JP3104965B2 - Electronic component insertion and removal mechanism in environmental test equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement in an electronic component insertion / extraction mechanism for simultaneously inserting a plurality of electronic components such as a printed circuit board into a socket of an environmental test apparatus and performing a test. It is.

[0002]

2. Description of the Related Art An electronic component is inserted into each of a plurality of plug-in connectors arranged at predetermined intervals in a multi-stage manner. And a first plate made of a plate material for pushing the electronic components in the environmental test device together with the connector in a direction of pulling the electronic components together with the connector from the test device when the electronic device moves forward.
, A second rod pivotally connected to the first pusher in parallel with the first rod, and a second pusher connected to the tip of the second rod, It is known that the second rod is turned around the first pusher in the direction around the axis when the rod is advanced in the pulling-out direction (Japanese Patent Publication No. 05-6).
No. 2704). Also, the electronic component is inserted into each of the plug-in connectors arranged at predetermined intervals in the test apparatus in a multi-stage manner, and the electronic component insertion / extraction mechanism accommodated in the environmental test apparatus is moved back and forth through the first rod. A first pusher made of a plate material for pushing the electronic components in the environmental test apparatus together with the connector in a direction of pulling out the electronic parts in the environmental test apparatus in a forward movement thereof, and a first pusher made of a plate material in parallel with the first rod. A second rod made of a flexible material joined to the first pusher; and a second plate made of a plate material for pushing the electronic component joined to the tip of the second rod in a direction to be inserted into the test apparatus. And a second pusher.
A free roller connected to the second pusher side of the rod, and a roller guide having at least an inner surface such that the rod expands in a direction in which the free roller comes into contact with the free roller and extends. A mechanism for inserting and removing electronic components in an environmental test device fixed to a test device has been invented (Japanese Patent Application No. 7-346082).

[0003]

However, such a conventional electronic component insertion / extraction mechanism has a rotation shaft for the second rod, which complicates the mechanism. Lubricants such as grease, which are generally used, cannot be used due to exposure, and there has been no alternative but to use fluororesin-based lubricating powder. However, since a load of several hundred kg was applied to such a shaft, it was insufficient to ensure lubricity. In addition, the shaft portion must be reinforced to withstand a load of several hundred kg, and if not reinforced, the portion may be deformed or worn, and may not be driven as intended. . Although the latter invention is excellent in inserting and removing an electronic component, it is not configured to remove only a single component after inserting the electronic component, and is not suitable for taking out a part of the electronic component. Met. Therefore, the present invention has been made in view of the disadvantages of the related art, and does not require the use of a lubricant, is structurally simple, is unlikely to break down for long-term use, and has a function of inserting an electronic component. It is an object of the present invention to provide a product that can be extracted individually.

[0004]

That is, according to the present invention, an electronic component is inserted into each of a plurality of plug-in connectors arranged at predetermined intervals in a test apparatus and accommodated in an environmental test apparatus. A plate member for driving in the front-rear direction via at least two upper and lower first rods and for pushing forward the electronic components in the environmental test apparatus together with the connector in the direction of pulling out of the test apparatus by forward movement thereof At least two upper and lower horizontal plates 5a and 5b, and vertical plates 4a and 4b connecting upper and lower ends of the horizontal plates.
A first pusher comprising: a pair of at least upper and lower second rods made of a flexible material which is parallel to the first rod and substantially perpendicularly joined to the first pusher; A second pusher made of two plate members for pushing the electronic components joined to the upper and lower ends of the second rod in a direction to be inserted into the test apparatus, and connected to the second pusher side of each of the second rods; The free roller is fixed to an environmental test device having an inner surface that comes into contact with at least the free roller so that when the second rod abuts on the free roller and the second rod extends in the direction in which the electronic component is pulled out, the rod diverges. Environmental test device comprising a roller guide and a roller holding member having a protruding portion or a concave portion substantially perpendicularly joined to the roller guide at an inner end of the roller guide. Kicking to achieve this purpose by the electronic components of the insertion and removal mechanism. The second rod connected to the first pusher so that the free roller connected to the second rod can easily contact the roller guide,
A mechanism for inserting and removing electronic components in an environmental test device that is biased inward. .

[0005]

The first rod of the mechanism according to the present invention,
Since the first pusher, the second rod, and the second pusher are connected via the horizontal plate and the vertical plate, respectively, the direction in which the electronic component is withdrawn from the environmental test device and the insertion direction according to the forward / backward movement of the first rod. Reciprocating in the direction of Then, the first pusher, the second rod, and the second pusher are used for movement following the forward movement (forward movement) of the first rod. As a result, the electronic component is pushed out by the first pusher, and a force is applied in a direction in which the electronic component comes off the connector of the environmental test device. On the other hand, since the roller guide having at least the inner surface is fixed to the environmental test apparatus, when the second rod advances to some extent, the free roller attached to the second rod is guided by the roller guide to the second rod. Is bent outward (spreads outward), the second pusher opens, and the lock of the second pusher to the electronic component is released. As a result, the electronic component is pushed out of the mechanism by the first pusher and can be pulled out, and a new electronic component can be inserted. Next, when the new electronic component is inserted into the insertion / extraction mechanism and moved backward (backward) from the above-described position in the direction in which the first rod is inserted, the second rod slides along the inner surface of the roller guide. However, when the roller guide is oriented in the same direction as the first rod, the second rod does not bend and becomes linear. As a result, the second pusher joined to the tip of the second rod comes into contact with the electronic component, and the subsequent return of the first rod conveys the entire multi-stage electronic component toward the connector of the environmental test device. The electronic component is automatically inserted into the connector. Then, the movement of the first rod stops, and the energization test is performed in the environmental test apparatus. Further, according to the insertion / extraction mechanism of the present invention, when the tester tries to pull out some electronic components from the connector, the first
Of the second rod and the second rod without moving
Push the pusher outward. At this time, the free roller joined to the second rod moves along the roller holding member. And when you push the second rod further,
Even if the player gets over the protrusion provided at the end of the roller holding member and releases his hand, the free roller catches on the protrusion and cannot return any more. As a result, the tester can pull out the desired electronic component by hand. When the second rod and the second pusher are returned to their original positions, a force may be applied to the second rod inward by hand so that the free roller passes over the protrusion. Further, by slightly advancing (forward moving) the first rod, the free roller rides over the protrusion of the holding member and returns to the original position naturally.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in detail with reference to the illustrated embodiments. In FIGS. 1 and 5, reference numeral 1 denotes a first rod that receives forward and backward power transmitted from upper and lower cylinders 2 and 2 via a transmission plate 3, and a distal end of the first rod 1 has a parallel horizontal plate. 5a, 5b and the horizontal plates 5a,
A first pusher 6 composed of vertical plates 4a, 4b joined so as to clamp second rods 7a, 7b, 7c, 7d composed of flexible members (leaf springs) at both ends of 5b. The central window of the first pusher 6 serves as a window for projecting a connector mounting portion of the electronic component toward a connector (not shown) of the environmental test device. The vertical plates 4a and 4b connect upper and lower ends of the horizontal plate.

The second rods 7a, 7b, 7c, 7d sandwiched between the vertical plates 4a, 4b and both ends of the horizontal plate,
It is joined substantially parallel to the first rod 1. In the present embodiment, both ends of the horizontal plates 5a, 5b are formed in a tapered shape as shown in the drawing so that the second rods 7a, 7b, 7c, 7d exert a force inside. The second rod 7a,
Vertical plates 8a and 8b made of thick members are respectively joined to the other ends of the second rods 7c and 7d and the other ends of the second rods 7c and 7d. Nine.

Free rollers 10 are connected to the outer side surfaces of the second rods 7a, 7b, 7c, 7d at a predetermined distance from the side of connection with the vertical plates 8a, 8b via support members. The free roller 10 projects above the second rods 7a, 7c, respectively, and
It protrudes below 7d. Also, as shown in FIGS. 1 to 4, the first pusher 6 in the environmental test apparatus extends from a position where the electronic component is connected to the connector of the environmental test apparatus to a position further advanced than a position where the electronic component is removed. A roller guide 14 having a linear portion in the same direction as the first rod for the free roller 10 connected to the rod, and an inclined portion for guiding the second rod in a direction to spread the second rod outward;
a and 14b are fixed symmetrically. In the present embodiment, since the second rods 7a, 7b, 7c, 7d are urged toward the inside of the mechanism, at least the contact surfaces with the free roller 10 are provided inside the roller guides 14a, 14b. doing. As a result, the second rod 7a,
The free rollers 10 mounted on the respective 7b, 7c, 7d are guided by the roller guides 14a, 14b to cause the second rods 7a, 7b, 7c, 7d to face outward, and to cause the second rods to expand. And as a result,
The second pusher 9 connected to the tip of the second rod moves away from the contact position with the electronic component 15 as shown in FIG.
The electronic components can be freely taken out. A roller holding member 16 made of a flexible material, such as a leaf spring, is joined to the roller guides 14a, 14b in front of the linear portions in a substantially outward direction. The ends are bent in an inverted V-shape toward the inclined portions of the roller guides 14a and 14b, and these are formed as projecting portions 16a. The roller guide 16 is also a free roller 1 connected to a second rod via a support member.
It is installed at a height where it can contact with 0. As a result, the free roller 10 moves along the roller holding member 16 when the second rod is pushed and spread, and has a structure in which the roller 10 can be locked on the inclined surface when the free roller 10 gets over the protrusion 16a.

In this embodiment, a free roller 1 of a rotating body is attached to the tip of the second pusher.
0 is adopted, but the present invention is not limited to this. If the outer surface has a small resistance, it is configured to simply fix a cylindrical one, and is equivalent to a free roller made of a sliding body. Works. In addition, the second rod is constituted by a linear rod, and is formed so as to be divergent as shown in FIG. 2 by a roller guide. However, the present invention is not limited to this. Every
When the second rod is moved backward, the second rod may be configured to be straightened by the roller guide.

In the electronic component insertion / extraction mechanism according to the present embodiment having the above-described configuration, the first rod, the first pusher, the second rod, and the second pusher are horizontally moved in conjunction with the cylinders 2, 2. Forward and backward (reciprocating). In the pre-movement, the electronic component is separated from the connector 20 by being pushed by the first pusher 6 because the connector 20 of the electronic component is fixed in the environmental test apparatus. First
When the pusher 6 moves forward, the second rods 7a, 7
b, 7c, 7d Free roller 10 joined in the middle
Performs a linear motion initially along the roller guides 14a, 14b, and then is guided by the inclined portions of the roller guides 14a, 14b, and spreads (bends) away from the electronic component (outward), so that the second rod The second pusher connected to the front end of the electronic component also spreads outward, releasing the engagement with the rear end of the electronic component, and the electronic component can be freely taken out from the mechanism.

[0011] Take out all the electronic components from this mechanism,
In a state where new electronic components are arranged in a multi-stage manner in the mechanism, the cylinders 2 and 2 are operated to move the first rod, the first pusher, the second rod, and the second pusher backward (return). Then, since the free roller 10 joined in the middle of the second rods 7a, 7b, 7c, 7d slides along the inclined portions of the roller guides 14a, 14b, the tip end of the second rod gradually increases. The second pusher joined to the roller 10 can lock the electronic component, and the roller 10
Returns to the straight path of the roller guides 14a and 14b, the second rod made of a leaf spring is in a linear state, and the second pusher is in a state of locking the electronic component 15,
The electronic component is conveyed toward the connector of the environmental test apparatus by the pushing action of the second pusher, and when the connecting portion of the electronic component is finally connected to the connector, the backward movement is completed, and the conduction test is performed there. In addition, when the second pusher is moved toward the connector (when the electronic component is drawn), even if a force for expanding the second rod is applied to the outside, in the present embodiment, the force is applied to the outer surface. Since the second pusher also forms the roller guide, the electronic component can be reliably transported without the second pusher being distorted.

FIG. 6 shows a second embodiment of the present invention, in which cylinders 2, 2, and 2 are arranged in three upper and lower stages, and each of the cylinders 2, 2, and 2 is provided with a transmission plate 3, 3, and 3. Are connected to the first rods 1, 1, 1 via the. The first pusher 6 includes horizontal plates 5a, 5b, 5 connected to the first rod.
c to the second rods 7a, 7b, 7c, 7d, 7e, 7f
And vertical plates 4a and 4b joined so as to be sandwiched therebetween. As in the previous embodiment, the horizontal plates 5a,
Both ends of 5b, 5c are formed in a tapered shape, and the second rods 7a, 7 are made of a horizontally flexible member (leaf spring).
b, 7c, 7d, 7e, 7f are urged inward. Further, the second rods 7a, 7b, 7c, 7d,
The other end of each of 7e and 7f is constituted by a support member 12 different from the first embodiment, and the vertical plates 8a and 8b are connected to the support member 12 via adjustment bolts 17. This is provided to adjust the risk that the vertical plates 8a and 8b may be distorted if the second rods 7e and 7f are interposed also in the intermediate portion. Note that the free roller 10 is not connected to the support member 12 connected to the second rods 7e and 7f located in the middle. The first pusher 6 according to the present embodiment is configured to lock the electronic component 15 by the thickness of the vertical plates 4a and 4b to which the second rod is connected. Other functions operate in the same manner as in the first embodiment. However, since the plurality of cylinders 2 are formed in multiple stages, the pushing action of the electronic component 15 by the first pusher 6 and the second pusher 9 is strong. Things.

In the first and second embodiments, since the roller holding member 16 is joined to the first pusher side of the free roller guides 14a and 14b, even after the electronic component has been inserted into the connector, the first and second free rollers are not inserted. It is possible to release the lock of the electronic component by the second pusher and the second pusher.
If the rod is pushed out by hand, the free roller 10 moves along the holding member 16 and the roller 10 is locked when the free roller 10 gets over the protrusion 16a.
The second rod is held in an expanded state. As a result, the operator can freely remove the desired electronic component from the connector. Then, when returning the expanded second rod to its original position, the free roller 10 gets over the protruding portion 16a by pushing the second rod inward by hand, and then returns naturally. Also, if the first rod is pushed in the forward (forward) direction, the locking of the free roller 10 by the protruding portion 16a is released, and the rod naturally returns.

[0014]

As described above, in the electronic component insertion / extraction mechanism in the environmental test apparatus according to the present invention, the second rod is constituted by a leaf spring without using a shaft member, and is mounted in the middle of the second rod. The free roller and the roller guide fixed in the environmental test apparatus are configured to naturally spread outward by the forward movement of the second rod, and are supported by the roller guide so that the linear movement is reliably performed by the backward movement. Therefore, the operation of inserting and removing the electronic component can be reliably performed. In addition, it is possible to provide a simple structure that does not require the use of a lubricant and does not easily break down for many years of use. Also, when it is desired to extract the electronic component after joining the electronic component to the connector, the presence of the holding member allows the electronic component to be freely unlocked by the second pusher, and its utility value is high. .

[Brief description of the drawings]

FIG. 1 is a plan view showing an embodiment of an apparatus according to the present invention.

FIG. 2 is a plan view showing a state where a second rod is displaced in an embodiment of the device according to the present invention.

FIG. 3 is a bottom view showing a relationship between a second rod and a roller guide.

FIG. 4 is a partially cutaway side view showing a relationship between a second rod and a roller guide.

FIG. 5 is a perspective view of an embodiment according to the present invention.

FIG. 6 is a perspective view of a second embodiment according to the present invention.

[Explanation of symbols]

 Reference Signs List 1 first rod 2 cylinder 3 transmission plate 4a, 4b vertical plate 5a, 5b, 5c horizontal plate 6 first pusher 7a, 7b, 7c, 7d, 7e, 7f second rod 8a, 8b vertical plate 9 second Pusher 10 Free roller 12 Support member 14a, 14b Roller guide 15 Electronic component 16 Roller holding member 16a Projection 17 Adjusting bolt 20 Connector

──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Eiji Sasaki 4-19-7 Kamata, Ota-ku, Tokyo Inside Ando Electric Co., Ltd. (72) Inventor Atsushi Hasegawa 2-6-1 Nihonbashi Honcho, Chuo-ku, Tokyo Yamato JP-A-9-159723 (JP, A) JP-A-61-265580 (JP, A) JP-A-61-265579 (JP, A) JP-A-61-265578 (JP) , A) (58) Fields investigated (Int. Cl. ⁷ , DB name) G01R 31/26 G01R 31/30 H01L 21/66

Claims (2)

(57) [Claims] An electronic component insertion / extraction mechanism for inserting an electronic component into each of plug-in connectors arranged in a multi-stage manner at predetermined intervals in a test device, and inserting and removing at least two upper and lower electronic components in the environmental test device. At least two upper and lower horizontal plates 5a made of a plate material that can be driven in the front-rear direction via the first rod and pushes the electronic components in the environmental test apparatus together with the connector in the direction of pulling out the electronic parts in the forward movement. , 5b and vertical plates 4a, 4b connecting the upper and lower ends of the horizontal plate, and a first pusher which is parallel to the first rod and substantially perpendicular to the first pusher. At least top and bottom 1 made of flexible material
A pair of second rods, a second pusher made of two plates for pushing the electronic components bonded to the upper and lower ends of the second rod in a direction of inserting the electronic components into the test apparatus, A free roller connected to the second pusher side of the rod, and abutting at least the free roller so as to abut the free roller and extend the rod when the second rod extends in the direction in which the electronic component is pulled out. An environmental test apparatus comprising: a roller guide fixed to an environmental test apparatus having an inner surface; and a roller holding member having a protruding portion or a depression joined to the roller guide at an inner end of the roller guide substantially perpendicularly to the roller guide. Electronic component insertion / extraction mechanism. 2. The electronic component insertion / extraction mechanism according to claim 1, wherein the second rod connected to the first pusher is urged inward.