JPH11239764A - Electronic part inspection apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent decrease in productivity of electronic parts in the case a trouble occurs in electronic part insertion operation from an insertion guide part in an electronic part inspection apparatus which judges whether an electronic part satisfies specifications or not and removes defective part. SOLUTION: This electronic part inspection apparatus comprises an index table 40 having a large number of cut grooves 42 capable of housing electronic part one by one and an insertion guide part for carrying out insertion operation of arranging a large number of electronic parts in a row and inserting the parts in the cut grooves 42 one by one. While transporting electron parts inserted in the cut grooves 42 by rotating the index table 40, the apparatus judges whether the electronic parts housed in the cut grooves 42 satisfy a standard or not and removes unsatisfactory ones from the cut grooves 42. In the case a trouble occurs in the electronic part insertion in the insertion guide part, obstacle removing operation including processes of detecting the electron part which is an obstacle of insertion and automatically removing the obstacle electronic part is repeated two or more times.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to an electronic component inspection device.

[0002]

2. Description of the Related Art Conventionally, a chip-type electronic component, whose manufacturing process has been completed, is individually judged as to whether or not it conforms to the external shape and electrical standards. There is an electronic component inspection device that sends an electronic component to the next packaging process, the electronic component inspection device includes an index table having a number of notched grooves, and an insertion guide portion that inserts electronic components one by one into the notched grooves. The electronic components inserted into the notch grooves are individually checked for conformity to the external shape and electrical standards, etc., and defective products are eliminated, and only non-defective products are sent to the packaging process. I have to. In addition, the external quality is determined by sensors provided in the insertion guide portion and the notch groove. When the sensor detects a defective product, the interval between the insertion guide portions is increased to make the defective product free. , And is removed from the insertion guide portion and the notch groove by suctioning to a vacuum device.

[0003]

However, since the electronic component is fine, a plurality of electronic components under the influence of the vacuum, that is, 20 to 30 unidentified electronic components following the defective product, are required. The electronic component is removed while the discharge port is opened by the slide of the insertion guide, and the posture of the electronic component being removed is turned sideways while the insertion guide is returned to reduce the interval (see FIG. 4). When it becomes diagonal,
Since the insertion guide cannot return to the normal interval, the electronic components are clogged and cannot be inserted into the cutout grooves, and the work must be stopped. In order to solve such a problem, it is necessary to manually remove the electronic parts that cause an obstacle, which not only reduces the productivity but also requires a lot of labor.

[0004]

According to the present invention, there is provided an index table in which a number of notch grooves capable of accommodating electronic components one by one are formed, and an insertion in which a number of electronic components are aligned in a line and inserted one by one into the notch grooves. And an insertion guide section for performing an operation.By rotating the index table, while transporting the electronic component stored in the notch groove, it is determined whether or not the electronic component conforms to the standard, and a defective product is determined. In the electronic component inspection device that is removed from the cutout groove, when an electronic component insertion failure occurs in the insertion guide section, the electronic component that interferes with the insertion is detected and automatically becomes a failure. It is an object of the present invention to provide an electronic component inspection apparatus characterized by repeating a failure removing operation for removing an electronic component.

Another feature is that the number of repetitions of the obstacle removal operation is set to two or more.

[0006]

In the present invention, an electronic component that has undergone a manufacturing process is first put into a parts feeder, aligned in a line with the parts feeder, and formed with a notch groove formed on the outer periphery of an index table via an insertion guide. One by one. At this time, if there are external defects such as cracks, adhesion of plating residue, irregular dimensions, etc., the spacing between the insertion guides is widened to make defective products free, and the vacuum type connected to the discharge port that opens and closes by sliding the insertion guides By the suction device of
The defective product is removed from the insertion guide portion and the cutout groove so that subsequent operations are not hindered.

However, since the above electronic components are fine,
A plurality of electronic components under the influence of the vacuum, that is, 20 to 30 unidentified electronic components subsequent to the defective product are removed while the outlet is opened by the slide of the insertion guide portion, and the interval is reduced. While the insertion guide slides to make it narrower, the state of the electronic component being removed becomes sideways or oblique, and the insertion guide cannot return to the normal interval with a certain probability. The electronic part may be clogged in the guide portion or the guide may be inaccurate, so that the electronic part cannot be inserted into the cutout groove, and the operation may be forced to be stopped.

In the present embodiment, the above-mentioned state in which the insertion guide portion cannot be returned is detected, and the electronic component which causes a return failure while repeating the failure removing operation in exactly the same procedure as the defective product discharging operation described above is repeated twice. When the insertion guide is removed from the insertion guide and the insertion guide can be returned, the operation is restarted. If the insertion guide cannot be returned even after the obstacle removing operation is repeated twice, the device is stopped and an alarm is issued. To notify the operator of this.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described in detail with reference to the drawings.

In FIG. 1, reference numeral A denotes a taping and packaging apparatus for taping an electronic component T transported from a manufacturing process. B is an editing device for editing a tape wrapping the electronic component T. D is an electronic component inspection device that is incorporated in the taping and packaging device A and that removes defective components in advance before taping and packaging the completed electronic component so that defective products are not shipped. It is.
A control device C has a built-in computer for controlling the operation of each of the devices A and D, and is stored and arranged inside the machine base.

As shown in FIGS. 1 to 3, the taping and packaging apparatus A is connected to a parts feeder 1, an electronic component inspection apparatus D and a taping and packaging section 2, and the parts feeder 1 is disposed at the center. The gallery 12 is arranged along the periphery of the turntable 11 and the transport groove 31 is provided at the end of the gallery 12.
Connect the start end of the transfer gutter 30 with the
A large number of electronic components T loaded on 11 are arranged in a line in a fixed posture, and are conveyed to an electronic component inspection device D in the next step. In FIG. 1, reference numeral 13 denotes a hopper for supplying an electronic component T to the turntable 11.

An insertion guide portion 32 is connected to the end of the transfer gutter 30 so that the end of the transfer groove 31 faces the periphery of an index table 40 described later.

The index table 40 is shown in FIGS.
As shown in the figure, a large number of notch grooves 42 for accommodating only one electronic component T are formed in the peripheral portion of the table body 41 which rotates intermittently, and a deep portion of the notch groove 42 communicates with a vacuum generator (not shown). The electronic component T in the notch groove 42 is sucked and held by the negative pressure by opening the suction hole 43 thus formed. When the rotation of the index table 40 is stopped, the opening of the notch groove 42 is inserted into the transport groove 31. The electronic component T from the transport groove 31 is stored in the notch groove 42 and the pass / fail determination sections 50 and 51 disposed along the periphery of the index table 40 by the intermittent rotation of the index table 40. It is transported.

Further, one of the end guide walls 33 forming the transfer groove 31 of the insertion guide portion 32 is slidable in the horizontal direction, and the bottom wall of the insertion guide portion 32 cannot be opened and closed by the slide of the end guide wall 33. A non-defective product suction hole 63 is provided, and the defective product suction hole 63 is connected to a vacuum type defective product collection device via a suction hose 64.

The notch groove of the index table 40
When an external defective product T1 such as a crack, irregular dimensions, or adhesion of plating residue is supplied to the terminal 42, the external defective product T1 or a subsequent electronic component T is attached to the terminal guide wall 33 and the index table.
In some cases, the index table 40 may not be able to rotate.In such a case, the rotation of the index table 40 is stopped, the negative pressure of the suction hole 43 is released, and the end guide wall 33 is stopped. To loosen the holding of the electronic component T, open the defective product suction hole 63, and remove the electronic component T obstructing the rotation of the index table 40 from the cutout groove 42 and the insertion guide portion 32 by the vacuum wind pressure. Is performed.

As described above, since the externally defective product T1 is eliminated by the wind pressure of the vacuum, the defective product removal operation may not be perfectly performed with a certain probability. As shown in FIG. For example, the T may be interposed between the end guide wall 33 and the index table 40 due to the horizontal orientation, and the end guide wall 33 may not be able to return to the normal guide position, and the work may be interrupted. It is known that the return prevention state of the terminal guide wall 33 is eliminated with a high probability only by performing exactly the same failure removal operation as the above-described defective product removal operation.

Therefore, in this embodiment, a failure removal subroutine shown in the flowchart of FIG. 5 is set in the computer in the control device C to control the operation of the electronic component inspection device D.

That is, during the main routine for controlling the operation of the electronic component inspection apparatus D, the return state of the terminal guide wall 33 is monitored, and if the return of the terminal guide wall 33 is prevented, the process proceeds to the following subroutine. When the return is prevented (101), the counter is reset (102), the operation of the electronic component inspection device D is temporarily stopped (103), and a terminal guide for discharging the electronic component T which becomes an obstacle is provided. Open and close wall 33
(104), monitor the return state of the end guide wall 33 (105),
If the return is prevented (105Y), the counter is incremented (106), and if the count is 3 or less (107Y), the process returns to step (104) to open and close the end guide wall 33.

In the step (105), the terminal guide wall is provided.
If the return of 33 is not prevented (105N), the electronic component inspection apparatus D is started (108), and the process returns to the main routine.

In the step (107), if the counted number is not less than 3 (107N), the electronic component inspection apparatus D is not activated and an alarm is activated (109).
The return inhibition of 3 is constantly monitored, and if the return inhibition occurs, the electronic components that hinder the return of the terminal guide wall 33 are removed, and the return of the terminal guide wall 33 is confirmed.
Since the work is automatically restarted, productivity can be greatly increased, and manual inspection and repair work can be greatly reduced.

Further, even if the fault removing operation is repeated a preset number of times (three times in this embodiment), the insertion guide
When the terminal guide wall 33 of the 32 cannot be returned, an alarm is issued and the device is stopped, so if the terminal guide wall 33 cannot be returned for any reason other than the above, the fault removal operation is repeated and the trouble is removed. Can be prevented from expanding.

As shown in FIG. 3, on the periphery of the index table 40, first and second electrical pass / fail determination sections 50 and 51 and a first defective product discharge section 60 are provided in accordance with the rotation direction of the index table 40. , Confirmation unit 52 and second defective product discharge unit 61
And the non-defective product discharging section 21 of the taping and wrapping section 2, and discharges the electrically defective product T 2 detected by the first and second electrical pass / fail determination sections 50 and 51 from the first defective product discharging section 60. Further, the electrically defective product T2 detected by the confirmation unit 52 is discharged from the second defective product discharge unit 61, and only the non-defective product is dropped onto the tape 22 running through the taping packaging unit 2 via the non-defective product discharge unit 21. , Taping and packaging and sending to the editing device B.

As shown in FIGS. 6 and 7, the first and second defective product discharge portions 60 and 61 have defective product discharge holes 65 extending downward.
And an air supply hole 66 communicating with the outside air above, and the defective product discharge hole 65 is communicated with a vacuum generator (not shown), and the electrically defective product T2 is replaced with the first and second defective products. When approaching the discharge sections 60 and 61, the negative pressure of the suction hole 43 is released,
A negative pressure is applied to the defective product discharge hole 65, and the defective product is put on the airflow flowing from the air supply hole 66.
The defective product removing operation of discharging T2 downward from the notch groove 42 is performed.

[0024]

According to the present invention, the following effects can be obtained.

According to the first aspect of the present invention, there is provided an index table in which a plurality of cutout grooves capable of accommodating electronic components one by one are formed, and an insertion operation of aligning a large number of electronic components in a line and inserting one by one into the cutout grooves. And an insertion guide section for carrying out, by rotating the index table, while transporting the electronic component stored in the notch groove, it is determined whether or not this electronic component conforms to the standard, and the defective product is cut out by the notch. In the electronic component inspection device that is to be removed from the groove, if a failure of the electronic component insertion occurs in the insertion guide portion,
Detecting the electronic component that is an obstacle to the insertion, and repeating the obstacle removing operation of automatically removing the electronic component that becomes the obstacle, eliminates the need for human intervention for the removal of the obstacle, and also provides a short pause time. Since the work can be resumed, productivity and labor saving can be greatly improved.

According to the second aspect of the present invention, when the number of repetitions of the obstacle removal operation is set to two or more, if the end guide wall cannot be returned due to a cause other than the above, the obstacle removal operation is performed without notice. Can be prevented from increasing the number of defects.

[Brief description of the drawings]

FIG. 1 is an overall view of a taping packaging and editing device including an electronic component inspection device according to the present invention.

FIG. 2 is a perspective explanatory view showing a configuration of an electronic component supply device.

FIG. 3 is an explanatory plan view showing an arrangement around an index table.

FIG. 4 is an explanatory plan view showing a state in which the end guide wall is prevented from returning.

FIG. 5 is a flowchart of a failure removal operation.

FIG. 6 is a partial cross-sectional side view illustrating a configuration of an index table and first and second discharge units.

FIG. 7 is a partial cross-sectional plan view showing the configuration of an index table and first and second discharge units.

[Explanation of symbols]

 T Electronic component D Electronic component inspection device 40 Index table 42 Notch groove

Claims (2)

[Claims] 1. An index table having a plurality of notch grooves capable of accommodating electronic components one by one, and an insertion guide portion for performing an insertion operation of aligning a large number of electronic components in a line and inserting them one by one into the notch grooves. With the rotation of the index table, while transporting the electronic component housed in the notch groove, it is determined whether or not this electronic component conforms to the standard, and defective products are removed from the notch groove. In the electronic component inspection apparatus, when an electronic component insertion failure occurs in the insertion guide section, a failure removal operation of detecting the electronic component that is the above-described insertion failure and automatically removing the electronic component that becomes the failure is performed. An electronic component inspection device characterized by repeating the above. 2. The electronic component inspection apparatus according to claim 1, wherein the number of repetitions of the obstacle removing operation is set to two or more.