CN102510667B - CNC (Computer Numerical Control) board splitting production method without NPTH (Non Plating Through Hole) hole positioning - Google Patents
CNC (Computer Numerical Control) board splitting production method without NPTH (Non Plating Through Hole) hole positioning Download PDFInfo
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- CN102510667B CN102510667B CN201110337321.7A CN201110337321A CN102510667B CN 102510667 B CN102510667 B CN 102510667B CN 201110337321 A CN201110337321 A CN 201110337321A CN 102510667 B CN102510667 B CN 102510667B
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Abstract
The invention discloses a CNC (Computer Numerical Control) board splitting production method without NPTH (Non Plating Through Hole) hole positioning, which is used in single PCS (pieces) shipment production in the manufacturing process of printed circuit boards, and because secondary forming is adopted, when CNC board splitting is carried out on a single PCS board, at least four groove angles of NPTH grooves distributed on the single PCS board are selected as forming positioning holes for board splitting, and remained reserved connecting positions of appointed areas are split. At least four NPTH groove angles in the PCS board are selected for positioning, PIN holes are arranged in the position tangential to the groove angles, and the PIN holes need to be distributed at four edges of the PCS board to the greatest extent so as to ensure that the PCS board does not move in four directions. The diameter of a selected pin is 0.05mm smaller than the diameter of a PIN hole drilling tool. Compared with a PTH (Plated Through Hole) hole positioning mode, the method disclosed by the invention makes a finished product do not have the problems of hole wall pull break, pad abrasion, poor solderability, hole copper fracture and the like. Compared with a gummed paper sticking positioning mode, the method disclosed by the invention makes the finished product have a more stable size and have no off tolerance, and the board splitting efficiency is effectively improved.
Description
Technical field
The present invention relates to CNC gong plate technique field, a kind of CNC gong plate method of in particular locating without NPTH hole for single PCS shipment in printed wiring board manufacturing process.
Background technology
CNC is called again computer gong or Digit Control Machine Tool, is the abbreviation of computer digital control machine tool (Computer numerical control), is a kind of by programme controlled automated machine tool.This control system can logically be processed has control coding or other symbolic instruction regulated procedures, by computer by its decoding, thereby the action that lathe has been put rules into practice is processed into semi-finished product fabricated part by Tool in Cutting by blank material
Printed circuit board (PCB) (pcb board), is on the insulation board of certain size, is processed into the figure of some conductions, and cloth porose (as element jointing holes, fastener hole, plated-through hole etc.), take it as chassis, can realize components and parts interconnective wiring plate before.
On pcb board, have PTH hole, NPTH hole with etc., it is respectively:
PTH hole, Platting Through Hole refers to electroplating hole (also claiming components and parts insert hole);
NPTH hole, Non-Platting Through Hole refers to electroless coating hole, hole wall, without copper, is generally location hole and gong silk hole.
In current wiring board industry, (PCS is mono-of pieces to the mono-PCS(sheet of PCB, piece, part, sheet, a piece of writing,, bar, cover)) shipment, when CNC gong plate is located without NPTH hole location hole, the selection of location hole, there are following 3 kinds of situations: the one, under client's enabled condition, can add 3 NPTH holes triangular in shape.The 2nd, when can add without position or client disagrees with interpolation, just must select PTH hole, as location hole.The 3rd, use the mode gong plate of white glue paper location.
Generally employing mode of industry has at present:
1, use PTH hole locate mode to carry out CNC gong plate
CNC orientation problem when this mode can have single PCS shipment of solution, but when upper and lower plates, can cause pulling the problems such as hole wall, wiping flower pad, especially spray tin and immersion gold plate.And these problems account for 50% left and right of visual examination defect, even if client reduces the Acceptable criterion of this position, still have partially spent, and can have in client the problem that solderability is bad and hole copper ruptures.
2, adopt rubberizing paper locate mode to carry out CNC gong plate
The method is that use white glue paper is fixed on to gong machine table top by plate.Select the words with white glue paper location, only with the folded inefficiency of a slice one, and easily because being adjacent to, do not cause loosening or cull, be prone to two area of beds qualified on one side, the situation that another side is overproof, by this mode, make, finished size is unstable easily overproof and make efficiency is low, and plate face easily has the problems such as cull.
Therefore, prior art has yet to be improved and developed.
Summary of the invention
The technical problem to be solved in the present invention is, above-mentioned defect for prior art, a kind of CNC gong plate producing process without location, NPTH hole is provided, it is simple to operate, realize easily, make that finished product can not produce that colored pad is pulled, wiped to hole wall, solderability is bad and the problem such as hole copper fracture, make that finished size is more stable be there is no overproofly, and effectively promote gong plate efficiency.
The technical scheme that technical solution problem of the present invention adopts is as follows:
A CNC gong plate producing process for NPTH hole location, in the production for single PCS shipment of printed wiring board manufacturing process, wherein, comprises step:
In A, printed wiring board manufacturing process during moulding for the first time, a plurality of single PCS plates are set on whole working plate, select and on the spacing position between adjacent two PCS, directly add location, hole, and reserve the connection bit of specifying area on each PCS after, gong goes out part profile, so that the direct gong of whole working plate is become to predetermined whole figure, and whole working plate is cut into a plurality of single PCS plates;
B, be shaped when single PCS plate is carried out to CNC gong plate for the second time, select at least 4 groove angles that are distributed in the NPTH groove on single PCS plate to carry out gong plate as moulding location hole, gong falls the connection bit of remaining described reserved appointment area.
The CNC gong plate method of manufacture order PCS in described printed wiring board manufacturing process, wherein, described step B specifically comprises:
B1, when single PCS plate is carried out to CNC gong plate, 4 NPTH groove angles that are at least chosen on single PCS plate position as PIN hole, and PIN hole is chosen in tangent with NPTH groove angle and is distributed in four limits of PCS plate.
The CNC gong plate method of manufacture order PCS in described printed wiring board manufacturing process, wherein, described step B1 also comprises: select than the pin of the PIN hole drill cutter cutter little 0.05mm in footpath described PIN hole is positioned, to locate described single PCS plate, carry out CNC gong plate.
CNC gong plate producing process without location, NPTH hole provided by the present invention, owing to having adopted, be shaped for the second time when single PCS plate is carried out to CNC gong plate, select at least 4 groove angles that are distributed in the NPTH groove on single PCS plate to carry out gong plate as moulding location hole, gong falls the connection bit of remaining reserved appointment area.And at least select 4 NPTH groove angle location in PCS, PIN hole is placed on four limits that the position ，QiePIN hole tangent with groove angle will be distributed in PCS plate as far as possible, mobile to guarantee PCS nothing on four direction.Select pin than the PIN hole drill cutter cutter little 0.05mm in footpath.Tool has the following advantages:
1. relative PTH hole locate mode, makes that colored pad is pulled, wiped to finished product imperforate wall, solderability is bad and the problem such as hole copper fracture.
2. relative rubberizing paper locate mode, makes that finished size is more stable be there is no overproofly, and effectively promotes gong plate efficiency.
Accompanying drawing explanation
Fig. 1 is the CNC gong plate producing process flow chart without location, NPTH hole of the embodiment of the present invention.
Fig. 2 is the CNC gong plate producing process the first location structure schematic diagram without location, NPTH hole of the embodiment of the present invention.
Fig. 3 is the CNC gong plate producing process the second location structure schematic diagram without location, NPTH hole of the embodiment of the present invention.
Embodiment
A kind of CNC gong plate producing process without location, NPTH hole of the present invention, for making object of the present invention, technical scheme and advantage clearer, clear and definite, referring to accompanying drawing, developing simultaneously, the present invention is described in more detail for embodiment.Should be appreciated that specific embodiment described herein, only in order to explain the present invention, is not intended to limit the present invention.
Wherein, gong plate is exactly according to the program of finishing in advance, by milling cutter gong, to go out in the circuit board the jigsaw figure of regulation with gong machine.Advantage: can according to program onboard gong go out various shape jigsaw figures, can several the overlapping processing simultaneously of plate, gong sheet metal forming dimensional accuracy is high, gong board interface is smooth.
As shown in Figure 1, the embodiment of the present invention provides a kind of CNC gong plate producing process without location, NPTH hole, in the production for single PCS shipment of printed wiring board manufacturing process, mainly comprises the following steps:
In step S100, printed wiring board manufacturing process during moulding for the first time, on whole working plate (being initial large plate), a plurality of single PCS plates are set, select and on the spacing position between adjacent two PCS, directly add location, hole, and reserve the connection bit of specifying area on each PCS after, gong goes out part profile, so that the direct gong of whole working plate is become to predetermined whole figure, and whole working plate is cut into a plurality of single PCS plates.
Step S200, be shaped when single PCS plate is carried out to CNC gong plate for the second time, select at least 4 groove angles that are distributed in the NPTH groove on single PCS plate to carry out gong plate as moulding location hole, gong falls the connection bit of remaining described reserved appointment area.
Particularly, as shown in Figure 2, when single PCS plate 300 is carried out to CNC gong plate, 4 NPTH groove angles 301 that are at least chosen on single PCS plate 300 position as PIN hole 302, and PIN hole 302 is chosen in NPTH groove angle 301 tangent, and be distributed in the position on four limits of PCS plate 300 as far as possible.Fig. 2 is the first locate mode of the CNC gong plate producing process without location, NPTH hole of the first embodiment of the present invention, and in Fig. 2, PIN hole 302 is chosen in four limits of single PCS plate 300 near on the tangent position of four NPTH groove angles 301 of outside.
Fig. 3 is the second locate mode of the CNC gong plate producing process without NPTH hole location of the second embodiment of the present invention, by PIN hole 302 being chosen on the tangent position of four close NPTH groove angles 301 of single PCS plate 300.
By being distributed in the position on four limits of PCS plate 300, select the PIN hole 302 for locating, can effectively single PCS plate be fixed, like this, make that finished product can not produce that colored pad is pulled, wiped to hole wall, solderability is bad and the problem such as hole copper fracture, make that finished size is more stable be there is no overproofly, and effectively promote gong plate efficiency.And it is simple to operate, realize easily
Specifically, when location, can select the pin that bores the cutter cutter little 0.05mm in footpath than PIN hole 302 to position described PIN hole 302, to locate described single PCS plate 300, carry out CNC gong plate.
In sum, CNC gong plate producing process without location, NPTH hole provided by the present invention, owing to having adopted, be shaped for the second time when single PCS plate is carried out to CNC gong plate, select at least 4 groove angles that are distributed in the NPTH groove on single PCS plate to carry out gong plate as moulding location hole, gong falls the connection bit of remaining reserved appointment area.And at least select 4 NPTH groove angle location in PCS, PIN hole is placed on four limits that the position ，QiePIN hole tangent with groove angle will be distributed in PCS plate as far as possible, mobile to guarantee PCS nothing on four direction.Select pin than the PIN hole drill cutter cutter little 0.05mm in footpath.Tool has the following advantages:
1. relative PTH hole locate mode, makes that colored pad is pulled, wiped to finished product imperforate wall, solderability is bad and the problem such as hole copper fracture.
2. relative rubberizing paper locate mode, makes that finished size is more stable be there is no overproofly, and effectively promotes gong plate efficiency.
Should be understood that, application of the present invention is not limited to above-mentioned giving an example, and for those of ordinary skills, can be improved according to the above description or convert, and all these improvement and conversion all should belong to the protection range of claims of the present invention.
Claims (1)
1. without the Digit Control Machine Tool CNC gong plate producing process of location hole NPTH location, in the production for the monolithic PCS shipment of printed wiring board manufacturing process, it is characterized in that, comprise step:
In A, printed wiring board manufacturing process during moulding for the first time, a plurality of monolithic PCS plates are set on whole working plate, select and on the spacing position between adjacent two PCS, directly add location, hole, and reserve the connection bit of specifying area on each sheet PCS after, gong goes out part profile, so that the direct gong of whole working plate is become to predetermined whole figure, and whole working plate is cut into a plurality of monolithic PCS plates;
B, be shaped when monolithic PCS plate is carried out to Digit Control Machine Tool CNC gong plate for the second time, select at least 4 groove angles of the location hole NPTH groove being distributed on monolithic PCS plate to carry out gong plate as moulding location hole, gong falls the connection bit of remaining described reserved appointment area;
Described step B specifically comprises:
B1, when monolithic PCS plate is carried out to Digit Control Machine Tool CNC gong plate, 4 location hole NPTH groove angles that are at least chosen on monolithic PCS plate position as stitch PIN hole, and stitch PIN hole is chosen in tangent with location hole NPTH groove angle and is distributed in four limits of sheet PCS plate;
Described step B1 also comprises: select than the pin of the stitch PIN hole drill cutter cutter little 0.05mm in footpath described stitch PIN hole is positioned, to locate described monolithic PCS plate, carry out Digit Control Machine Tool CNC gong plate.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201110337321.7A CN102510667B (en) | 2011-10-31 | 2011-10-31 | CNC (Computer Numerical Control) board splitting production method without NPTH (Non Plating Through Hole) hole positioning |
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| CN201110337321.7A CN102510667B (en) | 2011-10-31 | 2011-10-31 | CNC (Computer Numerical Control) board splitting production method without NPTH (Non Plating Through Hole) hole positioning |
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| CN102510667B true CN102510667B (en) | 2014-02-19 |
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Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103002661B (en) * | 2012-09-19 | 2015-07-08 | 胜宏科技（惠州）股份有限公司 | Post production process of thin panels |
| CN104168713B (en) * | 2013-05-20 | 2017-02-08 | 北大方正集团有限公司 | Printed circuit board routing method |
| CN104625584A (en) * | 2013-11-11 | 2015-05-20 | 江苏苏杭电子有限公司 | Printed circuit board appearance machining method |
| CN103607850B (en) * | 2013-11-28 | 2016-08-24 | 深圳市景旺电子股份有限公司 | A kind of processing method of inner bevel edge of PCB |
| CN104703396B (en) * | 2015-03-02 | 2017-08-15 | 西安金百泽电路科技有限公司 | Small size wiring board method for processing forming without interior positioning |
| CN106034380B (en) * | 2015-12-22 | 2018-10-02 | 奥士康精密电路（惠州）有限公司 | A kind of production method of printed wiring board |
| CN106529106B (en) * | 2017-01-09 | 2019-09-06 | 郑州云海信息技术有限公司 | One kind building hole method, apparatus and a kind of PCB |
| CN106825763B (en) * | 2017-01-11 | 2019-05-17 | 雪龙数控设备(深圳)有限公司 | Without the wiring board cutting processing technology of the nail of pin on the table, numerical control gong machine |
| CN106900139B (en) * | 2017-04-20 | 2019-05-14 | 胜宏科技（惠州）股份有限公司 | A kind of high-accuracy no technique edges LED circuit board moulding process |
| CN109587954A (en) * | 2018-12-12 | 2019-04-05 | 东莞市若美电子科技有限公司 | No interior positioning milling plate production technology |
| CN110861144B (en) * | 2019-10-21 | 2021-04-13 | 雪龙数控设备(深圳)有限公司 | Routing and cutting processing method |
| CN115835506B (en) * | 2023-02-21 | 2023-05-19 | 遂宁睿杰兴科技有限公司 | Forming method of printed circuit board without positioning pin holes |
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| CN201253769Y (en) * | 2008-10-08 | 2009-06-10 | 惠州美锐电子科技有限公司 | Locating nail for printed circuit board drilling |
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| JPH0774490A (en) * | 1993-09-02 | 1995-03-17 | Fanuc Ltd | Cnc printed board unit |
| KR20090053628A (en) * | 2007-11-23 | 2009-05-27 | 삼성전기주식회사 | Printed circuit board and manufacturing method of the same |
| KR101003391B1 (en) * | 2008-04-11 | 2010-12-23 | 삼성전기주식회사 | Method of processing hole of printed circuit board |
| KR101009729B1 (en) * | 2008-08-14 | 2011-01-19 | 주식회사 에스아이 플렉스 | A multi layer fpcb for forming bvh by using pth and a method thereof |
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| CN201253769Y (en) * | 2008-10-08 | 2009-06-10 | 惠州美锐电子科技有限公司 | Locating nail for printed circuit board drilling |
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