Undercarriage assembling and detecting integrated equipment

Abstract

The invention discloses undercarriage assembling and detecting integrated equipment. The equipment comprises a mechanical system, a measuring system and a control system; the mechanical system comprises a bottom plate, a lower workbench, a stand column, a sliding block, an upper workbench and a quick-change positioning block; the lower workbench is slidably installed on the bottom plate; the standcolumn is fixedly installed on the bottom plate; the sliding block is connected to the front face of the stand column through a lead screw structure; the upper workbench is fixedly connected with thesliding block; and the quick-change positioning block is arranged on the lower workbench; the measuring system comprises a tension and pressure sensor, a displacement sensor, a grating ruler and a data processor; the tension and pressure sensor is arranged on the sliding block or the upper workbench; the displacement sensor is arranged on the sliding block or the upper workbench; the grating ruler is arranged on the stand column and can accurately detect the vertical moving position of the sliding block. Data acquired by the tension and pressure sensor, the displacement sensor and the gratingruler are uploaded to the data processor for data processing; the control system comprises a motor, a motion controller, a PLC and an upper computer which are electrically connected in sequence.

Description

technical field [0001] The invention relates to the field of landing gear struts, in particular to an integrated equipment for assembling and testing landing gear. Background technique [0002] Due to the compact and complex structure of aircraft landing gear pillars, it is difficult to assemble them by putting tubes, sleeves, sealing rings, etc. inside the deep holes to form a multi-layer structure. The buffer assembly process is usually divided into three stages: initial assembly, hard assembly and test. The initial assembly process roughly includes: subassembly (without installing seals) - trial assembly - detection size - repair adjustment - motion detection - disassembly and cleaning; The assembly process generally includes: seal assembly - subsection assembly - cylinder rod alignment assembly - size inspection; the test mainly includes: air tightness inspection - oil and gas filling - running-in test - high and low temperature test - static pressure curve test, etc. ...

AI Technical Summary

Problems solved by technology

[0003] At present, the landing gear manufacturing industry still mainly relies on skilled workers to use simple fixtures and hand tools for assembly. Usually, one of the two main structural parts (outer cylinder or piston rod) of the buffer is fixed on the fixture. The assembly is carried out by manual lifting or crane assistance, and after assembly, the whole is transported to the special inspection fixture to inspect the technical indicators such as stroke, length, angle, etc. The inspection process also mainly relies on manual push and pull of the piston rod, and is measured by ordinary measuring tools and digitalized. The level is low, the workload of repeated handling in the work is heavy, and the labor intensity is high; during assembly, it is impossible to accurately judge whether the seal is intact after it is put into the cylinder, and only rely on the experience and feeling of the operator to judge, often resulting in subsequent airtightness testing. defect delivery

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