| 摘要 |
A welding gun equipped with a retaining unit, which includes a first retaining member and a second retaining member, and retains a stationary gun arm and a movable gun arm. A retaining hole for retaining the stationary gun arm, guide grooves for insertion of rolling members provided on an aim holder that retains the movable gun arm, connecting member insertion holes into which connecting members connecting the first retaining member and the second retaining member are inserted, and a retained member insertion hole for inserting a retained member retained by a moving member that moves the retaining unit to a welding operation location, are formed in the first retaining member and the second retaining member, and the regions where these components are formed are set as thick-walled regions having a greater thickness than other regions. Thus, adequate rigidity is ensured while avoiding an increase in weight. |
| 主权项 |
1. A welding gun equipped with a retaining unit that retains a stationary gun arm, and a movable gun arm configured to approach toward and separate away from the stationary gun arm, wherein:
the retaining unit comprises a first retaining member and a second retaining member sandwiching an arm holder therebetween, the arm holder configured to retain the movable gun arm; in each of the first retaining member and the second retaining member along a thickness direction thereof, there are formed retaining holes configured to retain the stationary gun arm , a guide groove in which rolling members provided on the arm holder are inserted, connecting member insertion holes in which connecting members configured to connect the first retaining member and the second retaining member are inserted, and a retained member insertion hole in which a retained member is inserted, the retained member retained by a moving device configured to move the retaining unit to a welding operation location; regions where the retaining holes, the guide groove, the connecting member insertion holes, and the retained member insertion hole are formed are thick-walled regions having a greater thickness than other regions; and at least two of the connecting member insertion holes are formed so as to sandwich the guide groove therebetween, together with the connecting member that is inserted into one of the connecting member insertion holes passing through a through hole that is formed to penetrate along a thickness direction of the arm holder. |
