Clamp mechanism

A clamp mechanism comprising:

• a base defining two first sliding grooves horizontally and a guiding groove substantially perpendicular to the sliding grooves;
• a sliding member slidable relative to the base and defining two second sliding grooves arranged at an oblique angle relative to the first sliding grooves;
• a pair of first connecting members slidably received in the first sliding grooves respectively;
• a pair of second connecting members slidably received in the second sliding grooves respectively;
• a first clamp member connected to one first connecting member and one second connecting member;
• a second clamp member connected to the other first connecting member and the other second connecting member;
• an impelling member fixed to the sliding member and slidably engaging in the guiding groove, the impelling member being positioned between the first and second clamp members;
• and
• a linear driver capable of driving the sliding member to drive the first, second clamp members to move along the first, second sliding grooves such that the first, second clamp members move toward or away from each other to clamp or release an object, and the impelling member capable of moving upward away from the object or downward toward the object when clamping or both releasing and removing the object, respectively.