CN111637816A - Device and method for detecting coloring of conical surface of aircraft engine guide pipe - Google Patents
Device and method for detecting coloring of conical surface of aircraft engine guide pipe Download PDFInfo
- Publication number
- CN111637816A CN111637816A CN202010527428.7A CN202010527428A CN111637816A CN 111637816 A CN111637816 A CN 111637816A CN 202010527428 A CN202010527428 A CN 202010527428A CN 111637816 A CN111637816 A CN 111637816A
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- conical surface
- coloring
- gauge
- detection
- inspection
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
- G01B5/003—Measuring of motor parts
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
- G01B5/02—Measuring arrangements characterised by the use of mechanical techniques for measuring length, width or thickness
- G01B5/025—Measuring of circumference; Measuring length of ring-shaped articles
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
- G01B5/20—Measuring arrangements characterised by the use of mechanical techniques for measuring contours or curvatures
Abstract
The invention discloses a device and a method for detecting coloring of a conical surface of a conduit of an aircraft engine, which comprises a working gauge, a detection conical surface arranged at the front end of the working gauge, a clamping part arranged at the rear end of the working gauge, a detection thread arranged on the working gauge and positioned between the detection conical surface and the clamping part, and a detection gauge matched with the working gauge, wherein the taper of the detection conical surface is the same as that of a part to be detected. The coloring inspection effect and the qualification rate of the pipe end sealing conical surface are ensured, the sealing performance of the catheter component is verified powerfully, and the catheter component has a great use value.
Description
Technical Field
The invention relates to the field of a spacious engine, in particular to a device and a method for detecting coloring of a conical surface of a conduit of an aircraft engine.
Background
The engine ducts are distributed throughout the engine body and transport various fluids, and are called as engine blood vessels. Therefore, the sealing performance of the pipe end is extremely important. After the tube end sealing conical surface is formed, the conical surface is required to be colored and checked, and the conical surface forming quality is verified. The traditional conical surface coloring gauge is in a 74-degree outer conical surface structure, coloring agents are uniformly coated on the outer conical surface, a part and the coloring gauge are held manually, and coloring inspection is carried out on the conical surface according to hand feeling. The method is greatly influenced by human factors. Meanwhile, after the conical surface is formed, trace resilience exists, and the angle of the conical surface of the pipe end and the taper of the coloring gauge cannot be completely attached under the action of relatively small manual holding force, so that the coloring inspection qualification rate of the conical surface of the pipe end is low.
Disclosure of Invention
The invention provides a device and a method for detecting coloring of a conical surface of a duct of an aircraft engine aiming at the defects of the prior art, and the specific technical scheme is as follows:
the utility model provides an aeroengine pipe conical surface detection device that stains, includes the work gauge, sets up the detection conical surface in work gauge front end, sets up the clamping part in work gauge rear end, sets up on the work gauge and lie in the detection screw thread that detects between conical surface and the clamping part and with the inspection gauge of work gauge cooperation, the tapering of detecting the conical surface is the same with the tapering of the part of being surveyed.
Preferably, the inspection gauge is provided with an inspection taper corresponding to the detection taper.
Preferably, the cross-sectional shape of the clamping portion is a regular hexagon.
A method for detecting coloring of a conical surface of a guide pipe of an aircraft engine sequentially comprises the following steps:
s1: preparing a coloring agent according to the formula requirement;
s2: coating a proper amount of coloring agent on the detection conical surface of the working gauge, attaching the detection conical surface of the working gauge and the detection conical surface of the detection gauge to each other, comparing the color tone depth of the coloring layer of the detection conical surface with the color tone depth of the coloring layer of the detection conical surface, and determining that the detection conical surface of the working gauge meets the requirements;
s3: fixing the detected conduit on a clamp, attaching a detection conical surface meeting the requirements to the conical surface of the detected conduit, fixing a working gauge, screwing a pipe end outer sleeve nut of the detected conduit to a stop position of a detection thread, and applying torque to the pipe end outer sleeve nut according to a specified value by a torque wrench;
s4: after standing for a period of time, the connection is released, and when the connection is released, no relative circumferential displacement is generated between the conical surfaces;
s5: the conical surface of the examined catheter is inspected for traces of coloration.
Preferably, the colorant formulation in step S1 is a blue iron ore powder that is liberated with an industrial lubricant and stirred in sulfurized castor oil to a creamy alcohol.
Preferably, the clamping portion of the work gauge is fixed by a tool when the work gauge is fixed in step S3.
Preferably, the standing time in step S4 is 1 to 2 minutes.
Preferably, the qualified criterion of the examined catheter in step S5 is that the coloring trace should be an uninterrupted ring shape, and the minimum width area and distribution of the ring-shaped coloring trace should meet the relevant regulations.
The invention has the following beneficial effects:
the structure of the working gauge is optimally designed, and the outer side of the working gauge is provided with a detection thread corresponding to the pipe end outer sleeve nut, so that when the sealing conical surface of the pipe end of the engine conduit is subjected to coloring inspection, the working gauge is fixed, and a certain screwing torque is applied to the pipe end outer sleeve nut by using a torque wrench, so that the detection conical surface of the working gauge is tightly attached to the sealing inner conical surface of the pipe end, and the coloring inspection is performed. The coloring mode can ensure that the outer conical surface of the coloring gauge is tightly attached to the sealed inner conical surface of the pipe end, and can simulate the actual assembly state of the pipe end of the catheter to perform coloring inspection, so that the coloring effect is more accurate, the actual state is met, and the qualified rate of the coloring inspection of the sealed conical surface of the pipe end is improved. The invention has convenient operation and good reliability, and effectively solves the coloring inspection problem of the sealing conical surface of the pipe end. The coloring inspection effect and the qualification rate of the pipe end sealing conical surface are ensured, the sealing performance of the catheter component is verified powerfully, and the catheter component has a great use value.
Drawings
FIG. 1 is a schematic structural view of the present invention;
fig. 2 is a schematic structural view in the use process of the present invention.
Detailed Description
The principles and features of this invention are described below in conjunction with the following drawings, which are set forth by way of illustration only and are not intended to limit the scope of the invention.
Examples
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "communicating," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Some embodiments of the invention are described in detail below with reference to the accompanying drawings. The embodiments described below and the features of the embodiments can be combined with each other without conflict.
Referring to fig. 1 to 2, the device for detecting coloring of the conical surface of the aircraft engine conduit in the invention comprises a working gauge 1 and an inspection gauge 5 matched with the working gauge 1, wherein the working gauge 1 is optimally designed according to the structure of the engine conduit pipe joint connected with the working gauge 1, and when the coloring of the conical surface of the pipe end is checked, the actual pipe end sealing connection mode can be simulated, so that the working gauge 1 is in threaded connection with a pipe end outer sleeve nut. The checking gauge 5 is used for periodically checking the working gauge 1 so as to overhaul the conical surface of the working gauge 1.
Referring to fig. 1, the front end of the working gauge 1 is provided with a detection conical surface 2 for smearing a coloring agent, the taper of the detection conical surface 2 is the same as that of a part to be detected, the detection conical surface 2 is coaxially arranged with the center of the conical surface of a detected catheter, and the detection gauge 5 is provided with a detection conical surface 6 corresponding to the detection conical surface 2. The invention adopts the detection conical surface 2 with the same taper as the detected part to detect, so as to ensure that the detection conical surface 2 of the working gauge 1 is tightly attached to the sealed inner conical surface of the pipe end and carry out coloring inspection. The back end of the working gauge 1 is provided with a clamping part 3 which is convenient for a detector to clamp and fix the working gauge 1, and the section of the clamping part 3 is in a regular hexagon shape.
Referring to fig. 2, a detection thread 4 is arranged on a working gauge 1 and between a detection conical surface 2 and a clamping part 3, the thread specification of the detection thread 4 is the same as that of a pipe end outer sleeve nut of an aircraft engine pipe, the structure of the working gauge 1 is optimally designed, and the detection thread 4 corresponding to the pipe end outer sleeve nut is arranged on the outer side of the working gauge 1, so that when the coloring inspection is carried out on the sealing conical surface of the pipe end of the engine pipe, the working gauge 1 is fixed, and a certain screwing torque is applied to the pipe end outer sleeve nut by using a torque wrench, so that the detection conical surface 2 of the working gauge 1 is tightly attached to the sealing inner conical surface of the pipe end and the coloring inspection is carried out. The outer conical surface of the coloring gauge can be tightly attached to the sealed inner conical surface of the pipe end, and the actual assembly state of the pipe end of the catheter can be simulated for coloring inspection, so that the coloring effect is more accurate, the actual state is met, and the qualified rate of the coloring inspection of the sealed conical surface of the pipe end is improved.
The invention discloses a method for detecting coloring of a conical surface of an aircraft engine guide pipe, which sequentially comprises the following steps:
s1: the coloring agent is prepared according to the formula requirements, the formula of the coloring agent is that the ferrous sulfate powder is released by industrial lubricating oil and is stirred in the vulcanized castor oil until the mixture is in a mellow and creamy state.
S2: coating a proper amount of colorant on the detection conical surface 2 of the working gauge 1, attaching the detection conical surface 2 of the working gauge 1 and the inspection conical surface 6 of the inspection gauge 5 to each other, and then comparing the coloring layer tone depth of the detection conical surface 2 with the coloring layer tone depth of the inspection conical surface 6 to determine that the detection conical surface 2 of the working gauge 1 meets the requirements;
s3: fixing the detected conduit on a clamp, attaching a detection conical surface 2 meeting the requirements to the conical surface of the detected conduit, fixing a clamping part 3 of a working gauge 1 by adopting a common wrench, screwing a pipe end outer sleeve nut of the detected conduit to a stop position of a detection thread 4, and applying torque to the pipe end outer sleeve nut according to a specified value by using a torque wrench.
S4: after standing for 1 minute, loosening the threaded connection between the pipe end outer sleeve nut and the detection thread 4, and ensuring that no relative circumferential displacement is generated between the detection conical surface 2 and the conical surface of the detected catheter when loosening the connection;
s5: and inspecting the coloring traces on the conical surface of the detected catheter, wherein the qualified judgment standard of the detected catheter is that the coloring traces are in an uninterrupted annular shape, and the minimum width area and distribution of the annular coloring traces are in accordance with relevant regulations.
The structure of the working gauge 1 is optimally designed, and the outer side of the working gauge 1 is provided with the detection threads 4 corresponding to the pipe end outer sleeve nut, so that when the invention is used for coloring and checking the sealing conical surface of the pipe end of the engine conduit, the working gauge 1 is fixed, and a certain tightening torque is applied to the pipe end outer sleeve nut by using a torque wrench, so that the detection conical surface 2 of the working gauge 1 is tightly attached to the sealing inner conical surface of the pipe end and is subjected to coloring and checking. The coloring mode can ensure that the outer conical surface of the coloring gauge is tightly attached to the sealed inner conical surface of the pipe end, and can simulate the actual assembly state of the pipe end of the catheter to perform coloring inspection, so that the coloring effect is more accurate, the actual state is met, and the qualified rate of the coloring inspection of the sealed conical surface of the pipe end is improved. The invention has convenient operation and good reliability, and effectively solves the coloring inspection problem of the sealing conical surface of the pipe end. The coloring inspection effect and the qualification rate of the pipe end sealing conical surface are ensured, the sealing performance of the catheter component is verified powerfully, and the catheter component has a great use value.
It is to be noted that, in this document, the terms "comprises", "comprising" or any other variation thereof are intended to cover a non-exclusive inclusion, so that an article or apparatus including a series of elements includes not only those elements but also other elements not explicitly listed or inherent to such article or apparatus. Without further limitation, an element defined by the phrase "comprising … …" does not exclude the presence of additional like elements in the article or device comprising the element.
The present invention is not limited to the above preferred embodiments, and any modifications, equivalent replacements, improvements, etc. within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. The utility model provides an aeroengine pipe conical surface detection device that stains, characterized in that, including work gauge (1), set up detection conical surface (2) in work gauge (1) front end, set up clamping part (3) in work gauge (1) rear end, set up on work gauge (1) and lie in detection screw thread (4) between detection conical surface (2) and clamping part (3) and with work gauge (1) complex inspection gauge (5), the tapering of detecting conical surface (2) is the same with the tapering of surveyed part.
2. The aircraft engine duct cone coloring detection device according to claim 1, characterized in that the inspection gauge (5) is provided with an inspection cone (6) corresponding to the inspection cone (2).
3. The aircraft engine duct cone coloring detection device according to claim 1, characterized in that the cross-sectional shape of the clamping portion (3) is a regular hexagon.
4. The method for detecting the coloring of the conical surface of the guide pipe of the aircraft engine is characterized by sequentially comprising the following steps of:
s1: preparing a coloring agent according to the formula requirement;
s2: coating a proper amount of coloring agent on the detection conical surface (2) of the working gauge (1), enabling the detection conical surface (2) of the working gauge (1) and the inspection conical surface (6) of the inspection gauge (5) to be mutually attached, then comparing the coloring layer tone depth of the detection conical surface (2) with the coloring layer tone depth of the inspection conical surface (6), and determining that the detection conical surface (2) of the working gauge (1) meets the requirements;
s3: fixing the detected conduit on a clamp, attaching a detection conical surface (2) meeting the requirements to the conical surface of the detected conduit, fixing a working gauge (1), screwing a pipe end outer sleeve nut of the detected conduit to a stop position of a detection thread (4), and applying torque to the pipe end outer sleeve nut according to a specified value by a torque wrench;
s4: after standing for a period of time, the connection is released, and when the connection is released, no relative circumferential displacement is generated between the conical surfaces;
s5: the conical surface of the examined catheter is inspected for traces of coloration.
5. The aircraft engine duct cone coloring detection method according to claim 4, characterized in that: the formulation of the colorant in step S1 is such that the ferrocyanide powder is liberated with industrial lubricating oil and stirred in the sulfurized castor oil to a creamy alcoholic state.
6. The aircraft engine duct cone coloring inspection method according to claim 4, characterized in that a tool is used to fix the clamping portion (3) of the working gauge (1) when fixing the working gauge (1) in step S3.
7. The method for detecting coloring of tapered surfaces of an aircraft engine conduit according to claim 4, wherein the standing time in step S4 is 1 to 2 minutes.
8. The method for detecting coloring of tapered surface of duct of aircraft engine as claimed in claim 4, wherein the qualified criterion of the duct to be detected in step S5 is that the coloring trace should be an uninterrupted ring shape, and the minimum width area and distribution of the ring-shaped coloring trace should meet the relevant regulations.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010527428.7A CN111637816A (en) | 2020-06-11 | 2020-06-11 | Device and method for detecting coloring of conical surface of aircraft engine guide pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010527428.7A CN111637816A (en) | 2020-06-11 | 2020-06-11 | Device and method for detecting coloring of conical surface of aircraft engine guide pipe |
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| Publication Number | Publication Date |
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| CN111637816A true CN111637816A (en) | 2020-09-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010527428.7A Pending CN111637816A (en) | 2020-06-11 | 2020-06-11 | Device and method for detecting coloring of conical surface of aircraft engine guide pipe |
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| CN (1) | CN111637816A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112325747A (en) * | 2020-12-08 | 2021-02-05 | 中车永济电机有限公司 | Taper plug gauge painting thickness inspection gauge block and inspection method |
| CN114353723A (en) * | 2021-10-29 | 2022-04-15 | 中国航发西安动力控制科技有限公司 | Method for detecting fitting degree of spherical surface and ball socket of ball top structure |
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| CN114353723A (en) * | 2021-10-29 | 2022-04-15 | 中国航发西安动力控制科技有限公司 | Method for detecting fitting degree of spherical surface and ball socket of ball top structure |
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