CN102069415A - High-rigidity and high-precision nut seat driving connection device - Google Patents
High-rigidity and high-precision nut seat driving connection device Download PDFInfo
- Publication number
- CN102069415A CN102069415A CN 201010601282 CN201010601282A CN102069415A CN 102069415 A CN102069415 A CN 102069415A CN 201010601282 CN201010601282 CN 201010601282 CN 201010601282 A CN201010601282 A CN 201010601282A CN 102069415 A CN102069415 A CN 102069415A
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- guide rail
- nut
- connecting plate
- lead screw
- precision
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- 230000008878 coupling Effects 0.000 claims description 9
- 238000010168 coupling process Methods 0.000 claims description 9
- 238000005859 coupling reaction Methods 0.000 claims description 9
- 238000005452 bending Methods 0.000 abstract description 4
- 238000005299 abrasion Methods 0.000 abstract 1
- 230000003044 adaptive effect Effects 0.000 abstract 1
- 230000003068 static effect Effects 0.000 abstract 1
- 230000033001 locomotion Effects 0.000 description 10
- 238000000034 method Methods 0.000 description 5
- 230000005540 biological transmission Effects 0.000 description 2
- 238000007667 floating Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
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Abstract
The invention discloses a high-rigidity and high-precision nut seat driving connection device for high-precision connection of a static pressure guide rail and a ball screw in a precision grinder. The device comprises a lead screw (6), a lead screw nut (4) matched with the lead screw (6), a nut connecting sleeve (5) connected with the nut (4), and a guide rail connecting plate (1) sleeved outside the nut connecting sleeve (5); and the periphery of the guide rail connecting plate (1) is provided with four same stop blocks (2), two same stop block covers (7), three rollers (3), (8) and (10) with same shapes and sizes and different functions fixed on the vertical surface of the lead screw (6), anti-rotating stop blocks (9) and (11) and a stop block connecting plate (12), wherein a line contact structure is adopted among the stop blocks, the rollers and the guide rail connecting plate. An anti-rotating roller (10) is linearly contacted with the anti-rotating stop blocks (9) and (11), gaps are formed between the anti-rotating roller (10) and the guide rail connecting plate (1) and the stop block connecting plate (12), and the axial direction of the lead screw (6) is provided with a gap; thrust stop rollers (3) and (8) are linearly contacted with the guide rail connecting plate (1) and the stop block covers (7), gaps are formed between the thrust stop rollers (3) and (8) and the two thrust stop blocks (2), and the radial direction of the lead screw (6) is provided with a gap. By adopting the structure, the device ensures axial rigidity, eliminates reverse clearance, can eliminate the influence of bending of the lead screw on the moving precision of a workbench, solves the problems that the nut and the lead screw have high abrasion, are not easy to adjust and are difficult to install, and is adaptive to the high-precision and high-rigidity processing requirements of the precision grinder.
Description
Affiliated technical field
The invention belongs to machine tool field, relate to a kind of nut jockey, particularly a kind ofly be used for high rigidity high accuracy nut seat and drive coupling arrangement.
Background technology
The feed mechanism of super-precision machine tools mainly is to adopt servomotor+ball-screw transmission.Ball-screw is the core component that motion is transmitted in the ultra-precision machine tool feed mechanism, and the ball-screw transmission is to the influence of working table movement linearity.The natural torsion distortion of ball-screw, and the round runout error of the installation diameter of axle double thread groove face axis of the run-out error of the lead screw shaft axis that produces in the manufacture process on the leading screw radial direction, leading screw etc., with making leading screw drive nut in rotation process workbench is applied round disturbance perpendicular to the leading screw axis, this disturbance is born by guide rail.Because the cause of workbench gravity, this disturbance will cause workbench generating period beat phenomenon in horizontal plane, will produce periodic dimple on the surface of the work that processes, and influence the surface quality of workpiece.Normally adopt the method that floating unit is installed between workbench at feed screw nut, reduce or eliminate the disturbance that leading screw flexural deformation causes.Floating unit can significantly reduce the influence of leading screw bending to the working table movement linearity.
Summary of the invention
The present invention proposes a kind of high rigidity high accuracy nut seat coupling arrangement, can eliminate the influence of leading screw bending to guide rail movement linearity, positioning accuracy, has solved the difficult problem that leading screw flexural deformation causes guide precision to reduce effectively.
The present invention is achieved by the following technical programs:
A kind of high rigidity high accuracy nut seat drives coupling arrangement, comprises leading screw, the feed screw nut that cooperates with described leading screw; Also comprise the nut adapter sleeve that is connected with nut and be enclosed within the outer guide rail splice of nut adapter sleeve; On the periphery of described guide rail splice, be provided with 4 identical blocks, 2 identical block lids, 3 geomery is identical but roller that function is different is fixed on the leading screw vertical plane, and 1 block connecting plate all adopts the line contact structures between above-mentioned described block and roller and the guide rail splice.The anti-rotation roller contacts with 2 anti-rotation block lines, and is gapped with guide rail splice, block connecting plate, upwards gapped in lead screw shaft; 2 roller step bearings contact with guide rail splice, block lid line, and are gapped with 2 thrust blocks, directly upwards gapped at leading screw.Guaranteed axial rigidity and eliminated backlass, feed screw nut workbench is relatively done plane motion flexibly in the cross section of leading screw, avoid the influence to the working table movement precision.
Owing to adopted technique scheme, high rigidity high accuracy nut seat provided by the invention drives coupling arrangement and has following beneficial effect:
Three rollers that the nut adapter sleeve is fixed on the leading screw vertical plane, wherein the anti-rotation roller is upwards gapped in lead screw shaft, prevents that feed screw nut from rotating, the active free degree of restriction feed screw nut; Roller step bearing is directly upwards gapped at leading screw, is the straight-line power part of push work platform; 3 different rollers of function guarantee feed screw nut translation within the specific limits, satisfy the requirement of precision grinder high manufacturing accuracy.
Description of drawings
The present invention is further described below in conjunction with drawings and Examples.
Fig. 1 is that nut seat of the present invention drives the subssembly drawing that coupling arrangement is used for high rigidity high accuracy feed screw nut.
Fig. 2 is the A-A cutaway view of Fig. 1.
Fig. 3 is that high rigidity high accuracy nut seat drives the stereogram that connects whole device.
The specific embodiment
With reference to Fig. 1～Fig. 3, nut seat provided by the invention drives coupling arrangement, comprises leading screw (6), the feed screw nut (4) that cooperates with described leading screw (6); Also comprise the nut adapter sleeve (5) that is connected with nut (4) and be enclosed within the outer guide rail splice (1) of nut adapter sleeve (5); On the periphery of described guide rail splice (1), be provided with 4 identical blocks (2), 2 identical block lids (7), 3 geomery is identical but roller (3), (8), (10) that function is different, anti-rotation block (9), (11), block connecting plate (12) all adopts the line contact structures between above-mentioned described block and roller and the guide rail splice.
With reference to Fig. 1, be fixedly connected between the guide rail bench of guide rail splice (1) and lathe, be fixedly connected between nut adapter sleeve (5) and the feed screw nut (4), nut adapter sleeve (5) is fixed with three rollers (3) on leading screw (6) vertical plane, (8), (10), wherein the line contact structures are adopted in anti-rotation roller (10) contact, with anti-rotation block (9), (11) line contact, with 2 sunk screws with anti-rotation block (9), (11) be fixed on the guide rail splice (1), block connecting plate (12) and anti-rotation block (9), (11) adopt holding screw to fix between, install when adjusting, unclamp the sunk screw on the guide rail splice (1) respectively, adjust anti-rotation roller (10) and anti-rotation block (9), (11) sunk screw is tightened in line contact; Adjust the degree of tightness of holding screw, block connecting plate (12) and anti-rotation block (9), (11) are adjusted on the plane, make the anti-rotation roller (10) and the gap of block connecting plate (12) and guide rail splice (1) adjust to the optimum position, guarantee axially to go up gapped at leading screw (6), feed screw nut (4) rotates during in case work, the active free degree of restriction feed screw nut.
With reference to Fig. 2, the line contact structures are all adopted in roller step bearing (3), (8), contact with guide rail splice (1), block lid (7) line, 2 thrust blocks (2), block lid (7) are the size match grindings according to roller step bearing (3), (8), guarantee axial rigidity and eliminate backlass; Adopt 2 holding screws that block lid (7) and 2 thrust blocks (2) are fixed on the guide rail splice (1), install when adjusting, unclamp the sunk screw on the block lid (7) respectively, the optimum position that adjustment roller step bearing (3), (8) contact with guide rail splice (1), block lid (7) line, tighten holding screw, roller step bearing (3), (8) and 2 thrust blocks (2) are gapped, and promptly roller step bearing is upwards gapped in leading screw (6) footpath, but the push work platform rectilinear motion.
With reference to Fig. 3, anti-rotation roller (10) is axially gone up gapped at leading screw (6), roller step bearing (3), (8) are upwards gapped in leading screw (6) footpath, like this feed screw nut (4) relatively workbench in the cross section of leading screw (6), do plane motion flexibly, guaranteed axial rigidity, effectively eliminate the influence that the leading screw bending brings: when leading screw (6) when flexural deformation is arranged, feed screw nut (4) and nut adapter sleeve (5) guide rail splice (1) are relatively done certain relative motion, thereby avoid the motion straightness of workbench is exerted an influence, guarantee the precision of processing.
Claims (2)
1. one kind is used for high rigidity high accuracy nut seat driving coupling arrangement, comprises leading screw (6), the feed screw nut (4) that cooperates with described leading screw (6); Comprise the nut adapter sleeve (5) that is connected with nut (4) and be enclosed within the outer guide rail splice (1) of nut adapter sleeve (5), it is characterized in that: on the periphery of described guide rail splice (1), be provided with 4 identical blocks (2), 2 identical block lids (7), 3 geomery is identical but roller (3), (8), (10) that function is different are fixed on leading screw (6) vertical plane, anti-rotation block (9), (11), block connecting plate (12) all adopts the line contact structures between above-mentioned described block and roller and the guide rail splice.
2. drive coupling arrangement according to the described nut seat of claim 1, it is characterized in that: anti-rotation roller (10) contacts with anti-rotation block (9) (11) line, and is gapped with guide rail splice (1), block connecting plate (12), axially goes up gapped at leading screw (6); Roller step bearing (3), (8) contact with guide rail splice (1), block lid (7) line, and are gapped with 2 thrust blocks (2), upwards gapped in leading screw (6) footpath.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010106012822A CN102069415B (en) | 2010-12-23 | 2010-12-23 | High-rigidity and high-precision nut seat driving connection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010106012822A CN102069415B (en) | 2010-12-23 | 2010-12-23 | High-rigidity and high-precision nut seat driving connection device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102069415A true CN102069415A (en) | 2011-05-25 |
| CN102069415B CN102069415B (en) | 2012-04-18 |
Family
ID=44028285
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010106012822A Expired - Fee Related CN102069415B (en) | 2010-12-23 | 2010-12-23 | High-rigidity and high-precision nut seat driving connection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102069415B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103495874A (en) * | 2013-09-27 | 2014-01-08 | 苏州凯欧机械科技有限公司 | Screw rod device of anti-lock precision workbench |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3665782A (en) * | 1970-09-04 | 1972-05-30 | Superior Electric Co | Nut support to accomodate misalignment |
| US3745840A (en) * | 1971-06-03 | 1973-07-17 | Traveling Nut Corp | Motion transmitting device |
| DE2409959A1 (en) * | 1973-03-07 | 1974-09-19 | Cit Alcatel | DEVICE FOR CONTINUOUS MOVEMENT OF A MECHANICAL ORGAN, AND MACHINERY EQUIPPED WITH IT |
| JPH0569263A (en) * | 1991-06-06 | 1993-03-23 | Hitachi Ltd | Reciprocating table |
| JPH05138484A (en) * | 1991-11-18 | 1993-06-01 | Yotaro Hatamura | Precision positioning fine moving feed device and system |
| CN2635277Y (en) * | 2003-08-13 | 2004-08-25 | 东莞市宝发机械有限公司 | Lead screw seat used on machining equipment |
-
2010
- 2010-12-23 CN CN2010106012822A patent/CN102069415B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3665782A (en) * | 1970-09-04 | 1972-05-30 | Superior Electric Co | Nut support to accomodate misalignment |
| US3745840A (en) * | 1971-06-03 | 1973-07-17 | Traveling Nut Corp | Motion transmitting device |
| DE2409959A1 (en) * | 1973-03-07 | 1974-09-19 | Cit Alcatel | DEVICE FOR CONTINUOUS MOVEMENT OF A MECHANICAL ORGAN, AND MACHINERY EQUIPPED WITH IT |
| JPH0569263A (en) * | 1991-06-06 | 1993-03-23 | Hitachi Ltd | Reciprocating table |
| JPH05138484A (en) * | 1991-11-18 | 1993-06-01 | Yotaro Hatamura | Precision positioning fine moving feed device and system |
| CN2635277Y (en) * | 2003-08-13 | 2004-08-25 | 东莞市宝发机械有限公司 | Lead screw seat used on machining equipment |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103495874A (en) * | 2013-09-27 | 2014-01-08 | 苏州凯欧机械科技有限公司 | Screw rod device of anti-lock precision workbench |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102069415B (en) | 2012-04-18 |
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Granted publication date: 20120418 |