CN108788930B - A kind of ultraprecise based on CCD camera on-position measure is to the skill in using a kitchen knife in cookery - Google Patents
A kind of ultraprecise based on CCD camera on-position measure is to the skill in using a kitchen knife in cookery Download PDFInfo
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- CN108788930B CN108788930B CN201810668997.6A CN201810668997A CN108788930B CN 108788930 B CN108788930 B CN 108788930B CN 201810668997 A CN201810668997 A CN 201810668997A CN 108788930 B CN108788930 B CN 108788930B
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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
- B23Q17/00—Arrangements for observing, indicating or measuring on machine tools
- B23Q17/22—Arrangements for observing, indicating or measuring on machine tools for indicating or measuring existing or desired position of tool or work
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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
- 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
- B23Q17/2428—Arrangements for observing, indicating or measuring on machine tools using optics or electromagnetic waves for measuring existing positions of tools or workpieces
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- Mechanical Engineering (AREA)
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- Optics & Photonics (AREA)
- Machine Tool Sensing Apparatuses (AREA)
- Milling Processes (AREA)
- Automatic Control Of Machine Tools (AREA)
Abstract
The invention discloses a kind of ultraprecises based on CCD camera on-position measure to the skill in using a kitchen knife in cookery, obtains annular width by CCD camera measurement, and be modified according to base position of the annular width to work pieces process plane, carries out following process as benchmark.The present invention compared with the prior art, firstly, being avoided in principle to knife bring error, realizes the machining of high-precision size microstructures array；The time cost consumed when secondly, avoiding milling datum level, improves processing efficiency, reduces processing cost；Moreover, this method also avoids abrasion of the milling datum level to cutter when machined material is superhard material；In addition, this method, which breaches molding sharp knife, to realize the technical effect that existing presetting cutter method is unable to reach accurately to the technical problem of knife.
Description
Technical field
The present invention relates to Ultra-precision machining technical field, more particularly to a kind of based on CCD camera on-position measure
Ultraprecise is to the skill in using a kitchen knife in cookery.
Background technique
In mechanical processing process, generally require first to determine that datum level is processed again.Especially for ultra precision cutting
The setting accuracy of manufacture field, datum level directly affects machining accuracy.Currently, main in single-crystal diamond Ultra-precision machining
Will by cut it is around-France to knife and cut datum level method to fine cutter carry out machining benchmark point determination.
Cut refer to around-France to knife: when workpiece rotation, fine cutter is gradually fed to workpiece surface, when cutting out human eye on surface
The feed-disabling when annulus that can observe, and using the position of cutter at this time as the zero reference point of following process.Cut datum level method
Refer to: before processing, material removal process first being carried out to the surface of workpiece, obtains a datum level, and the position of cutter at this time
Set the zero reference point as following process.
It cuts around-France to knife easy to operate, but there is error in principle.When workpiece surface can observe annulus,
Point of a knife has been cut into workpiece datum level certain depth, and actual zero reference point error is about 500nm.If micro-nano array is several
What dimension precision requirement is less than 500nm, due to the presence of the datum error, it is impossible to realize adding for the precision micro structure array
Work.
Cutting datum level method, there is no errors from principle, but there are following disadvantages: (1) adding when to workpiece progress milling
In working hour, to make datum level meet optical mirror surface requirement, when Milling Process, must be processed with very low feed speed, be processed
It is low efficiency, at high cost；(2) in addition, when machined material is superhard material (monocrystalline silicon, silicon carbide, tungsten carbide etc.), in benchmark
In the process in face, the serious wear of cutter, it is difficult to ensure that the machining of high quality datum level, simultaneously because the mill of cutter
Damage also cannot achieve the machining of subsequent high quality, high uniformly micro-nano array；(3) when the cutter used is triangle sharp knife
When, since corner radius is especially small, smooth datum level can not be processed, that is, cuts datum level and is not suitable for point
Knife is to knife.
Therefore, how to provide a kind of precision it is high, it is high-efficient, at low cost, to cutter almost without wearing and be able to satisfy sharp knife
Method is determined to the cutter zero reference point of knife, is those skilled in the art's technical problem urgently to be resolved.
Summary of the invention
The object of the present invention is to provide a kind of ultraprecises based on CCD camera on-position measure to the skill in using a kitchen knife in cookery, to improve processing essence
Degree is high and processing efficiency, reduction production cost reduce the abrasion to cutter.
To achieve the above object, the present invention provides following schemes:
The invention discloses a kind of ultraprecises based on CCD camera on-position measure to the skill in using a kitchen knife in cookery, comprising the following steps:
1) it secures the workpiece against on lathe, smooth turning then is carried out to workpiece surface with single-crystal diamond arc lathe tool；
2) work pieces process plane is carried out using diamond triangular formed turning tool forming annulus to knife ring machining, with
The normal of work pieces process plane is reference axis Z, and position of tool tip is set as datum mark Z at this time1；
3) the width T of online CCD camera measuring system measurement annulus is utilized；
4) position of work pieces process plane is set as Z0, the depth of annulus is Z2, then according to Z0=Z1+Z2It is flat to obtain work pieces process
The position in face, with Z0On the basis of carry out following process；
The triangle for being 2 α for cutter wedge angle angle shapes sharp knife, Z2=T/ (2tan α)；
It is T for main cutting edge length0, main cutting edge and end cutting edge angle be 90 ° of+α trapezoidal shaping knife, Z2=(T-
T0)/(2Tanα)；
The arc-shaped cutter for being R for arc radius, Z2=R- (R2-T2/4)0.5。
Preferably, workpiece is fixed on lathe by vacuum chuck.
Preferably, with single-point diamond knife that the absorption facing of vacuum chuck is smooth before fixed workpiece.
Preferably, vacuum chuck is aluminium alloy sucker.
The present invention achieves following technical effect compared with the existing technology:
The present invention obtains annular width by CCD camera measurement, and according to the annular width to the base of work pieces process plane
Level, which is set, to be modified, and carries out following process as benchmark, firstly, being avoided in principle to knife bring error, is realized
The machining of high-precision size microstructures array；The time cost consumed when secondly, avoiding milling datum level improves and adds
Work efficiency rate, reduces processing cost；Moreover, this method also avoids milling datum level when machined material is superhard material
Abrasion to cutter；In addition, this method, which breaches molding sharp knife, to be realized existing to knife side accurately to the technical problem of knife
The technical effect that method is unable to reach.The present invention is secured the workpiece against on lathe by vacuum chuck, has saved processing cost, is simplified
Operating procedure.
Detailed description of the invention
It in order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, below will be to institute in embodiment
Attached drawing to be used is needed to be briefly described, it should be apparent that, the accompanying drawings in the following description is only some implementations of the invention
Example, for those of ordinary skill in the art, without creative efforts, can also obtain according to these attached drawings
Obtain other attached drawings.
Fig. 1 is that the present invention is based on the ultraprecises of CCD camera on-position measure to the schematic diagram of the step 1 of the skill in using a kitchen knife in cookery；
Fig. 2 is that the present invention is based on the ultraprecises of CCD camera on-position measure to the schematic diagram of the step 2 of the skill in using a kitchen knife in cookery；
Fig. 3 is that the present invention is based on the ultraprecises of CCD camera on-position measure to the schematic diagram of the step 3 of the skill in using a kitchen knife in cookery；
Fig. 4 is to processing effect schematic diagram after the completion of knife；
Fig. 5 is the Computing Principle schematic diagram that step 4 intermediate cam shapes sharp knife；
Fig. 6 is the Computing Principle schematic diagram of trapezoidal shaping knife in step 4；
Fig. 7 is the Computing Principle schematic diagram of arc-shaped cutter in step 4；
Description of symbols: 1 workpiece, 11 annulus, 21 triangles forming sharp knife, 22 trapezoidal shaping knives, 23 arc-shaped cutters, 3
Single-crystal diamond arc lathe tool, 4 vacuum chucks, 5 online CCD camera measuring systems.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
The object of the present invention is to provide a kind of ultraprecises based on CCD camera on-position measure to the skill in using a kitchen knife in cookery, is added with improving
Work precision is high and processing efficiency, reduction production cost reduce the abrasion to cutter.
In order to make the foregoing objectives, features and advantages of the present invention clearer and more comprehensible, with reference to the accompanying drawing and specific real
Applying mode, the present invention is described in further detail.
As shown in figs. 1-7, the present embodiment provides a kind of ultraprecises based on CCD camera on-position measure to the skill in using a kitchen knife in cookery, including with
Lower step:
1) as shown in Figure 1, workpiece 1 is fixed on lathe, then with single-crystal diamond arc lathe tool 3 to 1 surface of workpiece
Smooth turning is carried out, in order to carry out following process.
2) it carries out as shown in Fig. 2, processing plane to workpiece 1 using diamond triangular formed turning tool to knife ring machining,
Annulus 11 is formed, using the normal of the processing plane of workpiece 1 as reference axis Z, position of tool tip is set as datum mark Z at this time1。
3) as shown in figure 3, measuring the width T of annulus 11 using online CCD camera measuring system 5.
4) it sets workpiece 1 and processes the position of plane as Z0, the depth of annulus 11 is Z2, then according to Z0=Z1+Z2Workpiece 1 is obtained to add
The position of work plane, with Z0On the basis of carry out following process, processing effect is as shown in Figure 4.
It should be noted that diamond triangular formed turning tool can be triangle forming sharp knife 21 in step 2), it is also possible to
Arc-shaped cutter 23 or trapezoidal shaping knife 22.For different types of diamond triangular formed turning tool, corresponding Z2Calculating
Method is not also identical:
The triangle for being 2 α for cutter wedge angle angle shapes sharp knife 21, Z2=T/ (2tan α), Computing Principle is as shown in Figure 5；
It is T for main cutting edge length0, main cutting edge and end cutting edge angle be 90 ° of+α trapezoidal shaping knife 22, Z2=
(T-T0)/(2Tan α), Computing Principle is as shown in Figure 6；
The arc-shaped cutter 23, Z for being R for arc radius2=R- (R2-T2/4)0.5, Computing Principle is as shown in Figure 7.
Further, above-mentioned steps 1) in workpiece 1 be fixed on there are many modes on lathe.In the present embodiment, workpiece 1 is logical
It crosses vacuum chuck 4 to be fixed on lathe, to save processing cost, simplifies operating procedure.
In order to improve positioning accuracy, before fixed workpiece 1, first use single-point diamond knife by the adsorption plane of vacuum chuck 4
Turning is smooth.Vacuum chuck 4 is preferably aluminium alloy sucker, can also select other materials.
Z is obtained according to corrected Calculation0Value after, that is, can determine that workpiece 1 processes the physical location of plane, and as benchmark
Carry out following process.When working depth is the micro structure array of D, only cutter need to be deviateed Z0Position D depth, can be completed height
The processing of precision geometric dimension micro structure array.
The skill in using a kitchen knife in cookery is processed by using above-mentioned ultraprecise, firstly, avoided in principle to knife bring error, it is real
The now machining of high-precision size microstructures array；The time cost consumed when secondly, avoiding milling datum level, improves
Processing efficiency reduces processing cost；Moreover, this method also avoids milling benchmark when machined material is superhard material
In face of the abrasion of cutter；In addition, this method, which breaches molding sharp knife, to be realized existing to knife accurately to the technical problem of knife
The technical effect that method is unable to reach.
Apply that a specific example illustrates the principle and implementation of the invention in this specification, above embodiments
Explanation be merely used to help understand method and its core concept of the invention；At the same time, for those skilled in the art,
According to the thought of the present invention, there will be changes in the specific implementation manner and application range.In conclusion in this specification
Appearance should not be construed as limiting the invention.
Claims (4)
1. a kind of ultraprecise based on CCD camera on-position measure is to the skill in using a kitchen knife in cookery, which comprises the following steps:
1) it secures the workpiece against on lathe, smooth turning then is carried out to workpiece surface with single-crystal diamond arc lathe tool；
2) work pieces process plane is carried out using diamond triangular formed turning tool annulus being formed, with workpiece to knife ring machining
The normal for processing plane is reference axis Z, and position of tool tip is set as datum mark Z at this time1；
3) the width T of online CCD camera measuring system measurement annulus is utilized；
4) position of work pieces process plane is set as Z0, the depth of annulus is Z2, then according to Z0=Z1+Z2Obtain work pieces process plane
Position, with Z0On the basis of carry out following process；
The triangle for being 2 α for cutter wedge angle angle shapes sharp knife, Z2=T/ (2tan α)；
It is T for main cutting edge length0, main cutting edge and end cutting edge angle be 90 ° of+α trapezoidal shaping knife, Z2=(T-T0)/
(2Tanα)；
The arc-shaped cutter for being R for arc radius, Z2=R- (R2-T2/4)0.5。
2. the ultraprecise according to claim 1 based on CCD camera on-position measure is to the skill in using a kitchen knife in cookery, which is characterized in that workpiece is logical
Vacuum chuck is crossed to be fixed on lathe.
3. the ultraprecise according to claim 2 based on CCD camera on-position measure is to the skill in using a kitchen knife in cookery, which is characterized in that in fixation
It is with single-point diamond knife that the absorption facing of vacuum chuck is smooth before workpiece.
4. the ultraprecise according to claim 3 based on CCD camera on-position measure is to the skill in using a kitchen knife in cookery, which is characterized in that vacuum is inhaled
Disk is aluminium alloy sucker.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810668997.6A CN108788930B (en) | 2018-06-26 | 2018-06-26 | A kind of ultraprecise based on CCD camera on-position measure is to the skill in using a kitchen knife in cookery |
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| CN201810668997.6A CN108788930B (en) | 2018-06-26 | 2018-06-26 | A kind of ultraprecise based on CCD camera on-position measure is to the skill in using a kitchen knife in cookery |
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| CN108788930A CN108788930A (en) | 2018-11-13 |
| CN108788930B true CN108788930B (en) | 2019-08-02 |
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| CN109605123A (en) * | 2019-01-28 | 2019-04-12 | 哈尔滨工业大学 | A kind of micro- milling special purpose machine tool of ultraprecise for slow-wave structure part |
| CN111761360A (en) * | 2020-03-31 | 2020-10-13 | 江苏贵钰航空工业有限公司 | Large gantry vertical type numerical control boring and milling machine tool |
| CN113793313B (en) * | 2021-09-10 | 2023-12-12 | 哈尔滨工业大学 | High-precision tool setting method and device for machining full-surface micro-pit structure of thin-wall spherical shell type micro-component |
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| DE19930272A1 (en) * | 1999-06-25 | 2001-01-04 | Flemming G & Pehrsson H | Production of a security mark on a workpiece or sheet, that is to be deep drawn, by use of a needle tool controlled using a positioning sensor such as a CCD camera sensor enabling precise surface parameters to be determined |
| JP2012088375A (en) * | 2010-10-15 | 2012-05-10 | Toshiba Mach Co Ltd | Machine tool with observation point focusing support function |
| CN104647041A (en) * | 2015-02-14 | 2015-05-27 | 安徽金义得机械有限公司 | Small-scale numerically-controlled milling and drilling machine and correction and tool alignment method thereof |
| CN205394156U (en) * | 2016-03-21 | 2016-07-27 | 哈尔滨理工大学 | Tool setting appearance based on CCD camera carries out picture catching |
| CN107649947A (en) * | 2017-05-02 | 2018-02-02 | 上海华太数控技术有限公司 | CNC vision positioning systems |
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19930272A1 (en) * | 1999-06-25 | 2001-01-04 | Flemming G & Pehrsson H | Production of a security mark on a workpiece or sheet, that is to be deep drawn, by use of a needle tool controlled using a positioning sensor such as a CCD camera sensor enabling precise surface parameters to be determined |
| JP2012088375A (en) * | 2010-10-15 | 2012-05-10 | Toshiba Mach Co Ltd | Machine tool with observation point focusing support function |
| CN104647041A (en) * | 2015-02-14 | 2015-05-27 | 安徽金义得机械有限公司 | Small-scale numerically-controlled milling and drilling machine and correction and tool alignment method thereof |
| CN205394156U (en) * | 2016-03-21 | 2016-07-27 | 哈尔滨理工大学 | Tool setting appearance based on CCD camera carries out picture catching |
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