CN106403756A - Long-pipe taper thread measurement device, taper plug gauge clamp and taper ring gauge clamp - Google Patents
Long-pipe taper thread measurement device, taper plug gauge clamp and taper ring gauge clamp Download PDFInfo
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- CN106403756A CN106403756A CN201610913319.2A CN201610913319A CN106403756A CN 106403756 A CN106403756 A CN 106403756A CN 201610913319 A CN201610913319 A CN 201610913319A CN 106403756 A CN106403756 A CN 106403756A
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- taper
- fixture
- groove
- thread
- standard
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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
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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
- G01B5/24—Measuring arrangements characterised by the use of mechanical techniques for measuring angles or tapers; for testing the alignment of axes
- G01B5/241—Measuring arrangements characterised by the use of mechanical techniques for measuring angles or tapers; for testing the alignment of axes for measuring conicity
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- General Physics & Mathematics (AREA)
- A Measuring Device Byusing Mechanical Method (AREA)
Abstract
The present invention discloses a long-pipe taper thread measurement device, a taper plug gauge clamp and a taper ring gauge clamp. The measurement device of the long-pipe tape thread comprises a support platform and a measurement mechanism, and also comprises a first support clamp, a second support clamp, a first taper sleeve clamp and a second taper sleeve clamp. A standard is installed on the first taper sleeve clamp and the second tape sleeve clamp, the first taper sleeve clamp is installed on an outer taper thread, and the second taper sleeve clamp is installed on an inner taper thread to allow the standard to fix with the outer taper sleeve thread and the inner taper sleeve thread; and the first support clamp and the second support clamp are installed on the support platform for measurement, and the location of the outer taper thread and the inner taper thread are completed at one time to avoid the installation location error caused by installing the standard at first and then installing the long taper tube. The long-pipe taper thread measurement device can realize measurement through one-time installation, so that the measurement precision of the measurement device is high and the measurement is simple and convenient.
Description
Technical field
The present invention relates to screw measurement technical field is and in particular to a kind of measurement apparatus of long tubing taper thread, taper plug
Rule fixture and taper ring-ga(u)ge fixture.
Background technology
In the industries such as oil, coal, have several meters, in addition ten several meters long drill pipe, beam hanger, long drill pipe, the two of beam hanger
Having there is the taper thread of connection and sealing function in end, is threaded connection, and can be linked to be hundreds of meters, or even thousands of meters of long tube,
The effect of long-time high temperature, high pressure to be born during long tube work, the taper thread at long drill pipe, beam hanger two ends is required very high,
Need to detect the comprehensive parameters of taper thread in manufacturing and using, such as base level pitch diameter, the big footpath of basal plane, basal plane path, pitch, pitch is tired out
Long-pending error, thread form angle, half of thread angle, taper etc..
Every long drill pipe, the finished product of beam hanger are made up of middle polished rod, outer cone thread and inside tapered thread, outer cone thread and interior
Taper thread is respectively welded on the two ends of middle polished rod.Long drill pipe, beam hanger finished product are referred to as long Taper Pipe, the outer cone spiral shell on long Taper Pipe
Line and inside tapered thread are referred to as long tubing taper thread.Taper thread before welding on long Taper Pipe can directly pass through holistic thread measurement
The comprehensive parameters of the instruments such as machine, gauging machine, three coordinates, one-parameter measuring instrument and tool detection taper thread or single parameter.Long tube
Class taper thread can only be detected by corresponding external thread gauge, so cannot provide accurate measurement data, there is people simultaneously
In order to affect, big, gauge specification species is various, the not high limitation of accuracy in detection;Or by one-parameter measurement various in style
Instrument carries out one-parameter detection, and using complexity, and certainty of measurement is not high;Or direct frame is in the measurement end of holistic thread measurement machine
Upper measurement, but because long Taper Pipe is very long and very heavy, existing holistic thread measurement machine is installed very inconvenient, it is installed needs
The end face wanting taper thread posts fixture plane, and therefore certainty of measurement is not high, and repeatability is also bad.
Cone gauge comprises taper thread gauge and light face cone gauge, is divided into taper plug gauge and taper ring-ga(u)ge again.Prior art
In, in the step of holistic thread measurement airborne measurements cone gauge it is:First install on fixture and demarcate basal plane rule, measure end
Face position, removes basal plane rule, then installs tested cone gauge and measure, then calculate the basal plane parameter of cone gauge.By
There is certain gap between fixture and clamp base, when being respectively mounted basal plane rule and cone gauge, because demarcation and measurement are
Installations different twice, the thrust of applying may be inconsistent, thus causing basal plane that basal plane rule calibrate and cone gauge
End face non-co-located, i.e. the certain error of basal plane rule calibration process introducing, the measurement result impact on larger cone gauge
More serious.
Content of the invention
The application provides the measurement apparatus of a kind of measurement long tubing taper thread simplicity and high precision, and cone gauge measurement letter
Just and the taper plug gauge fixture of high precision and taper ring-ga(u)ge fixture.
According in a first aspect, providing a kind of measuring method of long tubing taper thread and device in a kind of embodiment, including
Support platform and measuring mechanism, supporting table is arranged on the position of measuring mechanism measurement direction the same side, and the measuring surface of measuring mechanism sets
There is the measurement mouth for stretching out scanning needle, also include the first support fixture, the second support fixture, the first taper sleeve jig and the second cone
Sleeve clamp;First support fixture is arranged on the platform of measuring mechanism, and its upper end has clamping end, and clamping end is located at and detects mouth
Lower section, the second support fixture is movably mounted in supporting table, and its upper end has a liftable clamping end, the first support fixture and
Second support fixture is used for the long Taper Pipe of common support;First taper sleeve jig is arranged on the outer cone thread of long Taper Pipe, the second tapered sleeve
Fixture is arranged on the inside tapered thread of long Taper Pipe, and the first taper sleeve jig and the second taper sleeve jig are mounted on for determining benchmark
The standard of face position.
Further, the clamping end of the first support fixture and the second support fixture is provided with same V-groove, the second propclip
Tool can be arranged in supporting table along measurement direction with moving linearly, and the V-groove of the first support fixture and the second support fixture is symmetrical
Plane is always approximately the same plane, and is also at same plane with scanning needle.
Further, the first taper sleeve jig has a cone-shaped cavity being adapted with outer cone thread, cavity internal diameter maximum one
End is set to openend, and the minimum one end of internal diameter is blind end;First taper sleeve jig has symmetrical along cone-shaped cavity center line
Scanning groove;The blind end end face of the first taper sleeve jig is provided with along symmetrical and vertical with the scanning groove step of cone-shaped cavity center line
Face, the radius being smaller than or being equal to cavity smallest end of step surface to cone-shaped cavity center line, standard is divider, is arranged on
On step surface at two, one end of scanning groove extends on step surface, and extends to and cone-shaped cavity conducting from outside.
Further, the lower end of the first taper sleeve jig is set to the V-type knot being adapted with the V-groove of the first support fixture
Structure, V-groove bottom is provided with the groove for avoiding scanning needle measurement, and the first taper sleeve jig can be installed by the V-structure of lower end
On the clamping end of the first support fixture, by adjusting the lifting of the second support fixture, make the cone of the first taper sleeve jig after installation
Shape cavity is substantially at horizontality.
Further, the second taper sleeve jig has the outer cone body being adapted with inside tapered thread, male-tapered body largest outside diameter
One end be provided with external diameter be more than long Taper Pipe external diameter disk, be provided with circular cylindrical cavity in taper body, one end of circular cylindrical cavity is worn
Go out disk and form openend, the other end is blind end;Second taper sleeve jig is provided with along the symmetrical scanning of bullet center line
Groove, scanning groove extends to and circular cylindrical cavity conducting from outside, and scans the two ends of groove and pass the external diameter of bullet respectively
Small end and disk;Disk is provided with along symmetrical and vertical with the scanning groove groove of bullet center line, and groove is in bullet
The spacing of heart line is more than or equal to the external diameter at male-tapered body largest outside diameter end, and standard is divider, is arranged in groove at two.
Further, the lower end of disk is set to the V-structure being adapted with the V-groove of the first support fixture, the second cone
Sleeve clamp may be installed on the clamping end of the first support fixture by the V-structure of lower end, by adjusting the second support fixture
Lifting, after making installation, the bullet of the second taper sleeve jig is substantially at horizontality.
Further, it is mounted on briquetting on the step surface of the first taper sleeve jig and in the groove of the second taper sleeve jig, pressure
Block is used for fixed reference device.
Further, also include pitman, pitman is placed in the inside of long Taper Pipe, the closing of one end and the first taper sleeve jig
End connects, and the other end is connected with the blind end of the second taper sleeve jig, and pitman will be solid to the first taper sleeve jig and the second taper sleeve jig
It is scheduled on the two ends of long Taper Pipe.
Further, the measuring surface of measuring mechanism is provided with clamp base, clamp base be provided with avoidance hole, avoid hole with
The measurement mouth alignment of measuring mechanism, clamp base is provided with the groove for positioning, and the clamping end face of the first support fixture is to survey
The face of measuring mechanism is provided with projection corresponding with clamp base groove, and the first support fixture is passed through raised positioning with clamp base and pastes
By being installed together.
Further, supporting table is provided with guide rail, and guide rail is consistent with measurement direction, the lower end of the second support fixture be provided with
The groove that guide rail is adapted, the second support fixture can be slided by groove on guide rail.
Further, the second support fixture is provided with elevating mechanism, and clamping end is arranged on elevating mechanism, and elevating mechanism is used
In the upper and lower position in regulation clamping end.
According to second aspect, in a kind of embodiment, provide a kind of taper plug gauge fixture, including the feeler gauge fixture for clamping,
Also include the standard for determining taper plug gauge datum level.During measurement taper plug gauge, feeler gauge fixture is arranged in clamp base,
Feeler gauge standard and taper plug gauge are simultaneously attached on the V-groove of feeler gauge fixture, and the end face of taper plug gauge is pasted with standard
Close.
Further, feeler gauge fixture is provided with the V-groove for installing taper plug gauge, and V-groove bottom is provided with for avoiding
The groove of scanning needle measurement, feeler gauge fixture is provided with the plane reclining with clamp base, and plane is provided with for avoiding scanning needle
The slotted eye of measurement, standard is surface ga(u)ge, and standard lower end is provided with the V-structure being adapted with the V-groove of feeler gauge fixture, benchmark
Device is arranged on feeler gauge fixture by the V-structure of lower end, and the one side of standard is fitted with the plane of feeler gauge fixture.
Further, the length direction both sides of the top surface of standard and bottom surface are provided with symmetrical straight chamfering, have straight chamfering
The above-below direction of standard width be less than or equal to taper plug gauge smallest end external diameter.
Further, the top surface of standard, bottom surface, V-type face, straight fillet surface and connect with feeler gauge fixture and taper plug gauge respectively
Two tactile planes are the plane of high accuracy processing.
A kind of taper ring-ga(u)ge fixture is provided in another kind of embodiment, including the ring gauge fixture for clamping, also includes using
In determine taper ring-ga(u)ge datum level standard, measurement taper ring-ga(u)ge when, ring gauge fixture is arranged in clamp base, standard and
Taper ring-ga(u)ge is simultaneously attached on ring gauge fixture.
Further, standard has the annular solid of panel for side, and the center of panel is provided with installing hole, panel also sets
Have along centrosymmetric two mounting grooves, between installing hole and mounting groove, be provided with the avoidance hole for avoiding scanning needle measurement;
Standard is two bar blocks, and two bar blocks are separately mounted in mounting groove, the length direction two of two bar blocks opposite faces
Side is provided with symmetrical straight chamfering, and the spacing between two bar blocks is more than or equal to the external diameter at taper ring-ga(u)ge maximum end, ring gauge fixture
There is the plane for reclining, plane is provided with the projection being adapted for reference for installation device installing hole, is additionally provided with for avoiding
The avoidance hole of scanning needle measurement, standard is arranged on ring gauge fixture by installing hole.
Further, the thickness of bar blocks is more than the thickness of standard clamp face plate, and the both sides of bar blocks all protrude from face
Plate.
Further, the straight fillet surface of bar blocks and side are the plane that high accuracy is processed.
According to the measurement apparatus of the long tubing taper thread of above-described embodiment, due to standard being arranged on the first taper sleeve jig
On the second taper sleeve jig, and the first taper sleeve jig is arranged on outer cone thread, and the second taper sleeve jig is arranged on inside tapered thread,
Standard is fixed with outer cone thread and inside tapered thread respectively, then is arranged on by the first support fixture and the second support fixture
Can measure on measuring mechanism and supporting table, disposably complete the datum level positioning of outer cone thread and inside tapered thread and bore spiral shell
Line measures, it is to avoid first reference for installation device measurement, then installs the installation position error that long Taper Pipe brings, and this measurement apparatus can pass through
Once mounting realizes measurement, therefore the certainty of measurement of this measurement apparatus is high and measures easy.Above-mentioned cone gauge fixture, effectively disappears
Except installing the error brought twice, greatly reduce installation difficulty.Additionally, the feature contour of standard is two planes, plane
Machining accuracy be easier to ensure, software matching simultaneously is more accurate, improve the precision of measurement cone gauge.
Brief description
Fig. 1 is the structural representation of the measurement apparatus of long tubing taper thread in the embodiment of the present invention one;
Fig. 2 is the structural representation of the first support fixture in the embodiment of the present invention one;
Fig. 3 is the structural representation of the first taper sleeve jig in the embodiment of the present invention one;
Fig. 4 is the structural representation of the second taper sleeve jig in the embodiment of the present invention one;
Fig. 5 is the structural representation of long Taper Pipe, the first taper sleeve jig and the second taper sleeve jig in the embodiment of the present invention one;
Fig. 6 is the B-B sectional view of Fig. 5;
Fig. 7 is partial enlarged drawing A and C of Fig. 6;
Fig. 8 is long Taper Pipe class outer cone thread instrumentation plan in the embodiment of the present invention one;
Fig. 9 is long Taper Pipe class outer cone thread measurement scanning trajectory diagram in the embodiment of the present invention one;
Figure 10 is the partial enlarged drawing D of Fig. 9;
Figure 11 is the structural representation of cone gauge fixture taper plug gauge fixture in the embodiment of the present invention two;
Figure 12 is the structural representation of taper standard in the embodiment of the present invention two;
Figure 13 is the measurement trajectory diagram of taper plug gauge in the embodiment of the present invention two;
Figure 14 is the structural representation of cone gauge fixture taper ring-ga(u)ge fixture in the embodiment of the present invention three;
Figure 15 is the structural representation of taper standard in the embodiment of the present invention three.
Specific embodiment
Combine accompanying drawing below by specific embodiment the present invention is described in further detail.
Embodiment one:
Provide a kind of measurement apparatus of long tubing taper thread in the present embodiment, this measurement loading amount long tubing taper thread,
Also common taper thread can be measured, this measurement apparatus can measure the comprehensive parameters of taper thread, such as base level pitch diameter, the big footpath of basal plane, base
Face path, pitch, cumulative pitch error, thread form angle, half of thread angle, taper etc..This measurement apparatus also can be to long Taper Pipe class light
Face cone rule measure.
As shown in figure 1, this measurement apparatus mainly includes supporting table 7, measuring mechanism 1, first support fixture the 3, second support
Fixture 6, the first taper sleeve jig 2 and the second taper sleeve jig 5, wherein supporting table 7 increase on the basis of the supporting table of existing equipment,
And measuring mechanism 1 is consistent with the measuring mechanism of existing equipment.First support fixture 3 is arranged on the platform of measuring mechanism 1, and second
Support fixture 6 is arranged in supporting table 7, and the first taper sleeve jig 2 and the second taper sleeve jig 5 are separately mounted to long Taper Pipe 4 two ends
On outer cone thread and inside tapered thread, support he 7 the one end being arranged on measuring mechanism 1 measurement direction, the measuring surface of measuring mechanism 1
It is provided with for stretching out the measurement mouth that scanning needle 15 measures.During measurement, long Taper Pipe 4 is arranged on the first support fixture 3 and second
On support fixture 6.
For more preferable location and installation the first support fixture 3 with position long Taper Pipe 4, in measuring mechanism 1, there is measurement mouth
Side on clamp base 101 is installed, clamp base 101 be provided with avoid scanning needle measurement avoidance hole, the first propclip
The projection 3012 of tool 3 abuts in clamp base 101.
In this example, marble slab 102 is equipped with supporting table 7, the first support fixture 3 and the second support fixture 6 are installed
On marble slab 102.
Specifically, as shown in Fig. 2 the first support fixture 3 includes clamping end 301, support bar 302 and base 303, clamping end
301 upper end is provided with V-groove, and the bottom of V-groove is additionally provided with the groove avoiding scanning needle, and the depth of groove can be according to reality
Demand sets.Clamping end 301 is fixed on base 303 by support bar 302.And at clamping end 301 towards clamp base 101
Side be provided with two projections 3012, corresponding groove is provided with clamp base 101, the first support fixture 3 passes through clamping
The projection 3012 at end 301 is spacing to be fitted in clamp base 101.
As shown in figure 1, the second support fixture 6 includes clamping end 601 and lifting platform 602, clamping end 601 and the first propclip
Clamping end 301 structure of tool 3 is consistent, and upper end also has V-groove.And the V-groove at clamping end 601 and clamping end 301 is symmetrical
Plane is approximately the same plane, i.e. both aligned, and is also at same plane with scanning needle 15.Clamping end 601 is arranged on
On lifting platform 602, the lower end of lifting platform 602 is provided with the groove for movement, corresponding is provided with straight line on marble slab 102
Guide rail 701, line slideway 701 is vertically arranged so that the second support fixture 6 moves with the V-groove at clamping end 601 and clamping end 301
After dynamic, the symmetrical plane of the V-groove at clamping end 601 and clamping end 301 is always approximately the same plane.Lifting platform 602 controls clamping
End 601 moves up and down, thus realizing the regulation at clamping end 601 and clamping end 301 short transverse, the effect of lifting platform 602:One can
To meet the measurement of the long Taper Pipe of different tube diameters size, two can be used for making up production error and alignment error.In other enforcements
In example, lifting platform 602 is replaced by devices such as gas spring, tripods.
As shown in figure 3, the socket type structure that the first taper sleeve jig 2 is closed for the one end open other end, the first taper sleeve jig 2
There is circular cone cavity 2032, one end that the internal diameter of circular cone cavity 2032 is maximum is openend, and the minimum one end of internal diameter is blind end,
Circular cone cavity 2032 is light face cavity, and is adapted with the outer cone thread of long Taper Pipe 4, and the first taper sleeve jig 2 just can be sleeved on
On the outer cone thread of long Taper Pipe 4.In order to avoid the measurement detecting external taper thread, set in the both sides up and down of the first taper sleeve jig 2
Have a symmetrical scanning groove 2031, two scanning grooves 2031 are symmetrical along the center line of circular cone cavity 2032, scanning groove 2031 along
Axial direction extends, and in radial direction, extends to circular cone cavity 2032 so that circular cone cavity 2032 and the external world lead from outside
Logical.Symmetrical step surface 2033 is additionally provided with the first taper sleeve jig 2, two step surfaces 2033 are equally along circular cone cavity 2032
Center line is symmetrical and vertical with scanning groove, and being smaller than between two step surfaces 2033 or equal in circular cone cavity 2032
The diameter of footpath smallest end, preferably slightly smaller than, conveniently disposably completes to scan.Two step surfaces 2033 are separately installed with one
Individual standard 202, standard 202 is divider, and the right angle that standard 202 abuts in step surface 2033 is installed, in order to allow scanning needle
15 can scan standard 202, and scanning groove 2031 extends axially into the upper end of step surface 2033, thus scanning needle can
Will be complete to the outer cone thread within the first taper sleeve jig 2 and outside standard 202 one-off scanning.
The lower end of the first taper sleeve jig 2 is preferably V-structure, and is adapted with the V-groove of the first support fixture 3, externally
When taper thread measures, the first taper sleeve jig 2 can pass through the V-structure location and installation of lower end on the first support fixture 3, peace
After dress, by adjusting the lifting of the second support fixture, the circular cone cavity 2032 of the first taper sleeve jig 2 is substantially at horizontality,
Outer cone thread is enable to be substantially at horizontality.
For more preferable fixed reference device 202, at the two ends of standard 202, briquetting 201 is installed, briquetting 201 passes through spiral shell
Nail is fixed on the first taper sleeve jig 2, the first taper sleeve jig 2 has four briquettings 201, respectively by upper and lower two standards
202 fix.
As shown in figure 4, the second taper sleeve jig 5 includes bullet 5012 and disk 501, bullet 5012 and disk 501 are
Integral structure, bullet 5012 is adapted so that bullet 5012 can insert with the inside tapered thread of long Taper Pipe 4 for light face cone set
It is installed in the inside tapered thread of long Taper Pipe 4, the external diameter of disk 501 is more than the external diameter of long Taper Pipe 4, disk 501 plays spacing and peace
The effect of dress.Bullet 5012 is provided with circular cylindrical cavity 5013, and circular cylindrical cavity 5013 one end passes disk 501 formation and opens
Mouthful, the other end is blind end.It is provided with symmetrical scanning groove 5011 in the both sides up and down of bullet 5012, scanning groove 5011 is along cone
The center line of body 5012 is symmetrical, and scans groove 5011 in the axial direction, two ends pass respectively bullet 5012 blind end and
Disk 501, diametrically, extends in circular cylindrical cavity 5013 so that divider can be complete from scanning up and down simultaneously from outside
Inside tapered thread.The side of disk 501 is provided with symmetrical and vertical with scanning groove two of center line along cylinder cavity 5013
Individual groove 5014, two grooves 5014 is turned on scanning groove 5011 respectively, two opposite faces of groove 5014 become fixed base
The benchmark installed surface of quasi- device 202, the spacing between the benchmark installed surface of two grooves 5014 is more than or equal to bullet 5012
The diameter of big external diameter, is preferably slightly larger than so that scanning needle can one-off scanning complete.The lower end of disk 501 be set to
The V-structure that the V-groove of the first support fixture 3 is adapted, the second tapered sleeve folder 5 tool may be installed institute by the V-structure of lower end
State on the clamping end 301 of the first support fixture 3, after installation, by adjusting the lifting of the second support fixture 6, the second taper sleeve jig 5
Bullet 5012 be substantially at horizontality.
Article two, the benchmark installed surface of groove 5014 is separately installed with standard 202, as the first taper sleeve jig 2, base
Quasi- device 202 is divider, and is provided with briquetting 201 compression reference for installation device 202.
As shown in Fig. 5, Fig. 6 and Fig. 7, in order to the first taper sleeve jig 2 and the second taper sleeve jig 5 are fixed to long Taper Pipe 4
Two ends, are provided with pitman 8 between the first taper sleeve jig 2 and the second taper sleeve jig 5, and pitman 8 is passed through by multiple unit rods 801
Screw thread is spliced, and pitman 8 is placed in the cavity of long Taper Pipe 4, and two ends pass through screw or nut and the first taper sleeve jig 2 respectively
Form dismountable connection with the second taper sleeve jig 5.As shown in figure 3, the blind end of the first taper sleeve jig 2 is provided with interior concave station
2034, the centre of interior concave station 2034 is provided with installing hole 2035, corresponding, in the closing of the bullet 5012 of the second taper sleeve jig 5
End is provided with interior concave station and installing hole.One end of pitman 8 is provided with screwed hole, and the other end is provided with external screw thread, and pitman 8 one end is passed through
Screw is fixedly connected with the second taper sleeve jig 5, and the other end is fixedly connected with the first taper sleeve jig 2 by nut 802.
The measuring method of this measurement apparatus, taking measure outer cone thread as a example, is hereafter described as inside tapered thread in bracket
Measuring principle.
As shown in Fig. 8, Fig. 9 and Figure 10, scanning needle 15 scanning survey the first taper sleeve jig 2 step surface of measuring mechanism 1
Standard 202 (or the standard 202 on the second taper sleeve jig 5 step surface 5014) on 2033, calculate step surface 2033 (or
5014) center of circle of the standard of both sides up and down 202 on coordinate in systems, because circular cone cavity 2032 small end face (or taper
Body 5012 large end face) with the measuring before measuring apart from H of step surface 2033 (or 5014), be a basic parameter of fixture.
Small end face (or large end face of inside tapered thread) and circular cone cavity 2032 small end face (or cone due to the outer cone thread on long Taper Pipe 4
Body 5012 large end face) fit together, that is, both coordinates are consistent, thus draw the outer cone thread on long Taper Pipe 4 small end face (or
The large end face of inside tapered thread) coordinate position in systems.The outer cone thread on the long Taper Pipe of contact scanning 4 is (or interior again for scanning needle
Taper thread) shaft section profile 401, analysis software can be according to the thread parameter of the outer cone thread (or inside tapered thread) on long Taper Pipe
Definition, calculate base level pitch diameter, the big footpath of basal plane, basal plane path, pitch, cumulative pitch error, thread form angle, half of thread angle,
Taper etc. parameter.
In this example, the angle of V-groove and V-structure can be 30 °, 45 °, 60 °, or other angles.
A kind of measurement apparatus of long tubing taper thread are provided, due to standard 202 is arranged on the first tapered sleeve in this example
On fixture 2 and the second taper sleeve jig 5, and the first taper sleeve jig 2 is arranged on outer cone thread, and the second taper sleeve jig 5 is arranged on interior
So that standard 202 is fixed with outer cone thread and inside tapered thread respectively on taper thread, then pass through the first support fixture 2 and second
Support fixture 5 is arranged on and can measure in supporting table 7, disposably completes the positioning of outer cone thread and inside tapered thread, keeps away
Exempt from first reference for installation device measurement, then the installation position error that long Taper Pipe 4 brings has been installed, this measurement apparatus can pass through once mounting
Realize measurement, therefore the certainty of measurement of this measurement apparatus is high and measures easy.
Embodiment two:
Present embodiments provide a kind of taper plug gauge fixture, the taper plug gauge fixture in this example is used for accurate measurement taper plug
Rule.
As shown in figure 11, taper plug gauge fixture includes the feeler gauge fixture 10 for clamping, also includes for determining taper plug
The standard 9 of rule datum level.During measurement taper plug gauge 11, standard 9 is arranged on the V-groove 1001 of feeler gauge fixture 10, taper
Feeler gauge 11 is placed on the V-groove 1001 of feeler gauge fixture 10, and is fitted with standard 9 in end.
Feeler gauge fixture 10 is provided with the V-groove 1001 for installing taper plug gauge 11, and V-groove 1001 bottom is provided with for keeping away
Allow scanning needle 15 measurement groove, meanwhile, feeler gauge fixture 10 is provided with the plane reclining with clamp base 101, and plane is provided with
For avoiding the slotted eye of probe measurement.Standard 9 is surface ga(u)ge, and regional master gage lower end is provided with suitable with the V-groove phase of feeler gauge fixture 10
The V-structure 903 joined, standard 9 is arranged on feeler gauge fixture 10 by the V-structure 903 of lower end, and the one of standard 9
Fitted with the plane of feeler gauge fixture 10 in face.
In this example, V-structure angle can be 30 °, 45 °, 60 °, or other angles.
As shown in figure 12, the length direction both sides of the top surface of standard 9 and bottom surface are provided with symmetrical straight chamfering 901, have
The width of the side above-below direction of standard 9 of straight chamfering 901 is less than or equal to taper plug gauge 11 smallest end external diameter, preferably omits
It is less than, enabling one-off scanning completes.
So that cone gauge fixture has higher precision, the top surface of standard 9, bottom surface, V-type face 903, straight chamfering
Face 901 and two planes contacting with feeler gauge fixture 10 and taper plug gauge respectively are the surface polishing that high accuracy is processed.
During measurement, single pass taper plug gauge 11 and standard 9, the feature contour according to standard 9 can calculate end face
Position, calculates the relevant parameter on taper plug gauge 11 basal plane simultaneously.
As shown in figure 13, calculation procedure is as follows:
①:The upper and lower sides inclined-plane of standard 9 extends respectively and obtains two intersection points;
②:According to the size of standard 9, two intersection points offset distance of turning left is obtained endface position;
③:According to taper plug gauge 11 standard, endface position offset distance obtains basal plane position;
④:Calculate the relevant parameter in basal plane position for the tested taper plug gauge 11.
This example provide a kind of cone gauge fixture, can be used for the measurement to taper plug gauge 11, due to by standard 9 and cone
Degree feeler gauge 11 is simultaneously attached on the V-groove 1001 of feeler gauge fixture 10, and the end face of taper plug gauge 11 is fitted with standard 9, you can
Once complete to measure, and install and the plane that scans is all the plane of high accuracy processing so that this taper plug gauge fixture has
Very high clamping certainty of measurement, and clamping measurement is convenient.
Embodiment three:
Present embodiments provide a kind of taper ring-ga(u)ge fixture, the taper ring-ga(u)ge fixture in this example is used for accurate clamping taper ring
Rule.
As shown in figure 14, including the ring gauge fixture 13 for clamping, also include the base for determining taper ring-ga(u)ge datum level
Quasi- device 12.During measurement taper ring-ga(u)ge 14, ring gauge fixture 13 is arranged in clamp base 101, and taper ring-ga(u)ge 14 is arranged on standard
On 12, standard 12 is arranged on ring gauge fixture 13.
As shown in figure 15, standard 12 has the annular solid 1202 of panel for side, and annular solid 1202 has one and cone
The annular housing 12022 that degree ring gauge 14 matches, the center of panel is provided with installing hole 12021, panel is additionally provided with along center
Two symmetrical mounting grooves, are provided with the avoidance hole for avoiding scanning needle 15 measurement between installing hole 12021 and mounting groove;Benchmark
Device 12 is two bar blocks 1201, and two bar blocks 1201 are separately mounted in mounting groove, two bar blocks 1201 opposite faces
Length direction both sides are provided with symmetrical straight chamfering 12011, and the spacing between two bar blocks 1201 is more than or equal to taper ring-ga(u)ge 14
The external diameter at maximum end, is preferably slightly larger than, enabling one-off scanning completes.Ring gauge fixture 13 has the plane for reclining
1301, plane 1301 is provided with the projection 1302 being adapted for reference for installation device 12 installing hole, is additionally provided with for avoiding scanning
The avoidance hole of pin measurement, standard 12 is arranged on ring gauge fixture 13 by installing hole 12021.The thickness of bar blocks 1201 is more than
The thickness of standard clamp face plate, the both sides of bar blocks 1201 all protrude from panel.The straight fillet surface 12011 of bar blocks and side
12012 surface polishings being high accuracy processing.
Wherein, ring gauge fixture 13 raised in the middle of be provided with the gap of budget width, gap is used for avoiding scanning needle 15 and measures.
The measuring method of this example with similar in embodiment two, during measurement, the tested taper ring-ga(u)ge of single pass 14 and base
The bar blocks 1201 of quasi- device 12, the feature contour of the bar blocks 1201 according to standard 12 can calculate endface position, count simultaneously
Calculate the relevant parameter on taper ring-ga(u)ge 14 basal plane.
The cone gauge fixture of this example installs, due to employing technique scheme, effective elimination, the error brought twice,
Greatly reduce installation difficulty.Additionally, the feature contour of the bar blocks 1201 of standard 12 is two planes, the processing essence of plane
Degree is easier to ensure, software matching simultaneously is more accurate, improves the precision of measurement cone gauge.
Use above specific case is illustrated to the present invention, is only intended to help and understands the present invention, not in order to limit
The present invention processed.For those skilled in the art, according to the thought of the present invention, can also make some simple
Deduce, deform or replace.
Claims (19)
1. a kind of measurement apparatus of long tubing taper thread, including supporting table and measuring mechanism, described supporting table is arranged on measuring machine
On the position of structure measurement direction the same side, the measuring surface of described measuring mechanism is provided with the measurement mouth for stretching out scanning needle, and it is special
Levy and be, also include the first support fixture, the second support fixture, the first taper sleeve jig and the second taper sleeve jig;Described first
Support fixture is arranged in described supporting table, and its upper end has clamping end, and described clamping end is located at the described lower section detecting mouth, described
Second support fixture is movably mounted on the platform of described measuring mechanism, and its upper end has a liftable clamping end, and described
One support fixture and the second support fixture are used for the long Taper Pipe of common support;Described first taper sleeve jig is arranged on the outer cone of long Taper Pipe
On screw thread, described second taper sleeve jig is arranged on the inside tapered thread of long Taper Pipe, and described first taper sleeve jig and the second tapered sleeve press from both sides
Standard for determining datum-plane position is mounted on tool.
2. as claimed in claim 1 the measurement apparatus of long tubing taper thread it is characterised in that described first support fixture and
The clamping end of two support fixtures is provided with same V-groove, and described second support fixture can be installed along measurement direction with moving linearly
In described supporting table, the V-groove symmetrical plane of the first support fixture and the second support fixture is always approximately the same plane, and
It is also at same plane with scanning needle.
3. as claimed in claim 2 the measurement apparatus of long tubing taper thread it is characterised in that described first taper sleeve jig has
The cone-shaped cavity being adapted with outer cone thread, the maximum one end of described cavity internal diameter is set to openend, and the minimum one end of internal diameter is
Blind end;Described first taper sleeve jig has along the symmetrical scanning groove of described cone-shaped cavity center line;Described first tapered sleeve folder
The blind end end face of tool is provided with along symmetrical and vertical with the scanning groove step surface of described cone-shaped cavity center line, and described step surface arrives
The radius being smaller than or being equal to described cavity smallest end of described cone-shaped cavity center line, described standard is divider, installs
On step surface at two, one end of described scanning groove extends on described step surface, and extends to and described taper from outside
Cavity turns on.
4. as claimed in claim 3 the measurement apparatus of long tubing taper thread it is characterised in that under described first taper sleeve jig
End is set to the V-structure being adapted with the V-groove of described first support fixture, and described V-groove bottom is provided with sweeps for avoiding
Retouch the groove of pin measurement, described first taper sleeve jig may be installed the dress of described first support fixture by the V-structure of lower end
On folder end, by adjusting the lifting of described second support fixture, make the cone-shaped cavity of described first taper sleeve jig after installation basic
It is in horizontality.
5. as claimed in claim 4 the measurement apparatus of long tubing taper thread it is characterised in that described second taper sleeve jig has
The outer cone body being adapted with inside tapered thread, one end of described male-tapered body largest outside diameter is provided with external diameter and is more than or equal to outside long Taper Pipe
The disk in footpath, is provided with circular cylindrical cavity in described taper body, one end of described circular cylindrical cavity passes described disk and forms opening
End, the other end is blind end;Described second taper sleeve jig is provided with along the symmetrical scanning groove of described bullet center line, described
Scanning groove extends to and the conducting of described circular cylindrical cavity from outside, and the two ends of described scanning groove pass the outer of bullet respectively
Footpath smallest end and disk;Described disk is provided with along symmetrical and vertical with the scanning groove groove of described bullet center line, institute
State groove to described bullet center line spacing be more than or equal to described male-tapered body largest outside diameter end external diameter, described benchmark
Device is divider, is arranged in groove at two.
6. as claimed in claim 5 the measurement apparatus of long tubing taper thread it is characterised in that the lower end of described disk is set to
The V-structure being adapted with the V-groove of described first support fixture, the V-structure that described second taper sleeve jig passes through lower end can
It is arranged on the clamping end of described first support fixture, by adjusting the lifting of described second support fixture, make described after installation
The bullet of the second taper sleeve jig is substantially at horizontality.
7. as claimed in claim 6 the measurement apparatus of long tubing taper thread it is characterised in that the platform of described first taper sleeve jig
It is mounted on briquetting, described briquetting is used for fixing described standard on terrace and in the groove of the second taper sleeve jig.
8. as claimed in claim 7 the measurement apparatus of long tubing taper thread it is characterised in that also including pitman, described company
Take over the baton and be placed in the inside of long Taper Pipe, one end is connected with the blind end of described first taper sleeve jig, the other end and described second tapered sleeve
The blind end of fixture connects, and described first taper sleeve jig and the second taper sleeve jig are fixed on the two of long Taper Pipe by described pitman
End.
9. the measurement apparatus of the long tubing taper thread as described in claim 1 or 8 are it is characterised in that the survey of described measuring mechanism
Amount face is provided with clamp base, and described clamp base is provided with avoidance hole, the measurement mouth of described avoidance hole and described measuring mechanism
Alignment, described clamp base is provided with the groove for positioning, and the clamping end face of described first support fixture is to described measuring machine
The face of structure is provided with projection corresponding with described clamp base groove, and described first support fixture passes through raised and fixture bottom
Seat positioning reclines and is installed together.
10. the measurement apparatus of the long tubing taper thread as described in claim 1 or 8 are it is characterised in that described supporting table is provided with
Guide rail, described guide rail is consistent with measurement direction, and the lower end of described second support fixture is provided with the groove being adapted with described guide rail,
Described second support fixture passes through described groove on described slide.
The measurement apparatus of the 11. long tubing taper threads as described in claim 1 or 8 are it is characterised in that described second support fixture
It is provided with elevating mechanism, described clamping end is arranged on described elevating mechanism, described elevating mechanism is used for adjusting described clamping end
Upper and lower position.
A kind of 12. taper plug gauge fixtures, it is characterised in that including the feeler gauge fixture for clamping, also include for determining taper
The standard of feeler gauge datum level, during measurement taper plug gauge, described feeler gauge fixture is arranged in clamp base, described standard and cone
Degree feeler gauge is simultaneously attached on the V-groove of feeler gauge fixture, and the end face of taper plug gauge is fitted with standard.
13. taper plug gauge fixtures as claimed in claim 12 are it is characterised in that the upper end of described feeler gauge fixture is provided with for pacifying
The V-groove of dress taper plug gauge, described V-groove bottom is provided with the groove for avoiding scanning needle measurement, and described feeler gauge fixture sets
There is the plane with clamp base, described plane is provided with the slotted eye for avoiding scanning needle measurement, described first fixture reclines peace
It is contained in the plane of described second fixture, described standard is surface ga(u)ge, and described standard lower end is provided with and described feeler gauge fixture
The V-structure that is adapted of V-groove, described standard is arranged on described feeler gauge fixture by the V-structure of lower end, and institute
The one side stating standard is fitted with the plane of described feeler gauge fixture.
14. cone gauge fixtures as claimed in claim 13 are it is characterised in that the length of the top surface of described standard and bottom surface
Direction both sides are provided with symmetrical straight chamfering, and the width with the side above-below direction of the described standard of straight chamfering is less than or equal to
Taper plug gauge smallest end external diameter.
The cone gauge fixture of 15. long tubing taper threads as claimed in claim 14 is it is characterised in that the top of described standard
Face, bottom surface, V-type face, straight fillet surface and be burnishing surface with two planes contacting with feeler gauge fixture and outer cone thread respectively.
A kind of 16. taper plug gauge fixtures, it is characterised in that including the ring gauge fixture for clamping, also include for determining taper
The standard of ring gauge datum level, during measurement taper ring-ga(u)ge, ring gauge fixture is arranged in clamp base, described standard and taper ring
Rule are simultaneously attached on ring gauge fixture.
17. cone gauge fixtures as claimed in claim 16 are it is characterised in that described standard has the ring of panel for side
Body, the center of described panel is provided with installing hole, described panel is additionally provided with along centrosymmetric two mounting grooves, described peace
It is provided with the avoidance hole for avoiding scanning needle measurement between dress hole and mounting groove;Two bar blocks are additionally provided with described standard,
Two bar blocks are separately mounted in the mounting groove of described standard, and the length direction both sides of two described bar blocks opposite faces set
There is symmetrical straight chamfering, the spacing between two described bar blocks is more than or equal to the external diameter at outer cone thread maximum end;Described ring gauge
Clamp base has the plane for reclining, and described plane is provided with convex for install that described ring gauge fixture installing hole is adapted
Rise, be additionally provided with the avoidance hole for avoiding scanning needle measurement, described standard is arranged on described ring gauge folder by described installing hole
On tool;.
18. cone gauge fixtures as claimed in claim 17 are it is characterised in that the thickness of described bar blocks is more than described panel
Thickness, the both sides of described standard all protrude from described panel.
19. cone gauge fixtures as claimed in claim 18 are it is characterised in that the straight fillet surface of described bar blocks and side are equal
For burnishing surface.
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CN201610913319.2A CN106403756B (en) | 2016-10-20 | 2016-10-20 | A kind of measuring device, taper plug gauge fixture and the taper ring-ga(u)ge fixture of long tubing taper thread |
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CN201610913319.2A CN106403756B (en) | 2016-10-20 | 2016-10-20 | A kind of measuring device, taper plug gauge fixture and the taper ring-ga(u)ge fixture of long tubing taper thread |
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Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108225143A (en) * | 2017-12-22 | 2018-06-29 | 中国平煤神马集团开封炭素有限公司 | A kind of graphite electrode nipple taper thread parameter automatization measuring device and method |
CN111780649A (en) * | 2020-07-28 | 2020-10-16 | 北京地铁车辆装备有限公司 | Taper measuring tool |
CN112013764A (en) * | 2020-08-19 | 2020-12-01 | 中车四方车辆有限公司 | Thread detection, imaging and identification equipment |
CN112757184A (en) * | 2020-12-28 | 2021-05-07 | 北京东方计量测试研究所 | Axial accurate positioning device and method for part test |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2006078327A (en) * | 2004-09-09 | 2006-03-23 | Sumitomo Metal Ind Ltd | Inspection method of threaded part of special threaded joint for oil well pipe |
CN101981408A (en) * | 2008-03-27 | 2011-02-23 | 住友金属工业株式会社 | Thread element measuring device at pipe end, thread element measuring system and thread element measuring method |
CN102889834A (en) * | 2012-08-31 | 2013-01-23 | 哈尔滨汽轮机厂有限责任公司 | Method for measuring pitch diameter of taper thread plug gauge |
CN103028890A (en) * | 2012-12-27 | 2013-04-10 | 宁夏新瑞长城机床有限公司 | Automatic drill pipe thread repair method |
CN103453823A (en) * | 2013-09-10 | 2013-12-18 | 大连理工大学 | Pipeline geometric size measuring machine |
CN203605859U (en) * | 2013-12-04 | 2014-05-21 | 深圳市中图仪器科技有限公司 | Combined clamp and screw thread measuring instrument provided with same |
CN203908483U (en) * | 2014-06-12 | 2014-10-29 | 神龙汽车有限公司 | Cam shaft oil sealing neck polishing line detection device |
-
2016
- 2016-10-20 CN CN201610913319.2A patent/CN106403756B/en active Active
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2006078327A (en) * | 2004-09-09 | 2006-03-23 | Sumitomo Metal Ind Ltd | Inspection method of threaded part of special threaded joint for oil well pipe |
CN101981408A (en) * | 2008-03-27 | 2011-02-23 | 住友金属工业株式会社 | Thread element measuring device at pipe end, thread element measuring system and thread element measuring method |
CN102889834A (en) * | 2012-08-31 | 2013-01-23 | 哈尔滨汽轮机厂有限责任公司 | Method for measuring pitch diameter of taper thread plug gauge |
CN103028890A (en) * | 2012-12-27 | 2013-04-10 | 宁夏新瑞长城机床有限公司 | Automatic drill pipe thread repair method |
CN103453823A (en) * | 2013-09-10 | 2013-12-18 | 大连理工大学 | Pipeline geometric size measuring machine |
CN203605859U (en) * | 2013-12-04 | 2014-05-21 | 深圳市中图仪器科技有限公司 | Combined clamp and screw thread measuring instrument provided with same |
CN203908483U (en) * | 2014-06-12 | 2014-10-29 | 神龙汽车有限公司 | Cam shaft oil sealing neck polishing line detection device |
Non-Patent Citations (1)
Title |
---|
杜贵锋: "基于电子展成与坐标结合原理的石油管螺纹测量仪的测控系统", 《西安理工大学学报》 * |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108225143A (en) * | 2017-12-22 | 2018-06-29 | 中国平煤神马集团开封炭素有限公司 | A kind of graphite electrode nipple taper thread parameter automatization measuring device and method |
CN108225143B (en) * | 2017-12-22 | 2023-05-23 | 开封平煤新型炭材料科技有限公司 | Automatic measuring device and method for taper thread parameters of graphite electrode connector |
CN111780649A (en) * | 2020-07-28 | 2020-10-16 | 北京地铁车辆装备有限公司 | Taper measuring tool |
CN111780649B (en) * | 2020-07-28 | 2021-12-14 | 北京地铁车辆装备有限公司 | Taper measuring tool |
CN112013764A (en) * | 2020-08-19 | 2020-12-01 | 中车四方车辆有限公司 | Thread detection, imaging and identification equipment |
CN112757184A (en) * | 2020-12-28 | 2021-05-07 | 北京东方计量测试研究所 | Axial accurate positioning device and method for part test |
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