CN100405033C - Strain type force sensor for multiple components - Google Patents
Strain type force sensor for multiple components Download PDFInfo
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- CN100405033C CN100405033C CNB2005100572336A CN200510057233A CN100405033C CN 100405033 C CN100405033 C CN 100405033C CN B2005100572336 A CNB2005100572336 A CN B2005100572336A CN 200510057233 A CN200510057233 A CN 200510057233A CN 100405033 C CN100405033 C CN 100405033C
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- elastic body
- component part
- hole
- multiple components
- force sensor
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Abstract
A force transducer of strain type with multicomponent is prepared as connecting an elastic body with at least three components in round shell, setting force bearing point at top end of each said component, arranging four horizontal holes symmetrically under force bearing point for making thickness of elastic body be decreased, sticking a resistance foil gauge on each center of two surfaces on elastic body between symmetric holes, connecting said foil gauges by wire to form a measurement electric bridge and setting strip through-hole on each component for forming simple support beam.
Description
Technical field
The present invention relates to a kind of force transducer, particularly a kind of simultaneously-measured strain type force sensor for multiple components in many forces that is used for.
Background technology
At present ferrous metal, non-ferrous metal or on-metallic article are carried out the ionization meter test, more advanced is that the utilization cupping testing machine is with corresponding constant force, sample is clamped between pressing mold and the pad mould, and with the regulation the ball shape drift apply horizontal stamping press to sample, sample is pressed in the pressing mold, till sample occurred penetrating the crack, the degree of depth of drift pressing in sample was the cupping indicating value of sample at this moment.And the factor that influences the AEG-process result mainly contains the relative position error of sample clamping force, punch test power, drift displacement depth measurement mechanism and drift, pressing mold and pad mould.Sample clamping force particularly, stressed even around requiring, the sample crack of generally reflecting at present AEG-process appears at pressing mold periphery somewhere, this is that clamping force is inhomogeneous and cause, but be used for the accurate device of measuring of multiple spot static force while and still belong to blank at present, so the calibration of clamping force does not have corresponding means solution always yet.The JJG583-1988 cupping testing machine vertification regulation that China is existing, its calibration method adopts indirect calibration method, also only be to rely on the force transducer of single-point to obtain data indirectly, because the position and the user mode of calibrating are inconsistent, can't determine its meter characteristic, therefore cause the detection method of this vertification regulation to implement.
Summary of the invention
The objective of the invention is does not have corresponding device thereof and means at the calibration of the clamping force of existing cupping testing machine always, a kind of strain type force sensor for multiple components is provided, it can measure the clamping force of cupping testing machine simultaneously by a plurality of stress points, solve the calibration problem of the clamping force of cupping testing machine, and filled up the blank that the multiple spot static force is accurately measured simultaneously.
The object of the present invention is achieved like this: the described annular shell elastomeric base interior with being located at the annular shell is connected, elastic body has three component parts at least, the upper surface of each component part of elastic body is equipped with the stress point of a projection, the stress point below is provided with four transverse holes symmetrically, two hole horizontals of each side are arranged side by side, the circle centre position on the elastomeric walls two sides between the hole of symmetry respectively posts a resistance strain gage, the resistance strain gage of each component part connects to form a measuring bridge by lead, each component part of elastic body is equipped with and makes component part form the strip through-hole of simple beam structure, and strip through-hole is positioned at the below in two levels hole arranged side by side.
Described elastic body and base are one-piece construction.
Be useful on the gap that isolates each component between described elastomeric each component part, this gap is run through base and is formed perforation.
Described elastomeric component parts etc. divide 360 ° of circles.
The equal in length of described elastomeric each component part.
Described elastomeric base lower end is useful on the step cutting pattern of location.
The stress point that the upper surface of described each component part is provided with to the distance at elastic body center equates, between four holes of stress point corresponding to symmetry.
Elastomeric walls between the hole of described symmetry is being evenly distributed in four through holes.
Owing to adopted such scheme, the described annular shell elastomeric base interior with being located at the annular shell is connected, and elastic body has three component parts at least, and elastomeric component part etc. divide 360 ° of circles, the equal in length of each component part.The upper surface of each component part of elastic body is equipped with the stress point of a projection, stress point below is provided with four symmetrically and makes the transverse holes that resistance strain gage place wall thickness reduces is set on the elastic body, two hole horizontals of each side are arranged side by side, the circle centre position on the elastomeric walls two sides between the hole of symmetry is respectively established a resistance strain gage, and four resistance strain gages of each component part connect to form a measuring bridge by lead.Make this sensor when measuring the clamping force of cupping testing machine, the clamping force of cupping testing machine is put forth effort on the stress point of the projection on each component part of elastic body by press mold and pad mould, act on pairing component part elastic body by each stress point, and by the measuring bridge formed by four resistance strain gages simultaneously from each component part record stressed data, the orientation of accurate numerical value and stress point is provided for the clamping force of calibration cupping testing machine.Especially below the stress point of the projection that each component part of elastic body is provided with, by four horizontal holes are set symmetrically, and the elastomeric walls between the hole of symmetry is being evenly distributed in four through holes, the sensitivity that reduces elastomeric linear error and improve elastic body strain responses under pressure.
Be useful on the gap that isolates each component between described elastomeric each component part, make when measuring not influence each other between each component, guarantee to record accurate values from each component.
Each component part of described elastic body is equipped with and makes component part form the strip through-hole of simple beam structure, and each component part forms simple beam structure, is convenient to distortion and amplifies calculating.
Described elastomeric base lower end is useful on the step cutting pattern of location, this base is slidingly matched with the annular cover that is used to locate that is enclosed within on the pad mould of cupping testing machine, make this force sensor for multiple components rotate corresponding angle when measuring once more, its right alignment is constant.
Described elastic body with and the base of lower end be the one-piece construction of one processing, only have pressurized position elastic deformation when making the elastic body pressurized, elastic body does not produce relative motion, and the accuracy of measurement and reliability are guaranteed.
The present invention is simple in structure, and can measure simultaneously a plurality of stress points, and measure accurately, dependable performance, and also can be used for distributed forces such as stamping press, extruding force, multiple spot force measurement.
The invention will be further described below in conjunction with drawings and Examples.
Description of drawings
Fig. 1 is the structure diagram of a kind of embodiment of the present invention;
Fig. 2 is that the A-A of Fig. 1 is to view;
Fig. 3 is the structure diagram of another kind of embodiment of the present invention;
Location drawing when Fig. 4 tests cupping testing machine for the present invention.
Embodiment
Referring to Fig. 1, Fig. 2, an elastic body 11 that four component parts are arranged is set in annular shell 2, the cup dolly 3 of elastic body 11 is fastenedly connected on annular shell 2 by bolt 9.Four component parts of described elastic body 11 etc. divide 360 ° of circles, and the equal in length of each component part is useful on the gap 7 that isolates each component between four component parts of elastic body 11, and this gap 7 is run through base 3 and formed perforation.Cup dolly 3 lower ends of described elastic body 11 are useful on the step cutting pattern of location, and this base 3 is the one-piece construction of one machine-shaping with elastic body 11.The upper surface of each component part of described elastic body 11 is equipped with the stress point 1 of a projection, and this stress point 1 is centered close to the vertical symmetrical plane of each component part.Stress point 1 below is provided with four transverse holes 5 symmetrically, and two hole horizontals of each side are arranged side by side.The stress point 1 of each component part to the distance at elastic body 11 centers equates, between four holes 5 of stress point 1 corresponding to symmetry.Elastic body wall thickness 1mm between the hole 5 of symmetry, the circle centre position on this elastomeric walls two sides respectively posts a resistance strain gage 6, and four resistance strain gages 6 of each component part connect to form a measuring bridge by lead.Be evenly equipped with four small through hole 4,10 on the elastomeric walls circumference between the hole 5 of symmetry, wherein two holes 4 are positioned on the diameter coordinate X-axis, and two holes 10 are positioned on the diameter coordinate Y-axis.Each component part of elastic body 11 is equipped with and makes this component part form the strip through-hole 8 of simple beam structure, and strip through-hole 8 is positioned at the below in two levels hole 5 arranged side by side, the length of strip through-hole 8 approximately greater than the distance between the outer end in two holes arranged side by side.Because the distance on the cupping testing machine between the lower pressed film is very limited, the height≤30mm of elastic body 11 is the most suitable, and elastomeric elastic deformation can not be excessive, in order to avoid change the former duty of tested machinery.
Referring to Fig. 3, present embodiment and the foregoing description compare, and removing elastic body 11 is three component parts, and three component parts etc. divide beyond 360 ° of circles, and remaining structure and connected mode are all same as the previously described embodiments.
Elastic body 11 that should the variant force sensor for multiple components also can be provided with more component part according to the needs of tested machinery.
Referring to Fig. 4, with should the variant force sensor for multiple components during clamping force of test cupping testing machine, should be placed between the pressing mold 12 and pad mould 13 of cupping testing machine by the variant force sensor for multiple components, the base 3 of elastic body 11 and the annular that is used to the locate cover 14 that is enclosed within on the pad mould 13 are slidingly matched.During test, the pressing mold 12 of cupping testing machine descends, clamping force between pressing mold 12, the pad mould 13 acts on pairing component part elastic body by the stress point 1 of each component part of elastic body 11, and by the measuring bridge formed by four resistance strain gages simultaneously from each component part record stressed data, the orientation of accurate numerical value and stress point is provided for the clamping force of calibration cupping testing machine.Rise pressing mold 12, the annular that is used to locate is overlapped 14 invariant positions, should rotate a certain angle by the variant force sensor for multiple components, at this moment, the corresponding variation takes place in the orientation of each stress point 1, fall pressing mold 12 and apply same clamping force once more, measure each component part under this angle stressed data.In like manner, according to said method measure the suffered clamping force of each component part under the different angles successively, can draw the unevenness (azimuthal error) of the clamping force of cupping testing machine,, the clamping force of cupping testing machine is proofreaied and correct as certificate.
Claims (5)
1. strain type force sensor for multiple components, comprise annular shell (2) and resistance strain gage (6), it is characterized in that: the base (3) of the elastic body (11) that described annular shell (2) is interior with being located at annular shell (2) is connected, elastic body (11) has three component parts at least, component parts etc. divide 360 ° of circles, the equal in length of each component part of elastic body (11), the upper surface of each component part of elastic body (11) is equipped with the stress point (1) of a projection, stress point (1) below is provided with four transverse holes (5) symmetrically, two hole horizontals of each side are arranged side by side, the circle centre position on the elastomeric walls two sides between the hole (5) of symmetry respectively posts a resistance strain gage (6), the resistance strain gage of each component part (6) connects to form a measuring bridge by lead, each component part of elastic body (11) is equipped with and makes component part form the strip through-hole (8) of simple beam structure, and strip through-hole (8) is positioned at the below in two levels hole arranged side by side.
2. strain type force sensor for multiple components according to claim 1 is characterized in that: described elastic body (11) is an one-piece construction with base (3).
3. strain type force sensor for multiple components according to claim 1 is characterized in that: be useful on the gap (7) that isolates each component part between each component part of described elastic body (11), this gap is run through base (3) and is formed perforation.
4. strain type force sensor for multiple components according to claim 1 is characterized in that: base (3) lower end of described elastic body (11) is useful on the step cutting pattern of location.
5. strain type force sensor for multiple components according to claim 1 is characterized in that: the elastomeric walls between the hole of described symmetry (5) is being evenly distributed in four through holes (4,10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100572336A CN100405033C (en) | 2005-08-19 | 2005-08-19 | Strain type force sensor for multiple components |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100572336A CN100405033C (en) | 2005-08-19 | 2005-08-19 | Strain type force sensor for multiple components |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1916578A CN1916578A (en) | 2007-02-21 |
| CN100405033C true CN100405033C (en) | 2008-07-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB2005100572336A Expired - Fee Related CN100405033C (en) | 2005-08-19 | 2005-08-19 | Strain type force sensor for multiple components |
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| CN (1) | CN100405033C (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101858802B (en) * | 2010-05-25 | 2012-05-09 | 上海应用技术学院 | Snap ring-type force sensor |
| CN103575435B (en) * | 2013-10-10 | 2015-08-19 | 南京神源生智能科技有限公司 | For the three-dimensional force sensor of automobile axle test macro |
| CN106556488B (en) * | 2016-10-13 | 2022-07-19 | 同济大学 | Strain type six-dimensional force sensor |
| JP6776151B2 (en) * | 2017-02-24 | 2020-10-28 | 日本電産コパル電子株式会社 | A strain-causing body and a force sensor equipped with the strain-causing body |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4448083A (en) * | 1981-04-13 | 1984-05-15 | Yamato Scale Company, Ltd. | Device for measuring components of force and moment in plural directions |
| JPH0772026A (en) * | 1993-05-22 | 1995-03-17 | Kyowa Electron Instr Co Ltd | Strain generating construction and multiaxis force detection sensor using the same |
| CN2221208Y (en) * | 1993-12-20 | 1996-02-28 | 合肥东华机电自动化研究所 | Multiple force and moment sensor |
| CN2421630Y (en) * | 2000-06-02 | 2001-02-28 | 哈尔滨工业大学 | Multidimensional sensor |
| CN2650092Y (en) * | 2003-11-13 | 2004-10-20 | 东南大学 | Automobile wheel multi-dimensional force measuring sensor |
| CN2881576Y (en) * | 2005-09-10 | 2007-03-21 | 重庆建设摩托车股份有限公司 | Multicomponent force sensor |
-
2005
- 2005-08-19 CN CNB2005100572336A patent/CN100405033C/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4448083A (en) * | 1981-04-13 | 1984-05-15 | Yamato Scale Company, Ltd. | Device for measuring components of force and moment in plural directions |
| JPH0772026A (en) * | 1993-05-22 | 1995-03-17 | Kyowa Electron Instr Co Ltd | Strain generating construction and multiaxis force detection sensor using the same |
| CN2221208Y (en) * | 1993-12-20 | 1996-02-28 | 合肥东华机电自动化研究所 | Multiple force and moment sensor |
| CN2421630Y (en) * | 2000-06-02 | 2001-02-28 | 哈尔滨工业大学 | Multidimensional sensor |
| CN2650092Y (en) * | 2003-11-13 | 2004-10-20 | 东南大学 | Automobile wheel multi-dimensional force measuring sensor |
| CN2881576Y (en) * | 2005-09-10 | 2007-03-21 | 重庆建设摩托车股份有限公司 | Multicomponent force sensor |
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| CN1916578A (en) | 2007-02-21 |
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Effective date of registration: 20151124 Address after: 400054 Banan District, Chongqing building Avenue, No. 2, building 1 Patentee after: CHONGQING CONSTRUCTION ELECTROMECHANICAL CO., LTD. Address before: Zheng Jie 400050 Xiejiawan Jiulongpo District of Chongqing City No. 47 Patentee before: Chongqing Jianshe Motorcycle Co., Ltd. |
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Granted publication date: 20080723 Termination date: 20160819 |
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