An automatic welding clamping mechanism for pipe butt welding and its usage method

Abstract

The application provides a pipeline butt welding automatic welding clamping mechanism and a use method thereof. The pipeline butt welding automatic welding clamping mechanism comprises a pressing device, a mounting nut, a clamping block, a bolt, a base and an insulating plate. The pressing device is mounted on the through hole of the base through the mounting nut. The clamping block is mounted on the bottom groove of the base through the bolt. The insulating plate is mounted on the base through the screw and faces one side of the automatic welding walking mechanism. The pressing device comprises a pressing handle, a connecting rod, a guide nut, a pressing rod, an adjusting hand wheel, a connecting block, a rotating block and a pressing block. The pressing block is connected with the rotating block. The rotating block is engraved with a guide line. The rotating block is connected with the connecting block. The connecting block is connected with the pressing rod through the adjusting hand wheel. The length of the pressing device and the extension length of the pressing block are adjusted through the adjusting hand wheel, so that the clamping mechanism of the small and medium pipeline automatic welding equipment and the to-be-welded pipeline are stably clamped, and the problem that the sliding phenomenon occurs and the welding stability is affected is solved.

Description

Technical Field

[0001] This application belongs to the field of welding technology, specifically relating to an automatic welding clamping mechanism for pipe butt welding and its usage method. Background Technology

[0002] In the power, shipbuilding, and other fields, the welding workload of small and medium-sized pipelines is large, and automated welding technology is widely used. Currently, the actuators of automated welding equipment for small and medium-sized pipelines mainly include a clamping mechanism, a traveling mechanism, a wire feeding mechanism, a wire adjustment mechanism, a welding torch, and a welding torch height adjustment mechanism. The wire feeding mechanism, wire adjustment mechanism, welding torch, and welding torch height adjustment mechanism are mounted on the traveling mechanism, then as a whole on the clamping mechanism, and finally the clamping mechanism is installed on the pipeline to be welded. During the welding process, the clamping mechanism remains stationary, while the traveling mechanism drives the wire feeding mechanism, wire adjustment mechanism, welding torch, and welding torch height adjustment mechanism to rotate until the welding is completed.

[0003] The clamping mechanism of existing automatic welding equipment for small and medium-sized pipelines generally adopts a three-point clamp type (see...). Figure 1 ) or two-point clamping (see Figure 2 ) to clamp the pipe to be welded 16.

[0004] The three-point clamp type mainly consists of a right-angle chuck and a clamping block. The length of the clamping block can be adjusted to accommodate different pipe diameters. The two-point clamp type mainly consists of two clamping arms connected by elastic clamps to accommodate different pipe diameters. Due to the current structural design, the clamping mechanism of existing small and medium-sized pipe automatic welding equipment is unstable in clamping the pipe to be welded, and even slippage occurs, affecting the stability of welding.

[0005] For small and medium-sized pipelines during on-site installation and service, the automatic welding equipment actuator needs to be conveniently and reliably installed on the pipeline during automatic welding, which not only affects work efficiency but also welding quality. Summary of the Invention

[0006] In view of this, the present application aims to provide an automatic welding clamping mechanism for pipe butt welding and its usage method. By setting up an adjustment handwheel to adjust the length of the clamping device and the extension length of the clamping block, the problem of unstable clamping between the existing clamping mechanism of small and medium-sized automatic pipe welding equipment and the pipe to be welded, or even slippage, affecting the welding stability, is solved.

[0007] The first aspect of this application provides an automatic welding clamping mechanism for pipe butt welding. This mechanism includes a clamping device, a mounting nut 4, a locking block 10, bolts 11, a base 13, and an insulating plate 14. The clamping device is mounted on a through hole in the base 13 via the mounting nut 4. The locking block 10 is mounted on a bottom groove of the base 13 via bolts 11. The insulating plate 14 is mounted on the side of the base 13 facing the automatic welding traveling mechanism via screws. The base 13 has two mounting holes 12 for mounting the clamping mechanism to the automatic welding traveling mechanism. The clamping device includes a clamping handle 1, a connecting rod 2, a guide nut 3, a pressure rod 5, an adjusting handwheel 6, a connecting block 7, a rotating block 8, and a clamping block 9. The clamping block 9 is connected to the rotating block 8 via screws; the rotating block 8 has guide lines 15 engraved on it; the rotating block 8 is connected to the connecting block 7 via a pin; the connecting block 7 is connected to the pressure rod 5 via the adjusting handwheel 6.

[0008] In one specific embodiment of this application, the card block 10 is serialized.

[0009] In one specific embodiment of this application, the card block 10 has a semi-circular structure.

[0010] In one specific embodiment of this application, the clamping block 9 has an elongated hole in the middle, and its installation position is adjustable.

[0011] The second aspect of this application provides a method for using an automatic welding clamping mechanism for pipe butt welding. The method includes: the automatic welding clamping mechanism for pipe butt welding provided in the first aspect of this application is installed with an automatic welding walking mechanism via bolts 11; a suitable clamping block 10 is selected according to the outer diameter of the pipe 16 to be welded and installed on the base 13; the length of the clamping device and the extension length of the clamping block 9 are adjusted by adjusting the handwheel 6 until the guide line 15 on the rotating block 8 is parallel to the lower edge of the base 13 after the clamping handle 1 is pressed down; the appropriate welding process is selected to complete the welding; the clamping handle 1 is released and the automatic welding actuator is removed.

[0012] The beneficial effects of this application's technical solution are as follows: through the structural design of the insulating plate 14, insulation is achieved between the base 13 and the automatic welding walking mechanism, preventing circuit conduction during welding. The automatic welding clamping mechanism for pipe butt welding provided in this application embodiment has a simple structure. The clamping operation can be achieved by adjusting the handwheel 6 to adjust the length of the clamping device and the extension length of the clamping block 9. At the same time, the guide line 15 on the rotating block 8 can quickly confirm the accuracy of the operation. Attached Figure Description

[0013] Figure 1 The diagram shown is a schematic of a three-point caliper structure.

[0014] Figure 2The diagram shown is a schematic of a two-point clamping structure.

[0015] Figure 3 The diagram shown is a structural schematic of an automatic welding clamping mechanism for pipe butt welding provided in an embodiment of this application.

[0016] Figure 4 As shown Figure 3 The front view of an automatic welding clamping mechanism for pipe butt welding according to the embodiment shown.

[0017] Figure 5 As shown Figure 3 The rear view of an automatic welding clamping mechanism for pipe butt welding according to the embodiment shown.

[0018] Figure 6 As shown Figure 3 The right view of an automatic welding clamping mechanism for pipe butt welding according to the embodiment shown.

[0019] Figure 7 The image shown is a front perspective view of the clamping block in an automatic welding clamping mechanism for pipe butt welding provided in an embodiment of this application.

[0020] Figure 8 The image shown is a side view of an automatic welding clamping mechanism for pipe butt welding provided in an embodiment of this application, which clamps the pipe to be welded.

[0021] Figure 9 The image shown is a front perspective view of the clamping block in an automatic welding clamping mechanism for pipe butt welding provided in an embodiment of this application.

[0022] Figure 10 The image shown is a three-dimensional back view of the clamping block in an automatic welding clamping mechanism for pipe butt welding provided in an embodiment of this application. Detailed Implementation

[0023] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0024] At least one embodiment of this application provides an automatic welding clamping mechanism for pipe butt welding, mainly used for the reliable installation of the actuator of automatic welding equipment and the pipe to be welded. (Reference) Figures 3 to 8The automatic welding clamping mechanism for pipe butt welding mainly includes a clamping device, a mounting nut 4, a locking block 10, a bolt 11, a base 13, and an insulating plate 14. The clamping device is installed on the through hole of the base 13 via the mounting nut 4. The locking block 10 is installed on the bottom groove of the base 13 via the bolt 11. The insulating plate 14 is installed on the side of the base 13 facing the automatic welding traveling mechanism via screws. The base 13 has two mounting holes 12 to facilitate the installation of the clamping mechanism and the automatic welding traveling mechanism. The clamping device includes a clamping handle 1, a connecting rod 2, a guide nut 3, a pressure rod 5, an adjusting handwheel 6, a connecting block 7, a rotating block 8, and a clamping block 9. The clamping block 9 is connected to the rotating block 8 via screws; the rotating block 8 is engraved with guide lines 15; the rotating block 8 is connected to the connecting block 7 via a pin; the connecting block 7 is connected to the pressure rod 5 via the adjusting handwheel 6.

[0025] It should be noted that the automatic welding clamping mechanism clamps the pipe structure (see [link]). Figure 7 and Figure 8 .

[0026] According to the technical solution provided in the embodiments of this application, the insulation plate 14 is designed to insulate the base 13 from the automatic welding walking mechanism, preventing circuit conduction during welding. The automatic welding clamping mechanism for pipe butt welding provided in the embodiments of this application has a simple structure. With the help of the connecting rod 2, guide nut 3 and connecting rod 2, the clamping block 9 clamps the pipe 16 to be welded by pressing down the clamping handle 1; the length of the clamping device can be adjusted by adjusting the handwheel 6. Thus, the clamping operation can be achieved by adjusting the length of the clamping device and the extension length of the clamping block 9 by adjusting the handwheel 6. At the same time, the guide line 15 on the rotating block 8 can quickly confirm the accuracy of the operation.

[0027] In at least one embodiment of this application, the locking block 10 is serialized. Thus, different semi-circular holes are machined according to different pipe specifications, and the blocks are installed on the base 13 by bolts 11. The serialized locking block 10 and the position-adjustable pressure block can adapt to different pipes, increasing the application range of automatic welding equipment for small and medium-sized pipes. The structure of the locking block 10 is described below. Figure 9 and Figure 10 .

[0028] In at least one embodiment of this application, the clamping block 10 has a semi-circular structure. Thus, the semi-circular structure of the fitting clamping block 10 provides a sufficiently large contact area with the welded pipe 16, achieving reliable clamping of the welded pipe 16, ensuring the stability of the automatic welding traveling mechanism, and improving welding quality.

[0029] First, determine the outer diameter of the pipe 16 to be welded, select a suitable clamping block 10, and install it on the base 13. Adjust the length of the clamping device and the extension length of the clamping block 9 by adjusting the handwheel 6 until the guide line 15 on the rotating block 8 is parallel to the lower edge of the base 13 after the clamping handle 1 is pressed down. Finally, reliable clamping of the pipe 16 to be welded is achieved.

[0030] In at least one embodiment of this application, the clamping block 9 has an elongated hole in the middle, and its installation position is adjustable.

[0031] At least one embodiment of this application provides a method for using an automatic welding clamping mechanism for pipe butt welding. The method for using the automatic welding clamping mechanism for pipe butt welding includes the following steps.

[0032] S1: The automatic welding clamping mechanism for pipe butt welding provided in this application embodiment is installed with the automatic welding walking mechanism through bolt 11.

[0033] S2: Select a suitable clamping block 10 according to the outer diameter of the pipe 16 to be welded, and install it on the base 13.

[0034] S3: Adjust the length of the clamping device and the extension length of the clamping block 9 by adjusting the handwheel 6 until the guide line 15 on the rotating block 8 is parallel to the lower edge of the base 13 after the clamping handle 1 is pressed down.

[0035] S4: Select the appropriate welding process to complete the welding.

[0036] S5: Loosen the clamping handle 1 and remove the automatic welding actuator.

[0037] The method of using the automatic welding clamping mechanism for pipe butt welding includes the corresponding technical features of the automatic welding clamping mechanism for pipe butt welding provided in the above embodiments of this application, and can achieve the corresponding technical effects, which will not be repeated here.

[0038] It should be noted that the combination of the technical features in the embodiments of this application is not limited to the combination methods described in the embodiments of this application or the combination methods described in specific embodiments. All technical features described in this application can be freely combined or combined in any way, unless they contradict each other.

[0039] As indicated in this application and claims, unless the context clearly indicates otherwise, the words "a," "an," "an," and / or "the" do not specifically refer to the singular and may also include the plural. Generally speaking, the terms "comprising" and "including" only indicate the inclusion of explicitly identified steps and elements, which do not constitute an exclusive list, and the method or apparatus may also include other steps or elements.

[0040] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications or equivalent substitutions made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. An automatic welding clamping mechanism for pipe butt welding, characterized in that, The utility model relates to a pipe butt welding automatic welding clamping mechanism, which comprises a pressing device, a mounting nut, a clamping block, a bolt, a base and an insulating plate, the pressing device is installed on the through hole of the base through the mounting nut, the clamping block is installed on the bottom groove of the base through the bolt, the insulating plate is installed on the upper side of the base facing the automatic welding walking mechanism through the screw, two mounting holes are formed in the base to realize the installation of the clamping mechanism and the automatic welding walking mechanism, the pressing device comprises a pressing handle, a connecting rod, a guide nut, a pressing rod, an adjusting hand wheel, a connecting block, a rotating block and a pressing block, and the pressing block is connected with the rotating block through the screw; the rotating block is engraved with a guide line; the rotating block is connected with the connecting block through a pin; and the connecting block is connected with the pressing rod through the adjusting hand wheel.

2. The automatic pipe butt welding clamping mechanism according to claim 1, characterized in that, The clamping block is serialized.

3. The automatic pipe butt weld clamping mechanism of claim 1, wherein, The clamping block is a semicircular structure.

4. The pipe butt welding automatic welding clamping mechanism according to any one of claims 1 to 3, characterized in that, An elongated hole is formed in the middle of the pressing block, and the installation position can be adjusted.

5. A method of using an automatic pipe butt welding clamping mechanism, characterized in that, The utility model relates to a pipe butt welding automatic welding clamping mechanism, which comprises a pressing device, a mounting nut, a clamping block, a bolt, a base and an insulating plate, the pressing device is installed on the through hole of the base through the mounting nut, the clamping block is installed on the bottom groove of the base through the bolt, the insulating plate is installed on the upper side of the base facing the automatic welding walking mechanism through the screw, two mounting holes are formed in the base to realize the installation of the clamping mechanism and the automatic welding walking mechanism, the pressing device comprises a pressing handle, a connecting rod, a guide nut, a pressing rod, an adjusting hand wheel, a connecting block, a rotating block and a pressing block, and the pressing block is connected with the rotating block through the screw; the rotating block is engraved with a guide line; the rotating block is connected with the connecting block through a pin; and the connecting block is connected with the pressing rod through the adjusting hand wheel. The clamping block is serialized. The clamping block is a semicircular structure. An elongated hole is formed in the middle of the pressing block, and the installation position can be adjusted. The utility model relates to a pipe butt welding automatic welding clamping mechanism, which comprises a pressing device, a mounting nut, a clamping block, a bolt, a base and an insulating plate, the pressing device is installed on the through hole of the base through the mounting nut, the clamping block is installed on the bottom groove of the base through the bolt, the insulating plate is installed on the upper side of the base facing the automatic welding walking mechanism through the screw, two mounting holes are formed in the base to realize the installation of the clamping mechanism and the automatic welding walking mechanism, the pressing device comprises a pressing handle, a connecting rod, a guide nut, a pressing rod, an adjusting hand wheel, a connecting block, a rotating block and a pressing block, and the pressing block is connected with the rotating block through the screw; the rotating block is engraved with a guide line; the rotating block is connected with the connecting block through a pin; and the connecting block is connected with the pressing rod through the adjusting hand wheel. The clamping block is serialized. The clamping block is a semicircular structure. An elongated hole is formed in the middle of

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