CN108556045A - A kind of method in drill straight chamfered groove hole - Google Patents
A kind of method in drill straight chamfered groove hole Download PDFInfo
- Publication number
- CN108556045A CN108556045A CN201810186123.7A CN201810186123A CN108556045A CN 108556045 A CN108556045 A CN 108556045A CN 201810186123 A CN201810186123 A CN 201810186123A CN 108556045 A CN108556045 A CN 108556045A
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- China
- Prior art keywords
- slot
- hole
- right angle
- knife
- cutting edge
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26F—PERFORATING; PUNCHING; CUTTING-OUT; STAMPING-OUT; SEVERING BY MEANS OTHER THAN CUTTING
- B26F1/00—Perforating; Punching; Cutting-out; Stamping-out; Apparatus therefor
- B26F1/16—Perforating by tool or tools of the drill type
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26F—PERFORATING; PUNCHING; CUTTING-OUT; STAMPING-OUT; SEVERING BY MEANS OTHER THAN CUTTING
- B26F2210/00—Perforating, punching, cutting-out, stamping-out, severing by means other than cutting of specific products
- B26F2210/08—Perforating, punching, cutting-out, stamping-out, severing by means other than cutting of specific products of ceramic green sheets, printed circuit boards and the like
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- Life Sciences & Earth Sciences (AREA)
- Forests & Forestry (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
Abstract
The invention discloses a kind of methods in drill straight chamfered groove hole, include the following steps：First an aperture is bored at the right angle intersection of right angle slot corresponding position to be less than except the preset hole for criticizing cutting edge of a knife or a sword hole；Then the first slot is drilled out on one side in right angle slot corresponding position；The second slot then is drilled out in the another side of right angle slot corresponding position, the second slot and the first slot are connected to form right angle slot；Finally bored respectively except batch cutting edge of a knife or a sword hole at the both sides of right angle slot and right angle intersection.The method of the present invention can be effectively improved right angle slot intersection aperture burr and hole inner burr problem, improve production efficiency and first-time qualification rate.
Description
Technical field
The present invention relates to printed wiring board manufacture technology fields, and in particular to a kind of method in drill straight chamfered groove hole.
Background technology
The fabrication processing of wiring board is：Sawing sheet → making internal layer circuit → pressing → drilling → heavy copper → electric plating of whole board
→ make outer-layer circuit → making solder mask → surface treatment → molding → FQC；In above-mentioned drilling operating, for some needs
The plank in drill straight chamfered groove hole often bores both sides slot, the connected shape of slot on both sides when designing drill straight chamfered groove hole respectively successively
Then slot at a right angle removes the slot for boring another side again because of the slot on its subdrilling one side, two slot connecting places are because bore first
Sky has been bored when a slot, causes brill nozzle when boring second slot that can skid, intersection there just will appear burr
It is brought out with the direction of rotation for boring nozzle, aperture batch cutting edge of a knife or a sword problem, existing solution is formed after subsequently heavy copper, electric plating of whole board process
Certainly method is by boring one except flash removed is removed in batch cutting edge of a knife or a sword hole, but due to right angle slot intersection in right angle slot intersection again
Less than one aperture is drilled through, easily causing brill nozzle to skid can not bore by the burr of intersection, need to move back drilling again and carry out manual repair
Reason seriously affects FQC first-time qualification rates and visitor's inspection satisfaction, has seriously affected production efficiency and friendship phase.
Invention content
There is drawbacks described above in the present invention, the method for providing a kind of drill straight chamfered groove hole for existing line plate, the party
Method can be effectively improved right angle slot intersection aperture burr and hole inner burr problem, improve production efficiency and first-time qualification rate.
In order to solve the above technical problem, the present invention provides a kind of methods in drill straight chamfered groove hole, include the following steps：
S1, first one aperture of brill is less than the preset hole except batch cutting edge of a knife or a sword hole at the right angle intersection of right angle slot corresponding position；
S2 and then the first slot is drilled out on one side in right angle slot corresponding position；
S3, then in the another side of right angle slot corresponding position the second slot is drilled out, the second slot is connected with the first slot
Form right angle slot；
S4, it is finally bored respectively except batch cutting edge of a knife or a sword hole at the both sides of right angle slot and right angle intersection.
Preferably, in step S1, the preset hole intersects with the inside at right angle intersection.
Preferably, in step S1, the aperture ratio of the preset hole is except the small 0.1mm in aperture for criticizing cutting edge of a knife or a sword hole.
Preferably, in step S4, three are bored except the drilling sequences in batch cutting edge of a knife or a sword hole from one side of right angle slot to another side sequence
Go out.
Preferably, in step S4, batch cutting edge of a knife or a sword hole of removing at right angle intersection is overlapped with preset hole, and the two center of circle is identical.
Preferably, in step S4, batch cutting edge of a knife or a sword hole of removing on right angle slot both sides is intersected with batch cutting edge of a knife or a sword hole of removing at right angle intersection respectively.
Preferably, in step S4, when the first slot and the second slot it is of same size when, it is described except the aperture in batch cutting edge of a knife or a sword hole is small
In the width of the right angle slot；It is described except the hole for criticizing cutting edge of a knife or a sword hole or when the width of the first slot is more than the width of the second slot
Diameter is less than the width of second slot；It is described except batch cutting edge of a knife or a sword hole or when the width of the first slot is less than the width of the second slot
Aperture be less than first slot width.
Compared with prior art, the present invention has the advantages that：
The present invention bores a preset hole by elder generation at the right angle intersection of post-production right angle slot corresponding position, by right angle
The plank of intersection removes, solve when boring the second slot bore nozzle skid make burr with brill nozzle direction of rotation and asking for taking out of
Topic then bores one at the both sides of right angle slot and right angle intersection except batch cutting edge of a knife or a sword hole, effectively removes the hair at right angle intersection respectively
Thorn solves the problems, such as that brill removes brill nozzle when criticizing cutting edge of a knife or a sword hole and skids and can not remove burr；And when boring three except cutting edge of a knife or a sword hole is criticized, by trough with straight angle
The one side in hole is drilled out to another side sequence, in this way can be forced burr to a direction to be completely cut through, be further ensured that
Burr removal is clean；The method of the present invention can be effectively improved right angle slot intersection aperture burr and hole inner burr problem, improve
Production efficiency and first-time qualification rate.
Description of the drawings
Fig. 1 is the schematic diagram in drill straight chamfered groove hole.
Specific implementation mode
In order to more fully understand the technology contents of the present invention, below in conjunction with specific embodiment to the technical side of the present invention
Case is described further and illustrates.
Embodiment 1
A kind of production method of wiring board shown in the present embodiment, the especially method in one such drill straight chamfered groove hole,
Include following treatment process successively：
Sawing sheet：Core plate is outputed by jigsaw size 320mm × 420mm, core plate plate thickness is 1mm, the outer layer copper face thickness of core plate
It is 1OZ.
(2), internal layer circuit (negative film technique) is made：According to figure location hole, with the coating sense of vertical application machine on core plate
Light film, 8 μm of the film thickness monitoring of light-sensitive surface complete interior layer line using Full-automatic exposure machine with 5-6 lattice exposure guide rule (21 lattice exposure guide rule)
Road exposes, and inner line figure is formed after developed；Internal layer etches, and the core plate after exposure imaging is etched internal layer circuit, interior
Wide measure of layer line is 3mil；Then internal layer AOI checks the defects of opening short circuit, circuit notch, circuit pin hole of internal layer circuit, has
Defect scraps processing, and flawless product goes out to downstream.
(3), it presses：Brown speed carries out brown according to bottom copper copper thickness, by outer copper foil, prepreg, core plate, semi-solid preparation
Piece, outer copper foil overlap successively as required, then select lamination appropriate to be pressed according to plate Tg, form production
Plate.
(4) outer layer drills：Drilling processing is carried out to production plate using borehole data, the hole bored includes right angle slot, such as
Shown in Fig. 1, the boring method of right angle slot includes the following steps：
S1, first one aperture of brill is less than except batch cutting edge of a knife or a sword hole at the right angle intersection of right angle slot corresponding position on production plate 5
Preset hole 1；
S2 and then the first slot 2 is drilled out on one side in right angle slot corresponding position；
S3, then in the another side of right angle slot corresponding position the second slot 3, the second slot 3 and 1 phase of the first slot are drilled out
Company forms right angle slot；
S4, it is finally bored respectively except batch cutting edge of a knife or a sword hole 4 at the both sides of right angle slot and right angle intersection.
Wherein, preset hole 1 intersects with the inside at right angle intersection, and the plank at right angle intersection is removed, and solves boring the
The problem of nozzle skidding makes burr be taken out of with the direction of rotation for boring nozzle is bored when two slots.
Wherein, batch cutting edge of a knife or a sword hole of removing at right angle intersection is overlapped with preset hole, and the center of circle of the two is identical, the aperture ratio of preset hole 1
Except the small 0.1mm in aperture in batch cutting edge of a knife or a sword hole 4.
Wherein, in step S4, three are drilled out except the drilling sequences in batch cutting edge of a knife or a sword hole from one side of right angle slot to another side sequence,
I.e. subdrilling right angle slot on one side on except batch cutting edge of a knife or a sword hole (can be on the first slot or the second slot except batch cutting edge of a knife or a sword hole), then drill straight
Batch cutting edge of a knife or a sword hole is removed in angle intersection, and batch cutting edge of a knife or a sword hole is removed on the another side of last drill straight chamfered groove hole；Remove batch cutting edge of a knife or a sword hole point in right angle slot both sides
Cutting edge of a knife or a sword hole is not criticized with removing at right angle intersection to intersect, effectively remove the burr at right angle intersection, solve to bore except brill nozzle is beaten when criticizing cutting edge of a knife or a sword hole
The problem of sliding and burr can not being removed.
Wherein, in step S4, when the first slot and the second slot it is of same size when, except the aperture in batch cutting edge of a knife or a sword hole is less than right angle
The width of slot；Or when the width of the first slot is more than the width of the second slot, except the aperture in batch cutting edge of a knife or a sword hole is less than the second slot
Width；Or when the width of the first slot is less than the width of the second slot, except the aperture in batch cutting edge of a knife or a sword hole is less than the width of the first slot
Degree.
(5), heavy copper:The hole metallization on production plate, backlight is set to test 10 grades, the heavy copper thickness in hole is 0.5 μm.
(6), electric plating of whole board：According to the prior art and by design requirement to production plate carry out electric plating of whole board, thicken plate face and
Layers of copper in hole.
(7), outer-layer circuit makes (positive blade technolgy)：Outer graphics shift, luxuriant and rich with fragrance using Full-automatic exposure machine and positive circuit
Woods completes outer-layer circuit exposure with 5-7 lattice exposure guide rule (21 lattice exposure guide rule), developed, and outer-layer circuit figure is formed on production plate
Shape；Outer graphics are electroplated, then the copper facing and tin plating respectively on production plate, and copper facing is the current density electric plating of whole board with 1.8ASD
60min, tin plating is that 10min, 3-5 μm of tin thickness is electroplated with the current density of 1.2ASD；Then it moves back film successively again, etch and move back tin,
Outer-layer circuit is etched on production plate；Outer layer AOI, then check outer-layer circuit opens short circuit, circuit notch, circuit pin hole etc.
Defect, defective to scrap processing, flawless product goes out to downstream.
(8), welding resistance, silk-screen character：Solder mask and silk-screen are made according to the prior art and by design requirement on production plate
Character.
(9), surface treatment (heavy nickel gold)：It is surface-treated, hinders according to the prior art and by design requirement on production plate
The copper face for welding windowing position and the through-hole for needing back drill lead to the principles of chemistry, and uniform deposition centainly requires the nickel layer and gold of thickness in layers of copper
Layer.
(10), it is molded：According to the prior art and design requirement gong shape is pressed, circuit is made in the +/- 0.05mm of external form tolerance
Plate.
(11), electric performance test：The electric property for detecting wiring board detects qualified wiring board and enters next processing
Link；
(12), final inspection：Appearance, hole copper thickness, thickness of dielectric layers, green oil thickness, the internal layer copper thickness etc. of finished product are taken a sample test respectively,
Qualified product can shipment.
It is provided for the embodiments of the invention technical solution above to be described in detail, specific case used herein
The principle and embodiment of the embodiment of the present invention are expounded, the explanation of above example is only applicable to help to understand this
The principle of inventive embodiments；Meanwhile for those of ordinary skill in the art, embodiment according to the present invention, in specific embodiment party
There will be changes in formula and application range, in conclusion the content of the present specification should not be construed as limiting the invention.
Claims (7)
1. a kind of method in drill straight chamfered groove hole, which is characterized in that include the following steps：
S1, first one aperture of brill is less than the preset hole except batch cutting edge of a knife or a sword hole at the right angle intersection of right angle slot corresponding position；
S2 and then the first slot is drilled out on one side in right angle slot corresponding position；
S3, then in the another side of right angle slot corresponding position the second slot is drilled out, the second slot is connected to form with the first slot
Right angle slot；
S4, it is finally bored respectively except batch cutting edge of a knife or a sword hole at the both sides of right angle slot and right angle intersection.
2. the method in drill straight chamfered groove according to claim 1 hole, which is characterized in that in step S1, the preset hole with it is straight
Intersect the inside of angle intersection.
3. the method in drill straight chamfered groove according to claim 1 hole, which is characterized in that in step S1, the hole of the preset hole
Diameter is smaller 0.1mm than the aperture except batch cutting edge of a knife or a sword hole.
4. the method in drill straight chamfered groove according to claim 1 hole, which is characterized in that in step S4, three except batch cutting edge of a knife or a sword hole
Drilling sequences are drilled out from one side of right angle slot to another side sequence.
5. the method in drill straight chamfered groove according to claim 4 hole, which is characterized in that in step S4, removing at right angle intersection
It criticizes cutting edge of a knife or a sword hole to overlap with preset hole, the two center of circle is identical.
6. the method in drill straight chamfered groove according to claim 4 hole, which is characterized in that in step S4, right angle slot both sides
Except batch cutting edge of a knife or a sword hole is intersected with batch cutting edge of a knife or a sword hole of removing at right angle intersection respectively.
7. the method in drill straight chamfered groove according to claim 1 hole, which is characterized in that in step S4, when the first slot and
Two slots it is of same size when, the aperture except batch cutting edge of a knife or a sword hole is less than the width of the right angle slot；Or the width when the first slot
When degree is more than the width of the second slot, the aperture except batch cutting edge of a knife or a sword hole is less than the width of second slot；Or when the first slot
Width when being less than the width of the second slot, the aperture except batch cutting edge of a knife or a sword hole is less than the width of first slot.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810186123.7A CN108556045A (en) | 2018-03-07 | 2018-03-07 | A kind of method in drill straight chamfered groove hole |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810186123.7A CN108556045A (en) | 2018-03-07 | 2018-03-07 | A kind of method in drill straight chamfered groove hole |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108556045A true CN108556045A (en) | 2018-09-21 |
Family
ID=63532402
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810186123.7A Pending CN108556045A (en) | 2018-03-07 | 2018-03-07 | A kind of method in drill straight chamfered groove hole |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108556045A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109862702A (en) * | 2019-03-21 | 2019-06-07 | 清能德创电气技术（北京）有限公司 | A kind of interior angle processing preparation method at right angle by pcb board |
| CN110434931A (en) * | 2019-06-27 | 2019-11-12 | 珠海崇达电路技术有限公司 | A method of improving irregularly-shaped hole connection position aperture burr |
| CN111531633A (en) * | 2020-04-13 | 2020-08-14 | 广州兴森快捷电路科技有限公司 | Slotted hole connecting hole processing method and device, computer equipment and storage medium |
| CN112616258A (en) * | 2021-01-12 | 2021-04-06 | 广东世运电路科技股份有限公司 | Circuit board negative film and processing method thereof |
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| JP2002120197A (en) * | 2000-10-11 | 2002-04-23 | Matsushita Electric Ind Co Ltd | Method of manufacturing circuit forming board, and data for manufacturing circuit forming board |
| CN105307400A (en) * | 2015-10-27 | 2016-02-03 | 大连崇达电路有限公司 | Processing method of square slot of printed wiring board |
| CN105430910A (en) * | 2015-11-23 | 2016-03-23 | 梅州市志浩电子科技有限公司 | Printed circuit board overlapped groove processing method |
| CN105430917A (en) * | 2015-11-30 | 2016-03-23 | 江门崇达电路技术有限公司 | Method for fabricating connected slot in PCB |
| CN106385766A (en) * | 2016-11-02 | 2017-02-08 | 深圳市深联电路有限公司 | PCB special-shaped hole making method for removing burrs |
| CN106455331A (en) * | 2016-11-12 | 2017-02-22 | 广东科翔电子科技有限公司 | Burr preventive forming method for splayed holes of PCB (printed circuit boards) |
| CN106455323A (en) * | 2016-08-31 | 2017-02-22 | 奥士康精密电路（惠州）有限公司 | Printed circuit board splayed hole burring prevention molding method |
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Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002120197A (en) * | 2000-10-11 | 2002-04-23 | Matsushita Electric Ind Co Ltd | Method of manufacturing circuit forming board, and data for manufacturing circuit forming board |
| CN105307400A (en) * | 2015-10-27 | 2016-02-03 | 大连崇达电路有限公司 | Processing method of square slot of printed wiring board |
| CN105430910A (en) * | 2015-11-23 | 2016-03-23 | 梅州市志浩电子科技有限公司 | Printed circuit board overlapped groove processing method |
| CN105430917A (en) * | 2015-11-30 | 2016-03-23 | 江门崇达电路技术有限公司 | Method for fabricating connected slot in PCB |
| CN106455323A (en) * | 2016-08-31 | 2017-02-22 | 奥士康精密电路（惠州）有限公司 | Printed circuit board splayed hole burring prevention molding method |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109862702A (en) * | 2019-03-21 | 2019-06-07 | 清能德创电气技术（北京）有限公司 | A kind of interior angle processing preparation method at right angle by pcb board |
| CN110434931A (en) * | 2019-06-27 | 2019-11-12 | 珠海崇达电路技术有限公司 | A method of improving irregularly-shaped hole connection position aperture burr |
| CN111531633A (en) * | 2020-04-13 | 2020-08-14 | 广州兴森快捷电路科技有限公司 | Slotted hole connecting hole processing method and device, computer equipment and storage medium |
| CN112616258A (en) * | 2021-01-12 | 2021-04-06 | 广东世运电路科技股份有限公司 | Circuit board negative film and processing method thereof |
| CN112616258B (en) * | 2021-01-12 | 2022-06-17 | 广东世运电路科技股份有限公司 | Circuit board negative film and processing method thereof |
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Application publication date: 20180921 |