CN115383518A - Method for quickly measuring error of numerical control milling machine turntable - Google Patents
Method for quickly measuring error of numerical control milling machine turntable Download PDFInfo
- Publication number
- CN115383518A CN115383518A CN202210687137.3A CN202210687137A CN115383518A CN 115383518 A CN115383518 A CN 115383518A CN 202210687137 A CN202210687137 A CN 202210687137A CN 115383518 A CN115383518 A CN 115383518A
- Authority
- CN
- China
- Prior art keywords
- rotary table
- target
- motion
- under
- coordinate value
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q17/00—Arrangements for observing, indicating or measuring on machine tools
- B23Q17/24—Arrangements for observing, indicating or measuring on machine tools using optics or electromagnetic waves
- B23Q17/2428—Arrangements for observing, indicating or measuring on machine tools using optics or electromagnetic waves for measuring existing positions of tools or workpieces
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/02—Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]
Landscapes
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Numerical Control (AREA)
Abstract
The method uses laser tracker or multi-camera, fixes the target on the machine turntable, the turntable moves according to the set program, the instrument tracks the coordinate value of the measuring target, the turntable error can be obtained according to the coordinate data and the calculation formula provided by the invention, and the quick and accurate measurement of the machine turntable error is realized.
Description
Technical Field
The invention relates to the field of metal numerical control machining, in particular to a method for measuring the motion error of a rotary table of a numerical control milling machine tool.
Background
The nc milling is a method of performing metal cutting on a workpiece by setting processing parameters such as a rotation speed and a feed and a processing path specified in an nc program.
The machining path refers to a motion track of a tool relative to a workpiece during machining, and the accuracy of the motion track directly influences the shape and position accuracy of milling. The five-axis numerical control machine tool comprises three translational axes XYZ and two revolving shafts AC, AB or BC. One method of achieving C-axis rotation is to add a turntable to the X/Y axis. The motion error of the rotary table has great influence on the precision of the processing path of the numerical control machine tool.
The motion error of the rotary table comprises six terms, and the translation error delta cx 、δ cy 、δ cz Refers to the deviation error of the machine tool in X, Y and Z directions and the corner error epsilon in the moving process of the turntable cx 、ε cy 、ε cz The method refers to torsion errors generated around the X direction, the Y direction and the Z direction of a machine tool in the process of moving the rotary table. Different rotation angles of the rotary table correspond to different error values of each error item.
The current methods for measuring the error of the rotary table comprise the following steps:
1. fixing the dial indicator on a main shaft of the machine tool, driving the dial indicator to move by an XYZ translation shaft of the machine tool, and evaluating the planeness of the rotary table of the machine tool according to the fluctuation range of the dial indicator. The method comprises the steps of arranging a standard calibration rod or a standard ball on a rotary table, installing a measuring probe on a machine tool spindle, operating the probe to measure the calibration rod or the standard ball according to detection specifications set by a manufacturer through a measurement cycle arranged in the machine tool, and evaluating the error of the rotary table according to the result.
The method cannot separate the motion error of the translation axis, cannot measure the actual motion error value of the rotary table, and can only evaluate whether the motion error of the rotary table is too large according to the performance.
2. Two ends of a ball rod instrument are respectively arranged on a machine tool rotary table and a main shaft head, an XYZ translation shaft of the machine tool drives one end to move, the rotary table moves in a matched mode according to a preset program, and all error values of the machine tool rotary table are inversely calculated through the change of the expansion amount measured by the ball rod instrument. The method can not separate the motion error of the translational shaft, has complicated measuring mode and long measuring time, requires the busy time of days for completing the measurement, has low operability and can not measure the axial offset error delta cz And c-axis angle error ε cx 、ε cy 、ε cz And finishing the measurement of the busy time of days.
3. The laser interferometer is arranged on a rotary table, the reflecting mirror is arranged on a main shaft of the machine tool, XYZ translation shafts of the machine tool drive one end to move, the rotary table moves in a matched mode according to a preset program, and error values of the rotary table of the machine tool are inversely calculated through the distance value change measured by the laser interferometer. The method cannot separate the motion error of the translational shaft, is difficult to debug equipment, has high requirement on the internal space of the machine tool, needs one week of machine occupation time for completing measurement, and has poor economical efficiency.
Disclosure of Invention
The invention aims to provide a method for quickly measuring errors of a rotary table of a numerical control milling machine, which can realize quick and accurate measurement of errors of a rotary table of a machine tool.
The numerical control machine tool comprises a rotary table, the rotary table is connected to a translation shaft, the rotary table can move along the translation shaft, and the rotary table can rotate around the axis of the rotary table, and the method is characterized by comprising the following steps of:
1. equipment:
laser tracker, target and target base
2. The operation mode is as follows:
1) Arranging a laser tracker outside a machine tool and close to a rotary table, wherein the position of the laser tracker is required to be free of shielding when facing the view angle of the whole rotary table; 2) Arranging the target and the target base on a first position, far away from the axis of the rotary table, of the machine tool rotary table; 3) On the premise that the numerical control machine tool is at a mechanical zero point, the rotary table is controlled to move along the translational axis, the laser tracker is used for measuring the coordinates of the target, target linear motion coordinate values under a series of laser tracker coordinate systems are obtained, and the laser tracker is used for fitting a space linear of the target motion; 4) The method comprises the following steps of (1) returning a translation shaft of the numerical control machine tool to zero, controlling a rotary table to rotate around the axis of the rotary table for multiple times at an equal angle to complete 360 degrees, measuring a target coordinate at each equal-angle rotation position by using a laser tracker to obtain a series of target rotation motion coordinate values under a laser tracker coordinate system, and fitting a space plane of target motion and a rotation circle center and a rotation radius of the target motion by using the laser tracker; 5) Setting the center of a circle of the target motion as an origin, setting the space linear direction of the target motion as the X direction of a coordinate system, setting the space plane of the target motion as the XY plane of the coordinate system, and establishing a machine tool coordinate system; 6) Converting the target rotary motion coordinate value under the coordinate system of the laser tracker into the machine tool coordinate system to obtain a first target position rotary motion coordinate value A (x) under the machine tool coordinate system a ，y a ，z a ) (ii) a 7) Will be provided withAnd (4) zeroing the machine tool rotary table, arranging the target and the target base on a second position, far away from the axis of the rotary table, of the machine tool rotary table, controlling the rotary table to rotate for multiple times around the axis of the rotary table at the same angle as the step 4) for 360 degrees, measuring the coordinates of the target by using a laser tracker at each equal-angle rotating position, and obtaining a second target position rotary motion coordinate value B (x) under a series of machine tool coordinate systems b ，y b ，z b ) (ii) a 8) The machine tool rotary table is reset to zero again, the target and the target base are arranged on a third position, far away from the axis of the rotary table, on the machine tool rotary table, the rotary table is controlled to rotate for multiple times for 360 degrees around the axis of the rotary table at the same angle as that in the step 4), at each equal-angle rotating position, the target coordinate is measured by using a laser tracker, and a third target position rotary motion coordinate value C (x) under a series of machine tool coordinate systems is obtained c ，y c ， z c ) (ii) a 9) According to the value A (x) of the first target position rotary motion coordinate under the machine tool coordinate system a ，y a ，z a ) And a second target position rotary motion coordinate value B (x) under the machine tool coordinate system b ，y b ，z b ) And a third target position rotary motion coordinate value C (x) under the machine tool coordinate system c ，y c ，z c ) And respectively calculating the rotation error of the rotary table rotating around the axis of the rotary table at equal angles at each time, wherein the rotation error of the rotary table in the x direction, the rotation error of the rotary table in the y direction, the rotation error of the rotary table in the z direction, the translation error of the rotary table along the x direction, the translation error of the rotary table along the y direction and the translation error of the rotary table along the z direction.
3. Data processing:
1) For the rotation error of the turntable in the z direction, the following formula is used for calculation,
in the formula x a0 Is a first target position rotary motion x-direction coordinate value under the angle zero degree of the rotary table, x b0 And the coordinate value of the second target position in the rotation direction x under the angle zero degree of the turntable.
2) For the translation error of the turntable along the x direction, the following formula is used for calculation,
δ cx ＝x a -x a0 -ε cz ·y a0
in the formula x a0 Is the x-direction coordinate value, y, of the rotary motion of the first target position under the angle zero degree of the rotary table a0 And the value is a y-direction coordinate value of the rotary motion of the first target position under the angle of the rotary table at zero degree.
3) For the translation error of the turntable in the y direction, the following formula is used for calculation,
δ cy ＝y a -y a0 -ε cz ·x a0 in the formula x a0 Is the x-direction coordinate value, y, of the rotary motion of the first target position under the angle zero degree of the rotary table a0 And the value is the y-direction coordinate value of the rotary motion of the first target position under the angle of the rotary table of zero degree.
4) For the rotation error of the turntable in the x direction, the following formula is used for calculating,
in the formula x a0 Is a first target position rotary motion x-direction coordinate value under the angle zero degree of the rotary table, x b0 Is a second target position rotary motion x-direction coordinate value under the angle zero degree of the rotary table, x c0 The x-direction coordinate value, y, of the rotary motion of the third target position under the angle zero degree of the rotary table a0 Is a y-direction coordinate value of the rotary motion of the first target position under the angle zero degree of the rotary table b0 Is a y-direction coordinate value of the rotary motion of the second target position under the angle zero degree of the rotary table, y c0 And the coordinate value of the third target position in the rotation direction y under the angle zero degree of the turntable.
5) For the rotation error of the turntable in the y direction, the following formula is used for calculating,
in the formula x a0 Is a first target position rotary motion x-direction coordinate value under the angle zero degree of the rotary table, x b0 Is a second target position rotary motion x-direction coordinate value under the angle zero degree of the rotary table, x c0 The x-direction coordinate value, y, of the rotary motion of the third target position under the angle zero degree of the rotary table a0 Is a y-direction coordinate value of the rotary motion of the first target position under the angle zero degree of the rotary table b0 Is a y-direction coordinate value of the rotary motion of the second target position under the angle zero degree of the rotary table, y c0 And the coordinate value of the third target position in the rotation direction y under the angle zero degree of the turntable.
6) For the translation error of the turntable in the z direction, the following formula is used for calculation,
δ cz ＝z a -z a0 -ε cx ·y a0 -ε cy ·x a0
in the formula x a0 Is the x-direction coordinate value, y, of the rotary motion of the first target position under the angle zero degree of the rotary table a0 Is a y-direction coordinate value, z, of the rotary motion of the first target position under the angle zero degree of the rotary table a0 And the value is a z-direction coordinate value of the first target position rotary motion under the angle of the rotary table at zero degree.
Advantageous effects
The method for rapidly measuring the error of the rotary table of the numerical control milling machine can be widely applied to measuring the error of the rotary table of various types of machine tools. The problems of incomplete measurement type, complicated measurement mode and long equipment debugging time existing in the old method for measuring the error of the rotary table are effectively solved, and the machine occupation time of the error test of the rotary table is shortened to 4 hours from three days.
Drawings
FIG. 1 is a schematic view of the structure and target installation position of a numerically controlled machine tool
FIG. 2 is a schematic view of the arrangement of a machine tool measuring apparatus
FIG. 3 is a schematic view of turntable error
FIG. 4 is a schematic view of the process of error measurement of the rotational stage rotating at equal angles
The numbering in the figures illustrates: generating an offset value delta in the z direction when a machine tool 1, a machine tool X axis 2, a machine tool C axis 3, a target position A4, a target position B5, a target position C6, a machine tool coordinate system 7, a laser tracker coordinate system 8, a laser tracker 9 and a rotary table 10 rotate cy 11 the angle delta of the turntable torsion around the z-axis during rotation εz 12, the offset value delta is generated in the x direction when the turntable rotates cx 13. Turning the turntable about the x-axis by a torsion angle epsilon during rotation cx 14, the offset value delta is generated in the y direction when the turntable rotates εy 15, the offset value delta is generated in the y direction when the turntable rotates εy 。
Detailed Description
Taking a laser tracker to measure a Demagi 160p machine tool as an example, the method for rapidly measuring the error of the numerical control machine turntable provided by the invention comprises the following specific steps:
1) Removing the safety mode of the machine tool, opening a machine tool door, and controlling each axis of the machine tool to return to a zero point;
2) Arranging the laser tracker 9 outside the machine tool 3 at a position required to face the whole rotary table view angle without shielding, as shown in fig. 2;
3) Arranging the target and the target base on a first position, far away from the axis of the rotary table, of the machine tool rotary table;
4) On the premise that the numerical control machine tool is at a mechanical zero point, the rotary table is controlled to move along the translational axis, the laser tracker is used for measuring the coordinates of the target, target linear motion coordinate values under a series of laser tracker coordinate systems are obtained, and the laser tracker is used for fitting a space linear of the target motion;
5) The method comprises the following steps of (1) returning a translation shaft of the numerical control machine tool to zero, controlling a rotary table to rotate around the axis of the rotary table at an equal angle for a circle, as shown in fig. 4, rotating each equal angle by 15 degrees for multiple times to complete 360 degrees, measuring a target coordinate by using a laser tracker at the 15-degree rotation position each time to obtain a target rotation motion coordinate value under a series of laser tracker coordinate systems, and fitting a space plane of target motion, the rotation center of the target motion and the rotation radius by using the laser tracker;
6) Setting the center of a circle of the target motion as an origin, setting the space linear direction of the target motion as the X direction of a coordinate system, setting the space plane of the target motion as the XY plane of the coordinate system, and establishing a machine tool coordinate system;
7) Converting the target rotary motion coordinate value under the coordinate system of the laser tracker into the machine tool coordinate system to obtain a first target rotary motion coordinate value A (x) under the machine tool coordinate system a ，y a ，z a )；
8) Returning the machine tool rotary table to zero, and arranging the target and the target seat on the machine tool rotary tableOn the second position far away from the axle center of the rotary table, the rotary table is controlled to rotate for multiple times at an equal angle of 15 degrees around the axle center to finish 360 degrees, and at each equal angle rotation position, the laser tracker is used for measuring the target coordinates to obtain a second target position rotation motion coordinate value B (x) under a series of machine tool coordinate systems b ，y b ，z b )；
9) The method comprises the steps of resetting the machine tool rotary table to zero again, arranging the target and the target base on a third position, far away from the axis of the rotary table, of the machine tool rotary table, controlling the rotary table to rotate for multiple times at an angle of 15 degrees around the axis of the rotary table to complete 360 degrees, measuring the coordinates of the target at each equal-angle rotating position by using a laser tracker, and obtaining a third target position rotary motion coordinate value C (x) under a series of machine tool coordinate systems c ，y c ，z c )；
10 A first target position rotation coordinate value A (x) based on the machine coordinate system a ，y a ，z a ) And a second target position rotation motion coordinate value B (x) under the machine tool coordinate system b ，y b ，z b ) And a third target position rotation motion coordinate value C (x) under the machine tool coordinate system c ，y c ，z c ) And respectively calculating the rotation error of the rotary table rotating around the axis of the rotary table at every 15 degrees, including the rotation error of the rotary table in the x direction, the rotation error of the rotary table in the y direction, the rotation error of the rotary table in the z direction, the translation error of the rotary table along the x direction, the translation error of the rotary table along the y direction and the translation error of the rotary table along the z direction.
11 Data processing:
a) For the rotation error of the turntable in the z direction, the following formula is used for calculation,
in the formula x a0 Is a first target position rotary motion x-direction coordinate value under the angle zero degree of the rotary table, x b0 And the x-direction coordinate value of the rotary motion of the second target position under the angle of zero degree of the rotary table.
b) For the translation error of the rotary table along the x direction, the following formula is used for calculation,
δ cx ＝x a -x a0 -ε cz ·y a0
in the formula x a0 Is the x-direction coordinate value, y, of the rotary motion of the first target position under the angle zero degree of the rotary table a0 And the value is the y-direction coordinate value of the rotary motion of the first target position under the angle of the rotary table of zero degree.
c) For the translation error of the turntable in the y direction, it is calculated as follows,
δ cy ＝y a -y a0 -ε cz ·x a0
in the formula x a0 Is the x-direction coordinate value, y, of the rotary motion of the first target position under the angle zero degree of the rotary table a0 And the value is the y-direction coordinate value of the rotary motion of the first target position under the angle of the rotary table of zero degree.
d) For the rotation error of the turntable in the x direction, the following formula is used for calculating,
in the formula x a0 Is a first target position rotary motion x-direction coordinate value under the angle zero degree of the rotary table, x b0 Is a second target position rotary motion x-direction coordinate value under the angle zero degree of the rotary table, x c0 The x-direction coordinate value, y, of the rotary motion of the third target position under the angle zero degree of the rotary table a0 Is a y-direction coordinate value of the rotary motion of the first target position under the angle zero degree of the rotary table, y b0 Is a y-direction coordinate value of the rotary motion of the second target position under the angle zero degree of the rotary table c0 And the value is a y-direction coordinate value of the rotary motion of the third target position under the angle of zero degree of the rotary table.
e) For the rotation error of the turntable in the y direction, the following formula is used for calculating,
in the formula x a0 Is a first target position rotary motion x-direction coordinate value under the angle zero degree of the rotary table, x b0 Is a second target position rotary motion x-direction coordinate under the angle zero degree of the rotary tableValue, x c0 The x-direction coordinate value, y, of the rotary motion of the third target position under the angle zero degree of the rotary table a0 Is a y-direction coordinate value of the rotary motion of the first target position under the angle zero degree of the rotary table, y b0 Is a y-direction coordinate value of the rotary motion of the second target position under the angle zero degree of the rotary table c0 And the value is a y-direction coordinate value of the rotary motion of the third target position under the angle of zero degree of the rotary table.
f) For the translation error of the turntable along the z direction, the following formula is used for calculation,
δ cz ＝z a -z a0 -ε cx ·y a0 -ε cy ·x a0
in the formula x a0 Is the x-direction coordinate value, y, of the rotary motion of the first target position under the angle zero degree of the rotary table a0 Is a y-direction coordinate value, z, of the rotary motion of the first target position under the angle zero degree of the rotary table a0 And the value is a z-direction coordinate value of the rotary motion of the first target position under the angle of the rotary table at zero degree.
Claims (7)
1. The numerical control machine tool comprises a rotary table, the rotary table is connected to a translation shaft, the rotary table can move along the translation shaft, and the rotary table can rotate around the axis of the rotary table, and the method is characterized by comprising the following contents that 1) a laser tracker is arranged outside a machine tool and close to the rotary table, and the position of the laser tracker is required to be free of shielding to the view angle of the whole rotary table; 2) Arranging the target and the target base on a first position, far away from the axis of the rotary table, of the rotary table of the machine tool; 3) On the premise that the numerical control machine tool is at a mechanical zero point, the rotary table is controlled to move along the translation axis, the target coordinates are measured by using the laser tracker, target linear motion coordinate values under a series of laser tracker coordinate systems are obtained, and the laser tracker is used for fitting a space linear of target motion; 4) The method comprises the following steps of (1) returning a translation shaft of the numerical control machine tool to zero, controlling a rotary table to rotate around the axis of the rotary table for multiple times at an equal angle to complete 360 degrees, measuring a target coordinate at each equal-angle rotation position by using a laser tracker to obtain a series of target rotation motion coordinate values under a laser tracker coordinate system, and fitting a space plane of target motion and a rotation circle center and a rotation radius of the target motion by using the laser tracker; 5) Setting the center of a circle of the target motion as the origin, moving the targetSetting the space linear direction as a coordinate system X direction, setting a space plane of the target motion as a coordinate system XY plane, and establishing a machine tool coordinate system; 6) Converting the target rotary motion coordinate value under the coordinate system of the laser tracker into the machine tool coordinate system to obtain a first target rotary motion coordinate value A (x) under the machine tool coordinate system a ，y a ，z a ) (ii) a 7) Zeroing the machine tool rotary table, arranging the target and the target base on a second position, far away from the axis of the rotary table, of the machine tool rotary table, controlling the rotary table to rotate for multiple times for 360 degrees around the axis of the rotary table at the same angle as the step 4), measuring the target coordinate by using a laser tracker at each equal-angle rotating position, and obtaining a second target position rotary motion coordinate value B (x) under a series of machine tool coordinate systems b ，y b ，z b ) (ii) a 8) The machine tool rotary table is reset to zero again, the target and the target base are arranged on a third position, far away from the axis of the rotary table, on the machine tool rotary table, the rotary table is controlled to rotate for multiple times for 360 degrees around the axis of the rotary table at the same angle as that in the step 4), at each equal-angle rotating position, the target coordinate is measured by using a laser tracker, and a third target position rotary motion coordinate value C (x) under a series of machine tool coordinate systems is obtained c ，y c ，z c ) (ii) a 9) According to the value A (x) of the first target position rotary motion coordinate under the machine tool coordinate system a ，y a ，z a ) And a second target position rotation motion coordinate value B (x) under the machine tool coordinate system b ，y b ，z b ) And a third target position rotation motion coordinate value C (x) under the machine tool coordinate system c ，y c ，z c ) And respectively calculating the rotation error of the rotary table rotating around the axis of the rotary table at equal angles at each time, wherein the rotation error of the rotary table in the x direction, the rotation error of the rotary table in the y direction, the rotation error of the rotary table in the z direction, the translation error of the rotary table along the x direction, the translation error of the rotary table along the y direction and the translation error of the rotary table along the z direction.
2. A method for rapidly measuring errors of a numerical control machine turntable according to claim 1, wherein the rotation error of the turntable in the z direction is calculated by the following formula,
in the formula x a0 Is a first target position rotary motion x-direction coordinate value under the angle zero degree of the rotary table, x b0 And the coordinate value of the second target position in the rotation direction x under the angle zero degree of the turntable.
3. The numerical control machine turntable error rapid measurement method according to claim 1, wherein for the translation error of the turntable along the x direction, the following formula is calculated,
δ cx ＝x a -x a0 -δ cz ·y a0
in the formula x a0 Is the x-direction coordinate value, y, of the rotary motion of the first target position under the angle zero degree of the rotary table a0 And the value is the y-direction coordinate value of the rotary motion of the first target position under the angle of the rotary table of zero degree.
4. The method for rapidly measuring the error of the numerical control machine turntable according to claim 1, wherein the translation error of the turntable along the y direction is calculated by the following formula,
δ cy ＝y a -y a0 -δ cz ·x a0
in the formula x a0 Is the x-direction coordinate value, y, of the rotary motion of the first target position under the angle zero degree of the rotary table a0 And the value is the y-direction coordinate value of the rotary motion of the first target position under the angle of the rotary table of zero degree.
5. The method for rapidly measuring the error of the numerical control machine turntable according to claim 1, wherein the rotation error of the turntable in the x direction is calculated by the following formula,
in the formula x a0 Is a first target position rotary motion x-direction coordinate value under the angle zero degree of the rotary table, x b0 To turn toThe second target position rotates under the zero degree of the table angle and moves the coordinate value in the x direction, x c0 The x-direction coordinate value, y, of the rotary motion of the third target position under the angle zero degree of the rotary table a0 Is a y-direction coordinate value of the rotary motion of the first target position under the angle zero degree of the rotary table, y b0 Is a y-direction coordinate value of the rotary motion of the second target position under the angle zero degree of the rotary table c0 And the coordinate value of the third target position in the rotation direction y under the angle zero degree of the turntable.
6. A method for rapidly measuring errors of a numerical control machine turntable according to claim 1, wherein the rotation error of the turntable in the y direction is calculated by the following formula,
in the formula x a0 Is a first target position rotary motion x-direction coordinate value under the angle zero degree of the rotary table, x b0 Is a second target position rotary motion x-direction coordinate value under the angle zero degree of the rotary table, x c0 The x-direction coordinate value, y, of the rotary motion of the third target position under the angle zero degree of the rotary table a0 Is a y-direction coordinate value of the rotary motion of the first target position under the angle zero degree of the rotary table b0 Is a y-direction coordinate value of the rotary motion of the second target position under the angle zero degree of the rotary table c0 And the coordinate value of the third target position in the rotation direction y under the angle zero degree of the turntable.
7. The numerical control machine turntable error rapid measurement method according to claim 1, wherein for the translation error of the turntable along the z direction, the following formula is calculated,
δ cz ＝z a -z a0 -δ ax ·y a0 -δ cy ·x a0
in the formula x a0 Is the x-direction coordinate value, y, of the rotary motion of the first target position under the angle zero degree of the rotary table a0 Is a y-direction coordinate value, z, of the rotary motion of the first target position under the angle zero degree of the rotary table a0 And the value is a z-direction coordinate value of the rotary motion of the first target position under the angle of the rotary table at zero degree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210687137.3A CN115383518B (en) | 2022-06-17 | 2022-06-17 | Quick measuring method for turntable error of numerically controlled milling machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210687137.3A CN115383518B (en) | 2022-06-17 | 2022-06-17 | Quick measuring method for turntable error of numerically controlled milling machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115383518A true CN115383518A (en) | 2022-11-25 |
| CN115383518B CN115383518B (en) | 2023-07-21 |
Family
ID=84116340
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210687137.3A Active CN115383518B (en) | 2022-06-17 | 2022-06-17 | Quick measuring method for turntable error of numerically controlled milling machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115383518B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009012083A (en) * | 2007-06-29 | 2009-01-22 | Yoshiaki Kakino | Motion error measuring method and device of machine tool |
| CN103389038A (en) * | 2013-07-16 | 2013-11-13 | 西安交通大学 | Targeting multi-station measuring method for detecting geometric accuracy of numerical control machine tool through laser tracker |
| CN103447884A (en) * | 2013-08-02 | 2013-12-18 | 西安交通大学 | Numerical control machine tool translational shaft geometric error measuring device and measuring and identifying method |
| CN103737426A (en) * | 2013-12-24 | 2014-04-23 | 西安交通大学 | Numerical control machine tool rotating shaft geometric error three-wire measurement method |
| CN113770814A (en) * | 2021-08-26 | 2021-12-10 | 西南交通大学 | Method for identifying geometric error of translational axis of numerical control machine tool based on vector direction measurement |
-
2022
- 2022-06-17 CN CN202210687137.3A patent/CN115383518B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009012083A (en) * | 2007-06-29 | 2009-01-22 | Yoshiaki Kakino | Motion error measuring method and device of machine tool |
| CN103389038A (en) * | 2013-07-16 | 2013-11-13 | 西安交通大学 | Targeting multi-station measuring method for detecting geometric accuracy of numerical control machine tool through laser tracker |
| CN103447884A (en) * | 2013-08-02 | 2013-12-18 | 西安交通大学 | Numerical control machine tool translational shaft geometric error measuring device and measuring and identifying method |
| CN103737426A (en) * | 2013-12-24 | 2014-04-23 | 西安交通大学 | Numerical control machine tool rotating shaft geometric error three-wire measurement method |
| CN113770814A (en) * | 2021-08-26 | 2021-12-10 | 西南交通大学 | Method for identifying geometric error of translational axis of numerical control machine tool based on vector direction measurement |
Also Published As
| Publication number | Publication date |
|---|---|
| CN115383518B (en) | 2023-07-21 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Weikert | R-test, a new device for accuracy measurements on five axis machine tools | |
| CN102001021B (en) | Method for measuring geometric error parameter value of rotary oscillation axis of five-axis linkage numerical control machine tool | |
| JP5448634B2 (en) | Machine error identification method and program | |
| US20160116275A1 (en) | Geometric-error identification system and geometric-error identification method | |
| JP2013503380A (en) | Calibration method for machine tools | |
| CN108469782A (en) | A kind of installation error discrimination method based on rotary shaft composition error measured value | |
| Huang et al. | Identification of geometric errors of rotary axes on 5-axis machine tools by on-machine measurement | |
| JP2018142064A (en) | Error identification method for machine tool | |
| CN111487923A (en) | Swing position error detection and identification method for CA double-swing five-axis numerical control machine tool | |
| CN111673292A (en) | RTCP error calibration compensation method for five-axis laser processing equipment | |
| CN209842399U (en) | Calibrating device for geometric error of machine tool and corner positioning error of rotary table | |
| Huang et al. | Identification of integrated geometric errors of rotary axis and setup position errors for 5-axis machine tools based on machining test | |
| TW201412454A (en) | A method for the measurement of static and dynamic errors of rotary axes in five-axis CNC machine tools | |
| Józwik | Dynamic measurement of spindle errors of CNC machine tools by capacitive sensors during aircraft parts machining | |
| Zhang et al. | Reverse identification of dynamic and static motion errors for five-axis machine based on specimen feature decomposition | |
| Fang et al. | Simultaneous calibration of probe parameters and location errors of rotary axes on multi-axis CNC machines by using a sphere | |
| JPH05111851A (en) | Gear measuring method and gear grinder commonly used for gear measurement | |
| CN110977613B (en) | Five-axis numerical control machine tool geometric error identification method based on test piece self-calibration | |
| Ni et al. | Geometric Error Measurement and Identification for Rotational Axes of a Five-Axis CNC Machine Tool. | |
| Muelaner et al. | Rapid machine tool verification | |
| CN115415846B (en) | Efficient and precise machining method for normal round holes of special-shaped products based on three-axis machine tool | |
| Wang et al. | Kinematic error separation on five-axis NC machine tool based on telescoping double ball bar | |
| TW201412452A (en) | A method for the measurement of static and dynamic errors of rotary axes in five-axis CNC machine tool | |
| Li et al. | A high-speed in situ measuring method for inner dimension inspection | |
| CN115383518B (en) | Quick measuring method for turntable error of numerically controlled milling machine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |