Forming method for continuous outer arc face of display panel
A display panel and forming method technology, which is applied to machine tools, grinding machines, metal processing equipment, etc., which are suitable for grinding the edge of workpieces, can solve the problems of streamlined processing methods such as limited processing efficiency, and achieve the effect of improving processing efficiency
Inactive Publication Date: 2017-09-15
LENS TECH CHANGSHA
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Problems solved by technology
[0005] However, the processing efficiency of the streamlined processing method is limited, so a molding method with higher processing efficiency for the outer arc surface of the display panel is needed in this field
Method used
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Embodiment 1
[0029] Embodiment 1 uses the same emery wheel rod as comparative example 1, but its processing method is different, specifically see Figure 5 . Figure 5 Shows the schematic diagram of the CNC machining track in the present invention (the front view angle of the display panel), wherein the arrow near the knife-down point 31 indicates the direction of the knife-down in the present invention, and the arrow near the knife-retraction point 32 represents the knife-retraction in the present invention direction. In the present invention, the positions of the knife-down point and the knife-retraction point are different, and the knife-retraction point is at the endpoint of the contour line, and the knife is retracted in the same direction as the contour line. The knife-down point is preferably on the contour line before the knife-retracting point. When the knife is down, the depth of the knife-down is controlled to be 1 / 4 to 2 / 3 of the cutting removal amount, and the entire target c...
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The invention provides a forming method for a continuous outer arc face of a display panel. The panel is a glass panel or a sapphire panel. The forming method includes the steps that CNC is combined with a grinding wheel bar for conducting machining forming on the outer arc face of the display panel, the grinding wheel bar includes an outer curved surface matched with the continuous outer arc face in size so that one-time forming can be conducted on the display panel through the grinding wheel bar, and the continuous outer arc face of the display panel can be obtained; and the cutting manner in the one-time forming process is a spiral oblique cutting manner, the removal amount during cutting is smaller than the target removal amount of the outer arc face, and the cutting stopping direction is the same as the length direction of the side wall of one side straight edge of the display panel. By means of the method, t tool feeding and discharging points are completely free of no tool marks after one-time machining forming, and the display panel with the qualified appearance is obtained. In addition, by means of the one-time forming method, the machining efficiency of the one-time forming method is improved by 15% or higher than that of a streamline method.
Description
technical field [0001] The invention relates to the field of glass processing, in particular to a method for forming a continuous outer arc surface of a display panel. Background technique [0002] Electronic product screens with a 2.5D curved surface generally require that the shape of the screen cannot be seen when the naked eye is viewed with reflection, which requires that no knife marks be produced during the shape forming process. In the prior art, CNC and cylindrical grinding wheel rods are generally used for streamline processing, and the grinding wheel rods are removed little by little until the CNC carries the grinding wheel rods along the outer contour of the panel for several weeks to form it, but the processing efficiency of this method is not high. [0003] Specifically, the display panel 1 to be processed is a rectangular display panel, and its target shape is figure 1 combine figure 2 , Figure 4 or Figure 5 shown. The total thickness of the display pa...
Claims
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IPC IPC(8): B24B9/08B24B9/16
CPCB24B9/08B24B9/16
Inventor 周群飞饶桥兵张峰
Owner LENS TECH CHANGSHA