CN205904780U - Measurement device for first position of detaining of screw thread - Google Patents
Measurement device for first position of detaining of screw thread Download PDFInfo
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- CN205904780U CN205904780U CN201620493843.4U CN201620493843U CN205904780U CN 205904780 U CN205904780 U CN 205904780U CN 201620493843 U CN201620493843 U CN 201620493843U CN 205904780 U CN205904780 U CN 205904780U
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- screw thread
- centering
- measurement apparatus
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- pedestal
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Abstract
The utility model discloses a measurement device for first position of detaining of screw thread for the center in alignment nuclear power station pressure vessel kingbolt hole and measure the screw thread play tooth point, include: the cover that expands, the cover that expands extends and the alignment stabilizer blade established including the base with from the base, and the bottom of alignment stabilizer blade is equipped with the screw, tapering pull rod, tapering pull rod pass the base and are connected with the alignment stabilizer blade, wherein, rotate the tapering pull rod and make it promote, and the linkage changes the diameter of alignment stabilizer blade bottom screw thread. Implement the utility model discloses a measurement device for first position of detaining of screw thread, rapidly alignment nuclear power station pressure vessel kingbolt hole the center and measure the screw thread play tooth point, compact structure, the installation rate is fast, the precision is high and easy operation, the measurement process does not destroy the screw thread, and the cost is controllable.
Description
Technical field
This utility model is related to nuclear power field, the measurement apparatus that more particularly, to a kind of screw thread head button bit is put.
Background technology
In prior art, comparatively the centering of the center in nuclear plant pressure vessels main thread hole and a tooth point does not also have
Relatively straightforward measuring method.On the premise of not destroying screwed hole, it is generally entered using special tooling or optical gauge
The mode of row measurement, the measurement apparatus that existing screw thread head button bit is put, it is primarily present following technical problem:
1st, costly, economy is not high for the price of optical instrument；
2nd, metering system is loaded down with trivial details, not easy to operate.
Utility model content
Technical problem to be solved in the utility model is, provides the measurement apparatus that a kind of screw thread head button bit is put, can
The center in rapid centering nuclear plant pressure vessels kingbolt hole and measure screw thread play tooth point；Compact conformation, installation rate are fast, smart
Accuracy is high and easily operated；Measurement process does not destroy screw thread, and cost is controlled.
In order to solve above-mentioned technical problem, embodiment of the present utility model provides the measurement dress that a kind of screw thread head button bit is put
Put, the center in order to centering nuclear plant pressure vessels kingbolt hole and measure screw thread rise tooth point, comprising: expansion set, expansion set includes
Pedestal and the centering leg extending from pedestal and setting, the bottom of centering leg is provided with screw thread；Taper pull bar, taper pull bar passes through base
Seat is simultaneously connected with centering leg, and wherein, rotating taper pull bar makes it be lifted, and linkage changes the diameter of centering leg bottom thread.
Wherein, a side surface of pedestal is the first reference section in order to centering pressure vessel kingbolt hole center, the first base
Quasi- portion is 0.01mm with the axiality of measurement apparatus bottom thread；One top surface of pedestal is to play tooth point in order to centering kingbolt hole
The second reference section.
Wherein, the screw thread head measurement apparatus put of button bit also include: can be connected on machine tool chief axis in order to revise lathe
The deviation of main shaft rotation center the lever meter at positioning spindle center, wherein, lever meter looks for circle by the first reference section.
The measurement apparatus that a kind of screw thread head button bit provided by the utility model is put, have the advantages that
Firstth, rotating taper pull bar makes it be lifted, and changes the diameter of expansion set bottom thread until expansion set bottom thread compresses
On the female thread of tested screwed hole；Lever meter on machine tool chief axis looks for circle by the first reference section in measurement apparatus, to repair
The deviation of the positive machine tool chief axis centre of gyration positioning spindle center, can complete on the basis of not destroying screwed hole kingbolt and
Screw thread plays the centering of tooth point, and structure design is compact, few during beam worker.
Secondth, measuring speed, precision are high and easily operated；Easy installation and removal, cost is controlled.
Brief description
In order to be illustrated more clearly that this utility model embodiment or technical scheme of the prior art, below will be to embodiment
Or in description of the prior art the accompanying drawing of required use be briefly described it should be apparent that, drawings in the following description are only
It is some embodiments of the present utility model, for those of ordinary skill in the art, in the premise not paying creative work
Under, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is the structural representation of this utility model embodiment screw thread first button position-measurement device.
Fig. 2 is the working state schematic representation of this utility model embodiment screw thread first button position-measurement device.
Fig. 3 is that position-measurement device is relative with the female thread of tested screwed hole screws for this utility model embodiment screw thread first button
Structural representation.
Fig. 4 is the structural representation that the first screw thread detained corresponding to position-measurement device of this utility model embodiment screw thread plays tooth point
Figure.
Fig. 5 is the schematic diagram that tooth point is played in this utility model embodiment screw thread first button position measurement centering kingbolt hole.
Specific embodiment
Below in conjunction with the accompanying drawing in this utility model embodiment, the technical scheme in this utility model embodiment is carried out
Clearly and completely description is it is clear that described embodiment is only a part of embodiment of this utility model rather than whole
Embodiment.Based on the embodiment in this utility model, those of ordinary skill in the art are not under the premise of making creative work
The every other embodiment being obtained, broadly falls into the scope of this utility model protection.
Referring to the embodiment one shown in Fig. 1-Fig. 2, being this utility model screw thread first button position-measurement device.
The measurement apparatus that screw thread head button bit in the present embodiment is put, in order in centering nuclear plant pressure vessels kingbolt hole
The heart and measure screw thread rise tooth point, comprising:
Expansion set 1, expansion set includes 1 pedestal 11 and the centering leg 12 extending and setting from pedestal 11, the bottom of centering leg 12
It is provided with screw thread 120；Taper pull bar 2, taper pull bar 2 is passed through pedestal 11 and is connected with centering leg 12, wherein, rotates taper pull bar
2 make it be lifted, and linkage changes the diameter of centering leg 12 bottom thread 120.
When being embodied as, pedestal 11 is cylindrical, and it can be set to different outer from top to bottom according to actual needs
The hierarchic structure that multiple concentric columns in footpath connect.Centering leg 12 is set to 4, is in 90 degree of settings each other, and each centering props up
The bottom of foot 12 is equipped with a screw thread 120 being adapted with the female thread t of tested screwed hole it is also possible to according to actually used
Need to be set to other structures.
Preferably, the screw thread 120 of measurement apparatus bottom is set to 4 lobes of opening, to be adapted to the female thread t in kingbolt hole.
One side surface of pedestal 11 is the first reference section 11a in order to centering pressure vessel kingbolt hole center, the first base
Quasi- portion 11a is 0.01mm with the axiality of measurement apparatus bottom thread 120；One top surface of pedestal 11 is in order to centering kingbolt
The second reference section 11b of tooth point is played in hole.
Further, the screw thread head measurement apparatus put of button bit also include: can be connected on machine tool chief axis 3 in order to revise
The deviation of machine tool chief axis 3 centre of gyration the lever meter 4 at positioning spindle center, wherein, lever meter 4 passes through the first reference section 11a
Look for circle.
The effect of setting said structure is: the method that the size conversion of the female thread t of tested screwed hole is become cylinder is carried out
Measurement, using screw thread mutually screw with the positioning relation of taper fit and reach the purpose accurately measuring.Screw thread in the present embodiment
The specific embodiment of the measurement apparatus that first button bit is put can refer to the embodiment of following screw threads first button location measurement method.
The screw thread of this utility model embodiment first button position-measurement device is in the specific implementation, in conjunction with referring to Fig. 3-Fig. 5, first
First, check measurement device, checks whether taper pull bar 2 and expansion set 1 are in free rotation state, and cleans measurement apparatus lower end
The screw thread of m155x4, being threaded into measurement apparatus lower end in the screwed hole t after needing to detect and clean.Rotate taper to draw
Bar is so as to be lifted.In preferred embodiment, it is counterclockwise for so that taper pull bar is rotated with the direction of rotation that it is lifted.
Further, because screw thread 120 that the lower end of expansion set 1 is m155x4 is 4 lobes open in 90 ° of directions, when taper 2 pull bar upwards
While lifting, the diameter of 4 lobe screw threads 120 will be automatically increased, until compressing with internal thread hole t phase, as shown in Figure 5.
And then, machine tool chief axis 3 install lever meter 4, look for circle on the basis of the first reference section 11a, due to the first base
The axiality of quasi- portion 11a and measurement apparatus bottom thread is 0.01mm so as to centre of gyration deviation≤0.02mm positioning spindle
Center.
The measurement apparatus that the present embodiment screw thread head button bit is put can also realize the centering that tooth point is played in kingbolt hole: specifically,
For ease of installing and measuring, in the design of measurement apparatus, manufacturing process, all of for measurement apparatus height can be controlled size
It is made as the integral multiple of pitch 4.A tooth point for screw thread can be realized presetting on the pedestal 11 of measurement apparatus, for example, set d point
Be calculated as screw thread plays tooth point, so, on the basis of the second reference section 11b just can processing, in detection process direct measurement and
Control the position of this point, to guarantee that its positional precision reaches design requirement.
And then, can take out without by measurement apparatus behind the center in centering kingbolt hole, you can carried out the position of tooth point
Put measurement, with a basal surface of miking second reference section 11b and machine tool chief axis 3, that is, between the 3rd reference section 3c
Distance, with the handwheel on local operation station, this measurement distance is adjusted to 4 integral multiple.
Citing: the distance that such as handwheel records is 200mm, after being measured, records this coordinate in systems, removes work
Dress, installs thread restoring tool.Z-axis coordinate is calculated according to data measured, because the height of measurement apparatus is 156mm, the second base
The distance between quasi- portion b and the 3rd reference section 3c are 200mm, and the 3rd reference section 3c is 350mm with the distance of screw thread point of a knife, then:
200+156=356 (mm) this value is more than the integral multiple apart from 350mm and for 4 of the 3rd reference section 3c and screw thread point of a knife, due to surveying
Amount device rise a tooth point be path, correspond to kingbolt hole is equally path, and point of a knife corresponding be kingbolt hole big footpath；
So the numerical value that the 3rd reference section 3c is buckled apart from kingbolt hole first should be: 356-4/2=354mm, the simultaneously greater than the 3rd base
The distance of quasi- portion 3c and screw thread point of a knife, then this point recording can as z to coordinate figure and can directly will be corresponding for this point
Coordinate figure input system starts to program.When numerical value out calculated above is less than the distance of the 3rd reference section 3c and screw thread point of a knife
During 350mm, then need to add 4 integral multiple so as to be more than 350mm with this numerical value.Walk once empty knife with the program finished, with true
The accuracy of fixed number evidence.
Implement the measurement apparatus that a kind of screw thread head button bit of the present utility model is put, have the advantages that
Firstth, rotating taper pull bar makes it be lifted, and changes the diameter of expansion set bottom thread until expansion set bottom thread compresses
On the female thread of tested screwed hole；Lever meter on machine tool chief axis looks for circle by the first reference section in measurement apparatus, to repair
The deviation of the positive machine tool chief axis centre of gyration positioning spindle center, can complete on the basis of not destroying screwed hole kingbolt and
Screw thread plays the centering of tooth point, and structure design is compact, few during beam worker.
Secondth, measuring speed, precision are high and easily operated；Easy installation and removal, cost is controlled.
Claims (3)
1. the measurement apparatus that a kind of screw thread head button bit is put, the center in order to centering nuclear plant pressure vessels kingbolt hole simultaneously measures spiral shell
A tooth point of stricture of vagina is it is characterised in that include:
Expansion set, described expansion set includes pedestal and the centering leg extending from described pedestal and setting, and the bottom of described centering leg sets
There is screw thread；
Taper pull bar, described taper pull bar is passed through described pedestal and is connected with described centering leg, wherein, rotates described taper and draws
Bar makes it be lifted, and linkage changes the diameter of described centering leg bottom thread.
2. the measurement apparatus that screw thread head button bit as claimed in claim 1 is put are it is characterised in that a side surface of described pedestal is
In order to first reference section at centering pressure vessel kingbolt hole center, described first reference section is same with measurement apparatus bottom thread
Axle degree is 0.01mm；
One top surface of described pedestal is the second reference section playing tooth point in order to kingbolt hole described in centering.
3. screw thread as claimed in claim 2 head button bit is put measurement apparatus are it is characterised in that the survey put of described screw thread head button bit
Amount device also includes: can be connected in the deviation in order to revise lathe main shaft rotation center the positioning spindle on machine tool chief axis
The lever meter of the heart, wherein, described lever meter looks for circle by described first reference section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620493843.4U CN205904780U (en) | 2016-05-27 | 2016-05-27 | Measurement device for first position of detaining of screw thread |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620493843.4U CN205904780U (en) | 2016-05-27 | 2016-05-27 | Measurement device for first position of detaining of screw thread |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205904780U true CN205904780U (en) | 2017-01-25 |
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ID=57814296
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620493843.4U Active CN205904780U (en) | 2016-05-27 | 2016-05-27 | Measurement device for first position of detaining of screw thread |
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| CN (1) | CN205904780U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106002482A (en) * | 2016-05-27 | 2016-10-12 | 中广核研究院有限公司 | Measuring method and device for thread first buckle position |
-
2016
- 2016-05-27 CN CN201620493843.4U patent/CN205904780U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106002482A (en) * | 2016-05-27 | 2016-10-12 | 中广核研究院有限公司 | Measuring method and device for thread first buckle position |
| CN106002482B (en) * | 2016-05-27 | 2018-08-10 | 中广核研究院有限公司 | A kind of measurement method that screw thread head button bits are set and device |
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| GR01 | Patent grant |