CN102788128A - High-speed ball screw pair with automatically adjustable pre-tightening force - Google Patents
High-speed ball screw pair with automatically adjustable pre-tightening force Download PDFInfo
- Publication number
- CN102788128A CN102788128A CN2012102341228A CN201210234122A CN102788128A CN 102788128 A CN102788128 A CN 102788128A CN 2012102341228 A CN2012102341228 A CN 2012102341228A CN 201210234122 A CN201210234122 A CN 201210234122A CN 102788128 A CN102788128 A CN 102788128A
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- China
- Prior art keywords
- nut
- seal ring
- cooling water
- screw pair
- ball screw
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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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Links
- 239000000498 cooling water Substances 0.000 claims abstract description 17
- 239000002826 coolant Substances 0.000 claims description 11
- 230000008878 coupling Effects 0.000 abstract 6
- 238000010168 coupling process Methods 0.000 abstract 6
- 238000005859 coupling reaction Methods 0.000 abstract 6
- 125000006850 spacer group Chemical group 0.000 abstract 2
- 230000009286 beneficial effect Effects 0.000 abstract 1
- 230000035611 feeding Effects 0.000 description 7
- 238000000034 method Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000004886 process control Methods 0.000 description 2
- 206010023230 Joint stiffness Diseases 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 230000009347 mechanical transmission Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Abstract
The invention discloses a high-speed ball screw pair with automatically adjustable pre-tightening force. The high-speed ball screw pair comprises a lead screw shaft, a cooling water inlet, a coupling flange, a seal ring A, a nut shaft sleeve, a nut A, a pre-tightening spacer, a nut B, a seal ring B, a giant magnetostrictive micro feed driver, a cooling water outlet, a seal ring C, a resistance strain gage, a cooler and balls, and is characterized in that the balls are placed among the lead screw shaft, the nut A and the nut B, wherein the seal ring B is arranged outside the nut B; the coupling flange is arranged outside the nut A; the cooling water inlet and the cooling water outlet are arranged outside the coupling flange; the cooler is connected with the cooling water inlet and the cooling water outlet; the giant magnetostrictive micro feed driver is arranged on the coupling flange; the seal ring A is arranged between the coupling flange and the nut shaft sleeve; the pre-tightening spacer is arranged between the nut A and the nut B; the resistance strain gage is arranged between the nut A and the nut B; and the seal ring C is arranged between the coupling flange and the nut A. The device has the beneficial effect of capability of realizing automatic pre-tightening of the high-speed ball screw pair.
Description
Technical field
The present invention relates to a kind of ball screw pair, is that the pretightening force of feed screw nut can self-regulating high speed ball screw pair specifically.
Background technique
Ball screw pair is the key feature that lathe and other machines are realized precision mechanical transmission, and the rigidity of ball screw pair and reliability are directly determining lathe or other machine overall performance.In process equipment, the application of high speed ball screw pair more and more widely, in and process equipment when work,, the lead screw pair temperature raises rapidly during high-speed working condition, the phenomenon of expanding with heat and contract with cold certainly will be brought the variation of feed screw nut rigidity.Traditional ball screw pair firmly beforehand means mainly contains screw regulating type, tooth difference pretension is transferred crack formula, gasket type pretension.These mode joint stiffnesses are higher relatively, and in actual production, are used widely, but in installation and using process, can't eliminate because the gap that wearing and tearing or resiliently deformable produce.Another kind of spring is adjusted prefastening automatically, eliminates axial clearances thereby generally use spring that two nuts are produced axial displacements, but this complex structure, axial rigidity are lower, and is not easy to grasp the distance of length of spring compressed when installing.Above high speed lead screw pair can be taken into account the factor of temperature variation when design, but makes troubles can for like this assembling and manufacturing, and can cause damage to equipment, influences machining accuracy.
Summary of the invention
To above-mentioned deficiency, the invention provides the self-regulating high speed ball screw pair of a kind of pretightening force.
The present invention realizes through following technological scheme: the self-regulating high speed ball screw pair of a kind of pretightening force; Form by lead screw shaft, cooling water intake, connecting flange, seal ring A, nut axle sleeve, nut A, tightening cushion, nut B, seal ring B, the little feeding driver of ultra mangneto, coolant outlet, seal ring C, strain gauge, Coolers, ball; It is characterized in that: ball is placed between lead screw shaft, nut A and the nut B; Seal ring B is placed on the outside of nut B, and connecting flange is installed in the outside of nut A, and cooling water intake, coolant outlet are arranged in the outside of connecting flange; Coolers links to each other with cooling water intake, coolant outlet; The little feeding driver of ultra mangneto is installed on the connecting flange, and seal ring A is installed between connecting flange and the nut axle sleeve, and tightening cushion is installed between nut A and the nut B; Strain gauge is installed between nut A and the nut B, and seal ring C is installed between connecting flange and the nut A.
The usefulness of this invention is to realize the automatic pretension of high speed ball screw pair.
Description of drawings
Fig. 1 position is a structural representation of the present invention.
Among Fig. 1,1, lead screw shaft, 2, cooling water intake, 3, connecting flange; 4, seal ring A, 5, the nut axle sleeve, 6, nut A, 7, tightening cushion; 8, nut B, 9, seal ring B, 10, the little feeding driver of ultra mangneto, 11, coolant outlet; 12, seal ring C, 13, strain gauge, 14, Coolers, 15, ball.
Embodiment
The self-regulating high speed ball screw pair of a kind of pretightening force; Formed by the little feeding driver of lead screw shaft 1, cooling water intake 2, connecting flange 3, seal ring A4, nut axle sleeve 5, nut A6, tightening cushion 7, nut B8, seal ring B9, ultra mangneto 10, coolant outlet 11, seal ring C12, strain gauge 13, Coolers 14, ball 15; It is characterized in that: ball 15 is placed between lead screw shaft 1, nut A6 and the nut B8; Seal ring B9 is placed on the outside of nut B8, and connecting flange 3 is installed in the outside of nut A6, and cooling water intake 2, coolant outlet 11 are arranged in the outside of connecting flange 3; Coolers 14 links to each other with cooling water intake 2, coolant outlet 11; The little feeding driver 10 of ultra mangneto is installed on the connecting flange 3, and seal ring A4 is installed between connecting flange 3 and the nut axle sleeve 5, and tightening cushion 7 is installed between nut A6 and the nut B8; Strain gauge 13 is installed between nut A6 and the nut B8, and seal ring C12 is installed between connecting flange 3 and the nut A6.
Working principle of the present invention is; Can record the size of ball screw pair pretightening force by strain gauge 13, and this signal sent into process control machine after through the A/D conversion carry out signal processing, after process control machine carries out judgment processing to signal; Export corresponding electric current; Thereby drive little feeding driver 10 feedings of ultra mangneto, promote nut A 6, thereby regulate the pretightening force of ball screw pair.The heat that the high speed lead screw pair produces outputs to Coolers 14 through coolant outlet 2, sends lead screw pair by the cold water of Coolers 14 outputs back to by cooling water intake 11.
Claims (1)
1. self-regulating high speed ball screw pair of pretightening force; Form by lead screw shaft, cooling water intake, connecting flange, seal ring A, nut axle sleeve, nut A, tightening cushion, nut B, seal ring B, the little feeding driver of ultra mangneto, coolant outlet, seal ring C, strain gauge, Coolers, ball; It is characterized in that: ball is placed between lead screw shaft, nut A and the nut B; Seal ring B is placed on the outside of nut B, and connecting flange is installed in the outside of nut A, and cooling water intake, coolant outlet are arranged in the outside of connecting flange; Coolers links to each other with cooling water intake, coolant outlet; The little feeding driver of ultra mangneto is installed on the connecting flange, and seal ring A is installed between connecting flange and the nut axle sleeve, and tightening cushion is installed between nut A and the nut B; Strain gauge is installed between nut A and the nut B, and seal ring C is installed between connecting flange and the nut A.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210234122.8A CN102788128B (en) | 2012-07-06 | 2012-07-06 | High-speed ball screw pair with automatically adjustable pre-tightening force |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210234122.8A CN102788128B (en) | 2012-07-06 | 2012-07-06 | High-speed ball screw pair with automatically adjustable pre-tightening force |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102788128A true CN102788128A (en) | 2012-11-21 |
| CN102788128B CN102788128B (en) | 2015-07-22 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210234122.8A Expired - Fee Related CN102788128B (en) | 2012-07-06 | 2012-07-06 | High-speed ball screw pair with automatically adjustable pre-tightening force |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102788128B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103009170A (en) * | 2012-12-19 | 2013-04-03 | 杭州三拓精密机械有限公司 | Air cooling mechanism for screw rod |
| CN103968024A (en) * | 2014-04-14 | 2014-08-06 | 北京工业大学 | Ball screw pair capable of automatically adjusting pretightening force |
| CN106767631A (en) * | 2017-02-14 | 2017-05-31 | 山东建筑大学 | The device and method of real-time detection double nut ball screw assembly, raceway wear-thickness |
| CN110542505A (en) * | 2019-09-29 | 2019-12-06 | 山东大学 | A ball screw pair friction torque measurement device, method and application |
| CN112643382A (en) * | 2020-12-07 | 2021-04-13 | 娄底鼎力液压科技有限公司 | Ball screw optimization structure of inclined rail numerical control lathe |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1446394A1 (en) * | 1987-07-01 | 1988-12-23 | Институт Технической Кибернетики Ан Бсср | Screw mechanism |
| CN1415872A (en) * | 2001-10-31 | 2003-05-07 | 上银科技股份有限公司 | Ball screw with cooling |
| CN200975457Y (en) * | 2006-12-01 | 2007-11-14 | 山东济宁博特精密丝杠有限公司 | High speed accurate ball guide-screw pair |
| TW200844349A (en) * | 2007-05-09 | 2008-11-16 | Hiwin Tech Corp | Roller screw with an adjustable preload device |
| CN201455680U (en) * | 2009-04-14 | 2010-05-12 | 武汉理工大学 | An ultra-precise micro-feed tool post |
-
2012
- 2012-07-06 CN CN201210234122.8A patent/CN102788128B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1446394A1 (en) * | 1987-07-01 | 1988-12-23 | Институт Технической Кибернетики Ан Бсср | Screw mechanism |
| CN1415872A (en) * | 2001-10-31 | 2003-05-07 | 上银科技股份有限公司 | Ball screw with cooling |
| CN200975457Y (en) * | 2006-12-01 | 2007-11-14 | 山东济宁博特精密丝杠有限公司 | High speed accurate ball guide-screw pair |
| TW200844349A (en) * | 2007-05-09 | 2008-11-16 | Hiwin Tech Corp | Roller screw with an adjustable preload device |
| CN201455680U (en) * | 2009-04-14 | 2010-05-12 | 武汉理工大学 | An ultra-precise micro-feed tool post |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103009170A (en) * | 2012-12-19 | 2013-04-03 | 杭州三拓精密机械有限公司 | Air cooling mechanism for screw rod |
| CN103968024A (en) * | 2014-04-14 | 2014-08-06 | 北京工业大学 | Ball screw pair capable of automatically adjusting pretightening force |
| CN103968024B (en) * | 2014-04-14 | 2016-08-10 | 北京工业大学 | A self-adjusting pretightening force ball screw pair |
| CN106767631A (en) * | 2017-02-14 | 2017-05-31 | 山东建筑大学 | The device and method of real-time detection double nut ball screw assembly, raceway wear-thickness |
| CN110542505A (en) * | 2019-09-29 | 2019-12-06 | 山东大学 | A ball screw pair friction torque measurement device, method and application |
| CN112643382A (en) * | 2020-12-07 | 2021-04-13 | 娄底鼎力液压科技有限公司 | Ball screw optimization structure of inclined rail numerical control lathe |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102788128B (en) | 2015-07-22 |
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| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150722 |