CN205449665U - Material tensile testing equipment - Google Patents
Material tensile testing equipment Download PDFInfo
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- CN205449665U CN205449665U CN201521130021.1U CN201521130021U CN205449665U CN 205449665 U CN205449665 U CN 205449665U CN 201521130021 U CN201521130021 U CN 201521130021U CN 205449665 U CN205449665 U CN 205449665U
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Abstract
The utility model provides a material tensile testing equipment relates to the testing of materials field. Including being used for the await measuring anchor clamps of sample of centre gripping, anchor clamps include the centre gripping await measuring the sample the clamping part, drive the link assembly of clamping part motion and support link assembly's supporting part, the supporting part includes supporting seat and bracing piece, the top of bracing piece is provided with the chamber that holds that holds the sample tip that awaits measuring, it is equipped with and supplies to await measuring sample male open -top to hold the chamber top, it is provided with and is holding the fastener of intracavity with the sample end fixing that awaits measuring to hold the chamber. Owing to add fastener on original anchor clamps, realized dual clamping structure, make the process of the test be difficult to the condition because of the experimental failure of sample roll -off anchor clamps of awaiting measuring appear, practiced thrift the experimental time, improved experimental efficiency.
Description
Technical field
This utility model relates to testing of materials field, in particular to a kind of equipment testing material stretching.
Background technology
Mechanical stretch test refers to measure the test method of material behavior under bearing axial tensile loads.The data utilizing tension test to obtain may determine that elastic limit of materials, percentage elongation, elastic modelling quantity, proportional limit, area reduction amount, hot strength, yield point, yield strength and other tensile property index.The tension test carried out from high temperature can obtain creep data.The step of metal tensile test can be found in ASTME-8 standard.The method of plastic tensile test sees ASTMD-638 standard, D-2289 standard (high strain-rate) and D-882 standard (fine sheet).ASTMD-2343 standard defines the stretching test method being applicable to glass fibre；ASTMD-897 standard defines the stretching test method being applicable to binding agent；ASTMD-412 standard defines the stretching test method of hard rubber.
In prior art, electronic tension tester is when testing various tensile strength of material, clamping material clamp is only furnished with conventional circular section bar and square-section sheet material fixture, and to soft rubber material, during with conventional fixture clamping, because rubber surface is the most smooth and elongation percentage is the biggest, the biggest clamping force is used during clamping, rubber at clip position makes retaining part rubber draw fewer and fewer as well as the increase of deformation, finally rubber is pulled out chuck clamping position, so conventional fixture can not clamp the elastomeric material with favorable elasticity.
Utility model content
In view of this, this utility model provides a kind of material tensile test apparatus and material tensile test method thereof, to improve the problems referred to above
This utility model provides a kind of material tensile test apparatus, and including the fixture for clamping sample to be tested, described fixture includes clamping the clamping part of sample to be tested, driving the link assembly of clamping part motion, and the supporting part of support link assembly；
Described supporting part includes supporting seat and support bar, the top of described support bar is provided with the receiving chamber accommodating sample to be tested end, described receiving top of chamber is provided with and is available for the open top that sample to be tested inserts, and described receiving chamber is provided with and sample to be tested end is fixed on the clamp device accommodating intracavity；
Being provided with the clamp device of further clamping sample to be tested end in clamping part, that fixture can be made to hold sample to be tested is tighter, and two clamp systems independently are set, can still make sample to be tested proceed test, and need not again test time some clamp system lost efficacy wherein.
Preferably, described clamp device is the more than one suction mouth that sample to be tested is fixed on receiving intracavity by vacuum draw, is provided with the air flue connected with vacuum pump in described support bar, and suction mouth connects with air flue；
Suction mouth can directly adsorb in the surface of sample to be tested end, makes sample to be tested be difficult to from fixture and skids off.
Preferably, the open-topped diameter in described receiving chamber is less than the diameter of bottom, and open-topped diameter is slightly less than the diameter of sample to be tested；
Accommodate the open-topped diametral distance diameter less than bottom in chamber, when open-topped diameter is slightly less than the diameter of sample to be tested, open top is sealed by interference fit by sample to be tested with accommodating chamber, so that accommodating open top and the sample to be tested clamping in chamber, it is possible to so that the adsorption effect of suction mouth is more preferable.
Preferably, described suction mouth is provided with multiple, and partial vacuum suction inlet is fitted with sample to be tested surface completely；
To accommodate chamber due to sample to be tested the most completely and fill full, partial vacuum suction inlet proposes laminating completely with the surface of sample to be tested, for directly adsorbing sample to be tested；Another part suction mouth, for being taken away by the air that receiving intracavity is not filled up part by sample to be tested, makes receiving chamber coordinate tightr with sample to be tested.
Preferably, described clamp device is retaining mechanism；
Described retaining mechanism include for clamping the locking tool of sample to be tested end and promoting the overcoat of locking tool movement, described locking tool to be embedded at receiving cavity wall, and can move along accommodating chamber radial direction, the part that locking has reaches outside receiving cavity wall；Described overcoat is set on support bar, and can move along support bar axial direction；
Sample to be tested inserts after accommodating chamber, overcoat moves up, stretch out the part outside receiving cavity wall with locking tool to coordinate, inwardly promote overall for locking tool, the part making locking have reaches inside receiving cavity wall, contact with sample to be tested and be trapped in sample to be tested surface, thus locking sample to be tested.
Preferably, described locking tool is for be embedded the ball in receiving cavity wall.
Preferably, described locking tool is for be embedded the slide block in receiving cavity wall
Preferably, described receiving intracavity is provided with for detecting the sample to be tested end position sensor at described receiving intracavitary locations, and position sensor is connected with extraneous control platform, and the result detected exports control platform；
Position sensor is positioned at the position of receiving intracavity for detecting sample to be tested, before the test, position sensor can detect whether sample to be tested has been inserted into the predeterminated position, in test accommodating intracavity, and position sensor can detect sample to be tested and the most outwards skid off, if i.e. will be disengaged from fixture；And feed back to control platform by relevant testing result, adjust fixture for controllers.
Preferably, described support bar runs through support seat, and described support seat can move up and down along support bar axial direction；
After sample to be tested being clamped further with clamp device when on-test, if position sensor detects sample to be tested and fixture generation relative motion in test, when having the trend skidding off fixture, clamping part can be unclamped, support seat is moved along support bar axial direction, adjustment clamping part, relative to the position of style to be measured, makes clamping part style to be measured be fixedly clamped again.
Preferably, described support seat and support bar pass through threaded engagement.
A kind of method using described material tensile test apparatus to carry out material extension test, including
S1: a length of 100cm～120cm, the bar-shaped sample of a diameter of 20mm-40mm, and the burr on bar-shaped sample surface of polishing are cut in sample to be tested processing so that it is smooth surface；
S2: with the upper end of the upper holder strip sample to be tested of material tensile test apparatus, clamp the bottom of strip sample to be tested with the lower clamp of material tensile test apparatus；
S3: sample to be tested is carried out axial tension test.
During tension test, when the upper end of strip sample to be tested goes up fixture generation relative displacement relatively, or the bottom of strip sample to be tested relative to lower clamp generation relative displacement time, clamp device clamping strip sample to be tested.
This utility model is achieved in that sets up clamp device on original fixture, is fixed sample to be tested further by clamp device, so that sample to be tested is difficult in test from fixture from skidding off.Additionally, due to there has been dual clamp structure, when a clamp structure will lose efficacy, another clamp structure remains to play a role, such that it is able to adjust the clamp structure that will lose efficacy in time so that it is again be clamped fixing to sample to be tested.
The beneficial effects of the utility model are: owing to being additionally arranged clamp device on original fixture, achieve dual clamp structure, make process of the test be not easy appearance and skid off the situation of fixture and test failure because of sample to be tested, saved the time of test, improve the efficiency of test.
Accompanying drawing explanation
In order to be illustrated more clearly that the technical scheme of this utility model embodiment, the accompanying drawing used required in embodiment will be briefly described below, it is to be understood that, the following drawings illustrate only some embodiment of the present utility model, therefore the restriction to scope it is not construed as, for those of ordinary skill in the art, on the premise of not paying creative work, it is also possible to obtain other relevant accompanying drawings according to these accompanying drawings.
The structural representation of the material tensile test apparatus that Fig. 1 provides for this utility model embodiment；
The structural representation of the fixture of the material tensile test apparatus that Fig. 2 provides for this utility model embodiment；
Another structural representation of the fixture of the material tensile test apparatus that Fig. 3 provides for this utility model embodiment；
The cross-sectional view of the fixture of the material tensile test apparatus that Fig. 4 provides for this utility model embodiment；
Another cross-sectional view of the fixture of the material tensile test apparatus that Fig. 5 provides for this utility model embodiment；
The another cross-sectional view of the fixture of the material tensile test apparatus that Fig. 6 provides for this utility model embodiment；
Another cross-sectional view of the fixture of the material tensile test apparatus that Fig. 7 provides for this utility model embodiment；
The cross-sectional view of the clamp device of the fixture of the material tensile test apparatus that Fig. 8 provides for this utility model embodiment；
Another cross-sectional view of the clamp device of the fixture of the material tensile test apparatus that Fig. 9 provides for this utility model embodiment；
The another cross-sectional view of the clamp device of the fixture of the material tensile test apparatus that Figure 10 provides for this utility model embodiment；
The plan structure schematic diagram of the transverse link of the material tensile test apparatus that Figure 11 provides for this utility model embodiment.
Reference collects:
Clamping part 110, link assembly 120, transverse link 121, the first left connecting rod 122, second left connecting rod 123, the first right connecting rod 124, the second right connecting rod 125, support seat 131, support bar 132, limiting section 141, spring 142, accommodate chamber 210, open top 211, suction mouth 220, air flue 230, ball 311, slide block 312, overcoat 320, position sensor 400, sample to be tested 500.
Detailed description of the invention
In prior art, electronic tension tester is when testing various tensile strength of material, clamping material clamp is only furnished with conventional circular section bar and square-section sheet material fixture, and to soft rubber material, during with conventional fixture clamping, because rubber surface is the most smooth and elongation percentage is the biggest, the biggest clamping force is used during clamping, rubber at clip position makes retaining part rubber draw fewer and fewer as well as the increase of deformation, finally rubber is pulled out chuck clamping position, so conventional fixture can not clamp the elastomeric material with favorable elasticity.
In view of this, this utility model provides a kind of material tensile test apparatus and material tensile test method thereof, to improve the problems referred to above.
For making the purpose of this utility model embodiment, technical scheme and advantage clearer, below in conjunction with the accompanying drawing in this utility model embodiment, technical scheme in this utility model embodiment is clearly and completely described, obviously, described embodiment is a part of embodiment of this utility model rather than whole embodiments.Generally can with various different configurations arrange and design with the assembly of this utility model embodiment that illustrate described in accompanying drawing herein.Therefore, the detailed description to the embodiment of the present utility model provided in the accompanying drawings is not intended to limit claimed scope of the present utility model below, but is merely representative of selected embodiment of the present utility model.Based on the embodiment in this utility model, the every other embodiment that those of ordinary skill in the art are obtained under not making creative work premise, broadly fall into the scope of this utility model protection
First embodiment, as shown in Figure 1, Figure 2, shown in Fig. 4, Figure 11, this utility model provides a kind of material tensile test apparatus:
Equipment includes frame, guide rod and the fixture being arranged on frame or guide rod.Fixture includes clamping the clamping part 110 of sample to be tested 500, driving the link assembly 120 of clamping part 110 motion, and the supporting part of support link assembly 120, and supporting part includes supporting seat 131 and support bar 132,；
Clamping part 110 includes that left hold assembly and right hold assembly, left hold assembly and right hold assembly connect with link assembly 120 respectively.
Link assembly 120 includes transverse link 121, the first left connecting rod 122, the second left connecting rod 123, the first right connecting rod 124, the second right connecting rod 125.First left connecting rod 122 upper end is rotationally connected with left holder, and in the middle part of the first left connecting rod 122, the left part with transverse link 121 is rotationally connected, and the bottom of the first left connecting rod 122 is rotationally connected with the left part of the second left connecting rod 123.First right connecting rod 124 upper end is rotationally connected with right holder, and in the middle part of the first right connecting rod 124, the right part with transverse link 121 is rotationally connected, and the bottom of the first right connecting rod 124 is rotationally connected with the right part of the second right connecting rod 125；The right part of the second left connecting rod 123 and the left part of the second right connecting rod 125 are rotationally connected, and junction is connected with supporting seat 131 by bearing pin.
Support bar runs through support seat, supports seat 131 and is set in outside support bar 132, and is threaded connection.Spring 142 is set in outside support bar 132, and is positioned at above support seat, the lower end of spring 142 and the top contact supporting seat 131.In transverse link 121, middle part is provided with and limits the limiting section 141 that spring 142 moves, and is provided with and keeps away a hole 143 for what sample to be tested passed through in the middle part of limiting section.The top of spring 142 contacts with limiting section 141.
The top of support bar 132 is provided with the receiving chamber accommodating sample to be tested 500 end, accommodates top, chamber 210 and is provided with the open top 211 being available for sample to be tested 500 insertion, accommodates chamber and is provided with the clamp device that sample to be tested end is fixed on receiving intracavity.
Clamp device is, by vacuum draw, sample to be tested 500 is fixed on the suction mouth 220 accommodated in chamber 210, is provided with the air flue 230 connected with vacuum pump in support bar 132, and suction mouth 220 connects with air flue 230；Vacuum pump can be external vacuum pump, it is also possible to be the vacuum pump that carries of this test equipment.
When test prepares, the first left connecting rod and the first right connecting rod are down promoted, first left connecting rod and the first right connecting rod drive transverse link pressuring spring, make the spring contraction being arranged on transverse link and supporting between seat, so that left holder opens with right holder, then sample to be tested is inserted and accommodate in chamber 210.Then unclamping the first left connecting rod and the first right connecting rod, spring promotes transverse link to move upward, thus drives the first left connecting rod and the first right connecting rod to reset, so that left holder and right holder close up and clamp sample to be tested.Then open vacuum pump, make suction mouth directly adsorb in the surface of sample to be tested end, make sample to be tested be difficult to from fixture and skid off.
Second embodiment, as shown in Figure 1, Figure 2, shown in Fig. 5, Fig. 6, Figure 11:
The diameter of the open top 211 accommodating chamber 210 is less than the diameter of bottom, and the diameter of the diameter of open top 211 slightly sample to be tested 500；
When the open-topped diametral distance diameter less than bottom accommodating chamber, when open-topped diameter is less than the diameter being slightly less than sample to be tested, open top is sealed by interference fit by sample to be tested with accommodating chamber, so that accommodating open top and the sample to be tested clamping in chamber, it is possible to so that the adsorption effect of suction mouth is more preferable.
Remaining same first embodiment of not described part.
3rd embodiment, as shown in Figure 1, Figure 2, shown in Fig. 7, Figure 11, suction mouth 220 is provided with multiple, and partial vacuum suction inlet is fitted with sample to be tested 500 surface completely, and another part suction mouth is contacting with sample to be tested 500；
To accommodate chamber due to sample to be tested the most completely and fill full, partial vacuum suction inlet proposes laminating completely with the surface of sample to be tested, for directly adsorbing sample to be tested；Another part suction mouth, for being taken away by the air that receiving intracavity is not filled up part by sample to be tested, makes receiving chamber coordinate tightr with sample to be tested.
Diameter in the open top 211 accommodating chamber 210 is less than the diameter of bottom, and the diameter of open top 211 is slightly less than the diameter of sample to be tested 500；And suction mouth 220 is provided with multiple, partial vacuum suction inlet is fitted with sample to be tested 500 surface completely, when another part suction mouth contacts with sample to be tested 500；If finding detected materials and fixture generation relative displacement in process of the test, but when detected materials does not skids off the most completely from receiving chamber, the suction of vacuum pump can be increased, unclamp left holder and right holder again, and support seat is moved up along support bar axial direction, after seat to be supported is moved closer to the position of sample to be tested, again clamp sample to be tested with left holder and right holder.
Remaining not described part is with the second embodiment.
4th embodiment, as shown in Fig. 1, Fig. 3, Fig. 8, Figure 11:
Clamp device can also be retaining mechanism；
Retaining mechanism includes for clamping the locking tool of sample to be tested end and promoting the overcoat 320 of locking tool movement, locking tool to be embedded at the body wall of receiving chamber 210, and can move along accommodating chamber 210 radial direction；Overcoat 320 is set on support bar 132, and can move along support bar axial direction；
Locking tool is accommodating the intraparietal ball in chamber 210 311 for being embedded.
Sample to be tested inserts after accommodating chamber, and the overcoat being arranged on support bar promotes the ball being arranged in receiving cavity wall along receiving chamber radial direction to accommodating chamber central motion, so that ball is absorbed in sample to be tested surface, is locked by sample to be tested.
Remaining not described part is with embodiment one.
5th embodiment, as shown in Fig. 1, Fig. 3, Fig. 9, Figure 11:
The diameter of the open top 211 accommodating chamber 210 is less than the diameter of bottom, and the diameter of open top 211 is slightly less than the diameter of sample to be tested 500；
Suction mouth 220 is provided with multiple, and partial vacuum suction inlet is fitted with sample to be tested 500 surface completely, and another part suction mouth contacts with sample to be tested 500；
Locking tool is accommodating the intraparietal slide block in chamber 210 312 for being embedded.
Sample to be tested inserts after accommodating chamber, and the overcoat being arranged on support bar promotes the slide block being arranged in receiving cavity wall along receiving chamber radial direction to accommodating chamber central motion, so that a part for slide block is absorbed in sample to be tested surface, is locked by sample to be tested.
When finding detected materials and fixture generation relative displacement in process of the test, but when detected materials does not skids off the most completely from receiving chamber, the suction of vacuum pump can be increased, unclamp left holder and right holder again, and support seat is moved up along support bar axial direction, after seat to be supported is moved closer to the position of sample to be tested, again clamp sample to be tested with left holder and right holder.
Remaining not described part is with the 4th embodiment.
Sixth embodiment, as shown in Fig. 1, Fig. 3, Figure 10, Figure 11:
Locking tool is accommodating the intraparietal slide block in chamber 210 312 for being embedded, and suction mouth 220 is fitted in sample to be tested 500 end completely.
Remaining not described part is with the 4th embodiment.
7th embodiment, as shown in Fig. 1, Fig. 3, Fig. 9, Figure 11:
Being provided with for detecting the sample to be tested end position sensor 400 at described receiving intracavitary locations in accommodating chamber 210, position sensor is connected with extraneous control platform, and the result detected exports control platform；
Position sensor is positioned at the position of receiving intracavity for detecting sample to be tested.Whether detected materials is completely inserted into the predeterminated position accommodating intracavity in the prior art；Whether opposed jaw has occurred and that slip to sample to be tested, is typically all and relies on the experience of technical staff to judge, it is judged that result is the most accurate.But position sensor is set in fixture, is possible not only to detect whether sample to be tested has been inserted into the predeterminated position of receiving intracavity by position sensor before the test；In test whether can also slide by position sensor detection sample to be tested, the most outwards skidding off, the most i.e. will be disengaged from fixture；And feed back to control platform by relevant testing result, adjust fixture for controllers.
After sample to be tested being clamped further with clamp device when on-test, if position sensor detects sample to be tested and fixture generation relative motion in test, when having the trend skidding off fixture, clamping part can be unclamped, support seat is moved along support bar axial direction, adjustment clamping part, relative to the position of style to be measured, makes clamping part style to be measured be fixedly clamped again.
Remaining not described part is with embodiment five.
A kind of method using above-mentioned material tensile test apparatus to carry out material extension test employing, including
S1: a length of 100cm～120cm, the bar-shaped sample of a diameter of 20mm-40mm, and the burr on bar-shaped sample surface of polishing are cut in sample to be tested processing so that it is smooth surface；
S2: with the upper end of the upper holder strip sample to be tested of material tensile test apparatus, clamp the bottom of strip sample to be tested with the lower clamp of material tensile test apparatus；
S3: sample to be tested is carried out axial tension test.
During tension test, when the upper end of strip sample to be tested goes up fixture generation relative displacement relatively, or the bottom of strip sample to be tested relative to lower clamp generation relative displacement time, clamp device clamping strip sample to be tested.
The material of sample to be tested is quality of rubber materials.
Unless specifically stated otherwise, the parts illustrated the most in these embodiments are not limiting as scope of the present utility model with relative step, numerical expression and the numerical value of step
The foregoing is only preferred embodiment of the present utility model, be not limited to this utility model, for a person skilled in the art, this utility model can have various modifications and variations.All within spirit of the present utility model and principle, any modification, equivalent substitution and improvement etc. made, within should be included in protection domain of the present utility model.
Claims (10)
1. a material tensile test apparatus, it is characterised in that include the fixture for clamping sample to be tested, described fixture includes clamping the clamping part of sample to be tested, driving the link assembly of clamping part motion, and the supporting part of support link assembly；
Described supporting part includes supporting seat and support bar, the top of described support bar is provided with the receiving chamber accommodating sample to be tested end, described receiving top of chamber is provided with and is available for the open top that sample to be tested inserts, and described receiving chamber is provided with and sample to be tested end is fixed on the clamp device accommodating intracavity.
Material tensile test apparatus the most according to claim 1, it is characterized in that, described clamp device is the more than one suction mouth that sample to be tested is fixed on receiving intracavity by vacuum draw, is provided with the air flue connected with vacuum pump in described support bar, and suction mouth connects with air flue.
Material tensile test apparatus the most according to claim 2, it is characterised in that described open-topped diameter is less than the diameter of bottom, and open-topped diameter is slightly less than the diameter of sample to be tested.
Material tensile test apparatus the most according to claim 2, it is characterised in that described suction mouth is provided with multiple, partial vacuum suction inlet is fitted with sample to be tested surface completely.
5. according to the material tensile test apparatus described in any one of Claims 1-4, it is characterised in that described clamp device is retaining mechanism；
Described retaining mechanism includes for clamping the locking tool of sample to be tested end and promoting the overcoat of locking tool movement, described locking tool to be embedded at receiving cavity wall, and can move along accommodating chamber radial direction；Described overcoat is set on support bar, and can move along support bar axial direction.
Material tensile test apparatus the most according to claim 5, it is characterised in that described locking has for be embedded the ball in receiving cavity wall.
Material tensile test apparatus the most according to claim 5, it is characterised in that described locking has for be embedded the slide block in receiving cavity wall.
Material tensile test apparatus the most according to claim 1, it is characterised in that described receiving intracavity is provided with for detecting the sample to be tested end position sensor at described receiving intracavitary locations.
Material tensile test apparatus the most according to claim 1, it is characterised in that described support bar runs through support seat, described support seat can move up and down along support bar axial direction.
Material tensile test apparatus the most according to claim 9, it is characterised in that described support seat and support bar pass through threaded engagement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521130021.1U CN205449665U (en) | 2015-12-30 | 2015-12-30 | Material tensile testing equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521130021.1U CN205449665U (en) | 2015-12-30 | 2015-12-30 | Material tensile testing equipment |
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| Publication Number | Publication Date |
|---|---|
| CN205449665U true CN205449665U (en) | 2016-08-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201521130021.1U Expired - Fee Related CN205449665U (en) | 2015-12-30 | 2015-12-30 | Material tensile testing equipment |
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| CN (1) | CN205449665U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105424482A (en) * | 2015-12-30 | 2016-03-23 | 重庆精榜高分子材料有限公司 | Material tensile test equipment and material tensile test method thereof |
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2015
- 2015-12-30 CN CN201521130021.1U patent/CN205449665U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105424482A (en) * | 2015-12-30 | 2016-03-23 | 重庆精榜高分子材料有限公司 | Material tensile test equipment and material tensile test method thereof |
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| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160810 Termination date: 20161230 |