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Drilling marking-off method of equal-spaced holes

A drilling scribing and equidistant technology, applied in the field of mechanical processing, can solve the problems of increasing processing cost, low scribing accuracy, and large number of holes.

Active Publication Date: 2013-09-11
SHENYANG AIRCRAFT CORP
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  • Summary
  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The centerlines of these holes are arranged on a plane, and the center distances of the holes are equal. When drilling these holes, they are usually marked according to the design size or processed according to the template. In order to meet the requirements of the assembly accuracy of the parts, the holes on some parts The scribing process can only be done during assembly, but the number of holes is large and the scribing is difficult, which results in low scribing accuracy and waste of assembly time, which in turn affects assembly quality and efficiency
If the holes are drilled according to the template, each template can only drill holes with one hole pitch. When there are multiple hole pitches, multiple templates are required, which greatly increases the processing cost.

Method used

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  • Drilling marking-off method of equal-spaced holes
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  • Drilling marking-off method of equal-spaced holes

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Experimental program
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Embodiment Construction

[0018] A method for drilling and marking equidistant holes, comprising the following steps:

[0019] 1) Take a rubber band with a rectangular cross-section and a length of 500mm, stretch it to 3 times the original length, and fix the two ends of the rubber band on the wooden board with a screw clamp;

[0020] 2) if figure 1 As shown, use a ruler and an ink pen to draw 25 equidistant parallel straight lines with a line width of 0.5mm and a spacing of 50mm on the stretched rubber band, and then remove the rubber band from the wooden board;

[0021] 3) Use an ink pen to draw the center point of the hole at both ends of the equidistant hole on the surface of the part according to the size, and the diameter of the center point drawn is a circle point with a diameter of Ф1mm;

[0022] 4) if figure 2 As shown, with the center of the two dots as the endpoint, use a ruler and a pencil to draw a straight line segment with a line width of 0.5mm on the plane of the part;

[0023] 5) A...

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Abstract

The invention relates to a drilling marking-off method of equal-spaced holes. According to the drilling marking-off method of the equal-spaced holes, the uniform tensile property of stretching of a rubber band is utilized, a fixed number of ink lines within the distance between two fixed points are formed, and then the fixed distance can be divided in an equalized mode. According to the drilling marking-off method, hole location marking-off accuracy and efficiency of the equal-spaced holes are improved, and machining cost of parts is lowered.

Description

technical field [0001] The invention relates to a method for drilling and marking equidistant holes, which belongs to the field of mechanical processing. Background technique [0002] During the assembly process of aircraft, the commonly used connection methods include threaded fastener connection, riveting, welding and gluing. When assembling parts with threaded fasteners and riveting, it is necessary to drill connection holes on the parts for the installation of the connectors. Aircraft parts have the characteristics of large size and complex surface structure, which lead to a large number and complex arrangement of these connecting holes. Some large-size parts have connection holes drilled on the plane. The centerlines of these holes are arranged on a plane, and the center distances of the holes are equal. When drilling these holes, they are usually marked according to the design size or processed according to the template. In order to meet the requirements of the assem...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B25H7/04
Inventor 张海欧杨晓飞
Owner SHENYANG AIRCRAFT CORP
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