Plate punching device

Abstract

The utility model discloses a plate punching device, which belongs to the technical field of plate punching and comprises a pressing mechanism, the pressing mechanism is fixedly mounted in a rack, the top end of the pressing mechanism is fixedly connected to the inner side of the top of the rack, and the bottom end of the pressing mechanism is fixedly connected to the inner side of the bottom of the rack; the pressing mechanism comprises a multi-aperture pressing plate, the top end of the multi-aperture pressing plate is connected with a limiting assembly, and the limiting assembly controls the multi-aperture pressing plate to vertically move through telescopic reciprocating motion between a telescopic rod and a limiting device, so that pressing and fixing of the multi-aperture pressing plate on the plate are achieved. Under the combined action of the pressure balancing device arranged at the bottom end of the multi-aperture pressing plate and the elastic reset device, impact force borne by the multi-aperture pressing plate can be effectively buffered, collision between the multi-aperture pressing plate and a plate is well weakened, and therefore damage to the plate and the multi-aperture pressing plate is avoided.

Description

Technical Field

[0001] This utility model belongs to the technical field of sheet metal punching, and in particular relates to a sheet metal punching device. Background Technology

[0002] Perforated sheet metal refers to drilling holes in sheets of different materials to obtain perforated sheets. These sheets are typically made of durable materials such as stainless steel, aluminum, iron, or copper, and are processed by precision stamping or milling machines to achieve superior properties such as high durability and resistance to deformation. Perforated sheets are widely used in various fields such as chemical machinery, pharmaceutical equipment, and hydraulic components.

[0003] Existing punching mechanisms mainly consist of a manual or electric pump and a working head. When punching sheet metal, it is mostly necessary to manually fix the sheet metal. However, manual fixing of sheet metal is extremely dangerous and poses serious safety hazards. In addition, even if some manufacturers use mechanical clamps to fix the punched sheet, the fixed parts are limited. This leads to uneven fixing pressure during the punching process, which can easily cause the sheet metal to crack or be damaged, seriously affecting the actual punching efficiency.

[0004] For example, Chinese patent CN 215544138U discloses a plate punching machine with high safety, which uses support rods and clamps to fix the punched plate. In actual operation, it is difficult to fix irregular plates, and the fixing force is uneven. Under the impact of the punching blade, the plate is easily cracked or damaged. Summary of the Invention

[0005] The technical problem to be solved by this utility model is to provide a plate punching device to solve the problems mentioned in the background art or to achieve better technical effects.

[0006] To solve the aforementioned technical problems, the inventors, through practice and summarization, derived the technical solution of this utility model. This utility model discloses a sheet metal punching device, including a pressing mechanism. The pressing mechanism is fixedly installed inside a frame and includes a multi-hole pressure plate. A limiting component is connected to the top of the multi-hole pressure plate. The limiting component includes a telescopic rod and a limiting device slidably connected to the end of the telescopic rod. Both the limiting device and the telescopic rod are cylindrical rods, and the inner diameter of the limiting device is larger than the outer diameter of the telescopic rod. The limiting component controls the vertical movement of the multi-hole pressure plate through the reciprocating motion between the telescopic rod and the limiting device, thereby achieving the pressing and fixing of the sheet metal by the multi-hole pressure plate.

[0007] Furthermore, the multi-hole pressure plate is provided with several upper punch holes of different diameters, and the centerline distance of each upper punch hole is equal.

[0008] Furthermore, the shape of the upper punch on the multi-hole plate is similar to the shape of the punching head, and the number of upper punches on the multi-hole plate is not less than 8 groups.

[0009] Furthermore, the top center of the multi-hole pressure plate is fixedly connected to the telescopic rod.

[0010] Furthermore, a pressure balancing device is fixedly connected to the bottom of the limiting component. The pressure balancing device is trapezoidal in shape, and an elastic reset device is fixedly connected to its bottom end. When subjected to pressure from the pressure balancing device, it can convert the pressure into its own elastic potential energy, and when the pressure disappears, it can quickly return to its original state. Through the combined action of the pressure balancing device and the elastic reset device located at the bottom of the multi-pore pressure plate, the impact force on the multi-pore pressure plate can be effectively buffered, the collision between the multi-pore pressure plate and the plate material can be greatly reduced, thereby avoiding damage to the plate material and the multi-pore pressure plate.

[0011] Furthermore, the elastic reset device is connected between the pressure balancing device and the base.

[0012] Furthermore, it also includes a punching mechanism and a support mechanism. The punching mechanism includes a punching tool holder and a punching head. Both the punching tool holder and the punching head are located inside the frame. The punching head is detachably connected to the punching tool holder for easy cleaning or replacement.

[0013] Furthermore, the punching mechanism includes a cylinder, and a buffer pad is fixedly connected between the cylinder and the frame. The buffer pad can be made of rubber or resin, which can effectively buffer the impact of the cylinder on the entire frame during operation, preventing the entire device from shaking or vibrating significantly, and improving operational safety.

[0014] Furthermore, the support mechanism is fixedly connected to the inner side of the bottom end of the frame, including a support base and a support plate installed on the upper end of the support base and fixed horizontally. A lower punch hole is opened in the middle of the support plate, and the lower punch hole is directly opposite the punching head.

[0015] Furthermore, the diameter of the lower punch is greater than or equal to the diameter of any upper punch.

[0016] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0017] (1) The plate punching device disclosed in this utility model uses a limiting component to control the vertical movement of the multi-hole pressure plate through telescopic reciprocating motion, thereby realizing the pressing and fixing of the plate by the multi-hole pressure plate. Without the need for manual fixing of the plate, it can also make the plate be fixed with uniform force, effectively avoiding cracking or damage of the plate during the punching process.

[0018] (2) The plate punching device disclosed in this utility model can effectively buffer the impact force on the multi-hole plate under the combined action of the pressure balancing device and the elastic reset device set at the bottom of the multi-hole plate, and effectively weaken the collision between the multi-hole plate and the plate, thereby avoiding damage to the plate and the multi-hole plate.

[0019] (3) The plate punching device disclosed in this utility model has a buffer pad fixedly connected between the cylinder and the frame, which can effectively buffer the impact of the cylinder on the entire frame when it is working, avoid the entire device from shaking or vibrating significantly, and improve the safety of operation. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0021] Figure 2 This is an enlarged structural schematic diagram of the pressing mechanism of this utility model;

[0022] Figure 3 This is a cross-sectional view of the multi-hole pressure plate (round hole) of this utility model;

[0023] Figure 4 This is a cross-sectional view of the multi-hole pressure plate (square hole) of this utility model.

[0024] In the diagram: 1. Cylinder; 2. Limiting device; 3. Telescopic rod; 4. Multi-hole pressure plate; 5. Upper punch; 6. Pressure balancing device; 7. Elastic reset device; 8. Base; 9. Lower punch; 10. Support seat; 11. Support plate; 12. Frame; 13. Punching head; 14. Punching tool holder; 15. Buffer pad. Detailed Implementation

[0025] To make the above-mentioned objectives, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to specific examples.

[0026] Example 1

[0027] like Figure 1 As shown, a sheet metal punching device includes a pressing mechanism, which is fixedly installed inside a frame 12. The top end of the pressing mechanism is fixedly connected to the inner side of the top of the frame 12, and the bottom end of the pressing mechanism is fixedly connected to the inner side of the bottom of the frame 12. The pressing mechanism includes a multi-hole pressure plate 4, and a limiting component is connected to the top end of the multi-hole pressure plate 4. The limiting component controls the vertical movement of the multi-hole pressure plate 4 through telescopic reciprocating motion, thereby realizing the pressing and fixing of the sheet metal by the multi-hole pressure plate 4.

[0028] A pressure balancing device 6 is fixedly connected to the bottom of the limiting component. The pressure balancing device 6 is trapezoidal in shape, and an elastic reset device 7 is fixedly connected to its bottom end. The elastic reset device 7 is connected between the pressure balancing device 6 and the base 8. When subjected to pressure from the pressure balancing device 6, it can convert the pressure into its own elastic potential energy. When the pressure disappears, it can quickly return to its original state. Through the combined action of the pressure balancing device 6 and the elastic reset device 7 at the bottom of the multi-pore pressure plate 4, the impact force on the multi-pore pressure plate 4 can be effectively buffered, and the collision between the multi-pore pressure plate 4 and the plate material can be greatly reduced, thereby avoiding damage to the plate material and the multi-pore pressure plate 4.

[0029] The aforementioned sheet metal punching device also includes a punching mechanism and a support mechanism fixedly installed inside the frame 12. The punching mechanism is located at the upper left end of the pressing mechanism, and the support mechanism is located at the lower end of the multi-hole pressure plate 4. When punching the sheet metal, the sheet metal is placed directly on the support mechanism. The parameters of the pressing mechanism are adjusted according to the actual thickness of the sheet metal to press the sheet metal tightly. The punching mechanism is used to punch the sheet metal, eliminating the need for manual pressing of the sheet metal for fixation, which improves safety and effectively avoids cracking caused by uneven impact force on the sheet metal.

[0030] Example 2

[0031] like Figure 2 As shown, a telescopic rod 3 is fixedly connected to the center of the top of the multi-hole pressure plate 4. The end of the telescopic rod 3 is connected to the limiting device 2. The multi-hole pressure plate 4 can move back and forth in the vertical direction on the limiting device 2 through the telescopic rod 3. At the same time, the multi-hole pressure plate 4 and the telescopic rod 3 can also rotate on the limiting device 2.

[0032] The punching mechanism includes, from top to bottom, a cylinder 1, a punching tool holder 14, and a punching head 13. The cylinder 1 is fixedly installed on the top of the frame 12. The punching tool holder 14 and the punching head 13 are located inside the frame 12. The punching tool holder 14 is fixedly connected to the output end of the cylinder 1. The punching head 13 is detachably connected to the punching tool holder 14 for easy cleaning or replacement.

[0033] Preferably, a buffer pad 15 is fixedly connected between the cylinder 1 and the frame 12. The buffer pad 15 can be made of rubber or resin, which can effectively buffer the impact of the cylinder on the entire frame 12 when it is working, avoid large-scale shaking or vibration of the entire device, and improve operational safety.

[0034] Preferably, the punch holder 13 can be a multi-section telescopic rod, which can increase the telescopic displacement of the punch head 13 at the end compared to a single telescopic rod, and reduce stress concentration, thus avoiding accidents caused by excessive stress on some parts of the holder, resulting in breakage or damage.

[0035] The support mechanism is fixedly connected to the inner side of the bottom end of the frame 12, including a support base 10 and a support plate 11 installed on the upper end of the support base 10 and fixed horizontally. A lower punch 9 is provided in the middle of the support plate 11, which is directly opposite the punching head 13, and the diameter of the lower punch 9 is greater than or equal to the diameter of any upper punch 5.

[0036] As a preferred option, the support base 10 has a hollow structure in the middle, which can collect the punching debris falling from the lower punch hole 9, making it easier to clean up later and preventing the debris from spreading to the surrounding environment and causing pollution, thus avoiding safety hazards for workers.

[0037] Example 3

[0038] like Figure 2 , 3 As shown in Figure 4, the multi-hole pressure plate 4 is provided with several upper punches 5 of different diameters, and the centerline distance of each through hole is equal. The shape of the upper punches 5 on the multi-hole pressure plate 4 is similar to the shape of the punching head 13, and can be any pattern. The upper punches 5 and lower punches 9 can be aligned simply by rotating the multi-hole pressure plate 4 for positioning. By installing punching heads 13 of different specifications on the punching tool holder 14, punching of different diameters of the sheet metal can be achieved.

[0039] Preferably, the multi-hole pressure plate 4 has 8 upper punch holes 5, and the diameter of each upper punch hole is greater than or equal to the outer diameter of the corresponding punching head 13, which can ensure that the punching head 13 can freely pass through the upper punch holes 5 on the punching tool holder 14.

[0040] Preferably, the upper punch 5 on the multi-hole pressure plate 4 can be circular or rectangular in shape.

[0041] When punching is required on sheet metal, first, according to the shape and size of the holes to be punched, install the corresponding punching head 13 and the rotating multi-hole pressure plate 4, and align the appropriate upper punch 5 and lower punch 9. Place the sheet metal flat on the support plate 11, and then adjust the parameters of the pressing mechanism according to the thickness of the sheet metal to be punched, so that it can press the sheet metal tightly. At this time, start the punching mechanism, and the cylinder 1 transmits power to the punching tool holder 14. The punching tool holder 14 drives the punching head 13 to pass through the upper punch 5 to punch the sheet metal. There is no need to manually press the sheet metal for fixation, which improves safety and can effectively avoid cracking caused by uneven impact force on the sheet metal.

[0042] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention.

[0043] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A plate punching device characterized by comprising: Including the pressing mechanism, fixedly installed in the frame (12) inside, including the multi-aperture pressing plate (4), the top end is connected with the limiting assembly, the limiting assembly includes telescopic rod (3) and the limiting device (2) with telescopic rod (3) end sliding connection, the limiting device (2) and telescopic rod (3) are all cylindrical rods, and the inner diameter of the limiting device (2) is greater than the outer diameter of the telescopic rod (3).

2. The apparatus of claim 1, wherein, The multi-aperture pressing plate (4) is provided with a plurality of upper punching holes (5) of different sizes, and the center lines of each upper punching hole (5) are equal.

3. The apparatus of claim 2, wherein, The shape of the upper punching hole (5) on the multi-aperture pressing plate (4) is similar to that of the punching tool bit (13), and the number of groups of the upper punching hole (5) on the multi-aperture pressing plate (4) is not less than 8 groups.

4. The apparatus of claim 1 wherein, The top center of the multi-aperture pressing plate (4) is fixedly connected with the telescopic rod (3).

5. The apparatus of claim 1 wherein, The bottom of the limiting assembly is fixedly connected with the pressure balance device (6), and the pressure balance device (6) is trapezoidal in shape, and the bottom is fixedly connected with the elastic reset device (7).

6. The apparatus of claim 5 wherein, The elastic reset device (7) is connected between the pressure balance device (6) and the base (8).

7. The apparatus of claim 1 wherein, It also includes a punching mechanism and a supporting mechanism, the punching mechanism includes a punching tool holder (14) and a punching tool bit (13), the punching tool holder (14) and the punching tool bit (13) are located in the inside of the frame (12), and the punching tool bit (13) is detachably connected to the punching tool holder (14).

8. The apparatus of claim 7 wherein, The punching mechanism includes a pneumatic cylinder (1), and the pneumatic cylinder (1) is fixedly connected with the frame (12) at the middle part.

9. The apparatus of claim 7 wherein, The supporting mechanism is fixedly connected to the inner side of the bottom end of the frame (12), including a supporting seat (10) and a supporting plate (11) fixed horizontally on the upper end of the supporting seat (10), a lower punching hole (9) is formed in the middle position of the supporting plate (11) and penetrates the supporting plate (11), and the lower punching hole (9) is opposite to the punching tool bit (13).

10. The apparatus of claim 9, wherein, The aperture of the lower punching hole (9) is greater than or equal to the aperture of any upper punching hole (5).

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