Patent ID: 8387961

Claim:
A vacuum chuck comprising: a main body including a support projection, a vacuum groove, an installation space, a vacuum space, a filter space, a vacuum hole, an inlet, and an outlet; an air saving valve installed in the installation space; a vacuum sensor installed in the vacuum space; a vacuum generator installed in the filter space; a pressure gauge communicating with the inlet that is mounted on the front side of the main body, said pressure gauge indicating a pressure state of compressed air flow into the vacuum chuck; a vacuum gauge communicating with the vacuum space that is mounted on the front side of the main body, said vacuum gauge indicating a vacuum state in the vacuum space; a switch that is installed in the front-middle of the main body to move to and fro so as to open and close the vacuum space; a main body cover that is air-tightly coupled to the lower part of the main body; and a filter cover that is coupled to the lower part of the filter space, wherein the support projection and the vacuum groove are arranged in a lattice form on the top surface of the main body, the vacuum hole is formed on the filter space and communicates with the vacuum groove, the inlet communicates with the installation space on the rear side of the main body, and the outlet communicates with the vacuum space on the rear side of the main body.