CN200958989Y - Clamping head for traction meter - Google Patents
Clamping head for traction meter Download PDFInfo
- Publication number
- CN200958989Y CN200958989Y CN 200620127663 CN200620127663U CN200958989Y CN 200958989 Y CN200958989 Y CN 200958989Y CN 200620127663 CN200620127663 CN 200620127663 CN 200620127663 U CN200620127663 U CN 200620127663U CN 200958989 Y CN200958989 Y CN 200958989Y
- Authority
- CN
- China
- Prior art keywords
- chuck
- pressure spring
- sample
- chute
- boss
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 210000003127 knee Anatomy 0.000 claims description 10
- 238000000034 method Methods 0.000 abstract description 5
- 238000005070 sampling Methods 0.000 abstract 2
- 238000012360 testing method Methods 0.000 description 6
- 238000005259 measurement Methods 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 1
- 238000013031 physical testing Methods 0.000 description 1
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- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The utility model discloses a chuck used for an elongated meter and comprises a chuck body, a rear chuck and a front chuck. A sliding tank is arranged on the chuck and the T shaped rear chuck is inserted into the sliding tank and one side of the T shaped rear chuck is provided with a handle button and a small hole which is the same as the convex plate. The front chuck of the bent rod is inserted within the two small holes and can slide. A pressure spring is arranged on the front chuck of the bent rod and one end of the pressure spring goes against the on the beam of the T shaped rear chuck and the other end is located by an adjusting screw. The utility model has the advantage of wide range of mobility, good suitability, avoiding the sampling being thin after bearing lengthwise drawing force to make the chuck slide due to being unable to be adjusted with the following change and guaranteeing the chuck to be held by a proper power and prevent the sampling from sliding in the process of stretching or from pinching off due to a large holding force.
Description
Technical field:
The utility model relates to a kind ofly measures test apparatus to deflection in the tension test of nonmetallic materials, particularly relate to a kind of extensometer chuck.
Background technology:
Carry out physical testing at the rubber plastic product, all need to measure the breaking elongation or the deflection of sample when particularly doing tension test.The initial method of measuring the sample deformation amount is directly to measure with ruler or slide calliper rule, because sample is in the continuous change procedure, so be difficult to ruler or slide calliper rule its deflection be accurately measured, measured deviation is bigger.And the extensometer measurement mechanism can reduce personal error greatly, for test provides data more accurately.The extensometer chuck is a vitals of extensometer, and the chuck of a large amount of extensometers of selling in the existing market all ubiquity several problems: (1) sample holder scope is little, and the opening width of chuck is too little, can not the thicker sample of clamping, and narrow application range; (2) servo-actuated is poor.Behind the sample deformation, its thickness changes, and chuck can not change thereupon, causes chuck to depart from graticule or slippage.(3) holding force is difficult for adjusting, and slippage sometimes or pinch off sample cause test failure in the test.
Summary of the invention:
The problem that the utility model exists at prior art, a kind of extensometer chuck is provided, technical matters to be solved is to increase the sample holder scope, make chuck structure reasonable, clamping is firm, servo-actuated is good, and be easy to adjust holding force, easy to operate, technical solution adopted in the utility model is as follows, the utility model comprises collet body, back chuck and preceding chuck, one end of collet body can be installed on the guide bearing for the card shape, it is characterized in that collet body is provided with chute, the chute bottom side is provided with boss, boss is provided with hand button and aperture, and chuck is inserted in the chute behind the T-shaped shape, and locatees by the spring pressuring plate of chute side, be provided with on the fourth beam of chuck one side behind the T-shaped shape with boss on same hand button and aperture, chuck is inserted in these two apertures before the knee, and slidably, is provided with pressure spring on the bar of chuck before knee, one end of pressure spring withstands on the fourth beam of chuck one side behind the T-shaped shape, and the other end is adjusted the nut location by one.
Principle of work:
Live the hand button on the chuck and boss after the T-shaped with hand, firmly compress chuck after the T-shaped left, chuck leaves the preceding chuck of knee after making T-shaped, adjust clip position, the sample holder point is in after the T-shaped before the chuck and knee in the middle of the chuck, unclamp two little hand buttons, pressure spring with T-shaped after chuck press to sample, and appropriateness clamp sample.In the drawing process, sample is because of being subjected to the attenuation of longitudinal stretching power, because pressure spring is pushed down chuck after the T-shaped always, so during the sample attenuation, chuck can move to the sample center position after the T-shaped thereupon, chuck also moves to the sample center position before the knee simultaneously, push down sample simultaneously, can landing, up to sample fracture, the extensometer chuck all can moderately be clamped sample.
Compared with prior art, the utility model (1) has the mobility of wide region, and the preceding chuck of chuck and bar can freely stretch after the T-shaped, can better adjust the clip position of chuck and sample like this, and adaptivity is good; (2) position of chuck can freely change with the variation in thickness of sample after the T-shaped, can avoid like this can not changing the situation of landing because of sample is subjected to longitudinal stretching power attenuation chuck thereupon; (3) pressure spring and pressure are adjusted nut and can be guaranteed the power clamping sample of chuck with appropriateness, prevent in drawing process landing or because of the excessive pinch off sample of holding force.
Description of drawings:
Accompanying drawing 1 is a front view of the present utility model.
Accompanying drawing 2 is perspective view of the present utility model.
Specific embodiments:
The utility model comprises collet body, back chuck and preceding chuck, one end of collet body 2 is the card shape, can be installed on the guide bearing, collet body is provided with chute 3, the chute bottom side is provided with boss 4, boss is provided with hand button 13 and aperture, chuck 5 is inserted in the chute behind the T-shaped shape, and 10 location of the spring pressuring plate by the chute side, be provided with on the fourth beam 16 of chuck one side behind the T-shaped shape with boss on same hand button 8 and aperture, chuck 7 is inserted in these two apertures before the knee, and slidably, be provided with pressure spring 9 before knee on the bar of chuck, an end of pressure spring withstands on the fourth beam of chuck one side behind the T-shaped shape 16, and the other end is adjusted nut 14 location by one.
By interior six circumference chapiter screws 1 collet body 2 is fixed on the guide bearing, the wire rope rope that drives the scrambler rotation is followed closely on 15 in tether, when the extensometer chuck moved, scrambler also can rotate thereupon, realized the purpose to the measurement of sample 6 deformation.Spring pressuring plate 7 usefulness slotted pan head screws 11 location, chuck 7 is fixed on the boss 4 by cover type nut 14 before the knee, adjusts the degree that compresses that chuck after 9 pairs of T-shaped of pressure spring can be regulated in the position of nut 12 by regulating pressure.
Claims (1)
1, a kind of extensometer chuck, comprise collet body, back chuck and preceding chuck, one end of collet body is the card shape, can be installed on the guide bearing, it is characterized in that collet body is provided with chute, the chute bottom side is provided with boss, boss is provided with hand button and aperture, and chuck is inserted in the chute behind the T-shaped shape, and locatees by the spring pressuring plate of chute side, be provided with on the fourth beam of chuck one side behind the T-shaped shape with boss on same hand button and aperture, chuck is inserted in these two apertures before the knee, and slidably, is provided with pressure spring on the bar of chuck before knee, one end of pressure spring withstands on the fourth beam of chuck one side behind the T-shaped shape, and the other end is adjusted the nut location by one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620127663 CN200958989Y (en) | 2006-09-15 | 2006-09-15 | Clamping head for traction meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620127663 CN200958989Y (en) | 2006-09-15 | 2006-09-15 | Clamping head for traction meter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200958989Y true CN200958989Y (en) | 2007-10-10 |
Family
ID=38785871
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620127663 Expired - Lifetime CN200958989Y (en) | 2006-09-15 | 2006-09-15 | Clamping head for traction meter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN200958989Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102323140A (en) * | 2011-08-11 | 2012-01-18 | 西北工业大学 | Sample and clamp for thin walled tube high temperature tensile test |
| CN103196745A (en) * | 2013-04-28 | 2013-07-10 | 天津出入境检验检疫局化矿金属材料检测中心 | A portable extensometer clamping device and using method |
| CN105223070A (en) * | 2014-06-30 | 2016-01-06 | 南京工业大学 | Method and device for dynamic extensometer in mechanically fixed high temperature fatigue test |
| CN106018078A (en) * | 2016-07-21 | 2016-10-12 | 南京工业大学 | Displacement extension clamping device for measuring axial tensile deformation of steel cable at high temperature and using method thereof |
-
2006
- 2006-09-15 CN CN 200620127663 patent/CN200958989Y/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102323140A (en) * | 2011-08-11 | 2012-01-18 | 西北工业大学 | Sample and clamp for thin walled tube high temperature tensile test |
| CN102323140B (en) * | 2011-08-11 | 2014-08-20 | 西北工业大学 | Sample and clamp for thin walled tube high temperature tensile test |
| CN103196745A (en) * | 2013-04-28 | 2013-07-10 | 天津出入境检验检疫局化矿金属材料检测中心 | A portable extensometer clamping device and using method |
| CN103196745B (en) * | 2013-04-28 | 2015-07-15 | 天津出入境检验检疫局化矿金属材料检测中心 | A method of using a portable extensometer clamping device |
| CN105223070A (en) * | 2014-06-30 | 2016-01-06 | 南京工业大学 | Method and device for dynamic extensometer in mechanically fixed high temperature fatigue test |
| CN106018078A (en) * | 2016-07-21 | 2016-10-12 | 南京工业大学 | Displacement extension clamping device for measuring axial tensile deformation of steel cable at high temperature and using method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20071010 |
|
| EXPY | Termination of patent right or utility model |