Full-automatic punching machine for large-scale multi-station metal forge piece machining

Abstract

The invention discloses a large-scale multi-station full-automatic punching machine for metal forge piece machining, and belongs to the technical field of metal forge piece machining punching machines, the large-scale multi-station full-automatic punching machine for metal forge piece machining comprises a workbench and a punching instrument fixedly installed on the workbench, the punching instrument is connected with a punching head in a lifting mode, and a rotating table is rotatably installed on the workbench; a plurality of punching grooves are formed in the surface of the rotating table at equal angles, and the positions of the punching grooves correspond to the positions of the punching heads up and down; a plurality of limiting seats are fixedly installed on the surface of the workbench at equal angles, the limiting seats are arranged over the stamping groove, and limiting mechanisms for doubly limiting the machining positions of the metal forgings are arranged on the limiting seats. A heating mechanism for preheating the metal forge piece and reducing the internal stress of the forge piece is arranged in the rotating table; the stamping machine can stably limit the machining position of a metal forge piece during stamping, meanwhile, the movement allowance of movement is kept, the situation that the force for limiting the metal forge piece is too tight is avoided, and therefore the situation that stamping stress of the metal forge piece is too concentrated is avoided, and the stamping quality of the forge piece is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of metal forging processing stamping machines, and specifically relates to a fully automatic stamping machine for processing large multi-station metal forgings. Background Technique

[0002] Metal forging stamping processing is a process in which external force is applied to metal materials through pressure equipment to cause plastic deformation or separation, so as to obtain parts with the required shape and size. The stamping process is widely used in fields such as machinery, automobiles, aerospace, and electronics, and has the characteristics of high precision, high efficiency, low cost, and strong adaptability. The position of the metal forging corresponding to the stamping machine affects the accuracy of its production and processing.

[0003] For example, the patent with the publication number CN219944315U discloses a stamping device for automobile bearing forgings, including a machine body, a lifting mechanism, and a punching mechanism. An installation table is provided at the top of the machine body. Pressure gauges are provided on both sides of the top surface of the stamping machine, and a hydraulic cylinder is installed at the top of the stamping machine. Columns are welded to both sides of the bottom of the stamping machine. The lifting mechanism is installed at the bottom of the stamping machine, and the punching mechanism is screwed to the bottom of the lifting mechanism. By setting the collection box, support table, and limit blocks, it is convenient to place the forging body of the automobile bearing on the top of the support table during stamping processing of the forging body of the automobile bearing. The forging body can be clamped by the limit blocks at both ends to prevent the forging body from moving during stamping. The metal chips generated during stamping directly fall into the collection box for collection, and then the collection box is pulled out by the slider to facilitate the centralized treatment of the collected metal chips.

[0004] For example, the patent with the publication number CN222001737U discloses a stamping machine for alloy forging, including a base. A group of columns are connected to the base. The upper ends of the group of columns are connected to a cross beam. A hydraulic cylinder is connected to the lower end of the cross beam. The telescopic end of the hydraulic cylinder is connected to an upper die. A turntable is rotatably installed on the base, and a lower die is fixedly installed on the turntable. A rotating mechanism is provided between the turntable and the base. Clamping mechanisms are provided on both sides of the lower die. A flipping mechanism is provided on one clamping mechanism. A dust suction mechanism is provided on one side of the base close to the lower die. By setting a flipping mechanism on the clamping mechanism and using the turntable and the rotating mechanism to make the lower die rotatable, the flipping of the forging can be completed without the help of other devices such as manipulators, with simple operation and improved production efficiency.

[0005] As disclosed in the patent with the publication number CN222268566U, a blank centering device for a ring forging stamping machine includes: two centering units. Each centering unit includes: a base, on which a lifting seat and a lifting drive mechanism are provided. On the lifting seat, there are centering clamping plates, a first centering oil cylinder, and two side swing arms. One ends of the two side swing arms are respectively hinged to both ends of the centering clamping plate. Between the centering clamping plate and the lifting seat, there are guide columns, which pass through the lifting seat. One end of the guide column is fixed to the centering clamping plate. Between the two side swing arms and the lifting seat, there are respectively a second centering oil cylinder and a connecting rod. The second centering oil cylinder is fixed on the lifting seat. The top of the piston rod of the second centering oil cylinder is hinged to one end of the connecting rod, and the other end of the connecting rod is hinged to the back of the side swing arm. After the piston rods of the two second centering oil cylinders extend, they can drive the two side swing arms to swing towards each other and clamp through their respective connecting rods. The blank centering device can quickly center the blank on the stamping platform. However, if the position is inaccurate during the placement or clamping of the forging, it is easy to cause quality problems such as scratches and pad pits on the surface, and excessive clamping may cause stress concentration on the surface of the workpiece, thus affecting the quality of the final product. Currently, some clamping components are not convenient for coordinating the clamping force when limiting the position of the forging, resulting in quality problems in the stamping process of the forging. In addition, the plasticity of unheated metal materials is low and the internal stress is concentrated. Especially for large metal forgings, it is easy to generate cracks or fractures during the stamping process.

[0006] In view of the above problems, there is an urgent need to innovate and design on the basis of the original metal forging stamping machine. Summary of the Invention

[0007] The purpose of the present invention is to provide a fully automatic stamping machine for processing large multi-station metal forgings, so as to solve the quality problems such as scratches and pad pits on the surface that are easily caused if the position is inaccurate during the placement or clamping of the forging as mentioned in the above background technology, and excessive clamping may cause stress concentration on the surface of the workpiece, thus affecting the quality of the final product. Currently, some clamping components are not convenient for coordinating the clamping force when limiting the position of the forging, resulting in quality problems in the stamping process of the forging.

[0008] To achieve the above purpose, the present invention provides the following technical solution: A fully automatic stamping machine for processing large multi-station metal forgings includes a workbench and a stamping mechanism fixedly installed on the workbench. A stamping head is connected to the stamping mechanism in a lifting manner. A rotating table is rotatably installed on the workbench. Multiple stamping grooves are equiangularly opened on the surface of the rotating table, and the positions of the stamping grooves correspond to the positions of the stamping heads up and down. A ball is rotatably installed on the workbench. A rolling groove is opened at the bottom of the rotating table, and the ball is rotatably installed in the rolling groove. Multiple limiting seats are fixedly installed on the surface of the workbench equiangularly, and the limiting seats are arranged directly above the stamping grooves. A limiting mechanism for doubly limiting the processing position of the metal forging is provided on the limiting seats. A heating mechanism for preheating the metal forging and reducing the internal stress of the forging is provided in the rotating table.

[0009] Preferably, an embedded groove is formed inside the rotating table, and a side gear ring is fixedly installed in the embedded groove; a motor is fixedly installed on the workbench, the output end of the motor is connected with a driving gear, and the driving gear is meshed with the side gear ring.

[0010] Preferably, the limiting mechanism includes a guiding support fixedly installed on the limiting seat, and a pressing plate is slidably installed on the guiding support, and the pressing plate is slidably attached to the inner side of the limiting seat.

[0011] Preferably, the limiting mechanism further includes a transverse sliding column slidably connected through the pressing plate, a sleeve is fixedly sleeved outside the transverse sliding column, and a pressing ring is fixedly installed on the sleeve; a limiting spring is elastically connected between the sleeve and the pressing plate; the pressing ring and the arc surface of the limiting seat are coaxial.

[0012] Preferably, a moving frame is fixedly connected to the pressing plate, the moving frame is slidably connected through the rotating table, and a driven piece is fixedly installed on the moving frame.

[0013] Preferably, a support frame is fixedly installed on the punching machine, a sliding seat is slidably connected to the support frame, and a driving block is fixedly installed on the sliding seat, and the driving block is snap-fitted outside the driven piece.

[0014] Preferably, a longitudinal sliding rod is slidably connected through the support frame, a lifting frame is fixedly installed on the upper end surface of the longitudinal sliding rod, and a reset spring is elastically connected between the lifting frame and the support frame; a push rod is rotatably connected to the lifting frame, and the push rod is rotatably connected to the sliding seat.

[0015] Preferably, a pressure column is fixedly installed on the upper end surface of the support frame, a pressure frame is fixedly installed on the punching head, and the pressure frame moves down to contact the surface of the pressure column.

[0016] Preferably, the heating mechanism includes heating grooves formed in the rotating table at equal angles, and the heating grooves are coaxial with the punching grooves; a rotating frame is rotatably connected in the heating grooves, and heating tubes are installed on the rotating frame.

[0017] Preferably, a small gear is coaxially connected to the rotating frame, a rotating ring groove is formed at the bottom of the rotating table, and the small gear is arranged inside the rotating ring groove; a circular ring seat is fixedly installed on the workbench, and the circular ring seat is rotatably connected to the rotating table through the rotating ring groove; an internal gear ring is fixedly installed in the circular ring seat, and the internal gear ring is meshed with the small gear.

[0018] Compared with the prior art, the beneficial effects of the present invention are as follows: for this fully automatic punching machine for processing large multi-station metal forgings, a plurality of punching grooves are formed at equal angles on the rotating table to provide multiple workstations for metal forgings. Through the manipulator for loading and unloading, the metal forgings can be quickly placed on the workbench or quickly removed from the workbench, improving the processing efficiency of metal forgings.

[0019] Furthermore, a limiting mechanism for doubly limiting the processing position of the metal forging is provided on the limiting seat. The metal forging is placed in the limiting seat, and the pressing ring fits on the surface of the metal forging. The pressing ring is limited to the side of the pressing plate through a sleeve and a limiting spring, preliminarily limiting the stamping processing position of the metal forging.

[0020] When controlling the stamping head to move downward for stamping processing, the stamping head pushes the longitudinal sliding rod downward through a pressure frame and a pressure column. Under the transmission of the lifting frame and the push rod, the active block, the driven piece, and the moving frame can be controlled to move horizontally. The moving frame pushes the pressing plate to horizontally press on the side of the pressing ring, adjusting the elastic potential energy of the limiting spring connected between the pressing ring and the pressing plate, so that the pressing ring presses the metal forging tightly in the limiting seat, maintaining the accuracy of the stamping processing position of the metal forging. At the same time, the limiting spring allows the pressing ring to have a moving margin, avoiding the problem of excessive stress concentration on the forging due to excessive pressing force of the pressing ring on the outside of the metal forging.

[0021] Furthermore, a heating mechanism for preheating the metal forging and reducing the internal stress of the forging is provided in the rotating table. The metal forging is placed in the limiting seat, and before stamping processing, the heating tube below the stamping groove can heat-treat the metal forging, improving the plasticity of the metal forging and avoiding defects in stamping caused by excessive internal stress concentration in the forging.

[0022] During the rotation of the rotating table, the lower small gear is driven to rotate circumferentially. The small gear is meshed and connected beside the internal gear ring. During the circumferential rotation of the small gear, it is driven by meshing transmission, and can drive the rotating frame to rotate self, so that the heating tube rotates corresponding to the lower part of the stamping groove, thereby maintaining the uniform upward transmission of the heat generated by the heating tube and maintaining the uniformity of the surface heating of the metal forging. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a three-dimensional structural schematic diagram of the workbench of the present invention.

[0024] Figure 2 It is a three-dimensional structural schematic diagram of the stamping machine of the present invention.

[0025] Figure 3 It is a three-dimensional structural schematic diagram of the rotating table of the present invention.

[0026] Figure 4 It is a three-dimensional structural schematic diagram of the limiting seat of the present invention.

[0027] Figure 5 It is a structural schematic diagram of the driving gear of the present invention.

[0028] Figure 6 It is a three-dimensional structural schematic diagram of the moving frame of the present invention.

[0029] Figure 7 It is a three-dimensional structural schematic diagram of the pressing ring of the present invention.

[0030] Figure 8 This is a three-dimensional structural schematic diagram of the pressing plate of the present invention.

[0031] Figure 9 This is a three-dimensional structural schematic diagram of the sleeve of the present invention.

[0032] Figure 10 This is a three-dimensional structural schematic diagram of the punching head of the present invention.

[0033] Figure 11 This is a three-dimensional structural schematic diagram of the pressure frame of the present invention.

[0034] Figure 12 This is a three-dimensional structural schematic diagram of the push rod of the present invention.

[0035] Figure 13 This is a three-dimensional structural schematic diagram of the lifting frame of the present invention.

[0036] Figure 14 This is a three-dimensional structural schematic diagram of the driving block of the present invention.

[0037] In the figure: 1, workbench; 2, punching machinery; 3, punching head; 4, rotating table; 5, punching groove; 6, ball; 7, rolling groove; 8, embedded groove; 9, side gear ring; 10, motor; 11, driving gear; 12, limiting seat; 13, guiding bracket; 14, pressing plate; 15, horizontal sliding column; 16, sleeve; 17, pressing ring; 18, limiting spring; 19, moving frame; 20, driven piece; 21, support frame; 22, sliding seat; 23, driving block; 24, longitudinal sliding rod; 25, lifting frame; 26, reset spring; 27, push rod; 28, pressure column; 29, pressure frame; 30, heating groove; 31, rotating frame; 32, heating pipe; 33, pinion; 34, rotating ring groove; 35, circular ring seat; 36, internal gear ring. Specific embodiments

[0038] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with 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 efforts shall fall within the protection scope of the present invention.

[0039] Embodiment 1: Please refer to Figures 1-14, the present invention provides the following technical solution: A fully automatic stamping machine for processing large multi-station metal forgings, including a workbench 1 and a stamping mechanism 2 fixedly installed on the workbench 1. A stamping head 3 is vertically connected to the stamping mechanism 2. A rotating table 4 is rotatably installed on the workbench 1. A plurality of stamping grooves 5 are equiangularly formed on the surface of the rotating table 4. The positions of the stamping grooves 5 correspond to the positions of the stamping head 3 up and down. A ball 6 is rotatably installed on the workbench 1. A rolling groove 7 is formed at the bottom of the rotating table 4. The ball 6 is rotatably installed in the rolling groove 7. A plurality of limit seats 12 are fixedly installed on the surface of the workbench 1 at equal angles. The limit seats 12 are arranged directly above the stamping grooves 5. A limit mechanism for doubly limiting the processing position of the metal forging is provided on the limit seats 12. A heating mechanism for preheating the metal forging and reducing the internal stress of the forging is provided in the rotating table 4.

[0040] An inner embedded groove 8 is formed inside the rotating table 4. A side gear ring 9 is fixedly installed in the inner embedded groove 8. A motor 10 is fixedly installed on the workbench 1. The output end of the motor 10 is connected to a driving gear 11. The driving gear 11 is meshed and connected with the side gear ring 9.

[0041] The limit mechanism includes a guiding support 13 fixedly installed on the limit seat 12. A pressing plate 14 is slidably installed on the guiding support 13. The pressing plate 14 fits and slides on the inner side of the limit seat 12.

[0042] The limit mechanism further includes a transverse sliding column 15 slidably connected through the pressing plate 14. A sleeve 16 is fixedly sleeved outside the transverse sliding column 15. A pressing ring 17 is fixedly installed on the sleeve 16. A limit spring 18 is elastically connected between the sleeve 16 and the pressing plate 14. The pressing ring 17 is coaxial with the arc surface of the limit seat 12.

[0043] A moving frame 19 is fixedly connected to the pressing plate 14. The moving frame 19 is slidably connected through the rotating table 4. And a driven piece 20 is fixedly installed on the moving frame 19.

[0044] A support frame 21 is fixedly installed on the stamping mechanism 2. A sliding seat 22 is slidably connected to the support frame 21. A driving block 23 is fixedly installed on the sliding seat 22. The driving block 23 is snap-fitted outside the driven piece 20.

[0045] A longitudinal sliding rod 24 is slidably connected through the support frame 21. An elevating frame 25 is fixedly installed on the upper end surface of the longitudinal sliding rod 24. A reset spring 26 is elastically connected between the elevating frame 25 and the support frame 21. A push rod 27 is rotatably connected to the elevating frame 25. The push rod 27 is rotatably connected to the sliding seat 22.

[0046] A pressure column 28 is fixedly installed on the upper end surface of the support frame 21. A pressure frame 29 is fixedly installed on the stamping head 3. The pressure frame 29 moves down to contact the surface of the pressure column 28.

[0047] Place the metal forgings in the limit seats 12 on the rotating table 4 in sequence. Press the upper inclined surface of the pressing ring 17 below the metal forging, and push the pressing ring 17 to move closer to the pressing plate 14. The pressing ring 17 presses the limit spring 18. Under the pressing action of the pressing ring 17, the position of the metal forging placed on the rotating table 4 is preliminarily limited, so that the metal forging can be relatively stably limited on the rotating table 4 during the rotation of the rotating table 4.

[0048] Operate the motor 10 to control the rotation of the driving gear 11. The driving gear 11 is meshed and connected with the side gear ring 9. Under the meshing drive, the side gear ring 9 and the rotating table 4 can be controlled to rotate. The rotating table 4 rotates on the rolling balls 6 through the rolling grooves 7 to control the rotation angle of the rotating table 4, so that the metal forgings limited on the rotating table 4 are rotated in sequence to the lower part of the punching head 3.

[0049] The rotation of the rotating table 4 drives the moving frame 19 and the driven piece 20 to rotate circumferentially. The driven piece 20 can rotate and be engaged inside the driving block 23. During stamping processing, the punching head 3 is controlled to move downward by hydraulic power. The punching head 3 contacts the metal forging, and cooperates with the punching groove 5 below to complete the stamping processing of the metal forging.

[0050] During the downward movement of the punching head 3, the pressure frame 29 is driven to move downward synchronously. The pressure frame 29 contacts the pressure column 28 and pushes the pressure column 28 to move downward. The pressure column 28 pushes the lifting frame 25 and the longitudinal sliding rod 24 to move downward. The longitudinal sliding rod 24 moves through the support frame 21. At this time, both ends of the push rod 27 connected between the lifting frame 25 and the sliding seat 22 rotate. The rotating push rod 27 pushes the sliding seat 22 to move horizontally on the support frame 21. The sliding seat 22 moves away from the forging. At this time, the sliding seat 22 drives the driving block 23 and the driven piece 20 below to move. The driven piece 20 controls the moving frame 19 to move directionally through the rotating table 4. The moving frame 19 pushes the pressing plate 14 to move closer to the pressing ring 17, adjusts the elastic potential energy of the limit spring 18 connected between the pressing ring 17 and the pressing plate 14, so that while the pressing ring 17 can tightly press and limit the stamping processing position of the metal forging, there is a small spacing moving margin for the pressing ring 17, avoiding the defect of stress concentration caused by the metal forging being clamped too tightly during the stamping processing, and improving the stamping processing quality of the metal forging.

[0051] Embodiment 2: On the basis of Embodiment 1, a heating mechanism is also disclosed, and its specific structure is as follows: The heating mechanism includes heating grooves 30 opened at equal angles in the rotating table 4. The heating grooves 30 are coaxial with the punching grooves 5; A rotating frame 31 is rotatably connected in the heating grooves 30, and heating tubes 32 are installed on the rotating frame 31.

[0052] A small gear 33 is coaxially connected to the rotating frame 31. A rotating ring groove 34 is formed at the bottom of the rotating table 4, and the small gear 33 is arranged inside the rotating ring groove 34. A circular ring seat 35 is fixedly installed on the workbench 1, and the circular ring seat 35 is rotatably connected to the rotating table 4 through the rotating ring groove 34. An internal gear ring 36 is fixedly installed in the circular ring seat 35, and the internal gear ring 36 is meshed with the small gear 33.

[0053] The rotation of the rotating table 4 drives the metal forgings at multiple workstations on the surface to be successively subjected to stamping processing. Before the metal forgings are subjected to stamping processing, they can be preheated by the heating mechanism in the rotating table 4. A heating pipe 32 is arranged in the rotating table 4, and the heat generated by the heating pipe 32 floats and is transferred to the metal forgings above, realizing the preheating treatment of the metal forgings, improving the plasticity of the metal forgings, and avoiding excessive stress concentration of the metal forgings.

[0054] During the rotation of the rotating table 4, the small gear 33 below is driven to rotate circumferentially. The small gear 33 is meshed with the internal gear ring 36. Under the meshing drive, the small gear 33 can rotate circumferentially and simultaneously rotate on its own axis. The small gear 33 drives the rotating frame 31 to rotate. The rotating frame 31 is movably arranged through the moving frame 19 to avoid movement interference. The rotation of the rotating frame 31 drives the heating pipe 32 to rotate correspondingly below the stamping groove 5, so that the heat generated by the heating pipe 32 can be evenly transferred to the metal forgings above, keeping the metal forgings can be evenly heated and processed, and improving the quality of subsequent stamping processing of the metal forgings.

[0055] In the description of the present invention, it should be noted that unless otherwise clearly specified and limited, the terms "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0056] Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An automatic stamping machine for processing large multi-station metal forgings, comprising a workbench (1) and a stamping mechanism (2) fixedly installed on the workbench (1), and a stamping head (3) is vertically connected to the stamping mechanism (2), and it is characterized in that: A rotating table (4) is rotatably mounted on the workbench (1). A plurality of stamping grooves (5) are equiangularly formed on the surface of the rotating table (4). The positions of the stamping grooves (5) correspond to the positions of the stamping heads (3) up and down. A ball (6) is rotatably mounted on the workbench (1). A rolling groove (7) is formed at the bottom of the rotating table (4). The ball (6) is rotatably mounted in the rolling groove (7). A plurality of limit seats (12) are fixedly mounted on the surface of the workbench (1) at equal angles. The limit seats (12) are arranged directly above the stamping grooves (5). A limit mechanism for doubly limiting the processing position of the metal forging is provided on the limit seats (12). A support frame (21) is fixedly mounted on the punching machine (2). A sliding seat (22) is slidably connected to the support frame (21). A driving block (23) is fixedly mounted on the sliding seat (22). The driving block (23) is snap-fitted outside the driven piece (20). A heating mechanism for preheating the metal forging and reducing the internal stress of the forging is provided in the rotating table (4).

2. The full-automatic stamping machine for processing large multi-station metal forgings according to claim 1, characterized in that: An embedded groove (8) is formed inside the rotating table (4). A side gear ring (9) is fixedly mounted in the embedded groove (8). A motor (10) is fixedly mounted on the workbench (1). The output end of the motor (10) is connected with a driving gear (11). The driving gear (11) is meshed with the side gear ring (9).

3. The fully automatic stamping machine for processing large multi-station metal forgings according to claim 1, wherein: The limit mechanism includes a guiding support (13) fixedly mounted on the limit seat (12). A pressing plate (14) is slidably mounted on the guiding support (13). The pressing plate (14) fits and slides inside the limit seat (12).

4. The fully automatic stamping machine for processing large multi-station metal forgings according to claim 3, characterized in that: The limit mechanism further includes a transverse sliding column (15) slidably connected through the pressing plate (14). A sleeve (16) is fixedly sleeved outside the transverse sliding column (15). A pressing ring (17) is fixedly mounted on the sleeve (16). A limit spring (18) is elastically connected between the sleeve (16) and the pressing plate (14). The pressing ring (17) is coaxial with the arc surface of the limit seat (12).

5. The full-automatic stamping machine for processing large multi-station metal forgings according to claim 4, wherein: A moving frame (19) is fixedly connected to the pressing plate (14). The moving frame (19) is slidably connected through the rotating table (4). A driven piece (20) is fixedly mounted on the moving frame (19).

6. An automatic stamping machine for processing large multi-station metal forgings according to claim 5, characterized in that: A longitudinal sliding rod (24) is slidably connected through the support frame (21). A lifting frame (25) is fixedly mounted on the upper end surface of the longitudinal sliding rod (24). A return spring (26) is elastically connected between the lifting frame (25) and the support frame (21). A push rod (27) is rotatably connected to the lifting frame (25). The push rod (27) is rotatably connected to the sliding seat (22).

7. An automatic stamping machine for processing large multi-station metal forgings according to claim 6, characterized in that: A pressure column (28) is fixedly mounted on the upper end surface of the support frame (21). A pressure frame (29) is fixedly mounted on the stamping head (3). The pressure frame (29) moves down and contacts the surface of the pressure column (28).

8. The fully automatic stamping machine for processing large multi-station metal forgings according to claim 1, wherein: The heating mechanism includes heating grooves (30) formed in the rotating table (4) at equal angles. The heating grooves (30) are coaxial with the stamping grooves (5). A rotating frame (31) is rotatably connected in the heating groove (30). A heating pipe (32) is mounted on the rotating frame (31).

9. The full-automatic stamping machine for processing large multi-station metal forgings according to claim 8, wherein: A small gear (33) is coaxially connected to the rotating frame (31). A rotating ring groove (34) is formed at the bottom of the rotating table (4), and the small gear (33) is arranged inside the rotating ring groove (34). A circular ring seat (35) is fixedly installed on the workbench (1), and the circular ring seat (35) is rotatably connected to the rotating table (4) through the rotating ring groove (34). An internal gear ring (36) is fixedly installed in the circular ring seat (35), and the internal gear ring (36) is meshed with the small gear (33).

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