Stud welding device

B - Operations – Transporting – 23 – K

Patent

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Details

B23K 9/20 (2006.01)

Patent

CA 2203013

Stud welding device with an axially displaceable adjusting element (3, 17) for displacement from a front position into a rear position and back, in which a magnetic field and a coil (15) interact in such a way that, when the coil (15) is connected to a controllable current source (41) an axial force is produced in order to displace the adjusting element (3, 17), the movement of which is transmitted to a stud holder (2), characterized in that the coil (15) is rigidly arranged on a hollow body (14) which is connected to the adjusting element (3, 17) and is arranged axially movably in an air gap (13) between a magnetizable core (8) and a magnetizable sheath (10), the magnetic field being conveyed via at least one yoke (9) connecting the core (8) and the sheath (10) while passing radially through the coil (15), the coil exerting on the adjusting element (3, 17) an axial force acting only in one direction as a function of the direction of current during current control.

Un dispositif à souder des goujons comprend un élément d'ajustement (3, 17) axialement mobile entre une position antérieure et une position postérieure et vice-versa. Un champ magnétique et une bobine (15) interagissent de sorte que lorsque la bobine (15) est connectée à une source réglable de courant (41) une force axiale est produite pour déplacer l'élément d'ajustement (3, 17), le déplacement de celui-ci étant transmis à un porte-goujons (2). La bobine (15) est rigidement montée sur un corps creux (14) connecté à l'élément d'ajustement (3, 17) et peut se déplacer axialement dans un entrefer (13) entre un noyau magnétisable (8) et une enveloppe magnétisable (10). Le champ magnétique est transmis par au moins une culasse (9) qui interconnecte le noyau (8) et l'enveloppe (10) en traversant radialement la bobine (15). La bobine exerce sur l'élément d'ajustement (3, 17) une force axiale dans une seule direction en fonction de la direction du courant pendant la régulation du courant.

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