Bending machine protection device

Abstract

The utility model relates to the technical field of bending machines, and discloses a bending machine protection device which comprises a bending machine body, one end of the bending machine body is fixedly connected with a hollowed-out block, a threaded hole is formed in the top of the hollowed-out block, a threaded rod is rotationally connected into the threaded hole, and the bottom of the threaded rod is fixedly connected with a disc. And moving grooves are formed in the two sides of an inner cavity of the hollow-out block, moving blocks are slidably connected into the moving grooves, and a lower pressing plate is fixedly connected to one side of each moving block. According to the bending machine protection device, a workpiece is placed in the working area of the bending machine body, then the threaded rod is rotated, due to the fact that the threaded rod is in threaded fit with the threaded hole and the bottom of the disc makes close contact with the top of the lower pressing plate, the workpiece is preliminarily positioned and pressed, and then the machine is started to bend the workpiece; therefore, the risk that the hand is injured when a worker holds the workpiece to bend the workpiece can be avoided while the workpiece is positioned.

Description

Technical Field

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

[0002] A bending machine is a machine that can bend thin plates. Its structure mainly includes a bracket, a workbench and a clamping plate. The workbench is placed on the bracket, and the workbench consists of a base and a pressure plate.

[0003] A Chinese patent discloses a bending machine (authorization announcement number CN204307988U). This patented technology can achieve a lightweight overall structure of the machine tool, high transportation and installation safety, and low cost while meeting the same tonnage and width.

[0004] With respect to the above-mentioned and existing related technologies, the inventors believe that the following defects often exist: when existing bending machines bend workpieces, the workpieces are sent into the interior of the bending machine by hand for bending operations, but this method has great safety hazards. On the one hand, when the workpiece is held by hand for bending, the hands of the workers are easy to approach the dangerous areas of the bending machine, such as the blade or the bending mechanism, and there is a risk of being pinched or cut. On the other hand, when the workpiece is held by hand for bending, the positioning accuracy of the workpiece is difficult to guarantee, which may lead to unsatisfactory bending effects and affect product quality. Utility Model Content

[0005] The technical problem to be solved by the utility model is that in the prior art, the existing bending machine is carried out by hand-held workpieces to bend the workpieces, which has safety hazards. The hands are easy to approach the dangerous area, and there is a risk of pinching or cutting. At the same time, the positioning accuracy of the workpiece is difficult to ensure, which affects the bending effect and product quality. For this reason, we propose a bending machine protection device.

[0006] In order to achieve the above-mentioned purpose, the present application adopts the following technical scheme: a bending machine protection device, including a bending machine body, one end of the bending machine body is fixedly connected to a hollow block, the top of the hollow block is provided with a threaded hole, the inside of the threaded hole is rotatably connected to a threaded rod, the bottom of the threaded rod is fixedly connected to a disc, movable grooves are provided on both sides of the inner cavity of the hollow block, the inside of the movable groove is slidably connected to a movable block, one side of the movable block is fixedly connected to a lower pressure plate, the bottom of the disc is abutted against the top of the lower pressure plate, the top of the movable block is fixedly connected to a tension spring, and the top of the tension spring is fixedly connected to the top of the inner cavity of the movable groove.

[0007] Preferably, sliding grooves are provided at both ends of the movable groove, and sliding blocks are fixedly connected at both ends of the movable block.

[0008] Preferably, a notch is provided at the bottom of the inner cavity of the hollow block, and a plurality of rollers are rotatably connected to an internal rotating shaft of the notch.

[0009] Preferably, a plurality of grooves are provided at the bottom of the lower pressing plate.

[0010] Preferably, movable grooves are provided on both sides of the hollow block, two through grooves are provided at one end of the hollow block, a driving rod is slidably connected inside the movable groove, a correction plate is fixedly connected to one side of the driving rod, a connecting rod is slidably connected inside the through groove, one end of the connecting rod is fixedly connected to a U-shaped block, and a rubber pad is fixedly connected to the inner wall of the U-shaped block.

[0011] Preferably, one end of the U-shaped block is fixedly connected to a thrust spring, and one end of the thrust spring is fixedly connected to the inside of the movable groove.

[0012] Technical effects and advantages of the utility model:

[0013] In the utility model, the worker places the workpiece in the working area of ​​the bending machine body and then rotates the threaded rod. Due to the threaded cooperation between the threaded rod and the threaded hole, the rotating threaded rod will drive the disc to move vertically downward, and the bottom of the disc is in close contact with the top of the lower pressure plate. As the disc descends, the lower pressure plate is pushed downward, thereby preliminarily positioning and pressing the workpiece, and then starting the machine to bend the workpiece, thereby achieving the goal of positioning the workpiece while avoiding the risk of hand injury when the worker holds the workpiece for bending.

[0014] In the utility model, when the workpiece passes through the hollow block and enters the interior of the bending machine body, the staff moves the driving rod to make the driving rod drive the correction plate to correct the position of the workpiece, and then moves the connecting rod to make the connecting rod drive the U-shaped block to slide along the through groove until the rubber pad in the U-shaped block fits tightly with the driving rod, so that the workpiece maintains a stable posture during the bending process and reduces the possibility of deviation and deformation. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0016] Figure 2 This is a disassembled diagram of the bending machine and the hollow block of the utility model;

[0017] Figure 3 This is a disassembled diagram of the internal structure of the hollow block of the utility model;

[0018] Figure 4 This is a disassembled diagram of the compression structure of the utility model;

[0019] Figure 5 This is a disassembled diagram of the deviation-correcting structure of the utility model.

[0020] Legend: 1. Bending machine body; 2. Hollow block; 3. Threaded hole; 4. Threaded rod; 5. Disc; 6. Moving groove; 7. Moving block; 8. Lower pressure plate; 9. Tension spring; 10. Slide groove; 11. Slider; 12. Notch; 13. Roller; 14. Textured groove; 15. Movable groove; 16. Through groove; 17. Driving rod; 18. Correction plate; 19. Connecting rod; 20. U-shaped block; 21. Rubber pad; 22. Thrust spring. DETAILED DESCRIPTION

[0021] The present invention will now be further described in detail in conjunction with the accompanying drawings and preferred embodiments. These drawings are simplified schematic diagrams that only illustrate the basic structure of the present invention in a schematic manner, and therefore only show the components related to the present invention.

[0022] Reference Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the utility model provides a technical solution: a bending machine protection device, including a bending machine body 1, one end of the bending machine body 1 is fixedly connected with a hollow block 2, the top of the hollow block 2 is provided with a threaded hole 3, the inside of the threaded hole 3 is rotatably connected with a threaded rod 4, the bottom of the threaded rod 4 is fixedly connected with a disc 5, both sides of the inner cavity of the hollow block 2 are provided with moving grooves 6, the inside of the moving groove 6 is slidably connected with a moving block 7, one side of the moving block 7 is fixedly connected with a lower pressure plate 8, the bottom of the disc 5 is in contact with the top of the lower pressure plate 8, the staff places the workpiece in the working area of ​​the bending machine body 1, and then rotates the threaded rod 4. Due to the threaded cooperation between the threaded rod 4 and the threaded hole 3, the rotating thread The rod 4 will drive the disc 5 to move vertically downward, and the bottom of the disc 5 is in close contact with the top of the lower pressure plate 8. As the disc 5 descends, the lower pressure plate 8 is pushed downward, thereby preliminarily positioning and pressing the workpiece, and then starting the machine to bend the workpiece, thereby achieving the goal of positioning the workpiece while avoiding the risk of hand injuries when the staff holds the workpiece for bending. At the same time, through the ingenious design of the tension spring 9, the moving block 7 can produce a certain elastic deformation when subjected to external force, and then automatically reset through the restoring force of the spring, so that when the disc 5 rises with the threaded rod 4, the tension spring 9 will drive the moving block 7 and the lower pressure plate 8 to quickly reset upward, which is convenient for the staff to operate next time.

[0023] Reference Figure 3 and Figure 4As shown, in the present embodiment: slide grooves 10 are provided at both ends of the movable groove 6, and sliders 11 are fixedly connected at both ends of the movable block 7. This precise matching design between the movable groove 6 and the slider 11 not only ensures the stability and smoothness of the movable block 7 during the movement, but also greatly improves the stability and durability of the overall structure. When the movable block 7 slides along the movable groove 6, the slider 11 is accurately embedded in the slide groove 10, effectively preventing deviation and shaking.

[0024] Reference Figure 3 As shown, in this embodiment: a slot 12 is provided at the bottom of the inner cavity of the hollow block 2, and a plurality of rollers 13 are rotatably connected to the internal rotating shaft of the slot 12. Through the arrangement of the plurality of rollers 13, the workpiece can slide more smoothly and stably when being transferred to the interior of the bending machine body 1 through the hollow block 2.

[0025] Reference Figure 4 As shown, in this embodiment: a plurality of grooves 14 are provided at the bottom of the lower pressing plate 8. The presence of the grooves 14 greatly increases the roughness of the contact surface, so that the friction between the lower pressing plate 8 and the contact object is significantly increased, thereby effectively preventing the occurrence of sliding or deviation.

[0026] Reference Figure 2 and Figure 5 As shown, in this embodiment: movable grooves 15 are provided on both sides of the hollow block 2, and two through grooves 16 are provided at one end of the hollow block 2. A driving rod 17 is slidably connected inside the movable groove 15, and a correction plate 18 is fixedly connected to one side of the driving rod 17. A connecting rod 19 is slidably connected inside the through groove 16, and one end of the connecting rod 19 is fixedly connected to a U-shaped block 20. A rubber pad 21 is fixedly connected to the inner wall of the U-shaped block 20. When the workpiece passes through the hollow block 2 and enters the interior of the bending machine body 1, the staff moves the driving rod 17 so that the driving rod 17 drives the correction plate 18 to correct the position of the workpiece, and then moves the connecting rod 19 so that the connecting rod 19 drives the U-shaped block 20 to slide along the through groove 16 until the rubber pad 21 in the U-shaped block 20 is tightly fitted with the driving rod 17, so that the workpiece maintains a stable posture during the bending process and reduces the possibility of deviation and deformation.

[0027] Reference Figure 5 As shown, in this embodiment: one end of the U-shaped block 20 is fixedly connected to a thrust spring 22, and one end of the thrust spring 22 is fixedly connected to the inside of the movable groove 15. When the staff pulls the connecting rod 19 outward, the thrust spring 22 will start to accumulate force. When the staff releases the connecting rod 19, the thrust spring 22 will quickly push the U-shaped block 20 to return to its original position through its own elastic force.

[0028] Working principle: The staff places the workpiece in the working area of ​​the bending machine body 1, and then rotates the threaded rod 4. Due to the threaded cooperation between the threaded rod 4 and the threaded hole 3, the rotating threaded rod 4 will drive the disc 5 to move vertically downward, and the bottom of the disc 5 is in close contact with the top of the lower pressure plate 8. As the disc 5 descends, the lower pressure plate 8 is pushed downward, thereby preliminarily positioning and pressing the workpiece, and then starting the machine to bend the workpiece, thereby achieving the positioning of the workpiece while avoiding the risk of hand injury when the staff holds the workpiece for bending. Through the ingenious design of the tension spring 9, the moving block 7 can produce a certain elastic deformation when subjected to external force, and then automatically reset through the restoring force of the spring, so that when the disc 5 rises with the threaded rod 4, the tension spring 9 will drive the moving block 7 and the lower pressure plate 8 to quickly reset upward, which is convenient for the staff to operate next time. This precise matching design between the moving groove 6 and the slider 11 not only ensures the stability and smoothness of the moving block 7 during the movement process, but also greatly improves the stability and durability of the overall structure. When sliding along the movable groove 6, the slider 11 is precisely embedded in the slide groove 10, effectively preventing deviation and shaking. Through the arrangement of multiple rollers 13, the workpiece can slide more smoothly and steadily when it is transferred to the inside of the bending machine body 1 through the hollow block 2. The existence of the groove 14 greatly increases the roughness of the contact surface, which significantly increases the friction between the lower pressure plate 8 and the contact object, thereby effectively preventing the occurrence of sliding or deviation. When the workpiece passes through the hollow block 2 and enters the inside of the bending machine body 1, the staff moves the driving rod 17 , so that the driving rod 17 drives the correcting plate 18 to correct the position of the workpiece, and then by moving the connecting rod 19, the connecting rod 19 drives the U-shaped block 20 to slide along the through groove 16 until the rubber pad 21 in the U-shaped block 20 is tightly fitted with the driving rod 17, so that the workpiece maintains a stable posture during the bending process, reducing the possibility of deviation and deformation. When the staff pulls the connecting rod 19 outward, the thrust spring 22 will start to accumulate force. When the staff releases the connecting rod 19, the thrust spring 22 will quickly push the U-shaped block 20 to reset through its own elastic force.

[0029] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A protective device for a bending machine, comprising a bending machine body (1), characterized in that: One end of the bending machine body (1) is fixedly connected to a hollow block (2), a threaded hole (3) is provided at the top of the hollow block (2), a threaded rod (4) is rotatably connected inside the threaded hole (3), a disc (5) is fixedly connected to the bottom of the threaded rod (4), movable grooves (6) are provided on both sides of the inner cavity of the hollow block (2), a movable block (7) is slidably connected inside the movable groove (6), a lower pressure plate (8) is fixedly connected to one side of the movable block (7), the bottom of the disc (5) is in contact with the top of the lower pressure plate (8), a tension spring (9) is fixedly connected to the top of the inner cavity of the movable groove (6), and the top of the tension spring (9) is fixedly connected to the top of the inner cavity of the movable groove (6).

2. A bending machine protection device according to claim 1, characterized in that: Slide grooves (10) are provided at both ends of the movable groove (6), and sliding blocks (11) are fixedly connected at both ends of the movable block (7).

3. A bending machine protection device according to claim 1, characterized in that: A notch (12) is provided at the bottom of the inner cavity of the hollow block (2), and a plurality of rollers (13) are rotatably connected to the internal rotating shaft of the notch (12).

4. A bending machine protection device according to claim 1, characterized in that: A plurality of grooves (14) are provided at the bottom of the lower pressing plate (8).

5. A bending machine protection device according to claim 1, characterized in that: Both sides of the hollow block (2) are provided with movable grooves (15), one end of the hollow block (2) is provided with two through grooves (16), the movable groove (15) is slidably connected to a driving rod (17), one side of the driving rod (17) is fixedly connected to a deviation correction plate (18), the through groove (16) is slidably connected to a connecting rod (19), one end of the connecting rod (19) is fixedly connected to a U-shaped block (20), and the inner wall of the U-shaped block (20) is fixedly connected to a rubber pad (21).

6. A bending machine protection device according to claim 5, characterized in that: One end of the U-shaped block (20) is fixedly connected to a thrust spring (22), and one end of the thrust spring (22) is fixedly connected to the inside of the movable groove (15).

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