CN110560851A - A magnetic fixed guide device for submerged arc automatic welding - Google Patents

Abstract

The invention relates to a magnetic fixed guide device for automatic submerged arc welding, which comprises a guide rail mechanism and two guide rods arranged on one side of a welding wire feeder, wherein the guide rail mechanism extends along a set straight line, and the side surface of the guide rail mechanism is provided with a guide groove. And a positioning magnet assembly group is fixedly arranged on the bottom surface of the guide rail mechanism and can be fixed with a workpiece with ferromagnetism through magnetic force. And a guide wheel is arranged at one end of the guide rod, which is far away from the welding wire feeder, and the guide wheel is arranged in the guide groove. The guide rail mechanism is composed of a plurality of sections of guide rails which are connected through a combined interface. The combined interface comprises a connecting plate, and the connecting plate can fix two adjacent guide rails. The invention can solve the problems that the straightness of the section steel influences the quality of a welding seam, the time is wasted in the process of welding and fixing the section steel and a workpiece, the section steel is inconvenient to carry and adjust and the like when the section steel is used for guiding.

Description

A magnetic fixed guide device for submerged arc automatic welding

technical field

The invention belongs to the field of welding technology, in particular to a magnetic fixing guide device for submerged arc automatic welding.

Background technique

Semi-automatic submerged arc welding uses its own driving device to drive four wheels to walk. It is difficult to maintain accurate straight line welding when welding long straight welds, and defects such as weld deviation are prone to occur.

The inventor understands that the current more common solution is to use profiled steel and other profiled steel guides (as shown in Figure 1 of the specification), but the linearity of the weld is also affected by the straightness of the profiled steel 1 itself, and the profiled steel and the workpiece need to be connected during use. Welding fixed to use.

At the same time, the traditional method has problems such as inappropriate selection of section steel, heavy handling and adjustment, and additional work.

Contents of the invention

The purpose of the present invention is to provide a magnetic fixed guide device for submerged arc automatic welding, which solves the problem that the straightness of the shaped steel affects the quality of the weld seam when the shaped steel is used for guiding, the time-consuming process of welding and fixing the shaped steel and the workpiece is wasted, and the handling and adjustment of the shaped steel are inconvenient And other issues.

In order to achieve the above object, the present invention adopts the following technical solutions: a magnetic fixed guide device for submerged arc automatic welding, including a guide rail mechanism and two guide rods installed on one side of the welding wire feeder, the guide rail mechanism is set along the Extending in a straight line, the side of the guide rail mechanism is provided with guide grooves.

The bottom surface of the rail mechanism is fixed with a positioning magnet assembly group, and the positioning magnet assembly group can be magnetically fixed with a ferromagnetic workpiece.

A guide wheel is installed on the end of the guide rod far away from the welding wire feeder, and the guide wheel is arranged in the guide groove.

The positioning between the guide rail mechanism and the workpiece is realized by using the positioning magnet assembly group. Compared with the welding positioning, it saves supply and demand for the welding work of the welder, and the magnetic connection is a detachable connection. Compared with the welding positioning of the steel and the workpiece In other words, the rail mechanism can be removed from above the workpiece after the long straight weld has been welded without causing damage to the surface of the workpiece.

Further, the guide rail mechanism is composed of multiple sections of guide rails, and the multiple sections of guide rails are connected through combined interfaces.

The way that the guide rail mechanism is composed of multiple sections of guide rails can change the overall length of the guide rail mechanism through the combination of multiple sections of guide rails, and then adapt to long straight welds of different lengths, avoiding the bulky and inconvenient transportation caused by handling longer steel sections.

Further, the number of the positioning magnet assembly groups is multiple, and the multiple positioning magnet assembly groups are evenly distributed under the guide rail mechanism.

By adopting multiple positioning magnet assembly groups, the adsorption force between the guide rail mechanism and the workpiece to be welded can be increased.

Further, each positioning magnet assembly group includes two positioning magnet assemblies, the two positioning magnet assemblies are connected by a connecting rod, and a magnet switch is connected to the upper end surface of the positioning magnet assembly.

Each positioning magnet assembly group includes two positioning magnet assemblies, and multiple positioning magnet assembly groups can be used to realize the support of the guide rail mechanism, so that there is a certain suspended distance between the guide rail mechanism and the workpiece. Avoid the influence of the uneven surface of the workpiece on the positioning of the guide rail mechanism.

Further, the extension direction of the guide rod is perpendicular to the extension direction of the guide rail, and the rotation direction of the guide wheel is the same as the forward direction of the welding wire feeder.

Further, the positioning magnet assembly is an electromagnet, and the electromagnet controls the on-off of the current in the positioning magnet assembly through a magnet switch to control the magnetism of the magnet.

The electromagnet is used as the positioning magnet assembly, and the magnetic force of the positioning magnet assembly can be controlled by controlling the magnitude and on-off of the current in the electromagnet, and then the positioning and removal between the guide rail mechanism and the workpiece can be quickly realized.

Further, the positioning magnet assembly is a magnetic holder, the lower end of the magnetic holder is a magnetic base, the magnetic base is provided with a permanent magnet, the outside of the magnetic holder is provided with a wrench, and the wrench can drive the permanent magnet on the magnetic base. The rotation of the wrench switch changes the distribution of its internal magnetic flux lines to control whether there is magnetic force, so as to realize the adjustment of the magnetic force at the bottom of the magnetic base.

Beneficial effects of the present invention:

1) The positioning magnet assembly group is used to realize the positioning between the guide rail mechanism and the workpiece. Compared with the welding positioning, it saves supply and demand for the welding work of the welder, and the magnetic connection is a detachable connection. Compared with the welding of steel and workpiece In terms of positioning, the guide rail mechanism can be removed from above the workpiece after the long straight weld has been welded without causing damage to the surface of the workpiece.

2) Adopting the way that the guide rail mechanism is composed of multiple sections of guide rails, the overall length of the guide rail mechanism can be changed through the combination of multiple sections of guide rails, thereby adapting to long straight welds of different lengths, and avoiding the bulky and inconvenient transportation caused by handling longer section steel .

3) The use of multiple positioning magnet assembly groups can increase the adsorption force between the guide rail mechanism and the workpiece to be welded.

4) Each positioning magnet assembly group includes two positioning magnet assemblies, and multiple positioning magnet assembly groups can be used to support the guide rail mechanism, so that there is a certain suspended distance between the guide rail mechanism and the workpiece. Avoid the influence of the uneven surface of the workpiece on the positioning of the guide rail mechanism.

5) The electromagnet is used as the positioning magnet assembly, which can control the magnetic force of the positioning magnet assembly by controlling the magnitude and on-off of the current in the electromagnet, and then quickly realize the positioning and removal between the guide rail mechanism and the workpiece.

6) The magnetic fixer is used as the positioning magnet assembly, which can control whether there is a magnetic force by controlling the distribution of the magnetic flux lines in the permanent magnet.

Description of drawings

The accompanying drawings constituting a part of the present application are used to provide further understanding of the present application, and the schematic embodiments and descriptions of the present application are used to explain the present application and not to limit the present application.

Fig. 1 is the structural representation of guiding device in the prior art;

Fig. 2 is a schematic structural view of setting a guide rod on a welding wire feeder in an embodiment of the present invention;

Fig. 3 is a schematic structural diagram of the overall device used in conjunction with the welding wire feeder in the embodiment of the present invention;

FIG. 4 is a schematic structural diagram of a combination interface in an embodiment of the present invention;

Fig. 5 is a schematic diagram of a plurality of guide rails connected through a combination interface in an embodiment of the present invention;

Fig. 6 is a structural schematic diagram of the positioning magnet assembly group in the embodiment of the present invention

In the figure: 1. Section steel; 2. Guide rod; 3. Guide wheel; 4. Guide rail; 5. Wrench; 6. Connecting plate; 7. Magnetic base; 8. Bolt.

Detailed ways

It should be pointed out that the following detailed description is exemplary and intended to provide further explanation to the present application. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

It should be noted that the terminology used here is only for describing specific implementations, and is not intended to limit the exemplary implementations according to the present application. As used herein, unless the context clearly dictates otherwise, the singular is intended to include the plural, and it should also be understood that when the terms "comprising" and/or "comprising" are used in this specification, they mean There are features, steps, operations, means, components and/or combinations thereof.

Among the submerged arc automatic welding workpieces targeted by this scheme, one of the workpieces to be welded should be a flat plate structure, so that the wire feeder can move and the guide rail is magnetically fixed on the surface of the workpiece to be welded. At the same time, the weld seam of automatic submerged arc welding shall be a straight weld seam.

In a typical implementation of the present invention, as shown in Fig. 2-6, a magnetic fixed guide device for submerged arc automatic welding includes a guide rail 4 mechanism and two guide rods 2 installed on one side of the welding wire feeder, The guide rail 4 mechanism extends along a set straight line, and guide grooves are provided on the side of the guide rail 4 mechanism.

The bottom surface of the guide rail 4 mechanism is fixed with a positioning magnet assembly group, and the positioning magnet assembly group can be fixed with a ferromagnetic workpiece by magnetic force.

A guide wheel 3 is installed on the end of the guide rod 2 away from the wire feeder, and the guide wheel 3 is arranged in a guide groove.

Specifically, the guide rod 2 may adopt an aluminum alloy structure.

The guide rail 4 mechanism is composed of multiple sections of guide rails 4, and the multiple sections of guide rails 4 are connected through combined interfaces.

The combined interface includes a connecting plate 6 capable of fixing two adjacent guide rails 4 .

The connecting plate 6 is fixedly connected with the guide rail through bolts 8 .

There are multiple positioning magnet assembly groups, and the multiple positioning magnet assembly groups are evenly distributed under the guide rail 4 mechanism.

Each positioning magnet assembly group includes two positioning magnet assemblies, the two positioning magnet assemblies are connected by connecting rods, and a magnet switch 5 is connected to the upper end surface of the positioning magnet assembly.

The extension direction of the guide rod 2 is perpendicular to the extension direction of the guide rail 4, and the rotation direction of the guide wheel 3 is the same as the forward direction of the welding wire feeder. Two guide rods 2 are arranged parallel to each other.

The positioning magnet assembly is an electromagnet, and the electromagnet controls the on-off of the current in the positioning magnet assembly through the magnet switch 5 to control the magnetism of the magnet.

In some other embodiments, the positioning magnet assembly is a magnetic holder, the lower end of the magnetic holder is a magnetic base 7, the magnetic base is provided with a permanent magnet, and a wrench is provided outside the magnetic holder, and the wrench can Drive the rotation of the permanent magnet in the magnetic base to realize the adjustment of the magnetic force at the bottom of the magnetic base.

Magnetic holders for welding are produced on the market, which are used to achieve pre-welding pre-positioning between a plurality of ferromagnetic sheet parts. The magnetic fixer of this solution can adopt existing products, and the specific internal structure setting and working principle will not be repeated here.

Working principle: When in use, two guide rods 2 are welded on both sides of the wire feeder, and guide wheels 3 are set at the ends of the two guide rods 2 .

Then select a suitable number of guide rails 4 according to the length of the long straight weld. If the number of guide rails 4 is multiple, a plurality of guide rails 4 are fixedly connected through a combined structure, and then the guide rails 4 are arranged in a direction parallel to the long straight weld. The positioning between the guide rail 4 mechanism and the workpiece is realized by using the positioning magnet assembly.

Extend the guide wheel into the guide groove of the guide rail 4, the welding wire feeder advances along the guide of the guide rail 4, and the welding machine realizes welding synchronously.

Although the specific implementation of the present invention has been described above in conjunction with the accompanying drawings, it does not limit the protection scope of the present invention. Those skilled in the art should understand that on the basis of the technical solution of the present invention, those skilled in the art do not need to pay creative work Various modifications or variations that can be made are still within the protection scope of the present invention.

Claims (9)

1. A magnetic fixed guide device for submerged arc automatic welding, characterized in that, comprising, A guide rail mechanism, the guide rail mechanism extends along a set straight line, the side of the guide rail mechanism is provided with a guide groove, the bottom surface of the guide rail mechanism is fixedly provided with a positioning magnet assembly group, and the positioning magnet assembly group can be combined with a ferromagnetic The workpiece is fixed by magnetic force; Two guide rods installed on one side of the welding wire feeder, guide wheels are installed on the end of the guide rods far away from the welding wire feeder, and the guide wheels are arranged in the guide grooves. 2. The magnetic fixed guide device for submerged arc automatic welding according to claim 1, wherein the guide rail mechanism is composed of multiple guide rails, and the multiple guide rails are connected through combined interfaces. 3 . The magnetic fixing guide device for submerged arc automatic welding according to claim 3 , wherein the combination interface includes a connecting plate, and the connecting plate can fix two adjacent guide rails. 4 . 4. The magnetic fixing and guiding device for submerged arc automatic welding according to claim 1, characterized in that there are multiple positioning magnet assembly groups, and the multiple positioning magnet assembly groups are evenly distributed under the guide rail mechanism. 5. The magnetic fixed guide device for submerged arc automatic welding according to claim 1, wherein each positioning magnet assembly group includes two positioning magnet assemblies, and the two positioning magnet assemblies are connected by a connecting rod, the The upper end surface of the positioning magnet assembly is connected with a magnet switch. 6. The magnetic fixed guide device for submerged arc automatic welding according to claim 1, wherein the extension direction of the guide rod is perpendicular to the extension direction of the guide rail, and the rotation direction of the guide wheel is perpendicular to the advancing direction of the welding wire feeder. same. 7. The magnetic fixed guide device for submerged arc automatic welding according to claim 6, wherein the two guide rods are arranged parallel to each other. 8. The magnetic fixed guide device for submerged arc automatic welding according to claim 1, characterized in that the positioning magnet assembly is an electromagnet, and the electromagnet controls the on-off of the current in the positioning magnet assembly through a magnet switch and then controls the magnet. magnetic. 9. The magnetic fixing and guiding device for submerged arc automatic welding according to claim 1, wherein the positioning magnet assembly is a magnetic holder, the lower end of the magnetic holder is a magnetic base, and the magnetic base is provided with a permanent magnet, A wrench is provided on the outside of the magnetic holder, and the wrench can drive the rotation of the permanent magnet in the magnetic base to realize the adjustment of the magnetic force at the bottom of the magnetic base.