Three-station DITO full-automatic testing machine and testing process thereof

Abstract

The invention discloses a three-station DITO full-automatic testing machine and a testing process thereof. The testing machine comprises a feeding part, a testing part and a discharging part. The testing machine disclosed by the invention comprises the following technical steps: product feeding, product taking and product detection, product photographing correction, product function testing, product transferring and defective product screening, product position correcting and discharging, and material tray discharging. According to the testing machine, a plurality of products are loaded in a centralized manner by adopting the material tray, and the loading part and the discharging part are connected to the front end and the back end of the tested part; the material trays of the feeding part and the discharging part are of a circulating flow type structure, meanwhile, the circulating type taking and placing of the products and the material trays are realized, and the material flowing volume is greatly improved through a laminating and conveying mode; and the test part adopts multi-test-station design, the time periods of testing and product taking and placing are effectively utilized, so that uninterrupted lead-out of the test products is realized, and the screen testing efficiency is greatly improved; and single-piece detection, defective product scanning by two-dimensional codes and the like are integrated to realize real-time screening of defective products.

Description

technical field [0001] The invention relates to the field of mechanical automation, in particular to a three-station DITO full-automatic testing machine and a testing process thereof. Background technique [0002] Capacitive touch screen technology uses the current induction of the human body to work. The capacitive touch screen (TPS) is a four-layer composite glass screen. The inner surface and the interlayer of the glass screen are coated with a layer of ITO, and the outermost layer is a thin layer of silica glass protective layer. The interlayer ITO coating is used as the working surface. Four Four electrodes are drawn from the corners, and the inner layer of ITO is a shielding layer to ensure a good working environment. When a finger touches the metal layer, due to the electric field of the human body, a coupling capacitance is formed between the user and the surface of the touch screen. For high-frequency currents, the capacitance is a direct conductor, so the finger a...

AI Technical Summary

Problems solved by technology

In the manufacturing process of the capacitive touch screen, its functional parameters need to be tested. The general test device is to connect the Dito Sensor of TPS to the test circuit of the test device, and test the screen parameters through the test device; the efficiency of the TPS screen test process is a constraint The key factor of the production capacity of the whole line of TPS screen production, with the sharp increase in market demand for TPS screens, this defect is more prominent; the traditional test device is mostly a single test, that is, the screen is transferred to the test screen manually or mechanically. After the device is installed, the single-chip screen is tested by the test device; when other materials other than the robot screen are used to pick and place materials, in order to improve efficiency, the conveyor belt is often used to transport the screen forward, and the robot will move the screen between the conveyor belt and the test device. However, the surface of the screen has high requirements. In order to ensure the surface finish and avoid scratches, the screen cannot be transported directly through the conveyor belt. Since the conveyor belt moves continuously, the test and manipulator pick and place The product takes time, the jig cannot stay on the flowing conveyor to put the screen in, so the screen cannot be transported through the conveyor with the jig

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