Method and apparatus for fusing lead wires of coils to...

B - Operations – Transporting – 23 – K

Patent

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Details

B23K 11/11 (2006.01) B23K 11/00 (2006.01) B23K 11/31 (2006.01) H01R 39/32 (2006.01) H01R 43/02 (2006.01)

Patent

CA 2197082

A fusing electrode (36) is mounted on a vertically movable carriage raised by a first air actuator and lowered by gravity into engagement with a commutator tang (120). During a fusing cycle, varying fusing pressure is applied to the tang (120) by means of a fast- acting second air actuator (46) having a downwardly-extending piston rod engageable with the carriage and being controlled by a programmable pressure regulating valve (66). To decrease the response time and increase the follow through of the second air actuator (46), the programmable pressure regulating valve (66) is mounted directly on top of the second air actuator (46) with its air outlet located as close to the cylinder (48) of the second actuator (46) as permitted by the air fittings connecting them. Surge tanks (82, 84, 86) associated with the programmable valve (66) ensure rapid response times.

Electrode de soudure (36) montée sur un chariot se déplaçant verticalement, s'élevant par l'effet d'un vérin à air comprimé et s'abaissant par gravité jusqu'à entrer au contact d'une radiale de collecteur (120). Au cours d'un cycle de soudure, une pression de soudure changeante est appliquée sur la radiale (120) grâce à un deuxième vérin à air comprimé à effet rapide (46) comportant une bielle dirigée vers le bas, venant au contact du chariot, et commandée par une vanne (66) de régulation de pression programmable. Pour réduire le temps de réaction et accroître la poursuite d'effet du deuxième vérin à air comprimé (46), la vanne de régulation de pression programmable (66) est montée directement sur le deuxième vérin à air comprimé (46), sa sortie d'air étant située aussi près du cylindre (48) de ce deuxième vérin (46) que les fixations reliant l'un et l'autre le permettent. Des chambres d'égalisation de pression (82, 84, 86) associées à la vanne programmable (66) assurent des temps de réaction rapides.

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