JPH06246240A - Inspection device of work - Google Patents

Abstract

PURPOSE:To provide an inspection device of a work wherein the working rate of a line is enhanced, the yield of the line is enhanced and the correction work of an operator is simplified. CONSTITUTION:The inspection device of a work is so formed that a previously prepared nondefective work 2 is transferred on a pallet 1 instead of a defective work 2 when a defect of the work 2 has been discriminated by inspection.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a work inspection device in an assembly line for various products.

[0002]

2. Description of the Related Art In recent years, in various assembly lines, improvement of line operation rate and improvement of line yield (non-defective product rate) have become problems.

A conventional work inspection apparatus will be described below with reference to the drawings. FIG. 2A is an external perspective view showing the transfer state of components in the conventional work inspection apparatus, and FIG. 2B is a flowchart for determining defective products by the work inspection apparatus.

In FIG. 2A, the pallet 1 on which the work 2 is placed is indicated by an arrow A by a transfer unit (not shown).
It is configured to be conveyed in the direction and temporarily stopped at the position P near the work inspection unit 4. Further, the transfer chuck unit 3 is arranged so that the work can be transferred between the position P and the inspection unit 4. 8 is ID
The terminal 9 is an ID card.

The operation of the work inspection apparatus having the above structure will be described below. First, the work 2 on the pallet 1 is moved by the transfer chuck unit 3.
Are transferred to the work inspection unit 4. When the work inspection unit 4 determines that the work 2 is defective, the ID terminal 8 connected to the work inspection unit 4 sends information about the defective product to the ID card 9 provided on the pallet 1. After that, the work 2 determined as a defective product is returned to the pallet 1 as it is. Then
The pallet 1 on which the defective work is placed is conveyed again in the direction of the arrow A, passes through the downstream unit, and is taken out as a defective work by the final finished product take-out unit to a defective product storage unit (not shown).

Then, the operator corrects the defective work taken out by the finished product take-out device, and reflows the work from the optimum position of the line according to the contents of each defect.

[0007]

However, in the above-mentioned conventional structure, the pallet on which the defective work is placed also flows, so that the downstream unit passes through the pallet. That is, while the defective work is flowing, the downstream unit cannot operate, so the line operation rate,
That is, the yield of the line is reduced. In addition, the operator corrects the defective work taken out by the final finished product take-out device,
The trouble of reflowing the work to the optimum place on the line depending on the content of each defect was also a problem.

The present invention solves the above-mentioned conventional problems, and an object thereof is to provide a work inspection apparatus having a high line operation rate.

[0009]

In order to achieve this object, the work inspection apparatus of the present invention uses a non-defective product prepared in advance instead of the work when the work is determined to be defective by inspection. It is configured to transfer the work.

[0010]

With the above configuration, even when a work is determined to be a defective product by the work inspection unit, a non-defective work prepared in advance is transferred to the pallet instead of the work, and the downstream work is performed. The unit can always be operated.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A work inspection apparatus according to an embodiment of the present invention will be described below with reference to the drawings.

FIG. 1A is an external perspective view showing a work transfer state in a work inspection apparatus according to an embodiment of the present invention, and FIG. 1B is a flow chart at the time of defect determination.

In FIG. 1A, the pallet 1 on which the work 2 is placed is carried in the direction of arrow B by a carrying unit (not shown) and temporarily positioned at a position Q near the work inspection unit 4. It is configured to be shut down.
A sub-tray 5 is arranged near the work inspection unit 4. The sub-tray 5 is capable of storing a plurality of works 2, and is divided into two areas, and a plurality of non-defective works are stored in advance in one area. Further, the transfer chuck unit 3 is arranged so that the work 2 can be transferred between the position Q, the sub-tray 5 and the inspection unit 4.

The operation of the work inspection apparatus having the above structure will be described below.

First, the transfer chuck unit 3 transfers the work 2 on the pallet 1 to the work inspection unit 4 as indicated by arrow C. When the work inspection unit 4 determines that the work 2 is non-defective, the work 2 is indicated by an arrow D.
Returned to.

On the other hand, when the work 2 is determined to be a defective product, the work 2 is transferred onto the defective product area 6 as indicated by an arrow E, and accordingly, a previously-formed good product work on the non-defective product area 7 is generated. It is transferred onto the pallet 1 as indicated by a wavy arrow F. With the above operation, non-defective workpieces are always placed on the pallet 1. Therefore, the downstream unit is always operated, and the defective product correcting operation by the operator can be simplified by taking out only the non-defective product in the completed product extracting device.

[0017]

As described above, according to the present invention, even when a work is determined to be defective by inspection, a non-defective work prepared in advance is transferred onto the pallet instead of the work. As a result, the downstream unit can be operated at all times, the line operating rate can be improved, the line yield can be improved, and the defective product repair work by the operator can be simplified.

[Brief description of drawings]

FIG. 1A is an external perspective view showing a transfer state of a work in a work inspection apparatus according to an embodiment of the present invention, and FIG. 1B is a flowchart for determining a defective product of the apparatus.

FIG. 2A is an external perspective view showing a transfer state of a work in a conventional work inspection apparatus, and FIG. 2B is a flowchart for determining a defective product of the apparatus.

[Explanation of symbols]

 1 Pallet 2 Work 3 Transfer chuck unit 4 Work inspection unit 5 Sub-tray 6 Defective product area 7 Good product area 8 ID terminal 9 ID card

Claims (1)

[Claims] 1. An inspection means for inspecting whether or not a work placed on a pallet whose positioning is temporarily stopped at a predetermined position during transportation in a product assembly line is a non-defective product, and a plurality of works. The first storage means capable of storing the work, the second storage means for storing a plurality of non-defective works in advance, and the work can be stored in the first work only when the inspection means determines that the work is not good. First transfer means for transferring to the first storage means, and the second storage along with the transfer of the work judged to be defective by the first transfer means to the first storage means. A work inspection apparatus comprising: second transfer means for transferring a non-defective work piece previously stored in the means onto the pallet whose positioning is stopped at the predetermined position.