JP3079881U - Nozzle for torch of semi-automatic welding machine - Google Patents

Abstract

(57) [Summary] [Problem] To reduce the adhesion rate of spatter that adheres to the tip end of a nozzle of a welding torch and closes the tip end, easily removes the spatter, improves weldability and workability, and simplifies maintenance. And
Further, the present invention aims to be inexpensive and applicable to various kinds of welding torches. A tip end of a nozzle is formed to have an angled inside, so that spatter adhesion is significantly reduced.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs] Nozzle for torch of semi-automatic welding machine

[0002]

2. Description of the Related Art In a semi-automatic welding machine, spatter generated during welding adheres to a nozzle or a tip at the tip of a torch, and eventually forms a layer, which blocks a nozzle and a tip, thereby significantly reducing welding efficiency. The spatter easily adheres and deposits on the tip of the nozzle, is difficult to remove, and has poor workability.

[0003] In order to make the spatter less likely to adhere, various methods are conceivable, such as reducing the thickness of the opening at the tip end of the nozzle, using a spatter adhesion preventive agent, or preventing the adhesion by air blowing. ing.

[0004]

[Problems to be Solved by the Invention] Spatters generated and scattered during welding are apt to adhere, and in particular, the adhered material forms a layer inside the nozzle and deposits between the chip and the tip of the nozzle. Will close up. In addition, they are frequently closed, and the deposited spatter is difficult to remove.

[0005] The use of a spatter anti-adhesion agent is effective, but it is necessary to apply it many times or to wash it after welding. If not, it is a must. In addition, other existing methods are not perfect, and there is a need for higher weldability and workability, and a method that is cheaper and can be applied to many models.

[0006]

[Means for Solving the Problems] Since spatters rebounding from the welding surface are scattered radially, the conventional nozzles adhere more to the inside than to the outside of the nozzle, and particularly to a range of about 5 mm from the tip end. First, since it is easy to adhere and accumulate, it is easy to close the gap between the nozzle and the chip.

In the present invention, the spatter radiated radially is hardly attached to the inside of the nozzle by making the tip end of the nozzle an angle inward.

[0008]

BEST MODE FOR CARRYING OUT THE INVENTION The tip end of a nozzle is formed to have an angled inside.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An example in which the tip end of the nozzle is angled inward as shown in FIG.

FIG. 2 shows an example in which the tip of the nozzle is formed in an abacus shape and is angled.

FIG. 3 shows an example in which the tip of the nozzle is formed in a spherical shape and is angled.

FIG. 4 shows an example in which the tip of the nozzle is formed in a square shape and is angled.

[0013]

[Effects of the Invention] Spatter that has become small spheres and scatters does not directly adhere to the outside or inside of the cornered portion of the tip opening, but rolls through. The sputter that travels deep inside the nozzle gradually cools down while flying and hardens, rolls between the nozzle and chip without adhering, and tends to fall out of the nozzle. Therefore, the adhesion rate of both the squared tip opening portion and the inside of the nozzle is significantly reduced, and the deposition is difficult.

The sputter deposited and deposited has a much lower degree of deposition than the conventional sputter deposited and deposited on a nozzle, and the deposited layer is thin, so that it can be easily removed.

[0015] As a result, the adhesion and deposition of spatter are significantly reduced, so that not only the weldability and workability are improved, but also the cleaning and maintenance of the nozzle can be completed easily in a short time. The running cost can be reduced because it does not damage the vehicle.

Further, since only the shape of the tip portion of the nozzle is changed, there is almost no change in cost from the conventional one, and it can be applied to many models.

[0017]

[Brief description of the drawings]

FIG. 1 is a cross-sectional view showing an example in which a tip end of a nozzle is angled inward.

FIG. 2 is a sectional view showing an example in which the tip of a nozzle is formed in an abacus shape.

FIG. 3 is a sectional view showing an example in which the tip of a nozzle is formed in a spherical shape.

FIG. 4 is a sectional view showing an example in which the tip of a nozzle is formed in a square shape.

[Explanation of symbols]

 1 nozzle 2 tips

Claims (1)

[Utility model registration claims] 1. A torch nozzle for a semi-automatic welding machine having a shape in which a tip opening is angled inward.