Expandable clamping device for inner hole of oil pipe joint

Abstract

The utility model relates to the technical field of oil pipe joint machining, and discloses an expandable clamping device for an inner hole of an oil pipe joint, which comprises a machining table, a mounting block rotationally connected to the middle of the left side of the machining table, a mounting column fixedly connected to the middle of the mounting block, and a plurality of sliding grooves formed in the outer side of the mounting column. A first rotating rod is rotationally connected into the right side of the sliding groove, a second rotating rod is rotationally connected to the other end of the first rotating rod, a supporting frame is rotationally connected to the top end of the side, opposite to the first rotating rod, of the second rotating rod, an expansion pad is arranged at the top end of the supporting frame, and a sliding block is rotationally connected to the other end of the second rotating rod; push rods are fixedly connected to the left sides of the sliding blocks. According to the oil pipe connector clamping device, the oil pipe connector can be clamped easily after being installed due to internal expansion, so that the stability of the oil pipe connector is improved, the phenomenon that the connector is loosened and falls off in the machining process is reduced, the machining efficiency is improved easily, and the phenomenon that the work progress is delayed is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of oil pipe joint processing, in particular to an expandable clamping device for the inner hole of an oil pipe joint. Background Art

[0002] The oil pipe joint is a detachable connecting part used to connect oil pipes and oil pipes, and oil pipes and hydraulic components in the hydraulic system. Its main function is to connect two or more oil pipes to achieve smooth liquid or gas transmission in industrial equipment. The processing and clamping of the oil pipe joint is an important link to ensure the processing accuracy and stability of the oil pipe joint. During the processing, special fixtures or clamps are required to clamp the oil pipe joint to ensure that it is stably fixed on the processing equipment for processing.

[0003] After searching, a Chinese patent with publication number CN220296512U discloses a vertical drilling machine deep hole tool for oil pipe joints. The tooling of different sizes needs to be customized, which increases the manufacturing and procurement costs. Whenever oil pipe joints of different sizes need to be processed, drilling tools of corresponding sizes need to be configured. Customizing drilling tools of different sizes requires additional manufacturing and procurement costs. Tooling of each size needs to be designed and manufactured, which increases production costs. Therefore, it is convenient to clamp and position the oil pipe joints. When clamping oil pipe joints of different sizes, different upper chucks can be replaced. The upper chuck clamps the oil pipe joint from the top of the oil pipe joint. For oil pipe joints of different heights, the downward clamping height of the lower chuck is adjusted by adjusting the length of the basket bolt to adapt to the clamping of oil pipe joints of different heights.

[0004] There are still some shortcomings in the above-mentioned oil pipe joint processing process. When the oil pipe joint is processed, the stability of the oil pipe joint is relatively weak when it is installed on the processing table. It is usually inconvenient to clamp the oil pipe joint. The oil pipe joint is easily displaced due to the vibration caused by the processing, and thus falls off the processing table, making the joint easily damaged, which is not conducive to the processing operation, reduces the processing efficiency, and delays the work progress. Utility Model Content

[0005] The utility model aims to solve the shortcomings in the prior art and proposes an expandable clamping device for the inner hole of an oil pipe joint.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: an expandable clamping device for the inner hole of an oil pipe joint, comprising a processing table, a mounting block is rotatably connected to the middle part of the left side of the processing table, a mounting column is fixedly connected to the middle part of the mounting block, a plurality of slide grooves are arranged on the outer side of the mounting column, a first rotating rod is rotatably connected to the right inner part of the slide groove, the other end of the first rotating rod is rotatably connected to the second rotating rod, the second rotating rod and the top end of the opposite side of the first rotating rod are rotatably connected to a support frame, an expansion pad is arranged on the top of the support frame, a sliding block is rotatably connected to the other end of the second rotating rod, a push rod is fixedly connected to the left side of the sliding block, and the other ends of the plurality of push rods are fixedly connected to a connecting ring, a fixing plate is fixedly connected to the middle part of the left side of the processing table, a bolt is fixedly connected to the bottom end of the connecting ring, and a nut is threadedly connected to the outer side of the bolt.

[0007] As a further description of the above technical solution:

[0008] The front and rear sides of the top of the processing table are fixedly connected with fixed blocks, and the left side of the fixed block is rotatably connected with a pulley.

[0009] As a further description of the above technical solution:

[0010] A synchronous belt is arranged on the outer sides of the two pulleys, and a screw rod is fixedly connected to the right side of the pulley.

[0011] As a further description of the above technical solution:

[0012] A motor is fixedly mounted on the left side of the fixing block, and the left side of the screw rod on the front side is fixedly connected to the output end of the motor.

[0013] As a further description of the above technical solution:

[0014] The outer side of the screw rod is threadedly connected with a threaded tube, and one end of the threaded tube is fixedly connected with a mounting rod.

[0015] As a further description of the above technical solution:

[0016] The other end of the mounting rod is slidably connected to a slide rod, a top end of the slide rod is provided with a plurality of slots, and one end of the slide rod is fixedly connected to a positioning plate.

[0017] As a further description of the above technical solution:

[0018] The bottom end of the mounting rod is fixedly connected with a fixing sleeve, and the inner side of the fixing sleeve is slidably connected with a clamping block.

[0019] The utility model has the following beneficial effects:

[0020] 1. In the utility model, the installation of the oil pipe joint is enhanced to fix the oil pipe joint through the mutual cooperation of the mounting column, the slide groove, the first rotating rod, the second rotating rod, the slider, the push rod, the connecting ring, the support frame and the expansion pad, which is conducive to clamping the internal expansion of the oil pipe joint after installation, thereby improving the stability of the oil pipe joint and reducing the phenomenon of loosening and falling off of the joint during processing, which is conducive to improving processing efficiency and reducing the phenomenon of delays in work progress.

[0021] 2. In the utility model, through the cooperation of pulleys, synchronous belts, screws, threaded tubes, mounting rods, slide rods, slots, fixing sleeves, blocks and positioning plates, the processing of the joints is increased to facilitate the installation of the joints into the clamping device, and the function of automatic positioning and guiding is performed, which is beneficial to improving the positioning accuracy during the installation of the joints and reducing the deviation and skewing during the installation, which leads to the phenomenon of difficulty in installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the overall structure of the expandable clamping device for the inner hole of a tubing joint proposed by the utility model;

[0023] Figure 2 This is a schematic diagram of the mounting rod structure of the expandable clamping device for the inner hole of the oil pipe joint proposed by the utility model;

[0024] Figure 3 This is a schematic diagram of the mounting column structure of the expandable clamping device for the inner hole of the oil pipe joint proposed by the utility model;

[0025] Figure 4 This is a schematic diagram of the slideway structure of the expandable clamping device for the inner hole of the oil pipe joint proposed by the utility model;

[0026] Figure 5 This is a schematic diagram of the structure of a slider for the expandable clamping device for the inner hole of a tubing joint proposed by the utility model;

[0027] Figure 6 The utility model is a schematic diagram of the sliding rod structure of the expandable clamping device for the inner hole of the oil pipe joint.

[0028] Legend:

[0029] 1. Processing table; 2. Mounting block; 3. Mounting column; 4. Slide; 5. First rotating rod; 6. Second rotating rod; 7. Sliding block; 8. Push rod; 9. Connecting ring; 10. Support frame; 11. Expansion pad; 12. Fixing plate; 13. Bolt; 14. Nut; 15. Fixing block; 16. Pulley; 17. Synchronous belt; 18. Screw; 19. Threaded pipe; 20. Motor; 21. Mounting rod; 22. Sliding rod; 23. Slot; 24. Fixing sleeve; 25. Block; 26. Positioning plate. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0031] As attached Figure 1-6 As shown, an embodiment of the utility model is provided: an expandable clamping device for the inner hole of an oil pipe joint, comprising a processing table 1, a mounting block 2 is rotatably connected to the middle part of the left side of the processing table 1, a mounting column 3 is fixedly connected to the middle part of the mounting block 2, a plurality of slide grooves 4 are arranged on the outer side of the mounting column 3, a first rotating rod 5 is rotatably connected to the right inner part of the slide groove 4, a second rotating rod 6 is rotatably connected to the other end of the first rotating rod 5, a support frame 10 is rotatably connected to the top end of the second rotating rod 6 on the opposite side of the first rotating rod 5, an expansion pad 11 is arranged on the top end of the support frame 10, and the other end of the second rotating rod 6 is rotatably connected to the first rotating rod 5. A slider 7 is connected, a push rod 8 is fixedly connected to the left side of the slider 7, a connecting ring 9 is fixedly connected to the other end of the multiple push rods 8, a fixing plate 12 is fixedly connected to the middle of the left side of the processing table 1, a bolt 13 is fixedly connected to the bottom end of the connecting ring 9, a nut 14 is threadedly connected to the outer side of the bolt 13, which is conducive to pushing the connecting ring 9 to drive the multiple push rods 8 to be pushed, so that the first rotating rod 5 and the second rotating rod 6 rotate, driving the support frame 10 and the expansion pad 11 to rise, which is conducive to clamping the installed oil pipe joint, and improves the stability of the installation of the oil pipe joint, and the expansion pad 11 is made of rubber.

[0032] As attached Figure 2 As shown, the front and rear sides of the top of the processing table 1 are fixedly connected with a fixed block 15, the left side of the fixed block 15 is rotatably connected with a pulley 16, the outer sides of the two pulleys 16 are provided with a synchronous belt 17, the right side of the pulley 16 is fixedly connected with a screw rod 18, and the left side of the fixed block 15 is fixedly installed with a motor 20, the left side of the front screw rod 18 is fixedly connected to the output end of the motor 20, the outer side of the screw rod 18 is threadedly connected with a threaded tube 19, and one end of the threaded tube 19 is fixedly connected with a mounting rod 21, which is beneficial for the motor 20 as the output end to drive the two screw rods 18 to rotate under the action of the pulley 16 and the synchronous belt 17, thereby driving the movement of the threaded tube 19, which is beneficial for the clamped oil pipe joint to be installed on the mounting column 3, thereby facilitating the guiding and positioning of the oil pipe joint.

[0033] As attached Figure 6As shown, the other end of the mounting rod 21 is slidably connected to a slide rod 22, a plurality of slots 23 are provided at the top of the slide rod 22, one end of the slide rod 22 is fixedly connected to a positioning plate 26, the bottom end of the mounting rod 21 is fixedly connected to a fixing sleeve 24, the inner side of the fixing sleeve 24 is slidably connected to a blocking block 25, which is convenient for pushing the slide rod 22 to slide on the inner side of the mounting rod 21, and convenient for driving the two positioning plates 26 to clamp and fix the joint, thereby facilitating guiding and positioning.

[0034] Working principle: when in use, plug the oil pipe joint into the outer side of the mounting column 3, and then loosen the nut 14 so that the nut 14 loosens the bolt 13, and then move the connecting ring 9 so that the connecting ring 9 drives the bolt 13 to move, and when the connecting ring 9 is moved, it drives multiple push rods 8 to push rightward inside the slide groove 4, so that the push rod 8 pushes the slider 7 to slide on the inner side of the slide groove 4, and then when the slider 7 slides to the right, it squeezes the second rotating rod 6, so that the second rotating rod 6 rotates, so that one end rises, driving one end of the first rotating rod 5 to rise, so that the second rotating rod 6 and the first rotating rod 5 simultaneously push the support frame 10 to rise, so that the support frame 10 pushes the expansion pad 11 to rise, and when multiple expansion pads rise at the same time, it is convenient to tighten and fix the inserted oil pipe joint, thereby improving the tightness of the installation of the oil pipe joint, and then screw the nut 14 to fix the position of the moved bolt 13, so as to facilitate the lifting. The expansion pad 11 is fixed, and when the oil pipe joint is installed on the mounting column 3, the oil pipe joint is first placed in the middle of the two positioning plates 26, and then the block 25 is pulled open to release the engagement state of the block 25 and the corresponding slot 23, and then the slide bar 22 is pushed so that the slide bar 22 slides at the bottom end of the mounting rod 21, so as to drive the positioning plates 25 on both sides to approach each other, and then clamp the joint in the middle, and then the block 25 is re-inserted into the interior of the fixing sleeve 24, and then snapped into the interior of the corresponding slot 23, so as to fix the position of the slide bar 22, and then start the motor 20, the motor 20 drives the front side pulley 16 to rotate, and under the action of the synchronous belt 17, the rear side pulley 16 is driven to rotate, so that the two pulleys 16 rotate at the same time, thereby driving the threaded tube 19 to retract, so that the two threaded tubes 19 drive the clamped joint to approach the mounting column 3, so as to facilitate the guidance and positioning of the joint during installation.

[0035] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An expandable clamping device for the inner hole of an oil pipe joint, comprising a processing table (1), characterized in that: A mounting block (2) is rotatably connected to the middle part of the left side of the processing table (1), a mounting column (3) is fixedly connected to the middle part of the mounting block (2), a plurality of slide grooves (4) are arranged on the outer side of the mounting column (3), a first rotating rod (5) is rotatably connected to the right inner part of the slide groove (4), the other end of the first rotating rod (5) is rotatably connected to the second rotating rod (6), the second rotating rod (6) is rotatably connected to the top end of the opposite side of the first rotating rod (5) with a support frame (10), an expansion pad (11) is arranged on the top end of the support frame (10), the other end of the second rotating rod (6) is rotatably connected to a slider (7), a push rod (8) is fixedly connected to the left side of the slider (7), the other ends of the plurality of push rods (8) are fixedly connected to a connecting ring (9), a fixing plate (12) is fixedly connected to the middle part of the left side of the processing table (1), a bolt (13) is fixedly connected to the bottom end of the connecting ring (9), and a nut (14) is threadedly connected to the outer side of the bolt (13).

2. The expandable clamping device for the inner hole of a tubing joint according to claim 1, characterized in that: A fixing block (15) is fixedly connected to both the front and rear sides of the top of the processing table (1), and a pulley (16) is rotatably connected to the left side of the fixing block (15).

3. The expandable clamping device for the inner hole of a tubing joint according to claim 2, characterized in that: A synchronous belt (17) is arranged on the outer sides of the two pulleys (16), and a screw rod (18) is fixedly connected to the right side of the pulley (16).

4. The expandable clamping device for the inner hole of a tubing joint according to claim 3, characterized in that: A motor (20) is fixedly mounted on the left side of the fixed block (15), and the left side of the front screw rod (18) is fixedly connected to the output end of the motor (20).

5. The expandable clamping device for the inner hole of a tubing joint according to claim 3, characterized in that: The outer side of the screw rod (18) is threadedly connected to a threaded tube (19), and one end of the threaded tube (19) is fixedly connected to a mounting rod (21).

6. The expandable clamping device for the inner hole of a tubing joint according to claim 5, characterized in that: The other end of the mounting rod (21) is slidably connected to a slide rod (22), a top end of the slide rod (22) is provided with a plurality of slots (23), and one end of the slide rod (22) is fixedly connected to a positioning plate (26).

7. The expandable clamping device for the inner hole of a tubing joint according to claim 5, characterized in that: A fixing sleeve (24) is fixedly connected to the bottom end of the mounting rod (21), and a clamping block (25) is slidably connected to the inner side of the fixing sleeve (24).

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