The invention provides an error modeling method and
system based on a
CCD camera alignment
assembly system, and relates to the technical field of high-precision electronic manufacturing
assembly, and the method comprises the steps: obtaining internal parameters and external parameters of a
CCD camera through calibration, building a camera and mechanical coordinate
system conversion relation, and constructing a collaborative
calibration error tree; controlling the motion platform to move, synchronously acquiring
pose and environment temperature data, decomposing vibration and
thermal deformation error components through time-
frequency analysis, and superposing the vibration and
thermal deformation error components into dynamic errors; extracting a positioning error based on the
pose data, and constructing a mechanical-
optical coupling error spectrum in combination with the
distortion parameters; and finally, fusing the collaborative
calibration error tree, the dynamic error and the
coupling error atlas to generate a global error atlas, and completing alignment
assembly system error modeling based on the
CCD camera. According to the invention, the precision and applicability of error modeling are improved.