CN112388710B - Method and device for cutting edges of board separator, storage medium and board separator - Google Patents
Method and device for cutting edges of board separator, storage medium and board separator Download PDFInfo
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- CN112388710B CN112388710B CN201910766001.XA CN201910766001A CN112388710B CN 112388710 B CN112388710 B CN 112388710B CN 201910766001 A CN201910766001 A CN 201910766001A CN 112388710 B CN112388710 B CN 112388710B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
- B26D5/00—Arrangements for operating and controlling machines or devices for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
- B26D5/005—Computer numerical control means
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T7/00—Image analysis
- G06T7/0002—Inspection of images, e.g. flaw detection
- G06T7/0004—Industrial image inspection
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K3/00—Apparatus or processes for manufacturing printed circuits
- H05K3/0011—Working of insulating substrates or insulating layers
- H05K3/0044—Mechanical working of the substrate, e.g. drilling or punching
- H05K3/0052—Depaneling, i.e. dividing a panel into circuit boards; Working of the edges of circuit boards
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Abstract
The invention discloses a method and a device for cutting edges of a board separator, a storage medium and the board separator. The method comprises the following steps: obtaining a cutting starting reference and a cutting stopping reference of at least one first part to be cut of the reference cutting plate; acquiring a cutting starting point of a second part to be cut of the plate to be cut according to the cutting starting reference; acquiring a cutting end point of a second part to be cut of the board to be cut according to the cutting stop reference; and cutting the second part to be cut according to a cutting path formed by connecting the cutting starting point and the cutting end point. According to the embodiment of the invention, by manufacturing the cutting starting datum and the cutting stopping datum of the datum cutting board, all the same batch can adopt the cutting starting datum and the cutting stopping datum to determine the cutting starting point and the cutting ending point of the current board to be cut so as to obtain the cutting path, so that the problem of over-concave or over-convex cutting of the board edge is solved, and the effect of accurately cutting the board to be cut along the edge is achieved.
Description
Technical Field
The embodiment of the invention relates to the technical field of board separators, in particular to a method and a device for cutting along edges of a board separator, a storage medium and the board separator.
Background
With the rapid development of industry 4.0, it is more and more important to improve the yield of product manufacture.
At present, when a board splitting machine is used for splitting boards, the boards are generally cut at fixed positions according to a set program, the situation that the board edges are cut to be too concave or too convex exists between different boards in the same batch due to the existence of factors such as slight deviation of placement positions during board replacement, if the boards are cut to be too concave, internal circuits can be cut to cause copper leakage, and if the boards are cut to be too convex, the problem that the PCBs cannot be installed due to too large sizes during final assembly is caused.
Disclosure of Invention
The embodiment of the invention provides a method and a device for cutting along the edge of a board separator, a storage medium and the board separator, so as to realize accurate edge cutting of a board to be cut.
In a first aspect, an embodiment of the present invention provides a method for cutting along an edge of a board separator, including:
obtaining a cutting starting reference and a cutting stopping reference of at least one first part to be cut of the reference cutting plate;
acquiring a cutting starting point of a second part to be cut of the plate to be cut according to the cutting starting reference;
acquiring a cutting end point of a second part to be cut of the board to be cut according to the cutting stop reference;
and cutting the second part to be cut according to a cutting path formed by connecting the cutting starting point and the cutting end point.
Optionally, the cutting start reference and the cutting stop reference are determined based on an actual board edge of the reference cutting board.
Optionally, the obtaining of the cutting start reference and the cutting stop reference of the at least one first portion to be cut of the reference cutting plate includes:
acquiring a first image of the reference cutting board;
selecting a first reference point and a second reference point on an edge of one side of a first part to be cut of the first image along a cutting path;
acquiring a first image coordinate of the first reference point and a second image coordinate of the second reference point;
obtaining a third image coordinate of a reference starting point or a reference end point according to the first image coordinate and the second image coordinate;
converting the first image coordinate into a first mechanical coordinate, converting the second image coordinate into a second mechanical coordinate, and converting the third image coordinate into a third mechanical coordinate;
and taking the first mechanical coordinate, the second mechanical coordinate and the third mechanical coordinate as the cutting starting reference or the cutting stopping reference.
Optionally, the obtaining a third image coordinate of the reference starting point or the reference ending point according to the first image coordinate and the second image coordinate includes:
acquiring a fitting trimming edge of the part to be cut according to the first image coordinate and the second image coordinate;
acquiring a first circle center coordinate of a circle which takes the diameter of the cutter as the diameter and is tangent to the fitting trimming edge;
and taking the first circle center coordinate as the third image coordinate.
Optionally, the first image includes a first center point, and the converting the first image coordinate into a first mechanical coordinate includes:
acquiring a fourth image coordinate and a fourth mechanical coordinate of the first central point;
calculating pixel difference values of the fourth image coordinates and the first image coordinates;
obtaining the first mechanical coordinate based on the pixel difference value and the fourth mechanical coordinate.
Optionally, the obtaining a cutting start point of a second portion to be cut of the board to be cut according to the cutting start reference or obtaining a cutting end point of the second portion to be cut of the board to be cut according to the cutting stop reference includes:
acquiring a second image of the board to be cut, wherein the second image comprises a second central point;
setting the reference starting point or the reference end point at a second central point of the second image;
acquiring a sixth image coordinate of the first reference point and a seventh image coordinate of the second reference point based on the fifth image coordinate of the second center point;
obtaining an eighth image coordinate of the cutting starting point or the cutting end point according to the sixth image coordinate and the seventh image coordinate;
converting the eighth image coordinate to an eighth mechanical coordinate;
and taking the eighth mechanical coordinate as the cutting starting point or the cutting end point.
Optionally, the obtaining of the eighth image coordinate of the cutting start point or the cutting end point according to the sixth image coordinate and the seventh image coordinate includes:
acquiring an interested area according to the sixth image coordinate and the seventh image coordinate and then identifying an actual plate edge;
acquiring a second circle center coordinate of a circle which takes the diameter of the cutter as the diameter and is tangent to the fitting trimming edge;
and taking the second circle center coordinate as the eighth image coordinate of the cutting starting point or the cutting end point.
Optionally, before the obtaining of the third image coordinate of the reference starting point or the reference ending point according to the first image coordinate and the second image coordinate, the method includes:
calculating a first difference between the first reference point and the edge;
calculating a second difference between the second reference point and the edge;
judging whether the first difference value and the second difference value meet a preset threshold value or not;
if the first difference and the second difference satisfy the preset threshold; obtaining a third image coordinate of a reference starting point or a reference end point according to the first image coordinate and the second image coordinate;
if the first difference and the second difference do not satisfy the preset threshold; the first reference point and the second reference point are selected again on the edge of one side in the first image.
Optionally, the obtaining of the cutting start reference and the cutting stop reference of the at least one first portion to be cut of the reference cutting plate includes:
obtaining the drawing board edge of the drawing of the reference cutting board;
generating an interested area of an image required for edge finding based on an edge finding algorithm according to the drawing board edge;
determining actual plate edge coordinates according to the region of interest;
and taking the plate edge coordinates as the cutting starting reference and the cutting stopping reference.
In a second aspect, an embodiment of the present invention provides an apparatus for edge cutting of a board separator, including:
the acquisition module is used for acquiring a cutting starting reference and a cutting stopping reference of at least one first part to be cut of the reference cutting plate;
acquiring a cutting starting point of a second part to be cut of the plate to be cut according to the cutting starting reference;
acquiring a cutting end point of a second part to be cut of the board to be cut according to the cutting stop reference;
and the cutting module is used for cutting the second part to be cut according to a cutting path formed by connecting the cutting starting point and the cutting end point.
In a third aspect, an embodiment of the present invention provides a computer-readable storage medium, on which a computer program is stored, where the computer program, when executed by a processor, implements the method for edge-cutting by a board separator according to any embodiment of the present invention.
In a fourth aspect, an embodiment of the present invention provides a board separator, including:
one or more processors;
a storage device for storing one or more programs,
when the one or more programs are executed by the one or more processors, the one or more processors implement the method for edge cutting by the board separator according to any embodiment of the present invention.
According to the embodiment of the invention, by manufacturing the cutting starting datum and the cutting stopping datum of the datum cutting plate, all the plates in the same batch can adopt the cutting starting datum and the cutting stopping datum to determine the cutting starting point and the cutting ending point of the current plate to be cut, so that the cutting path is obtained. The problem of to the board limit cutting cross concave or cross protruding is solved, the realization can be treated the cutting board and carry out accurate edgewise cutting's effect.
Drawings
Fig. 1 is a flowchart of a method for edge cutting of a board separator according to an embodiment of the present invention;
fig. 2 is a schematic view of a board to be cut according to a first embodiment of the present invention;
FIG. 3 is a partial schematic view of a board to be cut according to an embodiment of the present invention;
FIG. 4 is a partial schematic view of a board to be cut according to an embodiment of the present invention;
FIG. 5 is a flowchart illustrating a method for edge cutting by a board separator according to a second embodiment of the present invention;
FIG. 6 is a diagram of a first image provided by a second embodiment of the present invention;
FIG. 7 is a flowchart illustrating a method for edge cutting by the board separator according to a second embodiment of the present invention;
fig. 8 is a flowchart of a method for edge cutting by a board separator according to a third embodiment of the present invention;
fig. 9 is a schematic structural diagram of an apparatus for edge cutting of a board separator according to a third embodiment of the present invention;
fig. 10 is a schematic structural diagram of a board separator according to a fifth embodiment of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.
Before discussing exemplary embodiments in more detail, it should be noted that some exemplary embodiments are described as processes or methods depicted as flowcharts. Although a flowchart may describe the steps as a sequential process, many of the steps can be performed in parallel, concurrently or simultaneously. In addition, the order of the steps may be rearranged. A process may be terminated when its operations are completed, but may have additional steps not included in the figure. A process may correspond to a method, a function, a procedure, a subroutine, a subprogram, etc.
Furthermore, the terms "first," "second," and the like may be used herein to describe various orientations, actions, steps, elements, or the like, but the orientations, actions, steps, or elements are not limited by these terms. These terms are only used to distinguish one direction, action, step or element from another direction, action, step or element. For example, the first image coordinates may be referred to as second image coordinates, and similarly, the second image coordinates may be referred to as first image coordinates, without departing from the scope of the present application. The first image coordinates and the second image coordinates are both image coordinates, but they are not the same image coordinates. The terms "first", "second", etc. are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "plurality", "batch" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
Example one
Fig. 1 is a flowchart of a method for edge-cutting by a board separator according to an embodiment of the present invention, where the embodiment is applicable to a scene in which a board to be cut is cut, and the method can be executed by the board separator, and specifically includes the following steps:
s110, obtaining a cutting starting reference and a cutting stopping reference of at least one first part to be cut of the reference cutting plate.
The reference cutting board is a board to be cut used as a cutting reference. In this embodiment, the board to be cut may be a printed circuit board PCB board or a PCB a board subjected to SMT mounting. Specifically, a plurality of boards to be cut are arranged in the same batch of boards to be cut, and one board to be cut is selected from the same batch of boards to be cut as a reference cutting board. The first part to be cut refers to a connecting part to be cut between the reference cutting plate and the other plates to be cut. Specifically, the plate to be cut has at least one first part to be cut, and the specific number needs to be determined according to the configuration of the batch of plates to be cut.
Referring to fig. 2, fig. 2 is a schematic view of a configuration of a board to be cut. Wherein the board to be cut of fig. 2 has a plurality of first portions to be cut. Specifically, the board to be cut has a plurality of processing boards 11 and fixing board edges 12 for subsequent processing, and the fixing board edges 12 enclose a closed shape. After the cutting, the processing board 11 is subjected to a subsequent processing, such as SMT, and the fixed board edge 12 becomes waste after the cutting. There are connecting portions 13 between the fixing plate edge 12 and the work plate 11 and between the work plate 11 and another work plate 11 for connection and fixing. The first portion to be cut is a part of the connecting portion 13, and reference can be made to fig. 3 in particular.
Fig. 3 is a partial schematic view of a board to be cut. FIG. 3 may be a portion of a finished panel, a connecting portion, and a portion of a securing panel edge; or may be a portion of a tooling plate, a connecting portion, and a portion of another tooling plate. Wherein the first portion to be cut 111 is shown in fig. 3. It is obvious that there is a connecting portion between the work plate and the edge of the fixing plate, or between the work plate and the work plate, and the first portion to be cut is one of the connecting portions.
The cutting starting standard refers to a starting standard for cutting the same batch of boards to be cut. The cutting stop reference refers to a stop reference for cutting the same batch of boards to be cut. Specifically, the cutting start reference and the cutting stop reference may be obtained in various ways, and are not limited herein. Optionally, the cutting start reference and the cutting stop reference are determined based on an actual board edge of the reference cutting board. Because the difference between the plates to be cut in the same batch is very little, the plates to be cut in the same batch can use the cutting starting reference and the cutting stopping reference.
Specifically, the cutting start reference and the cutting stop reference are both actual board edges that construct the reference cut board. And the actual plate edge of the reference cutting plate can be determined by utilizing an edge searching algorithm according to the line segment in the image. And generating an interested area required by edge searching so as to obtain the actual plate edge of the reference cutting plate. The actual plate edge may be a straight line, a circular arc, or other geometric figures, which is not limited herein.
And S120, acquiring a cutting starting point of a second part to be cut of the plate to be cut according to the cutting starting standard.
The board to be cut refers to the PCB board in the same batch as the reference cutting board. For example, the PCB boards of the same batch include A, B, C boards, and the board a is used as a reference cutting board to make a cutting reference, so the board to be cut may be the board a, or may be the board B or the board C. The second portion to be cut means an edge portion of the board to be cut adjacent to the connecting portion to be cut. The boards to be cut and the reference cutting board are PCB boards in a unified batch, so that the number of the second parts to be cut is consistent with that of the first parts to be cut. The cutting starting point refers to a starting point for cutting the second to-be-cut part, specifically, the cutting starting point may be a first circle center of a circle with the diameter of the cutter as the diameter and tangent to the edge of the to-be-cut plate, and the first circle center may be located at one side of the connecting part.
Specifically, when the board to be cut is replaced to cut, the position of the board to be cut placed on the board separator at each time may have a deviation, and therefore, the cutting start point of the second part to be cut of the current board to be cut needs to be determined again according to the cutting start reference. Referring to fig. 4, fig. 4 is a partial schematic view of a board to be cut. Fig. 4 is a part of the work plate 11, the connecting portion 13, and a part of the fixing plate edge 12. Wherein the second portion to be cut 112 is proximate to the edge of the tooling plate 11. As shown in fig. 4, it is apparent that the second portion to be cut has a width W. Specifically, since the board separator is edge-cut, the width W is actually the diameter of the blade diameter. Since this flat cut edge is to be obtained, edgewise means cutting along the edge of the work sheet 11 so that the edge of the work sheet 11 obtained after cutting is flat.
S130, acquiring a cutting end point of the second part to be cut of the plate to be cut according to the cutting stop reference.
The cutting end point refers to an end point of cutting the second to-be-cut part, specifically, the cutting end point may be a second circle center of a circle with the diameter of the cutter as the diameter and tangent to the edge of the to-be-cut plate, and the first circle center may be located on the other side of the connecting part. When the plate to be cut is replaced for cutting, the position of the plate to be cut placed on the plate dividing machine every time has deviation, so that the cutting end point of the second part to be cut of the current plate to be cut is determined again according to the cutting stop reference.
And S140, cutting the second part to be cut according to a cutting path formed by connecting the cutting starting point and the cutting end point.
Wherein, the cutting path refers to the path of the cutter cutting at the second cutting part. Specifically, the cutting start point and the cutting end point are determined by a connecting line.
According to the technical scheme of the embodiment of the invention, by manufacturing the cutting starting datum and the cutting stopping datum of the datum cutting plate, all the plates in the same batch can adopt the cutting starting datum and the cutting stopping datum to determine the cutting starting point and the cutting ending point of the current plate to be cut, so that the cutting path is obtained. Because the cutting starting point and the cutting end point are the circle centers of circles with the diameters of the knife edges being diameters and tangent to the plate edges of the plate to be cut, the plate edges of the plate to be cut can be cut along the cutting path. The problem of to the board limit cutting cross concave or cross protruding is solved, reached and to have treated the cutting board and carry out accurate edgewise cutting's technological effect, can cut off the connecting portion between benchmark cutting board and other boards of treating the cutting through this case method, guaranteed simultaneously that the board of treating the cutting is cut into the edge of finished product neat. In addition, only one reference cutting plate is needed to be selected to manufacture a cutting starting reference and a cutting stopping reference to serve as cutting references of plates in the same batch, and the cutting efficiency is greatly improved.
Example two
Fig. 5 is a flowchart of a method for edge cutting by a board separator according to a second embodiment of the present invention. The embodiment is further refined in the technical scheme and is suitable for scenes for cutting the board to be cut. The method can be executed by a board separator, and comprises the following steps:
s210, acquiring a first image of the reference cutting board.
Wherein the first image is an image of a reference cutting board acquired by a camera on the board separator. The first image includes at least one portion to be cut. Specifically, the first image may refer to fig. 6.
S220, selecting a first reference point and a second reference point on the edge of one side of the first part to be cut of the first image along the cutting path.
Here, the edge refers to an edge of the processed board in the first image. The first reference point and the second reference point refer to a part of the cutting start reference or the cutting stop reference. Specifically, if the side of the portion to be cut is on the side of the cutting start point, the first reference point and the second reference point are part of the cutting start reference. If the side of the portion to be cut is on the side of the cutting end point, the first reference point and the second reference point are part of the cutting start reference. Referring to fig. 6, a first reference point P1 and a second reference point P2 are selected. Specifically, a first reference point P1 and a second reference point P2 are taken at the edge of the work sheet in the first image.
And S230, acquiring a first image coordinate of the first reference point and a second image coordinate of the second reference point.
The first image coordinate refers to an image coordinate of the first reference point in the first image. The second image coordinates refer to image coordinates of the second reference point in the first image. Specifically, referring to fig. 6, the center portion of the first image has a first center point O. The origin of the image coordinate of the first central point can be defaulted, and then the first image coordinate and the second image coordinate are obtained through calculation according to the size of the pixel point in the first image.
And S240, obtaining a third image coordinate of the reference starting point or the reference ending point according to the first image coordinate and the second image coordinate.
The reference starting point is a part of the cutting starting datum, and the reference end point is a part of the cutting stopping datum. Specifically, the perpendicular distance between the reference starting point or the reference ending point and the connecting line of the first reference point P1 and the second reference point P2 is the radius of the tool diameter. Similarly, the coordinates of the third image can also be obtained by calculating the size of the pixel points in the first image.
Optionally, before this step, a first difference between the first reference point and the edge may be calculated; calculating a second difference between the second reference point and the edge; judging whether the first difference value and the second difference value meet a preset threshold value or not; if the first difference and the second difference satisfy the preset threshold; obtaining a third image coordinate of a reference starting point or a reference end point according to the first image coordinate and the second image coordinate; if the first difference and the second difference do not satisfy the preset threshold; the first reference point and the second reference point are selected again on the edge of one side in the first image. Specifically, the preset threshold is 3 pixel points, which is not limited herein.
Before the step, if the first difference and the second difference do not meet the preset threshold, the first reference point and the second reference point are reselected, and the accuracy of the edge cutting is further improved.
And S250, converting the first image coordinate into a first mechanical coordinate, converting the second image coordinate into a second mechanical coordinate, and converting the third image coordinate into a third mechanical coordinate.
Wherein, the mechanical coordinate refers to the coordinate on the board separator. Each board separator is provided with a fixed point before leaving the factory, and the fixed point can be returned to the point only by pressing back the zero point of the machine tool no matter how the board separator moves, so that the mechanical coordinate of a certain point on the board separator is unique. Specifically, taking the example of converting the first image coordinate into the first mechanical coordinate, the manner of converting the image coordinate into the mechanical coordinate is as follows:
and acquiring a fourth image coordinate and a fourth mechanical coordinate of the first central point. Wherein the fourth image coordinates may default to the origin of the image coordinates. The fourth mechanical coordinate may be determined by the position of the camera in the board separator. Pixel difference values of the fourth image coordinates and the first image coordinates are calculated. Obtaining the first mechanical coordinate based on the pixel difference value and the fourth mechanical coordinate. After the pixel difference value is obtained, the first mechanical coordinate can be obtained through conversion of the pixel difference value and the mechanical coordinate. Illustratively, it may be that one pixel value represents one mechanical coordinate difference.
And S260, taking the first mechanical coordinate, the second mechanical coordinate and the third mechanical coordinate as the cutting starting reference or the cutting stopping reference.
And if the first mechanical coordinate, the second mechanical coordinate and the third mechanical coordinate are the mechanical coordinates of the reference point on one side of the cutting starting point and the third mechanical coordinate is the mechanical coordinate of the reference starting point, the first mechanical coordinate, the second mechanical coordinate and the third mechanical coordinate are used as the cutting starting benchmark.
S270, acquiring a cutting starting point of a second part to be cut of the plate to be cut according to the cutting starting standard.
The board to be cut refers to the PCB board in the same batch as the reference cutting board. The cutting start point refers to a start point of cutting the second portion to be cut. Specifically, the cutting starting point may be a circle center of a circle having a diameter of a knife and tangent to the edge of the board to be cut.
S280, acquiring the cutting end point of the second part to be cut of the plate to be cut according to the cutting stop reference.
Wherein the cutting end point is an end point of cutting the second portion to be cut.
And S290, cutting the second part to be cut according to a cutting path formed by connecting the cutting starting point and the cutting end point.
Wherein, the cutting path refers to the path of the cutter cutting at the second cutting part. Specifically, the cutting start point and the cutting end point are determined by a connecting line.
Referring to fig. 7, specifically, step S240 includes:
and S241, acquiring the fitting trimming edge of the part to be cut according to the first image coordinate and the second image coordinate.
Wherein the fitting trimming refers to the board edge of the PCB board in the first image. Specifically, the fitting plate edge can be obtained through the first image coordinate and the second image coordinate through an edge searching algorithm. The edge-finding algorithm is the existing algorithm and is not described herein in detail.
And S242, obtaining a first circle center coordinate of a circle which takes the cutter diameter as the diameter and is tangent to the fitting trimming edge.
The first circle center coordinate refers to an image coordinate in the first image.
And S243, taking the first circle center coordinate as the third image coordinate.
Referring to fig. 8, specifically, step S270 specifically includes:
s271, acquiring a second image of the board to be cut, wherein the second image comprises a second central point.
The second image is an image of the reference cutting board acquired by the camera on the board separator. The portion to be cut is included in the second image. The second center point is at the center of the second image.
And S272, positioning the reference starting point at a second central point of the second image.
Wherein the reference starting point can be located at the center point of the second image by moving the camera on the board separator. Specifically, the heights of the board to be cut and the camera on the board separator are different and cannot be changed, so that the third mechanical coordinate and the fifth mechanical coordinate have the same coordinates. Illustratively, the third mechanical coordinate is (x, y, z1), the fifth mechanical coordinate is moved until the fifth mechanical coordinate is (x, y, z2), when the reference starting point is located at the second center point of the second image.
And S273, acquiring a sixth image coordinate of the first reference point and a seventh image coordinate of the second reference point based on the fifth image coordinate of the second center point.
The sixth image coordinate refers to the image coordinate of the first reference point in the second image. The seventh reference point refers to image coordinates of the second reference point in the second image. Since the image coordinates are each with the center of the image as the origin, the image coordinates of the first reference point and the second reference point may change even if the mechanical coordinates of the first reference point and the second reference point do not change. Specifically, a difference between the third mechanical coordinate and the first mechanical coordinate may be calculated, and a sixth image coordinate of the first reference point may be obtained from the fifth image coordinate. The seventh image coordinates can also be obtained in the same way.
And S274, obtaining an eighth image coordinate of the cutting starting point according to the sixth image coordinate and the seventh image coordinate.
The eighth image coordinate is an image coordinate of the cutting start point in the second image. Specifically, the method for obtaining the eighth image coordinate of the cutting start point according to the sixth image coordinate and the seventh image coordinate includes:
acquiring an interested area according to the sixth image coordinate and the seventh image coordinate and then identifying an actual plate edge; the region of interest refers to a region to be processed, which is delineated by the processed image in a manner of a square frame, a circle, an ellipse, an irregular polygon, and the like. The actual board edge refers to the board edge in the second image. Specifically, if the board to be cut moves relative to the reference cutting board, the board to be cut can be determined by the sixth image coordinate and the seventh image coordinate, and then an actual board edge is fitted, and the actual board edge is the board edge of the board to be cut in the second image. Acquiring a second circle center coordinate of a circle which takes the diameter of the cutter as the diameter and is tangent to the fitting trimming edge; and taking the second circle center coordinate as the eighth image coordinate of the cutting starting point or the cutting end point.
And S275, converting the eighth image coordinate into an eighth mechanical coordinate.
Specifically, the description of the other steps may be referred to as a manner of converting the eighth image coordinate into the eighth mechanical coordinate.
And S276, taking the eighth mechanical coordinate as the cutting starting point or the cutting end point.
In an alternative embodiment, the cleavage endpoint may be obtained by the above steps.
In another alternative embodiment, obtaining a cutting start reference and a cutting stop reference of at least one first portion to be cut of the reference cutting board comprises:
obtaining the drawing board edge of the drawing of the reference cutting board;
generating an interested area of an image required for edge finding based on an edge finding algorithm according to the drawing board edge;
determining actual plate edge coordinates according to the region of interest;
and taking the plate edge coordinates as the cutting starting reference and the cutting stopping reference.
Specifically, the drawing may be a CAD drawing. And manufacturing a standard reference cutting board in a CAD drawing, wherein the CAD drawing comprises two sections of board edges of a cutting starting point and a cutting end point. The plate edges can be straight lines, circular arcs or edges of other patterns. And generating an interested area of the image by an edge searching algorithm according to the edge of the drawing board. The region of interest is an image region selected from the image, which is the focus of your image analysis. The area is delineated for further processing. And performing image processing on the region of interest, calculating the actual plate edge coordinates, and taking the plate edge coordinates as a cutting starting reference and a cutting stopping reference.
Illustratively, if the panel edge is a straight line reference cut panel, the panel edge coordinates include a point coordinate on the panel edge on the side of the cut start point and a point coordinate on the panel edge on the side of the cut end point. If the plate edge is a circular arc, the plate edge coordinate is a point coordinate on the plate edge on the side of the cutting starting point, a point coordinate on the plate edge on the side of the cutting end point and a radius coordinate of the circular arc.
According to the technical scheme of the embodiment of the invention, by manufacturing the cutting starting datum and the cutting stopping datum of the datum cutting plate, all the plates in the same batch can adopt the cutting starting datum and the cutting stopping datum to determine the cutting starting point and the cutting ending point of the current plate to be cut, so that the cutting path is obtained. Because the cutting starting point and the cutting end point are the circle centers of circles with the diameters of the knife edges being diameters and tangent to the plate edges of the plate to be cut, the plate edges of the plate to be cut can be cut along the cutting path. The problem of to the board limit cutting cross concave or cross protruding is solved, the technical effect that can treat the cutting board and carry out accurate edgewise cutting has been reached. In addition, only one reference cutting plate is needed to be selected to manufacture a cutting starting reference and a cutting stopping reference to serve as cutting references of plates in the same batch, and the cutting efficiency is greatly improved.
EXAMPLE III
Fig. 9 is a schematic structural diagram of a device for edge cutting by a board separator according to a third embodiment of the present invention, where this embodiment is applicable to a scene of cutting a board to be cut, and the device may be implemented in a software and/or hardware manner and may be integrated on the board separator.
As shown in fig. 9, the apparatus for edge cutting of a board separator provided in this embodiment may include an obtaining module 310 and a cutting module 320, where:
the obtaining module 310 is configured to obtain a cutting start reference and a cutting stop reference of at least one first portion to be cut of the reference cutting board;
acquiring a cutting starting point of a second part to be cut of the plate to be cut according to the cutting starting reference;
acquiring a cutting end point of a second part to be cut of the board to be cut according to the cutting stop reference;
the cutting module 320 is configured to cut the second portion to be cut according to a cutting path formed by connecting the cutting start point and the cutting end point.
Optionally, the cutting start reference and the cutting stop reference are determined based on an actual board edge of the reference cutting board.
Optionally, the obtaining module 310 is specifically configured to obtain a first image of the reference cutting board;
selecting a first reference point and a second reference point on an edge of one side of a first part to be cut of the first image along a cutting path;
acquiring a first image coordinate of the first reference point and a second image coordinate of the second reference point;
obtaining a third image coordinate of a reference starting point or a reference end point according to the first image coordinate and the second image coordinate;
converting the first image coordinate into a first mechanical coordinate, converting the second image coordinate into a second mechanical coordinate, and converting the third image coordinate into a third mechanical coordinate;
and taking the first mechanical coordinate, the second mechanical coordinate and the third mechanical coordinate as the cutting starting reference or the cutting stopping reference.
Optionally, the obtaining module 310 includes a fitting unit, configured to obtain a fitting cut edge of the portion to be cut according to the first image coordinate and the second image coordinate;
the obtaining unit is used for obtaining a first circle center coordinate of a circle which takes the diameter of the cutter as the diameter and is tangent to the fitting trimming edge;
and taking the first circle center coordinate as the third image coordinate.
Optionally, the obtaining module 310 is further configured to obtain a fourth image coordinate and a fourth mechanical coordinate of the first central point;
calculating pixel difference values of the fourth image coordinates and the first image coordinates;
obtaining the first mechanical coordinate based on the pixel difference value and the fourth mechanical coordinate.
Optionally, the obtaining module 310 is further specifically configured to obtain a second image of the board to be cut, where the second image includes a second central point;
setting the reference starting point or the reference end point at a second central point of the second image;
acquiring a sixth image coordinate of the first reference point and a seventh image coordinate of the second reference point based on the fifth image coordinate of the second center point;
obtaining an eighth image coordinate of the cutting starting point or the cutting end point according to the sixth image coordinate and the seventh image coordinate;
converting the eighth image coordinate to an eighth mechanical coordinate;
and taking the eighth mechanical coordinate as the cutting starting point or the cutting end point.
Optionally, the obtaining module 310 further includes an identifying unit, configured to identify an actual plate edge after obtaining the region of interest according to the sixth image coordinate and the seventh image coordinate;
acquiring a second circle center coordinate of a circle which takes the diameter of the cutter as the diameter and is tangent to the fitting trimming edge;
and taking the second circle center coordinate as the eighth image coordinate of the cutting starting point or the cutting end point.
Optionally, the obtaining module 310 further includes a calculating unit, configured to calculate a first difference between the first reference point and the edge;
calculating a second difference between the second reference point and the edge;
judging whether the first difference value and the second difference value meet a preset threshold value or not;
if the first difference and the second difference satisfy the preset threshold; obtaining a third image coordinate of a reference starting point or a reference end point according to the first image coordinate and the second image coordinate;
if the first difference and the second difference do not satisfy the preset threshold; the first reference point and the second reference point are selected again on the edge of one side in the first image.
Optionally, the obtaining module may be further configured to obtain a drawing board edge of the drawing of the reference cutting board; the device also comprises an image processing module, a processing module and a processing module, wherein the image processing module is used for generating an interested area of an image required by edge searching based on an edge searching algorithm according to the drawing board edge;
determining actual plate edge coordinates according to the region of interest;
and taking the plate edge coordinates as the cutting starting reference and the cutting stopping reference.
The device for cutting the edge of the board separator provided by the embodiment of the invention can execute the method for cutting the edge of the board separator provided by any embodiment of the invention, and has corresponding functional modules and beneficial effects of the execution method. Reference may be made to the description of any method embodiment of the invention not specifically described in this embodiment.
Example four
A fourth embodiment of the present invention further provides a computer-readable storage medium, on which a computer program is stored, where the computer program, when executed by a processor, implements a method for edge cutting of a board separator according to any embodiment of the present invention, where the method may include:
obtaining a cutting starting reference and a cutting stopping reference of at least one first part to be cut of the reference cutting plate;
acquiring a cutting starting point of a second part to be cut of the plate to be cut according to the cutting starting reference;
acquiring a cutting end point of a second part to be cut of the board to be cut according to the cutting stop reference;
and cutting the second part to be cut according to a cutting path formed by connecting the cutting starting point and the cutting end point.
The computer-readable storage media of embodiments of the invention may take any combination of one or more computer-readable media. The computer readable medium may be a computer readable signal medium or a computer readable storage medium. A computer readable storage medium may be, for example, but not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any combination of the foregoing. More specific examples (a non-exhaustive list) of the computer readable storage medium would include the following: an electrical connection having one or more wires, a portable computer diskette, a hard disk, a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disc read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing. In the context of this document, a computer readable storage medium may be any tangible medium that can contain, or store a program for use by or in connection with an instruction execution system, apparatus, or device.
A computer readable signal medium may include a propagated data signal with computer readable program code embodied therein, for example, in baseband or as part of a carrier wave. Such a propagated data signal may take many forms, including, but not limited to, electro-magnetic, optical, or any suitable combination thereof. A computer readable signal medium may also be any computer readable medium that is not a computer readable storage medium and that can communicate, propagate, or transport a program for use by or in connection with an instruction execution system, apparatus, or device.
Program code embodied on a storage medium may be transmitted using any appropriate medium, including but not limited to wireless, wireline, optical fiber cable, RF, etc., or any suitable combination of the foregoing.
Computer program code for carrying out operations for aspects of the present invention may be written in any combination of one or more programming languages, including an object oriented programming language such as Java, Smalltalk, C + + or the like and conventional procedural programming languages, such as the "C" programming language or similar programming languages. The program code may execute entirely on the user's computer, partly on the user's computer, as a stand-alone software package, partly on the user's computer and partly on a remote computer or entirely on the remote computer or terminal. In the case of a remote computer, the remote computer may be connected to the user's computer through any type of network, including a Local Area Network (LAN) or a Wide Area Network (WAN), or the connection may be made to an external computer (for example, through the Internet using an Internet service provider).
According to the technical scheme of the embodiment of the invention, by manufacturing the cutting starting datum and the cutting stopping datum of the datum cutting plate, all the plates in the same batch can adopt the cutting starting datum and the cutting stopping datum to determine the cutting starting point and the cutting ending point of the current plate to be cut, so that the cutting path is obtained. Because the cutting starting point and the cutting end point are the circle centers of circles with the diameters of the knife edges being diameters and tangent to the plate edges of the plate to be cut, the plate edges of the plate to be cut can be cut along the cutting path. The problem of to the board limit cutting cross concave or cross protruding is solved, the technical effect that can treat the cutting board and carry out accurate edgewise cutting has been reached. In addition, only one reference cutting plate is needed to be selected to manufacture a cutting starting reference and a cutting stopping reference to serve as cutting references of plates in the same batch, and the cutting efficiency is greatly improved.
EXAMPLE five
Fig. 10 is a schematic structural diagram of a board separator according to a fifth embodiment of the present invention. Fig. 10 illustrates a block diagram of an exemplary board separator 612, suitable for use in implementing embodiments of the present invention. The board separator 612 shown in fig. 10 is only an example, and should not bring any limitation to the function and the scope of the application of the embodiment of the present invention.
As shown in fig. 10, the board separator 612 is in the form of a general-purpose board separator. The components of the board separator 612 may include, but are not limited to: one or more processors 616, a memory device 628, and a bus 618 that couples the various system components including the memory device 628 and the processors 616.
The board separator 612 typically includes a variety of computer system readable media. Such media can be any available media that can be accessed by the board separator 612 and includes both volatile and nonvolatile media, removable and non-removable media.
A program/utility 640 having a set (at least one) of program modules 642 may be stored, for example, in storage 628, such program modules 642 including, but not limited to, an operating system, one or more application programs, other program modules, and program data, each of which examples or some combination thereof may comprise an implementation of a network environment. The program modules 642 generally perform the functions and/or methods of the described embodiments of the present invention.
The board separator 612 may also communicate with one or more external devices 614 (e.g., keyboard, pointing terminal, display 624, etc.), with one or more terminals that enable a user to interact with the board separator 612, and/or with any terminals (e.g., network card, modem, etc.) that enable the board separator 612 to communicate with one or more other computing terminals. Such communication may occur via input/output (I/O) interfaces 622. Moreover, the board separator 612 can also communicate with one or more networks (e.g., a Local Area Network (LAN), a Wide Area Network (WAN), and/or a public Network such as the internet) via the Network adapter 620. As shown in fig. 10, the network adapter 620 communicates with the other modules of the board separator 612 via the bus 618. It should be appreciated that although not shown, other hardware and/or software modules may be used in conjunction with the board separator 612, including but not limited to: microcode, end drives, Redundant processors, external disk drive Arrays, RAID (Redundant Arrays of Independent Disks) systems, tape drives, and data backup storage systems, among others.
The processor 616 executes programs stored in the storage device 628, so as to execute various functional applications and data processing, for example, implement a method for board separator edge cutting provided by any embodiment of the present invention, where the method may include:
obtaining a cutting starting reference and a cutting stopping reference of at least one first part to be cut of the reference cutting plate;
acquiring a cutting starting point of a second part to be cut of the plate to be cut according to the cutting starting reference;
acquiring a cutting end point of a second part to be cut of the board to be cut according to the cutting stop reference;
and cutting the second part to be cut according to a cutting path formed by connecting the cutting starting point and the cutting end point.
According to the technical scheme of the embodiment of the invention, by manufacturing the cutting starting datum and the cutting stopping datum of the datum cutting plate, all the plates in the same batch can adopt the cutting starting datum and the cutting stopping datum to determine the cutting starting point and the cutting ending point of the current plate to be cut, so that the cutting path is obtained. Because the cutting starting point and the cutting end point are the circle centers of circles with the diameters of the knife edges being diameters and tangent to the plate edges of the plate to be cut, the plate edges of the plate to be cut can be cut along the cutting path. The problem of to the board limit cutting cross concave or cross protruding is solved, the technical effect that can treat the cutting board and carry out accurate edgewise cutting has been reached. In addition, only one reference cutting plate is needed to be selected to manufacture a cutting starting reference and a cutting stopping reference to serve as cutting references of plates in the same batch, and the cutting efficiency is greatly improved.
It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present invention and the technical principles employed. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.
Claims (10)
1. A method for cutting along edges of a plate separator is characterized by comprising the following steps:
obtaining a cutting starting reference and a cutting stopping reference of at least one first part to be cut of the reference cutting plate;
acquiring a cutting starting point of a second part to be cut of the plate to be cut according to the cutting starting reference;
acquiring a cutting end point of a second part to be cut of the board to be cut according to the cutting stop reference;
cutting the second part to be cut according to a cutting path formed by connecting the cutting starting point and the cutting end point;
the cutting start datum and the cutting stop datum are determined based on actual board edges of the datum cutting board;
the obtaining of the cutting start reference and the cutting stop reference of the at least one first portion to be cut of the reference cutting board includes:
acquiring a first image of the reference cutting board;
selecting a first reference point and a second reference point on an edge of one side of a first part to be cut of the first image along a cutting path;
acquiring a first image coordinate of the first reference point and a second image coordinate of the second reference point;
obtaining a third image coordinate of a reference starting point or a reference end point according to the first image coordinate and the second image coordinate;
converting the first image coordinate into a first mechanical coordinate, converting the second image coordinate into a second mechanical coordinate, and converting the third image coordinate into a third mechanical coordinate;
and taking the first mechanical coordinate, the second mechanical coordinate and the third mechanical coordinate as the cutting starting reference or the cutting stopping reference.
2. The method for cutting along the edge of the board separator according to claim 1, wherein the obtaining of the third image coordinate of the reference starting point or the reference end point according to the first image coordinate and the second image coordinate comprises:
acquiring a fitting trimming edge of the part to be cut according to the first image coordinate and the second image coordinate;
acquiring a first circle center coordinate of a circle which takes the diameter of the cutter as the diameter and is tangent to the fitting trimming edge;
and taking the first circle center coordinate as the third image coordinate.
3. The method of board separator edgewise cutting as defined in claim 1, wherein the first image includes a first center point, the converting the first image coordinates to first mechanical coordinates comprising:
acquiring a fourth image coordinate and a fourth mechanical coordinate of the first central point;
calculating pixel difference values of the fourth image coordinates and the first image coordinates;
obtaining the first mechanical coordinate based on the pixel difference value and the fourth mechanical coordinate.
4. The method for cutting along the edge of the board separator according to claim 1, wherein the obtaining of the cutting start point of the second portion to be cut of the board to be cut according to the cutting start reference or the obtaining of the cutting end point of the second portion to be cut of the board to be cut according to the cutting stop reference comprises:
acquiring a second image of the board to be cut, wherein the second image comprises a second central point;
setting the reference starting point or the reference end point at a second central point of the second image;
acquiring a sixth image coordinate of the first reference point and a seventh image coordinate of the second reference point based on the fifth image coordinate of the second center point;
obtaining an eighth image coordinate of the cutting starting point or the cutting end point according to the sixth image coordinate and the seventh image coordinate;
converting the eighth image coordinate to an eighth mechanical coordinate;
and taking the eighth mechanical coordinate as the cutting starting point or the cutting end point.
5. The method for cutting along the edge of the board separator according to claim 4, wherein the obtaining of the eighth image coordinate of the cutting start point or the cutting end point according to the sixth image coordinate and the seventh image coordinate comprises:
acquiring an interested area according to the sixth image coordinate and the seventh image coordinate and then identifying an actual plate edge;
acquiring a second circle center coordinate of a circle which takes the diameter of the cutter as the diameter and is tangent with the identified actual plate edge;
and taking the second circle center coordinate as the eighth image coordinate of the cutting starting point or the cutting end point.
6. The method for board separator edgewise cutting according to claim 1, characterized in that before said deriving a third image coordinate of a reference start point or a reference end point from said first image coordinate and said second image coordinate, it comprises:
calculating a first difference between the first reference point and the edge;
calculating a second difference between the second reference point and the edge;
judging whether the first difference value and the second difference value meet a preset threshold value or not;
if the first difference and the second difference satisfy the preset threshold; obtaining a third image coordinate of a reference starting point or a reference end point according to the first image coordinate and the second image coordinate;
if the first difference and the second difference do not satisfy the preset threshold; the first reference point and the second reference point are selected again on the edge of one side in the first image.
7. The method for cutting along the edge of the board separator according to claim 1, wherein the obtaining of the cutting start reference and the cutting stop reference of the at least one first part to be cut of the reference cutting board comprises:
obtaining the drawing board edge of the drawing of the reference cutting board;
generating an interested area of an image required for edge finding based on an edge finding algorithm according to the drawing board edge;
determining actual plate edge coordinates according to the region of interest;
and taking the plate edge coordinates as the cutting starting reference and the cutting stopping reference.
8. An apparatus for edge cutting of a board separator, comprising:
the acquisition module is used for acquiring a cutting starting reference and a cutting stopping reference of at least one first part to be cut of the reference cutting plate;
acquiring a cutting starting point of a second part to be cut of the plate to be cut according to the cutting starting reference;
acquiring a cutting end point of a second part to be cut of the board to be cut according to the cutting stop reference;
the cutting module is used for cutting the second part to be cut according to a cutting path formed by connecting the cutting starting point and the cutting end point; the cutting start datum and the cutting stop datum are determined based on actual board edges of the datum cutting board;
the acquiring module is specifically further configured to acquire a first image of the reference cutting board;
selecting a first reference point and a second reference point on an edge of one side of a first part to be cut of the first image along a cutting path;
acquiring a first image coordinate of the first reference point and a second image coordinate of the second reference point;
obtaining a third image coordinate of a reference starting point or a reference end point according to the first image coordinate and the second image coordinate;
converting the first image coordinate into a first mechanical coordinate, converting the second image coordinate into a second mechanical coordinate, and converting the third image coordinate into a third mechanical coordinate;
and taking the first mechanical coordinate, the second mechanical coordinate and the third mechanical coordinate as the cutting starting reference or the cutting stopping reference.
9. A computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, carries out a method of edge-cutting of a board separator according to any one of claims 1-7.
10. A board separator, comprising:
one or more processors;
storage means for storing one or more programs;
when executed by the one or more processors, cause the one or more processors to implement a method of board separator edgewise cutting as claimed in any one of claims 1-7.
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| CN114245576A (en) * | 2021-11-17 | 2022-03-25 | 南京晟通信息技术有限公司 | Mark point pair-based track correction method for PCB splitting program |
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