Button type energy storage element diaphragm group punching device

A button type energy storage element diaphragm punching and assembling device is used for achieving batch punching and assembling of button type energy storage element diaphragms. The device comprises a die frame, an array type punch, a concave die plate, a film pushing device, an auxiliary frame, a hydraulic lifting platform, a controller, a die punching air cylinder, a film pushing air cylinder and the like. Different from a single punching mode of a traditional punching die, the diaphragm punching device realizes batch punching of diaphragms by utilizing the array type punches and the concave die plate and by means of the negative plate with the array type material grooves; and the punched diaphragm is accurately assembled on the surface of the pole piece in the negative pole cover by using the diaphragm pusher and the diaphragm guide ring. According to the device, batch punching and combination of the button type energy storage element diaphragms can be achieved, punching and combination are completed at