Clamping device for oil casing coupling machining

Abstract

The utility model relates to the field of oil casing machining, in particular to a clamping device for oil casing coupling machining, which comprises a supporting plate, a mounting table, a clamping seat, a limiting piece, a rotating plate, a clamping piece, a driving rod and a fixing plate, the supporting plate is horizontally arranged, the mounting table is arranged on the upper plate surface of the supporting plate, the clamping seat is arranged on the mounting table, and the limiting piece is arranged on the clamping seat. The limiting part is fixedly connected to the surface of the clamping base, the rotating plate is rotationally arranged on the surface of the clamping part, the clamping part is hinged to the plate face of the rotating plate, one end of the driving rod is fixedly connected to the peripheral wall of the clamping part, the fixing plate is arranged on the side, away from the rotating plate, of the clamping part and hinged to the clamping part, and the fixing plate is fixedly connected with the rotating plate. And a second sliding groove is formed in the surface, away from the clamping base, of the limiting piece, the end, away from the clamping piece, of the driving rod is slidably arranged in the second sliding groove, and the effects that the oil casing coupling is clamped and fixed, a worker does not need to hold the oil casing coupling by hand for machining, and safety is improved are achieved.

Description

Technical Field

[0001] The present application relates to the field of oil casing processing, and in particular to a clamping device for processing oil casing couplings. Background Art

[0002] At present, an oil casing is composed of a steel pipe with external threads processed and a coupling with internal threads processed. The oil casing is used to support the wellbore of an oil well or a gas well, and can ensure the normal use of the entire oil well during and after the drilling process. The oil casing is an important consumable for oil exploration and development.

[0003] In the existing oil casing processing, burrs generated during the production of oil casing couplings are ground. A rotating grinding tool is used to grind the starting thread of the coupling to remove burrs.

[0004] The above-mentioned prior art solutions have the following defects: When the processing device grinds and removes burrs from the oil casing coupling, it is necessary for the staff to hold the oil casing coupling by hand for grinding. The grinding tool of the processing device is likely to hurt the staff's hand, and the safety is low. Summary of the Utility Model

[0005] In order to clamp and fix the oil casing coupling of the present application, avoid processing by hand by the staff, and improve safety, a clamping device for processing oil casing couplings is provided.

[0006] The above technical object of the present application is achieved by the following technical solutions:

[0007] A clamping device for processing oil casing couplings includes a support plate, a mounting table, a clamping seat, a limiting member, a rotating plate, a clamping member, a driving rod, and a fixing plate. The support plate is horizontally arranged. The mounting table is arranged on the upper surface of the support plate. The clamping seat is arranged on the mounting table. The limiting member is fixedly connected to the surface of the clamping seat. The rotating plate is rotatably arranged on the surface of the clamping member. The clamping member is hinged to the surface of the rotating plate. One end of the driving rod is fixedly connected to the peripheral wall of the clamping member. The fixing plate is arranged on the side of the clamping member away from the rotating plate and is hinged to the clamping member. The fixing plate is fixedly connected to the rotating plate. A second sliding groove is formed on the surface of the limiting member away from the clamping seat. The end of the driving rod away from the clamping member is slidably arranged in the second sliding groove.

[0008] By adopting the above technical solution, by providing a support plate, a mounting table, a clamping seat, a limiting member, a rotating plate, a clamping member, a driving rod and a fixing plate, the limiting member can fix the rotating plate, the clamping member and the fixing plate. The end of the driving rod slides in the second sliding groove. During the process of rotating the rotating plate and the fixing plate, since the hinge joints of the clamping member with the fixing plate and the rotating plate deviate from the center of the surface of the clamping member, as the end of the sliding member slides, the clamping member can be driven to move towards the axis of the rotating plate, and the clamping member can clamp and fix the oil casing coupling, facilitating subsequent processing of the oil casing coupling, avoiding workers holding the oil casing coupling for processing, improving safety and work efficiency.

[0009] Optionally, a receiving groove is formed on the surface of the limiting member close to the rotating plate, and the rotating plate is adapted to the receiving groove and slidably inserted into the receiving groove.

[0010] By adopting the above technical solution, by forming the receiving groove, the receiving groove and the limiting member can fix the rotating plate, preventing it from disengaging from the clamping seat during rotation.

[0011] Optionally, a receiving hole is formed on the surface of the mounting table, and the receiving hole is coaxially arranged with the clamping seat, the rotating plate and the fixing plate.

[0012] By adopting the above technical solution, by forming the receiving hole, the oil casing coupling is placed in the fixing plate, the rotating plate, the clamping seat and the receiving hole, and the oil casing coupling is clamped and fixed, facilitating subsequent grinding work.

[0013] Optionally, a limiting sliding hole is formed on the surface of the rotating plate, and a limiting sliding block is arranged on the surface of the clamping seat. The limiting sliding block is adapted to the limiting sliding hole and slidably arranged in the limiting sliding hole.

[0014] By adopting the above technical solution, by setting the limiting sliding block to slide in the limiting sliding hole, the rotation angle of the rotating plate and the fixing plate can be prevented from being too large, so as to prevent the driving rod from disengaging from the second sliding groove.

[0015] Optionally, the clamping device further includes an operating rod, the operating rod is sleeved on the mounting table, and the end of the operating rod is fixedly connected to the fixing plate.

[0016] By adopting the above technical solution, by providing the operating rod, the fixing plate and the rotating plate can be rotated to clamp and fix the oil casing coupling. The operating rod can extend the turning force arm, avoiding workers rotating the fixing plate for clamping and fixing work, and improving work efficiency.

[0017] Optionally, fixing grooves are formed on the surface of the mounting table, fixing columns are fixedly connected to the peripheral wall of the operating rod, the fixing columns are slidably inserted into the fixing grooves, a receiving cavity is formed in the peripheral wall of the operating rod and extends into the fixing columns, a fixing member is arranged in the receiving cavity, the fixing member slidably penetrates into the fixing columns, and the end face of the fixing member abuts against the groove wall of the fixing groove.

[0018] By adopting the above technical solution, by arranging the fixing member, the end face of the fixing member abuts against the groove wall of the fixing groove, the positions of the fixing columns and the operating rod are fixed, so that the state of the fixing plate is fixed, and the petroleum casing coupling is continuously clamped, avoiding the rotation of the fixing plate and the loosening of the petroleum casing during the processing of the petroleum casing, and reducing the processing efficiency.

[0019] Optionally, fixing bolts are arranged on the operating rod, the fixing bolts are inserted into the receiving cavity, and the peripheral wall of the end of the fixing bolts abuts against the end face of the fixing member.

[0020] By adopting the above technical solution, by arranging the fixing bolts, the fixing bolts rotate to squeeze the fixing member, so that the fixing member moves out of the receiving cavity, the position of the operating rod is fixed, and the working efficiency is improved and it is easy to operate.

[0021] Optionally, the end of the fixing bolt is processed into a conical shape, the end face of the fixing member is processed to form an arc-shaped inclined surface, and the arc-shaped inclined surface abuts against the peripheral wall of the conical end of the fixing bolt.

[0022] By adopting the above technical solution, by processing the arc-shaped inclined surface, it can better fit the peripheral wall of the end of the fixing bolt, improve the utilization rate of the extrusion force received by the fixing member, and improve the efficiency.

[0023] Optionally, the clamping device further includes a processing component, the processing component is slidably arranged on the upper plate surface of the support plate, the processing component includes a sliding seat, a motor and a turntable, the sliding seat is slidably arranged on the upper plate surface of the support plate, the motor is arranged on the upper part of the sliding seat, the turntable is coaxially fixedly connected to the end of the output shaft of the motor, and a grinding tool is arranged on the peripheral wall of the turntable.

[0024] By adopting the above technical solution, by arranging the sliding seat, the motor and the turntable, the sliding seat slides on the plate surface of the support plate, the turntable can be moved close to the clamped petroleum casing coupling, and the motor drives the turntable to rotate, so as to grind and process the petroleum casing coupling, improving the yield rate and the subsequent assembly quality.

[0025] Optionally, a first sliding groove is formed on the upper plate surface of the support plate, the sliding seat includes a first strip-shaped plate, the lower plate surface of the first strip-shaped plate abuts against the upper plate surface of the support plate, and both ends of the first strip-shaped plate are bent downward and inserted into the first sliding groove.

[0026] By adopting the above technical solution, by providing a sliding groove, it is possible to prevent the sliding seat from deviating from the sliding track during the sliding process, reducing the grinding efficiency.

[0027] In summary, the present application has the following technical effects:

[0028] 1. By providing a clamping seat, a limiting member, a rotating plate, a clamping member, a driving rod, and a fixing plate, the clamping member can clamp and fix the petroleum casing coupling, facilitating subsequent processing of the petroleum casing coupling, preventing workers from holding the petroleum casing coupling for processing, improving safety, and enhancing work efficiency;

[0029] 2. By providing an operating rod, the fixing plate and the rotating plate can be rotated to clamp and fix the petroleum casing coupling. The operating rod can extend the turning force arm, preventing workers from rotating the fixing plate for clamping and fixing work, and improving work efficiency;

[0030] 3. By providing a processing component, the sliding seat slides on the surface of the support plate, enabling the turntable to approach the clamped petroleum casing coupling. The motor drives the turntable to rotate, thereby grinding the petroleum casing coupling, improving the yield rate and subsequent assembly quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 is the external shape structure diagram of the present application;

[0032] Figure 2 is the prominent structure diagram of the clamping component of the present application;

[0033] Figure 3 is the prominent structure diagram of the operating rod and the fixing column after the present application is opened.

[0034] Description of the reference numerals: 1, base; 11, support plate; 111, first sliding groove; 112, sliding rod; 12, support leg; 2, processing component; 21, sliding seat; 211, first strip-shaped plate; 212, second strip-shaped plate; 213, third strip-shaped plate; 22, motor; 23, turntable; 3, clamping component; 31, mounting table; 311, receiving hole; 312, fixing groove; 32, clamping seat; 321, limiting slider; 33, limiting member; 331, receiving groove; 332, second sliding groove; 34, rotating plate; 341, limiting sliding hole; 35, clamping member; 36, hinge column; 37, driving rod; 38, fixing plate; 381, fixing leg; 39, operating rod; 391, fixing column; 392, receiving cavity; 393, fixing member; 3931, arc-shaped inclined surface; 394, spring; 395, fixing bolt. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0035] The following further describes the present application in detail with reference to the accompanying drawings.

[0036] An embodiment of the present application discloses a clamping device for processing oil casing couplings. Refer to Figure 1 , the clamping device includes a base 1, a processing component 2 and a clamping component 3. The base 1 can provide support for the processing component 2 and the clamping component 3, facilitating the processing component 2 to process the oil casing coupling. The processing component 2 can perform deburring processing on the oil casing coupling to improve the later assembly quality. The clamping component 3 can clamp and fix the oil casing coupling, avoiding the need for workers to hold it by hand during the processing of the oil casing coupling and improving safety.

[0037] Refer to Figure 1 , the base 1 includes a support plate 11 and support legs 12. The support plate 11 is horizontally placed. The support plate 11 is a strip-shaped plate made of metal. The support legs 12 are vertically arranged on the lower plate surface of the support plate 11. There are four support legs 12. The length directions of the four support legs 12 are parallel to each other and spaced apart. The four support legs 12 are distributed in a rectangle on the lower plate surface of the support plate 11.

[0038] Refer to Figure 1 , two first sliding grooves 111 parallel to each other in the length direction are opened on the upper plate surface of the support plate 11. The two first sliding grooves 111 are spaced apart. The length direction of the first sliding groove 111 is parallel to the length direction of the support plate 11. A sliding rod 112 is arranged in the first sliding groove 111. The length direction of the sliding rod 112 is parallel to the length direction of the first sliding groove 111. Both ends of the sliding rod 112 are fixedly connected to the two end walls of the first sliding groove 111. The peripheral wall of the sliding rod 112 is spaced from the three groove walls of the first sliding groove 111.

[0039] Refer to Figure 1 , the processing component 2 is arranged on the upper plate surface of the support plate 11. The processing component 2 includes a sliding seat 21. The sliding seat 21 includes a first strip-shaped plate 211, a second strip-shaped plate 212 and a third strip-shaped plate 213. The first strip-shaped plate 211 is horizontally arranged. The length direction of the first strip-shaped plate 211 is perpendicular to the length direction of the support plate 11. The lower plate surface of the first strip-shaped plate 211 is slidably attached to the upper plate surface of the support plate 11. Both ends of the first strip-shaped plate 211 are bent downward and slidably inserted into the first sliding groove 111, and the end of the first strip-shaped plate 211 bent downward is slidably sleeved on the sliding rod 112.

[0040] Refer to Figure 1 , the second strip-shaped plate 212 is vertically arranged on the upper plate surface of the first strip-shaped plate 211. The side wall of the second strip-shaped plate 212 is flush with the side wall of the first strip-shaped plate 211. The lower end surface of the second strip-shaped plate 212 is fixedly connected to the middle of the upper plate surface of the first strip-shaped plate 211. The third strip-shaped plate 213 is horizontally arranged on the upper part of the second strip-shaped plate 212. The lower plate surface of the third strip-shaped plate 213 is fixedly connected to the upper end surface of the second strip-shaped plate 212. The plate surface of the third strip-shaped plate 213 is parallel to the plate surface of the first strip-shaped plate 211.

[0041] Refer to Figure 1 , a motor 22 is arranged on the upper plate surface of the third strip plate 213. The outer shell of the motor 22 is fixedly connected to the upper plate surface of the third strip plate 213. The end of the output shaft of the motor 22 is fixedly connected with a turntable 23. The axis of the output shaft of the motor 22 is parallel to the length direction of the support plate 11. The turntable 23 is coaxially arranged with the output shaft of the motor 22. A grinding tool is arranged on the peripheral wall of the turntable 23.

[0042] Combined with Figure 1 and Figure 2 , the clamping assembly 3 includes a mounting table 31. The mounting table 31 is arranged on the upper plate surface of the support plate 11. The mounting table 31 is a square column. The end surface of the mounting table 31 is fixedly connected to the upper plate surface of the support plate 11. The length direction of the mounting table 31 is perpendicular to the length direction of the support plate 11, and the length direction of the slide rail is perpendicular to the surface of the mounting table 31. The mounting table 31 and the processing assembly 2 are located at both ends of the length direction of the upper plate surface of the support plate 11. A circular receiving hole 311 is formed on the surface of the mounting table 31, and the receiving hole 311 communicates with two opposite surfaces of the mounting table 31.

[0043] Combined with Figure 1 and Figure 2 , the clamping assembly 3 further includes two groups of rotating clamping structures. The two groups of rotating clamping structures are respectively arranged on two opposite surfaces of the mounting table 31. One group of rotating clamping structures includes a clamping seat 32, a limiting member 33 and a rotating plate 34. The clamping seat 32 is arranged on the surface of the mounting table 31. The clamping seat 32 is a ring-shaped metal plate. The clamping seat 32 is fixedly connected to the mounting table 31 by bolts. The clamping seat 32 is coaxially arranged with the receiving hole 311. The limiting member 33 is fixedly connected to the surface of the clamping seat 32 facing away from the mounting table 31. The limiting member 33 is a square block. There are three limiting members 33, and the three limiting members 33 are equally angularly distributed on the surface of the clamping seat 32 with the axis of the clamping seat 32 as the center.

[0044] Combined with Figure 1 and Figure 2 , a receiving groove 331 is formed on the side wall of the limiting member 33 close to the axis of the clamping seat 32, and the receiving groove 331 has an opening on the surface of the limiting member 33 fitting the clamping seat 32. The rotating plate 34 is rotatably arranged between the three limiting members 33. The rotating plate 34 is a ring-shaped metal plate. The axis of the rotating plate 34 coincides with the axis of the clamping seat 32. The plate surface of the rotating plate 34 is in contact with the surface of the clamping seat 32. The rotating plate 34 is adapted to the receiving groove 331 and the rotating plate 34 is slidably arranged in the receiving groove 331. The peripheral wall of the rotating plate 34 is in contact with the bottom of the receiving groove 331. The limiting member 33 and the receiving groove 331 formed on the limiting member 33 can prevent the rotating plate 34 from separating from the clamping seat 32 during rotation.

[0045] Combined with Figure 1 and Figure 2, the rotating clamping structure further includes a clamping member 35, a hinge post 36, and a fixing plate 38. The clamping member 35 is disposed on the surface of the rotating plate 34 facing away from the clamping seat 32. The clamping member 35 is a disc, and the surface of the clamping member 35 is parallel to the surface of the rotating plate 34. A driving rod 37 is fixedly connected to the peripheral wall of the clamping member 35, and the length direction of the driving rod 37 is perpendicular to the tangent plane of the peripheral wall of the clamping member 35. The hinge post 36 penetrates into the clamping member 35 and is fixedly connected thereto. The length direction of the hinge post 36 is perpendicular to the surface of the clamping member 35. The position where the hinge post 36 penetrates into the surface of the clamping member 35 deviates from the center of the disc surface and is close to the driving rod 37. The hinge post 36 penetrates into the rotating plate 34 and is hinged to the rotating plate 34. There are three clamping members 35 and hinge posts 36, and the three clamping members 35 and hinge posts 36 are equally angularly distributed around the axis of the rotating plate 34 on the surface of the rotating plate 34.

[0046] Combined with Figure 1 and Figure 2 , the fixing plate 38 is disposed on the side of the clamping member 35 facing away from the rotating plate 34. The end of the hinge post 36 away from the rotating plate 34 penetrates into the fixing plate 38 and is hinged to the fixing plate 38. The fixing plate 38 is an annular metal plate, and the axis of the fixing plate 38 coincides with the axis of the rotating plate 34. At the edge of the surface of the fixing plate 38 opposite to the rotating plate 34, fixing legs 381 are integrally formed. There are three fixing legs 381, and the three fixing legs 381 are equally angularly distributed around the axis of the fixing plate 38 on the surface of the fixing plate 38. The fixing legs 381 are spaced from the clamping member 35, and the end surface of the fixing leg 381 facing away from the fixing plate 38 is fixedly connected to the surface of the rotating plate 34.

[0047] Combined with Figure 1 and Figure 2 , a second sliding groove 332 is formed on the surface of the limiting member 33 facing away from the clamping seat 32. The length direction of the second sliding groove 332 is perpendicular to the axis of the clamping seat 32, and the second sliding grooves 332 on the three limiting members 33 are all radially inwardly opened. At the end of the driving rod 37 away from the clamping member 35, a sliding member (not shown in the figure) is fixedly connected to the side wall, and the sliding member is adapted to the second sliding groove 332 and is slidably disposed in the second sliding groove 332.

[0048] Combined with Figure 1 and Figure 2 , a limiting sliding hole 341 is formed on the rotating plate 34. The limiting sliding hole 341 is located between two adjacent fixing legs 381. The limiting sliding hole 341 communicates with the surface of the rotating plate 34. The limiting sliding hole 341 is curvedly formed, and the center of the bending arc of the limiting sliding hole 341 coincides with the axis of the rotating plate 34. On the surface of the clamping seat 32 facing away from the mounting table 31, a limiting sliding block 321 is integrally formed. The limiting sliding block 321 is adapted to the limiting sliding groove and is slidably disposed in the limiting sliding groove.

[0049] Combined with Figure 1 and Figure 2The clamping assembly 3 further includes an operating rod 39, which is disposed on the mounting platform 31. The operating rod 39 is U-shaped and sleeved on the mounting platform 31. The two ends of the operating rod 39 are respectively fixedly connected to the side walls of the fixed legs 381 in the two sets of rotating clamping structures. The operating rod 39 enables the staff to control the two rotating clamping structures at the same time. The two opposite surfaces of the mounting platform 31 are provided with arc-shaped fixed grooves 312, which are located above the rotating clamping structure, and the arc center of the fixed groove 312 coincides with the axis of the receiving hole 311.

[0050] Combination Figure 1 and Figure 2 The rotating plate 34 and the fixed plate 38 can be rotated by operating the rod 39. Since the sliding piece at the end of the driving rod 37 slides in the second sliding groove 332 and the hinge column 36 deviates from the center of the disk of the clamping piece 35, during the rotation of the rotating plate 34, as the sliding piece slides, the clamping piece 35 can move toward the axis of the rotating plate 34. The three clamping pieces 35 can clamp and fix the oil casing coupling inserted in the fixed plate 38, the rotating plate 34, the clamping seat 32 and the accommodating hole 311, which is convenient for subsequent processing of the oil casing coupling, avoids the staff from holding the oil casing coupling for processing, and improves safety.

[0051] Combination Figure 2 and Figure 3 A fixing column 391 is fixedly connected to the circumferential wall opposite to the operating rod 39, and the fixing column 391 is adapted to the fixing groove 312 and is slidably arranged in the fixing groove 312. A accommodating cavity 392 is opened on the circumferential wall of the operating rod 39 away from the fixing column 391 and into the fixing column 391. The accommodating cavity 392 is provided with an opening on the circumferential wall of the operating rod 39 away from the fixing column 391. Mounting holes (not shown in the figure) are opened on the circumferential walls on both sides of the fixing column 391 that are in contact with the groove wall of the fixing groove 312, and the mounting holes connect the outer wall of the fixing column 391 and the accommodating cavity 392.

[0052] Combination Figure 2 and Figure 3 The clamping assembly 3 also includes a fixing member 393, a spring 394 and a fixing bolt 395. The fixing member 393 is arranged in the accommodating cavity 392. The fixing member 393 is a square column. There are two fixing members 393. The ends of the two fixing members 393 are inserted from the outside of the fixing member 393 into the mounting hole and are located in the accommodating cavity 392. The surface of the end of the fixing member 393 located outside the accommodating cavity 392 is processed into a protruding arc surface and fits with the wall of the fixing groove 312. The spring 394 is arranged in the accommodating cavity 392. There are two springs 394. The two springs 394 are respectively arranged on both sides of the fixing member 393, and the two ends of the spring 394 are respectively fixed to the side walls of the ends of the two fixing members 393. The spring 394 can make the two fixing members 393 close to each other.

[0053] CombinationFigure 2 and Figure 3 , a fixing bolt 395 is arranged on the operating rod 39. Threads are machined on the cavity wall at the opening of the accommodating cavity 392. The fixing bolt 395 is threadedly inserted into the accommodating cavity 392. The end of the fixing bolt 395 is processed into a conical shape. The end faces of the two fixing members 393 located inside the accommodating cavity 392 are both processed into arc-shaped inclined surfaces 3931. The arc-shaped inclined surfaces 3931 of the two fixing members 393 can be combined to form a conical flaring with the opening facing the same direction as the opening of the accommodating cavity 392. The peripheral wall of the end of the fixing bolt 395 can be attached to the arc-shaped inclined surface 3931.

[0054] Combined Figure 2 and Figure 3 , rotate the fixing bolt 395 in the direction close to the fixing column 391. The end of the fixing bolt 395 presses the arc-shaped inclined surface 3931, causing the two fixing members 393 to move away from each other, making the surface of the fixing member 393 abut against the wall of the fixing groove 312, fixing the position of the operating rod 39, and thus fixing the state of the rotating clamping structure.

[0055] This specific embodiment is only an interpretation of the present application and is not a limitation of the present application. After reading this specification, those skilled in the art can make modifications to this embodiment that do not contribute creatively as needed, but as long as it is within the scope of the claims of the present application, it is protected by the patent law.

Claims

1. A clamping device for processing an oil casing coupling, characterized in that: The clamping device comprises a support plate (11), a mounting platform (31), a clamping seat (32), a limiting member (33), a rotating plate (34), a clamping member (35), a driving rod (37) and a fixed plate (38), wherein the support plate (11) is horizontally arranged, the mounting platform (31) is arranged on the upper plate surface of the support plate (11), the clamping seat (32) is arranged on the mounting platform (31), the limiting member (33) is fixedly connected to the surface of the clamping seat (32), the rotating plate (34) is rotatably arranged on the surface of the clamping member (35), and the fixing plate (38) is provided. The clamping member (35) is hinged on the surface of the rotating plate (34), one end of the driving rod (37) is fixedly connected to the peripheral wall of the clamping member (35), the fixed plate (38) is arranged on the side of the clamping member (35) away from the rotating plate (34) and is hinged to the clamping member (35), the fixed plate (38) is fixedly connected to the rotating plate (34), a second sliding groove (332) is provided on the surface of the limiting member (33) away from the clamping seat (32), and the end of the driving rod (37) away from the clamping member (35) is slidably arranged in the second sliding groove (332).

2. The clamping device for processing an oil casing coupling according to claim 1, characterized in that: A receiving groove (331) is provided on the surface of the limiting member (33) close to the rotating plate (34), and the rotating plate (34) is adapted to the receiving groove (331) and is slidably inserted in the receiving groove (331).

3. The clamping device for processing an oil casing coupling according to claim 2, characterized in that: A receiving hole (311) is provided on the surface of the mounting platform (31), and the receiving hole (311) is coaxially arranged with the clamping seat (32), the rotating plate (34) and the fixing plate (38).

4. A clamping device for processing an oil casing coupling according to claim 3, characterized in that: A limit sliding hole (341) is provided on the surface of the rotating plate (34), a limit sliding block (321) is provided on the surface of the clamping seat (32), and the limit sliding block (321) is adapted to the limit sliding hole (341) and is slidably disposed in the limit sliding hole (341).

5. The clamping device for processing an oil casing coupling according to claim 4, characterized in that: The clamping device also includes an operating rod (39), the operating rod (39) is sleeved on the mounting platform (31), and the end of the operating rod (39) is fixedly connected to the fixing plate (38).

6. The clamping device for processing an oil casing coupling according to claim 5, characterized in that: A fixing groove (312) is provided on the surface of the mounting platform (31), a fixing column (391) is fixedly connected to the peripheral wall of the operating rod (39), the fixing column (391) is slidably inserted into the fixing groove (312), a receiving cavity (392) is provided on the peripheral wall of the operating rod (39) toward the fixing column (391), a fixing member (393) is provided in the receiving cavity (392), the fixing member (393) is slidably inserted into the fixing column (391), and the end face of the fixing member (393) is in contact with the wall of the fixing groove (312).

7. The clamping device for processing oil casing couplings according to claim 6, characterized in that: The operating rod (39) is provided with a fixing bolt (395), the fixing bolt (395) is inserted into the accommodating cavity (392), and the peripheral wall of the end of the fixing bolt (395) is in contact with the end surface of the fixing member (393).

8. A clamping device for processing oil casing couplings according to claim 7, characterized in that: The end of the fixing bolt (395) is processed into a conical shape, and the end surface of the fixing member (393) is processed to form an arc-shaped inclined surface (3931), and the arc-shaped inclined surface (3931) is in contact with the peripheral wall of the conical end of the fixing bolt (395).

9. The clamping device for processing an oil casing coupling according to claim 1, characterized in that: The clamping device further includes a processing component (2), the processing component (2) is slidably arranged on the upper plate surface of the support plate (11), the processing component (2) includes a sliding seat (21), a motor (22) and a turntable (23), the sliding seat (21) is slidably arranged on the upper plate surface of the support plate (11), the motor (22) is arranged on the upper part of the sliding seat (21), the turntable (23) is coaxially and fixedly connected to the end of the output shaft of the motor (22), and a grinding tool is arranged on the peripheral wall of the turntable (23).

10. A clamping device for processing oil casing couplings according to claim 9, characterized in that: A first sliding groove (111) is formed on the upper plate surface of the support plate (11), the sliding seat (21) includes a first strip-shaped plate (211), the lower plate surface of the first strip-shaped plate (211) is attached to the upper plate surface of the support plate (11), and both ends of the first strip-shaped plate (211) are bent downward and inserted into the first sliding groove (111).

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