CN109253680A - A kind of bolt length variable quantity measuring device and its application method - Google Patents
A kind of bolt length variable quantity measuring device and its application method Download PDFInfo
- Publication number
- CN109253680A CN109253680A CN201811279947.5A CN201811279947A CN109253680A CN 109253680 A CN109253680 A CN 109253680A CN 201811279947 A CN201811279947 A CN 201811279947A CN 109253680 A CN109253680 A CN 109253680A
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- CN
- China
- Prior art keywords
- bolt
- measured
- length
- supporting block
- gauge
- 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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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
- G01B5/02—Measuring arrangements characterised by the use of mechanical techniques for measuring length, width or thickness
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
- G01B21/02—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring length, width, or thickness
Abstract
The invention discloses a kind of bolt length variable quantity measuring device and its application method, including it is pedestal, length gauge scale, gauge table grip block, supporting block, top；The pedestal outer framework is equipped with upper plate, lower plate and inclined plate in close trapezoidal；Horizontal slide is offered on the upper plate, and the gauge table grip block and the supporting block are slidably distributed on the horizontal slide；One end of the upper plate is additionally provided with top fixed block, is additionally provided with vertical slideway on the top fixed block, described top to be slidably fixed on the vertical slideway；The top end and the indicator end of the length gauge scale are tip；The supporting block be distributed in the gauge table grip block and it is described it is top between；The length gauge scale is distributed on the gauge table grip block；The lower plate and the inclined plate can act as the support bottom surface that the pedestal is held on ground.It is easy to operate, accuracy of measurement is high, confidence level is strong, high-efficient using detection method of the invention.
Description
Technical field
The present invention relates to fastener detection technique fields, and in particular to a kind of bolt length variable quantity measuring device and its makes
Use method.
Background technique
Bolt class fastener may generate small length variation after use, before the use by detecting bolt,
Length variable quantity afterwards judges the service life of bolt.In order to measure length variable quantity, need once to make using preceding measurement
It is primary with measurement is repeated later.Because the change degree of its length is inherently in the micron-scale after bolt use, for ensure to measure
Accuracy, interference of correlative factor when needing to reduce duplicate measurements twice, such as measurement pressure etc..
Currently employed detection method has vernier caliper, when measuring bolt length, the both ends of the surface of bolt is taken to measure,
When bolt using after its end face edge can because the influence of the effects of being stretched and squeezing power after there is random distortion change
Shape, therefore this measurement method can be accurate in the end surface shape deviation accumulation to length measurement of bolt, influencing to measure
Property.To avoid the form error of bolt end face to the influence of linear measure longimetry, another method is to process positioning at bolt both ends
Then taper hole inlays steel ball at the both ends of bolt, it is de- to will lead to the steel ball inlayed for the deformation of bolt in this way but in use
It falls, and has changed the characteristic of bolt, therefore this measurement method success rate is low, confidence level is also low and complicated for operation.
The disclosure of background above technology contents is only used for auxiliary and understands design and technical solution of the invention, not necessarily
The prior art for belonging to present patent application, no tangible proof show above content present patent application the applying date
In disclosed situation, above-mentioned background technique should not be taken to the novelty and creativeness of evaluation the application.
Summary of the invention
The present invention provide in view of the above technical problems it is a kind of it is easy to operate, accuracy of measurement is high, confidence level is strong, high-efficient
Bolt length variable quantity measuring device and its application method.
To achieve the above object, the present invention adopts the following technical scheme:
A kind of bolt length variable quantity measuring device, including pedestal, length gauge scale, gauge table grip block, supporting block, top
Point；The pedestal outer framework is equipped with upper plate, lower plate and inclined plate in close trapezoidal；Horizontal slide is offered on the upper plate,
The gauge table grip block and the supporting block are slidably distributed on the horizontal slide；One end of the upper plate is additionally provided with
Top fixed block, is additionally provided with vertical slideway on the top fixed block, described top to be slidably fixed on the vertical slideway；
The top end and the indicator end of the length gauge scale are tip；The supporting block is distributed in the metering table folder
Hold block and it is described it is top between；The length gauge scale is distributed on the gauge table grip block；The lower plate and it is described tiltedly
Plate can act as the support bottom surface that the pedestal is held on ground.
Further, the supporting block is V-type supporting block, there are two the V-type supporting block is set.
Further, the lower part of the supporting block and the lower part of the gauge table grip block have been each provided bolt assembly,
The bolt assembly includes a screw rod and two nuts, and two nuts clamp the upper plate, realizes institute
The upper and lower position for stating supporting block and the gauge table grip block adjusts and slidably fixes on the horizontal slide.
Further, the length gauge scale is dial gauge or amesdial or displacement sensor.
Further, the angle of the inclined plate and the lower plate is between 120~150 degree.
Further, the angle of the inclined plate and the lower plate is between 125~135 degree.
A method of bolt length variable quantity being measured using bolt length variable quantity measuring device as described above,
Include the following steps:
(1) lower plate is held on ground, according to gauge table grip block described in the length adjustment of bolt to be measured in water
The left-right position in smooth road, bolt to be measured is placed in V-type supporting block；
(2) the gauge table grip block, described top and described V-type supporting block are carried out according to the diameter of bolt to be measured
Lower adjusting makes the center line of the tip of the described top and described length gauge scale and the bolt to be measured in V-type supporting block same
On horizontal line；
(3) inclined plate (inclined plate of top 3 side) is held on ground, made by the gravity pressure of bolt to be measured
To detect pressure, the reading of length gauge scale is detected and read to bolt length to be measured, then bolt to be measured is removed, carried out
Bolt tightening action to be measured；
(4) bolt to be measured after tightening action is repeated above-mentioned measurement to operate, and read, determine detected value, completed to be measured
The length variable quantity of bolt measures.
The present invention compared with prior art the utility model has the advantages that the present invention is by being equipped with pedestal, inclined plate may be implemented in pedestal
Inclined rest is supported by way of combining and being equipped with V-type supporting block, ensures to detect using bolt own wt to be measured realization
Pressure it is constant and top by being equipped with, using length gauge scale, by nib contacts bolt-center to be measured, (rather than bolt is all
Side) mode, avoid because bolt to be measured using rear periphery rotate deformation band detection error；It is prior, using this dress
It sets without reequiping bolt to be measured, maintains the original appearance of bolt to be measured, do not change bolt primary characteristic to be measured, Measurement reliability is more
High, more fitting actual value.The method detected using above-mentioned apparatus can be realized pressure when detection pressure is suitable for and repeats to detect
Power is constant, can be realized the quick and easy and accurate of detection, significantly improves the confidence level of detection efficiency and detection.
Detailed description of the invention
Fig. 1 is top perspective structural schematic diagram of the invention；
Fig. 2 is side view of the invention；
Fig. 3 is the side view when present invention carries out bolt detection.
Specific embodiment
As shown in Figures 1 to 3, a kind of bolt length variable quantity measuring device, including pedestal 1, length gauge scale 7, gauge table
Grip block 6, two V-type supporting blocks 4, top 3；The pedestal outer framework is equipped with upper plate, lower plate and inclined plate in close trapezoidal；
Horizontal slide 10 is offered on the upper plate, and 6 He of gauge table grip block is slidably distributed on the horizontal slide 10
The V-type supporting block 4；The lower part of V-type supporting block described in the present embodiment 4 and the lower part of the gauge table grip block 6 are all each
Equipped with bolt assembly, the bolt assembly includes a screw rod and two nuts 5, and two nuts 5 are to the upper plate
It is clamped, realizes that the upper and lower position of the V-type supporting block 4 and the gauge table grip block 6 is adjusted and described horizontal sliding
It is slidably fixed on road 10.
One end of the upper plate is additionally provided with top fixed block 9, is additionally provided with vertical slideway 9-1 on the top fixed block 9,
Described top 3 are slidably fixed on the vertical slideway 9-1 by screw 2；Top 3 end and the length gauge
The indicator end of scale 7 is tip, why is set as tip and only contacts wherein when contacting with bolt 8 to be measured primarily to realizing
The heart, prevent because bolt after use its periphery torsional deformation and cause measurement inaccuracy；The V-type supporting block 4 is distributed in institute
It states between gauge table grip block 6 and described top 3；The length gauge scale 7 is dial gauge or amesdial or displacement sensor, is led to
Nut 5 is crossed to clamp and be distributed on the gauge table grip block 6；The lower plate and the inclined plate can act as the pedestal 1
It is held on the support bottom surface on ground, this is also based on the testing principle of this detection device, by relying on bolt self weight to be measured to ensure
Front and back detection pressure constant when detecting, does not have to impressed pressure, has prevented traditional impressed pressure and has been unable to ensure front and back detection pressure
Constant problem.To realize preferably measurement, the angle of the inclined plate and the lower plate can be set to 120 °, 125 °, 130 °,
135 ° and 140 °, 150 °, when using above-mentioned angle, the gravity pressure generated when to detection is convenient.
In the use of the present invention, lower plate is held on ground, first according to the diameter and length pair of bolt to be measured
Gauge table grip block 6, top 3 and V-type supporting block 4 carry out up and down adjustment, make the top and V-type branch of top 3 and length gauge scale 7
The center line of bolt to be measured on bracer in the same horizontal line, and carries out horizontal direction to gauge table grip block 6 and horizontally slips tune
Section, is then held on ground for the inclined plate (inclined plate of top 3 side), and upper plate tilts at this time, by bolt to be measured
Gravity pressure as detection pressure, do not apply any external force, the reading of length gauge scale detected and read to bolt to be measured
Number, then bolt to be measured is removed, bolt make-up to be measured is carried out, above-mentioned measurement then is carried out to the bolt to be measured again, and read,
Determine detected value.Using the present apparatus, bolt to be measured falls by self gravity and leans against measuring device and measure, in addition to this without attached
Add external force to fix bolt to be measured.Contact pressure when measurement, to be measured bolt use after nothing related to the self weight of bolt to be measured
When fracture distress, the self weight of bolt is constant, and the tilt angle of inclined plate is constant, then the contact pressure measured also remains unchanged.Meanwhile
Using the present apparatus without reequiping bolt to be measured, the original appearance of bolt to be measured is maintained, does not change bolt primary characteristic to be measured, measurement can
It is higher by property, closer to bolt actual value to be measured.
A method of bolt length variable quantity being measured using bolt length variable quantity measuring device as described above,
Include the following steps:
(1) lower plate is held on ground, according to gauge table grip block described in the length adjustment of bolt to be measured in water
The left-right position in smooth road, bolt to be measured is placed in V-type supporting block；
(2) the gauge table grip block, described top and described V-type supporting block are carried out according to the diameter of bolt to be measured
Lower adjusting makes the center line of the tip of the described top and described length gauge scale and the bolt to be measured in V-type supporting block same
On horizontal line；
(3) inclined plate (inclined plate of top 3 side) is held on ground, made by the gravity pressure of bolt to be measured
To detect pressure, the reading of length gauge scale is detected and read to bolt length to be measured, then bolt to be measured is removed, carried out
Bolt tightening action to be measured；
(4) bolt to be measured after tightening action is repeated above-mentioned measurement to operate, and read, determine detected value, completed to be measured
The length variable quantity of bolt measures.
Claims (7)
1. a kind of bolt length variable quantity measuring device, it is characterised in that: including pedestal, length gauge scale, gauge table grip block,
It is supporting block, top；The pedestal outer framework is equipped with upper plate, lower plate and inclined plate in close trapezoidal；It is offered on the upper plate
The gauge table grip block and the supporting block is slidably distributed on the horizontal slide in horizontal slide；The upper plate
One end is additionally provided with top fixed block, is additionally provided with vertical slideway on the top fixed block, it is described it is top be slidably fixed on it is described
On vertical slideway；The top end and the indicator end of the length gauge scale are tip；The supporting block is distributed in
The gauge table grip block and it is described it is top between；The length gauge scale is distributed on the gauge table grip block；Under described
Bottom plate and the inclined plate can act as the support bottom surface that the pedestal is held on ground.
2. a kind of bolt length variable quantity measuring device according to claim 1, it is characterised in that: the supporting block is V
Type supporting block, there are two the V-type supporting block is set.
3. a kind of bolt length variable quantity measuring device according to claim 1, it is characterised in that: under the supporting block
Portion and the lower part of the gauge table grip block have been each provided bolt assembly, and the bolt assembly includes a screw rod and two
Nut, two nuts clamp the upper plate, realize the supporting block and the gauge table grip block up and down
Position adjusts and slidably fixes on the horizontal slide.
4. a kind of bolt length variable quantity measuring device according to claim 1, it is characterised in that: the length gauge scale
For dial gauge or amesdial or displacement sensor.
5. a kind of bolt length variable quantity measuring device according to claim 1, it is characterised in that: the inclined plate with it is described
The angle of lower plate is between 120~150 degree.
6. a kind of bolt length variable quantity measuring device according to claim 5, it is characterised in that: the inclined plate with it is described
The angle of lower plate is between 125~135 degree.
7. a kind of bolt length variable quantity measuring device using as described in claim 1~6 is any measures bolt length
The method of variable quantity, which comprises the steps of:
(1) lower plate is held on ground, it is sliding in level according to gauge table grip block described in the length adjustment of bolt to be measured
Bolt to be measured is placed in V-type supporting block by the left-right position in road；
(2) upper downward is carried out to the gauge table grip block, described top and described V-type supporting block according to the diameter of bolt to be measured
Section, the center line at the tip and the bolt to be measured in V-type supporting block that make the described top and described length gauge scale is in same level
On line；
(3) inclined plate (inclined plate of top 3 side) is held on ground, by the gravity pressure of bolt to be measured as inspection
Measuring pressure is detected and is read to bolt length to be measured the reading of length gauge scale, then bolt to be measured is removed, and is carried out to be measured
Bolt tightening action；
(4) bolt to be measured after tightening action is repeated above-mentioned measurement to operate, and read, determined detected value, complete bolt to be measured
Length variable quantity measurement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811279947.5A CN109253680B (en) | 2018-10-30 | 2018-10-30 | Bolt length change amount measuring device and using method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811279947.5A CN109253680B (en) | 2018-10-30 | 2018-10-30 | Bolt length change amount measuring device and using method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109253680A true CN109253680A (en) | 2019-01-22 |
| CN109253680B CN109253680B (en) | 2020-08-14 |
Family
ID=65044046
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811279947.5A Active CN109253680B (en) | 2018-10-30 | 2018-10-30 | Bolt length change amount measuring device and using method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109253680B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60152901A (en) * | 1984-01-20 | 1985-08-12 | Hirano Sekkei Kk | Inspecting machine for hexagon socket bolt |
| JP2007108153A (en) * | 2005-10-11 | 2007-04-26 | Koichi Takahashi | Device for holding number of screw threads (number of pitches) of bolt |
| CN202002594U (en) * | 2011-02-23 | 2011-10-05 | 葛洲坝集团试验检测有限公司 | Concrete specimen length change tester |
| CN203405142U (en) * | 2013-08-22 | 2014-01-22 | 中国神华能源股份有限公司 | Measuring scale used for measuring coupling bolt of turbo generator set |
| CN103760327A (en) * | 2014-01-21 | 2014-04-30 | 深圳大学 | Concrete shrinkage measuring instrument |
| CN204085476U (en) * | 2014-08-22 | 2015-01-07 | 宁波铝宏汽车零部件有限公司 | Transmission gears repacking tool |
| CN206683539U (en) * | 2017-03-03 | 2017-11-28 | 武汉市恒通诚汽车零部件有限公司 | A kind of length-measuring appliance |
| CN207907791U (en) * | 2018-03-29 | 2018-09-25 | 山东理工精密机械有限公司 | Long axis measuring device |
-
2018
- 2018-10-30 CN CN201811279947.5A patent/CN109253680B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60152901A (en) * | 1984-01-20 | 1985-08-12 | Hirano Sekkei Kk | Inspecting machine for hexagon socket bolt |
| JP2007108153A (en) * | 2005-10-11 | 2007-04-26 | Koichi Takahashi | Device for holding number of screw threads (number of pitches) of bolt |
| CN202002594U (en) * | 2011-02-23 | 2011-10-05 | 葛洲坝集团试验检测有限公司 | Concrete specimen length change tester |
| CN203405142U (en) * | 2013-08-22 | 2014-01-22 | 中国神华能源股份有限公司 | Measuring scale used for measuring coupling bolt of turbo generator set |
| CN103760327A (en) * | 2014-01-21 | 2014-04-30 | 深圳大学 | Concrete shrinkage measuring instrument |
| CN204085476U (en) * | 2014-08-22 | 2015-01-07 | 宁波铝宏汽车零部件有限公司 | Transmission gears repacking tool |
| CN206683539U (en) * | 2017-03-03 | 2017-11-28 | 武汉市恒通诚汽车零部件有限公司 | A kind of length-measuring appliance |
| CN207907791U (en) * | 2018-03-29 | 2018-09-25 | 山东理工精密机械有限公司 | Long axis measuring device |
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| Publication number | Publication date |
|---|---|
| CN109253680B (en) | 2020-08-14 |
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