Thread machining equipment for petroleum drill rod joint

Abstract

The invention relates to the technical field of thread machining, and particularly discloses petroleum drill rod joint thread machining equipment which comprises an annular base, a fixing device is fixedly connected to the bottom of the inner wall of the annular base, and a cutting device is fixedly connected to the top of the annular base. The part, located on one side of the cutting device, of the inner wall of the annular base is fixedly connected with a supporting device, the top of the worm wheel penetrates through and is slidably connected with a sliding column, the bottom of the sliding column is fixedly connected with a stud, the side face of the stud is in threaded connection with a threaded sleeve, and the top of the sliding column is fixedly connected with a supporting assembly. The side face of the rotating support is fixedly connected with the side face of the cutting device, the side face of the threaded sleeve is fixedly connected with the side face of the cutting device, and the thread machining equipment for the petroleum drill rod connector achieves the purpose of counteracting the influence of single cutting force on the straightness of a guide rod.

Description

Technical Field

[0001] This invention relates to the field of thread processing technology, specifically to a thread processing device for oil drill pipe joints. Background Technology

[0002] Oil drill pipe is the "main artery" of oil and gas drilling operations, responsible for transmitting torque, delivering drilling fluid, and withstanding enormous tensile, compressive, bending, and torsional loads. Drill pipes are connected via drill pipe joints, and the core of this connection is its precision threads. The quality of thread machining directly determines the strength, sealing, and fatigue resistance of the drill pipe connection, and even the safety and reliability of the entire drill string. Therefore, drill pipe joint thread machining equipment is a crucial link in the oil equipment industry chain. Before discussing the machining equipment, it is essential to understand the stringent requirements of the objects being machined. These requirements directly determine the design and evolution of the equipment. Standards impose extremely strict tolerance requirements (typically accurate to 0.001 inches or 0.025 mm) on parameters such as the tooth profile (e.g., V-0.038R, V-0.040, V-0.050), taper, pitch, tooth height, and thread clearance of drill pipe threads. The threads are usually tapered pipe threads, and the machining process involves complex linkages. Drill pipe joints are usually made of high-strength alloy steel (such as AISI 4145H), which is heat-treated, has high hardness and good toughness, and is a difficult-to-machine material. This places extremely high demands on the rigidity, power, and wear resistance of machine tools and cutting tools. The joints are large in size and heavy in weight (the length can reach several meters and the weight can reach several tons), requiring the equipment to have a large load-bearing capacity, a large stroke, and excellent stability. The threads must be able to withstand the high pressure, high temperature, corrosive media, and severe vibration and impact loads downhole. Any minor machining defect may lead to sticking, leakage, or even catastrophic accidents such as derailment and blowout.

[0003] Currently, machining relies on tapping sleeves for rotary cutting and tapping. Size adaptation requires a ring-shaped process, and tapping sleeves are not conducive to chip removal. At the same time, a single cutting tool is not suitable for long-term operation and is prone to overheating and accelerated wear. Summary of the Invention

[0004] To achieve the above objectives, the present invention is implemented through the following technical solution: a thread processing device for an oil drill pipe joint, comprising an annular base, a fixing device fixedly connected to the bottom of the inner wall of the annular base, a cutting device fixedly connected to the top of the annular base, and a support device fixedly connected to the portion of the inner wall of the annular base located on the side of the cutting device.

[0005] The fixing device includes a rotating bracket, a worm gear rotatably connected to the top of the rotating bracket, an electric worm gear meshing with the side of the worm gear, the electric worm gear being rotatably connected to the top of the rotating bracket via the bracket, a sliding post penetrating and slidably connected to the top of the worm gear, a stud fixedly connected to the bottom of the sliding post, a threaded sleeve threadedly connected to the side of the stud, a support assembly fixedly connected to the top of the sliding post, the side of the rotating bracket being fixedly connected to the side of the cutting device, and the side of the threaded sleeve being fixedly connected to the side of the cutting device. When the electric worm gear is activated, its rotation drives the worm gear to rotate. The worm gear rotates, driving the sliding column to rotate. The sliding column rotates, driving the support assembly to rotate. The support assembly rotates, driving the guide rod to rotate. Simultaneously, the sliding column rotates, driving the stud to rotate. The stud moves along the inner wall of the threaded sleeve through the thread, thus achieving stable descent of the guide rod during tapping. The unidirectional transmission between the electric worm and the worm gear ensures the stability of the guide rod when the electric worm stops rotating. The threaded engagement between the stud and the threaded sleeve ensures stable descent of the guide rod. The rotational speed of the electric worm changes the descent speed of the guide rod, thereby enabling the cutting of different types of threads.

[0006] Preferably, the support assembly includes a positioning seat, the top of which is fixedly connected to the fixed end of a main hydraulic rod, the movable end of which is fixedly connected to a positioning assembly, the side of the fixed end of the main hydraulic rod being connected to an oil pipe, the end of the oil pipe away from the main hydraulic rod being connected to the fixed end of an auxiliary hydraulic rod, the movable end of the auxiliary hydraulic rod being fixedly connected to a support plate, the side of which has a first groove, the bottom of the positioning seat being fixedly connected to the top of a sliding column, the fixed end of the auxiliary hydraulic rod being fixedly connected to the top of the positioning seat via a sliding groove, and the support plate being disposed on the side close to the main hydraulic rod.

[0007] Preferably, the positioning component includes a positioning base with a positioning groove on its top and a second groove on one side of the top of the positioning base. The bottom of the positioning base is fixedly connected to the movable end of the main hydraulic rod. The guide rod is placed on the top of the positioning base and contacts the second groove. The positioning groove increases the contact area between the top of the positioning base and the bottom of the guide rod, thus facilitating the stability of the guide rod. The gravity of the guide rod causes the positioning base to descend, which in turn causes the movable end of the main hydraulic rod to descend. The hydraulic oil inside the fixed end of the main hydraulic rod enters the interior of the auxiliary hydraulic rod through an oil pipe, thereby driving the auxiliary hydraulic rod to move and thus moving the support plate. The support plate contacts the side of the guide rod, thereby fixing the guide rod and supporting the side of the guide rod through the first groove, thus facilitating the stability of the guide rod. The cooperation between the main hydraulic rod and the auxiliary hydraulic rod achieves self-locking of the guide rod, thereby achieving stable support for the guide rod.

[0008] Preferably, the cutting device includes a cutting seat, a slide bar fixedly connected to the top of the cutting seat, an electric screw fixedly connected to the top side of the cutting seat, a sliding seat sleeved and slidably connected to the side of the slide bar, a cutting base fixedly connected to the top of the sliding seat, an extrusion block slidably connected to the top of the cutting base, a rotating component rotatably connected to the top center of the cutting base, the side of the extrusion block contacting the side of the rotating component, and the side of the cutting seat fixedly connected to the side of the screw sleeve.

[0009] Preferably, the rotating assembly includes a rotating base, a guide rod fixedly connected to the bottom of the rotating base, a limit plate fixedly connected to the bottom of the guide rod, a spring fixedly connected to the top of the limit plate, a sliding cylinder fixedly connected to the side of the rotating base, a cutting tool slidably connected to the inner wall of the sliding cylinder, a fastening sleeve fixedly connected to the top of the sliding cylinder, a fixing assembly threadedly connected to the top of the fastening sleeve, a rotating handle fixedly connected to the top of the rotating base, the side of the sliding cylinder contacting the side of the extrusion block, the guide rod penetrating the top of the cutting base and rotatably connected to the cutting base, and the top of the spring contacting the bottom of the cutting base.

[0010] Preferably, the fixing assembly includes a nut, a screw fixedly connected to the bottom of the nut, a rotating rod rotatably connected to the inner wall of the screw, a positioning block fixedly connected to the bottom of the rotating rod, and a positioning groove formed on the side of the positioning block. The screw is threadedly connected to the inner wall of the fastening sleeve. The positioning block contacts the side of the cutting tool through the positioning groove. The cutting tool slides along the sliding cylinder. Rotating the nut causes the screw to descend, which in turn causes the rotating rod to descend, which in turn causes the positioning block to descend. The positioning groove on the side of the positioning block contacts the side of the cutting tool, thereby positioning and pressing the cutting tool for installation. During cutting, the electric screw is activated, and its rotation moves the sliding block. This drives the sliding seat to slide via the slide bar, thereby moving the cutting base and causing the cutting tool to cut the guide rod. When the cutting tool wears, pulling the rotating handle moves the rotating base, which in turn moves the sliding cylinder, which in turn moves the guide rod, which in turn moves the limiting plate. The limiting plate causes the spring to press against the bottom of the cutting base, and rotating the rotating handle causes the rotating base to rotate, which in turn rotates the sliding cylinder. This allows for quick tool replacement. The spring force causes the rotating base to descend, allowing the side of the sliding cylinder to contact the side of the guide rod, thus enabling quick tool replacement. Simultaneous cutting by multiple cutting tools reduces the impact of single-direction forces on the guide rod.

[0011] Preferably, the support device includes a support frame, a telescopic bracket is fixedly connected to the top of the support frame, rollers are fixedly connected to the side of the telescopic bracket, and the side of the support frame is fixedly connected to the inner wall of the annular base.

[0012] This invention provides a thread processing device for oil drill pipe joints. It has the following advantages:

[0013] 1. The thread processing equipment for this oil drill pipe joint is equipped with an electric worm gear. The rotation of the electric worm gear drives the worm wheel to rotate, the rotation of the worm wheel drives the sliding column to rotate, the rotation of the sliding column drives the support assembly to rotate, and the rotation of the support assembly drives the guide rod to rotate. While the sliding column rotates, the rotation of the sliding column drives the stud to rotate. The stud moves along the inner wall of the threaded sleeve through the thread, thereby achieving stable descent of the guide rod during tapping. The unidirectional transmission between the electric worm gear and the worm wheel ensures the stability of the guide rod when the electric worm gear stops rotating. The threaded engagement between the stud and the threaded sleeve ensures stable descent of the guide rod. The rotation speed of the electric worm gear changes the descent speed of the guide rod, thereby achieving the cutting of different types of threads.

[0014] 2. The thread processing equipment for this oil drill pipe joint is equipped with a positioning base. The guide rod is placed on the top of the positioning base and contacts the second groove. The positioning groove increases the contact area between the top of the positioning base and the bottom of the guide rod, thereby increasing the contact area and facilitating the stability of the guide rod. The gravity of the guide rod causes the positioning base to descend, which in turn causes the movable end of the main hydraulic rod to descend. The hydraulic oil inside the fixed end of the main hydraulic rod enters the interior of the auxiliary hydraulic rod through the oil pipe, thereby driving the auxiliary hydraulic rod to move and thus moving the support plate. The support plate contacts the side of the guide rod, thereby fixing the guide rod. The first groove supports the side of the guide rod, thus facilitating the stability of the guide rod. The cooperation between the main hydraulic rod and the auxiliary hydraulic rod achieves self-locking of the guide rod, thereby achieving stable support for the guide rod.

[0015] 3. The thread-machining equipment for this oil drill pipe joint is equipped with a cutting tool. The cutting tool is slidably mounted along a sliding cylinder. Rotating the nut causes the screw to descend, which in turn causes the rotating rod to descend, which in turn causes the positioning block to descend. A positioning groove on the side of the positioning block contacts the side of the cutting tool, thereby positioning and pressing the cutting tool for easy installation. During cutting, the electric screw is activated, rotating to move the sliding seat, which in turn moves the sliding seat via a slide bar, thus moving the cutting base and ultimately causing the cutting tool to cut the guide rod. When the cutting tool wears out, pulling the rotary handle moves the rotary base, which in turn moves the sliding cylinder. This movement of the rotary base moves the guide rod, which in turn moves the limiting plate. The limiting plate then causes the spring to press against the bottom of the cutting base. Rotating the rotary handle further rotates the rotary base, which in turn rotates the sliding cylinder, thus enabling rapid tool replacement. The spring force also causes the rotary base to descend, bringing the side of the sliding cylinder into contact with the side of the cutting tool, facilitating quick tool replacement. Simultaneous cutting by multiple cutting tools reduces the impact of individual forces on the guide rod.

[0016] 4. The thread processing equipment for this oil drill pipe joint is equipped with rollers. During cutting, the rollers provide centripetal support to the guide rod, thereby achieving stable vertical support for the guide rod. This facilitates the guide rod to maintain a vertical descent during tapping, thus stabilizing the guide rod and ensuring tapping quality. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the thread processing equipment for the oil drill pipe joint of the present invention;

[0018] Figure 2 This is a schematic diagram of the fixing device structure of the present invention;

[0019] Figure 3 This is a schematic diagram of the supporting component structure of the present invention;

[0020] Figure 4 This is a schematic diagram of the positioning component structure of the present invention;

[0021] Figure 5 This is a schematic diagram of the cutting device structure of the present invention;

[0022] Figure 6 This is a schematic diagram of the rotating component structure of the present invention;

[0023] Figure 7 This is a schematic diagram of the fixed component structure of the present invention;

[0024] Figure 8This is a schematic diagram of the support device structure of the present invention.

[0025] In the diagram: 1. Annular base; 2. Fixing device; 3. Cutting device; 4. Support device; 201. Rotating bracket; 202. Worm gear; 203. Electric worm gear; 204. Sliding column; 205. Stud; 206. Screw sleeve; 207. Support assembly; 2071. Positioning seat; 2072. Main hydraulic rod; 2073. Positioning assembly; 2074. Oil pipe; 2075. Secondary hydraulic rod; 2076. Support plate; 2077. First groove; 20731. Positioning base; 20732. Positioning groove; 20733. Second groove; 301. Cutting seat; 302. Sliding bar; 303. Electric screw; 304. Sliding seat; 305. Cutting base; 306. Extrusion block; 307. Rotating assembly; 3071. Rotating base; 3072. Guide rod; 3073. Spring; 3074. Limiting plate; 3075. Sliding cylinder; 3076. Cutting tool; 3077. Fastening sleeve; 3078. Fixing assembly; 3079. Rotating handle; 30781. Nut; 30782. Screw; 30783. Rotating rod; 30784. Positioning block; 30785. Positioning groove; 401. Support frame; 402. Telescopic bracket; 403. Roller. Detailed Implementation

[0026] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. 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.

[0027] For the first embodiment, please refer to... Figures 1-2 The present invention provides a technical solution: a thread processing device for an oil drill pipe joint, comprising an annular base 1, a fixing device 2 fixedly connected to the bottom of the inner wall of the annular base 1, a cutting device 3 fixedly connected to the top of the annular base 1, and a support device 4 fixedly connected to the portion of the inner wall of the annular base 1 located on one side of the cutting device 3.

[0028] The ring base 1 supports the equipment, the fixing device 2 supports and rotates the guide rod, the cutting device 3 cuts the side of the guide rod, and the support device 4 provides lateral support to the guide rod, thus facilitating the guide rod to be guided in the vertical direction. The fixing device 2 drives the guide rod to descend and rotate, thereby driving the guide rod to cut threads. Different threads can be produced by adjusting the rotation speed of the fixing device 2, and different threads can be produced by adjusting the feed rate of the cutting device 3. The multi-directional support avoids deformation caused by unidirectional force on the guide rod during thread production.

[0029] The fixing device 2 includes a rotating bracket 201, a worm gear 202 rotatably connected to the top of the rotating bracket 201, an electric worm gear 203 meshing with the side of the worm gear 202, the electric worm gear 203 being rotatably connected to the top of the rotating bracket 201 via the bracket, a sliding column 204 penetrating and slidably connected to the top of the worm gear 202, a stud 205 fixedly connected to the bottom of the sliding column 204, a threaded sleeve 206 threadedly connected to the side of the stud 205, a support assembly 207 fixedly connected to the top of the sliding column 204, a side of the rotating bracket 201 fixedly connected to the side of the cutting device 3, and a side of the threaded sleeve 206 fixedly connected to the side of the cutting device 3.

[0030] The electric worm gear 203 is started, and its rotation drives the worm wheel 202 to rotate. The worm wheel 202 rotates, which in turn drives the sliding column 204 to rotate. The sliding column 204 rotates, which in turn drives the support assembly 207 to rotate. The support assembly 207 rotates, which in turn drives the guide rod to rotate. Simultaneously, the sliding column 204 rotates, which in turn drives the stud 205 to rotate. The stud 205 moves along the inner wall of the threaded sleeve 206 through its thread, thereby achieving a stable descent of the guide rod during tapping. The unidirectional transmission between the electric worm gear 203 and the worm wheel 202 ensures the stability of the guide rod when the electric worm gear 203 stops rotating. The threaded engagement between the stud 205 and the threaded sleeve 206 ensures a stable descent of the guide rod. The rotational speed of the electric worm gear 203 changes the descent speed of the guide rod, thus enabling the cutting of different types of threads.

[0031] For the second embodiment, please refer to... Figures 1-4Based on the first embodiment, the present invention provides a technical solution: the support component 207 includes a positioning seat 2071, the top of the positioning seat 2071 is fixedly connected to the fixed end of the main hydraulic rod 2072, the movable end of the main hydraulic rod 2072 is fixedly connected to the positioning component 2073, the side of the fixed end of the main hydraulic rod 2072 is connected to an oil pipe 2074, the end of the oil pipe 2074 away from the main hydraulic rod 2072 is connected to the fixed end of the auxiliary hydraulic rod 2075, the movable end of the auxiliary hydraulic rod 2075 is fixedly connected to a support plate 2076, the side of the support plate 2076 is provided with a first groove 2077, the bottom of the positioning seat 2071 is fixedly connected to the top of the sliding column 204, the fixed end of the auxiliary hydraulic rod 2075 is fixedly connected to the top of the positioning seat 2071 through a sliding groove, and the support plate 2076 is disposed on the side close to the main hydraulic rod 2072.

[0032] The positioning component 2073 includes a positioning base 20731, a positioning groove 20732 is provided on the top of the positioning base 20731, a second groove 20733 is provided on the part of the top of the positioning base 20731 located on one side of the positioning groove 20732, and the bottom of the positioning base 20731 is fixedly connected to the movable end of the main hydraulic rod 2072.

[0033] The guide rod is placed on top of the positioning base 20731 and contacts the second groove 20733. The positioning groove 20732 increases the contact area between the top of the positioning base 20731 and the bottom of the guide rod, thus increasing the contact area and facilitating the stability of the guide rod. The gravity of the guide rod causes the positioning base 20731 to descend, which in turn causes the movable end of the main hydraulic rod 2072 to descend. The hydraulic oil inside the fixed end of the main hydraulic rod 2072 enters the interior of the auxiliary hydraulic rod 2075 through the oil pipe 2074, thereby driving the auxiliary hydraulic rod 2075 to move and thus moving the support plate 2076. The support plate 2076 contacts the side of the guide rod, thereby fixing the guide rod. The first groove 2077 supports the side of the guide rod, thus facilitating the stability of the guide rod. The cooperation between the main hydraulic rod 2072 and the auxiliary hydraulic rod 2075 achieves self-locking of the guide rod, thereby achieving stable support for the guide rod.

[0034] Third embodiment, please refer to Figures 1-7Based on the second embodiment, the present invention provides a technical solution: the cutting device 3 includes a cutting seat 301, a slide bar 302 is fixedly connected to the top of the cutting seat 301, an electric screw 303 is fixedly connected to the top side of the cutting seat 301, a sliding seat 304 is sleeved and slidably connected to the side of the slide bar 302, a cutting base 305 is fixedly connected to the top of the sliding seat 304, an extrusion block 306 is slidably connected to the top of the cutting base 305, a rotating assembly 307 is rotatably connected to the top center position of the cutting base 305, the side of the extrusion block 306 contacts the side of the rotating assembly 307, and the side of the cutting seat 301 is fixedly connected to the side of the screw sleeve 206.

[0035] The rotating assembly 307 includes a rotating base 3071, a guide rod 3072 fixedly connected to the bottom of the rotating base 3071, a limit plate 3074 fixedly connected to the bottom of the guide rod 3072, a spring 3073 fixedly connected to the top of the limit plate 3074, a sliding cylinder 3075 fixedly connected to the side of the rotating base 3071, a cutting tool 3076 slidably connected to the inner wall of the sliding cylinder 3075, a fastening sleeve 3077 fixedly connected to the top of the sliding cylinder 3075, a fixing assembly 3078 threadedly connected to the top of the fastening sleeve 3077, a rotating handle 3079 fixedly connected to the top of the rotating base 3071, the side of the sliding cylinder 3075 contacting the side of the extrusion block 306, the guide rod 3072 penetrating through the top of the cutting base 305 and rotatably connected to the cutting base 305, and the top of the spring 3073 contacting the bottom of the cutting base 305.

[0036] The fixing component 3078 includes a nut 30781, a screw 30782 fixedly connected to the bottom of the nut 30781, a rotating rod 30783 rotatably connected to the inner wall of the screw 30782, a positioning block 30784 fixedly connected to the bottom of the rotating rod 30783, a positioning groove 30785 provided on the side of the positioning block 30784, the screw 30782 being threadedly connected to the inner wall of the fastening sleeve 3077, and the positioning block 30784 contacting the side of the cutting tool 3076 through the positioning groove 30785.

[0037] The cutting tool 3076 is slidably mounted along the sliding cylinder 3075. Rotating the nut 30781 causes the screw 30782 to descend, which in turn causes the rotating rod 30783 to descend, which in turn causes the positioning block 30784 to descend. The positioning groove 30785 on the side of the positioning block 30784 contacts the side of the cutting tool 3076, thereby positioning and pressing the cutting tool 3076 for easy installation. During cutting, the electric screw 303 is activated, rotating and moving the sliding seat 304. This drives the sliding seat 304 to slide via the slide bar 302, which in turn moves the cutting base 305, thus causing the cutting tool 3076 to cut the guide rod. When the cutting tool 3076 wears down... Pulling the rotary handle 3079 moves the rotary base 3071, which in turn moves the sliding cylinder 3075. This movement of the rotary base 3071 then moves the guide rod 3072, which in turn moves the limiting plate 3074. The limiting plate 3074 then causes the spring 3073 to press against the bottom of the cutting base 305. Rotating the rotary handle 3079 further rotates the rotary base 3071, which in turn rotates the sliding cylinder 3075, enabling rapid tool changing. The spring force of the spring 3073 causes the rotary base 3071 to descend, bringing the side of the sliding cylinder 3075 into contact with the side of the pressing block 306, thus facilitating rapid tool changing. Simultaneous cutting by multiple cutting tools 3076 reduces the impact of single-direction forces on the guide rod.

[0038] For the fourth embodiment, please refer to [link / reference]. Figures 1-8 Based on the third embodiment, the present invention provides a technical solution: the support device 4 includes a support frame 401, a telescopic bracket 402 is fixedly connected to the top of the support frame 401, a roller 403 is fixedly connected to the side of the telescopic bracket 402, and the side of the support frame 401 is fixedly connected to the inner wall of the annular base 1.

[0039] During cutting, the guide rod is centripetally supported by the roller 403, thereby achieving stable vertical support for the guide rod. This facilitates the guide rod to maintain a vertical descent during tapping, thus stabilizing the guide rod and ensuring tapping quality.

[0040] Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. All other embodiments obtained by those skilled in the art and related fields based on the embodiments of the present invention without inventive effort should fall within the scope of protection of the present invention. Structures, devices, and operating methods not specifically described and explained in the present invention, unless otherwise specified or limited, shall be implemented according to conventional means in the art.

Claims

1. A thread processing device for oil drill pipe joints, characterized in that: Includes an annular base (1), with a fixing device (2) fixedly connected to the bottom of the inner wall of the annular base (1), a cutting device (3) fixedly connected to the top of the annular base (1), and a support device (4) fixedly connected to the part of the inner wall of the annular base (1) located on the side of the cutting device (3). The fixing device (2) includes a rotating bracket (201), a worm gear (202) is rotatably connected to the top of the rotating bracket (201), an electric worm (203) is meshed on the side of the worm gear (202), the electric worm (203) is rotatably connected to the top of the rotating bracket (201) through the bracket, a sliding column (204) is slidably connected through the top of the worm gear (202), a stud (205) is fixedly connected to the bottom of the sliding column (204), a threaded sleeve (206) is threadedly connected to the side of the stud (205), a support assembly (207) is fixedly connected to the top of the sliding column (204), the side of the rotating bracket (201) is fixedly connected to the side of the cutting device (3), and the side of the threaded sleeve (206) is fixedly connected to the side of the cutting device (3).

2. The thread processing equipment for oil drill pipe joints according to claim 1, characterized in that: The support assembly (207) includes a positioning seat (2071), the top of which is fixedly connected to the fixed end of the main hydraulic rod (2072). The movable end of the main hydraulic rod (2072) is fixedly connected to a positioning assembly (2073). The side of the fixed end of the main hydraulic rod (2072) is connected to an oil pipe (2074), and the end of the oil pipe (2074) away from the main hydraulic rod (2072) is connected to a fixed end of the auxiliary hydraulic rod (2075). At the end, the movable end of the auxiliary hydraulic rod (2075) is fixedly connected to a support plate (2076). The side of the support plate (2076) is provided with a first groove (2077). The bottom of the positioning seat (2071) is fixedly connected to the top of the sliding column (204). The fixed end of the auxiliary hydraulic rod (2075) is fixedly connected to the top of the positioning seat (2071) through a sliding groove. The support plate (2076) is located on the side close to the main hydraulic rod (2072).

3. The thread processing equipment for oil drill pipe joints according to claim 2, characterized in that: The positioning component (2073) includes a positioning base (20731), the top of the positioning base (20731) is provided with a positioning groove (20732), the top of the positioning base (20731) located on one side of the positioning groove (20732) is provided with a second groove (20733), and the bottom of the positioning base (20731) is fixedly connected to the movable end of the main hydraulic rod (2072).

4. The thread processing equipment for oil drill pipe joints according to claim 1, characterized in that: The cutting device (3) includes a cutting seat (301), a slide bar (302) is fixedly connected to the top of the cutting seat (301), an electric screw (303) is fixedly connected to the top side of the cutting seat (301), a sliding seat (304) is sleeved and slidably connected to the side of the slide bar (302), a cutting base (305) is fixedly connected to the top of the sliding seat (304), an extrusion block (306) is slidably connected to the top of the cutting base (305), a rotating component (307) is rotatably connected to the top center of the cutting base (305), the side of the extrusion block (306) contacts the side of the rotating component (307), and the side of the cutting seat (301) is fixedly connected to the side of the screw sleeve (206).

5. The thread processing equipment for an oil drill pipe joint according to claim 4, characterized in that: The rotating assembly (307) includes a rotating base (3071), a guide rod (3072) fixedly connected to the bottom of the rotating base (3071), a limit plate (3074) fixedly connected to the bottom of the guide rod (3072), a spring (3073) fixedly connected to the top of the limit plate (3074), a sliding cylinder (3075) fixedly connected to the side of the rotating base (3071), a cutting tool (3076) slidably connected to the inner wall of the sliding cylinder (3075), a fastening sleeve (3077) fixedly connected to the top of the sliding cylinder (3075), a fixing assembly (3078) threadedly connected to the top of the fastening sleeve (3077), and a rotating handle (3079) fixedly connected to the top of the rotating base (3071).

6. The thread processing equipment for an oil drill pipe joint according to claim 5, characterized in that: The side of the sliding cylinder (3075) contacts the side of the extrusion block (306), the guide rod (3072) passes through the top of the cutting base (305) and is rotatably connected to the cutting base (305), and the top of the spring (3073) contacts the bottom of the cutting base (305).

7. The thread processing equipment for oil drill pipe joints according to claim 5, characterized in that: The fixing component (3078) includes a nut (30781), a screw (30782) is fixedly connected to the bottom of the nut (30781), a rotating rod (30783) is rotatably connected to the inner wall of the screw (30782), a positioning block (30784) is fixedly connected to the bottom of the rotating rod (30783), and a positioning groove (30785) is provided on the side of the positioning block (30784).

8. The thread processing equipment for an oil drill pipe joint according to claim 7, characterized in that: The screw (30782) is threaded to the inner wall of the fastening sleeve (3077), and the positioning block (30784) contacts the side of the cutting tool (3076) through the positioning groove (30785).

9. The thread processing equipment for oil drill pipe joints according to claim 1, characterized in that: The support device (4) includes a support frame (401), a telescopic bracket (402) is fixedly connected to the top of the support frame (401), a roller (403) is fixedly connected to the side of the telescopic bracket (402), and the side of the support frame (401) is fixedly connected to the inner wall of the annular base (1).

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