JP2006339432A - Board mounting mechanism - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a board mounting mechanism for easily mounting a printed circuit board regardless of the position of a guide hole formed to a connector of the printed circuit board. <P>SOLUTION: The board mounting mechanism is provided with a jig printed circuit board, to which the printed circuit board is attached and a positioning hole to be fitted with a positioning pin and a through-hole are formed, a guide pin block which is mounted to the jig printed circuit board and prevents the printed circuit board from being erroneously inserted, a guide pin vertically fixed to a position apart from the center of the guide pin block, the positioning pin mounted on a face in the guide pin block opposite to the face where the guide pin is fixed, a rotary knob having a shaft that penetrates the through-hole of the jig printed circuit board and whose tip is fixed near the center of the face mounting the positioning pin of the guide block, and an elastic member for energizing so that the guide pin block and the jig printed circuit board are tightly fitted to each other. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a board attachment mechanism in a test jig of a semiconductor tester, and more particularly to a board attachment mechanism that can easily attach a printed board regardless of the positions of guide holes formed in a connector of the printed board.

  A semiconductor tester is configured by mounting a plurality of types of printed circuit boards having different circuit configurations. Moreover, when performing an electrical test of these printed circuit boards, a test jig printed circuit board is used. Therefore, the test jig printed board needs to be a mechanism capable of mounting these various types of printed boards and preventing erroneous insertion. There exists a thing like patent document 1 as a prior art document of the conventional board | substrate attachment mechanism.

Japanese Patent Laid-Open No. 01-198098

  Hereinafter, a conventional substrate mounting mechanism will be described. FIG. 7 is a perspective view of a conventional board mounting mechanism. The board attachment mechanism 1 prevents erroneous insertion of the printed board 20. The jig printed board 2 is attached to the printed board 20.

  The guide pins 3 are attached so as to protrude in the vertical direction with respect to the jig printed board 2 by a guide pin block 3a serving as a base. The guide rail 4 is used when the printed circuit board 20 is mounted. That is, when mounting the printed circuit board 20, the side surface of the printed circuit board 20 is slid along the guide rail 4 and the guide pins 3 are inserted into the guide holes 22 formed in the connector 21.

  Next, an enlarged state diagram of the guide pin 3 will be described with reference to FIG. 8A is a side view, and FIG. 8B is a front view. The guide pin 3 is formed on the jig printed circuit board 2 by a guide pin block 3a that is a base of the guide pin 3 in a normal state, and is fixed by a fixing screw 5 through a pair of holes.

  However, when a printed circuit board different from the printed circuit board 20 is mounted in the conventional circuit board mounting mechanism, the position of the guide hole 22 is usually different. Therefore, a new screw adapted to the position of the guide hole 22 by removing the fixing screw 5 is used. It was necessary to prepare a guide pin block or replace a set of test jigs.

  The present invention has been made in view of these problems, and a board attachment mechanism that can easily attach a printed board to a jig printed board regardless of the positions of guide holes formed in the connector of the printed board. The purpose is to provide.

In order to achieve such a problem, the invention described in claim 1
In a board mounting mechanism comprising a jig printed board on which a printed board is mounted and a guide pin block that is attached to the jig printed board and prevents erroneous insertion of the printed board,
A guide pin fixed vertically to a position away from the center of the guide pin block;
A positioning pin attached to the opposite surface of the surface to which the guide pin of the guide pin block is fixed;
A positioning hole for fitting the positioning pin is formed, and a jig printed board in which a through hole is formed,
A rotary knob in which a shaft that passes through the through hole of the jig printed board and has a tip fixed near the center of the surface to which the positioning pin of the guide pin block is attached;
An elastic member that urges the guide pin block and the jig printed circuit board to come into close contact with each other.

The invention according to claim 2
A guide pin to be inserted into the guide hole of the printed circuit board;
A guide pin block for vertically fixing the guide pin at a position away from the center;
A positioning pin attached to an opposite surface of the guide pin block to the surface to which the guide pin is fixed;
A positioning hole for fitting the positioning pin is formed, and a jig printed board in which a through hole is formed,
A rotary knob in which a shaft that passes through the through hole of the jig printed board and has a tip fixed near the center of the surface to which the positioning pin of the guide pin block is attached;
An elastic member that urges the guide pin block and the jig printed circuit board to come into close contact with each other.

The invention according to claim 3 is the substrate mounting mechanism according to claim 1 or 2,
The positioning pins are a pair of positioning pins attached so as to face the longitudinal direction of the guide pin block 12, and the positioning holes are a pair of positioning holes for fitting the positioning pins.

According to a fourth aspect of the present invention, in the substrate mounting mechanism according to any one of the first to third aspects,
A plurality of the positioning pins and the positioning holes are provided.

According to a fifth aspect of the present invention, in the substrate mounting mechanism according to any one of the first to fourth aspects,
Pressing the rotary knob in the direction of the jig printed circuit board to remove the positioning pin from the positioning hole;
After rotating the rotating knob in this state, the pressing of the rotating knob is released to fit the positioning pin, and the position of the guide pin fixed to the guide pin block is changed.

The invention according to claim 6 is the substrate mounting mechanism according to any one of claims 1 to 4,
Pressing the rotary knob in the direction of the jig printed circuit board and removing the pair of positioning pins from the pair of positioning holes;
After rotating the rotary knob 180 degrees in this state, the pressing of the rotary knob is released to fit the positioning pin, and the position of the guide pin fixed to the guide pin block is changed.

The invention according to claim 7 is the substrate mounting mechanism according to any one of claims 1 to 5,
The guide pin block is formed with a recess at a position where the tip of the shaft formed on the rotary knob contacts, and the tip of the shaft formed on the rotary knob is inserted into this recess.

The invention according to claim 8 is the substrate mounting mechanism according to any one of claims 1 to 7,
The elastic member is a spring.

The invention according to claim 9 is the substrate mounting mechanism according to claim 8,
The guide pin block is inserted into a shaft formed on the rotary knob, one end abuts the rotary knob, and the other end abuts near the outer periphery of the through hole of the jig printed board. Is urged so as to be in close contact with the jig printed circuit board.

The invention according to claim 10 is the board mounting mechanism according to claim 8, wherein the spring is provided between the vicinity of the center of the surface on which the positioning pin of the guide pin block is mounted and the through hole of the jig printed board. The shaft is formed by a shaft formed on the rotary knob, and the guide pin block is urged so as to be in close contact with the jig printed board.

The invention according to claim 11
A guide pin to be inserted into the guide hole of the printed circuit board;
A guide pin block in which the guide pin is fixed vertically at a position away from the center, and a recess is formed near the center of the surface opposite to the surface to which the guide pin is fixed,
A pair of positioning pins attached so as to face the longitudinal direction of the surface of the guide pin block 12 where the recesses are formed;
A pair of positioning holes for fitting the pair of positioning pins are formed, and the pair of positioning holes engages with the pair of positioning pins to stop the guide pin block, and a recess of the guide pin block; A jig printed circuit board in which a through hole having a common central axis is formed;
A rotary knob formed with a shaft that passes through the through hole of the jig printed circuit board and the tip of which is inserted into the recess of the guide pin block.
The guide pin block is inserted into the shaft formed on the rotary knob, one end contacts the rotary knob, the other end contacts the vicinity of the outer periphery of the through hole of the jig printed board, and the guide pin block is connected to the jig print. And a spring that is biased so as to be in close contact with the substrate.

The present invention has the following effects.
The guide pin block is fixed by using an elastic member that urges the guide pin block and jig printed circuit board to come into close contact with each other during normal use, so that the position of the guide pin can be changed easily. Regardless of this, the printed circuit board can be easily attached, and the test jig can be shared.

  Hereinafter, a substrate mounting mechanism according to the present invention will be described with reference to FIG. FIG. 1 is a perspective view of a substrate mounting mechanism according to the present invention. The board attachment mechanism 10 is for mounting a printed board (not shown). The guide pin 11 is inserted into a guide hole formed in a connector of a printed board (not shown). The guide pin block 12 fixes the guide pin 11 vertically at a position away from the center. The reason why the guide pin is fixed at a position away from the center is to change the position of the guide pin when a rotation operation of the guide pin block 12 described later is executed.

  The recess 12a is formed at the center of the surface opposite to the surface to which the guide pin 11 is fixed. The recess 12a may be a through hole as long as the tip of a shaft 16a formed on the rotary knob 16 described later can be fitted. Further, the recess 12a is not necessarily provided, and the tip of the shaft 16a formed on the rotary knob 16 may be bonded using an adhesive or the like.

  The positioning pins 13a and 13b are attached so as to be opposed to the longitudinal direction of the surface of the guide pin block 12 where the recess 12a is formed. The positioning pins 13a and 13b do not necessarily need to be used as a pair, and only one of them may be formed. However, when only one side is formed, rattling of the shaft 16a formed on the rotary knob 16 and a through hole 14a formed on the jig printed board 14 described later is suppressed, and the guide pin block 12 is normally used. It is necessary to prevent misalignment in the state.

  A through hole 14a having a central axis common to the concave portion 12a is formed at an intermediate point between the positioning holes 15a and 15b of the jig printed board 14. In addition, a pair of positioning holes 15a and 16b are formed on the surface in contact with the guide pin block 12. The guide pin block 12 is locked to the jig printed board 14 by fitting these holes with the positioning pins 13a and 13b. Even when only one of the positioning pins 13a and 13b is provided, both of the positioning holes 15a and 15b are necessary.

  A shaft 16 a is formed in the rotary knob 16, the shaft 16 a passes through the through hole 14 a of the jig printed board 14, and the tip portion is fitted and inserted into the recess 12 a of the guide pin block 12. The spring 17 is fitted into a shaft 16 a formed on the rotary knob 16, and one end contacts the rotary knob 16 and the other end contacts the vicinity of the outer periphery of the through hole of the jig printed board 14. The guide pin block 12 is urged so as to be in close contact with the jig printed board 14 by the action of the spring 17.

  A spring that contracts in a normal state may be inserted between the recess 12 a and the through hole 14 a instead of the spring 17. In this case, it is necessary to design the positioning pins 13a and 13b to be long enough to insert the spring, or to provide a recess for inserting the spring in the vicinity of the outer periphery of at least one of the recess 12a and the through hole 14a.

  Next, the rotation operation of the guide pin block 12 of FIG. 1 will be described with reference to FIGS. Here, FIGS. 2 and 3 are explanatory views of the state of the guide pin block 12 and the jig printed board 14.

  FIG. 4 is a state transition diagram illustrating the rotation state of the guide pin block 12. FIG. 4A is a normal state, and the position of the guide pin 11 is on the left side of the figure. FIG. 4B shows a rotating state. FIG. 4C shows a state after rotation, and the position of the guide pin is on the right side of the figure.

  In the rotation operation, the rotation knob 16 is pressed in the direction of the jig printed board 14 as shown in FIG. 3 from the normal state of FIG. 4A, and the positioning pins 13a and 13b are removed from the positioning holes 15a and 15b. Then, the rotary knob 16 is rotated as shown in FIG. 4B and rotated 180 degrees, and then the pressure of the rotary knob is released to change the position of the guide pin 11 as shown in FIG. 4C.

  By changing the position of the guide pin 11 in this way, even in the printed circuit board 30 in which the guide hole 32 is formed outside the connector 31 as shown in FIG. 5, the guide hole 42 is provided inside the connector 41 as shown in FIG. Even the printed circuit board 40 on which is formed can be mounted on the jig printed circuit board.

It is a perspective view of the board | substrate attachment mechanism by this invention. It is a state explanatory view of the guide pin block 12 and the jig printed board 14. It is a state explanatory view of the guide pin block 12 and the jig printed board 14. FIG. 6 is a state transition diagram illustrating a rotation state of the guide pin block 12. FIG. 6 is an explanatory diagram of an attached state of the printed circuit board 30 in which a guide hole 32 is formed outside the connector 31. FIG. 5 is an explanatory diagram of a mounting state of the printed circuit board 40 in which a guide hole 42 is formed inside the connector 41. It is a perspective view of the board | substrate attachment mechanism by a prior art. FIG. 6 is an enlarged state diagram of the guide pin 3.

Explanation of symbols

11 Guide Pin 12 Guide Pin Block 13a, 13b Positioning Pin 14 Jig Print Board 15a, 15b Positioning Hole 16 Rotating Knob 16a Shaft 17 Spring

Claims (11)

In a board mounting mechanism comprising a jig printed board on which a printed board is mounted and a guide pin block that is attached to the jig printed board and prevents erroneous insertion of the printed board,
A guide pin fixed vertically to a position away from the center of the guide pin block;
A positioning pin attached to the opposite surface of the surface to which the guide pin of the guide pin block is fixed;
A positioning hole for fitting the positioning pin is formed, and a jig printed board in which a through hole is formed,
A rotary knob in which a shaft that passes through the through hole of the jig printed board and has a tip fixed near the center of the surface to which the positioning pin of the guide pin block is attached;
A board mounting mechanism comprising: an elastic member that urges the guide pin block and the jig printed circuit board to come into close contact with each other. A guide pin to be inserted into the guide hole of the printed circuit board;
A guide pin block for vertically fixing the guide pin at a position away from the center;
A positioning pin attached to an opposite surface of the guide pin block to the surface to which the guide pin is fixed;
A positioning hole for fitting the positioning pin is formed, and a jig printed board in which a through hole is formed,
A rotary knob in which a shaft that passes through the through hole of the jig printed board and has a tip fixed near the center of the surface to which the positioning pin of the guide pin block is attached;
A board mounting mechanism comprising: an elastic member that urges the guide pin block and the jig printed circuit board to come into close contact with each other.
  The positioning pins are a pair of positioning pins attached so as to oppose the longitudinal direction of the guide pin block 12, and the positioning holes are a pair of positioning holes for fitting the positioning pins. The board mounting mechanism according to claim 1 or 2.   The board mounting mechanism according to claim 1, comprising a plurality of the positioning pins and the positioning holes. Pressing the rotary knob in the direction of the jig printed circuit board to remove the positioning pin from the positioning hole;
After rotating the rotary knob in this state, the pressing of the rotary knob is released to fit the positioning pin, and the position of the guide pin fixed to the guide pin block is changed. Item 5. A substrate mounting mechanism according to any one of Items 1 to 4. Pressing the rotary knob in the direction of the jig printed circuit board and removing the pair of positioning pins from the pair of positioning holes;
After rotating the rotary knob 180 degrees in this state, the pressing of the rotary knob is released, the positioning pin is fitted, and the position of the guide pin fixed to the guide pin block is changed. The board mounting mechanism according to any one of claims 1 to 4.   The guide pin block has a recess formed at a position where the tip of the shaft formed on the rotary knob contacts, and the tip of the shaft formed on the rotary knob is fitted in the recess. Item 6. The board mounting mechanism according to any one of Items 1 to 5.   8. The board mounting mechanism according to claim 1, wherein the elastic member is a spring.   The guide pin block is inserted into a shaft formed on the rotary knob, one end abuts the rotary knob, and the other end abuts near the outer periphery of the through hole of the jig printed board. The board mounting mechanism according to claim 8, wherein the board is biased so as to be in close contact with the jig printed board.   The spring is provided between the center of the surface on which the positioning pin of the guide pin block is attached and the through hole of the jig printed board, and is fitted through a shaft formed on the rotary knob. The board mounting mechanism according to claim 8, wherein the block is biased so as to be in close contact with the jig printed board. A guide pin to be inserted into the guide hole of the printed circuit board;
A guide pin block in which the guide pin is fixed vertically at a position away from the center, and a recess is formed near the center of the surface opposite to the surface to which the guide pin is fixed,
A pair of positioning pins attached so as to face the longitudinal direction of the surface of the guide pin block 12 where the recesses are formed;
A pair of positioning holes for fitting the pair of positioning pins are formed, and the pair of positioning holes engages with the pair of positioning pins to stop the guide pin block, and a recess of the guide pin block; A jig printed circuit board in which a through hole having a common central axis is formed;
A rotary knob formed with a shaft that passes through the through hole of the jig printed circuit board and the tip of which is inserted into the recess of the guide pin block.
The guide pin block is inserted into the shaft formed on the rotary knob, one end contacts the rotary knob, the other end contacts the vicinity of the outer periphery of the through hole of the jig printed board, and the guide pin block is connected to the jig print. A board mounting mechanism, comprising: a spring that urges the board to be in close contact therewith.

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