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Control method of motion axis of flying probe testing machine and compensation method of positioning accuracy of motion shaft of flying probe testing machine

A flying probe testing machine and positioning accuracy technology, which is applied in electronic circuit testing and other directions, can solve the problems of large error accumulation and low testing accuracy of flying probe testing machine.

Active Publication Date: 2017-12-12
HANS CNC SCI & TECH
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Problems solved by technology

[0005] Based on this, it is necessary to provide a control method and positioning accuracy for the motion axis of the flying probe test machine in view of the low test accuracy of the flying probe test machine and the large accumulation of errors in the motion axis of the flying probe test machine compensation method

Method used

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  • Control method of motion axis of flying probe testing machine and compensation method of positioning accuracy of motion shaft of flying probe testing machine
  • Control method of motion axis of flying probe testing machine and compensation method of positioning accuracy of motion shaft of flying probe testing machine
  • Control method of motion axis of flying probe testing machine and compensation method of positioning accuracy of motion shaft of flying probe testing machine

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Embodiment Construction

[0036] In order to facilitate the understanding of the present invention, the method for controlling the motion axis of the flying probe testing machine and the compensation method for positioning accuracy will be described more fully below with reference to the relevant drawings. The preferred embodiment of the control method of the motion axis of the flying probe testing machine and the compensation method of the positioning accuracy is given in the accompanying drawings. However, the method for controlling the motion axis of the flying probe testing machine and the method for compensating the positioning accuracy can be implemented in many different forms, and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the control method of the motion axis of the flying probe testing machine and the compensation method of the positioning accuracy more thorough and comprehensive.

[0037] It sho...

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Abstract

The invention relates to a control method of a motion axis of a flying probe testing machine and a compensation method of positioning accuracy of a motion axis of a flying probe testing machine. The compensation method of positioning accuracy comprises the following steps that: a matrix area is set according to a testing area of a flying probe testing machine; allowable values of positioning errors of a test point matrix in an X-axis direction and a Y-axis direction are set; the X axis of the flying probe testing machine is moved to a midpoint of a connecting line between a test point A and a test point B; a laser interferometer tests positioning accuracy data of Y-axis movement of the flying probe testing machine; and the Y axis of the flying probe testing machine is moved to the test point A or the test point B; and the laser interferometer tests positioning accuracy data of X-axis movement of the flying probe testing machine. With the compensation method, the X and Y axes of the flying probe testing machine are compensated within the whole plane in the testing area, so that the high testing precision of the flying probe testing machine is ensured and a problem of low testing precision of the flying probe testing machine is solved.

Description

technical field [0001] The invention relates to the technical field of testing printed circuit boards, in particular to a method for controlling the motion axis of a flying probe tester and a compensation method for positioning accuracy. Background technique [0002] The flying probe testing machine includes an X-axis and a Y-axis. Probes driven by motors are installed on the X-axis and Y-axis. The probes are driven by the corresponding motors to move in the Z-axis direction. To make electrical measurements on printed circuit boards by making contact with solder joints on the printed circuit board. Due to the functional requirements of the flying probe testing machine, the two ends of the Y-axis motion axis are respectively erected on the two X-axis motion axes, and the distance between the two ends of the Y-axis motion axis is relatively large, and the Y-axis motion axis is installed on the X-axis by two Driven by the motor of the motion axis or by a single motor mounted o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/28
Inventor 谭艳萍王星翟学涛杨朝辉高云峰
Owner HANS CNC SCI & TECH
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