Novel fast forging machine and control method thereof

Abstract

The invention discloses a novel fast forging machine and a control method thereof, and relates to the field of metal rolling equipment, and the novel fast forging machine comprises a main cylinder and a top platform mounted on the outer side of the main cylinder. According to the novel high-speed forging machine and the control method thereof, a cogging mode and a high-speed forging mode are compatible, an efficient and flexible solution in a modern forging process is formed, and the high-frequency forging process requirements of blank shaping and forge piece surface forming can be met at the same time; the cogging mode mainly focuses on optimization of the internal structure of the material and preliminary construction of the macroscopic shape, the compactness of the material and the uniformity of the mechanical property are greatly improved, and it is ensured that the forge piece has excellent toughness and strength in the center. The high-speed forging mode is characterized by high-frequency and small-amplitude continuous forging, and the high-speed forging has the characteristics of high speed, small stroke, good forging surface forming and high size precision, so that the system integrating the two modes has strong macroscopic deformation capability and precise microcosmic forming control.

Description

Technical Field

[0001] This invention relates to the field of metal rolling equipment, specifically to a novel high-speed forging machine and its control method. Background Technology

[0002] High-speed forging machines usually refer to high-speed forging machines, also called stamping forging machines or high-speed forging presses. They are a type of metal forming equipment. Their core principle is to plastically deform metal billets at high speed and high impact force in a short time, so that they produce parts with complex cross-sections and low roughness in the mold cavity.

[0003] In the existing technology, the forging press is relatively slow, and the forging effect is relatively simple, and the forging methods are relatively limited.

[0004] To overcome the above shortcomings, a prior art Chinese patent (publication number CN102218494A) discloses a hydraulic high-speed forging machine, including a main cylinder, a plunger rod disposed in the main cylinder, a base connected to the head of the plunger rod, a ball head disposed between the plunger rod and the base, a spherical pressure ring adapted to the protruding annular surface of the plunger rod head, columns disposed on both sides of the main cylinder, and a guide sleeve disposed at the connection between the main cylinder frame and the columns; the contact surface between the ball head and the plunger rod is spherical; a lubrication groove is provided on the contact surface; the spherical pressure ring is in arc fit with the protruding annular surface of the plunger rod; the guide sleeve is an annular guide sleeve composed of a fixed guide sleeve and a movable guide sleeve, the fixed guide sleeve and the movable guide sleeve are wedge-shaped adapted, the movable guide sleeve is disposed inside the fixed guide sleeve and moves along the inclined plane; the inner surface of the movable guide sleeve contacts the columns, and the outer surface of the fixed guide sleeve contacts the main cylinder frame, resulting in good forging effect and stable structure.

[0005] To overcome the above shortcomings, a prior art Chinese patent (publication number CN219683869U) discloses a high-speed forging machine, including a high-speed forging machine body, two columns, a support platform between the two columns, and a portal frame slidably connected to the two columns via a hydraulic mechanism. The portal frame is connected to a mounting frame for mounting a punch, and the mounting frame corresponds to the position of the support platform. The key feature is that the support platform and the mounting frame are equipped with a cooling assembly, which includes water storage chambers located inside the support platform and the mounting frame, and the two water storage chambers are connected by pipes. Two outer pipes are connected to the top of the water storage chamber located inside the mounting frame, and the two outer pipes are respectively located on both sides of the water storage chamber. A push rod is slidably connected to the bottom of the outer pipe, and the push rod has an exhaust hole. A solenoid valve is located at the top of the outer pipe. The provided high-speed forging machine can cool the punch and the die, converting some of the heat energy into kinetic energy, which helps to reduce energy consumption.

[0006] While existing technologies can overcome the shortcomings mentioned above, other problems still exist in their operation. For example, bar stock processing mainly involves high-speed forging machines and precision forging machines. The key to forging penetration requires high pressure and deformation, which falls within the capabilities of high-speed forging machines and traditional presses. However, high-speed forging machines cannot achieve high frequency or high precision, resulting in poor surface forming and precision of forgings. Precision forging machines, on the other hand, have high forging frequency and high precision, but low pressure. They excel in surface forming and precision, but this leads to poor performance in forging penetration. When dealing with large workpieces that require both forging penetration and surface forming, they become insufficient, sacrificing some performance and increasing processing costs. Summary of the Invention

[0007] The purpose of this invention is to provide a novel high-speed forging machine and its control method to address the issues raised in the background section regarding bar stock processing, which primarily involves high-speed forging machines and precision forging machines. Forging penetration requires high pressure and deformation, falling within the capabilities of high-speed forging machines and traditional presses. However, high-speed forging machines have limited frequency and precision, resulting in poor surface finish and precision of the forgings. Precision forging machines, on the other hand, offer high forging frequency and precision but lower pressure. While they excel in surface finish and precision, they suffer from poor forging penetration. When dealing with large workpieces requiring both high penetration and good surface finish, they fall short, sacrificing some performance and increasing processing costs.

[0008] To achieve the above objectives, the present invention provides the following technical solution: a novel high-speed forging machine, comprising a main cylinder and a top platform mounted on the outside of the main cylinder, columns mounted on the left and right sides of the top platform, a movable crossbeam sleeved on the surface of the columns, an upper anvil provided at the bottom of the movable crossbeam, and a high-speed forging mechanism provided between the upper anvil and the movable crossbeam, a bottom platform mounted at the lower end of the columns, and a lower anvil mounted at the middle of the bottom platform, with the lower anvil corresponding to the upper anvil, and a comb tooth positioning mechanism provided on the inner side of the columns.

[0009] Furthermore, the comb positioning mechanism is equipped with a comb cylinder, and the outer side of the comb cylinder is fixedly installed on the inner wall of the column. The output end of the comb cylinder is equipped with column comb teeth, and the inside of the movable crossbeam is fixedly installed with crossbeam comb teeth, and the crossbeam comb teeth and column comb teeth mesh accordingly.

[0010] Furthermore, the movable crossbeam is equipped with a slider, and an eccentric shaft is installed through the middle end of the slider. The front and rear ends of the eccentric shaft are rotatably installed inside the movable crossbeam, and flywheels are fixedly installed at the front and rear ends of the eccentric shaft.

[0011] Furthermore, a drive motor is fixedly installed on the inner wall of the movable crossbeam, and the output end of the drive motor transmits power to the eccentric shaft through a reduction gear. Two drive motors are symmetrically arranged along the eccentric shaft.

[0012] Furthermore, an adjusting cylinder is fixedly connected to the lower end of the slider, and the end of the adjusting cylinder is connected to the upper end of the anvil.

[0013] Furthermore, a large return cylinder is provided on the upper surface of the bottom platform, and the upper output end of the large return cylinder is connected to the lower end of the movable crossbeam. A small return cylinder is provided inside the movable crossbeam, and the upper output end of the small return cylinder is connected to the outer side of the adjusting cylinder.

[0014] Furthermore, the control method for the novel high-speed forging machine is characterized by specifically including the following: S1: billet opening mode; S2: high-speed forging mode; S1: The blanking mode has three types: manual, semi-automatic and automatic. Its main function is to press and shape the blank. The speed requirement is not high at this stage. S2: In the fast forging mode, the moving crossbeam remains stationary, while the eccentric shaft rotates to drive the adjusting cylinder and the upper anvil to perform high-frequency reciprocating motions to achieve finishing of the forging.

[0015] Furthermore, in S1: the comb cylinder in the blanking mode remains in a retracted state, and the column comb teeth retract; the upper anvil and the small return cylinder maintain high pressure, and the eccentric shaft rotates directly upward; the adjusting cylinder is locked, at which time the upper anvil remains in the highest position and becomes a whole with the movable crossbeam. At this time, the press is controlled in the same way as a conventional forging press, through the main cylinder inlet valve, the main cylinder unloading valve, the large return cylinder inlet valve, the large return cylinder unloading valve, the large return cylinder support valve, etc., to perform conventional control, moving up and down at a low speed to perform forging shaping and blanking work.

[0016] Furthermore, in S2: the fast forging mode, the movable crossbeam moves at a low speed to the positioning range of the crossbeam comb teeth and column comb teeth. The comb teeth are set with stops, and the specific stop of the movable crossbeam positioning is calculated according to the size of the forging. Moving to the positioning stop requires that the upper anvil adjustment stroke range meets the forging size range of the forging. At this time, the comb tooth cylinder extends, and after the column comb teeth are pushed out and engaged with the crossbeam comb teeth, the main cylinder and the large return cylinder are appropriately pressurized and held. This pressure should meet the impact of the eccentric shaft driving the adjustment cylinder and the upper anvil during forging and remain stable without deviation. At this time, the main displacement of the press should remain unchanged. This step ensures the stability of subsequent precision forging.

[0017] Furthermore, in S2: during the fast forging mode, the drive motor drives the eccentric shaft and flywheel to rotate. Due to the eccentric shaft, the slider performs a combined up-down and left-right motion, pushing the adjusting cylinder in the vertical direction to perform a reciprocating motion. Therefore, the upper anvil also performs a reciprocating motion, but has not yet contacted the workpiece. The adjusting cylinder servo valve adjusts the size, and the adjustment is based on the independent displacement sensor to make the upper anvil reach the set forging size. The adjustment of the forging size is determined by the comb tooth position and the adjusting cylinder. At this time, the finishing forging work begins with the manipulator. Since the fast forging in this mode is a conversion of rotational motion into reciprocating motion, it is easy to exceed 100 / min, reaching 200-400 r / min, and the frequency is adjustable. The forging size is achieved by adjusting the cylinder after the comb tooth is positioned and the main cylinder and the large return cylinder pressurize to keep the moving crossbeam stable.

[0018] Compared with the prior art, the beneficial effects of the present invention are: 1. The compatibility of both billet preparation and rapid forging modes constitutes an efficient and flexible solution in modern forging technology. It can simultaneously meet the high-frequency forging process requirements of blank shaping and forging surface forming, while improving forging accuracy. The billet preparation mode mainly focuses on optimizing the internal structure of the material and the preliminary construction of the macroscopic shape. By applying huge pressure, it causes significant plastic deformation of the metal, effectively breaking the as-cast structure, refining the grains, and closing the internal pores, thereby greatly improving the density and uniformity of mechanical properties of the material, ensuring that the forging has excellent toughness and strength in the core.

[0019] 2. The fast forging mode is characterized by its high-frequency, small-amplitude continuous forging. This dynamic and rapid energy input can effectively reduce heat loss during the contact process between the forging and the die, and maintain the material in the ideal plastic temperature range. This is crucial for the forming of complex contours and fine surfaces. The characteristics of fast forging are high speed, short stroke, good surface forming of forgings and high dimensional accuracy. Therefore, this system that integrates the two modes has both powerful macroscopic deformation capabilities and precise microscopic forming control. Furthermore, it can meet the forging penetration requirements of high pressure and large deformation, ensuring that even for large cross-sections or difficult-to-deform alloys, the core structure can be fully compacted and metallurgically bonded, while also meeting the needs of high-frequency forging to reduce temperature drop and improve the surface forming quality of materials.

[0020] 3. It can easily handle a series of complex processes from the initial forming of large free forging blanks to the final near-net-shape forming of precision die forgings, achieving simultaneous improvement in production efficiency and product quality, effectively shortening the production cycle and reducing overall manufacturing costs. Attached Figure Description

[0021] Figure 1This is a schematic diagram of the overall three-dimensional structure of the present invention.

[0022] Figure 2 This is a side view of the three-dimensional structure of the present invention.

[0023] Figure 3 This is a cross-sectional three-dimensional structural diagram of the movable crossbeam of the present invention.

[0024] Figure 4 For the present invention Figure 4 Enlarged structural diagram at point A in the middle.

[0025] Figure 5 This is a side-section three-dimensional structural schematic diagram of the present invention.

[0026] Figure 6 This is a top-section three-dimensional structural diagram of the eccentric shaft of the present invention.

[0027] Figure 7 This is a schematic diagram of the three-dimensional structure of the slider of the present invention.

[0028] Figure 8 This is a three-dimensional structural diagram of the comb-tooth hydraulic cylinder of the present invention.

[0029] Figure 9 This is a schematic diagram of the hammerhead forming curve of the present invention.

[0030] Figure 10 This is a schematic diagram of the force analysis of the active quantity under the precision forging mode of the present invention.

[0031] In the diagram: 1. Main cylinder; 2. Column; 3. Slider; 4. Upper anvil; 5. Large return cylinder; 6. Lower anvil; 7. Small return cylinder; 8. Adjusting cylinder; 9. Comb tooth positioning mechanism; 91. Comb tooth cylinder; 92. Column comb tooth; 93. Crossbeam comb tooth; 10. Movable crossbeam; 11. Eccentric shaft; 12. Flywheel; 13. Top platform; 14. Drive motor; 15. Bottom platform. Detailed Implementation

[0032] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0033] Example 1: As Figures 1-10The technical solution shown is a new type of high-speed forging machine. In order to solve the problem of inconvenience in high-pressure forging and high-frequency forging operations, the following are disclosed: a main cylinder 1 and a top platform 13 installed on the outside of the main cylinder 1. Columns 2 are installed on the left and right sides of the top platform 13. A movable crossbeam 10 is fitted on the surface of the column 2. An upper anvil 4 is set at the bottom of the movable crossbeam 10, and a high-speed forging mechanism is set between the upper anvil 4 and the movable crossbeam 10. A bottom platform 15 is installed at the lower end of the column 2, and a lower anvil 6 is installed at the middle of the bottom platform 15. The lower anvil 6 corresponds to the upper anvil 4. A comb tooth positioning mechanism 9 is set on the inner side of the column 2.

[0034] The comb positioning mechanism 9 is equipped with a comb cylinder 91, and the outer side of the comb cylinder 91 is fixedly installed on the inner wall of the column 2. A column comb tooth 92 is installed at the output end of the comb cylinder 91. A crossbeam comb tooth 93 is fixedly installed inside the movable crossbeam 10, and the crossbeam comb tooth 93 meshes with the column comb tooth 92. A slider 3 is installed inside the movable crossbeam 10, and an eccentric shaft 11 is installed through the middle of the slider 3. The front and rear ends of the eccentric shaft 11 are rotatably installed inside the movable crossbeam 10, and flywheels 12 are fixedly installed at the front and rear ends of the eccentric shaft 11. A drive motor 14 is fixedly installed on the inner wall of the 0, and the output end of the drive motor 14 transmits power to the eccentric shaft 11 through a reduction gear. Two drive motors 14 are symmetrically arranged along the eccentric shaft 11. An adjusting cylinder 8 is fixedly connected to the lower end of the slider 3, and the end of the adjusting cylinder 8 is connected to the upper end of the upper anvil 4. A large return cylinder 5 is provided on the upper surface of the bottom platform 15, and the upper output end of the large return cylinder 5 is connected to the lower end of the movable crossbeam 10. A small return cylinder 7 is provided inside the movable crossbeam 10, and the upper output end of the small return cylinder 7 is connected to the outer side of the adjusting cylinder 8.

[0035] A novel control method for a high-speed forging mill specifically includes the following: S1: billet opening mode; S2: high-speed forging mode; S1: The blanking mode has three modes: manual, semi-automatic and automatic. Its main function is to press and shape the blank. The speed requirement is not high at this stage. S2: In fast forging mode, the moving crossbeam 10 remains stationary, while the eccentric shaft 11 rotates, driving the adjusting cylinder 8 and the upper anvil 4 to perform high-frequency reciprocating motions to achieve finishing of the forging.

[0036] S1: In the blanking mode, the comb cylinder 91 remains in a retracted state, and the column comb 92 retracts; the upper anvil 4 and the small return cylinder 7 maintain high pressure, and the eccentric shaft 11 rotates directly upward; the adjusting cylinder 8 is locked, at which time the upper anvil 4 remains in the highest position and becomes a whole with the movable crossbeam 10. At this time, the press is controlled in the same way as a conventional forging press, through the main cylinder 1 inlet valve, the main cylinder 1 unloading valve, the large return cylinder 5 inlet valve, the large return cylinder 5 unloading valve, the large return cylinder 5 support valve, etc., to perform conventional control, moving up and down at a low speed to carry out forging shaping and blanking work.

[0037] S2: In the fast forging mode, the movable crossbeam 10 moves at a low speed to the positioning range of the crossbeam comb teeth 93 and the column comb teeth 92. The comb teeth are set with stops. The specific stop of the movable crossbeam 10 is calculated according to the size of the forging. Moving to the positioning stop requires that the stroke range of the upper anvil 4 be adjusted to meet the forging size range of the forging. At this time, the comb tooth cylinder 91 extends, and the column comb teeth 92 are pushed out and engaged with the crossbeam comb teeth 93. Then, the main cylinder 1 and the large return cylinder 5 are appropriately pressurized and maintained. This pressure should meet the impact of the eccentric shaft 11 driving the adjusting cylinder 8 and the upper anvil 4 during forging and remain stable without deviation. At this time, the main displacement of the press should remain unchanged. This step ensures the stability of subsequent precision forging.

[0038] S2: In fast forging mode, drive motor 14 drives eccentric shaft 11 and flywheel 12 to rotate. Due to the setting of eccentric shaft 11, slider 3 will perform a compound motion of up, down and left and right, pushing adjustment cylinder 8 to perform up and down reciprocating motion in the vertical direction. Therefore, upper anvil 4 also performs up and down reciprocating motion, but has not yet contacted the workpiece. Adjustment cylinder 8 servo valve adjusts the size, and adjusts the upper anvil 4 to the set forging size according to independent displacement sensor. The adjustment of forging size is determined by comb tooth position and adjustment cylinder 8. At this time, the finishing forging work begins with the operation machine. Since fast forging in this mode is a conversion of rotational motion into reciprocating motion, the frequency can easily exceed 100 / min, reaching 200~400r / min, and the frequency is adjustable. The forging size is achieved by adjusting cylinder 8 after comb tooth positioning, pressure from main cylinder 1 and large return cylinder 5 to keep the moving crossbeam 10 stable as a whole.

[0039] The movable crossbeam 10 is fixed to the column 2. The inner side of the column 2 is designed with a comb tooth positioning mechanism 9 facing the middle of the column 2. The two columns 2 are hollow castings, and rectangular holes are opened at the corresponding positions of the column 2 to install the comb tooth positioning mechanism 9. There are two comb tooth cylinders 91 on the outer side of the comb tooth positioning mechanism 9. This mechanism is responsible for locking the movable crossbeam 10 under the condition of high frequency fast forging. Here, the tooth pitch of the comb tooth is set to d1, and the stroke of the adjusting cylinder 8 is set to d2. The condition that d2>d1 must be met. This is used to ensure the continuity of the forging dimensions of the movable crossbeam 10 when the comb tooth is in different positions. The movable crossbeam 10 has a hollow cavity designed to accommodate a hammer adjustment mechanism similar to that of an RF-structure precision forging machine. An eccentric shaft 11 is installed in the center of the movable crossbeam 10. The rotation of the eccentric shaft 11 drives the adjusting cylinder 8, which in turn drives the upper anvil 4. The upper anvil 4, i.e., the hammer, reciprocates to forge the workpiece. Two small return cylinders 7 are located below the piston rod of the adjusting cylinder 8, supplied with liquid by an accumulator to assist the return motion of the rapid reciprocating motion. The eccentricity of the eccentric shaft 11 is set to E, and the return distance of the small return cylinders 7 in precision forging mode is set to h0. Therefore, h0 = 2E must be satisfied to ensure the return motion of the reciprocating motion is complete. Furthermore, the reduction of the upper anvil 4 in the rapid forging reciprocating motion mode is set to a. Because the eccentricity of the eccentric shaft 11 is E, the displacement of the upper anvil 4 is a sinusoidal motion with an amplitude of E. Figure 9 As shown, the vertical axis, in units of E, represents the displacement stroke of the upper anvil 4, i.e., the amplitude. The horizontal axis corresponds to the rotation angle of the eccentric shaft 11, with 360° representing one revolution as a cycle. Within the rotation cycle of the eccentric shaft 11, the upper anvil 4 undergoes a downward motion between 90° and 270°, known as the pressing interval. Between 270° and 90°, the upper anvil 4 undergoes an upward return motion, known as the return interval. Based on the principle analysis, the work done on the forging must fall within the pressing interval, and specifically within the interval where the stroke of the upper anvil 4 is less than 0. Figure 9 Assuming that the anvil 4 starts to contact the forging at the position shown by the horizontal line, the part covered by the intersection of the horizontal line and the dotted line belongs to the forging zone; within the forging zone, the eccentric shaft 11 releases energy to do work and passively decelerates; within the period outside the forging zone, the eccentric shaft 11 accumulates kinetic energy and accelerates. It can be deduced that the forging reduction a must be less than the eccentricity E. The distance between the lower edge of the comb tooth 92 and the surface of the lower anvil 6 is set as H, the stroke of the adjusting cylinder 8 is set as d2, and the distance between the lower plane of the upper anvil 4 and the lower edge of the comb tooth installation is L when the upper anvil 4 is retracted. Then H needs to satisfy: when the movable crossbeam 10 is positioned at the bottom of the comb tooth, the adjusting cylinder 8 extends to the maximum distance d2, at which time the surface of the upper anvil 4 and the surface of the lower anvil 6 coincide; that is, "H≤L+d2"; Let the total stroke of the small return cylinder 7 be h. Assuming that the return distance h0 during the fine forging operation is in the middle of h, the upper reserved stroke is h1, and the lower reserved stroke is h2, then h = h1 + h0 + h2. h1 belongs to the range of upward adjustment of the adjusting cylinder 8, and h2 belongs to the range of downward adjustment of the adjusting cylinder 8. Therefore, we can get: d2 = h1 + h2; further, we can get: h = h0 + d2. Two large flywheels 12 are installed on the front and rear sides of the movable crossbeam 10 to increase the rotational momentum of the eccentric shaft 11. Regarding the power of the eccentric shaft 11, the present invention uses two adjustable speed drive motors 14, and the drive motors 14 are installed inside the movable crossbeam 10 of the press. The power is transmitted to the eccentric shaft 11 through the reduction gear. Considering the balance of forging force and the requirements of installation space, two are symmetrically arranged diagonally in the forging box.

[0040] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A novel high-speed forging machine, comprising a main cylinder (1) and a top platform (13) mounted on the outside of the main cylinder (1), characterized in that: The top platform (13) is equipped with columns (2) on the left and right sides. The surface of the column (2) is fitted with a movable crossbeam (10). The bottom of the movable crossbeam (10) is provided with an upper anvil (4), and a fast forging mechanism is provided between the upper anvil (4) and the movable crossbeam (10). The lower end of the column (2) is equipped with a bottom platform (15), and the middle end of the bottom platform (15) is equipped with a lower anvil (6), and the lower anvil (6) corresponds to the upper anvil (4). The inner side of the column (2) is provided with a comb tooth positioning mechanism (9).

2. The novel high-speed forging machine according to claim 1, characterized in that: The comb positioning mechanism (9) is equipped with a comb cylinder (91), and the outer side of the comb cylinder (91) is fixedly installed on the inner wall of the column (2). The output end of the comb cylinder (91) is equipped with column comb teeth (92). The inside of the movable crossbeam (10) is fixedly installed with crossbeam comb teeth (93), and the crossbeam comb teeth (93) and column comb teeth (92) mesh with each other.

3. A novel high-speed forging machine according to claim 2, characterized in that: The movable crossbeam (10) is provided with a slider (3), and an eccentric shaft (11) is installed through the middle end of the slider (3). The front and rear ends of the eccentric shaft (11) are rotatably installed inside the movable crossbeam (10), and flywheels (12) are fixedly installed at the front and rear ends of the eccentric shaft (11).

4. A novel high-speed forging machine according to claim 3, characterized in that: The inner wall of the movable crossbeam (10) is fixedly equipped with a drive motor (14), and the output end of the drive motor (14) transmits power to the eccentric shaft (11) through a reduction gear. There are two drive motors (14) arranged symmetrically along the eccentric shaft (11).

5. A novel high-speed forging machine and its control method according to claim 4, characterized in that: The lower end of the slider (3) is fixedly connected to an adjusting cylinder (8), and the end of the adjusting cylinder (8) is connected to the upper end of the anvil (4).

6. The novel high-speed forging machine and its control method according to claim 5, characterized in that: The upper surface of the bottom platform (15) is provided with a large return cylinder (5), and the upper output end of the large return cylinder (5) is connected to the lower end of the movable crossbeam (10). The interior of the movable crossbeam (10) is provided with a small return cylinder (7), and the upper output end of the small return cylinder (7) is connected to the outer side of the adjusting cylinder (8).

7. The control method for a novel high-speed forging machine according to claim 6, characterized in that, Specifically, it includes the following: S1: billet preparation mode; S2: fast forging mode; S1: The blanking mode has three types: manual, semi-automatic and automatic. Its main function is to press and shape the blank. The speed requirement is not high at this stage. In the S2: fast forging mode, the moving crossbeam (10) remains stationary, and the eccentric shaft (11) rotates to drive the adjusting cylinder (8) and the upper anvil (4) to perform high-frequency reciprocating motion to achieve finishing of the forging.

8. The control method for a novel high-speed forging machine according to claim 7, characterized in that: S1: In the blanking mode, the comb cylinder (91) remains in a contracted state, and the column comb (92) retracts; the upper anvil (4) and the small return cylinder (7) maintain high pressure, and the eccentric shaft (11) rotates directly above; the adjusting cylinder (8) is locked, at which time the upper anvil (4) remains in the highest position and the movable crossbeam (10) becomes a whole. At this time, the press is controlled in accordance with the control mode of the conventional forging press, through the main cylinder (1) liquid inlet valve, the main cylinder (1) unloading valve, the large return cylinder (5) liquid inlet valve, the large return cylinder (5) unloading valve, the large return cylinder (5) support valve, etc., to perform conventional control, move up and down at a low speed, and perform forging shaping and blanking work.

9. The control method for a novel high-speed forging machine according to claim 8, characterized in that: S2: In the fast forging mode, the movable crossbeam (10) moves at a low speed to the positioning range of the crossbeam comb teeth (93) and the column comb teeth (92). The comb teeth are set with a stop. The specific stop of the movable crossbeam (10) is calculated according to the size of the forging. When moving to the positioning stop, the upper anvil (4) needs to adjust the stroke range to reach the forging size range of the forging. At this time, the comb tooth cylinder (91) extends, and the column comb teeth (92) are pushed out and engaged with the crossbeam comb teeth (93). The main cylinder (1) and the large return cylinder (5) are appropriately pressurized and maintained. This pressure should meet the impact of the eccentric shaft (11) driving the adjusting cylinder (8) and the upper anvil (4) during forging and remain stable without deviation. At this time, the main displacement of the press should remain unchanged. This step ensures the stability of the subsequent precision forging.

10. The control method for a novel high-speed forging machine according to claim 9, characterized in that: S2: When the fast forging mode is in progress, the drive motor (14) drives the eccentric shaft (11) and flywheel (12) to rotate. Due to the setting of the eccentric shaft (11), the slider (3) will perform a compound motion of up, down and left and right. In the vertical direction, it pushes the adjusting cylinder (8) to perform up and down reciprocating motion. Therefore, the upper anvil (4) also performs up and down reciprocating motion, but has not yet contacted the workpiece. The adjusting cylinder (8) servo valve performs size adjustment. According to the independent displacement sensor, the upper anvil (4) reaches the set forging size. The adjustment of the forging size is determined by the comb tooth position and the adjusting cylinder (8). At this time, the finishing forging work begins with the operation machine. Since the fast forging in this mode is a rotational motion converted into a reciprocating motion, it is easy to break through 100 / min and can reach 200~400r / min. The frequency is adjustable. The forging size is achieved by adjusting the cylinder (08) after the comb tooth is positioned and the main cylinder (1) and the large return cylinder (5) pressurize to keep the moving crossbeam (10) stable as a whole.

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