CN110196005A - Nuclear power has the calibrating installation and method of radioactivity vernier measuring tool - Google Patents
Nuclear power has the calibrating installation and method of radioactivity vernier measuring tool Download PDFInfo
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- CN110196005A CN110196005A CN201910515800.XA CN201910515800A CN110196005A CN 110196005 A CN110196005 A CN 110196005A CN 201910515800 A CN201910515800 A CN 201910515800A CN 110196005 A CN110196005 A CN 110196005A
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- retreat
- advance
- gauge block
- measuring
- measuring jaw
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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
- 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
- G01B21/04—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 by measuring coordinates of points
- G01B21/042—Calibration or calibration artifacts
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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
- G01B3/00—Measuring instruments characterised by the use of mechanical techniques
- G01B3/20—Slide gauges
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- General Physics & Mathematics (AREA)
- Length-Measuring Instruments Using Mechanical Means (AREA)
- A Measuring Device Byusing Mechanical Method (AREA)
Abstract
The invention discloses calibrating installation and method that a kind of nuclear power has radioactivity vernier measuring tool, device includes: hoistable platform, advance and retreat platform, gauge block group, one group of first elastic component, the second elastic component；Gauge block group is placed on hoistable platform, and one group of first elastic component is located at left and right sides of gauge block group and common clamping gauge block group；Advance and retreat platform is located above hoistable platform, vernier measuring tool is fixed on advance and retreat platform, and the first measuring jaw and the second measuring jaw or so of vernier measuring tool are side by side, the second elastic component connect with the first measuring jaw and the first measuring jaw can be pushed close to the second measuring jaw, to measure from left and right sides clamping gauge block group；Wherein, gauge block group includes main gauge block and two mating gauge blocks, two mating gauge blocks are bonded with main gauge block or so two measuring surface respectively, gauge block group by the first measuring jaw, the second measuring jaw clamp when two mating gauge blocks contacted respectively with the first measuring jaw, the second measuring jaw, the present invention can to avoid calibrator personnel, main gauge block by measuring jaw institute band radioactivity residual cross contamination.
Description
Technical field
The present invention relates to calibrating installation and sides that nuclear power field more particularly to a kind of nuclear power have radioactivity vernier measuring tool
Method.
Background technique
The calibration method of existing vernier measuring tool is all based on standard and the calibration personnel operation of Routine Test Lab, calibration trip
The main standard device that scalar has calibration is gauge block, and the prior art relies primarily on calibration personnel and directly holds, operates vernier measuring tool
And gauge block, and read in the case where the measuring surface of the measuring jaw working face of vernier measuring tool and gauge block directly contacts.It is existing
Some calibration methods and device are mainly in foundation JJG30-2012 " general calipers vertification regulation " for various verniers, band table
Or the calibrating of digital display calliper, depth gage requires design.
The vernier measuring tool calibration of Routine Test Lab needs personnel directly to contact slide calliper rule and gauge block, at this stage in nuclear power plant
In daily maintenance work, part vernier caliper need to cause slide calliper rule with direct contact type work is carried out in radioactive equipment
It is remained per se with radioactivity and has exceeded prescribed limits, slide calliper rule will be unable to take radioactivity factory building out of, can only be placed on regulation
Workshop in use and save.In this case, calibration personnel is still according to the calibration method of Routine Test Lab in radioactivity factory building
It is interior that magnitude tracing is carried out to slide calliper rule, there are the risk that personnel and standard can be remained cross contamination by slide calliper rule institute with radioactivity, from
And causes standard that can not carry out the period because contamination radioactivity can only be trapped in radioactivity factory building and trace to the source, that is, enter one
The endless loop of a magnitude tracing causes standard gauge block to stain namely because carrying out magnitude tracing to by contamination slide calliper rule.If
This problem can not be solved, the subsequent quantity by contamination instrument will be more and more, and magnitude tracing cost will also increase considerably.
So the vernier caliper of nuclear power plant's internal cause radiocontamination can not temporarily carry out period magnitude tracing at this stage, it can only
It will be left concentratedly with radioactivity slide calliper rule, and can just bring Routine Test Lab into after limitation is reached after radioactive substance natural decay
Carry out magnitude tracing.
Summary of the invention
The technical problem to be solved in the present invention is that in view of the above drawbacks of the prior art, providing a kind of nuclear power has radiation
The calibrating installation and method of property vernier measuring tool.
The technical solution adopted by the present invention to solve the technical problems is: constructing a kind of nuclear power has radioactivity vernier measuring tool
Calibrating installation, comprising: can oscilaltion hoistable platform, can front and back retreat advance and retreat platform, gauge block group, one group first elasticity
Part, the second elastic component；
Gauge block group is placed on the hoistable platform, and one group of first elastic component is located at left and right sides of gauge block group and common folder
Hold the gauge block group；
The advance and retreat platform is located above the hoistable platform, and the vernier measuring tool is fixed on the advance and retreat platform, and
Side by side, second elastic component connect with the first measuring jaw and can push for first measuring jaw and the second measuring jaw of the vernier measuring tool or so
First measuring jaw is measured close to the second measuring jaw to clamp the gauge block group from the left and right sides；
Wherein, the gauge block group includes main gauge block and two mating gauge blocks, described two mating gauge blocks respectively with it is described
Two measuring surface fittings of main gauge block or so, two mating gauge blocks when the gauge block group is clamped by first measuring jaw, the second measuring jaw
It is contacted respectively with first measuring jaw, the second measuring jaw.
Preferably, a measuring surface of the mating gauge block and the measuring surface of main gauge block grind and, the mating gauge block it is another
One measuring surface can be contacted with corresponding first measuring jaw or the second measuring jaw, wherein the measurement of the mating gauge block
Face is higher by pre-determined distance than the measuring surface of main gauge block.
Preferably, the hoistable platform includes bottom platform and top platform, the bottom platform and lift drive mechanism
Connection, and can the oscilaltion under the driving of lift drive mechanism, between the bottom platform and top platform by sphere company
It connects；
When the first measuring jaw and the second measuring jaw clamp the gauge block group from the left and right sides, the top platform can carry out multidimensional
Degree is swung to adjust the position of gauge block group so that the measuring surface of two mating gauge blocks respectively with corresponding first measuring jaw, the second amount
The measuring surface of pawl is in close contact and the distance between the first measuring jaw, second measuring jaw minimum.
Preferably, described device includes pedestal, the lift drive mechanism include left and right elevating screw arranged side by side with
And lifting sliding rail, the lifting sliding rail and elevating screw are vertically arranged and are located at the left and right sides of the bottom platform, and
Respectively by being connected and fixed at left and right sides of connector and the bottom platform, an elevating screw is arranged in the elevating screw end
Handwheel, the elevating screw handwheel can drive the elevating screw to drive the bottom platform along lifting sliding rail oscilaltion.
Preferably, described two mating gauge blocks and the main gauge block pass through together with clamp.
Preferably, two baffles in left and right are fixed on the top platform, one group of first elastic component is connected to
Between two baffles of the fixture and left and right.
Preferably, the advance and retreat platform is connect with advance and retreat driving mechanism, and can under the driving of advance and retreat driving mechanism front and back
It retreats；
Described device includes pedestal, and left and right, which is arranged side by side, on the pedestal support column, and the advance and retreat driving mechanism includes
Left and right advance and retreat lead screw and advance and retreat sliding rail arranged side by side, the advance and retreat lead screw and advance and retreat sliding rail pass through left and right respectively and set side by side
The support column support set is fixed, and the advance and retreat lead screw and advance and retreat sliding rail are horizontally disposed and positioned at the advance and retreat platform
The left and right sides, and respectively by being connected and fixed at left and right sides of connector and the advance and retreat platform, advance and retreat lead screw end is set
An advance and retreat lead screw handwheel is set, the advance and retreat lead screw handwheel can drive the advance and retreat lead screw that the advance and retreat platform is driven to slide along retreating
It retreats before and after rail.
Preferably, a baffle is provided on the advance and retreat platform, second elastic component is connected to the first measuring jaw and baffle
Between.
Preferably, the left and right ends of the vernier measuring tool pass through cover board attaching nut respectively and are locked.
On the other hand, the calibration method that a kind of nuclear power has radioactivity vernier measuring tool has also been constructed in the present invention, is based on aforementioned
Device described in one is realized, which comprises
After pushing the first measuring jaw aside, the gauge block group is adjusted to by suitable position by the oscilaltion of hoistable platform, is passed through
The front and back of advance and retreat platform, which is retreated, is adjusted to suitable position for the vernier measuring tool, so that the first measuring jaw, the second measuring jaw are positioned at described
The left and right sides of gauge block group；
The first measuring jaw is unclamped, the first measuring jaw described in second resilient element urges is close to the second measuring jaw, and from the left and right sides
The gauge block group is clamped to measure；
Reading is compared with the nominal length of the gauge block group, to obtain the error of indication of the vernier measuring tool.
Nuclear power of the invention has the calibrating installation and method of radioactivity vernier measuring tool, has the advantages that calibration
In the case that member is substantially without measuring jaw with radionuclide is directly contacted, the purpose calibrated to measurer still may be implemented, significantly
The risk that reduction personnel are stain；And since two measuring surface of main gauge block are by two mating gauge blocks coverings, the first measuring jaw, second
Two mating gauge blocks are contacted with first measuring jaw, the second measuring jaw respectively when measuring jaw clamps, therefore there is no main gauge blocks to be measured
Pawl with radioactivity residual cross contamination risk, mating gauge block purchase cost is low, replacement be easy, if there is mating gauge block quilt
It stains, can be substituted with gauge block mating outside volumn of purchase.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
The embodiment of invention for those of ordinary skill in the art without creative efforts, can also basis
The attached drawing of offer obtains other attached drawings:
Fig. 1 is the structural schematic diagram for the calibrating installation that nuclear power of the present invention has radioactivity vernier measuring tool.
Specific embodiment
To facilitate the understanding of the present invention, a more comprehensive description of the invention is given in the following sections with reference to the relevant attached drawings.In attached drawing
Give exemplary embodiments of the invention.But the invention can be realized in many different forms, however it is not limited to this paper institute
The embodiment of description.On the contrary, purpose of providing these embodiments is make it is more thorough and comprehensive to the disclosure.It answers
When understanding that the specific features in the embodiment of the present invention and embodiment are the detailed description to technical scheme, rather than
Restriction to technical scheme, in the absence of conflict, the technical characteristic in the embodiment of the present invention and embodiment can
To be combined with each other.
It should be noted that it can directly on the other element when element is referred to as " being fixed on " another element
Or there may also be elements placed in the middle.When an element is considered as " connection " another element, it, which can be, is directly connected to
To another element or it may be simultaneously present centering elements.Term as used herein " vertical ", " horizontal ", " left side ",
" right side " and similar statement are for illustrative purposes only.
Unless otherwise defined, all technical and scientific terms used herein and belong to technical field of the invention
The normally understood meaning of technical staff is identical.Term as used herein in the specification of the present invention is intended merely to description tool
The purpose of the embodiment of body, it is not intended that in the limitation present invention.
" first ", " second " used in this specification etc. includes that the term of ordinal number can be used for illustrating various constituent elements,
But these constituent elements are not limited by these terms.It is only that using the purpose of these terms and distinguishes a constituent element
In other constituent elements.For example, first constituent element can be named as under the premise of not departing from interest field of the invention
Two constituent elements, similarly, the second constituent element can also be named as the first constituent element.
With reference to Fig. 1, nuclear power of the invention has the calibrating installation of radioactivity vernier measuring tool, and device overall material is stainless steel
Matter.Specifically, the device include: pedestal 1, lift drive mechanism, can under the driving of lift drive mechanism oscilaltion liter
Drop platform, advance and retreat driving mechanism, can front and back is retreated under the driving of advance and retreat driving mechanism advance and retreat platform 4, gauge block group, one group the
One elastic component 15, the second elastic component 23.
Gauge block group is placed on the hoistable platform, and one group of first elastic component 15 is located at left and right sides of gauge block group and common
Clamp the gauge block group.The advance and retreat platform 4 is located above the hoistable platform, and the vernier measuring tool, which is fixed on described retreat, puts down
On platform 4, and first measuring jaw 22a and the second measuring jaw 22b of the vernier measuring tool or so is side by side, second elastic component 23 and first
Measuring jaw 22a connection and the first measuring jaw 22a can be pushed close to the second measuring jaw 22b.Due to described one group of first elastic component 15
Clamping the gauge block group at left and right sides of gauge block group and jointly, i.e., entire gauge block group can move left and right, so when measurement, as long as
First measuring jaw 22a and the second measuring jaw 22b are adjusted to the left and right sides of gauge block group, then unclamp the first measuring jaw 22a, then the first amount
Pawl 22a will drive entire gauge block group mobile toward the second direction measuring jaw 22b during close to the second measuring jaw 22b, final real
Existing first measuring jaw 22a and the second measuring jaw 22b clamps the effect that the gauge block group measures from the left and right sides.
In the present embodiment, the left and right ends of the vernier measuring tool pass through fixed device 25,26 respectively and lock, and guarantee that measurer exists
Relative static conditions are kept in calibration process.For example, fixed device can be the structure of cover board attaching nut.
Side position of keeping right on the advance and retreat platform 4 is provided with a baffle 24, and second elastic component 23 is connected to the first amount
Between pawl 22a and baffle 24.
Wherein, the gauge block group includes main gauge block 18 and two mating gauge blocks 17, and described two mating gauge blocks 17 are distinguished
It is bonded with described 18 or so two measuring surface of main gauge block, the gauge block group is clamped by the first measuring jaw 22a, the second measuring jaw 22b
When two mating gauge blocks 17 contacted respectively with the first measuring jaw 22a, the second measuring jaw 22b.
Specific: the distance between main 18 two measuring surface of gauge block len determines by the calibration point for being calibrated measurer, and mating
The nominal length of gauge block 17 is 1mm, that is to say, that the nominal length of entire gauge block group is len+1mm.The mating gauge block 17
One measuring surface and the measuring surface of main gauge block 18 grind and, another measuring surface of the mating gauge block 17 can be with corresponding described the
One measuring jaw 22a or the second measuring jaw 22b contact contact, wherein measurement of the measuring surface of the mating gauge block 17 than main gauge block 18
Face is higher by pre-determined distance, for example is higher by about 5mm or so, in order to which measuring jaw can contact mating gauge block 17 in a calibration process, and
Measure the length of the gauge block group.
In addition, matching for two described in the present embodiment to guarantee fitting closely for main gauge block 18 and two mating gauge blocks 17
Set gauge block 17 is tightened together with the main gauge block 18 by fixture 16.
Wherein, the hoistable platform includes bottom platform 2 and top platform 3, the bottom platform 2 and lift drive mechanism
Connection, and can the oscilaltion under the driving of lift drive mechanism, pass through sphere between the bottom platform 2 and top platform 3
13 connections, in this way, when the first measuring jaw 22a and the second measuring jaw 22b clamps the gauge block group from the left and right sides, due to the first measuring jaw
The clamping action of 22a and the second measuring jaw 22b, the top platform 3 can carry out various dimensions automatically and swing with adjust automatically gauge block group
Position be finally reached an equilibrium state, in equilibrium state, the measuring surface of two mating gauge blocks 17 is respectively with corresponding first
Measuring jaw 22a, the measuring surface close contact of the second measuring jaw 22b and the distance between the first measuring jaw 22a, second measuring jaw 22b minimum.
Specifically, the upper surface center of bottom platform 2 has one and the matched arc pit of sphere 13, the top platform
3 upper surface center has one and the matched arc pit of sphere 13, and sphere 13 is located at arc pit and the top of bottom platform 2
Between the arc pit of platform 3, and the depth of two arc pits makes the distance between bottom platform 2 and top platform 3 about
It is the 1/3 of 13 radius of sphere, so that top platform 3 can realize that various dimensions are swung in a certain range.
Specifically, being fixed with two baffles 14 in left and right, one group of first elasticity by the left and right sides on the top platform 3
Part 15 is connected between two baffles 14 of the fixture 16 and left and right.
Wherein, the lift drive mechanism includes left and right elevating screw 6 and lifting sliding rail 7 arranged side by side, the liter
Drop sliding rail 7 and elevating screw 6 are vertically arranged and are located at the left and right sides of the bottom platform 2, and pass through connector respectively
11, it 12 being connected and fixed with the left and right sides of the bottom platform 2, an elevating screw handwheel 28 is arranged in 6 end of elevating screw,
The elevating screw handwheel 28 can drive the elevating screw 6 to drive the bottom platform 2 along 7 oscilaltion of lifting sliding rail.
Wherein, it controls to be arranged side by side on the pedestal 1 and has support column 10,9, the advance and retreat driving mechanism includes controlling side by side
What the advance and retreat lead screw 5 and advance and retreat sliding rail 8 of setting, the advance and retreat lead screw 5 and advance and retreat sliding rail 8 were arranged side by side by left and right respectively
The support of support column 10,9 is fixed, and the advance and retreat lead screw 5 and advance and retreat sliding rail 8 are horizontally disposed with and are located at the advance and retreat platform
4 left and right sides, and be connected and fixed respectively by connector 19,20 and the left and right sides of the advance and retreat platform 4, the advance and retreat silk
An advance and retreat lead screw handwheel 27 is arranged in 5 end of thick stick, and the advance and retreat lead screw handwheel 27 can drive the advance and retreat lead screw 5 to drive the advance and retreat
Platform 4 is retreated before and after advance and retreat sliding rail 8.
The working principle of the present embodiment is as follows:
1), vernier measuring tool is fixed on advance and retreat platform 4 by calibration personnel, and gauge block group is fixed on hoistable platform；
2) lead screw, is controlled by artificial rotation and lifting lead screw handwheel 28, advance and retreat lead screw handwheel 27, so as to adjust advance and retreat platform
4, the position of hoistable platform, during the adjustment, usually first initial adjustment are finely tuned again, and the fine tuning stage needs to push aside the first measuring jaw 22a,
The first measuring jaw 22a, the second measuring jaw 22b is made to be located at the left and right sides of the gauge block group after fine tuning；
3) the first measuring jaw 22a, is unclamped, second elastic component 23 pushes the first measuring jaw 22a close to the second measuring jaw
22b, the first measuring jaw 22a drive entire gauge block group mobile toward the second direction measuring jaw 22b during close to the second measuring jaw 22b,
It is final to realize that the first measuring jaw 22a and the second measuring jaw 22b clamps the effect that the gauge block group measures from the left and right sides.When first
When measuring jaw 22a and the second measuring jaw 22b clamps the gauge block group from the left and right sides, due to the first measuring jaw 22a's and the second measuring jaw 22b
Clamping action, the top platform 3 can carry out various dimensions swing automatically and be finally reached one with the position of adjust automatically gauge block group
Equilibrium state, in equilibrium state the measuring surface of two mating gauge blocks 17 respectively with corresponding first measuring jaw 22a, the second measuring jaw
The measuring surface of 22b is in close contact and the distance between the first measuring jaw 22a, second measuring jaw 22b minimum.
4) reading is compared, to obtain the vernier by the reading for reading measurer with the nominal length of the gauge block group
The error of indication of measurer realizes its magnitude tracing.
As it can be seen that when the device based on the present embodiment is calibrated, it is possible to reduce personnel directly contact with measurer, and reduction personnel are stained with
The dirty remaining risk of radioactivity, meanwhile, main gauge block 18 and measurer are isolated by mating gauge block 17, the mesh of magnitude tracing can be reached
, and it is avoided that main gauge block 18 by cross contamination.
It should be noted that the lift drive mechanism, the specific structure of advance and retreat driving mechanism in the present invention are merely illustrative, rise
As long as drop driving mechanism, advance and retreat driving mechanism are retreated before and after capable of driving hoistable platform oscilaltion, driving advance and retreat platform 4, not
Calibration effect of the invention is influenced, all within protection scope of the present invention.
Based on the same inventive concept, the invention also discloses the calibration method that a kind of nuclear power has radioactivity vernier measuring tool, bases
It is realized in device shown in FIG. 1, which comprises
S101, after pushing the first measuring jaw 22a aside, the gauge block group is adjusted to by suitable position by the oscilaltion of hoistable platform
It sets, is retreated by the front and back of advance and retreat platform 4 and the vernier measuring tool is adjusted to suitable position, so that the first measuring jaw 22a, the second amount
Pawl 22b is located at the left and right sides of the gauge block group；
S102, the first measuring jaw 22a is unclamped, second elastic component 23 pushes the first measuring jaw 22a close to the second measuring jaw
22b, and clamp the gauge block group from the left and right sides and measure；
S103, reading is compared with the nominal length of the gauge block group, is missed with obtaining the indicating value of the vernier measuring tool
Difference.
More contents can refer to above-mentioned apparatus item embodiment, and details are not described herein again.
In conclusion nuclear power of the invention has the calibrating installation and method of radioactivity vernier measuring tool, have beneficial below
Effect: it in the case that calibrator is substantially without measuring jaw with radionuclide is directly contacted, still may be implemented to measurer calibration
Purpose substantially reduces the risk of personnel's contamination；And since two measuring surface of main gauge block are covered by two mating gauge blocks, first
Two mating gauge blocks are contacted with first measuring jaw, the second measuring jaw respectively when measuring jaw, the clamping of the second measuring jaw, therefore there is no masters
Gauge block by measuring jaw the risk with radioactivity residual cross contamination, mating gauge block purchase cost is low, and replacement is easy, if there is matching
Set gauge block is stain, and can be substituted with gauge block mating outside volumn of purchase.
The embodiment of the present invention is described with above attached drawing, but the invention is not limited to above-mentioned specific
Embodiment, the above mentioned embodiment is only schematical, rather than restrictive, those skilled in the art
Under the inspiration of the present invention, without breaking away from the scope protected by the purposes and claims of the present invention, it can also make very much
Form, all of these belong to the protection of the present invention.
Claims (10)
1. the calibrating installation that a kind of nuclear power has radioactivity vernier measuring tool characterized by comprising can oscilaltion lifting it is flat
Platform, can front and back retreat advance and retreat platform, gauge block group, one group of first elastic component, the second elastic component；
Gauge block group is placed on the hoistable platform, and one group of first elastic component is located at left and right sides of gauge block group and clamps institute jointly
State gauge block group；
The advance and retreat platform is located above the hoistable platform, and the vernier measuring tool is fixed on the advance and retreat platform, and described
Side by side, second elastic component connect with the first measuring jaw and can push described for first measuring jaw and the second measuring jaw of vernier measuring tool or so
First measuring jaw is measured close to the second measuring jaw to clamp the gauge block group from the left and right sides；
Wherein, the gauge block group includes main gauge block and two mating gauge blocks, described two mating gauge blocks respectively with the main amount
Two measuring surface fittings of block or so, two mating gauge blocks are distinguished when the gauge block group is clamped by first measuring jaw, the second measuring jaw
It is contacted with first measuring jaw, the second measuring jaw.
2. the apparatus according to claim 1, which is characterized in that the survey of a measuring surface and main gauge block of the mating gauge block
Amount face grind and, another measuring surface of the mating gauge block can be contacted with corresponding first measuring jaw or the second measuring jaw
Touching, wherein the measuring surface of the mating gauge block is higher by pre-determined distance than the measuring surface of main gauge block.
3. the apparatus according to claim 1, which is characterized in that the hoistable platform includes bottom platform and top platform,
The bottom platform is connect with lift drive mechanism, and can the oscilaltion under the driving of lift drive mechanism, the bottom is flat
It is connected between platform and top platform by sphere；
When the first measuring jaw and the second measuring jaw clamp the gauge block group from the left and right sides, the top platform can carry out various dimensions pendulum
The dynamic position to adjust gauge block group so that the measuring surface of two mating gauge blocks respectively with corresponding first measuring jaw, the second measuring jaw
Measuring surface is in close contact and the distance between the first measuring jaw, second measuring jaw minimum.
4. device according to claim 3, which is characterized in that described device includes pedestal, the lift drive mechanism packet
Left and right elevating screw and lifting sliding rail arranged side by side are included, the lifting sliding rail and elevating screw are vertically arranged and are located at
The left and right sides of the bottom platform, and respectively by being connected and fixed at left and right sides of connector and the bottom platform, it is described
An elevating screw handwheel is arranged in elevating screw end, and the elevating screw handwheel can drive the elevating screw to drive the bottom
Platform is along lifting sliding rail oscilaltion.
5. device according to claim 3, which is characterized in that described two mating gauge blocks and the main gauge block pass through fixture
It tightens together.
6. device according to claim 5, which is characterized in that be fixed with two baffles in left and right, institute on the top platform
One group of first elastic component is stated to be connected between two baffles of the fixture and left and right.
7. the apparatus according to claim 1, which is characterized in that the advance and retreat platform is connect with advance and retreat driving mechanism, and can
Front and back is retreated under the driving of advance and retreat driving mechanism；
Described device includes pedestal, and left and right, which is arranged side by side, on the pedestal support column, and the advance and retreat driving mechanism includes left and right
Advance and retreat lead screw and advance and retreat sliding rail arranged side by side, the advance and retreat lead screw and advance and retreat sliding rail pass through what left and right was arranged side by side respectively
The support column support is fixed, and the advance and retreat lead screw and advance and retreat sliding rail are horizontally disposed with and positioned at the left and right of the advance and retreat platform
Two sides, and respectively by being connected and fixed at left and right sides of connector and the advance and retreat platform, advance and retreat lead screw end setting one
Advance and retreat lead screw handwheel, the advance and retreat lead screw handwheel can drive the advance and retreat lead screw drive the advance and retreat platform along advance and retreat sliding rail before
After retreat.
8. the apparatus according to claim 1, which is characterized in that it is provided with a baffle on the advance and retreat platform, described second
Elastic component is connected between the first measuring jaw and baffle.
9. the apparatus according to claim 1, which is characterized in that matched respectively by cover board the left and right ends of the vernier measuring tool
Nut check is closed to fix.
10. the calibration method that a kind of nuclear power has radioactivity vernier measuring tool, which is characterized in that based on any one of claim 1-9 institute
The device stated is realized, which comprises
After pushing the first measuring jaw aside, the gauge block group is adjusted to by suitable position by the oscilaltion of hoistable platform, passes through advance and retreat
The front and back of platform, which is retreated, is adjusted to suitable position for the vernier measuring tool, so that the first measuring jaw, the second measuring jaw are located at the gauge block
The left and right sides of group；
The first measuring jaw is unclamped, the first measuring jaw described in second resilient element urges is clamped close to the second measuring jaw, and from the left and right sides
The gauge block group measures；
Reading is compared with the nominal length of the gauge block group, to obtain the error of indication of the vernier measuring tool.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910515800.XA CN110196005B (en) | 2019-06-14 | 2019-06-14 | Calibration device and method for nuclear power radioactive vernier measuring tool |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910515800.XA CN110196005B (en) | 2019-06-14 | 2019-06-14 | Calibration device and method for nuclear power radioactive vernier measuring tool |
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| CN110196005B CN110196005B (en) | 2021-01-26 |
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