Automobile lightweight aluminum alloy hot die forging press

Abstract

The invention relates to the technical field of hot die forging press machines, in particular to an automobile lightweight aluminum alloy hot die forging press machine which comprises a press machine body internally provided with a die, and the press machine body comprises a forging and pressing block moving in the longitudinal direction and a press machine base located at the bottom of the press machine body. A rotatable arc-shaped supporting seat is installed in the press machine base, an extension arm is fixedly arranged on one side of the arc-shaped supporting seat, a connecting rod is hinged to the tail end of the extension arm, and a transmission assembly which is hinged to the connecting rod and used for driving the arc-shaped supporting seat to rotate is installed on one side of the forging and pressing block. By arranging the transmission assembly, the connecting rod and the arc-shaped supporting base, the arc-shaped supporting base can be driven to rotate in the ascending process of the forging and pressing block, the lower die can be driven to incline in the rotating process, meanwhile, a guide column and a guide sliding groove extrude each other, and at a certain angle, an unloading push plate is driven to push out a formed workpiece; the purpose of demolding of formed workpieces is achieved, and the problems of workpiece residues or mold clamping and the like are solved.

Description

Technical Field

[0001] The invention relates to the technical field of hot die forging presses, and in particular to a hot die forging press for lightweight aluminum alloys for automobiles. Background Art

[0002] Hot die forging presses can produce high-strength aluminum alloy forgings in a short time through forging processing at high temperatures. This equipment uses dies to accurately shape aluminum alloy materials, ensuring the shape and dimensional accuracy of the forgings. Using aluminum alloy forgings to replace some steel parts can significantly reduce the curb weight of the car. The reduction in the weight of the car also helps to lower the center of gravity, thereby improving the stability of the car during driving.

[0003] In the process of forging aluminum alloy materials, some structures can be formed by a single forging. After the aluminum is forged, it is necessary to manually remove and collect the formed parts. It takes a certain amount of time to manually remove and collect the formed parts, which will increase the production cycle and reduce production efficiency. Especially in the case of mass production, this time consumption will be more obvious. At the same time, after the forging is completed, the parts and molds often have a higher temperature. When manually removing and collecting, workers may face the risk of scalding, causing certain safety hazards.

[0004] Therefore, it is necessary to invent a lightweight aluminum alloy hot die forging press for automobiles to solve the above problems. Summary of the invention

[0005] The purpose of the present invention is to provide a lightweight aluminum alloy hot die forging press for automobiles, which realizes the purpose of automatic demoulding by controlling the rotation of the mold and the push-out time of the mold push rod. By setting a unloading module, the unloading module and the demoulding structure are matched to realize the purpose of automatic demoulding and automatic collection of formed parts.

[0006] To achieve this object, the present invention adopts the following technical solutions: A lightweight aluminum alloy hot die forging press for automobiles is provided, comprising a press body with a mold installed inside, the press body comprising a forging block moving in the longitudinal direction, and a press base located at the bottom of the press body, a rotatable arc-shaped support seat is installed inside the press base, an extension arm is fixedly provided on one side of the arc-shaped support seat, a connecting rod is hinged on the end of the extension arm, a transmission assembly hinged with the connecting rod and used for driving the arc-shaped support seat to rotate is installed on one side of the forging block, and a lower mold is detachably installed on the top of the arc-shaped support seat.

[0007] As a preferred solution for a lightweight aluminum alloy hot forging press for automobiles, a plurality of arc-shaped guide blocks are arranged at the bottom end of the arc-shaped support seat, and an arc-shaped slide groove for sliding the arc-shaped guide blocks is provided on the inner concave surface of the press base, and the two side surfaces of the arc-shaped guide blocks are in contact with the side surfaces of the arc-shaped slide groove, and the arc-shaped guide blocks can rotate along the arc-shaped slide groove.

[0008] As a preferred solution for a lightweight aluminum alloy hot forging press for automobiles, the interior of the arc-shaped support seat is provided with a guide column that penetrates and extends to the interior of the press base, and one end of the guide column is detachably mounted with a discharge push plate for synchronously ejecting the workpiece, and the inner concave surface of the press base is also provided with a guide groove for the guide column to slide, and when the guide column slides along the guide groove to tilt 45 degrees to the left, the top end of the guide column can drive the discharge push plate to be pushed out synchronously.

[0009] As a preferred solution of a lightweight aluminum alloy hot forging press for automobiles, a rack 2 is installed on the arc surface of the arc guide block, a bottom through groove is provided at the bottom of the arc slide groove, a rectangular through groove is provided on the side of the press base, the rectangular through groove and the bottom through groove are connected to each other, a unloading module is slidably arranged inside the rectangular through groove, a unloading module is slidably arranged inside the rectangular through groove, the unloading module is transmission-connected to the rack 2, and when the arc guide block rotates counterclockwise, the unloading module moves horizontally and approaches the lower die.

[0010] As a preferred solution for a lightweight aluminum alloy hot forging press for automobiles, the unloading module includes a rack 1 and a unloading guide plate for collecting workpieces. The rack 1 slides along the rectangular through groove, and the portion of the rack 1 located at the bottom through groove engages with the rack 2 at the bottom end of the arc guide block. When the arc support seat is beveled to 45 degrees, the unloading push plate pushes the part out completely, and under the mutual engagement of the rack 1 and the rack 2, one end of the unloading guide plate fits with the lower die.

[0011] As a preferred solution of a lightweight aluminum alloy hot forging press for automobiles, the upper die is detachably installed at the bottom end of the forging block, and the transmission assembly includes a guide rail, a guide slider, a telescopic cylinder, a clamping block and a shell. The multiple guide rails are located inside the shell, and the guide slider is slidably connected along the guide rail. The guide slider is hinged with the connecting rod, and the telescopic cylinder is detachably installed on the top of the shell. The bottom end of the shell is provided with a clamping block for preventing the guide slider from falling off; when the forging block slides upward, the upper die and the lower die are changed from a closed state to a separated state. At this time, the guide slider is located in the upper half of the shell. In the process of the forging block sliding upward, the guide slider slides upward under the action of the mass of the arc support seat, and the guide slider is in a stationary state. When the guide slider contacts the clamping block, the guide slider pulls the connecting rod to drive the arc support seat to rotate.

[0012] As a preferred solution of a lightweight aluminum alloy hot forging press for automobiles, the telescopic end of the telescopic cylinder penetrates and extends to the interior of the shell, and is detachably connected to a positioning plate, which slides along a guide rail, and a plurality of buffer springs are arranged at the bottom end of the positioning plate, and a buffer block is connected to the bottom end of the buffer spring; when the forging block slides vertically downward, the telescopic ends of the telescopic cylinders on both sides drive the positioning plates to be pushed outward synchronously, so that the bottom connecting rod of the guide slider drives the arc-shaped support seat to be converted from an inclined state to a horizontal state, and when the arc-shaped support seat is in a horizontal state, the telescopic cylinder contracts, and at this time the forging block continues to descend, so that the upper die forges the parts in the lower die, and the guide slider slides upward along the guide rail so that the upper die can fit with the lower die.

[0013] As a preferred solution for a lightweight aluminum alloy hot forging press for automobiles, the top of the arc-shaped support seat is also provided with an installation groove for placing a discharge push plate. The discharge push plate is located at the bottom end of the lower die, and the outer sides of multiple push rods at the top of the discharge push plate are provided with springs for keeping the end of the guide column in contact with the guide groove.

[0014] As a preferred solution for a lightweight aluminum alloy hot forging press for automobiles, the top of the press base is provided with a limit plate for ensuring that the arc-shaped support seat is in a horizontal state after resetting, and the top of the press base is fixedly provided with a guide shaft for clamping the lower die for rotating the arc-shaped support seat, one end of the guide shaft extends to the interior of the lower die and is rotatably connected thereto, and the axis of the guide shaft is coaxially arranged with the rotation axis of the lower die.

[0015] The beneficial effects of the present invention are as follows: by setting a transmission component, a connecting rod and an arc-shaped support seat, the arc-shaped support seat can be driven to rotate during the rising process of the forging block. During the rotation process, the arc-shaped support seat can drive the lower die to tilt, and at the same time, the guide column and the guide slide groove squeeze each other. At a certain inclination angle, the unloading push plate is driven to completely push out the formed workpiece, thereby achieving the purpose of demolding the formed workpiece and avoiding problems such as workpiece residue or die jamming. The rack 2 at the bottom end of the arc-shaped support seat is meshed with the rack 1 of the unloading module. When the arc-shaped support seat is rotated to the demolding angle, the unloading guide plate and the lower die are fitted together to collect the pushed-out molded parts, which is convenient for subsequent processing and achieves the purpose of demolding and unloading. The setting of the transmission component can avoid interference and collision between the upper die and the lower die during the lifting process, avoid damage to the die by impact, and help extend the service life of the die. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required to be used in the embodiments of the present invention. Obviously, the drawings described below are only some embodiments of the present invention, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0018] Figure 2 It is a schematic diagram of the overall assembly of the present invention in a tilted state.

[0019] Figure 3 It is a schematic diagram of the connection structure of the transmission component of the present invention.

[0020] Figure 4 It is a schematic diagram of the local structure of the press base of the present invention.

[0021] Figure 5 It is a partial cross-sectional structural schematic diagram of the arc-shaped support seat of the present invention.

[0022] Figure 6 It is a schematic diagram of the top structure of the arc-shaped support seat of the present invention.

[0023] Figure 7 It is a schematic diagram of the concave surface structure of the press base of the present invention.

[0024] Figure 8 It is a schematic diagram of the structure of the press body of the present invention.

[0025] Fig. 9 It is a schematic diagram of the internal structure of the transmission component of the present invention.

[0026] Fig.10 It is a structural schematic diagram of the connection relationship between rack 1 and rack 2 of the present invention.

[0027] Fig.11 The present invention Fig.10 Enlarged structural diagram at A in the middle.

[0028] Fig.12 It is a structural schematic diagram of the connection relationship between the guide column and the guide slot of the present invention.

[0029] In the figure: 1. Press machine body; 2. Discharge module; 201. Discharge guide plate; 202. Rack 1; 3. Die; 301. Upper die; 302. Lower die; 4. Transmission assembly; 401. Guide rail; 402. Guide slide block; 403. Telescopic cylinder; 404. Positioning plate; 405. Buffer spring; 406. Buffer block; 407. Block; 408. Housing; 5. Connecting rod; 6. Forging block; 7. Press base; 701. Limiting plate; 702. Guide shaft; 703. Rectangular through groove; 704. Bottom through groove; 705. Arc slide groove; 706. Guide slide groove; 8. Arc support seat; 801. Mounting groove; 802. Arc guide block; 803. Rack II; 804. Extension arm; 9. Guide column; 10. Unloading push plate. DETAILED DESCRIPTION

[0030] The technical solution of the present invention is further described below with reference to the accompanying drawings and through specific implementation methods.

[0031] Among them, the drawings are only used for illustrative explanations, and they only represent schematic diagrams rather than actual pictures, and should not be understood as limitations on this patent; in order to better illustrate the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of the actual product; for those skilled in the art, it is understandable that some well-known structures and their descriptions in the drawings may be omitted.

[0032] The same or similar numbers in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if the terms "upper", "lower", "left", "right", "inner", "outer", etc. appear, the orientation or position relationship indicated is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the terms describing the position relationship in the drawings are only used for illustrative purposes and cannot be understood as a limitation on this patent. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0033] In the description of the present invention, unless otherwise clearly specified and limited, if the term "connection" or the like appears to indicate the connection relationship between components, the term should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two components or the interaction relationship between two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0034] refer to Figures 1 to 9An example of the present invention provides a hot die forging press for lightweight aluminum alloy for automobiles, including a press body 1 with a mold 3 installed inside, the press body 1 includes a forging block 6 that moves in the longitudinal direction, and a press base 7 located at the bottom of the press body 1, a rotatable arc-shaped support seat 8 is installed inside the press base 7, an extension arm 804 is fixedly provided on one side of the arc-shaped support seat 8, a connecting rod 5 is hinged on the end of the extension arm 804, a transmission assembly 4 hinged to the connecting rod 5 and used to drive the arc-shaped support seat 8 to rotate is installed on one side of the forging block 6, and a lower mold 302 is detachably installed on the top of the arc-shaped support seat 8. The extension arm 804 on one side of the arc-shaped support seat 8 is parallel to the upper surface of the arc-shaped support seat 8. The side wall of the press base 7 is provided with a slot for accommodating the extension arm 804. In the process of the connecting rod 5 driving the extension arm 804 to rotate, the connecting rod 5 will not interfere with the transmission assembly 4. The transmission assembly 4 is configured to control the rotation time of the arc-shaped support seat 8 to avoid interference that causes the molds 3 to collide with each other, thereby effectively protecting the molds 3 from impact damage.

[0035] The bottom end of the arc support seat 8 is provided with a plurality of arc guide blocks 802, and the inner concave surface of the press base 7 is provided with an arc chute 705 for the arc guide blocks 802 to slide, and the two side surfaces of the arc guide blocks 802 are in contact with the side surfaces of the arc chute 705, and the arc guide blocks 802 can rotate along the arc chute 705. The depth of the arc chute 705 can meet the rotation of the rack 2 803 inside it, and the end surface thereof can reduce the friction resistance by setting lubricating oil.

[0036] The interior of the arc-shaped support seat 8 is provided with a guide column 9 that penetrates and extends to the interior of the press base 7. One end of the guide column 9 is detachably mounted with a discharge push plate 10 for synchronously ejecting the workpiece. The inner concave surface of the press base 7 is also provided with a guide slot 706 for the guide column 9 to slide. When the guide column 9 slides along the guide slot 706 to tilt 45 degrees to the left, the top of the guide column 9 can drive the discharge push plate 10 to be pushed out synchronously. The guide slot 706 is curved as a whole. The contour of the front half of the guide column 9 may not push the guide column 9 upward, and the contour of the rear half of the guide column 9 may drive the guide column 9 to be pushed upward. When it reaches about 45 degrees, the guide column 9 can drive the discharge push plate 10 to be pushed upward as a whole until the workpiece is completely demolded, thereby avoiding the mold jam of the molded workpiece.

[0037] The arc surface of the arc guide block 802 is provided with a second rack 803, the bottom of the arc slide 705 is provided with a bottom through slot 704, the side of the press base 7 is provided with a rectangular through slot 703, the rectangular through slot 703 and the bottom through slot 704 are interconnected, a discharge module 2 is slidably arranged inside the rectangular through slot 703, the discharge module 2 is slidably arranged inside the rectangular through slot 703, the discharge module 2 is transmission-connected with the second rack 803, when the arc guide block 802 rotates counterclockwise, the discharge module 2 moves horizontally and approaches the lower die 302. The bottom through slot 704 is located above the rectangular through slot 703, ensuring that the second rack 803 and the first rack 202 can mesh with each other, thereby improving the accuracy of transmission and reducing the cost of manual operation.

[0038] The unloading module 2 includes a rack 1 202 and a unloading guide plate 201 for collecting workpieces. The rack 1 202 slides along the rectangular through groove 703. The portion of the rack 1 202 located at the bottom through groove 704 meshes with the rack 2 803 at the bottom end of the arc-shaped guide block 802. When the arc-shaped support seat 8 is cut to 45 degrees, the unloading push plate 10 pushes the parts out completely. Under the mutual meshing of the rack 1 202 and the rack 2 803, one end of the unloading guide plate 201 fits with the lower die 302. The meshing of the rack 1 202 and the rack 2 803 ensures that the unloading guide plate can move accurately with the rotation of the arc-shaped support seat 8, thereby realizing accurate collection and guidance of the workpieces.

[0039] The bottom end of the forging block 6 is detachably mounted with an upper die 301, the transmission assembly 4 includes a guide rail 401, a guide slider 402, a telescopic cylinder 403, a block 407 and a housing 408, a plurality of the guide rails 401 are located inside the housing 408, the guide slider 402 is slidably connected along the guide rail 401, the guide slider 402 is hinged with the connecting rod 5, the telescopic cylinder 403 is detachably mounted on the top end of the housing 408, and the bottom end of the housing 408 is provided with a clamping block 407 for preventing the guide slider from sliding. 402 detached block 407; when the forging block 6 slides upward, the upper die 301 and the lower die 302 change from the closed state to the separated state, at this time the guide slider 402 is located in the upper half of the shell 408, during the upward sliding of the forging block 6, the guide slider 402 slides upward under the action of the mass of the arc-shaped support seat 8, the guide slider 402 is in a stationary state, when the guide slider 402 contacts the block 407, the guide slider 402 pulls the connecting rod 5 to drive the arc-shaped support seat 8 to rotate. The setting of the telescopic cylinder 403 is used to ensure that during the rising process of the forging block 6, the rotation of the arc-shaped support seat 8 occurs after the guide slider 402 contacts the block 407; ensure that the lower die 302 rotates after the upper die 301 and the lower die 302 are separated by a certain distance, so as to avoid the upper die 301 and the lower die 302 being stuck to each other, thereby causing damage to the mold 3.

[0040] The telescopic end of the telescopic cylinder 403 passes through and extends to the interior of the shell 408, and is detachably connected to a positioning plate 404, which slides along the guide rail 401. A plurality of buffer springs 405 are provided at the bottom end of the positioning plate 404, and a buffer block 406 is connected to the bottom end of the buffer spring 405. When the forging block 6 slides vertically downward, the telescopic ends of the telescopic cylinders 403 on both sides drive the positioning plate 404 to be pushed out synchronously, so that the bottom end connecting rod 5 of the guide slider 402 drives the arc support seat 8 to be converted from an inclined state to a horizontal state. When the arc support seat 8 is in a horizontal state, the telescopic cylinder 403 contracts. At this time, the forging block 6 continues to descend, so that the upper die 301 forges the parts in the lower die 302, and the guide slider 402 slides upward along the guide rail 401, so that the upper die 301 can fit with the lower die 302. By adjusting the position of the positioning plate 404 through the telescopic cylinder 403, it can be ensured that during the descent of the forging block 6, the arc-shaped support seat 8 is driven to rotate to a horizontal state first, ensuring that during the descent of the upper mold 301, the guide of the lower mold 302 can be used normally, avoiding the collision of the mold 3 due to the tilt of the lower mold 302.

[0041] The top of the arc-shaped support seat 8 is also provided with a mounting groove 801 for placing the unloading push plate 10. The unloading push plate 10 is located at the bottom of the lower mold 302. The outer side of the multiple ejector rods at the top of the unloading push plate 10 is provided with a spring for the end of the guide column 9 to keep in contact with the guide slot 706. The depth of the mounting groove 801 should be sufficient to meet the push-out distance to push out the formed workpiece completely. The spring is located at the bottom of the lower mold 302 and the top of the unloading push plate 10. When the arc-shaped support seat 8 is in a horizontal state, it is ensured that the bottom of the unloading push plate 10 is in contact with the mounting groove 801, and the bottom of the guide column 9 is in contact with the guide slot 706, thereby ensuring the quality of part molding.

[0042] The top of the press base 7 is provided with a limit plate 701 for ensuring that the arc-shaped support seat 8 is in a horizontal state after resetting. The top of the press base 7 is fixedly provided with a guide shaft 702 for clamping the lower die 302 for the arc-shaped support seat 8 to rotate. One end of the guide shaft 702 extends to the inside of the lower die 302 and is rotatably connected thereto. The axis of the guide shaft 702 is coaxially arranged with the rotation axis of the lower die 302. The arrangement of the guide shaft 702 can ensure that the lower die 302 and the arc-shaped support seat 8 rotate around a point. The extended end of the guide shaft 702 is located at the center of the arc-shaped support seat 8. At the same time, the guide shaft 702 needs to avoid interference with the upper die 301 in the fitting state in the height direction.

[0043] The present invention, by providing a transmission assembly 4, a connecting rod 5 and an arc-shaped support seat 8, can realize that the arc-shaped support seat 8 is driven to rotate during the rising process of the forging block 6. During the rotation process, the arc-shaped support seat 8 can drive the lower die 302 to tilt. At the same time, the guide column 9 and the guide slide groove 706 squeeze each other. At a certain tilt angle, the unloading push plate 10 is driven to completely push out the formed workpiece, so as to achieve the purpose of demolding the formed workpiece and avoid problems such as workpiece residue or die jamming. The rack 2 803 at the bottom end of the arc-shaped support seat 8 is meshed with the rack 1 202 of the unloading module 2. When the arc-shaped support seat 8 is rotated, the lower die 302 can be driven to tilt. At the same time, the guide column 9 and the guide slide groove 706 squeeze each other. At a certain tilt angle, the unloading push plate 10 is driven to completely push out the formed workpiece, so as to achieve the purpose of demolding the formed workpiece, and avoid problems such as workpiece residue or die jamming. The rack 2 803 at the bottom end of the arc-shaped support seat 8 is meshed with the rack 1 202 of the unloading module 2. When the support seat 8 rotates to the demoulding angle, the unloading guide plate 201 and the lower mold 302 fit together to collect the molded parts after being pushed out, which is convenient for subsequent processing and achieves the purpose of demoulding and unloading. The setting of the transmission component 4 can avoid interference and collision between the upper mold 301 and the lower mold 302 during the lifting process, and avoid damage to the mold 3 by impact, which helps to extend the service life of the mold 3. At the same time, the inclined lower mold 302 can also make it easier for debris or residues to be discharged along the inclined surface under the action of gravity, thereby improving the appearance quality and overall performance of the product.

[0044] It should be noted that the above specific implementations are only preferred embodiments of the present invention and the technical principles used. Those skilled in the art should understand that various modifications, equivalent substitutions, changes, etc. can be made to the present invention. However, as long as these changes do not deviate from the spirit of the present invention, they should be within the scope of protection of the present invention. In addition, some terms used in the specification and claims of this application are not restrictive, but are only for the convenience of description.

Claims

1. A hot die forging press for lightweight aluminum alloys for automobiles, characterized in that: The invention comprises a press body (1) having a die (3) installed therein, the press body (1) comprising a forging block (6) moving in the longitudinal direction, and a press base (7) located at the bottom of the press body (1), a rotatable arc-shaped support seat (8) being installed therein, an extension arm (804) being fixedly provided on one side of the arc-shaped support seat (8), a connecting rod (5) being hinged at the end of the extension arm (804), a transmission assembly (4) being hinged to the connecting rod (5) and used for driving the arc-shaped support seat (8) to rotate being installed on one side of the forging block (6), and a lower die (302) being detachably installed at the top end of the arc-shaped support seat (8).

2. A lightweight aluminum alloy hot die forging press for automobiles according to claim 1, characterized in that: A plurality of arc-shaped guide blocks (802) are arranged at the bottom end of the arc-shaped support seat (8); an arc-shaped slide groove (705) for the arc-shaped guide blocks (802) to slide is provided on the inner concave surface of the press base (7); two side surfaces of the arc-shaped guide block (802) are in contact with the side surfaces of the arc-shaped slide groove (705); and the arc-shaped guide block (802) can rotate along the arc-shaped slide groove (705).

3. The automotive lightweight aluminum alloy hot die forging press according to claim 2, characterized in that: The arc-shaped support seat (8) is provided with a guide column (9) penetrating through and extending into the interior of the press base (7); one end of the guide column (9) is detachably mounted with a discharge push plate (10) for synchronously ejecting a workpiece; the inner concave surface of the press base (7) is also provided with a guide groove (706) for the guide column (9) to slide; when the guide column (9) slides along the guide groove (706) to tilt 45 degrees to the left, the top end of the guide column (9) can drive the discharge push plate (10) to be synchronously pushed outward.

4. The automotive lightweight aluminum alloy hot die forging press according to claim 2, characterized in that: The arc surface of the arc guide block (802) is provided with a second rack (803); the bottom of the arc slide groove (705) is provided with a bottom through groove (704); the side of the press base (7) is provided with a rectangular through groove (703); the rectangular through groove (703) and the bottom through groove (704) are communicated with each other; a discharge module (2) is slidably arranged inside the rectangular through groove (703); the discharge module (2) is slidably arranged inside the rectangular through groove (703); the discharge module (2) is transmission-connected to the second rack (803); when the arc guide block (802) rotates counterclockwise, the discharge module (2) moves horizontally and approaches the lower mold (302).

5. The automotive lightweight aluminum alloy hot die forging press according to claim 4, characterized in that: The unloading module (2) comprises a rack 1 (202) and a unloading guide plate (201) for collecting workpieces, wherein the rack 1 (202) slides along the rectangular through groove (703), and the portion of the rack 1 (202) located at the bottom through groove (704) is meshed with the rack 2 (803) at the bottom end of the arc-shaped guide block (802). When the arc-shaped support seat (8) is beveled to 45 degrees, the unloading push plate (10) completely pushes the parts out, and under the mutual meshing of the rack 1 (202) and the rack 2 (803), one end of the unloading guide plate (201) is fitted with the lower mold (302).

6. The automotive lightweight aluminum alloy hot die forging press according to claim 1, characterized in that: The bottom end of the forging block (6) is detachably mounted with an upper die (301), the transmission assembly (4) comprises a guide rail (401), a guide slider (402), a telescopic cylinder (403), a block (407) and a housing (408), the plurality of guide rails (401) being located inside the housing (408), the guide slider (402) being slidably connected along the guide rail (401), the guide slider (402) being hinged to the connecting rod (5), the telescopic cylinder (403) being detachably mounted on the top end of the housing (408), and the bottom end of the housing (408) being provided with a member for preventing the guide slider from sliding. (402) the detached block (407); when the forging block (6) slides upward, the upper die (301) and the lower die (302) change from a closed state to a separated state, at which time the guide slider (402) is located in the upper half of the shell (408), and during the upward sliding of the forging block (6), the guide slider (402) slides upward under the action of the mass of the arc-shaped support seat (8), and the guide rail (401) slides upward, and the guide slider (402) is in a stationary state. When the guide slider (402) contacts the block (407), the guide slider (402) pulls the connecting rod (5) to drive the arc-shaped support seat (8) to rotate.

7. The automotive lightweight aluminum alloy hot die forging press according to claim 6, characterized in that: The telescopic end of the telescopic cylinder (403) penetrates and extends into the interior of the housing (408) and is detachably connected to a positioning plate (404). The positioning plate (404) slides along the guide rail (401). A plurality of buffer springs (405) are provided at the bottom end of the positioning plate (404). The bottom end of the buffer spring (405) is connected to a buffer block (406). When the forging block (6) slides vertically downward, the telescopic ends of the telescopic cylinders (403) on both sides drive the positioning plate (404) to move. The guide slider (402) is pushed outward synchronously, so that the bottom connecting rod (5) of the guide slider (402) drives the arc-shaped support seat (8) to be converted from an inclined state to a horizontal state. When the arc-shaped support seat (8) is in the horizontal state, the telescopic cylinder (403) contracts. At this time, the forging block (6) continues to descend, so that the upper die (301) forges the parts in the lower die (302). The guide slider (402) slides upward along the guide rail (401), so that the upper die (301) can fit with the lower die (302).

8. The automotive lightweight aluminum alloy hot die forging press according to claim 3, characterized in that: The top of the arc-shaped support seat (8) is also provided with a mounting groove (801) for placing a discharge push plate (10), and the discharge push plate (10) is located at the bottom end of the lower mold (302). The outer sides of the multiple push rods at the top of the discharge push plate (10) are provided with springs for keeping the end of the guide column (9) in contact with the guide groove (706).

9. The automotive lightweight aluminum alloy hot die forging press according to claim 1, characterized in that: A limit plate (701) is provided at the top of the press base (7) for ensuring that the arc-shaped support seat (8) is in a horizontal state after resetting. A guide shaft (702) is fixedly provided at the top of the press base (7) for clamping the lower die (302) so that the arc-shaped support seat (8) can rotate. One end of the guide shaft (702) extends into the interior of the lower die (302) and is rotatably connected thereto. The axis of the guide shaft (702) is coaxially arranged with the rotation axis of the lower die (302).

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