Rotary swage piercer

Abstract

The present application relates to punch equipment technical field, and discloses a rotary forging punch, including fixed frame, fixedly arranged in the fixed frame limit seat and the movable setting in the lower mould of limit seat, rotary forging punch still includes fixedly installed in the punch main body and buffer mechanism of fixed frame, through the buffer mechanism set, effectively reduce the impact force that lower mould is received, avoid the plastic deformation of lower mould, improve the service life of lower mould, guarantee the machining precision stability of workpiece, simultaneously, through the setting of piston rod and jet pipe, in the process that upper mould is close to lower mould and moves down, piston synchronously compresses the gas in buffer pipe, forces the high-speed gas to spray from jet pipe, this continuous, directional high-speed airflow before the closure of upper mould and lower mould, that is, carries out strong blowing to the lower mould bearing surface, effectively removes the residual scale, reduces the risk that scale scratches mould cavity and workpiece surface.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of punching equipment, in particular to a rotary forging punching machine. BACKGROUND

[0002] The rotary forging punching machine is a key equipment for post-casting processing. Its main working principle is to fix the workpiece by the lower die, complete the clamping of the die by the downward movement of the upper die, and perform the hole opening on the workpiece by the punching core shaft. For details, refer to the similar processing method disclosed in CN119456805A.

[0003] However, in actual use, the die closing mechanism of the traditional punching machine generally adopts rigid contact type closing, such as mechanical hard limit or hydraulic cylinder straight pressure. The upper die will produce a peak impact force in an instant when it contacts the lower die at high speed. Long-term effect will easily cause plastic deformation of the lower die, leading to die closing precision attenuation and affecting the machining precision of subsequent workpieces.

[0004] In addition, due to the process characteristics, metal oxide scale will be generated when the forging is punched. The scattered oxide scale will scratch the surface of the workpiece during the workpiece machining process, leaving scratches on the surface of the workpiece and causing appearance defects or even affecting the subsequent assembly or use performance. SUMMARY

[0005] In view of the above shortcomings of the prior art, the present application provides a collecting box and a anti-deviation assembly, which can effectively solve the problems existing in the prior art.

[0006] To achieve the above purpose, the present application is realized by the following technical scheme:

[0007] The present application provides a rotary forging punching machine, which comprises a fixing frame, a limiting seat fixedly arranged in the fixing frame, and a lower die movably arranged in the limiting seat. The rotary forging punching machine further comprises a punching machine main body fixedly installed in the fixing frame, which is composed of a hydraulic cylinder, a punching core shaft, a sliding block, and an upper die, and forms a punching structure capable of vertically moving above the limiting seat. A buffer cavity is formed in the inside of the fixing frame, and the buffer cavity is arranged on both sides of the limiting seat.

[0008] The buffer mechanism comprises an extrusion plate movably arranged at the top of the buffer cavity, a buffer pipe fixedly arranged at the bottom of the buffer cavity, a jet pipe fixedly arranged on one side of the buffer pipe, and a piston rod movably arranged in the buffer pipe. One side of the extrusion plate is fixedly connected with the sliding block. The buffer pipes are symmetrically arranged on both sides of the limiting seat. The gas outlet end of the jet pipe is directed towards the lower die. The end of the jet pipe away from the limiting seat is fixedly connected with the center of the outer wall of the buffer pipe.

[0009] Further, a plurality of pressing oil cylinders are fixedly installed on the outer wall of the hydraulic cylinder, and the plurality of pressing oil cylinders are uniformly and interval distributed on the hydraulic cylinder.

[0010] The output end of the pressing oil cylinder is fixedly connected with the sliding block, and the upper die is movably installed at the bottom of the sliding block through a rotary connecting piece.

[0011] Further, a moving through slot is formed at the center of the sliding block and the upper die, the punching mandrel is located in the moving through slot, a guide rail is fixedly installed in the fixing frame, and a sliding groove is formed at the two sides of the sliding block, and the guide rail is arranged in the sliding groove.

[0012] Further, a magnetic plate is fixedly installed at the top of the piston rod, an electromagnetic block one is fixedly installed at the bottom of the extrusion plate, the edge of the extrusion plate is flush with the central axis of the magnetic plate, a horizontal plate is fixedly installed in the buffer cavity, an electromagnetic block two is fixedly installed at the bottom of the horizontal plate, and the horizontal plate is arranged in a staggered manner with the extrusion plate.

[0013] Further, a touch switch is fixedly installed in the buffer cavity, the height of the touch switch is flush with the horizontal plate, and an extrusion groove is formed in the side of the extrusion plate close to the sliding block, and the position of the extrusion groove is matched with the touch switch.

[0014] Further, the air injection pipe is provided with an air inlet pipe, one end of the air inlet pipe away from the limiting seat is fixedly connected with the buffer pipe, and the connecting position is close to the bottom of the buffer pipe;

[0015] Further, an air exhaust pipe is fixedly installed at the bottom of the buffer pipe, filter boxes are fixedly installed at the two sides of the fixing frame, one end of the air exhaust pipe away from the buffer pipe is fixedly connected with one side of the filter box, and one end of the filter box away from the air exhaust pipe is fixedly connected with a fan;

[0016] The one-way valves are fixedly installed in the air injection pipe, the air inlet pipe and the air exhaust pipe.

[0017] Further, a driving motor is fixedly installed on the limiting seat, a transmission gear set is fixedly installed at the bottom of the limiting seat, and the driving motor is in transmission connection with the lower die through the transmission gear set.

[0018] Further, a hydraulic push rod is fixedly installed on the side of the limiting seat away from the driving motor, and a material pushing rod is movably installed at the bottom of the lower die.

[0019] Further, a connecting rod is movably installed at the bottom of the limiting seat, and the hydraulic push rod is in movable connection with the material pushing rod through the connecting rod.

[0020] Compared with the prior art, the technical scheme provided by the present application has the following beneficial effects:

[0021] (1) By arranging the buffer mechanism, when the sliding block drives the upper die to descend to the end section, flexible buffering is realized through compressed gas, the impact force received by the lower die is effectively reduced, plastic deformation of the lower die is avoided, the service life of the lower die is improved, and the machining precision stability of the workpiece is ensured;

[0022] (2) The present application is provided with the piston rod and the air jet pipe, in the process of the upper die moving down to approach the lower die, the piston synchronously compresses the gas in the buffer pipe, forces the gas to jet out from the air jet pipe at high speed, the continuous and directional high-speed airflow effectively removes the residual oxide scale before the upper die and the lower die are closed, and the risk of the oxide scale scratching the die cavity and the workpiece surface is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor on the basis of these drawings.

[0024] Figure 1 A structure schematic diagram of a rotary forging piece punching machine is provided for the embodiments of the present application.

[0025] Figure 2 A structure schematic diagram of a fixed frame is provided for the embodiments of the present application.

[0026] Figure 3 A structure schematic diagram of a punching machine main body is provided for the embodiments of the present application.

[0027] Figure 4 A structure schematic diagram of a sliding block is provided for the embodiments of the present application.

[0028] Figure 5 A sectional view of the fixed frame is provided for the embodiments of the present application.

[0029] Figure 6 A structure schematic diagram of a material pushing rod is provided for the embodiments of the present application.

[0030] Figure 7 A structure schematic diagram of a transmission gear set is provided for the embodiments of the present application.

[0031] Figure 8 A structure schematic diagram of a transmission gear set is provided for the embodiments of the present application. Figure 5 An enlarged view of the D part in the middle.

[0032] Figure 9 A structure schematic diagram of an extrusion plate is provided for the embodiments of the present application.

[0033] Figure 10 A structure schematic diagram of a buffer mechanism is provided for the embodiments of the present application.

[0034] Figure 11 A sectional view of the buffer mechanism is provided for the embodiments of the present application.

[0035] Figure 12Working schematic diagram of the air injection pipe provided by the embodiment of the present application;

[0036] Figure 13 Working schematic diagram of the piston rod provided by the embodiment of the present application;

[0037] Figure 14 Working schematic diagram of the piston rod and the buffer pipe provided by the embodiment of the present application;

[0038] Figure 15 Working schematic diagram of the air injection pipe provided by the embodiment of the present application.

[0039] Explanation of reference signs:

[0040] 1, fixed frame; 12, limiting seat; 13, lower die; 14, buffer cavity; 19, driving motor; 191, transmission gear set; 192, hydraulic push rod; 193, material lifting rod; 194, connecting rod;

[0041] 2, punch machine main body; 21, hydraulic cylinder; 22, punch mandrel; 23, sliding block; 24, upper die;

[0042] 3, buffer mechanism; 31, extrusion plate; 32, buffer pipe; 33, air injection pipe; 34, piston rod; 35, magnetic plate; 36, electromagnetic block one; 37, cross plate; 38, electromagnetic block two; 39, touch switch; 391, extrusion groove; 393, air injection pipe; 394, air extraction pipe; 395, filter box; 396, fan; 397, upper cavity; 398, lower cavity;

[0043] 5, compression oil cylinder; 51, rotary connecting piece; 52, moving through slot; 53, guide rail; 54, sliding groove. DETAILED DESCRIPTION

[0044] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are some of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the protection scope of the present application.

[0045] The present application will be further described below in conjunction with the embodiments. Embodiment 1

[0046] Reference Figures 1-14For the first embodiment of the present application, a rotary forging puncher is provided, which comprises a fixed frame 1, a limiting seat 12 fixedly arranged in the fixed frame 1 and a lower die 13 movably arranged in the limiting seat 12, further comprises a puncher main body 2 fixedly installed in the fixed frame 1, which is composed of a hydraulic cylinder 21, a punch core shaft 22, a sliding block 23 and an upper die 24, forming a punch structure capable of vertically moving above the limiting seat 12, it is to be noted that the fixed frame 1 is also fixedly installed with the rest of the structures required for the puncher work, such as hydraulic control system, which are all conventional settings and will not be described in detail.

[0047] The outer wall of the hydraulic cylinder 21 is fixedly installed with a plurality of pressing oil cylinders 5, wherein the number of the pressing oil cylinders 5 is determined according to actual needs, in the embodiment, four pressing oil cylinders 5 are provided, which are evenly and spacedly distributed on the hydraulic cylinder 21 (as shown in Figure 4 ).

[0048] The output end of the pressing oil cylinder 5 is fixedly connected with the sliding block 23, the upper die 24 is movably installed at the bottom of the sliding block 23 through a rotary connecting piece 51, and the center of the sliding block 23 and the upper die 24 is provided with a moving through slot 52, in which the punch core shaft 22 is located (as shown in Figure 4 and Figure 5 ).

[0049] The pressing oil cylinder 5 drives the sliding block 23 to move, and then drives the upper die 24 to move, the fixed frame 1 is fixedly installed with a guide rail 53, and the sliding block 23 is provided with a sliding groove 54 on both sides, the guide rail 53 is arranged in the sliding groove 54 (as shown in Figure 4 ), when the sliding block 23 moves, the stability of the sliding block 23 is improved through the cooperation of the sliding groove 54 and the guide rail 53.

[0050] The cooperation mode of the pressing oil cylinder 5, the sliding block 23 and the upper die 24 is as follows: based on Figure 4 , after the workpiece is placed in the lower die 13, the pressing oil cylinder 5 is started to drive the sliding block 23 to move downward, when the upper die 24 abuts against the top of the workpiece, the pressing oil cylinder 5 stops working, on the one hand, the workpiece closing part is die pressed by the upper die 24, on the other hand, the workpiece is clamped and fixed through the cooperation of the upper die 24 and the lower die 13.

[0051] The upper die 24 is movably connected with the sliding block 23 through the rotary connecting piece 51, that is, when the workpiece rotates, the upper die 24 rotates synchronously, while the sliding block 23 remains fixed.

[0052] The limiting seat 12 is fixedly installed with a driving motor 19, the bottom of the limiting seat 12 is fixedly installed with a transmission gear set 191, and the driving motor 19 is in transmission connection with the lower die 13 through the transmission gear set 191 (as shown in Figures 6-7As shown, in actual use, the workpiece is placed in the lower die 13, the lower die 13 is driven to rotate by the driving motor 19, and the workpiece is rotated.

[0053] It should be noted that the principle of punching the workpiece is that when the workpiece rotates, the punching mandrel 22 is driven to move downward by the hydraulic cylinder 21 until the punching mandrel 22 contacts the center of the workpiece and continuously moves downward to punch the workpiece, and under the extrusion of the outer wall of the punching mandrel 22, the outer wall of the workpiece gradually fits the inner wall of the lower die 13 to shape the workpiece. That is, through the linkage of the upper die 24, the lower die 13 and the punching mandrel 22, the punching and stamping of the workpiece are simultaneously performed, greatly improving the processing efficiency of the workpiece.

[0054] Meanwhile, the limiting seat 12 away from the driving motor 19 is fixedly installed with a hydraulic push rod 192, the lower die 13 is movably installed with a material ejecting rod 193, and the limiting seat 12 is movably installed with a connecting rod 194. The hydraulic push rod 192 is movably connected with the material ejecting rod 193 through the connecting rod 194 (as shown). Figure 7

[0055] The cooperation mode of the hydraulic push rod 192, the connecting rod 194 and the material ejecting rod 193 is that, based on the fact that the hydraulic push rod 192 is driven to move downward by the driving motor 19, the connecting rod 194 is driven to move downward by the hydraulic push rod 192, and the material ejecting rod 193 is driven to move upward by the connecting rod 194. Figure 6 After the workpiece is punched, the hydraulic cylinder 21 drives the punching mandrel 22 to move upward and reset, at this time, the hydraulic push rod 192 is started, the connecting rod 194 is pushed to move downward, at this time, the material ejecting rod 193 is moved upward under the action of the connecting rod 194, so as to eject the workpiece in the lower die 13, which is convenient for subsequent discharging.

[0056] The fixed frame 1 is internally provided with a buffer cavity 14, the buffer cavity 14 is arranged on both sides of the limiting seat 12, and the buffer mechanism 3 is arranged. The buffer mechanism 3 provides flexible buffer by compressed gas at the end of the downward movement of the upper die 24 driven by the sliding block 23, effectively reduces the impact force on the lower die 13, avoids plastic deformation of the lower die 13, improves the service life of the lower die 13, and ensures the processing precision stability of the workpiece.

[0057] The buffer mechanism 3 comprises an extrusion plate 31 movably arranged at the top of the buffer cavity 14, a buffer pipe 32 fixedly arranged at the bottom of the buffer cavity 14, a gas jet pipe 33 fixedly arranged on one side of the buffer pipe 32, and a piston rod 34 movably arranged in the buffer pipe 32. The fixed frame 1 is provided with a through slot near the guide rail 53 for cooperation with the extrusion plate 31, and the extrusion plate 31 extends to the through slot and is fixedly connected with the sliding block 23.

[0058] ​A magnetic plate 35 is fixedly installed at the top of the piston rod 34, and an electromagnetic block 36 is fixedly installed at the bottom of the extrusion plate 31. The edge of the extrusion plate 31 is flush with the central axis of the magnetic plate 35. A horizontal plate 37 is fixedly installed in the buffer cavity 14, and an electromagnetic block 38 is fixedly installed at the bottom of the horizontal plate 37. The horizontal plate 37 and the extrusion plate 31 are staggered (e.g., ...). Figure 8 (as shown)

[0059] A touch switch 39 is fixedly installed inside the buffer cavity 14. The height of the touch switch 39 is flush with the horizontal plate 37. An extrusion groove 391 is formed on the side of the extrusion plate 31 near the slider 23. The position of the extrusion groove 391 is adapted to the touch switch 39 (e.g., Figure 9 As shown), in the initial state, the second electromagnetic block 38 is energized, and the magnetic plate 35 and the second electromagnetic block 38 are attracted to each other. The piston rod 34 is fixed, and the buffer tube 32 is filled with air. When the pressing cylinder 5 works, it drives the slider 23 to move down, which in turn drives the extrusion plate 31 to move down. When the bottom of the extrusion plate 31 contacts the magnetic plate 35, the extrusion groove 391 just squeezes the touch switch 39. The working state of the first electromagnetic block 36 and the second electromagnetic block 38 is controlled by the circuit.

[0060] Specifically, when the touch switch 39 is squeezed for the first time, the second electromagnetic block 38 is de-energized, while the first electromagnetic block 36 is energized and generates magnetism. At this time, the magnetic plate 35 changes from being attracted to the second electromagnetic block 38 to being attracted to the first electromagnetic block 36. The slider 23 continues to move down, which in turn drives the piston rod 34 to move down continuously, thereby using the piston to compress the gas inside the buffer tube 32.

[0061] When slider 23 moves upward to reset, a second pressure is applied to touch switch 39. At this time, electromagnetic block 1 36 is de-energized, while electromagnetic block 2 38 is energized and generates magnetism. At this time, magnetic plate 35 re-attracts to electromagnetic block 2 38, and electromagnetic block 1 36 separates from magnetic plate 35 and moves upward to reset synchronously with slider 23.

[0062] Reference Figures 12-14 The buffer tubes 32 are symmetrically arranged on both sides of the limiting seat 12. The air outlet of the jet pipe 33 points towards the lower mold 13. The end of the jet pipe 33 away from the limiting seat 12 is fixedly connected to the center of the outer wall of the buffer tube 32. Through the connection position of the jet pipe 33 and the buffer tube 32, the interior of the buffer tube 32 is divided into an upper cavity 397 and a lower cavity 398. The upper cavity 397 is located above the connection position, and the lower cavity 398 is located below the connection position. When the piston squeezes the gas in the buffer tube 32, the gas in the upper cavity 397 enters the jet pipe 33 and is sprayed out from the jet pipe 33 onto the surface of the lower mold 13, thereby continuously blowing the surface of the lower mold 13, effectively removing scattered metal scraps, and reducing the risk of scraps scratching the mold cavity and the surface of the workpiece.

[0063] Two jet pipes 33 are arranged on both sides of the limiting seat 12, and the two jet pipes 33 are staggered to provide the maximum blowing area and effectively improve the blowing effect.

[0064] The piston can generate sufficient air flow injection during the movement from the upper cavity 397 to the lower cavity 398, and the air is sprayed from the jet pipe 33. When the piston enters the lower cavity 398, the gas continues to be compressed, which can provide a buffer for the contact process of the upper die 24 and the lower die 13. That is, when the piston moves to the connecting position of the jet pipe 33 and the buffer pipe 32 (as shown in Figure 14 , the blowing stops. With the continuous downward movement of the piston, the gas in the lower cavity 398 is gradually compressed, and the compressed gas is used to provide a flexible buffer for the slider 23.

[0065] It should be noted that the jet pipe 33 is provided with a one-way valve, which mainly controls the flow direction of the gas. That is, when the gas flows from the buffer pipe 32 to the jet pipe 33, the one-way valve is in an open state. When the gas flows from the jet pipe 33 to the buffer pipe 32, the one-way valve is in a closed state and blocks the gas, so as to ensure that the gas does not flow from the jet pipe 33 to the buffer pipe 32 when the piston rises. Embodiment 2

[0066] Referring to Figure 15 , a rotary forging puncher is provided for the second embodiment of the present application. Due to the process characteristics, the punch core 22 generates fine metal dust during the punching process of the workpiece. The fine metal dust is oxidized to form metal oxide particles and smog-like substances when it contacts air at high temperature. If the smog-like substances directly diffuse into the air, the health of the operator is easily affected.

[0067] The embodiment is aimed at the above problems, and the air inlet pipe 393 is arranged on one side of the jet pipe 33. The end of the air inlet pipe 393 away from the limiting seat 12 is fixedly connected with the buffer pipe 32, and the connecting position is close to the bottom of the buffer pipe 32 (as shown in Figure 15 , after the workpiece is processed, the slider 23 is gradually moved upward and reset under the action of the pressing oil cylinder 5. At this time, the piston rod 34 is moved upward synchronously with the slider 23 under the action of the electromagnetic block one 36 and the magnetic plate 35. During the upward movement of the piston, the smog-like substances are extracted through the air inlet pipe 393 and temporarily stored through the buffer pipe 32, so as to avoid direct diffusion into the processing environment.

[0068] It should be noted that the air inlet pipe 393 is provided with a one-way valve, which mainly controls the flow direction of the gas. That is, when the gas flows from the buffer pipe 32 to the air inlet pipe 393, the one-way valve is in a closed state and blocks the gas. When the gas flows from the air inlet pipe 393 to the buffer pipe 32, the one-way valve is in an open state, so as to ensure that the gas does not flow from the buffer pipe 32 to the air inlet pipe 393 when the piston descends.

[0069] Furthermore, an exhaust pipe 394 is fixedly installed at the bottom of the buffer pipe 32, and filter boxes 395 are fixedly installed on both sides of the fixing frame 1. The end of the exhaust pipe 394 away from the buffer pipe 32 is fixedly connected to one side of the filter box 395, and a fan 396 (e.g., ...) is fixedly connected to the end of the filter box 395 away from the exhaust pipe 394. Figure 11 As shown), the blower 396 is used to extract gas. When the piston moves to the top of the buffer tube 32, the blower 396 starts. At this time, under the action of the one-way valve, the jet pipe 33 is closed, and the gas flow direction is inlet pipe 393-buffer pipe 32-filter box 395 (as shown). Figure 15 (As shown).

[0070] The filter box 395 is equipped with multiple filter plates for filtering and collecting atomized substances in the gas. The specific type of filter plate is determined according to actual needs. The filtered gas is discharged from the fan 396 to ensure the processing environment. A one-way valve is fixedly installed in the exhaust pipe 394. Under the action of the one-way valve, the gas can only flow into the filter box 395 through the buffer pipe 32. At the same time, the fan 396 continues to work to ensure the cleanliness of the gas in the buffer pipe 32.

[0071] That is, by working together with the exhaust pipe 394, the filter box 395 and the fan 396, the smoke-like substances generated during processing can be collected and cleaned up in a timely and efficient manner.

[0072] In summary:

[0073] On the one hand, the present invention uses a buffer mechanism 3 to achieve flexible buffering by compressed gas when the slider 23 drives the upper mold 24 to the end, which effectively reduces the impact force on the lower mold 13, avoids plastic deformation of the lower mold 13, improves the service life of the lower mold 13, and ensures the stability of the workpiece processing accuracy.

[0074] Simultaneously, as the upper mold 24 moves downwards and approaches the lower mold 13, the piston synchronously compresses the gas in the buffer tube 32, forcing the gas to be ejected at high speed from the jet pipe 33. This continuous and directional high-speed airflow powerfully blows the bearing surface of the lower mold 13 before the upper mold 24 and the lower mold 13 close, effectively removing scattered metal scraps and reducing the risk of scraps scratching the mold cavity and the surface of the workpiece.

[0075] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of the present invention.

Claims

1. A rotary forging piece piercing machine, comprising a fixed frame (1), a limiting seat (12) fixedly arranged in the fixed frame (1), and a lower die (13) movably arranged in the limiting seat (12), characterized in that, Also include fixedly installed in the fixed frame (1) punch main body (2), including hydraulic cylinder (21), punch core shaft (22), slider (23) and upper die (24), constitute can be above the limiting seat (12) vertical movement of the punching structure, the fixed frame (1) inside opening has buffer cavity (14), the buffer cavity (14) is arranged in limiting seat (12) both sides; Buffer mechanism (3), including the extrusion plate (31) movably provided at the top of the buffer cavity (14), the buffer pipe (32) fixedly provided at the bottom of the buffer cavity (14), the jet pipe (33) fixedly provided at one side of the buffer pipe (32) and the piston rod (34) movably provided in the buffer pipe (32), one side of the extrusion plate (31) is fixedly connected with the slider (23), the buffer pipe (32) is symmetrically provided on both sides of the limiting seat (12), the jet pipe (33) gas outlet end points to the direction of the lower die (13), the jet pipe (33) is fixedly connected with the buffer pipe (32) at the center of the outer wall of the end away from the limiting seat (12), The jet pipe (33) is provided with an air inlet pipe (393) on one side, and the air inlet pipe (393) is fixedly connected with the buffer pipe (32) at the end away from the limiting seat (12), and the connecting portion is close to the bottom of the buffer pipe (32); The bottom of the buffer pipe (32) is fixedly provided with an air exhaust pipe (394), and the filter box (395) is fixedly installed on both sides of the fixed frame (1). One end of the air exhaust pipe (394) away from the buffer pipe (32) is fixedly connected with one side of the filter box (395), and one end of the filter box (395) away from the air exhaust pipe (394) is fixedly connected with the fan (396). The jet pipe (33), the air inlet pipe (393) and the air exhaust pipe (394) are all fixedly provided with a check valve.

2. A rotary swage puncher according to claim 1, characterized in that: The outer wall of the hydraulic cylinder (21) is fixedly provided with a plurality of pressing oil cylinders (5), and the pressing oil cylinders (5) are evenly distributed on the hydraulic cylinder (21). The output end of the pressing oil cylinder (5) is fixedly connected with the slider (23), and the upper die (24) is movably installed at the bottom of the slider (23) through the rotary connecting piece (51).

3. A rotary swage puncher according to claim 2, wherein: The center of the slider (23) and the upper die (24) is provided with a moving groove (52), the punch core shaft (22) is located in the moving groove (52), the fixed frame (1) is fixedly provided with a guide rail (53), and the guide rail (53) is provided in the sliding groove (54).

4. A rotary swage puncher according to claim 1, characterized in that: The top of the piston rod (34) is fixedly provided with a magnetic plate (35), the bottom of the extrusion plate (31) is fixedly provided with an electromagnetic block one (36), the edge of the extrusion plate (31) is flush with the central axis of the magnetic plate (35), the buffer cavity (14) is fixedly provided with a horizontal plate (37), the bottom of the horizontal plate (37) is fixedly provided with an electromagnetic block two (38), and the horizontal plate (37) is arranged in error with the extrusion plate (31).

5. A rotary swage puncher according to claim 4, characterised in that: The buffer cavity (14) is internally fixedly installed with a touch switch (39), the height of the touch switch (39) is flush with the horizontal plate (37), one side of the extrusion plate (31) close to the sliding block (23) is provided with an extrusion groove (391), and the extrusion groove (391) is matched with the touch switch (39) in position.

6. A rotary swage puncher according to claim 1 wherein: The limiting seat (12) is fixedly installed with a driving motor (19), and the limiting seat (12) is fixedly installed with a transmission gear set (191) at the bottom; the driving motor (19) is in transmission connection with the lower die (13) through the transmission gear set (191).

7. A rotary swage puncher according to claim 6 wherein: The limiting seat (12) is fixedly installed with a hydraulic push rod (192) away from the driving motor (19), and the lower die (13) is movably installed with a material pushing rod (193) at the bottom.

8. A rotary swage puncher according to claim 7, characterized in that: The limiting seat (12) is movably installed with a connecting rod (194) at the bottom, and the hydraulic push rod (192) is movably connected with the material pushing rod (193) through the connecting rod (194).

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