A laser cutting machine plate auxiliary feeding device

Abstract

The application discloses a kind of laser cutting machine plate auxiliary feeding device, belong to laser cutting technical field, including support group frame, plate traction device is provided on the upper end of support group frame, lifting device is fixedly connected with four corners on the upper end of support group frame, moving crossbeam is fixedly connected in the inside of lifting device, plate bearing device is provided on the side end of support group frame, motor moving wheel is provided with four corners on the bottom of support group frame;The beneficial effects of the application are that: the core structure of plate auxiliary feeding device is composed of support group frame, plate traction device, lifting device, moving crossbeam and plate bearing device, support group frame provides overall support, plate is accurately moved and positioned by traction device, lifting device realizes the vertical movement of plate, moving crossbeam is responsible for horizontal movement, and plate bearing device is used for firm support and moves plate.

Description

Technical Field

[0001] This invention belongs to the field of laser cutting machine technology, and particularly relates to an auxiliary feeding device for sheet metal in laser cutting machines. Background Technology

[0002] With the widespread application of laser cutting technology, especially in the metal processing industry, laser cutting machines have become the mainstream equipment for efficient and precise cutting. However, laser cutting machines face some challenges when handling large and heavy plates, especially in the process of precise positioning and loading of the plates.

[0003] Traditional laser cutting machine feeding methods typically rely on manual operation, which is not only inefficient and poses safety risks, but also limits the realization of large-scale and automated production. Therefore, it is particularly important to develop an efficient and stable sheet metal auxiliary feeding device. Some existing auxiliary feeding device designs, such as suction cup or clamp feeding systems, have improved feeding efficiency and safety to some extent, but still have some limitations. For example, suction cup systems may not be able to stably fix heavy sheets metal, while clamp systems may be difficult to adapt to sheets metal of different sizes and shapes due to their design complexity. Summary of the Invention

[0004] The purpose of this invention is to address the issue that when encountering heavy, thick boards, the usual method of loading the boards is using a gantry crane. When loading, the gantry crane typically clamps the boards on both sides. As a result, the boards deform due to their own weight when the gantry crane lifts them. Furthermore, there are safety hazards when lifting them suspended in the air in the workshop. In addition, these heavy boards require manual assistance when loading or unloading, which leads to excessive labor.

[0005] The present invention achieves the above-mentioned objective through the following technical solution: a plate auxiliary feeding device for a laser cutting machine, comprising a support frame, a plate traction device provided at the upper end of the support frame, lifting devices fixedly connected to the four corners of the upper end of the support frame, a movable crossbeam fixedly connected to the inner side of the lifting device, a plate bearing device provided at one side end of the support frame, and motor moving wheels provided at the four corners of the bottom of the support frame.

[0006] The sheet metal traction device includes a loading platform with lifting columns at each of the four corners of its bottom. A first lifting cylinder is fixedly connected to one end of each lifting column. Several traction rotating rods are evenly spaced along the inner side of the loading platform. A first rotating motor is fixedly connected to one corner of the bottom of the loading platform. A first rotating wheel is located at the output end of the first rotating motor, and a first rotating belt is mounted on the first rotating wheel. The traction rotating rods pass through one side of the loading platform and are movably connected to the first rotating belt. The traction device, including the traction rotating rods, the rotating motor, and the lifting system, achieves precise movement and positioning of the sheet metal. The loading platform is the core of the traction device, supporting and carrying the sheet metal. When the sheet metal is on the loading platform, the first rotating motor drives the first rotating wheel, which in turn drives the first rotating belt and the traction rotating rods to perform overall traction movement of the sheet metal. This ensures that the sheet metal will not deform due to its own weight during overall operation, preventing damage. During the traction operation, the first lifting cylinders are divided into two groups, one at the front and one at the back, to lift and lower the sheet metal on both sides, assisting in loading and reducing the pulling force exerted on the sheet metal by the lateral movement device.

[0007] Furthermore, the front end of the loading platform is provided with a front traction wheel rod, the rear end of the loading platform is provided with a rear traction wheel rod, and a second rotating motor is provided at the other side corner of the bottom of the loading platform. The output end of the second rotating motor is provided with a second rotating wheel. The second rotating wheel and the upper ends of the front traction wheel rod and the rear traction wheel rod are movably connected to a second rotating belt. The bottom rear end of the support frame is provided with a hook groove. The front traction wheel rod and the rear traction wheel rod are both higher than the upper surface of the loading platform. The second rotating motor drives the second rotating wheel to synchronously drive the second belt and the front traction wheel rod and the rear traction wheel rod to rotate synchronously. The front traction wheel rod is used for loading when it is matched with the worktable of the laser cutting machine. The rear traction wheel rod is used for loading and pulling the sheet metal. The sheet metal is lifted and lowered on the sheet metal bearing device. When it reaches the same height as the loading platform, the sheet metal is pulled onto the loading platform by the rear traction wheel rod to complete the loading of the sheet metal.

[0008] Furthermore, the lifting device includes a column, a third rotary motor is installed at the upper end of the column, a lead screw is installed at the output end of the third rotary motor, and a guide rod is installed on the inner side of the column adjacent to the lead screw. A lead screw bearing is installed through the guide rod and the lead screw. Through the combination of the motor-driven lead screw and guide rod, the precise vertical movement of the lifting column is realized. The use of the lead screw bearing helps to reduce friction loss during movement and ensures stability and reliability during the lifting process. When the sheet material is pulled up and down, this structure can provide more stable operation, preventing the sheet material from shaking or shifting during operation, and also preventing the sheet material from deforming during operation, reducing safety hazards and improving the quality of the sheet material.

[0009] Furthermore, the movable crossbeam includes two opposing fixed connecting arms, each with a rack at its upper end and a sliding boss at its upper end. A lateral moving device is fixedly and slidably connected between the two fixed connecting arms at their upper ends, and a plate is provided at the lower end of the lateral moving device. The fixed connecting arms are fixedly connected to the lead screw bearing by bolts. The horizontal movement of the movable crossbeam is controlled by the rack and the lateral moving device, while the structure of the sliding boss and the fixed connecting arms provides sufficient stability and support.

[0010] Furthermore, the lateral movement device includes a connecting plate, with a fourth rotary motor installed at both ends of the connecting plate. Gears are installed at the output ends of the fourth rotary motors. Several sliders are installed at both ends of the bottom of the connecting plate. An adjusting beam is installed at the lower end of the connecting plate, and plate locking devices are installed at both ends of the adjusting beam. The adjusting beam includes an adjusting plate with several adjusting holes evenly spaced. T-shaped connectors are installed at both ends of the adjusting plate. Precise control of the lateral movement device is achieved through the fourth rotary motor and gear system. The adjusting beam and plate locking devices can be adjusted according to the different sizes and widths of the plates to meet the feeding function of different specifications of plates. The purely mechanical manual locking mechanism is safer and more reliable, preventing clamping failures caused by electric structures, which could lead to plate deformation or detachment and unnecessary losses.

[0011] Furthermore, the plate locking device includes a fixed connector, a fixed limiting member at the lower end of the fixed connector, a movable connector at one side of the fixed limiting member, and a T-shaped limiting member at one side of the movable connector. The T-shaped limiting member and the fixed limiting member are fixedly connected by a locking rod. T-shaped lifting adjustment rods are provided on both sides of the lower end of the movable connector, fixed clamping plates are provided on both outer sides of the movable connector, and rolling rubber wheels are provided on both sides of the lower end of the T-shaped limiting member. An anti-slip rubber pad is provided on one side of the lower end of the T-shaped lifting adjustment rod. The plate is placed on the T-shaped lifting adjustment rod, and the T-shaped limiting member limits the vertical movement of the plate. The T-shaped lifting adjustment rod is fixedly connected to the movable connector. The movable connector can swing within a small range between the T-shaped limiting member and the fixed limiting member. This reduces the rigidity of the plate during clamping, providing a range of motion and reducing wear on the plate locking device. The anti-slip rubber pad and rolling rubber wheels reduce plate slippage and increase friction.

[0012] Furthermore, the board-bearing device includes a scissor-type lifting device. The upper end of the scissor-type lifting device is provided with a board-bearing platform. Several rollers are provided on both sides of the board-bearing platform. The four corners of the lower end of the scissor-type lifting device are provided with movable wheels. A hook is provided on one bottom side of the scissor-type lifting device. The scissor-type structure can effectively support and lift heavy boards. The board-bearing platform and rollers allow the board to move easily on the upper part of the device. The surface of the rollers is made of non-slip rubber to prevent the board from moving when stationary. Limiting blocks can be installed on both sides of the board-bearing platform for limiting the board.

[0013] Furthermore, the scissor-type lifting device includes a fixed frame, a scissor-type connecting assembly is provided at the upper end of the fixed frame, a second telescopic cylinder is fixedly connected to one side of the scissor-type connecting assembly, a connecting bearing is provided at the input end of the second telescopic cylinder, a push rod is provided on the connecting bearing, and the push rod is fixedly connected to both sides of the scissor-type connecting assembly.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] 1. The core structure of the sheet material auxiliary feeding device consists of a support frame, a sheet material traction device, a lifting device, a moving crossbeam, and a sheet material bearing device. The support frame provides overall support, the sheet material is precisely moved and positioned by the traction device, the lifting device realizes the vertical movement of the sheet material, the moving crossbeam is responsible for horizontal movement, and the sheet material bearing device is used to stably support and move the sheet material.

[0016] 2. Traction Device Design: The traction device includes a loading platform, traction rotating wheel, rotating motor, and lifting column. The rotating motor realizes the traction movement of the sheet metal through the rotating belt and traction rotating wheel, ensuring that the sheet metal will not be deformed or damaged due to gravity during operation, thus ensuring the stability and safety of operation. During the traction operation of the sheet metal, the first lifting cylinder is divided into two groups at the front and rear to lift and lower the sheet metal on both sides to assist in loading the sheet metal, reducing the pulling force of the lateral movement device on the sheet metal.

[0017] 3. Lifting Device Technology: The lifting device adopts a column structure, equipped with a third rotary motor and a lead screw system. Friction loss is reduced through lead screw bearings, ensuring the precision and stability of the lifting movement. This design effectively prevents vibration or displacement of the sheet metal during lifting, improving operational safety and production efficiency.

[0018] 4. Moving crossbeam and load-bearing device: The moving crossbeam consists of a fixed connecting arm, a rack and pinion, and a lateral moving device. Its horizontal movement is controlled by a fourth rotary motor and gears, ensuring precise movement of the device. The plate-bearing device adopts a scissor-type lifting device, which supports and moves the plate through rollers and limit fixing blocks, increasing the convenience and safety of operation. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the present invention;

[0020] Figure 2 This is a schematic diagram of the sheet metal traction device of the present invention;

[0021] Figure 3 This is a schematic diagram of the sheet metal traction device of the present invention from another angle;

[0022] Figure 4 This is a schematic diagram of the lifting device of the present invention;

[0023] Figure 5 This is a schematic diagram of the movable crossbeam of the present invention;

[0024] Figure 6 This is a schematic diagram of the lateral movement device of the present invention;

[0025] Figure 7 This is a schematic diagram of the adjusting beam of the present invention;

[0026] Figure 8 This is a schematic diagram of the sheet metal locking device of the present invention;

[0027] Figure 9 This is a schematic diagram of the plate bearing device of the present invention;

[0028] Figure 10 This is a schematic diagram of the scissor-type lifting device of the present invention;

[0029] In the diagram: 1-Support frame, 2-Sheet traction device, 3-Lifting device, 4-Moving crossbeam, 5-Sheet bearing device, 6-Motor moving wheel, 201-Loading platform, 202-Lifting column, 203-First lifting cylinder, 204-Traction rotating wheel rod, 205-First rotating motor, 206-First rotating wheel, 207-First rotating belt, 208-Front end traction wheel rod, 209-Rear end traction wheel rod, 210-Second rotating motor, 211-Second rotating wheel, 212-Second rotating belt, 213-Hook groove; 31-Column, 32-Third rotating motor, 33-Screw rod, 34-Guide rod, 35-Screw rod bearing, 41-Fixed connecting arm, 42-Rack, 43-Sliding boss, 44-Horizontal moving device, 45-Sheet material; 441-Connecting plate, 442-Fourth rotating motor, 443-Gear, 444-Slider, 445-Adjusting beam, 446-Sheet locking device; 4451-Adjusting plate, 4452-Adjusting hole, 4453-T-shaped connector; 4461-Fixed connector, 4462-Fixed limiter, 4463-Modible connector, 4464-T-shaped limiter, 4465-Locking rod, 4466-T-shaped lifting adjustment rod, 4467-Fixed clamping plate, 4468-Rolling rubber wheel, 4469-Anti-slip rubber pad; 51-Scissor-type lifting device, 52-Sheet placement platform, 53-Roller, 54-Moving wheel, 55-Hook; 511-Fixed frame, 512-Scissor-type connecting assembly, 513-Second telescopic cylinder, 514-Connecting bearing, 515-Top rod. Detailed Implementation

[0030] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0031] In the description of this invention, it should be understood that the terms "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0032] Combination Figures 1 to 10The laser cutting machine sheet material auxiliary feeding device shown includes a support frame 1, a sheet material traction device 2 is provided at the upper end of the support frame 1, lifting devices 3 are fixedly connected to the four corners of the upper end of the support frame 1, a movable crossbeam 4 is fixedly connected to the inner side of the lifting device 3, a sheet material bearing device 5 is provided at one side end of the support frame 1, and motor moving wheels 6 are provided at the four corners of the bottom of the support frame 1.

[0033] The sheet metal traction device 2 includes a loading platform 201. Lifting columns 202 are installed at each of the four corners of the bottom of the loading platform 201. A first lifting cylinder 203 is fixedly connected to one end of each lifting column 202. A plurality of traction rotating rods 204 are evenly and equidistantly arranged on the inner side of the loading platform 201. A first rotating motor 205 is fixedly connected to one corner of the bottom of the loading platform 201. A first rotating wheel 206 is installed at the output end of the first rotating motor 205. A first rotating belt 207 is installed on the first rotating wheel 206. The traction rotating rods 204 pass through one side of the loading platform 201 and are movably connected to the first rotating belt 207. The traction device includes a traction... The rotating wheel rod, rotating motor, and lifting system achieve precise movement and positioning of the sheet metal. The loading platform is located in the core part of the traction device and is used to support and carry the sheet metal. When the sheet metal is on the loading platform, the first rotating motor drives the first rotating wheel to drive the first rotating belt and the traction rotating wheel rod to perform the overall traction movement of the sheet metal. This ensures that the sheet metal will not deform due to its own weight during the overall operation, thus preventing damage to the sheet metal. During the traction operation of the sheet metal, the first lifting cylinder is divided into two groups at the front and rear to lift and lower the sheet metal on both sides to assist in loading the sheet metal and reduce the pulling force of the lateral movement device on the sheet metal.

[0034] The loading platform 201 has a front traction wheel 208 at its front end and a rear traction wheel 209 at its rear end. A second rotating motor 210 is located at the other side corner of the bottom of the loading platform 201. A second rotating wheel 211 is located at the output end of the second rotating motor 210. A second rotating belt 212 is movably connected to the upper ends of both the second rotating wheel 211 and the front and rear traction wheels 208 and 209. A hook groove 213 is located at the bottom rear side of the support frame 1. Both the front and rear traction wheels 208 and 209 are higher than the upper surface of the loading platform 201. The second rotating motor drives the second rotating wheel to synchronously drive the second belt, the front traction wheel, and the rear traction wheel to rotate synchronously. The front traction wheel is used for loading materials when paired with the worktable of the laser cutting machine. The rear traction wheel is used for loading and traction of the sheet metal. The sheet metal is lifted and lowered on the sheet metal support device. When it reaches the same height as the loading platform, the rear traction wheel pulls the sheet metal onto the loading platform, completing the loading of the sheet metal.

[0035] The lifting device 3 includes a column 31, a third rotary motor 32 is installed at the upper end of the column 31, a lead screw 33 is installed at the output end of the third rotary motor 32, a guide rod 34 is installed on the inner side of the column 31 adjacent to the lead screw 33, and a lead screw bearing 35 is installed through the guide rod 34 and the lead screw 33. Through the combination of the motor-driven lead screw and guide rod, the precise vertical movement of the lifting column is realized. The use of the lead screw bearing helps to reduce friction loss during movement and ensures stability and reliability during the lifting process. When the plate is pulled up and down, this structure can provide more stable operation, and will not cause the plate to shake or shift during operation. It also prevents the plate from deforming during operation, reduces safety hazards and improves the quality of the plate.

[0036] The movable crossbeam 4 includes two opposing fixed connecting arms 41. Each fixed connecting arm 41 has a rack 42 at its upper end and a sliding boss 43 at its upper end. A lateral moving device 44 is fixedly and slidably connected between the two fixed connecting arms 41 at their upper ends. A plate 45 is provided at the lower end of the lateral moving device 44. The fixed connecting arms 41 are fixedly connected to the lead screw bearing 35 by bolts. The horizontal movement of the movable crossbeam is controlled by the rack and the lateral moving device, while the structure of the sliding boss and the fixed connecting arms provides sufficient stability and support.

[0037] The lateral moving device 44 includes a connecting plate 441, with a fourth rotary motor 442 installed on both sides of the connecting plate 441. Gears 443 are installed at the output ends of the fourth rotary motors 442. Several sliders 444 are installed at both ends of the bottom of the connecting plate 441. An adjusting beam 445 is installed at the lower end of the connecting plate 441, with plate locking devices 446 installed on both sides of the adjusting beam 445. The adjusting beam 445 includes an adjusting plate 4451, with several adjusting holes 4452 evenly spaced on the adjusting plate 4451. T-shaped connectors 4453 are installed on both sides of the adjusting plate 4451. Precise control of the lateral moving device is achieved through the fourth rotary motor and gear system. The adjusting beam and plate locking devices can be adjusted according to the different sizes and widths of the plates to meet the feeding function of plates of different specifications. The purely mechanical manual locking method is safer and more reliable, preventing clamping failures caused by electric structures, which could lead to plate deformation or detachment and unnecessary losses.

[0038] The plate locking device 446 includes a fixed connector 4461, a fixed limiting member 4462 at the lower end of the fixed connector 4461, a movable connector 4463 at one side of the fixed limiting member 4462, and a T-shaped limiting member 4464 at one side of the movable connector 4463. The T-shaped limiting member 4464 and the fixed limiting member 4462 are fixedly connected by a locking rod 4465. T-shaped lifting adjustment rods 4466 are provided on both sides of the lower end of the movable connector 4463. Fixed clamping plates 4467 are provided on both outer sides of the movable connector 4463. T-shaped lifting adjustment rods 4466 are provided on both sides of the lower end of the T-shaped limiting member 4464. It has rolling rubber wheels 4468 and a non-slip rubber pad 4469 on one side of the lower end of the T-shaped lifting adjustment rod 4466. The plate is placed on the T-shaped lifting adjustment rod and the plate is limited in the vertical direction by the T-shaped limiting member. The T-shaped lifting adjustment rod is fixedly connected to the movable connecting member. The movable connecting member can swing within a small range between the T-shaped limiting member and the fixed limiting member. This can reduce the plate being too rigid in clamping and give the plate a range of movement. It can reduce the wear of the plate locking device. The anti-slip rubber pad and rolling rubber wheels can reduce the slippage of the plate and increase the friction.

[0039] The board support device 5 includes a scissor-type lifting device 51. The upper end of the scissor-type lifting device 51 is provided with a board placement platform 52. Several rollers 53 are provided on both sides of the board placement platform 52. The four corners of the lower end of the scissor-type lifting device 51 are provided with movable wheels 54. A hook 55 is provided on one side of the bottom end of the scissor-type lifting device 51. The scissor structure can effectively support and lift heavy boards. The board placement platform and rollers allow the boards to move easily on the upper part of the device. The surface of the rollers is made of non-slip rubber material to prevent the boards from moving when stationary. Limiting blocks can be installed on both sides of the board placement platform for limiting the boards.

[0040] The scissor-type lifting device 51 includes a fixed frame 511, a scissor-type connecting assembly 512 is provided on the upper end of the fixed frame 511, a second telescopic cylinder 513 is fixedly connected to one side end of the scissor-type connecting assembly 512, a connecting bearing 514 is provided at the input end of the second telescopic cylinder 513, a push rod 515 is provided on the connecting bearing 514, and the push rod 515 is fixedly connected to both sides of the scissor-type connecting assembly 512.

[0041] During operation, the sheet metal carrying device 5 is used for daily sheet metal carrying in the workshop. When sheet metal cutting is required, the device is moved to the vicinity of the sheet metal carrying device 5 by the motor-driven moving wheels 6. The sheet metal carrying device 5 is then moved to the vicinity of the laser cutting machine by the interaction between the hook groove 213 and the hook 55. The support frame 1 provides support for the overall structure. A sheet metal traction device 2 is set at the upper end, which includes a loading platform 201, a lifting column 202 and a first lifting cylinder 203 at the bottom. Multiple traction rotating wheels 204 are installed inside the loading platform, and a first rotating motor 205 drives the first... The rotating wheel 206 and the first rotating belt 207 drive the rotating wheel rod 204 to ensure stable traction movement of the plate during the feeding process, preventing deformation or damage to the plate due to its own weight. The lifting device 3 includes a column 31, a third rotating motor 32, and a lead screw 33. The lead screw cooperates with the guide rod 34 and achieves vertical lifting through the lead screw bearing 35, ensuring precise height adjustment and stability of the plate. The moving crossbeam 4 has two opposing fixed connecting arms 41, with a rack 42 and a sliding boss 43 at the upper end, connected in the middle by a transverse moving device 44. This allows the moving crossbeam to move precisely in the horizontal direction, supporting the stability and control of the overall structure. The front and rear ends of the loading platform 201 are respectively equipped with a front traction wheel 208 and a rear traction wheel 209, as well as a second rotating motor 210, a second rotating wheel 211, and a second rotating belt 212. These devices are used to precisely pull the sheet metal onto the loading platform after it has been lifted and lowered on the sheet metal carrying device 5, such as the scissor-type lifting device 51. At the same time, the front traction wheel 208 can also assist in loading the sheet metal to the laser cutting machine for cutting by driving the second rotating motor 210. The platform and the sheet metal locking device 446 include components such as a fixed connector 4461, a fixed limiting component 4462, a movable connector 4463, and a T-shaped limiting component 4464. These components work together to ensure the stability and safety of the sheet metal during clamping, reducing deformation and slippage. The scissor-type lifting device 51 effectively supports and lifts heavy sheet metal through components such as a fixed frame 511, a scissor-type connecting component 512, and a second telescopic cylinder 513. The sheet metal placement platform 52 and the rollers 53 allow the sheet metal to move easily, while the anti-slip rubber rollers prevent the sheet metal from sliding when stationary.

[0042] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0043] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A kind of laser cutting machine plate auxiliary feeding device, including support group frame (1), it is characterized by: The support group frame (1) is provided with a plate traction device (2) at the upper end, the upper end of the support group frame (1) is fixedly connected with a lifting device (3) at four corners, the inner side of the lifting device (3) is fixedly connected with a moving cross beam (4), one side of the support group frame (1) is provided with a plate bearing device (5), and the bottom of the support group frame (1) is provided with a motor moving wheel (6) at four corners. The plate traction device (2) comprises a loading platform (201), the bottom of the loading platform (201) is provided with a lifting column (202) at four corners, one end of the lifting column (202) is fixedly connected with a first lifting cylinder (203), a plurality of traction rotating wheel rods (204) are uniformly and equidistantly arranged in the inner side of the loading platform (201), one corner of the bottom of the loading platform (201) is fixedly connected with a first rotating motor (205), the output end of the first rotating motor (205) is provided with a first rotating wheel (206), the first rotating wheel (206) is provided with a first rotating belt (207), the traction rotating wheel rod (204) penetrates through one side of the loading platform (201) and is movably connected with the first rotating belt (207); The front end of the loading platform (201) is provided with a front end traction wheel rod (208), the rear end of the loading platform (201) is provided with a rear end traction wheel rod (209), the other corner of the bottom of the loading platform (201) is provided with a second rotating motor (210), the output end of the second rotating motor (210) is provided with a second rotating wheel (211), the second rotating wheel (211) is movably connected with the second rotating belt (212) on the upper end of the front end traction wheel rod (208) and the rear end traction wheel rod (209), the rear side bottom end of the support group frame (1) is provided with a hook groove (213), and the front end traction wheel rod (208) and the rear end traction wheel rod (209) are higher than the upper side surface of the loading platform (201); The lifting device (3) comprises a stand column (31), the upper end of the stand column (31) is provided with a third rotating motor (32), the output end of the third rotating motor (32) is provided with a lead screw (33), the inner side of the stand column (31) is provided with a guide round rod (34) adjacent to the lead screw (33), and the guide round rod (34) and the lead screw (33) are provided with a lead screw bearing (35) penetratingly. The moving cross beam (4) comprises two fixed connection arms (41) in an opposite manner, the upper end of the fixed connection arm (41) is provided with a rack (42), the upper end of the fixed connection arm (41) is provided with a sliding boss (43), the upper end of the two fixed connection arms (41) is fixedly and slidably connected with a horizontal moving device (44), the horizontal moving device (44) is provided with a plate (45) at the lower end, and the fixed connection arm (41) and the lead screw bearing (35) are fixedly connected through bolts.

2. The auxiliary feeding device for plate material of a laser cutting machine according to claim 1, characterized in that: The transverse moving device (44) comprises a connecting plate (441), fourth rotating motors (442) are arranged at both ends of the connecting plate (441), gears (443) are arranged at the output ends of the fourth rotating motors (442), a plurality of sliding blocks (444) are arranged at the bottom of the connecting plate (441), an adjusting beam (445) is arranged at the lower end of the connecting plate (441), and plate locking devices (446) are arranged at the upper two side ends of the adjusting beam (445); the adjusting beam (445) comprises an adjusting plate (4451), a plurality of adjusting holes (4452) are uniformly and equidistantly arranged on the adjusting plate (4451), and T-shaped connecting pieces (4453) are arranged at the two side ends of the adjusting plate (4451).

3. The auxiliary feeding device for plate material of a laser cutting machine according to claim 2, characterized in that: The plate locking device (446) comprises a fixed connecting piece (4461), a fixed limiting piece (4462) is arranged at the lower end of the fixed connecting piece (4461), a movable connecting piece (4463) is arranged at one side end of the fixed limiting piece (4462), a T-shaped limiting piece (4464) is arranged at one side end of the movable connecting piece (4463), the T-shaped limiting piece (4464) and the fixed limiting piece (4462) are fixedly connected through a locking rod (4465), T-shaped lifting adjusting rods (4466) are arranged at the lower ends of the two sides of the movable connecting piece (4463), fixed clamping plates (4467) are arranged at the outer two sides of the movable connecting piece (4463), rolling rubber wheels (4468) are arranged at the lower ends of the two sides of the T-shaped limiting piece (4464), and antiskid rubber pads (4469) are arranged on one side surface of the lower end of the T-shaped lifting adjusting rod (4466).

4. The auxiliary feeding device for plate material of a laser cutting machine according to claim 3, characterized in that: The plate bearing device (5) comprises a scissor type lifting device (51), a plate placing table (52) is arranged at the upper end of the scissor type lifting device (51), a plurality of rollers (53) are arranged at the two sides of the plate placing table (52), moving wheels (54) are arranged at the lower ends of the four corners of the scissor type lifting device (51), a hook (55) is arranged at the bottom of one side of the scissor type lifting device (51), and the hook is connected in assembly with the hook groove (213).

5. The auxiliary feeding device for plate material of a laser cutting machine according to claim 4, characterized in that: The scissor type lifting device (51) comprises a fixed group frame (511), a scissor type connecting assembly (512) is arranged at the upper end of the fixed group frame (511), a second telescopic air cylinder (513) is fixedly connected to one side end of the scissor type connecting assembly (512), a connecting bearing (514) is arranged at the output end of the second telescopic air cylinder (513), a jacking rod (515) is arranged on the connecting bearing (514), and the jacking rod (515) is fixedly connected to the two side ends of the scissor type connecting assembly (512).

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