Stress-free clamping platform and clamping method

Abstract

The invention discloses an unstressed clamping platform and a clamping method, and the unstressed clamping platform comprises a platform main body which is internally provided with a cold and hot medium flow channel, a dielectric layer which is coated on the upper surface of the platform main body and has a temperature-sensitive adhesion characteristic, and a temperature control unit which is connected with the cold and hot medium flow channel, the invention further comprises a stress-free clamping method adopting the platform, such as placing a workpiece, fixing the workpiece by a medium layer through a cooling medium, releasing fixation through a heating medium after machining and the like. According to the clamping device, stress-free clamping of a workpiece is achieved, the workpiece can be conveniently fixed and taken down, in addition, a negative pressure adsorption system is further arranged, instant and strong initial fixing force can be provided through negative pressure adsorption, and the clamping device is particularly suitable for occasions with heavy loads or needing to resist large cutting force. The two modes can be used independently or in a combined mode, the reliability and the application range of the clamping platform are remarkably improved, and functional complementation is achieved.

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