Intelligent stamping device and stamping method

Abstract

The invention relates to the technical field of stamping devices, and discloses an intelligent stamping device and a stamping method, and the intelligent stamping device comprises a hydraulic telescopic stamping mechanism and a hydraulic strength control mechanism. According to the intelligent punching device and the punching method, liquid pressure is used as a driving medium, the characteristic of stable punching is achieved, the device can control the maximum impact strength between the male die and the female die, and therefore on the basis that a metal plate can be fully bent, the punching efficiency is improved. The impact strength between the male die and the female die can be controlled within a reasonable range, then the negative influence of the male die and the female die caused by impact is weakened, in addition, the maximum impact strength of the device in the working state can be adjusted according to the actual hardness of the metal plate, and therefore the adaptability of the device in the working process is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of stamping devices, and particularly to an intelligent stamping device and a stamping method. Background Art

[0002] In the actual production process, in order to meet the requirements of hardware products, metal sheet parts such as thermos bottles and tableware are processed into bent shapes. Currently, most metal sheet parts are bent and stamped by stamping devices. During the stamping process, by means of the mutual extrusion of the punch and the die, the metal sheet part is forced to generate bending deformation, so as to achieve the purpose of bending the metal sheet part into a predetermined shape.

[0003] However, for the existing bending and stamping dies, since the stamping strength between the punch and the die cannot be effectively controlled, in order to ensure that the metal sheet part can be fully bent, the stamping strength between the two is often controlled within a large working range. Therefore, the impact force between the punch and the die is relatively large, and this impact force will cause corresponding impact deformation of the punch and the die, and will generate a large working noise. The maximum impact strength between the two cannot be adjusted according to the actual situation, and the adaptability is weak. Summary of the Invention

[0004] Aiming at the deficiencies of the prior art, the present invention provides an intelligent stamping device and a stamping method, which use liquid pressure as the driving medium, have the characteristics of stable stamping, and the device can control the maximum impact strength between the punch and the die, so that the metal sheet part can be fully bent, and at the same time, the impact strength between the punch and the die can be controlled within a reasonable range, thereby weakening the negative impact caused by the impact between the punch and the die. In addition, the device can adjust the maximum impact strength in its working state according to the actual hardness of the metal sheet part, so as to improve the adaptability of the equipment during operation, and solve the above technical problems.

[0005] To achieve the above object, the present invention provides the following technical solutions: An intelligent stamping device and a stamping method, comprising a bottom support substrate, a top support substrate directly above the bottom support substrate, a fixed female die fixedly installed on the upper surface of the bottom support substrate, a component installation opening provided at the center of the top support substrate, and a movable male die that matches the fixed female die and can bend a metal plate. It further includes a hydraulic telescopic stamping mechanism, which internally has a longitudinal hollow body fixedly installed in the component installation opening and in a hollow state, a piston body located inside the longitudinal hollow body and driving the movable male die to move downward under liquid pressure, and a first helical spring located inside the longitudinal hollow body and exerting an upward elastic pressure on the piston body; and a hydraulic strength control mechanism, which internally has a transverse hollow body fixedly installed on one side of the liquid inlet area of the longitudinal hollow body and in a hollow state, a contact plate located inside the transverse hollow body and capable of moving horizontally, a helical spring exerting an elastic pressure on the contact plate in the direction of the longitudinal hollow body, and a movable limiting plate capable of changing the elastic strength of the helical spring.

[0006] Preferably, the hydraulic telescopic stamping mechanism includes a longitudinal hollow body. The outer circumferential surface of the longitudinal hollow body is provided with a fixed ring structure for fixedly installing around the component installation opening. The interior of the longitudinal hollow body is provided with a longitudinal component activity cavity. The longitudinal hollow body is provided with a liquid limit flow cavity at the top of the longitudinal component activity cavity. The longitudinal hollow body is provided with a liquid circuit channel communicating with the external space at the top of the liquid limit flow cavity. The outer circumferential surface of the longitudinal hollow body is provided with a liquid discharge channel communicating with the external space and the liquid limit flow cavity. The bottom end of the longitudinal hollow body is provided with a rod perforation communicating with the external space and the bottom end of the longitudinal component activity cavity. A piston body capable of moving axially along the longitudinal component activity cavity is placed inside the longitudinal hollow body in the longitudinal component activity cavity. The bottom end of the piston body is fixedly installed with a longitudinal telescopic rod passing through the rod perforation. A first helical spring in a compressed state is sleeved around the rod body of the longitudinal telescopic rod inside the longitudinal component activity cavity. The bottom end of the longitudinal telescopic rod is fixedly installed with a movable male die.

[0007] Preferably, the cross-sectional structure of the rod perforation is the same as the cross-sectional structure of the longitudinal telescopic rod, both being polygonal structures, and the cross-sectional dimension of the rod perforation matches the cross-sectional dimension of the longitudinal telescopic rod.

[0008] Preferably, the hydraulic strength control mechanism includes a transverse hollow body. Inside the transverse hollow body, there is a transverse component moving cavity. One end of the transverse hollow body is provided with a docking pipe structure that is integrally structured with it and fixedly connected to the liquid discharge channel. Inside the docking pipe structure, there is a first liquid flow hole that connects the internal structure of the liquid discharge channel and one end of the transverse component moving cavity. The other end of the transverse hollow body is provided with an internal thread hole that connects the external space and the other end of the transverse component moving cavity. Inside the transverse hollow body and within the transverse component moving cavity, there is a contact plate that can move axially along the transverse component moving cavity. The edge part of the contact plate is provided with a plurality of concave structures for liquid flow, namely liquid flow grooves. The end face of the contact plate facing the first liquid flow hole is provided with a concave annular embedding groove. Inside the annular embedding groove of the contact plate, there is an annular sealing ring embedded. On the other end face of the contact plate, there is a helical spring in a compressed state. One end of the helical spring is provided with a moving limit plate that can move axially along the transverse component moving cavity. One end of the moving limit plate facing the internal thread hole is installed with a rotatable central connecting shaft through a bearing. One end of the central connecting shaft is fixedly installed with an external threaded rod that penetrates the internal thread hole, and the part of the external threaded rod penetrating the internal thread hole is connected through a threaded structure. The end of the external threaded rod located outside the transverse hollow body is fixedly installed with a rotating cap. The circumferential surface of the transverse hollow body is provided with a second liquid flow hole that connects the external space and the transverse component moving cavity.

[0009] Preferably, the thickness of the annular sealing ring is greater than the depth of the annular embedding groove, and the structural radius of the inner ring of the annular sealing ring is greater than the structural radius of the first liquid flow hole, and the structural radius of the outer ring of the annular sealing ring is less than the distance between the liquid flow groove and the axis of the contact plate.

[0010] Preferably, the threaded structure includes an internal thread structure provided in the internal thread hole and an external thread structure provided on the rod body of the external threaded rod, and the internal thread structure and the external thread structure are mutually matched.

[0011] Preferably, it further includes a stamping height adjustment mechanism, which internally includes a first external threaded rod and a second external threaded rod connected to the bottom support substrate and the top support substrate, a horizontal threaded sleeve that is threadedly connected to the first external threaded rod and the second external threaded rod and can change the distance between the first external threaded rod and the second external threaded rod when rotating, and a polygonal limit rod inserted at the axis of the first external threaded rod and the second external threaded rod to prevent relative rotation between the first external threaded rod and the second external threaded rod.

[0012] Preferably, the stamping height adjustment mechanism includes a horizontal threaded sleeve with a polygonal rotation structure on its outer circumferential surface for easy screwing, a first outer threaded rod, and a second outer threaded rod. One end of the horizontal threaded sleeve is provided with a first internal threaded cavity with a concave structure, and the other end of the horizontal threaded sleeve is provided with a second internal threaded cavity with a concave structure. The rod body of the first outer threaded rod is installed inside the first internal threaded cavity through a first threaded structure, and the rod body of the second outer threaded rod is installed inside the second internal threaded cavity through a second threaded structure. The opposite ends of the first outer threaded rod and the second outer threaded rod are provided with polygonal limiting cavities with a concave structure. A polygonal limiting rod inserted into the polygonal limiting cavity is fixedly installed at the center of the horizontal threaded sleeve. One end of the first outer threaded rod is provided with a first connecting plate integrally formed with it and fixedly connected to the upper surface of the bottom support substrate, and one end of the second outer threaded rod is provided with a second connecting plate integrally formed with it and fixedly connected to the lower surface of the top support substrate.

[0013] Preferably, the cross-sectional structure of the polygonal limiting cavity is the same as that of the polygonal limiting rod, both are polygonal structures, and the cross-sectional structure size of the polygonal limiting cavity matches the cross-sectional structure size of the polygonal limiting rod. Moreover, the first threaded structure includes an internal threaded structure provided inside the first internal threaded cavity and an external threaded structure provided on the rod body of the first outer threaded rod. The second threaded structure includes an internal threaded structure provided inside the second internal threaded cavity and an external threaded structure provided on the rod body of the second outer threaded rod, and the spiral direction of the first threaded structure is opposite to that of the second threaded structure.

[0014] Preferred usage method: S1. Maximum stamping strength adjustment: Rotate the rotating cap to adjust the maximum impact strength preset by the strength control mechanism to the maximum impact strength matching the current stamping material. S2. Hydraulic circuit connection: Connect the liquid circuit channel (65) to a hydraulic system capable of controlling the liquid flow rate and flow direction. Place the metal plate on the upper surface of the fixed die (3) according to the predetermined position, and start the hydraulic system. S3. Stamping: Liquid is injected into the liquid limiting flow cavity (64), and the liquid will generate a downward force on the piston body (68), forcing the piston body (68) to drive the moving punch (5) to move downward. When the moving punch (5) contacts the metal plate, the metal plate will be bent downward. If the real-time stamping strength is greater than the maximum impact strength, the strength control mechanism adjusts the liquid pressure on the piston body (68). S4. Discharging: After the stamping and bending are completed, control the liquid to flow back through the hydraulic system. Under the elastic action of the first spiral spring (610), the moving punch (5) returns to the initial position, and the finished product can be taken out.

[0015] Compared with the prior art, the present invention provides an intelligent stamping device and a stamping method, having the following beneficial effects: Using liquid pressure as the driving medium, it has the characteristic of stable stamping. Moreover, the device can control the maximum impact strength between the punch and the die, so that the metal sheet can be fully bent and the impact strength between the punch and the die can be controlled within a reasonable range, thereby reducing the negative impact caused by the impact between the punch and the die. In addition, the device can adjust the maximum impact strength in its working state according to the actual hardness of the metal sheet, thereby improving the adaptability of the equipment during operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a perspective view of the present invention; Figure 2 is a perspective sectional view of the present invention; Figure 3 is a perspective view of the hydraulic telescopic stamping mechanism in the present invention; Figure 4 is a perspective sectional view of the hydraulic telescopic stamping mechanism in the present invention; Figure 5 is a perspective view of the hydraulic strength control mechanism in the present invention; Figure 6 is a perspective sectional view of the hydraulic strength control mechanism in the present invention; Figure 7 is a perspective view of the stamping height adjustment mechanism in the present invention; Figure 8 is a perspective sectional view of the stamping height adjustment mechanism in the present invention.

[0017] Among them: 1. Bottom support substrate; 2. Top support substrate; 3. Fixed female die; 4. Component installation port; 5. Movable male die; 6. Hydraulic telescopic stamping mechanism; 61. Longitudinal hollow body; 62. Fixed ring structure; 63. Longitudinal component movable cavity; 64. Liquid limit flow cavity; 65. Liquid circuit channel; 66. Liquid discharge channel; 67. Rod body perforation; 68. Piston body; 69. Longitudinal telescopic rod; 610. First helical spring; 7. Hydraulic strength control mechanism; 71. Transverse hollow body; 72. Transverse component movable cavity; 73. Docking pipe structure; 74. First liquid flow hole; 75. Internal thread hole; 76. Contact plate; 77. Annular embedding groove; 78. Annular sealing ring; 79. Liquid flow groove; 710. Movable limit plate; 711. Helical spring; 712. Central connecting shaft; 713. External threaded rod; 714. Rotating cap; 715. Second liquid flow hole; 8. Stamping height adjustment mechanism; 81. Horizontal threaded sleeve; 82. First internal thread cavity; 83. Second internal thread cavity; 84. First thread structure; 85. Second thread structure; 86. First external threaded rod; 87. Second external threaded rod; 88. First connecting plate; 89. Second connecting plate; 810. Polygonal limit cavity; 811. Polygonal limit rod; 812. Polygonal rotation structure. Detailed implementation mode

[0018] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to 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 work shall fall within the protection scope of the present invention.

[0019] Please refer to Figure 1 and Figure 2 A kind of intelligent stamping device and stamping method, including a bottom support substrate 1, a top support substrate 2 located directly above the bottom support substrate 1, a fixed female die 3 fixedly installed on the upper surface of the bottom support substrate 1, a component installation port 4 arranged at the center of the top support substrate 2, and a movable male die 5 that matches the fixed female die 3 and can bend a metal plate. Place the metal plate on the upper surface of the fixed female die 3 at a predetermined position. When the movable male die 5 contacts the metal plate, the metal plate will be bent downward, thereby realizing the bending work of the metal plate.

[0020] In order to achieve the hydraulic stamping effect on the metal plate, please refer to Figure 1 、 Figure 2 、 Figure 3 and Figure 4, it is necessary to set up a hydraulic telescopic stamping mechanism 6, which internally has a longitudinal hollow body 61 fixedly installed in the component installation port 4 and hollow inside, a piston body 68 located inside the longitudinal hollow body 61 and driving the moving punch 5 to move downward under liquid pressure, and a first helical spring 610 located inside the longitudinal hollow body 61 and exerting an upward elastic pressure on the piston body 68. Connect the liquid circuit channel 65 to a hydraulic system that can control the liquid flow rate and flow direction. Start the hydraulic system to inject liquid into the liquid limiting flow cavity 64. The liquid will exert a downward force on the piston body 68, forcing the piston body 68 to drive the moving punch 5 to move downward, thereby achieving the hydraulic stamping effect on the metal plate. After the stamping and bending are completed, control the liquid to flow back through the hydraulic system. Under the elastic action of the first helical spring 610, the moving punch 5 returns to its initial position.

[0021] For the specific structure of the hydraulic telescopic stamping mechanism 6, please refer to Figure 3 and Figure 4 , including a longitudinal hollow body 61. The outer circumferential surface of the longitudinal hollow body 61 is provided with a fixed ring structure 62 for fixedly installing around the component installation port 4. The inside of the longitudinal hollow body 61 is provided with a longitudinal component activity cavity 63. The longitudinal hollow body 61 is provided with a liquid limiting flow cavity 64 at the top of the longitudinal component activity cavity 63. The longitudinal hollow body 61 is provided with a liquid circuit channel 65 communicating with the external space at the top of the liquid limiting flow cavity 64. The outer circumferential surface of the longitudinal hollow body 61 is provided with a liquid discharge channel 66 communicating with the external space and the liquid limiting flow cavity 64. The bottom end of the longitudinal hollow body 61 is provided with a rod perforation 67 communicating with the external space and the bottom end of the longitudinal component activity cavity 63. Inside the longitudinal hollow body 61 in the longitudinal component activity cavity 63, a piston body 68 capable of moving axially along the longitudinal component activity cavity 63 is placed. The bottom end of the piston body 68 is fixedly installed with a longitudinal telescopic rod 69 passing through the rod perforation 67. The structural shape of the cross-section of the rod perforation 67 is the same as that of the cross-section of the longitudinal telescopic rod 69, both being polygonal structures, and the structural dimensions of the cross-section of the rod perforation 67 match the structural dimensions of the cross-section of the longitudinal telescopic rod 69. A compressed first helical spring 610 is sleeved around the rod body of the longitudinal telescopic rod 69 inside the longitudinal component activity cavity 63. The bottom end of the longitudinal telescopic rod 69 is fixedly installed with a moving punch 5.

[0022] To achieve the control and adjustment functions of the maximum stamping strength, please refer to Figure 1 , Figure 2 , Figure 5 and Figure 6, it is necessary to set up a hydraulic strength control mechanism 7, which is internally provided with a transverse hollow body 71 fixedly installed on one side of the liquid inlet area of the longitudinal hollow body 61 and hollow inside, a contact plate 76 located inside the transverse hollow body 71 and capable of moving horizontally, a spiral spring 711 that exerts an elastic pressure on the contact plate 76 in the direction of the longitudinal hollow body 61, and a moving limit plate 710 that can change the elastic strength of the spiral spring 711. According to the maximum deformation pressure strength of the metal plate, rotate the rotating cap 714, and the moving limit plate 710 will move directionally, thereby generating pressure on the spiral spring 711, causing the elastic strength of the spiral spring 711 to change. The spiral spring 711 will in turn exert an elastic force on the contact plate 76, and this elastic force is the maximum impact strength Fmax of the equipment during operation. During operation, the liquid pressure will exert a force Fhydraulic on the contact plate 76. When Fhydraulic is greater than Fmax, it will cause the contact plate 76 to move. At this time, the excess liquid will be discharged outward along the gap, the liquid flow groove 79, and the second liquid flow hole 715, thereby reducing the negative impact caused by excessive impact force, and thus realizing the control and adjustment functions of the maximum stamping strength. Among them, the advantage of setting the liquid flow groove 79 on the circumferential surface of the contact plate 76 is that when the liquid force pushes the contact plate 76 to move slightly, the liquid can flow along the moving gap of the contact plate 76 and the liquid flow groove 79 to one side, thereby improving the accuracy and timeliness of discharging the liquid.

[0023] For the specific structure of the hydraulic strength control mechanism 7, please refer to Figure 5 and Figure 6, including a horizontal hollow body 71, inside which there is a horizontal component moving cavity 72. One end of the horizontal hollow body 71 is provided with a docking pipe structure 73 which is of an integral structure with it and fixedly connected to the liquid discharge channel 66. Inside the docking pipe structure 73, there is a first liquid flow hole 74 connecting the internal structure of the liquid discharge channel 66 and one end of the horizontal component moving cavity 72. The other end of the horizontal hollow body 71 is provided with an internal thread hole 75 connecting the external space and the other end of the horizontal component moving cavity 72. Inside the horizontal hollow body 71 and within the horizontal component moving cavity 72, there is a contact plate 76 that can move axially along the horizontal component moving cavity 72. The edge part of the contact plate 76 is provided with a plurality of concave structures for liquid flow, namely liquid flow grooves 79. The end face of the contact plate 76 facing the first liquid flow hole 74 is provided with a concave annular embedding groove 77. Inside the annular embedding groove 77 of the contact plate 76, there is an annular sealing ring 78 embedded. On the other end face of the contact plate 76, there is a helical spring 711 in a compressed state. One end of the helical spring 711 is provided with a moving limit plate 710 that can move axially along the horizontal component moving cavity 72. One end of the moving limit plate 710 facing the internal thread hole 75 is installed with a rotatable central connecting shaft 712 through a bearing. One end of the central connecting shaft 712 is fixedly installed with an external threaded rod 713 that penetrates the internal thread hole 75, and the part of the external threaded rod 713 penetrating the internal thread hole 75 is connected through a thread structure. One end of the external threaded rod 713 located outside the horizontal hollow body 71 is fixedly installed with a rotating cap 714. The circumferential surface of the horizontal hollow body 71 is provided with a second liquid flow hole 715 connecting the external space and the horizontal component moving cavity 72. The thickness of the annular sealing ring 78 is greater than the depth of the annular embedding groove 77, and the structural radius of the inner ring of the annular sealing ring 78 is greater than the structural radius of the first liquid flow hole 74. The structural radius of the outer ring of the annular sealing ring 78 is less than the distance between the liquid flow groove 79 and the axis of the contact plate 76. The thread structure includes an internal thread structure provided in the internal thread hole 75 and an external thread structure provided on the rod body of the external threaded rod 713, and the internal thread structure and the external thread structure match each other.

[0024] To adjust the effective bending gap according to the thickness of the metal plate to be stamped, please refer to Figure 1 , Figure 2 , Figure 7 and Figure 8, it is necessary to set up a stamping height adjustment mechanism 8, which internally has a first external threaded rod 86 and a second external threaded rod 87 connected to the bottom support substrate 1 and the top support substrate 2, a horizontal threaded sleeve 81 that is threadedly connected to the first external threaded rod 86 and the second external threaded rod 87 and can change the distance between the first external threaded rod 86 and the second external threaded rod 87 when rotating, and a polygonal limiting rod 811 inserted at the axis of the first external threaded rod 86 and the second external threaded rod 87 to prevent relative rotation between the first external threaded rod 86 and the second external threaded rod 87. According to the thickness of the stamping metal plate, rotate the two polygonal rotating structures 812 synchronously. At this time, the horizontal threaded sleeve 81 will rotate in a specific direction. Since the cross-sectional structural shape of the polygonal limiting cavity 810 is the same as that of the cross-sectional structural shape of the polygonal limiting rod 811, both are polygonal structures, and the cross-sectional structural size of the polygonal limiting cavity 810 matches the cross-sectional structural size of the polygonal limiting rod 811, and the first threaded structure 84 includes an internal threaded structure provided inside the first internal threaded cavity 82 and an external threaded structure provided on the rod body of the first external threaded rod 86, the second threaded structure 85 includes an internal threaded structure provided inside the second internal threaded cavity 83 and an external threaded structure provided on the rod body of the second external threaded rod 87, and the spiral direction of the first threaded structure 84 is opposite to the spiral direction of the second threaded structure 85. At this time, the first external threaded rod 86 and the second external threaded rod 87 will move closer to or away from each other, and then adjust the effective bending gap according to the thickness of the stamping metal plate.

[0025] For the specific structure of the stamping height adjustment mechanism 8, please refer to Figure 7 and Figure 8 , including a horizontal threaded sleeve 81 with a polygonal rotating structure 812 that is convenient for screwing on its outer circumferential surface, a first external threaded rod 86, and a second external threaded rod 87. One end of the horizontal threaded sleeve 81 is provided with a first internal threaded cavity 82 with an inward concave structure, and the other end of the horizontal threaded sleeve 81 is provided with a second internal threaded cavity 83 with an inward concave structure. The rod body of the first external threaded rod 86 is installed inside the first internal threaded cavity 82 through a first threaded structure 84, and the rod body of the second external threaded rod 87 is installed inside the second internal threaded cavity 83 through a second threaded structure 85. The opposite ends of the first external threaded rod 86 and the second external threaded rod 87 are provided with a polygonal limiting cavity 810 with an inward concave structure. A polygonal limiting rod 811 inserted into the interior of the polygonal limiting cavity 810 is fixedly installed at the center of the horizontal threaded sleeve 81. One end of the first external threaded rod 86 is provided with a first connecting plate 88 integrally formed with it and fixedly connected to the upper surface of the bottom support substrate 1, and one end of the second external threaded rod 87 is provided with a second connecting plate 89 integrally formed with it and fixedly connected to the lower surface of the top support substrate 2.

[0026] In use, S1, maximum stamping strength adjustment: Rotate the rotating cap to adjust the maximum impact strength preset by the strength control mechanism to the maximum impact strength matching the current stamping material; S2, hydraulic circuit connection: Connect the liquid circuit channel (65) to a hydraulic system capable of controlling the liquid flow rate and flow direction. Place the metal plate on the upper surface of the fixed female die (3) at a predetermined position and start the hydraulic system; S3, stamping: Inject the liquid into the liquid limiting flow cavity (64). The liquid will generate a downward force on the piston body (68), forcing the piston body (68) to drive the moving punch (5) to move downward. When the moving punch (5) contacts the metal plate, the metal plate will be bent downward. If the real-time stamping strength is greater than the maximum impact strength, the strength control mechanism adjusts the liquid pressure on the piston body (68); S4, discharging: When the stamping and bending are completed, control the liquid to flow back through the hydraulic system. Under the elastic action of the first helical spring (610), the moving punch (5) returns to the initial position, and the finished product can be taken out.

[0027] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An intelligent stamping device, comprising a bottom supporting substrate (1), a top supporting substrate (2) located directly above the bottom supporting substrate (1), a fixed die (3) fixedly mounted on the upper surface of the bottom supporting substrate (1), a component mounting opening (4) arranged at the center of the top supporting substrate (2), and a movable punch (5) matching the fixed die (3) and capable of bending a metal plate, characterized in that: Also includes, A hydraulic telescopic stamping mechanism (6) is provided with a longitudinal hollow body (61) fixedly mounted in the component mounting opening (4) and having a hollow interior, a piston body (68) located inside the longitudinal hollow body (61) and driving the movable punch (5) to move downward when subjected to liquid pressure, and a No. 1 coil spring (610) located inside the longitudinal hollow body (61) and exerting an upward elastic pressure on the piston body (68); and a hydraulic strength control mechanism (7), wherein a transverse hollow body (71) is provided inside the mechanism, which is fixedly mounted on one side of the liquid inlet region of the longitudinal hollow body (61) and is hollow inside, a resistance plate (76) is located inside the transverse hollow body (71) and is capable of moving laterally, a coil spring (711) which exerts elastic pressure on the resistance plate (76) in the direction of the longitudinal hollow body (61), and a movable limit plate (710) which is capable of changing the elastic strength of the coil spring (711).

2. The intelligent stamping device according to claim 1, characterized in that: The hydraulic telescopic stamping mechanism (6) comprises a longitudinal hollow body (61), the outer circumferential surface of the longitudinal hollow body (61) is provided with a fixing ring structure (62) for fixing to the periphery of the component installation opening (4), the interior of the longitudinal hollow body (61) is provided with a longitudinal component activity cavity (63), the longitudinal hollow body (61) is provided with a liquid limiting flow cavity (64) at the top end of the longitudinal component activity cavity (63), the longitudinal hollow body (61) is provided with a liquid circuit channel (65) communicating with the external space at the top end of the liquid limiting flow cavity (64), and the longitudinal hollow body (61) is provided with a liquid circuit channel (65) communicating with the external space. 1) is provided with a liquid discharge channel (66) communicating with the external space and the liquid limiting flow chamber (64) on its outer circumferential surface; the bottom end of the longitudinal hollow body (61) is provided with a rod body through hole (67) communicating with the external space and the bottom end of the longitudinal component active chamber (63); the bottom end of the piston body (68) is fixedly mounted with a longitudinal telescopic rod (69) penetrating the rod body through hole (67); the longitudinal telescopic rod (69) is provided with a No. 1 coil spring (610) in a compressed state on the outer periphery of the rod body located inside the longitudinal component active chamber (63); and the bottom end of the longitudinal telescopic rod (69) is fixedly mounted with a movable punch (5).

3. The intelligent stamping device according to claim 2, characterized in that: The structural shape of the cross section of the rod body through hole (67) is consistent with the structural shape of the cross section of the longitudinal telescopic rod (69), both of which are polygonal structures, and the structural dimensions of the cross section of the rod body through hole (67) match the structural dimensions of the cross section of the longitudinal telescopic rod (69).

4. The intelligent stamping device according to claim 3, characterized in that: The hydraulic strength control mechanism (7) comprises a transverse hollow body (71), a transverse component active cavity (72) is arranged inside the transverse hollow body (71), a docking pipe structure (73) which is an integral structure with the transverse hollow body (71) and fixedly connected to the liquid discharge channel (66) is arranged at one end of the transverse hollow body (71), a first liquid flow hole (74) which communicates with the internal structure of the liquid discharge channel (66) and one end of the transverse component active cavity (72) is arranged inside the docking pipe structure (73), and the first liquid flow hole (74) which communicates with the internal structure of the liquid discharge channel (66) and one end of the transverse component active cavity (72) is arranged inside the transverse hollow body (71). The other end of the body (71) is provided with an internal threaded hole (75) communicating with the outside space and the other end of the transverse component active cavity (72); the transverse hollow body (71) is provided with a contact plate (76) capable of axial movement along the transverse component active cavity (72) inside the transverse component active cavity (72); the edge of the contact plate (76) is provided with a plurality of liquid flow grooves (79) with an inner concave structure for liquid flow; the end surface of the contact plate (76) facing the first liquid flow hole (74) is provided with a An annular embedding groove (77) of an inner concave structure, the abutment plate (76) is embedded with an annular sealing ring (78) inside the annular embedding groove (77), a helical spring (711) in a compressed state is arranged on the other end surface of the abutment plate (76), a movable limiting plate (710) capable of axial movement along the active cavity (72) of the transverse component is arranged on one end of the helical spring (711), and a central connecting member capable of rotation is installed on the end of the movable limiting plate (710) facing the inner threaded hole (75) through a bearing. A shaft (712), one end of the central connecting shaft (712) is fixedly mounted with an externally threaded rod (713) that passes through the internally threaded hole (75), and the portion where the externally threaded rod (713) passes through the internally threaded hole (75) is connected via a threaded structure, a rotating cap (714) is fixedly mounted on one end of the externally threaded rod (713) located outside the transverse hollow body (71), and a second liquid flow hole (715) that communicates with the external space and the transverse component active cavity (72) is provided on the circumferential surface of the transverse hollow body (71).

5. The intelligent stamping device according to claim 4, characterized in that: The thickness of the annular sealing ring (78) is greater than the depth of the annular embedding groove (77), and the structural radius of the inner ring of the annular sealing ring (78) is greater than the structural radius of the No. 1 liquid flow hole (74), and the structural radius of the outer ring of the annular sealing ring (78) is smaller than the distance between the liquid flow groove (79) and the axial center line of the contact plate (76).

6. The intelligent stamping device according to claim 5, characterized in that: The thread structure comprises an internal thread structure arranged in the internal thread hole (75) and an external thread structure arranged on the rod body of the external thread rod (713), and the internal thread structure and the external thread structure match each other.

7. An intelligent stamping device according to any one of claims 2 to 6, characterized in that: The invention also comprises a punching height adjustment mechanism (8), the interior of which is provided with a No. 1 externally threaded rod (86) and a No. 2 externally threaded rod (87) connected to the bottom support base plate (1) and the top support base plate (2), a horizontal threaded sleeve (81) threadedly connected to the No. 1 externally threaded rod (86) and the No. 2 externally threaded rod (87) and capable of changing the distance between the No. 1 externally threaded rod (86) and the No. 2 externally threaded rod (87) when rotating, and a polygonal limit rod (811) inserted into the axis of the No. 1 externally threaded rod (86) and the No. 2 externally threaded rod (87) and capable of preventing the No. 1 externally threaded rod (86) and the No. 2 externally threaded rod (87) from rotating relative to each other.

8. The intelligent stamping device according to claim 7, characterized in that: The punching height adjustment mechanism (8) comprises a horizontal threaded sleeve (81) having an outer circumferential surface provided with a polygonal rotating structure (812) for easy screwing, a No. 1 external threaded rod (86) and a No. 2 external threaded rod (87), one end of the horizontal threaded sleeve (81) is provided with a No. 1 internal threaded cavity (82) with an inner concave structure, and the other end of the horizontal threaded sleeve (81) is provided with a No. 2 internal threaded cavity (83) with an inner concave structure, the rod body of the No. 1 external threaded rod (86) is installed inside the No. 1 internal threaded cavity (82) via the No. 1 threaded structure (84), and the rod body of the No. 2 external threaded rod (87) is installed inside the No. 1 internal threaded cavity (82) via the No. 2 threaded structure (85). Inside the No. 2 internal thread cavity (83), the No. 1 external thread rod (86) and the No. 2 external thread rod (87) are provided with a polygonal limiting cavity (810) with an inner concave structure at opposite ends, and a polygonal limiting rod (811) inserted into the polygonal limiting cavity (810) is fixedly installed at the center of the horizontal thread sleeve (81), and one end of the No. 1 external thread rod (86) is provided with a No. 1 connecting plate (88) which is an integral structure with it and fixedly connected to the upper surface of the bottom support base plate (1), and one end of the No. 2 external thread rod (87) is provided with a No. 2 connecting plate (89) which is an integral structure with it and fixedly connected to the lower surface of the top support base plate (2).

9. The intelligent stamping device according to claim 8, characterized in that: The structural shape of the cross section of the polygonal limiting cavity (810) is consistent with the structural shape of the cross section of the polygonal limiting rod (811), and both are polygonal structures. The structural dimensions of the cross section of the polygonal limiting cavity (810) match the structural dimensions of the cross section of the polygonal limiting rod (811), and the No. 1 thread structure (84) includes an internal thread structure arranged inside the No. 1 internal thread cavity (82) and an external thread structure arranged on the rod body of the No. 1 external thread rod (86). The No. 2 thread structure (85) includes an internal thread structure arranged inside the No. 2 internal thread cavity (83) and an external thread structure arranged on the rod body of the No. 2 external thread rod (87), and the spiral direction of the No. 1 thread structure (84) is opposite to the spiral direction of the No. 2 thread structure (85).

10. A stamping method of an intelligent stamping device according to claim 9, characterized in that: The following steps are included: S1. Maximum punching strength adjustment: Turn the rotating cap to adjust the maximum impact strength preset by the strength control mechanism to the maximum impact strength that matches the current punching material; S2, hydraulic circuit connection: connecting the liquid circuit channel (65) to a hydraulic system capable of controlling the flow amount and flow direction of the liquid, placing the metal plate on the upper surface of the fixed die (3) according to a predetermined position, and starting the hydraulic system; S3, stamping: liquid is injected into the liquid limiting flow chamber (64), and the liquid exerts a downward force on the piston body (68), forcing the piston body (68) to drive the movable punch (5) to move downward. When the movable punch (5) contacts the metal plate, the metal plate is bent downward. If the real-time stamping strength is greater than the maximum impact strength, the strength control mechanism adjusts the liquid pressure of the piston body (68); S4, discharging: After the stamping and bending is completed, the hydraulic system controls the liquid to flow back, and under the elastic action of the No. 1 spiral spring (610), the moving punch (5) is reset to the initial position, and the finished product can be taken out.

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