The utility model belongs to the diaphragm production technical field discloses diaphragm connects the device, can through the first diaphragm of connecting the platform and the first pressure plate clamping, through the second diaphragm of connecting the platform and the second pressure plate clamping, then through the first end of first diaphragm and the
tail end of second diaphragm are bonded with bonding structure, to realize automatic bonding, need not manual operation, in addition, since the first pressure plate and the second pressure plate of the diaphragm connecting device are independently set, can change the mode and order of pressing diaphragm according to actual operation needs, for example, through two pressure plates press two diaphragms simultaneously, or, control one of the pressure plates to press one of the diaphragms first, then control the other pressure plate to press the other diaphragm, still can only through one of the pressure plates to press one of the diaphragms, so that the operator carries out
cutting or finishing to the end face of the diaphragm, thereby making the operation flexibility of the diaphragm connecting device stronger.