CN105424519A - Objective table for friction and wear tester - Google Patents
Objective table for friction and wear tester Download PDFInfo
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- CN105424519A CN105424519A CN201410473729.0A CN201410473729A CN105424519A CN 105424519 A CN105424519 A CN 105424519A CN 201410473729 A CN201410473729 A CN 201410473729A CN 105424519 A CN105424519 A CN 105424519A
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- friction
- objective table
- sample
- wear tester
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Abstract
The invention discloses an objective table for a friction and wear tester. The objective table comprises an upper threaded column 1, a sample 2, a soft support 3 and a lower fixing threaded column 4. The special objective table irrelevant to sample precision is provided, so that the depth of parallelism of a friction pair is only relative to the machining precision of the objective table; accordingly, on the one hand, the test error is reduced; on the other hand, errors produced through the test are the same, and test results have comparability; meanwhile, the requirement for the machining precision of the sample is lowered, the sample preparation time is saved, and working efficiency is improved.
Description
Technical field
The present invention designs a kind of friction and wear tester objective table, belongs to friction and wear tester technical field.
Background technology
When using MMG-5 high temperature friction and wear testing machine to carry out friction-wear test, when sample (sample 2) is installed on testing machine push-down head, certain requirement is proposed to the depth of parallelism of two planes of sample, this requires to be suitable for some softer metals, but for the material that some are hard and crisp, such as wimet, pottery etc., inapplicable.For hard and crisp sample material, be not easy on the one hand to process the sample that the upper and lower depth of parallelism meets the demands, wimet, pottery etc. that such as hardness is very high, be not easy to process the cylindrical hole matched with push-down head metal column on the other hand, this just needs first to process the metal disk with cylindrical hole matched with push-down head metal column, and then processing adheres to hard and crisp material on metal disk, this process is that the parallelism error between sample upper surface and testing machine seaming chuck lower surface increases, and even occurs the observable gap of naked eyes.
Summary of the invention
MMG-5 high temperature friction and wear testing machine is very high to the requirement on machining accuracy of sample, and experimental error is along with different samples meeting difference.Therefore, the invention provides a kind of special objective table irrelevant with sample precision, this makes the depth of parallelism of friction pair only relevant with the machining precision of objective table, experimental error can be made to reduce so on the one hand, the error of experiment generation is identical on the other hand, and experimental result has comparability.The requirement of sample machining precision is reduced simultaneously, save the sample preparation time, increase work efficiency.
A kind of friction and wear tester objective table proposed by the invention, structure is simple, comprises threaded post 1, sample 2, soft support 3, lower retaining thread post 4.
The invention is characterized in that threaded post 1 and lower retaining thread post 4 are threaded connection, namely internal thread 1-3 coordinates with external thread 4-2.
The invention is characterized in the depth of parallelism of the ring-shaped step plane 1-2 of described upper threaded post 1 with the push-down head of friction and wear tester for benchmark, meet the requirement of experiment of testing machine; It is characterized in that the ring-shaped step plane 1-2 of threaded post 1 coordinates with the finishing polish face of sample 2.
The invention is characterized in that described lower retaining thread post 4 lower surface has two cylindrical hole 4-3, two cylindrical fits of cylindrical hole and friction and wear tester push-down head.
The invention is characterized in that soft support 3 is placed in threaded post 1 and lower retaining thread post 4 is inner, its shape produces change along with tightening of screw thread, plays a supporting role to sample 2.
Accompanying drawing explanation
Fig. 1 is the overall appearance schematic diagram of the specific embodiment of the invention.
Fig. 2 is the assembly structure figure of the specific embodiment of the invention.
Fig. 3 is the schematic appearance of the upper threaded post 1 of the specific embodiment of the invention.
Fig. 4 is the diagrammatic cross-section of the upper threaded post 1 of the specific embodiment of the invention.
Fig. 5 is the schematic appearance of the lower retaining thread post 4 of the specific embodiment of the invention.
Fig. 6 is the structural representation of the lower retaining thread post 4 of the specific embodiment of the invention.
In figure: 1 threaded post; 2 samples; 3 soft supports; 4 times retaining thread posts; 1-1 cylindrical hole; 1-2 planar annular; 1-3 internal thread; 4-1 holds body; 4-2 external thread; 4-3 cylindrical hole.
Embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described.
As shown in the figure, a kind of friction and wear tester objective table of the present invention, comprises 4 parts such as threaded post 1, sample 2, soft support 3, lower retaining thread post 4.
Upper threaded post 1 mainly comprises 3 parts such as cylindrical hole 1-1, planar annular 1-2, internal thread 1-3.Cylindrical hole 1-1 guarantee friction wear testing machine seaming chuck can with sample contacts; Planar annular 1-2 is the surface of contact of sample polished surface, and this face is through finishing, and its depth of parallelism relative to friction wear testing machine push-down head plane requires higher, meets experimental machine requirement; Internal thread 1-3 and external thread 4-2 precision-fit.
Sample 2 and planar annular 1-2 surface of contact are through polishing, and reach minute surface, another side guarantees it is plane, and depth of parallelism requirement is not done on two sides.
Soft support 3 is as pressure parts, and hardness is higher, can be rubber, can be the soft material of other high rigidity, can be cylindrical, bucket type, also can be random filling material.
Lower retaining thread post 4 mainly comprises and holds 3 parts such as body 4-1, external thread 4-2, cylindrical hole 4-3.Hold body 4-1 to be used for holding soft support 3; External thread 4-2 and internal thread 1-3 precision-fit; The cylindrical fit of cylindrical hole 4-3 and testing machine push-down head.
Using method: the appearance body 4-1 soft support 3 being put into lower retaining thread post 4, sample 2 contacts with planar annular 1-2, and upper threaded post 1 and lower retaining thread post 4 are tightened.Along with the increase be threaded into, soft support 3 is gradually by compression deformation, and sample 2 is gradually compacted with planar annular 1-2.The screw-in of screw thread can be stopped when the power that soft support 3 is born is greater than testing machine experiment power.Objective table is put into push-down head can test.
Claims (4)
1. a friction and wear tester objective table, comprises threaded post 1, sample 2, soft support 3, lower retaining thread post 4, and it is characterized in that threaded post 1 and lower retaining thread post 4 are threaded connection, namely internal thread 1-3 coordinates with external thread 4-2.
2. a kind of friction and wear tester objective table according to claim 1, is characterized in that the depth of parallelism of the ring-shaped step plane 1-2 of described upper threaded post 1 with the push-down head of friction and wear tester for benchmark, meets the requirement of experiment of testing machine; It is characterized in that the ring-shaped step plane 1-2 of threaded post 1 coordinates with the finishing polish face of sample 2.
3. a kind of friction and wear tester objective table according to claim 1, is characterized in that described lower retaining thread post 4 lower surface has two cylindrical hole 4-3, two cylindrical fits of cylindrical hole and friction and wear tester push-down head.
4. a kind of friction and wear tester objective table according to claim 1, it is characterized in that soft support 3 is placed in threaded post 1 and lower retaining thread post 4 is inner, its shape produces change along with tightening of screw thread, plays a supporting role to sample 2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410473729.0A CN105424519A (en) | 2014-09-17 | 2014-09-17 | Objective table for friction and wear tester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410473729.0A CN105424519A (en) | 2014-09-17 | 2014-09-17 | Objective table for friction and wear tester |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105424519A true CN105424519A (en) | 2016-03-23 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410473729.0A Pending CN105424519A (en) | 2014-09-17 | 2014-09-17 | Objective table for friction and wear tester |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105424519A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110426404A (en) * | 2019-08-08 | 2019-11-08 | 蒋一鸣 | A kind of objective table and device for the imaging of computer demixing scan |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3249806B2 (en) * | 2000-03-13 | 2002-01-21 | 西川化成株式会社 | Assist grip mounting structure |
| CN101899681A (en) * | 2009-06-01 | 2010-12-01 | 高伟 | Anode conducting clamping fixture |
| CN202964045U (en) * | 2012-11-08 | 2013-06-05 | 天津正天医疗器械有限公司 | Hold-down clamp expanded laterally |
| CN203519545U (en) * | 2013-07-30 | 2014-04-02 | 华南理工大学 | Fixture applied to electrochemical test |
-
2014
- 2014-09-17 CN CN201410473729.0A patent/CN105424519A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3249806B2 (en) * | 2000-03-13 | 2002-01-21 | 西川化成株式会社 | Assist grip mounting structure |
| CN101899681A (en) * | 2009-06-01 | 2010-12-01 | 高伟 | Anode conducting clamping fixture |
| CN202964045U (en) * | 2012-11-08 | 2013-06-05 | 天津正天医疗器械有限公司 | Hold-down clamp expanded laterally |
| CN203519545U (en) * | 2013-07-30 | 2014-04-02 | 华南理工大学 | Fixture applied to electrochemical test |
Non-Patent Citations (1)
| Title |
|---|
| W.D.FRANCE,JR.: "A specimen Holder for Precise Electrochemical Polarization Measurements on Metal Sheets and Foils", 《JOURNAL OF THE ELCTROCHEMICAL SOCIETY》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110426404A (en) * | 2019-08-08 | 2019-11-08 | 蒋一鸣 | A kind of objective table and device for the imaging of computer demixing scan |
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Application publication date: 20160323 |
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