Structural Design and Mechanical Analysis of Strawberry Picking Robot

To address the problems of low efficiency caused by repetitive actions, personnel fatigue, non productive movements, and fruit damage caused by uneven operating force and frequent touching and squeezing during manual strawberry picking, a strawberry picking robot suitable for both ridge planting and elevated planting modes is proposed. The robot integrates the mobile platform, multi-degree-of-freedom robotic arm, and gripper-type end-effector. It employs servo motor drives and ball screw transmission mechanisms to enhance motion control precision and operational stability. Finite element analysis is conducted to validate the overall structural integrity, with results indicating that stress distribution in critical components and overall deformation comply with material allowable limits, confirming the reliability of the structural design. Modal analysis further verifies that all vibration modes effectively avoid the operational frequency range, eliminating resonance risks. The robot has features such as compact structure, smooth operation, and precise positioning, which offers a cost-effective and easily maintainable solution for the automation of fruit and vegetable harvesting.