CN102632399A - Screw rod supporting device on planer type milling machine with moving workbench - Google Patents
Screw rod supporting device on planer type milling machine with moving workbench Download PDFInfo
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- CN102632399A CN102632399A CN2012101199899A CN201210119989A CN102632399A CN 102632399 A CN102632399 A CN 102632399A CN 2012101199899 A CN2012101199899 A CN 2012101199899A CN 201210119989 A CN201210119989 A CN 201210119989A CN 102632399 A CN102632399 A CN 102632399A
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- screw rod
- leading screw
- workbench
- rollers
- support member
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Abstract
The invention discloses a screw rod supporting device on a planer type milling machine with a moving workbench. The screw rod supporting device comprises a mounting seat, a supporting piece, at least one pair of rollers and an elastic piece, wherein the mounting seat is fixed on a machine tool body; the supporting piece is arranged on the mounting seat in a manner of moving up and down; the rollers are arranged on the supporting piece, and the axle axes of the rollers can extend along the length direction of a screw rod; the elastic piece is arranged between the supporting piece and the mounting seat and can supply an upward elastic resetting force to the supporting piece, so that the circumferences of the rollers can be upwards pressed against the screw rod; the rollers are positioned in the middle of the screw rod or under a position close to the middle of the screw rod; the paired rollers are arranged longitudinally at an interval along the length direction of the screw rod; and the paired rollers are symmetrically arranged transversely according to an upright central line of the screw rod on an upright projection surface of the screw rod. Due to the elastic piece, the rollers elastically support the middle or the position close to the middle of the screw rod, so that bending and flexible deformation of the screw rod are reduced or eliminated; and furthermore, the positioning precision error of the motion of the workbench and the influence on the machining precision of a workpiece are reduced, the positioning precision of a machining shaft of a machine tool is improved, and the stability and the safety of running are improved.
Description
Technical field
the present invention relates to the screw lead supporting device on the movable workbench formula planer-type milling machine.
Background technology
in movable workbench formula planer-type milling machine, the type of drive of workbench divides ball-screw to drive and rack-and-pinion drives dual mode.In the ball-screw type of drive, the two ends of ball-screw all are arranged with bearing, and support through bearing block; The rotation of driven by servomotor leading screw; The nut of threaded engagement on leading screw can move forward and backward, and workbench and nut fix, and then realizes moving forward and backward of workbench.When the stroke that moves forward and backward when workbench is big; Then the length requirement of leading screw is very long, and suspending part branch makes the ball-screw mid portion produce downward bending because of deadweight causes the leading screw deflection deformation in the middle of the leading screw; Therefore can influence the stability of movable workbench; Reduce the steady of lathe operation, and cause the error of feed shaft mobile accuracy, so that the machining accuracy of workpiece is produced error.
Summary of the invention
thus the purpose of this invention is to provide through carrying out resiliency supported and reduce or eliminate the bending of leading screw and the screw lead supporting device of deflection deformation in the centre of leading screw or near position intermediate, this device can improve the positioning accuracy and the traveling comfort of machine tooling axle.
are for achieving the above object; The technical scheme that the present invention adopts is: the screw lead supporting device on a kind of movable workbench formula planer-type milling machine; Comprise lathe bed, can all be arranged on leading screw on the said lathe bed, can drive the nut that said leading screw motor rotating, threaded engagement fix on said leading screw and with said workbench at the workbench that moves on the said lathe bed, bearing that two ends all are arranged with bearing and two ends through bearing block; The length direction along continuous straight runs of said leading screw extends; Said screw lead supporting device also comprises the mount pad that is fixed on the said lathe bed, can be arranged on support member on the said mount pad up or down, be contained on the said support member and at least one pair of roller that the wheel axial line all extends along the length direction of said leading screw, be arranged on the elastic-restoring force that can provide this support member to make progress between said support member and the said mount pad and make the wheel side face of the said roller residence of can upwards conflicting state the elastic component of leading screw; Said at least one pair of roller all is positioned at the middle part of said leading screw or near under the pars intermedia bit position; Paired said roller is provided with before and after the length direction of said leading screw at interval; And on the vertical projection face of said leading screw, said one-tenth pair roller is symmetrical set according to the vertical center line of said leading screw.
preferably; Be fixed with inclined board on the said workbench that fixes with said nut; Be fixed with declined board on the said support member; The upper surface of this declined board rear and front end all has first guiding surface, thereby the lower surface of said inclined board rear and front end all has to match with said first guiding surface to be used at said nut band and presses down this first guiding surface when said workbench moves forward and backward and said support member guarantees second guiding surface that this workbench moves smoothly.
are because the utilization of technique scheme; The present invention compared with prior art has advantage: realize the centre of pair of rollers leading screw or near the resiliency supported of position intermediate through elastic component; The bending and the deflection deformation of leading screw have been reduced or eliminated like this; Reduced of the influence of the positioning accuracy sum of errors of movable workbench, improved the positioning accuracy of machine tooling axle, and increased traveling comfort and security the workpiece machining accuracy.
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Description of drawings
accompanying drawing 2 is a side-looking partial schematic sectional view of the present invention.
The specific embodiment
Structure of the present invention is further set forth below in conjunction with accompanying drawing in
.
referring to shown in Fig. 1-2, and on movable workbench formula planer-type milling machine, screw lead supporting device comprises lathe bed 1, workbench 2, leading screw 3, nut 6, motor 5, mount pad 7, support member 8, a pair roller 9, elastic component 10; The two ends of leading screw 3 all are arranged with bearing, and the bearing at leading screw 3 two ends all is arranged on the lathe bed 1 through bearing block 4, and leading screw 3 can rotate; The leading screw 3 of rotation drives through motor 5, and threaded engagement has nut 6 on the leading screw 3, and nut 6 fixes with workbench 2; Leading screw 3 rotations, nut 6 moves forward and backward along the length direction of leading screw 3, then realizes moving forward and backward of workbench 2; The length direction along continuous straight runs of leading screw 3 extends, and like Fig. 1, is fixed with mount pad 7 on the lathe bed 1; Can be provided with support member 8 up or down on the mount pad 7, the wheel axial line that a pair roller 9, one pair rollers 9 are housed on the support member 8 all extends along the length direction of leading screw 3; Between mount pad 7 and support member 8, be provided with elastic component 10, elastic component 10 can adopt helical spring, and this elastic component 10 can provide support the elastic-restoring force that part 8 makes progress; Make the wheel side face of the pair roller 9 on the support member 8 leading screw 3 of upwards conflicting; Like Fig. 1 and 2, a pair roller 9 all is positioned at the middle part of leading screw 3 or near under the pars intermedia bit position, this pair roller 9 is provided with before and after the length direction of leading screw 3 at interval; And on the vertical projection face of leading screw 3; Referring to Fig. 2, this pair roller 9 is symmetrical set according to the vertical center line of leading screw 3, and promptly this pair roller 9 can support leading screw 3 by left and right symmetrically.Carry out resiliency supported through the centre of 9 pairs of leading screws 3 of roller or near position intermediate; Can reduce or eliminate the bending and the deflection deformation of leading screw 3 like this; Thereby reduced the influence of positioning accuracy sum of errors that workbench 2 moves to the workpiece machining accuracy; Improve the positioning accuracy of machine tooling axle, and increase traveling comfort and security.
Mention above
, nut 6 can be with workbench 2 to move forward and backward along leading screw 3, in order to eliminate the obstruction that 9 pairs of workbench 2 of roller move; Perhaps the inconvenience (operation bidirectional roller 9 or mount pad 8 move to guarantee workbench 2 smoothly) in order to eliminate operation bidirectional is fixed with inclined board 11 on workbench 2, is fixed with declined board 12 on the support member 8; Referring to Fig. 1; The upper surface of these declivity 12 plate rear and front ends all has first guiding surface 13, and the lower surface of inclined board 11 rear and front ends all has second guiding surface 14 that matches with first guiding surface 13, is being with workbench 2 to move forward and backward at nut 6 like this; Come the middle part of leading screw 3 or during near the pars intermedia bit position; Second guiding surface 14 can press down first guiding surface 13, and the elastic resistance that makes support member 8 overcome elastic component 10 moves down, and is being with a pair roller 9 also to move down; Thereby guarantee that nut 6 and workbench 2 can move out the position that original roller 9 supports leading screw 3 automatically smoothly; After workbench 2 moved out the Support Position, second guiding surface 14 can break away from first guiding surface 13, under the elastic-restoring force effect of elastic component 10; Support member 8 is being with a pair roller 9 to rise, and realizes that a pair roller 9 supports leading screw 3 again.Strain through elastic component 10 realizes the resiliency supported to leading screw 3, reduces the bending and the deflection deformation of leading screw 3, has guaranteed the mobile accuracy and the stability of workbench 2.
according to the weight and the stroke of workbench 2, calculate the diameter and the length of the leading screw 3 that needs in practice; Thereby calculate the deflection deformation and the bending displacement amount of leading screw 3; Calculate the rigidity and the deflection of elastic component 10 again according to amount of bow and deflection deformation,, realize reducing or eliminating deflection deformation and the bending that leading screw causes according to the technical scheme of this patent; Reduce the crooked vibrations that produce of leading screw, guarantee the stability of lathe and the mobile accuracy of feed shaft.
Claims (2)
1. the screw lead supporting device on the movable workbench formula planer-type milling machine; Comprise lathe bed, can all be arranged on leading screw on the said lathe bed, can drive the nut that said leading screw motor rotating, threaded engagement fix on said leading screw and with said workbench at the workbench that moves on the said lathe bed, bearing that two ends all are arranged with bearing and two ends through bearing block; The length direction along continuous straight runs of said leading screw extends; It is characterized in that: said screw lead supporting device also comprises the mount pad that is fixed on the said lathe bed, can be arranged on support member on the said mount pad up or down, be contained on the said support member and at least one pair of roller that the wheel axial line all extends along the length direction of said leading screw, be arranged on the elastic-restoring force that can provide this support member to make progress between said support member and the said mount pad and make the wheel side face of the said roller residence of can upwards conflicting state the elastic component of leading screw; Said at least one pair of roller all is positioned at the middle part of said leading screw or near under the pars intermedia bit position; Paired said roller is provided with before and after the length direction of said leading screw at interval; And on the vertical projection face of said leading screw, said one-tenth pair roller is symmetrical set according to the vertical center line of said leading screw.
2. the screw lead supporting device on the movable workbench formula planer-type milling machine according to claim 1; It is characterized in that: be fixed with inclined board on the said workbench that fixes with said nut; Be fixed with declined board on the said support member; The upper surface of this declined board rear and front end all has first guiding surface, thereby the lower surface of said inclined board rear and front end all has to match with said first guiding surface to be used at said nut band and presses down this first guiding surface when said workbench moves forward and backward and said support member guarantees second guiding surface that this workbench moves smoothly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101199899A CN102632399A (en) | 2012-04-23 | 2012-04-23 | Screw rod supporting device on planer type milling machine with moving workbench |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101199899A CN102632399A (en) | 2012-04-23 | 2012-04-23 | Screw rod supporting device on planer type milling machine with moving workbench |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102632399A true CN102632399A (en) | 2012-08-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012101199899A Pending CN102632399A (en) | 2012-04-23 | 2012-04-23 | Screw rod supporting device on planer type milling machine with moving workbench |
Country Status (1)
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| CN (1) | CN102632399A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103394961A (en) * | 2013-07-19 | 2013-11-20 | 陈锐志 | Screw deformation and stress elimination device |
| CN103659409A (en) * | 2013-12-16 | 2014-03-26 | 上海电气集团股份有限公司 | Screw rod transmission structure for improving transmission accuracy |
| CN106975938A (en) * | 2017-05-24 | 2017-07-25 | 沈机集团昆明机床股份有限公司 | Without impact ballscrew auxiliary supporting device |
| CN110206780A (en) * | 2019-05-21 | 2019-09-06 | 威海华东数控股份有限公司 | Piston rod support device and lathe |
| WO2019237468A1 (en) * | 2018-06-12 | 2019-12-19 | 南通远大精密机械有限公司 | Faller gill groove milling machine workbench |
| CN110588048A (en) * | 2019-10-25 | 2019-12-20 | 重庆江东机械有限责任公司 | Supporting device for horizontal extruder core rod |
| CN110774039A (en) * | 2019-09-17 | 2020-02-11 | 浙江合奥机械科技有限公司 | Support arrangement based on lathe lead screw |
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| JP2003127044A (en) * | 2001-10-18 | 2003-05-08 | Nsk Ltd | Direct driven table device |
| CN101138827A (en) * | 2007-10-19 | 2008-03-12 | 大连机床集团有限责任公司 | Slender screw collapsed waist lifting mechanism |
| CN201405206Y (en) * | 2009-04-23 | 2010-02-17 | 汉川机床集团有限公司 | Auxiliary support device for super-length ball screw |
| CN201807932U (en) * | 2010-09-06 | 2011-04-27 | 宁波天瑞精工机械有限公司 | Machine lead screw supporting device |
| CN201807934U (en) * | 2010-09-21 | 2011-04-27 | 桂林机床股份有限公司 | Mechanical longitudinal support device for horizontal screw rod of machine tool |
| CN202162607U (en) * | 2011-06-28 | 2012-03-14 | 陕西汉江机床有限公司 | Super-long stroke precision transmission device |
| CN202607252U (en) * | 2012-04-23 | 2012-12-19 | 苏州江源精密机械有限公司 | Lead screw supporting device on worktable-movable type gantry milling machine |
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2012
- 2012-04-23 CN CN2012101199899A patent/CN102632399A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2003127044A (en) * | 2001-10-18 | 2003-05-08 | Nsk Ltd | Direct driven table device |
| CN101138827A (en) * | 2007-10-19 | 2008-03-12 | 大连机床集团有限责任公司 | Slender screw collapsed waist lifting mechanism |
| CN201405206Y (en) * | 2009-04-23 | 2010-02-17 | 汉川机床集团有限公司 | Auxiliary support device for super-length ball screw |
| CN201807932U (en) * | 2010-09-06 | 2011-04-27 | 宁波天瑞精工机械有限公司 | Machine lead screw supporting device |
| CN201807934U (en) * | 2010-09-21 | 2011-04-27 | 桂林机床股份有限公司 | Mechanical longitudinal support device for horizontal screw rod of machine tool |
| CN202162607U (en) * | 2011-06-28 | 2012-03-14 | 陕西汉江机床有限公司 | Super-long stroke precision transmission device |
| CN202607252U (en) * | 2012-04-23 | 2012-12-19 | 苏州江源精密机械有限公司 | Lead screw supporting device on worktable-movable type gantry milling machine |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103394961A (en) * | 2013-07-19 | 2013-11-20 | 陈锐志 | Screw deformation and stress elimination device |
| CN103394961B (en) * | 2013-07-19 | 2015-09-30 | 陈锐志 | A kind of leading screw distortion and stress eliminating device |
| CN103659409A (en) * | 2013-12-16 | 2014-03-26 | 上海电气集团股份有限公司 | Screw rod transmission structure for improving transmission accuracy |
| CN106975938A (en) * | 2017-05-24 | 2017-07-25 | 沈机集团昆明机床股份有限公司 | Without impact ballscrew auxiliary supporting device |
| WO2019237468A1 (en) * | 2018-06-12 | 2019-12-19 | 南通远大精密机械有限公司 | Faller gill groove milling machine workbench |
| CN110206780A (en) * | 2019-05-21 | 2019-09-06 | 威海华东数控股份有限公司 | Piston rod support device and lathe |
| CN110774039A (en) * | 2019-09-17 | 2020-02-11 | 浙江合奥机械科技有限公司 | Support arrangement based on lathe lead screw |
| CN110588048A (en) * | 2019-10-25 | 2019-12-20 | 重庆江东机械有限责任公司 | Supporting device for horizontal extruder core rod |
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Application publication date: 20120815 |