Manufacturing method of short slot hole of circuit board

A manufacturing method and a technology of short slot holes, which are applied in the manufacture of printed circuits, printed circuits, electrical components, etc., to achieve the effects of reducing defective rates, reducing production costs, and avoiding deformation

Active Publication Date: 2014-12-31
南通胜宏科技有限公司
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0005] In view of this, the technical problem to be solved in the present invention is a method for making short slot holes in circuit boards that reduces the rate of defective products and improves the quality.

Method used

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  • Manufacturing method of short slot hole of circuit board

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Embodiment Construction

[0017] In order to allow those skilled in the art to better understand the technical solutions of the present invention, the present invention will be further described below in conjunction with the accompanying drawings.

[0018] A method for manufacturing a circuit board short slot, comprising the following steps:

[0019] (1) Print the short slot pattern to be made on the circuit board, the upper and lower sides of the short slot pattern in the slot length direction are parallel to each other, and the two ends are arc-shaped.

[0020] (2) Choose a guide hole drill with a diameter smaller than the width of the slot hole, and drill a circular guide hole at both ends of the short slot pattern. The center of the circular guide hole is located at the center line of the short slot pattern. The circular guide holes are respectively inscribed with the ends of the short slots; in order to improve the guiding accuracy of the circular guide holes, the diameter of the circular guide ho...

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Abstract

The invention relates to a manufacturing method of a short slot hole of a circuit board. The manufacturing method comprises the following steps of firstly, printing a to-be-manufactured short slot hole pattern on the circuit board; then, drilling circular guide holes respectively in the two ends of the to-be-manufactured short slot hole pattern, wherein the circle center of each circuit guide hole is positioned in the centerline of the short slot hole pattern, and is internally tangential with the tail end of the short slot hole pattern; finally, selecting a second drill bit which has the same diameter with the short slot hole to drill holes. The manufacturing method has the advantages that by adjusting the drilling point of the drill bit, the deflection angle caused by the rotation of the drill bit is compensated, the deflection force and lateral movement of overlapping part during drilling are reduced, the accuracy of the short slot hole is improved, the problem of skewing of the short slot hole is effectively solved, the defect rate of the short slot hole is reduced, the quality problem caused by deformation of the short slot hole during processing is solved, the discard rate of the circuit board is reduced, the production cost of enterprises is reduced, the production efficiency is improved, and the competitiveness of enterprise is improved.

Description

technical field [0001] The invention belongs to the field of circuit board processing and manufacturing, and specifically provides a method for manufacturing short slot holes in a circuit board. Background technique [0002] With the rapid development of electronic technology and integrated circuits, people are constantly pursuing the miniaturization and intelligence of electronic products, and the requirements for various parameters in the production of circuit boards are also getting higher and higher. There are various types and specifications of component holes, and the quality and precision of component holes directly affect the installation of components, among which short slot holes are one of component holes. The existing short slot length is divided into slot length and slot width, and the relationship between the two is that the slot length is less than twice the slot width. As the current circuit boards are becoming more and more refined, the short slots drilled ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H05K3/00
Inventor 陈德章李加余
Owner 南通胜宏科技有限公司
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