Welding equipment for petroleum drill bit machining

Abstract

The welding equipment for petroleum drill bit machining comprises a base, an equipment box is fixedly installed at the top of the base, a connecting shaft rotationally connected with the equipment box is arranged on the outer wall of one side of the equipment box in a penetrating mode, and a three-jaw chuck located outside the equipment box is arranged at one end of the connecting shaft; a rotating assembly connected with the connecting shaft is arranged on the equipment box, and a spiral welding assembly is arranged on one side of the connecting shaft. By starting the motor, the welding gun can move in the axis direction of the drill rod and rotate around the axis direction of the rotating pipe at the same time, then welding of the spiral blade can be completed, meanwhile, after welding of the spiral blade and the drill rod is completed, argon can be automatically blown to a spiral welding seam so that the welding seam can be protected, and the welding efficiency can be improved. And after welding of one spiral blade is completed, the drill rod can intermittently rotate by a certain angle, continuous welding of the spiral blades is facilitated, and the working efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of oil drill bit processing, and particularly relates to a welding device for oil drill bit processing. Background Art

[0002] As a key tool in the process of oil exploration and exploitation, the performance and quality of oil drill bits directly affect the efficiency, cost, and safety of drilling operations. With the rapid development of the oil industry, the performance requirements for oil drill bits are increasing day by day. Not only do they need to have high hardness and high wear resistance to cope with complex geological conditions, but they also need to have good impact resistance and thermal stability to adapt to the high-temperature and high-pressure downhole environment.

[0003] Welding, as an important process for firmly connecting the various components of the drill bit, directly determines the overall performance and service life of the drill bit. Especially for the welding of spiral blades and drill pipes, due to the complex weld shape, it increases the operation difficulty and is also difficult to ensure the consistency of welding quality, and it is inconvenient to use. Therefore, we propose a welding device for oil drill bit processing. Summary of the Invention

[0004] The purpose of the present invention is to solve the deficiencies existing in the prior art and propose a welding device for oil drill bit processing.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0006] A welding device for oil drill bit processing, including a base, a device box is fixedly installed on the top of the base, a connecting shaft rotatably connected to the device box is penetrated through one outer wall of the device box, a three-jaw chuck located outside the device box is arranged at one end of the connecting shaft, a rotating assembly connected to the connecting shaft is arranged on the device box, a spiral welding assembly is arranged on one side of the connecting shaft, a weld protection assembly is arranged on the spiral welding assembly, and a driving assembly connected to the rotating assembly and the spiral welding assembly is arranged on the device box.

[0007] Preferably, the rotating assembly includes a rotating shaft rotatably connected to the inner wall of the device box, a turntable is fixedly installed at one end of the rotating shaft, a sector-shaped limiting plate is fixedly installed on the side wall of the turntable away from the rotating shaft, a sliding rod is rotatably connected to the side wall of the turntable away from the rotating shaft, an installation plate located inside the device box is fixedly installed on the outer wall of the connecting shaft, a plurality of first grooves and a plurality of second grooves are opened on the outer edge of the installation plate, a driving motor is fixedly installed on one outer wall of the device box, and one end of the rotating shaft penetrates through one inner wall of the device box and is fixedly connected to the output shaft of the driving motor.

[0008] Preferably, the spiral welding assembly includes an axial displacement cylinder fixedly installed on the outer side wall of the first equipment box. Two connecting rods that are slidably connected to the axial displacement cylinder penetrate through the outer wall of the end of the axial displacement cylinder. The ends of the two connecting rods located inside the axial displacement cylinder are fixedly installed with the same second sliding plug that is slidably connected to the inner wall of the axial displacement cylinder. The ends of the two connecting rods located outside the axial displacement cylinder are fixedly installed with the same auxiliary plate. A rotating tube that is rotatably connected to the auxiliary plate penetrates through the auxiliary plate. One end of the rotating tube is fixedly installed with a mounting block, and a laser welding gun penetrates through the mounting block. A fixed rod located inside the rotating tube is fixedly installed on the outer wall of the end of the axial displacement cylinder. A driving groove is formed on the outer wall of the fixed rod, and a driving block is fixedly installed on the inner wall of the rotating tube.

[0009] Preferably, the weld protection assembly includes a partition block fixedly installed on the inner wall of the rotating tube. A second round hole is formed in the partition block. One end of the fixed rod close to the partition block is fixedly installed with a second puncturing rod. One end of a second tension spring is fixedly connected to the side wall of the partition block away from the fixed rod, and the other end of the second tension spring is fixedly connected to a third sliding plug that is slidably connected to the inner wall of the rotating tube. An air storage box is arranged on the side wall of the auxiliary plate away from the axial displacement cylinder. An air outlet pipe and a telescopic hose that are connected to the inside of the rotating tube are arranged on the rotating tube. Both the air outlet pipe and the telescopic hose are located on the side of the third sliding plug away from the second puncturing rod. One-way valves are arranged in both the air outlet pipe and the telescopic hose. The end of the telescopic hose away from the rotating tube is connected to the air storage box.

[0010] Preferably, the driving assembly includes a guiding rod fixedly connected between the inner walls at both ends of the equipment box. The same moving block is slidably sleeved on the two guiding rods. A sliding groove is formed in the moving block. The sliding rod penetrates through the sliding groove and is slidably connected to the inner wall of the sliding groove. A driving box is fixedly installed on one inner wall of the equipment box. A first round hole is formed in the side wall of the driving box close to the moving block. One end of a first tension spring is fixedly connected to the inner wall of the end of the driving box close to the moving block, and the other end of the first tension spring is fixedly connected to a first sliding plug. A first puncturing rod is fixedly installed on the side wall of the moving block close to the driving box. A connecting pipe that is connected to the inside of the driving box is arranged on the driving box. The end of the connecting pipe connected to the driving box is located on the side of the first sliding plug away from the first tension spring, and the other end of the connecting pipe is connected to the axial displacement cylinder. The end of the connecting pipe connected to the axial displacement cylinder is located on the side of the second sliding plug away from the connecting rod.

[0011] Preferably, the sector-shaped limiting disk is adapted to a plurality of first grooves, and the sliding rod is adapted to a plurality of second grooves. The plurality of first grooves and the plurality of second grooves are distributed at intervals.

[0012] Preferably, the driving groove is arc-shaped and extends along the axial direction of the fixed rod, and the driving block is located in the driving groove and is slidably connected to the driving groove.

[0013] Preferably, the second punching rod is adapted to the second round hole, and the first punching rod is adapted to the first round hole.

[0014] Advantages of the present invention:

[0015] By providing the spiral welding assembly, the welding torch can be made to move along the axial direction of the clamped drill pipe and rotate around the axial direction of the rotating pipe by starting the motor, and thus a spiral welding track can be generated, meeting the welding seam requirements of the spiral blade and the drill pipe.

[0016] By providing the welding seam protection assembly, after the welding of one spiral blade is completed by starting the motor, argon can be automatically blown into the spiral welding seam, thereby effectively isolating oxygen in the air, preventing the welding seam from reacting with oxygen at high temperatures, and thus avoiding oxidation of the welding seam.

[0017] By providing the rotating assembly and the driving assembly, after the welding of the drill pipe and one spiral blade is completed, the drill pipe can be automatically rotated by a certain angle, which is convenient for welding the next spiral blade, facilitating continuous welding and improving work efficiency.

[0018] In the present invention, by starting the motor, the welding torch can move along the axial direction of the drill pipe and rotate around the axial direction of the rotating pipe, thereby completing the welding of the spiral blade. At the same time, after the spiral blade and the drill pipe are welded, argon can be automatically blown into the spiral welding seam to protect the welding seam. And after the welding of one spiral blade is completed, the drill pipe can be intermittently rotated by a certain angle, facilitating the continuous welding of the spiral blade and improving work efficiency. Brief Description of the Drawings

[0019] Figure 1 is a three-dimensional structural schematic diagram of one side of a welding device for oil drill bit processing proposed by the present invention;

[0020] Figure 2 is a three-dimensional structural schematic diagram of the other side of a welding device for oil drill bit processing proposed by the present invention;

[0021] Figure 3 is a three-dimensional schematic diagram of the rear side of the internal structure of the device box of the present invention;

[0022] Figure 4 is a three-dimensional schematic diagram of the front side of the internal structure of the device box of the present invention;

[0023] Figure 5Schematic three-dimensional structure diagram of the spiral welding assembly, weld protection assembly and drive assembly of the present invention;

[0024] Figure 6 Attached to the present invention Figure 5 Enlarged structure diagram of part A in the figure;

[0025] Figure 7 Schematic three-dimensional structure diagram of the fixed rod and drive groove of the present invention.

[0026] In the figure: 1 base, 2 equipment box, 3 connecting pipe, 4 axial displacement cylinder, 5 rotating pipe, 6 connecting rod, 7 air storage box, 8 laser welding gun, 9 mounting block, 10 three-jaw chuck, 11 connecting shaft, 12 drive motor, 13 drive box, 14 guide rod, 15 moving block, 16 chute, 17 first groove, 18 second groove, 19 turntable, 20 rotating shaft, 21 mounting plate, 22 first punching rod, 23 sector-shaped limiting plate, 24 sliding rod, 25 first sliding plug, 26 first tension spring, 27 first round hole, 28 second sliding plug, 29 fixed rod, 30 auxiliary plate, 31 air outlet pipe, 32 drive groove, 33 drive block, 34 second round hole, 35 partition block, 36 second tension spring, 37 second punching rod, 38 third sliding plug, 39 telescopic hose. Specific embodiments

[0027] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0028] Refer to Figures 1 - 7, A welding device for processing oil drilling bits, including a base 1. A device box 2 is fixedly installed on the top of the base 1. A connecting shaft 11 that is rotatably connected to it penetrates through an outer wall of the device box 2. One end of the connecting shaft 11 is provided with a three-jaw chuck 10 located outside the device box 2. The drill pipe can be clamped and limited by the three-jaw chuck 10. A rotating component connected to the connecting shaft 11 is arranged on the device box 2. By setting the rotating component, the clamped and limited drill pipe can automatically rotate a certain angle after one spiral blade is welded. The rotating component includes a rotating shaft 20 rotatably connected to an inner wall of the device box 2. One end of the rotating shaft 20 is fixedly installed with a turntable 19. A sector-shaped limiting plate 23 is fixedly installed on a side wall of the turntable 19 away from the rotating shaft 20. A sliding rod 24 is rotatably connected to a side wall of the turntable 19 away from the rotating shaft 20. An installation disk 21 located inside the device box 2 is fixedly installed on the outer wall of the connecting shaft 11. A plurality of first grooves 17 and a plurality of second grooves 18 are arranged on the outer edge of the installation disk 21. A driving motor 12 is fixedly installed on an outer wall of the device box 2. One end of the rotating shaft 20 penetrates through a side inner wall of the device box 2 and is fixedly connected to the output shaft of the driving motor 12. The sector-shaped limiting plate 23 is adapted to the plurality of first grooves 17, and the sliding rod 24 is adapted to the plurality of second grooves 18. The plurality of first grooves 17 and the plurality of second grooves 18 are distributed at intervals.

[0029] A spiral welding component is arranged on one side of the connecting shaft 11. Through the spiral welding component, the laser welding torch 8 can generate a spiral welding track, thereby meeting the welding requirements of the spiral blade. The spiral welding component includes an axial displacement cylinder 4 fixedly installed on an outer side wall of the device box 2. Two connecting rods 6 that are slidably connected to it penetrate through an outer wall of the end of the axial displacement cylinder 4. One ends of the two connecting rods 6 located inside the axial displacement cylinder 4 are fixedly installed with the same second sliding plug 28 that is slidably connected to the inner wall of the axial displacement cylinder 4. One ends of the two connecting rods 6 located outside the axial displacement cylinder 4 are fixedly installed with the same auxiliary plate 30. A rotating tube 5 that is rotatably connected to it penetrates through the auxiliary plate 30. One end of the rotating tube 5 is fixedly installed with a mounting block 9. A laser welding torch 8 penetrates through the mounting block 9. A fixing rod 29 located inside the rotating tube 5 is fixedly installed on an outer wall of the end of the axial displacement cylinder 4. A driving groove 32 is arranged on the outer wall of the fixing rod 29. A driving block 33 is fixedly installed on the inner wall of the rotating tube 5. The driving groove 32 is arc-shaped and extends along the axial direction of the fixing rod 29. The driving block 33 is located in the driving groove 32 and is slidably connected to the driving groove 32.

[0030] A weld protection assembly is provided on the spiral welding assembly. Through the weld protection assembly, after the spiral blade is welded, argon can be automatically blown to the weld to protect the weld. The weld protection assembly includes a partition block 35 fixedly installed on the inner wall of the rotating tube 5. A second round hole 34 is provided on the partition block 35. One end of the fixing rod 29 close to the partition block 35 is fixedly installed with a second puncturing rod 37. One end of a second tension spring 36 is fixedly connected to the side wall of the partition block 35 away from the fixing rod 29. The other end of the second tension spring 36 is fixedly connected to a third sliding plug 38 slidably connected to the inner wall of the rotating tube 5. A gas storage box 7 is provided on the side wall of the auxiliary plate 30 away from the axial displacement cylinder 4. The rotating tube 5 is provided with an air outlet pipe 31 and a telescopic hose 39 communicating with its interior. Both the air outlet pipe 31 and the telescopic hose 39 are located on the side of the third sliding plug 38 away from the second puncturing rod 37. Check valves are provided in both the air outlet pipe 31 and the telescopic hose 39. One end of the telescopic hose 39 away from the rotating tube 5 is communicated with the gas storage box 7.

[0031] A driving assembly connected to the rotating assembly and the spiral welding assembly is provided on the equipment box 2. Through the driving assembly, the laser welding gun 8 can be moved. The driving assembly includes a guiding rod 14 fixedly connected between the inner walls at both ends of the equipment box 2. The same moving block 15 is slidably sleeved on the two guiding rods 14. A sliding groove 16 is provided on the moving block 15. A sliding rod 24 penetrates through the sliding groove 16 and is slidably connected to the inner wall of the sliding groove 16. A driving box 13 is fixedly installed on one inner wall of the equipment box 2. A first round hole 27 is provided on the side wall of the driving box 13 close to the moving block 15. One end of a first tension spring 26 is fixedly connected to the inner wall of the driving box 13 close to the moving block 15. The other end of the first tension spring 26 is fixedly connected to a first sliding plug 25. A first puncturing rod 22 is fixedly installed on the side wall of the moving block 15 close to the driving box 13. A connecting pipe 3 communicating with its interior is provided on the driving box 13. One end of the connecting pipe 3 communicating with the driving box 13 is located on the side of the first sliding plug 25 away from the first tension spring 26. The other end of the connecting pipe 3 is communicated with the axial displacement cylinder 4. One end of the connecting pipe 3 communicating with the axial displacement cylinder 4 is located on the side of the second sliding plug 28 away from the connecting rod 6. The second puncturing rod 37 is adapted to the second round hole 34, and the first puncturing rod 22 is adapted to the first round hole 27.

[0032] When the present invention is in use, the drill rod part is clamped and fixed by the three-jaw chuck 10. Subsequently, the spiral blade is pressed against the outside of the drill rod and close to the position of the laser welding gun 8 by the manipulator (both the three-jaw chuck 10 and the manipulator not shown are prior arts and will not be elaborated). Subsequently, the driving motor 12 is started, and the output shaft of the driving motor 12 drives the rotating shaft 20, the turntable 19 and the sector-shaped limiting disc 23 to rotate (the rotation direction is attached Figure 4In the clockwise state), the turntable 19 rotates to make the sliding rod 24 rotate around the axis of the rotating shaft 20. During the initial rotation of the sliding rod 24 by ninety degrees, by setting the guide rod 14, the moving block 15, and the sliding groove 23, the moving block 15 and the first stabbing rod 22 can be made to move in the direction closer to the drive box 13. The moving first stabbing rod 22 will contact the first sliding plug 25 and make the first sliding plug 25 move in the direction away from the axial displacement cylinder 4, and the first tension spring 26 is stretched. The movement of the first sliding plug 25 will gradually squeeze the incompressible fluid located on the side of the first sliding plug 25 away from the first tension spring 26 in the drive box 13 into the axial displacement cylinder 4 through the connecting pipe 3, and then the second sliding plug 28 can be made to move in the direction closer to the fixed rod 29;

[0033] By setting the connecting rod 6, the auxiliary plate 30, the rotating pipe 5, and the laser welding gun 8 can be made to move along the axial direction of the clamped drill pipe. During the movement of the rotating pipe 5, since the driving block 33 is located in the arc-shaped driving groove 32, the rotating pipe 5 can be made to rotate around the auxiliary plate 30 (with a small rotation angle). The rotation of the rotating pipe 5 makes the laser welding gun 8 rotate accordingly. Therefore, while the laser welding gun 8 moves along the axis direction of the drill pipe, it also rotates around the axis of the rotating pipe 5, and then the laser welding gun 8 can move in a spiral manner, thus adapting to the welding seam requirements of the spiral blade. Since in the initial state, the second stabbing rod 37 contacts the third sliding plug 38, and the second tension spring 36 is in a stretched state, during the movement of the rotating pipe 5, the second tension spring 36 can be gradually restored to its original length, and the third sliding plug 38 gradually moves in the direction closer to the partition block 35, and then the argon gas in the gas storage box 7 is sucked into the rotating pipe 5 through the telescopic hose 39 to protect the welding seam;

[0034] During the next rotation of the sliding rod 24 by ninety degrees, by setting the guide rod 14, the moving block 15, and the sliding groove 23, the moving block 15 and the first stabbing rod 22 can be made to move in the direction away from the drive box 13. Through the pulling force generated by the stretching of the first tension spring 26, the first sliding plug 25 can be made to move in the direction closer to the axial displacement cylinder 4 to reset, and then the rotating pipe 5 can be made to move in the direction closer to the axial displacement cylinder 4 and rotate in the reverse direction at the same time. The second stabbing rod 37 makes the third sliding plug 38 move in the direction away from the partition block 35, and then the argon gas in the rotating pipe 5 is extruded through the air outlet pipe 31 and blown onto the spiral welding seam, so that the oxygen in the air can be effectively isolated, preventing the welding seam from reacting with oxygen at high temperatures, and thus avoiding the oxidation of the welding seam;

[0035] During the third 90-degree rotation of the sliding rod 24, the manipulator no longer presses the spiral blade against the outer side of the drill pipe. The moving block 15 moves away from the driving box 13 again. The first punching rod 22 moves away from the first sliding plug 25, and the first sliding plug 25 does not move. Consequently, the laser welding gun 8 does not move either. Finally, during the fourth 90-degree rotation of the sliding rod 24 until it returns to the initial position, through the mutual cooperation of the sector-shaped limiting disk 23 and the first groove 17 and the mutual cooperation of the sliding rod 24 and the second groove 18, the mounting disk 21, the connecting shaft 11, and the drill pipe clamped and limited by the three-jaw chuck 10 can be intermittently rotated by a certain angle. The moving block 15 moves towards the driving box 13 and returns to the initial position. Subsequently, the manipulator presses another spiral blade against the outer side of the drill pipe, and so on, repeating the process to complete the welding of multiple spiral blades to the drill pipe.

[0036] The above description is only the preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, making equivalent substitutions or changes, should be covered within the protection scope of the present invention.

Claims

1. A welding device for oil drill bit processing, comprising a base (1), characterized in that: A device box (2) is fixedly mounted on the top of the base (1); a connecting shaft (11) rotatably connected to the device box (2) is provided through an outer wall of one side of the device box (2); a three-jaw chuck (10) located outside the device box (2) is provided at one end of the connecting shaft (11); a rotating assembly connected to the connecting shaft (11) is provided on the device box (2); a spiral welding assembly is provided on one side of the connecting shaft (11); a weld protection assembly is provided on the spiral welding assembly; and a driving assembly connected to the rotating assembly and the spiral welding assembly is provided on the device box (2).

2. The welding equipment for oil drill bit processing according to claim 1 is characterized in that: The rotating assembly comprises a rotating shaft (20) on an inner wall of a device box (2) which is rotatably connected, a rotating disk (19) being fixedly mounted on one end of the rotating shaft (20), a fan-shaped limiting disk (23) being fixedly mounted on a side wall of the rotating disk (19) away from the rotating shaft (20), a sliding rod (24) being rotatably connected on a side wall of the rotating disk (19) away from the rotating shaft (20), a mounting disk (21) located in the device box (2) being fixedly mounted on the outer wall of the connecting shaft (11), a plurality of first grooves (17) and a plurality of second grooves (18) being formed on the outer edge of the mounting disk (21), a driving motor (12) being fixedly mounted on an outer wall of the device box (2), one end of the rotating shaft (20) passing through an inner wall of one side of the device box (2) and being fixedly connected to an output shaft of the driving motor (12).

3. The welding equipment for oil drill bit processing according to claim 2 is characterized in that: The spiral welding assembly comprises an axial displacement cylinder (4) fixedly mounted on an outer side wall of an equipment box (2); two connecting rods (6) slidably connected to the axial displacement cylinder (4) are provided on the outer side wall of the end of the axial displacement cylinder (4); a second sliding plug (28) slidably connected to the inner side wall of the axial displacement cylinder (4) is fixedly mounted on one end of the two connecting rods (6) located inside the axial displacement cylinder (4); a second auxiliary plate (30) is fixedly mounted on one end of the two connecting rods (6) located outside the axial displacement cylinder (4); a rotating tube (5) rotatably connected to the auxiliary plate (30) is provided on the auxiliary plate (30); a mounting block (9) is fixedly mounted on one end of the rotating tube (5); a laser welding gun (8) is provided on the mounting block (9); a fixing rod (29) located inside the rotating tube (5) is fixedly mounted on the outer side wall of the axial displacement cylinder (4); a driving groove (32) is provided on the outer side wall of the fixing rod (29); and a driving block (33) is fixedly mounted on the inner side wall of the rotating tube (5).

4. The welding equipment for oil drill bit processing according to claim 3 is characterized in that: The weld protection assembly comprises a spacer (35) fixedly mounted on the inner wall of the rotating tube (5), the spacer (35) being provided with a second circular hole (34), a second poking rod (37) being fixedly mounted on one end of the fixing rod (29) close to the spacer (35), one end of a second tension spring (36) being fixedly connected to a side wall of the spacer (35) away from the fixing rod (29), the other end of the second tension spring (36) being fixedly connected to a third sliding plug (38) slidably connected to the inner wall of the rotating tube (5), and the auxiliary plate (30) An air storage box (7) is arranged on a side wall away from the axial displacement cylinder (4), and an air outlet pipe (31) and a telescopic hose (39) which are connected to the interior of the rotating tube (5) are arranged on the rotating tube (5). The air outlet pipe (31) and the telescopic hose (39) are both located on a side of the third sliding plug (38) away from the second poking rod (37). A one-way valve is arranged in the air outlet pipe (31) and the telescopic hose (39), and one end of the telescopic hose (39) away from the rotating tube (5) is connected to the air storage box (7).

5. The welding equipment for oil drill bit processing according to claim 4 is characterized in that: The driving assembly comprises a guide rod (14) fixedly connected between the inner walls at both ends of the equipment box (2); the two guide rods (14) are slidably sleeved with the same moving block (15); the moving block (15) is provided with a slide groove (16); the sliding rod (24) passes through the slide groove (16) and is slidably connected to the inner wall of the slide groove (16); a driving box (13) is fixedly installed on the inner wall of one side of the equipment box (2); a first circular hole (27) is provided on a side wall of the driving box (13) close to the moving block (15); a first tension spring (26) is fixedly connected to the inner wall of one end of the driving box (13) close to the moving block (15); ), the other end of the first tension spring (26) is fixedly connected to a first sliding plug (25), a first poking rod (22) is fixedly installed on a side wall of the moving block (15) close to the driving box (13), the driving box (13) is provided with a connecting tube (3) connected to the interior thereof, the end of the connecting tube (3) connected to the driving box (13) is located on a side of the first sliding plug (25) away from the first tension spring (26), the other end of the connecting tube (3) is connected to the axial displacement cylinder (4), and the end of the connecting tube (3) connected to the axial displacement cylinder (4) is located on a side of the second sliding plug (28) away from the connecting rod (6).

6. The welding equipment for oil drill bit processing according to claim 2, characterized in that: The sector-shaped limiting plate (23) is matched with a plurality of first grooves (17), the sliding rod (24) is matched with a plurality of second grooves (18), and the plurality of first grooves (17) and the plurality of second grooves (18) are distributed in an interval manner.

7. The welding equipment for oil drill bit processing according to claim 3 is characterized in that: The driving groove (32) is arc-shaped and extends along the axial direction of the fixing rod (29); the driving block (33) is located in the driving groove (32) and is slidably connected to the driving groove (32).

8. The welding equipment for oil drill bit processing according to claim 5, characterized in that: The second poking rod (37) is matched with the second circular hole (34), and the first poking rod (22) is matched with the first circular hole (27).

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