JPH02280973A - Supporting device of welding torch - Google Patents

Abstract

PURPOSE:To carry out fine adjustment of the position of the tip of a welding torch and to carry out accurate positioning by providing a fitting mechanism to fit the welding torch freely adjustably in the three-dimensional directions with respect to a column on a table of welding equipment. CONSTITUTION:When a setscrew 30 is loosened to rotate the welding torch 4b in the R-direction, the tip 4a thereof is adjusted at the forward and backward position in the X-direction and the setscrew 30 is tightened at the desired position and the movement of the welding torch 4b is detained. The supporting device of the welding torch 4b provided with the fitting mechanism 6a to move the tip 4a freely adjustably to the desired position with the degree of freedom in the three-dimensional directions of X, Y and Z in the horizontal right and left direction Y orthogonal to the X direction and in the vertical direction Z perpendicular to two directions of the X and Y directions by an adjustment mechanism 28 is then obtained. Accordingly, since the adjustment of position of the tip 4a of the welding torch 4b is facilitated and the adjustment can be carried out in a short time and fine adjustment can be carried out, still more accurate the adjustment of position can be carried out.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention is particularly useful in welding work using automatic welding machines, etc., in which the aim position of the tip of the welding torch relative to the welding part of the workpiece can be accurately determined in a short time. This invention relates to a support device for a welding torch that can be adjusted and thereby perform welding work with stable quality.

[Conventional technology]

Regarding conventional examples of this type of welding torch support device, Part 3
This will be explained based on the diagram. Fig. 3 shows a conventional example of a welding torch support device (al is a side view, (b) is a
FIG. 3 is an elevational view of al. In Figure 3,
The welding torch 4 is supported by accurately adjusting the aimed position of the tip 4a of the welding torch 4 with respect to a welded part of an object to be welded (not shown). That is, the configuration is such that the horizontal direction shown by arrow X, the horizontal direction shown by arrow Y, and the vertical direction shown by arrow 2 can be adjusted.

The column 10 is attached to the table 2 with screws 8 so as to be slightly movable in the direction of arrow Y, and at the upper end of this column 10,
A first support stand 50 is attached by screws 52 so as to be rotatable in the direction of arrow S and fixed at a desired rotational position. Welding torch 4 is placed on this first support stand 50, second support stand 54 is placed on top of this welding torch 4, and this is attached to first support stand 50 with screws 56, and welding torch 4 is placed on top of this welding torch 4. Attachment: The tip 4a of the welding torch 4 is opposed to a welded part of an object to be welded (not shown).

In order to accurately adjust the aiming position of the tip 4a of the welding torch 4 with respect to this welding location, +11 arrow X direction: Loosen the screw 56 and manually move the welding torch 4 to the first support stand 50. Move the second support stand 54 forward or backward in the direction of the arrow X, tighten the screw 56 at the correct position, and install it.
Manually move it on the table 2 in the direction of the arrow Y, and tighten the screw 8 at the correct position to install it. (3) Direction of the arrow 2:
Loosen the screw 52 and remove the first support 50. Second support stand 5
The welding torch 4 attached to the tip 4 is manually rotated in the direction of arrow S about the screw 52 as the center of rotation.
The adjustment is made by approximating the circular arc movement of a to the movement in the direction of arrow Z, and tightening and installing the screw 52 at the correct position.

In addition, if necessary, the above (11X direction, (2
)Y direction, (312 direction) adjustment is repeated.

[Problem to be solved by the invention]

As explained above, in the conventional example, the screw is 8°52.
The tip 4a of the welding torch 4 is adjusted by loosening and tightening the welding torch 56, manually moving the welding torch 4 in each direction, and repeating these steps, which takes time and requires manual adjustment. There are problems such as difficulty in welding, which makes it difficult to perform welding work with stable quality.

An object of the present invention is to provide a welding torch support device that solves the problems of the conventional welding torch by changing the configuration of the conventional welding torch support device.

[Means to solve the problem]

In order to solve the above-mentioned problems, the present invention provides: 1) a welding torch is mounted so that the tip of the welding torch can be adjusted with multiple degrees of freedom with respect to a welding part of a workpiece attached to a table of a welding device; In a support device for a welding torch, the welding torch is installed on a support that is attached to the table of the welding device, a horizontal forward and backward direction that is attached to this support, and a horizontal left and right direction that is perpendicular to this forward and backward direction. The welding torch is provided with an attachment mechanism for attaching the welding torch to a desired position in an up and down direction perpendicular to the two directions.

2) In the welding torch support device of item 1 above, the attachment mechanism attached to the column includes a first tubular support having a substantially horizontal centerline fixed to the upper part of the column, and a first support base fixed to the top of the column. a tubular second support base that is inserted into and attached to the inner surface of the support base via a plurality of annular elastic bodies and has a horizontal center line that is substantially a part of the first support base; a round bar-shaped welding torch, which is provided with a male threaded portion that is screwed into the female thread provided on the inner surface of the torch, and has a center line that is a part of the center line of the second support base; and one of the first support base. The plurality of annular elastic bodies provided near the end of the ring are elastically deformed so that the center line of the second support base is tilted vertically and horizontally with respect to the center line of the first support base. The welding torch includes an adjustment mechanism and a set screw provided on a protrusion of the second support from the first support to lock the welding torch from moving with respect to the second support.

3) In the welding torch support device described in the above-mentioned ring 1, the attachment mechanism attached to the support column includes a first tubular support having a substantially horizontal centerline fixed to the upper part of the support column, and a first support base fixed to the upper part of the support column, A second eccentric tubular body comprising an outer surface that is rotatably inserted into the through-hole inner surface of the support base and a through-hole inner surface that has a center line that is parallel to the center line of this outer surface.
an eccentric tubular third structure comprising a support base, an outer surface rotatably inserted into the inner surface of the second support base, and an inner surface in the form of a through hole having a center line parallel to the center line of the outer surface; a support stand, a rod-shaped welding torch inserted and attached to the inner surface of the third support stand, and a rod-shaped welding torch provided on the first support stand to control the movement of the second support stand with respect to the first support stand. a first set screw provided on a protruding portion of the second support base from the first support base to lock the movement of the third support base with respect to the second support base; a second set screw;
A third set screw is provided on a protrusion of the third support stand from the second support stand and locks movement of the welding torch with respect to the third support stand.

[Effect]

According to the welding torch support device of the present invention, 1) a support is attached to the table of the welding device in which this welding torch is installed, and the support is attached to the support in the horizontal forward and backward direction (X direction), (
(direction), a horizontal left-right direction (Y direction) perpendicular to the above (X direction), and an up and down direction (two directions) perpendicular to the two directions (X direction) (Y direction).

Since the welding torch is equipped with a mounting mechanism that allows the welding torch to be mounted in a manner that can be adjusted in the Y and Z three-dimensional directions, the position of the tip of the welding torch can be freely adjusted with respect to the welded part of the workpiece that is attached to the table.

2) The mounting mechanism of l above fixes the first support horizontally on the column, and inserts and attaches the second support to the inner surface of the first support through a plurality of annular elastic bodies, Furthermore, this second
A welding torch is screwed into the internal thread provided on the inner surface of the support base, the welding torch is rotated to move back and forth and locked at the adjusted position, and the second support base is attached to the center line of the first support base. Since the annular elastic body is elastically deformed and tilted vertically and horizontally, the center line of the welding torch can be adjusted to the position of the tip of the welding torch with respect to the welded part of the workpiece attached to the table. Can be adjusted freely.

3) Furthermore, the above-mentioned mounting mechanism 1 fixes a tubular first support base substantially horizontally on the support, and rotatably inserts an eccentric tubular second support base into the inner surface of the first support base. Furthermore, an eccentric tubular third support is rotatably inserted into the inner surface of the second support, a welding torch is inserted and attached to the inner surface of the third support, and the third support is inserted into the inner surface of the second support. A first set screw that locks the second support base, a second set screw that locks the third support base to the second support base, and a welding torch that locks the third support base. Since the welding torch is provided with a third set screw, it is possible to move the welding torch back and forth in the X direction, and in the second and third
Due to the combination of eccentric movement of the support base, the
, Y, and Z three-dimensional directions, the tip of the welding torch can be freely adjusted.

〔Example〕

A first embodiment of the welding torch support device of the present invention will be described with reference to FIG. FIG. 1 shows a first embodiment of the welding torch support device of the present invention, and FIG. FIG.

In FIG. 1, table 2 of the welding device, which is not shown,
For example, the aim position of the tip 4a of the welding torch 4 with respect to the welding part of the workpiece is set in the horizontal forward and backward direction indicated by arrow X (hereinafter referred to as the X direction) and at right angles to this X direction. A horizontal left-right direction (hereinafter referred to as the Y direction) indicated by the arrow Y, and a vertical direction indicated by the arrow 2 perpendicular to the two directions, the X direction and the Y direction (hereinafter referred to as the two directions). The mounting mechanism 6 is capable of attaching the welding torch 4 in a freely adjustable manner with dimensional freedom, and the support 10 is attached to the table 2 by screws 8. , a welding torch support device of the present invention is constructed.

In the attachment mechanism 6a of this first embodiment, a tubular first support 14 having a substantially horizontal center line 12 is fixed to the upper part of the support column 1O. Inner surface 14a of this first support stand 14
A second tubular body having a center line 18 substantially coinciding with the first support base 14 is inserted through a plurality of ring-shaped elastic bodies 16, such as O-rings, for example, and two annular elastic bodies 16 in FIG.
A support stand 20 is inserted and attached to the first support stand 14 . A female thread 20a is provided on the inner surface of the second support base 20, and a round bar-shaped welding torch 4b having a center line 22 coinciding with the center line 18 is provided with a male thread portion provided approximately in the vicinity of the center thereof. 4c is the female thread 2 of the second support base 20
It is screwed to 0a.

In addition, one or both of the upper and lower positions (in FIG. 1, the end near the tip 4a of the welding torch 4b) near one end of the first support base 14 (in FIG. 1, the end near the tip 4a of the welding torch 4b) A first adjusting screw 24 is screwed into the upper one), and the tip of the first adjusting screw 24 is in contact with the outer surface of the second support base 20. Either one or both of the left and right positions of the 90'' position relative to the screwed position of the first adjustment screw 24 (the one on the near side in FIG. 1a)
A second adjustment screw 26 is screwed into the second adjustment screw 26 , and the tip of the second adjustment screw 26 is in contact with the outer surface of the second support base 20 . When the first adjustment screw 24 is tightened, the annular elastic body 16 is elastically deformed, and as a result, the welding torch 4b is tilted, and its tip 4a moves downward in the direction of the arrow 2,
When loosened, the elastic deformation is released and the tip 4a returns to its original position.

Similarly, when the second adjustment screw 26 is tightened,
The tip 4a moves upward (actually to the right when looking in the direction of the tip 4a) on the diagram in the direction of the arrow Y, and if heated, the tip 4a
will be restored. These first and second adjustment screws 24.
By tightening and loosening 26, the center line 18 of the second support stand 20 is tilted in the vertical direction (two directions) and the left and right direction (Y direction) with respect to the center line 12 of the first support stand 14. An adjustment mechanism 28 is configured. In the above description based on FIG. 1, the first and second adjusting screws 24.2
Although the explanation was given with one 6 in each case, adjustment screws were also provided at 180'' opposite positions, and the adjustment screws on both the upper and lower sides and on the left and right sides were tightened and warmed up in coordination with each other to perform welding. An adjustment mechanism 28a may be used that moves the tip of the torch 4b vertically and horizontally, and in this case, an adjustment range approximately twice that of the adjustment mechanism 28 can be obtained.

A set screw 30 is provided on the protrusion of the second support stand 20 from the first support stand 14, and the tip of the set screw 30 is in contact with the outer surface of the welding torch 4b.

If this set screw 30 is loosened, the arrow R of the welding torch 4b
Since the male threaded portion 4c of the welding torch 4b is screwed into the female thread 20a of the second support base 20, the welding torch 4b can be rotated in the direction of the arrow R. It can be freely adjusted in the forward and backward directions of the arrow X. When the set screw 30 is tightened, the movement of the welding torch 4b with respect to the second support base 20 is locked.

As explained above, according to the first embodiment, when the set screw 30 is loosened and the welding torch 4b is rotated in the direction of the arrow R, the tip 4a is adjusted to the forward and backward position in the direction of the arrow X, and is moved to the desired position. The movement of the welding torch 4b is stopped by tightening the set screw 30 at the position, and the adjustment mechanism 28 moves it in two directions: a horizontal left-right direction (Y direction) perpendicular to the arrow X direction, and the X direction and Y direction. x in the vertical direction (Z direction)
, y, and z, it is possible to obtain a support device for a welding torch 4b equipped with a mounting mechanism 68 that can freely adjust the movement of the tip 4a to a desired position.

A second embodiment of the welding torch support device of the present invention will be described with reference to FIG. FIG. 2 shows a second embodiment of the welding torch support device of the present invention, and is a partial cross-sectional side view including the DD cross section of (al is to be described later), and (false) is (
a) is a front view as seen from arrow C, TO) is an operation explanatory diagram showing the main parts of C) in an enlarged manner, and +dl is a diagram showing the adjustment range of the tip of the welding torch.

In FIG. 2, table 2 of the welding device, which is not shown,
For example, the aim position of the tip 4a of the welding torch 4 with respect to the welding part of the workpiece is set in the horizontal forward and backward direction indicated by arrow X (hereinafter referred to as the X direction) and at right angles to this X direction. A horizontal left-right direction (hereinafter referred to as the Y direction) indicated by the arrow Y, and a vertical direction indicated by the arrow Z perpendicular to the two directions, the X direction and the Y direction (hereinafter referred to as the two directions). The mounting mechanism 6 is used to adjustably attach the welding torch 4 with dimensional freedom, and the support lO is attached to the table 2 with screws 8. A welding torch support device of the invention is constructed.

In the attachment mechanism 6b of this second embodiment, a tubular first support 34 having a substantially horizontal center line 32 is fixed to the upper part of the support column 10. An eccentric tubular second support 36 is rotatably inserted into the through-hole-shaped inner surface 34a of the first support 34, and the second support 36 is connected to the first support 34.
an outer surface 36a rotatably inserted into the inner surface 34a of 4;
An outer surface 36a that is a part of the center line of the first support base 34
It has an eccentric tube shape with a through hole-shaped inner surface 36b having a center line 38 at a position parallel to the center line 32 of the center line 32. An eccentric tubular third support 40 is rotatably inserted into the inner surface 36b of the second support 36; an inner surface 40b in the form of a through hole having an outer surface 40a to be inserted, and a centerline 42 at a position parallel to the centerline 38 of the inner surface 36b of the second support base 36 and a centerline 42 of the outer surface 40a, which is a part of the centerline 38; It has an eccentric tubular shape consisting of. A rod-shaped welding torch 4 is inserted and attached to the inner surface 40b of this third support base, as in the conventional example shown in FIG. 3.

Further, the first support stand 34 is provided with a first set screw 44, and the tip of the first set screw 44 is in contact with the outer surface 36m of the second support stand 36. First set screw 4
4, the second support base 3 whose outer surface 36a is rotatably inserted into the inner surface 34a of the first support base 34
6 can freely rotate in the direction of arrow 36r shown in FIG. be done.

A second set screw 46 is provided on the protrusion of the second support base 36 from the first support base 34 .
The tip thereof is in contact with the outer surface 40a of the third support base 40. When the second set screw 46 is loosened, the third support base 40, whose outer surface 40a is rotatably inserted into the inner surface 36b of the second support base 36, is moved in the direction of the arrow 40r shown in FIG. The second set screw 46
If you tighten it, the third support stand 4 will move against the second support stand 36.
0 movement is locked.

A third set screw 48 is provided on a protruding portion of the third support base 40 from the second support base 36 .
The tip of the welding torch 4 is in contact with the outer surface of the welding torch 4. By loosening the third set screw 48, the welding torch 4 can move freely in the direction of arrow X, and by tightening the third set screw 48,
The movement of the welding pad 4 is stopped with respect to the third support base 40.

As explained above, according to the second embodiment, the welding torch 4 can be moved in the direction of the arrow X by loosening the third set screw 48, thereby adjusting the tip 4a to the forward and backward position in the direction of the arrow X. Then, the third set screw 48 is tightened at a desired position to lock the welding torch 4 from moving. Second set screw 4
6 and rotate the third support base 4° in the direction of arrow 40r shown in FIG.
It is freely moved onto a circle 40c indicated by a dashed dotted line centered on the center (line) 38 shown in +d) to +d). With the tip 4a in the original position shown in the figure, when the first set screw 44 is loosened and the second support base 36 is rotated in the direction of the arrow 36r shown in FIG. (b) A circle 36c with a single point ill line centered on the center (line) 32 shown in or dl
be moved upwards freely. When the rotation of the second support stand 36 and the rotation of the third support stand 40 are combined, in the hunting range within the circle 36c shown in FIG. 2(d),
The position of the tip 4a can be freely adjusted in the X direction and two directions. Tighten the second setscrew 44, 46 to lock the movement, and in combination with the adjustment in the X direction described above, adjust the x, y direction.

2 degrees of freedom in three-dimensional directions, position the tip 4 at the desired position.
A support device for a welding torch 4 is obtained, which is provided with a mounting mechanism 6b that can freely adjust the movement of m. Note that the adjustment mechanism in the X direction may be applied in the first embodiment to the second embodiment, or vice versa.

Said 1st. As explained in the second embodiment, the welding torch support device of the present invention includes a support 10 mounted on the table 2 of the welding apparatus on which the welding torch 4° (4b) is installed.
and the horizontal forward and backward direction (X direction) attached to this support lO, the horizontal left and right direction (X direction) perpendicular to this (X direction), and the (X direction) with respect to the (X direction). The welding torch can be freely adjusted to a desired position with three-dimensional degrees of freedom in the vertical vertical direction (X direction), X, Y, and Z.4. (4
b) Attachment mechanism for attaching 6, (6a), (6b
).

According to the welding torch support device of the present invention, the position of the tip of the welding torch can be easily adjusted by rtxm, which solves the problems of the conventional example, such as the time required for adjustment and the difficulty in making fine adjustments. A support device can be provided.

〔Effect of the invention〕

The present invention provides a welding torch support device that allows the three-dimensional position of the tip of the welding torch to be easily and freely adjusted by loosening the adjustment screw and the set screw, and locks the movement by tightening the adjustment screw and the set screw at this position. Therefore, the following effects can be obtained.

(11 The position of the tip of the welding torch can be easily adjusted and can be adjusted in a short time, and fine adjustment can be made, so even more accurate position adjustment is possible.

This allows welding work to be performed with stable quality.

(3) Particularly in a welding device that uses a plurality of welding torches, the effect of reducing the time for adjusting the position of the tip of the welding torch and performing welding work with stable quality becomes greater.

[Brief explanation of drawings]

Fig. 1 shows a first embodiment of the welding torch support position vi of the present invention, in which (a) is a side view of a partial cross section including the BB cross section of the mountain (to be described later); ) as seen from arrow A, and FIG. 2 is a second view of the welding torch support device of the present invention.
(J1) is the D-
Side view of partial cross section including D cross section, mountain) indicates ta+ with arrow C
(C) is an operation explanatory diagram showing the main parts of the welding torch enlarged. (d) is a diagram showing the adjustment range of the tip of the welding torch. Figure 3 is a diagram of the welding torch support device. This shows a conventional example, (al is a side view, and (b) is an elevational view of (al) seen from arrow E. 2: Table, 4, 4b: Welding torch, 4a + tip, 4
c: Male thread, 6, 6a, 6b, 6c: Mounting mechanism, l
O: Pillar, 12.18.22.32.38.42: Center line, 14.34, 50: First support stand, 16; Annular elastic body, 20.36.54: Second support stand, 20a
: Female thread, 24: First adjustment screw, 26: Second adjustment screw, 2B: m adjustment mechanism, 30: Set screw, 40: Third support base, 44: First set screw, 46 : second set screw,
48: Third set screw. Figure 1 (b)

Claims (1)

[Scope of Claims] 1) Support for a welding torch in which the welding torch is attached such that the tip of the welding torch can be adjusted with multiple degrees of freedom with respect to the welded part of the welded object attached to the table of the welding device. In the apparatus, the welding torch is installed on a support that is attached to the table of the welding equipment, a horizontal forward and backward direction that is attached to this support, a horizontal left and right direction perpendicular to this forward and backward direction, and the above two directions. 1. A welding torch support device comprising: a mounting mechanism for mounting the welding torch in a desired position vertically and vertically so as to be adjustable. 2) The welding torch support device according to claim 1, wherein the attachment mechanism attached to the column includes a first tubular support having a substantially horizontal center line fixed to the upper part of the column; a tubular second support that is inserted and attached to the inner surface of the support via a plurality of annular elastic bodies and has a horizontal centerline that substantially coincides with the first support; and an inner surface of the second support. a round bar-shaped welding torch, which is provided with a male threaded portion that is screwed into the female thread, and has a center line that coincides with the center line of the second support base; and one end of the first support base. an adjustment mechanism provided nearby that causes the plurality of annular elastic bodies to be elastically deformed so that the center line of the second support base is tilted vertically and horizontally with respect to the center line of the first support base; , a set screw provided on a protrusion of the second support stand from the first support stand and locking the movement of the welding torch with respect to the second support stand. Torch support device. 3) The welding torch support device according to claim 1, wherein the attachment mechanism attached to the column includes a first tubular support having a substantially horizontal center line fixed to the upper part of the column; A second eccentric tubular body comprising an outer surface that is rotatably inserted into the through-hole inner surface of the support base and a through-hole inner surface that has a center line that is parallel to the center line of this outer surface.
an eccentric tubular third structure comprising a support base, an outer surface rotatably inserted into the inner surface of the second support base, and an inner surface in the form of a through hole having a center line parallel to the center line of the outer surface; a support stand, a rod-shaped welding torch inserted and attached to the inner surface of the third support stand, and a rod-shaped welding torch provided on the first support stand to control the movement of the second support stand with respect to the first support stand. a first set screw provided on a protruding portion of the second support base from the first support base to lock the movement of the third support base with respect to the second support base; a second set screw;
The third set screw is provided on a protruding portion of the third support stand from the second support stand and locks movement of the welding torch with respect to the third support stand. Welding torch support device.