ACCURACY COMPENSATION SYSTEM, METHOD, AND DEVICE

摘要

A method for applying accuracy compensation to a rotating measuring machine, a rotatable angular range of the machine is divided into sub-ranges. Each of the sub-ranges is selected, and the rotating measuring machine is rotated to an angle within the selected sub-range. After rotating, images of a working platform of the rotating measuring machine are captured to generate a point cloud. An initial plane is fitted according to the point cloud, and then an actual plane of the working platform is computed according to the initial plane, by iteration. An ideal plane of the working platform is obtained in CAD models of the rotating measuring machine, to compute a deviation angle between vectors of the actual plane and the ideal plane. When the deviation angle is less than a predetermined angle, the selected sub-range and the deviation angle are recorded into a form of a compensation report.

主权项

1. An accuracy compensation method for a rotating measuring machine being executed by at least one control device of a computing device, the method comprising:
dividing a rotatable angular range of the rotating measuring machine into a plurality of sub-ranges; selecting one of the plurality of sub-ranges and rotating the rotating measuring machine to an angle within the selected sub-range; capturing an image of a working platform of the rotating measuring machine within the selected sub-range; generating a point cloud representing shape and dimensions of the working platform for the captured image; fitting an initial plane of the working platform according to the generated point cloud; computing an actual plane of the working platform by iteration from the initial plane; comparing data of the actual plane to stored data of an ideal plane of the working platform, the stored data of the ideal plane being generated from a CAD model of the rotating measuring machine; computing a deviation angle between the actual plane and the ideal plane; and outputting the deviation angle to a display device of the computing device.