CN1556382A - Probe type composite pressure sensor - Google Patents
Probe type composite pressure sensor Download PDFInfo
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- CN1556382A CN1556382A CNA2003101098865A CN200310109886A CN1556382A CN 1556382 A CN1556382 A CN 1556382A CN A2003101098865 A CNA2003101098865 A CN A2003101098865A CN 200310109886 A CN200310109886 A CN 200310109886A CN 1556382 A CN1556382 A CN 1556382A
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- probe
- elastic body
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- girder elastic
- girder
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Abstract
The invention includes probe, elastomer of tangential force cantilever, ball, pretension bolt, elastomer of forward force cantilever and bonded resistance strain gauge. Connected relation is as following: probe passing through elastomer of tangential force cantilever contacts to ball, which touches forward force cantilever; ball and pretension bolt are fixed on elastomer of forward force cantilever correspondingly; elastomer of tangential force cantilever through probe, and pretension bolt are fixed on mould correspondingly; elastomer of forward force cantilever through screw is fixed on mould; bonded resistance strain gauge is pasted on both of the said elastomers. The invention is capable of measuring frictional coefficient in forming procedure of drawing sheet material in high efficiency, and provides features of small size and multipoints measurement.
Description
Technical field
The present invention relates to a kind of pressure transducer, particularly a kind of probe-type combination pressure sensor.Belong to sensor field.
Background technology
In the middle of scientific research and engineering application, usually need to measure the positive force and the tangential force of certain position simultaneously and calculate friction factor thus, especially in the process of sheet forming process, friction factor is a key factor that influences the sheet forming performance, yet in existing technology, pressure transducer or can only be used to measure positive force, or can only be used to measure tangential force, but can not measure positive force and tangential force simultaneously, the effective means of neither one can be measured positive force and tangential force simultaneously and calculate friction factor thus, have brought very big inconvenience for further data analysis.
Find by literature search, China Patent No.: 95200216.7, name is called: the pick-up unit of a kind of rubber cylinder and storeroom friction factor, this patented technology uses counterweight as the positive pressure survey instrument, measure displacement in conjunction with displacement measuring device, and then calculate an average kinetic friction coefficient.But it is big that this device can only be measured mean coefficient of kinetic sliding friction and the complex structure, volume on the face, and kinetic friction coefficient, the work space that can not be adapted to measure simultaneously a plurality of points is less, the occasion of compact conformation.In further retrieving, find the report identical or similar as yet with the present invention.
Summary of the invention
The objective of the invention is to overcome above-mentioned deficiency and defective, a kind of probe-type combination pressure sensor that can measure friction factor in the process of sheet forming process accurately, efficiently is provided, make it both can measure friction factor exactly, it is little to have volume again, can realize the characteristics of multimetering.
The present invention is achieved by the following technical solutions, the present invention includes: probe, tangential force semi-girder elastic body, ball, pretension bolt, positive force semi-girder elastic body, the adhesive type strain ga(u)ge, its annexation is: probe contacts by ball point with positive force semi-girder elastic body after passing tangential force semi-girder elastic body, ball and pretension bolt relative fixed are in positive force semi-girder elastic body, tangential force semi-girder elastic body by probe and pretension bolt relative fixed in die workpiece, positive force semi-girder elastic body is fixed on the die workpiece by screw, all posts the adhesive type strain ga(u)ge on positive force semi-girder elastic body and tangential force semi-girder elastic body.
The present invention adopts probe to transmit pressure, positive force is passed to positive force semi-girder elastic body, tangential force passes to tangential force semi-girder elastic body, the semi-girder elastic body produces distortion accordingly, on positive force semi-girder elastic body and tangential force semi-girder elastic body, all post the adhesive type strain ga(u)ge, according to the micro-deformation output electric signal that the semi-girder elastic body produces, measure positive force and tangential force respectively, and then can calculate the friction factor of this measurement point.
The present invention has also used ball-type positive force metering system, has overcome the influence of the directivity of power, has guaranteed the accuracy of measurement result.Pretension bolt is used to regulate the pretightning force when measuring, and can adjust the sensitivity of probe.The head dimensions of probe used herein can be arranged a plurality of measurement points smaller or equal to 3mm on a face, realized multimetering.For system working space hour, need on a plurality of measurement points, measure this class problem of friction factor simultaneously and provide an effective settling mode.Fine thread (pitch is 0.5mm) has been adopted in the bottom, and the degree of stretching out of the head of fine-tuning probe is regulated the sensitivity of sensor with this.Taked double-deck cantilever beam structure, overcome the common not enough shortcoming of individual layer cantilever beam structure body rigidity, guaranteed again simultaneously to be unlikely to when taking to increase the semi-girder elastomer thickness and the sensitivity decline problem that causes in order to overcome insufficient rigidity.
When not only can collecting pull and stretch, the present invention (is not more than 10mm in certain some zone on the plate
2) real-time friction factor, and can calculate whole mean coefficient of kinetic sliding friction thus.
Characteristics of the present invention be highly sensitive, antijamming capability is strong, sensor element is few, volume is little, low price, and is applied widely, is specially adapted to the less occasion that need measure positive force and tangential force again on a plurality of measurement points simultaneously of system working space.The present invention has obtained good application in the process of sheet forming process.Practice shows: result of use is good, measuring accuracy, sensitivity height, and its antijamming capability is strong, economic actual effect.
Description of drawings
Fig. 1 structural representation of the present invention
Embodiment
As shown in Figure 1, the present invention includes: probe 1, tangential force semi-girder elastic body 2, ball 3, pretension bolt 4, positive force semi-girder elastic body 5, adhesive type strain ga(u)ge 6, its annexation is: probe 1 passes tangential force semi-girder elastic body 2 backs and contacts by 3 on ball with positive force semi-girder elastic body 5, ball 3 and pretension bolt 4 relative fixed are in positive force semi-girder elastic body 5, tangential force semi-girder elastic body 2 by probe 1 and pretension bolt 4 relative fixed in die workpiece 7, positive force semi-girder elastic body 5 is fixed on the die workpiece 7 by screw, all posts adhesive type strain ga(u)ge 6 on positive force semi-girder elastic body 5 and tangential force semi-girder elastic body 2.
Adopt small-sized probe 1 to transmit deformation, the head dimensions of probe 1 can be arranged a plurality of measurement points less than 3mm on a face.It is 0.5mm that fine thread, pitch have been adopted in the bottom, the degree of stretching out of the head of fine-tuning probe.
Claims (3)
1, a kind of probe-type combination pressure sensor, comprise: ball (3), pretension bolt (4), adhesive type strain ga(u)ge (6), it is characterized in that, also comprise: probe (1), tangential force semi-girder elastic body (2), positive force semi-girder elastic body (5), probe (1) passes tangential force semi-girder elastic body (2) back and contacts by ball (3) point with positive force semi-girder elastic body (5), ball (3) and pretension bolt (4) relative fixed are in positive force semi-girder elastic body (5), tangential force semi-girder elastic body (2) by probe (1) and pretension bolt (4) relative fixed in die workpiece (7), positive force semi-girder elastic body (5) is fixed on the die workpiece (7) by screw, all posts adhesive type strain ga(u)ge (6) on positive force semi-girder elastic body (5) and tangential force semi-girder elastic body (2).
2, probe-type combination pressure sensor according to claim 1 is characterized in that, adopts small-sized probe (1) to transmit deformation, and the head dimensions of probe (1) is arranged a plurality of measurement points smaller or equal to 3mm on a face.
3, probe-type combination pressure sensor according to claim 1 is characterized in that fine thread has been adopted in the bottom, and pitch is 0.5mm, the degree of stretching out of fine setting end of probe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200310109886 CN1243224C (en) | 2003-12-30 | 2003-12-30 | Probe type composite pressure sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200310109886 CN1243224C (en) | 2003-12-30 | 2003-12-30 | Probe type composite pressure sensor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1556382A true CN1556382A (en) | 2004-12-22 |
| CN1243224C CN1243224C (en) | 2006-02-22 |
Family
ID=34335433
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200310109886 Expired - Fee Related CN1243224C (en) | 2003-12-30 | 2003-12-30 | Probe type composite pressure sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1243224C (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102141596A (en) * | 2010-12-29 | 2011-08-03 | 豪勉科技股份有限公司 | Point measurement system capable of controlling point measurement pressure |
| CN102169159A (en) * | 2011-01-04 | 2011-08-31 | 豪勉科技股份有限公司 | Point measurement device with strain gauge |
| CN102008769B (en) * | 2009-09-08 | 2013-10-23 | 北京谊安医疗系统股份有限公司 | Force transmission device and injection pump |
| CN105014106A (en) * | 2015-07-29 | 2015-11-04 | 华北电力大学（保定） | Device of measuring turning tool minor flank and part machined surface frictional characteristic |
| WO2019205331A1 (en) * | 2018-04-26 | 2019-10-31 | 深圳大学 | Writing implement friction testing apparatus and testing method thereof |
-
2003
- 2003-12-30 CN CN 200310109886 patent/CN1243224C/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102008769B (en) * | 2009-09-08 | 2013-10-23 | 北京谊安医疗系统股份有限公司 | Force transmission device and injection pump |
| CN102141596A (en) * | 2010-12-29 | 2011-08-03 | 豪勉科技股份有限公司 | Point measurement system capable of controlling point measurement pressure |
| CN102141596B (en) * | 2010-12-29 | 2014-02-05 | 豪勉科技股份有限公司 | Point measurement system capable of controlling point measurement pressure |
| CN102169159A (en) * | 2011-01-04 | 2011-08-31 | 豪勉科技股份有限公司 | Point measurement device with strain gauge |
| CN105014106A (en) * | 2015-07-29 | 2015-11-04 | 华北电力大学（保定） | Device of measuring turning tool minor flank and part machined surface frictional characteristic |
| WO2019205331A1 (en) * | 2018-04-26 | 2019-10-31 | 深圳大学 | Writing implement friction testing apparatus and testing method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1243224C (en) | 2006-02-22 |
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| C06 | Publication | ||
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
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Owner name: SHANGHAI MOULD TECHNOLOGY INSTITUTE CO., LTD. Free format text: FORMER OWNER: SHANGHAI JIAOTONG UNIV. Effective date: 20090814 |
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| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20090814 Address after: No. 55 West Guangyuan Road, Shanghai Patentee after: Shanghai Mould Technology Research Institute Co., Ltd. Address before: No. 800, Dongchuan Road, Shanghai, Minhang District Patentee before: Shanghai Jiao Tong University |
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| C56 | Change in the name or address of the patentee | ||
| CP03 | Change of name, title or address |
Address after: No. 471, Guiping Road, Shanghai Patentee after: Shanghai Mould Technology Research Institute Co., Ltd. Address before: No. 55 West Guangyuan Road, Shanghai Patentee before: Shanghai Mould Technology Research Institute Co., Ltd. |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20060222 Termination date: 20141230 |
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| EXPY | Termination of patent right or utility model |