Integrated bending and forming device and forming method for aluminum single panels

Abstract

This invention relates to an integrated bending and forming device and method for aluminum single-panel panels, encompassing the field of non-cutting metal sheet processing technology. The integrated bending and forming device includes a worktable, a gantry frame, adjustable-spacing bending modules, a bending structure, a rotating structure, and an adsorption structure. The bending structure comprises a trapezoidal bending plate, a second bending plate, and a first bending plate, which achieve three-stage bending through synchronous motion driven by a bidirectional transmission mechanism. The rotating structure includes a hollow rotating disk and a one-way bearing for 90° rotation of the sheet material. The adsorption structure utilizes a vacuum generator to fix the sheet material. The forming method includes sheet material placement and positioning, bending module pressing, negative pressure adsorption, multi-stage bending execution, module disassembly and reset, steering control, and remaining edge bending. This solution can efficiently complete multi-directional integrated bending of aluminum single-panel panels, avoiding grooving and improving product precision and strength.

Description

Technical Field

[0001] This invention relates to the field of non-cutting processing technology for metal sheets, and particularly to an integrated bending forming device and forming method for aluminum single sheets. Background Technology

[0002] In aluminum panel processing, aluminum panels are commonly used in building curtain walls and decoration due to their lightweight and corrosion-resistant properties. Traditional bending methods mostly rely on manual operation or simple mechanical equipment. Manual methods are slow, labor-intensive, and prone to inconsistent bending angles and straightness, leading to unstable product quality. Mechanical equipment typically only allows for unidirectional bending; multi-directional bending requires multiple clamping and adjustments, making the process cumbersome and time-consuming. Grooving is often done on the panel before bending to reduce resistance, but this can easily cause cracks at the bending point, affecting the product's appearance and strength. These shortcomings increase scrap rates and production costs, impacting the efficiency and reliability of aluminum panel applications.

[0003] To overcome the above shortcomings, a device capable of multi-directional integrated bending of aluminum panels was developed to improve bending efficiency and accuracy, reduce production costs, and prevent cracks from appearing at the bending points. Summary of the Invention

[0004] The purpose of this invention is to solve the problems of existing manual bending, which is not only inefficient and labor-intensive, but also difficult to guarantee bending accuracy. For aluminum single-panel products that require bending in multiple directions, multiple clamping and adjustment are required, which is cumbersome and inefficient. In addition, grooving is often required at the bending point during the bending process. The invention proposes an integrated bending forming device and forming method for aluminum single-panel.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] The integrated bending and forming device for aluminum single panels includes:

[0007] The workbench has a gantry frame fixedly installed on its top, and adjustable-spacing bending modules are symmetrically arranged inside the gantry frame.

[0008] The bending structure includes:

[0009] Two trapezoidal bent plates slide through the worktable.

[0010] The second bending plate and the first bending plate are located above the workbench.

[0011] A bidirectional transmission mechanism that drives the trapezoidal bending plate, the second bending plate, and the first bending plate to move synchronously;

[0012] The rotating structure includes a hollow rotating disk rotatably disposed in the workbench and a rotating cylinder connected thereto, which is used to drive the bent sheet metal to rotate 90°.

[0013] The adsorption structure includes a vacuum generating device linked to the bidirectional transmission mechanism, used to create negative pressure inside the hollow rotating disk to fix the plate.

[0014] The bending module, trapezoidal bending plate, second bending plate and first bending plate form a three-level bending cooperation. The bidirectional transmission mechanism drives the three-level bending sequence through a single linear motion, and the plate is kept in a fixed state by the adsorption structure during the bending process.

[0015] In one possible design, the bidirectional transmission mechanism includes:

[0016] The second bidirectional lead screw is rotatably mounted below the worktable via a base.

[0017] The guide rod is fixedly installed parallel to the second bidirectional lead screw;

[0018] Two second connecting plates are respectively threaded onto the positive and negative thread sections of the second bidirectional lead screw and slidably sleeved on the guide rod;

[0019] Multiple trapezoidal plates are fixed to the second connecting plate and slide on the bottom of the workbench, with their inclined surfaces forming a lifting fit with the trapezoidal bending plates;

[0020] Two U-shaped frames are fixed to the top of the second connecting plate and pass through the workbench. Along their movement path, the second bending plate is elastically compressed and bent, and the first bending plate is rigidly bent.

[0021] In one possible design, the second bending plate is connected to the U-shaped frame via a gas-liquid buffer mechanism, comprising:

[0022] A fixed plate is connected to a U-shaped frame via a fixing rod.

[0023] T-shaped plate, fixedly sleeved on the fixing rod;

[0024] Multiple piston rods slide through the T-shaped plate and seal the sliding cavity extending into the second bending plate;

[0025] The first spring is sleeved around the piston rod;

[0026] The sliding cavity is filled with inert gas to form a variable damping secondary bending force control mechanism.

[0027] In one possible design, the adsorption structure comprises:

[0028] The piston block slides sealed inside the rotating cylinder and is connected to the lifting plate via a pull rod.

[0029] A sliding rod vertically passes through the lifting plate and is fixed to the bottom of the worktable;

[0030] The second spring is sleeved around the sliding rod and provides a restoring force.

[0031] An isosceles trapezoidal block and a trapezoidal guide block are fixed to the lifting plate and the trapezoidal plate respectively, forming an inclined plane driving engagement;

[0032] The movement of the trapezoidal plate involves the trapezoidal guide block pressing against the isosceles trapezoidal block, which drives the piston block to move downward and draw in suction to create negative pressure.

[0033] In one possible design, the rotating structure includes: a one-way bearing, the inner ring of which is fixedly sleeved on the rotating cylinder; a spur gear, fixed to the outer ring of the one-way bearing; and a spur rack, fixed to the trapezoidal plate and meshing with the spur gear.

[0034] When the trapezoidal plate is reset and moved, the spur gear driven by the rack drives the one-way bearing to lock and rotate, thereby realizing a 90° one-way rotation of the hollow rotating disk.

[0035] In one possible design, the bending module includes: a first bidirectional lead screw, rotatably mounted on the inner wall of the top of the gantry frame; two movable seats, respectively threaded onto the positive and negative threaded sections of the first bidirectional lead screw and sliding on the inner wall of the top of the gantry frame; and a cylinder, fixed to the movable seats and connected to the bending module via a first connecting plate.

[0036] The bottom and top edges of the bending module form bending guide surfaces that cooperate with the trapezoidal bending plate and the second bending plate, respectively.

[0037] In one possible design, it also includes: an electric push rod, symmetrically fixed on both sides of the gantry frame; a leveling plate, connected to the output shaft of the electric push rod and sliding on the top of the worktable; wherein the moving path of the leveling plate is perpendicular to the axis of the first bidirectional lead screw, forming a plate centering positioning mechanism.

[0038] In one possible design, the bending module is a detachable splicing structure, comprising: two end blocks disposed at both ends of the structure; multiple splicing blocks connected to the end blocks by a pin-rod and pin-groove engagement; and countersunk bolts threaded through the splicing blocks and end blocks for fixation; wherein the effective length of the bending module is adjusted by increasing or decreasing the number of splicing blocks.

[0039] In one possible design, the bends of the trapezoidal bent plate and the edges of the second bent plate are provided with arc-shaped transition surfaces, the radius of curvature of which is greater than 1.5 to 2 times the thickness of the plate.

[0040] The forming method of the aluminum single-panel bending integrated forming device in this application includes the following steps:

[0041] S1. Plate Placement and Positioning: Place the plate on top of the hollow rotating disk above the workbench; drive the electric push rod to move the two regular plates towards each other, calibrate and center the plate in the center of the workbench;

[0042] S2, Bending Module Positioning and Pre-pressing: Drive the first bidirectional lead screw to rotate, causing the two moving seats to move towards each other, so that the bending module moves to the position where the plate is to be bent; drive the cylinder to move the bending module down to press the plate through the first connecting plate;

[0043] S3, Negative Pressure Adsorption Fixing: Drive the second bidirectional screw to rotate, causing the second connecting plate and trapezoidal plate to move towards each other; drive the lifting plate to move down through the cooperation of the trapezoidal guide block and the isosceles trapezoidal block, causing the pull rod and piston block to move down, so that a negative pressure adsorption fixing plate is formed in the hollow rotating disk;

[0044] S4, One-time bending execution: Continue to drive the second bidirectional lead screw so that the trapezoidal plate and the trapezoidal bending plate cooperate to drive it to move upward. The side of the trapezoidal bending plate cooperates with the bending module to complete the one-time bending of the plate.

[0045] S5. Secondary bending execution: The second connecting plate moves and contacts the plate through the U-shaped frame; as the U-shaped frame continues to move, the second bending plate moves towards the middle under the action of the inert gas in the sliding cavity and the first spring to complete the secondary bending.

[0046] S6. Three-fold bending execution: After the second bend, the second bending plate is stopped by the bending module; the U-shaped frame pushes the first bending plate to move through the fixed rod and fixed plate to complete the three-fold bending.

[0047] S7. Module Disassembly and Reset: After completing the bending of adjacent sides, loosen the countersunk bolts to disassemble the bending module; drive the second bidirectional lead screw to reverse so that the second connecting plate, U-shaped frame, trapezoidal plate, second bending plate and first bending plate are reset;

[0048] S8, Plate Rotation Control: Triggered when trapezoidal plate resets:

[0049] S81, the trapezoidal bending plate moves down and resets;

[0050] S82, a straight rack and pinion drive a spur gear to drive a one-way bearing, causing the hollow rotating disk to rotate 90° to change the direction of the plate;

[0051] S9. Bending the remaining edges: Reassemble the bending module; repeat steps S4 to S6 to bend the remaining two edges to form the finished box;

[0052] S10, Finished Product Separation and Reset: Drive the bending modules to move towards each other; separate the end blocks and splicing blocks to remove the finished product box; reassemble the bending modules to prepare for the next operation;

[0053] S11, Module Length Adjustment: The working length of the bending module can be adjusted by increasing or decreasing the number of splicing blocks to adapt to different lengths of sheet metal.

[0054] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0055] In this invention, a movable seat is threaded onto both the positive and negative thread sections of the first bidirectional lead screw. Both movable seats slide on the top inner wall of the gantry frame. The bottom of each movable seat is fixed with a first connecting plate by a cylinder. The two first connecting plates are respectively fixedly connected to corresponding bending modules on opposite sides. The cooperation between the first bidirectional lead screw and the movable seats controls the distance between the two bending modules, allowing the bending module to move to the bending position and cooperate with the trapezoidal bending plate, the second bending plate, and the first bending plate to complete three bending operations. No grooving is required during the bending process, thus ensuring the integrity of the bending point and increasing the lifespan of the finished box.

[0056] In this invention, the inner ring of the one-way bearing is fixedly connected to the outer wall of the rotating cylinder, and a spur gear is fixedly attached to the outer ring of the one-way bearing. A rack that meshes with the spur gear is slidably connected to the bottom of the workbench, and the rack is fixedly connected to one side of the adjacent trapezoidal plate. The second bidirectional screw rotates in the opposite direction, and the second connecting plate, U-shaped frame, trapezoidal plate, second bending plate, and first bending plate are reset and moved. The trapezoidal bending plate moves down to reset, releasing the obstruction to the bent plate. The trapezoidal plate drives the spur gear to rotate through the rack, and the spur gear drives the one-way bearing and the hollow rotating disk to rotate. Since the previous cooperation between the trapezoidal guide block and the isosceles trapezoidal block drives the lifting plate to move down, the hollow rotating disk adsorbs the plate. Therefore, the hollow rotating disk can drive the bent plate to rotate 90°, completing the reversal of the plate direction, and bending the other two sides of the plate, resulting in high bending efficiency.

[0057] In this invention, multiple trapezoidal plates are fixed to the sides of the two second connecting plates that are close to each other by bolts, and the trapezoidal plates slide on the bottom of the workbench. Two trapezoidal bending plates slide through the workbench. The second bidirectional screw drives the two second connecting plates to move towards the middle, and the second connecting plates simultaneously drive the trapezoidal plates to move towards the middle and cooperate with the trapezoidal bending plates. The cooperation between the trapezoidal plates and the trapezoidal bending plates drives the trapezoidal bending plates to move upward. One side of the trapezoidal bending plates cooperates with the side adjacent to the bending module to bend the sheet metal.

[0058] In this invention, a plurality of fixing rods are fixed on the side of the U-shaped frame near the bending module, and one end of each fixing rod is fixed to the same fixing plate. A second bending plate is slidably connected to the bottom of the fixing plate. A plurality of piston rods slide through the inner part of the T-shaped plate, and one end of each piston rod extends into a corresponding sliding cavity and is slidably and sealed to the sliding cavity. A first bending plate is fixed on the side of the fixing plate away from the U-shaped frame. After the trapezoidal bending plate completes the initial bending of the sheet material, the U-shaped frame continues to move towards the center, and the second bending plate moves towards the center to perform a second bending of the sheet material. Then, the first bending plate performs a second bending operation on the sheet material after the second bending. The bending process is simple and quick, requires no manual bending, and does not require grooving at the bending point during the bending process, thus avoiding cracks at the bending point after bending.

[0059] In this invention, by moving the two second connecting plates toward the center, the two sides of the sheet can be bent three times simultaneously. The bending process is simple to operate and has extremely high bending efficiency. In addition, there is no need to groove the area to be bent during bending, which ensures the integrity of the bent area after the bending operation is completed and increases the service life of the product. Attached Figure Description

[0060] Figure 1 This is a schematic diagram of the three-dimensional structure of the aluminum single-panel bending and forming device provided in one embodiment of the present invention before bending.

[0061] Figure 2 This is a three-dimensional exploded view of the workbench, bending module, and U-shaped frame of the aluminum single-panel bending and forming device provided in one embodiment of the present invention.

[0062] Figure 3 This is a schematic diagram of the three-dimensional structure of the aluminum single-panel bending and integral forming device provided in one embodiment of the present invention after bending.

[0063] Figure 4 This is a three-dimensional cross-sectional view of the bending module of the aluminum single-panel bending and forming device provided in one embodiment of the present invention.

[0064] Figure 5 This is a cross-sectional structural schematic diagram of the aluminum single-panel bending and integral forming device provided in one embodiment of the present invention.

[0065] Figure 6 This is a three-dimensional exploded view of the gantry frame, the movable seat, and the first connecting plate of the aluminum single-panel bending and integral forming device provided in one embodiment of the present invention.

[0066] Figure 7 This is a three-dimensional cross-sectional view of the worktable and the first bending plate of the aluminum single-panel bending integrated forming device provided in one embodiment of the present invention.

[0067] Figure 8 This is a three-dimensional exploded view of the rotating plate, lifting plate, and second fixed plate of the aluminum single-panel bending and forming device provided in one embodiment of the present invention.

[0068] Figure 9 This is a three-dimensional cross-sectional view of the U-shaped frame, the second bending plate, and the T-shaped plate of the aluminum single-panel bending and forming device provided in one embodiment of the present invention.

[0069] Figure 10 This is a three-dimensional structural diagram of the U-shaped frame, the second connecting plate, and the trapezoidal plate of the aluminum single-panel bending and forming device provided in one embodiment of the present invention.

[0070] Figure 11 This is a three-dimensional exploded view of the lifting plate, trapezoidal plate, rotating cylinder and hollow rotating disk of the aluminum single-panel bending and forming device provided in one embodiment of the present invention.

[0071] Figure 12 This is a three-dimensional exploded cross-sectional view of the rotating cylinder, one-way bearing, and spur gear of the aluminum single-panel bending and integral forming device provided in one embodiment of the present invention.

[0072] Figure 13 This is a three-dimensional structural diagram of the bending module of the aluminum single-panel bending and forming device provided in another embodiment of the present invention.

[0073] Figure 14 This is a three-dimensional exploded view of the end block and pin of the aluminum single-panel bending and forming device provided in another embodiment of the present invention.

[0074] Figure 15 for Figure 2 A diagram from another perspective.

[0075] In the diagram: 1. Workbench; 2. Gantry frame; 3. Finished product box; 4. Electric push rod; 5. Leveling plate; 6. First double-acting lead screw; 7. Moving seat; 8. Cylinder; 9. First connecting plate; 10. Bending module; 11. Guide rod; 12. Second double-acting lead screw; 13. Trapezoidal plate; 14. Trapezoidal bending plate; 15. Second connecting plate; 16. U-shaped frame; 17. Fixing rod; 18. Fixing plate; 19. First bending plate; 20. T-shaped plate; 21. Piston rod; 22. First spring; 23. Slide... 24. Moving cavity; 25. Second bending plate; 26. Circular groove; 27. Hollow rotating disk; 28. Rubber ring; 29. ​​Rotating cylinder; 30. One-way bearing; 31. Spur gear; 32. Spur rack; 33. Piston block; 34. Tie rod; 35. Lifting plate; 36. Sliding rod; 37. Second spring; 38. Chassis; 39. Isosceles trapezoidal block; 40. Trapezoidal guide block; 41. Limiting block; 42. End block; 43. Splicing block; 44. Pin rod; 45. Pin groove; 46. Countersunk bolt; 47. Plate. Detailed Implementation

[0076] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0077] In one embodiment: Refer to Figures 1-12 The forming device relates to the field of metal sheet bending technology. The device mainly includes a workbench 1, a gantry frame 2, a bending module 10, a bending structure, a rotating structure, and an adsorption structure.

[0078] Reference Figure 2 and Figure 15 The worktable 1 serves as the supporting foundation for the entire device, and its bottom is fixed with multiple support legs to place the worktable 1 stably on the ground. The top of the worktable 1 is provided with a circular groove 25 to accommodate the hollow rotating disk 26 in the rotating structure.

[0079] Reference Figure 1 , Figure 5 and Figure 6The gantry frame 2 is bolted to the top of the workbench 1, providing space for the installation and movement of the bending modules 10. A first bidirectional lead screw 6 is rotatably connected to the top inner wall of the gantry frame 2 via a base. Moving seats 7 are threaded onto both the forward and reverse threaded sections of the first bidirectional lead screw 6, and both moving seats 7 slide on the top inner wall of the gantry frame 2. By driving the first bidirectional lead screw 6 to rotate via a motor, the two moving seats 7 can be moved towards or away from each other, thereby adjusting the distance between the two bending modules 10. Multiple cylinders 8 are bolted to the bottom of each moving seat 7, and the bottom of the output shafts of the multiple cylinders 8 located on the same side is fixed to the same first connecting plate 9. The sides of the two first connecting plates 9 that are far apart from each other are respectively fixedly connected to the corresponding bending modules 10. By extending and retracting the cylinders 8, the bending modules 10 can be moved up and down, realizing the pressing and bending operation of the sheet metal 46.

[0080] Reference Figure 5 and Figure 10 A bending structure is installed inside the workbench 1 for bending the sheet metal 46. The bending structure includes a second bidirectional lead screw 12 that rotates below the workbench 1 via a base and a guide rod 11 that is fixed below the workbench 1 via a base. Second connecting plates 15 are threaded onto both the forward and reverse threaded sections of the second bidirectional lead screw 12, and both second connecting plates 15 are slidably fitted onto the outer wall of the guide rod 11. Driving the second bidirectional lead screw 12 to rotate via a motor can cause the two second connecting plates 15 to move towards or away from each other.

[0081] Reference Figure 5 and Figures 7-10 Multiple trapezoidal plates 13 are bolted to the sides of the two second connecting plates 15 that are close to each other, and the trapezoidal plates 13 slide on the bottom of the workbench 1. Two trapezoidal bending plates 14 slide through the workbench 1, and the trapezoidal plates 13 cooperate with the corresponding trapezoidal bending plates 14 to drive the trapezoidal bending plates 14 to move upward. When the trapezoidal plate 13 moves towards the middle, its inclined surface contacts the inclined surface of the trapezoidal bending plate 14, thereby pushing the trapezoidal bending plate 14 to move upward. One side of the trapezoidal bending plate 14 cooperates with the side adjacent to the bending module 10 to perform the initial bending of the sheet metal 46.

[0082] Reference Figure 5 and Figures 7-10Each of the two second connecting plates 15 has a U-shaped frame 16 fixed to its top. Both U-shaped frames 16 pass through the worktable 1 and are slidably connected to it. Multiple fixing rods 17 are fixed to the side of the U-shaped frame 16 near the bending module 10, and one end of each fixing rod 17 is fixed to the same fixing plate 18. A second bending plate 24 is slidably connected to the bottom of the fixing plate 18, and the outer wall of the multiple fixing rods 17 is fixedly fitted with the same T-shaped plate 20. Multiple piston rods 21 slide through the T-shaped plate 20, and the second bending plate 24 has multiple sliding cavities 23, which store inert gas. One end of each piston rod 21 extends into a corresponding sliding cavity 23 and is slidably connected to the cavity in a sealed manner. Multiple first springs 22 are provided between the T-shaped plate 20 and the second bending plate 24, and the first springs 22 are fitted onto the outer wall of the corresponding piston rod 21.

[0083] After the trapezoidal bending plate 14 completes the initial bending of the sheet 46, the U-shaped frame 16 continues to move towards the center. During this movement, the second bending plate 24 contacts the bent sheet 46 before the first bending plate 19. Because the sliding cavity 23 contains inert gas and the first spring 22 is compressed, as the U-shaped frame 16 continues to move, the second bending plate 24 moves towards the center under the action of the inert gas and the first spring 22, performing a secondary bending of the sheet 46. After the secondary bending is complete, the U-shaped frame 16 continues to move, while one end of the second bending plate 24 remains stationary due to the obstruction of the bending module 10. Therefore, during subsequent movement of the U-shaped frame 16, the first spring 22 is compressed, and the piston rod 21 compresses the inert gas in the sliding cavity 23. The U-shaped frame 16 then pushes the first bending plate 19 to move via the fixing rod 17 and the fixing plate 18, performing a second bending operation on the bent sheet 46. This completes the three-layer bending operation of the sheet 46.

[0084] Reference Figure 5 and Figures 7-9 A first bending plate 19 is fixed to the side of the fixing plate 18 away from the U-shaped frame 16, and the first bending plate 19 cooperates with the adjacent bending module 10 to perform three bends on the sheet 46. The bottom of the first bending plate 19 cooperates with the top of the bending module 10 to achieve precise bending of the sheet 46.

[0085] Reference Figure 2 , Figure 5 , Figure 7 , Figure 11 and Figure 12A rotating structure is installed within the workbench 1 to bend the sheet material 46 on two sides, then reverse the direction to bend the other two sides. The rotating structure includes a hollow rotating disk 26 that rotates within the workbench 1 and a rotating cylinder 28 fixed to the bottom of the hollow rotating disk 26. The hollow rotating disk 26 is located within a circular groove 25 and can rotate freely. The rotating structure also includes a one-way bearing 29 sleeved on the outer wall of the rotating cylinder 28, with its inner ring fixedly connected to the outer wall of the rotating cylinder 28. A spur gear 30 is fixedly attached to the outer ring of the one-way bearing 29. A rack 31, meshing with the spur gear 30, is slidably connected to the bottom of the workbench 1, and the rack 31 is fixedly connected to one side of an adjacent trapezoidal plate 13. When the trapezoidal plate 13 is reset, the rack 31 drives the spur gear 30 to rotate. Due to the function of the one-way bearing 29, when the spur gear 30 rotates, it drives the outer ring of the one-way bearing 29 to rotate, while the inner ring of the one-way bearing 29 is locked to the rotating cylinder 28. Therefore, the rotating cylinder 28 and the hollow rotating disk 26 rotate in one direction. In this way, the plate 46 can be rotated, which facilitates the precise bending of the other two sides of the plate 46 later.

[0086] Reference Figure 5 , Figure 7 , Figure 11 and Figure 12 An adsorption structure is incorporated within the bending structure to adsorb the sheet material 46 onto the hollow rotating disk 26, allowing the hollow rotating disk 26 to smoothly adjust the orientation of the sheet material 46. The adsorption structure includes a piston block 32 that slides within a rotating cylinder 28. The top of the rotating cylinder 28 is fixedly connected to the hollow rotating disk 26, and the bottom of the rotating cylinder 28 rotatably penetrates the worktable 1. A pull rod 33 is rotatably connected to the bottom of the piston block 32, and a lifting plate 34 is bolted to the bottom of the pull rod 33. Multiple sliding rods 35 slide through the lifting plate 34, with the tops of each sliding rod 35 fixedly connected to the bottom of the worktable 1, and a base plate 37 fixed to the bottom of each sliding rod 35. A second spring 36 is provided between the top of the base plate 37 and the bottom of the lifting plate 34, and the second spring 36 is sleeved on the outer wall of the sliding rod 35, used to drive the lifting plate 34 and the piston block 32 to move upwards and reset.

[0087] Reference Figure 5 , Figure 7 , Figure 11 and Figure 12An isosceles trapezoidal block 38 is bolted to the top of the lifting plate 34. A trapezoidal guide block 39 is fixed to the bottom of the trapezoidal plate 13 adjacent to the lifting plate 34. The trapezoidal guide block 39 cooperates with the isosceles trapezoidal block 38 to drive the lifting plate 34 and piston block 32 downward, so that the hollow rotating disk 26 is in a negative pressure state to adsorb the plate 46. When the trapezoidal plate 13 moves towards the middle, the trapezoidal guide block 39 contacts the inclined surface of the isosceles trapezoidal block 38, thereby pushing the lifting plate 34 downward and compressing the second spring 36. When the lifting plate 34 moves downward, it drives the pull rod 33 and piston block 32 downward, drawing air from the hollow rotating disk 26 into the rotating cylinder 28, so that the hollow rotating disk 26 is in a negative pressure state. In this way, the plate 46 can be adsorbed onto the hollow rotating disk 26, further fixing the hollow rotating disk 26.

[0088] Reference Figure 11 A limit block 40 is fixed to one end of the lifting plate 34 to limit the trapezoidal guide block 39 and prevent excessive movement of the trapezoidal guide block 39 that could damage the lifting plate 34. The top of the hollow rotating disk 26 has multiple through holes through which the plate 46 is adsorbed. Rubber rings 27 are fixed inside the through holes to increase the seal between the hollow rotating disk 26 and the plate 46, thereby improving the adsorption effect.

[0089] Reference Figure 5 and Figure 6 In addition, two electric push rods 4 are fixedly inserted inside the gantry frame 2. One end of the output shaft of each electric push rod 4 is fixed with a leveling plate 5, and the leveling plate 5 slides on the top of the worktable 1. Before bending, the electric push rods 4 push the leveling plate 5 to move, leveling the sheet material 46 to be bent, so that the sheet material 46 is located in the center of the worktable 1, which facilitates the subsequent bending operation.

[0090] Reference Figure 8 The top corner of one side of the trapezoidal bending plate 14 and the two corners on one side of the second bending plate 24 and the sliding cavity 23 are both arc-shaped, which is used to avoid scratching the plate 46 when bending the plate 46 and improve product quality.

[0091] In another embodiment: Reference Figure 13 and Figure 14The bending module 10 consists of two end blocks 41 and a splicing structure. The two end blocks 41 are located on both sides of the splicing structure, which is composed of multiple splicing blocks 42. Each splicing block 42 and one side of one of the end blocks 41 is fixed with two pins 43, and each splicing block 42 and the other side of the other end block 41 is provided with two pin slots 44. The pins 43 are inserted into adjacent pin slots 44, and countersunk bolts 45 are used to splice and fix adjacent splicing blocks 42, adjacent end blocks 41, and splicing blocks 42 together. This splicing structure allows the effective working length of the bending module 10 to be adjusted according to actual needs to adapt to the bending requirements of different sized sheet metal 46.

[0092] The forming method of the aluminum single-panel bending and forming device includes the following steps:

[0093] S1. First, the workbench 1 is placed on the ground by the support legs. Then, the cut board 46 is placed on the workbench 1, and the board 46 is located on the top of the hollow rotating disk 26. The electric push rod 4 pushes the straightening plate 5 to move towards the center. The two straightening plates 5 are used to calibrate and center the board 46 at the center of the workbench 1. Then, the motor drives the first bidirectional lead screw 6 to rotate. The first bidirectional lead screw 6 drives the two moving seats 7 to move towards each other until the two bending modules 10 move to the position to be bent on the board 46. Then, the cylinder 8 drives the bending module 10 to move down through the first connecting plate 9. The bending module 10 presses the board 46 to prevent the board 46 from shifting during the later bending process.

[0094] S2. During bending, the second bidirectional lead screw 12 is driven to rotate by the motor. The second bidirectional lead screw 12 drives the two second connecting plates 15 to move towards the middle. The second connecting plates 15 simultaneously drive the trapezoidal plate 13 to move. The trapezoidal plate 13 drives the lifting plate 34 to move down and compress the second spring 36 through the cooperation of the trapezoidal guide block 39 and the isosceles trapezoidal block 38. This can drive the pull rod 33 and the piston block 32 to move down, drawing the air in the hollow rotating disk 26 into the rotating cylinder 28. The hollow rotating disk 26 is in a negative pressure state, which can attract the plate 46 to the hollow rotating disk 26, further fixing the hollow rotating disk 26.

[0095] S3. Next, the trapezoidal plate 13 continues to move towards the center and cooperates with the trapezoidal bending plate 14. The cooperation between the trapezoidal plate 13 and the trapezoidal bending plate 14 drives the trapezoidal bending plate 14 to move upward. One side of the trapezoidal bending plate 14 cooperates with the side adjacent to the bending module 10 to bend the plate 46. Then, the second connecting plate 15 continues to drive the fixing rod 17, fixing plate 18, first bending plate 19 and second bending plate 24 to move through the U-shaped frame 16. During the movement, the second bending plate 24 touches the bent plate 46 before the first bending plate 19. Therefore, when the U-shaped frame 16 continues to move, the inert gas in the sliding cavity 23 and the first spring of the second bending plate 24... Under the action of 22, it moves towards the middle and performs a second bend on the plate 46. After the second bend is completed, the U-shaped frame 16 continues to move, while one end of the second bending plate 24 is blocked by the bending module 10 and remains stationary. Therefore, during the subsequent movement of the U-shaped frame 16, the first spring 22 is compressed, the piston rod 21 compresses the inert gas in the sliding cavity 23, and the U-shaped frame 16 pushes the first bending plate 19 to move through the fixing rod 17 and the fixing plate 18, and performs a bend operation on the plate 46 after the second bend. The bending process is simple and quick, without the need for manual bending, and there is no need to cut grooves at the bending point during the bending process, avoiding cracks at the bending point after bending.

[0096] S4. After bending two sides of the sheet material 46, loosen the countersunk bolts 45 to release the assembly between the end block 41 and the multiple splicing blocks 42, disassemble the bending module 10, and then the second bidirectional lead screw 12 rotates in the opposite direction. The second connecting plate 15, U-shaped frame 16, trapezoidal plate 13, second bending plate 24, and first bending plate 19 move back to their original positions. When the trapezoidal plate 13 is reset and the brake on the trapezoidal bending plate 14 is released, the trapezoidal bending plate 14 moves down to its original position, releasing the obstruction to the bent sheet material 46. The trapezoidal plate 13 drives the spur gear 30 to rotate through the rack 31. The spur gear 30 drives the one-way bearing 29 to rotate. The one-way bearing 29 is locked to the rotating cylinder 28 at this time, thus driving the hollow rotating disk 26 to rotate. Since the trapezoidal guide block 39 and the isosceles trapezoidal block 38 previously cooperated to drive the lifting plate 34 to move down, the hollow rotating disk 26 adsorbs the plate 46. Therefore, the hollow rotating disk 26 can drive the bent plate 46 to rotate 90°, completing the reversal of the plate 46. Then the bending module 10 is reassembled, and then the other two sides of the plate 46 are bent. The plate 46 after bending on all four sides forms the finished box 3.

[0097] S5. After bending is completed, reset the second connecting plate 15, trapezoidal plate 13, second bending plate 24, trapezoidal bending plate 14 and first bending plate 19, then drive the two bending modules 10 to move towards the middle, then loosen the countersunk bolts 45, disassemble the multiple end blocks 41 and multiple splicing blocks 42, and take them out from the finished product box 3, thereby completing the separation of the finished product box 3 and the bending module 10. After that, the bending module 10 can be reassembled to bend the next sheet 46. In addition, by increasing or decreasing the number of splicing blocks 42, the effective working length of the bending module 10 can be controlled, thereby adapting to the bending of sheet 46 of different lengths.

[0098] The accompanying drawings in this application are for illustrative purposes only. The dimensions and shapes of the components shown are not actual limitations but are merely schematic representations. In actual implementation, the components can be reasonably configured and adjusted according to specific needs and actual conditions.

[0099] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. An integrated bending and forming device for aluminum single panels, characterized in that, include: The workbench (1) has a gantry frame (2) fixedly installed on its top, and adjustable bending modules (10) are symmetrically arranged inside the gantry frame (2). The bending structure includes: Two trapezoidal bent plates (14) slide through the workbench (1). The second bending plate (24) and the first bending plate (19) are located above the workbench (1). A bidirectional transmission mechanism that drives the trapezoidal bending plate (14), the second bending plate (24) and the first bending plate (19) to move synchronously; The rotating structure includes a hollow rotating disk (26) rotatably disposed in the workbench (1) and a rotating cylinder (28) connected thereto, which is used to drive the bent plate (46) to rotate 90°. The adsorption structure includes a vacuum generating device linked to the bidirectional transmission mechanism, used to create a negative pressure in the hollow rotating disk (26) to fix the plate (46). The bending module (10) forms a three-level bending cooperation with the trapezoidal bending plate (14), the second bending plate (24), and the first bending plate (19). The bidirectional transmission mechanism drives the three-level bending sequence through a single linear motion, and the plate (46) is kept in a fixed state through the adsorption structure during the bending process. The bidirectional transmission mechanism includes: The second bidirectional lead screw (12) is rotatably mounted below the worktable (1) via a base; The guide rod (11) is fixedly installed parallel to the second bidirectional lead screw (12); Two second connecting plates (15) are respectively threaded onto the positive and negative thread sections of the second bidirectional screw (12) and slidably mounted on the guide rod (11). Multiple trapezoidal plates (13) are fixed to the second connecting plate (15) and slide on the bottom of the workbench (1), and their inclined surfaces form a lifting fit with the trapezoidal bending plate (14); Two U-shaped frames (16) are fixed to the top of the second connecting plate (15) and pass through the workbench (1). The second bending plate (24) is driven to perform elastic compression bending and the first bending plate (19) is driven to perform rigid bending in sequence along its movement path. The second bending plate (24) is connected to the U-shaped frame (16) via a gas-liquid buffer mechanism, and includes: A fixed plate (18) is connected to a U-shaped frame (16) via a fixed rod (17); a T-shaped plate (20) is fixedly sleeved on the fixed rod (17); multiple piston rods (21) slide through the T-shaped plate (20) and seal the sliding cavity (23) of the second bending plate (24); a first spring (22) is sleeved around the piston rod (21); The sliding cavity (23) is filled with inert gas to form a variable damping secondary bending force control mechanism.

2. The aluminum single-panel bending and forming device according to claim 1, characterized in that, The adsorption structure comprises: The piston block (32) is sealed and slides inside the rotating cylinder (28) and is connected to the lifting plate (34) via the pull rod (33); the sliding rod (35) passes vertically through the lifting plate (34) and is fixed to the bottom of the worktable (1); the second spring (36) is sleeved around the sliding rod (35) and provides a reset elastic force; the isosceles trapezoidal block (38) and the trapezoidal guide block (39) are fixed to the lifting plate (34) and the trapezoidal plate (13) respectively, forming an inclined surface drive cooperation; The movement of the trapezoidal plate (13) is achieved by pressing the trapezoidal guide block (39) against the isosceles trapezoidal block (38), which drives the piston block (32) to move downward to draw in and form a negative pressure.

3. The aluminum single-panel bending and forming device according to claim 2, characterized in that, The rotating structure includes: One-way bearing (29), whose inner ring is fixedly sleeved with rotating cylinder (28); spur gear (30), fixed to the outer ring of one-way bearing (29); spur rack (31), fixed to trapezoidal plate (13) and meshing with spur gear (30); When the trapezoidal plate (13) is reset and moved, the spur gear (30) is driven by the rack (31) to lock the rotation of the one-way bearing (29), thereby realizing the 90° one-way rotation of the hollow rotating disk (26).

4. The aluminum single-panel bending and forming device according to claim 3, characterized in that, The bending module (10) includes: The first bidirectional lead screw (6) is rotatably mounted on the inner wall of the top of the gantry frame (2); two movable seats (7) are respectively threaded onto the positive and negative thread sections of the first bidirectional lead screw (6) and slide on the inner wall of the top of the gantry frame (2); the cylinder (8) is fixed to the movable seat (7) and connected to the bending module (10) through the first connecting plate (9). The bottom and top edges of the bending module (10) respectively form bending guide surfaces that cooperate with the trapezoidal bending plate (14) and the second bending plate (24).

5. The aluminum single-panel bending and forming device according to claim 4, characterized in that, Also includes: Electric push rods (4) are symmetrically fixed on both sides of the gantry frame (2); a leveling plate (5) is connected to the output shaft of the electric push rods (4) and slides on the top of the worktable (1); The moving path of the regularizing plate (5) is perpendicular to the axis of the first bidirectional lead screw (6), forming a plate centering positioning mechanism.

6. The aluminum single-panel bending and forming device according to claim 5, characterized in that, The bending module (10) is a detachable splicing structure, comprising: Two end blocks (41) are set at both ends of the structure; multiple splicing blocks (42) are connected to the end blocks (41) by the insertion of pins (43) and pin slots (44); countersunk bolts (45) are threaded through the splicing blocks (42) and end blocks (41) to achieve fixation; The effective length of the bending module (10) is adjusted by increasing or decreasing the number of splicing blocks (42).

7. The aluminum single-panel bending and forming device according to claim 6, characterized in that, The bend corner of the trapezoidal bending plate (14) and the edge of the second bending plate (24) are provided with arc-shaped transition surfaces, the radius of curvature of which is 1.5 to 2 times greater than the thickness of the plate (46).

8. A forming method based on the aluminum single-panel bending integrated forming device according to claim 7, characterized in that, Includes the following steps: S1. Placement and positioning of the board: Place the board (46) on the top of the hollow rotating disk (26) above the workbench (1); drive the electric push rod (4) to push the two regular boards (5) to move towards each other, calibrate and center the board (46) at the center of the workbench (1); S2, Bending module positioning and pre-pressing: Drive the first bidirectional lead screw (6) to rotate, drive the two moving seats (7) to move towards each other, so that the bending module (10) moves to the bending position of the plate (46); drive the cylinder (8) through the first connecting plate (9) to drive the bending module (10) to move down and press the plate (46). S3, Negative pressure adsorption fixation: Drive the second bidirectional screw (12) to rotate, causing the second connecting plate (15) and trapezoidal plate (13) to move towards each other; drive the lifting plate (34) to move down through the cooperation of trapezoidal guide block (39) and isosceles trapezoidal block (38), causing the pull rod (33) and piston block (32) to move down, so that a negative pressure adsorption fixation plate (46) is formed in the hollow rotating disk (26); S4, One-time bending execution: Continue to drive the second bidirectional lead screw (12) so that the trapezoidal plate (13) and the trapezoidal bending plate (14) cooperate to drive it to move upward. The side of the trapezoidal bending plate (14) cooperates with the bending module (10) to complete the one-time bending of the plate (46); S5, Secondary bending execution: The second connecting plate (15) drives the second bending plate (24) to move and contact the plate (46) through the U-shaped frame (16); when the U-shaped frame (16) continues to move, the second bending plate (24) moves towards the middle under the action of the inert gas in the sliding cavity (23) and the first spring (22) to complete the secondary bending; S6, Three-fold bending execution: After the second bend, the second bending plate (24) is blocked and stationary by the bending module (10); the U-shaped frame (16) pushes the first bending plate (19) to move through the fixed rod (17) and the fixed plate (18) to complete the three-fold bending; S7. Module disassembly and resetting: After completing the bending of adjacent sides, loosen the countersunk bolt (45) to disassemble the bending module (10); drive the second bidirectional lead screw (12) to reverse so that the second connecting plate (15), U-shaped frame (16), trapezoidal plate (13), second bending plate (24) and first bending plate (19) are reset. S8, Plate Steering Control: Triggered when trapezoidal plate (13) is reset: S81, the trapezoidal bending plate (14) moves down and resets; S82, the rack (31) drives the spur gear (30) to drive the one-way bearing (29), so that the hollow rotating disk (26) rotates 90° to change the direction of the plate (46); S9. Bending the remaining sides: Reassemble the bending module (10); Repeat steps S4 to S6 to bend the remaining two sides to form the finished box (3). S10, Finished Product Separation and Reset: Drive the bending module (10) to move towards each other; split the end block (41) and splicing block (42) to remove the finished product box (3); reassemble the bending module (10) to prepare for the next operation; S11, Module length adjustment: Adjust the working length of the bending module (10) by increasing or decreasing the number of splicing blocks (42) to adapt to different lengths of boards (46).

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