A tubing thread processing device with self-adaptive adjusting function

Abstract

The utility model provides a kind of oil pipe thread processing device with self-adapting adjustment function, including oil pipe clamping structure, it includes rotating gear ring and sliding bar, the outer wall of the sliding bar is provided with spring telescopic link, the spring telescopic link is obliquely arranged, one end of the spring telescopic link is provided with the block that fits.This utility model design is reasonable, by the two groups of clamping structures of being set in the both sides of support structure top, the size of two groups of clamping structures is different and can simultaneously carry out the clamping of the different size of the both ends of a oil pipe, it is convenient to process the thread of oil pipe inner wall or outer wall, when oil pipe is pulled, the spring telescopic link of being arranged in different directions can be positioned in different directions to oil pipe, when oil pipe moves to one side, oil pipe will extrude a group of spring telescopic link, after extruding to limit, make the block that fits and the outer wall of oil pipe closely fit.

Description

Technical Field

[0001] This utility model mainly relates to the field of oil pipe thread processing, specifically to an oil pipe thread processing device with adaptive adjustment function. Background Technology

[0002] In the petroleum industry, oil pipes serve as vital channels for transporting oil and gas, and their ends typically require threaded connections for reliable bonding. Due to operational requirements, some oil pipes are designed with unequal diameters at both ends to meet specific installation or functional needs. The threading process for these unequal diameter pipes presents unique technical challenges in terms of clamping and positioning.

[0003] Currently, most common tubing threading devices use chucks, V-blocks, or specialized clamps to hold and fix the tubing. However, these traditional clamping devices are typically designed for tubing of the same diameter, and their clamping mechanisms can only accommodate a single diameter specification. When used to process tubing with different diameters at both ends, because the opening size of the jaws, chuck, or V-block is fixed, it can only effectively clamp the larger (or smaller) diameter portion of the tubing at one end, while the other end cannot be stably clamped due to the size mismatch.

[0004] This limitation leads to a series of processing problems: First, the oil pipe is in a cantilever state due to single-end clamping during processing, which is prone to bending deformation and vibration under cutting force, seriously affecting the machining accuracy and surface quality of the thread; Second, single-end clamping makes it difficult to ensure the coaxiality of the oil pipe axis and the machine tool spindle, which can easily lead to thread eccentricity, thereby affecting the sealing and mechanical properties of the oil pipe connection.

[0005] It should be noted that the above content falls within the scope of the inventor's technical knowledge. Due to the vast and complex nature of the technical content in this field, the above content of this application does not necessarily constitute prior art. Utility Model Content

[0006] 1. The technical problem to be solved by the utility model:

[0007] This invention provides a pipe thread processing device with adaptive adjustment function to solve the technical problems existing in the background art.

[0008] 2. Technical Solution:

[0009] To achieve the above objectives, the technical solution provided by this utility model is as follows: an oil pipe thread processing device with adaptive adjustment function, including a support structure, wherein an oil pipe clamping structure is rotatably connected to both sides of the support structure;

[0010] The oil pipe clamping structure includes a rotating toothed ring and a sliding bar. A spring telescopic rod is provided on the outer wall of the sliding bar. The spring telescopic rod is inclined. A contact block is provided at one end of the spring telescopic rod. The contact block is arc-shaped and made of rubber.

[0011] Furthermore, the support structure includes a support body, with side frames provided on both ends of the support body, and a mounting ring provided between the two side frames, with a through groove in the middle of the mounting ring.

[0012] Furthermore, a support bar is provided between the two side frames, a servo motor is provided on one side of the support bar, and a drive gear is provided at the output end of the servo motor.

[0013] Furthermore, the inner wall of the mounting ring is provided with guide strips, and guide grooves are provided on both sides of the guide strips. The number of guide strips is set to multiple, and the multiple guide strips are arranged in a ring array on the inner wall of the mounting ring.

[0014] Furthermore, the rotating gear ring is rotatably connected to the outside of the mounting ring, the rotating gear ring meshes with the drive gear, and the outer wall of the rotating gear ring is provided with an inclined groove.

[0015] Furthermore, a limiting strip is provided at the bottom of the sliding strip, the limiting strip is slidably connected to the guide groove, and a positioning shaft is provided on one side of the limiting strip, the positioning shaft is slidably connected to the inclined groove.

[0016] 3. Beneficial effects:

[0017] Compared with the prior art, the technical solution provided by this utility model has the following advantages:

[0018] This utility model features two sets of clamping structures on both sides of the top of the support structure. The two sets of clamping structures are of different sizes, which can clamp different sizes at both ends of an oil pipe at the same time, which facilitates the processing of threads on the inner or outer wall of the oil pipe. At the same time, when the oil pipe is pulled, the spring telescopic rods set in different directions can limit the oil pipe in different directions. When the oil pipe moves to one side, the oil pipe will squeeze a set of spring telescopic rods. After being squeezed to the limit, the fitting block is tightly fitted to the outer wall of the oil pipe. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0020] Figure 2 This is a three-dimensional structural diagram of the support structure of this utility model;

[0021] Figure 3This is a three-dimensional unfolded schematic diagram of the oil pipe clamping structure of this utility model.

[0022] Figure label:

[0023] 1. Bracket structure; 101. Bracket body; 102. Side frame; 103. Mounting ring; 104. Support bar; 105. Servo motor; 106. Drive gear; 107. Through groove; 108. Guide bar; 109. Guide groove; 2. Oil pipe clamping structure; 201. Rotary toothed ring; 202. Inclined groove; 203. Sliding bar; 204. Limiting bar; 205. Positioning shaft; 206. Spring telescopic rod; 207. Adhesive block. Detailed Implementation

[0024] To facilitate understanding of this utility model, a more comprehensive description of the utility model will be given below with reference to the accompanying drawings, which show several embodiments of the utility model. However, the utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that the disclosure of the utility model will be more thorough and complete.

[0025] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "page", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0026] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0027] In this utility model, unless otherwise explicitly specified and limited, the terms "installed," "connected," "linked," "fixed," "provided with," and "located in" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0028] Example

[0029] See attached document Figure 1-3 A pipe thread processing device with adaptive adjustment function includes a support structure 1, and a pipe clamping structure 2 is rotatably connected to both sides of the support structure 1.

[0030] The tubing clamping structure 2 includes a rotating gear ring 201 and a sliding bar 203. A spring telescopic rod 206 is provided on the outer wall of the sliding bar 203. The spring telescopic rod 206 is inclined, and a contact block 207 is provided at one end of the spring telescopic rod 206. The contact block 207 is arc-shaped and made of rubber. The rotating gear ring 201 is rotatably connected to the outside of the mounting ring 103. The rotating gear ring 201 meshes with the drive gear 106. An inclined groove 202 is formed on the outer wall of the rotating gear ring 201. A limit strip 204 is provided at the bottom of the sliding bar 203. The limit bar 204 is slidably connected to the guide groove 109. A positioning shaft 205 is provided on one side of the limit bar 204. The positioning shaft 205 is slidably connected to the inclined groove 202. The two sets of sliding bars 203 move inward to different ranges, so that the two sets of sliding bars 203 can clamp the different diameters at both ends of the oil pipe respectively. The rotating toothed ring 201 rotates at one end of the mounting ring 103, so that the inclined groove 202 inside the rotating toothed ring 201 drives the limit bar 204 at the bottom of the sliding bar 203 to rotate on the outer wall of the guide bar 108 through the positioning shaft 205. One end of the sliding bar 203 fits against the outer wall of the oil pipe to clamp the oil pipe.

[0031] Simultaneously, the bonding block 207 is positioned further inward than the inner horizontal plane of the sliding bar 203, allowing the bonding block 207 to first adhere to the outer wall of the oil pipe, followed by the sliding bar 203. This causes the bonding block 207 to press against the spring telescopic rod 206, which in turn reacts to the bonding block 207, ensuring a tight fit between the bonding block 207 and the outer wall of the oil pipe. Furthermore, the two sets of bonding blocks 207 are positioned in opposite directions. When the oil pipe is stretched to one side, the horizontal force of the oil pipe always acts on the surface of one set of bonding blocks 207. Frictional connection between the bonding block 207 and the oil pipe, and after the spring telescopic rod 206 is compressed to its limit, ensures an even tighter fit between the bonding block 207 and the oil pipe, preventing significant shaking of the oil pipe during processing.

[0032] Furthermore, the bracket structure 1 includes a bracket body 101, with side frames 102 provided on both ends of the bracket body 101. A mounting ring 103 is provided between the two side frames 102, and a through groove 107 is provided in the middle of the mounting ring 103. A support bar 104 is provided between the two side frames 102, and a servo motor 105 is provided on one side of the support bar 104. A drive gear 106 is provided at the output end of the servo motor 105, and a guide bar is provided on the inner wall of the mounting ring 103. 108. Guide grooves 109 are provided on both sides of the guide bar 108. The number of guide bars 108 is set to multiple. Multiple guide bars 108 are arranged in a ring on the inner wall of the mounting ring 103. When it is necessary to process threads on the inner or outer wall of the oil pipe, the oil pipe is inserted into the through groove 107 and the servo motor 105 is started. The servo motor 105 drives the drive gear 106 to rotate. The drive gear 106 is used to drive the parts inside the oil pipe clamping structure 2 to rotate, so as to clamp the oil pipe and perform thread processing.

[0033] Preparation and loading: Pass the different diameter oil pipes at both ends to be processed through the through groove (107) in the center of the mounting ring (103) on both sides of the support structure (1) and roughly position them.

[0034] Start clamping drive: Start the servo motor (105), whose output shaft drives the drive gear (106) to rotate.

[0035] Synchronous rotation and radial feed: The drive gear (106) drives the two meshing rotating gear rings (201) to rotate synchronously but independently. The inclined grooves (202) opened on the inner wall of each rotating gear ring (201) rotate accordingly.

[0036] Radial movement of sliding bar 203: The rotation of the inclined groove (202) forces the sliding bar (203) connected to it via the positioning shaft (205) to produce radial movement. The limiting bar (204) at the bottom of the sliding bar (203) slides along the guide groove (109) on the inner wall of the mounting ring (103) to ensure that it only makes stable radial movement and does not deflect.

[0037] Adaptive pre-contact and clamping:

[0038] As the sliding bar (203) moves radially inward, the arc-shaped rubber contact block (207) at the end of the spring telescopic rod (206) mounted at its front end first contacts the outer wall of the oil pipe.

[0039] As the feed continues, the tubing squeezes the bonding block (207), compressing the spring telescopic rod (206). The reaction force generated by the spring causes the bonding block (207) to fit tightly and flexibly against the tubing surface, forming an initial, cushioned clamping effect.

[0040] Because the clamping structures on both sides can be independently adjusted to different radial positions, they can simultaneously accommodate and clamp different diameters at both ends of the oil pipe.

[0041] Rigid final positioning: When the spring telescopic rod (206) is compressed to a certain extent or reaches the preset stroke, the inner end face of the sliding bar (203) may directly or indirectly contact the oil pipe (or through another stage structure) to provide final rigid positioning support. Together with the flexible clamping of the spring, it ensures high rigidity clamping of the oil pipe during processing.

[0042] Tensile strength and anti-sway: During processing, if the oil pipe tends to move axially due to cutting force, its axial force will act on the two sets of spring telescopic rods (206) and the contact block (207) set in opposite directions. The force in this direction will further compress the spring on one side, thereby increasing the normal pressure and friction between the contact block 207 on that side and the oil pipe, effectively suppressing the axial movement and vibration of the oil pipe, and achieving self-adaptive limiting.

[0043] Machining and unloading: After clamping, thread turning and other machining can be performed. After machining is completed, the servo motor (105) reverses and drives the rotating gear ring (201) to make the sliding bar (203) retract radially, so that the oil pipe can be removed.

[0044] The above-described embodiments are merely illustrative of certain implementations of this utility model, and their descriptions are relatively specific and detailed. However, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these modifications and improvements all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A pipe thread processing device with adaptive adjustment function, characterized in that: include A support structure (1) is provided, and oil pipe clamping structures (2) are rotatably connected to both sides of the support structure (1). The oil pipe clamping structure (2) includes a rotating toothed ring (201) and a sliding bar (203). The outer wall of the sliding bar (203) is provided with a spring telescopic rod (206). The spring telescopic rod (206) is inclined. One end of the spring telescopic rod (206) is provided with a bonding block (207). The bonding block (207) is arc-shaped and made of rubber.

2. The oil pipe thread processing device with adaptive adjustment function according to claim 1, characterized in that: The support structure (1) includes a support body (101), with side frames (102) provided on both sides of the support body (101), and an installation ring (103) provided between the two side frames (102), with a through groove (107) in the middle of the installation ring (103).

3. The oil pipe thread processing device with adaptive adjustment function according to claim 2, characterized in that: A support bar (104) is provided between the two side frames (102), and a servo motor (105) is provided on one side of the support bar (104). A drive gear (106) is provided at the output end of the servo motor (105).

4. The oil pipe thread processing device with adaptive adjustment function according to claim 2, characterized in that: The inner wall of the mounting ring (103) is provided with guide strips (108), and guide grooves (109) are provided on both sides of the guide strips (108). The number of guide strips (108) is set to multiple, and the multiple guide strips (108) are arranged in a ring array on the inner wall of the mounting ring (103).

5. The oil pipe thread processing device with adaptive adjustment function according to claim 1, characterized in that: The rotating gear ring (201) is rotatably connected to the outside of the mounting ring (103). The rotating gear ring (201) meshes with the drive gear (106). An inclined groove (202) is provided on the outer wall of the rotating gear ring (201).

6. The oil pipe thread processing device with adaptive adjustment function according to claim 1, characterized in that: The bottom of the sliding bar (203) is provided with a limiting bar (204), the limiting bar (204) is slidably connected to the guide groove (109), and a positioning shaft (205) is provided on one side of the limiting bar (204), the positioning shaft (205) is slidably connected to the inclined groove (202).

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