CN106525578A - Pieces tensile testing machine - Google Patents
Pieces tensile testing machine Download PDFInfo
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- CN106525578A CN106525578A CN201510583750.0A CN201510583750A CN106525578A CN 106525578 A CN106525578 A CN 106525578A CN 201510583750 A CN201510583750 A CN 201510583750A CN 106525578 A CN106525578 A CN 106525578A
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- 238000009864 tensile test Methods 0.000 title abstract description 11
- 230000007246 mechanism Effects 0.000 claims abstract description 13
- 238000012360 testing method Methods 0.000 claims abstract description 7
- 238000011144 upstream manufacturing Methods 0.000 claims description 5
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000008901 benefit Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
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Abstract
A pieces tensile testing machine is used to measure the tensile resistant value of pieces fixed on a brush head. The pieces tensile testing machine comprises a pulling device (1), a pieces chuck (2), a base plate (3), a frame (4) fixed on the base plate (3), a motor (5), a start button (51) of the motor (5), a brush head clamp (6) for positioning a brush head, a clamp slide board (7), and a moving mechanism (8). The brush head clamp (6) slides back and forth along the Y axis and is connected to the clamp slide board (7). The clamp slide board (7) slides left and right along the X axis and is connected to the base plate (3). The X axis and Y axis are perpendicular to each other. The motor (5) drives the pulling device (1) to go upwards or downwards through the moving mechanism (8). The pieces chuck (2) is hung under the pulling device (1) and over the brush head clamp (6). The provided pieces tensile testing machine can largely improve the accuracy of pieces tensile tests, and does not need artificial operation, and the tests are convenient and fast.
Description
Technical field
The present invention relates to a kind of measurer for pulling force, more particularly to a kind of to plant the pieces measurer for pulling force for testing the resistance to pulling force of single hole pieces after hair for toothbrush, differentiate that toothbrush plants the pulling tension requirements whether hair reaches regulation by tensile test.
Background technology
Traditional pieces pull force test method be by toothbrush single hole pieces clamp after, hang on chest expander, then hold head toothbrushes with manual type both hands and pull out pieces, read the maximum pull numerical value shown on chest expander.But this traditional test mode is because the uncoordinated unification of artificial manipulation, when pulling out it cannot be guaranteed that be mutually perpendicular to chest expander, it is inconsistent that pieces pulls out speed speed to pieces, causes numerical bias big, as a result not accurate enough.
The content of the invention
Defect of the present invention for prior art, there is provided the accurate pieces measurer for pulling force of the convenient to operation, result of one kind.
Technical scheme is as follows：
A kind of pieces measurer for pulling force, the resistance to value of thrust of the pieces being implanted in for test on brush, including：Chest expander, pieces chuck, base plate and the frame being fixed on the base plate；Additionally include：Motor and its start button, the brush fixture for brush is positioned, fixture slide plate and travel mechanism.
The brush fixture is connected to the fixture slide plate along Y-axis slide anteroposterior, and the fixture slide plate horizontally slips along X-axis and is connected to the base plate, and the X-axis and Y-axis are mutually perpendicular to；The motor drives the chest expander upstream or downstream, the pieces chuck to hang on below the chest expander and be located at the top of the brush fixture by travel mechanism.
The travel mechanism includes：It is connected to the motor output end and the screw rod perpendicular to the X-axis and Y-axis, chest expander fixed plate, is fixedly arranged on the nut that the chest expander fixes back；The chest expander is fixed on the front of the chest expander fixed plate, and the nut is socketed on the screw rod, and the motor rotates and pass through screw rod and nut drives the chest expander fixed plate upstream or downstream.
Two vertical guides parallel to the screw rod in left and right are fixedly provided with the frame, and the chest expander fixed plate is slidably connected in the vertical guide of the left and right two.
The brush fixture includes：Clamping fixture seat, the fixing clip for being fixed on the clamping fixture seat, the slip fixture block and elastic component for being slidably connected to clamping fixture seat；The resilient element urges slip fixture blocks is drawn close to the fixing clip, is provided with flange at the top of the fixing clip and slip fixture block opposite side.
The left and right sides of the fixture slide plate top surface is respectively provided with a slide rail along Y-axis trend, and the clamping fixture seat bottom surface left and right sides is respectively provided with a slide block and is separately mounted at the slide rail of left and right；The base plate is provided with two slide bars of before and after along X-axis trend, and the fixture slide plate bottom is provided with former and later two slide blocks and is slidably socketed before and after this respectively at two slide bars.
The pieces chuck includes that pieces draws muzzle and trip bolt；The pieces draws muzzle to be provided with the inner chamber through top and bottom, and the internal chamber wall is provided with internal thread, and the foot of the inner chamber is the mouth that the aperture confession pieces little compared with top is entered, and the inner chamber above the mouth is in back taper；Trip bolt side wall is provided with the external screw thread of the internal thread matching for drawing muzzle with the pieces, and the bottom of the trip bolt is in back taper.
From top to bottom it is installed with successively in the frame and the standby microswitch of upper limit by row of the motor connection, the standby microswitch of lower limit by row, upper limit by row microswitch and lower limit by row microswitch, the side wall of the chest expander fixed plate is provided with the contact block of upper and lower two evaginations with above-mentioned microswitch corresponding position；When the contact block touches on described limit by row microswitch or the standby microswitch of upper limit by row, the motor reversal drives the chest expander fixed plate and chest expander descending, when the contact block touches the lower limit by row microswitch or the standby microswitch of lower limit by row, the motor stalling.
The motor is adjustable speed motor and is connected with speed setting controller.
The travel mechanism bottom is installed with a downstream buffer rubber by a connecting rod.
Compared with prior art, pieces measurer for pulling force of the invention has the advantage that：
1. motor speed regulating control is adopted when operating; during protection tensile test, speed is balanced; and because fixture is slidably connected to base plate along X-axis and Y-axis; during plucking beam fixture automatically calibrating position so as to chest expander keep plumbness; ensure that chest expander vertically pulls pieces; thus the degree of accuracy of pieces tensile test is greatly improved, reduction manually operates the deviation brought lack of standardization；
2. one-touch electric operating is adopted, automatically return resets downwards chest expander after up pull-out pieces, improve service speed and convenient to operation, operate without the need for special messenger.
Description of the drawings
Fig. 1 is the structural representation of pieces measurer for pulling force of the present invention；
Fig. 2 is the exploded view of pieces measurer for pulling force of the present invention；
Fig. 3 is the structural representation of the brush fixture 6；
Fig. 4 is the exploded view of the brush fixture 6；
Fig. 5 is the profile of the brush fixture 6；
Fig. 6 is the structural representation of 3 bottom of the base plate；
Fig. 7 is the exploded view of the pieces chuck 2；
Fig. 8 is the profile of the pieces chuck 2.
Specific embodiment
Below in conjunction with the accompanying drawings illustrating one embodiment of the present of invention.
As depicted in figs. 1 and 2, pieces measurer for pulling force of the invention is implanted in the resistance to value of thrust of the pieces 30 on brush 20 for test, and which includes:Chest expander 1, pieces chuck 2, base plate 3, the frame 4 being fixed on the base plate 3, motor 5 and its start button 51, the brush fixture 6 for brush is positioned, fixture slide plate 7 and travel mechanism 8.Below above-mentioned each part is described in detail.
As shown in Fig. 3, Fig. 4 and Fig. 5, the brush fixture 6 is for clamping the tensile test to carry out pieces securely by brush head component to be tested such as toothbrush 10.The brush fixture 6 includes：Clamping fixture seat 61, the fixing clip 62 for being fixed on the clamping fixture seat 61, the slide guide round pin 67 of elastic component 64, two of slip fixture block 63, two for being slidably connected to clamping fixture seat 61 and two adjusting screws 68.
The fixing clip 62 is L-shaped and the side that is fixed at the top of clamping fixture seat 61, and the opposite side at the top of the clamping fixture seat 61 is installed with a limited block 66, and the clamping fixture seat 61, fixing clip 62 and limited block 66 can be integrally formed.The slip fixture block 63 is folded between fixing clip 62 and limited block 66.Two slide guide round pins 67 are arranged in fixing clip 62, slip fixture block 63 and limited block 66, and described two elastic components 64 using compression spring and are respectively fitted over outside two slide guide round pins 67 in the present embodiment.Two adjusting screws 68 from limited block 66 are screwed in and are offseted with one end of compression spring 64, the other end of compression spring 64 is offseted with slip fixture block 63, so that the slip fixture block 63 can slide along slide guide round pin 67 and draw close to 62 direction of the fixing clip, so as to the brush 20 to being folded between fixing clip 62 and slip fixture block 63 forms a chucking power.
In addition, being equipped with flange 65 at the top of 63 opposite side of the fixing clip 62 and slip fixture block, the both sides at the top of the brush 20 are stuck under two side flanges 65, and the brush 20 is pulled out when can so prevent from pulling up pieces 30 brush fixture 6 upwards.
As shown in Figure 1, Figure 2 with shown in Fig. 6, the fixture slide plate 7 is folded between brush fixture 6 and base plate 3, and the left and right sides of 7 top surface of fixture slide plate is respectively provided with a slide rail 71 along Y-axis trend, and 7 bottom of fixture slide plate is then provided with former and later two slide blocks 72.The 61 bottom surface left and right sides of the clamping fixture seat is respectively provided with a slide block and is separately mounted at left and right slide rail 71, and this causes the brush fixture 6 can be along 71 slide anteroposterior of left and right slide rail.The base plate 3 is provided with two slide bars 31 of before and after along X-axis trend, former and later two slide blocks 72 of 7 bottom of fixture slide plate are slidably socketed before and after this at two slide bars 31 respectively, thus the fixture slide plate 7 can horizontally slip along slide bar 31, and final result is that the brush fixture 6 can slide along X-axis and Y-axis.X-axis noted earlier and Y-axis are mutually perpendicular to and parallel to horizontal plane.
As depicted in figs. 1 and 2, the travel mechanism 8 includes：It is connected to 5 output end of the motor and the screw rod 81 perpendicular to the X-axis and Y-axis, chest expander fixed plate 82, is fixedly arranged on the nut 83 at 82 back side of chest expander fixed plate.The chest expander 1 is fixed on the front of the chest expander fixed plate 82, and the nut 83 is socketed on the screw rod 81, so, will pass through screw rod 81 and nut 83 drives 82 upstream or downstream of chest expander fixed plate when the motor 5 is rotated forward or backwards.In order to ensure that chest expander fixed plate 82 remains perpendicular to the direction movement of X-axis and Y-axis, 4 front portion of the frame is fixedly provided with two vertical guides 41 parallel to the screw rod 81 in left and right, and the chest expander fixed plate 82 is slidably connected in the vertical guide 41 of the left and right two.
As depicted in figs. 1 and 2,4 back of the frame is installed with distribution box 53, and the motor 5 is adopted adjustable speed motor in the present embodiment and is connected with speed setting controller 52.The speed setting controller 52 and start button 51 are arranged on 53 front of distribution box.
Such as Fig. 1, in order to control the upper and lower stroke of chest expander fixed plate 82,4 side of the frame is from top to bottom installed with the standby microswitch 91 of the upper limit by row being connected with the motor 5, the standby microswitch 92 of lower limit by row, upper limit by row microswitch 93 and lower limit by row microswitch 94 successively.The side wall of the chest expander fixed plate 82 is provided with the contact block 95 of upper and lower two evaginations with above-mentioned microswitch corresponding position.When the contact block 95 touches on described limit by row microswitch 93 or the standby microswitch 91 of upper limit by row, the reversion of the motor 5 drives the chest expander fixed plate 82 descending, when the contact block 95 touches the lower limit by row microswitch 94 or the standby microswitch 92 of lower limit by row, the motor 5 is stalled.Wherein, the standby microswitch of the upper limit by row 91 is to play standby up position-limiting action in upper 93 failure of limit by row microswitch, and the standby microswitch of lower limit by row 92 is then to play standby descending position-limiting action in lower 94 failure of limit by row microswitch.
The initial position of the chest expander fixed plate 82 is positioned at descending extreme position, when start button 51 is pressed, the motor 5 is rotated forward and drives chest expander fixed plate 82 up, during supreme limit by row position, the contact block 95 touches upper limit by row microswitch 93, when the reversion of the motor 5 drives the chest expander fixed plate 82 to come downwards to again initial descending extreme position, when contact block 95 touches lower limit by row microswitch 94, motor 5 is stalled.
In order to prevent descending impulse force excessive, as shown in Fig. 28 bottom of the travel mechanism is installed with a downstream buffer rubber 85 by a connecting rod 84.
The chest expander 1 can adopt common newton kilogram table, the chest expander 1 be fixed on the front of chest expander fixed plate 82 and with the chest expander fixed plate 82 it is upper shifting or move down.The pieces chuck 2 hangs on below the chest expander 1 and is located at the top of the brush fixture 6.
As shown in Figure 7 and Figure 8, the pieces chuck 2 includes that pieces draws muzzle 21 and trip bolt 22, the pieces draws muzzle 21 to be provided with the inner chamber through top and bottom, the internal chamber wall is provided with internal thread 23, the foot of the inner chamber is the mouth 24 that the aperture confession pieces little compared with top is entered, and the inner chamber 26 above the mouth 24 is in back taper.22 side wall of the trip bolt is provided with the external screw thread 25 of the matching of internal thread 23 for drawing muzzle 21 with the pieces, and the trip bolt 22 has back taper bottom 27.Pieces is drawn after muzzle 21 from the insertion pieces of mouth 24, and 22 precession pieces of trip bolt is drawn muzzle 21, and the back taper bottom 27 of the trip bolt 22 can be stuck in the joint of the mouth 24 and back taper inner chamber 26 so as to pieces is clamped.
When carrying out pieces tensile test, pieces is inserted into pieces chuck 2 first and is locked, then brush 20 is loaded into brush fixture 6, pieces chuck 2 is hung into upper pulling force device 1, finally press start button 51, motor 5 is rotated forward, the drive of chest expander fixed plate 82 chest expander 1 is up, and pieces chuck 2 pulls up pieces 30, as brush fixture 6 can slide along X-axis and Y-axis, brush 20 can be moved to perpendicular to the position of 1 pulling force of chest expander under a stretching force, thus can greatly increase the accuracy of tensile test result.Chest expander 1 continues up and can voluntarily return initial position after pulling out pieces in the presence of microswitch, reads the numerical value on chest expander 1 and can draw value of thrust.It can be seen that after start button 51 is pressed, whole test process operates very convenient quick without the need for manually participating in carrying out automatically.
The preferred embodiments of the present invention are the foregoing is only, the present invention is not limited to, for a person skilled in the art, the present invention there can be various modifications and variations.All any modification, equivalent substitution and improvements within the spirit and principles in the present invention, made etc., should be included within the scope of the present invention.
Claims (9)
1. a kind of pieces measurer for pulling force, the resistance to value of thrust of the pieces being implanted in for test on brush, including：Chest expander（1）, pieces chuck（2）, base plate（3）And it is fixed on the base plate（3）On frame（4）；Characterized in that, also including：
Motor（5）And its start button（51）, brush fixture for brush is positioned（6）, fixture slide plate（7）And travel mechanism（8）；
The brush fixture（6）The fixture slide plate is connected to along Y-axis slide anteroposterior（7）, the fixture slide plate（7）Horizontally slip along X-axis and be connected to the base plate（3）, the X-axis and Y-axis are mutually perpendicular to；The motor（5）By travel mechanism（8）Drive the chest expander（1）Upstream or downstream, the pieces chuck（2）Hang on the chest expander（1）Lower section is simultaneously located at the brush fixture（6）Top.
2. pieces measurer for pulling force according to claim 1, it is characterised in that the travel mechanism（8）Including：It is connected to the motor（5）Output end and perpendicular to the X-axis and the screw rod of Y-axis（81）, chest expander fixed plate（82）, be fixedly arranged on the chest expander fixed plate（82）The nut at the back side（83）；The chest expander（1）It is fixed on the chest expander fixed plate（82）Front, the nut（83）It is socketed on the screw rod（81）On, the motor（5）Rotate and pass through screw rod（81）And nut（83）Drive the chest expander fixed plate（82）Upstream or downstream.
3. pieces measurer for pulling force according to claim 2, it is characterised in that：The frame（4）On be fixedly provided with left and right two parallel to the screw rod（81）Vertical guide（41）, the chest expander fixed plate（82）It is slidably connected to the vertical guide of the left and right two（41）On.
4. the pieces measurer for pulling force according to claim 1,2 or 3, it is characterised in that the brush fixture（6）Including：Clamping fixture seat（61）, be fixed on the clamping fixture seat（61）Fixing clip（62）, be slidably connected to clamping fixture seat（61）Slip fixture block（63）, and elastic component（64）；The elastic component（64）Promote the slip fixture block（63）To the fixing clip（62）Draw close, the fixing clip（62）With slip fixture block（63）Flange is provided with the top of opposite side（65）.
5. pieces measurer for pulling force according to claim 4, it is characterised in that：The fixture slide plate（7）The left and right sides of top surface is respectively provided with a slide rail along Y-axis trend（71）, the clamping fixture seat（61）The bottom surface left and right sides is respectively provided with a slide block and is separately mounted to left and right slide rail（71）Place；The base plate（3）Two slide bars of before and after are provided with along X-axis trend（31）, the fixture slide plate（7）Bottom is provided with former and later two slide blocks and is slidably socketed two slide bars before and after this respectively（31）Place.
6. the pieces measurer for pulling force according to claim 1,2 or 3, it is characterised in that：The pieces chuck（2）Muzzle is drawn including pieces（21）And trip bolt（22）；The pieces draws muzzle（21）The inner chamber through top and bottom is provided with, the internal chamber wall is provided with internal thread（23）, the foot of the inner chamber is the mouth that the aperture confession pieces little compared with top is entered（24）, the mouth（24）The inner chamber of top is in back taper；The trip bolt（22）Side wall is provided with and draws muzzle with the pieces（21）Internal thread（23）The external screw thread of matching（25）, the trip bolt（22）Bottom be in back taper.
7. the pieces measurer for pulling force according to Claims 2 or 3, it is characterised in that：The frame（4）On be from top to bottom installed with successively and the motor（5）The standby microswitch of upper limit by row of connection（91）, the standby microswitch of lower limit by row（92）, upper limit by row microswitch（93）With lower limit by row microswitch（94）, the chest expander fixed plate（82）Side wall and above-mentioned microswitch corresponding position be provided with the contact block of upper and lower two evaginations（95）；In the contact block（95）Touch the upper limit by row microswitch（93）Or the standby microswitch of upper limit by row（91）When, the motor（5）Reversion drives the chest expander fixed plate（82）And chest expander（1）It is descending, in the contact block（95）Touch the lower limit by row microswitch（94）Or the standby microswitch of lower limit by row（92）When, the motor（5）Stalling.
8. the pieces measurer for pulling force according to claim 1,2 or 3, it is characterised in that：The motor（5）For adjustable speed motor and speed setting controller（52）Connection.
9. the pieces measurer for pulling force according to claim 1,2 or 3, it is characterised in that：The travel mechanism（8）Bottom passes through a connecting rod（84）It is installed with a downstream buffer rubber（85）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510583750.0A CN106525578A (en) | 2015-09-15 | 2015-09-15 | Pieces tensile testing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510583750.0A CN106525578A (en) | 2015-09-15 | 2015-09-15 | Pieces tensile testing machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106525578A true CN106525578A (en) | 2017-03-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510583750.0A Pending CN106525578A (en) | 2015-09-15 | 2015-09-15 | Pieces tensile testing machine |
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| CN (1) | CN106525578A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107144462A (en) * | 2017-04-13 | 2017-09-08 | 东莞长盈精密技术有限公司 | Pulling capacity measurement jig |
| CN107478573A (en) * | 2017-09-28 | 2017-12-15 | 北京小米移动软件有限公司 | The detection tool and characterization processes of housing unit |
| CN108956327A (en) * | 2018-08-15 | 2018-12-07 | 广东出入境检验检疫局检验检疫技术中心 | A kind of toothbrush bristle strength tester |
| CN109084923A (en) * | 2018-09-19 | 2018-12-25 | 深圳市东方拓宇科技有限公司 | A kind of test device for assembling nut pullout forces |
| CN113899618A (en) * | 2021-10-29 | 2022-01-07 | 扬州晨笑刷业有限公司 | Automatic change toothbrush brush hair detection device |
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| JP2000249635A (en) * | 1999-03-03 | 2000-09-14 | Taihei Kogyo Kk | Flocked fabric strength measuring instrument for brush |
| BE1014888A3 (en) * | 1997-03-26 | 2004-06-01 | Zahoransky Anton Gmbh & Co | Method and device for testing the strength of beams of brush bristles. |
| CN201060131Y (en) * | 2007-07-05 | 2008-05-14 | 王兴卫 | Toothbrush bristle measuring apparatus |
| CN203672712U (en) * | 2014-01-02 | 2014-06-25 | 苏州方林科技股份有限公司 | Pulling force testing machine |
| CN203758838U (en) * | 2014-01-21 | 2014-08-06 | 肇庆理士电源技术有限公司 | Device for testing welding strength of battery patch |
| CN204027926U (en) * | 2014-01-13 | 2014-12-17 | 东莞市海达仪器有限公司 | A kind of button pulling force precision measurement machine |
| CN104792696A (en) * | 2015-04-28 | 2015-07-22 | 光明乳业股份有限公司 | Device and method for detecting heat seal strength of container cover membrane |
| CN205049279U (en) * | 2015-09-15 | 2016-02-24 | 广东雪洁日化用品有限公司 | Pieces tensile test machine |
-
2015
- 2015-09-15 CN CN201510583750.0A patent/CN106525578A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE1014888A3 (en) * | 1997-03-26 | 2004-06-01 | Zahoransky Anton Gmbh & Co | Method and device for testing the strength of beams of brush bristles. |
| JP2000249635A (en) * | 1999-03-03 | 2000-09-14 | Taihei Kogyo Kk | Flocked fabric strength measuring instrument for brush |
| CN201060131Y (en) * | 2007-07-05 | 2008-05-14 | 王兴卫 | Toothbrush bristle measuring apparatus |
| CN203672712U (en) * | 2014-01-02 | 2014-06-25 | 苏州方林科技股份有限公司 | Pulling force testing machine |
| CN204027926U (en) * | 2014-01-13 | 2014-12-17 | 东莞市海达仪器有限公司 | A kind of button pulling force precision measurement machine |
| CN203758838U (en) * | 2014-01-21 | 2014-08-06 | 肇庆理士电源技术有限公司 | Device for testing welding strength of battery patch |
| CN104792696A (en) * | 2015-04-28 | 2015-07-22 | 光明乳业股份有限公司 | Device and method for detecting heat seal strength of container cover membrane |
| CN205049279U (en) * | 2015-09-15 | 2016-02-24 | 广东雪洁日化用品有限公司 | Pieces tensile test machine |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107144462A (en) * | 2017-04-13 | 2017-09-08 | 东莞长盈精密技术有限公司 | Pulling capacity measurement jig |
| CN107144462B (en) * | 2017-04-13 | 2020-06-02 | 东莞长盈精密技术有限公司 | Drawing force testing jig |
| CN107478573A (en) * | 2017-09-28 | 2017-12-15 | 北京小米移动软件有限公司 | The detection tool and characterization processes of housing unit |
| CN108956327A (en) * | 2018-08-15 | 2018-12-07 | 广东出入境检验检疫局检验检疫技术中心 | A kind of toothbrush bristle strength tester |
| CN109084923A (en) * | 2018-09-19 | 2018-12-25 | 深圳市东方拓宇科技有限公司 | A kind of test device for assembling nut pullout forces |
| CN113899618A (en) * | 2021-10-29 | 2022-01-07 | 扬州晨笑刷业有限公司 | Automatic change toothbrush brush hair detection device |
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Application publication date: 20170322 |