JPS60145289A - Weaving device for automatic welding machine - Google Patents

Abstract

PURPOSE:To adjust easily a weaving width and weaving direction in the position apart from a torch by coupling the torch and an oscillating and driving part thereof by a reciprocating rod and providing an adjusting part for the weaving direction to the reciprocating rod. CONSTITUTION:The reciprocating motion of an oscillating arm 24 is transmitted via an adjusting part 17 for a weaving direction to a plate 19 for attaching a torch by a reciprocating rod 16 to oscillate a torch 18 around the axis thereof. A screw shaft for adjusting a movable fulcrum is rotated by running a driving motor 27 for adjustment to adjust the position of a movable fulcrum 28C in the stage of adjusting the weaving width. The width of the reciprocating motion of the arm 24 is thus adjusted by which the rotating angle width of the plate 19 is adjusted. The adjustment of the weaving direction is accomplished by turning the block 19 of the part 17 and adjusting the length of the flexible rod 16 thereby adjusting the rotating angle of the plate 19.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a weaving device for an automatic welding machine that performs weaving processing using a torch.

(Structure of conventional example and its problems) A weaving device conventionally used for weaving in a mechanically narrow place is shown in FIGS. 1 to 3. As shown in the figure, this weaving device changes the direction of the rotational motion of a swing drive motor 1 using a gear 2, transmits it to a plate cam 4 via a flexible shaft 3, and is attached to the plate cam 4. By sliding the cam protrusion 5 within a groove 6a provided at the upper end of the swinging body 6, the swinging main body 6 is caused to swing in the direction of arrow A around the movable support shaft 7. A torch mounting plate 8 is attached to the lower end of the swinging body 6, and a weaving torch 9 is attached to this. In this device, in order to adjust the weaving width, the rotational movement of the adjustment motor 10 is
1, the screw shaft 13a is rotated by the flexible shaft 12, and the members 1 and 3b fitted thereto are moved, thereby moving the movable fulcrum 7 fitted into the groove 6b of the swinging body 6. Adjust the position by moving it up or down.

To adjust the weaving direction, loosen the torch mounting bolt 8a and remove the oscillator 6, as shown in Figure 3.
This is done by changing the mounting angle α of the torch mounting plate 8.

However, in such a conventional weaving device, the cam 4 for reciprocating the torch 9, the swinging body 6,
Since the screw shaft 13a1 movable fulcrum adjustment member 13b, etc. are attached behind the torch 9, the torch 9 becomes large.
There is a problem in that it is difficult to use for weaving in narrow spaces.

Additionally, this weaving device has the disadvantage that in order to adjust the weaving direction, it is necessary to loosen the mounting pole 8a of the torch mounting plate 8 and change its mounting angle, making the adjustment work troublesome. .

(Objective of the Invention) The present invention solves the above-mentioned conventional drawbacks and provides a weaving device that can perform weaving even in narrow areas, and that can easily adjust the weaving width and weaving direction. The purpose is to provide

(Structure of the Invention) In the weaving device of the present invention, the torch for weaving welding and its swinging drive part are provided separately, and the two are connected by a flexible reciprocating rod, thereby reducing the size of the torch part and , the weaving width and weaving angle can be easily adjusted using a swinging drive section that is separate from the torch.

(Description of Embodiment) Hereinafter, a weaving device according to an embodiment of the present invention will be described in detail with reference to FIGS. 4 to 7.

In the figure, 14 is a torch section, and 15 is this torch section 14.
16 is a flexible reciprocating rod that connects the torch section 14 and the reciprocating motion output point of the oscillating drive section 15; 17 is a reciprocating rod; This is a direction adjustment section that adjusts the weaving direction by changing the substantial length of the weaving direction.

The torch section 14 includes a torch 18 for performing weaving welding.
is attached to the support arm 20 via the torch attachment plate 19 so as to be swingable about the zero point.

The swing drive unit 15 includes a swing drive motor 21, a cam 22 with a diagonal groove 22a attached to its shaft, and a swing arm 24 with a ball 23 fitted in the diagonal groove 22a on a base plate 25. Install and configure.

The swing width adjustment section 26 includes an adjustment drive motor 27, a screw shaft 28a attached to the shaft thereof, a movable fulcrum adjustment member 28b fitted to the motor 27, and a movable fulcrum adjustment member 28b fitted into the groove 24a of the swing arm 24. It is constituted by a movable fulcrum 28e. Furthermore, the direction adjustment part 17 is constructed by screwing a right (left) threaded part 16a provided on one side of the reciprocating rod 16 and a left (right) threaded part 16b provided on the other side into a screw hole 29a provided in the block 29. . One end of the reciprocating rod 16 is connected to a pin 24b provided on the swing arm 24 as a reciprocating motion output point of the swing drive unit 15, and the other end is connected to a pin 19a provided on the torch mounting plate 19.

Next, the operation of the above configuration will be explained. First, the rotation of the swing drive motor 21 is transmitted to the cam 22, and the swing arm 24 is moved as a movable fulcrum by the ball 23 fitted in the diagonal groove 22a of the cam 22. 28c as a fulcrum. This causes the other end of the swing arm 24 to reciprocate.

This reciprocating motion is transmitted to the torch mounting plate 19 by the reciprocating rod 16 via the weaving direction adjustment part 17, and by swinging the torch 18 attached thereto around the shaft 19b, the weaving width for weaving the torch 18 is changed. When adjusting, by rotating the adjusting drive motor 27 and rotating the movable fulcrum adjusting screw shaft 28a,
18. Move the movable fulcrum adjustment member 28b, adjust the position of the movable fulcrum 28C, and adjust the width of the reciprocating motion of the pin 24bK of the swinging arm 24 to adjust the rotation angle width of the arm mounting plate 190. This is done by adjusting.

Further, the weaving direction can be adjusted by turning the block 29 of the direction adjustment section 17 as shown in FIG. 7a.

As shown in b and c, the combination of the right (left) threaded portion 16a and the left (right) threaded portion 16b creates a flexible reciprocating rod 16.
By adjusting the substantial length of the swinging arm 24
This is done by adjusting the rotation angle α of the torch mounting plate 19 at the neutral position and adjusting the direction of the torch.

In this way, in this device, the torch section 14 and the swing drive section 15
Since the two parts are separated from each other and the two parts are connected by a reciprocating rod, preferably a flexible reciprocating rod 6, the torch part 14 can be made small, and the torch part 14 can be used even in a narrow welding field. Since you can take it with you, weaving welding can be done in narrow spaces. Furthermore, the weaving width and weaving direction can be easily adjusted at a distance from the welding position.

As the reciprocating rod, it is preferable to use a commercially available Butshusol wire or the like.

(Effects of the Invention) As described above, according to the present invention, the weaving welding torch and the drive unit for swinging the welding torch are provided separately, and the two are connected by a reciprocating rod. The torch part can be made smaller, and the torch part can be carried into narrow areas, which was previously impossible, and weaving welding can be performed.

Furthermore, the weaving width and weaving direction can be easily adjusted at a portion away from the torch portion, making it possible to realize a device with good operability.

[Brief explanation of the drawing]

Figure 1 is a front sectional view of a conventional weaving device, Figure 2 is a front sectional view of a conventional weaving device;
The figure is a side view of the torch portion of the device, FIG. 3 is a side view of the main part of the torch portion showing a weaving direction adjustment method of the device, and FIG. 4 is a side view of the weaving device in an embodiment of the present invention. Fig. 5 is a plan sectional view of the swing drive section of the same device, Fig. 6 is a front sectional view of the torch section of the same device, and Fig. 7 11
+ b + e is a cross-sectional front view of the angle adjustment section showing a weaving direction adjustment method of the same device. 14... Torch part, 15... Swing drive part, 16...
Reciprocating rod, 17... weaving direction adjustment section, 18 pa.
·torch. Figure 1 Figure 2 Figure 9 \-ノ'. Figure 3 Figure 4 Figure 6 Figure 5 Figure 6 Figure 7 a b c

Claims (1)

[Claims] In a weaving device for an automatic welding machine, in which a torch used for weaving welding is provided so as to be swingable around a single axis, a swing drive section including a swing width adjustment section is provided at a position away from the torch, and the A reciprocating motion output point of the dynamic drive unit is coupled to the torch via a reciprocating rod to swing the torch, and the reciprocating rod changes its substantial length to change the direction of weaving by the torch. Weaving device for automatic welding machine equipped with a weaving direction adjustment section.