Sheet bending device

Abstract

The utility model relates to the field of machining, and the utility model aims at providing a sheet material bending device, solves the problem of insufficient sheet material bending precision, and the utility model provides a sheet material bending device, including first bending mechanism, second bending mechanism, third bending mechanism and positioning mechanism, first bending mechanism and second bending mechanism are arranged at the both ends of positioning mechanism respectively, and third bending mechanism is arranged on the second bending mechanism and slides, second bending block is arranged on the sliding plate, first hydraulic cylinder drives first bending block and is pressed against the first end bending of sheet material, second hydraulic cylinder indirectly drives second bending block and is pressed against the second end bending of sheet material, third hydraulic cylinder drives third bending block and is pressed against the second end of sheet material after bending, sheet material is accurate bending each time, the angle of sheet material bending can all be set, that is to say, sheet material bending is accurate, and therefore solve the problem of insufficient sheet material bending precision.

Description

Technical Field

[0001] This utility model relates to the field of machining, and in particular to a sheet bending device. Background Technology

[0002] In mass production, some sheets need to be bent. Bending a large number of sheets into a uniform shape is a non-standard operation. Usually, people use equipment to bend the sheets. However, manual bending is not only slow, but also lacks precision. Utility Model Content

[0003] The purpose of this invention is to provide a sheet bending device that solves the problem of insufficient sheet bending accuracy.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows: This utility model provides a sheet bending device, including a first bending mechanism, a second bending mechanism, a third bending mechanism, and a positioning mechanism. The first bending mechanism and the second bending mechanism are respectively disposed at both ends of the positioning mechanism, and the third bending mechanism is slidably disposed on the second bending mechanism. The first bending mechanism includes a first hydraulic cylinder and a first bending block, wherein the first bending block is connected to the drive end of the first hydraulic cylinder; The second bending mechanism includes a second hydraulic cylinder, a second bending block, and a sliding plate. The sliding plate is connected to the drive end of the second hydraulic cylinder, and the second bending block is disposed on the sliding plate. The third bending mechanism includes a third hydraulic cylinder and a third bending block. The third hydraulic cylinder is mounted on the slide plate, and the third bending block is connected to the drive end of the third hydraulic cylinder. The positioning mechanism includes a first positioning plate, a second positioning plate, and a base plate. The first positioning plate and the second positioning plate are arranged side by side on the base plate, and a clamping groove is formed between the first positioning plate and the second positioning plate. The clamping groove is used to insert the sheet. The first hydraulic cylinder drives the first bending block to bend against the first end of the sheet, and the second hydraulic cylinder indirectly drives the second bending block to bend against the second end of the sheet. There is an angle between the directions of movement of the second bending block and the third bending block, and the third hydraulic cylinder drives the third bending block to bend against the second end of the bent sheet.

[0005] Optionally, it also includes a worktable, on which the first bending mechanism, the second bending mechanism, the third bending mechanism and the positioning mechanism are disposed.

[0006] Furthermore, the first bending mechanism also includes a first slide rail and a first slider. The first slide rail is disposed on the worktable, the first slider is slidably disposed on the first slide rail, and the first bending block is disposed on the first slider.

[0007] Furthermore, the positioning mechanism also includes a fourth hydraulic cylinder, a bracket, and a push plate. A through hole is provided on the worktable, a base plate is provided at the through hole, the bracket is provided on the bottom surface of the base plate, the fourth hydraulic cylinder is provided on the bracket, the push plate is provided at the drive end of the fourth hydraulic cylinder, a first push rod and a second push rod are provided on the push plate, a first top hole and a second top hole are provided on the base plate, the first push rod is provided in the first top hole, the second push rod is provided in the second top hole, and the top ends of the first push rod and the second push rod are aligned with the bent wire.

[0008] Furthermore, the bracket includes a first side column, a second side column, and a support plate. The top ends of the first side column and the second side column are connected to the bottom surface of the base plate, and the bottom ends of the first side column and the second side column are connected to the support plate. The push plate is slidably disposed on the first side column and the second side column, and the fourth hydraulic cylinder is disposed on the support plate.

[0009] Optionally, the second bending mechanism further includes a positioning block disposed on the slide plate and located in the extending direction of the clamping groove.

[0010] Optionally, the second bending block is a cylinder.

[0011] Optionally, the third bending mechanism further includes a limiting block, which is disposed on the slide plate and has a sliding hole, and the third bending block is slidably disposed in the sliding hole.

[0012] Optionally, the positioning mechanism further includes an auxiliary plate located in the extension direction of the second positioning plate and close to the first bending mechanism.

[0013] Optionally, the first positioning plate has an inclined surface, the inclined surface and the clamping groove are respectively located at both ends of the first positioning plate, the thick end of the first positioning plate is aligned with the second bending mechanism, and the thin end of the first positioning plate is aligned with the first bending mechanism.

[0014] Due to the application of the above technical solution, this utility model has the following advantages compared with the prior art: This utility model discloses a sheet bending device. A first hydraulic cylinder drives a first bending block to press against the first end of the sheet, causing the first end of the sheet to bend. A second hydraulic cylinder indirectly drives a second bending block to press against the second end of the sheet, causing the second end of the sheet to bend. A third hydraulic cylinder drives a third bending block to press against the second end of the bent sheet, causing the second end of the sheet to continue bending. The sheet is bent precisely each time, and the bending angle can be set, meaning the sheet bending is precise. Therefore, this solves the problem of insufficient sheet bending accuracy. Attached Figure Description

[0015] The following sections will describe some specific embodiments of the present invention in a detailed manner by way of example and not limitation, with reference to the accompanying drawings. The same reference numerals in the drawings denote the same or similar parts or components. Those skilled in the art should understand that these drawings are not necessarily drawn to scale. In the drawings: Figure 1 This is a perspective view of a sheet bending device according to a preferred embodiment of the present invention; Figure 2 yes Figure 1 A stereoscopic view from a second perspective, as shown; Figure 3 This is a three-dimensional view of the second and third bending mechanisms; Figure 4 yes Figure 1 The stereoscopic view shown is from a third-person perspective. Figure 5 yes Figure 1 A three-dimensional view of the positioning mechanism shown; Figure 6 yes Figure 5 A second-angle perspective stereoscopic view of the positioning mechanism shown; Figure 7 This is a three-dimensional view of the limiting block.

[0016] The reference numerals in the attached figures are explained as follows: 1. First bending mechanism; 2. Second bending mechanism; 3. Third bending mechanism; 4. Positioning mechanism; 5. Wire; 6. Worktable; 11. First hydraulic cylinder; 12. First bending block; 13. First slide rail; 14. First slider; 21. Second hydraulic cylinder; 22. Second bending block; 23. Slide plate; 24. Positioning block; 25. First guide rail; 26. Second guide rail; 31. Third hydraulic cylinder; 32. Third bending block; 33. Limiting block; 34. Sliding hole; 41. First positioning plate; 42. Second positioning plate; 43. Base plate; 44. Gutter; 45. Auxiliary plate; 46. Inclined surface; 47. Fourth hydraulic cylinder; 48. Bracket; 49. Push plate; 61. Through hole; 431. First top hole; 432. Second top hole; 491. First top rod; 492. Second top rod; 481. First side column; 482. Second side column; 483. Support plate; 251. First slide block; 252. Second slide block; 261. Third slide block; 262. Fourth slide block. Detailed Implementation

[0017] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0018] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0019] Furthermore, the technical features involved in the different embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.

[0020] like Figure 1 and Figure 2 and Figure 3As shown, a sheet bending device includes a first bending mechanism 1, a second bending mechanism 2, a third bending mechanism 3, and a positioning mechanism 4. The first bending mechanism 1 and the second bending mechanism 2 are respectively disposed at both ends of the positioning mechanism 4. The third bending mechanism 3 is disposed on the second bending mechanism 2 and is mounted on the second bending mechanism 2 by screws. The third bending mechanism 3 can rotate on the second bending mechanism 2.

[0021] The first bending mechanism 1 includes a first hydraulic cylinder 11 and a first bending block 12. The first bending block 12 is connected to the drive end of the first hydraulic cylinder 11. The first hydraulic cylinder 11 drives the first bending block 12 to move back and forth. The first bending block 12 is aligned with the first end of the wire 5. The first end of the wire 5 is located on the moving path of the first bending block 12.

[0022] The second bending mechanism 2 includes a second hydraulic cylinder 21, a second bending block 22, and a sliding plate 23. The sliding plate 23 is connected to the drive end of the second hydraulic cylinder 21. The second bending block 22 is mounted on the sliding plate 23 by screws. The second hydraulic cylinder 21 drives the sliding plate 23 to move back and forth, and the sliding plate 23 drives the second bending block 22 to move. The second bending block 22 is aligned with the second end of the wire 5, and the second end of the wire 5 is located on the moving path of the second bending block 22.

[0023] The third bending mechanism 3 includes a third hydraulic cylinder 31 and a third bending block 32. The third hydraulic cylinder 31 is rotatably mounted on the slide plate 23 and is mounted on the slide plate 23 by screws. The third bending block 32 is connected to the drive end of the third hydraulic cylinder 31 and the third hydraulic cylinder 31 drives the third bending block 32 to move.

[0024] The positioning mechanism 4 includes a first positioning plate 41, a second positioning plate 42, and a base plate 43. The first positioning plate 41 and the second positioning plate 42 are arranged side by side on the base plate 43 and are fixed to the base plate 43 by screws. A clamping groove 44 is formed between the first positioning plate 41 and the second positioning plate 42. The clamping groove 44 is used to place the sheet 5. The sheet 5 is placed in the clamping groove 44 in advance. The first positioning plate 41 and the second positioning plate 42 have a limiting effect on the sheet 5 and also have a clamping effect on the sheet 5. The two ends of the sheet 5 are located at the outer edges of the two ends of the base plate 43, respectively.

[0025] The first hydraulic cylinder 11 drives the first bending block 12 to press against the first end of the sheet 5, causing the first end of the sheet 5 to bend. The second hydraulic cylinder 21 indirectly drives the second bending block 22 to press against the second end of the sheet 5, causing the second end of the wire 5 to bend. There is an angle between the moving directions of the second bending block 22 and the third bending block 32. After bending, the second end of the wire 5 is located on the moving path of the third bending block 32. The third hydraulic cylinder 31 drives the third bending block 32 to press against the second end of the sheet 5 after bending, causing the second end of the sheet 5 to continue to bend. The second end of the sheet 5 bends in different directions twice, and the bent sheet 5 is taken out from the clamping groove 44.

[0026] The system includes a workbench 6, a first bending mechanism 1, a second bending mechanism 2, a third bending mechanism 3, and a positioning mechanism 4, all of which are fixed to the workbench 6 with screws. The workbench 6 is convenient for workers to operate.

[0027] The first bending mechanism 1 also includes a first slide rail 13 and a first slider 14. The first slide rail 13 is disposed on the worktable 6, and the first slider 14 is slidably disposed on the first slide rail 13. The first bending block 12 is disposed on the first slider 14. In this way, the first bending block 12 is lifted by the first slider 14, and the first slider 14 slides on the first slide rail 13, making the movement of the first bending block 12 more stable.

[0028] The second bending mechanism 2 also includes a first guide rail 25 and a second guide rail 26 arranged in parallel. The first guide rail 25 and the second guide rail 26 are arranged on the worktable 6. The slide plate 23 is slidably arranged on the first guide rail 25 and the second guide rail 26. The first guide rail 25 and the second guide rail 26 jointly support the slide plate 23, so that the slide plate 23 remains balanced during movement.

[0029] The second bending mechanism 2 also includes a first slide 251, a second slide 252, a third slide 261, and a fourth slide 262. The first slide 251 and the second slide 252 are slidably mounted on the first guide rail 25, and the third slide 261 and the fourth slide 262 are slidably mounted on the second guide rail 26. The slide plate 23 is mounted on the first slide 251, the second slide 252, the third slide 261, and the fourth slide 262. The slide plate 23 is supported at multiple positions, and the slide plate 23 can better maintain its balance.

[0030] The second bending mechanism 2 also includes a positioning block 24, which is disposed on the slide plate 23. The positioning block 24 is located in the extension direction of the clamping groove 44, and the wire 5 is placed in the clamping groove 44. In this example, the second end of the wire 5 initially abuts against the positioning block 24.

[0031] The second bending block 22 is a cylinder, so the second bending block 22 and the wire 5 are in point contact or line contact.

[0032] like Figure 4 and Figure 5 and Figure 6 As shown, the positioning mechanism 4 also includes a fourth hydraulic cylinder 47, a bracket 48, and a push plate 49. A through hole 61 is provided on the worktable 6, a base plate 43 is located at the through hole 61, the bracket 48 is located on the bottom surface of the base plate 43, the fourth hydraulic cylinder 47 is located on the bracket 48, and the push plate 49 is located at the drive end of the fourth hydraulic cylinder 47. A first push rod 491 and a second push rod 492 are provided on the push plate 49. A first top hole 431 and a second top hole 432 are provided on the base plate 43, through which the first push rod 491 passes. Inside the first top hole 431, the second top rod 492 is set inside the second top hole 432. The top ends of the first top rod 491 and the second top rod 492 are aligned with the bent wire 5. The bent wire 5 is located at the top ends of the first top rod 491 and the second top rod 492. When the wire 5 is to be removed, the fourth hydraulic cylinder 47 drives the push plate 49 to move. The push plate 49 drives the first top rod 491 and the second top rod 492 to move upward. The first top rod 491 and the second top rod 492 lift the bent wire 5.

[0033] The bracket 48 includes a first side column 481, a second side column 482, and a support plate 483. The top ends of the first side column 481 and the second side column 482 are connected to the base plate 43, and the bottom ends of the first side column 481 and the second side column 482 are connected to the support plate 483. The fourth hydraulic cylinder 47 is fixed to the base plate 43 by screws. The push plate 49 is slidably disposed on the first side column 481 and the second side column 482 and is sleeved on the first side column 481 and the second side column 482.

[0034] The positioning mechanism 4 also includes an auxiliary plate 45, which is located in the extension direction of the second positioning plate 42. The auxiliary plate 45 is close to the first bending mechanism 1. According to the bending requirements of the wire 5, the auxiliary plate 45 can be detachably fixed on the base plate 43. The auxiliary plate 45 is fixed on the base plate 43 by screws. The auxiliary plate 45 can be replaced with different lengths.

[0035] The first positioning plate 41 has an inclined surface 46. The inclined surface 46 and the clamping groove 44 are located at both ends of the first positioning plate 41. The thick end of the first positioning plate 41 is aligned with the second bending mechanism 2, and the thin end of the first positioning plate 41 is aligned with the first bending mechanism 1. Because the limiting block 33 and the third hydraulic cylinder 31 are rotatably mounted on the sliding plate 23, the third bending block 32 can also tilt and move, so that the tilt angle of the third bending block 32 is the same as the tilt angle of the inclined surface 46. In this way, the third bending block 32 can press the wire 5 against the inclined surface 46, and the second end of the wire 5 is formed by a second bend.

[0036] like Figure 7As shown, the third bending mechanism 3 also includes a limiting block 33, which is rotatably mounted on the slide plate 23. The limiting block 33 is provided with a sliding hole 34, and the third bending block 32 is slidably mounted in the sliding hole 34. The sliding hole 34 has a guiding effect on the third bending block 32.

[0037] The above embodiments are only for illustrating the technical concept and features of this utility model. Their purpose is to enable those skilled in the art to understand the content of this utility model and implement it accordingly. They should not be used to limit the protection scope of this utility model. All equivalent changes or modifications made in accordance with the spirit and essence of this utility model should be included within the protection scope of this utility model.

Claims

1. A sheet bending device, comprising a first bending mechanism (1), a second bending mechanism (2), a third bending mechanism (3), and a positioning mechanism (4), wherein the first bending mechanism (1) and the second bending mechanism (2) are respectively disposed at both ends of the positioning mechanism (4), and the third bending mechanism (3) is disposed on the second bending mechanism (2), characterized in that, The first bending mechanism (1) includes a first hydraulic cylinder (11) and a first bending block (12), wherein the first bending block (12) is connected to the drive end of the first hydraulic cylinder (11); The second bending mechanism (2) includes a second hydraulic cylinder (21), a second bending block (22) and a sliding plate (23). The sliding plate (23) is connected to the drive end of the second hydraulic cylinder (21), and the second bending block (22) is disposed on the sliding plate (23). The third bending mechanism (3) includes a third hydraulic cylinder (31) and a third bending block (32). The third hydraulic cylinder (31) is rotatably mounted on the slide plate (23), and the third bending block (32) is connected to the drive end of the third hydraulic cylinder (31). The positioning mechanism (4) includes a first positioning plate (41), a second positioning plate (42) and a base plate (43). The first positioning plate (41) and the second positioning plate (42) are arranged side by side on the base plate (43). A clamping groove (44) is formed between the first positioning plate (41) and the second positioning plate (42). The clamping groove (44) is used to insert the sheet. The first hydraulic cylinder (11) drives the first bending block (12) to press against the first end of the sheet, and the second hydraulic cylinder (21) indirectly drives the second bending block (22) to press against the second end of the sheet. There is an angle between the direction of movement of the second bending block (22) and the third bending block (32), and the third hydraulic cylinder (31) drives the third bending block (32) to press against the second end of the sheet after bending.

2. The sheet bending device according to claim 1, characterized in that, It also includes a worktable (6) on which the first bending mechanism (1), the second bending mechanism (2), the third bending mechanism (3) and the positioning mechanism (4) are disposed.

3. The sheet bending device according to claim 2, characterized in that, The first bending mechanism (1) further includes a first slide rail (13) and a first slider (14). The first slide rail (13) is disposed on the worktable (6), the first slider (14) is slidably disposed on the first slide rail (13), and the first bending block (12) is disposed on the first slider (14).

4. The sheet bending device according to claim 2, characterized in that, The positioning mechanism (4) further includes a fourth hydraulic cylinder (47), a bracket (48), and a push plate (49). The worktable (6) is provided with a through hole (61). The base plate (43) is provided at the through hole (61). The bracket (48) is provided on the bottom surface of the base plate (43). The fourth hydraulic cylinder (47) is provided on the bracket (48). The push plate (49) is provided at the driving end of the fourth hydraulic cylinder (47). The push plate (49) is provided with a first push rod (491) and a second push rod (492). The base plate (43) is provided with a first top hole (431) and a second top hole (432). The first push rod (491) is provided in the first top hole (431), and the second push rod (492) is provided in the second top hole (432). The top ends of the first push rod (491) and the second push rod (492) are aligned with the bent wire.

5. The sheet bending device according to claim 4, characterized in that, The bracket (48) includes a first side column (481), a second side column (482), and a support plate (493). The top ends of the first side column (481) and the second side column (482) are connected to the bottom surface of the base plate (43), and the bottom ends of the first side column (481) and the second side column (482) are connected to the support plate (493). The push plate (49) is slidably disposed on the first side column (481) and the second side column (482), and the fourth hydraulic cylinder (47) is disposed on the support plate (493).

6. The sheet bending device according to claim 1, characterized in that, The second bending mechanism (2) further includes a positioning block (24), which is disposed on the slide plate (23) and is located in the extension direction of the clamping groove (44).

7. The sheet bending device according to claim 1, characterized in that, The second bending block (22) is a cylinder.

8. The sheet bending device according to claim 1, characterized in that, The third bending mechanism (3) further includes a limiting block (33), which is rotatably mounted on the slide plate (23). The limiting block (33) is provided with a sliding hole (34), and the third bending block (32) is slidably mounted in the sliding hole (34).

9. The sheet bending device according to claim 1, characterized in that, The positioning mechanism (4) further includes an auxiliary plate (45), which is located in the extension direction of the second positioning plate (42) and is close to the first bending mechanism (1).

10. The sheet bending device according to claim 1, characterized in that, The first positioning plate (41) has an inclined surface (46), the inclined surface (46) and the clamping groove (44) are located at both ends of the first positioning plate (41), the thick end of the first positioning plate (41) is aligned with the second bending mechanism (2), and the thin end of the first positioning plate (41) is aligned with the first bending mechanism (1).

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