Double-drive servo press

Abstract

The invention discloses a double-drive servo press. The double-drive servo press comprises a rack, an upper punching device, a lower punching device, a feeding device and a die core. The upper punching device comprises two sets of driving mechanisms and an upper punching assembly, and the two sets of driving mechanisms are fixed to the top end of the rack and arranged in the X-axis direction. The lower punching device is composed of three stacked lower punching mechanisms, each mechanism is provided with a lower punching plate and two sets of driving mechanisms, the driving mechanisms are all arranged at the bottom of the rack, the lower punching plates of the three lower punching mechanisms are stacked in the Z-axis direction and connected to the two corresponding sets of driving mechanisms respectively, and the mold core is located in the center of the bottom of the rack and penetrates through the lower punching plates. The feeding device is installed on the side wall of the rack, and the feeding end of the feeding device is located on the upper surface of the third lower punching plate. The upper mechanism and the three sets of lower punching mechanisms are each provided with a dual-drive mechanism, the pressure range and synchronism of the press are improved, and meanwhile the size is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of servo presses, and in particular to a dual-drive servo press. Background Art

[0002] The servo press is a commonly used equipment for powder metallurgy, cemented carbide powder and other molding. It mainly drives the transmission device through the servo electric cylinder to apply pressure to the powder in the mold to shape the powder in the mold. Due to its high control accuracy and high product molding accuracy, it is widely used in the powder metallurgy industry.

[0003] The servo press in the prior art is usually driven by a single drive method, which not only has a small pressure range and poor synchronization, but also requires replacing a larger servo press if the pressure range of the press needs to be increased, resulting in a large overall size of the servo press. Summary of the invention

[0004] In view of the shortcomings of the prior art, the present invention provides a dual-drive servo press, comprising: a frame, an upper punch device, a lower punch device, a feeding device and a mold core, the upper punch device comprises two sets of upper punch driving mechanisms and an upper punch assembly, one end of the two sets of upper punch driving mechanisms is fixed to the top of the frame and arranged along the X-axis direction, and the other end thereof is vertically downward, and the upper punch assembly is transmission-mounted on the upper punch driving mechanism;

[0005] The down-punch device comprises a first down-punch mechanism, a second down-punch mechanism and a third down-punch mechanism stacked along the Z-axis direction;

[0006] The first punch mechanism includes a first punch plate and two sets of first punch driving mechanisms, the second punch mechanism includes a second punch plate and two sets of second punch driving mechanisms, and the third punch mechanism includes a third punch plate and two sets of third punch driving mechanisms, wherein the first punch driving mechanism, the second punch driving mechanism and the third punch driving mechanism are all arranged at the bottom of the frame, and the first punch plate, the second punch plate and the third punch plate are arranged in sequence along the Z-axis direction and are respectively connected to the first punch driving mechanism, the second punch driving mechanism and the third punch driving mechanism;

[0007] The mold core is arranged at the center of the bottom of the frame, and one end of the mold core passes through the first lower punch plate, the second lower punch plate and the third lower punch plate in sequence until it is flush with the upper surface of the third lower punch plate;

[0008] The feeding device is installed on the side wall of the frame, and its feeding end is located on the upper surface of the third lower punch plate and reciprocates on the third upper punch plate, and its movement path passes through one end of the mold core.

[0009] According to one embodiment of the present invention, the top of the frame has a top partition and two first mounting seats, the two first mounting seats are installed on the top of the frame and arranged along the X-axis direction, the top partition is located below the first mounting seat, and a top mounting space is formed between it and the first mounting seat, the upper punch driving mechanism is installed on the first mounting seat, one end of which passes through the mounting space, the upper punch device also includes an upper punch movable mechanism, the upper punch movable mechanism includes a movable plate and two connecting shaft assemblies, the upper punch movable plate is located in the mounting space, and is connected to the driving end of the upper punch driving mechanism, one end of the two connecting shaft assemblies is installed on the upper punch movable plate, and the other end passes through the top partition to be exposed toward the lower punch device, and the upper punch assembly is installed at the other end thereof.

[0010] According to one embodiment of the present invention, a support plate is provided at the bottom of the frame, two groups of first down-punch driving mechanisms are arranged on the support plate along the X-axis direction, the first down-punch plate is installed on the driving ends of the two groups of first down-punch driving mechanisms, two groups of second down-punch driving mechanisms are also arranged on the supported plate, and are arranged along one of the diagonals of the support plate, and their driving ends pass through the first down-punch plate, the second down-punch plate is installed on the driving end of the second down-punch driving mechanism, the two groups of down-punch driving mechanisms are arranged on the support plate along the other diagonal of the support plate, and one end thereof passes through the first down-punch plate and the second down-punch plate in sequence, the third down-punch plate is installed on the driving end of the third down-punch driving mechanism, and the mold core is installed at the center of the support plate.

[0011] According to one embodiment of the present invention, a core mounting seat is provided at the center of the support plate, and a through hole facing the core mounting seat is provided at the center of the first lower punch plate, the second lower punch plate and the third lower punch plate. The core is installed on the core mounting seat and passes through the first lower punch plate, the second lower punch plate and the third lower punch plate in sequence through the through hole.

[0012] According to one embodiment of the present invention, the feeding device includes a hopper, a material box driving mechanism and a material box. The hopper and the material box driving mechanism are fixed to the side walls of the frame, and the hopper is located above the material box driving mechanism. The material box is located on the third lower punch plate. The material box driving mechanism is driven and connected to the material box. The material box is on the upper surface of the third lower punch plate along the Y-axis direction. The through hole of the third lower punch plate is located on the moving path of the material box. The hopper is connected to the material box and transports the powder to the material box.

[0013] According to one embodiment of the present invention, the material box driving mechanism includes a rotary driving component, a first driving arm and a second driving arm. The rotary driving component is arranged on the side wall of the frame, one end of the first driving arm is installed on the driving end of the rotary driving mechanism, one end of the second driving arm is rotatably connected to one end of the first driving arm, and the other end is rotatably connected to the material box.

[0014] According to one embodiment of the present invention, the material box driving mechanism also includes a material box stabilizing mechanism, which includes a suspension and a material box stabilizing drive assembly, the suspension is suspended on the side of the lower surface of the partition close to the hopper, one end of the material box stabilizing drive is rotatably connected to the suspension, a rotating connecting block is provided on the second driving arm, the rotating connecting block is rotatably connected to the second driving arm, and the driving end of the material box stabilizing drive is connected to the rotating connecting block.

[0015] According to one embodiment of the present invention, the upper surface of the third lower punch plate has two guide bars, which are arranged on both sides of the through hole along the X direction, each guide bar is set along the Y axis direction, and the material box moves between the two guide bars.

[0016] According to one embodiment of the present invention, the third lower punch plate is also provided with a material receiving box, which is suspended at one end of the third lower punch plate close to the material box driving mechanism and is located at one end of the material box movement path. Its upper surface has a collecting port, and the collecting port is flush with the upper surface of the third lower punch plate.

[0017] According to one embodiment of the present invention, the upper punch movable mechanism further includes two load sensors, which are disposed between the connecting shaft assembly and the upper punch assembly, and whose two ends are respectively connected to the connecting shaft assembly and the upper punch assembly.

[0018] The beneficial effect of the present invention is that by having two sets of driving mechanisms in the upper punch assembly, the first lower punch plate, the second lower punch plate and the third lower punch plate, not only the pressure range and synchronization of the press are effectively improved, but also the volume of the press is effectively reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0020] Figure 1 It is a schematic diagram of the structure of a dual-drive servo press in the embodiment;

[0021] Figure 2 Schematic diagram of the internal structure of the dual-drive servo press in the embodiment;

[0022] Figure 3 It is a schematic diagram of the structure of the lower punch device in the embodiment;

[0023] Figure 4 for Figure 2 Enlarged view of part A in the middle;

[0024] Figure 5 Schematic diagram of the distribution structure of the first downstroke driving mechanism, the second downstroke driving mechanism and the third downstroke driving mechanism in the embodiment. DETAILED DESCRIPTION

[0025] The following will disclose multiple embodiments of the present invention with drawings. For the purpose of clear description, many practical details will be described together in the following description. However, it should be understood that these practical details should not be used to limit the present invention. That is, in some embodiments of the present invention, these practical details are not necessary. In addition, for the purpose of simplifying the drawings, some conventional structures and components will be depicted in a simple schematic manner in the drawings.

[0026] In addition, in the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes, and do not specifically refer to the order or sequence, nor are they used to limit the present invention. They are only used to distinguish components or operations described with the same technical terms, and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0027] See also Figure 1-Figure 5 , Figure 1 This is a schematic diagram of the structure of a dual-drive servo press in the embodiment. Figure 2 This is a schematic diagram of the internal structure of the dual-drive servo press in the embodiment. Figure 3 This is a schematic diagram of the structure of the lower punch device in the embodiment. Figure 4 for Figure 2 Enlarged view of part A in the middle. Figure 5 Schematic diagram of the distribution structure of the first lower punch drive mechanism, the second lower punch drive mechanism and the third lower punch drive mechanism in the embodiment. In this example, a dual-drive servo press includes a frame 1, an upper punch device 2, a lower punch device 3, a feeding device 4 and a mold core 5. The upper punch device 2 includes two sets of upper punch drive mechanisms 21 and upper punch assemblies 22. One end of the two sets of upper punch drive mechanisms 21 is fixed to the top of the frame 1 and arranged along the X-axis direction, and the other end thereof is vertically downward. The upper punch assembly 22 is transmission-mounted on the upper punch drive mechanism 21.

[0028] The lower punch device 3 includes a first lower punch mechanism 31, a second lower punch mechanism 32 and a third lower punch mechanism 33 stacked in the Z-axis direction, the first lower punch mechanism 31 includes a first lower punch plate 311 and two sets of first lower punch driving mechanisms 312, the second lower punch mechanism 32 includes a second lower punch plate 321 and two sets of second lower punch driving mechanisms 312, the third lower punch mechanism 33 includes a third lower punch plate 331 and two sets of third lower punch driving mechanisms 332, wherein the first lower punch driving mechanism 312, the second lower punch driving mechanism 322 and the third lower punch driving mechanism 332 are all arranged at the bottom of the frame 1, and the first lower punch plate 3 11. The second lower punch plate 321 and the third lower punch plate 331 are arranged in sequence along the Z-axis direction and are respectively connected to the first lower punch drive mechanism 312, the second lower punch drive mechanism 322 and the third lower punch drive mechanism 332. The mold core 5 is arranged at the bottom center of the frame 1, and one end thereof passes through the first lower punch plate 311, the second lower punch plate 321 and the third lower punch plate 331 in sequence until it is flush with the upper surface of the third lower punch plate 331. The feeding device 4 is installed on the side wall of the frame 1, and its feeding end 41 is located on the upper surface of the third lower punch plate 331, and reciprocates on the third upper punch plate 331, and its movement path passes through one end of the mold core 5. In this example, the mold core 5 includes a mold core drive 51 and a mold core rod (not shown in the figure), and the mold drive 51 is a cylinder, which is used for demolding the mold core rod.

[0029] During operation, the feeding device 4 pushes the powder into the mold core 5, and the two sets of upper punch driving mechanisms 21 jointly drive the upper punch assembly 22 to punch the powder in the mold core 5. When the upper punch assembly 22 moves to the third lower punch plate 331, the powder is initially formed in the mold core 5. At this time, the two sets of third lower punch driving mechanisms 332 drive the third lower punch plate 331 to descend, so that the upper punch assembly 22 further compresses the powder in the mold core 5 to increase the product density. When the third lower punch plate 331 approaches the second lower punch plate 321, the second lower punch driving mechanism 332 drives the second lower punch plate 321 to move downward, so that the upper punch assembly 2 2 further compresses the powder in the mold core 5 to further increase the density of the product. Similarly, when the second lower punch plate 321 approaches the first lower punch plate 311, the first lower punch driving assembly 312 drives the first lower punch plate 311 to descend, so that the powder is further compressed to reach the required density to complete the final molding of the product. At this time, the upper punch assembly 22, the first upper punch plate 311, the second upper punch plate 321 and the third upper punch plate 331 are reset, and the mold core driving 51 demolds and pushes out the product in the mold core rod (not shown), and the powder is filled in the feeding device 4 to push out and collect the molded product, that is, the powder molding of the product is completed. Among them, the mold core driving 51 is a cylinder.

[0030] In this example, the upper punch assembly 22, the first lower punch plate 311, the second lower punch plate 321 and the third lower punch plate 331 all have two sets of driving mechanisms, which not only effectively improves the pressure range and synchronization of the press, but also effectively reduces the size of the press.

[0031] In this example, the upper punch driving mechanism 21 , the first lower punch driving mechanism 312 , the second lower punch driving mechanism 322 , and the third lower punch driving mechanism 332 all adopt servo electric cylinders.

[0032] Specifically, the top of the frame 1 has a top partition 11 and two first mounting seats 12, the two first mounting seats 12 are installed on the top of the frame 1 and arranged along the X-axis direction, the top partition 11 is located below the first mounting seat 12, and a top mounting space 13 is formed between the top partition 11 and the first mounting seat 12, the upper punch driving mechanism 21 is installed on the first mounting seat 12, one end of which passes through the mounting space 13, and the upper punch device 2 also includes an upper punch movable mechanism 23, the upper punch movable mechanism 23 includes a movable plate 231 and two connecting shaft assemblies 232, the upper punch movable plate 231 is located in the mounting space 13, and is connected to the driving end of the upper punch driving mechanism 21, one end of the two connecting shaft assemblies 232 is installed on the upper punch movable plate 231, and the other end passes through the top partition 11 to expose toward the lower punch device 3, and the upper punch assembly 22 is installed at the other end thereof. During operation, the upper punch driving mechanism 22 drives the movable plate 231 to move, so that the movable plate 231 drives the connecting shaft assembly 232 to drive the stamping assembly 22 to perform stamping. In this example, the stamping assembly 22 includes a stamping plate 221 and a punch mounting seat 222, wherein one side of the stamping plate 221 is connected to the connecting shaft assembly 232, and the punch mounting seat 222 is installed on the other side of the stamping plate 221 and is opposite to the mold core 5. The punch mounting seat 222 can be used to install the punch.

[0033] The frame 1 has a support plate 14 at the bottom, two groups of first lower punch drive mechanisms 312 are arranged on the support plate 14 along the X-axis direction, the first lower punch plate 311 is installed on the driving ends of the two groups of first lower punch drive mechanisms 312, two groups of second lower punch drive mechanisms 322 are also arranged on the supported plate 14, and are arranged along one of the diagonals of the support plate 14, and their driving ends pass through the first lower punch plate 311, the second lower punch plate 321 is installed on the driving end of the second lower punch drive mechanism 322, two groups of lower punch drive mechanisms 332 are arranged on the support plate 14 along the other diagonal of the support plate 14, one end of which passes through the first lower punch plate 311 and the second lower punch plate 321 in sequence, the third lower punch plate 331 is installed on the driving end of the third lower punch drive mechanism 332, and the core 5 is installed at the center of the support plate 14. It can be understood that this distribution method of the two groups of first lower punch drive mechanisms 312, the two groups of second lower punch drive mechanisms 322 and the two groups of third lower punch drive mechanisms 332 can not only improve the compactness of their distribution and further reduce the size of the press, but also effectively ensure the synchronization of the first lower punch plate 311, the second lower punch plate 321 and the third lower punch plate 331.

[0034] Furthermore, the support plate 14 has a core mounting seat 141 at the center, and the first lower punch plate 311, the second lower punch plate 321 and the third lower punch plate 331 all have through holes facing the core mounting seat 141 at the center. The core 5 is mounted on the core mounting seat 141 and passes through the first lower punch plate 311, the second lower punch plate 321 and the third lower punch plate 331 in sequence through the through holes. Specifically, the support plate 14 also has a core fixing frame 142, which is mounted above the core mounting seat 141, and the core driver 51 is mounted on the core mounting seat 141, one end of which passes through the core fixing frame 142, and one end of the mold core rod (not shown) is fixed to the mold fixing frame 142, and the other end passes through the through holes of the first lower punch plate 311, the second lower punch plate 321 and the third lower punch plate 331 in sequence.

[0035] Further, the feeding device 4 includes a hopper 41, a material box driving mechanism 42 and a material box 43, the hopper 41 and the material box driving mechanism 42 are fixed to the side wall of the frame 1, and the hopper 41 is located above the material box driving mechanism 42, the material box 43 is located on the third lower punch plate 331, the material box driving mechanism 42 is drivingly connected to the material box 43, the material box 43 is on the upper surface of the third lower punch plate 331 along the Y-axis direction, the through hole of the third lower punch plate 331 is located on the moving path of the material box 43, the hopper 41 is connected to the material box 43 and the powder is transported to the material box 43. In specific implementation, a hose can be used to connect the hopper 41 and the material box 43. Specifically, the material box driving mechanism 42 includes a rotating driving component 421, a first driving arm 422 and a second driving arm 423. The rotating driving component 421 is arranged on the side wall of the frame 1, one end of the first driving arm 422 is installed on the driving end of the rotating driving mechanism 421, one end of the second driving arm 423 is rotatably connected to one end of the first driving arm 422, and the other end is rotatably connected to the material box 43. During operation, the hopper 41 is used to store powder. At this time, the powder in the hopper 41 is transported to the material box 43 through the hose connected to the material box 43, and the powder can be exposed on the third lower punch plate 331 at the bottom of the material box 43. At this time, the rotary drive assembly 421 drives the first drive arm 422 to make a circular motion, thereby driving the second drive arm 423 to reciprocate on the third lower punch plate 331, so that the material box 43 reciprocates on the third lower punch plate 331. During the process, when the material box 43 passes through the mold core 5, its powder falls into the mold core 5, so that the filling work of the mold core 5 can be completed.

[0036] Preferably, the material box driving mechanism 42 also includes a material box stabilizing mechanism 424, which includes a suspension 4241 and a material box stabilizing drive assembly 4242, the suspension 4241 is suspended on the lower surface of the partition 11 on one side close to the hopper 41, one end of the material box stabilizing drive 4242 is rotatably connected to the suspension 4241, a rotatable connecting block 4231 is provided on the second driving arm 423, the rotatable connecting block 4231 is rotatably connected to the second driving arm 423, and the driving end of the material box stabilizing drive 4242 is connected to the rotatable connecting block 4231. In this example, the material box stabilizing drive 4242 is a cylinder. When the material box 43 reciprocates on the third lower punch plate 331, the driving end of the material box stabilizing drive 4242 pushes the rotating connecting block 4231 downward. In this way, the second driving arm 423 swings within the swing range of the rotating connecting block 4231 and the material box stabilizing drive 4242, so that the material box 43 is close to the upper surface of the third lower punch plate 331 when it reciprocates on the third lower punch plate 331, thereby ensuring the stability of the movement of the material box 43.

[0037] Preferably, the upper surface of the third lower punch plate 331 has two guide bars 3311, the two guide bars 3311 are arranged on both sides of the through hole along the X direction, each guide bar 3311 is arranged along the Y axis direction, and the material box 43 moves between the two guide bars 3311. It can be understood that the two guide bars 3311 form a guide groove on the third lower punch plate 331 to limit the movement direction of the material box 43, prevent the material box 43 from deflecting, and further improve the movement stability of the material box 43.

[0038] Furthermore, the third lower punch 331 is also provided with a material receiving box 3312, which is suspended at one end of the third lower punch 331 close to the material box driving mechanism 42 and located at one end of the movement path of the material box 43, and has a collecting port 33121 on its upper surface, which is flush with the upper surface of the third lower punch 331. It can be understood that when the material box 43 moves toward the rotating driving mechanism 421, the material box 43 will push the excess powder into the material receiving box 3312 for collection, thereby preventing the waste of powder and improving the utilization rate of the powder.

[0039] Preferably, the upper punch movable mechanism 23 further includes two load sensors 233, which are arranged between the connecting shaft assembly 232 and the upper punch assembly 22, and the two ends of which are respectively connected to the connecting shaft assembly 232 and the upper punch assembly 22. When the upper punch movable plate 231 drives the connecting shaft assembly 232 to drive the upper punch assembly 22 to perform stamping, the load sensor 233 simultaneously detects the pressure value between the connecting shaft assembly 232 and the upper punch assembly 22, and feeds back to the external control system, so that the upper punch driving mechanism 21 adjusts the pressure output according to the change of the pressure value, thereby improving the stamping accuracy.

[0040] Preferably, the upper punch device 2 is also provided with a plurality of upper punch guide columns 24, which are located in the installation space 13 and arranged circumferentially along the upper punch driving mechanism 21. The two ends of the upper punch guide columns 24 are respectively fixed to the top partition 11 and the top of the frame 1, and the upper punch movable plate 231 is slidably connected to the plurality of upper punch guide columns 24. In this way, when the upper punch movable plate 231 moves, it slides along the upper punch guide columns 24 to prevent the upper punch movable plate 231 from being swung and ensure the stability of its movement.

[0041] Preferably, the down-punch device 3 also includes a plurality of down-punch guide columns 34, one end of which is fixed to the four corners of the support plate 14, and the other end is fixed to the lower surface of the top partition 11, wherein the first down-punch plate 311, the second down-punch plate 321, the third down-punch plate 332, and the upper punch plate 221 are slidably connected to the down-punch guide columns 34 to further improve the stability of the first down-punch plate 311, the second down-punch plate 321, the third down-punch plate 332, and the upper punch plate 221.

[0042] In summary, in this example, the upper punch assembly, the first lower punch plate, the second lower punch plate and the third lower punch plate all have two sets of driving mechanisms, which not only effectively improves the pressure range and synchronization of the press, but also effectively reduces the size of the press.

[0043] The above description is only an embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent substitution, improvement, etc. made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.

Claims

1. A dual-drive servo press, characterized in that: include: A frame, an upper punch device, a lower punch device, a feeding device and a mold core, wherein the upper punch device comprises two sets of upper punch driving mechanisms and an upper punch assembly, one end of the two sets of upper punch driving mechanisms is fixed to the top of the frame and arranged along the X-axis direction, and the other end thereof is vertically downward, and the upper punch assembly is transmission-mounted on the upper punch driving mechanism; The down-punch device comprises a first down-punch mechanism, a second down-punch mechanism and a third down-punch mechanism stacked along the Z-axis direction; The first punch mechanism includes a first punch plate and two sets of first punch drive mechanisms, the second punch mechanism includes a second punch plate and two sets of second punch drive mechanisms, and the third punch mechanism includes a third punch plate and two sets of third punch drive mechanisms, wherein the first punch drive mechanism, the second punch drive mechanism and the third punch drive mechanism are all arranged at the bottom of the frame, and the first punch plate, the second punch plate and the third punch plate are arranged in sequence along the Z-axis direction and are respectively connected to the first punch drive mechanism, the second punch drive mechanism and the third punch drive mechanism; The mold core is arranged at the center of the bottom of the frame, and one end of the mold core passes through the first lower punch plate, the second lower punch plate and the third lower punch plate in sequence until it is flush with the upper surface of the third lower punch plate; The feeding device is installed on the side wall of the frame, and its feeding end is located on the upper surface of the third lower punch plate, and reciprocates on the third upper punch plate, and its movement path passes through one end of the mold core.

2. The dual-drive servo press according to claim 1, characterized in that: The top of the frame has a top partition and two first mounting seats, the two first mounting seats are installed on the top of the frame and are arranged along the X-axis direction, the top partition is located below the first mounting seat, and a top mounting space is formed between it and the first mounting seat, the upper punch driving mechanism is installed on the first mounting seat, one end of which passes through the mounting space, the upper punch device also includes an upper punch movable mechanism, the upper punch movable mechanism includes a movable plate and two connecting shaft assemblies, the upper punch movable plate is located in the mounting space and is connected to the driving end of the upper punch driving mechanism, one end of the two connecting shaft assemblies is installed on the upper punch movable plate, and the other end passes through the top partition to be exposed toward the lower punch device, and the upper punch assembly is installed at the other end thereof.

3. The dual-drive servo press according to claim 2, characterized in that: The bottom of the frame has a support plate, two groups of first down-punch drive mechanisms are arranged on the support plate along the X-axis direction, the first down-punch plate is installed on the driving ends of the two groups of the first down-punch drive mechanisms, two groups of second down-punch drive mechanisms are also arranged on the support plate, and are arranged along one of the diagonals of the support plate, and their driving ends pass through the first down-punch plate, the second down-punch plate is installed on the driving end of the second down-punch drive mechanism, two groups of down-punch drive mechanisms are arranged on the support plate along the other diagonal of the support plate, and one end thereof passes through the first down-punch plate and the second down-punch plate in sequence, the third down-punch plate is installed on the driving end of the third down-punch drive mechanism, and the mold core is installed at the center of the support plate.

4. The dual-drive servo press according to claim 3, characterized in that: A core mounting seat is provided at the center of the support plate, and a through hole facing the core mounting seat is provided at the center of the first lower punch plate, the second lower punch plate and the third lower punch plate. The core is installed on the core mounting seat and passes through the first lower punch plate, the second lower punch plate and the third lower punch plate in sequence through the through hole.

5. The dual-drive servo press according to claim 4, characterized in that: The feeding device includes a hopper, a material box driving mechanism and a material box, the hopper and the material box driving mechanism are fixed to the side wall of the frame, and the hopper is located above the material box driving mechanism, the material box is located on the third lower punch plate, the material box driving mechanism is driven and connected to the material box, the material box is on the upper surface of the third lower punch plate along the Y-axis direction, the through hole of the third lower punch plate is located on the moving path of the material box, the hopper is connected to the material box and transports the powder to the material box.

6. The dual-drive servo press according to claim 5, characterized in that: The material box driving mechanism includes a rotating driving component, a first driving arm and a second driving arm. The rotating driving component is arranged on the side wall of the frame. One end of the first driving arm is installed on the driving end of the rotating driving mechanism. One end of the second driving arm is rotatably connected to one end of the first driving arm, and the other end is rotatably connected to the material box.

7. The dual-drive servo press according to claim 6, characterized in that: The material box driving mechanism also includes a material box stabilizing mechanism, which includes a suspension and a material box stabilizing drive assembly, the suspension is suspended on the side of the lower surface of the partition close to the hopper, one end of the material box stabilizing drive is rotatably connected to the suspension, a rotating connecting block is provided on the second driving arm, and the rotating connecting block is rotatably connected to the second driving arm, and the driving end of the material box stabilizing drive is connected to the rotating connecting block.

8. The dual-drive servo press according to claim 7, characterized in that: The upper surface of the third lower punch plate has two guide bars, which are arranged on both sides of the through hole along the X direction, each guide bar is arranged along the Y axis direction, and the material box moves between the two guide bars.

9. The dual-drive servo press according to claim 8, characterized in that: The third lower punch is also provided with a material receiving box, which is suspended at one end of the third lower punch close to the material box driving mechanism and located at one end of the material box movement path, and has a collecting port on its upper surface, which is flush with the upper surface of the third lower punch.

10. The dual-drive servo press according to claim 3, characterized in that: The upper punch movable mechanism also includes two load sensors, which are arranged between the connecting shaft assembly and the upper punch assembly, and whose two ends are respectively connected to the connecting shaft assembly and the upper punch assembly.

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