CN111360583A - Special inner diameter measuring tool for exhaust assembly in aircraft engine and using method thereof - Google Patents
Special inner diameter measuring tool for exhaust assembly in aircraft engine and using method thereof Download PDFInfo
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- CN111360583A CN111360583A CN202010332894.XA CN202010332894A CN111360583A CN 111360583 A CN111360583 A CN 111360583A CN 202010332894 A CN202010332894 A CN 202010332894A CN 111360583 A CN111360583 A CN 111360583A
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- base
- lever
- measuring tool
- inner diameter
- measuring
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- 238000000034 method Methods 0.000 title claims abstract description 8
- 238000003754 machining Methods 0.000 claims abstract description 16
- 238000005259 measurement Methods 0.000 claims abstract description 8
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 230000007547 defect Effects 0.000 description 2
- 238000001514 detection method Methods 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q17/00—Arrangements for observing, indicating or measuring on machine tools
- B23Q17/20—Arrangements for observing, indicating or measuring on machine tools for indicating or measuring workpiece characteristics, e.g. contour, dimension, hardness
-
- 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
- G01B5/0002—Arrangements for supporting, fixing or guiding the measuring instrument or the object to be measured
-
- 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
- G01B5/08—Measuring arrangements characterised by the use of mechanical techniques for measuring diameters
- G01B5/12—Measuring arrangements characterised by the use of mechanical techniques for measuring diameters internal diameters
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- A Measuring Device Byusing Mechanical Method (AREA)
Abstract
The invention relates to a special inner diameter measuring tool for an exhaust assembly in an aircraft engine and a using method thereof, which are used for measuring the inner diameter of the exhaust assembly in the aircraft engine and comprise a base, a mounting plate, a data table and a lever, wherein the mounting plate is used for fixing the data table, the inner diameter size of a machining ring is relatively measured by combining the lever principle and the data table, and the measuring tool can be directly used on a machine tool for measuring without disassembling parts during combined machining of a tail nozzle, so that the disassembling times during measurement are reduced, the machining errors caused by repeated clamping and repeated positioning are reduced, the measuring precision and the machining precision of the exhaust assembly are improved, the machining period is shortened, the production cost is reduced, and the product percent of pass is improved. The measuring tool has simple structure, safety and reliability.
Description
Technical Field
The invention relates to the field of precision control of aviation equipment, in particular to a special inner diameter measuring tool for an exhaust assembly in an aero-engine and a using method thereof.
Background
The aircraft engine cannot be installed due to high crack failure rate of the exhaust assembly and has no domestic self-control capability, so the development capability of the exhaust assembly is urgently needed to ensure the power requirement of the aircraft. The machining ring in the tail nozzle is a connecting structure part, so that accurate assembly of the exhaust assembly and other structures of the engine is guaranteed, the requirement on the combined machining precision is high, and the machining quality directly influences the stress condition of the product during assembly, the service life of the product and the safety of the whole machine.
In the combined machining process of the exhaust assembly in the aircraft engine, because the traditional inside micrometer needs a large working space and cannot be placed in a machine tool, the exhaust assembly needs to be detached from the machine tool for many times and taken out for measurement, repeated clamping and positioning can generate errors when the machining is continued, and because the exhaust assembly is complex in structure, a large amount of time is needed for detaching and installing, the scrapping risk is seriously increased, and the production efficiency is reduced.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide a measuring tool special for measuring the inner diameter of a machining ring when an exhaust assembly of a certain type of aircraft engine is manufactured.
The purpose of the invention is realized by the following technical scheme: a special inner diameter measuring tool for an exhaust assembly in an aircraft engine is used for measuring the inner diameter of the exhaust assembly in the aircraft engine and comprises a base, a mounting plate, a data table and a lever; wherein:
one end of the base is provided with a positioning pin, and the lever and the mounting plate are positioned at the other end of the base; the base and the data table are fixedly connected with the mounting plate; the lever is movably connected with the base; the lever comprises a measuring end and a driven end, a pin a is fixed at the other end of the base, and the lever further comprises a spring a, one end of the spring a is fixedly connected with the measuring end, and the other end of the spring a is fixedly connected with the pin a; the spring a restrains the measuring end of the lever, so that the measuring end can be ensured to be tightly leaned on a measured workpiece, and the driven end can accurately reflect the measured data to a data table; the driven end is attached to the data table; and measuring contacts are arranged at the measuring ends of the positioning pin and the lever, so that the measuring precision is ensured.
Preferably, the mounting plate is L-shaped, one end of the mounting plate is provided with a through hole for mounting a meter clamp nut, and the data meter is connected with the mounting plate through the meter clamp nut; the other end of the mounting plate is fixed on the upper side of the base through an inner hexagon bolt.
Preferably, the device also comprises a positioning block, and the movable direction of the lever is ensured to be the same as the direction of the inner diameter to be measured by the fixation of the positioning block; the positioning block is fixed on the side face of the base through a countersunk bolt, the lever is positioned between the positioning block and the base, and the positioning block and the base are attached to the surface of the lever; the positioning device comprises a lever, a positioning block and a base, wherein the lever is arranged on the base, the positioning block is movably connected with the lever through a cylindrical pin, and the base is movably connected with the positioning block through the cylindrical pin.
Preferably, a plurality of cushion blocks are arranged on the lower side of the base, and the cushion blocks can be matched according to the placement height of the measuring tool under the actual condition for use, so that the stability during measurement is ensured; the cushion blocks are distributed at two ends of the base and positioned between the lever and the positioning pin; the cushion blocks at each end of the base are hinged end to end; the base is provided with a plurality of pins b and a plurality of springs b, one of the blocks is fixedly connected with the base, one end of each spring b is fixedly connected with the other blocks, the other end of each spring b is fixedly connected with the pins b, and the springs b are restrained to ensure the stability of the blocks after folding.
A use method of a special inner diameter measuring tool for an exhaust assembly in an aircraft engine comprises the following steps:
s1: adjusting a plurality of cushion blocks on the measuring tool to proper positions;
s2: clamping the measuring tool in a standard measuring block matched with the measuring tool;
s3: calibrating, namely adjusting a pointer of the data table to point to a zero position;
s4: the measuring tool is clamped into the machining ring, and the numerical value of the data table is read out;
s5: the inner diameter size can be obtained by adding the read value and the actual value of the standard gauge block.
The invention has the following advantages:
1. the invention has small occupied space, can directly measure on a machine tool, reduces the times of disassembly and assembly when an operator measures, and effectively improves the detection efficiency of the inner diameter size of a machining ring in the exhaust assembly;
2. the compensation processing can be carried out in time after the measurement, so that the production efficiency of the exhaust assembly component is improved;
3. the invention overcomes the defect that the traditional inside micrometer has errors due to uneven placement, and greatly reduces the risk of over-tolerance scrapping and the production cost.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the present invention mounted with a workpiece;
in the figure: 1-a lever; 101-a driven end; 102-a measurement end; 2-mounting a plate; 3-data sheet; 4-spring b; 5-pin b; 6-a base; 7-a positioning pin; 8-cushion block; 9-spring a; 10-pin a; 11-positioning block.
Detailed Description
The invention will be further described with reference to the accompanying drawings, but the scope of the invention is not limited to the following.
As shown in the figure, the special inner diameter measuring tool for the exhaust assembly in the aircraft engine is used for measuring the inner diameter of the exhaust assembly in the aircraft engine and comprises a base 6, a mounting plate 2, a data table 3 and a lever 1; one end of the base 6 is provided with a positioning pin 7, and the lever 1 and the mounting plate 2 are positioned at the other end of the base 6; the base 6 and the data table 3 are fixedly connected with the mounting plate 2; the lever 1 is movably connected with the base 6; the lever 1 comprises a measuring end 102 and a driven end 101, a pin a10 is fixed at the other end of the base 6, a spring a9 is further included, one end of the spring a9 is fixedly connected with the measuring end 102, and the other end of the spring a9 is fixedly connected with a pin a 10; the restriction of the spring a9 on the measuring end 102 of the lever 1 ensures that the measuring end 102 can abut against a workpiece to be measured and the driven end 101 can accurately reflect the measured data to the data table 3; the driven end 101 is attached to the data table 3; and measuring contacts are arranged on the positioning pin 7 and the measuring end 102 of the lever 1, so that the measuring precision is ensured.
Preferably, the mounting plate 2 is L-shaped, one end of the mounting plate 2 is provided with a through hole for mounting a meter clamp nut, and the data table 3 is connected with the mounting plate 2 through the meter clamp nut; the other end of the mounting plate 2 is fixed on the upper side of the base 6 through a hexagon socket head cap screw.
Preferably, the device also comprises a positioning block 11, and the movable direction of the lever 1 is ensured to be the same as the direction of the inner diameter to be measured through the fixation of the positioning block 11; the positioning block 11 is fixed on the side surface of the base 6 through a countersunk bolt, the lever 1 is positioned between the positioning block 11 and the base 6, and the positioning block 11 and the base 6 are both attached to the surface of the lever 1; the positioning device is characterized in that a cylindrical pin is arranged between the positioning block 11 and the base 6, a through hole for penetrating the cylindrical pin is formed in the middle of the lever 1, and the positioning block 11 and the base 6 are movably connected with the lever 1 through the cylindrical pin.
Preferably, a plurality of cushion blocks 8 are arranged on the lower side of the base 6, and the cushion blocks 8 can be matched according to the placement height of the measuring tool under the actual condition to ensure the stability during measurement; the cushion blocks 8 are distributed at two ends of the base 6 and are positioned between the lever 1 and the positioning pin 7; the cushion blocks 8 at each end of the base 6 are hinged end to end; cushion 8 can be two, be equipped with a plurality of pins b5 on the base 6, still include many spring b4, one of them and base 6 fixed connection in the polylith cushion 8, spring b 4's one end and all the other cushion 8 fixed connection, the other end and pin b5 fixed connection, spring b 4's restraint can guarantee the stability after cushion 8 folding.
Preferably, the data table 3 is a dial indicator; the inner diameter size of the machining ring is relatively measured by combining the principle of the lever 1 and a dial indicator, so that the measurement precision is improved.
A use method of a special inner diameter measuring tool for an exhaust assembly in an aircraft engine comprises the following steps:
s1: adjusting a plurality of cushion blocks 8 on the measuring tool to proper positions;
s2: clamping the measuring tool in a standard measuring block matched with the measuring tool;
s3: calibrating, namely adjusting the pointer of the data table 3 to point to a zero position;
s4: the measuring tool is clamped into the machining ring, and the numerical value of the data table 3 is read out;
s5: the inner diameter size can be obtained by adding the read value and the actual value of the standard gauge block.
Claims (5)
1. The utility model provides a special internal diameter of exhaust subassembly surveys utensil among aeroengine for the measurement of aeroengine exhaust subassembly internal diameter, its characterized in that: comprises a base (6), a mounting plate (2), a data table (3) and a lever (1); wherein:
one end of the base (6) is provided with a positioning pin (7), and the lever (1) and the mounting plate (2) are positioned at the other end of the base (6); the base (6) and the data table (3) are fixedly connected with the mounting plate (2); the lever (1) is movably connected with the base (6); the lever (1) comprises a measuring end (102) and a driven end (101), a pin a (10) is fixed to the other end of the base (6), the lever further comprises a spring a (9), one end of the spring a (9) is fixedly connected with the measuring end (102), and the other end of the spring a (9) is fixedly connected with the pin a (10); the driven end (101) is attached to the data table (3).
2. The special inner diameter measuring tool for the exhaust assembly in the aircraft engine as claimed in claim 1, wherein: the data meter is characterized in that the mounting plate (2) is L-shaped, one end of the mounting plate (2) is provided with a through hole for mounting a meter clamp nut, and the data meter (3) is connected with the mounting plate (2) through the meter clamp nut; the other end of the mounting plate (2) is fixed on the upper side of the base (6) through an inner hexagon bolt.
3. The special inner diameter measuring tool for the exhaust assembly in the aircraft engine according to claim 1, characterized in that: the positioning device is characterized by further comprising a positioning block (11), wherein the positioning block (11) is fixed on the side face of the base (6) through a countersunk bolt, the lever (1) is located between the positioning block (11) and the base (6), and the positioning block (11) and the base (6) are attached to the surface of the lever (1); the positioning device is characterized in that a cylindrical pin is arranged between the positioning block (11) and the base (6), a through hole for penetrating through the cylindrical pin is formed in the middle of the lever (1), and the positioning block (11) and the base (6) are movably connected with the lever (1) through the cylindrical pin.
4. The special inner diameter measuring tool for the exhaust assembly in the aircraft engine as claimed in claim 1, wherein: a plurality of cushion blocks (8) are arranged on the lower side of the base (6), and the cushion blocks (8) are distributed at two ends of the base (6) and are positioned between the lever (1) and the positioning pin (7); the cushion blocks (8) at each end of the base (6) are hinged end to end; be equipped with a plurality of pins b (5) on base (6), still include many springs b (4), one of them and base (6) fixed connection in polylith cushion (8), the one end and all the other cushion (8) fixed connection of spring b (4), the other end and pin b (5) fixed connection.
5. The use method of the special inner diameter measuring tool for the exhaust assembly in the aircraft engine as claimed in claims 1-4, is characterized in that: the method comprises the following steps:
s1: adjusting a plurality of cushion blocks (8) on the measuring tool to proper positions;
s2: clamping the measuring tool in a standard measuring block matched with the measuring tool;
s3: calibrating, namely adjusting a pointer of the data table (3) to point to a zero position;
s4: the measuring tool is clamped into the machining ring, and the numerical value of the data table (3) is read out;
s5: the inner diameter size can be obtained by adding the read value and the actual value of the standard gauge block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010332894.XA CN111360583A (en) | 2020-04-24 | 2020-04-24 | Special inner diameter measuring tool for exhaust assembly in aircraft engine and using method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010332894.XA CN111360583A (en) | 2020-04-24 | 2020-04-24 | Special inner diameter measuring tool for exhaust assembly in aircraft engine and using method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111360583A true CN111360583A (en) | 2020-07-03 |
Family
ID=71201995
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010332894.XA Pending CN111360583A (en) | 2020-04-24 | 2020-04-24 | Special inner diameter measuring tool for exhaust assembly in aircraft engine and using method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111360583A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115615276A (en) * | 2022-12-19 | 2023-01-17 | 成都航利航空科技有限责任公司 | Caliper gauge with adjustable width and size and measuring method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH594879A5 (en) * | 1976-03-01 | 1978-01-31 | Alfred Ernst | |
| US4107978A (en) * | 1976-03-01 | 1978-08-22 | Alfred Ernst | Durometer according to Rockwell system |
| CN101776429A (en) * | 2010-02-13 | 2010-07-14 | 桂林福达曲轴有限公司 | Check tool for measuring axial length of crank shaft and application thereof |
| CN104567606A (en) * | 2014-12-20 | 2015-04-29 | 重庆大江渝强塑料制品有限公司 | Lever type inside diameter detection device for workpiece |
| CN212095562U (en) * | 2020-04-24 | 2020-12-08 | 成都航利航空科技有限责任公司 | Special internal diameter measuring tool for exhaust assembly in aircraft engine |
-
2020
- 2020-04-24 CN CN202010332894.XA patent/CN111360583A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH594879A5 (en) * | 1976-03-01 | 1978-01-31 | Alfred Ernst | |
| US4107978A (en) * | 1976-03-01 | 1978-08-22 | Alfred Ernst | Durometer according to Rockwell system |
| CN101776429A (en) * | 2010-02-13 | 2010-07-14 | 桂林福达曲轴有限公司 | Check tool for measuring axial length of crank shaft and application thereof |
| CN104567606A (en) * | 2014-12-20 | 2015-04-29 | 重庆大江渝强塑料制品有限公司 | Lever type inside diameter detection device for workpiece |
| CN212095562U (en) * | 2020-04-24 | 2020-12-08 | 成都航利航空科技有限责任公司 | Special internal diameter measuring tool for exhaust assembly in aircraft engine |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115615276A (en) * | 2022-12-19 | 2023-01-17 | 成都航利航空科技有限责任公司 | Caliper gauge with adjustable width and size and measuring method |
| CN115615276B (en) * | 2022-12-19 | 2023-08-22 | 成都航利航空科技有限责任公司 | Caliper with adjustable width and dimension and measuring method |
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