Large profile automatic measurement assisting device based on laser tracker

Abstract

The invention discloses a large profile automatic measurement assisting device based on a laser tracker. The assisting device mainly comprises a computer, a right-angle three-coordinate servo mechanism and a navigation trolley, wherein a sliding table is arranged on the navigation trolley; the right-angle three-coordinate servo mechanism can move on the sliding table along an X direction; a target is clamped at the tail end of a clamping mechanism; the other end of the clamping mechanism is connected with a right-angle three-coordinate feeding mechanism; the feeding mechanism can move along a Y direction, and can move along a Z direction on a right-angle three-coordinate upright post; a proximity switch is arranged at the joint of the clamping mechanism and the feeding mechanism; during measurement, data measurement is performed by taking a proximity switch signal as a basis for judging the arrival of a target; when a measuring region is not within the travel range of the right-angle three-coordinate servo mechanism, the navigation trolley is automatically controlled to move according to a limit switch signal in an X-axis direction to drive a measuring device to reach a next measuring region. According to the device, full-automatic, high-accuracy and high-efficiency continuous measurement of large profiles on a plurality of positions can be realized.

Description

[0001] technical field [0002] The invention relates to a large surface three-dimensional measurement technology, in particular to an automatic measurement auxiliary device for a multi-station large surface based on a laser tracker. Background technique [0003] With the rapid development of modern manufacturing technology, enterprises have put forward higher and higher requirements for product performance, especially for large and complex curved surfaces, which not only require a short manufacturing cycle, but also require high manufacturing precision. Therefore, the three-dimensional measurement technology for the surface profile of large surfaces has become one of the research hotspots at home and abroad, and it is widely used in aerospace, automobile, on-line monitoring and machinery manufacturing and other fields. [0004] At present, the equipment generally used for the measurement of large surfaces includes large-scale gantry-type three-coordinate measuring machines,...

AI Technical Summary

Problems solved by technology

[0006]1) The movement control of the lifting mechanism is complicated, and the automatic control of the target movement is not realized, and the measurement workload is heavy during the actual operation

[0007]2) Accurate positioning of the target cannot be achieved, and only manual observation can be used, so the accuracy of target positioning is low

At the same time, there is no limit switch installed, so it is impossible to judge whether the target is in excessive contact with the product

[0008]3) The four-wheel drive trolley does not realize automatic control, and it is impossible to realize the accurate arrival of the trolley to the measurement position and the automatic movement of the measurement mechanism between the two measurement areas

[0009]4) The measuring mechanism is not suitable for automatic measurement of large surfaces

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