JPS63256322A - Printed board assembly system - Google Patents

Abstract

PURPOSE:To aim at shortening the lead time of production of printed boards by grouping printed boards having one and the same order of process steps, the same kind and a high degree of compatibility of components in one and the same group, and by charging the plates in consideration with the preparatory condition of an automatic inserting machine. CONSTITUTION:The order of charging is determined at the step 1 in accordance with a production plan S1 which is externally determined. Then, at the step 3, a printed board is charged into a production line in accordance with the order of charging. At the step 4, the assembly of thus charged printed board is completed in one step, and is stored on an automatic rotary rack. When a demand is delivered from an automatic inserting machine (I/M), at the step 5, a printed circuit board which does not require a change in preparation from printed boards stored in the rotary rack is determined, and is recharged. Thereafter, the steps 4, 5 are repeated until the assembly is completed.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a method for assembling a printed board, in particular, a method for assembling a printed board by automatically inserting child parts, and the automatic insertion method differs depending on the product. Concerning the assembly method of printed boards.

[Conventional technology]

The conventional printed board assembly method involves an externally determined production plan and the processing capacity of a worker who selects one of the printed boards piled up in front of an automatic insertion machine (hereinafter referred to as I/M). It is made up of.

Next, a conventional printed board assembly method will be described in detail with reference to the drawings.

FIG. 6 is a flowchart showing an example of a conventional printed board assembly method. The printed board assembly method shown in Figure 6 is based on the production planning step JIK determined externally.
In step 2, insert the I/MjfC board.

In step J3, if the substrate is different from the substrate previously processed in the I/M, setup processing is performed in step J4. After the setup processing is completed, assembly processing is performed in step J5, and in J6, the products are transported to the next I/M and piled up.

In step J6, the worker basically follows the first-in, first-out method to load the board into the machine/M from among the piled up boards.After that, steps 2-5 are repeated until the assembly is completed. .

[Problem that the invention seeks to solve]

The above-mentioned conventional printed board assembly method takes the aim of setting up parts each time a different type of printed board is used when an insertion machine is used.

In other words, each time the type of printed circuit board is different, it is necessary to set the required number of electronic component cartridges to be assembled in the I/M parts selection supply unit, change the position of the board holder,
If the NC information of M needs to be exchanged and there are many, 1
It can easily add up to 2-3 hours for setup changeovers. However, when assembling printed boards in large quantities in small quantities,
There is a drawback that production efficiency is reduced because parts setup and NC information exchange occur frequently.

There is also a method of supplying all available parts to the parts selection and supply section and reducing the number of parts setups to
M, which may become expensive, and is not a fundamental solution.

In addition, even if input takes into account the reduction in the number of setups at the input source, not all board types will pass through the same I/M as shown in Figure 7, and interrupts and jumps will occur. , had the disadvantage that it was not a sufficient solution.

[Means for solving the problem]

The printed board assembly method of the present invention includes a file section that stores printed board information such as parts used, shape, and nine processing steps, and a production plan as a first step based on the information stored in the file. a first processing section that determines the input order; and a second processing section that stores the substrates processed according to the input order from the first processing section on a movable rotating shelf that is a temporary buffer.
and, as a second step, a third processing unit that determines the loading order from the movable carousel based on the storage information of the movable carousel and the type information of the processed boards of each I/M that is the destination. It consists of:

〔Example〕

Next, embodiments of the present invention will be described in detail with reference to the drawings.

FIG. 1 is a flowchart showing one embodiment of the present invention.

According to the production plan S1 determined externally, the input 1 is determined in step S2.The production is completed in step 3 and stored on the automatic rotating shelf.When a supply request comes from the I/M, the input is placed on the automatic rotating shelf in step 5. Among the stored print circuits, select a print board that does not require setup change and reload it. After this, repeat step 4.5 until assembly is complete.

FIG. 2 is a flowchart showing step 2 in FIG. 2 in detail. In step 1, a GT code as shown in FIG. 5 is assigned to each order, and in step 2, input groups having the same code are created.

According to the rules determined in step 3, orcs in the input group are G/Ted to determine the lot. In step 4, a manufacturing instruction table, 9-stage change information, etc. are created from the determined lot information.

FIG. 3 is a flowchart showing details of step 2'jk in FIG.

Fig. 4 is a flowchart showing step 5 in Fig. 2 in detail, in which the printed board for which the setup change is to be performed first is selected from the automatic rotating shelf, which is a buffer, based on the setup status of the I/M at the destination. It is.

〔Effect of the invention〕

In the printed board assembly method of the present invention, printed boards with the same process order, the same type of printed boards, and a high degree of commonality in assembly parts are input into the same group, so the printed boards can be assembled continuously in one setup. It has the effect of being able to do things.

Also, even after loading, a buffer called a moving carousel can be set up to keep the I/O
It is possible to flexibly respond to line fluctuations because subsequent machining/M input is performed taking into account the setup status of M. These things make it possible to reduce the number of setups, lengthen the time it takes to assemble without setup, shorten printed board production lead time, and reduce equipment JTT.
This has the effect of improving the rate of f.

[Brief explanation of drawings]

FIG. 1 is a flowchart showing one embodiment of the present invention, and FIG.
．． Figure 3.4 is a flowchart showing details of the processing procedure of the printed board assembly method shown in Figure 2, Figure 5 is a graph showing the riGT code, Figure 6 is a flowchart showing a conventional example, and Figure 7 is an overview of the procedure. It is a flowchart which shows. 2nd figure rod 5 figure net otsu concave

Claims (1)

[Claims] A file section that stores information on Group Technology (hereinafter referred to as GT) for printed boards that have various parts used, shapes, processing methods, and procedures, and an externally determined production plan that is stored in the file. a first processing unit that determines the order in which printed boards are loaded based on information from the first processing unit; a second processing unit that stores printed boards arriving from outside on a movable rotating shelf based on control information from the first processing unit; A printed board assembly method characterized by including a third processing unit that determines the printed board to be loaded from the movable carousel to the destination based on the storage information in the second processing unit and the information of the destination from the movable carousel. .