A large-diameter stainless steel pipe fitting socket shaping machine

Abstract

The present application relates to large-diameter pipe shaping technical field, especially to a kind of large-diameter stainless steel pipe socket shaping machine.It includes workbench, fixed platform, hydraulic cylinder I, pressing tool, hydraulic cylinder II etc., the fixed platform is connected to the workbench, the hydraulic cylinder I is connected to the workbench upper end, the pressing tool is connected to the telescopic rod of the hydraulic cylinder I, two hydraulic cylinder II are connected to the upper and lower ends of the workbench.This application places straight pipe in the through slot of lower end limiting frame, then through hydraulic cylinder III, shaping column, workbench, fixed platform and ball cooperation, can make straight pipe be extruded into elbow pipe by workbench and fixed platform, then through two limiting frames separate each other, socket of elbow pipe can be exposed, then through hydraulic cylinder III drive shaping column to shape socket of elbow pipe two ends, so as to facilitate people to process and produce elbow pipe, not only simplify steps, efficiency is higher, and process does not need manual secondary transfer of steel pipe, save time and effort.

Description

Technical Field

[0001] This invention relates to the field of large-diameter pipe fitting shaping technology, and in particular to a large-diameter stainless steel pipe fitting socket shaping machine. Background Technology

[0002] In the field of stainless steel pipe fittings technology, socket shaping is a crucial process step. The socket is an important component of pipe connections, and its precision and quality directly affect the sealing performance and stability of the entire pipeline system. Especially in the application of large-diameter stainless steel pipe fittings, such as pipelines in the fields of petroleum, chemical, power, and urban construction, the requirements for socket manufacturing are even more stringent.

[0003] Large-diameter stainless steel pipe fittings are generally divided into straight pipes and bent pipes. When processing and producing large-diameter stainless steel bent pipes, it is usually necessary to first use a steel pipe bending machine to bend the straight pipe into a bent pipe. Then, the bent pipe is fixed using a specific installation workpiece, and the socket of the bent pipe is shaped. Only in this way can the processing of large-diameter stainless steel bent pipes be completed. However, in the existing technology, when bending and shaping the pipe fittings, it is usually necessary to use two pieces of equipment: a steel pipe bending machine and a socket shaping machine. After the straight pipe is bent into a bent pipe, it is also necessary to manually transfer the bent pipe to the socket shaping machine for socket shaping. This makes the entire bending pipe processing steps cumbersome, time-consuming, labor-intensive, and inefficient. Summary of the Invention

[0004] In view of this, the present invention provides a large-diameter stainless steel pipe fitting socket forming machine, which can solve the shortcomings of the existing technology in processing and producing bent pipes, which is complicated by the cumbersome processing steps, resulting in troublesome operation, time and labor consumption and low efficiency.

[0005] The technical implementation scheme of the present invention is as follows: A large-diameter stainless steel pipe fitting socket forming machine includes a worktable, a fixed table, a hydraulic cylinder I, a pressure tool, a hydraulic cylinder II, a limiting frame, a ball, a hydraulic cylinder III, a forming column, a limiting mechanism, and a locking mechanism. The fixed table is connected to the worktable, the hydraulic cylinder I is connected to the upper end of the worktable, the pressure tool is connected to the telescopic rod of the hydraulic cylinder I, and the pressure tool is used to press the steel pipe tightly onto the worktable for fixing. Two hydraulic cylinders II are connected to the upper and lower ends of the worktable, and two limiting frames are respectively connected to two... The telescopic rod of the hydraulic cylinder II enables the hydraulic cylinder II to drive the two limiting frames to limit the steel pipe. The ball is located on the lower limiting frame. The ball rolls into the steel pipe to provide support for the steel pipe during extrusion. Both hydraulic cylinders III are connected to the worktable. The shaping column is connected to the telescopic rod of the hydraulic cylinder III, enabling the hydraulic cylinder III to drive the shaping column to move and extrude and deform the steel pipe and shape the socket. The limiting mechanism is used to limit the socket of the steel pipe, and the locking mechanism is used to lock the limiting mechanism.

[0006] Optionally, it also includes a limiting mechanism, which includes a connecting plate, a telescopic rod, a sleeve, and a spring I. The two connecting plates are respectively disposed on the two shaping columns, one of the connecting plates is connected to one of the shaping columns, and the other connecting plate is slidably connected to the other shaping column. The telescopic rod is connected to the connecting plate, and the sleeve is connected to the telescopic rod. The sleeve can limit the socket of the steel pipe. The two ends of the spring I are respectively connected to the sleeve and the connecting plate.

[0007] Optionally, it also includes a positioning mechanism, which includes a cylinder, a clamping plate, and a limiting post. The cylinder is connected to one of the connecting plates, the clamping plate is connected to the telescopic rod of the cylinder, and the limiting post is connected to the worktable and is used to limit the clamping plate.

[0008] Optionally, it also includes a ball-pushing mechanism, which includes an electric push rod, a spring II, and a push block. The electric push rod is connected to one of the shaping columns, one end of the spring II is connected to the telescopic rod of the electric push rod, and the other end of the spring II is connected to the push block.

[0009] Optionally, the ball-pushing mechanism further includes omnidirectional balls, and several of the omnidirectional balls are hinged to the push block.

[0010] Optionally, it also includes a cutting mechanism, which includes a fixed frame, a telescopic short rod, a magnetic plate, and an annular cutter. The fixed frame is connected to the hydraulic cylinder III, the telescopic short rod is connected to the sleeve, the magnetic plate is connected to the telescopic short rod, and the annular cutter is connected inside the sleeve and is used to cut the steel pipe.

[0011] Optionally, it also includes a feeding mechanism, which includes a conveyor and a magnet, the conveyor being connected to the worktable and the magnet being connected inside the conveyor.

[0012] Optionally, it also includes a pushing mechanism, which includes a ball-pushing plate, a connecting frame, and a touch plate. The ball-pushing plate is slidably connected to the lower limiting frame, the connecting frame is connected to the fixed platform, and the touch plate is connected to the connecting frame. The ball-pushing plate cooperates with the touch plate to push the ball away.

[0013] The beneficial effects of this invention are as follows: 1. This invention places a straight pipe in the through groove of the lower limiting frame, and then, through the cooperation of hydraulic cylinder III, shaping column, worktable, fixed table and ball, the straight pipe can be squeezed into a bent pipe by the worktable and fixed table. After that, the two limiting frames separate from each other, and the socket of the bent pipe is exposed. Then, the hydraulic cylinder III drives the shaping column to shape the sockets at both ends of the bent pipe. This makes it easier for people to process and produce bent pipes. It not only simplifies the steps and has high efficiency, but also eliminates the need for manual secondary transfer of steel pipes, saving time and effort.

[0014] 2. The present invention uses an electric push rod to drive the spring II to push the push block to the right, which enables the push block to push out the ball remaining in the curved tube and the through groove of the limiting frame, thereby making it easier for people to remove the ball remaining in the curved tube and the through groove of the limiting frame.

[0015] 3. This invention, through the cooperation of a fixed frame, a telescopic short rod, a magnetic plate, and a ring cutter, enables the ring cutter to cut the bent pipe, thereby making the socket end of the bent pipe flatter. Furthermore, the magnetic force of the magnetic plate can attract the cut bent pipe residue to a designated location for collection. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram from a first perspective of the present invention.

[0017] Figure 2 This is a three-dimensional structural schematic diagram of the invention from a second perspective.

[0018] Figure 3 This is an exploded view of the fixing platform, press, and limiting frame of the present invention.

[0019] Figure 4 This is a three-dimensional structural diagram of the limiting mechanism of the present invention.

[0020] Figure 5 This is a three-dimensional structural diagram of the worktable, hydraulic cylinder III, and limit post of the present invention.

[0021] Figure 6 This is a three-dimensional structural diagram of the positioning mechanism of the present invention.

[0022] Figure 7 This is a three-dimensional structural diagram of the spring I, cylinder, and clamping plate of the present invention.

[0023] Figure 8 This is a three-dimensional structural diagram of the ball-pushing mechanism of the present invention.

[0024] Figure 9 This is a three-dimensional structural diagram of the cutting mechanism of the present invention.

[0025] Figure 10 This is a cross-sectional view of the cutting mechanism of the present invention.

[0026] Figure 11 This is a three-dimensional structural diagram of the feeding mechanism of the present invention.

[0027] Figure 12 This is a three-dimensional structural diagram of the conveyor and magnet block of the present invention.

[0028] Figure 13 This is a three-dimensional structural diagram of the pushing mechanism of the present invention.

[0029] Reference numerals: 1_Workbench, 2_Fixed table, 3_Hydraulic cylinder I, 4_Pressure tool, 5_Hydraulic cylinder II, 6_Limit frame, 7_Spherical ball, 8_Hydraulic cylinder III, 9_Shaping column, 10_Connecting plate, 11_Telescopic rod, 12_Sleeve, 13_Spring I, 14_Cylinder, 15_Clamping plate, 16_Limit column, 17_Electric push rod, 18_Spring II, 19_Push block, 20_Universal ball, 21_Fixed frame, 22_Telescopic short rod, 23_Magnetic plate, 24_Annular cutter, 25_Conveyor, 26_Magnetic block, 27_Push ball plate, 28_Connecting frame, 29_Touch plate. Detailed Implementation

[0030] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0031] In the description of this invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0032] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0033] Furthermore, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0034] Example: A large-diameter stainless steel pipe fitting socket forming machine, see below. Figures 1-7 As shown, the system includes a worktable 1; it also includes a fixed platform 2, a hydraulic cylinder I 3, a press 4, a hydraulic cylinder II 5, a limiting frame 6, a ball 7, a hydraulic cylinder III 8, a shaping column 9, a limiting mechanism, and a locking mechanism; the fixed platform 2 is connected to the worktable 1, and the top of the fixed platform 2 is provided with an arc-shaped groove I; the hydraulic cylinder I 3 is connected to the upper end of the worktable 1; the press 4 is connected to the telescopic rod of the hydraulic cylinder I 3 so that the hydraulic cylinder I 3 can drive the press 4 to move up and down, and the bottom of the press 4 is provided with an arc-shaped groove II so that the press 4 can press the steel pipe onto the worktable 1 for fixation through the arc-shaped groove I and arc-shaped groove II; two hydraulic cylinders II 5 are connected to the upper and lower ends of the worktable 1; two limiting frames 6 are respectively connected to the two hydraulic cylinders. On the telescopic rod of II5, and on the side where the two limiting frames 6 are close to each other, there are through slots so that the hydraulic cylinder II5 can drive the two limiting frames 6 to limit the steel pipe; several balls 7 are placed on the lower limiting frame 6, and the balls 7 roll into the steel pipe to provide support for the steel pipe during extrusion; the upper right rear side and the upper left front side of the worktable 1 are connected to hydraulic cylinders III8; two shaping columns 9 are respectively connected to the telescopic rods of the two hydraulic cylinders III8, so that the hydraulic cylinders III8 can drive the shaping columns 9 to move and extrude and deform the steel pipe and shape the socket, wherein the shaping column 9 on the left front side has a slot; the limiting mechanism is used to limit the socket of the steel pipe; the locking mechanism is used to lock the limiting mechanism.

[0035] See Figures 4-6As shown, it also includes a limiting mechanism, which includes a connecting plate 10, a telescopic rod 11, a sleeve 12, and a spring I 13. The two connecting plates 10 are respectively set on the two shaping columns 9. The connecting plate 10 on the right rear side is connected to the shaping column 9 on the right rear side, and the connecting plate 10 on the left front side is slidably connected to the shaping column 9 on the left front side. Each of the two connecting plates 10 is connected to a set of telescopic rods 11, and there are two telescopic rods 11 in each set. Each set of telescopic rods 11 is connected to a sleeve 12, and the sleeve 12 can limit the socket of the steel pipe. The inner diameter of the sleeve 12 is larger than the outer diameter of the shaping column 9. The two ends of the spring I 13 are respectively connected to the sleeve 12 and the connecting plate 10.

[0036] See Figures 5-7 As shown, it also includes a locking mechanism, which includes a cylinder 14, a locking plate 15, and a limiting post 16. The cylinder 14 is connected to the connecting plate 10 on the left front side. The locking plate 15 is connected to the telescopic rod of the cylinder 14 so that the telescopic rod of the cylinder 14 can drive the locking plate 15 to move. The limiting post 16 is connected to the worktable 1, and the front end of the locking plate 15 is locked into the limiting post 16, so that the limiting post 16 limits the locking plate 15, thereby limiting the cylinder 14 and the connecting plate 10 on the left front side. By driving the locking plate 15 to move backward by the cylinder 14, the locking plate 15 can be locked into the groove of the shaping post 9 on the left front side, so that the shaping post 9 on the left front side locks the locking plate 15, so that the connecting plate 10 on the left front side can move synchronously with the shaping post 9 on the left front side.

[0037] In use, the upper limiting frame 6 is moved upward by the upper hydraulic cylinder II5, and then the straight tube is placed in the through groove of the lower limiting frame 6. Then, the upper limiting frame 6 is moved downward by the upper hydraulic cylinder III8 to reset, so that the upper and lower limiting frames 6 limit the outer wall of the straight tube through the through groove. Then, the ball 7 is pushed in from the left side between the two limiting frames 6, so that the ball 7 enters the through groove of the limiting frame 6, and thus the ball 7 rolls into the straight tube. After that, the left front shaping column 9 is moved to the right by the left front hydraulic cylinder III8. At this time, since the limiting column 16 limits the clamping plate 15, the cylinder 14 and the left front connecting plate 10, the clamping plate 15, the cylinder 14 and the left front connecting plate 10 will not move to the right with the left front shaping column 9 due to friction. When the shaping column 9 on the left front side enters the through groove of the limiting frame 6 and contacts the straight tube, the outer wall of the straight tube cannot be further widened due to the restriction of the limiting frame 6. Therefore, after contacting the straight tube, the shaping column 9 on the left front side can squeeze the straight tube in the through groove of the limiting frame 6 to move to the right, thereby causing the straight tube to enter the arc groove I and arc groove II between the worktable 1 and the fixed table 2 from the through groove of the limiting frame 6. The straight tube is then squeezed into a bent tube by the worktable 1 and the fixed table 2 in the arc groove I and arc groove II. During this process, the sphere 7 inside the straight tube provides support to help maintain the stability of the tube and prevent twisting or breakage during bending. After the bent tube is formed, the shaping column 9 on the left front side is driven to move to the left and reset by the hydraulic cylinder III 8 on the left front side. The left front shaping post 9 leaves the through groove of the limiting frame 6. Then, the through groove of the limiting frame 6 and the ball 7 in the bend are removed and placed back on the lower limiting frame 6. Then, the limiting frame 6 is moved to the side away from each other by the hydraulic cylinder II5, so that the two limiting frames 6 are separated and the socket of the bend is exposed. Then, the clamping plate 15 is moved backward by the cylinder 14, so that the limiting post 16 releases the clamping plate 15 and the clamping plate 15 is inserted into the groove of the left front shaping post 9, so that the left front shaping post 9 is clamped by the clamping plate 15. Then, the shaping post 9 is moved closer to the bend by the hydraulic cylinder III8, so that the right rear shaping post 9 directly drives the right rear connecting plate 10 to move closer to the bend, while the left front shaping post 9 is moved by the clamping plate 10. Plate 15 and cylinder 14 drive the connecting plate 10 on the left front side to move closer to the bend, thereby causing the connecting plate 10 to press the sleeve 12 towards the bend via spring I 13. When the sleeve 12 contacts the fixed platform 2 and the pressure fixture 4, the sleeve 12 surrounds the socket of the bend, and the fixed platform 2 and the pressure fixture 4 also block the sleeve 12, stopping its movement. As the connecting plate 10 continues to move closer to the bend, spring I 13 is compressed. When the shaping column 9 contacts the socket of the bend, the shaping column 9 opens the socket of the bend, thereby shaping the socket of the bend and making the outer wall of the shaped bend contact the inner wall of the sleeve 12, so that the sleeve 12 limits the outer wall of the bend. After the socket of the bend is shaped...Then, hydraulic cylinder III8 drives the shaping column 9 and connecting plate 10 to move away from the bend and reset. During this process, spring I 13 gradually resets. When spring I 13 returns to its original state, connecting plate 10 pulls sleeve 12 away from the bend via spring I 13, causing sleeve 12 to separate from the bend. Then, cylinder 14 drives clamping plate 15 forward and resets, causing clamping plate 15 to leave the slot of the left front shaping column 9, thus releasing clamping plate 15 and causing clamping plate 15 to engage with limiting column 16, so that limiting column 16 holds clamping plate 15. Then, hydraulic cylinder I 3 drives press 4 upward, causing press 4 to release the shaped bend. Then, the shaped bend is removed from the arc groove I of workbench 1. Hydraulic cylinder I 3 drives press 4 downward and resets. Finally, hydraulic cylinder II 5 drives limiting frame 6 to move closer together and resets, so that the two limiting frames 6 contact each other.

[0038] See Figure 8 As shown, it also includes a ball-pushing mechanism, which includes an electric push rod 17, a spring II 18, a push block 19, and omnidirectional balls 20. The electric push rod 17 is connected to the interior of the shaping column 9 on the left front side. The left end of the spring II 18 is connected to the telescopic rod of the electric push rod 17. The right end of the spring II 18 is connected to the push block 19 so that the electric push rod 17 can drive the push block 19 to move through the spring II 18. Several omnidirectional balls 20 are hinged to the outer surface of the push block 19 so that the omnidirectional balls 20 can roll on the inner wall of the steel pipe when in contact with it without causing scratches.

[0039] After the tube is formed, the electric push rod 17 drives the spring II 18 to press the push block 19 to the right, so that the push block 19 extends from the shaping column 9 on the left front side into the through groove of the tube and the limiting frame 6. This push block 19 pushes out the ball 7 remaining in the through groove of the tube and the limiting frame 6, making it easy for people to remove the ball 7 remaining in the through groove of the tube and the limiting frame 6. During this process, when the universal ball 20 contacts the inner wall of the tube, the universal ball 20 can roll on the inner wall of the tube and make the push block 19 turn inside the tube. During this process, the spring II 18 will also bend due to the turning of the push block 19. Moreover, by having the universal ball 20 contact the inner wall of the tube, the push block 19 can be prevented from directly contacting the inner wall of the tube and causing scratches. After all the ball 7 remaining in the through groove of the tube and the limiting frame 6 has been pushed out, the electric push rod 17 drives the spring II 18 to pull the push block 19 to the left to reset.

[0040] See Figure 9 and Figure 10As shown, it also includes a cutting mechanism, which includes a fixed frame 21, telescopic short rods 22, a magnetic plate 23, and an annular cutter 24. The fixed frame 21 is connected to the hydraulic cylinder III 8. Each sleeve 12 is connected to a set of telescopic short rods 22, and each set of telescopic short rods 22 has two rods. Each telescopic short rod 22 has a built-in return spring. Each set of telescopic short rods 22 is connected to a magnetic plate 23, and the fixed frame 21 presses against the magnetic plate 23 to compress the telescopic short rods 22, thereby compressing the return springs built into the telescopic short rods 22. The annular cutter 24 is connected inside the sleeve 12 and is used to cut the steel pipe socket during shaping.

[0041] In the initial state, because the fixing bracket 21 presses against the magnetic plate 23, the telescopic short rod 22 is compressed, thus compressing the return spring built into the telescopic short rod 22. When the sleeve 12 moves closer to the bend, the sleeve 12 will drive the annular cutter 24 and the telescopic short rod 22 to move closer to the bend. During this process, the return spring built into the telescopic short rod 22 will gradually extend and return to its original position. After the telescopic short rod 22 returns to its original position, the sleeve 12 will pull the magnetic plate 23 closer to the bend through the telescopic short rod 22. When the shaping column 9 opens and shapes the socket of the bend, the outer wall of the bend will gradually come into contact with the annular cutter 24, causing the annular cutter 24 to cut the bend, thereby cutting off both ends of the bend to make the socket end of the bend flatter, and the cut-off bend residue will be... The magnetic force of the magnetic plate 23 attracts the cut-off bent pipe remnant, keeping it inside the sleeve 12. When the sleeve 12 moves away from the bent pipe and resets, it drives the annular cutter 24, the telescopic rod 22, and the magnetic plate 23 to move away from the bent pipe and reset. When the magnetic plate 23 contacts the fixing frame 21, the fixing frame 21 presses against the magnetic plate 23, stopping its movement. When the telescopic rod 22 continues to move away from the bent pipe and resets, it retracts, and the reset spring inside the telescopic rod 22 is compressed. As the sleeve 12 moves the cut-off bent pipe remnant away from the bent pipe and resets, the remnant gradually detaches from the magnetic force of the magnetic plate 23. Once the remnant is detached from the magnetic force of the magnetic plate 23, it falls downwards due to gravity.

[0042] See Figure 11 and Figure 12 As shown, it also includes a feeding mechanism, which includes a conveyor 25 and a magnet block 26; the conveyor 25 is connected to the workbench 1 and is located below the sleeve 12D; the magnet block 26 is connected inside the conveyor 25.

[0043] When the cut-off bent pipe remnant falls downwards due to gravity, it will land on the conveyor belt of the conveyor 25. The magnet 26 inside the conveyor 25 will magnetically attract the cut-off bent pipe remnant to prevent it from bouncing off the conveyor belt. Then, the cut-off bent pipe remnant is conveyed by the conveyor belt of the conveyor 25 so that it gradually detaches from the magnetic force of the magnet 26 and is discharged.

[0044] See Figure 11 and Figure 13 As shown, it also includes a pushing mechanism, which includes a ball-pushing plate 27, a connecting frame 28, and a contact plate 29. The ball-pushing plate 27 is slidably connected to the lower limit frame 6 so that the ball-pushing plate 27 can move up and down with the lower limit frame 6. The connecting frame 28 is connected to the fixed platform 2. The contact plate 29 is connected to the connecting frame 28, and the ball-pushing plate 27 contacts the contact plate 29 so that when the ball-pushing plate 27 moves down with the lower limit frame 6, the contact plate 29 can squeeze the ball-pushing plate 27 to move to one side of the ball 7, thereby allowing the ball-pushing plate 27 to push the ball 7 away.

[0045] When the lower limit frame 6 moves downward, it will cause the ball pusher plate 27 to move downward, causing the contact plate 29 to press the ball pusher plate 27 to move closer to the ball 7. This will push the ball pusher plate 27 away, thus preventing the ball 7 from blocking the movement of the shaping column 9 to shape the socket of the bent pipe. When the lower limit frame 6 moves upward to reset, it will cause the ball pusher plate 27 to move upward to reset. Then, the ball pusher plate 27 can be pushed to move away from the ball 7 to reset.

[0046] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A large-diameter stainless steel pipe fitting socket forming machine, comprising a worktable (1), characterized in that, It also includes a fixed platform (2), hydraulic cylinder I (3), a press (4), hydraulic cylinder II (5), a limiting frame (6), a sphere (7), hydraulic cylinder III (8), a shaping column (9), a limiting mechanism, and a locking mechanism. The fixed platform (2) is connected to the workbench (1), the hydraulic cylinder I (3) is connected to the upper end of the workbench (1), the press (4) is connected to the telescopic rod of the hydraulic cylinder I (3), and the press (4) is used to press the steel pipe onto the workbench (1) for fixation. The two hydraulic cylinders II (5) are connected to the upper and lower ends of the workbench (1), and the two limiting frames (6) are respectively connected to the two hydraulic cylinders II. (5) On the telescopic rod, the hydraulic cylinder II (5) can drive the two limiting frames (6) to limit the steel pipe. The ball (7) is set on the lower limiting frame (6). The ball (7) rolls into the steel pipe to provide support for the steel pipe when it is squeezed. The two hydraulic cylinders III (8) are connected to the worktable (1). The shaping column (9) is connected to the telescopic rod of the hydraulic cylinder III (8) so that the hydraulic cylinder III (8) can drive the shaping column (9) to move and squeeze and deform the steel pipe and shape the socket. The limiting mechanism is used to limit the socket of the steel pipe. The locking mechanism is used to lock the limiting mechanism. The limiting mechanism includes a connecting plate (10), a telescopic rod (11), a sleeve (12), and a spring I (13). The two connecting plates (10) are respectively set on the two shaping columns (9). One of the connecting plates (10) is connected to one of the shaping columns (9), and the other connecting plate (10) is slidably connected to the other shaping column (9). The telescopic rod (11) is connected to the connecting plate (10), and the sleeve (12) is connected to the telescopic rod (11). The sleeve (12) can limit the socket of the steel pipe. The two ends of the spring I (13) are respectively connected to the sleeve (12) and the connecting plate (10). The positioning mechanism includes a cylinder (14), a clamping plate (15), and a limiting post (16). The cylinder (14) is connected to one of the connecting plates (10). The clamping plate (15) is connected to the telescopic rod of the cylinder (14). The limiting post (16) is connected to the worktable (1) and is used to limit the clamping plate (15).

2. A large-diameter stainless steel pipe fitting socket forming machine according to claim 1, characterized in that, It also includes a ball-pushing mechanism, which includes an electric push rod (17), a spring II (18) and a push block (19). The electric push rod (17) is connected to one of the shaping columns (9). One end of the spring II (18) is connected to the telescopic rod of the electric push rod (17), and the other end of the spring II (18) is connected to the push block (19).

3. A large-diameter stainless steel pipe fitting socket forming machine according to claim 2, characterized in that, The ball pushing mechanism also includes omnidirectional balls (20), and several of the omnidirectional balls (20) are hinged to the push block (19).

4. A large-diameter stainless steel pipe fitting socket forming machine according to claim 3, characterized in that, It also includes a cutting mechanism, which includes a fixed frame (21), a telescopic short rod (22), a magnetic plate (23) and an annular cutter (24). The fixed frame (21) is connected to the hydraulic cylinder III (8), the telescopic short rod (22) is connected to the sleeve (12), the magnetic plate (23) is connected to the telescopic short rod (22), and the annular cutter (24) is connected inside the sleeve (12). The annular cutter (24) is used to cut the steel pipe.

5. A large-diameter stainless steel pipe fitting socket forming machine according to claim 4, characterized in that, It also includes a feeding mechanism, which includes a conveyor (25) and a magnet (26). The conveyor (25) is connected to the workbench (1), and the magnet (26) is connected inside the conveyor (25).

6. A large-diameter stainless steel pipe fitting socket forming machine according to claim 5, characterized in that, It also includes a pushing mechanism, which includes a ball-pushing plate (27), a connecting frame (28), and a touch plate (29). The ball-pushing plate (27) is slidably connected to the lower limit frame (6), the connecting frame (28) is connected to the fixed platform (2), and the touch plate (29) is connected to the connecting frame (28). The ball-pushing plate (27) and the touch plate (29) cooperate to enable the ball-pushing plate (27) to push the ball (7) away.

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