CN103105155B - Symmetry degree Measuring method of ball valve two end faces - Google Patents
Symmetry degree Measuring method of ball valve two end faces Download PDFInfo
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- CN103105155B CN103105155B CN201310040196.2A CN201310040196A CN103105155B CN 103105155 B CN103105155 B CN 103105155B CN 201310040196 A CN201310040196 A CN 201310040196A CN 103105155 B CN103105155 B CN 103105155B
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Abstract
Provided is a symmetry degree measuring method of ball valve two end faces. An A face and a B face are machined on two end faces of a ball valve (7) . A measuring device comprises a measuring platform (1), a compressing bolt (2), a V-shaped block (3), a measuring meter (4), cushion blocks (5) with various heights and a meter seat (6). The symmetry degree measuring method of ball valve two end faces comprises the following steps: fixing measuring meter with a journey equaling to or larger than R minusing half H on a fixing meter seat through the compressing bolt, placing the ball valve of 2R inside the V-shaped block and enabling the A face and the B face of the ball valve to be in a mutual parallel mode with a symmetrical center line through the cushion blocks with various heights, the parallel mode reading out a basic value H 0 through a maximum retraction quantity. Measured and calculated symmetrical values of the A face and the B face being respectively delta HA equalling to H0 minus HA and delta HB equalling to H0 minus HB. If delta HA equals to delta HB, the A face and the B face are symmetrical corresponding to the ball valve center line. If delta HA is larger or smaller than delta HB, the A face and the B face are asymmetrical. The symmetry degree measuring method of ball valve two end faces is simple, convenient, fast and accurate.
Description
Technical field
The invention belongs to field of measuring technique, especially a kind of measuring method of ball valve both ends of the surface symmetry.
Background technology
The structure of ball valve as shown in Figure 1, the both ends of the surface of ball valve 7 have A face and B face, A face is parallel to B face, center line between A face and B face and along ball valve 7 is configured with through hole, A face is H to the width in B face, when A face must all equal H/2 with B face to the distance of ball valve center line to the distance of ball valve center line, A face and B mask have symmetry to the guiding groove 7.1 of guarantee aft-loaded airfoil relatively, if described distance is not equal to H/2 or described range deviation is comparatively large, guiding groove 7.1 relatively A face and B face does not just have symmetry.
Because ball valve 7 is applied on the slide of automobile, train, motor-car or aircraft, the symmetry in the relative A face of guiding groove 7.1 and B face is higher, then the unlatching flexibility ratio of described slide is higher, otherwise when guiding groove 7.1 transition deflection A face or side, B face, described slide will be made to be stuck, and the consequence of generation is serious.
Therefore before undressed guiding groove 7.1, usually need to make measurement to the symmetry of A face ball valve center line relative to B face, although the line of guiding groove 7.1 is determined according to ball valve center line with processing, but only have A face higher relative to the symmetry of ball valve center line with B face, the symmetry in the relative A face of guarantee guiding groove 7.1 and B face is higher.
Summary of the invention
For measuring the symmetry in ball valve A face and B face, the invention provides a kind of measuring method of ball valve both ends of the surface symmetry, this measuring method is suitable for the such as ball symmetry with both ends of the surface and measures very much, and measuring method is easy, quick, accurate.
For achieving the above object, the present invention adopts following technical scheme:
A measuring method for ball valve both ends of the surface symmetry, the diameter of given ball valve is 2R, and described R is the radius of ball valve, and the both ends of the surface of ball valve have processed A face and B face, and A face is parallel to B face, and A face is H to the width in B face, survey table has table bar and contact, and the diameter d of described table bar is given, the stroke >=R-H/2 of described contact, first make V-block, the symcenter of V-block has splayed groove makes the bottom surface, lower end of V-block be divided into left support and right support, described left support is not only parallel but also contour relative to the upper surface of V-block with described right support, described left support and described right support lie on scaffold tower, the ball valve of different described 2R can be held in the region that described splayed groove and scaffold tower are formed jointly, the symmetrical center line of V-block is provided with through hole, the diameter of described through hole mates with described d, gauge stand is fixed by screw in the upper surface of V-block, the center-hole diameter of gauge stand mates with described through-hole diameter and overlaps, measuring method of the present invention is as follows:
First the survey table of described stroke>=R-H/2 to be arranged in described center pit and to fix described table bar by hold-down bolt, being put into by the ball valve of 2R in described splayed groove and to make the A face of ball valve and B face and described symmetrical center line be in the state of being parallel to each other by the differing heights cushion block that scaffold tower configures, described parastate can by the maximum amount of recovery of described contact and by surveying the upper measured value H read of table
0reflect, described H
0be exactly the basic value of ball valve when described 2R position;
When measuring A face first by A in the face of accurate described through hole, the differing heights cushion block liner that scaffold tower configures is in B face and make the described 2R limit of ball valve contact the both sides of described splayed groove, because the upper and lower surface of differing heights cushion block is parallel to each other with described left support and described right support respectively, therefore the center line of A face and B face and described through hole is orthogonal, and now described contact acts on the measured value H of maximum extension amount by survey table reads in A face
areflect, described H
0-described H
a=▽ H
a, described ▽ H
ait is exactly the symmetry value that A planar survey calculates;
In like manner, when measuring B face first by B in the face of accurate described through hole, the differing heights cushion block liner that scaffold tower configures is in A face and make the described 2R limit of ball valve contact the both sides of described splayed groove, because the upper and lower surface of differing heights cushion block is parallel to each other with described left support and described right support respectively, therefore the center line of A face and B face and described through hole is also orthogonal, and now described contact acts on the measured value H of maximum extension amount by survey table reads in B face
breflect, described H
0-described H
b=▽ H
b, described ▽ H
bit is exactly the symmetry value that B planar survey calculates;
By described ▽ H
awith described ▽ H
bcompare, as described ▽ H
a=described ▽ H
b, illustrate that A face and B face are symmetrical relative to ball valve center line; As described ▽ H
abe greater than or be less than described ▽ H
b, illustrate that A face and B face are asymmetric relative to ball valve center line.
The angle of splayed groove described above controls: 45 °≤described angle≤90 °.
Owing to adopting technical scheme described above, the present invention produces following good effect:
1, measuring method of the present invention is suitable for the such as ball symmetry measurement with both ends of the surface very much, measuring method is easy, quick, accurate, when ball valve both ends of the surface have A face and B face, A face equals B face to the distance of ball valve center line and just has equal symmetry to its both ends of the surface during the distance of ball valve center line, only have A face higher relative to the symmetry of ball valve center line with B face, guarantee ball valve guiding groove is higher relative to the symmetry in A face and B face.
2, its structure of measuring method of the present invention is simple, and easy to operate, function easily realizes, and measuring accuracy is high, and can detect the symmetry of ball valve both ends of the surface in enormous quantities fast, measurement mechanism is easy to carry.
Accompanying drawing explanation
Fig. 1 is the structural representation sketch of ball valve.
Fig. 2 is the measuring method structural representation sketch of ball valve both ends of the surface symmetry.
In above-mentioned figure: 1-scaffold tower; 2-hold-down bolt; 3-V type block; 4-surveys table; 5-differing heights cushion block; 6-gauge stand; 7-ball valve; 7.1-guiding groove.
Embodiment
The present invention is a kind of measuring method of ball valve both ends of the surface symmetry, composition graphs 1, ball valve 7 both ends of the surface refer to A face and B face, A face equals B face to the distance of ball valve center line and just has equal symmetry to its both ends of the surface during the distance of ball valve center line, only have A face higher relative to the symmetry of ball valve center line with B face, the symmetry in the relative A face of guarantee guiding groove 7.1 and B face is higher, therefore measuring method of the present invention is suitable for the such as ball symmetry measurement with both ends of the surface very much, and measuring method is easy, quick, accurate.
Can explain the present invention in more detail by the following examples, the present invention is not limited to the following examples, discloses object of the present invention and is intended to protect all changes and improvements in the scope of the invention.
Composition graphs 1, the diameter of given ball valve 7 is 2R, and described R is the radius of ball valve, and the both ends of the surface of ball valve 7 have processed A face and B face, and A face is parallel to B face, and A face is H to the width in B face; Survey table 4 has table bar and contact, and the diameter d of described table bar is given, the stroke >=R-H/2 of described contact.
Composition graphs 2, first make V-block 3, the symcenter of V-block 3 has splayed groove makes the bottom surface, lower end of V-block be divided into left support and right support, described left support is not only parallel but also contour relative to the upper surface of V-block with described right support, described left support and described right support lie on scaffold tower 1, the ball valve 7 of different described 2R can be held in the region that described splayed groove and scaffold tower 1 are formed jointly, the symmetrical center line of V-block 3 is provided with through hole, the diameter of described through hole mates with described d, gauge stand 6 is fixed by screw in the upper surface of V-block 3, the center-hole diameter of gauge stand 6 mates with described through-hole diameter and overlaps.Above-mentioned scaffold tower 1, V-block 3, gauge stand 6 and following hold-down bolt 2, survey table 4, differing heights cushion block 5 form measurement mechanism of the present invention.
Composition graphs 2, measuring method of the present invention is as follows:
First the survey table 4 of described stroke>=R-H/2 to be arranged in described center pit and to fix described table bar by hold-down bolt 2, being put into by the ball valve 7 of 2R in described splayed groove and to make the A face of ball valve 7 and B face and described symmetrical center line be in the state of being parallel to each other by the differing heights cushion block 5 of configuration on scaffold tower 1, described parastate can measured value H by the maximum amount of recovery of described contact and by surveying the upper reading of table
0reflect, described H
0be exactly the basic value of ball valve 7 when described 2R position.
The angle of described splayed groove controls: 45 °≤described angle≤90 °, according to actual measured conditions, the angle of described splayed groove is relevant to the diameter 2R of ball valve 7,2R is larger, and the angle of described splayed groove should be selected larger, and 2R is less, and the angle of described splayed groove should be selected less.When the angle of described splayed groove is determined, the ball valve 7 of certain 2R scope can use a V-block 3 jointly, and V-block 3 has versatility widely, lays a good foundation to the Quick Measurement of batch ball valve 7.
When measuring A face first by A in the face of accurate described through hole, on scaffold tower 1, differing heights cushion block 5 liner of configuration makes the described 2R limit of ball valve 7 contact the both sides of described splayed groove in B face, because the upper and lower surface of differing heights cushion block 5 is parallel to each other with described left support and described right support respectively, therefore the center line of A face and B face and described through hole is orthogonal, and now described contact acts on the measured value H of maximum extension amount by survey table 4 reads in A face
areflect, described H
0-described H
a=▽ H
a, described ▽ H
ait is exactly the symmetry value that A planar survey calculates.
In like manner, when measuring B face first by B in the face of accurate described through hole, on scaffold tower 1, differing heights cushion block 5 liner of configuration makes the described 2R limit of ball valve 7 contact the both sides of described splayed groove in A face, because the upper and lower surface of differing heights cushion block 5 is parallel to each other with described left support and described right support respectively, therefore the center line of A face and B face and described through hole is also orthogonal, and now described contact acts on the measured value H of maximum extension amount by survey table reads in B face
breflect, described H
0-described H
b=▽ H
b, described ▽ H
bit is exactly the symmetry value that B planar survey calculates.
Differing heights cushion block 5 can be a cushion block, also can be several cushion block, such as height is divided into 5 ㎜, 4.8 ㎜, 4.6 ㎜ by series ... 0.6 ㎜ etc., when the gasket height of a cushion block is not enough to make the 2R limit of ball valve to contact the both sides of described splayed groove, the cushion block that available several height does not wait superposes.
By described ▽ H
awith described ▽ H
bcompare, as described ▽ H
a=described ▽ H
b, illustrate that A face and B face are symmetrical relative to ball valve center line; As described ▽ H
abe greater than or be less than described ▽ H
b, illustrate that A face and B face are asymmetric relative to ball valve center line.
The embodiment selected in this article in order to open object of the present invention, currently thinks to be suitable for, but it is to be understood that the present invention is intended to comprise all changes belonging to the embodiment in this design and the scope of the invention and improvement.
Claims (2)
1. a measuring method for ball valve both ends of the surface symmetry, the diameter of given ball valve (7) is 2R, and described R is the radius of ball valve, and the both ends of the surface of ball valve (7) have processed A face and B face, and A face is parallel to B face, and A face is H to the width in B face, survey table (4) and have table bar and contact, the diameter d of described table bar is given, the stroke >=R-H/2 of described contact, first make V-block (3), the symcenter of V-block (3) has splayed groove makes the bottom surface, lower end of V-block (3) be divided into left support and right support, described left support is not only parallel but also contour relative to the upper surface of V-block (3) with described right support, described left support and described right support lie on scaffold tower (1), the ball valve (7) of different described 2R can be held in the region that described splayed groove and scaffold tower (1) are formed jointly, the symmetrical center line of V-block (3) is provided with through hole, the diameter of described through hole mates with described d, gauge stand is fixed by screw in the upper surface of V-block (3), the center-hole diameter of gauge stand (6) mates with described through-hole diameter and overlaps, it is characterized in that:
First the survey table (4) of described stroke>=R-H/2 to be arranged in described center pit and by the fixing described table bar of hold-down bolt (2), being put into by the ball valve (7) of 2R in described splayed groove and to make the A face of ball valve (7) and B face and described symmetrical center line be in the state of being parallel to each other by the differing heights cushion block (5) of the upper configuration of scaffold tower (1), described parastate can measured value H by the maximum amount of recovery of described contact and by surveying the upper reading of table (4)
0reflect, described H
0be exactly the basic value of ball valve (7) when described 2R position;
When measuring A face first by A in the face of accurate described through hole, differing heights cushion block (5) liner of the upper configuration of scaffold tower (1) is in B face and make the described 2R limit of ball valve (7) contact the both sides of described splayed groove, because the upper and lower surface of differing heights cushion block is parallel to each other with described left support and described right support respectively, therefore the center line of A face and B face and described through hole is orthogonal, and now described contact acts on the maximum extension amount in A face by the upper measured value H read of survey table (4)
areflect, described H
0-described H
a=▽ H
a, described ▽ H
ait is exactly the symmetry value that A planar survey calculates;
In like manner, when measuring B face first by B in the face of accurate described through hole, differing heights cushion block (5) liner of the upper configuration of scaffold tower (1) is in A face and make the described 2R limit of ball valve (7) contact the both sides of described splayed groove, because the upper and lower surface of differing heights cushion block (5) is parallel to each other with described left support and described right support respectively, therefore the center line of A face and B face and described through hole is also orthogonal, and now described contact acts on the maximum extension amount in B face by the upper measured value H read of survey table (4)
breflect, described H
0-described H
b=▽ H
b, described ▽ H
bit is exactly the symmetry value that B planar survey calculates;
By described ▽ H
awith described ▽ H
bcompare, as described ▽ H
a=described ▽ H
b, illustrate that A face and B face are symmetrical relative to ball valve center line; As described ▽ H
abe greater than or be less than described ▽ H
b, illustrate that A face and B face are asymmetric relative to ball valve center line.
2. the measuring method of a kind of ball valve both ends of the surface symmetry according to claim 1, is characterized in that: the angle of described splayed groove controls: 45 °≤described angle≤90 °.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310040196.2A CN103105155B (en) | 2013-02-01 | 2013-02-01 | Symmetry degree Measuring method of ball valve two end faces |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310040196.2A CN103105155B (en) | 2013-02-01 | 2013-02-01 | Symmetry degree Measuring method of ball valve two end faces |
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| CN103105155B true CN103105155B (en) | 2015-06-24 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110108194A (en) * | 2019-04-30 | 2019-08-09 | 广州雅新金属制品有限公司 | The measurement method of crankshaft symmetry |
| CN110953952B (en) * | 2019-12-03 | 2021-07-02 | 杭州电子科技大学 | Geometric element size and position simulation device and method based on tolerance |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2134404C1 (en) * | 1998-10-19 | 1999-08-10 | Общество с ограниченной ответственностью "ТЕХНОМАШ" | Superposed roundness gage |
| CN201069350Y (en) * | 2007-07-30 | 2008-06-04 | 利达光电股份有限公司 | Symmetry detection device for optical part |
| CN201193942Y (en) * | 2008-04-17 | 2009-02-11 | 程钢 | Cylinder measuring apparatus |
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2013
- 2013-02-01 CN CN201310040196.2A patent/CN103105155B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2134404C1 (en) * | 1998-10-19 | 1999-08-10 | Общество с ограниченной ответственностью "ТЕХНОМАШ" | Superposed roundness gage |
| CN201069350Y (en) * | 2007-07-30 | 2008-06-04 | 利达光电股份有限公司 | Symmetry detection device for optical part |
| CN201193942Y (en) * | 2008-04-17 | 2009-02-11 | 程钢 | Cylinder measuring apparatus |
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Effective date of registration: 20180509 Address after: 471000 No. 1 axis research road, Jianxi science and Technology Industrial Park, Luoyang, Henan Patentee after: Luoyang Bearing Research Institute Address before: 471039 Fenghua Road 6, hi tech Development Zone, Luoyang, Henan. Patentee before: Zhouyan Science and Technology Co., Ltd., Luoyang |
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