KR100600677B1 - Cleaning apparatus for welding nozzle - Google Patents

Abstract

The present invention relates to a cleaning apparatus for a welding nozzle which can prevent welding by automatically removing welding slag mainly generated in a torch nozzle for a gas welder during gas welding. The cleaning apparatus of the present invention includes a rotating body installed on a table and rotated by a motor, and a brush member detachably installed on the rotating body and inserted into the nozzle to remove slag from the inner circumferential surface of the nozzle and the outer circumferential surface of the wire tip. can do. According to this configuration, the welding nozzle can be easily cleaned and the welding slag attached can be removed without damaging the nozzle.

Welding, slag, nozzle

Description

Cleaning apparatus for welding nozzle

1 is a perspective view showing a cleaning apparatus of a welding nozzle according to the present invention.

2 is a front view showing the cleaning apparatus of the welding nozzle according to the present invention.

Figure 3 is an enlarged cross-sectional view of the main portion showing a brush and a rotating body in the cleaning device of the welding nozzle according to the present invention.

4 and 5 are views for explaining the cleaning process of the welding nozzle.

Explanation of symbols on the main parts of the drawings

10: welding nozzle

110: table

120: rotating body

140: coil spring

The present invention relates to a cleaning apparatus for a welding nozzle used for robot welding, and more particularly, to a welding nozzle capable of preventing fusion by automatically removing welding slag mainly generated in a torch nozzle for a gas welder during gas welding. It relates to a cleaning device.

Carbon dioxide (CO2) gas welding method is a method in which CO2 is released by inert gas to cut off the welding part from the atmosphere, and the welding wire is transferred therein to produce a welding base material and a discharge phenomenon using the electrode as an electrode.

In particular, the robot welding used for welding automotive parts mainly uses a torch nozzle for a CO2 welder, and the larger the welding quantity, the higher the frequency of use of the torch nozzle for the CO2 welder. The torch nozzle for the CO2 welder in the welding using such a robot is configured in a cylindrical shape, the inside is a wire tip for supplying a wire. CO2 gas is discharged toward the weld through the space between the wire tip and the torch nozzle to block the weld from the atmosphere.

However, the conventional torch nozzle for carbonic acid gas welder as described above has a phenomenon such as twisting of the wire due to poor welding quality due to weld slag which is amorphous dregs mainly generated during welding and fused slag. There has been a drawback that the wire tips have to be replaced.

In order to solve this problem, conventionally, the end of the wire is manually cut by the worker to satisfy the welding condition, or the torch nozzle and the wire tip are frequently replaced when welding due to the accumulation of slag.

SUMMARY OF THE INVENTION An object of the present invention is to provide a cleaning device for a welding nozzle which can extend the life of the nozzle by automatically removing the welding slag mainly generated in the nozzle for the welding machine, thereby eliminating the cause of the welding failure. It is an object of the present invention to provide a cleaning apparatus for a welding nozzle which can simply clean the nozzle and can remove the welding slag attached without damaging the nozzle. It is an object of the present invention to provide a cleaning apparatus for a welding nozzle which can minimize damage to the nozzle.

The cleaning apparatus of the welding nozzle of the present invention for achieving the above object is a table, a rotating body installed on the table and rotated by a motor; It may include a brush member detachably installed on the rotating body and inserted into the nozzle to remove slag of the inner circumferential surface of the nozzle and the outer circumferential surface of the wire tip.

According to an embodiment of the present invention, the brush member may be a coil spring.

According to an embodiment of the present invention, the rotating body has a connecting portion connected to the motor at the bottom; The upper end of the coil spring may be fitted with a fitting portion is fixed.

According to an embodiment of the present invention, the rotating body forms a cutout groove in a direction perpendicular to the fitting portion so that foreign matter falling from the nozzle is discharged out of the coil spring, and foreign matter is taken out from the cutout groove at a lower end of the cutout groove. The through hole may be formed to flow down.

According to an embodiment of the present invention, the table has a discharge hole through which the foreign matter, such as slag accumulated on the table bottom away from the nozzle by the brush member is discharged, foreign matter discharged through the discharge hole below the table It may further include a collecting container for collecting them.

According to an embodiment of the present invention, the cleaning device for the nozzle for the welder may be further provided with an oil barrel installed on the table and soaking the nozzle to apply oil to the nozzle.

According to an embodiment of the invention, the table is supported by a column from the ground, the column may be adjustable in height.

For example, embodiments of the present invention may be modified in various forms, and the scope of the present invention should not be construed as being limited by the embodiments described below. This embodiment is provided to more completely explain the present invention to those skilled in the art. Accordingly, the shape of the elements in the drawings and the like are exaggerated to emphasize a clearer description.

Exemplary embodiments of the present invention will be described in detail with reference to FIGS. 1 to 5. In addition, in the drawings, the same reference numerals are denoted together for components that perform the same function.

The basic intention of the present invention is to provide a cleaning device for a welding machine nozzle which can automatically improve the welding quality and productivity by automatically removing the welding slag mainly generated in the torch nozzle for the gas welder during gas welding. The nozzle cleaning apparatus for welders of the present invention is characterized by removing the slag in the nozzle inside the nozzle using a coil spring-type brush.

1 is a perspective view showing a cleaning apparatus of a welding nozzle according to the present invention. 2 is a front view showing the cleaning apparatus of the welding nozzle according to the present invention.

1 and 2, the welding nozzle cleaning apparatus 100 of the present invention includes a table 110, a rotating body 120, and a coil spring 140 that is a brush member.

Table 110 is a stand type (stand) is installed on the support (102) fixed to the ground by an anchor bolt (anchor bolt) or the like. The strut 102 has a double tube structure consisting of an outer tube 104 and an inner tube 106 so that the height can be adjusted, and two fixing bolts 108 for fixing the height are provided at the top.

The table 110 has a flat bottom portion 112 and a protrusion 114 projecting upward by being caught by the edge of the bottom portion 112. The bottom part 112 accumulates welding residues (such as foreign substances) and waste oil removed from the welding nozzle 10 by the coil spring 140, which are discharged through the discharge port 116 formed in the bottom part 112. It is contained in the waste oil receiving container 180 disposed below the table 110. In this embodiment, the bottom of the table 110 is shown and described as being flat, but this is only one example, and the most preferable table bottom structure is formed such that the bottom portion is inclined so that foreign substances such as welding dregs naturally flow into the discharge port 116. Will be. On the other hand, one side of the table 110 is provided with an oil barrel 119 in which the welding nozzle 10 is immersed. The oil barrel 119 is filled with oil, and the welding nozzle is immersed in the oil barrel 119 before slag removal (or after slag removal).

Figure 3 is an enlarged cross-sectional view showing the main portion showing the brush and the rotating body in the cleaning device of the welding nozzle according to the present invention.

1 and 3, the rotor 120 is rotated by a motor 170 installed on the bottom surface of the table 110. This motor 170 may be controlled by the speed controller 172. The rotating body 120 has a connection part 122 connected to the motor 170, a fitting part 126 to which the lower end of the coil spring 140, which is a brush member, is fitted and fixed to the upper part, and an inclined upper surface under the fitting part 126. A central portion 124 having 124a. The central portion 124 is supported by a support member 160 such as a bearing installed on the table, which enables stable rotation. The reason why the upper surface 124a of the central portion 124 is inclined is to allow the debris falling from the coil spring 140 and the welding nozzle 10 to flow down well. In particular, the fitting portion 126 of the rotating body 120 is formed with a cutting groove 127 in a direction perpendicular to the fitting portion 126 so that foreign matter falling from the welding nozzle 10 is discharged out of the coil spring 140. The through hole 128 is formed at the lower end of the cutting groove 127 so that foreign matter flows out from the cutting groove 127. As shown in FIG. 5, the end of the wire tip 14 may be inserted into the cutout groove 127 of the fitting portion 126 in the cleaning process, and the wire may also be located in the cutout groove. As the rotor 120 has such a structure, foreign substances removed from the welding nozzle 10 by the coil spring 140 naturally flow out of the rotor and are collected at the bottom of the table 110.

The coil spring 140 installed in the fitting portion 126 of the rotating body 120 is detachably installed from the rotating body 120. In particular, since the lower end 142 of the coil spring 140 is fitted into the cutout groove 127 of the fitting portion, it is not separated from the rotating body 120 during the rotation. The reason why the brush member is formed of the coil spring 140 is not only a structure that is inserted into the welding nozzle 10 to remove slag of the inner circumferential surface 12 of the welding nozzle and the outer circumferential surface of the wire tip 14, but also the coil Since the spring 140 itself has elasticity, it has an advantage of obtaining the maximum cleaning effect without damaging the inner circumferential surface 12 of the welding nozzle 12 and the outer circumferential surface of the wire tip 14 to a minimum.

If the cleaning device 100 of the welding nozzle according to the present invention is installed and used under the position where the welding nozzle 10 of the industrial welding robot waits, the welding nozzle 10 of the industrial welding robot automatically waits after the welding is finished. It can wash by (or every fixed period).

Looking at the operating state of the cleaning device of the welding nozzle having the configuration as described above are as follows.

As shown in Figures 4 and 5, the welding nozzle 10 of the industrial welding robot is finished after the welding is moved to the upper table 110 of the cleaning device 100 is a waiting place to perform the welding slag removal work.

4 and 5, the welding nozzle 10 first enters and exits the oil barrel 119 to bury the oil. The oil-welded welding nozzle 10 is moved above the coil spring 140. 5, the welding nozzle 10 is slowly lowered in the direction of the arrow so that the coil spring 140 is inserted into the welding nozzle 10. The coil spring 140 rotated by the driving of the motor 170 is inserted into the welding nozzle 10 to remove slag on the inner circumferential surface 12 of the welding nozzle 10 and the outer circumferential surface of the wire tip 14. Some of the debris (slag, oil, etc.) removed from the welding nozzle 10 by the coil spring 140 falls to the bottom of the table 110, and some of the rotor 120 located inside the coil spring 140 Falling to the fitting portion 126. The debris dropped to the fitting portion 126 of the rotating body flows down along the cutting groove 127 of the fitting portion and exits out of the rotating body 120 through the through hole 128 at the end of the cutting groove 127. The debris collected at the bottom of the table 110 is collected in the waste oil collecting container 180 through the discharge port 116.

The present invention can be variously modified and the cleaning apparatus of the welding nozzle having the above configuration can take various forms. It is to be understood, however, that the present invention is not limited to the specific forms referred to in the above description, but rather includes all modifications, equivalents and substitutions within the spirit and scope of the invention as defined by the appended claims. It should be understood to do.

As described above, the cleaning device of the welding nozzle of the present invention has a special effect that can extend the life of the nozzle by automatically removing the welding slag to remove the cause of the welding failure. The cleaning apparatus of the welding nozzle of the present invention can not only clean the nozzle simply but also have a special effect of removing the welding slag attached without damaging the nozzle.

Claims (7)

In the cleaning device for the nozzle for the welder: table; A rotating body installed on the table and rotated by a motor; And And a brush member detachably installed on the rotating body and inserted into the nozzle while rotating to remove slag from the inner circumferential surface of the nozzle and the outer circumferential surface of the wire tip. The method of claim 1, The brush member is a cleaning device for a nozzle for a welder, characterized in that it comprises a coil spring. The method of claim 2, The rotating body is A connection part connected to the motor at a lower end thereof; Cleaning device for a nozzle for a welder, characterized in that the upper end has a fitting portion to which the lower end of the coil spring is fitted. The method of claim 3, The rotating body forms a cutting groove in a direction perpendicular to the fitting portion so that foreign matter falling from the nozzle is discharged out of the coil spring, and a through hole is formed at the lower end of the cutting groove so that foreign matter flows out from the cutting groove. The cleaning apparatus of the nozzle for welders characterized by the above-mentioned. The method of claim 2, The table has a discharge hole through which the foreign matter such as slag accumulated on the table bottom away from the nozzle by the brush member is discharged, The cleaning device of the nozzle for the welder under the table further comprises a waste oil container for collecting the foreign substances discharged through the discharge hole. The method of claim 2, The cleaning device of the nozzle for the welder And an oil barrel installed on the table to soak the nozzle and to apply oil to the nozzle. The method of claim 2, The table is supported by a column from the ground, the pillar is cleaning device of the nozzle for a welder, characterized in that the height can be adjusted.

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