Material blocking equipment for numerical control bending machine

Abstract

The invention belongs to the technical field of numerical control bending machines, and particularly relates to material blocking equipment for a numerical control bending machine, which comprises a bottom plate, a stamping table is fixedly connected to the bottom plate, and two front material blocking mechanisms which are correspondingly arranged left and right are arranged at the front end of the stamping table; the front material blocking mechanism comprises two first supporting plates which are correspondingly arranged up and down, the two first supporting plates are both fixedly connected with the stamping table, a rotating rod is jointly and rotationally connected between the two first supporting plates, the rotating rod is fixedly sleeved with a rotating block, and the front end of the rotating block is fixedly connected with a rectangular table. The device can support a metal plate through the two front material blocking mechanisms when the metal plate is bent and upwarped, certain damage caused by falling of the metal plate due to gravity is prevented, manual supporting is not needed, the two front material blocking mechanisms are folded and fixed when the device does not work, the effect of saving space is achieved, the device can adapt to the metal plates with different widths, and the working efficiency is improved. And the bending position of the metal plate is adjusted.

Description

Technical Field

[0001] The invention relates to the technical field of numerical control bending machines, and in particular to a material blocking device used for numerical control bending machines. Background Art

[0002] CNC bending machine is a machine that uses computer control technology to bend metal sheets. It accurately controls the bending angle and position through the CNC system to achieve high-precision and high-repeatability bending operations. It is a sheet forming machine designed for cold-rolled sheet metal processing and is widely used in sheet bending processing in industries such as automobiles, aircraft manufacturing, light industry, shipbuilding, containers, elevators, and railway vehicles.

[0003] The material stopper of a CNC bending machine usually includes a front stopper and a rear stopper. The front stopper is used to hold the sheet to ensure that the sheet is in a horizontal plane when being bent; the rear stopper is used to support and position the rear end of the sheet to ensure stability throughout the entire process. When the metal sheet is bent, the stamping of the punch block will cause the metal sheet to warp. After the punch block completes the bending and leaves the punching slot, the warped metal sheet will fall due to gravity. When the metal sheet is too large, the fall of the warped metal sheet will cause certain damage, and it is dangerous to support it manually.

[0004] Therefore, we proposed a material blocking device for CNC bending machine to solve the above problems. Summary of the invention

[0005] The purpose of the present invention is to solve the shortcomings of the prior art and to propose a material blocking device for a CNC bending machine.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions: A material blocking device for a CNC bending machine comprises a bottom plate, a punching table is fixedly connected to the bottom plate, two front material blocking mechanisms are arranged correspondingly on the left and right sides of the front end of the punching table, and the front material blocking mechanism comprises two first support plates arranged correspondingly up and down. The two first support plates are fixedly connected to the punching table, and a rotating rod is rotatably connected between the two first support plates. A rotating block is fixedly sleeved on the rotating rod, and a rectangular table is fixedly connected to the front end of the rotating block. A first U-shaped block is fixedly connected to the upper front end of the rectangular table, and a support frame is rotatably connected to the first U-shaped block. The lower end of the support frame A second U-shaped block is fixedly connected thereto, and a movable rod is rotatably connected to the second U-shaped block, the lower end of the rotating rod passes through the first supporting plate located below, the lower end of the rotating rod is fixedly connected to the rotating plate, the front end of the rotating plate is fixedly connected to the first rectangular frame, a first threaded rod is rotatably connected between the front and rear inner walls of the first rectangular frame, a moving block is threadedly sleeved on the first threaded rod, the upper end of the moving block is fixedly connected to a third U-shaped block, one end of the movable rod away from the second U-shaped block is rotatably connected to the third U-shaped block, and a first motor that drives the first threaded rod to rotate is fixedly installed at the front end of the first rectangular frame.

[0007] Preferably, the upper end of the base plate is fixedly connected to a second rectangular frame, and a second threaded rod is rotatably connected between the front and rear inner walls of the second rectangular frame, a movable base is threadedly sleeved on the second threaded rod, and a second motor that drives the second threaded rod to rotate is fixedly installed on the rear end of the second rectangular frame, and the upper end of the movable base is fixedly connected to a support platform, and the upper end of the support platform is fixedly connected to two second support plates correspondingly arranged on the left and right, and a bidirectional threaded rod is rotatably connected between the two second support plates, and a limiting rod is fixedly connected between the two second support plates, and two stop blocks correspondingly arranged on the left and right are threadedly sleeved on the bidirectional threaded rod, and the two stop blocks are slidably sleeved on the limit rod, and a third motor that drives the bidirectional threaded rod to rotate is fixedly installed on one end of one of the second support plates away from the other second support plate.

[0008] Preferably, the upper end of the base plate is fixedly connected to two slide rails correspondingly arranged on the left and right, and the two slide rails are slidably connected to sliding blocks, and the upper ends of the two sliding blocks are fixedly connected to the support platform.

[0009] Preferably, a stamping groove is provided at the upper end of the stamping table, connecting frames are provided at both ends of the stamping table, a stamping box is fixedly connected between the two connecting frames, two telescopic cylinders are provided in the stamping box, the telescopic ends of the two telescopic cylinders are both facing downward and passing through the lower end of the stamping box, and the telescopic ends of the two telescopic cylinders are fixedly connected with a stamping knife block.

[0010] Preferably, pulleys are installed at the lower ends of the first rectangular frames in the two front stopper mechanisms.

[0011] Preferably, the left and right ends of the base plate are fixedly connected with a retaining plate, the front ends of the two retaining plates are provided with a first magnetic block, the ends of the first rectangular frames in the two front stop mechanisms that are away from each other are provided with a second magnetic block, and the front end of the stamping table is provided with two baffles correspondingly arranged on the left and right, and the two baffles are located between the two front stop mechanisms.

[0012] Preferably, the two stop blocks are respectively threadedly sleeved on two parts of the bidirectional threaded rod with opposite thread rotation directions.

[0013] Preferably, the front ends of the support frames in the two front stopper mechanisms are both smooth curved surfaces.

[0014] Compared with the existing technology, the advantages of this device are: When the punching blade is pressed into the punching groove to bend the metal sheet, the metal sheet tilts up. At this time, the support frames in the two front stop mechanisms rotate upward, and the front ends of the two support frames resist the tilted metal sheet to support it. After the punching blade leaves the punching groove, the tilted metal sheet will not fall down due to gravity.

[0015] The two blocking blocks can move towards or away from each other to adapt to metal sheets of different widths. The two blocking blocks can be adjusted in front and back positions to adjust the bending position of the metal sheet.

[0016] When the device is not working, the two front stopper mechanisms can be folded up and fixed by the two first magnetic blocks and the two second magnetic blocks, thereby achieving the effect of saving space.

[0017] To sum up, the device can support the metal sheet through the two front stopper mechanisms when the metal sheet is bent and warped, preventing it from falling due to gravity and causing certain damage. No manual support is required, and the two front stopper mechanisms are folded and fixed when the equipment is not working, thereby achieving the effect of saving space. It can adapt to metal sheets of different widths and adjust the bending position of the metal sheet. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A three-dimensional diagram of a material blocking device for a CNC bending machine proposed by the present invention; Figure 2 This is a rear view of a material blocking device for a CNC bending machine proposed by the present invention; Figure 3 A side view of a material blocking device for a CNC bending machine proposed by the present invention; Figure 4 A top view of a material blocking device for a CNC bending machine proposed by the present invention; Figure 5 A three-dimensional diagram of a front material stopper mechanism in a material stopper device for a CNC bending machine proposed by the present invention; Figure 6 for Figure 1 Enlarged view of point A in the middle.

[0019] In the figure: 1 bottom plate, 2 first support plate, 3 rotating rod, 4 rotating block, 5 rectangular table, 6 first U-shaped block, 7 support frame, 8 second U-shaped block, 9 movable rod, 10 rotating plate, 11 first rectangular frame, 12 first threaded rod, 13 moving block, 14 third U-shaped block, 15 first motor, 16 second rectangular frame, 17 second threaded rod, 18 moving base, 19 supporting platform, 20 second support plate, 21 bidirectional threaded rod, 22 limiting rod, 23 blocking block, 24 slide rail, 25 sliding block, 26 stamping table, 27 connecting frame, 28 stamping box, 29 stamping knife block, 30 second motor, 31 fixing plate, 32 first magnetic block, 33 second magnetic block, 34 pulley, 35 third motor. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0021] It should be noted that, in the description of the present invention, the terms "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc. indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0022] Reference Figure 1-Figure 6A material blocking device for a CNC bending machine includes a bottom plate 1, a punching table 26 is fixedly connected to the bottom plate 1, and two front material blocking mechanisms are arranged correspondingly on the left and right at the front end of the punching table 26. The front material blocking mechanism includes two first support plates 2 arranged correspondingly up and down. The two first support plates 2 are fixedly connected to the punching table 26, and a rotating rod 3 is rotatably connected between the two first support plates 2. A rotating block 4 is fixedly sleeved on the rotating rod 3, and a rectangular table 5 is fixedly connected to the front end of the rotating block 4. A first U-shaped block 6 is fixedly connected to the upper position of the front end of the rectangular table 5, and a support frame 7 is rotatably connected to the first U-shaped block 6. The lower end of the support frame 7 is fixedly connected to the second A U-shaped block 8, a movable rod 9 is rotatably connected to the second U-shaped block 8, the lower end of the rotating rod 3 passes through the first supporting plate 2 located below, the lower end of the rotating rod 3 is fixedly connected to a rotating plate 10, the front end of the rotating plate 10 is fixedly connected to a first rectangular frame 11, a first threaded rod 12 is rotatably connected between the front and rear inner walls of the first rectangular frame 11, a moving block 13 is threadedly sleeved on the first threaded rod 12, the upper end of the moving block 13 is fixedly connected to a third U-shaped block 14, one end of the movable rod 9 away from the second U-shaped block 8 is rotatably connected to the third U-shaped block 14, and a first motor 15 that drives the first threaded rod 12 to rotate is fixedly installed at the front end of the first rectangular frame 11. In the initial state, when the moving block 13 in the front stop mechanism is located at the front end in the corresponding first rectangular frame 11, the upper ends of the support frame 7 and the punching table 26 are in a horizontal state, and the first threaded rod 12 is driven to rotate by the first motor 15. The moving block 13 fits with the inner wall of the corresponding first rectangular frame 11 to play a limiting role. Under the limit, the moving block 13 moves backward, and the movable rod 9 is driven to move by the moving block 13 moving backward. When the moving block 13 moves backward, the distance between it and the support frame 7 will gradually shorten, so that the moving block 13 lifts the support frame 7 through the movable rod 9, so that it changes from a horizontal state to an inclined state.

[0023] The lower ends of the first rectangular frames 11 in the two front stopper mechanisms are both installed with pulleys 34, the left and right ends of the bottom plate 1 are both fixedly connected with retaining plates 31, the front ends of the two retaining plates 31 are both provided with first magnetic blocks 32, the ends of the first rectangular frames 11 in the two front stopper mechanisms that are away from each other are both provided with second magnetic blocks 33, and the front end of the punching table 26 is provided with two baffles that are correspondingly arranged on the left and right, and the two baffles are both located between the two front stopper mechanisms. The two front stopper mechanisms can be rotated by the corresponding pulleys 34 with the corresponding rotating rods 3 as the rotation fulcrums, and when the two front stopper mechanisms are rotated to a vertical state with the punching table 26, they will be held against by the baffles arranged at the front end of the punching table 26 for position limiting, and when the front stopper mechanisms are not needed, the two front stopper mechanisms can be rotated to the two sides of the action respectively, and the second magnetic blocks 33 on the two front stopper mechanisms are respectively fixed to the two first magnetic blocks 32 by magnetic attraction, so that the two front stopper mechanisms can be folded up to achieve the effect of saving space.

[0024] The upper end of the punching table 26 is provided with a punching groove, and the two ends of the punching table 26 are provided with connecting frames 27. A punching box 28 is fixedly connected between the two connecting frames 27. Two telescopic cylinders are provided in the punching box 28. The telescopic ends of the two telescopic cylinders are both downward and penetrate the lower end of the punching box 28. The telescopic ends of the two telescopic cylinders are fixedly connected with a punching blade block 29. The metal sheet is placed on the upper end of the punching table 26, and the punching blade block 29 is driven by the two telescopic cylinders to punch downward into the punching groove. The punching blade 29 and the punching groove are both triangular, so as to bend the metal sheet.

[0025] A second rectangular frame 16 is fixedly connected to the upper end of the bottom plate 1, and a second threaded rod 17 is rotatably connected between the front and rear inner walls of the second rectangular frame 16. A movable base 18 is threadedly sleeved on the second threaded rod 17. A second motor 30 that drives the second threaded rod 17 to rotate is fixedly installed at the rear end of the second rectangular frame 16. A support platform 19 is fixedly connected to the upper end of the movable base 18. Two second support plates 20 correspondingly arranged on the left and right are fixedly connected to the upper end of the support platform 19. A bidirectional threaded rod 21 is rotatably connected between the two second support plates 20. The two second support plates 20 are fixedly connected to each other. The two-way threaded rod 22 is threadedly sleeved with two corresponding stopper blocks 23 on the left and right sides, and the two stopper blocks 23 are both slidably sleeved on the limit rod 22. One end of one second support plate 20 away from the other second support plate 20 is fixedly installed with a third motor 35 for driving the two-way threaded rod 21 to rotate. The two stopper blocks 23 are respectively threadedly sleeved on the two parts of the two-way threaded rod 21 with opposite threads. The two-way threaded rod 21 is driven to rotate by the third motor 35, so that the two stopper blocks 23 move closer to or away from each other under the limit of the limit rod 22, thereby adapting to metal sheets of different widths. The metal sheet can be placed on the support frames 7 of the two front stopper mechanisms and pushed backward until it contacts the two stopper blocks 23 , and the metal sheet is bent at a position above the stamping groove at the upper end of the stamping table 26 by the stamping blade 29 .

[0026] The upper end of the base plate 1 is fixedly connected to two left and right corresponding slide rails 24, and the two slide rails 24 are slidably connected to sliding blocks 25. The upper ends of the two sliding blocks 25 are fixedly connected to the support platform 19, and the second threaded rod 17 is driven to rotate by the second motor 30. The mobile base 18 drives the support platform 19 to move forward and backward under the limitation of the two sliding blocks 25 and the corresponding slide rails 24, thereby adjusting the position of the two stop blocks 23 forward and backward, and adjusting the position of the metal sheet above the stamping groove at the upper end of the stamping table 26 when the metal sheet is against the two stop blocks 23, thereby adjusting the bending position of the metal sheet.

[0027] When the punching knife block 29 is pressed into the punching groove to bend the metal sheet, the metal sheet rises. At this time, the support frame 7 in the two front stop mechanisms rotates upward, and the front ends of the two support frames 7 resist the raised metal sheet to support it. After the punching knife block 29 leaves the punching groove, the raised metal sheet will not fall down due to gravity. Then the support frame 7 drives the metal sheet to slowly return to a horizontal state, and the operator can remove the bent metal sheet. The front ends of the support frames 7 in the two front stop mechanisms are both smooth curved surfaces to prevent them from scratching the metal sheet when supporting it.

[0028] When using the present invention, the metal sheet can be placed on the support frame 7 of the two front stopper mechanisms and pushed backwards until it contacts the two stopper blocks 23. The metal sheet is bent at the position above the stamping groove at the upper end of the stamping table 26 by the stamping knife block 29. The two stopper blocks 23 can move towards or away from each other to adapt to metal sheets of different widths. The two stopper blocks 23 can be adjusted in front and back positions to adjust the bending position of the metal sheet. After the metal sheet is bent, the front ends of the support frames 7 in the two front stopper mechanisms contact the tilted metal sheet to support it so that it will not fall over due to gravity. Then the support frame 7 drives the metal sheet to slowly return to a horizontal state, and the operator can remove the bent metal sheet. When the equipment is not working, the two front stopper mechanisms can be folded up and fixed by the two first magnetic blocks 32 and the two second magnetic blocks 33 to achieve the effect of saving space.

[0029] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A material blocking device for a CNC bending machine, comprising a bottom plate (1), characterized in that: A punching table (26) is fixedly connected to the bottom plate (1), and two front stopper mechanisms are arranged correspondingly on the left and right at the front end of the punching table (26), and the front stopper mechanisms include two first support plates (2) arranged correspondingly on the top and bottom. The two first support plates (2) are fixedly connected to the punching table, and a rotating rod (3) is rotatably connected between the two first support plates (2). A rotating block (4) is fixedly sleeved on the rotating rod (3), and a rectangular table (5) is fixedly connected to the front end of the rotating block (4). A first U-shaped block (6) is fixedly connected to the front end of the rectangular table (5) at an upper position, and a support frame (7) is rotatably connected to the first U-shaped block (6). The lower end of the support frame (7) is fixedly connected to a second U-shaped block (8), and the second U-shaped block (8) is fixedly connected to the bottom end of the second U-shaped block (8). ) is rotatably connected to a movable rod (9), the lower end of the rotating rod (3) passes through a first supporting plate (2) located below, the lower end of the rotating rod (3) is fixedly connected to a rotating plate (10), the front end of the rotating plate (10) is fixedly connected to a first rectangular frame (11), a first threaded rod (12) is rotatably connected between front and rear inner walls of the first rectangular frame (11), a moving block (13) is threadedly sleeved on the first threaded rod (12), the upper end of the moving block (13) is fixedly connected to a third U-shaped block (14), one end of the movable rod (9) away from the second U-shaped block (8) is rotatably connected to the third U-shaped block (14), and a first motor (15) for driving the first threaded rod (12) to rotate is fixedly installed at the front end of the first rectangular frame (11).

2. The material blocking device for a CNC bending machine according to claim 1, characterized in that: The upper end of the bottom plate (1) is fixedly connected to a second rectangular frame (16); a second threaded rod (17) is rotatably connected between the front and rear inner walls of the second rectangular frame (16); a movable base (18) is threadedly sleeved on the second threaded rod (17); a second motor (30) for driving the second threaded rod (17) to rotate is fixedly mounted on the rear end of the second rectangular frame (16); a support platform (19) is fixedly connected to the upper end of the support platform (19); and two second support plates (30) are fixedly connected to the upper end of the support platform (19) and are arranged correspondingly on the left and right. A plate (20), a bidirectional threaded rod (21) is rotatably connected between the two second support plates (20), a limiting rod (22) is fixedly connected between the two second support plates (20), two stopper blocks (23) are threadedly sleeved on the bidirectional threaded rod (21) and are arranged correspondingly on the left and right, and the two stopper blocks (23) are slidably sleeved on the limiting rod (22), and a third motor (35) for driving the bidirectional threaded rod (21) to rotate is fixedly installed on one end of one of the second support plates (20) away from the other second support plate (20).

3. The material blocking device for a CNC bending machine according to claim 2, characterized in that: The upper end of the base plate (1) is fixedly connected to two slide rails (24) arranged correspondingly on the left and right, and the two slide rails (24) are slidably connected to a slide block (25), and the upper ends of the two slide blocks (25) are fixedly connected to the support platform (19).

4. The material blocking device for a CNC bending machine according to claim 1, characterized in that: The upper end of the punching platform (26) is provided with a punching groove, and connecting frames (27) are provided at both ends of the punching platform (26). A punching box (28) is fixedly connected between the two connecting frames (27). Two telescopic cylinders are provided in the punching box (28), and the telescopic ends of the two telescopic cylinders are both downward and penetrate the lower end of the punching box (28). The telescopic ends of the two telescopic cylinders are fixedly connected to a punching knife block (29).

5. The material blocking device for a CNC bending machine according to claim 1, characterized in that: A pulley (34) is installed at the lower end of the first rectangular frame (11) in the two front stopper mechanisms.

6. The material blocking device for a CNC bending machine according to claim 1, characterized in that: The left and right ends of the bottom plate (1) are fixedly connected with a retaining plate (31), the front ends of the two retaining plates (31) are provided with a first magnetic block (32), the ends of the first rectangular frames (11) in the two front stopper mechanisms that are away from each other are provided with a second magnetic block (33), and the front end of the punching table (26) is provided with two baffles arranged correspondingly on the left and right, and the two baffles are located between the two front stopper mechanisms.

7. The material blocking device for a CNC bending machine according to claim 2, characterized in that: The two material blocking blocks (23) are respectively threadedly sleeved on two parts of the bidirectional threaded rod (21) with opposite thread rotation directions.

8. The material blocking device for a CNC bending machine according to claim 1, characterized in that: The front ends of the support frames (7) in the two front stopper mechanisms are both smooth curved surfaces.

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