A feeding device for a shearing machine

Abstract

The present invention discloses a loading device for a shearing machine, which belongs to the technical field of steel plate processing equipment. The device comprises a loading rack for placing steel plates, a conveying platform for pushing the steel plates to the cutting device of the shearing machine, and a manipulator for transferring the steel plates from the loading rack to the conveying platform; the conveying platform comprises a table plate and a table frame, and the top surface of the table plate is provided with two guide rails for placing steel plates and a pushing mechanism for pushing the steel plates forward along the two guide rails; the pushing mechanism comprises a pushing rack and a first driving device for driving the pushing rack to move back and forth; the pushing rack is connected to a pushing block through a connecting rod, and the pushing rack is also provided with an electric control clamp, which is located on one side of the pushing block; the table plate is provided with a residual material plate recovery hole, and the table plate is provided with a blanking block on one side of the residual material plate recovery hole, and the pushing rack passes directly above the residual material plate recovery hole and the blanking block under the drive of the first driving device; the present invention solves the problem that the existing loading device of the shearing machine does not have the function of rejecting residual material plates.

Description

Technical Field

[0001] The invention relates to the technical field of steel plate processing equipment, in particular to a feeding device of a shearing machine. Background Art

[0002] Shearing machines are a type of forging machine commonly used for processing steel plates. They generally include a feeding device, a cutting device, and a blanking device. During operation, the feeding device transfers the steel plate to the cutting device, which cuts the steel plate into several sheets. The sheets then fall into the blanking device and are removed from the shearing machine through the blanking device. Existing loading devices mainly include a conveyor table and a manipulator. The manipulator transfers the steel plate to the conveyor table, which then transfers the metal plate to the cutting device through the conveying action of the conveyor table. For example, the automatic shearing machine proposed in prior art CN 216541094 U adopts this type of loading structure. However, during the steel plate cutting process, excess sheet material is usually generated at the end. The excess sheet material needs to be manually removed or dropped into the blanking device and then manually removed, which brings inconvenience to the production staff and increases the workload. Therefore, it is necessary to propose a loading device with the function of removing excess sheet material. Summary of the Invention

[0003] In view of the above, it is necessary to provide a feeding device for a shearing machine to solve the problem that the existing feeding device for a shearing machine does not have the function of removing excess material.

[0004] In order to achieve the above object, the technical solution adopted by the present invention is:

[0005] A loading device for a plate shearing machine comprises a material rack for placing steel plates, a conveying platform for pushing the steel plates to a cutting device of the plate shearing machine, and a manipulator for transferring the steel plates from the material rack to the conveying platform;

[0006] The conveying table includes a table plate and a table frame, the table plate is fixedly mounted on the top of the table frame, the front end of the table plate is one end for cooperating with the cutting device of the shearing machine, and extends forward relative to the table frame; the top surface of the table plate is provided with two guide rails for placing steel plates and a pushing mechanism for pushing the steel plates forward along the two guide rails; the supporting surface of the guide rail for supporting the steel plates is spaced apart from the top surface of the table plate, and the front end surface of the guide rail is flush with the front end surface of the table plate; the pushing mechanism includes a pushing frame and a first driving device for driving the pushing frame to move forward and backward; the pushing frame is connected to the table frame by a connecting rod There is a pushing block, and the pushing frame is also provided with an electric-controlled clamp, which is located on one side of the pushing block, and when the pushing block contacts the rear end face of the steel plate, the rear end face of the steel plate is just located in the clamping space of the electric-controlled clamp; the table is provided with a residual material plate recovery hole, and the residual material plate recovery hole is located on the rear end extension line of the guide rail, and the table is provided with a blanking block on one side of the residual material plate recovery hole, and the blanking block is arranged opposite to the guide rail, and its top surface is higher than the support surface of the guide rail; the pushing frame passes directly above the residual material plate recovery hole and the blanking block under the drive of the first driving device.

[0007] Preferably, the material rack is arranged on one side of the conveying platform, and includes a horizontally arranged base and a vertically arranged side panel. The base is a rectangular structure, and its length direction is arranged parallel to the length direction of the conveying platform. The side panel is fixedly installed on the top surface of the base close to the conveying platform.

[0008] Preferably, the manipulator includes a top plate, which is arranged horizontally above the conveying platform and the material rack, and support feet are provided on the left and right sides of the top plate; a movable plate and a second driving device for driving the movable plate to move in the left and right directions are provided below the top plate, and the second driving device is installed on the bottom surface of the top plate; at least two electrically controlled telescopic rods are arranged at intervals on the bottom surface of the movable plate, and the electrically controlled telescopic rods are arranged vertically, and an electromagnet suction cup is connected to the bottom thereof.

[0009] Preferably, the first drive device and the second drive device are both screw linear modules.

[0010] Preferably, the pushing rack includes two columns and a cross bar, the two ends of the cross bar are respectively connected to the two columns, the two columns are connected to the first driving device, the distance between the two columns is greater than the distance between the two guide rails, the cross bar is higher than the blanking block, and the electric control clamp and the connecting rod are fixedly connected to the cross bar.

[0011] Preferably, the electric-controlled clamp includes a concave groove plate, a cylinder and a clamping plate. The top of the concave groove plate is connected to the cross bar, and its groove is located on the front side; the inner bottom of the concave groove plate is flush with the support surface of the guide rail, and the cylinder is arranged at the outer top of the concave groove plate, and its telescopic end movably penetrates into the concave groove plate and is connected to the clamping plate.

[0012] Preferably, a waste plate recovery vehicle is provided directly below the waste plate recovery hole.

[0013] Preferably, the loading device further includes a control box, a controller is provided on the inner side of the control box, and a button module is provided on the outer side, and the button module, the first driving device, the electric control clamp and the manipulator are all electrically connected to the controller.

[0014] Preferably, the connecting rod is arranged vertically, the pushing block is located directly in front of the connecting rod, and a pressure sensor is arranged between the connecting rod and the pushing block for sensing the thrust of pushing the steel plate; the table is provided with a first positioning sensor and a second positioning sensor for respectively locating the end point and the starting point of the pushing rack, and the first positioning sensor and the second positioning sensor are respectively located at the front end and the rear end of the top surface of the table; the table is also provided with a third positioning sensor for sensing whether the pushing rack moves to directly above the residual material plate recovery hole, and the first positioning sensor, the second positioning sensor, the third positioning sensor and the pressure sensor are all electrically connected to the controller.

[0015] Preferably, the controller is a PLC.

[0016] Due to the adoption of the above technical solution, the present invention has the following beneficial effects:

[0017] 1. The present invention is used to realize the automatic loading function of the shearing machine and has the function of rejecting the residual material plates, which provides convenience for production personnel and reduces their workload. During operation, the robot transfers the steel plate from the material rack to the conveyor platform, and the conveyor platform pushes the steel plate to the cutting device of the shearing machine through the pushing mechanism. When the steel plate is cut to the end and becomes the residual material plate, the electric-controlled clamp of the pushing mechanism clamps the residual material plate and drives the residual material plate to move backward. When the pushing rack of the pushing mechanism moves to the top of the residual material plate recovery hole, the electric-controlled clamp releases the residual material plate. When the electric-controlled clamp continues to move backward, the residual material plate is blocked by the material discharge block and automatically falls into the residual material plate recovery vehicle below the residual material plate recovery hole, thus completing the residual material plate rejection operation.

[0018] 2. The pushing mechanism of the present invention completes the operation of removing the remaining plate during the resetting process. During the resetting process, the manipulator can work simultaneously. When the steel plates are loaded on the two guide rails, the pushing mechanism moves forward directly and enters the processing cycle of the next steel plate, which can reduce the loading time and thus save production time.

[0019] 3. The present invention provides a pressure sensor between the push block and the connecting rod of the pushing frame to sense the force of pushing the steel plate. When the force exceeds the set value, it indicates that the front end of the steel plate has contacted the baffle of the cutting device. At this time, the controller controls the first drive device to stop working to avoid continuous pressure. When the blade of the cutting device completes the cutting operation, the cut sheet falls into the unloading device. The front end of the steel plate is spaced apart from the baffle of the cutting device, and the force of pushing the steel plate instantly decreases. At this time, the controller controls the first drive device to work, pushing the steel plate forward, and the cycle continues until a residual sheet is finally produced. This arrangement can effectively avoid energy waste and equipment loss caused by continuously pushing the steel plate.

[0020] 4. The present invention is also provided with a first positioning sensor, a second positioning sensor, and a third positioning sensor. When the pusher moves to the end point, it is sensed by the first positioning sensor. At this time, the steel plate cutting work is completed. The controller controls the electric clamp to clamp the residual plate and controls the first drive device to operate, driving the pusher to move backward and reset. When the pusher passes directly above the residual plate recovery hole, it is sensed by the third positioning sensor. The controller controls the electric clamp to release the residual plate. When the pusher moves to the starting point, it is sensed by the second positioning sensor. The controller controls the first drive device to stop working. In this way, by providing multiple positioning sensors, the accuracy of the push mechanism is improved, and automated production is achieved. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is a top view of a blanking device provided in an embodiment of the present invention;

[0022] Figure 2 is a top view of a transfer platform provided by an embodiment of the present invention;

[0023] Figure 3 is a front view of a transfer platform provided by an embodiment of the present invention;

[0024] Figure 4 This is a schematic diagram of the installation of the push rack provided in an embodiment of the present invention;

[0025] Figure 5 Schematic diagram of a material rack provided by an embodiment of the present invention for placing steel plates;

[0026] Figure 6 Schematic diagram of the structure of the manipulator provided by an embodiment of the present invention;

[0027] Figure 7 1 is a schematic diagram of the installation of the electromagnetic chuck provided in an embodiment of the present invention;

[0028] Figure 8 This is a structural diagram of a conveyor platform pushing a steel plate provided in an embodiment of the present invention;

[0029] Figure 9 This is a schematic structural diagram of a conveyor provided by an embodiment of the present invention for removing excess material plates;

[0030] Figure 10 This is a schematic structural diagram of an electric-controlled clamp holding a residual plate provided by an embodiment of the present invention;

[0031] The main component symbols in the figure are explained as follows:

[0032] In the accompanying drawings, 1- material rack, 2- base, 3- side plate, 4- conveying table, 5- table plate, 6- table frame, 7- guide rail, 8- supporting surface, 9- pushing rack, 10- column, 11- cross bar, 12- first driving device, 13- connecting rod, 14- pressure sensor, 15- push block, 16- electric control clamp, 17- concave groove plate, 18- cylinder, 19- clamping plate, 20- residual material plate recovery hole, 21- unloading block, 22- residual material plate recovery vehicle, 23- manipulator, 24- top plate, 25- supporting foot, 26- moving plate, 27- second driving device, 28- electric control telescopic rod, 29- electromagnet suction cup, 30- control box, 31- steel plate, 32- shearing machine cutting device, 33- lower pressure rod, 34- blade, 35- cutting table, 36- baffle, 37- residual material plate.

[0033] The following specific embodiments will further illustrate the present invention in conjunction with the above-mentioned drawings. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. The drawings are only for illustrative purposes and represent only schematic diagrams, not actual drawings. They should not be understood as limiting this patent. In order to better illustrate the specific implementation methods of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of the actual product. It is understandable to those skilled in the art that some well-known structures, parts and their descriptions in the drawings may be omitted. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0035] In the description of the present invention, it should also be noted that, unless otherwise expressly specified or limited, the terms "disposed" and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; they may refer to mechanical connections or electrical connections; they may refer to direct connections or indirect connections through an intermediate medium; and they may refer to internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0036] Example

[0037] like Figure 1 As shown, a loading device of a shearing machine includes a material rack 1 for placing steel plates 31, a conveying table 4 for pushing the steel plates 31 to the cutting device 32 of the shearing machine, a robot 23 for transferring the steel plates 31 from the material rack 1 to the conveying table 4, and a control box 30.

[0038] like Figure 2-4 As shown, the conveyor platform 4 includes a platen 5 and a frame 6. The platen 5 is fixedly mounted on top of the frame 6. The front end of the platen 5 is used to cooperate with the cutting device of the shearing machine. It extends forward relative to the frame 6 to better cooperate with the cutting device of the shearing machine. The top surface of the platen 5 is provided with two guide rails 7 for placing the steel plate 31 and a pushing mechanism for pushing the steel plate 31 forward along the two guide rails 7. The support surface 8 of the guide rail 7 for supporting the steel plate 31 is spaced apart from the top surface of the platen 5, and the front end of the guide rail 7 is flush with the front end of the platen 5.

[0039] The pushing mechanism includes a pushing frame 9 and a first driving device 12 for driving the pushing frame 9 to move forward and backward. The pushing frame 9 is connected to a pushing block 15 via a connecting rod 13. Specifically, the connecting rod 13 is vertically arranged, and the pushing block 15 is located directly in front of the connecting rod 13. The pushing frame 9 is also provided with an electric control clamp 16. The electric control clamp 16 is located on one side of the pushing block 15. When the pushing block 15 contacts the rear end surface of the steel plate 31, the rear end surface of the steel plate 31 is exactly located in the clamping space of the electric control clamp 16. Figure 8 shown.

[0040] The table 5 is provided with a residual material plate recovery hole 20, which is located on the rear end extension line of the guide rail 7. The table 5 is provided with a blanking block 21 on one side of the residual material plate recovery hole 20. The blanking block 21 is arranged opposite to the guide rail 7, and its top surface is higher than the support surface 8 of the guide rail 7. The pushing frame 9 passes directly above the residual material plate recovery hole 20 and the blanking block 21 under the drive of the first driving device 12. When the pushing frame 9 moves backward under the drive of the first driving device 12 and the electric control clamp 16 releases the residual material plate 37, the residual material plate 37 falls from the residual material plate recovery hole 20, as shown in FIG. Figure 9 A residual plate recovery vehicle 22 is provided directly below the residual plate recovery hole 20 to facilitate recovery and transfer of the residual plate 37 .

[0041] Among them, the first drive device 12 is a screw linear module, which includes a first drive motor, a first screw and a first limit rod. One end of the first screw is rotatably connected to the table 5 through a bearing, and the other end is fixedly connected to the output shaft of the first drive motor. The first drive motor is fixedly connected to the table 5, and the two ends of the first limit rod are fixedly connected to the table 5 through a fixed seat. The pushing frame 9 includes two columns 10 and a cross bar 11. The two ends of the cross bar 11 are respectively connected to the two columns 10. Both columns 10 are connected to the first drive device 12. The distance between the two columns 10 is greater than the distance between the two guide rails 7. The cross bar 11 is higher than the blanking block 21. The electric control clamp 16 and the connecting rod 13 are both fixedly connected to the cross bar 11. Specifically, the first screw and the first limit rod are respectively passed through the two columns 10, the lower end of one column 10 is threadedly connected to the first screw, and the lower end of the other column 10 is slidably connected to the first limit rod. During operation, the first drive motor rotates, driving the first screw rod to rotate, and the first screw rod drives the column 10 to move back and forth, thereby realizing the forward and backward movement of the pushing frame 9.

[0042] like Figure 2 、 3 As shown in Figures 4 and 10, the electrically controlled clamp 16 includes a concave groove plate 17, a cylinder 18, and a clamping plate 19. The top of the concave groove plate 17 is connected to the crossbar 11, and its notch is located on the front side. The inner bottom of the concave groove plate 17 is flush with the support surface 8 of the guide rail 7. The cylinder 18 is arranged on the outer top of the concave groove plate 17, and its telescopic end movably penetrates the concave groove plate 17 and is connected to the clamping plate 19. When the electrically controlled clamp 16 is in operation, the telescopic end of the cylinder 18 moves downward, pushing the clamping plate 19 downward. Through the clamping action of the clamping plate 19 and the lower end of the concave groove plate 17, the residual material plate 37 is clamped.

[0043] like Figure 10 As shown, in the prior art, the shearing machine cutting device 32 is provided with a lower pressure rod 33, a blade 34, a cutting table 35 and a baffle 36. Among them, the lower pressure rod 33 and the cutting table 35 are opposite to each other up and down. When the blade 34 cuts the steel plate 31 downward, the lower pressure rod 33 moves downward at the same time, cooperates with the cutting table 35, and presses the steel plate 31. The baffle 36 is used to block the steel plate 31 and determine the cutting width. In the present invention, the support surface 8 of the guide rail 7 needs to be kept at the same horizontal plane as the cutting table 35 to ensure that the steel plate 31 remains horizontal during cutting. When the pushing frame 9 moves to the end point, the electric control clamp 16 approaches the cutting table 35 and cannot move forward. The remaining steel plate 31 automatically becomes a residual plate 37, which needs to be removed and recycled.

[0044] The present invention is used to realize the automatic loading function of the shearing machine and has the function of removing the excess material plate 37, which provides convenience for production personnel and reduces their workload. During operation, the manipulator 23 transfers the steel plate 31 from the material rack 1 to the conveying platform 4, and the conveying platform 4 pushes the steel plate 31 to the shearing machine cutting device 32 through the pushing mechanism. When the steel plate 31 is cut to finally become the excess material plate 37, the electric-controlled clamp 16 of the pushing mechanism clamps the excess material plate 37 and drives the excess material plate 37 to move backward. When the pushing rack 9 of the pushing mechanism moves to the top of the excess material plate recovery hole 20, the electric-controlled clamp 16 releases the excess material plate 37. During the process of the electric-controlled clamp 16 continuing to move backward, the excess material plate 37 is blocked by the unloading block 21 and automatically falls into the excess material plate recovery vehicle 22 below the excess material plate recovery hole 20, thereby completing the removal operation of the excess material plate 37. The pushing mechanism of the present invention completes the removal operation of the residual material plate 37 during the resetting process. During the resetting process, the manipulator 23 can work simultaneously. When the steel plate 31 is loaded on the two guide rails 7, the pushing mechanism moves forward directly and enters the processing cycle of the next steel plate 31, which can reduce the loading time and thus save production time.

[0045] like Figure 5 As shown, a material rack 1 is mounted on one side of a conveyor platform 4 and comprises a horizontal base 2 and vertical side panels 3. The base 2 is a rectangular parallelepiped, its length parallel to that of the conveyor platform 4. The side panels 3 are fixedly mounted on the top surface of the base 2, near the conveyor platform 4. When steel plates 31 are stacked on the material rack 1, their side near the conveyor platform 4 abuts against the side panels 3. The positioning of the side panels 3 ensures that all steel plates 31 are evenly spaced from the conveyor platform 4, facilitating the handling and positioning of the steel plates 31 by the robot 23.

[0046] like Figure 1 、 6 As shown in Figures 7 and 8, the manipulator 23 includes a top plate 24, which is arranged across and directly above the conveying platform 4 and the material rack 1, and support feet 25 are provided on both the left and right sides of the top plate 24. A movable plate 26 and a second drive device 27 for driving the movable plate 26 to move in the left and right directions are provided below the top plate 24, and the second drive device 27 is installed on the bottom surface of the top plate 24. At least two electrically controlled telescopic rods 28 are provided at intervals on the bottom surface of the movable plate 26. The electrically controlled telescopic rods 28 are vertically arranged, and an electromagnetic suction cup 29 is connected to the bottom thereof. In this embodiment, there are two electrically controlled telescopic rods 28 to ensure the stability of the steel plate 31 during transportation. The electromagnetic suction cup 29 has a strong suction force, which can prevent the steel plate from accidentally falling during transportation. Compared with the negative pressure suction cup, it has stronger stability.

[0047] Among them, the second drive device 27 is a screw linear module, which includes a second drive motor, a second screw, and a second limit rod. One end of the second screw is rotatably connected to the top plate 24 through a bearing, and the other end is fixedly connected to the output shaft of the second drive motor. The second drive motor is fixedly connected to the top plate 24, and both ends of the second limit rod are fixedly connected to the top plate 24 through a fixed seat. Two connecting sleeves are spaced apart on the top surface of the movable plate 26. The second screw and the second limit rod are respectively passed through two connecting sleeves. The second screw is threadedly connected to one of the connecting sleeves, and the second limit rod is slidably connected to the other connecting sleeve. During operation, the second drive motor rotates, driving the second screw to rotate. The second screw drives the connecting sleeve to move left and right, and the connecting sleeve drives the movable plate 26 to move left and right, thereby driving the electric-controlled telescopic rod 28 and the electromagnetic suction cup 29 to move. Both the first drive device 12 and the second drive device 27 use screw linear modules, which have good transmission stability and can achieve a large travel range.

[0048] The control box 30 houses a controller inside and a key module outside. The key module, first drive unit 12, electrically controlled clamp 16, and manipulator 23 are all electrically connected to the controller. Specifically, the first drive motor of the first drive unit 12, the cylinder 18 of the electrically controlled clamp 16, and the second drive motor, electrically controlled telescopic rod 28, and electromagnet suction cup 29 of the manipulator 23 are all electrically connected to the controller. In this embodiment, the controller is a PLC. The control box 30 coordinates the operations of the various mechanisms to achieve automatic loading.

[0049] In addition, a pressure sensor 14 is provided between the connecting rod 13 and the push block 15 to sense the magnitude of the thrust for pushing the steel plate 31. When the thrust exceeds the set value, it indicates that the front end of the steel plate 31 has contacted the baffle 36 of the cutting device. At this time, the controller controls the first drive device 12 to stop working to avoid continuous pressure. When the blade 34 of the cutting device completes the cutting operation, the cut sheet falls into the unloading device. The front end of the steel plate 31 is spaced apart from the baffle 36 of the cutting device, and the thrust for pushing the steel plate 31 instantly decreases. At this time, the controller controls the first drive device 12 to work, pushing the steel plate 31 forward, and the cycle continues until a residual sheet 37 is finally generated. This arrangement can effectively avoid energy waste and equipment loss caused by continuously pushing the steel plate 31.

[0050] The platen 5 is equipped with a first positioning sensor and a second positioning sensor for locating the end and starting points of the push rack 9, respectively. The first and second positioning sensors are located at the front and rear ends of the top surface of the platen 5. The platen 5 is also equipped with a third positioning sensor for sensing whether the push rack 9 has moved directly above the residual sheet recovery hole 20. The first, second, and third positioning sensors, as well as the pressure sensor 14, are all electrically connected to the controller.

[0051] When the pushing rack 9 moves to the end point, it is sensed by the first positioning sensor. At this time, the cutting work of the steel plate 31 has been completed. The controller controls the electric clamp 16 to clamp the residual plate 37, and controls the first drive device 12 to work, driving the pushing rack 9 to move backward and reset. When the pushing rack 9 passes directly above the residual plate recovery hole 20, it is sensed by the third positioning sensor. The controller controls the electric clamp 16 to release the residual plate 37. When the pushing rack 9 moves to the starting point, it is sensed by the second positioning sensor. The controller controls the first drive device 12 to stop working. In this way, by setting up multiple positioning sensors, the accuracy of the pushing mechanism is improved and automated production is realized. The first positioning sensor, the second positioning sensor and the third positioning sensor can be selected as proximity sensors, which can be set on the side of the first screw rod or the first limit rod to sense the column 10 of the pushing rack 9.

[0052] In addition, a metal sensor can be installed between the two guide rails 7 to sense whether a steel plate 31 is placed. The metal sensor is electrically connected to the controller. When the metal sensor senses that a steel plate 31 is placed between the two guide rails 7, the controller controls the pushing mechanism to push the steel plate 31, thereby achieving automated operation.

[0053] The above description is a detailed description of the preferred embodiments of the present invention, but the embodiments are not intended to limit the scope of the patent application of the present invention. Any equivalent changes or modifications completed under the technical spirit suggested by the present invention should fall within the patent scope covered by the present invention.

Claims

1. A feeding device for a shearing machine, characterized in that: It includes a material rack for placing steel plates, a transfer table for pushing the steel plates to the shearing device, and a manipulator for transferring the steel plates from the material rack to the transfer table; The conveying table includes a table plate and a table frame, the table plate is fixedly mounted on the top of the table frame, the front end of the table plate is one end for cooperating with the cutting device of the shearing machine, and extends forward relative to the table frame; the top surface of the table plate is provided with two guide rails for placing steel plates and a pushing mechanism for pushing the steel plates forward along the two guide rails; the supporting surface of the guide rail for supporting the steel plates is spaced apart from the top surface of the table plate, and the front end surface of the guide rail is flush with the front end surface of the table plate; the pushing mechanism includes a pushing frame and a first driving device for driving the pushing frame to move forward and backward; the pushing frame is connected to the table frame by a connecting rod There is a pushing block, and the pushing frame is also provided with an electric-controlled clamp, which is located on one side of the pushing block, and when the pushing block contacts the rear end surface of the steel plate, the rear end surface of the steel plate is just located in the clamping space of the electric-controlled clamp; the table is provided with a residual material plate recovery hole, and the residual material plate recovery hole is located on the rear end extension line of the guide rail; the table is provided with a blanking block on one side of the residual material plate recovery hole, and the blanking block is arranged opposite to the guide rail, and its top surface is higher than the supporting surface of the guide rail; the pushing frame passes through the residual material plate recovery hole and right above the blanking block under the drive of the first driving device; A waste plate recovery vehicle is provided directly below the waste plate recovery hole; The device further comprises a control box, wherein a controller is provided on the inner side of the control box and a key module is provided on the outer side, wherein the key module, the first driving device, the electric control clamp and the manipulator are all electrically connected to the controller; The connecting rod is arranged vertically, and the push block is located directly in front of the connecting rod. A pressure sensor is arranged between the connecting rod and the push block for sensing the thrust of pushing the steel plate; a first positioning sensor and a second positioning sensor for locating the end point and the starting point of the pushing rack are respectively provided on the table plate, and the first positioning sensor and the second positioning sensor are respectively located at the front end and the rear end of the top surface of the table plate; the table plate is also provided with a third positioning sensor for sensing whether the pushing rack moves to directly above the residual material plate recovery hole, and the first positioning sensor, the second positioning sensor, the third positioning sensor and the pressure sensor are all electrically connected to the controller.

2. A feeding device for a shearing machine according to claim 1, characterized in that: The material rack is arranged on one side of the conveying platform, and includes a horizontally arranged base and a vertically arranged side panel. The base is a rectangular structure, and its length direction is arranged parallel to the length direction of the conveying platform. The side panel is fixedly installed on the top surface of the base close to the conveying platform.

3. A feeding device for a shearing machine according to claim 1, characterized in that: The robot includes a top plate, which is arranged horizontally above the conveying platform and the material rack, and support feet are provided on the left and right sides of the top plate; a movable plate and a second driving device for driving the movable plate to move in the left and right directions are provided below the top plate, and the second driving device is installed on the bottom surface of the top plate; at least two electrically controlled telescopic rods are arranged at intervals on the bottom surface of the movable plate, and the electrically controlled telescopic rods are arranged vertically, and an electromagnet suction cup is connected to the bottom thereof.

4. A feeding device for a shearing machine according to claim 3, characterized in that: The first driving device and the second driving device are both screw linear modules.

5. The feeding device of the shearing machine according to claim 1, characterized in that: The pushing frame includes two columns and a cross bar, the two ends of the cross bar are respectively connected to the two columns, the two columns are connected to the first driving device, the distance between the two columns is greater than the distance between the two guide rails, the cross bar is higher than the blanking block, and the electric control clamp and the connecting rod are fixedly connected to the cross bar.

6. A feeding device for a plate shearing machine according to claim 5, characterized in that: The electric-controlled clamp includes a concave groove plate, a cylinder and a clamping plate. The top of the concave groove plate is connected to the cross bar, and its notch is located on the front side; the inner bottom of the concave groove plate is flush with the supporting surface of the guide rail, and the cylinder is arranged on the outer top of the concave groove plate, and its telescopic end movably penetrates into the concave groove plate and is connected to the clamping plate.

7. The feeding device of the shearing machine according to claim 1, characterized in that: The controller is a PLC.

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