting slot; 19. Drive cylinder; 20. Piston rod; 21. Moving slot; 22. Fixing ring; 23. Spring; 24. Pull-out handle; 25. Connecting pipe; 26. Threaded groove. Detailed Implementation

[0017] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0018] like Figures 1-8 As shown, the present invention provides the following technical solution: Example 1: A lightweight integrated aluminum alloy molding die for a triangular rotor of a rotary engine, comprising an upper die base 1 and a lower die base 2, with a lifting assembly between them. The upper surface of the lower die base 2 has a placement groove 3, and the lower end wall of the placement groove 3 has a receiving groove 4. A die core 5 is placed inside the placement groove 3. The upper surface of the die core 5 has a forming groove 6, and the forming groove 6 has an annular groove 7. A fixing hole 8 is formed through the lower end wall of the annular groove 7. An annular block 9 is placed inside the annular groove 7, and a fixing rod 10 is fixedly connected to the lower surface of the annular block 9. The lower end of rod 10 extends through into the storage groove 4 and is fixedly connected to a fixing plate 11. A through hole 12 is provided through the mold core 5. A pressing rod 13 is installed on the lower surface of the upper mold base 1. The lower end of the pressing rod 13 extends through the through hole 12 into the storage groove 4 and abuts against the fixing plate 11. A positioning groove 14 is provided on the pressing rod 13. A fixing block 15 is fixedly installed on the fixing plate 11. A positioning hole 16 is provided through the fixing block 15. An elastic component is provided in the positioning hole 16, and a positioning rod 17 is fixedly installed through the elastic component. The positioning rod 17 is inserted into the positioning groove 14. When using it, the following steps are included: Step 1: First, place the mold core 5 in the placement groove 3, and the fixing plate 11 will descend into the receiving groove 4. The upper surface of the mold core 5 is flush with the upper surface of the lower mold base 2. Then, start the drive cylinder 19. The drive cylinder 19 drives the piston rod 20 to descend, and the piston rod 20 drives the upper mold base 1 to descend. The upper mold base 1 abuts against the upper surface of the lower mold base 2 and the mold core 5. The pressing rod 13 on the upper mold base 1 passes through the through hole 12 and descends to abut against the fixing plate 11 and presses down. The fixing plate 11 pulls the annular block 9 through the fixing rod 10, so that the annular block 9 is fixed in the annular groove 7, so that the bottom of the forming groove 6 remains stable and will not fluctuate during use, affecting the processing quality. The second step is that the lowering rod 13 abuts against the fixed plate 11, and the positioning groove 14 on the lowering rod 13 coincides with the positioning hole 16. At this time, the spring 23 pushes the fixed ring 22 under the support of the moving groove 21, and the fixed ring 22 drives the positioning rod 17 to move outward and insert into the positioning groove 14, thereby connecting the fixed plate 11 and the lowering rod 13. The third step is to connect to the external pipe through the connecting pipe 25. Then, the internal air can be extracted through the connecting pipe 25, and then lightweight aluminum alloy liquid is injected into the forming groove 6 in the mold core 5 until the lightweight aluminum alloy liquid cools and forms in the forming groove 6. Fourth step: Restart the drive cylinder 19. The drive cylinder 19 drives the piston rod 20 to rise, and the piston rod 20 drives the upper mold base 1 to rise. The upper mold base 1 drives the lower pressure rod 13 to rise, and the lower pressure rod 13 drives the fixed plate 11 to rise through the connection. The fixed plate 11 drives the fixed block 15 to rise. The fixed block 15 will abut against the mold core 5 and lift the mold core 5 outside the placement groove 3. During the process of the fixed block 15 and the fixed plate 13 rising, the fixed plate 13 will drive the annular block 9 to rise through the fixed rod 10. The annular block 9 will lift the formed triangular rotor outside the forming groove 6. Step 5: When only the triangular rotor needs to be removed, the triangular rotor can be held and the positioning rod 17 can be pulled by the pull handle 24 to disengage the positioning rod 17 from the positioning groove 14. The pressing rod 13 releases the support of the fixing plate 11 and the mold core 5. Then, the fixing plate 11 and the mold core 5 can be held and lowered into the placement groove 3 and the storage groove 4 to reset the equipment for reuse. The pressing rod 13 will disengage from the through hole 12 and funnel a certain space, so that the triangular rotor can be taken out from there. Step 6: When it is necessary to replace the mold core 5, the positioning rod 17 can be rotated by the fixing block 15. The positioning rod 17 drives the lower pressure rod 13 to rotate by engaging with the positioning groove 14, thereby disengaging the positioning rod 13 from the threaded connection with the threaded groove 26. At this time, the lower pressure rod 13, the fixing plate 11 and the mold core 5 can be removed as a whole, and the triangular rotor can be removed. Then, the fourth step can be repeated to disconnect the lower pressure rod 13 from the fixing plate 11. At this time, the mold core 5 can be replaced.

[0019] Example 2: The technical solutions in this example that differ from Example 1 include: The lifting assembly includes a mounting groove 18, which is formed on the upper surface of the lower mold base 2. A drive cylinder 19 is fixedly installed in the mounting groove 18. A piston rod 20 is movably connected to the output end of the drive cylinder 19. The upper end of the piston rod 20 is fixedly connected to the lower surface of the upper mold base 1. When the drive cylinder 19 is activated, it drives the piston rod 20 to rise and fall, and the piston rod 20 drives the upper mold base 1 to rise and fall. The elastic component includes a moving groove 21, which is formed on the wall of the positioning hole 16. A fixing ring 22 is slidably connected within the movable groove 21. The fixing ring 22 is fixedly sleeved on the wall of the positioning rod 17. A spring 23 is sleeved on the positioning rod 17, with both ends of the spring 23 abutting against the fixing ring 22 and the groove wall of the movable groove 21, respectively. The positioning rod 17 is slidably connected within the positioning hole 16, with one end of the positioning rod 17 extending through to the outside of the fixing block 15. A pull handle 24 is fixedly installed at the end of the positioning rod 17 outside the fixing block 15. The spring 23 pushes the fixing ring 22, and the fixing ring 22 pushes... The movable positioning rod 17 is held within the positioning groove 14, thus ensuring the connection between the fixed block 15 and the lower pressure rod 13. The positioning rod 17 can be pulled away from the positioning groove 14 by the pull handle 24, thereby releasing the connection between the fixed block 15 and the lower pressure rod 13. A connecting pipe 25 is fixedly installed on the upper mold base 1. The lower end of the connecting pipe 25 penetrates the lower surface of the upper mold base 1, and the lower end of the connecting pipe 25 is aligned with the forming groove 6 on the mold core 5. The connecting pipe 25 is connected to an external pipe, and then... The air inside is extracted through the connecting pipe 25, and then lightweight aluminum alloy liquid is injected into the forming groove 6 in the mold core 5. A threaded groove 26 is provided at the center of the lower surface of the upper mold base 1. The upper end of the lower pressure rod 13 is threaded and the upper end of the lower pressure rod 13 is threaded to the threaded groove 26, so that the lower pressure rod 13 can be removed. The fixing rod 10 is slidably connected in the fixing hole 8. The annular groove 7 matches the annular block 9. When the annular block 9 is fixed in the annular groove 7, the bottom of the forming groove 6 remains stable.

[0020] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of protection claimed by the present invention. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A lightweight aluminum alloy integrated molding die for a triangular rotor of a rotary engine, comprising an upper die base (1) and a lower die base (2), wherein a lifting assembly is provided between the upper die base (1) and the lower die base (2), characterized in that, The upper surface of the lower mold base (2) is provided with a placement groove (3), and the lower end of the placement groove (3) is provided with a storage groove (4). A mold core (5) is placed in the placement groove (3). A forming groove (6) is provided on the upper surface of the mold core (5). An annular groove (7) is provided in the forming groove (6). A fixing hole (8) is provided through the lower end of the annular groove (7). An annular block (9) is placed in the annular groove (7). A fixing rod (10) is fixedly connected to the lower surface of the annular block (9). The lower end of the fixing rod (10) extends through into the storage groove (4) and is fixedly connected to a fixing plate (11). The mold core (5) has a through hole (12) through it. The lower surface of the upper mold base (1) is equipped with a pressure rod (13). The lower end of the pressure rod (13) passes through the through hole (12) and extends into the storage groove (4), and abuts against the fixing plate (11). The pressure rod (13) has a positioning groove (14). The fixing plate (11) has a fixing block (15) fixedly installed on it. The fixing block (15) has a positioning hole (16) through it. The positioning hole (16) is provided with an elastic component, and a positioning rod (17) is fixedly installed through the elastic component. The positioning rod (17) is inserted into the positioning groove (14).

2. The lightweight aluminum alloy integrated forming mold for a triangular rotor of a rotary engine according to claim 1, characterized in that: The lifting assembly includes a mounting groove (18), which is opened on the upper surface of the lower mold base (2). A drive cylinder (19) is fixedly installed in the mounting groove (18). A piston rod (20) is movably connected to the output end of the drive cylinder (19). The upper end of the piston rod (20) is fixedly connected to the lower surface of the upper mold base (1).

3. The lightweight aluminum alloy integrated forming mold for a triangular rotor of a rotary engine according to claim 1, characterized in that: The elastic component includes a movable groove (21), which is formed on the wall of the positioning hole (16). A fixed ring (22) is slidably connected inside the movable groove (21). The fixed ring (22) is fixedly sleeved on the wall of the positioning rod (17). A spring (23) is sleeved on the positioning rod (17). The two ends of the spring (23) abut against the fixed ring (22) and the groove wall of the movable groove (21), respectively.

4. The lightweight aluminum alloy integrated forming mold for the triangular rotor of a rotary engine according to claim 1, characterized in that: The positioning rod (17) is slidably connected in the positioning hole (16), one end of the positioning rod (17) extends through to the outside of the fixing block (15), and a pull handle (24) is fixedly installed on the end of the positioning rod (17) outside the fixing block (15).

5. The lightweight aluminum alloy integrated forming mold for a triangular rotor of a rotary engine according to claim 1, characterized in that: A connecting pipe (25) is fixedly installed on the upper mold base (1), and the lower end of the connecting pipe (25) penetrates the lower surface of the upper mold base (1).

6. The lightweight aluminum alloy integrated forming mold for a triangular rotor of a rotary engine according to claim 5, characterized in that: The lower end of the connecting pipe (25) is opposite to the groove (6) on the mold core (5).

7. The lightweight aluminum alloy integrated forming mold for a triangular rotor of a rotary engine according to claim 1, characterized in that: A threaded groove (26) is provided at the center of the lower surface of the upper mold base (1), and the upper end of the lower pressure rod (13) is threaded, and the upper end of the lower pressure rod (13) is threaded to the threaded groove (26).

8. The lightweight aluminum alloy integrated forming mold for a triangular rotor of a rotary engine according to claim 1, characterized in that: The fixing rod (10) is slidably connected in the fixing hole (8), and the annular groove (7) matches the annular block (9).

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