A follow-up supporting device of a bending machine and a follow-up supporting method thereof

Abstract

The present application relates to the technical field of material supporting device of bending machine, and discloses a follow-up supporting device of bending machine and a follow-up supporting method thereof, which comprises a rack, a lifting mechanism, a first supporting table, an angle adjusting mechanism, a translation mechanism, an extension frame, universal ball bearings, first anti-skid pads, second anti-skid pads and an angle detector; the output end of the lifting mechanism is provided with a movable table; the first supporting table is rotatably connected with the movable table; the angle adjusting mechanism drives the first supporting table to rotate; the two movable frames of the translation mechanism are detachably connected with second supporting tables; the extension frame is arranged in the first supporting table and is provided with a third supporting table; a plurality of universal ball bearings are arranged in the first supporting table; a plurality of first anti-skid pads are arranged in the first supporting table; a plurality of second anti-skid pads are arranged in the two second supporting tables; the device can flexibly adjust the transverse and front-back coverage range of the supporting surface, adapt to the bending requirements of different sizes of plates, and improve the universality and avoid occupying the working space.

Description

Technical Field

[0001] This invention relates to the technical field of material support devices for bending machines, and particularly to a follow-up support device and follow-up support method for bending machines. Background Technology

[0002] A bending machine is a device used to bend and shape sheet metal, widely used in industries such as construction machinery, automobile manufacturing, and home appliance production. When bending large sheet metal, due to its size and weight, the non-bending side is prone to sagging or displacement due to gravity, leading to processing accuracy issues such as bending angle deviation. Therefore, in traditional processing methods, multiple operators are usually required to work together, manually lifting the non-bending side of the sheet metal and adjusting its posture to maintain stability during processing. However, manual lifting significantly increases the labor intensity of the operators, and the limited precision of manual control severely restricts production efficiency.

[0003] To address the problems caused by manual lifting, a bending follow-up support device has been developed. The coordinated action of components such as the lifting mechanism and the angle adjustment mechanism of this device can assist in lifting the non-bending side, replacing manual assistance and improving the stability and efficiency of the processing.

[0004] However, in practical applications, the support effect is limited for boards with a large length-to-width ratio. When bending the width side of the board, the long side (length direction) can fully fit with the support surface of the follow-up support device, achieving effective support. But when switching to bending the length side of the board, the length of the long side (the original length direction becomes the extension direction of the non-bending side) far exceeds the width range of the follow-up support device itself, causing the two sides of the long side of the board to be unable to be covered by the support surface, with only the middle area receiving support. This local support method causes the two sides of the long side of the board to sag and shift due to lack of support, which in turn leads to inaccurate bending angles and ultimately affects processing accuracy.

[0005] It is evident that existing technologies still need improvement and enhancement. Summary of the Invention

[0006] In view of the shortcomings of the prior art, the purpose of the present invention is to provide a follow-up support device and a follow-up support method for a bending machine to solve the above problems.

[0007] To achieve the above objectives, the present invention adopts the following technical solution:

[0008] A follow-up support device for a bending machine, comprising:

[0009] frame,

[0010] The lifting mechanism is mounted on the frame, and the output end of the lifting mechanism is equipped with a movable platform that can move up and down;

[0011] The front side of the first support platform is rotatably connected to the front side of the movable platform via a pivot.

[0012] An angle adjustment mechanism is located between the first support platform and the movable platform, and is used to drive the first support platform to rotate around the axis of the rotating shaft;

[0013] The translation mechanism is located inside the first support platform. The translation mechanism includes two movable frames that translate along the axis of the rotation shaft. The two movable frames are symmetrically arranged on the left and right sides of the first support platform, and the two movable frames can move towards each other or away from each other synchronously. A second support platform is detachably connected to each movable frame.

[0014] The telescopic frame is located inside the first support platform. The telescopic frame extends in a direction perpendicular to the axis of rotation. A third support platform is provided on the telescopic frame.

[0015] Several omnidirectional ball bearings are located on the top of the first support platform;

[0016] Several first anti-slip pads are disposed on the top of the first support platform; each first anti-slip pad is provided with a first pressure sensor.

[0017] Several second anti-slip pads are provided on the top of two second support platforms, and each second anti-slip pad is provided with a second pressure sensor;

[0018] An angle measuring instrument, located on the front side of the frame, is used to detect the bending angle of the sheet metal.

[0019] Furthermore, the first anti-slip mat also includes a mounting base, a pad block that can be slidably connected to the mounting base in a vertical direction, a first airbag disposed between the pad block and the mounting base; the first airbag is externally connected to an air supply device; the pad block is provided with a plurality of anti-slip short columns extending out of the first support platform, and a first pressure sensor is embedded in the pad block.

[0020] Furthermore, a plurality of first tension springs are provided between the pad and the mounting base to provide elastic force for the pad to reset.

[0021] Furthermore, the translation mechanism includes four first guide rails parallel to the axis of rotation, two sets of ball screw transmission assemblies, and a first servo motor; two movable frames are slidably connected to two of the first guide rails respectively, and each movable frame is connected to a corresponding set of ball screw transmission assemblies, and the first servo motor drives the two sets of ball screw transmission assemblies to move synchronously.

[0022] Furthermore, the second support platform includes a support bar on the movable frame, a fixed platform surface fixed on the support bar, and a movable platform surface slidably connected to the support bar along the length direction of the support bar. A scissor-type telescopic assembly is connected between the fixed platform surface and the movable platform surface to drive the movable platform surface to move relative to the fixed platform surface.

[0023] Furthermore, the movable frame includes two parallel cantilever beams and a connecting beam connecting the two cantilever beams. The connecting beam has an L-shaped cross-section and a T-shaped strip extending vertically on the side of the connecting beam facing the support bar. The support bar has a T-shaped groove that matches the T-shaped strip, and the T-shaped strip and the T-shaped groove slide together.

[0024] Furthermore, the lifting mechanism includes several second guide rails vertically mounted on the frame, a rack vertically mounted on the frame, a second servo motor mounted on the movable platform, and a gear mounted on the output end of the second servo motor. The gear meshes with the rack for transmission, and the movable platform is slidably connected to the second guide rails via a second slider.

[0025] Furthermore, the angle adjustment mechanism includes an electric push rod and a linear module. The cylinder of the electric push rod is hinged to the movable platform. The linear module is fixed to the bottom of the first support platform, and its extension direction is perpendicular to the axis of the rotating shaft. The output end of the linear module is provided with a slide, which is hinged to the extension rod of the electric push rod through a third hinge seat.

[0026] A follow-up support method, the follow-up support method being applied to the follow-up support device of the bending machine, the follow-up support method comprising the following steps:

[0027] Obtain the width of the board, the first preset bending angle in the width direction of the board, and the first preset board pushing height;

[0028] When the plate is placed on the first support platform, the first initial contact pressure between the plate and the first support platform is obtained from multiple first pressure sensors, and the average value of the first initial pressure is calculated; a first pressure threshold range is set according to the average value of the first initial pressure.

[0029] When bending the width of the sheet material, the lifting mechanism drives the movable platform to rise, so that the sheet material rises synchronously to the first preset sheet material pushing height.

[0030] The bending machine is controlled to bend the sheet metal in the width direction. Every first preset time interval, the first actual bending angle in the width direction of the sheet metal is collected by the angle detector.

[0031] Based on the first actual bending angle, adjust the upward tilt angle of the first support platform;

[0032] The real-time contact pressure between the plate and the first support platform is obtained from multiple first pressure sensors, the first real-time average pressure is calculated, and the vertical position of the movable platform is adjusted according to the first real-time average pressure so that the first real-time average pressure is within the first pressure threshold range.

[0033] When the first actual bending angle is equal to the first preset bending angle, the bending machine stops bending and resets; the angle adjustment mechanism drives the first support platform to return to a horizontal state.

[0034] Furthermore, the follow-up support device of the bending machine also includes two support compensation mechanisms respectively located in the second support platform. The support compensation mechanism includes a floating seat, a second airbag and a second tension spring. The floating seat is slidably connected to the second support platform in the vertical direction. The second airbag is located between the floating seat and the second support platform. The second airbag is externally connected to an air supply device. Several second tension springs are located between the floating seat and the second support platform.

[0035] The follow-up support method further includes:

[0036] Obtain the length of the board, the second preset bending angle along the length of the board, and the second preset board insertion height;

[0037] The drive translation mechanism drives the two movable frames to move away synchronously, so that the two second support platforms move with the movable frames to a position that matches the length of the plate.

[0038] When the plate is placed on the first support platform and the two second support platforms, the second initial contact pressure between the plate and the first support platform is obtained from the feedback of multiple first pressure sensors, and the average value of the second initial pressure is calculated; a second pressure threshold range is set according to the average value of the second initial pressure.

[0039] When bending the sheet material on one side of its length, the drive lifting mechanism raises the movable platform, causing the sheet material to rise synchronously to the second preset sheet material pushing height.

[0040] The bending machine is controlled to bend the length of the sheet metal. Every second preset time interval, the second actual bending angle in the length of the sheet metal is collected by the angle detector.

[0041] Based on the second actual bending angle, adjust the upward tilt angle of the first support platform;

[0042] The real-time contact pressure between the plate and the first support platform is obtained from multiple first pressure sensors. The average real-time pressure is calculated. The vertical position of the movable platform is adjusted according to the average real-time pressure so that the average real-time pressure is within the second pressure threshold range.

[0043] The real-time contact pressure between the plate and the second support platform is obtained from multiple second pressure sensors. The average real-time pressure is calculated, and the vertical position of the floating seat is adjusted according to the average real-time pressure so that the average real-time pressure is within the second pressure threshold range.

[0044] When the second actual bending angle is equal to the second preset bending angle, the bending machine stops bending and resets; the angle adjustment mechanism drives the first support platform to return to a horizontal state.

[0045] Beneficial effects:

[0046] This invention provides a follow-up support device for a bending machine. A translation mechanism drives a movable frame, causing a second support platform to shift left and right, flexibly expanding or contracting the lateral coverage of the support surface to meet the bending requirements of long sides of plates with large length-to-width ratios. A telescopic frame drives a third support platform to extend forward and backward, expanding the front-to-back coverage of the support surface to meet the support requirements for wide-side bending of plates. Simultaneously, the second support platform employs a detachable connection mechanism, allowing operators to flexibly choose to add it according to actual processing needs, further adapting to the processing of plates of different sizes and specifications, improving the device's versatility. Furthermore, when performing wide-side bending, the second support platform can retract to its initial position to prevent obstruction of the operator's working space.

[0047] This invention proposes a follow-up support method. This method acquires sheet metal parameters and preset processing information, and adjusts the support surface using a translation mechanism and a telescopic frame to adapt it to the sheet metal dimensions. An angle detector provides real-time feedback on the bending angle, driving an angle adjustment mechanism to align the tilt angle of the first support platform with the sheet metal bending angle. Simultaneously, a lifting mechanism fine-tunes the height of the movable platform based on the average pressure calculated by a first pressure sensor, ensuring the contact pressure is within a reasonable range and guaranteeing that the support surface remains in close contact with the non-bending side of the sheet metal. When bending the width side, the second support platform can retract to its initial position to avoid obstructing the workspace. When bending the length side, a support compensation mechanism adjusts the support surface of the second support platform to keep it flush with the support surface of the first support platform, thereby compensating for any deflection or sagging of the second support platform and improving bending accuracy. Attached Figure Description

[0048] Figure 1 The structure of the follow-up support device for the bending machine provided by the present invention Figure 1 ;

[0049] Figure 2 The structure of the follow-up support device for the bending machine provided by the present invention Figure 2 ;

[0050] Figure 3 An exploded view of the first anti-slip pad in the follow-up support device of the bending machine provided by the present invention;

[0051] Figure 4 An exploded view of the first support platform in the follow-up support device of the bending machine provided by the present invention;

[0052] Figure 5 An exploded view of the second support platform in the follow-up support device of the bending machine provided by the present invention;

[0053] Figure 6 An exploded view of the fixed platform in the follow-up support device of the bending machine provided by the present invention;

[0054] Figure 7 A partial exploded view of the follow-up support device for the bending machine provided by the present invention;

[0055] Figure 8 Logical flow of the follow-up support method provided by the present invention Figure 1 ;

[0056] Figure 9 Logical flow of the follow-up support method provided by the present invention Figure 2 .

[0057] Reference numerals: Frame 1, Lifting mechanism 2, Movable platform 21, First shock absorber 211, Second shock absorber 212, Rotating shaft 22, Second guide rail 23, Rack 24, Second servo motor 25, Gear 26, First support platform 3, Universal ball bearing 31, Angle adjustment mechanism 4, Electric push rod 41, Linear module 42, Slide table 43, Third hinge seat 44, Translation mechanism 5, Movable frame 51, Cantilever beam 511, Connecting beam 512, T-shaped bar 513, First guide rail 52, Ball screw transmission assembly 53, First servo motor 54, Second support platform 6, Support Support bar 61, T-slot 611, third guide rail 612, insertion hole 613, fixed platform 62, movable platform 63, locking seat 631, hand-tightening screw 632, scissor-type telescopic assembly 64, scissor arm assembly 641, first hinge seat 642, first roller 643, first slide rail 644, second hinge seat 645, second roller 646, second slide rail 647, support compensation mechanism 65, floating seat 651, second airbag 652, second tension spring 653, second guide post 66, telescopic frame 7, third support platform 71, fixed square tube 72, movable square tube 73.

[0058] First anti-slip pad 8, first pressure sensor 81, mounting base 82, first guide post 821, pad 83, first airbag 84, anti-slip short post 85, first tension spring 86, second anti-slip pad 9, second pressure sensor 91. Detailed Implementation

[0059] This invention provides a follow-up support device and method for a bending machine. To make the objectives, technical solutions, and effects of this invention clearer and more explicit, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only for explaining the invention and are not intended to limit the invention.

[0060] In the description of this invention, it should be understood that the terms "upper," "lower," "left," and "right," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or a specific orientational structure and operation. Therefore, they should not be construed as limitations on the invention. Furthermore, "first" and "second" are only for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, unless otherwise stated, "multiple" means two or more.

[0061] In this invention, "front" refers to the side of the bending machine closer to the bending machine in this embodiment; "rear" is in the opposite direction to "front".

[0062] Please see Figures 1 to 7 As shown, the present invention provides a follow-up support device for a bending machine. The device is placed on the side of the bending machine facing the standing person and is used to assist in supporting the non-bending side of the plate. It can flexibly support plates with a large length-to-width ratio, thereby improving processing accuracy and efficiency. The device includes: a frame 1, a lifting mechanism 2, a first support platform 3, an angle adjustment mechanism 4, a translation mechanism 5, a telescopic frame 7, universal ball bearings 31, a first anti-slip mat 8, a second anti-slip mat 9, and an angle detector; the lifting mechanism 2 is mounted on the frame 1, and the output end of the lifting mechanism 2 is provided with a movable platform 21 that can move up and down; the front side of the first support platform 3 is rotatably connected to the front side of the movable platform 21 via a rotating shaft 22; the angle adjustment mechanism 4 is located between the first support platform 3 and the movable platform 21, and is used to drive the first support platform 3 to rotate around the axis of the rotating shaft 22; the translation mechanism 5 is located inside the first support platform 3, and the translation mechanism 5 includes two movable frames 51 that translate along the axis of the rotating shaft 22. The two movable frames 51 are symmetrically arranged on the left and right sides of the first support platform 3, and the two movable frames 51 can move towards each other or away from each other synchronously; each A second support platform 6 is detachably connected to a movable frame 51; a telescopic frame 7 is located inside the first support platform 3, extending in a direction perpendicular to the axis of the rotating shaft 22, and a third support platform 71 is provided on the telescopic frame 7; several universal ball bearings 31 are located on the top of the first support platform 3; several first anti-slip pads 8 are located on the top of the first support platform 3; each first anti-slip pad 8 is provided with a first pressure sensor 81, which is used to detect the contact pressure between the plate and the first support platform 3; several second anti-slip pads 9 are located on the top of the two second support platforms 6, and each second anti-slip pad 9 is provided with a second pressure sensor 91, which is used to detect the contact pressure between the plate and the second support platform 6; an angle measuring instrument is used to detect the bending angle of the plate, wherein the angle measuring instrument is not shown in the attached drawings.

[0063] For processing sheet materials with a large length-to-width ratio, this device can bend the sheet material along both the long and wide sides separately. The specific workflow is as follows:

[0064] When bending the long side of the sheet metal, the translation mechanism 5 drives the two movable frames 51 to move synchronously away, adjusting the distance between the two second support platforms 6 so that the support surface formed by the first support platform 3 and the two second support platforms 6 matches the length of the sheet metal, ensuring that both sides of the sheet metal receive effective support and avoiding lack of end support. During operation, the operator manually pushes the sheet metal in, aligning the long side bending position of the sheet metal with the working area of ​​the bending machine. After the bending machine starts, the angle detector starts synchronously, collecting the actual bending angle of the sheet metal in real time. The system drives the angle adjustment mechanism 4 to move according to the angle signal, causing the first support platform 3 to rotate around the rotating shaft 22, so that the tilt angle of the first support platform 3 matches the bending angle of the sheet metal in real time. At the same time, the lifting mechanism 2 drives the movable platform 21 to move the entire support structure and the sheet metal up and down synchronously, ensuring that the support surface is always in close contact with the non-bending side of the sheet metal. During the bending process, the first pressure sensor 81 and the second pressure sensor 91 continuously monitor the contact pressure between the sheet metal and the supporting surface and calculate the average pressure. If the average pressure is lower than a preset threshold, it indicates insufficient support and a risk of sheet metal sagging. The lifting mechanism 2 drives the movable platform 21 to rise slightly. If the average pressure is higher than the preset threshold, it indicates excessive support, which may lead to sheet metal deformation or over-support. The lifting mechanism 2 drives the movable platform 21 to descend slightly to ensure that the contact pressure remains within a reasonable range. When the angle detector detects that the bending angle of the sheet metal has reached the preset value, the bending machine stops operating and resets. The angle adjustment mechanism 4 drives the first supporting platform 3 to return to a horizontal state, thus completing the bending operation on the long side of the sheet metal. The friction between the sheet metal and the supporting surface is increased by multiple first anti-slip pads 8 and multiple second anti-slip pads 9, allowing the sheet metal to return to a horizontal state with the supporting platform.

[0065] When bending the width side of the sheet material, the telescopic frame 7 is first deployed, and the third support platform 71 moves in the front-to-back direction so that the support surface formed by the first support platform 3 and the third support platform 71 is adapted to the non-bending side of the sheet material. Then, the operator rotates the sheet material so that the width side of the sheet material faces the bending machine. Through multiple universal ball bearings 31, the coefficient of friction between the sheet material and the support surface can be effectively reduced, making it easier for the operator to flexibly and effortlessly adjust the posture of the sheet material. Before bending begins, the translation mechanism 5 drives the two movable frames 51 to retract, and the two second support platforms 6 retract to their initial positions to reduce the lateral coverage area of ​​the support surface and prevent the extended second support platforms 6 from obstructing the operator's standing and operating space. In subsequent work, the above long-side bending process is repeated. The angle detector provides real-time feedback on the bending angle, the angle adjustment mechanism 4 synchronously corrects the support angle, and the lifting mechanism 2 finely adjusts the height according to the signal from the first pressure sensor 81 to ensure that the support surface is in close contact with the non-bending side of the sheet material, thus completing the bending operation on the width side of the sheet material.

[0066] With the above configuration, the translation mechanism 5 drives the two movable frames 51 to move flexibly in the left and right directions, realizing the expansion and contraction of the support surface in the lateral direction. When bending the long side of a plate with a large length-to-width ratio, it can form stable support on both sides of the long side of the plate, effectively suppressing sagging and displacement during the bending process. When bending the width side of the plate, the telescopic frame 7 can expand the front and rear coverage of the support surface, while allowing the second support platform 6 to retract to its initial state, avoiding interference with the operator's work. In addition, the second support platform 6 adopts a detachable connection method, allowing the operator to flexibly choose whether to install it according to actual processing needs, further adapting to the processing needs of plates of different sizes and specifications, and improving the versatility of the device.

[0067] It should be noted that the size and number of anti-slip mats shown in the attached diagram are for illustrative purposes only. In actual applications, they can be adjusted according to the actual working conditions to adapt to the support requirements of different scenarios. Furthermore, to simplify the device structure and reduce production costs, while ensuring the effectiveness of pressure detection, a pressure sensor can be installed on only one of the anti-slip mats in the same row. This single-point pressure detection indirectly reflects the contact pressure status of the entire row, thereby reducing the number of pressure sensors required.

[0068] The system described above is a controller. The controller can receive the bending signal from the bending machine to achieve coordinated operation of the lifting mechanism 2, the translation mechanism 5, and the angle adjustment mechanism 4.

[0069] In a preferred embodiment, see [reference] Figure 3The first anti-slip mat 8 also includes a mounting base 82, a pad 83 that can be slidably connected to the mounting base 82 in a vertical direction, and a first airbag 84 disposed between the pad 83 and the mounting base 82; the first airbag 84 is externally connected to an air supply device; the pad 83 is provided with a plurality of anti-slip short posts 85 extending out of the first support platform 3, and the first pressure sensor 81 is embedded in the pad 83, the detection surface of the first pressure sensor 81 is flush with the top surface of the anti-slip short posts 85 to ensure the accuracy of pressure detection. When the air supply equipment inflates the first airbag 84, the expansion of the first airbag 84 pushes the pad 83 to rise vertically along the mounting base 82, so that the support surface formed by the anti-slip short column 85 is higher than the support surface of the universal ball bearing 31. At this time, the first support platform 3 is in a stable support state, and the anti-slip short column 85 is in close contact with the bottom surface of the plate, playing an anti-slip positioning role, and the contact pressure can be collected through the first pressure sensor 81. When the first airbag 84 deflates, the first airbag 84 contracts, and the pad 83 descends, so that the support surface formed by the anti-slip short column 85 is lower than the support surface of the universal ball bearing 31. At this time, the bottom surface of the plate is in contact with the universal ball bearing 31, which makes it easy for the operator to flexibly adjust the position and posture of the plate to adapt to the bending requirements in different directions.

[0070] Preferably, the mounting base 82 is provided with a plurality of first guide posts 821 extending in a vertical direction, and the pad 83 is slidably engaged with the first guide posts 821.

[0071] Furthermore, a plurality of first tension springs 86 are provided between the pad 83 and the mounting base 82 to provide elastic force for the pad 83 to reset. When the first airbag 84 is deflated, the first tension springs 86 quickly release the elastic tension, driving the pad 83 to descend quickly and smoothly, avoiding operational delays caused by the slow descent of the pad 83 after the first airbag 84 is deflated, ensuring rapid switching of the support mode, and improving the convenience of plate adjustment and work efficiency.

[0072] In the above description, the structure of the first anti-slip mat 8 is similar to that of the second anti-slip mat 9. The specific structure can be referred to the structure of the first anti-slip mat 8 described above.

[0073] In this embodiment, see Figure 4 The telescopic frame 7 includes two fixed square tubes 72 disposed in the first support platform 3, and two movable square tubes 73 that are slidably connected to the fixed square tubes 72 in a one-to-one correspondence; the movable square tubes 73 can move along the axial direction of the fixed square tubes 72 to adjust the distance between the third support platform 71 and the first support platform 3, so as to realize the expansion and contraction of the support surface in the front and rear directions.

[0074] In a preferred embodiment, see [reference] Figure 4The translation mechanism 5 includes four first guide rails 52 parallel to the axis of rotation 22, two sets of ball screw transmission assemblies 53, and a first servo motor 54. Two movable frames 51 are slidably connected to two of the first guide rails 52 respectively, and each movable frame 51 is connected to a corresponding set of ball screw transmission assemblies 53. The first servo motor 54 drives the two sets of ball screw transmission assemblies 53 to move synchronously. Specifically, the output end of the first servo motor 54 is connected to one set of ball screw transmission assemblies 53, and the two sets of ball screw transmission assemblies 53 are linked through a synchronous belt transmission assembly to ensure consistent movement. During operation, after the first servo motor 54 starts, it drives the two sets of ball screw transmission assemblies 53 to operate synchronously through the synchronous belt transmission assembly, thereby driving the two movable frames 51 to slide smoothly along the first guide rails 52, enabling the two movable frames 51 to move synchronously towards or away from each other. Ultimately, this drives the second support platform 6 to flexibly expand and contract in the lateral direction to match the support requirements of plates of different lengths.

[0075] In a preferred embodiment, see [reference] Figure 4 , 5 The second support platform 6 includes a support bar 61 on the movable frame 51, a fixed platform 62 fixed on the support bar 61, and a movable platform 63 slidably connected to the support bar 61 along the length of the support bar 61. A scissor-type telescopic component 64 is connected between the fixed platform 62 and the movable platform 63 to drive the movable platform 63 to move relative to the fixed platform 62. Both the fixed platform 62 and the movable platform 63 are provided with a second anti-slip pad 9. The scissor-type telescopic component 64 allows for flexible extension and retraction of the second support platform 6 in the front-to-back direction. When it is necessary to expand the front-to-back coverage of the second support platform 6, the scissor-type telescopic component 64 extends, pushing the moving platform 63 outward relative to the fixed platform 62, so that the total length of the second support platform 6 is consistent with the length of the first support platform 3, providing full support for the board. When a large area of ​​support is not required or excessive space needs to be avoided, the scissor-type telescopic component 64 retracts, pulling the moving platform 63 inward relative to the fixed platform 62, causing the second support platform 6 to retract as a whole, further reducing its space occupation and avoiding obstruction of the operator's work.

[0076] Further, see Figure 4The movable frame 51 includes two parallel cantilever beams 511 and a connecting beam 512 connecting the two cantilever beams 511. The connecting beam 512 has an L-shaped cross-section, and a T-shaped strip 513 extending vertically is provided on the side of the connecting beam 512 facing the support bar 61. The support bar 61 has a T-shaped groove 611 adapted to the T-shaped strip 513, and the T-shaped strip 513 and the T-shaped groove 611 slide in fit. Through the above configuration, the stability of the connection between the second support platform 6 and the movable frame 51 is ensured, and the assembly and disassembly operations are convenient. During installation, the T-shaped groove 611 of the support bar 61 is aligned with the T-shaped strip 513 of the connecting beam 512 and lowered vertically to complete the positioning. During disassembly, the second support platform 6 is lifted upward to quickly separate, realizing a stable connection between the second support platform 6 and the movable frame 51 and quick assembly and disassembly.

[0077] Specifically, see Figure 5 The scissor-type telescopic assembly 64 includes two sets of hinged scissor arm assemblies 641. One set of scissor arm assemblies 641 has its hinge point fixedly hinged to the bottom of the fixed platform 62 via a first hinge seat 642, and its other hinge point slidably connected to the bottom of the fixed platform 62 via a first roller 643. The other set of scissor arm assemblies 641 has its hinge point fixedly hinged to the bottom of the movable platform 63 via a second hinge seat 645, and its other hinge point slidably connected to the bottom of the movable platform 63 via a second roller 646 and a second slide rail 647. During adjustment, the operator manually pushes the movable platform 63, which moves smoothly along the support bar 61, causing the scissor arm assemblies 641 to unfold or fold. The scissor-type telescopic assembly 64 improves the stability and smoothness of the movable platform 63 during movement, while also enhancing the overall support strength of the second support platform 6.

[0078] Preferably, see Figure 5 The support bar 61 is fixedly provided with two third guide rails 612 arranged parallel to its length. The movable platform 63 is slidably connected to the third guide rails 612 through multiple third sliders to ensure smooth and stable movement of the movable platform 63. The movable platform 63 is fixedly provided with a locking seat 631, and a hand-tightening screw 632 is screwed onto the locking seat 631. Several insertion holes 613 are provided on the side of the support bar 61 near the movable platform 63, arranged at intervals along its length. The hand-tightening screw 632 can be inserted into any of the insertion holes 613. When the movable platform 63 moves to the target support position, the hand-tightening screw 632 is screwed in so that its end is inserted into the corresponding insertion hole 613, which can quickly lock the position of the movable platform 63 and prevent displacement during the support process.

[0079] In a preferred embodiment, see [reference] Figure 7The lifting mechanism 2 includes several second guide rails 23 vertically mounted on the frame 1, a rack 24 vertically mounted on the frame 1, a second servo motor 25 mounted on the movable platform 21, and a gear 26 located at the output end of the second servo motor 25. The gear 26 meshes with the rack 24 for transmission. The movable platform 21 is slidably connected to the second guide rails 23 via a second slider. During operation, after the second servo motor 25 starts, it drives the gear 26 to rotate. Utilizing the meshing transmission between the gear 26 and the rack 24, the movable platform 21 is driven to smoothly rise and fall along the second guide rails 23 via the second slider.

[0080] In a preferred embodiment, see [reference] Figure 7 The angle adjustment mechanism 4 includes an electric push rod 41 and a linear module 42. The cylinder of the electric push rod 41 is hinged to the movable platform 21. The linear module 42 is fixed to the bottom of the first support platform 3, and its extension direction is perpendicular to the axis of the rotating shaft 22. The output end of the linear module 42 is provided with a slide 43, which is hinged to the extension rod of the electric push rod 41 through a third hinge seat 44. During operation, the linear module 42 can drive the slide 43 to move along its own extension direction, thereby changing the hinge fulcrum position of the extension rod of the electric push rod 41. Combined with the extension and retraction action of the electric push rod 41, the angle adjustment range of the first support platform 3 can be increased, allowing the first support platform 3 to rotate flexibly around the rotating shaft 22 at a large angle. Through the above settings, the large angle adjustment requirements for large-angle bending are met, and slight posture corrections can be made for small-angle bending.

[0081] Preferably, a first shock absorber 211 is provided at the bottom of the movable platform 21. When the lifting mechanism 2 drives the movable platform 21 to descend to its lowest position, the top of the frame 1 abuts against the first shock absorber 211. A second shock absorber 212 is provided on the movable platform 21 at a horizontal position corresponding to the first support platform 3. When the angle adjustment mechanism 4 drives the first support platform 3 to swing to a horizontal position, the bottom of the first support platform 3 abuts against the second shock absorber 212. Through the above arrangement, the impact force generated when the movable platform 21 descends and the first support platform 3 returns to its original position can be buffered, avoiding component wear caused by hard contact, extending the service life of the device, and reducing vibration and noise generated by impact.

[0082] Please see Figure 8 , 9 The present invention also provides a follow-up support method, which is applied to the follow-up support device of the bending machine, and the follow-up support method includes the following steps:

[0083] S101. Obtain the width of the board, the first preset bending angle in the width direction of the board, and the first preset board pushing height;

[0084] In this embodiment, the plate parameters and bending processing information are collected first to provide data support for subsequent support surface adaptation and angle adjustment; in addition, the operator pulls the telescopic frame 7 according to the plate length so that the third support platform 71 can support the end of the plate away from the bending machine.

[0085] S102. When the plate is placed on the first support platform 3, the first initial contact pressure between the plate and the first support platform 3 is obtained from the feedback of multiple first pressure sensors 81, and the first initial pressure average value is calculated; a first pressure threshold range is set according to the first initial pressure average value.

[0086] In this embodiment, the first initial average pressure is used as a benchmark, with an upward fluctuation of 15%-25% as the upper limit of the threshold and a downward fluctuation of 15%-25% as the lower limit of the threshold. At the same time, the threshold range is finely adjusted and calibrated in combination with the compressive strength characteristics and support requirements corresponding to the material and thickness of the board, so that the first pressure threshold range is adapted to the current support condition of the board.

[0087] S103. When bending the width of the sheet material, drive the lifting mechanism 2 to raise the movable table 21, so that the sheet material rises synchronously to the first preset sheet material pushing height.

[0088] In this embodiment, the servo motor is started, and the movable frame 51 is driven to rise by the meshing transmission of gear 26 and rack 24, and the plate is lifted to the preset first plate pushing height, so that the operator can directly push one side of the plate in the width direction into the working area of ​​the bending machine.

[0089] S104. Control the bending machine to bend the width direction of the plate. Every first preset time interval, collect the first actual bending angle in the width direction of the plate once by the angle detector.

[0090] In this embodiment, to achieve real-time tracking of the dynamic changes in the bending posture of the sheet metal, the system pre-sets a fixed first preset time interval. This first preset time interval can be flexibly set according to the bending machine's operating speed and the difficulty of bending the sheet metal, specifically ranging from 0.1 to 0.3 seconds. During the bending operation of the bending machine, the angle detector periodically collects the first actual bending angle in the width direction of the sheet metal at predetermined time intervals to ensure that accurate angle data can be obtained at each critical bending stage, thereby providing real-time and continuous feedback for the subsequent angle adjustment of the first support platform 3.

[0091] S105. Based on the first actual bending angle, adjust the upward tilt angle of the first support platform 3; specifically, the first support platform 3 is fixedly equipped with an angle sensor coaxially arranged with the rotating shaft 22, and the angle sensor is not shown in the attached drawings.

[0092] In this embodiment, the system uses an angle detector to collect the first actual bending angle of the board (i.e., the current bending posture angle of the board) in real time, and simultaneously uses an angle sensor to collect the current actual support angle of the first support platform 3. The two are compared and analyzed to calculate the deviation between the actual support angle of the first support platform 3 and the actual bending angle of the board. Based on this deviation, the system sends a linkage control command to the angle adjustment mechanism 4. First, the linear module 42 drives the slide 43 to move along its own extension direction, adjusting the hinge fulcrum position of the electric push rod 41 extension rod to form a lever arm that adapts to the current deviation. Then, the system controls the extension and retraction of the electric push rod 41, which, through the lever arm transmission, drives the first support platform 3 to synchronously flip up or down around the rotating shaft 22. During the adjustment process, the system continuously and synchronously collects the actual bending angle of the board and the actual support angle of the first support platform 3, dynamically adapting the moving distance of the slide table 43 and the extension range of the electric push rod 41. If the deviation is ≤0.5°, only a fine adjustment of the electric push rod 41 is needed for quick correction. If the deviation is >0.5°, the position of the slide table 43 is first readjusted to optimize the lever arm, and then the electric push rod 41 is finely adjusted to ensure that the actual support angle of the first support platform 3 accurately matches the first actual bending angle of the board, with a fitting error of ≤0.3°. For scenarios where the bending angle of the board changes significantly, the slide table 43 is first moved to the appropriate stroke position, and the electric push rod 41 is first extended to the corresponding range to establish a basic support angle. Then, fine-tuning is gradually performed according to the real-time deviation, ultimately achieving real-time synchronous matching between the actual support angle of the first support platform 3 and the real-time bending angle of the board.

[0093] S106. Obtain the real-time contact pressure between the plate and the first support platform 3 fed back by multiple first pressure sensors 81, calculate the first real-time average pressure value, and adjust the vertical position of the movable platform 21 according to the first real-time average pressure value so that the first real-time average pressure value is within the first pressure threshold range.

[0094] In this embodiment, the system collects the detection data from multiple first pressure sensors 81 in real time, calculates the first real-time average pressure, and compares it in real time with the first pressure threshold range set in S102 to determine whether the support pressure is within a reasonable range. If the first real-time average pressure exceeds the threshold range (higher than the upper limit or lower than the lower limit), the system immediately pauses the coordinated action of the angle adjustment mechanism 4 in S105 and prioritizes sending a fine-tuning command to the lifting mechanism 2, causing the movable platform 21 to perform a small vertical lift. After the first real-time average pressure returns to the first pressure threshold range, the system restarts the coordinated action of the angle adjustment mechanism 4 to ensure that subsequent support angle adjustments are carried out in an orderly manner based on stable support pressure. If the first real-time average pressure remains within the threshold range, the current vertical position of the movable platform 21 remains unchanged, continuously providing adaptive support for the plate, effectively preventing the plate from warping, deforming, or failing due to improper pressure or uneven force.

[0095] S107. When the first actual bending angle is equal to the first preset bending angle, the bending machine stops bending and resets; the angle adjustment mechanism 4 drives the first support platform 3 to return to the horizontal state.

[0096] In this embodiment, the system continuously compares the first actual bending angle of the sheet metal collected by the angle detector with the first preset bending angle set in S101. When the two are consistent and maintained stably for a specific duration, it is determined that the bending operation in the width direction of the sheet metal has reached the standard. This specific duration can be set to 0.3 seconds to avoid misjudgment due to instantaneous angle fluctuations. The system then sends a stop and reset command to the bending machine, which stops the bending action and resets to the initial standby position. At the same time, a reset command is issued to the angle adjustment mechanism 4, driving the first support platform 3 to swing downward around the rotating shaft 22, ultimately keeping the first support platform 3 stably horizontal, thereby providing a flat support foundation for the subsequent transfer of sheet metal or the processing of the next process.

[0097] In a preferred embodiment, see [reference] Figure 6 The follow-up support device of the bending machine also includes two support compensation mechanisms 65 respectively disposed within the second support platform 6. Each support compensation mechanism 65 includes a floating seat 651, a second airbag 652, and a second tension spring 653. The floating seat 651 is slidably connected to the second support platform 6 in the vertical direction. In this embodiment, the second support platform 6 is provided with several second guide posts 66 extending vertically, and the floating seat 651 is slidably engaged with the second guide posts 66. The second airbag 652 is disposed between the floating seat 651 and the second support platform 6, and is externally connected to an air supply device. Several second tension springs 653 are disposed between the floating seat 651 and the second support platform 6, and are in a naturally stretched state, continuously providing a downward restoring force to the floating seat 651. Several second anti-slip pads 9 are disposed within the floating seat 651. In practical applications, the input end of the second airbag 652 is equipped with a pressure regulating valve to control the inflation pressure.

[0098] During operation, the support height is first adjusted according to the degree of deflection and sagging of the second support platform 6. Specifically, multiple first pressure sensors 81 collect the second real-time average pressure value between the first support platform 3 and the plate, while multiple second pressure sensors 91 collect the third real-time average pressure value between the second support platform 6 and the plate, and the two sets of pressure averages are compared. If the third real-time average pressure value is lower than the second real-time average pressure value, it indicates that the second support platform 6 is deflecting and sagging, resulting in inadequate support. Based on the pressure difference, the system fills the second airbag 652 with gas of appropriate pressure through the air supply equipment and pressure regulating valve. The gas expands and pushes the floating seat 651 upward until the upper surface of the second anti-slip pad 9 on the top of the floating seat 651 is flush with the support surface of the first anti-slip pad 8 on the first support platform 3, forming a complete and flat integrated support surface. At this time, the two sets of pressure averages tend to be consistent, achieving precise compensation for the deflection and sagging of the second support platform 6. By setting a second tension spring 653, when the second airbag 652 is inflated, the second tension spring 653 balances the thrust of the second airbag 652 with a downward pulling force, preventing the floating seat 651 from rushing upwards quickly; when the second airbag 652 is depressurized, the floating seat 651 is pulled to quickly return to the initial position, improving the continuity of the action.

[0099] In this embodiment, see Figure 9 The follow-up support method further includes:

[0100] S201. Obtain the length of the board, the second preset bending angle in the length direction of the board, and the second preset board pushing height. When processing the same board, the first preset board pushing height and the second preset board pushing height are the same, thereby providing data support for the subsequent adaptation of the support surface and the follow-up adjustment of the angle.

[0101] S202, the drive translation mechanism 5 drives the two movable frames 51 to move away synchronously, so that the two second support platforms 6 move with the movable frames 51 to a position that matches the length of the plate.

[0102] In this embodiment, based on the length of the plate obtained in S201, the movement of the translation mechanism 5 is controlled. The first servo motor 54 drives two sets of ball screw transmission components 53 to move, thereby driving the two movable frames 51 to move synchronously away from each other along the first guide rail 52. The second support platform 6 moves synchronously with the movable frame 51, so that the two second support platforms 6 are symmetrically distributed on both sides below the length of the plate, thereby forming auxiliary support.

[0103] S203. When the plate is placed on the first support platform 3 and the two second support platforms 6, the second initial contact pressure between the plate and the first support platform 3 is obtained from the feedback of multiple first pressure sensors 81, and the average value of the second initial pressure is calculated; a second pressure threshold range is set according to the average value of the second initial pressure. In this embodiment, the system summarizes the data of the first pressure sensors 81 and calculates the average value of the second initial pressure. Referring to the setting logic of S102, the average value is used as a benchmark to float upward and downward by 15%-25% to form the second pressure threshold range.

[0104] S204. When bending one side of the sheet material, the drive lifting mechanism 2 drives the movable table 21 to rise, so that the sheet material rises synchronously to the second preset sheet material pushing height; this makes it convenient for the operator to directly push one side of the sheet material along its length into the working area of ​​the bending machine.

[0105] S205. Control the bending machine to bend the plate along its length. Every second preset time interval, collect the second actual bending angle along the length of the plate using an angle detector to achieve real-time tracking of the plate bending posture change, providing real-time and continuous feedback for the subsequent angle adjustment of the first support platform 3.

[0106] S206. Based on the second actual bending angle, adjust the upward tilt angle of the first support platform 3. In this embodiment, referring to the adjustment logic of S105, the second actual bending angle collected by the angle detector is compared with the preset bending angle. After calculating the deviation value, the angle adjustment mechanism 4 is controlled to move, driving the first support platform 3 to tilt upward, so as to ensure that its support angle matches the bending angle of the board in real time.

[0107] S207. Obtain the real-time contact pressure between the plate and the first support platform 3 fed back by multiple first pressure sensors 81, calculate the second real-time average pressure value, and adjust the vertical position of the movable platform 21 according to the second real-time average pressure value so that the second real-time average pressure value is within the second pressure threshold range. In this embodiment, referring to the control logic of S106, the system calculates the second real-time average pressure value in real time and compares it with the second pressure threshold range. If it exceeds the range, the angle adjustment action is paused, and the vertical position of the movable platform 21 is finely adjusted first through the lifting mechanism 2. After the pressure returns to the threshold, the angle adjustment is restarted to adapt to the collaborative support requirements of multiple support platforms and ensure stable support pressure.

[0108] S208. Obtain the real-time contact pressure between the plate and the second support platform 6 fed back by multiple second pressure sensors 91, calculate the third real-time average pressure value, and adjust the vertical position of the floating seat 651 according to the third real-time average pressure value so that the third real-time average pressure value is within the second pressure threshold range.

[0109] In this embodiment, the system synchronously collects data from multiple second pressure sensors 91 and calculates a third real-time average pressure value, comparing it in real time with a second pressure threshold range. If the third real-time average pressure value exceeds the threshold, the system controls the air supply device to inflate or depressurize the second airbag 652. The expansion and contraction of the second airbag 652 drives the floating seat 651 to rise and fall vertically by a small amplitude, thereby balancing the support pressure of the first support platform 3 and the second support platform 6, making them more consistent and effectively improving the processing accuracy of the sheet metal.

[0110] S209. When the second actual bending angle is equal to the second preset bending angle, the bending machine stops bending and resets; the angle adjustment mechanism 4 drives the first support platform 3 to return to the horizontal state; in this embodiment, after the system compares the second actual bending angle with the preset value and keeps it stable for a certain period of time, it controls the bending machine to reset, and at the same time the angle adjustment mechanism 4 drives the first support platform 3 to reset to the horizontal state, thereby completing the bending operation on the long side of the plate.

[0111] It is understood that those skilled in the art can make equivalent substitutions or modifications to the technical solution and inventive concept of the present invention, and all such substitutions or modifications should fall within the protection scope of the appended claims.

Claims

1. A follow-up support device for a bending machine, characterized in that, include: Rack (1), The lifting mechanism (2) is mounted on the frame (1), and the output end of the lifting mechanism (2) is provided with a movable platform (21) that can move up and down. The front side of the first support platform (3) is rotatably connected to the front side of the movable platform (21) via a pivot (22); An angle adjustment mechanism (4) is located between the first support platform (3) and the movable platform (21) to drive the first support platform (3) to rotate around the axis of the rotating shaft (22); The translation mechanism (5) is located inside the first support platform (3). The translation mechanism (5) includes two movable frames (51) that translate along the axis of the rotating shaft (22). The two movable frames (51) are symmetrically arranged on the left and right sides of the first support platform (3), and the two movable frames (51) can move towards each other or away from each other synchronously. A second support platform (6) is detachably connected to each movable frame (51). Telescopic frame (7) is located inside the first support platform (3). The telescopic frame (7) extends in a direction perpendicular to the axis of the rotating shaft (22). A third support platform (71) is provided on the telescopic frame (7). Several omnidirectional ball bearings (31) are located on the top of the first support platform (3); Several first anti-slip pads (8) are provided on the top of the first support platform (3); each first anti-slip pad (8) is provided with a first pressure sensor (81). Several second anti-slip pads (9) are provided on the top of two second support platforms (6), and each second anti-slip pad (9) is provided with a second pressure sensor (91). An angle measuring instrument is located on the front side of the frame (1) and is used to detect the bending angle of the sheet metal.

2. The follow-up support device for the bending machine according to claim 1, characterized in that, The first anti-slip mat (8) further includes a mounting base (82), a pad (83) that can be slidably connected to the mounting base (82) in the vertical direction, and a first airbag (84) disposed between the pad (83) and the mounting base (82); the first airbag (84) is connected to an external air supply device; the pad (83) is provided with a plurality of anti-slip short columns (85) extending to the outside of the first support platform (3), and the first pressure sensor (81) is embedded in the pad (83).

3. The follow-up support device for the bending machine according to claim 2, characterized in that, A plurality of first tension springs (86) are provided between the pad (83) and the mounting base (82) to provide elastic force for the pad (83) to reset.

4. The follow-up support device for the bending machine according to claim 1, characterized in that, The translation mechanism (5) includes four first guide rails (52) parallel to the axis of rotation (22), two sets of ball screw transmission assemblies (53), and a first servo motor (54); two movable frames (51) are slidably connected to two of the first guide rails (52) respectively, and each movable frame (51) is connected to a corresponding set of ball screw transmission assemblies (53), and the first servo motor (54) drives the two sets of ball screw transmission assemblies (53) to move synchronously.

5. The follow-up support device for the bending machine according to claim 1, characterized in that, The second support platform (6) includes a support bar (61) on the movable frame (51), a fixed platform (62) fixed on the support bar (61), and a movable platform (63) slidably connected to the support bar (61) along the length of the support bar (61). A scissor telescopic assembly (64) is connected between the fixed platform (62) and the movable platform (63) to drive the movable platform (63) to move relative to the fixed platform (62).

6. The follow-up support device for a bending machine according to claim 5, characterized in that, The movable frame (51) includes two parallel cantilever beams (511) and a connecting beam (512) connecting the two cantilever beams (511). The connecting beam (512) has an L-shaped cross section and a T-shaped strip (513) extending vertically on the side of the connecting beam (512) facing the support bar (61). The support bar (61) has a T-shaped groove (611) that matches the T-shaped strip (513), and the T-shaped strip (513) and the T-shaped groove (611) slide together.

7. The follow-up support device for the bending machine according to claim 1, characterized in that, The lifting mechanism (2) includes several second guide rails (23) vertically arranged on the frame (1), a rack (24) vertically arranged on the frame (1), a second servo motor (25) arranged on the movable platform (21), and a gear (26) arranged at the output end of the second servo motor (25). The gear (26) meshes with the rack (24) for transmission, and the movable platform (21) is slidably connected to the second guide rails (23) through the second slider.

8. The follow-up support device for the bending machine according to claim 1, characterized in that, The angle adjustment mechanism (4) includes an electric push rod (41) and a linear module (42). The cylinder of the electric push rod (41) is hinged to the movable platform (21). The linear module (42) is fixed to the bottom of the first support platform (3) and its extension direction is perpendicular to the axis of the rotating shaft (22). The output end of the linear module (42) is provided with a slide (43), which is hinged to the extension rod of the electric push rod (41) through a third hinge seat (44).

9. A follower support method, characterized in that, The follow-up support method is applied to the follow-up support device of the bending machine as described in any one of claims 1-8, and the follow-up support method includes the following steps: Obtain the width of the board, the first preset bending angle in the width direction of the board, and the first preset board pushing height; When the plate is placed on the first support platform (3), the first initial contact pressure between the plate and the first support platform (3) is obtained from multiple first pressure sensors (81), and the average value of the first initial pressure is calculated; a first pressure threshold range is set according to the average value of the first initial pressure. When bending the width of the sheet metal, the drive lifting mechanism (2) drives the movable platform (21) to rise, so that the sheet metal rises synchronously to the first preset sheet metal pushing height; The bending machine is controlled to bend the sheet metal in the width direction. Every first preset time interval, the first actual bending angle in the width direction of the sheet metal is collected by the angle detector. Based on the first actual bending angle, adjust the upward tilt angle of the first support platform (3); The real-time contact pressure between the plate and the first support platform (3) is obtained from multiple first pressure sensors (81), the first real-time average pressure is calculated, and the vertical position of the movable platform (21) is adjusted according to the first real-time average pressure so that the first real-time average pressure is within the first pressure threshold range. When the first actual bending angle is equal to the first preset bending angle, the bending machine stops bending and resets; the angle adjustment mechanism (4) drives the first support platform (3) to return to the horizontal state.

10. The follow-up support method according to claim 9, characterized in that, The follow-up support device of the bending machine also includes two support compensation mechanisms (65) respectively located in the second support platform (6). The support compensation mechanism (65) includes a floating seat (651), a second airbag (652) and a second tension spring (653). The floating seat (651) is slidably connected to the second support platform (6) in the vertical direction. The second airbag (652) is located between the floating seat (651) and the second support platform (6). The second airbag (652) is externally connected to an air supply device. Several second tension springs (653) are located between the floating seat (651) and the second support platform (6). The follow-up support method further includes: Obtain the length of the board, the second preset bending angle along the length of the board, and the second preset board insertion height; The drive translation mechanism (5) drives the two movable frames (51) to move away synchronously, so that the two second support platforms (6) move with the movable frames (51) to a position that matches the length of the plate. When the plate is placed on the first support platform (3) and the two second support platforms (6), the second initial contact pressure between the plate and the first support platform (3) is obtained from the feedback of multiple first pressure sensors (81), and the average value of the second initial pressure is calculated; the second pressure threshold range is set according to the average value of the second initial pressure. When bending the length of the sheet metal, the drive lifting mechanism (2) drives the movable platform (21) to rise, so that the sheet metal rises synchronously to the second preset sheet metal pushing height; The bending machine is controlled to bend the length of the sheet metal. Every second preset time interval, the second actual bending angle in the length of the sheet metal is collected by the angle detector. Based on the second actual bending angle, adjust the upward tilt angle of the first support platform (3); The real-time contact pressure between the plate and the first support platform (3) is obtained from multiple first pressure sensors (81), the second real-time average pressure is calculated, and the vertical position of the movable platform (21) is adjusted according to the second real-time average pressure so that the second real-time average pressure is within the second pressure threshold range. The real-time contact pressure between the plate and the second support platform (6) is obtained from multiple second pressure sensors (91), the average value of the third real-time pressure is calculated, and the vertical position of the floating seat (651) is adjusted according to the average value of the third real-time pressure so that the average value of the third real-time pressure is within the second pressure threshold range. When the second actual bending angle is equal to the second preset bending angle, the bending machine stops bending and resets; the angle adjustment mechanism (4) drives the first support platform (3) to return to the horizontal state.

Images