CN202804983U - Positioning clamp for axial fatigue test - Google Patents
Positioning clamp for axial fatigue test Download PDFInfo
- Publication number
- CN202804983U CN202804983U CN 201220438076 CN201220438076U CN202804983U CN 202804983 U CN202804983 U CN 202804983U CN 201220438076 CN201220438076 CN 201220438076 CN 201220438076 U CN201220438076 U CN 201220438076U CN 202804983 U CN202804983 U CN 202804983U
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- clamp body
- caliper
- clamper body
- main clamper
- main
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- Expired - Fee Related
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Abstract
The utility model relates to a positioning clamp for an axial fatigue test. The positioning clamp comprises a main clamp body and a secondary clamp body, wherein a left main clamp body and a right main clamp body of the main clamp body form a symmetric crossed main clamp body through a first nut, and the lower parts of the left main clamp body and the right main clamp body are connected by a spring; a left secondary clamp body and a right secondary clamp body of the secondary clamp body form a symmetric crossed secondary clamp body through a second nut; the middle upper parts of the left main clamp body and the right main clamp body are respectively provided with a movable loop base, and the lower parts of the left secondary clamp body and the right secondary clamp body are connected with the main clamp body through the movable loop bases; and the upper ends of the left main clamp body and the right main clamp body are respectively provided with a first positioning block, and the upper ends of the left secondary clamp body and the right secondary clamp body are respectively provided with a second positioning block. The positioning clamp for the axial fatigue test, disclosed by the utility model, can ensure the parallelism depth and the coaxiality of a sample and a fatigue testing machine clamp, and improves the test stability and the test efficiency.
Description
Technical field
The utility model relates to the axial fatigue test positioning clamp of the tabular sample of a kind of metal material.
Background technology
Fatigue rupture is the principal mode of mechanical part initial failure.According to statistics, there are approximately 80% above parts to lose efficacy and caused that by fatigue wherein great majority are unexpected fractures, cause serious loss.Therefore, the fatigue strength of research metal material and promote fatigue design is to the dependability that improves the metal engineering goods with very important meaning is arranged service life.And fatigue design is a subject that is based upon on the experimental basis, considers that from cost and experiment operability aspect general multiplex simple in structure, cheap standard specimen carries out fatigue test, so that fatigue behaviour data and fatigue design data to be provided.In addition, along with the demand to the Automobile Plate product in the society increases day by day, and for the consideration to secure context, the fatigue experiment of the plate tensile sample of associated metal material also more and more comes into one's own, and tested number is also increasing.
In fatigue test, the depth of parallelism of sample and axiality are very large on the result of the test impact.At present, axiality and the depth of parallelisms that adopt manual setting sample and fatigue test machine clamp in the axial fatigue test of plate tensile sample more, so just there is following problem: the existence of frictional force in clamping process because between sample and the anchor clamps, the traditional-handwork adjustment is wasted time and energy, test efficiency is low, and precision is difficult to control.
The utility model content
Technical problem to be solved in the utility model provides a kind of axial fatigue test and uses positioning clamp, this positioning clamp can guarantee the depth of parallelism and the axiality of sample and fatigue test machine clamp.
The technical scheme that the utility model adopts is: a kind of axial fatigue test positioning clamp, it includes main clamper body and time caliper, the left main clamper body of main clamper body and right main clamper body form symmetrical main crossings caliper by the first nut, and left main clamper body is connected the bottom and is connected by spring with right main clamper body; The left time caliper of inferior caliper forms the intersection caliper with right time caliper symmetrical time by the second nut; The middle and upper part of described left main clamper body and right main clamper body is respectively equipped with the kink pedestal, left caliper the and be connected bottom of inferior caliper and passes through the kink pedestal and be connected with main clamper body; The upper end of described left main clamper body and right main clamper body is respectively equipped with the first locating piece, and the upper end of a described left side time caliper and right time caliper is respectively equipped with the second locating piece.
Press such scheme, described kink pedestal is symmetrically fixed on and the equidistant position of the first nut.
Press such scheme, described the first nut places the middle and lower part of main clamper body; Described the second nut places the middle and upper part of time caliper; The centre symmetry line conllinear of described main clamper body and time caliper.
Press such scheme, described the first locating piece is connected with main clamper body by pin; Described the second locating piece is connected with time caliper by pin.
Press such scheme, described the second locating piece is arc or square.
The beneficial effects of the utility model are: 1, the utility model is combined by main clamper body and inferior caliper, the two centre symmetry line conllinear, the accuracy of sample and fatigue test machine clamp centering when having guaranteed test; Main clamper body all is connected with locating piece by pin with the caliper end of being connected, and main clamper body and time caliper are free to rotate, guarantees the perpendicularity of sample; Only need simple main clamper body to add the clamping step of time caliper, just can the horizontal direction to sample easily and effectively position, improve test stability and test efficiency.2, the main clamper body lower end is provided with spring, to guarantee that main clamper body can clamp naturally, liberates both hands, and convenient operation time caliper is easy to operate, practical.3, can choose difform the second locating piece according to the various sample form, the scope of application is wide.
Description of drawings
Fig. 1 is the structural representation that positioning clamp is used in the test of the utility model axial fatigue.
Fig. 2 is the use structural representation that positioning clamp is used in the test of the utility model axial fatigue.
Among the figure: 1, main clamper body, 1-1, left main clamper body, 1-2, right main clamper body, 2, spring, the 3, first nut, 4, inferior caliper, 4-1, left time caliper, 4-2, right time caliper, 5-1, the first kink matrix, 5-2, the second kink matrix, the 6, first location is fast, and the 7, second location is fast, 8, sample, 9, fatigue test machine clamp, the 10, second nut, 11, pin.
The specific embodiment
Further specify embodiment of the present utility model below in conjunction with accompanying drawing.
Referring to Fig. 1 and Fig. 2, a kind of axial fatigue test positioning clamp, it includes main clamper body 1 and time caliper 4, and the left main clamper body 1-1 of main clamper body 1 and right main clamper body 1-2 form symmetrical main crossings caliper by the first nut 3, and left main clamper body 1-1 is connected the bottom by spring 2 connections with right main clamper body 1-2; The left time caliper 4-1 of inferior caliper 4 and right inferior caliper 4-2 form the intersection caliper symmetrical time by the second nut 10; The middle and upper part of described left main clamper body 1-1 is provided with the first kink pedestal 5-1, the middle and upper part of described right main clamper body 1-2 is provided with the second kink pedestal 5-2, the bottom of left time caliper 4-1 is connected with right main clamper body 1-2 by the second kink pedestal 5-2, and the bottom of right time caliper 4-2 is connected with left main clamper body 1 by the first kink pedestal 5-1; The upper end of described left main clamper body 1-1 and right main clamper body 1-2 is respectively equipped with the first locating piece 6, and the upper end of a described left side time caliper 4-1 and right time caliper 4-2 is respectively equipped with the second locating piece 7; Described the first locating piece 6 is connected with main clamper body 1 by pin 11; Described the second locating piece 7 is connected with time caliper 4 by pin 11.
In the utility model, described the first kink pedestal 5-1 and the second kink pedestal 5-2 are symmetrically fixed on and the first nut 3 equidistant positions.Described the first nut 3 places the middle and lower part of main clamper body 1, and described the second nut 10 places the middle and upper part of time caliper 4, and the centre symmetry line conllinear of described main clamper body 1 and time caliper 4.
During use, be in the center position of fatigue test machine clamp 9 to satisfy test axiality and depth of parallelism requirement, as shown in Figure 2 for making sample 8, at first the first locating piece 6 is clipped in the lower end of fatigue test machine clamp 9, under the effect of spring 2, it clamps naturally, and perpendicular to fatigue test machine clamp 9.This moment main clamper body 1 and time caliper 2 centre symmetry line with the testing machine central lines.Only need the adjusting of centerline of sample 8 can be finished centering to changing on the coincidence line.Therefore, use end second locating piece 7 of time caliper 4 to rap folder sample 8, until second locating piece 7 at inferior caliper 4 two ends is held on sample 8 both sides symmetrically and evenly, under the clamping force effect, the second locating piece 7 natures are namely finished centering perpendicular to sample 8 surfaces.It should be noted that in this process, not only make sample 8 be in the center position of grip of testing machine 9 fully, and because the clamping of the second locating piece 7, it must be perpendicular to fatigue test machine clamp 9, and is namely coaxial with the test body.In addition, be the arcuation sample such as sample 8, can choose the second locating piece 7 that identical radian measure is arranged, can reach above-mentioned locating effect equally.
The above; only being preferred embodiment of the present utility model, is not that the utility model is done any pro forma restriction, and those skilled in the art utilize the technology contents of above-mentioned announcement to make a little simple modification; equivalent variations or modification all drop in the protection domain of the present utility model.
Claims (5)
1. positioning clamp use in axial fatigue test, it is characterized in that: include main clamper body and inferior caliper, the left main clamper body of main clamper body and right main clamper body form symmetrical main crossings caliper by the first nut, and left main clamper body is connected the bottom and is connected by spring with right main clamper body; The left time caliper of inferior caliper forms the intersection caliper with right time caliper symmetrical time by the second nut; The middle and upper part of described left main clamper body and right main clamper body is respectively equipped with the kink pedestal, left caliper the and be connected bottom of inferior caliper and passes through the kink pedestal and be connected with main clamper body; The upper end of described left main clamper body and right main clamper body is respectively equipped with the first locating piece, and the upper end of a described left side time caliper and right time caliper is respectively equipped with the second locating piece.
2. positioning clamp is used in axial fatigue test as claimed in claim 1, and it is characterized in that: described kink pedestal is symmetrically fixed on and the equidistant position of the first nut.
3. positioning clamp is used in axial fatigue test as claimed in claim 1, and it is characterized in that: described the first nut places the middle and lower part of main clamper body; Described the second nut places the middle and upper part of time caliper; The centre symmetry line conllinear of described main clamper body and time caliper.
4. positioning clamp is used in axial fatigue test as claimed in claim 1, and it is characterized in that: described the first locating piece is connected with main clamper body by pin; Described the second locating piece is connected with time caliper by pin.
5. use positioning clamp such as claim 1 or 4 described axial fatigue tests, it is characterized in that: described the second locating piece is arc or square.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220438076 CN202804983U (en) | 2012-08-31 | 2012-08-31 | Positioning clamp for axial fatigue test |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220438076 CN202804983U (en) | 2012-08-31 | 2012-08-31 | Positioning clamp for axial fatigue test |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202804983U true CN202804983U (en) | 2013-03-20 |
Family
ID=47863926
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220438076 Expired - Fee Related CN202804983U (en) | 2012-08-31 | 2012-08-31 | Positioning clamp for axial fatigue test |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202804983U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105479477A (en) * | 2015-12-30 | 2016-04-13 | 苏州林信源自动化科技有限公司 | Detachable simple mechanical gripper |
| CN106863162A (en) * | 2017-04-24 | 2017-06-20 | 中国工程物理研究院总体工程研究所 | The small-sized hex nut clamp of self-action |
-
2012
- 2012-08-31 CN CN 201220438076 patent/CN202804983U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105479477A (en) * | 2015-12-30 | 2016-04-13 | 苏州林信源自动化科技有限公司 | Detachable simple mechanical gripper |
| CN106863162A (en) * | 2017-04-24 | 2017-06-20 | 中国工程物理研究院总体工程研究所 | The small-sized hex nut clamp of self-action |
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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: 20130320 Termination date: 20170831 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |