Cutting device suitable for metal sheets

Abstract

The invention discloses a cut-off device suitable for metal sheets, and belongs to the technical field of metal material machining equipment.The cut-off device comprises a rack, a cutter assembly and a driving assembly, and the rack is provided with a feeding plate used for conveying the metal sheets; the cutter assembly comprises a moving base arranged on the rack in a sliding mode, a first driving mechanism fixedly arranged on the moving base, a first cutter connected with the output end of the first driving mechanism and a second cutter rotationally arranged on the moving base. The lower end of the first cutter is attached to the upper end of the second cutter in the first direction, so that the first cutter can drive the second cutter to synchronously rotate and shear a metal sheet through the friction effect when the first cutter is driven by the first driving mechanism to rotate; the cutter assembly can be driven by the driving assembly to move and cut off the metal sheets. By means of the metal sheet cutting device, the metal sheet can be cut off through the shearing effect to ensure that notches are flush, and meanwhile the cutting efficiency can be improved.

Description

Technical Field

[0001] The present application relates to the technical field of metal material processing equipment, and in particular to a cutting device suitable for metal sheets. Background Art

[0002] Metal sheets refer to thin sheets made of metal materials, and their thickness standards vary slightly depending on the material and purpose. For example, the thickness of steel sheets (thin steel plates) is generally between 0.2mm and 4mm, and the thickness of aluminum sheets (thin aluminum plates) is generally between 0.2mm and 500mm. After manufacturing, metal sheets generally need to be cut according to their intended use. In related technologies, metal sheets are generally cut manually using a cutting machine. In actual processing operations, problems such as uneven cuts (burrs) and tangent offsets are prone to occur, and the processing efficiency is low. Summary of the invention

[0003] The present application aims to solve one of the technical problems in the related art to a certain extent. To this end, the present application provides a cutting device suitable for metal sheets.

[0004] In order to achieve the above-mentioned purpose, the present application adopts the following technical scheme: a cutting device suitable for metal sheets, the cutting device comprises a frame and a power unit arranged on the frame, the power unit comprises a cutter assembly and a driving assembly, the frame is provided with a feed plate for transmitting metal sheets, the cutter assembly is located in front of the feed plate along a first direction, and the first direction is the travel direction of the metal sheets; the cutter assembly comprises a moving seat slidably arranged on the frame, a first driving mechanism fixedly arranged on the moving seat, a first cutter connected to the output end of the first driving mechanism, and a second cutter rotatably arranged on the moving seat, the first cutter and the second cutter are both flat-edged circular blades; the lower end of the first cutter is in contact with the upper end of the second cutter along the first direction, so that when the first cutter rotates under the drive of the first driving mechanism, the second cutter can be driven to rotate synchronously and shear the metal sheet through friction; the driving assembly is arranged on the frame and connected to the moving seat, and the cutter assembly can reciprocate along the second direction under the drive of the driving assembly and cut the metal sheet during the moving stroke along the second direction, and the second direction intersects with the first direction

[0005] The application of this application has the following beneficial effects: The inventor has found through analysis that the prior art uses serrated cutters to perform sliding cutting or rotational cutting on metal sheets, which easily leads to the problem of uneven cuts. In this application, a first cutter and a second cutter are provided, and the lower end of the first cutter fits with the upper end of the second cutter along a first direction. The first cutter is driven to rotate by a first driving mechanism, and the first cutter drives the second cutter to rotate synchronously through friction. The first cutter and the second cutter cooperate to shear the metal sheet during the synchronous rotation process. Since the first cutter and the second cutter are both flat-edged circular blades and the metal sheet is cut by shearing, it can ensure that the cut is flush. At the same time, the cutting efficiency can be improved by driving the cutter assembly to move to achieve cutting instead of manual operation through a driving assembly.

[0006] Optionally, the cutting device further comprises a guide rail extending along the second direction and a slider slidably arranged on the guide rail, wherein the guide rail is fixedly mounted on the frame, and the slider is fixedly connected to the movable seat. The sliding direction of the movable seat can be limited by arranging the guide rail and the slider, thereby improving the sliding stability of the movable seat and preventing the cutter assembly from deviating during the cutting process of the metal sheet.

[0007] Optionally, the driving assembly includes a driving motor fixedly mounted on the moving seat, a gear fixedly mounted on the output end of the driving motor, and a rack meshing with the gear, wherein the rack is fixedly mounted on the frame and extends along the second direction. Through the cooperation of the gear and the rack, the driving motor can drive the gear and itself to move along the rack during operation, and can also drive the moving seat to move through the driving motor. Since the driving motor and the moving seat move synchronously, there is no need to set a longer transmission mechanism between the driving motor and the moving seat along the second direction, which can reduce the overall design size of the cutting device.

[0008] Optionally, the power unit further includes a clamping assembly, the clamping assembly includes a second driving mechanism disposed on the frame and a pressing plate driven by the second driving mechanism to move up and down, the pressing plate being used to clamp and fix the metal sheet on the feeding plate. By providing the clamping assembly, the metal sheet can be clamped and fixed from one side of the cutter assembly, thereby reducing the movement (movement in the height direction) and swing (movement in the second direction) of the metal sheet caused by the impact of the cutter assembly during the cutting process, and reducing the probability of problems such as uneven incisions and tangent line deviation.

[0009] Optionally, the movable seat includes a seat body and a mounting frame arranged on the seat body, the first driving mechanism is arranged on the seat body, the first cutter and the second cutter are both rotatably arranged on the mounting frame, and the first cutter is located in front of the second cutter along the first direction; the bottom end of the seat body is higher than the upper surface of the feed plate and there is a spacing between the two that can avoid the metal sheet; the part of the mounting frame located in the first direction behind the first cutter is not higher than the upper surface of the feed plate, the part of the mounting frame located in the first direction in front of the second cutter is formed with a guide arc surface, and the guide arc surface is located in the rear of the first cutter and the second cutter along the second direction; along the second direction, the spacing between the guide arc surface and the upper surface of the feed plate in the height direction is uniformly reduced. By designing the structure of the movable seat and its position relative to the upper surface of the feed plate, it is possible to avoid interference between the movable seat and the metal sheet during the process of the cutter assembly cutting the metal sheet.

[0010] Optionally, the mounting frame includes a first mounting plate, an extension plate, and a second mounting plate fixed in sequence, the first mounting plate is fixed to the base body, the first driving mechanism has a rotating output end extending from the first mounting plate, the first cutter is fixed to the rotating output end, and the second cutter is rotatably arranged on the second mounting plate.

[0011] Optionally, the cutting device further includes a support assembly, the support assembly is not higher than the upper surface of the feed plate, the support assembly includes a first connecting member, an extension rod and a support member connected in sequence, the first connecting member is fixed to a portion of the mounting frame located behind the first cutter along the first direction; the support member is located in front of the first cutter along the first direction, the support member is located in front of the first cutter and the second cutter along the second direction, and the upper end of the support member is in the same plane as the upper surface of the feed plate. The support assembly can be provided to cooperate with the clamping assembly to further maintain the stability of the metal sheet during the cutting process, further reduce the movement (movement in the height direction) of the metal sheet caused by the impact of the cutter assembly during the cutting process, and reduce the probability of problems such as uneven incisions and tangent line deviation.

[0012] Optionally, the support member is a first circular shaft rotatably arranged on the extension rod, the rotation axis of the first circular shaft is in the same direction as the first direction, and the first circular shaft is used for rolling contact with the metal sheet. Designing the support member as an axle structure can reduce the friction between the support member and the metal sheet.

[0013] Optionally, the cutting device further comprises a pressing assembly, which comprises: a connecting frame fixedly disposed on the movable seat; a connecting plate rotatably disposed on the connecting frame; a second circular shaft rotatably disposed on the connecting plate; and an elastic member disposed between the connecting frame and the connecting plate and exerting pressure on the connecting plate so that the connecting plate has a tendency to swing downward; wherein the pressing assembly is located in front of the first cutter along the first direction, and the second circular shaft is located directly above the first circular shaft. The second circular shaft in the pressing assembly cooperates with the first circular shaft to clamp the metal sheet, further reducing the movement (movement in the height direction) of the metal sheet caused by the impact of the cutter assembly during the cutting process.

[0014] Optionally, the cutting device further includes a control unit and a detection unit for detecting the travel information of the metal sheet, the control unit is electrically connected to the detection unit and the power unit, the control unit obtains the travel information of the metal sheet through the detection unit and controls the power unit to work according to the travel information of the metal sheet. By setting the control unit and the detection unit, the required length of the metal sheet can be pre-set as needed, and then the control unit controls the cutting device to automatically work and complete the cutting of the metal sheet.

[0015] These features and advantages of the present application will be disclosed in detail in the following specific embodiments and drawings. The best embodiments or means of the present application will be described in detail in conjunction with the drawings, but they are not intended to limit the technical solutions of the present application. In addition, there are multiple features, elements, and components that appear in each of the following texts and drawings, and different symbols or numbers are marked for convenience, but they all represent components with the same or similar structures or functions. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present application is further described below in conjunction with the accompanying drawings:

[0017] Figure 1 A schematic structural diagram of a cutting device suitable for metal sheets provided in Example 1 of the present application;

[0018] Figure 2 It is a structural schematic diagram of the cutting device from another perspective;

[0019] Figure 3 The exploded view of the cutter assembly;

[0020] Figure 4 It is a schematic diagram of the structure of the mounting frame in the mobile seat;

[0021] Figure 5 It is a front view of the cutting device;

[0022] Figure 6 is a side view of the cutting device;

[0023] Figure 7 It is a schematic diagram of a metal sheet being partially cut off;

[0024] Figure 8 This is a schematic diagram of the structure of the cutting device provided in Example 2.

[0025] Among them, 1, frame; 10, feed plate; 11, feed roller; 12, guide rail; 13, slider; 2, cutter assembly; 20, moving seat; 200, seat body; 2000, connecting seat; 2001, bottom shell; 201, mounting frame; 2010, guide arc surface; 2011, first mounting plate; 2012, second mounting plate; 2013, extension plate; 21, first driving mechanism; 210, first motor; 211, active helical gear; 212, transmission helical gear Wheel; 213, drive shaft; 22, first cutter; 23, second cutter; 3, drive assembly; 30, drive motor; 31, gear; 32, rack; 33, drag chain cable; 4, clamping assembly; 40, second drive mechanism; 41, pressure plate; 5, support assembly; 50, first connecting member; 51, extension rod; 52, first circular shaft; 6, pressing assembly; 60, connecting frame; 61, connecting plate; 62, second circular shaft; 63, elastic member; 7, metal sheet. DETAILED DESCRIPTION

[0026] The embodiments of the present application are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements with the same or similar functions. The embodiments based on the embodiments are intended to be used to explain the present application and cannot be understood as limiting the present application.

[0027] References to "one embodiment" or "an example" or "an example" in this specification mean that a particular feature, structure, or characteristic described in conjunction with the embodiment itself may be included in at least one embodiment disclosed in the present application. The appearance of the phrase "in one embodiment" in various places in the specification does not necessarily refer to the same embodiment.

[0028] Embodiment 1: This embodiment provides a cutting device suitable for a metal sheet 7, such as Figure 1 and Figure 2As shown in the figure, the cutting device includes a frame 1 and a power unit arranged on the frame 1, the power unit includes a cutter assembly 2 and a drive assembly 3, the frame 1 is provided with a feed plate 10 for transmitting the metal sheet 7, the cutter assembly 2 is located in front of the feed plate 10 along a first direction S, and the first direction S is the travel direction of the metal sheet 7. The cutter assembly 2 includes a moving seat 20, a first drive mechanism 21, a first cutter 22 and a second cutter 23. Among them, the moving seat 20 is slidably arranged on the frame 1, the first drive mechanism 21 is fixedly arranged on the moving seat 20, the first cutter 22 is connected to the output end of the first drive mechanism 21, and the second cutter 23 is rotatably arranged on the moving seat 20. The first cutter 22 and the second cutter 23 are both flat-edged circular blades, that is, the first cutter 22 and the second cutter 23 are both disc-shaped and are sharpened on the outer edge along their circumferential direction.

[0029] In this embodiment, the lower end of the first cutter 22 and the upper end of the second cutter 23 are fitted along the first direction S, so that when the first cutter 22 rotates driven by the first driving mechanism 21, it can drive the second cutter 23 to rotate synchronously and shear the metal sheet 7 through friction. Specifically, the lower end of the first cutter 22 and the upper end of the second cutter 23 are fitted with a certain pre-tightening force. The first driving mechanism 21 can drive the first cutter 22 to rotate during operation. The first cutter 22 drives the second cutter 23 to rotate through friction. The first cutter 22 and the second cutter 23 can shear the metal sheet 7 in contact with them during the synchronous rotation process. The driving component 3 is arranged on the frame 1 and is connected to the movable seat 20. The cutter component 2 can reciprocate along the second direction P under the drive of the driving component 3 and cut the metal sheet 7 during the moving stroke along the second direction P. The second direction P intersects with the first direction S. Specifically in this embodiment, the second direction P is perpendicular to the first direction S. As Figure 2 As shown in the figure, in this embodiment, a thin steel plate is taken as an example of the metal sheet 7, and the length direction of the metal sheet 7 is the same as its moving direction. Therefore, the first direction S in this embodiment is also the length direction of the metal sheet 7, and the second direction P is the width direction of the metal sheet 7.

[0030] After analysis, the inventor found that in the prior art, a serrated cutter is used to slide cut or rotate cut the metal sheet 7, which easily leads to the problem of uneven cuts. In the present application, a first cutter 22 and a second cutter 23 are provided, and the lower end of the first cutter 22 is fitted with the upper end of the second cutter 23 along the first direction S. The first cutter 22 is driven to rotate by the first driving mechanism 21, and the first cutter 22 drives the second cutter 23 to rotate synchronously through friction. The first cutter 22 and the second cutter 23 cooperate to shear the metal sheet 7 during the synchronous rotation. Since the first cutter 22 and the second cutter 23 are both flat-edged circular blades and the metal sheet 7 is cut by shearing, it can ensure that the cut is flush. At the same time, the cutting efficiency can be improved by driving the cutter assembly 2 to move to achieve cutting instead of manual operation through the driving assembly 3.

[0031] It is easy to understand that the cutter assembly 2 can cut the metal sheet 7 when moving along the second direction P, and the cutter assembly 2 can return to its original position when moving in the opposite direction of the second direction P.

[0032] It should be noted that the cutting device provided in this embodiment may also include a feeding assembly, which is used to transfer the metal sheet 7 to be cut along the first direction S to the feeding plate 10 and further transfer it forward along the first direction S through the feeding plate 10. Of course, an additional feeding device having the function of transferring the metal sheet 7 may be provided, and the feeding device may be used in conjunction with the cutting device provided in this embodiment. Figure 1 As shown in FIG. 1 , a feeding roller 11 may be provided on one side of the feeding plate 10 . The feeding roller 11 is rotatably provided on the frame 1 . The feeding roller 11 may transmit the metal sheet 7 by friction.

[0033] The cutting device provided in this embodiment further includes a guide rail 12 extending along the second direction P and a slider 13 slidably disposed on the guide rail 12. The guide rail 12 is fixedly mounted on the frame 1, and the slider 13 is fixedly connected to the movable seat 20. The guide rail 12 and the slider 13 can limit the sliding direction of the movable seat 20, improve the sliding stability of the movable seat 20, and prevent the cutter assembly 2 from deviating during the cutting process of the metal sheet 7.

[0034] Further, the driving assembly 3 in this embodiment includes a driving motor 30, a gear 31, and a rack 32 meshing with the gear 31. Among them, the driving motor 30 is fixedly mounted on the moving seat 20, the gear 31 is fixedly arranged at the output end of the driving motor 30, and the rack 32 is fixedly arranged on the frame 1 and extends along the second direction P. Through the cooperation of the gear 31 and the rack 32, the driving motor 30 can drive the gear 31 and itself to move along the rack 32 when working, and at the same time, the moving seat 20 can be driven to move by the driving motor 30. Since the driving motor 30 and the moving seat 20 move synchronously, there is no need to set a longer transmission mechanism between the driving motor 30 and the moving seat 20 along the second direction P, which can reduce the overall design size of the cutting device. In addition, the meshing transmission of the gear 31 and the rack 32 has the advantages of high transmission accuracy and stable transmission, so that the moving distance of the cutter assembly 2 can be accurately controlled, while reducing the vibration effect on the driving motor 30 and the moving seat 20. The cooperation with the aforementioned guide rail 12 and slide block 13 structure can make the cutter assembly 2 slide more smoothly along the second direction.

[0035] Since the driving motor 30 moves synchronously with the moving base 20 , in this embodiment, a drag chain cable 33 is also provided for the driving motor 30 . The drag chain cable 33 can move with the driving motor 30 without being easily worn, thereby extending the service life of the driving component 3 .

[0036] like Figure 1 As shown in , the power unit in this embodiment also includes a clamping assembly 4, which includes a second driving mechanism 40 arranged on the frame 1 and a pressing plate 41 driven by the second driving mechanism 40 and capable of moving up and down, and the pressing plate 41 is used to clamp and fix the metal sheet 7 on the feeding plate 10. By setting the clamping assembly 4, the metal sheet 7 can be clamped and fixed from one side of the cutter assembly 2, reducing the movement (movement in the height direction) and swing (movement in the second direction P) of the metal sheet 7 caused by the impact of the cutter assembly 2 during the cutting process, and reducing the probability of problems such as uneven incisions and tangent offset. Specifically in this embodiment, the second driving mechanism 40 is a gas pressure rod, and the pressing plate 41 is fixedly installed at the output end of the gas pressure rod. In other optional embodiments, the second driving mechanism 40 can also be other linear drives, such as electric push rods.

[0037] Combination Figure 3As shown in , the movable seat 20 in this embodiment includes a seat body 200 and a mounting frame 201 arranged on the seat body 200. The first driving mechanism 21 is arranged on the seat body 200. Specifically, the seat includes a connecting seat 2000 and a bottom shell 2001 arranged at the bottom of the connecting seat 2000. The first driving mechanism 21 in this embodiment includes a first motor 210, a driving bevel gear 211, a transmission bevel gear 212 and a driving shaft 213. The first motor 210 is fixedly arranged on the connecting seat 2000, and the output end of the first motor 210 extends into the bottom shell 2001. The driving bevel gear 211 and the transmission bevel gear 212 are meshed and transmitted and are both arranged in the bottom shell 2001. The driving bevel gear 211 is fixedly sleeved outside the output end of the first motor 210, and the transmission bevel gear 212 is fixedly sleeved outside the driving shaft 213. When the first motor 210 is working, it can drive the driving bevel gear 211 to rotate and drive the driving shaft 213 to rotate through the transmission bevel gear 212. The end of the driving shaft 213 forms a rotating output end, and the first cutter 22 is fixedly connected to the rotating output end to rotate under the drive of the driving shaft 213 .

[0038] In this embodiment, the first cutter 22 and the second cutter 23 are both rotatably mounted on the mounting frame 201. Figure 5 As shown in the figure, the mounting frame 201 includes a first mounting plate 2011, an extension plate 2013 and a second mounting plate 2012 which are fixed in sequence, the first mounting plate 2011 is fixed to the base body 200, the aforementioned rotating output end extends from the first mounting plate 2011 to the bottom shell 2001, the first cutter 22 is fixed to the rotating output end, and the second cutter 23 is rotatably set on the second mounting plate 2012.

[0039] Combination Figure 2 and Figure 4 As shown in the figure, the first cutter 22 in this embodiment is located in front of the second cutter 23 along the first direction S. The bottom end of the seat 200 is higher than the upper surface of the feed plate 10 and there is a gap between the two that can avoid the metal sheet 7. The portion of the mounting frame 201 located in the first direction S behind the first cutter 22 is not higher than the upper surface of the feed plate 10, and the portion of the mounting frame 201 located in front of the second cutter 23 along the first direction S is formed with a guide arc surface 2010, and the guide arc surface 2010 is located in the rear of the first cutter 22 and the second cutter 23 along the second direction P. Combined with Figure 6 As shown in , along the second direction P, the distance between the guide arc surface 2010 and the upper surface of the feed plate 10 along the height direction is uniformly reduced. By designing the structure of the movable seat 20 and its position relative to the upper surface of the feed plate 10, it is possible to avoid interference between the movable seat 20 and the metal sheet 7 during the process of the cutter assembly 2 cutting the metal sheet 7.

[0040] The cutting device provided in this embodiment also includes a control unit (not shown in the figure) and a detection unit (not shown in the figure) for detecting the moving stroke information of the metal sheet 7. The control unit is electrically connected to the power unit and the detection unit, and the control unit obtains the moving stroke information of the metal sheet 7 through the detection unit and controls the power unit to work according to the moving stroke information of the metal sheet 7. By setting the control unit and the detection unit, the required length of the metal sheet 7 can be pre-set as needed, and then the control unit controls the cutting device to automatically work to complete the cutting of the metal sheet 7. Therefore, the cutting device can be used to cut the metal sheet 7 at any length according to the use needs, so as to obtain the metal sheet 7 of the required length. It is easy to understand that the detection unit is used to detect the moving distance of the target object, and a commonly used distance conversion measurement sensor such as a photoelectric sensor and a displacement sensor can be used, which will not be repeated here.

[0041] Embodiment 2: This embodiment also provides a cutting device, combined with Figure 8 As shown, the difference between this embodiment and the above embodiment is that the cutting device provided in this embodiment further includes a supporting assembly 5. The inventors have found through experimental research that during the cutting process of the metal sheet 7, Figure 7 As shown in the figure, the cut part of the metal sheet 7 will droop downward, and thus, the cut part of the metal sheet 7 will generate a downward drag force on the uncut part. When the width dimension of the metal sheet 7 to be cut is larger and the thickness dimension is thinner, the uncut part of the metal sheet 7 is more likely to be dragged by the cut part of the metal sheet 7 and torn, thereby causing the problem of tangent deviation. In addition, for the metal sheet 7 with a smaller thickness dimension, it is easier to deform, and it is also easier to move in the height direction during the cutting process, which may also cause the problem of uneven cuts.

[0042] The support assembly 5 in this embodiment includes a first connecting member 50, an extension rod 51 and a support member connected in sequence. It is easy to understand that the support assembly 5 is not higher than the upper surface of the feed plate 10, so that the support assembly 5 will not interfere with the metal sheet 7 sliding over the feed plate 10. The first connecting member 50 is fixed to the portion of the mounting frame 201 located behind the first cutter 22 along the first direction S, so that the first connecting member 50 will not interfere with the cut metal sheet 7 during the cutting process. The upper end of the support member is in the same plane as the upper surface of the feed plate 10, so that the support member can contact the lower surface of the metal sheet 7 to form a supporting effect on the metal sheet 7. It is easy to understand that the extension rod 51 is arranged between the connecting member and the support member, so the extension rod 51 must have a part located in front of the first cutter 22 along the first direction S, so the extension rod 51 can be designed so that the height of its top end is lower than the top end of the support member. In this way, the extension rod 51 will not interfere with the cut metal sheet 7 during the cutting process.

[0043] At the same time, the support member in this embodiment is located in front of the first cutter 22 along the first direction S, and the support member is located in front of the first cutter 22 and the second cutter 23 along the second direction P. Through the above arrangement, the support member and the aforementioned clamping assembly 4 can be located on both sides of the first cutter 22 and the second cutter 23 respectively. In this way, when the cutter assembly 2 shears and cuts the metal sheet 7, the support member is located in front of the first cutter 22 and the second cutter 23 (along the second direction P), and the metal sheet 7 to be sheared by the first cutter 22 and the second cutter 23 is supported by the support member, so that the aforementioned problem of cut deviation of the metal sheet 7 to be cut can be avoided. At the same time, the support assembly 5 can be arranged to cooperate with the clamping assembly 4 to further maintain the stability of the metal sheet 7 during the cutting process, further reduce the movement (movement in the height direction) of the metal sheet 7 caused by the impact of the cutter assembly 2 during the cutting process, and reduce the probability of problems such as uneven cuts and tangent line deviation.

[0044] Furthermore, the support member in this embodiment is a first circular shaft 52 rotatably disposed on the extension rod 51, the rotation axis of the first circular shaft 52 is in the same direction as the first direction S, and the first circular shaft 52 is used for rolling contact with the metal sheet 7. Designing the support member as a shaft structure can reduce the friction between the support member and the metal sheet 7.

[0045] Furthermore, the cutting device in this embodiment further includes a pressing assembly 6, which includes a connecting frame 60, a connecting plate 61, a second circular shaft 62 and an elastic member 63. The connecting frame 60 is fixedly arranged on the movable seat 20, the connecting plate 61 is rotatably arranged on the connecting frame 60, the second circular shaft 62 is rotatably arranged on the connecting plate 61, and the elastic member 63 is arranged between the connecting frame 60 and the connecting plate 61 and applies pressure on the connecting plate 61 so that the connecting plate 61 has a tendency to swing downward. In addition, the pressing assembly 6 is located in front of the first cutter 22 along the first direction S, and the second circular shaft 62 is located directly above the first circular shaft 52.

[0046] Through the above structural design, the second circular shaft 62 maintains a downward force under the pressure of the elastic member 63 on the connecting rod. When the metal sheet 7 is not cut, the second circular shaft 62 will abut against the first circular shaft 52 under the action of the elastic member 63. When the metal sheet 7 is cut, the side of the metal sheet 7 contacts the first circular shaft 52 and the second circular shaft 62, which will cause the metal sheet 7 to squeeze between the first circular shaft 52 and the second circular shaft 62 (overcoming the elastic force of the elastic member 63 so that the second circular shaft 62 and the connecting plate 61 are slightly swung up). The first circular shaft 52 cooperates with the second circular shaft 62 in the pressing assembly 6 to clamp the metal sheet 7, further reducing the movement (movement in the height direction) of the metal sheet 7 caused by the impact of the cutter assembly 2 during the cutting process. At the same time, due to the provision of the above elastic member 63, the pressing assembly 6 can adaptively adapt to metal sheets 7 of different thicknesses. The elastic member 63 in this embodiment is a torsion spring. In an optional implementation manner, elasticity, metal spring sheets, etc. can also be used as the elastic member 63.

[0047] The above are only specific embodiments of the present application, but the protection scope of the present application is not limited thereto. Those skilled in the art should understand that the present application includes but is not limited to the contents described in the drawings and the above specific embodiments. Any modification that does not deviate from the functional and structural principles of the present application will be included in the scope of the claims.

Claims

1. A cutting device suitable for metal sheets, characterized in that: The cutting device comprises a frame (1) and a power unit arranged on the frame (1), the power unit comprising a cutter assembly (2) and a drive assembly (3), the frame (1) is provided with a feed plate (10) for transmitting metal sheets, the cutter assembly (2) is located in front of the feed plate (10) along a first direction, and the first direction is the travel direction of the metal sheets; The cutter assembly (2) comprises a movable seat (20) slidably arranged on the frame (1), a first driving mechanism (21) fixedly arranged on the movable seat (20), a first cutter (22) connected to the output end of the first driving mechanism (21), and a second cutter (23) rotatably arranged on the movable seat (20), wherein the first cutter (22) and the second cutter (23) are both flat-edged circular blades; The lower end of the first cutter (22) and the upper end of the second cutter (23) are in contact with each other along a first direction, so that when the first cutter (22) is driven by the first drive mechanism (21) to rotate, the second cutter (23) can be driven to rotate synchronously and shear the metal sheet through friction. The drive assembly (3) is arranged on the frame (1) and connected to the movable seat (20); the cutter assembly (2) is capable of reciprocating along a second direction under the drive of the drive assembly (3) and cutting the metal sheet during the movement along the second direction, wherein the second direction intersects with the first direction.

2. The cutting device according to claim 1, characterized in that: The cutting device further comprises a guide rail (12) extending along the second direction and a slider (13) slidably arranged on the guide rail (12); the guide rail (12) is fixedly mounted on the frame (1); and the slider (13) is fixedly connected to the movable seat (20).

3. The cutting device according to claim 2, characterized in that: The driving assembly (3) comprises a driving motor (30) fixedly arranged on the moving seat (20), a gear (31) fixedly arranged at the output end of the driving motor (30), and a rack (32) meshing with the gear (31); the rack (32) is fixedly arranged on the frame (1) and extends along the second direction.

4. The cutting device according to claim 1, characterized in that: The power unit further comprises a clamping assembly (4), the clamping assembly (4) comprising a second driving mechanism (40) arranged on the frame (1) and a pressing plate (41) driven by the second driving mechanism (40) to move up and down, the pressing plate (41) being used to clamp and fix the metal sheet on the feeding plate (10).

5. The cutting device according to any one of claims 1 to 4, characterized in that: The movable seat (20) comprises a seat body (200) and a mounting frame (201) arranged on the seat body (200); the first driving mechanism (21) is arranged on the seat body (200); the first cutter (22) and the second cutter (23) are both rotatably arranged on the mounting frame (201); and the first cutter (22) is located in front of the second cutter (23) along a first direction; The bottom end of the seat body (200) is higher than the upper surface of the feeding plate (10), and there is a distance between the two that can avoid the metal sheet; The portion of the mounting frame (201) located at the rear side of the first cutter (22) along the first direction is not higher than the upper surface of the feed plate (10), and the portion of the mounting frame (201) located at the front side of the second cutter (23) along the first direction is formed with a guide arc surface (2010), and the guide arc surface (2010) is located at the rear side of the first cutter (22) and the second cutter (23) along the second direction; Along the second direction, the distance between the guide arc surface (2010) and the upper surface of the feeding plate (10) along the height direction decreases uniformly.

6. The cutting device according to claim 5, characterized in that The mounting frame (201) comprises a first mounting plate (2011), an extension plate (2013) and a second mounting plate (2012) which are fixedly connected in sequence, the first mounting plate (2011) being fixedly connected to the base body (200), the first driving mechanism (21) having a rotating output end extending from the first mounting plate (2011), the first cutter (22) being fixedly connected to the rotating output end, and the second cutter (23) being rotatably arranged on the second mounting plate (2012).

7. The cutting device according to claim 5, characterized in that: The cutting device further comprises a support assembly (5), the support assembly (5) being no higher than the upper surface of the feed plate (10), the support assembly (5) comprising a first connecting member (50), an extension rod (51) and a supporting member connected in sequence, the first connecting member (50) being fixedly connected to a portion of the mounting frame (201) located behind the first cutter (22) along the first direction; The support member is located in front of the first cutter (22) along the first direction, and in front of the first cutter (22) and the second cutter (23) along the second direction, and the upper end of the support member is in the same plane as the upper surface of the feeding plate (10).

8. The cutting device according to claim 7, characterized in that: The support member is a first circular shaft (52) rotatably arranged on the extension rod (51), the rotation axis of the first circular shaft (52) is in the same direction as the first direction, and the first circular shaft (52) is used for rolling contact with the metal sheet.

9. The cutting device according to claim 8, characterized in that The cutting device further comprises a pressing assembly (6), wherein the pressing assembly (6) comprises: A connecting frame (60) fixedly mounted on the movable seat (20); A connecting plate (61) rotatably mounted on the connecting frame (60); a second circular shaft (62) rotatably mounted on the connecting plate (61); and An elastic member (63) is disposed between the connecting frame (60) and the connecting plate (61) and applies pressure to the connecting plate (61) so that the connecting plate (61) has a tendency to swing downward; Wherein, the pressing assembly (6) is located in front of the first cutter (22) along the first direction, and the second circular shaft (62) is located directly above the first circular shaft (52).

10. The cutting device according to any one of claims 1 to 4, characterized in that: The cutting device also includes a control unit and a detection unit for detecting the movement stroke information of the metal sheet. The control unit is electrically connected to the detection unit and the power unit. The control unit obtains the movement stroke information of the metal sheet through the detection unit and controls the operation of the power unit according to the movement stroke information of the metal sheet.

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