CN105509611A - Measurement tool for detecting dimension of welding casing inner cavity and measurement method thereof - Google Patents

Measurement tool for detecting dimension of welding casing inner cavity and measurement method thereof Download PDF

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Publication number
CN105509611A
CN105509611A CN201510848708.7A CN201510848708A CN105509611A CN 105509611 A CN105509611 A CN 105509611A CN 201510848708 A CN201510848708 A CN 201510848708A CN 105509611 A CN105509611 A CN 105509611A
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CN
China
Prior art keywords
slide
bearing
lever
screw
measurement
Prior art date
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Granted
Application number
CN201510848708.7A
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Chinese (zh)
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CN105509611B (en
Inventor
郑松
孙玉林
孙海丽
孙玉伟
钱宝娟
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
AECC Shenyang Liming Aero Engine Co Ltd
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Shenyang Liming Aero Engine Group Co Ltd
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Publication date
Application filed by Shenyang Liming Aero Engine Group Co Ltd filed Critical Shenyang Liming Aero Engine Group Co Ltd
Priority to CN201510848708.7A priority Critical patent/CN105509611B/en
Publication of CN105509611A publication Critical patent/CN105509611A/en
Application granted granted Critical
Publication of CN105509611B publication Critical patent/CN105509611B/en
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Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01BMEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B5/00Measuring arrangements characterised by the use of mechanical means
    • G01B5/08Measuring arrangements characterised by the use of mechanical means for measuring diameters
    • G01B5/12Measuring arrangements characterised by the use of mechanical means for measuring diameters internal diameters

Abstract

The invention, which belongs to the technical field of dimension detection of an inner cavity of an aerial engine casing, provides a measurement tool for detecting a dimension of a welding casing inner cavity and a measurement method thereof. The measurement tool is characterized in that a chute is formed in a support seat along a horizontal direction; and a protrusion is arranged on a sliding seat and is arranged in the chute. The support seat and the sliding seat are connected by a nut and a screw rod arranged in a groove hole. A plurality of groups of positioning holes are formed in the support seat and the sliding seat along a vertical direction; and the support seat and the sliding seat are connected by bolts arranged in the positioning holes. A measurement rod is fixed at the inner side of the sliding seat; a straight slot is formed in the outer side of the sliding seat; and a middle part of a lever is arranged in the straight slot by a rotating shaft. A cover plate is fixed at the outer end of the sliding seat; the upper end of the lever is in contact with a dial indicator head; and a spring is arranged between the cover plate and the upper part of the lever. In addition, the measurement method includes: a nut is loosened, a positioning hole is selected, a bolt is inserted, and the nut is locked; and the measurement tool is arranged on a welding casing, so that a measurement point and an inner surface of an outer cavity of a part are in contact and a measurement end and the outer surface of the inner cavity of the part are in contact.

Description

A kind of measuring tool and measuring method thereof detecting welding casing inner cavity size
Technical field
The invention belongs to aero-engine casing inner cavity size detection technique field, particularly relate to a kind of measuring tool and the measuring method thereof that detect welding casing inner cavity size, detect for the semidiameter welding casing inner chamber differing heights point.
Background technology
In the semidiameter of welding casing inner chamber differing heights point detects, its dimensional discrepancy uses omnipotent method to be difficult to Measurement accuracy, therefore, cannot detect before weldering, in weldering, and be all generally that postwelding send between three-dimensional and detects, spended time is larger.Therefore, need to develop a kind of scene quick and precisely testing tool.
Summary of the invention
For prior art Problems existing, the invention provides a kind of measuring tool and the measuring method thereof that detect welding casing inner cavity size.The semidiameter that the invention solves welding casing inner chamber differing heights point is difficult to the problem quick and precisely detected, and its reality is easy to operate, quick, and cost is low.
To achieve these goals, the present invention adopts following technical scheme, a kind of measuring tool detecting welding casing inner cavity size, comprise bearing and slide, bearing is provided with chute in the horizontal direction, slide is provided with projection, described projection is arranged in chute, bearing and slide gapless sliding fit; Bearing and slide are provided with the slotted eye of vertical direction in the horizontal direction, and bearing is connected with the screw rod be arranged in slotted eye by nut with slide; Bearing and slide are vertically provided with some groups of pilot holes, and bearing is connected by the latch be arranged in pilot hole with slide, is vertically fixed with sounding rod in the inner side of slide, and the lower end of sounding rod is measurement point; Vertically be provided with groove in the outside of slide, the middle part of lever is arranged in groove by the rotating shaft vertically arranged, and described lever can rotate in groove, and the lower end of lever is measuring junction; Be fixed with cover plate in the outer end of slide, be on the cover board provided with through hole in the horizontal direction, in through hole, be provided with lining, in lining, be provided with dial gauge, the cover plate of lining side is provided with lock-screw, the inner of lock-screw contacts with lining; The upper end of lever contacts with the gauge outfit of dial gauge, between cover plate and the top of lever, be provided with spring, and the lower surface of bearing is locating surface.
Described screw rod and nut have been arranged side by side two groups.
Described cover plate is fixed on slide by pin and screw.
The measuring method of the measuring tool of the detection welding casing inner cavity size described in employing, comprises the steps:
Step one: unclamp the nut on screw rod, makes slide slide on bearing, selects one group of corresponding pilot hole, and insert latch according to locating surface to the distance of sounding rod measurement point in pilot hole; Then the nut on tie down screw, is fixed on slide on bearing;
Step 2: described measuring tool is placed on welding casing, the locating surface of bearing is contacted with the locating surface of part;
Step 3: dial gauge is arranged in lining, and be locked by lock-screw, carry out his-and-hers watches, zeroing;
Step 4: the measurement point of sounding rod is contacted with the inside surface of part exocoel, makes the measuring junction of lever contact with the outside surface of inner cavity of component under the action of the spring; Now, with the locating surface of bearing for benchmark, around central rotation measuring tool, the difference of dial gauge reading is the semidiameter of welding casing inner chamber at this height point.
Beneficial effect of the present invention:
The semidiameter that the invention solves welding casing inner chamber differing heights point is difficult to the problem quick and precisely detected, and its reality is easy to operate, quick, and cost is low.
Accompanying drawing explanation
Fig. 1 is the structural representation detecting the measuring tool of welding casing inner cavity size of the present invention;
Fig. 2 is the left view of Fig. 1;
Fig. 3 is the vertical view of Fig. 1;
In figure: 1-bearing, 2-sounding rod, 3-latch, 4-screw rod, 5-lining, 6-lever, 7-slide, 8-lock-screw, 9-nut, 10-cover plate, 11-inner chamber, 12-blade, 13-exocoel, 14-rotating shaft, 15-spring, 16-dial gauge, 17-measurement point, 18-pin, 19-screw, 20-pilot hole, 21-locating surface, 22-groove, 23-measuring junction, 24-is protruding, 25-slotted eye.
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is described in further detail.
As shown in FIG. 1 to 3, a kind of measuring tool detecting welding casing inner cavity size, comprises bearing 1 and slide 7, bearing 1 is provided with chute in the horizontal direction, slide 7 is provided with protruding 24, described protruding 24 to be arranged in chute, bearing 1 and slide 7 gapless sliding fit; Bearing 1 and slide 7 are provided with the slotted eye 25 of vertical direction in the horizontal direction, and bearing 1 is connected with the screw rod 4 be arranged in slotted eye 25 by nut 9 with slide 7; Bearing 1 and slide 7 are vertically provided with some groups of pilot holes 20, in the present embodiment, be provided with three groups of pilot holes 20, be respectively pilot hole A, pilot hole B and pilot hole C, bearing 1 is connected by the latch 3 be arranged in pilot hole 20 with slide 7, vertically be fixed with sounding rod 2 in the inner side of slide 7, the lower end of sounding rod 2 is measurement point 17; Vertically be provided with groove 22 in the outside of slide 7, the middle part of lever 6 is arranged in groove 22 by the rotating shaft 14 vertically arranged, and described lever 6 can rotate in groove 22, and the lower end of lever 6 is measuring junction 23; Cover plate 10 is fixed with in the outer end of slide 7, cover plate 10 is provided with through hole in the horizontal direction, in through hole, is provided with lining 5, in lining 5, be provided with dial gauge 16, the cover plate 10 of lining 5 side is provided with lock-screw 8, and the inner of lock-screw 8 contacts with lining 5; The upper end of lever 6 contacts with the gauge outfit of dial gauge 16, is provided with spring 15 between cover plate 10 and the top of lever 6, and the lower surface of bearing 1 is locating surface 21.
In order to make locking more stable, described screw rod 4 and nut 9 have been arranged side by side two groups.
Described cover plate 10 is fixed on slide 7 by pin 18 and screw 19.
The measuring method of the measuring tool of the detection welding casing inner cavity size described in employing, comprises the steps:
Step one: unclamp the nut 9 on screw rod 4, makes slide 7 slide on bearing 1, selects one group of corresponding pilot hole 20 according to locating surface 21 to the distance of sounding rod 2 measurement point 17, in the present embodiment, and regioselective hole A; In order to make slide 7 move up and down can not before and after play, in pilot hole A, insert latch 3; Then the nut 9 on tie down screw 4, is fixed on slide 7 on bearing 1, and slide 7 is not swung on bearing 1;
Step 2: described measuring tool is placed on welding casing, the locating surface 21 of bearing 1 is contacted with the locating surface of part;
Step 3: dial gauge 16 is arranged in lining 5, and be locked by lock-screw 8, carry out his-and-hers watches, zeroing;
Step 4: the measurement point 17 of sounding rod 2 is contacted with the inside surface of part exocoel 13, makes the measuring junction 23 of lever 6 contact with the outside surface of inner cavity of component 11 under the effect of spring 15, and spring 15 can ensure measuring junction 23 contact part all the time of lever 6; Now, with the locating surface 21 of bearing 1 for benchmark, around central rotation measuring tool, error is delivered on dial gauge 16 by lever 6, and the difference of dial gauge 16 reading is the welding semidiameter of casing inner chamber at this height point and the error amount of part reality.
The present invention can adjust measuring tool according to welding casing inner chamber differing heights measurement point, it adopts two-point measurement, it is some the measurement point 17 of point of fixity and sounding rod 2 lower end, be some the measuring junction 23 of moving point and lever 6 lower end, the present invention can adjust the height of the measuring junction 23 of lever 6 and the measurement point 17 of sounding rod 2.

Claims (4)

1. detect a measuring tool for welding casing inner cavity size, it is characterized in that comprising bearing and slide, bearing is provided with chute in the horizontal direction, slide is provided with projection, described projection is arranged in chute, bearing and slide gapless sliding fit; Bearing and slide are provided with the slotted eye of vertical direction in the horizontal direction, and bearing is connected with the screw rod be arranged in slotted eye by nut with slide; Bearing and slide are vertically provided with some groups of pilot holes, and bearing is connected by the latch be arranged in pilot hole with slide, is vertically fixed with sounding rod in the inner side of slide, and the lower end of sounding rod is measurement point; Vertically be provided with groove in the outside of slide, the middle part of lever is arranged in groove by the rotating shaft vertically arranged, and described lever can rotate in groove, and the lower end of lever is measuring junction; Be fixed with cover plate in the outer end of slide, be on the cover board provided with through hole in the horizontal direction, in through hole, be provided with lining, in lining, be provided with dial gauge, the cover plate of lining side is provided with lock-screw, the inner of lock-screw contacts with lining; The upper end of lever contacts with the gauge outfit of dial gauge, between cover plate and the top of lever, be provided with spring, and the lower surface of bearing is locating surface.
2. the measuring tool detecting welding casing inner cavity size according to claim 1, is characterized in that described screw rod and nut have been arranged side by side two groups.
3. the measuring tool detecting welding casing inner cavity size according to claim 1, is characterized in that described cover plate is fixed on slide by pin and screw.
4. adopt the measuring method detecting the measuring tool of welding casing inner cavity size according to claim 1, it is characterized in that, comprise the steps:
Step one: unclamp the nut on screw rod, makes slide slide on bearing, selects one group of corresponding pilot hole, and insert latch according to locating surface to the distance of sounding rod measurement point in pilot hole; Then the nut on tie down screw, is fixed on slide on bearing;
Step 2: described measuring tool is placed on welding casing, the locating surface of bearing is contacted with the locating surface of part;
Step 3: dial gauge is arranged in lining, and be locked by lock-screw, carry out his-and-hers watches, zeroing;
Step 4: the measurement point of sounding rod is contacted with the inside surface of part exocoel, makes the measuring junction of lever contact with the outside surface of inner cavity of component under the action of the spring; Now, with the locating surface of bearing for benchmark, around central rotation measuring tool, the difference of dial gauge reading is the semidiameter of welding casing inner chamber at this height point.
CN201510848708.7A 2015-11-26 2015-11-26 The measuring tool and its measurement method of a kind of detection welding casing inner cavity size Active CN105509611B (en)

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Application Number Priority Date Filing Date Title
CN201510848708.7A CN105509611B (en) 2015-11-26 2015-11-26 The measuring tool and its measurement method of a kind of detection welding casing inner cavity size

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Application Number Priority Date Filing Date Title
CN201510848708.7A CN105509611B (en) 2015-11-26 2015-11-26 The measuring tool and its measurement method of a kind of detection welding casing inner cavity size

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CN105509611A true CN105509611A (en) 2016-04-20
CN105509611B CN105509611B (en) 2018-09-14

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106595421A (en) * 2016-11-29 2017-04-26 沈阳黎明航空发动机(集团)有限责任公司 Online measurement and detection method for aviation casing T slot
CN108020137A (en) * 2017-11-30 2018-05-11 中国航发沈阳黎明航空发动机有限责任公司 Quick measurement casing outer wall radial difference mechanism and its application method
CN109357599A (en) * 2018-11-20 2019-02-19 中国航发沈阳黎明航空发动机有限责任公司 A kind of the overall processing measuring device and method of Middle casing wax-pattern
CN109489543A (en) * 2018-11-14 2019-03-19 中国航发动力股份有限公司 The detection device of casing stator blade supramarginal plate and casing inner flow passage face concavo-convex amount
CN111678405A (en) * 2020-04-30 2020-09-18 中国航发南方工业有限公司 Blade tenon size and angle measuring device

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109443160B (en) * 2018-12-07 2021-06-25 中国航发南方工业有限公司 Device and method for measuring outer diameter of annular groove in casing

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RU2081395C1 (en) * 1990-06-07 1997-06-10 Роберт Иннокентьевич Буйнов Lever caliper
CN2453384Y (en) * 2000-12-08 2001-10-10 上海柴油机股份有限公司 Device for measuring diameter of shellow holes
CN101126619A (en) * 2006-08-17 2008-02-20 汉中万目仪电有限责任公司 Oil pipe thread, internal thread, pitch diameter measuring device
CN201463808U (en) * 2009-06-23 2010-05-12 北京北内柴油机有限责任公司 Measuring device for large precisely-bored spigots
CN202974107U (en) * 2012-11-15 2013-06-05 沈阳黎明航空发动机(集团)有限责任公司 Measuring equipment of adjustable inclined-block synchronous displacement positioning mechanism
CN203785591U (en) * 2014-03-14 2014-08-20 中山中炬精工机械有限公司 Belt wheel outer ring groove combined gauge
CN104075642A (en) * 2014-06-30 2014-10-01 成都飞机工业(集团)有限责任公司 Detecting device for detecting diameters of cylinders and inner diameters of round holes
CN104374277A (en) * 2014-11-12 2015-02-25 常州市新西华亚工具有限公司 Hole diameter measuring tool

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2081395C1 (en) * 1990-06-07 1997-06-10 Роберт Иннокентьевич Буйнов Lever caliper
CN2453384Y (en) * 2000-12-08 2001-10-10 上海柴油机股份有限公司 Device for measuring diameter of shellow holes
CN101126619A (en) * 2006-08-17 2008-02-20 汉中万目仪电有限责任公司 Oil pipe thread, internal thread, pitch diameter measuring device
CN201463808U (en) * 2009-06-23 2010-05-12 北京北内柴油机有限责任公司 Measuring device for large precisely-bored spigots
CN202974107U (en) * 2012-11-15 2013-06-05 沈阳黎明航空发动机(集团)有限责任公司 Measuring equipment of adjustable inclined-block synchronous displacement positioning mechanism
CN203785591U (en) * 2014-03-14 2014-08-20 中山中炬精工机械有限公司 Belt wheel outer ring groove combined gauge
CN104075642A (en) * 2014-06-30 2014-10-01 成都飞机工业(集团)有限责任公司 Detecting device for detecting diameters of cylinders and inner diameters of round holes
CN104374277A (en) * 2014-11-12 2015-02-25 常州市新西华亚工具有限公司 Hole diameter measuring tool

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106595421A (en) * 2016-11-29 2017-04-26 沈阳黎明航空发动机(集团)有限责任公司 Online measurement and detection method for aviation casing T slot
CN106595421B (en) * 2016-11-29 2019-04-19 沈阳黎明航空发动机(集团)有限责任公司 A kind of on-machine measurement detection method of aviation casing T-slot
CN108020137A (en) * 2017-11-30 2018-05-11 中国航发沈阳黎明航空发动机有限责任公司 Quick measurement casing outer wall radial difference mechanism and its application method
CN108020137B (en) * 2017-11-30 2019-10-01 中国航发沈阳黎明航空发动机有限责任公司 Rapid survey casing outer wall radial difference mechanism and its application method
CN109489543A (en) * 2018-11-14 2019-03-19 中国航发动力股份有限公司 The detection device of casing stator blade supramarginal plate and casing inner flow passage face concavo-convex amount
CN109357599A (en) * 2018-11-20 2019-02-19 中国航发沈阳黎明航空发动机有限责任公司 A kind of the overall processing measuring device and method of Middle casing wax-pattern
CN111678405A (en) * 2020-04-30 2020-09-18 中国航发南方工业有限公司 Blade tenon size and angle measuring device

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Address after: 110043 Dong TA street, Dadong District, Shenyang, Liaoning Province, No. 6

Patentee after: Chinese Hangfa Shenyang Liming Aero engine limited liability company

Address before: 110043 Dong TA street, Dadong District, Shenyang, Liaoning Province, No. 6

Patentee before: Liming Aeroplane Engine (Group) Co., Ltd., Shenyang City