JPH08187686A - Moving mechanism - Google Patents

Abstract

PURPOSE: To easily accurately move a moving object by considering a means such as rotatably connecting both upper/lower arms, further arranging a length adjusting mechanism in the one arm, also arranging a stopper of stopping both the upper/lower arms in a toggle position. CONSTITUTION: Both upper/lower arms 2, 5 are rotatably connected by a rotary mechanism 4, also to fix the lower arm 5 rotatably to a base 9 fixed by a fixed rotary mechanism 6, further to fix the upper arm 2 rotatably to a moving object by a fixed mechanism 1. the lower arm 5 is rotated by the fixed rotary mechanism 6, also to rotate the upper arm 2 according to this rotating the lower arm, and the arms are stably stopped by a stopper 7 in a position (toggle position) 13 passing an upper limit 12. Here is used a stroke adjusting nut 3 mounted in the upper arm 2, to arbitrarily adjust a length of the upper arm 2, so as to adjust a lower limit, upper limit 12 or the position (toggle position) 13 passing the upper limit 12 respectively in a desired position.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a moving mechanism for moving a moving object to an arbitrary position by means of an upper arm and a lower arm which are rotatably connected to each other.

[0002]

2. Description of the Related Art Conventionally, when a printed circuit board on which a hybrid IC or the like is mounted is tested, a large number of pins are brought into contact with a predetermined pattern on the printed circuit board to input or output signals. In order to bring this many pins into contact with the pattern at a predetermined position on the printed circuit board, place the board provided with many pins that extend to the spring at the position you want to contact on the printed circuit board facing with a special jig. I was pushing.

[0003]

Conventionally, as described above, when a large number of pins are brought into contact with a predetermined pattern on a printed circuit board to input and output signals, a test is performed.
A large number of pins are provided at predetermined positions on a substrate through springs that extend, and the pins are arranged so as to face the printed circuit board, and the large number of pins are brought into contact with a predetermined pattern of the printed circuit board. For this reason, since a dedicated moving mechanism was created and dealt with every time the printed circuit board under test changed, the measuring jig was not versatile and it was difficult to make adjustments to move it to the position where it was just in contact. There was a problem such as being.

The present invention solves these problems.
The stop position can be set arbitrarily by freely adjusting the lengths of the upper arm, the lower arm, and the arm, and the substrate on which a large number of pins for testing are placed is pressed to the prescribed position of the target such as the hybrid IC substrate at the prescribed pressure. It is intended to be easily adjustable.

[0005]

[Means for Solving the Problems] Means for solving the problems will be described with reference to FIG. In FIG. 1, the fixing mechanism 1 rotatably fixes the upper arm 2 to a moving object (not shown).

The upper arm 2 is rotatably connected to the lower arm 5 by a rotating mechanism 4. The stroke adjusting nut 3 is a specific example of the length adjusting mechanism and adjusts the position of the upper arm 2. The lower limit 11, the upper limit 12, or the position (toggle position) 13 beyond the upper limit is used as a relative position. To adjust to.

The lower arm 5 is rotatably connected to the upper arm 2 by a rotating mechanism 4. The fixed / rotary mechanism 6 is
The lower arm 5 is rotatably fixed to the base 9, and the lower arm 5 is rotated.

The stopper 7 stops the upper arm 2 or the lower arm 5 at a stable position at a position 13 beyond the upper limit. The base 9 is a fixed base.

[0009]

According to the present invention, as shown in FIG. 1, the upper arm 2 and the lower arm 5 are rotatably connected by the rotating mechanism 4, and the lower arm 5 is rotated by the fixed / rotating mechanism 6 on the base 9. Freely fixed and upper arm 2 fixed mechanism 1
It is rotatably fixed to a moving object (not shown) via. In this state, the lower arm 5 is rotated by the fixing / rotating mechanism 6 and the upper arm 2 rotatably connected to the rotating mechanism 4 is rotated accordingly, and the upper arm 2 is stopped at a position (toggle position) 13 beyond the upper limit. Then, the object to be moved (not shown) is stably stopped at the position of the lower limit 11 to the position of the upper limit 12, and further at a position (toggle position) 13 which has slightly returned to the lower limit and has passed the upper limit. At this time, the stroke adjusting nut 3 attached to the upper arm 2 is used to arbitrarily adjust the length of the upper arm 2, and the lower limit 11, the upper limit 12, or the position (toggle position) 13 beyond the upper limit is adjusted to a desired position. I am trying to do it.

Further, a guide mechanism (not shown) for moving a moving object (not shown) in a predetermined direction is provided (described later with reference to FIGS. 3 and 4). In addition, the moving object is a board on which a large number of pins protruding by a spring are arranged, and the above-mentioned length is set so that the pins of the board are pressed against a predetermined position of the printed board to be tested with a predetermined pressure by a spring force. The adjustment mechanism is used to make arbitrary adjustments.

Therefore, the lengths of the upper arm 2, the lower arm 5, and the lower arm 5 can be freely adjusted so that the stop position can be arbitrarily set, and a substrate on which a large number of pins for testing are mounted is a hybrid IC substrate. It has become possible to easily adjust a predetermined pressure to a predetermined position of an object such as.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, the construction and operation of an embodiment of the present invention will be described in detail with reference to FIGS.

FIG. 1 shows a block diagram of an embodiment of the present invention.
1A shows a side view at the lower limit position.
(B) shows a side view at a position (toggle position) beyond the upper limit.

1A and 1B, the fixing mechanism 1 is for fixing to a moving object (not shown) via a rotatable mechanism (for example, a bearing) of the upper arm 2 as shown. is there.

The upper arm 2 is connected to the rotating mechanism 4 via the rotating mechanism 1 and the stroke adjusting nart 3, and here, the length can be adjusted. The stroke adjusting nut 3 is rotated to arbitrarily adjust the length of the upper arm 2.

The rotating mechanism 4 is a mechanism (for example, a bearing) that rotatably fixes the upper arm 2 and the lower arm 5. The lower arm 5 is rotatably fixed to the upper arm 2 via the rotating mechanism 4, fixed to the base 9 via the fixing / rotating mechanism 6, and rotated by a lever (not shown).

The fixing / rotating mechanism 6 rotatably fixes the lower arm 5 to a fixed base 9 and rotates the lower arm 5 in conjunction with the rotation of a lever (not shown).

The stopper 7 stops the upper arm 2 and the lower arm 5 at a position (toggle position) slightly above the upper limit. The lower stopper 8 stops the upper arm 2 and the lower arm 5 at the lower limit position.

The base 9 is a fixed base. The lower limit 11 is
This is the lower limit position of the rotation center of the fixing mechanism 1 attached to the upper arm 2.

The upper limit 12 is the upper limit of the center of rotation of the fixing mechanism 1 attached to the upper arm 2 (the position of the upper end when the upper arm 2 and the lower arm 5 are just linear). The position (toggle position) 13 beyond the upper limit is a stable position where the upper arm 2 and the lower arm 5 have rotated and slightly passed the upper limit, and is a position stopped by the stopper 7.

Next, the operation of the configuration of FIG. 1 will be described in detail according to the order shown in the flowchart of FIG. In FIG. 2, the test module is mounted in S1. This is
Facing a moving object (not shown) fixed to the fixing mechanism 1 of
A test module (printed circuit board to be tested) that carries out various tests by contacting a pin configured to project from the moving object with a spring is mounted (see FIG. 4).

In step S2, the lower arm 5 is rotated until the stopper position (toggle position) which has passed the lower limit and exceeds the upper limit is reached.
This is because the lower limit state of FIG.
The lever of the fixing / rotating mechanism 6 is rotated to a position (toggle position) 13 that has passed the upper limit of the above.

In S3, the stroke contact nut 3 of the upper arm 2 is rotated to adjust the pin contact pressure on the test module. This is a moving object connected to the rotating mechanism 1 by rotating the stroke adjusting nut 3 for adjusting the length of the upper arm 2 in a state where the lower arm 5 of FIG. The spring is attached to the board so that the pin protrudes, and the printed board of the test module is adjusted to come into contact with a predetermined position with a predetermined pin contact pressure.
As a result, the pin could be adjusted so as to surely contact the predetermined position of the test module with a predetermined pressure.

At S4, a test is performed. This is because the pin attached to the substrate of the moving object in S3 is in contact with a predetermined position of the printed circuit board of the test module by the force of the spring, so that a signal can be extracted or a signal can be input from this contacted position. Perform the operation test of the test module.

In S5, the lower arm 5 is rotated in the reverse direction to return to the lower limit position. This changes from the state of FIG. 1B to that of FIG.
In this state, the lower arm 5 is rotated in the reverse direction to return to the lower limit 11. S
6, remove the test module.

As described above, a pin protruding by a spring is attached to a moving object (not shown) attached to the rotating mechanism 1 of FIG. 1, and the pin is brought into contact with a predetermined position of the printed board of the test module with a predetermined contact pressure. After rotating and adjusting the stroke adjusting nut 3 provided on the upper arm 2, it is possible to carry out a test by taking out or inputting a signal from the test module, and it is possible to reliably move to a predetermined position with a simple configuration. We were able to realize a moving mechanism that can move objects and easily adjust them to arbitrary positions.

FIG. 3 is a diagram illustrating a specific example of the present invention. FIG. 3A shows an example of upper and lower movement distances depending on the dimensions of the upper arm 2 and the lower arm 5. Here, in FIG.
At the lower limit position shown in -1):-Length of upper arm 2: 50 mm (length from A to B) -Length of lower arm 5: 50 mm (length from B to C) -Lower arm 5 Rotation angle: 30 °, when this is rotated to the position of the stopper 7 which has just passed the upper limit, as shown in FIG. It has been moved. In this case, according to the experiment, the accuracy of the moving position was easily obtained to be about ± 0.01 mm. The movement distance, the lower limit position, and the upper limit position can be arbitrarily adjusted by rotating the stroke adjusting nut 3 provided on the upper arm 2 in FIG.

FIG. 3B shows a structural example of the stroke adjusting nut 3 provided on the upper arm 2. In this case, the stroke adjusting net 3 has M3 in the upper half as shown in the figure.
The left nut of M3 and the left half of M3 are left nuts, and in accordance with this, the right screw of M3 is rotated and inserted from above.
Then, the left screw of M3 is rotated from below to be inserted. Then, the stroke adjusting nut 3 is rotated to extend or contract the upper arm 2 to adjust the length to an arbitrary length.

FIG. 3C shows the lever position. The lever 10 in the figure is fixed to the shaft of the fixing / rotating mechanism 6 of FIG. 1 and is used to rotate the lower arm 5. Here, the lever is positioned on either the left side or the right side. It also shows that it can be provided.

FIG. 3D shows an example of the guide mechanism. The guide mechanism is such that the moving object fixed rotatably to the point A in FIG. 3A is adapted to move only in the linear direction, and as shown in FIG. The ball slider 14 is attached and is moved along a linear shaft 15 fixed between the table 9 and the test table 16. The coefficient of friction of the ball slider 14 is normally 0.
It is about 002 to 0.003 μ, and it can be said that the movement accuracy is good and there is no stroke resistance at all, and the movement can be performed smoothly.

FIG. 4 is a block diagram showing a specific example of the present invention. Here, 2, 5, 7, 8, 9, 14, 15, 16 are shown in FIG.
Alternatively, the description is omitted because it is the same as the number in FIG. In the structure shown in FIG. 4, the linear shaft 15 and the ball slider 14 enable the moving object to move precisely in the vertical direction. The moving object is the upper arm 2.
Fixed to the fixing mechanism 1 of the upper arm 2 and the rotating mechanism 4
The lower arm 5 fixed by
Here, when the stopper 7 is rotated counterclockwise and stopped at a stable toggle position that has passed the upper limit of the stopper 7, a predetermined upward distance (movement distance described in (a) and (b) of FIG. 3).
Only moves to approach the test stand 16. As a result, by fixing the test board with the pins protruding by the spring onto the moving object, and by mounting the board under test on the opposing test stand 16 portions, the pins of the test board are exactly aligned with the board. A test can be performed by contacting a pattern or the like with a predetermined pressure to extract a signal or input a signal. As a result, a large number (hundreds) of pins with springs should be placed on the test board at prescribed positions, and the test should be performed by accurately and simultaneously contacting hundreds of points on the board under test. Became possible.

[0032]

As described above, according to the present invention,
Since the upper arm 2, the lower arm 5, and the lower arm 5 are freely adjusted in length so that the stop position can be arbitrarily set, the moving object can be easily moved to a predetermined position with high accuracy. Can be made. In particular, a hybrid IC such as a substrate on which a large number (for example, several hundreds) of pins for testing is mounted.
It has become possible to quickly and reliably perform a test by easily adjusting a predetermined pressure of a target object such as a substrate to a predetermined pressure and taking out signals from these many pins or inputting signals.

[Brief description of drawings]

FIG. 1 is a configuration diagram of an embodiment of the present invention.

FIG. 2 is a flowchart explaining the operation of the present invention.

FIG. 3 is a diagram (Part 1) for explaining a specific example of the present invention.

FIG. 4 is a specific example explanatory view (No. 2) of the present invention.

[Explanation of symbols]

 1: Fixed mechanism 2: Upper arm 3: Stroke adjustment nut 4: Rotation mechanism 5: Lower arm 6: Fixed / rotation mechanism 7: Stopper 8: Lower stopper 9: Stand 10: Lever 11: Lower limit 12: Upper limit 13: Upper limit Past position (toggle position) 14: Ball slider 15: Linear shaft 16: Test bench

Claims (3)

[Claims] 1. An upper arm and a lower arm rotatably connected to each other,
And a length adjusting mechanism for adjusting the length of at least one of the arms, a fixing / rotating mechanism for rotatably fixing and rotating one of the upper arm or the lower arm on a base, and the upper arm or the lower arm. A fixing mechanism for rotatably fixing the other of the two to the moving object, and a stopper for rotating the arm by the fixing / rotating mechanism to stop the upper arm and the lower arm at a toggle position slightly past the fully extended state. A moving mechanism comprising: adjusting the length of the arm by the length adjusting mechanism, and optionally adjusting the toggle position and / or the upper limit position where the upper arm and the lower arm extend most. 2. The moving mechanism according to claim 1, further comprising a guide mechanism for moving the moving object in a predetermined direction. 3. The moving object is a board on which a large number of pins protruding by a spring are arranged, and the pins of the board are pressed against a predetermined position of a printed board to be tested by a spring force with a predetermined pressure. The moving mechanism according to claim 1 or 2, wherein the moving mechanism is arbitrarily adjusted by the length adjusting mechanism.