JP3242275B2 - Jig for IC socket - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an IC socket in which an electronic component is pressed and fixed to or released from a contact pin by moving a slider substantially horizontally, and the slider is moved almost horizontally. For jigs.

[0002]

2. Description of the Related Art Japanese Patent Application No. 5-581, filed by the present applicant.
No. 05 discloses an IC socket in which an electronic component such as an IC chip or a package is pressed and fixed to or released from a contact pin by moving a slider in a substantially horizontal direction. The substantially rectangular electronic component has a large number of pads or lead-shaped terminals arranged in parallel along four sides or two opposite sides, and the IC socket has four sides or relative sides of a substantially rectangular socket body. It has a number of contact pins arranged in parallel along two opposite sides. Each of the contact pins has at one end a contact portion that contacts a terminal of an electronic component and at the other end a lead portion that is electrically connected to an external printed wiring board; When the electronic component is mounted on the contact portions of the parallel contact pins, the terminals thereof come into contact with the contact portions of the contact pins. Further, a slider is held between the base piece and the arm piece of the contact pins arranged in parallel, and each slider presses the upper surface of the electronic component above the contact portion of the contact pins arranged in parallel. It can be moved substantially horizontally between a pressing and fixing position for fixing the component to the contact pin and a release position for opening the contact portion of the contact pin to release the electronic component from the contact pin. Therefore, when the slider is in the release position, the electronic component can be loaded onto the contact portion of the contact pin from above the IC socket, or can be taken out from the contact portion of the contact pin. Also, when the slider is moved from the release position to the pressing and fixing position, the slider individually presses the upper surface of the electronic component placed on the contact portion of the contact pin. Can be brought into contact with a required contact pressure.

Further, Japanese Patent Application No. Hei 5-58105 discloses an IC mounting jig for acting on a slider of an IC socket to move the slider substantially horizontally from a release position to a pressing and fixing position, and pressing the slider. An IC release jig for moving substantially horizontally from a fixed position to a release position is disclosed. These IC mounting jig and IC release jig
It has a plurality of legs protruding below the jig body,
In the IC mounting jig, an inclined surface is formed on the inner surface side of each leg, and in the IC release jig, an inclined surface is formed on the outer surface side of each leg. Therefore, when the inclined surface of each leg of the IC mounting jig or the IC release jig is brought into contact with the slider and the jig body is pressed down, the slider is pressed substantially horizontally by the inclined surface of the leg,
It moves from the pressing and fixing position to the releasing position or from the releasing position to the pressing and fixing position.

[0004]

As described above, the IC mounting jig and the IC releasing jig have a configuration in which the slider is horizontally moved in accordance with the amount of depression of the inclined surface portion of the leg piece abutting on the slider. Therefore, a vertical component force acts downward on the slider together with the horizontal component force. Therefore, if the inclination angle of the inclined surface of the leg with respect to the horizontal is set to be large, the vertical component acting on the slider can be reduced, but the inclined surface portion of the leg required for securing the horizontal movement amount of the slider can be reduced. Is increased. However, in the case of a thin IC socket, it is difficult to secure a vertical space in the vicinity of the slider for the amount of pressing movement of the inclined surface portion of the leg piece.
On the other hand, if the inclination angle of the inclined surface of the leg with respect to the horizontal is set small, the amount of horizontal movement of the slider with respect to the amount of pressing movement of the inclined surface of the leg can be increased, but in this case, the downward vertical component applied to the slider And the movement resistance of the slider increases, the pressing force of the jig required to move the slider horizontally increases, and the operability of the jig deteriorates.

Further, as described above, in the jig having the above structure, a vertical component force, that is, a pressing force is applied to the slider downward, so that the slider, the contact pins for holding the slider, the printed wiring board, the electronic components, etc. Excessive force is applied to the wire, causing deformation and damage. In addition, the slider, the sliding portion between the slider and the contact pin, and the like are easily worn away at an early stage, and the durability of the IC socket is reduced.

Further, in the above-described conventional jig configuration, an IC
Since it is necessary to use an IC mounting jig for mounting and an IC releasing jig for releasing IC properly, the efficiency of attaching and detaching electronic components is reduced.

Therefore, a first object of the present invention is to provide an IC
An object of the present invention is to provide a jig for an IC socket capable of moving a slider in a substantially horizontal direction by applying substantially only a substantially horizontal pressing force to a slider of the socket.

A second object of the present invention is to provide an electronic component attaching / detaching device capable of selectively moving a slider from a release position to a pressing and fixing position and moving the slider from a pressing and fixing position to a release position. To provide a jig for an IC socket.

[0009]

According to a first aspect of the present invention, an electronic component is pressed or fixed to a contact pin by moving a slider in a substantially horizontal direction. A jig for an IC socket which is used for an IC socket to move the slider substantially horizontally, comprising: a base plate disposed above the IC socket; and a swingably or horizontally movable supported by the base plate; A spring provided between the base plate and the operation plate, at least one operation plate having a claw that can be brought into contact with the slider at a lower end, and a spring for urging the claw at the lower end of the operation plate substantially in the same direction as the movement direction of the slider; Means, a gripper disposed above the base plate and movably connected to the base plate, and a gripper for the base plate A cam engaging means for moving the claw of the operating plate in a direction substantially the same as the moving direction of the slider by pressing the spring against the spring force of the spring means, wherein the cam engaging means is one of the operating plates or one of the grippers. A cam provided in the
A cam actuator provided on the other of the operating plates or grippers and engaging with the cam.
Provide a jig for a C socket.

[0010] The invention according to claim 2 is the invention according to claim 1.
A jig for a C socket, wherein a cam of a cam engaging means acts on a cam operator when a gripper is pressed to move a claw of an operation plate inward of an IC socket; And a second inclined cam surface which acts on the cam operating member to move the claw of the operating plate toward the outside of the IC socket when the button is pressed, and the base plate is provided with a spring force of spring means for the operating plate. A switching means for switching the biasing direction is provided, and by switching the biasing direction of the spring force of the spring means, the cam operator is selectively brought into contact with the first inclined cam surface or the second inclined cam surface. Features.

According to a third aspect of the present invention, there is provided the jig for an IC socket according to the first or second aspect, wherein the two operating plates are respectively supported on at least two opposing side portions of the substantially rectangular base plate. The cams provided on one of the operation plates or the grippers have different shapes so that a time difference occurs in the movement of the claw of each operation plate into the IC socket due to the pressing movement of the gripper. It is characterized by.

According to a fourth aspect of the present invention, there is provided the method according to the first aspect.
The jig for a C socket is provided with a suction pad for sucking an upper surface of an electronic component below a base plate.

According to a fifth aspect of the present invention, there is provided the method according to the first aspect.
In the jig for C socket, the gripper is an upper plate,
An intermediate plate and a lower plate, wherein the lower plate is vertically movably connected to the base plate, and the lower plate is provided with a cam or cam operating member of a cam engaging means, and is provided between the upper plate and the intermediate plate of the gripper The plate and the lower plate are connected to each other so as to be relatively displaceable in the same direction as the moving direction of the operation plate.

[0014]

In the jig for an IC socket according to the first aspect of the present invention, when the gripper is depressed, the claw at the lower end of the operation plate supported by the base plate so as to be able to swing or move horizontally resists the spring force of the spring means. As a result, the slider can be moved substantially in the same direction as the moving direction of the slider, so that the slider at the lower end of the operating plate exerts substantially only a substantially horizontal pressing force on the slider of the IC socket to move the slider substantially horizontally. Can be moved in any direction. Therefore, I
It is possible to cope with the reduction in the thickness of the C socket, and it is possible to prevent deformation, damage, and the like of the slider, the contact pins holding the slider, or the printed wiring board or electronic component on which the IC socket is mounted. Further, wear of the slider and the sliding portion between the slider and the contact pin can be minimized, so that the durability of the IC socket can be enhanced.

In the jig for an IC socket according to the second aspect, the biasing direction of the spring force of the spring means is switched by the switching means provided on the base plate, so that the cam operator is set to the first inclined cam of the cam. Surface or the second inclined cam surface. Therefore, when the gripper is pressed down, the first inclined cam surface or the second inclined cam surface of the cam can be selectively acted on the outer portion or the inner portion of the cam operating member. Can be switched to the inside or outside of the IC socket, whereby the movement direction of the slider can be switched to the inside or outside of the IC socket. Therefore, the jig for the IC socket can be used for both mounting and removing the electronic component from the IC socket.

In the jig for an IC socket according to the third aspect of the present invention, a time difference can be caused in the movement of the claw of each operation plate into the inside of the IC socket due to the pressing movement of the gripper. A so-called wiping action can be effectively produced at the electrical contact portion with the pin. Therefore, the reliability of conduction between the electronic component and the contact pin can be improved.

In the jig for an IC socket according to the fourth aspect of the present invention, since the suction pad for sucking the upper surface of the electronic component is provided below the base plate, the electronic component is attached to the IC socket using the jig for the IC socket. The process of loading or removing the electronic component from the contact pin and the process of pressing and fixing the electronic component on the contact pin with the slider or releasing the electronic component can be continuously and efficiently performed.

In the jig for an IC socket according to the fifth aspect, the upper plate, the intermediate plate, and the lower plate of the gripper are connected to each other so as to be relatively displaceable in the same direction as the moving direction of the operating plate. When the upper plate is positioned above the IC socket with a manipulator or the like, even if the position of the upper plate is slightly shifted with respect to the IC socket, the intermediate plate and / or
Alternatively, since the lower plate can be displaced with respect to the upper plate to absorb the displacement, the lower plate, the base plate, and the operating plate can be correctly aligned with the IC socket. Therefore, each slider can be moved substantially horizontally without imposing an excessive load on the socket body of the IC socket.

[0019]

Embodiments of the present invention will be described below with reference to the drawings.

Referring first to FIGS. 13 to 15, these figures show an IC in which four sliders arranged in a rectangular shape are moved in a substantially horizontal direction to press or fix an electronic component to or from a contact pin. 9 shows an example of a socket. Referring to these drawings, an electronic component 1 has a substantially rectangular substrate 2, and a large number of pad-shaped terminals 3 are arranged on the bottom surface of the substrate 2 in parallel along each side of the substrate 2. ing.

As shown in FIGS. 13 and 15, the IC socket 10 includes a socket body 11 having a rectangular frame shape, a large number of contact pins 12, and a slider 13. They are arranged and fixed on the sides in parallel with each other. As shown in FIG. 15, each contact pin 12 has a base piece 12a and an arm piece 12 which extends upward from the base piece 12a.
b, one end of the base piece 12a is provided with a contact portion 12c for contacting the terminal 3 of the electronic component 1, and the base piece 12a
A lead portion 12d connected to a conductor pattern (not shown) on the external printed wiring board 4 by, for example, soldering or the like is formed at the other end. As can be seen from FIGS. 13 and 15, the socket piece 11 is attached to the base piece 12a.
A fitting piece 12e that is press-fitted into an engaging groove 11a formed in the socket body 11 is further formed on the upper surface of each side of the socket body 11.
a, a large number of ribs 11b are provided to protrude to keep the interval between the contact pins 12 constant.

Referring to FIG. 14 and FIG. 15, the slider 13 arranged along each side of the socket body 11
It is sandwiched between the base piece 12a and the arm piece 12b of the contact pins 12 arranged in parallel, and can be moved substantially horizontally toward the inside and outside of the socket body 11. I have. Ribs 13a and 13b are provided on the upper and lower surfaces of the slider 13, respectively.
The ribs 13a and 13b are fitted between the arm pieces 12b of the contact pins 12 and between the base pieces 12a, respectively, so that the intervals between the contact pins 12 are kept constant, and the displacement and deformation of the contact pins 12 are prevented. It has become.

As shown in FIG. 15C, the slider 13
At one end in the width direction, an upper surface contact portion 13c that contacts the upper surface of the substrate 2 of the electronic component 1 mounted on the contact portion 12c of the contact pin 12, and a side contact portion 1 that contacts the side surface of the substrate 2
3d is formed. Further, as shown in FIG. 14, pins 13e projecting from both ends of the row of the contact pins 12 project from both ends in the longitudinal direction of the slider 13, respectively, and the socket body 11 of the socket body 11 corresponds to the position of the pins 13e. A concave portion 11c is formed on the upper surface of each side.

FIG. 15A shows a state in which the slider 13 is at the release position.
2 is open above the contact portion 12c, and
Can be loaded or unloaded. FIG. 15B shows a state in which the electronic component 1 is mounted on the contact portion 12 c of the contact pin 12, and the terminal 3 on the bottom surface of the electronic component 1 is in contact with the contact portion 12 c of the contact pin 12. .

As shown in FIG. 13, engaging pieces 11d are provided at four corners of the socket body 11 for roughly positioning the mounted electronic component 1.
The engaging piece 11d engages with a corner of the substrate 2 of the electronic component 1, but the engaging piece 11d is mounted on the contact portion 12c of the contact pin 12 in order to enable a wiping operation described later. The board 2 of the component 11d has four engagement pieces 11d.
The position, dimensions, and the like are set so that they can move slightly inside the space.

FIG. 15B shows a state in which the slider 13 is shown in FIG.
5 shows a state in which the slider 13 has been moved substantially horizontally toward the inside of the socket body 11 from the release position, but the upper surface contact portion 13c of the slider 13 has not yet reached the upper surface of the substrate 2 of the electronic component 1. FIG. 15C shows a state in which the slider 13 has moved to the pressing and fixing position. In this state, the upper surface contact portion 13c of the slider 13 is in contact with the upper surface of the substrate 2 of the electronic component 1, and The side contact portion 13 d of the slider 13 is in contact with the side surface of the substrate 2.

As can be seen from FIGS. 15 (a) to 15 (c),
When the slider 13 moves from the release position to the pressing and fixing position, the arm piece 12b of the contact pin 12 is elastically displaced upward. Therefore, the slider 13 is moved by the spring force generated on the arm piece 12b to the electronic component at the upper surface contact portion 12c. The upper surface of one substrate 2 is pressed. Then, due to the pressing force, the terminal 3 of the electronic component 1 is connected to the contact portion 12 c of the contact pin 12.
At the required contact pressure.

As can be seen from FIGS. 15B and 15C,
An uneven cam surface 12f for controlling the vertical movement of the slider 13 is formed on the upper surface of the arm piece 12a of the contact pin 12. Therefore, when the slider 13 moves from the release position to the pressing and fixing position along the cam surface 12f, the slider 13
After pressing the upper surface of the substrate 2 of the electronic component 1 with c, the side surface contact portion 13d presses the side surface of the substrate 2. Therefore, when the substrate 2 of the electronic component 1 is displaced by being pressed against the side surface, the terminals 3 of the electronic component 1 and the contact portions 12c of the contact pins 12 are rubbed under a required contact pressure, and the wiping action is performed. Occurs.

As described above, the IC socket 10 closes the slider 13 from the release position to the pressing and fixing position in a substantially horizontal direction, thereby connecting the electronic component 1 to the contact pin 1.
2 can be pressed and fixed, and the slider 13
The electronic component 1 can be released from the contact portion 12c of the contact pin 12 by removing the electronic component 1 from the pressing and fixing position to the release position in a substantially horizontal direction, and the electronic component 1 can be removed.

The jig for an IC socket according to the present invention is for moving the slider 13 of the IC socket 10 substantially horizontally to press and fix or release the electronic component 1.

FIGS. 1 to 6 show a first embodiment of an IC socket jig according to the present invention. FIG.
FIG. 2 is an exploded perspective view of the C socket jig, and FIG. 2 shows a state where the IC socket jig is assembled, and a state before a claw at a lower end of an operation plate of the IC socket jig opens the slider. FIG. FIG. 3 shows an IC similar to FIG.
FIG. 2 is a perspective view of the socket jig, showing a state where a claw at a lower end of an operation plate of the IC socket jig has opened the slider. FIG. 4 is a perspective view in which the lower surface of the switching plate incorporated in the jig for the IC socket is directed upward, and the biasing direction of the claw at the lower end of the operating plate by the spring member is set to the outward or open direction, or to the inward or open direction. This is for switching in the closing direction. FIG. 5 is an explanatory view of a cam groove of the switching plate. 6 (a), 6 (b) and 6 (c) are longitudinal sectional views showing the operating state of the jig for IC socket shown in FIGS. 1 and 2, respectively.

Referring first to FIGS. 1, 2, and 6 (a), the jig 20 for the IC socket has a substantially rectangular base plate 21 disposed on the upper part of the IC socket 10.
The base plate 21 includes an upper plate piece 22 and a lower plate piece 23, and the upper and lower plate pieces 22, 23 are fastened and fixed with screws 24. A center pin 25 projecting upward is fixed at the center of the base plate 21, and a guide pin 26 projecting downward is fixed to each corner of the base plate 21 by being sandwiched between upper and lower plate pieces 22, 23, respectively.

On four sides of the base plate 21, operation plates 27 are swingably supported via support pins 27b projecting from both sides of a central portion of the operation plate 27 in the vertical direction. At the lower end of the plate 27, there are formed two claws 27a capable of contacting the inside or outside of the pins 13e at both ends of the slider 13 of the IC socket 10 described above. More specifically, concave grooves 22a and 23a are formed on the side surfaces of the upper and lower plate pieces 22 and 23 of the base plate 21 to receive the central portion of the operation plate 27 in the vertical direction. The lower plate piece 23 has an upper surface and a concave groove 23 corresponding to the support pin 27b.
A pin support groove 23b is formed on both inner side surfaces of a. Therefore, after the operation plate 27 is engaged with the concave groove 23a of the lower plate piece 23 and the support pin 27b is engaged with the pin support groove 23b of the lower plate piece 23, the upper and lower plate pieces 22, 23 are overlapped and screwed. By doing
Each operation plate 27 is swingably held with respect to the base plate 21. Further, the swing of each operation plate 27 causes the claw 27a at the lower end of each operation plate 27 to move substantially horizontally.

On the upper surface of the upper plate piece 22 of the base plate 21, there are formed four guide grooves 22b extending radially from the center toward the concave grooves 22a on each side, and slide in the respective guide grooves 22b. A piece 28 is slidably fitted. A loop-shaped portion of a substantially Ω-shaped leaf spring 29 is disposed on each sliding piece 28, and a substantially rectangular cover plate 30 disposed on the loop-shaped portion of the leaf spring 29 is attached to the center pin 25. It fits and engages with a step formed on the upper surface of the upper plate piece 22. Further, on the cover plate 30, a switching plate 31 rotatably fitted to the center pin 25 is disposed.

Both ends 29b of each leaf spring 29 are
Are rotatably inserted into locking holes 27d opened on both inner side surfaces of the opening 27c formed at the bottom. The locking hole 27d is located above the support pin 27b of the operation plate 27.
Each sliding piece 28 has a pin 28a protruding upward, and each pin 28a penetrates a pin engaging hole formed in a protruding piece 29a protruding inward from the center of the loop portion of the leaf spring 29. And project above it. Each side of the cover plate 30 has a slit 30a for guiding the pin 28a.
The upper end of the pin 28a protruding above the cover plate 30 through the slit 30a is engaged with a cam groove 32 (see FIG. 4) formed on the lower surface of the switching plate 31.

As can be seen from FIGS. 4 and 5, the cam groove 32 of the switching plate 31 extends so that the distance from the center of rotation of the switching plate 31 increases from one end 32a to the other end 32b. The pin 28a of the sliding piece 28 is
Is located at the center of the cam groove 32 when in the neutral position. When the switching plate 31 is rotated around the center pin 25, the pin 28 a moves the sliding piece 28 along the longitudinal direction of the guide groove 22 b of the upper plate 22 while the cam groove 32
Move in.

The pin 28a is positioned at one end 3 from the center of the cam groove 32.
2a, the leaf spring 29 urges the operation plate 27 inward at the position of the locking hole 27b above the support pin 27b, and the pin 28a moves from the center of the cam groove 32 to the other end 32.
b, the leaf spring 29 urges the operation plate 27 outward at the position of the locking hole 27d above the support pin 27b. That is, the claw 27a at the lower end of the operation plate 27 is
When the pin 8a moves from the center of the cam groove 32 to one end 32a, it is urged outward, that is, in the opening direction. When the pin 28a moves from the center of the cam groove 32 to the other end 32b, the pin 28a moves inward, that is, closes. Biased in the direction.

One end 32a of the cam groove 32 of the plate 21 is bent in a direction to increase the distance from the rotation center of the switching plate 31, and the other end 32b of the cam groove 32 is connected to the switching plate 31.
Are bent in a direction in which the distance from the center of rotation of the.
Therefore, when the switching plate 31 is rotated in one direction (the direction of arrow R in FIGS. 4 and 5) to move the pin 28a from the center of the cam groove 32 to one end 32a, the pin 28a The force can be stably locked to one end 32a of the cam groove 32. When the pin 28a is locked to one end 32a of the cam groove 32, the leaf spring 29
By rotating the switching plate 31 in the other direction (the direction of arrow L in FIGS. 4 and 5) against the spring force of
From the one end 32a of the cam groove 32. Similarly, when the switching plate 31 is rotated in the other direction (the direction of the arrow L) to move the pin 28 a from the center of the cam groove 32 to the other end 32 b, the pin 28 a acts on the spring force of the leaf spring 29. Thus, it can be stably locked to the other end 32b of the cam groove 32. Then, the pin 28a is connected to the other end 32 of the cam groove 32.
b, the pin 28a is disengaged from the other end 32b of the cam groove 32 by rotating the switching plate 31 in one direction (the direction of arrow R) against the spring force of the leaf spring 29. Can be done. Thus, the switching plate 31 is
First pin 28a for locking pin 28a to one end 32a of cam groove 32
The position can be switched between a position and a second position where the pin 28a is locked to the other end 32b of the cam groove 32, and the rotation of the switching plate 31 (the first position or the second position) causes the leaf spring 29 to operate. The urging direction of the claw 27a at the lower end of the plate 27 can be switched between the opening direction and the closing direction.

Referring again to FIGS. 1 and 2, the switching plate 31 has two limit pins 33 projecting upward.
Is inserted from below. Further, in the upper part of the switching plate 31, the center pin 25 is inserted through a coil spring 34 and slidably inserted into a gripper 35 disposed on the coil spring 34. The gripper 35 is prevented from being pulled upward by a washer 37 attached to the upper end of the center pin 25 with a screw 36. Also,
The coil spring 34 is located between the switching plate 31 and the gripper 35 and always generates a force for pushing the gripper 35 upward.

At the four corners of the lower surface of the gripper 35, cam blocks 38 projecting downward are provided with screws 4 respectively.
0, and is positioned with respect to the gripper 35 by the knock pin 41. An interval capable of receiving the upper end of the operation plate 27 is provided between two adjacent cam blocks 38. A substantially inverted wedge-shaped cam groove 39 which opens at the lower end of the cam block 38 is formed on the opposing side surfaces of two adjacent cam blocks 38. The cam groove 39 has two inner surfaces extending at an acute angle to each other, and both inner surfaces constitute an inner inclined cam surface 39a and an outer inclined cam surface 39b, respectively. The cam blocks 3 are provided on both sides of the upper end of the operation plate 27, respectively.
8 and a guide pin 27 as a cam operator facing the cam groove 39
e is rotatably projected. The operating plate 27 is urged in the opening direction or the closing direction by the leaf spring 29 depending on the rotation position (first position or second position) of the switching plate 31. Is the cam groove 39
Abuts on one of the inner inclined cam surface 39a and the outer inclined cam surface 39b.

FIGS. 2 and 6 (a) show a state before the operation plate 27 opens. At this time, the leaf spring 29 urges the operation plate 27 in the closing direction. When the gripper 35 is pressed against the base plate 21 in this state, the guide pin 27e moves along the outer inclined cam surface 39b, and accordingly, when the gripper 35 is pressed, the operation plate 27 is supported by the support pin 27b as a fulcrum in FIG. Opening operation starts from the closed position of ()). FIG. 6B shows a state before the operation plate 27 performs the closing operation. At this time, the leaf spring 29 urges the operation plate 27 in the closing direction. In this state, the base plate 21
When the gripper 35 is depressed, the guide pin 27e moves along the inner inclined cam surface 39a, and accordingly, when the gripper 35 is depressed, the operation plate 27 moves from the open position in FIG. Move in the closing direction. FIG. 2 and FIG. 6C show a state after the closing operation or after the opening operation.

As can be seen from FIG. 1, the gripper 35 is provided with adjusting screws 42 at two places. When the gripper 36 is pressed down with respect to the base plate 21, one of the two limit pins 33 abuts on the adjustment screw 42 depending on the rotation position (the first position or the second position) of the switching plate 31, so that the gripper 35 is moved. The pressing stroke is regulated to be constant. By adjusting the screwing amount of the adjustment screw 42, the closing operation stroke and the opening operation stroke of the operation plate 27 with respect to the pressing stroke of the gripper 35 can be individually adjusted as necessary.

As shown in FIGS. 1, 2, 3 and 6 (a), four guide pins 2 extending downward from the base plate 21 are provided.
The positioning projections 26a are provided on the lower end surfaces of the projections 6 respectively. By inserting these four protrusions 26a into positioning holes 11e formed on the four corners of the socket body 11 shown in FIG. 13, the IC socket jig 20 can be positioned with respect to the IC socket 10. it can. Further, the base plate 21 is positioned at a predetermined height position by the lower end surface of the guide pin 26 abutting on the upper surface of the socket body 11. When the projection 26a is inserted into the positioning hole 11e, the two claws 27a at the lower end of the operation plate 27
1 and the pins 13 at both ends of the slider 13 of the IC socket 10 according to the position of the operation plate 27.
located inside or outside of e.

When the gripper 35 is depressed, the guide pin 27e of the operation plate 27 moves along the inner inclined cam surface 39a or the outer inclined cam surface 39b of the cam groove 39 of the cam block 38 as described above. Since the operation plate 27 performs the closing operation or the opening operation, the pins 13e at both ends of the slider 13 of the IC socket 10 are pressed substantially horizontally by the claw 27a at the lower end of the operation plate 27 to move the slider 13 to the inner side of the socket body 11. Or it can be moved outward.

As described above, in the jig 20 for an IC socket having the above-described configuration, the slider 13 of the IC socket 10 is moved in the same direction by moving the claw 27a at the lower end of the operation plate 27 substantially horizontally. So you can
There is no need to secure a space below the pins 13e at both ends of the slider 13 for pressing the claws 27a. Therefore, even if the IC socket 10 is thin, the slider 1
3 can be reliably opened and closed almost horizontally. Further, in the jig 20 of the present embodiment, a pressing force is applied to the slider 13 only in a substantially horizontal direction, and a downward pressing force is not applied. Therefore, the slider 13 or the contact pin 12 holding the slider 13 or There is no fear that the printed wiring board 4, the electronic component 1, and the like are deformed or damaged by the pressing force. In addition, since a pressing force that causes wear is not applied to the slider 13, wear of the slider 13 and a sliding portion between the slider 13 and the contact pin 12 can be minimized, and the durability of the IC socket can be reduced. Can be enhanced.

FIG. 7 shows the cam block 38 of the first embodiment.
This shows a second embodiment of the present invention in which the cam groove 39 formed in the second embodiment is modified. In this embodiment, when two opposing sliders 13 are closed, two sliders 1 are used.
The wiping action is effectively generated between the terminal 3 of the electronic component 1 and the contact portion 12c of the contact pin 12 (see FIG. 15) by giving a time difference to the closing operation of the electronic component 1.

More specifically, FIG. 7A shows a state before the operation plate 27 closes the slider 13 from the release position, and the claw 27a at the lower end of the operation plate 27 is engaged with the pin 13e of the slider 13. It is located outside. FIG. 7B shows a state in which the operating plate 27 is closing the slider 13, and FIG. 7C shows a state in which the closing operation of the slider 13 by the operating plate 27 is completed. ing. As can be seen from FIG. 7A, the cam grooves 39 of the two cam blocks 38 facing each other, particularly the inner inclined cam surface 3
9a is different. That is, the inner inclined cam surface 39a of the cam groove 39 includes a lower portion and an upper portion,
The lower portions of the two inner inclined cam surfaces 39a are each inclined below the cam block 38 so as to intersect with the center axis 43 of the jig.
The inclination angle of the lower part is the inner inclined cam surface 39a on the left side in the figure.
It is set to be larger than the inclination angle of the lower part of. The upper portion of the inner inclined cam surface 39a on the left side in the figure extends below the cam block 38 at a smaller inclination angle than the lower portion thereof so as to intersect with the central axis 43,
The upper part of the right inner inclined cam surface 39a in the figure extends substantially parallel to the upper part of the left inner inclined cam surface 39a in the figure.

Therefore, in the embodiment shown in FIG. 7, when the closing operation is started from the position shown in FIG. 7 (a), the closing operation of the right operation plate 27 in the figure is faster than the left operation plate 27. Therefore, after the upper surface contact portions 13c (see FIG. 15) of the two opposing sliders 13 come into contact with the upper surface of the substrate 2 of the electronic component 1, one of the sliders 13 is pressed by the right operating plate 27 in the drawing. The side contact portion 13d of the slider 13 is
3 contacts the side surface of the substrate 2 of the electronic component 1 earlier than the side contact portion 13d. Therefore, the operation plate 27 is moved to the position shown in FIG.
During the closing operation to the position shown in FIG. 3, the substrate 2 of the electronic component 1 is sandwiched between the two sliders 13 facing each other and the contact portion 12c of each lower contact pin 12, while the substrate 2 is 2 is pressed to move to the left in FIG. Then, after the side contact portion 13d of the other slider 13 contacts the side surface of the substrate 2 at the position shown in FIG. 7B, the guide pins 27e of the two operation plates 27 are respectively located inside the two cam blocks 38. The electronic component 1 is pushed back to the right in the drawing while the operating plate 27 moves from the position of FIG. 7B to the position of FIG. 7C because the moving plate 27 moves along the upper portion of the inclined cam surface 39a. Thus, the positioning of the electronic component 1 is completed at the position shown in FIG.

As described above, before the closing operation of the slider 13 is completed, the board 2 of the electronic component 1 is moved between the two opposing sliders 13 and the contact portions 12c of the lower contact pins 12 respectively. Since the electronic component 1 can be slid with respect to the contact portion 12c of the contact pin 12 while being sandwiched, it is possible to effectively perform the wiping action between the terminal 3 of the electronic component 1 and the contact portion 12c of the contact pin 12. Can be.

FIGS. 8 to 11 show an IC socket jig according to a third embodiment of the present invention. FIG. 8 is a side view of the jig for IC socket, and FIG. 9 is an enlarged cross-sectional view of the jig for IC socket along the line AA in FIG. 10 (a), 10 (b), and 10 (c) are partial cross-sectional side views each showing an operation state of the IC socket jig, and FIG. 11 is a gripper of the IC socket jig shown in FIG. It is a perspective view.

Referring to these figures, the I of the third embodiment is shown.
The C socket jig 120 has a substantially rectangular base plate 121 disposed above the IC socket 10. Recessed grooves 121a are formed on four sides of the base plate 121, and an operating plate 127 is fitted and held in each of the grooves 121a so as to be movable substantially horizontally.
7 has a slider 13 of the IC socket 10 described above.
Are formed with two claws 127a that can be brought into contact with the inner part or the outer part of the pins 13e (see FIGS. 13 to 15) at both ends. A cam portion 143 that is in contact with the upper surface of the base plate 121 is provided integrally with the upper end of the operation plate 127. The cam portion 143 is formed with a tapered cam groove 144 that expands upward and opens on the upper and lower surfaces thereof.

A center pin 125 projecting upward is integrally provided at the center of the base plate 121, and a coil spring 134 is externally inserted into the center pin 125.

The gripper 135 disposed above the base plate 121 comprises an upper plate 135a, an intermediate plate 135b and a lower plate 135c. The lower plate 135c is connected to the base plate 121 via a center pin 125 so as to be vertically movable. , The coil spring 134 includes a base plate 121 and a lower plate 135c.
And a force that constantly pushes the lower plate 135c upward is generated. Further, the upper plate 135a, the intermediate plate 135b, and the lower plate 135c
Are connected to each other so as to be relatively displaceable in two directions perpendicular to the horizontal coordinate system, that is, in the same direction as the moving direction of the operation plate 127, as shown in FIG.

The lower plate 135c is provided with a cam operator 145 that acts on the cam groove 144 of the cam portion 143. The cam actuator 145 includes a projecting piece 145a projecting downward from the lower plate 135c, and a guide roller 145b rotatably supported at the lower end of the projecting piece 145a.

The switching plate 13 is provided on the base plate 121.
The center pin 125 and the coil spring 134 pass through the center hole of the switching plate 131. FIG.
As shown in the figure, corresponding to the positions of the four operation plates 127,
An outer spring arm 146 for urging the operation plate 127 inward (toward the center of the base plate);
Inner spring arm 1 for urging actuation plate 127 outward
47 are formed integrally. Outer spring arm 146
The inner spring arm 147 and the inner spring arm 147 are opposed to each other in a substantially arcuate shape, and the tip of the inner spring arm 147 is located inside the base of the outer spring arm 146.
The tip of the outer spring arm 146 is located outside the root of 47. The cam portion 143 of the operation plate 127
The outer spring arm 146 and the inner spring arm 14
7 are protrudingly provided.
Therefore, when the switching plate 131 is rotated, the engagement pin 1 with respect to the outer spring arm 146 and the inner spring arm 147 is moved.
48 positions change. Recesses 146 a and 147 a for locking the engaging pin 148 are formed at the distal ends of the outer spring arm 146 and the inner spring arm 147.

Further, as can be seen from FIG. 9, the outer spring arm 146 and the inner spring arm 147 are connected to the center pin 1.
25, the distance from the center of the center pin 125 to the tip of the outer spring arm 146 is set smaller than the distance from the center of the center pin 125 to the tip of the inner spring arm 147. ing. Therefore, when the switching plate 131 is rotated in the direction of arrow R in FIG. 9 to displace the engaging pin 148 to the distal end position of the inner spring arm 147, that is, the position of the base of the outer spring arm 146 (first position), Only the outward spring biasing force can be applied to the mating pin 148 by the inner spring arm 147. On the other hand, the switching plate 131 is turned in the direction of arrow L in FIG. When the engagement pin 148 is displaced to the tip position of the inner spring arm 147, that is, the position of the base of the inner spring arm 147 (second position), only the spring biasing force inward can be applied to the engagement pin 148 by the outer spring arm 146. That is, also in the third embodiment, the rotation position (the first position or the second position) of the switching plate 131 is used.
Position), the biasing direction of the claw 127a at the lower end of the operation plate 127 can be switched between the opening direction and the closing direction.

FIG. 10A shows a state in which the operating plate 127 is urged inward (toward the center of the base plate) by the inward urging force of the outer spring arm 146, and FIG. This shows a state in which the operating plate 127 is urged outward by the outward urging force of the spring arm 147. In the state shown in FIG. 10A, the guide roller 145b of the cam operator 145 is connected to the outer inclined cam surface 1 of the cam groove 144.
When the gripper 135 is pressed down, the guide roller 145b is brought into contact with the outer spring arm 14a.
The operation plate 127 can be moved outward against the spring force of No. 6 (see FIG. 10C). FIG. 10 (b)
In the state (1), the guide roller 145b of the cam actuator 145 abuts on the inner inclined cam surface 144b of the cam groove 144. Thus, when the gripper 135 is pressed down, the guide roller 145b operates against the spring force of the inner spring arm 147. The plate 127 can be moved inward (FIG. 10).
(C)).

As can be seen from FIGS. 8 and 9, positioning guides 126a project from lower end surfaces of four guide pins 126 extending downward from the base plate 121, respectively. By inserting these four projections 126a into positioning holes 11e formed on the upper surfaces of the four corners of the socket body 11 shown in FIG. 13, the IC socket jig 120 can be positioned with respect to the IC socket 10. it can. Further, the base plate 121 is positioned at a predetermined height position by the lower end surface of the guide pin 126 abutting on the upper surface of the socket body 11. When the projection 126a is inserted into the positioning hole 11e,
The two claws 127a at the lower end of the operation plate 127 respectively enter the recesses 11c of the socket body 11, and
7 is located inside or outside the pins 13e at both ends of the slider 13 of the IC socket 10.

Then, when the gripper 135 is pressed,
As described above, the guide roller 14 of the cam operator 145
5b is the cam groove 14 of the cam piece 143 integrated with the operation plate 127.
4 outer inclined cam surface 144a or inner inclined cam surface 144
b, the operating plate 127 performs the closing operation or the opening operation, and the claws 127a at the lower end of the operating plate 127 cause the pins 13e at both ends of the slider 13 of the IC socket 10 to move.
By pressing the slider 13 substantially horizontally.
Can be moved inward or outward.

Therefore, also in the third embodiment, the same operation and effect as in the first embodiment can be obtained.

Further, in the jig 120 for IC socket of the third embodiment, the upper plate 13 of the gripper 135 is provided.
5a, the intermediate plate 135b, and the lower plate 135c are connected to each other so as to be relatively displaceable in the same direction as the moving direction of the operation plate 127. Therefore, the upper plate 135a of the gripper 135 is positioned above the IC socket 10 by a manipulator or the like. At this time, even if the position of the upper plate 135a of the gripper 135 with respect to the IC socket 10 is slightly shifted, when the upper plate 135a is pressed, the intermediate plate 135b and / or the lower plate 135c is
Since displacement can be absorbed by displacement with respect to 35a, the lower plate 135c, the base plate 121, and the operation plate 127 can be correctly positioned with respect to the IC socket 10. Therefore, each slider 13 can be moved substantially horizontally without giving an excessive load to the slider 13 of the IC socket 10.

FIG. 12 shows a fourth embodiment of the present invention in which the third embodiment is modified. In the figure, the same components as those of the third embodiment are denoted by the same reference numerals. . In the fourth embodiment, a suction pad 150 for sucking the upper surface of the electronic component 1 is provided below the base plate 121. The suction pad 150 is attached to the lower end of a support shaft 151 projecting downward from the center of the lower surface of the base plate 121, and the inside of the suction pad 151 is connected to a channel 151 a and a support shaft 151 formed in the support shaft 151. The tube 152 is connected to a negative pressure generator (not shown). Therefore, the lower edge of the suction pad 151 is brought into contact with the upper surface of the electronic component 1 to make the inside of the suction pad 151 a negative pressure.
Can be adsorbed. Therefore, insertion / removal of the electronic component 1 into / from the IC socket 10 and opening / closing operation of the slider 13 can be performed. In the fourth embodiment, the support shaft 151 has a threaded portion 151b provided at its upper end.
When the suction pad 150 is detached from the base plate 121 together with the support shaft 151, it can be used for attaching and detaching electronic components such as an IC with a heat sink.

Although the illustrated embodiment of the present invention has been described above, the present invention is not limited to only the above-described embodiment, and its components are included in the scope of the invention described in the claims. Various changes can be made.

For example, the jig for an IC socket of each of the above embodiments can be used for the opening and closing operations of the slider 13 by the switching operation of the switching plates 31 and 131, but the operating plates 27 and 127 are biased. By using a fixed spring as the spring means, a jig dedicated to the opening operation or the closing operation may be used. In this case, the switching plates 31 and 131 can be omitted.

The jig of each of the above embodiments has four operating plates 2 supported on each side of the base plates 21 and 121.
7, 127, but the number of the operating plates 27, 127 need not be four, and one or more operating plates 2 may be provided in accordance with the arrangement and the number of the sliders in the IC socket.
7, 127 may be arranged.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view of a jig for an IC socket according to a first embodiment of the present invention.

FIG. 2 is a perspective view showing a state before a claw at a lower end of an operation plate of the jig for IC socket shown in FIG. 1 causes a slider to perform a closing operation;

FIG. 3 is a perspective view showing a state in which a claw at a lower end of an operation plate of the jig for IC socket shown in FIG. 1 opens a slider.

FIG. 4 is a perspective view of the switching plate incorporated in the jig for the IC socket of FIG.

5 is an explanatory view of a cam groove of the switching plate shown in FIG.

6 (a), (b) and (c) are longitudinal sectional views each showing an operation state of the jig for IC socket shown in FIG.

FIGS. 7 (a), (b) and (c) are explanatory views of the operation of the second embodiment of the present invention in which the cam grooves formed in the cam block of the first embodiment are changed.

FIG. 8 is a side view of a jig for an IC socket showing a third embodiment of the present invention.

9 is an enlarged cross-sectional view of the jig for an IC socket shown in FIG. 8, taken along line AA in FIG. 8A.

FIGS. 10 (a), (b), and (c) are partial cross-sectional side views each showing an operating state of the IC socket jig shown in FIG.

FIG. 11 is a perspective view of a gripper of the jig for IC socket shown in FIG. 8;

FIG. 12 is a partially sectional side view of an IC socket jig showing a fourth embodiment of the present invention in which the third embodiment is modified.

FIG. 13 is a schematic plan view of a socket body of an IC socket to which the jig for an IC socket according to the present invention is applicable.

14 (a) and (b) are a side view and a front view of a slider incorporated in the socket body shown in FIG. 13, respectively.

FIGS. 15 (a), (b) and (c) are views respectively showing I / O using the socket body shown in FIG. 13 and the slider shown in FIG.
It is a principal part longitudinal cross-sectional view for demonstrating operation | movement of C socket.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Electronic component 10 IC socket 11 Socket main body 12 Contact pin 13 Slider 13e Pin 20, 120 Jig for IC socket 21, 121 Base plate 27, 127 Operating plate 27a, 127a Claw 27e Guide pin (cam actuator) 29 Plate spring 31, 131 switching plate 33 limit pin 34 coil spring 35, 135 gripper 38 cam block 39 cam groove 39a inner inclined cam surface (first inclined cam surface) 39b outer inclined cam surface (second inclined cam surface) 135a upper plate 135b intermediate Plate 135c lower plate 143 cam piece 144 cam groove 144a outer inclined cam surface (second inclined cam surface) 144b inner inclined cam surface (first inclined cam surface) 145 cam actuator 145b guide roller 146 outer spring arm 147 inner spring A 148 Engagement pin 150 Suction pad

Claims (5)

(57) [Claims] 1. An IC socket jig for moving an electronic component substantially horizontally by using the IC socket for pressing and fixing or releasing an electronic component to and from a contact pin by moving the slider substantially horizontally. A base plate disposed on an upper portion of the IC socket, at least one operation plate supported on the base plate so as to be capable of swinging or moving horizontally, and having a claw at a lower end capable of contacting a slider; and a base plate and an operation plate. A spring means provided between the base plate and a spring at a lower end of the operation plate to bias the claw substantially in the same direction as the movement direction of the slider; a gripper disposed above the base plate and connected to the base plate so as to be vertically movable; Pushing movement of the gripper against the base plate causes the claw of the operation plate to move in the direction of movement of the slider against the spring force of the spring means. Cam engaging means for moving in substantially the same direction, wherein the cam engaging means is provided on one of the operation plates or grippers, and the cam is provided on the other of the operation plates or grippers, and A jig for an IC socket, comprising a cam operator to be engaged. 2. A first inclined cam surface for causing a cam of a cam engaging means to act on a cam operator when a gripper is depressed to move a claw of an operation plate inward of an IC socket, and to depress the gripper. Occasionally, it works with the cam actuator to make the claw of the operation plate
A second inclined cam surface for moving outwardly of the socket, and the base plate is provided with switching means for switching the biasing direction of the spring force of the spring means with respect to the operating plate;
2. The IC socket according to claim 1, wherein the cam operating member is selectively brought into contact with the first inclined cam surface or the second inclined cam surface by switching the biasing direction of the spring force of the spring means. Jig. 3. The two operation plates are respectively supported on at least two opposing sides of the base plate having a substantially rectangular shape. 3. The jig for an IC socket according to claim 1, wherein the shapes of the cams provided on one of the operation plates or the grippers are different from each other so as to cause a time difference in the movement to the IC socket. 4. The jig for an IC socket according to claim 1, further comprising a suction pad at a lower portion of the base plate for sucking an upper surface of the electronic component. 5. A gripper having an upper plate, an intermediate plate and a lower plate, wherein the lower plate is connected to the base plate so as to be vertically movable, and the lower plate is provided with a cam or cam actuator of a cam engaging means. Has been
The jig for an IC socket according to claim 1, wherein the upper plate, the intermediate plate, and the lower plate of the gripper are connected to each other so as to be relatively displaceable in the same direction as the moving direction of the operation plate.