Robot joint device

A robot joint device, comprising:

• a joint component comprising a first pivot shaft, a second pivot shaft and a third pivot shaft;
• a first pivot component pivotally connected to the first pivot shaft;
• a second pivot component pivotally connected to the second pivot shaft;
• and
• a third pivot component pivotally connected to the third pivot shaft;
• wherein the joint component further comprises a joint body, and the joint body is at least a portion of a sphere, and the first pivot shaft, the second pivot shaft and the third pivot shaft are connected to a spherical surface of the sphere of the joint body, and a first central axis of the first pivot shaft, a second central axis of a second pivot shaft and a third central axis of a third pivot shaft pass through a center of the joint body,
• wherein the joint component has a body outer contour surface, the first pivot shaft, the second pivot shaft and the third pivot shaft are fixedly connected to the body outer contour surface, and
• wherein the first pivot component has a first slide groove, the second pivot component has a second slide groove, the third pivot component has a third slide groove, and the first pivot shaft, the second pivot shaft and the third pivot are pivotally connected to the first slide groove, the second slide groove and the third slide groove respectively.