Laser cutting device for machining sheet metal

Abstract

The utility model belongs to the technical field of metal plate cutting, and particularly relates to a laser cutting device for machining metal plates, which comprises a workbench, a left-right penetrating type placing groove is formed in the center of the top of the workbench, and a positioning assembly is arranged between the front surface and the rear surface in the placing groove. A through groove is formed in the center of the lower surface of the interior of the placement groove, an insertion groove is formed in the center of the lower surface of the interior of the through groove, the front surface of the interior of the insertion groove communicates with the outside, a collection box is inserted into the insertion groove, a supporting frame is fixedly connected to the center of the top of the workbench, and a moving assembly is arranged on the upper portion of the interior of the supporting frame. The bottom of the moving assembly is fixedly connected with an electric lifting rod. A metal plate needing to be cut is positioned through the positioning assembly at the top of the workbench, and the metal plate is prevented from deviating during cutting, so that the subsequent cutting process is prevented from being affected, and the device is good in using effect.

Description

Technical Field

[0001] The utility model relates to the technical field of metal plate cutting, in particular to a laser cutting device for processing metal plates. Background Art

[0002] Laser cutting uses a high-power density laser beam to irradiate the material to be cut, so that the material is quickly heated to the vaporization temperature, evaporated to form holes, and as the beam moves on the material, the holes continuously form a very narrow slit to complete the cutting of the material. In the process of processing metal sheets, it is often necessary to cut them, so laser cutting devices are often used.

[0003] However, most existing laser cutting devices are inconvenient for positioning metal sheets, and cause the metal sheets to easily shift during cutting, thereby affecting the cutting effect of the device. Therefore, a laser cutting device for processing metal sheets is proposed to address the above problems. Utility Model Content

[0004] In order to make up for the deficiencies of the prior art and solve the problem that most existing laser cutting devices are inconvenient to position metal sheets and cause the metal sheets to easily shift during cutting, thereby affecting the cutting effect of the device, the utility model proposes a laser cutting device for processing metal sheets.

[0005] The technical solution adopted by the utility model to solve its technical problems is: the laser cutting device for processing metal plates described in the utility model comprises a workbench, a left-right through-type placement groove is opened at the center of the top of the workbench, a positioning component is arranged between the front and rear surfaces of the placement groove, a through groove is opened at the center of the lower surface of the placement groove, a slot is opened at the center of the lower surface of the through groove, and the front surface of the slot is communicated with the outside, a collection box is inserted in the slot, a support frame is fixedly connected to the center of the top of the workbench, a moving component is arranged above the support frame, an electric lifting rod is fixedly connected to the bottom of the moving component, an externally threaded sleeve rod is fixedly connected to the bottom end of the electric lifting rod, a splash shield is arranged on the outer surface of the externally threaded sleeve rod, and the splash shield A threaded hole is provided on the upper part of the interior, and the threaded hole is threadedly connected to the external threaded sleeve rod. A laser cutting head is fixedly installed inside the external threaded sleeve rod. The bottom end of the laser cutting head passes through the bottom end of the external threaded sleeve rod and is located inside the splash cover. The bottom end of the laser cutting head and the bottom of the splash cover are on the same horizontal plane. The metal sheet to be cut is positioned by the positioning component on the top of the workbench, and the metal sheet is prevented from shifting during cutting, thereby avoiding affecting the subsequent cutting process and making the device more effective. At the same time, the waste chips generated by the laser cutting head after working can be blocked by the splash cover, and the waste chips blocked by the splash cover can fall into the collection box and be subsequently processed in a centralized manner, making the device more practical.

[0006] Preferably, the moving component includes an inner groove, and the inner groove is opened above the inside of the support frame, and a limit groove that penetrates up and down is opened at the center of the lower surface of the inner groove, and a motor is fixedly installed on the rear surface of the inner groove, and a threaded rod is fixedly connected to the output end of the motor, and the threaded rod is rotatably connected to the inner groove, and an internal threaded sleeve block is threadedly connected to the outer surface of the threaded rod, and the internal threaded sleeve block is slidably connected to the inner groove, and a limit block is fixedly connected to the bottom of the internal threaded sleeve block, and the bottom of the limit block is fixedly connected to the top of the electric lifting rod, the limit block is located inside the limit groove and is slidably connected to the limit groove, the motor is connected to an external power supply to make the motor work, and the motor drives the threaded rod to rotate after working, and the threaded rod can drive the internal threaded sleeve block threadedly connected to it to slide inside the inner groove after rotating, and then the sliding of the internal threaded sleeve block drives the limit block to slide inside the limit groove, and after the limit block slides, the electric lifting rod and the laser cutting head at its bottom can be driven to move, and at the same time, the motor can be reversed so that the laser cutting head can move back and forth.

[0007] Preferably, the motor and the electric lifting rod are both electrically connected to an external power supply, and the external power supply supplies power to the motor and the electric push rod.

[0008] Preferably, the positioning assembly includes two slide grooves, and the two slide grooves are respectively opened at the centers of the front and rear surfaces inside the placement groove, and sliders are slidably connected to the left and right sides of the slide groove, and a positioning plate is fixedly connected between the two left sliders and between the two right sliders, and a positioning groove is opened on the opposite side of the two positioning plates, and a left and right penetrating guide hole is opened at the center of the slider, and a guide rod is fixedly connected between the centers of the left and right sides of the slide groove, and the right end of the guide rod penetrates the guide hole and is slidably connected to the guide hole, and an upper and lower penetrating through groove is opened at the center of the upper surface of the slide groove, and the upper surface of the guide hole is opened at the center. A through hole is provided that penetrates from top to bottom, a pull rod is slidably connected inside the through hole, the top end of the pull rod passes through the through groove and is fixedly connected with a pull plate, the bottom end of the pull rod is located inside the guide hole and is fixedly connected to a limiting plate, the bottom of the limiting plate is fixedly connected to a limiting pad, the outer surface of the pull rod is located inside the through hole and is sleeved with a spring, the top end of the spring is fixedly connected to the inner side wall of the through hole, the bottom end of the spring is fixedly connected to the outer surface of the pull rod, the spring is in a compressed state when the limiting plate and the limiting pad squeeze and fit the outer surface of the guide rod, and the rebound force of the spring makes the limiting plate and the limiting pad squeeze and limit the guide rod more stably, thereby making the positioning effect of the positioning plate better.

[0009] Preferably, the limiting plate and the limiting pad are both arranged in an arc shape, and the limiting pad is made of rubber material, which facilitates the limiting plate and the limiting pad to squeeze and clamp the outer surface of the guide rod, and the limiting pad made of rubber material has a better anti-slip effect and makes the extrusion and clamping more stable.

[0010] Preferably, the bottom of the pull plate fits with the top of the workbench, and the bottom of the limit pad fits with the outer surface of the guide rod, the pull plate can be moved to separate from the top of the workbench, and the bottom of the limit pad can be separated from the outer surface of the guide rod.

[0011] Preferably, the front surface of the collection box passes through the front surface of the workbench, and a handle is fixedly connected at the center, so that the collection box can be easily moved.

[0012] The utility model is beneficial in that:

[0013] 1. The utility model positions the metal sheet to be cut through the positioning assembly on the top of the workbench, and avoids the metal sheet from being offset during cutting, thereby avoiding affecting the subsequent cutting process and making the device more effective.

[0014] 2. The utility model uses a splash shield to block the waste chips generated by the laser cutting head after operation, and the waste chips blocked by the splash shield can fall into the collection box and be subsequently processed in a centralized manner, thereby making the device more practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0016] Figure 1 It is a schematic diagram of the three-dimensional structure in the first embodiment;

[0017] Figure 2 It is a partial right section structure schematic diagram in Embodiment 1;

[0018] Figure 3 It is a schematic diagram of a partial left-section structure in Embodiment 1;

[0019] Figure 4 For Example 1 Figure 3 The enlarged structural diagram at A in the middle;

[0020] Figure 5 This is a schematic diagram of the handle structure in the second embodiment.

[0021] In the figure: 1. workbench; 2. placement slot; 3. positioning assembly; 301. positioning plate; 302. positioning slot; 303. slider; 304. slide slot; 305. through slot; 306. pull rod; 307. pull plate; 308. spring; 309. through hole; 310. limit plate; 311. limit pad; 312. guide rod; 313. guide hole; 4. support frame; 5. splash shield; 6. through slot; 7. collection box; 8. slot; 9. moving assembly; 901. inner slot; 902. threaded rod; 903. inner thread sleeve block; 904. motor; 905. limit slot; 906. limit block; 10. electric lifting rod; 11. threaded hole; 12. laser cutting head; 13. outer thread sleeve rod; 14. handle. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] Embodiment 1

[0024] See also Figure 1-4 As shown, a laser cutting device for processing metal plates comprises a workbench 1, wherein a placement groove 2 of a left-right through-type is provided at the center of the top of the workbench 1, a positioning component 3 is provided between the front and rear surfaces of the placement groove 2, a through groove 6 is provided at the center of the lower surface of the placement groove 2, a slot 8 is provided at the center of the lower surface of the through groove 6, and the front surface of the slot 8 is communicated with the outside, a collection box 7 is inserted in the slot 8, a support frame 4 is fixedly connected at the center of the top of the workbench 1, a moving component 9 is provided above the support frame 4, and an electric lifting rod 10 is fixedly connected to the bottom of the moving component 9 The bottom end of the electric lifting rod 10 is fixedly connected to an externally threaded sleeve rod 13, and a splash shield 5 is arranged on the outer surface of the externally threaded sleeve rod 13. A threaded hole 11 is provided on the top of the splash shield 5, and the threaded hole 11 is threadedly connected to the externally threaded sleeve rod 13. A laser cutting head 12 is fixedly installed inside the externally threaded sleeve rod 13. The bottom end of the laser cutting head 12 passes through the bottom end of the externally threaded sleeve rod 13 and is located inside the splash shield 5. The bottom end of the laser cutting head 12 is on the same horizontal plane as the bottom of the splash shield 5. When working, first fit the bottom of the workbench 1 to the flat ground so that the The device is placed firmly, and after the device is placed firmly, the metal sheet to be cut is placed inside the placement groove 2, and is positioned by the positioning component 3 after being placed, and then after the metal sheet to be cut is positioned, the electric lifting rod 10 is connected to the external power supply to make the electric lifting rod 10 work, and after the electric lifting rod 10 works, it drives the external threaded sleeve rod 13 and the laser cutting head 12 to move, and makes the laser cutting head 12 move to the surface of the metal sheet to be cut, and then the laser cutting head 12 is moved and cut by the moving component 9, and the splash shield 5 threadedly connected to the outer surface of the external threaded sleeve rod 13 can prevent waste chips from flying during cutting. Splash, and after cutting, the waste chips can fall through the through groove 6 and be inserted into the collection box 7 inside the slot 8, and then the waste chips in the collection box 7 can be subsequently processed in a centralized manner. Therefore, the metal sheet to be cut is positioned by the positioning component 3 on the top of the workbench 1, and the metal sheet is prevented from shifting during cutting, thereby avoiding affecting the subsequent cutting process and making the device more effective. At the same time, the waste chips generated by the laser cutting head 12 after working can be blocked by the splash shield 5 through the splash shield 5, and the waste chips blocked by the splash shield 5 can fall into the collection box 7 and be subsequently processed in a centralized manner, thereby making the device more practical.

[0025] The moving component 9 includes an inner groove 901, and the inner groove 901 is opened above the inside of the support frame 4, and a limit groove 905 that penetrates up and down is opened at the center of the lower surface of the inner groove 901. A motor 904 is fixedly installed on the rear surface of the inner groove 901, and a threaded rod 902 is fixedly connected to the output end of the motor 904, and the threaded rod 902 is rotatably connected to the inner groove 901. The outer surface of the threaded rod 902 is threadedly connected to an internal threaded sleeve block 903, and the internal threaded sleeve block 903 is slidably connected to the inner groove 901. The bottom of the internal threaded sleeve block 903 is fixedly connected to a limit block 906, and the bottom of the limit block 906 is aligned with the top of the electric lifting rod 10. The end is fixedly connected, the limit block 906 is located inside the limit groove 905 and is slidably connected to the limit groove 905; when working, the motor 904 is connected to the external power supply to make the motor 904 work, and after the motor 904 works, it drives the threaded rod 902 to rotate, and after the threaded rod 902 rotates, it can drive the internal threaded sleeve block 903 threadedly connected to it to slide inside the inner groove 901, and then the sliding of the internal threaded sleeve block 903 drives the limit block 906 to slide inside the limit groove 905, and after the limit block 906 slides, it can drive the electric lifting rod 10 and the laser cutting head 12 at the bottom thereof to move, and at the same time, the motor 904 can be reversed forward and backward so that the laser cutting head 12 can move back and forth.

[0026] The motor 904 and the electric lift rod 10 are both electrically connected to an external power source; when working, the external power source supplies power to the motor 904 and the electric push rod.

[0027] The positioning assembly 3 includes two slide grooves 304, and the two slide grooves 304 are respectively opened at the center of the front and rear surfaces inside the placement groove 2, and the left and right sides of the slide groove 304 are slidably connected with sliders 303, and a positioning plate 301 is fixedly connected between the two left sliders 303 and between the two right sliders 303. Positioning grooves 302 are opened on the opposite sides of the two positioning plates 301, and the center of the slider 303 is opened with a left and right through-type guide hole 313, and a guide rod 312 is fixedly connected between the centers of the left and right sides of the slide groove 304, and the right end of the guide rod 312 passes through the guide hole 313 and is slidably connected to the guide hole 313, and the slide groove 304 A through slot 305 that penetrates up and down is provided at the center of the inner upper surface, a through hole 309 that penetrates up and down is provided at the center of the inner upper surface of the guide hole 313, a pull rod 306 is slidably connected inside the through hole 309, the top end of the pull rod 306 penetrates the through slot 305 and is fixedly connected with a pull plate 307, the bottom end of the pull rod 306 is located inside the guide hole 313 and is fixedly connected with a limiting plate 310, the bottom of the limiting plate 310 is fixedly connected with a limiting pad 311, the outer surface of the pull rod 306 is located inside the through hole 309 and is sleeved with a spring 308, the top end of the spring 308 is fixedly connected to the inner wall of the through hole 309, and the bottom end of the spring 308 is fixedly connected to the outer surface of the pull rod 306;When working, the pull plate 307 is pulled to move the pull plate 307, and after the pull plate 307 moves, it drives the pull rod 306 to move, and after the pull rod 306 moves, the spring 308 is further compressed and has a rebound force, and then the movement of the pull rod 306 drives the movement of the limit plate 310 and the limit pad 311, and after the limit plate 310 and the limit pad 311 move, they can be separated from the extrusion limit of the guide rod 312, and the limit plate 310 and the limit pad 311 are separated from the limit of the slider 303, and then the position of the pull plate 307 is kept inconvenient to move horizontally, and the pull plate 307 can drive the slider 303 to slide inside the slide groove 304, and when the slider 303 slides inside the slide groove 304, it moves under the limit of the sliding connection between the guide rod 312 and the guide hole 313, and makes the slider 303 move stably, and then the movement of the slider 303 can make The positioning plate 301 moves, and after the positioning plate 301 moves, the positioning groove 302 is used to limit the metal sheet to be cut, and then the pull plate 307 is released so that the pull plate 307 and the pull rod 306 move under the rebound force of the spring 308, and the movement of the pull rod 306 can make the limit plate 310 and the limit pad 311 move to press and fit the outer surface of the guide rod 312, and make the slider 303 remain stable after moving the position, so that the positioning plate 301 can position the metal sheet stably, and at the same time, the spring 308 is in a compressed state when the limit plate 310 and the limit pad 311 press and fit the outer surface of the guide rod 312, and the rebound force of the spring 308 makes the limit plate 310 and the limit pad 311 squeeze and limit the guide rod 312 more stably, thereby making the positioning effect of the positioning plate 301 better. ;

[0028] The limiting plate 310 and the limiting pad 311 are both arranged in an arc shape, and the limiting pad 311 is made of rubber material; when working, it is convenient for the limiting plate 310 and the limiting pad 311 to squeeze and clamp the outer surface of the guide rod 312, and the limiting pad 311 made of rubber material has a better anti-slip effect and makes the squeezing and clamping more stable.

[0029] The bottom of the pull plate 307 fits with the top of the workbench 1, and the bottom of the limit pad 311 fits with the outer surface of the guide rod 312; during operation, the pull plate 307 can be moved to separate from the top of the workbench 1, and the bottom of the limit pad 311 can be separated from the outer surface of the guide rod 312.

[0030] Embodiment 2

[0031] See also Figure 5 As shown, compared with Example 1, as another implementation of the utility model, the front surface of the collecting box 7 passes through the front surface of the workbench 1, and a handle 14 is fixedly connected at the center; during operation, the handle 14 facilitates the movement of the collecting box 7.

[0032] The working principle is as follows: first, the bottom of the workbench 1 is fitted with the flat ground to make the device firmly placed, and after the device is firmly placed, the metal sheet to be cut is placed in the placement slot 2, and after placement, the pull plate 307 is pulled to make the pull plate 307 move, and after the pull plate 307 moves, it drives the pull rod 306 to move, and after the pull rod 306 moves, the spring 308 is further compressed and has a rebound force, and then the movement of the pull rod 306 drives the movement of the limit plate 310 and the limit pad 311, and after the limit plate 310 and the limit pad 311 move, they can be separated from the extrusion limit of the guide rod 312, and the limit plate 310 and the limit pad 311 can be separated from the limit of the slider 303, and then the position of the pull plate 307 is kept inconvenient to move horizontally, and the pull plate 307 can be brought The movable slider 303 slides inside the slide groove 304, and when the slider 303 slides inside the slide groove 304, it moves under the limit of the sliding connection between the guide rod 312 and the guide hole 313, and the slider 303 moves stably, and then the movement of the slider 303 can make the positioning plate 301 move, and after the positioning plate 301 moves, it limits the metal sheet to be cut through the positioning groove 302, and then release the pull plate 307 so that the pull plate 307 and the pull rod 306 move under the action of the rebound force of the spring 308, and the movement of the pull rod 306 can make the limit plate 310 and the limit pad 311 move to press and fit the outer surface of the guide rod 312, and make the slider 303 remain stable after moving, so that the positioning plate 301 can limit the metal sheet to be cut. The plate is positioned firmly, and at the same time, the spring 308 is compressed by the limiting plate 310 and the limiting pad 311 to squeeze and fit the outer surface of the guide rod 312, and the rebound force of the spring 308 makes the limiting plate 310 and the limiting pad 311 to squeeze and limit the guide rod 312 more firmly, thereby making the positioning effect of the positioning plate 301 better, and then the metal plate to be cut is positioned, and then the electric lifting rod 10 is connected to the external power supply to make the electric lifting rod 10 work, and after the electric lifting rod 10 works, it drives the external threaded sleeve rod 13 and the laser cutting head 12 to move, and makes the laser cutting head 12 move to the surface of the metal plate to be cut, and then the motor 904 is connected to the external power supply to make the motor 904 work, and the motor 904 works After the operation, the threaded rod 902 is driven to rotate, and after the threaded rod 902 rotates, it can drive the internal threaded sleeve block 903 threadedly connected to it to slide inside the inner groove 901, and then the sliding of the internal threaded sleeve block 903 drives the limit block 906 to slide inside the limit groove 905, and after the limit block 906 slides, it can drive the electric lifting rod 10 and the laser cutting head 12 at its bottom to move, and at the same time, the motor 904 can be reversed so that the laser cutting head 12 can move back and forth, and during cutting, the splash shield 5 threadedly connected to the outer surface of the external threaded sleeve rod 13 can prevent waste chips from splashing during cutting, and after cutting, the waste chips can fall through the through groove 6 and be inserted into the collection box 7 inside the slot 8, and then the waste chips in the collection box 7 can be subsequently processed in a centralized manner.

[0033] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0034] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, and these changes and improvements fall within the scope of the utility model to be protected.

Claims

1. Laser cutting device for processing metal sheets, Features: The invention comprises a workbench (1), wherein a placement groove (2) penetrating from left to right is provided at the center of the top of the workbench (1), a positioning assembly (3) is provided between the front and rear surfaces of the placement groove (2), a through groove (6) is provided at the center of the lower surface of the placement groove (2), a slot (8) is provided at the center of the lower surface of the through groove (6), and the front surface of the slot (8) is communicated with the outside, a collection box (7) is inserted in the slot (8), a support frame (4) is fixedly connected at the center of the top of the workbench (1), a moving assembly (9) is provided at the top of the support frame (4), and an electric lift is fixedly connected at the bottom of the moving assembly (9). A lowering rod (10), the bottom end of the electric lifting rod (10) is fixedly connected to an externally threaded sleeve rod (13), the outer surface of the externally threaded sleeve rod (13) is provided with a splash cover (5), the upper part of the interior of the splash cover (5) is provided with a threaded hole (11) that penetrates up and down, and the threaded hole (11) is threadedly connected to the externally threaded sleeve rod (13), a laser cutting head (12) is fixedly installed inside the externally threaded sleeve rod (13), the bottom end of the laser cutting head (12) penetrates the bottom end of the externally threaded sleeve rod (13) and is located inside the splash cover (5), and the bottom end of the laser cutting head (12) and the bottom of the splash cover (5) are on the same horizontal plane.

2. The laser cutting device for processing metal sheets according to claim 1, Features: The moving assembly (9) comprises an inner groove (901), and the inner groove (901) is arranged above the inner part of the support frame (4), a vertically penetrating limiting groove (905) is arranged at the center of the lower surface of the inner groove (901), a motor (904) is fixedly installed on the inner rear surface of the inner groove (901), a threaded rod (902) is fixedly connected to the output end of the motor (904), and the threaded rod (902) is rotatably connected to the inner groove (901), The outer surface of the threaded rod (902) is threadedly connected with an internal threaded sleeve (903), and the internal threaded sleeve (903) is slidably connected to the inner groove (901). The bottom of the internal threaded sleeve (903) is fixedly connected to a limiting block (906), and the bottom of the limiting block (906) is fixedly connected to the top of the electric lifting rod (10). The limiting block (906) is located inside the limiting groove (905) and is slidably connected to the limiting groove (905).

3. The laser cutting device for processing metal sheets according to claim 2, Features: The motor (904) and the electric lifting rod (10) are both electrically connected to an external power source.

4. The laser cutting device for processing metal sheets according to claim 3, Features: The positioning assembly (3) includes two slide grooves (304), and the two slide grooves (304) are respectively opened at the center of the front and rear surfaces inside the placement groove (2), and the left and right sides of the slide groove (304) are slidably connected with sliders (303), and a positioning plate (301) is fixedly connected between the two left sliders (303) and between the two right sliders (303), and the two positioning plates (301) are opened on the opposite sides. A positioning groove (302) is opened at the center of the slider (303) and a left and right through-type guide hole (313) is opened, and a guide rod (312) is fixedly connected between the centers of the left and right sides of the slide groove (304), and the right end of the guide rod (312) passes through the guide hole (313) and is slidably connected to the guide hole (313), and the slide groove (304) is fixedly connected to the left and right sides of the slide groove (304). A through groove (305) is provided at the center of the upper surface of the part, and a through hole (309) is provided at the center of the upper surface inside the guide hole (313). A pull rod (306) is slidably connected inside the through hole (309). The top end of the pull rod (306) passes through the through groove (305) and is fixedly connected to a pull plate (307). The bottom end of the pull rod (306) is located inside the guide hole (313) and is fixedly connected to a limiting plate (310). The bottom of the limiting plate (310) is fixedly connected to a limiting pad (311). The outer surface of the pull rod (306) is located inside the through hole (309) and is sleeved with a spring (308). The top end of the spring (308) is fixedly connected to the inner wall of the through hole (309), and the bottom end of the spring (308) is fixedly connected to the outer surface of the pull rod (306).

5. The laser cutting device for processing metal sheets according to claim 4, Features: The limiting plate (310) and the limiting pad (311) are both arranged in an arc shape, and the limiting pad (311) is made of rubber material.

6. The laser cutting device for processing metal sheets according to claim 5, Features: The bottom of the pulling plate (307) fits with the top of the workbench (1), and the bottom of the limiting pad (311) fits with the outer surface of the guide rod (312).

7. The laser cutting device for processing metal sheets according to claim 6, Features: The front surface of the collection box (7) passes through the front surface of the workbench (1), and a handle (14) is fixedly connected at the center.

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