Plate bending machine

Abstract

The utility model provides a plate bending machine, which relates to the technical field of plate processing, and comprises a bending table, a mounting frame fixedly arranged on the bending table, hydraulic equipment fixedly arranged on the mounting frame, an upper die connected with the hydraulic equipment, a lower die, a bending groove, polyurethane elastomer, a rolling protection component and a limiting component, the upper end of the plate is in rigid contact with the upper die, the lower end of the plate is in flexible contact with the polyurethane elastomer, and accurate position limitation is obtained, so that abrasion between the lower die and the non-bending area of the plate in the bending process can be avoided, the non-bending area of the plate cannot generate indentations, and the plate is qualified after being bent; meanwhile, the service life of the polyurethane rubber can be prolonged by means of the rolling protection assembly, the polyurethane rubber recovers deformation after the sheet metal part is bent so that the polyurethane rubber can be separated from the sheet metal part, and then the sheet metal part bending machining process is optimized.

Description

Technical Field

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

[0002] Sheet metal parts are thin-walled parts made by plastic processing of metal sheets (such as shearing, stamping, bending, welding, etc.). The thickness is usually between 0.1-6mm. They are lightweight, high-strength, and easy to form, and are widely used in industrial manufacturing.

[0003] When bending sheet metal parts, bending dies are required. Currently, both the upper and lower dies of bending dies are made of hard alloy materials. As a result, during the bending process, the non-bending areas of the sheet metal parts are prone to direct contact with the sharp edge of the lower die groove, which can lead to wear and indentation. This can result in damage to the quality of the sheet metal parts and require frequent die maintenance. In summary, the current bending process for sheet metal parts needs to be improved. Utility Model Content

[0004] The purpose of this utility model is to solve the problems mentioned in the background art and to propose a sheet metal bending processing machine.

[0005] The technical solution adopted by this utility model to solve its technical problem is:

[0006] A sheet metal bending machine includes a bending table, a mounting frame fixed on the bending table, a hydraulic device fixed on the mounting frame, an upper die connected to the hydraulic device, and also includes a lower die, a bending groove, urethane rubber, a rolling protection component, and a limiting component.

[0007] The bending groove is formed on the lower die, and the bending groove includes a vertical part and symmetrically distributed arc parts;

[0008] The urethane rubber is placed on the vertical part and adheres to the vertical part, with the upper surface of the urethane rubber being higher than the upper surface of the lower mold;

[0009] The rolling protection component is rotatably mounted on the lower mold and matches the arc part one by one. The rolling protection component is located below the urethane rubber and comes into contact with the urethane rubber during bending.

[0010] The limiting component is fixed on the lower mold.

[0011] Furthermore, the rolling protection assembly includes a fixed plate, a rotating shaft, and rollers. Two sets of fixed plates are symmetrically fixed on the lower mold, each set of fixed plates includes two plates, and a rotating shaft is rotatably connected between the fixed plates. Rollers that fit against the arc portion and can roll relative to each other are fixed on the rotating shaft, and the rollers are in conjunction with urethane rubber.

[0012] Furthermore, the limiting component includes a limiting plate and a positioning rod. The limiting plate is symmetrically fixed on the lower mold, and the positioning rod is fixed at one end of the limiting plate.

[0013] Furthermore, rubber pads are provided on both the limiting plate and the positioning rod.

[0014] Furthermore, an adjustable automatic feeding component is provided on the front end face of the lower mold to avoid affecting the initial placement of the sheet material.

[0015] Furthermore, the automatic feeding assembly includes a vertical telescopic component, a multi-stage telescopic cylinder, and a feeding plate. The vertical telescopic component is fixed on the lower mold, and the vertical telescopic component is connected to the multi-stage telescopic cylinder, which is connected to the feeding plate.

[0016] Furthermore, a collection box is placed on the bending table. The collection box is located on the side of the lower die away from the automatic feeding component, and a buffer pad is provided inside the collection box.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] Compared to existing technologies, in this application, the upper end of the sheet metal is in rigid contact with the upper mold, while the lower end of the sheet metal is in flexible contact with the urethane and is accurately positioned. This avoids wear between the lower mold and the non-bending area of ​​the sheet metal during bending, thus preventing indentations in the non-bending area of ​​the sheet metal, resulting in qualified quality after bending, significantly reducing the defect rate and the frequency of mold maintenance. At the same time, the rolling protection component can extend the service life of the urethane. After the sheet metal is bent, the urethane recovers its deformation to separate from the sheet metal, thereby optimizing the sheet metal bending process. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 for Figure 1 Enlarged view of section A (labeled A);

[0021] Figure 3 This is a schematic diagram of the automatic feeding assembly installation.

[0022] Figure label:

[0023] 1. Bending table; 2. Mounting frame; 3. Hydraulic equipment; 4. Upper die; 5. Lower die; 6. Bending groove; 61. Vertical part; 62. Arc part; 7. Polyurethane rubber; 8. Fixing plate; 9. Rotating shaft; 10. Roller; 11. Limiting plate; 12. Positioning rod; 13. Rubber pad; 14. Vertical telescopic component; 15. Multi-stage telescopic cylinder; 16. Push plate; 17. Collection box. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present utility model, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model. The present utility model will be further described with reference to the accompanying drawings and embodiments:

[0025] like Figure 1 and Figure 2 As shown, a sheet metal bending machine includes a bending table 1, a mounting frame 2 fixed on the bending table 1, a hydraulic device 3 fixed on the mounting frame 2, an upper die 4 connected to the hydraulic device 3, and also includes a lower die 5, a bending groove 6, urethane rubber 7, a rolling protection component, and a limiting component.

[0026] The bending groove 6 is formed on the lower die 5. The bending groove 6 includes a vertical part 61 and symmetrically distributed arc parts 62.

[0027] The urethane 7 is placed on the vertical part 61 and is attached to the vertical part 61. The upper surface of the urethane 7 is higher than the upper surface of the lower mold 5.

[0028] The rolling protection component is rotatably mounted on the lower mold 5 and is attached to and corresponds one-to-one with the arc part 62. The rolling protection component is located below the urethane 7 and contacts the urethane 7 during bending.

[0029] The limiting component is fixed on the lower mold 5.

[0030] Specific implementation of the embodiments of this utility model, such as Figure 1 and Figure 2 As shown, the rolling protection assembly includes a fixed plate 8, a rotating shaft 9, and a roller 10. Two sets of fixed plates 8 are symmetrically fixed on the lower mold 5. Each set of fixed plates 8 includes two rollers. A rotating shaft 9 is rotatably connected between the fixed plates 8. A roller 10 that fits against the arc part 62 and can roll relative to it is fixed on the rotating shaft 9. The roller 10 cooperates with the urethane rubber 7.

[0031] Specific implementation of the embodiments of this utility model, such as Figure 1 and Figure 2 As shown, the limiting component includes a limiting plate 11 and a positioning rod 12. The limiting plate 11 is symmetrically fixed on the lower mold 5, and the positioning rod 12 is fixed at one end of the limiting plate 11.

[0032] To prevent wear on the sheet metal caused by the limiting component during placement and subsequent bending, the above-described embodiments are further optimized, such as... Figure 1 and Figure 3 As shown, rubber pads 13 are provided on both the limiting plate 11 and the positioning rod 12.

[0033] It should be noted that the hydraulic device 3 is electrically connected to the controller, which is not labeled in the figure.

[0034] The working process of this utility model:

[0035] First, place the sheet material flat on the surface of the urethane 7 (the sheet material is not numbered in the figure). During placement, the placement area of ​​the sheet material is limited by the limiting component. When the front end of the sheet material contacts the rubber pad 13 on the positioning rod 12, the limiting is completed. Then, the hydraulic device 3 is operated by the controller, which drives the upper mold 4 to move down. At this time, the urethane 7 is bent together with the sheet material, which can avoid the wear of the non-bending area of ​​the sheet material by the lower mold 5 during the bending process. Therefore, no indentation will be generated in the non-bending area of ​​the sheet material. When the urethane 7 bends downward, it will contact the roller 10. At this time, due to the rolling contact, the wear on the surface of the urethane 7 can be significantly reduced. At the same time, the sheet material and the urethane 7 are in flexible contact, so no indentation or wear will be generated in the non-bending area, thus ensuring the quality of the sheet metal after bending. After the bending is completed, the upper mold 4 moves away from the sheet metal, and then the urethane 7 recovers its deformation and can be separated from the sheet material. Then the bent sheet metal can be removed.

[0036] To achieve automatic unloading of bent sheet metal parts, and to ensure that the unloading and collection process does not affect the placement of the next sheet metal part; in some embodiments, such as Figure 3 As shown, an automatic feeding component that can be raised and lowered is provided on the front end face of the lower mold 5 so as not to affect the initial placement of the sheet metal;

[0037] Specifically, the automatic feeding assembly includes a vertical telescopic component 14, a multi-stage telescopic cylinder 15, and a feeding plate 16. The vertical telescopic component 14 is fixed on the lower mold 5. The vertical telescopic component 14 is connected to the multi-stage telescopic cylinder 15, and the multi-stage telescopic cylinder 15 is connected to the feeding plate 16.

[0038] Further optimizations of the above-described embodiments, such as... Figure 3 As shown, a collection box 17 is placed on the bending table 1. The collection box 17 is located on the side of the lower die 5 away from the automatic pusher assembly, and a buffer pad is provided inside the collection box 17. In this embodiment, after the sheet metal part is bent, the controller controls the vertical telescopic component 14 to move a preset distance and then stop. At this time, the pusher plate 16 is on one side of the sheet metal part. Then, the controller controls the multi-stage telescopic cylinder 15 to operate, which pushes the sheet metal part into the collection box 17. This reduces the labor intensity of manual intervention. After the sheet metal part is successfully placed into the collection box 17, the automatic pusher assembly is reset (as shown in the instruction manual). Figure 3 (As shown in the diagram) so as not to affect the placement limit of the next plate.

[0039] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The descriptions of the above embodiments and specifications are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of protection claimed by this utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A sheet metal bending processing machine, comprising a bending table (1), a mounting frame (2) fixedly mounted on the bending table (1), a hydraulic device (3) fixedly mounted on the mounting frame (2), and an upper die (4) connected to the hydraulic device (3), characterized in that, It also includes a lower mold (5), a bending groove (6), urethane rubber (7), a rolling protection component, and a limiting component. The bending groove (6) is formed on the lower die (5). The bending groove (6) includes a vertical part (61) and symmetrically distributed arc parts (62). The urethane (7) is placed on the vertical part (61) and is attached to the vertical part (61). The upper surface of the urethane (7) is higher than the upper surface of the lower mold (5). The rolling protection component is rotatably mounted on the lower mold (5) and matches the arc part (62) one by one. The rolling protection component is located below the urethane rubber (7) and contacts the urethane rubber (7) when bending. The limiting component is fixed on the lower mold (5).

2. A plate bending machine according to claim 1, wherein The rolling protection assembly includes a fixed plate (8), a rotating shaft (9), and a roller (10). Two sets of fixed plates (8) are symmetrically fixed on the lower mold (5). Each set of fixed plates (8) includes two. A rotating shaft (9) is rotatably connected between the fixed plates (8). A roller (10) that fits against the arc part (62) and can roll relative to it is fixed on the rotating shaft (9). The roller (10) is in conjunction with the urethane rubber (7).

3. The plate bending machine according to claim 1, wherein The limiting component includes a limiting plate (11) and a positioning rod (12). The limiting plate (11) is symmetrically fixed on the lower mold (5), and the positioning rod (12) is fixed at one end of the limiting plate (11).

4. A plate bending machine according to claim 3, wherein Rubber pads (13) are provided on both the limiting plate (11) and the positioning rod (12).

5. The plate bending machine according to claim 1, wherein The lower mold (5) is provided with an automatic pusher assembly that can be raised and lowered so as not to affect the initial placement of the sheet material.

6. A plate bending machine according to claim 5, wherein The automatic feeding assembly includes a vertical telescopic component (14), a multi-stage telescopic cylinder (15), and a feeding plate (16). The vertical telescopic component (14) is fixed on the lower mold (5). The vertical telescopic component (14) is connected to the multi-stage telescopic cylinder (15), and the multi-stage telescopic cylinder (15) is connected to the feeding plate (16).

7. The plate bending machine according to claim 5, wherein A collection box (17) is placed on the bending table (1). The collection box (17) is located on the side of the lower die (5) away from the automatic feeding component, and a buffer pad is provided inside the collection box (17).

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