CN110153735A - A kind of ball-screw workbench of adjustable preload - Google Patents
A kind of ball-screw workbench of adjustable preload Download PDFInfo
- Publication number
- CN110153735A CN110153735A CN201910519751.7A CN201910519751A CN110153735A CN 110153735 A CN110153735 A CN 110153735A CN 201910519751 A CN201910519751 A CN 201910519751A CN 110153735 A CN110153735 A CN 110153735A
- Authority
- CN
- China
- Prior art keywords
- nut seat
- ball
- screw
- double
- workbench
- 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
- 230000036316 preload Effects 0.000 title claims abstract description 12
- 230000007246 mechanism Effects 0.000 claims abstract description 44
- 238000009434 installation Methods 0.000 claims 1
- 230000005540 biological transmission Effects 0.000 abstract description 3
- 238000006073 displacement reaction Methods 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 2
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q1/00—Members which are comprised in the general build-up of a form of machine, particularly relatively large fixed members
- B23Q1/25—Movable or adjustable work or tool supports
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q11/00—Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling work; Safety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q5/00—Driving or feeding mechanisms; Control arrangements therefor
- B23Q5/22—Feeding members carrying tools or work
- B23Q5/34—Feeding other members supporting tools or work, e.g. saddles, tool-slides, through mechanical transmission
- B23Q5/38—Feeding other members supporting tools or work, e.g. saddles, tool-slides, through mechanical transmission feeding continuously
- B23Q5/40—Feeding other members supporting tools or work, e.g. saddles, tool-slides, through mechanical transmission feeding continuously by feed shaft, e.g. lead screw
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Transmission Devices (AREA)
Abstract
A kind of ball-screw workbench of adjustable preload, including three table mechanism, double nut seat mechanism and magnetostrictive mechanism parts, wherein table mechanism is fixed fixing end nut seat and to three rotary freedoms constraints of support end nut seat application and two except freedom of axial movement constrains, and guarantees can only there is axially opposing displacement between fixing end nut seat and support end nut seat；The double nut seat of double nut seat mechanism is restrained on the table, and double nut seat opposite face, which is respectively evenly distributed, to be used to place magnetostriction materials there are three hole, can be used for adjusting the preload between Double nuts of ball screw.This can adjust ball-screw preload for the table device that ball-screw pre-tightens in time, to improve the transmission accuracy of table device.
Description
Technical field
The present invention relates to a kind of ball-screw workbench, the workbench that especially adjustable ball screw assembly, pre-tightens.
Background technique
Ball-screw is robot and the mechanical most-often used actuated element of precision manufactureing, and major function is will to rotate fortune
Turn changes linear movement into, while having both high-precision, invertibity and efficient feature.
Ball-screw workbench traditional at present is difficult to realize the timely adjustment pre-tightened, will have a direct impact on ball-screw work
Make positioning or the transmission accuracy of platform.And traditional roller screw pre-tightening mechanism is all to act on roller screw double nut, by nut method
The limitation of blue disk size, can play that space is smaller, be not enough to put down more practical pre-tightening mechanism.
Summary of the invention
In order to overcome traditional ball-screw workbench be difficult to realize it is adjustable pre-tighten and can place pre-tightening mechanism space compared with
Small deficiency, the present invention provide a kind of ball-screw table device of adjustable preload.
The technical solution adopted by the present invention to solve the technical problems is:
A kind of ball-screw workbench of adjustable preload, including table mechanism, double nut seat mechanism and magnetostriction
Mechanism, double nut seat mechanism constrain on table mechanism, and magnetostrictive mechanism is mounted on double nut seat mechanism.
Table mechanism includes that table-top, column and bottom workbench, table-top are mounted on column, column
It is mounted on the workbench of bottom, guarantees have sufficient space that electromagnetic coil is installed between table-top and bottom workbench.
Double nut seat mechanism includes fixing end nut seat, support end nut seat, fixing end nut seat and support end nut seat
It respectively opens there are three longitudinal square hole and three lateral circular holes, circular hole bottom surface and the alignment of square hole side, square hole are vertical for placing
To magnetic yoke, circular hole is for placing magnetostriction materials.
Magnetostrictive mechanism includes lateral magnetic yoke, longitudinal magnetic yoke, magnetostriction materials, electromagnetic coil, and lateral magnetic yoke pierces into
Electromagnetic coil, longitudinal magnetic yoke pierce into the square hole of nut seat, and the circular hole that magnetostriction materials pass through nut seat withstands on longitudinal flux
On yoke, lateral magnetic yoke, longitudinal magnetic yoke, magnetostriction materials form a closed magnet circuit, and electromagnetic coil provides magnetic field.
The invention has the advantages that table mechanism can fix fixing end nut seat, the cunning on table mechanism
Dynamic pair slideway constrains support end base, and magnetostriction materials act between fixing end nut seat and support end nut seat, support
End nut seat can axially generate micro-displacement, it can be achieved that adjusting ball in time on the sliding pair slideway of table mechanism along lead screw
The preload of lead screw double nut.
Detailed description of the invention
Illustrate the embodiment of the present invention or certain schemes in the prior art in order to clearer, its attached drawing will be carried out below
It is simple to introduce, it is clear that, drawings in the following description are only some embodiments of the invention, skill common for this field
For art personnel, without creative efforts, it can also be obtained according to these attached drawings other accompanying drawings.
Fig. 1 is stereoscopic schematic diagram of the invention；
The axis that Fig. 2 is Fig. 1 surveys half-section diagram；
Fig. 3 is table mechanism schematic diagram of the invention；
Fig. 4 is double nut seat mechanism schematic diagram of the invention；
Fig. 5 is magnetostrictive mechanism schematic diagram of the invention.
Wherein, 1 table mechanism, 2 double nut seat mechanisms, 3 magnetostrictive mechanisms；101 table-tops, hexagonal in 102
Screw, 103 columns, 104 bottom workbench；201 fixing end nut seats, 202 support end nut seats, 203 soket head cap screws；301
Lateral magnetic yoke, the longitudinal direction 302-1,302-2,302-3,302-4,302-5,302-6 magnetic yoke, 303 magnetostriction materials, 304 magnetic
Yoke connector, 305 fixed magnetic yoke connectors, 306 cross recessed countersunk head sscrews, 307 Cross Recess Head Screws, 308 electromagnetic coils.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Whole description, those of ordinary skill in the art obtain every other embodiment under the premise of not making the creative labor,
It shall fall within the protection scope of the present invention.
As shown in Figure 1, this adjustable ball-screw workbench pre-tightened, including table mechanism (1), double nut base
Structure (2) and magnetostrictive mechanism (3), double nut seat mechanism (2) constrain on table mechanism (1), magnetostrictive mechanism (3)
It is mounted on double nut seat mechanism (2).
As shown in figure 3, table-top (101) is mounted on column (103) and is mounted on bottom with soket head cap screw (102)
On portion's workbench (104), guarantee have sufficient space that electromagnetic wire is installed between table-top (101) and bottom workbench (104)
It encloses (308).
As shown in Figure 2 and Figure 4, double nut seat mechanism (2) includes fixing end nut seat (201), support end nut seat (202)
With soket head cap screw (203), fixing end nut seat (201) is fixed on bottom workbench (104) with soket head cap screw (203),
Support end nut seat (202) is mounted on the V row track on bottom workbench (104), and is applied three rotary freedoms about
Beam and two constrain except freedom of axial movement, so that support end nut seat (202) can be in the V row of bottom workbench (104)
Micro-displacement is axially generated along lead screw on track, realizes the preload of adjustment Double nuts of ball screw in time.
As shown in Figure 2 and Figure 5, magnetostrictive mechanism (3) is stretched including lateral magnetic yoke (301), longitudinal magnetic yoke (302), mangneto
Compression material (303), magnetic yoke connector (304), fixed magnetic yoke connector (305), cross recessed countersunk head sscrew (306), cross slotted disk
Head screw (307), electromagnetic coil (308), lateral magnetic yoke (301) are pierced into electromagnetic coil (308), and longitudinal magnetic yoke (302) pierces into spiral shell
In the square hole of base, the circular hole that magnetostriction materials (303) pass through nut seat is withstood on longitudinal magnetic yoke (302), magnetic yoke connection
Head (304) and fixed magnetic yoke connector (305) connect lateral magnetic yoke (301) and longitudinal magnetic yoke (302), make itself and magnetostriction
Material (303) forms a closed magnet circuit, Cross Recess Head Screw (307) fixed lateral magnetic yoke (301) and longitudinal magnetic yoke
(302), electromagnetic coil (308) provides magnetic field, and electromagnetic coil (308) is fixed on bottom and worked by cross recessed countersunk head sscrew (306)
On platform (104).
The magnetic field of electromagnetic coil (308) can change with the variation of electrical current, and magnetic field is passed through lateral magnetic yoke
(301) it is acted on magnetostriction materials (303) with longitudinal magnetic yoke (302), magnetostriction materials (303) can be big according to magnetic field
Small variation elongates or shortens, and the power generated can act on longitudinal magnetic yoke (302) and indirectly-acting in fixing end nut seat
(201) it and on support end nut seat (202), is pre-tightened to achieve the effect that adjust in time.
Compared with existing traditional ball-screw workbench, the ball-screw workbench pre-tightened can adjust in the present invention,
Ball-screw preload can be adjusted, in time to improve transmission accuracy and axial rigidity.
Claims (2)
1. a kind of ball-screw workbench of adjustable preload, including table mechanism (1), double nut seat mechanism (2) and mangneto
Telescoping mechanism (3), it is characterized in that: double nut seat mechanism (2) constrains on table mechanism (1), magnetostrictive mechanism (3) installation
On double nut seat mechanism (2)；The table mechanism (1) includes table-top (101), column (103) and bottom work
Platform (104), table-top (101) are mounted on column (103), and column (103) is mounted on bottom workbench (104), are protected
There is sufficient space that electromagnetic coil (308) are installed between card table-top (101) and bottom workbench (104).
2. the ball-screw workbench according to claim 1 for a kind of adjustable preload, it is characterized in that: double spiral shells
Base mechanism (2) includes fixing end nut seat (201), support end nut seat (202), fixing end nut seat (201) and support end
Nut seat (202) is respectively opened there are three longitudinal square hole and three lateral circular holes, and circular hole bottom surface and square hole side are aligned, square hole
For placing longitudinal magnetic yoke (302), circular hole is for placing magnetostriction materials (303).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910519751.7A CN110153735A (en) | 2019-06-17 | 2019-06-17 | A kind of ball-screw workbench of adjustable preload |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910519751.7A CN110153735A (en) | 2019-06-17 | 2019-06-17 | A kind of ball-screw workbench of adjustable preload |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110153735A true CN110153735A (en) | 2019-08-23 |
Family
ID=67625733
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910519751.7A Pending CN110153735A (en) | 2019-06-17 | 2019-06-17 | A kind of ball-screw workbench of adjustable preload |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110153735A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08233060A (en) * | 1995-02-24 | 1996-09-10 | Kyushu Toshiba Kikai Kk | Ball screw device equipped with mechanism of fine displacement between double nuts |
| US20030094056A1 (en) * | 2001-11-20 | 2003-05-22 | Park Kyi Hwan | Anti-backlash screw and nut assembly |
| CN101862973A (en) * | 2010-06-17 | 2010-10-20 | 莱芜市数控机床研究所 | Roller screw pair for numerical control gantry machine tool |
| CN103934723A (en) * | 2014-04-23 | 2014-07-23 | 清华大学 | Controllable adjusting and measuring device of ball screw pretightening force and pretensioning amount |
| CN104565252A (en) * | 2015-01-30 | 2015-04-29 | 山东大学 | Dual-nut ball screw assembly with controllable pre-tightening force |
| CN104565253A (en) * | 2015-01-30 | 2015-04-29 | 山东大学 | Automatic pre-tightening device for double-nut ball screw pair |
| CN106230308A (en) * | 2016-09-05 | 2016-12-14 | 山东大学 | A kind of ball screw assembly, pretightning force TT&C system having from perceptive function and method |
| CN106884948A (en) * | 2017-04-06 | 2017-06-23 | 山东大学 | A kind of adjustable double nut ball screw assembly, of combined type pretightning force and installation method |
| CN210588146U (en) * | 2019-06-17 | 2020-05-22 | 鲁东大学 | Adjustable pretension's ball workstation |
-
2019
- 2019-06-17 CN CN201910519751.7A patent/CN110153735A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08233060A (en) * | 1995-02-24 | 1996-09-10 | Kyushu Toshiba Kikai Kk | Ball screw device equipped with mechanism of fine displacement between double nuts |
| US20030094056A1 (en) * | 2001-11-20 | 2003-05-22 | Park Kyi Hwan | Anti-backlash screw and nut assembly |
| CN101862973A (en) * | 2010-06-17 | 2010-10-20 | 莱芜市数控机床研究所 | Roller screw pair for numerical control gantry machine tool |
| CN103934723A (en) * | 2014-04-23 | 2014-07-23 | 清华大学 | Controllable adjusting and measuring device of ball screw pretightening force and pretensioning amount |
| CN104565252A (en) * | 2015-01-30 | 2015-04-29 | 山东大学 | Dual-nut ball screw assembly with controllable pre-tightening force |
| CN104565253A (en) * | 2015-01-30 | 2015-04-29 | 山东大学 | Automatic pre-tightening device for double-nut ball screw pair |
| CN106230308A (en) * | 2016-09-05 | 2016-12-14 | 山东大学 | A kind of ball screw assembly, pretightning force TT&C system having from perceptive function and method |
| CN106884948A (en) * | 2017-04-06 | 2017-06-23 | 山东大学 | A kind of adjustable double nut ball screw assembly, of combined type pretightning force and installation method |
| CN210588146U (en) * | 2019-06-17 | 2020-05-22 | 鲁东大学 | Adjustable pretension's ball workstation |
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