Door attaching method, and door moving device and self-weight sag measuring device employed therein

Abstract

Provided is a door attaching method enabling highly accurate door assembly. This door attaching method includes: a primary tightening step of using bolts (25) to tighten a hinge (5, 6) to an attachment surface (41, 42) of a vehicle body; a door panel position measuring step of measuring the relative position of a door panel (4) inside an opening portion, with a door (3) in a cantilevered state, and with the hinge (5, 6) in a primarily tightened state; a loosening step of loosening the tightening; a door position correcting step of correcting the position of the door (3) by moving the door (3) within the plane of the attachment surface (41, 42) on the basis of the measurement results obtained in the door panel position measuring step; and a secondary tightening step of re-tightening the hinge (5, 6) to the attachment surface (41, 42). In the sequence of steps comprising the primary tightening step, the door panel position measuring step, the loosening step, the door position correcting step, and the secondary tightening step, the hinge (5, 6) is gripped using a clamp (17, 18) to maintain a state in which the hinge is caused to abut the attachment surface (41, 42).

Description

technical field [0001] The present invention relates to a door installation method for automatically installing a hinged door, a door moving device used therein, and a self-weight sagging measuring device. Background technique [0002] Conventionally, various methods of automatically attaching a vehicle door to a vehicle body have been proposed. For example, in the door mounting method disclosed in Patent Document 1, first, as a preparatory stage, a step of preparing a door hinge having a vehicle body side hinge arm and a door side hinge arm is performed. Next, a process of attaching the door hinge assembly jig having the hinge positioning holding mechanism to the vehicle body is performed. Next, a step of holding the vehicle body side hinge arm by the hinge positioning holding mechanism is performed. [0003] After the above-mentioned preparatory stage, the installation position of the door side hinge arm in the door panel is determined in advance, and in the door tempora...

AI Technical Summary

Problems solved by technology

However, in actual door assembly, variations in component accuracy and assembly errors in the door panels, hinges, and parts of the vehicle body differ from vehicle to vehicle.

Therefore, after the door is installed, the actual inclination due to the weight of the door panel may be different from the initial estimate.

Therefore, there is still room for improvement in assembling the hinged door to the vehicle body with high precision

Images