Progressive roll bending device and process for high ductility aluminum alloy profiles

Abstract

The application discloses a high-ductility aluminum alloy profile progressive roll-bending device and process, relates to the aluminum alloy profile processing technical field, and comprises a base serving as a device base support structure, a roll-bending mechanism for high-ductility aluminum alloy profile roll-bending and located above the base and comprising symmetrically arranged roll-bending supports, a pair of the roll-bending supports being rotationally connected through a pair of turnover connecting pieces, the roll-bending supports comprising a pair of symmetrically arranged L-shaped plates, a group of annular plates being fixedly connected to the top of each L-shaped plate, and two groups of the annular plates being aligned one by one. The roll-bending mechanism is arranged to realize progressive roll-bending processing of the high-ductility aluminum alloy profile, specifically, to realize progressive adjustment of profile support force, improve the adaptability of the device to different specifications of profiles, enhance the versatility and stability of the device, realize accurate positioning and guiding of the profile and progressive roll-bending of the profile, and improve the processing capacity of the device for complex-shaped profiles.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of aluminum alloy profile processing, in particular to a progressive roll bending device and process for high ductility aluminum alloy profiles. BACKGROUND

[0002] In the field of aluminum alloy profile processing, roll bending process is an important means to realize the bending forming of profiles. With the development of industrial technology, the processing precision and quality requirements of high ductility aluminum alloy profiles are increasingly improved, and the traditional roll bending device and process gradually expose some problems.

[0003] The traditional aluminum alloy profile roll bending device, when facing high ductility aluminum alloy profiles, due to the limitation of its structure design, it is difficult to realize the accurate roll bending of the profile. For example: the roll bending mechanism of the device often lacks flexible adjusting structure, and cannot accurately adjust the parameters according to profiles of different thickness and width, resulting in poor processing adaptability, and it is not convenient to carry due to its large size; during the roll bending process, the support force and pressure distribution of the profile are uneven, which can easily cause the profile to deform, break and other situations during bending, affecting the processing quality and yield of the profile.

[0004] Moreover, the traditional process mostly adopts one-time forming mode, which cannot realize progressive roll bending operation. This mode makes the profile instantaneously bear a large stress during the stress process, which is difficult to guarantee the bending precision and surface quality of high ductility aluminum alloy profiles, and also limits the processing capacity of complex shape profiles.

[0005] In addition, the existing roll bending device also has deficiencies in the positioning and guiding of the profile. Lack of effective limiting and guiding structure, which leads to the profile easy to deviate when entering the roll bending working area, affecting the accuracy and consistency of roll bending, increasing the processing difficulty and cost.

[0006] Therefore, how to design a roll bending device and process that can adapt to the characteristics of high ductility aluminum alloy profiles, realize progressive roll bending, improve processing precision and quality, and have good adaptability and stability, has become a technical problem to be solved in the field. SUMMARY

[0007] The purpose of the present application is to provide a high ductility aluminum alloy profile progressive roll forming device and process, which solves the problem that the traditional aluminum alloy profile roll forming device structure lacks flexible adjustment structure when facing high ductility aluminum alloy profiles, cannot accurately adjust parameters to adapt to profiles of different thickness and width, has poor processing adaptability, is large in size and inconvenient to carry, the support force and pressure distribution of the profile are uneven during the roll forming process, which easily leads to profile deformation and fracture, affects the processing quality and yield, the traditional process adopts a one-time forming method and cannot realize progressive roll forming, the profile bears a large stress instantaneously when stressed, which makes it difficult to ensure the bending precision and surface quality of high ductility aluminum alloy profiles, and also limits the processing capacity of complex-shaped profiles, and the existing roll forming device has deficiencies in profile positioning and guiding, lacks effective limiting and guiding structure, the profile is easy to deviate when entering the roll forming working area, which affects the accuracy and consistency of roll forming, and increases the processing difficulty and cost.

[0008] The present application solves the above technical problems through the following technical solutions, and comprises a base as a device foundation support structure, a roll forming mechanism for high ductility aluminum alloy profile roll forming, located above the base, comprising: a pair of symmetrically arranged roll forming supports, a pair of the roll forming supports are rotationally connected through a pair of turnover connecting pieces, the roll forming support comprises a pair of symmetrically arranged L-shaped plates, a group of annular plates are fixedly connected to the top of the L-shaped plate, a pair of the annular plates are aligned, a guiding roller assembly is arranged between the aligned annular plates, and a limiting guiding assembly is arranged on the annular plate; a turnover assembly is arranged on a pair of the turnover connecting pieces, a roll forming execution component is arranged on the turnover assembly; the height of each group of annular plates gradually increases from the roll forming execution component to the other end, forming a gradient height adjustment structure; a driving mechanism is in sliding connection with the base and connected with one of the roll forming supports, for driving the roll forming support to rotate; and an I-shaped fixed support is fixedly connected to the top of the base and connected with the other roll forming support.

[0009] Preferably, the I-shaped fixed support is provided with a first sliding groove at both ends, a pair of sliding guiding blocks are slidably connected in the first sliding groove, and the pair of sliding guiding blocks are fixedly connected with a pair of the L-shaped plates respectively; a group of strip grooves are formed at the bottom of one pair of the L-shaped plates, the two groups of strip grooves are aligned, the aligned strip grooves form a second sliding groove, and a limiting protruding strip fixedly connected with the top of the I-shaped fixed support is slidably connected in the second sliding groove; and the turnover connecting piece is composed of a pair of rotating plates, the rotating plate comprises a positioning plate and a rotating shaft rod fixedly connected, and the positioning plate is fixedly connected with the L-shaped plate.

[0010] Preferably, the turnover assembly comprises: a bidirectional screw rod, a through hole formed through the rotating shaft, a pair of limiting nuts, threaded on both ends of the bidirectional screw rod and fixedly connected in the through hole of the rotating shaft of the turnover connecting piece, a transmission wheel, fixedly sleeved on the middle segment of the bidirectional screw rod, a second belt pulley connected through a belt, a driving motor assembly connected with the second belt pulley and comprising a first driving motor and a speed changer connected with each other, and an output shaft of the speed changer fixedly connected with the second belt pulley, and a pair of first L-shaped bearing seats rotatably connected to both ends of the bidirectional screw rod.

[0011] Preferably, the guide roller assembly comprises: first support shafts rotatably connected in the annular plate, a plurality of first roller columns arranged between the first support shafts, a first sliding cavity formed at one end of the first roller column, a T-shaped column slidably connected in the first sliding cavity, a first reset spring sleeved on the T-shaped column and located in the first sliding cavity, the T-shaped column on the outer side fixedly connected with the first support shaft, a first connecting column fixedly connected to one end of the first roller column, the first roller column on the outer side inserted into a first square groove formed in the first support shaft, and the first connecting column in the middle part inserted into a second square groove formed in the first roller column.

[0012] Preferably, the limiting guide assembly comprises: a group of arc-shaped blocks fixedly connected in mounting holes formed in the annular plate, a U-shaped guide frame fixedly connected by the group of arc-shaped blocks and located in the L-shaped plate and arranged in a U shape, and a pair of arc-shaped guide plates fixedly connected to both ends of the U-shaped guide frame, the U-shaped guide frame and the arc-shaped guide plates being made of elastic material.

[0013] Preferably, the roller bending execution component comprises a position adjusting unit and a roller bending working unit connected with each other, the position adjusting unit comprises: a pair of L-shaped mounting side plates located on both sides of the I-shaped fixed support, fixedly connected with the outer side wall of the L-shaped plate and fixedly connected with the first L-shaped bearing seat, a lifting sliding block composed of a lifting plate and a pair of sliding blocks, the sliding blocks slidably connected in sliding grooves formed in the inner side walls of the L-shaped mounting side plates and slidably connected in the L-shaped mounting side plates through the sliding grooves, a second L-shaped bearing seat fixedly connected to the lower end of the lifting plate and having a second driving motor mounted thereon, a transmission gear meshingly connected with a first gear fixedly connected to the output shaft of the second driving motor, an adjusting screw rod threaded in a threaded hole in the top end of the L-shaped mounting side plate and rotatably connected with the top end of the lifting plate, an L-shaped sliding reinforcing frame slidably connected to the bottom end of the second L-shaped bearing seat, and a limiting bolt threaded in a threaded hole in the inner bottom end of the second L-shaped bearing seat and abutting against the L-shaped sliding reinforcing frame.

[0014] The roller bending working unit comprises a pair of second support shafts rotatably connected in the through holes of the lifting sliders, wherein one of the second support shafts is fixedly sleeved in the inner hole of the transmission gear;

[0015] A set of second roller columns are arranged between the pair of second support shafts, one end of the second roller column is provided with a second sliding cavity, a T-shaped cylinder is slidably connected in the second sliding cavity, the T-shaped cylinder on the outer side is fixedly connected with the second support shaft, a second return spring is sleeved on the T-shaped cylinder in the second sliding cavity; a limiting rotating shaft comprises a rotating rod and a limiting long strip fixedly connected, the rotating rod penetrates through the second support shaft, the second roller column and the T-shaped cylinder, the limiting long strip is clamped in the limiting long holes provided in the outer side walls of the T-shaped cylinders, and both ends of the rotating rod are rotatably connected with the L-shaped sliding reinforcing frame; one end of the second roller column is fixedly connected with a second connecting column, the second roller column on the outer side is inserted into the third square groove provided in the second support shaft, and the second connecting column in the middle is inserted into the fourth square groove provided in the second roller column.

[0016] Preferably, the driving mechanism comprises a sliding base slidably connected in the base and away from one end of the I-shaped fixed support, a lifting driving element fixedly connected to the inner top end of the sliding base, and a rotating connecting element comprising a T-shaped column and a bidirectional T-shaped column connected with each other, one end of the T-shaped column being rotatably connected into the U-shaped frame fixedly connected to the top of the telescopic end of the lifting driving element, both ends of the bidirectional T-shaped column being fixedly connected with fixed plates, and the fixed plates being fixedly connected with the bottom end of the L-shaped plate.

[0017] The application also provides a process for the progressive roller bending device for high-ductility aluminum alloy profiles, which comprises the following steps:

[0018] S1, device debugging stage: according to the thickness of the aluminum alloy profile, the height of the lifting slider is adjusted by adjusting the screw rod to determine the initial position of the roller bending working unit; according to the width of the aluminum alloy profile, the rotation of the bidirectional screw rod is adjusted by using the driving motor assembly, the transmission wheel and the second belt pulley to adjust the distance between the L-shaped plates, and the width of the first roller column and the second roller column can also be adjusted.

[0019] S2, profile positioning stage: place the high-ductility aluminum alloy profile on the device, preliminarily position and guide the profile by the limiting guide assembly, and provide elastic support by the U-shaped guide frame and the arc-shaped guide plate; start the lifting driving element, push the roller bending support to rotate by the rotating connecting element, and make the profile enter the roller bending working area.

[0020] S3, progressive roller bending stage: the second driving motor drives the second support shaft to rotate through the first gear and the transmission gear, and drives the second roller column to exert pressure on the profile; with the rotation of the roller bending support, the gradient height of the annular plate gradually changes the supporting force of the guide roller assembly, realizing the progressive bending of the profile.

[0021] The beneficial effects of the present application compared with the prior art are that the present application realizes the progressive adjustment of the supporting force of the profile by setting the annular plate with gradient height adjustment cooperating with the guide roller assembly, avoiding the deformation or fracture of the profile due to excessive instantaneous stress.

[0022] By setting the adjustable turnover assembly and the position adjusting unit, the roller bending mechanism parameters can be accurately adjusted according to the width and thickness of the profile, improving the adaptability of the device to different specifications of profiles.

[0023] By setting the limiting guide assembly, the profile can be accurately positioned and guided, preventing the profile from deviating during the roller bending process, improving the roller bending precision and consistency.

[0024] By setting the driving mechanism cooperating with the turnover connecting piece, the rotation of the roller bending support is realized, and combined with the gradient height structure of the annular plate, the progressive roller bending of the profile is realized, improving the processing capacity of the device for complex shape profiles.

[0025] By setting the first roller column and the second roller column with telescopic structure, the length of the roller column can be automatically adjusted according to the width of the profile, enhancing the versatility and stability of the device.

[0026] In summary, by setting the roller bending mechanism, the progressive roller bending processing of high ductility aluminum alloy profiles is realized, specifically, the progressive adjustment of the supporting force of the profile is realized, the adaptability of the device to different specifications of profiles is improved, the versatility and stability of the device are enhanced, the accurate positioning and guiding of the profile are realized, and the progressive roller bending of the profile is realized, improving the processing capacity of the device for complex shape profiles. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 is a perspective structural schematic diagram of the present application;

[0028] Figure 2 is Figure 1 is a second perspective structural schematic diagram;

[0029] Figure 3 is Figure 1 is a third perspective structural schematic diagram;

[0030] Figure 4 is Figure 1 is a fourth perspective partial sectional structural schematic diagram;

[0031] Figure 5 is Figure 4Enlarged 3D structural diagram at point A;

[0032] Figure 6 for Figure 1 Fifth-person perspective partial cross-sectional view of the three-dimensional structure;

[0033] Figure 7 for Figure 6 Enlarged 3D structural diagram at point B;

[0034] Figure 8 for Figure 1 Partial enlarged 3D structure diagram;

[0035] Figure 9 for Figure 8 Second-view magnified 3D structure diagram;

[0036] Figure 10 A magnified three-dimensional structural diagram of the position adjustment unit and the roller bending working unit in conjunction;

[0037] Figure 11 This is an enlarged three-dimensional structural diagram of the limiting and guiding component;

[0038] Figure 12 for Figure 11 Second-view magnified 3D structure diagram.

[0039] The numbers in the image represent:

[0040] 1-Base; 2-Drive mechanism; 21-Sliding base; 22-Lifting drive component; 23-Rotating connector; 3-I-shaped fixed bracket; 5-Roll bending mechanism; 51-Roll bending bracket; 52-Annular plate; 53-Guide roller assembly; 531-First support shaft; 532-First roller column; 534-T-shaped column; 536-First return spring; 54-Limit guide assembly; 543-Arc block; 541-U-shaped guide frame; 542-Arc guide plate; 56-Flip connector; 57-Flip assembly; 571-Limit nut; 572-Double lead screw; 573-First L-shaped bearing seat; 574-Transmission wheel; 575-Drive motor assembly; 58-Position adjustment unit; 581-L-shaped mounting side plate; 582-Lifting slider; 583-Second L-shaped bearing seat; 584-Transmission gear; 586-L 59-Sliding reinforcing frame; 591-Roll bending working unit; 592-Second support shaft; 594-Second roller; 596-Second return spring; 599-Limiting rotation shaft. Detailed Implementation

[0041] The above-mentioned and other technical features and advantages of the present invention will be described in more detail below with reference to the accompanying drawings.

[0042] This embodiment provides a technical solution: a progressive roll bending device for high-ductility aluminum alloy profiles, such as... Figures 1-12 As shown, the device includes a base 1, serving as the basic support structure; a drive mechanism 2, slidably connected to the base 1; and an I-shaped fixed bracket 3, fixedly connected to the top of the base 1. The drive mechanism 2 includes a sliding base 21, slidably connected to the base 1 at one end away from the I-shaped fixed bracket 3; a lifting drive component 22, fixedly connected to the top of the sliding base 21; and a rotating connector 23, including a connected T-shaped column and a bidirectional T-shaped column. One end of the T-shaped column is rotatably connected to a U-shaped frame fixedly connected to the top of the telescopic end of the lifting drive component 22. Both ends of the bidirectional T-shaped column are fixedly connected to fixed plates, which are fixedly connected to the bottom of the L-shaped plate. Rollers are provided at the bottom of the sliding base 21 to reduce sliding friction and make the sliding base 21 slide more smoothly within the base 1.

[0043] The base 1, as the basic support structure of the device, is made of high-strength material. Its bottom can be fixed to the ground or fitted with anti-slip pads, providing a stable support platform for the entire roller bending device. This ensures that components such as the drive mechanism 2, the I-shaped fixed bracket 3, and the roller bending mechanism 5 remain stable during installation and operation, avoiding profile processing errors caused by unstable support.

[0044] The base 1 is slidably connected to the drive mechanism 2, providing a track foundation for the movement of the drive mechanism 2 and making the drive mechanism 2 easy to store. The drive mechanism 2 cooperates with the I-shaped fixed bracket 3 to realize the adjustment of the profile roller bending angle and position.

[0045] Roll bending mechanism 5: used for rolling bending of high-ductility aluminum alloy profiles, located above base 1, including: symmetrically arranged roll bending brackets 51: a pair of roll bending brackets 51 are rotatably connected by a pair of flipping connectors 56; the roll bending brackets 51 include a pair of symmetrically arranged L-shaped plates, the top of the L-shaped plates is fixedly connected to a set of annular plates 52, the two sets of annular plates 52 are aligned one to one, a guide roller assembly 53 is arranged between the aligned annular plates 52, and a limiting guide assembly 54 is provided on the annular plates 52; a flipping assembly 57 is provided on the pair of flipping connectors 56, and a roll bending execution component is provided on the flipping assembly 57; the height of each set of annular plates 52 increases sequentially from the near end of the roll bending execution component to the other end, forming a gradient height adjustment structure; a drive mechanism 2 is connected to one of the roll bending brackets 51 for driving the roll bending bracket 51 to rotate, and an I-shaped fixed bracket 3 is connected to the other roll bending bracket 51.

[0046] The guide roller assembly 53 comprises: a first support shaft 531 rotatably connected in the annular plate 52, a plurality of first roller columns 532 arranged between the aligned first support shafts 531, a first sliding cavity 533 formed at one end of the first roller column 532, a T-shaped column 534 slidably connected in the first sliding cavity 533, a first reset spring 536 sleeved on the T-shaped column 534 and located in the first sliding cavity 533, the T-shaped column 534 located at the outer side is fixedly connected with the first support shaft 531, and one end of the first roller column 532 is fixedly connected with a first connecting column, the first roller column 532 located at the outer side is inserted into a first square groove formed in the first support shaft 531, and the first connecting column located at the middle part is inserted into a second square groove formed in the first roller column 532.

[0047] The limiting and guiding assembly 54 comprises: a group of arc-shaped blocks 543 fixedly connected in mounting holes formed in the annular plate 52, a U-shaped guiding frame 541 fixedly connected by the group of arc-shaped blocks 543, located in the L-shaped plate and arranged in a U shape, and a pair of arc-shaped guide plates 542 fixedly connected at two ends of the U-shaped guiding frame 541, wherein the U-shaped guiding frame 541 and the arc-shaped guide plates 542 are made of elastic material.

[0048] The roller bending execution component comprises a position adjusting unit 58 and a roller bending working unit 59 connected with each other, the position adjusting unit 58 comprises: a pair of L-shaped mounting side plates 581 respectively located at two sides of the I-shaped fixed support 3, fixedly connected with outer side walls of the L-shaped plate and fixedly connected with the first L-shaped bearing seat 573, a lifting sliding block 582 composed of a lifting plate and a pair of sliding blocks, wherein the sliding blocks are slidably connected in sliding grooves formed in inner side walls of the L-shaped mounting side plates 581 and slidably connected in the L-shaped mounting side plates 581 through the sliding grooves, a second L-shaped bearing seat 583 fixedly connected with a lower end of the lifting plate, a second driving motor 585 mounted on the second L-shaped bearing seat 583, a transmission gear 584 meshingly connected with a first gear fixedly connected with an output shaft of the second driving motor 585, an adjusting screw rod screwed in a threaded hole at a top end of the L-shaped mounting side plate 581 and rotatably connected with the lifting plate at the top end, an L-shaped sliding reinforcing frame 586 slidably connected with a lower end of the second L-shaped bearing seat 583, and a limiting bolt screwed in a threaded hole in the second L-shaped bearing seat 583 and abutting against the L-shaped sliding reinforcing frame 586.

[0049] The roller bending working unit 59 comprises: a pair of second support shafts 591 rotatably connected in the through holes of the lifting sliding blocks 582, one of the second support shafts 591 is fixedly sleeved in the inner hole of the transmission gear 584; a group of second roller columns 592 arranged between the pair of second support shafts 591; a second sliding cavity 593 is formed at one end of the second roller column 592, a T-shaped cylinder 594 is slidably connected in the second sliding cavity 593, the T-shaped cylinder 594 at the outer side is fixedly connected with the second support shaft 591, a second return spring 596 sleeved in the second sliding cavity 593 is arranged on the T-shaped cylinder 594; a limiting rotating shaft 599 comprising a rotating rod and a limiting long strip fixedly connected, the rotating rod penetrates through the second support shaft 591, the second roller column 592 and the T-shaped cylinder 594, the limiting long strip is clamped in the limiting long holes formed in the outer side walls of the plurality of T-shaped cylinders 594, the two ends of the rotating rod are rotatably connected with the L-shaped sliding reinforcing frame 586, one end of the second roller column 592 is fixedly connected with a second connecting column, the second roller column 592 at the outer side is inserted into the third square groove formed in the second support shaft 591, and the second connecting column at the middle part is inserted into the fourth square groove formed in the second roller column 592.

[0050] The roller bending support 51 has the following effects: the roller bending support 51 is composed of a pair of L-shaped plates arranged symmetrically, the top of the L-shaped plate is fixedly connected with the annular plate 52, and the bottom is connected with the rotating connecting piece 23 or the work-shaped fixed support 3, which is the main structure of the support and guide roller assembly 53 and the limiting guide assembly 54, and can provide a support platform for the profile roller bending.

[0051] The combination effect: a pair of roller bending supports 51 are rotatably connected through the turnover connecting piece 56, and are connected with the driving mechanism 2, and can rotate around the turnover connecting piece 56 under the pushing of the driving mechanism 2, so that the gradient height structure of the annular plate 52 can gradually change the support force on the profile, and the progressive roller bending is realized; at the same time, the roller bending support 51 is connected with the work-shaped fixed support 3 through the sliding guide block 55 and the limiting convex strip 510, so as to ensure the stability and directivity in the rotating process.

[0052] The annular plate 52 has the following effects: the height of each group of annular plates 52 gradually increases from the end close to the roller bending executing component to the other end, forming a gradient height adjusting structure, and the installation height of the guide roller assembly 53 on the annular plate 52 changes in a gradient manner, so that when the roller bending support 51 rotates, the support force of the guide roller assembly 53 on the profile gradually changes with the change of the height.

[0053] Combination effect: the ring-shaped plate 52 cooperates with the guide roller assembly 53. During the profile roller bending process, as the roller bending support 51 rotates, the guide roller assembly 53 gradually increases or decreases the supporting force applied to the profile under the action of the gradient height of the ring-shaped plate 52, realizing the progressive bending of the profile and avoiding profile deformation or rupture caused by excessive instantaneous stress. At the same time, the guide roller assembly 53 and the limiting guide assembly 54 jointly position and guide the profile.

[0054] The first supporting shaft 531 on the guide roller assembly 53: the first supporting shaft 531 is rotationally connected in the ring-shaped plate 52 to provide support and a rotating shaft for the first roller column 532, cooperates with the first connecting column to enable the first roller column 532 to freely rotate between the ring-shaped plates 52, and reduces the friction between the profile and the first roller column 532.

[0055] The first roller column 532: a plurality of first roller columns 532 are arranged between the aligned first supporting shafts 531, directly contact the profile, provide supporting force and guiding force for the profile during the profile roller bending process, and the surface can be polished or coated to improve wear resistance and profile surface quality.

[0056] The T-shaped column 534 and the first reset spring 536: the first roller column 532 has a first sliding cavity 533 at one end, the T-shaped column 534 is slidingly connected in the first sliding cavity 533, the outer T-shaped column 534 is fixedly connected with the first supporting shaft 531, the middle T-shaped column 534 is fixedly connected with the first roller column 532, and the first reset spring 536 is sleeved on the T-shaped column 534. This structure enables the first roller column 532 to have a certain expansion space, and the length of the first roller column 532 can be adjusted according to the width of the profile.

[0057] Combination effect: the guide roller assembly 53 is installed between the ring-shaped plates 52 and cooperates with the gradient height structure of the ring-shaped plates 52. When the roller bending support 51 rotates, the supporting force of the guide roller assembly 53 gradually changes with the change in the height of the ring-shaped plate 52, realizing the progressive bending of the profile.

[0058] The arc-shaped block 543 in the limiting guide assembly 54: the arc-shaped block 543 is fixedly connected in the mounting hole on the ring-shaped plate 52 to fix the U-shaped guide bracket 541, ensuring the stability and accuracy of the installation of the U-shaped guide bracket 541.

[0059] The arc-shaped guide plate 542: preliminarily positions and guides the profile. The elastic material enables it to provide a certain buffer and clamping force when the profile is placed, ensuring that the profile accurately enters the roller bending working area.

[0060] Combination effect: the limiting and guiding assembly 54 is installed on the annular plate 52 and cooperates with the guiding roller assembly 53. In the profile positioning stage, the arc-shaped guiding plate 542 plays a guiding role on the profile, so that the profile is accurately aligned with the guiding roller assembly 53. In the roll forming stage, the profile is prevented from deviating during the roll forming process, so as to ensure that the profile is bent along the predetermined path and improve the roll forming precision.

[0061] Individual effect of the turnover connecting piece 56: the turnover connecting piece 56 is composed of a pair of rotating plates, which include positioning plates and rotating shaft rods. The positioning plates are fixedly connected with the L-shaped plates, and the rotating shaft rods provide shafts for the rotation of the roll forming supports 51, so that the pair of roll forming supports 51 can rotate around the rotating shaft rods, cooperate, and realize the turnover action of the roll forming mechanism 5.

[0062] Combination effect: the turnover connecting piece 56 cooperates with the turnover assembly 57. The turnover assembly 57 is installed on the rotating shaft rod of the turnover connecting piece 56. Through the driving of the turnover assembly 57, the turnover connecting piece 56 can be rotated, and the turnover of the roll forming supports 51 is realized. At the same time, the turnover connecting piece 56 cooperates with the I-shaped fixed support 3 and the driving mechanism 2, so that the roll forming supports 51 can move in multiple directions to meet the requirements of different roll forming processes.

[0063] The bidirectional screw rod 572 and the limiting nut 571 in the turnover assembly 57: the bidirectional screw rod 572 passes through the through hole of the rotating shaft rod of the turnover connecting piece 56, and the two ends are screwed with the limiting nuts 571. The limiting nuts 571 are fixedly connected in the through hole of the rotating shaft rod. When the bidirectional screw rod 572 is rotated, the bidirectional screw rod 572 will move along the axial direction due to the limitation of the limiting nuts 571, so as to adjust the distance between the pair of roll forming supports 51 to adapt to profiles of different widths.

[0064] The transmission wheel 574 and the driving motor assembly 575: the transmission wheel 574 is fixedly sleeved on the middle segment of the bidirectional screw rod 572 and is connected with the second belt pulley through a belt. The driving motor assembly 575 includes a first driving motor and a speed changer and is connected with the second belt pulley. The driving motor assembly 575 drives the second belt pulley to rotate, drives the transmission wheel 574 to rotate through the belt, and then drives the bidirectional screw rod 572 to rotate, so as to realize the automatic control of the rotation of the bidirectional screw rod 572 and improve the adjustment efficiency and precision.

[0065] The first L-shaped bearing seat 573: the first L-shaped bearing seat 573 is rotatably connected with the two ends of the bidirectional screw rod 572, provides support and rotation support points for the bidirectional screw rod 572, and ensures the stability and smoothness of the rotation of the bidirectional screw rod 572.

[0066] Combination effect: the turnover assembly 57 is installed on the turnover connecting piece 56, cooperates with the roll bending support 51, drives the bidirectional screw rod 572 to rotate through the driving motor assembly 575, realizes automatic adjustment of the distance between the roll bending supports 51, and cooperates with the position adjusting unit 58, can accurately adjust the working parameters of the roll bending mechanism 5 according to the width and thickness of the section bar, and improves the universality and machining precision of the device.

[0067] The L-shaped mounting side plate 581 in the position adjusting unit 58: provides a mounting basis for components such as the lifting slide block 582 and the second L-shaped bearing seat 583, and cooperates with the I-shaped fixed support 3 to enhance the structural strength of the roll bending execution component.

[0068] The lifting slide block 582: can drive the lifting slide block 582 to slide up and down in the L-shaped mounting side plate 581 through the adjusting screw, so as to adjust the height of the roll bending working unit 59 to adapt to section bars of different thicknesses.

[0069] The second L-shaped bearing seat 583 and the second driving motor 585: the second L-shaped bearing seat 583 is fixedly connected to the lower end of the lifting slide block 582 and is used for mounting the second driving motor 585; the second driving motor 585 provides power for the roll bending working unit 59 and drives the second roller column 592 to rotate.

[0070] The transmission gear 584: the transmission gear 584 is meshingly connected with the first gear on the output shaft of the second driving motor 585, transmits the power of the second driving motor 585 to the second support shaft 591, and drives the roll bending working unit 59 to rotate.

[0071] The adjusting screw and the L-shaped sliding reinforcing frame 586: the adjusting screw is screwed into the threaded hole at the top end of the L-shaped mounting side plate 581 and is rotationally connected to the bottom end of the lifting slide block 582; rotating the adjusting screw can drive the lifting slide block 582 to rise and fall; the L-shaped sliding reinforcing frame 586 is slidingly connected between the L-shaped long plates at the lower end of the second L-shaped bearing seat 583 and is fixed with the second L-shaped bearing seat 583 through the limiting bolt, which can enhance the structural stability of the roll bending working unit 59 and prevent shaking during the roll bending process.

[0072] Combination effect: the position adjusting unit 58 is connected with the roll bending working unit 59; the height of the lifting slide block 582 can be adjusted through the adjusting screw to accurately control the distance between the roll bending working unit 59 and the section bar and determine the initial position of the roll bending working unit 59; at the same time, the second driving motor 585 drives the roll bending working unit 59 to rotate through the transmission gear 584, cooperates with the roll bending working unit 59 to realize roll bending operation on the section bar, and the L-shaped sliding reinforcing frame 586 ensures the stability during the roll bending process.

[0073] The second support shaft 591 in the roll bending working unit 59 is rotationally connected in the through hole of the lifting slider 582, and one of the second support shafts 591 is fixedly sleeved in the inner hole of the transmission gear 584, which rotates under the driving of the transmission gear 584 to provide a rotating shaft for the second roller 592.

[0074] The second roller 592: A group of second rollers 592 are arranged between a pair of second support shafts 591 and directly contact the profile, rotate under the driving of the second support shaft 591, and cooperate with the second connecting column to apply pressure to the profile to cause bending deformation.

[0075] The T-shaped barrel 594 and the second reset spring 596: This structure allows the second roller 592 to have a certain expansion space, and the length of the second roller 592 can be adjusted according to the width of the profile.

[0076] The limiting rotating shaft 599: used to limit the rotation of the T-shaped barrel 594, while providing support for the T-shaped barrel 594 and the second roller 592, ensuring that the T-shaped barrel 594 and the second roller 592 can move on the limiting rotating shaft 599, and ensuring the stability of the roll bending working unit 59.

[0077] By setting the roll bending mechanism 5, progressive roll bending processing of high ductility aluminum alloy profiles is realized. Specifically, the symmetrically arranged roll bending supports 51 in the roll bending mechanism 5 are rotationally connected through the turnover connecting piece 56, and the height of each group of annular plates 52 gradually increases from the side close to the roll bending execution component to the other end, forming a gradient height adjustment structure. When the drive mechanism 2 drives the roll bending support 51 to rotate, the gradient height of the annular plate 52 gradually changes the support force of the guide roller assembly 53 on the profile, and cooperates with the pressure applied by the roll bending execution component on the profile, thereby realizing the progressive bending of the profile, avoiding the problems of deformation and fracture caused by the traditional one-time forming method, improving the bending precision and surface quality of the profile, and enhancing the processing capacity of complex-shaped profiles. In addition, the turnover assembly 57 in the roll bending mechanism 5 can adjust the distance between the L-shaped plates according to the width of the profile, and the position adjusting unit 58 can determine the initial position of the roll bending working unit 59 according to the thickness of the profile, combined with the positioning and guiding effect of the limiting guide assembly 54 on the profile, so that the device can adapt to the processing needs of different specifications of profiles, and improve the processing adaptability and yield.

[0078] The first sliding groove is provided with a pair of sliding guide blocks 55 which are slidably connected in the first sliding groove, and the pair of sliding guide blocks 55 are fixedly connected with a pair of L-shaped plates; the bottom end of the pair of L-shaped plates is provided with a group of strip-shaped grooves 511, and the two groups of strip-shaped grooves 511 are aligned, and the aligned strip-shaped grooves 511 form a second sliding groove, and the second sliding groove is slidably connected with a limiting convex strip 510 which is fixedly connected with the top of the I-shaped fixed support 3; the overturning connecting piece 56 is composed of a pair of rotating plates, and the rotating plate comprises a fixedly connected positioning plate and a rotating shaft rod, and the positioning plate is fixedly connected with the L-shaped plate.

[0079] The application also provides a progressive roll bending device process for high-ductility aluminum alloy profiles, comprising the following steps:

[0080] S1, device debugging stage: according to the thickness of the aluminum alloy profile, the height of the lifting slide block 582 is adjusted by adjusting the screw rod to determine the initial position of the roll bending working unit 59; according to the width of the aluminum alloy profile, the rotation of the bidirectional screw rod 572 is adjusted by using the driving motor assembly 575, the transmission wheel 574 and the second belt pulley, and the distance between the L-shaped plates is adjusted, and the width of the first roller column 532 and the second roller column 592 can also be adjusted.

[0081] S2, profile positioning stage: place the high-ductility aluminum alloy profile on the device, preliminarily position and guide the profile by the limiting guide assembly 54, and provide elastic support by the U-shaped guide bracket 541 and the arc-shaped guide plate 542; start the lifting driving part 22, push the roll bending support 51 to rotate by the rotating connecting piece 23, and make the profile enter the roll bending working area.

[0082] S3, progressive roll bending stage: the second driving motor 585 drives the second supporting shaft 591 to rotate through the first gear and the transmission gear 584, and drives the second roller column 592 to exert pressure on the profile; with the rotation of the roll bending support 51, the gradient height of the annular plate 52 makes the guide roller assembly 53 gradually change the supporting force, and realizes the progressive bending of the profile.

[0083] The above is only the preferred embodiment of the present application, which is only illustrative but not limiting. Those skilled in the art understand that many changes, modifications and even equivalents can be made to the present application within the spirit and scope defined by the claims of the present application, but all will fall within the protection scope of the present application.

Claims

1. A progressive roll forming apparatus for high ductility aluminum alloy sections, characterized in that, The utility model relates to a high ductility aluminum alloy profile roll forming device Base (1): as the device foundation support structure Roll forming mechanism (5): for high ductility aluminum alloy profile roll forming, located above the base (1), including: Symmetric roll forming support (51): a pair of roll forming supports (51) are rotatably connected through a pair of turnover connecting pieces (56); the roll forming support (51) includes a pair of symmetric L-shaped plates, a group of annular plates (52) are fixedly connected to the top of the L-shaped plate, two groups of annular plates (52) are aligned one by one, a guide roller assembly (53) is arranged between the aligned annular plates (52), and a limiting guide assembly (54) is arranged on the annular plate (52); a pair of turnover connecting pieces (56) are provided with a turnover assembly (57) in common, and a roll forming execution component is arranged on the turnover assembly (57); The height of each group of annular plates (52) gradually increases from the roll forming execution component to the other end, forming a gradient height adjusting structure; Driving mechanism (2): slidingly connected with the base (1) and connected with one of the roll forming supports (51), used for driving the roll forming support (51) to rotate; I-shaped fixed support (3): fixedly connected with the top of the base (1) and connected with the other roll forming support (51); First sliding groove is formed in the two ends of the I-shaped fixed support (3), a pair of slide-shaped guide blocks (55) are slidingly connected in the first sliding groove, and the pair of slide-shaped guide blocks (55) are fixedly connected with the pair of L-shaped plates respectively; The bottom end of one pair of L-shaped plates is provided with a group of strip-shaped grooves (511), two groups of strip-shaped grooves (511) are aligned one by one, the aligned strip-shaped grooves (511) form a second sliding groove, and a limiting convex strip (510) fixedly connected with the top of the I-shaped fixed support (3) is slidingly connected in the second sliding groove; Turnover connecting piece (56): composed of a pair of rotating plates, the rotating plate includes a fixedly connected positioning plate and a rotating shaft rod, and the positioning plate is fixedly connected with the L-shaped plate; The turnover assembly (57) includes: Bidirectional screw rod (572): the through hole is formed in the rotating shaft rod; A pair of limiting nuts (571) are screwed on the two ends of the bidirectional screw rod (572) and fixedly connected in the through hole formed in the rotating shaft rod of the turnover connecting piece (56); Conducting wheel (574): fixedly sleeved on the middle segment of the bidirectional screw rod (572), and a second belt pulley connected through a belt is arranged below the conducting wheel (574); Driving motor assembly (575): connected with the second belt pulley, including a first driving motor and a speed changer connected with each other, and the output shaft of the speed changer is fixedly connected with the second belt pulley; A pair of first L-shaped bearing seats (573) are rotatably connected to the two ends of the bidirectional screw rod (572).

2. The high ductility aluminum alloy profile progressive roll forming apparatus of claim 1, wherein, The guide roller assembly (53) includes: First support shaft (531) rotatably connected in the annular plate (52), a plurality of first roller columns (532) are arranged between the aligned first support shafts (531); A first sliding cavity (533) is provided at one end of the first roller (532), and a T-shaped column (534) is slidably connected in the first sliding cavity (533). A first return spring (536) located in the first sliding cavity (533) is sleeved on the T-shaped column (534). The T-shaped column (534) located on the outside is fixedly connected to the first support shaft (531); One end of the first roller (532) is fixedly connected to a first connecting column. The first roller (532) located on the outside is inserted into the first square groove opened by the first support shaft (531), and the first connecting column in the middle is inserted into the second square groove opened by the first roller (532).

3. The high ductility aluminum alloy profile progressive roll forming apparatus of claim 2, wherein, The limiting guide component (54) includes: A set of arc-shaped blocks (543): fixedly connected to the mounting holes opened on the annular plate (52); U-shaped guide frame (541): It is fixedly connected by a group of arc-shaped blocks (543), located inside the L-shaped plate, and arranged in a U-shape; A pair of arc-shaped guide plates (542): fixedly connected to both ends of the U-shaped guide frame (541), both the U-shaped guide frame (541) and the arc-shaped guide plates (542) are made of elastic material.

4. The high ductility aluminum alloy profile progressive roll forming apparatus of claim 3, wherein, The roller bending execution component includes a position adjustment unit (58) and a roller bending working unit (59) connected to each other. The position adjustment unit (58) includes: A pair of L-shaped mounting side plates (581): located on both sides of the I-shaped fixing bracket (3), fixedly connected to the outer wall of the L-shaped plate, and fixedly connected to the first L-shaped bearing seat (573); Lifting slider (582): It consists of a lifting plate and a pair of sliders, wherein the sliders are slidably connected to the grooves opened on the two inner side walls of the L-shaped mounting side plate (581), and are slidably connected to the L-shaped mounting side plate (581) through the grooves; Second L-shaped bearing seat (583): fixedly connected to the lower end of the lifting plate, on which a second drive motor (585) is installed. Transmission gear (584): meshes with the first gear fixedly connected to the output shaft of the second drive motor (585); Adjusting screw: screwed into the threaded hole at the top of the L-shaped mounting side plate (581), and rotatably connected to the top of the lifting plate; L-shaped sliding reinforcing bracket (586): slidably connected to the bottom end of the second L-shaped bearing seat (583); The inner bottom end of the second L-shaped bearing housing (583) is screwed with a limiting bolt that abuts against the L-shaped sliding reinforcing frame (586) through a threaded hole; The roller bending working unit (59) includes: A pair of second support shafts (591): rotatably connected to the through hole of the lifting slider (582), one of the second support shafts (591) being fixedly sleeved in the inner hole of the transmission gear (584); A set of second rollers (592): disposed between a pair of second support shafts (591); One end of the second roller column (592) is provided with a second sliding cavity (593), a T-shaped cylinder (594) is slidably connected in the second sliding cavity (593), the T-shaped cylinder (594) on the outer side is fixedly connected with the second support shaft (591), and a second reset spring (596) is sleeved on the T-shaped cylinder (594) and located in the second sliding cavity (593); The limiting rotation shaft (599) includes a rotation rod and a limiting long strip which are fixedly connected, the rotation rod penetrates through the second support shaft (591), the second roller column (592) and the T-shaped cylinder (594), the limiting long strip is clamped in limiting long holes formed in the outer sidewalls of the plurality of T-shaped cylinders (594), and both ends of the rotation rod are rotationally connected with the L-shaped sliding reinforcing frame (586); One end of the second roller column (592) is fixedly connected with a second connecting column, the second roller column (592) on the outer side is inserted into a third square groove formed in the second support shaft (591), and the second connecting column in the middle is inserted into a fourth square groove formed in the second roller column (592).

5. The high ductility aluminum alloy profile progressive roll forming apparatus of claim 4, wherein, The driving mechanism (2) comprises: The sliding base (21) is slidably connected in the base (1) and away from one end of the I-shaped fixed support (3); The lifting driving member (22) is fixedly connected to the inner top end of the sliding base (21); The rotation connecting member (23) comprises a T-shaped column and a bidirectional T-shaped column which are connected, one end of the T-shaped column is rotationally connected in a U-shaped frame fixedly connected to the telescopic end top of the lifting driving member (22), both ends of the bidirectional T-shaped column are fixedly connected with fixed plates, and the fixed plates are fixedly connected with the bottom end of the L-shaped plate.

6. The high ductility aluminum alloy profile incremental roll forming apparatus process of claim 5, wherein, The method comprises the following steps: S1, device debugging stage: According to the thickness of the aluminum alloy profile, the height of the lifting sliding block (582) is adjusted by adjusting the screw rod to determine the initial position of the roll bending working unit (59); According to the width of the aluminum alloy profile, the rotation of the bidirectional lead screw (572) is adjusted by using the driving motor assembly (575), the transmission wheel (574) and the second belt pulley, the distance between the L-shaped plates is adjusted, and the width of the first roller column (532) and the second roller column (592) can be adjusted; S2, profile positioning stage: The high-ductility aluminum alloy profile is placed on the device, the profile is preliminarily positioned and guided by the limiting guide assembly (54), and the U-shaped guide frame (541) and the arc-shaped guide plate (542) provide elastic support; The lifting driving member (22) is started, the roll bending support (51) is pushed to rotate through the rotation connecting member (23), and the profile enters the roll bending working area; S3, gradual roll bending stage: The second driving motor (585) drives the second support shaft (591) to rotate through the first gear and the transmission gear (584), and drives the second roller column (592) to apply pressure to the profile; With the rotation of the roll bending support (51), the gradient height of the annular plate (52) makes the guide roller assembly (53) gradually change the supporting force, so that the profile is gradually bent.

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