A round steel punching device

Abstract

The present application belongs to the technical field of punching equipment, and discloses a kind of forging round steel punching equipment, including workbench, the rack and lower mould being arranged on workbench and punch being driven by upper air cylinder and being arranged on rack, translation assembly is arranged on the both sides of workbench, support ring is arranged between punch and lower mould, support ring is connected with translation assembly to realize linkage translation, three centering clamping rotating mechanisms are arranged along the axis of support ring, centering clamping rotating mechanism includes shaft, swing arm and roller, shaft is clamped and rotated on support ring, one end of swing arm is rotatably arranged on shaft, and roller is rotatably arranged in pairs on the other end of swing arm.The present application can be accurately rotated around the center of disc-shaped part after once centering clamping to realize continuous punching, and the distance between hole position and disc-shaped part center can be adjusted, and workpiece can be lifted away from lower mould during rotation to eliminate resistance, thereby solving the error problem caused by repeated clamping and positioning in prior art.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of punching equipment, and particularly relates to a forged round steel punching equipment. BACKGROUND

[0002] In the fields of heavy machinery, automobiles, rail transportation and energy equipment, flanges, gear blanks, bearing rings and other disc-shaped or ring-shaped parts are widely used as key basic components. Such components are usually made of high-quality round steel as raw material, and through heating, forging and other hot plastic forming processes, the internal organization is more compact and the mechanical properties are significantly improved. In a typical production process, the long round steel after forging needs to go through a cutting process, such as using a band saw or a shearing device, to cut it into a disc blank (hereinafter referred to as "disc-shaped part") of a predetermined thickness for subsequent finishing.

[0003] Punching is a key process in the subsequent finishing of disc-shaped parts, and its purpose is to produce through holes on the disc-shaped parts, such as connecting holes for bolt installation or process holes for weight reduction. The basic steps of traditional punching operation are as follows: the disc-shaped part is placed on the lower die of the punch bench worktable, and the position to be punched is aligned with the upper punch through manual operation or simple feeding device, and the punch goes down through the disc-shaped part and enters the lower die, thereby forming a hole on the disc-shaped part. However, with the increasing precision requirements of modern manufacturing industry for parts, if multiple holes with their centers as the center of the disc-shaped part and arranged uniformly or at a specific angle along the circumferential direction need to be processed on the disc-shaped part, the existing technology has the following technical bottlenecks that are difficult to overcome:

[0004] In the stamping process, in order to ensure the uniformity of the blanking gap and the cross-sectional quality of the punched hole, the relative position of the punch and the lower die of the punch press in its working stroke is constant, which means that if multiple holes at different positions need to be punched on a disc-shaped part, the disc-shaped part itself must be moved. In actual operation, the operator often pre-markes the line on the workpiece, and then aligns the punch through visual observation or with the help of a simple positioning block, and then completes the punching one by one. This manual positioning method not only has high labor intensity and low production efficiency, but more fatally, its positioning accuracy completely depends on the proficiency and sensory judgment of the operator, and it is easy to produce large position errors and cumulative errors. For precision parts that have strict requirements on the position of the hole, the hole center distance and the symmetry relative to the center of the disc-shaped part, this method cannot meet the high-quality production requirements.

[0005] In order to solve the above-mentioned center positioning problem, the industry has also tried to use some positioning tooling, for example, by using a three-jaw chuck or a specially designed centering clamp 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, and then the geometric center can be used to achieve accurate circumferential distribution positioning in theory. However, the existing centering device usually only has the functions of static centering and clamping, and does not integrate an accurate angle rotating mechanism that can be linked with the stamping action. After completing the stamping of one hole, the operator must first loosen the clamp, manually rotate the disc-shaped part by an angle, and then re-clamp. This makes the process flow extremely discontinuous, the operation is complicated, and the production efficiency is greatly reduced, and each re-clamping will inevitably introduce an angular secondary positioning error. SUMMARY

[0006] In view of the above, the present application provides a forged round steel punching equipment, which can accurately rotate around the center of the disc-shaped part to realize continuous punching after one-time centering and clamping, and can adjust the distance between the hole position and the center of the disc-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 prior art, and greatly improving the machining precision and production efficiency.

[0007] The technical scheme adopted by the present application is as follows: The present application provides a forged round steel punching equipment, which comprises a workbench, a rack and a lower die arranged on the workbench, and a punch driven by an upper air cylinder arranged on the rack.

[0008] Further, the workbench is provided with a translation assembly on both sides, which is used to accurately adjust the position of the workpiece in the radial direction, thereby realizing the variability of the punching pitch circle diameter, and a support ring is arranged between the punch and the lower die, which is connected with the translation assembly to realize linkage translation.

[0009] Further, the support ring is provided with three centering and clamping rotating mechanisms arranged circumferentially along its axis, and this three-point array layout can stably and reliably realize automatic centering of the circular workpiece, the centering and clamping rotating mechanism comprises a rotating shaft, a swing arm and a roller, the rotating shaft is 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 and at intervals on the other end of the swing arm.

[0010] Further, the centering and clamping rotating mechanism further comprises a first sprocket coaxially fixed to the middle part of the rotating shaft and a second sprocket coaxially fixed between the two rollers arranged at intervals, and the first sprocket and the second sprocket are connected by a first chain transmission. This built-in chain transmission structure ingeniously transmits the rotation of the rotating shaft to the rollers accurately, which is the key to realize the synchronous rotation of the workpiece. The one end of the swing arm is provided with a containing groove containing the first sprocket and the first chain. This design makes the transmission structure built-in, the structure is more compact and is not easy to be interfered by external connecting structure.

[0011] Further, a snap ring is coaxially and rotationally arranged in the support ring, a mounting ring is coaxially and fixedly arranged below the snap ring, the centering and clamping rotating mechanism further comprises a square frame rotationally arranged between the snap ring and the mounting ring, and the swing arm is arranged in the square frame.

[0012] Further, a lifting and releasing mechanism for lifting the workpiece away from the lower die before the workpiece rotates is further provided. This mechanism ingeniously uses the stamping action itself as a power source to realize 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 comprises a lifting rod fixedly connected to the punch and a reverse T-shaped rod symmetrically arranged at both ends of the lifting rod. The reverse T-shaped rod is provided with a vertical channel for slidingly receiving the end of the lifting rod and a horizontal channel for slidingly receiving a translation block fixed to the support ring. When the punch rises to the highest point, the lifting rod abuts against the top end of the vertical channel to lift the reverse T-shaped rod, and then the support ring is lifted through the translation block. This design ensures that the workpiece can reliably separate from the lower die before rotating or translating, thereby eliminating the frictional resistance and creating a prerequisite for subsequent accurate positioning.

[0013] Further, a limiting block is arranged on the translation part of the translation assembly, and a lifting cover is arranged on the lower side of the translation block. The lifting cover is sleeved on the limiting block, and the lifting cover allows the translation block to move relative to the limiting block in the vertical direction.

[0014] Further, a clamping driving mechanism for driving the swing arm to swing synchronously is further provided. This mechanism can generate a huge self-locking clamping force through manual or simple power input. The clamping driving mechanism comprises a screw rod arranged below the support ring, a nut member threadedly connected to the screw rod, and a limiting member for rotationally receiving the screw rod. One end of the limiting member is rotationally connected to the support ring, one end of the nut member is rotationally connected to the connecting member of the snap ring, and a rocker is arranged at the end of the screw rod. The clamping driving mechanism drives the snap ring and the mounting ring to rotate relative to the support ring.

[0015] Further, a rotating driving mechanism for driving the rollers to rotate synchronously to rotate the clamped workpiece is further included, the rotating driving mechanism comprising a servo motor arranged on the support ring, third sprockets coaxially fixed to one end of the rotating shafts, and a second chain connecting all the third sprockets, the output end of the servo motor being coaxially fixedly connected with one of the rotating shafts, the use of the servo motor ensuring high precision and programmability of the rotating angle, and the chain transmission ensuring synchronous rotation of all the clamping points, thereby driving the workpiece as a whole to rotate accurately without sliding.

[0016] Further, the line connecting the horizontal projections of the shaft center of the support ring and the shaft center of the punch is parallel to the translation direction of the translation assembly, and this geometric layout ensures that the pure radial distance is adjusted by the translation assembly, simplifies the control logic, and ensures the accuracy of the punching position.

[0017] The beneficial effects achieved by the above structure are as follows:

[0018] (1) The present application can realize automatic punching operation of any radius and any angle around the center of the workpiece after accurate clamping and positioning once, specifically, the three centering clamping rotating mechanisms are driven to move synchronously by the clamping driving mechanism, so that the automatic centering and reliable clamping of the disc-shaped workpiece can be quickly realized, and the error caused by manual centering is eliminated, on this basis, the clamped workpiece can be rotated accurately and programmatically by the rotating driving mechanism driven by the servo motor, and the translation assembly is responsible for accurately adjusting the radial distance between the punch and the center of the workpiece, which 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 stringent requirements of high-precision parts for hole position, hole center distance and symmetry.

[0019] (2) The present application realizes full-automatic and efficient linkage of key processes such as punching, lifting, rotating or translating, significantly improves production efficiency, and the lifting release mechanism designed by using the lifting power of the punch itself, through the linkage of the lifting rod and the inverted T-shaped rod, automatically lifts the clamped workpiece together with the entire support ring assembly away from the lower die after each punching is completed and before rotating or translating, this "lifting" action eliminates the frictional resistance between the workpiece and the lower die, creates ideal conditions for subsequent high-precision rotation and distance adjustment, and automatically releases the workpiece back to the lower die when the punch is descending, the entire process is seamlessly connected and does not require any additional power source or manual intervention, and the originally independent processes are efficiently and simply integrated into a coherent automatic operation process.

[0020] (3) The present application has strong versatility and processing flexibility, can adapt to different specifications of disc-shaped parts and diversified punching process requirements, through the clamping driving mechanism driving the swing arm to swing in a large range, so that the centering clamping rotating mechanism can clamp disc-shaped parts with different outer diameters, without replacing the whole set of clamps for different sizes of workpieces, the rotating driving mechanism driven by the servo motor can realize programming control of any angle, not only can complete the equal division of the circumferential array punching, but also can complete the non-equal division of the complex angle layout, therefore, the equipment can quickly adjust 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 process, greatly enhancing the flexible production capacity of the production line. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 A perspective structural schematic view of a forging round steel punching equipment is provided for the present application.

[0022] Figure 2 A structural schematic view of a lower die of a forging round steel punching equipment is provided for the present application.

[0023] Figure 3 A Figure 1 enlarged view of part A.

[0024] Figure 4 An exploded structural schematic view of the position relationship between the lower die and the supporting ring of a forging round steel punching equipment is provided for the present application.

[0025] Figure 5 A Figure 4 enlarged view of part B.

[0026] Figure 6 A structural schematic view of the position relationship between the frame and the mounting ring of a forging round steel punching equipment is provided for the present application.

[0027] Figure 7 An exploded structural schematic view of the position relationship between the supporting ring and the clamping ring of a forging round steel punching equipment is provided for the present application.

[0028] Figure 8 A structural schematic view of a centering clamping rotating mechanism of a forging round steel punching equipment is provided for the present application.

[0029] Figure 9 A structural schematic view of the position relationship between the swing arm and the roller of a forging round steel punching equipment is provided for the present application.

[0030] Figure 10 A Figure 4 enlarged view of part C.

[0031] Wherein, 1, workbench, 11, rack, 12, cylinder, 13, punch, 14, lower die, 2, translation assembly, 21, limit block, 3, support ring, 31, translation block, 32, lifting cover, 4, snap ring, 41, mounting ring, 5, centering clamping rotary mechanism, 51, rotating shaft, 52, swing arm, 53, containing groove, 54, square box, 55, roller, 56, first sprocket, 57, second sprocket, 58, first chain, 6, clamping drive mechanism, 61, limiting piece, 62, nut piece, 63, screw rod, 64, rocker, 7, rotary drive mechanism, 71, servo motor, 72, third sprocket, 73, second chain, 8, lifting release mechanism, 81, lifting rod, 82, inverted T-shaped rod, 83, horizontal channel, 84, vertical channel.

[0032] The accompanying drawings are used to provide a further understanding of the present application, and constitute a part of the specification, and are used to explain the present application together with embodiments of the present application, and do not constitute a limitation on the present application. DETAILED DESCRIPTION

[0033] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0034] In the description of the present application, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0035] As Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Figure 9 , Figure 10 The present application proposes a forged round steel punching equipment, the basic structure of which comprises a workbench 1, a lower die 14 and a rack 11 fixedly arranged on the workbench 1, and a cylinder 12 mounted on the rack 11, which is used to drive a punch 13 to perform reciprocating punching movement up and down.

[0036] In order to realize the accurate positioning and movement of the disc-shaped workpiece, the translation assembly 2 is symmetrically arranged on both sides of the workbench 1, and in the embodiment, the translation assembly 2 can adopt a precision transmission mechanism such as a ball screw to realize high-precision linear translation, and a limiting block 21 is fixedly arranged on a moving part, i.e., a translation part, of the translation assembly 2.

[0037] In the operation space between the punch 13 and the lower die 14, a core workpiece clamping and transmission assembly is arranged, and the basis of the assembly is the support ring 3, the support ring 3 is fixedly connected with the translation blocks 31 on both sides, and the lower side of each translation block 31 is provided with a lifting cover 32, the lifting cover 32 is sleeved on the limiting block 21, this connection mode enables the support ring 3 to be synchronously horizontally translated with the translation assembly 2, and at the same time, the support ring 3 is allowed to be freely lifted in the vertical direction relative to the limiting block 21, in order to ensure the radial adjustability of the punching position, the layout of the application ensures that the projection 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.

[0038] In order to realize the automatic centering, clamping and rotating 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 coaxially and rotationally arranged on the inner side of the support ring 3, the lower side of the clamping ring 4 is fixedly provided with an installation ring 41 coaxially and at intervals through a plurality of connecting rods, and three centering, clamping and rotating mechanisms 5 are arranged on the support ring 3 along the circumferential line of the axis.

[0039] Each centering, clamping and rotating mechanism 5 comprises a rotating shaft 51 which is coaxially and rotationally arranged through the support ring 3, one end of an oscillating arm 52 is rotationally arranged on the rotating shaft 51, a square frame 54 is rotationally arranged between the clamping ring 4 and the installation ring 41, the middle part of the oscillating arm 52 is arranged in the square frame 54, and the other end of the oscillating arm 52 is rotationally provided with two spaced-apart rollers 55 which are used for directly contacting and clamping the disc-shaped workpiece, in order to realize the synchronous rotation of the workpiece, a first sprocket 56 is coaxially fixed to the middle part of the rotating shaft 51, a second sprocket 57 is coaxially fixed between the two rollers 55, the first sprocket 56 and the second sprocket 57 are transmissionally connected through a first chain 58, in order to make the structure compact, a receiving groove 53 is arranged on one end and the side surface of the oscillating arm 52, and is used for accommodating the first sprocket 56 and the first chain 58, so that the transmission mechanism is built-in the oscillating arm 52.

[0040] The present application also comprises a clamping driving mechanism 6 for driving the centering clamping rotary mechanism 5 to realize synchronous clamping, which comprises a screw rod 63, the end of which is provided with a rocker 64 for easy operation, the screw rod 63 is rotatably clamped through a limiting piece 61, one end of the limiting piece 61 is rotatably connected to the supporting ring 3, the screw rod 63 is threadedly connected with a nut piece 62, one end of the nut piece 62 is rotatably connected to a connecting piece on the outer side of the clamping ring 4, by rotating the rocker 64, the screw rod 63 drives the nut piece 62 to move along its axial direction, thereby changing the distance between the limiting piece 61 and the nut piece 62, and further driving the clamping ring 4 and the mounting ring 41 to rotate relative to the supporting ring 3, the rotatable connection of the nut piece 62 and the limiting piece 61 can make the screw rod 63 adapt to the corresponding angle change of the rotation, and this rotation is transmitted to the swing arm 52 through the block 54, so that the swing arm 52 swings around the pivot 51, thereby driving the roller 55 to tighten towards the center or loosen towards the outside, realizing synchronous clamping or releasing of the workpiece, the screw rod 63 has a self-locking function, which ensures the stability of the clamping state.

[0041] In order to drive the workpiece to rotate accurately after punching, the present application also comprises a rotary driving mechanism 7, which comprises a servo motor 71 arranged on the supporting ring 3, the end of each pivot 51 of the centering clamping rotary mechanism 5 is coaxially fixed with a third sprocket 72, all the third sprockets 72 are drivingly connected through a closed second chain 73, the output end of the servo motor 71 is coaxially fixedly connected with one of the pivots 51, when the servo motor 71 is started, it drives all the three pivots 51 to rotate accurately through the second chain 73, since the pivot 51 is rotatable relative to the swing arm 52, therefore, in the state that the swing arm 52 is locked by the clamping driving mechanism 6 (i.e. the workpiece is clamped), the rotation of the pivot 51 will drive the roller 55 to rotate through the internal first chain 58, and further drive the clamped workpiece to rotate synchronously by a preset angle.

[0042] In addition, in order to eliminate the frictional resistance between the workpiece and the lower die 14 before the workpiece rotates, the present application designs a clever lifting and releasing mechanism 8, the movement of which is driven by the lifting of the punch 13, specifically, the punch 13 is fixedly connected with two lifting rods 81 symmetrically arranged on its two sides, and two inverted T-shaped rods 82 are arranged, the vertical part of the inverted T-shaped rod 82 is provided with a vertical channel 84 for clamping and sliding of the end of the lifting rod 81, and the horizontal part is provided with a horizontal channel 83 for clamping and sliding of the translation block 31 on the supporting ring 3.

[0043] The specific working process is as follows:

[0044] Preparation and loading: first, adjust and fasten the lower die 14 in the appropriate position of the workbench 1, so that the hole cutting part is directly opposite the punch 13, at this time, make sure that the centering and clamping rotary mechanism 5 is in the unfolded state, the punch 13 is not at the highest point, so the lifting rod 81 is in the non-contact state in the vertical channel 84, the inverted T-shaped rod 82 and the entire support ring 3 assembly connected therewith fall due to gravity, so that the bottom surface of the mounting ring 41 is tightly attached to the lower die 14, and the forged round steel disc-shaped workpiece to be processed is placed between the three centering and clamping rotary mechanisms 5.

[0045] Centering and clamping: the operator shakes the rocker 64 of the clamping drive mechanism 6, drives the screw rod 63 to rotate, and rotates the clamping ring 4 and the mounting ring 41 relative to the support ring 3. This action drives the three swing arms 52 to swing inward synchronously through the block 54 until the rollers 55 at the ends thereof clamp and automatically align the geometric center of the disc-shaped workpiece. The self-locking property of the screw rod 63 can maintain the clamping force.

[0046] Lifting and distance adjustment: control the air cylinder 12 to lift the punch 13 to the highest point of its stroke. At the end of the rising process, the lifting rod 81 on the punch 13 will abut against the top end of the vertical channel 84 of the inverted T-shaped rod 82, thereby lifting the inverted T-shaped rod 82 upward by a small distance. Since the translation block 31 is clamped in the horizontal channel 83 of the inverted T-shaped rod 82, the support ring 3, the centering and clamping rotary mechanism 5, and the clamped disc-shaped workpiece are lifted synchronously as a whole, and are separated from the lower die 14. Subsequently, the translation assembly 2 is started, and the entire support ring 3 assembly is translated through the limiting block 21 and the lifting cover 32. At this time, the translation block 31 freely slides in the horizontal channel 83 without being constrained. Through translation, the axis line of the disc-shaped workpiece is moved to a pre-set distance from the axis line of the punch 13, i.e., the hole punching radius.

[0047] First hole punching: after the radial distance positioning, the air cylinder 12 drives the punch 13 to descend. While 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 workpiece stably falls back and contacts the lower die 14 under the action of gravity. The punch 13 continues to descend, and the first hole punching operation is completed.

[0048] Rotation and cycle hole punching: after the first hole is punched, the punch 13 is lifted again to the highest point by the air cylinder 12, and the disc-shaped workpiece is lifted again together with the clamping mechanism as a whole from the lower die 14 as described in the lifting and distance adjustment step. At this time, the servo motor 71 of the rotation drive mechanism 7 is started. According to the pre-set program, the servo motor 71 drives all the rotating shafts 51 to synchronously rotate, thereby accurately rotating the disc-shaped workpiece through the rollers 55 by an angle. After the angle positioning, the hole punching operation is performed again. The cycle is repeated until all the pre-set circumferential array holes on the disc-shaped workpiece are processed. The program of the servo motor 71 can also be set to be able to produce non-uniform hole punching to meet special processing requirements.

[0049] It is to be understood that the terminology used herein such as first and second, and the like, is only used to distinguish one entity or action from another entity or action, and does not necessarily require or imply any such actual relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can also include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0050] While the embodiments of the application have been illustrated and described, it will be understood by those skilled in the art that various changes, modifications, substitutions, and alterations can be made therein without departing from the spirit and scope of the application.

[0051] The above description of the application and its embodiments is not restrictive, and the embodiments shown in the drawings are only one of the embodiments of the application, and the actual structure is not limited thereto. In general, if a person skilled in the art is inspired by it, without departing from the purpose of the application, without creative design, similar structure and embodiments of the technical solution can be designed, which should belong to the protection scope of the application.

Claims

1. A punching device for forging round steel bars, comprising a worktable (1), a frame (11) and a lower die (14) disposed on the worktable (1), and a punch (13) disposed on the frame (11 and driven by an upper cylinder (12), characterized in that, Also includes: Translation components (2) are located on both sides of the worktable (1); A support ring (3) is provided between the punch (13) and the lower die (14), and the support ring (3) is connected to the translation component (2) to achieve linkage translation; Three centering clamping and rotating mechanisms (5) are arranged in a circumferential array along the axis of the support ring (3). The centering clamping and rotating mechanism (5) includes a rotating shaft (51), a swing arm (52) and a roller (55). The rotating shaft (51) is engaged and rotatably mounted on the support ring (3). One end of the swing arm (52) is rotatably mounted on the rotating shaft (51). The rollers (55) are rotatably mounted in pairs at intervals on the other end of the swing arm (52). Clamping drive mechanism (6) for driving the swing arm (52) to swing synchronously. A rotary drive mechanism (7) for driving the rollers (55) to rotate synchronously to drive the workpiece being clamped to rotate. And a lifting release mechanism (8) for lifting the workpiece away from the lower die (14) before it rotates, the movement of which is driven by the lifting and lowering of the punch (13).

2. The punching equipment for forging round steel according to claim 1, characterized in that, The centering clamping and rotating mechanism (5) further includes a first sprocket (56) coaxially fixed in the middle of the rotating shaft (51) and a second sprocket (57) coaxially fixed between two spaced rollers (55). The first sprocket (56) and the second sprocket (57) are connected by a first chain (58). The swing arm (52) has a receiving groove (53) on one end and the side to accommodate the first sprocket (56) and the first chain (58).

3. The punching equipment for forging round steel according to claim 2, characterized in that, The support ring (3) is provided with a retaining ring (4) that is coaxially engaged and rotatable. The retaining ring (4) is provided with a mounting ring (41) that is coaxially and fixedly spaced on the lower side. The centering clamping and rotating mechanism (5) also includes a square frame (54) that is rotatably disposed between the retaining ring (4) and the mounting ring (41). The swing arm (52) passes through the square frame (54).

4. The punching equipment for forging round steel according to claim 3, characterized in that, The lifting and releasing mechanism (8) includes a lifting rod (81) fixedly connected to the punch (13) and inverted T-shaped rods (82) symmetrically arranged at both ends of the lifting rod (81); the inverted T-shaped rod (82) has 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), and then lifts the support ring (3) through the translation block (31).

5. The punching equipment for forging round steel according to claim 4, characterized in that, The translation component (2) has a limiting block (21) on its translation part, and a lifting cover (32) is provided on the lower side of the translation block (31). The lifting cover (32) is sleeved on the limiting block (21), and the lifting cover (32) allows the translation block (31) to move relative to the limiting block (21) in the vertical direction.

6. The punching equipment for forging round steel according to claim 5, characterized in that, The clamping drive mechanism (6) includes a screw (63) located below the support ring (3), a nut (62) threadedly connected to the screw (63), and a limiting member (61) for the screw (63) to engage and rotate. One end of the limiting member (61) is rotatably connected to the support ring (3), and one end of the nut (62) is rotatably connected to the connector of the retaining ring (4). The end of the screw (63) is provided with a rocker arm (64). The clamping drive mechanism (6) drives the retaining ring (4) and the mounting ring (41) to rotate relative to the support ring (3).

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

8. The punching equipment for forging round steel 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 onto the horizontal plane is parallel to the translation direction of the translation component (2).

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