This invention discloses a quick-change device for a oscillating saw blade. An oscillating sleeve is vertically mounted in the inner cavity of the
machine housing via bearings. An oscillating shaft is vertically movably inserted into the oscillating sleeve. The upper end of the oscillating shaft extends upwards from the upper end of the oscillating sleeve, and the lower end extends downwards from the lower end of the oscillating sleeve and is fixedly connected to a connecting block. The
insertion end of the saw blade is inserted between the connecting block and the oscillating sleeve. A clamping structure is provided between the oscillating shaft and the oscillating sleeve to press and lock the
insertion end of the saw blade between the connecting block and the oscillating sleeve. An unlocking structure is provided between the oscillating shaft and the
machine housing to release the clamping force of the connecting block on the
insertion end of the saw blade. A locking structure is provided between the button and the
machine housing to lock the button in a horizontal position. An anti-pinch structure is provided between the button and the machine housing. This device has a simple and compact structure, is easy to use and operate, allows for quick saw blade replacement, and has an anti-pinch function.