Coaxial clamp

A clamp comprising:

• a first clamping assembly, a second clamping assembly, and a guide shaft;
• the first clamping assembly including a base, a first clamper, a first connection member, and a first buffer;
• the base having a grip formed on an end of the base, and the guide shaft being inserted through the base, wherein the base has an operation lever and a release lever which are formed on an outer wall of the base, such that the base is driven by the operation lever to pull the guide shaft to move;
• the base further including a release structure driven by the release lever to remove the base from the guide shaft, the first clamper accommodating the guide shaft, and the first buffer being fitted on and rotated with respect to an outer wall of the first connection member, wherein the first clamper is fitted on the first buffer and the first connection member, the first clamper is rotatable relative to the first connection member, and the first clamper and the first buffer are connected with the base;
• the second clamping assembly including a second clamper, a second connection member, and a second buffer, the first buffer accommodating the guide shaft, the second buffer being fitted on and rotated with respect to an outer wall of the second connection member, wherein the second clamper is fitted on the second buffer and the second connection member, the second clamper is rotatable relative to the second connection member, and the second clamper and the second buffer are connected with the second connection member.