Punching device for anti-theft door machining
By designing a punching device for security door processing with a rotatable lower die and a limiting mechanism, the deformation problem of the security door frame during stamping was solved, and automated and precise punching operations were achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANDONG GUANHONG DOOR IND CO LTD
- Filing Date
- 2025-05-22
- Publication Date
- 2026-04-17
AI Technical Summary
In existing technologies, the frame of a security door needs to be manually pried open during the stamping process, which leads to deformation problems and is inconvenient to operate.
A punching device for processing security doors was designed, comprising a rotatable lower die, a limiting mechanism, and an adjusting mechanism. The limiting mechanism restricts the lower die to its initial position to avoid applying deformation force to the bent part during punching.
This eliminates the need for manual prying of the frame, avoiding deformation issues and improving the convenience and precision of the stamping operation.
Smart Images
Figure CN224128377U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of punching devices, and particularly to a punching device for processing anti-theft doors. Background Technique
[0002] Since the edge frame of the anti-theft door needs to install a lock, punching operations are required to facilitate the installation of the lock after the welding of the door frame and the end plate of the anti-theft door.
[0003] In the prior art, the door frame part of the anti-theft door needs to be bent by a bending machine into a bent part with a preset shape. After that, the whole forms a structure similar to a "mouth" shape, but there is a gap at the bottom. During stamping, it is necessary to manually掰开 (it seems there is a wrong word here, should it be something like "open") it so that the stamping surface can be fitted onto the lower die. This method is rather inconvenient, and after掰动 (again, wrong word), the frame (i.e., the folded edge part) is likely to have problems of excessive deformation. Content of the Utility Model
[0004] The purpose of the utility model is to provide a punching device for processing anti-theft doors to solve the problems raised in the background technique.
[0005] To achieve the above purpose, the utility model provides the following technical solution: A punching device for processing anti-theft doors includes a workbench. A punching mechanism is installed at the top end of the workbench. A rotating plate protruding forward integrally formed at one end of the workbench, and a limiting mechanism protruding forward integrally formed at the other end of the workbench. The lower die is rotatably installed at the center of the rotating plate through a rotating ring. A bent part is sleeved on the outer wall of the lower die, and an adjusting mechanism extending to the outer wall of the lower die is arranged below the interior of the lower die. The adjusting mechanism is used to limit one end of the bent part. A docking plate protruding outward is integrally formed at the free end of the lower die, and the limiting mechanism is used to limit the docking plate rotated to the reset state.
[0006] As a further scheme of the utility model: The punching mechanism includes a guiding shaft fixedly installed at the top end of the workbench. A sliding plate is slidably installed on the outer wall of the guiding shaft. A punching tool is installed at the bottom end of one end of the sliding plate. Two first springs are directly abutted between the outer wall of the sliding plate and the top end of the workbench, and the two first springs are sleeved on the outer peripheries of the two guiding shafts.
[0007] As a further scheme of the utility model: The limiting mechanism includes an upper protruding plate and a lower protruding plate integrally formed at one end of the workbench and protruding forward. A rear limiting plate is welded between the top end of the lower protruding plate and the bottom end of the upper protruding plate. The rear limiting plate is used to limit the docking plate, and the thickness of the cavity between the upper protruding plate and the lower protruding plate is equal to the thickness of the docking plate.
[0008] As a further embodiment of this utility model: the limiting mechanism further includes a mounting bracket fixedly installed on the worktable near the upper protruding plate. A guide sleeve is welded to the front end of the mounting bracket. A front limiting plate is axially slidably connected to the inner wall of the guide sleeve. A limiting groove extending along the length direction of the front limiting plate is opened on the inner wall of the guide sleeve. A limiting block slidably connected to the limiting groove is integrally formed on the outer wall of the front limiting plate. A pressure-bearing inclined surface is integrally formed on the end of the front limiting plate outside the guide sleeve in the reset state. A second spring is fixedly installed between the end of the front limiting plate inside the guide sleeve and the closed end inside the guide sleeve.
[0009] As a further embodiment of this utility model: the adjustment mechanism includes a groove that is recessed upward at the bottom end of the lower mold, a screw rod that extends through to the lower rotating end of the lower mold is rotatably mounted on the inner wall of the groove, a handle is coaxially mounted at one end of the screw rod below the lower rotating end of the lower mold, a slider that is slidably connected to the groove is threaded to the outer wall of the screw rod, and an adjustment plate that is slidably connected to the outer wall of the lower mold is fixedly mounted at the bottom end of the slider.
[0010] As a further improvement of this utility model: the top of the docking plate has an open structure, the top of the front limiting plate is flush with the top of the guide sleeve, and an upwardly protruding handle is fixedly installed on the top of the front limiting plate.
[0011] Compared with the prior art, the beneficial effects of this utility model are:
[0012] 1. By setting a rotatable lower die and a limiting mechanism, since the two ends of the die are supported in the reset state, and after the lower die rotates, the bent part can be fitted onto the surface of the lower die, and the lower die is restricted to the initial position by the limiting mechanism. This method does not require applying deformation force to the bent part during stamping to make it stuck on the lower die. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the structure of this utility model;
[0014] Figure 2 This is a schematic diagram of the lower mold rotating and opening according to this utility model;
[0015] Figure 3 This is a schematic diagram of the sliding installation of the adjustment plate of this utility model;
[0016] Figure 4 This is a schematic diagram of the adjustment mechanism structure of this utility model;
[0017] Figure 5 This is a schematic diagram of the limiting mechanism structure of this utility model;
[0018] Figure 6This is a schematic diagram of the internal structure of the limiting mechanism of this utility model.
[0019] In the diagram: 1. Workbench; 2. Rotating plate; 3. Lower die; 4. Upper protruding plate; 5. Guide shaft; 6. Sliding plate; 7. Spring No. 1; 8. Stamping tool; 9. Mounting bracket; 10. Guide sleeve; 11. Adjusting plate; 12. Bending part; 13. Rotating ring; 14. Lower protruding plate; 15. Rear limit plate; 16. Butt plate; 17. Slide groove; 18. Slider; 19. Screw; 20. Front limit plate; 21. Pressure inclined surface; 22. Handle; 23. Spring No. 2; 24. Limiting groove; 25. Limiting block. Detailed Implementation
[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0021] Please see Figures 1-6 In this embodiment of the utility model, a punching device for processing anti-theft doors includes a workbench 1, a punching mechanism installed at the top of the workbench 1, a rotating plate 2 integrally formed at one end of the workbench 1 protruding forward, and a limiting mechanism integrally formed at the other end of the workbench 1 protruding forward. A lower die 3 is rotatably installed at the center of the rotating plate 2 via a rotating ring 13. A bending member 12 is sleeved on the outer wall of the lower die 3. An adjustment mechanism extending to the outer wall of the lower die 3 is provided at the lower interior of the lower die 3. The adjustment mechanism is used to limit one end of the bending member 12. A connecting plate 16 protruding outward is integrally formed at the free end of the lower die 3. The limiting mechanism is used to limit the connecting plate 16 when it is rotated to the reset state.
[0022] In this embodiment: First, the adjustment mechanism is rotated according to the length of the bent part 12. The adjustment mechanism moves to a preset position. Then, when punching the bent part 12 (i.e., the edge frame of the security door), the limiting mechanism is pulled and moved to be misaligned with the docking plate 16. At this time, the docking plate 16 can be pulled and the lower die 3 can be rotated outward. At this time, one end of the bent part 12 is inserted into the outer wall of the lower die 3. One end of the bent part 12 is restricted by the adjustment mechanism. After insertion, the lower die 3 is pushed to reset. During the reset process, the lower die 3 squeezes the limiting mechanism until the lower die 3 is misaligned with the limiting mechanism. At this time, the reset limiting mechanism limits the lower die 3, keeping the lower die 3 in the current position. Then, the hydraulic push cylinder can be started. The hydraulic push cylinder drives the stamping mechanism to perform the hole-opening operation on the workpiece.
[0023] Please refer to this carefully. Figure 1 and Figure 2 The stamping mechanism includes a guide shaft 5 fixedly installed on the top of the worktable 1. A sliding plate 6 is slidably installed on the outer wall of the guide shaft 5. A stamping cutter 8 is installed at the bottom of one end of the sliding plate 6. Two No. 1 springs 7 are directly abutted between the outer wall of the sliding plate 6 and the top of the worktable 1. The two No. 1 springs 7 are sleeved on the outer periphery of the two guide shafts 5.
[0024] In this embodiment: the hydraulic push cylinder moves the sliding plate 6 downward, and the sliding plate 6 moves along the guide shaft 5. At this time, the first spring 7 is compressed. The downward-moving sliding plate 6 drives the stamping cutter 8 to perform stamping and hole-making operations on the bending part 12. When the hydraulic push cylinder resets, the first spring 7 pushes the sliding plate 6 to reset upward.
[0025] Please refer to this carefully. Figure 2 , Figure 5 and Figure 6 The limiting mechanism includes an upper protruding plate 4 and a lower protruding plate 14 integrally formed at one end of the worktable 1 and protruding forward. A rear limiting plate 15 is welded between the top end of the lower protruding plate 14 and the bottom end of the upper protruding plate 4. The rear limiting plate 15 is used to limit the docking plate 16. The thickness of the cavity between the upper protruding plate 4 and the lower protruding plate 14 is equal to the thickness of the docking plate 16. The limiting mechanism also includes a mounting bracket 9 fixedly installed at one end of the worktable 1 near the upper protruding plate 4. A guide sleeve 10 is welded to the front end of the mounting bracket 9. A front limiting plate 20 is axially slidably connected to the inner wall of the guide sleeve 10. The wall has a limiting groove 24 extending along the length of the front limiting plate 20. The outer wall of the front limiting plate 20 is integrally formed with a limiting block 25 that is slidably connected to the limiting groove 24. In the reset state, the end of the front limiting plate 20 located outside the guide sleeve 10 is integrally formed with a pressure-bearing inclined surface 21. A second spring 23 is fixedly installed between the end of the front limiting plate 20 located inside the guide sleeve 10 and the closed end inside the guide sleeve 10. The top of the docking plate 16 has an open structure. The top of the front limiting plate 20 is flush with the top of the guide sleeve 10. An upwardly protruding handle 22 is fixedly installed on the top of the front limiting plate 20.
[0026] In this embodiment: when the lower mold 3 is pulled outward, the front limit plate 20 is pulled to slide by holding the handle 22. The front limit plate 20 drives the limit block 25 to slide along the limit groove 24. During this process, the second spring 23 is compressed until the front limit plate 20 is misaligned with the docking plate 16. At this time, the lower mold 3 can be rotated to open.
[0027] When the lower mold 3 is pushed to rotate inward and reset, the arc-shaped end of the mating plate 16 presses against the pressure slope 21. At this time, the front limit plate 20 slides under the pressing force. At this time, the second spring 23 resets until the mating plate 16 contacts the rear limit plate 15. At this time, the front limit plate 20 resets under the pushing force of the second spring 23, limiting the front end of the mating plate 16 and restricting the mating plate 16 to the current position.
[0028] Please refer to this carefully. Figure 3 and Figure 4 The adjustment mechanism includes a groove 17 recessed upward at the bottom of the lower mold 3. A screw 19 extending through to the lower rotating end of the lower mold 3 is rotatably mounted on the inner wall of the groove 17. A handle is coaxially mounted at one end of the screw 19 below the rotating end of the lower mold 3. A slider 18 is threadedly connected to the outer wall of the screw 19 and slidably connected to the groove 17. An adjustment plate 11 slidably connected to the outer wall of the lower mold 3 is fixedly mounted at the bottom end of the slider 18.
[0029] In this embodiment: when punching bending parts 12 of different lengths, the handle is turned according to the length of the bending part 12. The handle drives the screw 19 to rotate. At this time, the slider 18 moves along the slide groove 17 under the internal thread. The slider 18 can drive the adjusting plate 11 to move along the length direction of the lower die 3, so as to restrict the ends of different bending parts 12, thereby facilitating punching.
[0030] 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. A punching device for processing a security door, comprising a worktable (1), characterized in that, A stamping mechanism is installed at the top of the workbench (1). One end of the workbench (1) is integrally formed with a forward-protruding rotating plate (2). The other end of the workbench (1) is integrally formed with a forward-protruding limiting mechanism. A lower die (3) is rotatably installed at the center of the rotating plate (2) via a rotating ring (13). A bending part (12) is sleeved on the outer wall of the lower die (3). An adjustment mechanism extending to the outer wall of the lower die (3) is provided inside the lower die (3). The adjustment mechanism is used to limit one end of the bending part (12). A docking plate (16) protruding outward is integrally formed at the free end of the lower die (3). The limiting mechanism is used to limit the docking plate (16) when it is rotated to the reset state.
2. The punching device for processing a security door according to claim 1, wherein The stamping mechanism includes a guide shaft (5) fixedly installed on the top of the worktable (1). A sliding plate (6) is slidably installed on the outer wall of the guide shaft (5). A stamping cutter (8) is installed at the bottom of one end of the sliding plate (6). Two No. 1 springs (7) directly abut against the top of the worktable (1). The two No. 1 springs (7) are sleeved on the outer periphery of the two guide shafts (5).
3. The punching device for processing a security door according to claim 2, characterized in that, The limiting mechanism includes an upper protruding plate (4) and a lower protruding plate (14) integrally formed on one end of the worktable (1) and protruding forward. A rear limiting plate (15) is welded between the top end of the lower protruding plate (14) and the bottom end of the upper protruding plate (4). The rear limiting plate (15) is used to limit the docking plate (16). The thickness of the cavity between the upper protruding plate (4) and the lower protruding plate (14) is equal to the thickness of the docking plate (16).
4. The punching device for processing a security door according to claim 3, characterized in that, The limiting mechanism also includes a mounting bracket (9) fixedly installed on the workbench (1) near the upper protruding plate (4). A guide sleeve (10) is welded to the front end of the mounting bracket (9). A front limiting plate (20) is axially slidably connected to the inner wall of the guide sleeve (10). A limiting groove (24) extending along the length direction of the front limiting plate (20) is opened on the inner wall of the guide sleeve (10). A limiting block (25) slidably connected to the limiting groove (24) is integrally formed on the outer wall of the front limiting plate (20). A pressure inclined surface (21) is integrally formed on the end of the front limiting plate (20) outside the guide sleeve (10) in the reset state. A second spring (23) is fixedly installed between the end of the front limiting plate (20) inside the guide sleeve (10) and the closed end inside the guide sleeve (10).
5. The punching device for processing a security door according to claim 1, wherein The adjustment mechanism includes a groove (17) recessed upward at the bottom of the lower mold (3). A screw (19) extending through to the lower rotating end of the lower mold (3) is rotatably mounted on the inner wall of the groove (17). A handle is coaxially mounted at one end of the screw (19) below the rotating end of the lower mold (3). A slider (18) is threadedly connected to the outer wall of the screw (19) and slidably connected to the groove (17). An adjustment plate (11) slidably connected to the outer wall of the lower mold (3) is fixedly mounted at the bottom end of the slider (18).
6. The punching device for processing a security door according to claim 4, characterized in that, The top of the docking plate (16) is open, the top of the front limiting plate (20) is flush with the top of the guide sleeve (10), and the top of the front limiting plate (20) is fixedly fitted with an upwardly protruding handle (22).