Pneumatic cylinder is not in place and its principle

①. Introduction

The Pneumatic cylinder is a common pneumatic actuator, widely used in various industrial automation equipment. However, the problem that the cylinder is not in place is one of the common faults, which seriously affects the normal operation of the equipment. This paper will focus on the reasons and principles of the cylinder is not in place.

②.the working principle of the cylinder

Cylinder is a linear motion mechanism driven by air pressure, and its working principle mainly includes the following points:

1. Air pressure drive: the piston and piston rod are provided in the cylinder, and the piston moves in the cylinder through the air pressure difference, thereby driving the piston rod for linear movement.

2. Position sensing: The cylinder is usually equipped with a position sensor for real-time monitoring of the position of the piston to ensure the accuracy of the piston in the preset position.

3. Motion control: By controlling the order and time of air intake and exhaust of the cylinder, the direction and speed of the piston can be controlled.

4. Load adaptation: The cylinder can adapt to various forms of load, including push, pull, rotation, etc., which makes the cylinder has a wide range of applicability in various industrial applications.

③, the reason why the cylinder is not in place

The reasons why the cylinder is not in place can be summarized as follows:

1. Insufficient air pressure: When the air source pressure is lower than the required pressure of the cylinder, the piston cannot reach the preset position.

2. Air pipeline blockage: The pipeline between the air source and the cylinder may be blocked, resulting in the failure of air pressure to transfer to the cylinder,3. Mechanical failure: The piston or piston rod is affected by mechanical failure, such as stuck, wear, etc., causing the piston to fail to reach the preset position.

4. Position sensor fault: The position sensor may be faulty, such as cable break or poor contact, resulting in inaccurate position feedback.

5. Control failure: The control circuit or control program fails, resulting in the failure to correctly control the movement of the cylinder.

④, the solution

To solve the above problems, the following solutions can be adopted:

1. Check the air source pressure: Ensure that the air source pressure meets the required pressure of the cylinder. If the air source pressure is insufficient, adjust or replace the air source device.

2. Check the air pipeline: check whether the pipeline between the air source and the cylinder is unimpeded to avoid blockage affecting the gas transmission.

3. Check mechanical faults: Check the piston and piston rod. If mechanical faults such as stuck and wear are found, they should be repaired or replaced in time.

4. Check the position sensor: Check and debug the position sensor to ensure that it works normally and accurately feedback the piston position.

5. Check the control circuit and control program: check and debug the control circuit and control program to ensure that it works normally and can correctly control the movement of the cylinder.

⑤. Conclusion

In this paper, the working principle of the cylinder and the reasons for not being in place are discussed in detail. By understanding the working principle of the cylinder and common failure causes, you can take appropriate solutions for repair and maintenance. In practical applications, preventive maintenance and high-quality products should be emphasized to improve the reliability of equipment and reduce the failure rate.