CN107727280A - The preparation method of single driving two-way tensile test apparatus and flexibility stress sensor - Google Patents
The preparation method of single driving two-way tensile test apparatus and flexibility stress sensor Download PDFInfo
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- CN107727280A CN107727280A CN201710749169.0A CN201710749169A CN107727280A CN 107727280 A CN107727280 A CN 107727280A CN 201710749169 A CN201710749169 A CN 201710749169A CN 107727280 A CN107727280 A CN 107727280A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L1/00—Measuring force or stress, in general
- G01L1/20—Measuring force or stress, in general by measuring variations in ohmic resistance of solid materials or of electrically-conductive fluids; by making use of electrokinetic cells, i.e. liquid-containing cells wherein an electrical potential is produced or varied upon the application of stress
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L1/00—Measuring force or stress, in general
- G01L1/14—Measuring force or stress, in general by measuring variations in capacitance or inductance of electrical elements, e.g. by measuring variations of frequency of electrical oscillators
Abstract
The invention belongs to sensor production technical field, and in particular to a kind of preparation method of single driving two-way tensile test apparatus and flexibility stress sensor.The experimental rig includes：First leading screw, the second leading screw, moving member, connector, limits device and drive device, first leading screw and the second leading screw are arranged in limits device, wherein a leading screw rotates under the driving of drive device, and another leading screw rotary motion is driven by gear drive, and then drive is screwed onto each moving member on two leading screws and moves towards or conversely move, the connector grab tensile sample being fixed on moving member carries out pulling action, and provides the preparation method that flexibility stress sensor is carried out using the experimental rig.The beneficial effects of the invention are as follows：The experimental rig is simple in construction, and installation tensile sample space is big, easy to operate, another drive device is saved, so advantage of lower cost, versatile；It is easy to implement automated system control.
Description
Technical field
The invention belongs to sensor production technical field, and in particular to a kind of single driving two-way tensile test apparatus and flexibility
The preparation method of strain gauge.
Background technology
At present, flexibility stress sensor can be attached at human body skin, in machine because it has flexible and elastic characteristic concurrently
There is potential application in the fields such as device people, medical treatment ＆ health monitoring device.At present, the making of flexibility stress sensor, is based on more
Flexible matrix material, such as hydrogenated styrene-butadiene block copolymer (SEBS) or dimethyl silicone polymer (PDMS)
For the flexible base material of flexibility, the then electrically conductive material such as carbon nano-tube coating or graphene on matrix material again, in order to
It can obtain the flexibility stress sensor for measuring bigger elongation strain, need during making to combine flexible substrates with material and be pre-stretched,
Then conductive material is coated in surface, the stretching that the flexibility stress sensor so made can measure more than 10 times should
Become.
The existing flexibility stress sensor for making this big elongation strain, the method being unidirectionally pre-stretched usually is used,
Occur the phenomenon of " constriction " during matrix material is stretched, so stretch uneven, cause the flexible sensing made
The problem of detection performance of device is undesirable.The experimental rig for needing two-way simultaneous to stretch for this.
At present, the experimental rig of biaxial tension has two kinds of implementations：Single type of drive and dual drive or more type of drive.
Using the biaxial tensile test platform of single driving input usually using gear, rope as the kind of drive, e.g., Chinese invention patent
" a kind of bidirectional tensile tester for testing sheet metal performance ", application number：201210194623.8 the experimental rig be by
Upper attachment structure, lower attachment structure, ratio regulation mechanism, fixture slide block mechanism and connecting rod are formed, and complex operation, installation examination be present
The problem of sample narrow space.Realized, i.e., installed respectively in horizontal and vertical both direction using dual drive or more type of drive
Independent drive device, e.g., Chinese invention patent " two-direction pull press mechanics machine and two-direction pull press mechanical test method ", Shen
Please number：201611006988.8, the main cross using 4 groups of leading screw modules is arranged, and has a servo on every group of leading screw module
Motor, which is driven, to be stretched, and causes whole cupping machine complicated, and cost is higher.
The content of the invention
The purpose of the present invention is experimental rig complex operation, the installation for overcoming single driving two-way existing for prior art to stretch
The problem of the problem of sample space is narrow and the experimental rig of more driving biaxial tensiones are complicated, cost is high, there is provided a kind of
Single driving two-way tensile test apparatus simple in construction, that installation sample space is big, easy to operate and advantage of lower cost,
And provide the preparation method that flexibility stress sensor is carried out using the experimental rig.
The technical solution adopted for the present invention to solve the technical problems is：A kind of single driving two-way tensile test apparatus, bag
Include：First leading screw, first leading screw include the first screw thread, the second screw thread and between the first screw thread and the second screw threads
First helical gear, the first screw thread are oppositely oriented with the second screw thread；Second leading screw, second leading screw include the 3rd screw thread, the
Four screw threads and between the 3rd screw thread and the 4th screw thread and the second helical gear for being connected with the first Helical gear Transmission, the 3rd spiral shell
Line and the 4th screw thread it is oppositely oriented, first leading screw and second leading screw are orthogonal；Moving member, the moving member bag
Include and be threaded through the first moving member of threaded connection with described first, the second movement of threaded connection is threaded through with described second
Part and the described 3rd is threaded through the 3rd moving member of threaded connection and is threaded through the 4th of threaded connection with the described 4th
Moving member；Connector, the connector include tensile sample being connected to the first connector of first moving member, will stretched
Sample is connected to the second connector of second moving member, tensile sample is connected to the 3rd connection of the 3rd moving member
Part and the 4th connector that tensile sample is connected to the 4th moving member；Limits device, first leading screw and described
Two leading screws are arranged in the limits device, and are rotated；Drive device, the drive device are used to drive described first
Leading screw or second leading screw, and another leading screw rotary motion is driven by gear drive, and then drive first moving member
Move towards with second moving member, the 3rd moving member and the 4th moving member or conversely move.
Further, the limits device includes pedestal and four pieces of fixed plates being fixed on pedestal, each fixation
Bearing is housed, the both ends of first leading screw and second leading screw are separately fixed on the bearing on plate.By described first
The both ends of leading screw are separately fixed on two bearings, so limit first leading screw and rotation fortune is done on the bearing
It is dynamic, equally the both ends of second leading screw are separately fixed on two bearings, limit second leading screw in the axle
Hold and rotate, four bearings are separately fixed in four pieces of fixed plates, this design, the side of installing and using
Just, it is simple in construction.
Further, the experimental rig also includes：It is slidably connected with first moving member and second moving member
First guide rod, and the second guide rod being slidably connected with the 3rd moving member and the 4th moving member.Preferably, institute
The first guide rod is stated parallel to first leading screw, second guide rod is parallel to second leading screw.First movement
Part and second moving member are slidably connected on first guide rod, and first guide rod plays the work for being oriented to and supporting
With so that first moving member and second moving member more smoothly move with the rotary motion of first leading screw
Dynamic, equally, the 3rd moving member and the 4th moving member are slidably connected on second guide rod, and described second is oriented to
Bar plays a part of being oriented to and supported so that the 3rd moving member and the 4th moving member are with the rotation of second leading screw
Transhipment is dynamic and more smoothly moves, it is preferred that first guide rod and second guide rod are respectively parallel to described the
One leading screw and second leading screw, such symmetrical configuration is simple, and first guide rod and second guide rod enter one
Step serves preferably guiding and supporting role.
Further, between first moving member and second moving member, and the 3rd moving member and described
Force snesor or/and displacement transducer are respectively provided between 4th moving member.First moving member and second moving member
Between the force snesor and institute's displacement sensors, and the 3rd moving member and the 4th moving member between it is described
Force snesor and institute's displacement sensors, can detect respectively between first moving member and second moving member and
The numerical value of power and displacement between 3rd moving member and the 4th moving member, detect that tensile sample institute stress is big in real time
Misalignment that is small and being stretched.
Further, the rotation for detecting the lead screw shaft turnning circle is housed on first leading screw or second leading screw
Encoder.The encoder is capable of detecting when first leading screw or the second lead screw shaft turnning circle, and being easy to being capable of root
Turnning circle is intuitively learnt according to the tensile elongation required by tensile sample, improves the precision of stretching control.
Preferably, the drive device is servomotor.Servomotor rotating speed is controlled by input signal, and can be quickly anti-
Should, and positional precision is very accurate, in automatic control system, has the characteristics such as electromechanical time constant is small, the linearity is high, and can
So that voltage signal is converted into torque and rotating speed with drive control object, automation control system is easy to implement.
Further, the experimental rig also includes：Control module, analysis module and display module, the control module with
The force snesor, institute's displacement sensors, the encoder connect with the drive device signal, the analysis module and institute
Control module, the force snesor, institute's displacement sensors are stated to connect with the code device signal.The control module is according to institute
The numerical information that force snesor, institute's displacement sensors and the encoder provide is stated, controls the drive device to rotate, enters one
Step controls the drive device to rotate forward or reversely rotate, and rotating forward or reversely rotating for the drive device drives institute
State the first moving member and second moving member is moved towards or conversely moved, and drive the 3rd moving member and described
4th moving member is moved towards or conversely moved, the analysis module analyze the force snesor, institute's displacement sensors and
The numerical information of the encoder, and the control information of the control module is analyzed, draw and contribute and displacement, power and deformation, power
With the related experiment curve such as time, shown when the display module is by institute's test result and the fructufy of analysis.
Further, experimental rig periphery is provided with a protective cover.Protective cover purpose is to prevent from stretching during experiment
Ejection of sample etc., to play the protective effect to operator around.
Further, the preparation method that flexibility stress sensor is carried out using experimental rig described above, including it is as follows
Step：
Step 1, first start the drive device, drive first leading screw or second leading screw, and pass through helical teeth
Wheel transmission drives another leading screw rotary motion, and then drives first moving member and second moving member, the 3rd shifting
Moving part and the 4th moving member move towards, be moved between first moving member and second moving member away from
From and the distance between the 3rd moving member and described 4th moving member, the bullet of flexibility being accommodated between two distances
Property matrix material, you can stop the operation of the drive device；
Step 2, the flexible base material of flexibility is respectively fixed to first connector, second connector, institute
State on the 3rd connector and the 4th connector；
Step 3, restart the drive device, make first moving member and second moving member, the 3rd shifting
Moving part and the 4th moving member do opposite movement, be moved to it is set in advance apart from when stop the operation of the drive device；
Step 4, conductive material is coated in the centre of the flexible base material, and treats its solidification；
Step 5, repeat step one, the flexible base material is removed, complete the making of flexibility stress sensor.
In summary, the preparation method of a kind of single driving two-way tensile test apparatus and flexibility stress sensor of the invention
Beneficial effect be：
1. two leading screws with different rotation direction screw threads are vertically arranged, and are connected by one group of Helical gear Transmission, it is only necessary to
One drive device can is realized moving towards while both direction or conversely moved, this simple in construction, connector
The top of two leading screws is arranged on, installation tensile sample space is big, easy to operate, saves another drive device, so
Advantage of lower cost, it is versatile；
2. setting force snesor, displacement transducer, encoder and servomotor etc., automated system control is easy to implement,
So it is more convenient for subsequent operation；
3. flexible base material is stretched into a certain distance using the experimental rig, then applied on flexible base material
Cover conductive material, you can complete the making of flexibility stress sensor, the experimental rig makes biaxial tension flexibility stress sensor
Very convenient, biaxial tension easily causes plane uniform force, and the flexible resilient matrix material of stretching is flexible uniform, so makes
Flexibility stress sensor accuracy out is higher.
Brief description of the drawings
The present invention is further detailed explanation with reference to the accompanying drawings and detailed description.
Fig. 1 is the stereogram of the single driving two-way tensile test apparatus of the present invention；
Fig. 2 is the expanded view of the single driving two-way tensile test apparatus of the present invention；
Fig. 3 is the making schematic diagram of the flexibility stress sensor of the present invention.
Wherein：1. the first leading screw；11. the first screw thread；12. the second screw thread；13. the first helical gear；2. the second leading screw；21.
3rd screw thread；22. the 4th screw thread；23. the second helical gear；3. moving member；31 first moving members；32. the second moving member；33. the
Three moving members；34. the 4th moving member；4. connector；41. the first connector；42. the second connector；43. the 3rd connector；44.
4th connector；5. limits device；51. pedestal；52. fixed plate；53. bearing；6. drive device；7. the first guide rod；8. the
Two guide rods；91. force snesor；92. displacement transducer；93. encoder；100. flexibility stress sensor；101. elastic matrix
Material；102. conductive material.
Embodiment
In conjunction with the accompanying drawings, the present invention is further explained in detail.These accompanying drawings are simplified schematic diagram, only with
Illustration illustrates the basic structure of the present invention, therefore it only shows the composition relevant with the present invention.
As shown in Fig. 1~2, a kind of single driving two-way tensile test apparatus of the present embodiment, including：First leading screw 1, second
Leading screw 2, moving member 3, connector 4, limits device 5 and drive device 6, it is specific as follows：
First leading screw 1 includes the first screw thread 11, the second screw thread 12 and between the first screw thread 11 and the second screw thread 12
The first helical gear 13, the first screw thread 11 and the second screw thread 12 it is oppositely oriented.
Second leading screw 2 includes the 3rd screw thread 21, the 4th screw thread 22 and between the 3rd screw thread 21 and the 4th screw thread 22
And with the second helical gear 23 of the first helical gear 13 drive connection, the 3rd screw thread 21 and the 4th screw thread 22 it is oppositely oriented, first
The leading screw 2 of leading screw 1 and second is orthogonal.The helical gear NEGTS series of meter Si meter companies can be selected in helical gear.
The first moving member 31 and the second screw thread 12 that moving member 3 includes being connected through a screw thread with the first screw thread 11 pass through spiral shell
The 3rd moving member 33 and lead to the 4th screw thread 22 that the second moving member 32 and the 3rd screw thread 21 of line connection are connected through a screw thread
Cross the 4th moving member 34 of threaded connection.
Connector 4 includes tensile sample (tensile sample of the present embodiment is flexibility stress sensor 100) being connected to
First connector 41 of the first moving member 31, the second connector 42 that tensile sample is connected to the second moving member 32, will stretching
Sample is connected to the 3rd connector 43 of the 3rd moving member 33 and tensile sample is connected to the 4th connection of the 4th moving member 34
Part 44.
Limits device 5, the first leading screw 1 and the second leading screw 2 are arranged in limits device 5, and are rotated；Preferably,
Limits device 5 includes pedestal 51 and four pieces of fixed plates 52 being fixed on pedestal 51, and (that is, whole experimental rig is all located at pedestal 51
On), bearing 53 is housed, the both ends of the first leading screw 1 and the second leading screw 2 are separately fixed on bearing 53 in each fixed plate 52.Will
The both ends of first leading screw 1 are separately fixed on two bearings 53, and such first leading screw 1 rotates on bearing 53, equally
The both ends of second leading screw 2 are separately fixed on bearing 53, the second leading screw 2 of limitation rotates on bearing 53, four axles
Hold 53 and be separately fixed in four pieces of fixed plates 52 and limit the first leading screw 1 and the second leading screw 2 only rotates, this design side
Case, it is easy to install and simple in construction.
Drive device 6 is used to drive the first leading screw 1 or the second leading screw 2, and drives another leading screw to rotate by gear drive
Motion, and then drive the first moving member 31 and the second moving member 32, the 3rd moving member 33 and the 4th moving member 34 to move towards
It is or opposite mobile.Drive device 6 can by the way of it can be manually rotated, the mode of motor driven is driven.
Further, the experimental rig also includes：First to be slidably connected with the first moving member 31 and the second moving member 32
Guide rod 7, and the second guide rod 8 being slidably connected with the 3rd moving member 33 and the 4th moving member 34.Preferably, first it is oriented to
Bar 7 parallel to the first leading screw 1, parallel to the second leading screw 2, and by the first guide rod 7 fix and the first leading screw 1 by the second guide rod 8
In connected two fixed plates 52, the second guide rod 8 is fixed in other two fixed plates 52 being connected with the second leading screw 2.First
The moving member 32 of moving member 31 and second is slidably connected on the first guide rod 7, and the first guide rod 7 plays the work for being oriented to and supporting
With so that the first moving member 31 and the second moving member 32 can be moved more smoothly with the rotary motion of the first leading screw 1,
Equally, the 3rd moving member 33 and the 4th moving member 34 are slidably connected on the second guide rod 8, the second guide rod 8 play guiding and
The effect of support so that the 3rd moving member 33 and the 4th moving member 34 are with the rotary motion of the second leading screw 2 and more smoothly
It is mobile, it is preferred that the first guide rod 7 and the second guide rod 8 are respectively parallel to the first leading screw 1 and the second leading screw 2, this spline structure pair
Claim simply, and the first guide rod 7 and the second guide rod 8 have further functioned as more preferable guiding and supporting role.
In order to realize the Automated condtrol of the experimental rig, using following measure：
Between first moving member 31 and the second moving member 32, and between the 3rd moving member 33 and the 4th moving member 34 respectively
Equipped with force snesor 91 or/and displacement transducer 92.The He of force snesor 91 between first moving member 31 and the second moving member 32
Force snesor 91 and displacement transducer 92 between displacement transducer 92, and the 3rd moving member 33 and the 4th moving member 34, can
Detect respectively between the first moving member 31 and the second moving member 32 and between the 3rd moving member 33 and the 4th moving member 34
Power and the numerical value of displacement, the tensile sample size of institute's stress and the misalignment being stretched in the two directions are detected in real time.
Further, it is connected with respectively in the first connector 41, the second connector 42, the 3rd connector 43 and the 4th connector 44
Force cell, it is capable of detecting when to be clamped in the size of power on tensile sample, knows that clamping force is sized to prevent excessively to clamp
Damage tensile sample.
Preferably, the rotary encoder for detecting the lead screw shaft turnning circle is housed on the first leading screw 1 or the second leading screw 2
93.Encoder 93 is capable of detecting when the first leading screw 1 or the axle turnning circle of the second leading screw 2, and being easy to can be according to tensile sample institute
It is required that tensile elongation intuitively learnt turnning circle, improve stretching control precision.
Preferably, drive device 6 is servomotor.Servomotor rotating speed is controlled by input signal, and energy fast reaction, and
And positional precision is very accurate, can have the advantages that electromechanical time constant is small, the linearity is high in automation control system,
Voltage signal can be converted into torque and rotating speed with drive control object, be easy to implement automation control system.
Further, the experimental rig also includes：Control module, analysis module and display module, control module respectively with
Force snesor 91, displacement transducer 92, encoder 93 connect with the signal of drive device 6, analysis module respectively with control module, power
Sensor 91, displacement transducer 92 connect with the signal of encoder 93.Control module is according to force snesor 91, the and of displacement transducer 92
Encoder 93 provide numerical information, control drive device 6 rotate forward or reversely rotate, drive device 6 rotate forward or
Person reversely rotates rotating forward or reversely rotating for the first leading screw 1 of driving, and then drives the first moving member 31 and the second movement
Part 32 is moved towards or conversely moved, and rotating forward or reversely rotating for the first leading screw 1 is driven by the first helical gear 13
Second helical gear 23 rotates, and drives the second leading screw 2 to rotate, and then drives the 3rd moving member 33 and the 4th moving member 34 to do opposite shifting
It is dynamic or opposite mobile, the numerical information of analysis module analysis force snesor 91, displacement transducer 92 and encoder 93, and analyze control
The control information of molding block, draw and contribute and the related experiment curve such as displacement, power and deformation, power and time, display module is by institute
Shown when test result and the fructufy of analysis.
Finally, in order to prevent ejection of tensile sample etc. during testing, to play the protective effect to operator around,
Experimental rig periphery is provided with a protective cover (not marked in figure).
As shown in figure 3, the preparation method of flexibility stress sensor is carried out using above-mentioned experimental rig, including following step
Suddenly：
Step 1, first start drive device 6, drive the first leading screw 1 or the second leading screw 2, and pass through Helical gear Transmission band
Another leading screw rotary motion is moved, and then drives the first moving member 31 and the second moving member 32, the 3rd moving member 33 and the 4th movement
Part 34 moves towards, and is moved to the distance between the first moving member 31 and the second moving member 32, and the He of the 3rd moving member 33
The distance between 4th moving member 34, the flexible base material 101 of flexibility can be accommodated between two distances, you can stop driving
The operation of device 6；
Step 2, the flexible base material 101 of flexibility is respectively fixed to the first connector 41, the second connector 42, the
On three connectors 43 and the 4th connector 44；
Step 3, restart drive device 6, make the first moving member 31 and the second moving member 32, the 3rd moving member 33 and
Four moving members 34 do opposite movement, be moved to it is set in advance apart from when stop drive device 6 operation；
Step 4, conductive material 102 is coated in the centre of flexible base material 101, and treats its solidification；Conductive material
102 be preferably CNT, graphene and nano silver wire etc., and flexible base material is preferably SEBS, PDMS etc.；
Step 5, repeat step one, flexible base material 101 is removed, complete the making of flexibility stress sensor 100.
The flexibility stress sensor 100 so made by biaxial tension, due to making stretching in biaxial tension state
The uniform force of flexible resilient matrix material 101, and be readily obtained flexible even resilient matrix material 101, then by conductive material
102 are evenly coated with being fixed on the surface of flexible base material 101, and flexible base material 101 finally is returned into unstretched state
When, conductive material 102 is collected at the surface of flexible base material 101, when flexible base material 101 stretches, conductive material 102 with
Stretching, in this process the resistance of conductive material change therewith, (or the tow sides of elastomeric substrate materials 101 are made
Form all with conductive material 102, i.e. condenser type flexibility stress sensor 100, tested by the change of electric capacity in drawing process
The size of pulling force), the tensile property of flexibility stress sensor 100 so made is relatively good, and measurement accuracy is high.
It should be appreciated that specific embodiment described above is only used for explaining the present invention, it is not intended to limit the present invention.By
Among the obvious changes or variations that the spirit of the present invention is extended out is still in protection scope of the present invention.
Claims (10)
- A kind of 1. single driving two-way tensile test apparatus, it is characterised in that including：First leading screw (1), first leading screw (1) include the first screw thread (11), the second screw thread (12) and located at the first screw threads (11) the first helical gear (13) between the second screw thread (12), the first screw thread (11) are oppositely oriented with the second screw thread (12)；Second leading screw (2), second leading screw (2) include the 3rd screw thread (21), the 4th screw thread (22) and located at the 3rd screw threads (21) the second helical gear (23) being connected between the 4th screw thread (22) and with the first helical gear (13), the 3rd screw thread (21) Oppositely oriented with the 4th screw thread (22), first leading screw (1) and second leading screw (2) are orthogonal；Moving member (3), the moving member (3) include the first moving member being connected through a screw thread with first screw thread (11) (31) the second moving member (32), being connected through a screw thread with second screw thread (12) and the 3rd screw thread (21) pass through spiral shell 3rd moving member (33) of line connection and the 4th moving member (34) being connected through a screw thread with the 4th screw thread (22)；Connector (4), the connector (4) include for tensile sample being connected to the first connector of first moving member (31) (41) tensile sample, is connected to the second connector (42) of second moving member (32), tensile sample is connected to it is described 3rd connector (43) of the 3rd moving member (33) and the 4th connection that tensile sample is connected to the 4th moving member (34) Part (44)；Limits device (5), first leading screw (1) and second leading screw (2) are arranged in the limits device (5), and are done Rotary motion；Drive device (6), the drive device (6) is used to drive first leading screw (1) or second leading screw (2), and leads to Cross gear drive and drive another leading screw rotary motion, and then drive first moving member (31) and second moving member (32), the 3rd moving member (33) and the 4th moving member (34) move towards or conversely moved.
- 2. single driving two-way tensile test apparatus according to claim 1, it is characterised in that：Limits device (5) bag Four pieces of fixed plates (52) on pedestal (51) and the fixed pedestal (51) are included, bearing is housed on each fixed plate (52) (53), the both ends of first leading screw (1) and second leading screw (2) are separately fixed on the bearing (53).
- 3. single driving two-way tensile test apparatus according to claim 1, it is characterised in that the experimental rig also includes： The first guide rod (7) being slidably connected with first moving member (31) and second moving member (32), and with described The second guide rod (8) that three moving members (33) and the 4th moving member (34) are slidably connected.
- 4. single driving two-way tensile test apparatus according to claim 2, it is characterised in that：First guide rod (7) Parallel to first leading screw (1), second guide rod (8) is parallel to second leading screw (2).
- 5. single driving two-way tensile test apparatus according to claim 1, it is characterised in that：First moving member (31) Between second moving member (32), and filled respectively between the 3rd moving member (33) and the 4th moving member (34) Force sensor (91) or/and displacement transducer (92).
- 6. single driving two-way tensile test apparatus according to claim 5, it is characterised in that：First leading screw (1) or Equipped with the rotary encoder (93) for detecting the lead screw shaft turnning circle on the second leading screw (2) described in person.
- 7. single driving two-way tensile test apparatus according to claim 6, it is characterised in that：The drive device (6) is Servomotor.
- 8. single driving two-way tensile test apparatus according to claim 7, it is characterised in that the experimental rig also includes： Control module, analysis module and display module, the control module respectively with the force snesor (91), institute's displacement sensors (92), the encoder (93) connects with the drive device (6) signal, the analysis module respectively with the control module, The force snesor (91), institute's displacement sensors (92) connect with the encoder (93) signal.
- 9. according to the single driving two-way tensile test apparatus described in claim any one of 1-8, it is characterised in that：The experimental rig Periphery is provided with a protective cover.
- 10. the preparation method of flexibility stress sensor is carried out using the experimental rig described in claim 1, it is characterised in that bag Include following steps：Step 1, first start the drive device (6), drive first leading screw (1) or second leading screw (2), and lead to Cross Helical gear Transmission and drive another leading screw rotary motion, and then drive first moving member (31) and second moving member (32), the 3rd moving member (33) and the 4th moving member (34) move towards, and are moved to first moving member And the distance between second moving member (32), and the 3rd moving member (33) and the 4th moving member (34) (31) The distance between, flexible flexible base material (101) can be accommodated between two distances, you can stop the drive device (6) operation；Step 2, the flexible base material (101) of flexibility is respectively fixed to first connector (41), described second On connector (42), the 3rd connector (43) and the 4th connector (44)；Step 3, restart the drive device (6), make first moving member (31) and second moving member (32), institute State the 3rd moving member (33) and the 4th moving member (34) do opposite movement, be moved to it is set in advance apart from when stop described in The operation of drive device (6)；Step 4, conductive material (102) is coated in the centre of the flexible base material (101), and treats its solidification；Step 5, repeat step one, the flexible base material (101) is removed, complete the system of flexibility stress sensor (100) Make.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710749169.0A CN107727280B (en) | 2017-08-28 | 2017-08-28 | Single-drive biaxial tension test device and manufacturing method of flexible stress sensor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710749169.0A CN107727280B (en) | 2017-08-28 | 2017-08-28 | Single-drive biaxial tension test device and manufacturing method of flexible stress sensor |
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| CN107727280B CN107727280B (en) | 2020-01-21 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109551436A (en) * | 2018-12-29 | 2019-04-02 | 苏州爱美纤维科技有限公司 | Strip flexible material Automatic-drawing device |
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