CN104254208A - Manufacturing method of short slot hole of circuit board - Google Patents
Manufacturing method of short slot hole of circuit board Download PDFInfo
- Publication number
- CN104254208A CN104254208A CN201410372145.4A CN201410372145A CN104254208A CN 104254208 A CN104254208 A CN 104254208A CN 201410372145 A CN201410372145 A CN 201410372145A CN 104254208 A CN104254208 A CN 104254208A
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- slotted eye
- short slotted
- slot hole
- short slot
- short
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 30
- 238000000034 method Methods 0.000 claims description 15
- 241001074085 Scophthalmus aquosus Species 0.000 claims description 13
- 230000001055 chewing effect Effects 0.000 claims description 10
- 235000015111 chews Nutrition 0.000 claims description 2
- 238000005553 drilling Methods 0.000 abstract description 4
- 230000007547 defect Effects 0.000 abstract 1
- 230000002950 deficient Effects 0.000 description 9
- 230000000694 effects Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
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- Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
Abstract
The invention relates to a manufacturing method of a short slot hole of a circuit board. The manufacturing method comprises the following steps of firstly, printing a to-be-manufactured short slot hole pattern on the circuit board; then, drilling circular guide holes respectively in the two ends of the to-be-manufactured short slot hole pattern, wherein the circle center of each circuit guide hole is positioned in the centerline of the short slot hole pattern, and is internally tangential with the tail end of the short slot hole pattern; finally, selecting a second drill bit which has the same diameter with the short slot hole to drill holes. The manufacturing method has the advantages that by adjusting the drilling point of the drill bit, the deflection angle caused by the rotation of the drill bit is compensated, the deflection force and lateral movement of overlapping part during drilling are reduced, the accuracy of the short slot hole is improved, the problem of skewing of the short slot hole is effectively solved, the defect rate of the short slot hole is reduced, the quality problem caused by deformation of the short slot hole during processing is solved, the discard rate of the circuit board is reduced, the production cost of enterprises is reduced, the production efficiency is improved, and the competitiveness of enterprise is improved.
Description
Technical field
The invention belongs to wiring board processing and fabricating field, be specifically provided with the short slotted eye manufacture method of a kind of wiring board.
Background technology
Along with the fast development of electronic technology and integrated circuit, people constantly pursue miniaturization and the intellectuality of electronic product, the parameters of the making of wiring board requires also more and more higher, and wiring board is manufacturing in process the components and parts hole needing default various model and specification, and the quality that components and parts hole makes and precision directly affect the installation of components and parts, its short-and-medium slotted eye is the one in components and parts hole.Existing short slotted eye is long is divided into flute length and groove width, and the pass both it is the groove width that flute length is less than 2 times.Because present wiring board is more and more meticulousr, the short slotted eye bored is more and more less, so easily occur that in manufacturing process blocking, skew and distortion etc. affect the quality of wiring board, and these problems are not easy to check before dispatching from the factory, easily cause defective products just discovery in client's use procedure, client cannot mounting related components, the unnecessary trouble caused, also add the defective products rate in production process simultaneously, add production cost, be unfavorable for enterprise development.
In order to change the quality of the short slotted eye of wiring board, improve the precision of product, wiring board manufacturing enterprise goes to attempt through diverse ways, go searching high efficiency, and produce the method for the short slotted eye of high-quality, but effect is not ideal, as arrangement of holing, reduce Impact direction, but DeGrain; Change and bore when chewing parameter and bore the structure of chewing, manufacturing cost is too high, and bores and chew and belong to running stores, increases business economic burden; When adopting drillable length to compensate, because deviation is excessive, cause being difficult to compensate, add the defective products rate of wiring board on the contrary.Simultaneously, the manufacture method of the short slotted eye of a kind of pcb board is disclosed in Chinese invention patent application, disclose the short slotted eye manufacture method of pcb board in application publication number CN 102009198 A, first offer two pilot holes, then carry out superposition boring, adopt this production method when making short slotted eye because High Rotation Speed chewed by brill, and bore when chewing stressed and drive wiring board to move, cause deviation, easily tilt or the groove of excessive, short slotted eye of holing rough, as shown in Figure 1, the generation of defective products is caused.
Therefore how to go from multiple angles the manufacture method changing the short slotted eye of wiring board, and do not need to transform in a large number existing production equipment, improve precision and the yields of product, reduce production cost, improve the competitiveness of wiring board manufacturing enterprise, become the task of top priority.
Summary of the invention
In view of this, the technical problem to be solved in the present invention is a kind of reduction defective products rate, improves the short slotted eye manufacture method of wiring board of quality.
In order to solve the problems of the technologies described above, the present invention adopts following scheme to realize: the short slotted eye manufacture method of a kind of wiring board, comprises the following steps:
(1) print out short slotted eye figure to be produced at wiring board, two limits up and down in the flute length direction of short slotted eye figure are parallel to each other;
(2) the guiding hole drill selecting diameter to be less than slotted eye width is chewed, and first gets out a circular bullport at short slotted eye figure two ends, and the center of circle of this circular bullport is positioned at the position of center line of short slotted eye figure, circular bullport respectively with the end inscribe of short slotted eye figure;
(3) select consistent with short slotted eye diameter second to bore to chew and hole, second bores and chews lower cutter when boring the hole at two ends, second bore chew boring respectively with the end inscribe of short slotted eye figure, it is 55,000 revs/min ~ 65,000 revs/min that rotating speed controls.
(4) employing waits the mode of point spacing to drill through centre position, second brill is chewed when lower cutter, the direction of rotation of chewing is bored according to second, the deflection angle produced, biasing force and skew are revised, when second bore chew rotate into clockwise direction time, second bores the lower cutter position chewed, and to be positioned at the position of center line of short slotted eye figure on the lower side; When second bore chew as counterclockwise rotating time, second bores the lower cutter position chewed, and to be positioned at the position of center line of short slotted eye figure on the lower side;
(5) repeat, in step (4), in short slotted eye, to carry out the repeatedly boring of decile spacing boring.
Wherein, the diameter of the circular bullport described in step (2) groove width that is less than 0.5 times.
Wherein, hole drill is guided to chew rotating speed 30,000 revs/min ~ 35,000 revs/min described in step (2).
Wherein, the number of times of repeatedly holing described in step (5) is 5 times or 9 times
Compared with prior art, the present invention bores the position of lower cutter of chewing by adjustment, make to rotate the deviation angle caused be compensated because boring to chew, the biasing force of lap when reducing boring and sidesway, improve the precision of short slotted eye, efficiently solve the problem that short slotted eye is crooked, decrease the fraction defective of short slotted eye, avoid the quality problem that the deformation in the course of processing of short slotted eye causes, decrease the scrappage of wiring board, reduce enterprise's production cost, improve production efficiency, strengthen the competitiveness of enterprise.
Accompanying drawing explanation
The stressed deflection figure that Fig. 1 exists when being and holing in prior art.
Embodiment
In order to allow those skilled in the art understand technical scheme of the present invention better, below in conjunction with accompanying drawing, the present invention is further elaborated.
The short slotted eye manufacture method of a kind of wiring board, comprises the following steps:
(1) print out short slotted eye figure to be produced at wiring board, two limits up and down in the flute length direction of short slotted eye figure are parallel to each other, and two ends are arc-shaped.
(2) the guiding hole drill selecting diameter to be less than slotted eye width is chewed, first a circular bullport is respectively got out at short slotted eye figure two ends, the center of circle of this circular bullport is positioned at the position of center line of short slotted eye figure, circular bullport respectively with the end inscribe of short slotted eye figure; In order to improve the guidance accuracy of circular bullport, the groove width that the diameter of described circular bullport is less than 0.5 times.In order to improve the effect of boring, hole drill is guided to chew rotating speed 30,000 revs/min ~ 35,000 revs/min.
(3) consistent with short slotted eye diameter second is selected to bore to chew and hole, when the hole at lower cutter brill two ends chewed by second brill, second bore chew boring respectively with the end inscribe of short slotted eye figure, it is 55,000 revs/min ~ 65,000 revs/min that rotating speed controls, and preferred rotating speed is 60,000 revs/min.
(4) when employing waits the mode of point spacing to drill through centre position, owing to holing in two ends, drill through middle position lap position more, and the High Rotation Speed when holing chewed by brill, easily produces deflection angle during boring, easily there is displacement and inclination, therefore need when second bores and chew boring to bore to chew to second to rotate the deflection angle, biasing force and the skew that produce and revise, preventing boring the deflecting force produced when chewing rotation makes wiring board produce displacement, causes bore error, causes the generation of defective products.In order to eliminate deflecting force, improve the precision of drilling holes on circuit board, when lower cutter chewed by the second brill, need to bore the direction of rotation of chewing according to second and adjust lower cutter position: when the second brill chew rotate into clockwise direction time, the position of center line deflection on the upper side toward short slotted eye figure is understood when boring chewed by second brill, cause boring that to chew the slotted eye got out on the upper side, produce defective products, therefore second boring the lower cutter position chewed to be positioned at the position of center line of short slotted eye figure on the lower side, chewing the problems such as the deflection angle of generation, biasing force and skew for overcoming the second brill; When the second brill is chewed as counterclockwise rotating, the position of center line deflection on the lower side toward short slotted eye figure is understood when boring chewed by second brill, cause boring that to chew the slotted eye got out on the lower side, produce defective products, therefore second boring the lower cutter position chewed to be positioned at the position of center line of short slotted eye figure on the upper side, chewing the problems such as the deflection angle of generation, biasing force and skew for overcoming the second brill; Wherein second bore the rotating speed chewed and control to be 55,000 revs/min ~ 65,000 revs/min, the second value of boring the position of center line of lower cutter position apart from short slotted eye figure chewed on the lower side or on the upper side is 0.001mm ~ 0.05mm.
(5) repeat, in step (4), in short slotted eye, to carry out the repeatedly boring of decile spacing boring.During central bore, after two ends boring and central bore position hole, improve the precision of short slotted eye, preferred number of drills is 5 times or 9 times, and the effect of boring is best.
In order to improve quality and quality, the thickness of selecting of wiring board is 0.55mm ~ 0.60mm, wherein the performance optimal of short slotted eye made of 0.57mm wiring board.
Above-described embodiment is only wherein specific implementation of the present invention, and it describes comparatively concrete and detailed, but therefore can not be interpreted as the restriction to the scope of the claims of the present invention.It should be pointed out that for the person of ordinary skill of the art, without departing from the inventive concept of the premise, can also make some distortion and improvement, these apparent replacement forms all belong to protection scope of the present invention.
Claims (4)
1. the short slotted eye manufacture method of wiring board, is characterized in that, comprise the following steps:
(1) print out short slotted eye figure to be produced at wiring board, two limits up and down in the flute length direction of short slotted eye figure are parallel to each other;
(2) the guiding hole drill selecting diameter to be less than slotted eye width is chewed, and first gets out a circular bullport at short slotted eye figure two ends, and the center of circle of this circular bullport is positioned at the position of center line of short slotted eye figure, circular bullport respectively with the end inscribe of short slotted eye figure;
(3) select consistent with short slotted eye diameter second to bore to chew and hole, second bores and chews lower cutter when boring the hole at two ends, second bore chew boring respectively with the end inscribe of short slotted eye figure, it is 55,000 revs/min ~ 65,000 revs/min that rotating speed controls;
(4) employing waits the mode of point spacing to drill through centre position, second brill is chewed when lower cutter, the direction of rotation of chewing is bored according to second, the deflection angle produced, biasing force and skew are revised, when second bore chew rotate into clockwise direction time, second bores the lower cutter position chewed, and to be positioned at the position of center line of short slotted eye figure on the lower side; When second bore chew as counterclockwise rotating time, second bores the lower cutter position chewed, and to be positioned at the position of center line of short slotted eye figure on the lower side;
(5) repeat, in step (4), in short slotted eye, to carry out the repeatedly boring of decile spacing boring.
2. the short slotted eye manufacture method of wiring board according to claim 1, is characterized in that, the groove width that the diameter of the circular bullport described in step (2) is less than 0.5 times.
3. the short slotted eye manufacture method of wiring board according to claim 1, is characterized in that, guides hole drill to chew rotating speed 30,000 revs/min ~ 35,000 revs/min described in step (2).
4. the short slotted eye manufacture method of wiring board according to claim 1, is characterized in that, the number of times of repeatedly holing described in step (5) is 5 times or 9 times.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410372145.4A CN104254208B (en) | 2014-07-31 | 2014-07-31 | A kind of short slotted eye preparation method of wiring board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410372145.4A CN104254208B (en) | 2014-07-31 | 2014-07-31 | A kind of short slotted eye preparation method of wiring board |
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| Publication Number | Publication Date |
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| CN104254208A true CN104254208A (en) | 2014-12-31 |
| CN104254208B CN104254208B (en) | 2017-12-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410372145.4A Active CN104254208B (en) | 2014-07-31 | 2014-07-31 | A kind of short slotted eye preparation method of wiring board |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105744765A (en) * | 2016-03-15 | 2016-07-06 | 江门崇达电路技术有限公司 | Method for manufacturing short slot hole in PCB |
| CN106270602A (en) * | 2015-06-05 | 2017-01-04 | 大连崇达电路有限公司 | Printed circuit board flute length is less than the processing method of 1. 5 times of ultrashort slotted eyes of groove width |
| CN106604546A (en) * | 2016-11-12 | 2017-04-26 | 广东科翔电子科技有限公司 | Printed-circuit board short-slot slotted hole forming method |
| CN106714455A (en) * | 2016-08-31 | 2017-05-24 | 奥士康精密电路（惠州）有限公司 | Multilayer circuit board short groove formation method |
| CN110708896A (en) * | 2019-10-18 | 2020-01-17 | 生益电子股份有限公司 | PIN hole machining method and HDI board manufacturing method |
| CN111417261A (en) * | 2020-04-14 | 2020-07-14 | 高德（江苏）电子科技有限公司 | Method for improving tail deformation of short slotted hole in PCB processing |
| CN115023046A (en) * | 2022-05-24 | 2022-09-06 | 福建福强精密印制线路板有限公司 | Drilling method for improving short groove deviation |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007098502A (en) * | 2005-10-04 | 2007-04-19 | Elna Co Ltd | Oblong hole-machining method for printed circuit board |
| CN102009198A (en) * | 2010-10-14 | 2011-04-13 | 惠州中京电子科技股份有限公司 | Method for manufacturing PCB short slot |
| CN103170995A (en) * | 2013-04-18 | 2013-06-26 | 梅州市志浩电子科技有限公司 | Manufacture method of short slotted hole for printed circuit board |
| CN103862515A (en) * | 2014-03-07 | 2014-06-18 | 九江华祥科技股份有限公司 | Method for preparing short slotted hole in printed circuit board |
-
2014
- 2014-07-31 CN CN201410372145.4A patent/CN104254208B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007098502A (en) * | 2005-10-04 | 2007-04-19 | Elna Co Ltd | Oblong hole-machining method for printed circuit board |
| CN102009198A (en) * | 2010-10-14 | 2011-04-13 | 惠州中京电子科技股份有限公司 | Method for manufacturing PCB short slot |
| CN103170995A (en) * | 2013-04-18 | 2013-06-26 | 梅州市志浩电子科技有限公司 | Manufacture method of short slotted hole for printed circuit board |
| CN103862515A (en) * | 2014-03-07 | 2014-06-18 | 九江华祥科技股份有限公司 | Method for preparing short slotted hole in printed circuit board |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106270602A (en) * | 2015-06-05 | 2017-01-04 | 大连崇达电路有限公司 | Printed circuit board flute length is less than the processing method of 1. 5 times of ultrashort slotted eyes of groove width |
| CN105744765A (en) * | 2016-03-15 | 2016-07-06 | 江门崇达电路技术有限公司 | Method for manufacturing short slot hole in PCB |
| CN105744765B (en) * | 2016-03-15 | 2018-09-28 | 江门崇达电路技术有限公司 | A method of making short slot on PCB |
| CN106714455A (en) * | 2016-08-31 | 2017-05-24 | 奥士康精密电路（惠州）有限公司 | Multilayer circuit board short groove formation method |
| CN106604546A (en) * | 2016-11-12 | 2017-04-26 | 广东科翔电子科技有限公司 | Printed-circuit board short-slot slotted hole forming method |
| CN110708896A (en) * | 2019-10-18 | 2020-01-17 | 生益电子股份有限公司 | PIN hole machining method and HDI board manufacturing method |
| CN111417261A (en) * | 2020-04-14 | 2020-07-14 | 高德（江苏）电子科技有限公司 | Method for improving tail deformation of short slotted hole in PCB processing |
| CN115023046A (en) * | 2022-05-24 | 2022-09-06 | 福建福强精密印制线路板有限公司 | Drilling method for improving short groove deviation |
| CN115023046B (en) * | 2022-05-24 | 2024-08-20 | 福建福强精密印制线路板有限公司 | Drilling method for improving short groove deviation |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104254208B (en) | 2017-12-08 |
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Effective date of registration: 20210223 Address after: 226000 Haimen Economic and Technological Development Zone, Nantong City, Jiangsu Province, No. 999 Guangzhou Road Patentee after: Nantong Shenghong Technology Co.,Ltd. Address before: Xinqiao village Xingcheng science and Technology Park, Danshui Town, Huiyang District, Huizhou City, Guangdong Province Patentee before: VICTORY GIANT TECHNOLOGY (HUIZHOU) Co.,Ltd. |
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Effective date of registration: 20231120 Address after: Xinqiao village Xingcheng science and Technology Park, Danshui Town, Huiyang District, Huizhou City, Guangdong Province Patentee after: VICTORY GIANT TECHNOLOGY (HUIZHOU) Co.,Ltd. Address before: 226000 Haimen Economic and Technological Development Zone, Nantong City, Jiangsu Province, No. 999 Guangzhou Road Patentee before: Nantong Shenghong Technology Co.,Ltd. |
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