CN104179912A - Device for measuring ball movement state of ball screw pair - Google Patents
Device for measuring ball movement state of ball screw pair Download PDFInfo
- Publication number
- CN104179912A CN104179912A CN201410404227.2A CN201410404227A CN104179912A CN 104179912 A CN104179912 A CN 104179912A CN 201410404227 A CN201410404227 A CN 201410404227A CN 104179912 A CN104179912 A CN 104179912A
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- China
- Prior art keywords
- ball
- ball screw
- magnetic field
- screw nut
- screw pair
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
- G01M13/02—Gearings; Transmission mechanisms
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H25/00—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms
- F16H25/18—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms for conveying or interconverting oscillating or reciprocating motions
- F16H25/20—Screw mechanisms
- F16H25/22—Screw mechanisms with balls, rollers, or similar members between the co-operating parts; Elements essential to the use of such members
- F16H25/2204—Screw mechanisms with balls, rollers, or similar members between the co-operating parts; Elements essential to the use of such members with balls
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Transmission Devices (AREA)
- Force Measurement Appropriate To Specific Purposes (AREA)
Abstract
The invention discloses a device for measuring the ball movement state of a ball screw pair. The device comprises a ball screw, a lead screw nut, magnetic intensity measurement sensors, a sensor fixing device, and a ball with different magnetic intensity, to be specific, the lead screw nut and the ball screw are connected through the ball screw pair; the sensor fixing device is connected with and fixed in the outer circle of the lead screw nut in the circumferential direction through a bolt; the magnetic intensity measurement sensors are mounted on the sensor fixing device; the ball with the different magnetic intensity is mounted inside the rolling path of the lead screw nut. The device is simple and compact in structure, high in reliability and strong in operability; in addition, by mounting the sensor fixing device in an adjusting manner and mounting balls with different magnetic intensity on different ball screw pairs, the ball movement situations of different models of ball screw pairs can be measured to provide a theoretical basis for the design of lead screws.
Description
Technical field
The present invention relates to a kind of device of measuring ball screw pair ball moving state, belong to the technical field of ball screw pair ball moving control.
Background technique
Along with High Speed Computerized Numerical Control Machine Tools, precise treatment development, require also more and more higher to the precision stability of ball screw pair.In the precision stability problem of research ball screw pair, most importantly studying a question is the abrasion condition of lead screw pair, and its critical component is leading screw, nut and ball.Because the relative movement between leading screw and the nut of ball screw pair relies on Ball Transmission completely, and between leading screw and ball and between nut and ball, there is friction, the motion state of research ball, can help to verify frictional force and friction torque between leading screw and ball and between nut and ball, for the abrasion condition of analyzing ball screw pair provides theoretical foundation.For the motion state research of ball screw pair ball, scholar both domestic and external has carried out large quantity research, by literature search, not yet finds the device of measuring ball screw pair ball moving state.
Summary of the invention
Object of the present invention is in order to study the motion state of ball of ball screw pair, design the device of measuring ball screw pair ball moving state, by measuring the magnetic field change situation of ball in leading screw operation process, according to the conversion frequency in the rotating speed of leading screw and mensuration ball magnetic field, can calculate the working order (speed of ball, frictional force and friction torque) of ball.In order accurately to calculate ball working order, select under different operating modes, measure under different leading screw running speed the runnability of ball, according to the abrasion condition of the interpretation of result ball screw of measuring, for ball screw pair precision keeps providing theoretical foundation.
For achieving the above object, the technical solution used in the present invention is a kind of device of measuring ball screw pair ball moving state, and this device comprises ball screw, feed screw nut, magnetic intensity measuring transducer, sensor fastening device, contains the ball of different magnetic field intensity; Particularly, feed screw nut is connected by ball screw pair with ball screw, sensor fastening device be bolted be fixed on feed screw nut excircle to, described sensor fastening device and feed screw nut are joined with bolts the moving platform that forms this device, sensor fastening device can move along ball screw direction with feed screw nut, to prevent that ball screw rotation from destroying magnetic intensity measuring transducer; Magnetic intensity measuring transducer is arranged on sensor fastening device, and magnetic intensity measuring transducer according to the helix direction of feed screw nut and helical pitch distance on sensor fastening device along its axial and circumferential equidistant installation; The described ball containing different magnetic field intensity is arranged in the raceway of feed screw nut, and quantity is 1.
Compared with prior art, the present invention has following beneficial effect.
Than the device of current existing mensuration ball screw pair ball moving state, this apparatus structure is simple, compact, reliability is high, workable; And, by adjusting sensor installation fixing device and at different ball screw pairs, the ball containing different magnetic field intensity being installed, can measure the ball screw pair ball moving situation of different model, measure the runnability of the ball screw pair ball of different model, for design leading screw provides theoretical foundation.
Brief description of the drawings
Fig. 1 is the plan view that the present invention measures the device of ball screw pair ball moving state.
Fig. 2 is the A-A sectional view that the present invention measures the device of ball screw pair ball moving state.
In figure: 1, ball screw, 2, nut, 3, magnetic intensity measuring transducer, 4, sensor fastening device, 5, containing the ball of different magnetic field intensity.
Embodiment
Below in conjunction with accompanying drawing, technological scheme of the present invention is further illustrated.
As shown in Figure 1-2, a kind of device of measuring ball screw pair ball moving state, this device comprises ball screw 1, feed screw nut 2, magnetic intensity measuring transducer 3, sensor fastening device 4, contains the ball 5 of different magnetic field intensity; Particularly, feed screw nut 2 is connected by ball screw pair with ball screw 1, sensor fastening device 4 be bolted be fixed on feed screw nut 2 excircles to, described sensor fastening device 4 is joined with bolts with feed screw nut 2 moving platform that forms this device, sensor fastening device 4 can move along ball screw 1 direction with feed screw nut 2, to prevent that ball screw 1 rotation from destroying magnetic intensity measuring transducer 3; Magnetic intensity measuring transducer 3 is arranged on sensor fastening device 4, and magnetic intensity measuring transducer 3 axially and circumferentially equidistant is uniformly distributed installation along it according to the helix direction of feed screw nut 2 and helical pitch distance on sensor fastening device 4; The described ball 5 containing different magnetic field intensity is arranged in the raceway of feed screw nut, and quantity is 1.
For the motion state of Accurate Determining ball in feed screw nut raceway, need to process the ball 5 of an onesize outer surface containing different magnetic field intensity, replace a common ball of ball screw pair.Need to inlay in equal angles containing the magnetic pole on ball 5 peripheries of different magnetic field intensity, quantity is 4, 6 or 8 s' times magnetic pole, ball 5 containing different magnetic field intensity is put into ball screw pair together with all the other balls, along with the rotation of leading screw, ball 5 containing different magnetic field intensity turns round in raceway, collect field signal by magnetic intensity measuring transducer 3, due to ball wrapping wire thick stick rotation running in raceway, field signal is alternately to change, can calculate the operating condition of ball according to the rotating speed of leading screw and the frequency conversion that collects signal, for the design of ball screw pair is provided fundamental basis.
The described ball 5 containing different magnetic field intensity is inlayed a times field pole in decile angle, when ball moves in raceway, the signal difference that different motion state magnetic intensity measuring transducers 3 collects, due to the pole strength difference of inlaying, the signal intensity gathering in motion is also different, according to changes of magnetic field situation, can analyze the forms of motion of ball.There is frictional force because ball is on-stream, on-streamly have multi-form wearing and tearing, in conjunction with change of magnetic field strength situation after the wearing and tearing of ball, can provide theoretical foundation for ball screw pair precision stability.
Claims (3)
1. a device of measuring ball screw pair ball moving state, is characterized in that: this device comprises ball screw (1), feed screw nut (2), magnetic intensity measuring transducer (3), sensor fastening device (4), contains the ball (5) of different magnetic field intensity; Particularly, feed screw nut (2) is connected by ball screw pair with ball screw (1), sensor fastening device (4) be bolted be fixed on feed screw nut (2) excircle to, described sensor fastening device (4) is joined with bolts with feed screw nut (2) moving platform that forms this device, sensor fastening device (4) can be with feed screw nut (2) along the motion of ball screw (1) direction, to prevent that ball screw (1) rotation from destroying magnetic intensity measuring transducer (3); It is upper that magnetic intensity measuring transducer (3) is arranged on sensor fastening device (4), and magnetic intensity measuring transducer (3) axially and circumferentially equidistant is uniformly distributed installation along it according to the helix direction of feed screw nut (2) and helical pitch distance sensor fastening device (4) is upper; The described ball (5) containing different magnetic field intensity is arranged in the raceway of feed screw nut, and quantity is 1.
2. a kind of device of measuring ball screw pair ball moving state according to claim 1, it is characterized in that: for the motion state of Accurate Determining ball in feed screw nut raceway, need to process the ball (5) of an onesize outer surface containing different magnetic field intensity, replace a common ball of ball screw pair, need to inlay in equal angles containing the magnetic pole on ball (5) periphery of different magnetic field intensity, quantity is 4, 6 or 8 s' times magnetic pole, ball (5) containing different magnetic field intensity is put into ball screw pair together with all the other balls, along with the rotation of leading screw, ball (5) containing different magnetic field intensity turns round in raceway, collect field signal by magnetic intensity measuring transducer (3), due to ball wrapping wire thick stick rotation running in raceway, field signal is alternately to change, can calculate the operating condition of ball according to the rotating speed of leading screw and the frequency conversion that collects signal, for the design of ball screw pair is provided fundamental basis.
3. a kind of device of measuring ball screw pair ball moving state according to claim 1, it is characterized in that: the described ball (5) containing different magnetic field intensity is inlayed a times field pole in decile angle, when ball moves in raceway, the signal difference that different motion state magnetic intensity measuring transducers (3) collects, due to the pole strength difference of inlaying, the signal intensity gathering in motion is also different, according to changes of magnetic field situation, can analyze the forms of motion of ball.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410404227.2A CN104179912B (en) | 2014-08-15 | 2014-08-15 | A kind of device measuring ball screw assembly, ball moving state |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410404227.2A CN104179912B (en) | 2014-08-15 | 2014-08-15 | A kind of device measuring ball screw assembly, ball moving state |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104179912A true CN104179912A (en) | 2014-12-03 |
| CN104179912B CN104179912B (en) | 2016-08-17 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410404227.2A Expired - Fee Related CN104179912B (en) | 2014-08-15 | 2014-08-15 | A kind of device measuring ball screw assembly, ball moving state |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104179912B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108875226A (en) * | 2018-06-26 | 2018-11-23 | 北京工业大学 | A kind of ball screw assembly, random Wear Modeling method under dynamic fluctuation feeding speed conditions |
| CN109136885A (en) * | 2017-06-19 | 2019-01-04 | 北京北方华创微电子装备有限公司 | Coil regulating mechanism, induction heating apparatus and vapor deposition apparatus |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003075463A (en) * | 2001-09-05 | 2003-03-12 | Mitsubishi Heavy Ind Ltd | Three-dimensional movement measuring instrument for ball of ball screw |
| JP2005036906A (en) * | 2003-07-16 | 2005-02-10 | Nsk Ltd | Ball screw device |
| CN1699911A (en) * | 2004-05-21 | 2005-11-23 | 丰田自动车株式会社 | Position detecting apparatus for actuator and variable valve lift mechanism for internal combustion engine |
| JP2008536906A (en) * | 2005-04-22 | 2008-09-11 | サイメデイカ リミテツド | Oral hygiene composition |
| CN102261446A (en) * | 2010-05-13 | 2011-11-30 | 上银科技股份有限公司 | Transmission element with detection device |
| CN103174811A (en) * | 2013-01-22 | 2013-06-26 | 北京工业大学 | Pretightening force fine adjusting type ball screw nut |
| CN103968024A (en) * | 2014-04-14 | 2014-08-06 | 北京工业大学 | Ball screw pair capable of automatically adjusting pretightening force |
-
2014
- 2014-08-15 CN CN201410404227.2A patent/CN104179912B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003075463A (en) * | 2001-09-05 | 2003-03-12 | Mitsubishi Heavy Ind Ltd | Three-dimensional movement measuring instrument for ball of ball screw |
| JP2005036906A (en) * | 2003-07-16 | 2005-02-10 | Nsk Ltd | Ball screw device |
| CN1699911A (en) * | 2004-05-21 | 2005-11-23 | 丰田自动车株式会社 | Position detecting apparatus for actuator and variable valve lift mechanism for internal combustion engine |
| JP2008536906A (en) * | 2005-04-22 | 2008-09-11 | サイメデイカ リミテツド | Oral hygiene composition |
| CN102261446A (en) * | 2010-05-13 | 2011-11-30 | 上银科技股份有限公司 | Transmission element with detection device |
| CN103174811A (en) * | 2013-01-22 | 2013-06-26 | 北京工业大学 | Pretightening force fine adjusting type ball screw nut |
| CN103968024A (en) * | 2014-04-14 | 2014-08-06 | 北京工业大学 | Ball screw pair capable of automatically adjusting pretightening force |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109136885A (en) * | 2017-06-19 | 2019-01-04 | 北京北方华创微电子装备有限公司 | Coil regulating mechanism, induction heating apparatus and vapor deposition apparatus |
| CN108875226A (en) * | 2018-06-26 | 2018-11-23 | 北京工业大学 | A kind of ball screw assembly, random Wear Modeling method under dynamic fluctuation feeding speed conditions |
| CN108875226B (en) * | 2018-06-26 | 2022-06-24 | 北京工业大学 | Ball screw pair random wear modeling method under dynamic fluctuation feeding rotating speed working condition |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104179912B (en) | 2016-08-17 |
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Granted publication date: 20160817 Termination date: 20200815 |