Sheet metal bending machine capable of preventing displacement

Abstract

The utility model discloses a sheet metal bending machine capable of preventing displacement, which relates to the technical field of sheet metal bending machines and comprises a workbench, a support is arranged on the workbench, a first hydraulic cylinder is arranged on the support, the bottom of the first hydraulic cylinder is connected with a pressing seat, and a material blocking mechanism is arranged on the workbench below the pressing seat. The material blocking mechanism comprises a lead screw horizontally and rotatably installed in the workbench, one end of the lead screw is fixedly connected with the output end of a first motor, a sliding block is movably installed on the lead screw, a material blocking rod is fixedly connected to the top of the sliding block and movably arranged in a long groove in the workbench, and a bending mechanism is arranged at one end of the workbench. According to the design scheme, the device can bend different positions and bevel edges of sheet metal parts through the material blocking mechanism, bending is more labor-saving through the bending mechanism, the precision of the bending angle is higher, the application range is wide, the working efficiency and the machining precision are improved, and the burden of workers is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of sheet metal bending machines, in particular to a sheet metal bending machine for preventing displacement. Background Art

[0002] Generally speaking, the basic equipment of sheet metal technology includes shearing machines, CNC punching machines, bending machines, etc. Generally, some metal sheets are plastically deformed manually or by die stamping to form the desired shapes and sizes. The existing sheet metal bending machines cannot fix the sheet metal well to prevent displacement during bending, and cannot control the bending angle according to requirements during bending.

[0003] The authorized announcement number CN218108934U discloses a sheet metal bending machine for preventing displacement. By setting a pressing seat, a handle, a rotating rod and a connecting sleeve, and making them cooperate with each other, the pressing of the sheet metal can be realized, avoiding its displacement. Moreover, through manual adjustment, it is convenient to master the pressing force. When pressing the sheet metal, the sheet metal is placed between the workbench and the pressing seat, and then the handle is rotated, so that the rotating rod rotates, and the rotating rod pushes the pressing seat to move downward, thereby pressing the sheet metal, which greatly improves the use effect of the sheet metal bending machine.

[0004] However, the above patent still has deficiencies. There is a lack of a material blocking mechanism. When the pressing seat presses the sheet metal, the sheet metal part is located under the pressing seat. The lack of a material blocking mechanism cannot ensure the accuracy of sheet metal bending, and it is easy to cause deviations in the bending dimensions. In this patent, the staff manually lifts the handle to control the bending angle, which not only cannot ensure the processing accuracy, but also increases the burden on the staff, is time-consuming and laborious, and has low efficiency. Summary of the Utility Model

[0005] In order to overcome the above-mentioned defects existing in the prior art, the utility model provides a sheet metal bending machine for preventing displacement.

[0006] The technical solution adopted by the utility model to solve its technical problems is: a sheet metal bending machine for preventing displacement, including a workbench, a bracket is arranged on the workbench, a first hydraulic cylinder is arranged on the bracket, the bottom of the first hydraulic cylinder is connected with a pressing seat, a material blocking mechanism is arranged on the workbench below the pressing seat, the material blocking mechanism includes a lead screw horizontally and rotatably installed in the workbench, one end of the lead screw is fixedly connected with the output end of a first motor, a slider is movably installed on the lead screw, a material blocking rod is fixedly connected to the top of the slider, the material blocking rod is movably arranged in a long groove on the workbench, and a bending mechanism is arranged at one end of the workbench.

[0007] Furthermore, multiple groups of the lead screws are arranged in parallel, and a control panel of the first motors connected to the multiple groups of lead screws is arranged on the side of the workbench.

[0008] Furthermore, the material blocking rod is an elastic telescopic rod arranged vertically.

[0009] Furthermore, the bending mechanism includes a bending plate which is hinged to the workbench. There is a fixing plate on the workbench below the bending plate. A second hydraulic cylinder is provided on the fixing plate. The output end of the second hydraulic cylinder is rotatably connected to a hinge seat, and the hinge seat is slidably arranged at the bottom of the bending plate.

[0010] Furthermore, a sector angle plate is provided at the hinge joint between the workbench and the bending plate. The sector angle plate is fixedly connected to the workbench and is concentric with the hinge axis of the workbench and the bending plate. A worm gear is rotatably installed at the center of the sector angle plate. The worm gear meshes with a worm. One end of the worm is fixedly connected to the output end of a second motor, and the second motor is fixedly installed on the side of the workbench.

[0011] Furthermore, the sector angle plates are symmetrically arranged on both sides of the workbench. Fixing rods are fixedly arranged in the radial direction of the worm gear. The outer ends of the fixing rods are movably arranged in the arc-shaped chutes on the sector angle plates. Scale lines are provided outside the arc-shaped chutes. Infrared transmitting and receiving devices are respectively arranged between the opposite surfaces of the two fixing rods.

[0012] The beneficial effects of the present utility model are as follows. In the design scheme of the present utility model, multiple first motors are controlled through a control panel to move multiple material blocking rods to different positions, so that bending operations of different angles and positions can be performed on the sheet metal. When bending, the second hydraulic cylinder extends to bend the sheet metal fixed under the pressing seat. The second motor drives the infrared transmitting and receiving devices on the fixing rods to rotate through the worm gear and the worm. The position of the fixing rod on the sector angle plate is the bending angle of the sheet metal. During the process of the second hydraulic cylinder bending the sheet metal, when the sheet metal is just between the infrared transmitting and receiving devices, the second hydraulic cylinder stops moving, and this is the required bending angle at this time. The material blocking mechanism enables the device to bend the sheet metal parts at different positions and bevels. The bending mechanism makes the bending more labor-saving and the accuracy of the bending angle higher. It has a wide range of applications, improves the work efficiency and processing accuracy, and reduces the burden on the staff. Description of the Drawings

[0013] The following further illustrates the present utility model in conjunction with the drawings and embodiments.

[0014] Figure 1 is the side view of the present utility model;

[0015] Figure 2 is Figure 1 the partial cross-sectional view of

[0016] Figure 3 is Figure 1 the partial enlarged view of area A in

[0017] Figure 4 This is the front view of the present utility model.

[0018] In the figure: 1. Workbench, 2. Bracket, 3. First hydraulic cylinder, 4. Pressing seat, 5. Lead screw, 6. First motor, 7. Slide block, 8. Material blocking rod, 9. Long groove, 10. Control panel, 11. Bending plate, 12. Fixed plate, 13. Second hydraulic cylinder, 14. Hinge seat, 15. Sector angle plate, 16. Worm gear, 17. Worm, 18. Second motor, 19. Fixed rod, 20. Arc-shaped chute. Detailed implementation manner

[0019] In order to more clearly illustrate the technical solution of the present utility model, the present utility model will be further described below with reference to the accompanying drawings. Obviously, the accompanying drawings described below are only one embodiment of the present utility model. For those of ordinary skill in the art, without creative efforts, other embodiments obtained according to this drawing and embodiment all fall within the protection scope of the present utility model.

[0020] As Figures 1 to 4 shown, a sheet metal bending machine for preventing displacement includes a workbench 1. A bracket 2 is provided on the workbench 1. A first hydraulic cylinder 3 is arranged on the bracket 2. The bottom of the first hydraulic cylinder 3 is connected to a pressing seat 4. A material blocking mechanism is provided on the workbench 1 below the pressing seat 4. The material blocking mechanism includes a lead screw 5 horizontally and rotatably installed in the workbench 1. One end of the lead screw 5 is fixedly connected to the output end of a first motor 6. A slide block 7 is movably installed on the lead screw 5. The top of the slide block 7 is fixedly connected to a material blocking rod 8. The material blocking rod 8 is movably arranged in a long groove 9 on the workbench 1. A bending mechanism is provided at one end of the workbench 1.

[0021] Multiple groups of lead screws 5 are arranged in parallel. A control panel 10 of the first motors 6 connected to the multiple groups of lead screws 5 is provided on the side of the workbench 1. The material blocking rod 8 is an elastic telescopic rod arranged vertically. By controlling the multiple first motors 6 through the control panel 10, the multiple material blocking rods 8 can be moved to different positions, and bending operations on the sheet metal at different angles and positions can be carried out. The material blocking rod 8 is an elastic telescopic rod, so that even if the sheet metal is completely below the pressing seat 4, the material blocking rod 8 can still play a role in blocking the material and will not be damaged by the pressing seat 4.

[0022] The bending mechanism includes a bending plate 11. The bending plate 11 is hinged to the workbench 1. A fixed plate 12 is provided on the workbench 1 below the bending plate 11. A second hydraulic cylinder 13 is provided on the fixed plate 12. The output end of the second hydraulic cylinder 13 is rotatably connected to a hinge seat 14. The hinge seat 14 is slidably arranged at the bottom of the bending plate 11. When the second hydraulic cylinder 13 extends, the sheet metal fixed under the pressing seat 4 is bent.

[0023] In order to precisely control the angle of sheet metal bending, a sector angle plate 15 is provided at the hinge joint between the workbench 1 and the bending plate 11. The sector angle plate 15 is fixedly connected to the workbench 1, and the sector angle plate 15 is concentric with the hinge axis of the workbench 1 and the bending plate 11. A worm gear 16 is rotatably installed at the center of the sector angle plate 15. The worm gear 16 meshes with a worm 17. One end of the worm 17 is fixedly connected to the output end of a second motor 18. The second motor 18 is fixedly installed on the side of the workbench 1. The sector angle plates 15 are symmetrically arranged on both sides of the workbench 1. A fixing rod 19 is fixedly provided in the radial direction of the worm gear 17. The outer end of the fixing rod 19 is movably arranged in an arc-shaped chute 20 on the sector angle plate 15. Scale lines are provided outside the arc-shaped chute 20. Infrared transmitting and receiving devices are respectively provided between the opposite surfaces of the two fixing rods 19. The second motor 18 drives the infrared transmitting and receiving devices on the fixing rod 19 to rotate through the worm gear 16 and the worm 17. The position of the fixing rod 19 on the sector angle plate 15 is the bending angle of the sheet metal. During the process of bending the sheet metal by the second hydraulic cylinder 13, when the sheet metal just lies between the infrared transmitting and receiving devices, the second hydraulic cylinder 13 stops moving, and this is the required bending angle at this time.

[0024] When the present utility model is in use, a sheet metal part is placed on the workbench 1. By controlling a plurality of first motors 6 through a control panel 10, the plurality of stop rods 8 can be moved to different positions, and bending operations at different angles and positions can be performed on the sheet metal. When bending, the second hydraulic cylinder 13 extends to bend the sheet metal fixed under the pressing seat 4. The second motor 18 drives the infrared transmitting and receiving devices on the fixing rod 19 to rotate through the worm gear 16 and the worm 17. The position of the fixing rod 19 on the sector angle plate 15 is the bending angle of the sheet metal. During the process of bending the sheet metal by the second hydraulic cylinder 13, when the sheet metal just lies between the infrared transmitting and receiving devices, the second hydraulic cylinder 13 stops moving, and this is the required bending angle at this time. The stop mechanism enables the device to bend the sheet metal part at different positions and bevels. The bending mechanism makes the bending more labor-saving and the accuracy of the bending angle higher. It has a wide range of applications, improves work efficiency and processing accuracy, and reduces the burden on workers.

[0025] The above embodiments are only exemplary embodiments of the present utility model and are not used to limit the present utility model. The protection scope of the present utility model is defined by the claims. Those skilled in the art can make various modifications or equivalent replacements to the present utility model within the essence and protection scope of the present utility model, and such modifications or equivalent replacements should also be regarded as falling within the protection scope of the present utility model.

Claims

1. A sheet metal bending machine for preventing displacement, comprising a workbench (1), characterized in that: The workbench (1) is provided with a bracket (2), the bracket (2) is provided with a first hydraulic cylinder (3), the bottom of the first hydraulic cylinder (3) is connected to a clamping seat (4), the workbench (1) below the clamping seat (4) is provided with a material blocking mechanism, the material blocking mechanism comprises a lead screw (5) installed horizontally and rotatably in the workbench (1), one end of the lead screw (5) is fixedly connected to the output end of the first motor (6), a slider (7) is movably installed on the lead screw (5), the top of the slider (7) is fixedly connected to a material blocking rod (8), the material blocking rod (8) is movably arranged in a long groove (9) on the workbench (1), and one end of the workbench (1) is provided with a bending mechanism.

2. A sheet metal bending machine for preventing displacement according to claim 1, characterized in that: The lead screws (5) are arranged in multiple groups in parallel, and a control panel (10) for the first motor (6) connected to the multiple groups of lead screws (5) is provided on the side of the workbench (1).

3. A sheet metal bending machine for preventing displacement according to claim 2, characterized in that: The material blocking rod (8) is a vertically arranged elastic telescopic rod.

4. The sheet metal bending machine for preventing displacement according to claim 1, characterized in that: The bending mechanism comprises a bending plate (11), the bending plate (11) is hinged to a workbench (1), a fixing plate (12) is provided on the workbench (1) below the bending plate (11), a second hydraulic cylinder (13) is provided on the fixing plate (12), an output end of the second hydraulic cylinder (13) is rotatably connected to an articulated seat (14), and the articulated seat (14) is slidably arranged at the bottom of the bending plate (11).

5. The sheet metal bending machine for preventing displacement according to claim 4, characterized in that: A fan-shaped angle plate (15) is provided at the hinge of the workbench (1) and the bending plate (11); the fan-shaped angle plate (15) is fixedly connected to the workbench (1), and the fan-shaped angle plate (15) is coaxially arranged with the hinge axis of the workbench (1) and the bending plate (11); a worm wheel (16) is rotatably installed at the axis of the fan-shaped angle plate (15); the worm wheel (16) is meshed with a worm (17); one end of the worm (17) is fixedly connected to the output end of a second motor (18); and the second motor (18) is fixedly installed on the side of the workbench (1).

6. A sheet metal bending machine for preventing displacement according to claim 5, characterized in that: The fan-shaped angle plate (15) is symmetrically arranged on both sides of the workbench (1), and a fixing rod (19) is fixedly arranged in the radial direction of the worm wheel (16). The outer end of the fixing rod (19) is movably arranged in an arc-shaped slide groove (20) on the fan-shaped angle plate (15), and the arc-shaped slide groove (20) is provided with scale lines outside. Infrared transmitting and receiving devices are respectively arranged between the opposite surfaces of the two fixing rods (19).

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