CN109849104A - A kind of control method for the hole position accuracy that drills - Google Patents
A kind of control method for the hole position accuracy that drills Download PDFInfo
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- CN109849104A CN109849104A CN201811460766.2A CN201811460766A CN109849104A CN 109849104 A CN109849104 A CN 109849104A CN 201811460766 A CN201811460766 A CN 201811460766A CN 109849104 A CN109849104 A CN 109849104A
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- drilling
- drill point
- position accuracy
- hole position
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Abstract
The present invention provides a kind of control method of hole position accuracy that drills, it is characterized in that, its procedure of processing includes: that S1. gets out extraordinary drill point, the cutter that design confirmation production needs, parameters are as follows: drill point diameter is cutter diameter needed for PCB circuit board, and drill type is UC type, shank diameter 1.25-2.5mm, edge length is 0.7-1.2mm, and blade and knife handle concentricity are 1-3um, and shank diameter error is 0.5-1.5um；After the completion of drilling, is examined and confirmed using hole location check machine.The present invention is optimized by tool to drilling and processing technology, so that the hole position accuracy tolerance of drilling processing is +/- 1mil, can satisfy the process requirements of more accurate hole position accuracy ability.
Description
Technical field
The present invention relates to route board machining process fields, more particularly to a kind of control method of hole position accuracy that drills.
Background technique
With the fast development of national economy and digital information technique, people start to mention printed circuit board end product
Increasingly higher demands out, and the layout density of printed circuit board is being stepped up, so just needing to reduce boring aperture, is
The layout density of printed circuit board is increased, this is undoubtedly a kind of development trend of state-of-the-art technology.
In the prior art, drilling is using drilling machining, lamination when processing require for 1 piece/it is folded.General drilling processing
Hole position accuracy tolerance be +/- 2mil.But for more accurate hole position accuracy ability, then it is unable to satisfy the demand of processing.
Summary of the invention
In view of this, the present invention provides a kind of control method of hole position accuracy that drills, the present invention passes through the tool to drilling
And processing technology optimizes, so that the hole position accuracy tolerance of drilling processing is +/- 1mil, can satisfy more accurate hole
The process requirements of position precision capability.
The scheme of technology of the invention are as follows: a kind of control method for the hole position accuracy that drills, procedure of processing include:
S1. extraordinary drill point, the cutter that design confirmation production needs, parameters are as follows: drill point diameter is PCB circuit board are got out
Required cutter diameter, drill type are UC type, shank diameter 1.25-2.5mm, edge length 0.7-1.2mm, blade and knife handle
Concentricity is 1-3um, and shank diameter error is 0.5-1.5um；S2. preboring one is first carried out in the circuit board using extraordinary drill point
Fixed depth, when extraordinary drill point carries out preboring in the circuit board, by one piece of pcb board/folded, with machined parameters revolving speed 30-45krpm,
It cuts speed 0.2-0.45m/min and carries out preboring, pre- drilling depth is pcb board thickness 5-8%；
S3. the common drill point for reusing same diameter drills, and machined parameters revolving speed 65-95krpm cuts speed 0.8-
1.3m/min, lower drilling depth are 7-10mm；
S4. the common drill point for reusing same diameter drills, and machined parameters revolving speed 110-125krpm cuts speed 1.5-
1.8m/min, percentage regulation when drilling, wiring board is drilled through；S5. it after the completion of drilling, is examined and is confirmed using hole location check machine.
Further, the edge length is 1.1mm.Further, the shank diameter is 2.154mm.Further
, the blade and knife handle concentricity are 2.5um.Further, the shank diameter error is 1.2um.
The present invention provides a kind of control methods of hole position accuracy that drills will by a large amount of creative test of inventor
The needle sword length of extraordinary drill point shortens to the greatest extent, effectively reduces beat, can effectively improve precision, is added by being directed to
Work pcb board cutter sets shank diameter, has specific aim, and the blade and knife handle concentricity can reduce drill point up to 2.5um
Concentricity tolerance, the shank diameter error be 1.2um, the clamping deviation of main shaft chuck can be reduced.Present inventor
High-precision is obtained by the drilling of different drilling speeds three times by the setting of optimization and bore process to extraordinary drill point parameter
Drilling hole location, processing method of the invention has significant progress compared with the prior art.
Specific embodiment
Technical solution of the present invention is clearly and completely described below in conjunction with embodiment, it is clear that described reality
Applying example is only a part of the embodiment of the present invention, instead of all the embodiments.
Embodiment 1
A kind of control method for the hole position accuracy that drills, procedure of processing include:
S1. extraordinary drill point, the cutter that design confirmation production needs, parameters are as follows: drill point diameter is PCB circuit board are got out
Required cutter diameter, drill type are UC type, shank diameter 2.154mm, edge length 1.1mm, blade and knife handle concentricity
For 2.5um, shank diameter error is 1.2um；S2. the certain depth of preboring is first carried out in the circuit board using extraordinary drill point, it is special
When kind of drill point carries out preboring in the circuit board, by one piece of pcb board/folded, with machined parameters revolving speed 42krpm, speed 0.38m/ is cut
Min carries out preboring, and pre- drilling depth is pcb board thickness 6%；
S3. the common drill point for reusing same diameter drills, and machined parameters revolving speed 82krpm cuts speed 1.0m/min,
Lower drilling depth is 8mm；
S4. the common drill point for reusing same diameter drills, and machined parameters revolving speed 118krpm cuts speed 1.6m/min,
Percentage regulation when drilling, wiring board is drilled through；S5. it after the completion of drilling, is examined and is confirmed using hole location check machine.
The present invention provides a kind of control methods of hole position accuracy that drills will by a large amount of creative test of inventor
The needle sword length of extraordinary drill point shortens to the greatest extent, effectively reduces beat, can effectively improve precision, is added by being directed to
Work pcb board cutter sets shank diameter, has specific aim, and the blade and knife handle concentricity can reduce drill point up to 2.5um
Concentricity tolerance, the shank diameter error be 1.2um, the clamping deviation of main shaft chuck can be reduced.Present inventor
High-precision is obtained by the drilling of different drilling speeds three times by the setting of optimization and bore process to extraordinary drill point parameter
Drilling hole location, processing method of the invention has significant progress compared with the prior art.
Embodiment 2
A kind of control method for the hole position accuracy that drills, procedure of processing include:
S1. extraordinary drill point, the cutter that design confirmation production needs, parameters are as follows: drill point diameter is PCB circuit board are got out
Required cutter diameter, drill type are UC type, shank diameter 1.685mm, edge length 0.9mm, blade and knife handle concentricity
For 2um, shank diameter error is 1.0um；S2. the certain depth of preboring is first carried out in the circuit board using extraordinary drill point, it is extraordinary
When drill point carries out preboring in the circuit board, by one piece of pcb board/folded, with machined parameters revolving speed 38krpm, speed 0.32m/ is cut
Min carries out preboring, and pre- drilling depth is pcb board thickness 5.5%；
S3. the common drill point for reusing same diameter drills, and machined parameters revolving speed 85krpm cuts speed 1.1m/min,
Lower drilling depth is 9mm；
S4. the common drill point for reusing same diameter drills, and machined parameters revolving speed 121krpm cuts speed 1.7m/min,
Percentage regulation when drilling, wiring board is drilled through；S5. it after the completion of drilling, is examined and is confirmed using hole location check machine.
Embodiment 3
A kind of control method for the hole position accuracy that drills, procedure of processing include:
S1. extraordinary drill point, the cutter that design confirmation production needs, parameters are as follows: drill point diameter is PCB circuit board are got out
Required cutter diameter, drill type are UC type, and shank diameter 1.25mm, edge length 0.7mm, blade is with knife handle concentricity
1um, shank diameter error are 0.5um；S2. the certain depth of preboring is first carried out in the circuit board using extraordinary drill point, special type is bored
When needle carries out preboring in the circuit board, by one piece of pcb board/folded, with machined parameters revolving speed 30krpm, cut speed 0.2m/min into
Row preboring, pre- drilling depth are pcb board thickness 5%；
S3. the common drill point for reusing same diameter drills, and machined parameters revolving speed 65krpm cuts speed 0.8m/min,
Lower drilling depth is 7mm；
S4. the common drill point for reusing same diameter drills, and machined parameters revolving speed 110krpm cuts speed 1.5m/min,
Percentage regulation when drilling, wiring board is drilled through；S5. it after the completion of drilling, is examined and is confirmed using hole location check machine.
Embodiment 4
A kind of control method for the hole position accuracy that drills, procedure of processing include:
S1. extraordinary drill point, the cutter that design confirmation production needs, parameters are as follows: drill point diameter is PCB circuit board are got out
Required cutter diameter, drill type are UC type, and shank diameter 2.5mm, edge length 1.2mm, blade is with knife handle concentricity
3um, shank diameter error are 1.5um；S2. the certain depth of preboring is first carried out in the circuit board using extraordinary drill point, special type is bored
When needle carries out preboring in the circuit board, by one piece of pcb board/folded, with machined parameters revolving speed 45krpm, speed 0.45m/min is cut
Preboring is carried out, pre- drilling depth is pcb board thickness 8%；
S3. the common drill point for reusing same diameter drills, and machined parameters revolving speed 95krpm cuts speed 1.3m/min,
Lower drilling depth is 10mm；
S4. the common drill point for reusing same diameter drills, and machined parameters revolving speed 125krpm cuts speed 1.8m/min,
Percentage regulation when drilling, wiring board is drilled through；S5. it after the completion of drilling, is examined and is confirmed using hole location check machine.
Comparative example 1
A kind of control method for the hole position accuracy that drills, procedure of processing include:
S1. extraordinary drill point, the cutter that design confirmation production needs, parameters are as follows: drill point diameter is PCB circuit board are got out
Required cutter diameter, drill type are UC type, shank diameter 2.154mm, edge length 1.1mm, blade and knife handle concentricity
For 2.5um, shank diameter error is 1.2um；S2. the certain depth of preboring is first carried out in the circuit board using extraordinary drill point, it is special
When kind of drill point carries out preboring in the circuit board, by one piece of pcb board/folded, with machined parameters revolving speed 42krpm, speed 0.38m/ is cut
Min carries out preboring, and pre- drilling depth is pcb board thickness 6%；
S3. the common drill point for reusing same diameter drills, and machined parameters revolving speed 82krpm cuts speed 1.0m/min,
Percentage regulation when drilling, wiring board is drilled through；
S4. it after the completion of drilling, is examined and is confirmed using hole location check machine.
Comparative example 2
A kind of control method for the hole position accuracy that drills, procedure of processing include:
S1. extraordinary drill point, the cutter that design confirmation production needs, parameters are as follows: drill point diameter is PCB circuit board are got out
Required cutter diameter, drill type are UC type, shank diameter 2.154mm, edge length 1.1mm, blade and knife handle concentricity
For 2.5um, shank diameter error is 1.2um；S2. first in the circuit board using extraordinary drill point, it is bored using common drill point
Hole, machined parameters revolving speed 82krpm cut speed 1.0m/min, and percentage regulation when drilling drills through wiring board；
S3. it after the completion of drilling, is examined and is confirmed using hole location check machine.
Test effect
The sample for extracting each embodiment is tested and analyzed, and using the test method of the prior art, obtains following data:
| Test group | Tolerance | CPK value | Fraction defective | Lean product ability |
| Embodiment 1 | +/-0.9mil | 1.964 | 0.00001% | It is outstanding |
| Embodiment 2 | +/-1.0 mil | 1.923 | 0.00001% | It is outstanding |
| Embodiment 3 | +/-1.1 mil | 1.889 | 0.00001% | It is outstanding |
| Embodiment 4 | +/-1.1mil | 1.874 | 0.00001% | It is outstanding |
| Comparative example 1 | +/-1.6mil | 1.421 | 0.0001% | It is qualified |
| Comparative example 2 | +/-2.8 mil | 0.993 | 0.1% | It is unqualified |
It is obvious to a person skilled in the art that invention is not limited to the details of the above exemplary embodiments, and do not carrying on the back
In the case where from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matter from which
From the point of view of a bit, the present embodiments are to be considered as illustrative and not restrictive, and the scope of the present invention is wanted by appended right
Ask rather than above description limit, it is intended that by all changes that come within the meaning and range of equivalency of the claims
It is included within the present invention.
In addition, it should be understood that although this specification is described in terms of embodiments, but not each embodiment is only wrapped
Containing an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should
It considers the specification as a whole, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
The other embodiments being understood that.It is noted that the technical characteristic being not described in detail in the present invention, can pass through this
Field any prior art is realized.
Claims (5)
1. a kind of control method for the hole position accuracy that drills, which is characterized in that its procedure of processing includes: that S1. gets out extraordinary brill
Needle, the cutter that design confirmation production needs, parameters are as follows: drill point diameter is cutter diameter needed for PCB circuit board, drill
Type is UC type, and shank diameter 1.25-2.5mm, edge length 0.7-1.2mm, blade and knife handle concentricity are 1-3um, knife
Shank diameter error is 0.5-1.5um；S2. the certain depth of preboring, extraordinary drill point are first carried out in the circuit board using extraordinary drill point
When carrying out preboring in the circuit board, by one piece of pcb board/folded, with machined parameters revolving speed 30-45krpm, speed 0.2- is cut
0.45m/min carries out preboring, and pre- drilling depth is pcb board thickness 5-8%；
S3. the common drill point for reusing same diameter drills, and machined parameters revolving speed 65-95krpm cuts speed 0.8-
1.3m/min, lower drilling depth are 7-10mm；
S4. the common drill point for reusing same diameter drills, and machined parameters revolving speed 110-125krpm cuts speed 1.5-
1.8m/min, percentage regulation when drilling, wiring board is drilled through；S5. it after the completion of drilling, is examined and is confirmed using hole location check machine.
2. the control method of drilling hole position accuracy according to claim 1, which is characterized in that the edge length is
1.1mm。
3. the control method of drilling hole position accuracy according to claim 1, which is characterized in that the shank diameter is
2.154mm。
4. the control method of drilling hole position accuracy according to claim 1, which is characterized in that the blade and knife handle are concentric
Degree is 2.5um.
5. the control method of drilling hole position accuracy according to claim 1, which is characterized in that the shank diameter error is
1.2um。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811460766.2A CN109849104A (en) | 2018-12-01 | 2018-12-01 | A kind of control method for the hole position accuracy that drills |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811460766.2A CN109849104A (en) | 2018-12-01 | 2018-12-01 | A kind of control method for the hole position accuracy that drills |
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| Publication Number | Publication Date |
|---|---|
| CN109849104A true CN109849104A (en) | 2019-06-07 |
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ID=66890559
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811460766.2A Pending CN109849104A (en) | 2018-12-01 | 2018-12-01 | A kind of control method for the hole position accuracy that drills |
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| Country | Link |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103786189A (en) * | 2014-01-21 | 2014-05-14 | 广州兴森快捷电路科技有限公司 | Drilling method for achieving PCB high hole-site precision |
| CN106424802A (en) * | 2016-11-09 | 2017-02-22 | 珠海杰赛科技有限公司 | Processing method for improving drilling hole position accuracy of PCB |
| CN107350497A (en) * | 2017-07-12 | 2017-11-17 | 安徽凯密克企业管理咨询有限公司 | A kind of Drilling operation technique of auto parts |
-
2018
- 2018-12-01 CN CN201811460766.2A patent/CN109849104A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103786189A (en) * | 2014-01-21 | 2014-05-14 | 广州兴森快捷电路科技有限公司 | Drilling method for achieving PCB high hole-site precision |
| CN106424802A (en) * | 2016-11-09 | 2017-02-22 | 珠海杰赛科技有限公司 | Processing method for improving drilling hole position accuracy of PCB |
| CN107350497A (en) * | 2017-07-12 | 2017-11-17 | 安徽凯密克企业管理咨询有限公司 | A kind of Drilling operation technique of auto parts |
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Application publication date: 20190607 |
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