CN206073927U - Digital display laser internal diameter measuring instrument - Google Patents
Digital display laser internal diameter measuring instrument Download PDFInfo
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- CN206073927U CN206073927U CN201621073591.6U CN201621073591U CN206073927U CN 206073927 U CN206073927 U CN 206073927U CN 201621073591 U CN201621073591 U CN 201621073591U CN 206073927 U CN206073927 U CN 206073927U
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- Prior art keywords
- laser
- measuring instrument
- gauge head
- internal diameter
- digital display
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Abstract
This utility model provides digital display laser internal diameter measuring instrument, including handle, primary control box, connecting rod, swing arm, spherical gauge head.This laser inside diameter measuring instrument, measured using non-contact laser, continuously measured by overturning spherical gauge head, three laser range finder measurement workpiece inner walls obtain at 3 points apart from group, solve the corresponding measurement cutting plane inner diameter values of each 3 points of distances group, comparison solves the minima in internal diameter, as workpiece sagittal plane inner diameter values；This measuring instrument certainty of measurement is high, and operating process is easy, effectively eliminates the personal error that conventional contact measurement brings, and provides a kind of quickly and accurately survey tool and method for deep hole of workpiece measurement.
Description
Technical field
This utility model is related to inner diameter measurement field, and in particular to digital display laser internal diameter measuring instrument.
Background technology
Traditional inner diameter measurement adopts drift no-go gage, it is impossible to quantify measured value；Inner diameter measurement adopt slide gauge or
Inside micrometer is also only limitted to aperture inner diameter measurement；For dial bore gage or the contact type measurement of amesdial, need first axially
Rock measurement and find axial minima, then circumferencial direction is rocked and finds radial direction maximum, measurement process is loaded down with trivial details, and measured value is because of individual
Experience and measured value is not unique；On the other hand, these are all contact type measurement, easily high accuracy are added during contact type measurement
Work surface of the work causes cut, so as to disfiguring workpiece.
For a long time, internal diameter is an important measurement parameter in hole measurement, and Chinese scholars are carried out to inner diameter measurement
Substantial amounts of research.At present, the undersized inner diameter measurement technology of centering is gradually improved, but large-sized inner diameter measurement, particularly
The e measurement technology of large part inside and outside diameter develops but blank wall.The large-size inner diameter measurement of many large-scale processing sites works still
Using contact measurement methods such as large-scale inside micrometers.This method measurement efficiency is low, measurement parameter is few, measurement reproducibility
Difference, stability is not high, is easily affected by environment and operator.Doppler effect method, laser interferometer, laser lever method etc. are non-
The precision of contact type measurement is very high, but due to site environment reason, is not suitable for the in-site measurement of large-scale workpiece.And said method
All it is not suitable for carrying out depth measurement.
Utility model content
The purpose of this utility model is the problem above for overcoming prior art to exist, there is provided digital display laser inner diameter measurement
Instrument, this utility model are measured using high-precision laser, and certainty of measurement is high, and is not directly contacted with, and measurement process is to workpiece not damaged.
To realize above-mentioned technical purpose, above-mentioned technique effect is reached, this utility model is achieved through the following technical solutions：
Digital display laser internal diameter measuring instrument, including handle, primary control box, connecting rod, swing arm, spherical gauge head, it is characterised in that：Institute
The primary control box one end stated is connected with handle, and the other end is connected with connecting rod；Described connecting rod is threaded connection with swing arm；Institute
It is plane that the spherical gauge head stated is upper bottom surface, and side is spherical；Described spherical gauge head upper bottom surface is provided with connecting hole；Described
Connecting hole runs through spherical gauge head, and described spherical gauge head is fixed on swing arm top through connecting hole by screw；Described is spherical
Laser range finder is additionally provided with gauge head；Described laser range finder is located on spherical gauge head side, described laser range finder number
Measure as 3；Three laser range finders are total to spherical gauge head biggest ball plane；Power supply is provided with described handle；Described primary control box
Control chip is provided with inside；Described control chip is connected with laser range finder；Described control chip control laser range finder note
Record measured value is simultaneously calculated.
Further, the handle one side is provided with control key；Described control key is connected with control chip.
Further, three described laser range finders are distributed in isosceles right triangle；Described spherical gauge head radius
It is worth for r；In one-shot measurement, spherical gauge head is overturn, continuously measurement obtains measured object n class values and is respectively for three laser range finders
{L1i、L2i、L3i}I=1,2 ... n；Arithmetical unit is provided with described control chip, measured object is drawn through described internalarithmetic
Inner diameter values
Rotary ball gauge head angle repeatedly measures measured object and obtains R 'P (p=1,2 ... k), to R 'P (p=1,2 ... k)Do geometric mean,
Obtain final measured object inner diameter values R.
Further, three described laser range finders are distributed in equilateral triangle.
Further, described primary control box is provided with display screen；Described display screen is connected with control chip.
Further, memorizer, inner diameter values R described in described memory storage are provided with described control chip；Institute
Inner diameter values R in the display screen display-memory stated.
Further, described laser range finder is divided into generating laser and laser pickoff.
Further, described digital display laser internal diameter measuring instrument also includes auxiliary support, described auxiliary support clamping handss
Handle.
The beneficial effects of the utility model are:This utility model provides digital display laser internal diameter measuring instrument, using contactless
Laser measurement, is continuously measured by overturning spherical gauge head, and three laser feeler measurement workpiece inner walls obtain at 3 points apart from group, solve
Each 3 points of distances group is corresponding to measure cutting plane inner diameter values, compares the minima solved in internal diameter, as in workpiece sagittal plane
Footpath is worth；This measuring instrument certainty of measurement is high, and operating process is easy, effectively eliminates the personal error that conventional contact measurement brings, is
Deep hole of workpiece measurement provides a kind of quickly and accurately survey tool and method.
Described above is only the general introduction of technical solutions of the utility model, in order to better understand skill of the present utility model
Art means, and being practiced according to the content of description, with preferred embodiment of the present utility model and coordinate accompanying drawing detailed below
Describe in detail bright as after.Specific embodiment of the present utility model is shown in detail in by following examples and its accompanying drawing.
Description of the drawings
Accompanying drawing described herein is used for providing further understanding to of the present utility model, constitutes the part of the application,
Schematic description and description of the present utility model is used to explain this utility model, does not constitute to of the present utility model improper
Limit.In the accompanying drawings：
Fig. 1 is digital display laser internal diameter measuring instrument assembling schematic perspective view of the present utility model；
Fig. 2 is digital display laser internal diameter measuring instrument side schematic view of the present utility model；
Fig. 3 is digital display laser internal diameter measuring instrument measurement application partial schematic diagram of the present utility model；
Fig. 4 is digital display laser internal diameter measuring instrument measurement application front view of the present utility model；
Fig. 5 is that digital display laser internal diameter measuring instrument measuring principle of the present utility model illustrates Fig. 1；
Fig. 6 is that digital display laser internal diameter measuring instrument measuring principle of the present utility model illustrates Fig. 2；
Fig. 7 is that digital display laser internal diameter measuring instrument measuring principle of the present utility model illustrates Fig. 3；
Label declaration in figure：Handle 1, primary control box 2, connecting rod 3, swing arm 4, spherical gauge head 5, laser range finder 6, measured object
8th, control key 11, display screen 21, connecting hole 51, generating laser 61, laser pickoff 62.
Specific embodiment
Below with reference to the accompanying drawings and in conjunction with the embodiments, describe this utility model in detail.
Shown in reference picture 1-7, digital display laser internal diameter measuring instrument, including it is handle 1, primary control box 2, connecting rod 3, swing arm 4, spherical
Gauge head 5；2 one end of primary control box is connected with handle 1, and the other end is connected with connecting rod 3；Connecting rod 3 is threaded connection with swing arm 4；
It is plane that spherical gauge head 5 is upper bottom surface, and side is spherical；5 upper bottom surface of spherical gauge head is provided with connecting hole 51；Connecting hole 51 runs through
Spherical gauge head 5, spherical gauge head 5 are fixed on swing arm 4 top through connecting hole 51 by screw；Laser is additionally provided with spherical gauge head 5
Diastimeter 6；Laser range finder 6 is located on 5 side of spherical gauge head, and 6 quantity of laser range finder is 3；Three laser range finders 6 are altogether
5 biggest ball plane of spherical gauge head；Power supply is provided with handle 1；Control chip is provided with primary control box 2；Control chip and laser ranging
Instrument 6 connects；Control chip control laser range finder 6 record measured value is simultaneously calculated.As shown in Fig. 21 end of handle is provided with spiral cover
12, spiral cover 12 of outwarding winding changes power supply.
As shown in Figure 1 and Figure 2,1 one side of handle is provided with control key 11；Control key 11 is connected with control chip.Control key 11 is wrapped
Include power key, aligning key, measurement key, calculation key, display key.Primary control box 2 is provided with display screen 21, and display screen 21 is connected with control chip
Connect.As shown in Fig. 26 points of laser range finder is generating laser 61 and laser pickoff 62.
Further, memorizer, memory storage inner diameter values R are provided with control chip；In 21 display-memory of display screen
Inner diameter values R.
Further, digital display laser internal diameter measuring instrument also includes auxiliary support, and auxiliary support plays Auxiliary support effect, auxiliary
Bearing holding handle 1, without the need for man-hour manually hand-held.
With reference to Fig. 3-7, situation of three laser range finders 6 in isosceles right triangle distribution is discussed：
As shown in fig. 7, it is isosceles right triangle that point A, B, C are respectively three laser range finders, i.e. △ ABC, AB, AC are
Right-angle side, D are BC sides midpoint, then AD ⊥ BC, extend DA, DB, DC respectivelyHand over circleO is in point E, F, G；41 radius value of known outer shroud is
R, then release DA=DB=DC=r, and measured object 8 is measured measured value by three laser range finders 6 and is respectively L1, L2, L3, i.e.,
AE=L1, BF=L2, CG=L3, make DE=a=L1+r, DF=b=L2+r, DG=c=L3+r；ThenFG=w=b+c；Known △ EFG, then △ EFG circumscribed circles O is only
One, circumscribed circle O inner diameter values are 8 inner diameter values of measured object, using Heron's formula, can obtain 8 inner diameter values of measured objectBring into
As Fig. 5, Fig. 6 understand, when the measurement plane that three laser range finders 6 are formed is with 8 θ in a certain angle of measured object,
It is measured for minor axis be R, major diameter for R/cos θ ellipse, and if only if when measurement plane is vertical with 8 axis of measured object, institute
The figure for measuring is circle, as shown in fig. 6, when ellipse completely includes circle, i.e. measurement plane upset, the minima of R values is measured object 8
Inner diameter values.In single measurement, spherical gauge head 5 is overturn, measured object 8 is measured n measured n group by three laser range finders
Value is respectively { L1i、L2i、L3i)I=1,2 ... n；Then measured object inner diameter values
5 angle of rotary ball gauge head repeatedly measures measured object 8 and obtains R 'P (p=1,2 ... k), to R 'P (p=1,2 ... k)Do geometry equal
Value, obtains final 8 inner diameter values R of measured object.
First guarantee that this laser inside diameter measuring instrument power supply is sufficient using front；During use, power-on key, using standard component or school
Quasi- instrument, presses aligning key and three laser range finders 6 is calibrated, after calibration.Handle 1 is held by laser inside diameter measuring instrument
Spherical gauge head 5 is stretched in measured object 8, and measurement cutting plane and 8 radial section of measured object of spherical gauge head 5 are difficult excessive, pin survey
Amount key, the transmitting laser of generating laser 61 on spherical gauge head 5, while laser pickoff 62 records 3 points of distance value, together
When moving handle 1 overturn spherical gauge head 5, memorizer record distance values group, press calculation key, control chip calculates each distance
The corresponding inner diameter values of numerical value group, compare inner diameter values R for showing that minima is this measurement ', by mobile or rotary handle 1 more
Change measurement position, such as apart from it is inadequate when, rotatable swing arm 4 is measured after being allowed to elongation, obtains the inner diameter values of multiple measurement
R′P (p=1,2 ... k), to R 'P (p=1,2 ... k)Geometric mean is done, final 8 inner diameter values R of measured object are obtained.Press display key, display screen
21 show final R values.
Do measurement checking test below to the standard component of diameter 100mm and obtain data below：
Can be knowable to data above, θ values are bigger, and R ' differs bigger from R values, as after reservation arithmetic point during measurement, three have
Effect numeral, therefore value of calculation R '=50.0001mm when left 0 °.
Further, three laser range finders 6 are also similar to isosceles right triangle solution in equilateral triangle distribution solution,
But according to practical situation, during in isosceles right triangle, computing is easier, therefore it is preferred that three laser range finders 6 are in isosceles right angle
Triangle-Profile.
This utility model provides digital display laser internal diameter measuring instrument, is measured using non-contact laser, by overturning spherical survey
Head is continuous to be measured, and three laser feeler measurement workpiece inner walls obtain at 3 points apart from group, solves the corresponding measurement of each 3 points of distances group
Cutting plane inner diameter values, compare the minima solved in internal diameter, as workpiece sagittal plane inner diameter values；This measuring instrument certainty of measurement
Height, operating process are easy, effectively eliminate the personal error that conventional contact measurement brings, and provide a kind of fast for deep hole of workpiece measurement
Speed and accurately survey tool and method.
The above, preferred embodiment only of the present utility model not makees any formal to this utility model
Restriction；The those of ordinary skill of all industry can shown in by specification accompanying drawing and the above and swimmingly implement this practicality
It is new；But, all those skilled in the art are taken off in the range of without departing from technical solutions of the utility model using more than
The technology contents that show and a little change, modification and the equivalent variations for developing made, are Equivalent embodiments of the present utility model；
Meanwhile, the change of all any equivalent variations above example made according to substantial technological of the present utility model, modify and drill
Become etc., still fall within the protection domain of the technical solution of the utility model.
Claims (9)
1. digital display laser internal diameter measuring instrument, including handle (1), primary control box (2), connecting rod (3), swing arm (4), spherical gauge head (5),
It is characterized in that：Described primary control box (2) one end is connected with handle (1), and the other end is connected with connecting rod (3)；Described connection
Bar (3) is threaded connection with swing arm (4)；Described spherical gauge head (5) is plane for upper bottom surface, and bottom is spherical；Described
Spherical gauge head (5) upper bottom surface is provided with connecting hole (51)；Described connecting hole (51) is through spherical gauge head (5), described spherical survey
Head (5) is fixed on swing arm (4) top through connecting hole (51) by screw；Laser Measuring is additionally provided with described spherical gauge head (5)
Distance meter (6)；On spherical gauge head (5) side, described laser range finder (6) quantity is 3 to described laser range finder (6)
It is individual；Three laser range finders (6) are total to spherical gauge head (5) biggest ball plane；Power supply is provided with described handle (1)；Described master
Control chip is provided with control box (2)；Described control chip is connected with laser range finder (6)；Described control chip control swashs
Optar (6) records measured value and calculates.
2. digital display laser internal diameter measuring instrument according to claim 1, it is characterised in that：The handle (1) is simultaneously provided with control
Key (11) processed；Described control key (11) is connected with control chip.
3. digital display laser internal diameter measuring instrument according to claim 1, it is characterised in that：Three described laser range finders
(6) it is distributed in isosceles right triangle.
4. digital display laser internal diameter measuring instrument according to claim 1, it is characterised in that：Three described laser range finders
(6) it is distributed in equilateral triangle.
5. digital display laser internal diameter measuring instrument according to claim 3, it is characterised in that：Described spherical gauge head (5) radius
It is worth for r；In one-shot measurement, spherical gauge head (5) is overturn, three laser range finders (6) continuously measure and obtain measured object (8) n groups
Value is respectively { L1i、L2i、L3i}I=1,2 ... n；Arithmetical unit is provided with described control chip, is obtained through described internalarithmetic
Go out measured object (8) inner diameter values
Rotary ball gauge head (5) angle repeatedly measures measured object (8) and obtains R 'p(P=1,2 ... k), to R 'p(P=1,2 ... k) to do geometry equal
Value, obtains final measured object (8) inner diameter values R.
6. digital display laser internal diameter measuring instrument according to claim 5, it is characterised in that：Described primary control box (2) is provided with aobvious
Display screen (21)；Described display screen (21) is connected with control chip.
7. digital display laser internal diameter measuring instrument according to claim 6, it is characterised in that：It is provided with described control chip and deposits
Reservoir, inner diameter values R described in described memory storage；Inner diameter values R in described display screen (21) display-memory.
8. digital display laser internal diameter measuring instrument according to claim 7, it is characterised in that：Described laser range finder (6) point
For generating laser (61) and laser pickoff (62).
9. digital display laser internal diameter measuring instrument according to claim 8, it is characterised in that：Described digital display laser inner diameter measurement
Instrument also includes auxiliary support, described auxiliary support holding handle (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621073591.6U CN206073927U (en) | 2016-09-23 | 2016-09-23 | Digital display laser internal diameter measuring instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621073591.6U CN206073927U (en) | 2016-09-23 | 2016-09-23 | Digital display laser internal diameter measuring instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206073927U true CN206073927U (en) | 2017-04-05 |
Family
ID=58438887
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621073591.6U Expired - Fee Related CN206073927U (en) | 2016-09-23 | 2016-09-23 | Digital display laser internal diameter measuring instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206073927U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106323185A (en) * | 2016-09-23 | 2017-01-11 | 苏州蓝王机床工具科技有限公司 | Digital display laser inner diameter measuring instrument |
| CN111156890A (en) * | 2018-11-07 | 2020-05-15 | 无锡万奈特测量设备有限公司 | Electronic measuring head for measuring ultra-large aperture |
-
2016
- 2016-09-23 CN CN201621073591.6U patent/CN206073927U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106323185A (en) * | 2016-09-23 | 2017-01-11 | 苏州蓝王机床工具科技有限公司 | Digital display laser inner diameter measuring instrument |
| CN111156890A (en) * | 2018-11-07 | 2020-05-15 | 无锡万奈特测量设备有限公司 | Electronic measuring head for measuring ultra-large aperture |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170405 Termination date: 20200923 |