Answer: Pitch is not the left-right movement of the robot wrist.
Answer analysis: Pitch is not the left-right movement of the robot wrist. In fact, pitch refers to the movement of the robot wrist in the vertical direction, that is, swinging up and down or tilting.
This movement mode enables the robot to change the angle and height of the grasped object, which is suitable for tasks that require grasping and placing operations in three-dimensional space.
The movement modes of the robot wrist usually include the following:
1. Rotation: The wrist moves in a circle around a certain axis to change the orientation of the object.
2. Pitch: The wrist swings or tilts in the vertical direction, as mentioned above.
3. Roll: The wrist swings or tilts in the horizontal direction, perpendicular to the pitch direction.
4. Swing: The wrist moves like a pendulum within a certain range.
5. Translation: The wrist moves in a straight line in a certain direction.
6. Multiple degrees of freedom: The wrist has multiple degrees of freedom and can perform a combination of multiple movements at the same time.
In robot design, the freedom of the wrist is crucial to achieve any direction and posture of the hand in space. Usually, in order to make the hand in any direction in space, the wrist is required to be able to rotate about the three coordinate axes X, Y, and Z in space, that is, to have three degrees of freedom: roll, pitch, and yaw. These three degrees of freedom correspond to different movement directions of the wrist in space:
* Roll: The rotation of the wrist around its axis.
* Pitch: The swing or tilt of the wrist in the vertical direction.
* Yaw: The rotation of the wrist in the horizontal direction, usually perpendicular to the roll direction.
Therefore, pitch is one of the important vertical movement modes of the robot wrist, not left and right movement. Left and right movement is usually achieved through the swivel joint or other related joints of the robot arm.