CN208374674U - A kind of device of precise straightening linear guide - Google Patents
A kind of device of precise straightening linear guide Download PDFInfo
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- CN208374674U CN208374674U CN201821016177.0U CN201821016177U CN208374674U CN 208374674 U CN208374674 U CN 208374674U CN 201821016177 U CN201821016177 U CN 201821016177U CN 208374674 U CN208374674 U CN 208374674U
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Abstract
The utility model discloses a kind of devices of precise straightening linear guide, belong to guide rail mounting technique field.It includes pedestal, linear guide, sliding block, marble leveling ruler, amesdial and guide rail swage；The marble leveling ruler is located at pedestal intermediate groove position；The upper surface of the pedestal is equipped with guide rail mounting surface；The linear guide is bolted on guide rail mounting surface；The sliding block is slidably connected in linear guide；The amesdial is connected to the top of sliding block；The guide rail swage includes eccentric axle bolt and jacking block；The side of the jacking block is butted on the outside of linear guide；The jacking block and pedestal is bolted by eccentric shaft；The utility model can solve the decline of linear guide installation accuracy, each axis blocks increase during exercise and move obstructed problem；Each long-term retentivity of operating shaft precision of lathe is improved, the demand of high speed and high-precision numerically-controlled machine tool is met.
Description
Technical field
The utility model belongs to guide rail mounting technique field, specifically, being related to a kind of dress of precise straightening linear guide
It sets.
Background technique
The linear guide of each axis is mounted on the mounting surface of linear guide on lathe using groups of form, and straight line is led
The installation accuracy of rail depends primarily on the straightness of installation linear guide and the depth of parallelism of two linear guides；Two linear guides
Mounting means is incorrect, and linear guide will generate retardance at work, influences transmission accuracy and positioning accuracy.Therefore, for wanting
The numerically-controlled machine tool of high speed and high-accuracy transmission is sought, the installation of linear guide is particularly important.Wherein, the number with high-accuracy transmission at a high speed
Control matching requirements of the lathe to linear guide are as follows: the depth of parallelism of the straightness of linear guide and two linear guides controls
Within 0.005mm.
The mounting means of linear guide at present: 1. are placed on linear guide on guide rail mounting surface, are led straight line with bolt
Rail is fixed on guide rail mounting surface；2. with linear guide briquetting by linear guide at the position of each linear guide upper bolt hole
It pushes up on linear guide lateral register face, is allowed to linear guide and is posted completely with linear guide lateral register face；3. again by straight line
Bolt presses defined torque on guide rail, and in order tightens linear guide.This mounting means major defect is: linear guide
Positioning surface precision be with machine tooling be unable to get, therefore process straightness, parallelism error directly duplicates arrive straight line
On guide rail, that is to say, that the installation accuracy of linear guide depends on the machining accuracy of guide rail mounting surface, and lathe machine tool is due to itself
It there is error, is shown when being processed to guide rail mounting surface by being processed the precision of guide rail mounting surface, and then straight
The mismachining tolerance of guide rail mounting surface is duplicated onto linear guide installation accuracy in line guide rail installation process；Therefore, it is difficult to manufacture
The numerically-controlled machine tool of high speed and high-accuracy transmission out.
In order to obtaining the linear guide of high installation accuracy, that is, by the flat of the straightness of linear guide and two guide rails
Row degree controls within 0.005mm, and the Chinese patent that China Patent No. is 201120096749.2, it discloses a kind of straight lines
Guide rail installs positioning mechanism, the positioning in guide rail screw and guide rail side locating slot including linear guide, on guide rail
Voussoir is structurally characterized in that: being constituted positioned at the guide rail other side and in pedestal installation base surface with corresponding guide rail installation base surface
Positioning colloid is filled in gap.The program is instead of traditional linear guide installation location technology and construction, and the technology is in number
It is applied in control internal and end surface grinder production, solves requirement of the processing base installation base surface in the process to technological equipment precision.But
It is that requirement of the program to positioning colloid is relatively high, and needs the timing replacement of multifrequency time, long-term retentivity is not high, increases peace
Dress up this and human cost；In addition, during installation, need to position after glue solidifies about 24 hours at room temperature, then pacified
A voussoir is set, installation and alignment time are considerably increased, installation alignment is inefficient, uses that there are inconveniences.
The for another example Chinese patent that China Patent No. is 201710736738.8, it discloses a kind of high-precision guide rail linearities
Calibration structure and its method, including pedestal, marble parallel rule, guide rail, sliding block, voussoir, withstanding tight block, adjusting screw and fixation
Screw, marble parallel rule are installed on the side of pedestal, the regulating tank that pedestal is provided with mounting groove and connect with mounting groove, guide rail
It is lock onto mounting groove by fixed screw, guide rail is tightly attached to the side wall of mounting groove, and sliding block is slideably positioned in guide rail, the top of sliding block
The amesdial for calibrating guide rail linearity is laid in portion, and voussoir and withstanding tight block are mounted in regulating tank, one end of withstanding tight block
Face contact is in guide rail, and for the other end contact of withstanding tight block in an end face of voussoir, the side of regulating tank is tightly attached in voussoir other end
Wall.The calibration structure is of less demanding to the face of keeping to the side of workpieces processing, and guide rail linearity can be indicated with data, wants suitable for precision
Seek high lathe.But when the linear guide for carrying out corresponding points position is adjusted, need the pine by adjusting adjusting screw
Tight degree rises or falls withstanding tight block, if adjusting screw is excessively loose, the precision that will lead to adjustment is lower, it cannot be guaranteed that directly
The each location point of line guide rail can obtain effectively being straightened adjustment, it is difficult to achieve the purpose that alignment, reliability is not high, and guide rail
It is tightly attached to the side wall of the mounting groove, this results in the range of adjustment cannot be excessive, cannot ensure each location point of linear guide
There can be enough spaces to be adjusted, it is also very high to the position requirement on machining accuracy of threaded hole, increase processing cost；Separately
Outside, the linear guide of each axis uses groups of installation form on lathe, and the program does not equal two linear guides
Row degree is controlled, therefore, solution not enough thoroughly.
Utility model content
1. to solve the problems, such as
, reliability not high for the long-term retentivity of precision of the existing technology it is not high and due to adjusting screw pine excessively and
The caused not high problem low with alignment adjustment validity of alignment Adjustment precision, the utility model provide a kind of precise straightening straight line
The device of guide rail solves the decline of linear guide installation accuracy, each axis blocks increase during exercise and moves obstructed ask
Topic；The long-term retentivity for improving each operating shaft precision of lathe meets the demand of the numerically-controlled machine tool of high speed and high-precision transmission,
Functional reliability is improved, the advantages that lathe is fast with response in high precision under quick operation can be given full play to.
2. technical solution
To solve the above-mentioned problems, technical solution used by the utility model is as follows:
A kind of device of precise straightening linear guide, including pedestal, linear guide and multiple guide rail swages；The bottom
The upper surface of seat is equipped with guide rail platform；The guide rail platform have guide rail mounting surface, with guide rail mounting surface is connected vertically leads
Rail lateral face；The linear guide is fixed on guide rail mounting surface；Multiple guide rail swages are arranged in linear guide
On the guide rail mounting surface in outside, and connect along the length direction of linear guide in a row；The guide rail swage includes eccentric adjusts
Save device and the jacking block with positioning surface；The eccentric governor makes the positioning face pressure of jacking block for driving jacking block horizontal displacement
Lateral surface that is tight or unclamping linear guide；There is gap between the medial surface and guide rail lateral face of the linear guide.
Preferably, eccentric governor is eccentric axle bolt comprising the axis of head sections and spiro rod section, head sections and spiro rod section
Line has eccentricity；The jacking block is equipped with centre bore；The bias axle bolt penetrates the centre bore of jacking block, head sections and center
Hole matches, and spiro rod section is screwed into the threaded hole on guide rail mounting surface.
Preferably, there are the gaps of 2~2.6mm between linear guide and guide rail lateral face.
Preferably, guide rail platform is two, is located at the opposite two sides of pedestal；It is set between two guide rail platforms
It is equipped with marble leveling ruler.
Preferably, the both ends of marble leveling ruler respectively pass through a contour pad and are supported, and keep horizontal.
Preferably, the marble leveling ruler two sides opposite with guide rail platform are detection faces；The detection faces and guide rail are lateral
Face is parallel.
Preferably, the head sections of eccentric axle bolt have quadrangle counter sink or hexagonal counter sink.
Preferably, sliding block is provided in linear guide；Amesdial is equipped with by magnet stand on the sliding block.
A kind of application method of precise straightening linear guide rail device, the steps include:
One, prepare before alignment: using the rear and front end of guide rail lateral face as basic point, with amesdial to the both ends of marble leveling ruler
Position is calibrated, so that the detection faces of marble leveling ruler are substantially parallel with guide rail lateral face；
Two, alignment process:
A. linear guide is placed on guide rail mounting surface, linear guide is pre-tightened with bolt and is fixed, guarantee linear guide
Gap between guide rail lateral face is about in 2mm；
B. sliding block is provided in linear guide；Amesdial is equipped with by magnet stand on sliding block；Make the measurement of amesdial
End contacts the detection faces of marble leveling ruler, and compresses；On the basis of the marble leveling ruler of correction, mobile sliding block, linear guide
Straightness error on various point locations is reflected by the numerical difference on amesdial；
C. the numerical difference of linear guide various point locations is straightened by straight wire rail swage, thousands of according to various point locations
The numerical value for dividing table to show, by twisting eccentric axle bolt, the positioning surface for adjusting jacking block compresses the tightness of linear guide, so that
For sliding block in various point locations in linear guide, pointer is directed at identical graduation always on amesdial；Again by fixed straight line guide rail
Pretension bolt tighten completely.
A kind of application method of the mounting and positioning device of linear guide, it is characterised in that: the guide rail platform is two,
The opposite two sides of pedestal are separately positioned on, two detection faces of the marble leveling ruler are parallel, with above-mentioned marble leveling ruler
On the basis of, repeat the linear guide that step a~c is accurately straightened the other side.
3. beneficial effect
Compared with the prior art, the utility model has the following beneficial effects:
(1) the special guide rail swage of one kind that the utility model uses, is passed through mutual by eccentric axle bolt and jacking block
Ingenious cooperation, can be realized the adjustment to linear guide various point locations, wherein spiro rod section on eccentric axle bolt passes through jacking block
Afterwards, it is connect by the threaded hole on pedestal with pedestal, head sections are located at the inside of the centre bore on jacking block, rotation eccentric axis spiral shell
The lateral displacement of jacking block can be realized in bolt, moreover, during the adjustment, can guarantee that eccentric axle bolt is in the state tightened,
Then in the case where rotating angle and being no more than 180 degree, realize the adjustment of maximum magnitude, machine tool chief axis during the work time, machine
The main reason for vibration that bed generates is the long-term retentivity reduction for leading to axis precision, when vibration is transmitted in linear guide, meeting
Coalignment is caused to start small vibration, if using traditional voussoir and the alignment fit structure held out against by adjusting tune
The scheme that the tightness of section screw is adjusted, adjustment adjusting screw pine excessively cause coalignment to start biggish vibration in turn
Dynamic, the offset deviation of generation is also larger；The voussoir used compared with prior art and the alignment fit structure held out against are by adjusting tune
The scheme that is adjusted of tightness of section screw, guide rail swage provided by the utility model can effectively avoid due to
The not high generation low with alignment adjustment validity of alignment Adjustment precision caused by adjusting screw pine excessively, in alignment adjustment process
In, the cooperation tightness of spiro rod section and threaded hole is almost unchanged, is capable of providing the very big holding power of jacking block, improves alignment and adjusts
The validity of whole precision and alignment adjustment；Solves the decline of linear guide installation accuracy, each axis blocks increase during exercise, movement
Obstructed problem meets the demand of the numerically-controlled machine tool of high speed and high-precision transmission, and during being straightened adjustment, control is eccentric
The spiro rod section of axle bolt and the offset direction of head sections and the angle of linear guide side will greatly improve machine near 90 degree
The long-term retentivity of each operating shaft precision of bed；
(2) the utility model is controlled by linear guide and guide rail lateral face gap in 2mm or more, can be avoided straight line
The precision of the positioning surface of guide rail directly duplicates the generation in linear guide due to mismachining tolerance, and provides sufficient school
Straight adjustment space, according to the deviation that various point locations in linear guide are shown in amesdial, is twisted partially in conjunction with guide rail swage
Mandrels bolt, and then linear guide various point locations are straightened, adjusting range is wide, clever structure, high reliablity；
(3) groups of installation form, the installation accuracy of linear guide are used on lathe due to the linear guide of each axis
Depend primarily on the straightness of installation linear guide, the depth of parallelism of two linear guides, and Dali used by the utility model
The opposite sides of stone leveling ruler is detection faces, parallel with guide rail lateral face, in the alignment adjustment for carrying out other side linear guide, together
Sample also improves the peace of two linear guides while the installation straightness for improving linear guide using the same benchmark
Fill the depth of parallelism；The decline of very good solution linear guide installation accuracy, each axis block increase during exercise, move obstructed ask
Topic, improves each long-term retentivity of operating shaft precision of lathe, meets high speed, the demand of high-precision numerically-controlled machine tool；
(4) the utility model is unified benchmark with marble leveling ruler in alignment process, every detection in linear guide
Data are shown by amesdial, then whole to every accurate adjustment by linear guide swage, to make two linear guides
Straightness, the depth of parallelism finally solve the problems, such as that linear guides with high precision installation is difficult within 0.005mm.
Detailed description of the invention
Fig. 1 is the top view of the utility model precise straightening linear guide rail device；
Fig. 2 is the cross-sectional view of A-A in the utility model precise straightening linear guide rail device Fig. 1；
Fig. 3 is the structural schematic diagram of guide rail swage in the utility model；
Fig. 4 is the top view of guide rail swage in the utility model；
Fig. 5 is the bottom view of guide rail swage in the utility model；
Fig. 6 is a kind of distribution schematic diagram of guide rail swage in the utility model.
In figure: 1, pedestal；101, guide rail mounting surface；102, guide rail lateral face；2, linear guide；3, sliding block；4, guide rail school
Straight device；401, eccentric axle bolt；402, jacking block；5, contour pad；6, marble leveling ruler；7, amesdial；8, magnet stand.
Specific embodiment
The utility model is further described below combined with specific embodiments below.
Embodiment 1
As shown in Fig. 1~5, a kind of device of precise straightening linear guide of the present embodiment mainly includes pedestal 1, straight line
Guide rail 2, multiple guide rail swages 4, marble leveling ruler 6, amesdial 7 and magnet stand 8.Wherein, pedestal 1 is used as basic component,
Other components are carried, which is provided with guide rail platform；The guide rail platform has guide rail mounting surface 101 and guide rail mounting surface
101 perpendicular guide rail lateral faces 102；The linear guide 2 is fixed on guide rail mounting surface 101；The linear guide 2
On be provided with sliding block 3；Amesdial 7 is equipped with by magnet stand 8 on the sliding block 3；Multiple 4 cloth of guide rail swage
It sets on the guide rail mounting surface 101 in the outside of linear guide 2, and connects along the length direction of linear guide 2 in a row；The guide rail
Swage 4 includes eccentric governor and the jacking block 402 with positioning surface；The eccentric governor is for driving 402 water of jacking block
Prosposition moves, and the positioning surface of jacking block 402 is made to compress or unclamp the lateral surface of linear guide 2；The medial surface of the linear guide 2 with lead
There is gap between rail lateral face 102；The peace of connection is adjacent to the side of existing preceding linear guide 2 and guide rail lateral face 102
Dress mode is compared, and the mismachining tolerance that can be avoided guide rail lateral face 102 is duplicated onto 2 installation accuracy of linear guide, and can
It drives driving jacking block 402 to generate horizontal displacement by eccentric governor, alignment adjustment is carried out to linear guide 2.
As seen in figures 3-5, the eccentric governor is eccentric axle bolt 401 comprising head sections and spiro rod section, head
The axis of section and spiro rod section has eccentricity；The head sections have quadrangle counter sink or hexagonal counter sink；To facilitate work
Make personnel and twists eccentric axle bolt 401 using tool；The jacking block 402 is equipped with centre bore；The bias axle bolt 401 penetrates
The centre bore of jacking block 402, head sections are matched with centre bore, and spiro rod section is screwed into the threaded hole on guide rail mounting surface 101.Pass through
Eccentric axle bolt 401, by mutual ingenious cooperation, can be realized the adjustment to 2 various point locations of linear guide with jacking block 402,
In, after the spiro rod section on eccentric axle bolt 401 passes through jacking block 402, it is connect by the threaded hole on pedestal 1 with pedestal 1, head sections
The lateral displacement of jacking block 402 can be realized in the inside of centre bore on jacking block 402, rotating eccentricity axle bolt 401, moreover,
During the adjustment, it can guarantee that eccentric axle bolt 401 is in the state tightened, then be no more than 180 degree in rotation angle
In the case of, realize the adjustment of maximum magnitude, during the work time, the vibration that lathe generates is to lead to the length of axis precision to machine tool chief axis
The main reason for phase retentivity reduces can cause coalignment to start small vibration when vibration is transmitted in linear guide 2,
If be adjusted using traditional voussoir and the alignment fit structure held out against by adjusting the tightness of adjusting screw
Scheme, adjustment adjusting screw pine excessively cause coalignment to start biggish vibration in turn, and the offset deviation of generation is also larger；It compares
What the alignment fit structure of voussoir and withstanding tight block that the prior art uses was adjusted by adjusting the tightness of adjusting screw
Scheme, guide rail swage 4 disclosed in the present embodiment are straightened caused by capable of effectively avoiding due to adjusting screw excessively pine and adjust
The not high generation low with alignment adjustment validity of whole precision, during being straightened adjustment, the cooperation of spiro rod section and threaded hole is elastic
Degree is almost unchanged, is capable of providing the very big holding power of jacking block 402, improves alignment Adjustment precision and is straightened the effective of adjustment
Property；The straightness for improving installation linear guide 2 meets the demand of the numerically-controlled machine tool of high speed and high-precision transmission, is being straightened
During adjustment, the spiro rod section of the eccentric axle bolt 401 of control and the offset direction of head sections and the angle of 2 side of linear guide exist
Near 90 degree, the long-term retentivity of each operating shaft precision of lathe will be greatly improved.
There are the gaps of 2~2.6mm between the linear guide 2 and guide rail lateral face 102；It can be avoided straight line to lead
The precision of the positioning surface of rail 2 directly duplicates the generation in linear guide due to mismachining tolerance, and provides sufficient school
Straight adjustment space, but can not be excessive, it is limited that existing structure designs reserved space, if the requirement of excessive needs to existing structure into
The large-scale change in design of row, increases unnecessary cost；In conjunction with guide rail swage 4, existed according to various point locations in linear guide 2
The deviation that amesdial is shown is twisted eccentric axle bolt 401, and then is straightened to 2 various point locations of linear guide, and model is adjusted
Enclose wide, clever structure, high reliablity.
The guide rail platform is two, is located at the opposite two sides of pedestal 1；It is equipped between two guide rail platforms recessed
Slot, the marble leveling ruler 6 are located at bottom portion of groove；The marble leveling ruler 6 two sides opposite with guide rail platform are detection
Face；The detection faces are parallel with guide rail lateral face 102；The both ends of the marble leveling ruler 6 respectively pass through a contour pad 5 into
Row support, and keep horizontal；Marble leveling ruler 6 is set to be in a suitable height, when measuring, marble leveling ruler 6
Measuring surface and the contact jaw of amesdial 7 have it is good contact, reduce measurement error.
Since the linear guide 2 of axis each on lathe uses groups of installation form, the installation of linear guide 2 on lathe
Precision depends primarily on the depth of parallelism of the straightness of installation linear guide 2, two linear guides 2, and the utility model is used
Marble leveling ruler 6 opposite sides be detection faces, it is parallel with guide rail lateral face 102, progress other side linear guide 2 school
When straight adjustment, two equally are also improved while the installation straightness for improving linear guide 2 using the same benchmark
The installation depth of parallelism of linear guide 2, the decline of very good solution linear guide 2 installation accuracy, each axis block increase during exercise,
Obstructed problem is moved, each long-term retentivity of operating shaft precision of lathe is improved, meets high speed, high-precision numerically-controlled machine tool
Demand.After above-mentioned mounting means, after being installed, through detecting, the straightness of two linear guides 2, the depth of parallelism point
Not within 0.005mm；Lathe after the high-intensitive continual work by 750 hour full and downs, main shaft
The variation of machining accuracy remains within 7%, meets the processing request of high precision machine tool always；Wherein, linear guide 2
Straightness and the depth of parallelism are held within 0.005mm, still meet the use demand of high speed and high-precision numerically-controlled machine tool；
Compared with prior art, each long-term retentivity of kinematic axis precision of lathe improves 36%, improves functional reliability.
Here be the straightness of single linear guide 2 and the depth of parallelism of two linear guides 2 are straightened it is specific
Operating instruction.
A kind of application method of precise straightening linear guide rail device, the steps include:
One, prepare before alignment: using the rear and front end of guide rail lateral face 102 as basic point, with amesdial 7 to marble leveling ruler 6
End positions calibrated, using the rear and front end of guide rail lateral face 102 as basic point, amesdial 7 is installed by magnet stand 8
On the front end of guide rail lateral face 102, makes the detection face contact of the measurement end and marble leveling ruler 6 of amesdial 7, record thousand points
The numerical value s1 of table 7, then amesdial 7 is mounted on the rear end of guide rail lateral face 102, make the measurement end and Dali of amesdial 7
The detection face contact of stone leveling ruler 6 adjusts marble leveling ruler 6, makes the numerical value and number of amesdial 7 according to the numerical value of record amesdial 7
Value s1 is consistent, and detection faces and the guide rail lateral face 102 of marble leveling ruler 6 are substantially parallel.
Two, alignment process: linear guide 2 is placed on guide rail mounting surface 101 by a., is pre-tightened linear guide 2 with bolt
It is fixed, guarantee that the gap between linear guide 2 and guide rail lateral face 102 about in 2~2.6mm, provides sufficient alignment adjustment
Space, but can not be excessive, it is limited that existing structure designs reserved space, if excessive needs require to carry out big model to existing structure
The change in design enclosed, increases unnecessary cost.
B. make the detection faces of the measurement end contact marble leveling ruler 6 of amesdial 7, and compress；It is flat with the marble of correction
On the basis of ruler 6, sliding block 3 is moved, straightness error of the linear guide 2 on various point locations is anti-by the numerical difference on amesdial 7
It mirrors and.
C. the numerical difference of 2 various point locations of linear guide is straightened by straight wire rail swage 4, according on various point locations
The numerical value that amesdial 7 is shown, by twisting eccentric axle bolt 401, the positioning surface for adjusting jacking block 402 compresses the pine of linear guide 2
Tight degree, so that sliding block 3, in various point locations in linear guide 2, pointer is directed at identical graduation always on amesdial 7；Again
The pretension bolt of fixed straight line guide rail 2 is tightened completely in order with defined torque.
D. on the basis of above-mentioned marble leveling ruler 6, the linear guide 2 that step a~c is accurately straightened the other side is repeated.
It can be seen that the application method of the present embodiment precise straightening linear guide rail device, can conveniently lead straight line
Rail is accurately installed, easy to operate.
In addition, according to the numerical value that amesdial 7 on various point locations is shown, passing through during being installed and being straightened adjustment
Eccentric axle bolt 401 is twisted, it is making positioning surface on jacking block 402 to tighten or adjust pine with the side of linear guide 2 exposure level top,
And then by the numerical difference accurate adjustment of the position in linear guide 2 in same numberical range；Then, to 2 the next position of linear guide
The installation error at place is calibrated, due to two guide rail swages 4 interfere with each other and the work of 2 internal stress of linear guide
With may generate error again at a upper position, therefore, return in linear guide 2 at a position, twist eccentric axle bolt
401 make the positioning surface on jacking block 402 continue to twist eccentric axle bolt 401 until jacking block 402 far from the direction movement of linear guide 2
On the positioning surface numerical difference accurate adjustment that the position goes out in linear guide 2 and linear guide 2 again in same numberical range, with this
Analogize, completes the installation error alignment that the position goes out in linear guide 2.
Embodiment 2
In the prior art, the installation accuracy of linear guide 2 is mainly to be improved by increasing the means of guide rail alignment point,
But will lead in this way production and processing cost it is relatively high, installation and alignment adjustment during it is comparatively laborious, needing will be to each
The coalignment of guide rail alignment point is adjusted, and considerably increases installation and alignment adjustment time, efficiency is relatively low, moreover, mistake
More coalignments can interfere with each other, and adjustment validity is lower, substantially increase time cost；But if coalignment
Layout density is too small, and with the work of the full and down of linear guide 2, during the work time, the vibration of generation can pass machine tool chief axis
When being delivered in linear guide 2, coalignment is caused to start flutter failure, the long-term retentivity of axis precision is difficult to ensure, reliability
It is lower；Therefore, in order to both can guarantee the installation accuracy of linear guide 2, guarantee the long-term retentivity of axis precision, improve reliability,
The time of installation alignment can be reduced again, improved installation effectiveness, become a urgent problem；And we pass through largely in fact
It issues after examination and approval now, if coalignment is unevenly arranged, unexpected effect can be played, machine tool chief axis during the work time, generates
Vibration be the main reason for causing the long-term retentivity of axis precision to reduce, vibration can cause school when being transmitted in linear guide 2
Straight device starts to vibrate, wherein due to middle section position exists and compares concentration residual stress, identical extent of vibration, directly
The flutter failure that the middle section position of line guide rail 2 generates is maximum, and middle section position, which needs to arrange that more coalignment is just able to satisfy, to be made
With demand, and during installation, if both ends only need cloth in the case that the alignment of 2 middle section position installation accuracy of linear guide is relatively good
Set less coalignment, it will be able to guarantee installation accuracy.Based on this, the present embodiment proposes a kind of wound of guide rail swage 4
Novel arrangement, as shown in fig. 6, the guide rail swage 4 be it is multiple, 2 middle position of linear guide is arranged in
Guide rail swage 4 is starting point, is unevenly arranged symmetrically along the length direction at 2 both ends of linear guide；Wherein, from linear guide 2
Centre to both ends, the spacing of two adjacent guide rail swages 4 is respectively d0、d1、d2......dn-1、dn, what they were formed
It is the equal difference ascending series of 2mm that ordered series of numbers, which is with tolerance, is straightened with the nearest two adjacent guide rails in 4 midpoint of guide rail swage
The spacing d of device 40For 10mm, their relationship meets: dn=10+2n.
Existing one tests lathe, and the linear guide 2 on main shaft is installed using the mounting means described in this implementation
Afterwards, through detecting, the straightness of two linear guides 2, the depth of parallelism are respectively in 0.003mm and 0.002mm；Substantially increase straight line
The installation accuracy of guide rail 2；After the strength test of continuous 750 hour full and downs, the straight line on the machine tool chief axis is led
The straightness and parallelism detection of rail 2, find the straightness of two linear guides 2, the depth of parallelism be respectively in 0.004mm and
0.005mm, the installation accuracy of linear guide 2 still meet the use demand of high speed and high-precision numerically-controlled machine tool, ensure that
Each long-term retentivity of kinematic axis precision of lathe, and the installation alignment time is reduced to 3 hours from original or so 5 hours,
Greatly reduce the set-up time.
Those skilled in the art are it is to be appreciated that the present utility model is not limited to the above embodiments, above-mentioned implementation
It is the principles of the present invention described in example and specification, on the premise of not departing from the spirit and scope of the utility model,
The utility model also has various changes and improvements, these changes and improvements should all be fallen into claimed invention.
The protection scope of the present invention is defined by the appended claims and their equivalents.
Claims (8)
1. a kind of device of precise straightening linear guide, including pedestal (1) and linear guide (2)；The pedestal (1) is equipped with
Guide rail platform；The guide rail platform has guide rail mounting surface (101), the guide rail perpendicular with guide rail mounting surface (101) lateral
Face (102)；The linear guide (2) is fixed on guide rail mounting surface (101)；It is characterized by also including multiple guide rail schools
Straight device (4), multiple guide rail swages (4) are arranged on the guide rail mounting surface (101) on the outside of linear guide (2), and lead along straight line
The length direction of rail (2) connects in a row；The guide rail swage (4) includes eccentric governor and the jacking block with positioning surface
(402)；The eccentric governor makes the positioning surface of jacking block (402) compress or unclamp for driving jacking block (402) horizontal displacement
The lateral surface of linear guide (2)；There is gap between the medial surface and guide rail lateral face (102) of the linear guide (2).
2. a kind of device of precise straightening linear guide according to claim 1, it is characterised in that: the eccentric adjusting
Device is eccentric axle bolt (401) comprising the axis of head sections and spiro rod section, head sections and spiro rod section has eccentricity；It is described
Jacking block (402) be equipped with centre bore；The bias axle bolt (401) penetrates the centre bore of jacking block (402), head sections and centre bore
It matches, spiro rod section is screwed into the threaded hole on guide rail mounting surface (101).
3. a kind of device of precise straightening linear guide according to claim 1, it is characterised in that: the linear guide
(2) there are the gaps of 2~2.6mm between guide rail lateral face (102).
4. a kind of device of precise straightening linear guide according to claim 1, it is characterised in that: the guide rail platform
It is two, is located at the opposite two sides of pedestal (1)；Marble leveling ruler (6) are provided between two guide rail platforms.
5. a kind of device of precise straightening linear guide according to claim 4, it is characterised in that: the marble is flat
The both ends of ruler (6) respectively pass through a contour pad (5) and are supported, and keep horizontal.
6. a kind of device of precise straightening linear guide according to claim 4, it is characterised in that: the marble is flat
Ruler (6) two sides opposite with guide rail platform are detection faces；The detection faces are parallel with guide rail lateral face (102).
7. a kind of device of precise straightening linear guide according to claim 2, it is characterised in that: the eccentric shaft spiral shell
The head sections of bolt (401) have quadrangle counter sink or hexagonal counter sink.
8. a kind of device of precise straightening linear guide described according to claim 1~any one of 7, it is characterised in that:
Sliding block (3) are provided in the linear guide (2)；Amesdial is installed by magnet stand (8) on the sliding block (3)
(7)。
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821016177.0U CN208374674U (en) | 2018-06-29 | 2018-06-29 | A kind of device of precise straightening linear guide |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201821016177.0U CN208374674U (en) | 2018-06-29 | 2018-06-29 | A kind of device of precise straightening linear guide |
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| CN208374674U true CN208374674U (en) | 2019-01-15 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113059342A (en) * | 2021-05-10 | 2021-07-02 | 广东海思智能装备有限公司 | X-axis rail of numerically controlled lathe and assembly process thereof |
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2018
- 2018-06-29 CN CN201821016177.0U patent/CN208374674U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113059342A (en) * | 2021-05-10 | 2021-07-02 | 广东海思智能装备有限公司 | X-axis rail of numerically controlled lathe and assembly process thereof |
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Effective date of registration: 20210525 Address after: 210000 building C17, No.9 Kechuang Avenue, Zhongshan Science Park, Liuhe District, Nanjing City, Jiangsu Province Patentee after: JIANGSU YUANLI AVIA PRECISION MACHINE TOOL Co.,Ltd. Address before: No. 1 Zidong Road, Qixia District, Nanjing City, Jiangsu Province Patentee before: JIANGSU YUANLI NUMERICAL CONTROL MACHINE TOOL Co.,Ltd. |