JPH02195407A - Nc data forming device - Google Patents

Abstract

PURPOSE:To shorten the replacing time of a parts supplying cassette at the time of switching a machine sort by providing a CPU with a restricting condition setting means for a cassette array. CONSTITUTION:NC data already determined the cassette array and mounting order is formed by an NC data input means 3 through a CRT terminal 1, and when necessary, the NC data are edited by an NC data forming/editing means 4. Then, NC data not determining the cassette array and mounting order of a machine sort to be produced next to the current NC data are inputted and the restricting condition of the cassette array based upon common parts cassette extraction and parts characteristics is formed by a cassette array restricting condition setting means 7 based upon the inputted result. A mounting order determining means 11 determines the cassette array/mounting order of the NC data whose mounting time is minimized from the formed result by referring a storage device 10 and outputs the NC data to the device 2 through an NC data output means 13. Consequently, the replacing time of the parts supplying cassette at the time of switching the sort can be shortened.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to an NC data creation device for creating NC data in a mounting process.

BACKGROUND OF THE INVENTION In recent years, in the manufacturing industry, high-density printed circuit board mounting processes have become important as products become more diverse, value-added, and lighter, thinner, and smaller. In addition, due to changes in the consumer structure, a wide variety of products, small quantities, and short delivery times are required.

The form of production activities, such as shorter life cycles, is rapidly changing. In the mounting process in such high-mix, low-volume production, it is extremely important to shorten the lot changeover time.

The conventional technique disclosed in Japanese Unexamined Patent Publication No. 61-194507 will be explained with reference to FIG.

Using the CRT terminal 101, NC data is created from the storage device 102 by the NC data input means 103. This N
The C data is generated by the NC data creation/editing means 10 as necessary.
Edit using 4.

The NC data created at this time is randomly input data without consideration of the arrangement and mounting order of the component supply cassettes. The mounting order determining means 106 uses the storage device 105 to store the NC data created in this way.
Then, determine the mounting order and component supply cassette arrangement that minimizes the mounting time. The created NC data was stored in the storage device 102 by the NC data output means 107.

Problems to be Solved by the Invention In such a conventional configuration, although the time for mounting models is shortened, a considerable amount of time must be spent replacing component supply cassettes when changing models. In recent years, when high-mix, low-volume production has become the mainstream production method, there has been a problem in that the time required to replace component supply cassettes when changing models becomes a bottleneck.

The present invention solves these problems by minimizing the time it takes to replace component supply cassettes when changing models.

Means for Solving the Problems The NC data creation device of the present invention has the shortest mounting route, the shortest component cassette movement time, and the shortest switching time when changing models while taking into account the previously determined component arrangement. It creates the minimum amount of NC data, and includes NC data input means, NC data creation and editing means, cassette arrangement constraint creation means, mounting order determination means, and NC data output means.

Function: The NC data creation device of the present invention has the configuration described below.
Based on the NC data created by the NC data input means and the NC data creation/editing means, the cassette arrangement condition creation means sets cassette arrangement conditions that minimize the number of parts supply cassette replacements; The mounting order of the NC data to be mounted next is determined by the mounting determining means,
The NC data output means outputs NC data.

EXAMPLE Hereinafter, an example of the present invention will be described with reference to FIGS. 1 and 2.

In FIG. 1, NC data is created by an NC data input means 3 from a storage device 2 using a CRT terminal. N
The data input to the C data input means 3 is edited using the NC data creation and editing means 4 as necessary. The NC data created at this time is processed NC data in which the arrangement and mounting order of the component supply cassettes have been determined.
This is the process indicated by 5 in FIG. Next, the NC entered above
NC data of the model to be produced next is created in the same way. This is the process shown by 6 in FIG.

Based on the data created by the above NC data input processing, the cassette arrangement constraint creation means extracts common component cassettes (processing shown by 8 in Figure 2) and sets conditions for cassette arrangement based on component characteristics (step 8). Processing indicated by 9 in Figure 2)
I do. The cassette array constraint created by the cassette array constraint creating means 7 is read from the storage device 10, and the mounting order determining means 11 determines the cassette array and mounting order of the undetermined NC data (processing shown at 12 in FIG. 2). )I do. The NC data output means 13 outputs this NC data to the storage device 2 (processing shown at 14 in FIG. 2).

In the above embodiment, the cassette arrangement constraint condition for multiple models was set as the cassette arrangement constraint condition for - models, but the present invention is not limited to this, and the model switching time can be minimized even for many models. The cassette arrangement conditions can be set so that the NC data can be created.

More than Effects of the Invention As is clear from the description of the embodiments, according to the present invention, when model switching occurs frequently, it is possible to simply shorten the implementation time of one model as a condition when creating NC data. By creating NC data that shortens the time for changing models and also shortens the mounting time, it is extremely effective to improve overall productivity.

[Brief explanation of the drawing]

FIG. 1 is a schematic diagram of an NC data creation device according to an embodiment of the present invention, FIG. 2 is a flowchart of a processing procedure in the same embodiment, and FIG. 3 is a schematic diagram of a conventional NC data creation device. 3...NC data input means, 4...N
C data creation/editing means, 7... Cassette arrangement constraint setting means, 11... Mounting order determining means, 13... NC data output means. Name of agent: Patent attorney Shigetaka Awano and one other person

Claims (1)

[Claims] In creating NC data for mounting, the present invention is characterized by comprising an NC data input means, an NC data creation/editing means, a means for setting constraints on cassette arrangement, a mounting order determining means, and an NC data output means. NC data creation device.