Testing tool for circuit board

Abstract

A circuit-board testing tool comprises a lower press plate. The lower press plate is equipped with a plurality of the first supporting poles and at least one second supporting pole. A first elastic piece and a second elastic piece are respectively covered on the outside of the first supporting pole and the second supporting pole. At least one side of the lower press plate is equipped with a fixing part, and the fixing part fixes the first fixing part with the limiting part on the same side of the lower press plate via the fixing piece. A bearing plate is positioned on the first supporting pole and supported by the first elastic piece, and the bearing plate is equipped with a plurality of fixing poles. An upper press plate is positioned on the second supporting pole and supported by the second elastic piece. The part of the upper press plate which corresponds to the same side of the first clamping part fixedly positioned on the lower press plate is equipped with a second clamping part, and the hook part of the first clamping part faces to the hook part of the second clamping part. Therefore, the distance between the lower press plate and the upper press plate for clamping the circuit board to be detected can be adjusted via adjustment of the location of the first clamping part when the thickness of the circuit board to be detected changes.

Description

technical field [0001] A test tool, in particular to a test tool for testing circuit boards. Background technique [0002] see Figure 1a , which is used to show a schematic diagram of the structure of an existing circuit board testing tool. As shown in the figure, the existing circuit board testing tool 1 includes a lower pressing plate 11, on which four first supporting columns 111 and two second supporting columns 112 are arranged, and the first supporting columns 111 and A first elastic member 113 and a second elastic member 114 are sheathed on the outside of the second support column 112, and a fixing portion 115 is provided on the side 11a of the lower pressing plate 11, and the fixing portion 115 connects the first hook portion through the fixing member 116 117 is fixed on the side 11a of the lower pressing plate 11; the bearing plate 12 is erected on the first support column 111, and the bearing plate 12 is provided with four fixing columns 121 and three button swit...

AI Technical Summary

Problems solved by technology

[0004] The main disadvantage of the above-mentioned existing circuit board testing tool is that the distance between the lower pressing plate 11 and the upper pressing plate 13 sandwiching the circuit board 14 to be tested can not be adjusted, that is, The circuit board testing tool 1 can only clamp the circuit board 14 to be tested with a specific thickness

Specifically, since the positions of the first hook portion 117 and the second hook portion 131 cannot be adjusted, when the thickness of the circuit board 14 to be tested increases, the hook end 117a of the first hook portion 117 and the second hook portion 131 will The hook end 131a of the hook portion 131 may not engage with each other. On the contrary, when the thickness of the circuit board 14 to be tested decreases, the hook end 117a of the first hook portion 117 and the hook end 131a of the second hook portion 131 can hook each other, but there will be a gap between the upper platen 13 and the circuit board 14 to be tested, so the circuit board 14 to be tested cannot be firmly sandwiched

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