CN108168414A - A kind of sheet metal strip elastic limit measuring device - Google Patents
A kind of sheet metal strip elastic limit measuring device Download PDFInfo
- Publication number
- CN108168414A CN108168414A CN201711335523.1A CN201711335523A CN108168414A CN 108168414 A CN108168414 A CN 108168414A CN 201711335523 A CN201711335523 A CN 201711335523A CN 108168414 A CN108168414 A CN 108168414A
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- sheet metal
- metal strip
- measured
- elastic limit
- measuring device
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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
- G01B5/30—Measuring arrangements characterised by the use of mechanical techniques for measuring the deformation in a solid, e.g. mechanical strain gauge
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/02—Details
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/20—Investigating strength properties of solid materials by application of mechanical stress by applying steady bending forces
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- General Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention discloses a kind of sheet metal strip elastic limit measuring devices, and including pedestal, pedestal is equipped with retained part, position portion, displacement loading section and deformation measurement part；Retained part mounting base and pressing plate, pressing plate are pushed by driving device；Position portion includes locating piece and supporting rod, and locating piece is equipped with locating slot；Displacement loading section includes motor cabinet, motor and eccentric wheel load maintainer, and motor rotational angle accurately controls, and eccentric wheel load maintainer is used to apply displacement in sample one end, and sample is made to generate flexural deformation；Deformation measurement part includes industrial camera, camera lens and light source, and light source and industrial camera are separately positioned on the both sides of sample；Chassis interior is equipped with control and electrical equipment, side are additionally provided with screen and button.The present invention applies the displacement incrementally increased to sample end, detects the set deformation volume of sample, by calculating the bending stress of sample, low cost, elastic limit that is automatic, accurate, easily measuring all kinds of sheet metal strips.
Description
Technical field
The present invention relates to sheet metal strip measuring device field, specifically a kind of sheet metal strip elastic limit measuring device.
Background technology
In mechanical manufacturing field, sheet metal strip is widely used in making all kinds of elastic parts, therefore elastic limit is weighing apparatus
Measure an important physical amount of its mechanical characteristic.In practical applications, the working stress of elastic part is generally required in its material
Elastic limit below.However, the elastic limit of material will generally use the Material Testing Machine of profession to pass through tension test ability
It obtains, needs more time and financial resources.Therefore, widely used in engineering is to measure material hardness, then pass through hardness and its
Empirical relation between mechanical property, and then weigh the performance of material.But different materials its consistency and elasticity limit is not
There is very strict correspondence, it is not intuitive enough using this measurement method result, and there are more uncertainties.Therefore,
The prior art needs further improvement and develops.
Invention content is the object of the present invention is to provide a kind of sheet metal strip elastic limit measuring device, to solve existing skill
Art there are the problem of, realize elastic limit that is automatic, accurate, easily measuring all kinds of sheet metal strips.
In order to achieve the above object, the technical solution adopted in the present invention is：
A kind of sheet metal strip elastic limit measuring device, it is characterised in that：Including be set on the base retained part, positioning region
Divide, displacement loading section and deformation measurement part, wherein position portion horizontal location place sheet metal strip to be measured, retained part folder
Position portion is detached from sheet metal strip to be measured, displacement loading unit when holding the sheet metal strip to be measured of fixed horizontality, and gripping
Divide makes the sheet metal strip to be measured end generate bending displacement downwards in sheet metal strip one end to be measured loading force, and deformation measurement part uses
Optical image acquisition mode acquires the set deformation volume of sheet metal strip to be measured.
A kind of sheet metal strip elastic limit measuring device, it is characterised in that：The position portion includes vertical peace
Mounted in base top can electric up-down supporting rod, post upper is fixedly connected with locating piece, locating piece top surface be equipped with
The wide locating slot of sheet metal strip to be measured, sheet metal strip interfix to be measured are placed in locating slot.
A kind of sheet metal strip elastic limit measuring device, it is characterised in that：The retained part includes being fixed on
Mounting base on pedestal and the suspension being suspended from above mounting base are equipped with driving device at the top of suspension, are equipped with above mounting base
Pressing plate, the driving device connect with pressing plate and pressing plate are driven to lift, and sheet metal strip one to be measured is placed in mounting base, by driving
Sheet metal strip to be measured is pressed abd fixed in mounting base by device band dynamic pressure plate.
A kind of sheet metal strip elastic limit measuring device, it is characterised in that：The driving device for hydraulic cylinder or
Cylinder or push-rod electric machine.
A kind of sheet metal strip elastic limit measuring device, it is characterised in that：The displacement loading section includes solid
It is scheduled on pedestal and the motor cabinet on sheet metal strip long side extension line direction to be measured, motor cabinet is towards sheet metal strip end to be measured
It is rotatablely equipped with runner on the seat surface in portion, motor cabinet opposite side seat surface is equipped with the motor being sequentially connected with runner, on runner partially
The heart is hinged with two connecting rods, and two connecting rod lower ends are connected with, to the wedge of sheet metal strip end to be measured applied force, by runner, two to be connected
Bar and wedge form eccentric wheel load maintainer.
A kind of sheet metal strip elastic limit measuring device, it is characterised in that：The motor is stepper motor or watches
Take motor.
A kind of sheet metal strip elastic limit measuring device, it is characterised in that：The deformation measurement part is by industry
Camera and light source are formed, and the set deformation volume of sheet metal strip to be measured are acquired by industrial camera, light source and industrial camera are respectively in
Sheet metal strip both sides to be measured form back lighting mode.
Compared with the prior art, beneficial effects of the present invention are embodied in：
1. sheet metal strip positioning to be measured to be measured and fixed accurate, raising measurement accuracy；
2. applying gradual increased displacement in sheet metal strip end circulation to be measured, repeatedly by eccentric wheel load maintainer, and pass through
Industrial camera detects the set deformation volume of sheet metal strip to be measured in real time, when the set deformation volume of sheet metal strip end to be measured reaches pre-
The parameters such as the displacement, sheet metal strip thickness to be measured, the length that apply when can pass through test during definite value are by calculating automatically derived treat
Survey the elastic limit of sheet metal strip material；
3. using back lighting mode, the edge feature of sheet metal strip to be measured protrudes, and the accuracy of detection of industrial camera is high；
4. installation sheet metal strip to be measured, and process can be measured automatically after passing through key-press input relevant parameter, and passes through screen
Curtain shows measurement result, easy to operate；
5. whole device is substantially reduced relative to Material Testing Machine, cost.
Description of the drawings
Fig. 1 is a kind of structure diagram of sheet metal strip elastic limit measuring device of the present invention.
Fig. 2 is that the side of sheet metal strip to be measured in a kind of sheet metal strip elastic limit measuring device loading procedure of the present invention shows
It is intended to.
Fig. 3 is a kind of work flow diagram of sheet metal strip elastic limit measuring device of the present invention.
Wherein：1st, pedestal；2nd, pressing plate；3rd, driving device；4th, light source；5th, eccentric wheel load maintainer；6th, motor；7th, motor
Seat；8th, locating piece；801st, locating slot；9th, supporting rod；10th, camera lens；11st, industrial camera；12nd, button；13rd, mounting base；14th, it is to be measured
Sheet metal strip；15th, screen.
Specific embodiment
The present invention provides a kind of sheet metal strip elastic limit measuring device, for make the purpose of the present invention, technical solution and
Effect is clearer, clear and definite, and the present invention is described in more detail below.It should be appreciated that specific embodiment described herein
It is only used to explain the present invention, be not intended to limit the present invention.
The present invention provides a kind of sheet metal strip elastic limit measuring device, as depicted in figs. 1 and 2, including pedestal 1,
Pedestal 1 is equipped with retained part, position portion, displacement loading section and deformation measurement part；Retained part includes mounting base
13, one end of mounting base 13 is fixed on pedestal 1, and the other end of mounting base 13 is used to place sheet metal strip 14 to be measured, mounting base
13 top is equipped with pressing plate 2 and driving device 3, and driving device 3 can move up and down with dynamic pressure plate 2, when pressing plate 2 moves downward with
Mounting base 13 together fixes sheet metal strip 14 to be measured；Position portion include locating piece 8 and supporting rod 9, locating piece 8 be equipped with and
The wide locating slot 801 of sheet metal strip 14 to be measured, locating piece 8 and supporting rod 9 move upward to when sheet metal strip 14 to be measured is installed
Predetermined altitude, sheet metal strip 14 to be measured are first placed in the locating slot 801 on locating piece 8, then are compressed by pressing plate 2, pass through this
Kind of mode can ensure the installation direction of sheet metal strip 14 to be measured, and later, locating piece 8 and supporting rod 9 move downward, and with it is to be measured
Sheet metal strip 14 keeps certain distance.
After sheet metal strip 14 to be measured is fixed, displacement loading section loads one end of sheet metal strip 14 to be measured.Displacement
Loading section includes motor 6 and eccentric wheel load maintainer 5, and eccentric wheel load maintainer 5 is mounted on the output shaft of motor 6, motor 6
Mounted on motor cabinet 7, motor cabinet 7 is mounted on pedestal 1.Motor 6 be preferably can accurately control rotational angle stepper motor or
Person's servo motor, after motor 6 turns an angle, eccentric wheel load maintainer 5 is in contact with the surface of sheet metal strip 14 to be measured, and
Apply a downward displacement to 14 end of sheet metal strip to be measured, eccentric wheel load maintainer 5 is applied to 14 end of sheet metal strip to be measured
The size for adding displacement is related to the rotational angle of motor 6, can accurately be adjusted by the control to motor 6.It can according to the mechanics of materials
Know, when under the promotion of eccentric wheel load maintainer 5 slight bending occurs for sheet metal strip 14 to be measured, produced in sheet metal strip 14 to be measured
The parameters such as raw bending stress, size, 14 thickness of sheet metal strip to be measured, the length that the maximum value of the stress can be by applying displacement into
Row calculates, if maximum stress is less than the elastic limit of 14 material of sheet metal strip to be measured, motor 6 is with movable eccentric wheel load maintainer 5
After reset, sheet metal strip 14 to be measured will restore normal condition, but when the displacement that 14 end of sheet metal strip to be measured applies is sufficiently large
When, the maximum stress in sheet metal strip 14 to be measured exceeds the elastic limit of 14 material of sheet metal strip to be measured, and motor 6 is with movable eccentric wheel
After load maintainer 5 resets, sheet metal strip 14 to be measured cannot revert to pervious state completely, be embodied in sheet metal strip to be measured
14 ends will generate a certain size permanent deformation, which can be detected by deformation measurement part.
Deformation measurement part includes industrial camera 11 and light source 4, and industrial camera 11 is right after the reset of eccentric wheel load maintainer 5
Sheet metal strip 14 to be measured is taken pictures, and identifies and compare the permanent deformation for obtaining 14 end of sheet metal strip to be measured by image
Amount, when the set deformation volume measured reaches scheduled numerical value, you can by the way that metal tape to be measured under the load deflection is calculated
The maximum stress in bend of material 14, and pass through the elastic limit that data processing obtains 14 material of sheet metal strip to be measured.Meet to obtain
It is required that 14 image of sheet metal strip to be measured, be additionally provided with camera lens 10 on industrial camera 11, the edge for protrusion sheet metal strip 14 to be measured
Feature, light source 4 and industrial camera 11 are separately positioned on the both sides of sheet metal strip 14 to be measured, form back lighting mode.
The mating control of measuring device and electrical equipment are each provided inside pedestal 1, for convenience of operation and human-computer interaction, pedestal
1 side is additionally provided with screen 15 and button 12.
The course of work of the present invention is as follows：
Referring to Fig. 1, Fig. 2 and Fig. 3, after opening measuring device, position portion and displacement loading section carry out initialization operation, positioning
Block 8 and supporting rod 9 move upward to predetermined altitude, at this time 801 bottom surface of locating slot of locating piece 8 and 13 upper surface of mounting base etc.
It is high；The motor 6 of displacement loading section moves to initial position with movable eccentric wheel load maintainer 5；4 He of light source of deformation measurement part
Industrial camera 11 is started to work.Operating personnel position sheet metal strip 14 to be measured by the locating slot 801 of locating piece 8, and
Sheet metal strip 14 to be measured is placed in mounting base 13.Then operating personnel are by the relevant parameter of 12 input measurement of button, and
Start test, driving device 3 moves downward with dynamic pressure plate 2, together sheet metal strip 14 to be measured fixed with mounting base 13.It is fixed later
Position block 8 and supporting rod 9 move downward, and keep certain distance with sheet metal strip 14 to be measured, and motor 6 turns an angle, and drives
Eccentric wheel load maintainer 5 applies a small displacement to the end of sheet metal strip 14 to be measured, and then motor 6 adds with movable eccentric wheel
Mounted mechanism 5 resets, and then applies an equal amount of displacement to the end of sheet metal strip 14 to be measured again, so repeatedly several
It is secondary, ensure that the residual stress in sheet metal strip 14 to be measured is thoroughly discharged.Then industrial camera 11 is to sheet metal strip 14 to be measured
It takes pictures, and measures the set deformation volume of 14 end of sheet metal strip to be measured, permanent deformation or set deformation volume does not occur such as
Less than the value of default, then the displacement for applying eccentric wheel load maintainer 5 by controlling the corner of motor 6 increases one and presets
Small quantity, and loading reset is multiple in manner previously described, and it is thorough to ensure that the residual stress in sheet metal strip 14 to be measured obtains
Bottom discharges, and measures the set deformation volume of sheet metal strip 14 to be measured again later, so repeated multiple times to be until set deformation volume reaches
Then the value of system setting passes through the parameters such as displacement, 14 thickness of sheet metal strip to be measured, length that sheet metal strip 14 to be measured applies and calculates
Go out the maximum stress of sheet metal strip 14 to be measured, and pass through the elastic limit that data processing obtains 14 material of sheet metal strip to be measured, then
Measurement result is exported by screen 15.Finally, driving device 3 is moved upwards with dynamic pressure plate 2, and sheet metal strip 14 to be measured is surveyed after taking out
Amount process terminates.
Certainly, described above is only presently preferred embodiments of the present invention, should the present invention is not limited to enumerate above-described embodiment
When explanation, any those skilled in the art are all equivalent substitutes for being made, bright under the introduction of this specification
Aobvious variant, all falls within the essential scope of this specification, ought to be protected by the present invention.
Claims (7)
1. a kind of sheet metal strip elastic limit measuring device, it is characterised in that：Including be set on the base retained part, positioning
Partly, sheet metal strip to be measured, retained part are placed in displacement loading section and deformation measurement part, wherein position portion horizontal location
Position portion is detached from sheet metal strip to be measured, displacement loading when gripping the sheet metal strip to be measured of horizontality, and gripping
Part makes the sheet metal strip to be measured end generate bending displacement downwards in sheet metal strip one end to be measured loading force, and deformation measurement part is adopted
The set deformation volume of sheet metal strip to be measured is acquired with optical image acquisition mode.
2. a kind of sheet metal strip elastic limit measuring device according to claim 1, it is characterised in that：The position portion
Including be vertically installed at base top can electric up-down supporting rod, post upper is fixedly connected with locating piece, locating piece
Top surface is equipped with the locating slot wide with sheet metal strip to be measured, and sheet metal strip interfix to be measured is placed in locating slot.
3. a kind of sheet metal strip elastic limit measuring device according to claim 1, it is characterised in that：The retained part
Including the mounting base being fixed on pedestal and the suspension being suspended from above mounting base, driving device is installed at the top of suspension, is installed
Seat top is equipped with pressing plate, and the driving device connect with pressing plate and pressing plate is driven to lift, and sheet metal strip one to be measured is placed on installation
On seat, sheet metal strip to be measured is pressed abd fixed in mounting base by driving device band dynamic pressure plate.
4. a kind of sheet metal strip elastic limit measuring device according to claim 3, it is characterised in that：The driving device
For hydraulic cylinder or cylinder or push-rod electric machine.
5. a kind of sheet metal strip elastic limit measuring device according to claim 1, it is characterised in that：The displacement loading
Part includes being fixed on pedestal and the motor cabinet on sheet metal strip long side extension line direction to be measured, and motor cabinet is towards to be measured
Runner is rotatablely equipped on the seat surface of sheet metal strip end, motor cabinet opposite side seat surface is equipped with the electricity being sequentially connected with runner
Machine, bias is hinged with two connecting rods on runner, and two connecting rod lower ends are connected with for the wedge of sheet metal strip end to be measured applied force,
Eccentric wheel load maintainer is formed by runner, two connecting rods and wedge.
6. a kind of sheet metal strip elastic limit measuring device according to claim 5, it is characterised in that：The motor is step
Stepper motor or servo motor.
7. a kind of sheet metal strip elastic limit measuring device according to claim 1, it is characterised in that：The deformation measurement
Part is made of industrial camera and light source, and the set deformation volume of sheet metal strip to be measured, light source and industry are acquired by industrial camera
Camera is respectively in sheet metal strip both sides to be measured and forms back lighting mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711335523.1A CN108168414B (en) | 2017-12-14 | 2017-12-14 | Metal strip elastic limit measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711335523.1A CN108168414B (en) | 2017-12-14 | 2017-12-14 | Metal strip elastic limit measuring device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108168414A true CN108168414A (en) | 2018-06-15 |
| CN108168414B CN108168414B (en) | 2020-04-14 |
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ID=62525238
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711335523.1A Active CN108168414B (en) | 2017-12-14 | 2017-12-14 | Metal strip elastic limit measuring device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108168414B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108540919A (en) * | 2018-07-16 | 2018-09-14 | 合肥禾松信息科技有限公司 | A kind of test method of embedded computer earphone intelligent test system and the system |
| CN109238674A (en) * | 2018-09-11 | 2019-01-18 | 江苏擎弓科技股份有限公司 | Composite material automobile leaf spring quality inspection technique quality detection apparatus |
| CN109655352A (en) * | 2018-12-26 | 2019-04-19 | 安徽工程大学 | A kind of feather elasticity tester |
| CN110220464A (en) * | 2019-06-21 | 2019-09-10 | 诺博橡胶制品有限公司 | Measuring thickness device and distortional elastomer measuring method |
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| JPH0989711A (en) * | 1995-09-22 | 1997-04-04 | Hamaguchi Keiki Kogyo Kk | Flexure inspection device for mechanical product |
| CN103728186A (en) * | 2013-12-26 | 2014-04-16 | 清华大学 | On-line observable high-temperature three-point bend test system |
| CN103792145A (en) * | 2012-10-30 | 2014-05-14 | 莆田市产品质量检验所 | Overall stiffness measurement method for paper meal plate |
| CN206671088U (en) * | 2017-03-20 | 2017-11-24 | 南京航空航天大学 | A kind of miniature thin plate bending stiffness measurement device of Bit andits control |
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2017
- 2017-12-14 CN CN201711335523.1A patent/CN108168414B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0989711A (en) * | 1995-09-22 | 1997-04-04 | Hamaguchi Keiki Kogyo Kk | Flexure inspection device for mechanical product |
| CN103792145A (en) * | 2012-10-30 | 2014-05-14 | 莆田市产品质量检验所 | Overall stiffness measurement method for paper meal plate |
| CN103728186A (en) * | 2013-12-26 | 2014-04-16 | 清华大学 | On-line observable high-temperature three-point bend test system |
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Non-Patent Citations (1)
| Title |
|---|
| 程瑜洁 等: "《中华人民共和国机械行业标准 JB/T 10079-1999》", 14 May 1999 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108540919A (en) * | 2018-07-16 | 2018-09-14 | 合肥禾松信息科技有限公司 | A kind of test method of embedded computer earphone intelligent test system and the system |
| CN109238674A (en) * | 2018-09-11 | 2019-01-18 | 江苏擎弓科技股份有限公司 | Composite material automobile leaf spring quality inspection technique quality detection apparatus |
| CN109655352A (en) * | 2018-12-26 | 2019-04-19 | 安徽工程大学 | A kind of feather elasticity tester |
| CN110220464A (en) * | 2019-06-21 | 2019-09-10 | 诺博橡胶制品有限公司 | Measuring thickness device and distortional elastomer measuring method |
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| Publication number | Publication date |
|---|---|
| CN108168414B (en) | 2020-04-14 |
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