In robotic arms, hydraulic buffers (or hydraulic shock absorbers) also play an important role in controlling and managing the motion of the arm, thereby enabling smooth, precise, and reliable operation. The following are several key functions of hydraulic buffers in robotic arms:
1. Smooth deceleration: Robotic arms often need to decelerate or stop during movement in order to perform tasks accurately. Hydraulic buffers provide a damping effect when the arm approaches the target position, allowing it to decelerate smoothly and avoid violent impacts and vibrations.
2. Preventing overshoot: The motion of a robotic arm may overshoot before reaching the target position, causing collisions or damage to mechanical components. Hydraulic buffers can limit the maximum speed of the arm's movement and gradually decelerate it as it nears the target, effectively preventing overshoot.
3. Protecting components: Moving parts and joints in a robotic arm can be affected by shocks and vibrations, which may reduce their service life and performance. Hydraulic buffers mitigate the speed of moving parts and cushion impacts, thereby protecting critical components of the arm.
4. Enhancing precision: Robotic arms require high‑precision motion for various tasks such as assembly, welding, and material handling. Hydraulic buffers provide a smooth motion trajectory, helping to improve positioning accuracy and task execution performance.
5. Reducing noise and vibration: Hydraulic buffers effectively reduce the noise and vibration generated during the arm's motion, improving the working environment and lessening the impact of mechanical equipment on the surrounding environment and operators.
In summary, hydraulic buffers in robotic arms serve multiple functions, including smooth control, overshoot prevention, component protection, precision enhancement, and noise/vibration reduction. They are essential for ensuring the reliability and performance of robotic arms.

