| US 7,378,613 B2 | ||
| Arc welding robot | ||
| Toshiyuki Mishima, Neyagawa (Japan); Yaushi Mukai, Osaka (Japan); Wataru Takahashi, Osaka (Japan); Takashi Nagai, Osaka (Japan); and Takayasu Ohara, Osaka (Japan) | ||
| Assigned to Matsushita Electric Industrial Co., Ltd., Osaka (Japan) | ||
| Appl. No. 10/567,977 PCT Filed Jun. 09, 2005, PCT No. PCT/JP2005/010593 § 371(c)(1), (2), (4) Date Feb. 10, 2006, PCT Pub. No. WO2006/001177, PCT Pub. Date Jan. 05, 2006. |
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| Claims priority of application No. 2004-186084 (JP), filed on Jun. 24, 2004. | ||
| Prior Publication US 2007/0017911 A1, Jan. 25, 2007 | ||
| Int. Cl. B23K 9/12 (2006.01) | ||
| U.S. Cl. 219—125.1 [219/137.9; 901/42] | 5 Claims |
| 1. An arc welding robot actuatable according to an operation pattern based on a previously set program or manually operated
for welding, comprising:
a robot main body structured such that with the operation thereof is controlled, said robot main body including a base portion,
a swing portion mounted on the base portion, an upper arm portion mounted on the swing portion, and a forearm portion mounted
on the upper arm portion;
a wire feed device for feeding a welding wire;
a rotary pipe shaft configured to hold the wire feed device on the forearm portion such that the wire feed device is rotated
on a rotation surface thereof extending substantially in a same direction as a feeding direction of the welding wire; and
a connecting cable and/or a gas hose necessary to execute welding,
wherein the connecting cable and/or the gas hose are in operative connection with the wire feed device, are guided from the
wire feed device through a hollow portion of the rotary pipe shaft, and are then guided through an inside of the forearm portion,
the upper arm portion, the swing portion, and the base portion of the robot main body.
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