Novel metal plate material 180-degree bending mechanism

Abstract

The utility model discloses a novel metal plate material 180-degree bending mechanism which comprises a rack, a placing table used for horizontally placing a metal plate material is arranged on the rack, a bending mechanism used for bending the metal plate material is arranged at the position, at the front end of the placing table, of the rack, and the bending mechanism comprises an upper cutter arranged on the rack. The rack is provided with a lower cutter matched with the upper cutter through a telescopic mechanism, the rack is provided with a positioning plate used for abutting against and positioning the end of a metal plate material, the rack is provided with a bending assembly used for bending the metal plate material, and the bending assembly is connected with the positioning plate through a linkage mechanism; the linkage mechanism is used for removing the positioning plate when the bending assembly is bent; by means of the metal plate bending device, 180-degree bending of metal plate materials can be achieved, one-time clamping and bending forming can be achieved, the bending die does not need to be replaced, the bending efficiency is greatly improved, and bending of various shapes can be achieved through different machining process combinations.

Description

Technical Field

[0001] The utility model relates to the technical field related to sheet metal bending, and in particular to a novel 180-degree bending mechanism for sheet metal materials. Background Art

[0002] In sheet metal bending applications, it is often necessary to bend the sheet metal 180°. One reason is to make the edge of the sheet metal smooth and not hurt the hands. The other reason is to connect the sheet metal parts. Figure 6 As shown, the traditional bending machine processing method is to use a bending die to bend the sheet metal material 170 degrees. Figure 7 As shown, the mold is then replaced to flatten the sheet metal material. Traditional bending machines need to complete the 180° bending of the sheet metal material through these two steps. The mold needs to be replaced between the two steps, which results in low production efficiency. Utility Model Content

[0003] In order to solve the defects of the existing technology that traditional bending machines need to complete the 180° bending of sheet metal materials in two steps, and the mold needs to be replaced between the two steps, resulting in low production efficiency, the utility model provides a new 180° bending mechanism for sheet metal materials.

[0004] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0005] The utility model discloses a novel 180° bending mechanism for sheet metal materials, comprising a frame, and a placing table for horizontally placing the sheet metal materials is provided on the frame, and a bending mechanism for bending the sheet metal materials is provided at the front end of the placing table, the bending mechanism comprises an upper knife arranged on the frame, a lower knife cooperating with the upper knife is provided on the frame via a telescopic mechanism, the lower knife is inclined, and a clamp for the sheet metal materials to pass through is formed between the upper knife and the lower knife, a guide plate for guiding the sheet metal materials is fixed on the upper knife, the frame is provided with a positioning plate for abutting and positioning the end of the sheet metal materials, and a bending assembly for bending the sheet metal materials is provided on the frame, and a linkage mechanism is connected between the bending assembly and the positioning plate, and the linkage mechanism is used to remove the positioning plate when the bending assembly is bent.

[0006] As an optimal technical solution of the present utility model, the bending assembly includes bending gears arranged on both sides of the frame, each of the bending gears is provided with a retaining seat, a bending knife is provided between the two retaining seats, and the frame is provided with a driving mechanism for driving the bending gears to rotate.

[0007] As a preferred technical solution of the present invention, the driving mechanism includes a spur rack arranged on a frame and meshing with a bent gear, and a driving cylinder for rotating the spur rack is provided on the frame.

[0008] As a preferred technical solution of the present utility model, a positioning bearing for positioning the straight rack is further provided on the frame.

[0009] As a preferred technical solution of the present utility model, the linkage mechanism includes a turning shaft arranged on the frame, the positioning plate is arranged at the end of the turning shaft, a connecting rod is arranged between the straight racks, and both ends of the connecting rod are rotatably hinged to the turning shaft and the straight rack.

[0010] As a preferred technical solution of the present utility model, a telescopic cylinder for driving the lower knife to move is provided on the frame.

[0011] The beneficial effects of the present utility model are as follows:

[0012] Before the work of this new type of sheet metal material 180° bending mechanism starts, the lower knife is in the lower position and does not contact the upper knife. The positioning plate is in the upper position, and the bending assembly does not work. The sheet metal material is inserted along the feeding direction under the guidance of the guiding plate and contacts the positioning plate. The lower knife moves obliquely upward along its own direction under the driving action of the cylinder, cooperates with the upper knife to clamp the sheet metal material, and the driving cylinder starts to contract, thereby driving the driving straight rack to move obliquely downward along its own direction. The driving straight rack drives the bending gear to rotate counterclockwise. Since the bending gear is relatively fixed to the bending knife, the bending knife is driven to rotate counterclockwise along the axis of the bending gear. The rotational movement of the bending knife drives the sheet metal material to start bending. At the same time, when the driving straight rack moves obliquely downward, the turning shaft is driven to rotate clockwise through the connecting rod to make way for the rotational movement of the bending knife and avoid collision between the bending knife and the positioning plate. After the sheet metal material is bent 180°, the driving cylinder starts to extend, driving the driving straight rack to move obliquely upward, and the driving straight rack drives the bending gear to rotate clockwise, thereby driving the bending knife to rotate clockwise to make the bending knife return to its original position. At the same time, the turning shaft is driven to rotate counterclockwise through the connecting rod to make the positioning plate return to its original position. After the positioning plate returns to its original position, the lower knife moves obliquely downward and disengages from the upper knife to release the sheet metal material. At this time, the sheet metal material bent 180° can be taken out from the gap between the upper knife and the lower knife. The entire bending process is completed, preparing for the bending of the next workpiece. Description of the Drawings

[0013] The drawings are used to provide a further understanding of the present utility model, and constitute a part of the specification. Together with the embodiments of the present utility model, they are used to explain the present utility model and do not constitute a limitation to the present utility model. In the drawings:

[0014] Figure 1 is a schematic structural diagram of a 180° bending mechanism for a new type of sheet metal material of the present utility model;

[0015] Figure 2 is a schematic diagram of the bending mechanism of a 180° bending mechanism for a new type of sheet metal material of the present utility model;

[0016] Figure 3 It is a schematic diagram of the bending process movement of a 180° bending mechanism for a new type of sheet metal material of the present utility model;

[0017] Figure 4 It is a structural schematic diagram of the bending angle of a 180° bending mechanism for a new type of sheet metal material of the present utility model;

[0018] Figure 5 It is a schematic diagram of the structural member that can be formed by bending a 180° bending mechanism for a new type of sheet metal material of the present utility model;

[0019] Figure 6 It is a bending schematic diagram of a traditional bending machine of the present utility model;

[0020] Figure 7 It is a schematic diagram of flattening after bending of the present utility model.

[0021] In the figure: 1. Frame; 2. Placing table; 3. Bending mechanism; 4. Upper knife; 5. Lower knife; 6. Positioning plate; 7. Bending assembly; 8. Linkage mechanism; 9. Guide plate; 10. Bending gear; 11. Fixing seat; 12. Bending knife; 13. Straight rack; 14. Driving cylinder; 15. Positioning bearing; 16. Rotating shaft; 17. Connecting rod; 18. Telescopic cylinder. Specific embodiments

[0022] The following is a description of the preferred embodiments of the present utility model with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are only for the purpose of illustrating and explaining the present utility model, and are not intended to limit the present utility model.

[0023] Embodiment: As Figure 1 、 Figure 2 、 Figure 3As shown in the figure, a novel sheet metal material 180° bending mechanism of the utility model includes a frame 1, and a placing table 2 for horizontally placing the sheet metal material is arranged on the frame 1. A bending mechanism 3 for bending the sheet metal material is arranged at the front end of the placing table 2 on the frame 1. The bending mechanism 3 includes an upper knife 4 arranged on the frame 1. A lower knife 5 cooperating with the upper knife 4 is arranged on the frame 1 through a telescopic mechanism. The lower knife is inclined, and a clamping opening for the sheet metal material to pass through is formed between the upper knife 4 and the lower knife 5. A guide plate 9 for guiding the sheet metal material is fixed on the upper knife 4. A positioning plate 6 for resisting and positioning the end of the sheet metal material is arranged on the frame 1. A bending assembly 7 for bending the sheet metal material is arranged on the frame 1. The bending assembly 7 is connected to the positioning plate 6 through a linkage mechanism 8. The linkage mechanism 8 is used to remove the positioning plate 6 when the bending assembly 7 bends. It can perform 180° bending without going through multiple steps of bending. It can realize one-time clamping and bending forming of the sheet metal material with a 180° bend without replacing the bending die, greatly improving the bending efficiency. For example, Figure 4 and Figure 5 as shown in the figure, various shapes of bends can be achieved through different combinations of processing flows.

[0024] Among them, the bending assembly 7 includes bending gears 10 arranged on both sides of the frame 1. A retaining seat 11 is arranged on each bending gear 10. A bending knife 12 is arranged between the two retaining seats 11. A driving mechanism for driving the bending gear 10 to rotate is arranged on the frame 1. In this way, the driving straight rack 13 drives the bending gear 10 to rotate counterclockwise. Since the bending gear 10 is relatively fixed to the bending knife 12, the bending knife 12 is driven to rotate counterclockwise along the axis of the bending gear 10. The rotational movement of the bending knife 12 drives the sheet metal material to start bending, which has the characteristics of easy operation.

[0025] Among them, the driving mechanism includes a straight rack 13 arranged on the frame 1 and meshing with the bending gear 10. A driving cylinder 14 for rotating the straight rack 13 is arranged on the frame 1. By the telescopic movement of the driving cylinder, the straight rack is driven to move, which has the characteristics of simple structure and easy control.

[0026] Among them, a positioning bearing 15 for positioning the straight rack 13 is further arranged on the frame 1, which facilitates the linear movement of the straight rack.

[0027] Among them, the linkage mechanism 8 includes a turning shaft 16 arranged on the frame 1. The positioning plate 6 is arranged at the end of the turning shaft 16. A connecting rod 17 is provided between the outer end of the straight rack 13 and the turning shaft 16. Both ends of the connecting rod 17 are rotatably hinged to the turning shaft 16 and the straight rack 13. Driving the straight rack 13 to move obliquely downward will drive the turning shaft 16 to rotate clockwise through the connecting rod 17, making way for the rotational movement of the folding cutter 12 and avoiding collision between the folding cutter 12 and the positioning plate 6. The connecting rod is a spring rod.

[0028] Among them, a telescopic cylinder 18 for driving the lower knife 5 to move is arranged on the frame 1, which has the characteristic of being easy to control.

[0029] During operation, before the start of work of this new type of sheet metal material 180° bending mechanism, the lower knife 5 is in the lower position and does not contact the upper knife 4. The positioning plate 6 is in the upper position and the bending assembly 7 does not work. The sheet metal material is inserted along the feeding direction under the guidance of the guiding plate 9 and contacts the positioning plate 6. The lower knife 5 moves obliquely upward along its own direction under the driving action of the cylinder, cooperates with the upper knife 4 to clamp the sheet metal material, and the driving cylinder 14 starts to contract, thereby driving the driving straight rack 13 to move obliquely downward along its own direction. The driving straight rack 13 drives the bending gear 10 to rotate counterclockwise. Since the bending gear 10 and the folding cutter 12 are relatively fixed, the folding cutter 12 is driven to rotate counterclockwise along the axis of the bending gear 10. The rotational movement of the folding cutter 12 drives the sheet metal material to start bending. At the same time, when the driving straight rack 13 moves obliquely downward, the turning shaft 16 is driven to rotate clockwise through the connecting rod 17, making way for the rotational movement of the folding cutter 12 and avoiding collision between the folding cutter 12 and the positioning plate 6. After the sheet metal material is bent by 180°, the driving cylinder 14 starts to extend, driving the driving straight rack 13 to move obliquely upward, and the driving straight rack 13 drives to rotate clockwise, thereby driving the folding cutter 12 to rotate clockwise to make the folding cutter 12 return to its original position. At the same time, the turning shaft 16 is driven to rotate counterclockwise through the connecting rod 17 to make the positioning plate 6 return to its original position. After the positioning plate 6 returns to its original position, the lower knife 5 moves obliquely downward and disengages from the upper knife 4 to release the sheet metal material. At this time, the sheet metal material bent by 180° can be taken out from the gap between the upper knife 4 and the lower knife 5. The entire bending process is completed, preparing for bending the next workpiece.

[0030] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A novel sheet metal material 180° bending mechanism, characterized in that, The invention comprises a frame (1), wherein the frame (1) is provided with a placement table (2) for horizontally placing sheet metal materials, and the frame (1) is provided with a bending mechanism (3) for bending the sheet metal materials at the front end of the placement table (2), wherein the bending mechanism (3) comprises an upper knife (4) arranged on the frame (1), and a lower knife (5) cooperating with the upper knife (4) is provided on the frame (1) via a telescopic mechanism, wherein the lower knife is arranged in an inclined manner, and a space is formed between the upper knife (4) and the lower knife (5). A clamp for sheet metal material to pass through, a guide plate (9) for guiding the sheet metal material is fixed on the upper knife (4), a positioning plate (6) for interfering and positioning the end of the sheet metal material is provided on the frame (1), and a bending assembly (7) for bending the sheet metal material is provided on the frame (1), and a linkage mechanism (8) is connected between the bending assembly (7) and the positioning plate (6), and the linkage mechanism (8) is used to remove the positioning plate (6) when the bending assembly (7) is bent.

2. The 180° bending mechanism of a new sheet metal material according to claim 1, characterized in that, The bending assembly (7) comprises bending gears (10) arranged on both sides of a frame (1), each of the bending gears (10) is provided with a retaining seat (11), a bending knife (12) is provided between the two retaining seats (11), and a driving mechanism for driving the bending gears (10) to rotate is provided on the frame (1).

3. A 180° bending mechanism for a new type of sheet metal material according to claim 2, characterized in that, The driving mechanism comprises a spur rack (13) arranged on a machine frame (1) and meshing with a bending gear (10), and a driving cylinder (14) for rotating the spur rack (13) is provided on the machine frame (1).

4. A 180° bending mechanism for a new sheet metal material according to claim 3, characterized in that, The frame (1) is also provided with a positioning bearing (15) for positioning the spur rack (13).

5. A 180° bending mechanism for a new type of sheet metal material according to claim 4, characterized in that, The linkage mechanism (8) includes a tilting shaft (16) arranged on the frame (1), the positioning plate (6) is arranged at the end of the tilting shaft (16), a connecting rod (17) is provided between the outer end of the spur rack (13) and the tilting shaft (16), and the ends of the connecting rod (17) are rotatably hinged with the tilting shaft (16) and the spur rack (13).

6. A novel sheet metal material 180° bending mechanism according to claim 1, characterized in that, The frame (1) is provided with a telescopic cylinder (18) for driving the lower knife (5) to move.

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