CN106181818B - Keep the fixed-type method of tube pitch inside and outside fuel-quantity transducer - Google Patents
Keep the fixed-type method of tube pitch inside and outside fuel-quantity transducer Download PDFInfo
- Publication number
- CN106181818B CN106181818B CN201610686088.6A CN201610686088A CN106181818B CN 106181818 B CN106181818 B CN 106181818B CN 201610686088 A CN201610686088 A CN 201610686088A CN 106181818 B CN106181818 B CN 106181818B
- Authority
- CN
- China
- Prior art keywords
- nonmetallic
- annular distance
- pivot pin
- metal
- outer pipe
- 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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Links
- 238000000034 method Methods 0.000 title claims abstract description 19
- 239000002184 metal Substances 0.000 claims abstract description 61
- 229910052751 metal Inorganic materials 0.000 claims abstract description 61
- 238000007493 shaping process Methods 0.000 claims abstract description 61
- 238000010438 heat treatment Methods 0.000 claims abstract description 9
- 239000012212 insulator Substances 0.000 claims description 2
- 238000012797 qualification Methods 0.000 abstract description 4
- 230000005611 electricity Effects 0.000 description 3
- 238000005485 electric heating Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000007499 fusion processing Methods 0.000 description 2
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 2
- 239000010931 gold Substances 0.000 description 2
- 229910052737 gold Inorganic materials 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000002463 transducing effect Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B11/00—Work holders not covered by any preceding group in the subclass, e.g. magnetic work holders, vacuum work holders
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
- G01F23/22—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water
- G01F23/26—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water by measuring variations of capacity or inductance of capacitors or inductors arising from the presence of liquid or fluent solid material in the electric or electromagnetic fields
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Electromagnetism (AREA)
- Power Engineering (AREA)
- Thermal Sciences (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Rigid Pipes And Flexible Pipes (AREA)
Abstract
A kind of a kind of fixed-type method for keeping tube pitch inside and outside fuel-quantity transducer proposed by the present invention, it is desirable to provide fixed-type method that disclosure satisfy that inner and outer pipes pitch requirements.The present invention is achieved by following proposal：Before the forming, metal outer pipe (2) nonmetallic pivot pin (4) clamping will be stretched out in the pairing endoporus of two annular distance shaping jigs (1), and the both sides extension that nonmetallic pivot pin extends radially out metal outer pipe is respectively fallen in the dovetail groove of two annular distance shaping jigs, then electrical connection is wrapped in the heating wire on annular distance shaping jig, the rise temperature that is powered dissolves nonmetallic pivot pin, the nonmetallic pivot pin after dissolving is molded in annular distance shaping jig, metal outer pipe and metal inner pipe (3) are linked into an integrated entity.The present invention completes constant spacing between outer tube and inner tube using nonstandard annular distance shaping jig and is molded, solve with traditional fixing means be not easily accomplished thin-wall barrel between equidistant positioning, easily scrap, the problem of qualification rate is relatively low.
Description
Technical field
The present invention relates to it is a kind of on annular distance shaping jig carry out non-metallic shaft pin shaping, and meet inner and outer tubes it
Between spacing fix process.
Background technology
Prior art is relatively common for the method for fixed metal outer pipe and inner tube, can be directly using pivot pin in
Pipe, outer tube upper Positioning holes, then riveted with pivot pin riveting instrument.But for the electricity being made up of several concentric circles tubular pole plates
Capacity sensor is just without so simple.The sensor is to cause sensor housing and induced electricity after entering container using fluid
The change of capacitance between pole, and this change transitions is detected into oil position in container for curent change（Highly）Part.
The transducing part of capacitance type oil level sensor is a coaxial container, causes sensor housing and sensing after oil enters container
The change of capacitance between electrode, this variable quantity pass through the accurate linear and temperature-compensating of conversion and progress of circuit, output
4-20mA standard signals supply display instrument.Capacitance type sensor will meet to ensure outer tube, inner tube constant spacing, it is impossible to directly into
Type is integrated, while also to ensure that nonmetallic pivot pin riveting process inner tube, outer tube can not relatively move, with traditional fixing means
The equidistant positioning being not easily accomplished between thin-wall barrel, do not pay attention to slightly scrapping, qualification rate is relatively low.And easily cause material wave
Take, the time wastes, increase man-hour, financial cost rise.
The content of the invention
The purpose of the present invention is to be directed to weak point existing for above-mentioned technology, there is provided a kind of method is simple, easy to operate, easy
Control, meet the fixed-type method for keeping tube pitch inside and outside fuel-quantity transducer of inner and outer pipes pitch requirements.
The technical problems to be solved by the invention are achieved through the following technical solutions：One kind is kept in fuel-quantity transducer
The fixed-type method of outer tube pitch, it is characterised in that comprise the following steps, prepare one by two specular central axis
Annular distance shaping jig and nonmetallic pivot pin 4, and the pairing endoporus aperture of the annular distance shaping jig of described two speculars >=
The external diameter of metal outer pipe 2, metal outer pipe 2 and the clamping of metal inner pipe 3 are in the pairing endoporus of two annular distance shaping jigs 1, in metal
Equidistant mandrel ring 5, the inner diameter hole of metal inner pipe 3 assembling mandrel are coaxially assembled between 3 cylindrical spacing of the inner hole wall of outer tube 2 and metal inner pipe
6；The radial direction pilot hole for the fuel-quantity transducer component being made up of with nonmetallic pivot pin 4 above-mentioned concentric fits, before the forming, it will stretch
Go out the nonmetallic clamping of pivot pin 4 of metal outer pipe 2 in the pairing endoporus of two annular distance shaping jigs 1, and nonmetallic pivot pin 4 is radially
The both sides extension of metal outer pipe 2 is stretched out, respectively falls in the dovetail groove of two annular distance shaping jigs 1, then electrically connects
The heating wire in dovetail groove on annular distance shaping jig 1 is wrapped in, both sides extracting power supply cord connects alternating voltage, and heating wire is connecting electricity
Behind source, heating wire constantly generates heat and discharges heat, and the heat of release will dissolve with nonmetallic pivot pin 4, and the rise temperature that is powered is molten
Change nonmetallic pivot pin 4, the nonmetallic pivot pin 4 after dissolving is molded in annular distance shaping jig 1, annular distance shaping jig 1 passes through two
End screw, which constantly screws, causes annular distance shaping jig 1 and metal outer pipe are cylindrical to be bonded closely, ensures the nonmetallic fusion process of pivot pin 4
The tightened relative of annular distance shaping jig 1 and metal tube, metal outer pipe 2 and metal inner pipe 3 are linked into an integrated entity.
The present invention has the advantages that compared to prior art.
Method is simple, easy to operate.The present invention completes the shaping of nonmetallic pivot pin using nonstandard annular distance shaping jig, utilizes
Annular distance shaping jig carries out nonmetallic pivot pin shaping, and ensures there is constant spacing requirement between outer tube and inner tube after shaping.
Utilize equidistant mandrel ring in nonstandard annular distance shaping jig and forming process, it is ensured that have after nonmetallic pivot pin shaping reliable
Fixed to require, method is simple, easy to operate.
It is easy to control.The present invention using annular distance shaping jig 1 carry out metal outer pipe 2, metal inner pipe 3 and nonmetallic pivot pin 4 it
Between shaping, metal outer pipe 2, metal inner pipe 3 are fixed using equidistant mandrel ring 5, can when nonmetallic pivot pin is molded
Ensure constant gap between outer tube and inner tube, easily controllable, qualification rate is high, and labor intensity is small, cost-saved, improves efficiency.
Solve with traditional fixing means be not easily accomplished thin-wall barrel between equidistant positioning, easily scrap, qualification rate is relatively low to ask
Topic.
Brief description of the drawings
The concrete structure of the present invention is provided by following embodiment and its accompanying drawing, but does not therefore limit the present invention to institute
Among the scope of embodiments stated.
Fig. 1 is shaping schematic view of the present invention using the annular distance shaping jig of specular.
Fig. 2 is Fig. 1 left view.
In figure, 1 annular distance shaping jig, 2 metal outer pipes, 3 metal inner pipes, 4 nonmetallic pivot pins, 5 equidistant mandrel rings, 6 mandrels.
Embodiment
Refering to Fig. 1.According to the present invention, prepare first an annular distance shaping jig by two specular central axis and
Nonmetallic pivot pin 4, and the pairing endoporus aperture of the annular distance shaping jig of described two speculars >=external diameter of metal outer pipe 2 ,≤
Equidistant mandrel ring 5 and mandrel 6 sum for being assemblied in metal outer pipe 2 and being assemblied between the spacing of metal inner pipe 3；The He of metal outer pipe 2
The clamping of metal inner pipe 3 is cylindrical in the inner hole wall of metal outer pipe 2 and metal inner pipe 3 in the pairing endoporus of two annular distance shaping jigs 1
Equidistant mandrel ring 5, the inner diameter hole of metal inner pipe 3 assembling mandrel 6 are coaxially assembled between spacing；Nonmetallic pivot pin 4 passes through above-mentioned concentric
The radial direction pilot hole of the fuel-quantity transducer component formed is assembled, before the forming, the nonmetallic clamping of pivot pin 4 of metal outer pipe 2 will be stretched out
In the pairing endoporus of two annular distance shaping jigs 1, and nonmetallic pivot pin 4 extends radially out the both sides extension of metal outer pipe 2
Respectively fall in the dovetail groove of two annular distance shaping jigs 1, then electrical connection is wrapped in the electric heating on annular distance shaping jig 1
Silk, the rise temperature that is powered dissolve nonmetallic pivot pin 4, the nonmetallic pivot pin 4 after dissolving is molded in annular distance shaping jig 1, will
Metal outer pipe 2 and metal inner pipe 3 link into an integrated entity.
Specific clamping process：First metal inner pipe 3 and metal outer pipe 2 are put well, it is ensured that metal inner pipe 3 and metal outer pipe 2
Pin hole aligns, and is then charged into equidistant mandrel ring 5, it is ensured that metal inner pipe 3 and the distance of metal outer pipe 2 are relatively fixed, then by core
Axle 6 loads in metal inner pipe 3, is reloaded into nonmetallic pivot pin 4 after above-mentioned work is completed, last mounting ring hole forming fixture 1, really
The nonmetallic both ends of pivot pin 4 are protected to be located inside the dovetail groove of shaping jig 1.
It is to be cooled just to complete plastic shaft to deenergization after the energization a period of time of shaping jig 1 after above-mentioned clamping
The shaping work of pin.Wherein for heating wire winding in the dovetail groove of shaping jig 1, both sides extracting power supply cord connects alternating voltage；Electric heating
After being powered up, heating wire is constantly generated heat and discharges heat silk, and the heat of release will be dissolved with using nonmetallic pivot pin 4.
And annular distance shaping jig 1 by both ends screw constantly screw annular distance shaping jig 1 and metal outer pipe it is cylindrical be bonded it is close, from
And ensure the tightened relative of the nonmetallic fusion process annular distance shaping jig 1 of pivot pin 4 and metal tube and stablize relatively.
Place metal outer pipe 2, inner tube 3 and nonmetallic pivot pin 4 among annular distance shaping jig 1 to be molded, before shaping
Fixture 5 is put between inner and outer pipes, spacing is certain between ensuring inner and outer pipes by equidistant mandrel ring 5, to meet the non-gold of inner and outer pipes
Belong to the fixed-type requirement of pivot pin.
It is main member with annular distance shaping jig 1, equidistant mandrel ring 5 and mandrel 6 are insulator.Before shaping, by equidistant mandrel
Ring loads between inner and outer pipes, ensures the spacing between inner and outer pipes by adjusting the thickness of equidistant mandrel ring.Metal outer pipe 2, gold
Radially load non-metallic shaft pin 4 between category inner tube 3, nonmetallic pivot pin 4 is powered when being molded to annular distance shaping jig.
Claims (4)
- A kind of 1. fixed-type method for keeping tube pitch inside and outside fuel-quantity transducer, it is characterised in that comprise the following steps, prepare One annular distance shaping jig by two specular central axis and nonmetallic pivot pin（4）, and described two speculars Pairing endoporus aperture >=metal outer pipe of annular distance shaping jig（2）External diameter, metal outer pipe（2）And metal inner pipe（3）Clamping is two Individual annular distance shaping jig（1）Pairing endoporus in, in metal outer pipe（2）Inner hole wall and metal inner pipe（3）It is same between cylindrical spacing Axle assembles equidistant mandrel ring（5）, metal inner pipe（3）Inner diameter hole assembles mandrel（6）；With nonmetallic pivot pin（4）By above-mentioned concentric The radial direction pilot hole of the fuel-quantity transducer component formed is assembled, before the forming, metal outer pipe will be stretched out（2）Nonmetallic pivot pin（4） Clamping is in two annular distance shaping jigs（1）Pairing endoporus in, and nonmetallic pivot pin（4）Extend radially out metal outer pipe（2）'s Both sides extension, respectively fall in two annular distance shaping jigs（1）Dovetail groove in, then electrical connection be wrapped in annular distance shaping Fixture（1）Heating wire in upper dovetail groove, both sides extracting power supply cord connect alternating voltage, heating wire after being powered up, heating wire Constantly generate heat and discharge heat, the heat of release will be with nonmetallic pivot pin（4）Dissolve, the rise temperature that is powered dissolves non-metallic shaft Pin（4）, make the nonmetallic pivot pin after dissolving（4）In annular distance shaping jig（1）Middle shaping, annular distance shaping jig（1）Pass through both ends Screw constantly screws so that annular distance shaping jig（1）With metal outer pipe is cylindrical is bonded close, ensure nonmetallic pivot pin（4）Dissolved Cheng Huankong shaping jigs（1）With the tightened relative of metal tube, by metal outer pipe（2）And metal inner pipe（3）Link into an integrated entity.
- 2. the fixed-type method according to claim 1 for keeping tube pitch inside and outside fuel-quantity transducer, it is characterised in that with Annular distance shaping jig（1）For main member, equidistant mandrel ring（5）And mandrel（6）For insulator.
- 3. the fixed-type method according to claim 1 for keeping tube pitch inside and outside fuel-quantity transducer, it is characterised in that into Before type, between equidistant mandrel ring is loaded into inner and outer pipes, between being ensured by adjusting the thickness of equidistant mandrel ring between inner and outer pipes Away from.
- 4. the fixed-type method according to claim 1 for keeping tube pitch inside and outside fuel-quantity transducer, it is characterised in that In clamping process, metal inner pipe（3）And metal outer pipe（2）Pin hole alignment, be then charged into equidistant mandrel ring（5）, by mandrel （6）Load metal inner pipe（3）It is interior, it is reloaded into nonmetallic pivot pin after above-mentioned work is completed（4）, last mounting ring hole forming fixture （1）, nonmetallic pivot pin（4）Both ends are located at shaping jig（1）Inside dovetail groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610686088.6A CN106181818B (en) | 2016-08-18 | 2016-08-18 | Keep the fixed-type method of tube pitch inside and outside fuel-quantity transducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610686088.6A CN106181818B (en) | 2016-08-18 | 2016-08-18 | Keep the fixed-type method of tube pitch inside and outside fuel-quantity transducer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106181818A CN106181818A (en) | 2016-12-07 |
| CN106181818B true CN106181818B (en) | 2017-12-22 |
Family
ID=57522662
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610686088.6A Active CN106181818B (en) | 2016-08-18 | 2016-08-18 | Keep the fixed-type method of tube pitch inside and outside fuel-quantity transducer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106181818B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4730489A (en) * | 1986-10-30 | 1988-03-15 | Mutech Holland B.V. | Variable level capacitor sensor |
| CN2535787Y (en) * | 2002-03-13 | 2003-02-12 | 福建省南平现代电子技术研究所 | Capacitor-type liquid-level sensor |
| CN102427903A (en) * | 2009-05-19 | 2012-04-25 | 东芝机械株式会社 | Jig for holding thin cylindrical work, method for processing thin cylindrical work, and sheet film forming roll |
| CN102937473A (en) * | 2012-11-19 | 2013-02-20 | 成都泛华航空仪表电器有限公司 | High-temperature-difference liquid level measurement sensor |
| CN103949847A (en) * | 2014-04-21 | 2014-07-30 | 哈尔滨汽轮机厂有限责任公司 | Method of processing steam turbine control valve long thin-wall sleeve by utilizing support device |
| CN104236672A (en) * | 2014-09-30 | 2014-12-24 | 四川泛华航空仪表电器有限公司 | Multi-redundancy capacitance type oil quantity sensor |
-
2016
- 2016-08-18 CN CN201610686088.6A patent/CN106181818B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4730489A (en) * | 1986-10-30 | 1988-03-15 | Mutech Holland B.V. | Variable level capacitor sensor |
| CN2535787Y (en) * | 2002-03-13 | 2003-02-12 | 福建省南平现代电子技术研究所 | Capacitor-type liquid-level sensor |
| CN102427903A (en) * | 2009-05-19 | 2012-04-25 | 东芝机械株式会社 | Jig for holding thin cylindrical work, method for processing thin cylindrical work, and sheet film forming roll |
| CN102937473A (en) * | 2012-11-19 | 2013-02-20 | 成都泛华航空仪表电器有限公司 | High-temperature-difference liquid level measurement sensor |
| CN103949847A (en) * | 2014-04-21 | 2014-07-30 | 哈尔滨汽轮机厂有限责任公司 | Method of processing steam turbine control valve long thin-wall sleeve by utilizing support device |
| CN104236672A (en) * | 2014-09-30 | 2014-12-24 | 四川泛华航空仪表电器有限公司 | Multi-redundancy capacitance type oil quantity sensor |
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| Publication number | Publication date |
|---|---|
| CN106181818A (en) | 2016-12-07 |
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