CN107708305B - Routing process for precisely controlling appearance of substrate - Google Patents
Routing process for precisely controlling appearance of substrate Download PDFInfo
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- CN107708305B CN107708305B CN201710759756.8A CN201710759756A CN107708305B CN 107708305 B CN107708305 B CN 107708305B CN 201710759756 A CN201710759756 A CN 201710759756A CN 107708305 B CN107708305 B CN 107708305B
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- substrate
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- gong
- size
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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
- H05K3/0052—Depaneling, i.e. dividing a panel into circuit boards; Working of the edges of circuit boards
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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
- H05K2203/0228—Cutting, sawing, milling or shearing
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Milling Processes (AREA)
Abstract
The invention relates to a milling process for precisely controlling the appearance of a substrate, and provides a whole substrate to be milled, wherein the whole substrate comprises at least two forming units, and the milling process further comprises the following steps: s1, measuring the expansion and contraction condition of the substrate outline dimension; s2, positioning the routing board, and positioning the substrate; s3, setting parameters, inputting positioning data, inputting substrate data, and setting processing parameters; s4, carrying out rough routing and grooving, and carrying out inner groove grooving on the inner side of the forming unit through a rough routing knife; s5, fine gong cutting, namely cutting the inner grooves and the periphery of the forming units by a fine gong cutter; s6, confirming the size of the first cut forming unit, and entering mass production when the size meets the requirement; and S7, carrying out QA sampling inspection in the production process. The invention reduces the scrappage problem caused by the unqualified size, improves the appearance quality, reduces the scrappage rate, and meets the size requirement of a customer with low cost input and high quality output.
Description
Technical Field
The invention relates to the field of circuit board processing, in particular to a routing process for precisely controlling the appearance of a substrate.
Background
With the development of electronic technology, the PCB board has replaced the connection mode of the traditional electronic components and is widely applied to electronic products.
At present, in the PCB processing industry, in order to facilitate mass production and improve production efficiency, it is often necessary to first manufacture a whole PCB (also referred to as a whole printed circuit board) including a plurality of PCB single boards (also referred to as single PCS boards or printed circuit boards); then, the whole PCB is processed to form a plurality of single PCB boards and/or a PCB connecting board (also called a printed circuit connecting board) which is convenient for board division.
The method for processing the appearance of the whole PCB mainly comprises V-CUT, beer board and gong board. The V-CUT is to CUT a V-shaped straight line shallow groove at the position of the whole PCB board needing board splitting, and the PCB single board can be broken off with the help of the V-shaped shallow groove in a labor-saving way. The beer board is also called as punching type, which is to punch a PCB connecting board or a plurality of PCB single boards by a punch press, and the required shape can be punched by the method, and the method is suitable for mass production. The beer board has the defects that the mould opening is needed, the time and the labor are wasted, the edge roughness of the board after the board separation is larger, and the board scraps are more. The routing is to use the routing machine to route the predetermined shape on the monoblock PCB board, in order to form PCB and link the board or a plurality of PCB single-boards, the routing machine is the milling machine that can carry on the appearance processing to the PCB board, in the invention, do not distinguish between "routing" and "milling". Because the PCB produced by the routing mode has smooth edges and accurate size, the time and the cost can be greatly saved in the aspects of small batch and sample plate output, and therefore the routing mode is the preferred mode of the PCB appearance processing technology.
The PCB routing is an important process in the PCB manufacturing process, and the PCB routing refers to cutting a substrate according to a processing program of engineering design by a routing tool so as to obtain a forming unit. The accuracy of routing determines the dimensional accuracy of the forming units in the substrate, and further determines whether the subsequent processing causes the circuit board to be a defective product due to the dimensional accuracy. Therefore, how to control the precision of the routing process of the substrate is important to control the size of the forming unit.
Disclosure of Invention
The invention aims to provide a routing process for precisely controlling the appearance of a substrate, which can effectively solve the problems in the background technology.
The technical problem to be solved by the invention is realized by adopting the following technical scheme:
a gong board technology for the appearance of accurate control base plate provides the monoblock base plate that wants to gong the board, and this monoblock base plate includes two at least shaping units, still includes following step:
s1, measuring the expansion and contraction conditions of the external dimension of the substrate, producing the substrate normally when the deviation of the external dimension is less than or equal to 2mil, listing data information corresponding to stretching when the external dimension is greater than 2mil, and processing the substrate according to actual data when the substrate is milled;
s2, positioning the gong board, drilling the base plate and the cushion plate, fixing the cushion plate on the gong machine, fixing the base plate and the cushion plate through a positioning pin, and positioning the base plate;
s3, setting parameters, inputting positioning data, inputting substrate data, and setting processing parameters; the deflection degree of a main shaft of the gong machine is firstly tested during production, and the deflection of each shaft is less than 30 mu m;
s4, carrying out rough routing and grooving, and carrying out inner groove grooving on the inner side of the forming unit through a rough routing knife;
s5, fine gong cutting, namely cutting the inner grooves and the periphery of the forming units by a fine gong cutter;
s6, confirming the size of the first cut forming unit, and entering mass production when the size meets the requirement;
and S7, carrying out QA sampling inspection in the production process.
Wherein the diameter range of the coarse routing knife is 1.5 mm-2.4 mm. The tolerance of the coarse routing knife in the diameter range for routing is +/-0.03 mm.
Wherein the diameter range of the fine gong knife is 0.8 mm-1.2 mm. The tolerance of the milling cutter in the diameter range is +/-0.02 mm.
When a coarse routing knife is used for slotting, the rotation speed of the routing knife is 32-33 krpm, the feed speed is 1.5-1.6 m/min, the return speed is 10m/min, the advancing speed is 12-14 mm/s, the blade length is 8.5-10.5 mm, the total thickness of the laminated plate is less than or equal to 4mm, and the number of the laminated plates is less than or equal to 2.
When the fine routing knife is used for slotting, the rotation speed of the routing knife is 38-39 krpm, the feed speed is 0.8-1.0 m/min, the return speed is 10m/min, the advancing speed is 2-4 mm/s, the blade length is 5.0-6.0 mm, the total thickness of the laminated plate is less than or equal to 4mm, and the number of the laminated plates is less than or equal to 2.
When the board is milled, the tolerance is controlled to be +/-0.05 mm so as to prevent the problem of batch external dimension; and measuring the three-dimensional element of the substrate once every two times of routing, and measuring the edge size and the peripheral size of the hole of the substrate by using a caliper at each time.
The invention has the beneficial effects that:
the invention reduces the scrappage problem caused by the unqualified size, improves the appearance quality, reduces the scrappage rate, and meets the size requirement of a customer with low cost input and high quality output.
Detailed Description
The present invention is further described in order to make the technical means, the creation features, the achievement purposes and the effects of the present invention easy to understand.
Example 1
A gong board technology for the appearance of accurate control base plate provides the monoblock base plate that wants to gong the board, and this monoblock base plate includes two at least shaping units, still includes following step:
s1, measuring the expansion and contraction conditions of the external dimension of the substrate, producing the substrate normally when the deviation of the external dimension is less than or equal to 2mil, listing data information corresponding to stretching when the external dimension is greater than 2mil, and processing the substrate according to actual data when the substrate is milled;
s2, positioning the gong board, drilling the base plate and the cushion plate, fixing the cushion plate on the gong machine, fixing the base plate and the cushion plate through a positioning pin, and positioning the base plate; s3, setting parameters, inputting positioning data, inputting substrate data, and setting processing parameters;
s4, carrying out rough routing and grooving, and carrying out inner groove grooving on the inner side of the forming unit through a rough routing knife; the diameter range of the coarse routing knife is 1.5 mm;
s5, fine gong cutting, namely cutting the inner grooves and the periphery of the forming units by a fine gong cutter; the diameter range of the fine routing knife is 0.8 mm;
s6, confirming the size of the first cut forming unit, and entering mass production when the size meets the requirement;
and S7, performing QA spot check in the production process, measuring the three-dimensional element of the substrate once every two times of routing the substrate, and measuring the edge size and the peripheral size of the hole by using a caliper for the substrate every time.
When a coarse routing knife is used for grooving, the rotation speed of the routing knife is 32krpm, the feed speed is 1.5/min, the return speed is 10m/min, the advancing speed is 12mm/s, the edge length is 8.5mm, the total thickness of laminated plates is less than or equal to 4mm, and the number of the laminated plates is less than or equal to 2.
When the fine routing knife is used for slotting, the rotation speed of the routing knife is 38krpm, the feed speed is 0.8, the return speed is 10m/min, the advancing speed is 2mm/s, the edge length is 5.0mm, the total thickness of the laminated plates is less than or equal to 4mm, and the number of the laminated plates is less than or equal to 2.
Example 2
A gong board technology for the appearance of accurate control base plate provides the monoblock base plate that wants to gong the board, and this monoblock base plate includes two at least shaping units, still includes following step:
s1, measuring the expansion and contraction conditions of the external dimension of the substrate, producing the substrate normally when the deviation of the external dimension is less than or equal to 2mil, listing data information corresponding to stretching when the external dimension is greater than 2mil, and processing the substrate according to actual data when the substrate is milled;
s2, positioning the gong board, drilling the base plate and the cushion plate, fixing the cushion plate on the gong machine, fixing the base plate and the cushion plate through a positioning pin, and positioning the base plate;
s3, setting parameters, inputting positioning data, inputting substrate data, and setting processing parameters;
s4, carrying out rough routing and grooving, and carrying out inner groove grooving on the inner side of the forming unit through a rough routing knife; the diameter range of the coarse routing knife is 2.4 mm;
s5, fine gong cutting, namely cutting the inner grooves and the periphery of the forming units by a fine gong cutter; the diameter range of the fine routing knife is 1.2 mm;
s6, confirming the size of the first cut forming unit, and entering mass production when the size meets the requirement;
and S7, performing QA spot check in the production process, measuring the three-dimensional element of the substrate once every two times of routing the substrate, and measuring the edge size and the peripheral size of the hole by using a caliper for the substrate every time.
When a coarse routing knife is used for grooving, the rotation speed of the routing knife is 33krpm, the feed speed is 1.6m/min, the return speed is 10m/min, the advancing speed is 14mm/s, the blade length is 10.5mm, the total thickness of laminated plates is less than or equal to 4mm, and the number of the laminated plates is less than or equal to 2.
When the fine routing knife is used for slotting, the rotation speed of the routing knife is 39krpm, the feed speed is 1.0m/min, the return speed is 10m/min, the advancing speed is 4mm/s, the blade length is 6.0mm, the total thickness of the laminated plates is less than or equal to 4mm, and the number of the laminated plates is less than or equal to 2.
Example 3
A gong board technology for the appearance of accurate control base plate provides the monoblock base plate that wants to gong the board, and this monoblock base plate includes two at least shaping units, still includes following step:
s1, measuring the expansion and contraction conditions of the external dimension of the substrate, producing the substrate normally when the deviation of the external dimension is less than or equal to 2mil, listing data information corresponding to stretching when the external dimension is greater than 2mil, and processing the substrate according to actual data when the substrate is milled;
s2, positioning the gong board, drilling the base plate and the cushion plate, fixing the cushion plate on the gong machine, fixing the base plate and the cushion plate through a positioning pin, and positioning the base plate;
s3, setting parameters, inputting positioning data, inputting substrate data, and setting processing parameters;
s4, carrying out rough routing and grooving, and carrying out inner groove grooving on the inner side of the forming unit through a rough routing knife; the diameter range of the coarse routing knife is 1.9 mm;
s5, fine gong cutting, namely cutting the inner grooves and the periphery of the forming units by a fine gong cutter; the diameter range of the fine routing knife is 1.1 mm;
s6, confirming the size of the first cut forming unit, and entering mass production when the size meets the requirement;
and S7, performing QA spot check in the production process, measuring the three-dimensional element of the substrate once every two times of routing the substrate, and measuring the edge size and the peripheral size of the hole by using a caliper for the substrate every time.
When a coarse routing knife is used for grooving, the rotation speed of the routing knife is 33krpm, the feed speed is 1.6m/min, the return speed is 10m/min, the advancing speed is 13mm/s, the edge length is 9mm, the total thickness of laminated plates is less than or equal to 4mm, and the number of the laminated plates is less than or equal to 2.
When the fine routing knife is used for slotting, the rotation speed of the routing knife is 39krpm, the feed speed is 0.9m/min, the return speed is 10m/min, the advancing speed is 3mm/s, the blade length is 5.5mm, the total thickness of the laminated plates is less than or equal to 4mm, and the number of the laminated plates is less than or equal to 2.
The foregoing is a detailed description of the invention, which is described in greater detail and not intended to limit the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications are possible without departing from the inventive concept, and such obvious alternatives fall within the scope of the invention.
Claims (2)
1. A gong board technology for accurate control base plate appearance, its characterized in that provides the monoblock base plate that wants to gong the board, and this monoblock base plate includes two at least shaping units, still includes following step:
s1, measuring the expansion and contraction conditions of the external dimension of the substrate, producing the substrate normally when the deviation of the external dimension is less than or equal to 2mil, listing data information corresponding to stretching when the external dimension is greater than 2mil, and processing the substrate according to actual data when the substrate is milled;
s2, positioning the gong board, drilling the base plate and the cushion plate, fixing the cushion plate on the gong machine, fixing the base plate and the cushion plate through a positioning pin, and positioning the base plate;
s3, setting parameters, inputting positioning data, inputting substrate data, and setting processing parameters;
s4, carrying out rough routing and grooving, carrying out inner groove grooving on the inner side of the forming unit through a rough routing knife, wherein the diameter range of the rough routing knife is 1.5-2.4 mm, when the rough routing knife is adopted for grooving, the rotation speed of the routing knife is 32-33 krpm, the feed speed is 1.5-1.6 m/min, the backcutting speed is 10m/min, the advancing speed is 12-14 mm/S, the edge length is 8.5-10.5 mm, the total thickness of the laminated plate is less than or equal to 4mm, and the number of the laminated plates is less than or equal to 2;
s5, fine gong cutting, namely cutting the inner groove and the periphery of the forming unit through a fine gong cutter, wherein the diameter range of the fine gong cutter is 0.8-1.2 mm, when the fine gong cutter is used for grooving, the rotation speed of the gong cutter is 38-39 krpm, the feed speed is 0.8-1.0 m/min, the return speed is 10m/min, the advancing speed is 2-4 mm/S, the edge length is 5.0-6.0 mm, the total thickness of laminated plates is less than or equal to 4mm, and the number of the laminated plates is less than or equal to 2;
s6, confirming the size of the first cut forming unit, and entering mass production when the size meets the requirement;
and S7, carrying out QA sampling inspection in the production process.
2. A routing process for precisely controlling the profile of a substrate according to claim 1, wherein: and measuring the three-dimensional element of the substrate once every two times of routing, and measuring the edge size and the peripheral size of the hole of the substrate by using a caliper at each time.
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| CN201710759756.8A CN107708305B (en) | 2017-08-30 | 2017-08-30 | Routing process for precisely controlling appearance of substrate |
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| CN201710759756.8A CN107708305B (en) | 2017-08-30 | 2017-08-30 | Routing process for precisely controlling appearance of substrate |
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| CN107708305B true CN107708305B (en) | 2020-05-19 |
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| CN108668447A (en) * | 2018-07-13 | 2018-10-16 | 常州澳弘电子有限公司 | A kind of processing technology of the full-scale wiring board of precision |
| CN109780961A (en) * | 2019-02-01 | 2019-05-21 | 奥士康精密电路（惠州）有限公司 | A kind of overall dimensions detection instrument and preparation method thereof |
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| CN110465689A (en) * | 2019-08-31 | 2019-11-19 | 重庆房地产职业学院 | Printed board mills the processing method of inside groove twice |
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| CN112235954A (en) * | 2020-10-29 | 2021-01-15 | 惠州市特创电子科技有限公司 | Processing method of circuit board |
| CN112351589B (en) * | 2020-11-03 | 2024-02-27 | 广东成德电子科技股份有限公司 | Mini LED circuit board processing method |
| CN113038715B (en) * | 2021-03-12 | 2022-06-24 | 江西旭昇电子有限公司 | One-time routing forming method for printed circuit board |
| CN114189993A (en) * | 2021-11-15 | 2022-03-15 | 新余市木林森线路板有限公司 | Circuit board high-precision forming programming design method |
| CN114340158A (en) * | 2021-12-06 | 2022-04-12 | 龙南骏亚柔性智能科技有限公司 | Novel circuit board narrow frame forming routing process |
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| CN105792518A (en) * | 2016-03-18 | 2016-07-20 | 奥士康科技股份有限公司 | Method for controlling size of high-precision finished product |
| 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 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102615318A (en) * | 2012-04-11 | 2012-08-01 | 景旺电子（深圳）有限公司 | Routing method for PCB (printed circuit board) |
| CN104640358A (en) * | 2014-12-17 | 2015-05-20 | 江苏博敏电子有限公司 | Half-hole plate manufacturing method |
| CN105228347A (en) * | 2015-08-14 | 2016-01-06 | 景旺电子科技(龙川)有限公司 | A kind of PCB jigsaw gong plate method |
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