| 摘要 |
A protective glass unit for a laser optic head is disclosed. A protective glass unit for a laser optic head according to an embodiment of the present invention is configured on a lower part of the laser optic head to block a spatter scattering from a welding portion, and comprises a connector ring which is fastened to a lower part of the laser optic head by screws, has one side connected to an air supply hose, and has an air supply groove formed on an inner peripheral surface of a lower part to be connected to the air supply hose, a round glass frame which is arranged on a stepped surface formed on a lower part of inside of the connector ring, has an air connection groove formed on an outer peripheral surface to correspond to the air supply groove, and has a plurality of air spraying holes formed therein to connect the air connection groove with a lower surface, a round protective glass which is fitted to inside the glass frame, and a magnetic pad which is bonded to an upper surface of the glass frame to attach the glass frame with the protective glass to the stepped surface of the connector ring using magnetic force. |
