A Method for Digitized Angle Determination of Pipeline

Abstract

The invention discloses a method for digitally determining an angular direction of a pipeline. The method comprises the steps that a connector is clamped on a clamp with the indexing function; a matched guide tube is assembled on the connector according to any space angle; a tubular measurer is used for carrying out point collecting on the outer surface of the matched guide tube and the outer surface of the connector, a space data model is obtained through measurement of the tubular measurer, and the space data model is a model with the connector end assumed as the guide tube; data intercepted from UG modeling is used as standard data, data measured from the connector and the matched guide tube is used as correlation data, and therefore simulated data deviation is obtained; then angular deviation is calculated; measurement and adjustment are performed again after the angle is adjusted, and the assembling angle direction is marked on the connector and the matched guide tube till the measurement tolerance is within the allowed assembling tolerance range of the connector. The method can directly determine the angular direction of the connector of a part like the guide tube through UG modeling graphs, and is applicable to parts like guide tubes of any tube diameter, so that the parts are machined more easily, conveniently and efficiently with low cost.

Description

technical field [0001] The invention relates to the technical field of manufacturing catheter parts, in particular to a method for digitally determining the angle of pipelines. Background technique [0002] There are a large number of duct parts on the aero-engine, and there are many part numbers involved, but most of the same part number only uses one piece. Therefore, the processing characteristics of the same type of duct parts are "multiple specifications and small batches". Due to their functional characteristics, different part numbers have complex shapes and structures, different thicknesses, and different lengths. There are no two parts with the same tube shape on the same engine. Due to the corresponding assembly relationship of each tube, its tube There are differences in the direction of the pipe type and the angular direction of the joint space. Therefore, for a long time, only the matching relationship has been specified in the design drawings of the engine duct...

AI Technical Summary

Problems solved by technology

[0006] (2) Long cycle: due to its harsh processing conditions, the processing of conduit parts must be carried out after the complete machine has been basically assembled. Therefore, nearly 1 / 2 of the estimated processing cycle of conduit parts wasted waiting

There is too much waiting and repetition in the whole processing process, and the cycle is long

[0007] (3) Poor processing stability and consistency: Due to the limitation of processing conditions, the quality of sampling mainly depends on the following two points: ①The quality of the whole machine assembly used for sampling; ②The operation skills of the fitter who operates the sampling

If any point goes wrong, it will lead to repeated calibration and repair of the sample

Furthermore, since the entire sampling process is manual, there is no corresponding data support, the randomness is too large, and the reproducibility and consistency cannot be guaranteed. The above problems are hidden dangers for the later use of catheter parts.

[0008] With the rapid development of UG modeling technology in the field of aviation manufacturing and the gradual improvement of the processing capabilities of production equipment, only with the help of UG design drawings of conduit parts, the tube shape direction of conduit parts can be determined, and a single tube can be easily processed. Pipe fittings, but the determination of the angular direction of the matching joints on it can rely on on-site trial assembly and sampling, or use the corresponding assembly fixture to determine, so that the shortcomings in the entire processing process have not been improved due to the easy determination of the direction of the pipe type

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