Universal needle bed

Abstract

The invention discloses a universal needle bed in an ICT automatic alignment testing field. The universal needle bed comprises a base, a circuit board and a fixed plate, wherein the rear end of the circuit board is fixed on the base, cattle horn seats are arranged on the circuit board, double-ended needle top trays at the front end of the circuit board are connected with stitch welding discs on the cattle horn seats in a one-to-one correspondence manner through leads on the circuit board, double-ended needles are fixed on a needle board on the lower side of the front end of the circuit board,and the upper and lower ends of the double-ended needles protrude out of the surface of the needle board and respectively prop against the double-ended needle top trays and a testing adapter plate; and the fixed plate is arranged on the upper side of the front end of the circuit board. According to the universal needle bed, flat cables between the testing adapter plate; and the cattle horn seats are integrated on the circuit board, so that the signal interference and influence of the flat cables are reduced, the influence caused by the damage of an original flat cable structure to the testingaccuracy is avoided, and the testing precision is guaranteed; and besides, the damage caused to the testing adapter plate is reduced, the cost expenditure is reduced, and the testing efficiency is notinfluenced.

Description

technical field [0001] The invention relates to the field of ICT automatic alignment testing, in particular to a universal needle bed for automatic testing. Background technique [0002] In the process of automatic testing of PCB boards, ICT testers have been widely used due to their wide range of use, high test accuracy, and ability to display test results. In the ICT test process, it is necessary to use a bed of needles to export each pin in the PCB, and then lead them to the horn seat through the cable, and then connect to the test program through the cable of the horn seat. The application of multiple cables is likely to cause signal interference, and its resistance is large, energy consumption is high, and the accuracy of the test will be affected; the cable is easy to break after bending, resulting in waste of resources, and the cost of the cable The cost is higher, which in turn leads to an increase in the overall test cost. In addition, the test needle bed structur...

AI Technical Summary

Problems solved by technology

The application of multiple cables is likely to cause signal interference, and its resistance is large, energy consumption is high, and the accuracy of the test will be affected; the cable is easy to break after bending, resulting in waste of resources, and the cost of the cable The cost is higher, which in turn leads to an increase in the overall test cost

In addition, the test needle bed structure in the prior art has a large loss on the test adapter board, and the test adapter board needs to be replaced frequently. During the replacement process, the operation is relatively complicated, which affects the efficiency of the test.

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