Shielding plate of ultrasonic cleaning machine for PCB production

The utility model discloses a shielding plate of an ultrasonic cleaning machine for PCB (printed circuit board) production, which belongs to the field of shielding plates and comprises a cleaning machine body and a cleaning tank arranged on the cleaning machine body, sliding rails are respectively arranged on the front surface and the rear surface of the cleaning machine body, guide rails are respectively connected onto the two sliding rails in a sliding manner, and the cleaning tank is arranged on the cleaning machine body. A shielding plate part is fixedly connected to the upper portions of the two guide rails, a sound insulation assembly is arranged on the shielding plate part, a handle is arranged on the upper portion of the shielding plate part, the sound insulation assembly comprises a silencing groove formed in the shielding plate part, a rubber pad is arranged on the inner wall of the silencing groove, a silencing coating is arranged on the inner side of the rubber pad, and a plurality of sound absorp