JPH1143218A - Part alignment device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To align parts on an alignment pallet in a feeding order in a short time despite of a small amount of parts feed by moving a feed cylinder along the alignment hole of the alignment pallet, dropping the parts into the alignment hole, and feeding the parts to the alignment pallet in such an order as received from the outside. SOLUTION: When a feed cylinder 2 is moved along an alignment hole 7 arranged linearly, ball parts 1 are dropped into the alignment hole 7 in order and fill the hole. In the mean time, the ball parts 1 in the feed cylinder 2 which fill the alignment hole 7 of the alignment pallet 8 from the bottom parts in order are gradually reduced. In this case, ball parts 1 are newly fed from the top part of the feed cylinder 2. The ball parts 1 first received from the outside by the feed cylinder 2 are thus fed to the alignment pallet 8 first (first-in and first-out). In this way, when the parts received first are fed first, the ball parts 1 first received from the feed cylinder 2 are fed to the alignment pallet 8 at all times.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a component aligning device, and more particularly to a component aligning device suitable for aligning spherical components such as solder balls.

[0002]

2. Description of the Related Art Conventionally, as a component aligning apparatus, a large number of component aligning holes are formed on an aligning pallet, and the components are placed on the pallet and vibrated while the components are dropped into the component aligning holes. An alignment type is known.

[0003] As this kind of component alignment apparatus, there is an apparatus disclosed in, for example, JP-A-8-72819. The apparatus includes an aligning unit including an aligning pallet and a component collecting unit that is a place where the unaligned components are temporarily retracted, a swing unit that swings the aligning unit, and a vibrating unit that vibrates the aligning unit. The components are aligned by applying vibration and swing to the alignment portion.

[0004]

However, in the conventional apparatus, since the components on the alignment pallet are moved by swinging and vibration, the probability that the components pass through the component alignment holes is not stable. In order to increase the component passing probability, it is necessary to supply a large number of components. Therefore, when the number of components is small, there is a disadvantage that the passing probability of the components is reduced, and it takes time to perform desired component alignment. Further, as described above, in the conventional apparatus, a large number of parts need to be present on the alignment pallet at the same time, so that the supplied new and old parts are mixed on the alignment pallet.
Therefore, if the parts are replenished when the number of parts on the alignment pallet becomes small, there is a problem that it is difficult to manage the parts because the new and old parts are mixed.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a component arranging apparatus capable of arranging even a small amount of components on an alignment pallet in a short time and arranging components in the order of component supply.

[0006]

According to the present invention, there is provided an alignment pallet having a receiving hole for receiving a component, and the receiving pallet moving along the receiving hole of the aligning pallet. Component supplying means for supplying a component to the hole. In addition, the component supply means may include a first receiving / supplying means for supplying components to the alignment pallet in the order in which they are received from the outside.

With this configuration, since the component supply means (supply cylinder) is moved along the receiving hole of the alignment pallet, the component can be dropped into the receiving hole with a high probability.
In addition, since the parts are supplied to the sorting pallet by the first receiving / supplying means in the order in which they are received from the outside, the parts can be arranged on the sorting pallet in the order in which the supply cylinders receive them.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below based on an embodiment shown in the drawings. FIG. 1 is a perspective view of a component alignment device BS of the present embodiment, and FIG. 2 is a cross-sectional view of an alignment pallet and a cylindrical carrier constituting the component alignment device BS. As shown in FIGS. 1 and 2, the component alignment device BS includes a plate-shaped rectangular pedestal DZ, a component alignment unit PS disposed on the front left side of the pedestal DZ, and a rear right side of the pedestal DZ. X placed
And a moving stage IS in the Y direction.

The component alignment section PS includes a rectangular parallelepiped excitation table 9 that vibrates finely in the left-right direction, and a rectangular plate-shaped alignment pallet 8 disposed on the excitation table 9. The alignment pallet 8 has alignment holes 7 formed in a matrix, and the depth d of the alignment holes 7 is d = 0.
8D is set. The moving stage IS includes a moving stage ISX for moving a component supply cylinder 2 described below in the X-axis direction and a moving stage I for moving the component supply cylinder 2 in the Y-axis direction.
SY.

[0010] The moving stage ISX is configured as follows. That is, a linear movement guide 11a for parallel movement is fixed on the plate-shaped rectangular stage base 4 in the X-axis direction, and a mounting block 12a movable in the X-axis direction is arranged on the straight movement guide 11a. The mounting block 12a is fixed to a belt 10a, and the belt 10a is
And is stretched between a pulley 14a fixed to the output shaft of the pulse motor 5a and a pulley 14b disposed opposite to the pulley 14b. By the forward / reverse rotation of the pulse motor 5a, the mounting block 12a can move in the front-back direction of the X axis.

A straight rail 11b is fixed on the mounting block 12a in the Y-axis direction, and the mounting block 12b is arranged on the straight rail 11b. The mounting block 12b is fixed to a belt 10b. The belt 10b is connected to a pulley 14c fixed to an output shaft of a pulse motor 5b fixed to the stage base 4.
and d. By the forward and reverse rotation of the pulse motor 5b, the mounting block 12b can move in the front-rear direction of the Y axis.

A support plate 21 is provided on the mounting block 12b.
The clearance adjustment unit 3 described below is fixed to the tip of the support plate 21. A mounting plate 22 is provided laterally from a front end side surface of the support plate 21 toward the front side.
A supply tube 2 having a tubular shape for supplying to the container is fixed. The entire lower surface of the supply tube 2 is open to the alignment pallet 8, and the entire upper surface of the supply tube 2 is open. The clearance (gap) h between the supply cylinder 2 and the alignment pallet 8 can be adjusted by rotating the knob 3a of the clearance adjusting section 3. If the clearance can be adjusted in this manner, the optimum clearance can be easily set even when the size of the spherical component 1 changes.

Next, the operation of this embodiment will be described. When the aligning pallet 8 is finely vibrated by the vibrating table 9, the spherical component 1 in the supply tube 2 arranged with a clearance h with respect to the aligning pallet 8 also vibrates with the fine vibration. By moving the moving stage IS in the XY directions while maintaining the vibration state, the supply tube 2 is moved along the alignment holes 7 arranged in a straight line. It is dropped in 7 and filled. When the vibration is applied in this manner, the spherical component 1 vibrates randomly in the up, down, left, and right directions in the supply tube 2, so that the spherical component 1 can easily move relative to each other. Is between the alignment pallet 8 and the tip of the supply tube 2 (clearance)
It does not get caught in. In addition, since the spherical components 1 are easily moved relative to each other by vibration, the spherical components 1 dropped into the alignment holes 7 are not easily scratched.

During this operation, the spherical parts 1 in the supply tube 2 are arranged in order from the lower part to the alignment holes 7 of the alignment pallet 8.
And the spherical component 1 in the supply cylinder 2 gradually decreases. In this case, a new spherical component 1 is supplied from above the supply tube 2. In this way, the spherical part 1 received first from the outside by the supply cylinder 2 is supplied to the alignment pallet 8 first (first reception / first supply).

The following problems can be prevented by performing the first receiving and first supplying. That is, in a factory or the like, there is a case where solder balls are temporarily fixed to a large number of predetermined positions on a printed circuit board surface by a flux or the like, and then heated in that state to solder an IC or the like. In this case, the solder balls may be oxidized with the passage of time and the quality may be deteriorated. However, as in this embodiment, a spherical component (solder ball)
, The solder balls received first are always supplied to the alignment pallet 8 from the supply tube 2.
Quality deterioration due to oxidation of the solder balls can be prevented.

Although the present embodiment has been described with reference to a spherical component, the present invention can of course be applied to, for example, a screw having a short neck and a polyhedral component. In the present embodiment, the alignment pallet is vibrated by the vibrating table (vibrating means), but the supply cylinder may be vibrated by the vibrating means. Further, FIG. 2 shows a case where a large number of spherical parts are supplied in the vertical direction of the supply cylinder 2,
The components may be supplied in a vertical line.

[0017]

As described above, according to the present invention, since the component supply means (supply cylinder) is moved along the receiving hole of the alignment pallet, the component is dropped into the receiving hole with high probability. In addition, since the parts are supplied to the arrangement pallet in the order received from the outside by the first receiving / supplying means, the parts can be arranged on the arrangement pallet in the order received by the supply cylinder.

[Brief description of the drawings]

FIG. 1 is a perspective view of an embodiment of the present invention.

FIG. 2 is a sectional view of an alignment pallet and a supply cylinder of the embodiment.

[Explanation of symbols]

 BS parts alignment device PS parts alignment unit DZ pedestal IS moving stage 1 spherical component 2 supply cylinder 3 clearance adjustment unit 4 stage pedestal 7 alignment hole 8 alignment pallet 9 vibrating table 11a, 11b linear rail 12a, 12b mounting block 21 mounting plate 22 Support plate

Claims (6)

[Claims] 1. An alignment pallet having a receiving hole for receiving a component, and component supply means for supplying a component to the receiving hole while moving along the receiving hole of the alignment pallet. Features a part alignment device. 2. The component aligning apparatus according to claim 1, further comprising a vibrating means for vibrating at least one of the aligning pallet and the component supplying means. 3. The component aligning apparatus according to claim 1, wherein the component is a spherical component. 4. The component aligning apparatus according to claim 1, further comprising a gap adjusting unit that adjusts a gap between the alignment pallet and the component supply unit. 5. The device according to claim 1, wherein said component supply means comprises a first receiving / supplying means for supplying the components to the alignment pallet in the order in which the components are received from the outside.
The component alignment device according to any one of the above. 6. The component aligning apparatus according to claim 5, wherein said first receiving / first feeding means is formed of a cylindrical member.