JPS5940148Y2 - Adjustment jig for TIG welding - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a tool for adjusting the protrusion length of an electrode for TIG welding.

To set the protrusion length when protruding the tungsten electrode, which is a non-consumable electrode, from the TIG welding torch nozzle, place a thickness gauge corresponding to the desired length on the workbench, and then press the torch until the bottom of the torch nozzle touches it. lower the
Fix the torch, then remove the thickness gauge, insert and feed a tungsten electrode (referred to as W electrode) into the collet, and fix the W electrode with the tip of the W electrode in contact with the workbench. .

After setting the protrusion length, the torch is raised again to a predetermined height, placed at a predetermined height position above the material to be welded, and welding is performed.

According to this method, the torch, which has been adjusted to a predetermined height on the welding jig, is lowered once to set the protrusion length of the W electrode, and after setting the protrusion length, the torch is adjusted to the predetermined height again. The work is complicated because it has to be fixed,
It's inefficient.

Moreover, there is a problem in that work conditions tend to fluctuate, and the setting of the protrusion length and height adjustment cannot be performed accurately.

The object of the present invention is to solve the above-mentioned conventional problems and provide an adjustment jig that can easily and accurately adjust the protruding length of a TIG welding electrode.

The present invention has achieved this objective by creating a U-jig having a U-shaped cross section and a groove depth that gradually changes.

The details of the present invention will be explained with reference to embodiments shown in the drawings.

In FIGS. 1 and 2, a torch 2 having a torch nozzle 1 is arranged directly above the abutting portion of the workpiece 5, with the end face of the torch nozzle 1 adjusted to a position at a distance H1 generally at a height H from the workpiece 5. Ru.

The height H is set according to welding conditions.

Therefore, a jig 4 having a rectangular cross section and a height H is inserted between the workpiece 5 and the torch nozzle 1 to adjust the height of the torch 2.

A W electrode 3 is arranged on the center line of the torch nozzle 1.

The W electrode 3 is held by the collet of the torch 2 so that its movement can be adjusted.

The W electrode 3 is attached so as to protrude from the tip of the torch nozzle 1 toward the workpiece 5 by a desired length h determined by welding conditions.

An adjustment groove 6 is provided in the central part of the jig 4 facing the W electrode.
is formed, and as a result, the cross-sectional shape of the jig 4 becomes U-shaped.

The depth of the adjustment groove 6 is formed so as to gradually change from one end of the jig 4 to the other end.

That is, the bottom surface 7 of the adjustment groove 6 is formed as an inclined surface.

It is also possible to use a jig 4 formed so that the depth of the deepest or shallowest part of the adjustment groove 6 corresponds to the protruding length h of the W electrode from the end surface of the torch nozzle 1; It is also possible to use a device in which the depth of the adjustment groove 6 is indicated by a scale or the like at a corresponding position as appropriate.

In the former case, the W electrode contacts the deepest or shallowest part of the adjustment groove 6 during adjustment, and in the latter, the W electrode contacts the bottom of the adjustment groove 6 at the part where the desired depth h is displayed. Adjust as follows.

In a state where the W electrode is in contact with the predetermined bottom of the adjustment groove 6,
Lower the torch 2, adjust the position so that the tip of the torch nozzle 1 is in contact with the top surface of the jig 4, and fix the W electrode 3 to the torch 2 with the collet. Then, the protruding length of the W electrode and the height of the torch nozzle can be adjusted. ends.

Thereafter, the jig 4 is slid and removed from between the workpiece 5 and the torch nozzle 1 by utilizing the fact that the bottom surface of the adjustment groove 6 is an inclined surface.

The torch is now ready for welding.

With the simple shape of the jig of this invention, the torch does not need to be moved after adjustment, and since it is placed on the butt surface of the welded material, welding work can be performed.Moreover, it is easy to operate and is non-consumable. The protrusion length of the W electrode, which is the electrode, can be adjusted accurately.

Therefore, compared to the conventional method, the time required to set the protruding length of the electrode and adjust the height of the torch is greatly reduced, and moreover, accurate adjustment is now possible.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of a jig according to the present invention, and FIG. 2 is an explanatory diagram in an adjusted state. 1...Torch nozzle, 2...Torch,
3...Non-consumable electrode, 4...Jig, 5
... Material to be welded, 6 ... Adjustment groove, 7 ...
...Bottom surface.

Claims (1)

[Scope of utility model registration request] In a TIG welding adjustment jig that adjusts the distance between a TIG welding torch nozzle having a non-consumable electrode and the workpiece, a rectangular parallelepiped jig having a height corresponding to the distance between the welding torch nozzle and the workpiece faces the electrode. By forming an adjustment groove having a bottom surface formed as an inclined surface whose depth changes sequentially, the cross section is formed into a substantially U-shape, and the depth of the adjustment groove is smaller than the end surface of the torch nozzle of the non-consumable electrode. TIG characterized by being set according to the protrusion length
Adjustment jig for welding.