CN107368034A - Digit Control Machine Tool composition error measuring system and its measuring method based on On-machine Test - Google Patents
Digit Control Machine Tool composition error measuring system and its measuring method based on On-machine Test Download PDFInfo
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- CN107368034A CN107368034A CN201710717753.8A CN201710717753A CN107368034A CN 107368034 A CN107368034 A CN 107368034A CN 201710717753 A CN201710717753 A CN 201710717753A CN 107368034 A CN107368034 A CN 107368034A
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Classifications
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/18—Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form
- G05B19/401—Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form characterised by control arrangements for measuring, e.g. calibration and initialisation, measuring workpiece for machining purposes
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/30—Nc systems
- G05B2219/34—Director, elements to supervisory
- G05B2219/34242—For measurement only
Abstract
A kind of Digit Control Machine Tool composition error measuring system and its measuring method based on On-machine Test.System includes Digit Control Machine Tool, contact temperature-measuring device, positioning measuring device, computer, temperature measuring equipment；Advantage of the present invention：First, real-time On-machine Test is accomplished to NC Machine Error and mismachining tolerance, solves the problems, such as that NC Machine Error measurement is cumbersome, measurement data is single, error measurement data is final error.Second, before mismachining tolerance is measured, amendment is measured to NC Machine Error, solves the measurement error caused by NC Machine Error in chance error difference measurements.3rd, this measuring system is simple, efficient, economical compared with the high three coordinate measuring machine of price, a full set of machine tool error measuring apparatus.4th, machine tool error data are associated with temperature, Digit Control Machine Tool kinematic parameter, and mismachining tolerance data are associated with temperature, machined parameters, and record obtains more accurately data in real time, and good foundation is provided for error compensation.
Description
Technical field
The invention belongs to NC Machine Error field of measuring technique, more particularly, to a kind of numerical control machine based on On-machine Test
Bed composition error measuring system and its measuring method.
Background technology
High accuracy manufacture has extensive demand in fields such as space flight, automobile, ships, parts highly-efficient processing and its quick
Precisely detection is the target that these industries are pursued.
Detection means most-often used in industry has following several at present：Three coordinate measuring machine：Because the device is offline
Measurement, it is therefore desirable to which secondary positioning, so machining benchmark is difficult to keep consistent with last time, time-consuming so as to cause detection.Laser
Detection means：Detection process is cumbersome, and installation process is complicated.Therefore said apparatus can not meet growing fast accurate inspection
Survey demand.
On-machine Test system can save the process that part is carried, is repeatedly loaded, when reducing tool-setting error and the wait of lathe
Between.
At present, On-machine Test is only capable of measuring mismachining tolerance, and method is to carry out exemplar processing first with Digit Control Machine Tool, then
Some calibration points of sample surface after processing are detected again, the mismachining tolerance data of lathe are digitally controlled with this, but this is only capable of
Compensate the error of current workpiece.Because Digit Control Machine Tool is a nonlinear time_varying system, the error under different temperatures, machined parameters
Difference, therefore can not accomplish accurately to compensate.Further, since the gauge head of On-machine Test is loaded on Digit Control Machine Tool, therefore number
The error of control lathe influences whether the precision of measurement, so need that the geometric error of Digit Control Machine Tool is measured and compensated, it is right
In mismachining tolerance, not only to consider the geometric error of workpiece, it is also necessary to consider the internal heat resource of Digit Control Machine Tool, environment temperature plus
Work parameter and motion servo parameter.But still lack corresponding device at present.
The content of the invention
In order to solve the above problems, integrate and miss it is an object of the invention to provide a kind of Digit Control Machine Tool based on On-machine Test
Difference measurements system and its measuring method.
In order to achieve the above object, the Digit Control Machine Tool composition error measuring system bag provided by the invention based on On-machine Test
Include Digit Control Machine Tool, contact temperature-measuring device, positioning measuring device, computer, temperature measuring equipment；Wherein positioning measuring device with
Dismountable mode is fixed on the workbench of Digit Control Machine Tool；Contact temperature-measuring device is by each rotation on Digit Control Machine Tool
Multiple temperature sensors on axle and singlechip group into；Temperature measuring equipment is by being arranged on the multiple red of surrounding on the outside of Digit Control Machine Tool
Outer temperature measurer and USB delivery module composition；The inside of computer is provided with error information processing module, respectively with the control of Digit Control Machine Tool
Device, contact temperature-measuring device and temperature measuring equipment electrical connection processed.
Described multiple infrared radiation thermometers are to be separately positioned on the first infrared radiation thermometer of Digit Control Machine Tool both sides and the 3rd red
Outer temperature measurer and the second infrared radiation thermometer for being arranged on the front of Digit Control Machine Tool 1.
Described positioning measuring device include positioning framework, multiple standard balls, multiple gauge block supports, multiple clamping devices,
More connecting rods and multiple gauge blocks；Wherein positioning framework is horizontally disposed rectangular frame, and four corners on surface are respectively with one
The standard ball that a upper half sphere is measuring surface is installed in the lower end threaded connection of root connecting rod, the upper end of every connecting rod；Positioning
Four side edge surfaces of framework install two gauge block supports respectively, and the upper end of each gauge block support installs one by clamping device
Gauge block；Gauge block is cuboid structure, and length direction is consistent with the side edge length direction of the positioning framework where it, multiple gauge blocks
Respectively first to the 8th gauge block, wherein first, second gauge block is located on the front end side of positioning framework, the three, the 4th gauge blocks
On the rear end side of positioning framework, the five, the 6th gauge blocks are located on the left side of positioning framework, the seven, the 8th gauge block positions
In in the right edge of positioning framework.
A lateral surface trajectory is provided with the middle part of the lateral surface of described gauge block along its length, in lateral surface trajectory
Portion is interval with the first to the 3rd measuring point；Upper surface middle part is provided with a upper surface track line along its length；In left and right end face
The 4th measuring point and the 5th measuring point are respectively equipped with the heart；Medial surface is provided with corresponding with the above-mentioned first to the 3rd measuring point the
Six to the 8th measuring points；Measuring point on gauge block or so end face is designated as DPij=(x, y, z), i=1,2,3,4,5,6,7,8；J=1,2；
Outer surface measuring point is designated as WPij=(x, y, z), i=1,2,3,4,5,6,7,8；J=1,2,3 ...；Lateral surface trajectory is designated as
WTi, i=1,2,3,4,5,6,7,8；Upper surface track line is designated as STi, i=1,2,3,4,5,6,7,8；Medial surface measuring point is designated as
NPij=(x, y, z), i=1,2,3,4,5,6,7,8；J=1,2,3 ...；Wherein i represents the sequence number of gauge block, and j represents measuring point
Sequence number.
The second described measuring point is located at the midpoint of lateral surface trajectory, first and the 3rd measuring point be located at the second measuring point respectively
Both sides and the distance between the second measuring point be 80mm.
The measuring method of Digit Control Machine Tool composition error measuring system provided by the invention based on On-machine Test is included by suitable
The following steps that sequence is carried out：
Step 1) gathers the temperature on Digit Control Machine Tool 1 around moving parts using first, second, third infrared radiation thermometer in real time
Degrees of data, for monitoring the change in moving parts temperature field, computer is then sent to by USB delivery modules；Utilize simultaneously
Temperature sensor gathers the temperature data of each rotary shaft in real time, and computer is sent to after then being handled by single-chip microcomputer；
Positioning measuring device is fixed on the workbench of Digit Control Machine Tool by step 2), and the measurement that changed the outfit on Digit Control Machine Tool
Head, then proceed by machine tool error measurement and mismachining tolerance measurement；
Step 3) is measured using measurement head to the measuring point on the first gauge block, the second gauge block lateral surface, medial surface, then
Measuring point on 5th gauge block, the 6th gauge block or so end face is measured, and scans measurement trajectory, afterwards to the 3rd gauge block,
Measuring point on 4th gauge block lateral surface, medial surface measures, then again to the survey on the 7th gauge block, the 8th gauge block or so end face
Point measures, and scans measurement trajectory；
WP11-NP11=W；WP12-NP12=W；WP13-NP13=W；
WP21-NP21=W；WP22-NP22=W；WP23-NP23=W；
DP51-DP52=L；DP61-DP62=L；
WT5, WT6 are the curve for deviateing straight line；
WP31-NP31=W；WP32-NP32=W；WP33-NP33=W；
WP41-NP41=W；WP42-NP42=W；WP43-NP43=W；
DP71-DP72=L；DP81-DP82=L；
WT7, WT8 are a curve, are straight line when error free；X on lathe is digitally controlled by above-mentioned error information
Position error, the geometric error of axle；Error processing module in computer sends error compensation data to Digit Control Machine Tool, carries out
The compensation of the position error, geometric error of X-axis；
Step 4) is measured using measurement head to the measuring point of the 5th gauge block, the 6th gauge block lateral surface, medial surface, then right
Measuring point on 3rd gauge block, the 4th gauge block or so end face measures, and scans measurement trajectory, afterwards to the 7th gauge block,
Measuring point on eight gauge block lateral surfaces, medial surface measures, then again to the measuring point on the first gauge block, the second gauge block or so end face
Measure, and scan measurement trajectory；
WP51-NP51=W；WP52-NP52=W；WP53-NP53=W；
WP61-NP61=W；WP62-NP62=W；WP63-NP63=W；
DP31-DP32=L；DP41-DP42=L；
WT3, WT4 are the curve for deviateing straight line；
WP71-NP71=W；WP72-NP72=W；WP73-NP73=W；
WP81-NP81=W；WP82-NP82=W；WP83-NP83=W；
DP71-DP72=L；DP81-DP82=L；
WT1, WT2 are a curve, are straight line when error free；Y on lathe is digitally controlled by above-mentioned error information
Position error, the geometric error of axle；Error processing module in computer sends error compensation data to Digit Control Machine Tool, carries out
The compensation of the position error, geometric error of Y-axis；
The trajectory that step 5) is scanned on the first to the 8th gauge block upper surface of measurement using measurement head, ST1-ST8 are eight
Curve, it is straight line when error free, and tracing point Z coordinate is identical, tries to achieve position error, geometric error, to the first gauge block
The center measuring point of upper surface measures, the motor of Z axis 36 ° of rotation, then measure, a corotating every time on Digit Control Machine Tool
, 10 measuring points are measured altogether and are designated as Pi=(x, y, z), wherein i=1-10, represent measuring point sequence number, P1-P10 is without spin by 360 °
Same coordinate is should be during error, when there is rotation error, the coordinate of institute's measuring point should be intercepted by horizontal plane ellipse by oblique cone
Point on circular section, so as to obtain rotation error；Error processing module in computer sends error compensation data to numerical control
Lathe, carry out the compensation of the position error, geometric error of Z axis, rotation error compensation is carried out to rotary shaft；
Step 6) is 0 ° to standard ball episphere latitude using measurement head, 30 °, 60 ° of circumference measure, every group 10
Measuring point, every group of measured measuring point should be that Z coordinate is identical and point on same circumference, thus obtain lathe error of interpolation；
Error processing module in computer sends error compensation data to Digit Control Machine Tool, carries out the compensation of lathe error of interpolation；
Step 7) is loaded workpiece to be processed, and the cutter that changes the outfit on Digit Control Machine Tool, and then workpiece is processed, and is processed
After the completion of, change the outfit measurement head, repeat step 3)-step 6) is to detect and correct the error of Digit Control Machine Tool 1, then along processing
Path point on trajectory measurement workpiece surface, obtain the mismachining tolerance of workpiece；Error processing module in computer mends error
Repay data and send Digit Control Machine Tool to, carry out the compensation of machine tooling error；
Error information processing module in step 8) computer to the error information of Digit Control Machine Tool that measures every time with first,
The temperature of second, third infrared radiation thermometer and temperature sensor measurement, the feed speed of Digit Control Machine Tool are associated and recorded；It will add
Work error information with the temperature of first, second, third infrared radiation thermometer and temperature sensor measurement, machined parameters are associated and remember
Record, detected by continuous lathe composition error, the lathe synthesis obtained under different temperatures, feed speed, machined parameters is missed
Difference.
Digit Control Machine Tool composition error measuring system and its measuring method provided by the invention based on On-machine Test have such as
Lower advantage：First, real-time On-machine Test is accomplished to NC Machine Error and mismachining tolerance, it is numerous to solve NC Machine Error measurement
Trivial, the problem of measurement data is single, error measurement data is final error.Second, before mismachining tolerance is measured, to Digit Control Machine Tool
Error measures amendment, solves the measurement error caused by NC Machine Error in chance error difference measurements.3rd, with selling
The high three coordinate measuring machine of valency, a full set of machine tool error measuring apparatus are simple compared to this measuring system, efficient, economical.4th, machine
Bed error information is associated with temperature, Digit Control Machine Tool kinematic parameter, and mismachining tolerance data are associated with temperature, machined parameters, real
Shi Jilu obtains more accurately data, and good foundation is provided for error compensation.
Brief description of the drawings
Fig. 1 is the Digit Control Machine Tool composition error measuring system structural representation provided by the invention based on On-machine Test.
Fig. 2 is positioning measuring device in the Digit Control Machine Tool composition error measuring system provided by the invention based on On-machine Test
Structural representation.
Gauge block and clamping device schematic diagram in positioning measuring device when Fig. 3 is from front shown in Fig. 2.
Gauge block and clamping device schematic diagram in positioning measuring device when Fig. 4 is from the back side shown in Fig. 2.
Embodiment
Below in conjunction with the accompanying drawings with specific embodiment to the Digit Control Machine Tool composition error provided by the invention based on On-machine Test
Measuring system and its measuring method are described in detail.
As shown in Fig. 1-Fig. 4, the Digit Control Machine Tool composition error measuring system provided by the invention based on On-machine Test includes
Digit Control Machine Tool 1, contact temperature-measuring device 2, positioning measuring device 3, computer 4, temperature measuring equipment；Wherein positioning measuring device
3 may be detachably retained on the workbench of Digit Control Machine Tool 1；Contact temperature-measuring device 2 is by each on Digit Control Machine Tool 1
Multiple temperature sensors in individual rotary shaft and singlechip group into；Temperature measuring equipment is by being arranged on the outside surrounding of Digit Control Machine Tool 1
Multiple infrared radiation thermometer and USB delivery modules composition；The inside of computer 4 is provided with error information processing module, respectively with number
Control controller, contact temperature-measuring device 2 and the temperature measuring equipment electrical connection of lathe 1.
Described multiple infrared radiation thermometers are the first infrared radiation thermometer 5.1 and for being separately positioned on the both sides of Digit Control Machine Tool 1
Three infrared radiation thermometers 5.3 and the second infrared radiation thermometer 5.2 for being arranged on the front of Digit Control Machine Tool 1.
Described positioning measuring device 3 includes positioning framework 21, multiple standard balls 22, multiple gauge block supports 23, multiple folders
Tight device 24, more connecting rods 25 and multiple gauge blocks；Wherein positioning framework 21 is horizontally disposed rectangular frame, four of surface
Lower end of the corner respectively with a connecting rod 25 is threadedly coupled, and a upper half sphere is installed as measurement in the upper end of every connecting rod 25
The standard ball 22 in face；Four side edge surfaces of positioning framework 21 install two gauge block supports 23 respectively, each gauge block support 23
Upper end one gauge block is installed by clamping device 24；Gauge block is cuboid structure, length direction and the positioning framework where it
21 side edge length direction is consistent, and multiple gauge blocks are respectively the first to the 8th gauge block 11-18, wherein first, second gauge block 11,12
On the front end side of positioning framework 21, the three, the 4th gauge blocks 13,14 are located on the rear end side of positioning framework 21, the 5th,
6th gauge block 15,16 on the left side of positioning framework 21, the seven, the 8th gauge blocks 17, and 18 are located at the right side of positioning framework 21
Bian Shang.
A lateral surface trajectory 41, lateral surface trajectory 41 are provided with along its length in the middle part of the lateral surface of described gauge block
Middle part be interval with the first to the 3rd measuring point 31-33；Upper surface middle part is provided with a upper surface track line 35 along its length；
The 4th measuring point 39 and the 5th measuring point 34 are respectively equipped with left and right end face center；Medial surface is provided with and above-mentioned first to the
The the 6th to the 8th corresponding three measuring point 31-33 measuring point 36-38；Measuring point 34,39 on gauge block or so end face be designated as DPij=(x,
Y, z), i=1,2,3,4,5,6,7,8；J=1,2；Outer surface measuring point 31-33 is designated as WPij=(x, y, z), i=1,2,3,4,5,
6,7,8；J=1,2,3 ...；Lateral surface trajectory 41 is designated as WTi, i=1,2,3,4,5,6,7,8；Upper surface track line 35 is remembered
For STi, i=1,2,3,4,5,6,7,8；Medial surface measuring point 36-38 is designated as NPij=(x, y, z), i=1,2,3,4,5,6,7,8；
J=1,2,3 ...；Wherein i represents the sequence number of gauge block, and j represents the sequence number of measuring point.
The second described measuring point 32 is located at the midpoint of lateral surface trajectory 41, and first and the 3rd measuring point 31,33 difference positions
In the both sides of the second measuring point 32 and the distance between the second measuring point 32 be 80mm.
Include entering in order using the measuring method of the above-mentioned Digit Control Machine Tool composition error measuring system based on On-machine Test
Capable the following steps：
Step 1) is moved on collection Digit Control Machine Tool 1 in real time using first, second, third infrared radiation thermometer 5.1,5.2,5.3
Temperature data around part, for monitoring the change in moving parts temperature field, calculating is then sent to by USB delivery modules
Machine 4；Gather the temperature data of each rotary shaft in real time using temperature sensor simultaneously, sent to after then being handled by single-chip microcomputer
Computer 4；
Positioning measuring device 3 is fixed on the workbench of Digit Control Machine Tool 1 by step 2), and the survey that changed the outfit on Digit Control Machine Tool 1
Head is measured, then proceeds by machine tool error measurement and mismachining tolerance measurement；
Step 3) is measured using measurement head to the measuring point on the first gauge block 11, the lateral surface of the second gauge block 12, medial surface,
Then the measuring point on the 5th gauge block 15, the end face of the 6th gauge block 16 or so is measured, and scans measurement trajectory, afterwards to
Three gauge blocks 13, the lateral surface of the 4th gauge block 14, the measuring point on medial surface measure, then again to the 7th gauge block 17, the 8th gauge block
Measuring point on 18 or so end faces measures, and scans measurement trajectory；
WP11-NP11=W；WP12-NP12=W；WP13-NP13=W；
WP21-NP21=W；WP22-NP22=W；WP23-NP23=W；
DP51-DP52=L；DP61-DP62=L；
WT5, WT6 are the curve for deviateing straight line；
WP31-NP31=W；WP32-NP32=W；WP33-NP33=W；
WP41-NP41=W；WP42-NP42=W；WP43-NP43=W；
DP71-DP72=L；DP81-DP82=L；
WT7, WT8 are a curve, are straight line when error free；X on lathe 1 is digitally controlled by above-mentioned error information
Position error, the geometric error of axle；Error processing module in computer 4 sends error compensation data to Digit Control Machine Tool 1, enters
The compensation of the position error, geometric error of row X-axis；
Step 4) is measured using measurement head to the measuring point of the 5th gauge block 15, the lateral surface of the 6th gauge block 16, medial surface, so
The measuring point on the 3rd gauge block 13, the end face of the 4th gauge block 14 or so is measured afterwards, and scans measurement trajectory, afterwards to the 7th
Gauge block 17, the lateral surface of the 8th gauge block 18, the measuring point on medial surface measure, then again to the first gauge block 11, the second gauge block 12
Measuring point on the end face of left and right measures, and scans measurement trajectory；
WP51-NP51=W；WP52-NP52=W；WP53-NP53=W；
WP61-NP61=W；WP62-NP62=W；WP63-NP63=W；
DP31-DP32=L；DP41-DP42=L；
WT3, WT4 are the curve for deviateing straight line；
WP71-NP71=W；WP72-NP72=W；WP73-NP73=W；
WP81-NP81=W；WP82-NP82=W；WP83-NP83=W；
DP71-DP72=L；DP81-DP82=L；
WT1, WT2 are a curve, are straight line when error free；Y on lathe 1 is digitally controlled by above-mentioned error information
Position error, the geometric error of axle；Error processing module in computer 4 sends error compensation data to Digit Control Machine Tool 1, enters
The compensation of the position error, geometric error of row Y-axis；
The trajectory that step 5) is scanned on the first to the 8th gauge block 11-18 upper surfaces of measurement using measurement head, ST1-ST8 are
Eight curves, it is straight line when error free, and tracing point Z coordinate is identical, position error, geometric error is tried to achieve, to first
The center measuring point of the upper surface of gauge block 11 measures, the motor of Z axis 36 ° of rotation, then measure, one every time on Digit Control Machine Tool 1
360 ° of corotating, 10 measuring points being measured altogether and are designated as Pi=(x, y, z), wherein i=1-10, represent measuring point sequence number, P1-P10 exists
Same coordinate is should be during error without spin, when there is rotation error, the coordinate of institute's measuring point should be cut by oblique cone by horizontal plane
Point on the oval cross section taken, so as to obtain rotation error；Error processing module in computer 4 transmits error compensation data
To Digit Control Machine Tool 1, carry out the compensation of the position error, geometric error of Z axis, rotation error compensation is carried out to rotary shaft；
Step 6) is 0 ° to the episphere latitude of standard ball 22 using measurement head, 30 °, 60 ° of circumference measure, every group 10
Individual measuring point, every group of measured measuring point should be that Z coordinate is identical and point on same circumference, thus obtain lathe interpolation mistake
Difference；Error processing module in computer 4 sends error compensation data to Digit Control Machine Tool 1, carries out the benefit of lathe error of interpolation
Repay；
Step 7) is loaded workpiece to be processed, and the cutter that changes the outfit on Digit Control Machine Tool 1, and then workpiece is processed, added
After the completion of work, change the outfit measurement head, repeat step 3)-step 6) is to detect and correct the error of Digit Control Machine Tool 1, then along adding
Path point on work trajectory measurement workpiece surface, obtains the mismachining tolerance of workpiece；Error processing module in computer 4 is by error
Offset data sends Digit Control Machine Tool 1 to, carries out the compensation of machine tooling error；
Error information processing module in step 8) computer 4 is to the error information of Digit Control Machine Tool 1 that measures every time and the
First, the temperature of second, third infrared radiation thermometer 5.1,5.2,5.3 and temperature sensor measurement, the feed speed phase of Digit Control Machine Tool 1
Associate and record；Mismachining tolerance data and first, second, third infrared radiation thermometer 5.1,5.2,5.3 and temperature sensor are surveyed
The temperature of amount, machined parameters are associated and recorded, and are detected by continuous lathe composition error, obtain in different temperatures, feeding
Lathe composition error under speed, machined parameters.
Claims (6)
- A kind of 1. Digit Control Machine Tool composition error measuring system based on On-machine Test, it is characterised in that：Described measuring system bag Include Digit Control Machine Tool (1), contact temperature-measuring device (2), positioning measuring device (3), computer (4), temperature measuring equipment；It is wherein fixed Level measuring arrangement (3) may be detachably retained on the workbench of Digit Control Machine Tool (1)；Contact temperature-measuring device (2) is by pacifying Multiple temperature sensors in each rotary shaft on Digit Control Machine Tool (1) and singlechip group into；Temperature measuring equipment is by setting Multiple infrared radiation thermometer and USB delivery modules composition of surrounding on the outside of Digit Control Machine Tool (1)；The inside of computer (4), which is provided with, misses Difference data processing module, the controller with Digit Control Machine Tool (1), contact temperature-measuring device (2) and temperature measuring equipment are electrically connected respectively Connect.
- 2. the Digit Control Machine Tool composition error measuring system according to claim 1 based on On-machine Test, it is characterised in that：Institute The multiple infrared radiation thermometers stated are to be separately positioned on first infrared radiation thermometer (5.1) of Digit Control Machine Tool (1) both sides and the 3rd infrared Temperature measurer (5.3) and the second infrared radiation thermometer (5.2) being arranged in front of Digit Control Machine Tool (1).
- 3. the Digit Control Machine Tool composition error measuring system according to claim 1 based on On-machine Test, it is characterised in that：Institute The positioning measuring device (3) stated includes positioning framework (21), multiple standard balls (22), multiple gauge block supports (23), multiple clampings Device (24), more connecting rods (25) and multiple gauge blocks；Wherein positioning framework (21) is horizontally disposed rectangular frame, surface Lower end of four corners respectively with a connecting rod (25) is threadedly coupled, and an episphere is installed in the upper end of every connecting rod (25) Face is the standard ball (22) of measuring surface；Four side edge surfaces of positioning framework (21) install two gauge block supports (23) respectively, often The upper end of individual gauge block support (23) one gauge block is installed by clamping device (24)；Gauge block is cuboid structure, length direction Consistent with the side edge length direction of the positioning framework (21) where it, multiple gauge blocks are respectively the first to the 8th gauge block (11-18), Wherein first, second gauge block (11,12) is located on the front end side of positioning framework (21), and the three, the 4th gauge blocks (13,14) are located at On the rear end side of positioning framework (21), the five, the 6th gauge blocks (15,16) are located on the left side of positioning framework (21), the 7th, 8th gauge block (17,18) is located in the right edge of positioning framework (21).
- 4. the Digit Control Machine Tool composition error measuring system according to claim 3 based on On-machine Test, it is characterised in that：Institute A lateral surface trajectory (41), the middle part of lateral surface trajectory (41) are provided with along its length in the middle part of the lateral surface for the gauge block stated It is interval with the first to the 3rd measuring point (31-33)；Upper surface middle part is provided with a upper surface track line (35) along its length； The 4th measuring point (39) and the 5th measuring point (34) are respectively equipped with left and right end face center；Medial surface is provided with and above-mentioned first Sixth to eightth measuring point (36-38) corresponding to the 3rd measuring point (31-33)；Measuring point (34,39) note on gauge block or so end face For DPij=(x, y, z), i=1,2,3,4,5,6,7,8；J=1,2；Outer surface measuring point (31-33) is designated as WPij=(x, y, z), I=1,2,3,4,5,6,7,8；J=1,2,3 ...；Lateral surface trajectory (41) is designated as WTi, i=1,2,3,4,5,6,7,8；On Surface tracks line (35) is designated as STi, i=1,2,3,4,5,6,7,8；Medial surface measuring point (36-38) is designated as NPij=(x, y, z), i =1,2,3,4,5,6,7,8；J=1,2,3 ...；Wherein i represents the sequence number of gauge block, and j represents the sequence number of measuring point.
- 5. the Digit Control Machine Tool composition error measuring system according to claim 4 based on On-machine Test, it is characterised in that：Institute The second measuring point (32) stated is located at the midpoint of lateral surface trajectory (41), first and the 3rd measuring point (31,33) respectively positioned at the Both sides of two measuring points (32) and the distance between the second measuring point (32) is 80mm.
- 6. a kind of measuring method of the Digit Control Machine Tool composition error measuring system based on On-machine Test as claimed in claim 1, It is characterized in that：Described measuring method includes the following steps carried out in order：Step 1) is gathered and moved on Digit Control Machine Tool (1) in real time using first, second, third infrared radiation thermometer (5.1,5.2,5.3) Temperature data around part, for monitoring the change in moving parts temperature field, calculating is then sent to by USB delivery modules Machine (4)；Gather the temperature data of each rotary shaft in real time using temperature sensor simultaneously, transmitted after then being handled by single-chip microcomputer Give computer (4)；Positioning measuring device (3) is fixed on the workbench of Digit Control Machine Tool (1) by step 2), and is changed the outfit on Digit Control Machine Tool (1) Measurement head, then proceed by machine tool error measurement and mismachining tolerance measurement；Step 3) is measured using measurement head to the measuring point on the first gauge block (11), the second gauge block (12) lateral surface, medial surface, Then the measuring point on the 5th gauge block (15), the 6th gauge block (16) left and right end face is measured, and scans measurement trajectory, afterwards Measuring point on 3rd gauge block (13), the 4th gauge block (14) lateral surface, medial surface is measured, then again to the 7th gauge block (17), the measuring point on the 8th gauge block (18) left and right end face measures, and scans measurement trajectory；WP11-NP11=W；WP12-NP12=W；WP13-NP13=W；WP21-NP21=W；WP22-NP22=W；WP23-NP23=W；DP51-DP52=L；DP61-DP62=L；WT5, WT6 are the curve for deviateing straight line；WP31-NP31=W；WP32-NP32=W；WP33-NP33=W；WP41-NP41=W；WP42-NP42=W；WP43-NP43=W；DP71-DP72=L；DP81-DP82=L；WT7, WT8 are a curve, are straight line when error free；X-axis on lathe (1) is digitally controlled by above-mentioned error information Position error, geometric error；Error processing module in computer (4) sends error compensation data to Digit Control Machine Tool (1), Carry out the compensation of the position error, geometric error of X-axis；Step 4) is measured using measurement head to the measuring point of the 5th gauge block (15), the 6th gauge block (16) lateral surface, medial surface, so The measuring point on the 3rd gauge block (13), the 4th gauge block (14) left and right end face is measured afterwards, and scans measurement trajectory, it is right afterwards 7th gauge block (17), the 8th gauge block (18) lateral surface, the measuring point on medial surface measure, then again to the first gauge block (11), Measuring point on second gauge block (12) left and right end face measures, and scans measurement trajectory；WP51-NP51=W；WP52-NP52=W；WP53-NP53=W；WP61-NP61=W；WP62-NP62=W；WP63-NP63=W；DP31-DP32=L；DP41-DP42=L；WT3, WT4 are the curve for deviateing straight line；WP71-NP71=W；WP72-NP72=W；WP73-NP73=W；WP81-NP81=W；WP82-NP82=W；WP83-NP83=W；DP71-DP72=L；DP81-DP82=L；WT1, WT2 are a curve, are straight line when error free；Y-axis on lathe (1) is digitally controlled by above-mentioned error information Position error, geometric error；Error processing module in computer (4) sends error compensation data to Digit Control Machine Tool 1, enters The compensation of the position error, geometric error of row Y-axis；The trajectory that step 5) is scanned on first to the 8th gauge block (11-18) upper surface of measurement using measurement head, ST1-ST8 eight Bar curve, it is straight line when error free, and tracing point Z coordinate is identical, tries to achieve position error, geometric error, to the first amount The center measuring point of block (11) upper surface measures, the motor of Z axis 36 ° of rotation, then measure every time on Digit Control Machine Tool (1), It is rotated by 360 ° altogether, measures 10 measuring points altogether and be designated as Pi=(x, y, z), wherein i=1-10, represents measuring point sequence number, P1-P10 Same coordinate is should be in error without spin, when there is rotation error, the coordinate of institute's measuring point should be oblique cone by horizontal plane institute Point on the oval cross section of interception, so as to obtain rotation error；Error processing module in computer (4) is by error compensation data Send Digit Control Machine Tool (1) to, carry out the compensation of the position error, geometric error of Z axis, rotation error compensation is carried out to rotary shaft；Step 6) is 0 ° to standard ball (22) episphere latitude using measurement head, 30 °, 60 ° of circumference measure, every group 10 Measuring point, every group of measured measuring point should be that Z coordinate is identical and point on same circumference, thus obtain lathe error of interpolation； Error processing module in computer (4) sends error compensation data to Digit Control Machine Tool (1), carries out the benefit of lathe error of interpolation Repay；Step 7) is loaded workpiece to be processed, and the cutter that changes the outfit on Digit Control Machine Tool (1), and then workpiece is processed, and is processed After the completion of, change the outfit measurement head, repeat step 3)-step 6) is to detect and correct the error of Digit Control Machine Tool (1), then along adding Path point on work trajectory measurement workpiece surface, obtains the mismachining tolerance of workpiece；Error processing module in computer (4) will be by mistake Poor offset data sends Digit Control Machine Tool (1) to, carries out the compensation of machine tooling error；Error information processing module in step 8) computer (4) is to the error information of Digit Control Machine Tool (1) that measures every time and the First, the temperature of second, third infrared radiation thermometer (5.1,5.2,5.3) and temperature sensor measurement, the feeding speed of Digit Control Machine Tool (1) Degree is associated and records；Mismachining tolerance data and first, second, third infrared radiation thermometer (5.1,5.2,5.3) and temperature are passed The temperature of sensor measurement, machined parameters are associated and recorded, and detect, are obtained in not equality of temperature by continuous lathe composition error Lathe composition error under degree, feed speed, machined parameters.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111650881A (en) * | 2020-05-12 | 2020-09-11 | 武汉理工大学 | Method, system and storage medium for predicting and compensating positioning error of numerical control machine |
| CN113021077A (en) * | 2019-12-09 | 2021-06-25 | 北京精雕科技集团有限公司 | Precision calibration method for on-machine measurement system of numerical control machine tool |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1055812A (en) * | 1991-02-01 | 1991-10-30 | 天津大学 | The one dimension spherical column mensuration of 21 mechanism errors of three coordinate measuring machine and the self checking method of measurement mechanism and device |
| CN101913103A (en) * | 2010-08-19 | 2010-12-15 | 上海理工大学 | Method for measuring angular errors of rotating table of numerical control machine |
| CN105382631A (en) * | 2015-12-15 | 2016-03-09 | 福建工程学院 | Equipment and method for detecting error of rotating shaft of five-axis numerical control machine tool |
| WO2017055637A1 (en) * | 2015-10-02 | 2017-04-06 | Deckel Maho Seebach Gmbh | Method and device for measuring a numerically controlled machine tool |
| CN207164572U (en) * | 2017-08-21 | 2018-03-30 | 天津理工大学 | Digit Control Machine Tool composition error measuring system based on On-machine Test |
-
2017
- 2017-08-21 CN CN201710717753.8A patent/CN107368034A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1055812A (en) * | 1991-02-01 | 1991-10-30 | 天津大学 | The one dimension spherical column mensuration of 21 mechanism errors of three coordinate measuring machine and the self checking method of measurement mechanism and device |
| CN101913103A (en) * | 2010-08-19 | 2010-12-15 | 上海理工大学 | Method for measuring angular errors of rotating table of numerical control machine |
| WO2017055637A1 (en) * | 2015-10-02 | 2017-04-06 | Deckel Maho Seebach Gmbh | Method and device for measuring a numerically controlled machine tool |
| CN105382631A (en) * | 2015-12-15 | 2016-03-09 | 福建工程学院 | Equipment and method for detecting error of rotating shaft of five-axis numerical control machine tool |
| CN207164572U (en) * | 2017-08-21 | 2018-03-30 | 天津理工大学 | Digit Control Machine Tool composition error measuring system based on On-machine Test |
Non-Patent Citations (1)
| Title |
|---|
| 吕岩: "基于Quindos系统的三坐标测量机几何精度误差补偿技术", 《金属加工（冷加工）》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113021077A (en) * | 2019-12-09 | 2021-06-25 | 北京精雕科技集团有限公司 | Precision calibration method for on-machine measurement system of numerical control machine tool |
| CN111650881A (en) * | 2020-05-12 | 2020-09-11 | 武汉理工大学 | Method, system and storage medium for predicting and compensating positioning error of numerical control machine |
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