Metal shearing machine

Abstract

The invention discloses a metal shearing machine, which is used for packaging and shearing raw materials, and comprises a compression assembly, a shearing assembly and a shearing assembly, the shearing device is used for cutting the raw materials compressed by the compression assembly; and the material pushing assembly is used for pushing the raw materials compressed by the compression assembly, so that the raw materials are pushed into the shearing device to be sheared. According to the metal shearing machine with the shearing and packaging functions, pre-compression and continuous feeding of raw materials can be achieved, the productivity of the metal shearing machine is improved, the function of equipment is changed into the function of compression packaging and shearing, the metal shearing machine has multiple purposes, and benefits are maximized.

Description

Technical Field

[0001] The present invention relates to the technical field of shearing equipment, and particularly relates to a metal shearing machine. Background Art

[0002] A metal shearing machine is a metal shearing and processing equipment. Its working principle is that under hydraulic drive, the metal is cut by the shearing head of the shearing machine. Under the action of a powerful shearing force, the metal is cut into sheared metal materials of a certain specification, and then through the treatment of downstream equipment, finished metal materials such as steel, aluminum or copper suitable for use can be obtained.

[0003] At present, due to the lack of a preset raw material compression and packing function in traditional simple gantry shearing equipment, on the one hand, the sheared metal raw materials are often loose and light-thrown, the bulk density of the processed raw materials is low, and the metal raw materials sheared in the same shearing stroke are greatly reduced, resulting in low metal raw material shearing efficiency of the metal cold shearing machine; on the other hand, due to the lack of a compression and packing mechanism, the scenarios during the use of the equipment are relatively single, and the functions of the equipment are not fully exerted. Also due to the above reasons, the simple gantry shearing equipment cannot fully exert all the production capacity of the equipment, resulting in waste of equipment production capacity and unnecessary consumption of energy. In this case, how to efficiently pre-compress and continuously feed the metal raw materials, so as to improve the production capacity of the metal shearing machine equipment, and change the function of the equipment from single shearing to both compression packing and shearing functions, making the machine multi-functional and achieving maximum benefits becomes crucial. Summary of the Invention

[0004] In order to overcome the above deficiencies, the purpose of the present invention is to provide a metal shearing machine, which can realize pre-compression and continuous feeding of raw materials, improve the production capacity of the metal shearing machine, and change the function of the equipment from single shearing to both compression packing and shearing functions, making the machine multi-functional and achieving maximum benefits.

[0005] Technical Solution: The present invention discloses a metal shearing machine, including:

[0006] A compression assembly for compressing raw materials;

[0007] A shearing device for cutting the raw materials compressed by the compression assembly;

[0008] A pusher assembly for pushing the raw materials compressed by the compression assembly, so as to push the raw materials into the shearing device for shearing;

[0009] The compression assembly includes a main machine box for carrying raw materials, a set of inner punch cylinders and a set of outer punch cylinders installed at the lower part of the main machine box, an inner punch plate and an outer punch plate respectively hinged to both sides of the main machine box. The inner punch cylinder and the outer punch plate are on the same side of the main machine box, and the outer punch cylinder and the inner punch plate are on the same side of the main machine box. The inner punch plate has a first connecting part, and the inner punch plate is rotationally connected to the inner punch cylinder through the first connecting part. The outer punch plate has a second connecting part, and the outer punch plate is rotationally connected to the outer punch cylinder through the second connecting part;

[0010] The metal shearing machine further includes a movable vehicle frame assembly. The compression assembly, the shearing device, and the material pushing assembly are installed on the movable vehicle frame assembly, and the shearing device is arranged at the tail position of the movable vehicle frame assembly.

[0011] Further, the compression assembly at least includes a deployed state and a compressed state. When the compression assembly is in the deployed state, the inner punch cylinder and the outer punch cylinder contract, and the inner punch plate and the outer punch plate expand towards both sides of the main machine box; when the compression assembly is in the compressed state, the inner punch cylinder and the outer punch cylinder extend, and the inner punch plate, the outer punch plate and the main machine box can be closed into a structure with a rectangular cross-section.

[0012] Further, the material pushing assembly is located at one end of the compression assembly away from the shearing device. The material pushing assembly includes a material pushing housing and a material pushing cylinder placed inside the material pushing housing, and the movable end of the material pushing cylinder can extend into the interior of the compression assembly.

[0013] Further, a wear-resistant lining plate is attached to the top surface of the main machine box.

[0014] Further, the shearing device includes a gantry and a hydraulic cutter head placed inside the gantry, and a material cutting chute is also provided on the side of the gantry facing away from the compression assembly.

[0015] Further, the shearing device includes a base, a movable tool holder, a first shearing mechanism, and a second shearing mechanism; the base has a first surface and a second surface disposed opposite to each other; a driving device and a hydraulic device are provided on the base; the movable tool holder has a first surface and a second surface disposed opposite to each other, the second surface of the movable tool holder is disposed in contact with the first surface of the base, the movable tool holder is connected to the output end of the driving device, and the driving device is used to drive the movable tool holder to reciprocate relative to the base; a cavity for placing metal raw materials is provided at the bottom of the movable tool holder; the first shearing mechanism includes a first pull rod, a first blade, and a first hydraulic nut, the first pull rod penetrates through the base in the direction from the first surface to the second surface of the base, one end of the first surface of the first pull rod is used to be connected to the first blade, one end of the second surface of the first pull rod is used to be connected to the first hydraulic nut, the first hydraulic nut is connected to the hydraulic device, and the hydraulic device is used to drive the first hydraulic nut to control the rotation of the first pull rod; the second shearing mechanism includes a second pull rod, a second blade, and a second hydraulic nut, the second pull rod penetrates through the movable tool holder in the direction from the first surface to the second surface of the movable tool holder, one end of the second surface of the second pull rod is used to be connected to the second blade, one end of the first surface of the second pull rod is used to be connected to the second hydraulic nut, the second hydraulic nut is connected to the hydraulic device, and the hydraulic device is used to drive the second hydraulic nut to control the rotation of the second pull rod; the second blade is tangent to the first blade; the first shearing mechanism further includes a locking pad, and the locking pad is disposed between the first hydraulic nut and the first surface of the base, and the locking pad is used to buffer the first hydraulic nut.

[0016] Further, the first blade has a first mounting hole, and one end of the first surface of the first pull rod is threadedly connected to the first mounting hole; the second blade has a second mounting hole, and one end of the second surface of the second pull rod is threadedly connected to the second mounting hole; the number of the first mounting holes on the first blade is multiple, and the combined number of the first pull rod and the first hydraulic nut is set to be multiple and match the number of the first mounting holes; the number of the second mounting holes on the second blade is multiple, and the combined number of the second pull rod and the second hydraulic nut is set to be multiple and match the number of the second mounting holes; the multiple first mounting holes are arranged at intervals along the extending direction of the cutting edge on the first blade; the multiple second mounting holes are arranged at intervals along the extending direction of the cutting edge on the second blade; the multiple first mounting holes cover the first blade along the extending direction of the cutting edge; the multiple second mounting holes cover the second blade along the extending direction of the cutting edge.

[0017] The beneficial effects of the present invention are as follows:

[0018] (1) The metal shearing machine with both shearing and packing functions described in the present invention can not only compress and pack raw materials, but also complete the shearing operation, meeting the processing requirements of various metal materials, and improving the applicability and production efficiency of the equipment;

[0019] (2) The compression component described in the present invention can effectively compress metal raw materials through the coordinated action of the inner pressing head plate and the outer pressing head plate to form a cube with a regular rectangular cross-section, which is convenient for subsequent processing;

[0020] (3) The pusher component described in the present invention has a simple design, and realizes the efficient transfer of raw materials from the compression area to the shearing area through the pusher oil cylinder, reducing manual intervention and improving work efficiency;

[0021] (4) The compression component described in the present invention has an unfolded state and a compressed state, which can be flexibly adjusted according to actual operations, facilitating the loading of raw materials and ensuring the tightness of the raw materials after compression;

[0022] (5) The shearing device described in the present invention adopts a gantry structure and a hydraulic tool head to ensure the stability and accuracy during the shearing process. In addition, the setting of the cutting chute can smoothly guide the sheared metal materials to be discharged, reducing the problem of jamming;

[0023] (6) The movable vehicle frame assembly described in the present invention can quickly assemble and move the compression component, the shearing device, and the pusher component above it, significantly improving the mobility of the entire equipment and enabling flexible use in various combinations. Description of the Drawings

[0024] The drawings described herein are for illustrative purposes only and are not intended to limit the scope of the disclosure of the present invention in any way. In addition, the shapes and proportional dimensions of the components in the drawings are only schematic and are used to assist in understanding the present invention, rather than specifically limiting the shapes and proportional dimensions of the components of the present invention. Those skilled in the art can, under the teaching of the present invention, select various possible shapes and proportional dimensions according to specific circumstances to implement the present invention. In the drawings:

[0025] Figure 1 is a schematic structural diagram of the metal shearing machine with both shearing and packing functions described in the present invention;

[0026] Figure 2 is a schematic structural diagram of the pusher component described in the present invention;

[0027] Figure 3 is a schematic structural diagram of the shearing device described in the present invention;

[0028] Figure 4 is a sectional view of the unfolded state of the compression component described in the present invention;

[0029] Figure 5 Cross-sectional view of the compression state of the compression component according to the present invention;

[0030] Figure 6 Schematic cross-sectional view of the shearing device according to the present invention;

[0031] Figure 7 Hydraulic logic schematic diagram of the shearing device according to the present invention;

[0032] Figure 8 Schematic perspective view of the shearing device according to the present invention;

[0033] Figure 9 Installation schematic diagram of the hydraulic device of the shearing device according to the present invention;

[0034] Figure 10 Schematic diagram of the movable vehicle frame assembly according to the present invention.

[0035] In the figure:

[0036] 1. Compression component; 11. Main machine box; 12. Inner punch cylinder; 13. Outer punch cylinder; 14. Inner punch plate; 141. First connection part; 15. Outer punch plate; 151. Second connection part;

[0037] 2. Shearing device; 21. Gantry; 22. Stock cutting chute; 23. Base; 231. Hydraulic device; 24. Movable tool holder; 25. First shearing mechanism; 251. First pull rod; 252. First blade; 253. First hydraulic nut; 254. Locking pad; 26. Second shearing mechanism; 261. Second pull rod; 262. Second blade; 263. Second hydraulic nut;

[0038] 3. Pushing component; 31. Pushing housing; 32. Pushing cylinder;

[0039] 4. Movable vehicle frame assembly. Detailed implementation manners

[0040] The present invention will be further illustrated below in conjunction with the accompanying drawings and specific embodiments.

[0041] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the present invention. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. The following describes the implementation manners according to the overall structure of the present invention.

[0042] As Figures 1 to 5 shown, the present invention discloses a metal shearing machine with both shearing and packing functions, which is used for packing and shearing raw materials, and includes:

[0043] A compression assembly 1, which is used for compressing raw materials;

[0044] A shearing device 2, which is used for cutting the raw materials compressed by the compression assembly 1;

[0045] A pusher assembly 3, which is used for pushing the raw materials compressed by the compression assembly 1, so as to push the raw materials into the shearing device 2 for shearing;

[0046] The compression assembly 1 realizes efficient compression of raw materials through the main machine box body 11, a group of inner punch cylinders 12, a group of outer punch cylinders 13, and the inner punch plates 14 and outer punch plates 15 hinged on both sides of the main machine box body 11. Specifically, the inner punch cylinder 12 and the outer punch plate 15 are located on the same side of the main machine box body 11, the outer punch cylinder 13 and the inner punch plate 14 are located on the same side of the main machine box body 11, both the inner punch cylinder 12 and the outer punch cylinder 13 are installed at the lower part of the main machine box body 11. At the same time, the inner punch plate 14 and the outer punch plate 15 are rotationally connected to their corresponding cylinders through the first connecting part 141 and the second connecting part 151, enhancing the flexibility and adjustability of the inner punch plate 14 and the outer punch plate 15, so as to meet the compression requirements of raw materials with different shapes and specifications. The connection between the punch plate and the cylinder uses a cross layout, effectively optimizing the force distribution and ensuring the stability and uniformity during the compression process. The compression assembly 1 applies pressure to the raw materials through the coordinated movement of the inner punch plate 14 and the outer punch plate 15, making the compression process more efficient and uniform, and avoiding the phenomenon of insufficient or uneven compression. The inner punch cylinder 12 and the outer punch cylinder 13 are arranged in a cross manner, with a reasonable distribution, further balancing the stress condition of the metal shearing machine during operation and improving the stability and durability of the overall equipment;

[0047] The metal shearing machine further includes a movable frame assembly 4, and the compression assembly 1, the shearing device 2, and the pusher assembly 3 are installed on the movable frame assembly 4. The shearing device 2 is arranged at the tail position of the movable frame assembly 4. As Figure 10 shown, through the multi-section assembly of the body of the movable frame assembly, the flexibility is improved. It can be adapted to the structures of the compression assembly 1, the shearing device 2, and the pusher assembly 3 with different sizes according to needs, and it is convenient to quickly transfer the entire equipment to different sites, which helps to improve the processing efficiency.

[0048] With the above structure, the metal shearing machine with both shearing and packing functions realizes the packing and shearing of metal raw materials through the coordinated action of three functional components: compression, pushing, and shearing. The metal raw materials are loaded into the compression assembly 1, and sufficient space is provided for the loading of the raw materials. The compression assembly 1 compresses the raw materials. After the compression is completed, the pusher assembly 3 starts to work, pushing the compressed metal raw materials towards the shearing device 2 and pushing them into the working area of the shearing device 2. The shearing device 2 cuts the metal raw materials pushed to the designated position. The present invention not only improves the operation efficiency but also reduces the links of raw material handling, and has a wide range of application prospects.

[0049] Further, the compression assembly 1 at least includes an expanded state and a compressed state and can switch between the above two states. In the expanded state, the inner ram cylinder 12 and the outer ram cylinder 13 are in a contracted state, respectively driving the inner ram plate 14 and the outer ram plate 15 to expand towards both sides of the main machine box 11, providing sufficient space for the loading of raw materials and facilitating the placement of large-volume raw materials; in the compressed state, the inner ram cylinder 12 and the outer ram cylinder 13 extend, pushing the inner ram plate 14 and the outer ram plate 15 to move inwards from the expanded state. Finally, the inner ram plate 14, the outer ram plate 15, and the main machine box 11 together form a structure with a closed rectangular cross-section, thereby firmly compressing the raw materials into the specified shape.

[0050] In this embodiment, the pusher assembly 3 is located at one end of the compression assembly 1 away from the shearing device 2, forming a module that can be connected to the compression assembly 1. The pusher assembly 3 is composed of a pusher housing 31 and a pusher cylinder 32 placed inside it. The movable end of the pusher cylinder 32 can directly extend into the interior of the compression assembly 1, stably pushing the compressed raw materials to the shearing device 2 and creating conditions for subsequent cutting processing. The pusher housing 31 can prevent metal debris from falling into the process range of the pusher cylinder 32, ensuring the safety and stability of the pusher cylinder 32 during operation, and at the same time improving the durability of the pusher assembly 3.

[0051] In this embodiment, a wear-resistant lining plate is additionally provided on the top surface of the main machine housing 11. As the surface of the main machine housing 11 that directly contacts the raw materials, the wear-resistant lining plate effectively protects the main machine housing 11 from the losses caused by high-intensity compression and raw material friction, and can extend the service life of the compression assembly 1 to a certain extent. The wear-resistant lining plate is made of materials with high hardness and strength, and resists the wear and impact on the surface of the main machine housing 11 by the metal raw materials during the compression and pushing processes with excellent wear-resistant performance, thereby maintaining the durability of the metal shearing machine.

[0052] In this embodiment, the shearing device 2 includes a gantry 21, a hydraulic cutter head, and a material cutting chute 22, which makes the shearing more efficient, accurate, and convenient. The gantry 21 provides a stable frame structure to ensure that the hydraulic cutter head has good support and positioning capabilities during operation, avoiding cutting errors caused by vibration. The hydraulic cutter head is arranged inside the gantry 21 and uses hydraulic drive to achieve efficient cutting, which can meet the shearing requirements for high-strength metal raw materials. In addition, a material cutting chute 22 is arranged on the side of the gantry 21 facing away from the compression assembly 1, which can export the sheared metal raw materials to achieve automatic material discharge and avoid material accumulation from affecting subsequent work.

[0053] In another embodiment, the shearing device includes a base 23, a movable tool holder 24, a first shearing mechanism 25, and a second shearing mechanism 26. The base 23 has a first surface and a second surface disposed opposite to each other; a driving device and a hydraulic device 231 are provided on the base 23; the movable tool holder 24 has a first surface and a second surface disposed opposite to each other, and the second surface of the movable tool holder 24 is disposed in contact with the first surface of the base 23. The movable tool holder 24 is connected to the output end of the driving device, and the driving device is used to drive the movable tool holder 24 to reciprocate relative to the base 23; the bottom of the movable tool holder 24 has a cavity for placing metal raw materials; the first shearing mechanism 25 includes a first pull rod 251, a first blade 252, and a first hydraulic nut 253. The first pull rod is disposed through the base 23 in the direction from the first surface to the second surface of the base 23. One end of the first surface of the first pull rod 251 is used to connect to the first blade 252, and one end of the second surface of the first pull rod 251 is used to connect to the first hydraulic nut 253. The first hydraulic nut 253 is connected to the hydraulic device 231, and the hydraulic device 231 is used to drive the first hydraulic nut 253 to control the rotation of the first pull rod 251, so that the first pull rod 251 is connected to or separated from the first blade 252; the second shearing mechanism includes a second pull rod 261, a second blade 262, and a second hydraulic nut 263. The second pull rod 261 is disposed through the movable tool holder 24 in the direction from the first surface to the second surface of the movable tool holder 24. One end of the second surface of the second pull rod 261 is used to connect to the second blade 262, and one end of the first surface of the second pull rod 261 is used to connect to the second hydraulic nut 263. The second hydraulic nut 263 is connected to the hydraulic device 231, and the hydraulic device 231 is used to drive the second hydraulic nut 263 to control the rotation of the second pull rod 261, so that the second pull rod 261 is connected to or separated from the second blade 262; the second blade 262 is tangent to the first blade 252. The first shearing mechanism 25 further includes a locking pad 254, and the locking pad 254 is disposed between the first hydraulic nut 253 and the first surface of the base 23, and the locking pad 254 is used to buffer the first hydraulic nut 253.

[0054] Based on the above structure, during the use process, the operator only needs to place the metal raw materials in the cavity at the bottom of the movable tool holder 24, and then start the driving device to operate so that the movable tool holder 24 drives the second blade 262 to regularly move out of position relative to the first blade 252, and the first blade 252 and the second blade 262 cooperate to cut off the metal raw materials between the two.

[0055] In the shearing device of the above embodiment, the first blade 252 and the second blade 262 are worn due to the pressure of the metal raw material. When it is necessary to replace the severely worn first blade 252 and second blade 262, taking the first shearing mechanism 25 as an example, the operator only needs to control the hydraulic device 231 so that the first hydraulic nut 253 drives the first pull rod 251 to rotate counterclockwise. At this time, the first pull rod 251 disengages from the first blade 252, and the operator can further remove the first blade 252. When replacing the new blade, the operator pre-places the first blade 252 to be replaced at the position of one end of the first pull rod 251 facing the first surface. At this time, preliminary fixation can be achieved through mechanisms such as the frame. Then, operate the hydraulic device 231 so that the first hydraulic nut 253 drives the first pull rod 251 to rotate clockwise. At this time, the first pull rod 251 penetrates and fixes the first blade 252. The usage method in the second shearing mechanism 26 is the same.

[0056] Based on the above embodiment, the first blade 252 has a first mounting hole, and one end of the first surface of the first pull rod 251 is threadedly connected to the first mounting hole; at the same time, multiple first mounting holes are provided on the first blade 252, and the combined number of the first pull rod 251 and the first hydraulic nut 253 is set to be multiple and matching the number of the first mounting holes. Specifically, the multiple first mounting holes are arranged at intervals along the direction of the blade edge on the first blade 252, and the multiple first mounting holes cover the first blade 252 along the direction of the blade edge. Through the above structure, the first blade 252 is uniformly supported by multiple first pull rods 251 along the blade edge direction, making the fixation of the first blade 252 more stable and not easily falling off. Of course, different strengths of fixation can be set according to the needs of cutting, which can reduce the time for replacing the first blade 252. This embodiment is a solution with relatively high requirements for fixation. The usage method in the second blade 262 is the same.

[0057] So far, the technical solution of the present invention has been described in combination with the preferred embodiments shown in the drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the present invention.

Claims

1. A metal shearing machine, characterized in that: include: A compression component, wherein the compression component is used to compress the raw material; A shearing device, the shearing device is used to cut the raw material compressed by the compression assembly; A pusher assembly, the pusher assembly is used to push the raw material compressed by the compression assembly, thereby pushing the raw material into the shearing device for shearing; The compression assembly includes a main housing for carrying raw materials, a group of inner pressure head cylinders and a group of outer pressure head cylinders installed at the lower part of the main housing, and an inner pressure head plate and an outer pressure head plate respectively hinged on both sides of the main housing, the inner pressure head cylinder and the outer pressure head plate are located on the same side of the main housing, the outer pressure head cylinder and the inner pressure head plate are located on the same side of the main housing, the inner pressure head plate has a first connection portion, the inner pressure head plate is rotatably connected to the inner pressure head cylinder through the first connection portion, and the outer pressure head plate has a second connection portion, the outer pressure head plate is rotatably connected to the outer pressure head cylinder through the second connection portion; The metal shearing machine also includes a movable frame assembly, the compression component, the shearing device, and the pushing component are installed on the movable frame assembly, and the shearing device is arranged at the rear position of the movable frame assembly.

2. The metal shearing machine according to claim 1, characterized in that: The compression assembly at least includes an expanded state and a compressed state. When the compression assembly is in the expanded state, the inner pressure head cylinder and the outer pressure head cylinder are contracted, and the inner pressure head plate and the outer pressure head plate are expanded toward both sides of the main housing; when the compression assembly is in the compressed state, the inner pressure head cylinder and the outer pressure head cylinder are extended, and the inner pressure head plate, the outer pressure head plate and the main housing can be closed into a structure with a rectangular cross-section.

3. The metal shearing machine according to claim 1, characterized in that: The pushing assembly is located at one end of the compression assembly away from the shearing device. The pushing assembly includes a pushing shell and a pushing cylinder disposed inside the pushing shell. The movable end of the pushing cylinder can extend into the interior of the compression assembly.

4. The metal shearing machine according to claim 1, characterized in that: A wear-resistant lining is attached to the top surface of the main engine box.

5. The metal shearing machine according to claim 1, characterized in that: The shearing device comprises a gantry and a hydraulic cutter head arranged inside the gantry, and a cutting chute is also arranged on a side of the gantry away from the compression assembly.

6. The metal shearing machine according to claim 1, characterized in that: The shearing device includes a base, a movable knife seat, a first shearing mechanism, and a second shearing mechanism; the base has a first surface and a second surface arranged opposite to each other; a driving device and a hydraulic device are arranged on the base, the movable knife seat has a first surface and a second surface arranged opposite to each other, the second surface of the movable knife seat is arranged in contact with the first surface of the base, the movable knife seat is connected to the output end of the driving device, and the driving device is used to drive the movable knife seat to reciprocate relative to the base; the bottom of the movable knife seat has a cavity for placing metal raw materials; the first shearing mechanism includes a first pull rod, a first blade and a first hydraulic nut, the first pull rod is arranged to penetrate the base along the direction from the first surface to the second surface of the base, one end of the first surface of the first pull rod is used to be connected to the first blade, and one end of the second surface of the first pull rod is used to be connected to the first hydraulic nut The first hydraulic nut is connected to the hydraulic device, and the hydraulic device is used to drive the first hydraulic nut to control the rotation of the first pull rod; the second shearing mechanism includes a second pull rod, a second blade and a second hydraulic nut, the second pull rod is arranged along the first surface to the second surface of the movable knife seat, one end of the second surface of the second pull rod is used to be connected to the second blade, one end of the first surface of the second pull rod is used to be connected to the second hydraulic nut, the second hydraulic nut is connected to the hydraulic device, and the hydraulic device is used to drive the second hydraulic nut to control the rotation of the second pull rod; the second blade is arranged tangentially to the first blade; the first shearing mechanism also includes a locking washer, the locking washer is arranged between the first hydraulic nut and the first surface of the base, and the locking washer is used to buffer the first hydraulic nut.

7. The metal shearing machine according to claim 1, characterized in that: The first blade has a first mounting hole, and one end of the first surface of the first tie rod is threadedly connected to the first mounting hole; the second blade has a second mounting hole, and one end of the second surface of the second tie rod is threadedly connected to the second mounting hole; the first mounting holes on the first blade are arranged in plurality, and the combined number of the first tie rod and the first hydraulic nut is arranged to a plurality matching the number of the first mounting holes; the second mounting holes on the second blade are arranged in plurality, and the combined number of the second tie rod and the second hydraulic nut is arranged to a plurality matching the number of the second mounting holes; the plurality of first mounting holes are arranged at intervals on the first blade along the direction in which the blade extends; the plurality of second mounting holes are arranged at intervals on the second blade along the direction in which the blade extends; the plurality of first mounting holes cover the first blade along the direction in which the blade extends; the plurality of second mounting holes cover the second blade along the direction in which the blade extends.

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