CN206618371U - Forced centering measurement mark alignment accuracy detecting device - Google Patents
Forced centering measurement mark alignment accuracy detecting device Download PDFInfo
- Publication number
- CN206618371U CN206618371U CN201720012154.1U CN201720012154U CN206618371U CN 206618371 U CN206618371 U CN 206618371U CN 201720012154 U CN201720012154 U CN 201720012154U CN 206618371 U CN206618371 U CN 206618371U
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- China
- Prior art keywords
- amesdial
- inner ring
- outer ring
- dial framework
- precision bearing
- Prior art date
- 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.)
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- A Measuring Device Byusing Mechanical Method (AREA)
Abstract
Include amesdial, dial framework, precision bearing and base the utility model discloses a kind of forced centering measurement mark alignment accuracy detecting device, the dial framework for installing amesdial is fixedly connected with precision bearing outer ring, precision bearing is fixedly connected by inner ring with base, the axis of dial framework vertical bar and the axis parallel of precision bearing inner ring.Using when, amesdial is driven to be rotated around forced centering measurement mark by rolling bearing outer ring, the amesdial gauge head jerk value rotated a circle is detected, and is compared with the calibration value of the precision bearing axis of rotation of standard component, the detected value of forced centering measurement mark alignment precision is obtained.The utility model has the characteristics of simple in construction, manufacturing cost is low, easy to use, accuracy of detection is high.
Description
Technical field
The utility model is related to engineering survey device, more particularly to forced centering measurement mark alignment accuracy detection dress
Put.
Background technology
Measurement mark is the device for demarcating ground survey control point or Observed Position, is with clear and definite center or top surface
Markstone, surveyor's beacon and other common names marked of position.During measurement, the optical centering device of measuring instrument of the frame on tripod is used
The center of centering ground survey mark, makes measuring instrument center be in ground survey mark center on same plumb line, and locate
In same plane position.And forced centering measurement mark is can directly to dispose measuring instrument or sight prism to be used for demarcating control
A kind of special measurement mark of point position, its purpose is to reduce the error of centralization of erection measuring instrument.It is characterized in that will survey
Measuring appratus is sighted target (such as prism) and is directly installed on forced centering measurement mark, and the error of centralization of measuring instrument is directly
It is making processing and the installation accuracy of forced centering measurement mark itself.This requires forced centering measurement mark making processing
When itself up and down and outer inherent vertical pivot on be located at same center.
So, the making requirement on machining accuracy of forced centering measurement mark is very high.If measuring instrument is in common ground mark
During upper placement, error of centralization requirement is only to be less than 1mm.《Precise engineering survey specification》(GB/T15314-94) regulation is forced in
The error of centralization of centering survey mark determines according to accuracy of observation, generally 0.025-0.1mm.《High Speed Rail Projects are measured
Specification》(TB10601-2009) in, rail control network (CP III) point is that forced centering measures mark, 1 forced centering measurement of CP
Mark is made up of built-in fitting, connecting rod, and built-in fitting, connecting rod require that mismachining tolerance is 0.05mm, and repeatability is installed and exchanged and misses
Difference is 0.4mm in the x and y direction.
What forced centering measurement indicated requires so high to neutralizing mismachining tolerance, at present by way of machining
Carrying out making could ensure.In mechanical processing process, typically by numerically controlled lathe controls machining accuracy in itself.To machinery
The forced centering measurement machined indicates outer, the specific accurate to dimension of inner mold, passes through the go-no go gauge (plug through measurement verification
Rule) overall diameter, interior diameter are detected, aid in carrying out the diameter or length of detection different directions with slide measure.
Forced centering measurement mark does not require nothing more than outer, the specific dimensioned precision of inner mold, and requires its interchangeability, repeats
Property forced centering precision, this be accomplished by forced centering measurement mark as 1 connecting rod of CP entirety, up and down position and mark
The alignment of will outer shaft, prism mounting hole interior axle.The alignment precision of mark is measured for forced centering, go-no go gauge (plug is used
Rule), the prior art such as slide measure can not be detected.
Utility model content
The problem of alignment precision that forced centering measures mark can not being detected for existing means and methodses, this reality
A kind of forced centering measurement mark alignment accuracy detecting device is proposed with new, interpolation forced centering is measured to the essence of mark
The amesdial that close bearing contacts forced centering measurement mark centering position with gauge head combines, and is driven by rolling bearing outer ring
Amesdial is rotated around forced centering measurement mark, detects the amesdial gauge head jerk value rotated a circle, obtains forced centering survey
The detected value of amount mark alignment precision.
The forced centering measurement mark alignment accuracy detecting device that the utility model is related to includes amesdial, dial framework, essence
Close bearing and base, amesdial are arranged on dial framework, and dial framework is fixedly connected with precision bearing outer ring, precision bearing by inner ring and
Base is fixedly connected.
Described precision bearing includes outer ring, inner ring, rolling element, upper cover plate and lower cover, and outer ring, inner ring are in cylinder respectively
Shape, rolling element is placed between outer ring and inner ring, and the axis of outer ring and inner ring is completely superposed, and upper cover plate and lower cover be arranged in parallel
Outer ring upper and lower ends and fixed by cover plate screw, through hole of the inner ring respectively from upper cover plate and lower cover center is passed, interior
The lower end of circle is fixedly connected with base.
The amesdial is arranged on dial framework, and the rear end of amesdial is fixed on dial framework, amesdial and outside computer
Connection.
The dial framework is vertical bar, and amesdial is installed on top, and lower end is fixed on precision bearing outer ring.Dial framework vertical bar
Axis and the axis parallel of precision bearing inner ring.
The detection means that the utility model is related to completes centering survey mark alignment essence by being carried out with standard component than surveying
The detection of degree.Specially：
Standard component is first inserted into inner ring and fixed by lock screw, then gently stirs outer ring, by rolling element around interior
Circle rotation, bearing outer ring drives amesdial to be rotated one week around standard component, the amesdial gauge head rotation one of contact standard component outer shaft
In week, record the calibration value of the axis of rotation of precision bearing；
Again by forced centering measurement mark insertion inner ring, fixed by lock screw, then gently stir outer ring, by rolling
Body rotates around inner ring, and bearing outer ring drives amesdial to be rotated one week around forced centering measurement mark, contact forced centering portion
The amesdial gauge head of position also rotates a circle, the jerk value that detection amesdial gauge head rotates a circle, and repeats to rotate two or three week, carries out
The repetition detection of jerk value；
The detection data of standard component and centering survey mark are recorded, calculate contrast by outer computer, are forced
The detected value of centering survey mark alignment precision.
Forced centering that the utility model is related to measurement mark alignment accuracy detecting device is simple in construction, manufacturing cost
Low, easy to use, accuracy of detection is high.The rotary axis error of precision bearing in itself is within 1 μm, amesdial measurement nominal accuracy
Also it is 1 μm, the need for meeting forced centering measurement mark accuracy detection.The utility model is coaxial in the measurement mark of engineering survey
Had broad application prospects in property accuracy detection.
Brief description of the drawings
Fig. 1 is the schematic diagram of structure of the present utility model and its application feature.
Description of symbols in figure：
1st, amesdial 2, dial framework
3rd, data line 4, computer
5th, precision bearing 6, outer ring
7th, rolling element 8, inner ring
9th, amesdial gauge head 10, forced centering measurement mark
11st, lock screw 12, cover plate screw
13rd, upper cover plate 14, lower cover
15th, base
Embodiment
The technical solution of the utility model is described further below in conjunction with the accompanying drawings.
Forced centering that the utility model is related to measurement mark alignment accuracy detecting device include amesdial 1, dial framework 2,
Precision bearing 5 and base 15, amesdial 1 are arranged on dial framework 2, and dial framework 2 is fixedly connected with the outer ring 6 of precision bearing 5, accurate axle
5 are held to be fixedly connected with base 15 by inner ring 8.
Described precision bearing 5 includes outer ring 6, inner ring 8, rolling element 7, upper cover plate 13 and lower cover 14, outer ring 6, inner ring 8
Cylindrical respectively, rolling element 7 is placed between outer ring 6 and inner ring 8, and the axis of outer ring 6 and inner ring 8 is completely superposed, upper cover plate
13 and lower cover 14 be set in parallel in the upper and lower ends of outer ring 6 and fixed by cover plate screw 12, inner ring 8 is respectively from upper cover plate 13
Passed with the through hole at the plate center of lower cover 14, the lower end of inner ring 8 is fixedly connected with base 15.
The amesdial 1 is arranged on dial framework 2, and the rear end of amesdial 1 is fixed on dial framework 2, and amesdial is passed by data
Defeated line 3 is connected with outside computer 4.
The dial framework 2 is vertical bar, and amesdial 1 is installed on top, and lower end is fixed on the outer ring 6 of precision bearing 5.Dial framework 2
The axis of vertical bar and the axis parallel of the inner ring 8 of precision bearing 5.
Claims (2)
1. a kind of forced centering measurement mark alignment accuracy detecting device, it is characterised in that：Including amesdial, dial framework, precision
Bearing and base, amesdial are arranged on dial framework, and dial framework is fixedly connected with precision bearing outer ring, and precision bearing passes through inner ring and bottom
Seat is fixedly connected；
Described precision bearing includes outer ring, inner ring, rolling element, upper cover plate and lower cover, and outer ring, inner ring difference are cylindrical,
Rolling element is placed between outer ring and inner ring, and the axis of outer ring and inner ring is completely superposed；
Described dial framework is vertical bar, and amesdial is installed on top, and lower end is fixed on precision bearing outer ring, in dial framework vertical bar
The axis parallel of axis and precision bearing inner ring；
The rear end of described amesdial is fixed on dial framework, and amesdial is connected with outside computer.
2. forced centering measurement mark alignment accuracy detecting device according to claim 1, it is characterised in that：The essence
The upper cover plate and lower cover of close bearing are set in parallel in the upper and lower ends of outer ring and fixed by cover plate screw, and inner ring is respectively from upper
Cover plate and the through hole at lower cover center are passed, and the lower end of inner ring is fixedly connected with base.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720012154.1U CN206618371U (en) | 2017-01-05 | 2017-01-05 | Forced centering measurement mark alignment accuracy detecting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720012154.1U CN206618371U (en) | 2017-01-05 | 2017-01-05 | Forced centering measurement mark alignment accuracy detecting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206618371U true CN206618371U (en) | 2017-11-07 |
Family
ID=60230151
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720012154.1U Active CN206618371U (en) | 2017-01-05 | 2017-01-05 | Forced centering measurement mark alignment accuracy detecting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206618371U (en) |
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2017
- 2017-01-05 CN CN201720012154.1U patent/CN206618371U/en active Active
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