JPS6275358A - Circuit board inspecting device - Google Patents

Abstract

PURPOSE:To enable a continuity inspection for both sides of a double-side circuit board simultaneously, by finely adjusting a circuit board support table to bring a mark to a position as specified. CONSTITUTION:A guide strut 3 is erected on a support base 2 and a fixed board 6a with an upper pin board having a downward contact pin 4 is provided at the upper part of the strut 3. A mobile board 8 with a lower pin board 8a having a upward contact pin 9 is supported movably upwards with the strut 3 between the fixed board 6 and the base 2. A frame-shaped holding member 10 is fitted slidably upwards and downwards into the strut 3 above the board 8a and below the board 6a. Then, elastic material 14 is interposed respectively between the fixed board 6 and a member 10 and the mobile board 8 and the member 10 and a circuit board supporting table 25 supporting a double-side circuit board W to be inspected is supported on the member 10 in such a manner as to be finely adjustable longitudinally and horizontally. The table 25 is finely adjusted so that a mark on the circuit board W comes to a specified position and thus, the circuit board W is held between the boards 6a and 8a to inspect both sides thereof simultaneously.

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to a mounted circuit board (hereinafter simply referred to as a circuit board) as an object to be inspected, which is assembled by mounting various electronic components on a flat circuit board. ), and particularly relates to a double-sided circuit board testing device that tests a test object with various electronic components mounted on both sides of the circuit board.

[Conventional technology]

This type of circuit board testing device, of which 12 have already been proposed, tests continuity by bringing a large number of contact bottles, or contact probes, into contact with the circuit board, which has various electronic components mounted on only one side of the circuit board. are doing.

In other words, the circuit board inspection device described above resiliently plants a large number of contact pins on a pin board, and connects these contact pins from each electronic component mounted on one side of the circuit board to the other side of the circuit board. The protruding conductor portion is advanced and pressed against the protruding conductor portion from above or below, thereby testing electrical continuity.

In this way, the circuit board used as the object to be inspected has various electronic components mounted on its lower side, and the other side of the circuit board forms the inspection circuit surface, so the contact bin is placed on the other side of the object to be inspected. Measurements and tests are performed by contacting the circuit board from the side.

[Problem that the invention seeks to solve]

However, as various electronic components used in recent circuit boards are becoming smaller and smaller, the 13-way neck arrangement is no longer available, and as a result, the design of the circuit board, that is, each side is Since these double-sided circuit boards are mounted and used, it is desirable to conduct the continuity test for these double-sided circuit boards from the top and bottom of the double-sided circuit boards at once from the top and bottom.

On the other hand, with the high-density arrangement of electronic components, the arrangement of contact bins has also become high-density, and the contact pin itself has become thinner than 41 mm.
ing. Therefore, if there is even a slight deviation in the relative position of the circuit board and the contact bottle, the contact bottle will come into contact with a different position from the inspection point on the circuit pattern to be contacted.

However, no matter how accurately the holes used for positioning the circuit board are made, they are made at a different time from the time when the circuit pattern of the circuit board is made, so the relative position to the circuit pattern may vary. Manufacturing errors are likely to occur.

The present invention has been made in view of the above-mentioned problems, and its purpose is to be able to perform continuity tests on both sides of a double-sided circuit board at the same time, and to accurately place contact bins on high-density circuit board patterns. An object of the present invention is to obtain a circuit board inspection device whose tips can be brought into contact with each other.

[Means for solving problems]

The circuit board inspection device of the present invention has a plurality of guide posts established on a support base, and supports a fixing plate having an upper pin board having a downward contact pin on the top of each guide post, and the fixing plate and the support Between the bases, a movable plate having a lower pin board having contact pins facing upward is supported by each guide column so as to be movable upward, and is located above the lower pin board and above the upper pin board. A frame-shaped holding member is fitted to each of the guide columns so as to be slidable up and down, and an elastic material is interposed between the fixed plate and the holding member and between the movable plate and the holding member, respectively, A circuit board support table for positioning and supporting a double-sided circuit board to be inspected with its upper and lower surfaces exposed vertically is supported on the holding member so that it can be finely adjusted in the horizontal direction back and forth and left and right.
A circuit board position detection device is provided above the circuit board support table to detect the position of the index on the upper surface of the double-sided circuit board that is positioned and supported by the circuit board position detection device, and the holding member is provided with a circuit board position detection device that detects the position of the index on the top surface of the double-sided circuit board that is positioned and supported. The present invention is characterized in that a fine adjustment device is provided for making fine adjustments.

[For production]

With the above configuration, in the present invention, the circuit board is sandwiched between the lower pin board and the upper pin board due to the upper limit of the lower pin board, and both sides of the circuit board are inspected simultaneously. In addition, at the same time as the circuit pattern is produced on the circuit board, appropriate marks or indicators are formed on the circuit board, and after the circuit board is mounted on the circuit board support table, the support table is finely adjusted back and forth and left and right. The indicator is brought to a predetermined position, and after this is detected by the circuit board position detection device, an inspection is performed.

〔Example〕

Hereinafter, the present invention will be described with reference to an illustrated embodiment.

In FIG. 1, reference numeral 2 denotes a flat rectangular support base, and four guide columns 3 are installed at each corner of the support base 2. A fixing plate 6 supporting an upper pin board 6a having a large number of downward contact pins 4 is horizontally fixed to the upper part. The upper pin board 6a has a spacer plate 7 on the lower surface of the fixed plate 6.
It is supported through etc. The top end of the contact bin 4 is connected to an upper connector (not shown) via a conductive wire 4a. This connector is connected to a continuity test meter (not shown).

On the other hand, below the fixed plate 6, each of the guide columns 3
A movable plate 8 that supports a lower pin board 8a via a spacer plate 5 is fitted in the upper and lower directions, and a large number of contact bins 9 are mounted on the upper surface of the lower pin board 8a. It is designed to move upward and elastically.

Note that the lower end of the contact bin 9 is connected to a lower connector 2 (not shown) through a conductive wire 9a. Movable plate 8
is supported by the guide column 3 by a bearing 8b.

Further, the conductive wire 9a is connected to the aforementioned meter.

Between the upper pin board 6a and the lower pin board 8a, each guide column 3 has a flat frame-shaped holding member 10 having a large opening 10a in the center, which is slidable upwardly and downwardly via a bearing 10b. As shown in FIG. 2, this holding member 10 has an elastic material, such as a compression coil spring 14, interposed between it and the movable plate 8 and between it and the fixed plate 6, respectively. 15 is held in a floating state. That is, on the movable plate 8, a pair of guide pins 11 are erected facing upward, and a pair of guide pins 11 are provided on the holding member 10 positioned directly above each guide pin 11. A guide pin 12 is installed so as to penetrate vertically. Furthermore, a pair of guide pins 13 of different sizes are vertically provided in the portion of the fixing plate 6 located directly above each guide pin 12. And each guide pin 1
1 and the downward protrusion of each guide pin 12, the coil spring 14 is elastically interposed between the holding member 10 and the movable plate 8. The coil spring 15 is elastically interposed between the upper protrusion of each guide pin 12 and the guide pin 13 so as to be interposed between the holding member 10 and the fixing plate 6. The upper coil spring 15 is formed to have a lower elasticity than the lower coil spring 14.

As shown in FIG. 3, a guide sleeve 17 is fixed to the upper pin board 6a, and a driving pin 16 is provided in the sleeve 17 so as to be vertically displaceable. A compression coil spring 18 interposed between the two ends is compressed to the limit of the downward movement. and,
Such sliding pins 16 are also provided at other locations on the upper pin board 6a, and a protection plate 19 is fixed to the lower ends of these sliding pins 16 to protect the tips, ie, the lower ends, of the upper contact pins 4. ing. The lower end of the upper contact pin 4 is slidably inserted through the protection plate 19.

Similarly, the lower pin board 8a is also provided with a guide sleeve 20, a sliding pin 21, and a compression coil spring 22, which have similar functions, and one driven pin 21 is pressed by the spring 22 to the limit of its upward movement. ing.

A lower contact pin 9 is provided at the upper end of the sliding pin 21.
A protection plate 23 is fixed to protect the tip or upper end of the lower contact pin 9, and the upper end of the lower contact pin 9 is slidably inserted through the protection plate 23.

In FIG. 3, a circuit board support table 25 is supported by the holding member 10 so as to be finely adjustable horizontally in the front, rear, left and right directions. The structure for fine adjustment will be described later. The circuit board support table 25 has a plurality of positioning pins 26 implanted on its upper surface, and the circuit board W to be inspected on both sides is attached to the pins 26.
The circuit board W is positioned with respect to the support table 25 by being fitted into the positioning hole. Circuit board support plate 2
Reference numeral 5 has a rectangular frame shape, and a base frame 27 is fixed to the lower side of the four sides. Further, a support frame 28 is provided around the base frame 27 to accommodate and support the base frame 27, and is fixed to the holding member 10 with bolts 29.

As shown in FIG. 4, the support frame 28 is a rectangular plate-shaped frame, and the circuit board support table 25 inside it is also centered so that the lower surface of the circuit board W supported by it can be exposed downward. It is a plate with an opening at the bottom and also forms a rectangular frame.

A pair of opposing elongated X-axis direction guide members 30, 31 are fixed to the front and rear sides of the support frame 28. These guide members 30, 31 are also shown in the left and right portions of FIG. 5, which shows the V--■ cross section of FIG. 4. Then, along the inside of each of these guide members 30° 31
Elongated guided members 32 and 33 are provided so as to slide while being guided in the axial direction (left and right direction in FIG. 4).
It is attached to the sides. Therefore, the rectangular frame 34 can be displaced in the X-axis direction relative to the support frame 28 while being guided by the X-axis guide members 30.31.

On the outside of the other two opposing sides of the rectangular frame 34, there is a long and narrow Y.
An axial guide member 35,36 is fixed. Also,
The Vl-Vl cross section of FIG. 4 is shown.1 As shown from the left side of FIG.
A compression spring 41 is interposed between the pin 40 and the pin 40 protruding from. In addition, as shown on the right side of Fig. 6, the rectangular frame 3
An abutting plate 43 is provided so as to stand up integrally from the mounting member 42. On the other hand, a micrometer head MCX is attached to a mounting number 44 on the support frame 28, and a probe 45 is in contact with the tip of the micrometer head MCX.

The displacement of the rectangular frame 34 to the left in the X-axis direction (in FIG. 6) is performed against the elasticity of the compression spring 41.

Guided members 47 and 48 are positioned outside the left and right Y-axis direction guide members 35 and 36 of the rectangular frame 34, and are guided by them and slidably displaced in the Y-axis direction. These guided members 47, 48 are fixed to the lower side of the base frame 27 of the circuit board support table 25, as shown in FIG. Therefore, the circuit board support table 25 can be moved by one movement in the Y-axis direction while being guided by the Y-axis guide members 35 and 36. On the other hand, the rectangular frame 34 supporting the circuit board support table 25 is connected to the X-axis direction guide member 30. ．． 31 in the X-axis direction, the circuit board support table can also be slid in the X-axis direction.

Fine adjustment of the rotary substrate support table 25 in the X-axis direction is performed by rotating the X-axis circumferential micrometer head MCX. By adjusting the rotation of the micrometer head MCX, the abutting plate 43 is displaced to the left while compressing the compression spring 41, and to the right by the extension force of the compression spring 41, as shown in FIG.

On the other hand, fine adjustment of the rotary substrate support table 25 in the Y-axis direction is performed using the Y-axis circumferential micrometer head MCY shown in FIG.
This is done by rotating the . As shown in the figure, the micrometer head MCY is attached to a mounting member 51 that protrudes upward from a member 50 integral with the rectangular frame 34, and a member 52 fixed to the lower surface of the rotary substrate support table 25. , there is a columnar member 54 having a measuring tip 53 at its tip.
The proximal end of is fixed by screwing. Further, a compression spring 57 is interposed between the inner side of the rectangular frame 34 on the side opposite to the micrometer head MCY and the pin 56 of the rotary substrate support table base frame 27. Slight adjustment of the rotary substrate support table 25 in the Y-axis direction can be performed in the same manner as in the X-axis by first operating the Y@ micrometer head MCY.

As shown in FIG. 2, a motor M1 with a brake is installed on the rear upper surface of the support base 2, and an inverted heart-shaped first cam member 6 is attached to the output shaft 60 of the motor M1.
1 and two coaxial second cam members 62a, 62b are attached.

Further, a bracket 62 is fixedly installed at a position on the support base 1 close to the rotation area of the first cam member 61, and an actuation lever 63 is attached to the support shaft 64 of the bracket 62.
It is pivoted by. Furthermore, this operating lever 63
One end portion 63a is in contact with the periphery of the first cam member 61, and the other end portion 63b of the actuating lever 63 is connected to the abutting member 66 attached to the bottom surface of the lower plate 8C of the movable plate 8. The springs 14 and 15 are elastically abutted by the elasticity of the springs 14 and 15, which tend to expand. In addition, the second cam member 6
As shown in FIG. 1, an upper limit switch Sa and a lower limit switch sb are provided on the movement locus of 2a and 62b, and the upper limit switch 3a is connected to the lower pin board 8 as described later.
a and the movable plate 8 rise to the upper limit position, the cam 62
a to stop the motor M1, and the lower limit switch Sb is activated by a cam 62b when the lower pin board 8a and the movable plate 8 are lowered to the lower limit position as described later. There is.

As shown in FIG. 2, the upper pin board 6a and the contact bottle tip protection plate 19 supported below are movable between the active position shown by the solid line in the figure and the position shown by the dashed line retreating from the operating position. ing.

To enable such movement, the upper pin board 6
The upper ends of the spacer plates 7 at both ends of a are connected to a movable plate 70 as shown in FIG. It is supported so as to be movable along a guide 72.

As shown in FIG. 2, stoppers 74.7 are provided at the front and rear portions of the lower surface of the fixed plate 6, and abut against projections (not shown) of the movable plate 70 to define the forward and backward positions of the movable plate 70.
5 is fixed. In addition, a detection switch 76.7 is used to detect the forward end position and the backward end position of the moving plate 70.
7 is attached to the lower surface of the fixed plate 6.

A reversible motor M2 is installed on the rearward extension of the fixed plate 6 in order to move the upper pin board 6a between the solid line position and the chain line position in FIG. Reversible motor M2
The rotational drive shaft of the seventh
As shown in the plan view of the figure, a drive pulley 80 is fixed. On the other hand, a floating pulley 81 is attached to the lower front part of the fixed plate 6, and both ends of a wire rope 82 passed to these pulleys 80 and 81 are attached to the side surfaces of the metal fitting 71 at 83 and 84. They are connected at the positions shown. Therefore, by rotating the motor M2 in one direction, the moving plate 7
0 and the upper pin board 6a move forward, and the rotation of the motor M2 in the other direction causes the moving plate 70 and the upper pin board 5 to move forward.
a G, t'Et retreat.

When the upper pin board 6a reaches the forward end position, it comes into contact with the stopper 74 and stops, and the detection operation of the detection switch 76 stops the rotation of the motor M2 in one direction. On the other hand, when the upper pin board 6a reaches the rearward end position, it comes into contact with the stopper 75 and stops, and the rotation of the U-tater M2 in the other direction is stopped by the detection operation of the detection switch 77.

As shown in FIG. 2, brackets 86 are fixed to both sides of the upper surface of the fixed plate 6, and the middle of a lever 88 is pivotally connected to the brackets 86 by pins 87. One end of the lever 88 is connected to the plunger 9 of the solenoid drive device SL (Figs. 1 and 2).
0 via a link 91. The lowering limit of the one end of the lever 88 is determined by a cushion stopper 92. The other end of the lever 88 is in contact with the upper end of the positioning bin 93. The positioning pin 93 is placed vertically within the sleeve 94 that receives it! ! tJJ freely and is constantly biased upward by a coil spring 95.

On the other hand, a positioning pin receiver 96 is fixed to the movable plate 70 with an upwardly facing hole on the right side.

- When the F section pin board 6a reaches the forward position indicated by the solid line in FIG. 2 and stops, the proximity switch 98 (upper right in FIG. 1) is actuated to actuate both solenoid drive devices SL.

This causes the plunger 90 to move backward and the lever 88 to move back.
is rotated counterclockwise in FIG. 2, and the end of the lever 88 pushes down the locating pin 93 against the force of the spring 95 into engagement within the upwardly facing hole of the locating pin receiver 96.

As a result, the moving plate 70 d3 and the upper pin board 6a
is locked in a predetermined forward position. Further, when the upper pin board 6a retreats, the solenoid drive device SL is turned off, the positioning pin 93 is pushed up by the spring 95, and the movable plate 70 of the upper pin board 6a is unlocked.

Both sides of the circuit board W are inspected, and at the same time as the pattern is formed, marks or indicators (for example, marks) are placed near both ends of the circuit board W. This indicator is
Since it is formed simultaneously with the pattern, it is always in a constant positional relationship with respect to the pattern. Separately from the formation of the pattern and index, a positioning hole into which a circuit board positioning pin 26 shown in FIG. 3 is inserted is formed at an appropriate position on the circuit board W.

In order to detect the position of the index on the circuit board W, the fixing plate 6
The circuit board position detection device 100 is attached to the mounting member 10 at both ends of the mounting member 10.
1. As is clear from FIG. 7, the front central portion of the fixing plate 6 is open as shown at 102, and the circuit board position detection device 100 is provided so as to protrude downward from the open portion.

The circuit board position detection device 100 is, for example, a microscope, and the optical system of its lens has a soil mark similar to the index formed on the circuit board. The lens index is the circuit board W
The circuit pattern is provided so as to accurately match the position of the index on the circuit board when the circuit pattern takes a predetermined relative position with respect to the contact pins 4 and 9.

The correspondence between the index on the circuit board W and the index on the circuit board position detection device 100 can be detected by looking through a microscope with the naked eye from above.

On the other hand, instead of looking directly into the microscope, as shown in FIGS.
00, and the coincidence of the indexes may be confirmed by viewing the screen of the CRT device 105.

Next, the operation of the circuit board inspection apparatus described above will be explained.

Before starting the inspection using this device, the upper pinboard 6a
is in the retracted position shown by the chain line in FIG. 2, so that the upper surface of the circuit board support table 25 is exposed below the front opening 102 of the fixing plate 6 shown in FIG. Therefore, the positioning pin 26 is attached to the upper surface of the rotary substrate support table 25.
(FIG. 3), the circuit board W can be easily placed and positioned.

Even when the circuit board W is positioned and mounted in this manner, the relative positions of the circuit pattern and the positioning holes are not always constant due to processing errors. Therefore, while looking through the microscope or while looking at the CRT device, until the mark at the correct relative position to the circuit pattern of the circuit board W matches the mark of the optical system of the microscope, which is the circuit board position detection device. , differentially adjust the circuit board support table 25 back and forth, left and right, that is, in the Y-axis direction and the X-axis direction. This can be done by manually rotating the micrometer heads MCY and MCX.

When the positioning of the circuit board is completed in the above manner, the motor M2 is driven to move the upper pin board 6a, which is in the retracted position, forward to the solid line position in FIG. 2, and to position it above the circuit board W. . As a result, the solenoid drive unit NSL is activated, and the positioning pin 93 is lowered to lower the moving plate 7.
0 and upper pinboard 6a in place.

This drives the motor M1, and its output shaft 60
a first cam portion 61 and a second cam member 62a fixed to the
62b rotate together, the first cam member 61 causes the actuation lever 63 to pivot clockwise in FIG. 2 around the support shaft 64. As a result, one end 63a of the operating lever 63 is pushed downward, and the other end 63b pushes the movable plate 8 upward via the abutting member 66.

As the movable plate 8 rises due to this push-up, the lower coil spring 14 transmits a pushing force to the holding member 10, causing the holding member 10 to also rise. The pushing up force is roughly transmitted from the holding member 10 to the upper coil spring 15. By the way, the upper end of the upper coil spring 15 is in contact with the fixed plate 6, and the upper coil spring 15 is in contact with the lower coil spring 1.
Since it is weaker than 4, the upper coil spring 15 begins to be compressed when the upper limit of the movable plate 8 starts. At this time, the lower coil spring 14 is hardly compressed, and therefore the upward contact pin 9 of the lower pin board 8a on the movable plate 8
There is almost no change in the relative distance from the circuit board W on the holding member 10. On the other hand, the circuit board W on the holding member 10 and the upper pin board 6 are compressed by the upper coil spring 15.
The distance between the downward contact pins 1 to 4 of a is gradually reduced, and finally the inspection point on the upper surface of the circuit board W comes into contact with the downward contact pin 4.

After reaching this state, the compression of the upper coil spring 15 stops. Further, the upper coil spring 15 has a weak elasticity, and when the downward contact pin 4 first comes into contact with the electronic component on the upper surface of the circuit board W, the upper coil spring 15 exerts a soft buffering effect and protects the component. The electronic components on the top surface of the circuit board W are often flat packages, and the numerous bent conductive arms protruding around them are extremely weak and deform with a force of more than 30 grams, for example. The soft buffering effect of the upper coil spring 15 is
It is possible to bring the contact pin 4 into contact with the weak conductive arm of the flat package with a predetermined weak force, thereby preventing accidents such as peeling of the conductive adhesive surface and ensuring accurate pressing force.

In this way, the downward contact pin 4 is brought into contact with the upper part of the circuit board with a predetermined force and a buffering effect,
After securing a predetermined conduction relationship without undue stress, the movable plate 8 continues to rise while causing compressive deformation of the lower coil spring 14, until the upper end of the upward contact pin 9 touches the bottom surface of the circuit board W. It contacts the electronic component and creates a predetermined conductive relationship that can be read by the test display instrument.

In this way, when the movable plate 8 reaches the upper limit position, the upper limit switch Sa (FIG. 1) is pushed by the second cam 62a and closed. Then, a brake is applied to the motor M1 and the motor M1 is stopped.

On the other hand, as a result, a timer (not shown) for regulating the measurement and inspection time is activated, and the motor M1 starts rotating again after the measurement and inspection time of several seconds to several tens of seconds has elapsed.

Therefore, the first cam member 61 is connected to the lower pin board 8a.
, the operating lever 63 is allowed to rotate counterclockwise in FIG. 2 due to the weight of the movable plate 8, the holding member 10, etc. The second cam member 62b closes the lower limit switch Sb when the pin board 8a1 is lowered to the upper limit position such as on the movable plate 8. This stops motor M1 and applies a brake to it.

As described above, the upper and lower surfaces of the circuit board are simultaneously tested for continuity by contacting predetermined test points with the upper and lower contact pins 4 and 9. In addition, at the straight bend where the tips of the contact pins 4 and 9 contact the inspection point on the circuit board, a protection plate 19.23 shown in FIG. and then move back, contact pin 4
, 9 contact the circuit board. In this way, the tip contact portion of the contact pin 4.9 is always connected to the protective plate 19.2.
Protected by 3.

In this way, after the inspection is completed, the upper pinboard 6a is moved back to the position shown in chain lines in FIG. 2, so that the upper part of the circuit board support table 25 is opened. Therefore, the inspected circuit board W can be easily removed.

As described above, the continuity test of the double-sided circuit board W is repeatedly and continuously performed.

〔effect〕

As described above, according to the present invention, by moving the movable plate toward the fixed plate, it is possible to conduct continuity tests on both sides of the circuit board in one step, and moreover, reliably. contact 1 with a cushioning effect due to the elastic material.
- By touching bottles and electronic parts, you can prevent 10 scratches. In addition, after positioning the circuit board on the rotating base temporary support table, the rotating board support table can be finely adjusted back and forth and left and right to accurately determine the position of the circuit board relative to the contact bin. The contact pin can always be brought into contact at the correct position.

[Brief explanation of drawings]

FIG. 1 is a partially sectional front view of a circuit board inspection apparatus according to the present invention, FIG. 2 is a partially sectional side view, FIG. 3 is an enlarged vertical sectional view of a part of FIG. 1, and FIG. FIG. 1 is a plan view with the upper member removed; FIG. 5 is a sectional view taken along the line v-v in FIG. 4;
Fig. 6 is a sectional view taken along the line ■-■■ in Fig. 4, Fig. 7 is a plan view of Fig. 1 with some of the upper parts removed, and Fig. 8
The figure shows the circuit board inspection device, casing, and CR of the present invention.
FIG. 9 is a front view showing the relationship of the T device, and FIG. 9 is a side view of the same. 2... Support base, 3... Guide column, 4... Upper contact bin, 6... Fixed plate, 6a... Upper pin board, 8... Movable plate, 8a... Lower part Pin board, 9... Lower contact [-bin, 10... Holding member, 14.15... Elastic material (coil spring), 19.23
...Contact pin tip protection plate, 25...Circuit board support table, 26...Circuit board positioning bin, W
... Circuit board, 27... Base frame of circuit board support table, 28... Support frame, 30.31... X-axis direction guide member, 32.33... Guided member, 34...・Square frame, 35.36...Y-axis direction guide member, 40...
Bottle, 41...Spring, MCX, MCY...Micrometer head, 47° 48--Guided member, M1
...Motor, 61, 62a. 62b...Cam, 63...Lever, 66...Abutting member, 70...Moving plate, M2...Motor, 74.7
5...Stopper, 80...Drive pulley, 81...
Idle pulley, 82... wire, SL... solenoid drive device, 88... lever, 93... positioning pin, 94... sleeve, 96... positioning pin receiver,
100... Circuit board position detection device (microscope), 105
...CRT device. Applicant's agent: Sato -Yuichi Figure 3 Figure 68

Claims (1)

[Claims] 1. A plurality of guide posts are established on the support base, and a fixing plate having an upper pin board having downward contact pins is supported on the top of each guide post, and the fixing plate and the support base are connected to each other. A movable plate having a lower pin board having upward contact pins is supported by each guide column so as to be movable upwardly, and is located above the lower pin board and below the upper pin board. , a frame-shaped holding member is fitted to each of the guide columns so as to be slidable up and down, and an elastic material is interposed between the fixed plate and the holding member and between the movable plate and the holding member, and the holding member is placed above the holding member. In order to position and support a double-sided circuit board to be inspected with its upper and lower surfaces exposed vertically, a circuit board support table is supported that can be finely adjusted horizontally, back and forth, left and right, and the circuit board support table is positioned above the circuit board support table. is provided with a circuit board position detection device that detects the position of the index on the upper surface of the double-sided circuit board that is positioned and supported, and the holding member has a fine adjustment device that finely adjusts the front, rear, left, and right positions of the circuit board support table with respect to the holding member. A circuit board inspection device equipped with a device. 2. The circuit board inspection device according to claim 1, wherein a circuit board positioning pin is provided protrudingly on the circuit board support table, and the circuit board is positioned by fitting the pin into a positioning hole provided in the circuit board. . 3. A pair of parallel, opposing elongated guide members are fixed to opposite sides of the supporting frame fixed on the holding member, and a rectangular frame is formed so that the two opposing sides are guided between these guide members. , other elongated guide members were fixed to the other two sides of the rectangular frame not facing the guide member, and a circuit board support table was placed on the guide member so as to be guided by the other guide members. A circuit board inspection device according to claim 1. 4. The circuit board inspection device according to claim 1, wherein the circuit board position detection device is constituted by a microscope provided above the index on the top surface of the circuit board on the circuit board support table. 5. The circuit board support table fine adjustment device includes a micrometer head that moves the circuit board support table, and a micrometer that moves a rectangular frame that supports the circuit board support table in a direction perpendicular to the moving direction of the circuit board support table. A circuit board inspection device according to claim 3, comprising a head. 6. The circuit board inspection apparatus according to claim 1, wherein the upper pin board is mounted on the lower side of the fixed plate so as to be movable back and forth.