Substrate handling robot

Abstract

The invention provides a base plate carrying manipulator. The base plate carrying manipulator comprises a bearing arm and a rolling mechanism arranged on the bearing arm and located on the edge of thefirst end of the bearing arm; the rolling mechanism comprises an installing base, a rolling wheel, a rocking rod and an elastic piece; the installing base is arranged on the bearing arm; the rockingrod is obliquely arranged relative to the horizontal plane in the direction close to the second end of the bearing arm, and the end, close to the first end of the bearing arm, of the rocking rod is connected with the installing base; the end, close to the second end of the bearing arm, of the rocking rod is connected with the rolling wheel; a supporting point is arranged between two end points ofthe rocking rod; the two ends of the elastic piece are connected with the supporting point and the installing base correspondingly; the rolling wheel can rotate around the center axis of the rolling wheel; and when a base plate is placed on the rolling wheel, the elastic piece is made pressed downwards due to the gravity of the base plate, then the rocking rod and the rolling wheel are driven to swing downwards, meanwhile the rolling wheel rotates, the base plate is driven to move in the direction close to the second end of the bearing arm, it can be prevented that the base plate is stuck, thealignment accuracy of the base plate is improved, and the sheet breaking risk is lowered.

Description

technical field [0001] The invention relates to the field of display technology, in particular to a substrate handling robot. Background technique [0002] With the development of display technology, liquid crystal display (Liquid Crystal Display, LCD) and organic light emitting diode display (Organic Light Emitting Diode, OLED) and other flat display devices have high image quality, power saving, thin body and wide application range, etc. Advantages, and are widely used in various consumer electronics products such as mobile phones, televisions, personal digital assistants, digital cameras, notebook computers, desktop computers, etc., and become the mainstream of display devices. [0003] Most of the liquid crystal displays currently on the market are backlight liquid crystal displays, which include a liquid crystal display panel and a backlight module. The working principle of the liquid crystal display panel is to pour liquid crystal molecules between the thin film trans...

AI Technical Summary

Problems solved by technology

At present, in the production process of liquid crystal displays, glass substrates are transported by substrate handling robots, such as figure 1 As shown, the existing substrate handling robot includes: a carrying arm 1 and a rolling mechanism 2 disposed on the carrying arm 1 and located at the first end edge of the carrying arm 1; the rolling mechanism 2 includes a mounting seat 201 and The roller 202 provided on the mounting seat 201 can rotate around its central axis. When the substrate is placed on the roller 202, if the contact point between the substrate 101 and the roller 202 is not in the vertical direction of the roller 202 On the straight center line, the gravity of the substrate 101 can generate component force to promote the rotation of the roller 202, thereby pushing the substrate 101 away from the roller 202 and falling onto the carrying arm 1, but when the contact point between the substrate 101 and the roller 202 When on the vertical center line of the roller 202, as figure 2 As shown, the gravity Fg of the substrate 101 cannot produce a force component that promotes the rotation of the roller 202, so the substrate 101 will be stuck on the roller 202, and cannot be separated from the roller 202 to move to the carrying arm 1, and the substrate 101 cannot be accurately aligned. , affect the subsequent process, and even lead to fragmentation

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