CN1155111A - Economical multi-axis numerical control system and inter-linked controlling method thereof - Google Patents
Economical multi-axis numerical control system and inter-linked controlling method thereof Download PDFInfo
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- CN1155111A CN1155111A CN 96116810 CN96116810A CN1155111A CN 1155111 A CN1155111 A CN 1155111A CN 96116810 CN96116810 CN 96116810 CN 96116810 A CN96116810 A CN 96116810A CN 1155111 A CN1155111 A CN 1155111A
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- 238000000034 method Methods 0.000 title claims abstract description 11
- 238000006073 displacement reaction Methods 0.000 claims abstract description 25
- 230000033001 locomotion Effects 0.000 claims abstract description 7
- 238000003754 machining Methods 0.000 claims description 6
- 230000008878 coupling Effects 0.000 abstract 1
- 238000010168 coupling process Methods 0.000 abstract 1
- 238000005859 coupling reaction Methods 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 3
- 230000003993 interaction Effects 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 230000002498 deadly effect Effects 0.000 description 1
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Abstract
The present invention relates to a numerical control system for machine tool and its control method. In particular it provides a multiple spindle numerical control system formed of microcomputer and one-chip computer control unit and its correspondent coupling control method. Said control unit is correspondent to the working motion shaft being in need of control, and uses the computer to resolve and calculate actual control shaft displacement of every motion shaft on the unit displacement section of working curved surface and dummy reference shaft displacement, then makes linear interpolation operation for both displacements so as to make programming and operation control. Said invention can be used for working various complex curved workpieces.
Description
The present invention relates to digital control system and the control method thereof of machine-building, especially multi-shaft interlocked digital control system and control method thereof with lathe.
In machine industry (comprise car, mill, plane, mill and electrochemical machining, Wire-cut Electrical Discharge Machining etc.) at present, the multi-axis numerical control lathe (four, five etc.) also less for number, its digital control system is made up of high performance Industrial Control Computer and corresponding software thereof, technical difficulty is big, only grasped and strictly secret by minority developed country, China still is in only by the Numeric Control Technology stage of Single-chip Controlling diaxon to diaxon half, be difficult to realize multi-shaft interlocked control for a long time, can not adapt to the processing request of complicated shape profile.
The object of the present invention is to provide a kind of economical multi-axis numerical control system and the inter-linked controlling method thereof that can realize multi-shaft interlocked control.
Economical multi-axis numerical control system provided by the present invention is formed by a microcomputer and several Single-chip Controlling unit combination, the number of control module is identical with the working motion axle number of required control, the output interface of computing machine links to each other with the input interface of each control module, and the output interface of each control module links to each other with the Be Controlled axial interface of numerically-controlled machine respectively.
At above-mentioned digital control system, the multi-shaft interlocked control method that the present invention proposes is: the combination that 1. will need the whole curved surface of processing work to resolve into some segment curved surfaces by mathematical operation, and each segment curved surface is decomposed into the element displacement section of each kinematic axis again; 2. calculate the displacement Δ of each kinematic axis on each element displacement section
i, cutter processing sword is controlled in the allowed band by the error that multiaxial motion formed processing deriving face designs between the curved surface relatively, and makes the whole face of deriving smooth continuously; 3. each kinematic axis control module is set up a virtual common reference axle, and establish the reference axis displacement δ of each control module on each element displacement section
iAnd velocity of displacement V
iAll identical; 4. with the working control axial translation amount Δ of each kinematic axis control module
iWith respect to virtual reference axial translation amount δ
iCarry out the linear interpolation computing; 5. concern machining programming by above-mentioned linear interpolation, be input to each control module, corresponding kinematic axis is operated control by computing machine.
Below in conjunction with drawings and Examples the present invention is described in detail.
Accompanying drawing 1. digital control system connection diagrams of the present invention.
Can not carry out the deadly defect of multi-shaft interlocked control in order to overcome existing economical CNC system (as single-chip computer control system), the present invention proposes Single-chip Controlling unit and the combination of microcomputer construction system, unify to control a plurality of Single-chip Controlling unit by a microcomputer, control corresponding kinematic axis then.Because design, manufacturing and the application technology of Single-chip Controlling unit are all ripe, it is reliable and stable to utilize it that machining tool is carried out control performance, but the wherein crucial kinematic axis that each control module is controlled that is is realized synchronous interaction.The present invention proposes the same relatively virtual reference axle of multiaxis for this reason and carry out the inter-linked controlling method of linear interpolation computing, thereby solved this difficult problem.
For example: controlling object is X, Y, three linear axis of Z and cutter oscillation axle C
TWith Workpiece Rotating axle C
WFive coordinate motions, then its corresponding digital control system device is formed (seeing accompanying drawing) by a microcomputer 1 and five Single-chip Controlling unit 2.Earlier processing curve is performed mathematical calculations by computing machine, be broken down into the combination of some segment curved surfaces, each segment curved surface is decomposed into the element displacement section of each kinematic axis again; With each required displacement Δ on each displaced segments
iCalculate, and draw cutter processing sword formed processing deriving face in view of the above; The face of will deriving compares with the design curved surface, makes the error between them be no more than the error range (if exceeded, then again the element displacement section being decomposed until suitable) that processing allows; Each control module has two coordinate interpolations and control function, and wherein a coordinate is the working control axle, and another coordinate then is virtual common reference axle, and the displacement of establishing each control module its actual Control Shaft in i displaced segments is respectively:
ΔX
i，ΔY
i，ΔZ
i，ΔC
Ti，ΔC
Wi，
The displacement of getting the virtual reference axle of each control module again is δ
i, and
δ
i≥Max〔ΔX
i，ΔY
i，ΔZ
i，ΔC
Ti，ΔC
Wi〕
In each control module to corresponding reality-empty coordinate displacement amount
Δ X
i-δ
i, Δ Y
i-δ
i, Δ Z
i-δ
i, Δ C
Ti-δ
i, Δ C
Wi-δ
iDo the linear interpolation computing, obvious by geometric relationship, the also corresponding linear interpolation relation that meets of the actual displacement of five kinematic axiss.According to The above results machining programming and be input to each control module on microcomputer, thereby corresponding kinematic axis is operated control.Because the displacement δ of the virtual reference axle of each control module
iAnd velocity of displacement V
iAll identical, thereby can guarantee five kinematic axiss realization synchronous interactions.
In sum, digital control system that the present invention proposes and control method thereof have solved urgent for a long time multi-shaft interlocked control problem of wishing solution, and its basic comprising, basic technology are based on our country, have that cost is not high, control is simple, the advantage of dependable performance, owing to adopted microcomputer also to improve program capability greatly.This system can be used for the machining control of various complex-curved workpiece.
Claims (2)
1. economical multi-axis numerical control system, it is characterized in that forming by microcomputer and Single-chip Controlling unit combination, the number of control module is identical with the working motion axle number of required control, the output interface of computing machine links to each other with the input interface of each control module, and the output interface of each control module links to each other with the Be Controlled axial interface of numerically-controlled machine respectively.
2. the inter-linked controlling method of an economical multi-axis numerical control system, the combination that 1. will need to it is characterized in that the whole curved surface of processing work to resolve into the segment curved surface by mathematical operation, each segment curved surface is decomposed into the element displacement section of each kinematic axis again; 2. calculate the displacement Δ of each kinematic axis on each element displacement section
i, cutter processing sword is controlled in the allowed band by the error that multiaxial motion formed processing deriving face designs between the curved surface relatively, and makes the whole face of deriving smooth continuously; 3. each kinematic axis control module is set up a virtual common reference axle, and establish the reference axis displacement δ of each control module on each element displacement section
iAnd velocity of displacement V
iAll identical; 4. with the working control axial translation amount Δ of each kinematic axis control module
iWith respect to virtual reference axial translation amount δ
iCarry out the linear interpolation computing; 5. concern machining programming by above-mentioned linear interpolation, be input to each control module, corresponding kinematic axis is operated control by computing machine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96116810 CN1064149C (en) | 1996-01-15 | 1996-01-15 | Economical multi-axis numerical control system and inter-linked controlling method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96116810 CN1064149C (en) | 1996-01-15 | 1996-01-15 | Economical multi-axis numerical control system and inter-linked controlling method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1155111A true CN1155111A (en) | 1997-07-23 |
| CN1064149C CN1064149C (en) | 2001-04-04 |
Family
ID=5123766
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 96116810 Expired - Fee Related CN1064149C (en) | 1996-01-15 | 1996-01-15 | Economical multi-axis numerical control system and inter-linked controlling method thereof |
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| Country | Link |
|---|---|
| CN (1) | CN1064149C (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100442180C (en) * | 2003-05-14 | 2008-12-10 | 三菱电机株式会社 | Numerical control apparatus |
| CN100445910C (en) * | 2006-09-27 | 2008-12-24 | 成都宁江机床（集团）股份有限公司 | Method for one digital control shaft controlling multiple servo shafts and shaft expansion control device |
| CN100541374C (en) * | 2007-08-01 | 2009-09-16 | 暨南大学 | A kind of multiple axis linkage movement controller |
| CN1745966B (en) * | 2005-09-08 | 2010-05-05 | 南京航空航天大学 | Digital controlled development and creep ultrasonic grinding process and apparatus for engineer ceramic blade profiles |
| US7933677B2 (en) | 2006-08-04 | 2011-04-26 | Hurco Companies, Inc. | System and method for surface finish management |
| CN102554668A (en) * | 2010-12-13 | 2012-07-11 | 兄弟工业株式会社 | Numerical control device and method for controlling numerical control device |
| CN102654760A (en) * | 2012-05-29 | 2012-09-05 | 苏州新代数控设备有限公司 | Numerical value control method for machine tool |
| CN103752966A (en) * | 2014-01-28 | 2014-04-30 | 盐城工学院 | Blisk blade electrolytic machining intelligent control device and control method thereof |
| CN103926877A (en) * | 2014-04-08 | 2014-07-16 | 江门市新会区向日葵科技有限公司 | Multi-shaft linkage numerical control system and machining method thereof |
-
1996
- 1996-01-15 CN CN 96116810 patent/CN1064149C/en not_active Expired - Fee Related
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100442180C (en) * | 2003-05-14 | 2008-12-10 | 三菱电机株式会社 | Numerical control apparatus |
| CN1745966B (en) * | 2005-09-08 | 2010-05-05 | 南京航空航天大学 | Digital controlled development and creep ultrasonic grinding process and apparatus for engineer ceramic blade profiles |
| US7933677B2 (en) | 2006-08-04 | 2011-04-26 | Hurco Companies, Inc. | System and method for surface finish management |
| CN100445910C (en) * | 2006-09-27 | 2008-12-24 | 成都宁江机床（集团）股份有限公司 | Method for one digital control shaft controlling multiple servo shafts and shaft expansion control device |
| CN100541374C (en) * | 2007-08-01 | 2009-09-16 | 暨南大学 | A kind of multiple axis linkage movement controller |
| CN102554668A (en) * | 2010-12-13 | 2012-07-11 | 兄弟工业株式会社 | Numerical control device and method for controlling numerical control device |
| CN102554668B (en) * | 2010-12-13 | 2014-05-07 | 兄弟工业株式会社 | Numerical control device and method for controlling numerical control device |
| CN102654760A (en) * | 2012-05-29 | 2012-09-05 | 苏州新代数控设备有限公司 | Numerical value control method for machine tool |
| CN103752966A (en) * | 2014-01-28 | 2014-04-30 | 盐城工学院 | Blisk blade electrolytic machining intelligent control device and control method thereof |
| CN103752966B (en) * | 2014-01-28 | 2016-08-17 | 盐城工学院 | A kind of integrated impeller blade Electrolyzed Processing intelligent controlling device and control method thereof |
| CN103926877A (en) * | 2014-04-08 | 2014-07-16 | 江门市新会区向日葵科技有限公司 | Multi-shaft linkage numerical control system and machining method thereof |
| CN103926877B (en) * | 2014-04-08 | 2018-02-09 | 江门市新会区向日葵科技有限公司 | A kind of multi-axis linkage numerical control system and its processing method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1064149C (en) | 2001-04-04 |
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