TW200948248A - Method of drilling holes in a printed circuit board for a drilling machine - Google Patents

Abstract

A method of drilling holes in a printed circuit board for a drilling machine obtains respectively a set of setting coordinate values and a set of image coordinate values. An X extension ratio and a Y extension ration are calculated with the setting coordinate values and the image coordinate values. A new constant term is obtained by a linear equation wherein the constant terms of the linear equation plus respectively the X extension ratio and the Y extension ratio equal to the new constant terms. The new constant terms with inverse calculations provides a set of target coordinate values. After the target coordinate values are provided, the coordinate value difference between the center points of the setting coordinate values and the image coordinate values is obtained so as to add the target coordinate values with the coordinate value difference to obtain a set of new target coordinate values. The new target coordinate values are transmitted to a drilling machine so that the drilling device of the drilling machine can drill holes in the printed circuit board at positions in accordance with the new target coordinate values.

Description

200948248 IX. Description of the Invention: [Technical Field] The present invention relates to the field of drilling target machines for printed circuit boards, and in particular to a method for drilling a target hole of a printed circuit board. Technology] Printed circuit board (PCB) is one of the indispensable components in electronic information products. With the diversification of the application and demand of electronic information products, printed circuit boards must also be improved in terms of specifications and characteristics. Existing multilayer printed circuit boards must be fabricated in a multi-pass process. After the various layers of the multilayer printed circuit board are pressed, the existing copper foil will cover the original positioning holes (ie, the dry holes) on the board layer, so the existing technology uses X-Ray perspective and integrates image and electricity. Control technology, correctly guide the drilling target machine to drill the target hole as a positioning reference in the subsequent process, such as drilling, forming, exposure and other processes. Φ Therefore, the accuracy of the target hole directly affects the yield of subsequent processes. In general, the accuracy of the target hole is quite high. At the same time, with the thinning of the printed circuit board, the accuracy of the target hole is relatively improved in the process of a thin printed circuit board (e.g., 5 to 0.1 mm thickness). The existing standard method of the iron hole of the standard hole is mainly seen in the image mode, the Distance Setting Mode and the 4 Points Compensation Mode. However, the above three types of non-porous drilling methods have been unable to provide a thin printed circuit board for the accuracy of the target hole. That is to say, it is impossible to solve the problem of the expansion and contraction of the target holes generated by the respective layers after the lamination process of the respective layers of the printed circuit board and the asymmetry. Therefore, it is necessary to propose a new method of drilling the target hole to solve or overcome the problem of the drilling method of the existing standard hole. SUMMARY OF THE INVENTION It is an object of the present invention to provide a method of drilling a hole in a printed circuit board drilling target machine for providing a high precision target hole and improving the yield of the printed circuit board process. Another object of the present invention is to provide a method of drilling a drilled circuit board for a printed circuit board to solve the problem of shrinkage and asymmetry of the target hole caused by the drilling method of the existing target hole. A method of drilling a drilled circuit board of a printed circuit board according to the present invention is to obtain a set of set coordinate values of a target hole on a printed circuit board and a set of target coordinate values, respectively. The X expansion ratio and the γ expansion ratio are calculated using the set coordinate value and the target coordinate value, respectively. A linear equation is then used to obtain a new constant term, where the new constant term is the constant term of the linear equation plus the X-zoom ratio and the Y-shrink ratio, respectively; and the target coordinate values are inversely calculated by using the new constant terms. After calculating the target coordinate value, respectively calculate the coordinate value of the set coordinate value and the center point of the target coordinate value, and add the calculated coordinate value difference to the target coordinate value 'to obtain the new target coordinate value' for the new The target coordinate value is sent to a drilling target machine, so that the drilling device of the drilling target machine drills a dry hole on the printed circuit board according to the new target coordinate values. 200948248 In an embodiment, after the new target coordinate value is obtained, a coordinate step of rotating the new target coordinate value may be further included. This step calculates the angular difference between the set coordinate value and the target coordinate value, and calculates the slope and angle of the connection between the center points, and rotates the coordinate of the new target coordinate value around the center point of the new target coordinate value. Finally, the rotated new coordinate value is translated back to its original position. The effect that can be achieved by the application of the invention is that: the problem of the expansion and contraction of the target hole caused by the drilling method of the existing target hole can be effectively solved, thereby improving the subsequent processes, such as drilling, molding, exposure, etc. The yield improves the overall yield of printed circuit boards, reducing production costs and increasing product reliability. [Embodiment] Referring to Figures 1 and 2, a method of drilling a printed circuit board drilling target machine according to the present invention is to feed a printed circuit board into a drilling target machine (as shown in step 210). Thereafter, a set of set coordinate values and a set of target coordinate values of the target holes on the printed circuit board are respectively obtained (as shown in step 22A). Using the set coordinate value and the target coordinate value to calculate the χ contraction ratio and the γ expansion ratio respectively (as shown in step 230, ρ then, using a linear equation to obtain a new constant term, where the constant term of the new constant term linear equation is respectively In addition, the 涨 zoom ratio and the Υ zoom ratio (as shown in step 240) are used; and the target coordinate values are inversely calculated by using the new constant terms (as shown in step 250). After calculating the target coordinate values, respectively Calculate the coordinate value of the set coordinate value and the center point of the target coordinate value, and add the calculated coordinate value difference to the target value of 200948248 to obtain the new target coordinate value, and send the new target coordinate value to one. Drilling the target machine, so that the drilling device of the drilling target machine respectively drills a target hole on the printed circuit board according to the new target coordinate values (as shown in step 27A). In an embodiment, a new one is obtained. After the target coordinate value, the coordinate step of rotating the new target coordinate value may be further included (as shown in step 260). ^ The step is to calculate the angular difference between the set coordinate value and the dry coordinate value, and calculate the connection between the center points. After the rate and the angle, the coordinates of the new target coordinate value are rotated around the center point of the new target coordinate value, and finally the rotated new coordinate value is translated back to its original position. Please refer to FIG. 3 further. In the present embodiment, four target holes are taken as an example. The printed circuit board 1 has four target holes respectively, including a first target hole 110, a second target hole 120, and a third The target hole 130 and the fourth target hole 140 are as shown in step 210 and step 220 in FIG. 1 , and the set target value of the four target holes in the drill target machine is set. The coordinate values are: the first target hole 110 is (Xsl, Ysl), the second target hole 12 is (XS2, Ys2), the third target hole 130 is (Xs3, Ys3), and the fourth target hole 140 is (Xs4, Ys4) 〇 In addition, when the printed circuit board is fed into the drilling target machine, the target image value of the target hole can be obtained through the image imaging technology of the drilling target machine, including the first target. The target coordinate value of the hole 11〇 is (xml, Yml), and the target coordinate value of the second target hole 120 is (Xm2, Ym2), The target coordinate value of the third target hole 130 is (Xm3, Ym3) and the target coordinate value of the fourth target hole 140 is 200948248 (Xm4, Ym4). 0 Since the actual difference between the set coordinate value and the target coordinate value is not large, However, the error between the two has exceeded the accuracy of the target hole. Therefore, if the hole is drilled according to the target coordinate value, the accuracy of the target hole cannot be maintained. Therefore, the target coordinate value of the target hole must be compensated to obtain The actual machining coordinate value (ie, the actual coordinate value of the target coordinate value in FIG. 3 shows the actual difference between the set coordinate value and the target coordinate value in an exaggerated manner) to facilitate the disclosure of the following embodiments of the present invention. As shown in step 230 in FIG. After obtaining the set coordinate value and the target coordinate value, the distance between each target hole is calculated separately. a first distance between the first target aperture u〇 and the second target aperture 120, a second distance between the second target aperture 12〇 and the third reference aperture 130, and a third target aperture 13〇 and fourth A third distance is between the target holes 140, and a fourth distance between the fourth target hole 14〇 and the first target hole 11〇. That is: the first distance: ds21=Xsl_Xs2, dm21=xml-xm2; the first distance.ds32=Ys3-Ys2, dm32=Ym3_Ym2; the third distance: ds34=Xs3-Xs4, dm34=xm3-xm4; the fourth distance :ds41=Ys4-Ysl, dm41=Ym4-Yml. The subscript S is represented as a set coordinate value, and the subscript m is represented as a target coordinate value. The X-roughness ratio and the Y-zoom ratio are calculated using the set coordinate value and the target coordinate value, respectively. The embodiment of the present invention defines the expansion ratio as: X 'induction ratio (X coordinate axis) is equal to (dm21 + dm34) / (ds21 + ds34); γ expansion ratio (γ coordinate axis) is equal to ((iin32 + dm41) /(ds32+ds41) 〇 Since the value of the X-roughness ratio and the γ-ratio is relatively small, the present invention 200948248 additionally defines a standard deviation (sigma) as: X standard deviation is equal to (X-ratio--. Taking a first constant, that is, the X standard deviation is equal to (X expansion ratio _υ multiplied by (ds2丨+ds34)/8, the first constant is (ds21+ds34)/8 is related to the distance between each target hole ; γ standard deviation is equal to (Y expansion ratio -1) multiplied by a second constant, that is, γ standard deviation is equal to (Υ Υ-ratio - 丨) multiplied by (ds32 + ds41) / 8, the second constant is with each standard The distance between the target holes is related. This standard deviation is the error adjustment setting of the drilling target machine, wherein the divisor 8 can be adjusted according to the actual use condition of the drilling target machine, and the correction is adjusted as shown in step 240 in FIG. Use the linear equation Y=mX+C to get the new constant term. In the linear equation, m is the slope and C is the constant term. The new constant term is the constant term C plus the standard deviation. The slope of the line between the two target holes It is defined as: the slope of the line connecting the first target hole 110 and the second target hole 120 mi=(Ys2-Ysi)/(XS2-Xsi) ί the second target hole 120 is connected with the third target hole 130 The slope of the line m2=(Xs3-Xs2)/(Ys3-Ys2); the slope of the line connecting the third target hole 130 and the fourth target hole 140 m3 = (Ys3-Ys4)/(Xs3-Xs4), The slope of the line connecting the four target holes 140 and the first target hole 110 is m4=(Xs4-Xsl)/(Ys4-Ysl), wherein the connection between the second target hole 120 and the third target hole 130 and The line between the fourth target hole 140 and the first target hole 11〇 is infinite due to the vertical direction, so the X coordinate value is exchanged with the Y coordinate value. 11 200948248 , which is obtained by the linear equation:

Ysl~miXsl + C! ′ ie c1= YsYS2=m2xs2 + c2, ie γ C1= Ysi- miXsl ;

1 to C: 4 is the original constant term. The original constant term is obtained, and the new constant term is: Add the original constant term to the standard deviation C! (new constant term) = Ci (the original constant term χ _ γ standard deviation); C2 (new constant term) = C2 (the original constant term) + x standard deviation; C3 (new constant term) =c: 3 (original constant term) + (_γ standard deviation); C4 (new constant term) = c: 4 (original constant term) + χ standard deviation. As shown in step 250 of Figure 1, the lower-step uses the aforementioned new constant term and slope to calculate the target coordinate value (Xt, Yt). Taking the first target hole iio(xtl, Yu) as an example, the slope of the line between the first target hole 11〇 and the fourth target hole 14〇 is mi. The linear equation is Ytl=m4Xtl+C4. The line connecting the first target hole 110 and the second target hole 12 is mi, and the linear equation is G Ytrn^Xn+C! YYti=m4Xtl+C4 and YtemiXu+C^, which can be obtained: Xti= (Yti-Ci)/m1 » Yti=(Ci+miC4)/(l-mim4); For the same reason:

Xt2 = (C2+m2Ci)/(l-mini2) ' Yt2=(Xt2-C2)/ni2 ; Xt3=(Yt3-C3)/m3, Yt3=(C3+m3C2)/(l-m2m3); Xt4= (C4+m4C3)/(l-m3ni4), Yt4=(Xt4_C4)/m4. Therefore, since the slope (m) and the new constant term (C) are known, the target coordinate value (Xt, Yt) can be obtained from 12 200948248. The next step calculates the coordinate value difference (Delta, De) and adds the calculated coordinate value difference to the target coordinate value (xt, Yt) to obtain the new target coordinate value (Xt, Yt). The coordinate value difference can be obtained by: Calculating the set coordinate value and the center coordinate value (XC, YC) of the target coordinate value. Set the center coordinate value of the coordinate value (also...^: Xcs=(Xsl+Xs2+Xs3+Xs4)/4; ycs=(ys1+ys2+Ys3+Ys4)/4. Center coordinate value of the light coordinate value (Xcm , Ycm) is: XCm=(Xml+Xm2+Xm3+Xm4)/4; Yms=(Yml+Ym2+Ym3+Ym4)/4. Calculate the coordinate value of the set coordinate value and the coarse coordinate value (Xc, Yc) Center average (Avg).

Avgx = (Xcs + Xcm) / 2; Avg wide (Ycs + Ycm) / 2. Find the coordinate value difference (Delta, De)

Dex=Avgx-Xcs; Dey=Avgy-Ycs. The calculated coordinate value difference can be added to the target coordinate value (Xt, Yt) to obtain the new target coordinate value (Xt, Yt). That is:

Xtl (new target coordinate value) = Xtl (target coordinate value) + Dex;

Ytl (new target coordinate value) = Ytl (target coordinate value) + Dey;

Xu (new target coordinate value) = Xt2 (target coordinate value) + Dex;

Yt2 (new target coordinate value) = Yt2 (target coordinate value) + Dey;

Xt3 (new target coordinate value) = xt3 (target coordinate value) + Dex;

Yt3 (new target coordinate value) = Yt3 (target coordinate value) + Dey;

Xt4 (new target coordinate value) = Xt4 (target coordinate value) + Dex;

Yt4 (new target coordinate value) = Yt4 (target coordinate value) + Dey. 13 200948248 As shown in step 270 of Figure 1, the new target coordinate value (Xt, Yt) is sent to the electronic control unit of the drill dryer to drive the drilling device according to the new target coordinate value (xt, Yt). The brush circuit board is divided into the standard dry holes. As shown in step 260 in Fig. 1, in another embodiment, the coordinate rotation of the new target coordinate value (Xt, Yt) can be performed. The angular difference of the target coordinate value. This step includes calculating the set coordinate value and the center point coordinate value of the target coordinate value. The center point coordinate value of the set coordinate value is:

Xs12=(Xsi+Xs2)/2 ′ Ys12=(Ys1+ys2)/2 ;

Xs23=(XS2+XS3)/2, Ys23=(Ys2+Ys3)/2 ;

Xs34=(Xs3+Xs4)/2 >Ys34=(Ys3+Ys4)/2;

Xsi4=(Xs1+Xs4)/2 ’ Ysl4=(Ysl+Ys4)/2. The center point coordinate of the target coordinate value is:

Xml2=(Xml+Xm2)/2, Ymi2=(Ymi+Ym2)/2 ;

Xm23 = (Xm2+Xm3)/2 ′ Ym23 = (Ym2+Ym3)/2 ;

Xm34=(Xm3+Xm4)/2, Ym34=(Ym3+Ym4)/2 ;

XxnU^Xrm + XnwOQ, Yml4=(Yml+Ym4)/2. Calculate the slope and angle of the line between the center points. Calculate the slope of the line connecting the center point (Xsl2, Ysl2) of the set coordinate value to the center point (XS34, YS34): msi=(YS34-Ysi2)/(Xs34_Xsi2) 'An angle thetasi=tan (msi), calculate the set coordinate value The slope of the line connecting the center point (XS14, YSM) to the center point (XS23, Ys23) is: ms2 = (YS23-Ysi4) / (Xs23 - Xsl4), angle thetasftan 'mu). 200948248 Similarly, the slope and angle (theta) of the line between the center points of the dry coordinate values are . mmi=(Ym34-Ymi2)/(Xm34-Xmi2), the angle thetamistarT^mmi); mm2 = (Ym23-Yml4)/( Xm23_Xml4), angle thetamftairkmn^). Calculate the angle of the line connecting the center point of the set coordinate value and the angle of the angle between the center points of the target coordinate value (Delta theta, De_theta). First calculate the average value (Avg_theta) of the line connecting the set coordinate value to the center point of the target coordinate value. Spring Avg_thetas=(thetasl+thetas2)/2 (set coordinate value);

Avg_thetam=(thetaml+thetam2)/2 (target coordinate value). Therefore, the angle difference is:

De_theta=(Avg—thetam-Avg_thetas)/2. In the next step, the coordinates of the new target coordinate value (Xt, Yt) are rotated by the angular difference of the center point (Xct, Yct) of the new target coordinate value, that is, De theta. Before the rotation, the new target coordinate value (Xt, Yt) is shifted to the center point (Xct, Yct) and moved to rotate. Calculate the new target coordinate value (Xt, Yj Ο center point (xct, Yct) before translation:

Xct=(Xtl+Xt2+Xt3+Xt4)/4 ;

Yct=(Yti+Yt2+Yt3+Yt4)/4. Shift the new target coordinate value (Xt, Yt) to the center point (Xct, Yet), which is the new target coordinate value (Xt, Yt) minus the center point (xct, Yct) coordinate value. Regarding the first target hole 110: the post-translational coordinate value rXtl=Xtl_xct, rYtl=Ytl_Y t. Regarding the second target hole 120: 15 200948248 Post-translational coordinate value rXt2=Xt2_Xet ' rYt2 = Yt2_Yct ; Regarding the third target hole 130 : Post-translational coordinate value rXt3=Xt3-Xct, rYt3=Yt3-Yct; Regarding the fourth target hole 140: Post-translational coordinate value rXt4=Xt4-Xet, rYt4=Yt4-Yct. Rotational translational coordinate value angle difference (De_theta): About the first target hole 110: rXtl (new coordinate value) = rXtl (original coordinate value) Cos (De_theta) - rYtl (original ® coordinate value) Sin (De_theta); rYti (new coordinate value) = rYti (original coordinate value) Cos (De_theta) - rYtl (original coordinate value) Sin (De_tlieta); About the second target hole 120: rXt2 (new coordinate value) = rXt2 (original coordinate value) Cos (De_theta)-rYt2 (original coordinate value) Sin(De_theta); rYt2 (new coordinate value)=rYt2 (original coordinate value) Cos(De-theta)-rYt2 (original coordinate value) Sin(De_theta); ❹ About the third Target hole 130: rXt3 (new coordinate value) = rXt3 (original coordinate value) Cos (De_theta) - rYt3 (original coordinate value) Sin (De_theta); rYt3 (new coordinate value) = rYt3 (original coordinate value) Cos (De_theta ) - rYt3 (original coordinate value) Sin (De_theta); Regarding the fourth target hole 140: rXt4 (new coordinate value) = rXt4 (original coordinate value) Cos (De_theta) - rYt4 (original coordinate value) Sin (De_theta); 16 200948248 rYt4 (new coordinate value) = rYt4 (original coordinate value) Cos (De_theta) - rYt4 (original coordinate value) Sin (De_theta). Finally, the rotated new coordinate value (rXt, rYt) is translated back to its original position: Regarding the first target hole 110:

Xtl=rXtl (new original coordinate value)+Xct; Ytl=rYtl (new original coordinate value)+Yct; Regarding the second target hole 120:

Xt2=rXt2 (new original coordinate value)+Xet; Yt2=rYt2 (new original coordinate value)+Yct; _About the third target hole 130:

Xt3=rXt3 (new original coordinate value)+Xct; Yt3=rYt3 (new original coordinate value)+Yct; Regarding the fourth target hole 140:

Xt4=rXt4 (new original coordinate value)+Xct; Yt4=rYt4 (new original coordinate value)+Yct. Sending the rotated new target coordinate value (Xt, Yt) to the electronic control device of the drilling target machine to drive the drilling device of the drilling target machine to drill out on the printed circuit board according to the new target coordinate value (Xt, Yt) Target hole. Although the present invention has been described above in terms of a preferred embodiment, it is not intended to limit the invention, and various modifications and changes may be made without departing from the spirit and scope of the invention. The scope of the invention is defined by the scope of the appended claims. BRIEF DESCRIPTION OF THE DRAWINGS In order to make the above and other objects, features, advantages and embodiments of the present invention more obvious, the detailed description of the drawings is as follows: 17 200948248 Figure 1 shows the drill of the machine of the present invention. Flow chart of the hole method. A printed circuit board drill target of an embodiment is a schematic view of a printed circuit board for carrying out an embodiment of the present invention. FIG. 3 is a diagram showing a target hole of the printed circuit board in FIG. Set the coordinate value of the coordinate value and the target coordinate value. ❿ [Main component symbol description] 100: Printed circuit board 130: Third target hole 110: First target hole 140: Fourth target hole 120: Second target hole 210-270: Step ❹ 18

Claims (1)

200948248 X. Patent application scope: 1. A drilling method for a printed circuit board drilling target machine, comprising at least: feeding a printed circuit board into a drilling target machine; respectively obtaining a set of setting coordinates of the target hole on the printed circuit board a value and a set of dry coordinate values; using the set coordinate value and the target coordinate value to calculate the X expansion ratio and the Y expansion ratio respectively; using a linear equation to obtain a new constant term, wherein the new constant term is a constant term of the linear equation Add X expansion ratio and Y expansion ratio respectively; use these new constant terms to inversely calculate the target coordinate value; calculate the coordinate value of the set coordinate value and the center point of the target coordinate value respectively, and calculate the calculated The coordinate value difference is added to the target coordinate value to obtain the new target coordinate value; and the new target coordinate values are sent to the electronic control device of the drilling target machine to drive the drilling device of the drilling target machine according to the new target coordinate values. A target hole is drilled on the printed circuit board. 2. The drilling method of the printed circuit board drilling target machine according to claim 1, wherein after obtaining the new target coordinate value, the method further comprises: rotating the coordinate of the new target coordinate value, comprising: calculating the set coordinate value and the target The angular difference of the coordinate values; the slope and angle of the line connecting the center points; the coordinates of the new target coordinate value are rotated around the center point of the new target coordinate value; and 200948248 translates the rotated new coordinate value back The original position β 3 · The drilling method of the printed circuit board drill machine according to claim 1 , wherein the set coordinate value and the dry coordinate value are respectively used to calculate the X expansion ratio and the Υ expansion ratio The steps include: separately calculating the distance between each target hole; calculating the X expansion ratio and the γ contraction ratio respectively using the distance between the standard light holes; and calculating the X standard deviation and the Υ standard deviation respectively, wherein the X standard The difference is equal to (X shrinkage ratio -1) multiplied by a first constant, Υ standard deviation is equal to (Υ Υ -1 -1) multiplied by a second constant, the first constant and the second constant are associated with each target Kong Zhi The distance between them is related. 4. The method of drilling a printed circuit board money target machine according to claim 1, wherein the linear equation is used to obtain a new constant term, wherein the constant term of the new constant term linear equation is respectively added to the X expansion ratio. And the step of γ 涨 expansion ratio includes: using a linear equation Y=mX+C to obtain a new constant term, where m is the slope of the line between the two target holes, C is the original constant term; and the original constant term is added The standard deviation becomes a new constant term, where the new constant term is equal to one of the original constant term plus the X standard deviation and the gamma standard deviation. 5. The method of drilling a drilled circuit board of a printed circuit board according to claim 4, wherein the target coordinate value is represented by the new constant term and the slope 20 200948248 rate. 6. The drilling method of a printed circuit board drilling target machine according to claim 1, wherein the coordinate value of the set coordinate value and the center point of the target coordinate value are separately calculated, and the calculated coordinate value is calculated. The step of adding a target coordinate value to obtain a new target coordinate value includes: calculating a set coordinate value and a center coordinate value of the target coordinate value; calculating a center average value of the set coordinate value and a center coordinate value of the target coordinate value ; subtract the center coordinate value from the center average value to find the coordinate value difference; and add the calculated coordinate value difference to the target coordinate value to obtain the new target coordinate value. 7. A method of drilling a printed circuit board drill target machine, comprising: at least: obtaining a set of set coordinate values of a target hole on a printed circuit board and a set of target coordinate values; using the set coordinate value and the target coordinate The values are calculated separately for the χ contraction ratio and the Υ contraction ratio; a linear equation is used to obtain a new constant term, where the new constant term is the constant term of the linear equation plus the X-roughness ratio and the γ bath ratio; using these new constants The item inversely calculates the target coordinate value; and separately calculates the set coordinate value and the coordinate value difference of the center point of the target coordinate value and adds the calculated coordinate value difference to the target coordinate value to obtain the new target coordinate value' Sending the new target coordinate values to a drill without 21 200948248 machine 'make the drilling device of the drill target machine to drill the target hole β on the printed circuit board according to the new target coordinate values. The drilling method of the printed circuit board drilling target machine according to Item 7, wherein after obtaining the new target coordinate value, the method further comprises: rotating the coordinates of the new target coordinate value, including: calculating the setting seat The angle difference between the value and the target coordinate value; the slope and angle of the line connecting the center point; the coordinate of the new target coordinate value is rotated around the center point of the new target coordinate value; and the new coordinate value after the rotation Pan back to its original position. 9. The method of drilling a printed circuit board money target machine according to claim 7, wherein the step of using the set coordinate value and the target coordinate value respectively to calculate an X reduction ratio and a gamma collapse ratio The method comprises: separately calculating the distance between the non-holes of each standard; calculating the χ expansion ratio and the 丫 expansion ratio by using the distance between each target hole; and calculating the X standard deviation and the γ standard deviation respectively, wherein the χ standard deviation is equal to (X-ratio x _1) multiplied by the H constant, the gamma standard deviation is equal to (γ-ratio x-1) multiplied by the -second constant, which is related to the distance between the second constant and each (four) hole . 10. The 22 200948248 drilling method for a printed circuit board drill target machine according to claim 7, wherein the linear equation is used to obtain a new constant term, wherein the constant term is a constant term of the linear equation plus X-shrinkage The ratio and the ratio of gamma expansion and contraction include: using the linear equation Y=mX+c to obtain a new constant term, where m is the slope of the line between the two target holes, C is the original constant term; and the original constant term is added to the standard The difference becomes a new constant term, where the new constant term is equal to one of the original constant term plus the X standard deviation and the Y standard deviation. 11. The method of drilling a printed circuit board driller according to the first aspect of the invention, wherein the target coordinate value uses the new constant term and the slope represents β 12. As claimed in claim 7 The money hole method of the printed circuit board drilling target machine, wherein the coordinate value difference between the set coordinate value and the center point of the target coordinate value is respectively calculated and the calculated coordinate value difference is added to the target coordinate value to obtain a new The step of the target coordinate value includes: calculating the set coordinate value and a central coordinate value of the target coordinate value; calculating a central average value of the set coordinate value and a central coordinate value of the target coordinate value; subtracting the central average value from the central coordinate Value, find the coordinate value difference; and add the calculated coordinate value difference to the target coordinate value to obtain the new target coordinate value " XI, Schema: 23