CN105547817A - Anti-rotation device for lower chuck of electro-hydraulic servo testing machine - Google Patents
Anti-rotation device for lower chuck of electro-hydraulic servo testing machine Download PDFInfo
- Publication number
- CN105547817A CN105547817A CN201510870592.7A CN201510870592A CN105547817A CN 105547817 A CN105547817 A CN 105547817A CN 201510870592 A CN201510870592 A CN 201510870592A CN 105547817 A CN105547817 A CN 105547817A
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- bearing
- bent plate
- screw
- lower chuck
- main support
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/02—Details
- G01N3/04—Chucks
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/04—Chucks, fixtures, jaws, holders or anvils
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- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention relates to an anti-rotation device for the lower chuck of an electro-hydraulic servo testing machine. The anti-rotation device is prepared by assembling a main support vertical bent plate, a bearing positioning shaft, a bearing, a bearing baffle plate, and a fixed baffle plate. The anti-rotation device has the advantages of scientific design, simple structure, low cost, and easiness in manufacturing and processing, and is used for the lower chuck of an electro-hydraulic servo testing machine. By arranging the anti-rotation device on the lower chuck of an electro-hydraulic servo testing machine, the additional torque of the lower chuck can be effectively eliminated, the application range of the testing machine is enlarged, the precision of tests can be guaranteed, and the anti-rotation device has a wide popularization and application value and is capable of improving the precision of fatigue tests of thin plates with high small rigidity and other cross section forms.
Description
Technical field
The present invention relates to electro-hydraulic servo testing machine technical field, especially a kind of anti-rotation device for electro-hydraulic servo testing machine lower chuck.
Background technology
Electro-hydraulic servo testing machine is used to the experimental facilities of the stretching of test material, compression, low week and high cycle fatigue, component and even complete machine dynamic fatigue lifetime, is widely used in the fields such as Aero-Space, vehicle, boats and ships, building, machinery, institution of higher learning and research institute.
Hydraulic actuator is the test execution unit of electro-hydraulic servo testing machine, applies to control, the speed of controllable load, direction, displacement and power to subjects.Hydraulic actuator is connected with electro-hydraulic servo testing machine lower chuck, because hydraulic actuator itself does not possess the function limiting circumferentially rotary freedom.Be again that hydraulic chuck is by hydraulic oil pipe fuel feeding, and hydraulic oil pipe is elastic body, and its rigidity changes along with the change of pressure, in static and dynamic test process, be all unstable, along with the carrying out of test, it has the trend of ordering about chuck and rotating.So just there is a practical problems, when carrying out plate tensile sample torture test, sample holder, between fixed chuck and active chuck, normally with the angle of the orientation of fixed chuck for benchmark adjustment active chuck, thus realizes initial without moment of torsion clamp position.Under meticulously adjusting, this moment of torsion may be very little, impact for the enough large sample of rigidity is negligible, but for the plate tensile sample that those torsional rigidities are very low, impact is obvious, especially for the thin plate sample that rigidity is little especially, impact is quite large, and the fracture surface of sample pattern after test has obvious twisting action feature.There is this problem equally in the sample for other cross sectional shapes.
Summary of the invention
The object of the invention is to make up the deficiencies in the prior art part, provide a kind of additional torque effectively can eliminating lower chuck, the anti-rotation device for electro-hydraulic servo testing machine lower chuck of warranty test precision.
The object of the invention is to be realized by following technological means:
A kind of anti-rotation device for electro-hydraulic servo testing machine lower chuck, it is characterized in that: comprise the vertical bent plate of main support, bearing locating shaft, bearing, bearing baffle and fixed dam, bearing locating shaft is two of upper and lower setting, the axis of this upper and lower bearing locating shaft is arranged on lower chuck at the vertical direction determining deviation that is staggered, each bearing locating shaft is all set with a bearing, the vertical bent plate of main support is made a vertical elongated hole, two bearings are all arranged in this vertical elongated hole;
The left and right sides at the vertical bent plate back side of main support makes a groove slideway respectively, these two groove slideways are all connected with vertical elongated hole, all be slidably installed in each groove slideway a bearing baffle, and this bearing baffle is arranged in the groove slideway of the vertical bent plate of main support by bearing baffle front clamping screw, left, the inner side of right bearing baffle plate is pushed up respectively and is pressed on the bearing of homonymy, left, the outside of right bearing baffle plate arranges a fixed dam respectively, this left side, right fixed dam is fixed on a left side for the vertical bent plate of main support respectively by fixed dam clamping sides screw, on right side wall, this left side, right fixed dam is all installed an adjustment screw, the front end of this adjustment screw is pushed up respectively and is pressed in a left side, on the lateral wall of right bearing baffle plate.
And the vertical bent plate of described main support is installed on the table by bent plate gib screw.
And, the left and right sides in described main support vertical bent plate front makes a horizontal elongated hole respectively, equal plug-in mounting bearing baffle front clamping screw in each horizontal elongated hole, this left and right bearing baffle front clamping screw is connected with clamping screw made on left and right bearing baffle respectively locks.
And the left and right sidewall of the vertical bent plate of described main support all makes side screw, fixed dam clamping sides screw is arranged in this side screw.
Advantage of the present invention and good effect are:
1, this device is primarily of the vertical bent plate of main support, upper and lower bearing and left and right bearing baffle are formed, after installation, the bearing be staggered up and down can only pump along left and right bearing baffle with lower chuck, when lower chuck has rotation trend, anti-rotation device can prevent the rotation of lower chuck to greatest extent, therefore not only ensure that the precision of test, but also expand the range of application of testing machine, be especially applicable to the very low plate tensile sample of torsional rigidity and use.
2, the assembling of this device is simple and easy to use, safe ready, and this device can be connected with testing machine under the condition of non-destructive test machine original structure, completes various test and measures.
3, the present invention is a kind of design science, structure is simple, cost is low, be easy to the anti-rotation device for electro-hydraulic servo testing machine lower chuck of processing and fabricating, by installing this anti-rotation device on electro-hydraulic servo testing machine lower chuck, effectively can eliminate the additional torque of lower chuck, the range of application of expanding test machine, the precision of warranty test, this anti-rotation device has application value widely, can improve the degree of accuracy of the torture test of little rigidity thin plate and other section form.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is diagrammatic cross-section of the present invention.
Embodiment
Embodiments of the invention are described in detail below in conjunction with accompanying drawing; It should be noted that, the present embodiment is narrative, is not determinate, can not limit protection scope of the present invention with this.
For an anti-rotation device for electro-hydraulic servo testing machine lower chuck, comprise the vertical bent plate 1 of main support, bearing locating shaft 6, bearing 7, bearing baffle 8 and fixed dam 3, the vertical bent plate of main support is arranged on worktable 13 by bent plate gib screw 2.Bearing locating shaft is two of upper and lower setting, the axis of this upper and lower bearing locating shaft is arranged on the lower chuck 12 of electro-hydraulic servo testing machine at the vertical direction determining deviation that is staggered, each bearing locating shaft is all set with a bearing, the vertical bent plate of main support is made a vertical elongated hole 5, two bearings to be all arranged in this vertical elongated hole.
The left and right sides at the vertical bent plate back side of main support makes a groove slideway 14 respectively, these two groove slideways are all connected with vertical elongated hole, all be slidably installed in each groove slideway a bearing baffle, and this bearing baffle is arranged in the groove slideway of the vertical bent plate of main support by bearing baffle front clamping screw 4.That is: a horizontal elongated hole is made respectively in the left and right sides in main support vertical bent plate front, equal plug-in mounting bearing baffle front clamping screw in each horizontal elongated hole, this left and right bearing baffle front clamping screw is connected with clamping screw 9 made on left and right bearing baffle respectively locks.
The inner side of left and right bearing baffle is pushed up respectively and is pressed on the bearing of homonymy, the outside of left and right bearing baffle arranges a fixed dam respectively, this left and right fixed dam is fixed on the left and right sidewall of the vertical bent plate of main support respectively by fixed dam clamping sides screw 11, that is: the left and right sidewall of the vertical bent plate of main support all makes side screw, and fixed dam clamping sides screw is arranged in this side screw.This left and right fixed dam is all installed one adjustment screw 10, the front end of this adjustment screw push up respectively be pressed in left and right bearing baffle lateral wall on.
Assembly method of the present invention and principle of work are:
With reference to Fig. 1, first with bent plate gib screw, vertical bent plate is fixed on the table, secondly the determining deviation that is staggered by the axis in the vertical direction of two bearing locating shafts is connected and fixed by screw thread and lower chuck, again with bearing assemble one, bearing baffle is loaded in groove slideway, and make left and right bearing baffle be adjacent to two bearings in left and right respectively, screw bearing baffle front clamping screw to be again connected with the clamping screw on bearing baffle and to lock, finally load onto fixed dam at bearing baffle with vertical bent plate side, and the baffle plate clamping sides screw that is tightened is connected with vertical bent plate side screw and locks, regulate adjustment screw simultaneously, it is made to hold out against bearing baffle side, can use after whole device assembling.
After installation, the bearing be staggered up and down can only be able to pump along left and right bearing baffle with lower chuck, can the rotation of operative constraint lower chuck.
Claims (4)
1. the anti-rotation device for electro-hydraulic servo testing machine lower chuck, it is characterized in that: comprise the vertical bent plate of main support, bearing locating shaft, bearing, bearing baffle and fixed dam, bearing locating shaft is two of upper and lower setting, the axis of this upper and lower bearing locating shaft is arranged on lower chuck at the vertical direction determining deviation that is staggered, each bearing locating shaft is all set with a bearing, the vertical bent plate of main support is made a vertical elongated hole, two bearings are all arranged in this vertical elongated hole;
The left and right sides at the vertical bent plate back side of main support makes a groove slideway respectively, these two groove slideways are all connected with vertical elongated hole, all be slidably installed in each groove slideway a bearing baffle, and this bearing baffle is arranged in the groove slideway of the vertical bent plate of main support by bearing baffle front clamping screw, left, the inner side of right bearing baffle plate is pushed up respectively and is pressed on the bearing of homonymy, left, the outside of right bearing baffle plate arranges a fixed dam respectively, this left side, right fixed dam is fixed on a left side for the vertical bent plate of main support respectively by fixed dam clamping sides screw, on right side wall, this left side, right fixed dam is all installed an adjustment screw, the front end of this adjustment screw is pushed up respectively and is pressed in a left side, on the lateral wall of right bearing baffle plate.
2. a kind of anti-rotation device for electro-hydraulic servo testing machine lower chuck according to claim 1, is characterized in that: the vertical bent plate of described main support is installed on the table by bent plate gib screw.
3. a kind of anti-rotation device for electro-hydraulic servo testing machine lower chuck according to claim 1, it is characterized in that: the left and right sides in described main support vertical bent plate front makes a horizontal elongated hole respectively, equal plug-in mounting bearing baffle front clamping screw in each horizontal elongated hole, this left and right bearing baffle front clamping screw is connected with clamping screw made on left and right bearing baffle respectively locks.
4. a kind of anti-rotation device for electro-hydraulic servo testing machine lower chuck according to claim 1, it is characterized in that: the left and right sidewall of the vertical bent plate of described main support all makes side screw, fixed dam clamping sides screw is arranged in this side screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510870592.7A CN105547817B (en) | 2015-12-01 | 2015-12-01 | Anti-rotation device for collet under electro-hydraulic servo testing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510870592.7A CN105547817B (en) | 2015-12-01 | 2015-12-01 | Anti-rotation device for collet under electro-hydraulic servo testing machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105547817A true CN105547817A (en) | 2016-05-04 |
| CN105547817B CN105547817B (en) | 2018-12-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510870592.7A Expired - Fee Related CN105547817B (en) | 2015-12-01 | 2015-12-01 | Anti-rotation device for collet under electro-hydraulic servo testing machine |
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| Country | Link |
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| CN (1) | CN105547817B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100074047A1 (en) * | 2007-02-08 | 2010-03-25 | Cps Color Equipment Spa Con Unico Socio | Anti-rotation device for a gripping member of a mixing machine for fluid products contained in a closed container |
| CN201514355U (en) * | 2009-09-25 | 2010-06-23 | 首钢总公司 | Anti-rotation device used in steel stranded wire fatigue test |
| CN203109283U (en) * | 2013-03-06 | 2013-08-07 | 南京紫薇精密机械有限公司 | Anti-skidding collet |
| CN103954510A (en) * | 2014-03-27 | 2014-07-30 | 西北工业大学 | Apparatus and testing method for testing sample creep property in ultra high temperature environment |
| CN104007016A (en) * | 2014-05-13 | 2014-08-27 | 深圳市瑞格尔仪器有限公司 | Electro-hydraulic servo horizontal tensile testing machine |
| CN104142266A (en) * | 2014-07-31 | 2014-11-12 | 浙江大学 | Clamp for compact tension specimen of material testing machine under high pressure hydrogen environment |
-
2015
- 2015-12-01 CN CN201510870592.7A patent/CN105547817B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100074047A1 (en) * | 2007-02-08 | 2010-03-25 | Cps Color Equipment Spa Con Unico Socio | Anti-rotation device for a gripping member of a mixing machine for fluid products contained in a closed container |
| CN201514355U (en) * | 2009-09-25 | 2010-06-23 | 首钢总公司 | Anti-rotation device used in steel stranded wire fatigue test |
| CN203109283U (en) * | 2013-03-06 | 2013-08-07 | 南京紫薇精密机械有限公司 | Anti-skidding collet |
| CN103954510A (en) * | 2014-03-27 | 2014-07-30 | 西北工业大学 | Apparatus and testing method for testing sample creep property in ultra high temperature environment |
| CN104007016A (en) * | 2014-05-13 | 2014-08-27 | 深圳市瑞格尔仪器有限公司 | Electro-hydraulic servo horizontal tensile testing machine |
| CN104142266A (en) * | 2014-07-31 | 2014-11-12 | 浙江大学 | Clamp for compact tension specimen of material testing machine under high pressure hydrogen environment |
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| Publication number | Publication date |
|---|---|
| CN105547817B (en) | 2018-12-14 |
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