JPS6028586B2 - Gas supply device to the rotating section - Google Patents

Description

[Detailed description of the invention] The present invention relates to a gas supply device to a swirling section.

FIG. 1 is a configuration diagram of an automatic welding device that welds materials to be welded while the head rotates. In the figure, 1 is a fixed column which is connected to the floor structure with a rib and is fixed, 2 is a rotating section, and a head 4 is attached to the tip of the column via an arm 3, and a torch 5 is attached to the head 4. Once installed, the pivoting section 2 as a whole pivots around the fixed column 1,
Therefore, at the same time, the head 4 and the torch 5 are rotated, 6 is a welding table attached to the end of the fixed support 1 and used to place the workpiece, and 7 is the workpiece, such as a circular flat plate. 8 is a metal tank that requires welding of the weld line 7 on the circumference, such as when making a metal tank by overlapping the lower part and the upper part and welding the seam. melting material 7
This is a presser table for pressing and fixing the welding table 6 onto the welding table 6. With the above configuration, during welding, the torch 5 is used to rotate the workpiece 7 while rotating the rotating part 2 about the fixed support 1.
Weld the welding lines. When performing such welding,
It is necessary to supply gas such as inert gas or carbon dioxide gas to the head 4 and torch 5 portions. However, if the gas piping is installed with the axis of the fixed support 1 off, the piping will become coiled due to the rotation, and even if a commercially available rotary gas joint is installed at the center of the fixed support 1. It is not possible to extend piping from the center of the fixed support 1 to the head 4. An object of the present invention is to solve these problems and provide a gas supply device that can easily supply gas from a fixed part to a rotating part.

FIG. 2 is a perspective view of the external appearance when the gas supply device according to the present invention is attached to the fixed column 1 at the lower part of the rotating part 2 in FIG. 1, and FIG. 3 is a cross-sectional view of the gas supply device portion in FIG. 2. FIG. 2 is a cross-sectional view of the fixed support taken along the center cross section in the koji direction.

In the figure, 9 is a bearing, 10 is an upward opening, and a liquid 1
A gutter-shaped container 11 stores liquid 14 in the interior thereof and is fixed around the fixed part support 1, and 11 has a downward spout into the liquid 14 in the container 10, and is connected to the liquid level of the liquid 14 and the inside thereof. It has a shape that creates a space between the wall and the inner bottom wall, is attached around the fixed part support 1 via a bearing 9, and is rotatable together with the rotating part 2. A rotating cover 12 is a rotating cover 11 from below. A gas supply pipe 13 is provided to supply gas 1 to the internal space, a gas exhaust pipe 13 is provided to supply gas 15 from the internal space of the rotating cover 11 to the head 4 on the rotating part 2, and others. The symbols are the same as in FIG. With this configuration, rotating cover 1
Gas 15 is supplied to the gas feed stand pipe 12 in the space inside the gas supply pipe 12, and when the rotating part 2 rotates during welding, the rotating cover 11 is also rotated in relation to the rotating part 2, and the gas 15 is supplied to the torch part through the gas discharge pipe 13. It was designed to be supplied. Therefore, even when the rotating section 2 rotates, the piping does not get twisted, and gas can be smoothly supplied from the fixed section to the rotating section.
Since gas is normally used at a differential pressure of about 0.05 atm, water may be used as the liquid 14, but when this pressure is high, mercury or the like may be used, for example. Further, the rotating cover portion may be associated with the rotating portion, or may be moved by being pulled by the piping 13.

[Brief explanation of the drawing]

Fig. 1 is a configuration diagram of an automatic welding device that welds materials to be welded while the head rotates, and Fig. 2 shows a gas supply device according to the present invention attached to the fixed column 1 at the bottom of the rotating section 2 in Fig. 1. FIG. 3 is a perspective view of the external appearance when installed, and is a cross-sectional view taken at the center cross-section in the wisteria direction of the fixed column 1, showing a cross-section of the gas supply device portion in FIG. 2. Younger brother's figure 3

Claims (1)

[Claims] 1. A gutter-like container 10 that opens upward, stores the liquid 14 therein, and is fixed around the fixed part support 1; the liquid in the container 10 is is opened downward, and the liquid level of the liquid 14 and
A rotating cover 11 that is shaped to create a space between its inner wall and inner bottom wall and is rotatable together with a rotating section 2 that is attached around a fixed section support column 1 via a bearing 9;
A gas supply pipe 12 that supplies gas 14 from below to the space inside the rotating cover 11; a gas exhaust pipe 13 that supplies the gas 14 from the space inside the rotating cover 11 to the rotating section 2; A gas supply device characterized in that it supplies gas to.