Abstract: A pushing structure of a clamping mechanism is disclosed which comprises a working platform and a chuck. The working platform has a clamping shaft inserted in the chuck, and the chuck has a piston seat and a movable seat at a center of the piston seat for an insertion of the clamping shaft. The chuck further comprises a base at a bottom of the piston seat corresponding to the movable seat and a projection at a bottom of the base. The projection provides an upward push force to the working platform when the piston seat is lifted to release the clamping shaft of the working platform.

Abstract: A pushing structure of a clamping mechanism is disclosed which comprises a working platform and a chuck. The working platform has a clamping shaft inserted in the chuck, and the chuck has a piston seat and a movable seat at a center of the piston seat for an insertion of the clamping shaft. The chuck further comprises a base at a bottom of the piston seat corresponding to the movable seat and a projection at a bottom of the base. The projection provides an upward push force to the working platform when the piston seat is lifted to release the clamping shaft of the working platform.

Abstract: A float type clamping mechanism is provided, comprising a workpiece pallet having a central post provided on its bottom surface and a chuck. The chuck can be releasably coupled to the central post. The chuck has a base, a top seat, a piston seat with spring members provided between the piston seat and the top seat, a movable socket having movable detents provided around its periphery, and a bottom cover. When the central post of the workpiece pallet is inserted into the movable socket, the movable detents displaced inward to detent the central post so as to allow the movable socket to float upward slightly, and the movable socket is pressed downward through simple mechanism to clamp the central post firmly so that zero clamping effect between the workpiece pallet and the chuck can be achieved.

Abstract: A float type clamping mechanism is provided, comprising a workpiece pallet having a central post provided on its bottom surface and a chuck. The chuck can be releasably coupled to the central post. The chuck has a base, a top seat, a piston seat with spring members provided between the piston seat and the top seat, a movable socket having movable detents provided around its periphery, and a bottom cover. When the central post of the workpiece pallet is inserted into the movable socket, the movable detents displaced inward to detent the central post so as to allow the movable socket to float upward slightly, and the movable socket is pressed downward through simple mechanism to clamp the central post firmly so that zero clamping effect between the workpiece pallet and the chuck can be achieved.