CN202281589U - Concentricity measuring tool - Google Patents
Concentricity measuring tool Download PDFInfo
- Publication number
- CN202281589U CN202281589U CN2011203479024U CN201120347902U CN202281589U CN 202281589 U CN202281589 U CN 202281589U CN 2011203479024 U CN2011203479024 U CN 2011203479024U CN 201120347902 U CN201120347902 U CN 201120347902U CN 202281589 U CN202281589 U CN 202281589U
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- CN
- China
- Prior art keywords
- mandrel
- concentricity
- steel ball
- dial gauge
- lever meter
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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.)
- Expired - Fee Related
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Abstract
The utility model discloses a concentricity measuring tool, comprising a dial indicator, a lever indicator, a bottom plate and a fixing rod for fixing the dial indicator and the lever indicator, and also comprising a mandrel and a centering steel ball arranged at the upper end of the mandrel. The lower end of the mandrel is arranged on the bottom plate, and the upper end is equipped with a steel ball fixing hole; the lower half of the centering steel ball is arranged in the interior of the steel ball fixing hole, and the upper half part of the centering steel ball is arranged on the exterior of the steel ball fixing hole; the fixing rod is parallel with the mandrel and is arranged on the bottom plate, the lever indicator is arranged at the upper end of the fixing rod, and the dial of the lever indicator is perpendicular to the mandrel; the measuring rod of the lever indicator is parallel with the mandrel and is arranged at the upper part of the centering steel ball; the dial indicator is arranged at the lower end part of the fixing rod, and the measuring rod of the dial indicator is perpendicular to the mandrel and is arranged at one side of the mandrel. By employing the structure, the problems can be solved simultaneously that a product keyhole can not be measured by employing a partial pendulum instrument, the error is large by using a V-shaped block to measure a bottom tapered inner bore, and the inner bore can not be positioned to measure the keyhole concentricity.
Description
Technical field
The utility model relates to a kind of survey instrument technical field, especially relates to a kind of concentricity measurer through location hole measuring aperture concentricity.
Background technology
At present; In the measurer of measuring aperture; The general beat appearance that adopts, still in most cases the beat appearance can not solve product aperture measuring problem, simultaneously; For the bottom be the endoporus of the conical surface use the big problem of V-block measuring error and the bottom as the situation of conical surface endoporus under location hole measuring aperture concentricity problem, be not well solved yet.
Chinese patent document (the day for announcing: on November 19th, 2008, notification number: CN 201152733Y) disclose a kind of measurement mechanism of hexagonal edger.A kind of hexagonal edger concentricity measurement mechanism comprises a general dial gauge, and also comprise: base, this base are round table-like, are fixed with the connecting link of the dial gauge of connection on it; Measure pedestal for one, on its axis, be provided with the hole, this hole keeps vertical with the baseplane of pedestal; Measure plug for one, it topmost be the hexagonal entity consistent with hexagonal edger cavity dimension, is the flat right cylinder that protrudes between wherein, and its hypomere is a right cylinder, and this right cylinder inserts in the hole of said measurement pedestal.What technique scheme solved is the concentricity problem of hexagonal edger and cylindrical, does not relate to location hole measuring aperture concentricity problem.
The utility model content
The purpose of the utility model is to adopt the beat appearance can not problems of measurement in order to solve the product aperture, and V-block is measured the bottom for the big problem of the endoporus error of the conical surface and can't locate hole measuring aperture concentricity problem a kind of concentricity measurer is provided.
The technical scheme that its technical matters that solves the utility model adopts is: a kind of concentricity measurer, comprise dial gauge, lever meter, base plate and the fixing fixed bar of dial gauge and lever meter, and also comprise mandrel and the centering ball that is arranged on the mandrel upper end; The lower end of described mandrel is arranged on the base plate; The upper end is provided with the steel ball fixed orifice, and described centering ball the latter half is arranged on the inside of steel ball fixed orifice, and centering ball the first half is arranged on the outside of steel ball fixed orifice; Described fixed bar is parallel to mandrel and is arranged on the base plate; Said lever meter is arranged on the upper end of fixed bar, and the dial plate of lever meter is perpendicular to mandrel, and the measuring staff of lever meter is parallel to the top that mandrel is arranged on centering ball; Described dial gauge is arranged on the bottom of fixed bar, and the measuring staff of dial gauge is arranged on a side of mandrel perpendicular to mandrel.Adopt this structure, when measuring,, firmly put steady slightly downwards the measured workpiece mandrel of packing into from the top down; At this moment, the centering ball top of mandrel upper end fully contacts with the measured workpiece bottom conical surface, then; Pack into dial gauge and lever meter guarantee that dial plate and the sounding rod of lever meter is an angle of 90 degrees, the adjusting dial gauge; The measuring staff that guarantees dial gauge contacts with the lateral surface of measured workpiece, and the lock-screw at locking dial gauge place rotates measured workpiece more than one week gently; Read the reading on dial gauge and the lever meter, the maximum difference of reading is the concentricity value of aperture with endoporus.Said structure has also solved V-block measurement bottom simultaneously and has been the big problem of endoporus error of the conical surface, convenient measurement, and reading is fast, and precision is high.
As preferably; Described mandrel is set to three coaxial parts of one, and end portion circumference upper edge mandrel short transverse is provided with a plane, is provided with mounting hole perpendicular to the plane in the plane; One end of said mounting hole is a unthreaded hole; One end is a threaded hole, and the threaded hole set inside has backstay, and the lateral surface of described mandrel upper part is conical.Said structure adopts coaxial three part-structures up and down of one; Can guarantee that concentricity well locatees endoporus; The outside of upper part is that conical structure is to be the concentricity problems of measurement of the conical surface in order to solve the endoporus bottom; The backstay structure is set can guarantees the mandrel accurate positioning, measurement effect is more accurate.
As preferably; The main body of backstay is the external thread screw mandrel, and an end of screw mandrel is provided with conical structure, and the end face of conical structure is provided with bulbous protrusion; The diameter of described bulbous protrusion is less than the diameter of circular cone end face, and the height of bulbous protrusion is less than the radius of bulbous protrusion.Adopt this structure, can guarantee mandrel is carried out accurate in locating, mandrel is fully contacted with measured workpiece do not stay the gap, measurement result is more accurate.
As preferably, described mandrel and fixed bar are arranged on the base plate through lock-screw respectively.Lock-screw connects, and is easy to operate.
As preferably, described dial gauge and lever meter are arranged on the fixed bar through lock-screw respectively.The lock-screw structure is easy for installation, regulates fast.
The beneficial effect of the utility model is: the concentricity measurer that adopts mandrel and centering ball structure; Can solve the product aperture simultaneously adopts the beat appearance can not problems of measurement; V-block measurement bottom is the big problem of the endoporus error of the conical surface and can't locatees hole measuring aperture concentricity problem, and this is simple in structure; Easy to operate, measurement data is accurate.
Description of drawings
Fig. 1 is a kind of structural representation of the utility model concentricity measurer;
Fig. 2 is a kind of working state structure synoptic diagram of the utility model concentricity measurer;
Fig. 3 is a kind of structural representation of the utility model mandrel;
Fig. 4 is the vertical view of Fig. 3;
Fig. 5 is a kind of structural representation of the utility model backstay.
Among the figure: 1, mandrel, 11, the steel ball fixed orifice, 12, mounting hole, 13, the plane, 2, centering ball, 3, dial gauge, 4, lever meter, 5, backstay, 51, screw mandrel, 52, conical structure, 53, bulbous protrusion, 6, fixed bar, 7, base plate.
Embodiment
Through specific embodiment and combine accompanying drawing, the utility model technical scheme is further specified below.
Embodiment 1:
In the described embodiment of Fig. 1; A kind of concentricity measurer comprises dial gauge, lever meter, base plate and the fixing fixed bar of dial gauge and lever meter, also comprises mandrel 1 and the centering ball 2 that is arranged on mandrel 1 upper end; The lower end of described mandrel 1 is arranged on the base plate 7 through lock-screw; The upper end is provided with circular steel ball fixed orifice 11, and described centering ball 2 the latter halfs are arranged on the inside of steel ball fixed orifice 11, and centering ball 2 the first half are arranged on the outside of steel ball fixed orifice 11; Described fixed bar 6 is parallel to mandrel 1 and is arranged on the base plate 7 through lock-screw; Said lever meter 4 is arranged on the upper end of fixed bar 6 through lock-screw, and the dial plate of lever meter 4 is perpendicular to mandrel 1, and the measuring staff of lever meter 4 is parallel to the top that mandrel 1 is arranged on centering ball 2; Described dial gauge 3 is arranged on the bottom of fixed bar 6, and the measuring staff of dial gauge 3 is arranged on a side of mandrel 1 perpendicular to mandrel 1.
Described mandrel 1 (see figure 3) is set to three coaxial parts of one, and end portion circumference upper edge mandrel 1 short transverse is provided with a plane 13 (see figure 4)s, on plane 13, is provided with mounting hole 12 perpendicular to plane 13; One end of said mounting hole 12 is a unthreaded hole; One end is a threaded hole, and the threaded hole set inside has backstay 5, and the main body of backstay 5 (see figure 5)s is an external thread screw mandrel 51; One end of screw mandrel is provided with conical structure 52; The end face of conical structure is provided with bulbous protrusion 53, and the diameter of described bulbous protrusion 53 is less than the diameter of circular cone end face, and the height of bulbous protrusion 53 is less than the radius of bulbous protrusion 53.The lateral surface of described mandrel 1 upper part is conical.
In Fig. 2, measured workpiece 8 is packed into from the upper end of measurer on the measurer gently, and the upper part of centering ball 2 fully contacts with the taper surface of measured workpiece 8 endoporus; Dial gauge is fixed on the end portion of fixed bar; The gauge head of dial gauge is contacted with the outside surface of measured workpiece 8, and adjusting dial gauge fore-and-aft direction make between table rotation half-turn to a circle locking dial gauge screw; Lever meter is fixed on the upper part of fixed bar; Make lever meter dial plate and measuring staff gauge outfit be an angle of 90 degrees, make gauge outfit on the measuring staff put into the aperture of measured workpiece 8, locking lever meter screw.Rotate measured workpiece gently more than 8 one weeks, read the numerical value on dial gauge and the lever meter reading dial, the maximum difference of numerical value is the concentricity value of aperture and workpiece endoporus.Can in time change after the centering ball wearing and tearing in the described measurer, also can add less amount of lubrication oil, to increase the serviceable life of centering ball at the centering ball fixed orifice.
Claims (5)
1. concentricity measurer; Comprise dial gauge, lever meter, base plate and the fixing fixed bar of dial gauge and lever meter; It is characterized in that: also comprise mandrel (1) and be arranged on the centering ball (2) of mandrel (1) upper end, the lower end of described mandrel (1) is arranged on the base plate (7), and the upper end of mandrel (1) is provided with steel ball fixed orifice (11); Described centering ball (2) the latter half is arranged on the inside of steel ball fixed orifice (11); Centering ball (2) the first half is arranged on the outside of steel ball fixed orifice (11), and described fixed bar (6) is parallel to mandrel (1) and is arranged on the base plate (7), and said lever meter (4) is arranged on the upper end of fixed bar (6); The dial plate of lever meter (4) is perpendicular to mandrel (1); The measuring staff of lever meter (4) is parallel to the top that mandrel (1) is arranged on centering ball (2), and described dial gauge (3) is arranged on the bottom of fixed bar (6), and the measuring staff of dial gauge (3) is arranged on a side of mandrel (1) perpendicular to mandrel (1).
2. a kind of concentricity measurer according to claim 1; It is characterized in that: described mandrel (1) is set to three coaxial parts of one, and end portion circumference upper edge mandrel (1) short transverse is provided with a plane (13), and (13) are gone up and are provided with mounting hole (12) perpendicular to plane (13) on the plane; One end of said mounting hole (12) is a unthreaded hole; One end is a threaded hole, and the threaded hole set inside has backstay (5), and the lateral surface of described mandrel (1) upper part is conical.
3. a kind of concentricity measurer according to claim 1 and 2; It is characterized in that: the main body of backstay (5) is external thread screw mandrel (51); One end of screw mandrel is provided with conical structure (52); The end face of conical structure (52) is provided with bulbous protrusion (53), and the diameter of described bulbous protrusion (53) is less than the diameter of circular cone end face, and the height of bulbous protrusion (53) is less than the radius of bulbous protrusion (53).
4. a kind of concentricity measurer according to claim 1 and 2 is characterized in that: described mandrel (1) and fixed bar (6) are arranged on the base plate (7) through lock-screw respectively.
5. a kind of concentricity measurer according to claim 1 and 2 is characterized in that: described dial gauge (3) and lever meter (4) are arranged on the fixed bar (6) through lock-screw respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203479024U CN202281589U (en) | 2011-09-16 | 2011-09-16 | Concentricity measuring tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203479024U CN202281589U (en) | 2011-09-16 | 2011-09-16 | Concentricity measuring tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202281589U true CN202281589U (en) | 2012-06-20 |
Family
ID=46227756
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203479024U Expired - Fee Related CN202281589U (en) | 2011-09-16 | 2011-09-16 | Concentricity measuring tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202281589U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103727867A (en) * | 2013-12-31 | 2014-04-16 | 国核宝钛锆业股份公司 | Concentricity detection device and method |
| CN104567633A (en) * | 2014-12-25 | 2015-04-29 | 郑州一帆机械设备有限公司 | Coaxiality detection method of part with hole and device for implementing method |
| CN105737724A (en) * | 2016-04-18 | 2016-07-06 | 成都精密光学工程研究中心 | Apparatus for detecting concentricity of optical dome |
| CN108413858A (en) * | 2018-06-07 | 2018-08-17 | 中国计量大学 | A kind of contact ball pen bead sizes form measuring instrument and measurement method |
| CN112097588A (en) * | 2020-09-08 | 2020-12-18 | 西安应用光学研究所 | High-precision quick measuring device for optical and mechanical parts of special-shaped wedge type assembly body |
-
2011
- 2011-09-16 CN CN2011203479024U patent/CN202281589U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103727867A (en) * | 2013-12-31 | 2014-04-16 | 国核宝钛锆业股份公司 | Concentricity detection device and method |
| CN103727867B (en) * | 2013-12-31 | 2017-02-15 | 国核宝钛锆业股份公司 | Concentricity detection device and method |
| CN104567633A (en) * | 2014-12-25 | 2015-04-29 | 郑州一帆机械设备有限公司 | Coaxiality detection method of part with hole and device for implementing method |
| CN105737724A (en) * | 2016-04-18 | 2016-07-06 | 成都精密光学工程研究中心 | Apparatus for detecting concentricity of optical dome |
| CN108413858A (en) * | 2018-06-07 | 2018-08-17 | 中国计量大学 | A kind of contact ball pen bead sizes form measuring instrument and measurement method |
| CN112097588A (en) * | 2020-09-08 | 2020-12-18 | 西安应用光学研究所 | High-precision quick measuring device for optical and mechanical parts of special-shaped wedge type assembly body |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120620 Termination date: 20160916 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |