1. Glasses frame (rim)
The eyeglass frame is a very important part, which is prepared by cold-drawn or cold-rolled wire. The eyeglass frame has a strong timeliness and should be very fashionable. Therefore, there are many types of glasses, its processing and manufacturing is a fine craftsmanship.
The outline of the lens is a rectangular ellipse, ensuring its prototype is the primary task of the spectacle frame. The outline of the frame should be highly consistent, and the error between batches should be within the range specified by the standard. The bending performance of the frame material, especially the homogeneity are strict requirements. The mirror frame is automatically processed by a 3D CNC bending machine. The bending angle piece of the lens is also a key part. When installing the lens, loosen the small screw, and then tighten the small screw after fixing the lens. The spot welding machine is used for brazing, and the electrodes are located above and below the weldment, and are protected by argon arc to prevent oxidation.
2. Glasses legs
The temple is a part hanging on the ear. It is elastic and should not be deformed when wearing it. The fit to the face should be comfortable, neither loose nor tight. It needs to be fine-tuned, and the surface is beautiful and elegant. The preparation process is die forging, stamping, polishing, bending, welding hinge (folding), and cutting.
Die forging is a process in which the cross section of the wire is changed in the length direction of the wire to make it conform to the designed section of the sample block. It uses a multi-head die forging machine or a computer numerical control (CNC) continuous die forging process; stamping is the use of upper and lower dies. For the semi-finished products of die forging, the designed pattern is punched on the temples on the punching machine; the light gathering is to make the surface of the temples bright on the automatic polishing machine; the bending process is to braze the bending angle piece to the mirror frame on the small punching machine. Parts link the frame and the temples; the cutting and separation process is to separate the temples and hinges (folding) that have become one, so that they can be folded freely, and this separation work is carried out on a special milling machine.
3. Nose stand
The clip nose frame is a part that connects two frames. It is punched and machined by wire on the die. Both ends should match the curvature of the frame, and then spot welded. The material is required to have sufficient strength and not easily deformed when worn; Folding (hinge) is a key part to ensure the folding of the temples, spot welding on the temples or the frame, requires high machinability and wear resistance of the material; the bending angle piece is a small part, precision cutting Machined, using the same material as the hinge; the nose plate is the part that supports the frame to be clamped on the nose, and can be made of titanium with good tensile processing performance and bending performance.