Extrusion forging equipment for high-strength aluminum alloy for high-speed railway

Abstract

The invention relates to the technical field of aluminum alloy forming, and discloses high-strength aluminum alloy extrusion forging equipment for a high-speed railway, which comprises a [-shaped base, a rectangular forming box is fixedly mounted at the top of the [-shaped base, a driving motor is fixedly mounted on the right side of the [-shaped base, and a double-threaded rod is rotatably mounted on the [-shaped base. The right end of the double-threaded rod extends out of the [-shaped base and is fixedly connected with an output shaft of the driving motor, and the vacuum mechanism comprises an air bellow rotationally arranged on the double-threaded rod in a sleeving mode. When an L-shaped ventilation groove in a rectangular plate enters a wide area of a T-shaped groove, an air box is communicated with a rectangular forming box through a rectangular groove, air in the rectangular forming box can be pumped out through air suction force at the moment, the interior of the rectangular forming box is in a vacuum state, oxide skin is prevented from being generated on the surface of a blank in the blank extrusion forming process, and the blank forming quality is improved. The oxide skin and the blank are formed together during extrusion, so that the forming quality is influenced.

Description

Technical Field

[0001] The present invention relates to the technical field of aluminum alloy material forming equipment, and specifically to an extrusion forging equipment for high-strength aluminum alloy used in high-speed railways. Background Art

[0002] Due to the high specific strength of aluminum alloy, especially the improvement of the rolling technology of large hollow thin-wall aluminum materials, it has become the most ideal material for high-speed train car bodies. The large hollow double-surface aluminum alloy extrusion profiles used for lightweight car bodies can greatly reduce the welding workload and simplify the vehicle manufacturing process. The aluminum alloys selected for the Japanese Shinkansen are generally: Al-Mg series alloys, Al-Mg-Si series alloys, and Al-Zn-Mg series alloys. Aluminum alloys of grades such as 5083 and 7003. With the increasing requirement for vehicle lightweight, after aluminum alloy materials, people have turned their attention to composite materials.

[0003] Before the application of aluminum alloy materials, it is necessary to perform extrusion forging process treatment on the aluminum alloy materials to meet the needs of different fields. However, during the extrusion forging of aluminum alloy materials, due to the friction between the aluminum alloy billet and the mold and the deformation of the billet itself, the oxide scale will peel off. The peeled oxide scale fragments will scatter around the mold or mix into the extrusion material. The aluminum alloy material containing oxide scale is more likely to crack at the position where the oxide scale is located, which will then lead to premature fracture of the material and reduce the tensile strength of the material. Summary of the Invention

[0004] The purpose of the present invention is to provide an extrusion forging equipment for high-strength aluminum alloy used in high-speed railways, so as to solve the problem that the peeled oxide scale fragments will scatter around the mold or mix into the extrusion material, and the aluminum alloy material containing oxide scale is more likely to crack at the position where the oxide scale is located, which will then lead to premature fracture of the material and reduce the tensile strength of the material.

[0005] To solve the above technical problems, the present invention is realized through the following technical solutions:

[0006] The present invention is an extrusion forging equipment for high-strength aluminum alloy used in high-speed railways, including a U-shaped base. A rectangular forming box is fixedly installed on the top of the U-shaped base. A driving motor is fixedly installed on the right side of the U-shaped base. A double-threaded rod is rotatably installed on the U-shaped base. The right end of the double-threaded rod extends outside the U-shaped base and is fixedly connected to the output shaft of the driving motor. It further includes:

[0007] Vacuum mechanism, the vacuum mechanism includes a bellows rotatably sleeved on a double threaded rod, several ventilation holes are opened on the left side of the bellows, several fan blades are fixedly installed on the double threaded rod, a rectangular adjustment box is fixedly installed on the rectangular forming box, two rectangular grooves are opened on the bottom inner wall of the rectangular forming box, the bottom ends of the two rectangular grooves both extend into the rectangular adjustment box, the top of the bellows is fixedly connected to the bottom of the rectangular adjustment box, an L-shaped exhaust pipe is fixedly installed on the right side of the bellows, the top end of the L-shaped exhaust pipe communicates with the rectangular adjustment box, and a T-shaped groove is opened in the rectangular adjustment box.

[0008] Further, a limiting spring is fixedly installed on the top inner wall of the T-shaped groove, a rectangular plate is fixedly installed at the bottom end of the limiting spring, the rectangular plate is slidably connected to the T-shaped groove, two L-shaped ventilation grooves are opened on the rectangular plate, and adaptation grooves are respectively opened on the left side and the right side of the rectangular adjustment box.

[0009] Further, a transmission mechanism is arranged on the double threaded rod, the transmission mechanism includes two transmission rods threadedly sleeved on the double threaded rod, both of the two transmission rods extend outside the U-shaped base and are both slidably connected to the U-shaped base, the ends of the two transmission rods close to each other both extend into the rectangular forming box and are both slidably connected to the rectangular forming box, L-shaped movable blocks are respectively fixedly installed at the ends of the two transmission rods close to each other, both of the two L-shaped movable blocks are slidably connected to the rectangular forming box, and mold grooves are respectively opened at the tops of the two L-shaped movable blocks.

[0010] Further, T-shaped limiting grooves are respectively opened on the two L-shaped movable blocks, a support plate is fixedly installed on the bottom inner wall of the rectangular forming box, a fitting plate is fixedly installed at the top of the support plate, the left side and the right side of the fitting plate respectively extend into the two T-shaped limiting grooves and are respectively slidably connected to the two T-shaped limiting grooves.

[0011] Further, a U-shaped mounting frame is fixedly installed on the top of the rectangular forming box, a hydraulic column is fixedly installed on the top inner wall of the U-shaped mounting frame, a T-shaped round groove is opened on the rectangular forming box, the T-shaped round groove communicates with the rectangular forming box, several telescopic springs are fixedly installed on the top inner wall of the T-shaped round groove, a circular pressing plate is fixedly installed at the bottom ends of the several telescopic springs, and the circular pressing plate is slidably connected to the T-shaped round groove.

[0012] Further, two adaptation mechanisms are arranged on the double threaded rod, the adaptation mechanism includes an adaptation spring one sleeved on the double threaded rod, the left end of the adaptation spring one is fixedly connected to the bellows, and an adaptation annular plate one is fixedly installed at the right end of the adaptation spring one.

[0013] Further, an adaptation spring II is sleeved on the double threaded rod. The right end of the adaptation spring II is fixedly connected to the right inner wall of the U-shaped base. The left end of the adaptation spring II is fixedly installed with an adaptation annular plate II, and the left side of the adaptation annular plate II is in contact with the transmission rod.

[0014] Further, a sealing mechanism is arranged on the rectangular forming box. The sealing mechanism includes a sealing groove opened in the rectangular forming box. A plurality of sealing springs are fixedly installed on the left inner wall of the sealing groove. The right ends of the plurality of sealing springs are fixedly installed with a sealing plate, and a pulling block is fixedly installed on the front surface of the sealing plate.

[0015] The present invention has the following beneficial effects:

[0016] (1) For an extrusion forging device of high-strength aluminum alloy for high-speed railways in the present invention, by pulling the pulling block, the pulling block drives the sealing plate to move towards the direction close to the sealing spring. At this time, the prepared blank is placed on the fitting plate, and then the pulling block is released. The sealing plate will reset under the elastic force of the sealing spring. At this time, the rectangular forming box is in a sealed state. Then, the driving motor is started, and the driving motor drives the double threaded rod to rotate. The double threaded rod drives a plurality of fan blades to rotate. The rotation of the fan blades generates a suction force. The suction force will suck the rectangular plate in the T-shaped groove downward through the L-shaped exhaust pipe. When the L-shaped ventilation groove on the rectangular plate enters the wider area of the T-shaped groove, the air box communicates with the rectangular forming box through the rectangular groove. At this time, the suction force will extract the air in the rectangular forming box, making the inside of the rectangular forming box in a vacuum state, avoiding the generation of oxide skin on the surface of the blank during the process of extruding the blank into shape. During extrusion, the oxide skin is formed together with the blank, affecting the forming quality.

[0017] (2) For an extrusion forging device of high-strength aluminum alloy for high-speed railways in the present invention, when the air in the rectangular forming box is exhausted, the driving motor is reversed. The driving motor drives the double threaded rod to reverse. The double threaded rod will drive the two transmission rods to approach each other. The transmission rods drive the L-shaped movable blocks to approach each other. When the two L-shaped movable blocks come into contact, the two die cavities will close to form a complete die cavity. At this time, the size of the complete die cavity is the same as that of the circular extrusion plate. Then, the hydraulic column is started. The hydraulic column descends and contacts the circular extrusion plate. The circular extrusion plate will descend. The circular extrusion plate will descend along the inner wall of the complete die cavity to extrude the blank into shape. During this process, the inside of the die cavity is still in a vacuum state, thereby reducing the possibility of generating oxide skin and improving the forming quality of the blank.

[0018] (3) In the extrusion forging equipment of high-strength aluminum alloy for high-speed railways of the present invention, during the air extraction process, when the driving motor rotates forward, it will drive the two transmission rods to move away from each other. During the movement of the transmission rods, they will disengage from the threads. The transmission rods will push the adaptive annular plate II to move away from the air box. At this time, the adaptive spring II will undergo compressive deformation. Under the elastic force of the adaptive spring II, the transmission rods will be in a semi-disengaged state from the threads, ensuring the normal rotation of the fan blades and not affecting the air extraction function. When the two die cavities come into contact with each other to form a complete die cavity, following the same principle as above, reverse the driving motor. Under the elastic force, the adaptive spring I makes the adaptive annular plate I press against the transmission rods, ensuring that the transmission rods are in a semi-disengaged state and preventing the phenomenon of jamming during the continuous operation of the transmission rods.

[0019] (4) In the extrusion forging equipment of high-strength aluminum alloy for high-speed railways of the present invention, when reversing the double-threaded rod, since the rotation of the fan blades no longer generates suction force and a blowing phenomenon occurs. When the gas is blown into the T-shaped groove through the L-shaped exhaust duct, due to the different air pressures in the rectangular forming box and the T-shaped groove, and the elastic force of the limiting spring, the rectangular plate will be quickly pushed upward. At this time, the L-shaped ventilation groove on the rectangular plate will also enter the narrower part of the T-shaped groove. The air blown into the T-shaped groove will be discharged from the adaptive groove outside the T-shaped groove. At this time, the rectangular forming box is still in a sealed state, effectively avoiding the re-entry of gas into the rectangular forming box, resulting in the appearance of oxide scales and affecting the forming quality of the blank.

[0020] Of course, it is not necessary for any product implementing the present invention to achieve all the above-mentioned advantages simultaneously. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0022] Figure 1 It is the overall structural schematic diagram of the present invention;

[0023] Figure 2 It is the front sectional structural schematic diagram of the present invention;

[0024] Figure 3 For the present invention Figure 2 The enlarged structural schematic diagram of A in it;

[0025] Figure 4 It is the partial sectional structural schematic diagram of the rectangular adjustment box of the present invention;

[0026] Figure 5 For the present invention Figure 4 The enlarged structural schematic diagram of B in it;

[0027] Figure 6 This is a partial sectional view structural diagram of two L-shaped movable blocks of the present invention;

[0028] Figure 7 For the present invention Figure 2 An enlarged structural diagram of C in it;

[0029] Figure 8 This is a partial sectional top view structural diagram of the rectangular forming box of the present invention.

[0030] In the attached drawings, the list of components represented by each reference numeral is as follows:

[0031] In the figure: 1, U-shaped base; 2, rectangular forming box; 3, driving motor; 4, double threaded rod; 5, vacuum mechanism; 501, air box; 502, ventilation hole; 503, fan blade; 504, rectangular adjustment box; 505, rectangular groove; 506, L-shaped exhaust duct; 507, T-shaped groove; 508, limiting spring; 509, rectangular plate; 510, L-shaped ventilation groove; 511, adaptation groove; 6, transmission mechanism; 601, transmission rod; 602, L-shaped movable block; 603, die groove; 604, rectangular limiting groove; 605, support plate; 606, fitting plate; 607, U-shaped mounting frame; 608, hydraulic column; 609, T-shaped circular groove; 610, telescopic spring; 611, circular pressing plate; 7, adaptation mechanism; 701, adaptation spring one; 702, adaptation annular plate one; 703, adaptation spring two; 704, adaptation annular plate two; 8, sealing mechanism; 801, sealing groove; 802, sealing spring; 803, sealing plate; 804, pull block. Specific embodiments

[0032] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a 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 those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0033] Please refer to Figure 1 - Figure 8 As shown, the present invention is an extrusion forging device for high-strength aluminum alloy used in high-speed railways, including a U-shaped base 1, a rectangular forming box 2 is fixedly installed on the top of the U-shaped base 1, a driving motor 3 is fixedly installed on the right side of the U-shaped base 1, a double threaded rod 4 is rotatably installed on the U-shaped base 1, the right end of the double threaded rod 4 extends outside the U-shaped base 1 and is fixedly connected to the output shaft of the driving motor 3, and further includes:

[0034] Vacuum mechanism 5, the vacuum mechanism 5 includes a bellows 501 rotatably sleeved on the double threaded rod 4. A plurality of ventilation holes 502 are opened on the left side of the bellows 501. A plurality of fan blades 503 are fixedly installed on the double threaded rod 4. A rectangular adjustment box 504 is fixedly installed on the rectangular forming box 2. Two rectangular grooves 505 are opened on the bottom inner wall of the rectangular forming box 2. The bottom ends of the two rectangular grooves 505 both extend into the rectangular adjustment box 504. The top of the bellows 501 is fixedly connected to the bottom of the rectangular adjustment box 504. An L-shaped exhaust pipe 506 is fixedly installed on the right side of the bellows 501. The top end of the L-shaped exhaust pipe 506 communicates with the rectangular adjustment box 504. A T-shaped groove 507 is opened in the rectangular adjustment box 504.

[0035] As Figure 3 and Figure 5 shown, a limiting spring 508 is fixedly installed on the top inner wall of the T-shaped groove 507. The bottom end of the limiting spring 508 is fixedly installed with a rectangular plate 509. The rectangular plate 509 is slidably connected to the T-shaped groove 507. Two L-shaped ventilation grooves 510 are opened on the rectangular plate 509. Adaptation grooves 511 are respectively opened on the left side and the right side of the rectangular adjustment box 504.

[0036] The suction force will suck the rectangular plate 509 in the T-shaped groove 507 downward through the L-shaped exhaust pipe 506. When the L-shaped ventilation grooves 510 on the rectangular plate 509 enter the wider area of the T-shaped groove 507, the bellows 501 communicates with the rectangular forming box 2 through the rectangular groove 505. At this time, the suction force will extract the air in the rectangular forming box 2, making the inside of the rectangular forming box 2 in a vacuum state, avoiding the generation of oxide skin on the surface of the blank during the process of squeezing and forming the blank. During extrusion, the oxide skin is formed together with the blank, affecting the forming quality.

[0037] As Figure 6 and Figure 7 shown, a transmission mechanism 6 is arranged on the double threaded rod 4. The transmission mechanism 6 includes two transmission rods 601 threadedly sleeved on the double threaded rod 4. Both transmission rods 601 extend outside the U-shaped base 1 and are both slidably connected to the U-shaped base 1. The mutually close ends of the two transmission rods 601 both extend into the rectangular forming box 2 and are both slidably connected to the rectangular forming box 2. The mutually close ends of the two transmission rods 601 are respectively fixedly installed with L-shaped movable blocks 602. Both L-shaped movable blocks 602 are slidably connected to the rectangular forming box 2. Mold grooves 603 are respectively opened on the tops of the two L-shaped movable blocks 602.

[0038] The double threaded rod 4 will drive the two transmission rods 601 to approach each other. The transmission rods 601 drive the L-shaped movable blocks 602 to approach each other. When the two L-shaped movable blocks 602 come into contact, the two mold grooves 603 will close to form a complete mold cavity.

[0039] As Figure 2 and Figure 6As shown, T-shaped limiting grooves 604 are respectively formed in two L-shaped movable blocks 602. A support plate 605 is fixedly installed on the bottom inner wall of the rectangular forming box 2. A fitting plate 606 is fixedly installed on the top of the support plate 605. The left and right sides of the fitting plate 606 respectively extend into the two T-shaped limiting grooves 604 and are respectively slidably connected with the two T-shaped limiting grooves 604.

[0040] During the process of the two L-shaped movable blocks 602 approaching each other, the fitting plate 606 and the support plate 605 will gradually enter the two T-shaped limiting grooves 604. At this time, the fitting plate 606 will block the gap between the die cavity 603 and the T-shaped limiting groove 604 to prevent air from entering the complete die cavity.

[0041] As Figure 2 shown, a U-shaped mounting frame 607 is fixedly installed on the top of the rectangular forming box 2. A hydraulic cylinder 608 is fixedly installed on the top inner wall of the U-shaped mounting frame 607. A T-shaped circular groove 609 is formed in the rectangular forming box 2. The T-shaped circular groove 609 communicates with the rectangular forming box 2. A plurality of telescopic springs 610 are fixedly installed on the top inner wall of the T-shaped circular groove 609. The bottom ends of the plurality of telescopic springs 610 are fixedly installed with a circular pressing plate 611. The circular pressing plate 611 is slidably connected with the T-shaped circular groove 609.

[0042] The size of the complete die cavity is the same as that of the circular pressing plate 611. Then, the hydraulic cylinder 608 is started. When the hydraulic cylinder 608 descends, it will contact the circular pressing plate 611. The circular pressing plate 611 will descend. The circular pressing plate 611 will descend along the inner wall of the complete die cavity to extrude and form the blank. During this process, the die cavity is still in a vacuum state, thereby reducing the possibility of oxide scale generation and improving the forming quality of the blank.

[0043] As Figure 3 shown, two adaptation mechanisms 7 are arranged on the double threaded rod 4. The adaptation mechanism 7 includes an adaptation spring one 701 sleeved on the double threaded rod 4. The left end of the adaptation spring one 701 is fixedly connected with the air box 501. The right end of the adaptation spring one 701 is fixedly installed with an adaptation annular plate one 702.

[0044] Reverse the drive motor 3. Under the action of the elastic force, the adaptation spring one 701 makes the adaptation annular plate one 702 press against the transmission rod 601 to ensure that the transmission rod 601 is in a semi-disengaged state and prevent the transmission rod 601 from being stuck during continuous operation.

[0045] As Figure 7 shown, an adaptation spring two 703 is sleeved on the double threaded rod 4. The right end of the adaptation spring two 703 is fixedly connected with the right inner wall of the U-shaped base 1. The left end of the adaptation spring two 703 is fixedly installed with an adaptation annular plate two 704. The left side of the adaptation annular plate two 704 is in contact with the transmission rod 601.

[0046] During the movement, the transmission rod 601 will disengage from the thread. The transmission rod 601 will push the second adaptable annular plate 704 to move away from the air box 501. At this time, the second adaptable spring 703 will undergo compressive deformation. Under the elastic force of the second adaptable spring 703, the transmission rod 601 will be in a semi-disengaged state from the thread, ensuring the normal rotation of the fan blade 503 and not affecting the air extraction function.

[0047] As Figure 8 shown, a sealing mechanism 8 is provided on the rectangular forming box 2. The sealing mechanism 8 includes a sealing groove 801 opened in the rectangular forming box 2. A plurality of sealing springs 802 are fixedly installed on the left inner wall of the sealing groove 801. A sealing plate 803 is fixedly installed at the right ends of the plurality of sealing springs 802. A pulling block 804 is fixedly installed on the front surface of the sealing plate 803.

[0048] Pull the pulling block 804. The pulling block 804 drives the sealing plate 803 to move towards the sealing spring 802. At this time, place the prepared blank on the fitting plate 606, and then release the pulling block 804. The sealing plate 803 will reset under the elastic force of the sealing spring 802. At this time, the rectangular forming box 2 is in a sealed state.

[0049] During use, pull the pulling block 804. The pulling block 804 drives the sealing plate 803 to move towards the sealing spring 802. At this time, place the prepared blank on the fitting plate 606, and then release the pulling block 804. The sealing plate 803 will reset under the elastic force of the sealing spring 802. At this time, the rectangular forming box 2 is in a sealed state. Then start the driving motor 3. The driving motor 3 drives the double threaded rod 4 to rotate. The double threaded rod 4 drives a number of fan blades 503 to rotate. The rotation of the fan blades 503 generates a suction force. The suction force will suck the rectangular plate 509 in the T-shaped groove 507 downward through the L-shaped exhaust duct 506. When the L-shaped ventilation groove 510 on the rectangular plate 509 enters the wider area of the T-shaped groove 507, the air box 501 communicates with the rectangular forming box 2 through the rectangular groove 505. At this time, the suction force will extract the air in the rectangular forming box 2, making the inside of the rectangular forming box 2 in a vacuum state, avoiding the generation of oxide scale on the surface of the blank during the process of squeezing the blank into shape. During extrusion, the oxide scale is formed together with the blank, affecting the forming quality; when the air in the rectangular forming box 2 is exhausted, reverse the driving motor 3. The driving motor 3 drives the double threaded rod 4 to reverse. The double threaded rod 4 will drive the two transmission rods 601 to approach each other. The transmission rods 601 drive the L-shaped movable blocks 602 to approach each other. When the two L-shaped movable blocks 602 come into contact, the two die cavities 603 will close to form a complete die cavity. At this time, the size of the complete die cavity is the same as that of the circular extrusion plate 611. Then start the hydraulic column 608. The descent of the hydraulic column 608 will contact the circular extrusion plate 611. The circular extrusion plate 611 will descend. The circular extrusion plate 611 will descend along the inner wall of the complete die cavity to extrude and form the blank. During this process, the inside of the die cavity is still in a vacuum state, thereby reducing the possibility of oxide scale generation and improving the forming quality of the blank;

[0050] During the air extraction process, the forward rotation of the drive motor 3 will drive the two transmission rods 601 to move away from each other. The transmission rods 601 will disengage from the threads during the movement. The transmission rods 601 will push the adaptable annular plate two 704 to move away from the air box 501. At this time, the adaptable spring two 703 will undergo compressive deformation. Under the elastic force of the adaptable spring two 703, the transmission rods 601 will be in a semi-disengaged state from the threads, ensuring the normal rotation of the fan blades 503 and not affecting the air extraction function. When the two die slots 603 come into contact with each other to form a complete die cavity, following the same principle as above, reverse the drive motor 3. The adaptable spring one 701 will, under the elastic force, make the adaptable annular plate one 702 press against the transmission rods 601, ensuring that the transmission rods 601 are in a semi-disengaged state and preventing the phenomenon of jamming during the continuous operation of the transmission rods 601; when reversing the double-threaded rod 4, since the rotation of the fan blades 503 no longer generates suction force and a blowing phenomenon occurs. When the gas is blown into the T-shaped groove 507 through the L-shaped exhaust pipe 506, due to the different air pressures in the rectangular forming box 2 and the T-shaped groove 507, and plus the elastic force of the limit spring 508, the rectangular plate 509 will be quickly pushed upward. At this time, the L-shaped ventilation groove 510 on the rectangular plate 509 will also enter the narrower part of the T-shaped groove 507. The air blown into the T-shaped groove 507 will be discharged from the T-shaped groove 507 through the adaptable groove 511. At this time, the rectangular forming box 2 is still in a sealed state, effectively avoiding the re-entry of gas into the rectangular forming box 2, resulting in the appearance of oxide scale and affecting the forming quality of the blank material.

[0051] 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 embodiments described. Obviously, many modifications and variations can be made according to the content of this specification. This specification selects and specifically describes these embodiments to better explain the principle and practical application of the present invention, so that those skilled in the relevant technical field can well understand and utilize the present invention. The present invention is only limited by the claims and their full scope and equivalents.

Claims

1. An extrusion forging device for high-strength aluminum alloy used in high-speed railways, including a U-shaped base (1), a rectangular forming box (2) is fixedly installed on the top of the U-shaped base (1), a driving motor (3) is fixedly installed on the right side of the U-shaped base (1), a double-threaded rod (4) is rotatably installed on the U-shaped base (1), the right end of the double-threaded rod (4) extends outside the U-shaped base (1) and is fixedly connected to the output shaft of the driving motor (3), and it is characterized in that, Further included are: A vacuum mechanism (5), the vacuum mechanism (5) includes a bellows (501) rotatably sleeved on a double threaded rod (4), a plurality of ventilation holes (502) are opened on the left side of the bellows (501), a plurality of fan blades (503) are fixedly installed on the double threaded rod (4), a rectangular adjustment box (504) is fixedly installed on the rectangular forming box (2), two rectangular grooves (505) are opened on the bottom inner wall of the rectangular forming box (2), the bottom ends of the two rectangular grooves (505) both extend into the rectangular adjustment box (504), the top of the bellows (501) is fixedly connected to the bottom of the rectangular adjustment box (504), an L-shaped exhaust duct (506) is fixedly installed on the right side of the bellows (501), the top end of the L-shaped exhaust duct (506) communicates with the rectangular adjustment box (504), and a T-shaped groove (507) is opened in the rectangular adjustment box (504).

2. The extrusion forging equipment for high-strength aluminum alloy used in high-speed railways according to claim 1, characterized in that: A limiting spring (508) is fixedly installed on the top inner wall of the T-shaped groove (507), a rectangular plate (509) is fixedly installed at the bottom end of the limiting spring (508), the rectangular plate (509) is slidably connected to the T-shaped groove (507), two L-shaped ventilation grooves (510) are opened on the rectangular plate (509), and adaptation grooves (511) are respectively opened on the left side and the right side of the rectangular adjustment box (504).

3. The extrusion forging equipment for high-strength aluminum alloy used in high-speed railways according to claim 1, characterized in that: A transmission mechanism (6) is arranged on the double threaded rod (4), the transmission mechanism (6) includes two transmission rods (601) threadedly sleeved on the double threaded rod (4), both of the two transmission rods (601) extend outside the U-shaped base (1) and are both slidably connected to the U-shaped base (1), the mutually approaching ends of the two transmission rods (601) both extend into the rectangular forming box (2) and are both slidably connected to the rectangular forming box (2), L-shaped movable blocks (602) are respectively fixedly installed at the mutually approaching ends of the two transmission rods (601), both of the two L-shaped movable blocks (602) are slidably connected to the rectangular forming box (2), and die grooves (603) are respectively opened at the tops of the two L-shaped movable blocks (602).

4. An extrusion forging device for high-strength aluminum alloy used in high-speed railways according to claim 3, characterized in that: T-shaped limiting grooves (604) are respectively opened on the two L-shaped movable blocks (602), a support plate (605) is fixedly installed on the bottom inner wall of the rectangular forming box (2), a fitting plate (606) is fixedly installed at the top of the support plate (605), the left side and the right side of the fitting plate (606) respectively extend into the two T-shaped limiting grooves (604) and are respectively slidably connected to the two T-shaped limiting grooves (604).

5. The extrusion forging equipment for high-strength aluminum alloy used in high-speed railways according to claim 1, characterized in that: A U-shaped mounting frame (607) is fixedly installed on the top of the rectangular forming box (2). A hydraulic cylinder (608) is fixedly installed on the inner wall of the top of the U-shaped mounting frame (607). A T-shaped circular groove (609) is formed in the rectangular forming box (2), and the T-shaped circular groove (609) communicates with the rectangular forming box (2). A plurality of telescopic springs (610) are fixedly installed on the inner wall of the top of the T-shaped circular groove (609). The bottom ends of the plurality of telescopic springs (610) are fixedly installed with a circular pressing plate (611), and the circular pressing plate (611) is slidably connected to the T-shaped circular groove (609).

6. The extrusion forging equipment for high-strength aluminum alloy used in high-speed railways according to claim 1, characterized in that: Two adapting mechanisms (7) are arranged on the double threaded rod (4). The adapting mechanism (7) includes an adapting spring one (701) sleeved on the double threaded rod (4). The left end of the adapting spring one (701) is fixedly connected to the air box (501), and the right end of the adapting spring one (701) is fixedly installed with an adapting annular plate one (702).

7. An extrusion forging device for high-strength aluminum alloy used in high-speed railways according to claim 3, characterized in that: An adapting spring two (703) is sleeved on the double threaded rod (4). The right end of the adapting spring two (703) is fixedly connected to the inner wall of the right side of the U-shaped base (1). The left end of the adapting spring two (703) is fixedly installed with an adapting annular plate two (704), and the left side of the adapting annular plate two (704) is in contact with the transmission rod (601).

8. The extrusion forging equipment for high-strength aluminum alloy used in high-speed railways according to claim 1, characterized in that: A sealing mechanism (8) is arranged on the rectangular forming box (2). The sealing mechanism (8) includes a sealing groove (801) formed in the rectangular forming box (2). A plurality of sealing springs (802) are fixedly installed on the inner wall of the left side of the sealing groove (801). The right ends of the plurality of sealing springs (802) are fixedly installed with a sealing plate (803), and a pulling block (804) is fixedly installed on the front surface of the sealing plate (803).

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