Punching equipment for forging round steel

Abstract

The invention belongs to the technical field of punching equipment, and particularly discloses forged round steel punching equipment which comprises a workbench, a rack and a lower die which are arranged on the workbench, and a punch which is arranged on the rack and driven by an air cylinder above the rack, translation assemblies are arranged on the two sides of the workbench, and a supporting ring is arranged between the punch and the lower die. The supporting ring is connected with the translation assembly to achieve linkage translation, the supporting ring is provided with three centering clamping and rotating mechanisms in a circumferential array mode along the axis of the supporting ring, each centering clamping and rotating mechanism comprises a rotating shaft, a swing arm and a roller, the rotating shafts are rotationally arranged on the supporting ring in a clamped mode, one end of each swing arm is rotationally arranged on the corresponding rotating shaft, and the rollers are rotationally arranged at the other ends of the swing arms in pairs at intervals. After one-time centering and clamping, the continuous punching device can accurately rotate around the center of the disc-shaped piece to achieve continuous punching, meanwhile, the distance between the hole position and the center of the disc-shaped piece can be adjusted, the workpiece can be lifted away from the lower die during rotation to eliminate resistance, and therefore the error problem caused by repeated clamping and positioning in the prior art is solved.

Description

Technical Field

[0001] The invention belongs to the technical field of punching equipment, and in particular relates to a forged round steel punching equipment. Background Art

[0002] In fields such as heavy machinery, automobiles, rail transportation, and energy equipment, disc-shaped or ring-shaped parts such as flanges, gear blanks, and bearing rings are widely used key basic components. These components are usually made of high-quality round steel as raw material. Through thermoplastic forming processes such as heating and forging, their internal structure becomes denser and their mechanical properties are significantly improved. In a typical production process, the long round steel strips after forging need to go through a blanking process, such as using a band saw or shearing equipment to cut them into disc blanks of predetermined thickness (hereinafter referred to as "disc-shaped parts") for subsequent finishing.

[0003] Punching is a key process in the subsequent finishing of disc-shaped parts. Its purpose is to prepare through holes on the disc-shaped parts, such as connection holes for installing bolts or process holes for reducing weight. The basic steps of traditional punching operations are: place the disc-shaped part on the lower die of the punching machine worktable, align the position to be punched with the punch above through manual operation or a simple feeding device, and the punch moves downward through the disc-shaped part and enters the lower die, thereby forming a hole on the disc-shaped part. However, with the continuous improvement of the requirements for the precision of parts in modern manufacturing, if it is necessary to process multiple holes on the disc-shaped part with its geometric center as the center of the circle and evenly distributed along the circumference or in an array at a specific angle, the existing technology has the following difficult-to-overcome technical bottlenecks: In the stamping process, to ensure uniformity in the blanking gap and cross-sectional quality of the punched holes, the relative position of the punch head and the lower die of the punch press remains constant throughout its working stroke. This means that to punch multiple holes in different positions on a disc, the disc itself must be moved. In practice, operators often pre-scribe lines on the workpiece, then align the punch head visually or with the help of simple positioning blocks, and then complete the punching process one by one. This manual positioning method is not only labor-intensive and inefficient, but more importantly, its positioning accuracy depends entirely on the operator's proficiency and sensory judgment, which is prone to large positioning errors and cumulative errors. For precision parts with strict requirements for hole position, hole center distance, and symmetry relative to the center of the disc, this method cannot meet the high-quality production requirements.

[0004] In order to solve the above-mentioned problem of center positioning, the industry has also tried to adopt some positioning tooling, such as using a three-jaw chuck or a special centering fixture to clamp the disc-shaped part to ensure that the geometric center of the disc-shaped part coincides with a certain reference of the mold. In theory, accurate circular distribution positioning can be achieved through this geometric center. However, the existing centering device usually only has static centering and clamping functions, and does not integrate a precise angle rotation mechanism that can be linked with the stamping action. After each hole is stamped, the operator must first loosen the fixture, manually rotate the disc-shaped part by an angle, and then re-clamp it. This will make the process extremely inconsistent and the operation cumbersome, greatly reducing production efficiency, and each re-clamping will inevitably introduce secondary positioning errors of the angle. Summary of the Invention

[0005] In response to the above situation, the present invention provides a forged round steel punching device, which can accurately rotate around the center of the disk-shaped part to achieve continuous punching after one-time centering clamping. At the same time, it can adjust the distance between the hole position and the center of the disk-shaped part, and the workpiece can be lifted away from the lower die during rotation to eliminate resistance, thereby solving the error problem caused by repeated clamping and positioning in the existing technology, and greatly improving processing accuracy and production efficiency.

[0006] The technical solution adopted by the present invention is as follows: The present invention proposes a forged round steel punching device, which includes a workbench, a frame and a lower die arranged on the workbench, and a punch arranged on the frame and driven by an upper cylinder.

[0007] Furthermore, translation assemblies are provided on both sides of the workbench, which are used to accurately adjust the radial position of the workpiece, thereby achieving variability in the punching pitch diameter. A support ring is provided between the punch and the lower die, and the support ring is connected to the translation assembly to achieve linked translation.

[0008] Furthermore, the support ring is provided with three centering clamping rotating mechanisms in a circular array along its axis. This three-point array layout can stably and reliably realize automatic centering of the circular workpiece. The centering clamping rotating mechanism includes a rotating shaft, a swing arm and a roller. The rotating shaft is engaged and rotatably arranged on the support ring, one end of the swing arm is rotatably arranged on the rotating shaft, and the rollers are rotatably arranged in pairs at the other end of the swing arm.

[0009] Furthermore, the centering clamping rotation mechanism also includes a first sprocket coaxially fixed to the middle of the rotating shaft and a second sprocket coaxially fixed between two rollers set at intervals. The first sprocket and the second sprocket are connected by a first chain transmission. This built-in chain transmission structure cleverly and accurately transmits the rotation of the rotating shaft to the roller, which is the key to achieving synchronous rotation of the workpiece. One end and the side of the swing arm are provided with a receiving groove for accommodating the first sprocket and the first chain. This design makes the transmission structure built-in, the structure is more compact and not easily interfered with by external connection structures.

[0010] Furthermore, a retaining ring is coaxially engaged and rotatable in the support ring, and a mounting ring is coaxially and fixedly provided on the lower side of the retaining ring. The centering clamping rotation mechanism also includes a square frame rotatably arranged between the retaining ring and the mounting ring, and the swing arm is passed through the square frame.

[0011] Furthermore, it also includes a lifting and releasing mechanism for lifting the workpiece away from the lower die before the workpiece rotates. This mechanism cleverly utilizes the stamping action itself as a power source, achieving energy saving and structural simplification. The movement of the lifting and releasing mechanism is driven by the lifting and lowering of the punch. The lifting and releasing mechanism includes a lifting rod fixedly connected to the punch and an inverted T-shaped rod symmetrically arranged at both ends of the lifting rod; the inverted T-shaped rod is provided with a vertical channel for the lifting rod end to engage and slide, and a horizontal channel for the translation block fixed to the support ring to engage and slide; when the punch rises to the highest point, the lifting rod abuts against the top of the vertical channel to lift the inverted T-shaped rod, and then lifts the support ring through the translation block. This design ensures that the workpiece can be reliably separated from the lower die before rotation or translation, thereby eliminating friction resistance and creating a prerequisite for subsequent precise positioning.

[0012] Furthermore, a limit block is provided on the translation portion of the translation assembly, and a lifting cover is provided on the lower side of the translation block. The lifting cover is sleeved on the limit block, and the lifting cover allows the translation block to move relative to the limit block in the vertical direction.

[0013] Furthermore, it also includes a clamping drive mechanism for driving the swing arm to swing synchronously, which can generate a huge, self-locking clamping force through manual or simple power input. The clamping drive mechanism includes a screw arranged below the support ring, a nut member threadedly connected to the screw, and a limit member for the screw to engage and rotate. One end of the limit member is rotatably connected to the support ring, and one end of the nut member is rotatably connected to the connecting member of the retaining ring. A rocker is provided at the end of the screw, and the clamping drive mechanism drives the retaining ring and the mounting ring to rotate relative to the support ring.

[0014] Furthermore, it also includes a rotation drive mechanism for driving the rollers to rotate synchronously to drive the clamped workpiece to rotate, the rotation drive mechanism includes a servo motor arranged on the support ring, a third sprocket coaxially fixed to one end of the rotating shaft, and a second chain connecting all the third sprockets, the output end of the servo motor is coaxially fixedly connected to one of the rotating shafts, the use of the servo motor ensures high precision and programmability of the rotation angle, and the chain drive ensures the synchronous rotation of all clamping points, thereby driving the workpiece as a whole to rotate accurately without slipping.

[0015] Furthermore, the line connecting the axis of the support ring and the axis of the punch projected on the horizontal plane is parallel to the translation direction of the translation assembly. This geometric layout ensures that the adjustment by the translation assembly is purely radial distance, simplifies the control logic, and ensures the accuracy of the punching position.

[0016] The beneficial effects achieved by the present invention using the above structure are as follows: (1) The present invention sets up mutually coordinated clamping, translation, rotation and lifting mechanisms, which can realize automatic punching operations of any radius and any angle around the center of the workpiece after a one-time precise clamping and positioning. Specifically, the clamping drive mechanism drives the three centering clamping and rotating mechanisms to move synchronously, which can quickly realize automatic centering and reliable clamping of the disc-shaped parts, eliminating the errors caused by manual centering. On this basis, the rotation drive mechanism driven by the servo motor can drive the clamped workpiece to perform programmed precise rotation, and the translation component is responsible for accurately adjusting the radial distance between the punch and the center of the workpiece. This design completely solves the secondary positioning error and cumulative error caused by repeated loosening, manual rotation and re-clamping in the background technology, and can meet the strict requirements of high-precision parts for the position, hole center distance and symmetry of the holes.

[0017] (2) The present invention realizes the fully automatic and efficient linkage of key processes such as punching, lifting, rotation or translation, which significantly improves production efficiency. The designed lifting and releasing mechanism uses the lifting power of the punch itself, and through the linkage of the lifting rod and the inverted T-bar, the clamped workpiece together with the entire support ring assembly is automatically lifted away from the lower die after each punching is completed and before rotation or translation. This "lifting" action eliminates the friction resistance between the workpiece and the lower die, creating ideal conditions without interference for subsequent high-precision rotation and distance adjustment, and automatically releases the workpiece back to the lower die when the punch moves downward. The whole process is seamlessly connected without the need for any additional power source or manual intervention, and the originally independent processes are efficiently and concisely integrated into a coherent automated operation process.

[0018] (3) The present invention has strong versatility and processing flexibility, and can adapt to disc-shaped parts of different specifications and diversified punching process requirements. The swing arm is driven by the clamping drive mechanism to swing over a wide range, so that the centering clamping rotation mechanism can clamp disc-shaped parts of different outer diameters. There is no need to replace the entire set of fixtures for workpieces of different sizes. The rotation drive mechanism driven by the servo motor can realize programming control at any angle, and can not only complete the punching of equally divided circular arrays, but also complete the layout of non-equally divided complex angles. Therefore, this equipment can be quickly adjusted to adapt to the production of new products without replacing the core components, avoiding the huge cost and time investment of customizing special molds or tooling for different products in traditional processes, and greatly enhancing the flexible production capacity of the production line. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the three-dimensional structure of a forged round steel punching device proposed by the present invention.

[0020] Figure 2 This is a structural schematic diagram of the lower die of a forged round steel punching device proposed by the present invention.

[0021] Figure 3 for Figure 1 Enlarged view of part A.

[0022] Figure 4 This is a schematic diagram of the exploded structure of the positional relationship between the lower die and the support ring of a forged round steel punching device proposed by the present invention.

[0023] Figure 5 for Figure 4 Enlarged view of part B.

[0024] Figure 6 This is a structural schematic diagram of the positional relationship between the frame and the mounting ring of a forged round steel punching device proposed by the present invention.

[0025] Figure 7 This is a schematic diagram of the exploded structure of the positional relationship between the support ring and the clamping ring of a forged round steel punching device proposed by the present invention.

[0026] Figure 8 This is a structural schematic diagram of a centering, clamping and rotating mechanism for a forged round steel punching device proposed in the present invention.

[0027] Figure 9 This is a structural schematic diagram of the position relationship between the swing arm and roller of a forged round steel punching equipment proposed by the present invention.

[0028] Figure 10 for Figure 4 Enlarged view of part C in the middle.

[0029] Among them, 1. workbench, 11. frame, 12. cylinder, 13. punch, 14. lower die, 2. translation assembly, 21. limit block, 3. support ring, 31. translation block, 32. lifting cover, 4. retaining ring, 41. mounting ring, 5. centering clamping and rotating mechanism, 51. rotating shaft, 52. swing arm, 53. receiving groove, 54. frame, 55. roller, 56. first sprocket, 57. second sprocket, 58. first chain, 6. clamping drive mechanism, 61. limit member, 62. nut member, 63. screw, 64. rocker, 7. rotation drive mechanism, 71. servo motor, 72. third sprocket, 73. second chain, 8. lifting and releasing mechanism, 81. lifting rod, 82. inverted T-bar, 83. horizontal channel, 84. vertical channel.

[0030] The accompanying drawings are used to provide further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the embodiments of the present invention and do not constitute a limitation of the present invention. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the present invention will be clearly and completely described 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; based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0032] In the description of the present invention, it should be understood that terms such as "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside" and "outside" indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they should not be understood as limiting the present invention.

[0033] like Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 、 Figure 6 、 Figure 7 、 Figure 8 、 Figure 9 、 Figure 10 As shown, the present invention proposes a forged round steel punching device, whose basic structure includes a workbench 1, on which a lower die 14 and a frame 11 are fixedly provided, and a cylinder 12 is installed on the frame 11, which is used to drive a punch 13 to perform a reciprocating punching motion up and down.

[0034] In order to achieve precise positioning and movement of the disc-shaped workpiece, translation components 2 are symmetrically provided on both sides of the workbench 1. In this embodiment, the translation component 2 can adopt a precision transmission mechanism such as a ball screw to achieve high-precision linear translation. A limit block 21 is fixed on the moving part of the translation component 2, that is, the translation part.

[0035] In the operating space between the punch 13 and the lower die 14, there is a core workpiece clamping and transmission assembly, the basis of which is a support ring 3, with translation blocks 31 fixed on both sides of the support ring 3, and a lifting cover 32 provided on the lower side of each translation block 31, which is sleeved on the limit block 21. This connection method enables the support ring 3 to perform synchronous horizontal translation with the translation assembly 2, while allowing it to freely rise and fall relative to the limit block 21 in the vertical direction. In order to ensure the radial adjustability of the punching position, the layout of the present invention ensures that the projection line of the axis of the support ring 3 and the axis of the punch 13 on the horizontal plane is always parallel to the translation direction of the translation assembly 2.

[0036] In order to realize automatic centering, clamping and rotation of the disc-shaped workpiece, a set of precise centering, clamping and rotating mechanisms 5 are integrated on the support ring 3. Specifically, a clamping ring 4 is provided on the inner side of the support ring 3 for coaxial engagement and rotation, and a mounting ring 41 is fixed coaxially and at intervals on the lower side of the clamping ring 4 through a number of connecting rods. On the support ring 3, three centering, clamping and rotating mechanisms 5 are arranged in a circular array along its axial center line.

[0037] Each centering clamping rotation mechanism 5 includes a rotating shaft 51, which is engaged and rotatably penetrates the support ring 3. One end of a swing arm 52 is rotatably provided on the rotating shaft 51. Between the clamping ring 4 and the mounting ring 41, a square frame 54 is rotatably provided. The middle part of the swing arm 52 is passed through the frame 54. The other end of the swing arm 52 is rotatably provided with two rollers 55 set at intervals. These two rollers 55 are used to directly contact and clamp the disc-shaped workpiece. In order to achieve synchronous rotation of the workpiece, a first sprocket 56 is coaxially fixed to the middle part of the rotating shaft 51, and a second sprocket 57 is coaxially fixed between the two rollers 55. The first sprocket 56 and the second sprocket 57 are connected by a first chain 58. In order to make the structure compact, a receiving groove 53 is provided at one end and side of the swing arm 52 for accommodating the first sprocket 56 and the first chain 58, so that the transmission mechanism is built into the swing arm 52.

[0038] The present invention also includes a clamping drive mechanism 6 for driving the centering clamping rotation mechanism 5 to achieve synchronous clamping. The mechanism includes a screw 63, the end of which is provided with a rocker 64 for easy operation. The screw 63 is engaged and rotated through a limiter 61. One end of the limiter 61 is rotatably connected to the support ring 3. The screw 63 is threadedly connected to a nut member 62. One end of the nut member 62 is rotatably connected to the connecting member on the outside of the clamping ring 4. By rotating the rocker 64, the screw 63 drives the nut member 62 to move along its axial direction, from By changing the distance between the limiter 61 and the nut 62, the retaining ring 4 and the mounting ring 41 are driven to rotate relative to the support ring 3. The rotational connection between the nut 62 and the limiter 61 enables the screw 63 to adapt to the angle change corresponding to the rotation. This rotation is transmitted to the swing arm 52 through the square frame 54, causing it to swing with the rotating shaft 51 as the fulcrum, thereby driving the roller 55 to tighten toward the center or loosen toward the outside, thereby realizing synchronous clamping or release of the workpiece. The screw 63 has a self-locking function to ensure the stability of the clamping state.

[0039] In order to drive the workpiece to rotate precisely after punching, the present invention also includes a rotation drive mechanism 7, which includes a servo motor 71 arranged on the support ring 3, and a third sprocket 72 is coaxially fixed to one end of the rotating shaft 51 of each centering clamping rotation mechanism 5, and all third sprockets 72 are connected through a closed-loop second chain 73. The output end of the servo motor 71 is coaxially fixed to one of the rotating shafts 51. When the servo motor 71 is started, it drives all three rotating shafts 51 to achieve precise synchronous rotation through the second chain 73. Since the rotating shaft 51 is rotatable relative to the swing arm 52, when the swing arm 52 is locked in position by the clamping drive mechanism 6 (that is, the workpiece is clamped), the rotation of the rotating shaft 51 will drive the roller 55 to rotate through the internal first chain 58, thereby driving the clamped workpiece to rotate synchronously by a preset angle.

[0040] In addition, in order to eliminate the frictional resistance between the workpiece and the lower die 14 before the workpiece rotates, the present invention has designed an ingenious lifting and releasing mechanism 8, the movement of which is driven by the lifting and lowering of the punch 13. Specifically, a lifting rod 81 symmetrically arranged on both sides of the punch 13 is fixedly connected to the punch 13, and two inverted T-shaped rods 82 are provided. The vertical part of the inverted T-shaped rod 82 is provided with a vertical channel 84 for the end of the lifting rod 81 to engage and slide, and the horizontal part is provided with a horizontal channel 83 for the translation block 31 on the support ring 3 to engage and slide.

[0041] The specific working process is as follows: Preparation and loading: First, adjust and fasten the lower die 14 to the appropriate position of the workbench 1 so that its cutting hole is facing the punch 13. At this time, ensure that the centering clamping and rotating mechanism 5 is in the expanded state and the punch 13 is not at the highest point, so the lifting rod 81 is in a non-contact state in the vertical channel 84, and the inverted T-shaped rod 82 and the entire support ring 3 assembly connected to it fall due to gravity, so that the bottom surface of the mounting ring 41 is close to the lower die 14, and the forged round steel disc to be processed is placed between the rollers 55 of the three centering clamping and rotating mechanisms 5 and falls on the lower die 14.

[0042] Centering and clamping: The operator shakes the rocker 64 of the clamping drive mechanism 6 to drive the screw 63 to rotate, causing the retaining ring 4 and the mounting ring 41 to rotate relative to the support ring 3. This action drives the three swing arms 52 to swing inward synchronously through the box 54 until the rollers 55 at their ends clamp the disc and automatically align it with the geometric center. The self-locking property of the screw 63 can maintain the clamping force.

[0043] Lifting and adjusting the distance: Control the cylinder 12 to lift the punch 13 to the highest point of its stroke. At the end of the lifting process, the lifting rod 81 on the punch 13 will abut the top of the vertical channel 84 of the inverted T-shaped rod 82, thereby lifting the inverted T-shaped rod 82 upward for a short distance. Since the translation block 31 is stuck in the horizontal channel 83 of the inverted T-shaped rod 82, the support ring 3, the centering clamping rotation mechanism 5 and the clamped disc-shaped part will be lifted synchronously as a whole and break away from the contact with the lower mold 14. Then, start the translation assembly 2, and drive the entire support ring 3 assembly to translate through the limit block 21 and the lifting cover 32. At this time, the translation block 31 slides freely in the horizontal channel 83 without restraint. Through translation, the axis of the disc-shaped part is moved to a preset length from the axis of the punch 13, that is, the punching radius.

[0044] First punching: After the radial distance is positioned, the cylinder 12 drives the punch 13 downward. As the punch 13 descends, the lifting rod 81 moves downward in the vertical channel 84, releasing the inverted T-shaped rod 82. The disc-shaped part falls back smoothly under the action of gravity and contacts the lower die 14. The punch 13 continues to descend to complete the punching operation of the first hole.

[0045] Rotation and cyclic punching: After the first hole is punched, the punch 13 is lifted to the highest point again by the cylinder 12, and as described in the lifting and distance adjustment steps, the disc-shaped part and the clamping mechanism are lifted off the lower die 14 again. At this time, the servo motor 71 of the rotation drive mechanism 7 is started. According to the preset program, the servo motor 71 drives all the rotating shafts 51 to rotate synchronously, and then drives the disc-shaped part to rotate precisely by an angle through the roller 55. After the angle is positioned, the punching operation is performed again, and this cycle is repeated until all the preset circular array holes are processed on the disc-shaped part. The program of the servo motor 71 can also be set to produce non-uniform punching to meet special processing requirements.

[0046] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0047] While the embodiments of the present invention have been shown and described, it will be apparent to those skilled in the art that various changes, modifications, substitutions, and alterations can be made to the embodiments without departing from the principles and spirit of the invention.

[0048] The present invention and its embodiments are described above. This description is not restrictive. The drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. In short, if a person skilled in the art is inspired by this and, without departing from the purpose of the present invention, designs structures and embodiments similar to this technical solution without inventiveness, they shall fall within the scope of protection of the present invention.

Claims

1. A forged round steel punching device, comprising a workbench (1), a frame (11) and a lower die (14) arranged on the workbench (1), and a punch (13) arranged on the frame (11) and driven by an upper cylinder (12), characterized in that: Also includes: Translational components (2) provided on both sides of the workbench (1); A support ring (3) is provided between the punch (13) and the lower die (14), wherein the support ring (3) is connected to the translation assembly (2) to achieve linked translation; Three centering clamping rotating mechanisms (5) are arranged in a circular array along the axis of the support ring (3), the centering clamping rotating mechanism (5) comprising a rotating shaft (51), a swing arm (52) and a roller (55), the rotating shaft (51) being arranged on the support ring (3) for engagement and rotation, one end of the swing arm (52) being arranged for rotation on the rotating shaft (51), and the rollers (55) being arranged in pairs for rotation at intervals on the other end of the swing arm (52); A clamping drive mechanism (6) for driving the swing arm (52) to swing synchronously; A rotary drive mechanism (7) for driving the roller (55) to rotate synchronously to drive the clamped workpiece to rotate; And a lifting and releasing mechanism (8) for lifting the workpiece away from the lower die (14) before the workpiece rotates, wherein the movement of the lifting and releasing mechanism (8) is driven by the lifting and lowering of the punch (13).

2. A forged round steel punching device according to claim 1, characterized in that: The centering clamping rotation mechanism (5) further comprises a first sprocket (56) coaxially fixed to the middle of the rotating shaft (51) and a second sprocket (57) coaxially fixed between two rollers (55) spaced apart. The first sprocket (56) and the second sprocket (57) are connected in transmission via a first chain (58). An accommodating groove (53) for accommodating the first sprocket (56) and the first chain (58) is provided at one end and a side surface of the swing arm (52).

3. A forged round steel punching device according to claim 2, characterized in that: A snap ring (4) is coaxially engaged and rotatable in the support ring (3), and a mounting ring (41) is coaxially and fixedly spaced on the lower side of the snap ring (4). The centering clamping rotation mechanism (5) further comprises a square frame (54) rotatably arranged between the snap ring (4) and the mounting ring (41), and the swing arm (52) is inserted into the square frame (54).

4. A forged round steel punching device according to claim 3, characterized in that: The lifting and releasing mechanism (8) comprises a lifting rod (81) fixedly connected to the punch (13) and an inverted T-shaped rod (82) symmetrically arranged at both ends of the lifting rod (81); the inverted T-shaped rod (82) is provided with a vertical channel (84) for the end of the lifting rod (81) to engage and slide, and a horizontal channel (83) for the translation block (31) fixed to the support ring (3) to engage and slide; when the punch (13) rises to the highest point, the lifting rod (81) abuts against the top of the vertical channel (84) to lift the inverted T-shaped rod (82), thereby lifting the support ring (3) through the translation block (31).

5. A forged round steel punching device according to claim 4, characterized in that: A limit block (21) is provided on the translation portion of the translation assembly (2), and a lifting cover (32) is provided on the lower side of the translation block (31). The lifting cover (32) is sleeved on the limit block (21), and the lifting cover (32) allows the translation block (31) to move relative to the limit block (21) in a vertical direction.

6. A forged round steel punching device according to claim 5, characterized in that: The clamping drive mechanism (6) comprises a screw (63) provided below the support ring (3), a nut member (62) threadedly connected to the screw (63), and a limit member (61) for engaging and rotating the screw (63), one end of the limit member (61) being rotatably connected to the support ring (3), one end of the nut member (62) being rotatably connected to the connecting member of the snap ring (4), and a rocker (64) being provided at the end of the screw (63). The clamping drive mechanism (6) drives the snap ring (4) and the mounting ring (41) to rotate relative to the support ring (3).

7. A forged round steel punching device according to claim 6, characterized in that: The rotary drive mechanism (7) comprises a servo motor (71) provided on the support ring (3), a third sprocket (72) coaxially fixed to one end of the rotating shaft (51), and a second chain (73) connecting all the third sprockets (72), wherein the output end of the servo motor (71) is coaxially fixedly connected to one of the rotating shafts (51).

8. The forged round steel punching equipment according to claim 7, characterized in that: The line connecting the axis of the support ring (3) and the axis of the punch (13) projected on the horizontal plane is parallel to the translation direction of the translation component (2).

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