Overload protection device for forging and pressing punch

Abstract

The utility model relates to the technical field of forging and pressing machining, in particular to a forging and pressing punch overload protection device which comprises a base, a protection plate is fixed to the base through bolts, a hydraulic cylinder is fixedly installed on the base, the output end of the hydraulic cylinder is fixedly connected with an installation plate, and a forging and pressing punch is fixedly installed on the installation plate. And a protection mechanism for performing overload protection on the forging and pressing punch is arranged between the protection plate and the mounting plate. The protective plate and the base are fixed through the bolts, so that the protective plate can be detached, the guide sliding block can directly slide out of the guide long groove due to the fact that the two ends of the guide long groove are open, and compared with overload protection through fluid in the prior art, overload protection is achieved through a mechanical structure, and the overload protection effect is good. According to the overload protection device, a worker only needs to disassemble the bolt and the sliding block, the overload protection device can be disassembled and assembled, and the working efficiency of the worker can be improved.

Description

Technical Field

[0001] This utility model relates to the field of forging processing technology, and in particular to an overload protection device for forging punches. Background Technology

[0002] Forging is a general term for forging and stamping. It is a forming process that uses the hammer, anvil, punch, or die of forging machinery to apply pressure to the blank, causing it to undergo plastic deformation, thereby obtaining the part of the required shape and size. The punch refers to the metal part on the stamping die in machine tools. It is installed on the stamping die to perform continuous punching, stamping and cutting operations, causing the processed material to separate or undergo plastic deformation, thereby obtaining the required finished or semi-finished product.

[0003] Existing forging presses require overload protection devices to protect the forging punches during operation, preventing excessive loads that could reduce their lifespan. However, most existing overload protection devices are installed within the forging press itself, requiring operators to remove them before adjustments. Furthermore, since most current technologies rely on fluid for overload protection, disassembly and replacement are extremely inconvenient, impacting work efficiency. Utility Model Content

[0004] The purpose of this utility model is to solve the problem of the extreme inconvenience for workers when disassembling and replacing overload protection devices in the prior art, and to propose an overload protection device for forging punches.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] An overload protection device for a forging punch includes a base, a protective plate bolted to the base, a hydraulic cylinder fixedly mounted on the base, an output end of the hydraulic cylinder fixedly connected to an mounting plate, and a forging punch fixedly mounted on the mounting plate.

[0007] A protective mechanism for overload protection of the forging punch is provided between the protective plate and the mounting plate.

[0008] Preferably, a guide rod is fixedly connected to the base through the mounting plate, and the mounting plate has a movable through hole for sliding the guide rod.

[0009] Preferably, the protective mechanism includes a guide groove formed on the mounting plate, a guide slider slidably fitted in the guide groove, a storage groove formed on the protective plate, a limit slider slidably fitted in the storage groove, and a traction rod connecting the guide slider and the limit slider.

[0010] A spring is welded between the storage slide and the limiting slider. A damper that is fixedly connected to the limiting slider is fixedly connected to the storage slide. A pressure detection plate is fixedly installed at the end of the storage slide away from the spring. A pressure display that is electrically connected to the pressure detection plate is fixedly installed on the protection plate. An alarm that is installed on the protection plate is electrically connected to the pressure display.

[0011] Preferably, the guide groove has openings at both ends, the end face of the guide slider that contacts the guide groove is provided with a friction plate, and a sealing plate for closing the side openings of the guide groove is rotatably mounted on the mounting plate via a damping bearing, and a rotating shaft is fixedly connected to the sealing plate.

[0012] Preferably, the two ends of the traction rod are respectively pin-connected to the guide slider and the limiting slider, and the limiting slider is located at one end of the receiving groove near the center of the protective plate.

[0013] Preferably, the spring is movably mounted on the damper, and the output end of the alarm is a frustum-shaped structure.

[0014] Compared with the prior art, the present invention has the following advantages:

[0015] 1. This utility model uses bolts to fix the protective plate to the base, allowing the protective plate to be disassembled. The guide groove has openings at both ends, allowing the guide slider to slide directly out of the guide groove. Compared with the prior art that uses fluid for overload protection, this technical solution achieves overload protection through a mechanical structure. This allows workers to complete the disassembly and assembly of the overload protection device simply by disassembling the bolts and slider, which helps improve the work efficiency of workers.

[0016] 2. This utility model detects pressure values ​​through a pressure detection plate, a pressure display, and an alarm, and issues an alarm when the pressure value is too high, reminding staff that the pressure value is too high so that staff can handle it in time, thereby achieving the purpose of overload protection. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of an overload protection device for a forging punch proposed in this utility model;

[0018] Figure 2 This is a top view of an overload protection device for a forging punch proposed in this utility model;

[0019] Figure 3 This is a side view of an overload protection device for a forging punch proposed in this utility model.

[0020] In the diagram: 1. Base; 2. Protective plate; 3. Hydraulic cylinder; 4. Mounting plate; 5. Forging punch; 6. Guide rod; 7. Guide groove; 8. Guide slider; 9. Storage groove; 10. Limit slider; 11. Traction rod; 12. Spring; 13. Damper; 14. Pressure detection plate; 15. Pressure display; 16. Alarm; 17. Enclosure plate. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0022] Reference Figures 1-3 An overload protection device for a forging punch includes a base 1, a protective plate 2 bolted to the base 1, a hydraulic cylinder 3 fixedly mounted on the base 1, an installation plate 4 fixedly connected to the output end of the hydraulic cylinder 3, a forging punch 5 fixedly mounted on the installation plate 4, a guide rod 6 passing through the installation plate 4 fixedly connected to the base 1, and an movable through hole for sliding the guide rod 6 on the installation plate 4. The guide rod 6 guides and limits the installation plate 4, which helps to ensure the stability of the installation plate 4 when it moves vertically.

[0023] A protective mechanism for overload protection of the forging punch 5 is provided between the protective plate 2 and the mounting plate 4. The protective mechanism can buffer the impact force generated by the forging punch 5, thereby reducing the probability of overload of the forging punch 5 during the production of steel ring forgings. With the setting of pressure detection plate 14, pressure display 15 and alarm 16, the device can remind the staff to handle the situation when overload occurs, so that the device can effectively protect the forging punch 5 from overload.

[0024] Further explanation: The protective mechanism includes a guide groove 7 opened on the mounting plate 4. The guide groove 7 has openings at both ends. A guide slider 8 is slidably fitted in the guide groove 7. A friction plate is provided on the end face of the guide slider 8 that contacts the guide groove 7. The frictional resistance generated by the friction plate and the inner wall of the guide groove 7 can prevent the guide slider 8 from moving when it is not pulled by external force. A sealing plate 17 for closing the side openings of the guide groove 7 is rotatably mounted on the mounting plate 4 through a damping bearing. A rotating shaft is fixedly connected to the sealing plate 17. The setting of the rotating shaft can provide convenience for the operation of the staff.

[0025] The protective plate 2 has a storage groove 9, and a limit slider 10 is slidably mounted in the storage groove 9. The limit slider 10 is located at one end of the storage groove 9 near the center of the protective plate 2. A traction rod 11 is connected between the guide slider 8 and the limit slider 10 by a pin.

[0026] A spring 12 is welded between the storage slide 9 and the limiting slider 10. A damper 13 is fixedly connected to the storage slide 9 and fixedly connected to the limiting slider 10. The spring 12 is movably mounted on the damper 13. Through the spring 12 and the damper 13, the mounting plate 4 can be shock-absorbing and protected by the traction rod 11.

[0027] A pressure detection plate 14 is fixedly installed at the end of the storage slide 9 away from the spring 12. A pressure display 15 electrically connected to the pressure detection plate 14 is fixedly installed on the protection plate 2. An alarm 16 installed on the protection plate 2 is electrically connected to the pressure display 15. The output end of the alarm 16 is a frustum-shaped structure.

[0028] It should be noted that the specific models and specifications of the hydraulic cylinder 3, forging punch 5, spring 12, damper 13, pressure detection plate 14, pressure display 15 and alarm 16 need to be selected and determined according to the actual specifications of the device. The specific selection calculation method adopts the existing technology in this field, so it will not be elaborated.

[0029] The functional principle of this utility model can be explained through the following operation methods:

[0030] The protective plate 2 is fixedly installed on the base 1 by bolts, and the sealing plate 17 is rotated to a vertical position. The guide slider 8 is slidably fitted into the guide groove 7, so that the traction rod 11 is in an inclined position. The sealing plate 17 is rotated to a horizontal position to close the openings at both ends of the guide groove 7.

[0031] The hydraulic cylinder 3 drives the mounting plate 4 to move vertically up and down on the guide rod 6, thereby driving the forging punch 5 to operate. The mounting plate 4 moves upward, causing the guide slider 8 to move upward. The guide slider 8 drives the traction rod 11 to deflect, causing the guide slider 8 to drive the traction rod 11 to deflect. The traction rod 11 drives the limit slider 10 to move inward in the receiving groove 9, causing the spring 12 and damper 13 to deform. The limit slider 10 squeezes the pressure detection plate 14, so that the pressure value is transmitted to the pressure display 15. When the pressure value exceeds the preset alarm value, the pressure display 15 can control the alarm 16 to be activated, and the alarm 16 will remind the staff so that they can deal with the situation in time.

[0032] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. An overload protection device for a forging punch, comprising a base (1), characterized in that, A protective plate (2) is bolted to the base (1), a hydraulic cylinder (3) is fixedly installed on the base (1), an installation plate (4) is fixedly connected to the output end of the hydraulic cylinder (3), and a forging punch (5) is fixedly installed on the installation plate (4). A protective mechanism for overload protection of the forging punch (5) is provided between the protective plate (2) and the mounting plate (4).

2. The overload protection device for a forging punch according to claim 1, characterized in that, A guide rod (6) that passes through the mounting plate (4) is fixedly connected to the base (1), and the mounting plate (4) has an movable through hole for sliding the guide rod (6).

3. The overload protection device for a forging punch according to claim 1, characterized in that, The protective mechanism includes a guide groove (7) opened on the mounting plate (4), a guide slider (8) is slidably fitted in the guide groove (7), a storage groove (9) is opened on the protective plate (2), a limit slider (10) is slidably fitted in the storage groove (9), and a traction rod (11) is connected between the guide slider (8) and the limit slider (10). A spring (12) is welded between the storage slide (9) and the limiting slider (10). A damper (13) is fixedly connected to the storage slide (9) and fixedly connected to the limiting slider (10). A pressure detection plate (14) is fixedly installed at the end of the storage slide (9) away from the spring (12). A pressure display (15) is fixedly installed on the protection plate (2) and electrically connected to the pressure detection plate (14). An alarm (16) is electrically connected to the pressure display (15) and installed on the protection plate (2).

4. The overload protection device for a forging punch according to claim 3, characterized in that, The guide groove (7) has openings at both ends. The end face of the guide slider (8) that contacts the guide groove (7) is provided with a friction plate. The mounting plate (4) is rotatably mounted with a damping bearing to close the side opening of the guide groove (7). A rotating shaft is fixedly connected to the closing plate (17).

5. The overload protection device for a forging punch according to claim 3, characterized in that, The two ends of the traction rod (11) are respectively pin connected to the guide slider (8) and the limiting slider (10). The limiting slider (10) is located at one end of the receiving groove (9) near the center of the protective plate (2).

6. The overload protection device for a forging punch according to claim 3, characterized in that, The spring (12) is movably mounted on the damper (13), and the output end of the alarm (16) is a frustum-shaped structure.

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