CN102116717A - Material testing machine-based ball screw assembly axial static stiffness testing clamp - Google Patents
Material testing machine-based ball screw assembly axial static stiffness testing clamp Download PDFInfo
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- CN102116717A CN102116717A CN 201010565577 CN201010565577A CN102116717A CN 102116717 A CN102116717 A CN 102116717A CN 201010565577 CN201010565577 CN 201010565577 CN 201010565577 A CN201010565577 A CN 201010565577A CN 102116717 A CN102116717 A CN 102116717A
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Abstract
The invention relates to a material testing machine-based ball screw assembly axial static stiffness testing clamp. The clamp comprises a pull-up block, wherein the pull-up block is provided with at least two pull rods; one end of each pull rod is connected with the pull-up block, and the other end of each pull rod is connected with a pressing block; the pressing block is provided with an inner hole through which a ball screw to be tested passes; the upper end of the pressing block is provided with a round chamfer; the pressing block is provided with an adjusting block; the adjusting block is provided with an inner hole through which the ball screw to be tested passes, the lower part of the inner hole is provided with a conical hole and the conical hole is contacted with the round chamfer of the pressing block; and the adjusting block is provided with a nut for connecting the ball screw to be tested. Through the clamp, the axial static stiffness of the ball screw assembly can be tested on the conventional material testing machine; the cost for testing the axial static stiffness of the ball screw assembly is reduced; the testing accuracy is improved; and the clamp has the advantage of compact structure.
Description
Technical field
The invention belongs to the rigidity test technical field, particularly the axial quiet rigidity test technology of ball screw assembly, is used for the axial quiet rigidity property index at Material Testing Machine measurement ball screw assembly.
Background technology
Axial quiet rigidity R is defined as the ability (load that the unit deformation amount is required) of opposing axial deformation, and it has been represented under responsive to axial force, is axially producing deflection
For
The axial force of Shi Suoxu
(
Unit: N).To sum up the axial quiet rigidity test of ball screw assembly, relates to the twice gordian technique, and promptly axial force applies test with axial deformation.But because loading direction is axially in the ball screw assembly, real work, and deflection is at micron order, and these bring difficulty for tests of the axial quiet rigidity of ball screw assembly.NSK company adopts a pair of synchronously driven precise ball screw pair to load on and develops the axial contact stiffness measuring machine of ball screw assembly, the nineties in 20th century; Domestic, Shandong University Building began to attempt the design specialized hydraulic system in 2008 and axially loads, carry out the detection of the axial quiet rigidity of ball screw assembly, by collection and processing to force cell and displacement transducer signal, this device need be used the rotation that the pressurization of extra hydraulic means and T type guide rail are controlled leading screw, can only pressurize to leading screw simultaneously, the loading form is single, spends greatlyyer, and technological means also is in the immature stage.Therefore, quicker, convenient, axial cheaply quiet device for testing stiffness can save production cost for enterprise, for the research of stiffness characteristics brings convenience, is significant in actual applications.
Summary of the invention
The invention provides a kind of axial quiet rigidity test anchor clamps of the ball screw assembly, based on Material Testing Machine that on the current material testing machine, carry out the axial quiet rigidity test of ball screw assembly,, the present invention reduces the cost of the axial quiet rigidity test of ball screw assembly,, improve measuring accuracy, have the advantage of compact conformation.
The present invention adopts following technical scheme:
The axial quiet rigidity test anchor clamps of a kind of ball screw assembly, based on Material Testing Machine, comprise: go up pulling block, on last pulling block, be provided with at least 2 pull bars, and an end of pull bar is connected with last pulling block, on the other end of pull bar, be connected with briquetting, on described briquetting, be provided with the endoporus that passes through for ball-screw to be measured, the upper end of described briquetting is a rounded corner, on described briquetting, be provided with regulating block, on regulating block, be provided with the endoporus that passes through for ball-screw to be measured, the bottom of described endoporus is that the rounded corner of taper hole and taper hole and briquetting is in contact with one another, and is provided with the nut that is used to connect ball-screw to be measured on regulating block.
Compared with prior art, the present invention has following advantage:
(1) precision height.Owing to have error in processing and the assembling, so directly can not guarantee that to the ball screw assembly, application of force to be measured application of force direction is consistent with the axis direction of ball-screw by briquetting, the present invention utilizes the taper hole of rounded corner on the briquetting and regulating block to implement axial tension to ball screw assembly, to be measured, played the effect of automatic aligning in pressure process, can guarantee that application of force direction is consistent with ball-screw axis direction, make the precision of test fixture improve.
(2) anti-rotation.For the axial quiet rigidity test experiment of ball screw assembly,, the anti-rotation problem of ball screw assembly, is crucial, and the present invention utilizes three pull bars, passes nut, and connects pressing mechanism, has played anti-rotation, the effect of guiding.
(3) can realize two kinds of metering systems.Test about the axial quiet rigidity of ball screw assembly, has two kinds of measuring methods: measure the elastic deformation and measurement leading screw elastic deformation with respect to nut of nut with respect to leading screw, the present invention can realize this two kinds of metering systems by positive and negative two kinds of mounting meanss.
Description of drawings
Fig. 1 is the axial quiet rigidity test jig Design figure of ball screw assembly.
Fig. 2 is the axial quiet rigidity test anchor clamps partial view of ball screw assembly.
Fig. 3 is the axial quiet rigidity test anchor clamps wiring layout of ball screw assembly.
Fig. 4 is a table folder front view.
Fig. 5 is a table folder auxiliary view.
Embodiment
The axial quiet rigidity test anchor clamps of a kind of ball screw assembly, based on Material Testing Machine, comprise: go up pulling block 5, on last pulling block 5, be provided with at least 2 pull bars 6, and an end of pull bar 6 is connected with last pulling block 5, on the other end of pull bar 6, be connected with briquetting 9, on described briquetting 9, be provided with the endoporus 91 that passes through for ball-screw to be measured, the upper end of described briquetting 9 is a rounded corner 92, on described briquetting 9, be provided with regulating block 8, on regulating block 8, be provided with the endoporus 81 that passes through for ball-screw to be measured, the bottom of described endoporus 81 is that the rounded corner 92 of taper hole 811 and taper hole 811 and briquetting 9 is in contact with one another, on regulating block 8, be provided with the nut 7 that is used to connect ball-screw to be measured, in the present embodiment, on last pulling block 5, be provided with 3 pull bars 6.
Measuring method is as follows:
Adopt these anchor clamps to carry out the measuring method of the axial quiet rigidity of ball screw assembly,, may further comprise the steps:
(1) chooses experiment and use ball screw assembly,, and the exemplar of choosing is repaired;
(2) assembling of anchor clamps, the upper and lower end of anchor clamps connects by cylindrical steel, earlier cylindrical steel is passed the nut flange, is connected with the anchor clamps briquetting with the anchor clamps upper grip respectively with the double end nut again, in the middle of needing before locking noting earlier the place mat dress being placed on;
(3) installation position displacement sensor;
(4) in the force loading system of Material Testing Machine, coding realizes that the stepped appearance of different power loads
(5) measure under the different loading force situations the axially variable quantity of displacement by axial little deformation measuring system;
(6) arrangement experimental data, the axial quiet rigidity of calculating exemplar.
Conclusion:
Utilize these anchor clamps can be implemented in the test of carrying out the axial quiet rigidity of ball screw assembly, on the Material Testing Machine, the balance that realizes axial load by regulating block-forming machanism applies, the utilization of three cylindrical steels can prevent effectively that nut from rotating, and guarantees that the result that displacement sensor goes out is the elastic displacement of ball screw assembly, under applied external force.By changing the position of portable inductance amesdial, can not only measure the deflection of nut with respect to leading screw, also can measure the deflection of nut and leading screw self respectively, for providing strong data, follow-up study supports.Each discrete parts of anchor clamps adopts the double end nut to connect the global design easy accessibility.
Claims (2)
1. axial quiet rigidity test anchor clamps of the ball screw assembly, based on Material Testing Machine, it is characterized in that, comprise: go up pulling block (5), on last pulling block (5), be provided with at least 2 pull bars (6), and an end of pull bar (6) is connected with last pulling block (5), on the other end of pull bar (6), be connected with briquetting (9), on described briquetting (9), be provided with the endoporus (91) that passes through for ball-screw to be measured, the upper end of described briquetting (9) is rounded corner (92), on described briquetting (9), be provided with regulating block (8), on regulating block (8), be provided with the endoporus (81) that passes through for ball-screw to be measured, the bottom of described endoporus (81) is that the rounded corner (92) of taper hole (811) and taper hole (811) and briquetting (9) is in contact with one another, and is provided with the nut (7) that is used to connect ball-screw to be measured on regulating block (8).
2. the axial quiet rigidity test anchor clamps of the ball screw assembly, based on Material Testing Machine according to claim 1 is characterized in that, are provided with 3 pull bars (6) on last pulling block (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010565577 CN102116717A (en) | 2010-11-30 | 2010-11-30 | Material testing machine-based ball screw assembly axial static stiffness testing clamp |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010565577 CN102116717A (en) | 2010-11-30 | 2010-11-30 | Material testing machine-based ball screw assembly axial static stiffness testing clamp |
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| CN102116717A true CN102116717A (en) | 2011-07-06 |
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| CN 201010565577 Pending CN102116717A (en) | 2010-11-30 | 2010-11-30 | Material testing machine-based ball screw assembly axial static stiffness testing clamp |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102944472A (en) * | 2012-11-14 | 2013-02-27 | 南京理工大学 | Device and method for measuring axial static rigidity of ball screw pair |
| CN103674516A (en) * | 2013-11-18 | 2014-03-26 | 北京宇航系统工程研究所 | Low temperature stiffness measuring device and method of diaphragm capsule assembly for carrier rocket |
| CN103913384A (en) * | 2013-01-08 | 2014-07-09 | 陕西汉江机床有限公司 | Axial rigidity measuring apparatus of ball screw assembly |
| CN106442119A (en) * | 2016-10-09 | 2017-02-22 | 金华送变电工程有限公司 | Clamping arm lead screw tension grip |
| CN106501074A (en) * | 2016-10-09 | 2017-03-15 | 金华送变电工程有限公司 | Draw-in groove leading screw tension grip |
| CN108106799A (en) * | 2016-11-25 | 2018-06-01 | 上汽通用五菱汽车股份有限公司 | A kind of automatic buffer glue Static stiffness test device and its test method |
| CN113532854A (en) * | 2021-06-25 | 2021-10-22 | 北京机械设备研究所 | Axial loading testing device for ball screw pair |
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| CN201133165Y (en) * | 2007-12-18 | 2008-10-15 | 浙江绍兴市天涯实业有限公司 | Ground locking pin support |
| CN201429552Y (en) * | 2009-02-20 | 2010-03-24 | 重庆大学 | Tensile testing device under ultrasonic vibration on universal material tester |
| CN202024931U (en) * | 2010-11-30 | 2011-11-02 | 东南大学 | Ball screw auxiliary axial static rigidity test fixture based on material testing machine |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN200975945Y (en) * | 2006-12-01 | 2007-11-14 | 山东济宁博特精密丝杠有限公司 | High speed precision ball screw pair integrated performance tester |
| CN201133165Y (en) * | 2007-12-18 | 2008-10-15 | 浙江绍兴市天涯实业有限公司 | Ground locking pin support |
| CN201429552Y (en) * | 2009-02-20 | 2010-03-24 | 重庆大学 | Tensile testing device under ultrasonic vibration on universal material tester |
| CN202024931U (en) * | 2010-11-30 | 2011-11-02 | 东南大学 | Ball screw auxiliary axial static rigidity test fixture based on material testing machine |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102944472A (en) * | 2012-11-14 | 2013-02-27 | 南京理工大学 | Device and method for measuring axial static rigidity of ball screw pair |
| CN102944472B (en) * | 2012-11-14 | 2014-11-12 | 南京理工大学 | Device and method for measuring axial static rigidity of ball screw pair |
| CN103913384A (en) * | 2013-01-08 | 2014-07-09 | 陕西汉江机床有限公司 | Axial rigidity measuring apparatus of ball screw assembly |
| CN103674516A (en) * | 2013-11-18 | 2014-03-26 | 北京宇航系统工程研究所 | Low temperature stiffness measuring device and method of diaphragm capsule assembly for carrier rocket |
| CN103674516B (en) * | 2013-11-18 | 2016-01-13 | 北京宇航系统工程研究所 | A kind of carrier rocket capsule stack low temperature toughness measurement mechanism and measuring method |
| CN106442119A (en) * | 2016-10-09 | 2017-02-22 | 金华送变电工程有限公司 | Clamping arm lead screw tension grip |
| CN106501074A (en) * | 2016-10-09 | 2017-03-15 | 金华送变电工程有限公司 | Draw-in groove leading screw tension grip |
| CN108106799A (en) * | 2016-11-25 | 2018-06-01 | 上汽通用五菱汽车股份有限公司 | A kind of automatic buffer glue Static stiffness test device and its test method |
| CN108106799B (en) * | 2016-11-25 | 2024-03-15 | 上汽通用五菱汽车股份有限公司 | Automobile cushion gum static stiffness testing device and testing method thereof |
| CN113532854A (en) * | 2021-06-25 | 2021-10-22 | 北京机械设备研究所 | Axial loading testing device for ball screw pair |
| CN113532854B (en) * | 2021-06-25 | 2024-04-26 | 北京机械设备研究所 | Axial loading testing device for ball screw pair |
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Application publication date: 20110706 |