CN113411975A - Routing method for PTH groove tangent to forming edge - Google Patents
Routing method for PTH groove tangent to forming edge Download PDFInfo
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- CN113411975A CN113411975A CN202110715141.1A CN202110715141A CN113411975A CN 113411975 A CN113411975 A CN 113411975A CN 202110715141 A CN202110715141 A CN 202110715141A CN 113411975 A CN113411975 A CN 113411975A
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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
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Abstract
The invention provides a routing method for a PTH groove tangent to a forming edge, which comprises the following steps: A. designing routing data: including tangent position data design and data design mirror image; B. routing parameters are controlled; C. and a cover plate is added on the surface. Through experimental verification, the invention provides a whole set of method suitable for solving the problem of tangency between the PTH groove and the gong edge, which can effectively improve the product quality, and can output with low cost, high quality and high efficiency to meet the quality requirements of customers.
Description
Technical Field
The invention belongs to the technical field of PCBs, and particularly relates to a routing method for a PTH groove tangent to a forming edge.
Background
With the rapid development of the electronic product industry, the updating speed of electronic products is changing day by day, the demand of the corresponding PCB capacity is also rapidly increased, and meanwhile, with the improvement of the product quality requirement of people, the electronic industry must take the market with high quality and high efficiency.
In the prior art, the routing mode that generally adopts does: the tangent position is spread copper and is cut mutually with gong limit, and the gong limit is directly gong mode processing once, and this kind of way cutter walking overstroke can produce and roll up copper, draw copper, drape over one's shoulders scheduling problem to influence the product quality, need artifical the repair, repair thoroughly and can cause badly to scrap and the visitor complains.
Disclosure of Invention
In view of the above, the present invention provides a method for routing a PTH groove tangent to a forming edge.
The technical scheme of the invention is as follows:
a routing method for a PTH groove tangent to a forming edge is characterized by comprising the following steps:
A. designing routing data: including tangent position data design and data design mirror image;
B. routing parameters are controlled;
C. and a cover plate is added on the surface.
Furthermore, the design of routing data is that the plane is turned over 180 degrees on the original basis, and the original surface is designed to rotate downwards.
Further, milling twice during milling data manufacturing, including rough milling and fine finishing; wherein, the design size of the coarse gong is 0.1-0.25mm smaller than the single side of the actual size, and the 0.1-0.25mm reserved on the single side is repaired by fine trimming, so that the size precision is effectively controlled.
Further, after the routing positioning is finished, the routing is carried out according to the number of stacked boards, a cover plate with the thickness of 0.1-0.8mm is additionally arranged on the uppermost layer, the cutter teeth spirally coil copper to the cover plate position for separation when the cutter cuts, and then the finishing cutter repairs the copper coil at the cover plate position.
Further, the gong parameters are controlled, and the gong head rotating speed is mainly adjusted up by 10-20%, and the lower cutting speed and the gong board speed are mainly adjusted down by 25-35% according to the gong parameters. The rough routing cutter is lowered by 35-60% on the basis of the original cutter, and the finish machining cutter is lowered by 15-35%.
Furthermore, the method also comprises setting of a compensation value, wherein the compensation and fine adjustment are carried out once for 0.01-0.03mm when the compensation value of each cutter is 28-32% of the total service life of the cutter, so as to pre-compensate the cutter abrasion. For example: the total service life of 1.8mm is 60m and the compensation value is 1.88mm, and the compensation value is finely adjusted to 1.86mm when the cutter is used to 18 m.
In the invention, all the parameters are adjusted up or down based on the processing parameters of the prior art; the skilled person can adjust the method according to the original production situation.
Further, after the board is milled, whether the milling effect of the bottom board is consistent or not is checked.
Furthermore, the stability of the machine is controlled, the deflection of the main shaft is controlled to be less than or equal to 20um, and the deviation of the diagonal is controlled to be less than or equal to 0.1 mm.
Furthermore, the device also comprises tolerance control, wherein the inner tank is controlled according to 50-60% of the median upper limit tolerance, and the periphery is controlled according to 50-60% of the median lower limit tolerance.
Furthermore, the tangent position adopts 2 times of gong design, the thick gong adopts clockwise cutting, and the finish adopts anticlockwise cutting, can effectively with the separation about the tangent interface position copper skin.
Through experimental verification, the invention provides a whole set of method suitable for solving the problem of tangency between the PTH groove and the gong edge, which can effectively improve the product quality, and can output with low cost, high quality and high efficiency to meet the quality requirements of customers.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments. It should be understood that the detailed description and specific examples, while indicating the scope of the invention, are intended for purposes of illustration only and are not intended to limit the scope of the invention.
Example 1
A routing method for a PTH groove tangent to a forming edge is characterized by comprising the following steps:
A. designing routing data: including tangent position data design and data design mirror image;
B. routing parameters are controlled;
C. and a cover plate is added on the surface.
Furthermore, the design of routing data is that the plane is turned over 180 degrees on the original basis, and the original surface is designed to rotate downwards.
Further, milling twice during milling data manufacturing, including rough milling and fine finishing; wherein, thick gong design size is less than the unilateral 0.15mm of actual size, and the 0.15mm that the finish was remained the unilateral is repaiied away, effective management and control size precision.
Further, after the routing positioning is finished, the routing is carried out according to the number of stacked plates, a cover plate with the thickness of 0.3mm is added on the uppermost layer, the cutter teeth spirally coil copper to the cover plate to be separated when the cutter cuts, and then the finishing cutter repairs the copper coil on the cover plate.
Further, the gong parameters are controlled, and the gong head rotating speed is mainly adjusted up by 15%, the lower cutting speed and the gong board speed are mainly adjusted down by 30% according to the gong parameters. The rough milling cutter is reduced by 50% on the basis of the original cutter, and the finish milling cutter is reduced by 25%.
Furthermore, the method also comprises the setting of a compensation value, wherein the compensation and fine adjustment of each cutter compensation value is carried out once by 0.02mm when the total service life of the cutter is 30 percent, so that the abrasion of the cutter is pre-compensated.
In the invention, all the parameters are adjusted up or down based on the processing parameters of the prior art; the skilled person can adjust the method according to the original production situation.
Further, after the board is milled, whether the milling effect of the bottom board is consistent or not is checked.
Furthermore, the stability of the machine is controlled, the deflection of the main shaft is controlled to be less than or equal to 20um, and the deviation of the diagonal is controlled to be less than or equal to 0.1 mm.
Furthermore, the device also comprises tolerance control, wherein the inner tank is controlled according to 50-60% of the median upper limit tolerance, and the periphery is controlled according to 50-60% of the median lower limit tolerance.
Furthermore, the tangent position adopts 2 times of gong design, the thick gong adopts clockwise cutting, and the finish adopts anticlockwise cutting, can effectively with the separation about the tangent interface position copper skin.
Example 2
A routing method for a PTH groove tangent to a forming edge is characterized by comprising the following steps:
A. designing routing data: including tangent position data design and data design mirror image;
B. routing parameters are controlled;
C. and a cover plate is added on the surface.
Furthermore, the design of routing data is that the plane is turned over 180 degrees on the original basis, and the original surface is designed to rotate downwards.
Further, milling twice during milling data manufacturing, including rough milling and fine finishing; wherein, thick gong design size is less than the unilateral 0.1mm of actual size, and the 0.1mm that the finish was remained the unilateral is repaiied, effective management and control size precision.
Further, after the routing positioning is finished, the routing is carried out according to the number of stacked plates, a cover plate with the thickness of 0.2mm is added on the uppermost layer, the cutter teeth spirally coil copper to the cover plate to be separated when the cutter cuts, and then the finishing cutter repairs the copper coil on the cover plate.
Further, the gong parameters are controlled, and the gong head rotating speed is mainly adjusted up by 10%, the lower cutting speed and the gong board speed are mainly adjusted down by 25% according to the gong parameters. The rough milling cutter is reduced by 35% on the basis of the original cutter, and the finish milling cutter is reduced by 15%.
Furthermore, the method also comprises the setting of a compensation value, wherein the compensation and the fine adjustment are carried out once by 0.01mm when the compensation value of each cutter is 28 percent of the total service life of the cutter, so as to pre-compensate the cutter abrasion.
In the invention, all the parameters are adjusted up or down based on the processing parameters of the prior art; the skilled person can adjust the method according to the original production situation.
Further, after the board is milled, whether the milling effect of the bottom board is consistent or not is checked.
Furthermore, the stability of the machine is controlled, the deflection of the main shaft is controlled to be less than or equal to 20um, and the deviation of the diagonal is controlled to be less than or equal to 0.1 mm.
Furthermore, the device also comprises tolerance control, wherein the inner tank is controlled according to 50-60% of the median upper limit tolerance, and the periphery is controlled according to 50-60% of the median lower limit tolerance.
Furthermore, the tangent position adopts 2 times of gong design, the thick gong adopts clockwise cutting, and the finish adopts anticlockwise cutting, can effectively with the separation about the tangent interface position copper skin.
Example 3
A routing method for a PTH groove tangent to a forming edge is characterized by comprising the following steps:
A. designing routing data: including tangent position data design and data design mirror image;
B. routing parameters are controlled;
C. and a cover plate is added on the surface.
Furthermore, the design of routing data is that the plane is turned over 180 degrees on the original basis, and the original surface is designed to rotate downwards.
Further, milling twice during milling data manufacturing, including rough milling and fine finishing; wherein, thick gong design size is less than the unilateral 0.25mm of actual size, and the 0.25mm that the finish was remained the unilateral is repaiied, effective management and control size precision.
Further, after the routing positioning is finished, the routing is carried out according to the number of stacked boards, a cover plate with the thickness of 0.1-0.8mm is additionally arranged on the uppermost layer, the cutter teeth spirally coil copper to the cover plate position for separation when the cutter cuts, and then the finishing cutter repairs the copper coil at the cover plate position.
Further, the gong parameters are controlled, and the gong head rotating speed is mainly adjusted up by 20%, the lower cutting speed and the gong board speed are adjusted down by 35% according to the gong parameters. The rough milling cutter is reduced by 60% on the basis of the original cutter, and the finish milling cutter is reduced by 35%.
Furthermore, the method also comprises the setting of a compensation value, wherein the compensation and fine adjustment of each cutter compensation value is carried out once by 0.03mm when the total service life of the cutter is 32%, so that the abrasion of the cutter is pre-compensated.
In the invention, all the parameters are adjusted up or down based on the processing parameters of the prior art; the skilled person can adjust the method according to the original production situation.
Further, after the board is milled, whether the milling effect of the bottom board is consistent or not is checked.
Furthermore, the stability of the machine is controlled, the deflection of the main shaft is controlled to be less than or equal to 20um, and the deviation of the diagonal is controlled to be less than or equal to 0.1 mm.
Furthermore, the device also comprises tolerance control, wherein the inner tank is controlled according to 50-60% of the median upper limit tolerance, and the periphery is controlled according to 50-60% of the median lower limit tolerance.
Furthermore, the tangent position adopts 2 times of gong design, the thick gong adopts clockwise cutting, and the finish adopts anticlockwise cutting, can effectively with the separation about the tangent interface position copper skin.
Example 4
A routing method for a PTH groove tangent to a forming edge is characterized by comprising the following steps:
A. designing routing data: including tangent position data design and data design mirror image;
B. routing parameters are controlled;
C. and a cover plate is added on the surface.
Furthermore, the design of routing data is that the plane is turned over 180 degrees on the original basis, and the original surface is designed to rotate downwards.
Further, milling twice during milling data manufacturing, including rough milling and fine finishing; wherein, thick gong design size is less than the unilateral 0.2mm of actual size, and the 0.2mm that the finish was remained the unilateral is repaiied, effective management and control size precision.
Further, after the routing positioning is finished, the routing is carried out according to the number of stacked plates, a cover plate with the thickness of 0.5mm is added on the uppermost layer, the cutter teeth spirally coil copper to the cover plate to be separated when the cutter cuts, and then the finishing cutter repairs the copper coil on the cover plate.
Further, the gong parameters are controlled, and the gong head rotating speed is mainly adjusted up by 12%, the lower cutting speed and the gong board speed are mainly adjusted down by 27% according to the gong parameters. The rough milling cutter is reduced by 40% on the basis of the original cutter, and the finish milling cutter is reduced by 20%.
Furthermore, the method also comprises the setting of a compensation value, wherein the compensation and the fine adjustment are carried out once by 0.01mm when the compensation value of each cutter is 28 percent of the total service life of the cutter, so as to pre-compensate the cutter abrasion.
In the invention, all the parameters are adjusted up or down based on the processing parameters of the prior art; the skilled person can adjust the method according to the original production situation.
Further, after the board is milled, whether the milling effect of the bottom board is consistent or not is checked.
Furthermore, the stability of the machine is controlled, the deflection of the main shaft is controlled to be less than or equal to 20um, and the deviation of the diagonal is controlled to be less than or equal to 0.1 mm.
Furthermore, the device also comprises tolerance control, wherein the inner tank is controlled according to 50-60% of the median upper limit tolerance, and the periphery is controlled according to 50-60% of the median lower limit tolerance.
Furthermore, the tangent position adopts 2 times of gong design, the thick gong adopts clockwise cutting, and the finish adopts anticlockwise cutting, can effectively with the separation about the tangent interface position copper skin.
Example 5
A routing method for a PTH groove tangent to a forming edge is characterized by comprising the following steps:
A. designing routing data: including tangent position data design and data design mirror image;
B. routing parameters are controlled;
C. and a cover plate is added on the surface.
Furthermore, the design of routing data is that the plane is turned over 180 degrees on the original basis, and the original surface is designed to rotate downwards.
Further, milling twice during milling data manufacturing, including rough milling and fine finishing; wherein, thick gong design size is less than the unilateral 0.15mm of actual size, and the 0.15mm that the finish was remained the unilateral is repaiied away, effective management and control size precision.
Further, after the routing positioning is finished, the routing is carried out according to the number of stacked plates, a cover plate with the thickness of 0.6mm is added on the uppermost layer, the cutter teeth spirally coil copper to the cover plate to be separated when the cutter cuts, and then the finishing cutter repairs the copper coil on the cover plate.
Further, the gong parameters are controlled, and the gong head rotating speed is mainly adjusted up by 18%, the lower cutting speed and the gong board speed are mainly adjusted down by 32% according to the gong parameters. The rough milling cutter is reduced by 55% on the basis of the original cutter, and the fine milling cutter is reduced by 30%.
Furthermore, the method also comprises the setting of a compensation value, wherein the compensation and fine adjustment of each cutter compensation value is carried out once by 0.02mm when the total service life of the cutter is 32%, so that the abrasion of the cutter is pre-compensated.
In the invention, all the parameters are adjusted up or down based on the processing parameters of the prior art; the skilled person can adjust the method according to the original production situation.
Further, after the board is milled, whether the milling effect of the bottom board is consistent or not is checked.
Furthermore, the stability of the machine is controlled, the deflection of the main shaft is controlled to be less than or equal to 20um, and the deviation of the diagonal is controlled to be less than or equal to 0.1 mm.
Furthermore, the device also comprises tolerance control, wherein the inner tank is controlled according to 50-60% of the median upper limit tolerance, and the periphery is controlled according to 50-60% of the median lower limit tolerance.
Furthermore, the tangent position adopts 2 times of gong design, the thick gong adopts clockwise cutting, and the finish adopts anticlockwise cutting, can effectively with the separation about the tangent interface position copper skin.
By the aid of the routing method, the following economic and technical indexes are measured and calculated by combining actual production conditions of enterprises:
1. the scrap rate of 60 square meters caused by poor copper drawing per month and the scrap cost can be reduced by pressing the price of a multilayer board per square meter as 900 yuan: 900 square meters per square meter =5.4 ten thousand per month;
2. manual repair cost of copper coil: 2 people repairs per shift 2 shifts 5000 yuan/person 12 months =24 ten thousand yuan/year; the cost is saved each year: 12 months =64.8 ten thousand yuan per month; 64.8 ten thousand yuan +24 ten thousand =88.8 ten thousand yuan/year.
3. In addition, customer complaints can be effectively avoided, and more orders can be won.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art. It should be noted that the technical features not described in detail in the present invention can be implemented by any prior art in the field.
Claims (10)
1. A routing method for a PTH groove tangent to a forming edge is characterized by comprising the following steps:
A. designing routing data: including tangent position data design and data design mirror image;
B. routing parameters are controlled;
C. and a cover plate is added on the surface.
2. The method of claim 1, wherein the routing design is based on a flat-face flip of 180 ° to rotate the original face downward.
3. The method of claim 2, wherein the routing information is routed twice during routing, including rough routing and finishing; wherein the design size of the coarse gong is 0.1-0.25mm smaller than the single side of the actual size, and the 0.1-0.25mm reserved on the single side is repaired by fine trimming.
4. A method according to claim 1, wherein the routing is performed by stacking a plurality of boards after the routing is completed, and adding a 0.1-0.8mm cover board on the top layer, and the copper is separated from the cover board by the cutter teeth and then repaired by the finishing cutter.
5. The method for routing a PTH groove tangent to a forming edge of claim 1, wherein routing parameters are controlled by mainly adjusting the gong head speed up by 10-20%, the lower cutting speed and the gong speed down by 25-35% with respect to the routing parameters.
6. The method of claim 5 wherein the rough routing tool is lowered by 35-60% and the finishing tool is lowered by 15-35% based on the original routing tool.
7. A method according to claim 6, further comprising setting a compensation value to compensate for the tool wear by fine tuning 0.01-0.03mm per tool compensation value at 28-32% of the total tool life.
8. The PTH groove and forming edge tangent routing method of claim 7, further comprising controlling machine stability, spindle yaw at 20 μm or less and diagonal deviation at 0.1mm or less.
9. The method of routing a PTH slot tangent to a formed edge of claim 8, further comprising tolerance control, wherein the inner slot is controlled to a median upper tolerance of 50% to 60% and the outer slot is controlled to a median lower tolerance of 50% to 60%.
10. A method according to any of claims 5-9, wherein the tangent position is 2 gong designs, the rough gong is cut clockwise and the finishing is cut counter-clockwise.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110715141.1A CN113411975A (en) | 2021-06-26 | 2021-06-26 | Routing method for PTH groove tangent to forming edge |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110715141.1A CN113411975A (en) | 2021-06-26 | 2021-06-26 | Routing method for PTH groove tangent to forming edge |
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| CN113411975A true CN113411975A (en) | 2021-09-17 |
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| CN202110715141.1A Pending CN113411975A (en) | 2021-06-26 | 2021-06-26 | Routing method for PTH groove tangent to forming edge |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| 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 |
| CN114710881A (en) * | 2022-03-15 | 2022-07-05 | 金禄电子科技股份有限公司 | Semi-metallized hole routing processing method and thick-copper semi-hole circuit board |
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| CN111818721A (en) * | 2020-06-28 | 2020-10-23 | 肇庆昌隆电子有限公司 | Multilayer PCB laminating cover plate and preparation method thereof |
| CN112040652A (en) * | 2020-08-24 | 2020-12-04 | 胜宏科技（惠州）股份有限公司 | Forming method for improving PTH half-hole burrs |
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| CN108668446A (en) * | 2018-06-29 | 2018-10-16 | 奥士康精密电路（惠州）有限公司 | A kind of pcb board half bore gong plate processing structure and machining method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| 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 |
| CN114710881A (en) * | 2022-03-15 | 2022-07-05 | 金禄电子科技股份有限公司 | Semi-metallized hole routing processing method and thick-copper semi-hole circuit board |
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