Auxiliary tool for pipeline welding

Abstract

The utility model relates to the field of pipeline positioning, in particular to an auxiliary tool for pipeline welding, which comprises a driving mechanism, the driving mechanism is connected with a first moving device and a second moving device, and the driving mechanism is used for driving the first moving device and the second moving device to get close to each other or get away from each other. The folding device further comprises a plurality of connecting rod folding mechanisms, one end of each connecting rod folding mechanism is hinged to the first moving device, the other end of each connecting rod folding mechanism is hinged to the second moving device, and when the first moving device and the second moving device get close to each other, the connecting rod folding mechanisms are folded in the direction close to the driving mechanism. When the first moving device and the second moving device are away from each other, the connecting rod folding mechanism is unfolded in the direction away from the driving mechanism.

Description

TECHNICAL FIELD

[0001] The utility model relates to pipeline positioning technical field, especially a kind of auxiliary tool for pipeline welding. BACKGROUND

[0002] With the continuous development of industry, the demand of pipeline in various industries is increasing, and the pressure of conveying medium is also increasing, which puts higher requirements on the quality of pipeline, especially the welding quality. At present, in most cases, the welding between pipeline and case still adopts manual calibration mode, especially when the medium in the case needs to be conveyed to other devices through the pipeline, the traditional welding mode usually needs multiple people to cooperate. One person manually fixes the pipeline to the welding position, and the other person operates the welding gun to weld. However, this way not only has low welding efficiency, but also if the person fixing the pipeline shakes hands, it is easy to cause welding position deviation, thereby affecting the welding quality, and even may cause leakage or unstable structure problem. SUMMARY

[0003] The utility model aims at: the traditional way of prior art completes the positioning and welding of pipeline by artificial, not only needs multiple people to cooperate, and in the process of cooperation, pipeline is difficult to be welded in the initially set welding position, thereby affecting the welding quality and easily causing the problem that pipeline is not stable after welding. The utility model provides a kind of auxiliary tool for pipeline welding.

[0004] In order to achieve the above purpose, the utility model adopts the technical scheme that:

[0005] A kind of auxiliary tool for pipeline welding, including drive mechanism, the drive mechanism is connected with first mobile device and second mobile device, the drive mechanism is used to drive the first mobile device and the second mobile device mutually close or far away from each other;

[0006] Further comprising several connecting rod folding mechanisms, each connecting rod folding mechanism is hinged to the first mobile device at one end and hinged to the second mobile device at the other end;

[0007] When the first mobile device and the second mobile device are close to each other, the connecting rod folding mechanism is folded towards the direction close to the drive mechanism;

[0008] When the first mobile device and the second mobile device are far away from each other, the connecting rod folding mechanism is unfolded towards the direction away from the drive mechanism.

[0009] The present application is used for welding pipeline and case, by setting welding hole on the case, the case and the pipeline are communicated through the welding hole.

[0010] The utility model discloses a kind of auxiliary tool for pipeline welding, by connecting first moving device and second moving device on driving mechanism, first moving device and second moving device are realized by driving mechanism Mutual approach and mutual departure, and by connecting rod folding mechanism, first moving device and second moving device are connected into a whole, when first moving device and second moving device mutually approach, connecting rod folding mechanism folds, when first moving device and second moving device mutually depart, connecting rod folding mechanism unfolds, the present application can be equipped with pipeline outside positioning piece when using, then positioning piece is worn into welding hole on machine case, by driving device, first moving device and second moving device mutually depart, connecting rod folding mechanism unfolds at this time, until connecting rod folding mechanism unfolds to the abutment after self outer wall and another pipeline inner wall or welding hole inner wall on machine case, so that two pipelines or pipeline and welding hole are coaxial, without being fixed by manpower to pipeline position in the engineering of welding, improve construction efficiency, simplify operation, guarantee welding quality.

[0011] As a preferred scheme of the utility model, the first moving device is a positive toothed nut, the second moving device is a reverse toothed nut, and the driving mechanism is a positive and reverse toothed screw rod.

[0012] By setting the first moving device as a positive toothed nut and the second moving device as a reverse toothed nut, and setting the driving mechanism sleeved with the first moving device and the second moving device as a positive and reverse toothed screw rod, when the driving mechanism is screwed, the positive and reverse toothed screw rod can drive the positive toothed nut and the reverse toothed nut to mutually approach or mutually depart due to the characteristics of the positive and reverse toothed screw rod.

[0013] As a preferred scheme of the utility model, the connecting rod folding mechanism body is a three-link structure.

[0014] As a preferred scheme of the utility model, the first moving device is circumferentially provided with a first connecting arm, and the first moving device is hinged to the connecting rod folding mechanism through the first connecting arm.

[0015] The second moving device is circumferentially provided with a second connecting arm, and the second moving device is hinged to the connecting rod folding mechanism through the second connecting arm.

[0016] Through the circumferential arrangement of the first connecting arm and the second connecting arm, the connecting rod folding mechanism is uniformly stressed during unfolding and folding, the structure is stable, and the overall rigidity is improved.

[0017] As a preferred scheme of the utility model, the connecting rod folding mechanism comprises a first connecting rod, one end of the first connecting rod is hinged with a second connecting rod, and the other end of the first connecting rod is hinged with a third connecting rod.

[0018] As a preferred scheme of the utility model, one end of the second connecting rod is hinged with the first connecting rod, and the other end is hinged with the first connecting arm.

[0019] One end of the third connecting rod is hinged with the first connecting rod, and the other end is hinged with the second connecting arm.

[0020] The hinged mode between the connecting rods makes the structure more modular, facilitates disassembly, maintenance and replacement of parts, reduces equipment maintenance cost and improves use convenience.

[0021] As a preferred scheme of the utility model, the first connecting rod is arranged in parallel with the driving mechanism.

[0022] By arranging the first connecting rod in parallel with the driving mechanism, since the first moving device and the second moving device are synchronous walking, and the second connecting rod and the third connecting rod have the same length, when the connecting rod folding mechanism is unfolded, the first connecting rod still keeps the posture of being parallel with the driving mechanism until abutting against the inner wall of the welding hole of the machine case, so that the contact area between the connecting rod folding mechanism and the inner wall of the welding hole of the machine case is ensured to be large, and the stability of connection is ensured.

[0023] As a preferred scheme of the utility model, the first connecting rod comprises a vertical rod arranged in parallel with the driving mechanism, and the vertical rod is used for connecting the second connecting rod and the third connecting rod.

[0024] As a preferred scheme of the utility model, the first connecting rod further comprises a boss, the boss is located on one side of the vertical rod away from the driving mechanism, and an unloading groove is arranged at the connection position of the boss and the vertical rod.

[0025] By arranging the boss, one end of the boss can be inserted into the welding hole of the machine case during use, and after the outer wall of the vertical rod abuts against the inner wall of the welding hole, the boss can play a limiting role, so that the positioning member is prevented from sliding out of the welding hole during welding, and the problem of welding failure is caused; the unloading groove arranged at the connection position of the boss and the vertical rod can help to disperse the load, relieve local stress concentration, reduce the risk of structural fatigue, and facilitate the cleaning of burrs generated in the processing process, so as to ensure the cleanliness and smoothness of the assembly surface, avoid the interference of burrs with the movement and assembly precision of parts, and further improve the use quality and long-term reliability of the overall welded positioning member.

[0026] As a preferred scheme of the utility model, the unloading groove is in the shape of a circular arc.

[0027] As a preferred scheme of the utility model, one end of the driving mechanism is fixedly connected with a knob.

[0028] By arranging the knob, the user can conveniently operate the driving mechanism.

[0029] The knob outer surface is provided with an anti-skid part.

[0030] The anti-skid part can prevent the staff from slipping when operating the knob, improve efficiency, and ensure the use experience.

[0031] The driving mechanism is provided with a wrench groove in the middle.

[0032] In summary, due to the adoption of the above technical scheme, the utility model has the beneficial effects of:

[0033] 1、The utility model relates to an auxiliary tool for pipeline welding, first mobile device and second mobile device are sleeved on the driving mechanism, first mobile device and second mobile device are close to each other and away from each other through the driving mechanism, and first mobile device and second mobile device are connected into a whole through the connecting rod folding mechanism, when first mobile device and second mobile device are close to each other, the connecting rod folding mechanism is folded, when first mobile device and second mobile device are away from each other, the connecting rod folding mechanism is unfolded, the pipeline can be sleeved outside the auxiliary tool in use, then the auxiliary tool is worn into the welding hole on the machine box, first mobile device and second mobile device are away from each other through the driving mechanism, the connecting rod folding mechanism is unfolded at this time, until the connecting rod folding mechanism is unfolded to the self outer wall and the welding hole inner wall on the machine box abut, so that the pipeline is coaxial with the welding hole on the machine box, the pipeline position need not be fixed through manpower in the welding engineering, the construction efficiency is improved, the operation is simplified, and the welding quality is ensured. ACCURACY OF DRAWINGS

[0034] Figure 1 It is the structure schematic view of the auxiliary tool for pipeline welding of the utility model,

[0035] Figure 2 It is the isometric view of first mobile device, second mobile device and connecting rod folding mechanism of the utility model,

[0036] Figure 3 It is the isometric view of first mobile device, second mobile device and connecting rod folding mechanism of the utility model,

[0037] Figure 4 It is the structure schematic view of second mobile device of the utility model,

[0038] Figure 5 It is the structure schematic view of first mobile device of the utility model,

[0039] Figure 6 It is the structure schematic view of first connecting rod of the utility model,

[0040] Figure 7 is the first mobile device of the utility model Figure 6 the enlarged view of A place of

[0041] Figure 8 is the first mobile device of the utility model and the explosion schematic view of the connecting rod folding mechanism and the second mobile device

[0042] Figure 9 is the schematic view of the auxiliary tool for pipeline welding and the cooperation of the case of the utility model

[0043] Figure 10 is the first mobile device of the utility model Figure 9 the enlarged view of B place of

[0044] Figure 11 is the use state view of the auxiliary tool for pipeline welding and the pipeline of the utility model.

[0045] Icon: 1-driving mechanism;2-first mobile device;21-first connecting arm;211-first hinged hole;3-second mobile device;31-second connecting arm;311-third hinged hole;4-connecting rod folding mechanism;41-first connecting rod;411-second hinged hole;412-fourth hinged hole;413-vertical rod;414-convex table;415-unloading groove;42-second connecting rod;421-first swing arm;4211-first adaptation hole;4212-third adaptation hole;422-second swing arm;4221-second adaptation hole;4222-fourth adaptation hole;43-third connecting rod;431-third swing arm;4311-fifth adaptation hole;4312-seventh adaptation hole;432-fourth swing arm;4321-sixth adaptation hole;4322-eighth adaptation hole;5-knob;6-case;7-pipeline. DETAILED DESCRIPTION

[0046] The utility model will be further described in detail below in combination with specific embodiments. But this should not be understood as the range of the above-mentioned subject matter of the utility model is limited to the following embodiments, and all the technologies realized based on the content of the utility model belong to the range of the utility model.

[0047] In the description of the specific embodiments of the utility model, the orientation or position relationship of the terms such as "up", "down", "left", "right", "center", "inner" and "outer" appears without special indication. These orientation or position relationship terms are only for the convenience of describing the utility model scheme or simplifying the description in specific embodiments, for the convenience of the technical personnel to quickly understand the scheme, and are not indicative or suggestive of the specific device / component / element must have a specific orientation, or be constructed and operated in a specific position relationship, so it cannot be understood as a limitation on the utility model.

[0048] In addition, if the terms "horizontal", "vertical", "overhanging", "parallel" and the like appear, it does not mean that the corresponding device / component / element is required to be absolutely horizontal or vertical or overhanging or parallel, but can be slightly inclined or have a deviation. For example, "horizontal" only means that its direction is more horizontal relative to "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined. Alternatively, it can be simplified to understand that the corresponding device / component / element is arranged in the direction of "horizontal", "vertical", "overhanging", "parallel" and the like, and can have an error / deviation of ±10% relative to the corresponding direction, more preferably an error / deviation of ±8%, more preferably an error / deviation of ±6%, more preferably an error / deviation of ±5%, more preferably an error / deviation of ±4%. As long as the corresponding device / component / element is within the error / deviation range, it can still achieve its role in the utility model scheme.

[0049] In addition, the terms "first", "second", "third" and the like in the terms are only used to distinguish the same or similar components for description, and should not be understood as emphasizing or implying the relative importance of the specific components.

[0050] In addition, in the description of the embodiments of the utility model, "several", "a plurality of", "several" represent at least 2. It can be 2, 3, 4, 5, 6, 7, 8, 9 and the like in any case, and even more than 9.

[0051] In addition, in the description of the technical scheme of the utility model, unless otherwise specified / limited / limited, the terms "set", "install", "connect", "connect", "set", "lay", "arrange" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrally connected, which can be welding, riveting, bolting, screwing and other commonly used connection means in the art. The connection can be mechanical connection, electrical connection or communication connection; it can be directly connected, or indirectly connected through an intermediate medium, or the communication between two elements.

[0052] Embodiment 1

[0053] As shown in Figure 1 , Figure 2 and Figure 3 An auxiliary tool for pipe welding, comprising a driving mechanism 1, a first moving device 2 and a second moving device 3 are sleeved on the driving mechanism 1, the first moving device 2 is a positive toothed nut, the second moving device 3 is a reverse toothed nut, and the driving mechanism 1 is a positive and reverse toothed screw. By sleeving the positive toothed nut and the reverse toothed nut on the positive and reverse toothed screw, the positive toothed nut and the reverse toothed nut can be driven to move closer to or farther away from each other by driving the positive and reverse toothed screw.

[0054] The first moving device 2 is connected with the second moving device 3 through the connecting rod folding mechanism 4, which is a three connecting rod structure, including the second connecting rod 42 hinged with the first moving device 2, and the third connecting rod 43 hinged with the second moving device 3, and the first connecting rod 41 hinged between the second connecting rod 42 and the third connecting rod 43, through each hinge point, so that the first moving device 2 and the second moving device 3 can drive the first connecting rod 41 to move along the radial direction of the driving mechanism 1 when moving along the axial direction of the driving mechanism 1 through the second connecting rod 42 and the third connecting rod 43;

[0055] Further, the second connecting rod 42 and the third connecting rod 43 are equal in length, and the first connecting rod 41 is arranged in parallel with the driving mechanism 1, so that when the first moving device 2 and the second moving device 3 move synchronously, the second connecting rod 42 and the third connecting rod 43 can be driven to move at the same time, and the first connecting rod 41 is driven to move close to or away from the driving mechanism 1 when the second connecting rod 42 and the third connecting rod 43 move;

[0056] Further, the moving direction of the first connecting rod 41 is radial movement.

[0057] In use, the first moving device 2 and the second moving device 3 are sleeved on the driving mechanism 1, the first moving device 2 and the second moving device 3 are driven to move close to each other and move away from each other by the driving mechanism 1, and the first moving device 2 and the second moving device 3 are connected into a whole by the connecting rod folding mechanism 4, when the first moving device 2 and the second moving device 3 move close to each other, the connecting rod folding mechanism 4 is folded, when the first moving device 2 and the second moving device 3 move away from each other, the connecting rod folding mechanism 4 is unfolded, in use, the pipe 7 can be sleeved outside the auxiliary tool, and then the auxiliary tool is inserted into the welding hole on the case 6, the first moving device 2 and the second moving device 3 are driven to move away from each other by the driving mechanism 1, at this time, the connecting rod folding mechanism 4 is unfolded, until the outer wall of the connecting rod folding mechanism 4 abuts against the inner wall of the welding hole on the case 6, the pipe 7 is coaxial with the welding hole on the case 6, as shown in Figure 9 、 Figure 10 and Figure 11 .

[0058] In one or more embodiments, the first moving device 2 is circumferentially provided with at least three first connecting arms 21, and the first connecting arms 21 are used to connect the first moving device 2 and the second connecting rod 42;

[0059] Further, the end of the first connecting arm 21 away from the driving mechanism 1 is provided with a first hinge hole 211, and the second connecting rod 42 is hinged with the first connecting arm 21 through the first hinge hole 211;

[0060] Specifically, the second connecting rod 42 comprises a first swing arm 421 and a second swing arm 422, the first swing arm 421 is provided with a first matching hole 4211 matched with the first hinge hole 211, the second swing arm 422 is provided with a second matching hole 4221 matched with the first hinge hole 211, the first swing arm 421 and the second swing arm 422 can clamp the first connecting arm 21 and realize the hinge connection of the first connecting arm 21 and the second connecting rod 42 through the first matching hole 4211, the second matching hole 4221 and the first hinge hole 211;

[0061] Further, the ends of the first swing arm 421 and the second swing arm 422 not hingedly connected with the first connecting arm 21 clamp the first connecting rod 41, the first connecting rod 41 is provided with a second hinge hole 411, the first swing arm 421 is provided with a third matching hole 4212 matched with the second hinge hole 411, the second swing arm 422 is provided with a fourth matching hole 4222 matched with the second hinge hole 411 (i.e. the first swing arm 421, the first connecting rod 41 and the second swing arm 422 are hingedly connected through the third matching hole 4212, the second hinge hole 411 and the fourth matching hole 4222), as shown in Figure 4 、 Figure 5 、 Figure 6 and Figure 8 .

[0062] In one or more embodiments, the second connecting arm 31 is provided with a third hinge hole 311 at the end away from the driving mechanism 1, and the third connecting rod 43 is hingedly connected with the second connecting arm 31 through the third hinge hole 311;

[0063] Specifically, the third connecting rod 43 comprises a third swing arm 431 and a fourth swing arm 432, the third swing arm 431 and the fourth swing arm 432 are respectively arranged on the two sides of the second connecting arm 31 to clamp the second connecting arm 31; the third swing arm 431 is provided with a fifth matching hole 4311 matched with the third hinge hole 311, and the fourth swing arm 432 is provided with a sixth matching hole 4321 matched with the third hinge hole 311 (i.e. when the third swing arm 431 and the fourth swing arm 432 clamp the second connecting arm 31, the hinge connection can be realized through the fifth matching hole 4311, the third hinge hole 311 and the sixth matching hole 4321);

[0064] The third swing arm 431 and the fourth swing arm 432 clamp the first connecting rod 41 at one end not connected with the second connecting arm 31, the first connecting rod 41 is provided with a fourth hinge hole 412, the third swing arm 431 is provided with a seventh matching hole 4312 matched with the fourth hinge hole 412, and the fourth swing arm 432 is provided with an eighth matching hole 4322 matched with the fourth hinge hole 412 (that is, when the third swing arm 431 and the fourth swing arm 432 clamp the first connecting rod 41, the first connecting rod 41 can be hinged through the seventh matching hole 4312, the fourth hinge hole 412 and the eighth matching hole 4322), as shown in Figure 4 、 Figure 5 、 Figure 6 and Figure 8 as shown.

[0065] In one or more embodiments, the first connecting rod 41 includes a vertical rod 413 arranged in parallel with the driving mechanism 1, and the vertical rod 413 is used to connect the second connecting rod 42 and the third connecting rod 43;

[0066] Further, the first connecting rod 41 further includes a boss 414 located on one side of the vertical rod 413 away from the driving mechanism 1, and the boss 414 is provided with an unloading groove 415 at the connection with the vertical rod 413. By arranging the boss 414, one end with the boss 414 can be inserted into the welding hole of the case 6 during use. When the outer wall of the vertical rod 413 abuts against the inner wall of the welding hole, the boss 414 can play a limiting role to prevent the positioning member from falling off from the welding hole during welding, causing welding failure. The unloading groove 415 arranged at the connection between the boss 414 and the vertical rod 413 can help to disperse the load, relieve local stress concentration, reduce the risk of structural fatigue, and also facilitate the removal of burrs generated during processing, thereby ensuring the cleanliness and smoothness of the assembly surface, avoiding the interference of burrs with the movement and assembly accuracy of parts, and further improving the use quality and long-term reliability of the positioning member, as shown in Figure 7 .

[0067] In one or more embodiments, one end of the driving mechanism 1 is fixedly connected with a knob 5, and the outer surface of the knob 5 is provided with an anti-skid part. By arranging the anti-skid part, the problem of slipping of the worker when operating the knob 5 can be prevented, the efficiency is improved, and the use experience is ensured, as shown in Figure 1 .

[0068] In one or more embodiments, the middle part of the driving mechanism 1 is provided with a wrench groove.

[0069] The above merely describes preferred embodiments of the present application and is not intended to limit the present application. Any modification, equivalent replacement and improvement made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. An auxiliary tool for pipe welding, characterized by, The utility model provides a kind of folding mechanism, comprising driving mechanism (1), first mobile device (2) and second mobile device (3) are connected with driving mechanism (1), and driving mechanism (1) is used to drive first mobile device (2) and second mobile device (3) to be close to each other or away from each other; Further comprising several connecting rod folding mechanisms (4), one end of each connecting rod folding mechanism (4) is hinged to the first mobile device (2), and the other end is hinged to the second mobile device (3); When the first mobile device (2) and the second mobile device (3) are close to each other, the connecting rod folding mechanism (4) is folded towards the direction close to the driving mechanism (1); When the first mobile device (2) and the second mobile device (3) are away from each other, the connecting rod folding mechanism (4) is unfolded towards the direction away from the driving mechanism (1).

2. An auxiliary tool for pipe welding according to claim 1, characterized in that, The first mobile device (2) is a positive toothed nut, the second mobile device (3) is a negative toothed nut, and the driving mechanism (1) is a positive and negative toothed lead screw.

3. An auxiliary tool for pipe welding according to claim 2, characterized in that, The body of the connecting rod folding mechanism (4) is a three-link structure.

4. An auxiliary tool for pipe welding according to claim 3, characterized in that, The first mobile device (2) is circumferentially provided with a first connecting arm (21), and the first mobile device (2) is hinged to the connecting rod folding mechanism (4) through the first connecting arm (21); The second mobile device (3) is circumferentially provided with a second connecting arm (31), and the second mobile device (3) is hinged to the connecting rod folding mechanism (4) through the second connecting arm (31).

5. An auxiliary tool for pipe welding according to claim 4, characterized in that, The connecting rod folding mechanism (4) comprises a first connecting rod (41), one end of the first connecting rod (41) is hinged to a second connecting rod (42), and the other end is hinged to a third connecting rod (43).

6. An auxiliary tool for pipe welding according to claim 5, characterized in that, One end of the second connecting rod (42) is hinged to the first connecting rod (41), and the other end is hinged to the first connecting arm (21); One end of the third connecting rod (43) is hinged to the first connecting rod (41), and the other end is hinged to the second connecting arm (31).

7. An auxiliary tool for pipe welding according to claim 6, characterized in that, The first connecting rod (41) is arranged in parallel with the driving mechanism (1), and the second connecting rod (42) and the third connecting rod (43) are equal in length.

8. An auxiliary tool for pipe welding according to claim 7, characterized in that, The first connecting rod (41) comprises a vertical rod (413) arranged in parallel with the driving mechanism (1), and the vertical rod (413) is used to connect the second connecting rod (42) and the third connecting rod (43).

9. An auxiliary tool for pipe welding according to claim 8, characterized in that, The first connecting rod (41) further comprises a boss (414) located on the side of the vertical rod (413) away from the driving mechanism (1), and an unloading groove (415) is arranged at the connection between the boss (414) and the vertical rod (413).

10. An auxiliary tool for pipe welding according to any one of claims 1-9, characterized in that, One end of the driving mechanism (1) is fixedly connected with a knob (5).

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