Calibration device, calibration system, and calibration method

Abstract

A correction device comprises a shell, a light source, a first prism, a second prism, a third prism and an imaging module, wherein the light source, the first prism, the second prism and the third prism are contained in the shell, and the shell is provided with a pin moving space for a dispensing pin to move or rotate. The light source is used for emitting parallel light, the first prism faces the light source, and the second prism faces the first prism and rotates by 90 degrees relative to the first prism. The third prism and the second prism are oppositely arranged in parallel, the imaging module is connected to the shell and opposite to the third prism so as to obtain an image of the dispensing needle, the image comprises a first image and a second image of the dispensing needle, the first image is a projection of the dispensing needle on a first reflecting surface, and the second image is a projection of the dispensing needle on a second reflecting surface. The correction device provided by the invention is beneficial to realizing rapid and accurate position correction of the dispensing needle. In addition, the invention also provides a correction system and a correction method.

Description

technical field [0001] The present application relates to a calibration device, a calibration system and a calibration method. Background technique [0002] For a dispenser with a needle, the position and height of the needle deviate from the initial preset reference position during each replacement of the needle or the dispensing process, so we need a device that can detect the current position and height of the needle The offset from the reference position, to compensate for the offset of the needle during dispensing. [0003] In general, most of the devices used in the dispensing machine use two opposite-beam photoelectric sensors to be installed vertically to detect the X / Y / The position value in the three directions of Z, the offset from the initial preset position value, but this method requires the moving speed of the needle to be very slow, so the detection time is relatively long, and the detection accuracy is related to the moving speed of the needle and the light...

AI Technical Summary

Problems solved by technology

[0003] In general, most of the devices used in the dispensing machine use two opposite-beam photoelectric sensors to be installed vertically to detect the X / Y / The position value in the three directions of Z, the offset from the initial preset position value, but this method requires the moving speed of the needle to be very slow, so the detection time is relatively long, and the detection accuracy is related to the moving speed of the needle and the light beam The diameter is related, resulting in poor detection accuracy

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