A multi-station forging and cutting clamp for pressure vessels

Abstract

This application relates to a multi-station forging and cutting fixture for pressure vessels, belonging to the field of forging fixtures. It includes a drive assembly, multiple material-carrying assemblies, and multiple support seats. The drive assembly includes a first base, a drive shaft, and a lifting ring. The central axis of the drive shaft is a first axis parallel to a first direction, and the drive shaft is rotatably connected to the first base around the first axis. The lifting ring is sleeved on the drive shaft and slidably connected to the drive shaft along the first direction. Multiple material-carrying assemblies are connected to the lifting ring and are evenly distributed around a virtual circumference. Each material-carrying assembly includes a cylindrical material-carrying column connected to the lifting ring. The top of the material-carrying column has a material-carrying groove along the first direction. Support seats are provided below some of the material-carrying columns, and the top of the support seats has a support groove along the first direction, into which the material-carrying columns are appropriately inserted. This application facilitates the transport of materials to be forged to the next station.

Description

Technical Field

[0001] This application relates to the field of forging fixtures, and more particularly to a multi-station forging and cutting fixture for pressure vessels. Background Technology

[0002] In the field of pressure vessel manufacturing, forging has always been a crucial step, directly affecting the quality and performance of pressure vessels. With continuous industrial development, the requirements for production efficiency and quality of pressure vessels are becoming increasingly stringent. The emergence of multi-station forging technology allows the forging process of pressure vessels to be carried out simultaneously at multiple stations, greatly improving production efficiency and reducing production cycles.

[0003] In traditional pressure vessel forging processes, to achieve multi-station forging, multiple independent forging machines are typically used, each responsible for a specific forging station. Workpieces are transferred between different machines manually or mechanically. However, this method is inconvenient for transporting the material to be forged to the next station during construction. Furthermore, cutting operations must be performed after forging. Currently, the forged container is removed and cut on the next production line, requiring manual movement of the container to the cutting line. Therefore, it is urgent to solve the problem of providing equipment that facilitates the transport of the material to be forged to the next station and the movement of the container to the cutting station. Summary of the Invention

[0004] To facilitate the transfer of materials to be forged to the next work station, this application provides a multi-station forging and cutting fixture for pressure vessels.

[0005] This application provides a multi-station forging and cutting fixture for pressure vessels, which adopts the following technical solution:

[0006] A multi-station forging and cutting fixture for pressure vessels includes a drive assembly, multiple material loading assemblies, and multiple support seats;

[0007] The driving component includes:

[0008] First base;

[0009] A drive shaft, wherein the central axis of the drive shaft is a first axis, the first axis is parallel to a first direction, and the drive shaft is rotatably connected to the first base around the first axis;

[0010] And a lifting ring, which is sleeved on the drive shaft and slidably connected to the drive shaft along a first direction;

[0011] Multiple material-carrying components are connected to the lifting ring and are evenly distributed around the virtual circumference; each material-carrying component includes:

[0012] A cylindrical material carrier column is connected to the lifting ring, and a material carrier groove is formed on the top of the material carrier column along a first direction.

[0013] A bearing seat is provided below a portion of the material-carrying column, and a bearing groove is formed on the top of the bearing seat along a first direction, into which the material-carrying column is adapted to be inserted.

[0014] Optionally, it also includes multiple shock-absorbing components, with each connection between the bearing groove and the lifting ring corresponding to a shock-absorbing component, the shock-absorbing component comprising:

[0015] An inner lifting seat, which is connected to the lifting ring;

[0016] An outer lifting seat has a first mounting groove at its bottom, and an inner lifting seat is located within the first mounting groove; the material-carrying column is connected to the outer lifting seat.

[0017] And multiple first compression springs, with multiple first compression springs fixedly connected between the outer wall of the inner lifting seat and the inner wall of the first mounting groove of the outer lifting seat.

[0018] Optionally, the shock absorption assembly further includes:

[0019] A lifting rod parallel to the first direction, the lifting rod having a square cross-section, and one end of the lifting rod being a pushing end; the inner lifting seat is hollow, and the pushing end of the lifting rod passes through the bottom wall of the inner lifting seat and extends into the inner cavity of the inner lifting seat;

[0020] And a four-sided pyramid, which is fixedly connected to the top push end wall of the lifting rod, and the four pyramidal faces of the four-sided pyramid are respectively set to correspond one-to-one with the four rod side walls of the lifting rod;

[0021] The inner lifting seat is provided with multiple locking components, and each of the four-sided pyramids has a corresponding locking component on each pyramidal face; the locking components include:

[0022] A push rod, perpendicular to a first direction, passes through the side wall of the inner lifting seat along its own length and is slidably connected to the side wall of the inner lifting seat along its own length; one end of the push rod is a driving end and the other end is a driven end, the end wall of the driving end of the push rod is parallel to and in contact with the pyramidal surface of the square pyramid, and the driven end of the push rod is used to abut against the side wall of the outer lifting seat;

[0023] And a second compression spring, one end of which is fixedly connected to the inner lifting seat and the other end of which is fixedly connected to the push rod, so that the push rod can be adjusted between the pushing posture and the separating posture;

[0024] When the inner lifting seat moves downward along the lifting rod, the four-sided pyramid pushes multiple push rods toward the inner wall of the outer lifting seat so that the push rods abut against the outer lifting seat. During this process, the deformation of the second compression spring gradually increases.

[0025] When the lifting rod moves downward relative to the inner lifting seat, the four-sided pyramid separates from the push rod, and as the deformation of the second compression spring decreases, it pulls the push rod to separate from the outer lifting seat.

[0026] Optionally, a first connecting assembly is provided between the outer lifting seat and the material carrying column, the first connecting assembly comprising:

[0027] A rotating frame, which is fixedly connected to the material-carrying column;

[0028] And a first motor, which is connected between the outer lifting seat and the rotating frame, so as to drive the rotating frame to rotate around the second axis;

[0029] The second axis coincides with one of the radii of the virtual circle.

[0030] Optionally, a second connecting assembly is provided between the lifting ring and the lifting rod, the second connecting assembly comprising:

[0031] A first linear drive unit is connected between the lifting ring and the lifting rod to drive the lifting rod to move along a second axis.

[0032] Optionally, the bottom of the material-carrying column is rounded.

[0033] Optionally, the material loading assembly further includes a mold with a groove, the mold being adapted to be inserted into the material loading groove.

[0034] Optionally, the bottom wall of the material column is provided with a through hole that communicates with the material loading groove.

[0035] Optionally, it also includes a material handling component, the material handling component comprising:

[0036] frame;

[0037] And a second linear drive unit, which is fixedly connected to the frame, and a picking rod is fixedly connected to the piston rod of the second linear drive unit, the picking rod being used to insert into the through hole along the first direction.

[0038] In summary, this application includes at least one of the following beneficial technical effects:

[0039] By setting a drive shaft to drive multiple material-carrying components to rotate, it is easy to transport the material to be forged to different workstations;

[0040] By installing damping components, the vibration force damage to the drive shaft during the forging process can be reduced;

[0041] By setting up a material handling component, it is easy to separate the mold from the material carrier column. Attached Figure Description

[0042] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application;

[0043] Figure 2 This is a schematic diagram of the material loading assembly in an embodiment of this application;

[0044] Figure 3 This is a schematic diagram of the structure of the shock absorption component in the embodiments of this application;

[0045] Figure 4 yes Figure 3 Enlarged view of section A;

[0046] Figure 5 This is a schematic diagram of the structure of the first connecting component, the second connecting component, and the material picking component in the embodiments of this application.

[0047] Explanation of reference numerals in the attached drawings: 1. Drive assembly; 11. First base; 111. Second mounting slot; 12. Second motor; 13. Drive shaft; 14. Lifting ring; 15. Fixing ring; 16. Third linear drive component; 2. Material loading assembly; 21. Material loading column; 211. Material loading groove; 212. Through hole; 22. Mold; 221. Groove; 3. Bearing seat; 31. Bearing groove; 4. Shock absorption assembly; 41. Inner lifting seat; 42. Outer lifting seat; 421. First 422. Mounting slot; 43. Pushing slot; 44. First compression spring; 45. Lifting rod; 46. Four-sided pyramid; 5. Locking assembly; 51. Push rod; 511. Drive end; 512. Connecting seat; 52. Second compression spring; 53. Telescopic rod; 6. Second connecting assembly; 61. First linear drive component; 7. First connecting assembly; 71. Rotating frame; 72. First motor; 8. Picking assembly; 81. Frame; 82. Second linear drive component; 83. Picking rod. Detailed Implementation

[0048] The following is in conjunction with the appendix Figure 1-5 This application will be described in further detail.

[0049] This application discloses a multi-station forging and cutting fixture for pressure vessels. (Refer to...) Figure 1 and Figure 2 The multi-station forging and cutting fixture for pressure vessels includes a drive assembly 1, multiple material loading assemblies 2, and multiple bearing seats 3;

[0050] The drive assembly 1 includes a first base 11, a second motor 12, a drive shaft 13, and a lifting ring 14. The central axis of the drive shaft 13 is a first axis, which is parallel to a first direction. In this application, the first direction is a vertical direction. The drive shaft 13 is rotatably connected to the first base 11 around the first axis. The second motor 12 is connected between the first base 11 and the drive shaft 13 to drive the drive shaft 13 to rotate around the first axis. Specifically, a second mounting groove 111 is provided on the bottom wall of the first base 11. The second motor 12 is located in the second mounting groove 111, and the housing of the second motor 12 is fixedly connected to the first base 11. The output shaft of the second motor 12 passes through the first base 11 and is coaxially fixedly connected to the drive shaft 13 so that the second motor 12 drives the drive shaft 13 to rotate around the first axis.

[0051] The lifting ring 14 is sleeved on the drive shaft 13 and slidably connected to the drive shaft 13 along the first direction. In order to drive the lifting ring 14 to move along the first direction, a fixing ring 15 is coaxially fixedly connected to the outer peripheral wall of the drive shaft 13. The fixing ring 15 is located below the lifting ring 14. A third linear drive member 16 is provided between the fixing ring 15 and the lifting ring 14. In this embodiment, the third linear drive member 16 is a cylinder. The cylinder body of the third linear drive member 16 is fixedly connected to the fixing ring 15, and the piston rod of the third linear drive member 16 is fixedly connected to the lifting ring 14 so that the lifting ring 14 is driven by the third linear drive member 16 to move along the first direction.

[0052] Reference Figure 1 and Figure 2 In this embodiment, there are 5 material loading assemblies 2, of which 4 material loading assemblies 2 are located at the forging station and the other material loading assembly 2 is located at the unloading station;

[0053] Multiple material-carrying components 2 are connected to the lifting ring 14 and are evenly distributed around the virtual circumference, with the central axis of the virtual circle coinciding with the first axis. The material-carrying component 2 includes a cylindrical material-carrying column 21 and a mold 22 with a groove 221. The material-carrying column 21 is connected to the lifting ring 14 and moves up and down with the lifting ring 14. The top of the material-carrying column 21 is provided with a material-carrying groove 211 along the first direction. The raw material to be forged can be directly placed in the material-carrying groove 211, or the mold 22 can be inserted into the material-carrying groove 211. Specifically, the mold 22 is adapted to be inserted into the material-carrying groove 211. The bottom wall of the groove 221 of the mold 22 can be horizontal or inclined, depending on the actual requirements of the product to be forged.

[0054] A bearing seat 3 is provided at the forging station. The bearing seat 3 is used to support the material column 21. Specifically, the top of the bearing seat 3 is provided with a bearing groove 31 along the first direction. The material column 21 is adapted to be inserted into the bearing groove 31. In order to facilitate the insertion of the material column 21 into the bearing groove 31, the bottom of the material column 21 is rounded. Both the cylindrical section and the rounded part of the material column 21 are inserted into the bearing groove 31.

[0055] During operation, as the material-carrying assembly 2 rotates to each station, the lifting ring 14 moves downward, driving the four material-carrying assemblies 2 located at the forging station to move downward, so that the material-carrying column 21 is inserted into the bearing groove 31, allowing the forging hammer to forge the raw material inside the material-carrying column 21. At this time, personnel can remove the forged product from the material-carrying column 21 that has rotated to the unloading station. A cutting device can also be installed at the unloading station to perform cutting operations on the container at the unloading station. After the cutting operation is completed, the container can be unloaded.

[0056] Reference Figure 2 and Figure 3 During the forging process, a hammering force is applied to the material carrier 2. When the bottom wall of the groove 221 of the mold 22 is inclined, the hammering force will also generate a component force in other directions, which will cause vibration to the drive shaft 13, lifting ring 14 and third linear drive component 16 that are mounted on the material carrier 2, which may cause damage to these structures. In order to reduce the transmission of vibration force, some embodiments of this application also include multiple shock-absorbing components 4. Each bearing groove 31 and lifting ring 14 is connected to a corresponding shock-absorbing component 4. The shock-absorbing component 4 includes an inner lifting seat 41, an outer lifting seat 42 and multiple first compression springs 43.

[0057] The inner lifting seat 41 is connected to the lifting ring 14, and the material column 21 is connected to the outer lifting seat 42. The bottom of the outer lifting seat 42 is provided with a rectangular first mounting groove 421. The inner lifting seat 41 is a hollow rectangular block structure. The inner lifting seat 41 is located in the first mounting groove 421, and the outer wall of the inner lifting seat 41 is parallel to the groove wall of the first mounting groove 421. There is a movable gap between the inner wall of the inner lifting seat 41 and the inner wall of the first mounting groove 421 of the outer lifting seat 42. The first compression spring 43 is located in the movable gap. Each inner wall of the first mounting groove 421 and the outer wall of the inner lifting seat 41 are respectively fixedly connected with multiple first compression springs 43. When the inner mounting seat is at the center of the first mounting groove 421, the first compression spring 43 is in a compressible deformation state that can be recovered and can continue to be compressed.

[0058] The shock absorption assembly 4 also includes a lifting rod 44 parallel to the first direction and a square pyramid 45 installed on the lifting rod 44. The lifting rod 44 has a square cross-section and one end of the lifting rod 44 is a pushing end. The pushing end of the lifting rod 44 passes through the bottom wall of the inner lifting seat 41 and extends into the inner cavity of the inner lifting seat 41. The square pyramid 45 is located inside the inner lifting seat 41 and is fixedly connected to the end wall of the pushing end of the lifting rod 44, so that the apex of the square pyramid 45 is located above the lifting rod 44, and the four pyramidal faces of the square pyramid 45 are correspondingly set with the four rod side walls of the lifting rod 44, that is, each pyramidal face of the square pyramid 45 intersects with one side wall of the lifting rod 44.

[0059] Reference Figure 3 and Figure 4 The inner lifting seat 41 is provided with four locking components 5, and each pyramid face of the four-sided pyramid 45 is provided with a corresponding locking component 5; the locking component 5 includes a push rod 51 and a second compression spring 52;

[0060] The push rod 51 is perpendicular to the first direction. The push rod 51 passes through the side wall of the inner lifting seat 41 along its own length direction and is slidably connected to the side wall of the inner lifting seat 41 along its own length direction. One end of the push rod 51 is the driving end 511 and the other end is the driven end. The end wall of the driving end 511 of the push rod 51 is parallel to and in contact with the pyramidal surface of the square pyramid 45. That is, the end wall of the driving end 511 of the push rod 51 is also an inclined surface. The driven end of the push rod 51 is used to abut against the inner side wall of the first mounting groove 421 of the outer lifting seat 42.

[0061] The second compression spring 52 is located in the inner cavity of the inner mounting seat. The push rod 51 is located on the side wall of the inner cavity of the inner lifting seat 41 and is fixedly connected to the connecting seat 512. One end of the second compression spring 52 is fixedly connected to the inner wall of the inner lifting seat 41, and the other end is fixedly connected to the connecting seat 512 on the push rod 51. The push rod 51 can be adjusted between the pushing posture and the separation posture.

[0062] When the inner lifting seat 41 moves downward along the lifting rod 44, the four-sided pyramid 45 pushes multiple push rods 51 toward the inner wall of the outer lifting seat 42 so that the push rods 51 abut against the outer lifting seat 42. At this time, the push rods 51 are in a pushing posture. During this process, the deformation of the second compression spring 52 gradually increases.

[0063] When the lifting rod 44 moves downward relative to the inner lifting seat 41, the four-sided pyramid 45 separates from the push rod 51. At this time, the push rod 51 is in a separation posture. While the deformation of the second compression spring 52 decreases, it pulls the push rod 51 to separate from the outer lifting seat 42.

[0064] In order to make the push rod 51 push the outer lifting seat 42 more firmly, a push groove 422 is provided on the inner side wall of the first mounting groove 421 of the outer lifting seat 42. The push groove 422 is used for the push rod 51 to be inserted so that the push rod 51 pushes the outer lifting seat 42 more firmly.

[0065] A telescopic rod 53 is provided between each connecting seat 512 and the inner wall of the inner lifting seat 41. One end of the telescopic rod 53 is fixedly connected to the connecting seat 512, and the other end is fixedly connected to the inner wall of the inner lifting seat 41. During the movement of the push rod 51 along the inner lifting seat 41, the telescopic rod 53 can guide the movement of the push rod 51 along the inner lifting seat 41.

[0066] Reference Figure 5To connect the lifting ring 14 and the lifting rod 44, a second connecting component 6 is connected between the lifting ring 14 and the lifting rod 44. The second connecting component 6 includes a first linear drive 61, which is connected between the lifting ring 14 and the lifting rod 44 to drive the lifting rod 44 to move along a second axis. The second axis coincides with one of the radii of a virtual circle. In this embodiment, the first drive is a cylinder. The cylinder body of the first linear drive 61 is fixedly connected to the lifting ring 14, and the piston rod of the first linear drive 61 is fixedly connected to the lifting rod 44 so that the lifting rod 44 is driven by the first linear drive 61 to move along the second axis, that is, to push the entire shock absorption component 4 and the entire material loading component 2 to move along the second axis to adjust the distance between the material loading column 21 and the drive shaft 13.

[0067] Reference Figure 5 In order to connect the outer lifting seat 42 to the material column 21, a first connecting component 7 is provided between the outer lifting seat 42 and the material column 21. The first connecting component 7 includes a rotating frame 71 and a first motor 72. The rotating frame 71 is fixedly connected to the material column 21, and the first motor 72 is connected between the outer lifting seat 42 and the rotating frame 71 so that the rotating frame 71 is driven to rotate around the second axis by the first motor 72. Specifically, the housing of the first motor 72 is fixedly connected to the outer lifting seat 42, and the output shaft of the first motor 72 is fixedly connected to the rotating frame 71. When the first motor 72 drives the material column 21 to rotate, the material column 21 can be flipped to face the opening of the material trough 211, which facilitates the mold 22 in the material trough 211 to fall downward.

[0068] Reference Figure 5 When the mold 22 is stuck in the material loading groove 211 and is not easy to fall off, in order to facilitate the mold 22 to fall off, a through hole 212 communicating with the material loading groove 211 is provided through the bottom wall of the material loading column 21. The diameter of the through hole 212 is smaller than the groove diameter of the material loading groove 211 to prevent the mold 22 from falling off through the through hole 212. When the groove opening of the material loading groove 211 of the material loading column 21 is facing down, a rod-shaped structure can be inserted into the through hole 212 to push the mold 22 to fall off.

[0069] Reference Figure 5In order to push the mold 22 to fall, some embodiments of this application also include a material picking component 8. The material picking component 8 includes a frame 81 and a second linear drive 82. The frame 81 is located at the unloading station. The second linear drive 82 is a cylinder. The cylinder body of the second linear drive 82 is fixedly connected to the frame 81. A picking rod 83 is fixedly connected to the piston rod of the second linear drive 82. The second linear drive 82 and the picking rod 83 are both located above the material column 21. The driving direction of the second linear drive 82 is parallel to the first direction. When the material column 21 rotates to the unloading station, the first motor 72 drives the material column 21 to rotate until the slot of the material groove 211 faces downward. Then, the second linear drive 82 drives the picking rod 83 to move downward along the first direction so that the picking rod 83 can be inserted into the through hole 212 along the first direction, thereby pushing the mold 22 downward from the material column 21 until the mold 22 falls.

[0070] The implementation principle of a multi-station forging and cutting fixture for pressure vessels in this application embodiment is as follows: During operation, the raw material to be forged is added into the mold 22. After being forged at multiple forging stations, the raw material enters the unloading station for unloading.

[0071] The process of feeding the material column 21 from one forging station to the next forging station is as follows: the third linear drive 16 drives the lifting ring 14 to rise, and the lifting rod 44 rises accordingly until the lifting rod 44 drives the four-sided pyramid 45 to push the push rod 51 to abut against the outer lifting seat 42. Then, the lifting ring 14 drives the outer lifting seat 42 to continue to rise, which can drive the material column 21 to move upward until it separates from the bearing seat 3. Then, the drive shaft 13 rotates to transport the material column 21 to the bearing seat 3 above the next station. Subsequently, the third linear drive 16 drives the lifting ring 14 to descend until the material column 21 enters the bearing groove 31 and is supported by the bearing seat 3. Then, the lifting ring 14 drives the lifting rod 44 to continue to move downward until the first compression spring 43 drives the push rod 51 to separate from the outer lifting seat 42 during the reset process. In the subsequent forging process, the vibration generated by forging can be prevented from affecting the drive shaft 13 and other structures.

[0072] When the material column 21 is in the unloading position, since both the material column 21 and the outer lifting seat 42 have weight, the push rod 51 can be in contact with the four-sided pyramid 45. At this time, the push rod 51 also has a pushing effect on the outer lifting seat 42, which can prevent the first motor 72 from driving the rotating frame 71 and the material column 21 to shake during rotation, so as to ensure that the subsequent material picking rod 83 can be accurately inserted into the through hole 212.

[0073] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A multi-station forging and cutting fixture for pressure vessels, characterized in that, The system includes a drive assembly (1), multiple material-carrying assemblies (2), and multiple support seats (3); the drive assembly (1) includes: a first base (11); a drive shaft (13), the central axis of which is a first axis, the first axis being parallel to a first direction, the drive shaft (13) being rotatably connected to the first base (11) around the first axis; and a lifting ring (14), the lifting ring (14) being sleeved on the drive shaft (13) and slidably connected to the drive shaft (13) along the first direction; multiple material-carrying assemblies (2) are connected to the lifting ring (14) and are evenly distributed around a virtual circumference; the material-carrying assembly (2) includes: a cylindrical material-carrying column (21), the material-carrying column (21) being connected to the lifting ring (14), the top of the material-carrying column (21) having a material-carrying groove (211) along the first direction; The support seat (3) is provided below some of the material column (21), and the support seat (3) has a support groove (31) opened on the top along the first direction, and the material column (21) is adapted to be inserted into the support groove (31); It also includes multiple shock-absorbing components (4), with each of the bearing grooves (31) and the lifting rings (14) correspondingly connected to a shock-absorbing component (4). The shock-absorbing component (4) includes: an inner lifting seat (41) connected to the lifting rings (14); an outer lifting seat (42) with a first mounting groove (421) at the bottom, and the inner lifting seat (41) located in the first mounting groove (421); a material column (21) connected to the outer lifting seat (42); and multiple first compression springs (43), with multiple first compression springs (43) fixedly connected between the outer wall of the inner lifting seat (41) and the inner wall of the first mounting groove (421) of the outer lifting seat (42).

2. The multi-station forging and cutting fixture for pressure vessels according to claim 1, characterized in that, The shock absorption assembly (4) further includes: a lifting rod (44) parallel to the first direction, the lifting rod (44) having a square cross-section, and one end of the lifting rod (44) being a pushing end; the inner lifting seat (41) being hollow, the pushing end of the lifting rod (44) passing through the bottom wall of the inner lifting seat (41) and extending into the inner cavity of the inner lifting seat (41); and a square pyramid (45), the square pyramid (45) being fixedly connected to the pushing end wall of the lifting rod (44), and the four pyramidal faces of the square pyramid (45) corresponding one-to-one with the four rod side walls of the lifting rod (44); the inner lifting seat (41) being provided with multiple locking assemblies (5), each pyramidal face of the square pyramid (45) being provided with a corresponding locking assembly (5); the locking assembly (5) includes: A push rod (51) is perpendicular to the first direction. The push rod (51) passes through the side wall of the inner lifting seat (41) along its own length direction and is slidably connected to the side wall of the inner lifting seat (41) along its own length direction. One end of the push rod (51) is a driving end (511), and the other end is a driven end. The end wall of the driving end (511) of the push rod (51) is parallel to and in contact with the pyramidal surface of the quadrangular pyramid (45). The driven end of the push rod (51) is used to abut against the side wall of the outer lifting seat (42). A second compression spring (52) is fixedly connected at one end to the inner lifting seat (41) and at the other end to the push rod (51) so that the push rod (51) can be adjusted between the pushing posture and the separation posture. When the inner lifting seat (41) moves downward along the lifting rod (44), the square pyramid (45) pushes multiple push rods (51) toward the inner wall of the outer lifting seat (42) so that the push rods (51) abut against the outer lifting seat (42). During this process, the deformation of the second compression spring (52) gradually increases. When the lifting rod (44) moves downward relative to the inner lifting seat (41), the square pyramid (45) separates from the push rod (51). At the same time, the deformation of the second compression spring (52) decreases, pulling the push rod (51) to separate from the outer lifting seat (42).

3. A multi-station forging and cutting fixture for pressure vessels according to claim 2, characterized in that, A first connecting assembly (7) is provided between the outer lifting seat (42) and the material carrier column (21). The first connecting assembly (7) includes: a rotating frame (71) fixedly connected to the material carrier column (21); and a first motor (72) connected between the outer lifting seat (42) and the rotating frame (71) to drive the rotating frame (71) to rotate around a second axis; the second axis coincides with one of the radii of a virtual circle.

4. A multi-station forging and cutting fixture for pressure vessels according to claim 3, characterized in that, A second connecting component (6) is connected between the lifting ring (14) and the lifting rod (44). The second connecting component (6) includes a first linear drive member (61), which is connected between the lifting ring (14) and the lifting rod (44) to drive the lifting rod (44) to move along a second axis.

5. A multi-station forging and cutting fixture for pressure vessels according to any one of claims 1-4, characterized in that, The bottom of the material column (21) is rounded.

6. A multi-station forging and cutting fixture for pressure vessels according to claim 5, characterized in that, The material loading assembly (2) also includes a mold (22) having a groove (221) which is adapted to be inserted into the material loading groove (211).

7. A multi-station forging and cutting fixture for pressure vessels according to claim 6, characterized in that, The bottom wall of the material column (21) is provided with a through hole (212) that communicates with the material trough (211).

8. A multi-station forging and cutting fixture for pressure vessels according to claim 7, characterized in that, It also includes a material handling assembly (8), which includes: a frame (81); and a second linear drive (82), which is fixedly connected to the frame (81). A material handling rod (83) is fixedly connected to the piston rod of the second linear drive (82), and the material handling rod (83) is used to insert into the through hole (212) in a first direction.

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