CN103063109B - The spacing axial wall thickness dimension measuring method of variable cross-section inner cavity revolution body - Google Patents
The spacing axial wall thickness dimension measuring method of variable cross-section inner cavity revolution body Download PDFInfo
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- CN103063109B CN103063109B CN201210578856.8A CN201210578856A CN103063109B CN 103063109 B CN103063109 B CN 103063109B CN 201210578856 A CN201210578856 A CN 201210578856A CN 103063109 B CN103063109 B CN 103063109B
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Abstract
The invention discloses the spacing axial wall thickness dimension measuring method of variable cross-section inner cavity revolution body, it comprises: prepares to measure axle, prepare alignment pin, prepare survey tool, be placed on verifying bench by apotting spindle, the large end face of apotting spindle contacts with the work surface of verifying bench downwards, the big end of lining is fitted down on apotting spindle, rotate lining, make the steps such as abundant and apotting spindle the small end face of the inner chamber conical surface of lining is fully contacted.The invention has the beneficial effects as follows: (1), measuring method are simple, accurate, convenient, detection efficiency is high；(2), measuring and can implement at processing site, operator can grasp machining status in time, and implements to adjust to technological parameter；(3), being particularly suited for batch production, work efficiency is higher.
Description
Technical field
The present invention relates to the spacing axial wall thickness dimension measuring method of variable cross-section inner cavity revolution body, belong to field of measuring technique.
Background technology
Check in industry that the method for wall thickness generally adopts wall thickness vernier caliper measurement, wall thickness calipers or uses three coordinate metrology.Wall thickness calliper, wall thickness calipers such as are only applicable at the wall thickness and wall thickness dimension requirement is the detection of normal orientation, and the wall thickness of variable cross-section cannot be detected, because when checking wall thickness with wall thickness vernier caliper measurement, wall thickness calipers, cannot realize radially spacing, card base contacts with measured and produces measurement power simultaneously, measurement power will make card base slide along the direction that wall thickness reduces, and causes that the error measured is excessive；Repeatedly measure, its result difference 1mm.Although can accurately detecting the spacing axial wall thickness dimension of variable cross-section with three coordinates, but three-dimensional coordinates measurement existing many deficiencies, 1, certainty of measurement superfluous, the wasting of resources；2, the detection of high-volume part is not suitable for, 3, work station is measured with processing not in same place of working, part is caused to have enough to meet the need, increase cost, 4, processing high-volume part, tool wear will cause the change of processing dimension, if part detects not in time, operator cannot grasp the dynamic situation of processing in time, also cannot adjust working process parameter in time and ensure that processing part is qualified.
Summary of the invention
It is an object of the invention to provide the spacing axial wall thickness dimension measuring method of variable cross-section inner cavity revolution body, accurate at processing site, the convenient, fast enforcement of operator can be made to measure, grasp the situation of change of processing, timely adjusting process parameter, it is ensured that processing dimension is qualified.
It is an object of the invention to be achieved through the following technical solutions: the spacing axial wall thickness dimension measuring method of variable cross-section inner cavity revolution body, it comprises the steps of
(1), prepare to measure axle: manufacture measurement and positioning axle according to the size design of lining, apotting spindle is three step-like, stage casing cylindrical coordinates with the hole size of lining, the long 4-8mm of length ratio lining of apotting spindle, the external diameter of the small end face of apotting spindle is equal with the radial direction locating dimension of the tested variable cross-section of lining, the overall length l of record location axle；
(2), alignment pin is prepared: the size design alignment pin according to lining, alignment pin is two step-like, the small end cylindrical of alignment pin and lining small end inner hole, the length of alignment pin small end cylindrical and the short 2-3mm of hole length in lining small end, alignment pin big end outside diameter is equal with the radial direction locating dimension of the tested variable cross-section of lining；
(3), survey tool is prepared: verifying bench and height vernier calliper；
(4), apotting spindle is placed on verifying bench, the large end face of apotting spindle contacts with the work surface of verifying bench downwards, big by lining is assembled on apotting spindle to lower end, rotates lining, makes the inner chamber conical surface of lining fully be fully contacted with the small end face of apotting spindle；
(5), alignment pin is assemblied in the small end endoporus of lining；
(6), height vernier calliper is placed on verifying bench, mobile height vernier calliper, make what the vernier of height vernier calliper was adjacent to alignment pin to hold greatly cylindrical；
(7), move down the vernier of height vernier calliper, make the male cone (strobilus masculinus) of vernier work surface contact lining, read height value L；
(8), the spacing axial wall thickness dimension=L-l of lining variable cross-section is calculated.
The beneficial effects of the present invention is: (1), measuring method are simple, accurate, convenient, detection efficiency is high；(2), measuring and can implement at processing site, operator can grasp machining status in time, and implements to adjust to technological parameter；(3), being particularly suited for batch production, work efficiency is higher.
Accompanying drawing explanation
Fig. 1 is the structural representation of apotting spindle of the present invention；
Fig. 2 is the structural representation of alignment pin of the present invention；
Fig. 3 is that the present invention uses schematic diagram；
Fig. 4 is the structural representation of lining to be measured.
Wherein, 1-verifying bench, 2-height vernier calliper, 2a-vernier, 3-apotting spindle, 3a-stage casing cylindrical, 3b-small end face, the big end of 3c-, 3d-outer groove, 4-alignment pin, the big end cylindrical of 4a-, 4b-small end cylindrical, 5-lining, the 5a-inner chamber conical surface, 5b-male cone (strobilus masculinus).
Detailed description of the invention
Technical scheme is further described below in conjunction with accompanying drawing, but described in the scope claimed is not limited to.
The spacing axial wall thickness dimension measuring method of variable cross-section inner cavity revolution body, it comprises the steps of
(1), prepare to measure axle: manufacture measurement and positioning axle 3 according to the size design of lining 5, such as Fig. 1, apotting spindle 3 is step-like in three, stage casing cylindrical 3a coordinates with the hole size of lining 5, and ensure fit clearance 0.03, the long 4-8mm of length ratio lining 5 of apotting spindle 3, the external diameter of apotting spindle 3 small end face 3b is equal with the radial direction locating dimension of the tested variable cross-section of lining 5, ensure the end face of the small end face 3b of apotting spindle 3 and the depth of parallelism 0.03 of the big end face holding 3c, the overall length l of record location axle 3；
(2), alignment pin 4 is prepared: the size design alignment pin 4 according to lining 5, such as Fig. 2, alignment pin 4 is step-like in two, the small end cylindrical 4b of alignment pin 4 and lining 5 small end inner hole, ensure fit clearance 0.03, the length of alignment pin 4 small end cylindrical 4b and the short 2-3mm of hole length in lining 5 small end, alignment pin 4 holds greatly cylindrical 4a diameter equal with the radial direction locating dimension of the tested variable cross-section of lining 5, and small end cylindrical 4b ensures axiality 0.03 with big end cylindrical 4a；
(3), survey tool is prepared: verifying bench 1 and height vernier calliper 2；
(4), such as Fig. 3, apotting spindle 3 is placed on verifying bench 1, the large end face 3c of apotting spindle 3 contacts with the work surface of verifying bench 1 downwards, the big end of lining 5 is assembled on apotting spindle 3, rotate lining 5, make the inner chamber conical surface 5a of lining 5 fully be fully contacted with the small end face 3b of apotting spindle 3；
(5), alignment pin 4 is assemblied in the small end endoporus of lining 5；
(6), height vernier calliper 2 is placed on verifying bench 1, mobile height vernier calliper 2, make the vernier 2a of height vernier calliper 2 be adjacent to the big end cylindrical 4a of alignment pin 4；
(7), move down the vernier 2a of height vernier calliper 2, make the male cone (strobilus masculinus) 5b of vernier 2a work surface contact lining 5, read height value L；
(8), the spacing axial wall thickness dimension=L-l of lining 5 variable cross-section is calculated.
Such as Fig. 4, lining 5 inner chamber bottom inner conical surface 5a becomes 15 ° with vertical direction, male cone (strobilus masculinus) 5b becomes 22 ° of conical surfaces with vertical direction, inside and outside frustoconical bevel angle not etc., does not define variable cross-section cone, and namely axially wall thickness changes with the change of radial position size, on design code radial position φ 50, non-uniform shaft is 3.3 ± 0.3mm to wall thickness dimension, now utilizes the measuring method of the present invention, and the process of this lining inner chamber variable cross-section spacing axial wall thickness dimension measurement is as follows:
1, manufacturing and designing measurement axle: measure axle 3 according to the size design manufacture of lining 5, measure axle, the stage casing cylindrical 3a of 3 isThe middle part of stage casing cylindrical 3a is designed as the outer groove 3d of discontinuity, small end face 3b external diameter is φ 50mm, the medium design end face endoporus of small end face 3b end face, hole size φ 45mm, prevent from during for detecting interfering with lining inner chamber bottom, the depth of parallelism 0.03 of big small end face, after processing completion, axle 3 overall dimensions l=80.1mm is measured in actual measurement；
2, manufacturing and designing alignment pin: the size design alignment pin 4 according to lining 5, the diameter of the small end cylindrical 4b of alignment pin 4 isThe big diameter holding cylindrical 4a is φ 50mm, and small end cylindrical 4b is coaxial with big end cylindrical 4a, axiality 0.03；
3, survey tool is prepared: verifying bench 1 and height vernier calliper 2, verifying bench 1 specification 400 × 400；
4, apotting spindle 3 is placed on verifying bench 1, the large end face 3c of apotting spindle 3 contacts with the work surface of verifying bench 1 downwards, the big end of lining 5 is assembled on apotting spindle 3, rotates lining 5, make the inner chamber conical surface 5a of lining 5 fully be fully contacted with the small end face 3b of apotting spindle 3；
5, alignment pin 4 is assemblied in the small end endoporus of lining 5；
6, height vernier calliper 2 is placed on verifying bench 1, mobile height vernier calliper 2, make the vernier 2a of height vernier calliper 2 be adjacent to the big end cylindrical 4a of alignment pin 4；
7, move down the vernier 2a of height vernier calliper 2, make the male cone (strobilus masculinus) 5b of vernier 2a work surface contact lining 5, read height value L, L=83.5mm；
8, calculate: the spacing axial wall thickness dimension=L-l=83.5-80.1=3.4mm of variable cross-section.
Claims (1)
1. the spacing axial wall thickness dimension measuring method of variable cross-section inner cavity revolution body, it is characterised in that: it comprises the steps of
(1), prepare to measure axle: manufacture measurement and positioning axle (3) according to the size design of lining (5), apotting spindle (3) is step-like in three, stage casing cylindrical (3a) coordinates with the hole size of lining (5), length ratio lining (5) the long 4-8mm of apotting spindle (3), the external diameter of the small end face (3b) of apotting spindle (3) is equal with the radial direction locating dimension of lining (5) tested variable cross-section, the overall length I of record location axle (3)；
(2), alignment pin (4) is prepared: the size design alignment pin (4) according to lining (5), alignment pin (4) is step-like in two, the small end cylindrical (4b) of alignment pin (4) and lining (5) small end inner hole, the short 2-3mm of hole length in length ratio lining (5) small end of alignment pin (4) small end cylindrical (4b), alignment pin (4) holds greatly cylindrical (4a) diameter equal with the radial direction locating dimension of lining (5)；
(3), survey tool is prepared: verifying bench (1) and height vernier calliper (2)；
(4), apotting spindle (3) is placed on verifying bench (1), the large end face (3c) of apotting spindle (3) contacts with the work surface of verifying bench (1) downwards, the big end of lining (5) is fitted down on apotting spindle (3), rotate lining (5), make the inner chamber conical surface (5a) of lining (5) fully be fully contacted with the small end face (3b) of apotting spindle (3)；
(5), alignment pin (4) is assemblied in the small end endoporus of lining (5)；
(6), height vernier calliper (2) is placed on verifying bench (1), mobile height vernier calliper (2), makes what the vernier (2a) of height vernier calliper (2) was adjacent to alignment pin (4) to hold greatly cylindrical (4a)；
(7), move down the vernier (2a) of height vernier calliper (2), make the male cone (strobilus masculinus) (5b) of vernier (2a) work surface contact lining (5), read height value L；
(8) lining (5) non-uniform shaft, is calculated to wall thickness dimension=L-l.
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| CN201210578856.8A CN103063109B (en) | 2012-12-27 | 2012-12-27 | The spacing axial wall thickness dimension measuring method of variable cross-section inner cavity revolution body |
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| CN201210578856.8A CN103063109B (en) | 2012-12-27 | 2012-12-27 | The spacing axial wall thickness dimension measuring method of variable cross-section inner cavity revolution body |
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| CN103063109B true CN103063109B (en) | 2016-07-06 |
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| CN104457502A (en) * | 2014-12-15 | 2015-03-25 | 苏州工业职业技术学院 | Semi-automatic workpiece thickness rapid detection jig |
| CN105423842A (en) * | 2015-11-28 | 2016-03-23 | 贵州黎阳航空动力有限公司 | Measurement method for axial dimension of diameter-limiting cross section of inner cavity of miniature part |
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| CN2125137U (en) * | 1992-02-26 | 1992-12-16 | 沈阳航空工业学院 | Ladder perspective match plate for detection axial variable cross-section |
| US5297434A (en) * | 1991-01-22 | 1994-03-29 | Stell Karl Wilhelm | Method of and apparatus for measuring workpieces |
| CN2852044Y (en) * | 2005-12-07 | 2006-12-27 | 长安汽车（集团）有限责任公司 | Apparatus for detecting cast profiled hole surface wall thickness |
| CN1887516A (en) * | 2006-07-21 | 2007-01-03 | 成都工具研究所 | Double-sided contact clamping method of tool system |
| CN201255624Y (en) * | 2008-09-12 | 2009-06-10 | 河南省中原内配股份有限公司 | Wall thickness difference detection tool |
| CN101571378A (en) * | 2009-06-16 | 2009-11-04 | 北京理工大学 | Measurement method of axial size of abrupt-change cross section of revolving body |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1162227B1 (en) * | 1999-12-28 | 2008-06-18 | Teijin Limited | Polyester film roll |
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Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5297434A (en) * | 1991-01-22 | 1994-03-29 | Stell Karl Wilhelm | Method of and apparatus for measuring workpieces |
| CN2125137U (en) * | 1992-02-26 | 1992-12-16 | 沈阳航空工业学院 | Ladder perspective match plate for detection axial variable cross-section |
| CN2852044Y (en) * | 2005-12-07 | 2006-12-27 | 长安汽车（集团）有限责任公司 | Apparatus for detecting cast profiled hole surface wall thickness |
| CN1887516A (en) * | 2006-07-21 | 2007-01-03 | 成都工具研究所 | Double-sided contact clamping method of tool system |
| CN201255624Y (en) * | 2008-09-12 | 2009-06-10 | 河南省中原内配股份有限公司 | Wall thickness difference detection tool |
| CN101571378A (en) * | 2009-06-16 | 2009-11-04 | 北京理工大学 | Measurement method of axial size of abrupt-change cross section of revolving body |
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Address after: 550014 No. 1111 Liyang Road, Baiyun District, Guiyang City, Guizhou Province Patentee after: Chinese Hangfa Guizhou Liyang aero Power Co. Ltd. Address before: 561102 Science and Technology Management Department of 5 Mailbox in Pingba County, Guizhou Province Patentee before: Guizhou Liyang Aerospace Power Co., Ltd. |
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