CN101936850B - Fixture for shearing test - Google Patents
Fixture for shearing test Download PDFInfo
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- CN101936850B CN101936850B CN 201010249140 CN201010249140A CN101936850B CN 101936850 B CN101936850 B CN 101936850B CN 201010249140 CN201010249140 CN 201010249140 CN 201010249140 A CN201010249140 A CN 201010249140A CN 101936850 B CN101936850 B CN 101936850B
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- chuck
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- adjustable horizontal
- anchor clamps
- shear test
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- 238000012360 testing method Methods 0.000 title claims abstract description 58
- 238000010008 shearing Methods 0.000 title abstract description 15
- 230000007246 mechanism Effects 0.000 claims abstract description 30
- 230000008878 coupling Effects 0.000 claims description 12
- 238000010168 coupling process Methods 0.000 claims description 12
- 238000005859 coupling reaction Methods 0.000 claims description 12
- 230000010354 integration Effects 0.000 claims description 3
- 238000001514 detection method Methods 0.000 abstract description 7
- 230000008901 benefit Effects 0.000 abstract description 2
- 230000002708 enhancing effect Effects 0.000 abstract 1
- 238000005452 bending Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
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Abstract
The invention relates to the technical field of test equipment, relating to a fixture for a shearing test. The fixture solves the technical problems of low accuracy, narrow application scope and the like in the prior art. The fixture comprises a base, the base is provided with two chucks, i.e. a first chuck and a second chuck, and a space for accommodating a sample is formed between the first chuck and the second chuck. The first chuck is provided with a friction force interference resistant mechanism which can prevent the interference of the friction force during the test. Adjustable horizontal lateral positioning mechanisms capable of adjusting the space are respectively arranged between each chuck and the base, and adjustable horizontal longitudinal positioning mechanisms are respectively arranged between each chuck and the base. The fixture has the following advantages: 1, effectively solving the interference of the friction force to the detection of the shearing force during the test and enhancing the detection accuracy; 2, ensuring the perpendicularity of the sample, thereby solving the interference to the detection of the shearing force caused by the un-verticality in the test; and 3, being capable of being matched with various testing machines, thereby enlarging the application range of the fixture.
Description
Technical field
The invention belongs to the testing equipment technical field, relate to anchor clamps, especially relate to a kind of shear test anchor clamps.
Background technology
Shear test can be measured the drag performance of material under the shearing force effect, is one of fundamental test method of mechanical property of materials test, is mainly used in testing the part and the material that bear shear-type load.Though it is all multifactor whether shear test successfully depends on, anchor clamps wherein are substantially the most also to be one of most important equipment.In the process of test, along with the shearing force of testing constantly increases, the acting force that anchor clamps are subjected to is also increasing, occurs more problem easily at present; 1, originally after long-time use, loosening or position skew causes shearing force vertically to act on the material of test to anchor clamps easily, influences test result; 2, becoming flexible also appears in material usually easily, has influenced test result equally; 3, material is under the effect that is subjected to shearing force, and the frequent relative motion of material and anchor clamps or relative movement trend have strengthened friction force or stiction, thereby have disturbed shearing force, influence test result; 4, existing anchor clamps often all are specific anchor clamps on each testing table, and suitable field is narrower.
In view of the existence of more above-mentioned problems, people have designed the anchor clamps on the shear test platform miscellaneous by improving structure.For example, Chinese patent literature discloses a kind of shear test anchor clamps [Chinese patent application numbers 200920003786.7; Publication number CN201442127U], it comprises: go up clamp body, lower clamp seat and supporting seat; The lower clamp seat is arranged on the described supporting seat, is useful on the back-shaped chamber that holds sample in the lower clamp seat; The upper end of lower clamp seat is provided with clamping screw and wedge shape jaw, promotes described wedge shape jaw and closely contacts with sample in the back-shaped chamber by rotating described clamping screw.The feature of GB4934 and for example---the shear test anchor clamps mentioned in 85 " the strain control formula direct shear apparatuses ".Though above-mentioned two technical schemes all can prevent sample extremely non-test place slippage in loading, loosening, inclination, thereby improve the reliability of shear test process and result's accuracy.But the problem of anchor clamps self; Still exist as situations such as loosening or position are offset easily, friction force is big, suitable application area is narrower.
Summary of the invention
The objective of the invention is at the problems referred to above, provide a kind of friction force of can effectively eliminating to disturb, guarantee the sample verticality, accuracy of detection height, stable and reliable operation shear test anchor clamps.
For achieving the above object, the present invention has adopted following technical proposal: this shear test anchor clamps, comprise base, be provided with two chucks at base, i.e. first chuck and second chuck, between first chuck and second chuck, form the space of putting into for sample, it is characterized in that, described first chuck is provided with the antifriction power that can prevent the friction force interference when test and disturbs mechanism, be respectively equipped with the adjustable horizontal cross detent mechanism that to regulate described space size between each described chuck and the base, also be respectively equipped with adjustable horizontal vertical location device between each described chuck and the base.
Disturb mechanism owing to be provided with antifriction power, efficiently solve that friction force improves detection accuracy to detecting the interference of shearing force in the test.Owing to be provided with adjustable horizontal cross detent mechanism and adjustable horizontal vertical location device, therefore can guarantee the verticality of sample, thereby solve the pressure that produces because of out of plumb in the test, pulling force, bending force etc. to detecting the interference of shearing force.
In above-mentioned shear test anchor clamps, described antifriction power disturbs mechanism to comprise at least two group bearing pack that are arranged on first chuck, every group of bearing pack comprises the bearing of the identical and horizontal setting of some structures respectively, and a side of sample contacts with bearing pack when sample is clamped, and the another side contacts with second chuck.
In above-mentioned shear test anchor clamps, described chuck all is the L type that is made into integration by transverse part and vertical part, and the transverse part of two chucks links to each other with base respectively, and vertical part mutually opposed and first chuck, the vertical part of two chucks is higher than the vertical part of second chuck.
In above-mentioned shear test anchor clamps, described bearing pack has two groups, and wherein one group of bearing pack is positioned at the top of the first chuck vertical part, and another group is positioned at the below of above-mentioned bearing pack and mutually opposed with the second chuck vertical part.
In above-mentioned shear test anchor clamps, described adjustable horizontal cross detent mechanism is positioned at a side of adjustable horizontal vertical location device.
In above-mentioned shear test anchor clamps, described adjustable horizontal cross detent mechanism comprises out the bar-shaped trough and at least one dog screw that is located in the bar-shaped trough in chuck and horizontal expansion, and described dog screw is connected with whorl of base and chuck can be pressed on the base.
In above-mentioned shear test anchor clamps, described adjustable horizontal vertical location device comprises out that in the last groove of chuck bottom and horizontal expansion, described going up in the groove is inserted with some register pins, and described register pin contacts with base.
In above-mentioned shear test anchor clamps, described adjustable horizontal vertical location device also comprises out the following groove in base and horizontal expansion, described down groove and last groove is interlocked and descending between groove and the last groove be inserted with some described register pins.
In above-mentioned shear test anchor clamps, adjustable horizontal cross detent mechanism between described first chuck and the base and the adjustable horizontal cross detent mechanism between second chuck and the base are located along the same line in horizontal cross, and the adjustable horizontal vertical location device between described first chuck and the base and the adjustable horizontal vertical location device between second chuck and the base shift to install in horizontal cross.
In above-mentioned shear test anchor clamps, coupling bolt is fixedly arranged at the bottom of described base, is provided with the attaching nut in the coupling bolt outer race.
In above-mentioned shear test anchor clamps, described bearing pack comprises the central shaft that a level vertically arranges, and is arranged with some above-mentioned bearings at central shaft.
Compared with prior art, the advantage of this shear test anchor clamps is: 1, reasonable in design, simple in structure, easy operating uses.2, disturb mechanism owing to be provided with antifriction power, efficiently solve that friction force improves detection accuracy to detecting the interference of shearing force in the test.3, owing to be provided with adjustable horizontal cross detent mechanism and adjustable horizontal vertical location device, therefore the verticality of sample be can guarantee, thereby the pressure that produces because of out of plumb in the test, pulling force, bending force etc. solved to detecting the interference of shearing force.4, owing to be provided with coupling bolt and attaching nut, can use with the testing machine coupling of multiple model, make its scope of application more extensive.
Description of drawings
Fig. 1 is main TV structure synoptic diagram provided by the invention.
Fig. 2 is plan structure synoptic diagram provided by the invention.
Among the figure, base 1, first chuck 2, second chuck 3, space 4, bearing pack 5, bearing 51, central shaft 52, bar-shaped trough 6, dog screw 7, time groove 8, last groove 9, register pin 10, coupling bolt 11, attaching nut 12.
Embodiment
As illustrated in fig. 1 and 2, this shear test anchor clamps comprise base 1, are provided with two chucks at base 1, i.e. first chuck 2 and second chuck 3.Between first chuck 2 and second chuck 3, form the space of putting into for sample 4.First chuck 2 is provided with the antifriction power that can prevent the friction force interference when test and disturbs mechanism, be respectively equipped with the adjustable horizontal cross detent mechanism that to regulate described space 4 sizes between each chuck and the base 1, also be respectively equipped with adjustable horizontal vertical location device between each chuck and the base 1.Adjustable horizontal cross detent mechanism is positioned at a side of adjustable horizontal vertical location device.Adjustable horizontal cross detent mechanism between first chuck 2 and the base 1 and the adjustable horizontal cross detent mechanism between second chuck 3 and the base 1 are located along the same line in horizontal cross.Adjustable horizontal vertical location device between adjustable horizontal vertical location device between first chuck 2 and the base 1 and second chuck 3 and the base 1 shifts to install in horizontal cross.Coupling bolt 11 is fixedly arranged at the bottom of base 1, is provided with attaching nut 12 in coupling bolt 11 outer race.
Disturb mechanism owing to be provided with antifriction power, efficiently solve that friction force improves detection accuracy to detecting the interference of shearing force in the test.Owing to be provided with adjustable horizontal cross detent mechanism and adjustable horizontal vertical location device, therefore can guarantee the verticality of sample, thereby solve the pressure that produces because of out of plumb in the test, pulling force, bending force etc. to detecting the interference of shearing force.Owing to be provided with coupling bolt 11 and attaching nut 12, can use with the testing machine coupling of multiple model, make its scope of application more extensive.
Chuck all is the L type that is made into integration by transverse part and vertical part, and the transverse part of two chucks links to each other with base 1 respectively, and vertical part mutually opposed and first chuck 2, the vertical part of two chucks is higher than the vertical part of second chuck 3.Bearing pack 5 has two groups, and wherein one group of bearing pack 5 is positioned at the top of first chuck, 2 vertical parts, and another group is positioned at the below of above-mentioned bearing pack 5 and mutually opposed with second chuck, 3 vertical parts.Bearing pack 5 comprises the central shaft 52 that a level vertically arranges, and is arranged with some above-mentioned bearings 51 at central shaft 52.
Antifriction power disturbs mechanism to comprise at least two group bearing pack 5 that are arranged on first chuck 2, every group of bearing pack 5 comprises the bearing 51 of the identical and horizontal setting of some structures respectively, and a side of sample contacts with bearing pack 5 when sample is clamped, and the another side contacts with second chuck 3.
Adjustable horizontal cross detent mechanism comprises out the bar-shaped trough 6 and at least one dog screw 7 that is located in the bar-shaped trough 6 in chuck and horizontal expansion, and dog screw 7 is threaded with base 1 and chuck can be pressed on the base 1.More particularly, the bar-shaped trough 6 here is opened in the transverse part of chuck.
Adjustable horizontal vertical location device comprises out that in the last groove 9 of chuck bottom and horizontal expansion be inserted with some register pins 10 in the last groove 9, register pin 10 contacts with base 1.In order to make horizontal longitudinal register more reliable, adjustable horizontal vertical location device comprises out in the following groove 8 of base 1 and horizontal expansion and opens in the last groove 9 of chuck bottom and horizontal expansion that following groove 8 and last groove 9 are interlocked and are being inserted with some register pins 10 between groove 8 and the last groove 9 down.The quantity of register pin 10 is decided according to the aperture in space 4.
Specific embodiment described herein only is that the present invention's spirit is illustrated.Those skilled in the art can make various modifications or replenish or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present invention or surmount the defined scope of appended claims.
Although this paper has used base 1, first chuck 2, second chuck 3, space 4, bearing pack 5, bearing 51, central shaft 52, bar-shaped trough 6, dog screw 7, following groove 8, gone up terms such as groove 9, register pin 10, coupling bolt 11, attaching nut 12 morely, do not get rid of the possibility of using other term.Using these terms only is in order to describe and explain essence of the present invention more easily; They are construed to any additional restriction all is contrary with spirit of the present invention.
Claims (6)
1. shear test anchor clamps, comprise base (1), be provided with two chucks at base (1), i.e. first chuck (2) and second chuck (3), between first chuck (2) and second chuck (3), form the space of putting into for sample (4), it is characterized in that, described first chuck (2) is provided with the antifriction power that can prevent the friction force interference when test and disturbs mechanism, be respectively equipped with the adjustable horizontal cross detent mechanism that to regulate described space (4) size between each described chuck and the base (1), also be respectively equipped with adjustable horizontal vertical location device between each described chuck and the base (1);
Described antifriction power disturbs mechanism to comprise at least two group bearing pack (5) that are arranged on first chuck (2), every group of bearing pack (5) comprises the bearing (51) of the identical and horizontal setting of some structures respectively, and a side of sample contacts with bearing pack (5) when sample is clamped, and the another side contacts with second chuck (3);
Described adjustable horizontal cross detent mechanism comprises out in the bar-shaped trough (6) of chuck and horizontal expansion and is located at least one dog screw (7) in the bar-shaped trough (6) that described dog screw (7) is threaded with base (1) and chuck can be pressed on the base (1);
Described adjustable horizontal vertical location device comprises out that in the last groove (9) of chuck bottom and horizontal expansion, described going up in the groove (9) is inserted with some register pins (10), and described register pin (10) contacts with base (1).
2. shear test anchor clamps according to claim 1, it is characterized in that, described chuck all is the L type that is made into integration by transverse part and vertical part, the transverse part of two chucks links to each other with base (1) respectively, and vertical part mutually opposed and first chuck (2), the vertical part of two chucks is higher than the vertical part of second chuck (3).
3. shear test anchor clamps according to claim 2, it is characterized in that, described bearing pack (5) has two groups, and wherein one group of bearing pack (5) is positioned at the top of first chuck (2) vertical part, and another group is positioned at the below of above-mentioned bearing pack (5) and mutually opposed with second chuck (3) vertical part.
4. according to claim 1 or 2 or 3 described shear test anchor clamps, it is characterized in that described adjustable horizontal cross detent mechanism is positioned at a side of adjustable horizontal vertical location device.
5. according to claim 1 or 2 or 3 described shear test anchor clamps, it is characterized in that, described adjustable horizontal vertical location device also comprises out the following groove (8) in base (1) and horizontal expansion, described down groove (8) and last groove (9) is interlocked and descending between groove (8) and the last groove (9) be inserted with some described register pins (10).
6. shear test anchor clamps according to claim 4, it is characterized in that, adjustable horizontal cross detent mechanism between adjustable horizontal cross detent mechanism between described first chuck (2) and the base (1) and second chuck (3) and the base (1) is located along the same line in horizontal cross, and the adjustable horizontal vertical location device between the adjustable horizontal vertical location device between described first chuck (2) and the base (1) and second chuck (3) and the base (1) shifts to install in horizontal cross.
7. shear test anchor clamps according to claim 4 is characterized in that, coupling bolt (11) is fixedly arranged at the bottom of described base (1), are provided with attaching nut (12) in coupling bolt (11) outer race.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010249140 CN101936850B (en) | 2010-08-10 | 2010-08-10 | Fixture for shearing test |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010249140 CN101936850B (en) | 2010-08-10 | 2010-08-10 | Fixture for shearing test |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101936850A CN101936850A (en) | 2011-01-05 |
| CN101936850B true CN101936850B (en) | 2013-08-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010249140 Expired - Fee Related CN101936850B (en) | 2010-08-10 | 2010-08-10 | Fixture for shearing test |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101936850B (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102323146B (en) * | 2011-05-29 | 2013-06-12 | 北泰汽车底盘系统(安徽)有限公司 | Shear testing machine for brake shoe |
| CN103033326B (en) * | 2011-09-30 | 2015-07-29 | 中航商用航空发动机有限责任公司 | The installation method of a kind of plate vibration test fixture, this fixture and calibration steps |
| CN104237004B (en) * | 2014-09-19 | 2017-03-15 | 中国建材检验认证集团江苏有限公司 | It is applied to the fixture of compression shear detection |
| CN105806717B (en) * | 2014-12-31 | 2018-11-27 | 上海长园电子材料有限公司 | A kind of dynamic cutting detection device and detection method |
| CN107179238B (en) * | 2017-06-27 | 2023-06-06 | 天津大学 | Shearing test fixture |
| CN108176731B (en) * | 2017-12-27 | 2019-04-30 | 中国航发哈尔滨轴承有限公司 | A kind of fixture pneumatically identified for divergence type bearing retainer |
| CN111751399A (en) * | 2020-07-30 | 2020-10-09 | 西安苏试广博环境可靠性实验室有限公司 | Novel monitoring device for high and low temperature tests of explosive products |
| CN112098203A (en) * | 2020-08-03 | 2020-12-18 | 山东大学 | Fixing device for tensile-shear test of square test piece and test method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2804844Y (en) * | 2005-06-16 | 2006-08-09 | 黄清洁 | Instrument for testing antitorque or anti-bending strength for table-wares,kitchen-tools or knife |
| EP1702708A1 (en) * | 2003-11-24 | 2006-09-20 | Misati, S.L. | Clamping jaw for automated welding installations |
| CN201442127U (en) * | 2009-01-23 | 2010-04-28 | 深圳高品检测设备有限公司 | Shearing fixture |
| CN201773039U (en) * | 2010-08-10 | 2011-03-23 | 常州三阳建设工程检测有限公司 | Shear test clamp |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008111739A (en) * | 2006-10-31 | 2008-05-15 | Oji Paper Co Ltd | Tool for thickness-wise shear test on sheet-like material and thickness-wise shear test machine |
-
2010
- 2010-08-10 CN CN 201010249140 patent/CN101936850B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1702708A1 (en) * | 2003-11-24 | 2006-09-20 | Misati, S.L. | Clamping jaw for automated welding installations |
| CN2804844Y (en) * | 2005-06-16 | 2006-08-09 | 黄清洁 | Instrument for testing antitorque or anti-bending strength for table-wares,kitchen-tools or knife |
| CN201442127U (en) * | 2009-01-23 | 2010-04-28 | 深圳高品检测设备有限公司 | Shearing fixture |
| CN201773039U (en) * | 2010-08-10 | 2011-03-23 | 常州三阳建设工程检测有限公司 | Shear test clamp |
Non-Patent Citations (2)
| Title |
|---|
| JP特开2008-111739A 2008.05.15 |
| 陈之奇等.材料内抗剪强度测定试验夹具的改进.《贵州大学学报（自然科学版）》.2006,第23卷(第3期),329，330. * |
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| CN101936850A (en) | 2011-01-05 |
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Address after: 213000 Jiangsu Province, Changzhou Tianning Lanling Industrial Park No. 6 Fuxing Street Applicant after: Jiangsu Sanyang Construction Engineering Detection Co., Ltd. Address before: 213000 Jiangsu Province, Changzhou Tianning Lanling Industrial Park No. 6 Fuxing Street Applicant before: Changzhou Sanyang Construction Engineering Quality Testing Co., Ltd. |
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Free format text: CORRECT: APPLICANT; FROM: CHANGZHOU SANYANG CONSTRUCTION ENGINEERING INSPECTION CO., LTD. TO: JIANGSU SANYANG CONSTRUCTION ENGINEERING INSPECTION CO., LTD. |
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Granted publication date: 20130821 Termination date: 20190810 |