Testing device and testing method for mobile phone PCB

A PCB board and testing device technology, applied in the field of circuit testing, can solve problems such as increased production costs and high unit prices of probes

Active Publication Date: 2021-10-08
广州弘高科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The improvement direction of the above-mentioned patents is to improve the probe of the flying probe device into a split probe connected by an elastic member, or the middle part of the probe is elastic, or the probe is installed on the elastic member, which are all opposite to the probe. The improvement of the needle, so that the unit price of the probe is getting higher and higher
and the probe is a consumable part, which greatly increases the production cost by improving the design of the probe to achieve a soft landing

Method used

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  • Testing device and testing method for mobile phone PCB
  • Testing device and testing method for mobile phone PCB
  • Testing device and testing method for mobile phone PCB

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Experimental program
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Effect test

Embodiment 1

[0045] Because the probe is a consumable part, improving the probe will make the unit price of the probe higher and higher, and the use cost of the equipment will also be higher and higher. Therefore, how to realize the probe without improving the probe Soft landing is a problem that needs to be solved urgently. One of the solutions to the problem is to reduce the contact speed between the probe and the PCB board, but reducing the movement speed of the probe will lead to a decrease in the working frequency of the probe, which will affect the test efficiency.

[0046] In order to solve this technical problem, such as Figure 1-3 As shown, provide:

[0047] A test device for a mobile phone PCB board, comprising:

[0048] frame;

[0049] jig 1, which is arranged on the frame, and jig 1 is used for positioning the PCB board;

[0050] Industrial robot 2, which is arranged on the frame;

[0051] The flying probe test axis 3 is arranged at the output end of the industrial robot 2, ...

Embodiment 2

[0089] Since the trajectory of the free end of the first rocker arm 3d is an arc, this makes it difficult to calculate the angle of the detection end of the probe module 3e when the detection end of the probe module 3e is in contact with the PCB board. In order to solve this technical problem, as Figure 8 and 9 As shown, the following preferred technical solutions are provided:

[0090] Flying Probe Test Axis 3 also includes,

[0091] The second rocking arm 3g, one end of which is installed on the mounting frame 3a through a rotating pair, the second rocking arm 3g is parallel to the first rocking arm 3d;

[0092] The two ends of the connecting rod 3h are respectively hinged with the free end of the first rocker arm 3d and the free end of the second rocker arm 3g, and the probe module 3e is installed on the connecting rod 3h.

[0093] Specifically, the mounting bracket 3a, the first rocker arm 3d, the second rocker arm 3g and the connecting rod 3h constitute a parallelogram...

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Abstract

The invention relates to the field of circuit testing, in particular to a testing device for a mobile phone PCB. The testing device comprises a rack, a jig and an industrial robot; a mounting frame which is arranged at the output end of the industrial robot; a motor which is mounted on the mounting frame; an eccentric shaft of which one end is coaxially mounted on an output shaft of the motor; a first rocker arm of which one end is mounted on the mounting frame through a rotating pair, wherein a sliding groove is formed in the middle of the first rocker arm, the length direction of the sliding groove is parallel to the length direction of the first rocker arm, and the other end of the eccentric shaft is inserted into the sliding groove and is in sliding fit with the sliding groove; a probe module which is arranged at the free end of the first rocker arm; and a controller which is used for acquiring the test data of the probe module. According to the present invention, the speed of the probe module approaching the PCB is reduced through a quick return mechanism, and the lower half part of the first rocker arm is made of an elastic material, so that the slow soft landing of the probe module is realized, and the working frequency of the probe module is not reduced.

Description

technical field [0001] The invention relates to the field of circuit testing, in particular to a testing device for a mobile phone PCB. The invention also relates to a testing method of a testing device for a mobile phone PCB board. Background technique [0002] At present, there are mainly two methods for PCB electrical testing: one is needle bed in-circuit testing (ICT), and the other is flying probe testing. Although the test efficiency of the flying probe test system is slightly inferior to that of the ICT test, the flying probe test system has the advantages of speed, economy, and flexibility compared with the bed of needles online test. [0003] Constrained by the spacing of the solder joints, for some high-density PCB boards, the coverage rate of the bed of needles test can only reach 60% to 70%, while the flying probe test system uses arbitrarily movable The probe is used for testing, and the probe has a certain angle, the test coverage can reach more than 90%, and...

Claims

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Application Information

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IPC IPC(8): G01R31/28G01R1/067G01L1/22G05D15/01
CPCG01R31/2808G01R1/06722G01L1/22G05D15/01
Inventor 王辉杨鹏
Owner 广州弘高科技股份有限公司
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