JPS6243669Y2 - - Google Patents

Description

[Detailed description of the invention] The present invention relates to a holding device for welding cables connected to an automatically traveling type welding device, and is particularly applicable to long welding sections in narrow areas. This relates to a cable holding device for a welding device, and is configured to allow the cable to be smoothly fed out and easily wound up, thereby streamlining welding work.

For example, a workpiece as shown in FIG. 1 is one in which a vertical plate 2 is fillet welded to the upper surface of a horizontal plate 1, and an automatic traveling welding device 3 is used for the fillet welding.

On the other hand, such a welding device 3 generally runs while pulling a welding cable assembly 4, and a welding power supply cable, a control power supply cord, a wire conduit tube, or a shielding gas is installed in the welding assembly cable 4. Supply hoses, cooling water circulation hoses, etc. are stored here. The cable 4 extends from a connecting portion 5, and the storage power cord 7 and hoses 6 are connected to the connecting portion 5 and introduced into the cable 4. Further, the wire to be inserted into the conduit tube is introduced from the wire feeding device 8 via the connecting portion 5;
a and a wire reel 8b.

By the way, the welding device 3 shown in the figure runs by pulling the cable 4 as described above, but the running speed must not fluctuate due to the pulling resistance of the cable. Furthermore, when the welding device 3 retreats to return to its original position, it is necessary to pull or wind up the extended cable 4 so that it does not obstruct the retreat. Therefore, in the conventional example shown in FIG.
is held in a meandering manner in advance as shown at 4a, and is sequentially fed out during welding. When the welding of this welding line is completed, the welding device 3 starts to move backward, but the cable 4 that has been fed out is
It will be put on hold as in a. If necessary, the welding device 3 may be brought into a free running state and the cable 4 is pulled to return the welding device 3 to the welding starting position at the same time as the welding is completed. Such cable processing is performed exclusively by hand, which is time-consuming, and requires a large working floor area in order to perform this processing smoothly. Therefore, as illustrated in FIG. 2, only the wire feeding conduit tube of the welding cable assembly 4 is fed from a separately provided wire feeding device 8, and the other cables are wound on a winding device 9. A method is used in which the materials are held together and then fed in such a way that they are aligned. Such a winding device 9 has a configuration as shown in an enlarged view in FIG. 3. That is, the cable 4 is wound around the flanged take-up reel 10, and the reel 10
It is rotatably supported on a trolley 12 so that the axis of the cable 4 is substantially horizontal, and is rewound by pulling out the cable 4, and the reverse rewound operation is performed manually. In addition, power supply, gas, cooling water, etc., are introduced to the power cord and hoses housed in the cable 4 through a rotary joint device 11 provided on one side of the reel shaft pivot portion of the trolley 12. It's getting old.

By using such a cable winding device, it is possible to avoid clumsiness such as leaving the cable 4 spread out on the floor, and it is possible to eliminate danger at the welding work site and to streamline the welding work. In addition, when rewinding (rewinding), it is possible to use a spring or the like to automatically rewind only when the tension is below a certain level, but the unwinding can be performed as the welding device 3 travels. It must be unwound with uniform pull-out resistance. By the way, since the cable 4 has a considerable weight and the axis of the reel 10 is arranged horizontally, the rewinding torque differs depending on the diameter of the reel, and the reel 10 is
The reel 10 spins idly and the cable on the pull-out side hangs down, or when the cable is pulled out in the opposite direction, it hangs down as shown by the chain line 4b, causing the reel 10 to spin idly, making it impossible to maintain uniform pull-out resistance. For this reason, attempts have been made to install a special brake device on the reel 10 or to control these brake devices in conjunction with the running of the welding device 3, but these incidental equipment are large-scale and require maintenance and management. The adjustment required a lot of effort and was not practical. In contrast, the axis of the take-up reel 10 as described above is installed vertically to prevent inertial rotation of the reel 10 due to cable withdrawal as much as possible, and the wire guided into the cable 4 is introduced from the take-up device section. A method was proposed, but since the proposed method was to be installed in a fixed location, it lacked versatility, and there were also problems with the connection of power, gas, cooling water, etc. led into the cable. It was not immediately available.

The present invention has been developed with these points in mind, and it is an object of the present invention to provide a power cable holding device configured to allow cables to be pulled out smoothly with uniform tension. However, this invention is a system in which a guide member for extracting hoses, power cords, etc. for guiding the welding collective cable is rotatably supported on the upper part of a movable trolley, and is fixed around the guide member. A welding collective cable winding and mounting table is suspended via a plurality of hanging rods, and a wire supply device is provided on the rotating part including the hanging rods, and a hose, power cord, etc. leading to the guide member is connected to the lower side of the cart. It is configured so that it can be introduced from The present invention will be explained in detail below based on the drawings. However, the drawings show an example of a specific implementation of the present invention, and the present invention is not limited to these illustrated examples. Even if the shape of the parts is changed or a part of the design is changed, the same implementation is possible.

Figure 4 shows the collective cable holding device 1 for welding according to the present invention.
3, the holding device 13 is composed of a cart 14 and a table 17 rotatably provided on the outer periphery of the center in the height direction, and the table 17 is pivoted at the center of the top surface of the cart 14. It is suspended from the guide device 15. For the hanging installation, the guide device 15
A plurality of hanging rods 16 are fixed around the periphery, the other end is bent and hung down so as not to touch the cart 14, and a table 17 is fixed to the lower end. table 17
For example, it is recommended that a flange wall 17a is integrally formed on the inner circumferential side, and the tip of the other end of the hanging rod 16 is fixed to the outer circumferential side of the flange wall 17a. Further, the table 17 is used to wind and place the cable 4 as shown in the figure.When winding the cable 4, the peripheral edge of the table 17 is manually turned to wind it, but an electric motor exclusively for winding is arranged. If necessary, they can be stacked and wrapped. The winding start end 4d of the wrapped cable 4c is held on a part of the table 17 or the flange wall 17a, and the hose, power cord, etc. guided into the cable are guided from the guide device 15. The figure shows a gas hose 18, a power cord 19, and a cooling water circulation hose 19a as an example. On the other hand, the welding wire to be passed through the cable 4 is supplied from a wire supply device 8 provided at a rotating portion including the suspension rod 16. The feeding device 8 is composed of a wire feeding device 8a and a wire reel 8b, which are provided on a base plate 8c that straddles a part of the hanging rod 16. Therefore, the guide device 15,
The hanging rod 16 and table 17 rotate together, and the wire supply device 8 rotates together with them. A conduit tube 8d connected to the wire feeding device 8a is introduced from the beginning end 4d of the cable winding together with the gas hose 18, power cord and circulation hoses 19, 19a.

On the other hand, the truck 14 is configured to be movable by providing a pulley 14a, and is also configured to be able to stop at a specific position by providing a suitable braking device, and the interior of the truck 14 is a cavity 14b (FIG. 6). Further, a hollow portion is also formed in the guide device 15, and a cylindrical shaft 15a is formed on the lower side of the hollow portion.
is rotatably provided on a pivot formed on the top side of the truck 14. And the power supply and hoses 18,1
9 and 19a are pulled in through a hole 14c provided in the bottom plate of the trolley 14, and then pulled out through holes provided in the circumferential surface of the guide device 15 via the cylindrical shaft 15a, and guided to the cable end 4d. Therefore, when the cable 4c on the table 17 is pulled out, the table 17 is rotated and rewound by its tension. And the power supply and hoses 18, 1 that are twisted by the rotation
9 and 19a are twisted in the hollow portion 14b of the carriage 14 as shown in 20 (FIG. 7). However, this twist 2
0 is no problem because it will be resolved when the cable is wound up and rotated again. In addition, when the winding length of the cable 4 is long and the twist 20 becomes a problem,
As shown in FIG. 8, an L-shaped guide tube 15b is attached to the lower end of the tube shaft 15a, and the hoses are connected to the trolley 1.
A considerable length 21 from the guide port 14d provided at the lower part of the peripheral wall of No. 4 may be retained in the cavity to increase its turning allowance. In these embodiments, the hoses introduced into the truck 14 were simply guided through the guide device 15, but in order to eliminate the twists 20 and retention 21 in the hollow section 14b of the truck 14, the hoses were introduced into the truck 14. It is recommended that the guide device 15 be a rotatable joint device. That is, the ninth
10 and 10 are a plan view and a partially cutaway side view of an embodiment in which the guide device 15 is configured by a rotatable joint device, in which a hanging rod 16, a table 17
The truck 14 is constructed in substantially the same manner as described above, and the hanging rod 16 is fixed around a ring seat 22 that is non-rotatably attached to a connecting shaft 23 provided protruding from the top of the truck 14. The connecting shaft 23 constitutes the central rotating shaft of the rotary joint member, and is rotatably supported by the cart 14 and rotated together with the table 17 via the ring seat 22 fixed to the protrusion. Further, the connecting shaft 23 is a stepped shaft with a large diameter portion 23a on the lower side, and a hollow portion 23b communicating with each other is formed. The upper narrow diameter portion is housed in an annular body 24 attached to the back side of the top surface of the truck 14, and grooves 28a, 27a, and 26a that are open to the inside are formed in parallel in the annular body 24, respectively. One connection shaft 23
Passage holes 28b, 27b and 26b (28b, 27b
(not shown), and these passage holes are provided with grooves 28a, 27a and 26a provided in the ring body 24.
Through-holes communicating with each other are formed. Passage hole 2 in the figure
6b indicates a groove that communicates with the groove 26a, and other grooves 2
7a and 28a communicate with passage holes 28b and 27b provided in other parts of the cylinder shaft, respectively, through through holes that communicate with passage holes 28b and 27b, respectively. Introductory hoses 26c, 27c and 28c are provided on the opening sides of these passage holes, respectively.
are connected, and these hoses are connected to the cable end 4d.
guided by. Further, hoses 28, 27, and 26 are connected to the open grooves of the ring body 24, respectively. For example, the hose 28 is used for supplying shield gas, the hose 27 is used for introducing cooling water, and the hose 26 is used for discharging the cooling water. . On the other hand, for connection of the power supply introduced into the cable 4, a slip ring 25 is provided in a band shape around the large diameter portion 23a of the connecting shaft 23, and a sliding conductive member is provided opposite to the slip ring. It consists of a stand 25a, the cord ends extending into the cavity 23b of the connecting shaft 23 are connected to the slip rings 25, and the top of the connecting shaft 23 is connected to the cable end 4d. In the illustrated example, the upper four rows of the slip rings 25 are used as control power cables,
Although the bottom row is shown as a welding power cable, these can be freely arranged. Note that FIG. 10 is an enlarged view to show the configuration of the connecting shaft 23.

According to the collective cable holding device for welding of the present invention,
When pulling out a cable, the appropriate frictional force between the cable and the table surface due to the cable's own weight prevents the table from turning too much, so the table does not spin idly and can be pulled out smoothly under constant tension. can. Therefore, the welding device can run stably and perform good welding. Further, when winding, it is sufficient to manually turn the table in the winding direction, and there is no need to use a special guide device. Furthermore, this device is transportable, has a simple structure, and is easy to handle, so it has high versatility and can streamline welding work.

[Brief explanation of the drawing]

Fig. 1 is an explanatory diagram showing an example of welding work suitable for applying the present invention, Fig. 2 is an explanatory diagram showing conventional processing means, Fig. 3 is a partially enlarged view of Fig. 2, and Fig. 4 5 is a plan view of FIG. 4, FIG. 6 is a partially cutaway side view of FIG. 5, and FIGS. 7 and 8 are the operation and other configurations of FIG. 6. FIGS. 9 and 10 are plan views and partially cutaway sectional views showing other embodiments of the present invention. 3... Welding equipment, 4... Collective cable for welding,
5... Welding collective cable connection part, 6... Hoses, 7... Power cord, 8... Wire supply device,
9... Winding device, 10... Reel, 11... Rotating joint, 12... Support stand, 13... Holding device of the present invention, 14... Cart, 15... Guide device, 16...
Hanging rod, 17...Table, 18...Gas hose, 19...Power cord, 22...Ring seat, 23...
...Connection shaft, 24...ring body, 25...slip ring.

Claims (1)

[Scope of utility model registration request] A guide member for removing hoses, power cords, etc., for guiding to a welding cable assembly connected to an automatically traveling welding device is rotatably supported on the top of a movable trolley, and fixed around the guide member. A welding cable collection table is suspended via a plurality of hanging rods, and a wire supply device is installed on the rotating part including the hanging rods, and a hose, power cord, etc. leading to the guide member is connected to the lower side of the cart. A holding device for a collective cable for welding, characterized in that it is configured to be introduced from.