CN212110907U - Positioning device for tensile test sample clamp - Google Patents
Positioning device for tensile test sample clamp Download PDFInfo
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- CN212110907U CN212110907U CN202020697247.4U CN202020697247U CN212110907U CN 212110907 U CN212110907 U CN 212110907U CN 202020697247 U CN202020697247 U CN 202020697247U CN 212110907 U CN212110907 U CN 212110907U
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- guide rail
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- tensile test
- shaped support
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Abstract
The utility model relates to a positioner especially relates to a positioner of combined material panel tensile test sample anchor clamps. The utility model provides a positioner for tensile test sample anchor clamps, including the U-shaped support, open the centre on U type support both sides has the guide rail spout, U-shaped support inboard is equipped with the location slider between two guide rail spouts, fix a position the slider both ends and pass through the screw fixation on the guide rail spout, be equipped with the scale in the both sides of U-shaped support outside guide rail spout, the tank bottom side end face inboard of U type support is equipped with the fixed plate, U type support both sides opening end inboard is equipped with the mounting plate respectively, two mounting plates are opened there is the screw hole, be equipped with the butterfly screw in the screw hole. The utility model has the advantages of effect: the utility model discloses effectively guarantee the centering degree of sample, guarantee the accuracy of test result, make the experimental success rate improve, make the accuracy of test data improve, reduce repetition test, reduce cost improves labor efficiency.
Description
Technical Field
The utility model relates to a positioner especially relates to a positioner of combined material panel tensile test sample anchor clamps.
Background
The tensile strength is a main mechanical property testing means in the field of composite material testing, composite materials comprise carbon fiber prepreg cloth and glass fiber prepreg cloth laminated plates, the tensile strength is also a test with the highest testing frequency, the test is usually realized by adopting a self-locking wedge-shaped clamping block or a hydraulic chuck according to the file requirements, the centering property of a sample during loading testing is very important, the sample is difficult to be placed at the central position of an upper chuck and a lower chuck in a visual mode due to human factors, the centering deviation of the sample can cause local stress concentration and generate additional bending moment, for a 0-degree sample, the influence of small unbalance loading on the tensile strength is very obvious, and the literature shows that the tensile strength of the 1-degree eccentric loading can be reduced by about 30 percent. For a 90-degree sample, poor centering during test clamping can cause significant influence on the test data result of the sample. Therefore, when the tensile test is carried out, accurate clamping and centering of the test sample are very important for the composite material test. It is desirable to minimize deflection during clamping.
At present, under most of domestic conditions, the centering degree of a sample cannot be ensured by utilizing the original upper and lower chucks of an electronic tensile machine, and the existing defects are as follows: the width of the clamping surface of the wedge blocks of the upper and lower chucks of the tensile machine is 40mm, and the width of the clamping surface of the sample is mostly 12.7 mm-25.4 mm. The width of the upper and lower chuck wedges is obviously greater than the width of the sample, and the center position cannot be accurately determined by naked eyes by adopting the traditional experimental means. If the off-axis load is generated frequently in the using process, the precision of the equipment is damaged, and the coaxiality is deviated. The cost of routine maintenance of the equipment is increased.
Disclosure of Invention
In order to solve the technical problem the utility model provides a positioner for tensile test sample anchor clamps, the purpose is the central point of accurate definite sample puts.
In order to achieve the purpose, the utility model relates to a positioner for tensile test sample anchor clamps, including the U-shaped support, open the centre on U type support both sides has the guide rail spout, U-shaped support inboard is equipped with the location slider between two guide rail spouts, fix a position the slider both ends and pass through the screw fixation on the guide rail spout, be equipped with the scale in the both sides of U-shaped support outside guide rail spout, the tank bottom side end face inboard of U type support is equipped with the fixed plate, U type support both sides opening end inboard is equipped with the mounting plate respectively, two mounting plates are opened there is the screw hole, be equipped with the butterfly screw in the screw hole.
The positioning slide block is in a straight shape.
The length of the guide rail sliding groove is larger than the depth of the U-shaped support.
The width of the fixing plate is larger than that of the fastening plate.
The center of the outer side of the fixing plate is provided with a step positioning pin.
The utility model has the advantages of effect: the utility model discloses effectively guarantee the centering degree of sample, guarantee the accuracy of test result, make the experimental success rate improve, make the accuracy of test data improve, reduce repetition test, reduce cost improves labor efficiency.
The utility model discloses simple structure, convenient to use through the position at location slider location sample place, all can be suitable for the clamping of different width samples.
The utility model discloses a fix the outside at the chuck voussoir, played the spacing function of sample, guaranteed the centering degree of sample, improved the sample clamping and leaned on visual traditional method with the location, improved the accuracy of sample clamping and sample position adjustment greatly.
Drawings
Fig. 1 is a perspective view of the present invention.
Fig. 2 is a front view of the present invention.
Fig. 3 is a side view of the present invention.
Fig. 4 is a bottom view of the present invention.
Fig. 5 is an installation schematic diagram of the present invention.
In the figure: 1. a U-shaped bracket; 2. a guide rail chute; 3. positioning the sliding block; 4. a graduated scale; 5. a fixing plate; 6. a fastening plate; 7. a butterfly screw; 8. a chuck; 9. a sample; 10. step locating pin.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings.
As shown in the figure, a positioner for tensile test sample anchor clamps, including U-shaped support 1, open the centre on 1 both sides of U-shaped support has guide rail spout 2, 1 inboard of U-shaped support is equipped with location slider 3 between two guide rail spout 2, fix a position slider 3 both ends through the screw fixation on guide rail spout 2, be equipped with scale 4 in 1 outside guide rail spout 2's of U-shaped support both sides, the depth of parallelism of location slider can be guaranteed to scale 4, U-shaped support 1's tank bottom side end inboard is equipped with fixed plate 5, 1 both sides opening end inboard of U-shaped support is equipped with mounting plate 6 respectively, two mounting plates open there is the screw hole, be equipped with butterfly screw 7 in the screw hole. The center of the outer side of the fixing plate is provided with a step positioning pin 10.
The positioning slide block 3 is in a straight shape.
As shown in fig. 1, the length of the guide runner 2 is greater than the depth of the U-shaped bracket 1.
As shown in fig. 3, the fixing plate 5 has a width greater than that of the fastening plate 6.
The working principle of the utility model is as follows: will the utility model discloses fix on two upper and lower chucks 8, according to sample 9 width adjustment location slider 3 positions, fixed position slider 3 leans on tight location slider 3 with sample 9, steps up sample 9 with upper and lower chuck 8, has guaranteed the centering degree of sample 9, has adjusted speed, starts the maximum load that the sample bore can be recorded to the pulling force machine.
The fixing method of the utility model is as follows: the step positioning pin 10 on the fixing plate 5 is inserted into the positioning hole of the chuck, so that the fixing plate 5 clamps the outer side of the chuck 8, the fastening plate 6 is buckled at the other end of the chuck 8, and the U-shaped bracket is fixed on the chuck by adjusting the butterfly screw 7 on the fastening plate 6.
Claims (5)
1. The utility model provides a positioner for tensile test sample anchor clamps, its characterized in that includes the U-shaped support, open the centre on U type support both sides has the guide rail spout, U-shaped support inboard is equipped with the location slider between two guide rail spouts, fix a position the slider both ends through the screw fixation on the guide rail spout, both sides at U-shaped support outside guide rail spout are equipped with the scale, the tank bottom side end face inboard of U type support is equipped with the fixed plate, U type support both sides opening end portion inboard is equipped with the mounting plate respectively, two mounting plates are opened there is the screw hole, be equipped with the butterfly screw in the screw hole.
2. The positioning device for the specimen holder for tensile tests according to claim 1, characterized in that said positioning slider is in the shape of a straight line.
3. The positioning device for the tensile test specimen holder of claim 1 wherein the length of the guide track runner is greater than the depth of the U-shaped bracket.
4. The positioning device of claim 1, wherein the width of the securing plate is greater than the width of the fastening plate.
5. The positioning device for the tensile test specimen holder according to claim 1, wherein the fixing plate is provided with a step positioning pin at the outer center.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020697247.4U CN212110907U (en) | 2020-04-30 | 2020-04-30 | Positioning device for tensile test sample clamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020697247.4U CN212110907U (en) | 2020-04-30 | 2020-04-30 | Positioning device for tensile test sample clamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212110907U true CN212110907U (en) | 2020-12-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020697247.4U Active CN212110907U (en) | 2020-04-30 | 2020-04-30 | Positioning device for tensile test sample clamp |
Country Status (1)
| Country | Link |
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| CN (1) | CN212110907U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113567237A (en) * | 2021-06-25 | 2021-10-29 | 鞍钢股份有限公司 | Four-way stretching limiting device and method |
| CN113702180A (en) * | 2021-08-13 | 2021-11-26 | 山东钢铁集团日照有限公司 | Initial accurate accuse position isolated plant of tensile properties test |
-
2020
- 2020-04-30 CN CN202020697247.4U patent/CN212110907U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113567237A (en) * | 2021-06-25 | 2021-10-29 | 鞍钢股份有限公司 | Four-way stretching limiting device and method |
| CN113702180A (en) * | 2021-08-13 | 2021-11-26 | 山东钢铁集团日照有限公司 | Initial accurate accuse position isolated plant of tensile properties test |
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