A forging press die online adjustment mechanism and adjustment method

Abstract

The present invention belongs to the technical field of metal pressure processing, and particularly relates to an online adjustment mechanism and adjustment method for a forging press die. An online adjustment mechanism for a forging press die comprises a fuselage, which is in a "U"-shaped structure, including an upper shell and a lower shell. A crossbeam is provided in the middle of the fuselage, and a left adjustment mechanism and a right adjustment mechanism are provided at the left and right ends of the upper part of the crossbeam, respectively. The upper parts of the left adjustment mechanism and the right adjustment mechanism are respectively connected to the lower end surfaces of the left and right ends of the upper shell, and a clamping mechanism is provided at the upper part of the lower shell, respectively, and the top of the clamping mechanism is in contact with the lower end surface of the crossbeam. The present invention can automatically adjust the different distances and angles between the upper and lower dies according to product requirements, and realizes the online and dynamic precise adjustment of the forging press die when the forging press is running at high speed, with high equipment start-up rate, high product quality, high productivity, and high production efficiency.

Description

Technical Field

[0001] The invention belongs to the technical field of metal pressure processing, and in particular relates to an online adjustment mechanism and an adjustment method for a forging press die. Background Art

[0002] For some forged products, the size and shape accuracy depends on the position and size accuracy of the press die. In many cases, the die size has been determined, and the die is repeatedly adjusted offline during use according to the condition of the forged product, gradually approaching so that the product reaches the required accuracy and requirements. Most forging dies on presses consist of an upper die and a lower die, which are used in pairs. Generally, the lower die is fixed above the lower beam, and the lower beam of the press is fixed and does not move, so there is no adjustment function for the lower die. The upper die is fixed to the bottom surface of the slider or the movable beam of the press, and moves up and down with the slider. Its bottom dead point is determined by the characteristics and parameters of the forging press. The parallel distance between the upper die and the lower die can be adjusted offline using the adjustment screw on the slider. The specific process is: test the forged products. When it is detected that the product size is unqualified, stop the forging press, adjust the mold manually or electrically, measure the adjusted size and position manually, and run the forging press again after confirmation to forge the product. Then, test it again to determine whether it is qualified and decide whether to stop the machine and adjust the mold again. Repeat the process of stopping, adjusting, measuring and starting to gradually approach the requirements and finally make the product meet the requirements.

[0003] As a forging press, one of its main parameters is the size of the forging tonnage, which ranges from tens of tons to hundreds, thousands or even tens of thousands of tons. The existing mold adjustment method is to use the manual or electric-driven lead screw nut on the slider to adjust the machine offline. Due to the influence of factors such as the stress state of the adjustment mechanism, the size of the structure, the clearance elimination of the lead screw nut, the rigidity of the whole machine, the size and precision stability, and the space occupied, the working capacity of the equipment (press tonnage) is limited in the development of large-scale, digital, and intelligent development, and it is even more impossible to adjust the non-parallelism between the upper and lower molds online, dynamically, automatically, and intelligently. When the upper and lower molds need to have a certain non-parallelism and a certain specific tilt angle, the adjustment structure of the existing press cannot be accurately adjusted or cannot be realized.

[0004] Forging presses often work at higher frequencies, especially modern high-frequency presses, whose working frequency can reach 1500 times / minute (25Hz), or even higher to thousands of times / minute. Their working force, that is, the tonnage of the press, starts from tens of tons, often hundreds of tons, thousands of tons or even tens of thousands of tons. Moreover, this high-frequency and ultra-high-frequency press not only has a very high working frequency and a large working tonnage, but also has extremely high requirements for the running accuracy of the mold. The dimensional accuracy of some products produced by it is extremely high, such as the lead frame products of high-power devices in integrated circuits. The accuracy needs to be controlled at the micron level (µm), and the products used for large-scale continuous production have extremely high requirements for the stability, reliability and consistency of the equipment. For equipment and products produced by continuous forging, such as continuous and extremely long strip products, the forging frequency of the equipment is very high, especially for high-speed and ultra-high-speed forging equipment, whose forging frequency is as high as 1500 times / min (25Hz). Each start and stop will cause a lot of waste. Repeated shutdown and start due to mold adjustment often leads to low product yield, low product productivity and high production cost. Summary of the invention

[0005] In view of the above problems, the purpose of the present invention is to provide an online adjustment mechanism and adjustment method for a forging press die, so as to solve the problem in the prior art that the forging press die cannot be adjusted online and dynamically and accurately. According to product requirements, the distance and angle between the upper and lower dies can be automatically adjusted, thereby realizing online and dynamic and accurate adjustment of the forging press die when the forging press is running at high speed, and having high stability and reliability, relatively simple structure, small space occupation, small data detection error, extremely high and stable adjustment sensitivity, excellent stress condition of the adjustment mechanism, and if the clamping device adopts a large oil cylinder for clamping, it is more convenient to develop in the direction of large-scale, thereby significantly improving the performance of presses of various tonnage levels, with high equipment start-up rate, high product quality, high productivity and high production efficiency.

[0006] The technical solution of the present invention is: an online adjustment mechanism for a forging press die, comprising a fuselage, the fuselage is in a "U"-shaped structure, comprising an upper shell and a lower shell, a crossbeam is provided in the middle of the fuselage, a left adjustment mechanism and a right adjustment mechanism are respectively provided at the left and right ends of the upper part of the crossbeam, the upper parts of the left adjustment mechanism and the right adjustment mechanism are respectively connected to the lower end surfaces of the left and right ends of the upper shell, and a clamping mechanism is respectively provided on the upper part of the lower shell, and the top of the clamping mechanism is in contact with the lower end surface of the crossbeam.

[0007] The left side adjustment mechanism and the right side adjustment mechanism are respectively provided with a driving mechanism on the side away from the fuselage, and the driving mechanism is provided with a displacement detection mechanism.

[0008] A mold mounting rod is provided on the inner top surface of the upper shell, the lower part of the mold mounting rod is fixedly connected to a movable crossbeam of a press, the lower end surface of the movable crossbeam of the press is fixedly connected to an upper mold, the middle position of the upper part of the crossbeam is fixedly connected to a lower mold, and the upper mold and the lower mold are arranged opposite to each other.

[0009] The left side adjustment mechanism is an inclined wedge type adjustment mechanism, comprising a first upper wedge block and a first lower wedge block, wherein the upper plane of the first upper wedge block is in sliding contact with the lower end surface of the upper shell, and the lower inclined surface of the first upper wedge block is in contact with the upper inclined surface of the first lower wedge block.

[0010] A first arc-shaped groove is provided in the middle of the lower surface of the first lower wedge block, and a first columnar protrusion that can slide left and right is provided on the upper surface of the crossbeam below the first arc-shaped groove. The first columnar protrusion is semi-cylindrical, and the semi-cylindrical rectangular plane of the first columnar protrusion (13) contacts the upper surface of the upper crossbeam (5), and the semi-cylindrical arc surface of the first columnar protrusion contacts the first arc-shaped groove on the lower surface of the first lower wedge block.

[0011] The right side adjustment mechanism is an inclined wedge type adjustment mechanism, including a second upper wedge block and a second lower wedge block, the upper plane of the second upper wedge block contacts the lower end surface of the upper shell body, and the lower inclined surface of the second upper wedge block contacts the upper inclined surface of the second lower wedge block.

[0012] A second arc-shaped groove is provided in the middle of the lower surface of the second lower wedge block, and a second columnar protrusion that can slide left and right is provided on the upper surface of the cross beam below the second arc-shaped groove. The second columnar protrusion is semi-cylindrical, and the rectangular plane of the semi-cylindrical second columnar protrusion (43) contacts the upper surface of the cross beam (5), and the arc surface of the semi-cylindrical second columnar protrusion contacts the second arc-shaped groove on the lower surface of the second lower wedge block.

[0013] The driving mechanism comprises a double-axle hydraulic cylinder, one end of which is connected to the left adjustment mechanism and the right adjustment mechanism, and the other end is connected to the displacement detection mechanism, which is a telescopic displacement sensor.

[0014] The clamping mechanism is arranged at the upper part of the left and right ends of the lower shell or is arranged in a single position in the middle of the lower shell, and the clamping mechanism comprises a single-axis hydraulic cylinder, the top end of the piston rod of the single-axis hydraulic cylinder is provided with a hemispherical hinge with the cross beam, and the plane of the hemispherical hinge (62) is in contact with the lower surface of the cross beam (5) and can slide left and right.

[0015] A forging press die online adjustment method, using any one of the forging press die online adjustment mechanisms described above, comprises the following steps:

[0016] Step 1: When the forging press is in online production, the set distance between the upper die (9) and the lower die (8) is determined according to the error value of the product, and then the overlapping height △h1 of the first upper wedge block (11) and the first lower wedge block (12) and the overlapping height △h2 of the second upper wedge block (41) and the second lower wedge block (42) are determined, and then the angle β=arcSin(△h2-△h1) / L that needs to be satisfied between the upper die (9) and the lower die (8) is determined, where L is the distance between the first columnar protrusion (13) and the second columnar protrusion (43), and then the relative displacement value S1 of the first upper wedge block (11) and the first lower wedge block (12) in the horizontal direction and the relative displacement value S2 of the second upper wedge block (41) and the second lower wedge block (42) in the horizontal direction are determined;

[0017] Step 2: The positions of the first upper wedge block and the second upper wedge block are adjusted online by the driving mechanism, and the displacement detection mechanism measures the S1 and S2 values, so that the upper mold and the lower mold can always maintain the set distance without stopping the machine, thereby ensuring that the produced products meet the high precision requirements.

[0018] The technical effects of the present invention are as follows: 1. The left and right adjustment mechanisms of the present invention adopt the form of wedge blocks, which can withstand greater forging forces. The reasonable wedge block area design fully meets the operating pressure of large-tonnage presses, and removes the restrictions on the large-scale development of presses; 2. The clamping force of the clamping mechanism of the present invention is much greater than the rated working pressure of the forging press. While bearing the forging force, it can ensure sufficient system rigidity. When the forging force is too large due to an accident, the fuselage and other important parts of the press can be protected from damage, thereby further ensuring the safety of large-scale presses; 3. The present invention adopts an inclined wedge-type adjustment mechanism in combination with a driving mechanism. The inclination of the inclined wedge block can slow down the displacement of the driving mechanism by dozens or hundreds of times, thereby producing extremely high adjustment resolution and adjustment accuracy, which can also be stably achieved at the micron-level accuracy level; 4. The present invention adopts a clamping mechanism in combination with a wedge-type adjustment mechanism, which not only supports the tonnage of the press, but also presses the wedge block and the fuselage with a sufficiently large clamping force and fits them firmly, completely eliminating The gap maintains sufficient stability and reliability of the adjustment accuracy; 5. A hemispherical hinge is adopted between the clamping mechanism and the beam of the present invention, and a first columnar protrusion and a second columnar protrusion are respectively provided at the grooves of the left adjustment mechanism and the right adjustment mechanism on the upper surface of the beam, such columnar protrusion is semi-cylindrical, and the rectangular plane of the semi-cylindrical columnar protrusion contacts the upper surface of the upper beam and can slide left and right along the upper surface of the upper beam, and the arc surface of the semi-cylindrical columnar protrusion contacts the arc-shaped groove on the lower surface of the lower wedge block of the adjustment mechanism, and the beam and the lower wedge block of the adjustment structure can rotate relative to each other, and a hemispherical hinge is provided between the top of the clamping mechanism and the beam, and the plane of the hemispherical hinge contacts the lower surface of the beam and can slide left and right. These key measures ensure that the angles between the beam and the left adjustment mechanism and the right adjustment mechanism, and the angles between the beam and the clamping mechanism can be freely adjusted, and then the different angles and distances between the upper and lower dies can be automatically adjusted according to product requirements, thereby realizing the online and dynamic precise adjustment of the forging press die when the forging press is running at high speed.

[0019] The following is a further description with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of a forging press mold online adjustment mechanism when the lower mold is in a horizontal state according to an embodiment of the present invention.

[0021] Figure 2 This is an AA cross-sectional view of a forging press mold online adjustment mechanism when the lower mold is in a horizontal state according to an embodiment of the present invention.

[0022] Figure 3 It is a structural schematic diagram of a forging press mold online adjustment mechanism when the lower mold is in a tilted state according to an embodiment of the present invention.

[0023] Figure 4It is a structural schematic diagram of a single clamping mechanism of an online adjustment mechanism of a forging press die in an embodiment of the present invention when the lower die is in a horizontal state.

[0024] Figure 5 It is a structural schematic diagram of a single clamping mechanism of an online adjustment mechanism of a forging press die in an inclined state according to an embodiment of the present invention.

[0025] Figure markings: 1-left side adjustment mechanism, 2-displacement detection mechanism, 3-driving mechanism, 4-right side adjustment mechanism, 5-crossbeam, 6-clamping mechanism, 7-fuselage, 8-lower mold, 9-upper mold, 10-movable crossbeam of press, 11-first upper wedge block, 12-first lower wedge block, 13-first columnar protrusion, 41-second upper wedge block, 42-second lower wedge block, 43-second columnar protrusion, 61-single-axis hydraulic cylinder, 62-spherical hinge. DETAILED DESCRIPTION

[0026] Example 1

[0027] like Figure 1~Figure 5 As shown, an online adjustment mechanism for a forging press die comprises a body 7, the body 7 is in a "U"-shaped structure, comprising an upper shell and a lower shell, a crossbeam 5 is provided in the middle of the body 7, a left adjustment mechanism 1 and a right adjustment mechanism 4 are provided at the left and right ends of the upper part of the crossbeam 5, the upper parts of the left adjustment mechanism 1 and the right adjustment mechanism 4 are respectively connected to the lower end surfaces of the left and right ends of the upper shell, a clamping mechanism 6 is respectively provided at the upper part of the lower shell, and the top of the clamping mechanism 6 is in contact with the lower end surface of the crossbeam 5.

[0028] During actual use, the clamping force of the clamping mechanism 6 of the present invention is much greater than the rated working pressure of the forging press. While bearing the forging force, it can ensure sufficient system rigidity. When the forging force is too large due to an accident, the fuselage and other important parts of the press can be protected from damage, thereby further ensuring the safety of the large press. At the same time, the left adjustment mechanism 1 and the right adjustment mechanism 4 respectively adjust the angle between the crossbeam and the upper mold, and then can automatically adjust the different distances and angles between the upper and lower molds according to product requirements, thereby realizing the online and dynamic precise adjustment of the forging press mold when the forging press is running at high speed.

[0029] Example 2

[0030] Preferably, on the basis of Embodiment 1, in this embodiment, the left adjustment mechanism 1 and the right adjustment mechanism 4 are respectively provided with a driving mechanism 3 on the side away from the fuselage 7 , and the driving mechanism 3 is provided with a displacement detection mechanism 2 .

[0031] During actual use, the present invention drives the left adjustment mechanism 1 and the right adjustment mechanism 4 through the driving mechanism 3, and accurately controls the positions of the first upper wedge block 11 and the second upper wedge block 41 through the displacement detection mechanism 2, thereby accurately controlling the distance and angle between the upper and lower dies, thereby realizing online and dynamic precise adjustment of the forging press die when the forging press is running at high speed.

[0032] Example 3

[0033] Preferably, on the basis of Example 1 or Example 2, in this embodiment, a mold mounting rod is provided on the inner top surface of the upper shell body, a movable crossbeam 10 of a press is fixedly connected to the lower portion of the mold mounting rod, an upper mold 9 is fixedly connected to the lower end surface of the movable crossbeam 10 of the press, a lower mold 8 is fixedly connected to the middle position of the upper portion of the crossbeam 5, and the upper mold 9 and the lower mold 8 are arranged opposite to each other.

[0034] During actual use, a mold mounting rod is provided on the inner top surface of the upper shell of the present invention, and a press movable crossbeam 10 is fixedly connected to the lower part of the mold mounting rod, and an upper mold 9 is fixedly connected to the lower end surface of the press movable crossbeam 10. The upper mold 9 and the lower mold 8 are arranged opposite to each other, and the distance between the upper mold 9 and the lower mold 8 can be roughly adjusted by the press movable crossbeam 10.

[0035] Example 4

[0036] Preferably, on the basis of Example 1 or Example 3, in this embodiment, the left-side adjustment mechanism 1 is an inclined wedge-type adjustment mechanism, including a first upper wedge block 11 and a first lower wedge block 12, the upper plane of the first upper wedge block 11 contacts the lower end surface of the upper shell body, and the lower inclined surface of the first upper wedge block 11 contacts the upper inclined surface of the first lower wedge block 12.

[0037] In actual use, the left adjustment mechanism 1 of the present invention is an inclined wedge adjustment mechanism, which can withstand greater forging force. The reasonable wedge block area design fully meets the operating pressure of large-tonnage presses, removing the restrictions on the large-scale development of presses.

[0038] Example 5

[0039] Preferably, on the basis of Example 1 or Example 4, in this embodiment, a first arc-shaped groove is provided in the middle part of the lower surface of the first lower wedge block 12, and a first columnar protrusion 13 that can slide left and right is provided on the upper surface of the cross beam 5 below the first arc-shaped groove, and the first columnar protrusion 13 is semi-cylindrical, and the semi-cylindrical arc surface of the first columnar protrusion 13 is in contact with the first arc-shaped groove on the lower surface of the first lower wedge block 12.

[0040] During actual use, a first columnar protrusion 13 which can slide left and right is provided at the contact point between the lower surface of the first lower wedge block 12 of the present invention and the upper surface of the beam 5, thereby ensuring that the angle between the beam 5 and the left adjustment mechanism 1 can be adjusted. The first columnar protrusion 13 can slide left and right, and then can automatically adjust the different angles and distances between the upper and lower molds according to product requirements, thereby realizing the online and dynamic precise adjustment of the forging press mold when the forging press is running at high speed.

[0041] Example 6

[0042] Preferably, on the basis of Example 1 or Example 5, in this embodiment, the right-side adjustment mechanism 4 is an inclined wedge-type adjustment mechanism, including a second upper wedge block 41 and a second lower wedge block 42, the upper plane of the second upper wedge block 41 contacts the lower end surface of the upper shell body, and the lower inclined surface of the second upper wedge block 41 contacts the upper inclined surface of the second lower wedge block 42.

[0043] In actual use, the right adjustment mechanism 4 of the present invention is an inclined wedge adjustment mechanism, which can withstand greater forging force. The reasonable wedge block area design fully meets the operating pressure of large-tonnage presses, removing the restrictions on the large-scale development of presses.

[0044] Example 7

[0045] A second arc-shaped groove is provided in the middle of the lower surface of the second lower wedge block 42, and a second columnar protrusion 43 which can slide left and right is provided on the upper surface of the cross beam 5 below the second arc-shaped groove. The second columnar protrusion 43 is semi-cylindrical, and the semi-cylindrical arc surface of the second columnar protrusion 43 is in contact with the second arc-shaped groove on the lower surface of the second lower wedge block 42.

[0046] During actual use, a second columnar protrusion 43 is provided at the contact point between the lower surface of the second lower wedge block 42 of the present invention and the upper surface of the beam 5, which ensures that the angle between the beam 5 and the right adjustment mechanism 4 can be adjusted. The second columnar protrusion 43 can slide left and right, and then can automatically adjust the different angles and distances between the upper and lower molds according to product requirements, thereby realizing online and dynamic precise adjustment of the forging press mold when the forging press is running at high speed.

[0047] Example 8

[0048] Preferably, on the basis of Example 1 or Example 7, in this embodiment, the driving mechanism 3 includes a double-axis hydraulic cylinder, one end of the double-axis hydraulic cylinder is connected to the left adjustment mechanism 1 and the right adjustment mechanism 4, and the other end is connected to the displacement detection mechanism 2, and the displacement detection mechanism 2 is a telescopic displacement sensor.

[0049] During actual use, the driving mechanism 3 of the present invention includes a double-axle hydraulic cylinder, which can ensure the two-way adjustment of the left adjustment mechanism 1 and the right adjustment mechanism 4. In addition to the hydraulically driven double-axle hydraulic cylinder, the driving mechanism 3 can also adopt electric, mechanical and other forms of linear displacement driving mechanisms. The displacement detection mechanism 2 is a telescopic displacement sensor with high detection accuracy.

[0050] Example 9

[0051] Preferably, on the basis of Example 1 or Example 8, in this embodiment, the clamping mechanism 6 is located at the upper part of the left and right ends of the lower shell or is located in the middle position of the lower shell, and the clamping mechanism 6 includes a single-axis hydraulic cylinder 61, and the top end of the piston rod of the single-axis hydraulic cylinder 61 is provided with a hemispherical hinge 62 with the cross beam 5, and the plane of the hemispherical hinge 62 is in contact with the lower surface of the cross beam 5 and can slide left and right.

[0052] In actual use, the present invention uses a spherical hinge 62 between the clamping mechanism 6 and the crossbeam 5, and the single-axis hydraulic cylinder 61 moves up and down to adjust the angle between the crossbeam 5 and the clamping mechanism 6, so that the different angles and distances between the upper and lower molds can be adjusted according to product requirements. The clamping force of the clamping mechanism 6 is much greater than the rated working pressure of the forging press. While bearing the forging force, it can ensure sufficient system rigidity. When the forging force is too large due to an accident, the fuselage and other important parts of the press can be protected from damage, thereby further ensuring the safety of the large press. The clamping mechanism 6 is used in conjunction with the left adjustment mechanism 1 and the right adjustment mechanism 4, which not only supports the tonnage of the press, but also presses the left adjustment mechanism 1 and the right adjustment mechanism 4 to fit the fuselage with a sufficiently large clamping force, eliminating the gap and maintaining sufficient stability and reliability of the adjustment accuracy.

[0053] Example 10

[0054] A forging press die online adjustment method, using any one of the forging press die online adjustment mechanisms described above, comprises the following steps:

[0055] Step 1: When the forging press is in online production, the set distance between the upper die (9) and the lower die (8) is determined according to the error value of the product, and then the overlapping height △h1 of the first upper wedge block (11) and the first lower wedge block (12) and the overlapping height △h2 of the second upper wedge block (41) and the second lower wedge block (42) are determined, and then the angle β=arcSin(△h2-△h1) / L that needs to be satisfied between the upper die (9) and the lower die (8) is determined, where L is the distance between the first columnar protrusion (13) and the second columnar protrusion (43), and then the relative displacement value S1 of the first upper wedge block (11) and the first lower wedge block (12) in the horizontal direction and the relative displacement value S2 of the second upper wedge block (41) and the second lower wedge block (42) in the horizontal direction are determined;

[0056] Step 2: The positions of the first upper wedge block 11 and the second upper wedge block 41 are adjusted online by the driving mechanism 3, and the displacement detection mechanism 2 measures the S1 and S2 values, so that the upper mold 9 and the lower mold 8 can always maintain the set distance without stopping the machine, thereby ensuring that the produced products meet the high precision requirements.

[0057] 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 changes or substitutions that can be easily conceived by any technician familiar with the technical field within the technical scope disclosed by the present invention should be covered within the protection scope of the present invention.

Claims

1. An online adjustment mechanism for a forging press die, characterized in that: The invention comprises a fuselage (7), wherein the fuselage (7) is in a "U"-shaped structure and comprises an upper shell and a lower shell. A crossbeam (5) is provided in the middle of the fuselage (7). A left adjustment mechanism (1) and a right adjustment mechanism (4) are provided at the left and right ends of the upper part of the crossbeam (5). The upper parts of the left adjustment mechanism (1) and the right adjustment mechanism (4) are connected to the lower end surfaces of the left and right ends of the upper shell respectively. A pressing mechanism (6) is provided at the upper part of the lower shell. The top of the pressing mechanism (6) is in contact with the lower end surface of the crossbeam (5). The side adjustment mechanism (1) is an inclined wedge type adjustment mechanism, comprising a first upper wedge block (11) and a first lower wedge block (12), wherein the upper plane of the first upper wedge block (11) contacts the lower end surface of the upper shell body, the lower inclined surface of the first upper wedge block (11) contacts the upper inclined surface of the first lower wedge block (12), a first arc-shaped groove is provided in the middle of the lower surface of the first lower wedge block (12), and a first columnar protrusion (13) which can slide leftward and rightward is provided on the upper surface of the cross beam (5) below the first arc-shaped groove, and the first columnar protrusion (13) The first columnar protrusion (13) is semi-cylindrical, the semi-cylindrical rectangular plane of the first columnar protrusion (13) contacts the upper surface of the crossbeam (5), the semi-cylindrical arc surface of the first columnar protrusion (13) contacts the first arc-shaped groove on the lower surface of the first lower wedge block (12), and the right-side adjustment mechanism (4) is an inclined wedge-type adjustment mechanism, comprising a second upper wedge block (41) and a second lower wedge block (42), the upper plane of the second upper wedge block (41) contacts the lower end surface of the upper shell body, and the lower inclined surface of the second upper wedge block (41) contacts the second lower wedge block (42). The upper inclined surface of the lower wedge block (42) is in contact with the upper inclined surface of the lower wedge block (42), a second arc-shaped groove is provided in the middle of the lower surface of the second lower wedge block (42), and a second columnar protrusion (43) that can slide left and right is provided on the upper surface of the cross beam (5) below the second arc-shaped groove, the second columnar protrusion (43) is semi-cylindrical, the semi-cylindrical rectangular plane of the second columnar protrusion (43) is in contact with the upper surface of the cross beam (5), and the semi-cylindrical arc surface of the second columnar protrusion (43) is in contact with the second arc-shaped groove on the lower surface of the second lower wedge block (42).

2. According to claim 1, a forging press die online adjustment mechanism is characterized in that: A driving mechanism (3) is respectively provided on the side of the left adjustment mechanism (1) and the side of the right adjustment mechanism (4) away from the fuselage (7), and a displacement detection mechanism (2) is provided on the driving mechanism (3).

3. According to claim 1, the online adjustment mechanism for the die of a forging press is characterized in that: A mold mounting rod is provided on the top surface of the upper shell body, the lower part of the mold mounting rod is fixedly connected to a movable cross beam (10) of a press machine, the lower end surface of the movable cross beam (10) of the press machine is fixedly connected to an upper mold (9), the middle position of the upper part of the cross beam (5) is fixedly connected to a lower mold (8), and the upper mold (9) and the lower mold (8) are arranged opposite to each other.

4. According to claim 2, a forging press die online adjustment mechanism is characterized in that: The driving mechanism (3) comprises a double-axle hydraulic cylinder, one end of the double-axle hydraulic cylinder is connected to the left adjustment mechanism (1) and the right adjustment mechanism (4), and the other end is connected to the displacement detection mechanism (2), and the displacement detection mechanism (2) is a telescopic displacement sensor.

5. According to claim 1, the online adjustment mechanism for the die of a forging press is characterized in that: The clamping mechanism (6) is arranged at the upper part of the left and right ends of the lower shell or is arranged at the middle position of the lower shell. The clamping mechanism (6) comprises a single-axis hydraulic cylinder (61). The top end of the piston rod of the single-axis hydraulic cylinder (61) and the cross beam (5) are provided with a hemispherical hinge (62). The plane of the hemispherical hinge (62) contacts the lower surface of the cross beam (5) and can slide left and right.

6. A method for adjusting a forging press die online, using the forging press die online adjustment mechanism as claimed in any one of claims 1 to 5, characterized in that: The following steps are involved: Step 1: When the forging press is in online production, the set distance between the upper die (9) and the lower die (8) is determined according to the error value of the product, and then the overlapping height △h1 of the first upper wedge block (11) and the first lower wedge block (12) and the overlapping height △h2 of the second upper wedge block (41) and the second lower wedge block (42) are determined, and then the angle β=arcSin(△h2-△h1) / L that needs to be satisfied between the upper die (9) and the lower die (8) is determined, where L is the distance between the first columnar protrusion (13) and the second columnar protrusion (43). Then, the relative displacement value S1 of the first upper wedge block (11) and the first lower wedge block (12) in the horizontal direction and the relative displacement value S2 of the second upper wedge block (41) and the second lower wedge block (42) in the horizontal direction are determined; Step 2: The positions of the first upper wedge block (11) and the second upper wedge block (41) are adjusted online by the driving mechanism (3), and the values ​​S1 and S2 are measured by the displacement detection mechanism (2), so that the upper mold (9) and the lower mold (8) can always maintain the set distance without stopping the machine, thereby ensuring that the produced products meet the high precision requirements.

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