Bidirectional blocking type forging die frame for nonferrous metal processing

Abstract

The invention relates to the technical field of metal pressure processing, in particular to a bidirectional closed forging die frame for nonferrous metal processing, which comprises a fixed seat, and an upper die holder, an upper female die, a lower female die and a lower die holder are sequentially arranged on one side of the fixed seat from top to bottom; autonomous compensation type die assembly assemblies are arranged between the upper die base and the upper female die and between the lower die base and the lower female die. Linkage type die locking frames matched with the autonomous compensation type die assembly assemblies are arranged on the two sides of the upper female die and the two sides of the lower female die. According to the invention, the relative movement of the upper die holder and the lower die holder is combined with the self-compensation type die assembly to complete die assembly of the female die, and then the linkage type die locking frame is promoted to complete die locking treatment automatically, so that the problem that non-ferrous metals are extruded from the female die at the initial stage of extrusion forging is avoided; in the die assembly forging process, the die assembly acting force and the extrusion forging force are automatically compensated, and therefore the forging forming quality of the non-ferrous metal is effectively improved; in addition, after forging is completed, the effect of automatically ejecting out the non-ferrous metal forgings in the die cavity can be achieved.

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 developed rapidly 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. The blank is placed in a three-dimensional compressive stress state with good plasticity through the clamping force and the extrusion force. Parts with large deformation, complex shape and high precision can be obtained in one forming. Compared with the traditional open forging process, most of the cutting processes are omitted, the production cost is low and the material utilization rate is high. In the production process of some parts, especially for the closed forging of upper and lower symmetrical parts 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 a publication number of CN204711070U. The forging die frame moves the workbench and combines the elastic force of the elastic element to force two sets of dies to close the die. Although the bidirectional closed forging process can be completed, the closing die pressure is relatively small, and the size range of forgings suitable for production is relatively small. It is difficult to ensure that during the closing die extrusion forging process, as the extrusion forging pressure increases, the problem of metal being squeezed out from between the dies will not occur.

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

[0005] The object 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 compensating die clamping assembly to complete the die clamping, and first prompts the linked die 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, the push plate is prompted to contact the fixed plate with the help of the divergent movement of the upper die base and the lower die base, 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 frame for nonferrous metal processing comprises a fixed seat, an upper die seat, an upper die, a lower die and a lower die seat are sequentially arranged on one side of the fixed seat from top to bottom, an autonomous compensating clamping assembly is arranged between the upper die seat and the upper die, and between the lower die seat and the lower die, and a linkage locking frame matched with the autonomous compensating clamping assembly is 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 with mounting seats rotatably connected to the corresponding gears. 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 die base, the lower die base and the corresponding tooth plate one, and two groups of sliding rods slidably connected to the corresponding tooth plate two are connected to the upper die base and the lower die base, and a plurality of telescopic sleeve rods distributed in a rectangular array are fixedly connected between the upper die base and the upper die, and between the lower die base and the lower die.

[0010] Preferably, the linked locking mold frame includes a connecting plate, and a movable plate and a locking mold plate which are fixedly connected on both sides of the connecting plate, a guide ramp 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 slide groove which is slidably connected to the corresponding trapezoidal slide rail is provided on one side of the upper mold base and the lower mold base.

[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 opened on both sides of the second tooth plate, and an inclined opening groove is opened 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 inside of the fixed seat is rotatably connected to a bidirectional screw rod threadedly connected to the upper die seat and the lower die seat, the fixed seat is bolted to a motor for driving the bidirectional screw rod to rotate, and the two sides of the fixed seat are symmetrically fixedly connected to guide rods slidably connected to the upper die seat and the lower die seat.

[0014] Preferably, a push plate is fixedly connected to the second tooth plate 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 of the concave die, automatic die locking of the concave die, compensatory 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 fixing of the position of the upper die and the lower die after the mold closing, and the meshing of the gear with the tooth plate one and the tooth plate two, to drive the two sets of tooth plates two to move relative to each other, so that the two sets of punches slide on the corresponding dies, and extrude the non-ferrous metal in the die cavity. At the same time, with the help of the guide groove to guide the guide pin, the two sets of linkage type locking frames are driven 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 unlocking when the die is opened; and the continuous diverging movement of the upper die and the lower die is utilized to promote the contact between the push plate and 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 utilizes the relative movement of the upper die base and the lower die base to cause the punch to perform extrusion forging on the non-ferrous metal. 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. This will again promote the relative movement between the punches, thereby achieving autonomous compensation of the clamping force and the extrusion forging force during the clamping forging process, which can effectively improve the forging quality of the non-ferrous metal. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0020] Figure 1 It is a schematic diagram of the structure 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 diagram of the structure of the upper concave die and the lower concave die when the die is opened;

[0023] Figure 4 It is a schematic diagram of the structure of the upper concave mold and the lower concave mold when the upper mold and the lower mold are locked;

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

[0025] Figure 6It is a schematic diagram of the installation of the linkage type 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 locking 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 be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are 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 elastic occlusive mold clamping pressure provided by the elastic element in the prior art is relatively small and it is difficult to further improve the molding quality of the casting can be solved by the following scheme:

[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, and 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 a greater clamping pressure to the upper die 12 and the lower die 13;

[0034] A linkage-type locking frame 3 matched with the self-compensating clamping assembly 2 is provided on both sides of the upper concave die 12 and the lower concave die 13. The linkage-type locking frame 3 is used to perform a clamping process on the upper concave die 12 and the lower concave die 13 after the clamping, so as to avoid the problem of non-ferrous metal being squeezed out from between the concave dies during the 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 with a mounting seat 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;

[0036] The upper die 12 and the lower die 13 are both provided with through holes adapted to the corresponding punches, and 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 closing process, 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 seat 11, the lower die seat 14 and the corresponding tooth plate 1 22. Under the compressive elastic force of the spring 25, one side of the tooth plate 23 is in contact with the corresponding die seat before the upper die 12 and the lower die 13 come into contact. The distance between the tooth plate 1 22 and the corresponding die seat is the farthest, thereby driving 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, two sets of sliding rods slidably connected to the corresponding tooth plates 23 are connected to the upper die base 11 and the lower die base 14, 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 linkage clamping die frame 3 includes a connecting plate 31, and a movable plate 32 and a locking die plate 33 respectively fixedly connected on both sides of the connecting plate 31. After the upper die 12 and the lower die 13 are clamped, the two sets of connecting plates 31 move relative to each other, so that the movable plate 32 and the locking die plate 33 are respectively in contact with the opposite sides of the corresponding upper die 12 and the lower die 13, so as to achieve the effect of wrapped clamping die, and avoid 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 concave mold, the movable plate 32 is still connected to the corresponding concave mold, so as to realize the sliding installation of the linkage locking mold frame 3. A guide slope is arranged between the connecting plate 31 and the locking plate 33. After the linkage locking mold frame 3 completes the mold locking, the guiding slope between the connecting plate 31 and the locking plate 33 can increase the resistance force between the upper concave mold 12 and the lower concave mold 13, so as to facilitate the linkage locking mold frame 3 to complete the engagement with the two sets of concave molds, and increase 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 for sliding connection with 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 matching 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 opened on both sides of the tooth plate 23, and an inclined mold-opening groove 27 is opened on one side of the vertical mold-locking groove 26 close to the movable plate 32. Before the tooth plate 23 moves, the guide pin 35 is located at one end of the inclined mold-opening groove 27 away from the vertical mold-locking groove 26. With the movement of the tooth plate 23, the guide pin 35 is prompted to slide in the inclined mold-opening groove 27. Through the guidance of the guide pin 35 by the inclined mold-opening groove 27, the L-shaped linkage plate 34 is driven 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 opposite sides of the two groups of dies respectively, until the guide pin 35 enters the vertical locking die 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 to cause 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 die groove 26 to avoid interference with the continuous movement of the punch.

[0045] The bottom of the fixed seat 1 is fixedly connected with a base for providing stability support for the fixed seat 1, and the inside of the fixed seat 1 is rotatably connected with a bidirectional screw rod 17 threadedly connected with the upper die seat 11 and the lower die seat 14, and the fixed seat 1 is bolted with a motor 18 for driving the bidirectional screw rod 17 to rotate, and the two sides of the fixed seat 1 are symmetrically fixedly connected with guide rods slidably connected with the upper die seat 11 and the lower die seat 14;

[0046] The nonferrous metal is placed in the die cavity on the lower concave die 13, and 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, thereby realizing bidirectional synchronous closed forging processing;

[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 closer to the die base with the punch, 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 linkage 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 the 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 collide with the fixed plate 19 on the fixed base 1, so that the tooth plate 23 carrying the lower punch 16 moves upward relative to the lower die 13, thereby automatically ejecting the non-ferrous metal forging in the die cavity. A clearance groove for the fixed plate 19 to penetrate 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 mold 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 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 with a mounting seat 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 spring 25, and drive the gear 21 to move through the mounting seat 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, drive the two sets of tooth plates 2 23 to move relative to each other, and cause the two sets of punches to slide on the corresponding dies, so as to perform extrusion forging treatment 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 achieving 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 frame for non-ferrous metal processing, comprising the following steps:

[0055] Step 1: Closing of the concave die. The specific steps are as follows: non-ferrous metal is placed in the die cavity on the lower concave 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 concave die 12 and the lower concave die 13 first contact with the tooth plate 1 22 and the spring 25 to complete the closing process.

[0056] Step 2: Automatic die 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 spring 25, and drive the gear 21 to move through the mounting seat 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, drive the two sets of tooth plates 2 23 to move relative to each other, and cause the two sets of punches to slide on the corresponding die;

[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 guide pin 35 is guided by the oblique die opening groove 27, and the L-shaped linkage plate 34 is driven to carry the linkage type locking mold 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 opposite sides of the two groups of concave molds, 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 locking mold groove 26 from the oblique die opening groove 27, and the locking process between the upper die 12 and the lower die 13 is completed, so as to avoid 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 to avoid interference with the continuous movement of the punch;

[0058] Step 3: Punch compensation extrusion forging, the specific steps are as follows: two sets of toothed 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 on the non-ferrous metal. As the relative movement resistance 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, the upper die base 11 and the lower die base 14 move away from each other, and under the compression elastic force of the spring 25, the upper die 12 and the lower die 13 continue to fit precisely, and the gear 21 rotates synchronously during the movement process, prompting the tooth plate 23 to carry the punch to move close to the die base, and the guide pin 35 enters the oblique die opening groove 27 from the vertical die locking groove 26, and the guide pin 35 is guided by the oblique die opening groove 27, so that the linkage die locking frame 3 moves away from each other to complete 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 is caused to come into contact with the fixed plate 19 on the fixed base 1, causing the tooth plate 23 carrying the lower punch 16 to move upward relative to the lower die 13, and automatically ejecting the non-ferrous metal forging in the die cavity.

[0061] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope 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 seat (11), an upper die (12), a lower die (13) and a lower die seat (14) are sequentially arranged on one side of the fixed seat (1) from top to bottom; an autonomous compensating clamping assembly (2) is arranged between the upper die seat (11) and the upper die (12) and between the lower die seat (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) comprises a gear (21), and a tooth plate one (22) and a tooth plate two (23) located on both sides of the gear (21) and meshing with the gear plate; the upper die seat (11) and the lower die seat (14) are both connected with a mounting seat (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 one (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 two (23) via a connecting block.

2. A bidirectional closed forging die set for nonferrous metal processing according to claim 1, characterized in that: A spring (25) is fixedly connected between the upper die base (11) and the lower die base (14) and the corresponding tooth plate one (22), and two groups of sliding rods slidably connected to the corresponding tooth plate two (23) are connected to the upper die base (11) and the lower die base (14), 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).

3. The bidirectional closed forging die set for nonferrous metal processing according to claim 1, characterized in that: The linkage type locking mold frame (3) comprises 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 guiding slope is arranged between the connecting plate (31) and the locking mold plate (33), one side of the movable plate (32) is symmetrically fixedly connected with 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.

4. A bidirectional closed forging die set for nonferrous metal processing according to claim 3, characterized in that: 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).

5. A bidirectional closed forging die set for nonferrous metal processing according to claim 4, characterized in that: The guide groove comprises a vertical mold locking groove (26) symmetrically arranged on both sides of the second tooth plate (23), and an inclined mold opening groove (27) is arranged on one side of the vertical mold locking groove (26) close to the movable plate (32).

6. 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 an upper die seat (11) and a lower die seat (14); a motor (18) for driving the bidirectional screw rod (17) to rotate is bolted to the fixed seat (1); and guide rods slidably connected to the upper die seat (11) and the lower die seat (14) are symmetrically fixedly connected to the two sides of the fixed seat (1).

7. 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 second tooth plate (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).

8. A method for using a bidirectional closed forging die frame for non-ferrous metal processing, used for a bidirectional closed forging die frame for non-ferrous metal processing as claimed in any one of claims 1 to 7, 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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