JP3392783B2 - Burn-in board insertion / extraction device - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an insertion / extraction device for inserting and removing a burn-in board loaded on a board carrier having an upper member and a lower member forming a structure into a connector of a burn-in device. Regarding

[0002]

2. Description of the Related Art As a device for inserting / removing the edge of a burn-in board loaded on a board carrier that can be put in and out of a thermostat into a connector provided on the back side of the thermostat,
Various devices are known in which the front shoulder and the rear end of the burn-in board are projected from the front and rear ends of the board carrier, and an insertion / removal mechanism for pushing these parts is provided so that all the burn-in boards can be inserted or removed at the same time ( See, for example, Japanese Examined Patent Publication No. 5-62702).

In the burn-in board insertion mechanism in such an apparatus, a connecting shaft is extended from the drive unit at the front end to the rear end at the upper and lower positions of the board carrier, and the rear end of the burn-in board is pushed into the connection shaft. A bar and an arm part that retracts it outside the range of the forward and backward path of the board carrier are provided, and with insertion into the burn-in board connector,
The insertion rod does not get in the way when it is removed.

However, in such a conventional device, since an edge insertion mechanism is provided on the rear end side of the burn-in board, that is, on the inlet side of the constant temperature bath, an extra space is required for the range of rotation of the insertion rod by the arm. Therefore, the size of the constant temperature bath increases accordingly. In addition, since an independent insertion rod that does not have strength is used, the insertion rod is easily bent at the time of edge insertion, and since the rear end of the burn-in board is directly pushed by the left and right separated insertion rods, the insertion force is uneven on the left and right. May become. As a result, the edge may not sufficiently enter the connector and a contact error may occur.
Further, since the burn-in board projects from the front and the rear of the board carrier, the supporting state thereof is unstable, and a positional shift is likely to occur during transportation.

Further, there is a problem that it is difficult to cope with automation. For example, as disclosed in Japanese Unexamined Patent Publication No. 10-95507, a facility for automating a burn-in test of an IC by carrying out an unmanned transfer of a board carrier equipped with a burn-in board by an AGV between a thermostatic chamber and an IC insertion / extraction machine Has been converted. In such equipment, the board carrier mounted on the AGV is automatically moved to the constant temperature tank, but when the board carrier is transferred to the constant temperature tank, the board carrier is likely to be displaced or moved up and down. If there is an edge insertion mechanism at the inlet of the constant temperature bath, it may cause an obstacle.

The board rack, which is conventionally fixed to a constant temperature bath, is composed of a fixed outer rack, a slide rail attached to the fixed outer rack, and an inner rack guided in the front-rear direction by the slide rail. A device has been proposed in which the burn-in board loaded on the inner rack is mechanically inserted into and removed from the connector by coupling the inner rack to the inner rack and reciprocating the same for a certain distance (actual fair 6-45275). (See Japanese Patent Publication).

In this apparatus, a hole is formed in each rail for mounting the burn-in board, and a biased pin is arranged so as to project from the bottom of the hole. When the burn-in board is inserted into the rail, the pin is pushed by the burn-in board. Allowing its insertion by pressing, when the burn-in board is inserted to a predetermined position, the hole and the pin are aligned, the pin enters the hole and protrudes upward, joins the burn-in board and the inner rack, The burn-in board can be inserted into and removed from the connector via the inner rack by the reciprocating movement of the air cylinder.

However, it is difficult for the pins thus biased to receive a lateral load generated when the burn-in board is inserted into or removed from the connector, and such a structure is complicated and extremely expensive. Also, it is difficult to improve the positional accuracy of all holes provided in the multi-stage rail,
Since the pin position is easily moved by the lateral load because it is biased, the insertion amount of the burn-in board becomes uneven, and a contact error is likely to occur. Further, since the fixed type board rack is originally designed to be able to move a little, it cannot be carried out to the outside of the thermostatic chamber and used for the purpose of carrying burn-in boards like a board carrier.

Further, a hole is provided in the burn-in board loaded on the board rack fixed to the constant temperature bath, and a frame member having a claw member capable of entering and leaving therein and a withdrawal rod integrated with the claw member is provided. , The frame member is moved back and forth in the front-back direction and moved up and down in the vertical direction to move the claw member and the removal bar in a square shape so that the burn-in board can be inserted by the claw member and removed by the removal bar. A mechanical insertion / extraction device has been proposed (see Japanese Patent Application Laid-Open No. 8-136613). However, this device is not suitable for inserting / removing the burn-in board loaded on the board carrier into / from the connector because the nail is inserted into and removed from the hole of each burn-in board. Further, since a space for inserting and removing the nails is required in all the stages of the burn-in board, there is a problem that the loading pitch of the burn-in board becomes wide and the number of loadings decreases.

[0010]

Therefore, the present invention comprehensively solves the above problems in the prior art, does not increase the cost with a relatively simple mechanism, and improves the loading state on the board carrier. An object of the present invention is to provide a mating / unmating device that can reliably bond a burn-in board to a connector and is suitable for overall automation of burn-in test equipment.

[0011]

In order to solve the above problems, the present invention provides a burn-in board mounted on a board carrier having an upper member and a lower member forming a structure. In a device for inserting into and removing from a connector of a device, a receiving portion fixed to the board carrier so as to receive a rear end in the insertion direction of the burn-in board, and the upper member or the lower member. An engaging portion provided on at least one of the members, an engaging member engageable with the engaging portion, a moving means capable of reciprocating in a direction of inserting and removing the engaging member, and the engaging member. An engaging on / off means for enabling the operation of the engaging member so that the engaging member engages with the engaging portion in the forward movement and disengages in the returning movement corresponding to the reciprocating movement. Characterize.

In the above, it is preferable that the engaging portion, the engaging member, the moving means, and the engaging on / off means are provided corresponding to the upper member and the lower member.

According to a second aspect of the present invention, in addition to the features of the first aspect, the engaging portion is a hole, and the engaging member includes a claw that is fitted into and removed from the hole. It is a claw-shaped member.

According to a third aspect of the present invention, in addition to the features of the first aspect, the engagement on / off means rotatably supports the engagement member so that the operation of the engagement member is possible. It is characterized by comprising a cam mechanism provided with a support shaft, a cam surface provided on the engaging member, and a cam follower for guiding the cam surface.

In addition to the above, the invention of claim 4 is coupled to the moving means so as to remove the burn-in board from the connector when the moving means moves the engaging member in the removing direction. A removing member, and the support shaft is attached to the removing member.

[0016]

1 to 3 show examples of the construction of a board carrier and a thermostatic chamber equipped with a burn-in board inserting / removing device to which the present invention is applied, showing the side and front conditions of the thermostatic chamber and the board carrier, respectively. Top and side views are shown. The insertion / removal device burns in the burn-in board 2 mounted on a board carrier 1 provided with a top plate 11 as an upper member and a bottom plate 12 as a lower member forming a structure.
A device fixed to the board carrier 1 so as to receive the rear end 2a of the burn-in board 2 in the Y ₁ direction which is the insertion direction of the burn-in board 2 and the front direction of the board carrier 1. The receiving plate 13 as a part, the engaging holes 11a and 12a which are engaging parts provided in both the top plate 11 and the bottom plate 12 in this example, and the engaging holes in this example as engaging members which can be engaged with these. 11a and 1
Claw member 3 with claw 3a that is inserted into and removed from 2a, insertion direction Y
₁ and the withdrawal direction Y ₂ and the rearward direction of the board carrier 1,
That is, the cylinder device 4 including an air cylinder or the like as a moving unit that allows the claw member 3 to reciprocate in the insertion / removal direction or the front-rear direction Y, and the claw member 3 corresponding to the reciprocal movement, the holes 11a, 1
In the present example, the support pin 5, the cam surface 3c of the elongated hole 3b, and the cam follower as the engagement on / off means that enables the claw member 3 to move so as to engage with the forward movement 2a and release the forward movement. It has a cam mechanism composed of 6 or the like.

The engaging holes 11a and 12a, the claw member 3,
A support pin 5, which constitutes the cylinder device 4 and the cam mechanism,
In this example, the elongated hole 3b and the guide pin 6 are provided above and below the top plate 11 and the bottom plate 12, respectively.

The cam mechanism serves as a support shaft for rotatably supporting the pawl member 3 so that the pawl member 3 can perform the above-described operation, that is, the pawl 3a can be inserted into and removed from the engagement holes 11a and 12a. It is composed of the support pin 5, the cam surface 3c on the side of the engaging holes 11a and 12a in the elongated hole 3b formed in the claw member 3, the cam follower 6 for guiding the cam surface, and the like.

Further, in the present embodiment, the cylinder device 4 is provided with an extraction rod 7 as an extraction member connected to the cylinder device 4 so as to remove the burn-in board 2 when moving the claw member 3 in the removal direction Y _2. The support pin 5 is attached to the extraction rod 7.

4 to 6 show side surfaces including the lower and upper planes of the insertion / removal device portion and the operating state of the claw member portion, respectively. The above basic structure will be described in more detail with reference to these drawings. 4 and 5, the left side portion of the center line C is omitted. Back plate 10 on the back side of the constant temperature bath 100
A connector positioning plate 103 is attached to the connector 2, and the connector 101 is fixed thereto. On the plate 103, upper and lower guide pins 104 for positioning the board carrier 1 when it comes in are attached. Rollers 105 for mounting, supporting, and carrying the board carrier 1 are provided on both sides of the bottom of the constant temperature bath.

The withdrawal rods 7 extend vertically on both sides in the X direction, which is the width direction of the constant temperature bath, and shoulder portions 2c on both sides of the leading edge 2b of the burn-in board shown in FIG.
Is provided so that the burn-in board 2 can be removed from the connector 101 via the edge 2b. The extraction rod 7 is vertically coupled by a connecting shaft 7a in a frame shape so as to have an integral rigidity and allow both sides to move synchronously as a whole including the vertical direction. Note that the upper connecting shaft is not shown in FIG.

The cylinder device 4 has a total of 4 on both sides and above and below.
A stand is provided, and its rod 4a is connected to a connecting shaft 7a, and the removing rod 7 is inserted in the inserting / extracting direction Y (Y
_1- Y ₂ ) Move back and forth. Then, as described above, the claw member 3 is rotatably supported by the support pin 5 attached to the removal rod 7, and together with the removal rod 7 via the connecting shaft 7 a and the support pin 5, the claw member 3 is moved by the cylinder device 4. It can be reciprocated in any direction. Although not shown in detail, a proper bearing member is usually fitted into the support pin 5,
The pawl member is rotatable on it.

The claw member 3 has a shape as shown in FIG. In FIG. 6, the lower one as the engaging hole 1
2a is shown. On the lower side, there is an engaging hole 12a above the claw member 3, and the claw 3a rotates into the hole from below. In the upper engaging hole 11a portion, the claw member 3 is engaged with the engaging hole 1
1a, the claw 3a rotates from above to enter the hole, but otherwise it is the same as the lower part,
The case of the lower engagement hole 12a will be described below.

As described above, the cam follower 6 is provided so as to guide the cam surface 3c of the elongated hole 3b. The cam follower 6 is attached to the support plate 4b of the cylinder device 4 as shown in FIG. It is in 3b. Although not shown in detail, normally, the cam follower 6 is composed of a pin and a bearing fitted in the pin, and the outer surface of the bearing guides the cam surface 3c while rotating. In addition,
If the cam surface 3c is provided in the elongated hole 3b, the operation is stable and more reliable, but it is not necessarily one surface of the elongated hole 3b, and if it is an appropriate curved surface capable of performing the intended operation. Good. The engagement hole 12a is appropriately reinforced by a bending plate member as shown.

FIG. 7 shows an example of the structure of a burn-in board.
The burn-in board 2 of this example has a large number of I
The C socket 21, the board stay 22, and a back plate 23 covering the board stay 22 are provided on the upper and lower surfaces, respectively, and the gasket 2 protruding from the upper surface 24 to the outside of the IC socket 21.
5 and its groove frame 26. The tip edge 2b is connected to a substrate circuit (not shown), and the IC is electrically connected to the edge 2b via the IC socket 21 and the substrate circuit. The burn-in board 2 is mounted on the board carrier 1 and the rear end 2a or the shoulder portion 2c is pushed, so that the connector 101 is Y ₁ -Y through the edge 2b.
It is inserted and removed in _two directions.

8 and 9 show the structure of each part of the board carrier. The structure of the board carrier of this example will be described with reference to these drawings. The basic structure of the board carrier 1 is a window 31.
Side plates 30 that are opened and extend in the vertical direction, vertical frame portions 32 in which the side plates 30 are bent at both ends in the Y ₁ -Y ₂ direction so as to form the vertical frames of the four corners, and similarly the upper and lower ends. It is configured by the front-rear direction horizontal frame portion 33 bent by, the upper and lower widthwise horizontal frame plates 60 connected to these frame portions, the top plate 11 and the bottom plate 12 connected to these frame plates, and the like. . The receiving plate 13 is attached to the vertical frame plate 32. Therefore, the receiving plate 13 is provided with sufficient bending rigidity by the vertical frame plate 32 even if it is long in the vertical direction, and can reliably receive the rear ends 2a of the burn-in boards of all the stages without being deformed. Reference numeral 9 is a positioning hole, which is fitted with the upper and lower guide pins 104 and 105 when the board carrier 1 is placed in the constant temperature bath to position the board carrier. Reference numeral 8 is a sensor backing plate at that time.

A groove 30a is formed on each of the side plates 30 by a bent portion 34 in which a part of the window 31 is left to be bent inward from the side plate surface 30b when the side plate is processed, and the burn-in board 2 is multi-staged at this portion. Then I try to support it in 10 steps. The board carrier 1 of this example is I
The lid 40 is equipped so that C can be heated without wind. Lid 4
As shown in FIG. 8D, 0 has an edge portion 41 that presses against the gasket 25 of the burn-in board 2 in the closed position A shown by the solid line on the right side and closes the IC with the surface 24.

The lid support mechanism 50 for supporting the lid 40 is provided with the lid 4
0 supports the lid 40 so that it can move between a closed position A where it closes the IC and an open position B where it opens. for that reason,
The lids 40 extend in the X direction and are located at both ends in the Y direction at each stage.
Beam rods 51 which are attached and supported, and these are Y at the top.
Direction connecting frame 52, frame-like connecting bar 52, uppermost connecting bar 52 and vertical connecting bar 53 penetrating through all the beam bars 51 and fixing them, receiving seat 54 fixed to bottom plate 12 , A spring 55 having one end side supported thereon and the other end side supporting the vertical connection shaft 53 through both ends of the beam bar 51 ₁₀ at the bottom stage,
Etc. A push-in pin 56 is provided at the central position of the uppermost connecting rod 52 as an operating end so that the lid 40 can be pushed down via the lid supporting mechanism 50.

The constant temperature bath 100 is provided with two air cylinders 110 for opening and closing the lid as a drive mechanism. The air cylinder 110 includes a rod 111, and when driven, moves the lid 40 between a closed position A and an open position B via a lid support mechanism 50 including a push pin 56. That is, in this example, the rod 111 is projected by a predetermined distance to open the lid 40 against the force of the spring 55 through the push pin 56, the connecting rod 52, the vertical connecting shaft 53, and the beam rod 51 ₁₀ to the open position B. From the closed position A to the closed position A, the rod 111 retracts and returns to the original position, and the force of the spring 55 moves the lid 40 from the closed position A to the open position B.

When carrying out the burn-in test of the IC in the constant temperature bath 100, the board carrier 1 having the burn-in board 2 having the IC mounted therein is carried in / out of the inside 120 of the constant temperature bath and positioned in the inside 120 of the rear cover 40. Will be opened and closed. In this case, it is naturally possible for a person to perform all of these operations, but in the present example, such operations are automatically performed. That is, when the sensor 130 detects a predetermined position of the board carrier 1, this signal is sent to the lid opening / closing controller 140 to operate the lid opening / closing air cylinder 110.

Although not shown, the constant temperature bath 100 is provided with a heater, a blower, etc. as a normal structure for the burn-in test, and hot air consisting of parallel laminar flow in the width X direction of the board carrier 1 is not shown. It is configured to circulate in a tank surrounded by a heat insulating wall.

The above insertion / extraction device operates in the following manner in the burn-in test and exerts its function and effect. An IC to be subjected to a burn-in test outside the constant temperature bath 100 is mounted on the IC socket 21 of the burn-in board 2, and its edge 2b is the front side, and the board carrier 1 on the right side in FIG.
The burn-in board is inserted from the front side of the board along the groove 30a in the Y ₂ direction until it hits the receiving plate 13. In this case, if an IC inserter / extractor is used, it is possible to automatically mount the IC on the burn-in board and mount the burn-in board on the board carrier.

As described above, according to the receiving plate 13 to which the present invention is applied, alignment and positioning of the burn-in board are easier than in the case where the front and rear ends of the burn-in board are projected from the board carrier as in the conventional case. Further, the stability of the burn-in board during the transportation of the board carrier is good.

The board carrier 1 on which all the burn-in boards are mounted is transported to the front of the constant temperature bath 100 by an appropriate transport means such as an automated guided vehicle (AGV), and transferred into the constant temperature bath. Although not shown, this AGV pushes the board carrier 1 while bridging between the AGV and the thermostat so that the board carrier can be automatically transferred and put in and out of the thermostat, and the AGV is placed on the roller 105 in the thermostat. Reprint.

At this time, since the mechanism for inserting and removing the burn-in board, which is provided in the conventional apparatus, is not provided on the inlet side of the constant temperature oven, the transfer of the board carrier into the constant temperature oven becomes safe and easy. . In addition, the space on the inlet side of the constant temperature oven can be narrowed to reduce the size of the constant temperature oven accordingly.

The board carrier 1 placed in the constant temperature bath 100 is conveyed to the back side of the constant temperature bath in the Y ₁ direction of FIG. 1 by the roller of the rollers 105 which is driven to rotate, and the sensor 130 of FIG. As shown in the lower side of FIG. 1 and in FIG. 5, the board carrier 1 detects the sensor contact plate 8 of FIG.
The shoulder portion 2c stops at a position where it hits the extraction rod 7. In this initial state, the cylinder rod 4a is contracted, and the extraction rod 7 is also in the initial position and is not moved. The claw member 3 is also at the initial position where it is disengaged from the engagement holes 11a and 12a, and the burn-in board 2 is not inserted into the connector 101 as a matter of course. In FIG. 6, the state of the claw member 3 at this time is indicated by a two-dot chain line.

When the cylinder device 4 is actuated and the rod 4a pushes the connecting shaft 7a, the claw member 3 moves in the Y ₁ insertion direction via the extraction rod 7 and the support pin 5. As a result, the cam surface 3c of the claw member 3 is guided by the cam follower 6, and the claw member 3 moves in the Y direction.
The claw 3a moves in _one direction and rotates clockwise, and the claw 3a is inserted into the engagement hole 12a as shown by the chain double-dashed line of the claw member 3 in FIG. This state is also shown in the two-dot chain line in the lower part of FIG. 1 and in the plan view of FIG. Then, in this state, the cam follower 6 is in contact with the surface of the cam surface 3c facing the Y ₁ direction, and the claw member 3 is further moved to the Y direction.
_When moving in _one direction, the pawl 3a is guided by the cam surface in the same direction.
Also moves in the same Y ₁ direction.

The cylinder rod 4a further extends and the claw member 3
Is further moved in the Y ₁ direction, as shown by the alternate long and short dash line of the claw 3a, the claw 3a hits the edge of the engaging hole 12a, P ₃
Position and press this part to move the board carrier 1 to Y ₁
Then, the claw member 3 and the board carrier 1 finally reach the position P ₄ shown by the solid line.

During this time, the removal rod 7 also moves in the same manner as the claw member 3.
And, from the initial position shown by the two-dot chain line to the final position shown by the solid line
It has moved to the position. In this case, the claw 3a is P₂Position of
The pull-out bar 7 and the shoulders of the burn-in board 2 when
It is in contact with 2c, but P ₂Position to P₃Up to the position
Only the claw member 3 and the removal bar 7 move, and the board carrier 1,
Therefore, since the burn-in board 2 does not move,
P between the shoulder 2c of the burn-in board 2₂To P₃
The distance d up to will be opened.

Due to the movement of the board carrier 1 as described above, the burn-in board 2 positioned so that the rear end 2a abuts the receiving plate 13 is pushed by the receiving plate 13 from the position of P ₃ of the claw 3a. Move in the Y ₁ direction and claw 3
When a reaches the P ₄ position, the edge 2b of the burn-in board 2 has been inserted into the connector 101, and the insertion of the burn-in board is completed. The initial position of the burn-in board 2 and the final position of the removal completion are shown as the lower and upper parts in FIG. 1, the final position in FIG. 4, and the initial position in FIG.

According to the burn-in board insertion device described above, the board carrier is accurately guided in the Y ₁ direction by fitting the upper and lower three guide pins 104 of the constant temperature bath and the corresponding positioning holes 9. Then, the movement of the burn-in board via the receiving plate 13 at the rear end is performed as it is at the rear end 2a of the burn-in board.
The burn-in board 2 also moves accurately in the Y ₁ direction, and a uniform force is applied to the left and right ends of the rear end 2a. As a result, the burn-in board 2 has the connector 101.
Is securely inserted into. That is, in the past, the direct urging of the burn-in board rear end by the insertion rod that can move independently left and right due to the connection with the connecting rod may cause an imbalance in the urging force on the left and right. It was resolved.

Further, since the receiving plate 13 is attached to the main body of the board carrier, it is sufficiently reinforced so that there is no deformation such that the central portion swells in the vertical direction, and the burn-in board is uniformly applied with a necessary and sufficient urging force. It can be energized. That is, it is possible to solve the shortage of the strength of the insertion rod of the conventional device and the shortage of the insertion force due to the pin that is biased and supported.

Further, since the burn-in board is pushed by utilizing the structure and strength of the board carrier, the engaging hole for moving the board carrier can be arranged in the vicinity of the tip, so that it can be directly moved by the driving device. It is possible to shorten the distance between the engagement hole, which is the force application point, and the connector position, which is the insertion force reception point. As a result, the dimensional error of the operating part is significantly smaller than that of a conventional device that uses a connecting rod that extends from the front end to the rear end, and the amount of insertion into the burn-in board connector is accurately determined. be able to.

Due to the uniform application of the pushing force in both the left and right and up and down directions, the uniformity of the pushing direction, the improvement of the pushing amount accuracy, etc., the contact error at the time of inserting the burn-in board in the insertion / removal device of this example. Can be completely prevented. And, it can greatly contribute to the complete automation of the burn-in test.

When the burn-in board 2 is inserted into the connector 101, the driver board installed outside the thermostat and the IC are electrically connected via a relay board (not shown).

When the board carrier 1 reaches the final position, the sensor 130 is turned on, and the lid opening / closing controller 140 drives the lid opening / closing air cylinder 110 in response to the signal. As a result, the push-in pin 56 is pushed in, and the connecting rod 5
2, the lid 40 of each step is pushed down via the vertical connecting shaft 53 and the beam rod 51, and the edge portion 41 thereof is brought into pressure contact with the gasket 25. At this time, the spring 55 is pushed down and compressed. As a result, the lid 40 seals the IC mounted on the burn-in board 2 and exhibits a sufficient sealing effect.

When the IC is closed by the lid 40, the constant temperature bath 10
At 0, a heater and a blower are operated, and parallel laminar hot air circulates in the tank 120. This hot air flows through the windows 31 formed in the both side plates 30 and flows out of the lid 40, and the IC inside the lid 40 has no wind from the outside and the convection of the internal air is suppressed to the minimum. It is heated in a windless condition close to the conditions. As a result, there is no variation in the wind speed, and there is no problem that the side that is hit by the wind and the side that is not hit by the wind are eliminated, and all ICs are heated and raised to the same temperature under the same conditions, and extremely high-precision heat treatment can be performed. it can.

When the ICs inside the tank 120 and inside the lid 40 reach a predetermined temperature, the ICs are operated by an external driver board to perform various tests. When the burn-in test is completed, the heater and the blower are stopped, a signal is given to the lid opening / closing controller 140 from the overall control unit of the burn-in device, and the lid opening / closing controller 140 controls to open the lid 40. As a result, the rod 111 pushed out of the lid opening and closing air cylinder is retracted, and the spring force of the spring 55 opens the lid of each stage by an operation opposite to the closing operation.

The rod 111 retracts and the push pin 56
When the pressure contact relationship with is released, the board carrier 1 becomes movable, the cylinder device 4 operates, and the burn-in board 2 is removed from the connector 101. The operation at this time is basically the opposite of the insertion, but is as follows.

When the cylinder device 4 is actuated, the rod 4a contracts and the removal rod 7 is removed in the removal direction Y via the connecting rod 7a.
Move to ₂ and move claw member 3 in the same direction. At the beginning of the removing operation, the removing rod 7 and the shoulder portion 2c of the burn-in board
There is a gap d between the and when the board carrier 1 is inserted, and only the extraction bar 7 moves without the board carrier 1 moving. When this movement progresses and the interval d disappears, the pull-out rod 7 pushes the shoulder portion 2c in the Y ₂ direction, so that the burn-in board 2 is connected to the connector 10.
Removed from 1.

With this movement, the cam surface 3c of the claw member 3
Guided by the upper end of the cam follower 6, the claw member 3₂
The claw 3a moves to the direction P₃When returning to the position of, the cam surface
3c descends the cylindrical surface of the cam follower 6.
The pawl member 3 rotates counterclockwise and the pawl 3a engages with the engaging hole 1
Escape from 2a. As a result, Y of the board carrier 1
₂It is possible to move in the direction, and it can be taken out from the constant temperature bath.
Growls In this case, board carrier by AGV
It is possible to take out automatically and transfer it onto it.
It

According to the burn-in board insertion / removal device as described above, the burn-in board can be inserted / removed in / from the connector only by the operation of one type of upper and lower cylinder devices.
The structure of the insertion / removal device is simple, and the operation is reliable and quick.
Further, compared with the conventional device in which the engaging pins and the engaging holes are provided on each burn-in board itself stacked in multiple stages, the engaging mechanism is provided only at the upper and lower two places.
Since the structure of the entire apparatus is simplified and it is not necessary to increase the interval between the burn-in boards, it is possible to reduce the size of the board carrier and the constant temperature tank in the height direction. Even in the conventional device of the insertion rod type, since the connecting rods are provided at the upper and lower ends, the height of the device of this example does not become larger than that of the conventional device of this type.

FIG. 10 shows another example of the insertion / extraction device. In the apparatus of the present example, instead of the claw member 3 shown in FIG. 6 and the like, an engaging member, a claw 10a as an engagement ON / OFF means, and a main body portion 10b are formed of an independent cam mechanism, a solenoid, an air cylinder, and the like.
A nail loading / unloading device 10 is provided. The main body portion 10b is supported by the slide base 10c so as to be movable in the Y direction,
It is connected to the extraction rod 7 via a moving shaft 7b.

Also in this apparatus, as in the apparatus shown in FIG.
0a corresponds to the reciprocating movement of the main body part 10b, and at the time of insertion
Claw 10a₂Engagement hole 1 by projecting to the position as shown
2a and insert it through the extraction rod 7 and the moving shaft 7b.
D by device 4₃To P _FourCan be moved to a position
Wear. P when removing₃Engage in position as shown by chain double-dashed line
Escape from the hole 12a. As a result, burn-in board
Can be removed from the connector. The left side of the figure
As shown by the chain double-dashed line,
Moving device 10d including an air cylinder for the device
May be provided.

In the above, an example in which one board carrier is mounted in a constant temperature bath has been described. For example, in the case where four board carriers are mounted in the constant temperature bath vertically and horizontally in two rows and two rows. The present invention can also be applied. Further, it goes without saying that the present invention can be applied to a normal burn-in board that is not equipped with the lid 40.

[0056]

As described above, according to the present invention, in the invention of claim 1, the burn-in board loaded on the board carrier having the upper member and the lower member forming the structure is inserted into the connector of the burn-in device. Also, since the insertion / removal device for withdrawing from the connector has the receiving portion, the engaging portion, the engaging member, the moving means, and the engaging on / off means having a predetermined configuration, the moving means is in the direction of inserting the burn-in board. When the engaging member is moved, the engaging on / off means functions so that the engaging member engages with the engaging portion in response to this movement,
By moving the board carrier on which the burn-in board is loaded in the burn-in board insertion direction so that the receiving portion of the board carrier receives the rear end of the burn-in board in the insertion direction, the supporting force can insert the burn-in board into the connector.

In the above, the engaging portion is provided on at least one of the upper member and the lower member of the board carrier, but if the board carrier has sufficient strength, for example, only the lower member is engaged. You may make it provide a joint part. That is, even at that time, by moving the lower member in the inserting direction by the moving means or the like, the board carrier maintains the integral shape without being deformed, and the receiving portion correctly moves the burn-in board in the inserting direction. Can be inserted into. However, if the engaging portions are provided on both the upper member and the lower member, the upper and lower parts can be uniformly moved in the inserting direction, so that the inserting operation becomes more reliable.

When the burn-in board is inserted into the connector by moving the board carrier in the inserting direction and a burn-in test is performed, the burn-in board is removed from the connector. At this time, the moving means removes the engaging member in the removing direction. Since the engagement on / off means acts to release the engagement between the engagement portion and the engagement member along with this movement, it is possible to move the board carrier in the removal direction when removing the burn-in board. Become. The burn-in board can be removed from the connector by an appropriate method such as using a removal member such as a removal rod also as the insertion moving means or by driving it with another moving means.

According to the insertion / extraction device as described above, the engaging portion and the engaging member are provided on either or both of the upper plate and the lower plate, so that the vicinity of the inlet of the constant temperature bath or the like which constitutes the burn-in device. Since the obstruction such as the insertion mechanism which has been conventionally provided for inserting the burn-in board is eliminated, the transfer of the board carrier into the constant temperature bath becomes easy and safe.
Also, the constant temperature bath is downsized accordingly. Further, since it is not necessary to widen the loading interval of the burn-in boards unlike the conventional device in which the engaging pins and the like are provided for all the burn-in boards, it is possible to reduce the height dimension and simplify the structure. .

Further, since the rear end of the burn-in board is received by the receiving plate and both ends of the burn-in board are not projected from the board carrier as in the conventional case, the burn-in board can be easily aligned and positioned and the burn-in board in the board carrier can be easily aligned. The stability is improved and the transportability is improved.

Since the burn-in board is received by the receiving portion at the rear end of the board carrier and is inserted into the connector, the accurate insertion direction is maintained, necessary and sufficient insertion force is uniformly applied, and the tip portion of the engaging portion is arranged. By improving the accuracy of the insertion amount by making it possible, the insertion of the burn-in board into the connector can be ensured and the contact error can be completely prevented.

That is, the problems of the various conventional burn-in board insertion / removal devices are comprehensively solved, and the reliable insertion operation of the burn-in board, the simplification of the structure, the downsizing, the cost reduction, and the usage state of the board carrier in the burn-in test system are performed. And various applicability to automation can be obtained.

If the engaging portion, the engaging member, the moving means and the engaging on / off means are provided corresponding to the upper member and the lower member, the board carrier can be moved uniformly as a whole. As a result, the insertion of the burn-in board into the connector becomes more reliable.

In the invention of claim 2, since the engaging portion is a hole and the engaging member is a claw-shaped member having a claw that is inserted into and removed from the hole, the board carrier has an upper member or a lower member. It is not necessary to have a shape that protrudes from the member as the engaging portion. As a result, it is possible to suppress the overall height of the board carrier, downsize it, and improve the handleability.

According to the third aspect of the invention, the cam mechanism for enabling the engaging and disengaging operations corresponding to the movement of the engaging member by the moving means is engaged and disengaged. A drive mechanism other than the drive device is not required. As a result, the burn-in board can be inserted by operating only the moving means, the operation and control can be extremely simplified, and the reliability and reliability of the operation can be improved.

According to the fourth aspect of the present invention, there is provided a removing member coupled to the moving means so as to remove the burn-in board from the connector when the moving means moves the engaging member in the removing direction. Since the support shaft that constitutes the cam mechanism is attached to the removal member, in addition to the above, the insertion / extraction mechanism is integrated and only one type of moving means is operated to perform all the operations of inserting / removing the burn-in board connector. Can be made.

Further, since the engaging portion and the removing member are all arranged on the insertion side of the board carrier, the occupied space can be reduced and the arrangement can be rationalized. Further, the distance of the portion moved by the moving means can be shortened, and the amount of insertion of the burn-in board into the connector can be accurately determined. As a result, the insertion / removal operation can be rationalized and simplified, and the operability and reliability of the device can be further improved.

[Brief description of drawings]

FIG. 1 is a side view of the inside of a thermostatic chamber equipped with an insertion / extraction device to which the present invention is applied, in which an upper half shows an inserted state and a lower half shows an extracted state.

FIG. 2 is a front view of the inside of the constant temperature bath, which is divided into upper and lower parts corresponding to the upper and lower parts of FIG.

FIG. 3 shows a configuration example of a board carrier including the insertion / extraction device, where (a) is a top plan view and (b) is a side view.
In (a), the state under the top plate 11 is shown in the upper half.

FIG. 4 is a plan view showing an upper right portion of the insertion / extraction device.

FIG. 5 is a plan view showing a lower right portion of the insertion / extraction device.

FIG. 6 is a side view showing the structure and operation of the lower claw member portion of the insertion / extraction device.

7A to 7C show structural examples of a burn-in board, FIG. 7A is a plan view, FIG. 7B is a front view, and FIG. 7C is a partial view of a gasket portion and a stay portion.

8A to 8D are respectively a front view of the board carrier, a vertical sectional view of a groove portion of a side plate, a lateral sectional view showing a part of the side plate cut on a connecting rod, and a lid and a burn-in. It is a longitudinal cross-sectional view when it is combined with a board.

9A to 9C show a part of the board carrier, FIG. 9A is a perspective view of a side plate upper portion, FIG. 9B is a front view of an upper lid portion, and FIG. 9C is a lower lid support. It is a front view of a part.

FIG. 10 is a side view showing the structure and operation of another example of the engagement on / off means.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Board carrier 2 Burn-in board 2a Rear end 3 Claw member (engaging member) 3a Claw 3c Cam surface (engaging on / off means, cam mechanism) 4 Cylinder device (moving means) 5 Support pin (engaging on / off means, cam mechanism, Support shaft 6 Cam follower (engagement on / off means,
Cam mechanism) 7 Removal bar (removal member) 8 Sensor contact plate 10 Claw insertion / removal device (engagement member, engagement on / off means) 10a Claw (engagement member, claw) 10b Main body part (engagement on / off means) 11 Top plate (Upper member) 12 Bottom plate (lower member) 11a, 12a Engagement holes (engaging portion, hole portion) 13 Receiving plate (receiving portion) 100 Burn-in device 101 Connector Y ₁ insertion direction Y ₂ Removal direction

─────────────────────────────────────────────────── ─── Continuation of the front page (58) Fields surveyed (Int.Cl. ⁷ , DB name) G01R 31/26 G01R 31/28-31/3193 H01L 21/66

Claims (4)

(57) [Claims] 1. An insertion / extraction device for inserting and removing a burn-in board loaded on a board carrier having an upper member and a lower member forming a structure into a connector of a burn-in device, the insertion of the burn-in board. A receiving portion fixed to the board carrier so as to receive a rear end in a direction, an engaging portion provided on at least one of the upper member and the lower member, and the engaging portion can be engaged. An engaging member, a moving means capable of reciprocating in the direction of inserting and removing the engaging member, and the engaging member engaging with the engaging portion in the forward movement corresponding to the reciprocating movement and returning. An engaging and disengaging device that enables the engaging member to move so as to be disengaged when moving. 2. The engagement member is a hole, and the engagement member is a claw-shaped member having a claw that is inserted into and removed from the hole. Insertion / extraction device. 3. The engagement on / off means includes a support shaft rotatably supporting the engagement member so that the operation of the engagement member is possible, a cam surface provided on the engagement member, and the support shaft. The insertion / extraction device according to claim 1, comprising a cam mechanism having a cam follower for guiding the cam surface. 4. A removing member coupled to the moving means for removing the burn-in board from the connector when the moving means moves the engaging member in the removing direction. The insertion / extraction device according to claim 3, wherein the insertion / extraction device is attached to the extraction member.