CN113358066B - Device and method for detecting angle error of wedge-shaped long belt - Google Patents
Device and method for detecting angle error of wedge-shaped long belt Download PDFInfo
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- CN113358066B CN113358066B CN202110780000.8A CN202110780000A CN113358066B CN 113358066 B CN113358066 B CN 113358066B CN 202110780000 A CN202110780000 A CN 202110780000A CN 113358066 B CN113358066 B CN 113358066B
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- 238000000034 method Methods 0.000 title claims abstract description 28
- 238000001514 detection method Methods 0.000 claims abstract description 106
- 238000001228 spectrum Methods 0.000 claims abstract description 68
- 238000005259 measurement Methods 0.000 claims description 47
- 230000003595 spectral effect Effects 0.000 claims description 31
- 238000013461 design Methods 0.000 claims description 17
- 238000006073 displacement reaction Methods 0.000 claims description 14
- 238000010586 diagram Methods 0.000 description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000011156 evaluation Methods 0.000 description 2
- 230000032683 aging Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000035882 stress Effects 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/26—Measuring arrangements characterised by the use of optical techniques for measuring angles or tapers; for testing the alignment of axes
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Abstract
The invention provides an angle error detection device and method for a wedge-shaped long belt, wherein the angle error detection device for the wedge-shaped long belt comprises a workbench; the mounting rack is arranged on the workbench; the first spectrum confocal sensor and the second spectrum confocal sensor are arranged on the mounting frame, and the detection direction faces the workbench; a gap is reserved between the first spectrum confocal sensor and the second spectrum confocal sensor; the moving assembly is arranged on the workbench; the clamp is arranged on the moving assembly and is used for fixing the wedge-shaped long belt, and the moving assembly is used for driving the clamp to move so that the fixed wedge-shaped long belt on the clamp passes through the detection areas of the first spectrum confocal sensor and the second spectrum confocal sensor; the first end block is used for being arranged at one end of the wedge-shaped long belt, and the second end block is used for being arranged at the other end of the wedge-shaped long belt. The angle error detection device for the wedge-shaped long belt can improve the detection precision of angle errors of the wedge-shaped long belt.
Description
Technical Field
The invention belongs to the field of product geometric error detection and evaluation, and particularly relates to an angle error detection device and an angle error detection method for a wedge-shaped long belt.
Background
The wedge-shaped long belt is a part involved in a mechanical connection structure, and the angle error of the wedge-shaped long belt is an important index for influencing the performance of the connection structure, and the wedge-shaped long belt needs to be accurately acquired before assembly.
The wedge-shaped long belt is a flexible part, and the ratio of the maximum width to the length of the wedge-shaped long belt is usually more than 20 times, so that the wedge-shaped long belt inevitably has small aging deformation and stress deformation after the wedge-shaped long belt is processed, and the deformation can influence the evaluation of errors; in addition, the wedge-shaped long belt is closer to the tail part, so that the lower the height of the wedge-shaped long belt is, the greater difficulty is brought to clamping; these deformations thus present great difficulties for measuring the angular errors of the wedge-shaped long strip. The existing measuring method adopts a three-coordinate measuring machine for measurement, and the wedge-shaped strip needs to be placed on a platform and is tightly pressed by an iron block.
The information disclosed in the background section of the invention is only for enhancement of understanding of the general background of the invention and should not be taken as an acknowledgement or any form of suggestion that this information forms the prior art already known to a person skilled in the art.
Disclosure of Invention
The invention aims to provide an angle error detection device and method for a wedge-shaped long belt, and the angle error detection device for the wedge-shaped long belt can improve the accuracy of angle error detection of the wedge-shaped long belt.
In order to achieve the above object, a first aspect of the present invention provides an angle error detection device for a wedge-shaped long belt, the angle error detection device for a wedge-shaped long belt comprising:
A work table;
The mounting frame is arranged on the workbench;
the first spectral confocal sensor is arranged on the mounting frame, and the detection direction faces the workbench;
the second spectrum confocal sensor is arranged on the mounting frame, the detection direction faces the workbench, and a gap is reserved between the first spectrum confocal sensor and the second spectrum confocal sensor;
the moving assembly is arranged on the workbench;
The clamp is arranged on the moving assembly and used for fixing the wedge-shaped long belt, and the moving assembly is used for driving the clamp to move so that the fixed wedge-shaped long belt on the clamp passes through the detection areas of the first spectrum confocal sensor and the second spectrum confocal sensor;
The first end block is used for being arranged at one end of the wedge-shaped long belt, and the second end block is used for being arranged at the other end of the wedge-shaped long belt.
In any of the foregoing solutions, preferably, the mounting frame includes:
the first mounting frame is arranged on one side of the workbench;
the second mounting bracket is connected to the first mounting bracket and is arranged on one side of the first mounting bracket, and the first spectrum confocal sensor and the second spectrum confocal sensor are arranged on the second mounting bracket.
In any of the foregoing solutions, preferably, the mounting rack further includes:
A first sensor clamp connected to the second mounting bracket, the first spectral confocal sensor being connected to the first sensor clamp;
And the second sensor clamp is connected with the second mounting frame, and the second spectral confocal sensor is connected with the second sensor clamp.
In any of the foregoing solutions, preferably, the moving assembly includes:
a linear movement shaft provided on the table;
The support slide block is arranged on the linear motion shaft, and the clamp is arranged on the support slide block.
In any of the above embodiments, preferably, the method further includes:
the limiting columns are arranged on the workbench at intervals, and the limiting columns are positioned on the same straight line;
And the magnetic positioning piece is arranged on the wedge-shaped long belt and can generate magnetic attractive force with the clamp.
According to a second aspect of the present invention, there is provided a method for detecting angle error of a wedge-shaped long belt, applied to the apparatus for detecting angle error of a wedge-shaped long belt according to any one of the above-mentioned aspects, the method comprising:
step 101: the wedge-shaped long belt is arranged on the clamp, the first end block is used for being arranged at one end of the wedge-shaped long belt, and the second end block is used for being arranged at the other end of the wedge-shaped long belt;
Step 102: the moving assembly drives the wedge-shaped long belt to pass through the detection area, and the detection device is calibrated based on the detection result of the first spectrum confocal sensor, the detection result of the second spectrum confocal sensor, the length value of the first end block and the length value of the second end block;
Step 103: driving the wedge-shaped long belt to pass through the detection area for multiple times through a moving assembly, and acquiring a data set of displacement distance and height measurement values of the wedge-shaped long belt based on detection results of the first spectrum confocal sensor and the second spectrum confocal sensor;
step 104: based on the data set, calculating an angle measurement value of the wedge-shaped long belt;
Step 105: and determining an angle error of the wedge-shaped long belt based on the angle measurement value and the angle design value of the wedge-shaped long belt.
In any of the foregoing technical solutions, preferably, the step of driving the wedge-shaped long belt through the detection area multiple times by the moving assembly, and acquiring the data set of the displacement distance and the height measurement value of the wedge-shaped long belt based on the detection results of the first spectrum confocal sensor and the second spectrum confocal sensor includes:
setting a first detection period;
the wedge-shaped long belt is driven to pass through the detection area for multiple times through the moving assembly;
acquiring a detection result of the first spectrum confocal sensor, a detection result of the second spectrum confocal sensor and a moving distance of the moving component after each detection period;
Calculating and acquiring the height of the wedge-shaped long belt based on the detection result of the first spectrum confocal sensor and the detection result of the second spectrum confocal sensor;
And acquiring a data set of displacement distance and height measurement value of the wedge-shaped long belt based on the height of the wedge-shaped long belt and the moving distance of the moving assembly.
In any of the foregoing solutions, preferably, the step of obtaining the angle measurement value of the wedge-shaped long belt based on the data set includes:
Fitting the data set, and solving the slope of a fitting straight line;
and based on the slope, obtaining an angle measurement value of the wedge-shaped long belt.
In any of the foregoing solutions, preferably, the step of determining the angle error of the wedge-shaped long belt based on the angle measurement value and the angle design value of the wedge-shaped long belt includes:
repeating steps 103-104 to obtain angle measurement values of a plurality of wedge-shaped long belts
And determining the angle error of the wedge-shaped long belt based on the angle measured values of the plurality of wedge-shaped long belts and the angle design value of the wedge-shaped long belt.
In any of the foregoing solutions, preferably, the step of determining the angle error of the wedge-shaped long belt based on the angle measurement values of the plurality of wedge-shaped long belts and the angle design value of the wedge-shaped long belt includes:
Obtaining the maximum value of angle measurement values of a plurality of wedge-shaped long belts;
And taking the difference value between the maximum value and the angle design value as the angle error of the wedge-shaped long belt.
The invention has the beneficial effects that: according to the angle error detection device for the wedge-shaped long belt, in the using process, the wedge-shaped long belt is arranged on the clamp, the wedge-shaped long belt is fixed through the clamp, then the first end block is arranged at one end of the wedge-shaped long belt, and the second end block is arranged at the other end of the wedge-shaped long belt. The method comprises the steps that the connecting line direction between a first spectral confocal sensor and a second spectral confocal sensor is defined as an X-axis direction, a moving assembly is used for driving a wedge-shaped long belt to move along a Y-axis direction perpendicular to the X-axis, a detection device can be calibrated based on the detection results of the first spectral confocal sensor and the second spectral confocal sensor and the length of the first end block and the length of the second end block, after the detection device is calibrated, the moving assembly is used for driving the wedge-shaped long belt to move along the Y-axis direction for multiple times, a data set of the displacement distance and the height measured value of the wedge-shaped long belt can be obtained based on the detection results of the first spectral confocal sensor and the second spectral confocal sensor, the slope of a fitting straight line can be obtained after the data set is fitted, the angle measured value of the wedge-shaped long belt can be timely obtained based on the slope, the angle error of the wedge-shaped long belt can be obtained based on the angle measured value of the wedge-shaped long belt, and the detection accuracy of the angle error of the wedge-shaped long belt can be improved based on the angle error.
Additional features and advantages of the invention will be set forth in the detailed description which follows.
Drawings
The foregoing and other objects, features and advantages of the invention will be apparent from the following more particular descriptions of exemplary embodiments of the invention as illustrated in the accompanying drawings wherein like reference numbers generally represent like parts throughout the exemplary embodiments of the invention.
Fig. 1 shows a schematic block diagram of an angle error detection apparatus of a wedge-shaped long tape according to an embodiment of the present invention.
Fig. 2 shows a schematic step flow diagram of a method for angle error detection of a wedge-shaped long belt according to an embodiment of the invention.
Reference numerals illustrate:
1. A work table; 2. a mounting frame; 3. a first spectral confocal sensor; 4. a second spectral confocal sensor; 5. a moving assembly; 6. a clamp; 7. a wedge-shaped long belt; 8. a first mounting frame; 9. a second mounting frame; 10. a first sensor clamp; 11. a second sensor clamp; 12. a linear motion axis; 13. a support slider; 14. a limit column; 15. a magnetic positioning member; 16. a first end block; 17. and a second end block.
Detailed Description
Preferred embodiments of the present invention will be described in more detail below. While the preferred embodiments of the present invention are described below, it should be understood that the present invention may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.
Fig. 1 shows a schematic block diagram of an angle error detection apparatus of a wedge-shaped long tape according to an embodiment of the present invention. Fig. 2 shows a schematic step flow diagram of a method for angle error detection of a wedge-shaped long belt according to an embodiment of the invention.
As shown in fig. 1, the present invention provides an angle error detection apparatus of a wedge-shaped long tape, the angle error detection apparatus of the wedge-shaped long tape comprising: a work table 1; the mounting frame 2 is arranged on the workbench 1; the first spectral confocal sensor 3 is arranged on the mounting frame 2, and the detection direction faces the workbench 1; the second spectrum confocal sensor 4 is arranged on the mounting frame 2, the detection direction faces the workbench 1, and a gap is reserved between the first spectrum confocal sensor 3 and the second spectrum confocal sensor 4; a moving assembly 5 provided on the table 1; the clamp 6 is arranged on the moving assembly 5, the clamp 6 is used for fixing the wedge-shaped long belt 7, and the moving assembly 5 is used for driving the clamp 6 to move so that the fixed wedge-shaped long belt 7 on the clamp 6 passes through the detection areas of the first spectrum confocal sensor 3 and the second spectrum confocal sensor 4; a first end block 16 and a second end block 17, the first end block 16 is used for being arranged at one end of the wedge-shaped long belt 7, and the second end block 17 is used for being arranged at the other end of the wedge-shaped long belt 7.
According to the angle error detection device for the wedge-shaped long belt 7, in the using process, the wedge-shaped long belt 7 is arranged on the clamp 6, the wedge-shaped long belt 7 is fixed through the clamp 6, then the first end block 16 is arranged at one end of the wedge-shaped long belt 7, and the second end block 17 is arranged at the other end of the wedge-shaped long belt 7. The method comprises the steps that the connecting line direction between a first spectrum confocal sensor 3 and a second spectrum confocal sensor 4 is defined as an X-axis direction, a moving component 5 drives a wedge-shaped long belt 7 to move along a Y-axis direction perpendicular to the X-axis, a detection device can be calibrated based on the detection results of the first spectrum confocal sensor 3 and the second spectrum confocal sensor 4 and the length of a first end block 16 and a second end block 17, after the detection device is calibrated, the moving component 5 can drive the wedge-shaped long belt 7 to move along the Y-axis direction for multiple times, a data set of displacement distance and height measurement values of the wedge-shaped long belt 7 can be obtained based on the detection results of the first spectrum confocal sensor 3 and the second spectrum confocal sensor 4, the slope of a fitting straight line can be obtained after the data set is fitted, further based on the slope, the angle measurement value of the wedge-shaped long belt 7 can be obtained in time, and the angle error of the wedge-shaped long belt 7 can be obtained based on the angle measurement value of the wedge-shaped long belt 7, and the detection accuracy of the angle error of the wedge-shaped long belt 7 can be improved.
It will be appreciated that when the wedge-shaped long belt 7 is driven through the detection zone by the moving assembly 5, the detection result of the first spectral confocal sensor 3 may be denoted as x1, the detection result of the first spectral confocal sensor 3 may be denoted as x2, the length of the first end block 16 may be denoted as h 01, and the length of the second end block 17 may be denoted as h 02.
L 0＝x1+x2+h01 or L 0＝x1+x2+h02
At this time, the calibration of the measuring device can be completed by the above formula (1).
It can be understood that when the wedge-shaped long belt 7 is driven to pass through the detection zone by the moving assembly 5 for a plurality of times, the measured value x 1i of the first spectrum confocal sensor 3 and the measured value x 2i of the second spectrum confocal sensor 4 are recorded once every interval time t, and the displacement s i at the moment is recorded, and n times are recorded in total; the height of the wedge-shaped long belt 7 measured at the ith time is as follows:
hi＝L0-x1i-x2i,i＝1,2,…,n
the measured s= { S i |i=1, 2, …, n } and h= { h i |i=1, 2, …, n } can form a point set p= { (S i,hi) |i=1, 2, …, n } in a coordinate system formed by an X axis and a Y axis, the point set P is fitted with a straight line by a least square method, and the slope k of the fitted straight line is recorded;
The wedge-shaped long belt 7 is driven to move through the moving assembly 5 for a plurality of times, the repeated measurement times are m, and the slope k j (j=1, 2, …, m) of each measurement is obtained;
the angle obtained by each measurement is calculated by the formula "θ j＝|arctan(kj) |, j=1, 2, …, m", and the average value of the measurements is calculated
Recording the value as the actual angle measurement result of the wedge-shaped long belt 7, and setting the angle design value of the wedge-shaped long belt 7 as theta 0, the measurement result of the angle error of the wedge-shaped long belt 7 is
Δθ＝max(θj-θ0),j＝1,2,…,m。
As a preferred embodiment, the mounting frame 2 includes: a first mounting frame 8 provided on one side of the table 1; the second mounting frame 9 is connected to the first mounting frame 8, is arranged on one side of the first mounting frame 8, and the first spectrum confocal sensor 3 and the second spectrum confocal sensor 4 are arranged on the second mounting frame 9.
In this technical solution, the mounting frame 2 comprises: a first mounting frame 8 and a second mounting frame 9, which facilitate adjustment of the mounting positions of the first spectral confocal sensor 3 and the second spectral confocal sensor 4, and in some examples the second mounting frame 9 may be slidably connected to the first mounting frame 8, so as to facilitate adjustment of the actual heights of the first spectral confocal sensor 3 and the second spectral confocal sensor 4.
As a preferred solution, the mounting frame 2 further comprises: a first sensor holder 10 connected to the second mounting frame 9, the first spectral confocal sensor 3 being connected to the first sensor holder 10; a second sensor holder 11 is connected to the second mounting frame 9, and the second spectral confocal sensor 4 is connected to the second sensor holder 11.
In this technical solution, the mounting frame 2 further comprises: the first sensor holder 10 and the second sensor holder 11 are arranged so as to facilitate a stable fixation of the first spectral confocal sensor 3 and the second spectral confocal sensor 4.
As a preferred solution, the mobile assembly 5 comprises: a linear motion shaft 12 provided on the table 1; a support slider 13 provided on the linear motion shaft 12, and the jig 6 is provided on the support slider 13.
Through the setting of rectilinear motion axle 12 and support slider 13, rectilinear motion axle 12 possesses the ability that the high accuracy removed, the certain of the wedge long ribbon 7 of accurate control of being convenient for, the setting through support slider 13 is convenient for to the fixed of anchor clamps 6, the firm support to wedge long ribbon 7 of being convenient for.
As a preferred technical scheme, the method further comprises: a plurality of limit posts 14 arranged on the workbench 1 at intervals, wherein the limit posts 14 are positioned on the same straight line; the magnetic positioning piece 15 is used for being arranged on the wedge-shaped long belt 7, and the magnetic positioning piece 15 can generate magnetic attraction force with the clamp 6.
In the installation process of the wedge-shaped long belt 7, the wedge-shaped long belt 7 can be arranged on the clamp 6, then one end of the wedge-shaped long belt 7 is abutted against the plurality of limiting posts 14, and then the positioning of the wedge-shaped long belt 7 can be completed, and the wedge-shaped long belt 7 is fixed through the magnetic positioning piece 15, so that the wedge-shaped long belt 7 can be prevented from displacing relative to the clamp 6 in the moving process.
As shown in fig. 2, according to a second aspect of the present invention, there is provided a method for detecting an angle error of a wedge-shaped long belt, which is applied to the apparatus for detecting an angle error of a wedge-shaped long belt according to any one of the above-mentioned embodiments, the method comprising:
Step 101: setting the wedge-shaped long belt on a clamp, setting a first end block at one end of the wedge-shaped long belt, and setting a second end block at the other end of the wedge-shaped long belt;
step 102: the wedge-shaped long belt is driven by the moving assembly to pass through a detection area, and the detection device is calibrated based on the detection result of the first spectrum confocal sensor, the detection result of the second spectrum confocal sensor, the length value of the first end block and the length value of the second end block;
Step 103: driving the wedge-shaped long belt to pass through a detection area for multiple times through the moving assembly, and acquiring a data set of displacement distance and height measurement values of the wedge-shaped long belt based on detection results of the first spectrum confocal sensor and the second spectrum confocal sensor;
Step 104: based on the data set, calculating an angle measurement value of the wedge-shaped long belt;
Step 105: and determining the angle error of the wedge-shaped long belt based on the angle measurement value and the angle design value of the wedge-shaped long belt.
According to the angle error detection device for the wedge-shaped long belt, in the using process, the wedge-shaped long belt is arranged on the clamp, the wedge-shaped long belt is fixed through the clamp, then the first end block is arranged at one end of the wedge-shaped long belt, and the second end block is arranged at the other end of the wedge-shaped long belt. The method comprises the steps that the connecting line direction between a first spectral confocal sensor and a second spectral confocal sensor is defined as an X-axis direction, a moving assembly is used for driving a wedge-shaped long belt to move along a Y-axis direction perpendicular to the X-axis, a detection device can be calibrated based on the detection results of the first spectral confocal sensor and the second spectral confocal sensor and the length of the first end block and the length of the second end block, after the detection device is calibrated, the moving assembly is used for driving the wedge-shaped long belt to move along the Y-axis direction for multiple times, a data set of the displacement distance and the height measured value of the wedge-shaped long belt can be obtained based on the detection results of the first spectral confocal sensor and the second spectral confocal sensor, the slope of a fitting straight line can be obtained after the data set is fitted, the angle measured value of the wedge-shaped long belt can be timely obtained based on the slope, the angle error of the wedge-shaped long belt can be obtained based on the angle measured value of the wedge-shaped long belt, and the detection accuracy of the angle error of the wedge-shaped long belt can be improved based on the angle error.
As a preferred technical scheme, the step of driving the wedge-shaped long belt to pass through the detection area for a plurality of times through the moving component and obtaining the data set of the displacement distance and the height measured value of the wedge-shaped long belt based on the detection results of the first spectrum confocal sensor and the second spectrum confocal sensor comprises the following steps:
setting a first detection period;
The wedge-shaped long belt is driven to pass through the detection area for many times through the moving assembly;
acquiring a detection result of the first spectrum confocal sensor, a detection result of the second spectrum confocal sensor and a moving distance of the moving component after each detection period;
calculating and obtaining the height of the wedge-shaped long band based on the detection result of the first spectrum confocal sensor and the detection result of the second spectrum confocal sensor;
based on the height of the wedge-shaped long belt and the moving distance of the moving assembly, a data set of the displacement distance and the height measurement value of the wedge-shaped long belt is obtained.
As a preferred technical solution, the step of obtaining the angle measurement value of the wedge-shaped long belt based on the data set includes:
Fitting the data set, and solving the slope of a fitting straight line;
And (5) solving an angle measurement value of the wedge-shaped long belt based on the slope.
As a preferred technical solution, the step of determining the angle error of the wedge-shaped long belt based on the angle measurement value and the angle design value of the wedge-shaped long belt includes:
repeating steps 103-104 to obtain angle measurement values of a plurality of wedge-shaped long belts
And determining the angle error of the wedge-shaped long belt based on the angle measured values of the plurality of wedge-shaped long belts and the angle design value of the wedge-shaped long belt.
As a preferred technical solution, the step of determining the angle error of the wedge-shaped long belt based on the angle measurement values of the plurality of wedge-shaped long belts and the angle design value of the wedge-shaped long belt includes:
Obtaining the maximum value of angle measurement values of a plurality of wedge-shaped long belts;
and taking the difference between the maximum value and the angle design value as the angle error of the wedge-shaped long belt.
It can be appreciated that when the wedge-shaped long belt is driven by the moving component to pass through the detection zone, the detection result of the first spectrum confocal sensor can be denoted as x1, the detection result of the first spectrum confocal sensor can be denoted as x2, the length of the first end block is denoted as h 01, and the length of the second end block is denoted as h 02.
L 0＝x1+x2+h01 or L 0＝x1+x2+h02
At this time, the calibration of the measuring device can be completed by the above formula (1).
It can be understood that when the wedge-shaped long belt is driven by the moving component for a plurality of times to pass through the detection zone, the measured value x 1i of the first spectrum confocal sensor and the measured value x 2i of the second spectrum confocal sensor are recorded once every interval time t, and the displacement s i at the moment is recorded for n times; the height of the wedge-shaped long belt measured at the ith time is as follows:
hi＝L0-x1i-x2i,i＝1,2,…,n
the measured s= { S i |i=1, 2, …, n } and h= { h i |i=1, 2, …, n } can form a point set p= { (S i,hi) |i=1, 2, …, n } in a coordinate system formed by an X axis and a Y axis, the point set P is fitted with a straight line by a least square method, and the slope k of the fitted straight line is recorded;
Driving the wedge-shaped long belt to move through the moving assembly for a plurality of times, wherein the repeated measurement times are m, and the slope k j (j=1, 2, …, m) of each measurement is obtained;
the angle obtained by each measurement is calculated by the formula "θ j＝|arctan(kj) |, j=1, 2, …, m", and the average value of the measurements is calculated
Recording the value as the actual angle measurement result of the wedge-shaped long belt, setting the angle design value of the wedge-shaped long belt as theta 0, and then measuring the angle error of the wedge-shaped long belt as
Δθ＝max(θj-θ0),j＝1,2,…,m。
The foregoing description of embodiments of the invention has been presented for purposes of illustration and description, and is not intended to be exhaustive or limited to the embodiments disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the various embodiments described.
Claims (9)
1. The angle error detection method of the wedge-shaped long belt is characterized by being applied to an angle error detection device of the wedge-shaped long belt, and comprises the following steps of:
step 101: the wedge-shaped long belt is arranged on the clamp, the first end block is used for being arranged at one end of the wedge-shaped long belt, and the second end block is used for being arranged at the other end of the wedge-shaped long belt;
Step 102: the moving assembly drives the wedge-shaped long belt to pass through the detection area, and the detection device is calibrated based on the detection result of the first spectrum confocal sensor, the detection result of the second spectrum confocal sensor, the length value of the first end block and the length value of the second end block;
Step 103: driving the wedge-shaped long belt to pass through the detection area for multiple times through a moving assembly, and acquiring a data set of displacement distance and height measurement values of the wedge-shaped long belt based on detection results of the first spectrum confocal sensor and the second spectrum confocal sensor;
step 104: based on the data set, calculating an angle measurement value of the wedge-shaped long belt;
Step 105: determining an angle error of the wedge-shaped long belt based on the angle measurement value and an angle design value of the wedge-shaped long belt;
Wherein, the angle error detection device of wedge long tape includes:
A work table;
The mounting frame is arranged on the workbench;
the first spectral confocal sensor is arranged on the mounting frame, and the detection direction faces the workbench;
the second spectrum confocal sensor is arranged on the mounting frame, the detection direction faces the workbench, and a gap is reserved between the first spectrum confocal sensor and the second spectrum confocal sensor;
the moving assembly is arranged on the workbench;
The clamp is arranged on the moving assembly and used for fixing the wedge-shaped long belt, and the moving assembly is used for driving the clamp to move so that the fixed wedge-shaped long belt on the clamp passes through the detection areas of the first spectrum confocal sensor and the second spectrum confocal sensor;
The first end block is used for being arranged at one end of the wedge-shaped long belt, and the second end block is used for being arranged at the other end of the wedge-shaped long belt.
2. The method according to claim 1, wherein the step of obtaining a dataset of displacement distance and height measurement values of the wedge-shaped long belt based on detection results of the first and second spectrum confocal sensors by driving the wedge-shaped long belt through the detection area a plurality of times by the moving assembly comprises:
setting a first detection period;
the wedge-shaped long belt is driven to pass through the detection area for multiple times through the moving assembly;
acquiring a detection result of the first spectrum confocal sensor, a detection result of the second spectrum confocal sensor and a moving distance of the moving component after each detection period;
Calculating and acquiring the height of the wedge-shaped long belt based on the detection result of the first spectrum confocal sensor and the detection result of the second spectrum confocal sensor;
And acquiring a data set of displacement distance and height measurement value of the wedge-shaped long belt based on the height of the wedge-shaped long belt and the moving distance of the moving assembly.
3. The method of claim 2, wherein the step of determining the angular measurement of the wedge-shaped long strip based on the data set comprises:
Fitting the data set, and solving the slope of a fitting straight line;
and based on the slope, obtaining an angle measurement value of the wedge-shaped long belt.
4. The angle error detection method of a wedge-shaped long tape according to claim 3, wherein the step of determining the angle error of the wedge-shaped long tape based on the angle measurement value and the angle design value of the wedge-shaped long tape comprises:
repeating steps 103-104 to obtain angle measurement values of a plurality of wedge-shaped long belts
And determining the angle error of the wedge-shaped long belt based on the angle measured values of the plurality of wedge-shaped long belts and the angle design value of the wedge-shaped long belt.
5. The method of detecting an angle error of a wedge-shaped long tape according to claim 4, wherein the step of determining an angle error of the wedge-shaped long tape based on the angle measurement values of the plurality of wedge-shaped long tapes and the angle design value of the wedge-shaped long tape comprises:
Obtaining the maximum value of angle measurement values of a plurality of wedge-shaped long belts;
And taking the difference value between the maximum value and the angle design value as the angle error of the wedge-shaped long belt.
6. The method for detecting angular errors of a wedge-shaped long tape according to claim 1, wherein the mounting frame comprises:
the first mounting frame is arranged on one side of the workbench;
the second mounting bracket is connected to the first mounting bracket and is arranged on one side of the first mounting bracket, and the first spectrum confocal sensor and the second spectrum confocal sensor are arranged on the second mounting bracket.
7. The method for detecting angular errors of a wedge-shaped long tape according to claim 6, wherein the mounting frame further comprises:
A first sensor clamp connected to the second mounting bracket, the first spectral confocal sensor being connected to the first sensor clamp;
And the second sensor clamp is connected with the second mounting frame, and the second spectral confocal sensor is connected with the second sensor clamp.
8. The method of angle error detection for a wedge-shaped long tape according to claim 1, wherein the moving assembly comprises:
a linear movement shaft provided on the table;
The support slide block is arranged on the linear motion shaft, and the clamp is arranged on the support slide block.
9. The angle error detection method of a wedge-shaped long tape according to claim 1, further comprising:
the limiting columns are arranged on the workbench at intervals, and the limiting columns are positioned on the same straight line;
And the magnetic positioning piece is arranged on the wedge-shaped long belt and can generate magnetic attractive force with the clamp.
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| CN101403609A (en) * | 2008-11-18 | 2009-04-08 | 中国科学院长春光学精密机械与物理研究所 | Method for non-contact workpiece angle measurement by using laser displacement transducer |
| CN102059589B (en) * | 2010-10-21 | 2013-04-17 | 大连理工大学 | Device and method for detecting inclination angle error of laser displacement sensor |
| FI125119B (en) * | 2011-12-28 | 2015-06-15 | Metso Automation Oy | Measurement of a flat measuring object |
| CN106441168B (en) * | 2016-08-30 | 2019-01-04 | 南京理工大学 | The measurement method of linear rolling guide slider type face precision |
| CN106840615B (en) * | 2017-03-24 | 2023-04-28 | 中国工程物理研究院应用电子学研究所 | An online pupil measuring device and calibration method based on imaging conjugate |
| CN110749292A (en) * | 2018-07-23 | 2020-02-04 | 宝钢新日铁汽车板有限公司 | Online air knife angle detection device and method |
| JP7087824B2 (en) * | 2018-08-23 | 2022-06-21 | 株式会社デンソー | Angle detection device and angle detection method |
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