CN114286522A - Manufacturing method of printed circuit board and printed circuit board - Google Patents

Abstract

The present invention relates to the field of printed circuit board technology, and in particular, to a method for manufacturing a printed circuit board and a printed circuit board. The method for manufacturing the printed circuit board comprises an effective area located in the center and a frame area surrounding the effective area, wherein before a slotted hole is machined in the effective area of the printed circuit board, a first reference hole is arranged on the frame area surrounding the effective area, then the first slotted hole is arranged, whether the requirement for machining the slotted hole is met or not is judged according to the position relation between the first slotted hole and the first reference hole, if the requirement is not met, a milling machine for forming the slotted hole is adjusted first, existing problems are repaired until the requirement is met, then the slotted hole is machined in the effective area, and the technical problem that only scrapped when the slotted hole is directly machined in the effective area is avoided. The printed circuit board provided by the present disclosure is manufactured by the manufacturing method, and therefore, the printed circuit board also has the technical effects.

Description

Manufacturing method of printed circuit board and printed circuit board

technical field

The invention relates to the technical field of printed circuit boards, in particular to a manufacturing method of a printed circuit board and a printed circuit board.

Background technique

A printed circuit board is an important electronic component and a support body for electronic components. Some of the existing printed circuit boards need to be provided with blind holes, through holes and slot holes on the board. Among them, blind holes are generally processed by laser, which are laser blind holes. Through holes are drilled, usually circular holes. Slot holes are generally irregular drilling holes, and milling cutters are usually used to drill slot holes. Typically, slotted holes are used to mount electronic components, and blind holes and through holes are used to mount pins. And blind holes, through holes and slot holes are processed in stages, not processed at the same time.

In the related art, the processing method of the printed circuit board is as follows: firstly, a positioning hole is opened on the cut board, the positioning hole is used for positioning, the board is installed in the laser equipment, and the blind hole is set by the laser; and then the positioning hole is used. Positioning, the plate is installed on the drilling machine, and the through hole is opened through the drilling machine; next, the plate is positioned and installed under the milling cutter by using the positioning hole, and the slot hole is milled out. The detection method of the slot hole is to measure the position of the first piece after the first piece of product is produced. If the deviation exceeds the error range, it is necessary to adjust the parameters to make the first piece.

However, with the existing manufacturing method, the position detection of the slot hole requires the measurement of the result after the first piece is processed. waste.

SUMMARY OF THE INVENTION

The present invention provides a method for manufacturing a printed circuit board and a printed circuit board, which can effectively solve the above or other potential technical problems.

A first aspect of the present invention is to provide a method for manufacturing a printed circuit board. The printed circuit board includes an effective area at the center and a frame area surrounding the effective area, including: opening at least two positioning holes on the frame area; The hole positions the printed circuit board; at least two first reference points are taken in the frame area, a plurality of first reference holes are opened around each first reference point, and all the first reference points around each first reference point The hole is center-symmetrical about its corresponding first datum point; with each first datum point as the datum, a plurality of first slot holes corresponding to each first datum point one-to-one are opened in the frame area with a milling machine; When the slotted hole is in contact with at least one of the first reference holes, adjust the positioning parameters or expansion and contraction coefficient of the milling machine.

In an optional embodiment according to the first aspect, when the first slotted hole is in contact with the at least one first reference hole, adjusting the positioning parameter or expansion and contraction coefficient of the milling machine specifically includes: when each first slotted hole is in contact with the at least one first reference hole When the corresponding first reference holes are in contact in the same direction, adjust the origin position of the milling machine; when each first slot is in contact with the adjacent first reference hole inside or outside, adjust the pre-configured expansion of the milling machine. reduction factor. It should be noted that, in this embodiment, when each first slotted hole and its corresponding first reference hole are in contact in the same direction, it indicates that there is a deviation in the origin positioning of the milling machine. According to the specific situation, the origin position of the milling machine is adjusted to return to the accurate position, and the above-mentioned positioning deviation problem is repaired, and then processing is carried out in the effective area. When each first slot is in contact with its inner or outer adjacent first reference hole, it indicates that there is a problem with the pre-configured expansion and contraction coefficient of the milling machine, and then adjust the pre-configured expansion and contraction coefficient of the milling machine according to the specific situation. The reduction factor is optimized to optimize the above-mentioned problems, and then the processing is carried out in the effective area to ensure the accuracy of processing.

In an optional embodiment according to the first aspect, contacting the first slot hole with the first reference hole along the same direction includes: opening at least one above, below, left and right side of each first reference point. A first reference hole; when each first slotted hole is in contact with the first reference hole above its corresponding first reference point, adjust the origin position of the milling machine downward; when each first slotted hole is in contact with its corresponding first reference hole When the first reference hole below a reference point is in contact, adjust the origin position of the milling machine upward; when each first slot is in contact with the first reference hole on the left side of the corresponding first reference point, adjust the milling machine to the right When each first slot is in contact with the first reference hole on the right side of its corresponding first reference point, adjust the origin position of the milling machine to the left. It should be noted that at least one first reference hole is provided above, below, on the left and right of each first reference point, and further, according to the direction of the first reference hole contacted by the first slotted hole, more Accurately determine the specific problem of the origin. For example, when each first slot is in contact with the first reference hole above its corresponding first reference point, it means that the origin of the milling machine positioning is shifted upward at this time. Adjust the origin position of the milling machine downward to correct the above problem. For example, when each first slot is in contact with the first reference hole below the corresponding first reference point, it means that the origin of the milling machine positioning is shifted downward at this time, and the origin position of the milling machine can be adjusted upward by adjusting the origin of the milling machine. Fix the above problem. For example, when each first slot is in contact with the first reference hole on the left side of its corresponding first reference point, it means that the origin of the milling machine positioning is shifted to the left, and the milling machine can be adjusted to the right by adjusting the position of the milling machine to the right. The origin position further corrects the above problem. For example, when each first slot is in contact with the first reference hole on the right side of its corresponding first reference point, it means that the origin of the milling machine positioning is shifted to the right, and the milling machine can be adjusted to the left by adjusting the position of the milling machine to the left. The origin position further corrects the above problem.

In an optional embodiment according to the first aspect, at least one first reference hole is provided above, below, on the left and right of each first reference point; when the first slot hole located above corresponds to it When the first reference hole above the first reference point is in contact with and the first slot hole located below is in contact with the first reference hole below the corresponding first reference point, the expansion and contraction coefficient of the milling machine is reduced; When a slotted hole is in contact with the first reference hole below the corresponding first reference point, and the first slotted hole located below is in contact with the first reference hole above the corresponding first reference point, the expansion and contraction coefficient of the milling machine is increased. It should be noted that, in this embodiment, at least one first reference hole is provided above, below, left and right of each first reference point; The state of the hole, and then more accurately determine the specific problem of the expansion and contraction coefficient of the milling machine. For example, when the first slot hole located above is in contact with the first reference hole above the corresponding first reference point, and the first slot hole located below is in contact with the first reference hole below the corresponding first reference point, then It shows that the expansion and contraction coefficient of the milling machine is too large at this time, and the technical problem of the large expansion and contraction coefficient of the milling machine is corrected by reducing the expansion and contraction coefficient of the milling machine. For example, when the first slot hole located above is in contact with the first reference hole below the corresponding first reference point, and the first slot hole located below is in contact with the first reference hole above the corresponding first reference point, then It shows that the expansion and contraction coefficient of the milling machine is too small at this time, and the technical problem of the small expansion and contraction coefficient of the milling machine is corrected by increasing the expansion and contraction coefficient of the milling machine.

In an optional embodiment according to the first aspect, the method further includes: taking a plurality of second reference points in the effective area, and opening a plurality of second reference holes around each second reference point; When both the positioning and the expansion and contraction coefficient meet the preset requirements, a second slot hole is opened in the effective area based on each second reference point. It should be noted that, specifically, in this embodiment, when the first reference hole is opened in the frame area, the second reference hole is also opened in the effective area. After opening the first slot, determine whether there is a problem with the positioning parameters and expansion and contraction coefficient of the milling machine according to the appearance of the first slot. If the positioning parameters and expansion and contraction coefficient of the milling machine meet the requirements, then open the second slot in the effective area. hole. If the positioning parameters or expansion and contraction coefficient of the milling machine do not meet the requirements, adjust the milling machine according to the specific situation to meet the requirements, and then process the second slot in the effective area to ensure the accuracy of the second slot.

In an optional embodiment according to the first aspect, the method further includes: removing the frame area. It should be noted that, specifically, in this embodiment, the frame area can be removed. After the second slot hole is set in the effective area, the processing of the effective area is completed, and the frame area used for detection can be removed at this time.

In an optional embodiment according to the first aspect, the first reference hole is a first blind hole or a first through hole; the second reference hole is a second blind hole or a second through hole.

In an optional embodiment according to the first aspect, the first reference hole includes a first blind hole and a first through hole, and a plurality of first blind holes and a plurality of first through holes are alternately arranged.

In an optional embodiment according to the first aspect, the printed circuit board is positioned on the laser device through the positioning hole, the first blind hole and the second blind hole are made through the laser device; the printed circuit board is positioned on the drilling machine through the positioning hole above, the first through hole and the second through hole are made by a drilling machine.

In an optional embodiment according to the first aspect, the printed circuit board is a rectangular board; at least one first reference point is taken on each of the four sides of the frame area. It should be noted that the printed circuit board is a rectangular board; and at least one first reference point is taken on each of the four sides of the frame area, so as to ensure the accuracy of the test results.

A second aspect of the present invention also provides a printed circuit board, comprising an effective area in the middle and a frame area to be removed surrounding the effective area; the frame area is provided with positioning holes and at least two detection hole arrays, and the detection hole arrays include A plurality of first reference holes and first slot holes, the plurality of first reference holes are centrally symmetric with the first reference point, and the first slot holes are opened with the first reference point as a reference.

In an optional embodiment according to the second aspect, the effective area includes a plurality of second reference holes and second slot holes, and the second slot holes and the second reference holes are arranged at intervals.

In an optional embodiment according to the second aspect, the first reference hole includes a first blind hole and a first through hole, and the first blind hole and the first through hole are alternately arranged; the second reference hole includes a second blind hole and The second through hole; and/or, the distance between the first reference hole and the first slot hole is 0 to 0.102 mm.

In an optional embodiment according to the second aspect, the printed circuit board is a rectangular board, and each side of the frame area is provided with at least one detection hole array.

In the method for manufacturing a printed circuit board provided by an embodiment of the present disclosure, the printed circuit board includes an effective area located in the center and a frame area surrounding the effective area, including: opening at least two positioning holes on the frame area; Positioning; take at least two first reference points in the frame area, open a plurality of first reference holes around each first reference point, and all the first reference holes around each first reference point are about its corresponding The center of the first reference point is symmetrical; with each first reference point as a reference, a plurality of first slot holes corresponding to each first reference point one-to-one are opened in the frame area with a milling machine; when the first slot hole and at least one When the first reference hole is in contact, adjust the positioning parameters or expansion and contraction coefficient of the milling machine. In the manufacturing method of the printed circuit board provided by the present disclosure, firstly, a first reference hole and a first slot hole are arranged on the frame area, and by observing whether the first slot hole and the first reference hole are in contact, the positioning parameters or expansion of the milling machine are determined. Whether there is a problem with the shrinkage coefficient, if after opening the first slot, it is found that there is a problem with the positioning parameters or expansion and shrinkage coefficient of the milling machine, then adjust the milling machine according to the specific situation to avoid the problem, and then process in the effective area, which can avoid the need to work in the effective area first. After processing, if the problem is found, it will be scrapped, and the problem of wasting materials.

The printed circuit board provided by the present disclosure is manufactured by the above-mentioned manufacturing method, so it also has the above-mentioned technical effects.

Advantages of additional aspects of the invention will be set forth in part in the description which follows, in part will become apparent from the description below, or will be learned by practice of the invention.

Description of drawings

The above and other objects, features and advantages of embodiments of the present invention will become more readily understood from the following detailed description with reference to the accompanying drawings. In the accompanying drawings, various embodiments of the present invention will be illustrated by way of example and not limitation, wherein:

FIG. 1 is a schematic structural diagram showing an overall structure of a method for manufacturing a printed circuit board provided by an embodiment of the present disclosure;

FIG. 2 is a schematic structural diagram of a printed circuit board provided with positioning holes according to an embodiment of the present disclosure;

3 is a schematic structural diagram of a printed circuit board provided with positioning holes, a first blind hole, and a second blind hole according to an embodiment of the present disclosure;

4 is a schematic structural diagram of a printed circuit board provided with a positioning hole, a first reference hole and a second reference hole according to an embodiment of the present disclosure;

5 is a schematic structural diagram of a printed circuit board provided with a positioning hole, a first reference hole, a second reference hole and a first slot hole according to an embodiment of the present disclosure;

FIG. 6 is a schematic structural diagram of the printed circuit board provided by the embodiment of the present disclosure after removing the frame area.

Reference number:

11 - effective area;

111-The second reference hole;

1111-second blind hole; 1113-second through hole;

112 - the second slot;

13 - border area;

131-positioning hole; 132-detecting hole array;

133 - the first reference hole;

1331-first blind hole; 1333-first through hole;

135 - The first slot.

Detailed ways

Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary, and are intended to explain the present invention and should not be construed as limiting the present invention.

It should be understood that the following embodiments do not limit the execution order of each step in the method protected by the present invention. The individual steps of the method of the present invention can be performed in any possible order and can be performed in a cyclic fashion without conflicting each other.

In the description of the present invention, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "inner", "outer", etc. The orientation or positional relationship is based on the orientation or positional relationship shown in the accompanying drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, be constructed and operation, and therefore should not be construed as a limitation of the present invention.

In addition, the terms "first" and "second" are only used for descriptive purposes, and should not be construed as indicating or implying relative importance or implying the number of indicated technical features. Thus, a feature delimited with "first", "second" may expressly or implicitly include at least one of that feature. In the description of the present invention, "plurality" means at least two, such as two, three, etc., unless otherwise expressly and specifically defined.

In the present invention, unless otherwise expressly specified and limited, the terms "installed", "connected", "connected", "fixed" and other terms should be understood in a broad sense, for example, it may be a fixed connection or a detachable connection It can be a mechanical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between the two elements, unless otherwise clearly defined. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

In the description of this specification, description with reference to the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples", etc., mean specific features described in connection with the embodiment or example , structure, material or feature is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, those skilled in the art may combine and combine the different embodiments or examples described in this specification, as well as the features of the different embodiments or examples, without conflicting each other.

A printed circuit board is an important electronic component and a support body for electronic components. Some of the existing printed circuit boards need to be provided with blind holes, through holes and slot holes on the board. Among them, blind holes are generally processed by laser, which are laser blind holes. Through holes are drilled, usually circular holes. Slot holes are generally irregular drilling holes, and milling cutters are usually used to drill slot holes. Typically, slotted holes are used to mount electronic components, and blind holes and through holes are used to mount pins. And blind holes, through holes and slot holes are processed in stages, not processed at the same time.

In the related art, the processing method of the printed circuit board is as follows: firstly, a positioning hole is opened on the cut board, the positioning hole is used for positioning, the board is installed in the laser equipment, and the blind hole is set by the laser; and then the positioning hole is used. Positioning, the plate is installed on the drilling machine, and the through hole is opened through the drilling machine; next, the plate is positioned and installed under the milling cutter by using the positioning hole, and the slot hole is milled out. The detection method of the slot hole is to measure the position of the first piece after the first piece of product is produced. If the deviation exceeds the error range, it is necessary to adjust the parameters to make the first piece. However, with the existing manufacturing method, the position detection of the slot hole requires the measurement of the result after the first piece is processed. waste.

In view of this, in the method for manufacturing a printed circuit board provided by the embodiment of the present application, the printed circuit board includes an effective area located in the center and a frame area surrounding the effective area. The first reference hole is set on the frame area set on the effective area, and then the first slot hole is set. Based on the positional relationship between the first slot hole and the first reference hole, it is judged whether it meets the requirements of slot hole processing. If the requirements are met, first adjust the milling machine for slotted holes, and then repair the existing problems until the requirements are met, and then process the slotted holes in the effective area, thereby avoiding the technical problem that the problem of directly processing the slotted holes in the effective area can only be scrapped. .

Specifically, a method for manufacturing a printed circuit board provided by an embodiment of the present disclosure, the printed circuit board includes an effective area located in the center and a frame area surrounding the effective area, including: opening at least two positioning holes on the frame area; Positioning the printed circuit board; taking at least two first reference points in the frame area, opening a plurality of first reference holes around each first reference point, and all the first reference holes around each first reference point The center is symmetrical with respect to its corresponding first reference point; with each first reference point as a reference, a plurality of first slot holes corresponding to each first reference point one-to-one are opened in the frame area with a milling machine; when the first slot When the hole is in contact with at least one first reference hole, adjust the positioning parameter or expansion and contraction coefficient of the milling machine. In the manufacturing method of the printed circuit board provided by the present disclosure, firstly, a first reference hole and a first slot hole are arranged on the frame area, and by observing whether the first slot hole and the first reference hole are in contact, the positioning parameters or expansion of the milling machine are determined. Whether there is a problem with the shrinkage coefficient, if after opening the first slot, it is found that there is a problem with the positioning parameters or expansion and shrinkage coefficient of the milling machine, then adjust the milling machine according to the specific situation to avoid the problem, and then process in the effective area, which can avoid the need to work in the effective area first. After processing, if the problem is found, it will be scrapped, and the problem of wasting materials.

FIG. 1 is a schematic structural diagram showing the overall structure of the manufacturing method of the printed circuit board provided by the embodiment of the present disclosure. Please refer to FIG. 1 . In the manufacturing method of the printed circuit board provided by the embodiment of the present application, the printed circuit board includes an effective area located in the center. 11 and the frame area 13 surrounding the effective area 11, including opening at least two positioning holes 131 on the frame area 13; positioning the printed circuit board through the positioning holes 131; taking at least two first reference points in the frame area 13, A plurality of first reference holes 133 are opened around each first reference point, and all the first reference holes 133 around each first reference point are centrally symmetric with respect to the corresponding first reference point; with each first reference point As a reference, a plurality of first slot holes 135 corresponding to each of the first reference points are opened in the frame area 13 by a milling machine; when the first slot holes 135 are in contact with at least one first reference hole 133, the milling machine is adjusted. The positioning parameter or expansion and contraction factor.

FIG. 2 is a schematic structural diagram of a printed circuit board provided with positioning holes according to an embodiment of the present disclosure. Please refer to FIG. 2 . Specifically, in the manufacturing method of the printed circuit board provided by the present application, first, three different The positioning hole 131 of the wire. The three positioning holes 131 can be circular or can be set to other shapes. In this embodiment, the three positioning holes 131 are set to be circular, and the three positioning holes 131 can be produced by using an X-RAY shooting machine. 3.175mm. It should be noted that, in this embodiment, three positioning holes 131 are provided to accommodate the phenomenon that the printed circuit board is installed in reverse, that is, it plays a role of preventing fools. Exemplarily, in this embodiment, the three positioning holes 131 are arranged and distributed in a right-angled triangle.

3 is a schematic structural diagram of a printed circuit board provided with positioning holes, a first blind hole and a second blind hole according to an embodiment of the present disclosure. Please refer to FIG. 3 . Next, the printed circuit board is positioned on the laser device through the positioning holes 131 . First, a first blind hole 1331 is opened on the frame area 13 and a second blind hole 1111 is opened on the effective area 11 by a laser device; Eight first blind holes 1331 are opened around each first reference point, each pair is a group, and each group is symmetrically arranged with respect to the first reference point, that is, the eight first blind holes 1331 are symmetrically arranged in four quadrants . The diameter of the first blind hole 1331 may be 0.075 mm to 0.2 mm, and for example, the diameter of the first blind hole 1331 is 0.1 mm.

At the same time, the second blind hole 1111 is opened according to the user's specific design in the effective area 11 . A plurality of second reference points are taken in the effective area 11, and a plurality of second blind holes 1111 are opened around each second reference point. The diameter of the second blind holes 1111 may be 0.075mm to 0.2mm. The diameter of the second blind hole 1111 is 0.1 mm. It can be understood that the specific opening methods of the first blind hole 1331 and the second blind hole 1111 are not limited here, and in other specific embodiments, they can be adaptively adjusted according to the needs of users.

4 is a schematic structural diagram of a printed circuit board provided with positioning holes, a first reference hole and a second reference hole according to an embodiment of the present disclosure. Please refer to FIG. 4 . Next, the printed circuit board is positioned on the drilling machine through the positioning holes 131 , The first through hole 1333 and the second through hole 1113 are formed by a drilling machine. Specifically, first through holes 1333 are provided around the four first reference points of the frame area 13 , four first through holes 1333 are opened around each first reference point, and the four first through holes 1333 are located at the first reference point. They are arranged symmetrically in pairs, that is, they are respectively set above, below, to the left and to the right of the first reference point. Two first blind holes 1331 are disposed between two adjacent first through holes 1333, and four first through holes 1333 are disposed on four coordinate axes. Meanwhile, a plurality of second through holes 1113 are provided around the second reference point of the effective area. Exemplarily, the diameters of the first through holes 1333 and the second through holes 1113 are 0.2 mm to 3 mm, and exemplarily, the diameters of the first through holes 1333 and the second through holes 1113 are 0.2 mm. It can be understood that the opening manner of the first through hole 1333 and the second through hole 1113 is not limited here, and in other specific embodiments, it can be adjusted adaptively according to the needs of users.

FIG. 5 is a schematic structural diagram of a printed circuit board provided with positioning holes, a first reference hole, a second reference hole, and a first slot hole according to an embodiment of the present disclosure, please refer to FIG. Positioned on the milling machine, the first slot 135 is provided on the frame area 13 by the milling machine. Specifically, based on the four first reference points of the frame area 13, four first slot holes 135 are opened. According to the theory, the distance between each first slot hole 135 and the eight first blind holes 1331 around it will be All are the same, both are 0.102mm. And the distance between each first slot hole 135 and the four first through holes 1333 around it is the same, which is 0.127 mm.

After the opening of the four first slot holes 135 is completed, it is checked whether the positions of the first slot holes 135 meet the requirements. If the first slot hole 135 is not in contact with the first blind hole 1331 and the first through hole 1333, the requirement is met. If the first slot hole 135 is in contact with one of the first blind hole 1331 or the first through hole 1333 , adjust the positioning parameters or expansion and contraction coefficient of the milling machine until it meets the requirements.

Please continue to refer to FIG. 1 . Then, when the positioning and expansion and contraction coefficient of the printed circuit board meet the preset requirements, the second slot holes 112 are opened in the effective area 11 based on each second reference point. Exemplarily, the shape of the first slot 135 and the second slot 112 is that one opposite side is an arc, and one opposite side is a parallel and corresponding line segment, that is, one of the opposite sides of a rectangle is set as a semi-circular arc, The size of the rectangle is 6mm×6mm, and the diameter of the semicircular arc is 6mm.

FIG. 6 is a schematic structural diagram of the printed circuit board provided by the embodiment of the present disclosure after the frame area is removed. Please refer to FIG. 6 , and then, the frame area 13 is removed.

Finally, the distance between the second slot hole 112 and the second blind hole 1111 and the second through hole 1113 in the effective area 11 can be measured to further ensure the accuracy of the position of the second slot hole 112 .

Referring to FIGS. 1 to 6 , in an optional exemplary embodiment, when the first slot hole 135 is in contact with at least one first reference hole 133 , the positioning parameters or expansion and contraction coefficients of the milling machine are adjusted, specifically including: when When each first slot 135 is in contact with its corresponding first reference hole 133 in the same direction, adjust the origin position of the milling machine; when each first slot 135 is adjacent to its inner or outer first reference When the hole 133 is in contact, adjust the expansion and contraction coefficient pre-configured by the milling machine. It should be noted that, in this embodiment, when each first slot hole 135 and its corresponding first reference hole 133 are in contact along the same direction, it means that the origin of the milling machine is deviated, then according to If the deviation occurs, adjust the origin position of the milling machine to make it return to the accurate position, and then repair the above-mentioned positioning deviation problem, and then carry out processing in the effective area 11 . When each first slot hole 135 is in contact with the adjacent first reference hole 133 on the inner side or outer side, it indicates that there is a problem with the pre-configured expansion and contraction coefficient of the milling machine, and then the pre-configuration of the milling machine is adjusted according to the specific situation. The expansion and shrinkage coefficient of 100 can optimize the above-mentioned problems, and then process in the effective area 11 to ensure the accuracy of the process.

Specifically, in this embodiment, contacting the first slot hole 135 with the first reference hole 133 along the same direction includes: at least one A reference hole 133; when each first slot hole 135 is in contact with the first reference hole 133 above its corresponding first reference point, adjust the origin position of the milling machine downward; when each first slot hole 135 corresponds to it When the first reference hole 133 below the first reference point is in contact, adjust the origin position of the milling machine upward; when each first slot hole 135 is in contact with the first reference hole 133 on the left side of the corresponding first reference point, Adjust the origin position of the milling machine to the right; when each first slot hole 135 is in contact with the first reference hole 133 on the right side of the corresponding first reference point, adjust the origin position of the milling machine to the left.

It should be noted that at least one first reference hole 133 is provided above, below, on the left and right of each first reference point, and the direction of the first reference hole 133 that the first slot hole 135 contacts can be determined according to the direction , and then more accurately determine the specific problem of the origin.

For example, when each first slot 135 is in contact with the first reference hole 133 above its corresponding first reference point, it means that the origin of the milling machine positioning is shifted upward at this time, and the origin of the milling machine can be adjusted downward by moving downward. position to correct the above problem.

For example, when each first slot hole 135 is in contact with the first reference hole 133 below its corresponding first reference point, it means that the origin of the milling machine positioning is shifted downward at this time, and the origin of the milling machine can be adjusted upward by moving upward. position to correct the above problem.

For example, when each first slot hole 135 is in contact with the first reference hole 133 on the left side of its corresponding first reference point, it means that the origin of the milling machine positioning is shifted to the left at this time, which can be adjusted to the right by adjusting The origin position of the milling machine then corrects the above problem.

For example, when each first slot hole 135 is in contact with the first reference hole 133 on the right side of its corresponding first reference point, it means that the origin of the milling machine positioning is shifted to the right at this time, which can be adjusted to the left by adjusting The origin position of the milling machine then corrects the above problem.

In an optional exemplary embodiment, at least one first reference hole 133 is provided above, below, on the left and right of each first reference point; When the first reference hole 133 above the first reference point is in contact, and the first slot hole 135 located below is in contact with the first reference hole 133 below the corresponding first reference point, the expansion and contraction coefficient of the milling machine is reduced; When the first slot hole 135 is in contact with the first reference hole 133 below the corresponding first reference point, and the first slot hole 135 located below is in contact with the first reference hole 133 above the corresponding first reference point, the milling machine is increased. expansion and contraction coefficient.

It should be noted that, in this embodiment, at least one first reference hole 133 is provided above, below, on the left and right side of each first reference point; The present state of a reference hole 133 can further accurately determine the specific problem of the expansion and contraction coefficient of the milling machine.

For example, when the first slot hole 135 located above is in contact with the first reference hole 133 above the corresponding first reference point, and the first slot hole 135 located below is in contact with the first reference hole 133 below the corresponding first reference point When the contact is made, it means that the expansion and contraction coefficient of the milling machine is too large at this time. By reducing the expansion and contraction coefficient of the milling machine, the technical problem of the large expansion and contraction coefficient of the milling machine is corrected.

For example, when the first slot hole 135 located above is in contact with the first reference hole 133 below the corresponding first reference point, and the first slot hole 135 located below is in contact with the first reference hole 133 above the corresponding first reference point When contacting, it indicates that the expansion and contraction coefficient of the milling machine is too small at this time, and then the technical problem of the small expansion and contraction coefficient of the milling machine is corrected by increasing the expansion and contraction coefficient of the milling machine.

In an optional exemplary embodiment, a plurality of second reference points are taken in the effective area 11, and a plurality of second reference holes 111 are opened around each second reference point; When the coefficients all meet the preset requirements, the second slot holes 112 are opened in the effective area 11 based on each second reference point. It should be noted that, specifically, in this embodiment, when the first reference hole 133 is opened in the frame region 13 , the second reference hole 111 is also opened in the effective region 11 . After the first slot 135 is opened, determine whether there is a problem with the positioning parameters and expansion and contraction coefficient of the milling machine according to the appearance of the first slot 135. If the positioning parameters and expansion and contraction coefficient of the milling machine meet the requirements, it will be opened in the effective area 11. The second slot 112 . If the positioning parameters or expansion and contraction coefficient of the milling machine do not meet the requirements, adjust the milling machine according to the specific situation to meet the requirements, and then process the second slot 112 in the effective area 11 to ensure the accuracy of the second slot 112 .

Specifically, in this embodiment, the distance between the edges of the first reference hole 133 and the first slot hole 135 in the frame area 13 can be set to be the same as the distance between the second slot hole 112 and the second slot hole 112 in the effective area 11 . The allowable value of the error between the reference holes 111, for example, if the distance between the second slot hole 112 and the second reference hole 111 is set to 2.54mm, the allowable error value is ±0.102mm, then the first slot The distance between each of the first reference holes 133 around the hole 135 and the distance between them is set to 0.102 mm, then in the process of processing the first slotted hole 135, if there is at least one first reference hole 133 around the first slotted hole 135 and its periphery Contact, it is determined that the deviation of the milling machine is greater than the error range, and then the milling machine is adjusted at this time to correct the above problems. At the same time, whether the first slot hole 135 and the first reference hole 133 are in contact can be clearly observed, and it can be known whether there is a problem that the deviation exceeds the preset range without using a measuring ruler, thereby further improving the work efficiency of the detection process. .

In an optional exemplary embodiment, it also includes: removing the frame area 13 . It should be noted that, specifically, in this embodiment, the frame area 13 can be removed. After the second slot hole 112 is set in the effective area 11, the processing of the effective area 11 is completed. The frame area 13 is removed.

Exemplarily, after removing the frame area 13 for detection, the distance between the second slot hole 112 and the second reference hole 111 in the effective area 11 can be measured to further ensure that the position of the second slot hole 112 is correct. accuracy.

In an optional exemplary embodiment, the first reference hole 133 is a first blind hole 1331 or a first through hole 1333 ; the second reference hole 111 is a second blind hole 1111 or a second through hole 1113 . It should be noted that, in this embodiment, the first reference hole 133 may be the first blind hole 1331 or the first through hole 1333 , that is to say, the first reference hole 133 may be set as the first reference hole 133 according to the specific needs of the user The type of holes required can be blind holes or through holes. Similarly, the second reference hole 111 is a second blind hole 1111 or a second through hole 1113 . The second reference hole 111 can be set to the type of hole required by the user according to the specific needs of the user, which can be a blind hole or a through hole.

In an optional exemplary embodiment, the first reference hole 133 includes a first blind hole 1331 and a first through hole 1333, a plurality of first blind holes 1331 and a plurality of first through holes 1333 are alternately arranged; the second reference hole 111 includes a second blind hole 1111 and a second through hole 1113 . It should be noted that, in this embodiment, the first reference hole 133 includes a first blind hole 1331 and a first through hole 1333 , and a plurality of first blind holes 1331 and a plurality of first through holes 1333 are alternately arranged. It can be understood that the specific types of the first reference hole 133 and the second reference hole 111 are not limited here, and can be adjusted adaptively according to the specific needs of the user.

Exemplarily, two first reference holes 133 may also be provided, and one first reference hole 133 is respectively provided on the opposite side of the first slotted hole 135 , and each first reference hole 133 includes a first blind hole 1331 . and a first through hole 1333 . Exemplarily, the distance between the first blind hole 1331 and the first slot hole 135 is set to 0.102 mm. The distance between the first through hole 1333 and the first slot hole 135 is set to 0.127 mm.

It can be understood that the specific number of the first reference holes 133 is not limited here. In other specific embodiments, the first reference holes 133 can also include two first blind holes 1331 and one first reference hole 133 according to the needs of users. The first through hole 1333 . Four first reference holes 133 are arranged around the first slot hole 135 in this embodiment. Specifically, one first through hole 1333 is arranged above, below, on the left and right of the first slot hole 135 , and Two first blind holes 1331 are disposed between two adjacent first through holes 1333 .

Exemplarily, the printed circuit board is a rectangular board; at least one first reference point is taken on each of the four sides of the frame area 13 . It should be noted that the printed circuit board is a rectangular board; and at least one first reference point is taken on each of the four sides of the frame area 13 to ensure the accuracy of the test results. It can be understood that the specific shape of the printed circuit board is not limited here. In other specific embodiments, it can be set to other shapes according to the specific needs of users, such as pentagon, circle, or ellipse, etc. . At the same time, the number of the first reference points of the frame area 13 is not limited in this application. In this embodiment, the number of the first reference points can be set to more than four, or two can be set according to the actual needs of users. one, three, etc.

The present disclosure also provides a printed circuit board, including an effective area 11 in the middle and a frame area 13 to be removed surrounding the effective area 11; the frame area 13 is provided with positioning holes 131 and at least two detection hole arrays 132, the detection holes The array 132 includes a plurality of first reference holes 133 and a first slot hole 135 . The plurality of first reference holes 133 are symmetric with the first reference point, and the first slot holes 135 are opened with the first reference point as a reference. It should be noted that the printed circuit board provided by the present disclosure is produced by the aforementioned manufacturing method, and thus also has the aforementioned technical effects.

In an optional exemplary embodiment, the effective area 11 includes a plurality of second reference holes 111 and second slot holes 112 , and the second reference holes 111 and the second slot holes 112 are arranged at intervals.

In an optional exemplary embodiment, the first reference hole 133 includes a first blind hole 1331 and a first through hole 1333, and the first blind hole 1331 and the first through hole 1333 are alternately arranged; the second reference hole 111 includes a second The blind hole 1111 and the second through hole 1113; and/or, the distance between the first reference hole 133 and the first slot hole 135 is 0 to 0.102 mm. It should be noted that the specific distance between the first reference hole 133 and the first slot hole 135 is not limited here. In other specific embodiments, it can be set to other values according to the needs of users. The setting may be less than or equal to the allowable error value of the distance between the edge of the second slot hole 112 and the edge of the second reference hole 111 in the effective area 11 .

Exemplarily, the printed circuit board is a rectangular board, and each side of the frame area 13 is provided with at least one detection hole array 132 .

Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, but not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand: It is still possible to modify the technical solutions recorded in the foregoing embodiments, or to perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention. .

In addition, it should be noted that each specific technical feature described in the above-mentioned specific implementation manner may be combined in any suitable manner under the circumstance that there is no contradiction. In order to avoid unnecessary repetition, the present invention will not describe various possible combinations.

Claims (14)

1. A method for manufacturing a printed circuit board, the printed circuit board comprising an effective area at the center and a frame area surrounding the effective area, characterized in that, comprising: At least two positioning holes are opened on the frame area; positioning the printed circuit board through the positioning hole; Take at least two first reference points in the frame area, A plurality of first reference holes are opened around each of the first reference points, and all the first reference holes around each of the first reference points are symmetrical with respect to the center of the corresponding first reference point; Taking each of the first reference points as a reference, a plurality of first slot holes corresponding to each of the first reference points one-to-one are opened in the frame area with a milling machine; When the first slotted hole is in contact with at least one of the first reference holes, the positioning parameter or expansion and contraction coefficient of the milling machine is adjusted. 2 . The manufacturing method according to claim 1 , wherein when the first slotted hole is in contact with at least one of the first reference holes, the positioning parameters or expansion and contraction coefficients of the milling machine are adjusted, specifically comprising: 3 . : When each of the first slot holes and the corresponding first reference holes are in contact along the same direction, adjust the origin position of the milling machine; When each of the first slot holes is in contact with the adjacent first reference holes on the inner side or outer side thereof, the pre-configured expansion and contraction coefficient of the milling machine is adjusted. 3. The manufacturing method according to claim 2, wherein the contacting of the first slot hole and the first reference hole along the same direction comprises: At least one of the first reference holes is provided above, below, to the left and to the right of each of the first reference points; When each of the first slot holes is in contact with the first reference hole above the corresponding first reference point, adjust the origin position of the milling machine downward; When each of the first slot holes is in contact with the first reference hole below the corresponding first reference point, adjust the origin position of the milling machine upward; When each of the first slot holes is in contact with the first reference hole on the left side of the corresponding first reference point, adjust the origin position of the milling machine to the right; When each of the first slot holes is in contact with the first reference hole on the right side of the corresponding first reference point, the origin position of the milling machine is adjusted to the left. 4. The manufacturing method according to claim 2, wherein at least one of the first reference holes is provided above, below, on the left and right sides of each of the first reference points; When the first slot hole located above is in contact with the first reference hole above the corresponding first reference point, and the first slot hole located below is in contact with the first reference hole corresponding to the first reference point When the reference hole is in contact, the expansion and contraction coefficient of the milling machine is reduced; When the first slot hole located above is in contact with the first reference hole below the corresponding first reference point, and the first slot hole located below is above the first reference point corresponding to the first slot hole When the reference hole is in contact, the expansion and contraction coefficient of the milling machine is increased. 5. The manufacturing method according to claim 1, further comprising: taking a plurality of second reference points in the effective area, A plurality of second reference holes are opened around each of the second reference points, When both the positioning and the expansion and contraction coefficient of the printed circuit board meet preset requirements, a second slot hole is opened in the effective area based on each of the second reference points. 6 . The manufacturing method according to claim 5 , further comprising: removing the frame area. 7 . 7 . The manufacturing method according to claim 5 , wherein the first reference hole is a first blind hole or a first through hole; and the second reference hole is a second blind hole or a second through hole. 8 . 8 . The manufacturing method according to claim 5 , wherein the first reference hole comprises a first blind hole and a first through hole, a plurality of the first blind hole and a plurality of the first through hole alternate setting; The second reference hole includes a second blind hole and a second through hole. 9 . The manufacturing method according to claim 8 , wherein the printed circuit board is positioned on a laser device through the positioning hole, and the first blind hole and the second blind hole are fabricated through the laser device. 10 . Blind hole; The printed circuit board is positioned on a drilling machine through the positioning hole, and the first through hole and the second through hole are formed through the drilling machine. 10. The manufacturing method according to any one of claims 1-9, wherein the printed circuit board is a rectangular board; At least one of the first reference points is taken on each of the four sides of the frame area. 11. A printed circuit board, characterized by comprising an effective area in the middle and a frame area to be removed surrounding the effective area; The frame area is provided with positioning holes and at least two detection hole arrays, the detection hole arrays include a plurality of first reference holes and a first slot hole, and the plurality of first reference holes are symmetrical with the center of the first reference point, The first slot hole is opened on the basis of the first reference point. 12 . The printed circuit board according to claim 11 , wherein the effective area comprises a plurality of second reference holes and second slot holes, and the second slot holes and the second reference holes are arranged at intervals. 13 . 13. The printed circuit board according to claim 12, wherein the first reference hole comprises a first blind hole and a first through hole, and the first blind hole and the first through hole are alternately arranged; The second reference hole includes a second blind hole and a second through hole; and/or, The distance between the first reference hole and the first slot hole is 0 to 0.102 mm. 14 . The printed circuit board according to claim 11 , wherein the printed circuit board is a rectangular board, and each side of the frame area is provided with at least one of the detection holes. 15 . array.

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