A die-casting machine and method based on the machining of gearbox aluminum housing

Abstract

This invention relates to the field of die casting machines, specifically a die casting machine and method based on the processing of aluminum housings for gearboxes. The device includes a base, on which a first mold and a second mold are slidably mounted. A support block is fixedly installed on the side of the first mold, and a grinding plunger device is fixedly installed at the center of the first mold. This invention achieves the purpose of the threaded rod extending and retracting to drive the third gear to rotate, and simultaneously allows the third gear to rotate on its own axis, through the grinding components on the grinding plunger device. A grinding mounting component is provided inside the grinding ring, and the grinding mounting component is provided with a grinding transmission component and a grinding connection component. This allows the grinding ring to adapt to the oxide scale and pits and protrusions formed by molten aluminum adhering to the inner wall of the plunger tube when rotating, thereby grinding the protrusions and oxide scale, improving the sealing effect of the plunger, the conveying effect of the pumped molten aluminum, and improving the quality of die casting.

Description

Technical Field

[0001] This invention belongs to the field of die casting machines, specifically a die casting machine and method based on the machining of aluminum housings for gearboxes. Background Technology

[0002] The die-casting machine for gearbox aluminum housings is a high-pressure casting equipment specifically designed for producing aluminum alloy gearbox housings. By pressing molten aluminum into a precision mold at high speed, it rapidly forms a housing blank with complex structures, characterized by high precision, high strength, and high efficiency. Its clamping force typically ranges from 500 to 4000 tons, enabling one-piece molding of thin-walled, multi-hole, and irregularly shaped structures, significantly reducing subsequent processing. It is widely used in the automotive, machinery, and new energy industries and is a key piece of equipment for manufacturing lightweight components.

[0003] A patent application with publication number CN109093096B discloses a melt-blowing injection nozzle for an aluminum alloy die-casting machine. The nozzle includes a nozzle body, with a transmission box welded to the outer side of one end and a nozzle threaded to the outer side of the other end. The inner surface of the nozzle body has a molten metal channel. Compared to ordinary gear transmission, the worm gear structure has a large transmission ratio, a compact structure, and high stability, improving the stability of the plunger injection speed and ensuring the uniformity of molten material injection. Simultaneously, the worm gear structure has self-locking properties, preventing tooth stripping. Through the movement of hydraulic oil, kinetic energy is converted into heat and dissipated, achieving the purpose of shock absorption for the piston rod, ensuring linear movement of the piston rod, improving transmission efficiency, and making it suitable for different working conditions, thus bringing better application prospects.

[0004] While the aforementioned device can improve the uniformity of molten material injection during use, the outer wall of the plunger rod is prone to aluminum molten material adhering to it due to high-temperature expansion, forming oxide scale that adheres to the outer wall of the plunger rod. When the plunger rod retracts, it is easy to form scratches on the plunger surface. With prolonged use, bulges and pits are likely to appear, resulting in poor sealing performance. Summary of the Invention

[0005] This invention provides a die-casting machine and method based on the processing of aluminum housings for gearboxes, solving the technical problems in related technologies where the outer wall of the plunger rod is prone to aluminum melt adhesion due to high temperature expansion, forming oxide scale that adheres to the outer wall of the plunger rod. When the plunger rod is retracted, it easily forms scratches on the plunger surface, and with long-term use, it is prone to protrusions and pits, resulting in poor sealing performance.

[0006] The first aspect of this invention discloses a die-casting machine based on the processing of an aluminum housing for a gearbox, comprising a base, on which a first mold and a second mold are slidably disposed. A support block is fixedly installed on the side of the first mold, and a grinding plunger device is fixedly installed at the center of the first mold. The grinding plunger device is connected to a hydraulic rod. After the first mold and the second mold are engaged, the grinding plunger device pumps high-temperature molten aluminum into the space reserved between the first mold and the second mold. The grinding plunger device is used to grind the solidified molten aluminum. The grinding plunger device includes a first transmission component, a threaded rod, a grinding component, a plunger component, and a support connecting rod. A plunger is provided. A through hole is provided at the center of the first mold closing part, and the plunger is fixedly installed therewith. The plunger is slidably installed inside the plunger. A support rod is fixedly installed on the side of the plunger away from the first mold closing part. A threaded rod is slidably installed on the outside of the support rod. A grinding part is threaded on the outside of the threaded rod. The grinding part is rotatably connected to the side of the plunger. A first transmission member is rotatably installed on the top of the support block. The first transmission member meshes with the threaded rod. The rotation of the first transmission member drives the threaded rod to slide. The sliding of the threaded rod drives the grinding part to rotate for grinding the inner wall of the plunger.

[0007] As a further optimization of the present invention, the first transmission component includes a first rotating rod and a second rotating rod symmetrically arranged on the support block. A first half gear is fixedly installed on the top of the first rotating rod, and a second half gear is fixedly installed on the top of the second rotating rod. Both the first half gear and the second half gear mesh with the threaded rod. The second rotating rod and the first rotating rod rotate in the same direction. The motor connected to the first rotating rod and the second rotating rod is fixedly connected to the support connecting rod. When the support connecting rod moves, it drives the first transmission component to move in the direction of the first mold closing.

[0008] As a further optimization of the present invention, the threaded rod is provided with a first thread and a second thread on its exterior. The first thread is used to engage with the first transmission component, and the second thread is used to engage with the grinding component.

[0009] As a further optimization of the present invention, the grinding component includes a first threaded ring threaded onto the outside of a threaded rod, a second rotating ring rotatably mounted on the outside of the first threaded ring, a first protrusion fixedly mounted on the outer wall of the second rotating ring, a first limiting rod fixedly mounted on the side of the first threaded ring, a fifth gear fixedly mounted at the end of the first limiting rod, the fifth gear rotatably mounted on the side of the plunger, a first sliding groove formed on the side of the plunger, a second tooth fixedly mounted on the outside of the plunger, a fourth gear slidably mounted inside the first sliding groove, a third gear fixedly mounted at the end of the fourth gear, the third gear corresponding to the position of the first protrusion, the third gear meshing with the fifth gear and the second tooth, and a plurality of grinding rings disposed between the fourth gear and the second rotating ring, the grinding rings being used to grind the inner wall of the plunger component.

[0010] As a further optimization of the present invention, the plunger component includes a plunger tube fixedly installed on the side of the support block, and the plunger tube is provided with a liquid inlet.

[0011] As a further optimization of the present invention, the grinding plunger device includes a grinding mounting component fixedly installed inside the grinding ring. A grinding transmission component is provided on the grinding mounting component near the second rotating ring. The grinding transmission component is rotatably connected to the second rotating ring. A grinding connecting component is provided on the grinding mounting component away from the second rotating ring. The two grinding mounting components are connected through the grinding connecting component. The third gear is connected to the grinding mounting component through the grinding transmission component.

[0012] As a further optimization of the present invention, the grinding transmission component includes a first U-shaped block rotatably mounted inside the first protrusion, a second rotating block rotatably mounted inside the first U-shaped block, a first telescopic rod fixedly mounted at the end of the second rotating block, a first spring provided outside the first telescopic rod, a second U-shaped block fixedly mounted at the end of the first telescopic rod, the end of the second U-shaped block rotatably connected to the grinding mounting component, and a grinding transmission component provided on the side of the third gear, with the first U-shaped block fixedly connected to the third gear.

[0013] As a further optimization of the present invention, the grinding mounting component includes a third fixing block fixedly installed inside the grinding ring, and a second fixing block symmetrically arranged is fixedly installed inside the third fixing block, with a first limiting post fixedly installed at both ends of the second fixing block.

[0014] As a further optimization of the present invention, the grinding connector includes a third U-shaped block rotatably mounted at the center of the first limiting post, a third telescopic rod fixedly mounted on the side of the third U-shaped block, a second spring provided on the outside of the third U-shaped block, and another grinding mounting component connected to the end of the third telescopic rod.

[0015] The second aspect of this invention discloses a die-casting method based on the machining of an aluminum gearbox housing, comprising the following steps:

[0016] Step 1: Start the hydraulic pump to move the second mold closer to the first mold, so that the first mold and the second mold come into contact with each other. Then, pour the molten aluminum into the inside of the plunger tube from the inlet. Then, start the hydraulic pump connected to the support rod, so that the molten aluminum inside the plunger tube is pushed closer to the first mold, so that the molten aluminum is transported through the plunger tube to the gap reserved between the first mold and the second mold.

[0017] Step 2: After the molten aluminum has been transported into the first mold, the motor is started to drive the first rotating rod and the second rotating rod to rotate. The first rotating rod and the second rotating rod rotate in the same direction, causing the threaded rod to slide outside the support connecting rod. The second thread outside the threaded rod contacts the first threaded ring, causing the first threaded ring to rotate. The first threaded ring drives the fifth gear to rotate. The second tooth meshes with the third gear, so the fifth gear can drive the third gear to rotate. At the same time, under the action of the second tooth, the third gear rotates around the fifth gear as the center, so that the grinding ring grinds the inner wall of the plunger tube, and grinds the inner wall of the plunger tube and the solidified molten aluminum dripping from the inlet.

[0018] Step 3: Start the hydraulic pump connected to the support rod to reset the plunger. When the plunger moves the grinding component, it grinds the inner wall of the plunger tube. The grinding ring has a grinding mounting component inside. Multiple grinding rings are connected by grinding connectors. The first protrusion is connected to the grinding mounting component through a grinding transmission component. When there is a metal protrusion inside the plunger tube, the grinding ring can adapt to the height of the protrusion on the inner wall of the plunger tube under the action of the grinding transmission component and the grinding connector, preventing the grinding ring from being squeezed by the protrusion inside the plunger tube and failing to reset. The grinding process is completed when the support rod is fully reset, and the next round of die casting can be carried out.

[0019] The beneficial effects of this invention are as follows:

[0020] The present invention discloses a die-casting machine and method based on the processing of aluminum housing of gearbox. The grinding mechanism utilizes a grinding element on a grinding plunger to achieve the extension and retraction of the threaded rod, driving the rotation of the third gear and simultaneously allowing the third gear to rotate on its own axis. The grinding ring contains a grinding mounting component, which includes a grinding transmission component and a grinding connection component. This allows the grinding ring to adapt to the oxide scale and pits / protrusions formed by molten aluminum adhering to the inner wall of the plunger tube during rotation, thereby grinding away the protrusions and oxide scale, improving the sealing effect of the plunger, enhancing the pumping effect of the molten aluminum, and ultimately improving the quality of the die casting. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall shape of the device of the present invention;

[0022] Figure 2 This is a schematic diagram of the overall device installation of the present invention;

[0023] Figure 3 This is a schematic diagram of the internal structure of the grinding plunger device of the present invention;

[0024] Figure 4 This is a schematic diagram of the connection of the plunger component of the present invention;

[0025] Figure 5 This is a schematic diagram of the internal structure of the grinding part of the present invention;

[0026] Figure 6 This is a schematic diagram of the connection of the grinding component of the present invention;

[0027] Figure 7 This is a schematic diagram of the installation of the grinding component of the present invention;

[0028] Figure 8 yes Figure 7 Enlarged view of point A in the middle.

[0029] In the picture:

[0030] 1. Base; 12. First mold closing; 13. Second mold closing; 14. Support block;

[0031] 2. Grinding plunger device; 21. First transmission component; 211. First rotating rod; 212. First half gear; 213. Second rotating rod; 214. Second half gear; 22. Threaded rod; 221. First thread; 222. Second thread; 23. Grinding component; 231. First threaded ring; 232. Second rotating ring; 2321. First protrusion; 233. Grinding ring; 2331. Round edge; 234. Third gear; 235. Fourth gear; 236. Fifth gear; 237. First limiting rod; 24. Plunger component; 24 1. Plunger tube; 242. Liquid inlet; 25. Support rod; 26. Plunger rod; 261. First groove; 262. Second tooth; 27. Grinding transmission component; 271. First U-shaped block; 272. Second rotating block; 273. First telescopic rod; 274. First spring; 275. Second U-shaped block; 28. Grinding mounting component; 281. First limiting post; 282. Second fixing block; 283. Third fixing block; 29. ​​Grinding connector; 291. Third U-shaped block; 292. Second spring; 293. Third telescopic rod. Detailed Implementation

[0032] The subject matter described herein will now be discussed with reference to exemplary embodiments. It should be understood that these embodiments are discussed only to enable those skilled in the art to better understand and implement the subject matter described herein, and changes may be made to the function and arrangement of the elements discussed without departing from the scope of this specification. Various processes or components may be omitted, substituted, or added as needed in the examples. Furthermore, features described in some examples may be combined in other examples.

[0033] like Figures 1 to 3 As shown in the figure, a die-casting machine based on the processing of gearbox aluminum housing according to an embodiment of the present invention includes a base 1. A first mold 12 and a second mold 13 are slidably disposed on the base 1. A support block 14 is fixedly installed on the side of the first mold 12. A grinding plunger device 2 is fixedly installed at the center of the first mold 12. The grinding plunger device 2 is connected to a hydraulic rod. After the first mold 12 and the second mold 13 are combined, the grinding plunger device 2 pumps high-temperature aluminum liquid into the space reserved in the first mold 12 and the second mold 13. The grinding plunger device 2 is used to grind the solidified aluminum liquid.

[0034] like Figures 3 to 4As shown, the grinding plunger device 2 includes a first transmission component 21, a threaded rod 22, a grinding component 23, a plunger component 24, a support connecting rod 25, and a plunger column 26. The first mold closing 12 has a through hole at its center and is fixedly installed with the plunger component 24. The plunger column 26 is slidably installed inside the plunger component 24. The support connecting rod 25 is fixedly installed on the side of the plunger column 26 away from the first mold closing 12. The threaded rod 22 is slidably installed on the outside of the support connecting rod 25. The grinding component 23 is threadedly installed on the outside of the threaded rod 22. The grinding component 23 is rotatably connected to the side of the plunger column 26. The first transmission component 21 is rotatably installed on the top of the support block 14. The first transmission component 21 is externally engaged with the threaded rod 22. The rotation of the first transmission component 21 drives the threaded rod 22 to slide. The sliding of the threaded rod 22 drives the grinding component 23 to rotate for grinding the inner wall of the plunger component 24.

[0035] It should be noted that during the die casting of the gearbox aluminum housing, molten aluminum needs to be poured into the plunger tube 241 through the inlet 242. Then, a hydraulic pump drives the support rod 25 to move closer to the first mold 12, thereby pumping the molten aluminum into the molds of the first and second molds 13, thus completing the die casting process. At this time, the starter motor drives the first transmission component 21 to rotate, which in turn drives the threaded rod 22 to slide back and forth outside the support rod 25. The sliding of the threaded rod 22 drives the grinding component 23 to rotate. When the molten aluminum comes into contact with the inner wall of the plunger tube 241, it leaves marks and easily forms oxide scale. When the plunger 26 again... When sliding inside the plunger tube 241, problems such as unevenness and increased friction occur. Therefore, a first groove 261 is provided on the side of the plunger 26. The first groove 261 engages with the grinding element 23, thereby driving the grinding element 23 to rotate and grind the inner wall of the plunger tube 241. This keeps the inner wall of the plunger tube 241 smooth and prevents grooves from forming on the inner wall of the plunger tube 241 due to uneven force when the plunger 26 slides inside the plunger tube 241, which could lead to damage and sealing failure. The grinding element 23 can adapt to the unevenness of the inner wall of the plunger tube 241 after the aluminum liquid solidifies, thereby improving the grinding effect.

[0036] like Figures 2 to 3As shown, the first transmission component 21 includes a first rotating rod 211 and a second rotating rod 213 symmetrically arranged on the support block 14. A first half gear 212 is fixedly installed on the top of the first rotating rod 211, and a second half gear 214 is fixedly installed on the top of the second rotating rod 213. Both the first half gear 212 and the second half gear 214 mesh with the threaded rod 22. The second rotating rod 213 and the first rotating rod 211 rotate in the same direction. The motor connected to the first rotating rod 211 and the second rotating rod 213 is fixedly connected to the support connecting rod 25. When the support connecting rod 25 moves, it drives the first transmission component 21 to move in the direction of the first mold closing 12.

[0037] It should be noted that the second half gear 214 and the first half gear 212 rotate clockwise in the same direction. Therefore, the second half gear 214 and the first half gear 212 can drive the threaded rod 22 to slide outside the support connecting rod 25, thereby driving the grinding part 23 to rotate.

[0038] like Figure 3 As shown, the threaded rod 22 is provided with a first thread 221 and a second thread 222 on its exterior. The first thread 221 is used to engage with the first transmission member 21, and the second thread 222 is used to engage with the grinding member 23.

[0039] It should be noted that the first thread 221 is a thread, while the second thread 222 is a reciprocating thread. Therefore, the first thread 221 meshes with the first transmission component 21, while the second thread 222 meshes with the grinding component 23, thereby achieving the purpose of the threaded rod 22 sliding outside the support connecting rod 25 to drive the grinding component 23 to rotate.

[0040] like Figures 4 to 6As shown, the grinding component 23 includes a first threaded ring 231 threaded onto the outside of a threaded rod 22. A second rotating ring 232 is rotatably mounted on the outside of the first threaded ring 231. A first protrusion 2321 is fixedly mounted on the outer wall of the second rotating ring 232. A first limiting rod 237 is fixedly mounted on the side of the first threaded ring 231. A fifth gear 236 is fixedly mounted on the end of the first limiting rod 237. The fifth gear 236 is rotatably mounted on the side of the plunger 26. A first sliding groove 261 is formed on the side of the plunger 26. The plunger 26 has a second tooth 262 fixedly mounted on its exterior. A fourth gear 235 is slidably mounted inside the first groove 261. A third gear 234 is fixedly mounted at the end of the fourth gear 235. The third gear 234 corresponds to the position of the first protrusion 2321. The third gear 234 meshes with the fifth gear 236 and the second tooth 262. A plurality of grinding rings 233 are provided between the fourth gear 235 and the second rotating ring 232. The grinding rings 233 are used to grind the inner wall of the plunger 24.

[0041] It should be noted that the sliding of the second thread 222 drives the first threaded ring 231 to rotate, and the first threaded ring 231 is provided with a first limiting rod 237 on its side, thereby driving the fifth gear 236 at the end of the first limiting rod 237 to rotate. Therefore, the fourth gear 235 can rotate around the fifth gear 236 as the center, and the fourth gear 235 can also rotate on its own axis. The second rotating ring 232 is mounted on the outside of the first threaded ring 231. Therefore, when the fourth gear 235 rotates and drives the grinding ring 233 to move and rotate, it can drive the first protrusion 2321 to rotate with the grinding ring 233, thereby polishing the inner wall of the plunger tube 241 and preventing the formation of protrusions and oxide scale after the aluminum liquid solidifies. This also prevents the problem of protrusions and pits from appearing when the plunger 26 moves again.

[0042] like Figure 3 As shown, the plunger component 24 includes a plunger tube 241 fixedly installed on the side of the support block 14, and the plunger tube 241 is provided with a liquid inlet 242.

[0043] It should be noted that the liquid inlet 242 is used to transport high-temperature molten aluminum into the plunger tube 241, while the plunger 26 moves toward the first mold closing 12 to transport the molten aluminum inside the plunger tube 241.

[0044] like Figures 6 to 8As shown, the grinding plunger device 2 includes a grinding mounting component 28 fixedly installed inside the grinding ring 233. A grinding transmission component 27 is provided on the grinding mounting component 28 near the second rotating ring 232. The grinding transmission component 27 is rotatably connected to the second rotating ring 232. A grinding connecting component 29 is provided on the grinding mounting component 28 away from the second rotating ring 232. The two grinding mounting components 28 are connected through the grinding connecting component 29. The third gear 234 is connected to the grinding mounting component 28 through the grinding transmission component 27.

[0045] It should be noted that the grinding transmission component 27, the grinding mounting component 28, and the grinding connector 29 enable the grinding ring 233 to adapt to the protrusions and pits generated on the inner wall of the plunger tube 241 when it moves. Even if the inner wall of the plunger tube 241 protrudes due to the solidification of aluminum liquid, it can still adapt to the height of the protrusion for grinding, and will not have the problem of only grinding the highest point of the protrusion, thereby improving the grinding effect. The grinding ring 233 has a rounded edge 2331 on its side, which better adapts to the inner wall of the plunger tube 241.

[0046] like Figure 8 As shown, the grinding transmission component 27 includes a first U-shaped block 271 rotatably mounted inside the first protrusion 2321, a second rotating block 272 rotatably mounted inside the first U-shaped block 271, a first telescopic rod 273 fixedly mounted at the end of the second rotating block 272, a first spring 274 provided outside the first telescopic rod 273, a second U-shaped block 275 fixedly mounted at the end of the first telescopic rod 273, and the end of the second U-shaped block 275 rotatably connected to the grinding mounting component 28. The grinding transmission component 27 is provided on the side of the third gear 234, and the first U-shaped block 271 is fixedly connected to the third gear 234.

[0047] It should be noted that the rotation of the first U-shaped block 271 can drive the second rotating block 272, the first telescopic rod 273 and the second U-shaped block 275 to rotate. The end of the second U-shaped block 275 is connected to the grinding mounting part 28, so the grinding mounting part 28 can be tilted at any angle without affecting the rotation effect, and can automatically adapt to the height of the protrusion, thus facilitating grinding.

[0048] like Figure 8 As shown, the grinding mounting component 28 includes a third fixing block 283 fixedly installed inside the grinding ring 233. A second fixing block 282 symmetrically arranged is fixedly installed inside the third fixing block 283. A first limiting post 281 is fixedly installed at both ends of the second fixing block 282.

[0049] It should be noted that the rotation of the second U-shaped block 275 can drive the first limiting post 281, the second fixing block 282, and the third fixing block 283 to rotate. The third fixing block 283 is provided with a grinding ring 233 on its outside, thereby driving the grinding ring 233 to rotate. The grinding rings 233 are connected by a grinding connector 29, so that the multiple grinding rings 233 can adapt to the height adjustment of the protrusion on the inner wall of the plunger tube 241, thereby facilitating grinding.

[0050] like Figure 8 As shown, the grinding connector 29 includes a third U-shaped block 291 rotatably mounted at the center of the first limiting post 281. A third telescopic rod 293 is fixedly mounted on the side of the third U-shaped block 291. A second spring 292 is provided on the outside of the third U-shaped block 291. The end of the third telescopic rod 293 is connected to another grinding mounting component 28.

[0051] It should be noted that the function of the grinding connector 29 is the same as that of the grinding transmission component 27, which facilitates adaptive adjustment when the grinding ring 233 contacts the protrusion on the inner wall of the plunger tube 241.

[0052] A die-casting method based on the machining of an aluminum gearbox housing, the method employing the aforementioned die-casting machine for machining an aluminum gearbox housing, includes the following steps:

[0053] Step 1: Start the hydraulic pump to move the second mold 13 closer to the first mold 12, so that the first mold 12 and the second mold 13 come into contact with each other. Then, pour the molten aluminum into the plunger tube 241 from the inlet 242. Then, start the hydraulic pump connected to the support rod 25, so that the aluminum inside the plunger tube 241 is pushed closer to the first mold 12, so that the aluminum is transported through the plunger tube 241 to the gap reserved between the first mold 12 and the second mold 13.

[0054] Step 2: After the molten aluminum is transported into the first mold 12, the motor is started to drive the first rotating rod 211 and the second rotating rod 213 to rotate. The first rotating rod 211 and the second rotating rod 213 rotate in the same direction, so that the threaded rod 22 slides outside the support connecting rod 25. The second thread 222 outside the threaded rod 22 contacts the first threaded ring 231, driving the first threaded ring 231 to rotate. The first threaded ring 231 drives the fifth gear 236 to rotate. The second tooth 262 meshes with the third gear 234. Therefore, the fifth gear 236 can drive the third gear 234 to rotate. At the same time, under the action of the second tooth 262, the third gear 234 rotates around the fifth gear 236 as the center, so that the grinding ring 233 grinds the inner wall of the plunger tube 241, and grinds the molten aluminum that drips onto the inner wall of the plunger tube 241 and forms a solid.

[0055] Step 3: Start the hydraulic pump connected to the support rod 25 to reset the plunger 26. When the plunger 26 moves the grinding component 23, it grinds the inner wall of the plunger tube 241. The grinding ring 233 has a grinding mounting component 28 inside. Multiple grinding rings 233 are connected by grinding connectors 29. The first protrusion 2321 is connected to the grinding mounting component 28 through a grinding transmission component 27. When there is a metal protrusion inside the plunger tube 241, the grinding ring 233 can adapt to the height of the protrusion on the inner wall of the plunger tube 241 under the action of the grinding transmission component 27 and the grinding connector 29. This prevents the grinding ring 233 from being squeezed by the protrusion inside the plunger tube 241 and failing to reset. The grinding process is completed when the support rod 25 is fully reset, and the next round of die casting can be carried out.

[0056] The embodiments of the present invention have been described above, but the present invention is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms based on the guidance of the embodiments described above, all of which are within the protection scope of the present invention.

Claims

1. A die-casting machine based on the machining of an aluminum gearbox housing, comprising a base (1), characterized in that: The base (1) is slidably provided with a first mold (12) and a second mold (13). A support block (14) is fixedly installed on the side of the first mold (12). A grinding plunger device (2) is fixedly installed at the center of the first mold (12). The grinding plunger device (2) is connected to a hydraulic rod. After the first mold (12) and the second mold (13) are combined, the grinding plunger device (2) pumps high-temperature aluminum liquid into the space reserved between the first mold (12) and the second mold (13). The grinding plunger device (2) is used to grind the solidified aluminum liquid. The grinding plunger device (2) includes a first transmission component (21), a threaded rod (22), a grinding component (23), a plunger component (24), a support connecting rod (25), and a plunger column (26). A through hole is provided at the center of the first mold closing unit (12) and is fixedly installed with the plunger component (24). The plunger column (26) is slidably installed inside the plunger component (24). A support connecting rod (25) is fixedly installed on the side of the plunger column (26) away from the first mold closing unit (12). A support connecting rod (25) is slidably installed on the outside of the support connecting rod (25). A threaded rod (22) is provided with a grinding component (23) installed on its external thread. The grinding component (23) is rotatably connected to the side of the plunger (26). A first transmission component (21) is rotatably installed on the top of the support block (14). The first transmission component (21) meshes with the external threaded rod (22). The rotation of the first transmission component (21) causes the threaded rod (22) to slide. The sliding of the threaded rod (22) causes the grinding component (23) to rotate for grinding the inner wall of the plunger (24).

2. The die-casting machine based on the machining of gearbox aluminum housing according to claim 1, characterized in that: The first transmission component (21) includes a first rotating rod (211) and a second rotating rod (213) symmetrically arranged on the support block (14). A first half gear (212) is fixedly installed on the top of the first rotating rod (211), and a second half gear (214) is fixedly installed on the top of the second rotating rod (213). Both the first half gear (212) and the second half gear (214) mesh with the threaded rod (22). The second rotating rod (213) and the first rotating rod (211) rotate in the same direction. The motor connected to the first rotating rod (211) and the second rotating rod (213) is fixedly connected to the support connecting rod (25). When the support connecting rod (25) moves, it drives the first transmission component (21) to move in the direction of the first mold closing (12).

3. A die-casting machine based on the machining of an aluminum gearbox housing according to claim 2, characterized in that: The threaded rod (22) is provided with a first thread (221) and a second thread (222) on the outside. The first thread (221) is used to engage with the first transmission member (21), and the second thread (222) is used to engage with the grinding member (23).

4. A die-casting machine based on the machining of an aluminum gearbox housing according to claim 3, characterized in that: The grinding component (23) includes a first threaded ring (231) threaded onto the outside of a threaded rod (22), a second rotating ring (232) rotatably mounted on the outside of the first threaded ring (231), a first protrusion (2321) fixedly mounted on the outer wall of the second rotating ring (232), a first limiting rod (237) fixedly mounted on the side of the first threaded ring (231), a fifth gear (236) fixedly mounted at the end of the first limiting rod (237), the fifth gear (236) rotatably mounted on the side of the plunger (26), a first sliding groove (261) opened on the side of the plunger (26), and the plunger... The second tooth (262) is fixedly installed on the outside of the column (26), and the fourth gear (235) is slidably installed inside the first slide groove (261). The end of the fourth gear (235) is fixedly installed with a third gear (234). The third gear (234) corresponds to the position of the first protrusion (2321). The third gear (234) meshes with the fifth gear (236) and the second tooth (262). A plurality of grinding rings (233) are provided between the fourth gear (235) and the second rotating ring (232). The grinding rings (233) are used to grind the inner wall of the plunger (24).

5. A die-casting machine based on the machining of an aluminum gearbox housing according to claim 4, characterized in that: The plunger component (24) includes a plunger tube (241) fixedly installed on the side of the support block (14), and the plunger tube (241) is provided with a liquid inlet (242).

6. A die-casting machine based on the machining of an aluminum gearbox housing according to claim 5, characterized in that: The grinding plunger device (2) includes a grinding mounting part (28) fixedly installed inside the grinding ring (233). A grinding transmission part (27) is provided on the grinding mounting part (28) near the second rotating ring (232). The grinding transmission part (27) is rotatably connected to the second rotating ring (232). A grinding connector (29) is provided on the grinding mounting part (28) away from the second rotating ring (232). The two grinding mounting parts (28) are connected through the grinding connector (29). The third gear (234) is connected to the grinding mounting part (28) through the grinding transmission part (27).

7. A die-casting machine based on gearbox aluminum housing machining according to claim 6, characterized in that: The grinding transmission component (27) includes a first U-shaped block (271) rotatably mounted inside a first protrusion (2321), a second rotating block (272) rotatably mounted inside the first U-shaped block (271), a first telescopic rod (273) fixedly mounted at the end of the second rotating block (272), a first spring (274) provided outside the first telescopic rod (273), a second U-shaped block (275) fixedly mounted at the end of the first telescopic rod (273), the end of the second U-shaped block (275) rotatably connected to the grinding mounting component (28), and the grinding transmission component (27) provided on the side of the third gear (234). The first U-shaped block (271) is fixedly connected to the third gear (234).

8. A die-casting machine based on the machining of an aluminum gearbox housing according to claim 7, characterized in that: The grinding mounting component (28) includes a third fixing block (283) fixedly installed inside the grinding ring (233), and a second fixing block (282) symmetrically arranged is fixedly installed inside the third fixing block (283). A first limiting post (281) is fixedly installed at both ends of the second fixing block (282).

9. A die-casting machine based on the machining of an aluminum gearbox housing according to claim 8, characterized in that: The grinding connector (29) includes a third U-shaped block (291) rotatably mounted at the center of the first limiting post (281), a third telescopic rod (293) fixedly mounted on the side of the third U-shaped block (291), a second spring (292) provided on the outside of the third U-shaped block (291), and another grinding mounting component (28) connected to the end of the third telescopic rod (293).

10. A die-casting method for a die-casting machine based on the machining of an aluminum gearbox housing as described in claim 9, characterized in that: Includes the following steps: Step 1: Start the hydraulic pump to move the second mold (13) closer to the first mold (12), so that the first mold (12) and the second mold (13) come into contact with each other. Then, pour the molten aluminum liquid from the inlet (242) into the interior of the plunger tube (241). Then, start the hydraulic pump connected to the support rod (25), so that the aluminum liquid inside the plunger tube (241) is pushed closer to the first mold (12), so that the aluminum liquid is transported through the plunger tube (241) to the gap reserved between the first mold (12) and the second mold (13). Step 2: After the molten aluminum has been transported into the first mold (12), the motor is started to drive the first rotating rod (211) and the second rotating rod (213) to rotate. The first rotating rod (211) and the second rotating rod (213) rotate in the same direction, causing the threaded rod (22) to slide outside the supporting connecting rod (25). The second thread (222) outside the threaded rod (22) contacts the first threaded ring (231), causing the first threaded ring (231) to rotate. The first threaded ring (231) drives the fifth... When the gear (236) rotates, the second tooth (262) meshes with the third gear (234), so the fifth gear (236) drives the third gear (234) to rotate. At the same time, under the action of the second tooth (262), the third gear (234) rotates around the fifth gear (236) as the center, so that the grinding ring (233) grinds the inner wall of the plunger tube (241) and grinds the inner wall of the plunger tube (241) and the solid aluminum liquid dripping from the inlet (242). Step 3: Start the hydraulic pump connected to the support rod (25) to reset the plunger (26). When the plunger (26) drives the grinding part (23) to move, it grinds the inner wall of the plunger tube (241). The grinding ring (233) is provided with a grinding mounting part (28). Multiple grinding rings (233) are connected by a grinding connector (29). The first protrusion (2321) and the grinding mounting part (28) are connected by a grinding transmission part (29). 7) Connection, so that when there is a metal protrusion inside the plunger tube (241), the grinding ring (233) adapts to the height of the protrusion on the inner wall of the plunger tube (241) under the action of the grinding transmission component (27) and the grinding connector (29), to prevent the grinding ring (233) from being squeezed by the protrusion inside the plunger tube (241) and unable to reset, until the support connecting rod (25) is fully reset, then the grinding action is completed and the next round of die casting can be carried out.

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