Sheet metal clamping device for sheet metal bending machine

Abstract

The utility model discloses a sheet metal clamping device for a sheet metal bending machine, and relates to the technical field of bending machines. The sheet metal clamping device comprises a workbench, C-shaped clamping plates are oppositely arranged on the two sides of the workbench, a plurality of sets of clamping rollers are vertically and rotatably arranged in the C-shaped clamping plates, and a plurality of sets of first hydraulic cylinders are arranged on the upper portions of the C-shaped clamping plates; the output end of the bottom of the first hydraulic cylinder is fixedly connected with a material pressing plate, a long groove is formed in the middle of the workbench, a rotating disc is movably installed in the long groove, a plurality of air suction ports are formed in the rotating disc, and a driving assembly is arranged at the bottom of the rotating disc. According to the design scheme, the clamping rollers abut against the two sides of a sheet metal part, the sheet metal part is pressed through the material pressing plate, the clamping effect is enhanced, the first motor drives the sheet metal part on the rotary disc to move, the second motor drives the sheet metal part on the rotary disc to rotate, all the side edges of the sheet metal part can be machined conveniently, manual operation is not needed, and the machining efficiency is improved. And the working efficiency and the machining accuracy are improved, and the practicability is high.

Description

Technical Field

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

[0002] A sheet metal bending machine is a device used for bending thin sheet metals and plays a very important role in the manufacturing industry. The sheet metal clamping device of a sheet metal bending machine is a key component, and its function is to ensure that the workpiece maintains a stable position and posture during the bending process to ensure the accuracy and quality of processing.

[0003] The authorized announcement number CN220461977U discloses a sheet metal clamping device for a sheet metal bending machine, which includes a workbench. Two movable clamping plates are symmetrically arranged on the workbench, and a detachable backing plate is provided. A driving mechanism is arranged at the bottom of the workbench, and the clamping plates can be moved through the driving mechanism. A plurality of mounting holes for mounting the lower die are formed on the workbench. Two convex plates are fixedly connected to the bottom of the workbench. Four strip-shaped holes are formed on the workbench. The device can clamp the sheet metal part and press downward on the edge of the sheet metal part to prevent the edge from warping.

[0004] When the above device is in use, after each bending is completed, it is necessary to loosen the clamping of the sheet metal part, and the staff manually adjusts the position of the sheet metal part. After clamping again, the sheet metal part can be bent. The working efficiency is low, and the sheet metal part is prone to inaccurate positioning problems during multiple adjustments, resulting in a decline in product quality. 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 clamping device for a sheet metal bending machine.

[0006] The technical solution adopted by the utility model to solve its technical problems is: a sheet metal clamping device for a sheet metal bending machine, which includes a workbench. C-shaped clamping plates are oppositely arranged on both sides of the workbench. A plurality of groups of clamping rollers are vertically rotatably arranged in the C-shaped clamping plates. A plurality of groups of first hydraulic cylinders are arranged on the upper part of the C-shaped clamping plates. The bottom output end of the first hydraulic cylinder is fixedly connected to a pressure plate. A long groove is arranged in the middle of the workbench. A turntable is movably installed in the long groove. A plurality of air suction ports are arranged on the turntable. A driving component is arranged at the bottom of the turntable.

[0007] Furthermore, the C-shaped clamping plates are slidably connected to the paired transverse grooves on the workbench. A second hydraulic cylinder is fixedly arranged at the bottom of the workbench. The second hydraulic cylinder corresponds to the transverse grooves. The output end of the second hydraulic cylinder is fixedly connected to a connecting plate. The connecting plate is fixedly connected to the C-shaped clamping plates through the transverse grooves.

[0008] Furthermore, a rubber gasket is provided at the bottom of the pressing plate, and the pressing plate is arranged on the inner side of the clamping roller.

[0009] Furthermore, the driving assembly includes a first motor, which is fixedly installed at the bottom of the workbench, and the output end of the first motor is fixedly connected to one end of a lead screw, the lead screw is arranged parallel to the long slot and is rotatably installed on the lower surface of the workbench, a slider is movably installed on the lead screw, a connecting seat is fixedly arranged on the slider, a rotating shaft is rotatably installed on the connecting seat, and the top of the rotating shaft is fixedly connected to the axis center of the turntable.

[0010] Furthermore, a worm wheel is rotatably installed in the connecting seat, the bottom of the rotating shaft is fixedly connected to the axis of the worm wheel, the worm wheel and the worm are installed in cooperation, one end of the worm is fixedly connected to the output end of the second motor, and the second motor is fixedly installed on the connecting seat.

[0011] The beneficial effect of the utility model is that the design scheme of the utility model contacts the two sides of the sheet metal part through multiple groups of relatively arranged clamping rollers, and the first hydraulic cylinder extends to drive the pressure plate to press the sheet metal part, thereby enhancing the clamping effect; when the sheet metal part completes one bending, the pressure plate is detached from the sheet metal part, and the first motor drives the sheet metal part on the turntable to move, and then the pressure plate presses the sheet metal part again; the second motor drives the sheet metal part on the turntable to rotate through the worm gear and the worm, and then the clamping roller and the pressure plate clamp the sheet metal part, which is convenient for processing all sides of the sheet metal part, does not require manual operation, improves work efficiency and processing accuracy, and has strong practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0013] Figure 1 It is a top view of the utility model;

[0014] Figure 2 It is the front view of the utility model;

[0015] Figure 3 It is a bottom view of the utility model;

[0016] Figure 4 It is a structural schematic diagram of the connection seat of the utility model.

[0017] In the figure, 1. workbench, 2. C-type clamping plate, 3. clamping roller, 4. first hydraulic cylinder, 5. pressing plate, 6. long groove, 7. turntable, 8. suction port, 9. transverse groove, 10. second hydraulic cylinder, 11. connecting plate, 12. first motor, 13. lead screw, 14. slider, 15. connecting seat, 16. rotating shaft, 17. worm gear, 18. worm, 19. second motor. DETAILED DESCRIPTION

[0018] To more clearly illustrate the technical solution of the present utility model, the following further describes the present utility model in conjunction with 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 based on this drawing and embodiment all fall within the protection scope of the present utility model.

[0019] As Figures 1 to 4 shown, a sheet metal clamping device for a sheet metal bending machine includes a workbench 1. On both sides of the workbench 1, C-shaped clamping plates 2 are oppositely arranged. A plurality of clamping rollers 3 are vertically rotatably arranged in the C-shaped clamping plates 2. A plurality of first hydraulic cylinders 4 are arranged on the upper part of the C-shaped clamping plates 2. The bottom output end of the first hydraulic cylinder 4 is fixedly connected to a pressure plate 5. A long groove 6 is arranged in the middle of the workbench 1. A turntable 7 is movably installed in the long groove 6. A plurality of air suction ports 8 are arranged on the turntable 7. A driving assembly is arranged at the bottom of the turntable 7.

[0020] As Figure 1 and Figure 2 shown, the C-shaped clamping plates 2 are slidably connected to the paired transverse grooves 9 on the workbench 1. A second hydraulic cylinder 10 is fixedly arranged at the bottom of the workbench 1. The second hydraulic cylinder 10 corresponds to the transverse groove 9. The output end of the second hydraulic cylinder 10 is fixedly connected to a connecting plate 11. The connecting plate 11 is fixedly connected to the C-shaped clamping plate 2 through the transverse groove 9. A rubber gasket is arranged at the bottom of the pressure plate 5. The pressure plate 5 is arranged inside the clamping rollers 3. When a plurality of second hydraulic cylinders 10 extend, the connecting plate 11 is pushed to drive the C-shaped clamping plates 2 to move towards each other. The oppositely arranged clamping rollers 3 abut against both sides of the sheet metal part. Subsequently, the first hydraulic cylinder 4 extends, and the pressure plate 5 compresses the sheet metal part to enhance the clamping effect.

[0021] As Figure 3 and Figure 4As shown in the figure, the driving component includes a first motor 12, which is fixedly installed at the bottom of the workbench 1. The output end of the first motor 12 is fixedly connected to one end of a lead screw 13. The lead screw 13 is arranged parallel to the long groove 6 and is rotatably installed on the lower surface of the workbench 1. A slider 14 is movably installed on the lead screw 13. A connecting seat 15 is fixedly arranged on the slider 14. A rotating shaft 16 is rotatably installed on the connecting seat 15. The top of the rotating shaft 16 is fixedly connected to the center of the turntable 7. A worm gear 17 is rotatably installed in the connecting seat 15. The bottom of the rotating shaft 16 is fixedly connected to the center of the worm gear 17. The worm gear 17 is installed in cooperation with a worm 18. One end of the worm 18 is fixedly connected to the output end of a second motor 19. The second motor 19 is fixedly installed on the connecting seat 15. Multiple suction ports 8 on the turntable 7 suck and fix the sheet metal part. When the sheet metal part completes one bending, the first hydraulic cylinder 4 shortens, causing the pressure plate 5 to disengage from the sheet metal part. The first motor 12 drives the slider 14 to move through the lead screw 13. The slider 14 drives the sheet metal part to accurately move a set distance through the connecting seat 15 and the turntable 7. The sheet metal part makes rolling contact with the clamping rollers 3. After the movement is completed, the first hydraulic cylinder 4 extends, and the pressure plate 5 presses the sheet metal part again. When it is necessary to bend the remaining sides of the sheet metal part, the first hydraulic cylinder 4 and the second hydraulic cylinder 10 shorten. The second motor 19 drives the sheet metal part on the turntable 7 to rotate a certain angle through the worm gear 17 and the worm 18. Then the first hydraulic cylinder 4 and the second hydraulic cylinder 10 extend. The clamping rollers 3 contact the edge of the sheet metal part, and the pressure plate 5 presses the sheet metal part. No manual operation is required, improving the work efficiency and the accuracy of processing.

[0022] When the present utility model is in use, multiple second hydraulic cylinders 10 extend, pushing the connecting plate 11 to drive the C-shaped clamping plates 2 to move towards each other. The oppositely arranged clamping rollers 3 abut against both sides of the sheet metal part. Then the first hydraulic cylinder 4 extends, and the pressure plate 5 presses the sheet metal part to enhance the clamping effect. When the sheet metal part completes one bending, the first hydraulic cylinder 4 shortens, causing the pressure plate 5 to disengage from the sheet metal part. The first motor 12 drives the slider 14, the connecting seat 15 and the turntable 7 to move through the lead screw 13. After the movement is completed, the first hydraulic cylinder 4 extends, and the pressure plate 5 presses the sheet metal part again. When it is necessary to bend the remaining sides of the sheet metal part, the first hydraulic cylinder 4 and the second hydraulic cylinder 10 shorten. The second motor 19 drives the sheet metal part on the turntable 7 to rotate a certain angle through the worm gear 17 and the worm 18. Then the first hydraulic cylinder 4 and the second hydraulic cylinder 10 extend. The clamping rollers 3 contact the edge of the sheet metal part, and the pressure plate 5 presses the sheet metal part. No manual operation is required, improving the work efficiency and the accuracy of processing, and it has strong practicability.

[0023] 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 clamping device for a sheet metal bending machine, comprising a workbench (1), characterized in that: C-shaped clamping plates (2) are arranged opposite to each other on both sides of the workbench (1), and a plurality of groups of clamping rollers (3) are arranged in a vertically rotatable manner in the C-shaped clamping plates (2). A plurality of groups of first hydraulic cylinders (4) are arranged on the upper part of the C-shaped clamping plates (2), and the bottom output ends of the first hydraulic cylinders (4) are fixedly connected to a pressing plate (5). A long groove (6) is arranged in the middle of the workbench (1), and a turntable (7) is movably installed in the long groove (6). A plurality of air inlets (8) are arranged on the turntable (7), and a driving component is arranged at the bottom of the turntable (7).

2. The sheet metal clamping device for a sheet metal bending machine according to claim 1, characterized in that: The C-shaped clamping plate (2) is slidably connected to the paired transverse grooves (9) on the workbench (1); a second hydraulic cylinder (10) is fixedly arranged at the bottom of the workbench (1); the second hydraulic cylinder (10) is arranged corresponding to the transverse groove (9); the output end of the second hydraulic cylinder (10) is fixedly connected to the connecting plate (11); and the connecting plate (11) is fixedly connected to the C-shaped clamping plate (2) via the transverse groove (9).

3. The sheet metal clamping device for a sheet metal bending machine according to claim 2, characterized in that: A rubber gasket is provided at the bottom of the pressing plate (5), and the pressing plate (5) is arranged on the inner side of the clamping roller (3).

4. The sheet metal clamping device for a sheet metal bending machine according to claim 1, characterized in that: The driving assembly comprises a first motor (12), the first motor (12) is fixedly mounted on the bottom of the workbench (1), the output end of the first motor (12) is fixedly connected to one end of a lead screw (13), the lead screw (13) is arranged parallel to the long slot (6) and the lead screw (13) is rotatably mounted on the lower surface of the workbench (1), a slider (14) is movably mounted on the lead screw (13), a connecting seat (15) is fixedly arranged on the slider (14), a rotating shaft (16) is rotatably mounted on the connecting seat (15), and the top of the rotating shaft (16) is fixedly connected to the axis center of the turntable (7).

5. The sheet metal clamping device for a sheet metal bending machine according to claim 4, characterized in that: A worm wheel (17) is rotatably mounted in the connection seat (15); the bottom of the rotating shaft (16) is fixedly connected to the axis of the worm wheel (17); the worm wheel (17) is mounted in cooperation with a worm (18); one end of the worm (18) is fixedly connected to the output end of a second motor (19); and the second motor (19) is fixedly mounted on the connection seat (15).

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