CN202710402U - Clamp for tensile test specimen chuck and extensometer - Google Patents
Clamp for tensile test specimen chuck and extensometer Download PDFInfo
- Publication number
- CN202710402U CN202710402U CN 201220350171 CN201220350171U CN202710402U CN 202710402 U CN202710402 U CN 202710402U CN 201220350171 CN201220350171 CN 201220350171 CN 201220350171 U CN201220350171 U CN 201220350171U CN 202710402 U CN202710402 U CN 202710402U
- Authority
- CN
- China
- Prior art keywords
- extensometer
- chuck
- anchor clamps
- clamp
- connection block
- 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 - Fee Related
Links
Images
Abstract
The utility model relates to the technical field of tensile test devices, in particular to a clamp for a tensile test specimen and an extensometer, aiming to solve the problems that the chuck is difficult to loosen or even an internal fixing bolt is broken by pulling at the handle position of a stretcher chuck, and displacement is caused easily to influence the accuracy of tensile data. The clamp for the tensile test specimen and the extensometer is characterized in that one end of a test specimen is connected with an upper chuck in a threaded connection manner, the other end of the test specimen is fixed with a lower chuck in a threaded connection manner, the lower chuck is positioned in a connecting seta, two ends of the test specimen are connected with the extensometer through an extension clamp which is provided with a crank arm connected with a polar pin of the extensometer, and a locking handle is connected with the crank arm and is provided with a locking ring. The clamp is good in locking effect and difficult for displacement, so that the accuracy of tensile data is guaranteed and the working efficiency is high.
Description
Technical field
The utility model relates to the tensile test apparatus technical field, relates in particular to a kind of tensile sample chuck and extensometer anchor clamps.
Background technology
In the larger tensile sample device of vertical model, it is higher that the upper handle position is liftoff, and the people of normal height is can't the direct control set lever, must just can finish by auxiliary implement clamping; And this equipment chuck also is not easy to unclamp with boosting-rod after clamping and breaking, even the inner set bolt of anchor clamps occurs by tensile phenomenon, not only the running time long, inefficiency also needs the operation of ascending a height, and is extremely inconvenient; Draw in addition and rise the parallel part that meter will be fixed on tensile sample, the configuration on the existing apparatus operates loaded down with trivial detailsly, also easily produces displacement, directly affects the degree of accuracy of stretching data.Jig Design in the tension test has various ways, adopt for the accuracy that improves test findings such as patent announcement and number be the design of a CN101608988Y uni-directional stretching test clamp for warm shaping of metal plate, these anchor clamps are comprised of displacement extension, tensile test specimen location clamping part, testing machine coupling part, the tensile test specimen gauge length displacement of different softening degrees under the different temperatures can be drawn heating furnace and measure outward.And for example a kind of Video Extensometer of patent announcement CN202188831U is measured double shoulder circular tension test sample strain anchor clamps, base two base transverse slats of welding and a base riser at Video Extensometer, slide rail is connected by screw on the base riser, the slide rail cover is installed on the slide rail, penholder is fastenedly connected by attachment screw and slide rail cover, two holders are installed on the penholder, shifting axle is through in the aperture of two holders, the pen cap is connected with holder by screw, marker pen is installed on the pen cap by gib screw, and what it mainly solved is to carry the problem that making ruler can't carry out to double shoulder circular tension test sample mark with equipment.
Summary of the invention
The purpose of this utility model is to be difficult for the phenomenon of unclamping or causing inner set bolt to break in order to solve drawing machine chuck handle position, chuck, and easily produce displacement, affect the problem of stretching data accuracy, a kind of rational in infrastructure, easy to operate tensile sample chuck and extensometer anchor clamps are provided.
Above-mentioned technical matters of the present utility model is mainly solved by following technical proposals: a kind of tensile sample chuck and extensometer anchor clamps, it is characterized in that an end of sample is threaded connection mode to be connected with upper grip, the other end of sample is threaded connection mode and lower chuck is fixed, and lower chuck is positioned in the Connection Block; The two ends of sample connect extensometer by extension clamp, and described extension clamp is provided with and cranking arm that extensometer utmost point pin is connected, and are connected with set lever with cranking arm, and set lever is provided with clamp ring.In process of the test, the length of sample is stretched, and the extensometer bearing pin in the extensometer guarantees that the length gauge gauge rod measures in the maximum length scope after stretching; By crank arm, set lever, clamp ring be fastened on respectively the sample two ends to upper grip and lower chuck, because set lever has the boosting-rod effect, makes easily operation and the phenomenon of not tight or Song Bukai can not occur of operator in locking with when unclamping.
As preferably, an end of described upper grip cooperates with the universal testing machine draw-bar seat, and an end of Connection Block is provided with the connection clamping bar, and another draw-bar seat of an end and universal testing machine that connects clamping bar cooperates.Upper grip adopts extended type, is convenient to reduce the upper end operation height of testing machine, simultaneously can be in order to the upper grip with conventional length according to the requirement of degree sample.In actual applications, also can Connection Block be connected clamping bar and be made as integrative-structure.
As preferably, described Connection Block is circular tube structure, and Connection Block is shoulder hole with being connected the end endoporus that clamping bar connects, and an end that connects clamping bar is T-shaped termination.Connect T-shaped termination diameter and the Connection Block round tube inside diameter clearance fit of clamping bar and be positioned at body, the reduced diameter section that connects clamping bar passes Connection Block.
As preferably, the round tube inside diameter of described Connection Block and lower chuck external diameter transition fit are fixed between Connection Block and the lower chuck and by the connecting pin of transverse design.Lower chuck is the screw seat of location sample, and after test, when the dismounting difficulty was larger, fech connection pin ratio was easier to, so that dismounting.
As preferably, described cranking arm is L-type, and wherein the outboard end on a limit is provided with the locking ring support, and the inboard is provided with dead axle arc groove, and another of a cranking arm end, limit is provided with the extensometer connecting hole.The external diameter of dead axle arc groove hard-pressed bale sample, the collaborative dead axle arc groove of another of cranking arm inner edge location sample.
As preferably, an end of described set lever is provided with the suitable pin shaft hole of extensometer connecting hole, the aperture of extensometer connecting hole and extensometer bearing pin clearance fit.The extensometer bearing pin must be able to slide in the extensometer connecting hole.
As preferably, also be provided with the through hole that cooperates with clamp ring on the described set lever.Clamp ring is sleeved on the set lever, and during pulling buckle, an end of clamp ring is arranged in the locking ring support, and the other end is locked by variable in distance.
As preferably, an end of described extensometer bearing pin is connected with the length gauge gauge rod of extensometer, and the drift sum of two extensometer bearing pins is greater than the maximum length of sample tensile test.
The beneficial effects of the utility model are: upper and lower chuck clamping and release processing ease, locking effect is good, is difficult for producing displacement after clamping, and guarantees the degree of accuracy of stretching data, the height of greatly increasing work efficiency.
Description of drawings
Fig. 1 is a kind of structural representation of the present utility model.
Fig. 2 is the local structure for amplifying schematic diagram of the M of the utility model Fig. 1.
Fig. 3 is a kind of structural representation of cranking arm of the present utility model.
Fig. 4 is a kind of set lever structural representation of the present utility model.
Among the figure: 1. upper grip, 2. sample, 3. lower chuck, 4. Connection Block, 5. connecting pin 6. connects clamping bar, and 7. extensometer is 8. cranked arm, 81. locking ring supports, 82. dead axle arc grooves.83. extensometer connects, 9. clamp ring, 10. set lever, 11. extensometer bearing pins.
Embodiment
Below by embodiment, and by reference to the accompanying drawings, the technical solution of the utility model is described in further detail.
A kind of tensile sample chuck of the present embodiment and extensometer anchor clamps, referring to Fig. 1, be provided with upper grip 1 and the lower chuck 3 of lengthening, upper grip 1 and lower chuck 2 are respectively equipped with screw vertically, one end of upper grip 1 cooperates with universal testing machine top draw-bar seat, bolt type is made at the two ends of sample 2, and be connected respectively on upper grip 1 and the lower chuck 3.Connect extensometer 7 at the two ends of sample 2 by extension clamp, as shown in Figure 2, extension clamp is provided with extensometer 7 utmost point pin are connected and cranks arm 8,8 is connected with set lever 10 with cranking arm, and clamp ring 9 is housed on the set lever 10.
Wherein, cranking arm 8 is L-type, and as shown in Figure 3, wherein the outboard end on a limit is provided with locking ring support 81, and inboard middle part is provided with dead axle arc groove 82, and 8 another end, limit of cranking arm is provided with extensometer connecting hole 83.One end of set lever 10 is provided with extensometer connecting hole 83 equal-sized pin shaft holes, and while set lever 10 is provided with the through hole with clamp ring 9 clearance fit, as shown in Figure 4, and the aperture of extensometer connecting hole 83 and extensometer bearing pin 11 clearance fit.
Lower chuck 3 is positioned in the Connection Block 4, and Connection Block 4 is circular tube structure, the round tube inside diameter of Connection Block 4 and lower chuck 3 external diameter transition fit, and the through hole that Connection Block 4 bodys are provided with is also established through hole on the lower chuck 3, be used for filling connecting pin 5 in the through hole.Connection Block 4 is shoulder hole with an end endoporus that is connected clamping bar 6 connections, an end that connects clamping bar 6 is T-shaped termination, the T-shaped termination that connects clamping bar 6 is positioned at the pipe of Connection Block 4, and the other end stretches out, and the end that connection clamping bar 6 stretches out cooperates with universal testing machine below draw-bar seat.
Above-described embodiment is to explanation of the present utility model, is not to restriction of the present utility model, any structure after the simple transformation of the present utility model, technique is all belonged to protection domain of the present utility model.
Claims (8)
1. a tensile sample chuck and extensometer anchor clamps, it is characterized in that an end of sample (2) is threaded connection mode to be connected with upper grip (1), the other end of sample (2) is threaded connection mode and lower chuck (3) is fixing, and lower chuck (3) is positioned in the Connection Block (4); The two ends of sample (2) connect extensometer (7) by extension clamp, described extension clamp is provided with crank arm (8) that are connected with extensometer (7) utmost point pin, be connected with set lever (10) with crank arm (8), set lever (10) is provided with clamp ring (9).
2. tensile sample chuck according to claim 1 and extensometer anchor clamps, an end that it is characterized in that described upper grip (1) cooperates with the universal testing machine draw-bar seat, one end of Connection Block (4) is provided with and connects clamping bar (6), and another draw-bar seat of an end and universal testing machine that connects clamping bar (6) cooperates.
3. tensile sample chuck according to claim 1 and 2 and extensometer anchor clamps, it is characterized in that described Connection Block (4) is circular tube structure, Connection Block (4) is shoulder hole with an end endoporus that is connected clamping bar (6) connection, and an end that connects clamping bar (6) is T-shaped termination.
4. tensile sample chuck according to claim 3 and extensometer anchor clamps, the round tube inside diameter and lower chuck (3) the external diameter transition fit that it is characterized in that described Connection Block (4) are fixed between Connection Block (4) and the lower chuck (3) and by the connecting pin (5) of transverse design.
5. tensile sample chuck according to claim 1 and extensometer anchor clamps, it is characterized in that described cranking arm (8) is L-type, wherein the outboard end on a limit is provided with locking ring support (81), the inboard is provided with dead axle arc groove (82), and another end, limit of crank arm (8) is provided with extensometer connecting hole (83).
6. tensile sample chuck according to claim 5 and extensometer anchor clamps, an end that it is characterized in that described set lever (10) is provided with the suitable pin shaft hole of extensometer connecting hole (83), the aperture of extensometer connecting hole (83) and extensometer bearing pin (11) clearance fit.
7. according to claim 1 or 5 or 6 described tensile sample chuck and extensometer anchor clamps, it is characterized in that also being provided with on the described set lever (10) through hole that cooperates with clamp ring (9).
8. tensile sample chuck according to claim 5 and extensometer anchor clamps, an end that it is characterized in that described extensometer bearing pin (11) is connected with the length gauge gauge rod of extensometer, and the drift sum of two extensometer bearing pins (11) is greater than the maximum length of sample (2) tension test.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220350171 CN202710402U (en) | 2012-07-19 | 2012-07-19 | Clamp for tensile test specimen chuck and extensometer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220350171 CN202710402U (en) | 2012-07-19 | 2012-07-19 | Clamp for tensile test specimen chuck and extensometer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202710402U true CN202710402U (en) | 2013-01-30 |
Family
ID=47590693
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220350171 Expired - Fee Related CN202710402U (en) | 2012-07-19 | 2012-07-19 | Clamp for tensile test specimen chuck and extensometer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202710402U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106168472A (en) * | 2016-08-26 | 2016-11-30 | 中国科学院武汉岩土力学研究所 | A kind of cuboid sample lateral displacement measurement apparatus |
| CN108956281A (en) * | 2018-06-04 | 2018-12-07 | 中国航发北京航空材料研究院 | A kind of fixation device of sheet metal drawing by high temperature extensometer |
| CN110553913A (en) * | 2019-09-23 | 2019-12-10 | 巨力索具股份有限公司 | Cold casting material extrusion elasticity modulus test tool |
-
2012
- 2012-07-19 CN CN 201220350171 patent/CN202710402U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106168472A (en) * | 2016-08-26 | 2016-11-30 | 中国科学院武汉岩土力学研究所 | A kind of cuboid sample lateral displacement measurement apparatus |
| CN106168472B (en) * | 2016-08-26 | 2020-02-14 | 中国科学院武汉岩土力学研究所 | Cuboid sample lateral displacement measuring device |
| CN108956281A (en) * | 2018-06-04 | 2018-12-07 | 中国航发北京航空材料研究院 | A kind of fixation device of sheet metal drawing by high temperature extensometer |
| CN108956281B (en) * | 2018-06-04 | 2021-02-09 | 中国航发北京航空材料研究院 | Fixing device of sheet metal high temperature tensile extensometer |
| CN110553913A (en) * | 2019-09-23 | 2019-12-10 | 巨力索具股份有限公司 | Cold casting material extrusion elasticity modulus test tool |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105856309B (en) | A kind of plastic cylinder body three-point positioning mechanism | |
| CN201152840Y (en) | General bolt/nut test clamp | |
| CN207181143U (en) | A kind of bending strength for steel pipe detects fixture | |
| CN202710402U (en) | Clamp for tensile test specimen chuck and extensometer | |
| CN206235511U (en) | A kind of metal material detection clamp clamping device of clamp of replaceable gripping block | |
| CN109855956A (en) | A kind of device and its measurement method detecting wide tensile property of geosynthetics | |
| CN205175840U (en) | Multiplexer utensil bending test machine | |
| CN104374361B (en) | Plate creep extensometer | |
| CN205786133U (en) | Four-point bending test machine | |
| CN203459098U (en) | Height-adjustable combined iron support | |
| CN105945094A (en) | Special manual straightening machine for pipes | |
| CN103644822A (en) | Three-way tube gauge | |
| CN203203503U (en) | White vehicle body hole site detection tool | |
| CN211426082U (en) | Clamping tool for sample strip of tensile testing machine | |
| CN213180419U (en) | Robot temperature measurement sampling device | |
| CN208853521U (en) | A kind of quick position punch ruler | |
| CN212059669U (en) | Iron cap tensile test device | |
| CN208805311U (en) | A kind of lifting column feed screw nut dynamic torque detecting tool | |
| CN206919794U (en) | Normal temperature tensile test bar breaks rear measurement apparatus | |
| CN205450012U (en) | Wind speed test support | |
| CN208937410U (en) | A kind of screw rod clamping positioning mechanism for extension test | |
| CN216433745U (en) | Cashmere blended yarn detection device | |
| CN212135060U (en) | Reading microscope structure with auxiliary device | |
| CN206489006U (en) | Bend pipe tools bending resistance test device | |
| CN204903287U (en) | Fibre reinforced plastic interlaminar shear strength test fixture |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130130 Termination date: 20180719 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |