Design method of horizontal flying probe test machine

Abstract

The invention is suitable for the field of flying probe test machine manufacturing, and provides a design method of a horizontal flying probe test machine. The horizontal flying probe test machine comprises a bed body, span beams which are arranged above the bed body, and test heads which are movably arranged on the span beams. The design method comprises the steps that a first cross beam, a second cross beam and a third cross beam are suspended above the bed body in the same direction; two span beams are suspended beneath first, second and third cross beams; two first drive devices which drive two span beams to move along the first cross beam are arranged on both sides of the end part of the first cross beam; the first cross beam is located in the middle of the bed body; and the second cross beam and the third cross beam are respectively located on both sides of the bed side. According to the invention, the first drive devices are arranged in the middle of the bed body to drive the middle position of the span beams; the horizontal flying probe test machine has the advantages of short overall span, large test range and high test precision; a single-drive mode is used to reduce the cost; and the precision consistency of the drive ends and the driven ends of the span beams is improved.

Description

technical field [0001] The invention belongs to the field of manufacturing a horizontal flying probe tester, in particular to a design method of a horizontal flying probe tester. Background technique [0002] The flying probe testing machine is a device that is driven by a motor to quickly move the probe to touch the pad or device pin of the test board and measure the electrical properties. The main effects of the flying probe testing machine are precise motion control, reliable electrical performance, Fast test efficiency, diverse test capabilities, and a good mechanical structure are the keys to achieve the above effects. With the development of high-density, multi-layer, and miniaturized PCB boards, the line width and line spacing of PCB boards continue to shrink, and the requirements for testing accuracy and testing efficiency of flying probe testing machines are also getting higher and higher. [0003] According to the structure, the flying probe testing machine can us...

AI Technical Summary

Problems solved by technology

[0008] The purpose of the embodiment of the present invention is to provide a design method of a horizontal flying probe tester to solve the problem of inconsistency in accuracy between the driving end and the driven end of the existing unilateral drive tester

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