CN101274422A - Method for realizing digital control grinding roller curve by NC programming - Google Patents
Method for realizing digital control grinding roller curve by NC programming Download PDFInfo
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- CN101274422A CN101274422A CNA2008100686699A CN200810068669A CN101274422A CN 101274422 A CN101274422 A CN 101274422A CN A2008100686699 A CNA2008100686699 A CN A2008100686699A CN 200810068669 A CN200810068669 A CN 200810068669A CN 101274422 A CN101274422 A CN 101274422A
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Abstract
The invention discloses a method for realizing the numerical control of grinding roller curves by using an NC program, which pertains to the method by adopting the NC program to control grinding processing, and aims at providing a method that adopts the current NC program to realize the numerical control of the grinding roller curves by means of the definition setting of a R parameter under the state that a numerical control system runs automatically. The method comprises steps of defining variable, transferring curve data, judging grinding type, inspecting the curve data, pre-treating the data before grinding, reading technological parameters, judging processing modes, finishing grinding, judging whether to end the grinding or not, judging the time of strokes, inspecting technological data, judging whether to relocate or not, grinding in positive direction or negative direction, calculating curves, commutating processing, finishing grinding, calculating of the finishing of the grinding and quitting position calculation, etc. The method of the invention needs no specialists to write the NC program, can write program and store a plurality of grinding curves, groups of technological parameters of grinding and the technological parameters of disc finishing, and can be applied to Siemens middle and high grade numerical control systems programmed by adopting G code.
Description
Technical field:
The present invention relates to a kind of method, relate in particular to a kind of method that realizes the numerical control grinding roller curve with the NC programming, by means of the definition setting of R parameter with numerical control program control grinding roller curve.
Background technology:
Roll grinder is the indispensable important production equipments of industry such as metallurgy, papermaking, rubber and printing and dyeing, and it is widely used in the cylindrical rolls of grinding curve roll formings such as the various sine curves of grinding (convexity or concave), straight line, tapering.Roll grinder has some characteristics of cylindrical grinder, but its transmission principle is more complex, for convexity or the concave grinding of finishing roll forming, grinding machine except the emery wheel that possesses the cylindrical grinder requirement with workpiece is done relative gyration, also require planker when roller spare is vertically reciprocating, bistrique is done the roller spare radial feed displacement of trace, makes emery wheel opposed roller spare surface forward/back a certain amount of (promptly middle a large amount), thereby goes out required curve roll surface at roller spare surfacing.
At present, realize that such compound motion has dual mode: the one, adopt mechanically operated method, the another kind of method that generates the grinding curve by the exploitation of senior language establishment such as VB, VC grinding machine numerical control special-purpose software artificial intelligence.Yet respectively there are some problems in above-mentioned two kinds of methods: adopt mechanically operated method, and the mechanical mechanism complexity, the grinding curve is adjusted inaccuracy, inconvenient operation; And the software artificial intelligence that adopts the high-level language establishment generates the method for grinding curve, requires digital control system must have opening, and programming is complicated.
Summary of the invention:
At the above-mentioned defective that exists in the prior art, the present invention aims to provide a kind of method that realizes the numerical control grinding roller curve with the NC programming, it is to adopt international NC programming, under the state that digital control system is moved automatically,, realize the program technic of roll shape curves such as numerical control grinding sine curve, straight line or tapering straight line fast by means of the definition setting of R parameter; It can simplify the loaded down with trivial details programming of artificial intelligence.
To achieve these goals, the present invention by the following technical solutions, concrete steps are as follows:
1) program begins, and utilizes R parameter list input roll characteristic parameter and grinding process parameters, selects the AUTO mode, presses start key and starts the grinding main program, calls the main subprogram of grinding;
2) variable-definition, zero clearing, the integer variable of using in the define program, string variable, real number type variable, and utilize the SET instruction with the relevant parameter zero clearing;
3) curve data transmits, and calls parameter of curve and transmits subprogram, and corresponding curvilinear characteristic data in the described R parameter list are sent in the corresponding variable, is used for down-stream;
4) grinding type is judged, at first judge and currently will carry out grinding and still repair, next differentiates the current grinding type that will carry out is straight line, sine or tapering, and assignment is given corresponding character type variable then, carries out interactive prompting and shows on HMI as the NC program is in service;
5) curve data check is judged correcting errors of following curvilinear characteristic parameter: height, perhaps tapering length, tapering molecule, tapering denominator in height, curve half-angle, the emery wheel in length of curve, the curve; Carry out then if make mistakes that alarm content is calculated and handle, and assignment gives corresponding character type variable, carry out interactive prompting and on HMI, show as the NC program is in service;
6) data preliminary treatment before the mill, intermediate variable zero clearing or assignment to using before grinding, remember current machining state: grinding or finishing and assignment are given corresponding character type variable, carry out interactive prompting and on HMI, show as the NC program is in service, judge whether the mill frame needs the amount of retreating, and calculate the amount of retreating amount;
7) read technological parameter, read current grinding process parameters and assignment and give variables corresponding;
8) judge whether current processing mode changes, and is, then jump to the preceding data preliminary treatment of mill; , then do not continue down to carry out;
9) grinding dressing, judgement are grinding roller or trimming wheel;
10) further judge whether to finish grinding, be, then jump to EP (end of program) by agreed terms; , then do not continue down to carry out;
11) judge whether the current number of strokes is zero, is, then jump to operation numbering calculation procedure section and technological parameter and transmit subprogram; , then do not continue down to carry out;
12) process data check is to the judgement of correcting errors of following technological parameter: planker speed, Continuous Compensation amount, pick feed amount, the number of strokes; Carry out then if make mistakes that alarm content is calculated and handle, and assignment gives corresponding character type variable, carry out interactive prompting and on HMI, show as the NC program is in service;
13) judge whether reorientation, judge whether to carry out again the location of grinding roller starting point or trimming wheel starting point, be, then arrive fast and specify start position; , then do not jump to the discriminating direction block;
14) planker (Z axle) forward grinding control is carried out in forward grinding, jumps to curve sine/tapering calculation procedure section;
15) just commutate, processing is just commutating: carry out pick feed;
16) planker (Z axle) negative sense grinding control is carried out in negative sense grinding, jumps to described curve sine/tapering calculation procedure section;
17) curve calculation is carried out the calculating of sine or tapering curve according to the processing type of determining before the grinding;
18) commutation is handled, and finishes Continuous Compensation, the zero clearing of middle control parameter;
19) grinding finishes, and grinding finishes to calculate, and stops emery wheel and workpiece, jumps to and withdraws from the position calculation block; And assignment gives corresponding character type variable, carries out interactive prompting and shows on HMI as the NC program is in service;
20) withdraw from position calculation, calculate the planker (Z axle) and mill frame (X-axis) coordinate that withdraw from when quitting a program;
21) EP (end of program).
Compared with the prior art, the present invention is owing to adopted international NC programming, utilize necessary roll characteristic and the grinding process parameters of R parameter list input, can realize roll shape grinding curves such as sine curve, straight line or tapering straight line, therefore need not the G code program of writing of specialty, saved a large amount of troublesome operation of numerical control programming, optimized the exploitation of grinding machine special function, and simplified mechanical transmission structure; In addition, the present invention has following characteristics:
1. can be applied in the medium-to-high grade digital control system of Siemens's employing G code programming;
2. can programme and store some sinusoidal straight line or tapering grinding curve;
3. can programme and store many group grinding process parameterses and crushing technological parameter;
4. grinding process can make up by the technological parameter numbering arbitrarily, and can make amendment in grinding;
5. have grinding parameter of curve, technological parameter and grinding flow process Presentation Function, can show the relevant information and the running status of current grinding in real time.
Description of drawings:
Fig. 1 is a flow chart of the present invention.
The specific embodiment:
The invention will be further described below in conjunction with specific embodiment:
As shown in Figure 1, concrete steps are as follows:
1) program begins, and utilizes R parameter list input roll characteristic parameter and grinding process parameters, selects the AUTO mode, presses start key and starts the grinding main program, calls the main subprogram of grinding; Wherein, the R parameter list is:
R0～R9: current grinding process parameters
The current operation numbering of R0-----, scope: be 0～9
The current planker speed of R1-----, scope: 0～4000mm/min
The current Continuous Compensation of R2-----, scope: 0～1.2mm/min
The feeding of R3-----current period, scope: 0～0.12mm/ time
The current number of strokes of R4-----, scope: 0～100 time
The current operation combination of R9-----, scope: 00000～099999999, every 0～9
R10～R19: current grinding parameter of curve
R10-----current curves numbering, scope: 0～9
R11-----current curves length, scope: 0～Z axle effective length mm; Or current tapering length, scope: 0～Z axle effective length mm
High in the R12-----current curves, scope: 0～1.3mm; Or current tapering molecule, scope :+1/-1
R13-----current curves half-angle, scope: 0～90 degree; Or current tapering denominator, scope: 5～30
High in the current emery wheel of R14-----, scope: 0～1.3mm
The current grinding wheel width of R15-----, scope: 0～120mm
The X coordinate of the current workpiece grinding of R16-----starting point (headstock end)
The Z coordinate of the current workpiece grinding of R17-----starting point (headstock end)
The X coordinate of the current crushing starting point of R18-----(headstock end)
The Z coordinate of the current crushing starting point of R19-----(headstock end)
R20～R99: program calculating parameter
R100～R199: the parameter that technology is 0～9 group, totally 10 groups, wherein crushing technological parameter group # is 9
* represent digital 0---9
R1*0-----technology numbering, scope: 0～9
R1*1-----planker speed, scope: 50～4000mm/min
The R1*2-----Continuous Compensation, scope: 0～1.2mm/min
The R1*3-----pick feed, scope: 0～0.12mm/ time
The R1*4-----number of strokes, scope: 0～100 time
R200～R249: curve numbering 0～4 is sinusoidal parameter, totally 5;
R250～R299: curve numbering 5～9 is the parameter of tapering curve, totally 5;
* represent digital 0---9, identical with the curve numerical digit
R2*0-----curve numbering, scope: 0～9
The R2*1-----length of curve, scope: 0～Z axle effective length mm; Or tapering length, scope: 0～Z axle effective length mm
High in the R2*2-----curve, scope: 0～1.3mm; Or tapering molecule; Scope :+1/-1
R2*3-----curve half-angle, scope: 0～90 degree; Or the tapering denominator, scope: 5～30
High in the R2*4-----emery wheel, scope: 0～1.3mm
The R2*5-----grinding wheel width, scope: 0～120mm,
The X coordinate of R2*6-----workpiece grinding starting point (headstock end)
The Z coordinate of R2*7-----workpiece grinding starting point (headstock end)
The X coordinate of R2*8-----crushing starting point (headstock end)
The Z coordinate of R2*9-----crushing starting point (headstock end)
The main subroutine name of described grinding is: Grinding_MJK_XF.spf, it comprise 1. call parameter of curve transmit subprogram: DataTransfer.spf, 2. operation numbering calculation procedure section, 3. technological parameter transmits subprogram, 4. alarm content calculating and handling procedure, 5. discriminating direction block;
2) variable-definition, zero clearing, the integer variable of using in the define program, string variable, real number type variable, and utilize the SET instruction with the relevant parameter zero clearing;
Integer variable:
def?int?TotalP_Z
def?int?MoveP_Z
def?int?MoveP
；def?int?MoveP_P
def?int?MoveP_M
def?int?MoveP_B
def?int?PMVar1，PMVar2
def?int?ComeAboutMark
def?int?RVar_0
DEF?INT?OCVar1，OCVar2，OCVar3，OCVar4，CycFac1
DEF?INT?OCNo_[10]
DEF?INT?CountMarker
DEF?INT?GrindMarker1，GrindMarker2，GrindMarker3
String variable:
def?String[11]ProgMarker
def?String[10]GrindType1
def?String[10]GrindType2
def?String[100]GrindType3
def?String[10]GrindType4
def?String[100]GrindType5
def?String[100]GrindType6
def?String[100]AlarmVar
def?String[100]ParamDisplay
Real number type variable:
def?real?Con_1
def?real?Con_2
def?real?Con_3
def?real?Con_4
def?real?MidCountVar_1
def?real?MidCountVar_2
def?real?MidCountVar_3
def?real?MidCountVar_4
def?real?MidCountVar_5
Def real MidCountVar_X; The X starting point
Def real MidCountVar_Z; The Z starting point
def?real?X_BackOff1，X_BackOff2
def?real?DataVar_[10]
def?real?ParamVar_[10]
def?real?SpeedVar
The parameter zero clearing, R1----R8
R[1]＝SET(,,,,,,,)
3) curve data transmits, and calls parameter of curve and transmits subprogram, and corresponding curvilinear characteristic data in the described R parameter list are sent in the corresponding variable, is used for down-stream;
4) grinding type is judged, at first utilizing conditional statement to judge currently will carry out grinding and still repair, next differentiates current which kind of the grinding type that will carry out is straight line, sine or tapering, assignment is given corresponding character type variable then, carries out interactive prompting and shows on HMI as the NC program is in service; As:
If?DataVar_[2]＝＝0
GrindType2=" straight line "＜＜DataVar_[0]＜＜" # "
Else
GrindType2=" sine "＜＜DataVar_[0]＜＜" # "
Endif
5) curve data check utilizes conditional statement that correcting errors of following curvilinear characteristic parameter judged: height, perhaps tapering length, tapering molecule, tapering denominator in height, curve half-angle, the emery wheel in length of curve, the curve; Carry out then if make mistakes that alarm content is calculated and handle, and assignment gives corresponding character type variable, carry out interactive prompting and on HMI, show as the NC program is in service; As:
IF(DataVar_[1]＜＝0)Or(DataVar_[1]＞＝10000)
AlarmVar=AlarmVar＜＜" length of curve R11 "
Endif
6) data preliminary treatment before the mill, intermediate variable zero clearing or assignment to using before grinding, remember current machining state: grinding or finishing and assignment are given corresponding character type variable, carry out interactive prompting and on HMI, show as the NC program is in service, judge whether the mill frame needs to retreat, and calculate the amount of retreating; As:
GrindType6=GrindType2＜＜" R15 width "＜＜DataVar_[5]＜＜" high among the R14
The DataVar_[4 of "＜＜]＜＜" the R13 half-angle "＜＜DataVar_[3]＜＜" "＜＜GrindType4
7) read technological parameter, read current grinding process parameters and utilize the assignment statement assignment to give variables corresponding;
8) utilize conditional statement to judge whether current processing mode changes, and is, then jump to the preceding data preliminary treatment of mill; , then do not continue down to carry out;
9) grinding dressing, utilizing conditional statement to judge is grinding roller or trimming wheel;
10) utilize conditional statement further to judge whether to finish grinding, be, then jump to EP (end of program) by agreed terms; , then do not continue down to carry out;
11) utilize conditional statement to judge whether the current number of strokes is zero, is, then jump to operation numbering calculation procedure section and technological parameter and transmit subprogram; , then do not continue down to carry out;
12) process data check utilizes conditional statement to the judgement of correcting errors of following technological parameter: planker speed, Continuous Compensation amount, pick feed amount, the number of strokes; Carry out then if make mistakes that alarm content is calculated and handle, and assignment gives corresponding character type variable, carry out interactive prompting and on HMI, show as the NC program is in service; As:
If(ParamVar_[1]＜0)OR(ParamVar_[1]＞4000)
AlarmVar=AlarmVar＜＜" planker speed R01 "
Endif
13) judge whether reorientation, utilize conditional statement to judge whether to carry out again the location of grinding roller starting point or trimming wheel starting point, be, then arrive fast and specify start position; , then do not jump to the discriminating direction block;
14) planker (Z axle) forward grinding control is carried out in forward grinding, utilizes Gotof redirect statement realization program to jump to curve sine/tapering calculation procedure section;
15) just commutate, processing is just commutating: carry out pick feed;
16) planker (Z axle) negative sense grinding control is carried out in negative sense grinding, utilizes Gotof redirect statement realization program to jump to described curve sine/tapering calculation procedure section;
17) curve calculation, the sine or the curves such as straight line or tapering of the required grinding of roll are divided into plurality of sections in Z shaft length direction by certain-length or certain point number, utilize FOR Do statement to generate sine or straight line or tapering curve, and finish the interpolation operation of sine or straight line or tapering curve by G90 G01;
18) commutation is handled, and finishes Continuous Compensation, the zero clearing of middle control parameter;
19) grinding finishes, and grinding finishes to calculate, and stops emery wheel and workpiece, jumps to and withdraws from the position calculation block; And assignment gives corresponding character type variable, carries out interactive prompting and shows on HMI as the NC program is in service; As:
Grinding finishes MSG (", terminal point X="＜＜X_BackOff1＜＜", Z="＜＜DataVar_[9])
20) withdraw from position calculation, calculate the planker (Z axle) and mill frame (X-axis) coordinate that withdraw from when quitting a program, and utilize conditional statement to judge, utilize the assignment statement assignment;
21) EP (end of program).
In the above-described embodiments, described operation numbering calculation procedure section is the combination according to the grinding process numbering of input in advance, calculate the operation numbering that current need call, and deduct current operation numbering from the combination of operation numbering automatically, for calling one section program of preparing next time:
OCProg1：
OCVar1＝0
OCVar3＝TRUNC(ParamVar_[9])
IF(ParamVar_[9]<>OCVar3)Or(ParamVar_[9]＞10000000000)
AlarmVar=AlarmVar＜＜" operation combination R09 "
GOTOF?alarm1
Endif
OCProg2：
OCVar2＝TRUNC(OCVar3/10)
OCVar4＝(OCVar3/10-OCVar2)*10
OCVar3＝OCVar2
OCNo_[OCVar1]＝OCVar4
ParamVar_[9]＝OCVar3
OCVar1＝OCVar1+1
ParamVar_[0]＝OCVar4
Described technological parameter transmits subprogram: ParameterTransfer.spf
Described discriminating direction block is one and judges statement that it can recall current planker traffic direction, as not reorientating, then jumps to corresponding planker traffic direction;
Described alarm content is calculated and handling procedure is that alarm content, the parameter of makeing mistakes are calculated, and the assignment statement assignment is to one section program of respective symbols type variable, and it can be used as, and the NC program is in service carries out interactive prompting and show on HMI.
Claims (1)
1. realize the method for numerical control grinding roller curve with NC programming for one kind, it is characterized in that: concrete steps are as follows:
1) program begins, and utilizes R parameter list input roll characteristic parameter and grinding process parameters, selects the AUTO mode, presses start key and starts the grinding main program, calls the main subprogram of grinding;
2) variable-definition, zero clearing, the integer variable of using in the define program, string variable, real number type variable, and utilize the SET instruction with the relevant parameter zero clearing;
3) curve data transmits, and calls parameter of curve and transmits subprogram, and corresponding curvilinear characteristic data in the described R parameter list are sent in the corresponding variable, is used for down-stream;
4) grinding type is judged, at first judge and currently will carry out grinding and still repair, next differentiates the current grinding type that will carry out is straight line, sine or tapering, and assignment is given corresponding character type variable then, carries out interactive prompting and shows on HMI as the NC program is in service;
5) curve data check is judged correcting errors of following curvilinear characteristic parameter: height, perhaps tapering length, tapering molecule, tapering denominator in height, curve half-angle, the emery wheel in length of curve, the curve; Carry out then if make mistakes that alarm content is calculated and handle, and assignment gives corresponding character type variable, carry out interactive prompting and on HMI, show as the NC program is in service;
6) data preliminary treatment before the mill, intermediate variable zero clearing or assignment to using before grinding, remember current machining state: grinding or finishing, and assignment is given corresponding character type variable, carry out interactive prompting and on HMI, show as the NC program is in service, judge whether the mill frame needs to retreat, and calculate the amount of retreating;
7) read technological parameter, read current grinding process parameters and assignment and give variables corresponding;
8) judge whether current processing mode changes, and is, then jump to the preceding data preliminary treatment of mill; , then do not continue down to carry out;
9) grinding dressing, judgement are grinding roller or trimming wheel;
10) further judge whether to finish grinding, be, then jump to EP (end of program) by agreed terms; , then do not continue down to carry out;
11) judge whether the current number of strokes is zero, is, then jump to operation numbering calculation procedure section and technological parameter and transmit subprogram; , then do not continue down to carry out;
12) process data check is to the judgement of correcting errors of following technological parameter: planker speed, Continuous Compensation amount, pick feed amount, the number of strokes; Carry out then if make mistakes that alarm content is calculated and handle, and assignment gives corresponding character type variable, carry out interactive prompting and on HMI, show as the NC program is in service;
13) judge whether reorientation, judge whether to carry out again the location of grinding roller starting point or trimming wheel starting point, be, then arrive fast and specify start position; , then do not jump to the discriminating direction block;
14) planker forward grinding control is carried out in forward grinding, jumps to curve sine/tapering calculation procedure section;
15) just commutate, processing is just commutating: carry out pick feed;
16) planker negative sense grinding control is carried out in negative sense grinding, jumps to described curve sine/tapering calculation procedure section;
17) curve calculation is carried out the calculating of sine or tapering curve according to the processing type of determining before the grinding;
18) commutation is handled, and finishes Continuous Compensation, the zero clearing of middle control parameter;
19) grinding finishes, and the grinding end data is handled, and stops emery wheel and workpiece, jumps to and withdraws from the position calculation block; And assignment gives corresponding character type variable, carries out interactive prompting and shows on HMI as the NC program is in service;
20) withdraw from position calculation, calculate the planker and the mill rack coordinate that withdraw from when quitting a program;
21) EP (end of program).
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| CNA2008100686699A CN101274422A (en) | 2008-03-24 | 2008-03-24 | Method for realizing digital control grinding roller curve by NC programming |
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| CNA2008100686699A CN101274422A (en) | 2008-03-24 | 2008-03-24 | Method for realizing digital control grinding roller curve by NC programming |
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| CN101840217A (en) * | 2010-05-27 | 2010-09-22 | 江苏安泰动力机械有限公司 | Method for controlling numerical control program with logic judgment function |
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| CN102452042A (en) * | 2010-10-28 | 2012-05-16 | 西门子工厂自动化工程有限公司 | Machining method and device |
| CN102581712A (en) * | 2012-03-27 | 2012-07-18 | 首钢总公司 | Method for grinding plain roll from plain profile into CVC (continuous variable crown) profile |
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| CN102452026A (en) * | 2010-10-25 | 2012-05-16 | 宝山钢铁股份有限公司 | Method for compensating for roll grinding |
| CN102452042B (en) * | 2010-10-28 | 2013-06-19 | 西门子工厂自动化工程有限公司 | Machining method and device |
| CN102452042A (en) * | 2010-10-28 | 2012-05-16 | 西门子工厂自动化工程有限公司 | Machining method and device |
| CN103302586B (en) * | 2012-03-12 | 2017-04-12 | 福裕事业股份有限公司 | Control method of grinding machines and control system applying same |
| CN103302586A (en) * | 2012-03-12 | 2013-09-18 | 福裕事业股份有限公司 | Control method of grinding machines and control system applying same |
| CN102581712A (en) * | 2012-03-27 | 2012-07-18 | 首钢总公司 | Method for grinding plain roll from plain profile into CVC (continuous variable crown) profile |
| CN103076760A (en) * | 2012-12-20 | 2013-05-01 | 长春轨道客车股份有限公司 | Sliding chute milling method |
| CN103076760B (en) * | 2012-12-20 | 2015-11-11 | 长春轨道客车股份有限公司 | A kind of milling method of chute |
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