Pipeline welding butt joint device

Abstract

The utility model relates to a pipeline welding butt joint device which comprises a base, a moving mechanism, a clamping mechanism and a driving mechanism, a mounting seat is arranged on the base, the moving mechanism comprises two moving seats which are movably arranged on the mounting seat in a translation mode, translation rails of the two moving seats are located on the same straight line, the translation directions of the two moving seats are opposite, and the clamping mechanism is arranged on the mounting seat. The clamping mechanism comprises two clamping assemblies used for clamping a pipeline, each clamping assembly comprises two fixed clamping parts and a movable clamping part, the fixed clamping parts are sequentially distributed at intervals in the translation direction of the movable base and fixedly arranged on the movable base, and the movable clamping parts are arranged at intervals in the translation direction of the movable base. The movable clamping part is located between the two corresponding fixed clamping parts, and the movable clamping part is arranged on the movable seat in a vertically movable mode and is provided with a clamping position close to the corresponding fixed clamping part to clamp a pipeline and an unlocking position away from the corresponding fixed clamping part. And the subsequent welding efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of pipeline welding, in particular to a pipeline welding butt joint device. Background Art

[0002] When connecting tubular parts made of different materials, especially metal pipes or PP pipes, the industry currently generally adopts pipe hot-melt welding, pipe thread connection, pipe flange connection and other connection methods. In piping projects, the welding of pipe joints accounts for a large workload.

[0003] At present, as described in the patent with publication number CN213764720U, it discloses a pipeline welding docking device, which technical solution includes a docking device body, a first pipeline and a second pipeline, the first pipeline is arranged at the left end of the second pipeline, the docking device body includes a first clamping ring and a second clamping ring, the first clamping ring is arranged on the outer wall of the right end of the first pipeline, and the second clamping ring is arranged on the outer wall of the left end of the second pipeline. A first through hole is opened at one end of the first clamping ring and the second clamping ring, an internal threaded cylinder is fixedly installed on the inner wall of the first through hole, an adjusting rod is connected to the inner wall of the internal threaded cylinder, a basket bolt is fixedly installed between the first clamping ring and the second clamping ring, the inner wall of one end of the basket bolt is connected to the adjusting rod, an external thread is fixedly installed on the outer wall of the adjusting rod, and nuts are provided on the left side of the first clamping ring and the right side of the second clamping ring at the left end.

[0004] However, the welding butt joint device fixes the pipe by clamping the pipe with a clamp ring, and the diameter of the clamp ring is a fixed value, which is difficult to be applied to the butt joint of pipes with different diameters. Utility Model Content

[0005] The main purpose of the utility model is to provide a pipeline welding butt joint device, aiming to provide a pipeline welding butt joint device which can be applicable to pipelines with different diameters.

[0006] To achieve the above-mentioned purpose, the utility model proposes a pipeline welding and butt-jointing device, comprising a base, a moving mechanism, a clamping mechanism and a driving mechanism, wherein the base is detachably provided with a mounting seat, the moving mechanism comprises two moving seats movably arranged on the mounting seat, the translation tracks of the two moving seats are located on the same straight line, and the translation directions of the two moving seats are opposite; the clamping mechanism comprises two clamping assemblies for clamping the pipeline, the two clamping assemblies each comprise two fixed clamping parts and a movable clamping part, each of the fixed clamping parts is sequentially spaced and fixedly arranged on the moving seat along the translation direction of the moving seat, the movable clamping part is located between the corresponding two fixed clamping parts along the translation direction of the moving seat, the movable clamping part can be movably arranged on the moving seat up and down and has a clamping position close to the corresponding fixed clamping part for clamping the pipeline and an unlocking position away from the corresponding fixed clamping part, and the driving mechanism is drivingly connected to the two moving seats.

[0007] According to some embodiments of the utility model, it also includes an adjusting mechanism for driving the movable clamping part to move up and down, the adjusting mechanism includes a supporting part and a screw, the supporting part is arranged between the corresponding two fixed clamping parts along the translation direction of the movable seat; the screw is threadedly connected to the supporting part along the up and down directions, and the free end of the screw is threadedly connected to the top of the movable clamping part.

[0008] According to some embodiments of the present invention, the adjustment mechanism further includes a guide structure for movably guiding the movable clamping portion.

[0009] According to some embodiments of the utility model, the guide structure includes at least one guide column extending in the up and down directions, the guide column is arranged on the movable seat, and the movable clamping part is provided with at least one guide hole, the number of guide holes is the same as that of guide columns and they correspond one to one.

[0010] According to some embodiments of the present invention, an arc groove is formed at the upper end of each fixed clamping part and the lower end of each movable clamping part.

[0011] According to some embodiments of the utility model, a rubber pad is provided on each of the arc-shaped grooves.

[0012] According to some embodiments of the utility model, the driving mechanism includes a bidirectional threaded rod and a motor, the bidirectional threaded rod includes a first thread segment and a second thread segment with opposite rotation directions, the two movable seats are respectively screwed on the first thread segment and the second thread segment, the motor is arranged on the base and is drivingly connected to the bidirectional threaded rod.

[0013] According to some embodiments of the present utility model, the axis of the output shaft of the motor deviates from the axis of the bidirectional threaded rod, and the output shaft of the motor is connected to the bidirectional threaded rod via a transmission structure.

[0014] According to some embodiments of the utility model, the mounting seat is further provided with a limiting structure for limiting the translational travel of the moving seat.

[0015] The utility model has at least the following beneficial effects:

[0016] In the utility model, after the two pipes to be butted are respectively placed in the clamping mechanism, the movable clamping part is operated to flexibly cooperate with the two fixed clamping parts in the up-down direction to clamp the pipes. Because the movable clamping part is located between the corresponding two fixed clamping parts and is not directly located above one of the fixed clamping parts, it is achieved that the pipe is subjected to two supporting forces at the bottom and one pressure at the top in the axial direction, and the three forces are respectively located on different radial planes, so that pipes of different diameters can be clamped, and the scope of application is wider. Because the translation tracks of the two movable seats are located on the same straight line, and the fixed clamping part and the movable clamping part are both arranged on the movable seat, the coaxiality of the two pipes can be ensured to be good during the docking process to reduce problems such as uneven welds caused by intermediate misalignment. Moreover, the translation directions of the two movable seats are opposite, and the two movable seats can be driven by the driving mechanism to move toward each other, thereby achieving a quick docking effect. After completing the pipeline welding and taking away the welded pipeline, the two movable seats are driven to move in opposite directions to complete the reset, and then the next group of pipelines can be docked. Compared with manual docking, the working time before welding preparation is reduced, and the construction efficiency of the entire welding is improved.

[0017] Secondly, the utility model provides a pipeline welding butt joint device, which has a simple structure, occupies a small area, and does not require the use of multiple devices during butt joint. Therefore, it can adapt to different relatively narrow construction spaces and has strong practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 A schematic structural diagram of a pipeline welding butt joint device provided by an embodiment of the utility model;

[0020] Figure 2 for Figure 1 A schematic diagram of the structure of the regulating mechanism;

[0021] Figure 3 for Figure 1 Schematic cross-sectional view of the moving mechanism in.

[0022] Description of reference numerals:

[0023] 1-base; 11-mounting seat; 111-slide groove; 112-limiting plate; 2-moving mechanism; 21-moving seat; 211-sliding part; 3-clamping mechanism; 31-clamping assembly; 311-fixed clamping part; 312-movable clamping part; 313-arc groove; 314-rubber pad; 4-driving mechanism; 41-bidirectional threaded rod; 42-motor; 5-adjusting mechanism; 51-support part; 52-screw; 53-guide column; 100-pipeline welding docking device. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present invention are described clearly and completely below. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0025] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back...), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0026] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the utility model, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the meaning of "and / or" appearing in the full text includes three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme that satisfies both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the utility model.

[0027] At present, the existing welding construction equipment requires the use of multiple equipment. When the equipment is set up, it is easily restricted by the limited construction space, which is not conducive to on-site operation. It is difficult to match the joints during specific operations, which is inconvenient for subsequent welding. In addition, the existing conventional docking adopts manual docking, which is time-consuming and labor-intensive, and greatly affects the efficiency of subsequent welding.

[0028] In view of this, the utility model provides a pipeline welding butt joint device. Figure 1-Figure 3 The utility model provides a specific embodiment of a pipeline welding butt joint device.

[0029] like Figure 1 The utility model provides a pipe welding butt joint device 100, comprising a base 1, a moving mechanism 2, a clamping mechanism 3 and a driving mechanism 4, wherein the base 1 is detachably provided with a mounting seat 11, the moving mechanism 2 comprises two moving seats 21 which are arranged on the mounting seat for translational movement, the translation tracks of the two moving seats 21 are located on the same straight line, and the translation directions of the two moving seats 21 are opposite; the clamping mechanism 3 comprises two clamping assemblies 31 for clamping pipes, and the two clamping assemblies 31 each comprise two fixed clamping parts 311 And a movable clamping part 312, each of the fixed clamping parts 311 is distributed in sequence along the translation direction of the moving seat 21 and is fixed on the moving seat 21, along the translation direction of the moving seat 21, the movable clamping part 312 is located between the corresponding two fixed clamping parts 311, the movable clamping part 312 can be movably arranged on the moving seat 21 up and down and has a clamping position close to the corresponding fixed clamping part 311 to clamp the pipe and an unlocking position away from the corresponding fixed clamping part 311, the driving mechanism 4 is drivingly connected to the two moving seats.

[0030] In the utility model, after the two pipes to be butted are respectively placed in the clamping mechanism 3, the movable clamping part 312 is operated to flexibly cooperate with the two fixed clamping parts 311 in the up-down direction to clamp the pipes. Because the movable clamping part 312 is located between the corresponding two fixed clamping parts 311 and is not directly located above one of the fixed clamping parts 311, the pipe is axially subjected to two supporting forces at the bottom and one pressure at the top, and the three forces are respectively located on different radial planes, so that pipes of different diameters can be clamped, and the scope of application is wider. Because the translation tracks of the two movable seats 21 are located on the same straight line, and the fixed clamping part 311 and the movable clamping part 312 are both arranged on the movable seat, the coaxiality of the two pipes can be ensured to be good during the docking process to reduce problems such as uneven welds caused by intermediate misalignment. Moreover, the translation directions of the two movable seats 21 are opposite, and the two movable seats 21 can be driven by the driving mechanism 4 to move toward each other, thereby achieving a quick docking effect. After completing the pipeline welding and removing the welded pipeline, the two movable seats 21 are driven to move in opposite directions to complete the reset, and then the next group of pipelines can be docked. Compared with manual docking, the working time before welding preparation is reduced, and the construction efficiency of the entire welding is improved.

[0031] It should be noted that there is no specific restriction on the movement mode of the two moving seats 21, for example, it can be sliding, rolling, etc. In one embodiment of the utility model, the moving seat 21 is provided with sliding parts 211 extending along the translation direction of the moving seat 21 on both sides along its translation movement direction, and a slide groove 111 adapted to the sliding part 211 is formed on the mounting seat 11. Each of the moving seats 21 is slidably installed on the slide groove 111 through the sliding part 211, and the sliding form is achieved by the cooperation between the slide groove 111 and the sliding part 211, which provides a guiding effect for the movement of the moving seat 21, so that the operation is highly stable and not easy to shake, and the accuracy of pipeline docking can be improved.

[0032] Furthermore, considering that the pipeline has an arc-shaped outer surface, in order to adapt to the shape of the pipeline, in one embodiment, an arc-shaped groove 313 is formed at the upper end of each fixed clamping part 311 and the lower end of each movable clamping part 312. By adopting the arc-shaped groove 313, the contact area with the pipeline to be connected can be increased, thereby improving the clamping stability, which is beneficial to the welding process after the connection is completed.

[0033] In addition, in one embodiment, a rubber pad 314 is provided on each of the arc-shaped grooves 313 . The added rubber pad 314 can increase the friction between the pipe and the arc-shaped groove 313 , thereby improving the clamping stability.

[0034] It should be noted that the movable clamping portion 312 in the present invention is not specifically limited in its vertical movement mode, and can be driven by a cylinder, a hydraulic cylinder, etc. Figure 2 In one embodiment, the adjustment mechanism 5 for driving the movable clamping part 312 to move up and down includes a support part 51 and a screw rod 52. The support part 51 is arranged between the corresponding two fixed clamping parts 311 along the translation direction of the movable seat 21; the screw rod 52 is threadedly connected to the support part 51 along the vertical direction, and the free end of the screw rod 52 is threadedly connected to the top of the movable clamping part 312. In this way, by rotating the screw rod 52 in the forward or reverse direction, the movable clamping part 312 can be adjusted to move upward or downward along the vertical direction, and then the pipe can be clamped or loosened during its movement. The operation is simple and convenient, and the adjustment accuracy is high. In this embodiment, a rotating handle is arranged on the top of the screw rod 52 to increase the torque, making the rotation easier and more labor-saving. The specific form of the support part 51 is not specifically limited, for example, it can be a U-shaped frame, a gantry frame, etc.

[0035] Furthermore, in order to make the movable stroke of the movable clamping part 312 more stable, each of the adjustment mechanisms 5 also includes a guide structure for guiding the movable clamping part. The movable stroke of the movable clamping part is stabilized by the guide structure, and no deviation or shaking occurs. Specifically, in one embodiment, the guide structure includes at least one guide column 53 extending in the up-down direction, and the guide column 53 is arranged on the movable seat. The movable clamping part 312 is provided with at least one guide hole, and the number of guide holes is the same as that of the guide column 53 and they are matched in a one-to-one corresponding manner. The guide column 53 can play a role of limiting and guiding the movable clamping part 312, so that the movable clamping part 312 is limited to move in the up-down direction, avoiding the occurrence of oblique deviation, affecting the clamping accuracy, and further affecting the accuracy of docking.

[0036] Specifically, see Figure 3 In one embodiment, the driving mechanism 4 includes a bidirectional threaded rod 41 and a motor 42. The bidirectional threaded rod 41 includes a first thread segment and a second thread segment with opposite rotation directions. The two moving seats 21 are respectively screwed to the first thread segment and the second thread segment; the motor 42 is arranged on the base 1 and is drivingly connected to the bidirectional threaded rod 41. Since the first thread segment and the second thread segment have opposite rotation directions, when the bidirectional threaded rod 41 is rotated, the two moving seats 21 can be driven to move toward or in the opposite direction along the axial direction; preferably, in the embodiment provided by the utility model, two bidirectional threaded rods 41 are provided, which can improve the transmission efficiency and the stability of the transmission.

[0037] Specifically, the axis of the output shaft of the motor 42 deviates from the axis of the bidirectional threaded rod 41, and the output shaft of the motor 42 is connected to the bidirectional threaded rod 41 through a transmission structure. It should be noted that the transmission structure is not specifically limited and can be a chain drive or a belt drive, etc. Because the axis of the output shaft of the motor 42 deviates from the axis of the bidirectional threaded rod 41, the output shaft of the motor 42 and the bidirectional threaded rod 41 can be connected through a transmission belt. In this way, when multiple bidirectional threaded rods 41 are used, only one motor 42 is needed to simultaneously drive the multiple bidirectional threaded rods 41 to rotate, thereby reducing energy consumption.

[0038] Taking into account the possibility of collision when the two movable seats 21 move toward each other, in one embodiment, the mounting seat 11 is also provided with a limiting structure for limiting the translational stroke of the movable seat, for example, in this embodiment, it is a limiting plate 122. In this way, when the two movable seats 21 move toward each other, when they abut against the limiting plate 112, they will be restricted from continuing to move, thereby avoiding mutual squeezing and collision, thereby improving the safety of the pipeline welding and docking device 100.

[0039] Specifically, in one embodiment, the support portion 51 and the two fixed clamping portions 311 are connected to a rotation drive mechanism for driving them to rotate around the axis of the translation direction of the movable seat. In this way, when performing a welding operation, after welding one side, the pipe clamped in the clamping mechanism 3 can be driven to rotate around its axis by the rotation drive mechanism to weld the other side. This can avoid the situation where the pipe needs to be released before it can be rotated when welding the other side, which affects the welding accuracy and efficiency. It can be understood that the rotation drive mechanism does not have to be specifically designed. The body restriction, for example, can be an annular gear ring rotatably arranged on the movable seat, the inner wall of the annular gear ring is fixedly connected to the support portion 51 and the two fixed clamping portions 311, the outer gear ring of the annular gear ring is meshed with the gear fixed on the output shaft of the servo motor, and by operating the forward and reverse rotation of the servo motor, the annular gear ring can be driven to rotate to drive the support portion 51 and the two fixed clamping portions 311 to rotate clockwise or counterclockwise around the axis of the translation direction of the movable seat 21, so that after clamping the pipeline, the welding position of the pipeline can be adjusted without releasing the clamp.

[0040] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. 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. A pipe welding butt joint device, comprising a base, on which a mounting seat is detachably provided, characterized in that: Also includes: The moving mechanism comprises two moving seats which are arranged on the mounting seat for translational movement, the translation tracks of the two moving seats are located on the same straight line, and the translation directions of the two moving seats are opposite; A clamping mechanism, comprising two clamping assemblies for clamping a pipe, wherein the two clamping assemblies each comprise two fixed clamping parts and a movable clamping part, wherein the fixed clamping parts are sequentially spaced and fixedly arranged on the movable seat in the translation direction of the movable seat, wherein the movable clamping part is located between the two corresponding fixed clamping parts in the translation direction of the movable seat, wherein the movable clamping part can be movably arranged on the movable seat up and down and has a clamping position close to the corresponding fixed clamping part for clamping the pipe and an unlocking position away from the corresponding fixed clamping part; and, The driving mechanism is drivingly connected to the two moving seats.

2. The pipeline welding butt joint device according to claim 1, characterized in that: It also includes an adjustment mechanism for driving the movable clamping part to move up and down, and the adjustment mechanism includes: A supporting portion is disposed between the corresponding two fixed clamping portions along the translation direction of the movable seat; and The screw rod is extended in the up-down direction and is threadedly connected to the support part, and the free end of the screw rod is threadedly connected to the top of the movable clamping part.

3. The pipeline welding butt joint device according to claim 2, characterized in that: The adjustment mechanism also includes a guide structure for movably guiding the movable clamping portion.

4. The pipeline welding butt joint device according to claim 3, characterized in that: The guide structure includes at least one guide column extending in the up-down direction, the guide column is arranged on the movable seat, and the movable clamping part is provided with at least one guide hole, the number of the guide holes is the same as the guide columns and they are in one-to-one corresponding guiding cooperation.

5. The pipeline welding butt joint device according to claim 1, characterized in that: An arc groove is formed at the upper end of each fixed clamping part and the lower end of each movable clamping part.

6. The pipeline welding butt joint device according to claim 5, characterized in that: Each of the arc-shaped grooves is provided with a rubber pad.

7. The pipeline welding butt joint device according to claim 1, characterized in that: The driving mechanism comprises: The bidirectional threaded rod comprises a first threaded segment and a second threaded segment with opposite rotation directions, and the two movable seats are respectively screwed to the first threaded segment and the second threaded segment; and The motor is arranged on the base and is drivingly connected to the bidirectional threaded rod.

8. The pipeline welding butt joint device according to claim 7, characterized in that: The axis of the output shaft of the motor deviates from the axis of the bidirectional threaded rod, and the output shaft of the motor is connected to the bidirectional threaded rod through a transmission structure.

9. The pipeline welding butt joint device according to claim 1, characterized in that: The mounting seat is also provided with a limiting structure for limiting the translational travel of the moving seat.

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