Centering mechanism for pipeline welding production line

Abstract

The invention relates to the technical field of welding, in particular to a pipeline welding production line centering mechanism which comprises a bearing assembly and a centering assembly. The supporting assemblies move on the base in the opposite directions, and each supporting assembly comprises a bottom plate and a vertical plate integrally formed on the bottom plate; the pipe fixing assembly is used for carrying out vertical height adjustment on the vertical plate, the pipe fixing assembly comprises a fixing column, a first fixing block is connected to the outer wall of the fixing column in a threaded mode, and a supporting rod is hinged to the outer wall of the first fixing block; according to the centering mechanism, before the pipelines are welded, the two pipelines can be internally supported and fixed firstly, centering operation is achieved after fixing is completed, and in order to facilitate welding of operators, after the pipelines are fixed, the heights of the pipelines are decreased, the gravity center is lowered, so that the safety of the operators is guaranteed, and meanwhile the safety of the operators is guaranteed. And an operator can sit to finish welding operation, so that the labor intensity of the operator is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of welding, in particular to a centering mechanism for a pipeline welding production line. Background Art

[0002] During the use of pipelines, most of them need to be welded according to the needs of on-site use to meet practical applications. Welding can achieve permanent connection between metal pipes. It melts the contact surface of the two pipes by heating and pressurizing, thereby forming a strong connection after cooling. Compared with other connection methods (such as bolting or bonding), welding has higher strength and sealing, can withstand greater pressure and temperature changes, and is suitable for various industrial and engineering applications. The application range of welding technology is very wide, including but not limited to manufacturing industries such as ships, automobiles, and construction, as well as related service industries.

[0003] During the welding process, alignment is a crucial step because it ensures the uniformity and quality of the welded joint. If the pipe docking is inaccurate, it may lead to uneven welding, which in turn may cause welding defects such as lack of fusion, lack of penetration, and porosity. These defects will seriously affect the strength and sealing of the pipeline, and may even cause pipeline leakage or rupture, affecting the safe operation of the entire system. Therefore, alignment not only ensures the beauty of welding, but more importantly, it ensures the quality and safety of the welded structure. Summary of the invention

[0004] In view of the problems existing in the prior art, the present invention is proposed.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions: a pipeline welding production line centering mechanism, including a bearing component, including a base; and a supporting component that moves toward each other on the base, including a bottom plate and a vertical plate integrally formed on the bottom plate; and a fixed pipe component for vertically adjusting the height on the vertical plate.

[0006] As a preferred solution of the centering mechanism of the pipeline welding production line of the present invention, the fixed pipe assembly includes a fixed column, a first fixed block is screwed on the outer wall of the fixed column, and a support rod is hinged on the outer wall of the first fixed block; a control block is movably sleeved on the outer wall of the fixed column, and a transmission member is arranged on the control block.

[0007] As a preferred solution of the centering mechanism of the pipeline welding production line described in the present invention, the transmission member includes a sleeve hinged to the control block, and a connecting rod is movably provided in the sleeve, an elastic member is sleeved on the outer wall of the connecting rod, and the fixed pipe assembly also includes a support block.

[0008] As a preferred solution of the centering mechanism of the pipeline welding production line of the present invention, wherein: the connecting rod is hinged to the support block at one end away from the sleeve, the outer wall of the support block is screwed to the limiting plate, and the support rod is hinged to the support block at one end away from the first fixed block.

[0009] As a preferred solution of the centering mechanism of the pipeline welding production line described in the present invention, the end face of the fixed column is hinged with a supporting cylinder, the end face of the control block is provided with a push rod, and one end of the push rod extends into the supporting cylinder and is provided with a first rotating column, a rotating cylinder is rotatably arranged in the supporting cylinder, and the inner wall of the rotating cylinder is provided with a transmission groove movably connected to the first rotating column.

[0010] As a preferred solution of the centering mechanism of the pipeline welding production line described in the present invention, the outer wall of the vertical plate is provided with a height groove, and a spring block is symmetrically arranged on one side of the inner wall of the height groove, the support tube is slidably connected to the height groove, and a limiting through hole movably connected to the spring block is penetrated through the outer wall of the support tube.

[0011] As a preferred solution of the centering mechanism of the pipeline welding production line described in the present invention, the outer wall of the rotating drum is provided with a knocking plate, and the outer wall of the knocking plate has a circular array with a plurality of centrifugal plates hinged to the knocking plate at one end, and a tension spring is provided between the centrifugal plate and the outer wall of the knocking plate.

[0012] As a preferred solution of the centering mechanism of the pipeline welding production line described in the present invention, the outer wall of the fixed column is also screwed with a second fixed block, the outer wall of the first fixed block is rotatably provided with a support rod, and the outer wall of the support rod is provided with a second rotating column, and the end face of the control block is provided with a positioning groove movably connected to the second rotating column.

[0013] As a preferred solution of the centering mechanism of the pipeline welding production line of the present invention, the positioning groove includes a first limiting groove and a second limiting groove which are interconnected, and a clamping groove is provided at the connection between the first limiting groove and the second limiting groove.

[0014] As a preferred solution of the centering mechanism of the pipeline welding production line described in the present invention, wherein: a sliding rod and a bidirectional lead screw are respectively arranged in the base, a motor is arranged on the outer wall of the base, and the output end of the motor is connected to the bidirectional lead screw; the end surface of the base plate is provided with a connecting sleeve that is slidably matched with the sliding rod, and the end surface of the base plate is also provided with a nut that is threadedly matched with the bidirectional lead screw.

[0015] Beneficial effects of the present invention: The centering mechanism provided by the present invention can first perform internal support and fixation on the two pipes before welding the pipes. Once the fixation is completed, the centering operation is realized. In order to facilitate the welding of the operators, the height of the pipes will drop after being fixed. While lowering the center of gravity to ensure the safety of the operators, the operators can also complete the welding operation while sitting or standing, thereby reducing the labor intensity of the operators. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. Among them:

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0018] Figure 2 It is a schematic diagram of the supporting component structure in the present invention.

[0019] Figure 3 It is a schematic diagram of the structure of the support component and the fixed pipe component in the present invention.

[0020] Figure 4 It is a schematic diagram of the structure of the fixed pipe assembly in the present invention.

[0021] Figure 5 It is a schematic diagram of the structure of the knocking plate in the present invention.

[0022] Figure 6 It is an enlarged schematic diagram of the first fixing block structure and some structures in the present invention.

[0023] In the figure: 100, bearing assembly; 101, base; 101a, slide rod; 101b, bidirectional screw; 102, motor; 200, support assembly; 201, bottom plate; 201a, connecting sleeve; 202, vertical plate; 202a, height slot; 202b, spring block; 300, fixed pipe assembly; 301, fixed column; 301a, first fixed block; 301a-1, support rod; 301b, second fixed block; 301b-1, first limit Positioning slot; 301b-2, second limiting slot; 301b-3, card slot; 302, control block; 302a, transmission member; 302a-1, sleeve; 302a-2, connecting rod; 302a-3, elastic member; 303, support block; 303a, limiting plate; 304, supporting cylinder; 304a, limiting through hole; 304b, rotating cylinder; 304b-1, transmission slot; 305, knocking plate; 305a, centrifugal piece; 305a-1, tension spring. DETAILED DESCRIPTION

[0024] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0025] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0026] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0027] Example 1, reference Figures 1 to 6 , which is the first embodiment of the present invention, provides a centering mechanism for a pipeline welding production line, which completes the fixing or centering operation by applying pressure to the pipeline itself.

[0028] Specifically, it includes a bearing assembly 100, including a base 101; and a support assembly 200 moving toward each other on the base 101, including a bottom plate 201 and a vertical plate 202 integrally formed on the bottom plate 201; and a fixed pipe assembly 300 for vertical height adjustment on the vertical plate 202. Only after welding is completed and two pipes are welded into one pipe, the support assembly 200 can be controlled to move away from each other, so that the pipe can be pulled out of the fixed pipe assembly 300.

[0029] Preferably, the fixed pipe assembly 300 includes a fixed column 301, a first fixed block 301a is screwed on the outer wall of the fixed column 301, and a support rod 301a-1 is hinged on the outer wall of the first fixed block 301a; a control block 302 is movably sleeved on the outer wall of the fixed column 301, and a transmission member 302a is provided on the control block 302. When the control block 302 gradually approaches the first fixed block 301a, with the support of the transmission member 302a and the support rod 301a-1, each support block 303 will move away from each other and spread out, thereby completing the internal support of the pipeline.

[0030] The transmission member 302a includes a sleeve 302a-1 hinged to the control block 302, and a connecting rod 302a-2 is movably arranged in the sleeve 302a-1, and an elastic member 302a-3 is sleeved on the outer wall of the connecting rod 302a-2. The fixed pipe assembly 300 also includes a support block 303. The elastic member 302a-3 is a compression spring. When the connecting rod 302a-2 is displaced in the sleeve 302a-1, the elastic member 302a-3 will begin to be stressed, thereby providing a certain buffer.

[0031] The connecting rod 302a-2 is hinged to the support block 303 at one end away from the sleeve 302a-1, the outer wall of the support block 303 is screwed to the limit plate 303a, and the support rod 301a-1 is hinged to the support block 303 at one end away from the first fixed block 301a. In this embodiment, there are three support blocks 303, and each support block 303 is provided with a limit plate 303a. The outer surface of the support block 303 is made of rubber material, so that the support block 303 can be deformed to a certain extent due to its own structural characteristics, so that there is also a certain friction between the support block 303 and the inner wall of the pipe, which prevents the support block 303 from sliding the pipe during the clamping process.

[0032] In summary, before welding, the pipe can be inserted into the support block 303 so that the pipe contacts the limit plate 303a on one of the support blocks 303. During the pipe insertion process, one of the support blocks 303 will be pushed, thereby causing the control block 302 to move through the support rod 301a-1 and the transmission member 302a, gradually approaching the first fixed block 301a.

[0033] During this process, each transmission member 302a will be displaced, so that each support block 303 will form an expansion movement to support the inner wall of the pipeline. After each support block 303 has been displaced to a certain extent, it can be locked, thereby completing the fixation of the pipeline. Similarly, the fixation of another pipeline is completed.

[0034] It should be noted here that before the pipeline is fixed, since the pipeline is in contact with one of its support blocks 303, the pipeline is not displaced on the same axis as the control block 302 before being fixed. After the pipeline is fixed, the support blocks 303 will jointly complete the fixation of the pipeline, so that the pipeline is concentric with the control block 302. When the two pipelines are fixed, the centering operation of the two pipelines is completed.

[0035] Example 2, reference Figures 1 to 6 , which is the second embodiment of the present invention, is different from the previous embodiment in that it provides a method for lowering the center of gravity of the pipeline after it is fixed, thereby improving welding safety and making it easier for operators to perform welding.

[0036] Specifically, the end surface of the fixed column 301 is hinged with a support cylinder 304, the end surface of the control block 302 is provided with a push rod, and one end of the push rod extends into the support cylinder 304 and is provided with a first rotating column, a rotating cylinder 304b is rotatably provided in the support cylinder 304, and a transmission groove 304b-1 movably connected to the first rotating column is opened on the inner wall of the rotating cylinder 304b. The movement of the push rod is synchronized with the movement of the control block 302, and the push rod can only be displaced but not rotated, and the support cylinder 304 will limit the rotation of the push rod (not described here, as it has been fully documented in the prior art).

[0037] The outer wall of the vertical plate 202 is provided with a height groove 202a, and a spring block 202b is symmetrically arranged on one side of the inner wall of the height groove 202a. The support tube 304 is slidably connected to the height groove 202a, and a limiting through hole 304a movably connected to the spring block 202b is penetrated through the outer wall of the support tube 304. Before the pipeline is fixed, the support tube 304 is located at the highest point of the height groove 202a. At this time, the spring block 202b is located in the limiting channel 304a, which is used to fix the height of the support tube 304. After the spring block 202b is pressed, the spring block 202b will move to the inside of the height groove 202a and have a certain reset effect (since the prior art has been fully recorded, it will not be described in detail here).

[0038] It should be noted that a second elastic member is also provided in the height groove 202a, which is used to provide a certain buffer during the displacement of the support tube 304. Even if the spring piece 202b is separated from the limiting channel 304a, if no pipe is installed on the fixed column 301, the weight of the support tube 304 itself cannot cause the second elastic member to deform.

[0039] The outer wall of the rotating drum 304b is provided with a knocking plate 305, and the outer wall of the knocking plate 305 has a plurality of centrifugal pieces 305a whose one end is hinged to the knocking plate 305 in a circumferential array, and a tension spring 305a-1 is provided between the centrifugal piece 305a and the outer wall of the knocking plate 305. If the knocking plate 305 rotates, one end of the centrifugal piece 305 will rotate away from the outer wall of the knocking plate 305, and when the centrifugal piece 305 rotates, the tension spring 305a-1 will also be stressed, so that the centrifugal piece 305 can be reset when the knocking plate 305 stops rotating.

[0040] In summary, before welding, the pipe can be inserted into the support block 303 so that the pipe contacts the limit plate 303a on one of the support blocks 303. During the pipe insertion process, one of the support blocks 303 will be pushed, thereby causing the control block 302 to move through the support rod 301a-1 and the transmission member 302a, gradually approaching the first fixed block 301a.

[0041] During this process, each transmission member 302a will be displaced, so that each support block 303 will form an expansion movement to support the inner wall of the pipeline. After each support block 303 has been displaced to a certain extent, it can be locked, thereby completing the fixation of the pipeline. Similarly, the fixation of another pipeline is completed.

[0042] In the above process, due to the displacement of the control block 302, the control block 302 will gradually allow the push rod to enter the rotating drum 304b, and at this time, the first rotating column will also cooperate with the transmission groove 304b-1, so that the rotating drum 304b rotates, thereby driving the knocking plate 305 to rotate. The knocking plate 305 during the rotation process will deflect the centrifugal piece 305a through rotation, thereby knocking the bullet 202b, so that the bullet 202b is separated from the limiting through hole 304a.

[0043] Affected by the gravity of the pipeline itself, when the elastic block 202b is separated from the limiting channel 304a, the support tube 304 will move in the height slot 202a, so that the overall height of the pipeline moves down. This not only ensures the welding efficiency and safety of the pipeline, but also makes room for the installation of another pipeline.

[0044] Example 3, reference Figures 1 to 6 , which is the third embodiment of the present invention, is different from the previous embodiment in that a method is provided in which the control block 302 is positioned during displacement after the pipe is fixed.

[0045] Specifically, the outer wall of the fixed column 301 is also screwed with a second fixed block 301b, the outer wall of the first fixed block 301a is rotatably provided with a support rod 301a-1, and the outer wall of the support rod 301a-1 is provided with a second rotating column, and the end surface of the control block 304 is provided with a positioning groove movably connected to the second rotating column. The positioning groove is in the shape of a "U" character, and the second rotating column can be displaced in the positioning groove without leaving the positioning groove.

[0046] The positioning groove includes a first limiting groove 301b-1 and a second limiting groove 301b-2 which are connected to each other, and a clamping groove 301b-3 is provided at the connection between the first limiting groove 301b-1 and the second limiting groove 301b-2. When the second rotating column is located in each clamping groove 301b-3, the support rod 301a-1 will locate the position of the control block 304.

[0047] A sliding rod 101a and a bidirectional lead screw 101b are respectively arranged in the base 101, a motor 102 is arranged on the outer wall of the base 101, and the output end of the motor 102 is connected to the bidirectional lead screw 101b; a connecting sleeve 201a that is slidably matched with the sliding rod 101a is arranged on the end surface of the bottom plate 201, and a nut that is threadedly matched with the bidirectional lead screw 101b is also arranged on the end surface of the bottom plate 201.

[0048] It should be noted that when the welded pipe needs to be disassembled, the output end of the motor 102 can be controlled to rotate, so that the bidirectional lead screw 101b rotates. The rotating bidirectional lead screw 101b will move the two support components 200 away from each other under the cooperation of the slide bar 101a and the connecting sleeve 201a, and the pipe disassembly work can be completed at this time.

[0049] Importantly, it should be noted that the construction and arrangement of the present application shown in a plurality of different exemplary embodiments are only exemplary. Although only a few embodiments are described in detail in this disclosure, it should be readily understood by those who refer to this disclosure that many modifications are possible (e.g., the size, scale, structure, shape and proportion of various elements, and parameter values ​​(e.g., temperature, pressure, etc.), installation arrangement, use of materials, color, directional changes, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in the application. For example, the element shown as integrally formed can be composed of multiple parts or elements, the position of the element can be inverted or otherwise changed, and the nature or number or position of the discrete element can be changed or changed. Therefore, all such modifications are intended to be included in the scope of the present invention. The order or sequence of any process or method steps can be changed or reordered according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure of performing the function described herein, and is not only structurally equivalent but also equivalent structure. Without departing from the scope of the present invention, other replacements, modifications, changes and omissions can be made in the design, operating conditions and arrangement of the exemplary embodiments. Therefore, the invention is not limited to a specific embodiment, but extends to numerous modifications still falling within the scope of the appended claims.

[0050] Additionally, in order to provide a concise description of exemplary embodiments, all features of an actual embodiment (ie, those features that are not relevant to the best mode presently contemplated for carrying out the invention or those that are not relevant to implementing the invention) may not be described.

[0051] It will be appreciated that in the development of any actual implementation, as in any engineering or design project, numerous implementation-specific decisions may be made. Such a development effort may be complex and time-consuming, but will be a routine task of design, fabrication, and production for those of ordinary skill having the benefit of this disclosure without undue experimentation.

[0052] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A centering mechanism for a pipeline welding production line, Features: include, The bearing assembly (100) comprises a base (101); and A supporting assembly (200) moving toward each other on the base (101), comprising a bottom plate (201) and a vertical plate (202) integrally formed on the bottom plate (201); and, A fixed pipe assembly (300) is provided on the vertical plate (202) for adjusting the vertical height.

2. The pipeline welding production line centering mechanism according to claim 1, Features: The fixed pipe assembly (300) comprises a fixed column (301), a first fixed block (301a) being screwed on the outer wall of the fixed column (301), and a support rod (301a-1) being hinged on the outer wall of the first fixed block (301a); a control block (302) is movably sleeved on the outer wall of the fixed column (301), and a transmission member (302a) is provided on the control block (302).

3. The pipeline welding production line centering mechanism according to claim 2, Features: The transmission member (302a) includes a sleeve (302a-1) hinged to the control block (302), a connecting rod (302a-2) is movably arranged in the sleeve (302a-1), an elastic member (302a-3) is sleeved on the outer wall of the connecting rod (302a-2), and the fixed pipe assembly (300) also includes a support block (303).

4. The centering mechanism for the pipeline welding production line according to claim 3, Features: The connecting rod (302a-2) is hinged to the support block (303) at one end away from the sleeve (302a-1), the outer wall of the support block (303) is screwed to the limiting plate (303a), and the supporting rod (301a-1) is hinged to the support block (303) at one end away from the first fixed block (301a).

5. The pipeline welding production line centering mechanism according to claim 4, Features: The end face of the fixed column (301) is hinged with a support cylinder (304), the end face of the control block (302) is provided with a push rod, and one end of the push rod extends into the support cylinder (304) and is provided with a first rotating column, a rotating cylinder (304b) is rotatably provided in the support cylinder (304), and the inner wall of the rotating cylinder (304b) is provided with a transmission groove (304b-1) movably connected to the first rotating column.

6. The centering mechanism for the pipeline welding production line according to claim 5, Features: The outer wall of the vertical plate (202) is provided with a height groove (202a), and a spring block (202b) is symmetrically arranged on one side of the inner wall of the height groove (202a); the support tube (304) is slidably connected to the height groove (202a), and a limiting through hole (304a) movably connected to the spring block (202b) is penetrated through the outer wall of the support tube (304).

7. The centering mechanism for the pipeline welding production line according to claim 6, Features: The outer wall of the rotating drum (304b) is sleeved with a knocking plate (305), and the outer wall of the knocking plate (305) has a plurality of centrifugal pieces (305a) in a circumferential array, one end of which is hinged to the knocking plate (305), and a tension spring (305a-1) is provided between the centrifugal piece (305a) and the outer wall of the knocking plate (305).

8. The centering mechanism for the pipeline welding production line according to claim 4, Features: The outer wall of the fixed column (301) is also screwed with a second fixed block (301b), the outer wall of the first fixed block (301a) is rotatably provided with a support rod (301a-1), and the outer wall of the support rod (301a-1) is provided with a second rotating column, and the end surface of the control block (302) is provided with a positioning groove movably connected to the second rotating column.

9. The centering mechanism for the pipeline welding production line according to claim 8, Features: The positioning groove comprises a first limiting groove (301b-1) and a second limiting groove (301b-2) which are connected to each other, and a clamping groove (301b-3) is provided at the connection between the first limiting groove (301b-1) and the second limiting groove (301b-2).

10. The centering mechanism for a pipeline welding production line according to claim 1, Features: A sliding rod (101a) and a bidirectional lead screw (101b) are respectively arranged in the base (101); a motor (102) is arranged on the outer wall of the base (101), and the output end of the motor (102) is connected to the bidirectional lead screw (101b); the end surface of the bottom plate (201) is provided with a connecting sleeve (201a) that is slidably matched with the sliding rod (101a), and the end surface of the bottom plate (201) is also provided with a nut that is threadedly matched with the bidirectional lead screw (101b).

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