Hydraulic numerical control bending machine for bending plates

Abstract

The hydraulic numerical control bending machine comprises a bending machine body, a pressing groove is fixedly formed in a working table of the bending machine body, an extrusion plate is arranged at the top of the rear side of a folding knife of the bending machine body, a top plate is arranged in the pressing groove, a connecting base is fixedly connected to the top of the pressing groove, and the top of the connecting base is provided with a pressing plate. A plate folding mold is arranged outside the connecting seat; the connecting frame is arranged on the rear side of the middle of the bending machine body, a fastening rod is arranged in the adjusting seat, a supporting spring is arranged at the joint of the adjusting seat and the first supporting rod, a positioning plate is connected to the front end of the second supporting rod, a guide rod is connected to the front end of the adjusting seat, and the guide rod is arranged on the outer side of the first supporting rod. According to the hydraulic numerical control bending machine for bending the plate, the plate can be prevented from being scratched, so that the bending quality of the plate is guaranteed, the positioning plate can be driven to move backwards, and friction between the plate and the positioning plate is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of hydraulic numerical control bending machines, in particular to a hydraulic numerical control bending machine for sheet metal bending. Background Technique

[0002] A hydraulic numerical control bending machine is a machine that can bend thin plates. Its structure mainly includes a bracket, a workbench, a hydraulic drive, a folding knife, a clamping plate, etc. During the operation of the hydraulic numerical control bending machine, the sheet metal is placed on the folding die on the workbench, and the folding knife is pressed down by the hydraulic drive to bend the sheet metal.

[0003] In the existing hydraulic numerical control bending machine, when bending the sheet metal, the sheet metal slides on the folding die, resulting in scratches on the folding die. And after positioning the sheet metal, the positioning plate cannot move backward, resulting in friction between the sheet metal and the positioning plate when the sheet metal is bent. Therefore, we propose a hydraulic numerical control bending machine for sheet metal bending to solve the problems mentioned above. Content of the Utility Model

[0004] The purpose of the utility model is to provide a hydraulic numerical control bending machine for sheet metal bending to solve the problems in the above background technique that in the current hydraulic numerical control bending machine, when bending the sheet metal, the sheet metal slides on the folding die, resulting in scratches on the folding die, and after positioning the sheet metal, the positioning plate cannot move backward, resulting in friction between the sheet metal and the positioning plate when the sheet metal is bent.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A hydraulic numerical control bending machine for sheet metal bending, including:

[0006] A bending machine body, on the workbench of the bending machine body, a pressure groove is fixedly installed, and an extrusion plate is arranged at the top rear side of the folding knife of the bending machine body. Inside the pressure groove, a top plate is arranged, and a return spring is connected below the top plate. The top of the pressure groove is fixedly connected with a connecting seat, and a folding die is arranged outside the connecting seat;

[0007] A connecting frame, which is arranged at the middle rear side of the bending machine body, and an adjusting seat is arranged outside the connecting frame. Inside the adjusting seat, a fastening rod is arranged, and a first support rod is connected to the front end of the adjusting seat. A support spring is arranged at the connection between the adjusting seat and the first support rod, and a second support rod is connected to the front end of the first support rod. A positioning plate is connected to the front end of the second support rod, and a support spring is arranged at the connection between the positioning plate and the second support rod. A guide rod is connected to the front end of the adjusting seat, and the guide rod is arranged outside the first support rod.

[0008] Preferably, the top plate and the pressure groove form a lifting structure, and return springs are arranged at equal intervals below the top plate.

[0009] Preferably, the connecting seats are symmetrically arranged on the top of the pressing grooves on the left and right, and the folding plate die is rotatably connected to the connecting seats.

[0010] Preferably, the adjusting seat and the connecting frame form a sliding structure, the fastening rod is threadedly connected to the adjusting seat, and the adjusting seat is fixedly connected to the connecting frame through the fastening rod.

[0011] Preferably, the first support rod is rotatably connected to the adjusting seat, and its rotation range is 0° - 90°.

[0012] Preferably, the second support rod is rotatably connected to the first support rod, and the second support rod is movably connected to the extrusion plate.

[0013] Preferably, the positioning plate and the guide rod form a sliding structure, the second support rod is rotatably connected to the positioning plate, and the rotation range of the second support rod and the positioning plate is 0° - 90°.

[0014] Compared with the prior art, the beneficial effects of the present utility model are as follows: The hydraulic numerical control bending machine for sheet metal bending can avoid scratching the sheet metal, thereby ensuring the bending quality of the sheet metal, and can drive the positioning plate to move backward to avoid friction between the sheet metal and the positioning plate;

[0015] 1. The connecting seats and the folding plate die are provided. The folding plate die is rotatably connected to the connecting seats, so that when the sheet metal is bent, the folding plate die squeezes the sheet metal through the rotation of the connecting seats, avoiding scratching the sheet metal, thereby ensuring the bending quality of the sheet metal;

[0016] 2. The first support rod and the second support rod are provided. The first support rod and the second support rod are respectively rotatably connected to the adjusting seat and the positioning plate through the support springs, and the first support rod is rotatably connected to the second support rod, so that when the first support rod and the second support rod are in a straight line, they can position the sheet metal, and when the first support rod and the second support rod are bent, they can drive the positioning plate to separate from the sheet metal;

[0017] 3. The adjusting seat and the guide rod are provided. The adjusting seat is connected to the connecting frame through the fastening rod, which is convenient to adjust the position of the adjusting seat through the fastening rod, thereby adjusting the position of the positioning plate. The positioning plate is slidably connected to the guide rod, which is convenient for the extrusion plate to move downward to squeeze the second support rod and drive the positioning plate to retreat, avoiding friction between the sheet metal and the positioning plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is the front view structure schematic diagram of the whole of the present utility model;

[0019] Figure 2 is the rear view structure schematic diagram of the whole of the present utility model;

[0020] Figure 3 is the side view sectional structure schematic diagram of the present utility model.

[0021] In the figure: 1. Bending machine body; 2. Grooving; 3. Top plate; 4. Return spring; 5. Connecting seat; 6. Folding plate die; 7. Connecting frame; 8. Adjusting seat; 9. Tightening rod; 10. First support rod; 11. Second support rod; 12. Support spring; 13. Positioning plate; 14. Guide rod; 15. Extrusion plate. Detailed implementation manner

[0022] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0023] Please refer to Figures 1-3 , the present invention provides a technical solution: a hydraulic numerical control bending machine for sheet metal bending, including: bending machine body 1, grooving 2, top plate 3, return spring 4, connecting seat 5, folding plate die 6, connecting frame 7, adjusting seat 8, tightening rod 9, first support rod 10, second support rod 11, support spring 12, positioning plate 13, guide rod 14 and extrusion plate 15;

[0024] Bending machine body 1, a grooving 2 is fixedly installed on the working table of the bending machine body 1, and an extrusion plate 15 is arranged at the top of the back side of the folding knife of the bending machine body 1. A top plate 3 is arranged inside the grooving 2, and a return spring 4 is connected below the top plate 3. The top of the grooving 2 is fixedly connected with a connecting seat 5, and a folding plate die 6 is arranged outside the connecting seat 5;

[0025] Connecting frame 7, the connecting frame 7 is arranged at the rear side of the middle part of the bending machine body 1, and an adjusting seat 8 is arranged outside the connecting frame 7. A tightening rod 9 is arranged inside the adjusting seat 8, and a first support rod 10 is connected to the front end of the adjusting seat 8. A support spring 12 is arranged at the connection part of the adjusting seat 8 and the first support rod 10, and a second support rod 11 is connected to the front end of the first support rod 10. A positioning plate 13 is connected to the front end of the second support rod 11, and a support spring 12 is arranged at the connection part of the positioning plate 13 and the second support rod 11. A guide rod 14 is connected to the front end of the adjusting seat 8, and the guide rod 14 is arranged outside the first support rod 10.

[0026] As Figure 1 and Figure 3 In, the top plate 3 and the grooving 2 form a lifting structure, and return springs 4 are arranged at equal intervals below the top plate 3, which is convenient for resetting the folding plate die 6. The connecting seats 5 are symmetrically arranged on the left and right sides of the top of the grooving 2, and the folding plate die 6 is rotatably connected with the connecting seats 5, which is convenient for the folding plate die 6 to rotate and drive the sheet metal to move.

[0027] As Figure 2 andFigure 3 The middle adjusting seat 8 and the connecting frame 7 form a sliding structure, and the fastening rod 9 is threadedly connected to the adjusting seat 8, and the adjusting seat 8 is fixedly connected to the connecting frame 7 through the fastening rod 9, which facilitates the adjustment of the position of the adjusting seat 8. The first support rod 10 is rotatably connected to the adjusting seat 8, and its rotation range is 0° - 90°, which facilitates the rotation of the first support rod 10. The second support rod 11 is rotatably connected to the first support rod 10, and the second support rod 11 is movably connected to the pressing plate 15, which facilitates driving the second support rod 11 to rotate. The positioning plate 13 and the guide rod 14 form a sliding structure, and the second support rod 11 is rotatably connected to the positioning plate 13, and the rotation range of the second support rod 11 and the positioning plate 13 is 0° - 90°, which facilitates the sliding of the positioning plate 13.

[0028] Working principle: When using this hydraulic numerical control bending machine for sheet metal bending, as Figure 1 shown, place the sheet metal on the folding die 6, and make the rear side of the sheet metal fit with the positioning plate 13. Drive the folding knife to press down through the hydraulic drive of the bending machine body 1, so that the pressing plate 15 moves downward. During the downward movement of the pressing plate 15, the second support rod 11 is pressed, so that the second support rod 11 rotates on the positioning plate 13. And because the positioning plate 13 is slidably connected to the guide rod 14, and the first support rod 10 is rotatably connected to the adjusting seat 8, the downward movement of the pressing plate 15 drives the positioning plate 13 to slide backward and separate from the sheet metal;

[0029] During the continuous downward movement of the folding knife, it contacts the sheet metal and presses the sheet metal. As Figure 3 shown, the folding die 6 rotates on the connecting seat 5 at the top of the pressing groove 2 and drives the sheet metal to bend, thus avoiding scratching of the sheet metal. After the sheet metal bending is completed, the folding knife resets, and the reset spring 4 pushes the top plate 3 up to drive the folding die 6 to reset. At the same time, the first support rod 10 and the second support rod 11 reset under the action of the support spring 12, so that the positioning plate 13 resets. This is the entire working process of this hydraulic numerical control bending machine for sheet metal bending. The content not described in detail in this specification belongs to the prior art well-known to those skilled in the art.

[0030] The standard parts used in the present invention can all be purchased from the market. The special-shaped parts can be customized according to the description in the specification and the drawings. The specific connection methods of each part all adopt conventional means such as bolts, rivets, and welding that are mature in the prior art. The machines, parts, and equipment all adopt conventional models in the prior art, and the circuit connection adopts the conventional connection method in the prior art, which will not be elaborated here.

[0031] Although the present utility model 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 utility model shall be included within the protection scope of the present utility model.

Claims

1. A hydraulic numerical control bending machine for sheet metal bending, characterized in that, Including: A bending machine body (1), on the working table of the bending machine body (1), a grooving (2) is fixedly installed, and at the top rear side of the folding knife of the bending machine body (1), an extrusion plate (15) is provided. Inside the grooving (2), a top plate (3) is provided, and a return spring (4) is connected below the top plate (3). At the top of the grooving (2), a connecting seat (5) is fixedly connected, and outside the connecting seat (5), a folding plate die (6) is provided; A connecting frame (7), the connecting frame (7) is arranged at the rear side of the middle part of the bending machine body (1), and outside the connecting frame (7), an adjusting seat (8) is provided. Inside the adjusting seat (8), a fastening rod (9) is provided, and at the front end of the adjusting seat (8), a first support rod (10) is connected. At the connection part between the adjusting seat (8) and the first support rod (10), a support spring (12) is provided, and at the front end of the first support rod (10), a second support rod (11) is connected. At the front end of the second support rod (11), a positioning plate (13) is connected, and at the connection part between the positioning plate (13) and the second support rod (11), a support spring (12) is provided. At the front end of the adjusting seat (8), a guide rod (14) is connected, and the guide rod (14) is arranged outside the first support rod (10).

2. The hydraulic numerical control bending machine for sheet metal bending according to claim 1, wherein: The top plate (3) and the grooving (2) form a lifting structure, and return springs (4) are arranged at equal intervals below the top plate (3).

3. A hydraulic numerical control bending machine for sheet metal bending according to claim 1, characterized in that: The connecting seats (5) are symmetrically arranged on the left and right at the top of the grooving (2), and the folding plate die (6) is rotatably connected to the connecting seats (5).

4. A hydraulic numerical control bending machine for sheet metal bending according to claim 1, characterized in that: The adjusting seat (8) and the connecting frame (7) form a sliding structure, and the fastening rod (9) is threadedly connected to the adjusting seat (8), and the adjusting seat (8) is fixedly connected to the connecting frame (7) through the fastening rod (9).

5. A hydraulic numerical control bending machine for sheet metal bending according to claim 1, characterized in that: The first support rod (10) is rotatably connected to the adjusting seat (8), and its rotation range is 0° - 90°.

6. A hydraulic numerical control bending machine for sheet metal bending according to claim 1, characterized in that: The second support rod (11) is rotatably connected to the first support rod (10), and the second support rod (11) is movably connected to the extrusion plate (15).

7. A hydraulic numerical control bending machine for sheet metal bending according to claim 1, characterized in that: The positioning plate (13) and the guide rod (14) form a sliding structure, and the second support rod (11) is rotatably connected to the positioning plate (13), and the rotation range of the second support rod (11) and the positioning plate (13) is 0° - 90°.

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