JPS6117611B2 - - Google Patents

Description

[Detailed Description of the Invention] In the production of home appliances, etc., the diversification of market needs has led to an increase in the number of models, and at the same time, the promotion of further automation and labor-saving to improve productivity has become important. It is increasing.

Furthermore, with the trend toward multi-model production, there are many issues such as: process management becoming more complex and complicated at production sites; handling of parts and equipment becoming more complex and complicated; and especially an increase in the number of model changeovers in the assembly process. A problem is occurring.

The present invention solves the problems related to the above-mentioned items, and aims at synchronized production of the sub-assembly process and the final assembly process, and shortening of model changeover time.

Conventionally, in order to combine the sub-assembly and final assembly processes in the assembly process, the completed sub-units were stored in a plastic case or magazine in the sub-assembly process and then supplied to the final assembly process.

This method has the following drawbacks in terms of management and assembly efficiency.

Various subunits assembled in the subassembly process are supplied in accordance with the progress of the final assembly process, but as the number of model changes increases, losses tend to increase in terms of managing fractions, etc.

On the other hand, from the viewpoint of productivity, it takes time to re-handle the plastic case or magazine once it has been stored (mechanization is generally disadvantageous from an economical point of view), and magazine supply. The transportation route for this process becomes complicated, and the equipment and control costs are relatively high.

The present invention solves the above-mentioned conventional problems by using a special pallet that connects the subassembly process and the final assembly process, and one embodiment thereof will be described below with reference to FIGS. 1 to 7.

In Figure 1, 1 to 4 are subassembly process lines that assemble subunits that are part of the product, 5 is a stock shelf for large parts, and 6a and 6b are assembly lines that complete assembly in each subassembly process line 1 to 4. Pallet storage device with finished subunits, 7
8 is a line for the final assembly process, in which the assembled and organized pallets shown in FIG.
52, 53, and 54 are assembled into the main body base 55.

9 is a device that automatically disassembles the assembled and organized pallets after the assembly work is completed, and each pallet after disassembly is returned to a predetermined position by a return device 10.

The stock devices 6a and 6b have more than twice the number of lanes as lines 1 to 4 in the sub-assembly process, and respond when the stock amount decreases below a certain safe stock amount according to the progress of line 8 in the final assembly process. Issue production instructions for model and quantity to the sub-assembly process line. That is, line 8 of the final assembly process and lines 1 to 4 of the sub-assembly process are connected to stock devices 6a and 6.
Through b, replenishment type synchronous production becomes possible.

The basic structure of the pallets circulating in this assembly system will be explained with reference to FIG. 21, 22,
23 is a pallet whose basic dimensions are P, P', and 2P' in the vertical and horizontal directions, and each pallet 21, 2
2 and 23 have jig blocks 31 and 41 as shown in FIGS. 3 and 4, and the assembled subunit 3
It has the function of holding 2, 42 while maintaining its position and posture.

As mentioned above, the assembled subunits 32, 4
2 are placed on pallets 30, 40 in FIGS. 3 and 4, and stored in storage devices 6a, 6b.

On the other hand, each pallet is assembled and assembled in a predetermined order in response to a call to the modular pallet combining and assembling device 7 shown in FIG. 1, resulting in an assembled and organized pallet 50 as shown in FIG.

In line 8 of the final assembly process, the package is transported and assembled in this packaging state. An example of the product after the final assembly process is shown in Figure 7.

In addition, to connect the pallets together, as shown in FIG.
The coupling is performed by penetrating the coupling portions 61a and 62a provided at 62.

Thus, according to the present invention, It becomes easier to change models during the final assembly process.

Through the replenishment production system, it is possible to synchronize production between the final assembly process and the sub-assembly process, making it easy to manage work-in-progress items and mechanize handling.

Mechanization of assembly work in the final assembly process becomes easier.

[Brief explanation of the drawing]

FIG. 1 is a schematic equipment layout diagram showing an embodiment of the assembly method according to the present invention, FIG. 2 is a perspective view showing the basic structure of a pallet in one implementation method of the present invention method, and FIGS. 3 and 4 5 is a perspective view of a pallet before joining on which assembled subunits are placed during the subassembly process, FIG. 5 is a perspective view of a pallet shown in FIG.
FIG. 4 is a perspective view of the assembled and organized individual pallets, FIG. 6 is a sectional view of the part where the individual pallets are combined, and FIG. 7 is a completed assembly of an embodiment of the method of the present invention. FIG. 3 is a schematic perspective view of an assembly assembled in a process. 6a, 6b...Stock device, 21-23...
Palette, 51-54...Subunit, 60...
...Coupling means, 61a, 62a...coupling parts.

Claims (1)

[Claims] 1. Using a pallet that is equipped with connecting parts that can be connected to each other by connecting means such as pins and has a size that matches the mounted parts, and in the sub-assembly process, parts of the final assembled product are placed on the pallet. In the sub-assembly process, a plurality of pallets on which multiple types of sub-units are placed are stored in a storage device, and in the final assembly process, each sub-unit corresponding to the model to be assembled is placed on the pallets. An assembling method characterized in that the pallets placed on the pallets are assembled by the stocking device, each pallet is joined at its joining part by a joining means, and then the subunits on each pallet are assembled to each other to obtain a final assembled product.