JP4474612B2 - Electronic component classification device - Google Patents

Description

The present invention relates to an electronic component classification device, and more particularly to an electronic component classification device that distributes electronic components after quality inspection according to quality grades.

2. Description of the Related Art Conventionally, a classification apparatus that distributes electronic components after quality inspection according to quality grades is known (for example, Patent Documents 1 to 3).
JP 53-104180 A JP-A-1-164487 Japanese Utility Model Publication No. 61-33441

Incidentally, the following problems have been pointed out in the above-described conventional classification apparatus.
That is, in the apparatus of Patent Document 1, a number of distribution pipes corresponding to the quality grade of electronic components are arranged on the same circumference, and each electronic component after quality inspection is arranged via a rotatable movable pipe. The distribution pipes are distributed. However, in such a configuration, when the number of distribution pipes is increased in accordance with an increase in the quality grade of electronic components, the diameter of the arrangement region in which the pipes are arranged increases, and the installation space of the entire apparatus increases.
Moreover, in the apparatus of Patent Document 2, the swing pipe is moved to the position of each distribution port provided in the distribution tray, but the swing pipe swings in only one direction. In addition, it is difficult to cope with the case where the quality grade of electronic parts becomes large.
Furthermore, in the apparatus of Patent Document 3, an electronic part is distributed to each classification box according to the quality grade by using an extendable swing tube, but when the electronic part passes through the swing tube, the expandable part In addition, since an oscillating tube that can be expanded and contracted is provided, the installation space of the entire apparatus increases.
SUMMARY OF THE INVENTION An object of the present invention is to provide an electronic component classification apparatus capable of classifying electronic components into a number of quality grades while suppressing the installation space as small as possible.

That is, the present invention relates to a charging tube that is placed at a predetermined position and into which an electronic component after quality inspection is completed, a swinging tube that is swingably connected to the charging tube, and at least the quality of the electronic component. The distribution member having the number of distribution ports corresponding to the grade of the above and the swinging tube is swung around the orthogonal X-axis and Y-axis, and the lower end portion of the swinging tube is moved to one of the distribution ports. An electronic component having a drive mechanism positioned at a position and configured to distribute the electronic component according to the quality grade by passing the electronic component after the quality inspection is completed through the input tube, the swing tube and the distribution port. In the classification device of
A distribution port of the distribution member is provided so as to form a spherical recess, and a lower end portion of the swing pipe is movable in the spherical recess and is connectable to the distribution port.
The drive mechanism includes an X-direction support shaft connected to the rocking tube and disposed in the X direction, a support member that pivotally supports the X-direction support shaft, and a belt that spans the tip of the X-direction support shaft. A B-axis direction motor that rotates the X-direction support shaft forward and backward via a Y-direction perpendicular to the X-direction, with the support member connected to one end and the B-axis direction motor attached to the other end The Y-direction support shaft is rotated in the forward and reverse directions via a Y-direction support shaft that is disposed on the bracket, a bracket that horizontally supports the Y-direction support shaft, and a belt that is stretched around the center of the Y-direction support shaft. It is comprised from the motor for A axial directions.

According to the configuration described above, electronic components can be classified into a large number of quality grades by the drive mechanism .

The present invention will be described below with reference to the illustrated embodiments. In FIG. 1, reference numeral 1 denotes a classification device that classifies a large number of electronic components (chip-type LEDs) according to quality grades such as optical characteristics and electrical characteristics.
The classification apparatus 1 includes an index table 2 that intermittently conveys each electronic component as an object to be inspected and performs a quality inspection, and each electronic component that has been placed at an adjacent position of the index table 2 and has been subjected to a quality inspection And a control device 4 that controls the operation of the index table 2, the distribution device 3, and the like.
When a large number of electronic components after manufacture are supplied to the feeder 5, the feeder 5 is arranged in a vertical row by the feeder 5 and is transported to the position of the delivery means 7 on the downstream side via the transport rail 6. . The delivery means 7 is intermittently rotated clockwise in synchronization with the index table 2, and each electronic component is sequentially delivered from the transport rail 6 to the index table 2 at the supply position A. ing.
Each electronic component delivered on the index table 2 is sucked and held by suction nozzles 8 provided radially projecting from the center of the index table 2 (see FIG. 3). While being conveyed along with the intermittent rotation for each rotation angle, the quality is inspected by a conventionally known inspection device 9 provided in the conveyance process. The inspection apparatus 9 according to the present embodiment is configured to certify electronic parts to be inspected into 128 kinds of quality grades, and the quality grades of electronic parts that have been inspected by the inspection apparatus 9 are transmitted to the control apparatus 4. It has come to be. In addition, another inspection apparatus may be installed at the next stop position of the inspection apparatus 9, and classification may be performed based on both inspection results.

As shown in FIG. 3, when the inspected electronic components are sequentially conveyed to the release position B along with the intermittent rotation of the index table 2, the suction nozzle 8 is released to the release position B after the negative pressure is released. The electronic component W is sent into the charging pipe 12 of the distribution device 3 by compressed air ejected from the nozzle 11 provided.
Then, each electronic component W sequentially sent to the input tube 12 of the distribution device 3 at the release position B passes through the input tube 12 and then passes through the swing tube 13 and the distribution port 14A of the distribution member 14. After being sorted according to a large number of quality grades according to the inspection result by the inspection device 9, it is stored in each storage box 15.

As shown in FIGS. 2 to 4, the distribution device 3 of this embodiment includes the input pipe 12 fixed by a bracket 17 and a guide pipe 18 on a horizontal support table 16, and the input pipe 12. The oscillating tube 13 slidably connected to the lower end portion, a drive mechanism 21 that oscillates the oscillating tube 13, and a plurality of distribution units provided below both the tubes 12 and 13 in the support table 16. And the distribution member 14 having a mouth 14A.
The guide pipe 18, the input pipe 12, the rocking pipe 13, and the distribution member 14 are all made of metal.
The input tube 12 is bent by 90 ° as a whole, and the inner diameter of the input tube 12 is set to a dimension that allows the electronic component W to pass with a margin. The upper end 12A of the charging pipe 12 is fitted to the guide pipe 18 and supported horizontally (FIG. 3), while the lower end 12B of the charging pipe 12 is supported vertically downward.
The guide pipe 18 is horizontally supported with the opening facing the electronic component W positioned at the release position B, and the nozzle 11 is positioned at a position opposite to the guide pipe 18 with the electronic component W serving as the release position B interposed therebetween. Is arranged toward the guide pipe 18.
The guide pipe 18 is provided with a nozzle 22 for ejecting compressed air from its inner peripheral surface toward the front in the conveying direction. When the electronic component W is positioned at the release position B as the index table 2 rotates, the suction nozzle After the supply of negative pressure to 8 is released, compressed air is ejected from the nozzles 11 and 22. Thereby, the electronic component W is fed into the guide pipe 18 by the suction force generated by the compressed air ejected from the nozzle 11 and the compressed air ejected from the nozzle 22, and also sent into the guide pipe 18. The electronic component W is fed into the swing tube 13 at high speed through the charging tube 12.

An annular spherical seal member 23 is attached to the outer peripheral portion of the lower end portion 12B of the input pipe 12. The outer peripheral surface of the spherical seal member 23 is formed in a spherical shape as a whole.
Since the spherical seal member 23 is fitted with play on the inner peripheral surface 13A near the upper end of the swing tube 13, the swing tube 13 swings around the spherical seal member 23 as the swing center. It is possible.
The control device 4 controls the operation of a drive mechanism 21 to be described later, thereby swinging the swing pipe 13 around the spherical seal member 23 and positioning its lower end portion 13B at a position close to each distribution port 14A. To be able to.

The oscillating tube 13 is formed in a tapered shape whose diameter is increased at the upper end as a whole. The inner diameter of the inner peripheral surface 13A on the upper end side of the oscillating tube 13 is set to be slightly larger than the outer diameter of the spherical seal member 23, and the inner diameter of the lower end portion of the oscillating tube 13 is provided by the electronic component W. It is set to a dimension that can be passed.
A light emitting / receiving work sensor 24 is provided on the lower side of the swing tube 13, and the electronic sensor W can be detected by the work sensor 24 when the electronic component W passes through the swing tube 13. ing. A detection signal when the work sensor 24 detects the electronic component W is transmitted to the control device 4.
The upper outer peripheral portion 13C of the swing tube 13 is formed in a rectangular parallelepiped shape, and the upper outer peripheral portion 13C is positioned between the U-shaped support members 25. Support shafts 26 and 27 are connected to two surfaces of the upper outer peripheral portion 13 </ b> C facing the support member 25 with the shaft centers positioned in a straight line, and each of the support shafts 26 and 27 is a pair provided on the support member 25. The bearing 28 is rotatably supported by the bearing 28. The support shafts 26 and 27 are arranged in the X direction shown in FIG.

One end of a support shaft 31 is connected to the center of the base portion 25A of the support member 25. The support shaft 31 is horizontally supported by a pair of bearings 33, 33 provided on a bracket 32 on the support table 16. It is supported in the Y direction orthogonal to the X direction. It should be noted that the height of the axis of the support shaft 31 coincides with the height of the center of the spherical seal member 23.
In this way, the support shaft 31 and the support member 25 are horizontally supported in the Y direction via both bearings 33, 33, and the support shafts 26, 27 and the swing pipe 13 are supported by the support members 28, 28 via the support members. 25. Thus, the intersection of the axis of the support shaft 31 and the axes of the support shafts 26 and 27 coincides with the center of the outer peripheral spherical surface of the spherical seal member 23 of the oscillating tube 13.
A timing pulley 34 is fitted to the center of the support shaft 31, and a timing belt 37 is stretched over the timing pulley 36 on the motor 35 side connected to the bracket 32 and the timing pulley 34 of the support shaft 31. .
A motor 38 is attached to the other end of the support shaft 31 protruding from the bracket 32 via a bracket, and a timing pulley 41 attached to the output shaft of the motor 38 and a timing pulley attached to the tip of the support shaft 27. The timing belt 43 is stretched over the belt 42.
The operations of the motors 35 and 38 are controlled by the control device 4. When the motor 35 is rotated in the forward and reverse directions by the control device 4, the motor 38 and the support member 25 connected to the support shaft 31 are supported. By rotating around the shaft 31, the swing tube 13 is swung in the A-axis direction shown in FIG. 3 with the spherical seal member 23 as the swing center.
Further, when the control device 4 rotates the motor 38 in the forward and reverse directions, the support shafts 26 and 27 are rotated in the forward and reverse directions, so that the swing tube 13 is shown in FIG. 4 with the spherical seal member 23 as the swing center. It can be swung in the axial direction.
As described above, in this embodiment, the control device 4 causes the swing pipe 13 to swing through both the motors 38 and 35, and the lower end portion 13B of the swing pipe 13 is connected to the required distribution port 14A in the distribution member 14. It can be located at the position.

Next, the distribution member 14 is made of a metal having a substantially square shape, and the distribution member 14 is fitted into an engagement hole 16A formed in the support table 16 from above and supported horizontally. A spherical concave portion 14B is formed on the upper surface of the distribution member 14, and the lower surface of the distribution member 14 is a spherical convex portion that follows the shape of the spherical concave portion 14B. The center 14C of the spherical surface of the spherical recess 14B coincides with the center of the spherical seal member 23, and the lower end 13B of the oscillating tube 13 is disposed close to the spherical recess 14B.
The distribution member 14 is provided with a number of through holes reaching from the spherical concave portion 14B to the lower surface, and each of the through holes constitutes each distribution port 14A. The inner diameter of the distribution port 14A is set to a dimension that allows the electronic component W to pass with a margin. The lower end of each distribution port 14A is connected to the tip of a pipe 44, and the end of each pipe 44 is inserted into the storage box 15.
The upper end opening position of each distribution port 14A is formed on a spherical coordinate with the center 14C of the spherical surface of the spherical concave portion 14B as the origin. In the present embodiment, a total of 128 distribution ports 14A are formed so as to correspond to the total number of quality grades described above. In addition, each distribution port 14A is arranged such that the axis of each distribution port 14A is aligned with the axis of the oscillation tube 13 when the oscillation tube 13 is moved toward each distribution port 14A. It has become.

The operation of the distribution device 3 configured as described above will be described. That is, along with the intermittent rotation of the index table 2 described above, the electronic component W is subjected to quality inspection by the inspection device 9 (FIG. 1), and the inspection of the electronic component W that has been inspected by the inspection device 9 is completed. The quality grade is transmitted from the inspection device 9 to the control device 4 as an inspection signal.
Then, the control device 4 oscillates the oscillating tube 13 in the A-axis and B-axis directions via the motors 35 and 38, and the lower end portion 13B of the oscillating tube 13 is transmitted from the inspection device 4 first. Further, it is positioned at the position of the specific distribution port 14A corresponding to the quality grade of the electronic component W.
Next, in this state, when the electronic component W after inspection is transported to the release position B with the intermittent rotation of the index table 2 as shown in FIG. 3, the control device releases the suction state by the suction nozzle 8. After that, the on-off valves (not shown) corresponding to the nozzles 11 and 22 are opened and the compressed air is ejected from the nozzles 11 and 22, so that the electronic component W rides on the air flow and passes through the guide pipe 18 and enters the inlet pipe 12. Then, after being fed into the specific distribution port 14 </ b> A from the lower end portion 13 </ b> B via the inside of the oscillating pipe 13, it is accommodated in the accommodation box 15 via the pipe 44.

The passage of the electronic component W is detected when the electronic component W passes through the work sensor 24 of the swing tube 13, and the detection signal is transmitted to the control device 4.
Then, the control device 4 closes the on-off valve and stops the ejection of compressed air from the nozzle 11 and the nozzle 22.
Thereafter, when the quality inspection result for the next electronic component W is transmitted from the inspection device 9 to the control device 4, the control device 4 moves the swing tube 13 in the A-axis direction and B through both motors 35 and 38. By oscillating in the axial direction, the lower end portion 13B of the oscillating tube 13 is positioned at a specific distribution port 14A corresponding to the quality grade transmitted from the inspection device 9.
When a new electronic component W that has been inspected in this state is transported to the release position B, the compressed air is ejected from the nozzle 11 and the nozzle 22 so that the electronic component W is fed into the input tube 12 and then the swinging tube. 13 and then, it is sent to a specific distribution port 14A via a pipe 13 and then accommodated in a storage box 15 via a pipe 44.
When the electronic component W passes through the rocking tube 13, it is detected by the work sensor 24, and a detection signal is transmitted to the control device 4.
Thereafter, the operation control of each component of the distribution device 3 by the control device 4 described above is repeated, so that the inspected electronic parts W are distributed according to the quality grade.

In the present embodiment described above, the spherical concave portion 14B is formed in the distribution member 14, and 128 distribution ports 14A are provided at equal intervals in the A-axis direction and the B-axis direction. Then, the oscillating tube 13 is oscillated around the spherical seal member 23, and the lower end portion 13B of the oscillating tube 13 is positioned at a specific distribution port 14A.
Therefore, according to the present embodiment, it is possible to provide a distribution device 3 capable of classifying the electronic components W into a number of quality grades while suppressing an increase in installation space as compared with the above-described conventional device. Therefore, it is possible to provide the classification device 1 that is small and highly versatile. Further, since the input tube 12 and the swing tube 13 are connected via the spherical seal member 23, the electronic component W is not likely to jump out even if the swing angle of the swing tube 13 is large.
Further, when the oscillating tube 13 is oscillated and positioned at the position of each distribution port 14A, the axis of the oscillating tube 13 and the axis of each of the distribution ports 14A are positioned on a straight line. to reduce the resistance when the component W passes inside them, kill the electronic component W at high speed and smoothly housed in the housing box 15.

In addition, as a structure of the distribution member 14 , many pipes may be prepared and it may arrange | position so that those upper-end opening parts may comprise a spherical recessed part as a whole.

1 is a schematic plan view showing a first embodiment of the present invention. The top view of the distribution apparatus 3 shown in FIG. Sectional drawing of the principal part which follows the III-III line | wire of FIG. Sectional drawing of the principal part in alignment with the IV-IV line of FIG.

1 ... Classifier 12 ... Pipe
13 ... Oscillating tube 14 ... Distributing member
14A : Distribution port 14B : Spherical concave portion W: Electronic component

Claims (3)

An input tube that is placed at a predetermined position and into which an electronic component after quality inspection is completed, an oscillating tube that is swingably connected to the input tube, and a number corresponding to at least the quality grade of the electronic component A distribution member having a distribution port, and a drive mechanism for oscillating the oscillating tube about axes orthogonal to each other in the X and Y directions and positioning the lower end portion of the oscillating tube at one of the distribution ports In the electronic component classification apparatus configured to distribute the electronic components according to the quality grade by passing the electronic components after the quality inspection through the input tube, the swing tube and the distribution port,
A distribution port of the distribution member is provided so as to form a spherical recess, and a lower end portion of the swing pipe is movable in the spherical recess and is connectable to the distribution port.
The drive mechanism includes an X-direction support shaft connected to the rocking tube and disposed in the X direction, a support member that pivotally supports the X-direction support shaft, and a belt that spans the tip of the X-direction support shaft. A B-axis direction motor that rotates the X-direction support shaft forward and backward via a Y-direction perpendicular to the X-direction, with the support member connected to one end and the B-axis direction motor attached to the other end The Y-direction support shaft is rotated in the forward and reverse directions via a Y-direction support shaft that is disposed on the bracket, a bracket that horizontally supports the Y-direction support shaft, and a belt that is stretched around the center of the Y-direction support shaft. An electronic component classification apparatus comprising an A-axis direction motor.   2. The electronic component classification apparatus according to claim 1, wherein an upper end portion of the swing pipe is swingable through a spherical seal member provided in the input pipe. The dispensing port, when the lower end portion of the swing pipe is located at the position of each distribution port, and characterized in that the axis of the swing pipe and the axis of each distribution orifice is positioned on a straight line The electronic component classification apparatus according to claim 1 or 2 .

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