CN101462234B - Flexible feed screw apparatus - Google Patents
Flexible feed screw apparatus Download PDFInfo
- Publication number
- CN101462234B CN101462234B CN200710114539XA CN200710114539A CN101462234B CN 101462234 B CN101462234 B CN 101462234B CN 200710114539X A CN200710114539X A CN 200710114539XA CN 200710114539 A CN200710114539 A CN 200710114539A CN 101462234 B CN101462234 B CN 101462234B
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- China
- Prior art keywords
- screw
- screw rod
- fixed
- connecting plate
- flexible
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- Expired - Fee Related
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Abstract
The invention discloses a flexible screw rod device, which belongs to the field of machine tools. The flexible screw rod device is provided with a ball screw rod nut and is characterized in that the ball screw rod nut is fixed on a screw base, a bracket is fixed on a moving part, the screw base is connected to the bracket via a connecting plate, the bracket is fixed on the moving part, two pairs of center-adjustable bearings are arranged in the connecting plate, and a spring closing ring for a shaft is fixed in the center-adjustable bearings, the connecting plate is connected to the bracket through a positioning screw and allowance is remained. The flexible screw rod device effectively solves the problem of stress concentration of the screw rod caused by sagging, changes the rigid design of the former machine tool into flexible design, allows the screw rod to sag freely within a certain range, and relieves the stress concentration through the self-aligning bearing.
Description
Technical field
The present invention relates to machine tool field, is a kind of when improving existing ball-screw and doing platen etc. and execute transmission, make screw bear excessive support moment owing to amount of deflection is sagging, and lathe is out of shape the flexible filaments lever apparatus of the additional moment of generation.
Background technology
As everyone knows, the transmission of lathe such as numerical control mostly is the ball-screw transmission.Repeatedly lifting again when ball-screw is installed, the perpendicularity of adjustment and scraping ball-screw screw and nut seat, difficulty is bigger, in case parts generation thermal deformation then influences whole precision measure.Ball-screw is because two ends are fixed, and leading screw can be owing to gravity sag, and in running, screw has been born the support moment of the deformation plance generation of leading screw distortion, has aggravated these wearing and tearing to the structure pair.
Summary of the invention
In order to overcome the shortcoming of existing machine tool lead screw mounting structure, the invention provides the described problem of the automatic adaptive compensation background technology of a kind of energy, effectively solve leading screw because the device of the sagging additional stress that causes.
The present invention adopts following technical solution: be provided with ball-screw nut, it is characterized in that: ball-screw nut is fixed on the nut seat, support is fixed on the moving member, nut seat is connected by connecting plate with support, support is fixed on the moving member, and 2 pairs of self-aligning bearings are arranged in the connecting plate, is fixed with the axle spring collar in the self-aligning bearing, with dog screw connecting plate is connected with support, leaves surplus.
Beneficial effect of the present invention: effectively solve leading screw because the sagging stress that causes is concentrated, and this mechanism changes the rigid design of former lathe into flexible design, makes leading screw free within the specific limits sagging, and concentrate by the self-aligning bearing relieve stresses.
Description of drawings
The present invention is further described below in conjunction with drawings and Examples.
Fig. 1 is a structural representation of the present invention.
Fig. 2 is the vertical view of Fig. 1.
1. leading screws among the figure, 2. ball-screw nut, 3. nut seat, 4. connecting plate, 5. support, 6. lid, 7. soket head cap screw, 8. soket head cap screw, 9. soket head cap screw, 10. dog screw, 11. self-aligning bearings are used spring collar for 12., 13. straight pins.
The specific embodiment is provided with
Below in conjunction with the drawings and specific embodiments, the invention will be further described, to help to understand this
The content of invention.
In Fig. 1, Fig. 2, the ball-screw nut 2 of leading screw 1 utilizes connecting plate 4 to be connected with workbench nut seat 3, be rotary with soket head cap screw 7 on the ball-screw nut 2, regulate the position of connecting plate 4 and support 5 and nut seat 3 with self-aligning bearing 11, make this dissolve the extra additional moment that produces by various distortion with more freedom to the structure pair, reduce installation difficulty, limit the relative position of connecting plate 4 and support 5 with the dog screw on the support 5 10, support 5 is fixed with through soket head cap screw 9 and covers 6, and support 5 upper ends are fixed with soket head cap screw 8.Ball-screw nut is fixed on the nut seat 3, and support 5 is fixed on the moving member, and nut seat 3 is connected by connecting plate 4 with support 5.2 pairs of self-aligning bearings 11 are arranged in the connecting plate 4, be fixed with axle in the self-aligning bearing 11 with a spring collar 12, make leading screw 1 at XY, the XZ plane can trace movement; With dog screw 10 connecting plate 4 is connected with support 5, leaves surplus, make the leading screw 1 can be at XZ, trace movement in the XY plane, compensation is because " the other strength " that the morpheme error produces.In nut seat 3 upper ends keyway is arranged, setting circle pin 13 is arranged on moving member, nut seat 3 is not rotated.Effectively solve leading screw 1 because the device of the sagging additional stress that causes.This mechanism changes former rigid design into flexible design, allow leading screw 1 free within the specific limits sagging and the distortion.
Claims (1)
1. flexible feed screw apparatus, be provided with ball-screw nut, it is characterized in that: ball-screw nut is fixed on the nut seat, nut seat is connected by connecting plate with support, and support is fixed on the moving member, and 2 pairs of self-aligning bearings are arranged in the connecting plate, be fixed with the axle spring collar in the self-aligning bearing, position with self-aligning bearing adjusting connecting plate and support and nut seat is connected connecting plate with dog screw with support, leave surplus.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200710114539XA CN101462234B (en) | 2007-12-21 | 2007-12-21 | Flexible feed screw apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200710114539XA CN101462234B (en) | 2007-12-21 | 2007-12-21 | Flexible feed screw apparatus |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101462234A CN101462234A (en) | 2009-06-24 |
| CN101462234B true CN101462234B (en) | 2011-05-18 |
Family
ID=40803151
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200710114539XA Expired - Fee Related CN101462234B (en) | 2007-12-21 | 2007-12-21 | Flexible feed screw apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101462234B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104948694B (en) * | 2015-05-28 | 2017-05-10 | 广西防城港核电有限公司 | Precision drive lead screw flexible connecting pair and drive mechanism |
| CN105344864B (en) * | 2015-11-03 | 2018-09-14 | 重庆锐佳机械有限公司 | Improve the plate stamping machine of feed mechanism |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6186268B1 (en) * | 1998-01-20 | 2001-02-13 | Mitsuba Corporation | Electric power steering unit |
| CN2859068Y (en) * | 2005-11-22 | 2007-01-17 | 周金龙 | Bearing block component capable of trimming drive shaft displacement |
| CN201140337Y (en) * | 2007-12-21 | 2008-10-29 | 威海华东数控股份有限公司 | Flexible feed screw apparatus |
-
2007
- 2007-12-21 CN CN200710114539XA patent/CN101462234B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6186268B1 (en) * | 1998-01-20 | 2001-02-13 | Mitsuba Corporation | Electric power steering unit |
| CN2859068Y (en) * | 2005-11-22 | 2007-01-17 | 周金龙 | Bearing block component capable of trimming drive shaft displacement |
| CN201140337Y (en) * | 2007-12-21 | 2008-10-29 | 威海华东数控股份有限公司 | Flexible feed screw apparatus |
Non-Patent Citations (1)
| Title |
|---|
| 王福成.滚珠丝杠断裂原因分析.《设备管理与维修》.2005,(第8期),15-16. * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101462234A (en) | 2009-06-24 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| 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 | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110518 Termination date: 20121221 |