CN101462234A - Flexible feed screw apparatus - Google Patents
Flexible feed screw apparatus Download PDFInfo
- Publication number
- CN101462234A CN101462234A CNA200710114539XA CN200710114539A CN101462234A CN 101462234 A CN101462234 A CN 101462234A CN A200710114539X A CNA200710114539X A CN A200710114539XA CN 200710114539 A CN200710114539 A CN 200710114539A CN 101462234 A CN101462234 A CN 101462234A
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- CN
- China
- Prior art keywords
- screw
- screw rod
- connecting plate
- flexible
- support
- 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.)
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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 screw rod and is characterized in that a screw of a screw rod is connected with a screw base on a working platform through a connecting plate; a self-aligning bearing is used to adjust the position of the connecting plate and a bracket and the screw base; and a positioning bolt on the bracket is used to limit the relative positions of the connecting plate and the bracket. 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 screw mandrel, it is characterized in that, the screw of leading screw utilizes connecting plate to be connected with the workbench nut seat, with the position of self-aligning bearing adjusting connecting plate and support and nut seat, limits the relative position of connecting plate and support with the dog screw on the support.
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. screw, 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
Below in conjunction with the drawings and specific embodiments, the invention will be further described, to help to understand content of the present invention.
In Fig. 1, Fig. 2, the screw 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 screw 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, reduce installation difficulty, limit the relative position of connecting plate 4 and support 5 with the dog screw on the support 5 10 the structure pair, 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, a kind of flexible feed screw apparatus is provided with screw mandrel, it is characterized in that: the screw of leading screw utilizes connecting plate to be connected with the workbench nut seat, with the position of self-aligning bearing adjusting connecting plate and support and nut seat, limits the relative position of connecting plate and support with the dog screw on the support.
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 true CN101462234A (en) | 2009-06-24 |
| CN101462234B 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) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105344864A (en) * | 2015-11-03 | 2016-02-24 | 重庆锐佳机械有限公司 | Panel punching machine with improved feed mechanism |
| 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 |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11198828A (en) * | 1998-01-20 | 1999-07-27 | Mitsuba Corp | Electric power steering device |
| 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
Cited By (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 |
| CN105344864A (en) * | 2015-11-03 | 2016-02-24 | 重庆锐佳机械有限公司 | Panel punching machine with improved feed mechanism |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101462234B (en) | 2011-05-18 |
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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 |