A small aviation piston engine crankshaft docking measurement device

Abstract

The invention discloses a small aero-piston engine crankshaft docking measuring device. By arranging a measuring head on a positioning and docking tool, the measured crankshaft components can be accurately positioned before their butt joints. The motor drives the right segment locator of the positioning and docking tool along a sliding guide rail. Translate the movement and push the mid-section positioner to complete the crankshaft docking. After docking, continue to perform data sampling and measurement online to obtain the required shape and position deviation value, realize the online measurement and control of the whole process of the docked components, and realize the precise assembly of crankshaft components; and can improve the quality and efficiency of assembly. The docking measurement device improves its docking accuracy by calibrating the zero position of the calibration part, and provides data basis for improvement and optimization through the data analysis of the host computer; through the measurement data of the tested crankshaft components before and after the docking, calculates the measured crankshaft components. Positioning accuracy and geometric accuracy after docking; at the same time, it provides relevant data support for engine design improvement and failure analysis.

Description

technical field [0001] The invention relates to the technical field of intelligent assembly of aviation piston engines, in particular to a small aviation piston engine crankshaft docking measuring device. Background technique [0002] In order to reduce weight and save space, small piston aero-engines generally use a split crankshaft structure, which increases the difficulty of crankshaft assembly, and puts forward higher technical requirements for the accuracy and reliability of assembly; process control is difficult, After the butted crankshaft is released from the tooling force, there will generally be slight deformation, which affects the reliability, stability and life of the engine. The traditional butt assembly of crankshaft components cannot be quantitatively controlled and adjusted before docking. Manual manual measurement and manual correction are used for deviation measurement after docking. There are phenomena such as cumbersome measurement process, repeated cali...

AI Technical Summary

Problems solved by technology

[0002] In order to reduce weight and save space, small piston aero-engines generally adopt a split crankshaft structure, which increases the difficulty of crankshaft assembly and puts forward higher technical requirements for the accuracy and reliability of assembly; process control is difficult, After the butted crankshaft is released from the tooling, a slight deformation will generally occur, which will affect the reliability, stability and life of the engine

The traditional docking assembly of crankshaft components cannot be quantitatively controlled and adjusted before the docking. After the docking, the deviation measurement adopts manual measurement and manual correction. There are phenomena such as cumbersome measurement process, repeated calibration process, low efficiency, and the influence of individual technical differences. It does not meet the requirements of assembly technology. The development demand for intelligent transformation is also not conducive to the cost control of production, and there is a problem that only local feature points are measured and corrected, and it is difficult to meet the docking accuracy requirements, which affects the final product assembly accuracy

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