Answer: Joint number, arrangement, workload, range of motion and degrees of freedom are jointly defined.
Answer analysis: The working range is defined by the type of joints the robot is equipped with, its number of joints, arrangement, workload, range of motion, and degrees of freedom. Here is a detailed explanation of these factors:
1. Joint type:
- A joint is a structure in a robot that connects two or more parts. It has the function of enabling the adjacent parts to move relative to each other. Joints can be divided into rotational joints and translational joints (or translational joints) according to the different ways of movement. Rotary joints allow the connected parts to rotate around an axis, while translational joints allow the parts to translate in a straight line.
- Different types of joints have different movement characteristics and capabilities, which directly affect the robot's working range and flexibility.
2. Number of joints:
- The number of joints determines the complex movements and degrees of freedom that the robot can perform. For example, five-axis and six-axis joint robots have five and six rotation axes respectively, which can perform more complex and delicate tasks.
- An increase in the number of joints usually means that the robot has a larger working range and higher flexibility.
3. Joint arrangement:
- The arrangement of joints also affects the robot's working range. For example, a SCARA robot has three parallel rotation axes and one linear axis, which allows it to have excellent positioning accuracy and speed in a two-dimensional plane.
- Different arrangements are suitable for different application scenarios and task requirements.
4. Workload:
- Workload refers to the maximum weight and force that a robot can bear and operate. This depends on factors such as the type, size and material of the joints.
- When designing and selecting the appropriate joint structure, the size and type of workload need to be considered to ensure that the robot is capable of the required tasks.
5. Range of motion and degrees of freedom:
- The range of motion refers to the set of all points that can be reached by the end of the robot's manipulator arm or the center of the wrist, also known as the working area. It determines the area that the robot can cover in space.
- Degrees of freedom refer to the number of dimensions in which the robot can move independently. A six-axis robot has six degrees of freedom and can achieve movement in any direction and angle in three-dimensional space.
In summary, the working range is defined by multiple factors such as the type of joints equipped by the robot, the number of joints, the arrangement, the workload, the range of motion and the degrees of freedom. These factors are interrelated and influence each other, and together determine the robot's working capabilities and application scope.