CN109100218B - Correction clamp for fabric tensile test - Google Patents
Correction clamp for fabric tensile test Download PDFInfo
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- CN109100218B CN109100218B CN201811139707.5A CN201811139707A CN109100218B CN 109100218 B CN109100218 B CN 109100218B CN 201811139707 A CN201811139707 A CN 201811139707A CN 109100218 B CN109100218 B CN 109100218B
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- 239000004744 fabric Substances 0.000 title claims abstract description 154
- 238000009864 tensile test Methods 0.000 title claims abstract description 72
- 230000007704 transition Effects 0.000 claims description 10
- 239000000463 material Substances 0.000 claims description 9
- 230000000149 penetrating effect Effects 0.000 claims 1
- 238000012360 testing method Methods 0.000 abstract description 14
- 230000009286 beneficial effect Effects 0.000 abstract description 3
- 238000001514 detection method Methods 0.000 description 8
- 238000000034 method Methods 0.000 description 7
- 230000002457 bidirectional effect Effects 0.000 description 5
- 238000010998 test method Methods 0.000 description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 230000003287 optical effect Effects 0.000 description 4
- 238000005267 amalgamation Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 239000004745 nonwoven fabric Substances 0.000 description 2
- 239000012780 transparent material Substances 0.000 description 2
- 230000001960 triggered effect Effects 0.000 description 2
- 230000037303 wrinkles Effects 0.000 description 2
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000000452 restraining effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
- 238000011179 visual inspection Methods 0.000 description 1
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- 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
- G01N3/04—Chucks
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- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
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- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The application relates to the field of fabric test equipment, in particular to a correction clamp for fabric tensile test, which comprises a first clamping plate assembly, a second clamping plate and a second clamping plate, wherein the first clamping plate assembly comprises a first upper clamping plate, a first middle clamping plate and a first lower clamping plate, and the first middle clamping plate is detachably arranged between the first upper clamping plate and the first lower clamping plate; a second cleat assembly comprising a second upper cleat, a second middle cleat, and a second lower cleat, the second middle cleat being removably mounted between the second upper cleat and the second lower cleat; the first clamping plate assembly and the second clamping plate assembly are clamped relatively through the clamping structure so as to clamp the fabric to be tested. The correction clamp provided by the application can easily restrict the tested fabric from a flexible state to a straight rigid state by arranging the tested fabric between the first clamping plate component and the second clamping plate component, is more beneficial to adjusting the position of the tested fabric on the tensile testing machine, enables the tested fabric to be in a better straight test state, and improves the precision and stability of the fabric tensile test.
Description
[ field of technology ]
The application relates to the field of fabric test equipment, in particular to a correction clamp for fabric tensile test.
[ background Art ]
The bar sample method is one of the test methods of fabric tensile breaking strength, and indicates that the indexes include breaking strength, breaking elongation and the like.
According to the test method, a fabric is required to be made into a rectangular sample with specified width and length during test, then the prepared sample is clamped by an upper clamp and a lower clamp of a tensile testing machine along the length direction, specified clamping distance and stretching speed are set, an instrument is started to stretch until the sample breaks and relevant data are recorded, and the specific test method can refer to national standards GB/T3923.1-2013 and GB/T24218.3-2010.
According to the requirements of the existing GB/T3923.1-2013, GB/T24218.3-2010 and other test methods, when a fabric tensile test is carried out by a strip sample method, the tested fabric needs to be fixed on an upper clamp and a lower clamp of a tensile testing machine as straight and as centered as possible, so that the vertical symmetry axis of a sample is overlapped with the tensile center line, and the optimal clamping state is achieved. However, on one hand, because the fabric is difficult to be in a straight state as a flexible material, and on the other hand, the individual fabric forms wrinkles due to the reasons of process, storage and the like, the clamping mode of the test method at present only depends on manual visual inspection to adjust the clamping position, and depends on operators to smooth the tested fabric to be in the straight state as much as possible, so that the accuracy and the stability of the test are obviously difficult to ensure.
[ invention ]
In order to solve the technical problem, an object of the present application is to provide a correction clamp for a fabric tensile test, which is capable of easily restraining a fabric to be tested from a flexible state to a straight rigid state by placing the fabric to be tested between the first clamping plate assembly and the second clamping plate assembly and clamping the fabric, and further facilitating the adjustment of the position of the fabric to be tested on a tensile testing machine, so that the fabric to be tested is in a better straight test state, and the accuracy and stability of the fabric tensile test are improved.
The application is realized by the following technical scheme:
a calibration fixture for fabric tensile testing, comprising:
a first cleat assembly comprising a first upper cleat, a first middle cleat, and a first lower cleat, the first middle cleat being removably mounted between the first upper cleat and the first lower cleat;
a second cleat assembly comprising a second upper cleat, a second middle cleat, and a second lower cleat, the second middle cleat being removably mounted between the second upper cleat and the second lower cleat;
the first clamping plate component and the second clamping plate component are clamped relatively through a clamping structure, so that the first upper clamping plate is opposite to the second upper clamping plate, the first middle clamping plate is opposite to the second middle clamping plate, and the first lower clamping plate is opposite to the second lower clamping plate, and further the tested fabric is clamped;
the length of the first middle clamping plate between the first upper clamping plate and the first lower clamping plate is equal to the clamping distance of the fabric to be tested, and the length of the second middle clamping plate between the second upper clamping plate and the second lower clamping plate is equal to the clamping distance of the fabric to be tested.
The correction clamp for the fabric tensile test is characterized in that the lower end of the first upper clamping plate is provided with the first upper sliding strip part, the upper end of the first lower clamping plate is provided with the first lower sliding strip part, the upper end of the first middle clamping plate is provided with the first sliding groove corresponding to the first upper sliding strip part, and the lower end of the first middle clamping plate is provided with the second sliding groove corresponding to the first lower sliding strip part;
the upper end of the second upper clamping plate is provided with a second upper sliding strip part, the upper end of the second lower clamping plate is provided with a second lower sliding strip part, the upper end of the second middle clamping plate is provided with a third sliding groove corresponding to the second upper sliding strip part, and the lower end of the second middle clamping plate is provided with a fourth sliding groove corresponding to the second lower sliding strip part.
The front surfaces of the first middle clamping plate, the first upper clamping plate and the first lower clamping plate are on the same plane, and the front surfaces of the second middle clamping plate, the second upper clamping plate and the second lower clamping plate are on the same plane.
The correcting clamp for the fabric tensile test is characterized in that the cross sections of the first upper slide bar part, the first lower slide bar part, the second upper slide bar part and the second lower slide bar part are T-shaped or dovetail-shaped, and the groove types of the first sliding groove, the second sliding groove, the third sliding groove and the fourth sliding groove are T-shaped grooves corresponding to the T-shaped cross sections or dovetail grooves corresponding to the dovetail-shaped cross sections.
The correction clamp for the fabric tensile test comprises a clamping structure, a clamping mechanism and a clamping mechanism, wherein the clamping structure comprises a plurality of clamping holes and a plurality of buckles;
the clamping holes are respectively formed in the front surfaces of the first upper clamping plate and the first lower clamping plate;
the buckles are respectively arranged on the front surfaces of the second upper clamping plate and the second lower clamping plate;
the clamping hole can be clamped in the clamping hole so that the first clamping plate assembly and the second clamping plate assembly are clamped relatively.
The correction clamp for the fabric tensile test comprises a large hole section, a transition section, a small Kong Duanyi and a containing cavity which penetrates through the large hole section, the transition section and the small hole section, wherein the large hole section, the transition section and the small Kong Duanyi are sequentially connected;
the buckle comprises a clamping part and a connecting part;
the clamping part passes through the big hole Duan Shen and enters the accommodating cavity, and then the connecting part passes through the transition section and reaches the small hole section, so that the clamping part is locked in the accommodating cavity at the small hole section.
The correcting clamp for fabric tensile test is characterized in that the clamping structure is a magnetic piece arranged in the first clamping plate assembly and the second clamping plate assembly so that the first clamping plate assembly and the second clamping plate assembly are clamped by magnetic attraction.
The correcting clamp for the fabric tensile test is characterized in that the front surfaces of the first upper clamping plate and the first lower clamping plate are respectively provided with a limiting protrusion used for limiting the clamping position of the tested fabric in the first clamping plate assembly and the second clamping plate assembly;
the front faces of the second upper clamping plate and the second lower clamping plate are respectively provided with an avoidance part corresponding to the limiting protrusion.
The correction jig for fabric tension test as described above, the first clamping plate assembly and the second clamping plate assembly are made of transparent hard materials.
The correcting clamp for fabric tensile test is characterized in that push-pull handles are respectively arranged on the side edges of the first middle clamping plate and the second middle clamping plate.
Compared with the prior art, the application has the following advantages:
1. the correction clamp is characterized in that the detected fabric is placed between the first clamping plate assembly and the second clamping plate assembly and clamped, the detected fabric can be easily restrained from a flexible state to a straight rigid state, the position of the detected fabric can be adjusted on the tensile testing machine, the detected fabric is in a better straight testing state, and the accuracy and stability of the fabric tensile test are improved.
2. The detected fabric can be positioned in advance on the correction clamp through the limiting protrusions, namely the edge position of the detected fabric is limited by the limiting protrusions, the position of the detected fabric can be corrected only by correcting the position of the correction clamp, and the position of the detected fabric is easy to adjust due to the fact that the clamp is made of hard materials, the position of the detected fabric is adjusted more accurately and conveniently, and the accuracy and the stability of the fabric tensile test are improved.
[ description of the drawings ]
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIGS. 1 and 2 are schematic perspective views of two different angles of a tensile tester for fabric tensile testing according to example 1 of the present application;
FIG. 3 is a schematic diagram showing the calibration state of the tested fabric in example 1 of the present application;
FIG. 4 is a schematic diagram showing the calibration status of the fabric under test in example 2 of the present application;
FIG. 5 is a perspective view of a calibration jig according to embodiment 3 of the present application;
FIG. 6 is an exploded view of the calibration jig according to embodiment 3 of the present application;
FIG. 7 is an exploded view of the first cleat assembly of embodiment 3 of the present application;
FIG. 8 is an exploded view of the second cleat assembly of embodiment 3 of the present application;
FIG. 9 is a schematic perspective view of a tensile testing machine for fabric tensile testing according to example 3 of the present application, equipped with the calibration jig;
FIG. 10 is a schematic illustration of the calibration of the tested fabric on the first cleat assembly of example 3 of the present application;
fig. 11 is a schematic structural view of a first upper clamping plate according to embodiment 3 of the present application;
fig. 12 is a schematic structural view of a first lower clamping plate according to embodiment 3 of the present application;
fig. 13 is a schematic structural view of a second upper clamping plate according to embodiment 3 of the present application;
fig. 14 is a schematic structural view of a second lower plate according to embodiment 3 of the present application;
FIG. 15 is an enlarged view of the J portion of FIG. 2 in accordance with an embodiment of the present application;
fig. 16 is an enlarged view of the K portion in fig. 8 according to the embodiment of the present application.
[ detailed description ] of the invention
In order to make the technical problems, technical schemes and beneficial effects solved by the application more clear, the application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the present application.
As shown in fig. 1 to 3, embodiment 1 of the present application proposes a tensile testing machine for fabric tensile testing, including a frame 1, a clamping device 3 for clamping a fabric 2 to be tested is provided on the frame 1, the clamping device 3 includes an upper clamp 31 and a lower clamp 32, and the tensile testing machine for fabric tensile testing further includes a light detection device 4 which is provided on one side of the clamping device 3 and can emit a light beam and can form a vertical reference light beam between the upper clamp 31 and the lower clamp 32. Specifically, the light detection device 4 includes a fixing base 40, and a light source capable of emitting a vertical reference beam and a mounting portion for connecting to one side of the tensile testing machine are disposed on the fixing base 40. The mounting part is a threaded hole for being in threaded connection with the tensile testing machine or a plane for being in welded connection with the tensile testing machine or a clamping jaw for being clamped on the tensile testing machine.
The optical detection device is arranged on the tensile testing machine, when the tested fabric is clamped, the position of the tested fabric is adjusted according to the vertical reference beam emitted by the optical detection device 4, so that the tested fabric is vertically clamped on the tensile testing machine, the adjustment operation is more accurate according to the adjustment of the reference beam, and the accuracy and the stability of the fabric tensile test are further improved.
As shown in fig. 15, the light detection device 4 further includes: the centering and distance adjusting unit 41 is arranged on the fixed seat 40, the centering and distance adjusting unit 41 comprises a left centering seat 411 and a right centering seat 412 which are symmetrically arranged, and the left centering seat 411 and the right centering seat 412 can move reversely at equal intervals relative to a vertical symmetrical central line; the lifting movement unit 42 comprises a left lifting unit arranged on the left centering seat 411 and a right lifting unit arranged on the right centering seat 412, the left lifting unit comprises a left lifting seat 421 capable of moving up and down and a left lifting driving mechanism 422 connected with the left lifting seat 421 to drive the left lifting seat 421 to move up and down, the right lifting unit comprises a right lifting seat 423 capable of moving up and down and a right lifting driving mechanism 424 connected with the right lifting seat 423 to drive the right lifting seat 423 to move up and down, the left lifting seat 421 is fixedly connected with a left photoelectric sensor 43 capable of emitting a punctiform light beam and generating a left shielding signal when the punctiform light beam is shielded, the right lifting seat 423 is fixedly connected with a right photoelectric sensor 44 capable of emitting a right shielding signal when the punctiform light beam is shielded, the left photoelectric sensor 43 moves up and down along with the left lifting seat 421 to form the vertical reference light beam, and the right photoelectric sensor 44 moves up and down along with the right lifting seat 423 to form the vertical reference light beam; and the deviation correcting alarm device is arranged on the fixed seat 40, is electrically connected with the left photoelectric sensor 43 and the right photoelectric sensor 44 and sends out an alarm signal after receiving the left shielding signal or the right shielding signal. It should be noted that, to ensure the accuracy of the data of the fabric tensile test, the vertical symmetry center lines of the left centering seat 411 and the right centering seat 412 are coincident with the tensile axis of the tensile testing machine. Optionally, the left photoelectric sensor 43 and the right photoelectric sensor 44 are reflective photoelectric sensors, and the deviation correcting alarm device may be an audible and visual alarm.
When the strip sample method fabric tensile test is carried out, in order to ensure the accuracy and reproducibility of measured data, besides the measured fabric is required to be in a vertical state as much as possible, the measured fabric is also required to be centrally and symmetrically fixed on a clamp of a tensile testing machine, so that the vertical symmetry axis of a sample is overlapped with the center line of the tensile force, and the optimal clamping state is achieved. As shown in fig. 3, when in operation, the left centering seat 411 and the right centering seat 412 can move reversely at equal intervals relative to the vertical symmetric center line, the left lifting unit moves along with the left centering seat 411, the right lifting unit moves along with the right centering seat 412, so that the horizontal distance between the beam emitted by the left photoelectric sensor 43 on the left lifting seat 421 and the beam emitted by the right photoelectric sensor 44 on the right lifting seat 423 is consistent with the width of the fabric to be tested, then the fabric to be tested is clamped onto the upper clamp 31 and the lower clamp 32, note that at this time, the gap for adjusting the position of the fabric to be tested is reserved, then the left lifting seat 421 and the right lifting seat 423 move up and down quickly respectively, the left photoelectric sensor 43 and the right photoelectric sensor 44 are in an up-down scanning state, at this time, the position of the fabric to be tested starts to be adjusted, as long as the fabric to be tested is in a state, the left photoelectric sensor 43 or the right photoelectric sensor 44 is triggered in the scanning shielding state, the fabric to be tested is in a state, the left photoelectric sensor 43 or the right photoelectric sensor 44 is triggered in the scanning state, and the alarm device is adjusted until the fabric to be tested is in a vertical state, and the alarm signal is stopped, and the alarm signal is sent out.
According to the technical scheme, the position of the tested fabric is adjusted more accurately, the centering distance adjusting unit ensures that the vertical center line of the tested fabric coincides with the tensile axis of the tensile testing machine, the tested fabric is clamped on the tensile testing machine in a centered and symmetrical mode, the tested fabric is clamped symmetrically and accurately, the accuracy and stability of the fabric tensile test are improved, and the centering distance adjusting unit is particularly suitable for testing non-woven fabrics such as non-woven fabrics.
As shown in fig. 15, the centering and distance adjusting unit 41 further includes a limiting guide slot 413 provided on the fixing base 40, wherein the left centering base 411 and the right centering base 412 are disposed in the limiting guide slot 413; a bidirectional screw rod 414, which is provided with a first thread section 4141 and a second thread section 4142, wherein the left centering seat 411 is positioned on the first thread section 4141, the right centering seat 412 is positioned on the second thread section 4142, and the left centering seat 411 and the right centering seat 412 do reverse movement under the rotation driving of the bidirectional screw rod 414; and the output end of the distance adjusting driving mechanism 415 is connected with one end of the bidirectional screw rod 414 to drive the bidirectional screw rod 414 to rotate. The first thread section 4141 is a left-handed thread, the second thread section 4142 is a right-handed thread, the left centering seat 411 is in threaded connection with the first thread section 4141, the right centering seat 412 is in threaded connection with the second thread section 4142, and the distance-adjusting driving mechanism 415 can be a servo motor or a manually rotated rotating handle. When the centering and distance adjusting unit works, the distance adjusting driving mechanism 415 drives the bidirectional screw rod 414 to rotate, and the left centering seat 411 and the right centering seat 412 do approaching or separating movements with equal moving distances.
Specifically, the left lifting driving mechanism 422 includes a left driving screw 4221 and a left lifting driving motor 4222 with an output end connected to the left driving screw 4221, the left driving screw 4221 is in threaded connection with the left lifting seat 421, and the left lifting driving motor 4222 is fixed on the left centering seat 411 to drive the left driving screw 4221 to rotate and further drive the left lifting seat 421 to move up and down; the right lifting driving mechanism 424 includes a right driving screw 4241 and a right lifting driving motor 4242 with an output end connected to the right driving screw 4241, the right driving screw 4241 is in threaded connection with the right lifting seat 423, and the right lifting driving motor 4242 is fixed on the right centering seat 412 to drive the right driving screw 4241 to rotate and further drive the right lifting seat 423 to move up and down.
In embodiment 2, this embodiment is substantially the same as embodiment 1, and only differences from embodiment 1 in main configurations are described for the sake of simplicity of description. The part not described in this embodiment is the same as embodiment 1, except that: the light detection means 4 are lasers which project a vertical line beam 40.
In operation, as shown in fig. 4, the fabric to be tested is clamped onto the upper clamp 31 and the lower clamp 32, and it is noted that the gap for adjusting the position of the fabric to be tested is not completely clamped at this time, then the laser projects a vertical linear beam 40 on the fabric to be tested, and then the vertical texture or vertical edge of the fabric to be tested can be aligned with the linear beam in parallel or overlapping manner to adjust the fabric to be tested to a vertically flat state. The technical scheme has the advantages of simple structure and simple and convenient operation, and improves the precision and stability of the fabric tensile test.
Further, the upper jig 31 and the lower jig 32 are provided with scales 33 serving as references for the positions of the measured fabrics. More preferably, the scale is made of transparent materials, and the opaque scales are arranged on the scale, so that the positions of the clamping parts above and below the measured fabric can be further adjusted according to the scales, and the scale is simple and effective.
In embodiment 3, this embodiment is substantially the same as embodiment 1, and only differences from embodiment 1 in main configurations are described for the sake of simplicity of description. The non-illustrated part of this embodiment is the same as embodiment 1, as shown in fig. 5 to 14 and fig. 16, except that: the tensile testing machine for fabric tensile testing further comprises a correction clamp for fabric tensile testing, and the correction clamp 5 comprises: a first cleat assembly 10 comprising a first upper cleat 102, a first middle cleat 101, and a first lower cleat 103, the first middle cleat 101 being removably mounted between the first upper cleat 102 and the first lower cleat 103; a second cleat assembly 20 comprising a second upper cleat 202, a second middle cleat 201, and a second lower cleat 203, the second middle cleat 201 being removably mounted between the second upper cleat 202 and the second lower cleat 203; the first clamping plate assembly 10 and the second clamping plate assembly 20 are clamped relatively by a clamping structure, so that the first upper clamping plate 102 is opposite to the second upper clamping plate 202, the first middle clamping plate 101 is opposite to the second middle clamping plate 201, and the first lower clamping plate 103 is opposite to the second lower clamping plate 203, and further the tested fabric is clamped; the length of the first middle clamping plate 101 between the first upper clamping plate 102 and the first lower clamping plate 103 is equal to the clamping distance of the fabric to be tested, and the length of the second middle clamping plate 201 between the second upper clamping plate 202 and the second lower clamping plate 203 is equal to the clamping distance of the fabric to be tested.
On the one hand, the fabric is difficult to be in a straight state as a flexible material, and on the other hand, the individual fabrics form wrinkles due to the process, storage and the like, so that the tested fabric is difficult to be adjusted to be in a straight and vertical state when the fabric tensile test is carried out. According to the technical scheme, the fabric to be tested is clamped between the first clamping plate assembly 10 and the second clamping plate assembly 20 and clamped, the fabric to be tested can be easily clamped to be flat, the fabric to be tested is restrained to be in a flat rigid state from a flexible state, then the correction clamp clamping the fabric to be tested is clamped on the upper clamp and the lower clamp of the tensile testing machine, at the moment, the upper clamp clamps the first upper clamping plate 102 and the second upper clamping plate 202, the lower clamp clamps the first lower clamping plate 103 and the second lower clamping plate 203, and then the first middle clamping plate 101 and the second middle clamping plate 201 are disassembled to restore the part of the fabric to be tested between the upper clamp and the lower clamp to be in a free state, wherein the clamped part of the first middle clamping plate 101 and the second middle clamping plate 201 is a test part of the fabric to be tested, and the vertical length of the fabric to be tested between the upper clamp and the lower clamp is ensured to meet the clamping distance required by the fabric tensile test. According to the scheme, the tested fabric can be restrained from a flexible state to a straight rigid state, the position of the tested fabric is more favorably adjusted on the tensile testing machine, the tested fabric in the straight rigid state is more easily adjusted to a central position, the tested fabric is in a better test state, and the precision and stability of the fabric tensile test are improved.
Preferably, a first upper slide bar portion 1021 is provided at the lower end of the first upper clamping plate 102, a first lower slide bar portion 1031 is provided at the upper end of the first lower clamping plate 103, a first sliding slot 1011 corresponding to the first upper slide bar portion 1021 is provided at the upper end of the first middle clamping plate 101, and a second sliding slot 1012 corresponding to the first lower slide bar portion 1031 is provided at the lower end of the first middle clamping plate 101; the lower end of the second upper clamping plate 202 is provided with a second upper sliding strip portion 2021, the upper end of the second lower clamping plate 203 is provided with a second lower sliding strip portion 2031, the upper end of the second middle clamping plate 201 is provided with a third sliding groove 2011 corresponding to the second upper sliding strip portion 2021, and the lower end of the second middle clamping plate 201 is provided with a fourth sliding groove 2012 corresponding to the second lower sliding strip portion 2031. This technical scheme makes when will press from both sides the correction anchor clamps centre gripping that detects the fabric on the upper anchor clamps and the lower anchor clamps of tensile testing machine, and first well splint 101 and second well splint 201 can be taken out from the intermediate level, will be detected the fabric and resume the free state in the part between upper anchor clamps and the lower anchor clamps, and this scheme can realize can making first punch holder 102, first well splint 101 and first lower splint 103 can the detachably amalgamation become first splint subassembly 10, and second punch holder 202, second well splint 201 and second lower splint 203 can the detachably amalgamation become second splint subassembly 20, and its simple structure easily operates.
In order to ensure that the fabric to be tested is in a straight state when being clamped by the correction clamp, the front surfaces of the first middle clamping plate 101, the first upper clamping plate 102 and the first lower clamping plate 103 are on the same plane, and the front surfaces of the second middle clamping plate 201, the second upper clamping plate 202 and the second lower clamping plate 203 are on the same plane.
Preferably, the cross sections of the first upper slide bar portion 1021, the first lower slide bar portion 1031, the second upper slide bar portion 2021 and the second lower slide bar portion 2031 are T-shaped or dovetail-shaped, and the grooves of the first sliding groove 1011, the second sliding groove 1012, the third sliding groove 2011 and the fourth sliding groove 2012 are T-shaped grooves corresponding to the T-shaped cross sections or dovetail grooves corresponding to the dovetail-shaped cross sections.
In this embodiment, the clamping structure includes a plurality of clamping holes 1022 and a plurality of buckles 2022; the clamping holes 1022 are respectively formed on the front surfaces of the first upper clamping plate 102 and the first lower clamping plate 103; the buckles 2022 are respectively arranged on the front surfaces of the second upper clamping plate 202 and the second lower clamping plate 203; the clamping holes 1022 may be clamped within the clamping holes 1022 to clamp the first cleat assembly 10 and the second cleat assembly 20 relative to each other. Specifically, the clamping hole 1022 comprises a large hole section 10221, a transition section 10222 and a small hole section 10223 which are sequentially connected, and a containing cavity 10224 which penetrates through the large hole section 10221, the transition section 10222 and the small hole section 10223; the buckle 2022 includes a clamping portion 20221 and a connecting portion 20222; the clamping portion 20221 extends into the receiving cavity 10224 through the large hole section 10221, and then the connecting portion 20222 passes through the transition section 10222 to reach the small hole section 10223, so that the clamping portion 20221 is locked in the receiving cavity 10224 at the small hole section 10223.
In operation, the first clamping plate assembly 10 is placed flat, then the fabric to be tested is placed on the front side of the first clamping plate assembly 10, wherein the portion of the fabric to be tested clamped on the tensile testing machine corresponds to the first middle clamping plate 101, and then the front side of the second clamping plate assembly 20 and the front side of the first clamping plate assembly 10 are opposite and clamped with each other. Wherein, the clamping holes 1022 and the buckles 2022 are arranged outside the area for placing the tested fabric.
In order to make the operation more intuitive and reliable, the first and second cleat assemblies 10 and 20 are made of a hard material, and the hard material is a transparent material.
More preferably, the front surfaces of the first upper clamping plate 102 and the first lower clamping plate 103 are respectively provided with a limiting protrusion 1023 for limiting the clamping position of the tested fabric in the first clamping plate assembly 10 and the second clamping plate assembly 20; the front surfaces of the second upper clamping plate 202 and the second lower clamping plate 203 are respectively provided with an avoidance portion 2023 corresponding to the limiting protrusion 1023.
As shown in fig. 10, the detected fabric can be pre-positioned on the correction clamp through the limiting protrusion, that is, the limiting protrusion is used for limiting the edge position of the detected fabric, so that the position of the detected fabric can be corrected only by correcting the position of the correction clamp, and the position of the clamp is easy to adjust because the clamp is made of hard materials, so that the position adjustment of the detected fabric is more accurate and convenient, and the accuracy and stability of the fabric tensile test are further improved.
In order to make the operation easier when the first middle clamping plate 101 and the second middle clamping plate 201 are disassembled, push-pull handles 30 are respectively arranged on the side edges of the first middle clamping plate 101 and the second middle clamping plate 201.
In this embodiment, the upper clamp 31 and the lower clamp 32 are respectively provided with a positioning groove for positioning the position of the correction clamp, and the depth of the positioning groove is smaller than the thickness of the first clamping plate assembly 10 and the second clamping plate assembly 20. The shape of the positioning groove corresponds to the shape of the correction clamp and is slightly larger than the width of the correction clamp, so that after the fabric to be tested is clamped and positioned on the correction clamp, the correction clamp can be positioned by only placing the correction clamp in the positioning groove, the fabric to be tested is positioned, the operation difficulty for adjusting the position of the fabric to be tested in the test is greatly reduced, the operation precision is improved, and the precision and stability of the fabric tensile test are further improved.
In embodiment 4, this embodiment is substantially the same as embodiment 3, and only differences from embodiment 3 in main configurations are described for the sake of simplicity of description. The part not described in this embodiment is the same as embodiment 3, except that: the clamping structure is a magnetic member disposed within the first cleat assembly 10 and the second cleat assembly 20 such that the first cleat assembly 10 and the second cleat assembly 20 are magnetically attracted toward each other. Specifically, the first upper clamping plate 102 is internally provided with a first permanent magnet, the second upper clamping plate 202 is internally provided with iron or a second permanent magnet attracted to the first permanent magnet, and it should be noted that the attraction refers to mutual attraction when the front sides of the first upper clamping plate 102 and the second upper clamping plate 202 are opposite, and similarly, the first lower clamping plate 103 is internally provided with a third permanent magnet, and the second lower clamping plate 203 is internally provided with iron or a fourth permanent magnet attracted to the third permanent magnet. Of course, the two magnetic pieces that are attracted to each other may be placed in the first middle clamping plate 101 and the second middle clamping plate 201, respectively, so that the front sides of the first middle clamping plate 101 and the second middle clamping plate 201 are attracted to each other when they are opposite to each other. The above technical solution makes the clamping of the first clamping plate assembly 10 and the second clamping plate assembly 20 more convenient and effective, and ensures that the tested fabric is clamped more conveniently and stably while the structure is simple.
In summary, the present application has the following beneficial effects:
1. the optical detection device is arranged on the tensile testing machine, when the tested fabric is clamped, the position of the tested fabric is adjusted according to the reference beam emitted by the optical detection device, so that the tested fabric is vertically clamped on the tensile testing machine, the adjustment operation can be more accurate according to the adjustment of the reference beam, and the accuracy and the stability of the fabric tensile test are further improved.
2. The centering and distance adjusting unit ensures that the vertical center line of the tested fabric coincides with the tensile axis of the tensile testing machine, so that the upper clamp and the lower clamp can clamp the tested fabric more symmetrically and accurately, and the accuracy of the fabric tensile test is further improved.
3. The correction clamp is characterized in that the detected fabric is placed between the first clamping plate assembly and the second clamping plate assembly and clamped, the detected fabric can be restrained from a flexible state to a straight rigid state, the position and the state of the detected fabric are more favorably adjusted on the tensile testing machine, the detected fabric is in a better testing state, and the accuracy and the stability of a fabric tensile test are improved.
4. The detected fabric can be positioned in advance on the correction clamp through the limiting protrusions, namely the edge position of the detected fabric is limited by the limiting protrusions, the position of the detected fabric can be corrected only by correcting the position of the correction clamp, and the position of the detected fabric is easy to adjust due to the fact that the clamp is made of hard materials, the position of the detected fabric is adjusted more accurately and conveniently, and the accuracy and the stability of the fabric tensile test are improved.
It should be understood that the terms "first," "second," and the like are used in this application to describe various information, but the information should not be limited to these terms, which are used only to distinguish one type of information from another. For example, a "first" message may also be referred to as a "second" message, and similarly, a "second" message may also be referred to as a "first" message, without departing from the scope of the present application. Furthermore, references to orientations or positional relationships by the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., are based on the orientations or positional relationships shown in the drawings, are merely for purposes of describing the present application and simplifying the description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be configured and operated in a particular orientation, and therefore should not be construed as limiting the present application.
The foregoing description of one or more embodiments provided in connection with the specific disclosure is not intended to limit the practice of this application to such description. Any approximation, or substitution of techniques for the methods, structures, etc. of the present application or for the purposes of making a number of technological deductions based on the concepts of the present application should be considered as the scope of protection of the present application.
Claims (7)
1. A correction anchor clamps for fabric tensile test, characterized by, include:
a first cleat assembly (10) comprising a first upper cleat (102), a first middle cleat (101) and a first lower cleat (103), the first middle cleat (101) being removably mounted between the first upper cleat (102) and the first lower cleat (103);
a second cleat assembly (20) comprising a second upper cleat (202), a second middle cleat (201) and a second lower cleat (203), the second middle cleat (201) being removably mounted between the second upper cleat (202) and the second lower cleat (203);
the first clamping plate assembly (10) and the second clamping plate assembly (20) are clamped relatively through a clamping structure, so that the first upper clamping plate (102) and the second upper clamping plate (202) are opposite to the first middle clamping plate (101) and the second middle clamping plate (201) and the first lower clamping plate (103) and the second lower clamping plate (203) respectively, and further the tested fabric is clamped;
the length of the first middle clamping plate (101) between the first upper clamping plate (102) and the first lower clamping plate (103) is equal to the clamping distance of the fabric to be tested, and the length of the second middle clamping plate (201) between the second upper clamping plate (202) and the second lower clamping plate (203) is equal to the clamping distance of the fabric to be tested;
the lower end of the first upper clamping plate (102) is provided with a first upper sliding strip part (1021), the upper end of the first lower clamping plate (103) is provided with a first lower sliding strip part (1031), the upper end of the first middle clamping plate (101) is provided with a first sliding groove (1011) corresponding to the first upper sliding strip part (1021), and the lower end of the first middle clamping plate (101) is provided with a second sliding groove (1012) corresponding to the first lower sliding strip part (1031);
the lower end of the second upper clamping plate (202) is provided with a second upper sliding strip part (2021), the upper end of the second lower clamping plate (203) is provided with a second lower sliding strip part (2031), the upper end of the second middle clamping plate (201) is provided with a third sliding groove (2011) corresponding to the second upper sliding strip part (2021), and the lower end of the second middle clamping plate (201) is provided with a fourth sliding groove (2012) corresponding to the second lower sliding strip part (2031);
the front surfaces of the first upper clamping plate (102) and the first lower clamping plate (103) of the first middle clamping plate (101) are positioned on the same plane, and the front surfaces of the second upper clamping plate (202) and the second lower clamping plate (203) of the second middle clamping plate (201) are positioned on the same plane;
the clamping structure comprises a plurality of clamping holes (1022) and a plurality of buckles (2022); the clamping holes (1022) are respectively formed in the front surfaces of the first upper clamping plate (102) and the first lower clamping plate (103); the buckles (2022) are respectively arranged on the front surfaces of the second upper clamping plate (202) and the second lower clamping plate (203); the clamping hole (1022) is clampable within the clamping hole (1022) to clamp the first cleat assembly (10) and the second cleat assembly (20) relative to each other.
2. The correction jig for fabric tensile test according to claim 1, characterized in that the first upper slide bar portion (1021) and the second upper slide bar portion (2021) and the second lower slide bar portion (2031) are each T-shaped or dovetail-shaped in cross section, and the first sliding groove (1011) and the second sliding groove (1012) and the third sliding groove (2011) and the fourth sliding groove (2012) are each a T-shaped groove corresponding to a T-shaped cross section or a dovetail groove corresponding to a dovetail-shaped cross section.
3. Correction clamp for fabric tensile test according to claim 1, characterized in that the clamping hole (1022) comprises a transition section (10222) and a small hole section (10223) of a large hole section (10221) and a containing cavity (10224) penetrating the transition section (10222) and the small hole section (10223) of the large hole section (10221) connected in sequence; the buckle (2022) comprises a clamping part (20221) and a connecting part (20222); the clamping part (20221) penetrates through the large hole section (10221) to extend into the accommodating cavity (10224), and then the connecting part (20222) passes through the transition section (10222) to reach the small hole section (10223), so that the clamping part (20221) is locked in the accommodating cavity (10224) at the small hole section (10223).
4. The calibration jig for fabric tensile testing according to claim 1, characterized in that the clamping structure is a magnetic member provided in the first clamping plate assembly (10) and the second clamping plate assembly (20) to magnetically attract the clamping of the first clamping plate assembly (10) and the second clamping plate assembly (20) to each other.
5. The correction clamp for fabric tensile test according to claim 1, characterized in that the front surfaces of the first upper clamping plate (102) and the first lower clamping plate (103) are respectively provided with a limiting protrusion (1023) for limiting the clamping position of the tested fabric in the first clamping plate assembly (10) and the second clamping plate assembly (20); the front surfaces of the second upper clamping plate (202) and the second lower clamping plate (203) are respectively provided with an avoidance part (2023) corresponding to the limiting bulge (1023).
6. Correction clamp for fabric tensile testing according to claim 1, characterized in that the first clamping plate assembly (10) and the second clamping plate assembly (20) are made of transparent hard material.
7. Correction clamp for fabric tensile test according to claim 1, characterized in that push-pull handles (30) are provided on the sides of the first middle clamp plate (101) and the second middle clamp plate (201), respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811139707.5A CN109100218B (en) | 2018-09-28 | 2018-09-28 | Correction clamp for fabric tensile test |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811139707.5A CN109100218B (en) | 2018-09-28 | 2018-09-28 | Correction clamp for fabric tensile test |
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| CN109100218A CN109100218A (en) | 2018-12-28 |
| CN109100218B true CN109100218B (en) | 2024-02-27 |
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| CN201811139707.5A Active CN109100218B (en) | 2018-09-28 | 2018-09-28 | Correction clamp for fabric tensile test |
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| CN109883748A (en) * | 2019-04-02 | 2019-06-14 | 无锡厦泰生物科技有限公司 | A kind of separate type low-heat leads TEC detection device |
| CN110376111B (en) * | 2019-07-17 | 2022-05-17 | 惠州亿纬锂能股份有限公司 | Method for judging liquid seepage effect of lithium battery roll core and auxiliary tool thereof |
| DE212020000011U1 (en) * | 2020-02-14 | 2020-04-02 | Suzhou Huihua New Material Technology Co. , Ltd. | A special device for tensile testing of textile materials |
| CN114632839B (en) * | 2022-03-24 | 2023-04-28 | 珠海格力电器股份有限公司 | Correction apparatus and correction method |
| CN117723383B (en) * | 2024-02-16 | 2024-05-03 | 合肥工业大学 | Ultrathin plate preassembled type stretching clamping device and application method thereof |
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