A sheet material rapid feeding processing device

Abstract

This utility model discloses a rapid sheet metal loading and processing device, relating to the field of machining and automation equipment technology. It includes a base frame, a lifting assembly, a horizontal sliding module, and an adsorption module. The top of the base frame has two parallel horizontal guide rails arranged along its length, with both ends of the horizontal guide rails connected to the base frame via fixed brackets. The lifting assembly includes a vertically arranged drive cylinder, the top end of which is fixedly connected to the bottom of the horizontal sliding module via a flange. The horizontal sliding module includes a sliding base plate. This utility model provides a rapid sheet metal loading and processing device. Through the design of the clamping arms, the clamping arms can expand or retract horizontally under the drive of the sliding base plate, thereby adjusting the spacing between the adsorption modules. It is suitable for handling sheet metal of different sizes and thicknesses, and can also achieve rapid switching between multiple sheet metal specifications.

Description

Technical Field

[0001] This utility model relates to the field of mechanical processing and automation equipment technology, specifically to a rapid sheet metal feeding and processing device. Background Technology

[0002] With the continuous improvement of industrial automation, sheet metal processing equipment is increasingly widely used in the automotive, electronics, and home appliance industries. Rapid feeding, as a crucial step in the processing flow, has a significant impact on production efficiency and the level of equipment intelligence. Currently, sheet metal feeding devices on the market exhibit certain limitations in practical applications, such as limited positioning accuracy, insufficient automation, and complex operation. These issues, to some extent, restrict further improvements in production efficiency.

[0003] A search revealed patent document CN114803494B, which discloses a fast and stable aluminum sheet feeding device, with an authorization announcement date of September 22, 2023. This device includes a support frame, a feeding rack, a sliding assembly, a conveying assembly, a lifting assembly, and a feeding rack. The sliding assembly and the conveying assembly work together to automatically transport the aluminum sheets, and a suction cup completes the feeding action. This solution enables automatic aluminum sheet feeding, thereby improving production efficiency. However, the device's structural design is relatively complex, resulting in high maintenance costs. Furthermore, it is primarily suitable for lithium battery aluminum shell production, and its adaptability is insufficient when dealing with sheets of different sizes or thicknesses, limiting its support for the rapid switching needs of multiple sheet specifications.

[0004] In addition, patent document CN111169995B discloses a novel rapid keyboard adhesive loading device, with an authorization announcement date of February 25, 2025. This device employs a robotic arm structure composed of a lateral and longitudinal moving part, combined with a storage bin and a suction gripper to achieve high-precision loading. It controls the movement of the suction gripper through proximity sensors, improving the automation level and placement accuracy of the loading process. However, this device is mainly used for loading small adhesive parts. When applied to larger metal sheets, its load-bearing capacity and stability are limited, making it difficult to meet the needs of rapid loading and processing of heavy-duty sheets.

[0005] In summary, while some existing technologies address rapid material feeding, there is still room for improvement in practical applications. For example, some devices have complex structural designs and insufficient versatility; others have limitations in load-bearing capacity or adaptability, making it difficult to fully meet the demands of modern sheet metal processing for efficient, intelligent, and multi-specification compatible rapid material feeding. Therefore, developing a processing device that is simple in structure, highly adaptable, stable in operation, and capable of rapid material feeding of multiple sheet metal specifications has become an urgent problem to be solved. Utility Model Content

[0006] This utility model provides a rapid sheet metal feeding and processing device, aiming to solve the problems of complex structure, insufficient adaptability, and limited load-bearing capacity of existing sheet metal feeding equipment. The specific solution is as follows:

[0007] A rapid sheet metal feeding and processing device includes a base frame, a lifting assembly, a horizontal sliding module, and an adsorption module. The top of the base frame has two parallel horizontal guide rails arranged along its length, with both ends of the horizontal guide rails connected to the base frame via fixed brackets. The lifting assembly includes a vertically arranged drive cylinder, the top end of which is fixedly connected to the bottom of the horizontal sliding module via a flange. The horizontal sliding module includes a sliding base plate, the bottom of which is slidably connected to the horizontal guide rails via a slider. Two sets of adjustable clamping arms are symmetrically mounted on both sides of the sliding base plate, each set of clamping arms having an adsorption module at its end. The adsorption module includes multiple vacuum nozzles, which are connected to an external negative pressure system via flexible hoses for adsorbing the surface of the sheet metal. The two sets of clamping arms can be extended or retracted horizontally under the action of the sliding base plate to adjust the spacing between the adsorption modules.

[0008] In a preferred embodiment of the rapid feeding and processing device for sheet metal described in this utility model, a positioning column is vertically installed in the middle of the sliding base plate. The top of the positioning column is connected to a transmission gear through a bearing. The transmission gear is located between two sets of clamping arms and meshes with a rack on the clamping arms. The rotation of the transmission gear is used to drive the two sets of clamping arms to move along the length direction of the sliding base plate. The central shaft of the transmission gear is connected to the output shaft of a stepper motor through a coupling. The stepper motor is installed on the top of the sliding base plate.

[0009] In a preferred embodiment of the rapid feeding and processing device for sheet metal described in this utility model, guide cylinders are symmetrically installed on both sides of the sliding base plate. A piston rod is provided inside the guide cylinder. The top of the piston rod is connected to the inner wall of the guide cylinder through an elastic element, which is a compression spring. One end of the compression spring is fixedly connected to the top inner wall of the guide cylinder, and the other end is fixedly connected to the top of the piston rod. The bottom end of the piston rod passes through the opening of the guide cylinder and is connected to an auxiliary suction nozzle. The auxiliary suction nozzle is connected to an external negative pressure system through a pipe.

[0010] As a preferred embodiment of the rapid feeding and processing device for sheet metal described in this utility model, the inner side of the clamping arm is provided with a plurality of air blowing nozzles, the number of air blowing nozzles corresponding one-to-one with the vacuum suction nozzles, and the air outlet of the air blowing nozzles facing downwards from the vacuum suction nozzles; the air blowing nozzles are connected to the top of the guide cylinder through a hose, and are used to remove surface impurities during the sheet metal adsorption process.

[0011] As a preferred embodiment of the rapid feeding and processing device for sheet metal described in this utility model, a diversion valve is installed on the top of the sliding base plate. The air inlet of the diversion valve is connected to an external negative pressure system through a hose, and the air outlet of the diversion valve is connected to an auxiliary suction nozzle and a blowing nozzle through hoses respectively. A sealing plug is provided inside the diversion valve. One end of the sealing plug is slidably connected to the inner wall of the diversion valve, and the other end is connected to a limit buckle through a connecting rod. The limit buckle is located on the outside of the piston rod.

[0012] In a preferred embodiment of the sheet metal rapid feeding processing device of this utility model, a return spring is sleeved on the outer side of the sealing plug. One end of the return spring contacts the inner wall of the diversion valve, and the other end contacts the outer side of the limit buckle. When the piston rod moves upward, the limit buckle disengages from the piston rod, and the return spring pushes the sealing plug to reset, thereby closing the air outlet of the diversion valve.

[0013] In a preferred embodiment of the sheet metal rapid feeding processing device of this utility model, a rubber gasket is attached to the outer side of the piston rod, and the rubber gasket is arranged along the length direction of the piston rod to reduce the friction between the piston rod and the inner wall of the guide cylinder.

[0014] In a preferred embodiment of the sheet metal rapid feeding and processing device of this utility model, an adjusting rod is rotatably mounted on the top of the sliding base plate. One end of the adjusting rod is in contact with the top surface of the sliding base plate, and the other end is hinged to the end of the clamping arm to provide support when the clamping arm is extended or retracted.

[0015] In a preferred embodiment of the sheet metal rapid feeding and processing device of this utility model, a driven gear is installed on the top of the positioning column, the driven gear and the transmission gear are arranged concentrically and coaxially, and the driven gears are connected by a synchronous belt; a servo motor for driving the synchronous belt transmission is provided above the sliding base plate.

[0016] In a preferred embodiment of the sheet metal rapid feeding and processing device of this utility model, the top of the clamping arm is provided with a sliding groove along its length direction, and the sliding groove cooperates with the slider on the sliding base plate to realize the smooth movement of the clamping arm.

[0017] Compared with the prior art, the present invention has at least the following beneficial effects:

[0018] This invention features a clamping arm design that allows the clamping arm to expand or retract horizontally under the influence of a sliding substrate, thereby adjusting the spacing between the adsorption modules. This design is suitable for handling sheet materials of different sizes and thicknesses and enables rapid switching between sheet materials of various specifications.

[0019] This invention utilizes a transmission gear design. The transmission gear can not only drive the clamping arm it meshes with to move in opposite directions, but also limit the clamping arm when it is subjected to external impact or inertia, thus preventing the clamping arm from slipping and causing deviation in the adsorption position.

[0020] This invention utilizes an auxiliary suction nozzle design. The auxiliary suction nozzle can pre-position the surface of the board material before adsorption using the elastic force of the elastic element, and improve the stability of the board material during adsorption. It exhibits a stronger gripping ability, especially when handling heavier boards.

[0021] This utility model uses a limiting buckle design. During the adsorption process of the sheet material, the limiting buckle is in close contact with the piston rod to prevent the auxiliary suction nozzle from moving downward due to external force and causing the sheet material to fall off. When the sheet material is transported to the target area, the limiting buckle disengages from the piston rod, and the auxiliary suction nozzle automatically moves downward under the action of the elastic element, realizing the automatic unloading of the sheet material.

[0022] This invention utilizes an adjustment rod design, with one end of the rod fitting against the top surface of the sliding substrate and the other end hinged to the end of the clamping arm. This not only provides additional support for the clamping arm but also reduces wear between the clamping arm and the sliding substrate, ensuring that the adsorption module is always on the same horizontal plane, thereby improving the stability of the adsorption process. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0024] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0025] Figure 2 This is a partial enlarged view of the horizontal sliding module in this utility model.

[0026] Figure 3 This is a schematic diagram of the adsorption module and auxiliary suction nozzle in this utility model.

[0027] Figure 4 This is a schematic diagram of the internal structure of the diversion valve in this utility model.

[0028] Figure 5 This is a top view of the clamping arm in this utility model.

[0029] The attached figures are labeled as follows:

[0030] 1. Base frame; 2. Horizontal guide rail; 3. Drive cylinder; 4. Flange; 5. Sliding base plate; 6. Clamping arm; 7. Vacuum nozzle; 8. Positioning column; 9. Transmission gear; 10. Stepper motor; 11. Guide cylinder; 12. Piston rod; 13. Compression spring; 14. Auxiliary nozzle; 15. Air blowing nozzle; 16. Diverter valve; 17. Sealing plug; 18. Return spring; 19. Limit buckle; 20. Rubber gasket; 21. Adjusting rod; 22. Driven gear; 23. Synchronous belt; 24. Slide groove; 25. Servo motor. Detailed Implementation

[0031] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0032] This utility model provides a rapid sheet metal feeding and processing device, the overall structure of which is as follows: Figure 1 As shown, the base frame 1 serves as the fundamental support component of the entire device. Two parallel horizontal guide rails 2 are arranged along the length of the top of the frame. The horizontal guide rails 2 are connected to the base frame 1 via fixed brackets to ensure stability. The lifting assembly includes a drive cylinder 3. The top of the telescopic shaft of the drive cylinder 3 is fixedly connected to the bottom of the transverse sliding module via a flange 4, thereby achieving lifting control of the transverse sliding module. The core component of the transverse sliding module is the sliding base plate 5. The bottom of the sliding base plate 5 is slidably connected to the horizontal guide rails 2 via a slider, allowing it to move smoothly in the horizontal direction. Two sets of clamping arms 6 are symmetrically installed on both sides of the sliding base plate 5. Each set of clamping arms 6 has an adsorption module at its end. The adsorption module includes multiple vacuum nozzles 7, which are connected to an external negative pressure system via hoses for adsorbing the surface of the sheet material. The two sets of clamping arms 6 can be extended or retracted horizontally under the drive of the sliding base plate 5 to adjust the spacing between the adsorption modules.

[0033] A positioning column 8 is vertically mounted in the center of the sliding base plate 5. The top of the positioning column 8 is connected to a transmission gear 9 via a bearing. The transmission gear 9 is located between two sets of clamping arms 6 and meshes with a rack on the clamping arms 6. The rotation of the transmission gear 9 drives the two sets of clamping arms 6 to move along the length of the sliding base plate 5. The central shaft of the transmission gear 9 is connected to the output shaft of a stepper motor 10 via a coupling. The stepper motor 10 is mounted on the top of the sliding base plate 5. Through precise control of the stepper motor 10, the clamping arms 6 can be synchronously extended or retracted. Figure 2 As shown, the stepper motor 10 drives the transmission gear 9 to rotate via a coupling. The transmission gear 9 meshes with the rack on the clamping arm 6, thereby converting the rotational motion into the linear motion of the clamping arm 6. This design not only enables precise adjustment of the clamping arm 6, but also limits its movement when subjected to external impact, preventing deviations in the adsorption position due to slippage.

[0034] Guide cylinders 11 are symmetrically mounted on both sides of the sliding base plate 5. A piston rod 12 is located inside each guide cylinder 11. The top of the piston rod 12 is connected to the inner wall of the guide cylinder 11 via a compression spring 13. One end of the compression spring 13 is fixedly connected to the top inner wall of the guide cylinder 11, and the other end is fixedly connected to the top of the piston rod 12. The bottom end of the piston rod 12 passes through the opening of the guide cylinder 11 and connects to an auxiliary suction nozzle 14. The auxiliary suction nozzle 14 is connected to an external negative pressure system via a pipe. Figure 3 As shown, when the sheet material is adsorbed, the auxiliary suction nozzle 14 pre-positions the sheet material surface using the elastic force of the compression spring 13, and improves the stability of the sheet material during adsorption. Furthermore, a rubber gasket 20 is attached to the outer side of the piston rod 12, arranged along the length of the piston rod 12, to reduce friction between the piston rod 12 and the inner wall of the guide cylinder 11, thereby improving the service life of the piston rod 12.

[0035] The inner side of the clamping arm 6 is provided with multiple air blowing nozzles 15, the number of which corresponds one-to-one with the vacuum nozzle 7. The air outlet of the air blowing nozzle 15 faces downwards from the vacuum nozzle 7. The air blowing nozzle 15 is connected to the top of the guide cylinder 11 through a flexible hose, and is used to remove surface impurities during the adsorption process of the sheet material. Figure 5 As shown, a groove 24 is formed along the length of the top of the clamping arm 6. The groove 24 cooperates with the slider on the sliding base plate 5 to achieve smooth movement of the clamping arm 6. An adjusting rod 21 is rotatably mounted on the top of the sliding base plate 5. One end of the adjusting rod 21 is in contact with the top surface of the sliding base plate 5, and the other end is hinged to the end of the clamping arm 6 to provide support when the clamping arm 6 is extended or retracted. The design of the adjusting rod 21 not only provides additional support for the clamping arm 6, but also reduces wear between the clamping arm 6 and the sliding base plate 5, ensuring that the adsorption module is always on the same horizontal plane.

[0036] A diversion valve 16 is mounted on the top of the sliding base plate 5. The air inlet of the diversion valve 16 is connected to an external negative pressure system via a hose, and the air outlet of the diversion valve 16 is connected to an auxiliary suction nozzle 14 and a blowing nozzle 15 via hoses, respectively. Figure 4As shown, the diversion valve 16 has a sealing plug 17 inside. One end of the sealing plug 17 is slidably connected to the inner wall of the diversion valve 16, and the other end is connected to the limiting buckle 19 via a connecting rod. The limiting buckle 19 is located outside the piston rod 12. A return spring 18 is sleeved on the outside of the sealing plug 17. One end of the return spring 18 contacts the inner wall of the diversion valve 16, and the other end contacts the outside of the limiting buckle 19. When the piston rod 12 moves upward, the limiting buckle 19 disengages from the piston rod 12, and the return spring 18 pushes the sealing plug 17 to reset, thereby closing the air outlet of the diversion valve 16. This design ensures that the auxiliary suction nozzle 14 and the blowing nozzle 15 can automatically open or close as needed during the adsorption process of the sheet material, thereby improving the efficiency and stability of the adsorption process.

[0037] A driven gear 22 is mounted on the top of the positioning column 8. The driven gear 22 and the transmission gear 9 are arranged concentrically and coaxially, and the driven gears 22 are connected by a synchronous belt 23. A servo motor 25 is provided above the sliding base plate 5 to drive the synchronous belt 23. The servo motor 25 drives the driven gear 22 to rotate through the synchronous belt 23, thereby further enhancing the driving force of the transmission gear 9 and ensuring that the opening or closing action of the clamping arm 6 is smoother and more precise. This design not only improves the overall performance of the device, but also demonstrates stronger load-bearing capacity when handling larger and heavier plates.

[0038] In practical applications, the operation process of this rapid sheet metal loading and processing device is as follows: First, based on the size and thickness of the sheet metal to be transported, the stepper motor 10 drives the transmission gear 9 to rotate, causing the clamping arm 6 to expand or retract along the length of the sliding substrate 5, thereby adjusting the spacing between the adsorption modules. Then, the telescopic shaft of the drive cylinder 3 lowers the transverse sliding module to the position of the sheet metal. The auxiliary suction nozzle 14, under the action of the compression spring 13, first contacts the surface of the sheet metal for pre-positioning. Next, the external negative pressure system is activated, and the vacuum suction nozzle 7 and the auxiliary suction nozzle 14 work simultaneously to firmly adsorb the sheet metal. During adsorption, the air nozzle 15 removes impurities from the surface of the sheet metal through the airflow of the guide cylinder 11, ensuring the adsorption effect. After adsorption is completed, the drive cylinder 3 raises the transverse sliding module to the target height, the sliding substrate 5 moves along the horizontal guide rail 2 to the designated position, then the piston rod 12 moves upward, the limit latch 19 disengages from the piston rod 12, and the auxiliary suction nozzle 14 automatically moves downward under the action of the compression spring 13, completing the unloading of the sheet metal. The entire process is efficient and stable, suitable for the rapid switching and handling needs of various sheet materials.

[0039] To enable those skilled in the art to fully understand and implement this utility model, the following supplementary explanation of the specific implementation principle of this utility model is provided in conjunction with a specific application scenario.

[0040] In practical applications, taking a stamping production line in the automotive manufacturing industry as an example, this production line needs to frequently switch between different specifications of metal sheets for processing. The operator first adjusts the spacing between the clamping arms 6 according to the size and thickness of the sheet to be handled. A stepper motor 10 drives the transmission gear 9 to rotate, which meshes with the rack on the clamping arm 6, converting the rotational motion into linear motion of the clamping arm 6. This allows the two sets of clamping arms 6 to extend or retract along the length of the sliding substrate 5. This adjustment process ensures that the spacing between the adsorption modules matches the actual size of the sheet, meeting the need for rapid switching between multiple sheet specifications.

[0041] Subsequently, the drive cylinder 3 is activated, and its telescopic shaft drives the lateral sliding module to descend to the position of the sheet material. During this process, the auxiliary suction nozzle 14, under the action of the compression spring 13, first contacts the surface of the sheet material for pre-positioning. Because a rubber gasket 20 is attached to the outside of the piston rod 12, the rubber gasket 20 effectively reduces the friction between the piston rod 12 and the inner wall of the guide cylinder 11, thereby improving the service life of the piston rod 12 and ensuring smoother movement of the auxiliary suction nozzle 14. The auxiliary suction nozzle 14 applies a certain pressure to the surface of the sheet material through the elastic force of the compression spring 13, preventing displacement of the sheet material in the initial stage of adsorption.

[0042] Once the auxiliary suction nozzle 14 completes its pre-positioning, the external negative pressure system activates, and the vacuum suction nozzle 7 and the auxiliary suction nozzle 14 operate simultaneously to firmly adsorb the sheet material. At this time, the sealing plug 17 inside the diversion valve 16 remains open under the action of the limiting latch 19, ensuring that both the auxiliary suction nozzle 14 and the air blowing nozzle 15 are operational. The air blowing nozzle 15 is connected to the guide cylinder 11 via a hose, using airflow to remove impurities from the sheet material surface, ensuring that the adsorption effect is not affected by contamination. This design not only improves the stability of the adsorption process but also significantly improves the cleanliness of the sheet material surface.

[0043] After adsorption is complete, the drive cylinder 3 lifts the horizontal sliding module to the target height, and the sliding base plate 5 moves smoothly along the horizontal guide rail 2 to the designated position. During this process, the adjusting rod 21 installed on the top of the sliding base plate 5 provides additional support for the clamping arm 6, reducing wear between the clamping arm 6 and the sliding base plate 5, while ensuring that the adsorption module is always on the same horizontal plane. In addition, the driven gear 22 on the top of the positioning column 8 is connected to the servo motor 25 through the synchronous belt 23. The servo motor 25 further enhances the driving force of the transmission gear 9, ensuring that the opening or closing action of the clamping arm 6 is more stable and precise, especially exhibiting stronger load-bearing capacity when handling larger and heavier plates.

[0044] When the sheet metal is conveyed to the target area, the piston rod 12 moves upward, the limit latch 19 disengages from the piston rod 12, the return spring 18 pushes the sealing plug 17 to reset, closing the air outlet of the diversion valve 16 and stopping the operation of the auxiliary suction nozzle 14 and the blowing nozzle 15. Simultaneously, the auxiliary suction nozzle 14 automatically moves downward under the action of the compression spring 13, completing the unloading of the sheet metal. The entire process is efficient and stable, suitable for the rapid switching and handling needs of various sheet metal specifications.

[0045] As can be seen from the above steps, this utility model achieves high efficiency and stability in the sheet metal feeding process through the adjustable design of the clamping arm 6, the pre-positioning function of the auxiliary suction nozzle 14, and the automatic opening and closing mechanism of the diversion valve 16. At the same time, the device has a simple structural design, low maintenance costs, and strong adaptability, meeting the modern sheet metal processing requirements for efficient, intelligent, and multi-specification compatible rapid feeding.

[0046] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A rapid sheet metal feeding and processing device, comprising a base frame (1), a lifting assembly, a transverse sliding module, and an adsorption module, characterized in that: The top of the base frame (1) is provided with two parallel horizontal guide rails (2) along its length. The two ends of the horizontal guide rails (2) are connected to the base frame (1) through fixed brackets. The lifting assembly includes a vertically arranged drive cylinder (3). The top end of the telescopic shaft of the drive cylinder (3) is fixedly connected to the bottom of the horizontal sliding module through a flange (4). The horizontal sliding module includes a sliding base plate (5). The bottom of the sliding base plate (5) is slidably connected to the horizontal guide rails (2) through a slider. Two sets of clamping arms (6) are symmetrically installed on both sides of the sliding base plate (5). Each set of clamping arms (6) has an adsorption module at its end. The adsorption module includes multiple vacuum nozzles (7). The vacuum nozzles (7) are connected to an external negative pressure system through a hose. The two sets of clamping arms (6) can be extended or retracted in the horizontal direction under the drive of the sliding base plate (5) to adjust the spacing between the adsorption modules.

2. The sheet metal rapid feeding and processing device according to claim 1, characterized in that, A positioning column (8) is vertically mounted in the middle of the sliding base plate (5). The top of the positioning column (8) is connected to the transmission gear (9) through a bearing. The transmission gear (9) is located between two sets of clamping arms (6) and meshes with the rack on the clamping arm (6). The central shaft of the transmission gear (9) is connected to the output shaft of the stepper motor (10) through a coupling. The stepper motor (10) is mounted on the top of the sliding base plate (5).

3. The sheet metal rapid feeding and processing device according to claim 1, characterized in that, Guide cylinders (11) are symmetrically installed on both sides of the sliding base plate (5). A piston rod (12) is provided inside the guide cylinder (11). The top of the piston rod (12) is connected to the inner wall of the guide cylinder (11) through a compression spring (13). One end of the compression spring (13) is fixedly connected to the top inner wall of the guide cylinder (11), and the other end is fixedly connected to the top of the piston rod (12). The bottom end of the piston rod (12) passes through the opening of the guide cylinder (11) and is connected to the auxiliary suction nozzle (14). The auxiliary suction nozzle (14) is connected to the external negative pressure system through a pipe.

4. The sheet metal rapid feeding and processing device according to claim 1, characterized in that, The clamping arm (6) is provided with a plurality of air blowing nozzles (15) on its inner side. The number of air blowing nozzles (15) corresponds one-to-one with the vacuum nozzle (7). The air outlet of the air blowing nozzle (15) faces downward to the vacuum nozzle (7). The air blowing nozzle (15) is connected to the top of the guide cylinder (11) through a hose.

5. The sheet metal rapid feeding and processing device according to claim 3, characterized in that, A diversion valve (16) is installed on the top of the sliding base plate (5). The air inlet of the diversion valve (16) is connected to the external negative pressure system through a hose. The air outlet of the diversion valve (16) is connected to the auxiliary suction nozzle (14) and the blowing nozzle (15) through hoses respectively. A sealing plug (17) is provided inside the diversion valve (16). One end of the sealing plug (17) is slidably connected to the inner wall of the diversion valve (16), and the other end is connected to the limiting buckle (19) through a connecting rod. The limiting buckle (19) is located outside the piston rod (12).

6. The sheet metal rapid feeding and processing device according to claim 5, characterized in that, A return spring (18) is sleeved on the outside of the sealing plug (17). One end of the return spring (18) contacts the inner wall of the diversion valve (16), and the other end contacts the outside of the limit buckle (19).

7. The sheet metal rapid feeding and processing device according to claim 3, characterized in that, A rubber gasket (20) is attached to the outside of the piston rod (12), and the rubber gasket (20) is arranged along the length of the piston rod (12).

8. The sheet metal rapid feeding and processing device according to claim 1, characterized in that, An adjusting rod (21) is rotatably mounted on the top of the sliding base plate (5). One end of the adjusting rod (21) is in contact with the top surface of the sliding base plate (5), and the other end is hinged to the end of the clamping arm (6).

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