Restructurable joint arm type coordinate measurer

Abstract

The invention discloses a restructurable joint arm type coordinate measurer. A pedestal is connected with one end of a pedestal measuring arm through a magnetic joint; turning joints and swinging joints are connected through locking notches and locking convex openings and are locked through locking rings; the turning joints and the pedestal measuring arm or the turning joints are connected through the locking notches and the locking convex openings and are locked through the locking rings; the swinging joints and non-pedestal measuring arms are connected through the locking notches and the locking convex openings and are locked through the locking rings; and the turning joints and the non-pedestal measuring arms are connected through the locking notches and the locking convex openings and are locked through the locking rings. When the measurer is required, types and numbers of the turning joints, the swinging joints and the measuring arms required can be determined according to spatial degrees of freedom and a measurement range required by a measurement task; corresponding parts are selected and are connected into the complete coordinate measurer through connecting joints; and in the measurement process, the degrees of freedom and measurement space size of the measurer can be instantly changed through the removal or addition of each part. The measurer can be restructured on the spot according to specific measurement needs and has high measurement task adaptability.

Description

technical field [0001] The invention relates to an articulated arm type coordinate measuring machine, in particular to a reconfigurable articulated arm type coordinate measuring machine. Background technique [0002] Articulated arm type (flexible arm) coordinate measuring machine is a new type of multi-degree-of-freedom non-Cartesian coordinate measuring system. It imitates the structure of human waist joint, shoulder joint, elbow joint and wrist joint, connects a series of rods through rotatable joints, replaces the length measurement datum with the angle measurement datum, and has the advantages of simple mechanical structure, small size and light weight. , Large measuring range, flexible and convenient, low cost and can move the measuring machine to the site for measurement and so on. With its unique advantages, the articulated arm CMM is widely used in product quality inspection, reverse engineering data acquisition, large-size workpiece assembly and positioning and ot...

AI Technical Summary

Problems solved by technology

[0005] ① The use of multiple different types of measuring machines will greatly increase the cost of measurement, and the use of multiple models will make the measurement process and measurement data processing more complicated;

[0006] ②Multi-DOF and boom length measuring machine can improve the measurable range of the measuring machine, but when the size of the measured part is smaller than the measuring machine, not only the measuring range is wasted, but more importantly, the measuring accuracy is lost

[0007] (2) It is impossible to realize the customization of individual demand measuring machines

For customers with special measurement needs, it may not be possible to provide suitable products, or it may take a long time and a high price to customize

[0008] (3) The reusability and shareability of components is poor, and the cost of product upgrades is high

For the whole machine integrated model, when some of the upper parts fail, the rest of the parts may still work normally, but due to the limitation of its integrated structure, the normal working parts cannot be reused

In addition, due to the limitation of the integrated model of the whole machine, there is no component sharing between customers

In addition, if the customer needs to upgrade the measuring machine, the update of the parts to be upgraded cannot be realized, but the whole machine needs to be rebuilt, and the upgrade cost is high

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