JPH0523389B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Technical Field The present invention relates to an inspection apparatus for an electronic circuit board on which electronic components are mounted.

Prior Art The detection tip of the above-mentioned type of inspection device generally includes a pair of contact pins that can freely move toward and away from an electronic component (tested object) mounted on an electronic circuit board, and a pin that fixes and holds this contact pin. It is composed of a holding plate, etc., and the pair of contact pins are usually inserted into the pin holding plate with their mounting pitches fixed.

However, the conventional inspection apparatus having the above configuration has the following problems.

(1) The contact pin has a fixed mounting pitch and is fixed to the pin holding plate, so each time the size of the electronic component to be inspected changes, the pitch corresponding to the different electronic component must be adjusted. It was necessary to prepare a pin holding plate having a contact pin equipment part. Therefore, setup changes are difficult and a large number of pins are required, which significantly reduces work efficiency and is extremely uneconomical.

(2) In particular, when checking electronic circuit boards mounted with electronic components of various sizes, or boards of many kinds in small quantities or in many kinds of medium quantities, it takes a lot of time to change the setup, which significantly reduces the workability and efficiency of inspection work. Was.

Purpose of the Invention The present invention has been made in view of the problems of the prior art described above, and is applicable even when checking electronic circuit boards mounted with electronic components of various sizes, or boards of various types in small quantities or in large quantities in medium quantities. , high workability,
An object of the present invention is to provide an inspection device for electronic circuit boards that can be inspected with high work efficiency.

SUMMARY OF THE INVENTION The present invention attempts to achieve the above-mentioned object of the present invention by configuring the pitch of a pair of contact pins in an inspection device to be adjustable in expansion and contraction.

Embodiments Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

FIG. 1 is a front view showing a detection tip 1 which is a main part of an electronic circuit board inspection apparatus according to the present invention.

The detection tip section 1 is used to inspect the resistance value, capacitance value, inductance, and open shot of electronic components on an electronic circuit board, and is configured as follows. That is, what is indicated by 2,2 in the figure is
These are a pair of contact pins having a detection portion that can freely come into contact with an electronic component on an electronic circuit board (not shown).

The contact pins 2, 2 are each inserted into a hole provided in the pin holding member 3, and the pin holding member is swingably supported by the pin holding frame 5 via the support pins 4, 4, and the pin holding member is The members 3 and 3 are connected to the vertical operating shaft 6
The pin touch P of each contact pin 2 can be adjusted to an arbitrary pitch by configuring the contact pin 2 to be able to swing via a wedge-shaped (or cone-shaped) pitch adjustment member 7 fixed to the lower end of the contact pin 2. Configure. Also, 8 indicates contact pins 2, 2.
9 is a coat connected to the contact pin. According to the above configuration, by vertically moving the pitch adjusting member 7 via the vertically operating shaft 6, the pin pitch P of the contact pins 2, 2 can be expanded or contracted to an arbitrary pitch.

Therefore, according to the above configuration, electronic components of various sizes can be inspected using the pair of contact pins 2, 2, and there is no need to replace the contact pins and the pin holder each time the size of the electronic component changes. do not have. Moreover, since the pitch can be changed and adjusted in a short time with an extremely simple configuration, workability and efficiency in inspection work can be greatly improved. Particularly, remarkable effects can be achieved in the inspection of electronic circuit boards mounted with electronic components of various sizes, and the inspection of electronic circuit boards of a wide variety of small quantities or of a wide variety of medium quantities on which electronic components of different sizes are mounted.

Although the connection of the wiring cord 9 is omitted in the figure, by connecting the wiring cord 9 to an LCR meter (not shown), the resistance value, capacitance value, inductance, and open short of electronic components can be inspected. It is possible.

Effects of the Invention As described above, according to the present invention, electronic components of various sizes can be inspected using a pair of contact pins and a pin holding part, and an electronic circuit mounting electronic components of various sizes can be used. It is possible to inspect boards and test boards of various kinds and small quantities or of many kinds and medium quantities on which electronic components of different sizes are mounted in a short time. As a result, workability in inspection work,
This can improve work efficiency.

[Brief explanation of the drawing]

FIG. 1 is a front view showing an embodiment of the apparatus according to the present invention. 2...Contact pin, 5...Pin holding frame, 6
... Vertical movement axis, 7... Pin pitch adjustment member.

Claims (1)

[Claims] 1 Hold at least two spaced apart contact pins whose tips can freely contact electronic components on the electronic circuit board that is the object to be inspected, and the end opposite to the tip of each contact pin. A pin holding member, a pin holding frame that swingably supports each pin holding member via a support pin and allows the tip of the contact pin to open and close with the swing, and the tip of the contact pin to open and close. A bullet that applies a biasing force to both pin holding members so as to hold the contact pin, and a wedge-shaped or cone-shaped pitch adjustment member that is provided so as to abut between the ends of each pin holding member that holds the contact pin. The electronic circuit board is characterized in that the pin pitch at the tip of the contact pin is adjusted to expand or contract by sliding the pitch adjusting member in the direction of the contact pin and swinging the pin holding member that holds the contact pin. Inspection equipment.