JP6818890B2 - U-shaped rib welding equipment and welding system - Google Patents

Description

The application number was 2016106966659.4, the invention name was "U-shaped rib welding equipment and welding system", and the application was submitted to the China Bureau of Interest on August 19, 2016. The submitted application number is 2017100908858.5, and the invention name claims the priority based on the Chinese patent application of "U-shaped rib welding device and welding system", all of which are incorporated in the present application by reference.

The present invention relates to the field of bridge engineering, and specifically to a U-shaped rib welding device. The present invention also relates to a U-shaped rib welding system.

The steel box girder is an important part of the load receiving structure of the bridge and is mainly used to provide support to avoid deformation of the bridge. The steel box girder generally has a structure such as a top plate and a bottom plate, and the top plate and the bottom plate are generally formed by welding a U-shaped rib and a bottom plate.

Conventionally, single-sided outer surface welding has been used for the fillet welding line between the U-shaped rib of the steel box girder and the bottom plate. When welding from the outer surface, the outside of the U-shaped rib is usually grooved or welded with a large current in order to reach the penetration depth required for the design. When welding with a large current, the stability of the current, voltage and welding speed during welding directly affects the welding quality, and it is difficult to ensure the welding quality. When groove processing is performed on the outside of the U-shaped rib, it becomes difficult to match the groove size, root surface, and gap at the time of processing or assembly, which directly affects the welding quality.

The above welding method often causes various problems such as incomplete penetration inside the U-shaped rib, poor fusion, welding burrs, and the penetration depth does not meet the requirements. Defects such as cracks are likely to occur inside the character ribs, which greatly impairs the strength of the weld line.

An object of the present invention is to provide a U-shaped rib welding device capable of entering the inside of a U-shaped rib and continuously welding, and avoiding defects in the welding line of the U-shaped rib. Another object of the present invention is to provide a welding system for U-shaped ribs.

In order to realize the above technical object, the present invention provides a U-shaped rib welding device, which includes an inner surface welding machine, a main body and a connecting device, the connecting device having one end connected to the inner surface welding machine, and the like. The end is connected to the main body, and the main body moves and drives the inner surface welder through the connecting device to move in and out of the U-shaped rib.

In the above technical proposal, the present invention may be improved as follows.

Further, the connecting device includes a connecting rod having a rigid structure, and the main body pushes and pulls the inner surface welding machine through the connecting rod, so that the connecting rod and the inner surface welding machine can move in and out of the U-shaped rib. Is.

Further, the connecting rod is a hollow rod that can be expanded and contracted.

Further, the connecting rod is a shaped steel.

Further, the connecting rod is tubular steel.

Further, the U-shaped rib welding device further includes a guide rail, and both the inner surface welding machine and the connecting rod are located on the guide rail and move along the guide rail.

Further, a roller is provided on the connecting rod, and the connecting rod moves along the guide rail by the roller.

Further, each connection line between the main body and the inner surface welder is installed along the connection rod.

Further, the connecting rod is a square steel pipe, and a part or all of the connecting lines penetrate the inside of the connecting rod.

The present invention further provides a welding system for U-shaped ribs, which includes a gantry, a work table, and a plurality of U-shaped rib welding devices, wherein the welding device is the welding device according to any one of the above. The gantry and the work table are located at both ends of the welding device, the connecting devices of the welding devices are arranged side by side, and the main body of each welding device is installed in the gantry.

The U-shaped rib welding device according to the present invention includes an inner surface welding machine, a main body, and a connecting device. One end of the connecting device is connected to the inner surface welding machine, the other end is connected to the main body, and the main body is connected via the connecting device. The inner surface welder is moved to move in and out of the U-shaped rib, and multiple types of lines are connected between the main body and the inner surface welder so that each line can be easily fixed. Each connecting line of the welder can be laid through a connecting device, which can keep each line fixed during welding and ensure normal operation of the inner surface welder.

The main body of the welding device moves and drives the inner surface welding machine to enter and exit the U-shaped rib via the connecting device, and each connection line between the main body and the inner surface welding machine is installed via the connecting device, and the main body is the main body. By supplying power, wire, gas and water to the inner surface welder via the connecting device, the welding conditions of the inner surface welder can be secured, and the welding operation inside the U-shaped rib by the inner surface welder can be realized. The inner surface welder welds the square seams inside the U-shaped ribs inside the U-shaped ribs, and can also realize double-sided welding of the U-shaped ribs, ensuring the quality of the weld line of the U-shaped ribs, and during outer surface welding. Defects such as incomplete penetration, poor fusion, and insufficient penetration depth that are likely to occur can be avoided, the welding quality of the weld line is improved, and the U-shaped rib and cover plate are used as a U-shaped rib unit with higher strength. Can be welded.

Since the U-shaped rib welding system according to the present invention includes a plurality of U-shaped rib welding devices, the above technical effects are also exhibited. In addition, multiple welding devices are installed side by side, the main body of each welding device is attached to the gantry together, and by driving each welding device in a traveling manner by the gantry, multiple U-shaped ribs can be welded at the same time, greatly improving welding efficiency. To improve.

The drawings are for a further understanding of the invention and are incorporated as part of the specification to interpret the invention with the following embodiments, but are not intended to limit the invention.

FIG. 1 is a schematic structural diagram of an embodiment of a U-shaped rib welding system according to the present invention. FIG. 2 is a schematic structural diagram of an embodiment of a U-shaped rib welding device according to the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. It should be noted that the embodiments described here are merely for explaining and interpreting the present invention, and do not limit the present invention.

As shown in FIGS. 1 and 2, FIG. 1 is a schematic structure diagram of an embodiment of a U-shaped rib welding system according to the present invention, and FIG. 2 is an embodiment of a U-shaped rib welding device according to the present invention. It is a structural schematic diagram of a form.

In order to improve the quality of the U-shaped rib weld line, double-sided welding is performed inside and outside the U-shaped rib weld line as one of the improvement methods. Since the structural space inside the U-shaped rib is long and narrow, how the welding gun enters the inside of the U-shaped rib, and how the welding gun enters the inside of the U-shaped rib and then continuously power and wire. , Whether to supply gas or water, etc. are currently technical issues that those skilled in the art should urgently resolve.

In one embodiment, the present invention provides a U-shaped rib welding device. The U-shaped rib welding device includes an inner surface welding machine 2, a main body 1, and a connecting device. One end of the connecting device is connected to the inner surface welding machine 2, the other end is connected to the main body 1, and the main body 1 is connected to the connecting device. The inner surface welding machine 2 can be moved to and from the U-shaped rib via the inner surface welding machine 2, and the connection lines of the main body 1 and the inner surface welding machine 2 can be laid via the connecting device.

Specifically, the connecting device includes a connecting rod 3 having a rigid structure. The main body 1 pushes and pulls the inner surface welding machine 2 through the connecting rod 3, and both the connecting rod 3 and the inner surface welding machine 2 can go in and out of the U-shaped rib.

Since the U-shaped rib is generally as long as several tens of meters, when the inner surface welding machine 2 enters the inside of the U-shaped rib and performs welding, it is necessary to travel the same distance as the length of the U-shaped rib. Since it is necessary to continuously supply power, gas, water, welding wire, etc. to the inner and inner surface welding machines, for example, a cable, a gas supply pipe, a wire supply pipe, and water supply are provided between the main body 1 and the inner surface welding machine 2. It is necessary to connect multiple lines such as pipes. It is impossible to wind these lines, especially the piping that supplies the welding wire, using a cable reel like a cable according to the change in distance, and even if it is possible, the welding quality of the inner surface welding machine is ensured. It's very difficult to do. On the other hand, the rigid structure connecting rod 3 can adjust the length to a length suitable for the U-shaped rib as needed, and the connecting rod 3 is fixed between the main body and the inner surface welder. By being attached and laying various lines along the connecting rod 3, the fixation of each line can be maintained from beginning to end, and various raw materials such as electric power, gas, water and welding wire required for welding on the inner surface welding machine, etc. Can be stably supplied, normal welding by the inner surface welding machine is ensured, and its stability and welding effect are effectively ensured.

Further, the connecting rod 3 is a hollow rod that can be expanded and contracted. Each line penetrates the hollow rod or is laid outside the hollow rod. The hollow rod may have a stretchable structure that can be adjusted according to the length of the U-shaped rib to meet more needs.

In one preferred embodiment, the connecting rod 3 may be a shaped steel such as, for example, an H-shaped steel, an I-shaped steel, a channel steel, a square steel pipe, a round steel pipe, or the like. Since these shaped steels have excellent rigidity, low cost, and good weldability, they are suitable for manufacturing the connecting rod 3. Among these shaped steels, tubular shaped steels are preferable. The tubular shaped steel is a hollow steel pipe, and examples thereof include a round steel pipe, a rectangular steel pipe, and a square steel pipe. In this way, various lines can be directly inserted into the steel pipe, not only satisfying the function of determining the interval, but also protecting each line. From the viewpoint of ease of installation, a square steel pipe or a rectangular steel pipe is most preferable. In the case of non-tubular steel such as channel steel, the line needs to be protected separately. For example, add a protective cover or similar device. In this case, it is necessary to separately consider the cost and installation work.

The main body 1 of the welding device moves and drives the inner surface welding machine 2 to enter and exit the U-shaped rib via the connecting device, and each connection line between the main body 1 and the inner surface welding machine 2 is installed by the connecting device, and the main body is installed. 1 supplies power, wire, gas and water to the inner surface welding machine 2 via the connecting device, and secures the welding conditions of the inner surface welding machine 2 to weld the inside of the U-shaped rib by the inner surface welding machine 2. Operation can be realized.

By installing the connecting device, various cables, pipes, welding wires, etc. required for the inner surface welding machine 2 may be installed in the connecting device, and some lines are provided in the connecting device, and some of them are provided. Line may be provided outside the connecting device. Alternatively, a line slot is installed and the line is installed by the connecting device and the line slot.

After the inner surface welding machine 2 is put into the U-shaped rib, the main body 1 can continuously supply the conditions necessary for welding to the inner surface welding machine 2, and the inner surface welding machine 2 is inside the U-shaped rib and inside the U-shaped rib. Square seams can be welded, double-sided welding of U-shaped ribs can be realized, the quality of the weld line of U-shaped ribs can be ensured, incomplete penetration, poor fusion, and insufficient penetration depth that are likely to occur during outer surface welding. It is possible to avoid defects such as the above, improve the welding quality of the weld line, and weld the U-shaped rib and the cover plate to form a U-shaped rib unit having higher strength.

The inner surface welder 2 includes a movable table that can move inside the U-shaped rib. Two welding guns are installed on the movable table, and the head portions of the two welding guns are located on both sides of the movable table, and the corner seams on both sides inside the U-shaped rib can be welded at the same time.

While the movable table is moving, two welding guns can weld the corner seams on both sides inside the U-shaped rib at the same time, and each time the movable table moves, the two welding lines inside the U-shaped rib unit are welded. It can be completed.

In one preferred embodiment, the connecting device comprises a rigidly structured connecting rod 3. The main body 1 pushes and pulls the inner surface welding machine 2 through the connecting rod 3, and each connection line between the main body 1 and the inner surface welding machine 2 is installed by the connecting rod 3.

The inner surface welder 2 and the main body 1 are connected by a connecting rod 3. When the inner surface welder 2 enters the inside of the U-shaped rib, the main body 1 presses the inner surface welder 2 via the connecting rod 3 to enter the U-shaped rib. When the inner surface welder 2 needs to move in the opposite direction, the main body 1 pulls the inner surface welder 2 in the opposite direction via the connecting rod 3. Since the connecting rod 3 has a rigid structure, is smooth when moving, and does not cause unstable movement such as warpage deformation and jitter, the connecting rod drives the inner surface welding machine 2 to cause the inner surface welding machine 2. Smooth movement during welding and further ensure welding quality. The connection rod 3 can smoothly move and drive the inner surface welder 2 from one end to the other inside the U-shaped rib.

Further, the main body 1 further supplies electric power, wires, gas and water to the inner surface welding machine 2 via the connecting rod 3 to provide the conditions necessary for welding. The connection rod 3 can not only send the inner surface welding machine 2 to the inside of the U-shaped rib, but also secure the welding conditions inside the U-shaped rib of the inner surface welding machine.

In a further embodiment, a connector 4 is provided at the bottom of the main body 1, and each connection line is integrated in the connector 4.

There are many connection lines between the main body 1 and the inner surface welder 2, and the connection rod 3 is long. In order to avoid disturbance when each connection line is installed by the connection rod 3, and to facilitate removal, the main body A connector 4 is installed in the lower part of 1, and each connection line is integrated in the connector 4 and arranged in a predetermined positional relationship, and the positional relationship of each connection line corresponds to the positional relationship of the inner surface welder 2 with respect to each connection line. Can be set, and the connection between the inner surface welding machine 2 and each connection line becomes easy.

In this case, a similar connector having an integrating action is also installed on one side of the inner surface welding machine 2.

In a more preferred embodiment, a push rod is provided on the underside of the connector 4.
The push rod is connected to the end of the connecting rod 3.

By connecting to the end of the connecting rod 3, the push rod can push and pull the connecting rod 3. The push rod and the end of the connecting rod 3 are connected by a flexible universal joint, or a buffer gap is provided at the connection point between them. Both the flexible universal joint and the buffer gap can absorb jitter and vibration during movement, and smooth movement of the connecting rod 3 can be ensured so as not to interfere with the welding process of the inner surface welding machine 2. The inner surface welder and the connecting rod also have a universal joint, and its principle and operation are the same as above. That is, universal joints or shock absorbers may be installed at both ends of the connecting rod so as to ensure smooth welding of the inner surface welding machine 2 during welding.

In each of the above embodiments, the welding apparatus further includes a guide rail 5. The inner surface welder 2, the main body 1, and the connecting rod 3 are all located on the guide rail 5 and move along the guide rail 5.

In the welding device, the inner surface welding machine 2, the main body 1 and the connecting rod 3 all move along the guide rail 5, and the moving speed can be controlled, so that the movement is continuous and smooth, and the inner surface welding machine 2 Ensure stability during welding and further ensure welding quality.

In one preferred embodiment, the connecting rod 3 is a hollow rigid rod of fixed length.

The connection rod 3 has a hollow structure, and a connection line between the main body 1 and the inner surface welder 2 can be arranged inside the connection rod 3. Further, the connecting rod 3 has a rigid structure having a fixed length. When the inner surface welder 2 needs to enter the inside of the U-shaped rib, it is pushed by the connecting rod 3, and in this process, one end of the connecting rod 3 connected to the inner surface welder 2 is also U-shaped rib together with the inner surface welder 2. Go inside. During welding inside the U-shaped rib by the inner surface welding machine 2, the supply of current, gas, water and welding wire is secured through the connecting rod 3.

In a further embodiment, a roller 6 is provided below the connecting rod 3, and the connecting rod 3 is moved by the roller 6 along the guide rail 5. Of course, the rollers 6 may be installed on both sides of the connecting rod 3 to ensure further stability of running, or may be installed on both sides or on the lower side.

During welding, the entire connecting rod 3 moves with the movement of the main body 1 and the inner surface welding machine 2, the U-shaped rib is long, and the connecting rod 3 sends the inner surface welding machine 2 from one end to the other end of the U-shaped rib. Since it is necessary, the length of the connecting rod 3 is also long, and in order to facilitate the movement of the connecting rod 3, a roller 6 is installed under the connecting rod 3, and the roller 6 moves on the guide rail 5. , The frictional force during movement is reduced, and the power supplied from the main body 1 is reduced.

In another preferred embodiment, the connecting rod 3 is a stretchable hollow rod.

The connection rod 3 has a hollow structure, and a connection line between the main body 1 and the inner surface welder 2 is arranged inside the connection rod 3. Further, the connecting rod 3 has a structure that can be expanded and contracted. The connecting rod 3 is composed of segments having a plurality of rigid structures, and the length of the connecting rod 3 can be automatically adjusted according to an actual situation while driving the inner surface welding machine 2.

In a further embodiment, the power mechanism is provided on one side of the connecting rod 3 close to the inner surface welder 2 or on one of the inner surface welders 2.

Since the connecting rod 3 has a structure that can be expanded and contracted, the power to drive the inner surface welding machine 2 into and out of the U-shaped rib by the connecting rod 3 or the inner surface welding machine 2 so that the inner surface welding machine 2 can be easily driven. The mechanism is installed.

Of course, the inner surface welding machine 2 may be driven by the structure of the connecting rod 3.

In addition to the welding apparatus described above, the invention further provides a welding system for U-shaped ribs. The U-shaped rib welding system includes a gantry 100, a work table 200, and a plurality of U-shaped rib welding devices. The welding device is a welding device according to each of the above embodiments, and the gantry 100 and the work table 200 are located at both ends of the welding device, respectively. The connecting devices of each welding device are arranged side by side, and the main body 1 of each welding device is installed in the gantry 100.

Depending on the number of U-shaped ribs that are workpieces, the number of connecting rods 3, the inner surface welder 2, and the guide rails 5 may be one or more, and can be individually controlled.

During the operation of the welding device, a plurality of U-shaped ribs are positioned and clamped on the work table 200, and then the connecting device and the inner surface welding machine 2 are driven by the gantry 100, and each inner surface welding machine 2 is each U-shaped. By welding the U-shaped ribs into the inside of the ribs at the same time, double-sided welding of the U-shaped ribs can be realized, and not only the quality of the weld line of the U-shaped ribs can be ensured, but also multiple U-shaped ribs can be welded at the same time. Greatly improves welding efficiency.

Although embodiments have been illustrated above to explain the principle of the present invention, the utility model is not limited thereto. For those skilled in the art, various modifications and improvements can be made without departing from the concept and purpose of the present invention, and these modifications and improvements also belong to the scope of protection of the present invention.

Main body 1; Inner surface welder 2; Connection rod 3; Connector 4; Guide rail 5; Roller 6; Gantry 100; Work table 200.

Claims (8)

It includes an inner surface welder (2), a main body (1), and a connecting device. One end of the connecting device is connected to the inner surface welder (2), the other end is connected to the main body (1), and the main body (1) is connected. ) Moves and drives the inner surface welding machine (2) via the connecting device to move it in and out of the U-shaped rib .
The connecting device includes a connecting rod (3) having a rigid structure.
Each connection line between the main body (1) and the inner surface welder (2) is installed along the connection rod (3).
The connecting rod (3) is a square steel pipe, and a part or all of the connecting lines penetrate the inside of the connecting rod (3).
A connector (4) is provided at the lower part of the main body (1), and each connection line is integrated in the connector (4).
A push rod is provided on the lower side of the connector (4).
A U-shaped rib welding device characterized in that the push rod and the end portion of the connecting rod (3) are connected by a flexible universal joint . The main body (1) pushes and pulls the inner surface welder (2) via the connection rod (3), and both the connection rod (3) and the inner surface welder (2) have U-shaped ribs. The U-shaped rib welding device according to claim 1, wherein the U-shaped rib welding device is capable of entering and exiting the inside. The U-shaped rib welding device according to claim 2, wherein the connecting rod (3) is a stretchable hollow rod. The U-shaped rib welding device according to claim 2, wherein the connecting rod (3) is a shaped steel. The U-shaped rib welding device according to claim 4, wherein the connecting rod (3) is made of tubular steel. The U-shaped rib welding device further includes a guide rail (5), and the inner surface welding machine (2) and the connecting rod (3) are both located on the guide rail (5) and the guide rail (5). The U-shaped rib welding apparatus according to any one of claims 2 to 5, wherein the U-shaped rib is moved along the same. The sixth aspect of claim 6, wherein the connecting rod (3) is provided with a roller (6), and the connecting rod (3) is moved along the guide rail (5) by the roller (6). U-shaped rib welding equipment. A gantry (100), a work table (200), and a plurality of U-shaped rib welding devices according to any one of claims 1 to 7 are provided, and the gantry (100) and the work table (200) are respectively provided. A U-shaped rib located at both ends of the welding device, the connecting devices of the welding devices are arranged side by side, and the main body (1) of each welding device is installed in the gantry (100). Welding system.