TW202122744A - Thickness measuring method and system of PCB capable of improving the degree of precision for subsequent drillings by conducting thickness measurements on multiple locations of the PCB - Google Patents
Thickness measuring method and system of PCB capable of improving the degree of precision for subsequent drillings by conducting thickness measurements on multiple locations of the PCB Download PDFInfo
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Abstract
Description
本發明是有關於一種量測方法,特別是指一種電路板的厚度量測方法,及一種厚度量測系統。The invention relates to a measuring method, in particular to a method for measuring the thickness of a circuit board, and a thickness measuring system.
目前用於與數個電子元件的支腳焊接的印刷電路板,通常包括一絕緣板材,及一以金屬為製成材料並形成於該絕緣板材表面或該絕緣板材中的電路層。該印刷電路板在與該等電子元件焊接之前,需要先量測該印刷電路板的厚度,再依據所量測的厚度,於一鑽孔裝置上設定合適的控制參數後,再利用該鑽孔裝置於該印刷電路板鑽設數個後續供該等支腳能穿設的貫孔,使該等電子元件能與該印刷電路板焊接。The printed circuit boards currently used for soldering with the legs of several electronic components usually include an insulating plate and a circuit layer made of metal and formed on the surface of the insulating plate or in the insulating plate. Before the printed circuit board is soldered with the electronic components, the thickness of the printed circuit board needs to be measured, and then appropriate control parameters are set on a drilling device according to the measured thickness, and then the drilling is used The device drills a plurality of through holes in the printed circuit board for the supporting legs to pass through, so that the electronic components can be welded with the printed circuit board.
然而,由於該印刷電路板的電路層並非整面性地形成於該絕緣板材,而是依據所需的電路設計佈線於該絕緣板材;因此,該印刷電路板在微觀尺寸上,不同區域的厚度會有些微的差異,導致利用該鑽孔裝置所形成的所述貫孔的精確度不佳。However, since the circuit layer of the printed circuit board is not formed on the insulating plate over the entire surface, it is wired on the insulating plate according to the required circuit design; therefore, the printed circuit board has different thicknesses in different areas in terms of microscopic dimensions. There will be some slight differences, resulting in poor accuracy of the through holes formed by the drilling device.
因此,本發明之其中一目的,即在提供一種至少能夠克服先前技術的缺點的電路板的厚度量測方法。Therefore, one of the objectives of the present invention is to provide a circuit board thickness measurement method that can at least overcome the disadvantages of the prior art.
於是,本發明電路板的厚度量測方法,包含:利用一攝像裝置,提供一待鑽孔的電路板,並取得該電路板的電路板圖像;利用一影像處理裝置,提供一待鑽孔模擬圖像,該待鑽孔模擬圖像佈設有一孔位設計圖案;利用該影像處理裝置,將該待鑽孔模擬圖像對應至該電路板圖像;利用該影像處理裝置,依據該待鑽孔模擬圖像的該孔位設計圖案,將該待鑽孔模擬圖像區分為多個待測模擬區,並依據該等待測模擬區,將該電路板圖像區分為多個待測區;及利用一厚度量測裝置,依據該電路板圖像的該等待測區,對該電路板進行厚度量測。Therefore, the method for measuring the thickness of a circuit board of the present invention includes: using a camera device to provide a circuit board to be drilled, and obtaining a circuit board image of the circuit board; using an image processing device to provide a circuit board to be drilled A simulation image, the simulation image to be drilled is arranged with a hole design pattern; the image processing device is used to correspond the simulation image to be drilled to the circuit board image; the image processing device is used according to the to be drilled According to the hole position design pattern of the hole simulation image, the simulation image to be drilled is divided into multiple simulation areas to be tested, and the circuit board image is divided into multiple simulation areas to be tested according to the simulation area waiting to be tested; And using a thickness measuring device to measure the thickness of the circuit board according to the waiting area of the circuit board image.
因此,本發明之另一目的,即在提供一種至少能夠克服先前技術的缺點的用於量測電路板的厚度量測系統,該厚度量測系統用以進行上述之電路板的厚度量測方法。Therefore, another object of the present invention is to provide a thickness measurement system for measuring circuit boards that can at least overcome the disadvantages of the prior art, and the thickness measurement system is used to perform the above-mentioned circuit board thickness measurement method .
本發明之功效在於:利用該欲鑽孔模擬圖像區分為該等待測模擬區域的設計,量測該電路板對應該等待測區的位置的厚度,以獲得該電路板在對應該等待測區的多個厚度值,有效提升後續鑽孔的精確程度。The effect of the present invention is to use the design of the simulated image to be drilled to be divided into the waiting-for-measurement simulation area to measure the thickness of the circuit board at the position of the waiting-for-measurement area, so as to obtain that the circuit board is in the waiting-for-measurement area. The multiple thickness values of, effectively improve the accuracy of subsequent drilling.
在本發明被詳細描述之前,應當注意在以下的說明內容中,類似的元件是以相同的編號來表示。Before the present invention is described in detail, it should be noted that in the following description, similar elements are denoted by the same numbers.
參閱圖1與圖3,本發明一用於量測一待鑽孔的電路板1的厚度量測系統2的一實施例,適用於進行該電路板1的厚度量測。Referring to FIGS. 1 and 3, an embodiment of the thickness measurement system 2 for measuring a circuit board 1 to be drilled according to the present invention is suitable for measuring the thickness of the circuit board 1.
該厚度量測系統2設有一個用以使該電路板1位於一預定位置固定夾持並用以拍攝以取得該電路板1的電路板圖像3的攝像裝置21、一與該攝像裝置21訊號連接且用以提供一模擬影像並用以處理數個影像的影像處理裝置22,及一與該影像處理裝置22訊號連接並用以量測該電路板1的預定位置之厚度的厚度量測裝置23。The thickness measurement system 2 is provided with a
該攝像裝置21設有一具有一用於夾持並固定該電路板1的夾持器211,及一位於該夾持器211上方並用於拍攝該電路板1的攝像器212。該影像處理裝置22設有一用於對影像資料進行分析、加工與運算(例如:降噪、影像融合、影像編輯……等)的處理器221,及一用於顯示所述影像的顯示單元222。該厚度量測裝置23與該影像處理裝置22訊號連接,並用於依據該影像處理裝置22所處理的影像資料,量測該電路板1的預定位置的厚度。於本實施例中,該顯示單元222為一顯示器;該厚度量測裝置23為一設置於該電路板1之二相反面的例如光學測距器的非接觸式測距器。The
於本實施例的其他變化態樣中,該厚度量測裝置23為一設置於該電路板1之二相反面的例如伸縮探針的接觸式測距器。In other variations of this embodiment, the thickness measuring
參閱圖1與圖2,本發明利用該厚度量測系統以進行該電路板1的厚度量測方法的一實施例,如下說明:1 and FIG. 2, the present invention uses the thickness measurement system to perform an embodiment of the thickness measurement method of the circuit board 1, as described below:
參閱圖3至圖5,利用該攝像裝置21的夾持器211,使一待鑽孔的電路板1在該預定位置被定位夾持,並利用該攝像裝置21的攝像器212,拍攝該電路板1,以取得該電路板1的電路板圖像3,再使該電路板圖像3傳送並儲存於該影像處理裝置22。該電路板1呈長方形,且具有一正面11,及三個位於該正面11的其中三個角落且分別呈「十」字圖案的實體標記12,並設有一絕緣板材13,及一由金屬材料製成並形成於該絕緣板材13表面,及/或該絕緣板材13中的電路佈線層(圖未示出)。藉由該電路板1之所述實體標記12的設計,該電路板圖像3也具有三個分別對應該等實體標記12的標記圖像31。Referring to FIGS. 3 to 5, the
參閱圖1、圖3、圖5,利用該影像處理裝置22的處理器221,提供一待鑽孔模擬圖像4,並顯示於該影像處理裝置22的顯示單元222。該待鑽孔模擬圖像4具有一圍繞成一長方形的邊界41,及三個位於該邊界41內的模擬標記42,並佈設有一具有多個模擬孔位431的孔位設計圖案43。該孔位設計圖案43的模擬孔位431是模擬該電路板1後續欲鑽孔的相對位置,且該待鑽孔模擬圖像4的尺寸可在縮小或放大一預定比例之後,與該電路板1上欲鑽孔的位置符合。於本實施例中,該等模擬孔位431為不均勻分佈;例如,該等模擬孔位431的其中一部分呈疏密不均之不規則的分布,另一部分則排列為單排或多排。每一模擬孔位431的形狀與尺寸不限制為一致,而能為圓形、楕圓形、多邊形……等。1, 3, and 5, the
需說明的是,也可先提供該待鑽孔模擬圖像4,再取得該電路板圖像3;或同時提供該待鑽孔模擬圖像4與取得該電路板圖像3。It should be noted that the
而後,利用該影像處理裝置22,使該等模擬標記42分別對應該等標記圖像31,而將該待鑽孔模擬圖像4與該電路板圖像3對應。具體地,該電路板圖像3與該待鑽孔模擬圖像4顯示於該影像處理裝置22的該顯示單元222;並利用該處理器221,使該待鑽孔模擬圖像4放大或縮小一預定比例之後,使該待鑽孔模擬圖像4的該等模擬標記42與該電路板圖像3的該等標記圖像31分別重疊,並使該待鑽孔模擬圖像4的邊界41對應該電路板圖像3的輪廓32,使得該待鑽孔模擬圖像4對應至該電路板圖像3,而完成該待鑽孔模擬圖像4與該電路板圖像3的對位,且在該顯示單元222顯示出該電路板圖像3與該待鑽孔模擬圖像4的對位過程。Then, the
參閱圖1、圖6,接著,利用該影像處理裝置22,依據該待鑽孔模擬圖像4的該孔位設計圖案43,使該待鑽孔模擬圖像4區分為多個供該等模擬孔位431分佈的待測模擬區432,並依據該等待測模擬區432,使該電路板圖像3區分為多個待測區33。具體地,利用該處理器221,使該待鑽孔模擬圖像4的邊界41所圈圍出的區域劃分為呈矩陣形式排列的該等待測模擬區432;參閱圖1、圖7、圖8,再利用該處理器221,使每一待測模擬區432形成有一依據該待測模擬區432內的模擬孔位431的分佈情況來決定的待測模擬點433後,再使該電路板圖像3的所述待測區33形成有多個分別對應該等待測模擬點433的待測點331。因此,該電路板圖像3的每一待測區33形成所述該待測點331,且該等待測區33的待測點331分別對應該等待測模擬區432的待測模擬點433。Referring to Figures 1 and 6, then, using the
參閱圖6至圖8,具體而言,每一待測模擬區432的待測模擬點433的位置即為該待測模擬區432內的所述模擬孔位431的一重心。以座標的形式來說明,在界定該待鑽孔模擬圖像4之邊界41的左下角落的座標為(0,0)的情況下,每一模擬孔位431的位置都可以座標表示,當第m個待測模擬區432中的模擬孔位431的數量為n個時,m為正整數,n為不小於0的整數;其中,在第m個待測模擬區432中,第i個模擬孔位431的位置以座標(xmi,ymi)表示,第i個模擬孔位431的面積為Ami平方單位,0>i≦n,則第m個待測模擬區432的該重心(也就是該待測模擬點433)具有一座標(Xm,Ym),該座標(Xm,Ym)的計算方式為:。因此,第1個待測模擬區432的待測模擬點433的座標 (X1,Y1)=(),第2個待測模擬區432的待測模擬點433的座標(X2,Y2)=(),第3個待測模擬區432的待測模擬點433的座標(X3,Y3)=(),以此類推至最後一個待測模擬區432的待測模擬點433。Referring to FIGS. 6 to 8, specifically, the position of the simulated point to be tested 433 of each simulated area to be tested 432 is a center of gravity of the simulated
參閱圖1、圖7,需說明的是,在本實施例的其他變化態樣中,也能先利用該影像處理裝置22的該處理器221取得該等待測模擬區432的待測模擬點433之後,再使該待鑽孔模擬圖像4與該電路板圖像3對應,使該電路板圖像3對應形成有對應該等測測模擬點的待測點331。Referring to FIGS. 1 and 7, it should be noted that in other variations of this embodiment, the
參閱圖1、圖7、圖9,最後,利用該影像處理裝置22與該厚度量測裝置23,依據該電路板圖像3的該等待測區33,對該電路板1進行厚度量測。具體地,該厚度量測裝置23依據該等待測點331,對該電路板1之對應該等待測點331的位置進行厚度量測。該厚度量測裝置23為設置於該電路板1二相反面之該非接觸式測距器。Referring to FIGS. 1, 7, and 9, finally, the
參閱圖10,於本實施例的其他變化態樣中,是利用該接觸式測距器作為該厚度量測裝置23,量測該電路板1的厚度。Referring to FIG. 10, in another variation of this embodiment, the contact type distance meter is used as the thickness measuring
綜上所述,本發明厚度量測方法,利用該欲鑽孔模擬圖像的該等待測模擬區432域的設計,量測該電路板1之多個分別對應該等待測點331的位置的厚度,以獲得該電路板1之各個區域之相對精確的厚度值,有效提升後續鑽孔的精確程度,故確實能達成本發明之目的。In summary, the thickness measurement method of the present invention utilizes the design of the waiting-for-
惟以上所述者,僅為本發明之實施例而已,當不能以此限定本發明實施之範圍,凡是依本發明申請專利範圍及專利說明書內容所作之簡單的等效變化與修飾,皆仍屬本發明專利涵蓋之範圍內。However, the above are only examples of the present invention. When the scope of implementation of the present invention cannot be limited by this, all simple equivalent changes and modifications made in accordance with the scope of the patent application of the present invention and the content of the patent specification still belong to This invention patent covers the scope.
1:電路板 11:正面 12:實體標記 13:絕緣板材 2:厚度量測系統 21:攝像裝置 211:夾持器 212:攝像器 22:影像處理裝置 221:處理器 222:顯示器 23:厚度量測裝置 3:電路板圖像 31:標記圖像 32:輪廓 33:待測區 331:待測點 4:待鑽孔模擬圖像 41:邊界 42:模擬標記 43:孔位設計圖案 431:模擬孔位 432:待測模擬區 433:待測模擬點1: circuit board 11: front 12: Entity Marking 13: Insulating sheet 2: Thickness measurement system 21: camera device 211: gripper 212: Camera 22: Image processing device 221: processor 222: display 23: Thickness measuring device 3: Circuit board image 31: Mark the image 32: Contour 33: Area to be tested 331: point to be measured 4: Simulation image to be drilled 41: Border 42: analog mark 43: Hole design pattern 431: Simulated hole position 432: Simulation area to be tested 433: Analog point to be tested
本發明之其他的特徵及功效,將於參照圖式的實施方式中清楚地呈現,其中: 圖1是一示意圖,說明本發明一厚度量測系統; 圖2是一流程圖,說明本發明一電路板的厚度量測方法的一實施例; 圖3是一俯視示意圖,說明一待鑽孔的電路板; 圖4是一側視示意圖,說明利用一攝像器,取得該電路板的一電路板圖像; 圖5是一示意圖,說明一待鑽孔模擬圖像與該電路板圖像對應; 圖6是一示意圖,說明該待鑽孔模擬圖像區分為多個待測模擬區; 圖7是一示意圖,說明該等待測模擬區的其中一個; 圖8是一示意圖,說明該等待測模擬區的其中另一個; 圖9是一側視示意圖,說明利用一非接觸式測距器量測該電路板的厚度;及 圖10是一側視示意圖,說明利用一接觸式測距器量測該電路板的厚度。Other features and effects of the present invention will be clearly presented in the embodiments with reference to the drawings, in which: Figure 1 is a schematic diagram illustrating a thickness measurement system of the present invention; 2 is a flowchart illustrating an embodiment of a method for measuring the thickness of a circuit board of the present invention; Figure 3 is a schematic top view illustrating a circuit board to be drilled; 4 is a schematic side view illustrating the use of a camera to obtain a circuit board image of the circuit board; FIG. 5 is a schematic diagram illustrating that a simulated image to be drilled corresponds to the image of the circuit board; Fig. 6 is a schematic diagram illustrating that the simulation image to be drilled is divided into multiple simulation areas to be tested; Figure 7 is a schematic diagram illustrating one of the waiting test simulation areas; Figure 8 is a schematic diagram illustrating another of the waiting test simulation areas; Figure 9 is a schematic side view illustrating the use of a non-contact distance measuring device to measure the thickness of the circuit board; and FIG. 10 is a schematic side view illustrating the use of a contact type distance measuring device to measure the thickness of the circuit board.
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