Automatic welding and clamping mechanism for butt welding of pipelines and using method of automatic welding and clamping mechanism

Abstract

The invention provides an automatic welding and clamping mechanism for butt welding of pipelines and a using method of the automatic welding and clamping mechanism. The automatic welding and clamping mechanism for butt welding of the pipelines comprises a pressing device, a mounting nut, a clamping block, a bolt, a base and an insulating plate. And the pressing device is mounted on the through hole of the base through a mounting nut. And the clamping block is mounted on the bottom groove of the base through a bolt. The insulating plate is installed on the side, facing the automatic welding walking mechanism, of the base through screws. 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; a guide line is engraved on the rotating block; 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 extending length of the pressing block are adjusted through the adjusting hand wheel, so that the problem that the welding stability is affected due to the fact that clamping between a clamping mechanism of the small and medium-sized pipeline automatic welding equipment and a to-be-welded pipeline is unstable and even the slipping phenomenon occurs is solved.

Description

Technical Field

[0001] The present application belongs to the field of welding technology, and specifically relates to an automatic welding clamping mechanism for pipe butt welding and a method for using the same. Background Art

[0002] In the fields of power, shipbuilding, etc., the welding workload of small and medium-sized pipelines is large, and automated welding technology has been widely used. At present, the actuators of small and medium-sized pipeline automatic welding equipment mainly include clamping mechanism, traveling mechanism, wire feeding mechanism, welding wire adjustment mechanism, welding gun and welding gun height adjustment mechanism. The wire feeding mechanism, welding wire adjustment mechanism, welding gun and welding gun height adjustment mechanism are installed on the traveling mechanism, and then installed on the clamping mechanism as a whole, and finally the clamping mechanism is installed on the pipeline to be welded. During the welding process, the clamping mechanism does not move, and the traveling mechanism drives the wire feeding mechanism, welding wire adjustment mechanism, welding gun and welding gun height adjustment mechanism to rotate until the welding is completed.

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

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

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

[0006] In view of this, the embodiments of the present application are committed to providing an automatic welding clamping mechanism for pipe butt welding and a method of using the same. By setting an adjustment hand wheel to adjust the length of the clamping device and the extension length of the clamping block, the problem of unstable clamping of the clamping mechanism of existing automatic welding equipment for small and medium-sized pipes and the pipe to be welded, and even slipping, which affects the welding stability, is solved.

[0007] The first aspect of the present application provides a pipe butt welding automatic welding clamping mechanism, which includes a clamping device, a mounting nut 4, a clamping 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 through the mounting nut 4. The clamping block 10 is installed on the bottom groove of the base 13 through the bolt 11. The insulating plate 14 is installed on the side of the base 13 facing the automatic welding travel mechanism through screws. Two mounting holes 12 are opened on the base 13 to realize the installation of the clamping mechanism and the automatic welding travel mechanism. The clamping device includes a clamping handle 1, a connecting rod 2, a guide nut 3, a pressure rod 5, an adjustment hand wheel 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 by screws; a guide line 15 is engraved on the rotating block 8; the rotating block 8 is connected to the connecting block 7 by a pin; the connecting block 7 is connected to the pressure rod 5 by the adjustment hand wheel 6.

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

[0009] In a specific embodiment of the present application, the block 10 is a semicircular structure.

[0010] In a specific embodiment of the present application, a long hole is opened in the middle of the pressing block 9, and the installation position is adjustable.

[0011] The second aspect of the present application provides a method for using an automatic welding clamping mechanism for pipe butt welding, and the method for using the automatic welding clamping mechanism for pipe butt welding includes: the automatic welding clamping mechanism for pipe butt welding provided in the first aspect of the present application is installed with the automatic welding walking mechanism through a bolt 11; according to the outer diameter of the welded pipe 16, an adaptive clamping block 10 is selected and installed on the base 13; the length of the clamping device and the extended length of the clamping block 9 are adjusted by adjusting the hand wheel 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 corresponding welding process is selected to complete the welding; the clamping handle 1 is loosened and the automatic welding actuator is removed.

[0012] The beneficial effect of the technical solution of the present application is that the insulation between the base 13 and the automatic welding travel mechanism is achieved through the structural design of the insulating plate 14, thereby preventing the circuit from being turned on during the welding process. The structure of the automatic welding clamping mechanism for pipe butt welding provided by the embodiment of the present application is simple, and the clamping operation can be achieved by only adjusting the hand wheel 6 to adjust the length of the clamping device and the extension length of the clamping block 9, while the guide line 15 on the rotating block 8 can quickly confirm the accuracy of the operation. BRIEF DESCRIPTION OF THE DRAWINGS

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

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

[0015] Figure 3 Shown is a structural schematic diagram of an automatic welding clamping mechanism for pipeline butt welding provided in one embodiment of the present application.

[0016] Figure 4 Shown Figure 3 A front view of an automatic welding clamping mechanism for butt welding of pipes in the illustrated embodiment.

[0017] Figure 5 Shown Figure 3 A rear view of an automatic welding clamping mechanism for pipe butt welding in the illustrated embodiment.

[0018] Figure 6 Shown Figure 3 A right side view of an automatic welding clamping mechanism for butt welding of pipes according to the illustrated embodiment.

[0019] Figure 7 Shown is a front perspective schematic diagram of a clamping block in an automatic welding clamping mechanism for pipe butt welding provided by an embodiment of the present application.

[0020] Figure 8 Shown is a side schematic diagram of a pipe butt welding automatic welding clamping mechanism clamping a pipe to be welded provided by an embodiment of the present application.

[0021] Fig. 9 Shown is a front perspective schematic diagram of a clamping block in an automatic welding clamping mechanism for pipe butt welding provided by an embodiment of the present application.

[0022] Fig.10 Shown is a back perspective schematic diagram of a clamping block in an automatic welding clamping mechanism for pipe butt welding provided by an embodiment of the present application. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0024] At least one embodiment of the present application provides a pipe butt welding automatic welding clamping mechanism, which is mainly used for the reliable installation of the automatic welding equipment actuator and the welded pipe. Figures 3 to 8The automatic welding clamping mechanism for pipe butt welding mainly includes a clamping device, a mounting nut 4, a clamping 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 through the mounting nut 4. The clamping block 10 is installed on the bottom groove of the base 13 through the bolt 11. The insulating plate 14 is installed on the side of the base 13 facing the automatic welding travel mechanism through screws. Two mounting holes 12 are opened on the base 13 to realize the installation of the clamping mechanism and the automatic welding travel mechanism. The clamping device includes a clamping handle 1, a connecting rod 2, a guide nut 3, a pressure rod 5, an adjusting hand wheel 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 by screws; a guide line 15 is engraved on the rotating block 8; the rotating block 8 is connected to the connecting block 7 by a pin; the connecting block 7 is connected to the pressure rod 5 by the adjusting hand wheel 6.

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

[0026] According to the technical solution provided in the embodiment of the present application, the insulation between the base 13 and the automatic welding travel mechanism is achieved through the structural design of the insulating plate 14, thereby preventing the circuit from being turned on during the welding process. The structure of the automatic welding clamping mechanism for pipe butt welding provided in the embodiment of the present application is simple. With the help of the connecting rod 2, the guide nut 3 and the connecting rod 2, the clamping block 9 is clamped on the welded pipe 16 by pressing down the clamping handle 1; the length of the clamping device is adjusted by adjusting the hand wheel 6. In this way, the clamping operation can be achieved by only adjusting the hand wheel 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.

[0027] In at least one embodiment of the present application, the clamp block 10 is serialized. Thus, different semicircular holes are processed according to different pipe specifications and installed on the base 13 by bolts 11. The serialized clamp block 10 and the position-adjustable pressure block can adapt to different pipes, increasing the application range of small and medium-sized pipe automatic welding equipment. Fig. 9 and Fig.10 .

[0028] In at least one embodiment of the present application, the clamping block 10 is a semicircular structure. In this way, the adapted clamping block 10 is a semicircular structure, and the contact area with the welded pipe 16 is large enough to achieve reliable clamping of the welded pipe 16, ensure the stability of the automatic welding walking mechanism, and improve the welding quality.

[0029] First, determine the outer diameter of the pipe 16 to be welded, select the appropriate 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 hand wheel 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, the pipe 16 to be welded is reliably clamped.

[0030] In at least one embodiment of the present application, a long hole is opened in the middle of the pressing block 9, and the installation position is adjustable.

[0031] At least one embodiment of the present 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 the embodiment of the present application is installed with the automatic welding walking mechanism through bolts 11.

[0033] S2: According to the outer diameter of the pipe 16 to be welded, select an appropriate clamping block 10 and install it on the base 13.

[0034] S3: The length of the clamping device and the extension length of the clamping block 9 are adjusted by adjusting the hand wheel 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: Release 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-mentioned embodiments of the present application, and can achieve the corresponding technical effects, which will not be repeated here.

[0038] It should be noted that the combination of the various technical features in the embodiments of the present application is not limited to the combination described in the embodiments of the present application or the combination described in the specific embodiments, and all technical features described in the present application can be freely combined or combined in any way unless there is a contradiction between them.

[0039] As shown in this application and claims, unless the context clearly indicates an exception, the words "a", "an", "an" and / or "the" do not refer to the singular and may also include the plural. Generally speaking, the terms "comprises" and "includes" only indicate the inclusion of the steps and elements that have been clearly identified, and these steps and elements do not constitute an exclusive list. The method or device may also include other steps or elements.

[0040] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. An automatic welding clamping mechanism for pipe butt welding, characterized in that: It includes a clamping device, a mounting nut, a clamping block, a bolt, a base and an insulating plate. The clamping 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 bolts, and the insulating plate is installed on the side of the base facing the automatic welding travel mechanism through screws. Two mounting holes are opened on the base to realize the installation of the clamping mechanism and the automatic welding travel mechanism. The clamping device includes a clamping handle, a connecting rod, a guide nut, a pressure rod, an adjusting hand wheel, a connecting block, a rotating block and a clamping block. The clamping block is connected to the rotating block through screws; a guide line is engraved on the rotating block; the rotating block is connected to the connecting block through a pin; the connecting block is connected to the pressure rod through an adjusting hand wheel.

2. The automatic welding clamping mechanism for pipe butt welding according to claim 1 is characterized in that: The card blocks are serialized.

3. The automatic welding clamping mechanism for pipe butt welding according to claim 1 is characterized in that: The card block is a semicircular structure.

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

5. A method for using an automatic welding clamping mechanism for pipe butt welding, characterized in that: include: The automatic welding clamping mechanism for butt welding of pipes according to any one of claims 1 to 4 is installed on the automatic welding traveling mechanism by means of bolts; According to the outer diameter of the pipe to be welded, select the appropriate clamp block and install it on the base; Adjust the length of the clamping device and the extension length of the clamping block by adjusting the hand wheel until the guide line on the rotating block is parallel to the lower edge of the base after the clamping handle is pressed down; Select the appropriate welding process to complete the welding; Loosen the clamping handle and remove the automatic welding actuator.

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