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A kind of tree core groove processing method and printed circuit board

A printed circuit board and groove processing technology, which is applied in the direction of printed circuit, printed circuit manufacturing, electrical components, etc., can solve the problems affecting the installation of components, so as to improve the quality and prevent the front edge

Active Publication Date: 2021-08-13
MEIZHOU ZHIHAO ELECTRONICS TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there is no other tool that can repair the processed special-shaped slots to remove burrs and fibers. Therefore, after copper plating, burrs and fibers will form metallized ridges, which will affect the installation of components.

Method used

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  • A kind of tree core groove processing method and printed circuit board
  • A kind of tree core groove processing method and printed circuit board
  • A kind of tree core groove processing method and printed circuit board

Examples

Experimental program
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Effect test

Embodiment 1

[0032] Please refer to the attached image 3 It is a schematic flowchart of a method for processing a tree core groove provided by Embodiment 1 of the present invention, and the method is applicable to the scene of processing a tree core groove. The method specifically includes the following steps:

[0033] S101, make two symmetrical small round holes on the area to be processed on the printed circuit board through the drill bit, such as Figure 4 shown;

[0034] It should be noted that there are two types of core grooves: horizontal and vertical. In this embodiment, the horizontal core groove is taken as an example, and the same is true for vertical.

[0035] Preferably, before the step S101, the method further includes:

[0036] According to the size of the small round hole to be drilled, select a drill bit that matches the size.

[0037] S102. Make a large circular hole between the two small circular holes through the first groove cutter, and the large circular hole int...

Embodiment 2

[0050] Embodiment 2 of the present invention provides a printed circuit board, which has a core groove, and the core groove is manufactured by the core groove processing method as described in Embodiment 1.

[0051] A printed circuit board provided by an embodiment of the present invention can completely remove burrs and fibers by adding drilling holes for removing burrs, dust, and fibers in the processing process, and prevent the burr after copper electroplating, so as to achieve It meets the requirements of component installation and improves the quality of slot hole processing.

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Abstract

The invention discloses a method for processing a tree core groove and a printed circuit board. The method comprises: making two symmetrical small round holes on the area to be processed on the printed circuit board through a drill; Make big round hole between two described small round holes, described big round hole intersects with two described small round holes respectively; By the second groove cutter identical with the size of described drill bit respectively to two described small round holes Carry out back drilling to make dust removal holes to remove drilling dust; use a gong cutter to make deburring holes at each intersection position of the small round hole and the large round hole to remove the drilling burrs. The method for processing a tree core groove and the printed circuit board provided by the present invention can completely remove burrs and fibers by adding drilling holes for removing burrs, dust, and fibers in the processing technology, and prevent the burrs and fibers after copper plating. Drape the front to meet the requirements of component installation and improve the quality of slot hole processing.

Description

technical field [0001] The invention relates to the technical field of processing special-shaped slots, in particular to a method for processing tree core slots and a printed circuit board. Background technique [0002] In the process of making printed circuit boards, in order to meet the installation requirements of different components, customers will need to design various special-shaped slots, such as tree core slots, please refer to figure 1 , The tree core groove is composed of a large round hole plus small round holes intersecting on both sides, in the shape of a tree core. [0003] Since the spindle of the drilling rig rotates clockwise when processing such special-shaped slot holes, the intersection position of the front hole and the rear hole will bring burrs and fiber filaments into the hole with the rotation of the drilling rig spindle, which cannot be cut off, forming burrs, fiber filaments, etc. ( Such as figure 2 shown). At present, there is no other tool ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H05K3/00
CPCH05K3/0044H05K3/0047
Inventor 张学平刘喜科戴晖
Owner MEIZHOU ZHIHAO ELECTRONICS TECH
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