JP2745186B2 - Micro work alignment method - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement in a method of aligning a minute work such as an electronic part, particularly a minute chip part such as a magnetic head chip by using a transfer machine.

[0002]

2. Description of the Related Art Chip components such as a large number of electronic components need to be aligned in preparation for processing such as fixing to a jig for packing (packaging), assembling, and processing. Conventionally, a transfer machine (a transfer type work arrangement device) has been used for aligning such chip components. This transfer machine swings the pallet, which is a container for storing chip components, and gives left and right vibrations.
It has the function of dropping and aligning it into holes of the same shape as chip components formed on the pallet.

[0003]

However, according to such an aligning method using a transfer machine, if the chip components are small and light to a certain degree or more, the chip components can be slid even if the pallet is rocked and vibrated. Cannot be aligned and cannot be aligned. Therefore, an attempt was made to reduce the friction coefficient by changing the material and surface roughness of the pallet, but it was impossible to align minute and lightweight chip components with a transfer machine.

SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to propose a method for aligning minute and lightweight chip components by a transfer machine.

[0005]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention provides a method for dropping the above-mentioned minute work into a plurality of concave portions provided in the container by swinging or swinging a container containing the minute work. In the method for aligning a small work in the container, the dummy work having a shape larger than the concave portion is mixed into the small work of the container, and the movement of the dummy work is performed by rocking or rocking the container while rocking. The gist of the present invention is to drop a minute work into a concave portion and align it with the container.

[0006]

[Function] When the container swings, the dummy work is moved,
The micro work is dropped into the hole of the container by the moving action. Therefore, even a small and lightweight minute work can be aligned by the transfer machine.

[0007]

An embodiment of the present invention will be described below with reference to the drawings. FIGS. 1 to 3 show an example of a transfer machine used to carry out the micro work alignment method of the present invention. In the figure, 1 is an eccentric cam, 2 is a speed reducer, 3 is a variable speed motor, 4 is a swing bearing A, 5, 8 and 11 are rotating pins, 6
Is an oscillating bearing B, 7 is an oscillating air cylinder, 9 is an air cylinder turning pin attachment, 10 is an air cylinder rod joint, 12 is a turning pin support, 13 is a lower table, 1
4 is an upper table, 15 is a spring, 16 is a pallet frame, 17 is a plate, 18 is a spring mounting shaft A, 19
Is a spring mounting shaft B, 20 is a pallet (container), 21
Denotes a pallet left side plate, 22 denotes a pallet right side plate, and 23 denotes a linear guide.

The pallet 20 is a chip component (micro work)
The pallet frame 16 oscillates while repeating left and right vibrations as described below, and the chip components are dropped into holes or holes at the bottom of the pallet 20 and aligned. The depressions or holes are slightly larger than the outer shape of the chip component and are formed in the same shape.

(I) Left-right vibration (horizontal vibration) The eccentric cam 1 attached to the shaft end is driven by the variable speed motor 3, and the plate 17 is pressed by the rotation thereof to vibrate the pallet frame 16. In this case, plate 17
Is urged by a spring 15 so as to always contact the eccentric cam 1. The variable speed motor 3 drops the chip parts into the recesses or holes at the bottom of the pallet 20.
The speed is set to give a frequency suitable for the type of chip component. For example, a frequency of 100 to 1500 rpm
The vibration amplitude is about 1 to 5 mm.

(Ii) Swing By reciprocating the swing air cylinder 7, the upper table 14 is swung right and left around the rotating pin 5 of the swing bearing A. The swing angle is about -20 ° to 0 ° to + 20 °, and the swing speed is set by changing the speed of the swing air cylinder 7.

(Iii) Arrangement of chip parts The left pallet 21 and the right pallet 22 of the pallet have the same thickness as the pallet 20, and the chip part 24 slides on the pallet 20 as shown in FIG. It is dropped into the hole 25 and aligned.

In the transfer machine described above, if the chip components are minute and lightweight as described above, they may not be applicable.

Therefore, in the present invention, a pseudo chip component (dummy) having a size larger than the chip component and not dropping into the hole of the pallet is mixed into the chip component, stored in the pallet, and the transfer machine is operated. As a result, when the pallet swings or vibrates, the pseudo chip parts are not dropped into the holes in the pallet, but are carried along with the movement and dropped into the holes. Can be done.

[0014]

As described above, according to the present invention, it is possible to apply and align even a small and lightweight chip component to which a transfer machine could not be applied conventionally, thereby greatly improving productivity. I do.

[Brief description of the drawings]

FIG. 1 is a schematic plan view of a transfer machine.

FIG. 2 is a schematic front view of the transfer machine.

FIG. 3 is a schematic side view of the transfer machine.

FIG. 4 is a view showing an alignment state by a transfer machine.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Eccentric cam 3 Variable speed motor 4 Oscillating bearing body A 15 Spring 16 Pallet frame 17 Plate 20 Pallet 24 Chip part 25 Hole

Claims (1)

(57) [Claims] 1. A method for arranging a micro-work, wherein the micro-work is stored in a plurality of recesses provided in the container by oscillating or vibrating a container storing the micro-work, and the micro-work is aligned with the container. A dummy work having a shape is mixed with a minute work of a container, and the minute work is dropped into a concave portion by the action of moving the dummy work by swinging or swinging the container while swinging or vibrating, and is aligned with the container. Micro work alignment method.