Synchronized process of flow debugging and aperture machining
A flow test and hole diameter technology, which is applied in the field of flow debugging and hole diameter processing synchronous technology, can solve the problems of long nozzle hole processing cycle, low production efficiency, high production cost, etc., so as to avoid batch out-of-tolerance or scrapping, improve the pass rate, Guarantee the effect of performance
Active Publication Date: 2015-05-06
CHINA HANGFA SOUTH IND CO LTD
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Problems solved by technology
[0004] The purpose of the present invention is to provide a synchronous process of flow adjustment and aperture processing to solve the technical problems of long processing cycle, high scrap rate, high production cost and low production efficiency in the prior art of processing nozzle holes
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Embodiment Construction
[0012] The present invention provides a process for synchronous flow adjustment and aperture processing, which is used for processing nozzle holes of a batch of injection oil passages, fuel nozzles, lubricating oil nozzles and other workpieces, which includes the following steps:
[0013] Step S1: Pre-drill a through hole in the nozzle hole of the first workpiece, and record the aperture value r of the pre-drilled through hole 1 ;
[0014] The nozzle hole of the workpiece is processed by EDM or mechanical method, and then the diameter r of the processed nozzle hole is measured with a measuring tool 1 , The measuring tool of the present invention is a high-precision measuring rod or a plug gauge.
[0015] Step S2: For aperture r 1 Carry out the flow test and record the flow value Q of the flow test 1 ;
[0016] Step S3: According to the required aperture r, the pre-drilled aperture r 1 Reaming is corrected to the qualified aperture r; Step S3 also includes two sub-steps S3...
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The invention relates to a synchronized process of flow debugging and aperture machining. The synchronized process of flow debugging and aperture machining is used for machining a batch of nozzle holes. The synchronized process of flow debugging and aperture machining comprises the following steps: step (S) 1, preboring a through hole in a nozzle hole of a first workpiece, and recording an aperture value of a prebored through hole as r1; S2, flow testing on the aperture r1, and recording a flow tested flow value as Q1; S3, calculating actual required aperture r, and reaming and amending the prebored aperture r1 to qualified required aperture r; S4, machine-shaping nozzle holes of the rest workpieces at one time according to the value of the required aperture r. The synchronized process of flow debugging and aperture machining has the advantages of greatly improving a flow test qualified rate, improving the nozzle flow test qualified rate by 30%-50%, effectively ensuring usability of an engine, and avoiding out-of-tolerance or abandonment in batches of parts. In actual use, machined qualified rate of batched parts nozzle holes is higher than 90%.
Description
technical field [0001] The invention relates to the field of processing technology of injection oil passages, fuel nozzles and lubricating oil nozzles of aero-engines, and in particular relates to a simultaneous flow adjustment and aperture processing technology. Background technique [0002] The injection oil passage and fuel nozzle are the main components of the combustion chamber of the aero-engine. The fuel enters and exits through the nozzle hole, and the size of the fuel flow directly affects the performance of the engine. Methods Process the nozzle hole. In order to ensure that the processed nozzle hole meets the requirements of use, it is necessary to conduct a flow test on the processed nozzle hole. [0003] In the prior art, it is difficult for a batch of parts to be formed by EDM or machining once to meet the requirements of use. For example, when the flow test is too large, the processed nozzle holes are generally directly scrapped; when the flow test is too smal...
Claims
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IPC IPC(8): B23P17/00
Inventor 黄袖清陈艳芳郑学著傅名伟徐舟
Owner CHINA HANGFA SOUTH IND CO LTD