| 摘要 |
Apparatus for welding welding studs (1) onto a steel body (2) to form a cooperating construction is described. According to the invention the apparatus comprises a rotatably journalled spindle (89) with vertical axis of rotation (90), supported by a stand (3) and arranged to be moved stepwise in relation to the steel body (2) by an actuating cylinder (21) to a new welding position and to be fixed in relation to the steel body (2) in each such welding position. The apparatus also includes drive equipment (85, 86) to rotate the spindle (89) about its axis of rotation (90), said spindle (89) comprising a chuck (96) located at its lower end to clamp a welding stud (1) to be welded by friction welding, so that the welding stud (1) and a spindle (89) form a rotating unit without relative movement of rotation therebetween. Supply members (110, 111, 112, 115) supply welding studs (1) to engagement position for the chuck (96). Furthermore, pressure members (103, 104, 110) are arranged to press the welding stud (1) clamped by the chuck (96) against the steel body (2) to generate friction therebetween. |
