Full numerical control electro-hydraulic bending machine

Abstract

The utility model relates to a bending machine, belongs to the technical field of mechanical equipment, and particularly relates to a full numerical control electro-hydraulic bending machine which comprises a table top, and a protective shell is fixedly connected to the bottom of the table top. A plate is placed on the lower die, one side of the plate abuts against the movable plate, the movable plate moves to drive the sliding block to move, the strip-shaped block on the second U-shaped block drives the first U-shaped block to move, the two shells are driven to be attached to the plate, then the hydraulic cylinder is started to drive the connecting block to move upwards, and the connecting block is matched with the rotating block, so that the plate is fixed. And a limiting clamp on a fixing column is driven to clamp and fix a plate, so that the plate is clamped and fixed, the position of the plate is limited, the bending effect of the plate is conveniently improved, and the problem that when an existing bending machine is used for bending the plate, the position of the plate is not limited and fixed is solved. And the problems that when the plate is bent, the position of the plate is likely to deviate, the plate is likely to be damaged, and the bending working efficiency is also reduced are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical equipment, in particular to a fully numerically controlled electro-hydraulic bending machine. Background Technique

[0002] A numerically controlled bending machine uses the equipped dies (general or special dies) to bend metal sheets in a cold state into workpieces with various geometric cross-sectional shapes. It is a sheet metal forming machine designed for cold-rolled sheet metal processing and is widely used in the sheet metal bending processing of industries such as automobiles, aircraft manufacturing, light industry, shipbuilding, containers, elevators, and railway vehicles.

[0003] After searching the Chinese patent with the publication number CN215144041U, a kind of electro-hydraulic fully numerically controlled bending machine is disclosed. The electro-hydraulic fully numerically controlled bending machine includes a vertical plate. One side surface of the vertical plate is fixedly connected with a control board, and the middle and lower part of the other side surface of the vertical plate is fixedly connected with a lower support plate. The upper surface of the lower support plate is fixedly connected with a first hydraulic push rod and a fixed template in sequence from left to right. The upper surface of the first hydraulic push rod is fixedly connected with a first motor, and one end of the first motor is rotatably connected with a punch.

[0004] Based on the above search and combined with the existing technology, it is found that:

[0005] When the existing bending machine bends a sheet, the position of the sheet is not limited and fixed, which easily causes the position of the sheet to shift during bending, easily causes loss to the sheet, and also reduces the bending work efficiency. Content of the Utility Model

[0006] In order to solve the above technical problems, the utility model proposes a fully numerically controlled electro-hydraulic bending machine. Place the sheet on the lower die, with one side against the moving plate. Drive the sliding block to move by the movement of the moving plate. The strip on the second U-shaped block drives the first U-shaped block to move, driving the two outer shells to fit with the sheet. Then start the hydraulic cylinder to drive the connecting block to move upward. Through the cooperation with the rotating block, drive the limiting fixture on the fixed column to clamp and fix the sheet.

[0007] The technical solution to achieve the purpose of the utility model is: a fully numerically controlled electro-hydraulic bending machine, including a tabletop. The bottom of the tabletop is fixedly connected with a protective shell. Two slide rails are provided on the bottom inner wall of the protective shell. Two outer shells are slidably connected to the two slide rails respectively. Two first strip-shaped grooves are provided on the tabletop. Both outer shells extend out of the first strip-shaped grooves. It also includes;

[0008] A fixing mechanism, and the fixing mechanism is located on the tabletop;

[0009] The fixing mechanism includes a fixing unit and a limiting unit. The fixing unit includes hydraulic cylinders fixedly connected to the inner walls of the bottoms of the two outer shells. The output ends of the two hydraulic cylinders are both connected with connecting blocks. The inner walls of the two sides of the two outer shells are respectively fixedly connected with fixing columns. The outer circumferential walls of the two fixing columns are both rotatably connected with limiting clamps. Grooves are formed on one side of each of the two limiting clamps. Rotating blocks are rotatably connected in the two grooves. The two connecting blocks are respectively in contact with the two rotating blocks.

[0010] In some embodiments, the limiting unit includes a sliding groove formed on the inner wall of the bottom of the protective shell. A sliding block is slidably connected to the sliding groove. A second strip-shaped groove is formed on the tabletop. The top of the sliding block penetrates through the second strip-shaped groove and is fixedly connected with a moving plate. First U-shaped blocks are fixedly connected to one side of the two outer shells close to each other. Second U-shaped blocks are respectively fixedly connected to both sides of the sliding block. Strip-shaped blocks are rotatably connected to the sides of the two first U-shaped blocks and the two second U-shaped blocks close to each other.

[0011] In some embodiments, torsion springs are sleeved on the two fixing columns. The two ends of each torsion spring are respectively fixedly connected to the fixing column and the limiting clamp.

[0012] In some embodiments, a telescopic column is fixedly connected to the side of the protective shell close to the sliding block. A return spring is sleeved on the telescopic column. The two ends of the return spring are respectively fixedly connected to the telescopic column and the sliding block.

[0013] In some embodiments, an upper die moving assembly and a lower die are installed on the top of the tabletop.

[0014] In some embodiments, a plurality of support columns are fixedly connected to the bottom of the tabletop.

[0015] Compared with the prior art, the remarkable advantages of the present utility model are:

[0016] In the present utility model, the sheet material is placed on the lower die, with one side abutted against the moving plate. The movement of the moving plate drives the sliding block to move. The strip-shaped block on the second U-shaped block drives the first U-shaped block to move, driving the two outer shells to fit with the sheet material. Then, the hydraulic cylinders are started to drive the connecting blocks to move upward. Through the cooperation with the rotating blocks, the limiting clamps on the fixing columns clamp and fix the sheet material. The limiting clamps can be reset through the torsion springs, and the sliding block can be reset through the return springs, which is convenient for repeated use. The clamping and fixing of the sheet material and the limitation of its position are realized, which is convenient for improving the bending effect of the sheet material.

[0017] It solves the problems that when the existing bending machine bends the sheet material, the position of the sheet material is not limited and fixed, which easily causes the position of the sheet material to shift during bending, easily causes loss to the sheet material, and also reduces the bending work efficiency. Brief Description of the Drawings

[0018] The present utility model will be further explained below in conjunction with the drawings and embodiments:

[0019] Figure 1 is a schematic diagram of the overall three-dimensional structure provided by the present utility model in one embodiment;

[0020] Figure 2 is a schematic diagram of the overall three-dimensional structure from another perspective provided by the present utility model in one embodiment;

[0021] Figure 3 is a schematic diagram of the sectional three-dimensional structure of the protective shell provided by the present utility model in one embodiment;

[0022] Figure 4 is a schematic diagram of the sectional three-dimensional structure of the outer shell provided by the present utility model in one embodiment.

[0023] Description of the reference numerals in the drawings:

[0024] 1, tabletop; 2, upper die moving component; 3, lower die; 4, protective shell; 5, outer shell; 6, hydraulic cylinder; 7, connecting block; 8, fixed column; 9, limit fixture; 10, groove; 11, rotating block; 12, torsion spring; 13, first strip-shaped groove; 14, second strip-shaped groove; 15, moving plate; 16, first U-shaped block; 17, sliding block; 18, second U-shaped block; 19, strip-shaped block; 20, telescopic column; 21, return spring; 22, support column. Detailed Description of the Embodiment

[0025] The present utility model will be described in detail below. The technical solutions in the embodiments of the present utility model are clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without making creative efforts shall fall within the protection scope of the present utility model.

[0026] The present utility model provides a fully numerically controlled electro-hydraulic bending machine through improvement. The technical solution of the present utility model is as follows:

[0027] As Figures 1 - 4As shown in the figure, a fully numerically controlled electro-hydraulic bending machine includes a table 1. A protective shell 4 is fixedly connected to the bottom of the table 1. The table 1 and the protective shell 4 are preferably fixed by welding to improve the stability between the two. Two sliding rails are provided on the bottom inner wall of the protective shell 4. An outer shell 5 is slidably connected to each of the two sliding rails. Two first strip-shaped grooves 13 are provided on the table 1. Both of the two outer shells 5 extend out of the first strip-shaped grooves 13. It further includes a fixing mechanism located on the table 1. The fixing mechanism includes a fixing unit and a limiting unit. The fixing unit includes hydraulic cylinders 6 fixedly connected to the bottom inner walls of the two outer shells 5. The outer shell 5 and the hydraulic cylinders 6 are preferably fixed by bolts for easy disassembly during maintenance. The output ends of the two hydraulic cylinders 6 are both connected with connecting blocks 7. Fixed columns 8 are respectively fixedly connected to the inner walls on both sides of the two outer shells 5. Limiting jigs 9 are rotatably connected to the circumferential outer side walls of the two fixed columns 8. Grooves 10 are provided on one side of each of the two limiting jigs 9. Rotating blocks 11 are rotatably connected to each of the two grooves 10. The two connecting blocks 7 are respectively in contact with the two rotating blocks 11. Through the setting of the fixing unit, the fixing of the plate is realized, preventing the plate from moving during bending, thereby affecting the bending effect.

[0028] As Figure 3 shown, in an embodiment, the limiting unit includes a sliding groove provided on the bottom inner wall of the protective shell 4. A sliding block 17 is slidably connected to the sliding groove. A second strip-shaped groove 14 is provided on the table 1. The top of the sliding block 17 penetrates through the second strip-shaped groove 14 and is fixedly connected with a moving plate 15. To improve the structural stability between the sliding block 17 and the moving plate 15, they are fixed by welding. First U-shaped blocks 16 are respectively fixedly connected to the sides of the two outer shells 5 close to each other. Second U-shaped blocks 18 are respectively fixedly connected to both sides of the sliding block 17. Strip-shaped blocks 19 are rotatably connected to the sides of the two first U-shaped blocks 16 and the two second U-shaped blocks 18 close to each other. Through the setting of the limiting unit, the position of the plate is limited, facilitating the limitation of different plates.

[0029] As Figure 4 shown, in an embodiment, torsion springs 12 are sleeved on both of the two fixed columns 8. The two ends of the torsion springs 12 are respectively fixedly connected to the fixed columns 8 and the limiting jigs 9. Through the setting of the torsion springs 12, the reciprocating movement of the limiting jigs 9 is realized, facilitating repeated use.

[0030] As Figure 3 shown, in an embodiment, a telescopic column 20 is fixedly connected to the sides of the protective shell 4 and the sliding block 17 close to each other. A return spring 21 is sleeved on the telescopic column 20. The two ends of the return spring 21 are respectively fixedly connected to the telescopic column 20 and the sliding block 17. Through the setting of the return spring 21, the reciprocating movement of the sliding block 17 is realized, facilitating repeated use.

[0031] like Figure 1 As shown, in one embodiment, an upper die moving assembly 2 and a lower die 3 are installed on the top of the table top 1; by setting the upper die moving assembly 2 and the lower die 3, the plate can be bent.

[0032] like Figure 1 As shown, in one embodiment, the desktop 1 and the support columns 22 are preferably connected by welding to improve stability, and a plurality of support columns 22 are fixedly connected to the bottom of the desktop 1; the support of the desktop 1 is achieved by the provision of the support columns 22.

[0033] The specific working method is: when in use, put the plate on the lower mold 3, one side of which is against the movable plate 15, and the sliding block 17 is moved by the movement of the movable plate 15, and the strip block 19 on the second U-shaped block 18 drives the first U-shaped block 16 to move, driving the two shells 5 to fit each other with the plate, and then start the hydraulic cylinder 6 to drive the connecting block 7 to move upward, and through the cooperation with the rotating block 11, drive the limit clamp 9 on the fixed column 8 to clamp and fix the plate, the limit clamp 9 can be reset by the torsion spring 12, and the sliding block 17 can be reset by the reset spring 21, which is convenient for repeated use, and realizes the clamping and position limitation of the plate, which is convenient for improving the effect of bending the plate.

[0034] The technical means disclosed in the utility model are not limited to the technical means disclosed in the above technical means, but also include technical solutions composed of equivalent replacement of the above technical features. Matters not covered in the utility model belong to the common knowledge of those skilled in the art.

Claims

1. A fully CNC electro-hydraulic bending machine, comprising a desktop (1), a protective shell (4) fixedly connected to the bottom of the desktop (1), two slide rails arranged on the inner wall of the bottom of the protective shell (4), a shell (5) slidably connected to the two slide rails, two first strip grooves (13) arranged on the desktop (1), and the two shells (5) extend out of the first strip grooves (13), characterized in that: Also includes; A fixing mechanism, the fixing mechanism being located on the tabletop (1); The fixing mechanism comprises a fixing unit and a limiting unit. The fixing unit comprises a hydraulic cylinder (6) fixedly connected to the inner wall at the bottom of the two outer shells (5). The output ends of the two hydraulic cylinders (6) are connected to connecting blocks (7). The inner walls on both sides of the two outer shells (5) are respectively and commonly connected to fixing columns (8). The circumferential outer walls of the two fixing columns (8) are both rotatably connected to limiting clamps (9). One side of the two limiting clamps (9) is provided with a groove (10). The two grooves (10) are both rotatably connected to rotating blocks (11). The two connecting blocks (7) are respectively fitted with the two rotating blocks (11).

2. A fully CNC electro-hydraulic bending machine according to claim 1, characterized in that: The limiting unit comprises a sliding groove formed on the inner wall of the bottom of the protective shell (4), a sliding block (17) being slidably connected to the sliding groove, a second strip groove (14) being formed on the desktop (1), the top of the sliding block (17) passing through the second strip groove (14) and being fixedly connected to the moving plate (15), the first U-shaped block (16) being fixedly connected to the sides of the two shells (5) close to each other, the second U-shaped blocks (18) being fixedly connected to the two sides of the sliding block (17), and the strip blocks (19) being rotatably connected to the sides of the two first U-shaped blocks (16) and the two second U-shaped blocks (18) close to each other.

3. A fully CNC electro-hydraulic bending machine according to claim 1, characterized in that: The two fixing columns (8) are both sleeved with a torsion spring (12), and the two ends of the torsion spring (12) are respectively fixedly connected to the fixing column (8) and the limiting clamp (9).

4. A fully CNC electro-hydraulic bending machine according to claim 1, characterized in that: A telescopic column (20) is fixedly connected to the side where the protective shell (4) and the sliding block (17) are close to each other. A return spring (21) is sleeved on the telescopic column (20). Two ends of the return spring (21) are respectively fixedly connected to the telescopic column (20) and the sliding block (17).

5. The fully CNC electro-hydraulic bending machine according to claim 1, characterized in that: An upper mold moving assembly (2) and a lower mold (3) are installed on the top of the table top (1).

6. The fully CNC electro-hydraulic bending machine according to claim 1, characterized in that: A plurality of support columns (22) are fixedly connected to the bottom of the table top (1).

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