CN106346058B - A kind of offset extracting method of micro- milling cutter - Google Patents
A kind of offset extracting method of micro- milling cutter Download PDFInfo
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- CN106346058B CN106346058B CN201610985261.2A CN201610985261A CN106346058B CN 106346058 B CN106346058 B CN 106346058B CN 201610985261 A CN201610985261 A CN 201610985261A CN 106346058 B CN106346058 B CN 106346058B
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23C—MILLING
- B23C3/00—Milling particular work; Special milling operations; Machines therefor
-
- 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
- B23Q17/00—Arrangements for observing, indicating or measuring on machine tools
- B23Q17/09—Arrangements for observing, indicating or measuring on machine tools for indicating or measuring cutting pressure or for determining cutting-tool condition, e.g. cutting ability, load on tool
- B23Q17/0952—Arrangements for observing, indicating or measuring on machine tools for indicating or measuring cutting pressure or for determining cutting-tool condition, e.g. cutting ability, load on tool during machining
-
- 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
- B23Q17/00—Arrangements for observing, indicating or measuring on machine tools
- B23Q17/24—Arrangements for observing, indicating or measuring on machine tools using optics or electromagnetic waves
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Abstract
The invention discloses a kind of offset extracting method of micro- milling cutter, using following steps：One) micro- milling handle outline jerk value data are obtained using laser displacement sensor I, milling cutter bottom outline jerk value data are obtained using laser displacement sensor II, two) micro- milling handle outline jerk value data in collection a cycle and micro- milling cutter bottom outline jerk value data；Three) offset of micro- milling cutter is extracted： Wherein, γ0Cutter deflection angle；R0Cutter deflection distance；R tool radius；Δh、γ1、γ2Pass through step 2) obtain.It is of the invention simple, it is easy to operation.
Description
Technical field
The invention belongs to micro- Milling Process technical field, more particularly to a kind of offset extraction side of micro- milling cutter
Method.
Background technology
The demand of high-precision minitype part is constantly being increased severely in various fields now, especially in Aero-Space, life
The fields such as thing medical science, telecommunications and green technology.Micro- Milling Process technology has it in terms of the miniature parts of processed complex
Unique advantage, because the appearance of micro- Milling Process technology is relatively later, and there is its peculiar relative to macroscopical Milling Process technology
The characteristic such as dimensional effect, lot of domestic and foreign scholar is studied the processing mechanism of its milling process one after another, mainly including milling
The modeling of power, modeling of surface topography etc. are cut, at present for micro- Milling Process study mechanism also in developing stage.In micro- milling
The research process of processing mechanism, the offset of cutter are the key variables for influenceing model exactness, so as to accurately extract cutter
Offset seems most important.
The bias of cutter is generally regarded as the deviation of the centre of gyration of main shaft and the geometric center of cutter to handle, and is based on
The geometry of cutter is complete or error be less than offset it is assumed that the offset of extraction is the value of the nearly bottom of cutter.Its
In, cutter deflection amount mainly includes two parameters：First, cutter deflection distance R0(refer to main shaft rotation center and cutter geometric center
Offset distance)；2nd, cutter deflection angle γ0(referring to the angle between the direction of cutter deviation and adjacent cutter tooth recently).For
The extraction of the two parameters, cutter deflection is relatively easy away from extracting, and cutter deflection angle extraction has certain difficulty.
The method on offset extraction has many kinds at present, including：Milling Force mould is substituted into using Milling Force experimental data
Type is reversely demarcated；The difference substitution theoretical model measured using amesdial between each pirouette radius is solved；
Carry out analyzing reverse demarcation using the surface topography and its theoretical model that actually measure.It is seen that above-mentioned offset extraction
Method all relates to theoretical model, and the precision of extraction has very big dependence, extraction side to model and numerical computation method etc.
Method is complicated, and cumbersome, difficulty is larger.
The content of the invention
The offset that the present invention provides a kind of micro- milling cutter to solve technical problem present in known technology extracts
Method, this method is simple, easy to operation.
The present invention is adopted the technical scheme that to solve technical problem present in known technology：A kind of micro- milling cutter
Offset extracting method, using following steps：
One) micro- milling handle outline jerk value data are obtained using laser displacement sensor I, sensed using laser displacement
Device II obtains milling cutter bottom outline jerk value data, the laser displacement sensor I and the laser displacement sensor II
Measurement direction is vertical with the rotation centerline of cutter spindle and residing phase is identical；
Two) micro- milling handle outline jerk value data and the micro- milling cutter bottom outline jerk value in a cycle are gathered
Data；
Three) offset of micro- milling cutter is extracted：
Wherein, γ0- cutter deflection angle；R0- cutter deflection distance；R- tool radius；Δ h- be located at line of eccentricity both sides and
The cutter tooth C and cutter tooth F effective radius of clean-up difference nearest apart from line of eccentricity, sensed equal to cutter tooth C and cutter tooth F by laser displacement
The difference of jerk value data, passes through step 2 during device II) obtain；γ1- from line of eccentricity recently and in the eccentric positive axis region
Cutter tooth C and cutter spindle centre of gyration O lines and line of eccentricity BE angle, pass through laser displacement sensor II equal to cutter tooth C
When correspond to moment t2Corresponding moment t when passing through laser displacement sensor I with handle of a knife range sensor most proximal end B1Time difference Δ t1
Speed of cutter spindle is multiplied by, speed of cutter spindle is, it is known that time difference Δ t1Step 2 can be passed through) obtain；γ2- nearest from line of eccentricity
And cutter tooth F and the angle of cutter spindle centre of gyration O lines and line of eccentricity BE in eccentric negative semiaxis region, equal to cutter tooth
T at the time of F passes through laser displacement sensor II4With handle of a knife range sensor distalmost end E by the corresponding of laser displacement sensor I
Moment t3Time difference Δ t2It is multiplied by speed of cutter spindle, time difference Δ t2Pass through step 2) obtain；
The laser displacement sensor I and the laser displacement sensor II are fixed on the sensor stand being vertically arranged
On, the sensor stand is fixed on horizontally disposed index dial, and the laser displacement sensor I and the laser displacement pass
The measurement direction of sensor II is radially arranged and residing phase is identical along the same of the index dial；
The index dial is arranged on Z-direction precision displacement platform, and the Z-direction precision displacement platform is arranged on X to accurate position
Move on platform, the X is arranged on Y-direction precision displacement platform to precision displacement platform, and the Y-direction accurate displacement workbench is fixed
On micro- milling machine workbench.
The X is to precision displacement platform, the Y-direction precision displacement platform, the Z-direction precision displacement platform and the indexing
Disk is respectively provided with a hand crank.
The present invention has the advantages and positive effects of：Measurement data based on measurement sensor, calculated and carried by geometry
Take the offset of micro- milling cutter, it is easy to accomplish the accurate extraction to cutter deflection amount, operability is good, portable strong, can
Applied to micro- Milling Process technical field, practical, wide market, application easy to spread.
Brief description of the drawings
Fig. 1 is the structural representation that the present invention applies；
Fig. 2 is the cutter deflection schematic diagram of the application present invention；
Fig. 3 is the position that sensor I and the measurement direction relative main pivot of sensor II are adjusted during present invention application
Schematic diagram；
The instrumentation plan of sensor I when Fig. 4 is present invention application；
The measurement signal of sensor II and the offset of pico- milling cutter extract schematic diagram when Fig. 5 is present invention application；
Fig. 6 is step 2 of the present invention) collection data graphs.
In figure：1st, X is to precision displacement platform；2nd, hand crank；3rd, index dial；4th, laser displacement sensor II；5th, sense
Device support；6th, laser displacement sensor I；7th, tool mounting；8th, micro- milling cutter；9th, hand crank；10th, hand crank；11st, Z-direction essence
Close displacement platform；12nd, hand crank；13rd, Y-direction precision displacement platform；O, the cutter spindle centre of gyration；O ', cutter tooth partial geometry
Center；O ", shank portion geometric center；" floor projection overlaps O ' with O；O0, index dial geometric center；A, cutter tooth location A；C、
Cutter tooth location of C；D, cutter tooth D positions；F, cutter tooth F positions；B, handle of a knife range sensor most proximal end；E, handle of a knife range sensor is farthest
End.
Embodiment
In order to further understand the content, features and effects of the present invention, hereby enumerating following examples, and coordinate accompanying drawing
Describe in detail as follows：
Refer to Fig. 1~Fig. 6, a kind of offset extracting method of micro- milling cutter, using following steps：
One) micro- milling handle outline jerk value data are obtained using laser displacement sensor I 6, passed using laser displacement
Sensor II 4 obtains the bottom outline jerk value data of milling cutter 8, the laser displacement sensor I 6 and laser displacement sensing
Phase residing for device II 4 is identical.Micro- milling cutter 8 is by the clamping of tool mounting 7 on cutter spindle.
Two) using micro- milling handle outline jerk value data in a cycle and micro- milling cutter bottom outline jerk value
Data.
Three) offset of micro- milling cutter is extracted：
Wherein, γ0- cutter deflection angle；R0- cutter deflection distance；R- tool radius；Δ h- be located at line of eccentricity both sides and
The cutter tooth C and cutter tooth F effective radius of clean-up difference nearest apart from line of eccentricity, sensed equal to cutter tooth C and cutter tooth F by laser displacement
The difference of jerk value data, passes through step 2 during device II 4) it can obtain；γ1- from line of eccentricity recently and it is in eccentric positive axis
The angle of cutter tooth C and cutter spindle centre of gyration O lines and line of eccentricity BE in region, passed equal to cutter tooth C by laser displacement
Moment t is corresponded to during sensor II 42Corresponding moment t when passing through laser displacement sensor I 6 with handle of a knife range sensor most proximal end B1When
Between poor Δ t1It is multiplied by speed of cutter spindle, time difference Δ t known to speed of cutter spindle1Step 2 can be passed through) obtain；γ2- from
Line of eccentricity is recently and in the eccentric cutter tooth F born in semiaxis region and cutter spindle centre of gyration O lines and line of eccentricity BE folder
Angle, t at the time of passing through laser displacement sensor II 4 equal to cutter tooth F4Pass through laser displacement with handle of a knife range sensor distalmost end E
The corresponding moment t of sensor I 63Time difference Δ t2It is multiplied by speed of cutter spindle, time difference Δ t known to the speed of mainshaft2Pass through
Step 2) obtain.
The laser displacement sensor I 6 and the laser displacement sensor II 4 are fixed on the sensor stand being vertically arranged
On 5, the sensor stand 5 is fixed on horizontally disposed index dial 3, the laser displacement sensor I 6 and the laser position
The measurement direction of displacement sensor II 4 is radially arranged and residing phase is identical along the same of the index dial 3, specifically, in order to protect
Demonstrate,prove the laser displacement sensor I 6 and the laser displacement sensor II 4 to fetch according to the data for being same phase, must ensure
The measurement direction of the laser displacement sensor I 6 and the laser displacement sensor II 4 in same vertical plane, be parallel to each other
And it is vertical with cutter spindle rotation centerline, two sensor mounting locations in addition to height remaining be consistent.
The index dial 3 is arranged on Z-direction precision displacement platform 11, and the Z-direction precision displacement platform 11 is arranged on X to essence
On close displacement platform 1, the X is arranged on Y-direction precision displacement platform 13 to precision displacement platform 1, the Y-direction accurate displacement work
Make platform 13 to be fixed on micro- milling machine workbench.
In the present embodiment, in order to strengthen operability, the X is put down to precision displacement platform 1, the Y-direction accurate displacement
Platform 13, the Z-direction precision displacement platform 11 and the index dial 3 are respectively provided with a hand crank 2,12,10 and 9.
Specific operation process divides three parts：
One) sensing station adjusts
Manually crank 10 adjusts Z-direction accurate displacement workbench 11 so that the laser displacement sensor I 6 and institute first
State laser displacement sensor II 4 and be respectively aligned to micro- milling handle and micro- milling cutter bottom, then manually crank 2,12 adjust X to
Precision displacement platform 1 and Y-direction precision displacement platform 13, make the laser displacement sensor I 6 and the laser displacement sensor II
4 correct position in its range.
Then cutter spindle is started, rotational speed omega, manually the adjustment index dial 3 of crank 9 is so that laser displacement sensing
The measurement data of device I 6 peak-to-valley difference in a cycle is minimum, that is, thinks the laser displacement sensor I 6 and the laser
The measurement direction of displacement transducer II 4 is vertical with the rotation centerline of cutter spindle, and adjustment process see Fig. 3.
Two) measurement signal gathers
After cutter spindle starts, the laser displacement sensor I 6 and the laser displacement sensor II 4, collection one are opened
The measurement signal of individual complete cycle, as shown in Figure 6.
Three) cutter deflection amount is extracted
As shown in fig. 6, the data that laser displacement sensor I 6 gathers are dotted line, wherein handle of a knife range sensor most proximal end B
It is that valley, handle of a knife range sensor distalmost end E pass through laser displacement sensor I by jerk value during laser displacement sensor I 6
Jerk value when 6 is peak value, the position t of place time shaft1With t3It is determined that the data that same laser displacement sensor II 4 gathers are
Solid line, wherein nearest from line of eccentricity BE and in eccentric positive axis region cutter tooth C is jumped when passing through laser displacement sensor II 4
Momentum is valley, when nearest from line of eccentricity BE and in eccentric negative semiaxis region cutter tooth F passes through laser displacement sensor II 4
Jerk value is valley, place time shaft position t2With t4It can also determine, so as to know Δ t1=t2-t1、Δt2=t4-t3
With Δ h.
As shown in figure 5, γ1With γ2γ can be expressed as1=ω * Δs t1、γ2=ω * Δs t2, make boost lineIt is M and N perpendicular to line of eccentricity BE and intersection point, then by geometrical relationship,WithIt is represented by And, it is known that so as to obtain cutter deflection angle γ0.WhereinWithAgain can table
It is shown asAnd, it is known that
Cutter deflection angle γ0Obtained from above, so as to obtain cutter deflection away from R0。
Although the preferred embodiments of the present invention are described above in conjunction with accompanying drawing, the invention is not limited in upper
The embodiment stated, above-mentioned embodiment is only schematical, be not it is restricted, this area it is common
Technical staff in the case of present inventive concept and scope of the claimed protection is not departed from, may be used also under the enlightenment of the present invention
By make it is many in the form of, these are belonged within protection scope of the present invention.
Claims (2)
1. a kind of offset extracting method of micro- milling cutter, it is characterised in that using following steps：
One) micro- milling handle outline jerk value data are obtained using laser displacement sensor I, using laser displacement sensor II
Milling cutter bottom outline jerk value data are obtained, the laser displacement sensor I and the laser displacement sensor II measure
Direction is vertical with the rotation centerline of cutter spindle and residing phase is identical；
Two) micro- milling handle outline jerk value data and the micro- milling cutter bottom outline jerk value number in a cycle are gathered
According to；
Three) offset of micro- milling cutter is extracted：
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Wherein, γ0- cutter deflection angle；R0- cutter deflection distance；R- tool radius；Δ h- is located at line of eccentricity both sides and distance
The effective radius of clean-up differences of line of eccentricity nearest cutter tooth C and cutter tooth F, pass through laser displacement sensor II equal to cutter tooth C and cutter tooth F
When jerk value data difference, pass through step 2) obtain；γ1- from line of eccentricity recently and the knife in the eccentric positive axis region
The angle of tooth C and cutter spindle centre of gyration O lines and line of eccentricity BE, when passing through laser displacement sensor II equal to cutter tooth C pair
Answer moment t2Corresponding moment t when passing through laser displacement sensor I with handle of a knife range sensor most proximal end B1Time difference Δ t1It is multiplied by
Speed of cutter spindle, speed of cutter spindle is, it is known that time difference Δ t1Step 2 can be passed through) obtain；γ2- and place nearest from line of eccentricity
In cutter tooth F and the angle of cutter spindle centre of gyration O lines and line of eccentricity BE in eccentric negative semiaxis region, passed through equal to cutter tooth F
T at the time of crossing laser displacement sensor II4With handle of a knife range sensor distalmost end E by laser displacement sensor I to it is corresponding when
Carve t3Time difference Δ t2It is multiplied by speed of cutter spindle, time difference Δ t2Pass through step 2) obtain；
The laser displacement sensor I and the laser displacement sensor II are fixed on the sensor stand being vertically arranged, institute
State sensor stand to be fixed on horizontally disposed index dial, the laser displacement sensor I and the laser displacement sensor
II measurement direction is radially arranged and residing phase is identical along the same of the index dial；
The index dial is arranged on Z-direction precision displacement platform, and the Z-direction precision displacement platform is put down installed in X to accurate displacement
On platform, the X is arranged on Y-direction precision displacement platform to precision displacement platform, and the Y-direction accurate displacement workbench is fixed on micro-
On milling machine workbench.
2. the offset extracting method of micro- milling cutter according to claim 1, it is characterised in that the X is to accurate position
Move platform, the Y-direction precision displacement platform, the Z-direction precision displacement platform and the index dial and be respectively provided with a hand crank.
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| CN201610985261.2A CN106346058B (en) | 2016-10-25 | 2016-10-25 | A kind of offset extracting method of micro- milling cutter |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610985261.2A CN106346058B (en) | 2016-10-25 | 2016-10-25 | A kind of offset extracting method of micro- milling cutter |
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Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107443169B (en) * | 2017-08-08 | 2019-04-26 | 哈尔滨工业大学 | A kind of meso-scale milling cutter obliquely intersected recognition methods |
| CN108838689B (en) * | 2018-06-20 | 2019-08-13 | 华中科技大学 | A kind of collimator pose regulating device and method in laser assisted milling |
| CN109202535B (en) * | 2018-09-29 | 2020-12-22 | 南京艾提瑞精密机械有限公司 | Method for estimating axial runout of spindle based on machining morphology detection |
| CN111113265B (en) * | 2019-12-12 | 2021-07-06 | 湖南工程学院 | Method for identifying eccentricity of motorized spindle-cutter system |
| CN111551133A (en) * | 2020-04-21 | 2020-08-18 | 天津大学 | Cutter eccentricity measuring device with spatial angle and method |
| CN111618657B (en) * | 2020-05-21 | 2021-04-27 | 西安交通大学 | Universal on-machine non-contact calibration method for eccentric parameters of milling cutter |
| CN111780967B (en) * | 2020-06-12 | 2022-04-05 | 中国船舶重工集团公司第七二四研究所 | Turntable transmission precision optical composite detection method capable of correcting eccentric error |
| CN114536098B (en) * | 2022-01-24 | 2023-05-02 | 南昌大学 | Ultra-precise milling precision tool setting method based on trial cutting linear groove |
| CN114986725B (en) * | 2022-05-25 | 2024-03-22 | 光力瑞弘电子科技有限公司 | Dicing saw cutting method, dicing device, dicing saw and medium |
| CN115319540B (en) * | 2022-07-26 | 2023-08-25 | 南阳煜众精密机械有限公司 | Visual measurement method for on-machine cutter eccentric parameters |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| SU1450931A1 (en) * | 1987-03-24 | 1989-01-15 | Новополоцкий Политехнический Институт Им.Ленинского Комсомола Белоруссии | Method of machining polyhedrons |
| JP3792812B2 (en) * | 1996-11-11 | 2006-07-05 | オークマ株式会社 | Ball end mill sphericity measurement method |
| CN104742017B (en) * | 2013-02-07 | 2017-04-12 | 常州工学院 | Accurate control method of contour detecting and grinding device for planar conjugate cam |
| CN103522348B (en) * | 2013-10-18 | 2015-10-21 | 清华大学 | Presetting cutter method and proper circle processing method thereof and Fresnel Lenses processing method |
| CN103753353B (en) * | 2013-12-31 | 2016-03-30 | 无锡透平叶片有限公司 | A kind of non-contact laser measuring method of Fast Measurement milling cutter bias |
| CN104526464B (en) * | 2014-11-27 | 2016-08-31 | 华中科技大学 | A kind of cutter jerk value and the measuring method of blade initial angle and device |
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