JPH065260B2 - IC handler - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial application] The present invention relates to an IC handler, and more particularly, to an IC handler in which jamming and pin bending are less likely to occur.

[Prior Art] FIG. 13 is a schematic diagram showing a basic configuration of a conventional IC handler.

In the figure, A is a loader unit that stores uninspected ICs and sequentially sends them out. In general, IC magazines 1 are stacked. Inside the IC magazine 1, individual ICs are continuously arranged.

The ICs in the IC magazine 1 are sequentially guided to the preheat treatment section B by their own weight by the guide rails and slide down to be pretreated to a temperature that meets a predetermined inspection condition. Pretreatment in this case includes preheating and precooling.

The IC that has passed through the preheat treatment section B is similarly guided by the guide rails and sequentially descends vertically downward by its own weight while being inspected by an automatic measuring device (inspection head, not shown).

Then, the IC that has completed the inspection slides down to the unloader section D by its own weight. On the way, the sorting section E sorts and sorts the plurality of lanes arranged in parallel according to the inspection result. A plurality of rows of magazines 1a, 1b, 1c, 1e, which are set in the unloader section D by sliding down by their own weight,
It is stored in any one of 1f, 1g, and 1h.

[Problems to be solved] In the case of the free fall method in which the guide rail slides down by its own weight and descends as described above, the IC itself is held down for heating processing and measurement processing, and the flow thereof is reduced. Since it is necessary to stop or change the direction of the IC itself according to the falling direction, there is a drawback that the IC pin is easily bent or jammed. Further, when a plurality of ICs are inspected in parallel because of the guide rails, it is necessary to arrange guide rails corresponding to the number in parallel, which makes it difficult to control timings of ICs flowing in parallel.
There is a drawback that the device becomes large.

Therefore, in order to avoid such a situation, an IC transfer method using a horizontal forced transfer mechanism may be considered. But IC
In this case, since the number of terminals is large and the pitch between the terminals is narrow, it becomes difficult to carry out the handling process of bringing the terminals of the IC into contact with the contacts of the measuring section from the horizontal transport mechanism. Moreover, if the ICs are conveyed horizontally for processing, the efficiency of the inspection processing is lowered, and the processing performance is lower than that of the free fall method. When a plurality of ICs are conveyed in parallel at the same time, mutual positional deviation becomes a problem, and it becomes necessary to supply the ICs to the measuring section using an accurate positioning mechanism. Then, there is a drawback that the IC supply mechanism to the measuring section becomes complicated and that part becomes large.

[Object of the Invention] The present invention solves the problems of the prior art as described above, and each terminal of a large number of ICs can be accurately brought into contact with each of a plurality of contacts of a measuring unit. It is an object of the present invention to provide an IC handler whose measuring mechanism system can be miniaturized.

[Means for Solving the Problem] The feature of the IC handler of the present invention for achieving such an object is that a plurality of ICs are stored in a bucket by using a horizontal forced transfer mechanism having a bucket, and the bucket is intermittently fed. Then, a plurality of ICs are conveyed to the measurement unit, and the measurement unit is provided with a plurality of contacts arranged in contact with the terminals of each of the plurality of ICs. It is arranged facing the horizontal transfer mechanism section and above the transfer path. In the horizontal transfer mechanism section, a plurality of IC pushing mechanisms corresponding to the plurality of contacts are provided on the opposite side of the plurality of contacts across the transfer path. A plurality of IC storage openings are arranged side by side so as to correspond to the respective positions of the plurality of contacts, each of which is a hole for accommodating the IC and penetrating vertically. The ICs housed in the IC housing openings on the carrier path corresponding to the plurality of contacts are ejected to the measuring unit by the plurality of IC pushing mechanisms and the ICs are inserted into the plurality of contacts, respectively, when the conveyance of the flat carrier mechanism unit is stopped. It is worn or pressed to make electrical contact.

[Operation] As described above, since the storage opening for accommodating the IC that penetrates the bucket is provided in association with the plurality of contact positions of the measurement unit, the positioning of each IC with respect to the contact can be performed at the time of supplying the IC, and Since a plurality of ICs are simultaneously transported horizontally by a push-up mechanism to simultaneously push up a plurality of ICs inside the bucket from the lower side at the contact position of the measurement unit to bring the ICs into contact with a plurality of contacts, respectively. The IC simultaneous supply mechanism can be miniaturized, each storage opening of the bucket serves as a guide for pushing up the IC, and each IC having a large number of terminals can be simultaneously moved to a plurality of positions without being displaced in the transport direction. The contact can be made accurately.

As a result, a handler that hardly causes jamming or IC pin bending can be realized, and since the handler is mounted and transported almost horizontally, even if ICs must be processed in parallel. However, you only need to store the ICs in parallel in the storage opening of the bucket.
A plurality of ICs can be inspected at the same time, and the size of the device itself does not need to be so large.

[Embodiment] An embodiment of the present invention will be described in detail below with reference to the drawings.

FIG. 1 is an external view of an IC handler of one embodiment to which the present invention is applied, and FIG. 2 is a plan view showing the upper part removed, and FIG.
The figure is a side sectional view thereof, and FIGS. 4 (a) and 4 (b) show I thereof.
C is an explanatory view of the storage rack, FIGS. 4 (c), (d) and (f) are explanatory views of a support mechanism of the component dropout prevention pin mounted on the rack, and FIGS. 5 (a) and 5 (b) are the same. 6 is an explanatory view of the loader unit, FIG. 6 is an explanatory diagram of a handling operation for supplying an IC from the loader unit to the bucket transfer unit, and FIGS. 7A and 7B are side cross-sectional views and front cross-sectional views of the bucket transfer mechanism. FIGS. 8 (a), (b) and (c) are explanatory views of the bucket, FIG. 9 is an explanatory view of the chain thereof, and FIG.
FIG. 10A is an explanatory view centering on a holding pin of an IC pushing mechanism that grips an IC and supplies it from the bucket transport mechanism to the measuring unit, and FIG. 10B is an explanatory diagram of the pushing pin.
FIG. 0 (c) is an explanatory view of a direct-acting cam moving mechanism in an IC push-up mechanism that grips parts of different sizes and supplies them to the measuring section, and FIG. 10 (d) is an explanatory view of the shift mechanism thereof. FIG. 11 is an explanatory view of the classification section, and FIGS. 12 (a) and 12 (b).
And (c) are explanatory views of the extrusion mechanism of the classification unit. In these figures, the same parts are designated by the same reference numerals.

1 to 3, 10 is an IC handler, 2 is an IC loader section thereof, 3 is an IC loader section to IC
Of the bucket transport mechanism unit 4 for storing and transporting ICs, and 4 is a thermostatic bath enclosing the transport path of the bucket transport mechanism unit 3, and 5 is a component supplied from the bucket transport mechanism unit 3 Measuring unit for inspecting IC, 6 is IC after inspection
Is received from the bucket transport mechanism unit 3 and is transported substantially horizontally, and is stored in the rack of the storage unit 7 in accordance with the inspection result,
Reference numeral 8 denotes a rack that is mounted on the loader unit 2 and the storage unit 7 and that stores the inspection component (here, IC), and 5a is a test head that is provided on the measurement unit 5 and that measures the electrical characteristics of the IC.

Here, the loader unit 2 includes the rack mounting table 21 and the linear feeder 2 as shown in FIG. 2 and FIG.
2, the pickup arm 23 (see FIG. 6) and the rack mounting table 2 provided below the rack mounting table 21.
IC equipped with an elevator mechanism 24 for vertically moving 1 and a rack mounting state detection / positioning guide mechanism 26
Multiple load mechanisms 20 are installed side by side (three in the figure),
The rack 8 is mounted on each rack mounting table 21 of each IC loading mechanism 20.

As shown in FIGS. 4 (a) and 4 (b), the rack 8 includes a plurality of IC storage grooves 81, 8 that are stacked in a plurality of stages in the vertical direction.
1, ... Are continuously formed, and each IC is formed in each groove 81.
(Here, as an example, a PGA type IC and a hand lit IC) 9 are housed in a form that they are continuously arranged in the groove direction and the vertical direction with their pins facing upward.
Moreover, each IC pops out on the ceiling surface of each groove 81,
It is located at a height that does not conflict with the ICs arranged on the front side. That is, the height is 2 times the height of the stored IC.
It is smaller than double.

Then, the pushing claw 82 shown in the sectional view of FIG. 5 (b) is inserted into the groove 81 by the claw feeding mechanism 83, and moves horizontally along the groove 81 at a pitch corresponding to the width of one component. , Press IC9 arranged at the end, and set IC9 to 1
Move only the number of pieces to the left side of the drawing and move. Here, the push-out pawl 82 and the pawl feed mechanism 83 constitute a push-out mechanism for pushing out the IC 9 from the groove 81. The IC 9 is pushed along the groove 81 from one side (left side in the drawing) of the groove and the other side of the groove is pushed. It is pushed out from the side (right side of the drawing). The groove 81 in which the claw 82 moves is positioned at a position that coincides with the feed surface of the rail 22a of the linear feeder 22.

The movement control for one pitch of the push-out pawl 82 is performed each time the push-out pawl 82 is sent out by a control signal from a control unit (not shown). Further, as shown in FIG. 5B, the pawl feeding mechanism 83 holds the crank-shaped pushing pawl 82, and
As shown in FIG. 6A, it is driven by a pulley 86 via a belt 85 and slides on a horizontal shaft 84 to move horizontally.

Here, the rail 22a of the linear feeder 22 is provided adjacent to the component outlet of the groove 81 into which the pushing claw 82 of the rack 8 is inserted. Then, the IC 9 extruded from the groove 81 of the rack 8 receives the rail 22a, and the IC 9 is pushed to the rail 2a.
Transfer to the pickup arm position P at the other end of 2a.
This linear feeder 22 has a rhombus shape, and its pillar is formed by a leaf spring, and has a predetermined frequency, for example, several + Hz.
It vibrates diagonally at several hundred Hz.

Therefore, one of the ICs 9 supplied to the bucket transport unit 3 side is pushed onto the rail 22a of the linear feeder 22 in accordance with the movement of the pushing claw 82 by one pitch,
The linear feeder 22 transfers the linear feeder 22 to the pick-up arm position P at its tip. As a result, the delivered IC 9 is set at the leading edge component pickup standby position.

Here, the rack 8 is detachably attached to the rack mounting table 21, and the rack mounting table 21 is vertically moved by the elevator mechanism 24, whereby the rack 8 is vertically moved and all the ICs 9 in the groove 81 are discharged. Then, the groove 81 on the upper side is sequentially positioned from the groove 81 on the lower side to a position where the bottom surface thereof coincides with the feed surface of the rail 22a of the linear feeder 22. Reference numerals 25 and 25 denote component drop-out preventing pins vertically extending through both ends of the rack 8, which are suspended and held, and their tip ends are located at positions where they coincide with the surface of the rail 22a of the linear feeder 22. The state where the carved groove 81 is not blocked (the part falling prevention pin 25
The length of each corresponds to).

FIGS. 4 (c) to 4 (f) show the suspension holding mechanism for the component slip-out prevention pins 25, 25, and FIG. 4 (c) is a linear view seen from the back side of FIG. 4 (a). It is a partial front view of the half on the feeder 22 side, the same figure (d) is the partial plan view, the same figure (e) is the longitudinal sectional view, and the same figure (f) is the partial longitudinal sectional view.

When the rack 8 is mounted on the IC load mechanism 20, the component drop-out prevention pin 25 has an opening provided in the hook portion 270 of the hook plate 27 in a relationship as shown in FIG. 4 (e). 270a is fitted and hooked on the hook plate 27 and held. The hook plate 27 is fixed to the shaft 29a of the rotary actuator 29 fixed to the pedestal 272, and is normally positioned in parallel with the rack 8 (see the dotted line portion in FIG. 4 (d)). According to the control signal from the above, it is rotated about 25 degrees in the clockwise direction and is inserted between the upper surface of the rack 8 and the lower flange 252 so that the opening 270a has the component drop-out prevention pin 2.
5 is fitted into the hook receiving portion 251.

As a result, the collar 252 engages around the opening 270a,
As a result, the component fall prevention pin 25 is held. Then, when the rack 8 descends, as shown in FIG. 4 (f), the collar 252 is fitted into the circular groove 253 provided around the upper surface of the opening 270a of the hook portion 270, so that the component slip-out prevention pin 25 The center is located at the center of the opening 270a, and thereby the center of the pin through hole 8a of the rack 8 is located. By doing so, even if the length of the component drop-out prevention pin 25 becomes long, the center of the component drop-out prevention pin 25 can be held in the center of the through hole 8a up to the groove at the bottom, and the pull-out / insertion can be performed. It will be easy.

On the other hand, when the control signal from the control unit is stopped, the drive of the rotary actuator 29 is stopped, and the hook plate 27 is rotated and returned to the parallel state with the original rack 8. At this time, the collar 252 comes off the opening 270a, and the component drop-out prevention pin 25 falls to the uppermost surface of the rack 8 and penetrates all the grooves 81, which is the state shown in FIG. 4 (e). .

By the way, a guide plate 273 which is guided by the hook plate 27 is fixed to the pedestal 272, and a tip end portion of the guide plate 273 is brought into contact with a substantially middle portion of the hook plate 27 to guide rotation of the hook plate 27. Has become. Further, the pedestal 272 is supported by the two columns 271, 271, which are fixed to the base frame 28. This is at a position slightly lower than the upper end of the rack 8, and in FIG. 4 (c), the rack 8 is lowered by one pitch corresponding to the groove height. 261 and 262 shown in FIGS. 4 (c) and 5 (a) are positioning guide rollers when the rack 8 is mounted on the IC loading mechanism 20.

By the way, as shown in FIG. 4 (c), the hook portions 270 of the hook plate 27 are provided in two stages, one above the other,
The upper hook portion 270 is used when hooks having different groove heights are attached. This is to hold the component drop-out prevention pin 25 at a height different from the current height, and the upper collar 252a of the component drop-out prevention pin 25.
The upper hook portion 270 is fitted to the hook receiving portion 251a of the above and the component drop-out prevention pin 25 is held.

On the other hand, the rack mounting state detection / positioning guide mechanism 26
Has two positioning guide rollers 261 and 262 arranged at a predetermined interval, and these positioning guide rollers 261 and 262 are pinned to the tips of the leg portions 263a and 264a of the L-shaped frames 263 and 264, respectively. It is rotatably attached via a shaft. Then, the pillar portions 263b and 264b of the L-shaped frames 263 and 264 are rotatably supported through pins so that the central portions thereof can be rotated by the brackets 211 and 211 fixed to the back surface side of the rack mounting table 21. The pillar portions 263b and 264 that are worn on the opposite side of the roller shaft attachment side.
A hole is provided on the tip side of b facing the rack mounting table 21, and compressed springs 212 and 213 are mounted between the hole and the hole of the rack mounting table 21.

The spring 212 urges the positioning guide roller 261 to rotate counterclockwise in the drawing. Further, the positioning guide roller 262 is moved by the spring 213.
It is biased to rotate clockwise in the drawing. As a result, the positioning guide rollers 261 and 262 can move up and down.

By the way, the positioning guide roller 261 projects from an opening 214 provided in the rack mounting table 21, as can be understood from a partial cross section of the rack mounting table 21. Therefore, the positioning guide roller 261 is
It moves up and down through the opening 213 with respect to the rack mounting table 21, and moves back and forth. This also applies to the positioning guide roller 262, which is not shown as a partial sectional view.

The positioning guide roller 261 is the positioning guide roller 2
The difference from 62 is that the lever 264 for detection of depression is provided on the pillar portion 263b of the L-shaped frame 263.
It is fixed so as to be perpendicular to 3b. The lever 264 is an L-shaped frame 2 generated when the positioning guide roller 261 is pushed down by the rack 8.
In order to expand the rotation of 63, a bent rising portion 264a on the lower tip side thereof has a hole, and the light from the light emitting element is passed through this hole, so that the light is emitted from the photo sensor. Detecting the state in which the rack 8 is not mounted, and when the rack 78 is mounted, the hole of the bent upright portion 264a is displaced to block the light from the light emitting element and thus the light receiving element side does not receive light. The rack mounting state is detected by this.

By the way, as shown in FIG. 5B, the positioning guide rollers 261 and 262 each have a mountain shape whose peripheral surface has a symmetrical inclined surface, and a trough provided on the bottom surface of the back surface of the rack 8. Mating 84. The valley groove 84 has symmetrical sloping surfaces 84a and 84b, and the sloping surfaces 84a and 84b are the positioning guide rollers 261 and 262.
By being fitted to the angled inclined surface of, the roller 261 can be accurately positioned without shifting. Further, as shown in FIG. 5A, the roller 265 is rotatably attached to the rack mounting table 21 so as to come into contact with the rear end of the rack 8, and the front end of the rack 8 has a claw. 266 bites in and is pressed down. Therefore, the rack 8
Is attached from the right side of the drawing and pushed in to the left side,
The positioning guide rollers 261 and 262 guide and position them, and the movement thereof is stopped by the claws 266, the rear portion of the rack 8 is dropped along the rollers 265, and the rails 22a of the linear feeder 22 are moved forward and backward and left and right. It is fixed and positioned so that it does not move.

The IC loading mechanism 20 is composed of such a rack 8 and its elevator mechanism 24, a pawl feeding mechanism 83, and a rack mounting state detecting / positioning guide mechanism 26, and three of them are arranged in parallel in the loader section 2 here. In the initial state, I
In the rack 8 of the C-load mechanism 20, the bottom surface of the lowest groove 81 is aligned with the upper surface of the rail 22a, and when the IC is delivered from the groove 81 and the groove 81 becomes empty, the grooves 81 are stacked. It can be lowered by one pitch. That is, when the IC in the groove 81 of a rack 8 becomes empty,
The rack 8 is moved downward by the elevator mechanism 24, and the bottom surface of the groove 81 above it is positioned at the position of the upper surface of the rail 22a.

Now, as shown in FIGS. 6 and 7 (a), the IC 9 that has been sent from the rack 8 and is waiting at the tip of the rail 22a of the linear feeder 22 is in a state where the claw 231 of the pickup arm 23 is opened. It is gripped by descending and being closed, and is moved on the rail 22a to each storage position of the bucket 31 of the bucket transport mechanism unit 3 and is sequentially carried. Then, the claws 231 are opened and the ICs 9 are stored in the storage openings 3 respectively.
Set to 2. Here, four storage openings 32 are provided in one bucket 31, and as shown in FIG. 7A, four ICs 9 are sequentially stored in the storage opening 32 from the end of the bucket 31. .

Therefore, four ICs 9 are intermittently delivered from the rack 8 one by one at a timing matched with the bundling time of the pickup arm 23, conveyed to the standby position P at the tip of the linear feeder 22, and sequentially picked up by the pickup arm 23. The four ICs 9 are picked up one by one from the feeder 22 and are individually conveyed to the bucket 31.

232 is a spring for urging the claw 231 of the pickup arm 23 in a closing direction, 233, 233 and 234, 234 are cam surfaces and rollers for rotating the claw 231 in an opening direction, and 235, 235 are , The rotation fulcrum of each of the two claw pieces of the claw 231.

When four ICs are set in one bucket 31 in this way, the bucket 31 moves forward by one, and the next empty bucket 31 is positioned at the IC supply position corresponding to the linear feeder 22. Here, an IC loading mechanism 20
When all the ICs of the rack 8 are emptied, the elevator mechanism 24 is lifted and controlled in response to a control signal from the control unit, the rack 8 moves upward and returns to the original initial state, and the pickup arm 23 moves to the next state. The rack 8 of the IC load mechanism 20 is moved to the position of the IC load mechanism 20 to supply the IC, and the empty rack 8 is removed. And the new rack 8 full of ICs was removed I
It is newly attached to the C load mechanism 20.

By the way, this bucket 31 is shown in FIGS. 7 (a) and 7 (b).
As can be seen from the above, a plurality of them are connected with endless chains 32a, 32b at both ends at a predetermined interval. As shown in FIG. 3, the chains 32a and 32b are attached to the sprocket 3 at both ends of the bucket transport mechanism 3.
3a and 33b are bitten and sent to be sequentially transported. That is, this constitutes a chain transmission mechanism. Therefore, the bucket 31 includes the chains 32a, 3
The sprocket 33 on the front side is supported by being bridged over 2b.
a is intermittently driven by the motor 34 via the timing belt 35, and each bucket 31 is intermittently fed at a predetermined pitch.

Here, the bucket 31 is made of a metal or the like having good thermal conductivity, such as aluminum, and its shape is a square rod shape, as shown in FIG. One storage opening 32 is provided at predetermined intervals, and is fixed to the chains 32a and 32b at both ends thereof via screw pins, so that the screw holes 311 and 311 are provided.
312 and 312 are opened on both side surfaces. The bucket 31 is fixed to each of the links 321 that form the chain 32a (32b) shown in FIG. 9 in the screw holes 311 and 312, and is stored in the storage surface with respect to the conveying surface by a screw pin via the bracket 322. The part 32 is fixed so that it is positioned vertically.

The storage opening 32 is indicated by I in FIG. 8A as seen in FIG. 8B.
-II sectional view and II of the same notice (a) seen in Fig. 8 (c)-
As shown in the II cross-sectional view, a double stepped depression 310 and a cross groove 315 into which the claw 231 of the component handling arm is inserted are provided on both sides of the depression 310. 315 vertically penetrates the bucket 31.

The upper dent 313 and the lower dent 314 of the dent 310 are formed with openings corresponding to the planar shapes of components having different sizes, and the respective openings extend to the surface. As shown in FIG. 7 (b), these openings are attached to the chains 32a and 32b so that the openings face upward. Then, different types of ICs are housed in either the upper recess 313 or the lower recess 314.
Specifically, in this embodiment, the lower depression 314 is S
The size is large enough to accommodate an OJ type IC, and the recess 313 in the upper stage serves as a storage portion having a size to accommodate a PGA type IC, particularly a hybrid IC.

The cross groove 315 penetrating the depressions 313, 314 is provided so that the centers of the cross points substantially coincide with the centers of the depressions 313, 314, and a pressing pin 37 described later penetrates the bucket. Cross groove 31
5. From below, the IC 9 to be measured is pressed and lifted, and then it exits upward. It becomes a holding pin passage hole for that.

Now, as shown in FIG. 3, in the bucket transport mechanism 3, the bucket including the chains 32a and 32b is housed in the constant temperature bath 4, and the bucket provided in the bottom of the constant temperature bath 4 is heated by the heater 41. To be done. Therefore, the IC 9 stored in the bucket 31 is heated to a predetermined temperature during this feeding process.

Then, as shown in FIG. 7B, when the bucket 31 is fed below the measuring unit 5 and the bucket 31 is positioned on the measuring unit 5, the driving of the sprocket 33a is stopped in accordance with the stopped state of the intermittent feeding. In this state, the pin push-up mechanism (fixed to the fixed frame 38 and hidden in the fixing frame 38, which is arranged below the bucket 31 corresponding to the measuring unit 5 in the initial state during the stop period, is hidden in FIG. 7B). (See FIG. 10 (a) to (d)).
7 (indicated by the dotted line) is driven upward to move each storage opening 32.
Then, the IC 9 is grasped and pushed up to the measuring section 5 side by pushing through.

The IC push-out mechanism is composed of the pin push-up mechanism and the pressing pin 37. Four of the IC push-out mechanisms are located below the respective storage openings 32 and arranged side by side. The tip chuck portion has the same shape as the pick-up arm claw 23.

Here, the contact unit 51 (or socket 51) fixed to the measuring unit 5 from the ceiling side to the lower side.
Are provided so as to correspond to the positions of the respective storage openings 32, and as shown by the dotted line in FIG. 7 (b), the IC 9 pushed up by the pressing pin 37 comes into contact with the contact of this contact unit to cause electrical conduction. Connected. Then, the test head 5a coupled to the contact unit 51 performs measurement processing of the IC 9 pushed up and brought into contact.

10 (a) to 10 (d) are explanatory views of the holding pin 37 and the pump pushing-up mechanism of the IC pushing mechanism, and particularly, ICs having different sizes (width viewed from the plane) are supplied to the measuring unit 5. FIG. 3 is an explanatory view of two driven joint mechanisms each having a holding pin 37 for holding ICs of different types and a linear cam mechanism for moving the driven joint mechanism up and down.

As shown in FIG. 10A, the pressing pin 37 includes a chuck 371, a pressing pin 372, and a guide pin 373, and the chuck 371 is composed of a claw similar to the claw 23. Reference numerals 371a and 371a denote claw pieces of the chuck 371, which rotate about the fulcrum pins 374 and 374. 375 is a claw piece 371a and 371.
It is a spring for urging a in the closing direction, and is laid between these in a stretched state.

Each claw piece 371a is provided with rollers 376 and 376 on the side opposite to the IC grip side with the fulcrum pin 374 in between.
This engages with the cam surface 377a of the cam plate 377, and normally the tip of the claw piece 371a is in an open state.
Then, as the cam plate 377 rises, the roller 37
6, 376 fall into the opening cam surface 377b, the pawl pieces 371a are rotated about the fulcrum pin 374 by the spring 375 in the direction to close each other, and as shown by a chain line, IC9
Hold a. The IC9a is the IC9 described above.
The IC has a smaller width and is housed in the recess 314 in the lower step of the stepped groove of the bucket 31.

Here, when the cam plate 377 is lowered, the reverse operation is performed, and the claw pieces 371a rotate in the mutually opening directions and return to the illustrated state.

On the other hand, the pin push-up mechanism is a linear cam shown in FIGS. 10 (c) and 10 (d), which engages with the driven joint mechanism 361 shown in FIG. 10 (b) and the rollers of the driven joint mechanism 361 as driven joints. Mechanism 3
And 60. The former pressing pin 37 is provided on the upper side of the follower mechanism 361, and the former chuck 37
The cam plate 376 arranged on the lower side of 1 is moved up and down by the driven joint 362 having the rollers 362a.

Reference numeral 363 denotes a push-up plate that pushes up the pressing pin 37 having the chuck 371 and the pressing pin 372, and has an opening 363a formed in the center thereof.
A shaft 363b is bridged over 63a, and a follower joint 362 is coupled to the sleeve 363c which fits on the shaft 363b and slides up and down using the shaft 363b as a guide. Follower 3
62 is an opening 363a through this sleeve 363c.
Is movably supported in the above range and is engaged with the linear cam via a roller 362a fixed to the lower side of the linear cam so that the linear cam moves up and down in response to the reciprocating motion of the linear cam.

On the other hand, on the fixed frame 38 shown in FIG. 7B, a plate 382 has a shift mechanism 369 which will be described later (FIG. 10D).
The guide shaft 381 is fixed to the plate 382 via a bracket 380 so that the guide shaft 381 can be shifted. The push-up plate 383 is
A sleeve 363b fitted to the guide shaft 381 is integrally formed, and is supported movably up and down via a sleeve 363b that slides using the guide shaft 381 as a guide. The push-up plate 383 is provided on the opposite side of the sleeve portion 363b. The follower 364 is fixed to the follower 36.
4, the push-up plate 363 is moved up and down. The driven joint 364 is provided with a roller 364a on its lower side, and engages with the linear cam via the roller 364a, whereby the push-up plate 36 is responsive to the reciprocating motion of the linear cam.
3 moves up and down.

The driven joint mechanism 361 shown in FIG.
Two chucks 371 are provided as the first and second follower mechanism 361, and a holding pin 37 provided with a chuck 371 and a push-up pin 372 of a size that holds the IC according to the size of the IC is fixed. Then, the first and second driven joint mechanisms 361 are alternately positioned in the state of FIG. 10 (a) by the shift mechanism 369 (see FIG. 10 (d)). The reference numerals shown in parentheses as 362b and 364b are the second ones for convenience of description on a direct acting cam described later.
It means the time of the follower 361.

On the other hand, the direct acting cam mechanism 360 is a direct acting cam mechanism that receives the first and second driven joint mechanisms 361 and 361 as shown in FIG. 10C, and is a rectangular plate direct acting cam. Body 3
On the upper side of 68, for example, the storage opening 3 of the bucket 31.
A group of direct-acting cam plates 365 that holds the IC 9 of the first size having a large width and is pushed up the contact unit 51 of the measuring unit 5 is fixed in the recess 313 on the upper side of the second stage. Further, on the lower side of the linear motion cam body 368, for example, a second size IC 9a having a width smaller than the first size, which is stored in the lower recess 314 of the storage opening 32 of the bucket 31, is gripped and measured. Contact unit 5 of part 5
A linear motion cam plate group 366 that pushes up to 1 is fixed. The linear cam body 368 of the rectangular plate is fixed to the fixed frame 38.
The two guide shafts 367 fixed to each other are reciprocally moved corresponding to the width of the cam surface. The drive mechanism of the linear motion cam body 368 that reciprocates is not shown.

The direct-acting cam plate group 365 and the direct-acting cam plate group 366 are two plate cams 365, which are provided by vertically shifting two stages.
a, 365b and 366a, 366b, and the upper cam plates 365a and 366a are cams for operating the first and second chucks 371, respectively, to grip the IC9 or IC9a of the bucket 31. And
The lower cam plates 365b and 366b are attached to the chuck 371.
At the same time, the push-up pin 372 is lifted to move the I of the bucket 31.
Push C9 or IC9a up to the contact unit 51,
It is a cam for pressing.

Here, the plate cams 365a, 365b and 366a, 36
6b is a cam surface 36 inclined in the opposite direction to each other.
5c, 365d and 366c, 366d,
The rollers 362a and 364a of the first follower mechanism 361 and the rollers 362b and 364b of the second follower mechanism 361 are
In the initial state, they are located on the lower side of the cam surfaces 365c, 365d and 366c, 366d. Then, these are provided at a predetermined distance so as to be arranged on both sides of the linear cam body 368.

Here, the upper plate cam 365a on the upper side is engaged with the roller 362a of the first chuck 371 that holds the large size IC 9 (as the first size), and vertically moves it. The plate cam 366a on the lower and upper stages is a small IC
9a (as the second size) is engaged with the roller 362b of the second chuck 371, which is moved up and down,
The upper lower plate cam 365b is engaged with the roller 364a of the first follower 364 corresponding to the pushing up of the large size IC 9, and is moved up and down to move the lower lower plate cam 366.
b is the second which corresponds to the pushing up of the small size IC 9a.
It engages with the roller 364a of the follower 364 and moves it up and down.

By the way, the contact unit 51 has a guide shaft 367.
Is located above the roller 362a in the central position of
In the state shown in FIG. 0 (c), the roller 362 at the center is
The first follower mechanism 361 having a is located below the contact unit 51. The linear motion cam main body 368 reciprocates along the position shown in the figure along with the right end so that the rollers 362a and 364a that engage with the upper and lower plate cams 365a and 365b move up and down as the linear motion cam main body 368 reciprocates. When the linear cam body 368 moves to the left from the position shown in the figure, the rollers 362a and 362a and 3
Both 64a and 64a move upward as the linear cam body 368 moves to the left.

At this time, as the rollers 362a and 364a move upward, the first follower mechanism 361 moves upward, and the holding pin 37 shown in FIG. 10 (b) rises accordingly.
Then, the chuck 371 is positioned at the large size IC 9 housed in the housing opening 32 of the bucket 31 at the position of the central flat portion of the plate cam 365a and the plate cam 365b. When the linear motion cam body 368 further moves to the right, as shown in the chuck shown by the dotted line in FIG. 10 (a), the roller 362a is pushed up by the inclined surface of the upper plate cam 365a, and only the follower 362 moves up. Then, the plate cam 377 is pushed up to act in the direction of closing the chuck 371, and the IC 9 in the storage opening 32 is gripped. Further, as the direct acting cam body 368 moves to the right, the driven joint mechanism 361 as a whole further rises and the pressing pin 3 is moved.
The IC 9 electrically contacts the contact unit 51 of the measuring section 5 by means of 7. After this point of contact,
When the test head 5a is in contact, the measurement of IC9 is started.

However, at this time, since the rollers 362b and 364b are located at the left end of the plate cam 366a and the plate cam 366b,
The plate cam 3 on the lower side with respect to the reciprocating movement of the linear cam body 368
66a and 366b are such that their inclined surfaces are in the direction of being separated from the rollers 362b and 364b. Therefore roller 362b
And 364b have no effect of vertical movement, and their operation remains stopped.

When the IC 9 is returned from the measuring section 5, the linear cam main body 368 moves from the left to the right in the drawing in the opposite direction to the first direction.
The follower mechanism 361 of (3) performs the reverse operation to return the IC 9 to the storage opening 32 of the bucket 31 and return to the initial position below the bucket 31.

The above is the push-up operation for the large-sized IC 9, but for the small-sized IC 9a, the linear cam main body 36 is shifted by the shift mechanism 369 shown in FIG. 10 (d) that shifts the linear cam main body 368 and the driven joint mechanism 361.
8 and the driven joint mechanism 361 are in a state of being shifted to the position indicated by the alternate long and short dash line in FIG. 10 (c). This state is shown from the back side in FIG. 10 (d), and FIG. 10 (c).
On the other hand, the arm 385 of the shift mechanism 369 has rotated half a turn (180 degrees) clockwise from the state shown in FIG. 10 (c). As a result, this time, the second follower mechanism 361 becomes the first
It is positioned in the state of FIG. Therefore, the direct-acting cam body 368 reciprocates here based on this state, so that the small-sized IC 9a is supplied to the measuring unit 5.

That is, in the state where it has moved to the position indicated by the alternate long and short dash line,
This time, the second driven joint mechanism 361 is positioned in the central portion corresponding to the lower side of the contact unit 51. Then, the direct-acting cam body 368 reciprocates with the position shown by the alternate long and short dash line in the drawing as the left end. As a result, the rollers 362b and 364b that engage with the plate cams 366a and 366b in the lower upper and lower stages are located at the center of the guide shaft 637 and move up and down in accordance with the reciprocating movement of the linear cam body 368.

Therefore, similarly to the above, this time, the linear motion cam body 368 is
Moves from the position shown to the right, the rollers 362b and 3
64b and the direct-acting cam body 368 move to the right as they move to the right. For subsequent movements, use the IC9
Since it is the same as the supply operation to the measuring unit 5 of, the description thereof will be omitted. At this time, the rollers 362a and 364a are engaged with the plate cam 36.
5a and the left end of the plate cam 365b, the plate cam 365 on the upper side with respect to the reciprocating movement of the linear cam main body 368 is located.
The inclined surfaces of a and the plate cam 365b are in the direction in which they deviate from the rollers 362a and 364a. Therefore 362
There is no vertical movement effect on a and 364a,
The operation remains stopped.

In this way, the second driven joint mechanism 361 can be moved up and down with respect to the small IC, and the second driven joint mechanism 361 and the first driven joint mechanism 361 for the large IC can be switched. Can be used.

By the way, the shift mechanism 369 for performing this switching is the tenth
In the figure (c), as shown by the dotted line, the linear motion cam body 368
Is located on the back side of. Then, as described above, FIG. 10D is a view seen from the rear surface side in the state where the shift mechanism 369 shifts the linear motion cam body 368 to the position of the alternate long and short dash line. As shown in FIG. 10 (d), the rail groove 38 is formed on the rear surface side of the linear cam main body 368.
3 is provided, and the roller 38 is provided in the rail groove 383.
4 and the arm 385 pivotally attached to the tip of the roller 384 is rotated counterclockwise in the tenth direction.
The linear cam body 368 moves to the position indicated by the alternate long and short dash line in FIG.
In addition, the first and second driven joint mechanisms 361 are integrally treated and shifted at the same time. The rotation of the arm 385 is performed by rotating a pulley 386 axially coupled to the arm 385 with a timing belt 387, and by rotating the pulley 386 counterclockwise, the original initial position shown by the solid line in FIG. The linear cam main body 368 and the first and second driven joint mechanisms 361 are simultaneously returned to the positions.

In this way, either the large-sized IC 9 or the small-sized IC 9a is selectively supplied to the measurement unit 5, the measurement unit 5 measures each IC 9 or IC 9a, and the pin push-up is performed when the measurement is completed. When the direct-acting cam mechanism 360 of the mechanism returns, the lowering operation causes the pressing pin 37 to descend, and the connection with the contact unit 51 is released. Then, each IC 9 or IC 9a is returned to the original storage opening 32 of the bucket 31. At this point, the chuck at the tip of the pressing pin 37 is located below the bottom surface of the bucket 31.

After that, the stop period of the intermittent feeding ends, the next feeding state is entered, and the bucket 31 is fed next through the chains 32a and 32b. Then, the next bucket 31 is located below the measurement unit 5, and the next IC 9 or IC 9a is pushed up to the contact of the contact unit 51 to bring its terminal into contact, and the same measurement is performed. In this way, the supply process of the IC to the measuring unit 5 is performed.

Next, the IC 9 or IC 9a for which the measurement has been completed is again stored in the bucket 31 and the four ICs are conveyed together, and when the IC 9 or IC 9a reaches the component pickup position near the sprocket 33a on the front side, the IC 9 or IC 9a shown in FIG. As shown in FIG. 11B and FIG. 11, each of the four ICs 9 is taken out from the bucket 31 by the pickup arm 61 of the sorting unit 6 and conveyed onto the belt 62a. The pickup arm 61 has the same structure as the pickup arm 23, and 611 is its claw.

Here, the work time for the pickup arm 61 to set the four ICs in the storage openings 32 of the bucket 31 and the work time for taking out the four ICs 9 from the storage openings 32 of the bucket 31 are as described above. IC of measuring unit 5
9 is shorter than the time during measurement, and is performed during the measurement of IC9 and while the feeding of the bucket 31 is stopped.

The classification unit 6 includes the pickup arm 61, the belt transport mechanism 62, and a plurality of IC push-out mechanisms 6 corresponding to the number of classifications.
As shown in FIGS. 2 and 11, the belt conveying mechanism 62 has a grooved belt 62a having a groove 62b transversely crossing at right angles to the conveying direction. There is. The IC 9 is housed in the groove 62b of the belt 62a, and the IC pushing mechanism 63 corresponding to the classification is operated at the position of the rack 8 with respect to the IC 9 to extend the pushing pin 63a to guide the groove 62b of the belt. Then, the IC 9 is pushed into the groove 81 of the rack 8. This makes IC
9 are classified according to the inspection result. In this case, instead of the grooved belt 62a, the storage opening 3 of the bucket 31
You may convey using the bucket which has a transverse groove corresponding to the groove | channel of 2. In this case, the bucket is the bucket 31
As in the above, they may be connected by a chain or fixed directly on the belt.

On the other hand, as shown in FIG. 1, a plurality of racks 8 for storing respective ICs for classification are arranged on opposite sides of the plurality of IC pushing mechanisms 63 with the conveyance path of the belt 62a interposed therebetween. Is located. The storage unit 70 includes a storage mechanism 70 (second storage mechanism) similar to the IC loading mechanism 20 of the loader unit 2.
(See the drawing), and each storage mechanism 70 includes a rack mounting table (similar to the rack mounting table 21, not shown).
And an elevator mechanism (similar to the elevator mechanism 24, not shown), and the elevator mechanism moves the rack mounting table up and down. On the rack mounting table of each storage mechanism 70, for example, the racks 8, 8, 8, ... Which are classified according to the result according to the inspection result according to the measurement characteristic such as pass, fail, XX defect, etc. are mounted respectively. ing.

FIG. 12 (a) shows the grooved belt 6 in the classification unit 6.
2 shows an example of a bucket transport mechanism section using a bucket 620 instead of 2a.

As shown in FIG. 12 (a), the bucket transport mechanism unit 60
0 has a bucket transfer path 601 including a bucket 620 connected by a chain, like the bucket 31 of the bucket transfer mechanism unit 3, and a chain transmission mechanism (not shown) that drives this chain. The bucket 620 stores the IC 9 in the opening groove 621 and conveys it.
It is similar to the bucket 31 in that the opening groove 621 is a stepped groove as shown in the sectional view of FIG.
It is different in that the bottom portion 622 is closed, the opening groove 621 penetrates in the longitudinal direction of the bucket 620, and both sides are open, and it is a short shape that accommodates one IC 9.

On the other hand, the IC pushing mechanism 63 of the classification unit 6 pushes the IC 9 into the groove 81 of the rack 8 from above the bucket 620 corresponding to the position of each rack 8, and the pushing operation is performed as shown in FIG. The push-in pins 63a, 63a, 63a, ... Of the IC push-out mechanism 63 shown in FIGS.

The pin advancing / retreating operation of the IC pushing mechanism 63 will be described with reference to FIG. 12 (b).
3b is connected to an advancing / retreating actuator 631 such as an air cylinder or a rotating arm mechanism, and moves back and forth. The push pin 63a has a collar 63 at the center of its shaft.
2 is provided, the rear end 633a of the spring 633 is pushed by the collar 632, and the spring 633 also moves forward with the forward movement of the push pin 63a. The tip side 633b of the spring 633 is
Sleeve 635 fitted to shaft 634 of push pin 63a
Is engaged with. Therefore, when the spring 633 moves forward, the sleeve 635 also moves forward accordingly.

An IC pressing plate 636 is fixed to the front end side of the sleeve 635. The IC pressing plate 636 has a fork shape in which two tips are horizontally broken as seen in a plan view of FIG. 12 (c). is doing. As shown in FIG. 10 (b), a stepped portion 636a extending substantially vertically downward is formed on the rear surface side located closer to the tip end side than the center thereof, and has an L-shape that is turned to the tip end side. ing. On the other hand, a support plate 635a is fixed to the upper side of the sleeve 635, and another sleeve 635b is coupled to the upper side of the support plate 635a, which is the opposite side to the fixed side of the sleeve 635. The sleeve 635b is fitted on the shaft 637 and slides on the shaft 637. The sleeve 635b supports the sleeve 635 so that the sleeve 635 can be moved back and forth (retractable) via the shaft 637. Further, the fixed portion of the advancing / retreating actuator 631 and the rear portion 63b of the pressing pin 63a is also fixed to the sleeve 630 which fits on the shaft 637 and slides. As a result, the push pin 63a is supported by the sleeve 635, the sleeve 630 and the like so as to be able to move forward and backward.

Therefore, when the push-in pin 63a moves forward, the sleeve 635 is guided by the shaft 637 via the spring 633 and moves back and forth. Then, the IC pressing plate 636 moves forward with the IC pressing plate 636 as the leading end, and the IC pushing mechanism 636 moves in accordance with the forward movement.
Is pushed into the opening groove 621 of the bucket 620.
Enter from the side opening. As a result, the IC pressing plate 636
The stepped portion 636a of the above contacts the upper portion of the IC 9 and the side surface on the entry side, and the IC 9 is pressed without rising upward.

In this state, the IC 9 slides in the opening groove 621 of the bucket 620 toward the rack 8 by the step portion 636a as the pushing pin 63a advances. Eventually, it is guided from the opening of the bucket 620 on the rack 8 side to the groove of the guide member 638, and is conveyed to the entrance of the groove 81 of the rack 8 via the groove of the guide member 638. The guide member 638
Has a groove structure similar to that of the bucket 620. However, this differs from the bucket 620 in that it is provided corresponding to the rack 8 and is fixed.

In this way, the pressing plate 63 together with the pressing pin 63a
6 holds the IC 9 and slides the IC 9 toward the rack 8 side, and when the holding plate 636 reaches the position before the entrance of the rack 8 (the state indicated by the chain double-dashed line), the sleeve 635b supports the shaft 637. Then, this serves as a stopper, and the forward movement of the pressing plate 636 is stopped. After that, when the push pin 63a further advances, only the push pin 63a moves forward while the spring 633 is compressed, and the push pin 63d fixed to the tip of the flange 63c of the push pin 63a moves forward to advance the step portion 63 of the pressing plate 636.
The IC 9 held by 6a is pushed into the groove 81 of the rack 8. Here, the push pin 63d also has a fork-like tip-like shape like the pressing plate 636 shown in FIG. 12 (c).

In this way, when the IC 9 is pushed into the groove 81 of the rack 8 and the pushing of the IC 9 is completed, the advancing / retreating actuator 631 enters the retracted state, the push pin 63a begins to retract, and first, the push pin 63d retracts so that the rack 8 moves. The push pin 63d goes out from the groove 81 to the position before the entrance of the rack 8 (the state shown by the chain double-dashed line), and when it further retracts, the collar portion 63c engages with the front side of the sleeve 635 and the sleeve 635. Retreat. As a result, the sleeve 635 retracts integrally with the push-in pin 63a and returns to the illustrated initial state.

Now, with respect to the IC 9 that has flowed on the bucket 620 according to the inspection result, the corresponding push-in pin 63a is extended in accordance with the timing that has flowed as described above, and the rack 8 corresponding to the inspection result is moved. I came to the position
C9 is pushed and inserted into the corresponding groove 81 of the rack 8.

In addition, in this case, the feeding of the bucket 620 by the bucket conveying mechanism 600 is intermittent feeding in which the movement of the bucket 620 is temporarily stopped at the pushing operation timing, and the pushing is performed at the stopping timing. .

In this way, the ICs 9 are sorted according to the inspection result and stored in each rack 8 of the storage unit 7.

By the way, the tip of the IC pushing mechanism 636 and the push pin 6
As shown in FIG. 12 (c), 3d has a fork shape with two split ends. This is because when the holding plate 636 comes to a position in front of the entrance of the rack 8 (state shown by a chain double-dashed line), the light of the light emitter 640 of the optical sensor arranged on the upper part of the entrance side of the rack 8 is emitted from this IC. This is for allowing light to be received by the light receiving element 641 provided on the guide member 638b through the split at the tip of the pressing plate 636. The light is blocked only when the pressing plate 636 holds the IC 9 to detect whether or not the IC 9 is pushed into the groove 81.

It should be noted that the IC 9a arranged in the lower groove of the bucket 620 in FIG. 12B is a small-sized IC, and when classifying the IC 9a, the push pin 63a is
It is set at the lower position according to the lower groove.

Now, when classifying ICs according to the inspection result in this way, a horizontal transfer mechanism is provided to transfer the parts almost horizontally,
If a storage unit and a component push-out member that pushes out the components for the storage unit in a direction transverse to the transport direction are provided on both sides of the transport path, it can be selectively stored in the storage unit corresponding to the classification in the horizontal transport process. It is possible to sort, and the sorting work can be performed in a horizontal state.

Here, in the rack 8, in the initial state, the bottom surface of the uppermost groove 81 coincides with the position of the stepped portion of the groove of the bucket 620, and when the IC 9 is housed in each groove 81 and becomes full, the rack 8 moves from the bottom to the top. It is pushed up by 1 pit corresponding to each groove stacking pitch. That is, the operation opposite to the operation of the IC load mechanism 20 is performed. Therefore, the IC 9 is inserted in the groove 81 of a rack 8.
When the racks 8 are fully stored, the rack 8 is moved upward by the elevator mechanism and the bottom surface of the groove 81 one below is positioned at the position of the top surface of the bucket 620.

It should be noted that the above-described vertical movement operation control of the elevator mechanism 24 and the elevator mechanism of the storage mechanism 70 and its timing, the control and timing of the opening / closing operation of the pawl 231 of the pickup arm 23 and the pawl 611 of the pickup arm 61, and the pushing-in operation. Control of the forward / backward movement of the pin 63a and timing, and the linear cam mechanism 36 of the IC lifting mechanism.
The retaliation operation control of 0 and its timing are determined and controlled by an electric signal from a control unit incorporating a microprocessor.

By the way, the groove of the rail 22a of the linear feeder 22 is
The bucket 620 has a stepped groove shape similar to that shown in FIG. 12A showing a vertical cross section, and the groove on the upper step has an opening width of a small size corresponding to a large size component such as a hybrid IC. The lower groove has an opening width corresponding to a component such as an SGO type IC. Therefore, by simply replacing the rack 8 with the IC loading mechanism 20,
It is possible to supply different parts to one and to inspect different parts. In this case, the contact unit 51 of the measuring unit is such that these different parts can be connected,
Replace each time according to the measurement parts.

As described above, the transport mechanism of the bucket transport mechanism is not limited to the chain, and a so-called endless winding transmission mechanism such as a belt can be used. In addition to such a winding transmission mechanism, an intermittent feeding mechanism that uses parallelogram links to place the bucket on a horizontal rail and feeds the bucket by pawl may be used. Alternatively, the belt may be provided with pawls to directly feed the bucket or parts intermittently.

In the embodiment, the entire IC transfer mechanism section is arranged in the constant temperature tank, but it is not necessary to arrange the entire IC transfer mechanism section in the constant temperature tank, and at least a part of the transfer path is in the constant temperature tank. I wish I had it. Further, although the heating by the heater is raised as the heat treatment, it goes without saying that the heating may be cooling.

In the embodiment, the pawl feed mechanism feeds the component out from the rack, but this may be achieved by inserting the pin from the outlet along the groove from the opposite side and extruding from the opposite outlet side. The feed mechanism is not limited to the pawl.
Any extrusion mechanism that extrudes a component from a so-called groove may be used.

Further, in the embodiment, a rack having grooves in multiple stages is used, but the number of stages may be one, and any container for storing components may be used, but a so-called upper part is preferable. It is good that parts with a groove that is blocked are not spilled from the container.

[Effects of the Invention] As can be understood from the above description, according to the present invention, storage openings for accommodating ICs, which penetrate the bucket, are provided corresponding to a plurality of contact positions of the measurement unit, and a plurality of buckets are used. At the same time, the ICs are simultaneously conveyed horizontally and the plurality of ICs inside the bucket are simultaneously pushed up by the push-up mechanism from the lower side at the contact position of the measurement unit to contact the plurality of contacts respectively. It will be possible.

As a result, a handler that hardly causes jamming or IC pin bending can be realized, and since the handler is mounted and transported almost horizontally, even if ICs must be processed in parallel. However, you only need to store the ICs in parallel in the storage opening of the bucket.
A plurality of ICs can be inspected at the same time, and the size of the device itself does not need to be so large.

[Brief description of drawings]

FIG. 1 is an external view of an IC handler of one embodiment to which the present invention is applied, and FIG. 2 is a plan view showing the upper part removed, and FIG.
The figure is a side sectional view thereof, and FIGS. 4 (a) and 4 (b) show I thereof.
Explanatory drawing of C storage rack, FIG. 4 (c), (d), (e)
6A and 6B are explanatory views of a support mechanism of the component dropout prevention pin mounted on the rack, FIGS. 5A and 5B are explanatory views of the loader section, and FIG. 6 is a loader section to a bucket transfer section. FIGS. 7 (a) and 7 (b) are side sectional views and front sectional views of the bucket carrying mechanism, and FIGS. 8 (a), (b) and (c) are illustrations of a handling operation for supplying an IC to the Explanatory drawing of bucket, FIG. 9 is explanatory drawing of its chain, 10th
FIG. 10A is an explanatory diagram centering on a holding pin of an IC pushing mechanism that grips an IC and supplies it from a bucket transport mechanism to a measuring unit. FIG. 10B is an explanatory diagram of the pushing pin.
FIG. 10C is an explanatory view of a linear motion cam moving mechanism in an IC push-up mechanism that grips parts of different sizes and supplies them to the measuring section. FIG. 10D is an explanatory view of the shift mechanism thereof.
FIG. 1 is an explanatory view of the classification unit, FIGS. 12 (a), (b) and (c) are explanatory views and a front sectional view of an extrusion mechanism of the classification unit, and FIG. 13 is a conventional IC handler. It is an external view. DESCRIPTION OF SYMBOLS 1 ... IC handler, 2 ... IC loader part, 3 ... Bucket conveyance mechanism part, 4 ... Constant temperature bath, 5 ... Measuring part, 6 ... Sorting part, 7 ... Storage part, 8 ... Measuring part, 8 ... Rack, 9 ... IC 10 ... IC handler, 20 ... IC loading mechanism, 21 ... Rack mounting table, 22 ... Linear feeder, 23 ... Pickup arm, 2
4 ... Elevator mechanism, 25 ... Parts falling prevention pin, 27 ... Hook plate, 28 ... Base plate, 29 ... Rotary actuator, 31 ... Bucket, 32 ... Storage opening, 81 ... Groove.

Claims (2)

[Claims] 1. A loader unit containing a plurality of ICs, and the I
And a horizontal transport mechanism unit having a bucket having an IC storage opening for storing the IC and transporting a plurality of ICs supplied from the loader unit to the measurement unit by the bucket. The horizontal transfer mechanism section has an endless winding transmission mechanism, and performs an intermittent feed operation to circulate the bucket for horizontal transfer, and the measurement section includes a plurality of terminals of each of the ICs. A plurality of contacts that are in contact with each other are arranged side by side, and the electrical connection surfaces of the plurality of contacts are arranged in the upper part of the transport path facing the horizontal transport mechanism section, and the transport path is sandwiched between the horizontal transport mechanism sections. At the opposite side of the plurality of contacts, a plurality of IC pushing mechanisms corresponding to the plurality of contacts are juxtaposed, and the IC storing opening is provided at each position of the plurality of contacts. Correspondingly, a plurality of holes are arranged side by side, each of which accommodates the IC and is a hole penetrating in the vertical direction. The ICs housed in the IC housing openings on the transport path corresponding to the contacts are pushed out to the respective measuring parts, and the ICs are inserted or pressed into the plurality of contacts to make electrical contact. Characteristic IC handler. 2. The IC handler according to claim 1, wherein the loader section is equipped with a rack having grooves for accommodating ICs continuously and formed in multiple stages.