CN103063109A - Limiting axial wall thickness dimensional measurement method of variable cross-section inner cavity revolution body - Google Patents
Limiting axial wall thickness dimensional measurement method of variable cross-section inner cavity revolution body Download PDFInfo
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- CN103063109A CN103063109A CN2012105788568A CN201210578856A CN103063109A CN 103063109 A CN103063109 A CN 103063109A CN 2012105788568 A CN2012105788568 A CN 2012105788568A CN 201210578856 A CN201210578856 A CN 201210578856A CN 103063109 A CN103063109 A CN 103063109A
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- small end
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Abstract
The invention discloses a limiting axial wall thickness dimensional measurement method of a variable cross-section inner cavity revolution body. The measurement method comprises the steps of preparing for a measuring mandril, preparing for a locating pin, preparing a measuring tool, placing a locating mandril on a test platform, enabling a big end face of the locating mandril to face downward and contact a work surface of the test platform, assembling a big end of a bushing downwards on the locating mandril, rotating the bushing, enabling an inner cavity conical surface of the bushing to be completely in contact with a small end face of the locating mandril, and the like. The measurement method has the advantages of being simple, accurate, convenient and rapid, and high in detection efficiency; measuring can be carried out on a processing site, an operator can command processing conditions in time and adjusts technological parameters; and the measurement method is particularly suitable for mass production and high in work efficiency.
Description
Technical field
The present invention relates to the limit shaft of variable cross section inner chamber solid of revolution to the wall thickness dimension measuring method, belong to field of measuring technique.
Background technology
The method that checks wall thickness in the industry usually adopts wall thickness vernier caliper measurement, wall thickness calipers or measures with three-dimensional.Wall thickness calliper, wall thickness calipers such as are only applicable at the wall thickness and the wall thickness dimension requirement is the detection of normal orientation, and can't detect the wall thickness of variable cross section, because with the wall thickness vernier caliper measurement, when wall thickness calipers checks wall thickness, can't realize radially spacing, simultaneously card base contacts with measured and produces ergometry, the direction that ergometry will make card base reduce along wall thickness is slided, and causes the error measured excessive; Repeatedly measure, its result differs 1mm.Although can accurately detect the variable cross section limit shaft to wall thickness dimension with three-dimensional, there are many deficiencies in three-dimensional coordinates measurement, 1, measuring accuracy is superfluous, the wasting of resources; 2, be not suitable for the detection of part in enormous quantities, 3, surveying work station and processing is not or not same place of working, cause the part turnover, increase cost, 4, process part in enormous quantities, tool wear will cause the variation of processing dimension, if the untimely detection of part, the operator just can not in time grasp the dynamic situation of processing, also just can not in time adjust working process parameter and guarantees that processing parts is qualified.
Summary of the invention
The object of the present invention is to provide the limit shaft of variable cross section inner chamber solid of revolution to the wall thickness dimension measuring method, the operator is measured in accurate, the convenient, fast enforcement of processing site, grasp the situation of change of processing, in time the adjusting process parameter guarantees that processing dimension is qualified.
The objective of the invention is to be achieved through the following technical solutions: the limit shaft of variable cross section inner chamber solid of revolution is to the wall thickness dimension measuring method, and it comprises following steps:
(1), prepare to measure axle: the size design according to lining is made the measurement and positioning axle, it is three step-like that locator mandrel is, the endoporus dimensional fits of stage casing cylindrical and lining, the long 4-8mm of Length Ratio lining of locator mandrel, the external diameter of the small end of locator mandrel equates the overall length l of record location axle with the radially locating dimension of the tested variable cross section of lining;
(2), prepare register pin: according to the size design register pin of lining, it is two step-like that register pin is, the small end cylindrical of register pin cooperates with lining small end endoporus, the short 2-3mm of hole length in the length of register pin small end cylindrical and the lining small end, the large end outside diameter of register pin equates with the radially locating dimension of the tested variable cross section of lining;
(3), prepare survey instrument: verifying bench and height vernier calliper;
(4), locator mandrel is placed on the verifying bench, the large end face of locator mandrel contacts with the workplace of verifying bench downwards, with being assembled on the locator mandrel to the lower end greatly of lining, rotate lining, the inner chamber conical surface of lining is fully fully contacted with the small end face of locator mandrel;
(5), register pin is assemblied in the small end endoporus of lining;
(6), height vernier calliper is placed on the verifying bench, mobile height vernier calliper makes the vernier of height vernier calliper be adjacent to the large end cylindrical of register pin;
(7), move down the vernier of height vernier calliper, make the male cone (strobilus masculinus) of vernier workplace contact lining, read height value L;
(8), calculate lining variable cross section limit shaft to wall thickness dimension=L-l.
Beneficial effect of the present invention is: (1), measuring method are simple, accurate, convenient, and detection efficiency is high; (2), measure and can implement at processing site, the operator can in time grasp machining status, and technological parameter is implemented to adjust; (3), be particularly useful for the batch production, work efficiency is higher.
Description of drawings
Fig. 1 is the structural representation of locator mandrel of the present invention;
Fig. 2 is the structural representation of register pin of the present invention;
Fig. 3 is that the present invention uses synoptic diagram;
Fig. 4 is the structural representation of lining to be measured.
Wherein, 1-verifying bench, 2-height vernier calliper, 2a-vernier, 3-locator mandrel, 3a-stage casing cylindrical, 3b-small end, the large end of 3c-, 3d-outer groove, 4-register pin, the large end cylindrical of 4a-, 4b-small end cylindrical, 5-lining, the 5a-inner chamber conical surface, 5b-male cone (strobilus masculinus).
Embodiment
Further describe technical scheme of the present invention below in conjunction with accompanying drawing, but that claimed scope is not limited to is described.
The limit shaft of variable cross section inner chamber solid of revolution is to the wall thickness dimension measuring method, and it comprises following steps:
(1), prepare to measure axle: the size design according to lining 5 is made measurement and positioning axle 3, such as Fig. 1, it is three step-like that locator mandrel 3 is, the endoporus dimensional fits of stage casing cylindrical 3a and lining 5, and guarantee tolerance clearance 0.03, and the Length Ratio lining 5 long 4-8mm of locator mandrel 3, the external diameter of locator mandrel 3 small end 3b equates with the radially locating dimension of lining 5 tested variable cross sections, guarantee the end face and the depth of parallelism 0.03 of holding greatly the end face of 3c, the overall length l of record location axle 3 of the small end 3b of locator mandrel 3;
(2), prepare register pin 4: according to the size design register pin 4 of lining 5, such as Fig. 2, it is two step-like that register pin 4 is, the small end cylindrical 4b of register pin 4 cooperates with lining 5 small end endoporus, guarantee tolerance clearance 0.03, the short 2-3mm of hole length in the length of register pin 4 small end cylindrical 4b and lining 5 small ends, register pin 4 large end cylindrical 4a diameters equate that with the radially locating dimension of lining 5 tested variable cross sections small end cylindrical 4b and large end cylindrical 4a guarantee right alignment 0.03;
(3), prepare survey instrument: verifying bench 1 and height vernier calliper 2;
(4), such as Fig. 3, locator mandrel 3 is placed on the verifying bench 1, the large end face 3a of locator mandrel 3 contacts with the workplace of verifying bench 1 downwards, the large end of lining 5 is assembled on the locator mandrel 3, rotate lining 5, the inner chamber conical surface 5a of lining 5 is fully fully contacted with the small end face 3b of locator mandrel 3;
(5), register pin 4 is assemblied in the small end endoporus of lining 5;
(6), height vernier calliper 2 is placed on the verifying bench 1, mobile height vernier calliper 2 makes the vernier 2a of height vernier calliper 2 be adjacent to the large end cylindrical 4a of register pin 4;
(7), move down the vernier 2a of height vernier calliper 2, make the male cone (strobilus masculinus) 5b of vernier 2a workplace contact lining 5, read height value L;
(8), calculate lining 5 variable cross section limit shafts to wall thickness dimension=L-l.
Such as Fig. 4, lining 5 inner chamber bottom inner conical surface 5a become 15 ° with vertical direction, male cone (strobilus masculinus) 5b becomes 22 ° of conical surfaces with vertical direction, inside and outside conical surface angle does not wait, and has formed the variable cross section cone, and namely axial wall thickness changes with the variation of radial position size, non-uniform shaft is 3.3 ± 0.3mm to wall thickness dimension on the design code radial position φ 50, now utilizes measuring method of the present invention, and the process that this lining inner chamber variable cross section limit shaft is measured to wall thickness dimension is as follows:
1, manufacture and design the measurement axle: axle 3 is measured in the size design manufacturing according to lining 5, measures axle, and 3 stage casing cylindrical 3a is
The middle part of stage casing cylindrical 3a is designed to the outer groove 3d of discontinuity, small end 3b external diameter is φ 50mm, design one end face inner bore in the middle of the small end 3b end face, interior hole dimension φ 45mm, for detection of the time prevent from interfering with lining inner chamber bottom, the depth of parallelism 0.03 of large small end face, axle 3 overall length size l=80.1mm are measured in actual measurement after the processing completion;
2, manufacture and design register pin: according to the size design register pin 4 of lining 5, the diameter of the small end cylindrical 4b of register pin 4 is
The diameter of large end cylindrical 4a is φ 50mm, and small end cylindrical 4b is coaxial with large end cylindrical 4a, right alignment 0.03;
3, prepare survey instrument: verifying bench 1 and height vernier calliper 2, verifying bench 1 specification 400 * 400;
4, locator mandrel 3 is placed on the verifying bench 1, the large end face 3a of locator mandrel 3 contacts with the workplace of verifying bench 1 downwards, the large end of lining 5 is assembled on the locator mandrel 3, rotates lining 5, the inner chamber conical surface 5a of lining 5 is fully fully contacted with the small end face 3b of locator mandrel 3;
5, register pin 4 is assemblied in the small end endoporus of lining 5;
6, height vernier calliper 2 is placed on the verifying bench 1, mobile height vernier calliper 2 makes the vernier 2a of height vernier calliper 2 be adjacent to the large end cylindrical 4a of register pin 4;
7, move down the vernier 2a of height vernier calliper 2, make the male cone (strobilus masculinus) 5b of vernier 2a workplace contact lining 5, read height value L, L=83.5mm;
8, calculate: the variable cross section limit shaft is to wall thickness dimension=L-l=83.5-80.1=3.4mm.
Claims (1)
1. the limit shaft of variable cross section inner chamber solid of revolution is characterized in that to the wall thickness dimension measuring method: it comprises following steps:
(1), prepare to measure axle: the size design according to lining (5) is made measurement and positioning axle (3), it is three step-like that locator mandrel (3) is, the endoporus dimensional fits of stage casing cylindrical (3a) and lining (5), the long 4-8mm of Length Ratio lining (5) of locator mandrel (3), the external diameter of the small end (3b) of locator mandrel (3) equates the overall length l of record location axle (3) with the radially locating dimension of the tested variable cross section of lining (5);
(2), prepare register pin (4): according to the size design register pin (4) of lining (5), it is two step-like that register pin (4) is, the small end cylindrical (4b) of register pin (4) cooperates with lining (5) small end endoporus, the short 2-3mm of hole length in the length of register pin (4) small end cylindrical (4b) and lining (5) small end, register pin (4) holds greatly cylindrical (4a) diameter to equate with the radially locating dimension of lining (5);
(3), prepare survey instrument: verifying bench (1) and height vernier calliper (2);
(4), locator mandrel (3) is placed on the verifying bench (1), the large end face (3a) of locator mandrel (3) contacts with the workplace of verifying bench (1) downwards, the large end of lining (5) is assembled to downwards on the locator mandrel (3), rotate lining (5), the inner chamber conical surface (5a) of lining (5) is fully fully contacted with the small end face (3b) of locator mandrel (3);
(5), register pin (4) is assemblied in the small end endoporus of lining (5);
(6), height vernier calliper (2) is placed on the verifying bench (1), mobile height vernier calliper (2) makes the vernier (2a) of height vernier calliper (2) be adjacent to the large end cylindrical (4a) of register pin (4);
(7), move down the vernier (2a) of height vernier calliper (2), make the male cone (strobilus masculinus) (5b) of vernier (2a) workplace contact lining (5), read height value L;
(8), calculate lining (5) non-uniform shaft 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 CN103063109B (en) | 2016-07-06 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| US20040197509A1 (en) * | 1999-12-28 | 2004-10-07 | Ieyasu Kobayashi | Polyester film roll |
| 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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2012
- 2012-12-27 CN CN201210578856.8A patent/CN103063109B/en active Active
Patent Citations (7)
| 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 |
| US20040197509A1 (en) * | 1999-12-28 | 2004-10-07 | Ieyasu Kobayashi | Polyester film roll |
| 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 |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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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| CN103063109B (en) | 2016-07-06 |
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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. |