Trimming die frame of forge piece

Abstract

The utility model belongs to the technical field of forging trimming, and particularly relates to a forging trimming die frame, an upper die assembly comprises an upper fixing plate and an upper punch, and the upper punch is arranged on the upper fixing plate; the lower die assembly comprises a lower die guide column, a lower punch, a lower die knife edge and a lower supporting plate, the upper fixing plate is connected with the lower die guide column in a sliding mode, the lower punch is arranged on the lower die knife edge and right faces the lower portion of the upper punch, a forging piece to be trimmed is arranged between the upper punch and the lower punch, and a flash part is arranged on the lower die knife edge. The edge pressing assembly is arranged on the periphery of the upper punch, the upper punch downwards presses the lower die knife edge to cut off the flash, the elastic pieces abut against the cut-off flash part after the upper punch ascends, the flash is cut off, the flash is cut off, the flash is cut off, the flash is cut off, the flash is cut off, and the edge pressing assembly is arranged on the periphery of the upper punch. And the flash part is still pressed on the knife edge of the lower die, so that the phenomenon that the flash sleeves the upper punch and moves along with the upper punch is avoided, and the product part and the flash part which are trimmed can be taken away subsequently.

Description

Technical Field

[0001] The utility model belongs to the technical field of forging trimming, and in particular relates to a forging trimming die frame. Background Art

[0002] Forgings refer to workpieces or blanks obtained by forging and deforming metal billets. The forging process of forgings includes cutting → heating → pre-forging, final forging → trimming.

[0003] A stamping die is a special process equipment used to process materials into parts during cold stamping. The die installed on the press is used to apply pressure to the material to separate or plastically deform it, thereby producing the corresponding parts. In industrial production, punching and trimming are two common processes for stamping dies, which are usually used for finishing of forgings to improve product quality.

[0004] The existing trimming die is generally designed so that the upper trimming die applies pressure to the forging so that the flash around the forging product is separated from it. However, the cut-off flash will be mounted on the upper trimming die and move with the upper trimming die. It is difficult to remove the flash from the upper trimming die subsequently, which not only affects the trimming accuracy of the next forging, but also facilitates the subsequent cleaning of the trimming die for the forging, affecting the subsequent working effect of the trimming die. Therefore, further improvements are necessary. Utility Model Content

[0005] In view of this, in order to solve the problems existing in the prior art, the purpose of the utility model is to provide a trimming die frame for forgings, which has the effect of preventing the flash from being sleeved on the upper punch and moving with the upper punch, which is conducive to the subsequent removal of the product part with completed trimming and the removal of the cut-off flash part.

[0006] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0007] A trimming die frame for forgings, comprising: an upper die assembly, a lower die assembly and a trimming assembly;

[0008] The upper die assembly comprises an upper fixed plate and an upper punch, wherein the upper punch is arranged on the upper fixed plate;

[0009] The lower die assembly comprises a lower die guide pin, a lower punch, a lower die blade and a lower support plate, the upper fixing plate is slidably connected to the lower die guide pin, the lower die guide pin is arranged on the lower die blade, a die cavity is provided in the lower die blade, the lower punch is arranged in the die cavity and is arranged directly below the upper punch, the forging to be trimmed comprises a product part and a flash part, the product part is arranged on the lower punch and is located between the upper punch and the lower punch, and the flash part is arranged on the lower die blade;

[0010] The edge pressing assembly is arranged on the upper fixed plate, and the edge pressing assembly includes a plurality of elastic members, and the plurality of elastic members are arranged on the periphery of the upper punch and facing the flash portion, and the plurality of elastic members are used to clamp the flash portion after trimming.

[0011] The specific technical effect is: the pressing assembly is arranged opposite to the flash part, and the upper punch presses down so that the flash is cut off by the blade of the lower die and separated from the product part; when the upper punch rises, the elastic part rests on the cut-off flash part, and the flash part is still pressed on the blade of the lower die, so that the cut-off flash part and the upper punch can be staggered in space, thereby preventing the flash from being covered on the upper punch and moving with the upper punch, and better proceeding to the next step of removing the flash part and the product part.

[0012] Furthermore, the edge clamping assembly also includes a plurality of spring fixing columns, each of which is installed on the upper fixing plate, and the upper end of each elastic member is installed on a spring fixing column, and the elastic member is a spring whose diameter gradually increases in the direction approaching the lower die edge.

[0013] The specific technical effect is: a spring fixing column is set on the upper fixed plate, which is conducive to the installation of the elastic part and also plays a role of limiting and supporting. Even if the elastic part is compressed by force, there is still a gap between the upper fixed plate and the lower die edge, which avoids the upper fixed plate from directly contacting the lower die edge after being pressed down; the diameter of the spring gradually increases in the direction close to the lower die edge, which can increase the contact area between the lower end of the spring and the flash part, ensuring that the flash part is better pressed against the lower die edge.

[0014] Furthermore, the lower die cutting edge includes a blade portion and a support portion, the blade portion is arranged on the support portion and faces the connection between the product portion and the flash portion, and the lower end of the lower die guide column is arranged on the support portion.

[0015] Furthermore, it also includes: a ejector assembly, which includes at least one first ejector rod and at least one second ejector rod, the first ejector rod passes through the lower punch and can be moved up and down to abut against the product part, and the second ejector rod passes through the lower die edge and can be moved up and down to abut against the flash part.

[0016] The specific technical effect is: the design of the first ejector pin facilitates the ejection of the product part from the lower punch after the upper punch moves up, which is conducive to the subsequent removal of the product part with the trimmed edges; the design of the second ejector pin facilitates the ejection of the flash part from the lower die edge after the upper punch moves up, which is conducive to the subsequent removal of the cut flash part.

[0017] Furthermore, the ejection assembly also includes: at least one first hydraulic cylinder and at least one second hydraulic cylinder, the first hydraulic cylinder is arranged below the lower punch, the second hydraulic cylinder is arranged below the lower die blade, each of the first ejector rods is slidably connected to one of the first hydraulic cylinders, and each of the second ejector rods is slidably connected to one of the second hydraulic cylinders.

[0018] Furthermore, it also includes: a reset component, which is arranged below the lower punch and the lower die cutting edge, and the reset component includes a reset top plate, a reset spring and a reset base column connected in sequence, the reset top plate is against the lower end of the lower punch, the first push rod sequentially penetrates the reset top plate and the lower punch and can be moved up and down to press against the product part, and the second push rod sequentially penetrates the reset top plate and the lower die cutting edge and can be moved up and down to press against the flash part.

[0019] The specific technical effect is: the reset assembly is arranged below the lower punch. When the upper punch is pressed downward, the lower punch will also move downward under pressure, thereby driving the reset top plate to move downward. At this time, the reset spring is in a compressed state. When the upper punch rises, the pressure on the lower punch disappears, the reset spring resets, the reset top plate rises, and then drives the lower punch to rise to complete the reset.

[0020] Furthermore, the lower mold assembly also includes a lower fixing plate and a lower bottom plate, the lower fixing plate is arranged on the lower bottom plate, and the reset base column and the lower support plate are both arranged on the lower fixing plate.

[0021] The specific technical effect is: it is convenient to fix the reset base column and the lower support plate on the lower fixed plate.

[0022] Furthermore, it also includes: a working base, and the lower base plate is arranged on the working base.

[0023] Furthermore, the upper die assembly also includes: an upper top plate, the upper end of the lower die guide pillar is connected to the upper top plate, and the lower end of the lower die guide pillar is connected to the lower die blade.

[0024] The specific technical effect is: the upper top plate is arranged to facilitate the fixing of the lower die guide pin.

[0025] Further, the shape of the lower end of the upper punch matches the shape of the upper end of the product portion, and the shape of the upper end of the lower punch matches the shape of the lower end of the product portion.

[0026] The specific technical effect is: the design that the lower end shape of the upper punch and the upper end shape of the lower punch match the shape of the product part is adopted to prevent the product part from being deformed after the upper punch is pressed down.

[0027] The beneficial effects of the utility model are:

[0028] By arranging a pressing assembly on the periphery of the upper punch, the upper punch presses downward so that the flash is cut off by the blade of the lower die and separated from the product part. When the upper punch rises, the elastic part presses against the cut-off flash part, and the flash part is still pressed against the blade of the lower die, avoiding the flash from being covered by the upper punch and moving with the upper punch, which is conducive to the subsequent removal of the product part that has completed the trimming and the removal of the cut flash part, thereby avoiding the cut flash from affecting the work of the subsequent trimming die.

[0029] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, preferred embodiments are given below and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0031] Figure 1 It is a structural schematic diagram of a trimming die frame of a forging of the utility model;

[0032] Figure 2 It is a front view of a trimming die set for a forging of the utility model;

[0033] Figure 3 yes Figure 2 Sectional view of AA in the middle;

[0034] Figure 4 yes Figure 2 Cross-sectional view of the middle BB;

[0035] Figure 5 It is a structural exploded diagram of the upper mold assembly of the utility model;

[0036] Figure 6 It is a structural explosion diagram of the lower mold assembly of the utility model.

[0037] In the figure:

[0038] 1. Upper die assembly; 2. Lower die assembly; 3. Bending assembly; 4. Upper fixed plate; 5. Upper punch; 6. Lower die guide column; 7. Lower punch; 8. Lower die blade; 9. Lower support plate; 10. Die cavity; 11. Product part; 12. Flash part; 13. Elastic part; 14. Spring fixing column; 15. Ejector assembly; 16. First ejector rod; 17. Second ejector rod; 18. First hydraulic cylinder; 19. Second hydraulic cylinder; 20. Reset assembly; 21. Reset ejector plate; 22. Reset spring; 23. Reset base column; 24. Lower fixed plate; 25. Lower base plate; 26. Working base; 27. Upper ejector plate; 28. Forging part. DETAILED DESCRIPTION

[0039] In order to make the purpose, technical solution and advantages of the embodiments of the utility model clearer, the technical solution of the utility model will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0040] like Figures 1 to 6 As shown, a trimming die frame for forgings, including: an upper die assembly 1, a lower die assembly 2 and a blank holding assembly 3;

[0041] The upper die assembly 1 includes an upper fixed plate 4 and an upper punch 5, and the upper punch 5 is arranged on the upper fixed plate 4;

[0042] The lower die assembly 2 includes a lower die guide pin 6, a lower punch 7, a lower die blade 8 and a lower support plate 9. The upper fixed plate 4 is slidably connected to the lower die guide pin 6. The lower die guide pin 6 is arranged on the lower die blade 8. A die cavity 10 is provided in the lower die blade 8. The lower punch 7 is arranged in the die cavity 10 and is arranged directly below the upper punch 5. The forged piece 28 to be trimmed includes a product portion 11 and a flash portion 12. The product portion 11 is arranged on the lower punch 7 and is located between the upper punch 5 and the lower punch 7. The flash portion 12 is arranged on the lower die blade 8.

[0043] The edge clamping assembly 3 is arranged on the upper fixed plate 4, and the edge clamping assembly 3 includes a plurality of elastic members 13, which are arranged on the periphery of the upper punch 5 and face the flash portion 12, and are used to clamp the flash portion 12 after trimming.

[0044] It should be noted that: the pressing assembly 3 is arranged opposite to the flash part 12, and the upper punch 5 presses down so that the flash is cut off by the lower die blade 8 and separated from the product part 11. When the upper punch 5 rises, the elastic member 13 rests on the cut-off flash part 12, and the flash part 12 is still pressed against the lower die blade 8. In this way, the cut-off flash part 12 and the upper punch 5 can be staggered in space, thereby preventing the flash from being covered on the upper punch 5 and moving with the upper punch 5, and better proceeding to the next step of removing the flash part 12 and the product part 11.

[0045] The edge clamping assembly 3 also includes a plurality of spring fixing columns 14, each of which is mounted on the upper fixing plate 4, and the upper end of each elastic member 13 is mounted on a spring fixing column 14, and the elastic member 13 is a spring whose diameter gradually increases in the direction approaching the lower die edge 8.

[0046] It should be noted that: a spring fixing column 14 is arranged on the upper fixing plate 4, which is convenient for the installation of the elastic member 13 and also plays a role of limiting and supporting. Even after the elastic member 13 is compressed, there is still a gap between the upper fixing plate 4 and the lower die cutting edge 8, so as to avoid direct contact between the upper fixing plate 4 and the lower die cutting edge 8 after being pressed down; the diameter of the spring gradually increases in the direction approaching the lower die cutting edge 8, so as to increase the contact area between the lower end of the spring and the flash part 12, and ensure that the flash part 12 is better pressed against the lower die cutting edge 8.

[0047] The lower die cutting edge 8 includes a blade portion and a support portion. The blade portion is arranged on the support portion and faces the connection between the product portion 11 and the flash portion 12. The lower end of the lower die guide column 6 is arranged on the support portion.

[0048] It also includes: a ejector assembly 15, which includes at least one first ejector rod 16 and at least one second ejector rod 17. The first ejector rod 16 penetrates the lower punch 7 and can be moved up and down to abut against the product part 11, and the second ejector rod 17 penetrates the lower die edge 8 and can be moved up and down to abut against the flash part 12.

[0049] It should be noted that the design of the first ejector pin 16 facilitates the ejection of the product portion 11 from the lower punch 7 after the upper punch 5 moves upward, which is conducive to the subsequent removal of the product portion 11 that has completed trimming. The design of the second ejector pin 17 facilitates the ejection of the flash portion 12 from the lower die blade 8 after the upper punch 5 moves upward, which is conducive to the subsequent removal of the cut flash portion 12.

[0050] The ejection assembly 15 also includes: at least one first hydraulic cylinder 18 and at least one second hydraulic cylinder 19, the first hydraulic cylinder 18 is arranged below the lower punch 7, and the second hydraulic cylinder 19 is arranged below the lower die edge 8, each first ejector rod 16 is slidably connected to a first hydraulic cylinder 18, and each second ejector rod 17 is slidably connected to a second hydraulic cylinder 19.

[0051] It should be noted that: there are two first hydraulic cylinders 18, which are respectively arranged opposite to the two ends of the product part 11; there are four second hydraulic cylinders 19, and the four second hydraulic cylinders 19 are respectively arranged opposite to the circle of the flash part 12. When the upper punch 5 rises, the two first hydraulic cylinders 18 control the first push rod 16 to lift up the two ends of the product part 11 that has completed the trimming, so as to facilitate the subsequent manual or automatic claws to take away the product part 11 that has completed the trimming; when the upper punch 5 rises, the four second hydraulic cylinders 19 control the second push rod 17 to lift up the four sides of the flash part 12 that has been cut off, so as to facilitate the subsequent manual or automatic claws to take away the flash part 12 that has been cut off.

[0052] It also includes: a reset component 20, which is arranged below the lower punch 7 and the lower die cutting edge 8. The reset component 20 includes a reset top plate 21, a reset spring 22 and a reset base column 23 connected in sequence. The reset top plate 21 is against the lower end of the lower punch 7. The first push rod 16 passes through the reset top plate 21 and the lower punch 7 in sequence and can be moved up and down to the product part 11. The second push rod 17 passes through the reset top plate 21 and the lower die cutting edge 8 in sequence and can be moved up and down to the flash part 12.

[0053] It should be noted that the reset assembly 20 is arranged below the lower punch 7. When the upper punch 5 is pressed downward, the lower punch 7 will also move downward under the pressure, thereby driving the reset top plate 21 to move downward. At this time, the reset spring 22 is in a compressed state. When the upper punch 5 rises, the pressure on the lower punch 7 disappears, the reset spring 22 is reset, and the reset top plate 21 rises, thereby driving the lower punch 7 to rise to complete the reset.

[0054] Two first through holes are provided in the middle of the reset top plate 21 for the first push rod 16 to pass through, and second through holes are provided on the four sides of the reset top plate 21 for the second push rod 17 to pass through.

[0055] The lower mold assembly 2 further includes a lower fixing plate 24 and a lower bottom plate 25 . The lower fixing plate 24 is disposed on the lower bottom plate 25 . The reset base column 23 and the lower support plate 9 are both disposed on the lower fixing plate 24 .

[0056] It should be noted that: it is convenient to fix the reset base column 23 and the lower support plate 9 on the lower fixed plate 24.

[0057] A first mounting hole is provided on the lower fixing plate 24, which is convenient for installing the lower support plate 9 on the lower fixing plate 24 by screws; a first mounting groove is provided on the lower fixing plate 24, which is convenient for installing the reset base column 23 in the first mounting groove; a second mounting groove is provided on the lower fixing plate 24, which is convenient for installing the first hydraulic cylinder 18 in the second mounting groove; a third mounting groove is provided on the lower fixing plate 24, which is convenient for installing the second hydraulic cylinder 19 in the third mounting groove.

[0058] It also includes a working base 26 , and the lower base plate 25 is arranged on the working base 26 .

[0059] The upper die assembly 1 further includes an upper top plate 27 , the upper end of the lower die guide pin 6 is connected to the upper top plate 27 , and the lower end of the lower die guide pin 6 is connected to the lower die blade 8 .

[0060] It should be noted that the upper top plate 27 is provided to facilitate fixing the lower die guide pillar 6 , and the lower die guide pillar 6 is supported by the upper top plate 27 and the lower die cutting edge 8 , so that the upper fixing plate 4 can move on the lower die guide pillar 6 .

[0061] The shape of the lower end of the upper punch 5 matches the shape of the upper end of the product portion 11 , and the shape of the upper end of the lower punch 7 matches the shape of the lower end of the product portion 11 .

[0062] It should be noted that the shape of the lower end of the upper punch 5 and the shape of the upper end of the lower punch 7 are designed to match the shape of the product part 11 to prevent the product part 11 from being deformed after the upper punch 5 is pressed down.

[0063] The specific working process of the utility model is as follows:

[0064] The forged piece 28 to be trimmed is placed on the lower punch 7, and the upper fixed plate 4 is controlled to move downward, thereby driving the upper punch 5 to punch downward. At this time, the elastic member 13 presses against the flash portion 12, and the lower punch 7 is subjected to the pressure of the upper punch 5 and moves downward with the forged piece 28 to be trimmed in the die cavity 10 of the lower die blade 8, thereby driving the reset top plate 21 to move downward. At this time, the reset spring 22 is in a compressed state, and the lower die blade 8 cuts off the flash of the forged piece 28 around the circle; after the flash is cut off, the upper fixed plate 4 is controlled to move upward, thereby driving the upper punch 5 to move upward. At this time, the elastic member 13 is still pressed against the cut flash portion 12 due to the elastic force. 2, to prevent the cut-off flash portion 12 from being sleeved on the upper punch 5 and moving with the upper punch 5, and at the same time, the pressure on the lower punch 7 disappears, the reset spring 22 is reset, the reset top plate 21 rises, and then drives the lower punch 7 to rise and complete the reset; then the second hydraulic cylinder 19 controls the second push rod 17 to move upward to lift up the surrounding of the cut-off flash portion 12, and the manual or automatic clamping claw takes away the cut-off flash portion 12; then the first hydraulic cylinder 18 controls the first push rod 16 to lift up the two ends of the product portion 11 that has completed the trimming, and the manual or automatic clamping claw takes away the product portion 11 that has completed the trimming, completing the entire trimming process.

[0065] In summary, the beneficial effects of the utility model are:

[0066] By arranging the edge holding assembly 3 on the periphery of the upper punch 5, the upper punch 5 is pressed downward so that the flash is cut off by the lower die blade 8 and separated from the product part 11. When the upper punch 5 rises, the elastic member 13 abuts against the cut flash part 12, and the flash part 12 is still pressed on the lower die blade 8, to prevent the flash from being sleeved on the upper punch 5 and moving with the upper punch 5, which is conducive to the subsequent removal of the product part 11 that has completed the trimming and the removal of the cut flash part 12, thereby preventing the cut flash from affecting the work of the subsequent trimming mold.

[0067] The various devices selected in this application are all universal standard parts or parts known to those skilled in the art, and their structures and principles can be known to those skilled in the art through technical manuals or conventional experimental methods.

[0068] In the description of the embodiments of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" 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 it can be indirectly connected through an intermediate medium, or it can be the internal communication of 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.

[0069] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are 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, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0070] Based on the above ideal embodiments of the utility model, the relevant staff can make various changes and modifications without deviating from the technical concept of the utility model through the above description. The technical scope of the utility model is not limited to the content of the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A trimming die set for forgings, characterized in that: include: An upper die assembly (1), a lower die assembly (2) and a blank holder assembly (3); The upper die assembly (1) comprises an upper fixing plate (4) and an upper punch (5), wherein the upper punch (5) is arranged on the upper fixing plate (4); The lower die assembly (2) comprises a lower die guide column (6), a lower punch (7), a lower die blade (8) and a lower support plate (9); the upper fixed plate (4) is slidably connected to the lower die guide column (6); the lower die guide column (6) is arranged on the lower die blade (8); a die cavity (10) is provided in the lower die blade (8); the lower punch (7) is arranged in the die cavity (10) and is arranged directly below the upper punch (5); the forged part (28) to be trimmed comprises a product part (11) and a flash part (12); the product part (11) is arranged on the lower punch (7) and is located between the upper punch (5) and the lower punch (7); the flash part (12) is arranged on the lower die blade (8); The edge pressing assembly (3) is arranged on the upper fixed plate (4), and the edge pressing assembly (3) includes a plurality of elastic members (13). The plurality of elastic members (13) are arranged on the periphery of the upper punch (5) and face the flash portion (12). The plurality of elastic members (13) are used to clamp the flash portion (12) after trimming.

2. A forging trimming die set as claimed in claim 1, characterized in that: The edge pressing assembly (3) also includes a plurality of spring fixing columns (14), each of which is mounted on the upper fixing plate (4), and the upper end of each of the elastic members (13) is mounted on a spring fixing column (14), and the elastic member (13) is a spring whose diameter gradually increases in a direction approaching the lower die edge (8).

3. A forging trimming die set as claimed in claim 1, characterized in that: The lower die cutting edge (8) comprises a blade portion and a support portion, wherein the blade portion is arranged on the support portion and faces the connection between the product portion (11) and the flash portion (12), and the lower end of the lower die guide column (6) is arranged on the support portion.

4. A forging trimming die set as claimed in claim 1, characterized in that: Also includes: A material ejection assembly (15), the material ejection assembly (15) comprising at least one first ejector rod (16) and at least one second ejector rod (17), the first ejector rod (16) passing through the lower punch (7) and being movable up and down against the product portion (11), the second ejector rod (17) passing through the lower die blade (8) and being movable up and down against the flash portion (12).

5. A forging trimming die set as claimed in claim 4, characterized in that: The ejector assembly (15) further comprises: at least one first hydraulic cylinder (18) and at least one second hydraulic cylinder (19), wherein the first hydraulic cylinder (18) is arranged below the lower punch (7), and the second hydraulic cylinder (19) is arranged below the lower die blade (8), each of the first ejector rods (16) is slidably connected to one of the first hydraulic cylinders (18), and each of the second ejector rods (17) is slidably connected to one of the second hydraulic cylinders (19).

6. A forging trimming die set as claimed in claim 4, characterized in that: Also includes: A reset assembly (20), wherein the reset assembly (20) is arranged below the lower punch (7) and the lower die cutting edge (8), and the reset assembly (20) comprises a reset top plate (21), a reset spring (22) and a reset base column (23) which are connected in sequence, wherein the reset top plate (21) abuts against the lower end of the lower punch (7), the first push rod (16) sequentially penetrates the reset top plate (21) and the lower punch (7) and can be moved up and down to abut against the product portion (11), and the second push rod (17) sequentially penetrates the reset top plate (21) and the lower die cutting edge (8) and can be moved up and down to abut against the flash portion (12).

7. A forging trimming die set as claimed in claim 6, characterized in that: The lower mold assembly (2) further comprises a lower fixing plate (24) and a lower base plate (25), wherein the lower fixing plate (24) is arranged on the lower base plate (25), and the reset base column (23) and the lower support plate (9) are both arranged on the lower fixing plate (24).

8. A forging trimming die set as claimed in claim 7, characterized in that: Also includes: A working base (26), wherein the lower base plate (25) is arranged on the working base (26).

9. A forging trimming die set as claimed in claim 1, characterized in that: The upper die assembly (1) further comprises: an upper top plate (27), the upper end of the lower die guide column (6) being connected to the upper top plate (27), and the lower end of the lower die guide column (6) being connected to the lower die blade (8).

10. A forging trimming die set as claimed in claim 1, characterized in that: The shape of the lower end of the upper punch (5) matches the shape of the upper end of the product portion (11), and the shape of the upper end of the lower punch (7) matches the shape of the lower end of the product portion (11).

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