Precise bending device for thin-wall aluminum plate

Abstract

The invention discloses a precise bending device for a thin-wall aluminum plate, and relates to the field of aluminum plate bending, the precise bending device comprises a base, a bending mechanism and a correction conveying mechanism, a fixing frame is fixedly connected to the base, a bending table fixedly connected with the base is arranged at one end of the fixing frame, and a portal frame is arranged on the outer side face of the bending table; a laser range finder is mounted on the portal frame; the bending mechanism comprises a moving frame installed in the portal frame, the outer side face of the moving frame is fixedly connected with a pressing frame, the end of the moving frame is connected with a moving assembly connected with the portal frame, and a plate bending assembly is installed on the pressing frame and used for bending a pressed plate. The plate can be automatically conveyed and bent through the correcting and conveying mechanism and the bending mechanism, a large amount of manpower does not need to be input while the bending precision is improved, and then the problems that in the prior art, manpower input is too large and the precision is difficult to control due to the fact that at least two persons need to cooperate for plate bending are solved.

Description

Technical Field

[0001] The present invention relates to the technical field, and specifically to a precision bending device for thin-walled aluminum plates. Background Art

[0002] Aluminum products are made of aluminum and other alloy elements. Usually, they are first processed into castings, forgings, foils, plates, strips, tubes, rods, profiles, etc., and then processed through cold bending, sawing, drilling, assembling, coloring and other processes. The main metal element is aluminum, plus some alloy elements to improve the performance of aluminum products.

[0003] Currently, in the process of production and manufacturing, it is necessary to bend aluminum plates according to corresponding drawings so that the aluminum plates can be bent into appropriate models. In the process of bending aluminum plates, the traditional operation method is to work in cooperation with at least two people. The two people carry the plate to the bending machine, and then place the bending part at the position of the bending blade. Since there is no positioning mechanism in the process, the bending position of the plate completely depends on the manual alignment with the bending blade, which easily leads to low precision of plate bending. At the same time, in the operation process, due to the cooperation of multiple people, the labor input is too large. For this reason, we propose a precision bending device for thin-walled aluminum plates. Summary of the Invention

[0004] The purpose of the present invention is to provide a precision bending device for thin-walled aluminum plates to solve the problems raised in the above background art.

[0005] To achieve the above purpose, the present invention provides the following technical solution: A precision bending device for thin-walled aluminum plates, including a base, a fixed frame fixedly connected to the base, a plurality of conveying rollers rotatably connected to the fixed frame, and a bending table fixedly connected to the base at one end of the fixed frame. A gantry is arranged on the outer side of the bending table, and a laser rangefinder is installed on the gantry; further including: a bending mechanism, the bending mechanism includes a moving frame installed inside the gantry, a pressing frame fixedly connected to the outer side of the moving frame, and an end of the moving frame is connected to a moving component connected to the gantry. The moving component is used to drive the moving frame and the pressing frame to move, thereby pressing the plate. A bending plate component is installed on the pressing frame, and the bending plate component is used to bend the pressed plate; a correction and conveying mechanism is installed inside the moving frame, and the correction and conveying mechanism is used to correct and convey the plate.

[0006] Preferably, the correction and conveying mechanism includes a plurality of correction rollers rotatably installed inside the moving frame. A plurality of extrusion sheets are arranged on the outer side surface of the correction roller. An expansion assembly for driving the extrusion sheets to expand simultaneously to extrude plates with different thicknesses is connected to the extrusion sheets. A first spur gear is fixedly connected to the correction roller. A gear belt meshes with the outer sides of the plurality of first spur gears. A second spur gear meshes with the gear belt. The axis of the second spur gear is connected to a driving assembly installed inside the moving frame.

[0007] Preferably, the expansion assembly includes a fixed ring fixed inside the correction roller. A sleeve is fixedly connected to the fixed ring. Two symmetrically arranged sliding blocks are slidably connected inside the sleeve. A tension spring is fixedly connected between the two sliding blocks. A sliding rod is fixedly connected to the sliding block. A plurality of connecting plates are fixedly connected to the sliding rod. A plurality of first inclined blocks are fixedly connected to the connecting plates. A second inclined block is arranged on the hypotenuse of the first inclined block. The hypotenuses of the first inclined block and the second inclined block are in contact with each other. The first inclined block and the second inclined block are slidably connected. The plurality of second inclined blocks are respectively fixedly connected to the plurality of extrusion sheets. The second inclined block is slidably connected to the correction roller. An air conveying member extending into the sleeve is installed inside the sliding rod.

[0008] Preferably, the air conveying member includes an air hood fixedly connected to the pressing frame. An air wheel connected to the driving assembly is installed inside the air hood. An exhaust valve is further connected to the air hood. A connecting member extending into the sleeve is connected to the air hood.

[0009] Preferably, the connecting member includes a connecting pipe communicating with the air hood. The end of the connecting pipe communicates with a docking pipe. The end of the docking pipe communicates with a shunt pipe. A plurality of connecting pipes communicate with the shunt pipe. The end of the connecting pipe communicates with an air inlet pipe. The air inlet pipe penetrates through the correction roller and the sliding rod and extends into the sleeve.

[0010] Preferably, the bent plate assembly includes a fixed seat fixedly connected to the pressing frame. A rotating shaft is rotatably connected to the fixed seat. A bending plate is fixedly connected to the rotating shaft. A quarter gear is fixedly connected to the end of the rotating shaft. A first torsion spring is fixedly connected between the quarter gear and the fixed seat. A third spur gear meshes with the outer side of the quarter gear. A transmission member connected to the driving assembly is fixedly connected to the axis of the third spur gear.

[0011] Preferably, the driving assembly includes a motor fixed inside the moving frame. The output end of the motor is fixedly connected to a driving shaft. The driving shaft penetrates through the moving frame and the wind cover, and is rotatably connected to the moving frame and the wind cover. The driving shaft is also fixedly connected to the wind wheel. A rotating sleeve fixedly connected to the second spur gear is rotatably connected to the outer side of the driving shaft. The rotating sleeve is rotatably connected to the moving frame, and a rotating plate is fixedly connected to the end of the rotating sleeve. A ratchet gear is rotatably connected to the rotating plate. A ratchet pawl is engaged with the outer side of the ratchet gear. A rotating column fixedly connected to the ratchet pawl is rotatably connected to the rotating plate. A second torsion spring fixedly connected to the rotating plate is fixedly connected to the rotating column.

[0012] Preferably, the transmission member includes a driving wheel fixedly connected to the driving shaft. A belt is drivingly connected to the outer side of the driving wheel. A driven wheel is drivingly connected to the belt. A transmission shaft fixedly connected to the third spur gear is fixedly connected to the axis of the driven wheel. The transmission shaft is rotatably connected to the pressing frame.

[0013] Preferably, the moving assembly includes an electric telescopic rod fixedly connected to the gantry. The telescopic end of the electric telescopic rod is fixedly connected to a moving rod fixedly connected to the moving frame. A moving sleeve is sleeved on the outer side of the moving rod. A first spring fixedly connected to the moving rod is fixedly connected inside the moving sleeve.

[0014] Preferably, a connecting rod is fixedly connected to the end of the moving frame. The connecting rod penetrates through the gantry, and the connecting rod is slidably connected to the gantry. A fixing piece is fixedly connected to the connecting rod. A second spring fixedly connected to the gantry is fixedly connected to the fixing piece.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: A precision bending device for thin-walled aluminum plates provided by the present invention, by providing a bending mechanism and a correction and conveying mechanism, during the process of bending the plate, the plate is corrected by the provided correction and conveying mechanism to avoid bending and affecting the bending precision of the plate. And during the correction process, the automatic conveying of the plate is completed, so that the plate is automatically conveyed to the bending position. Then, through the moving assembly provided in the bending mechanism, the pressing frame moves to press the plate. After pressing, the plate is bent by the rotation of the bending plate. Thus, through the correction and conveying mechanism and the bending mechanism, the plate can be automatically conveyed and bent, improving the bending precision without the need to invest a large amount of manpower. Therefore, the problem that the bending of the plate in the prior art requires at least two people to cooperate, resulting in excessive manpower investment and difficult precision control, is solved. Description of the Drawings

[0016] Figure 1Schematic diagram of the overall structure of the present invention; Figure 2 Schematic diagram of the cross-sectional structure of the gantry of the present invention; Figure 3 Schematic diagram of the connection structure between the bending mechanism and the straightening and conveying mechanism of the present invention; Figure 4 Schematic diagram of the straightening and conveying mechanism of the present invention; Figure 5 Schematic diagram of the expansion structure of the extrusion sheet of the present invention; Figure 6 For the present invention Figure 5 Schematic diagram of the structure of area A in the present invention; Figure 7 Schematic diagram of the air delivery part of the present invention; Figure 8 For the present invention Figure 7 Schematic diagram of the structure of area B in the present invention; Figure 9 Schematic diagram of the structure of the bending plate assembly of the present invention; Figure 10 For the present invention Figure 9 Schematic diagram of the structure of area C in the present invention; Figure 11 Schematic diagram of the structure of the driving assembly of the present invention; Figure 12 For the present invention Figure 11 Schematic diagram of the structure of area D in the present invention; Figure 13 Schematic diagram of the bending structure of the bending plate and the sheet material in the present invention; Figure 14 Schematic diagram of the structure of the moving assembly of the present invention.

[0017] In the figure: 1, base; 2, fixing frame; 3, conveying roller; 4, bending table; 5, gantry; 6, laser rangefinder; 7, bending mechanism; 8, moving frame; 9, pressing frame; 10, moving component; 11, bending plate component; 12, rectifying conveying mechanism; 13, rectifying roller; 14, extrusion piece; 15, expanding component; 16, first flat gear; 17, gear belt; 18, second flat gear; 19, driving component; 20, second inclined block; 21, first inclined block; 22, connecting plate; 23, sliding rod; 24, sliding block; 25, sleeve; 26, fixing ring; 27, air conveying part; 28, air hood; 29, air wheel; 30, exhaust valve; 31, connecting part; 32, connecting pipe; 33, docking pipe; 34, shunt pipe; 35, connecting pipe; 36, air inlet pipe; 37, fixing seat; 38, rotating shaft; 39, bending plate; 40, first torsion spring; 41, 1 / 4 gear; 42, third flat gear; 43, transmission part; 44, motor; 45, driving shaft; 46, rotating sleeve; 47, rotating plate; 48, ratchet gear; 49, ratchet pawl; 50, rotating column; 51, second torsion spring; 52, driving wheel; 53, belt; 54, driven wheel; 55, transmission shaft; 56, electric telescopic rod; 57, moving rod; 58, moving sleeve; 59, first spring; 60, connecting rod; 61, fixing piece; 62, second spring; 63, tension spring. Detailed implementation manners

[0018] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0019] Please refer to Figures 1 - 14, the present invention provides a technical solution: a precision bending device for thin-walled aluminum plates, including a base 1, a fixing frame 2 is fixedly connected to the base 1, a plurality of conveying rollers 3 are rotatably connected to the fixing frame 2, and one end of the fixing frame 2 is provided with a bending table 4 fixedly connected to the base 1. A gantry 5 is arranged on the outer side of the bending table 4, and a laser rangefinder 6 is installed on the gantry 5; it further includes: a bending mechanism 7, the bending mechanism 7 includes a moving frame 8 installed inside the gantry 5, a pressing frame 9 is fixedly connected to the outer side of the moving frame 8, and an end of the moving frame 8 is connected to a moving component 10 connected to the gantry 5. The moving component 10 is used to drive the moving frame 8 and the pressing frame 9 to move, thereby pressing the plate. A bending plate component 11 is installed on the pressing frame 9, and the bending plate component 11 is used to bend the pressed plate; a correction and conveying mechanism 12, the correction and conveying mechanism 12 is installed inside the moving frame 8, and the correction and conveying mechanism 12 is used to correct the plate and convey it.

[0020] Please refer to Figures 3 - 5 , the illustrated correction and conveying mechanism 12 includes a plurality of correction rollers 13 rotatably installed inside the moving frame 8. A plurality of extrusion pieces 14 are arranged on the outer side of the correction rollers 13. An expansion component 15 for driving the extrusion pieces 14 to expand simultaneously and extrude plates of different thicknesses is connected to the extrusion pieces 14. A first spur gear 16 is fixedly connected to the correction roller 13. A gear belt 17 is meshed on the outer sides of the plurality of first spur gears 16. A second spur gear 18 is meshed with the gear belt 17. The axis of the second spur gear 18 is connected to a driving component 19 installed inside the moving frame 8.

[0021] Please refer to Figures 5 - 8 , the illustrated expansion component 15 includes a fixed ring 26 fixed inside the correction roller 13. A sleeve 25 is fixedly connected to the fixed ring 26. Two symmetrically arranged sliding blocks 24 are slidably connected inside the sleeve 25. A tension spring 63 is fixedly connected between the two sliding blocks 24. A sliding rod 23 is fixedly connected to the sliding block 24. A plurality of connecting plates 22 are fixedly connected to the sliding rod 23. A plurality of first inclined blocks 21 are fixedly connected to the connecting plates 22. The hypotenuse of the first inclined block 21 is provided with a second inclined block 20. The hypotenuses of the first inclined block 21 and the second inclined block 20 are in contact with each other, and the first inclined block 21 and the second inclined block 20 are slidably connected. A plurality of the second inclined blocks 20 are respectively fixedly connected to a plurality of the extrusion pieces 14, and the second inclined block 20 is slidably connected to the correction roller 13. An air conveying member 27 extending into the sleeve 25 is installed inside the sliding rod 23.

[0022] Please refer to Figure 7 andFigure 8 As shown in the figure, the gas delivery member 27 in the illustration includes a wind hood 28 fixedly connected to the pressing frame 9. A wind wheel 29 connected to the driving assembly 19 is installed inside the wind hood 28. An exhaust valve 30 is also connected to the wind hood 28. A connecting member 31 extending into the inside of the sleeve 25 is communicated with the wind hood 28.

[0023] Please refer to Figure 5 and Figure 7 As shown in the figure, the connecting member 31 in the illustration includes a connecting pipe 32 communicated with the wind hood 28. A docking pipe 33 is communicated with the end of the connecting pipe 32. A shunt pipe 34 is communicated with the end of the docking pipe 33. A plurality of connecting pipes 35 are communicated with the shunt pipe 34. An intake pipe 36 is communicated with the end of the connecting pipe 35. The intake pipe 36 penetrates through the correction roller 13 and the sliding rod 23 and extends into the inside of the sleeve 25.

[0024] Please refer to Figure 9 and Figure 10 As shown in the figure, the bent plate assembly 11 in the illustration includes a fixed seat 37 fixedly connected to the pressing frame 9. A rotating shaft 38 is rotatably connected to the fixed seat 37. A bent plate 39 is fixedly connected to the rotating shaft 38. A quarter gear 41 is fixedly connected to the end of the rotating shaft 38. A first torsion spring 40 is fixedly connected between the quarter gear 41 and the fixed seat 37. A third spur gear 42 is meshed with the outer side of the quarter gear 41. A transmission member 43 connected to the driving assembly 19 is fixedly connected to the axis center of the third spur gear 42.

[0025] Please refer to Figure 11 and Figure 12 As shown in the figure, the driving assembly 19 in the illustration includes a motor 44 fixed inside the moving frame 8. A driving shaft 45 is fixedly connected to the output end of the motor 44. The driving shaft 45 penetrates through the moving frame 8 and the wind hood 28 and is rotatably connected to the moving frame 8 and the wind hood 28. The driving shaft 45 is also fixedly connected to the wind wheel 29. A rotating sleeve 46 fixedly connected to the second spur gear 18 is rotatably connected to the outer side of the driving shaft 45. The rotating sleeve 46 is rotatably connected to the moving frame 8. A rotating plate 47 is fixedly connected to the end of the rotating sleeve 46. A ratchet gear 48 is rotatably connected to the rotating plate 47. A ratchet pawl 49 is meshed with the outer side of the ratchet gear 48. A rotating column 50 fixedly connected to the ratchet pawl 49 is rotatably connected to the rotating plate 47. A second torsion spring 51 fixedly connected to the rotating plate 47 is fixedly connected to the rotating column 50.

[0026] Please refer to Figure 11 and Figure 12, in the figure, the transmission member 43 includes a driving wheel 52 fixedly connected to the driving shaft 45. The outer side surface of the driving wheel 52 is drivingly connected to a belt 53. A driven wheel 54 is drivingly connected to the belt 53. The axis of the driven wheel 54 is fixedly connected to a transmission shaft 55 fixedly connected to the third spur gear 42. The transmission shaft 55 is rotatably connected to the pressing frame 9.

[0027] Please refer to Figure 3 and Figure 14 , in the figure, the moving assembly 10 includes an electric telescopic rod 56 fixedly connected to the gantry 5. The telescopic end of the electric telescopic rod 56 is fixedly connected to a moving rod 57 fixedly connected to the moving frame 8. A moving sleeve 58 is sleeved on the outer side surface of the moving rod 57. A first spring 59 fixedly connected to the moving rod 57 is fixedly connected inside the moving sleeve 58.

[0028] Please refer to Figure 14 , the end of the moving frame 8 in the figure is fixedly connected to a connecting rod 60. The connecting rod 60 penetrates through the gantry 5, and the connecting rod 60 is slidably connected to the gantry 5. A fixing piece 61 is fixedly connected to the connecting rod 60. A second spring 62 fixedly connected to the gantry 5 is fixedly connected to the fixing piece 61.

[0029] Working principle: When bending the plate, place the plate on the conveying roller 3, then push the plate to the bending plate 39 so that the end of the plate fits the bending plate 39. Then start the motor 44. By starting the motor 44, the driving shaft 45 drives the wind wheel 29 to rotate. The wind force generated by the rotation of the wind wheel 29 is conveyed to the inside of the sleeve 25 through the connecting pipe 32, the docking pipe 33, the shunt pipe 34, the communicating pipe 35 and the air inlet pipe 36, so that the air pressure inside the sleeve 25 increases. Due to the action of the air pressure, the two sliding blocks 24 drive the sliding rod 23 to move. The movement of the sliding rod 23 drives the connecting plate 22 to move. The movement of the connecting plate 22 makes the first inclined block 21 move. The extrusion of the first inclined block 21 on the second inclined block 20 makes the second inclined block 20 move. The movement of the second inclined block 20 makes the extrusion pieces 14 on the outer side surface of the straightening roller 13 spread outwards simultaneously to extrude the plate; Specifically, after the extrusion piece 14 fits the plate, the extrusion piece 14 will not move any further. At this time, the air pressure inside the sleeve 25 will not change, and the wind force continuously generated by the rotation of the wind wheel 29 will be discharged through the exhaust valve 30 and will not continue to enter the sleeve 25; Among them, the rotation of the drive shaft 45 will cause the ratchet gear 48 to rotate. At this time, the ratchet gear 48 will engage with the pawl 49 to drive the rotation plate 47 to rotate. The rotation of the rotation plate 47 causes the rotation sleeve 46 to drive the second spur gear 18 to rotate. The rotation of the second spur gear 18 causes the gear belt 17 to drive multiple first spur gears 16 to rotate. Further, multiple straightening rollers 13 drive the extrusion sheet 14 to rotate. The extrusion between the extrusion sheet 14 and the sheet material corrects the sheet material and conveys the sheet material. Through this design, the extrusion sheet 14 can expand outwards, so that the extrusion sheet 14 can extrude and convey sheets of different thicknesses; Further, during the rotation of the drive shaft 45, the rotation of the drive shaft 45 will also drive the driving wheel 52 to rotate. The rotation of the driving wheel 52 drives the belt 53 to rotate. The belt 53 causes the driven wheel 54 to drive the transmission shaft 55 to rotate. Further, the rotation of the transmission shaft 55 drives the third spur gear 42 to rotate, and then drives the 1 / 4 gear 41 to rotate 90 degrees. The rotation of the 1 / 4 gear 41 causes the rotating shaft 38 to drive the bending plate 39 to rotate, so that the bending plate 39 rotates to be parallel to the bending table 4, thus not affecting the normal conveyance of the sheet material; Among them, when the sheet material is conveyed by the rotation of the extrusion sheet 14, the installed infrared rangefinder measures the conveyed length of the sheet material. When the sheet material is conveyed to the specified length, the motor 44 stops moving at this time. At this time, gas is no longer conveyed inside the sleeve 25. Further, the two sliding blocks 24 drive the sliding rod 23 to reset under the action of the tension spring 63. Further, the connecting plate 22 drives the first inclined block 21 to reset. The reset of the first inclined block 21 causes the second inclined block 20 to reset, and further causes the extrusion sheet 14 to reset and fit the straightening roller 13; Further, after the extrusion sheet 14 is reset, the electric telescopic rod 56 is started. The electric telescopic rod 56 drives the moving rod 57 and the moving sleeve 58 to move downward. The downward movement of the moving sleeve 58 drives the moving frame 8 and the pressing frame 9 to move downward. After the pressing frame 9 moves downward, it will press the sheet material. At this time, the bending plate 39 just fits the sheet material. The continuous downward movement of the electric telescopic rod 56 will squeeze the first spring 59, so that the pressing frame 9 exerts a greater pressure on the sheet material, thereby improving the stability of the sheet material pressing and avoiding the displacement of the sheet material during the bending of the sheet material. After that, by controlling the reverse rotation of the motor 44, the drive shaft 45 will drive the driving wheel 52 to reverse at this time. Further, the driving wheel 52 drives the belt 53 to reverse through its action. Further, the driven wheel 54 drives the transmission shaft 55 to reverse. The reverse rotation of the transmission shaft 55 drives the third spur gear 42 to reverse, and then drives the 1 / 4 gear 41 to reverse. Further, the rotating shaft 38 drives the bending plate 39 to reverse to perform a bending operation on the sheet material; Among them, when the drive shaft 45 rotates reversely, it will drive the wind wheel 29 to rotate reversely. At this time, due to the reset of the extrusion sheet 14, the wind wheel 29 will not suck the gas inside the sleeve 25 when rotating reversely. Through the action of the exhaust valve 30, the wind wheel 29 can rotate normally. And when the drive shaft 45 rotates reversely, it will also drive the ratchet gear 48 to rotate reversely. At this time, the ratchet gear 48 will disengage from the ratchet pawl 49. Furthermore, the reverse rotation of the ratchet gear 48 will not drive the rotating plate 47 to rotate, and thus the rotating sleeve 46 will not rotate, that is, the second spur gear 18 will not rotate. Therefore, during the reverse rotation of the drive shaft 45, the straightening roller 13 will not rotate to affect the bending of the plate. That is, during the reverse rotation of the drive shaft 45, only the bending plate 39 will rotate to perform the bending operation on the plate. Further, after the plate is bent, the electric telescopic rod 56 pulls the moving frame 8 and the pressing frame 9 to reset, and then continues to correct and convey the plate in the above manner, and then performs the bending operation.

[0030] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or elements inherent to such process, method, article or device.

[0031] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A precision bending device for thin-walled aluminum plates, characterized in that: include: A base (1), wherein a fixing frame (2) is fixedly connected to the base (1), a plurality of groups of conveying rollers (3) are rotatably connected to the fixing frame (2), and a bending table (4) fixedly connected to the base (1) is provided at one end of the fixing frame (2), a gantry (5) is provided on the outer side of the bending table (4), and a laser rangefinder (6) is installed on the gantry (5); Also includes: A bending mechanism (7), the bending mechanism (7) comprising a moving frame (8) installed inside the gantry (5), the outer side surface of the moving frame (8) being fixedly connected to a pressing frame (9), the end of the moving frame (8) being connected to a moving component (10) connected to the gantry (5), the moving component (10) being used to drive the moving frame (8) and the pressing frame (9) to move, thereby pressing a plate, the pressing frame (9) being installed with a bending plate component (11), the bending plate component (11) being used to bend the pressed plate; A correction conveying mechanism (12), wherein the correction conveying mechanism (12) is installed inside the movable frame (8), and the correction conveying mechanism (12) is used to correct and convey the plate.

2. A precision bending device for thin-walled aluminum plates according to claim 1, characterized in that: The correction conveying mechanism (12) comprises a plurality of correction rollers (13) rotatably mounted inside the moving frame (8), the outer side surfaces of the correction rollers (13) are provided with a plurality of extrusion sheets (14), the extrusion sheets (14) are connected with an expansion assembly (15) for driving the extrusion sheets (14) to expand simultaneously to extrude plates of different thicknesses, and the correction rollers (13) are fixedly connected with a first flat gear (16), the outer side surfaces of the plurality of first flat gears (16) are meshed with a gear belt (17), the gear belt (17) is meshed with a second flat gear (18), and the axis of the second flat gear (18) is connected with a driving assembly (19) mounted inside the moving frame (8).

3. A precision bending device for thin-walled aluminum plates according to claim 2, characterized in that: The expansion assembly (15) comprises a fixed ring (26) fixed inside the correction roller (13), a sleeve (25) fixedly connected to the fixed ring (26), two groups of symmetrically arranged sliding blocks (24) slidably connected inside the sleeve (25), a tension spring (63) fixedly connected between the two groups of sliding blocks (24), a sliding rod (23) fixedly connected to the sliding block (24), a plurality of groups of connecting plates (22) fixedly connected to the sliding rod (23), a plurality of groups of first oblique connecting plates (22) fixedly connected to the connecting plates (22) The first inclined block (21) is provided with a second inclined block (20) on the inclined side of the first inclined block (21), the inclined sides of the first inclined block (21) and the second inclined block (20) are arranged in close contact with each other, and the first inclined block (21) and the second inclined block (20) are slidably connected to each other, a plurality of groups of the second inclined blocks (20) are respectively fixedly connected to a plurality of groups of the extrusion sheets (14), and the second inclined blocks (20) are slidably connected to the correction roller (13), and a gas transmission member (27) extending into the interior of the sleeve (25) is installed in the sliding rod (23).

4. The precision bending device for thin-walled aluminum plates according to claim 3 is characterized in that: The air delivery member (27) comprises a wind shield (28) fixedly connected to the pressing frame (9), a wind wheel (29) connected to the driving assembly (19) being installed inside the wind shield (28), an exhaust valve (30) being also connected to the wind shield (28), and a connecting member (31) extending to the interior of the sleeve (25) being connected to the wind shield (28).

5. The precision bending device for thin-walled aluminum plates according to claim 4, characterized in that: The connecting member (31) comprises a connecting pipe (32) connected to the wind hood (28); the end of the connecting pipe (32) is connected to a butt pipe (33); the end of the butt pipe (33) is connected to a flow distribution pipe (34); the flow distribution pipe (34) is connected to a plurality of connecting pipes (35); the end of the connecting pipe (35) is connected to an air intake pipe (36); the air intake pipe (36) passes through the correction roller (13) and the sliding rod (23) and extends to the interior of the sleeve (25).

6. The precision bending device for thin-walled aluminum plates according to claim 4, characterized in that: The bending plate assembly (11) comprises a fixing seat (37) fixedly connected to the pressing frame (9), a rotating shaft (38) being rotatably connected to the fixing seat (37), a bending plate (39) being fixedly connected to the rotating shaft (38), a 1 / 4 gear (41) being fixedly connected to the end of the rotating shaft (38), a first torsion spring (40) being fixedly connected between the 1 / 4 gear (41) and the fixing seat (37), a third spur gear (42) being meshed on the outer side surface of the 1 / 4 gear (41), and a transmission member (43) connected to the driving assembly (19) being fixedly connected to the axis of the third spur gear (42).

7. The precision bending device for thin-walled aluminum plates according to claim 6, characterized in that: The driving assembly (19) comprises a motor (44) fixed inside the moving frame (8), the output end of the motor (44) being fixedly connected to a driving shaft (45), the driving shaft (45) passing through the moving frame (8) and the wind shield (28), and being rotationally connected to the moving frame (8) and the wind shield (28), and the driving shaft (45) is also fixedly connected to the wind wheel (29), and the outer side surface of the driving shaft (45) is rotationally connected to a rotating sleeve fixedly connected to the second flat gear (18). (46), the rotating sleeve (46) is rotatably connected to the movable frame (8), and the end of the rotating sleeve (46) is fixedly connected to a rotating plate (47), the rotating plate (47) is rotatably connected to a ratchet gear (48), the outer side of the ratchet gear (48) is meshed with a pawl (49), the pawl (49) is fixedly connected to a rotating column (50) rotatably connected to the rotating plate (47), and the rotating column (50) is fixedly connected to a second torsion spring (51) fixedly connected to the rotating plate (47).

8. The precision bending device for thin-walled aluminum plates according to claim 7, characterized in that: The transmission member (43) comprises a driving wheel (52) fixedly connected to the driving shaft (45); the outer side surface of the driving wheel (52) is drivingly connected to a belt (53); the belt (53) is drivingly connected to a driven wheel (54); the axis of the driven wheel (54) is fixedly connected to a transmission shaft (55) fixedly connected to the third spur gear (42); and the transmission shaft (55) is rotationally connected to the pressing frame (9).

9. The precision bending device for thin-walled aluminum plates according to claim 1, characterized in that: The moving assembly (10) comprises an electric telescopic rod (56) fixedly connected to the gantry (5); the telescopic end of the electric telescopic rod (56) is fixedly connected to a moving rod (57) fixedly connected to the moving frame (8); a moving sleeve (58) is sleeved on the outer side of the moving rod (57); and a first spring (59) fixedly connected to the moving rod (57) is fixedly connected inside the moving sleeve (58).

10. The precision bending device for thin-walled aluminum plates according to claim 1, characterized in that: A connecting rod (60) is fixedly connected to the end of the moving frame (8), the connecting rod (60) passes through the gantry (5), and the connecting rod (60) is slidably connected to the gantry (5), a fixing plate (61) is fixedly connected to the connecting rod (60), and a second spring (62) fixedly connected to the gantry (5) is fixedly connected to the fixing plate (61).

Images