JPH04205606A - Mounting process control system - Google Patents

Abstract

PURPOSE:To detect the mistake of parts or the collision of the parts on a display screen by simultaneously displaying the shape patterns of the respective electronic parts when the parts mounting locus of mounting NC data is displayed, on a screen. CONSTITUTION:Plural personal computers 2 are connected with EWS (engeneering work station) 1 of a surface mounting device through the use of a cable for 'E-tharnet(R)' net LAN 4 and plural mounting machines 3 are respectively connected with the respective personal computers 2 by the cables for RS-232C 5. When the parts mounting locus of mounting NC data is displayed on a screen here, the shape patterns of the respective electronic parts is simultaneously displayed. Thus, an operator can detect the mistake of the parts or the parts collision only on the screen, the mounting parts can be checked without executing the trial mounting of the parts by the mounting machine, the trial mounting parts at every changing product types are saved and working time is shortened.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention provides an electronic component mounting machine that uses a
Concerning a mounting process management system for checking data.

[Conventional technology]

Conventionally, regarding a mounting machine that automatically mounts electronic components on a printed circuit board, Japanese Patent Application Laid-open No. 1-145900 (HO
5K 13104) and Japanese Unexamined Patent Publication No. 192200/1999 (
As seen in HO5 (13100), etc., mounting NC is performed from input information such as position information and component information of electronic components to be mounted.
Data is created.

In this case, the x, y, z coordinates and component position of the component to be actually mounted are input from the computer keyboard, and the input mounting NC data is simulated on the computer screen.
1. The NC data is confirmed in Step 1. Conventionally, only the so-called component mounting trajectory connecting the mounting points of each component to be mounted is displayed.

[Problem to be solved by the invention]

In the conventional technology, since the mounting NC data is checked only by the component mounting trajectory, even if there is a mistake in the part, it cannot be detected, and it is not possible to detect the mistake in the part or the mismatch between the parts until the part is actually mounted. You will notice a conflict between the two.

For this reason, it is essential to check the mounted components after inputting the mounting NC data into the mounting machine and testing the components.Moreover, this must be done every time the model (board) is changed, and trial mounting is required. This results in not only unnecessary parts being wasted, but also increased working time.

The present invention has been made with these problems of the prior art in mind, and its purpose is to prevent parts errors and parts from being detected when confirming mounting NC data on a display screen. The object of the present invention is to provide a mounting process control system that can detect collisions between components.

[Means to solve the problem]

In order to achieve the above objective, Honkiro's mounting process control system uses mounting NC data created from input information such as position information of electronic components to be mounted by the mounting machine and component information on a screen that displays the component mounting trajectory. When confirming by simulating the above, it is equipped with a storage means that records the name, shape, size, etc. of the electronic component for each electronic component, and when displaying the component mounting trajectory, the pattern of the electronic component to be mounted is displayed. It is characterized in that it is read out by a storage means and displayed on the screen.

[Effect]

According to the present invention, when displaying a component mounting trajectory according to the mounting NC data, the shape and size of the electronic component are read out from the storage means based on the component information of the electronic component read from the NC data, and the shape and size of the electronic component are read out from the storage means. Since the pattern is displayed on the display screen, mistakes in electronic components can be detected on the screen, and component collisions can be detected by the overlap of component patterns on the screen.

〔Example〕

Embodiments of the present invention will be described with reference to the drawings.

First, Figures 2 and 3 show the overall configuration of a centralized management system using EWS (Engineering Workstation) for surface mount devices.
S, (2) is a personal computer, (3) is an electronic component mounting machine, EWS (1) is connected to multiple computers (2) using an Ethernet LAN cable (4),
A plurality of mounting machines (3) are connected to each personal computer (2) through an R3-232C cable (5).

Here, in E W S (]), input start time of various boards inputted by the operator, production quantity, mounting NC
Create a daily production plan based on data file names, etc.
According to this production plan, NC data is sent to each personal computer (2), and actual data is collected from each personal computer (2).

In addition, in each personal computer (2), E W S (1
) is sent to each mounting machine (3) to perform component mounting, and performance data for each mounting machine (3) is collected and sent to the EWS (1).

On the other hand, when creating mounting NC data, EWS (1)
Based on the NC data input by the worker in 1. A simulation of component mounting is performed on the display screen (6), and the NC data is optimized, that is, rearranged.

In this case, the name, shape, and
It is equipped with a file called parts library that records the size, etc., and when outputting the mounting trajectory of parts on the screen (6), the part pattern is displayed simultaneously while extracting the part shape and size from the parts library. This allows workers to immediately detect incorrect parts.

FIGS. 4 and 5 show a program that makes it possible to draw such a component in flowchart 1. FIG. 1 shows the component mounting trajectory (L) and component pattern (L) obtained by this program. A display example of p) is shown.

When drawing parts to be installed, there are two conventional modes: a continuous drawing mode that draws continuously from the first part to the last part by operating the start key, and a continuous drawing mode that draws continuously from the first part to the last part by operating the start key. In addition to two modes: a step drawing mode in which drawing is performed one step at a time, and a collision detection drawing mode.

This is a mode in which drawing is started continuously in the same way as continuous drawing mode by operating the collision detection key, and when a collision part is detected, drawing is stopped at that part, and continuous drawing is resumed by operating the resume key. , which continues drawing while detecting collisions between parts.

That is, since the size of the part is extracted from the parts library at the same time as it is drawn on the screen (6), the adjacent pitch of the part is calculated at the same time using this, and collisions are detected by calculating the adjacent pitch.

In this case, the part for which a collision has been detected is displayed in a different color so that it can be distinguished from other parts when displaying the part pattern on the screen (6). This allows the worker to visually locate parts that are colliding with each other.

When the mounting trajectory display routine shown in FIG. 4 is started, first, NC data is input in step order, and after setting the first step (1=I), the system enters a standby state for mode selection.

At this time, when the start key is operated to select the continuous drawing mode, the parts drawing routine shown in FIG. 5 is executed for the first step.

That is, when this routine starts, step N
Extract the part ID from the NC data of O, and select this part I.
Read the width and length of the part from the parts library using D, and then read the part coordinates (X
+, Y++θ) and the width read out.

Based on the length, the four corners A and B of the part (P) shown in Figure 6 are
.

The coordinates of C and D are calculated, based on which the shape pattern (p) of the part is displayed on the screen (6), and the process returns to the mounting trajectory routine.

Then, when the first step drawing is completed, the second step
Part drawing is similarly executed for the NC data of the step, and thereafter, drawing is executed continuously up to the final step (Nth step), and the process returns to the mode selection standby state.

In addition, in the standby state after the start, if you operate the detection key to select the collision detection drawing mode, parts will be drawn in the same way as described above, but at this time, based on the size of the parts read from the parts library, adjacent Since the pitch is calculated and the adjacent pitch is checked, the part in which a collision has been detected is drawn in a different color, and then the process returns to the standby state.

This allows the operator to easily recognize parts collision.

If component drawing is to be continued after this, by operating the restart key, component drawing is continued from the next step of the component in which the collision was detected.

On the other hand, in the standby state, if you operate the step drawing key °- to select the step drawing mode, one part is drawn and then returns to the standby state, so each time you operate the step drawing key, you draw one part. Now you can proceed with drawing.

By the way, in this embodiment, in order to be able to check the data in more detail on the screen (6), a reverse race function is added.

In other words, when you operate the above-mentioned standby state/reverse trace key, after erasing the part pattern corresponding to the NC data of the current step number, the step number is decreased by 1, the state returns to the standby state, and the previous step is returned. Form the screen state in .

Therefore, by using the step drawing key and the reverse tracing key, you can trace step by step before and after a part you want to focus on, such as a part where a collision has been detected in the detection drawing mode, which is expected to improve work efficiency. can.

〔Effect of the invention〕

Since the present invention is configured as described above, it produces the effects described below.

When displaying the component placement trajectory of the mounting NC data on the screen, the shape pattern of each electronic component is also displayed at the same time, allowing the operator to detect component errors and component collisions just on the screen, making it easier for the mounting machine to It is now possible to check mounted components without testing parts, saving trial parts each time a model is changed, and significantly shortening work time.

[Brief explanation of the drawing]

The drawings show one embodiment of the mounting process management system according to the present invention, and FIG. 1 is a layout diagram showing an example of a display screen;
2 and 3 are respectively a perspective view and a block diagram showing a centralized management system for surface mount devices, FIG. 4 is a flowchart 1 showing a mounting trajectory display routine, and FIG. 5 is a flowchart showing a parts drawing routine. FIG. 6 is an explanatory diagram of the coordinates of electronic components. (3)...Mounter, (6)...Display screen, (L)...
・・Component mounting trajectory, (p) ・・Component pattern.

Claims (1)

[Claims] (1) In a mounting process management system that confirms mounting NC data created from input information such as position information and component information of electronic components to be mounted by a mounting machine by simulating the component mounting trajectory on the display screen, Equipped with a storage means that records the name, shape, size, etc. of each electronic component, and when displaying the component mounting trajectory,
A mounting process management system characterized in that a pattern of an electronic component to be mounted is read out from the storage means and displayed on a screen.