Flexible robots and rigid robots are both types of industrial robots, and the main difference between them lies in their structure and usage:

Structure: Flexible robots typically have more flexible body cavities and/or joint structures, allowing for more complex form transformations, while rigid robots are 

composed of rigid rods and their joint connections, with relatively fewer degrees of freedom in motion.

Control method: Flexible robots usually use force and visual perception based control systems, while rigid robots mainly use programming control.

Application areas: Flexible robots are mainly used in healthcare and service robots, such as surgical robots, rescue robots, grass cutting robots, etc; Rigid robots are 

mainly used in automated production equipment such as assembly, spot welding, painting, cutting, etc. on industrial production lines.

Advantages and disadvantages: Flexible robots have the advantages of flexible operation, injury avoidance, and strong adaptability, making them more suitable for 

complex fields that require more degrees of freedom control; Rigid robots, on the other hand, have strong load-bearing capacity, high operational accuracy, and 

excellent stability, making them more suitable for fields that require high-quality and high-precision control.

A rigid robot refers to a robot composed of rigid rods and their joint connections, whose joints can move in various degrees of freedom. The typical application areas 

of this type of robot include automated production equipment such as assembly lines, spraying, and cutting. Due to the rigidity of its main structure, rigid robots have 

the characteristics of strong load-bearing capacity, high operational accuracy, and excellent stability performance.

Compared to rigid robots, flexible robots have more flexible body cavities or joints, allowing them to undergo more complex morphological transformations, and these 

transformations often mimic the free movement of the human body. They typically use force and visual perception based control systems, suitable for fields such as 

healthcare and service robots. For example, flexible robots can be used in fields such as surgical robots, rescue robots, grass cutting robots, etc. They have advantages 

such as flexible operation, injury avoidance, and better adaptability.

Therefore, compared to rigid robots, flexible robots have better characteristics such as high repeatability, positioning accuracy, high-precision processing, strong 

adaptability, and the ability to resist external interference, making them more suitable for complex fields that require more degrees of freedom control.

In summary, although flexible robots and rigid robots have many differences in structure and usage, they are both important tools in the production and service fields, 

with their own advantages and disadvantages, and can be selected according to specific application scenarios and needs.