Mechanical arm device for multi-layer stock bin

The utility model provides a composite bin manipulator device used for operating a composite material three-dimensional bin, belonging to the mechanical manufacturing field. The utility model realizes three-dimensional displacement and bin retaining, realizes three-dimensional smooth displacement by adopting a servo motor and a lead rail and can enlarge the operation distance and range of the prior manipulator. The manipulator device mainly comprises a vertically fixed rack, the side of the rack is connected with a vertical hoisting mechanism and at least one set of longitudinal lead rails, the side of the vertical hoisting mechanism is provided with a holding device; the vertical hoisting mechanism is provided with a vertical frame the side of which is connected with a fixed plate, a lateral roller of the fixed plate is meshed with the lead rails of the rack; the holding device is provided with a set of holding seats and a fork-taking plate, the rear part of the holding seats is connected with driving chains