With the advent of the 5g era of communication, the demand for 3D hot bending glass has shown explosive growth. Among them, the key hot bending die must become the key device in the production process. The precision and roughness of the die are extremely high, and the parallelism and flatness are required to be within 0.01mm. The processing efficiency and quality need to be improved urgently.

At present,Graphite mouldProcessing technology: 1. Process the back surface on the vice first; 2. Suck the back surface onto the jig to process the front surface; 3. Process the back side of the escape slot on the vice. The existing graphite mold processing technology has defects: 1. It requires more than two operating fixtures, such as vise and suction fixture, and the operation efficiency is low; 2. During air suction processing, the mold is very easy to be scrapped due to the large impact of air pressure fluctuation.

The technical problem to be solved by the utility model is to provide a processing jig for a graphite mold in view of the above existing technology, which is convenient for processing the front and back sides of the graphite mold, fixing the graphite mold, and improving the processing efficiency.

The technical solution of the present application to solve the above technical problems is a processing fixture for graphite molds, comprising a substrate, the front of which is formed with a recessed groove, the groove is matched with the size of the graphite mold to be processed to fully accommodate the graphite mold, the bottom of the groove is processed with a number of suction holes, the positions of the suction holes correspond to the positions of the escape grooves on the back of the graphite mold, and the substrate is internally provided with suction channels, The suction passage connects several suction holes, and the base plate is provided with an exposed air nozzle, which penetrates the suction passage.

Preferably, the edge of the substrate is provided with a movable ejector rod to press the graphite mold tightly in the groove.

Preferably, the ejector rod is a fastening screw, which presses the graphite mold against the peripheral wall of the groove body from the side. The processing of the front face of the graphite mold is not affected.

Compared with the prior art, the utility model has the advantage that it provides a processing jig, which can process the front and back sides of graphite molds, is fixed reliably, helps to improve the processing accuracy, and saves the processing man hours of each set of graphite molds. The structure is simple and convenient for popularization and application.