| 摘要 |
The present invention relates to a multiple pneumatic jig or machining a multiple graphite forming fixture for manufacturing a curved glass used for a curved smartphone or a wearable device. The multiple pneumatic jig comprises: a vacuum absorption block having a larger upper surface than an outer circumferential portion of a graphite processed object to be machined and having at least two recessed spaces receiving a lower protrusion of the graphite processed object to be machined in the center thereof and having a center separation surface between the recessed spaces and wherein vacuum passages communicating each other in a predetermined width and depth are respectively formed in a wall edge of each recessed space; and a connection device coupled and fixated to one side surface of the vacuum absorption block to be communicated with each vacuum passage of the recessed space to be connected with an external vacuum generation device. According to the present invention, a setting time for installing the graphite processed object to be machined in the pneumatic jig is significantly reduced to improve machining productivity since the graphite processed object to be machined for a multiple graphite forming fixture is easily absorbed and fixated on the multiple pneumatic jig with negative pressure. |
