Pipeline welding auxiliary device

Abstract

The utility model relates to a pipeline welding auxiliary device which comprises an annular mounting plate, a plurality of shear fork type telescopic mechanisms and a telescopic driving mechanism used for driving the shear fork type telescopic mechanisms to synchronously stretch and retract, and the shear fork type telescopic mechanisms are arranged on the inner wall of the annular mounting plate at intervals in the circumferential direction of the annular mounting plate. The telescopic direction of each shear fork type telescopic mechanism is the direction close to or away from the axis of the annular mounting plate, and the free end of each shear fork type telescopic mechanism is connected with a clamping part. And the telescopic driving mechanism is in driving connection with each scissor-fork type telescopic mechanism. The telescopic driving mechanism can simultaneously drive the multiple shear fork type telescopic mechanisms to stretch out and draw back so as to clamp the pipeline at the same time, operation is easy, clamping is rapid, and the follow-up welding efficiency can be improved.

Description

Technical Field

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

[0002] During the construction of the infrastructure of a building, it is often necessary to connect various pipes. In addition to the common threaded connection and flange connection, there is also the more common welding. There are many metal pipe risers in the pipe wells of high-rise buildings, and they are all welded.

[0003] The current pipeline welding auxiliary equipment fixes the pipeline by means of multiple fasteners cooperating with each other. However, multiple fasteners need to be operated separately during fixation, which makes the fixation process more complicated and affects the construction efficiency. Utility Model Content

[0004] The main purpose of the utility model is to provide a pipeline welding auxiliary device, aiming to solve the problem that the existing pipeline welding auxiliary equipment has cumbersome operation and affects the work efficiency when fixing the pipeline.

[0005] To achieve the above-mentioned purpose, the utility model proposes a pipeline welding auxiliary device, comprising an annular mounting plate, a plurality of scissor-type telescopic mechanisms and a telescopic drive mechanism for driving the synchronous telescopic activities of the scissor-type telescopic mechanisms, wherein the plurality of scissor-type telescopic mechanisms are arranged on the inner wall of the annular mounting plate at intervals along the circumference of the annular mounting plate, the telescopic direction of each of the scissor-type telescopic mechanisms is a direction approaching or moving away from the axis of the annular mounting plate, and a clamping portion is connected to the free end of each of the scissor-type telescopic mechanisms; and the telescopic drive mechanism is respectively connected to the scissor-type telescopic mechanisms.

[0006] According to some embodiments of the utility model, two connecting rods located at the transmission ends of the scissors-type telescopic mechanism in the scissors-type telescopic mechanism are respectively connected to movable seats, and the telescopic drive mechanism includes a plurality of transmission parts, and the number of the transmission parts is the same as that of the scissors-type telescopic mechanisms and are configured one-to-one, and the transmission parts are connected to the corresponding two movable seats and can make the two movable seats move closer to or away from each other.

[0007] According to some embodiments of the utility model, the transmission part includes a bidirectional threaded rod rotatably mounted on the inner wall of the annular mounting plate, the bidirectional threaded rod having a first thread segment and a second thread segment with opposite rotation directions, the axis of the bidirectional threaded rod is parallel to the axis of the annular mounting plate, and the two movable seats are respectively screwed on the first thread segment and the second thread segment.

[0008] According to some embodiments of the present invention, the driving mechanism further comprises an annular rack rotatably mounted on the annular mounting plate, and the annular rack is respectively meshed with each of the bidirectional threaded rods.

[0009] According to some embodiments of the present utility model, a guiding structure for guiding the movable seat is provided on the annular mounting plate.

[0010] According to some embodiments of the present utility model, the clamping surface of the clamping portion is an arc-shaped surface.

[0011] According to some embodiments of the present utility model, a clamping surface of the clamping portion is provided with a rubber pad.

[0012] According to some embodiments of the present invention, the annular mounting plate is connected to a rotation drive mechanism for driving the annular mounting plate to rotate around its own axis.

[0013] According to some embodiments of the utility model, a base is provided at the bottom of the annular mounting plate, and a rolling body is provided between the annular mounting plate and the base.

[0014] The utility model has at least the following beneficial effects:

[0015] In the utility model, when the pipe to be welded is placed in the annular mounting plate, the telescopic drive mechanism is operated to drive the multiple scissor-type telescopic mechanisms to telescope and move the clamping part to achieve clamping and fixing of the pipe to be welded. Compared with the existing pipe welding auxiliary device, which still needs to operate multiple fasteners separately during operation, the present solution can directly and synchronously drive multiple scissor-type telescopic mechanisms, simplifying the operation steps and time, and improving construction efficiency.

[0016] Secondly, by using a plurality of the scissor-type telescopic mechanisms spaced apart on the inner wall of the annular mounting plate to clamp and fix the pipe to be welded, pipes of different diameters can be clamped and fixed during their movable travel, thus having good practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] 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.

[0018] Figure 1 A schematic diagram of the structure of a pipeline welding auxiliary device provided by an embodiment of the utility model;

[0019] Figure 2 for Figure 1 A cross-sectional schematic diagram of a pipeline welding auxiliary device;

[0020] Figure 3 for Figure 2 A local enlarged schematic diagram of point A in the middle.

[0021] Description of reference numerals:

[0022] 100- pipeline welding auxiliary device; 1- annular mounting plate; 11- mounting groove; 2- scissor-type telescopic mechanism; 21- clamping part; 211- rubber pad; 22- connecting rod; 3- telescopic driving mechanism; 31- transmission part; 311- bidirectional threaded rod; 32- annular rack; 4- base; 5- rolling body; 6- slide groove; 7- movable seat. DETAILED DESCRIPTION

[0023] 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.

[0024] 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.

[0025] 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.

[0026] At present, the existing pipeline welding auxiliary equipment fixes the pipeline by means of multiple fasteners cooperating with each other. During the fixing process, multiple fasteners need to be operated separately, which makes the fixing process more complicated and affects the construction efficiency.

[0027] In view of this, the utility model provides a pipeline welding auxiliary device. Figure 1-Figure 3 The utility model provides a specific embodiment of the pipeline welding auxiliary device.

[0028] like Figure 1 and Figure 2 As shown, an embodiment of the utility model provides a pipeline welding auxiliary device, including an annular mounting plate 1, a plurality of scissor-type telescopic mechanisms 2 and a telescopic driving mechanism 3 for driving each of the scissor-type telescopic mechanisms 2 to synchronously telescope and extend, wherein the plurality of scissor-type telescopic mechanisms 2 are arranged on the inner wall of the annular mounting plate 1 at intervals along the circumference of the annular mounting plate 1, and the telescopic direction of each of the scissor-type telescopic mechanisms 2 is a direction approaching or moving away from the axis of the annular mounting plate 1, and a clamping portion 21 is connected to the free end of each of the scissor-type telescopic mechanisms 2, and the telescopic driving mechanism 3 is respectively drivingly connected to the fixed end of each of the scissor-type telescopic mechanisms 2.

[0029] In the embodiment provided by the utility model, the telescopic drive mechanism 3 drives multiple scissor-type telescopic mechanisms 2 to extend outward at the same time to clamp the pipe at the same time, with good clamping effect and simple operation, which can improve the subsequent welding efficiency. After welding is completed, the multiple scissor-type telescopic mechanisms 2 are driven to retract inward at the same time to achieve reset to clamp other pipes for welding assistance. It is worth mentioning that it is best for multiple scissor-type telescopic mechanisms 2 to be distributed in an array at intervals, so that the pipe to be welded can be balanced in force and not prone to positional offset and deformation. In one embodiment, the number of scissor-type telescopic mechanisms 2 is not less than 4 to ensure stable clamping of the pipe.

[0030] In addition, the plurality of scissor-type telescopic mechanisms 2 arranged on the inner side of the annular mounting plate 1 through the spacer ring can clamp and fix the pipe to be welded, and can clamp and fix pipes of different diameters during their movable stroke, which has good practicality.

[0031] Furthermore, when manually welding the pipeline, there is often a difference between the welding position and the position of the construction personnel, and when the construction personnel change their positions, there is a situation where the construction site is small and limited, causing welding difficulties. In one embodiment, the annular mounting plate 1 is connected to a rotating drive mechanism for driving it to rotate around its own axis. When it is necessary to weld a pipeline around, the annular mounting plate 1 can be driven by the rotating drive mechanism to adjust the welding position around its axis, so as to achieve the effect of moving the pipe without moving the person, so that it is no longer necessary to bend the welding rod to weld the weld during welding, ensuring that the weld is full, flat, accurate and continuous, thereby ensuring the welding quality. It should be noted that the rotation form of the annular mounting plate 1 is not specifically limited, for example, it can be through bearings, rotating shafts, etc., and the rotating drive mechanism is not specifically limited, and it can be through motors, hydraulic cylinders, and pneumatic cylinders, etc.

[0032] Specifically, the two connecting rods 22 located at the transmission end of the scissor-type telescopic mechanism 2 in the scissor-type telescopic mechanism 2 are respectively connected to the movable seat 7, and the telescopic drive mechanism 3 includes a plurality of transmission parts 31, and the transmission parts 31 are the same in number as the scissor-type telescopic mechanism 2 and are configured one by one. The transmission parts 31 are connected to the corresponding two movable seats 7 and can make the two movable seats 7 move closer to or away from each other. In this way, the transmission part 31 can drive the two movable seats 7 to move closer to or away from each other, so as to drive the ends of the two connecting rods connected thereto to move closer to or away from each other, and then adjust the cross angle to achieve telescopic movement, and then drive the clamping part 21 to move telescopically to clamp the pipe. It should be noted that the specific form of the transmission part 31 is not specific, and can be a one-way push or a two-way push form.

[0033] In one embodiment, the transmission part 31 includes a bidirectional threaded rod 311 rotatably mounted on the inner wall of the annular mounting plate 1, the bidirectional threaded rod 311 has a first thread segment and a second thread segment with opposite rotation directions, the axis of the bidirectional threaded rod 311 is parallel to the axis of the annular mounting plate 1, and the two movable seats 7 are respectively screwed to the first thread segment and the second thread segment. Because the first thread segment and the second thread segment have opposite rotation directions, when the bidirectional threaded rod 311 is rotated forward or reversed, the two movable seats 7 are driven to move closer to or away from each other, thereby realizing the telescopic movement of the scissor-type telescopic mechanism 2, and then realizing the clamping of the pipe.

[0034] In order to ensure that each of the scissor-type telescopic mechanisms 2 can be driven to move at the same time, in one embodiment, the driving mechanism further includes an annular rack 32 rotatably mounted on the annular mounting plate 1, and the annular rack 32 is respectively engaged with each of the bidirectional threaded rods 311. In this way, by rotating the annular rack 32 clockwise or counterclockwise, each of the bidirectional threaded rods 311 can be rotated forward or reversed, thereby achieving the function of clamping or unlocking the pipe.

[0035] Preferably, the annular rack is coaxially arranged with the annular mounting plate.

[0036] In one embodiment, a guiding structure for guiding the movable seat 7 is provided on the annular mounting plate 1 .

[0037] Specifically, the guide structure includes a plurality of mounting grooves 11 corresponding to each of the transmission parts 31 and arranged on the inner wall of the annular mounting plate 1. Each of the movable seats 7 is movably arranged in the mounting groove 11. The mounting groove 11 provides a guiding effect for the movable seat and does not occupy the pipeline installation space, thereby improving space utilization and facilitating subsequent welding processes.

[0038] Specifically, considering that the outer contour of the pipe is an arc, in order to increase the contact area of ​​the clamping portion 21 during clamping, in one embodiment, the clamping surface of the clamping portion 21 is arranged in an arc shape.

[0039] Specifically, in order to improve the clamping stability, in one embodiment, the clamping surface of the clamping portion 21 is provided with a rubber pad 211, which increases the friction force after contact, making the clamping more secure and more conducive to the welding process after the clamping is completed.

[0040] In order to provide the annular mounting plate 1 with a rotation condition, in one embodiment, a base 4 is provided at the bottom of the annular mounting plate 1, and a rolling body 5 is provided between the annular mounting plate 1 and the base 4. The rolling body 5 can play the role of supporting and rotating the annular mounting plate 1, and can also avoid direct contact between the annular mounting plate 1 and the base 4, and avoid the situation where the friction affects the rotation efficiency and the wear device exists. In order to provide sufficient installation space for the rolling body 5 and not affect the relative rotation between the annular mounting plate 1 and the base 4, a slide groove 6 is formed between the annular mounting plate 1 and the base 4, and the rolling body 5 is movably arranged in the slide groove 6. It can be understood that the rolling body 5 is not specifically limited and can be in the form of a ball, a roller, etc. In order to manually operate the rotation of the annular mounting plate 1, in one embodiment, a plurality of handles are provided on the outer wall of the annular mounting plate 1 along the circumferential direction. Similarly, a plurality of handles are also provided on the outer wall of the annular rack 32 along the circumferential direction.

[0041] 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 pipeline welding auxiliary device, characterized in that: include: Ring mounting plate; A plurality of scissor-type telescopic mechanisms are arranged on the inner wall of the annular mounting plate at intervals along the circumferential direction of the annular mounting plate, the telescopic direction of each of the scissor-type telescopic mechanisms is a direction close to or away from the axis of the annular mounting plate, and a clamping portion is connected to the free end of each of the scissor-type telescopic mechanisms; and, A telescopic driving mechanism is used for driving each of the scissor-type telescopic mechanisms to synchronously telescope, and the telescopic driving mechanism is drivingly connected to each of the scissor-type telescopic mechanisms respectively.

2. The pipeline welding auxiliary device according to claim 1, characterized in that: The two connecting rods located at the transmission end of the scissor-type telescopic mechanism in the scissor-type telescopic mechanism are respectively connected to movable seats, and the telescopic drive mechanism includes a plurality of transmission parts, the number of the transmission parts is the same as that of the scissor-type telescopic mechanism and they are configured in a one-to-one correspondence, and the transmission parts are connected to the corresponding two movable seats and can make the two movable seats move closer to or away from each other.

3. The pipeline welding auxiliary device according to claim 2, characterized in that: The transmission part includes a bidirectional threaded rod rotatably mounted on the inner wall of the annular mounting plate, the bidirectional threaded rod having a first thread segment and a second thread segment with opposite rotation directions, the axis of the bidirectional threaded rod is parallel to the axis of the annular mounting plate, and the two movable seats are respectively screwed on the first thread segment and the second thread segment.

4. The pipeline welding auxiliary device according to claim 3, characterized in that: The driving mechanism also includes an annular rack rotatably mounted on the annular mounting plate, and the annular rack is respectively meshed with each of the bidirectional threaded rods.

5. The pipeline welding auxiliary device according to claim 3, characterized in that: The annular mounting plate is provided with a guiding structure for guiding the movable seat.

6. The pipeline welding auxiliary device according to claim 1, characterized in that: The clamping surface of the clamping portion is an arc-shaped surface.

7. The pipeline welding auxiliary device according to claim 1, characterized in that: The clamping surface of the clamping part is provided with a rubber pad.

8. The pipeline welding auxiliary device according to claim 1, characterized in that: The annular mounting plate is connected with a rotation driving mechanism for driving the annular mounting plate to rotate around its own axis.

9. The pipeline welding auxiliary device according to claim 1, characterized in that: A base is provided at the bottom of the annular mounting plate, and a rolling body is provided between the annular mounting plate and the base.

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