CN101987424B - Method for correcting oscillation angle of spindle body of numerical control machine - Google Patents
Method for correcting oscillation angle of spindle body of numerical control machine Download PDFInfo
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- CN101987424B CN101987424B CN200910055645A CN200910055645A CN101987424B CN 101987424 B CN101987424 B CN 101987424B CN 200910055645 A CN200910055645 A CN 200910055645A CN 200910055645 A CN200910055645 A CN 200910055645A CN 101987424 B CN101987424 B CN 101987424B
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Abstract
The invention provides a method for correcting an oscillation angle of a spindle body of a numerical control machine, which comprises the following steps of: providing a standard hole flat plate, wherein a central hole is formed on the standard hole flat plate, and a plurality of small holes are formed around the central hole serving as a circle centre at a certain rotation angle according to a certain radius; placing the standard hole flat plate on a workbench top of the numerical control machine and aligning the rotation centre of the spindle body with the central hole of the standard hole flat plate; rotating the spindle body, measuring and recording error values between the oscillation angle of the spindle body between hole segments and the positions of the small holes on the standard hole flat plate at certain rotation angle intervals, wherein the rotation angle corresponds to the interval angle between the positions of the small holes; and converting the error values into error compensation values of the oscillation angle of the spindle body between corresponding hole segments, so that the numerical control machine system can counteract the oscillation angle error of the spindle body in each corresponding oscillation angle range according to the error compensation value. In the invention, through technical improvement, a great amount of cost and time are saved, and a production process is guaranteed to be carried out orderly.
Description
Technical field
The present invention relates to Digit Control Machine Tool metal manufacture field, specifically, relate to a kind of pivot angle bearing calibration of main shaft of numerical control machine tool body.
Background technology
Development along with China's machine building industry and metal-processing industry; For machining accuracy of NC machine tool require increasingly high; And the employed main shaft (shown among Fig. 1 101) that main shaft is installed on it of Digit Control Machine Tool is owing to need frequently locate the position of the main shaft that runs up; Thereby it receives the restriction of service time, is a consumable accessory, often needs to change.
On the other hand, when assembling, also need carry out correction work after main shaft is changed, have enough positioning accuracies to guarantee it to the pivot angle error of main shaft in corresponding each pivot angle scope.
Be illustrated in figure 2 as the closely enlarged drawing of the main shaft 101 among Fig. 1, wherein 102 is the ram of Digit Control Machine Tool, can do level and smooth moving along vertical direction and fore-and-aft direction; 103 for to be installed on the main shaft on the main shaft 101, can under the location of main shaft 101, do rotation at a high speed; 104 is the work top of Digit Control Machine Tool, is fixed with workpiece on it; 105 is the column of Digit Control Machine Tool, is used for cantilevered supports main shaft body 101 and ram 102, and can do level and smooth moving along left and right directions with respect to work top 104.
Said pivot angle is meant that the main shaft of Digit Control Machine Tool centers on the angle that normal turned over perpendicular to this working face in each working face, be shown as main shaft 101 around the angle that normal turned over perpendicular to work top 104 in Fig. 2.
Normally, when the precision of the pivot angle of main shaft can't satisfy production requirement, just need change main shaft.Because the replacing of main shaft need be accomplished by supplier in principle, therefore the replacing of main shaft is all needed the expense and the great amount of time of both expensive at every turn.In addition, the process of being come the pivot angle of the main shaft after changing is proofreaied and correct by laser tracker in the prior art is more loaded down with trivial details, long and expensive consuming time, and these shortcomings have brought inconvenience all for the production process of reality.
Summary of the invention
The problem that the present invention solves provides a kind of pivot angle bearing calibration of main shaft of numerical control machine tool body, has reduced the replacing number of times of main shaft of numerical control machine tool body, has also simplified the process that the pivot angle after the main shaft of numerical control machine tool body is changed is proofreaied and correct in addition.
For addressing the above problem; The present invention provides a kind of pivot angle bearing calibration of main shaft of numerical control machine tool body, comprises step: provide gauge orifice system dull and stereotyped, be formed with centre bore on it; With the centre bore is the center of circle, around it, also is formed with a plurality of apertures with certain radius and every separated certain anglec of rotation; Gauge orifice system flat board is placed on the work top of Digit Control Machine Tool, the dull and stereotyped centre bore of main shaft pivot and gauge orifice system is aligned; The rotary main shaft body, every separated certain rotation angle measurement also writes down the dull and stereotyped error amount of going up between each aperture position of main shaft pivot angle and gauge orifice system between each hole section, and the said anglec of rotation is corresponding with the interval angle between each aperture position; Above-mentioned binary conversion error is become the error compensation value of the main shaft pivot angle between corresponding each hole section, make numerically-controlled machine tool system offset the pivot angle error of main shaft in corresponding each pivot angle scope according to said error compensation value.
Alternatively, said gauge orifice is that the anglec of rotation between a plurality of apertures on the flat board is identical or different.
Alternatively, the anglec of rotation between said a plurality of aperture is 3 ° to 8 °.
Alternatively, said gauge orifice is that the hole system on the flat board is one or more.
Alternatively, the anglec of rotation between the dull and stereotyped a plurality of apertures of same hole system of said gauge orifice system is identical or different.
Alternatively, the aperture of said each aperture is same or different.
Alternatively, the number of times of said trimming process is for 1 time or repeatedly.
Alternatively, the dull and stereotyped hole of said gauge orifice system is that radius is 200～300mm.
Compared with prior art, the present invention has the following advantages: through adopting technique scheme, can proofread and correct the pivot angle of the main shaft of numerical control machine tool body that produces error, reduce the replacing number of times to the Digit Control Machine Tool main shaft.The present invention can also abandon the more loaded down with trivial details laser tracker that operates, and simplifies the trimming process of the main shaft pivot angle after changing.The present invention has saved a large amount of producing costs and time through above-mentioned technological improvement, has guaranteed carrying out in order of production process.
In addition; The present invention can dispose the number of dull and stereotyped upward hole system of gauge orifice system, the anglec of rotation between each aperture, the aperture of each aperture according to the correction needs of reality flexibly; Greatly enriched the check point of main shaft pivot angle in trimming process of Digit Control Machine Tool, made correction means very various.
Description of drawings
Fig. 1 is the Digit Control Machine Tool of prior art and the sketch map of main shaft thereof;
Fig. 2 is the closely enlarged drawing of the main shaft of numerical control machine tool body of prior art;
Fig. 3 is the pivot angle method of correcting schematic flow sheet of the main shaft of numerical control machine tool body of one embodiment of the present of invention;
Fig. 4 is the dull and stereotyped sketch map of one embodiment of the present of invention formed gauge orifice system;
Fig. 5 is the dull and stereotyped vertical view of one embodiment of the present of invention formed gauge orifice system.
The specific embodiment
Below in conjunction with specific embodiment and accompanying drawing the present invention is described further, but should limit protection scope of the present invention with this.
Fig. 3 is the pivot angle method of correcting schematic flow sheet of the main shaft of numerical control machine tool body of one embodiment of the present of invention.As shown in Figure 3, comprising: execution in step S201, provide gauge orifice system dull and stereotyped, be formed with centre bore on it, with the centre bore center of circle, around it, also be formed with a plurality of apertures at a distance from certain anglec of rotation so that certain radius is also every; Execution in step S202 places gauge orifice system flat board on the work top of Digit Control Machine Tool, and the dull and stereotyped centre bore of main shaft pivot and gauge orifice system is aligned; Execution in step S203, the rotary main shaft body, every separated certain rotation angle measurement also writes down the dull and stereotyped error amount of going up between each aperture position of main shaft pivot angle and gauge orifice system between each hole section, and the said anglec of rotation is corresponding with the interval angle between each aperture position; Execution in step S204 becomes the error compensation value between corresponding each hole section with above-mentioned binary conversion error, makes numerically-controlled machine tool system offset the pivot angle error of main shaft in corresponding each pivot angle scope according to said error compensation value.
Fig. 4 is the dull and stereotyped sketch map of one embodiment of the present of invention formed gauge orifice system, and Fig. 5 is the dull and stereotyped vertical view of this embodiment formed gauge orifice system.As shown in Figure 4, provide dull and stereotyped, have centre bore 202 on it, the material of said flat board can be metal, is preferably aluminium; The shape of said flat board can be rectangle, is preferably square.
In the present embodiment, the length x width of said flat board can be 600 * 600mm, and thickness can be 50mm.The aperture of said centre bore 202 can be 40mm, and the degree of depth can be 25mm.
Then, be the center of circle with centre bore 202, around it, on flat board, make a plurality of apertures 208 with certain radius 204 and whenever separated certain anglec of rotation 206, form gauge orifice system flat board 200, like Fig. 4 and shown in Figure 5.
In the present embodiment, said gauge orifice is that the hole on dull and stereotyped 200 is that radius 204 can be 200～300mm, and concrete example such as 200mm, 220mm, 230mm, 240mm, 250mm, 260mm, 270mm, 280mm, 290mm or 300mm etc. are preferably 250mm.Under the certain situation of the pivot angle of main shaft of numerical control machine tool body; Long hole be radius to make the hole be that circumference has long arc length or chord length between each aperture 208, the error amount on the position that can make things convenient for main shaft pivot angle between each hole section of follow-up measurement and the gauge orifice system flat board 200 between each aperture 208 position.
In the present embodiment, the anglec of rotation 206 between a plurality of apertures 208 in the said gauge orifice system dull and stereotyped 200 can be for identical or different, and the aperture of each aperture 208 also can be for identical or different.The anglec of rotation 206 between said a plurality of aperture 208 can be 3 ° to 8 °, and concrete example is preferably 6 ° like 3 °, 4 °, 5 °, 6 °, 7 ° or 8 ° etc.The aperture of said each aperture 208 can be 10mm to 14mm, and concrete example such as 10mm, 11mm, 12mm, 13mm or 14mm etc. are preferably 12mm.In addition, the degree of depth of said each aperture 208 can be 15mm.
Then, gauge orifice system dull and stereotyped 200 is placed on the work top of Digit Control Machine Tool, the pivot of main shaft 101 and the centre bore 202 of gauge orifice system dull and stereotyped 200 are aligned, the center of circle of centre bore 202 is set to the initial point of the X-Y coordinate-system of Digit Control Machine Tool.
Next step; Rotary main shaft body 101; Every at a distance from certain rotation angle measurement and write down between each hole section the error amount between each aperture 208 position on main shaft pivot angle and the gauge orifice system flat board 200, the said anglec of rotation is corresponding with the interval angle 206 between each aperture 208 position.
In the present embodiment, be fixed with the lever meter dial framework on the said main shaft 101, lever meter is installed on dial framework.It is that the hole is the hole wall that circumference and each aperture 208 intersect in same direction on dull and stereotyped 200 that the gauge outfit of lever meter is touched gauge orifice; Move up and down the error amount between each aperture 208 position on position that lever meter measured and write down main shaft pivot angle between each hole section and the gauge orifice system flat board 200, the said anglec of rotation is corresponding with the interval angle 206 between each aperture 208 position.
At last, utilize functional relation
Above-mentioned binary conversion error is become the error compensation value of the main shaft pivot angle between corresponding each hole section; Wherein, Δ θ is the error compensation value of the main shaft pivot angle between corresponding each hole section; Δ x is the error amount between each aperture 208 position in position and the gauge orifice system dull and stereotyped 200 of main shaft pivot angle between each hole section, and r is the value of the radius 204 of the annulus be made up of a plurality of apertures 208 in the gauge orifice system dull and stereotyped 200.So numerically-controlled machine tool system can be offset the pivot angle error of main shaft in corresponding each pivot angle scope according to the error compensation value of the main shaft pivot angle between said each hole section.
In the present invention, the pivot angle trimming process of above-mentioned main shaft also can be for repeatedly, and this need constantly repeat above-mentioned trimming process, reaches production requirement until the positioning accuracy of the main shaft pivot angle of Digit Control Machine Tool and get final product.
In the present invention, said gauge orifice is that the hole system on the flat board also can so can play to different correction demands for a plurality of, uses the dull and stereotyped effect of same gauge orifice system, has improved the dull and stereotyped utilization rate of gauge orifice system, has practiced thrift the valuable resources of production.
In the present invention, be that the anglec of rotation between a plurality of apertures of same hole system on the flat board can be for identical or different at gauge orifice with a plurality of holes system, the aperture of each aperture also can be for identical or different.
In the present invention; Error that not only can correction number controlled machine X-Y plane inner main axis body C pivot angle; Can also proofread and correct the error of the sum of errors X-Z plane inner main axis body B pivot angle of Y-Z plane inner main axis body A pivot angle, these needs get final product through changing the dull and stereotyped corresponding placement location of gauge orifice system.
The present invention is through adopting above technical scheme, can proofread and correct the pivot angle of the main shaft of numerical control machine tool body that produces error, reduces the replacing number of times to the Digit Control Machine Tool main shaft.The present invention can also abandon the more loaded down with trivial details laser tracker that operates, and simplifies the trimming process of the main shaft pivot angle after changing.The present invention has saved a large amount of producing costs and time through above-mentioned technological improvement, has guaranteed carrying out in order of production process.
In addition; The present invention can dispose the number of dull and stereotyped upward hole system of gauge orifice system, the anglec of rotation between each aperture, the aperture of each aperture according to the correction needs of reality flexibly; Greatly enriched the check point of main shaft pivot angle in trimming process of Digit Control Machine Tool, made correction means very various.
Though the present invention with preferred embodiment openly as above; But it is not to be used for limiting the present invention; Any those skilled in the art are not breaking away from the spirit and scope of the present invention; Can make possible change and modification, so protection scope of the present invention should be as the criterion with the scope that claim of the present invention was defined.
Claims (8)
1. the pivot angle bearing calibration of a main shaft of numerical control machine tool body is characterized in that, comprises step:
Providing gauge orifice system dull and stereotyped, be formed with centre bore on it, is the center of circle with the centre bore, around it, also is formed with a plurality of apertures so that certain radius is also every at a distance from certain anglec of rotation;
Gauge orifice system flat board is placed on the work top of Digit Control Machine Tool, the dull and stereotyped centre bore of main shaft pivot and gauge orifice system is aligned;
The rotary main shaft body, every separated certain rotation angle measurement also writes down the dull and stereotyped error amount of going up between each aperture position of main shaft pivot angle and gauge orifice system between each hole section, and the anglec of rotation of said main shaft is corresponding with the anglec of rotation between each aperture position;
Above-mentioned binary conversion error is become the error compensation value of the main shaft pivot angle between corresponding each hole section, makes numerically-controlled machine tool system offset the pivot angle error of main shaft in corresponding each pivot angle scope according to said error compensation value,
Wherein, Utilize functional relation
above-mentioned binary conversion error to be become the error compensation value of the main shaft pivot angle between corresponding each hole section; Wherein, Δ θ is the error compensation value of the main shaft pivot angle between corresponding each hole section; Δ x is the dull and stereotyped error amount of going up between each aperture position in position and gauge orifice system of main shaft pivot angle between each hole section, and r is the dull and stereotyped value that goes up the radius of the annulus of being made up of a plurality of apertures of gauge orifice system.
2. the pivot angle bearing calibration of main shaft of numerical control machine tool body according to claim 1 is characterized in that, said gauge orifice is that the anglec of rotation between a plurality of apertures on the flat board is identical or different.
3. the pivot angle bearing calibration of main shaft of numerical control machine tool body according to claim 2 is characterized in that, the anglec of rotation between said a plurality of apertures is 3 ° to 8 °.
4. according to the pivot angle bearing calibration of each described main shaft of numerical control machine tool body in the claim 1 to 3, it is characterized in that said gauge orifice is that the hole system on the flat board is one or more.
5. the pivot angle bearing calibration of main shaft of numerical control machine tool body according to claim 4 is characterized in that, said gauge orifice system is dull and stereotyped, and the anglec of rotation between a plurality of apertures of same hole system be identical or different.
6. according to the pivot angle bearing calibration of each described main shaft of numerical control machine tool body in the claim 1 to 3, it is characterized in that the aperture of said each aperture is same or different.
7. according to the pivot angle bearing calibration of each described main shaft of numerical control machine tool body in the claim 1 to 3, it is characterized in that the number of times of said trimming process is for 1 time or repeatedly.
8. according to the pivot angle bearing calibration of each described main shaft of numerical control machine tool body in the claim 1 to 3, it is characterized in that the dull and stereotyped hole of said gauge orifice system is that radius is 200～300mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910055645A CN101987424B (en) | 2009-07-30 | 2009-07-30 | Method for correcting oscillation angle of spindle body of numerical control machine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910055645A CN101987424B (en) | 2009-07-30 | 2009-07-30 | Method for correcting oscillation angle of spindle body of numerical control machine |
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| CN101987424A CN101987424A (en) | 2011-03-23 |
| CN101987424B true CN101987424B (en) | 2012-09-26 |
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| CN200910055645A Active CN101987424B (en) | 2009-07-30 | 2009-07-30 | Method for correcting oscillation angle of spindle body of numerical control machine |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103386640B (en) * | 2013-07-29 | 2016-01-20 | 中国科学院长春光学精密机械与物理研究所 | Large caliber reflecting mirror machining tool accuracy alignment method |
| JP6394399B2 (en) * | 2015-01-09 | 2018-09-26 | 株式会社デンソー | Rotation angle detector |
| CN105127840B (en) * | 2015-09-08 | 2017-09-15 | 清华大学 | A kind of five-axis linkage machine tools main tapping attitude angle device and measuring method |
| CN105404239B (en) * | 2015-12-01 | 2018-04-10 | 清华大学 | A kind of any attitude measuring method of five axles series-parallel machine tool Kinematic Calibration |
| FR3054463B1 (en) * | 2016-07-29 | 2018-12-07 | Seti Tec | AUTOMATIC OR CONTROLLED FORWARD DRILLING DEVICE WITH A SELF-ALIGNING SPINDLE |
| CN106950918B (en) * | 2017-03-15 | 2019-02-22 | 成都飞机工业（集团）有限责任公司 | A method of for the AC pivot angle error compensation on numerically-controlled machine tool |
| CN110340730A (en) * | 2019-07-12 | 2019-10-18 | 山东职业学院 | A kind of five-axle number control machine tool calibrating installation and operating method |
| CN113369997B (en) * | 2021-06-25 | 2022-04-08 | 成都飞机工业（集团）有限责任公司 | Numerical control machine tool swing angle precision checking method |
| CN115338691B (en) * | 2022-06-17 | 2023-07-21 | 中航西安飞机工业集团股份有限公司 | Method for measuring feeding shaft error of numerical control machine tool |
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| CN2850869Y (en) * | 2005-12-16 | 2006-12-27 | 林旺南 | Electric control angle deflection device for head saw main axle of sliding table panel saw |
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| CN2850869Y (en) * | 2005-12-16 | 2006-12-27 | 林旺南 | Electric control angle deflection device for head saw main axle of sliding table panel saw |
| EP1852218A1 (en) * | 2006-05-04 | 2007-11-07 | C. & E. FEIN GmbH | Oscillation drive |
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