Crystal grain angle correction method applied to chip separating system

Abstract

The invention relates to a crystal grain angle correction method applied to a chip separating system, which mainly comprises the following steps: judging a deflection angle of target crystal grains; driving a swinging arm of a crystal grain conveying mechanism to rotate 90 degrees minus alpha when the deflection angle alpha of the target crystal grains is a positive number, simultaneously executing the difference-alpha deflection angle position compensation on an arrangement region, and placing the target crystal grains into the arrangement region; driving the swinging arm of the crystal grain conveying mechanism to rotate 90 degrees plus alpha when the deflection angle alpha of the target crystal grains is a negative number, simultaneously executing the multi-alpha deflection angle position compensation on the arrangement region, and placing the target crystal grains into the arrangement region; and driving the swinging arm of the crystal grain conveying mechanism to rotate 90 degrees when the deflection angle alpha of the target crystal grains is zero, and directly placing the target crystal grains into the arrangement region. The invention combines the rotation movement of the crystal grain conveying mechanism and the translational movement of the arrangement region for compensating the angle deflection of the crystal grains, carries out parallel dispatch between the position compensation of a material supply region and the arrangement region, and realizes the automatic correction of the crystal grain angle under the condition of not reducing the conveying speed.

Description

technical field [0001] The invention relates to the field of LED chip sorting, in particular to a crystal grain angle correction method applied to a chip sorting system. Background technique [0002] Usually, in the sorting process of LED chips, it is required to neatly arrange the crystal grains on the chip film in the form of square sheets according to the type. However, it is difficult to keep all the crystal grains absolutely neatly aligned after the chip film is cut, poured, and expanded. If the position of the grain is only irregular, it can be realized by translation correction, which is relatively easy to realize in terms of motion control; if the grain has an angular deviation, it needs to be realized by rotation correction. Since the correction of any crystal grain needs to rotate the entire chip film, this will cause the positions of all other crystal grains on the chip film to change, which brings great difficulties to the precise positioning of subsequent cryst...

AI Technical Summary

Problems solved by technology

The correction method of this crystal grain angle, because the angle correction of any crystal grain in the feeding area all needs to rotate the whole chip film, causes the position of all other crystal grains on this chip film to change, thus gives the follow-up crystal grain Accurate positioning brings great difficulties, and also seriously affects the speed of grain angle correction, which also reduces the chip sorting speed as a whole

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