Outer pipe welding clamping device

Abstract

The utility model discloses an outer pipe welding and clamping device which comprises a working table, a clamping mechanism is correspondingly installed on the upper surface of the working table in a sliding mode, and the clamping mechanism is used for clamping an outer pipe. The supporting assembly is arranged at one end of the sliding frame, the supporting assembly and the clamping mechanism are arranged in a corresponding mode, and the sliding frame is installed in the workbench in a sliding mode; and the limiting mechanism is arranged in the sliding frame, one end of the limiting mechanism is detachably connected with the supporting assembly, and the limiting mechanism is used for supporting and limiting the supporting assembly. During use, when the supporting assembly is erected, the limiting mechanism is rotated and is in butt joint with the supporting assembly, so that the supporting assembly is supported and limited through the limiting mechanism, the stability of the supporting assembly is improved, the situation that the supporting assembly shakes is avoided, and then the two ends of an outer pipe are supported by the limiting mechanism and the supporting assembly respectively; therefore, the welding stability of the outer pipe is improved, and the welding effect is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of outer pipe welding, and particularly relates to an outer pipe welding clamping device. Background Art

[0002] Pipelines are widely used in long-distance transportation. Before pipe fittings are put into use, their joints need to be welded. However, during the welding process of the pipe fittings to be welded, the welding pipe fittings are generally cylindrical. During the butt joint process, if no force is applied to them, they are likely to fall. Therefore, during the welding process, in order to facilitate welding, a clamping device is used to replace workers to fix the outer pipe. Publication number: CN210451619U, discloses a clamping device for pipe fitting welding, including a rotating device and two pipe fitting clamping mechanisms. The rotating device and the pipe fitting clamping mechanism located below are fixedly connected by two support connecting rods. The two pipe fitting clamping mechanisms are fixedly connected by a pneumatic telescopic rod. The rotating device includes a fixed base. A rotating cavity is opened inside the fixed base. A rotating plate is movably connected inside the rotating cavity. A through groove communicating with the rotating cavity is opened at the top of the fixed base corresponding to the position of the support connecting rod. A support groove communicating with it is opened at the position of the inner wall bottom of the rotating cavity corresponding to the fixed base. This clamping device for pipe fitting welding has a clever structural design. It can rotate the pipe fittings during welding, and then can conveniently perform welding operations on different positions of the pipe fittings. There is no need for workers to move the welding torch, which saves time and effort and improves the welding efficiency, fully meeting the use requirements.

[0003] However, there are some problems in the prior art: Currently, the existing clamping devices generally only clamp the butt joints at one end of two groups of outer pipes, and cannot support the other end of the outer pipes. As a result, during use, the other end of the outer pipes sags, and cracks appear in the butt joint of the two groups of outer pipes, affecting the welding effect, and there are certain limitations. Therefore, we propose an outer pipe welding clamping device. Summary of the Utility Model

[0004] Aiming at the problems existing in the prior art, the purpose of the utility model is to provide an outer pipe welding clamping device. Through the mutual cooperation of the clamping mechanism and the support assembly, during use, when the support assembly is erected, the rotation limiting mechanism is rotated to be butted with the support assembly, so as to support and limit the support assembly through the limiting mechanism, improve the stability of the support assembly, and thus avoid the situation of the support assembly shaking. Subsequently, both of them support both ends of the outer pipe respectively, so as to improve the stability during the welding of the outer pipe and improve the welding effect.

[0005] The utility model is realized as follows. An outer pipe welding clamping device includes:

[0006] A workbench, on the upper surface of which a clamping mechanism is slidably installed correspondingly for clamping the outer pipe;

[0007] A support assembly and a carriage, the support assembly is arranged at one end of the carriage, the support assembly is arranged corresponding to the clamping mechanism, and the carriage is slidably installed in the workbench;

[0008] A limiting mechanism, the limiting mechanism is arranged in the carriage, and one end of the limiting mechanism is detachably connected to the support assembly for supporting and limiting the support assembly.

[0009] Optionally, the support assembly includes two sets of legs, a support plate is fixedly installed between the two sets of legs, a U-shaped groove is formed in the middle of the upper surface of the support plate, and a U-shaped cushion plate is movably installed in the U-shaped groove.

[0010] Optionally, a cylinder is arranged on the lower surface of the support plate, and one end of the piston rod of the cylinder is arranged on the U-shaped cushion plate.

[0011] Optionally, the carriage includes two sets of slide bars, a storage groove is formed inside the workbench, the slide bars are slidably installed in the storage groove, and an extension rod is slidably installed in the slide bars.

[0012] Optionally, a placement groove is formed inside the extension rod, the limiting mechanism is arranged in the placement groove, and the lower end of the leg is rotatably installed at one end of the extension rod.

[0013] Optionally, the limiting mechanism includes two sets of support rods, the support rods are arranged in the placement groove, a top plate is fixedly installed between the two sets of support rods, a clamping groove is formed on one side of the leg, and the top plate is clamped with the clamping groove.

[0014] Optionally, notches are formed on one side of the two sets of slide bars and the extension rod, and the two notches are arranged horizontally in alignment, and the top plate is arranged corresponding to the notches.

[0015] Optionally, a limiting block is fixedly installed on one side of each end of the top plate, a screw rod is slidably installed in the limiting block, an orifice is formed on one side of the clamping groove, the screw rod is arranged corresponding to the orifice, and a nut is threadedly connected to one end of the screw rod.

[0016] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0017] 1. Through the mutual cooperation of the clamping mechanism and the support assembly provided by the present utility model, during use, both of them support both ends of the outer tube respectively, thereby improving the stability during the welding of the outer tube, improving the welding effect. At the same time, the support assembly can perform lifting activities, so that when supporting one end of the outer tube, the support assembly can be adjusted according to the usage situation to ensure that both ends of the outer tube are on the same horizontal line, thereby avoiding the situation of misalignment during docking and affecting the welding effect of the outer tube.

[0018] 2. When the support component is erected, rotate the limiting mechanism provided by the present utility model to dock with the support component, so as to support and limit the support component through the limiting mechanism, improve the stability of the support component, and avoid the situation of the support component shaking.

[0019] 3. Through the mutual cooperation of the screw, the orifice and the nut provided by the present utility model, after the support component is docked with the limiting mechanism, the user slides the screw to insert the screw into the orifice, and one end of the screw is exposed from the support component. Then, screw on the nut to limit the screw so that it can no longer slide, thus achieving the effect of convenient fixation and use, and improving the overall support stability of the support component.

[0020] Other features and advantages of the present utility model will become clear through the following detailed description of the exemplary embodiments of the present utility model with reference to the accompanying drawings. Description of the Drawings

[0021] Figure 1 is the structural schematic diagram provided by the present utility model;

[0022] Figure 2 is the schematic diagram of the carriage provided by the present utility model;

[0023] Figure 3 is the docking schematic diagram of the support component and the limiting mechanism provided by the present utility model;

[0024] Figure 4 is the schematic diagram of the limiting mechanism provided by the present utility model;

[0025] Figure 5 is the schematic diagram of the support component provided by the present utility model.

[0026] In the figure: 1, workbench; 2, clamping mechanism; 3, support component; 301, leg; 302, support plate; 303, U-shaped backing plate; 304, cylinder; 305, card slot; 306, orifice; 4, limiting mechanism; 401, support rod; 402, top plate; 403, nut; 404, limiting block; 405, screw; 5, carriage; 501, slide bar; 502, extension rod; 503, placement groove; 6, storage groove. Detailed Embodiments

[0027] In order to further understand the content, features and effects of the present utility model, the following embodiments are cited and described in detail with reference to the accompanying drawings.

[0028] Such as Figures 1 to 5As shown in the figure, a clamping device for outer tube welding provided by an embodiment of the present utility model includes: a workbench 1, a clamping mechanism 2 is slidably installed corresponding to the upper surface of the workbench 1 for clamping the outer tube; a support assembly 3 and a carriage 5, the support assembly 3 is arranged at one end of the carriage 5, the support assembly 3 is arranged corresponding to the clamping mechanism 2, and the carriage 5 is slidably installed in the workbench 1;

[0029] Specifically, as Figure 1 shown, when in use, one ends of two groups of outer tubes are fixed on the workbench 1 through the clamping mechanism 2 respectively. Subsequently, the carriage 5 is pulled out from the workbench 1, and the support assembly 3 is erected to support the other ends of the outer tubes. In this way, the clamping mechanism 2 and the support assembly 3 support both ends of the outer tube respectively, thereby improving the stability during the welding of the outer tube. At the same time, when the two groups of clamping mechanisms 2 slide inwards relatively, the support assembly 3 will not obstruct the outer tube. Therefore, the two groups of outer tubes can be quickly aligned to improve the welding effect.

[0030] It should be noted that the support assembly 3 can be lifted and lowered, so that when supporting outer tubes of different sizes, the support assembly 3 can be started to be lifted and lowered according to the position of the outer tube after clamping and fixing to support the outer tube, improving the applicability.

[0031] Furthermore, a limiting mechanism 4 is arranged in the carriage 5. One end of the limiting mechanism 4 is detachably connected to the support assembly 3 for supporting and limiting the support assembly 3;

[0032] Specifically, as Figure 1 and Figure 3 shown, when the support assembly 3 is erected, the limiting mechanism 4 in the carriage 5 is exposed. Subsequently, the limiting mechanism 4 is rotated to be docked with the support assembly 3. First, the limiting mechanism 4 is fixed so that it cannot rotate, thereby supporting and limiting the support assembly 3 through the limiting mechanism 4, improving the stability of the support assembly 3, and thus avoiding the situation of the support assembly 3 shaking.

[0033] It should be noted that, as Figure 1 shown, the maximum angle that the support assembly 3 rotates is 90 degrees, that is, the erected state, so as to cooperate with the limiting mechanism 4.

[0034] Furthermore, the support assembly 3 includes two sets of legs 301. A support plate 302 is fixedly installed between the two sets of legs 301. A U-shaped groove is formed in the middle of the upper surface of the support plate 302, and a U-shaped cushion plate 303 is movably installed in the U-shaped groove; a cylinder 304 is arranged on the lower surface of the support plate 302, and one end of the piston rod of the cylinder 304 is arranged on the U-shaped cushion plate 303;

[0035] Specifically, as Figure 3 and Figure 5As shown, when in use, the two sets of legs 301 and the support plate 302 form a support frame, then the U-shaped backing plate 303 in the U-shaped groove fits with the outer tube. If it cannot be directly aligned with the outer tube, the air cylinder 304 can be activated to drive the U-shaped backing plate 303 to slide upward in the U-shaped groove to contact the outer tube and support the outer tube, thus achieving the effect of convenient use.

[0036] Furthermore, the carriage 5 includes two sets of slide rods 501. A storage groove 6 is formed inside the workbench 1, and the slide rods 501 are slidably installed in the storage groove 6. An extension rod 502 is slidably installed in the slide rod 501.

[0037] Specifically, as Figure 1 and Figure 2 shown, when in use, the slide rods 501 can be taken out of the storage groove 6, and when not in use, the slide rods 501 can be retracted into the storage groove 6 for storage, reducing the floor area, thus achieving the effect of convenient storage and use.

[0038] An extension rod 502 is slidably installed in the slide rod 501. When the slide rod 501 reaches the sliding limit, the extension rod 502 can be pulled to continue to extend to increase the use distance.

[0039] Furthermore, a placement groove 503 is formed inside the extension rod 502. The limiting mechanism 4 is arranged in the placement groove 503, and the lower end of the leg 301 is rotatably installed at one end of the extension rod 502.

[0040] Specifically, as Figure 2 shown, the limiting mechanism 4 is placed in the placement groove 503, which can prevent the support assembly 3 from being obstructed when retracted, thus reducing unnecessary troubles.

[0041] Furthermore, the limiting mechanism 4 includes two sets of support rods 401. The support rods 401 are arranged in the placement groove 503. A top plate 402 is fixedly installed between the two sets of support rods 401. A clamping groove 305 is formed on one side of the leg 301, and the top plate 402 is clamped with the clamping groove 305.

[0042] Specifically, as Figures 3 to 5 shown, after the support assembly 3 is unfolded, the support rod 401 is rotated, the top plate 402 is taken out of the placement groove 503, and rotated until both ends of the top plate 402 are butted against the clamping grooves 305 on one side of the two sets of legs 301 respectively. In this way, the top plate 402 and the two sets of support rods 401 form a support frame to support the support assembly 3, thus achieving the effect of improving the support and avoiding shaking.

[0043] Furthermore, notches are formed on one side of the two sets of slide rods 501 and the extension rod 502, and the two notches are arranged horizontally in alignment. The top plate 402 is arranged corresponding to the notch.

[0044] Specifically, asFigure 2 and Figure 3 As shown in Figure 3 , when the extension rod 502 is retracted into the sliding rod 501, the notches on one side of the two will coincide. Thus, when the top plate 402 is retracted, it will be stuck in the notch to accommodate and limit the top plate 402, achieving the effect of convenient use.

[0045] Furthermore, limit blocks 404 are fixedly installed on one side of both ends of the top plate 402. A screw rod 405 is slidably installed in the limit block 404. An orifice 306 is formed on one side of the card slot 305. The screw rod 405 and the orifice 306 are arranged in correspondence. One end of the screw rod 405 is threadedly connected with a nut 403.

[0046] Specifically, as shown in Figure 3 and Figure 4 , after the top plate 402 is docked with the card slot 305, the user slides the screw rod 405 to insert the screw rod 405 into the orifice 306 and makes one end of the screw rod 405 exposed from the support leg 301. Subsequently, the nut 403 is screwed on to limit the screw rod 405 so that it can no longer slide, thus achieving the effect of convenient and fixed use and improving the support stability of the overall support assembly 3.

[0047] Working principle:

[0048] During use, first, pull the two support legs 301 to take out the support assembly 3 from the workbench 1. Then, rotate the support assembly 3 to make the support assembly 3 stand upright. After the support assembly 3 is unfolded, rotate the support rod 401 to take out the top plate 402 from the placement groove 503 and rotate it until both ends of the top plate 402 are docked with the card slots 305 on one side of the two support legs 301. After the top plate 402 is docked with the card slot 305, the user slides the screw rod 405 to insert the screw rod 405 into the orifice 306 and makes one end of the screw rod 405 exposed from the support leg 301. Subsequently, the nut 403 is screwed on to limit the screw rod 405 so that it can no longer slide to complete the assembly. Then, place one end of the two outer pipes to be welded on the workbench 1 first, and fix the two outer pipes respectively through the two clamping structures 2. Then, the other end of the outer pipe is in contact with the U-shaped backing plate 303 in the U-shaped groove. If it cannot directly contact the outer pipe, the air cylinder 304 can be activated to drive the U-shaped backing plate 303 to slide upward in the U-shaped groove to contact the outer pipe and support the outer pipe so that both ends of the outer pipe are on the same horizontal line, and then welding is carried out.

[0049] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.​​​​

Claims

1. An outer tube welding clamping device, characterized in that: include: A workbench (1), wherein a clamping mechanism (2) is slidably mounted on the upper surface of the workbench (1) for clamping the external tube; A support assembly (3) and a slide (5), wherein the support assembly (3) is arranged at one end of the slide (5), the support assembly (3) and the clamping mechanism (2) are arranged correspondingly, and the slide (5) is slidably installed in the workbench (1); A limiting mechanism (4), wherein the limiting mechanism (4) is arranged in the slide frame (5), and one end of the limiting mechanism (4) is detachably connected to the support assembly (3) so as to support and limit the support assembly (3).

2. The outer tube welding clamping device according to claim 1, characterized in that: The support assembly (3) comprises two groups of supporting legs (301), a supporting plate (302) is fixedly installed between the two groups of supporting legs (301), a U-shaped groove is opened in the middle of the upper surface of the supporting plate (302), and a U-shaped pad (303) is movably installed in the U-shaped groove.

3. The outer tube welding clamping device according to claim 2, characterized in that: A cylinder (304) is disposed on the lower surface of the support plate (302), and one end of a piston rod of the cylinder (304) is disposed on a U-shaped pad (303).

4. The outer tube welding clamping device according to claim 3, characterized in that: The slide frame (5) comprises two groups of slide bars (501), a storage groove (6) is provided inside the workbench (1), the slide bars (501) are slidably installed in the storage groove (6), and an extension rod (502) is slidably installed in the slide bars (501).

5. The outer tube welding clamping device according to claim 4, characterized in that: The extension rod (502) is provided with a placement groove (503) inside, the limiting mechanism (4) is arranged in the placement groove (503), and the lower end of the support leg (301) is rotatably mounted on one end of the extension rod (502).

6. The outer tube welding clamping device according to claim 5, characterized in that: The limiting mechanism (4) comprises two groups of supporting rods (401), the supporting rods (401) are arranged in the placement grooves (503), a top plate (402) is fixedly installed between the two groups of supporting rods (401), a clamping groove (305) is opened on one side of the supporting leg (301), and the top plate (402) is clamped with the clamping groove (305).

7. The outer tube welding clamping device according to claim 6, characterized in that: One side of the two groups of sliding rods (501) and extension rods (502) is provided with notches, and the two groups of notches are arranged in a horizontal and consistent manner, and the top plate (402) is arranged corresponding to the notches.

8. The outer tube welding clamping device according to claim 7, characterized in that: A limit block (404) is fixedly installed on one side of both ends of the top plate (402), a screw rod (405) is slidably installed in the limit block (404), a hole (306) is opened on one side of the slot (305), the screw rod (405) and the hole (306) are arranged correspondingly, and a nut (403) is threadedly connected to one end of the screw rod (405).

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