CN107356179A - A kind of three-needle measuring fixing device - Google Patents
A kind of three-needle measuring fixing device Download PDFInfo
- Publication number
- CN107356179A CN107356179A CN201710717528.4A CN201710717528A CN107356179A CN 107356179 A CN107356179 A CN 107356179A CN 201710717528 A CN201710717528 A CN 201710717528A CN 107356179 A CN107356179 A CN 107356179A
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- CN
- China
- Prior art keywords
- positioning sleeve
- fixed cover
- fixing device
- connecting rod
- adjusting screw
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
- G01B5/08—Measuring arrangements characterised by the use of mechanical techniques for measuring diameters
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- A Measuring Device Byusing Mechanical Method (AREA)
Abstract
This application discloses a kind of three-needle measuring fixing device in mechanical production devices field, including base, the base is provided with connecting rod, fixed seat is connected with the connecting rod, fixed cover is provided with the fixed seat, the fixed cover internal thread is connected with adjusting screw rod, positioning sleeve is additionally provided with fixed cover, the length sum of the adjusting screw rod and positioning sleeve is more than the length of fixed cover, the thickness of the positioning sleeve is less than the length of metering pin, the positioning sleeve is provided with three and is used for the positioning hole that metering pin passes through, and three positioning holes are distributed in isosceles triangle.Using a kind of three-needle measuring fixing device of this programme, effectively three pins can be fixed, measure more convenient, efficiency high.
Description
Technical field
The present invention relates to mechanical production devices field, and in particular to a kind of three-needle measuring fixing device.
Background technology
In Aero-Space fastener, the purposes of interference thread stud is very extensive.Interference thread stud is mainly used in
On the body of airborne vehicle, play connection anti-loose.But airborne vehicle is after a certain period of use time, the interference spiral shell of connection function is played
Line stud may loosen because of under vibration environment, cause assembly function to fail so that component comes off, therefore
Certain stud for increasing central diameter or different groups can be used to carry out from coordinating again in maintenance, so that connection is relatively reliable,
Ensure the safe handling of spacecraft.
Therefore, the required precision for the pitch diameter of thread of interference stud is just very high, manufacturing tolerance 0.02mm, is conventional
The a quarter of accuracy of thread, so, it is impossible to using the conventional meanses such as ring gauge detection or the detection of central diameter micrometer.But using three
Pin measuring method is detected, and three-needle measuring pitch diameter of external thread is a kind of method of the pitch diameter of thread of measurement indirectly, during measurement, by three
Root precision is very high, diameter identical metering pin is placed in the groove of tested screw thread, with measurement outside dimension measurement instrument such as micrometer,
Mechanical comparator etc. measures the height dimension for the isosceles triangle that three metering pins are formed, pitch, tooth further according to tested screw thread
Shape half-angle and metering pin diameter, calculate the pitch diameter of thread.The characteristics of this method is accuracy of detection height, can reach 0.001mm.At present,
When measuring the pitch diameter of thread with three-needle measuring method, inspector directly holds three metering pins and measured, and three metering pins do not have
Effect is fixed, and inspector need to repeatedly adjust the position of three pins, and measurement is wasted time and energy, less efficient, and inspector must also pass through necessarily
The training of time, it just can guarantee that the accuracy of measurement.Therefore, the efficiency using three-needle measuring how is improved, is manufacture interference spiral shell
The problem of enterprise's urgent need to resolve of stake.
The content of the invention
The invention is intended to provide a kind of three-needle measuring fixing device, there is no fixed technology to solve three pins in the prior art
Problem.
In order to solve the above problems, the present invention provides following scheme：A kind of three-needle measuring fixing device, including base, institute
State base and be provided with connecting rod, fixed seat is connected with the connecting rod, fixed cover, the fixed cover are provided with the fixed seat
Internal thread is connected with adjusting screw rod, and positioning sleeve is additionally provided with fixed cover, and the length sum of the adjusting screw rod and positioning sleeve is more than
The length of fixed cover, the thickness of the positioning sleeve are less than the length of metering pin, and the positioning sleeve passes through provided with three for metering pin
Positioning hole, three positioning holes in isosceles triangle be distributed.
The operation principle of this programme：Because when measuring the pitch diameter of thread with three-needle measuring method, three metering pins are in isosceles triangle
Distribution, so three positioning holes in isosceles triangle distribution are provided with positioning sleeve, because metering pin will be from the positioning of positioning sleeve
Certain length is stretched out in hole to be placed in the groove of screw thread, so the thickness of positioning sleeve is less than the length of metering pin；Positioning sleeve is consolidated
It is scheduled in fixed cover, adjusting screw rod is also threaded with fixed cover, because the length sum of adjusting screw rod and positioning sleeve is more than
The length of fixed cover, so adjusting screw rod can contact when screwing in positioning sleeve, three metering pins are respectively charged on positioning sleeve
After in positioning hole, adjusting screw rod can contact with the bottom of metering pin, so can be by metering pin in positioning hole by rotating adjusting screw rod
In move up and down, reached regulation metering pin stretch out positioning sleeve length, then fixed cover set support meanss fixed seat on,
The position for being maintained for positioning sleeve is fixed.
The beneficial effect of this programme：When measuring the pitch diameter of thread of stud using the present apparatus, three metering pins need to only be filled respectively
Enter in the positioning hole onto positioning sleeve, positioning sleeve is fitted into fixed cover, rotate adjusting screw rod, regulation metering pin stretches out positioning sleeve
Length, between stud is placed on into three metering pins, metering pin is finely tuned with hand, metering pin is entered on stud in the groove of screw thread, then
The height for the isosceles triangle that three metering pins are formed is measured with outside micrometer, in the screw thread of stud can be learnt by calculating
Footpath；For compared with the prior art, effectively three pins can be fixed, measure more convenient, efficiency high, the requirement drop to inspector
It is low.
Further, the base is provided with screwed hole, and the screwed hole is threadedly coupled with the connecting rod, connecting rod also spiral shell
Line is connected with locking nut.Because the custom of different inspectors is different, manual requirement for height is different, so on base
Provided with screwed hole, screwed hole is threadedly coupled with connecting rod, and the height of connecting rod, connecting rod regulation can be adjusted by the bar that is rotatably connected
Need to fix after to certain altitude in this position, so connecting rod is also threaded with locking nut.
Further, the fixed seat is rotatablely connected with connecting rod.Fixed seat can adjust fixation with connecting rod rotation connection
The direction of seat, you can to adjust the direction of positioning sleeve and three pins.
Further, the fixed cover includes thread bush and straight set, and the thread bush internal diameter is less than straight set, thread bush with it is described
Adjusting screw rod connects, and is provided with cylindrical gasket in the straight set, cylindrical gasket is connected with the positioning sleeve.In use, it can load
The cylindrical gasket of different-thickness, it can thus load the positioning sleeve of different size, to be convenient for measuring the spiral shell of different-diameter stud
Line central diameter.
Brief description of the drawings
Fig. 1 is a kind of structural representation of three-needle measuring fixing device of the present invention；
Fig. 2 is the structural representation of positioning sleeve in Fig. 1.
Embodiment
Below by embodiment, the present invention is further detailed explanation：
Reference in Figure of description includes：Base 1, locking nut 2, connecting rod 3, adjusting screw rod 4, fixed seat 5, tightening
Screw 6, fixed cover 7, positioning sleeve 8, positioning hole 801, stud 9, metering pin 10, bolt 11.
Embodiment is basic as shown in accompanying drawing 1 and Fig. 2：
A kind of three-needle measuring fixing device, including base 1, the top of base 1 use indent arc modeling, and bottom uses great circle dish type
Shape, the two is combined into rotation figure modelling, and when making its measurement, center of gravity is not easy to topple in the middle and lower part of rotation body axis, device all the time,
The top of base 1 machined a screwed hole, and screwed hole is threadedly coupled with connecting rod 3, and connecting rod 3 includes straightway and arc,
Straightway is provided with screw thread, and straightway is also threaded with a locking nut 2, and arc is provided with a through hole；Fixed seat 5
The thickness that two pieces of parallel the distance between lugs, lug are equal to the arc of connecting rod 3 is provided with, lug is provided with via, leads to
Hole and via are connected with a bolt 11, and connecting rod 3 and fixed seat 5 are fixed together by bolt 11, and the pine of regulating bolt 11
Tightly fixed seat 5 can be made to be rotated in connecting rod 3；A fixed cover 7 is fixed with holding screw 6 in fixed seat 5, fixed cover 7 wraps
Thread bush and straight set are included, thread bush internal diameter is less than straight set, and thread bush is connected with adjusting screw rod 4, can load different thickness in straight set
The cylindrical gasket of degree, is fixed with a positioning sleeve 8 in cylindrical gasket, and the length sum of adjusting screw rod 4 and positioning sleeve 8, which is more than, fixes
The length of set 7, the thickness of positioning sleeve 8 are less than the length of metering pin 10, and positioning sleeve 8 is provided with positioning hole 801, three positioning holes 801
It is distributed in isosceles triangle, three positioning holes 801 are connected to a metering pin 10.
When measuring the pitch diameter of thread of stud 9 using the present apparatus, three metering pins 10 need to be only respectively charged on positioning sleeve 8
In positioning hole 801, positioning sleeve 8 is fitted into fixed cover 7, rotates adjusting screw rod 4, regulation metering pin 10 stretches out the length of positioning sleeve 8,
Between stud 9 is placed on into three metering pins 10, metering pin 10 is finely tuned with hand, metering pin 10 is extend on stud 9 in the groove of screw thread, so
The height for the isosceles triangle that three metering pins 10 are formed is measured with outside micrometer afterwards, then stud 9 can be learnt by calculating
The pitch diameter of thread.
Above-described is only embodiments of the invention, and the general knowledge such as known concrete structure and characteristic is not made herein in scheme
Excessive description., without departing from the structure of the invention, can be with it should be pointed out that for those skilled in the art
Several modifications and improvements are made, these should also be considered as protection scope of the present invention, and these are implemented all without the influence present invention
Effect and practical applicability.The scope of protection required by this application should be based on the content of the claims, in specification
The records such as embodiment can be used for the content for explaining claim.
Claims (4)
- A kind of 1. three-needle measuring fixing device, it is characterised in that：Including base, the base is provided with connecting rod, the connection Fixed seat is connected with bar, is provided with fixed cover in the fixed seat, the fixed cover internal thread is connected with adjusting screw rod, fixed cover Positioning sleeve is inside additionally provided with, the length sum of the adjusting screw rod and positioning sleeve is more than the length of fixed cover, the thickness of the positioning sleeve Degree is less than the length of metering pin, and the positioning sleeve is provided with three for the positioning holes that metering pin passes through, and three positioning holes are in etc. Lumbar triangle shape is distributed.
- A kind of 2. three-needle measuring fixing device according to claim 1, it is characterised in that：The base is provided with screw thread Hole, the screwed hole are threadedly coupled with the connecting rod, and connecting rod is also threaded with locking nut.
- A kind of 3. three-needle measuring fixing device according to claim 2, it is characterised in that：The fixed seat turns with connecting rod Dynamic connection.
- A kind of 4. three-needle measuring fixing device according to claim 3, it is characterised in that：The fixed cover includes thread bush With straight set, the thread bush internal diameter is less than straight set, and thread bush is connected with the adjusting screw rod, and tubular pad is provided with the straight set Piece, cylindrical gasket are connected with the positioning sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710717528.4A CN107356179B (en) | 2017-08-21 | 2017-08-21 | Three-needle measurement fixing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710717528.4A CN107356179B (en) | 2017-08-21 | 2017-08-21 | Three-needle measurement fixing device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107356179A true CN107356179A (en) | 2017-11-17 |
| CN107356179B CN107356179B (en) | 2023-07-11 |
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ID=60287916
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710717528.4A Active CN107356179B (en) | 2017-08-21 | 2017-08-21 | Three-needle measurement fixing device |
Country Status (1)
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|---|---|
| CN (1) | CN107356179B (en) |
Citations (14)
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|---|---|---|---|---|
| CH235059A (en) * | 1939-11-25 | 1944-11-15 | Maag Max | Measuring device. |
| GB580562A (en) * | 1944-02-23 | 1946-09-12 | Mollart Engineering Company Lt | Improvements in or relating to apparatus for gauging annular bodies |
| FR955829A (en) * | 1950-01-20 | |||
| GB687622A (en) * | 1950-02-23 | 1953-02-18 | Raymond Dodge X | Improvements in or relating to self-locking threads for screws, nuts and other threaded devices |
| FR2303133A1 (en) * | 1975-03-07 | 1976-10-01 | Laroche Jean Pierre | Concrete spacer for reinforcing grid - is triangular with corner slots for two wires supporting upper tier |
| CN2583620Y (en) * | 2002-07-29 | 2003-10-29 | 天津钢管有限责任公司 | Conical thread pitch diameter calibrating gauge |
| CN102109311A (en) * | 2010-12-02 | 2011-06-29 | 贵州航太精密制造有限公司 | Device for measuring pitch diameter |
| CN202204502U (en) * | 2011-09-19 | 2012-04-25 | 贵州航太精密制造有限公司 | Device for measuring pitch diameter of external thread |
| CN203464876U (en) * | 2013-10-12 | 2014-03-05 | 广西玉柴机器股份有限公司 | Tool used for measuring cylindrical-thread pitch diameter |
| CN204373568U (en) * | 2015-01-19 | 2015-06-03 | 四川工程职业技术学院 | A kind of measurement mechanism of the pitch diameter of external thread on deflection detector |
| CN204574998U (en) * | 2015-03-23 | 2015-08-19 | 西安华欧精密机械有限责任公司 | Tray (well) diameter detector in a kind of metering pin suction type leading screw |
| WO2015154614A1 (en) * | 2014-04-11 | 2015-10-15 | 刘兴邦 | Double-bolt loose proof method |
| CN206019534U (en) * | 2016-08-15 | 2017-03-15 | 西安伊克赛尔汽车新技术有限公司 | The device of the measurement pitch diameter of thread |
| CN207214979U (en) * | 2017-08-21 | 2018-04-10 | 贵州航太精密制造有限公司 | A kind of three-needle measuring fixing device |
-
2017
- 2017-08-21 CN CN201710717528.4A patent/CN107356179B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR955829A (en) * | 1950-01-20 | |||
| CH235059A (en) * | 1939-11-25 | 1944-11-15 | Maag Max | Measuring device. |
| GB580562A (en) * | 1944-02-23 | 1946-09-12 | Mollart Engineering Company Lt | Improvements in or relating to apparatus for gauging annular bodies |
| GB687622A (en) * | 1950-02-23 | 1953-02-18 | Raymond Dodge X | Improvements in or relating to self-locking threads for screws, nuts and other threaded devices |
| FR2303133A1 (en) * | 1975-03-07 | 1976-10-01 | Laroche Jean Pierre | Concrete spacer for reinforcing grid - is triangular with corner slots for two wires supporting upper tier |
| CN2583620Y (en) * | 2002-07-29 | 2003-10-29 | 天津钢管有限责任公司 | Conical thread pitch diameter calibrating gauge |
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| CN203464876U (en) * | 2013-10-12 | 2014-03-05 | 广西玉柴机器股份有限公司 | Tool used for measuring cylindrical-thread pitch diameter |
| WO2015154614A1 (en) * | 2014-04-11 | 2015-10-15 | 刘兴邦 | Double-bolt loose proof method |
| CN204373568U (en) * | 2015-01-19 | 2015-06-03 | 四川工程职业技术学院 | A kind of measurement mechanism of the pitch diameter of external thread on deflection detector |
| CN204574998U (en) * | 2015-03-23 | 2015-08-19 | 西安华欧精密机械有限责任公司 | Tray (well) diameter detector in a kind of metering pin suction type leading screw |
| CN206019534U (en) * | 2016-08-15 | 2017-03-15 | 西安伊克赛尔汽车新技术有限公司 | The device of the measurement pitch diameter of thread |
| CN207214979U (en) * | 2017-08-21 | 2018-04-10 | 贵州航太精密制造有限公司 | A kind of three-needle measuring fixing device |
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| Publication number | Publication date |
|---|---|
| CN107356179B (en) | 2023-07-11 |
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