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Crossmember unit for a test apparatus for printed circuit boards, and test apparatus having said crossmember unit

A technology for printed circuit boards and test devices, which is applied in the field of test devices for printed circuit boards, can solve problems such as increasing or decreasing scanning density, and achieve the effect of increasing accuracy and increasing scanning rate

Active Publication Date: 2015-11-18
ATG路德迈股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If such a finger testing machine must be adapted to changing processing conditions, additional crossheads must be fitted or existing crossheads must be removed or refitted, perhaps due to the need to increase or decrease scan density

Method used

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  • Crossmember unit for a test apparatus for printed circuit boards, and test apparatus having said crossmember unit
  • Crossmember unit for a test apparatus for printed circuit boards, and test apparatus having said crossmember unit
  • Crossmember unit for a test apparatus for printed circuit boards, and test apparatus having said crossmember unit

Examples

Experimental program
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Embodiment Construction

[0038] figure 1 A three-dimensional illustration of a testing device 1 with a testing finger (a so-called finger testing machine) for testing printed circuit boards is shown as an embodiment of the invention.

[0039] according to figure 1 In the illustration in , the testing device has two beam units 2 mounted on two mounting beams 3 . For the purposes of the present invention, the mounting beam 3 forms a platform. Each beam unit 2 is formed by a frame 4 with additional means mounted thereon. Framework 4 is described in more detail below. Each frame 4 carries a plurality of linear guides (rails) 5, on each of which two positioning units 6 are mounted to be able to traverse. Each of the positioning units 6 can be driven by a stator unit 7 and carry a test finger 8 .

[0040] For other orientations, a Cartesian coordinate system with spatial directions x, y, z is specified, where, without limiting generality, spatial direction x is designated as longitudinal x, spatial dir...

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PUM

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Abstract

The invention relates to a crossmember unit (2) for a test apparatus (1) for printed circuit boards, wherein the crossmember unit (2) has at least one crossmember (9), which spans a test area in which a printed circuit board to be tested can be arranged, and is designed to receive positioning units (6) for test fingers (8) in a linearly movable manner in such a way that the test fingers (8) can scan at least a portion of the test area. According to the invention, the crossmember unit (2) is designed to receive at least two linear guides (5), which are independent of one another, for guiding in each case at least one of the positioning units (6). The invention is also directed to a test apparatus (1) having at least one crossmember unit (2) of this kind.

Description

technical field [0001] The present invention relates to a beam unit for a test device of a printed circuit board and a test device for a printed circuit board having such a beam unit. Background technique [0002] The test devices used to test printed circuit boards can basically be divided into two groups: the finger test machine (flying probe) group and the parallel test group. A parallel tester is a testing device which, via an adapter, can simultaneously contact all or at least most of the contact points of the circuit board to be tested. A finger tester is a test device for testing unequipped or equipped printed circuit boards by sequentially scanning a single contact point with two or more test fingers. [0003] The test fingers are usually mounted on slides along which the beam can be traversed, which in turn is guided and can traverse on guide rails. Each test finger has a swivel arm at the end of which is formed a contact for contacting the circuit board. By trav...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R1/067G01R1/073G01R31/28
CPCG01R1/06705G01R31/2808G01R1/06794G01R1/07392G01R31/2806
Inventor 维克托·罗曼诺夫贝恩德-乌利齐·奥特
Owner ATG路德迈股份有限公司
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