Coordinate measuring machine blade clamping unit and modular measuring clamp

Abstract

The invention provides a coordinate measuring machine blade clamping unit and a modular measuring clamp. The coordinate measuring machine blade clamping unit and the modular measuring clamp are efficient and reliable, high in precision, strong in universality and beneficial to modular production. The clamping unit comprises a supporting seat, a locating block arranged on the supporting seat, guide rails, a fast clamp fixing seat and a fast clamp arranged on the fast clamp fixing seat, a clamping block is arranged on the sliding portions of the guide rails, and the clamping end of the fast clamp faces the rear end of the clamping block. The jaw of the clamping unit achieves modularization, and is composed of two parts, namely, the locating block and the clamping block, the locating block is a static part, is precisely located and fixedly arranged on a base and is used for locating a workpiece, the clamping block slides along with the sliding portions of the guide rails, force is applied through the fast clamp, the clamping block presses the workpiece, therefore, clamping reliability is guaranteed, measuring precision is guarantee, and measuring efficiency is improved.

Description

technical field [0001] The invention relates to the technical field of engine blade measurement, in particular to a fixture for blade measurement. Background technique [0002] Jet engines are increasingly being used in various fields. As a key part of the engine, blades are becoming more and more important to improve their production efficiency and ensure their processing quality. Blade detection is an important means to ensure the quality of blade manufacturing. The three-coordinate measuring machine has been introduced into the jet engine industry for many years. The blade detection of the jet engine is mainly carried out on the three-coordinate measuring machine at present, and the clamping and positioning of the blade affects its The key factor of detection accuracy, therefore, the three-coordinate measuring machine fixture is particularly important. [0003] In the prior art, most of the blades are directly clamped by vise, which is a commonly used clamping tool and ...

AI Technical Summary

Problems solved by technology

[0003] In the prior art, most of the blades are directly clamped by vise, which is a commonly used clamping tool and has good versatility, but the vise does not have an accurate positioning mechanism and cannot meet the repeatability requirements for clamping the workpiece; the operability of the vise Not good, it takes time and effort to clamp the blades; in addition, the vise is bulky, heavy, and inconvenient to operate

Obviously, the vise cannot meet the high requirements of the measuring machine for accuracy and efficiency

[0004] In the measurement industry, there are also special fixtures for certain blades. This kind of fixture can improve the clamping accuracy and efficiency, but it cannot adapt to the clamping of other types of blades.

As we all know, if an engine has multiple types of blades, it is necessary to equip each blade with a set of fixtures, which is costly and easy to cause waste of resources

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