CN113284143A - Die casting deburring precision detection system based on image data processing - Google Patents
Die casting deburring precision detection system based on image data processing Download PDFInfo
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Abstract
The invention discloses a die casting deburring precision detection system based on image data processing, which comprises a die casting image acquisition module, a burr length extraction comparison module, a burr area reference value acquisition module, a burr area reference value comparison module and a deburring instruction transmission module.
Description
Technical Field
The invention relates to the technical field of burr detection, in particular to a die casting deburring precision detection system based on image data processing.
Background
Deburring is the removal of excess portions formed where the faces of the part meet. The existence of the burr may cause that the whole mechanical system can not work normally, and the reliability and the stability of the system are reduced, for example, when a machine with the burr does mechanical motion or vibration, the falling burr can cause the premature wear of the sliding surface of the machine, the noise is increased, even the mechanism is blocked, and the action is failed. Therefore, removal of the burr is very important.
In the prior art, whether burrs are removed or not is mostly detected according to artificial subjectivity, and the mode mainly depends on experience, so that an effective technical means is lacked for more accurately detecting whether burrs are removed or not.
Disclosure of Invention
The invention aims to provide a die casting deburring precision detection system based on image data processing, and aims to solve the problems in the background technology.
In order to solve the technical problems, the invention provides the following technical scheme: a die casting deburring precision detection system based on image data processing comprises a die casting image acquisition module, a burr length extraction comparison module, a burr area reference value acquisition module, a burr area reference value comparison module and a deburring instruction transmission module, wherein the die casting image acquisition module is used for acquiring die casting images and extracting burr images on a die casting, the burr length extraction comparison module is used for acquiring the lengths of burrs from the burr images extracted from the die casting images when the die casting images are acquired for the first time, the length of a certain burr on the die casting image is larger than or equal to a burr length threshold value, the deburring instruction transmission module and the burr area reference value acquisition module are sequentially enabled to work, the deburring instruction transmission module is used for transmitting information to a deburring device, the die casting is deburred, when the lengths of all burrs on a burr image are smaller than a burr length threshold value, the burr area reference value acquisition module is directly enabled to work, the burr area reference value acquisition module acquires the image of the die casting again, and the area of each burr on the die casting is extractedCalculating area reference value of die casting burr according to maximum width of small burr and each burr
Wherein i represents the ith burr on the die casting, n represents the number of burrs on the die casting,
the maximum width of the ith burr is shown, L is the surface width of the die casting,
and the area of the ith burr is represented, the burr area reference value comparison module compares the die casting burr area reference value with an area reference threshold value, when the area reference value is greater than or equal to the area reference threshold value, the deburring instruction transmission module works, and when the area reference value is smaller than the area reference threshold value, the die casting deburring detection is judged to be qualified.
The deburring precision detection system further comprises a deburring index calculation module, a deburring index comparison module and an overhaul analysis judgment module, wherein the deburring index calculation module adds 1 to a deburring index k every time the deburring instruction transmission module works, and the initial value of the deburring index k of a certain die casting is 0; the deburring index comparison module is used for comparing a deburring index with a deburring index threshold value, the maintenance analysis judgment module is enabled to work when the deburring index k is larger than or equal to the deburring threshold value, the maintenance analysis judgment module is used for analyzing the deburring condition of the deburring equipment and judging whether the deburring equipment needs to be maintained or not, and when the deburring index k is smaller than the deburring threshold value, the deburring area reference value acquisition module is enabled to work until the die casting deburring detection is judged to be qualified or the deburring area reference value acquisition module is enabled to work until the deburring index k is judged to be larger than or equal to the deburring threshold value.
Further, the overhaul analysis and judgment module comprises an area reference value statistic module and a first change value calculation and comparison module, wherein the area reference value statistic module is used for acquiring the die-castingAll area reference values P calculated1、P2、…Pj…、Pm-1、PmWherein P isjThe first change value calculation comparing module calculates a first change value G1= (P)1-Pm)/P1And if the first change value is smaller than the first change threshold value, transmitting information to repair the deburring device.
Further, the overhaul analysis and judgment module further comprises a second change value calculation module, an image to be analyzed selection module, a burr division module, a continuous index calculation module and a continuous index comparison module, wherein when the first change value is greater than the first change threshold value, the second change value calculation module calculates a second change value G2= (P) according to the second change value calculation modulem-1-Pm)/Pm-1And comparing the second change value with a second change threshold, when the second change value is smaller than the second change threshold, enabling the image to be analyzed selection module to acquire and extract the area of each burr image on the current die casting, sorting the burr images in the sequence from large to small, selecting the corresponding burr image sorted in the first sequence as the image to be analyzed, dividing the image to be analyzed into a plurality of sections of burrs at equal intervals along the surface direction of the die casting by the burr dividing module, setting the number of the sections of the burrs as d, respectively acquiring the area U of each section of the burrs by the continuous index calculation module, and calculating the continuous index V of the c-th burrc=|Uc+1-Uc|/UcWherein the value range of c is 1 to d-1, UcThe area of the section c of the burr is shown; and the continuous index comparison module compares the continuous indexes of the divided burrs with a continuous index threshold, and judges that the deburring detection of the die casting is qualified when the continuous indexes of all the divided burrs are smaller than the continuous index threshold.
Further, the deburring precision detection system further comprises a deburring precision detection method, and the deburring precision detection method comprises the following steps:
step S1: collecting an original image of the die casting, extracting each burr image on the die casting from the original image, and extracting the length of each burr from the burr image, wherein the initial value of a deburring index k of the die casting is set to be 0, and turning to step S2;
step S2: comparing the length of the extracted burr with a burr length threshold value, if the length of a certain burr on a burr image is larger than or equal to the burr length threshold value, transmitting information to a deburring device, deburring the die casting, adding 1 to k, and turning to the step S3; if the lengths of all burrs on the burr image are smaller than the burr length threshold value, turning to step S3;
step S3: the method comprises the steps of re-collecting images of the die casting, extracting the area of each burr on the die casting and the maximum width of each burr to calculate an area reference value of the die casting burr, comparing the area reference value of the die casting burr with an area reference threshold value, if the area reference value is larger than or equal to the area reference threshold value, transmitting information to a deburring device, deburring the die casting, adding 1 to k, and turning to step S4, and if the area reference value is smaller than the area reference threshold value, turning to step S5;
step S4: comparing the deburring index k with a deburring threshold, if the deburring index k is larger than or equal to the deburring threshold, turning to the step S6, and if the deburring index k is smaller than the deburring threshold, turning to the step S3;
step S5: the die casting is qualified in deburring detection;
step S6: and analyzing the deburring condition of the deburring equipment, and judging whether the deburring equipment needs to be overhauled or not.
Further, the calculating of the area reference value of the die casting burr in the step S3 includes:
area reference value of die casting burr
Wherein i represents the ith burr on the die casting, n represents the number of burrs on the die casting,
the maximum width of the ith burr is shown, L is the surface width of the die casting,
the area of the ith spur is shown.
Further, the step S6 further includes:
all area reference values P calculated by the die casting are obtained1、P2、…Pj…、Pm-1、PmWherein P isjThe area reference value of the die casting burr obtained by the j-th calculation is shown, m is the number of times the area reference value is calculated by the die casting,
calculate a first variation value G1= (P)1-Pm)/P1And if the first change value is smaller than the first change threshold value, transmitting information to repair the deburring device.
8. The die casting deburring precision detection system based on image data processing of claim 7, characterized in that: the step S6 further includes:
if the first variation value is greater than the first variation threshold, a second variation value G2= (P) is calculatedm-1-Pm)/Pm-1，
When the second change value is smaller than the second change threshold value, acquiring and extracting the area of each burr image on the current die casting, sequencing the burr images from large to small, selecting the corresponding burr image sequenced in the first sequence as an image to be analyzed, dividing the image to be analyzed into a plurality of sections of burrs at equal intervals along the surface direction of the die casting, setting the number of the sections of the burrs as d, respectively acquiring the area U of each section of the burrs,
calculating the continuity index V of the c-th branchc=|Uc+1-Uc|/UcWherein the value range of c is 1 to d-1, UcThe area of the section c of the burr is shown;
and if the continuous indexes of all the burrs are smaller than the continuous index threshold value, the die casting deburring detection is qualified, wherein d is a natural number.
Compared with the prior art, the invention has the following beneficial effects: according to the method, under the condition that the length of the burrs is larger than the burr length threshold value, the die casting is deburred firstly, so that the frequency of judging whether deburring is required or not through the area reference value of the burrs of the die casting in the follow-up process is reduced, meanwhile, the frequency of deburring is counted, and whether the deburring equipment is required to be overhauled or not is judged according to the frequency.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
FIG. 1 is a module schematic diagram of a die casting deburring precision detection system based on image data processing.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, the present invention provides a technical solution:
a die casting deburring precision detection system based on image data processing comprises a die casting image acquisition module, a burr length extraction comparison module, a burr area reference value acquisition module, a burr area reference value comparison module and a deburring instruction transmission module, wherein the die casting image acquisition module is used for acquiring die casting images and extracting burr images on a die casting, the burr length extraction comparison module is used for acquiring the lengths of burrs from the burr images extracted from the die casting images when the die casting images are acquired for the first time, the length of a certain burr on the die casting image is larger than or equal to a burr length threshold value, the deburring instruction transmission module and the burr area reference value acquisition module are sequentially enabled to work, the deburring instruction transmission module is used for transmitting information to a deburring device, for the die casting intoAnd (3) deburring, when the lengths of all burrs on the burr image are smaller than the burr length threshold value, directly enabling a burr area reference value acquisition module to work, acquiring the image of the die casting again by the burr area reference value acquisition module, extracting the size of the area of each burr on the die casting and the maximum width of each burr, and calculating the area reference value of the burr of the die casting
Wherein i represents the ith burr on the die casting, n represents the number of burrs on the die casting,
the maximum width of the ith burr is shown, L is the surface width of the die casting,
and the area of the ith burr is represented, the burr area reference value comparison module compares the die casting burr area reference value with an area reference threshold value, when the area reference value is greater than or equal to the area reference threshold value, the deburring instruction transmission module works, and when the area reference value is smaller than the area reference threshold value, the die casting deburring detection is judged to be qualified.
The deburring precision detection system also comprises a deburring index calculation module, a deburring index comparison module and an overhaul analysis judgment module, wherein the deburring index calculation module adds 1 to a deburring index k every time the deburring instruction transmission module works, and the initial value of the deburring index k of a certain die casting is 0; the deburring index comparison module is used for comparing a deburring index with a deburring index threshold value, the maintenance analysis judgment module is enabled to work when the deburring index k is larger than or equal to the deburring threshold value, the maintenance analysis judgment module is used for analyzing the deburring condition of the deburring equipment and judging whether the deburring equipment needs to be maintained or not, and when the deburring index k is smaller than the deburring threshold value, the deburring area reference value acquisition module is enabled to work until the die casting deburring detection is judged to be qualified or the deburring area reference value acquisition module is enabled to work until the deburring index k is judged to be larger than or equal to the deburring threshold value.
The overhaul analysis and judgment module comprises an area reference value statistic module and a first change value calculation and comparison module, wherein the area reference value statistic module is used for acquiring all area reference values P calculated by the die casting1、P2、…Pj…、Pm-1、PmWherein P isjThe first change value calculation comparing module calculates a first change value G1= (P)1-Pm)/P1And if the first change value is smaller than the first change threshold value, transmitting information to repair the deburring device.
The overhaul analysis judgment module further comprises a second change value calculation module, an image selection module to be analyzed, a burr division module, a continuous index calculation module and a continuous index comparison module, and when the first change value is larger than a first change threshold value, the second change value calculation module calculates a second change value G2= (P)m-1-Pm)/Pm-1And comparing the second change value with a second change threshold, when the second change value is smaller than the second change threshold, enabling the image to be analyzed selection module to acquire and extract the area of each burr image on the current die casting, sorting the burr images in the sequence from large to small, selecting the corresponding burr image sorted in the first sequence as the image to be analyzed, dividing the image to be analyzed into a plurality of sections of burrs at equal intervals along the surface direction of the die casting by the burr dividing module, setting the number of the sections of the burrs as d, respectively acquiring the area U of each section of the burrs by the continuous index calculation module, and calculating the continuous index V of the c-th burrc=|Uc+1-Uc|/UcWherein the value range of c is 1 to d-1, UcThe area of the section c of the burr is shown; and the continuous index comparison module compares the continuous indexes of the divided burrs with a continuous index threshold, and judges that the deburring detection of the die casting is qualified when the continuous indexes of all the divided burrs are smaller than the continuous index threshold.
The deburring precision detection system further comprises a deburring precision detection method, and the deburring precision detection method comprises the following steps:
step S1: collecting an original image of the die casting, extracting each burr image on the die casting from the original image, and extracting the length of each burr from the burr image, wherein the initial value of a deburring index k of the die casting is set to be 0, and turning to step S2;
step S2: comparing the length of the extracted burr with a burr length threshold value, if the length of a certain burr on a burr image is larger than or equal to the burr length threshold value, transmitting information to a deburring device, deburring the die casting, adding 1 to k, and turning to the step S3; if the lengths of all the burrs on the burr image are smaller than the burr length threshold value, directly turning to the step S3; if the length of the burr is too long, the burr is surely removed, so that the situation that the burr is not required to be removed by directly calculating and judging according to the area reference value of the burr is avoided, the operation amount is relatively reduced, but the types of the burr are various, and the burr is not required to be removed only by judging according to the length of the burr, so that the accuracy is not high.
Step S3: the method comprises the steps of re-collecting images of the die casting, extracting the area of each burr on the die casting and the maximum width of each burr to calculate an area reference value of the die casting burr, comparing the area reference value of the die casting burr with an area reference threshold value, if the area reference value is larger than or equal to the area reference threshold value, transmitting information to a deburring device, deburring the die casting, adding 1 to k, and turning to step S4, and if the area reference value is smaller than the area reference threshold value, turning to step S5;
step S4: comparing the deburring index k with a deburring threshold, if the deburring index k is larger than or equal to the deburring threshold, turning to the step S6, and if the deburring index k is smaller than the deburring threshold, turning to the step S3;
step S5: the die casting is qualified in deburring detection;
step S6: and analyzing the deburring condition of the deburring equipment, and judging whether the deburring equipment needs to be overhauled or not.
The calculating of the area reference value of the die casting burr in the step S3 includes:
area reference value of die casting burr
Wherein i represents the ith burr on the die casting, n represents the number of burrs on the die casting,
the maximum width of the ith burr is shown, L is the surface width of the die casting,
the area of the ith spur is shown. The width of the burr is the length of the burr in the direction parallel to the surface of the die casting, the maximum width of the burr is the longest length of the burr in the direction parallel to the surface of the die casting, and most burrs are irregular and some burrs are relatively fine, but the width of the burrs is larger, so that the flatness of the surface of the die casting is seriously affected, and therefore the area reference value is calculated by considering not only the area of the burr but also the width of the burr;
the step S6 further includes:
all area reference values P calculated by the die casting are obtained1、P2、…Pj…、Pm-1、PmWherein P isjThe area reference value of the die casting burr obtained by the j-th calculation is shown, m is the number of times the area reference value is calculated by the die casting,
calculate a first variation value G1= (P)1-Pm)/P1If the first change value is smaller than the first change threshold value, the information is transmitted to overhaul the deburring equipment; when P is present1And PmWhen the difference between the values is small, the deburring effect of the deburring equipment is poor, and the deburring equipment needs to be overhauled;
if the first variation value is greater than the first variation threshold, a second variation value G2= (P) is calculatedm-1-Pm)/Pm-1，
When the second change value is smaller than the second change threshold value, acquiring and extracting the area of each burr image on the current die casting, sequencing the burr images from large to small, selecting the corresponding burr image sequenced in the first sequence as an image to be analyzed, dividing the image to be analyzed into a plurality of sections of burrs at equal intervals along the surface direction of the die casting, setting the number of the sections of the burrs as d, respectively acquiring the area U of each section of the burrs,
calculating the continuity index V of the c-th branchc=|Uc+1-Uc|/UcWherein the value range of c is 1 to d-1, UcThe area of the section c of the burr is shown; when the first change value is larger than the first change threshold value, and the second change value is smaller than the second change threshold value, it is described that the deburring device can perform significant deburring on the die casting, but as the burr is smaller and smaller, the deburring effect is smaller and smaller, but probably because the length of the burr covered on the surface of the die casting is longer, namely the attaching length of the burr and the surface of the die casting is longer, and the second change value caused by the smaller distance between the highest position of the burr and the surface of the die casting is smaller, in this case, if the surface of the burr is relatively smooth, the influence on the operation of the die casting is small, and at this time, the deburring detection can be judged to be qualified.
And if the continuous indexes of all the burrs are smaller than the continuous index threshold value, the die casting deburring detection is qualified, wherein d is a natural number.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. A die casting deburring precision detection system based on image data processing is characterized by comprising a die casting image acquisition module, a burr length extraction comparison module, a burr area reference value acquisition module, a burr area reference value comparison module and a deburring instruction transmission module, wherein the die casting image acquisition module is used for acquiring die casting images and extracting burr images on a die casting from the die casting images, the burr length extraction comparison module is used for acquiring the lengths of burrs from the burr images extracted from the die casting images when the die casting images are acquired for the first time, the length of a certain burr on the die casting image is larger than or equal to a burr length threshold value, the deburring instruction transmission module and the burr area reference value acquisition module are sequentially made to work, and the deburring instruction transmission module is used for transmitting information to deburring equipment, the die casting is deburred, when the lengths of all burrs on a burr image are smaller than a burr length threshold value, the burr area reference value acquisition module is directly made to work, the image of the die casting is acquired again by the burr area reference value acquisition module, the size of the area of each burr on the die casting and the maximum width of each burr are extracted, and the area reference value of the burr of the die casting is calculated
Wherein i represents the ith burr on the die casting, n represents the number of burrs on the die casting,
represents the ithThe maximum width of the burr, L represents the surface width of the die cast part,
and the area of the ith burr is represented, the burr area reference value comparison module compares the die casting burr area reference value with an area reference threshold value, when the area reference value is greater than or equal to the area reference threshold value, the deburring instruction transmission module works, and when the area reference value is smaller than the area reference threshold value, the die casting deburring detection is judged to be qualified.
2. The die casting deburring precision detection system based on image data processing according to claim 1, characterized in that: the deburring precision detection system also comprises a deburring index calculation module, a deburring index comparison module and an overhaul analysis judgment module, wherein the deburring index calculation module adds 1 to a deburring index k every time the deburring instruction transmission module works, and the initial value of the deburring index k of a certain die casting is 0; the deburring index comparison module is used for comparing a deburring index with a deburring index threshold value, the maintenance analysis judgment module is enabled to work when the deburring index k is larger than or equal to the deburring threshold value, the maintenance analysis judgment module is used for analyzing the deburring condition of the deburring equipment and judging whether the deburring equipment needs to be maintained or not, and when the deburring index k is smaller than the deburring threshold value, the deburring area reference value acquisition module is enabled to work until the die casting deburring detection is judged to be qualified or the deburring area reference value acquisition module is enabled to work until the deburring index k is judged to be larger than or equal to the deburring threshold value.
3. The die casting deburring precision detection system based on image data processing according to claim 2, characterized in that: the overhaul analysis and judgment module comprises an area reference value statistic module and a first change value calculation and comparison module, wherein the area reference value statistic module is used for acquiring all area reference values P calculated by the die casting1、P2、…Pj…、Pm-1、PmWherein P isjThe first change value calculation comparing module calculates a first change value G1= (P)1-Pm)/P1And if the first change value is smaller than the first change threshold value, transmitting information to repair the deburring device.
4. The die casting deburring precision detection system based on image data processing of claim 3, characterized in that: the overhaul analysis judgment module further comprises a second change value calculation module, an image selection module to be analyzed, a burr division module, a continuous index calculation module and a continuous index comparison module, and when the first change value is larger than a first change threshold value, the second change value calculation module calculates a second change value G2= (P)m-1-Pm)/Pm-1And comparing the second change value with a second change threshold, when the second change value is smaller than the second change threshold, enabling the image to be analyzed selection module to acquire and extract the area of each burr image on the current die casting, sorting the burr images in the sequence from large to small, selecting the corresponding burr image sorted in the first sequence as the image to be analyzed, dividing the image to be analyzed into a plurality of sections of burrs at equal intervals along the surface direction of the die casting by the burr dividing module, setting the number of the sections of the burrs as d, respectively acquiring the area U of each section of the burrs by the continuous index calculation module, and calculating the continuous index V of the c-th burrc=|Uc+1-Uc|/UcWherein the value range of c is 1 to d-1, UcThe area of the section c of the burr is shown; and the continuous index comparison module compares the continuous indexes of the divided burrs with a continuous index threshold, and judges that the deburring detection of the die casting is qualified when the continuous indexes of all the divided burrs are smaller than the continuous index threshold.
5. The die casting deburring precision detection system based on image data processing according to claim 1, characterized in that: the deburring precision detection system further comprises a deburring precision detection method, and the deburring precision detection method comprises the following steps:
step S1: collecting an original image of the die casting, extracting each burr image on the die casting from the original image, and extracting the length of each burr from the burr image, wherein the initial value of a deburring index k of the die casting is set to be 0, and turning to step S2;
step S2: comparing the length of the extracted burr with a burr length threshold value, if the length of a certain burr on a burr image is larger than or equal to the burr length threshold value, transmitting information to a deburring device, deburring the die casting, adding 1 to k, and turning to the step S3; if the lengths of all burrs on the burr image are smaller than the burr length threshold value, turning to step S3;
step S3: the method comprises the steps of re-collecting images of the die casting, extracting the area of each burr on the die casting and the maximum width of each burr to calculate an area reference value of the die casting burr, comparing the area reference value of the die casting burr with an area reference threshold value, if the area reference value is larger than or equal to the area reference threshold value, transmitting information to a deburring device, deburring the die casting, adding 1 to k, and turning to step S4, and if the area reference value is smaller than the area reference threshold value, turning to step S5;
step S4: comparing the deburring index k with a deburring threshold, if the deburring index k is larger than or equal to the deburring threshold, turning to the step S6, and if the deburring index k is smaller than the deburring threshold, turning to the step S3;
step S5: the die casting is qualified in deburring detection;
step S6: and analyzing the deburring condition of the deburring equipment, and judging whether the deburring equipment needs to be overhauled or not.
6. The die casting deburring precision detection system based on image data processing of claim 5, characterized in that: the calculating of the area reference value of the die casting burr in the step S3 includes:
area reference value of die casting burr
Wherein i represents the ith burr on the die casting, n represents the number of burrs on the die casting,
the maximum width of the ith burr is shown, L is the surface width of the die casting,
the area of the ith spur is shown.
7. The die casting deburring precision detection system based on image data processing of claim 5, characterized in that: the step S6 further includes:
all area reference values P calculated by the die casting are obtained1、P2、…Pj…、Pm-1、PmWherein P isjThe area reference value of the die casting burr obtained by the j-th calculation is shown, m is the number of times the area reference value is calculated by the die casting,
calculate a first variation value G1= (P)1-Pm)/P1And if the first change value is smaller than the first change threshold value, transmitting information to repair the deburring device.
8. The die casting deburring precision detection system based on image data processing of claim 7, characterized in that: the step S6 further includes:
if the first variation value is greater than the first variation threshold, a second variation value G2= (P) is calculatedm-1-Pm)/Pm-1，
When the second change value is smaller than the second change threshold value, acquiring and extracting the area of each burr image on the current die casting, sequencing the burr images from large to small, selecting the corresponding burr image sequenced in the first sequence as an image to be analyzed, dividing the image to be analyzed into a plurality of sections of burrs at equal intervals along the surface direction of the die casting, setting the number of the sections of the burrs as d, respectively acquiring the area U of each section of the burrs,
calculating the continuity index V of the c-th branchc=|Uc+1-Uc|/UcWherein the value range of c is 1 to d-1, UcThe area of the section c of the burr is shown;
and if the continuous indexes of all the burrs are smaller than the continuous index threshold value, the die casting deburring detection is qualified, wherein d is a natural number.
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