Protective device for bending machine

Abstract

The utility model discloses a protective device for a bending machine, and relates to the field of bending machines. The device comprises a supporting table top and a workpiece, an abutting plate is arranged above the supporting table top, a protection mechanism is installed below the abutting plate, the protection mechanism comprises two sets of guide frames, an installation plate is fixed to one side of each guide frame and movably connected with the abutting plate, the two sets of guide frames are of a mirror symmetry structure, and the two sets of guide frames are arranged on the supporting table top. Through the protection mechanism, when the abutting part abuts against the workpiece in a limiting mode, the first electric push rod drives the abutting plate to drive the workpiece to rotate by a synchronous angle through the protection mechanism, and in the process, the distance between the workpiece and the supporting table top and the position where the hand of an operator can make contact with the workpiece are gradually increased; the distance between the workpiece and the abutting plate is fixed through the guiding and limiting functions of the guiding frame, the hands of an operator are effectively prevented from entering the gap by mistake, the risk that the hands of the operator are injured in the bending process is directly eradicated, and the use safety is remarkably improved.

Description

Technical Field

[0001] This utility model relates to the field of bending machines, specifically a protective device for bending machines. Background Technology

[0002] A bending machine, also known as a plate bending machine, is a mechanical device used to bend metal sheets. It drives the relative movement of the mold through a hydraulic system or mechanical transmission system to achieve the bending and shaping of the sheet. There are various types of bending machines, including manual, hydraulic and CNC, each with its own characteristics, suitable for processing needs of different scales and precision.

[0003] Traditional plate bending machines require manual placement of unbent plates onto the machine, followed by limiting and pressing the plates while the bending mechanism performs the bending operation. However, a problem exists in actual use: placing the plates between the clamping part and the operating table poses a safety hazard as the operator's hands may be placed in the gap between the plates and the clamping part. Utility Model Content

[0004] Based on this, the purpose of this utility model is to provide a protective device for a bending machine to solve the technical problem that there is a risk of operators accidentally placing their hands in the gap between the plate and the clamping part when placing the plate between the clamping part and the operating table.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a protective device for a bending machine, comprising a support table and a workpiece, a pressure plate being provided above the support table, and a protective mechanism being installed below the pressure plate, the protective mechanism comprising two sets of guide frames, an mounting plate being fixed to one side of each guide frame, the mounting plate being movably connected to the pressure plate, the two sets of guide frames having a mirror symmetrical structure for limiting the workpiece.

[0006] By adopting the above technical solution, the two sets of guide frames with mirror-symmetrical structure provide precise limiting function for the workpiece, ensuring the stability and accuracy of the workpiece during the bending process, and effectively preventing bending errors caused by workpiece movement or offset. At the same time, the movable connection between the guide frame and the pressure plate allows the device to adapt to workpieces of different widths, improving the versatility and flexibility of the device.

[0007] Furthermore, the guide frame has an "L" shaped cross-section, and a guide ramp is provided at the end of the guide frame to guide the workpiece to the inside of the guide frame.

[0008] By adopting the above technical solution, not only is the structural strength of the guide frame enhanced, but it also provides good guiding performance. The guide ramp set at the end can guide the workpiece smoothly into the inner side of the guide frame, reducing the resistance and friction of the workpiece during placement and improving operating efficiency.

[0009] Furthermore, the mounting plate is slidably connected to the pressure plate and fastened by mounting bolts to accommodate the workpiece width.

[0010] By adopting the above technical solution, the protective mechanism can be adjusted according to different workpiece widths, improving the adaptability and flexibility of the device. The tight connection of the mounting bolts ensures the stability and reliability of the protective mechanism after adjustment, preventing bending errors caused by loosening or shaking.

[0011] Furthermore, the inner side of the guide frame is provided with several rollers, which are arranged linearly at equal intervals. The rollers are damping rubber rollers.

[0012] By adopting the above technical solution, good support and rolling performance are provided for the workpiece during the bending process, reducing friction and resistance between the workpiece and the guide frame, and reducing the risk of wear and scratches on the workpiece surface.

[0013] Furthermore, the support platform is supported by two side support plates and the ground. A first electric actuator and a second electric actuator are rotatably mounted on one side of the support side plate. Both the first electric actuator and the second electric actuator are electrically connected to an external power source through a controller.

[0014] By adopting the above technical solutions, the first and second electric actuators have achieved automated and intelligent control of the device, which not only improves operating efficiency and accuracy, but also reduces the labor intensity and safety risks of operators.

[0015] Furthermore, one side of the pressure plate is rotatably connected to the support side plate, the telescopic end of the first electric actuator is rotatably connected to one side of the pressure plate, and a bending plate is rotatably installed on one side between the two support side plates. One side of the bending plate is drively connected to the telescopic end of the second electric actuator.

[0016] By adopting the above technical solution, the pressure plate can be flexibly adjusted in angle and position according to different bending requirements. The telescopic end of the first electric push rod is rotatably connected to one side of the pressure plate, realizing the automated lifting and lowering control of the pressure plate and improving operating efficiency and accuracy.

[0017] Furthermore, a pressing part is detachably installed on the side of the pressing plate near the bending plate, and the pressing part is positioned opposite to the bending plate.

[0018] By adopting the above technical solution, the pressing part can be replaced and adjusted according to different workpiece shapes and sizes, which improves the adaptability and flexibility of the device. The pressing part is positioned opposite to the bending plate, which ensures the stability and accuracy of the workpiece during the bending process.

[0019] In summary, the present invention has the following main advantages:

[0020] 1. This utility model uses a protective mechanism to limit and press the workpiece when the pressing part limits and presses it. The first electric push rod drives the pressing plate to rotate the workpiece synchronously through the protective mechanism. During this process, the distance between the workpiece and the support table and the contact position of the operator's hand gradually increase. The guiding and limiting function of the guide frame fixes the distance between the workpiece and the pressing plate, effectively preventing the operator's hand from accidentally entering the gap, thereby directly eliminating the risk of injury to the operator's hand during bending and significantly improving the safety of use.

[0021] 2. This utility model uses a protective mechanism to place the workpiece between two sets of guide frames and insert it into the guide groove, providing precise guidance for the workpiece. The "L"-shaped structure of the guide frame and the guide inclined plate at the end work together to ensure that the workpiece can remain stable during placement and bending, reducing processing errors caused by offset or shaking. This guiding mechanism not only improves the processing accuracy of the workpiece, but also makes the operation process smoother and reduces the difficulty of operation. Attached Figure Description

[0022] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0023] Figure 2 This is a schematic diagram of the protective mechanism structure of this utility model;

[0024] Figure 3 This is a side sectional view of the present invention.

[0025] Figure 4 This utility model Figure 3 A magnified structural diagram of point A in the middle.

[0026] In the diagram: 1. Supporting platform; 2. Supporting side plate; 3. Pressure plate; 4. Bending plate; 5. Protective mechanism; 501. Guide frame; 502. Mounting plate; 503. Guide inclined plate; 504. Mounting bolt; 505. Roller; 6. Workpiece; 7. Pressure part; 801. First electric actuator; 802. Second electric actuator. Detailed Implementation

[0027] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0028] In this embodiment:

[0029] A protective device for a bending machine, such as Figure 1-4 As shown, the device includes a support platform 1 and a workpiece 6. A pressure plate 3 is installed above the support platform 1, and a protective mechanism 5 is installed below the pressure plate 3. The protective mechanism 5 includes two sets of guide frames 501. A mounting plate 502 is fixed to one side of the guide frame 501. The mounting plate 502 is movably connected to the pressure plate 3. The two sets of guide frames 501 have a mirror-symmetrical structure and are used to limit the workpiece 6. The two sets of guide frames 501 with a mirror-symmetrical structure provide a precise limiting function for the workpiece 6, ensuring the stability and accuracy of the workpiece 6 during the bending process, and effectively preventing bending errors caused by the movement or offset of the workpiece 6. At the same time, the movable connection between the guide frame 501 and the pressure plate 3 allows the device to adapt to workpieces 6 of different widths, improving the versatility and flexibility of the device. In addition, the presence of the protective mechanism 5 also enhances the safety during operation and reduces the risk of injury to operators due to accidental contact or accidental movement of the workpiece 6.

[0030] See Figure 2 The guide frame 501 has an "L" shaped cross-section. A guide ramp 503 is provided at the end of the guide frame 501 to guide the workpiece 6 to the inside of the guide frame 501. This not only enhances the structural strength of the guide frame 501, but also provides it with good guiding performance. The guide ramp 503 at the end can guide the workpiece 6 smoothly into the inside of the guide frame 501, reducing the resistance and friction of the workpiece 6 during placement and improving operating efficiency. At the same time, it also ensures the stability and accuracy of the workpiece 6 during bending, avoiding bending defects caused by the workpiece 6 shifting or shaking.

[0031] See Figure 1 , Figure 4 The mounting plate 502 is slidably connected to the pressure plate 3 and is fastened by the mounting bolts 504 to adapt to the width of the workpiece 6. This allows the protective mechanism 5 to be adjusted according to different widths of the workpiece 6, improving the adaptability and flexibility of the device. The fastening of the mounting bolts 504 ensures the stability and reliability of the protective mechanism 5 after adjustment, preventing bending errors caused by loosening or shaking. At the same time, it also makes the maintenance and replacement of the device more convenient, reducing maintenance costs and downtime.

[0032] See Figure 2 , Figure 4The inner side of the guide frame 501 is provided with several rollers 505, which are arranged linearly at equal intervals. The rollers 505 are damping rubber rollers, which provide good support and rolling performance for the workpiece 6 during the bending process, reduce the friction and resistance between the workpiece 6 and the guide frame 501, and reduce the risk of wear and scratches on the surface of the workpiece 6. At the same time, the rolling performance of the damping rubber rollers 505 also makes the workpiece 6 more smooth and stable during the bending process, improving the bending quality and efficiency.

[0033] See Figure 1 The support platform 1 is supported by two side support plates 2 on both sides and the ground. A first electric actuator 801 and a second electric actuator 802 are rotatably installed on one side of the support plate 2. Both the first electric actuator 801 and the second electric actuator 802 are electrically connected to an external power source through a controller. The first electric actuator 801 and the second electric actuator 802 realize the automated and intelligent control of the device, which not only improves the operating efficiency and accuracy, but also reduces the labor intensity and safety risks of the operators. At the same time, the rotatable installation of the electric actuators also allows the pressure plate 3 and the bending plate 4 to flexibly adjust their angles and positions to adapt to the bending requirements of workpieces 6 of different shapes and sizes.

[0034] See Figure 1 , Figure 3 One side of the pressure plate 3 is rotatably connected to the support side plate 2. The telescopic end of the first electric push rod 801 is rotatably connected to one side of the pressure plate 3. A bending plate 4 is rotatably installed on one side between the two support side plates 2. One side of the bending plate 4 is drivenly connected to the telescopic end of the second electric push rod 802, so that the pressure plate 3 can flexibly adjust its angle and position according to different bending requirements. The telescopic end of the first electric push rod 801 is rotatably connected to one side of the pressure plate 3, realizing the automatic lifting control of the pressure plate 3, improving the operating efficiency and accuracy. At the same time, the bending plate 4 rotatably installed on one side between the two support side plates 2, with one side of its drive-connected to the telescopic end of the second electric push rod 802, realizes the automatic flipping control of the bending plate 4, further improving the bending quality and efficiency.

[0035] See Figure 1 , Figure 3 The pressure plate 3 has a detachable pressure part 7 installed on the side near the bending plate 4. The pressure part 7 is positioned opposite the bending plate 4, which allows the pressure part 7 to be replaced and adjusted according to different workpieces 6 shapes and sizes, improving the adaptability and flexibility of the device. The opposing position of the pressure part 7 and the bending plate 4 ensures the stability and accuracy of the workpiece 6 during the bending process. At the same time, the detachable installation also makes the maintenance and replacement of the pressure part 7 more convenient, reducing maintenance costs and downtime.

[0036] The implementation principle of this embodiment is as follows: The support platform 1 is supported by two side support plates 2. A pressure plate 3 is set above the support platform 1, and a protective mechanism 5 is installed below the pressure plate 3. First, the workpiece 6 is placed between two sets of guide frames 501 and inserted into the guide groove formed between the two sets of guide frames 501 to provide effective guiding performance for the workpiece 6 until the bending position of the workpiece 6 is moved to be opposite to the pressure part 7. Then, the first electric push rod 801 and the second electric push rod 802 are rotatably installed on one side of the support side plate 2. The first electric push rod 801 extends and retracts, causing the pressure plate 3 to rotate at an angle, thereby realizing the lifting and lowering of the pressure part 7. At the same time, the bending plate 4 is rotated and retracted by the second electric push rod 802 to perform a flipping operation, thereby realizing the bending operation of the workpiece 6.

[0037] During the process of the pressure part 7 limiting and pressing the workpiece 6, the first electric push rod 801 drives the pressure plate 3 to drive the workpiece 6 to rotate synchronously through the protective mechanism 5. During this process, the distance between the workpiece 6 and the support table 1, as well as the distance that the operator's hand can touch, gradually increases. Due to the guidance and limitation of the guide frame 501, the distance between the workpiece 6 and the pressure plate 3 is fixed, and the operator cannot place their hand in the gap. In this way, the risk of injury to the operator's hand during the bending process can be directly eliminated, and the safety of use is improved.

[0038] Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the present invention and are not intended to limit the invention. The specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions, and variations to the embodiments as needed without departing from the principles and spirit of the present invention, provided that such modifications, substitutions, and variations are within the scope of the claims of the present invention and are protected by patent law.

Claims

1. A protective device for a bending machine, characterized in that: The device includes a support platform (1) and a workpiece (6). A pressure plate (3) is provided above the support platform (1), and a protective mechanism (5) is installed below the pressure plate (3). The protective mechanism (5) includes two sets of guide frames (501). A mounting plate (502) is fixed on one side of the guide frame (501). The mounting plate (502) is movably connected to the pressure plate (3). The two sets of guide frames (501) have a mirror symmetrical structure and are used to limit the workpiece (6).

2. The protective device for a bending machine according to claim 1, characterized in that: The cross-section of the guide frame (501) is "L" shaped, and the end of the guide frame (501) is provided with a guide ramp (503) to guide the workpiece (6) to the inside of the guide frame (501).

3. The protective device for a bending machine according to claim 1, characterized in that: The mounting plate (502) is slidably connected to the pressure plate (3) and fastened by mounting bolts (504) to accommodate the width of the workpiece (6).

4. The protective device for a bending machine according to claim 1, characterized in that: The inner side of the guide frame (501) is provided with a plurality of rollers (505), which are arranged linearly at equal intervals. The rollers (505) are damping rubber rollers.

5. The protective device for a bending machine according to claim 1, characterized in that: The support platform (1) is supported by two side support plates (2) and the ground. A first electric actuator (801) and a second electric actuator (802) are rotatably installed on one side of the support plate (2). The first electric actuator (801) and the second electric actuator (802) are both electrically connected to an external power source through a controller.

6. The protective device for a bending machine according to claim 5, characterized in that: One side of the pressure plate (3) is rotatably connected to the support side plate (2), the telescopic end of the first electric push rod (801) is rotatably connected to one side of the pressure plate (3), and a bending plate (4) is rotatably installed on one side between the two support side plates (2), and one side of the bending plate (4) is connected to the telescopic end of the second electric push rod (802).

7. The protective device for a bending machine according to claim 6, characterized in that: The pressure plate (3) has a detachable pressure part (7) on the side near the bending plate (4), and the pressure part (7) is opposite to the bending plate (4).

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