Automatic metal plate cutting and bending equipment

Abstract

The invention discloses automatic metal plate cutting and bending equipment, and particularly relates to the technical field of metal plate combination machining, the automatic metal plate cutting and bending equipment comprises a supporting table, a movable plate is arranged above the supporting table, a supporting plate is arranged above the movable plate, and guide columns penetrate through the positions, close to the four corners of the movable plate, of the movable plate; when the upper die block and the lower die block are closed to bend a metal plate, the tool rest can be driven to move downwards in cooperation with the tool hydraulic transmission rod and the hydraulic lifting rod, the upper tool body is made to cut the metal plate to be fed, meanwhile, the pressing plate, the upper die hydraulic transmission rod and the lower die hydraulic transmission rod are matched, and the upper die hydraulic transmission rod and the lower die hydraulic transmission rod are matched to bend the metal plate. When the die is closed, the piston in the upper die hydraulic transmission rod and the piston in the lower die hydraulic transmission rod can be driven to move downwards, then a sealing cylinder, a plug disc, an ejector rod and a connecting plate are matched, a metal plate can be further clamped and bent in the die closing process, and the bending effect of the metal plate is guaranteed.

Description

Technical Field

[0001] The invention relates to the field of metal plate combined processing, and in particular to an automatic cutting and bending device for metal plates. Background Art

[0002] At present, when processing metal sheets into box-shaped devices, the metal sheets need to be bent to form a U-shaped structure. Before the bending operation, the size of the metal sheets needs to be accurately calculated, and then the metal sheets need to be cut. At the same time, the elongation of the material in the bending area needs to be considered to ensure that the internal size of the finished parts meets the design requirements as much as possible.

[0003] However, when the currently available sheet metal bending machines bend metal sheets into a U-shape, the U-shaped mold and punch used therein are easily stuck between the U-shaped mold and the punch due to partial stress after the metal sheet is bent into shape, which makes it difficult for the workpiece to be demolded, and the sheet metal bending machine is difficult to continuously perform operations such as cutting, loading, and bending. Summary of the invention

[0004] The purpose of the present invention is to provide an automatic cutting and bending device for metal sheets to solve the above-mentioned deficiencies in the technology.

[0005] In order to achieve the above-mentioned purpose, the present invention provides the following technical solutions: an automatic cutting and bending device for metal plates, comprising a support platform, a movable plate is arranged above the support platform, a support plate is arranged above the movable plate, the movable plate is penetrated by guide pillars at positions near the four corners thereof, the top end of the guide pillars is fixedly connected to the support plate, the bottom end of the guide pillars is fixedly connected to the support platform, a hydraulic rod is installed on the top of the support plate, the telescopic end of the hydraulic rod penetrates the support plate and is connected to the movable plate;

[0006] The bottom of the movable plate and the top of the support platform are respectively equipped with two upper modules and two lower modules through a retracting mechanism;

[0007] A conveyor for conveying metal sheets is arranged on one side of the support platform, a controller is installed on the front surface of the conveyor, and a cutting mechanism for cutting metal sheets is arranged on a side of the conveyor opposite to the support platform.

[0008] Preferably, an upper rectangular hole is opened inside the movable plate at the top of the upper module, and a retracting mechanism for retracting and unfolding the upper module is located in the upper rectangular hole;

[0009] The top of the support platform is located at the bottom of the lower module and is provided with a lower rectangular hole, and a retracting mechanism for retracting and expanding the lower module is located in the lower rectangular hole.

[0010] Preferably, the front and rear sides of the support platform are provided with side grooves;

[0011] An upper die hydraulic transmission rod is fixed inside the side groove on the front side;

[0012] A lower die hydraulic transmission rod is fixed inside the side groove at the rear side;

[0013] The upper die hydraulic transmission rod provides power for the retracting mechanism on the movable plate;

[0014] The lower die hydraulic transmission rod provides power for the retracting and unfolding mechanism on the support platform.

[0015] Preferably, a pressure plate that can move up and down is provided on the inner top of the side groove, the top ends of the upper mold hydraulic transmission rod and the lower mold hydraulic transmission rod are connected to the pressure plate, fixed tubes are fixed on both sides of the top of the pressure plate, the fixed tubes pass through the support platform and are connected to the bottom of the movable plate, a matching through hole is opened inside the movable plate at the top of the upper pipe opening of the fixed tube, and a matching circular hole is opened inside the pressure plate at the bottom of the lower pipe opening of the fixed tube.

[0016] Preferably, a baffle is fixed on one side of the side groove.

[0017] Preferably, the retracting mechanism comprises two connecting plates, the two connecting plates are symmetrically arranged in the upper rectangular hole, and the bottoms of the two connecting plates are connected to the upper module, two fixing plates are symmetrically arranged between the two connecting plates, and the two connecting plates and the two fixing plates are penetrated by two fixing columns;

[0018] Both ends of the fixed column are fixedly connected to the movable plate;

[0019] Both ends of the fixed plate are fixedly connected to the movable plate;

[0020] A sealing cylinder is fixed between the two fixed plates, and movable plug discs are provided on both sides of the interior of the sealing cylinder. Push rods are fixed on the opposite sides of the two plug discs, and the ends of the push rods extend to the outside of the sealing cylinder and are connected to the connecting plate. A middle joint is provided in the middle of the top of the sealing cylinder, and side joints are provided on both sides of the top of the sealing cylinder.

[0021] Preferably, when the upper mold hydraulic transmission rod provides power for the retracting and expanding mechanism on the movable plate, the hydraulic oil port on the lower side of the upper mold hydraulic transmission rod is connected to the joint in the sealing cylinder through a pipeline, and the hydraulic oil port on the upper side of the upper mold hydraulic transmission rod is connected to the two side joints of the sealing cylinder through a pipeline.

[0022] Preferably, when the lower mold hydraulic transmission rod provides power for the retracting and expanding mechanism on the support platform, the hydraulic oil port on the lower side of the lower mold hydraulic transmission rod is connected to the two side joints of the sealing cylinder through a pipeline, and the hydraulic oil port on the upper side of the lower mold hydraulic transmission rod is connected to the joint in the sealing cylinder through a pipeline.

[0023] Preferably, the cutting mechanism includes a support frame, which is fixed to one side of the top of the conveyor, a tool holder is arranged at the bottom of the support frame, an upper tool body is installed on one side of the tool holder, and a lower tool body is arranged on one side of the conveyor below the upper tool body, limiting columns are fixed on both sides of the top of the tool holder, and the limiting columns pass through the support frame, and hydraulic lifting rods are installed on both sides of the conveyor, and the telescopic ends of the hydraulic lifting rods are connected to the tool holder.

[0024] Preferably, a tool hydraulic transmission rod is installed in the side groove on the front side and the side groove on the rear side, the hydraulic oil port on the upper side of the tool hydraulic transmission rod is connected with the hydraulic oil port on the lower side of the hydraulic lifting rod through a pipeline, and the hydraulic oil port on the lower side of the tool hydraulic transmission rod is connected with the hydraulic oil port on the upper side of the hydraulic lifting rod through a pipeline.

[0025] In the above technical solution, the technical effects and advantages provided by the present invention are:

[0026] When the upper module and the lower module are combined to bend the metal sheet:

[0027] In cooperation with the tool hydraulic transmission rod and the hydraulic lifting rod, the tool holder can be driven to move downward, so as to cut the metal sheet to be loaded when the mold is closed, so as to improve the processing efficiency of the workpiece. At the same time, in cooperation with the pressing plate, the upper mold hydraulic transmission rod and the lower mold hydraulic transmission rod, the piston inside the upper mold hydraulic transmission rod and the lower mold hydraulic transmission rod can be driven to move downward. Then, in cooperation with the sealing cylinder, the plug disc, the ejector rod and the connecting plate, the "metal sheet" can be further clamped and bent during the mold closing process to ensure the bending effect of the metal sheet.

[0028] In the present invention, when the upper module and the lower module are separated from each other, the bent metal sheet is taken out:

[0029] In conjunction with the tool hydraulic transmission rod and the hydraulic lifting rod, the tool holder can be driven to move upward to reset the upper tool body in preparation for cutting the subsequent metal sheet. At the same time, the pressure plate, the upper mold hydraulic transmission rod and the lower mold hydraulic transmission rod can be used again to drive the piston inside the upper mold hydraulic transmission rod and the lower mold hydraulic transmission rod to move upward. Then, in conjunction with the sealing cylinder, the plug disc, the ejector rod and the connecting plate, the upper module, the lower module and the bent metal sheet can complete the "demolding" operation during the mold separation process to prevent the upper module, the lower module and the bent metal sheet from being squeezed too tightly, so as to quickly remove the bent metal sheet. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0031] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0032] Figure 2 It is a structural schematic diagram of the conveyor of the present invention;

[0033] Figure 3 It is a front view of the conveyor of the present invention;

[0034] Figure 4 This is a schematic diagram of the internal structure of the side groove after the baffle of the present invention is opened;

[0035] Figure 5 It is a structural schematic diagram of the upper module and the lower module of the present invention;

[0036] Figure 6 It is a structural schematic diagram of the top of the movable plate of the present invention;

[0037] Figure 7 It is a structural schematic diagram of the support platform and the movable plate of the present invention cut vertically downward at the center of the through hole;

[0038] Figure 8 It is a structural schematic diagram of the collecting mechanism of the present invention;

[0039] Fig. 9 is a cross-sectional view of the sealing cylinder of the present invention;

[0040] Fig.10 This is a schematic diagram of the internal structure of the rectangular hole in the present invention;

[0041] Fig.11 It is a structural schematic diagram of the lower module of the present invention;

[0042] Fig.12 This is one of the bottom views of the lower module of the present invention;

[0043] Fig.13 This is the second bottom view of the lower module of the present invention.

[0044] Description of reference numerals:

[0045] 1. Support plate; 2. Movable plate; 3. Support platform; 4. Hydraulic rod; 5. Conveyor; 6. Support frame; 7. Tool holder; 8. Guide column; 9. Controller; 10. Side groove; 11. Baffle; 12. Limit column; 13. Upper tool body; 14. Lower tool body; 15. Hydraulic lifting rod; 16. Upper die hydraulic transmission rod; 17. Press plate; 18. Tool hydraulic transmission rod; 19. Fixed pipe; 20. Through hole; 21. Upper module; 22. Lower module; 23. Sealing cylinder; 24. Connecting plate; 25. Fixed plate; 26. Fixed column; 27. Plug plate; 28. Ejector rod; 29. ​​Upper rectangular hole; 30. Lower die hydraulic transmission rod; 31. Lower rectangular hole. DETAILED DESCRIPTION

[0046] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0047] The present invention provides Figure 1-Figure 13 The metal sheet automatic cutting and bending equipment shown in the figure comprises a support platform 3, a movable plate 2 is arranged above the support platform 3, a support plate 1 is arranged above the movable plate 2, the movable plate 2 is penetrated by guide pillars 8 at positions near the four corners thereof, the top end of the guide pillars 8 is fixedly connected to the support plate 1, the bottom end of the guide pillars 8 is fixedly connected to the support platform 3, a hydraulic rod 4 is installed on the top of the support plate 1, and the telescopic end of the hydraulic rod 4 penetrates the support plate 1 and is connected to the movable plate 2;

[0048] The bottom of the movable plate 2 and the top of the support platform 3 are respectively equipped with two upper modules 21 and two lower modules 22 through a retracting mechanism;

[0049] A conveyor 5 for conveying metal sheets is disposed on one side of the support platform 3 , a controller 9 is installed on the front surface of the conveyor 5 , and a cutting mechanism for cutting metal sheets is disposed on one side of the conveyor 5 opposite to the support platform 3 .

[0050] Furthermore, an upper rectangular hole 29 is provided inside the movable plate 2 at the top of the upper module 21, and a retracting mechanism for retracting the upper module 21 is located in the upper rectangular hole 29;

[0051] The top of the support platform 3 is located at the bottom of the lower module 22 and is provided with a lower rectangular hole 31 . A retracting mechanism for retracting the lower module 22 is located in the lower rectangular hole 31 .

[0052] Furthermore, the front and rear sides of the support platform 3 are provided with side grooves 10;

[0053] The front side groove 10 has an upper mold hydraulic transmission rod 16 fixed inside;

[0054] A lower die hydraulic transmission rod 30 is fixed inside the rear side groove 10;

[0055] The upper die hydraulic transmission rod 16 provides power for the retracting mechanism on the movable plate 2;

[0056] The lower die hydraulic transmission rod 30 provides power for the retracting mechanism on the support platform 3 .

[0057] Furthermore, a pressing plate 17 that can move up and down is provided at the inner top of the side groove 10, and the top ends of the upper mold hydraulic transmission rod 16 and the lower mold hydraulic transmission rod 30 are connected to the pressing plate 17. Fixed tubes 19 are fixed on both sides of the top of the pressing plate 17. The fixed tubes 19 pass through the support platform 3 and are connected to the bottom of the movable plate 2. A matching through hole 20 is opened at the top of the upper pipe mouth of the fixed tube 19 inside the movable plate 2, and a matching circular hole is opened at the bottom of the lower pipe mouth of the fixed tube 19 inside the pressing plate 17.

[0058] Furthermore, a baffle 11 is fixed to one side of the side groove 10 .

[0059] Furthermore, the retracting mechanism includes two connecting plates 24, which are symmetrically arranged in the upper rectangular hole 29, and the bottoms of the two connecting plates 24 are connected to the upper module 21, and two fixing plates 25 are symmetrically arranged between the two connecting plates 24, and the two connecting plates 24 and the two fixing plates 25 are penetrated by two fixing columns 26;

[0060] Both ends of the fixed column 26 are fixedly connected to the movable plate 2;

[0061] Both ends of the fixed plate 25 are fixedly connected to the movable plate 2;

[0062] A sealing cylinder 23 is fixed between the two fixing plates 25. Movable plug discs 27 are provided on both sides of the interior of the sealing cylinder 23. Push rods 28 are fixed on the opposite sides of the two plug discs 27. The ends of the push rods 28 extend to the outside of the sealing cylinder 23 and are connected to the connecting plate 24. A middle joint is provided in the middle of the top of the sealing cylinder 23, and side joints are provided on both sides of the top of the sealing cylinder 23.

[0063] Furthermore, when the upper mold hydraulic transmission rod 16 provides power for the retracting and expanding mechanism on the movable plate 2, the hydraulic oil port on the lower side of the upper mold hydraulic transmission rod 16 is connected to the joint in the sealing cylinder 23 through a pipeline, and the hydraulic oil port on the upper side of the upper mold hydraulic transmission rod 16 is connected to the two side joints of the sealing cylinder 23 through a pipeline.

[0064] Furthermore, when the lower mold hydraulic transmission rod 30 provides power for the retracting and expanding mechanism on the support platform 3, the hydraulic oil port on the lower side of the lower mold hydraulic transmission rod 30 is connected to the two side joints of the sealing cylinder 23 through a pipeline, and the hydraulic oil port on the upper side of the lower mold hydraulic transmission rod 30 is connected to the middle joint of the sealing cylinder 23 through a pipeline.

[0065] Furthermore, the cutting mechanism includes a support frame 6, which is fixed on one side of the top of the conveyor 5. A tool holder 7 is arranged at the bottom of the support frame 6. An upper tool body 13 is installed on one side of the tool holder 7. A lower tool body 14 is arranged on one side of the conveyor 5 below the upper tool body 13. Limiting columns 12 are fixed on both sides of the top of the tool holder 7. The limiting columns 12 penetrate the support frame 6. Hydraulic lifting rods 15 are installed on both sides of the conveyor 5. The telescopic ends of the hydraulic lifting rods 15 are connected to the tool holder 7 (the tool holder 7, upper tool body 13 and lower tool body 14 in the present invention can all refer to the existing shearing machine).

[0066] Furthermore, a tool hydraulic transmission rod 18 is installed in the front side groove 10 and the rear side groove 10. The hydraulic oil port on the upper side of the tool hydraulic transmission rod 18 is connected to the hydraulic oil port on the lower side of the hydraulic lifting rod 15 through a pipeline, and the hydraulic oil port on the lower side of the tool hydraulic transmission rod 18 is connected to the hydraulic oil port on the upper side of the hydraulic lifting rod 15 through a pipeline.

[0067] Through the above technical solution:

[0068] When in use, the metal sheet is passed through the gap between the upper blade body 13 and the lower blade body 14, the conveyor 5 is opened directly through the controller 9, and the metal sheet is moved toward the support platform 3. When the edge of the metal sheet is flush with the edge of the support platform 3, the conveyor 5 is closed (the conveyor 5 has a slow speed, which can be directly seen by human vision, or an infrared obstacle sensor is installed at the intersection of the conveyor 5 and the support platform 3, and the infrared obstacle sensor is used for judgment. When the metal sheet reaches the intersection, the infrared obstacle sensor sends a signal to make the controller 9 close the conveyor 5);

[0069] Then, the hydraulic rod 4 is started to drive the movable plate 2 to move toward the support platform 3 (the hydraulic rod 4 uses the internal hydraulic station in the factory to provide hydraulic power). When the movable plate 2 moves toward the support platform 3 for the first time, "air compression" will be performed (i.e., the uncut metal sheet between the upper module 21 and the lower module 22 will be bent). The purpose of this is to be able to cut the metal sheet between the upper blade body 13 and the lower blade body 14 during the "air compression" process. The plate cutting principle is as follows:

[0070] The downward movement of the movable plate 2 will synchronously drive the fixed tube 19 to move downward, and then drive the pressure plate 17 inside the side groove 10 to move downward. Since the telescopic end of the tool hydraulic transmission rod 18 is connected to the bottom of the pressure plate 17, the piston inside the tool hydraulic transmission rod 18 will move downward, and then the hydraulic oil inside it will be transported to the hydraulic oil port on the upper side of the hydraulic lifting rod 15 through the hydraulic oil port and pipeline on the lower side, so as to drive the piston inside the hydraulic lifting rod 15 to move downward, thereby driving the tool holder 7 to move downward, so that the upper tool body 13 cuts the metal plate;

[0071] After the metal sheet is cut, the hydraulic rod 4 drives the movable plate 2 to move upward, and the telescopic end of the tool hydraulic transmission rod 18 moves upward with the pressure plate 17. At this time, the piston inside the tool hydraulic transmission rod 18 moves upward, and then the hydraulic oil inside is transported to the hydraulic oil port on the lower side of the hydraulic lifting rod 15 through the hydraulic oil port and pipeline on the upper side, so as to drive the piston inside the hydraulic lifting rod 15 to move upward, thereby driving the tool holder 7 to move upward, so that the upper tool body 13 returns to its initial position;

[0072] At this point, the cutting process of the plate is completed; (the above belongs to the working principle of the cutting mechanism when the upper module 21 and the lower module 22 are molded and separated. In the present invention, the inside of the tool hydraulic transmission rod 18, the inside of the hydraulic lifting rod 15 and the pipeline connecting the two are all filled with hydraulic oil, the upper mold hydraulic transmission rod 16, the sealing cylinder 23 and the pipeline between the two are full of hydraulic oil, the lower mold hydraulic transmission rod 30, the sealing cylinder 23 and the pipeline between the two are also full of hydraulic oil, and the tool hydraulic transmission rod 18, the hydraulic lifting rod 15, the upper mold hydraulic transmission rod 16 and the lower mold hydraulic transmission rod 30 are initially, and their internal pistons are all in the middle state)

[0073] After that, the uncut metal sheet continues to be loaded, and the cut metal sheet can be pushed to the top of the lower module 22 with the help of the conveyor 5; (as shown in the attached manual Figure 5 It can be seen that the highest surface of the support platform 3 is higher than the highest surface of the lower module 22. This height difference is the initial position of the metal sheet when it is about to be bent.

[0074] After the metal sheet is completely on the top of the lower module 22, the hydraulic rod 4 is started again to drive the movable plate 2 to move toward the support platform 3. At this time, the cutting mechanism is still working to cut the newly loaded metal sheet (see the working principle of the above-mentioned cutting mechanism for details). At the same time, as the movable plate 2 gradually moves downward, the upper module 21 will press the metal sheet into the lower module 22, and the specific shapes of the upper module 21 and the lower module 22 (as shown in the attached manual) are used. Figure 5 ), the metal sheet can be bent in the middle, so that the originally straight metal sheet is bent into a "U" shape;

[0075] During the movement of the movable plate 2 toward the support platform 3 (i.e., the "mold closing" operation), the pressing plate 17 will also squeeze the telescopic ends of the upper mold hydraulic transmission rod 16 and the lower mold hydraulic transmission rod 30 at the same time, thereby driving the pistons inside the upper mold hydraulic transmission rod 16 and the lower mold hydraulic transmission rod 30 to move downward;

[0076] When the piston inside the upper die hydraulic transmission rod 16 moves downward, the matching pipeline (such as Figure 6-Figure 9), the hydraulic oil can be injected from the lower hydraulic oil port of the upper die hydraulic transmission rod 16 into the joint in the sealing cylinder 23, so that the plug disc 27 and the ejector rod 28 drive the connecting plate 24 away from the sealing cylinder 23, so that the two upper die blocks 21 move "back to back" (this section is the principle of the retracting and expanding mechanism on the movable plate 2);

[0077] When the piston inside the lower mold hydraulic transmission rod 30 moves downward, the matching pipeline (such as Figure 10-13 ), the hydraulic oil can be injected from the lower hydraulic oil port of the lower die hydraulic transmission rod 30 into the two side joints of the sealing cylinder 23, so that the plug disc 27 and the push rod 28 drive the connecting plate 24 to move toward the sealing cylinder 23, so that the two lower die blocks 22 move "towards" (this section is the principle of the retracting and expanding mechanism on the support platform 3);

[0078] With the cooperation of the two upper modules 21 moving "backwards" and the two lower modules 22 moving "towards", the "metal sheet" can be further clamped and bent to ensure the bending effect of the metal sheet;

[0079] After the metal sheet is completely bent and forms a "U" shape, the hydraulic rod 4 can drive the movable plate 2 to move upward;

[0080] During the movement on the movable plate 2 (i.e., the "mold separation" operation), the pressing plate 17 will simultaneously pull upward the telescopic ends of the upper mold hydraulic transmission rod 16 and the lower mold hydraulic transmission rod 30, thereby driving the pistons inside the upper mold hydraulic transmission rod 16 and the lower mold hydraulic transmission rod 30 to move upward;

[0081] When the piston inside the upper die hydraulic transmission rod 16 moves upward, the matching pipeline (such as Figure 6-Figure 9 ), the hydraulic oil can be injected from the lower hydraulic oil port of the upper die hydraulic transmission rod 16 into the two side joints of the sealing cylinder 23, so that the plug plate 27 and the ejector rod 28 drive the connecting plate 24 to move in the direction of the sealing cylinder 23, so that the two upper die blocks 21 move "towards" (this section is also the principle of the retracting and expanding mechanism on the movable plate 2);

[0082] When the piston inside the lower mold hydraulic transmission rod 30 moves upward, the matching pipeline (such as Figure 10-13 ), the hydraulic oil can be injected from the lower hydraulic oil port of the lower die hydraulic transmission rod 30 into the joint in the sealing cylinder 23, so that the plug disc 27 and the ejector rod 28 drive the connecting plate 24 away from the sealing cylinder 23, so that the two lower die blocks 22 move "back to back" (this section is also the principle of the retracting and expanding mechanism on the support platform 3);

[0083] When the two upper modules 21 move "towards" and the two lower modules 22 move "backwards", the upper modules 21, the lower modules 22 and the bent metal sheet can complete the "demolding" operation, preventing the upper modules 21, the lower modules 22 from being squeezed too tightly with the bent metal sheet, so as to quickly remove the bent metal sheet; (the two upper modules 21 and the two lower modules 22 in the present invention are provided with "expansion joints" at the intersection, which are wave-shaped structures. The "expansion joints" between the two upper modules 21 can be specifically referred to Figure 8 The "expansion joint" between the two lower modules 22 can be specifically referred to Fig.11 The corrugated structure can prevent the metal sheet from falling into the gap between the two during the bending process without affecting the "toward" or "backward" movement, so as to improve the stability of the metal sheet during bending).

[0084] The above description is only by way of illustration of certain exemplary embodiments of the present invention. It is undoubted that 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 metal sheet automatic cutting and bending device, characterized in that: The invention comprises a support platform (3), a movable plate (2) is arranged above the support platform (3), a support plate (1) is arranged above the movable plate (2), guide columns (8) are passed through the movable plate (2) at positions near its four corners, the top end of the guide column (8) is fixedly connected to the support plate (1), the bottom end of the guide column (8) is fixedly connected to the support platform (3), a hydraulic rod (4) is installed on the top of the support plate (1), and the telescopic end of the hydraulic rod (4) passes through the support plate (1) and is connected to the movable plate (2); The bottom of the movable plate (2) and the top of the support platform (3) are respectively equipped with two upper modules (21) and two lower modules (22) through a retracting mechanism; A conveyor (5) for conveying metal sheets is arranged on one side of the support platform (3), a controller (9) is installed on the front surface of the conveyor (5), and a cutting mechanism for cutting metal sheets is arranged on the side of the conveyor (5) relative to the support platform (3).

2. The automatic cutting and bending equipment for metal sheets according to claim 1, characterized in that: An upper rectangular hole (29) is provided inside the movable plate (2) at the top of the upper module (21), and a retracting mechanism for retracting the upper module (21) is located in the upper rectangular hole (29); The top of the support platform (3) is located at the bottom of the lower module (22) and is provided with a lower rectangular hole (31), and a retracting mechanism for retracting the lower module (22) is located in the lower rectangular hole (31).

3. The automatic cutting and bending equipment for metal sheets according to claim 2 is characterized in that: The front and rear sides of the support platform (3) are both provided with side grooves (10); An upper die hydraulic transmission rod (16) is fixed inside the side groove (10) on the front side; A lower die hydraulic transmission rod (30) is fixed inside the side groove (10) at the rear side; The upper die hydraulic transmission rod (16) provides power reception for the retracting mechanism on the movable plate (2); The lower die hydraulic transmission rod (30) provides power reception for the retracting and unfolding mechanism on the support platform (3).

4. The automatic cutting and bending equipment for metal sheets according to claim 3 is characterized in that: A pressing plate (17) that can move up and down is arranged at the inner top of the side groove (10), the top ends of the upper mold hydraulic transmission rod (16) and the lower mold hydraulic transmission rod (30) are connected to the pressing plate (17), and fixed tubes (19) are fixed on both sides of the top of the pressing plate (17), and the fixed tubes (19) pass through the support platform (3) and are connected to the bottom of the movable plate (2), and a matching through hole (20) is opened inside the movable plate (2) at the top of the upper pipe mouth of the fixed tube (19), and a matching round hole is opened inside the pressing plate (17) at the bottom of the lower pipe mouth of the fixed tube (19).

5. The automatic cutting and bending equipment for metal sheets according to claim 4, characterized in that: A baffle (11) is fixed on one side of the side groove (10).

6. The automatic cutting and bending equipment for metal sheets according to claim 4, characterized in that: The retracting mechanism comprises two connecting plates (24), the two connecting plates (24) are symmetrically arranged in the upper rectangular hole (29), and the bottoms of the two connecting plates (24) are connected to the upper module (21), two fixing plates (25) are symmetrically arranged between the two connecting plates (24), and the two connecting plates (24) and the two fixing plates (25) are penetrated by two fixing columns (26); Both ends of the fixed column (26) are fixedly connected to the movable plate (2); Both ends of the fixed plate (25) are fixedly connected to the movable plate (2); A sealing cylinder (23) is fixed between the two fixing plates (25), movable plug discs (27) are provided on both sides of the interior of the sealing cylinder (23), push rods (28) are fixed on opposite sides of the two plug discs (27), the ends of the push rods (28) extend to the outside of the sealing cylinder (23) and are connected to the connecting plate (24), a middle joint is provided at the middle of the top of the sealing cylinder (23), and side joints are provided on both sides of the top of the sealing cylinder (23).

7. The automatic cutting and bending equipment for metal sheets according to claim 6, characterized in that: When the upper die hydraulic transmission rod (16) provides power for the retracting and expanding mechanism on the movable plate (2), the hydraulic oil port on the lower side of the upper die hydraulic transmission rod (16) is connected to the joint in the sealing cylinder (23) through a pipeline, and the hydraulic oil port on the upper side of the upper die hydraulic transmission rod (16) is connected to the two side joints of the sealing cylinder (23) through a pipeline.

8. The automatic cutting and bending equipment for metal sheets according to claim 6, characterized in that: When the lower die hydraulic transmission rod (30) provides power for the retracting and expanding mechanism on the support platform (3), the hydraulic oil port on the lower side of the lower die hydraulic transmission rod (30) is connected to the two side joints of the sealing cylinder (23) through a pipeline, and the hydraulic oil port on the upper side of the lower die hydraulic transmission rod (30) is connected to the middle joint of the sealing cylinder (23) through a pipeline.

9. The automatic cutting and bending equipment for metal sheets according to claim 2, characterized in that: The cutting mechanism comprises a support frame (6), the support frame (6) is fixed on one side of the top of a conveyor (5), a knife frame (7) is arranged at the bottom of the support frame (6), an upper knife body (13) is installed on one side of the knife frame (7), a lower knife body (14) is arranged on one side of the conveyor (5) below the upper knife body (13), limiting columns (12) are fixed on both sides of the top of the knife frame (7), the limiting columns (12) penetrate the support frame (6), and hydraulic lifting rods (15) are installed on both sides of the conveyor (5), and the telescopic ends of the hydraulic lifting rods (15) are connected to the knife frame (7).

10. The automatic cutting and bending equipment for metal sheets according to claim 9, characterized in that: A tool hydraulic transmission rod (18) is installed in the side groove (10) on the front side and the side groove (10) on the rear side. The hydraulic oil port on the upper side of the tool hydraulic transmission rod (18) is connected to the hydraulic oil port on the lower side of the hydraulic lifting rod (15) through a pipeline, and the hydraulic oil port on the lower side of the tool hydraulic transmission rod (18) is connected to the hydraulic oil port on the upper side of the hydraulic lifting rod (15) through a pipeline.

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