CN110677997B - Method for improving burrs of round hole and round hole intersection hole - Google Patents
Method for improving burrs of round hole and round hole intersection hole Download PDFInfo
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- CN110677997B CN110677997B CN201910912665.2A CN201910912665A CN110677997B CN 110677997 B CN110677997 B CN 110677997B CN 201910912665 A CN201910912665 A CN 201910912665A CN 110677997 B CN110677997 B CN 110677997B
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K3/00—Apparatus or processes for manufacturing printed circuits
- H05K3/0011—Working of insulating substrates or insulating layers
- H05K3/0044—Mechanical working of the substrate, e.g. drilling or punching
- H05K3/0047—Drilling of holes
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K2203/00—Indexing scheme relating to apparatus or processes for manufacturing printed circuits covered by H05K3/00
- H05K2203/02—Details related to mechanical or acoustic processing, e.g. drilling, punching, cutting, using ultrasound
- H05K2203/025—Abrading, e.g. grinding or sand blasting
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Drilling And Boring (AREA)
Abstract
The invention belongs to the technical field of PCB manufacturing, and particularly relates to a method for improving burrs of round holes and crossed holes of the round holes, which comprises the following steps: (1) drilling two crossed round holes with different apertures on the PCB by using a slotting tool; (2) drilling and repairing burr holes: the number of the burr trimming holes is two, the diameters of the burr trimming holes are respectively consistent with the diameters of the round holes, and the positions of the burr trimming holes deviate by 1mil from the round holes with the same diameter to the round holes with different diameters along the connecting line of the centers of the two round holes. The method is simple, the steps are easy to operate, the Cycle time of the drilling process and the time for workers to manually process burrs are reduced, the labor cost is saved, the number of drilled holes is reduced, the use of drill points is reduced, and the production cost is greatly saved.
Description
Technical Field
The invention belongs to the technical field of PCB manufacturing, and particularly relates to a method for improving burrs of round holes and round hole intersecting holes.
Background
In the PCB (printed circuit board) field, need process more and more round holes and the crossing hole of round hole for the demand that fully satisfies the use for special-shaped plug-in components welds on the PCB board. However, when the round hole and the round hole are intersected in the drilling process, the glass fiber of the base material cannot be completely cut off due to the fact that the hole is drilled on one side, so that 100% of burrs in the hole are generated to influence the aperture and the use of a customer, and meanwhile, the production cost of a factory is increased.
Disclosure of Invention
The invention aims to solve the problem that time and labor are wasted in removing burrs generated in the intersection holes of the circular holes and the circular holes of the PCB, and provides a method for improving the burrs of the intersection holes of the circular holes and the circular holes, which is simple in method, easy to operate in steps and low in cost.
According to the technical scheme of the invention, the method for improving the burrs of the intersected holes of the round holes comprises the following steps,
(1) drilling two intersected round holes with different apertures on the PCB by using a slotting cutter;
(2) drilling and repairing burr holes: the number of the burr trimming holes is two, the diameters of the burr trimming holes are respectively consistent with the diameters of the round holes, and the positions of the burr trimming holes deviate by 1mil from the round holes with the same diameter to the round holes with different diameters along the connecting line of the centers of the two round holes.
Further, the round hole with the larger diameter in the two round holes in the step (1) is drilled firstly.
Further, in the step (2), the burr hole with the smaller diameter in the two burr holes is drilled first.
The invention has the beneficial effects that: the method is simple, the steps are easy to operate, the Cycle time of the drilling process and the time for workers to manually process burrs are reduced, the labor cost is saved, the number of drilled holes is reduced, the use of drill points is reduced, and the production cost is greatly saved.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
Detailed Description
The invention is further illustrated by the following examples and figures.
Example one
A method for improving burrs of a round hole and a round hole intersected hole comprises the following steps,
(1) the slotting tool is used for drilling two intersecting circular holes with different apertures on the PCB, and the slotting tool is not easy to break a needle when drilling the intersecting apertures because the edge length of the slotting tool is slightly short and the rigidity is better; wherein, the round holes A with larger hole diameters in two circles can be drilled firstly, and then the round holes B with smaller hole diameters in the two circles can be drilled;
(2) drilling and repairing burr holes: the number of the burr trimming holes is two, the diameters of the burr trimming holes are respectively consistent with those of the round holes, and the positions of the burr trimming holes are shifted from the round holes with the same diameter to the round holes with different diameters along the connecting line of the centers of the two round holes by d =1 mil;
specifically, as shown in the figure: the burr trimming holes are respectively A1 and B1, the diameters of A1 and A are consistent, and the diameters of B1 and B are consistent;
the burr hole with the smaller diameter in the two burr holes is drilled firstly, namely the burr hole B1 is drilled firstly: b1, moving the hole B linearly to the hole A for 1mil along the connecting line of the two circle centers; and (3) drilling and repairing a burr hole A1: a1 is that A hole moves 1mil along the line of two centre of a circle to B hole straight line, reduces the change of cutter and has practiced thrift process time.
The method is simple, the steps are easy to operate, the Cycle time of the drilling process and the time for workers to manually process burrs are reduced, the labor cost is saved, the number of drilled holes is reduced, the number of drill points is reduced, and the production cost is greatly saved.
Claims (1)
1. A method for improving burrs of a round hole and a round hole intersected hole is characterized by comprising the following steps of,
(1) drilling two crossed round holes with different apertures on the PCB by using a slotting cutter;
(2) drilling and repairing burr holes: the number of the burr trimming holes is two, the diameters of the burr trimming holes are respectively consistent with those of the round holes, and the positions of the burr trimming holes deviate by 1mil from the round holes with the same diameter to the round holes with different diameters along the connecting line of the centers of the two round holes;
drilling a round hole with a larger diameter in the two round holes in the step (1);
and (3) drilling the burr trimming hole with smaller diameter in the two burr trimming holes in the step (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910912665.2A CN110677997B (en) | 2019-09-25 | 2019-09-25 | Method for improving burrs of round hole and round hole intersection hole |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910912665.2A CN110677997B (en) | 2019-09-25 | 2019-09-25 | Method for improving burrs of round hole and round hole intersection hole |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110677997A CN110677997A (en) | 2020-01-10 |
| CN110677997B true CN110677997B (en) | 2022-09-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910912665.2A Active CN110677997B (en) | 2019-09-25 | 2019-09-25 | Method for improving burrs of round hole and round hole intersection hole |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110677997B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111531632B (en) * | 2020-04-13 | 2022-02-11 | 广州兴森快捷电路科技有限公司 | Method and device for adding burr hole, computer equipment and storage medium |
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 |
| CN103096622A (en) * | 2011-10-28 | 2013-05-08 | 北大方正集团有限公司 | Drilling method of manufacturing printed circuit board (PCB) and PCB |
| CN105430911A (en) * | 2015-11-25 | 2016-03-23 | 大连崇达电路有限公司 | Manufacturing method for 8-shaped hole of printed circuit board |
| CN105491797A (en) * | 2015-11-24 | 2016-04-13 | 梅州市志浩电子科技有限公司 | Processing method for short slot hole of printed circuit board |
-
2019
- 2019-09-25 CN CN201910912665.2A patent/CN110677997B/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 |
| CN103096622A (en) * | 2011-10-28 | 2013-05-08 | 北大方正集团有限公司 | Drilling method of manufacturing printed circuit board (PCB) and PCB |
| CN105491797A (en) * | 2015-11-24 | 2016-04-13 | 梅州市志浩电子科技有限公司 | Processing method for short slot hole of printed circuit board |
| CN105430911A (en) * | 2015-11-25 | 2016-03-23 | 大连崇达电路有限公司 | Manufacturing method for 8-shaped hole of printed circuit board |
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| CN110677997A (en) | 2020-01-10 |
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Address after: Jiangsu province Wuxi Chunhui road 214101 Xishan City Economic Development Zone No. 32 Applicant after: Gaode (Jiangsu) Electronic Technology Co.,Ltd. Address before: Jiangsu province Wuxi Chunhui road 214101 Xishan City Economic Development Zone No. 32 Applicant before: GULTECH (JIANGSU) ELECTRONIC TECHNOLOGIES CO.,LTD. |
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