Bending equipment for metal material manufacturing

Abstract

The present invention discloses a bending device for manufacturing metal materials, which relates to the technical field of bending metal materials, including a bending table, wherein the upper end surface of the bending table is symmetrically provided with a slide groove, the upper end surface of the bending table is symmetrically fixedly connected to a support column, a top plate is fixedly connected between the upper ends of the two support columns, the lower end surface of the top plate is fixedly connected to a stamping cylinder, the output end of the stamping cylinder is fixedly connected to a lifting plate, the lifting plate is vertically slidably connected to the outer surfaces of the two support columns, the center of the lower end surface of the lifting plate is fixedly connected to the bending plate, a bending mold is provided below the bending plate, the bending mold is fixedly connected to the upper end surface of the bending table, and also includes a bending angle limiting mechanism, a bending material limiting mechanism and a bending position adjusting mechanism. The bending angle limiting mechanism includes symmetrically arranged limit blocks, which can perform segmented stamping and bending on the metal material, gradually increase the bending angle, and can more accurately control the rebound at each stage, thereby effectively reducing the influence of the rebound on the bending accuracy.

Description

Technical Field

[0001] The present invention relates to the technical field of metal material bending, in particular to a bending device for metal material manufacturing. Background Art

[0002] In the field of metal material processing, bending equipment is the key equipment to achieve the bending and forming of metal sheets or profiles. With the continuous development of modern manufacturing, the bending processing of metal materials has been widely used in many fields such as automobile manufacturing, aerospace, electronic equipment, and architectural decoration. Bending equipment applies external force to make the metal material undergo plastic deformation, thereby achieving the required bending angle and shape.

[0003] The traditional bending method usually drives the pressing plate to cooperate with the mold to directly perform a one-time integral punching on the metal sheet to achieve the required bending angle and shape. In the process of directly punching the metal sheet in one time, not only is it easy for the metal sheet to undergo large elastic deformation during the bending process, but due to the elastic properties of the material, the material will often deviate from the target angle due to rebound after bending, resulting in insufficient bending accuracy. Moreover, the bending force generated in the one-time punching will be concentrated in the local area of ​​the sheet, resulting in excessive local stress, which can easily cause excessive deformation, cracks or even fracture of the metal material, especially when the bending radius is small. In addition, the punching force required for the one-time punching is large, which can easily cause wear on the pressing plate and the mold. Long-term use will cause deformation or damage to the mold, affecting the subsequent bending accuracy of the metal sheet and the service life of the bending equipment.

[0004] Therefore, the present invention proposes a bending device for metal material manufacturing to solve the above problems. Summary of the Invention

[0005] (1) Technical problems solved

[0006] In view of the deficiencies in the prior art, the present invention provides a bending device for metal material manufacturing, which can effectively solve the problems in the prior art.

[0007] (2) Technical solution

[0008] To achieve the above object, the object of the present invention can be achieved through the following technical solutions:

[0009] The cam is fixedly provided with a lifting plate, and the lifting plate is fixedly provided with a lifting plate, and the lifting plate is vertically slidably connected to the outer surfaces of the two support columns, and the center of the lower end surface of the lifting plate is fixedly connected to the bending plate. A bending die is provided below the bending plate, and the bending die is fixedly connected to the upper end surface of the bending table, and also includes a bending angle limiting mechanism, a bending material limiting mechanism and a bending position adjustment mechanism. The bending angle limiting mechanism includes symmetrically arranged limit blocks, the limit blocks are all vertically slidably connected to the outer surfaces of the support columns, and the limit blocks are all located below the lifting plate. The bending angle limiting mechanism is used to control the height of the bending plate to achieve segmented stamping bending, the bending material limiting mechanism is used to limit the bent metal material, and the bending position adjustment mechanism is used to control the bending area of ​​the metal material.

[0010] As a further solution of the present invention: one side of the limit block is rotatably connected to a connecting plate, the side of the connecting plate away from the limit block is rotatably connected to a slider, the sliders are slidably connected in the slide groove, the side of the slider away from the support column is fixedly connected to a sliding column, the sliding columns are slidably connected to the bending table, and a horizontal plate is fixedly connected between the two sliding columns passing through one end of the bending table.

[0011] As a further solution of the present invention: a threaded rod is threadedly connected through the center of the horizontal plate, the threaded rod is rotatably connected to the side wall of the bending table, and a knob is fixedly connected to one end of the threaded rod away from the bending table.

[0012] As a further solution of the present invention: a fixed block is fixedly connected to one side opposite to the two limit blocks, and a retraction button is fixedly connected to the upper end surface of the fixed block, and the retraction button is used to control the stamping cylinder to retract.

[0013] As a further solution of the present invention: one of the limit blocks is fixedly connected to a pointer on the side away from the fixed block, the upper end surface of the bending table is fixedly connected to the pointer with a vertical plate, and the vertical plate is fixedly connected to a scale bar at equal distances on the side close to the pointer.

[0014] As a further solution of the present invention: the bending material limiting mechanism includes symmetrically arranged folding plates, and the folding plates are rotatably connected to the upper end surface of the bending mold. A rotating shaft is passed through and fixedly connected to the folding plates, and one end of the rotating shaft passes through and is rotatably connected to the bending mold. One end of the rotating shaft passes through the bending mold and is fixedly connected to a ratchet. There are pawls on the opposite sides of the two ratchets for cooperation, and the pawls are passed through and fixedly connected to a connecting shaft, and the connecting shafts are rotatably connected to the side walls of the bending mold. A torsion spring is fixedly connected between the pawl and the side walls of the bending mold, and the torsion springs are sleeved on the outer surface of the connecting shaft.

[0015] As a further solution of the present invention: the end of the connecting shaft away from the bending mold is fixedly connected to a dial plate, the outer surface of the rotating shaft is fixedly connected to a fixing column, and the lower end of the fixing column is fixedly connected to a counterweight block.

[0016] As a further solution of the present invention: the bending position adjustment mechanism includes a support plate, the support plate is fixedly connected to the side wall of the bending mold, the upper end surface of the support plate is provided with a movable groove, a movable block is slidably connected in the movable groove, and the upper end surface of the movable block is fixedly connected to a limiting plate.

[0017] As a further solution of the present invention: a clamping column is slidably connected between the moving block and the limit plate, a handle is fixedly connected to the upper end of the clamping column, and clamping holes are equidistantly opened at the bottom of the moving groove, and the clamping holes and the clamping column are clamped to each other.

[0018] As a further solution of the present invention: the lower end surface of the handle is fixedly connected with a spring, the end of the spring away from the handle is fixedly connected to the upper end surface of the limit plate, and the spring is sleeved on the outer surface of the clamping column.

[0019] (3) Beneficial effects

[0020] Compared with the prior art, the present invention provides a bending device for metal material manufacturing, which has the following beneficial effects:

[0021] 1. Through the setting of the bending angle limiting mechanism, the metal material can be stamped and bent in sections, and the bending angle can be gradually increased. Not only can the springback be controlled more accurately at each stage, thereby effectively reducing the impact of springback on the bending accuracy, but also the force is gradually applied through the segmented stamping, which can make the metal material deform evenly at each stage, reduce local stress concentration, effectively avoid cracks or fractures in the metal material during the bending process, improve the reliability and quality of the bent product, and reduce the force required for each stamping, thereby reducing the wear of the bending plate and the bending die, extending the service life of the bending die, and reducing production costs.

[0022] 2. The pointer and scale bar can be set to facilitate the staff to adjust the position of the limit block and accurately control the distance the bending plate drops each time during the segmented bending process. During the segmented bending process, the staff can not only flexibly adjust the position of the limit block according to different bending stages and material properties, and perform different segmented stamping and bending on the metal material, but also the design of the pointer and scale bar makes it simple and quick to adjust the position of the limit block. The staff does not need complicated measuring tools, but only needs to adjust according to the scale to quickly complete the preparation work before each bending.

[0023] 3. The setting of the bending material limiting mechanism can ensure that the folding plate is always attached to the bottom of the metal material during the segmented bending process of the metal material. It can not only adjust the limiting position of the folding plate on the metal material in real time to ensure that the angle and position of each bending are accurate and consistent, effectively reducing the bending inaccuracy caused by human error, but also in the segmented bending process, each bending angle is small and the springback of the metal material is relatively small, so that the folding plate can dynamically compensate for the springback according to the actual bending angle, ensuring the accuracy of the final bending angle of the metal material.

[0024] Among them, through the set dial plate, fixed column and counterweight block, the folding plates on both sides can be automatically pulled to rotate in the opposite direction to the initial position after the metal material is bent, so that the surface of the folding plate and the folding mold remain on the same horizontal line, which not only ensures the consistency of the starting position of each bend and improves the repeatability and accuracy of metal material bending, but also the folding plate can automatically reset to the initial position after the metal material is bent, without manual intervention, reducing the labor intensity and operation time of the staff, and improving the efficiency of metal material bending.

[0025] 4. The bending position adjustment mechanism can control the distance that the metal material passes from under the bending plate during the bending process, accurately control the passing distance of the metal material, and reduce errors caused by lack of experience or negligence of the staff. Even novice staff can quickly master the correct operation method through the precise control function, ensuring that each piece of metal material can be bent under the same conditions, reducing the bending error caused by inaccurate position, and thus ensuring the stability of the bending quality of the metal material. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] To facilitate understanding by those skilled in the art, the present invention is further described below with reference to the accompanying drawings.

[0027] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0028] Figure 2 For the present invention Figure 1 Schematic diagram of the enlarged structure of area A in the middle;

[0029] Figure 3 This is a schematic diagram of the connection structure of the limit block of the present invention;

[0030] Figure 4 This is a schematic diagram of the upper end surface structure of the bending table of the present invention;

[0031] Figure 5 For the present invention Figure 4 Schematic diagram of the enlarged structure of the middle B area;

[0032] Figure 6 For the present invention Figure 4 Schematic diagram of the enlarged structure of the middle C area;

[0033] Figure 7 It is a schematic diagram of the connection structure of the support plate and the limiting plate of the present invention.

[0034] Figure: 1, bending table; 2, support column; 3, top plate; 4, stamping cylinder; 5, lifting plate; 6, bending plate; 701, limit block; 702, connecting plate; 703, horizontal plate; 704, fixed block; 705, retraction button; 706, vertical plate; 707, scale bar; 708, pointer; 709, slider; 710, sliding column; 711, threaded rod; 712, knob; 801, bending Stacking plate; 802, rotating shaft; 803, ratchet; 804, pawl; 805, connecting shaft; 806, torsion spring; 807, shift plate; 808, fixed column; 809, counterweight; 901, support plate; 902, limit plate; 903, movable slot; 904, movable block; 905, clamping column; 906, spring; 907, handle; 908, clamping hole; 10, bending mold; 11, slide groove. DETAILED DESCRIPTION

[0035] The technical solutions of the present invention will be clearly and completely described below in conjunction with the embodiments. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0036] A bending device for metal material manufacturing in this embodiment, such as Figure 1 - Figure 7As shown, it includes a bending table 1, a slide groove 11 is symmetrically opened on the upper end surface of the bending table 1, and a support column 2 is symmetrically fixedly connected to the upper end surface of the bending table 1. A top plate 3 is fixedly connected between the upper ends of the two support columns 2, and the lower end surface of the top plate 3 is fixedly connected to the stamping cylinder 4. The output end of the stamping cylinder 4 is fixedly connected to a lifting plate 5, and the lifting plate 5 is vertically slidably connected to the outer surfaces of the two support columns 2. A bending plate 6 is fixedly connected at the center of the lower end surface of the lifting plate 5, and a bending mold 10 is arranged below the bending plate 6. The bending mold 10 is fixedly connected to the upper end surface of the bending table 1, and also includes a bending angle limiting mechanism, a bending material limiting mechanism and a bending position adjusting mechanism. The bending angle limiting mechanism includes symmetrically arranged limit blocks 701, which are all vertically slidably connected to the outer surfaces of the support columns 2, and the limit blocks 701 are all located below the lifting plate 5. The bending angle limiting mechanism is used to control the height of the bending plate 6 to achieve segmented stamping bending.

[0037] In this embodiment, Figure 3 As shown, one side of the limit block 701 is rotatably connected to a connecting plate 702, and the side of the connecting plate 702 away from the limit block 701 is rotatably connected to a slider 709, and the slider 709 is slidably connected to the slide groove 11, and the side of the slider 709 away from the support column 2 is fixedly connected to the slide column 710, and the slide column 710 is penetrated and slidably connected to the bending table 1, and the two slide columns 710 penetrate one end of the bending table 1 and are fixedly connected to the cross plate 703. When the cross plate 703 is pulled to drive the slider 709 to move in the slide groove 11 through the slide column 710, the slider 709 will pull the lower end of the connecting plate 702 to move synchronously, reducing the inclination angle between the connecting plate 702 and the bending table 1. When the inclination state of the connecting plate 702 changes, the connecting plate 702 will drive the limit block 701 to slide up and down on the outer surface of the support column 2.

[0038] In this embodiment, Figure 3 As shown, a threaded rod 711 is threadedly connected through the center of the horizontal plate 703, and the threaded rod 711 is rotatably connected to the side wall of the bending table 1. A knob 712 is fixedly connected to the end of the threaded rod 711 away from the bending table 1. When the knob 712 is rotated to drive the threaded rod 711 to rotate, the threaded rod 711 and the horizontal plate 703 are threadedly connected, which can drive the horizontal plate 703 to move horizontally on the outer surface of the threaded rod 711, so that the horizontal plate 703 is close to or away from the bending table 1.

[0039] In this embodiment, Figure 1 As shown, a fixed block 704 is fixedly connected to the opposite side between the two limit blocks 701, and a retraction button 705 is fixedly connected to the upper end surface of the fixed block 704. The retraction button 705 is used to control the stamping cylinder 4 to retract. When the stamping cylinder 4 pushes the lifting plate 5 to descend, when the lifting plate 5 and the retraction button 705 are in contact and pressed, the stamping cylinder 4 will be controlled to retract, pulling the lifting plate 5 to automatically rise.

[0040] In this embodiment, Figure 2 As shown, one of the limit blocks 701 is fixedly connected to a pointer 708 on the side away from the fixed block 704, and the upper end surface of the bending table 1 is fixedly connected to the pointer 708. The vertical plate 706 is fixedly connected to the side close to the pointer 708 at equal distances. Scale bars 707 are fixedly connected. When the limit block 701 slides up and down on the outer surface of the support column 2, it can drive the pointer 708 to move synchronously and change the scale bar 707 pointed to by the pointer 708. The staff can accurately control the lifting position of the limit block 701 by observing the scale bar 707 pointed to by the pointer 708.

[0041] In the existing technology, the metal sheet is usually directly punched as a whole in one go by driving the pressing plate to cooperate with the mold to achieve the required bending angle and shape. In the process of directly punching the metal sheet in one go, not only is it easy for the metal sheet to undergo large elastic deformation during the bending process, but due to the elastic properties of the material, the material will often deviate from the target angle due to rebound after bending, resulting in insufficient bending accuracy. Moreover, the bending force generated in the one-time punching will be concentrated in the local area of ​​the sheet, resulting in excessive local stress, which can easily cause excessive deformation, cracks or even fracture of the metal material, especially when the bending radius is small. In addition, the punching force required for the one-time punching is large, which can easily cause wear on the pressing plate and the mold. Long-term use will cause deformation or damage to the mold, affecting the subsequent bending accuracy of the metal sheet and the service life of the bending equipment. Compared with the existing technology, the metal material can be stamped and bent in sections, and the bending angle can be gradually increased. Not only can the rebound be controlled more accurately at each stage, thereby effectively reducing the impact of rebound on the bending accuracy, but also the force is gradually applied through segmented stamping, which can make the metal material deform evenly at each stage, reduce local stress concentration, effectively avoid cracks or fractures in the metal material during the bending process, improve the reliability and quality of the bent product, and reduce the force required for each stamping, thereby reducing the wear of the bending plate 6 and the bending mold 10, extending the service life of the bending mold 10, and reducing production costs.

[0042] In other aspects, this embodiment also provides a bending material limiting mechanism for limiting the position of the bent metal material, such as Figure 1 、 Figure 4 and Figure 5As shown, the bending material limiting mechanism includes symmetrically arranged folding plates 801, and the folding plates 801 are rotatably connected to the upper end surface of the bending mold 10. A rotating shaft 802 is passed through and fixedly connected to the folding plates 801, and one end of the rotating shaft 802 passes through and is rotatably connected to the bending mold 10. One end of the rotating shaft 802 passes through and is fixedly connected to the bending mold 10 and a ratchet 803 is fixedly connected thereto. A pawl 804 cooperates with each other on the opposite side of the two ratchets 803, and a connecting shaft 805 is passed through and fixedly connected to the pawl 804. The connecting shaft 805 is rotatably connected to the side wall of the bending mold 10, and a torsion spring 806 is fixedly connected between the pawl 804 and the side wall of the bending mold 10, and the torsion spring 806 is sleeved on the outer surface of the connecting shaft 805.

[0043] In this embodiment, Figure 5 As shown, the connecting shaft 805 is fixedly connected to a shift plate 807 at one end away from the bending mold 10, the outer surface of the rotating shaft 802 is fixedly connected to a fixed column 808, and the lower end of the fixed column 808 is fixedly connected to a counterweight block 809. When the rotating shaft 802 is shifted to drive the pawl 804 and the ratchet 803 to separate, the counterweight block 809 can drive the fixed column 808 to shift the rotating shaft 802 for reverse rotation due to the influence of its own gravity.

[0044] Compared with the existing technology, the folding plate 801 can always be attached to the bottom of the metal material during the segmented bending process of the metal material. Not only can the limiting position of the folding plate 801 on the metal material be adjusted in real time to ensure that the angle and position of each bending are accurate and consistent, effectively reducing the problem of inaccurate bending caused by human error, but also in the segmented bending process, each bending angle is small and the springback of the metal material is relatively small, so that the folding plate 801 can dynamically compensate for the springback according to the actual bending angle, ensuring the accuracy of the final bending angle of the metal material.

[0045] Among them, through the set dial plate 807, fixed column 808 and counterweight block 809, after the metal material is bent, the folding plates 801 on both sides can be automatically pulled to rotate in the opposite direction to the initial position, so that the surface of the folding plate 801 and the folding mold remain on the same horizontal line, which not only ensures that the starting position of each bend is consistent, thereby improving the repeatability and accuracy of the metal material bending, but also the folding plate 801 can automatically reset to the initial position after the metal material is bent, without the need for manual intervention, reducing the labor intensity and operation time of the staff, and improving the efficiency of metal material bending.

[0046] In other aspects, this embodiment also provides a bending position adjustment mechanism for controlling the bending area of ​​the metal material, such as Figure 1 、 Figure 4 、 Figure 6 and Figure 7As shown, the bending position adjustment mechanism includes a support plate 901, which is fixedly connected to the side wall of the bending mold 10. A movable groove 903 is provided on the upper end surface of the support plate 901, and a movable block 904 is slidably connected in the movable groove 903. The upper end surface of the movable block 904 is fixedly connected to a limiting plate 902.

[0047] In this embodiment, Figure 7 As shown, a clamping column 905 is slidably connected between the moving block 904 and the limiting plate 902, and a handle 907 is fixedly connected to the upper end of the clamping column 905. Clamping holes 908 are equidistantly provided at the bottom of the moving groove 903. The clamping holes 908 and the clamping columns 905 are clamped with each other. By driving the clamping columns 905 to be clamped into the clamping holes 908, the moving block 904 can be limited to a specified position inside the moving groove 903.

[0048] In this embodiment, Figure 6 As shown, the lower end surface of the handle 907 is fixedly connected to a spring 906, and the end of the spring 906 away from the handle 907 is fixedly connected to the upper end surface of the limit plate 902, and the spring 906 is sleeved on the outer surface of the clamping column 905. When the handle 907 is pulled to drive the clamping column 905 to rise, the spring 906 will be pulled synchronously. When the handle 907 is released, the rebound force of the spring 906 can automatically pull the handle 907 down, pushing the clamping column 905 to slide downward on the limit plate 902.

[0049] Compared with the existing technology, it can control the distance that the metal material passes from under the bending plate 6 during the bending process of the metal material, accurately control the passing distance of the metal material, and reduce errors caused by lack of experience or negligence of the staff. Even novice staff can quickly master the correct operation method through the precise control function, ensuring that each piece of metal material can be bent under the same conditions, reducing bending errors caused by inaccurate positioning, and thus ensuring the stability of the bending quality of the metal material.

[0050] The working process and principles involved in the overall content of the above embodiment are as follows:

[0051] When the handle 907 is lifted, the spring 906 connected between the handle 907 and the limit plate 902 can be pulled upward, and the handle 907 can be automatically pulled close to the limit plate 902 by the rebound force of the spring 906 connected between the handle 907 and the limit plate 902, so as to push the handle 907 down. The clamping column 905 connected to the end slides vertically downward on the limit plate 902 and the moving block 904, so that the clamping column 905 is again clamped into the clamping hole 908 opened at the bottom of the moving groove 903, and the position of the limit plate 902 is fixed. After the position of the limit plate 902 is fixed, the staff can place the metal material on the upper end surface of the bending mold 10, and then push the metal material to move in the direction of the limit plate 902 until the metal material and the limit plate 902 contact and cannot move further, and control the distance that the metal material passes from under the bending plate 6. The passing distance of the metal material is accurately controlled, which reduces the errors caused by the staff's lack of experience or negligence. Even novice staff can quickly master the correct operation method through the precise control function, ensure that each piece of metal material can be bent under the same conditions, reduce the bending error caused by inaccurate position, and thus ensure the stability of the bending quality of the metal material;

[0052] After the metal material is placed at the designated position on the upper end of the bending die 10, the staff can drive the stamping cylinder 4 to push the lifting plate 5 to descend vertically on the outer surface of the support column 2, driving the bending plate 6 connected to the lower end of the lifting plate 5 to stamp and bend the metal material below. After the lifting plate 5 descends to above the limit block 701, since the side wall of the limit block 701 is connected to the fixed block 704, and the upper end surface of the fixed block 704 is connected to the retraction button 705, the lifting plate 5 will press the retraction button 705 connected to the upper end surface of the fixed block 704, driving the stamping cylinder 4 to drive the lifting plate 5 to rise in the opposite direction, pulling The bending plate 6 connected to the lower end surface of the movable lifting plate 5 is separated from the metal material. After the bending plate 6 and the metal material are completely separated, the staff can turn the knob 712 to drive the threaded rod 711 to rotate on the side wall of the bending table 1. The threaded rod 711 is threadedly connected to the cross plate 703, so that the cross plate 703 moves horizontally on the outer surface of the threaded rod 711 away from the bending table 1, and at the same time pulls the sliding post 710 symmetrically connected on the cross plate 703 to slide out from the inside of the bending table 1. Since the sliding post 710 is connected to a slider 709 at one end away from the cross plate 703, there is a rotation connection between the slider 709 and the limit block 701. The connecting plate 702, therefore, during the sliding process of the sliding column 710, will pull the slider 709 to slide synchronously in the sliding groove 11, and at the same time pull the limit block 701 to descend on the outer surface of the support column 2 through the connecting plate 702. After the limit block 701 descends, the staff can drive the stamping cylinder 4 again, and drive the bending plate 6 to descend through the lifting plate 5 to perform a second stamping and bending on the metal material below. At this time, due to the change in the position of the limit block 701, the lifting plate 5 will also extend the distance it descends, so that the angle at which the bending plate 6 bends the metal material will also increase synchronously, and so on. The bending plate 6 performs segmented bending on the metal material, gradually increasing the bending angle, which not only allows for more precise control of springback at each stage, thereby effectively reducing the impact of springback on bending accuracy, but also gradually applies force through segmented stamping, which allows the metal material to be uniformly deformed at each stage, reduces local stress concentration, effectively avoids cracks or fractures in the metal material during the bending process, improves the reliability and quality of the bent product, and can reduce the force required for each stamping, thereby reducing wear on the bending plate 6 and the bending die 10, extending the service life of the bending die 10, and reducing production costs;

[0053] When the staff adjusts the height of the limit block 701 on the outer surface of the support column 2, as the limit block 701 slides, the limit block 701 can drive the pointer 708 connected to the side wall to move synchronously. Since the pointer 708 corresponds to the scale bar 707 connected to the side wall of the vertical plate 706, when the pointer 708 moves, the staff can accurately control the adjusted position of the limit block 701 through the scale bar 707 pointed by the pointer 708, and accurately control the distance that the bending plate 6 descends each time during the segmented bending process. During the segmented bending process, the staff can not only flexibly adjust the position of the limit block 701 according to different bending stages and material properties, and perform different segmented stamping and bending on the metal material, but also the design of the pointer 708 and the scale bar 707 makes it simple and quick to adjust the position of the limit block 701. The staff does not need complicated measuring tools, but only needs to adjust according to the scale to quickly complete the preparation work before each bending;

[0054] During the bending process of the metal material placed on the bending die 10, the folding plate 801 symmetrically arranged above the bending die 10 will rotate synchronously with the lower end surface of the metal material, and drive the rotating shaft 802 connected to the folding plate 801 to rotate on the bending die 10. During the rotation of the rotating shaft 802, the rotating shaft 802 will drive the ratchet 803 to rotate synchronously. At this time, the pawl 804 arranged on the outer surface of the ratchet 803 will not limit the ratchet 803. When the bent metal material between the two folding plates 801 rebounds, the folding plate 801 and the rotating shaft will rotate. 802 will be affected by the ratchet 803 and the pawl 804 and cannot rotate in the opposite direction, so that the folding plate 801 is always attached to the bottom of the metal material for limiting. Not only can the limiting position of the folding plate 801 on the metal material be adjusted in real time to ensure that the angle and position of each bending are accurate and consistent, effectively reducing the problem of inaccurate bending caused by human error, but also in the segmented bending process, each bending angle is small and the springback of the metal material is relatively small, so that the folding plate 801 can dynamically compensate for the springback according to the actual bending angle, ensuring the accuracy of the final bending angle of the metal material;

[0055] After the metal material placed between the folding plates 801 is bent, the staff can push the two side plates 807 upwards to drive the connecting shaft 805 to rotate on the side wall of the bending mold 10, driving the pawl 804 and the ratchet 803 connected to the outer surface of the connecting shaft 805 to separate, and at the same time squeeze the torsion spring 806 connected between the pawl 804 and the side wall of the bending mold 10. After the pawl 804 and the ratchet 803 are completely separated, the outer surface of the rotating shaft 802 is connected to the fixed column 808, and the lower end of the fixed column 808 is connected to the counterweight block 809, which is affected by the counterweight block 809 itself. Under the influence of gravity, it will automatically fall to the bottom, and then the fixed column 808 will drive the rotating shaft 802 to rotate in the opposite direction, driving the folding plate 801 connected to the rotating shaft 802 to rotate in the opposite direction to the initial position, so that the surface of the folding plate 801 and the folding mold are kept at the same horizontal line, which not only ensures the consistency of the starting position of each bend, thereby improving the repeatability and accuracy of the metal material bending, but also the folding plate 801 can automatically return to the initial position after the metal material is bent, without manual intervention, reducing the labor intensity and operation time of the staff, and improving the efficiency of the metal material bending;

[0056] After the folding plate 801 rotates to the initial position, the staff can release the shift plate 807. At this time, through the rebound force of the torsion spring 806 connected between the ratchet 803 and the bending mold 10, the pawl 804 can be shifted to drive the connecting shaft 805 to rotate in the opposite direction, so that the pawl 804 is again attached to the outer surface of the ratchet 803 and cooperates with the ratchet 803 to work.

[0057] The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the present invention to the specific embodiments described. Obviously, many modifications and variations are possible based on the content of this specification. These embodiments are selected and described in detail in this specification to better explain the principles and practical applications of the present invention, thereby enabling those skilled in the art to better understand and utilize the present invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A bending device for manufacturing metal materials, comprising a bending table (1), wherein a slide groove (11) is symmetrically provided on the upper end surface of the bending table (1), wherein the upper end surface of the bending table (1) is symmetrically fixedly connected with a support column (2), a top plate (3) is fixedly connected between the upper ends of the two support columns (2), a stamping cylinder (4) is fixedly connected to the lower end surface of the top plate (3), and a lifting plate (5) is fixedly connected to the output end of the stamping cylinder (4), wherein the lifting plate (5) is vertically slidably connected to the outer surfaces of the two support columns (2), a bending plate (6) is fixedly connected to the center of the lower end surface of the lifting plate (5), a bending die (10) is provided below the bending plate (6), and the bending die (10) is fixedly connected to the upper end surface of the bending table (1), characterized in that: It also includes a bending angle limiting mechanism, a bending material limiting mechanism and a bending position adjusting mechanism; The bending angle limiting mechanism comprises symmetrically arranged limit blocks (701), each of the limit blocks (701) being vertically slidably connected to the outer surface of the support column (2), and each of the limit blocks (701) being located below the lifting plate (5), and the bending angle limiting mechanism is used to control the descending height of the bending plate (6) to achieve segmented stamping bending; The bending material limiting mechanism comprises symmetrically arranged folding plates (801), each of the folding plates (801) being rotatably connected to the upper end surface of the bending die (10), each of the folding plates (801) being fixedly connected to a rotating shaft (802), one end of each of the rotating shafts (802) being rotatably connected to the bending die (10), and one end of each of the rotating shafts (802) being fixedly connected to a ratchet (803) passing through the bending die (10), and the two ratchets (803) being relatively close to each other. The sides are equipped with ratchets (804) for cooperation, the ratchets (804) are all fixedly connected with connecting shafts (805), the connecting shafts (805) are all rotatably connected to the side walls of the bending mold (10), and torsion springs (806) are fixedly connected between the ratchets (804) and the side walls of the bending mold (10), the torsion springs (806) are all sleeved on the outer surface of the connecting shafts (805), and the end of the connecting shafts (805) away from the bending mold (10) is fixedly connected with a shift plate. (807), the outer surface of the rotating shaft (802) is fixedly connected with a fixed column (808), the lower end of the fixed column (808) is fixedly connected with a counterweight (809), and the bending material limiting mechanism is used to limit the bent metal material; The bending position adjustment mechanism is used to control the bending area of ​​the metal material.

2. A bending device for metal material manufacturing according to claim 1, characterized in that: One side of the limit block (701) is rotatably connected to a connecting plate (702), and the side of the connecting plate (702) away from the limit block (701) is rotatably connected to a slider (709), and the sliders (709) are slidably connected in the slide groove (11), and the side of the slider (709) away from the support column (2) is fixedly connected to a sliding column (710), and the sliding columns (710) are slidably connected to the bending table (1), and a horizontal plate (703) is fixedly connected between the two sliding columns (710) passing through one end of the bending table (1).

3. The bending equipment for metal material manufacturing according to claim 2, characterized in that: A threaded rod (711) is threadedly connected through the center of the horizontal plate (703), and the threaded rod (711) is rotatably connected to the side wall of the bending table (1). The end of the threaded rod (711) away from the bending table (1) is fixedly connected to a knob (712).

4. The bending equipment for metal material manufacturing according to claim 1, characterized in that: A fixed block (704) is fixedly connected to one side opposite to the two limit blocks (701), and a retraction button (705) is fixedly connected to the upper end surface of each fixed block (704). The retraction button (705) is used to control the stamping cylinder (4) to retract.

5. The bending equipment for metal material manufacturing according to claim 4, characterized in that: A pointer (708) is fixedly connected to one of the limit blocks (701) on a side away from the fixed block (704); a vertical plate (706) is fixedly connected to the upper end surface of the bending table (1) at the pointer (708); and a scale bar (707) is fixedly connected to the side of the vertical plate (706) close to the pointer (708) at equal distances.

6. The bending equipment for metal material manufacturing according to claim 1, characterized in that: The bending position adjustment mechanism comprises a support plate (901), the support plate (901) being fixedly connected to the side wall of the bending die (10), a movable groove (903) being provided on the upper end surface of the support plate (901), a movable block (904) being slidably connected in the movable groove (903), and the upper end surface of the movable block (904) being fixedly connected to the limiting plate (902).

7. The bending equipment for metal material manufacturing according to claim 6, characterized in that: A clamping column (905) is slidably connected between the moving block (904) and the limiting plate (902), and a handle (907) is fixedly connected to the upper end of the clamping column (905). Clamping holes (908) are equidistantly provided at the bottom of the moving groove (903), and the clamping holes (908) and the clamping column (905) are clamped to each other.

8. The bending equipment for metal material manufacturing according to claim 7, characterized in that: The lower end surface of the handle (907) is fixedly connected to a spring (906), one end of the spring (906) away from the handle (907) is fixedly connected to the upper end surface of the limiting plate (902), and the spring (906) is sleeved on the outer surface of the clamping column (905).

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