Tray cavity grabbing equipment with high grabbing stability through mechanical arm

The invention belongs to the technical field of agricultural seedling tray grabbing devices, and particularly relates to a tray hole grabbing device with high grabbing stability through a manipulator, which comprises a device main frame, an anti-falling drag chain mounting plate is mounted on one side of a lifting servo sliding table through bolts, a pneumatic clamp is arranged at the lower end of a movable sliding block, and anti-falling clamp bodies are distributed on the inner side surface of the pneumatic clamp at equal intervals; a left-right movement numerical control sliding table is fixedly mounted on the side, close to the upper mounting frame, of the lifting servo sliding table, and a semi-arc auxiliary sliding block is arranged on the upper end face of the left-right movement numerical control sliding table. The problem that when a lifting servo sliding table drives a threading drag chain to move, a mounting plate is prone to loosening in long-time reciprocating movement is solved, the problems tha