Small aviation piston engine crankshaft butt joint measuring device

Abstract

The invention discloses a small aviation piston engine crankshaft butt joint measuring device, which is characterized in that a measuring head is arranged on a positioning butt joint tool, so that a measured crankshaft part is accurately positioned before butt joint, a motor drives a right section positioner of the positioning butt joint tool to do translational motion along a sliding guide rail,and a middle section positioner is pushed to complete crankshaft butt joint. Data sampling measurement is continuously carried out on line after butt joint to obtain a required shape and position deviation value, so that whole-process on-line measurement and control of the butt joint part are achieved, and accurate assembly of the crankshaft part is achieved; and the assembling quality and efficiency can be improved. The butt-joint measurement device improves the butt-joint precision through zero calibration of the calibration part, and provides a data basis for improvement and optimization through data analysis of the upper computer. The positioning precision of the measured crankshaft part and the geometric precision of the measured crankshaft part after butt joint are calculated according to the measurement data of the measured crankshaft part before and after butt joint; and meanwhile, related data support is provided for design improvement and fault analysis of the engine.

Description

technical field [0001] The invention relates to the technical field of intelligent assembly of aviation piston engines, in particular to a small-sized aviation piston engine crankshaft docking measurement device. Background technique [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, repe...

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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