Mounting head sliding locking mechanism of array chip mounter

The utility model provides a mounting head sliding locking mechanism of an array chip mounter. The locking mechanism comprises upside-down strips on a backboard base body and a pulling block on a mounting head base body. The backboard base body is installed with two upside-down strips and two straight sliding rails. An upper end and a lower end of the mounting head base body are installed with sliding blocks which are connected with the straight sliding rails on the backboard base body to guide and move to positioning. Guide holes on the mounting head base body are provided with two tensioning screws. Reset springs which are disposed through the tensioning screws and matched with the tensioning screws are connected with screw holes on the pulling block. Through a puller screw, a parallel stator plate, and the tensioning screws, the pulling block is pulled out and is matched and locked with the two upside-down strips on the backboard base body. The locking mechanism is simple in structure, convenient in operat