Thin-walled pipe fitting interference fit guiding positioning assembly device and assembly method thereof
A technology of interference fit and guide positioning, which is applied to workpiece clamping devices, manufacturing tools, hand-held tools, etc., can solve the problems of uncontrollable assembly process, large length and diameter of thin-walled parts, and low assembly efficiency, so as to ensure the components The effect of assembly quality requirements, product performance requirements, and high pass rate
Inactive Publication Date: 2019-09-06
MATERIAL INST OF CHINA ACADEMY OF ENG PHYSICS
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Problems solved by technology
[0005] The purpose of the present invention is: when carrying out interference fit assembly for thin-walled parts of dissimilar materials, manual adjustment and dialing are usually used for alignment. Due to the large length-diameter ratio and poor rigidity of the thin-walled parts, it is very easy to appear in the assembly process. Due to the large degree of freedom in the pressing direction of the inner pipe fittings, the parts are deformed and scrapped, the assembly process is uncontrollable, and the assembly efficiency is low. An interference fit guide positioning assembly device and an assembly method for thin-walled pipe fittings are provided.
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Embodiment 1
[0058] As shown in the figure, the thin-walled pipe fitting interference fit guide positioning assembly device includes a base, a backing plate, and a guide piston. Wherein, the backing plate is arranged on the base, and the backing plate is provided with a through hole matched with the guide piston, and the guide piston can pass through the through hole on the backing plate.
[0059] Among them, the base is provided with a hollow cavity with an opening at one end and communicated with the through hole on the backing plate, a gas pipeline, and a gas switching unit that can realize the opening and closing of the gas pipeline. The hollow cavity is matched with the guide piston and guided The piston can move relative to the side wall of the hollow cavity, and a sealed cavity is formed between the guide piston and the hollow cavity. The gas pipeline communicates with the sealed cavity. The opening and closing of the pipeline further enables the gas in the sealed cavity to be disch...
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The invention discloses an assembling device and method for guiding and positioning thin-wall pipe fittings in interference fit, and aims at solving the problems of part deformation and scrap, uncontrollable assembling process and low assembling efficiency caused by the reasons that the thin-wall pipe fittings are relatively high in long diameter and relatively bad in rigidity, and the inner pipefitting pressing directions are high in degree of freedom in the assembling process as manners of manual adjustment and meter alignment are commonly adopted when interference fit assembly is carried out on dissimilar material thin-wall pipe fittings. In order to solve the guiding and positioning problems in the interference fit assembling process of the dissimilar material thin-wall pipe fittings,the invention put forwards an assembling method for guiding and positioning the dissimilar material thin-wall pipe fittings in interference fit, and researches an assembling device for r guiding andpositioning the dissimilar material thin-wall pipe fittings in interference fit. According to the device and method, the prepared components are stable and reliably in quality, good in consistency andhigh in yield; and meanwhile, the clamping is simple and flexible, the dismounting is convenient and rapid, so that the assembling period can be effectively shortened, the production efficiency can be improved and an unexceptionable effect can be provided.
Description
technical field [0001] The invention relates to the field of precision instrument manufacturing, especially the technical fields of weapon manufacturing, aerospace and shipbuilding, and specifically relates to an interference fit guide positioning assembly device and an assembly method for thin-walled pipe fittings. The invention can be used for the assembly and positioning of the interference fit of thin-walled tubes of dissimilar materials, and has important practical value for weapon manufacturing, aerospace and shipbuilding industries, and the like. Background technique [0002] Thin-walled parts are widely used in weapon manufacturing, aerospace, shipbuilding, etc., and the assembly quality of dissimilar material thin-walled parts, especially the assembly quality of interference fit, is one of the key points of the quality of weaponry equipment manufacturing. At present, the assembly of the interference fit of thin-walled parts of dissimilar materials is based on the lo...
Claims
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IPC IPC(8): B25B11/02B25B27/02
Inventor 孙志建李建军王亚飞薛洪林潘伟光罗吉淑
Owner MATERIAL INST OF CHINA ACADEMY OF ENG PHYSICS