JPH0436463Y2 - - Google Patents

Description

[Detailed description of the invention] [Field of industrial application] The present invention relates to a device created in an IC handler that can automatically sort out and eject ICs that are transported and have defective external dimensions. be.

[Prior art] An IC handler sequentially transports a large number of ICs.
It was attached to a measurement socket for testing electrical performance, and then removed from the measurement socket.
This is an automatic device that classifies ICs according to their inspection results and transports them.

Shutrails are mainly used to transport ICs within the IC handler, but when supplying and transporting ICs to and from the IC handler,
An IC magazine is used.

FIG. 2 is a partially cutaway perspective view schematically depicting the vicinity of the starting point of the IC transport route in the IC handler.

The magazine exit chute rail 1 is the magazine 5
The IC2 stored in the container is transported as shown by arrow _a1 .
This is the starting point of the IC transport route in the IC handler.

Multiple parallel shoot rails 3a, 3b, 3c
is installed parallel to the above-mentioned arrow _a1 .

On the other hand, the distribution shuttle 4 is a member that is reciprocated in the directions of arrows b and c, and is a short shuttle rail-like member on which one IC can be mounted.

The IC 2, which has slid under its own weight in the direction of arrow a ₁ , rides on the sorting shuttle 4 and is distributed and transported in the direction of arrow b or c, and is sent to any of the parallel shuttle rails 3a, 3b, and 3c, and is then transported to the direction of arrow a ₂ or a ₃ . , a ₄ are sent to the next process. That is, the material is transported to an unloader (none of which are shown) through a constant temperature bath, a measuring socket, a sorting device, etc. A shuttle rail is mainly used for this transportation.

FIG. 3 is a partially cutaway plan view of the vicinity of the component shown in FIG. 2.

[Problems that the invention aims to solve] Since the IC handler is a highly automated and highly efficient device, if an IC gets caught or becomes jammed (so-called jam) during transportation, the IC handler The whole thing would come to an emergency stop.

The purpose of this invention is to automatically select and eject ICs with incorrect shapes and dimensions near the starting point of the IC transport route in the IC handler.
The aim is to provide a device with a simple configuration.

[Means for solving the problem] The present invention created to achieve the above purpose is as follows: (a) The internal dimensions of the IC passage in the distribution shuttle are smaller than the internal dimensions of the IC passage of the magazine exit shuttle rail. (b) An IC ejecting chute rail is provided parallel to the magazine exit chute rail, and the starting end of the IC ejecting shute rail is opposed to the movement locus of the sorting shuttle with a minute gap therebetween; (c) The above IC ejecting shute rail Air nozzles are provided oppositely and spaced apart from each other at the starting end of the air nozzle, and the tips of the air nozzles are made to face the movement locus of the distribution shuttle with a small gap therebetween, so as to (d) prevent the IC from getting caught in the distribution shuttle. (e) providing automatic control means for driving the distribution shuttle based on the detection signal of the detection means and stopping it at a position facing the discharge chute rail; (f) providing means for detecting whether the distribution shuttle is discharging An automatic control means is provided for blowing out pressurized gas from the air nozzle when the vehicle stops at a position facing the shoot rail.

[Function] According to the above configuration, () Since the passage in the distribution shuttle is narrow, ICs that are likely to get caught are first caught in this distribution shuttle. In other words, those who have passed through the distribution shuttle
There is no risk of the IC getting caught on the subsequent transport route.

() When an IC gets caught in the distribution shuttle, the distribution shuttle moves to a position facing the discharge chute rail, and pressurized gas is ejected from the air nozzle, causing the caught IC to direct toward the discharge chute rail. It is blown out.

The sorting shuttle is originally a member that is driven in a direction perpendicular to the conveyance direction, so by using it, caught ICs can be ejected to the ejection shuttle rail without the need for a new drive means. The overall structure is simple.

[Embodiment] FIG. 1 is a plan view showing one embodiment of the present invention, and corresponds to FIG. 3 in the conventional example.

This embodiment is an improvement of the above-mentioned conventional example by applying the present invention, and the same drawing reference numbers as in FIG. .

Facing the entrance and exit of the distribution shuttle 4,
Optical sensors FS _-1 and FS _-2 are provided, and their output signals are input to automatic control means (not shown).

When the optical sensors FS _-1 and FS _-2 detect the IC at a minute time interval, it is known that the IC has passed. Further, when the optical sensor FS _-1 detects the IC for several seconds and the optical sensor FS _-2 does not detect the IC, it is determined that the IC is caught in the distribution shuttle 4. Said automatic control means (not shown) can detect a stuck IC in this way.

parallel to the magazine exit chute rail, and
The discharge chute rail 6 is provided with the transport direction (inclination direction) reversed.

The end of the discharge shuttle rail 6 on the starting point side faces the movement range space (trajectory) of the distribution shuttle with a small gap therebetween. A discharge port 7 is provided opposite the end point of the discharge chute rail 6.

When the optical sensors FS _-1 , FS _-2 and the automatic control means (not shown) detect that the IC is caught in the distribution shuttle 4, the automatic control means controls the distribution shuttle 4. is moved to a discharge position 4' (indicated by a phantom line) directly facing the discharge chute rail 6 (arrow d).

An air nozzle 8 is installed so as to face the discharge chute rail 6 via the distribution shuttle 4' at the discharge position.
will be established.

When the distribution shuttle moves to the discharge position 4' and stops, the automatic control means (not shown) blows out pressurized air from the air nozzle 8 as shown by the arrow e (i.e., the solenoid valve (not shown) ).

The IC that had been caught on the distribution shuttle 4' is blown out onto the discharge chute rail 6 and slides into the discharge port 7 as shown by the arrow f.

[Effects of the invention] As detailed above, by applying the present invention, ICs with incorrect shapes and dimensions can be automatically sorted and ejected near the starting point of the IC transport route of the IC handler with a simple configuration. It has the excellent practical effect of being able to perform the following functions, and greatly contributes to improving the operational reliability of IC handlers.

[Brief explanation of the drawing]

FIG. 1 is a plan view showing one embodiment of the present invention. FIG. 2 is a perspective view of the conventional example, and FIG. 3 is a plan view of the same. 1...Magazine exit chute rail, 2...
IC, 3a, 3b, 3c, 3d...Parallel shoot rail, 4, 4'...Distribution shuttle, 5...Magazine, 6...Discharge shoot rail, 8...Air nozzle.

Claims (1)

[Scope of Claim for Utility Model Registration] A magazine exit shoot rail, a plurality of parallel shoot rails installed in parallel with the magazine exit shoot rail, and a magazine exit shoot rail installed between the magazine exit shoot rail and the parallel shoot rails.
In an IC sorting device for an IC handler that is equipped with a sorting shuttle that reciprocates at right angles to the IC transport direction, (a) The internal dimensions of the IC passage in the sorting shuttle are the internal dimensions of the IC passage of the magazine exit shuttle rail. (b) An IC ejection chute rail is provided in parallel with the magazine exit chute rail, and the starting end of the IC ejection chute rail is opposed to the movement locus of the distribution shuttle through a minute gap, and (c) the above Air nozzles are provided oppositely and spaced apart from each other at the starting end of the IC discharge shuttle rail, and the tip of the air nozzle is opposed to the movement locus of the distribution shuttle with a small gap therebetween, (d) the IC is pulled in the distribution shuttle. (e) providing automatic control means for driving the sorting shuttle based on the detection signal of the detecting means and stopping it at a position facing the discharge shuttle rail; 1. An IC sorting/discharging device, comprising automatic control means for blowing out pressurized gas from the air nozzle when the shuttle stops at a position facing the discharge shuttle rail.