CN104723118B - A kind of machine tool guideway with pre-tightening apparatus and the pre-tension method for machine tool guideway - Google Patents
A kind of machine tool guideway with pre-tightening apparatus and the pre-tension method for machine tool guideway Download PDFInfo
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- CN104723118B CN104723118B CN201310717005.1A CN201310717005A CN104723118B CN 104723118 B CN104723118 B CN 104723118B CN 201310717005 A CN201310717005 A CN 201310717005A CN 104723118 B CN104723118 B CN 104723118B
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- bearing
- spline
- press strip
- plane
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- 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
- B23Q1/01—Frames, beds, pillars or like members; Arrangement of ways
- B23Q1/017—Arrangements of ways
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- Mechanical Engineering (AREA)
- Bearings For Parts Moving Linearly (AREA)
Abstract
The invention discloses a kind of machine tool guideway with pre-tightening apparatus and the pre-tension method for machine tool guideway, wherein, machine tool guideway includes：Slide carriage, linear bearing, bearing press strip, bearing spline and guide rail；Slide carriage is slidably connected at guide rail top, is provided with the jut for extending downwardly on the bottom surface of slide carriage, a side sliding contact of jut and guide rail, and linear bearing, bearing press strip and bearing spline may be contained within the lower section of slide carriage；One end of bearing press strip is fixed on the bottom surface of slide carriage, the other end is provided with adjustment flat board, bearing spline positioner is provided with adjustment flat board, and bearing press strip has press strip inclined-plane, bearing spline has the spline inclined-plane consistent with press strip slope, spline inclined-plane and the sliding contact of press strip inclined-plane, linear bearing are fixed on bearing spline, and side of the linear bearing with guide rail away from jut is in rolling contact.Machine tool guideway with pre-tightening apparatus of the invention can at any time adjust the size of pretightning force.
Description
Technical field
The present invention relates to machinery manufacturing technology field, more particularly, to a kind of machine tool guideway with pre-tightening apparatus and it is used for
The pre-tension method of machine tool guideway.
Background technology
In the prior art, the pretension of machine tool guideway is generally pure rigid pretension, and the pretightning force size of guide rail can not be adjusted,
With the extension of use time, mechanical wear constantly increases, and the pretensioning effect of guide rail can worse and worse, the machining accuracy of lathe
Decrease, so as to have a strong impact on the crudy of workpiece.
Therefore, the guide rail currently used for lathe is further improved.
The content of the invention
It is an object of the present invention to provide a kind of machine tool guideway with pre-tightening apparatus, it is intended to solve leading for lathe
The technical problem that rail pre-tightening apparatus can constantly be deteriorated with the extension of use time, pretensioning effect.
Another object of the present invention is to provide a kind of pre-tension method for machine tool guideway, it is intended to solve for lathe
The technical problem that the pretightning force size of guide rail can not be adjusted.
The present invention proposes a kind of machine tool guideway with pre-tightening apparatus, including：Slide carriage, linear bearing, bearing press strip, axle
Hold spline and guide rail；
The slide carriage is slidably connected at the guide rail top, and the projection for extending downwardly is provided with the bottom surface of the slide carriage
Portion, a side sliding contact of the jut and the guide rail, the linear bearing, the bearing press strip and the axle
Hold the lower section that spline may be contained within the slide carriage；
One end of the bearing press strip is fixed on the bottom surface of the slide carriage, and the other end is provided with adjustment flat board, the tune
Bearing spline positioner is provided with screed, and the bearing press strip has press strip inclined-plane,
The bearing spline has the spline inclined-plane consistent with the press strip slope, the spline inclined-plane and the pressure
The sliding contact of bar inclined-plane,
The linear bearing is fixed on the bearing spline, the side of the linear bearing and the guide rail away from jut
Face is in rolling contact.
Optionally, the bearing spline positioner includes stretching screw and Top fastening screw, is set on the adjustment flat board
There are Top fastening screw hole and stretching screw hole, the stretching screw passes through the stretching screw hole and one end and the bearing spline
Threaded connection, the Top fastening screw hole is screwed hole, the Top fastening screw through the Top fastening screw hole and one end with it is described
Bearing spline is contacted.
Optionally, the linear bearing is linear roller bearing.
Optionally, the guide rail is double guide rails, and the bottom surface both sides of the slide carriage are provided with the jut.
Optionally, feather key is provided with the spline inclined-plane, is provided with the press strip inclined-plane and the feather key phase
The gathering sill of cooperation.
Optionally, the gradient on the spline inclined-plane and the press strip inclined-plane is 1:30.
Optionally, it is provided with graduation mark on the spline inclined-plane and/or press strip inclined-plane.
Optionally, adjustment tank is provided with the press strip inclined-plane, disc spring is provided with the adjustment tank, in the adjustment tank
It is provided with disc spring outside disc spring to block up, outer end and spline contact of incline plane that the disc spring is blocked up.
Optionally, the bearing press strip is fixed by screws on the slide carriage bottom surface,
And/or,
The adjustment flat board is arranged on the bearing press strip by screw.
The invention allows for a kind of pre-tension method for machine tool guideway, the machine tool guideway has for above-described
The guide rail of pre-tightening apparatus, methods described includes：
Pretightning force is turned down：By tensing the stretching screw, make the spline inclined-plane of the bearing spline along the axle
The press strip inclined-plane of pressure-bearing bar slides in and out, and the pretightning force of guide rail diminishes；And
Pretightning force is tuned up：The Top fastening screw is held out against, makes the spline inclined-plane of the bearing spline along the bearing pressure
The press strip inclined-plane slid inward of bar, the pretightning force of guide rail becomes big.
Guide rail pre-tightening apparatus for lathe of the invention, what can be obtained actively has the technical effect that：Bearing spline
Positioner can tense bearing spline, drive spline inclined-plane to be slid in and out along the press strip inclined-plane of bearing press strip, linear bearing with
The distance between guide rail becomes big, and distance also becomes big between the jut of guide rail side adjacent thereto, and now, pretightning force diminishes, conversely,
Bearing spline positioner can hold out against bearing spline, drive spline inclined-plane along press strip inclined-plane slid inward, linear bearing with lead
The distance between rail diminishes, and distance also diminishes between the jut of guide rail side adjacent thereto, and pretightning force becomes big, by slide carriage and guide rail
Locking.Further, since spline inclined-plane is consistent with the gradient on press strip inclined-plane, therefore stability when can ensure to adjust.
Using the machine tool guideway with pre-tightening apparatus of the invention, guide rail pretightning force can be easily and quickly adjusted at any time
Size, even if with the extension of use time, there occurs the problem of such as mechanical wear, pretensioning effect will not also be deteriorated and
The machining accuracy of lathe will not be reduced, and thereby may be ensured that the crudy of workpiece, it is to avoid wastage of material.In addition, of the invention
The simple structure of the machine tool guideway with pre-tightening apparatus, easy to operate, cost is relatively low, so that of the invention with pre-tightening apparatus
Machine tool guideway range of application it is wider, practical value is bigger.
Brief description of the drawings
Of the invention above-mentioned and/or additional aspect and advantage will become from description of the accompanying drawings below to embodiment is combined
Substantially and be readily appreciated that, wherein：
Fig. 1 is the structural representation of the machine tool guideway with pre-tightening apparatus according to embodiments of the present invention；
Fig. 2 is that the plan structure of the pre-tightening apparatus of the machine tool guideway with pre-tightening apparatus according to embodiments of the present invention is illustrated
Figure.
Reference：
10- slide carriages；11- juts；20- linear bearings；30- bearing splines；40- bearing press strips；41- disc springs；42- disc springs
It is stifled；50- guide rails；60- adjusts flat board；70- stretching screws；80- Top fastening screws.
Specific embodiment
Describe the present invention in detail below with reference to accompanying drawing and in conjunction with the embodiments.It should be noted that not conflicting
In the case of, the feature in embodiment and embodiment in the application can be mutually combined, in addition, embodiment is exemplary, only
For explaining the present invention, and it is not considered as limiting the invention.
The embodiment provides a kind of guide rail pre-tightening apparatus for lathe, as depicted in figs. 1 and 2, including：Slip
Plate 10, linear bearing 20, bearing spline 30, bearing press strip 40 and guide rail 50；
The slide carriage 10 is slidably connected at the top of the guide rail 50, is provided with what is extended downwardly on the bottom surface of the slide carriage 10
Jut 11, a side sliding contact of the jut 11 and the guide rail 50, the linear bearing 20, the bearing pressure
Bar 40 and the bearing spline 30 may be contained within the lower section of the slide carriage 10；
One end of the bearing press strip 40 is fixed on the bottom surface of the slide carriage 10, and the other end is provided with adjustment flat board 60,
Bearing spline positioner is provided with the adjustment flat board 60, and the bearing press strip 40 has press strip inclined-plane,
The bearing spline 30 has the spline inclined-plane consistent with the press strip slope, the spline inclined-plane and described
The sliding contact of press strip inclined-plane,
The linear bearing 20 is fixed on the bearing spline 30, and the linear bearing 20 is with the guide rail 50 away from prominent
The side for playing portion 11 is in rolling contact.
It is used for the guide rail pre-tightening apparatus of lathe according to an embodiment of the invention, what can be obtained actively has the technical effect that：
Bearing spline positioner can tense bearing spline 30, drive spline inclined-plane outwards to be slided along the press strip inclined-plane of bearing press strip 40
Dynamic, the distance between linear bearing 20 and guide rail 50 become big, and distance also becomes big between the jut 11 of the side adjacent thereto of guide rail 50,
Now, pretightning force diminishes, conversely, bearing spline positioner can hold out against bearing spline 30, drives spline inclined-plane oblique along press strip
The distance between inward-facing slip, linear bearing 20 and guide rail 50 diminish, the spacing of the jut 11 of the side adjacent thereto of guide rail 50
From also diminishing, pretightning force becomes big, and slide carriage 10 is locked with guide rail 50.Further, since the gradient one on spline inclined-plane and press strip inclined-plane
Stability when causing, therefore can ensure to adjust.
Using the machine tool guideway with pre-tightening apparatus of the invention, guide rail pretightning force can be easily and quickly adjusted at any time
Size, even if with the extension of use time, there occurs the problem of such as mechanical wear, pretensioning effect will not also be deteriorated and
The machining accuracy of lathe will not be reduced, and thereby may be ensured that the crudy of workpiece, it is to avoid wastage of material.In addition, of the invention
The simple structure of the machine tool guideway with pre-tightening apparatus, easy to operate, cost is relatively low, so that of the invention with pre-tightening apparatus
Machine tool guideway range of application it is wider, practical value is bigger.
Embodiments in accordance with the present invention, optionally, the bearing spline positioner includes stretching screw 70 and holds out against spiral shell
Nail 80, Top fastening screw hole and stretching screw hole are provided with the adjustment flat board 60, and the stretching screw 70 passes through the tension
Screw hole and one end is threadedly coupled with the bearing spline 30, the Top fastening screw hole is screwed hole, the Top fastening screw 80
Contacted with the bearing spline 30 through the Top fastening screw hole and one end.Thus, when rotation Top fastening screw 80, Top fastening screw
80 can promote bearing spline 30 to move inward, and drive spline inclined-plane along press strip inclined-plane slid inward, linear bearing 20 and guide rail
The distance between 50 diminish, and distance also diminishes between the jut 11 of the side adjacent thereto of guide rail 50, and pretightning force becomes big, by slide carriage 10
Locked with guide rail 50, on the contrary, loosening, the Top fastening screw is after 80s, when rotation stretching screw 70, stretching screw 70 can be pulled
Bearing spline 30 is displaced outwardly, drive spline inclined-plane slid in and out along press strip inclined-plane, between linear bearing 20 and guide rail 50 away from
Big from becoming, distance also becomes big between the jut 11 of the side adjacent thereto of guide rail 50, and pretightning force diminishes, so that adjustment guide rail pretension
Power becomes very convenient, and operation is completed by only needing rotary screw.
Embodiments in accordance with the present invention, optionally, the linear bearing 20 is linear roller bearing, makes the carrying of guide rail 50
Ability is big, and sliding capability is more preferable.
Embodiments in accordance with the present invention, optionally, the guide rail 50 is double guide rails, and the bottom surface both sides of the slide carriage 10 are all provided with
It is equipped with the jut 11, it is ensured that it is more steady that slide carriage is slided.
Embodiments in accordance with the present invention, optionally, are provided with feather key on the spline inclined-plane, set on the press strip inclined-plane
It is equipped with the gathering sill being engaged with the feather key.Thus, it is possible to when ensureing to tense or hold out against the bearing spline 30, spline is oblique
Slidably more stablize in face.
Embodiments in accordance with the present invention, optionally, the gradient on the spline inclined-plane and the press strip inclined-plane is 1:30, from
And can greatly adjust the size of the pretightning force of guide rail 50.
Embodiments in accordance with the present invention, optionally, scale are provided with the spline inclined-plane and/or on the press strip inclined-plane
Line, such that it is able to quantitatively adjust the pretightning force of guide rail 50, is conducive to increasing the accuracy of the pretightning force size of guide rail 50 adjustment.
Embodiments in accordance with the present invention, optionally, are provided with adjustment tank on the press strip inclined-plane, set in the adjustment tank
There is disc spring 41, be provided with disc spring stifled 42, the outer end of the disc spring stifled 42 and spline contact of incline plane in the adjustment tank outside disc spring 41.
Thus, it is possible to ensure that the spline inclined-plane and the press strip inclined-plane are always maintained at Elastic Contact, guide rail pretightning force is advantageously implemented
Flexible adjustment.
Embodiments in accordance with the present invention, optionally, the bearing press strip 40 is fixed by screws in the bottom surface of the slide carriage 10
On,
And/or,
The adjustment flat board 60 is arranged on the bearing press strip 40 by screw.
Thus, installation, dismounting and position adjustment are very convenient.
The invention allows for a kind of pre-tension method for machine tool guideway, as depicted in figs. 1 and 2, the machine tool guideway
It is the above-described machine tool guideway with pre-tightening apparatus, methods described includes：
Pretightning force is turned down：By tensing the stretching screw 70, make the spline inclined-plane of the bearing spline 30 along institute
The press strip inclined-plane for stating bearing press strip 40 slides in and out, and the pretightning force of guide rail 50 diminishes；And
Pretightning force is tuned up：The Top fastening screw 80 is held out against, makes the spline inclined-plane of the bearing spline 30 along the axle
The press strip inclined-plane slid inward of pressure-bearing bar 40, the pretightning force of guide rail 50 becomes big.
Pre-tension method for machine tool guideway of the invention has that simple, convenient quick, pretensioning effect is good, lathe adds
The advantages of work precision will not be reduced, so that the application value of the guide rail pre-tension method for lathe of the invention is bigger.
It will be appreciated by persons skilled in the art that the feature being previously with regard to described by the machine tool guideway with pre-tightening apparatus
And effect, this is also applied for of course for the pre-tension method of machine tool guideway, repeat no more.
The preferred embodiments of the present invention are the foregoing is only, is not intended to limit the invention, for the skill of this area
For art personnel, the present invention can have various modifications and variations.It is all within the spirit and principles in the present invention, made any repair
Change, equivalent, improvement etc., should be included within the scope of the present invention.
Claims (8)
1. a kind of machine tool guideway with pre-tightening apparatus, it is characterised in that including：Slide carriage, linear bearing, bearing press strip, bearing
Spline and guide rail；
The slide carriage is slidably connected at the guide rail top, and the jut for extending downwardly, institute are provided with the bottom surface of the slide carriage
State a side sliding contact of jut and the guide rail, the linear bearing, the bearing press strip and the bearing wedge
Bar may be contained within the lower section of the slide carriage；
One end of the bearing press strip is fixed on the bottom surface of the slide carriage, and the other end is provided with adjustment flat board, and the adjustment is put down
Bearing spline positioner is provided with plate, and the bearing press strip has press strip inclined-plane,
The bearing spline has the spline inclined-plane consistent with the press strip slope, and the spline inclined-plane and the press strip are oblique
Face sliding contact,
The linear bearing is fixed on the bearing spline, and side of the linear bearing with the guide rail away from jut is rolled
Dynamic contact；
The bearing spline positioner includes stretching screw and Top fastening screw, and Top fastening screw hole is provided with the adjustment flat board
With stretching screw hole, the stretching screw passes through the stretching screw hole and one end is threadedly coupled with the bearing spline, institute
Top fastening screw hole is stated for screwed hole, the Top fastening screw passes through the Top fastening screw hole and one end connects with the bearing spline
Touch；
The guide rail is double guide rails, and the bottom surface both sides of the slide carriage are provided with the jut.
2. the machine tool guideway with pre-tightening apparatus according to claim 1, it is characterised in that the linear bearing is straight line
Roller bearing.
3. the machine tool guideway with pre-tightening apparatus according to claim 2, it is characterised in that set on the spline inclined-plane
There is feather key, the gathering sill being engaged with the feather key is provided with the press strip inclined-plane.
4. the machine tool guideway with pre-tightening apparatus according to claim 3, it is characterised in that the spline inclined-plane and described
The gradient on press strip inclined-plane is 1:30.
5. the machine tool guideway with pre-tightening apparatus according to claim 4, it is characterised in that on the spline inclined-plane and/
Or it is provided with graduation mark on the press strip inclined-plane.
6. the machine tool guideway with pre-tightening apparatus according to claim 5, it is characterised in that set on the press strip inclined-plane
There is adjustment tank, disc spring is provided with the adjustment tank, being provided with disc spring outside disc spring in the adjustment tank blocks up, and it is outer that the disc spring is blocked up
End and spline contact of incline plane.
7. the machine tool guideway with pre-tightening apparatus according to claim 6, it is characterised in that the bearing press strip passes through spiral shell
Nail is fixed on the slide carriage bottom surface,
And/or,
The adjustment flat board is arranged on the bearing press strip by screw.
8. a kind of pre-tension method for machine tool guideway, it is characterised in that the machine tool guideway is any in claim 1~7
The machine tool guideway with pre-tightening apparatus described in, methods described includes：
Pretightning force is turned down：By tensing the stretching screw, make the spline inclined-plane of the bearing spline along the bearing pressure
The press strip inclined-plane of bar slides in and out, and the pretightning force of guide rail diminishes；And
Pretightning force is tuned up：The Top fastening screw is held out against, makes the spline inclined-plane of the bearing spline along the bearing press strip
Press strip inclined-plane slid inward, the pretightning force of guide rail becomes big.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310717005.1A CN104723118B (en) | 2013-12-23 | 2013-12-23 | A kind of machine tool guideway with pre-tightening apparatus and the pre-tension method for machine tool guideway |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310717005.1A CN104723118B (en) | 2013-12-23 | 2013-12-23 | A kind of machine tool guideway with pre-tightening apparatus and the pre-tension method for machine tool guideway |
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| Publication Number | Publication Date |
|---|---|
| CN104723118A CN104723118A (en) | 2015-06-24 |
| CN104723118B true CN104723118B (en) | 2017-06-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310717005.1A Active CN104723118B (en) | 2013-12-23 | 2013-12-23 | A kind of machine tool guideway with pre-tightening apparatus and the pre-tension method for machine tool guideway |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108066090B (en) * | 2018-01-24 | 2020-09-15 | 迈柯唯医疗设备(苏州)有限公司 | Rotating mechanism of medical suspension bridge |
| CN109352352B (en) * | 2018-11-06 | 2024-01-12 | 宜昌长机科技有限责任公司 | Guide rail guiding and clamping composite device and use method |
| CN109514385B (en) * | 2019-01-03 | 2023-10-31 | 天润工业技术股份有限公司 | Auxiliary device for grinding points of rectangular guide rail |
| CN113245593B (en) * | 2021-04-16 | 2023-01-31 | 江苏东成工具科技有限公司 | Guide rail adjusting mechanism and magnetic drill with same |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1577935A1 (en) * | 1987-08-24 | 1990-07-15 | Специальное конструкторское бюро прецизионного станкостроения | Carriage for machine tool |
| CN2707423Y (en) * | 2004-06-25 | 2005-07-06 | 湖南沅江宇环实业有限公司 | Guide rail device of machine tool |
| CN201625869U (en) * | 2010-04-14 | 2010-11-10 | 徐州压力机械有限公司 | Slider locking device |
| CN201769060U (en) * | 2010-09-08 | 2011-03-23 | 河南森茂机械有限公司 | Hydraulic automatic locking device of guide rail |
| CN202028965U (en) * | 2011-04-20 | 2011-11-09 | 云南省机械研究设计院 | Compact and convenient linear guide rail clearance adjusting structure |
| CN202719993U (en) * | 2012-05-23 | 2013-02-06 | 苏州慧利仪器有限责任公司 | Linear guide rail locking structure |
| CN203696438U (en) * | 2013-12-23 | 2014-07-09 | 北京海普瑞森科技发展有限公司 | Machine tool slide guide with pre-tensioning device |
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2013
- 2013-12-23 CN CN201310717005.1A patent/CN104723118B/en active Active
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