Punching die with punch convenient to replace

Abstract

The utility model relates to the technical field of punching dies, in particular to a punching die with a punch convenient to replace, which comprises a punching table, two L-shaped supports are fixedly connected to the top side of the punching table, and a U-shaped mounting frame is fixedly connected to the top sides of the two L-shaped supports. The L-shaped support and the stamping table are provided with a bottom die structure with the adjustable position. The utility model has the advantages that the position-adjustable bottom die structure, the hydraulic cylinder, the U-shaped moving frame, the fixing bolt, the turntable, the turntable fixing hole, the supporting plate, the polygonal mounting frame, the positioning clamping groove, the positioning clamping plate, the mounting plate, the punch, the fixing insertion hole and the fixing structure are arranged in a matched manner; according to the punching device, the puncher pin with the appropriate diameter and the punching hole with the appropriate diameter can be selected according to the diameter needing to be punched, the operation of adjusting the positions of the puncher pin and the punching hole is simple and convenient, the time needed for adjusting the puncher pin and the punching hole is shortened, and the effect of improving the punching efficiency is achieved.

Description

Technical Field

[0001] This utility model relates to the field of punching die technology, and in particular to a punching die that is easy to replace the punch. Background Technology

[0002] A punching die is a mold used to create holes in various materials. While primarily used for metal sheets, punching dies are also suitable for other materials such as steel plates, leather, cloth, and wood. The working principle of a punching die is that a punch on the die impacts the material, forcing out a portion of the material to form the desired hole.

[0003] Punches are needed in the process of punching workpieces using stamping dies. When punching a workpiece, the workpiece is first placed on the lower die, and then the punch is used to punch the workpiece. Since the punching specifications of the workpiece are different, different specifications of punches are required. When replacing the punch, the original punch needs to be disassembled and a new punch needs to be installed. Replacing the punch requires specific tools and takes a certain amount of time, which is inconvenient and will affect the punching efficiency. Therefore, a punching die that is easy to replace the punch is needed to solve the above problems. Utility Model Content

[0004] The purpose of this invention is to at least solve one of the aforementioned technical defects.

[0005] Therefore, one objective of this utility model is to provide a punching die that facilitates punch replacement, so as to solve the problems mentioned in the background art and overcome the shortcomings of the prior art.

[0006] To achieve the above objectives, one embodiment of this utility model provides a punching die that facilitates punch replacement, comprising a stamping table. Two L-shaped supports are fixedly connected to the top side of the stamping table, and a U-shaped mounting bracket is fixedly connected to the top side of the two L-shaped supports. An adjustable bottom die structure is provided on the L-shaped supports and the stamping table. A hydraulic cylinder is fixedly mounted on the top side of the U-shaped mounting bracket, and a U-shaped movable frame is fixedly connected to the output end of the hydraulic cylinder. A fixing bolt is threaded onto one side of the U-shaped movable frame, and a turntable is rotatably connected inside the U-shaped movable frame via a rotating shaft. One side of the turntable is open... The device has several turntable fixing holes. Several support plates are fixedly connected to the outer surface of the turntable. A polygonal mounting frame is fixedly connected to the side of the support plates away from the turntable. Positioning slots are opened on several sides of the polygonal mounting frame. Positioning plates are snapped into the inner walls of the positioning slots. Mounting plates are fixedly connected to one side of the positioning plates. Punches are fixedly installed on the side of the mounting plates away from the positioning plates. Fixing holes are opened on the side of the mounting plates away from the positioning plates. A fixing structure for fixing the positioning plates is provided on the support plates.

[0007] Preferably, in any of the above embodiments, the bottom mold structure includes a guide rail, a bottom mold, stamping holes, a first adjustment socket, a second adjustment socket, and an adjustment bolt. The top side of the stamping table is fixedly mounted with a guide rail, and the bottom mold is slidably connected to the outer surface of the guide rail. The top side of the bottom mold has several stamping holes and two first adjustment sockets. Each of the two L-shaped brackets has several second adjustment sockets on one side. An adjustment bolt is threadedly connected to the inner wall of one second adjustment socket and one first adjustment socket.

[0008] Preferably, in any of the above embodiments, the fixing structure includes a guide groove, a guide rod, a fixing spring, a movable plate, and a fixing rod. A guide groove is provided on one side of the support plate. A guide rod and a fixing spring are fixedly connected to the inner wall of the guide groove. A movable plate that is slidably connected to the guide groove is slidably connected to the outer surface of the guide rod. A fixing rod that matches the size of the fixing hole is fixedly connected to one side of the movable plate. The fixing rod passes through the polygonal mounting frame and is slidably connected to the polygonal mounting frame.

[0009] Preferably, one side of the stamping table has a discharge hole, and a waste collection box corresponding to the position of the discharge hole is provided below the stamping table. The diameter of the discharge hole is larger than the diameter of the stamping hole.

[0010] Preferably, in any of the above solutions, the positions of the fixing bolts and the fixing holes of the turntable correspond, the sizes of the fixing bolts and the fixing holes of the turntable are adapted to each other, the number of the fixing holes of the turntable corresponds to the number of the positioning slots, and the positions of the fixing holes of the turntable and the positioning slots correspond.

[0011] Preferably, in any of the above solutions, both the positioning plate and the positioning slot are T-shaped, and the size of the positioning plate and the positioning slot are adapted to each other.

[0012] Preferably, in any of the above schemes, the positions of the punch and the punching hole correspond, the sizes of the punch and the punching hole are matched, and the diameters of several punches and punching holes are different.

[0013] Compared with the prior art, the advantages and beneficial effects of this utility model are as follows:

[0014] By employing an adjustable bottom mold structure, hydraulic cylinder, U-shaped moving frame, fixing bolts, turntable, turntable fixing hole, support plate, polygonal mounting frame, positioning slot, positioning plate, mounting plate, punch, fixing hole, and fixing structure, the system allows for the selection of a suitable punch diameter and punching hole diameter based on the required punching diameter. This simplifies the adjustment of the punch and punching hole positions, reduces the time required for adjustment, and improves punching efficiency. Furthermore, it simplifies the installation and removal of the punch, allowing for the selection of a suitable diameter punch and its installation on the polygonal mounting frame, and facilitates replacement of a damaged punch. Attached Figure Description

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

[0016] Figure 2 This is a schematic diagram of the structure of this utility model without the bottom mold assembled;

[0017] Figure 3 This is a structural schematic diagram of the hydraulic cylinder and its connecting components of this utility model;

[0018] Figure 4 This utility model Figure 3 A schematic diagram of the structure without the U-shaped movable frame assembled in the middle;

[0019] Figure 5 This utility model Figure 4 A schematic diagram of the structure without the positioning plate installed.

[0020] Figure 6 This is a schematic diagram of the positioning plate of this utility model;

[0021] Figure 7 This is a schematic diagram of the structure of the bottom mold of this utility model.

[0022] In the diagram: 1-Punching table, 2-L-shaped bracket, 3-U-shaped mounting bracket, 4-Bottom mold structure, 401-Guide rail, 402-Bottom mold, 403-Punching hole, 404-First adjustment socket, 405-Second adjustment socket, 406-Adjusting bolt, 5-Hydraulic cylinder, 6-U-shaped moving frame, 7-Fixing bolt, 8-Turntable, 9-Turntable fixing hole, 10-Support plate, 11-Polygonal mounting frame, 12-Positioning slot, 13-Positioning plate, 14-Mounting plate, 15-Punch, 16-Fixing socket, 17-Fixing structure, 1701-Guide groove, 1702-Guide rod, 1703-Fixing spring, 1704-Moving plate, 1705-Fixing rod, 18-Discharge through hole, 19-Scrap collection box. Detailed Implementation

[0023] The present invention will be further described below with reference to the accompanying drawings, but the scope of protection of the present invention is not limited to the following description.

[0024] like Figures 1 to 7As shown, a punching die for easy punch replacement includes a punching table 1. Two L-shaped supports 2 are fixedly connected to the top side of the punching table 1. A U-shaped mounting bracket 3 is fixedly connected to the top side of the two L-shaped supports 2. An adjustable bottom die structure 4 is provided on the L-shaped supports 2 and the punching table 1. A hydraulic cylinder 5 is fixedly mounted on the top side of the U-shaped mounting bracket 3. A U-shaped movable frame 6 is fixedly connected to the output end of the hydraulic cylinder 5. A fixing bolt 7 is threaded onto one side of the U-shaped movable frame 6. A turntable 8 is rotatably connected to the inside of the U-shaped movable frame 6 via a rotating shaft. Several turntable fixing holes 9 are opened on one side of the turntable 8. Several support plates 10 are fixedly connected to the outer surface of the turntable 8. A polygonal mounting frame 11 is fixedly connected to the side of the support plates 10 away from the turntable 8. The diameter of the circumscribed circle of the polygonal mounting frame 11 is smaller than the width of the internal dimension of the U-shaped mounting bracket 3 to avoid interference between the polygonal mounting frame 11 and the U-shaped mounting bracket 3 during rotation, allowing the polygonal mounting frame 11 to rotate smoothly. The mounting frame 11 has positioning slots 12 on several sides, and positioning plates 13 are engaged with the inner walls of the positioning slots 12. Mounting plates 14 are fixedly connected to one side of each positioning plate 13. Punches 15 are fixedly mounted on the side of each mounting plate 14 away from the positioning plates 13. Fixing holes 16 are provided on the side of each mounting plate 14 away from the positioning plates 13. A fixing structure 17 for fixing the positioning plates 13 is provided on the support plate 10. This is used during the punching operation of materials. During operation, the fixing bolt 7 is separated from the turntable fixing hole 9 in the appropriate position. Then, the turntable 8 is rotated to drive the support plate 10 and the polygonal mounting frame 11 to rotate. At this time, the positioning plate 13 drives the mounting plate 14 and the punch 15 to rotate. The punch 15 of the appropriate diameter is adjusted to a vertical position according to the diameter of the hole to be punched on the workpiece. At this time, the fixing bolt 7 corresponds to the position of the turntable fixing hole 9 in the appropriate position. Then, the fixing bolt 7 is connected to the turntable fixing hole 9 in the appropriate position, thereby fixing the turntable 8 in the appropriate position.

[0025] As an optional technical solution of this utility model, the bottom mold structure 4 includes a guide rail 401, a bottom mold 402, a punching hole 403, a first adjustment socket 404, a second adjustment socket 405, and an adjustment bolt 406. The guide rail 401 is fixedly installed on the top side of the punching table 1, and the bottom mold 402 is slidably connected to the outer surface of the guide rail 401. The top side of the bottom mold 402 is provided with several punching holes 403 and two first adjustment sockets 404. Several second adjustment sockets 405 are provided on one side of each of the two L-shaped brackets 2. The inner surface of one second adjustment socket 405 and the first adjustment socket 404 are connected to the bottom mold 402. The wall threaded connection has an adjusting bolt 406. After selecting a punch 15 of appropriate diameter, the bottom mold 402 is moved along the direction of the guide rail 401. At this time, the punching hole 403 moves accordingly. According to the diameter of the punch 15, the punching hole 403 of appropriate diameter is moved to the position corresponding to the punch 15. At this time, the first adjusting hole 404 corresponds to the position of the second adjusting hole 405 of appropriate position. Then, the adjusting bolt 406 is connected to the second adjusting hole 405 of appropriate position and the first adjusting hole 404 of appropriate position, thereby fixing the bottom mold 402 in the appropriate position.

[0026] As an optional technical solution of this utility model, the fixing structure 17 includes a guide groove 1701, a guide rod 1702, a fixing spring 1703, a moving plate 1704, and a fixing insert rod 1705. A guide groove 1701 is provided on one side of the support plate 10. The guide rod 1702 and the fixing spring 1703 are fixedly connected to the inner wall of the guide groove 1701. The moving plate 1704, which is slidably connected to the guide groove 1701, is slidably connected to the outer surface of the guide rod 1702. One end of the fixing spring 1703 away from the inner wall of the guide groove 1701 is fixedly connected to the moving plate 1704, allowing the moving plate 1704 to move smoothly and causing the fixing spring 1703 to undergo elastic deformation. A portion of the guide rod 1702 is located inside the fixing spring 1703, preventing the fixing spring 1703 from deforming during operation. During the elastic deformation process, bending occurs. A fixed insertion rod 1705, which is adapted to the size of the fixed insertion hole 16, is fixedly connected to one side of the movable plate 1704. The fixed insertion rod 1705 passes through the polygonal mounting frame 11 and is slidably connected to the polygonal mounting frame 11. When installing the punch 15, the movable plate 1704 first moves the fixed insertion rod 1705 to move it out of the positioning slot 12. At this time, the fixing spring 1703 is in a compressed state. Then, the positioning plate 14 is connected to the positioning slot 12. At this time, the fixed insertion rod 1705 corresponds to the position of the fixed insertion hole 16. Then, the movable plate 1704 is slowly released. Under the reaction force of the fixing spring 1703, the fixed insertion rod 1705 is inserted into the fixed insertion hole 16, thereby completing the operation of installing the punch 15.

[0027] As an optional technical solution of this utility model, a discharge through hole 18 is provided on one side of the stamping table 1, and a waste collection box 19 corresponding to the position of the discharge through hole 18 is provided below the stamping table 1. The diameter of the discharge through hole 18 is larger than the diameter of the stamping hole 403, so that the punching waste can smoothly enter the interior of the waste collection box 19 through the discharge through hole 18.

[0028] As an optional technical solution of this utility model, the fixing bolt 7 is positioned corresponding to the turntable fixing hole 9, the size of the fixing bolt 7 and the turntable fixing hole 9 are matched, the number of turntable fixing holes 9 and the number of positioning slots 12 are corresponding, and the positions of turntable fixing holes 9 and positioning slots 12 are corresponding, so that the fixing bolt 7 can be smoothly connected to the turntable fixing hole 9.

[0029] As an optional technical solution of this utility model, both the positioning plate 13 and the positioning slot 12 are T-shaped. The positioning plate 13 and the positioning slot 12 are matched in size, so that the positioning plate 13 can be smoothly connected to the positioning slot 12, and the connection between the positioning plate 13 and the positioning slot 12 is relatively firm.

[0030] As an optional technical solution of this utility model, the punch 15 is positioned corresponding to the punching hole 403, the size of the punch 15 and the punching hole 403 are adapted to each other, and the diameters of several punches 15 and punching holes 403 are different, so that the punching die can perform punching operations on workpieces with multiple diameters.

[0031] A punching die that facilitates punch replacement, the working principle of which is as follows:

[0032] 1) Separate the fixing bolt 7 from the turntable fixing hole 9 in the appropriate position;

[0033] 2) Rotate the turntable 8 to make the support plate 10 and the polygonal mounting frame 11 rotate. At this time, the positioning plate 13 drives the mounting plate 14 and the punch 15 to rotate. Adjust the punch 15 to a vertical position according to the diameter of the hole to be punched on the workpiece. At this time, the fixing bolt 7 corresponds to the position of the turntable fixing hole 9 in the appropriate position.

[0034] 3) Connect the fixing bolt 7 to the turntable fixing hole 9 in the appropriate position, and fix the turntable 8 and punch 15 in the appropriate position;

[0035] 4) Separate the adjusting bolt 406 from the first adjusting socket 404 and the second adjusting socket 405;

[0036] 5) Move the bottom mold 402 along the direction of the guide rail 401. At this time, the punching hole 403 moves accordingly. According to the diameter of the punch 15, move the punching hole 403 of appropriate diameter to the position corresponding to the punch 15. At this time, the first adjusting hole 404 corresponds to the position of the second adjusting hole 405 of appropriate position.

[0037] 6) Connect the adjusting bolt 406 to the second adjusting hole 405 and the first adjusting hole 404 in a suitable position, thereby fixing the bottom mold 402 in a suitable position;

[0038] 7) Place the material on the bottom mold 402, start the hydraulic cylinder 5 to move the U-shaped moving frame 6 downward. At this time, the turntable 8 drives the polygonal mounting frame 11 to move downward, thereby moving the punch 15 downward and punching the workpiece.

[0039] In summary, this punching die that facilitates punch replacement, through the coordinated arrangement of an adjustable bottom die structure 4, a hydraulic cylinder 5, a U-shaped moving frame 6, a fixing bolt 7, a turntable 7, a turntable fixing hole 9, a support plate 10, a polygonal mounting frame 11, a positioning slot 12, a positioning plate 13, a mounting plate 14, a punch 15, a fixing insertion hole 16, and a fixing structure 17, allows for the selection of a suitable diameter punch 15 and a suitable diameter punching hole 403 according to the required punching diameter. It also simplifies the operation of adjusting the position of the punch 15 and the punching hole 403, reducing the time required for adjustment and improving punching efficiency. Furthermore, it simplifies the installation and removal of the punch 15, allowing for the selection of a suitable diameter punch 15 and its installation on the polygonal mounting frame 11, and facilitates the replacement of a new punch 15 when it is damaged.

Claims

1. A punching die that facilitates punch replacement, characterized in that: The system includes a stamping table (1), on which two L-shaped brackets (2) are fixedly connected to the top side. A U-shaped mounting bracket (3) is fixedly connected to the top side of the two L-shaped brackets (2). An adjustable bottom mold structure (4) is provided on the L-shaped brackets (2) and the stamping table (1). A hydraulic cylinder (5) is fixedly installed on the top side of the U-shaped mounting bracket (3). A U-shaped moving frame (6) is fixedly connected to the output end of the hydraulic cylinder (5). A fixing bolt (7) is threadedly connected to one side of the U-shaped moving frame (6). A turntable (8) is rotatably connected to the inside of the U-shaped moving frame (6) via a rotating shaft. Several turntable fixing holes (9) are opened on one side of the turntable (8). Several supports are fixedly connected to the outer surface of the turntable (8). A polygonal mounting frame (11) is fixedly connected to one of the support plates (10) on the side away from the turntable (8). A positioning slot (12) is provided on one of the sides of the polygonal mounting frame (11). A positioning plate (13) is snapped into the inner wall of the positioning slot (12). An mounting plate (14) is fixedly connected to one side of the positioning plate (13). A punch (15) is fixedly installed on the side of the mounting plate (14) away from the positioning plate (13). A fixing hole (16) is provided on the side of the mounting plate (14) away from the positioning plate (13). A fixing structure (17) for fixing the positioning plate (13) is provided on the support plate (10).

2. A punching die for easy punch replacement according to claim 1, characterized in that: The bottom mold structure (4) includes a guide rail (401), a bottom mold (402), a punching hole (403), a first adjustment hole (404), a second adjustment hole (405), and an adjustment bolt (406). The top side of the punching table (1) is fixedly installed with the guide rail (401). The bottom mold (402) is slidably connected to the outer surface of the guide rail (401). The top side of the bottom mold (402) is provided with several punching holes (403) and two first adjustment holes (404). Each of the two L-shaped brackets (2) is provided with several second adjustment holes (405). An adjustment bolt (406) is threadedly connected to the inner wall of one second adjustment hole (405) and one first adjustment hole (404).

3. A punching die for easy punch replacement according to claim 2, characterized in that: The fixed structure (17) includes a guide groove (1701), a guide rod (1702), a fixed spring (1703), a movable plate (1704), and a fixed insert rod (1705). The support plate (10) has a guide groove (1701) on one side. The guide rod (1702) and the fixed spring (1703) are fixedly connected to the inner wall of the guide groove (1701). The movable plate (1704) is slidably connected to the guide groove (1701) on the outer surface of the guide rod (1702). A fixed insert rod (1705) that is adapted to the size of the fixed insertion hole (16) is fixedly connected to one side of the movable plate (1704). The fixed insert rod (1705) passes through the polygonal mounting frame (11) and is slidably connected to the polygonal mounting frame (11).

4. A punching die for easy punch replacement according to claim 3, characterized in that: A discharge hole (18) is provided on one side of the stamping table (1), and a waste collection box (19) corresponding to the position of the discharge hole (18) is provided below the stamping table (1). The diameter of the discharge hole (18) is larger than the diameter of the stamping hole (403).

5. A punching die for easy punch replacement according to claim 4, characterized in that: The position of the fixing bolt (7) corresponds to the position of the turntable fixing hole (9), the size of the fixing bolt (7) is adapted to the size of the turntable fixing hole (9), the number of the turntable fixing holes (9) corresponds to the number of the positioning slots (12), and the position of the turntable fixing holes (9) corresponds to the position of the positioning slots (12).

6. A punching die for easy punch replacement according to claim 5, characterized in that: The positioning plate (13) and the positioning slot (12) are both T-shaped, and the positioning plate (13) and the positioning slot (12) are matched in size.

7. A punching die for easy punch replacement according to claim 6, characterized in that: The punch (15) is positioned corresponding to the punching hole (403), and the size of the punch (15) is adapted to the punching hole (403). The diameters of several punches (15) and punching holes (403) are different.

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