Mechanical arm for field robot

The invention discloses a mechanical arm for a field robot, belongs to the technical field of mechanical arm manufacturing, and solves the problems that an existing sampling mechanical arm can realize high-precision and high-degree-of-freedom grabbing action, but cannot complete the action of separating a sample from a carrier in the field. The device comprises a first steering engine, a second steering engine, a third steering engine, a fourth steering engine, a fifth motor, a sixth motor, a first arm, a second arm, a rotating table, a base, a clamping hand rotating frame driving gear, a clamping hand rotating frame driven gear, a hole drill, a hole drill base, a first U-shaped base, two L-shaped connecting pieces, a hole drill mounting plate, two clamping hand assemblies and a clamping hand rotating frame assembly. The device is used for effectively collecting plant or rock samples in the field. 一种用于野外机器人的机械臂，属于机械臂制造技术领域，本发明解决现有采样机械臂可以实现高精度和高自由度的抓取动作，但是在野外无法完成将样品与载体分离动作的问题，本发明所述装置包括一号舵机、二号舵机、三号舵机、四号舵机、五号电机、