Electric vehicle battery-changing mechanical arm and front cover plate battery taking and placing mechanism

The invention discloses a front cover plate battery taking and placing mechanism of an electric vehicle battery-changing mechanical arm. The front cover plate battery taking and placing mechanism comprises an operation arm and is characterized in that the operation arm is used for being connected with a rotary arm in the electric vehicle battery-changing mechanical arm, the whole operation arm isvertically arranged, a mounting rack is connected to the lower end of the operation arm, and a plurality of suckers with downward sucking openings are mounted on the mounting rack; the operation arm comprises an operation arm vertical section, the upper end of the vertical section which can rotates along the axis of the vertical section is connected to the rotary arm, an operation arm horizontal section is further connected to the lower end of the operation arm vertical section to allow the whole operation arm to be of an 'L'-shaped structure; the mounting rack is connected to the lower surface of the outer end of the