A two-way closed forging die set for non-ferrous metal processing

Abstract

The present invention relates to the technical field of metal pressure processing, and in particular to a bidirectional closed forging die frame for non-ferrous metal processing, comprising a fixed base, one side of which is provided with an upper die base, an upper die, a lower die and a lower die base in sequence from top to bottom, and autonomous compensating die clamping components are provided between the upper die base and the upper die, and between the lower die base and the lower die, and linkage locking frames that cooperate with the autonomous compensating die clamping components are provided on both sides of the upper die and the lower die; the present invention utilizes the relative movement of the upper die base and the lower die base, and after completing the die clamping in combination with the autonomous compensating die clamping component, first prompts the linkage locking frame to automatically complete the die clamping process, thereby avoiding the problem of non-ferrous metal being squeezed out from between the dies in the initial stage of extrusion forging; then, during the die clamping forging process, the die clamping force and the extrusion forging force are autonomously compensated, thereby effectively improving the forging quality of the non-ferrous metal; in addition, after the forging is completed, the non-ferrous metal forging in the die cavity can be automatically ejected.

Description

Technical Field

[0001] The invention relates to the technical field of metal pressure processing, in particular to a bidirectional closed forging die frame for nonferrous metal processing. Background Art

[0002] As a precision forging technology, closed forging has rapidly developed in the production and manufacturing of parts in the automotive, aerospace and other industries. The characteristics of this technology are that the mold is first closed and then the punch is used to extrude the blank in the die cavity. The clamping force and extrusion force put the blank into a three-dimensional compressive stress state with good plasticity. Parts with large deformation, complex shapes and high precision can be obtained in one forming process. Compared with the traditional open forging process, most of the cutting process steps are eliminated, the production cost is low and the material utilization rate is high. In the production process of some parts, especially for closed forging of parts with upper and lower symmetry such as tripods and cross shafts, in order to ensure uniform metal flow up and down and obtain better products, a two-way closed forging process is often required.

[0003] For example, in the prior art, there is a bidirectional closed forging die frame with publication number CN204711070U. This forging die frame uses the elastic force of an elastic element combined with the movement of a workbench to force two sets of dies to close. Although the bidirectional closed forging process can be completed, the closing pressure provided by the elastic closing die element is relatively low, and the size range of forgings suitable for production is relatively small. It is difficult to ensure that metal will not be squeezed out from between the dies as the extrusion forging pressure increases during the closing die extrusion forging process.

[0004] In view of the above technical defects, a solution is now proposed. Summary of the Invention

[0005] The purpose of the present invention is to provide a bidirectional closed forging die frame for non-ferrous metal processing to solve the technical defects mentioned above. The present invention utilizes the relative movement of the upper die base and the lower die base, combined with the autonomous compensation type die clamping assembly to complete the die clamping, first prompting the linkage type locking frame to automatically complete the die clamping process, to avoid the problem of non-ferrous metal being squeezed out from between the dies in the early stage of extrusion forging; then in the die clamping forging process, the die clamping force and the extrusion forging force are autonomously compensated, thereby effectively improving the forging quality of non-ferrous metals; in addition, after forging is completed, with the help of the divergent movement of the upper die base and the lower die base, the push plate is prompted to contact the fixed plate, thereby achieving the effect of automatic ejection of the non-ferrous metal forgings in the die cavity.

[0006] The purpose of the present invention can be achieved through the following technical solutions:

[0007] A bidirectional closed forging die set for nonferrous metal processing comprises a fixed base, an upper die base, an upper die, a lower die and a lower die base being arranged on one side of the fixed base in order from top to bottom, an autonomous compensating clamping assembly being arranged between the upper die base and the upper die, and between the lower die base and the lower die, and a linked locking frame cooperating with the autonomous compensating clamping assembly being arranged on both sides of the upper die and the lower die;

[0008] The self-compensating clamping assembly includes a gear, and a tooth plate 1 and a tooth plate 2 located on both sides of the gear and meshing with the gear. The upper die base and the lower die base are both connected to a mounting base rotatably connected to the corresponding gear. The upper die and the lower die are respectively fixedly connected to the corresponding tooth plate 1. The upper die and the lower die are respectively installed with an upper punch and a lower punch, and the upper punch and the lower punch are fixedly connected to the corresponding tooth plate 2 through a connecting block.

[0009] Preferably, a spring is fixedly connected between the upper mold base, the lower mold base and the corresponding tooth plate one, and two groups of sliding rods are connected to the upper mold base and the lower mold base, which are slidably connected to the corresponding tooth plate two. A plurality of telescopic sleeve rods distributed in a rectangular array are fixedly connected between the upper mold base and the upper die, and between the lower mold base and the lower die.

[0010] Preferably, the linkage locking mold frame includes a connecting plate, and a movable plate and a locking mold plate fixedly connected on both sides of the connecting plate, a guide slope is arranged between the connecting plate and the locking mold plate, a trapezoidal slide rail is symmetrically fixedly connected to one side of the movable plate, and a sliding groove is provided on one side of the upper mold base and the lower mold base that is slidably connected to the corresponding trapezoidal slide rail.

[0011] Preferably, an L-shaped linkage plate is fixedly connected to the movable plate, guide pins are symmetrically fixedly connected to the L-shaped linkage plate, and a guide groove matching the guide pin is provided on the second tooth plate.

[0012] Preferably, the guide groove comprises vertical clamping grooves symmetrically provided on both sides of the tooth plate, and an inclined mold opening groove is provided on one side of the vertical clamping groove close to the movable plate.

[0013] Preferably, the bottom of the fixed seat is fixedly connected to a base, and the internal rotation of the fixed seat is connected to a bidirectional screw threadedly connected to the upper mold base and the lower mold base, the fixed seat is bolted to a motor for driving the bidirectional screw to rotate, and the two sides of the fixed seat are symmetrically fixedly connected to guide rods slidingly connected to the upper mold base and the lower mold base.

[0014] Preferably, a push plate is fixedly connected to the second tooth plate located between the lower die base and the lower concave die, a fixed plate is fixedly connected to the fixed base, and a clearance groove for the fixed plate to pass through is opened on the lower die base.

[0015] The present invention also provides a method for using a bidirectional closed forging die frame for nonferrous metal processing, which specifically includes: die closing, automatic die locking, compensating extrusion forging of the punch, and automatic ejection of nonferrous metal forgings.

[0016] The beneficial effects of the present invention are as follows:

[0017] (1) The present invention utilizes the relative movement of the upper die base and the lower die base to first complete the mold closing process between the upper die and the lower die, and then cooperates with the fixation of the position of the upper die and the lower die after the mold closing, and the meshing of the gear and the tooth plate one and the tooth plate two to drive the two sets of tooth plates two to move relative to each other, prompting the two sets of punches to slide on the corresponding dies, and extrude the non-ferrous metal in the die cavity while guiding the guide pin with the guide groove to drive the two sets of linked locking frames to synchronously complete the mold closing process between the upper die and the lower die, thereby avoiding the problem of non-ferrous metal being squeezed out from between the dies during punch extrusion forging, and automatically completing unlocking when the die is opened; and utilizing the continuous diverging movement of the upper die and the lower die to prompt the push plate to contact the fixed plate, so that the lower punch moves upward relative to the lower die, and the non-ferrous metal forging in the die cavity is automatically ejected, thereby improving the convenience of use of the forging die frame;

[0018] (2) The present invention uses the relative movement of the upper die base and the lower die base to promote the punch to perform extrusion forging on non-ferrous metals. As the resistance to the movement of the punch increases, its movement will be temporarily restricted, causing the gear to rotate in the opposite direction, further increasing the clamping force between the dies until the clamping force is greater than the extrusion forging force, which will again promote the relative movement between the punches, thereby realizing autonomous compensation of the clamping force and the extrusion forging force during the clamping forging process, which can effectively improve the forging quality of non-ferrous metals. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present invention will be further described below with reference to the accompanying drawings;

[0020] Figure 1 It is a structural schematic diagram of the present invention;

[0021] Figure 2 It is a structural schematic diagram of the fixing seat of the present invention;

[0022] Figure 3 It is a schematic structural diagram of the upper and lower concave dies of the present invention when the upper and lower dies are opened;

[0023] Figure 4 This is a schematic structural diagram of the present invention when the upper and lower concave molds are locked;

[0024] Figure 5 This is a schematic structural diagram of the self-compensating mold clamping assembly of the present invention;

[0025] Figure 6This is a schematic diagram of the installation of the linkage locking frame of the present invention;

[0026] Figure 7 It is a structural schematic diagram of the linkage type locking frame of the present invention.

[0027] Legend:

[0028] 1. Fixed seat; 11. Upper die seat; 12. Upper die; 13. Lower die; 14. Lower die seat; 15. Upper punch; 16. Lower punch; 17. Bidirectional screw; 18. Motor; 19. Fixed plate;

[0029] 2. Self-compensating mold clamping assembly; 21. Gear; 22. Tooth plate 1; 23. Tooth plate 2; 24. Mounting seat; 25. Spring; 26. Vertical mold clamping groove; 27. Oblique mold opening groove; 28. Push plate;

[0030] 3. Linked locking mold frame; 31. Connecting plate; 32. Movable plate; 33. Locking mold plate; 34. L-shaped linkage plate; 35. Guide pin. DETAILED DESCRIPTION

[0031] The following will provide a clear and complete description of the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0032] Example 1: Please refer to Figure 1-Figure 7 As shown, the problem that the prior art relies solely on the elastic closing mold pressure provided by the elastic element, the mold closing pressure is relatively low and it is difficult to further improve the molding quality of the casting can be solved by the following solution:

[0033] In this embodiment, a bidirectional closed forging die frame for nonferrous metal processing includes a fixed base 1. An upper die base 11, an upper die 12, a lower die 13, and a lower die base 14 are sequentially arranged on one side of the fixed base 1 from top to bottom. An autonomous compensating clamping assembly 2 is arranged between the upper die base 11 and the upper die 12, and between the lower die base 14 and the lower die 13. Compared with the elastic element in the prior art, the autonomous compensating clamping assembly 2 is used to provide greater clamping pressure to the upper die 12 and the lower die 13.

[0034] A linkage clamping frame 3 is provided on both sides of the upper die 12 and the lower die 13, which cooperates with the self-compensating die clamping assembly 2. The linkage clamping frame 3 is used to clamp the upper die 12 and the lower die 13 after the die is clamped, so as to avoid the problem of non-ferrous metal being squeezed out from between the dies during the die clamping extrusion forging process.

[0035] The self-compensating clamping assembly 2 includes a gear 21, and a tooth plate 1 22 and a tooth plate 23 located on both sides of the gear 21 and meshing therewith. The upper die base 11 and the lower die base 14 are both connected to a mounting base 24 rotatably connected to the corresponding gear 21. The upper die 12 and the lower die 13 are respectively fixedly connected to the corresponding tooth plate 1 22. The upper die 12 and the lower die 13 are respectively installed with an upper punch 15 and a lower punch 16, and the upper punch 15 and the lower punch 16 are fixedly connected to the corresponding tooth plate 23 via a connecting block.

[0036] Both the upper die 12 and the lower die 13 are provided with through holes that are compatible with the corresponding punches. One end of the punch extends into the mold cavity through the through hole to perform the casting process of the non-ferrous metal casting. The upper die base 11 and the lower die base 14 move relative to each other, and the gear 21, the tooth plate 1 22 and the tooth plate 2 23 synchronously drive the upper die 12 and the lower die 13 to perform the mold closing process. After the mold is closed, the rotation of the gear 21 realizes the continuous relative movement of the upper punch 15 and the lower punch 16 to complete the extrusion forging process of the non-ferrous metal.

[0037] A spring 25 is fixedly connected between the upper die base 11, the lower die base 14, and the corresponding tooth plate 1 22. Under the compressive elastic force of the spring 25, before the upper die 12 and the lower die 13 come into contact, one side of the tooth plate 23 comes into contact with the corresponding die base, and the distance between the tooth plate 1 22 and the corresponding die base is the farthest. This further drives the upper punch 15 and the lower punch 16 to move effectively after the upper die 12 and the lower die 13 are closed.

[0038] In addition, the upper die base 11 and the lower die base 14 are both connected with two sets of sliding rods that are slidably connected to the corresponding tooth plates 23, which are used to increase the sliding stability of the tooth plates 23. A plurality of telescopic sleeve rods distributed in a rectangular array are fixedly connected between the upper die base 11 and the upper die 12, and between the lower die base 14 and the lower die 13, which are used to increase the relative movement of the upper die base 11 and the lower die base 14, so as to achieve precise docking between the upper die 12 and the lower die 13, thereby improving the casting quality of the casting.

[0039] The linked clamping frame 3 includes a connecting plate 31, and a movable plate 32 and a locking plate 33 fixedly connected on both sides of the connecting plate 31. After the upper die 12 and the lower die 13 are closed, the two sets of connecting plates 31 move relative to each other, so that the movable plate 32 and the locking plate 33 respectively contact the opposite sides of the upper die 12 and the lower die 13, thereby achieving a wrap-around clamping effect and avoiding the problem of non-ferrous metal being squeezed out from between the dies in the early stage of extrusion forging.

[0040] The length of the movable plate 32 is greater than that of the locking plate 33, so that after the locking plate 33 is separated from the corresponding female mold, the movable plate 32 is still connected to the corresponding female mold, realizing the sliding installation of the linked locking mold frame 3. A guiding slope is provided between the connecting plate 31 and the locking plate 33. After the linked locking mold frame 3 completes the mold locking, the guiding slope between the connecting plate 31 and the locking plate 33 can increase the interference force between the upper female mold 12 and the lower female mold 13, thereby facilitating the completion of the engagement of the linked locking mold frame 3 with the two sets of female molds and increasing a certain clamping force.

[0041] A trapezoidal slide rail is symmetrically fixedly connected to one side of the movable plate 32, and a slide groove is provided on one side of the upper mold base 11 and the lower mold base 14, which is slidably connected to the corresponding trapezoidal slide rail. The set trapezoidal slide rail and the matching slide groove increase the connection stability between the upper mold base 11, the lower mold base 14 and the corresponding movable plate 32.

[0042] An L-shaped linkage plate 34 is fixedly connected to the movable plate 32, and a guide pin 35 is symmetrically fixedly connected to the L-shaped linkage plate 34. A guide groove that matches the guide pin 35 is provided on the tooth plate 23. The two groups of tooth plates 23 move relative to each other, prompting the two groups of punches to slide on the corresponding dies, while extruding the non-ferrous metal in the die cavity. While guiding the guide pin 35 with the help of the guide groove, the two groups of linkage locking frames 3 are driven to synchronously complete the locking process between the upper die 12 and the lower die 13, and automatically complete the unlocking process when the die is opened, thereby improving the convenience of use of the forging die frame.

[0043] The guide groove includes vertical mold-locking grooves 26 symmetrically provided on both sides of the second tooth plate 23, and an inclined mold-opening groove 27 is provided on the side of the vertical mold-locking groove 26 close to the movable plate 32. Before the second tooth plate 23 moves, the guide pin 35 is located in the inclined mold-opening groove 27 at one end away from the vertical mold-locking groove 26. As the second tooth plate 23 moves, the guide pin 35 slides in the inclined mold-opening groove 27. The inclined mold-opening groove 27 guides the guide pin 35, thereby driving the L-shaped linkage plate 34 to carry the linkage-type mold-locking frame 3 to move;

[0044] The movable plates 32 and locking plates 33 on both sides of the connecting plate 31 are in contact with the away sides of the two sets of dies respectively, until the guide pin 35 enters the vertical locking groove 26 from the oblique die opening groove 27, completing the locking process between the upper die 12 and the lower die 13, avoiding the relative movement of the upper punch 15 and the lower punch 16 causing the non-ferrous metal to be squeezed out from between the upper die 12 and the lower die 13, and then prompting the guide pin 35 to slide in the vertical locking groove 26 to avoid interference with the continuous movement of the punch.

[0045] The bottom of the fixed base 1 is fixedly connected to a base for providing stability support for the fixed base 1, and the internal rotation of the fixed base 1 is connected to a bidirectional screw rod 17 that is threadedly connected to the upper die base 11 and the lower die base 14. The fixed base 1 is bolted to a motor 18 for driving the bidirectional screw rod 17 to rotate. Guide rods that are slidably connected to the upper die base 11 and the lower die base 14 are symmetrically fixed on both sides of the fixed base 1.

[0046] The nonferrous metal is placed in the die cavity of the lower die 13. The motor 18 drives the bidirectional screw 17 to rotate. Combined with the guide rods on both sides, the bidirectional screw 17 drives the upper die base 11 and the lower die base 14 to move relative to each other stably, thus realizing a bidirectional synchronous closed forging process.

[0047] After the non-ferrous metal forging is completed, the bidirectional screw 17 is driven by the motor 18 to rotate in the opposite direction, so that the upper die base 11 and the lower die base 14 move away from each other. Under the compression force of the spring 25, the upper die 12 and the lower die 13 continue to fit precisely in the initial stage of separation, prompting the gear 21 to rotate synchronously during the movement process, causing the tooth plate 23 to move with the punch close to the die base, and the guide pin 35 enters the oblique die opening groove 27 from the vertical die locking groove 26. The guide pin 35 is guided by the oblique die opening groove 27, prompting the linked die locking frame 3 to move away from each other, automatically completing the unlocking process before die opening, and improving the convenience of use of this forging die frame.

[0048] A push plate 28 is fixedly connected to the tooth plate 23 located between the lower die base 14 and the lower die 13, and a fixed plate 19 is fixedly connected to the fixed base 1. Through the continuous separation movement of the upper die base 11 and the lower die base 14, the push plate 28 on the tooth plate 23 between the lower die base 14 and the lower die 13 is caused to conflict with the fixed plate 19 on the fixed base 1, causing the tooth plate 23 to carry the lower punch 16 to move upward relative to the lower die 13, thereby automatically ejecting the non-ferrous metal forgings in the die cavity. A clearance groove for the fixed plate 19 to pass through is provided on the lower die base 14 to avoid interference with the descending movement of the lower die base 14.

[0049] An upper template and a lower template are respectively installed on the away sides of the upper die 12 and the lower die 13 by bolts. The upper template and the lower template are used to replace the upper die 12 and the lower die 13 and are connected with the corresponding upper die base 11 and the lower die base 14 and the linked locking frame 3. The connection between the upper punch 15 and the lower punch 16 and the tooth plate 23 is plug-in and connected in combination with a limit pin to realize the replacement of different dies and matching punches, thereby realizing the forging processing of different non-ferrous metal castings.

[0050] Example 2: Please refer to Figure 3-Figure 5 As shown in the figure, the problem of further autonomously regulating the mold clamping force according to the squeeze casting pressure can be solved by the following solutions:

[0051] In this embodiment, the self-compensating clamping assembly 2 includes a gear 21, and a tooth plate 1 22 and a tooth plate 23 located on both sides of the gear 21 and meshing therewith. The upper die base 11 and the lower die base 14 are both connected to a mounting base 24 rotatably connected to the corresponding gear 21. The upper die 12 and the lower die 13 are respectively fixedly connected to the corresponding tooth plate 1 22. The upper die 12 and the lower die 13 are respectively installed with an upper punch 15 and a lower punch 16, and the upper punch 15 and the lower punch 16 are fixedly connected to the corresponding tooth plate 23 through a connecting block.

[0052] With the continuous relative movement of the upper die base 11 and the lower die base 14, combined with the fixed position of the upper die 12 and the lower die 13 after the contact between the two, the upper die base 11 and the lower die base 14 compress the corresponding springs 25, and drive the gear 21 to move through the mounting base 24, forcing the gear 21 to rotate. Combined with the engagement of the gear 21 with the tooth plate 1 22 and the tooth plate 2 23, the two sets of tooth plates 23 are driven to move relative to each other, causing the two sets of punches to slide on the corresponding dies, thereby performing extrusion forging processing on the non-ferrous metal;

[0053] As the resistance to relative movement between the upper punch 15 and the lower punch 16 increases, their movement will be temporarily restricted, causing the gear 21 to rotate in the opposite direction, further increasing the clamping force between the dies until the clamping force is greater than the extrusion forging force, which will again promote the relative movement between the punches, thereby realizing autonomous compensation of the clamping force and the extrusion forging force during the clamping forging process, which can effectively improve the forging quality of non-ferrous metals.

[0054] Example 3: Please refer to Figure 1-Figure 7 As shown, the present invention also provides a method for using a bidirectional closed forging die set for non-ferrous metal processing, comprising the following steps:

[0055] Step 1: Closing the die. The specific steps are as follows: Place the non-ferrous metal in the die cavity of the lower die 13. The motor 18 drives the bidirectional screw 17 to rotate. Combined with the guide rods on both sides, the bidirectional screw 17 drives the upper die base 11 and the lower die base 14 to move relative to each other stably. During this process, the upper die 12 and the lower die 13 first contact each other through the tooth plate 22 and the spring 25 to complete the die closing process.

[0056] Step 2: Automatic locking of the die. The specific steps are as follows: With the continuous relative movement of the upper die base 11 and the lower die base 14, combined with the fixed position of the upper die 12 and the lower die 13 after the contact between the two, the upper die base 11 and the lower die base 14 compress the corresponding springs 25, and drive the gear 21 to move through the mounting base 24, forcing the gear 21 to rotate. Combined with the meshing of the gear 21 with the tooth plate 1 22 and the tooth plate 2 23, the two sets of tooth plates 23 are driven to move relative to each other, causing the two sets of punches to slide on the corresponding dies;

[0057] With the help of the movement of the tooth plate 23, the guide pin 35 is prompted to slide in the oblique die opening groove 27. The oblique die opening groove 27 guides the guide pin 35, which drives the L-shaped linkage plate 34 to carry the linkage type clamping frame 3 to move. The movable plates 32 and the locking plate 33 on both sides of the connecting plate 31 are respectively in contact with the away sides of the two sets of dies, and combined with the guide slope, the resistance between the upper die 12 and the lower die 13 is increased until the guide pin 35 enters the vertical clamping groove 26 from the oblique die opening groove 27, completing the clamping process between the upper die 12 and the lower die 13, avoiding the relative movement of the upper punch 15 and the lower punch 16 causing the non-ferrous metal to be squeezed out from between the upper die 12 and the lower die 13, and avoiding interference with the continuous movement of the punch;

[0058] Step 3: Compensation extrusion forging of the punch, the specific steps are as follows: two sets of tooth plates 23 carry the corresponding upper punch 15 and lower punch 16 to move and extend into the die cavity of the upper die 12 and the lower die 13, and perform extrusion forging processing on the non-ferrous metal. As the resistance to the relative movement of the upper punch 15 and the lower punch 16 increases, the movement of the two is temporarily restricted, prompting the gear 21 to rotate in the opposite direction, further increasing the clamping force between the upper die 12 and the lower die 13, until the clamping force is greater than the extrusion forging force, which will push the upper punch 15 and the lower punch 16 to move relative to each other again, so that during the relative movement of the upper die base 11 and the lower die base 14, the clamping force and the extrusion forging force are autonomously compensated, thereby improving the forging quality of the non-ferrous metal;

[0059] Step 4: Automatic ejection of non-ferrous metal forgings. The specific steps are as follows: After the non-ferrous metal is forged, the motor 18 drives the bidirectional screw 17 to rotate in the opposite direction, and the upper die base 11 and the lower die base 14 move away from each other. Under the compression force of the spring 25, the upper die 12 and the lower die 13 continue to fit precisely. The gear 21 rotates synchronously during the movement, prompting the second gear plate 23 to move with the punch close to the die base. The guide pin 35 enters the oblique die opening groove 27 from the vertical die locking groove 26. The guide pin 35 is guided by the oblique die opening groove 27, prompting the linked die locking frame 3 to move away from each other, completing the unlocking.

[0060] Afterwards, through the continuous separation movement of the upper die base 11 and the lower die base 14, the pushing plate 28 on the tooth plate 23 between the lower die base 14 and the lower die 13 comes into contact with the fixed plate 19 on the fixed base 1, causing the tooth plate 23 to carry the lower punch 16 to move upward relative to the lower die 13, and automatically eject the non-ferrous metal forging in the die cavity.

[0061] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A bidirectional closed forging die set for nonferrous metal processing, comprising a fixed seat (1), characterized in that: An upper die base (11), an upper die (12), a lower die (13) and a lower die base (14) are sequentially arranged on one side of the fixed base (1) from top to bottom; an autonomous compensating clamping assembly (2) is arranged between the upper die base (11) and the upper die (12) as well as between the lower die base (14) and the lower die (13); and a linkage locking frame (3) that cooperates with the autonomous compensating clamping assembly (2) is arranged on both sides of the upper die (12) and the lower die (13); The self-compensating clamping assembly (2) includes a gear (21), and a tooth plate 1 (22) and a tooth plate 2 (23) located on both sides of the gear (21) and meshed with the gear plate 2; the upper die base (11) and the lower die base (14) are both connected with a mounting base (24) rotatably connected to the corresponding gear (21); the upper die (12) and the lower die (13) are respectively fixedly connected to the corresponding tooth plate 1 (22); the upper die (12) and the lower die (13) are respectively installed with an upper punch (15) and a lower punch (16), and the upper punch (15) and the lower punch (16) are fixedly connected to the corresponding tooth plate 2 (23) through a connecting block; A spring (25) is fixedly connected between the upper die base (11), the lower die base (14) and the corresponding tooth plate 1 (22), and two groups of sliding rods are connected to the upper die base (11) and the lower die base (14) in a sliding connection with the corresponding tooth plate 2 (23), and a plurality of telescopic sleeve rods distributed in a rectangular array are fixedly connected between the upper die base (11) and the upper die (12) and between the lower die base (14) and the lower die (13); The linkage locking mold frame (3) includes a connecting plate (31), and a movable plate (32) and a locking mold plate (33) respectively fixedly connected on both sides of the connecting plate (31), a guide slope is provided between the connecting plate (31) and the locking mold plate (33), one side of the movable plate (32) is symmetrically fixedly connected to a trapezoidal slide rail, and one side of the upper mold base (11) and the lower mold base (14) are both provided with a slide groove slidably connected to the corresponding trapezoidal slide rail; An L-shaped linkage plate (34) is fixedly connected to the movable plate (32), a guide pin (35) is symmetrically fixedly connected to the L-shaped linkage plate (34), and a guide groove matching the guide pin (35) is provided on the second tooth plate (23).

2. A bidirectional closed forging die set for nonferrous metal processing according to claim 1, characterized in that: The guide groove comprises vertical clamping grooves (26) symmetrically provided on both sides of the second tooth plate (23), and an inclined mold opening groove (27) is provided on one side of the vertical clamping groove (26) close to the movable plate (32).

3. The bidirectional closed forging die set for nonferrous metal processing according to claim 1, characterized in that: The bottom of the fixed seat (1) is fixedly connected to a base, and the interior of the fixed seat (1) is rotatably connected to a bidirectional screw rod (17) threadedly connected to the upper die seat (11) and the lower die seat (14). The fixed seat (1) is bolted to a motor (18) for driving the bidirectional screw rod (17) to rotate. The two sides of the fixed seat (1) are symmetrically fixedly connected to guide rods slidably connected to the upper die seat (11) and the lower die seat (14).

4. The bidirectional closed forging die set for nonferrous metal processing according to claim 1, characterized in that: A push plate (28) is fixedly connected to the tooth plate 2 (23) located between the lower die base (14) and the lower concave die (13), a fixed plate (19) is fixedly connected to the fixed base (1), and a clearance groove for the fixed plate (19) to pass through is provided on the lower die base (14).

5. A method for using a bidirectional closed forging die set for non-ferrous metal processing, used for a bidirectional closed forging die set for non-ferrous metal processing according to any one of claims 1 to 4, characterized in that: The specific contents include: die closing, automatic die locking, compensating extrusion forging of punches and automatic ejection of non-ferrous metal forgings.

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