CN102540971A - Five-shaft rotating precision compensation method for head-change type multiple five-shaft head numerical control machine tool - Google Patents

Five-shaft rotating precision compensation method for head-change type multiple five-shaft head numerical control machine tool Download PDF

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CN102540971A
CN102540971A CN2012100013055A CN201210001305A CN102540971A CN 102540971 A CN102540971 A CN 102540971A CN 2012100013055 A CN2012100013055 A CN 2012100013055A CN 201210001305 A CN201210001305 A CN 201210001305A CN 102540971 A CN102540971 A CN 102540971A
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axis
axle
head
accuracy
variable
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CN102540971B (en
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关铁达
李国春
林文
张扬
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Lv Gang
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Harbin Aircraft Industry Group Co Ltd
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Abstract

The invention belongs to the technical field of numerical control machine tools, and relates to a five-shaft rotating precision compensation method for a head-change type multiple five-shaft head numerical control machine tool. The method includes compensation steps as follows: measuring the five-shaft rotating precision error of the head-change type multiple five-shaft head numerical control machine tool, compiling a compensation program, and running the compensation program. The invention provides the five-shaft rotating precision compensation method for the head-change type multiple five-shaft head numerical control machine tool, thereby getting rid of the dependence on foreign machine tool manufacturers, lowering the cost, and improving the efficiency and the precision after the adjustment.

Description

The many five running accuracy compensation methodes of five spindle nose numerically-controlled machines of replaceable head
Technical field
The invention belongs to the numerical control machine tool technique field, relate to the many five running accuracy compensation methodes of five spindle nose numerically-controlled machines of a kind of replaceable head.
Background technology
In the aviation part was produced, for adapting to the characteristics that the aeronautical product material category is many, processing characteristics difference is big, the many five spindle nose large-size numerical control machines of replaceable head were used widely.Five running accuracies of many five spindle noses of replaceable head are to guarantee the normal most critical factor of using of high-precision numerical control machine.At present; Five running accuracies how domestic enterprise does not grasp many five spindle noses of replaceable head compensate; External lathe manufacturer is not also to the domestic data that this respect is provided; If five running accuracies of many five spindle noses of replaceable head go wrong, can only the outer lathe manufacturer of host country send engineering technical personnel to come on-the-spot adjustment.Generally to five running accuracy adjustment work of many five spindle noses of large-scale replaceable head, on the satisfactory basis of geometric precision of machine tool, the foreign project teacher needs 5 workaday could completion the time.Adjusted accuracy standard is: with 580 millimeters be radius of turn, five running accuracies can reach ± 0.05mm.Do like this, the adjustment of five running accuracies of many five spindle noses of replaceable head is depended on external lathe manufacturer, not only cost is high, and efficient is low, and adjusted accuracy standard is not high yet.
Summary of the invention
The objective of the invention is: propose the many five running accuracy compensation methodes of five spindle nose numerically-controlled machines of a kind of replaceable head,, reduce cost, raise the efficiency and adjusted precision to break away from dependence to external lathe manufacturer.
Technical scheme of the present invention is: the many five running accuracy compensation methodes of five spindle nose numerically-controlled machines of replaceable head is characterized in that the step of compensation is following:
1, measure the many five running accuracy error amounts of five spindle nose numerically-controlled machines of replaceable head:
1.1, measure the A axle of five spindle noses or the vertical running accuracy error amount of B axle:
Adopt 300 millimeters staight shank inspection rods and dial gauge; The A axle of five spindle noses or the vertical running accuracy of B axle are measured; Its error amount scope is 0mm/300mm~0.03mm/300mm; As exceed this scope; According to error amount; Adjustment by the relevant Siemens of A axle or B axle 34090 parameter values compensates the vertical precision of A axle or B axle, till meeting the demands;
1.2, measure the C axle horizontal positional precision error amount of five spindle noses:
Adopt 300 millimeters staight shank inspection rods and dial gauge; C axle horizontal positional precision error amount to five spindle noses is measured, and its error amount scope is: in 300mm, be not more than 0.03mm, as exceed this scope; According to error amount; Adjustment through the relevant Siemens of A axle or B axle 34090 parameter values compensates the vertical precision of C axle, the C axle horizontal positional precision of five spindle noses is compensated, till meeting the demands;
1.3, measure the kinematic accuracy error amount of the C axle of five spindle noses in X-direction:
Adopt 300 millimeters staight shank inspection rods and dial gauge; To the C axle of five spindle noses under the situation that five spinfunctions are opened, the C axle kinematic accuracy error amount that is rotated in X-direction measures; Its error range is: in 0 °~180 °, be not more than 0.03mm; As exceeding this scope, the adjustment through the relevant Siemens of C axle 24550 parameter values compensates the kinematic error precision that the C axle is rotated in X-direction.Till meeting the demands;
1.4, measure the kinematic accuracy error amount of the C axle of five spindle noses in Y direction:
Adopt 300 millimeters staight shank inspection rods and dial gauge; To the C axle of five spindle noses under the situation that five spinfunctions are opened, the C axle kinematic accuracy error amount that is rotated in Y direction measures; Its error range is: in 0 °~180 °, be not more than 0.03mm; As exceeding this scope, the adjustment through the relevant Siemens of C axle 24550 parameter values compensates the kinematic error precision that the C axle is rotated in Y direction.C axle to five spindle noses compensates in the kinematic accuracy of Y direction.Till meeting the demands;
1.5, measure the rotation center distance of five spindle noses: the rotation center distance of five spindle noses promptly five spindle nose rotation centers to main shaft nose distance;
Adopt 300 millimeters staight shank inspection rods and dial gauge; Rotation center distance to five spindle noses is measured, and error amount is not more than 0.01mm, as exceeds this scope; Adjustment through relevant Siemens 24500 parameter values is adjusted the rotation center range accuracy, till satisfying accuracy requirement;
1.6, adopt bulb inspection rod and dial gauge to the A axle or the B axle of five spindle noses spend 0+90 degree, 0 spend-90 degree and C axle 0 error when spending five rotations to 360 degree and measure, and use compensation program, the error during to five rotations compensates;
2, establishment compensation program: the establishment step of compensation program is following:
2.1, judge system variable, if axle number is 0, then this axle is the X axle;
2.2, the calling system variable, with lathe X shaft position variable assignments in the absolute variate-value of lathe " abs_pos ";
2.3, with the absolute variate-value of lathe measure before with it after every compensation rate cumulative errors of X axle value shifts [0] are superimposed, assignment is in the global variable of X axis coordinate system;
2.4, judge system variable: if axle number is 1, then this axle is the Y axle;
2.5, the calling system variable, with lathe Y shaft position variable assignments in the absolute variate-value of lathe " abs_pos ";
2.6, the assignment in the superimposed back of every compensation rate cumulative errors of Y axle value shifts [1] that the absolute variate-value of lathe is measured before with it is in the global variable of X axis coordinate system;
2.7, judge system variable, if axle number is 2, then this axle is the Z axle;
2.8, the calling system variable, with lathe Z shaft position variable assignments in the absolute variate-value of lathe " abs_pos ";
2.9, the assignment in the superimposed back of every compensation rate cumulative errors of Z axle value shifts [2] that the absolute variate-value of lathe is measured before with it is in the global variable of Z axis coordinate system;
3, operation compensation program:
Compensation program is input in Siemens's digital control system, move this program after, system automatically with the compensation rate assignment in system variable, accomplished the compensation of five running accuracies.
Advantage of the present invention is: proposed the many five running accuracy compensation methodes of five spindle nose numerically-controlled machines of a kind of replaceable head, broken away from the dependence to external lathe manufacturer, reduced cost, improved efficient and adjusted precision.
Embodiment
Explain further details in the face of the present invention down.The many five running accuracy compensation methodes of five spindle nose numerically-controlled machines of replaceable head is characterized in that the step of compensation is following:
1, measure the many five running accuracy error amounts of five spindle nose numerically-controlled machines of replaceable head:
1.1, measure the A axle of five spindle noses or the vertical running accuracy error amount of B axle:
Adopt 300 millimeters staight shank inspection rods and dial gauge; The A axle of five spindle noses or the vertical running accuracy of B axle are measured; Its error amount scope is 0mm/300mm~0.03mm/300mm; As exceed this scope; According to error amount; Adjustment by the relevant Siemens of A axle or B axle 34090 parameter values compensates the vertical precision of A axle or B axle, till meeting the demands;
1.2, measure the C axle horizontal positional precision error amount of five spindle noses:
Adopt 300 millimeters staight shank inspection rods and dial gauge; C axle horizontal positional precision error amount to five spindle noses is measured, and its error amount scope is: in 300mm, be not more than 0.03mm, as exceed this scope; According to error amount; Adjustment through the relevant Siemens of A axle or B axle 34090 parameter values compensates the vertical precision of C axle, the C axle horizontal positional precision of five spindle noses is compensated, till meeting the demands;
1.3, measure the kinematic accuracy error amount of the C axle of five spindle noses in X-direction:
Adopt 300 millimeters staight shank inspection rods and dial gauge; To the C axle of five spindle noses under the situation that five spinfunctions are opened, the C axle kinematic accuracy error amount that is rotated in X-direction measures; Its error range is: in 0 °~180 °, be not more than 0.03mm; As exceeding this scope, the adjustment through the relevant Siemens of C axle 24550 parameter values compensates the kinematic error precision that the C axle is rotated in X-direction.Till meeting the demands;
1.4, measure the kinematic accuracy error amount of the C axle of five spindle noses in Y direction:
Adopt 300 millimeters staight shank inspection rods and dial gauge; To the C axle of five spindle noses under the situation that five spinfunctions are opened, the C axle kinematic accuracy error amount that is rotated in Y direction measures; Its error range is: in 0 °~180 °, be not more than 0.03mm; As exceeding this scope, the adjustment through the relevant Siemens of C axle 24550 parameter values compensates the kinematic error precision that the C axle is rotated in Y direction.C axle to five spindle noses compensates in the kinematic accuracy of Y direction.Till meeting the demands;
1.5, measure the rotation center distance of five spindle noses: the rotation center distance of five spindle noses promptly five spindle nose rotation centers to main shaft nose distance;
Adopt 300 millimeters staight shank inspection rods and dial gauge; Rotation center distance to five spindle noses is measured, and error amount is not more than 0.01mm, as exceeds this scope; Adjustment through relevant Siemens 24500 parameter values is adjusted the rotation center range accuracy, till satisfying accuracy requirement;
1.6, adopt bulb inspection rod and dial gauge to the A axle or the B axle of five spindle noses spend 0+90 degree, 0 spend-90 degree and C axle 0 error when spending five rotations to 360 degree and measure, and use compensation program, the error during to five rotations compensates;
2, establishment compensation program: the establishment step of compensation program is following:
2.1, judge system variable, if axle number is 0, then this axle is the X axle;
2.2, the calling system variable, with lathe X shaft position variable assignments in the absolute variate-value of lathe " abs_pos ";
2.3, with the absolute variate-value of lathe measure before with it after every compensation rate cumulative errors of X axle value shifts [0] are superimposed, assignment is in the global variable of X axis coordinate system;
2.4, judge system variable: if axle number is 1, then this axle is the Y axle;
2.5, the calling system variable, with lathe Y shaft position variable assignments in the absolute variate-value of lathe " abs_pos ";
2.6, the assignment in the superimposed back of every compensation rate cumulative errors of Y axle value shifts [1] that the absolute variate-value of lathe is measured before with it is in the global variable of X axis coordinate system;
2.7, judge system variable, if axle number is 2, then this axle is the Z axle;
2.8, the calling system variable, with lathe Z shaft position variable assignments in the absolute variate-value of lathe " abs_pos ";
2.9, the assignment in the superimposed back of every compensation rate cumulative errors of Z axle value shifts [2] that the absolute variate-value of lathe is measured before with it is in the global variable of Z axis coordinate system;
3, operation compensation program:
Compensation program is input in Siemens's digital control system, move this program after, system automatically with the compensation rate assignment in system variable, accomplished the compensation of five running accuracies.
Embodiment 1
The many five spindle nose numerically-controlled machines of the large-sized gantry replaceable head that certain company of Italy produces; 11 meters on the big X axle of processing stroke, 3.2 meters on Y axle, 1.25 meters on Z axle, it adopts three main tappings, and one of them is electric main shaft five spindle noses; One is mechanical five spindle noses, and the another one main shaft is powerful three spindle noses.According to the needs of different materials processing, change corresponding main tapping.The location bias program of accomplishing these corresponding five rotation compensation in compensation back comes into force.Reach the requirement of five rotary processing precision.
1, measure the many five running accuracy error amounts of five spindle nose numerically-controlled machines of replaceable head:
1.1, measure the A axle of five spindle noses or the vertical running accuracy error amount of B axle:
Adopt 300 millimeters staight shank inspection rods and dial gauge; The A axle of five spindle noses or the vertical running accuracy of B axle are measured; Its error amount is 0.08mm/300mm; Exceed allowed band; According to error amount; Adjustment by parameter values such as the relevant Siemens 34090 of A axle or B axle compensates the vertical precision of A axle or B axle, and this error of compensation back is that 0.02mm/300mm meets the demands;
1.2, measure the C axle horizontal positional precision error amount of five spindle noses:
Adopt 300 millimeters staight shank inspection rods and dial gauge; C axle horizontal positional precision error amount to five spindle noses is measured, and its error amount is: be 0.07mm/300mm at 0 °~180 °, exceed allowed band; According to error amount; Adjustment through parameter values such as the relevant Siemenss 34090 of A axle or B axle compensates the vertical precision of C axle, and the C axle horizontal positional precision error amount of adjustment back five spindle noses is 0.015mm/300mm, meets the demands;
1.3, measure the kinematic accuracy error amount of the C axle of five spindle noses in X-direction:
Adopt 300 millimeters staight shank inspection rods and dial gauge; To the C axle of five spindle noses under the situation that five spinfunctions are opened, the C axle kinematic accuracy error amount that is rotated in X-direction measures; Its error range is: for 0.06mm, the adjustment through the relevant Siemens of C axle 24550 parameter values such as grade compensates the kinematic error precision that the C axle is rotated in X-direction in 0 °~180 °.Compensation back error is 0.01mm, meets the demands;
1.4, measure the kinematic accuracy error amount of the C axle of five spindle noses in Y direction:
Adopt 300 millimeters staight shank inspection rods and dial gauge; To the C axle of five spindle noses under the situation that five spinfunctions are opened, the C axle kinematic accuracy error amount that is rotated in Y direction measures; Its error amount is: 0 °~180 ° for 0.16mm, the adjustment through the relevant Siemens of C axle 24550 parameter values such as grade compensates the kinematic error precision that the C axle is rotated in Y direction.Compensation back error is 0.02mm, meets the demands;
1.5, measure the rotation center distance of five spindle noses: the rotation center distance of five spindle noses promptly five spindle nose rotation centers to main shaft nose distance.
Adopt 300 millimeters staight shank inspection rods and dial gauge; Rotation center distance to five spindle noses is measured; Error amount is 0.06mm, through the adjustment of relevant Siemens 24500 parameter values such as grade the rotation center range accuracy is adjusted, and the error amount after the compensation is 0.01 to satisfy accuracy requirement;
1.6, adopt bulb inspection rod and dial gauge that the spending 0 of five spindle noses+90 degree, 0 are spent-90 degree; Error during five rotations of C axle 0 to 360 degree is measured; To the A axle of five spindle noses or B axle 0 degree ,+error amount when 90 degree ,-90 degree rotations measures; Use compensation program, the error during to five rotations compensates.
1.2, the establishment compensation program:
At first under the situation that five s functions are carried out, carry out lathe and return Z-operation, lathe X axle in the coordinate display interface is shown as-0.08MM, and Y is shown as 0.05MM, and Z is shown as 0, and the numerical value that is shown is exactly the position deviation amount of lathe at each.Respectively departure is compensated in each the system variable through program.
Through system variable is judged, if axle number is 0, then this axle is the X axle;
The calling system variable arrives lathe X shaft position variable assignments in " abs_pos " (the absolute variate-value of lathe);
With the absolute variate-value of lathe with before we measure every compensation rate cumulative errors of X axle value shifts [0] be 0.08MM superimposed after, assignment is in the global variable of X axis coordinate system.
System variable is judged if axle number is 1, then this axle is the Y axle;
The calling system variable arrives lathe Y shaft position variable assignments in " abs_pos " (the absolute variate-value of lathe);
With the absolute variate-value of lathe with before we measure every compensation rate cumulative errors of Y axle value shifts [1] for-0.05 superimposed back assignment in the global variable of X axis coordinate system.
Judge system variable, if axle number is 2, then this axle is the Z axle;
The calling system variable arrives lathe Z shaft position variable assignments in " abs_pos " (the absolute variate-value of lathe);
Is that 0 superimposed back assignment to the global variable of Z axis coordinate system in we measure before at every compensation rate cumulative errors of Z axle value shifts [2] with the absolute variate-value of lathe.
Establishment compensation program subprogram is following:
Figure BSA00000650413400061
Figure BSA00000650413400071
1.3, the operation compensation program:
This compensation program is input in Siemens's digital control system, move this program after, system automatically with the compensation rate assignment in system variable, accomplished the compensation of five running accuracies.Use bulb inspection rod, to five spindle nose A axles, spend 0+90 degree, 0 spend-90 degree, the error during five rotations of C axle 0 to 360 degree is measured, with 580 millimeters be radius of turn, measure five running accuracy values of its five rotations and reach in the 0.015MM.Satisfied request for utilization.
Embodiment 2
The many five spindle nose numerically-controlled machines of the large-sized gantry replaceable head that certain company of Italy produces carry out five accuracy compensations to it.
1, measure the many five running accuracy error amounts of five spindle nose numerically-controlled machines of replaceable head:
1.1, measure the vertical running accuracy error amount of A axle of five spindle noses:
Adopt 300 millimeters staight shank inspection rods and dial gauge; The A axle of five spindle noses or the vertical running accuracy of B axle are measured; Its error amount is 0.15mm/300mm; Exceed allowed band; According to error amount; Adjustment by parameter values such as the relevant Siemens 34090 of A axle or B axle compensates the vertical precision of A axle or B axle, and this error of compensation back is that 0.015mm/300mm meets the demands;
1.2, measure the C axle horizontal positional precision error amount of five spindle noses:
Adopt 300 millimeters staight shank inspection rods and dial gauge; C axle horizontal positional precision error amount to five spindle noses is measured, and its error amount is: be 0.05mm/300mm at 0 °~180 °, exceed allowed band; According to error amount; Adjustment through parameter values such as the relevant Siemenss 34090 of A axle or B axle compensates the vertical precision of C axle, and the C axle horizontal positional precision error amount of adjustment back five spindle noses is 0.01mm/300mm, meets the demands;
1.3, measure the kinematic accuracy error amount of the C axle of five spindle noses in X-direction:
Adopt 300 millimeters staight shank inspection rods and dial gauge; To the C axle of five spindle noses under the situation that five spinfunctions are opened, the C axle kinematic accuracy error amount that is rotated in X-direction measures; Its error range is: for 0.04mm, the adjustment through the relevant Siemens of C axle 24550 parameter values such as grade compensates the kinematic error precision that the C axle is rotated in X-direction in 0 °~180 °.Compensation back error is 0.01mm, meets the demands;
1.4, measure the kinematic accuracy error amount of the C axle of five spindle noses in Y direction:
Adopt 300 millimeters staight shank inspection rods and dial gauge; To the C axle of five spindle noses under the situation that five spinfunctions are opened, the C axle kinematic accuracy error amount that is rotated in Y direction measures; Its error amount is: 0 °~180 ° for 0.10mm, the adjustment through the relevant Siemens of C axle 24550 parameter values such as grade compensates the kinematic error precision that the C axle is rotated in Y direction.Compensation back error is 0.01mm, meets the demands;
1.5, measure the rotation center distance of five spindle noses: the rotation center distance of five spindle noses promptly five spindle nose rotation centers to main shaft nose distance.
Adopt 300 millimeters staight shank inspection rods and dial gauge; Rotation center distance to five spindle noses is measured; Error amount is 0.03mm, through the adjustment of relevant Siemens 24500 parameter values such as grade the rotation center range accuracy is adjusted, and the error amount after the compensation is 0.01 to satisfy accuracy requirement;
1.6, adopt bulb inspection rod and dial gauge that the spending 0 of five spindle noses+90 degree, 0 are spent-90 degree; Error during five rotations of C axle 0 to 360 degree is measured; To the A axle of five spindle noses or B axle 0 degree ,+error amount when 90 degree ,-90 degree rotations measures; Use compensation program, the error during to five rotations compensates.
1.2, the establishment compensation program:
At first under the situation that five s functions are carried out, carry out lathe and return Z-operation, lathe X axle in the coordinate display interface is shown as 0.02MM, and Y is shown as 0.07MM, and Z is shown as 0, and the numerical value that is shown is exactly the position deviation amount of lathe at each.Respectively departure is compensated in each the system variable through program.
Through system variable is judged, if axle number is 0, then this axle is the X axle;
The calling system variable arrives lathe X shaft position variable assignments in " abs_pos " (the absolute variate-value of lathe);
With the absolute variate-value of lathe with before we measure every compensation rate cumulative errors of X axle value shifts [0] be 0.02MM superimposed after, assignment is in the global variable of X axis coordinate system.
System variable is judged if axle number is 1, then this axle is the Y axle;
The calling system variable arrives lathe Y shaft position variable assignments in " abs_pos " (the absolute variate-value of lathe);
Is that 0.07 superimposed back assignment to the global variable of X axis coordinate system in we measure before at every compensation rate cumulative errors of Y axle value shifts [1] with the absolute variate-value of lathe.
Judge system variable, if axle number is 2, then this axle is the Z axle;
The calling system variable arrives lathe Z shaft position variable assignments in " abs_pos " (the absolute variate-value of lathe);
Is that 0 superimposed back assignment to the global variable of Z axis coordinate system in we measure before at every compensation rate cumulative errors of Z axle value shifts [2] with the absolute variate-value of lathe.
Establishment compensation program subprogram is following:
Figure BSA00000650413400091
1.3, the operation compensation program:
This compensation program is input in Siemens's digital control system, move this program after, system automatically with the compensation rate assignment in system variable, accomplished the compensation of five running accuracies.Use bulb inspection rod, to five spindle nose A axles, spend 0+90 degree, 0 spend-90 degree, the error during five rotations of C axle 0 to 360 degree is measured, with 580 millimeters be radius of turn, measure five running accuracy values of its five rotations and reach in the 0.02MM.Satisfy request for utilization.
Embodiment 3
The many five spindle nose numerically-controlled machines of the large-sized gantry replaceable head that certain company of France produces are adjusted its five running accuracies through compensation program.
1, measure the many five running accuracy error amounts of five spindle nose numerically-controlled machines of replaceable head:
1.1, measure the vertical running accuracy error amount of the B axle of five spindle noses:
Adopt 300 millimeters staight shank inspection rods and dial gauge; Vertical running accuracy to the B axle of five spindle noses is measured; Its error amount is 0.05mm/300mm; Exceed allowed band; According to error amount; Adjustment by parameter values such as the relevant Siemens 34090 of A axle or B axle compensates the vertical precision of A axle or B axle, and this error of compensation back is that 0.02mm/300mm meets the demands;
1.2, measure the C axle horizontal positional precision error amount of five spindle noses:
Adopt 300 millimeters staight shank inspection rods and dial gauge; C axle horizontal positional precision error amount to five spindle noses is measured, and its error amount is: be 0.12mm/300mm at 0 °~180 °, exceed allowed band; According to error amount; Adjustment through parameter values such as the relevant Siemenss 34090 of A axle or B axle compensates the vertical precision of C axle, and the C axle horizontal positional precision error amount of adjustment back five spindle noses is 0.01mm/300mm, meets the demands;
1.3, measure the kinematic accuracy error amount of the C axle of five spindle noses in X-direction:
Adopt 300 millimeters staight shank inspection rods and dial gauge; To the C axle of five spindle noses under the situation that five spinfunctions are opened, the C axle kinematic accuracy error amount that is rotated in X-direction measures; Its error range is: for 0.035mm, the adjustment through the relevant Siemens of C axle 24550 parameter values such as grade compensates the kinematic error precision that the C axle is rotated in X-direction in 0 °~180 °.Compensation back error is 0.01mm, meets the demands;
1.4, measure the kinematic accuracy error amount of the C axle of five spindle noses in Y direction:
Adopt 300 millimeters staight shank inspection rods and dial gauge; To the C axle of five spindle noses under the situation that five spinfunctions are opened, the C axle kinematic accuracy error amount that is rotated in Y direction measures; Its error amount is: 0 °~180 ° for 0.06mm, the adjustment through the relevant Siemens of C axle 24550 parameter values such as grade compensates the kinematic error precision that the C axle is rotated in Y direction.Compensation back error is 0.015mm, meets the demands;
1.5, measure the rotation center distance of five spindle noses: the rotation center distance of five spindle noses promptly five spindle nose rotation centers to main shaft nose distance.
Adopt 300 millimeters staight shank inspection rods and dial gauge; Rotation center distance to five spindle noses is measured; Error amount is 0.08mm, through the adjustment of relevant Siemens 24500 parameter values such as grade the rotation center range accuracy is adjusted, and the error amount after the compensation is 0.02 to satisfy accuracy requirement;
1.6, adopt bulb inspection rod and dial gauge that the spending 0 of five spindle noses+90 degree, 0 are spent-90 degree; Error during five rotations of C axle 0 to 360 degree is measured; To the A axle of five spindle noses or B axle 0 degree ,+error amount when 90 degree ,-90 degree rotations measures; Use compensation program, the error during to five rotations compensates.
1.2, the establishment compensation program:
At first under the situation that five s functions are carried out, carry out lathe and return Z-operation, lathe X axle in the coordinate display interface is shown as-0.04MM, and Y is shown as 0.09MM, and Z is shown as 0.03, and the numerical value that is shown is exactly the position deviation amount of lathe at each.Respectively departure is compensated in each the system variable through program.
Through system variable is judged, if axle number is 0, then this axle is the X axle;
The calling system variable arrives lathe X shaft position variable assignments in " abs_pos " (the absolute variate-value of lathe);
With the absolute variate-value of lathe with before we measure at every compensation rate cumulative errors of X axle value shifts [0] be-after 0.04MM was superimposed, assignment was in the global variable of X axis coordinate system.
System variable is judged if axle number is 1, then this axle is the Y axle;
The calling system variable arrives lathe Y shaft position variable assignments in " abs_pos " (the absolute variate-value of lathe);
With the absolute variate-value of lathe with before we measure every compensation rate cumulative errors of Y axle value shifts [1] for the superimposed back of 0.09MM assignment in the global variable of X axis coordinate system.
Judge system variable, if axle number is 2, then this axle is the Z axle;
The calling system variable arrives lathe Z shaft position variable assignments in " abs_pos " (the absolute variate-value of lathe);
With the absolute variate-value of lathe with before we measure every compensation rate cumulative errors of Z axle value shifts [2] for the superimposed back of 0.03MM assignment in the global variable of Z axis coordinate system.
Establishment compensation program subprogram is following:
Figure BSA00000650413400111
1.3, the operation compensation program:
This compensation program is input in the digital control system, move this program after, system automatically with the compensation rate assignment in system variable, accomplished the compensation of five running accuracies.Use bulb inspection rod, to five spindle nose A axles, spend 0+90 degree, 0 spend-90 degree, the error during five rotations of C axle 0 to 360 degree is measured, with 580 millimeters be radius of turn, measure five running accuracy values of its five rotations and reach in the 0.02MM.Satisfy request for utilization.

Claims (1)

1.换头式多五轴头数控机床五轴旋转精度补偿方法,其特征在于,补偿的步骤如下:1. The five-axis rotation accuracy compensation method of the head-changing multi-five-axis CNC machine tool, which is characterized in that the compensation steps are as follows: 1.1、测量换头式多五轴头数控机床五轴旋转精度误差值:1.1. Measuring the five-axis rotation accuracy error value of the head-changing multi-five-axis head CNC machine tool: 1.1.1、测量五轴头的A轴或B轴的垂直旋转精度误差值:1.1.1. Measure the error value of the vertical rotation accuracy of the A-axis or B-axis of the five-axis head: 采用300毫米直柄检棒和百分表,对五轴头的A轴或B轴的垂直旋转精度进行测量,其误差值范围是0mm/300mm~0.03mm/300mm,如超出此范围,根据误差值,通过A轴或B轴相关西门子34090参数值的调整对A轴或B轴的垂直精度进行补偿,直至满足要求为止;Use a 300mm straight-handled inspection stick and a dial indicator to measure the vertical rotation accuracy of the A-axis or B-axis of the five-axis head. The error range is 0mm/300mm~0.03mm/300mm. If it exceeds this range, according to the error Value, through the adjustment of the A-axis or B-axis related Siemens 34090 parameter value to compensate the vertical accuracy of the A-axis or B-axis until the requirements are met; 1.1.2、测量五轴头的C轴水平位置精度误差值:1.1.2. Measure the C-axis horizontal position accuracy error value of the five-axis head: 采用300毫米直柄检棒和百分表,对五轴头的C轴水平位置精度误差值进行测量,其误差值范围是:在300mm内不大于0.03mm,如超出此范围,根据误差值,通过A轴或B轴相关西门子34090参数值的调整对C轴的垂直精度进行补偿,对五轴头的C轴水平位置精度进行补偿,直至满足要求为止;Use a 300mm straight-handle inspection rod and a dial indicator to measure the C-axis horizontal position accuracy error value of the five-axis head. The error value range is: within 300mm, it is not more than 0.03mm. If it exceeds this range, according to the error value, Compensate the vertical accuracy of the C-axis by adjusting the relevant Siemens 34090 parameter values of the A-axis or B-axis, and compensate the horizontal position accuracy of the C-axis of the five-axis head until the requirements are met; 1.1.3、测量五轴头的C轴在X轴方向的运动精度误差值:1.1.3. Measure the motion accuracy error value of the C-axis of the five-axis head in the X-axis direction: 采用300毫米直柄检棒和百分表,对五轴头的C轴在五轴旋转功能打开的情况下、C轴旋转在X轴方向的运动精度误差值进行测量,其误差范围是:在0°~180°内不大于0.03mm,如超出此范围,通过C轴相关西门子24550参数值的调整对C轴旋转在X轴方向的运动误差精度进行补偿。直至满足要求为止;Using a 300mm straight handle check stick and a dial indicator, measure the motion accuracy error value of the C-axis rotation in the X-axis direction of the C-axis of the five-axis head when the five-axis rotation function is turned on. The error range is: The range of 0°~180° is not more than 0.03mm. If it exceeds this range, the motion error accuracy of the C-axis rotation in the X-axis direction is compensated by adjusting the C-axis related Siemens 24550 parameter value. until the requirements are met; 1.1.4、测量五轴头的C轴在Y轴方向的运动精度误差值:1.1.4. Measure the motion accuracy error value of the C-axis of the five-axis head in the Y-axis direction: 采用300毫米直柄检棒和百分表,对五轴头的C轴在五轴旋转功能打开的情况下、C轴旋转在Y轴方向的运动精度误差值进行测量,其误差范围是:在0°~180°内不大于0.03mm,如超出此范围,通过C轴相关西门子24550参数值的调整对C轴旋转在Y轴方向的运动误差精度进行补偿。对五轴头的C轴在Y轴方向的运动精度进行补偿。直至满足要求为止;Using a 300mm straight-handled inspection rod and a dial indicator, measure the motion accuracy error value of the C-axis rotation in the Y-axis direction of the C-axis of the five-axis head when the five-axis rotation function is turned on. The error range is: Within 0°~180°, it is not more than 0.03mm. If it exceeds this range, the motion error accuracy of C-axis rotation in the Y-axis direction is compensated by adjusting the C-axis related Siemens 24550 parameter value. Compensate the motion accuracy of the C-axis of the five-axis head in the Y-axis direction. until the requirements are met; 1.1.5、测量五轴头的旋转中心距离:五轴头的旋转中心距离即五轴头旋转中心到主轴鼻端距离;1.1.5. Measure the distance from the rotation center of the five-axis head: the distance from the rotation center of the five-axis head is the distance from the rotation center of the five-axis head to the nose of the spindle; 采用300毫米直柄检棒和百分表,对五轴头的旋转中心距离进行测量,误差值不大于0.01mm,如超出此范围,通过相关西门子24500参数值的调整对旋转中心距离精度进行调整,直至满足精度要求为止;Use a 300mm straight-handle inspection rod and a dial indicator to measure the distance of the rotation center of the five-axis head, and the error value is not greater than 0.01mm. If it exceeds this range, adjust the accuracy of the rotation center distance by adjusting the relevant Siemens 24500 parameter values , until the accuracy requirements are met; 1.1.6、采用球头检棒和百分表对五轴头的A轴或B轴在0度到+90度、0度到-90度以及C轴0度到360度的五轴旋转时的误差进行测量,应用补偿程序,对五轴旋转时的误差进行补偿;1.1.6. When the A-axis or B-axis of the five-axis head is rotated from 0° to +90°, 0° to -90°, and C-axis from 0° to 360° by using the ball head inspection stick and the dial indicator The error is measured, and the compensation program is applied to compensate the error when the five-axis rotates; 1.2、编制补偿程序:补偿程序的编制步骤如下:1.2. Compilation of compensation program: The steps of compiling the compensation program are as follows: 1.2.1、判断系统变量,如果轴号为0,则该轴为X轴;1.2.1. Judging the system variable, if the axis number is 0, then the axis is the X axis; 1.2.2、调用系统变量,将机床X轴位置变量赋值到机床绝对变量值“abs_pos”中;1.2.2. Call the system variable and assign the X-axis position variable of the machine tool to the absolute variable value "abs_pos" of the machine tool; 1.2.3、将机床绝对变量值与之前测量的在X轴每项补偿量累计误差值shifts[0]相叠加后,赋值到X轴坐标系的全局变量中去;1.2.3. After superimposing the absolute variable value of the machine tool and the previously measured cumulative error value shifts[0] of each compensation amount on the X-axis, assign it to the global variable of the X-axis coordinate system; 1.2.4、判断系统变量:如果轴号为1,则该轴为Y轴;1.2.4. Determine the system variable: if the axis number is 1, then the axis is the Y axis; 1.2.5、调用系统变量,将机床Y轴位置变量赋值到机床绝对变量值“abs_pos”中;1.2.5. Call the system variable and assign the Y-axis position variable of the machine tool to the absolute variable value "abs_pos" of the machine tool; 1.2.6、将机床绝对变量值与之前测量的在Y轴每项补偿量累计误差值shifts[1]相叠加后赋值到X轴坐标系的全局变量中去;1.2.6. Superimpose the absolute variable value of the machine tool with the previously measured cumulative error value shifts[1] of each compensation amount on the Y-axis, and then assign it to the global variable of the X-axis coordinate system; 1.2.7、判断系统变量,如果轴号为2,则该轴为Z轴;1.2.7. Judging the system variable, if the axis number is 2, then the axis is the Z axis; 1.2.8、调用系统变量,将机床Z轴位置变量赋值到机床绝对变量值“abs_pos”中;1.2.8. Call the system variable and assign the Z-axis position variable of the machine tool to the absolute variable value "abs_pos" of the machine tool; 1.2.9、将机床绝对变量值与之前测量的在Z轴每项补偿量累计误差值shifts[2]相叠加后赋值到Z轴坐标系的全局变量中去;1.2.9. Superimpose the absolute variable value of the machine tool with the previously measured cumulative error value shifts[2] of each compensation amount on the Z axis, and then assign it to the global variable of the Z axis coordinate system; 1.3、运行补偿程序:1.3. Run the compensation program: 将补偿程序输入到西门子数控系统中,运行此程序后,系统自动将补偿量赋值到系统变量中去,完成了五轴旋转精度的补偿。Input the compensation program into the Siemens CNC system. After running the program, the system automatically assigns the compensation amount to the system variable, completing the compensation of the five-axis rotation accuracy.
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