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Quality management apparatus and quality management method

A quality management and quality technology, applied in the direction of comprehensive factory control, program control, instruments, etc., can solve the problems of unclear correlation, failure to consider management items, defects, etc., to achieve the effect of stable quality management

Active Publication Date: 2019-07-19
HITACHI LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, even if product manufacturing is promoted according to this management item, it is difficult to completely eliminate defects, and a large number of defects may suddenly occur
This is because, in the current quality management method, there are management items that have not been considered, items whose relevance is not very clear, and the relationship between quality and management items is not sufficient.

Method used

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  • Quality management apparatus and quality management method
  • Quality management apparatus and quality management method
  • Quality management apparatus and quality management method

Examples

Experimental program
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no. 1 approach

[0031] (System Components)

[0032] figure 1 It is a diagram showing an example of the overall configuration of the quality control system used in this embodiment.

[0033] The quality control system A has a quality control device 1 and a production system 20 . The quality control device 1 is installed, for example, in a data center not shown.

[0034] The production system 20 has a receiving device 21 , a heat treatment device 22 , a cleaning device 23 , a pressing device 24 , a welding device 25 , and an inspection device 26 as devices for producing products.

[0035] That is, the production process carried out in the production system 20 begins with receiving, for example, two material rods by the receiving device 21 (receiving process), and after heat treatment by the heat treatment device 22 (heat treatment process), cleaning is performed by the cleaning device 23. process. Subsequently, the press-fitting device 24 presses the workpiece (press-fitting process), and th...

no. 2 approach

[0190] Next, refer to Figure 12 , the second embodiment of the present invention will be described.

[0191] Figure 12 It is a flowchart showing the procedure of the operating condition change process used in the second embodiment.

[0192] Figure 12 The processing of is performed offline, that is, when the production management system 20 is not working. and, Figure 12 The processing of steps S401 to S404 is the same as Figure 8 Since the processing in steps S212 to S215 is the same as that in Steps S212 to S215 , the description of the respective processing is omitted here.

[0193] According to the second embodiment, it is possible to reduce the influence on the production system 20 because it is the processing during the offline period.

[0194] In addition, in progress Figure 12 In the case of the processing shown, it may or may not be performed Figure 8 The processing of steps S212 to S215.

[0195] Moreover, in Figure 12 Before the processing of step S4...

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Abstract

A quality management apparatus (1) is characterized by having, in order to realize stable quality management: an input device to which is inputted data relating to operation conditions, etc., of devices (21)-(26) in a production system (20) for producing a product; a calculation unit that substitutes values of the operation conditions for a pre-calculated correlation expression and calculates a value derived from the correlation expression; a determination unit that determines whether the quality of a workpiece is good in each step on the basis of the result of the calculation executed by thecalculation unit. The quality management apparatus (1) calculates appropriate values of the operation conditions when the result of the determination shows that the quality is "not good", and sets thevalues in the devices (21)-(26).

Description

technical field [0001] The present invention relates to a technology for a quality management device and a quality management method of a production system. Background technique [0002] With the development of the social situation in recent years, the environment for product manufacturing is undergoing tremendous changes. For example, due to the increase of overseas production, the increase of items purchased from overseas, and the decrease of skilled workers, etc., it is becoming more and more difficult to maintain the technology of product manufacturing. Therefore, product quality management is facing a more severe situation. [0003] The current quality management refers to specifying management items in each process and process, and promoting product manufacturing according to the management items, thereby obtaining a certain quality. However, even if product manufacturing is promoted according to this management item, it is difficult to completely eliminate defects, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05B19/418
CPCG05B19/41875G05B2219/32194G05B2219/32179H05K13/089H05K13/083G05B19/418H05K1/0269H05K3/341H05K3/3494H05K2203/163
Inventor 宫城雅德高森良幸朴胜焕
Owner HITACHI LTD
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