Patent FR-2998820-A1 (FR)
Title: Counter electrode, useful in spot welding device, includes first and second welding portions, and fixing body mounted on support in welding position, where first welding portion is configured to interact with electrode to weld piece
Inventor: DIOTALEVI LOUIS
IPC: B23K11/10
Filed: 2012-12-03
Abstract: The counter electrode comprises a first welding portion, and a fixing body mounted on a support (16) in a first welding position. The counter electrode is configured to cooperate with an electrode (12) of a spot welding device. The counter electrode and the electrode extend along an axis of welding. The first welding portion is arranged perpendicular to the welding axis, and is configured to interact with the electrode to weld a piece (20) interposed between the electrode and the counter-electrode. The counter electrode further comprises a second welding portion and a first welding face. The counter electrode comprises a first welding portion, and a fixing body mounted on a support (16) in a first welding position. The counter electrode is configured to cooperate with an electrode (12) of a spot welding device. The counter electrode and the electrode extend along an axis of welding. The first welding portion is arranged perpendicular to the welding axis, and is configured to interact with the electrode to weld a piece (20) interposed between the electrode and the counter-electrode. The counter electrode further comprises a second welding portion, a first welding face, a second welding face, a first welding head, which is connected to a first end of the body of the counter-electrode, a second welding head, which is connected an opposite second end of the body of the counter-electrode, and a fixing unit provided on the support. The counter electrode is fixed to the support in a second welding position in which the second welding portion is arranged perpendicular to the welding axis to interact with the electrode to weld the piece. The first welding face extends perpendicular to the welding axis, and defines the first welding portion. The second welding face is shifted angularly compared to the first welding face according to a second axis of orientation perpendicular to the welding axis, and delimits the second welding portion. The counter-electrode is angularly shifted from its first welding position to the second welding position according to the second axis of orientation. The first welding face defines a third welding portion, which is angularly shifted compared to the first welding portion about a third axis of orientation, which is parallel to the welding axis. The counter-electrode is further angularly shifted from the first welding position to the third welding position about the third axis of orientation. The third welding portion is arranged perpendicular to the welding axis to interact with the electrode. The first and second welding heads define the first and second welding faces, respectively. The body of the counter-electrode comprises a first fixing face and an opposite second fixing face. The first fixing face extends perpendicular to the first welding face and the second welding face, and is adapted to be supported on a fixing face (40) complementary to a support of the counter-electrode and to fix the counter-electrode on the support in the first or second welding position. The second fixing face extends perpendicular to the first and second welding faces, and is adapted to be supported on the fixing face complementary to the support of the counter-electrode and to fix the counter-electrode on the support in the third welding position or a fourth welding position. A first symmetry plane extends according to the second axis of orientation. A second symmetry plane extends according to the third axis of orientation.