Flexible bending machine lower die structure with adjustable bending angle

Abstract

The utility model discloses the flexible bending machine lower mould structure of adjustable bending angle belongs to metal sheet processing field. The flexible bending machine lower mould structure of adjustable bending angle, including a pair of turnover board, the side surface welding of two turnover boards is provided with transmission piece, the lower extreme of transmission piece outside is provided with the protection board. The utility model solves the problem that the frequent turnover of turnover board can cause the excessive friction of the contact position of turnover board and lower extreme, and the service life of turnover board is reduced in the process of using the existing bending machine lower mould, the utility model turnover board can first rotate with transmission piece as the center, and the fixation of the turnover board is realized after the penetration of bolt to second reserved hole and second fixed hole and the angle adjustment, and the rotation back support piece can be penetrated first reserved hole and first fixed hole and fixed by another bolt, improve the carrying capacity of turnover board, and adapt to the bending demand.

Description

Technical Field

[0001] This utility model relates to the field of metal sheet processing, specifically to a flexible bending machine lower die structure with adjustable bending angle. Background Technology

[0002] An adjustable bending angle lower die is a key mold component used in bending machines. It is adjustable and can change the bending angle according to different processing requirements. It can adapt to bending operations of workpieces of various shapes and sizes. By adjusting the angle or related parameters of the lower die, precise and diverse bending effects of workpieces can be achieved. This type of lower die is widely used in metal sheet processing and is an important tool to meet the needs of personalized and small-batch production. It plays an important role in improving product quality and production efficiency.

[0003] Chinese patent CN214161109U discloses an adjustable-opening, scratch-free flip-plate lower die for a large bending machine, including a die base, an adjustable flip-plate seat, and a flip plate. The upper surface of the die base is machined with a U-shaped groove. The adjustable flip-plate seat is located in the U-shaped groove and is detachably connected to the die base. Two adjustable flip-plate seats are symmetrically arranged in the U-shaped groove. This utility model can avoid scratches on the surface of the steel plate during the bending operation, and at the same time ensure the machining accuracy of the straight edge of the workpiece.

[0004] During the use of the lower die of the aforementioned patented bending machine, the frequent flipping of the flipping plate will cause excessive friction between the flipping plate and the lower contact point, which will easily reduce the service life of the flipping plate. Furthermore, the flipping plate is not restricted, which affects the stability during bending. Utility Model Content

[0005] The purpose of this invention is to provide a flexible bending machine lower die structure with adjustable bending angle. The flip plate can first rotate around the transmission plate as the center. Bolts pass through the second reserved hole and the second fixing hole to fix the flip plate after the angle is adjusted. After the angle is adjusted, the support plate can rotate and directly fit against the side of the lower end of the flip plate. After rotation, the support plate can be fixed by another bolt passing through the first reserved hole and the first fixing hole. This improves the load-bearing capacity of the flip plate and adapts to bending requirements, solving the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a flexible bending machine lower die structure with adjustable bending angle, comprising a pair of flip plates, transmission plates welded to the sides of the two flip plates, a protective plate provided at the lower end of the outer side of the transmission plates, extension plates provided at the front and rear ends of the protective plate facing the transmission plates, and second fixing holes provided through the interior of the two extension plates facing the transmission plates, and second reserved holes evenly distributed around the side of the transmission plates, with the second reserved holes having the same diameter as the second fixing holes. When adjusting the angle of the flip plates, the flip plates can drive the transmission plates to rotate, and the transmission plates can rotate at the upper end of the protective plate to adjust the angle of the flip plates.

[0007] Preferably, a support plate is provided on the other side of the outer side of the protective plate, and connecting plates are welded to both the front and rear ends of the support plate. The support plate can lift and support the lower end of the flip plate.

[0008] Preferably, both connecting pieces are located at the front and rear ends of the protective plate, and the connecting pieces are rotatably connected to the protective plate. The rotation of the connecting pieces can drive the support piece to adjust its angle.

[0009] Preferably, the rotational connection position of the protective plate and the connecting piece overlaps with the rotational position of the transmission piece. This overlap in rotational positions facilitates the simultaneous lifting and support of the flipping plate by the support piece after the angle of the flipping plate is adjusted, thus providing support for the flipping plate.

[0010] Preferably, the connecting piece has a first reserved hole that extends through the interior, and the protective plate has a first fixing hole recessed at both ends facing the first reserved hole. The reserved first fixing hole and the first reserved hole facilitate subsequent penetration and fixing of the connecting piece.

[0011] Preferably, bolts are provided through the first fixing hole and the first reserved hole, and bolts are provided through the second reserved hole and the second fixing hole. The two bolts are respectively inserted into the first fixing hole and the second fixing hole to fix the flip plate and the support plate after the angle is adjusted.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] When in use, the flip plate of this utility model can first rotate around the transmission plate as the center. The rotation of the transmission plate can adjust the overlap state of the second reserved hole and the second fixed hole, which can facilitate the bolt to pass through the second reserved hole and the second fixed hole and fix the flip plate after the angle is adjusted. After the angle is adjusted, the support plate can rotate and directly fit against the side of the lower end of the flip plate. After rotation, the support plate can be fixed by another bolt passing through the first reserved hole and the first fixed hole. The support plate can lift the flip plate, which can improve the load-bearing capacity of the flip plate and adapt to the need for long-term bending. After adjusting the angle of the flip plate, the threaded rod can be rotated independently, so that the threaded rod drives the flip plate to adjust the spacing, which can further adapt to bending needs and different bending conditions. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall external structure of this utility model;

[0015] Figure 2 For the present utility model Figure 1 Enlarged view of a portion of region A in the middle;

[0016] Figure 3 This is a schematic diagram of the threaded rod transmission structure of this utility model;

[0017] Figure 4 This is a cross-sectional view showing the positional relationship of the transmission plates in this utility model;

[0018] Figure 5 This is a schematic diagram of the bolt installation trajectory of this utility model;

[0019] Figure 6 For the present utility model Figure 5 Enlarged view of a portion of region B in the middle;

[0020] Figure 7 This is a schematic diagram of the external structure of the support sheet of this utility model.

[0021] In the diagram: 1. Base; 2. Adjusting block; 3. Protective plate; 4. Flip plate; 5. Transmission plate; 6. Support plate; 7. Connecting plate; 8. Extension plate; 9. Arc surface; 10. First reserved hole; 11. Second reserved hole; 12. First fixing hole; 13. Second fixing hole; 14. Bolt; 15. Threaded rod; 16. Sliding rod. Detailed Implementation

[0022] The present invention will be further described below with reference to specific embodiments.

[0023] like Figure 1As shown, the adjustable bending angle flexible bending machine lower die structure of this embodiment includes a flip plate 4. A pair of flip plates 4 are mirror images of each other. The sides of the two flip plates 4 are provided with transmission plates 5, and the transmission plates 5 are welded and fixed to the flip plates 4. When the flip plates 4 rotate to adjust the angle, the flip plates 4 and the transmission plates 5 can rotate simultaneously with the transmission plates 5 as the center, and the rotation can adapt to different bending requirements.

[0024] Furthermore, a protective plate 3 is provided at the lower end of the outer side of the transmission plate 5. Extension plates 8 are provided at both ends of the protective plate 3 facing the transmission plate 5, and the extension plates 8 are welded and fixed to the protective plate 3. When the transmission plate 5 rotates, it rotates between a pair of extension plates 8 to adjust its angle. A second fixing hole 13 is provided through the interior of both extension plates 8 facing the transmission plate 5. Second reserved holes 11 are evenly distributed around the side of the transmission plate 5, and the diameter of the second reserved holes 11 is the same as that of the second fixing holes 13. After the transmission plate 5 rotates around its own center, one of the second reserved holes 11 and the second fixing hole 13 overlap, facilitating penetration and fixation.

[0025] It is worth mentioning that a support plate 6 is provided on the other side of the outer side of the protective plate 3. A connecting plate 7 is provided at both the front and rear ends of the support plate 6, and the connecting plate 7 is welded and fixed to the support plate 6. Both connecting plates 7 are located at the front and rear ends of the protective plate 3. The connecting plate 7 is rotatably connected to the protective plate 3, and the rotatable connection position between the protective plate 3 and the connecting plate 7 overlaps with the rotation position of the transmission plate 5.

[0026] In this embodiment, as Figure 7 As shown, the rotation of the connecting piece 7 can directly drive the support piece 6 to adjust its position, so that the support piece 6 can continuously adhere to and support the flip plate 4 after the angle adjustment. In order to fix the support piece 6 after the angle adjustment, the connecting piece 7 has a first reserved hole 10 through it. The front and rear ends of the protective plate 3 are recessed with the first fixing hole 12 facing the first reserved hole 10. After the connecting piece 7 is rotated and the support piece 6 is adjusted, one of the first reserved holes 10 and the first fixing hole 12 overlap, which can facilitate the penetration and fixation.

[0027] To facilitate the fixing of the tilting plate 4 and the support plate 6 after angle adjustment, such as Figure 2 , Figure 4 , Figure 5 and Figure 6 As shown, bolts 14 are installed through the first fixing hole 12 and the first reserved hole 10, and bolts 14 are installed through the second reserved hole 11 and the second fixing hole 13. The throughness of the two bolts 14 facilitates the fixing of the flip plate 4 and the support plate 6 after the angle is adjusted.

[0028] To further adjust the distance between the two flip plates 4 after adjusting their angle, a base 1 is provided at the lower end of the two protective plates 3. When adjusting the distance between the two flip plates 4, the protective plates 3 can be adjusted within the base 1. Figure 3 As shown, a threaded rod 15 is transversely inserted through the middle of the two protective plates 3. The threaded rod 15 is a bidirectional threaded rod, and the outside of the threaded rod 15 is threadedly engaged with the through position of the protective plate 3. After the threaded rod 15 is rotated, it can generate relative movement with the protective plate 3.

[0029] To facilitate the position adjustment of the protective plate 3, sliding rods 16 are provided on both sides of the threaded rod 15, and the sliding rods 16 pass through and extend to both sides of the protective plate 3. The protective plate 3 and the sliding rods 16 are slidably connected at the through position. After the protective plate 3 and the threaded rod 15 move relative to each other, the sliding rods 16 restrict the protective plate 3 so that the rotational motion can be changed into the lateral linear motion, and the spacing can be directly and stably adjusted.

[0030] To facilitate the rotation of the threaded rod 15, an adjustment block 2 is provided on one side of the base 1, and the adjustment block 2 is welded and fixed to the threaded rod 15. The protruding adjustment block 2 can drive the threaded rod 15 to rotate actively, and the rotation can also adapt to the adjustment of the spacing of the flip plate 4.

[0031] To prevent damage to the metal sheet caused by the protrusion of the flip plate 4 surface during bending, curved surfaces 9 are provided on both sides of the flip plate 4. The reserved curved surfaces 9 can facilitate the use of the flip plate 4 in the process of bending metal.

[0032] Working principle: When adjusting the angle using the lower die structure of the flexible bending machine, the flip plate 4 rotates around the center of the transmission plate 5 to adjust the bending angle. After adjusting the angle of the flip plate 4, one of the bolts 14 is twisted to pass through the second fixing hole 13 and the second reserved hole 11 in sequence, thus fixing the flip plate 4 after the angle adjustment. The connecting plate 7 drives the support plate 6 to rotate, so that the support plate 6 fits against the lower end of the flip plate 4 after the angle adjustment. The other bolt 14 is twisted to pass through the first reserved hole 10 and the first fixing hole 12 in sequence, thus fixing the support plate 6 after the angle adjustment. The support plate 6 can support the tilted flip plate 4. When adjusting the spacing of the flip plates 4 after the angle adjustment, the rotation of the threaded rod 15 can simultaneously generate relative movement with the two protective plates 3. The threaded rod 15 is a two-way threaded rod. After the protective plates 3 are restricted by the sliding rod 16, the protective plates 3 can change from rotational movement to lateral relative movement, directly adjusting the spacing between the two flip plates 4 after the angle change, which can further adapt to the bending requirements of different metal materials.

[0033] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0034] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention.

Claims

1. A flexible bending machine lower die structure with adjustable bending angle, comprising a pair of flipping plates (4), characterized in that, The two flip plates (4) are welded with transmission plates (5) on their sides. The lower end of the transmission plate (5) is provided with a protective plate (3). The front and rear ends of the protective plate (3) are provided with extension plates (8) facing the transmission plate (5). The interior of the two extension plates (8) is provided with a second fixing hole (13) through the transmission plate (5). The side of the transmission plate (5) is evenly distributed with second reserved holes (11), and the second reserved holes (11) have the same diameter as the second fixing holes (13).

2. The adjustable bending angle flexible bending machine lower die structure according to claim 1, characterized in that, A support plate (6) is provided on the other side of the protective plate (3), and connecting plates (7) are welded to both the front and rear ends of the support plate (6).

3. The adjustable bending angle flexible bending machine lower die structure according to claim 2, characterized in that, Both connecting pieces (7) are located at the front and rear ends of the protective plate (3), and the connecting pieces (7) are rotatably connected to the protective plate (3).

4. The adjustable bending angle flexible bending machine lower die structure according to claim 3, characterized in that, The rotational connection position of the protective plate (3) and the connecting piece (7) overlaps with the rotational position of the transmission piece (5).

5. The adjustable bending angle flexible bending machine lower die structure according to claim 4, characterized in that, The connecting piece (7) has a first reserved hole (10) that runs through its interior, and the protective plate (3) has a first fixing hole (12) recessed on the front and rear ends facing the first reserved hole (10).

6. The adjustable bending angle flexible bending machine lower die structure according to claim 5, characterized in that, Bolts (14) are provided through the first fixing hole (12) and the first reserved hole (10), and bolts (14) are provided through the second reserved hole (11) and the second fixing hole (13).

Images