CN1755324A - Pneumatic instrument for measuring inside diameter of thin-wall bearing - Google Patents
Pneumatic instrument for measuring inside diameter of thin-wall bearing Download PDFInfo
- Publication number
- CN1755324A CN1755324A CN 200410060559 CN200410060559A CN1755324A CN 1755324 A CN1755324 A CN 1755324A CN 200410060559 CN200410060559 CN 200410060559 CN 200410060559 A CN200410060559 A CN 200410060559A CN 1755324 A CN1755324 A CN 1755324A
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- China
- Prior art keywords
- rotating disc
- internal diameter
- gauge head
- bearing ring
- nozzle
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Abstract
The invention discloses a bearing ring optical density air gauge which comprises an electric translator (11), an electric display (12) and a air measurer(2) which adopts a column structure and is arranged on a measuring device; it inlets the condensed air through the grouter(8) of the air measurer(2) into the inner bearing ring (1)optical density, the air measurer(2) can use the electric translator (11) to change and use the electric display (12) to display the measuring value by the change of the length value of the draft force.
Description
Affiliated technical field
The invention belongs to a kind of bearing bore diameter measurement mechanism, relate generally to a kind of middle-size and small-size thin-wall bearing ferrule internal diameter pneumatic measuring instrument.
Background technology:
Present middle-size and small-size bearing ring wall thickness thinnest part has only 0.275mm, and thin-wall bearing ferrule size and form and position tolerance very easily produce distortion when adopting traditional mechanical gage to measure, and can't effectively measure; And (be generally 120～200g) influence, measured surface easily produces the survey trace, influences the measured workpiece surface quality, and this problem is an a great problem in bearing processing and even mechanical industry owing to ergometry.Particularly influence is particularly outstanding in the production run of military project bearing ring, and it has special technical requirement to the flexible bearing lasso: the internal diameter of control fabricated part and the mean value of external diameter.To this, still there is not effective measuring method at present.
Summary of the invention:
The purpose of this invention is to provide a kind of thin-wall bearing ferrule internal diameter pneumatic measuring instrument, it can be effectively, accurately, easily the thin-wall bearing part is measured, and the surface of tested part does not scratch, and geometric configuration is indeformable.
Purpose of the present invention can adopt following technical scheme to realize: it mainly comprises pneumatic-to-current converter, electronic console and plug jet, plug jet adopts cylindrical structural, be placed on the measurement mechanism, circumferentially be evenly equipped with even number nozzle more than eight or eight at gauge head, it is pressurized air to be sprayed to by nozzle be enclosed within its outside bearing ring internal diameter, plug jet becomes stream pressure according to induction the variation of length value, change by pneumatic-to-current converter, and show measured value by electronic console.
Described measurement mechanism mainly comprises base, goes up rotating disc, lower rotating disc, lower rotating disc is enclosed within on the boss of gauge head bottom, last rotating disc is placed on the top of lower rotating disc, plug jet is positioned at upper and lower rotating disc, the outlet of gaging nozzle is positioned at the external diameter surface of gauge head, is provided with air flue in the gauge head, and nozzle is communicated with air flue, the lower end of air flue be connected with gas-tpe fitting on the base, gauge head connects pneumatic-to-current converter.
One back-up ring is set on lower rotating disc, and back-up ring top is enclosed within the rotating disc outside, and and last rotating disc relative fixed.
The present invention is that pneumatically is made medium according to the hydrostatics principle of hydrodynamics, utilizes the variation of compressed air gap size to compare measurement.Adopt the plug jet technical scheme of multi-nozzle, spilehole during measurement, the selection of nozzle is as follows:
When (1) selecting two at pneumatic gauging nozzle to be the subtend nozzle, its ergometry is:
f＝c×m×P
i
Wherein c is a percent break when working as S (measurement clearance)=0.02mm, gets c=0.6
M is for measuring influence area m=π r
2
R is the nozzle bore radius
P
iBe nozzle bore output pressure P
i=3Kgf/cm
2
When nozzle r=1mm=0.1cm,
F=0.6 * π * 0.1
2* 3=0.056Kg f=56gf, so big ergometry can make workpiece produce elastic deformation, so that can't measure, so to the pneumatic gauging of thin-wall bearing the time, utilize two gaging nozzles can't satisfy measurement requirement to the measurement of bearing bore diameter.
(2) consider the air-blast atomizer characteristic:
The air side flow of Q=S * 2 π r Q for from the gap of nozzle flapper, flowing out
S is a measurement clearance
If nozzle is set to four to (be circumferential eight, the nozzle bore radius is r
0) time, desire to make its conversion multiplying power dQ/dS and the equivalence of subtend nozzle, then:
2πr＝2π×4r
0
r
0Be the small nozzle pore radius
Therefore, r
0=r/4=0.25mm considers that nozzle is difficult for stopping up r
0Get the i.e. 0.03～0.04cm of 0.3～0.4mm.At this moment: nozzle ergometry f=c * m * P
i
＝0.6×π×0.03
2×3
≈0.005(Kgf)＝5(g)
Evidence is along under four pairs of nozzle stepless actions of plug jet circumferencial direction, the measuring error that the measurement distortion causes is not more than 0.0002mm, that is: formed an air cushion between gauge head and workpiece, made workpiece keep original state, the internal diameter of measuring is the mean value under the actual conditions.Below also provable when plug jet is provided with even number nozzle more than 8, can satisfy measurement requirement equally.
The present invention has mainly solved middle-size and small-size thin-walled (particularly flexible bearing) bearing completed products lasso internal diameter size problems of measurement as known from the above, it has following characteristics: gauge head adopts the nozzle more than 8 evenly to distribute, dynamometry little (＜20g), measured workpiece is indeformable, measured value is accurate.Because gauge head does not directly contact with measured surface, avoided measured surface to produce and surveyed trace.Because adopt non-cpntact measurement, gauge head does not does not wear and tear, the operating period limit for length.Pneumatic measuring instrument enlargement factor height, personal error is little, the measuring accuracy height.Can adopt flexible pipe to be connected between gauge head and pneumatic-to-current converter, the electron microscopic device, to realize the telemeasurement operation.Upper and lower rotating disc relatively rotates and can finely tune nozzle and measured workpiece relative position, can adjust the axial location of tested lasso.The instrument one-piece construction is simple, and is easy to operate.
Description of drawings:
Fig. 1 is a fundamental diagram of the present invention.
Fig. 2 is used to measure the structural representation of the measurement mechanism of lasso internal diameter for the present invention.
Among the figure 1, tested lasso, 2, plug jet, 3, back-up ring, 4, go up rotating disc, 5, lower rotating disc, 6, base, 7, outer tube joint, 8, gaging nozzle (8), 9, air flue, 10, inner pipe joint, 11, pneumatic-to-current converter, 12, electronic console, 13, amplifier, 14, driving circuit.
Embodiment
In conjunction with the accompanying drawings, specific embodiments of the invention are described.
As shown in Figure 1, it mainly comprises pneumatic-to-current converter (having now) 11, electronic console 12 (having now) and plug jet, plug jet adopts cylindrical structural, be placed on the measurement mechanism, in gauge head, circumferentially be evenly equipped with the even number nozzle 8 (present embodiment adopts eight) more than eight or eight, it is pressurized air to be sprayed to by nozzle be enclosed within its outside bearing ring 1 internal diameter, plug jet 2 becomes stream pressure according to induction the variation of length value, change by pneumatic-to-current converter 11, and make electronic console show measured value by amplifier 13 and driving circuit 14.
Measurement mechanism bag as shown in Figure 2 mainly comprises base 6, goes up rotating disc 4, lower rotating disc 5, and lower rotating disc 5 is placed on the boss of gauge head 2 bottoms, and last rotating disc 4 is placed on the lower rotating disc 5.Last rotating disc 4 is connected with back-up ring 3, and back-up ring 3 bottoms are enclosed within lower rotating disc 5 outsides.Gauge head 2 tops are cylindrical, are positioned at lower rotary table, and the bottom is a boss, are fixed on the base 6.Gaging nozzle 8 has eight, is distributed on 2 circumferential weeks of gauge head, and the outlet of gaging nozzle 8 is positioned at the gauge head external diameter surface, in the gauge head 2 air flue is set, and air flue is communicated with gaging nozzle 8 respectively, and the lower end of air flue is connected with the gas-tpe fitting 10 that gauge head 2 bottoms are provided with.Plug jet 2 becomes length value according to induction with stream pressure, changes by pneumatic-to-current converter, and shows measured value by the electron microscopic device.
During use, according to the following steps before the measurement: standard component is transferred naturally along plug jet 2, and the standard component datum end face well contacts with the gauge head locating surface; Rotation lower rotating disc 5 relatively rotates rotating disc 4 and lower rotating disc 5, thereby adjusts the axial location of tested lasso, makes tested place (avoiding chamfering) aim at gaging nozzle 8; Adjust aniseikon and make it show numerical value to zero-bit, preliminary work gets final product.
During measurement, tested lasso 1 is transferred naturally along plug jet 2, the tested part datum end face is well contacted, at this moment with the gauge head locating surface, the numerical value that shows on the electron beam dial gauge is the difference of tested lasso and standard component, thereby can draw the physical size of tested lasso internal diameter.
Claims (6)
1, a kind of bearing ring internal diameter pneumatic measuring instrument, comprise that pneumatic-to-current converter (11), electronic console (12) and plug jet (2) is characterized in that: plug jet (2) adopts cylindrical structural, be placed on the measurement mechanism, it is pressurized air to be sprayed to by the gaging nozzle (8) on the plug jet (2) be enclosed within its outside bearing ring (1) internal diameter, plug jet (2) becomes stream pressure according to induction the variation of length value, change by pneumatic-to-current converter (11), and show measured value by electronic console (12).
2, bearing ring internal diameter pneumatic measuring instrument according to claim 1, it is characterized in that: described measurement mechanism mainly comprises base (6), last rotating disc (4), lower rotating disc (5), lower rotating disc (5) is placed on the boss of gauge head (2) bottom, last rotating disc (4) is placed the top of lower rotating disc (5), plug jet (2) top is positioned at, in the lower rotating disc, bottom and base (6) are fixing, the outlet of gaging nozzle (8) is positioned at the external diameter surface of gauge head, be provided with air flue (9) in the gauge head, nozzle is communicated with air flue (9), the lower end of air flue with is connected gauge head connection pneumatic-to-current converter (11) with the gas-tpe fitting (10) of gauge head (2) bottom.
3, bearing ring internal diameter pneumatic measuring instrument according to claim 1 is characterized in that: connection one back-up ring (3) is set in last rotating disc periphery, and back-up ring (3) bottom is enclosed within lower rotating disc (5) outside,
4, bearing ring internal diameter pneumatic measuring instrument according to claim 1 is characterized in that: the gaging nozzle (8) on the plug jet (2) is the even number more than eight or eight, is distributed on a circumferential week of gauge head.
5, bearing ring internal diameter pneumatic measuring instrument according to claim 1, it is characterized in that: the radius of gaging nozzle (8) is 0.3～0.4mm.
6, bearing ring internal diameter pneumatic measuring instrument according to claim 1 or 5, it is characterized in that: the radius of gaging nozzle (8) is 0.3mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410060559 CN1755324A (en) | 2004-09-30 | 2004-09-30 | Pneumatic instrument for measuring inside diameter of thin-wall bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410060559 CN1755324A (en) | 2004-09-30 | 2004-09-30 | Pneumatic instrument for measuring inside diameter of thin-wall bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1755324A true CN1755324A (en) | 2006-04-05 |
Family
ID=36688760
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200410060559 Pending CN1755324A (en) | 2004-09-30 | 2004-09-30 | Pneumatic instrument for measuring inside diameter of thin-wall bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1755324A (en) |
Cited By (24)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103389053A (en) * | 2012-05-10 | 2013-11-13 | 上海云飞工贸发展有限公司 | Average inner diameter measuring instrument of cylinder body of compressor |
| CN103419131A (en) * | 2013-07-10 | 2013-12-04 | 温州华聚科技有限公司 | Adjuster of pneumatic measuring head |
| CN103486986A (en) * | 2013-08-26 | 2014-01-01 | 格林精密部件(苏州)有限公司 | Detection tool for detecting positional relations between valve bush oil grooves and basic hole |
| CN103499316A (en) * | 2013-08-26 | 2014-01-08 | 格林精密部件(苏州)有限公司 | Inspection device for detecting depth of oil grooves of valve sleeve |
| CN103499317A (en) * | 2013-08-26 | 2014-01-08 | 格林精密部件(苏州)有限公司 | Inspection device for detecting symmetry degree of oil grooves of valve sleeve |
| CN103499314A (en) * | 2013-08-26 | 2014-01-08 | 格林精密部件(苏州)有限公司 | Detection device of valve pocket oil groove |
| CN103737477A (en) * | 2013-12-25 | 2014-04-23 | 四川富临集团成都机床有限责任公司 | Method and device for measuring and automatically repairing cylindricity error for numerical control honing machine |
| CN104075672A (en) * | 2013-03-29 | 2014-10-01 | 日本活塞环株式会社 | Device and method for inspecting size of cylindrical object |
| CN104107807A (en) * | 2014-06-19 | 2014-10-22 | 杭州电子科技大学 | Pneumatic device for measuring internal diameter and external diameter of thin-wall bearing ring |
| CN104296699A (en) * | 2014-11-05 | 2015-01-21 | 烟台思科博量仪有限公司 | Measuring device for one-way bearing inner ring center distance |
| CN105004288A (en) * | 2015-07-22 | 2015-10-28 | 郑州中量测控科技有限公司 | Pneumatic internal-diameter measurement device |
| CN105579810A (en) * | 2013-09-18 | 2016-05-11 | 斯托茨精细测量技术公司 | Device for pneumatic measurement of object |
| CN104296699B (en) * | 2014-11-05 | 2017-01-04 | 烟台思科博量仪有限公司 | A kind of measurement apparatus of unilateral bearing inner ring centre-to-centre spacing |
| CN107655428A (en) * | 2017-11-17 | 2018-02-02 | 宁波慈兴轴承有限公司 | A kind of flexible bearing inner diameter measurement fixture and its method of work |
| CN107941174A (en) * | 2017-11-29 | 2018-04-20 | 苏州市大华精密机械有限公司 | The inner diameter measurement method of part through hole |
| CN108007399A (en) * | 2017-11-18 | 2018-05-08 | 北京工业大学 | A kind of axial workpiece Endoporus measuring device |
| CN108534718A (en) * | 2018-07-03 | 2018-09-14 | 三门峡中原量仪股份有限公司 | A kind of axis parallel degree detection device of eccentric shaft |
| CN108981622A (en) * | 2018-10-24 | 2018-12-11 | 安徽省临泉县康悦电子科技有限公司 | A kind of instrument in pneumatic gauging aperture |
| CN109307469A (en) * | 2018-11-20 | 2019-02-05 | 陕西海力特精密机械有限公司 | Pin-connected panel taper scaffold tower for air-gauge |
| CN109470184A (en) * | 2018-12-25 | 2019-03-15 | 中国航发哈尔滨轴承有限公司 | It is a kind of for measuring the electron column pneumoelectric micrometer of bearing bore diameter |
| PL424246A1 (en) * | 2018-01-10 | 2019-07-15 | Kopczyńska Anna Krysmet | Measuring device unit for measuring bushing diameters, preferably inner diameter of a bearing ring |
| CN111043948A (en) * | 2019-11-29 | 2020-04-21 | 洛阳轴承研究所有限公司 | Inner and outer diameter measuring device for thin-wall bearing ring |
| CN112066851A (en) * | 2020-08-20 | 2020-12-11 | 齐祖彬 | Accurate shell roundness detection mechanism for sweeping robot |
| CN114353698A (en) * | 2021-12-30 | 2022-04-15 | 中航工业南京伺服控制系统有限公司 | Non-contact measurement equipment and method for size and rigidity of spring tube |
-
2004
- 2004-09-30 CN CN 200410060559 patent/CN1755324A/en active Pending
Cited By (29)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103389053B (en) * | 2012-05-10 | 2016-08-17 | 上海云飞工贸发展有限公司 | Compressor cylinder mean inside diameter measuring instrument |
| CN103389053A (en) * | 2012-05-10 | 2013-11-13 | 上海云飞工贸发展有限公司 | Average inner diameter measuring instrument of cylinder body of compressor |
| CN104075672A (en) * | 2013-03-29 | 2014-10-01 | 日本活塞环株式会社 | Device and method for inspecting size of cylindrical object |
| CN103419131A (en) * | 2013-07-10 | 2013-12-04 | 温州华聚科技有限公司 | Adjuster of pneumatic measuring head |
| CN103419131B (en) * | 2013-07-10 | 2015-09-02 | 温州华聚科技有限公司 | The adjuster of gas gauge head |
| CN103486986A (en) * | 2013-08-26 | 2014-01-01 | 格林精密部件(苏州)有限公司 | Detection tool for detecting positional relations between valve bush oil grooves and basic hole |
| CN103499316A (en) * | 2013-08-26 | 2014-01-08 | 格林精密部件(苏州)有限公司 | Inspection device for detecting depth of oil grooves of valve sleeve |
| CN103499317A (en) * | 2013-08-26 | 2014-01-08 | 格林精密部件(苏州)有限公司 | Inspection device for detecting symmetry degree of oil grooves of valve sleeve |
| CN103499314A (en) * | 2013-08-26 | 2014-01-08 | 格林精密部件(苏州)有限公司 | Detection device of valve pocket oil groove |
| CN105579810B (en) * | 2013-09-18 | 2019-04-09 | 斯托茨精细测量技术公司 | The device of pneumatic gauging for target |
| CN105579810A (en) * | 2013-09-18 | 2016-05-11 | 斯托茨精细测量技术公司 | Device for pneumatic measurement of object |
| CN103737477A (en) * | 2013-12-25 | 2014-04-23 | 四川富临集团成都机床有限责任公司 | Method and device for measuring and automatically repairing cylindricity error for numerical control honing machine |
| CN104107807A (en) * | 2014-06-19 | 2014-10-22 | 杭州电子科技大学 | Pneumatic device for measuring internal diameter and external diameter of thin-wall bearing ring |
| CN104296699B (en) * | 2014-11-05 | 2017-01-04 | 烟台思科博量仪有限公司 | A kind of measurement apparatus of unilateral bearing inner ring centre-to-centre spacing |
| CN104296699A (en) * | 2014-11-05 | 2015-01-21 | 烟台思科博量仪有限公司 | Measuring device for one-way bearing inner ring center distance |
| CN105004288B (en) * | 2015-07-22 | 2019-04-16 | 郑州中量测控科技有限公司 | A kind of pneumatic inner diameter measuring device |
| CN105004288A (en) * | 2015-07-22 | 2015-10-28 | 郑州中量测控科技有限公司 | Pneumatic internal-diameter measurement device |
| CN107655428A (en) * | 2017-11-17 | 2018-02-02 | 宁波慈兴轴承有限公司 | A kind of flexible bearing inner diameter measurement fixture and its method of work |
| CN108007399A (en) * | 2017-11-18 | 2018-05-08 | 北京工业大学 | A kind of axial workpiece Endoporus measuring device |
| CN107941174A (en) * | 2017-11-29 | 2018-04-20 | 苏州市大华精密机械有限公司 | The inner diameter measurement method of part through hole |
| PL424246A1 (en) * | 2018-01-10 | 2019-07-15 | Kopczyńska Anna Krysmet | Measuring device unit for measuring bushing diameters, preferably inner diameter of a bearing ring |
| CN108534718A (en) * | 2018-07-03 | 2018-09-14 | 三门峡中原量仪股份有限公司 | A kind of axis parallel degree detection device of eccentric shaft |
| CN108534718B (en) * | 2018-07-03 | 2023-08-29 | 三门峡中原量仪股份有限公司 | Axis parallelism detection device of eccentric shaft |
| CN108981622A (en) * | 2018-10-24 | 2018-12-11 | 安徽省临泉县康悦电子科技有限公司 | A kind of instrument in pneumatic gauging aperture |
| CN109307469A (en) * | 2018-11-20 | 2019-02-05 | 陕西海力特精密机械有限公司 | Pin-connected panel taper scaffold tower for air-gauge |
| CN109470184A (en) * | 2018-12-25 | 2019-03-15 | 中国航发哈尔滨轴承有限公司 | It is a kind of for measuring the electron column pneumoelectric micrometer of bearing bore diameter |
| CN111043948A (en) * | 2019-11-29 | 2020-04-21 | 洛阳轴承研究所有限公司 | Inner and outer diameter measuring device for thin-wall bearing ring |
| CN112066851A (en) * | 2020-08-20 | 2020-12-11 | 齐祖彬 | Accurate shell roundness detection mechanism for sweeping robot |
| CN114353698A (en) * | 2021-12-30 | 2022-04-15 | 中航工业南京伺服控制系统有限公司 | Non-contact measurement equipment and method for size and rigidity of spring tube |
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