WO2020006983A1 - 一种内置式螺母台阶孔pcb板快速加工方法 - Google Patents

一种内置式螺母台阶孔pcb板快速加工方法 Download PDF

Info

Publication number
WO2020006983A1
WO2020006983A1 PCT/CN2018/119849 CN2018119849W WO2020006983A1 WO 2020006983 A1 WO2020006983 A1 WO 2020006983A1 CN 2018119849 W CN2018119849 W CN 2018119849W WO 2020006983 A1 WO2020006983 A1 WO 2020006983A1
Authority
WO
WIPO (PCT)
Prior art keywords
built
nut
drilling
step hole
hole
Prior art date
Application number
PCT/CN2018/119849
Other languages
English (en)
French (fr)
Inventor
乔元
聂兴培
武守坤
陈春
林映生
卫雄
唐宏华
樊廷慧
Original Assignee
惠州市金百泽电路科技有限公司
深圳市金百泽电子科技股份有限公司
西安金百泽电路科技有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 惠州市金百泽电路科技有限公司, 深圳市金百泽电子科技股份有限公司, 西安金百泽电路科技有限公司 filed Critical 惠州市金百泽电路科技有限公司
Publication of WO2020006983A1 publication Critical patent/WO2020006983A1/zh

Links

Classifications

    • 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
    • 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
    • H05K2203/0214—Back-up or entry material, e.g. for mechanical drilling

Definitions

  • the invention relates to the field of PCB board processing, in particular to a method for quickly processing a PCB board with a built-in nut step hole.
  • the fastening nuts of such boards are basically embedded in the PCB board, and the bottom of the nut is flush with the bottom of the circuit board, which not only saves space, but also prevents metal screws from contacting the equipment case to form a short circuit or leakage.
  • the inlay nut PCB needs to cut the PCB before pressing, and then fix the nut in the PCB by means of hot pressing of the press. There are certain deviations in the manufacturing process of the circuit board, so the process is difficult and the quality is difficult to guarantee. Maintenance is extremely inconvenient. If the nut is damaged, you need to replace the board. ...
  • the built-in nut is used to mill the nut-shaped step hole in the circuit board processing and molding process according to the shape and size requirements of the nut.
  • the nut is placed in the milled step hole and the screw is installed.
  • the cap is tight.
  • the improved nut installation method simplifies the PCB processing process and facilitates the later maintenance of the board.
  • the forming process is basically a bottleneck process.
  • the average time per hole for a CNC milling step is about 5 minutes.
  • Each working board is calculated based on 200 holes.
  • a method for quickly processing a PCB board with a built-in nut step hole includes the following steps:
  • the depth-drilling and countersinking method is used to process the built-in nut stepped hole.
  • the drilling depth is calculated by the tip of the drill tip in contact with the metal.
  • the tip of the nozzle cannot conduct electricity, which results in a large deviation in depth control.
  • the stepped hole of the built-in nut will also be coppered, which will cause the inner diameter of the stepped hole to change, affecting the nut installation.
  • the technical process is designed to process the built-in nut stepped hole after the electric tin is made, so that the drill tip has better conductive contact with the copper and tin, and the depth and inner diameter accuracy of the built-in nut stepped hole can be controlled, avoiding the nut being installed on After the copper step holes are in contact with the PCB, they cause a short circuit.
  • the present invention calculates the machining scheme based on the size of the built-in nut and the accuracy of the drilling rig, which completely guarantees that the internal diameter is qualified.
  • the size of the built-in nut is equal to the size of the lower diameter, ⁇ is 90 °, and the angle of the built-in nut is not required.
  • Less than the upper diameter calculate the number of ⁇ angles according to the calculation formula, and then select drills of the same diameter according to the upper diameter of the built-in nut, set the drilling depth according to the height of the built-in nut, and prepare the built-in according to the set parameters.
  • the stepped hole of the built-in nut can fully embed the built-in nut in the PCB board so that the bottom is flush with the substrate.
  • the built-in nut has no risk of falling off and meets the quality requirements.
  • the invention uses a drilling machine to quickly and automatically drill the built-in nut stepped hole technology instead of the gong machine to mill the built-in nut stepped hole technology, which can quickly improve the production efficiency by more than 10 times, and meet the needs of large-scale production of the enterprise, while saving time, Processing costs such as labor.
  • a linear motor is used to control the displacement accuracy device to correct the drill tip of the drill bit and the center of the built-in nut step hole on the same center line.
  • the accuracy control is set to ⁇ 0.01mm to accurately adjust the phase of the table.
  • the main shaft refers to the axis that the drilling rig drives the drill bit to rotate.
  • the main shaft yaw tester is used to measure the yaw of the main shaft of the drill. Passed. If the test fails, it needs to be calibrated and then tested to meet the production requirements.
  • the thickness of the PCB board and the board warpage are measured before drilling in S3. If the board thickness exceeds the standard or the board warpage, the board thickness or board warpage needs to be added to the depth of the built-in nut step hole before drilling. Increased thickness. When the thickness of the plate exceeds the standard, the depth of the stepped hole of the built-in nut that is drilled will be less than the height of the built-in nut, which will cause it to not be fully built-in. Before drilling, add the thickness of the plate or the thickness of the plate to the drilling depth. , Reduce the secondary processing of the prepared PCB board, and improve product yield.
  • the quality of the stepped hole of the built-in nut is measured, and the remaining thickness of the PCB board is measured first.
  • the thickness of the PCB board minus the remaining thickness is the depth of the stepped hole of the built-in nut.
  • the depth of the stepped hole of the built-in nut is smaller than the height of the built-in nut, and the depth of the stepped hole of the built-in nut is increased to make up the drill.
  • the plate thickness exceeds the standard, the plate deforms, or is placed unevenly, the depth of the stepped hole of the built-in nut drilled is smaller than the height of the built-in nut, resulting in the built-in nut not being fully built-in.
  • the increased depth is equal to the height of the built-in nut minus the depth of the stepped hole of the drilled built-in nut plus 0.1 mm. Adding 0.1mm to the thickness difference can ensure that the built-in nut is fully embedded in the stepped hole of the built-in nut, so that the bottom of the built-in nut is flush with the PCB.
  • the present invention develops and designs a technology that uses a drilling machine to quickly and automatically drill the built-in nut step hole step hole technology instead of the gong machine to mill the built-in nut step hole technology.
  • the built-in nut step hole drilling step can be added, which can quickly improve the production efficiency by more than 10 times, which can meet the needs of large-scale production of enterprises;
  • the invention optimizes the process flow of the built-in nut step hole, reduces the bottleneck capacity of the CNC milling machine in the forming process, and saves the processing cost, labor cost and hydropower cost of the forming machine;
  • the speed is fast, and there is no significant increase in production capacity, which is conducive to large-scale production of batch orders;
  • the invention adds a design for calculating the drilling rig machining scheme based on the nut size, which can completely guarantee the qualified internal diameter, make the bottom of the built-in nut flush with the PCB board, and ensure the built-in type after installation.
  • the nut does not have the risk of falling off, and at the same time avoids excessive machining size deviations that require secondary machining to reduce machining efficiency and product yield.
  • a method for quickly processing a PCB board with a built-in nut step hole according to the following steps:
  • stepped hole design of built-in nut measure the upper diameter of the built-in nut is 4mm, the length of the hypotenuse is 3.5mm, and the height is 2mm.
  • ⁇ 1 ArcSin (B ⁇ E)
  • Zh S3, built-in nut step hole processing Select a drilling rig with the function of depth drilling to complete drilling according to the built-in step hole design parameters designed by S2. Before drilling, linear motor control displacement accuracy equipment is used to correct the drill tip and the built-in drill bit.
  • the center of the step nut hole is on the same center line, the accuracy control is set to ⁇ 0.01mm, the verticality of the table surface with respect to the main shaft is accurately adjusted, and the main shaft yaw tester is used to measure the yaw value of the main shaft of the rig, and measure the PCB board Thickness and inspection of plate warpage, if there is plate thickness exceeding the standard or plate warpage, add the plate thickness or the increased thickness of plate warpage based on the depth of the built-in nut step hole before drilling;
  • a method for quickly processing a PCB board with a built-in nut step hole according to the following steps:
  • stepped hole design of built-in nut measure the upper diameter of the built-in nut is 4mm, the length of the hypotenuse is 3.5mm, and the height is 2mm.
  • ⁇ 1 ArcSin (B ⁇ E)
  • Zh S3, built-in nut step hole processing Select a drilling rig with the function of depth drilling to complete drilling according to the built-in step hole design parameters designed by S2. Before drilling, linear motor control displacement accuracy equipment is used to correct the drill tip and the built-in drill bit.
  • the center of the step nut hole is on the same center line, the accuracy control is set to ⁇ 0.01mm, the verticality of the table surface with respect to the main shaft is accurately adjusted, and the main shaft yaw tester is used to measure the yaw value of the main shaft of the rig, and measure the Thickness and inspection of plate warpage, if there is plate thickness exceeding the standard or plate warpage, add the plate thickness or the increased thickness of plate warpage based on the depth of the built-in nut step hole before drilling;
  • a method for quickly processing a PCB board with a built-in nut step hole according to the following steps:
  • stepped hole design of built-in nut measure the upper diameter of the built-in nut is 6mm, the length of the hypotenuse is 10mm, and the height is 3mm.
  • ⁇ 1 ArcSin (B ⁇ E)
  • the number of top angles of the nut is 15 °
  • the number of step holes for the built-in nut drilled in the design unit is 127
  • 90 plates are produced in batches.
  • the angle of the bottom of the drill bit is selected, and the depth of the stepped hole of the built-in nut is set according to the height of the built-in nut;
  • Zh S3, built-in nut step hole processing Select a drilling rig with the function of depth drilling to complete drilling according to the built-in step hole design parameters designed by S2. Before drilling, linear motor control displacement accuracy equipment is used to correct the drill tip and the built-in drill bit.
  • the center of the step nut hole is on the same center line, the accuracy control is set to ⁇ 0.01mm, the verticality of the table surface with respect to the main shaft is accurately adjusted, and the main shaft yaw tester is used to measure the yaw value of the main shaft of the rig, and measure the Thickness and inspection of plate warpage, if there is plate thickness exceeding the standard or plate warpage, add the plate thickness or the increased thickness of plate warpage based on the depth of the built-in nut step hole before drilling;
  • a method for quickly processing a PCB board with a built-in nut step hole according to the following steps:
  • Zh S3, built-in nut step hole processing Select a drilling rig with the function of depth drilling to complete drilling according to the built-in step hole design parameters designed by S2. Before drilling, linear motor control displacement accuracy equipment is used to correct the drill tip and the built-in drill bit.
  • the center of the step nut hole is on the same center line, the accuracy control is set to ⁇ 0.01mm, the verticality of the table surface with respect to the main shaft is accurately adjusted, and the main shaft yaw tester is used to measure the yaw value of the main shaft of the rig, and measure the PCB board Thickness and inspection of plate warpage, if there is plate thickness exceeding the standard or plate warpage, add the plate thickness or the increased thickness of plate warpage based on the depth of the built-in nut step hole before drilling;
  • the invention starts with the PCB board processing flow and equipment process capability, and carries out deeper technological development on the process capability of drilling equipment. It designs a dedicated built-in nut step hole PCB board processing flow to achieve rapid production and solve the nut milling steps produced by CNC milling machines. The technical problem of the hole PCB board is slow and cannot be mass-produced.

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Numerical Control (AREA)
  • Drilling And Boring (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)

Abstract

一种内置式螺母台阶孔PCB板快速加工方法，包括以下步骤：S1，按照规格准备基材完成开料操作，并按照内置式螺母台阶孔PCB板正常加工流程制作到电镀，完成图电锡后转钻孔工序钻内置式螺母台阶孔；S2，内置式螺母台阶孔设计：测量内置式螺母的上径、斜边长度和高度，计算出钻咀底部的角度，根据螺母的上径和钻咀底部的角度选择钻咀，根据螺母的高度设置内置式螺母台阶孔深度；S3，内置式螺母台阶孔加工：选择具有探深钻孔功能的钻机根据S2设计的内置式台阶孔设计参数完成钻孔；S4，完成内置式螺母台阶孔钻孔后转电镀蚀刻工艺继续生产，制备得到成品。所述方法具有提高生产效率，节约生产成本，提高加工精准度等优点。

Description

一种内置式螺母台阶孔PCB板快速加工方法 技术领域
本发明涉及PCB板加工领域，具体为一种内置式螺母台阶孔PCB板快速加工方法。
 背景技术
电源模块、智能光电、数字化系统等设备为了维修工更换方便，越来越采用高度集成化、模块化安装模式。而此类板卡的固紧螺母基本都内置镶嵌在PCB板内，螺母底部与线路板底部齐平，不仅节省了空间，还可以防止金属螺丝与设备外壳接触形成短路或漏电。
内镶螺母PCB需要在压合前对PCB掏槽，然后经过压机热压的方式把螺母固定在PCB中，线路板制作过程中均有一定的偏差，因此工艺难度大品质难以保证，且后期维修极不方便，如螺母损坏需要更换更板板卡。          
 内置式螺母是按螺母的形状及尺寸要求在线路板加工成型工序采用数控铣台阶的方式铣出螺母形状的台阶孔，在板卡组装时将螺母放入铣出的台阶孔内然后安装好螺丝帽固紧。改进后的螺母安装方法即简化了PCB的加工流程，也便于板卡的后期维修。
技术问题
在印制电路板生产企业中成型工序基本为瓶颈工序，数控铣台阶平均每孔的时间约为5分钟。每个工作板按200孔计算，每块生产板需要5分钟/孔×200孔=1000分钟=16.67小时，因此，成型数控铣台阶的工艺严重影响生产效率，并不适合此类产品的批量化、规模化生产。
 技术解决方案
本发明可以通过以下技术方案来实现：
一种内置式螺母台阶孔PCB板快速加工方法，包括以下步骤：
S1，按照规格准备基材完成开料操作，并按照内置式螺母台阶孔PCB板正常加工流程制作到电镀，完成图电锡后转钻孔工序钻内置式螺母台阶孔；
   S2，内置式螺母台阶孔设计：测量内置式螺母的上径、斜边长度和高度，按照计算公式θ 1=ArcSin（B÷E）计算出螺母的顶角度数，公式中θ 1代表螺母的顶角度数，B代表螺母的高度，E代表螺母斜边的长度，再根据计算公式θ=180°-2×θ1计算钻咀底部的角度，公式中θ代表钻咀底部的角度，根据螺母的上径和钻咀底部的角度选择钻咀，根据螺母的高度设置内置式螺母台阶孔深度；
    S3，内置式螺母台阶孔加工：选择具有探深钻孔功能的钻机根据S2设计的内置式台阶孔设计参数完成钻孔；
S4，完成内置式螺母台阶孔钻孔后转电镀蚀刻工艺继续生产，制备得到成品。
本发明采用控深钻沉孔方式加工内置式螺母台阶孔，是靠钻咀尖接触金属开始计算钻孔深度，如果按照PCB板常规加工流程在外层钻孔时就将沉孔加工成型，因钻咀尖无法导电导致深度控制偏差大，后续对PCB板进行沉铜时内置式螺母台阶孔也会上铜导致台阶孔内径变化，影响螺母安装，因此本发明在S1中设计将内置式螺母台阶孔工艺流程设计在图电锡后加工内置式螺母台阶孔，使钻咀尖与铜锡有更良好的导电接触，实现内置式螺母台阶孔的深度和内径精度均可控，避免了螺母安装在上铜的台阶孔接触后与PCB板接触引起短路。
且本发明依据内置式螺母尺寸及钻机精度计算加工方案，完全保证内径尺寸合格，当内置式螺母上径和下径尺寸相等时θ为90°，可无需考虑θ角度，当内置式螺母下径小于上径，按照计算公式计算出θ角度数，再分别根据内置式螺母的上径选择相同直径大小的钻咀，并依据内置式螺母高度设置钻孔深度，按照设置好的参数制备得到的内置式螺母台阶孔能将内置式螺母完全嵌入PCB板内，使其底部与基板齐平，内置式螺母无脱落的风险，满足品质的需求。钻孔时选择具有探深钻孔功能的钻机，钻孔前需要调整机器的探深钻孔功能表的参数、套环的公差值和下垫板的公差值，确保钻孔的精度。本发明利用钻孔机快速自动化钻内置式螺母台阶孔技术代替锣机铣内置式螺母台阶孔的技术，快速提升生产效率10倍以上，满足企业大规模生产的需要，同时为企业节省了时间、人工等加工成本。
进一步地，所述S3中钻孔前采用线性马达控制位移精度设备校正钻咀的钻尖与内置式螺母台阶孔的中心处于同一中心线上，将精度控制设置为±0.01mm，精确调整台面相对于主轴的垂直度，所述主轴指钻机带动钻咀转动的轴，用主轴偏摆测试仪测量钻机主轴的偏摆度，测试时转机转速度设置为160krpm/min，偏摆度值≤20um为合格，若测试不合格则要进行校正后再测试至满足生产要求。通过上述操作保证孔位精度，确保已钻出的螺钉孔与内置的螺母孔的中心处于同一中心线上。
    进一步地，所述S3中钻孔前测量PCB板的厚度和检验板翘，若存在板厚超标或板翘，在钻孔前需要在内置式螺母台阶孔深度的基础上加入板厚或板翘增加的厚度。当板厚超出标准、板翘会导致钻出的内置式螺母台阶孔深度小于内置式螺母高度，导致其不能完全内置，在钻孔前先将板厚或板翘增加的厚度加入钻孔深度中，减少制备得到的PCB板二次加工，提高产品良率。
进一步地，所述S3完成钻孔后检测内置式螺母台阶孔质量，先测量PCB板的余厚，用PCB板的板厚减去余厚即为内置式螺母台阶孔的深度，若所述内置式螺母台阶孔的深度小于内置式螺母的高度，增加内置式螺母台阶孔的深度后补钻。当板厚超出标准、板变形或放置不平整时，钻出的内置式螺母台阶孔的深度小于内置式螺母的高度，导致内置式螺母不能完全内置，则需要增加内置式螺母台阶孔的深度后进行补钻，当内置式螺母台阶孔的直径小于内置式螺母的直径时，可增加台阶孔的钻孔补偿或用笔现有钻咀大一个型号的钻咀二次加工，确保内置式螺母底部与基板齐平，满足客户装配要求。
进一步地，所述增加的深度等于内置式螺母的高度减去已钻内置式螺母台阶孔的深度再加上0.1mm。在厚度差的基础上增加0.1mm可保证内置式螺母完全嵌入内置式螺母台阶孔内，使内置式螺母底部与PCB板齐平。
 有益效果
本发明内置式螺母台阶孔PCB板快速加工方法，具有如下的有益效果：
第一、提高生产效率；本发明开发设计了一种利用钻孔机快速自动化钻内置式螺母台阶孔台阶孔技术代替锣机铣内置式螺母台阶孔的技术，只需要在内置式螺母台阶孔PCB板加工流程中图电锡步骤完成后加入内置式螺母台阶孔钻孔步骤即可，快速提升生产效率10倍以上，可以满足企业大规模生产的需要；
第二、节约生产成本；本发明优化了内置式螺母台阶孔的工艺流程，降低了成型工序的数控铣床瓶颈产能，节省了成型机的加工成本、人工成本及水电成本；由于钻孔加工台阶孔的速度快，在产能方面并未显著增加，有利于批量订单的大规模生产；
第三、提高加工精准度，提高产品良率；本发明增加了依据螺母尺寸计算钻机加工方案的设计，能完全保证内径尺寸合格，使内置式螺母底部与PCB板齐平，确保安装后内置式螺母无脱落的风险，同时避免加工尺寸偏差过大需要二次加工而降低加工效率和产品良率。
 本发明的最佳实施方式
一种内置式螺母台阶孔PCB板快速加工方法，按以下步骤操作：
S1，按照规格准备基材完成开料操作，并按照内置式螺母台阶孔PCB板正常加工流程制作到电镀，完成图电锡后转钻孔工序钻内置式螺母台阶孔；
    S2，内置式螺母台阶孔设计：测量内置式螺母的上径为4mm、斜边长度为3.5mm，高度为2mm，按照计算公式θ 1=ArcSin（B÷E）计算出螺母的顶角度数为45°，再根据计算公式θ=180°-2×θ1计算钻咀底部的角度为90°，设计单元钻内置式螺母台阶孔个数为200个，批量生产30块，根据螺母的上径和钻咀底部的角度选择钻咀，根据内置式螺母的高度设置内置式螺母台阶孔深度；
     S3，内置式螺母台阶孔加工：选择具有探深钻孔功能的钻机根据S2设计的内置式台阶孔设计参数完成钻孔，钻孔前采用线性马达控制位移精度设备校正钻咀的钻尖与内置式螺母台阶孔的中心处于同一中心线上，将精度控制设置为±0.01mm，精确调整台面相对于主轴的垂直度，并用主轴偏摆测试仪测量钻机主轴的偏摆度值，测量PCB板的厚度和检验板翘，若存在板厚超标或板翘，在钻孔前在内置式螺母台阶孔深度的基础上加入板厚或板翘增加的厚度；
  S4，完成内置式螺母台阶孔钻孔后转电镀蚀刻工艺继续生产，制备得到成品。
 本发明的实施方式
一种内置式螺母台阶孔PCB板快速加工方法，按以下步骤操作：
S1，按照规格准备基材完成开料操作，并按照内置式螺母台阶孔PCB板正常加工流程制作到电镀，完成图电锡后转钻孔工序钻内置式螺母台阶孔；
    S2，内置式螺母台阶孔设计：测量内置式螺母的上径为4mm、斜边长度为3.5mm，高度为2mm，按照计算公式θ 1=ArcSin（B÷E）计算出螺母的顶角度数为45°，再根据计算公式θ=180°-2×θ1计算钻咀底部的角度为90°，设计单元钻内置式螺母台阶孔个数为200个，批量生产30块，根据螺母的上径和钻咀底部的角度选择钻咀，根据内置式螺母的高度设置内置式螺母台阶孔深度；
     S3，内置式螺母台阶孔加工：选择具有探深钻孔功能的钻机根据S2设计的内置式台阶孔设计参数完成钻孔，钻孔前采用线性马达控制位移精度设备校正钻咀的钻尖与内置式螺母台阶孔的中心处于同一中心线上，将精度控制设置为±0.01mm，精确调整台面相对于主轴的垂直度，并用主轴偏摆测试仪测量钻机主轴的偏摆度值，测量PCB板的厚度和检验板翘，若存在板厚超标或板翘，在钻孔前在内置式螺母台阶孔深度的基础上加入板厚或板翘增加的厚度；
  S4，完成内置式螺母台阶孔钻孔后转电镀蚀刻工艺继续生产，制备得到成品。
实施例2
一种内置式螺母台阶孔PCB板快速加工方法，按以下步骤操作：
S1，按照规格准备基材完成开料操作，并按照内置式螺母台阶孔PCB板正常加工流程制作到电镀，完成图电锡后转钻孔工序钻内置式螺母台阶孔；
    S2，内置式螺母台阶孔设计：测量内置式螺母的上径为6mm、斜边长度为10mm，高度为3mm，按照计算公式θ 1=ArcSin（B÷E）计算出螺母的顶角度数为15°，再根据计算公式θ=180°-2×θ1计算钻咀底部的角度为150°，设计单元钻内置式螺母台阶孔个数为127个，批量生产90块板，根据螺母的上径和钻咀底部的角度选择钻咀，根据内置式螺母的高度设置内置式螺母台阶孔深度；
     S3，内置式螺母台阶孔加工：选择具有探深钻孔功能的钻机根据S2设计的内置式台阶孔设计参数完成钻孔，钻孔前采用线性马达控制位移精度设备校正钻咀的钻尖与内置式螺母台阶孔的中心处于同一中心线上，将精度控制设置为±0.01mm，精确调整台面相对于主轴的垂直度，并用主轴偏摆测试仪测量钻机主轴的偏摆度值，测量PCB板的厚度和检验板翘，若存在板厚超标或板翘，在钻孔前在内置式螺母台阶孔深度的基础上加入板厚或板翘增加的厚度；
  S4，完成内置式螺母台阶孔钻孔后转电镀蚀刻工艺继续生产，制备得到成品。
实施例3
一种内置式螺母台阶孔PCB板快速加工方法，按以下步骤操作：
S1，按照规格准备基材完成开料操作，并按照内置式螺母台阶孔PCB板正常加工流程制作到电镀，完成图电锡后转钻孔工序钻内置式螺母台阶孔；
    S2，内置式螺母台阶孔设计：测量内置式螺母的上径为4mm、斜边长度为2.3mm，高度为2mm，按照计算公式θ 1=ArcSin（B÷E）计算出螺母的顶角度数为30°，再根据计算公式θ=180°-2×θ1计算钻咀底部的角度为120°，设计单元钻内置式螺母台阶孔个数为83个，批量生产70块板，根据螺母的上径和钻咀底部的角度选择钻咀，根据内置式螺母的高度设置内置式螺母台阶孔深度；
     S3，内置式螺母台阶孔加工：选择具有探深钻孔功能的钻机根据S2设计的内置式台阶孔设计参数完成钻孔，钻孔前采用线性马达控制位移精度设备校正钻咀的钻尖与内置式螺母台阶孔的中心处于同一中心线上，将精度控制设置为±0.01mm，精确调整台面相对于主轴的垂直度，并用主轴偏摆测试仪测量钻机主轴的偏摆度值，测量PCB板的厚度和检验板翘，若存在板厚超标或板翘，在钻孔前在内置式螺母台阶孔深度的基础上加入板厚或板翘增加的厚度；
  S4，完成内置式螺母台阶孔钻孔后转电镀蚀刻工艺继续生产，制备得到成品。
上述三个实施例产品测试结果如下表所示：
Figure 472119dest_path_image002
由上述测试结果可知，本发明制备得到的内置式螺母台阶孔的规格精度高，偏差小，产品检验合格率高。
以上所述，仅为本发明的较佳实施例而已，并非对本发明作任何形式上的限制；凡本行业的普通技术人员均可按说明书所述而顺畅地实施本发明；但是，凡熟悉本专业的技术人员在不脱离本发明技术方案范围内，可利用以上所揭示的技术内容而作出的些许更动、修饰与演变的等同变化，均为本发明的等效实施例；同时，凡依据本发明的实质技术对以上实施例所作的任何等同变化的更动、修饰与演变等，均仍属于本发明的技术方案的保护范围之内。
 工业实用性
本发明从PCB板加工流程与设备工艺能力入手，对钻孔设备的工艺能力进行更深层次的技术开发，设计专用的内置式螺母台阶孔PCB板加工流程，实现快速生产，解决数控铣床生产螺母台阶孔PCB板效率慢无法批量生产的技术难题。

Claims (5)

  1. 一种内置式螺母台阶孔PCB板快速加工方法，其特征在于：包括以下步骤：
    S1，按照规格准备基材完成开料操作，并按照内置式螺母台阶孔PCB板正常加工流程制作到电镀，完成图电锡后转钻孔工序钻内置式螺母台阶孔；
        S2，内置式螺母台阶孔设计：测量内置式螺母的上径、斜边长度和高度，按照计算公式θ 1=ArcSin（B÷E）计算出螺母的顶角度数，公式中θ 1代表螺母的顶角度数，B代表螺母的高度，E代表螺母斜边的长度，再根据计算公式θ=180°-2×θ1计算钻咀底部的角度，公式中θ代表钻咀底部的角度，根据螺母的上径和钻咀底部的角度选择钻咀，根据螺母的高度设置内置式螺母台阶孔深度；
         S3，内置式螺母台阶孔加工：选择具有探深钻孔功能的钻机根据S2设计的内置式台阶孔设计参数完成钻孔；
         S4，完成内置式螺母台阶孔钻孔后转电镀蚀刻工艺继续生产，制备得到成品。
  2. 根据权利要求1所述的内置式螺母台阶孔PCB板快速加工方法，其特征在于：所述S3中钻孔前采用线性马达控制位移精度设备校正钻咀的钻尖与内置式螺母台阶孔的中心处于同一中心线上，将精度控制设置为±0.01mm，精确调整台面相对于主轴的垂直度，并用主轴偏摆测试仪测量钻机主轴的偏摆度。
  3. 根据权利要求2所述的内置式螺母台阶孔PCB板快速加工方法，其特征在于：所述S3中钻孔前测量PCB板的厚度和检验板翘，若存在板厚超标或板翘，在钻孔前需要在内置式螺母台阶孔深度的基础上加入板厚或板翘增加的厚度。
  4. 根据权利要求3所述的内置式螺母台阶孔PCB板快速加工方法，其特征在于：所述S3完成钻孔后检测内置式螺母台阶孔质量，先测量PCB板的余厚，用PCB板的板厚减去余厚即为内置式螺母台阶孔的深度，若所述内置式螺母台阶孔的深度小于内置式螺母的高度，增加内置式螺母台阶孔的深度后补钻。
  5. 根据权利权利要求3所述的内置式螺母台阶孔PCB板快速加工方法，其特征在于：所述增加的深度等于内置式螺母的高度减去已钻内置式螺母台阶孔的深度再加上0.1mm。
PCT/CN2018/119849 2018-07-03 2018-12-07 一种内置式螺母台阶孔pcb板快速加工方法 WO2020006983A1 (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201810720082.5A CN108617099B (zh) 2018-07-03 2018-07-03 一种内置式螺母台阶孔pcb板快速加工方法
CN201810720082.5 2018-07-03

Publications (1)

Publication Number Publication Date
WO2020006983A1 true WO2020006983A1 (zh) 2020-01-09

Family

ID=63666117

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2018/119849 WO2020006983A1 (zh) 2018-07-03 2018-12-07 一种内置式螺母台阶孔pcb板快速加工方法

Country Status (2)

Country Link
CN (1) CN108617099B (zh)
WO (1) WO2020006983A1 (zh)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108617099B (zh) * 2018-07-03 2019-12-20 惠州市金百泽电路科技有限公司 一种内置式螺母台阶孔pcb板快速加工方法

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103557793A (zh) * 2013-11-14 2014-02-05 成都金大立科技有限公司 一种pcb孔位、孔径检测系统及检测方法
US20160066432A1 (en) * 2014-08-28 2016-03-03 Wojciech B. Kosmowski Y axis beam positioning system for a pcb drilling machine
CN107396540A (zh) * 2017-08-24 2017-11-24 奥士康科技股份有限公司 一种pcb锥形孔制作方法
CN107708307A (zh) * 2017-08-30 2018-02-16 奥士康精密电路（惠州）有限公司 基于自动识别参数的锣板方法
CN108617099A (zh) * 2018-07-03 2018-10-02 惠州市金百泽电路科技有限公司 一种内置式螺母台阶孔pcb板快速加工方法

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5027417A (en) * 1989-03-31 1991-06-25 Dainippon Screen Mfg. Co., Ltd. Method of and apparatus for inspecting conductive pattern on printed board
US6200073B1 (en) * 1999-10-18 2001-03-13 Henry Chung Combination chamfering and milling tool
CN103128345B (zh) * 2011-11-28 2017-03-01 三菱综合材料株式会社 Pcd钻头
CN103331656B (zh) * 2012-10-21 2016-01-13 泰州市利优精密机械有限公司 一种钻头研磨机
CN107052408A (zh) * 2017-01-10 2017-08-18 深圳市金洲精工科技股份有限公司 钻孔工具

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103557793A (zh) * 2013-11-14 2014-02-05 成都金大立科技有限公司 一种pcb孔位、孔径检测系统及检测方法
US20160066432A1 (en) * 2014-08-28 2016-03-03 Wojciech B. Kosmowski Y axis beam positioning system for a pcb drilling machine
CN107396540A (zh) * 2017-08-24 2017-11-24 奥士康科技股份有限公司 一种pcb锥形孔制作方法
CN107708307A (zh) * 2017-08-30 2018-02-16 奥士康精密电路（惠州）有限公司 基于自动识别参数的锣板方法
CN108617099A (zh) * 2018-07-03 2018-10-02 惠州市金百泽电路科技有限公司 一种内置式螺母台阶孔pcb板快速加工方法

Also Published As

Publication number Publication date
CN108617099B (zh) 2019-12-20
CN108617099A (zh) 2018-10-02

Similar Documents

Publication Publication Date Title
CN101954500B (zh) 线路板沉孔加工装置及方法
CN107708305A (zh) 用于精密控制基板外型的锣板工艺
CN107708307A (zh) 基于自动识别参数的锣板方法
CN203696553U (zh) 芯板钻孔定位装置
CN206998457U (zh) 一种提高盲孔深度精度的pcb机械钻孔机
CN109089381B (zh) 一种微小尺寸pcb板的外形加工方法
CN106061139A (zh) 一种hdi板内层层间对准度控制方法
WO2020006983A1 (zh) 一种内置式螺母台阶孔pcb板快速加工方法
CN201253780Y (zh) 一种线路板钻孔深度测试片
CN111818731A (zh) 一种pcb板控深盲孔的制作工艺
CN106769169A (zh) 一种印制电路板失效区域样品的制备方法
CN102528111B (zh) 机械控深钻盲孔的工艺方法
CN112867266B (zh) 一种pcb板成槽工艺方法
CN105430924B (zh) 镶嵌散热片的高频高速线路板的制作方法
CN112822841B (zh) 一种储存器类载板制作方法
CN108064118B (zh) 一种防错位的pcb板钻孔方法
CN105611743A (zh) 一种精细线路的制作方法
CN112291932A (zh) 一种pcb钻孔加工用电木板利用率提升的方法
CN102510666B (zh) 高密度互连印刷电路板上盲捞沉孔的加工工艺
CN101562942A (zh) 基于模具加工pcb提高板材利用率的拼版方法
CN205786943U (zh) 一种高密度led盲埋孔电路板通断路测试治具
CN102423860B (zh) 内循环滚珠螺母返向器孔的定位加工方法
CN212794830U (zh) 一种通孔钻削加工钻头折断后钻头取出用辅助装置
CN104661433A (zh) Pcb板台阶槽加工工艺
CN203523154U (zh) 用于电路板成型机的自动下板脱料装置

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 18925309

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

32PN Ep: public notification in the ep bulletin as address of the adressee cannot be established

Free format text: NOTING OF LOSS OF RIGHTS PURSUANT TO RULE 112(1) EPC (EPO FORM 1205 DATED 28/05/2021)

122 Ep: pct application non-entry in european phase

Ref document number: 18925309

Country of ref document: EP

Kind code of ref document: A1