JPH0231839Y2 - - Google Patents

Description

[Detailed description of the invention] [Field of application of the invention] The present invention relates to a stay positioning device for DIP type ICs (hereinafter simply referred to as ICs), and is particularly applicable to stay positioning devices of various shapes and dimensions that are uniquely manufactured by IC manufacturers. A stake for IC that is suitable for positioning with the degree of accuracy necessary for taking out an IC from the stake or storing an IC in the IC by using a recess formed on the bottom surface of the stake. This invention relates to a positioning device.

[Background of the idea]

The IC is in the first case, which is a special case unique to the IC manufacturer.
It is handled in a stake 1 as shown in the figure. And the IC placed in this stake 1
(not shown) is the status 1 at the user's side.
There are cases where the product is taken out from the storage unit, undergoes necessary processing, inspection, etc., and then stored in the stake 1 again. In this case, IC supply from stake 1 and IC storage into stake 1 are automatically and continuously performed via the stake supply device.

FIG. 2 is an end view of various stakes.

Even if the ICs have similar specifications and standards, the stakes that house the ICs are manufactured independently by each IC manufacturer, so the shapes differ as shown in Figure 2 A, B, C, and D.

Regardless of the manufacturer's stake, a concave portion 1a is formed at the bottom, but its width W is not constant.

However, when looking at stakes that house ICs of the same standard, there is not a large difference in the width dimension of the recessed portion 1a of various stakes, but there is a variation of about 1 mm.

Among the four types of examples shown in FIG. 2, the width dimension Wmin of the concave portion 1a of the stake shown in FIG. 2B is the smallest.

For convenience of explanation, let Wmax represent the width of the recess with the maximum width in the various stakes to be handled.

When various stakes are loaded together on a stake supply device and the supplied ICs are fed into these stakes or ICs are taken out from these stakes, the feeding of ICs is generally carried out by a shuttle rail, and the transport of the removed IC is also carried out by a shuttle rail. It is carried out by.

For this reason, it is necessary to position the stake containing the IC with an accuracy (for example, 0.5 mm) necessary for directly facing the shuttle rail and transferring the IC.

If an attempt is made to guide and position the stake using the concave portion 1a of the stake, it is conceivable within the scope of the prior art to provide a convex member that fits into the concave portion 1a. Unless the width dimension of the stake is set to be considerably smaller than Wmin, the stake will not fit well into the recess 1a of the stake that is released from the stake supply device and falls.

However, if the width dimension of the convex member is made significantly smaller than Wmin, the positioning accuracy will deteriorate. In particular, the positioning accuracy of the stake having a concave portion with the width dimension Wmax is poor, and the accuracy necessary for joining with the shoot rail (for example, 0.5 mm) cannot be obtained.

[Purpose of invention]

The purpose of the present invention is to solve the above-mentioned problems, and to connect various stakes of different shapes and dimensions supplied from a stake supply device (specifically, various stakes with a variation of 1 mm in the width of the recess) to a short rail. An object of the present invention is to provide a stake positioning device for ICs, which can perform positioning with the precision required for bonding (for example, 0.5 mm) and smoothly receive and send ICs to and from the previous or next process.

[Summary of the idea]

In the present invention, a stick pusher is provided below one of a pair of chute to push the above-mentioned stay in direction a toward the other chute, and Below, there is a primary guide part having a width significantly narrower than the minimum width of the recesses of the various stakes, and a secondary guide part formed on a tapered surface that gradually increases the width of the guide part following the primary guide part. , followed by a stake guide having a straight tertiary guide portion formed to have a width slightly narrower than the minimum width of the recessed portions of the various stakes; The provided guide parts are arranged in the order of a primary guide part, a secondary guide part, and a tertiary guide part in the direction a, which is the pushing direction of the stay pusher, and the primary guide part is characterized in that it is disposed directly below the other chute, facing a recess provided in the stake emitted from the other chute, and with this configuration, the above object can be achieved. It was made.

[Example of idea]

An embodiment of the present invention will be described below with reference to FIGS. 3 and 4.

As shown in FIG. 3, the stake positioning device according to the present invention is installed in a stake supply device, and positions the stakes 1' (indicated by imaginary lines) that are dropped one by one from the stake supply device. I'm starting to do that.

The stake supply device includes a main body 2, a pair of chute 3, 4, a stopper 5, a clamper 6, etc. provided on the inner side of each chute 3, 4.

The main body 2 has a bottom plate 2 for receiving the stake 1'.
A and a side plate 2b for attaching various parts are combined to form an L-shaped cross section.

The chute 3, 4 has a guide groove 3 formed to have a width wider than the maximum width of the various stakes.
a, 4a, and is fixed to the main body 2 with these guide grooves 3a, 4a facing each other, and the guide groove 3
A, 4a can be fitted to allow various stakes to be mixed and stacked.

The stopper 5 is slidably provided on the side plate 2b of the main body 2, and is adapted to support the lowest stake of the stakes stacked on the chute 3, 4.

The clamper 6 is slidably provided on the side plate 2b of the main body 2, and moves the second stick from the bottom of the stacks stacked on the chute 3, 4 between it and one end surface of the guide grooves 3a, 4a. It is configured to be held in place.

In this stake supply device, various types of stakes are stacked by fitting the chute 3, 4 into guide grooves 3a, 4a. Then, with the stopper 5 supporting the lowermost stake, the clamper 6 removes the 2nd stake from the lowermost part.
Hold the th stake and separate the bottom one stake. Subsequently, as the stopper 5 moves backward, the lowermost stay touches the bottom plate 2a of the main body 2.
It falls on top under its own weight and is supplied. Next, the stopper 5 advances, and at this point the clamper 6 retreats.
The stake rows stacked on the chute 3, 4 are again supported by the stopper 5.

In this stake feeding device, the above-mentioned sequential operations are repeated to separate and feed the lowest stakes of the stake row one by one.

Next, the stake positioning device shown in FIG. 3 includes a stake guide 7 and a stake pusher 10. As shown in FIG.

The stay guide 7 is connected to the chute 3,
4, and is rotatably attached to a mounting base 8 via a pin 9. In addition, this stake guide 4 is
It has a primary guide part 7a, a secondary guide part 7b, and a tertiary guide part 7c, and the primary guide part 7a, the secondary guide part 7b, and the tertiary guide part 7c are arranged in this order. The primary guide portion 7a is located in the recessed portions 1a of various stakes.
It has a width _t1 significantly narrower than the minimum width Wmin, is formed in a straight shape, and is located directly below the guide groove 3a of the chute 3. The secondary guide portion 7b is connected to the primary guide portion 7a following the tip of the primary guide portion 7a.
It is formed into a tapered surface whose width gradually increases. The tertiary guide portion 7c is formed next to the secondary guide portion 7b to have a width _t2 slightly narrower than the minimum width Wmin of the recess 1a. Note that a guide rail (not shown) for IC sliding is connected to the tip of the tertiary guide portion 7c.

On the other hand, the static pusher 10 is provided at the lower part of the chute 4 of the chute 3 and 4. . The stationary pusher 10 is connected via a rod 11 to a reciprocating drive unit (not shown) such as a fluid pressure cylinder, and is connected to the bottom plate 2 of the main body 2.
The stake 1' on a is pushed in the direction of the stake guide 7, that is, in the direction shown by the arrow a' in FIG.

The stake positioning device of the above embodiment operates as follows.

That is, when the stake pusher 10 is moved backward, the bottom plate 2 of the main body 2 is removed from the stake supply device.
One stake 1' is supplied onto the stake guide 7a, and the stake 1' falls so that the concave portion 1a straddles the narrowest primary guide portion 7a of the stake guide 7.

Then, a stake 1' is placed on the bottom plate 2a of the main body 2.
When the stick falls, the stake pusher 10 advances in the direction of arrow a' in FIG. 3 and pushes the stake 1' in the direction of the stake guide 7, that is, in the direction of arrow a.

As a result, the stake 1' is moved from the primary guide portion 7a of the stake guide 7, which is formed with a width t1 significantly narrower than the minimum width Wmin of the recesses _1a of the various stakes, to the secondary guide portion 7a formed on the tapered surface. The IC is positioned while sequentially passing through the guide portion 7b and subsequently the tertiary guide portion 7c, which is formed in a straight shape and has a width _t2 slightly narrower than the minimum width Wmin of the recessed portion 1a. It engages with a sliding guide rail (not shown).

In the above operation, when the concave portion of the stake that is released from the stake supply device and falls fits across the primary guide portion 7a of the stake guide, the width dimension t ₁ of the primary guide portion 7a is t ₁ <<Wmin, so they can be reliably fitted.

Then, when the pushed stay concave portion fits into the tertiary guide portion 7c, the width dimension of the tertiary guide
Since t ₂ is slightly narrower than Wmin, the minimum width dimension
It is possible to smoothly guide a stake having a recess of Wmin, and there is no risk of it sticking in an interference fit state.

In addition, the maximum width dimension Wmax of this tertiary guide part
When a stake with a recess of It is.

Note that when this stake supply device is used for the IC supply side, the chute 3 side of the bottom plate 2a is lower than the chute 4 side, and when used for the IC storage side, the chute 3 side is lower than the chute 4 side. By creating a high slope, the IC can slide on the guide rail using its own weight and be sent out of the stake or stored inside the stake.

In the former case, that is, when used on the IC supply side, the weight of the stake causes the recess 1a to move the guide portions 7a, 7 of the stake guide 7.
Slide down in the order of b and 7c until the stay opening reaches IC.
Since the sliding guide rail can be brought into contact with the sliding guide rail, the stand pusher 10 can omit this.

[Effect of idea]

According to the present invention described above, a stake pusher is provided below one of the pair of chute of the stake supply device to push the stake in the direction a toward the other chute. and, below the other chute, there is a section having a width significantly narrower than the smallest width of the recesses of the various stakes.
a secondary guide part formed on a tapered surface that gradually increases the guide part width following the primary guide part; A stake guide having a straight tertiary guide portion formed therein is disposed, and each guide portion provided on the stake guide is arranged in a direction a in which the stake pusher is pushed. a primary guide part, a secondary guide part, and a tertiary guide part are arranged in this order in the direction, and the primary guide part is provided directly below the other chute on a stake ejected from the other chute. Since the stakes are placed opposite the recesses of the stakes, the recesses of various stakes with different shapes and dimensions supplied from the stake supply device can be
The primary guide section securely receives the IC, the secondary guide section guides it, and the tertiary guide section securely receives the IC to the necessary degree of accuracy (necessary for transferring the IC to and from the shoot rail).
The joint accuracy between the stake and the shoot rail can be determined.

[Brief explanation of the drawing]

Figure 1 is a perspective view showing an example of an IC stay.
Figures 2 A, B, C, and D are end views showing various stakes uniquely manufactured by IC manufacturers, Figure 3 is a perspective view showing an example of the present invention, and Figure 4 is an enlarged perspective view of the stake guide. It is a diagram. 1... Stakes, 1'... Stakes separated and supplied by the stake supply device, 1a... Recessed portion formed on the bottom surface of the stakes, 2... Main body of the stake supply device, 3, 4... The same chute,
5...The same stopper, 6...The same clamper, 7...The stake guide of the stake positioning device, 7a
...Primary guide part, 7b...Secondary guide part with tapered surface, 7c...Straight 3 formed with a width slightly narrower than the minimum width of the recesses of the various stakes.
Next guide part, 8...Stick guide mounting base, 10...Stick pusher, 11...Stick pusher operating rod.

Claims (1)

[Claims for Utility Model Registration] A DIP type IC in which stakes for DIP type ICs are stacked and held in a pair of chute, and the lowest stakes in the stack row are separated and supplied one by one.
In a stake positioning device installed in a stake supply device for use in the industry, a stake pusher is provided below one of the pair of chute to push the stake in direction a toward the other chute. and below the other chute, there is a section having a width significantly narrower than the smallest width of the recesses of the various stakes.
a secondary guide part formed on a tapered surface that gradually increases the guide part width following the primary guide part; A stake guide having a straight tertiary guide portion formed therein is disposed, and each guide portion provided on the stake guide is arranged in a direction a in which the stake pusher is pushed. a primary guide part, a secondary guide part, and a tertiary guide part are arranged in this order in the direction, and the primary guide part is provided directly below the other chute on a stake ejected from the other chute. A stake positioning device for a DIP type IC, characterized in that the stake positioning device is placed facing a recessed portion of the IC.