PCB (Printed Circuit Board) drill bit and drilling machine with same

A drill and head technology, which is applied in the field of PCB drilling drills and drills using the drill, can solve the problems of low hole position accuracy of double-edged drills, easy-to-break drills, and difficult processing, so as to increase unit output value and reduce processing. Cost, the effect of increasing the number of laminated boards

Inactive Publication Date: 2012-07-11
XIAMEN CHUANGXIN YIDA PRECISION TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Existing PCB substrates are usually drilled with a double-edged drill bit. The drill bit has two grooves from the tip to the root, and only two points on the tip section are in contact with the hole wall of the substrate. The hole position is not good, and the number of stacked plates should not be too high under low-speed (120,000 rpm) equipment, otherwise the drill bit will be easily broken, so the hole position accuracy of the double-edged drill bit is low, the processing is difficult and the cost is high.

Method used

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  • PCB (Printed Circuit Board) drill bit and drilling machine with same
  • PCB (Printed Circuit Board) drill bit and drilling machine with same
  • PCB (Printed Circuit Board) drill bit and drilling machine with same

Examples

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Embodiment Construction

[0012] The specific implementation manners of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0013] see figure 1 , figure 1 It is a structural schematic diagram of a preferred embodiment of the PCB drilling bit of the present invention. The PCB drilling bit includes a drilling part 1 and an end handle part 2 connected thereto. The outer diameter of the bore part 1 is smaller than the outer diameter of the end shank part 2 .

[0014] see figure 2 , figure 2 yes figure 1 Schematic diagram of the structure of the middle drilling part 1. The drilling part 1 of the PCB drilling bit includes a drilling head 12, a drilling neck 14 and a drilling root 16, and the drilling neck 14 and the drilling root 16 are provided with a helically extending chip removal main Grooves (not marked in the figure) are used for chip removal after punching the PCB substrate.

[0015] see image 3 , image 3 yes figure 2 Sectional view...

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PUM

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Abstract

The invention provides a PCB (Printed Circuit Board) drill bit and a drilling machine with the same. The PCB drill bit comprises a drilling part and an end shank part connected with the drilling part; the drilling part comprises a drilling head, a drilling neck and a drilling root; the end surface of the drilling head is provided with a main cutting trench; two ends of the main cutting trench extend to form auxiliary cutting trenches through intersecting; fulcrums where the main cutting trench and the auxiliary cutting trenches are intersected are distributed on a circumference at equal distance; and the drilling neck and the drilling root are provided with a spirally extending main scrap removal trench for removing scraps after a PCB substrate is drilled. The PCB drill bit and the drilling machine with the same provided by the invention are higher in hole location precision as well as lower in machining difficulty and cost.

Description

【Technical field】 [0001] The invention relates to the technical field of PCB manufacturing, in particular to a PCB drilling drill bit and a drilling machine using the drill bit. 【Background technique】 [0002] Existing PCB substrates are usually drilled with a double-edged drill bit. The drill bit has two grooves from the tip to the root, and only two points on the tip section are in contact with the hole wall of the substrate. The hole position is not good, and the number of stacked plates should not be too high under low-speed (120,000 rpm) equipment, otherwise the drill bit will be easily broken, so the hole position accuracy of the double-edged drill bit is low, the processing is difficult and the cost is high. . 【Content of invention】 [0003] In view of this, it is necessary to provide a PCB drilling drill with high hole position accuracy, less processing difficulty and low cost and a drill using the same. [0004] A PCB drilling bit and a drilling machine using th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23B51/02B23B41/00
Inventor 兰保养
Owner XIAMEN CHUANGXIN YIDA PRECISION TECH
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