Constant rate forging servo press

Abstract

The present application relates to a kind of equal rate forging servo press, it includes body, flywheel assembly, screw rod, slider and workbench flywheel assembly with body rotation cooperation;Screw rod is connected to flywheel assembly;Slider is sleeved on screw rod, and is threadedly cooperated with screw rod;Workbench is spaced apart with slider along the axial direction of screw rod, and workbench is used to carry workpiece, flywheel assembly can drive screw rod synchronous rotation, to make slider move along the axial direction of screw rod, to hit pressure workpiece;Adjusting part is sleeved on screw rod, adjusting part can be magnetically attracted and adsorbed with slider, to increase the mass of slider.The above-mentioned equal rate forging servo press, flywheel assembly can drive screw rod synchronous rotation, slider moves along the axial direction of screw rod, to hit pressure workpiece and forge.For adjusting part is sleeved on screw rod, and adjusting part is adsorbed on slider by magnetic attraction, so as to change the mass of slider, so as to change the impact energy and impact speed.

Description

Technical Field

[0001] This invention relates to the field of press technology, and in particular to a constant-rate forging servo press. Background Technology

[0002] A constant-rate forging servo press includes a flywheel assembly, a screw, a slide block, and a worktable. The flywheel assembly is connected to the screw, the worktable supports the workpiece, and the slide block is fitted onto the screw with a threaded connection. The flywheel assembly can rotate, thereby driving the screw to rotate, causing the slide block to move along the screw's axis to press the workpiece on the worktable. However, in existing constant-rate forging servo presses, the mass of the flywheel assembly, screw, and slide block is fixed, and the impact energy is rigidly coupled with the impact speed. Therefore, the impact energy and impact speed provided by the fixed-mass flywheel assembly, screw, and slide block are fixed. For workpieces of different sizes and materials, it is impossible to provide a preset impact energy (the impact energy will not be too small) and a preset impact speed (a suitable workpiece forming speed), thus preventing the workpiece from being formed under preset conditions and affecting the workpiece processing effect. Summary of the Invention

[0003] Therefore, it is necessary to provide a constant-rate forging servo press to address the problem of unadjustable impact energy and impact speed.

[0004] A constant-rate forging servo press, comprising:

[0005] body;

[0006] The flywheel assembly rotates in conjunction with the fuselage.

[0007] The screw is connected to the flywheel assembly;

[0008] A slider is sleeved on the screw and threadedly engaged with the screw.

[0009] The worktable and the slider are spaced apart along the axis of the screw. The worktable is used to carry the workpiece. The flywheel assembly can drive the screw to rotate synchronously, so that the slider moves along the axis of the screw to press the workpiece.

[0010] An adjusting element is sleeved on the screw, and the adjusting element can be attracted to the slider by magnetic attraction to increase the mass of the slider.

[0011] In one embodiment, the adjusting member includes a counterweight plate, an iron core, and an inductor coil. The inductor coil and the iron core are both mounted on the counterweight plate, and the inductor coil is sleeved outside the iron core. When energized, the inductor coil is used to generate a magnetic attraction force on the iron core, so that the counterweight plate is attracted to the slider.

[0012] In one embodiment, a receiving groove is provided on the end face of the counterweight plate near the slider, and the inductor coil and the iron core are both disposed in the receiving groove.

[0013] In one embodiment, the adjusting member further includes a magnetic guide plate disposed between the counterweight plate and the slider, the magnetic guide plate being connected to the counterweight plate to block the receiving groove, and the iron core and the magnetic guide plate abutting against the end face of the slider away from the slider.

[0014] In one embodiment, a carrier mounted on the body and movable relative to the body is also included, the carrier being movable between the adjusting member and the slider to limit the attraction between the adjusting member and the slider.

[0015] In one embodiment, the carrier is rotatably connected to the body, the carrier having an abutment portion extending in a direction away from the body, the carrier being rotatable relative to the body so that the abutment portion is located between the adjusting member and the slider.

[0016] In one embodiment, multiple adjusting members are provided, and the multiple adjusting members are arranged sequentially along the axial direction of the screw. Adjacent adjusting members can be attracted to each other by magnetic attraction. The carrier can move between adjacent adjusting members to limit the attraction between adjacent adjusting members.

[0017] In one embodiment, the flywheel assembly includes a main flywheel and a secondary flywheel. The main flywheel is fixedly connected to the screw, and the secondary flywheel is sleeved on the screw. The secondary flywheel has a first state and a second state. When in the first state, there is a gap between the secondary flywheel and the screw. When in the second state, the secondary flywheel is connected to the screw through a connecting structure.

[0018] In one embodiment, the connection structure includes:

[0019] The push rod has a mounting hole extending along its axis inside the screw, and the push rod is disposed in the mounting hole and slides in contact with the wall of the mounting hole;

[0020] A pin is inserted into the mounting hole and slides with the screw. When in the first state, the pin is located inside the screw. When in the second state, the pin passes through the screw and is inserted into the secondary flywheel. The push rod is used to push the pin to slide.

[0021] In one embodiment, the connection structure further includes an elastic element. A insertion groove is provided on the inner circumferential surface of the secondary flywheel near the screw. The elastic element is disposed in the insertion groove, and one end of the elastic element is connected to the groove wall of the insertion groove, while the other end can abut against the pin.

[0022] The beneficial effects of this invention are:

[0023] The aforementioned constant-rate forging servo press features a flywheel assembly mounted on the machine body, rotating in conjunction with the machine body. A screw is connected to the flywheel assembly, and a slider is fitted onto the screw, with the slider and screw threaded together. The worktable and slider are arranged at intervals along the screw's axis. A workpiece is placed on the worktable, and the flywheel assembly drives the screw to rotate synchronously, causing the slider to move along the screw's axis, thus forging the workpiece. An adjusting element is fitted onto the screw and magnetically attracted to the slider, thereby altering the slider's mass and consequently the impact energy and speed. The constant-rate forging servo press provided in this application increases the impact energy and speed provided by the slider by increasing its mass, making it suitable for workpieces with a wider range of impact energy and speed requirements. For different workpieces, the adjusting element is magnetically attracted to the slider to change the impact energy and speed, improving the pressing effect and enhancing the workpiece's forming quality. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the constant-rate forging servo press provided in an embodiment of the present invention;

[0025] Figure 2 This is a schematic diagram of the structure of the adjusting member provided in an embodiment of the present invention;

[0026] Figure 3 This is a schematic diagram of the flywheel assembly provided in an embodiment of the present invention.

[0027] In the picture:

[0028] 100. Fuselage; 110. Column;

[0029] 200. Flywheel assembly; 210. Main flywheel; 220. Secondary flywheel; 221. Connecting slot;

[0030] 300, screw; 310, mounting hole;

[0031] 400, slider;

[0032] 500. Workbench;

[0033] 600. Adjusting component; 610. Counterweight plate; 611. Receiving groove; 620. Iron core; 630. Inductor coil; 640. Magnetic plate;

[0034] 700. Load-bearing components;

[0035] 800. Connecting structure; 810. Top rod; 820. Pin; 830. Elastic element. Detailed Implementation

[0036] To make the above-mentioned objects, features, and advantages of the present invention more apparent and understandable, specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of the present invention. However, the present invention can be practiced in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0037] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0038] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0039] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0040] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0041] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0042] This invention provides a constant-rate forging servo press, such as... Figure 1 As shown, the constant-rate forging servo press includes a machine body 100, a flywheel assembly 200, a screw 300, a slider 400, and a worktable 500. The flywheel assembly 200 is rotatably coupled to the machine body 100; the screw 300 is connected to the flywheel assembly 200; the slider 400 is sleeved on the screw 300 and threadedly engaged with the screw 300; the worktable 500 and the slider 400 are spaced apart along the axial direction of the screw 300. The worktable 500 is used to support the workpiece. The flywheel assembly 200 can drive the screw 300 to rotate synchronously, so that the slider 400 moves along the axial direction of the screw 300 to press the workpiece; an adjusting component 600 is sleeved on the screw 300, and the adjusting component 600 can magnetically attract the slider 400 to increase the mass of the slider 400.

[0043] The aforementioned constant-rate forging servo press features a flywheel assembly 200 mounted on the machine body 100, with the flywheel assembly 200 and machine body 100 rotating in coordination. A screw 300 is connected to the flywheel assembly 200, and a slider 400 is fitted onto the screw 300, with the slider 400 and screw 300 threaded together. The worktable 500 and slider 400 are arranged at intervals along the axis of the screw 300. A workpiece is placed on the worktable 500. The flywheel assembly 200 drives the screw 300 to rotate synchronously, and the slider 400 moves along the axis of the screw 300, thereby forging the workpiece. An adjusting component 600 is fitted onto the screw 300 and magnetically attracted to the slider 400, thus changing the mass of the slider 400 and consequently altering the impact energy and impact speed. The constant-rate forging servo press provided in this application increases the impact energy and impact rate provided by the slider 400 by increasing the mass of the slider 400. It is suitable for workpieces with a wider range of requirements for impact energy and impact rate. For different workpieces, the adjusting component 600 is magnetically attracted to the slider 400 to change the impact energy and impact speed, thereby improving the pressing effect and enhancing the forming quality of the workpiece.

[0044] Specifically, such as Figure 1 and Figure 2 As shown, the adjusting component 600 includes a counterweight plate 610, an iron core 620, and an inductor coil 630. Both the inductor coil 630 and the iron core 620 are mounted on the counterweight plate 610, with the inductor coil 630 sleeved around the iron core 620. When energized, the inductor coil 630 generates a magnetic force on the iron core 620, causing the counterweight plate 610 to attract to the slider 400. When the inductor coil 630 is wound around the iron core 620 and energized, the iron core 620 generates a magnetic force, which attracts the adjusting component 600 to the slider 400, thereby increasing the weight of the slider 400.

[0045] In some embodiments, such as Figure 2 As shown, a receiving groove 611 is formed on the end face of the counterweight plate 610 near the slider 400, and both the inductor coil 630 and the iron core 620 are disposed in the receiving groove 611. The receiving groove 611 on the counterweight plate 610 facilitates the installation of the inductor coil 630 and the iron core 620. Furthermore, placing the receiving groove 611 on the end face of the counterweight plate 610 near the slider 400 brings the iron core 620 and the slider 400 closer, improving the magnetic attraction effect and enhancing the magnetic attraction stability between the adjusting component 600 and the slider 400.

[0046] In some embodiments, such as Figure 2As shown, the adjusting component 600 also includes a magnetic guide plate 640 disposed between the counterweight plate 610 and the slider 400. The magnetic guide plate 640 is connected to the counterweight plate 610 to block the receiving groove 611, and the iron core 620 and the magnetic guide plate 640 abut against the end face away from the slider 400. The magnetic guide plate 640 is provided to block the receiving groove 611, preventing the iron core 620 and the inductor coil 630 from moving out of the counterweight plate 610 through the receiving groove 611. Moreover, the magnetic guide plate 640 has a magnetic guiding function. The magnetic attraction force generated by the iron core 620 is transmitted to the magnetic guide plate 640, and the magnetic guide plate 640 can be directly attracted to the slider 400.

[0047] In some embodiments, such as Figure 1 As shown, the constant-rate forging servo press also includes a support member 700 mounted on the machine body 100 and capable of moving relative to the machine body 100. The support member 700 can move between the adjusting member 600 and the slider 400 to limit the attraction between the adjusting member 600 and the slider 400. By setting the support member 700, the support member 700 can move relative to the machine body 100, thereby moving between the adjusting member 600 and the slider 400. The two ends of the support member 700 abut against the adjusting member 600 and the slider 400 respectively, limiting the attraction between the adjusting member 600 and the slider 400. When the slider 400 and the adjusting member 600 are attracted, if it is necessary to reduce the current impact energy and impact speed of the constant-rate forging servo press for another workpiece, the support member 700 can be used to separate the adjusting member 600 and the slider 400 to reduce the impact energy and impact speed.

[0048] In some embodiments, such as Figure 1 As shown, the carrier 700 is rotatably connected to the machine body 100. The carrier 700 has an abutment portion extending radially along the screw 300. The carrier 700 can rotate relative to the machine body 100 so that the abutment portion is located between the adjusting member 600 and the slider 400. The carrier 700 is rotatably connected to the machine body 100, and the abutment portion of the carrier 700 has an abutment state and a non-abutment state. The carrier portion rotates relative to the machine body 100 to switch between the abutment state and the non-abutment state. When in the abutment state, the abutment portion is located between the adjusting member 600 and the slider 400, and both ends of the abutment portion abut against the adjusting member 600 and the slider 400 respectively, restricting the attraction between the adjusting member 600 and the slider 400. When in the non-abutment state, the abutment portion is located outside the machine body 100 to prevent it from obstructing the attraction between the adjusting member 600 and the slider 400.

[0049] More specifically, such as Figure 1As shown, the machine body 100 includes a column 110 extending along the axial direction, a support member 700 sleeved on the column 110 and rotatably engaged with the column 110, the abutting portion of the support member 700 extending along the radial direction of the screw 300, that is, extending along the radial direction of the column 110, the support member 700 rotating relative to the column 110, so that the abutting portion of the support member rotates between the adjusting member 600 and the slider 400.

[0050] In some embodiments, such as Figure 1 As shown, multiple adjusting members 600 are arranged sequentially along the axis of the screw 300. Adjacent adjusting members 600 are attracted to each other magnetically. The supporting member 700 can move between adjacent adjusting members 600 to limit their attraction. The multiple adjusting members 600, with adjacent members attracting each other and the adjusting member closest to the slider 400 also attracting it, mean that multiple adjusting members 600 are directly or indirectly attracted to the slider 400, further increasing the mass of the slider 400. The supporting member 700's ability to move between adjacent adjusting members 600 limits the number of adjusting members 600 attracted to the slider 400. By limiting the number of adjusting members 600 attracted to the slider 400, the striking power and striking rate of the slider 400 are adjusted.

[0051] Specifically, such as Figure 1 As shown, the support member 700 is slidably engaged with the column 110. The support member 700 can slide along the axial direction of the column 110, thereby moving between the two adjusting members 600 that need to limit the attraction. The adjusting member 600 rotates relative to the column 110, thereby causing the abutting part of the support member 700 to rotate between the adjusting member 600 and the slider 400.

[0052] In some embodiments, such as Figure 1 As shown, the adjusting member 600 is located between the flywheel assembly 200 and the slider 400, and can be magnetically attracted to the slider 400. In some embodiments, the adjusting member 600 can be located at any position, as long as it can be magnetically attracted to the slider 400.

[0053] In some embodiments, such as Figure 1 and Figure 3As shown, the flywheel assembly 200 includes a main flywheel 210 and a secondary flywheel 220. The main flywheel 210 is fixedly connected to the screw 300, and the secondary flywheel 220 is sleeved on the screw 300. The secondary flywheel 220 has a first state and a second state. When in the first state, there is a gap between the secondary flywheel 220 and the screw 300. When in the second state, the secondary flywheel 220 is connected to the screw 300 through the connecting structure 800. The main flywheel 210 is fixedly connected to the screw 300. The rotation of the main flywheel 210 can drive the screw 300 to rotate, so that the slider 400 moves along the axis of the screw 300. Different weights of the main flywheel 210 result in different forces provided to the screw 300 for rotation, and thus different impact energy and impact speed emitted by the slider 400. With the mass of the main flywheel 210 fixed, when the auxiliary flywheel 220 is also connected to the screw 300 (i.e., in the second state), the auxiliary flywheel 220 can also rotate, thereby driving the screw 300 to rotate. The main flywheel 210 and the auxiliary flywheel 220 work together to adjust the force provided by the flywheel assembly 200 to the screw 300, thus adjusting the impact energy and impact speed emitted by the slider 400. It can be understood that when the auxiliary flywheel 220 is in the first state, it is merely fitted onto the screw 300, but there is no connection between the auxiliary flywheel 220 and the screw 300; only the main flywheel 210 can drive the screw 300 to rotate. When the auxiliary flywheel 220 is in the second state, it is connected to the screw 300 through the connecting structure 800, and the main flywheel 210 and the auxiliary flywheel 220 together drive the screw 300 to rotate.

[0054] Specifically, such as Figure 1 and Figure 3 As shown, the connecting structure 800 includes a push rod 810 and a pin 820. A mounting hole 310 extending along the axis of the screw 300 is provided within the screw 300. The push rod 810 is disposed within the mounting hole 310 and slides against the wall of the mounting hole 310. The pin 820 is inserted into the mounting hole 310 and slides against the screw 300. In the first state, the pin 820 is located within the screw 300. In the second state, the pin 820 passes through the screw 300 and is inserted into the secondary flywheel 220. The push rod 810 is used to push the pin 820 to slide. The push rod 810 slides within the mounting hole 310, thereby pushing the pin 820 inserted in the mounting hole 310 to move, so that the pin 820 is inserted into the secondary flywheel 220, thus connecting the screw 300 and the secondary flywheel 220.

[0055] Specifically, an auxiliary flywheel 220 is connected to the screw 300 through multiple pins 820, and the multiple pins 820 are distributed circumferentially along the screw 300. When the push rod 810 slides in the mounting hole 310, it simultaneously pushes the multiple pins 820 to slide together, thereby realizing the connection between the auxiliary flywheel 220 and the screw 300.

[0056] More specifically, a plurality of pins 820 are distributed circumferentially along the screw 300, and the ends of the plurality of pins 820 inserted into the mounting holes 310 are arranged in a ring. The diameter of the end of the push rod 810 near the pins 820 is smaller than the diameter of the aforementioned ring, so that the push rod 810 is inserted into the ring.

[0057] For example, a secondary flywheel 220 is provided with multiple pins 820, and the multiple pins 820 are distributed around the circumference of the screw 300. The end of the push rod 810 near the pins 820 is tapered. When the push rod 810 slides along the mounting hole 310, it is easy to push the multiple pins 820 into the mounting hole 310 to realize the connection between the screw 300 and the secondary flywheel 220.

[0058] Specifically, such as Figure 3 As shown, the connecting structure 800 also includes an elastic element 830. A insertion groove 221 is provided on the inner circumferential surface of the secondary flywheel 220 near the screw 300. The elastic element 830 is disposed within the insertion groove 221, with one end connected to the groove wall of the insertion groove 221 and the other end abutting against the pin 820. By providing the insertion groove 221 on the secondary flywheel 220 and the elastic element 830 within it, when the push rod 810 does not push the pin 820, the elastic element 830 pushes the pin 820 to reset, thus placing the pin 820 in a first state.

[0059] Specifically, multiple auxiliary flywheels 220 are provided, distributed along the axial direction of the screw 300, and each auxiliary flywheel 220 can be connected to the screw 300 via a pin 820. Each auxiliary flywheel 220 is provided with a insertion slot 221, and each insertion slot 221 is equipped with a corresponding elastic element 830 for pushing the pin 820 to reset.

[0060] For example, such as Figure 3 As shown, the secondary flywheel 220 has three parts, and the push rod 810 points downwards (as shown). Figure 3 As shown below, the push rod 810 slides downwards, generating a radial thrust on the pin 820 along the screw 300. This pushes the corresponding pin 820 on the first auxiliary flywheel 220 to slide radially along the screw 300, causing the pin 820 to extend out of the mounting hole 310 and insert into the auxiliary flywheel 220, connecting the first auxiliary flywheel 220 and the screw 300. At this time, the pin 820 abuts against the elastic element 830, causing the elastic element 830 to be in a compressed state. The push rod 810 continues to slide downwards, sequentially pushing the second auxiliary flywheel 220 and the screw 300 to connect, and the third auxiliary flywheel 220 and the screw 300 to connect.

[0061] For example, when the secondary flywheel 220 and the screw 300 are connected by the pin 820, the push rod 810 moves upward (as shown). Figure 3The pin 820 slides (as shown above) so that no radial thrust is generated on the screw 300 along the pin 820. At this time, the elastic element 830 is reset, and the pin 820 slides radially along the screw 300 under the action of the elastic element 830 so that the pin 820 is located inside the screw 300.

[0062] It is understandable that the pin 820 is located inside the screw 300, and it is only necessary to ensure that the end of the pin 820 does not extend beyond the outer circumference of the screw 300.

[0063] Preferably, in the hot forging process: Forging a upset cylinder into a pre-forged part requires 60 kJ of deformation energy. The appropriate forming rate in this process corresponds to a slider impact rate of 500 mm / s. Forging the pre-forged part into a final forged part requires 100 kJ of deformation energy. The appropriate forming rate in this process also corresponds to a slider impact rate of 500 mm / s. In the pre-forging process, the impact energy to impact rate ratio is 0.24. To ensure the forging obtains appropriate deformation energy and deformation rate in the final forging process, the electrical control system energizes the inductor coil 630, and the adjusting component 600 is connected to the slider 400. At this time, the mass of the slider 400 increases, according to the proportionality coefficient calculation formula:

[0064]

[0065] At this point, the proportionality coefficient k will increase to 0.4, which enables the final forging to be formed under an impact energy of 100kJ and an impact rate of 500mm / s. This allows the workpiece to obtain the optimal forming process parameters during both the pre-forging and final forging processes, thereby improving the forming quality of the workpiece and the service life of the die.

[0066] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0067] The embodiments described above are merely illustrative of several implementations of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the invention patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. Therefore, the protection scope of this invention patent should be determined by the appended claims.

Claims

1. An isorating servo press characterized by, include: fuselage (100); The flywheel assembly (200) rotates in conjunction with the fuselage (100); A screw (300) is connected to the flywheel assembly (200); A slider (400) is sleeved on the screw (300) and threadedly engaged with the screw (300); The worktable (500) and the slider (400) are spaced apart along the axial direction of the screw (300). The worktable (500) is used to carry the workpiece. The flywheel assembly (200) can drive the screw (300) to rotate synchronously, so that the slider (400) moves along the axial direction of the screw (300) to press the workpiece. An adjusting element (600) is sleeved on the screw (300). The adjusting element (600) can be attracted to the slider (400) by magnetic attraction to increase the mass of the slider (400). The flywheel assembly (200) includes a main flywheel (210) and a secondary flywheel (220). The main flywheel (210) is fixedly connected to the screw (300), and the secondary flywheel (220) is sleeved on the screw (300). The secondary flywheel (220) has a first state and a second state. When it is in the first state, there is a gap between the secondary flywheel (220) and the screw (300). When it is in the second state, the secondary flywheel (220) is connected to the screw (300) through a connecting structure (800). The connection structure (800) includes: The push rod (810) has a mounting hole (310) extending along its axis inside the screw (300). The push rod (810) is disposed in the mounting hole (310) and slides in cooperation with the hole wall of the mounting hole (310). A pin (820) is inserted into the mounting hole (310) and slides with the screw (300). When in the first state, the pin (820) is located in the screw (300). When in the second state, the pin (820) passes through the screw (300) and is inserted into the secondary flywheel (220). The push rod (810) is used to push the pin (820) to slide.

2. The constant rate forging servo press according to claim 1, wherein The adjusting component (600) includes a counterweight plate (610), an iron core (620), and an inductor coil (630). The inductor coil (630) and the iron core (620) are both mounted on the counterweight plate (610), and the inductor coil (630) is sleeved on the iron core (620). When energized, the inductor coil (630) is used to generate a magnetic attraction force on the iron core (620) so that the counterweight plate (610) and the slider (400) are attracted to each other.

3. The constant rate forging servo press according to claim 2, wherein The counterweight plate (610) has a receiving groove (611) on the end face near the slider (400), and the inductor coil (630) and the iron core (620) are both disposed in the receiving groove (611).

4. The constant rate forging servo press according to claim 3, wherein The adjusting member (600) further includes a magnetic guide plate (640) disposed between the counterweight plate (610) and the slider (400). The magnetic guide plate (640) is connected to the counterweight plate (610) to block the receiving groove (611), and the iron core (620) and the magnetic guide plate (640) abut against the end face away from the slider (400).

5. The constant-rate forging servo press according to claim 1, characterized in that, It also includes a carrier (700) mounted on the body (100) and movable relative to the body (100), the carrier (700) being movable between the adjusting member (600) and the slider (400) to limit the attraction between the adjusting member (600) and the slider (400).

6. The constant-rate forging servo press according to claim 5, characterized in that, The support member (700) is rotatably connected to the body (100). The support member (700) has an abutment portion extending in a direction away from the body (100). The support member (700) is rotatable relative to the body (100) so that the abutment portion is located between the adjusting member (600) and the slider (400).

7. The constant-rate forging servo press according to claim 5, characterized in that, Multiple adjustment members (600) are provided, and the multiple adjustment members (600) are arranged sequentially along the axial direction of the screw (300). Adjacent adjustment members (600) can be attracted to each other by magnetic attraction. The bearing member (700) can move between adjacent adjustment members (600) to restrict the attraction between adjacent adjustment members (600).

8. The constant-rate forging servo press according to claim 1, characterized in that, The connection structure (800) also includes an elastic element (830). The inner circumferential surface of the secondary flywheel (220) near the screw (300) is provided with a plug groove (221). The elastic element (830) is disposed in the plug groove (221), and one end of the elastic element (830) is connected to the groove wall of the plug groove (221), and the other end can abut against the pin (820).

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