Punching machine and punching method

Abstract

The invention relates to the technical field of punching, in particular to a punching machine and a punching method.The punching machine comprises a punching body, the punching body comprises a machining platen, a supporting die assembly is arranged on the upper side of the machining platen and used for supporting a workpiece, and an intermittent moving assembly is arranged on one side of the supporting die assembly; the intermittent moving assembly is used for intermittently driving the supporting die assembly to horizontally move, the stamping die assembly is arranged on the upper side of the supporting die assembly and used for stamping a workpiece, the stamping die assembly is used for driving the intermittent moving assembly, and the riveting auxiliary assembly is arranged between the stamping die assembly and the supporting die assembly. The riveting auxiliary assembly is used for assisting riveting machining. Through the arrangement of the stamping body, the supporting die assembly, the intermittent moving assembly, the stamping die assembly, the riveting auxiliary assembly and the reset auxiliary assembly, the automatic continuous machining device has the functions of automatic continuous machining, dual purposes, driving cooperation and auxiliary reset.

Description

Technical Field

[0001] The present invention relates to the field of stamping technology, and in particular to a stamping machine and a stamping method. Background Art

[0002] Forging is a processing method that uses a forging machine to apply pressure to a metal blank to cause it to undergo plastic deformation in order to obtain forgings with certain mechanical properties, shapes and sizes. It is one of the two major components of forging (forging and stamping). Forging can eliminate defects such as cast porosity produced during the metal smelting process and optimize the microstructure. At the same time, because the complete metal flow lines are preserved, the mechanical properties of forgings are generally better than those of castings of the same material.

[0003] Riveting, also known as rivet connection, is a mechanical term that uses axial force to thicken the rivet rod in the rivet hole of the part and form a rivet head to connect multiple parts. Currently, a punching machine is usually required when performing forging, stretching or riveting.

[0004] During use, the existing stamping machine usually needs to manually move the workpiece after stamping it once, so as to achieve continuous forging extension or continuous riveting. This processing method has poor continuity, resulting in low processing efficiency, and requires a large amount of labor from personnel, and there are great safety hazards. For this reason, we propose a stamping machine and a stamping method to solve the above problems. Summary of the invention

[0005] The present invention proposes a punching machine and a punching method to solve the problem that existing punching machines usually require manual movement of workpieces, this processing method has poor continuity, resulting in low processing efficiency, requiring personnel to pay a large amount of labor, and posing great safety hazards.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions: A stamping machine is designed, including a stamping body, the stamping body including a processing table, a supporting die assembly is provided on the upper side of the processing table, the supporting die assembly is used to support a workpiece, an intermittent moving assembly is provided on one side of the supporting die assembly, the intermittent moving assembly is used to intermittently drive the supporting die assembly to translate, a stamping die assembly is provided on the upper side of the supporting die assembly, the stamping die assembly is used to stamp the workpiece, the stamping die assembly is used to drive the intermittent moving assembly, a riveting auxiliary assembly is provided between the stamping die assembly and the supporting die assembly, the riveting auxiliary assembly is used to assist riveting processing, a reset auxiliary assembly is provided on one side of the supporting die assembly, the reset auxiliary assembly is used to assist in resetting the supporting die assembly, and the stamping die assembly is used to trigger the reset auxiliary assembly for assistance.

[0007] Preferably, the stamping body further comprises a main frame, the processing table is fixed on the main frame, and retaining frames are fixedly provided on two sides of the processing table away from each other.

[0008] Preferably, the supporting mold assembly includes a base, which slides on the upper side of the processing table, and the upper side of the base is in contact with a lower mold, and a plurality of tension springs are fixed between the lower side of the lower mold and one side of the base, and a plurality of limit blocks are fixed on the upper side of the base, and connecting plates are fixed on two sides away from each other of the lower mold, and a plurality of guide holes are provided on the lower side of the connecting plate, and the limit blocks slide on the inner side of the guide holes, and a handle is fixed on one side of the connecting plate.

[0009] Preferably, the intermittent moving component includes a connecting shaft and a second gear, a connecting frame is rotatably provided on the outer periphery of the connecting shaft, the connecting frame is fixed on one side of the processing table, the outer periphery of the connecting shaft is fixedly provided with a first gear, and the lower side of the other connecting plate is fixedly provided with a first rack, the first rack can be in contact with the first gear for transmission connection, the connecting shaft is located inside the second gear, a one-way driving component is provided between the second gear and the connecting shaft, a lifting square tube is slidably provided on one side of the main frame, a second rack is fixedly provided on one side of the lifting square tube, the second rack can be in contact with the second gear for transmission connection, a driving rod is slidably provided on the inner side of the lifting square tube, and the lifting square tube and the driving rod are detachably connected by bolts.

[0010] Preferably, the one-way driving assembly includes two rotating rings, which are fixed on the inner side of the second gear and rotate on the outer periphery of the connecting shaft. A ratchet is fixed on the outer periphery of the connecting shaft, and a plurality of one-way teeth are rotatably provided on the inner side of the second gear. The one-way teeth are in contact with the outer periphery of the ratchet, and a spring is fixed between one side of the one-way teeth and the inner side of the second gear.

[0011] Preferably, the stamping die assembly includes a hydraulic cylinder, a mounting hole is provided on the upper side of the main frame, the hydraulic cylinder is fixed on the inner side of the mounting hole, a force dissipation frame is fixed on the axial end of the hydraulic cylinder, a lifting seat and a pressing head are fixed on the lower side of the force dissipation frame in sequence, the lifting seat slides on one side of the main frame, and the driving rod is fixed on one side of the lifting seat.

[0012] Preferably, the riveting auxiliary component includes an auxiliary bottom mold, a connecting seat, and connecting bolts. The auxiliary bottom mold contacts the inner wall of the lower mold, and plugs are fixedly provided on two sides of the auxiliary bottom mold that are far away from each other. A plurality of positioning sleeves are fixedly provided on two sides of the lower mold that are far away from each other. The plug is inserted and removed in the positioning sleeve, and the pressing head is removed from the inner side of the connecting seat. A riveting pressure head is fixed on the lower side of the connecting seat. Through holes are provided on two sides of the connecting seat that are far away from each other, and a plurality of connecting holes are provided on one side of the lifting seat. The connecting bolts are removed from the inner side of the through holes and a connecting hole, and a connecting nut is provided on the outer periphery of the connecting bolt through a threaded connection.

[0013] Preferably, the reset auxiliary component includes a pulling rod, which is fixed on one side of the lifting seat, a lifting frame is slidably provided on one side of the main frame, a long sliding groove is provided on one side of the other connecting plate, the lifting frame slides on the inner side of the long sliding groove, and the upper side of the bottom of the pulling rod can contact the lower side of the lifting frame.

[0014] A punching method of a punching machine comprises the following steps: S1. Selectively use riveting auxiliary components according to needs; S2. Adjust the intermittent moving components according to the needs; S3, automatically and continuously riveting the workpiece by cooperating with the stamping die assembly, the supporting die assembly, the intermittent moving assembly and the riveting auxiliary assembly, or automatically and continuously forging and extending the workpiece by cooperating with the stamping die assembly, the supporting die assembly and the intermittent moving assembly; S4. After the processing is completed, the support mold assembly is reset by cooperating with the stamping mold assembly and the reset auxiliary assembly.

[0015] The punching machine and punching method proposed by the present invention have the following beneficial effects: (1) By arranging a stamping body, a supporting die assembly, an intermittent moving assembly, a one-way driving assembly, a stamping die assembly, and a riveting auxiliary assembly, the present invention has an automatic continuous processing function, has high processing continuity, and thus has high processing efficiency, and does not require a large amount of labor. During processing, there is no need to manually move the workpiece, thereby having high safety.

[0016] (2) By providing a stamping body, a supporting die assembly, a stamping die assembly, and a riveting auxiliary assembly, the present invention has a dual-purpose function of one machine, which can perform automatic continuous forging and stretching processing, and can also perform automatic continuous riveting processing. The usage mode can be selected according to needs, thereby reducing production costs.

[0017] (3) By providing a supporting die assembly, an intermittent moving assembly, a one-way driving assembly, and a stamping die assembly, the present invention has a driving coordination function. When the pressing head rises and resets, the supporting die assembly can be driven to move by the intermittent moving assembly to realize automatic movement of materials. It does not require the coordination of multiple driving components, which can save manufacturing costs. In addition, the failure rate is low, which is convenient for later repair and maintenance.

[0018] (4) By providing a stamping body, a supporting die assembly, a stamping die assembly, and a resetting auxiliary assembly, the present invention has an auxiliary resetting function. After the processing is completed, when the hydraulic cylinder is fully retracted, the first gear and the first rack can be separated, thereby assisting in resetting the supporting die assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A schematic diagram of the front three-dimensional structure of a punching machine proposed by the present invention; Figure 2 The present invention proposes Figure 1 A schematic diagram of the partial enlarged structure of the middle A area; Figure 3 The present invention proposes Figure 1 A schematic diagram of the partial enlarged structure of the middle B area; Figure 4 A schematic diagram of the back three-dimensional structure of a punching machine proposed by the present invention; Figure 5 A schematic diagram of a side cutaway three-dimensional structure of a punching machine proposed by the present invention; Figure 6 The present invention proposes Figure 5 A schematic diagram of the partial enlarged structure of the middle C area; Figure 7 The present invention proposes Figure 5 A schematic diagram of the partial enlarged structure of the middle D area; Figure 8 A front cutaway three-dimensional structural schematic diagram of a punching machine proposed by the present invention; Fig. 9 The present invention proposes Figure 8 A schematic diagram of the partial enlarged structure of the middle E area; Fig.10 This is a front axonometric structural schematic diagram of a punching machine proposed by the present invention; Fig.11 A partial front perspective structural diagram of a punching machine proposed by the present invention; Fig.12 A schematic diagram of a partial back three-dimensional structure of a punching machine proposed by the present invention; Fig.13 A schematic diagram of a partial rear axonometric structure of a punching machine proposed by the present invention; Fig.14 This is a front structural schematic diagram of a punching machine proposed by the present invention.

[0020] In the figure: 1. Processing table; 2. Main frame; 3. Base; 4. Lower mold; 5. Tension spring; 6. Limit block; 7. Connecting plate; 8. Stop frame; 9. Handle; 10. Connecting shaft; 11. Connecting frame; 12. First gear; 13. First rack; 14. Second gear; 15. Lifting square tube; 16. Second rack; 17. Driving rod; 18. Rotating ring; 19. Ratchet; 20. One-way tooth; 21. Spring; 22. Hydraulic cylinder; 23. Dissipating force frame; 24. Lifting seat; 25. Pressing head; 26. Auxiliary bottom mold; 27. Plug; 28. Positioning sleeve; 29. ​​Connecting seat; 30. Riveting press head; 31. Connecting bolt; 32. Connecting hole; 33. Connecting nut; 34. Pull-up rod; 35. Lifting frame; 36. Long slide groove. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0022] Reference Figures 1 to 14 A stamping machine includes a stamping body, which includes a processing table 1. The stamping body also includes a main frame 2. The main frame 2 is a C-shaped structure. The processing table 1 is fixed on the main frame 2. Guard frames 8 are fixed on both sides of the processing table 1 that are away from each other. Two oblique reinforcement plates are fixed between the processing table 1 and the main frame 2.

[0023] like Figure 2 , Figure 6 , Fig.13 As shown, a supporting mold assembly is provided on the upper side of the processing table 1, and the supporting mold assembly is used to support the workpiece. The supporting mold assembly includes a base 3, and the base 3 slides on the upper side of the processing table 1. The upper side of the base 3 is in contact with a lower mold 4, and the lower mold 4 is a U-shaped structure. The lower mold 4 can play a limiting shaping role in the forging process, and can make the workpiece be forged into a suitable thickness and width. A plurality of tension springs 5 ​​are fixedly provided between the lower side of the lower mold 4 and one side of the base 3. The tension spring 5 can pull down the lower mold 4, so that the lower mold 4 is close to the base under normal conditions. 3, a plurality of limit blocks 6 are fixedly provided on the upper side of the base 3, and the limit blocks 6 are of T-shaped structure. The limit blocks 6 can play a limiting and guiding role when the lower mold 4 rises, so as to prevent the lower mold 4 from being separated. Connecting plates 7 are fixedly provided on the two sides of the lower mold 4 that are far away from each other, and a plurality of guide holes are provided on the lower side of the connecting plate 7. The limit blocks 6 slide on the inner side of the guide holes, and the base 3 can contact with the retaining frame 8. A handle 9 is fixedly provided on one side of a connecting plate 7. When the lower mold 4 needs to be reset, the handle 9 can be held to pull back the lower mold 4 for easy reset.

[0024] like Figure 1 , Figure 3 , Fig.10 As shown, a stamping die assembly is provided on the upper side of the supporting die assembly, and the stamping die assembly is used for stamping workpieces. The stamping die assembly includes a hydraulic cylinder 22, and a mounting hole is provided on the upper side of the main frame 2. The hydraulic cylinder 22 is fixed on the inner side of the mounting hole. The hydraulic cylinder 22 is externally connected to the solenoid valve through an oil pipe. A force frame 23 is fixed on the axial end of the hydraulic cylinder 22, and a lifting seat 24 and a pressing head 25 are fixed on the lower side of the force frame 23 in sequence. The lifting seat 24 is a T-shaped structure, and the lifting seat 24 slides on one side of the main frame 2. When forging processing is required, the workpiece to be forged can be placed in the lower die 4 first, and one end of the workpiece needs to be placed under the pressing head 25, and then the hydraulic cylinder 22 is controlled to extend. The extension of the hydraulic cylinder 22 can drive the lifting seat 24 and the pressing head 25 to descend, thereby realizing automatic forging (such as Fig.10 as shown).

[0025] like Figures 7 to 9As shown, an intermittent moving component is provided on one side of the supporting die assembly, and the intermittent moving component is used to intermittently drive the supporting die assembly to translate, and the stamping die assembly is used to drive the intermittent moving component. The stamping die assembly, the supporting die assembly and the intermittent moving component cooperate to perform automatic continuous forging and extension processing. The intermittent moving component includes a connecting shaft 10 and a second gear 14. A connecting frame 11 is rotatably provided on the outer periphery of the connecting shaft 10, and the connecting frame 11 is fixed on one side of the processing table 1. A first gear 12 is fixed on the outer periphery of the connecting shaft 10, and a first rack 13 is fixed on the lower side of another connecting plate 7. The first rack 13 can be contacted and meshed with the first gear 12 for transmission connection, and the first rack 13 can be separated from the first gear 12. Under normal circumstances, the first A rack 13 will be in contact and mesh with the first gear 12 due to the tension of the tension spring 5. The connecting shaft 10 is located inside the second gear 14. The connecting frame 11 is located between the first gear 12 and the second gear 14. A one-way driving component is provided between the second gear 14 and the connecting shaft 10. The one-way driving component includes two rotating rings 18. The rotating ring 18 is fixed to the inner side of the second gear 14. The rotating ring 18 rotates on the outer periphery of the connecting shaft 10. A ratchet 19 is fixed on the outer periphery of the connecting shaft 10. A plurality of one-way teeth 20 are rotatably provided on the inner side of the second gear 14. The one-way teeth 20 are in contact with the outer periphery of the ratchet 19. The one-way teeth 20 can be engaged with the outer periphery of the ratchet 19. A spring 21 is fixed between one side of the one-way teeth 20 and the inner side of the second gear 14. A lifting square tube 15 is slidably provided on one side of the main frame 2, and a second rack 16 is fixedly provided on one side of the lifting square tube 15. The second rack 16 can be contacted and meshed with the second gear 14 for transmission connection, and the second rack 16 can be separated from the second gear 14. A driving rod 17 is slidably provided on the inner side of the lifting square tube 15. The lifting square tube 15 and the driving rod 17 are detachably connected by bolts, and the driving rod 17 is fixed on one side of the lifting seat 24. During the forging of the workpiece, the lifting seat 24 and the pressing head 25 will perform reciprocating lifting and lowering motions. When the pressing head 25 rises or falls, the lifting square tube 15, the second rack 16 and the driving rod 17 will be driven to move together. When the second rack 16 is in contact and meshed with the second gear 14, the second rack 16 continues to move, and the second The rack 16 will drive the second gear 14 to rotate, and during the descent of the pressure head 25 and the second rack 16, the one-way tooth 20 cannot get stuck on the ratchet 19, so the second gear 14 cannot drive the connecting shaft 10 to rotate, and during the ascent of the pressure head 25 and the second rack 16, after the second rack 16 and the second gear 14 are in contact and meshing, the second gear 14 can drive the connecting shaft 10 to rotate. Therefore, during the forging of the workpiece, the pressure head 25 can descend to forge the workpiece, and the ascent of the pressure head 25 can drive the connecting shaft 10 and the first gear 12 to rotate. The rotation of the first gear 12 can drive the first rack 13, the connecting plate 7, the lower die 4 and the base 3 to translate, thereby moving the workpiece, thereby eliminating the need to manually move the workpiece, and realizing automatic continuous forging.It has high forging efficiency, saves labor, and has high safety. By controlling the rising height of the pressure head 25, the translation distance of the lower mold 4 can be controlled. It should be noted that before use, it is necessary to adjust the length of the driving rod 17 inserted into the lifting square tube 15 according to the thickness of the workpiece. When it is necessary to adjust the length of the driving rod 17 inserted into the lifting square tube 15, it is necessary to first loosen the bolts between the lifting square tube 15 and the driving rod 17, and then adjust it. After the adjustment is completed, tighten the bolts between the lifting square tube 15 and the driving rod 17 to lock it, so that the pressure head 25 can be controlled to rise to a certain height, and the second rack 16 can be in contact and mesh with the second gear 14, thereby driving the workpiece to translate, thereby preventing the workpiece from hitting the pressure head 25, and further improving the forging efficiency.

[0026] like Figure 8 , Figure 12 to Figure 14 As shown, a reset auxiliary component is provided on one side of the supporting die assembly, and the reset auxiliary component is used to assist the reset of the supporting die assembly, and the stamping die assembly is used to trigger the reset auxiliary component for assistance. The reset auxiliary component includes a pull-up rod 34, and the lower part of the pull-up rod 34 is an L-shaped structure. The pull-up rod 34 is fixed on one side of the lifting seat 24. A lifting frame 35 is slidably provided on one side of the main frame 2. The main body of the lifting frame 35 is an L-shaped structure. A long slide groove 36 is provided on one side of the other connecting plate 7. The lifting frame 35 slides on the inner side of the long slide groove 36. The upper side of the bottom of the pull-up rod 34 can contact the lower side of the lifting frame 35. When the workpiece is forged, the base 3 will move to the other side of the processing table 1, and the first rack 13 will also disengage from the first gear 12 (as shown in FIG. Fig.13 As shown), the hydraulic cylinder 22 is then controlled to retract and reset, and the pressing head 25 will rise and reset. At this time, the base 3 will not move, and the bottom of the pull-up rod 34 will approach and contact the lifting frame 35. When the hydraulic cylinder 22 is fully retracted, the pull-up rod 34 can pull up the lifting frame 35, the connecting plate 7 and the lower mold 4 (as shown). Fig.14 As shown), the lower die 4 can rise and move away from the base 3, and the first rack 13 can also rise and move away from the first gear 12. At this time, the base 3 can be pulled back to its original position, thereby performing auxiliary resetting, and then the next workpiece can be forged, the pressing head 25 will drop, and the first rack 13 will also drop to contact and mesh with the first gear 12, so as to facilitate continuous processing.

[0027] like Figure 2 , Figure 3 , Figure 6As shown, a riveting auxiliary component is provided between the stamping die assembly and the supporting die assembly, and the riveting auxiliary component is used to assist the riveting process. The riveting auxiliary component, the stamping die assembly, the supporting die assembly and the intermittent moving assembly cooperate to perform automatic continuous riveting processing. The riveting auxiliary component includes an auxiliary bottom die 26, a connecting seat 29, and a connecting bolt 31. The auxiliary bottom die 26 contacts the inner wall of the lower die 4, and the connecting seat 29 is a U-shaped structure. The auxiliary bottom die 26 can be detached from the inner side of the lower die 4. Plugs 27 are fixedly provided on both sides of the auxiliary bottom die 26 that are away from each other. The plug 27 is an L-shaped structure. A plurality of positioning sleeves 28 are fixedly provided on both sides of the lower die 4 that are away from each other. The positioning sleeves 28 are evenly arranged in a line, and the plug 27 is plugged in and disassembled to fit in In the positioning sleeve 28, the pressing head 25 is disassembled on the inner side of the connecting seat 29, and a riveting pressure head 30 is fixedly provided on the lower side of the connecting seat 29. A hemispherical groove is provided on the lower side of the riveting pressure head 30. Through holes are provided on the two sides of the connecting seat 29 that are far away from each other. A plurality of connecting holes 32 are provided on one side of the lifting seat 24. The connecting holes 32 are evenly arranged in a line. The connecting bolt 31 is disassembled on the inner side of the through hole and a connecting hole 32. A connecting nut 33 is provided on the outer periphery of the connecting bolt 31 through a threaded connection. The connecting nut 33 is in contact with the connecting seat 29. When riveting processing is required, the riveting auxiliary component needs to be installed. During installation, the auxiliary bottom mold 26 needs to be placed at a suitable position inside the lower mold 4, and the plug 27 needs to be plugged into the positioning sleeve 28 (such as Figure 2 As shown), it is also necessary to install the connecting seat 29 on the lifting seat 24, select a suitable connecting hole 32, align the connecting hole 32 with the through hole, and then pass the connecting bolt 31 through the through hole and the connecting hole 32, and tighten the connecting nut 33 on the connecting bolt 31 to complete the installation, and then place the two workpieces to be riveted together on the auxiliary bottom mold 26, and pass the rivet through the two workpieces so that the rivet is located below the riveting pressure head 30, and then control the pressing head 25 and the riveting pressure head 30 to descend for riveting and stamping processing (as shown in FIG. Figure 1 , Figure 6 As shown in the figure, by controlling the pressing head 25 to rise and fall repeatedly, automatic continuous riveting can be performed. The principle is the same as that of forging. The moving distance of the workpiece can be controlled by controlling the rising height of the pressing head 25, so that the next rivet can be accurately moved to the bottom of the riveting press head 30.

[0028] In summary, a punching method of a punching machine comprises the following steps: S1. Selectively use the riveting auxiliary component according to the demand, specifically: when riveting processing is required, install the connecting seat 29 and the auxiliary bottom mold 26 in the riveting auxiliary component, and when riveting processing is not required, remove the connecting seat 29 and the auxiliary bottom mold 26 in the riveting auxiliary component; S2. Adjust the intermittent moving assembly according to the demand, specifically: adjust the length of the driving rod 17 inserted into the lifting square tube 15 according to the demand; S3, automatically and continuously riveting the workpiece by cooperating with the stamping die assembly, the supporting die assembly, the intermittent moving assembly and the riveting auxiliary assembly, or automatically and continuously forging and extending the workpiece by cooperating with the stamping die assembly, the supporting die assembly and the intermittent moving assembly; S4. After the processing is completed, the support mold assembly is reset by cooperating with the stamping mold assembly and the reset auxiliary assembly.

Claims

1. A punching machine, comprising a punching body, characterized in that: The stamping body comprises a processing table (1), a supporting die assembly is provided on the upper side of the processing table (1), the supporting die assembly is used to support a workpiece, an intermittent moving assembly is provided on one side of the supporting die assembly, the intermittent moving assembly is used to intermittently drive the supporting die assembly to translate, a stamping die assembly is provided on the upper side of the supporting die assembly, the stamping die assembly is used to stamp the workpiece, the stamping die assembly is used to drive the intermittent moving assembly, a riveting auxiliary assembly is provided between the stamping die assembly and the supporting die assembly, the riveting auxiliary assembly is used to assist in riveting processing, a resetting auxiliary assembly is provided on one side of the supporting die assembly, the resetting auxiliary assembly is used to assist in resetting the supporting die assembly, and the stamping die assembly is used to trigger the resetting auxiliary assembly to assist.

2. A punching machine according to claim 1, characterized in that: The punching body also includes a main frame (2), the processing table (1) is fixed on the main frame (2), and retaining frames (8) are fixedly provided on two sides of the processing table (1) that are away from each other.

3. A punching machine according to claim 2, characterized in that: The supporting mold assembly comprises a base (3), the base (3) slides on the upper side of the processing table (1), the upper side of the base (3) is in contact with a lower mold (4), a plurality of tension springs (5) are fixedly provided between the lower side of the lower mold (4) and one side of the base (3), a plurality of limit blocks (6) are fixedly provided on the upper side of the base (3), connecting plates (7) are fixedly provided on two sides away from each other of the lower mold (4), a plurality of guide holes are provided on the lower side of the connecting plate (7), the limit blocks (6) slide on the inner side of the guide holes, and a handle (9) is fixedly provided on one side of the connecting plate (7).

4. A punching machine according to claim 3, characterized in that: The intermittent moving assembly comprises a connecting shaft (10) and a second gear (14). A connecting frame (11) is rotatably provided on the outer periphery of the connecting shaft (10). The connecting frame (11) is fixed on one side of the processing table (1). A first gear (12) is fixed on the outer periphery of the connecting shaft (10). A first rack (13) is fixed on the lower side of the other connecting plate (7). The first rack (13) can be contacted and meshed with the first gear (12) for transmission connection. The connecting shaft (10) is located at the second gear. A one-way driving component is provided inside the wheel (14), between the second gear (14) and the connecting shaft (10), a lifting square tube (15) is slidably provided on one side of the main frame (2), a second rack (16) is fixedly provided on one side of the lifting square tube (15), the second rack (16) can be contacted and meshed with the second gear (14) for transmission connection, a driving rod (17) is slidably provided on the inner side of the lifting square tube (15), and the lifting square tube (15) and the driving rod (17) are detachably connected by bolts.

5. A punching machine according to claim 4, characterized in that: The one-way driving assembly comprises two rotating rings (18), the rotating rings (18) being fixed on the inner side of the second gear (14), the rotating rings (18) rotating on the outer periphery of the connecting shaft (10), a ratchet (19) being fixedly provided on the outer periphery of the connecting shaft (10), a plurality of one-way teeth (20) being rotatably provided on the inner side of the second gear (14), the one-way teeth (20) being in contact with the outer periphery of the ratchet (19), and a spring (21) being fixedly provided between one side of the one-way teeth (20) and the inner side of the second gear (14).

6. A punching machine according to claim 4, characterized in that: The stamping die assembly comprises a hydraulic cylinder (22), a mounting hole is provided on the upper side of the main frame (2), the hydraulic cylinder (22) is fixed on the inner side of the mounting hole, a force dissipation frame (23) is fixed on the axial end of the hydraulic cylinder (22), a lifting seat (24) and a material pressing head (25) are fixed on the lower side of the force dissipation frame (23) in sequence, the lifting seat (24) slides on one side of the main frame (2), and the driving rod (17) is fixed on one side of the lifting seat (24).

7. A punching machine according to claim 6, characterized in that: The riveting auxiliary component comprises an auxiliary bottom die (26), a connecting seat (29), and a connecting bolt (31). The auxiliary bottom die (26) contacts the inner wall of the lower die (4). Two sides of the auxiliary bottom die (26) are fixed with plugs (27) at a distance from each other. Two sides of the lower die (4) are fixed with a plurality of positioning sleeves (28). The plug (27) is inserted and disassembled into the positioning sleeve (28). The pressing head (25) is disassembled on the inner side of the connecting seat (29). A riveting pressing head (30) is fixed on the lower side of the connecting seat (29). Two sides of the connecting seat (29) are provided with through holes. One side of the lifting seat (24) is provided with a plurality of connecting holes (32). The connecting bolt (31) is disassembled on the inner side of the through hole and one of the connecting holes (32). A connecting nut (33) is provided on the outer periphery of the connecting bolt (31) through a threaded connection.

8. A punching machine according to claim 6, characterized in that: The reset auxiliary component comprises a pulling rod (34), wherein the pulling rod (34) is fixed on one side of the lifting seat (24), a lifting frame (35) is slidably provided on one side of the main frame body (2), and a long sliding groove (36) is provided on one side of the other connecting plate (7), and the lifting frame (35) slides on the inner side of the long sliding groove (36), and the upper side of the bottom of the pulling rod (34) can contact the lower side of the lifting frame (35).

9. A punching method for a punching machine according to any one of claims 1 to 8, characterized in that: The following steps are involved: S1. Selectively use riveting auxiliary components according to needs; S2. Adjust the intermittent moving components according to the needs; S3, automatically and continuously riveting the workpiece by cooperating with the stamping die assembly, the supporting die assembly, the intermittent moving assembly and the riveting auxiliary assembly, or automatically and continuously forging and extending the workpiece by cooperating with the stamping die assembly, the supporting die assembly and the intermittent moving assembly; S4. After the processing is completed, the support mold assembly is reset by cooperating with the stamping mold assembly and the reset auxiliary assembly.

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