Reliability And Safety Analysis of Pneumatic Power-assisted Manipulator

Overview:

  Pneumatic manipulators are increasingly used in modern large-scale parts production, which not only helps workers effectively reduce labor intensity, but also significantly improves production efficiency. However, as operational demands continue to increase, equipment reliability and safety have also become the focus of enterprises. For this reason, many pneumatic manipulators are equipped with a variety of safety devices to ensure a stable and safe operating experience under various working conditions.

  Pneumatic manipulators have high reliability and are suitable for grabbing workpieces of various shapes and sizes. They can carry weights ranging from 50kg to 800kg. This type of manipulator usually has three main installation methods -Column installation, Wall installation, Truss installation, Mobile installation, which can be adapted to different production and assembly environments. The following are several key safety designs of pneumatic power-assisted manipulators, which together ensure the reliability and operational safety of the equipment.

Operational safety

1. Monitor action speed

The moving speed of the manipulator is an important factor affecting operational safety. By installing a safety valve device, the pneumatic power-assisted manipulator can monitor its own rising and falling speed in real time. When an incorrect command or abnormal situation occurs, the safety valve will automatically regulate the movement of the manipulator to prevent injury to the operator due to rapid movements. This feature significantly improves the stability of the robot under high loads, ensuring a smooth and controllable operation.

2. Gas cut-off protection

Once the air source of the pneumatic system is interrupted, the manipulator may not be able to maintain a stable position, increasing operational risks. In order to avoid this situation, the pneumatic power-assisted manipulator is equipped with a "one-way valve" and an "air storage tank device". When the air source is interrupted, this device can support the manipulator to complete 1 to 2 working cycles to ensure that the operation will not be interrupted suddenly. , thereby reducing accidental injuries caused by outage.

3. Safety lock and braking device

Safety locks and braking devices play a key role in the safety design of pneumatic power-assisted manipulators. The braking device can prevent the manipulator from rotating in the air or leaving the set position. When the operator presses the control button, the manipulator will automatically lock in the current operating position. At the same time, after completing the operation, the manipulator can stop in the braking state to avoid damage to the equipment and workpieces caused by misoperation. In this state, all control buttons will stop responding, further improving operational safety.

4. Stop valve protection

In the design of the pneumatic power-assisted manipulator, the "clamping self-locking device" is used to prevent air leakage in any position of the system. The workpiece will only be released in the clamp when the operator gives explicit instructions. This design greatly reduces the risk of accidental loosening or falling off, ensuring that the workpiece is always in a stable clamping state during operation.

5. Proper load protection

During handling and assembly, it is crucial that workpieces are placed safely. The pneumatic power-assisted manipulator adopts a self-locking device. Even if the workpiece does not reach the designated position, the clamp will not automatically release, preventing the workpiece from falling due to misoperation or mechanical error. This self-locking mechanism not only improves the reliability of the equipment, but also effectively reduces possible safety hazards during the production process.

6. Suspension protection

When the workpiece is suspended on the manipulator, in order to prevent accidental release, the manipulator relies on a self-locking device to ensure that the workpiece will not be released in mid-air. The workpiece will remain tight even when the release button is pressed unless the workpiece is slowly and safely lowered to its lowest point. This protective design provides additional safety for high-altitude operations.

7. Limit load protection

The self-locking device of the pneumatic power-assisted manipulator can also provide extreme protection. Even if the operator presses the "release" button, the manipulator will not let the workpiece loosen at the extreme position. The equipment is designed with judgment conditions and will only be released when the workpiece comes into contact with a stable contact surface, thereby minimizing safety hazards caused by errors or misoperations.

Overall:

 pneumatic manipulators have demonstrated high reliability in the production and assembly of large parts. Its multiple safety device design provides comprehensive safety protection for equipment operation, including monitoring moving speed, gas cutoff protection, safety locks and braking devices, etc. These measures jointly ensure the stability and safety of the robot arm under various working conditions. For companies that need to use pneumatic manipulators for a long time and frequently, these safety designs not only provide reliable safety guarantees for operators, but also improve production efficiency, providing efficient and safe support for the company's production operations.