Precise hole drawing stamping die
By designing a combination of protective sleeve and limit spring in the hole stamping mold, the problem of hole head being susceptible to impact caused by tilting, improving the hole accuracy and product precision, making it easy to use.
Patent Information
- Application Number
- CN202422040737.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-22
- Publication Date
- 2025-05-06
- Estimated Expiration
- 2034-08-22
Smart Images
Figure CN222830496U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of hole punching and stamping, in particular to a precision hole punching and stamping die. Background Art
[0002] A stamping die is a manufacturing device that uses the pressure of a punch press to act on the die to change the shape of the metal placed in the die. When punching holes in the stamping material, the thicker and harder the material, the more difficult it is to punch holes, which will also have a great impact on the quality of the stamping product.
[0003] The existing punching punching die lacks protection for the punching head. The punching head is easily impacted by the outside world and may have a slight tilt that is difficult to discern with the naked eye, thereby affecting the accuracy of the punching, and further affecting the precision of the product, reducing work efficiency and being inconvenient for staff to use. Utility Model Content
[0004] In view of the deficiencies in the prior art, the utility model provides a precision hole punching die to solve the problem mentioned in the above background technology that the existing hole punching die lacks protection for the hole punching head, the hole punching head is easily impacted by the outside world and has a slight tilt that is difficult to distinguish by the naked eye, thereby affecting the accuracy of the hole punching, and further affecting the precision of the product, reducing work efficiency and inconvenience for staff to use.
[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a precision punching hole stamping mold, comprising a base, a mounting base is fixedly connected to the middle side of the top of the base, and limiting grooves are provided on both sides of the inner wall of the mounting base, and the bottom of the inner side of the mounting base is fixedly connected to a limiting spring, the top of the limiting spring is fixedly connected to a protective sleeve, a through hole is provided inside the protective sleeve, and limiting blocks are fixedly connected to the bottom two sides of the protective sleeve, the middle side of the bottom of the mounting base is fixedly connected to a connecting seat, a mounting hole is provided inside the connecting seat, a punching head is provided inside the mounting hole, and a thread is provided on the lower side of the surface of the punching head, the top of the base is fixedly connected to connecting rods all around, the tops of the four connecting rods are fixedly connected to a top plate, the top of the top plate is fixedly connected to a hydraulic rod, the bottom of the hydraulic rod is fixedly connected to a mounting plate, the mounting plate is fixedly connected to limiting rings all around, the bottom of the mounting plate is fixedly connected to a lower press seat, and a mold hole is provided inside the lower press seat.
[0006] Preferably, the positions of the two limit blocks correspond to the positions of the two limit slots, the shapes and sizes of the two limit blocks match the shapes and sizes of the two limit slots, and the two limit blocks fit tightly against the inner walls of the two limit slots.
[0007] Preferably, the diameter of the protective sleeve is the same as the diameter of the inner wall of the mounting seat, and the diameter of the through hole is the same as the diameter of the connecting seat.
[0008] By adopting the above technical solution, a protective cover, a mounting seat, a through hole, etc. are arranged in conjunction with a limit spring. The limit spring will push the protective cover to move upward, and the protective cover will then completely cover the hole-drawing head inside the through hole, thereby preventing the hole-drawing head from direct contact with the outside world and preventing the hole-drawing head from being tilted by external impact, thereby improving precision and facilitating use by staff.
[0009] Preferably, the number of the limiting rings is four, and the four limiting rings are slidably connected to the surfaces of the four connecting rods respectively, and the distances between the four limiting rings are the same.
[0010] By adopting the above technical solution, a limit ring, a connecting rod and the like are set for use in combination, and the limit ring slides on the surface of the connecting rod, thereby limiting the lateral displacement of the mounting plate, avoiding slight deviations when the pressure seat is pressed down, improving the accuracy of the hole drawing, and making it convenient for the staff to use.
[0011] Preferably, the pressing seat is moved to be directly above the protective cover, the position of the die hole corresponds to the position of the hole-drawing head, and the diameter of the die hole is larger than the diameter of the hole-drawing head.
[0012] Preferably, the lower side of the hydraulic rod passes through the inner wall of the top plate and extends to the lower side of the bottom of the top plate.
[0013] Compared with the prior art, the beneficial effects of the utility model are:
[0014] 1. The precision punching punching die is used in conjunction with a limit spring by setting a protective cover, a mounting seat, a through hole, etc. The limit spring will push the protective cover to move upward, and the protective cover will then cover the punching head inside the through hole to avoid direct contact between the punching head and the outside world, and prevent the punching head from being tilted by external impact, thereby improving precision and facilitating use by staff.
[0015] 2. The precision punching punching die is used in combination with a punching head, a thread, a connecting seat, a mounting hole, etc. The threaded side of the punching head is aligned with the mounting hole on the connecting seat. The thread is driven to rotate by rotating the punching head and then screwed into the inside of the connecting seat, thereby quickly completing disassembly and installation. The operation is simple and convenient for staff to use. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 This is a schematic diagram of the front view structure of the utility model;
[0017] Figure 2 This is a schematic diagram of the positive cross-section structure of the utility model;
[0018] Figure 3 This is a schematic diagram of the structure of the mounting plate of the utility model when viewed from above;
[0019] Figure 4 This is a schematic diagram of the cross-sectional structure of the mounting seat of the utility model;
[0020] Figure 5 This is a schematic diagram of the structure of the connecting seat of the utility model;
[0021] Figure 6 This is a schematic diagram of the structure of the protective cover of the utility model;
[0022] Figure 7 This is a schematic diagram of the structure of the hole-drawing head of the utility model.
[0023] In the figure: 1. base; 2. mounting seat; 3. limiting groove; 4. limiting spring; 5. connecting seat; 6. mounting hole; 7. protective cover; 8. limiting block; 9. through hole; 10. punching head; 11. thread; 12. connecting rod; 13. top plate; 14. hydraulic rod; 15. mounting plate; 16. limiting ring; 17. lower pressure seat; 18. die hole. DETAILED DESCRIPTION
[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0025] Embodiment 1:
[0026] Please refer to Figures 1-6, a precision hole punching die includes a base 1, a mounting seat 2 is fixedly connected to the middle side of the top of the base 1, limiting grooves 3 are provided on both sides of the inner wall of the mounting seat 2, a limiting spring 4 is fixedly connected to the bottom of the inner side of the mounting seat 2, a protective sleeve 7 is fixedly connected to the top of the limiting spring 4, a through hole 9 is provided inside the protective sleeve 7, limiting blocks 8 are fixedly connected to both sides of the bottom of the protective sleeve 7, the positions of the two limiting blocks 8 correspond to the positions of the two limiting grooves 3, the shapes and sizes of the two limiting blocks 8 are adapted to the shapes and sizes of the two limiting grooves 3, and the two limiting blocks 8 are tightly fitted to the inner walls of the two limiting grooves 3, a connecting seat 5 is fixedly connected to the middle side of the bottom of the mounting seat 2, the diameter of the protective sleeve 7 is the same as the inner wall diameter of the mounting seat 2, and the diameter of the through hole 9 is The diameter is the same as the diameter of the connecting seat 5, the connecting seat 5 is provided with a mounting hole 6 inside, the mounting hole 6 is provided with a hole-drawing head 10, the lower side of the surface of the hole-drawing head 10 is provided with a thread 11, the top of the base 1 is fixedly connected with connecting rods 12, the tops of the four connecting rods 12 are fixedly connected with a top plate 13, the top of the top plate 13 is fixedly connected with a hydraulic rod 14, the bottom of the hydraulic rod 14 is fixedly connected with a mounting plate 15, the mounting plate 15 is fixedly connected with a limiting ring 16 around, the bottom of the mounting plate 15 is fixedly connected with a lower pressing seat 17, the lower pressing seat 17 is provided with a mold hole 18 inside, the lower pressing seat 17 is directly above the displacement protection sleeve 7, the position of the mold hole 18 corresponds to the position of the hole-drawing head 10, and the diameter of the mold hole 18 is larger than the diameter of the hole-drawing head 10.
[0027] Working principle: When in use, the staff places the part to be punched on the top of the protective cover 7 and starts the hydraulic rod 14, which in turn pushes the mounting plate 15 to move downward. While the mounting plate 15 moves downward, it drives the limit ring 16 to move downward along the connecting rod 12, thereby limiting the lateral movement of the mounting plate 15. The mounting plate 15 moves downward and pushes the lower pressure seat 17 to move downward and squeeze the protective cover 7. The protective cover 7 moves downward and shrinks into the mounting seat 2 to expose the punching head 10, which then squeezes the part to punch a hole. When the punching head 10 reaches the inside of the mold hole 18, the punching work is completed. When the part processing is completed, the limit spring 4 will push the protective cover 7 upward again, and the protective cover 7 will then cover the punching head 10 inside the through hole 9 to avoid direct contact between the punching head 10 and the outside world, and prevent the punching head 10 from being tilted by external impact, thereby improving the precision and facilitating the use of the staff.
[0028] Compared with the related art, the precision punching die provided by the utility model has the following beneficial effects: by setting a protective cover 7, a mounting seat 2, a through hole 9, etc. for use with a limit spring 4, the limit spring 4 will push the protective cover 7 to move upward, and the protective cover 7 will then cover the punching head 10 inside the through hole 9, avoiding direct contact between the punching head 10 and the outside world, preventing the punching head 10 from being tilted by external impact, thereby improving precision and facilitating use by staff.
[0029] Embodiment 2:
[0030] Please refer to Figures 1-7. A mounting seat 2 is fixedly connected to the middle side of the top of the base 1, and limiting grooves 3 are provided on both sides of the inner wall of the mounting seat 2. A limiting spring 4 is fixedly connected to the bottom of the inner side of the mounting seat 2, and a protective cover 7 is fixedly connected to the top of the limiting spring 4. A through hole 9 is provided inside the protective cover 7, and limiting blocks 8 are fixedly connected to both sides of the bottom of the protective cover 7. The positions of the two limiting blocks 8 correspond to the positions of the two limiting grooves 3, and the shapes and sizes of the two limiting blocks 8 are adapted to the shapes and sizes of the two limiting grooves 3, and the two limiting blocks 8 are tightly fitted to the inner walls of the two limiting grooves 3. A connecting seat 5 is fixedly connected to the middle side of the bottom of the mounting seat 2, and a mounting hole 6 is provided inside the connecting seat 5, and a hole-drawing head 10 is provided inside the mounting hole 6, and a thread 11 is provided on the lower side of the surface of the hole-drawing head 10.
[0031] Working principle: When the hole-drawing head 10 is damaged during hole-drawing, the staff can rotate the hole-drawing head 10 to screw it out of the connecting seat 5. At this time, the staff takes out a new hole-drawing head 10, and aligns the side with the thread 11 with the mounting hole 6 on the connecting seat 5. By rotating the hole-drawing head 10, the thread 11 is driven to rotate and then screwed into the inside of the connecting seat 5, thereby completing the installation. The operation is simple and convenient for the staff to use.
[0032] Compared with the related art, the precision punching die provided by the utility model has the following beneficial effects: by setting a punching head 10, a thread 11, a connecting seat 5, a mounting hole 6, etc. for use in combination, aligning the side of the punching head 10 with the thread 11 with the mounting hole 6 on the connecting seat 5, and rotating the punching head 10 to drive the thread 11 to rotate and then screw it into the inside of the connecting seat 5, thereby quickly completing disassembly and installation, with simple operation and convenient use by staff.
[0033] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A precision punching die, comprising a base (1), characterized in that: A mounting seat (2) is fixedly connected to the middle side of the top of the base (1), and limiting grooves (3) are provided on both sides of the inner wall of the mounting seat (2). A limiting spring (4) is fixedly connected to the bottom of the inner side of the mounting seat (2), and a protective sleeve (7) is fixedly connected to the top of the limiting spring (4). A through hole (9) is provided inside the protective sleeve (7), and limiting blocks (8) are fixedly connected to both sides of the bottom of the protective sleeve (7). A connecting seat (5) is fixedly connected to the middle side of the bottom of the mounting seat (2), and a mounting hole (6) is provided inside the connecting seat (5), and a draw hole is provided inside the mounting hole (6). The head (10) is provided with a thread (11) on the lower side of the surface of the hole-drawing head (10); the top of the base (1) is fixedly connected with connecting rods (12) on all sides; the tops of the four connecting rods (12) are fixedly connected with a top plate (13); the top of the top plate (13) is fixedly connected with a hydraulic rod (14); the bottom of the hydraulic rod (14) is fixedly connected with a mounting plate (15); the mounting plate (15) is fixedly connected with a limiting ring (16) on all sides; the bottom of the mounting plate (15) is fixedly connected with a lower pressing seat (17); a mold hole (18) is provided inside the lower pressing seat (17).
2. A precision punching die according to claim 1, characterized in that: The positions of the two limit blocks (8) correspond to the positions of the two limit grooves (3), the shapes and sizes of the two limit blocks (8) match the shapes and sizes of the two limit grooves (3), and the two limit blocks (8) fit tightly against the inner walls of the two limit grooves (3).
3. The precision punching die according to claim 1, characterized in that: The diameter of the protective sleeve (7) is the same as the diameter of the inner wall of the mounting seat (2), and the diameter of the through hole (9) is the same as the diameter of the connecting seat (5).
4. The precision punching die according to claim 1, characterized in that: The number of the limiting rings (16) is four, and the four limiting rings (16) are respectively slidably connected to the surfaces of the four connecting rods (12), and the spacing between the four limiting rings (16) is the same.
5. The precision punching die according to claim 1, characterized in that: The lower pressing seat (17) is displaced directly above the protective sleeve (7), the position of the die hole (18) corresponds to the position of the punching head (10), and the diameter of the die hole (18) is greater than the diameter of the punching head (10).
6. The precision punching die according to claim 1, characterized in that: The lower side of the hydraulic rod (14) penetrates the inner wall of the top plate (13) and extends to the lower side of the bottom of the top plate (13).