A board cutting apparatus

Abstract

The utility model relates to the technical field of plate processing, disclose a plate cutting equipment, including frame and be located on the plate support assembly and cutting device of frame, cutting device is located on the upside of plate support assembly, plate support assembly includes first drive arrangement and at least two sliding connections on the support structure of frame, two support structures all are with first drive arrangement transmission connection, be equipped with work position on the frame, first drive arrangement can drive two support structures alternate movement to work position, still include positioning device, positioning device includes located on the first positioning portion of support structure and located on the second positioning portion of frame, be equipped with the positioning groove on first positioning portion, the second positioning portion includes the positioning piece that can move up and down, when support structure moves to work position, the positioning piece is clamped and located in the positioning groove, to restrict support structure sliding, beneficial effect: be favorable to the accuracy of plate cutting, improve cutting quality.

Description

Technical Field

[0001] This utility model relates to the field of sheet metal processing technology, and in particular to a sheet metal cutting device. Background Technology

[0002] When cutting sheet metal, the sheet metal is usually placed on a support structure and then cut using a movable laser cutting device. The cut sheet metal is then removed. Later, to improve production efficiency, two support structures were set up to transport sheet metal alternately. While a sheet metal supported by one support structure is being cut, the production staff removes the cut sheet metal from the other support structure and places a new sheet metal to be cut on that support structure, ready for the next cut.

[0003] In the aforementioned sheet metal cutting equipment, since the two support structures need to alternately transport the sheet metal, the support structures must be movably mounted on the frame. However, in reality, due to insufficient levelness of the guide rails on the frame, complex factory environments, and ground vibrations, the support structures may shift during sheet metal cutting, resulting in inaccurate cutting and affecting the cutting quality. Utility Model Content

[0004] The main purpose of this utility model is to propose a plate cutting device, which aims to solve the technical problem of easy displacement of the supporting structure in the prior art.

[0005] To achieve the above objectives, this utility model proposes a sheet metal cutting device, including a frame, a sheet metal support assembly and a cutting device mounted on the frame, with the cutting device located on the upper side of the sheet metal support assembly. The sheet metal support assembly includes a first driving device and at least two support structures slidably connected to the frame, both of which are drively connected to the first driving device. The frame has a working position, and the first driving device can drive the two support structures to alternately move to the working position. The device also includes a positioning device, comprising a first positioning part mounted on the support structure and a second positioning part mounted on the frame. The first positioning part has a positioning groove, and the second positioning part includes a positioning element that can move up and down. When the support structure moves to the working position, the positioning element is engaged in the positioning groove to restrict the sliding of the support structure.

[0006] The beneficial effects of this utility model are as follows: when the supporting structure moves to the working position, the positioning part moves in the vertical direction and is inserted into the positioning groove to limit the sliding of the supporting structure, which helps to improve the accuracy of plate cutting and improve the cutting quality.

[0007] Preferably, the second positioning part further includes a second driving device that is connected to the positioning member in a transmission manner. The second driving device can drive the positioning member to move up and down. The first positioning part includes a protrusion provided on the supporting structure. The positioning groove is provided on the protrusion and the opening faces upward, so that the friction between the supporting structure and the guide rail is greater and it is less likely to move.

[0008] Preferably, the positioning element is provided with a first guide slope and / or the side wall of the positioning groove is provided with a second guide slope to guide the positioning element into the positioning groove, which is beneficial to improving the positioning success rate and production efficiency.

[0009] Preferably, the first positioning part is located at the end of the supporting structure, which is beneficial to the production and assembly of the plate cutting equipment and will not interfere with the movement of the supporting structure.

[0010] Preferably, the frame is provided with two parallel guide rail assemblies arranged in the vertical direction, and two supporting structures are respectively engaged on the two guide rail assemblies and can slide along the corresponding guide rail assemblies; the positioning device includes two first positioning parts respectively provided on the two supporting structures and a second positioning part provided on the frame, the second positioning part is provided with two positioning elements arranged at intervals in the vertical direction, and the two positioning elements correspond to the first positioning parts on the two supporting structures respectively, which helps to reduce the amount of the second drive device and reduce production costs.

[0011] Preferably, the first drive device is connected to the support structure via a support transmission assembly. The support transmission assembly includes a first sprocket, a second sprocket, and a main drive chain. The first and second sprockets are arranged along the sliding direction of the support structure and rotatably connected to the frame. The main drive chain is wound around the first and second sprockets. The two ends of the main drive chain located above and below the first and second sprockets are respectively called the upper drive section and the lower drive section. The upper drive section and the lower drive section correspond to the positions of the two support structures arranged in the vertical direction. The main drive chain is provided with two pushers, and the support structures are provided with protrusions protruding from their sides. When the main drive chain rotates, the two pushers push the protrusions on the two support structures respectively, causing one of the two support structures to move away from the working position and the other to move closer to the working position. This helps to increase the cutting volume per unit time, thereby improving production efficiency.

[0012] Preferably, the frame is provided with two support transmission components, which are respectively connected to the two sides of the support structure. The first drive device includes a first drive motor, and both support transmission components are connected to the first drive motor. This helps to reduce the maintenance frequency and extend the service life of the plate cutting equipment.

[0013] Preferably, the frame includes multiple sub-frames, which are spliced ​​and fixed together by splicing plates and splicing screws to facilitate the transportation of the frame.

[0014] Preferably, the cutting device includes a cutting moving frame and a cutting head disposed on the cutting moving frame. The frame is provided with two parallel cutting moving track structures located on both sides of the plate support assembly. The two ends of the cutting moving frame are respectively locked onto the two cutting moving track structures. The cutting moving frame is also provided with a third driving device to drive the cutting moving frame to move along the cutting moving track structure. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the structure of the plate cutting equipment in the embodiments of this utility model; Figure 2 for Figure 1 A magnified view of a section at point A in the middle; Figure 3 This is a schematic diagram of the structure of the frame and cutting device in the embodiment of this utility model; Figure 4 for Figure 3 A magnified view of a section at point B in the middle; Figure 5 for Figure 3 A magnified view of a section at point C; Figure 6 This is a schematic diagram of the structure of the second positioning part in an embodiment of this utility model; Figure 7 This is a schematic diagram of the structure of the first positioning part in an embodiment of this utility model; Figure 8 This is a schematic diagram of the structure of the first driving device and the supporting transmission assembly in an embodiment of this utility model; Figure 9 This is a schematic diagram of the structure of the plate cutting equipment in this embodiment of the present utility model (the supporting structure on the upper side is hidden for easy display). Figure 10 for Figure 9 A magnified view of a section at point D; Figure 11 for Figure 9 A magnified view of a section at point E in the middle.

[0017] In the attached diagram: 1-Frame, 11-Working position, 12-Preparation position, 13-Subframe, 131-Splicing hole, 14-Guide rail assembly, 15-Cutting moving track structure, 2-Sheet support assembly, 21-Support structure, 211-Sheet frame, 212-Support mesh plate, 213-Protrusion, 22-First drive device, 23-Support transmission assembly, 231-First sprocket, 232-Second sprocket, 233-Main drive chain, 2331-Upper transmission section, 2332-Lower transmission section, 234-Pushing component, 3-Positioning device, 31-First positioning part, 311-Protrusion, 312-Positioning groove, 3121-Second guide ramp, 32-Second positioning part, 321-Second drive device, 322-Positioning component, 3221-First guide ramp, 4-Cutting device, 41-Cutting moving frame, 42-Cutting head, 43-Third drive device.

[0018] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] It should be noted that if the embodiments of this utility model involve directional indicators, such as up, down, left, right, front, back, etc., the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0021] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of indicated technical features. Therefore, features defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. If the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0022] like Figures 1 to 11As shown, a sheet metal cutting device includes a frame 1, a sheet metal support assembly 2 and a cutting device 4 mounted on the frame 1. The cutting device 4 is located on the upper side of the sheet metal support assembly 2. The sheet metal support assembly 2 includes a first driving device 22 and at least two support structures 21 slidably connected to the frame 1. Both support structures 21 are driven by the first driving device 22. The frame 1 has a working position 11. The first driving device 22 can drive the two support structures 21 to move alternately to the working position 11. The device also includes a positioning device 3. The positioning device 3 includes a first positioning part 31 mounted on the support structure 21 and a second positioning part 32 mounted on the frame 1. The first positioning part 31 has a positioning groove 312. The second positioning part 32 includes a positioning element 322 that can move up and down. When the support structure 21 moves to the working position 11, the positioning element 322 is engaged in the positioning groove 312 to restrict the sliding of the support structure 21.

[0023] When the supporting structure 21 moves to the working position 11, the positioning element 322 moves in the vertical direction and is inserted into the positioning groove 312 to limit the sliding of the supporting structure 21, which helps to improve the accuracy of plate cutting and improve the cutting quality.

[0024] In this embodiment, the working position 11 refers to the position where the supporting structure 21 is located directly below the cutting device 4, and the cutting device 4 can support the plate on the structure 21 for processing.

[0025] In some specific embodiments, reference is made to Figure 2 , Figure 6 and Figure 7 The second positioning part 32 also includes a second driving device 321 that is connected to the positioning member 322 in a transmission manner. The second driving device 321 can drive the positioning member 322 to move up and down. The first positioning part 31 includes a protrusion 311 provided on the supporting structure 21, and a positioning groove 312 provided on the protrusion 311 with its opening facing upward.

[0026] Specifically, the second driving device 321 is a cylinder. The positioning member 322 is elongated and extends horizontally and is perpendicular to the sliding direction of the supporting structure 21. The positioning groove 312 extends horizontally and is perpendicular to the sliding direction of the supporting structure 21.

[0027] When the supporting structure 21 reaches the working position 11 and the positioning groove 312 is located below the positioning member 322, the second driving device 321 is activated, driving the positioning member 322 to move downward, so that the positioning member 322 is locked in the positioning groove 312.

[0028] In this embodiment, the supporting structure 21 includes a frame 211 and a supporting mesh plate 212 disposed within the frame 211, and a second positioning part 32 is disposed on the frame 211. The supporting mesh plate 212 helps to make the surface of the plate material supported thereon smoother, reduces vibration and offset during the cutting process, and improves cutting accuracy.

[0029] In this embodiment, the first positioning part 31 includes a protrusion 311 and a positioning groove 312 is provided on the protrusion 311. This arrangement avoids directly slotting on the supporting structure 21, which helps to reduce the processing difficulty.

[0030] Since the support structure 21 is mounted on the frame 1 via a guide rail, the opening of the positioning groove 312 in this embodiment faces upward, which means that the positioning member 322 needs to move downward to fit into the positioning groove 312. At the same time, the positioning groove 312 also exerts a downward pressure on the support structure 21, making the friction between the support structure 21 and the guide rail greater and less likely to move.

[0031] In some other embodiments, the positioning groove 312 is provided on the plate frame 211 of the supporting structure 21.

[0032] In some specific embodiments, reference is made to Figure 6 and Figure 7 The positioning member 322 is provided with a first guide slope 32211 and / or the side wall of the positioning groove 312 is provided with a second guide slope 3121 to guide the positioning member 322 into the positioning groove 312.

[0033] Specifically, the positioning member 322 is provided with a first guide slope 32211, and the side wall of the positioning groove 312 is also provided with a second guide slope 3121. The positioning member 322 is provided with first guide slopes 32211 on both the front and rear sides. The first guide slope 32211 on the front side is inclined from top to bottom in the direction from front to back, and the first guide slope 32211 on the rear side is inclined from top to bottom in the direction from back to front. The positioning groove 312 is provided with second guide slopes 3121 on both the front and rear side walls. The second guide slope 3121 on the front side is inclined from top to bottom in the direction from front to back, and the second guide slope 3121 on the rear side is inclined from top to bottom in the direction from back to front. The first guide slope 32211 on the front side of the positioning member 322 cooperates with the second guide slope 3121 on the front side wall of the positioning groove 312, or the first guide slope 32211 on the rear side of the positioning member 322 cooperates with the second guide slope 3121 on the rear side wall of the positioning groove 312, guiding the positioning member 322 into the second groove. Even if the supporting structure 21 cannot slide accurately to the position where the positioning groove 312 is directly below the positioning member 322, the positioning member 322 and the positioning groove 312 can still be matched during positioning through the cooperation of the first guide slope 32211 and the second guide slope 3121, which is beneficial to improving the positioning success rate and production efficiency.

[0034] In some specific embodiments, reference is made to Figure 1 and Figure 2 The first positioning part 31 is located at the end of the supporting structure 21.

[0035] Specifically, in addition to the working position 11, the frame 1 also has a preparation position 12. When the support structure 21 carries the sheet metal to the working position 11, the cutting device 4 cuts the sheet metal. At this time, another support structure 21 is located in the preparation position 12. The production personnel remove the already cut sheet metal from the support structure 21 in the preparation position 12 and then place the sheet metal to be cut onto that support structure 21. Once the sheet metal on the support structure 21 in the working position 11 has been cut, the first drive device 22 moves the two support structures 21 and exchanges positions, repeating the above process.

[0036] In this embodiment, on the frame 1, the preparation position 12, the working position 11, and the second positioning part 32 are arranged sequentially along the sliding direction of the supporting structure 21. Since the side of the supporting structure 21 is connected to the guide rail on the frame 1, placing the first positioning part 31 on the side of the supporting structure 21 may cause interference during installation. Therefore, placing the first positioning part 31 at the end of the supporting structure 21 is beneficial for the production and assembly of the plate cutting equipment and will not interfere with the movement of the supporting structure 21.

[0037] In some specific embodiments, reference is made to Figure 2 , Figure 3 , Figures 5 to 7 The frame 1 is provided with two parallel guide rail assemblies 14 arranged in the vertical direction. Two support structures 21 are respectively locked onto the two guide rail assemblies 14 and can slide along the corresponding guide rail assemblies 14. The positioning device 3 includes two first positioning parts 31 respectively provided on the two support structures 21 and a second positioning part 32 provided on the frame 1. The second positioning part 32 is provided with two positioning elements 322 arranged at intervals in the vertical direction. The two positioning elements 322 correspond to the first positioning parts 31 on the two support structures 21 respectively.

[0038] When the upper support structure 21 is in the working position 11, the first positioning part 31 on the support structure 21 is located between the two positioning members 322 of the second positioning part 32. The second driving device 321 drives the two positioning members 322 to move synchronously, so that the positioning member 322 located on the upper side is engaged in the positioning groove 312 of the first positioning part 31. When the lower support structure 21 is in the working position 11, the first positioning part 31 on the support structure 21 is located below the two positioning members 322 of the second positioning part 32. The second driving device 321 drives the two positioning members 322 to move synchronously, so that the positioning member 322 located on the lower side is engaged in the positioning groove 312 of the first positioning part 31.

[0039] In this embodiment, a second drive device 321 can be used for positioning of two support structures 21, which helps to reduce the amount of second drive devices 321 used and reduce production costs.

[0040] Furthermore, the plate cutting equipment in this embodiment includes two positioning devices 3 to more stably position the supporting structure 21 on the working position 11.

[0041] In some specific embodiments, reference is made to Figures 8 to 11The first drive device 22 is connected to the support structure 21 via a support transmission assembly 23. The support transmission assembly 23 includes a first sprocket 231, a second sprocket 232, and a main drive chain 233. The first sprocket 231 and the second sprocket 232 are arranged along the sliding direction of the support structure 21 and are rotatably connected to the frame 1. The main drive chain 233 is wound around the first sprocket 231 and the second sprocket 232. The two ends of the main drive chain 233 located above and below the first sprocket 231 and the second sprocket 232 are respectively called the upper transmission section 2. 3311 and lower transmission section 23322, upper transmission section 23311 and lower transmission section 23322 correspond to the positions of two support structures 21 arranged in the vertical direction, respectively. The main transmission chain 233 is provided with two pushers 234, and the support structure 21 is provided with a protrusion 213 protruding from its side. When the main transmission chain 233 rotates, the two pushers 234 push the protrusions 213 on the two support structures 21 respectively, so that one of the two support structures 21 moves away from the working position 11 and the other moves closer to the working position 11.

[0042] In this embodiment, it is assumed that the upper support structure 21 is in the working position 11 and the lower support structure 21 is in the ready position 12. At this time, the first drive device 22 drives the main drive chain 233 to rotate forward. The two pushers 234 on the main drive chain 233 push the protrusions 213 on the two support structures 21 respectively, and the protrusions 213 are close to the ends of the support structures 21, so that the upper support structure 21 moves towards the ready position 12 and the lower support structure 21 moves towards the working position 11. When the upper support structure 21 reaches the ready position 12 and the lower support structure 21 reaches the working position 11, and the two support structures 21 need to exchange positions, the first drive device 22 drives the main drive chain 233 to rotate in reverse, so that the two pushers 234 exchange pushing the protrusions 213 on the two support structures 21, so that the upper support structure 21 moves towards the working position 11 and the lower support structure 21 moves towards the ready position 12. The two support structures 21 can be interchanged in position through the first drive device 22 and the support transmission assembly 23, so that while the plate is being cut, preparations for cutting another plate can be made, making full use of time, increasing the cutting volume per unit time, and thus improving production efficiency.

[0043] In some specific embodiments, reference is made to Figure 8 The frame 1 is provided with two support transmission components 23, which are respectively connected to the two sides of the support structure 21. The first drive device 22 includes a first drive motor, and both support transmission components 23 are connected to the first drive motor.

[0044] Specifically, the first drive device 22 is a worm gear reducer motor. In this embodiment, a single worm gear reducer motor drives two supporting rotating components simultaneously, thereby simultaneously driving the movement of both sides of the supporting structure 21. This improves the synchronicity of the movement of both sides of the supporting structure 21, making the movement of the supporting structure 21 more stable and smooth. It also reduces wear between the supporting structure 21 and related structures such as the guide rail assembly 14, thereby reducing the maintenance frequency and extending the service life of the sheet metal cutting equipment.

[0045] In some specific embodiments, reference is made to Figure 4 The frame 1 includes multiple sub-frames 13, which are spliced ​​and fixed together by splicing plates and splicing screws.

[0046] Since the frame 1 needs to have a working position 11 and a ready position 12, and the working position 11 and the ready position 12 are arranged along the sliding direction of the supporting structure 21, the frame 1 is relatively long and difficult to handle during transportation. Therefore, in this embodiment, the frame 1 adopts the form of splicing multiple sub-frames 13. Adjacent sub-frames 13 have multiple splicing holes 131 on their adjacent uprights, corresponding to multiple through holes on the splicing plate. Then, splicing screws are screwed into the splicing holes 131 and the through holes on the splicing plate, thereby splicing two adjacent sub-frames 13 together, thus facilitating the transportation of the frame.

[0047] In some specific embodiments, reference is made to Figure 3 The cutting device 4 includes a cutting moving frame 41 and a cutting head 42 disposed on the cutting moving frame 41. The frame 1 is provided with two parallel cutting moving track structures 15 located on both sides of the plate support assembly 2. The two ends of the cutting moving frame 41 are respectively locked on the two cutting moving track structures 15. The cutting moving frame 41 is also provided with a third driving device 43 to drive the cutting moving frame 41 to move along the cutting moving track structure 15.

[0048] Each cutting moving track structure 15 is provided with a rack parallel to it. The third driving device 43 on the cutting moving frame 41 includes a third motor and a gear on the shaft of the third motor. The gear meshes with the rack. The third motor drives the gear to rotate, so that the gear moves along the rack, thereby driving the cutting moving frame 41 to move along the cutting moving track.

[0049] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the inventive concept of the present utility model using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A sheet metal cutting device, characterized in that: It includes a frame (1) and a plate support assembly (2) and a cutting device (4) disposed on the frame (1), wherein the cutting device (4) is disposed on the upper side of the plate support assembly (2); The plate support assembly (2) includes a first drive device (22) and at least two support structures (21) slidably connected to the frame (1). Both support structures (21) are connected to the first drive device (22) in a transmission manner. The frame (1) is provided with a working position (11). The first drive device (22) can drive the two support structures (21) to move alternately to the working position (11). It also includes a positioning device (3), which includes a first positioning part (31) on the support structure (21) and a second positioning part (32) on the frame (1). The first positioning part (31) is provided with a positioning groove (312), and the second positioning part (32) includes a positioning member (322) that can move up and down. When the support structure (21) moves to the working position (11), the positioning member (322) is locked in the positioning groove (312) to restrict the sliding of the support structure (21).

2. The plate cutting equipment according to claim 1, characterized in that: The second positioning part (32) further includes a second driving device (321) that is connected to the positioning member (322) in a transmission manner. The second driving device (321) can drive the positioning member (322) to move up and down. The first positioning part (31) includes a protrusion (311) provided on the supporting structure (21). The positioning groove (312) is provided on the protrusion (311) and its opening faces upward.

3. The plate cutting equipment according to claim 1, characterized in that: The positioning member (322) is provided with a first guide slope (3221) and / or the side wall of the positioning groove (312) is provided with a second guide slope (3121) to guide the positioning member (322) into the positioning groove (312).

4. The plate cutting equipment according to claim 1, characterized in that: The first positioning part (31) is located at the end of the supporting structure (21).

5. The plate cutting equipment according to claim 1, characterized in that: The frame (1) is provided with two parallel guide rail assemblies (14) arranged in the vertical direction. The two supporting structures (21) are respectively locked on the two guide rail assemblies (14) and can slide along the corresponding guide rail assemblies (14). The positioning device (3) includes two first positioning parts (31) respectively provided on the two supporting structures (21) and a second positioning part (32) provided on the frame (1). The second positioning part (32) is provided with two positioning elements (322) arranged at intervals in the vertical direction. The two positioning elements (322) correspond to the first positioning parts (31) on the two supporting structures (21).

6. The plate cutting equipment according to claim 5, characterized in that: The first drive device (22) is connected to the support structure (21) via a support transmission assembly (23). The support transmission assembly (23) includes a first sprocket (231), a second sprocket (232), and a main drive chain (233). The first sprocket (231) and the second sprocket (232) are arranged along the sliding direction of the support structure (21) and rotatably connected to the frame (1). The main drive chain (233) is wound around the first sprocket (231) and the second sprocket (232). The main drive chain (233) is located at the upper and lower ends of the first sprocket (231) and the second sprocket (232), respectively, and is called the upper drive section (2331) and the lower drive section (2332). The upper drive section (2331) and the lower drive section (2332) correspond to the positions of the two support structures (21) arranged in the vertical direction. The main drive chain (233) is provided with two pushers (234), and the support structure (21) is provided with a protrusion (213) protruding from its side. When the main drive chain (233) rotates, the two pushers (234) push the protrusion (213) on the two support structures (21) respectively, so that one of the two support structures (21) moves away from the working position (11) and the other moves closer to the working position (11).

7. The plate cutting equipment according to claim 6, characterized in that: The frame (1) is provided with two support transmission components (23), which are respectively connected to the two sides of the support structure (21). The first drive device (22) includes a first drive motor, and both support transmission components (23) are connected to the first drive motor.

8. The plate cutting equipment according to claim 1, characterized in that: The frame (1) includes multiple sub-frames (13), which are spliced ​​and fixed together by splicing plates and splicing screws.

9. The plate cutting equipment according to claim 1, characterized in that: The cutting device (4) includes a cutting moving frame (41) and a cutting head (42) disposed on the cutting moving frame (41). The frame (1) is provided with two parallel cutting moving track structures (15) located on both sides of the plate support assembly (2). The two ends of the cutting moving frame (41) are respectively locked on the two cutting moving track structures (15). The cutting moving frame (41) is also provided with a third driving device (43) to drive the cutting moving frame (41) to move along the cutting moving track structure (15).

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