JPS62261977A - Substrate inspecting device - Google Patents

Abstract

PURPOSE:To perform secure inspection by pushing and inserting positioning pins while a pin for inspection do not contact an inspection part, positioning a substrate accurately, and abutting the pins for inspection on the inspection part properly. CONSTITUTION:A pin board jig 1 is elevated, and the printed board 5 to be inspected is guided by tapered parts 10a and 10a of guide plates almost to an inspection position and mounted on projections 3a and 3a of support parts 3 and 3. Then, a pressure base 11 is lowered to press push rods 12, 12,... against the board 5 and move down the support parts 3 and 3 against springs 15 and 15. Consequently, the pointed guide parts 4a and 4a of the positioning pins 4 and 4 are inserted into positioning holes 9 in the center, the board 5 slid on the projections 3a and 3a and is accurately positioned, and the contact part 2a of the pin 2 for inspection abuts on the inspection part 8 properly to perform secure inspection.

Description

DETAILED DESCRIPTION OF THE INVENTION (a) Field of Industrial Application The present invention relates to a board inspection device for a printed circuit board on which various components such as resistors and capacitors are mounted.

(B) Conventional technology Conventionally, this type of board inspection apparatus has been used, for example, in Japanese Patent Application Laid-Open No.
As disclosed in Japanese Patent No. 143280, etc., after positioning and fixing a board to be inspected, a bin board jig equipped with an inspection bin is raised to perform an inspection.
The positioning of the flexible board with respect to the pin board jig is performed at the tread of the board.

However, in the case of the above-mentioned conventional example, if there is a dimensional error in the board to be tested, the test pins do not accurately touch the test points of the board to be tested, which may cause problems in the standard inspection.

(c) The invention is designed to solve the above-mentioned drawbacks of the conventional example, and even if there is a dimensional error in the board to be inspected, the inspection pins can be accurately placed at the inspection point of the board to be inspected. The object of the present invention is to provide a board inspection device that makes contact with the substrate.

(b) Means for solving the problem: An inspection pin that contacts the inspection section of the printed circuit board to be inspected, a positioning pin for the positioning hole of the printed circuit board, and a fixing pin for each inspection section of the printed circuit board. By pressing the printed circuit board in the direction of the test pin, a pinboard jig is provided with a support part that supports the test pin in a state where it is not in contact with the pin board jig, and the support part supports the test pin in a state where the test pin is not in contact with the pin board jig. and a pressing portion that moves in the direction of the pin-pound jig and inserts the positioning pin into the positioning hole.

-) Effect According to the above configuration, the printed circuit board for damage inspection is in a free state where the inspection pins are not in contact with the inspection part due to the support part! After being supported by the pins, the positioning pins are inserted into the positioning holes by the pressure of the pressing part, and the printed circuit board is fully moved to bring the testing pins into proper contact with the testing part.

(F) Example Hereinafter, a first example of the present invention will be described in detail with reference to the drawings. FIG. 1 is a sectional view of the first embodiment, and FIG. 2 is a sectional view of essential parts of the first embodiment taken along line I-i.

In the figure, (1) is a mounting plate (1a) made of acrylic resin.
A large number of inspection pins +21 +21...
This is a pin board jig that has support parts +31 at the four outer corners, and positioning pins +41 and +41 on both sides. (5) is a printed circuit board for inspection, which is equipped with a capacitor (6), a resistor (7), etc., and includes the inspection pin +41f.
An inspection portion +81+8+... is formed at the position where 4+- contacts, and a positioning hole tsl isl is formed at a position corresponding to the positioning pin +41+4+.

In addition, the fi1. The printed circuit board (6) is attached to the outside of the upper surface of the temporary (la) by Theba (10a) (10a).
A guide board (10+ flol) is used to guide you.

Mana (■) is located above the pinboard jig m,
A presser pace (pressing part) equipped with a large number of pressers and rods O''4+121... on the lower surface, the presser pace fil)tI'i
The printing board fBtfill is lowered and pressed downward by the presser bar (121 (121...).

Next, the inspection pin (2), the support part (3), and the positioning pin (4) will be explained in detail with reference to FIG.

The inspection pin (2) has a contact portion (2a) at its upper end, and is attached to the mounting plate t&¥1 (la) while being biased upward by a spring +29. Further, the support part 3) is a substantially hemispherical protrusion (3) formed of a polyaceter/I/based resin having a small coefficient of friction and high abrasion resistance.
a) O! It is composed of a slidable support rod with an i-head, and is connected to the aforementioned mounting plate (
It is inserted into the mounting hole I of 1a) so that it can move up and down.

Further, a spring (16) is fitted between the lower surface of the protrusion (3a) and the upper end of the sleeve bracket, and the support portion (3) is biased upward by the spring (16). There is. The positioning pin (4) is provided with a pointed guide portion (4a) at the upper end, and is provided with a pointed guide portion (4a) as described in @description i! The positioning pin (4) is press-fitted into the flange (4b).
), the verticality and height are accurately determined.

In the mold inspection device as described above, as the bin board jig upper rises, the guide plate (IOl tlOi's taber 5 (1
0a) (LOa), guide the printed circuit board (6) for inspection almost to the inspection position, and insert the projection (3a) of the support part t31131.
) (3a) Place it on the top end. At this time, the inspection department +81 +
The inspection pins i21 +21... are not in contact with 8+... (Figure 1), and the lint board (6) above is
is slightly deviated from the correct feeding position due to dimensional errors, etc., and the presser plate (11) descends and presses the preprinted board +51 with the presser bar O. As a result, the support portion +31 +31
Move downward against the bias of #'i spring uaum and insert the positioning pin into the positioning hole; 9t Fe2 +4)I
41 tip guide 1 (4a) (4a) is inserted, 1lr
In the center of the positioning hole F9) f9) marked with #, there is a guide part (4) marked with #.
a) Place the printed circuit board (6) so that the tip of (4a) is
) is accurately positioned by sliding the upper end of the protrusion (3a).

FIG. 3 is a plan view of important points of the second embodiment of the present invention, and FIG.
The same parts as those in the figure are given the same reference numerals.In Figure 1, (l4 is a positioning pin installed perpendicularly on the upper surface of the mounting plate (la), and its upper end is a substantially hemispherical protrusion (supporting pin). part) 0η through hole -, and the tip guide part (16a) protrudes a little from the upper surface of the protrusion αη.Well, the protrusion 0?
) is supported and biased upward by a spring 1w.

Also in this second embodiment, when the printed circuit board to be inspected (5) placed on the upper end of the protrusion c force is pressed downward, the protrusion αη is pressed downward against the spring (I9), and the first As in the embodiment, the positioning pin H and the positioning hole (3
), the printed circuit board (5) is accurately positioned. Moreover, in this second embodiment, the protrusion θη is integrally attached to the positioning pin, so the inspection part i81
This is particularly effective in terms of space for a branch inspection printed circuit board (6) that has many f81...

FIG. 4 is a sectional view of main parts of the third embodiment of the present invention, and FIG.
The same parts as those in the figure are given the same reference numerals. .

In the figure, the example shows a support part with a spherical upper end and a serrated part 211't on a part of the lower side surface, and a positioning pin (four pointed guide parts (23a)) is slightly inserted from the upper end of the through hole. 1 is a gear that is rotatably attached to the pin board jig (l) and is screwed into the serrated S ring, and q is a gear that is screwed into the serrated part with the gear (24!). , is an L-shaped member that is biased in the direction of separating from the support part by a spring force.
WJ is in contact with the above-mentioned cross-shaped member (c). Also, C
This is a recess that accommodates the end of the 2811/i+iTI calligraphy member (Inc.).

In this third embodiment as well, when the printed circuit board (5) for inspection placed on the upper surface of the support part 4 is pressed downward, o
ft support part 120) is pressed downward against the force of the spring, and the positioning pin: ^
The printed circuit board (5) is positioned by the positioning hole (9) and the positioning hole (9). Moreover, in this third embodiment, when the supporting portion (the shaft) moves downward, the rotation of the gear 241 causes the cursor-shaped member (to) to rise, and the positioning pin (231) also rises. Board (5)
positioning is done in a short time.

(G) Effects of the Invention According to the present invention, it is possible to provide a board inspection device that can accurately position the printed circuit board and perform reliable inspection even if a dimensional error occurs in the printed circuit board to be inspected. .

[Brief explanation of drawings]

The drawings are all related to the present invention: @1 Figure r/'i is a cross-sectional view of the first embodiment, Figure 2 is a cross-sectional view of the main part of the @1 example, and Figure 3 is a cross-section of the main part of the vJ2 embodiment. 4 are main part Ffr side views of the third embodiment. (1)... Pin board jig, (2)... Inspection pin, (3) Cap... Support part, (4) 061M... Positioning pin, (6)... For inspected Printed circuit board, (8)・
...Inspection part, (river...presser base (pressing part), 0η.
・・Tsuko－←H→4゜Appearance 3# Denki Co., Ltd. agent Patent attorney Takuji Nishiju (1 other person) Figure 1 1? sugar

Claims (1)

[Claims] An inspection pin that contacts an inspection section of a printed circuit board to be inspected, a positioning pin that is inserted into a positioning hole of the printed circuit board, and a support section that supports the printed circuit board in a state where the inspection pin is not in contact with the inspection section. By pressing the pin board jig and the printed circuit board toward the inspection pin side, the support part is moved in the direction of the pin board jig, and the positioning hole is inserted into the positioning hole. A board inspection device consisting of a pressing part into which a pin is inserted.