JPH05183295A - Electronic parts mounting equipment - Google Patents

Abstract

(57) [Summary] [Purpose] The situation before and after a failure can be accurately grasped, and the cause can be investigated and repaired easily in a short time. [Structure] An operation status data holding unit 1 for collecting and holding operation status data, a data instruction unit 2 for instructing a period and a type of data required for maintenance, and data obtained by extracting data from the operation status data holding unit. It is provided with a service data generation unit 3 for generating the data instructed by the instruction unit 2 and a service data output unit 4 for outputting the generated service data, and the state before and after the failure is not observed. Also makes it possible to accurately understand the occurrence status of a failure and to easily investigate the cause of the failure and repair it.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electronic component mounting apparatus for mounting electronic components on a circuit board, and more particularly to an electronic component mounting apparatus for facilitating maintenance such as repair at the time of failure and regular maintenance.

[0002]

2. Description of the Related Art A conventional electronic component mounting apparatus (hereinafter referred to as a mounting machine) has a structure as shown in FIG. 6, and a control unit 21 of the mounting machine 20 includes a CPU 5, a memory 6 and a CRT.
10 is provided, and a keyboard 7 for inputting commands to the control unit 21 is provided.

If the mounting machine fails, the situation shown in FIG.
The cause was investigated and repaired using the procedure shown in. That is, when a failure occurs, first, the event after the failure occurs is grasped. At that time, it can be understood only by a warning lamp that can be observed from the outside or an event displayed on the CRT 10. This CRT
In 10, the operating status of the mounting machine 20 which is written in the memory 6 is displayed every moment, and only the latest status can be grasped. After grasping the situation after the occurrence of a failure in this way, various tests are further conducted and observed to investigate the cause and make appropriate repairs.

[0004]

However, in the above-mentioned configuration, there is little information on the operating conditions before and after the occurrence of a failure of the mounting machine, especially before the occurrence of the failure, and if the failure occurrence situation is forgotten, it is a reproducible event. In the case of, it becomes impossible to understand the cause, it becomes extremely difficult to investigate the cause, and it takes a lot of time and effort, and the person who finds the failure of the mounting machine and the operator who investigates the cause of the failure and repairs it is different. In this case, if there is a problem in the accuracy of information transmission, it is not possible to grasp the situation more accurately, and it takes a long time to accurately investigate the cause and repair it.

In view of the above conventional problems, it is an object of the present invention to provide an electronic component mounting apparatus capable of accurately grasping a situation before and after a failure and easily performing a cause investigation and a repair in a short time. .

[0006]

An electronic component mounting apparatus according to the present invention comprises an operation status data holding section for collecting and holding operation status data, and a data instruction section for instructing a period and type of data required for maintenance. And a service data generation unit that extracts data from the operation status data holding unit and generates data instructed by the data instruction unit, and a service data output unit that outputs the generated service data. .

Preferably, it further comprises a communication control device for exchanging service data via a communication line.

[0008]

According to the present invention, the operation status data holding unit collects the operation status of the mounting machine and holds the operation status for a certain period of time by the above-mentioned configuration. , The service data generator edits the necessary data before and after the failure as instructed, and the service data is output from the output unit to the CRT.
Since it is displayed on the screen or output to a magnetic disk or a memory card, the cause can be investigated and repaired easily in a short time based on the service data.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An electronic component mounting apparatus according to an embodiment of the present invention will be described below with reference to FIGS.

FIG. 1 shows a mounting machine 2 according to an embodiment of the present invention.
2 shows the configuration of the control unit 21 in FIG.
Shows the appearance of.

In FIGS. 1 and 2, reference numeral 1 is an operation status data holding unit for holding the operation status data 11 of the mounting machine 20. Reference numeral 2 is a data designating unit for designating a period, a type, etc. of the operation status data necessary for generating the service data 12, and a command is inputted from the keyboard 7. Reference numeral 3 is a service data generation unit that generates service data 12 necessary for grasping before and after the occurrence of a failure from the operation status data instructed by the data instruction unit 2. 4 is the generated service data 1
2 to CRT10 for workers who investigate the cause of failure.
This is a service data output unit that displays the information on the screen or outputs it to the magnetic disk 8 or the printer 9.

FIG. 3 is a flow chart showing the procedure for investigating the cause when the mounting machine fails.

The mounter holds the operation status data 11 in the operation status data holding unit 1 during normal operation. This operation status data is, specifically, for each component supply cassette number, the number of errors during component adsorption stored for each nozzle number, the number of times the nozzle has been used, each component supply cassette number,
Number of errors when mounting components saved for each nozzle number, number of nozzle jumps, amount of vertical movement of the XY table,
Horizontal movement amount, vertical correction amount when parts are mounted, horizontal correction amount, rotation correction amount, recognition error count, recognition camera usage time, component supply cassette usage count, voltage supplied to controller, CPU board Voltage, the number of write errors on the magnetic disk, the number of board failures such as memory boards at initialization, and the presence or absence of communication port failures.

Data is held at regular intervals.
For example, as shown in FIG. 4, if the retention period is set to a maximum of 7 days, 1 minute data is retained from the present to the past 8 hours, and 10 minute data is retained from 8 hours to 24 hours. However, the data every 30 minutes from 2 days to 4 days before is retained, the hourly data from 5 days to 7 days ago is retained, and the data before 8 days is sequentially deleted. That is,
Initially, the data that was held every 1 minute was deleted 8 minutes after the data was collected, and the data for 9 minutes was deleted from a certain starting point data.
The data for 9 minutes is erased, and then the retained data is similarly reduced.

By using the operation status data 11 held in this way, by instructing the data instructing unit 2 from the keyboard 7 when the failure occurs or in the periodical maintenance, the data instructing unit 2 is required to generate service data. The service data 12, which is necessary data, is collected and edited in the section 3. The edited service data 12 is directly displayed on the CRT 10 by the service data output unit 4 in the form of numerical values or graphs. Further, by outputting to the magnetic disk 8, a statistical analysis process can be performed by a personal computer or the like. For example, as shown in FIG. 5, a control chart such as a frequency distribution of the number of errors and a PN chart is created. Here, by setting a certain threshold value and comparing it with the threshold value, it is possible to know whether or not the event that has occurred is a failure, and further to know the causal relationship with the failure location, and to perform repair.

In this way, by grasping the situation before the occurrence of the fault, and after grasping the situation after the occurrence of the fault in the same manner, various tests are further conducted and the operating situation is grasped in the same manner, so that the cause can be easily determined. It is possible to investigate and make appropriate repairs in a short time.

In the above embodiment, the operating status data is the number of errors, but other data may be used. In addition, an example in which a threshold value is set to determine whether or not a failure has occurred is compared with this, but other methods may be used. Further, regarding the data holding method, the example in which the accumulated data is held for a certain period of time is shown, but all the data may be held or another holding method may be adopted.

Further, as indicated by a virtual line in FIG. 1, a communication control device 22 may be provided so that an external CPU can process the data via a communication line, or data can be held in an external storage unit. .

[0019]

As described above, according to the present invention, it is possible to accurately obtain the necessary information regarding the operating status of the mounting machine before and after the occurrence of a failure, forgetting to observe the event, and grasping the event without reproducibility. It is also possible to easily find out the cause and repair it in a short time because it is possible to easily understand the exact situation even if the person who finds the failure of the mounting machine and the operator who investigates the cause of the failure and the person who performs the repair are different. it can.

[Brief description of drawings]

FIG. 1 is a block diagram showing a configuration of a control unit of a mounting machine according to an embodiment of the present invention.

FIG. 2 is an external perspective view of the mounting machine of the embodiment.

FIG. 3 is a flowchart of a failure cause investigation and repair procedure in the same embodiment.

FIG. 4 is an explanatory diagram of an example of a data holding method in the embodiment.

FIG. 5 is an explanatory diagram of an example of a cause investigating method in the embodiment.

FIG. 6 is a block diagram showing a configuration of a control unit in a conventional mounting machine.

FIG. 7 is a flowchart of a failure cause investigation and repair procedure in a conventional example.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Operation status data holding section 2 Data instruction section 3 Service data generation section 4 Service data output section 11 Operation status data 12 Service data 22 Communication control device

Claims (2)

[Claims] 1. An operation status data holding section for collecting and holding operation status data, a data instruction section for instructing a period and type of data required for maintenance, and data obtained by extracting data from the operation status data holding section. An electronic component mounting apparatus comprising: a service data generation unit that generates data instructed by the instruction unit; and a service data output unit that outputs the generated service data. 2. A communication control device for transmitting and receiving service data through a communication line is provided.
Electronic component mounting apparatus described.