CN106768544B - The acquisition methods and elasticity testing device of elastic slice elastic force - Google Patents
The acquisition methods and elasticity testing device of elastic slice elastic force Download PDFInfo
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- CN106768544B CN106768544B CN201611068231.1A CN201611068231A CN106768544B CN 106768544 B CN106768544 B CN 106768544B CN 201611068231 A CN201611068231 A CN 201611068231A CN 106768544 B CN106768544 B CN 106768544B
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- elastic slice
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
- G01L5/0057—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes measuring forces due to spring-shaped elements
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- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention discloses a kind of acquisition methods of elastic slice elastic force comprising: 1) preset fixed value of elastic；2) it looks for point corresponding with above-mentioned fixed value of elastic on the elastic curve of elastic slice and obtains the corresponding shift value of point, using the shift value as basis displacement；3) by the first straight line elongated segment of elastic curve, and point corresponding with said reference displacement on the extended line of first straight line section is looked for, using the corresponding value of elastic of point as the value of elastic of elastic slice.The acquisition methods of the elastic slice elastic force avoid the point chosen in elastic curve on bending section, to reduce the value of elastic for even avoiding obtaining by product surface dust, burr, the elastic material of product surface cladding, and the factors such as shell elastic force of product ontology influence, the accuracy for ensuring value of elastic is advantageous in the qualification of accurate judgement product.The invention also discloses a kind of elasticity testing devices, apply the acquisition methods of above-mentioned elastic slice elastic force, it can be ensured that the elastic force test result of elastic slice is accurate.
Description
Technical field
The present invention relates to Mechanical Industry Technology fields also to relate to more specifically to a kind of acquisition methods of elastic slice elastic force
And a kind of elasticity testing device.
Background technique
It is set up on industrial product and sets elastic slice, for being connect with other devices.
Currently, the elastic force of elastic slice on product need to be measured in order to ensure product qualification, bullet specifically is tested using elasticity tester
Piece elastic force simultaneously obtains elastic curve as shown in Figure 1, wherein is displaced as the displacement of elasticity tester seaming chuck, pressure head is used for will
Elastic slice presses to product ontology；Elastic force is the value of elastic of elastic slice, the measured value which passes through the gravity sensor of support product
It is obtained after being calculated.Elastic curve include pressure head contact flat spring but elastic slice not in contact with product ontology when first straight line section 11,
Elastic slice is depressed into bending section 12 during contact product ontology (or the surface coated material of product ontology) by pressure head and pressure head will
Elastic slice is pressed in the second straight line section 13 after product ontology, wherein turns arc starting point on bending section 12, turns arc midpoint, turns arc end
End, last inflection point.Elastic force of the value of elastic as elastic slice corresponding to any one point in aforementioned four point is chosen in the prior art
Value, still, the shell of elastic material and product ontology that bending section 12 is coated by product surface dust, burr, product surface
The factors such as elastic force influence, and cause in the test curve of different product 12 numerical value difference of bending section big or even identical product is through multiple
All there are greatest differences in the bending section 12 in test curve obtained, cause test result inaccurate, be unable to judge accurately product
Qualification.
In conclusion how to obtain accurate elastic slice value of elastic to the elastic curve that elastic slice measures according to elasticity tester is
Those skilled in the art's technical problem urgently to be resolved.
Summary of the invention
In view of this, the present invention provides a kind of acquisition methods of elastic slice elastic force, can be obtained according to the elastic curve of elastic slice
Accurate elastic slice value of elastic is obtained, conducive to the qualification of accurate judgement product.The present invention also provides a kind of elasticity testing devices, answer
With the acquisition methods of above-mentioned elastic slice elastic force, it is ensured that the elastic force test result of elastic slice is accurate.
To achieve the above object, the invention provides the following technical scheme:
A kind of acquisition methods of elastic slice elastic force, comprising:
1) fixed value of elastic is preset；
2) it looks for point corresponding with the fixed value of elastic on the elastic curve of elastic slice and obtains the corresponding shift value of point, with
The shift value is as basis displacement；
3) by the first straight line elongated segment of the elastic curve, and look on the extended line of the first straight line section with the base
Level moves corresponding point, using the corresponding value of elastic of point as the value of elastic of elastic slice.
Preferably, in the acquisition methods of above-mentioned elastic slice elastic force, the step 1) includes:
11) elastic force for carrying out elastic slice to multiple products is tested and obtains the elastic curve of elastic slice on each product；
12) value of elastic corresponding to the last inflection point of bending section in more each elastic curve, and maximum value of elastic is pre-
It is set as fixed value of elastic.
Preferably, in the acquisition methods of above-mentioned elastic slice elastic force, multiple products described in step 11) are 10 or more products.
Preferably, in the acquisition methods of above-mentioned elastic slice elastic force, the step 1) are as follows:
That looks for bending section in the elastic curve of elastic slice turns arc starting point, which is denoted as N, using as follows
Formula calculates fixed value of elastic N0:
N0=k*N
Wherein, k is coefficient, and the value range of k is 1.1-1.3.
Preferably, in the acquisition methods of above-mentioned elastic slice elastic force, k 1.2.
A kind of elasticity testing device applies the acquisition side of the elastic slice elastic force as described in any one of above-mentioned technical proposal
Method, comprising:
Controller；
The stepper motor controlled by the controller, the stepper motor are used for drive ram, and pressure head is for pressing product
Elastic slice；
Weighing sensor, the weighing sensor are used for product described in frame torr, and the weighing sensor and the control
Device processed is connected.
It preferably, further include rack in above-mentioned elasticity testing device, the rack includes board and is fixed on the board
On bracket；The weighing sensor is set to the board, and the stepper motor is fixed on the bracket, and the controller is set
It is placed in the board or the bracket.
Preferably, in above-mentioned elasticity testing device, the bracket is equipped with the sliding block that can be slided up and down, and the pressure head is solid
Determine on the slide block；The stepper motor drives the sliding block to slide up and down by lead screw.
It preferably, further include data collector, display screen in above-mentioned elasticity testing device, the display screen and the number
It is connected respectively with the controller according to collector.
It preferably, further include communication serial port in above-mentioned elasticity testing device, the communication serial port and the controller phase
Even.
The present invention provides a kind of acquisition methods of elastic slice elastic force comprising: 1) preset fixed value of elastic；2) bullet of elastic slice is looked for
Point corresponding with above-mentioned fixed value of elastic and the corresponding shift value of point is obtained on linearity curve, using the shift value as benchmark position
It moves；3) it by the first straight line elongated segment of elastic curve, and looks for corresponding with said reference displacement on the extended line of first straight line section
Point, using the corresponding value of elastic of point as the value of elastic of elastic slice.
The acquisition methods of elastic slice elastic force provided by the invention avoid the point chosen in elastic curve on bending section, to subtract
Elastic material and product ontology small or even that avoid the value of elastic obtained from being coated by product surface dust, burr, product surface
The factors such as shell elastic force influence, it is ensured that the accuracy of value of elastic, it is advantageous in the qualification of accurate judgement product.
The present invention also provides a kind of elasticity testing devices, apply the acquisition methods of above-mentioned elastic slice elastic force, it can be ensured that
The elastic force test result of elastic slice is accurate.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
It obtains other drawings based on these drawings.
Fig. 1 is that elasticity tester carries out the elastic curve obtained after elastic force test to elastic slice in the prior art；
Fig. 2 is the flow chart of the acquisition methods of elastic slice elastic force provided in an embodiment of the present invention；
Fig. 3 is to pass by journey using the acquisition methods of elastic slice elastic force provided in an embodiment of the present invention on existing exploration curve
Figure；
Fig. 4 is the composition figure of elasticity testing device provided in an embodiment of the present invention；
Fig. 5 is the structural schematic diagram of elasticity testing device provided in an embodiment of the present invention；
Wherein, in Fig. 1-Fig. 5:
First straight line section 11；Bending section 12；Second straight line section 13；Stepper motor 101；Display screen 102；Data collector
103；Communication serial port 104；Controller 105；Weighing sensor 106；Lead screw 107；Sliding block 108；Pressure head 109；Slide unit 110；Bracket
111；Board 112；Objective table 113.
Specific embodiment
The embodiment of the invention discloses a kind of acquisition methods of elastic slice elastic force, can be obtained according to the elastic curve of elastic slice
Accurate elastic slice value of elastic, conducive to the qualification of accurate judgement product.The embodiment of the invention also discloses a kind of tests of elastic force to fill
It sets, applies the acquisition methods of above-mentioned elastic slice elastic force, it is ensured that the elastic force test result of elastic slice is accurate.
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Fig. 1-Fig. 5 is please referred to, the embodiment of the present invention provides a kind of acquisition methods of elastic slice elastic force comprising: 1) it presets solid
Determine value of elastic；2) it looks for point corresponding with above-mentioned fixed value of elastic on the elastic curve of elastic slice and obtains the corresponding shift value of point,
Using the shift value as basis displacement；3) it by the first straight line elongated segment of elastic curve, and looks on the extended line of first straight line section
Point corresponding with said reference displacement, using the corresponding value of elastic of point as the value of elastic of elastic slice.
Existing elasticity tester can only obtain elasticity song as shown in Figure 1 after carrying out elastic force test to the elastic slice on product
Line, elastic curve include 109 contact flat spring of pressure head but elastic slice not in contact with product ontology when first straight line section 11, pressure head 109 will
Elastic slice is depressed into bending section 12 during contact product ontology (or the surface coated material of product ontology) and pressure head 109 for elastic slice
Second straight line section 13 after being pressed in product ontology, wherein turn arc starting point on bending section 12, turn arc midpoint, turn arc end, most
Inflection point afterwards.Wherein, turn arc starting point be elastic slice start contact product ontology outer surface when corresponding point, by the ash of product surface
Perhaps the foam elastomeric material of burr etc. or product surface cladding influences dirt, and turning the corresponding practical elastic force in arc end is
The elastic force of the elastic material of the elastic force and product ontology surface of elastic slice, corresponding practical elastic force is outside product ontology at last inflection point
The sum of the elastic force of shell, the elastic force of the elastic material on product ontology surface and elastic slice elastic force, and turn arc midpoint be turn arc starting point and
Turn the midpoint of arc end between the two, it is clear that above-mentioned to turn arc starting point, turn arc midpoint, turn four arc end, last inflection point point difference
By the said goods surface dirt, burr, the factors such as the elastic material of product surface cladding, the elastic force for producing this ontology itself influence,
The consistency of bending section 12 is poor in the elastic curve for causing test of many times to obtain, and elastic slice elastic force provided in an embodiment of the present invention
Acquisition methods completely avoid choosing the point in elastic curve on bending section 12, thus reduce the value of elastic that even avoids obtaining by
Product surface dust, burr, the factors such as shell elastic force of elastic material and product ontology that product surface coats influence, really
The accuracy of value of elastic is protected, it is advantageous in the qualification of accurate judgement product.
Meanwhile if in elastic curve second straight line section 13 carry out simulation exist get the risk put on bending section 12, and mould
More point is needed during quasi-, the difficulty for simulating second straight line section 13 is big, and model accuracy is poor, but second straight line section 13
Gradient is big, and close to vertical, acquisition methods provided by the invention choose first straight line section 11 by presetting elastic force fixed value
Point corresponding with the elastic force fixed value on extended line, using the value of elastic of the point as elastic slice elastic force, compared to two straight lines of selection
The intersection point of section is simultaneously used as the method for elastic slice elastic force using the corresponding value of elastic of point, both ensures the point of selection close to first straight line section
11 and second straight line section 13 intersection point, and avoid simulation second straight line section 13, step is simpler, user is facilitated to apply.
Specifically, step 1) includes: in the acquisition methods of above-mentioned elastic slice elastic force
11) elastic force for carrying out elastic slice to multiple products is tested and obtains the elastic curve of elastic slice on each product；
12) value of elastic corresponding to the last inflection point of bending section 12 in more each elastic curve, and by maximum value of elastic
It is preset as fixed value of elastic.
It, can with the corresponding maximum value of elastic of inflection point last in multiple elastic curves to fix value of elastic in the acquisition methods
Ensure that the fixation value of elastic had not only been located in second straight line section 13 but also close to bending section 12, it is ensured that the elastic slice value of elastic of acquisition is accurate.
Above-mentioned steps 11) in " multiple products " refer to 10 or more products.
Certainly, above-mentioned steps 1) it may also be configured to:
That looks for bending section 12 in the elastic curve of elastic slice turns arc starting point, which is denoted as N, using such as
Lower formula calculates fixed value of elastic N0:
N0=k*N
Wherein, k is coefficient, and the value range of k is 1.1-1.3.
Preferably, above-mentioned k is set as 1.2.
The embodiment of the present invention also provides a kind of elasticity testing device, applies the acquisition methods of above-mentioned elastic slice elastic force, packet
It includes: controller 105, stepper motor 101 and weighing sensor 106；Motor is controlled by controller 105, and the use of stepper motor 101
In drive ram 109, pressure head 109 is used to press the elastic slice of product；Weighing sensor 106 is used for frame torr product, and biography of weighing
Sensor 106 is connected with controller 105.During the elastic force for carrying out elastic slice tests the elastic curve to obtain elastic slice, control
Device 105 calculates elastic slice elastic force according to the testing result of weighing sensor 106, and is walked according to its rotation for controlling stepper motor 101
Number calculates the displacement of pressure head 109, to obtain the elastic curve of elastic slice；As shown in figure 3, controller 105 is with above-mentioned elastic curve
For foundation, accurate elastic slice value of elastic is obtained using the acquisition methods that embodiment as above provides.
It further include rack in above-mentioned elasticity testing device, rack includes board 112 and the bracket that is fixed on board 112
111；Weighing sensor 106 is set to above-mentioned board 112, and stepper motor 101 is fixed on bracket 111, and the setting of controller 105 exists
On above-mentioned board 112 or above-mentioned bracket 111.Rack is increased in the program, is existed convenient for each component set of elasticity testing device
In rack, and test site is provided for product.
In order to ensure pressure head 109 can be accurately pressed on elastic slice in folding process, bracket in above-mentioned elasticity testing device
111 are equipped with the sliding block 108 that can be slided up and down, and pressure head 109 is fixed on sliding block 108；Above-mentioned stepper motor 101 passes through lead screw
107 driving sliding blocks 108 slide up and down.Specifically, lead screw 107 may be configured as being fixedly connected with the axis of stepper motor 101, and silk
Thick stick 107 around own axis can be connected with sliding block 108；Certainly, lead screw 107 may also be configured to through stepper motor 101,
And stepper motor driving lead screw 107 moves up and down, meanwhile, lead screw 107 is fixedly connected with sliding block 108, as shown in Figure 5；This reality
Example is applied to the connection type of the connection type and lead screw 107 of lead screw 107 and stepper motor 101 and sliding block 108 without limitation, only
It needs lead screw 107 to meet the band movable slider 108 under the driving effect of stepper motor 101 to move up and down.
Slide unit 110 is fixed on above-mentioned bracket 111, sliding block 108, which can slide up and down to, to be arranged on slide unit 110.In addition,
Objective table 113 is fixed on weighing sensor, which is used for frame torr product.
It further, further include the data collector 103 being connected respectively with controller 105 in above-mentioned elasticity testing device
With display screen 102, data collector 103 inputs information for acquiring user, which includes for controlling starting test, stopping
The information such as test and setting motor operation speed；Display screen 102 is used to show the information and survey that data collector 103 acquires
Test result.
It is further analyzed for the ease of test result of the user to the elasticity testing device, in above-mentioned elasticity testing device
It further include communication serial port 104, which is connected with controller 105, for connecting the electronic equipments such as computer.
Elasticity testing device provided in an embodiment of the present invention applies the acquisition side of elastic slice elastic force provided by the above embodiment
Method, it can be ensured that the elastic force test result of elastic slice is accurate.Certainly, elasticity testing device provided in an embodiment of the present invention also has upper
Other effects of the acquisition methods of the elastic slice elastic force of embodiment offer are stated, details are not described herein.
Each embodiment in this specification is described in a progressive manner, the highlights of each of the examples are with other
The difference of embodiment, the same or similar parts in each embodiment may refer to each other.For device disclosed in embodiment
For, since it is corresponded to the methods disclosed in the examples, so being described relatively simple, related place is said referring to method part
It is bright.
The foregoing description of the disclosed embodiments enables those skilled in the art to implement or use the present invention.
Various modifications to these embodiments will be readily apparent to those skilled in the art, as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, of the invention
It is not intended to be limited to the embodiments shown herein, and is to fit to and the principles and novel features disclosed herein phase one
The widest scope of cause.
Claims (10)
1. a kind of acquisition methods of elastic slice elastic force characterized by comprising
1) fixed value of elastic is preset, the fixed value of elastic had not only been located in the second straight line section of the elastic curve of elastic slice but also close to curved
Tune；
2) it looks for point corresponding with the fixed value of elastic on the elastic curve of elastic slice and obtains the corresponding shift value of point, with the position
Shifting value is as basis displacement；
3) by the first straight line elongated segment of the elastic curve, and look on the extended line of the first straight line section with the benchmark position
Corresponding point is moved, using the corresponding value of elastic of point as the value of elastic of elastic slice.
2. the acquisition methods of elastic slice elastic force according to claim 1, which is characterized in that the step 1) includes:
11) elastic force for carrying out elastic slice to multiple products is tested and obtains the elastic curve of elastic slice on each product；
12) value of elastic corresponding to the last inflection point of bending section in more each elastic curve, and maximum value of elastic is preset as
Fixed value of elastic.
3. the acquisition methods of elastic slice elastic force according to claim 2, which is characterized in that multiple products described in step 11)
For 10 or more products.
4. the acquisition methods of elastic slice elastic force according to claim 1, which is characterized in that the step 1) are as follows:
That looks for bending section in the elastic curve of elastic slice turns arc starting point, which is denoted as N, utilizes following formula
Calculate fixed value of elastic N0:
N0=k*N
Wherein, k is coefficient, and the value range of k is 1.1-1.3.
5. the acquisition methods of elastic slice elastic force according to claim 4, which is characterized in that k 1.2.
6. a kind of elasticity testing device applies the acquisition methods of the elastic slice elastic force as described in claim 1-5 any one,
It is characterized in that, comprising:
Controller；
The stepper motor controlled by the controller, the stepper motor are used for drive ram, and pressure head is used to press the bullet of product
Piece；
Weighing sensor, the weighing sensor are used for product described in frame torr, and the weighing sensor and the controller
It is connected.
7. elasticity testing device according to claim 6, which is characterized in that further include rack, the rack includes board
With the bracket being fixed on the board；The weighing sensor is set to the board, and the stepper motor is fixed on described
Bracket, the controller are set to the board or the bracket.
8. elasticity testing device according to claim 7, which is characterized in that the bracket is equipped with and can slide up and down
Sliding block, the pressure head are fixed on the slide block；The stepper motor drives the sliding block to slide up and down by lead screw.
9. elasticity testing device according to claim 6, which is characterized in that it further include data collector, display screen, it is described
Display screen and the data collector are connected with the controller respectively.
10. elasticity testing device according to claim 6, which is characterized in that it further include communication serial port, the communication serial port
It is connected with the controller.
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| CN201611068231.1A CN106768544B (en) | 2016-11-25 | 2016-11-25 | The acquisition methods and elasticity testing device of elastic slice elastic force |
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| CN201611068231.1A CN106768544B (en) | 2016-11-25 | 2016-11-25 | The acquisition methods and elasticity testing device of elastic slice elastic force |
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| CN106768544B true CN106768544B (en) | 2019-03-15 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| IT1305804B1 (en) * | 1998-09-15 | 2001-05-16 | Marposs Spa | FORCE CONTROL APPARATUS AND METHOD. |
| CN101261913B (en) * | 2007-03-05 | 2011-09-28 | 游聪谋 | Miniature breaker |
| FR2916041B1 (en) * | 2007-05-11 | 2009-06-26 | Airbus France Sas | METHOD AND DEVICE FOR MONITORING THE DEFORMATION OF A METALLIC PART, IN PARTICULAR FOR THE REDRESSING OF A METAL PIECE |
| CN201666831U (en) * | 2009-01-13 | 2010-12-08 | 苏州三德精密机械有限公司 | Elasticity tester |
| CN105300788B (en) * | 2014-07-16 | 2017-09-26 | 鞍钢股份有限公司 | A kind of establishing method of drawing by high temperature speed |
| CN104677542B (en) * | 2015-03-16 | 2017-03-01 | 山东大学 | A kind of measuring system of spark discharge impulsive force and method |
| CN105928650B (en) * | 2016-04-22 | 2018-09-18 | 华北水利水电大学 | The method of the indoor test expansion sleeve bolt anchor head bulbs of pressure |
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