CMM Fixture for Titanium Alloy Reinforced Edge at Leading Edge of Composite Blade

Abstract

The invention discloses a three-coordinate measuring clamp for a titanium alloy reinforcing side in the front edge of a composite-material blade. The clamp comprises a cuboid pedestal, a positioning member for clamping and fixing the reinforcing side, a first support column, a positioning pin and a second support column are arranged on the pedestal successively from the wider end of the reinforcing side along the direction of the reinforcing side, the positioning member comprises a positioning block and an auxiliary positioning block tightly fit to the positioning block, and the normal direction of a plane where the auxiliary positioning block is cooperated with the positioning block is vertical to normal direction of the upper surface of the pedestal, and is in parallel with the normal direction of the end surface of the wider end of the reinforcing end; and the outer periphery of the positioning pin is tangent with any point of a protruded part of an external profile of the bottom ofthe reinforcing side. The problem that the titanium alloy reinforcing side in the front edge of the composite-material blade cannot be clamped in the prior art is solved.

Description

【Technical field】 [0001] The invention belongs to the technical field of mechanical manufacturing, and in particular relates to a fixture for three-coordinate measurement of a titanium alloy reinforced edge at the leading edge of a composite blade. 【Background technique】 [0002] At present, the development of large aircraft has been highly valued by various countries, and the engine technology required by it has become an important manifestation of the national technology and industrial level. As the power plant of large aircraft, turbofan engine with high bypass ratio is one of the core technologies of large aircraft, and to a certain extent determines whether large aircraft can be successfully developed. Under the premise of not changing the engine layout, the application of new materials and innovative structural solutions are important technical means to achieve the advanced nature of the engine. Composite materials have excellent mechanical properties that are incompa...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a three-coordinate measurement fixture for the titanium alloy reinforced edge of the leading edge of the composite blade to solve the problem that the titanium alloy reinforced edge of the composite blade leading edge cannot be clamped in the above-mentioned prior art

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