CN106838183A - A kind of ball screw assembly, of automatic compensation thermal deformation - Google Patents
A kind of ball screw assembly, of automatic compensation thermal deformation Download PDFInfo
- Publication number
- CN106838183A CN106838183A CN201710226487.9A CN201710226487A CN106838183A CN 106838183 A CN106838183 A CN 106838183A CN 201710226487 A CN201710226487 A CN 201710226487A CN 106838183 A CN106838183 A CN 106838183A
- Authority
- CN
- China
- Prior art keywords
- ball
- aramid fiber
- screw
- lead screw
- axial
- Prior art date
- 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.)
- Pending
Links
Classifications
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- 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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- 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
- F16H25/24—Elements essential to such mechanisms, e.g. screws, nuts
-
- 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
- F16H25/24—Elements essential to such mechanisms, e.g. screws, nuts
- F16H2025/249—Special materials or coatings for screws or nuts
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Transmission Devices (AREA)
Abstract
The invention discloses a kind of ball screw assembly, of automatic compensation thermal deformation, belong to advanced manufacture field.Together with ball-screw body passes through adhesives with aramid fiber.Along the upper holes drilled through in lead screw shaft axial direction of ball-screw body, arrangement aramid fiber is pasted by adhesive on the hole wall of through hole, make the direction of aramid fiber consistent with axially retaining for ball-screw body.Using negative expansion coefficient fibrous material, it is set to be heated jointly with lead screw shaft, the automatic axial expansion to lead screw shaft plays inhibition after being heated, without using control device, error caused by energy adaptive equalization lead screw shaft thermal expansion, improves the precision stability of ball screw assembly,.Although lead screw shaft perforate can have an impact to its bending stiffness and axial rigidity, the elastic modelling quantity of aramid fiber is larger, and the axial arranged of aramid fiber will improve its bending stiffness and axial rigidity, will not have an impact to its rigidity.
Description
Technical field
The present invention relates to a kind of ball screw assembly, of automatic compensation thermal deformation, belong to advanced manufacture field.
Background technology
With the extensive use of high speed machining, the linear velocity more and more higher of ball screw assembly, current linear velocity can
Up to 90~120m/min.In the process of running, due to ball screw assembly, and bearing ball and the high speed relative motion of raceway, rub
Wipe power acting and produce substantial amounts of heat, cause ball screw assembly, to produce thermal deformation and then produce mismachining tolerance.
There are some researches show thermal deformation errors account for the 30%~50% of overall error.This ratio can be high in Precision Machining
Up to 70%.For ball screw assembly, the axial deflection of its nut location leading screw of major concern in engineering.It is therefore necessary to
A kind of ball screw assembly, for compensating its axial deformation of design.Existing ball screw assembly, thermal distortion compensation technology predominantly stays in use
Set up in thermal deformation model and then the method that is compensated by digital control system.In existing technology, not yet have to mend automatically
Repay the ball screw assembly, of thermal deformation.
The content of the invention
The invention aims to compensating ball screw assembly, axial direction thermal deformation and improving its precision stability, for this is designed
A kind of ball screw assembly, that can automatically compensate thermal deformation.
To achieve the above object.The technical solution adopted by the present invention is：A kind of ball screw assembly, of automatic compensation thermal deformation,
Including：Ball-screw body (1), aramid fiber (2) and adhesive (3), ball-screw body (1) and aramid fiber (2) pass through
Adhesive (3) is bonded together.
Along the upper holes drilled through in lead screw shaft axial direction of ball-screw body (1), pasted by adhesive (3) on the hole wall of through hole
Arrangement aramid fiber (2), make the direction of aramid fiber (2) and ball-screw body (1) axially retains consistent.
When lead screw shaft expanded by heating, the same heating temperature of aramid fiber (2) is raised, and aramid fiber (2) is in length side
There is negative expansion coefficient upwards, it is heated and is shunk in length, and aramid fiber (2) elastic modelling quantity in the longitudinal direction is big,
So on the premise of the inwall of aramid fiber (2) and ball-screw body (1) is by adhesive (3) firm pasting, aramid fiber is fine
Dimension (2) can have big inhibition to ball-screw body (1) in axial thermal expansion.
Compared with prior art, the beneficial effects of the invention are as follows：Using negative expansion coefficient fibrous material, make itself and leading screw
Axle is heated jointly, and the automatic axial expansion to lead screw shaft plays inhibition after being heated, without using control device, can self adaptation benefit
Error caused by lead screw shaft thermal expansion is repaid, the precision stability of ball screw assembly, is improved.Although lead screw shaft perforate can bend to it
Rigidity and axial rigidity have an impact, but the elastic modelling quantity of aramid fiber is larger, and will to improve its curved for aramid fiber axial arranged
Stiffness and axial rigidity, will not have an impact to its rigidity.
Brief description of the drawings
Fig. 1 is the automatic compensation thermal deformation ball screw assembly, structural representation of apparatus of the present invention.
Fig. 2 is the automatic compensation thermal deformation ball-screw auxiliary structure mplifying structure schematic diagram of apparatus of the present invention.
In figure：1st, ball-screw body, 2, aramid fiber, 3, adhesive.
Specific embodiment
Below in conjunction with accompanying drawing 1-2, the present apparatus is further described.
Step 1：A through hole is made a call in axial direction along ball-screw body 1.
Step 2：Aramid fiber 2 is arranged in the axial direction of through-hole wall, between aramid fiber 2 and ball-screw body 1
Bonded by adhesive 3, meanwhile, make the length direction of aramid fiber 2 axial consistent with through hole.
Step 3：Nut is arranged in the lead screw shaft of ball-screw body 1.
Leading screw expanded by heating in the axial direction, because aramid fiber has negative expansion coefficient in the longitudinal direction, is being heated
When shrink, have the effect of " retracting " in the axial direction to leading screw, the thermal deformation of leading screw has been obtained automatic compensation.
A through hole is bored on the axial direction of ball-screw body 1, aramid fiber is arranged in the inwall of through hole, make fiber
Length direction with axially retain consistent.Because leading screw is in bending or axial push-pull, aramid fiber is elongated or shortens, and aramid fiber
The elastic modelling quantity of fiber is larger, so being fully able to compensate the loss of rigidity that ball-screw punching is produced.
Claims (4)
1. a kind of ball screw assembly, of automatic compensation thermal deformation, it is characterised in that：Including ball-screw body (1), aramid fiber
(2) and adhesive (3), ball-screw body (1) and aramid fiber (2) are bonded together by adhesive (3).
2. the ball screw assembly, of a kind of automatic compensation thermal deformation according to claim 1, it is characterised in that：Along ball-screw
The upper holes drilled through in lead screw shaft axial direction of body (1), arrangement aramid fiber (2) is pasted on the hole wall of through hole by adhesive (3), is made
The direction of aramid fiber (2) axially retains consistent with ball-screw body (1).
3. the ball screw assembly, of a kind of automatic compensation thermal deformation according to claim 1, it is characterised in that：When lead screw shaft is received
During thermal expansion, the same heating temperature of aramid fiber (2) is raised, and aramid fiber (2) has negative expansion system in the longitudinal direction
Number, it is heated and is shunk in length, and aramid fiber (2) elastic modelling quantity in the longitudinal direction is big, so in aramid fiber (2) and
The inwall of ball-screw body (1) is by the way that on the premise of adhesive (3) firm pasting, aramid fiber (2) can be to ball-screw sheet
Thermal expansion of the body (1) in axial direction has big inhibition.
4. the ball screw assembly, of a kind of automatic compensation thermal deformation according to claim 1, it is characterised in that：
Step 1：A through hole is made a call in axial direction along ball-screw body (1)；
Step 2：Arrange aramid fiber (2) in the axial direction of through-hole wall, aramid fiber (2) and ball-screw body (1) it
Between by adhesive (3) bond, meanwhile, make aramid fiber (2) length direction axial consistent with through hole；
Step 3：Nut is arranged in the lead screw shaft of ball-screw body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710226487.9A CN106838183A (en) | 2017-04-09 | 2017-04-09 | A kind of ball screw assembly, of automatic compensation thermal deformation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710226487.9A CN106838183A (en) | 2017-04-09 | 2017-04-09 | A kind of ball screw assembly, of automatic compensation thermal deformation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106838183A true CN106838183A (en) | 2017-06-13 |
Family
ID=59148050
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710226487.9A Pending CN106838183A (en) | 2017-04-09 | 2017-04-09 | A kind of ball screw assembly, of automatic compensation thermal deformation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106838183A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107725747A (en) * | 2017-10-13 | 2018-02-23 | 北京工业大学 | A kind of ball screw assembly, based on the compensation thermal deformation of small-sized refrigerator principle |
| CN110529575A (en) * | 2019-06-12 | 2019-12-03 | 北京工业大学 | A kind of high-speed ball screw pair thermal deformation suppressing method based on niti-shaped memorial alloy |
| CN113211160A (en) * | 2021-04-08 | 2021-08-06 | 北京工业大学 | Ball screw pair thermal deformation compensation system and method based on extreme gradient lifting |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0446251A (en) * | 1990-06-11 | 1992-02-17 | Tsugami Corp | Ball screw |
| JP2003281942A (en) * | 2002-03-25 | 2003-10-03 | Railway Technical Res Inst | Low thermal expansion wire shaped body |
| CN2591650Y (en) * | 2002-07-03 | 2003-12-10 | 财团法人工业技术研究院 | Optical communication temperature compensating apparatus |
| CN202964271U (en) * | 2012-12-04 | 2013-06-05 | 昆山帆牧欣数控科技有限公司 | Screw hollow oil cooling device |
-
2017
- 2017-04-09 CN CN201710226487.9A patent/CN106838183A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0446251A (en) * | 1990-06-11 | 1992-02-17 | Tsugami Corp | Ball screw |
| JP2003281942A (en) * | 2002-03-25 | 2003-10-03 | Railway Technical Res Inst | Low thermal expansion wire shaped body |
| CN2591650Y (en) * | 2002-07-03 | 2003-12-10 | 财团法人工业技术研究院 | Optical communication temperature compensating apparatus |
| CN202964271U (en) * | 2012-12-04 | 2013-06-05 | 昆山帆牧欣数控科技有限公司 | Screw hollow oil cooling device |
Non-Patent Citations (1)
| Title |
|---|
| 刘彦军等: "《论制天权》", 31 July 2003, 国防大学出版社 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107725747A (en) * | 2017-10-13 | 2018-02-23 | 北京工业大学 | A kind of ball screw assembly, based on the compensation thermal deformation of small-sized refrigerator principle |
| CN110529575A (en) * | 2019-06-12 | 2019-12-03 | 北京工业大学 | A kind of high-speed ball screw pair thermal deformation suppressing method based on niti-shaped memorial alloy |
| CN110529575B (en) * | 2019-06-12 | 2021-04-09 | 北京工业大学 | Method for inhibiting thermal deformation of high-speed ball screw pair based on nickel-titanium shape memory alloy |
| CN113211160A (en) * | 2021-04-08 | 2021-08-06 | 北京工业大学 | Ball screw pair thermal deformation compensation system and method based on extreme gradient lifting |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170613 |