CN215572752U - Angle error detection device of wedge-shaped long belt - Google Patents
Angle error detection device of wedge-shaped long belt Download PDFInfo
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- CN215572752U CN215572752U CN202121562539.8U CN202121562539U CN215572752U CN 215572752 U CN215572752 U CN 215572752U CN 202121562539 U CN202121562539 U CN 202121562539U CN 215572752 U CN215572752 U CN 215572752U
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Abstract
The utility model provides an angle error detection device of a wedge-shaped long belt, which comprises a workbench; the mounting frame 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, the clamp 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 wedge-shaped long belt comprises a first end measuring block and a second end measuring block, wherein the first end measuring block is used for being arranged at one end of the wedge-shaped long belt, and the second end measuring block is used for being arranged at the other end of the wedge-shaped long belt. The angle error detection device of the wedge-shaped long belt can improve the detection precision of the angle error of the wedge-shaped long belt.
Description
Technical Field
The utility model belongs to the field of product geometric error detection and evaluation, and particularly relates to an angle error detection device for a wedge-shaped long belt.
Background
The wedge-shaped long belt is a part involved in a mechanical connecting structure, and the angle error of the wedge-shaped long belt is an important index influencing the performance of the connecting structure and needs to be accurately acquired before assembly.
The wedge-shaped long belt is a flexible part, the ratio of the maximum width to the length of the wedge-shaped long belt is usually more than 20 times, so that after the wedge-shaped long belt is processed, no small aging deformation and stress deformation are necessarily caused, and the deformation influences the error evaluation; in addition, the wedge-shaped long belt is closer to the tail part, and the height of the wedge-shaped long belt is lower, so that great difficulty is brought to clamping; therefore, these deformations cause great difficulties in the measurement of the angular error of the wedge-shaped strip. The existing measuring method adopts a three-coordinate measuring machine for measurement, a wedge-shaped strip needs to be placed on a platform and is tightly pressed by an iron block, the method is long in measuring time and easy to hit a pin, and in addition, a contact type measuring head of the three-coordinate measuring machine can push the wedge-shaped strip in the measuring process, so that the measuring accuracy is influenced.
The information disclosed in this background section is only for enhancement of understanding of the general background of the utility model 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.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide an angle error detection device and method for a wedge-shaped long belt, which 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 detecting device for a wedge-shaped long strip, including:
a work table;
the mounting frame is arranged on the workbench;
the first spectrum confocal sensor is arranged on the mounting rack, and the detection direction of the first spectrum confocal sensor 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 spectral confocal sensor and the second spectral confocal sensor;
the wedge-shaped long belt comprises a first end measuring block and a second end measuring block, wherein the first end measuring block is used for being arranged at one end of the wedge-shaped long belt, and the second end measuring block is used for being arranged at the other end of the wedge-shaped long belt.
In any one of the above technical solutions, preferably, the mounting bracket includes:
the first mounting frame is arranged on one side of the workbench;
the second mounting rack is connected to the first mounting rack and arranged on one side of the first mounting rack, and the first spectrum confocal sensor and the second spectrum confocal sensor are arranged on the second mounting rack.
In any one of the above technical solutions, preferably, the mounting bracket further includes:
the first sensor clamp is connected to the second mounting frame, and the first spectrum confocal sensor is connected to the first sensor clamp;
and the second sensor clamp is connected to the second mounting frame, and the second spectrum confocal sensor is connected to the second sensor clamp.
In any one of the above technical solutions, preferably, the moving assembly includes:
a linear motion shaft disposed on the table;
and the supporting sliding block is arranged on the linear motion shaft, and the clamp is arranged on the supporting sliding block.
In any of the above technical solutions, preferably, the method further includes:
the limiting columns are arranged on the workbench at intervals and are positioned on the same straight line;
and the magnetic positioning piece is arranged on the wedge-shaped long belt and can generate magnetic attraction with the clamp.
The utility model has the beneficial effects that: the angle error detection device for the wedge-shaped long belt is characterized in that the wedge-shaped long belt is arranged on a clamp in the use process, the wedge-shaped long belt is fixed through the clamp, then the first end measuring block is arranged at one end of the wedge-shaped long belt, and the second end measuring block is arranged at the other end of the wedge-shaped long belt. Defining the connecting line direction between the first spectrum confocal sensor and the second spectrum confocal sensor as the X-axis direction, driving the wedge-shaped long belt to move along the Y-axis direction perpendicular to the X axis by the moving assembly, calibrating the detection device based on the detection results of the first spectrum confocal sensor and the second spectrum confocal sensor and the lengths of the first end measuring block and the second end measuring block, after calibrating the detection device, driving the wedge-shaped long belt to move along the Y-axis direction for multiple times by the moving assembly, acquiring a 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, fitting the data set, acquiring the slope of a fitting line, acquiring the angle measurement value of the wedge-shaped long belt in time based on the slope, acquiring the angle error of the wedge-shaped long belt based on the angle measurement value of the wedge-shaped long belt, based on this, the detection accuracy of the angle error of the wedge-shaped long belt can be improved.
Additional features and advantages of the utility model will be set forth in the detailed description which follows.
Drawings
The above and other objects, features and advantages of the present invention will become more apparent by describing in more detail exemplary embodiments thereof with reference to the attached drawings, in which like reference numerals generally represent like parts throughout.
FIG. 1 shows a schematic block diagram of an angle error detection device for a wedge-shaped long strip according to one embodiment of the present invention.
FIG. 2 shows a flow chart of illustrative steps of a method of detecting an angle error of a wedge-shaped long strip in accordance with one embodiment of the present invention.
Description of reference numerals:
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 strip; 8. a first mounting bracket; 9. a second mounting bracket; 10. a first sensor clamp; 11. a second sensor clamp; 12. a linear motion shaft; 13. a support slide block; 14. a limiting column; 15. a magnetic positioning member; 16. a first end gauge block; 17. and a second end gauge block.
Detailed Description
Preferred embodiments of the present invention will be described in more detail below. While the following describes preferred embodiments of the present invention, it should be understood that the present invention may be embodied in various forms and should not be limited by 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 utility model to those skilled in the art.
FIG. 1 shows a schematic block diagram of an angle error detection device for a wedge-shaped long strip according to one embodiment of the present invention. FIG. 2 shows a flow chart of illustrative steps of a method of detecting an angle error of a wedge-shaped long strip in accordance with one embodiment of the present invention.
As shown in fig. 1, the present invention provides an angle error detecting device for a wedge-shaped long belt, including: a work table 1; the mounting frame 2 is arranged on the workbench 1; the first spectrum 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 arranged on the worktable 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 gauge 16 and a second end gauge 17, the first end gauge 16 being adapted to be disposed at one end of wedge-shaped strip 7, the second end gauge 17 being adapted to be disposed at the other end of wedge-shaped strip 7.
In the angle error detection device of the wedge-shaped long belt 7, the wedge-shaped long belt 7 is arranged on a clamp 6 in the using process, the wedge-shaped long belt 7 is fixed through the clamp 6, then a first end measuring block 16 is arranged at one end of the wedge-shaped long belt 7, and a second end measuring block 17 is arranged at the other end of the wedge-shaped long belt 7. Defining the connecting line direction between the first spectrum confocal sensor 3 and the second spectrum confocal sensor 4 as the X-axis direction, driving the wedge-shaped long belt 7 to move along the Y-axis direction perpendicular to the X-axis direction through the moving component 5, calibrating the detection device based on the detection results of the first spectrum confocal sensor 3 and the second spectrum confocal sensor 4 in combination with the lengths of the first end measuring block 16 and the second end measuring block 17, after calibrating the detection device, driving the wedge-shaped long belt 7 to move along the Y-axis direction for multiple times through the moving component 5, acquiring a data set of the displacement distance and the height measurement value of the wedge-shaped long belt 7 based on the detection results of the first spectrum confocal sensor 3 and the second spectrum confocal sensor 4, fitting the data set to obtain the slope of the fitting straight line, and further acquiring the angle measurement value of the wedge-shaped long belt 7 in time based on the slope, 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 precision of the angle error of the wedge-shaped long belt 7 can be improved based on the angle measurement value.
It will be appreciated that the movement is byWhen the movable assembly 5 drives the wedge-shaped long belt 7 to pass through the detection area, the detection result of the first spectrum confocal sensor 3 can be recorded as x1, the detection result of the first spectrum confocal sensor 3 can be recorded as x2, and the length of the first end gauge block 16 is recorded as h01The length of the second end gauge block 17 is h02。
L0＝x1+x2+h01Or L0＝x1+x2+h02
At this time, the calibration of the measuring apparatus can be completed by the above formula (1).
It will be appreciated that the measured values x of the first spectroscopic confocal sensor 3 are recorded once at intervals t, while the wedge-shaped strip 7 is moved through the detection zone a plurality of times by the movement assembly 51iThe measured value x of the second spectral confocal sensor 42iAnd recording the displacement s at that timeiRecording n times in total; wherein the height of the wedge-shaped long strip 7 measured at the ith time is:
hi＝L0-x1i-x2i,i＝1,2,…,n
measured S ═ Si1,2, …, n, and h { h |iI {(s) } may be formed in a coordinate system including the X axis and the Y axis, and i {(s) } may be formed in the coordinate system including the X axis and the Y axisi,hi) 1,2, …, n }, fitting a point set P by a straight line through a least square method, and recording the slope k of the fitted straight line;
the wedge-shaped long belt 7 is driven to move by the moving component 5 for multiple times, the repeated measurement times are m, and the slope k of each measurement is obtainedj(j＝1,2,…,m)；
By the formula "thetaj＝|arctan(kj) I, j ═ 1,2, …, m ″ calculate the angle obtained for each measurement, calculate the average of the measurements
The value is recorded as the actual angle measurement result of the wedge-shaped long belt 7, and the angle design value of the wedge-shaped long belt 7 is set as theta0Then the angle error of the wedge-shaped long strip 7 is measured as
Δθ＝max(θj-θ0),j＝1,2,…,m。
As a preferred technical solution, the mounting bracket 2 includes: the first mounting frame 8 is arranged on one side of the workbench 1; and the second mounting frame 9 is connected to the first mounting frame 8 and 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 bracket 2 includes: a first mounting rack 8 and a second mounting rack 9 for adjusting the mounting positions of the first spectral confocal sensor 3 and the second spectral confocal sensor 4, and in some examples, the second mounting rack 9 can be slidably connected to the first mounting rack 8 for adjusting the actual heights of the first spectral confocal sensor 3 and the second spectral confocal sensor 4.
As a preferred technical solution, the mounting bracket 2 further includes: the first sensor clamp 10 is connected to the second mounting frame 9, and the first spectrum confocal sensor 3 is connected to the first sensor clamp 10; and the second sensor clamp 11 is connected to the second mounting frame 9, and the second spectrum confocal sensor 4 is connected to the second sensor clamp 11.
In this technical scheme, mounting bracket 2 still includes: the first sensor clamp 10 and the second sensor clamp 11 are arranged so as to firmly fix the first spectral confocal sensor 3 and the second spectral confocal sensor 4.
As a preferred solution, the moving assembly 5 comprises: a linear motion shaft 12 provided on the table 1; and a support slider 13 disposed on the linear motion shaft 12, and the clamp 6 is disposed on the support slider 13.
Through the setting of linear motion axle 12 and support slider 13, linear motion axle 12 possesses the ability that the high accuracy removed, and the accurate control wedge of being convenient for is taken certain of 7, is convenient for through the setting of supporting slider 13 fixed to anchor clamps 6, is convenient for take the firm support of 7 to the wedge.
As a preferred technical solution, the method further comprises: the limiting columns 14 are arranged on the workbench 1 at intervals, and the limiting columns 14 are positioned on the same straight line; and the magnetic positioning piece 15 is used for being arranged on the wedge-shaped long strip 7, and the magnetic positioning piece 15 can generate magnetic attraction force with the clamp 6.
In 7 installation of long area 7 of wedge, can set up 7 on anchor clamps 6 earlier long area of wedge, then with the one end butt of 7 of long area of wedge in a plurality of spacing posts 14, can accomplish the location of 7 of long area of wedge, through the fixed 7 of long area of wedge of magnetic positioning piece 15, can prevent that 7 of long area of wedge from appearing the displacement in the removal process for anchor clamps 6.
As shown in fig. 2, according to a second aspect of the present invention, there is provided an angle error detecting method for a wedge-shaped long strip, which is applied to the angle error detecting apparatus for a wedge-shaped long strip according to any one of the above-mentioned embodiments, the detecting method includes:
step 101: the wedge-shaped long belt is arranged on the clamp, the first end measuring block is used for being arranged at one end of the wedge-shaped long belt, and the second end measuring block is used for being arranged 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 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 gauge block and the length value of the second end gauge block;
step 103: the wedge-shaped long belt is driven to pass through the detection area for multiple times through the moving assembly, and a data set of displacement distance and height measurement values of the wedge-shaped long belt is obtained based on detection results of the first spectrum confocal sensor and the second spectrum confocal sensor;
step 104: based on the data set, obtaining an angle measurement value of the wedge-shaped long belt;
step 105: the angle error of the wedge-shaped long strip is determined based on the angle measurement and the angle design value of the wedge-shaped long strip.
The angle error detection device for the wedge-shaped long belt is characterized in that the wedge-shaped long belt is arranged on a clamp in the use process, the wedge-shaped long belt is fixed through the clamp, then the first end measuring block is arranged at one end of the wedge-shaped long belt, and the second end measuring block is arranged at the other end of the wedge-shaped long belt. Defining the connecting line direction between the first spectrum confocal sensor and the second spectrum confocal sensor as the X-axis direction, driving the wedge-shaped long belt to move along the Y-axis direction perpendicular to the X axis by the moving assembly, calibrating the detection device based on the detection results of the first spectrum confocal sensor and the second spectrum confocal sensor and the lengths of the first end measuring block and the second end measuring block, after calibrating the detection device, driving the wedge-shaped long belt to move along the Y-axis direction for multiple times by the moving assembly, acquiring a 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, fitting the data set, acquiring the slope of a fitting line, acquiring the angle measurement value of the wedge-shaped long belt in time based on the slope, acquiring the angle error of the wedge-shaped long belt based on the angle measurement value of the wedge-shaped long belt, based on this, the detection accuracy of the angle error of the wedge-shaped long belt can be improved.
As preferred technical scheme, through removing the subassembly and drive wedge long area many times and pass through the detection zone, based on the testing result of first spectrum confocal sensor and second spectrum confocal sensor, the step of obtaining the displacement distance of wedge long area and the data set of height measurement value includes:
setting a first detection period;
the wedge-shaped long strip is driven to pass through the detection area by the moving assembly for multiple times;
collecting the detection result of the first spectrum confocal sensor, the detection result of the second spectrum confocal sensor and the moving distance of the moving assembly every time a detection period passes;
calculating and acquiring 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 displacement distance and height measurement values of the wedge-shaped long belt is obtained.
As a preferred solution, the step of obtaining an angle measurement for the wedge-shaped long strip based on the data set comprises:
fitting the data set, and solving the slope of a fitting straight line;
based on the slope, an angular measurement of the wedge-shaped strip is taken.
Preferably, the step of determining the angle error of the wedge-shaped long strip based on the angle measurement value and the angle design value of the wedge-shaped long strip comprises:
repeating steps 103-104 to obtain angle measurements for a plurality of wedge-shaped ribbons
An angular error of the wedge-shaped long strip is determined based on the angle measurement values of the plurality of wedge-shaped long strips and the angle design value of the wedge-shaped long strip.
Preferably, the step of determining the angle error of the wedge-shaped long strip based on the angle measurement values of the plurality of wedge-shaped long strips and the angle design value of the wedge-shaped long strip comprises:
obtaining a maximum of the plurality of wedge-shaped long strips;
the difference between the maximum value and the angle design value is taken as the angle error of the wedge-shaped long strip.
It can be understood that when the wedge-shaped long belt is driven by the moving assembly to pass through the detection area, the detection result of the first spectrum confocal sensor can be recorded as x1, the detection result of the first spectrum confocal sensor can be recorded as x2, and the length of the first end measuring block is recorded as h01The length of the second end gauge block is h02。
L0＝x1+x2+h01Or L0＝x1+x2+h02
At this time, the calibration of the measuring apparatus can be completed by the above formula (1).
It will be appreciated that the measurement x of the first spectroscopic confocal sensor is recorded once at intervals t as the wedge-shaped strip is moved through the detection zone by the movement assembly a plurality of times1iSecond spectrum confocal sensor2iAnd recording the displacement s at that timeiRecording n times in total; wherein the height of the wedge-shaped strip measured at the ith time is:
hi＝L0-x1i-x2i,i＝1,2,…,n
measured S ═ Si1,2, …, n, and h { h |iI {(s) } may be formed in a coordinate system including the X axis and the Y axis, and i {(s) } may be formed in the coordinate system including the X axis and the Y axisi,hi) 1,2, …, n }, fitting a point set P by a straight line through a least square method, and recording the slope k of the fitted straight line;
the wedge-shaped long belt is driven to move through the moving assembly for multiple times, the repeated measurement times are m, and the slope k of each measurement is obtainedj(j＝1,2,…,m)；
By the formula "thetaj＝|arctan(kj) I, j ═ 1,2, …, m ″ calculate the angle obtained for each measurement, calculate the average of the measurements
The value is recorded as the actual angle measurement result of the wedge-shaped long belt, and the angle design value of the wedge-shaped long belt is set as theta0Then the measurement of the angle error of the wedge-shaped long strip is
Δθ＝max(θj-θ0),j＝1,2,…,m。
Having described embodiments of the present invention, the foregoing description is intended to be exemplary, not exhaustive, and not 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 described embodiments.
Claims (5)
1. An angle error detecting device for a wedge-shaped long belt, comprising:
a work table;
the mounting frame is arranged on the workbench;
the first spectrum confocal sensor is arranged on the mounting rack, and the detection direction of the first spectrum confocal sensor 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 spectral confocal sensor and the second spectral confocal sensor;
the wedge-shaped long belt comprises a first end measuring block and a second end measuring block, wherein the first end measuring block is used for being arranged at one end of the wedge-shaped long belt, and the second end measuring block is used for being arranged at the other end of the wedge-shaped long belt.
2. The device for detecting angle error of a wedge-shaped long strip according to claim 1, wherein said mounting frame comprises:
the first mounting frame is arranged on one side of the workbench;
the second mounting rack is connected to the first mounting rack and arranged on one side of the first mounting rack, and the first spectrum confocal sensor and the second spectrum confocal sensor are arranged on the second mounting rack.
3. The device for detecting angle error of a wedge-shaped long strip according to claim 2, wherein the mounting frame further comprises:
the first sensor clamp is connected to the second mounting frame, and the first spectrum confocal sensor is connected to the first sensor clamp;
and the second sensor clamp is connected to the second mounting frame, and the second spectrum confocal sensor is connected to the second sensor clamp.
4. The device for detecting angle error of a wedge-shaped long belt according to claim 1, wherein said moving means comprises:
a linear motion shaft disposed on the table;
and the supporting sliding block is arranged on the linear motion shaft, and the clamp is arranged on the supporting sliding block.
5. The device for detecting angle error of a wedge-shaped long belt according to claim 1, further comprising:
the limiting columns are arranged on the workbench at intervals and are positioned on the same straight line;
and the magnetic positioning piece is arranged on the wedge-shaped long belt and can generate magnetic attraction with the clamp.
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| CN202121562539.8U CN215572752U (en) | 2021-07-09 | 2021-07-09 | Angle error detection device of wedge-shaped long belt |
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| CN202121562539.8U CN215572752U (en) | 2021-07-09 | 2021-07-09 | Angle error detection device of wedge-shaped long belt |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113358066A (en) * | 2021-07-09 | 2021-09-07 | 中国工程物理研究院机械制造工艺研究所 | Device and method for detecting angle error of wedge-shaped long strip |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113358066A (en) * | 2021-07-09 | 2021-09-07 | 中国工程物理研究院机械制造工艺研究所 | Device and method for detecting angle error of wedge-shaped long strip |
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