Sheet metal part bending machine

Abstract

The utility model discloses a sheet metal part bending machine which comprises a machining table, a clamping plate and a handle screw rod, an oil cylinder is installed on the machining table, a piston rod of the oil cylinder is connected with a bending base, the machining table is connected with a bending head corresponding to the bending base, a roller is installed at the end of the bending base, and the handle screw rod is connected with the clamping plate. The two clamping plates are in sliding connection with the machining table, the limiting plates are rotationally installed on the side faces of the clamping plates, the limiting plates and the clamping plates are in positioning connection through tension springs, the handle screw rods are in threaded connection with the side faces of the clamping plates, and the end portions of the handle screw rods are fixedly connected with jacking heads; when the oil cylinder pushes the bending base to bend the sheet metal part, the two rollers on the bending base replace the bending base to make contact with the sheet metal part, the rollers roll on the surface of the sheet metal part so that the sheet metal part can be prevented from being scratched, and the problem that the sheet metal part is damaged due to bending can be solved.

Description

Technical Field

[0001] This utility model relates to the field of bending machine technology, specifically a bending machine for metal sheet metal parts. Background Technology

[0002] The processing flow of sheet metal parts includes cutting, stamping, bending, drilling, and welding. Among these, bending of sheet metal parts is usually carried out using a bending machine.

[0003] Among the relevant technologies, a search revealed that the solution for the sheet metal bending device for electrical control cabinets (announcement number CN221473102U) uses limiting mechanisms on both the left and right sides of the top of the work platform to clamp and position the sheet metal before bending. At the same time, the limiting mechanisms on both sides can be controlled and adjusted independently, which makes it easier to determine the length of the sheet metal from the bending point on both sides after bending and improves the bending accuracy.

[0004] However, in the above solution, when the bending seat bends directly along the sheet metal part, the bending seat will rub against the surface of the sheet metal part, which can easily cause wear on the surface of the sheet metal part and affect the quality of the sheet metal part. To prevent the sheet metal part from tipping over by controlling the distance between the bending seat and the bending head, the distance between the bending seat and the bending head is slightly larger than the sheet metal part. When manually placing the sheet metal part, more precise placement is required, which affects the placement speed of the sheet metal part. Utility Model Content

[0005] The purpose of this utility model is to provide a metal sheet bending machine to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a metal sheet metal bending machine, including a processing table, an oil cylinder mounted on the processing table, a bending seat connected to the piston rod of the oil cylinder, a bending head corresponding to the bending seat connected to the processing table, and a roller mounted at the end of the bending seat. The roller will not rub against the surface of the sheet metal part, ensuring that no scratches are left on the surface of the sheet metal part.

[0007] Clamping plates, two clamping plates are provided and slidably connected to the processing table, and a limit plate is rotatably installed on the side of the clamping plate. The limit plate and the clamping plate are positioned and connected by a tension spring.

[0008] The handle screw is screwed to the side of the clamping plate. A tightening head is fixedly connected to the end of the handle screw. The limiting plate cooperates with the tightening head to clamp the sheet metal parts. The limiting plate can rotate, which increases the operating space when placing sheet metal parts and helps to improve the placement efficiency of sheet metal parts.

[0009] Furthermore, a T-bolt is screwed to the side of the clamping plate, and the lower end of the T-bolt is connected to a limited slide. Tightening the T-bolt can quickly adjust the position of the clamping plate, making it convenient to bend sheet metal parts of different lengths or widths.

[0010] Furthermore, the upper end of the limiting plate is connected to a guide strip, and the end of the clamping head is equipped with a conical column. When placing sheet metal parts, the guide strip and conical column can reduce the obstruction of sheet metal parts, which is conducive to the workers placing sheet metal parts quickly.

[0011] Furthermore, the side of the clamping plate has a top post, and the top post and the surface of the clamping plate are provided with a sleeve post. The rings at both ends of the tension spring are connected to the sleeve post, so that the tension spring can be easily replaced when the tension of the tension spring decreases.

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

[0013] (1) When the hydraulic cylinder pushes the bending seat to bend the sheet metal parts, the two rollers on the bending seat replace the bending seat and contact the sheet metal parts. The rollers roll on the surface of the sheet metal parts to avoid scratching the sheet metal parts, which helps to improve the problem of sheet metal parts being damaged during bending.

[0014] (2) The limit plate can rotate, and when the sheet metal parts are placed between the limit plate and the clamping head, it can provide flexible operating space. The guide strip and the cone column are conducive to the sheet metal parts sliding down. The operation accuracy of placing sheet metal parts is low, which can improve the placement speed of sheet metal parts.

[0015] (3) The bending head is connected to the column by a clip, and the bending seat is connected by a clip and a groove seat. The bending head and bending seat can be quickly replaced to achieve different bending shapes of sheet metal parts. Attached Figure Description

[0016] Figure 1 This is a top view of the present invention;

[0017] Figure 2 This is a schematic diagram of the bent head and bent seat of this utility model after disassembly;

[0018] Figure 3 This is a schematic diagram of the connection between the top column and the tension spring in this utility model;

[0019] Figure 4 This is a schematic diagram of the sheet metal part of this utility model placed between the guide bar and the cone column.

[0020] In the diagram: 1. Machining table; 2. Hydraulic cylinder; 3. Slide rail; 4. Clamping plate; 5. Limited slide seat; 6. Handle screw; 7. Bending seat; 8. Roller; 9. Clamping strip; 10. Column; 11. Bending head; 12. Limiting plate; 13. Tightening head; 14. Groove seat; 15. Top column; 16. Connecting ear; 17. Sleeve column; 18. Tension spring; 19. Guide strip; 20. Conical column; 21. Sheet metal part; 22. T-bolt; 23. Clamping strip. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Example:

[0023] Please see Figure 1-4 This utility model provides a technical solution: a metal sheet metal bending machine, including a processing table 1, a hydraulic cylinder 2 installed on the processing table 1, a bending seat 7 connected to the piston rod of the hydraulic cylinder 2, a bending head 11 corresponding to the bending seat 7 connected to the processing table 1, a roller 8 installed at the end of the bending seat 7, the roller 8 bending the sheet metal part 21 in a rolling manner, avoiding the bending seat 7 directly scraping the sheet metal part 21, and preventing scratches from being left on the sheet metal part 21;

[0024] Clamping plate 4, two clamping plates 4 are provided and slidably connected to the processing table 1. A limiting plate 12 is rotatably installed on the side of the clamping plate 4. The limiting plate 12 and the clamping plate 4 are positioned and connected by a tension spring 18. The tension spring 18 restricts the free rotation of the limiting plate 12. The rotation of the limiting plate 12 can leave space for placing sheet metal. When bending sheet metal part 21, the limiting plate 12 can avoid blocking the sheet metal part 21.

[0025] The handle screw 6 is screwed to the side of the clamping plate 4. The end of the handle screw 6 is fixedly connected to the tightening head 13. By turning the handle screw 6, the distance between the tightening head 13 and the limiting plate 12 can be changed, and sheet metal parts 21 of different thicknesses can be used to meet different processing requirements.

[0026] In this embodiment, as Figure 1 As shown, a slide rail 3 is installed on the surface of the processing table 1, and the clamping plate 4 is slidably connected to the surface of the slide rail 3, which improves the moving accuracy and stability of the clamping plate 4 and has a good limiting effect on the sheet metal part 21.

[0027] In this embodiment, as Figure 2 As shown, a T-bolt 22 is screwed to the side of the clamping plate 4. The lower end of the T-bolt 22 is connected to the limited slide 5. Tightening the T-bolt 22 causes the limited slide 5 to move upward and separate from the processing table 1. At this time, the position of the clamping plate 4 can be changed by using the T-bolt 22 to adjust the distance between the two clamping plates 4, so as to adapt to sheet metal parts 21 of different sizes.

[0028] In this embodiment, as Figure 2As shown, the piston rod of the hydraulic cylinder 2 is connected to a groove seat 14, and a snap-fit ​​strip 23 is fixedly connected to the surface of the bending seat 7. When the bending seat 7 is pulled upward, the snap-fit ​​strip 23 separates from the groove seat 14, allowing for quick replacement of bending seats 7 of different shapes. The snap-fit ​​strip 23 slides into the groove seat 14. Two columns 10 are fixedly connected to the surface of the processing table 1. The bending head 11 is snapped to the two columns 10 by a snap-fit ​​strip 9. Pulling the bending head 11 upward causes the snap-fit ​​strip 9 to separate from the columns 10, allowing for replacement of the bending head 11. This meets the need for quick replacement and is flexible and convenient to use.

[0029] In this embodiment, as Figure 4 As shown, the upper end of the limiting plate 12 is connected to a guide strip 19, and the end of the clamping head 13 is equipped with a conical column 20. When the sheet metal part 21 is placed between the limiting plate 12 and the conical column 20 from top to bottom, the conical column 20 and the guide strip 19 reduce the probability of the sheet metal part 21 being stuck. At the same time, the clamping plate 4 and the top column 15 are provided with inclined surfaces to prevent the clamping plate 4 and the top column 15 from getting stuck on the left and right ends of the sheet metal part 21.

[0030] In this embodiment, as Figure 3 As shown, the side of the clamping plate 4 is provided with a connecting ear 16, and the limiting plate 12 is connected to the connecting ear 16 by a pin, so that the limiting plate 12 can rotate flexibly.

[0031] In this embodiment, as Figure 3 As shown, the side of the clamping plate 4 has a top post 15, and the top post 15 and the surface of the clamping plate 4 are provided with a sleeve post 17. The rings at both ends of the tension spring 18 are connected to the sleeve post 17. The tension spring 18 can be quickly replaced by removing it from the sleeve post 17, ensuring that the tension spring 18 stably tightens the limiting plate 12.

[0032] Specifically, when in use, the sheet metal part 21 is placed between the limiting plate 12 and the clamping head 13. The guide strip 19, the cone column 20, the clamping plate 4 and the inclined surface at the top of the top column 15 can guide the sheet metal part 21 to fall. The sheet metal part 21 does not need to be placed very precisely by hand, the placement difficulty is low, and it is also conducive to increasing the placement speed of the sheet metal part 21.

[0033] When the hydraulic cylinder 2 is activated, it pushes the bending seat 7 to move through the groove seat 14 and the retaining strip 9. The roller 8 on the bending seat 7 contacts the sheet metal part 21. The sheet metal part 21 deforms along the bending head 11 as the bending seat 7 moves. The limiting plate 12 is pushed by the sheet metal part 21 and rotates, which does not obstruct the bending of the sheet metal part 21. The limiting plate 12 is pulled back to its original position by the tension spring 18, which facilitates the positioning of the sheet metal part 21 next time. The roller 8 rolls along the sheet metal part 21 and does not leave friction marks on the sheet metal part 21, resulting in better quality of the sheet metal part 21. After the bending is completed, the hydraulic cylinder 2 drives the bending seat 7 to reset and remove the bent sheet metal part 21.

[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, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A metal sheet metal bending machine, characterized in that, include: A processing table (1) is provided with a hydraulic cylinder (2) installed on the processing table (1). The piston rod of the hydraulic cylinder (2) is connected to a bending seat (7). A bending head (11) corresponding to the bending seat (7) is connected to the processing table (1). A roller (8) is installed at the end of the bending seat (7). Clamping plate (4), two clamping plates (4) are provided and are slidably connected to the processing table (1). A limiting plate (12) is rotatably installed on the side of the clamping plate (4). The limiting plate (12) and the clamping plate (4) are positioned and connected by a tension spring (18). Handle screw (6), the handle screw (6) is screwed to the side of the clamp plate (4), and a tightening head (13) is fixedly connected to the end of the handle screw (6).

2. A metal sheet metal bending machine according to claim 1, characterized in that: The processing table (1) is equipped with a slide rail (3), and the clamping plate (4) is slidably connected to the surface of the slide rail (3).

3. A metal sheet metal bending machine according to claim 1, characterized in that: The side of the clamp (4) is screwed with a T-bolt (22), and the lower end of the T-bolt (22) is connected to a limited slide (5).

4. A metal sheet metal bending machine according to claim 1, characterized in that: The piston rod of the cylinder (2) is connected to a groove seat (14), and a snap-fit ​​strip (23) is fixedly connected to the surface of the bending seat (7). The snap-fit ​​strip (23) slides into the groove seat (14).

5. A metal sheet metal bending machine according to claim 1, characterized in that: Two columns (10) are fixedly connected to the surface of the processing table (1), and the bending head (11) is clamped to the two columns (10) by a clip (9).

6. A metal sheet metal bending machine according to claim 1, characterized in that: The upper end of the limiting plate (12) is connected to a guide strip (19), and the end of the tightening head (13) is equipped with a conical column (20).

7. A metal sheet metal bending machine according to claim 1, characterized in that: The clamp (4) has a connecting ear (16) on its side, and the limiting plate (12) is connected to the connecting ear (16) by a pin.

8. A metal sheet metal bending machine according to claim 1, characterized in that: The side of the clamping plate (4) has a top post (15), and the top post (15) and the surface of the clamping plate (4) are provided with a sleeve post (17). The rings at both ends of the tension spring (18) are connected to the sleeve post (17).

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