Processing Method of Short Slot Hole in Printed Circuit Board

A technology of printed circuit boards and processing methods, applied in the directions of printed circuits, printed circuit manufacturing, electrical components, etc., can solve the problems of size deviation, deformation of overlapping slots and slots, and protruding edges, and achieve uniform distance and small cutting amount. Effect

Active Publication Date: 2019-06-21
MEIZHOU ZHIHAO ELECTRONICS TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem mainly solved by the present invention is the quality phenomena such as slot hole deformation, size deviation and front burr that are easy to occur in the processing process of the existing overlapping slots.

Method used

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  • Processing Method of Short Slot Hole in Printed Circuit Board
  • Processing Method of Short Slot Hole in Printed Circuit Board
  • Processing Method of Short Slot Hole in Printed Circuit Board

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Embodiment Construction

[0018] In order to make the technical problems, technical solutions and beneficial effects solved by the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0019] see figure 1 ,

[0020] It is a processing schematic diagram of an embodiment of the short slot hole processing method of a printed circuit board provided by the present invention. The ratio of the slot length to the slot width of the short slot 1 is less than 2.

[0021] In this embodiment, a gong knife (not shown) is used to process the short slot 1, and the gong knife starts cutting from one end of the short slot 1, and it adopts the method of nibble processing, and cuts step by step until The other end of the short slot 1. The cutting volume of the gong kn...

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Abstract

The invention provides a processing method for a short slot hole of a printed circuit board. The processing method comprises the following steps of choosing a milling knife according to size parameters of a to-be-processed short slot hole; cutting and processing the short slot hole by using the milling knife, wherein the cutting amount of the milling knife in each time is equivalent; and performing a de-burring operation on the two ends of the short slot hole. The processing method for the short slot hole has the advantages of low cutting amount, uniform distance and the like; and the processed slot hole is relatively good in hole pattern and burrs do not exist in the hole slot.

Description

technical field [0001] The invention relates to the technical field of printed circuit board processing, in particular to a method for processing a short slot hole of a printed circuit board. Background technique [0002] With the development of modern electronic products toward miniaturization, high integration, and high performance, the diameter and precision of drilling holes are getting higher and higher, and the number of ultra-short slots and long slots is also increasing a lot. The processing quality requirements are getting higher and higher, and its quality directly affects the installation and use of customer products. [0003] At present, many printed circuit board manufacturers are prone to problems such as slot deformation, large slots, and small slots in the actual production process. A short slot refers to a slot whose slot length is not greater than twice the slot width. Due to the short machining distance of the short slot hole, the fast rotation speed of ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H05K3/00
CPCH05K3/0044H05K2203/0228
Inventor 张学平刘喜科戴晖
Owner MEIZHOU ZHIHAO ELECTRONICS TECH
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