Manufacturing process of socket welding tee for petroleum transportation

Abstract

The application relates to the technical field of three-way pipe processing, in particular to a manufacturing process of a socket welding tee for oil transportation; the process is as follows: a punched three-way pipe is clamped and fixed on a three-way ball forging device; a ball forging ball body is added to the port of the central pipeline of the three-way pipe; the ball forging ball body is pushed and extruded into the three-way pipe by the three-way ball forging device to complete the ball forging of the central pipeline; the ball forging ball body is further extruded and pushed into the three-way pipe from both ends of the three-way pipe by the three-way ball forging device, and the ball forging ball body is put into the three-way pipe through transverse reciprocating, so that the ball forging of the three-way pipe is completed; the application has the beneficial effect of solving the problem that the existing technology cannot accurately forge the three-way pipe with a long specification and cannot guarantee the precision and strength of the ball forging.

Description

Technical Field

[0001] This invention relates to the field of tee pipe fitting processing technology, and more specifically to a manufacturing process for a socket welding tee for oil transportation. Background Technology

[0002] Existing technologies for processing standard pipe components such as tees and crosses typically require forging after stamping to improve the microstructure and mechanical properties of the metal material, making it more durable. Ball forging is one such method. A forging die for a ball valve ball forging, similar to that described in patent number CN202221722403.3, includes a die fixing plate. A pre-forging die and a precision forging die are connected to the end face of the die fixing plate. A forging transfer structure is connected to the end face of the die fixing plate and on both sides of the pre-forging die and the precision forging die. The forging transfer structure includes two sets of fixed... This invention, featuring a fixed slide rail and two sets of ejector cylinders, incorporates a forging transfer structure within the forging die for ball valve forgings. This structure, utilizing ejector cylinders, drive cylinders, and moving cylinders, transfers the forging from the pre-forging die to the precision forging die via a transmission mechanism. This design improves die lifespan without altering forging efficiency, saving manufacturing costs and solving the problem of extending die lifespan without affecting forging efficiency. However, this device and processing method cannot precisely forge longer tee fittings, nor can it guarantee the accuracy and force of ball forging. Summary of the Invention

[0003] Therefore, the technical problem to be solved by the present invention is to overcome the problem in the prior art that it is impossible to accurately forge long-length tee fittings and that the accuracy and force of spherical forging cannot be guaranteed.

[0004] Therefore, the technical solution adopted is a manufacturing process for a socket weld tee for oil transportation according to the present invention, which includes the following steps:

[0005] S1: Place the stamped tee fitting on the tee ball forging machine and clamp it in place;

[0006] S2: Add the forged ball to the port of the center pipe of the tee fitting;

[0007] S3: The ball-forged spheres are pushed into the tee fitting using a tee ball forging machine for compression addition;

[0008] S4: Push the ball forging sphere to the center of the tee fitting to complete the ball forging of the central pipe;

[0009] S5: Then, the tee fitting is further extruded and pushed from both ends by a tee ball forging machine. The extruded ball is then inserted into the tee fitting by transverse reciprocating motion, thus completing the ball forging of the tee fitting.

[0010] Preferably, the tee ball forging machine includes a tee processing table, on which parallel slide rails for tee forging are provided; three ball forging additives are fixed on the tee processing table along the tee direction and slide on the parallel slide rails; a fixed clamping table and an arc-shaped clamping table for clamping the tee fitting are fixed at the center of the tee processing table; and a rear hydraulic pusher is fixed between two symmetrically arranged ball forging additives.

[0011] Preferably, the fixed clamping table includes a drag table, two inclined platforms, two inclined bolts, and two inclined push clamps. The drag table is fixed at the center of the tee processing table. Two inclined platforms are symmetrically fixed on the drag table. Two inclined bolts are connected to the two inclined platforms by threaded engagement. The two inclined bolts rotate to drive the two inclined push clamps to slide on the drag table at an inclined limit. The two symmetrically arranged inclined push clamps clamp the two included angles of the tee fitting.

[0012] Preferably, the rear end of the arc-shaped clamping platform is connected to an adjusting push bolt via a threaded connection. The adjusting push bolt rotates at the center of the central tube pushing and clamping arc platform, and drives the central tube pushing and clamping arc platform to slide on the arc-shaped clamping platform. The central tube pushing and clamping arc platform is clamped on the symmetrical side of the central tube of the tee fitting.

[0013] Preferably, the ball forging additive includes an initial propulsion hydraulic cylinder, which is fixed on a hydraulic cylinder fixing platform. The initial propulsion hydraulic cylinder drives the end face of the telescopic rod to collide with and contact the propulsion contact sensing platform. A pressure sensor is provided on the propulsion contact sensing platform, which is fixed on a motor slide block. The lower end of the motor slide block is limited to slide within the parallel slide rails.

[0014] Preferably, a secondary hydraulic propulsion cylinder is fixed at the center of the motor slide, and the hydraulic telescopic shaft of the secondary hydraulic propulsion cylinder is fixed on the propulsion sliding motor seat for secondary propulsion.

[0015] Preferably, the lower end of the propulsion sliding motor base is limited to slide on the parallel slide rail; the propulsion sliding motor base is provided with a base fixing threaded hole for fixing on the tee processing table.

[0016] Preferably, a rear hydraulic thruster is fixed between the symmetrically arranged ball forging additives, and the rear hydraulic thruster is fixed on the propulsion sliding motor seat of one of the ball forging additives; the telescopic clamp of the rear hydraulic thruster is fixed on the propulsion sliding motor seat of the other ball forging additive.

[0017] Preferably, a rotary motor is fixed on the propulsion sliding motor base, the drive shaft of the rotary motor is connected to the propulsion shaft through a coupling, and a ball support is fixed on the propulsion shaft, the ball support being semi-arc-shaped and fitting against the ball forging ball.

[0018] Preferably, a central strong-attracting electromagnetic block is fixed at the center of the inner wall of the spherical support platform; the central strong-attracting electromagnetic block is controlled by an electrical connection.

[0019] Other features and advantages of the invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of the invention may be realized and obtained by means of the structures particularly pointed out in this application.

[0020] The technical solution of the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. Attached Figure Description

[0021] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings:

[0022] Figure 1 This is a schematic diagram of the process flow structure of the present invention;

[0023] Figure 2 This is a schematic diagram of the first direction structure of the three-way ball forging tool of the present invention;

[0024] Figure 3 This is a schematic diagram of the second direction structure of the three-way ball forging tool of the present invention;

[0025] Figure 4 This is a schematic diagram of the side-by-side slide rail arrangement of the present invention;

[0026] Figure 5 This is a schematic diagram of the structure for fixing the tee fitting of the present invention;

[0027] Figure 6 This is a schematic diagram of the structure of the fixed clamping table and the arc-shaped clamping table of the present invention;

[0028] Figure 7 This is a partial structural diagram of the three-way ball forging tool of the present invention. Figure 1 ;

[0029] Figure 8 This is a structural schematic diagram of the tee fitting of the present invention;

[0030] Figure 9 This is a partial structural diagram of the three-way ball forging tool of the present invention. Figure 2 ;

[0031] Figure 10This is a schematic diagram of the structure of the ball forging additive of the present invention. Figure 1 ;

[0032] Figure 11 This is a schematic diagram of the structure of the ball forging additive of the present invention. Figure 2 ;

[0033] Figure 12 This is a schematic diagram of the structure of the ball forging additive of the present invention. Figure 3 ;

[0034] Figure 13 This is a schematic diagram of the structure of the ball forging additive of the present invention. Figure 4 .

[0035] In the diagram: 1. Tee processing table; 2. Parallel slide rail; 3. Ball forging additive; 4. Tee fitting; 5. Fixed clamping table; 6. Arc clamping table; 7. Rear hydraulic pusher; 10. Adjusting push bolt; 11. Central tube push clamp arc table; 12. Drag table; 13. Inclined table; 14. Inclined bolt; 15. Inclined push clamp; 16. Initial push hydraulic cylinder; 17. Hydraulic cylinder fixing table; 18. Push contact sensor table; 19. Motor slide; 20. Secondary hydraulic push cylinder; 21. Hydraulic telescopic shaft; 22. Push sliding motor seat; 23. Push shaft; 24. Ball support table; 25. Central strong suction electromagnetic block. Detailed Implementation

[0036] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0037] In the description of this application, it should be understood that the terms "middle," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application 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, and therefore should not be construed as a limitation of this application. The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "a plurality of" means two or more, unless otherwise explicitly specified.

[0038] Furthermore, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., 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 between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0039] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0040] Example 1: As Figure 1 — Figure 13 As shown, a manufacturing process for a socket weld tee for oil transportation includes the following steps:

[0041] S1: Place the stamped tee fitting 4 on the tee ball forging machine and clamp it in place;

[0042] S2: Add the forged ball to the port of the center pipe of the tee fitting 4;

[0043] S3: The ball forging sphere is pushed into the tee fitting 4 by a tee ball forging machine for extrusion addition;

[0044] S4: Push the ball forging sphere to the center of the tee fitting 4 to complete the ball forging of the central pipe;

[0045] S5: Then, the ball forging machine continues to press and push the ball from both ends of the tee fitting 4. The ball forging of the tee fitting 4 is completed by transversely and reciprocatingly inserting the ball forging ball into the tee fitting 4.

[0046] The working principle and beneficial effects of this embodiment are as follows: the stamped tee fitting 4 is placed on a tee ball forging machine and clamped and fixed; then, a ball forging ball of the corresponding size is added to the port of the central pipe of the tee fitting 4 to forge the central main pipe first; the ball forging ball is pushed into the tee fitting 4 by the tee ball forging machine for extrusion addition, and the inner wall of the just stamped tee fitting 4 is extruded by the corresponding ball forging ball, so that the fitting can achieve a better balance between strength, formability and durability.

[0047] After the forging of the central pipe is completed, the forged ball is pushed into the center of the tee fitting 4. The center of the tee fitting 4 can be stamped into a specified arc-shaped space to facilitate transportation and buffering. Then, the ball forging machine continues to push the ball from both ends of the tee fitting 4 through the forging machine. The ball is pushed into the tee fitting 4 by reciprocating laterally, thus completing the ball forging of the tee fitting 4. The forging and subsequent heat treatment of the inner wall of the tee fitting 4 transforms the carbides in the material (such as cementite in steel) from a plate-like or network-like structure into a spherical structure, reducing stress concentration and significantly improving plasticity and toughness.

[0048] Example 2: As Figure 1 — Figure 13 As shown, a manufacturing process for a socket weld tee for oil transportation is described. The tee ball forging machine includes a tee processing table 1, on which parallel slide rails 2 for tee forging are provided; three ball forging additives 3 are fixed on the tee processing table 1 along the tee direction and slide on the parallel slide rails 2; a fixed clamping table 5 and an arc-shaped clamping table 6 for clamping and fixing the tee fitting 4 are fixed at the center of the tee processing table 1; and a rear hydraulic pusher 7 is fixed between two symmetrically arranged ball forging additives 3.

[0049] The working principle and beneficial effects of this embodiment are as follows: The T-shaped processing table 1 is equipped with parallel slide rails 2 for T-shaped forging, which helps to reduce the transport extrusion force during the extrusion process; Three ball forging additives 3 are fixed on the T-shaped processing table 1 along the T-shaped direction and slide on the parallel slide rails 2. They are set in combination with the T-shaped structure to facilitate the placement of the T-shaped pipe fittings 4. The T-shaped processing table 1 is fixed with a fixed clamping table 5 and an arc-shaped clamping table 6 to clamp and fix the T-shaped pipe fittings 4, so that the T-shaped pipe fittings 4 can be clamped and fixed on the T-shaped processing table 1 for forging and fixing; A rear hydraulic pusher 7 is fixed between two symmetrically arranged ball forging additives 3. After the front extrusion push is completed, the subsequent connection push is carried out, which facilitates the ball forging of the T-shaped pipe fittings 4 of longer pipes.

[0050] Example 3: As Figure 1 — Figure 13 As shown, a manufacturing process for a socket weld tee for oil transportation is described. The fixed clamping table 5 includes a drag table 12, two inclined tables 13, two inclined bolts 14, and two inclined push clamps 15. The drag table 12 is fixed at the center of the tee processing table 1. Two inclined tables 13 are symmetrically fixed on the drag table 12. Two inclined bolts 14 are connected to the two inclined tables 13 by threaded connection. The two inclined bolts 14 rotate to drive the two inclined push clamps 15 to slide and limit their tilt on the drag table 12. The two symmetrically arranged inclined push clamps 15 are clamped at the two included angles of the tee fitting 4.

[0051] The working principle and beneficial effects of this embodiment are as follows: The platform 12 is fixed at the center of the tee processing table 1 to support the tee fitting 4. Two inclined platforms 13 are symmetrically fixed on the platform 12. Two inclined bolts 14 are connected to the two inclined platforms 13 by threaded engagement. By rotating the two inclined bolts 14, the two inclined push clamps 15 are driven to tilt and slide on the platform 12, thereby clamping the two symmetrically arranged inclined push clamps 15 at the two included angles of the tee fitting 4, thus clamping and fixing the included angles of the tee fitting 4. The overall fixing is achieved in conjunction with the arc-shaped clamping platform 6.

[0052] Example 4: Figure 1 — Figure 13 As shown, a manufacturing process for a socket welding tee for oil transportation is described. The rear end of the arc-shaped clamping platform 6 is connected to an adjusting push bolt 10 via a threaded connection. The adjusting push bolt 10 rotates at the center of the central tube push clamping arc platform 11, and the adjusting push bolt 10 drives the central tube push clamping arc platform 11 to slide on the arc-shaped clamping platform 6. The central tube push clamping arc platform 11 is clamped on the symmetrical side of the central tube of the tee fitting 4.

[0053] The working principle and beneficial effects of this embodiment are as follows: By rotating and adjusting the push bolt 10 on the arc-shaped clamping platform 6, the central tube push clamping arc platform 11 is limited and slidably pushed onto the arc-shaped clamping platform 6. Different styles can be selected and switched for use with different shaped tee fittings 4. The central tube push clamping arc platform 11 is clamped on the symmetrical side of the central tube of the tee fitting 4, and two inclined push clamps 15 are respectively clamped at the two included angles of the tee fitting 4, thereby achieving the effect of complete clamping and fixing, which is convenient for ball forging.

[0054] Example 5: Figure 1 — Figure 13 As shown, a manufacturing process for a socket weld tee for oil transportation is described. The ball forging additive 3 includes an initial propulsion hydraulic cylinder 16, which is fixed on a hydraulic cylinder fixing platform 17. The initial propulsion hydraulic cylinder 16 drives the end face of the telescopic rod to collide with and contact the propulsion contact sensing platform 18. A pressure sensor is installed on the propulsion contact sensing platform 18, which is fixed on a motor slide 19. The lower end of the motor slide 19 is limited to slide within the parallel slide rail 2.

[0055] The working principle and beneficial effects of this embodiment are as follows: When it is necessary to push the ball forging, the early-stage pushing hydraulic cylinder 16 is controlled and adjusted. Because it is fixed on the hydraulic cylinder fixing platform 17, the end face of the telescopic rod driven by the early-stage pushing hydraulic cylinder 16 collides with the pushing contact sensing platform 18, and the motor slide 19 with the pushing contact sensing platform 18 slides and pushes on the parallel slide rail 2. The pressure sensor is set on the upper pushing contact sensing platform 18 to receive real-time extrusion detection data. The lower end of the motor slide 19 is limited to slide within the parallel slide rail 2, which helps to reduce resistance.

[0056] Example 6: As Figure 1 — Figure 13 As shown, a manufacturing process for a socket weld tee for oil transportation is described, wherein a secondary hydraulic propulsion cylinder 20 is fixed at the center of the motor slide 19, and the hydraulic telescopic shaft 21 of the secondary hydraulic propulsion cylinder 20 is fixed on the propulsion sliding motor seat 22 for secondary propulsion.

[0057] The working principle and beneficial effects of this embodiment are as follows: after the initial propulsion hydraulic cylinder 16 reaches its upper limit, the second-stage hydraulic propulsion cylinder 20, which is fixed at the center of the motor slide 19, continues to propel the cylinder. The hydraulic telescopic shaft 21 of the second-stage hydraulic propulsion cylinder 20 is fixed on the propulsion sliding motor seat 22 for secondary propulsion, so that the propulsion sliding motor seat 22 can continue to slide and propel the cylinder on the parallel slide rail 2.

[0058] Example 7: As Figure 1 — Figure 13 As shown, a manufacturing process for a socket weld tee for oil transportation is described, wherein the lower end of the propulsion sliding motor base 22 is limited to slide on the parallel slide rail 2; the propulsion sliding motor base 22 is provided with a base fixing threaded hole for fixing on the tee processing table 1.

[0059] The working principle and beneficial effects of this embodiment are as follows: When using the symmetrical transverse ball forging adder 3, the non-working end of the push sliding motor seat 22 needs to be fixed on the tee processing table 1, so that one end of the rear hydraulic pusher 7 can be fixed, so that it can continue to push the sliding motor seat 22 into the tee fitting 4 to continue the subsequent extrusion and pushing of the ball forging ball.

[0060] Example 8: As Figure 1 — Figure 13 As shown, a manufacturing process for a socket weld tee for oil transportation is described. A rear hydraulic thruster 7 is fixed between the symmetrically arranged ball forging additives 3. The rear hydraulic thruster 7 is fixed on the propulsion sliding motor seat 22 of one of the ball forging additives 3. The telescopic clamp of the rear hydraulic thruster 7 is fixed on the propulsion sliding motor seat 22 of the other ball forging additive 3.

[0061] The working principle and beneficial effects of this embodiment are as follows: By fixing a rear hydraulic pusher 7 between the symmetrically arranged ball forging adders 3, and because the rear hydraulic pusher 7 is fixed on the push sliding motor seat 22 of one of the ball forging adders 3, and the telescopic clamp of the rear hydraulic pusher 7 is fixed on the push sliding motor seat 22 of the other ball forging adder 3, when driving the rear hydraulic pusher 7 for use, it is necessary to fix one side of the push sliding motor seat 22, so that one end of the rear hydraulic pusher 7 is fixed and the other end is movable, so that the push sliding motor seat 22 can continue to be inserted into the tee fitting 4 to continue the subsequent extrusion and pushing of the ball forging ball.

[0062] Example 9: As Figure 1 — Figure 13 As shown, a manufacturing process for a socket weld tee for oil transportation is described. A rotary motor is fixed on the propulsion sliding motor base 22. The drive shaft of the rotary motor is connected to the propulsion shaft 23 through a coupling. A ball support 24 is fixed on the propulsion shaft 23. The ball support 24 is semi-arc-shaped and fits against the ball forging ball.

[0063] The working principle and beneficial effects of this embodiment are as follows: A rotary motor is fixed on the sliding motor base 22, and the drive shaft of the rotary motor is connected to the push shaft 23 through a coupling. The rotary motor is used to drive the ball forging ball to rotate during the push forging process, thereby enabling it to be extruded on the tee fitting 4 and improving the forging effect. A ball support platform 24 is fixed on the push shaft 23. The ball support platform 24 is semi-arc-shaped and fits on the ball forging ball. The shape is adapted to ensure that the ball forging ball has the function of clamping and pushing.

[0064] Example 10: As Figure 1 — Figure 13 As shown, a manufacturing process for a socket weld tee for oil transportation is described, wherein a central strong electromagnetic block 25 is fixed at the center of the inner wall of the spherical support platform 24; the central strong electromagnetic block 25 is controlled by electrical connection.

[0065] The working principle and beneficial effects of this embodiment are as follows: In order to prevent the ball forging sphere from detaching during the forging process, a central strong suction electromagnetic block 25 is fixed in the center of the inner wall of the ball support platform 24; the central strong suction electromagnetic block 25 is controlled by electrical connection, and the power on and power off effect is realized according to the requirements, which has the effect of stabilizing the ball forging sphere and ensuring that the pushing extrusion forging effect is obvious.

[0066] The above description is not intended to limit the present invention, nor is the present invention limited to the examples given above. Any changes, modifications, additions, or substitutions made by those skilled in the art within the scope of the present invention are also within the protection scope of the present invention.

Claims

1. A manufacturing process for a socket weld tee for oil transportation, characterized in that: Includes the following steps: S1: Place the stamped tee fitting (4) on the tee ball forging machine and clamp it in place; S2: Add the ball-forged sphere to the port of the central pipe of the tee fitting (4); S3: The ball forging ball is pushed into the tee fitting (4) by the tee ball forging machine for extrusion addition; S4: Push the ball-forged sphere to the center of the tee fitting (4) to complete the sphere forging of the central pipe; S5: Then, the ball forging machine is used to continue to press and push the ball from both ends of the tee fitting (4). The ball forging ball is then placed into the tee fitting (4) by transverse reciprocating motion, thus completing the ball forging of the tee fitting (4). The three-way ball forging machine includes a three-way processing table (1), on which three ball forging additives (3) are fixed along the three-way direction and slide on parallel slide rails (2); The ball forging additive (3) includes an early-stage propulsion hydraulic cylinder (16), which is fixed on a hydraulic cylinder fixing platform (17). The early-stage propulsion hydraulic cylinder (16) drives the end face of the telescopic rod to collide with the propulsion contact sensing platform (18). A pressure sensor is provided on the propulsion contact sensing platform (18), which is fixed on a motor slide (19). The lower end of the motor slide (19) is limited to slide within the parallel slide rail (2). The motor slide (19) is fixed with a secondary hydraulic propulsion cylinder (20) at its center. The hydraulic telescopic shaft (21) of the secondary hydraulic propulsion cylinder (20) is fixed on the propulsion sliding motor seat (22) for secondary propulsion. A rotary motor is fixed on the propulsion sliding motor seat (22). The drive shaft of the rotary motor is connected to the propulsion shaft (23) through a coupling. A ball support (24) is fixed on the propulsion shaft (23). The ball support (24) is in a semi-arc shape and fits against the ball forging ball. A central strong electromagnetic block (25) is fixed at the center of the inner wall of the ball support platform (24); the central strong electromagnetic block (25) is controlled by electrical connection.

2. The manufacturing process of a socket weld tee for oil transportation according to claim 1, characterized in that: The tee processing table (1) is provided with parallel slide rails (2) for tee forging; a fixed clamping table (5) and an arc-shaped clamping table (6) for clamping the tee fitting (4) are fixed on the center of the tee processing table (1); a rear hydraulic pusher (7) is fixed between two symmetrically arranged ball forging additives (3).

3. The manufacturing process of a socket weld tee for oil transportation according to claim 2, characterized in that: The fixed clamping table (5) includes a drag table (12), two inclined tables (13), two inclined bolts (14) and two inclined push clamps (15). The drag table (12) is fixed at the center of the tee processing table (1). Two inclined tables (13) are symmetrically fixed on the drag table (12). Two inclined bolts (14) are connected to the two inclined tables (13) respectively by threaded connection. The two inclined bolts (14) rotate to drive the two inclined push clamps (15) to slide on the drag table (12) at an inclined limit. The two inclined push clamps (15) are symmetrically arranged and clamped at the two included angles of the tee fitting (4).

4. The manufacturing process of a socket weld tee for oil transportation according to claim 2, characterized in that: The rear end of the arc-shaped clamping platform (6) is connected to an adjusting push bolt (10) by a threaded connection. The adjusting push bolt (10) rotates at the center of the central tube push clamping arc platform (11). The adjusting push bolt (10) drives the central tube push clamping arc platform (11) to slide on the arc-shaped clamping platform (6) in a limited position. The central tube push clamping arc platform (11) is clamped on the symmetrical side of the central tube of the tee fitting (4).

5. The manufacturing process of a socket weld tee for oil transportation according to claim 1, characterized in that: The lower end of the propulsion sliding motor base (22) is limited to slide on the parallel slide rail (2); the propulsion sliding motor base (22) is provided with a base fixing thread hole for fixing on the three-way processing table (1).

6. The manufacturing process of a socket weld tee for oil transportation according to claim 2, characterized in that: A rear hydraulic thruster (7) is fixed between the symmetrically arranged ball forging additives (3). The rear hydraulic thruster (7) is fixed on the propulsion sliding motor seat (22) of one of the ball forging additives (3). The telescopic clamp of the rear hydraulic thruster (7) is fixed on the propulsion sliding motor seat (22) of the other ball forging additive (3).

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