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A divisional drilling method for a large-size backplane

A drilling method and large-scale technology, applied in metal processing and other directions, can solve problems such as deviation in different directions, differences in drilling belts, etc., to achieve the effect of saving materials and improving production efficiency

Inactive Publication Date: 2016-05-04
SHENZHEN SUNTAK MULTILAYER PCB
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In order to solve the problem that after the large backplane is drilled in different areas, the drilled holes are shifted in different directions due to the difference in the drill belt. The present invention provides a method for drilling large-size backplanes in different areas. The specific scheme is as follows:

Method used

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  • A divisional drilling method for a large-size backplane
  • A divisional drilling method for a large-size backplane
  • A divisional drilling method for a large-size backplane

Examples

Experimental program
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Effect test

Embodiment 1

[0028] Such as Figure 1-2 As shown in the large-size backplane, the rectangular area above the C-C line is the first area 11, and the rectangular area below the A-A line is the second area 13; the overlapping rectangular part of the first area 11 and the second area 13 is the overlapping area 12 (A-A and part between C-C). Make a first positioning target 111, a second positioning target 121, and a third positioning target 122 in the first area 11, wherein the second positioning target 121 and the third positioning target 122 are respectively located at both ends of the rectangular overlapping area 12, and the first positioning target The target 111 is located outside the rectangular overlapping area 12 ; the fourth positioning target 131 is made in the second area 13 , and the fourth positioning target 131 is located outside the rectangular overlapping area 12 .

[0029] The outer sides of the second positioning target 121 and the third positioning target 122 in the overlapp...

Embodiment 2

[0032] The difference between this embodiment and Embodiment 1 lies in that the first test holes 124 in the test area 123 and the second test holes 125 in the second area are distributed in different intervals, such as image 3 As shown, the first test hole 124 and the second test hole 125 of this embodiment are distributed side by side in the lateral direction, and are distributed in a single interval in the longitudinal direction. Other steps are the same as in the first embodiment. It should be noted that, the spacing distribution of the first test holes 124 and the second test holes 125 may also have other distribution methods, not limited to the above two enumerated forms.

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Abstract

The invention discloses a regional drilling method for a large-size back plate. The regional drilling method is applied to drilling of multi-layer large-size circuit boards. The regional drilling method for the large-size back plate includes: making of positioning targets, making of test holes, detecting of the test holes and making of line drill holes. The large-size back plate is divided into a plurality of regions, adjacent regions share the same target for positioning to make sure that adjacent regions form a whole, and accordingly all regions of the large-size back plate form a whole, and the problem of hole deflection caused by independent target positioning is avoided; due to the fact that the test holes are formed at intervals in test areas of overlap regions, quality of holes drilled in each two adjacent regions can be detected effectively, and drilling quality of the whole plate can be reflected effectively; compared with the prior art, the regional drilling method has the advantages that owing to making of the positioning targets, efficiency of procedures before drilling can be improved, and materials are saved.

Description

technical field [0001] The invention is applied to the drilling of large-size multilayer circuit boards, and in particular relates to a method for drilling large-size backplanes in different regions. Background technique [0002] The size of the ordinary drilling rig is 560*690mm, and the large-size backplane has exceeded the size of the drill table that can be drilled at one time, so it is necessary to use regional drilling. That is, the large-size backplane is divided into two or more areas for drilling; [0003] Drilling in different areas in the prior art, as shown on the right Figure 4 As shown in the large-size backplane, B-B divides the large-size backplane into the first area 2 and the second area 20 for drilling, use the first group of drilling holes to locate the targets 21, 22, 23, and drill the holes in the first area 2 , use the second group of drilling positioning targets 24, 25, 26 to drill the holes in the second area 20; the test hole 28 in the first test ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B26F1/16
CPCB26F1/16
Inventor 王佐彭卫红周文涛翟青霞朱拓
Owner SHENZHEN SUNTAK MULTILAYER PCB