Method for removing burr from combined hole and forming method and equipment for combined hole

A technology of combining holes and burrs, used in drilling/drilling equipment, metal processing equipment, components of boring machines/drilling machines, etc., can solve problems such as low efficiency, unsuitable for low-cost and mass production, and large labor costs. , to achieve the effect of simple production, high pass rate, and labor cost saving

Inactive Publication Date: 2011-06-29
PEKING UNIV FOUNDER GRP CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, this method is not only inefficient, but also increases a lot

Method used

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  • Method for removing burr from combined hole and forming method and equipment for combined hole
  • Method for removing burr from combined hole and forming method and equipment for combined hole
  • Method for removing burr from combined hole and forming method and equipment for combined hole

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Embodiment Construction

[0030] The invention provides a method for removing burrs from combined holes. The combined holes include at least two intersecting single holes, and the single holes are round holes or non-round holes or the single holes include round holes and non-round holes. The intersection of adjacent two single holes defines a common chord, wherein the method comprises the steps of:

[0031] Step 10): Drilling the intersection point with a drill bit to remove burrs at the intersection point.

[0032] Preferably, in each embodiment of the present invention, the step 10) includes:

[0033] Step 11): Drilling with the midpoint of the common chord as the positioning center of the drill bit, wherein the diameter of the drill bit is greater than the length of the common chord;

[0034] or

[0035] Step 12): Move the drills to the intersection points to remove the burrs respectively, wherein the diameter of the drills is less than or equal to the length of the common chord.

[0036] Prefera...

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Abstract

The invention provides a method for removing burrs from a combined hole, which comprises the following steps: a crossing point is drilled with a drilling bit to remove burrs at the crossing point. The invention has the advantages that: the method for removing burrs from the combined hole is rapid and highly efficient, saves the manpower cost and increases the qualification rate. Besides, the invention also provides a forming method for the combined hole and forming equipment for the combined hole.

Description

technical field [0001] The invention relates to the technical field of combined hole processing, in particular to a method for removing burrs from combined holes and a method for forming combined holes. Background technique [0002] With the rapid development of PCB (Printed Circuit Board, printed circuit board) technology, PCB products show a trend of thin, dense, and high-level development. Any subtle process detail may affect the final quality of the product, which is Relevant enterprises are required to continuously improve the processing technology and precision of PCB. [0003] In the PCB process, it is often necessary to process some special hole shapes and apertures. These special hole shapes are mainly combined holes formed by the intersection of round holes. The gourd hole is a relatively common hole in the above-mentioned combined holes. Shape, the processing process specifically includes several main processes such as drilling, deburring and electroplating. Thi...

Claims

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Application Information

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IPC IPC(8): B23B35/00B23P17/00B23B47/00
Inventor 柳小华
Owner PEKING UNIV FOUNDER GRP CO LTD
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