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Method for analyzing borehole deviation of PCB drilling machine

An analysis method and drilling machine technology, applied in the direction of measuring devices, instruments, optical devices, etc., can solve problems such as unfavorable machine production debugging, testing, complex structure, and time-consuming, etc., achieving significant technological progress and simple analysis process , Improve the effect of analysis accuracy

Active Publication Date: 2010-06-09
SUZHOU VEGA TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At the same time, due to the complex structure of the PCB drilling machine, the analysis of drilling deviation takes a lot of time, which is not conducive to the time requirements for mass production, debugging and testing.

Method used

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  • Method for analyzing borehole deviation of PCB drilling machine
  • Method for analyzing borehole deviation of PCB drilling machine
  • Method for analyzing borehole deviation of PCB drilling machine

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] The method for analyzing the deviation of a PCB drilling machine includes the following steps: firstly, the hole position of the drilled hole is measured by a two-dimensional measuring instrument to obtain corresponding hole position data. Specifically, the hole position data includes Cpk (process capability index), Ca (process accuracy, indicating the deviation degree of the center position of the process characteristics), 3Sigma (ie 3σ, σ is the standard deviation, and 3σ is 3 times the standard deviation ) constitutes the engineering coefficient, the deviation data of the hole composed of the deviation value in the X direction and the deviation value in the Y direction of the drilling hole in the actual coordinates, and the deviation value of the tool diameter. Subsequently, the hole position data is imported into the analysis software in text file format.

[0030] further combined figure 1 From the point of view, the comparison parameter used is Ex / x, that is, the ...

Embodiment 2

[0033]The method for analyzing the deviation of a PCB drilling machine includes the following steps: firstly, the hole position of the drilled hole is measured by a two-dimensional measuring instrument to obtain corresponding hole position data. Subsequently, the hole position data is imported into the analysis software in text file format.

[0034] combine figure 2 According to the hole position data, the comparison parameter used is Ey / y, that is, the deviation data of the coordinates of the actual drilling in the Y direction. The deviation of is the vertical axis, forming a scatter plot. And, combine the average value of multiple drilling deviations under the same Y coordinate value to generate a trend line. In other words, this trend line reflects whether the machine applies laser interferometer compensation in the Y-axis direction to improve drilling accuracy under the condition of small temperature difference (temperature change ±1°C).

[0035] Specifically, if the t...

Embodiment 3

[0037] The method for analyzing the deviation of a PCB drilling machine includes the following steps: firstly, the hole position of the drilled hole is measured by a two-dimensional measuring instrument to obtain corresponding hole position data. Specifically, the hole location data includes the engineering coefficient composed of Cpk, Ca, and 3Sigma, the hole deviation data composed of the deviation value in the X direction and the Y direction deviation value in the actual coordinates of the drilling hole, and the deviation value of the tool diameter . Then, the hole position data is imported into the analysis software in text file format.

[0038] Finally, according to the hole position data, combined with image 3 From the point of view, a scatter diagram is formed by using Ex / t, that is, the variation data of the deviation in the X direction of the actual drilling hole with time, that is, the order of the drilling holes is used as the abscissa, and the deviation in the X ...

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Abstract

The invention relates to a method for analyzing the borehole deviation of a PCB drilling machine, comprising the following steps of: firstly, measuring the hole site of a borehole by using equipment to acquire corresponding hole site data; secondly, introducing the hole site data to analysis software; and finally, generating a scatter graph by using the hole site data, analyzing the deviation through the scatter graph, or generating a trend line through the scatter graph firstly and than analyzing the deviation through the trend line. The invention can most intuitively analyze through the hole site data acquired by a quadratic element measuring instrument; a target graph, a scatter graph and a trend graph can be simultaneously formed by using software; the whole analysis process is quite simple and convenient; and technicians can judge and draw a conclusion without accumulating plenty of practical experience or measuring the PCB drilling machine repeatedly to grope the root source of problems. The method not only can shorten the analysis time, but also can greatly improve the analysis precision.

Description

technical field [0001] The invention relates to an analysis method, in particular to a drilling deviation analysis method of a PCB drilling machine, and belongs to the field of numerical control drilling accuracy analysis. Background technique [0002] In today's information technology society, people's life and work are inseparable from computers and electronic product technology. In the manufacture of electronic technology products, everything is inseparable from PCB. In the processing and manufacturing of PCB, it is necessary to drill holes on the PCB for the fixed placement and welding of components. In the prior art, the drilling of the PCB is completed by a PCB drilling machine. However, in the process of processing, PCB drilling opportunities will inevitably lead to deviations in drilling due to one or another reason. Once deviations occur, the entire PCB will be scrapped, especially for high-density circuit boards. Deviations in the mounting holes will result in t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01B11/00G01B11/03
Inventor 康明生尹静静
Owner SUZHOU VEGA TECH CO LTD
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