| CPC B64F 5/10 (2017.01) [B64C 1/06 (2013.01); B64F 5/60 (2017.01); G05B 13/024 (2013.01); G05B 19/418 (2013.01); B64C 1/12 (2013.01)] | 11 Claims |
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1. An aircraft structure assembly jig comprising:
header plates that are, in a state where an aircraft structure is placed on the aircraft structure assembly jig, arranged in a predetermined direction of the aircraft structure, each header plate having such a shape that, in the state where the aircraft structure is placed on the aircraft structure assembly jig, each header plate extends abutting a lower surface or an upper surface of the aircraft structure;
positioners provided on each of the header plates, each positioner including, at a distal end thereof, a receiver that comes into contact with the lower surface of the aircraft structure, each positioner causing the receiver to advance and retract;
circuitry that controls the positioners such that the positioners are drivable independently of each other;
receiver state sensors, each of which detects control data in the state where the aircraft structure is placed on the aircraft structure assembly jig, in which state the lower surface of the aircraft structure is supported by at least receivers, each receiver state sensor detecting, as the control data, a supporting state of a corresponding one of the receivers supporting the lower surface of the aircraft structure, wherein
the circuitry:
compares each of detection values of the detected control data with a preset reference value to determine whether or not an equal support state is being achieved, the equal support state being a state where all the receivers are equally supporting the aircraft structure; and
if it is determined that the equal support state is not being achieved, controls an adjustment-requiring positioner among all the positioners to adjust an advancing/retracting position of the receiver of the adjustment-requiring positioner within a design tolerance,
wherein
each receiver state sensor detects, as the control data, at least one of the following:
a load applied to a corresponding one of the positioners;
an electric current value of a driving motor included in the corresponding positioner; and
an amount of advancing or retracting movement of a support shaft with which the corresponding positioner supports the receiver, and
the circuitry:
compares each of the detection values of the detected control data with the preset reference value to determine whether or not a receiver that is excessively pushing the lower surface of the aircraft structure upward and/or a receiver that is not sufficiently pushing the lower surface of the aircraft structure upward is/are present among the receivers;
an image capturer that captures an image showing the lower surface of the aircraft structure being supported by at least the receivers, wherein the circuitry:
drives the positioners to cause the receivers to advance and/or retract, such that the position of the lower surface of the aircraft structure is adjusted within a design tolerance of the aircraft structure;
then, based on the image captured by the image capturer, determines whether or not there is a gap formed between the aircraft structure and the header plates or the receivers, or determines whether or not the lower surface of the aircraft structure has a preset proper shape; and
if it is determined that there is no gap formed between the aircraft structure and the header plates or the receivers, or that the lower surface of the aircraft structure has the preset proper shape, determines that the aircraft structure is in such a condition that assembling is performable thereon.
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