Hole opening device for oil extraction pipe machining

Abstract

The utility model relates to the technical field of tapping equipment, and discloses an oil extraction pipe machining tapping device which comprises a vertical plate, a horizontal plate, a horizontal plate, a horizontal plate and a horizontal plate, and a sliding groove is formed in the outer surface of the vertical plate; the driving mechanism is arranged on the outer surface of the vertical plate; and the fixing mechanism is arranged in the vertical plate. According to the machining and tapping device for the oil extraction pipe, due to the fact that a circular ring is movably connected with the interior of the outer surface of a vertical plate in a sleeved mode, a gear ring can only drive the circular ring to rotate along the interior of the outer surface of the vertical plate, when the gear ring rotates, four moving rods are driven to move through four arc-shaped blocks, and four circular shafts are limited through four sliding grooves; at the moment, the four moving rods drive the four clamping blocks to move inwards through the four circular shafts, when the four clamping blocks make contact with the oil extraction pipe in the moving process, clamping and fixing operation can be conducted on the oil extraction pipe, then the function of stably fixing the oil extraction pipes of different sizes and specifications is achieved, and when the equipment meets the requirements for different pipe diameters, the equipment is convenient to use. Adjustment can be carried out quickly and accurately.

Description

TECHNICAL FIELD

[0001] The utility model relates to a trepanning equipment technical field more specifically, the utility model relates to a kind of oil extraction pipe processing trepanning device. BACKGROUND

[0002] In the oil exploitation industry, oil extraction pipe as the key component of conveying oil, its processing quality is directly related to the efficiency and safety of oil exploitation. Oil extraction pipe in the use process, often needs to be set up various specifications and quantities of holes on the pipe body according to different exploitation needs.

[0003] At present, the traditional oil extraction pipe trepanning mode mainly includes manual drilling and mechanical trepanning. Although the existing mechanical trepanning equipment improves the trepanning efficiency to some extent, the fixing mode of the oil extraction pipe lacks flexibility, and it is difficult to adapt to oil extraction pipes of different diameters. Most fixing devices are designed for a specific pipe diameter range. When encountering oil extraction pipes with large changes in pipe diameter, stable and reliable fixing effect cannot be provided. For oil extraction pipes with slightly larger or smaller diameters, either the pipe body surface is damaged due to over-tightening, affecting the service life of the oil extraction pipe; or the oil extraction pipe is prone to shaking or even displacement during trepanning. Once the oil extraction pipe is displaced during trepanning, the drill bit will deviate from the predetermined trepanning position, resulting in inaccurate trepanning position and difficult to meet the standard requirements of hole diameter, which seriously affects the processing quality of the oil extraction pipe. Moreover, to adapt to different pipe diameters, the fixing device needs to be frequently replaced, which is time-consuming and complicated to operate, greatly reducing the production efficiency. With the continuous development of oil exploitation technology, the specifications of oil extraction pipes used are becoming more and more diversified, which urgently needs to develop a trepanning device suitable for various types of oil extraction pipes. SUMMARY

[0004] In order to overcome the shortcomings of the prior art, the utility model provides an oil extraction pipe processing trepanning device, which has the advantages of being able to fix different sizes of oil extraction pipes.

[0005] To achieve the above purpose, the utility model provides the following technical scheme: an oil extraction pipe processing trepanning device, comprising:

[0006] A vertical plate is provided with a sliding groove on its outer surface.

[0007] A driving mechanism is arranged on the outer surface of the vertical plate.

[0008] A fixing mechanism is arranged inside the vertical plate.

[0009] The fixed mechanism comprises a fixed shaft, the outer surface of the fixed shaft is movably sleeved with a gear, the outer surface of the gear is movably connected with a tooth ring, the outer surface of the tooth ring is fixedly installed with a circular ring, the outer surface of the circular ring is movably sleeved with the inner surface of the vertical plate, the inner surface of the tooth ring is fixedly installed with an arc-shaped block, the arc-shaped block is movably sleeved with a moving rod, the inner surface of the other end of the moving rod is movably sleeved with a circular shaft, the outer surface of the circular shaft is movably connected with the inner surface of the sliding groove, the other end of the circular shaft is fixedly installed with a clamping block, and the outer surface of the clamping block is movably sleeved with the inner surface of the vertical plate.

[0010] As a preferred technical scheme of the utility model, the driving mechanism comprises:

[0011] The first motor is fixedly connected with the outer surface of the vertical plate at the top end, and a rotating shaft is fixedly sleeved with the other end of the output shaft of the first motor;

[0012] The bottom end of the threaded block is fixedly connected with the top end of the rotating shaft, the outer surface of the threaded block is threadedly sleeved with a tooth rod, and the outer surface of the tooth rod is movably connected with the outer surface of the gear.

[0013] As a preferred technical scheme of the utility model, the front and rear sides of the bottom end of the vertical plate are fixedly installed with sliding blocks, and the inner surface of the sliding block is movably connected with a guide rail.

[0014] As a preferred technical scheme of the utility model, the outer surface of the guide rail is fixedly installed with a supporting block, a second motor is fixedly installed on the supporting block, and a bidirectional screw rod is fixedly sleeved with the other end of the output shaft of the second motor.

[0015] As a preferred technical scheme of the utility model, the outer surface of the bidirectional screw rod is threadedly sleeved with a moving block, and the top end of the moving block is fixedly connected with the bottom end of the vertical plate.

[0016] As a preferred technical scheme of the utility model, the back surface of the guide rail is fixedly installed with a support, a gas cylinder is fixedly installed at the top end of the support, and a connecting block is fixedly installed at the top end of the gas cylinder.

[0017] As a preferred technical scheme of the utility model, a third motor is fixedly installed at the top end of the connecting block, a rotating shaft is fixedly sleeved with the other end of the output shaft of the third motor, and a circular plate is fixedly sleeved with the bottom end of the outer surface of the rotating shaft.

[0018] As a preferred technical scheme of the utility model, a connecting rod is fixedly installed at the bottom end of the circular plate, and a limiting block is fixedly installed at the bottom end of the connecting rod.

[0019] As a preferred technical scheme of the utility model, the inside of the top end of the limiting block movably sheaths a lead screw, the top end of the lead screw fixedly installs a twisting block, the outer surface of the lead screw movably sheaths a movable block, the inside of the twisting block hingedly connects a movable rod, the other end of the movable rod hingedly connects a hinged block, the outer surface of the hinged block and the inside of the limiting block are in sliding connection.

[0020] As a preferred technical scheme of the utility model, the outer surface of the hinged block fixedly installs a clamping block, the inside of the clamping block movably connects a drill bit.

[0021] Compared with the prior art, the utility model has the advantages that:

[0022] 1、This kind of oil extraction pipe processing trepanning device, because the inside of the outer surface of the circular ring and the vertical plate movably sheaths, so that the gear ring can only drive the circular ring to rotate along the inside of the outer surface of the vertical plate, when the gear ring rotates, four arc blocks will drive four moving rods to move, because the four sliding grooves limit the four round shafts, at this time, four moving rods will drive four clamping blocks to move inwards, when four clamping blocks contact with the oil extraction pipe during the movement, it can clamp and fix the oil extraction pipe, thereby realizing the stable fixing function of different size specifications of oil extraction pipe, so that the equipment can be quickly and accurately adjusted when facing different pipe diameter requirements.

[0023] 2、This kind of oil extraction pipe processing trepanning device, because the inside of the movable block of the lead screw and the movable block is threaded, when the lead screw rotates, it will drive the movable block downwards, at this time, the movable block will drive four hinged blocks to move through four movable rods, because the limiting block limits the hinged block, at this time, four hinged blocks will drive four clamping blocks to move outwards, at this time, four clamping blocks will release the fixing of the drill bit during the movement, so that the operator can conveniently replace the drill bit, thereby achieving the effects of enhancing equipment adaptability and application flexibility, effectively reducing production cost and significantly improving production efficiency. ACCURACY OF DRAWINGS

[0024] Figure 1 It is a structural schematic view of the utility model;

[0025] Figure 2 It is a back view structural schematic view of the utility model;

[0026] Figure 3 It is a sectional view structural schematic view of the utility model;

[0027] Figure 4 It is a sectional view structural schematic view of the first motor of the utility model;

[0028] Figure 5 It is a sectional view structural schematic view of the third motor of the utility model;

[0029] Figure 6 It is a structure diagram of the clamping block.

[0030] In the figure: 1, vertical plate; 2, sliding groove; 3, circular ring; 4, gear ring; 5, arc block; 6, moving rod; 7, circular shaft; 8, clamping block; 9, fixed shaft; 10, gear; 11, first motor; 12, rotating shaft; 13, threaded block; 14, toothed rod; 15, sliding block; 16, guide rail; 17, supporting block; 18, second motor; 19, bidirectional screw rod; 20, support; 21, air cylinder; 22, connecting block; 23, third motor; 24, rotating shaft; 25, circular plate; 26, connecting rod; 27, limiting block; 28, screw rod; 29, twisting block; 30, movable block; 31, movable rod; 32, hinged block; 33, clamping block; 34, drill bit; 35, moving block. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0032] As Figures 1 to 6 shown, the utility model provides a kind of oil pipe processing trepanning device, including:

[0033] Vertical plate 1, sliding groove 2 is set on the outer surface of vertical plate 1;

[0034] Driving mechanism, driving mechanism is set on the outer surface of vertical plate 1;

[0035] Fixing mechanism, fixing mechanism is set in the inside of vertical plate 1;

[0036] Wherein, fixing mechanism includes fixed shaft 9, fixed shaft 9 is fixedly connected with the outer surface of vertical plate 1, gear 10 is movably sleeved on the outer surface of fixed shaft 9, gear 10 outer surface is engagedly connected with gear ring 4, gear ring 4 outer surface is fixedly installed with circular ring 3, the outer surface of circular ring 3 is movably sleeved with the inside of vertical plate 1 outer surface, arc block 5 is fixedly installed in the inside of gear ring 4, moving rod 6 is movably sleeved on arc block 5, circular shaft 7 is movably sleeved in the inside of the other end of moving rod 6, the outer surface of circular shaft 7 is slidably connected with the inside of sliding groove 2, clamping block 8 is fixedly installed at the other end of circular shaft 7, the outer surface of clamping block 8 is movably sleeved with the inside of vertical plate 1.

[0037] Due to the internal movable sleeve joint of the circular ring 3 and the outer surface of the vertical plate 1, the tooth ring 4 can only drive the circular ring 3 to rotate along the inner surface of the outer surface of the vertical plate 1. Due to the internal movable sleeve joint of the gear 10 and the outer surface of the fixed shaft 9, the gear 10 can rotate around the fixed shaft 9 as the axis. Since the gear 10 is engaged with the tooth ring 4, when the gear 10 rotates, the tooth ring 4 and the circular ring 3 are rotated. At this time, the tooth ring 4 will drive the four motion rods 6 to move through the four arc blocks 5. Due to the limitation of the inner surface of the sliding groove 2, the four motion rods 6 will drive the four circular shafts 7 to move inward at this time. At the same time, the four clamping blocks 8 will move inward under the drive of the four circular shafts 7. At this time, the four clamping blocks 8 will clamp and fix the pipes inside the vertical plate 1 during the inward movement, so as to achieve the effect of fixing different sizes of oil extraction pipes.

[0038] The driving mechanism comprises:

[0039] The first motor 11 is fixedly connected to the top end of the vertical plate 1. The other end of the output shaft of the first motor 11 is fixedly sleeved with a rotating shaft 12.

[0040] The threaded block 13 is fixedly connected to the top end of the rotating shaft 12. The outer surface of the threaded block 13 is threadedly sleeved with a toothed rod 14. The outer surface of the toothed rod 14 is engagedly connected with the outer surface of the gear 10.

[0041] When the first motor 11 operates, the rotating shaft 12 will drive the threaded block 13 to rotate at this time. Since the outer surface of the threaded block 13 is threadedly sleeved with the inner surface of the toothed rod 14, the threaded block 13 will drive the toothed rod 14 to move upward at this time. Since the toothed rod 14 is engaged with the gear 10, the toothed rod 14 will drive the gear 10 to rotate at this time.

[0042] The front and rear sides of the bottom end of the vertical plate 1 are fixedly installed with sliding blocks 15. The inner surfaces of the sliding blocks 15 are slidably connected with guide rails 16.

[0043] Due to the design of the guide rail 16, the movement of the sliding block 15 is limited, so that the sliding block 15 can only move left and right along the outer surface of the guide rail 16. When the two vertical plates 1 drive the two groups of sliding blocks 15 to move along the outer surface of the guide rail 16, the distance between the two vertical plates 1 will change at this time, thereby achieving the effect of adjusting the distance between the two vertical plates 1 according to different pipe lengths.

[0044] The outer surface of the guide rail 16 is fixedly installed with a supporting block 17. The supporting block 17 is fixedly installed with a second motor 18. The other end of the output shaft of the second motor 18 is fixedly sleeved with a bidirectional screw rod 19.

[0045] When the second motor 18 operates, the bidirectional screw 19 will rotate at this time, due to the design of the supporting block 17, it will play a connecting role to the two guide rails 16, and the supporting block 17 will play a good supporting effect to the second motor 18 and the bidirectional screw 19.

[0046] The outer surface of the bidirectional screw 19 is threadedly sleeved with a moving block 35, and the top end of the moving block 35 is fixedly connected with the bottom end of the vertical plate 1.

[0047] Since the outer surface of the bidirectional screw 19 is threadedly sleeved with the inside of the moving block 35, when the bidirectional screw 19 rotates, it will drive the two moving blocks 35 to move, and at this time the two moving blocks 35 will drive the two vertical plates 1 to move towards each other as a whole.

[0048] The back surface of the guide rail 16 is fixedly installed with a support 20, the top end of the support 20 is fixedly installed with a gas cylinder 21, and the top end of the gas cylinder 21 is fixedly installed with a connecting block 22.

[0049] When the gas cylinder 21 operates, the top end thereof will drive the connecting block 22 to move up and down.

[0050] The top end of the connecting block 22 is fixedly installed with a third motor 23, the other end of the output shaft of the third motor 23 is fixedly sleeved with a rotating shaft 24, and the bottom end of the outer surface of the rotating shaft 24 is fixedly sleeved with a circular plate 25.

[0051] When the third motor 23 operates, the rotating shaft 24 will drive the circular plate 25 to rotate at this time.

[0052] The bottom end of the circular plate 25 is fixedly installed with a connecting rod 26, and the bottom end of the connecting rod 26 is fixedly installed with a limiting block 27.

[0053] When the circular plate 25 rotates, it will drive the limiting block 27 to rotate through the connecting rod 26.

[0054] The inside of the top end of the limiting block 27 is movably sleeved with a lead screw 28, the top end of the lead screw 28 is fixedly installed with a twisting block 29, the outer surface of the lead screw 28 is threadedly sleeved with a movable block 30, the inside of the twisting block 29 is hingedly connected with an active rod 31, the other end of the active rod 31 is hingedly connected with a hinged block 32, and the outer surface of the hinged block 32 is slidably connected with the inside of the limiting block 27.

[0055] When the limiting block 27 rotates, it will simultaneously drive the four hinged blocks 32 to rotate, and since the outer surface of the lead screw 28 is threadedly sleeved with the inside of the movable block 30, when the operator drives the lead screw 28 to rotate by twisting the twisting block 29, at this time the lead screw 28 will drive the four movable blocks 30 to move downward, and at this time the four movable blocks 30 will drive the four hinged blocks 32 to move through the four active rods 31, and since the inside of the limiting block 27 is limited, at this time the four hinged blocks 32 will move outward.

[0056] The outer surface of the articulated block 32 is fixedly provided with a clamping block 33, and the inner portion of the clamping block 33 is movably connected with a drill bit 34.

[0057] When the four articulated blocks 32 rotate, the drill bit 34 is driven to rotate by the four clamping blocks 33, and the drill bit 34 can perform a hole opening operation on the pipeline.

[0058] Working principle and use process of the utility model:

[0059] When the operator needs to open a hole in the oil extraction pipe, the operator first measures the length of the pipeline, and after the measurement is completed, the operator starts the second motor 18, and the bidirectional screw rod 19 rotates. In this process, the two groups of sliding blocks 15 are driven by the vertical plates 1 to move along the outer surface of the guide rail 16.

[0060] When the distance between the two vertical plates 1 matches the length of the pipeline, the operator inserts the pipeline into the inside of the two vertical plates 1, and then starts the two first motors 11. At this time, the rotating shaft 12 will drive the threaded block 13 to rotate. Since the outer surface of the threaded block 13 is sleeved with the internal threads of the toothed rod 14, the threaded block 13 will drive the toothed rod 14 to move upward when it rotates. Since the outer surface of the toothed rod 14 is engaged with the outer surface of the gear 10, the toothed rod 14 will drive the gear 10 to rotate around the fixed shaft 9 when it moves upward. Since the outer surface of the gear 10 is engaged with the outer surface of the toothed ring 4, the gear 10 will drive the circular ring 3 to rotate along the inside of the vertical plate 1 when it rotates. At the same time, the toothed ring 4 will drive the four arc-shaped blocks 5 to rotate. At this time, the four arc-shaped blocks 5 will drive the four moving rods 6 to move in rotation. The other end of the four moving rods 6 will push and extrude the four circular shafts 7. Since the inside of the chute 2 is designed to limit the movement of the circular shaft 7, the four circular shafts 7 will move inward along the inside of the four chutes 2. At the same time, the four clamping blocks 8 will move inward under the drive of the four circular shafts 7. Then, the four clamping blocks 8 will clamp and fix the pipeline inside the vertical plate 1 in inward movement, thereby realizing the function of fixing oil extraction pipes of different sizes.

[0061] When the oil extraction pipe is fixed, the operator starts the third motor 23. At this time, the rotating shaft 24 will drive the circular plate 25 to rotate, and then the circular plate 25 will drive the limiting block 27 to rotate through the connecting rod 26. At the same time, the limiting block 27 will drive the clamping block 33 to rotate through the movable rod 31. In this process, the clamping block 33 will drive the drill bit 34 to rotate. Then, the operator starts the air cylinder 21. At this time, the top end of the air cylinder 21 will drive the connecting block 22 to move downward. Then, the connecting block 22 will drive the third motor 23 to move downward as a whole. When the drill bit 34 contacts the oil extraction pipe in downward movement, it will perform a hole opening operation on the oil extraction pipe.

[0062] When the operator needs to open holes with different inner diameters on the pipeline, it is necessary to replace the drill bit 34 of different sizes, first the operator twists the twisting block 29, at this time the twisting block 29 will drive the screw rod 28 to rotate, because the outer surface of the screw rod 28 is sleeved with the internal thread of the movable block 30, when the screw rod 28 rotates, it will drive the movable block 30 to move downward, at this time the movable block 30 will drive the four movable rods 31 to move, at this time the four movable rods 31 will respectively extrude and push the four hinged blocks 32, because of the design inside the limiting block 27, the movement of the hinged block 32 is limited, at this time the four hinged blocks 32 will be driven by the four movable rods 31 to move outward along the inside of the limiting block 27, at the same time the four clamping blocks 33 will be driven by the four hinged blocks 32 to move outward, then the four clamping blocks 33 will release the clamping and fixing effect on the drill bit 34 in the outward movement, so that the operator can take out the drill bit 34 from the four clamping blocks 33, thereby realizing the function of facilitating the operator to replace the drill bit 34.

[0063] It should be noted that in this document, the terms such as first and second are used only to distinguish one entity or operation from another, and do not necessarily require or imply these entities or operations have any such actual relationship or order. Moreover, the terms "include", "contain" or any other variants thereof are intended to cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or equipment.

[0064] Although the embodiments of the present application have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the present application, the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A drilling device for oil production tubing, characterized in that, The utility model relates to a vertical plate (1) is provided with the sliding groove (2) on the outer surface, and the sliding groove (2) is connected with the sliding block (8) on the outer surface of the vertical plate (1) through the gear (10), the gear (10), the gear ring (4), the circular ring (3), the arc block (5), the movement rod (6), the circular shaft (7) and the clamping block (8) are connected, and the sliding block (8) is connected with the sliding block (15) on the bottom of the vertical plate (1) through the guide rail (16), the guide rail (16) is connected with the support block (17) on the back of the vertical plate (1) through the second motor (18), the second motor (18) is connected with the bidirectional screw rod (19) through the movement block (35), the bidirectional screw rod (19) is connected with the support block (17) through the third motor (23), and the third motor (23) is connected with the rotating shaft (24) through the connecting block (22), the rotating shaft (24) is connected with the circular plate (25) through the connecting rod (26), and the connecting rod (26) is connected with the limiting block (27). The utility model relates to a vertical plate (1) is provided with the sliding groove (2) on the outer surface, and the sliding groove (2) is connected with the sliding block (8) on the outer surface of the vertical plate (1) through the gear (10), the gear (10), the gear ring (4), the circular ring (3), the arc block (5), the movement rod (6), the circular shaft (7) and the clamping block (8) are connected, and the sliding block (8) is connected with the sliding block (15) on the bottom of the vertical plate (1) through the guide rail (16), the guide rail (16) is connected with the support block (17) on the back of the vertical plate (1) through the second motor (18), the second motor (18) is connected with the bidirectional screw rod (19) through the movement block (35), the bidirectional screw rod (19) is connected with the support block (17) through the third motor (23), and the third motor (23) is connected with the rotating shaft (24) through the connecting block (22), the rotating shaft (24) is connected with the circular plate (25) through the connecting rod (26), and the connecting rod (26) is connected with the limiting block (27). The utility model relates to a vertical plate (1) is provided with the sliding groove (2) on the outer surface, and the sliding groove (2) is connected with the sliding block (8) on the outer surface of the vertical plate (1) through the gear (10), the gear (10), the gear ring (4), the circular ring (3), the arc block (5), the movement rod (6), the circular shaft (7) and the clamping block (8) are connected, and the sliding block (8) is connected with the sliding block (15) on the bottom of the vertical plate (1) through the guide rail (16), the guide rail (16) is connected with the support block (17) on the back of the vertical plate (1) through the second motor (18), the second motor (18) is connected with the bidirectional screw rod (19) through the movement block (35), the bidirectional screw rod (19) is connected with the support block (17) through the third motor (23), and the third motor (23) is connected with the rotating shaft (24) through the connecting block (22), the rotating shaft (24) is connected with the circular plate (25) through the connecting rod (26), and the connecting rod (26) is connected with the limiting block (27). The utility model relates to a vertical plate (1) is provided with the sliding groove (2) on the outer surface, and the sliding groove (2) is connected with the sliding block (8) on the outer surface of the vertical plate (1) through the gear (10), the gear (10), the gear ring (4), the circular ring (3), the arc block (5), the movement rod (6), the circular shaft (7) and the clamping block (8) are connected, and the sliding block (8) is connected with the sliding block (15) on the bottom of the vertical plate (1) through the guide rail (16), the guide rail (16) is connected with the support block (17) on the back of the vertical plate (1) through the second motor (18), the second motor (18) is connected with the bidirectional screw rod (19) through the movement block (35), the bidirectional screw rod (19) is connected with the support block (17) through the third motor (23), and the third motor (23) is connected with the rotating shaft (24) through the connecting block (22), the rotating shaft (24) is connected with the circular plate (25) through the connecting rod (26), and the connecting rod (26) is connected with the limiting block (27). ​ 2. A device for machining a hole in an oil production pipe according to claim 1, characterized in that: ​ ​ ​ 3. The apparatus of claim 1 wherein: ​ 4. A device for machining a hole in an oil production pipe according to claim 3, characterized in that: ​ 5. A device for machining a hole in an oil production pipe according to claim 4, characterized in that: ​ 6. An apparatus for machining a hole in a production tubing as defined in claim 4 wherein: ​ 7. A device for machining a hole in an oil production pipe according to claim 6, characterized in that: ​ 8. A device for machining a hole in an oil production pipe according to claim 7, characterized in that: ​ 9. A device for machining a hole in an oil pipe according to claim 8, characterized in that: The inside of the top end of the limiting block (27) movably sleeves a lead screw (28), the top end of the lead screw (28) fixedly installs a twisting block (29), the outer surface of the lead screw (28) threadedly sleeves a movable block (30), the inside of the twisting block (29) is hinged with a movable rod (31), the other end of the movable rod (31) is hinged with a hinge block (32), the outer surface of the hinge block (32) is in sliding connection with the inside of the limiting block (27).

10. A device for machining a hole in an oil production pipe according to claim 9, characterized in that: The outer surface of the hinge block (32) fixedly installs a clamping block (33), the inside of the clamping block (33) movably connects with a drill bit (34).

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