Monitoring device, tool, and method for monitoring a fracture in a punching machine tool mounted in a machining tool

摘要

it is a light for a tool in a stamping machine (1) to control a fraction of the tool may bearbeitungswerkzeugs (33) is provided. the control body has a druckluftversorgungseinrichtung (19), a first pressure switch (20) with a vorbestimmbaren umschaltdruck and kontrollzylinder (23) with a tastkolben (24).the tastkolben (24) has a piston rod (25), and he is in the kontrollzylinder (23), a first space (26) between the tastkolben (24) and a first end (28) of the kontrollzylinders (23) and a second space (27) between the tastkolben (24) and a second the end (29) of the kontrollzylinders (23) cycle.the tastkolben (24) has a predetermined hubweg in the kontrollzylinder (23) between the first end and the second end (28), (29), and the tastkolben (24) is a grenzposition provided in the piston rod (25) in the bearbeitungswerkzeug (33) of justice.the kontrollzylinder (23) has the first end of a versorgungsu00f6ffnung (30) with the druckluftversorgungseinrichtung (19) and the first pressure switch (20) is connected, and a abblasu00f6ffnung (31).the abblasu00f6ffnung (31) is arranged in such a way that the first space (26) is connected, if the tastkolben (24) in a position in a fracture of the bearbeitungswerkzeugs (33) is closer to the second end (29) as the grenzposition, and that the connection with the first space (26) is interrupted, when the tastkolben (24) in the grenzposition isor from the second end (29) farther than the grenzposition is, if there is no breach of bearbeitungswerkzeugs (33) is available.