Multifunctional punch for precise punching

Abstract

The multifunctional punch comprises a punch body, a lantern ring is arranged at the top of the punch body, a top ring is arranged at the top of the lantern ring, a vertical rod is fixedly connected to the bottom end of the top ring, a bottom ring is fixedly connected to the bottom end of the vertical rod, a clamping ring is arranged on the inner side of the bottom ring, and a clamping groove is formed in the inner side of the clamping ring. The inner side of the clamping ring is movably connected with a brush strip, the bottom end of the lantern ring is movably connected with a compressed air bag, an oil outlet hole is formed in the inner side wall of the compressed air bag, an annular pipe is embedded in the lantern ring, and an oil injection hole is formed in one side of the annular pipe. By arranging a series of structures, rapid cleaning of the punch is achieved, so that frequent manual cleaning of the surface of the punch is avoided, the working intensity of operators is reduced, smearing of lubricating oil is achieved, the time needed for smearing the lubricating oil is saved, and meanwhile unnecessary waste is not likely to be caused when the lubricating oil is smeared.

Description

Technical Field

[0001] The utility model relates to the technical field of stamping punches, in particular to a multifunctional punch for precision stamping. Background Technique

[0002] A punch refers to a metal part on a stamping die in a mechanical tool, also called a punch rod, punch pin or punch. It is installed on the stamping die to connect for blanking, stamping and punching operations, so that the processed material is separated or plastically deformed, thereby obtaining the required finished or semi-finished precision device.

[0003] However, before each stamping of the existing punches for precision stamping, it is usually necessary to manually clean the surface of the punch first to reduce the interference of impurities and obstacles. Due to the high frequency of stamping of the punch, the cleaning frequency before each stamping also becomes higher, increasing the working intensity of the operator; secondly, after the punch is used and cleaned, it is necessary to apply lubricating oil to the long handle of the punch to reduce the friction and wear on the surface of the punch. When applying lubricating oil to the long handle of the punch, it is also necessary to manually apply the lubricating oil on the surface of the long handle, resulting in a more troublesome and time-consuming process of applying lubricating oil to the punch, and at the same time, it is easy to cause waste of lubricating oil. Content of the Utility Model

[0004] The purpose of the utility model is to provide a multifunctional punch for precision stamping to solve the problems raised in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A multifunctional punch for precision stamping, including a punch body, a collar is provided at the top of the punch body, a top ring is provided at the top of the collar, a vertical rod is fixedly connected to the bottom end of the top ring, a bottom ring is fixedly connected to the bottom end of the vertical rod, a clamping ring is provided inside the bottom ring, a brush strip is movably connected inside the clamping ring, a compression airbag is movably connected to the bottom end of the collar, an oil outlet hole is opened on the inner side wall of the compression airbag, an annular pipe is embedded inside the collar, an oil injection hole is opened on one side of the annular pipe, and a pendulum needle is movably connected to one side wall of the collar.

[0006] Preferably, a through hole is opened at the top end of the collar, and the vertical rod is movably inserted through the collar through the through hole.

[0007] Preferably, the top ring is movably connected to the collar through the vertical rod, and the bottom ring is movably connected to the compression airbag through the vertical rod.

[0008] Preferably, a first thread is opened on the outer wall of the punch body, and a second thread is opened on the inner wall of the collar.

[0009] Preferably, the first thread is engaged with the second thread, and the collar is movably threadedly connected to the punch body through the second thread.

[0010] Preferably, a first round hole is formed in the outer wall of the bottom ring, and a second round hole is formed in the outer wall of the clamping ring.

[0011] Preferably, a pin is movably inserted through the inner sides of the first round hole and the second round hole. The clamping ring is movably connected to the bottom ring through the pin, and the brush strip is movably connected to the punch body through the bottom ring.

[0012] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0013] For the multifunctional punch for precision stamping, through the top ring, bottom ring, vertical rod, clamping ring and brush strip, when the punch is fixed by the upper die sleeve and inserted into the die, the brush strip on the clamping ring will contact the top of the die prior to the bottom end of the punch, so that the punch will pass through the brush strip and be cleaned before being inserted into the die, realizing rapid cleaning of the punch, thereby avoiding frequent manual cleaning of the surface of the punch and reducing the working intensity of the operator.

[0014] For the multifunctional punch for precision stamping, through the collar, compression airbag, annular pipe and oil outlet hole, when the bottom ring moves towards the collar, the compression airbag at the bottom end of the collar will be squeezed by the bottom ring, so that the lubricating oil in the compression airbag can be sprayed from the oil outlet hole onto the outer surface of the punch. Then, the lubricating oil droplets will slide vertically downward along the surface of the punch, realizing the application of lubricating oil, thus saving the time required for applying lubricating oil, and the volume of the lubricating oil sprayed after a single extrusion of the compression airbag is controllable, making it difficult to cause unnecessary waste when applying lubricating oil. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0016] Figure 2 is a schematic diagram of the top ring and bottom ring structures of the present utility model;

[0017] Figure 3 is a schematic diagram of the compression airbag and collar structures of the present utility model;

[0018] Figure 4 is a schematic diagram of the pin and clamping ring structures of the present utility model;

[0019] Figure 5 is a schematic diagram of the vertical rod and collar structures of the present utility model;

[0020] Figure 6 is a schematic diagram of the annular pipe and pendulum needle structures of the present utility model.

[0021] In the figure: 1. Punch body; 2. Top ring; 3. Sleeve ring; 4. Oil injection hole; 5. Compression airbag; 6. Vertical rod; 7. Bottom ring; 8. Pin; 9. Snap ring; 10. Brush strip; 11. Oscillating needle; 12. First thread; 13. Through hole; 14. Second thread; 15. Oil outlet hole; 16. First round hole; 17. Second round hole; 18. Annular pipe. Detailed implementation manner

[0022] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0023] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0024] In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication of two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0025] Such as Figures 1 to 6As shown, the multifunctional punch for precision stamping in this embodiment includes a punch body 1. A mounting hole for docking and mounting with an upper die sleeve is provided on the top of the punch body 1, so that the punch body 1 can be fixed on the upper die sleeve. A collar 3 is provided on the top of the punch body 1. The collar 3 and the punch body 1 are detachable structures, and the collar 3 has the same outer diameter as the top ring 2 and the bottom ring 7. At the same time, the top ring 2, the collar 3 and the bottom ring 7 are located on the same vertical line. A top ring 2 is provided on the top of the collar 3. The top ring 2 fits with the top of the collar 3 in the initial state. The bottom end of the top ring 2 is fixedly connected with a vertical rod 6. The function of the vertical rod 6 is to The top ring 2 can be linked with the bottom ring 7. The bottom end of the vertical rod 6 is fixedly connected with the bottom ring 7. The initial state of the bottom ring 7 is flush with the bottom end of the punch body 1. The function is to clean the surface of the punch body 1 before the punch body 1 is punched into the mold, so that impurities on the punch body 1 are not easily punched into the mold at the same time. A clamping ring 9 is provided on the inner side of the bottom ring 7. The function of the clamping ring 9 is to reinforce the brush strip 10 so that the brush strip 10 can fit the end of the punch body 1. The inner side of the clamping ring 9 is movably connected with the brush strip 10. There are several brush strips 10, which are wrapped around the inner side of the clamping ring 9. The function of 10 is to wipe and clean the surface of the punch body 1 to reduce impurities and obstacles on the punch surface. The bottom end of the ring 3 is movably connected with a compression airbag 5. There are four compression airbags 5, and the interiors of the four compression airbags 5 are all hollow structures, so that the compression airbags 5 have enough space to fill the lubricating oil, so that the lubricating oil can be temporarily retained in the compression airbags 5, so as to facilitate the subsequent spraying of the lubricating oil when the compression airbags 5 are squeezed. The inner wall of the compression airbag 5 is provided with an oil outlet hole 15. The function of the oil outlet hole 15 is to spray the lubricating oil to the surface of the punch body 1 when the compression airbag 5 is squeezed. Lubricating oil, an annular tube 18 is embedded in the interior of the ring 3, and the interior of the annular tube 18 is connected to the four compression airbags 5. The annular tube 18 allows the lubricating oil injected into the oil filling hole 4 to be dispersed into the corresponding compression airbags 5, so that the lubricating oil is temporarily retained in the compression airbags 5. An oil filling hole 4 is opened on one side of the annular tube 18. The function of the oil filling hole 4 is to facilitate the operator to inject lubricating oil into the compression airbag 5. A side wall of the ring 3 is movably connected with a pendulum pin 11, and the pendulum pin 11 can swing on one side wall of the ring 3, so as to facilitate the punch body 1 to be adjusted to a vertical direction when installing the punch body 1.

[0026] Specifically, a through hole 13 is opened at the top of the ring 3, and the vertical rod 6 is movably connected with the ring 3 through the through hole 13. The inner diameter of the through hole 13 is adapted to the outer diameter of the vertical rod 6, so that the vertical rod 6 can slide up and down in the through hole 13, thereby facilitating the top ring 2 and the bottom ring 7 to slide stably along the vertical rod 6 at the top and bottom of the ring 3.

[0027] Further, the top ring 2 is movably connected to the collar 3 through the vertical rod 6, and the bottom ring 7 is movably connected to the compression airbag 5 through the vertical rod 6. When the bottom ring 7 slides on the vertical rod 6, it will move towards the compression airbag 5, and finally the compression airbag 5 can be squeezed by the bottom ring 7, so as to realize the extrusion of the lubricating oil in the compression airbag 5 from the oil injection hole.

[0028] Further, a first thread 12 is provided on the outer wall of the punch body 1, and a second thread 14 is provided on the inner wall of the collar 3. The first thread 12 and the second thread 14 are male and female threads, which is convenient for removing the collar 3 from the punch body 1, so that the collar 3 can be cleaned and replaced in time.

[0029] Further, the first thread 12 is engaged with the second thread 14, and the collar 3 is movably threadedly connected to the punch body 1 through the second thread 14, so that the collar 3 can maintain a stable connection relationship with the punch body 1, which is beneficial for the structure on the collar 3 to act on the punch body 1.

[0030] Further, a first round hole 16 is provided on the outer wall of the bottom ring 7, and a second round hole 17 is provided on the outer wall of the snap ring 9. The inner diameters of the first round hole 16 and the second round hole 17 are the same, and the numbers of the first round hole 16 and the second round hole 17 are both four, which are respectively located on the front, back, left and right four faces of the bottom ring 7 and the snap ring 9.

[0031] Furthermore, a pin 8 is movably inserted into the inner sides of the first round hole 16 and the second round hole 17. The snap ring 9 is movably connected to the bottom ring 7 through the pin 8, and the brush strip 10 is movably connected to the punch body 1 through the bottom ring 7. The number of the pins 8 is also four, so that the snap ring 9 can be assembled and fixed to the bottom ring 7 through the pin 8, which is convenient for disassembling the snap ring 9 and the brush strip 10 from the bottom ring 7, and thus is beneficial for replacing the dirty brush strip 10.

[0032] The usage method of this embodiment is as follows: When using this multifunctional punch for precision stamping, it is necessary to first connect the punch to the upper die sleeve, and then observe whether there is an included angle between the straight line where the pendulum needle 11 is located on the side wall of the collar 3 and the straight line where the punch body 1 is located. If there is no included angle, the bolts for fixing the punch on the upper die sleeve can be tightened. Then, the punch will move downward with the upper die sleeve towards the die on the lower die sleeve. When the end of the punch is about to contact the top of the die, the bottom ring 7 sleeved on the end of the punch will first contact the top of the die, then fit on the top of the die. Then, the punch will penetrate into the die. At this time, the end of the punch will pass through the brush strip 10 on the clamping ring 9 inside the bottom ring 7 and enter the die, enabling the brush strip 10 to clean the surface of the punch. At the same time, the bottom ring 7 fitted on the top of the die will push the top ring 2 through the vertical rod 6, causing the top ring 2 to separate from the collar 3 until the compression airbag 5 at the bottom end of the collar 3 contacts the top end of the bottom ring 7. The lubricating oil in the compression airbag 5 will be sprayed out from the oil outlet hole 15, causing the lubricating oil to be sprayed onto the surface of the top of the punch. Then, the punch will be withdrawn from the die, and then the lubricating oil on the surface of the top of the punch will move downward along the surface of the punch, enabling the lubricating oil to be smeared. When it is necessary to replace the brush strip 10, just pull out the pin 8 from the first round hole 16 on the outside of the bottom ring 7, and the clamping ring 9 can be removed from the bottom ring 7. When it is necessary to replace the collar 3, just rotate the collar 3 counterclockwise to separate the first thread 12 from the second thread 14.

[0033] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A multi-functional punch for precision stamping, comprising a punch body (1), characterized in that: A collar (3) is provided at the top of the punch body (1), a top ring (2) is provided at the top of the collar (3), a vertical rod (6) is fixedly connected to the bottom end of the top ring (2), a bottom ring (7) is fixedly connected to the bottom end of the vertical rod (6), a clamping ring (9) is provided inside the bottom ring (7), a brush strip (10) is movably connected inside the clamping ring (9), a compression airbag (5) is movably connected to the bottom end of the collar (3), an oil outlet hole (15) is formed in the inner wall of the compression airbag (5), an annular pipe (18) is embedded inside the collar (3), an oil injection hole (4) is formed in one side of the annular pipe (18), and a pendulum needle (11) is movably connected to one side wall of the collar (3).

2. The multifunctional punch for precision stamping according to claim 1, wherein: A through hole (13) is formed at the top end of the collar (3), and the vertical rod (6) is movably inserted through the through hole (13) and the collar (3).

3. The multifunctional punch for precision stamping according to claim 1, wherein: The top ring (2) is movably connected to the collar (3) through the vertical rod (6), and the bottom ring (7) is movably connected to the compression airbag (5) through the vertical rod (6).

4. A multi-functional punch for precision stamping according to claim 1, characterized in that: A first thread (12) is formed on the outer wall of the punch body (1), and a second thread (14) is formed on the inner wall of the collar (3).

5. The multifunctional punch for precision stamping according to claim 4, characterized in that: The first thread (12) is engaged with the second thread (14), and the collar (3) is movably threadedly connected to the punch body (1) through the second thread (14).

6. A multi-functional punch for precision stamping according to claim 1, characterized in that: A first round hole (16) is formed on the outer wall of the bottom ring (7), and a second round hole (17) is formed on the outer wall of the clamping ring (9).

7. The multifunctional punch for precision stamping according to claim 6, wherein: A pin (8) is movably inserted through the inner sides of the first round hole (16) and the second round hole (17), the clamping ring (9) is movably connected to the bottom ring (7) through the pin (8), and the brush strip (10) is movably connected to the punch body (1) through the bottom ring (7).

Images