JPH11283814A - Electronic part checking device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To eliminate a time lag by automatically eliminating an electronic part which has come just to an improper part rejecting portion and by restarting a rotation of an index table in the case of the index table being obstructed. SOLUTION: When rotating obstruction of an index table 40 is generated, operation of an electronic part checking device is temporalily stopped and a discharge mistake electronic part is removed from a first and a second improper part discharge portions 60 and 61. After recognition of the rejection, the mistaken supply electronic part at an insert guiding part 32 is removed, and the rejection is conformed. After that in the case an aperture of a notch gap 42 locates at the position of correctly facing a transfer gap 31, the index table 40 is rotated a pitch, and a rotating condition is monitored. If there is no rotating obstruction, operation of the electronic part checking device is started. During the rotating obstruction the electronic part checking device is maintained under an operation stopping condition, an alarming is generated, and checking and repairing by a manual work are performed. Thereby productivity is largely enhanced.

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 the next packaging process, the electronic component inspection device is equipped with an index table formed with a number of notched grooves, electronic components are inserted into the notched grooves detachably one by one. In addition, it is determined whether or not the product conforms to the external shape and the electrical standard, so that defective products are eliminated and only non-defective products are sent to the packaging process.

That is, the electronic components that have undergone the manufacturing process are first put into a parts feeder, aligned in a line with the parts feeder, and inserted one by one into a cutout groove formed on the outer periphery of the index table via an insertion guide. At this time, if there are external defects such as cracks, adhesion of plating residue, irregular dimensions, etc., these defects are removed by the insertion guide provided at the end of the parts feeder so that subsequent operations will not be hindered. ing.

[0004] In the vicinity of the outer peripheral edge of the index table, a pass / fail judging section for judging whether or not the electric characteristics of the electronic component conforms to the standard is disposed on the upstream side, and a defective product discharging section is located on the downstream side. When the defective product detected by the pass / fail determination unit reaches the defective product discharge unit, the negative pressure that had been applied to hold the electronic components in the notched groove was blown. It is switched so that it is discharged and removed from the notch groove.

[0005]

However, if the above-described defective product is not discharged smoothly, as shown in FIG. 9, the index table a and the member b of the defective product discharge section are used.
The electronic component t is caught in between, the rotation of the index table a is prevented, the work is interrupted, and in order to resume the work, the electronic component t caught by hand must be removed.
There is a problem that not only the work efficiency is reduced but also a large amount of labor is required.

In particular, as described above, the discharge and removal of the electronic component t is performed by switching between negative pressure and blow.
Once a blow is performed to discharge and remove defective products, there is a time lag until negative pressure is applied to hold the electronic components, and then the position and attitude of the electronic components approaching the defective product discharge section There is a problem that it becomes unstable and the rotation of the index table is likely to be prevented.

[0007]

According to the present invention, there is provided an index table in which a plurality of notch grooves capable of storing electronic components one by one are formed, and the electronic components stored in the notch grooves are conveyed by rotating the index table. Meanwhile, in the electronic component inspection device configured to determine whether or not this electronic component conforms to the standard, and to remove the defective product from the cutout groove when the defective product reaches the defective product discharge portion, When the rotation of the index table is stopped, an electronic component that has reached the defective product discharge section is automatically removed, and the rotation of the index table is restarted. It is something you want to do.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS In this embodiment, when the above-mentioned rotation preventing state of the index table is detected, the electronic component approaching the defective product discharging section is discharged from the notch groove by blowing, and the index table is rotated by one pitch. If the removal of the discharge work can be confirmed and the origin (fixed position) of the index table can be confirmed, the index table can be rotated and the operation resumed. If the obstacle has not been removed reliably, an alarm is issued. The operator is notified of this and prompts the operator to perform a manual repair. By doing so, when the rotation of the index table is stopped, about 50% of the work is automatically restored. Can be continued, and productivity and labor saving can be greatly improved.

[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.
C is a control device having a built-in computer for controlling the operation of each of the devices A, B, and D.

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.

At the end of the transport gutter 30, an insertion guide portion 32 arranged facing a peripheral edge of an index table 40 described later.
The insertion guide portion 32 allows one of the end guide walls 33 forming the end portion of the transport groove 31 to be slidable in the horizontal direction, and the bottom end wall of the insertion guide portion 32 has A defective product suction hole 63 that is opened and closed by sliding is provided, and the defective product suction hole 63 is connected to a vacuum pump (not shown) through a suction hose 64 via a defective product collection device (not shown),
When an externally defective product T1 such as a crack, irregular dimensions, or adhesion of plating residue is approaching the insertion guide portion 32, the terminal guide wall 33 is slid to loosen the externally defective product T1, and the negative pressure from the vacuum pump is reduced. The externally defective T1 is removed from the defective product suction hole 63 by the pressure so as not to be supplied to the notch groove.

As shown in FIGS. 2 to 5, the index table 40 includes one electronic component T at the periphery of the table body 41.
A large number of notch grooves 42 that can be stored therein are formed, and when the index table 40 intermittently rotates, the opening of the notch groove 42 is directly opposed to the transfer groove 31 so that the electronic component T from the transfer groove 31 is cut out. It is stored in the groove 42.

On the periphery of the index table 40, as shown in FIG. 3, according to the direction of rotation, a first electrical good / bad determining unit 50, a second electrical good / bad determining unit 51, a first defective product discharging unit 60, The checking unit 52, the second defective product discharging unit 61, and the non-defective product discharging unit 21 of the taping and packaging unit 2 are arranged in the above order.
The electrically defective product T2 detected by the first and second electrical acceptability determining units 50 and 51 is discharged from the first defective product discharging unit 60, and furthermore, the checking unit 52
The electrically defective product T2 detected in step 2 is discharged from the second defective product discharge unit 61, and only the non-defective product is dropped onto the tape 22 running in the taping packaging unit 2 via the non-defective product discharge unit 21, and the tape is wrapped. It is sent to the editing device B.

As shown in FIGS. 4 and 5, the first and second defective product discharging portions 60 and 61 are located immediately below the locus of passage of the cutout groove 42 of the bottom wall 66 slidably contacting the lower surface of the peripheral portion of the index table 40. A defective product discharge hole 65 extending downward is formed at the position, and an intake / exhaust port 68 is opened at a position immediately above the passage locus of the notch groove 42 of the upper wall 67 slidably contacting the upper surface of the peripheral portion of the index table 40. The suction / exhaust port 68 communicates with a vacuum pump (not shown) and a compressor (not shown) through a bifurcated intake / exhaust hole 69.

Then, the electrically defective product T2 is output to each defective product discharging section.
When approaching 60, 61, the vacuum pressure from the vacuum pump, which had been acting on the intake / exhaust port 68 to hold the electronic component T, was switched to blow from the compressor, and the defective It is discharged and removed to the outside through the discharge hole 65.

FIGS. 5 and 6 show another embodiment of the defective product discharging portions 60 and 61. The defective product discharging hole 65 is located at a position slightly away from the periphery of the index table 40 at the bottom wall 66.
When the electrically defective product T2 reaches each of the defective product discharge portions 60 and 61, the electronic component is not opened until the intake / exhaust hole 69 is opened in the bottom wall 66 immediately below the passage locus of the cutout groove 42. The negative pressure from the vacuum pump acting on the suction / exhaust port 68 to maintain T is switched to the blow from the compressor, and is discharged and removed from the notch groove 42 to the outside through the defective product discharge hole 65. ing.

As described above, since the rejection of the electrically defective product T2 is performed by switching from the negative pressure to the blow, the operation of removing the defective product may not be perfectly performed with a certain probability. Is carried out by switching opposite to the above, the position and posture of the next electronic component T with respect to the notch groove 42 become unstable, and the electronic component T is sandwiched between the notch groove 42 and the adjacent member. The rotation of the index table 40 may be prevented.

However, only by performing the same fault removal operation as the above-described defective product removal operation, the index table
It has been experimentally confirmed that 40 rotation inhibition states are eliminated with high probability.

Therefore, in the present embodiment, the operation of the electronic component inspection apparatus D is controlled by setting a failure removal subroutine shown in the flowchart of FIG.

That is, in the main routine for controlling the operation of the electronic component inspection apparatus D, a conditional branch for monitoring the rotation state of the index table 40 is provided.
When rotation inhibition of 40 occurs (101), the electronic component inspection device D
Is temporarily stopped (102), and the first and second defective product discharging units 6 are stopped.
At 0,61, the electronic component with the wrong ejection is removed (103), and when the removal is confirmed (104Y), the electronic component with the wrong supply of the insertion guide portion 32 is removed (105), and when the removal is confirmed. (106
Y), when the index table 40 is at the origin, that is, when the opening of the notch groove 42 is at a position exactly facing the conveyance groove 31 (107Y), the index table 40 is rotated by one pitch (108), The rotation state of the table 40 is monitored (109), and if there is no rotation inhibition (109N), the operation of the electronic component inspection device D is started (110), and the process returns to the main routine.

In steps (104) and (106), if removal of the failed electronic component is not confirmed (104N) (106N), in step (107), if the index table 40 is not at the origin (107N), and If the rotation is stopped in step (109) (109Y), the electronic component inspection apparatus D is kept in an operation stop state and an alarm is activated (111) to wait for manual inspection and repair. .

As described above, the prevention of the rotation of the index table 40 is constantly monitored, and when the rotation is prevented, the operation of the electronic component inspection device D is stopped to remove the electronic components that hinder the rotation of the index table 40. Then, the removal state and the stop position of the index table 40 are checked, and if normal, the operation is automatically resumed.
Since the alarm is activated, the productivity can be greatly increased, and the manual inspection and repair work can be greatly reduced.

[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 having a large number of notched grooves capable of accommodating electronic components one by one, and by rotating the index table,
While transporting the electronic components stored in the notch groove, it is determined whether this electronic component conforms to the standard, and when the defective product reaches the defective product discharge section, the defective product is removed from the notch groove In the electronic component inspection device configured to be configured, when the rotation of the index table is prevented, the electronic component approaching the defective product discharge unit is automatically removed, and the rotation of the index table is restarted. Accordingly, the time required for resuming the work is greatly reduced, the productivity is improved, and the need for manual repair is eliminated, so that significant labor savings can be achieved.

[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 a partial cross-sectional plan view illustrating a configuration of first and second defective product discharge units.

FIG. 5 is a partial cross-sectional side view showing a configuration of first and second defective product discharge units.

FIG. 6 is a partial cross-sectional plan view showing another configuration of the first and second defective product discharge units (other examples).

FIG. 7 is a partial cross-sectional side view showing a configuration of first and second defective product discharge units (another embodiment).

FIG. 8 is a flowchart of a failure removal operation.

FIG. 9 is an explanatory plan view showing a rotation preventing state of the index table.

[Explanation of symbols]

 D Electronic component inspection device T Electronic component T2 Electrically defective product 40 Index table 42 Notch groove 60,61 Defective product discharge section

Claims (1)

[Claims] An index table having a plurality of notch grooves capable of accommodating electronic components one by one is provided. By rotating the index table, the electronic components accommodated in the notch grooves are conveyed to a standard. In the electronic component inspection device configured to determine whether or not the defective product is defective and to remove the defective product from the cutout groove when the defective product reaches the defective product discharge unit, the rotation of the index table is prevented. An electronic component inspection device configured to automatically remove the electronic component approaching the defective product discharge section and restart the rotation of the index table.