Industrial robots have 6 movable joints (axes), and the definition of motion axes varies for different industrial robots. The axis used to ensure that the end effector reaches any position in the workspace is called the basic axis or spindle, and the axis used to achieve any spatial posture of the end effector is called the wrist axis or secondary axis.
The first axis is the part that connects the base, mainly responsible for the weight of the upper axis and the left and right rotation of the base. The left and right rotation is caused by the transmission of the electric motor and reducer. Each axis replaces a movement mode in one direction.
Second axis: controls the forward and backward swing of the robot's main arm and the up and down movement of the entire arm.
Three axes: Three axes are also used to control the forward and backward swing of robots, but the range of the swing arm is smaller than the second axis.
Fourth axis: The fourth axis is the circular tube part on the robot that can rotate freely. The range of motion is equivalent to a human arm, but not 360 degrees. Some wires are within the same range as human arms.
Fifth axis: The fifth axis is very important. After you have almost adjusted the position, you need to accurately locate the product and use the fifth axis, which is equivalent to the wrist part of a person. The five axis control and up and down fine-tuning of the robotic arm's rotation usually allow the product to flip when it is grabbed.
Sixth axis: When the fifth axis is positioned on the product and requires some minor modifications, the sixth axis is needed. The sixth axis is equivalent to a turntable that can rotate 360 ° horizontally. Can more accurately locate the product. The rotation function of the fixture at the beginning and end of the sixth axis can rotate 360 degrees.
The six axes of industrial robots are driven by electric motors equipped with reducers. The movement mode and direction of each axis are different. The 6-axis robot ensures that the end effector reaches any position in the workspace through the 1, 2, and 3 basic axes, and achieves any spatial posture of the end effector through the 4, 5, and 6 axes. Because we need to achieve 6 degrees of freedom at the end, we need 6 axes. In fact, each axis of a six axis robot is operated by simulating each joint of a human hand. Through flexible six axis robots, enterprise production will become more convenient and efficient.