Automatic metal plate flanging and bending machine and method based on cabinet machining

Abstract

The invention discloses an automatic metal plate flanging and bending machine and method based on cabinet machining, and relates to the technical field of bending machines, the automatic metal plate flanging and bending machine comprises a bending machine body, an upper module and a lower module are arranged on one side of the bending machine body, and the upper module is located on the upper portion of the lower module; and a pre-pressing mechanism for pressing creases on the sheet metal part is arranged on one side of the bending machine and located on the upper portion of the upper module, and an angle deflection mechanism is arranged on one side of the bending machine. Through cooperative work of the driving motor, the gear set (the third gear, the second gear, the first gear and the half gear) and the shaft rod, it is ensured that a sheet metal part can synchronously rotate with the bottom plate during bending, deformation caused by local stress concentration is reduced, the bottom plate drives the sheet metal part to integrally rotate, and the bending efficiency is improved. The bending force is more evenly distributed on the whole sheet metal part, local excessive deformation is avoided, unnecessary upwarp or bending is reduced, and the flatness of the sheet metal part is kept.

Description

Technical Field

[0001] The present invention relates to the technical field of bending machines, and in particular to a sheet metal automatic flanging bending machine and method based on cabinet processing. Background Art

[0002] For example, the patent document with publication number CN115815382A is named as a bending mechanism of a bending machine. The bending mechanism of the bending machine of the invention has a high degree of structural coordination, and the spacing between the left slide and the right slide is adjustable, which can be suitable for processing sheets of different widths; the upper pressing knife of the clamping assembly cooperates with the guide slide rail on the mounting plate of the slide body, and the upper pressing knife moves quickly and conveniently with good stability; the bending assembly drives the bending knife to flip and control the bending angle through the engagement of the gear and the fan-shaped tooth plate through the fan-shaped plate, thereby ensuring the processing accuracy and being suitable for processing a variety of metal sheets; it has a high degree of automation, precise positioning, good bending effect, and improved production efficiency.

[0003] In the process of bending sheet metal using a press brake, local stress will be generated in the bent part of the sheet metal. The above-mentioned press brake controls the angle of the sheet metal through the cooperation of the bending components during the bending process of the sheet metal, but the position and angle of the unbent part of the sheet metal do not change, resulting in deformation of other parts of the sheet metal after bending due to local stress concentration, and easily causing flatness errors of the sheet metal due to warping or other unstable factors during the entire bending process. Therefore, the present application provides a sheet metal automatic flanging bending machine and method based on cabinet processing to meet the needs. Summary of the invention

[0004] The purpose of this application is to provide a sheet metal automatic flanging bending machine and method based on cabinet processing, which can effectively solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the present application provides the following technical solutions: a sheet metal automatic flanging bending machine based on cabinet processing, comprising a bending machine, an upper module and a lower module are arranged on one side of the bending machine, the upper module is located on the upper part of the lower module, a pre-pressing mechanism for pressing creases on a sheet metal part is arranged on one side of the bending machine and located on the upper part of the upper module, an angle deflection mechanism is arranged on one side of the bending machine, an adjustment mechanism for adjusting the bending position and angle of the sheet metal part is arranged on the upper part of the angle deflection mechanism, and a fixing mechanism for fixing the sheet metal part is arranged inside the adjusting mechanism; The pre-pressing mechanism includes a first mounting plate and a telescopic rod, the telescopic rod and the first mounting plate are both mounted on one side of the bending machine, a load-bearing plate is arranged at the lower end of the telescopic rod, a plurality of sleeves distributed at equal intervals are arranged at the lower end of the load-bearing plate, and the sleeves are slidably mounted inside the first mounting plate, and connecting rods are slidably mounted inside the sleeves.

[0006] Among them, a connecting block is commonly provided at the lower ends of several connecting rods, an indentation block for indenting the sheet metal part is provided inside the connecting block, and a spring is provided at the upper ends of several connecting rods.

[0007] Wherein, the angle deflection mechanism includes a second mounting box, which is installed on one side of the bending machine. A round rod is arranged inside the second mounting box, and a plurality of half gears distributed at equal intervals are arranged on the outer surface of the round rod. A shaft rod is rotatably installed inside the second mounting box, and a plurality of first gears meshing with the half gears are arranged on the outer surface of the shaft rod.

[0008] Wherein, a second gear is arranged on the outer surface of the shaft, a driving motor is arranged on the bottom wall of the second installation box, a third gear is arranged on the output end of the driving motor, and the third gear is meshed with the second gear.

[0009] Wherein, the adjustment mechanism includes an upper template and a bottom plate, a leakage hole is opened in the middle of the upper end of the upper template, mounting grooves are opened on both sides of the upper end of the upper template, and the bottom plate is fixedly installed on one side of several half gears.

[0010] Among them, a cross slide is arranged at the upper end of the base plate, a drive motor is arranged in the middle of the cross slide, and a circular magnetic disk is arranged at the output end of the drive motor, four electromagnetic blocks distributed in a circular array are slidably installed on the outer surface of the cross slide, and electric push rods are arranged on one side of the electromagnetic blocks, and one end of the four electric push rods are installed on one side of the drive motor.

[0011] Among them, four control boxes are arranged on the upper end of the bottom plate, and conductive sheets are arranged on the upper ends of the control boxes. A conductive groove is opened at the bottom of the circular magnetic disk, and the conductive sheet is located inside the conductive groove. The four control boxes are electrically connected to the electromagnetic blocks respectively.

[0012] Wherein, the fixing mechanism includes a first installation box, which is installed on the upper end of the base plate and located inside the installation groove. A second installation plate is arranged inside the first installation box, and a plurality of limiting holes distributed at equal intervals are opened at the upper end of the second installation plate.

[0013] Among them, a power control tube is arranged inside the limiting hole, a second electromagnetic sheet is arranged at the upper end of the power control tube, a first electromagnetic sheet is arranged at the lower end of the power control tube, and two conical springs are sleeved on the outer surface of the power control tube, and the two conical springs are respectively located on the upper and lower sides of the second mounting plate.

[0014] The present invention also provides a sheet metal automatic flanging bending machine based on cabinet processing and a bending method thereof: S1. Place the processed sheet metal part on the adjusting mechanism. When the sheet metal part is bent, the adjusting mechanism adjusts the position or angle of the sheet metal part. When the adjusting mechanism adjusts the angle of the sheet metal part, the fixing mechanism fixes the position of the sheet metal part. S2, the bending machine then drives the upper module to extrude the sheet metal part, and the upper module extrude the sheet metal part into the interior of the lower module, and the sheet metal part is bent to a suitable angle through the cooperation between the lower module and the upper module; S3. When the above-mentioned bending machine pushes the upper module to extrude the sheet metal, it will also move with the movement of the upper module. When the upper module moves downward and does not come into contact with the sheet metal, the pre-pressing mechanism will apply pressure on the plate in advance, so that an indentation will be generated at the bending part of the sheet metal.

[0015] In summary, the technical effects and advantages of the present invention are as follows: 1. The present invention ensures that the sheet metal can rotate synchronously with the base plate when bending through the coordinated work of the driving motor, the gear set (the third gear, the second gear, the first gear and the half gear) and the shaft rod, thereby reducing the deformation caused by local stress concentration. The base plate drives the sheet metal to rotate as a whole, so that the bending force is more evenly distributed on the entire sheet metal, avoiding local excessive deformation, reducing unnecessary warping or bending, and maintaining the flatness of the sheet metal.

[0016] 2. In the present invention, the second electromagnetic sheet and the first electromagnetic sheet work together to ensure that the sheet metal remains flat during the entire bending process, reducing the bending error caused by warping or other unstable factors. According to the actual deformation degree of the sheet metal during bending, the first electromagnetic sheet and the second electromagnetic sheet can adaptively adjust the adsorption force, thereby achieving precise control of the deformation. The cone spring balances the adsorption force between the second electromagnetic sheet and the first electromagnetic sheet, avoiding local excessive pressure from causing surface damage to the sheet metal.

[0017] 3. The pre-crease formed before bending in the present invention provides a clear path for subsequent bending, ensuring the consistency and accuracy of the bending angle. The pre-crease can effectively reduce the elastic recovery of the material, making the final bending angle more stable. When the indentation block contacts and squeezes the sheet metal, the action of the spring can absorb excess force after reaching a predetermined pressure, avoiding unnecessary damage or deformation on the surface of the sheet metal. Through pre-crease, stress is concentrated in a specific area, reducing the risk of dents or scratches that may occur in other parts. The indentation block is installed in the connecting block by bolts, allowing the operator to quickly adjust the crease position as needed. Due to the design of the telescopic rod, the indentation action can be completed without affecting the normal operation of the upper module. The specific position of the crease can be flexibly adjusted as required by changing the position of the bolts. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] 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 or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without paying any creative work.

[0019] Figure 1 A schematic diagram of the three-dimensional structure of a sheet metal automatic flanging bending machine for cabinet processing from a first-person perspective; Figure 2 A second-angle perspective schematic diagram of the three-dimensional structure of a sheet metal automatic flanging bending machine for cabinet processing; Figure 3 A sectional view of the three-dimensional connection structure of the automatic sheet metal flanging bending machine for cabinet processing; Figure 4 A schematic diagram of the partial first-person perspective three-dimensional connection structure of a sheet metal automatic flanging bending machine for cabinet processing; Figure 5 A schematic diagram of a partial second-view stereoscopic connection structure of a sheet metal automatic flanging bending machine for cabinet processing; Figure 6 It is a schematic diagram of the three-dimensional connection structure of the pre-pressing mechanism; Figure 7 It is an exploded diagram of the three-dimensional connection structure of the preloading mechanism; Figure 8 It is a cross-sectional view of the three-dimensional connection structure of the pre-pressing mechanism; Fig. 9 It is a schematic diagram of the three-dimensional connection structure of the fixing mechanism, the adjusting mechanism and the angle deflection mechanism; Fig.10 It is a schematic diagram of a first-person perspective three-dimensional connection structure of an angle deflection mechanism; Fig.11 It is a schematic diagram of a second viewing angle three-dimensional connection structure of the angle deflection mechanism; Fig.12 It is a schematic diagram of the three-dimensional connection structure of the fixing mechanism and the adjusting mechanism; Fig.13 It is a schematic diagram of the three-dimensional connection structure of the adjustment mechanism; Fig.14 It is a schematic diagram of the local three-dimensional connection structure of the regulating mechanism; Fig.15 It is a schematic diagram of the three-dimensional connection structure of the electromagnetic block and the cross slide; Fig.16 It is a schematic diagram of the three-dimensional connection structure of the circular disk and the cross slide; Fig.17 It is a cross-sectional view of the three-dimensional connection structure of the fixing mechanism; Fig.18It is a schematic diagram of the three-dimensional connection structure of the second mounting plate and the first mounting box; Fig.19 is a schematic diagram of the three-dimensional connection structure of the second electromagnetic sheet and the power control tube; Fig. 20 It is a schematic diagram of the three-dimensional connection structure between the second mounting plate and the control power tube.

[0020] In the figure: 1. bending machine; 2. pre-pressing mechanism; 21. first mounting plate; 22. telescopic rod; 23. load-bearing plate; 24. sleeve; 25. connecting block; 26. connecting rod; 27. indentation block; 28. spring; 3. upper module; 4. lower module; 5. fixing mechanism; 51. first mounting box; 52. second mounting plate; 53. first electromagnetic sheet; 54. second electromagnetic sheet; 55. limiting hole; 56. control tube; 57. cone spring; 6. adjustment mechanism; 6 1. Upper template; 62. Mounting groove; 63. Bottom plate; 64. Leakage hole; 65. Cross slide rail; 66. Magnetic disk; 67. Electromagnetic block; 68. Wire control box; 69. Conductive sheet; 611. Electric push rod; 612. Drive motor; 613. Conductive groove; 7. Angle deflection mechanism; 71. Second mounting box; 72. Round rod; 73. Half gear; 74. Shaft; 75. First gear; 76. Second gear; 77. Third gear; 78. Drive motor. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0022] Implemented 1. Reference Figures 1 to 20 The sheet metal automatic flanging bending machine based on cabinet processing shown in the figure comprises a bending machine 1, an upper module 3 and a lower module 4 are arranged on one side of the bending machine 1, the upper module 3 is located on the upper part of the lower module 4, a pre-pressing mechanism 2 for pressing creases on the sheet metal is arranged on one side of the bending machine 1 and located on the upper part of the upper module 3, an angle deflection mechanism 7 is arranged on one side of the bending machine 1, an adjustment mechanism 6 for adjusting the bending position and angle of the sheet metal is arranged on the upper part of the angle deflection mechanism 7, and a fixing mechanism 5 for fixing the sheet metal is arranged inside the adjustment mechanism 6; It is worth noting that the processed sheet metal part is placed on the adjustment mechanism 6, and the adjustment mechanism 6 adjusts the position or angle of the sheet metal part when the sheet metal part is bent. After the adjustment mechanism 6 adjusts the angle of the sheet metal part, the fixing mechanism 5 fixes the position of the sheet metal part. Then the bending machine 1 drives the upper module 3 to extrude the sheet metal part, and the upper module 3 extrude the sheet metal part into the interior of the lower module 4, and the sheet metal part is bent to a suitable angle through the cooperation between the lower module 4 and the upper module 3; When the above-mentioned bending machine 1 pushes the upper module 3 to extrude the sheet metal, it will also move with the movement of the upper module 3. When the upper module 3 moves downward and does not contact the sheet metal, the set pre-pressing mechanism 2 applies pressure on the plate in advance, so that an indentation is generated at the bending part of the sheet metal.

[0023] Among them, the adjustment mechanism 6 can fine-tune the position and angle of the sheet metal to ensure that each bending is performed under the correct starting conditions. The pre-pressing mechanism 2 produces a pre-crease before bending, providing a clear path for subsequent bending, ensuring the consistency and accuracy of the bending.

[0024] Embodiment 2: Based on the pre-pressing mechanism 2 provided in Embodiment 1, this embodiment provides a further technical solution of the pre-pressing mechanism 2.

[0025] The pre-pressing mechanism 2 includes a first mounting plate 21 and a telescopic rod 22. The telescopic rod 22 and the first mounting plate 21 are both mounted on one side of the bending machine 1. A load-bearing plate 23 is provided at the lower end of the telescopic rod 22. A plurality of sleeves 24 distributed at equal intervals are provided at the lower end of the load-bearing plate 23. The sleeves 24 are slidably mounted inside the first mounting plate 21, and connecting rods 26 are slidably mounted inside the sleeves 24.

[0026] It is worth mentioning that when the bending machine 1 drives the upper module 3 to move downward to extrude the sheet metal, when the sheet metal needs to be subsequently bent, the bending machine 1 drives the first mounting plate 21 and the telescopic rod 22 to move downward, the telescopic rod 22 pushes the load-bearing plate 23 to move downward, the load-bearing plate 23 drives multiple sleeves 24 to slide downward inside the first mounting plate 21, the sleeve 24 drives the connecting rod 26 to move downward, and the connecting rod 26 will drive the connecting block 25 to move downward, and the connecting block 25 drives the indentation block 27 to move downward.

[0027] A connecting block 25 is commonly provided at the lower ends of the plurality of connecting rods 26 , an indentation block 27 for indenting the sheet metal part is provided inside the connecting block 25 , and a spring 28 is provided at the upper ends of the plurality of connecting rods 26 .

[0028] Among them, when the indentation block 27 moves downward, it will contact and squeeze the sheet metal. After the sheet metal is creased by the indentation block 27, in order to prevent the sheet metal from being over-extruded, the connecting rod 26 set will slide inside the sleeve 24 to squeeze the spring 28 to contract. When the surface of the sheet metal is squeezed out with a crease, the telescopic rod 22 contracts and drives the indentation block 27 to move downward, preventing the subsequent upper module 3 from affecting the bending of the sheet metal. The indentation block 27 is installed inside the connecting block 25 by bolts, and the crease position of the sheet metal can be changed by adjusting the installation position of the bolts.

[0029] Among them, the pre-crease formed before bending provides a clear path for subsequent bending, ensuring the consistency and accuracy of the bending angle. The pre-crease can effectively reduce the elastic recovery of the material, making the final bending angle more stable.

[0030] When the indentation block 27 contacts and squeezes the sheet metal, the spring 28 can absorb excess force after reaching a predetermined pressure, thereby avoiding unnecessary damage or deformation on the surface of the sheet metal. Through pre-creases, stress is concentrated in specific areas, reducing the risk of dents or scratches in other parts.

[0031] The indentation block 27 is installed in the connection block 25 by bolts, allowing the operator to quickly adjust the folding position as needed. Due to the design of the telescopic rod 22, the indentation action can be completed without affecting the normal operation of the upper module 3. The specific position of the fold can be flexibly adjusted as required by changing the position of the bolts.

[0032] Embodiment 3: Based on the adjusting mechanism 6, fixing mechanism 5 and angle deflection mechanism 7 provided in Embodiment 1, this embodiment provides a further technical solution for the adjusting mechanism 6, fixing mechanism 5 and angle deflection mechanism 7.

[0033] The adjusting mechanism 6 comprises an upper template 61 and a bottom plate 63 . A leak hole 64 is provided in the middle of the upper end of the upper template 61 . Mounting grooves 62 are provided on both sides of the upper end of the upper template 61 . The bottom plate 63 is fixedly mounted on one side of a plurality of half gears 73 .

[0034] Four control boxes 68 are provided at the upper end of the bottom plate 63, and conductive sheets 69 are provided at the upper ends of the control boxes 68. A conductive slot 613 is provided at the bottom of the disk 66, and the conductive sheet 69 is located inside the conductive slot 613. The four control boxes 68 are electrically connected to the electromagnetic block 67 respectively.

[0035] A cross slide rail 65 is disposed at the upper end of the bottom plate 63 , a driving motor 612 is disposed in the middle of the cross slide rail 65 , and a circular magnetic disk 66 is disposed at the output end of the driving motor 612 .

[0036] It is worth mentioning that when the sheet metal is placed on the circular magnetic disk 66, the conductive sheet 69 on the control box 68 is electrically connected to the conductive slot 613 on the circular magnetic disk 66, so that the circular magnetic disk 66 is energized to generate an adsorption magnetic force, thereby adsorbing the sheet metal that needs to be bent. When the bent sheet metal needs to adjust the bending angle, the drive motor 612 drives the circular magnetic disk 66 to rotate through the output end, and the circular magnetic disk 66 will drive the sheet metal to rotate to adjust the bending angle and position of the sheet metal.

[0037] Four electromagnetic blocks 67 distributed in a ring array are slidably mounted on the outer surface of the cross slide rail 65 , and one side of the electromagnetic blocks 67 is provided with electric push rods 611 , and one end of the four electric push rods 611 is mounted on one side of the driving motor 612 .

[0038] Among them, when the position of the sheet metal part needs to be moved, the circular magnetic disk 66 is controlled by the control box 68 to stop generating magnetic force when it is energized. According to the position where the sheet metal part needs to be moved, the control box 68 is electrically connected to the electromagnetic block 67 so that the surface of the electromagnetic block 67 generates magnetic force, and the sheet metal part whose position needs to be adjusted is adsorbed by the electromagnetic block 67. After the electromagnetic block 67 adsorbs the sheet metal part, the electric push rod 611 pushes the electromagnetic block 67 to slide on the cross slide rail 65, and the sheet metal part is moved by the sliding of the electromagnetic block 67. The cross slide rail 65 is in a cross shape and can move the bending position of the sheet metal part in all directions.

[0039] Among them, by controlling the power on and off of the circular magnetic disk 66 and the electromagnetic block 67 through the control box 68, accurate adsorption and release of the sheet metal can be achieved. The electromagnetic block 67 can slide on the cross slide 65, allowing fine position adjustment of the sheet metal in the X-axis and Y-axis directions, thereby achieving higher positioning accuracy.

[0040] The driving motor 612 drives the disk 66 to rotate, so that the sheet metal parts adsorbed thereon can be easily adjusted in angle. By combining the two modes of rotation and translation, the position and posture of the sheet metal parts can be flexibly adjusted in three-dimensional space to meet the needs of complex shapes. In order to achieve precise position adjustment of the sheet metal parts, a closed-loop control system is adopted. Sensors are installed inside the bending machine 1, and the actual position information of the sheet metal parts collected by the sensors is compared with the set target position. The speed of the driving motor 612 and the rotation direction of the disk 66 are adjusted through a PID controller or a control algorithm until the error is minimized.

[0041] The fixing mechanism 5 includes a first mounting box 51, which is mounted on the upper end of the bottom plate 63 and located inside the mounting groove 62. A second mounting plate 52 is arranged inside the first mounting box 51, and a plurality of limiting holes 55 distributed at equal intervals are opened on the upper end of the second mounting plate 52.

[0042] It is worth mentioning that after adjusting the bending angle or position of the sheet metal by means of the circular magnetic disk 66 or the electromagnetic block 67, power is supplied to the control tube 56 through the electric wires, and the second electromagnetic sheet 54 and the first electromagnetic sheet 53 are controlled by the control tube 56 to generate magnetic attraction, and the second electromagnetic sheet 54 is adsorbed on the surface of the sheet metal. When the sheet metal of the cabinet is produced and the sheet metal is not bent, the entire bent sheet metal is lifted up due to the thin thickness, and other parts are prone to metal deformation.

[0043] An electric control tube 56 is arranged inside the limiting hole 55, a second electromagnetic sheet 54 is arranged at the upper end of the electric control tube 56, a first electromagnetic sheet 53 is arranged at the lower end of the electric control tube 56, and two conical springs 57 are sleeved on the outer surface of the electric control tube 56, and the two conical springs 57 are respectively located on the upper and lower sides of the second mounting plate 52.

[0044] Among them, when the second electromagnetic sheet 54 is adsorbed on the surface of the sheet metal, the first electromagnetic sheet 53 will also be adsorbed on the bottom of the first mounting box 51, so that after the second electromagnetic sheet 54 adsorbs the sheet metal, the adsorption of the first electromagnetic sheet 53 generates downward pressure on the sheet metal, and the conical spring 57 is used to balance the adsorption force generated by the second electromagnetic sheet 54 and the first electromagnetic sheet 53. When the second electromagnetic sheet 54 adsorbs the sheet metal, the conical spring 57 at the bottom of the second electromagnetic sheet 54 contracts, while the conical spring 57 at the top of the first electromagnetic sheet 53 extends, and the control tube 56 slides inside the limiting hole 55. The second electromagnetic sheet 54 and the first electromagnetic sheet 53 are arranged so that the sheet metal to be bent can be laid flat on the top of the second mounting plate 52, and the first electromagnetic sheet 53 and the second electromagnetic sheet 54 are arranged to adapt to the deformation degree of the sheet metal according to the deformation degree of the sheet metal when bending, so as to prevent other parts of the sheet metal from deforming during bending.

[0045] Among them, the second electromagnetic sheet 54 and the first electromagnetic sheet 53 work together to ensure that the sheet metal remains flat during the entire bending process, reducing bending errors caused by warping or other unstable factors. According to the actual deformation degree of the sheet metal during bending, the first electromagnetic sheet 53 and the second electromagnetic sheet 54 can adaptively adjust the adsorption force, thereby achieving precise control of the deformation.

[0046] The cone spring 57 balances the adsorption force between the second electromagnetic sheet 54 and the first electromagnetic sheet 53 , thereby preventing the surface of the sheet metal from being damaged due to excessive local pressure.

[0047] The angle deflection mechanism 7 includes a second mounting box 71, which is mounted on one side of the bending machine 1. A round rod 72 is arranged inside the second mounting box 71, and a plurality of half gears 73 distributed at equal intervals are arranged on the outer surface of the round rod 72. A shaft rod 74 is rotatably mounted inside the second mounting box 71, and a plurality of first gears 75 meshing with the half gears 73 are arranged on the outer surface of the shaft rod 74.

[0048] A second gear 76 is disposed on the outer surface of the shaft 74 , a driving motor 78 is disposed on the bottom wall of the second mounting box 71 , a third gear 77 is disposed at the output end of the driving motor 78 , and the third gear 77 is meshed with the second gear 76 .

[0049] It is worth noting that when the sheet metal is bent, the third gear 77 is driven to rotate by the driving motor 78, and the third gear 77 drives the second gear 76 to rotate, and the second gear 76 drives the shaft 74 to rotate, and the first gear 75 on the shaft 74 is meshed with the half gear 73 to drive the half gear 73 to rotate, and the half gear 73 will drive the bottom plate 63 to rotate, and the bottom plate 63 drives the sheet metal fixed above the upper template 61 to rotate. During the bending process of the sheet metal, the bending part squeezes the sheet metal, and the other parts of the sheet metal are lifted up due to the force generated by the bending. Therefore, it is necessary to support the other parts of the sheet metal to rotate with the bending angle to prevent the bending part of the sheet metal from deforming due to the stress generated by the bending. In addition, the sheet metal used in the cabinet production is prone to deformation. When the bending angle changes, the size of the cabinet assembly will be different.

[0050] Among them, by driving the motor 78, the gear set (the third gear 77, the second gear 76, the first gear 75 and the half gear 73) and the shaft 74 working together, it is ensured that the sheet metal can rotate synchronously with the base plate 63 when bending, thereby reducing the deformation caused by local stress concentration. The base plate 63 drives the sheet metal to rotate as a whole, so that the bending force is more evenly distributed on the entire sheet metal, avoiding local excessive deformation, reducing unnecessary warping or bending, and maintaining the flatness of the sheet metal.

[0051] The present invention also provides a sheet metal automatic flanging bending machine based on cabinet processing and a bending method thereof: S1, placing the processed sheet metal part on the adjusting mechanism 6, and adjusting the position or angle of the sheet metal part when bending the sheet metal part, and after the adjusting mechanism 6 adjusts the angle of the sheet metal part, the fixing mechanism 5 fixes the position of the sheet metal part; S2, the bending machine 1 then drives the upper module 3 to extrude the sheet metal part, and the upper module 3 extrude the sheet metal part into the interior of the lower module 4, and the sheet metal part is bent to a suitable angle through the cooperation between the lower module 4 and the upper module 3; S3. When the above-mentioned bending machine 1 pushes the upper module 3 to extrude the sheet metal, it will also move with the movement of the upper module 3. When the upper module 3 moves downward and does not come into contact with the sheet metal, the pre-pressing mechanism 2 is provided to apply pressure on the plate in advance, so that an indentation is generated at the bending part of the sheet metal.

[0052] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A sheet metal automatic flanging bending machine based on cabinet processing, comprising a bending machine (1), an upper module (3) and a lower module (4) being arranged on one side of the bending machine (1), the upper module (3) being located above the lower module (4), and characterized in that: A pre-pressing mechanism (2) for pressing a crease on a sheet metal part is provided on one side of the bending machine (1) and located above the upper module (3); an angle deflection mechanism (7) is provided on one side of the bending machine (1); an adjustment mechanism (6) for adjusting the bending position and angle of the sheet metal part is provided above the angle deflection mechanism (7); a fixing mechanism (5) for fixing the sheet metal part is provided inside the adjustment mechanism (6); The pre-pressing mechanism (2) comprises a first mounting plate (21) and a telescopic rod (22), the telescopic rod (22) and the first mounting plate (21) being mounted on one side of the bending machine (1), a load-bearing plate (23) being arranged at the lower end of the telescopic rod (22), a plurality of sleeves (24) being arranged at equal intervals at the lower end of the load-bearing plate (23), the sleeves (24) being slidably mounted inside the first mounting plate (21), and connecting rods (26) being slidably mounted inside the sleeves (24).

2. According to claim 1, a sheet metal automatic flanging bending machine based on cabinet processing is characterized in that: A connection block (25) is commonly provided at the lower ends of the plurality of connection rods (26), an indentation block (27) for indenting a sheet metal part is provided inside the connection block (25), and a spring (28) is provided at the upper ends of the plurality of connection rods (26).

3. According to the automatic sheet metal flanging bending machine based on cabinet processing according to claim 1, it is characterized in that: The angle deflection mechanism (7) comprises a second mounting box (71), the second mounting box (71) being mounted on one side of the bending machine (1), a round rod (72) being arranged inside the second mounting box (71), a plurality of half gears (73) being arranged on the outer surface of the round rod (72) being distributed at equal intervals, a shaft (74) being rotatably mounted inside the second mounting box (71), and a plurality of first gears (75) meshing with the half gears (73) being arranged on the outer surface of the shaft (74).

4. The automatic sheet metal flanging bending machine based on cabinet processing according to claim 3 is characterized in that: A second gear (76) is provided on the outer surface of the shaft (74), a driving motor (78) is provided on the bottom wall of the second installation box (71), a third gear (77) is provided at the output end of the driving motor (78), and the third gear (77) is meshed with the second gear (76).

5. The automatic sheet metal flanging bending machine based on cabinet processing according to claim 3 is characterized in that: The adjustment mechanism (6) comprises an upper template (61) and a bottom plate (63); a leak hole (64) is provided in the middle of the upper end of the upper template (61); mounting grooves (62) are provided on both sides of the upper end of the upper template (61); and the bottom plate (63) is fixedly mounted on one side of a plurality of half gears (73).

6. The automatic sheet metal flanging bending machine based on cabinet processing according to claim 5 is characterized in that: A cross slide rail (65) is provided at the upper end of the bottom plate (63), a drive motor (612) is provided in the middle of the cross slide rail (65), and a disk (66) is provided at the output end of the drive motor (612), four electromagnetic blocks (67) distributed in a ring array are slidably mounted on the outer surface of the cross slide rail (65), and electric push rods (611) are provided on one side of the electromagnetic blocks (67), and one end of the four electric push rods (611) is mounted on one side of the drive motor (612).

7. The automatic sheet metal flanging bending machine based on cabinet processing according to claim 6 is characterized in that: Four control boxes (68) are arranged at the upper end of the bottom plate (63), and conductive sheets (69) are arranged at the upper ends of the control boxes (68). A conductive slot (613) is provided at the bottom of the circular magnetic disk (66), and the conductive sheet (69) is located inside the conductive slot (613). The four control boxes (68) are electrically connected to the electromagnetic block (67) respectively.

8. The automatic sheet metal flanging bending machine based on cabinet processing according to claim 5 is characterized in that: The fixing mechanism (5) comprises a first mounting box (51), the first mounting box (51) being mounted on the upper end of the bottom plate (63) and located inside the mounting groove (62), a second mounting plate (52) being arranged inside the first mounting box (51), and a plurality of limiting holes (55) being arranged at equal intervals on the upper end of the second mounting plate (52).

9. The automatic sheet metal flanging bending machine based on cabinet processing according to claim 8 is characterized in that: An electric control tube (56) is arranged inside the limiting hole (55); a second electromagnetic sheet (54) is arranged at the upper end of the electric control tube (56); a first electromagnetic sheet (53) is arranged at the lower end of the electric control tube (56); two conical springs (57) are sleeved on the outer surface of the electric control tube (56); the two conical springs (57) are respectively located on the upper and lower sides of the second mounting plate (52).

10. A sheet metal automatic flanging bending machine based on cabinet processing and a bending method thereof according to any one of claims 1 to 9, characterized in that: S1, placing the processed sheet metal part on the adjusting mechanism (6), adjusting the position or angle of the sheet metal part when bending the sheet metal part, and fixing the position of the sheet metal part after the adjusting mechanism (6) adjusts the angle of the sheet metal part; S2, the bending machine (1) then drives the upper module (3) to extrude the sheet metal part, and the upper module (3) extrude the sheet metal part into the interior of the lower module (4), and the sheet metal part is bent to a suitable angle through the cooperation between the lower module (4) and the upper module (3); S3. When the bending machine (1) pushes the upper module (3) to extrude the sheet metal part, it will also move along with the movement of the upper module (3). When the upper module (3) moves downward and before coming into contact with the sheet metal part, the pre-pressing mechanism (2) applies pressure to the sheet metal part in advance, so that an indentation is generated at the bending part of the sheet metal part.

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