Precise punching die for ultrathin metal sheet

Abstract

The precision punching die for the ultrathin metal sheet belongs to the technical field of punching dies and comprises a box body with one side open, a circular hole is formed in the center of the inner bottom wall of the box body, a lower die is rotatably arranged in the hole, sliding grooves are formed in the positions, on the two sides of the lower die, of the bottom wall of the box body, and the sliding grooves are communicated with the circular hole. A double-end lead screw is rotationally arranged in the sliding groove, the two ends of the double-end lead screw are sleeved with clamping blocks in a threaded mode, and a cavity is formed in one side in the bottom wall of the box body. According to the precise punching die for the ultrathin metal sheet, the two double-end lead screws are driven to rotate synchronously through the synchronous assembly, then the four clamping blocks are driven to move towards the lower die, so that the metal sheet is fixed, meanwhile, before the punch works, the pressing blocks are attached to and tightly press the metal sheet in one step, the fixing stability is further improved, and the precision of punching is improved. And compared with an existing device, the problems that manual control is needed in the cutting process, and use is troublesome are solved, and the punching efficiency is improved.

Description

Technical Field

[0001] The present application belongs to the technical field of stamping dies, and in particular to a precision punching die for ultra-thin metal sheets. Background Art

[0002] Precision punching die technology is the key to achieve high-precision metal processing in modern manufacturing, which involves die design, material selection, processing technology, etc. With the advancement of material science, automation technology and the improvement of environmental protection requirements, precision punching die is developing towards high efficiency, high precision, intelligence and environmental protection.

[0003] The existing precision punching die for ultra-thin metal sheets is difficult to fix the ultra-thin metal sheets during use, which is inconvenient for cutting and cannot guarantee the cutting accuracy. The cutting process requires manual control, which is troublesome to use.

[0004] To this end, we proposed a precision punching die for ultra-thin metal sheets to solve the above problems. Utility Model Content

[0005] The purpose of the present application is to solve the problem in the prior art that manual manipulation and fixation of metal sheets are required, which is troublesome to use, and to propose a precision punching die for ultra-thin metal sheets.

[0006] In order to achieve the above purpose, this application adopts the following technical solutions:

[0007] The cam is provided with a plurality of sliding grooves on the bottom walls of the box body on both sides of the lower mold, and a double-headed screw is rotatably provided in the sliding groove, and clamping blocks are provided with threaded sleeves at both ends of the double-headed screw. A cavity is provided on one side of the bottom wall of the box body, and the two double-headed screws extend into the cavity, and a synchronization component for driving the two double-headed screws to rotate synchronously is provided in the cavity. A cylinder is fixedly installed on the top wall of the box body, and a horizontal plate is fixedly connected to the telescopic end of the cylinder, a punch is fixedly connected at the center of the bottom surface of the horizontal plate, and sliding rods are slidably connected to the horizontal plates on both sides of the punch, a pressure block is fixedly connected to the bottom end of the sliding rod, and a fixed plate is fixedly connected to the top end, and a spring sleeved on the outside of the sliding rod is fixedly connected between the fixed plate and the horizontal plate.

[0008] Preferably, the synchronization component includes a worm rotatably arranged in a cavity, a motor for driving the worm to rotate is fixedly mounted on one side of the cavity, and a worm wheel for meshing with the worm is fixedly sleeved on one end of the worm.

[0009] Preferably, a rotating block is rotatably provided at the lower end of the circular hole, a motor for driving the rotating block is installed on the bottom surface of the box body, a plurality of connecting holes are opened on the top surface of the rotating block, and a connecting column inserted into the connecting hole is fixedly connected to the bottom surface of the lower mold.

[0010] Preferably, a plurality of punching holes are formed in a circular array on the top surface of the lower die, and the punch is located directly above one of the punching holes.

[0011] Preferably, the clamping block is L-shaped, and the bottom surface of the horizontal section of the clamping block is at the same height as the top surface of the lower mold.

[0012] Preferably, when the spring is in an initial state, the bottom surface of the pressing block is lower than the punch.

[0013] To sum up, the technical effects and advantages of the present application are as follows: compared with the existing devices, the precision punching and cutting die for ultra-thin metal sheets drives the two double-headed screws to rotate synchronously through the synchronization component, and then drives the four clamping blocks to move toward the lower die, so as to fix the metal sheet. At the same time, before the punch works, the pressure block first adheres to and presses the metal sheet, further improving the stability of the fixation. Compared with the existing devices, it avoids the need for manual control during the cutting process, which is more troublesome to use, and improves the punching and cutting efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the structure of this application;

[0015] Figure 2 This is a schematic diagram of the cross-sectional structure of this application;

[0016] Figure 3 for Figure 1 Enlarged view of point A in the middle;

[0017] Figure 4 It is a cross-sectional top view of the cavity;

[0018] Figure 5 This is a cross-sectional structural diagram of the rotating block.

[0019] In the figure: 1. box body; 2. circular hole; 3. lower mold; 4. sliding groove; 5. double-headed screw; 6. clamping block; 7. cavity; 8. cylinder; 9. horizontal plate; 10. punch; 11. sliding rod; 12. pressure block; 13. fixed plate; 14. spring; 15. worm; 16. motor; 17. worm wheel; 18. rotating block; 19. motor; 20. connecting column; 21. punching hole. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments.

[0021] Reference Figure 1-3 A precision punching die for ultra-thin metal sheets comprises a box body 1 with one side open, a circular hole 2 is provided at the center of the bottom wall of the box body 1, and a lower die 3 is rotatably arranged in the hole, sliding grooves 4 are provided on the bottom walls of the box body 1 on both sides of the lower die 3, and a double-headed lead screw 5 is rotatably arranged in the sliding groove 4, and a clamping block 6 is provided on the threaded sleeves at both ends of the double-headed lead screw 5, a cavity 7 is provided on one side of the bottom wall of the box body 1, two double-headed lead screws 5 are extended into the cavity 7, and a synchronous component for driving the two double-headed lead screws 5 to rotate synchronously is provided in the cavity 7, a cylinder 8 is fixedly installed on the top wall of the box body 1, and a horizontal plate 9 is fixedly connected to the telescopic end of the cylinder 8, and a punch 10 is fixedly connected to the center of the bottom surface of the horizontal plate 9 A sliding rod 11 is slidably connected to the horizontal plates 9 on both sides of the punch 10, a pressing block 12 is fixedly connected to the bottom end of the sliding rod 11, and a fixing plate 13 is fixedly connected to the top end. A spring 14 sleeved on the outside of the sliding rod 11 is fixedly connected between the fixing plate 13 and the horizontal plate 9. The two double-headed screws 5 are driven to rotate synchronously through the synchronization component, and then the four clamping blocks 6 are driven to move toward the lower mold 3, so as to fix the metal sheet. At the same time, before the punch 10 works, the pressing block 12 first adheres to and presses the metal sheet, further improving the stability of the fixation. Compared with the existing device, it avoids the need for manual control during the cutting process, which is more troublesome to use, and improves the punching efficiency.

[0022] Reference Figure 2 , Figure 4 The synchronization component includes a worm 15 that rotates in the cavity 7, a motor 16 that drives the worm 15 to rotate is fixedly installed on one side of the cavity 7, and a worm wheel 17 that meshes with the worm 15 is fixedly sleeved on one end of the worm 15. The worm 15 and the worm wheel 17 are used to simultaneously control the synchronous rotation of the two double-headed screws 5. In addition, due to the reduction transmission characteristics of the worm wheel 17 and the worm 15, more precise adjustments can be made to prevent the clamp 6 from crushing the metal sheet.

[0023] Reference Figure 5 A rotating block 18 is rotatably provided at the lower end of the circular hole 2, a motor 19 for driving the rotating block 18 is installed on the bottom surface of the box body 1, a plurality of connecting holes are provided on the top surface of the rotating block 18, a connecting column 20 inserted into the connecting hole is fixedly connected to the bottom surface of the lower mold 3, and the lower mold 3 can be easily replaced through the connecting column 20, thereby improving the practicality of the device, a plurality of punching holes 21 are provided in a circular array on the top surface of the lower mold 3, and the punch 10 is located directly above one of the punching holes 21, and the plurality of punching holes 21 can be easily replaced.

[0024] Reference Figure 1-3The clamp block 6 is L-shaped, so that one end of the clamp block 6 can extend above the lower mold 3, which is convenient for fixing the metal sheet on the lower mold 3. The bottom surface of the horizontal section of the clamp block 6 is at the same height as the top surface of the lower mold 3, thereby ensuring the fixing effect of the metal sheet.

[0025] When the spring 14 is in the initial state, the bottom surface of the pressing block 12 is lower than the punch 10 , so that the pressing block 12 can assist in fixing the metal sheet before the punch 10 works.

[0026] Working principle:

[0027] When using the precision punching die for ultra-thin metal sheets, the motor 19 is turned on to drive the rotating block 18 and the lower die 3 to rotate until the required hole position reaches directly below the punch 10. At this time, the metal sheet is placed on the lower die 3, and the motor 16 is turned on to drive the worm 15 to rotate, and the worm gear 17 is used to drive the two double-headed screws 5 to rotate until the four clamping blocks 6 fix the metal sheet. At this time, the cylinder 8 is turned on to drive the horizontal plate 9 to move downward until the pressure block 12 further fixes the metal sheet. At this time, the cylinder 8 continues to drive the horizontal plate 9 to move downward, and the precision punching of the metal sheet can be achieved. The above is the entire use process of the precision punching die for ultra-thin metal sheets.

[0028] The above is only a preferred specific implementation manner of the present application, but the protection scope of the present application is not limited thereto. Any technician familiar with the technical field can make equivalent substitutions or changes within the technical scope disclosed in the present application according to the technical solution and utility model concept of the present application, which should be covered by the protection scope of the present application.

Claims

1. A precision punching die for ultra-thin metal sheets, comprising a box body (1) with one side open, characterized in that: A circular hole (2) is provided at the center of the bottom wall of the box body (1), and a lower mold (3) is rotatably provided in the hole. The bottom walls of the box body (1) on both sides of the lower mold (3) are provided with sliding grooves (4), and a double-headed screw (5) is rotatably provided in the sliding grooves (4), and a clamping block (6) is provided in threaded sleeves at both ends of the double-headed screw (5). A cavity (7) is provided on one side of the bottom wall of the box body (1), and the two double-headed screws (5) extend into the cavity (7), and a synchronization group for driving the two double-headed screws (5) to rotate synchronously is provided in the cavity (7). A cylinder (8) is fixedly installed on the top wall of the box body (1), and a horizontal plate (9) is fixedly connected to the telescopic end of the cylinder (8), a punch (10) is fixedly connected to the center of the bottom surface of the horizontal plate (9), sliding rods (11) are slidably connected to the horizontal plates (9) on both sides of the punch (10), a pressure block (12) is fixedly connected to the bottom end of the sliding rod (11), and a fixed plate (13) is fixedly connected to the top end, and a spring (14) sleeved on the outside of the sliding rod (11) is fixedly connected between the fixed plate (13) and the horizontal plate (9).

2. The precision punching die for ultra-thin metal sheets according to claim 1, characterized in that: The synchronous assembly comprises a worm (15) rotatably arranged in a cavity (7), a motor (16) for driving the worm (15) to rotate is fixedly mounted on one side of the cavity (7), and a worm wheel (17) for meshing with the worm (15) is fixedly sleeved on one end of the worm (15).

3. The precision punching die for ultra-thin metal sheets according to claim 1, characterized in that: A rotating block (18) is rotatably provided at the lower end of the circular hole (2); a motor (19) for driving the rotating block (18) is installed on the bottom surface of the box body (1); a plurality of connecting holes are provided on the top surface of the rotating block (18); and a connecting column (20) inserted into the connecting hole is fixedly connected to the bottom surface of the lower mold (3).

4. The precision punching die for ultra-thin metal sheets according to claim 3, characterized in that: The top surface of the lower die (3) is provided with a plurality of punching holes (21) in a circumferential array, and the punch (10) is located directly above one of the punching holes (21).

5. The precision punching die for ultra-thin metal sheets according to claim 4, characterized in that: The clamping block (6) is L-shaped, and the bottom surface of the horizontal section of the clamping block (6) is at the same height as the top surface of the lower mold (3).

6. The precision punching die for ultra-thin metal sheets according to claim 1, characterized in that: When the spring (14) is in an initial state, the bottom surface of the pressing block (12) is lower than the punch (10).

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