Production quality inspection is a very important part of intelligent manufacturing. With the continuous intensification of market competition, manufacturing enterprises must constantly put forward higher requirements for product quality in order to survive and win competition. Here is everything you should know about quality inspection system in Intelligence manufacturing.
Quality inspection system in intelligent manufacturing
The quality inspection system in intelligent manufacturing is a quality inspection information system facing the workshop level. The traditional quality inspection method is difficult to manage all kinds of information uniformly, resulting in a large amount of information in a decentralized state. It takes a lot of manpower and time to analyze and process, and the effect is not optimal. The quality inspection system in intelligent manufacturing can manage and monitor product data, production quality Process level detailed production plan and production scheduling inspection, etc.
Production quality inspection is a very important part of intelligent manufacturing, because with the continuous intensification of market competition, manufacturing enterprises must constantly put forward higher requirements for product quality in order to survive and win competition, so as to enhance the competitiveness of enterprises. For a long time, the workshop quality inspection department hopes that the processing level of the workshop will continue to be in the best state, and the quality problems arising from the processing process can be found, handled and fed back in time. This requires the production workshop to timely feed back the quality information generated in the production process for the relevant departments to analyze and adjust, so as to avoid the loss of processing quality.
Establishment and analysis of quality inspection system
The quality inspection of machining workshop is the process quality control of the machining process for parts. Its main work is to determine the quality requirements and process parameters of the parts to be processed at each process stage according to the process requirements of the parts.
In the subsequent production process, the inspector completes the entry, storage and report of inspection records, and the quality department completes the analysis, statistics, preparation of statements, etc. according to the statistical inspection results.
However, the traditional manual inspection is difficult to grasp the quality status of processed parts in time, and the information provided is not real-time and accurate. It is difficult for managers to mine useful information from the collected historical data. In order to change this situation, we must establish a quality inspection system under a unified information platform. Reflect the production quality status of the workshop in a timely manner, help managers make multi-level and multi angle statistics and browsing of all quality information, have a detailed understanding of the whole process of quality control, and implement the supervision function within the scope of responsibility.
Function module design of the system
The quality inspection system is mainly composed of three links: inspection, analysis and control. According to the quality inspection business process, the function module results of the quality inspection system can be exported, as shown in the figure. The following describes each functional module:
1) Quality plan
The quality plan is that the process personnel establish quality specification information for the parts to be processed in combination with the process information, and form process level quality control specifications and control parameter tables. The specification information includes the quality requirements and standards of the parts’ inspection items, inspection methods, inspection equipment, etc. These information are guided by the part process information, stored in the form of BOM, and can be called repeatedly after being established once.
2) Data collection
Data collection can be divided into automatic collection, semi-automatic collection and manual collection. The system realizes the automatic collection of CMM measurement data through the interface program. The semi-automatic data acquisition system can also be composed of digital display measurement equipment, wireless transmission equipment and data server. When the inspectors detect parts, the inspection results do not need to be recorded by hand, but are automatically sent to the data processing device for storage, so that the upper computer can process the data according to various statistical data processing methods.
3) Quality inspection
In the manufacturing execution system, the inspector selects the appropriate inspection method according to the current production situation, and selects the WIP to be inspected according to the WIP number in the quality inspection system. The system will list all the specified inspection items and inspection standards of the part, which are stored in the form of quality BOM. According to the data collected by the inspector, the system will automatically judge whether the quality is qualified or not according to the quality characteristic standard, and the nonconforming product processing process will be triggered.
4) Quality analysis
The statistical analysis chart can intuitively reflect the quality problems of products. The system can automatically process the relevant data hierarchically, and draw histograms, Pareto diagrams, cause and effect diagrams, and scatter diagrams.
5) Quality control
Evaluate the process processing capacity by calculating the process capacity index. For process control of manufacturing process, SPC technology can be used to draw relevant charts.
6) Quality report
It can automatically generate report files for the quality of workshop production by day, month, year, person, equipment, date and other conditions or composite conditions, store or print them, and submit them to superior departments or other relevant departments (such as technology department and performance department) for reference.
Interaction between quality module and other modules
The interactive production plan between the quality inspection system and other production inspection modules provides the workshop production plan, and the quality inspection system arranges the quality inspection plan according to the production plan.
The WIP inspection system provides the quality inspection system with the serial number of blanks and parts to be processed, and the quality inspection system feeds back the inspection information and quality information of products to the WIP inspection system, so that the workshop production planning department can timely understand the production progress and arrange the replenishment of waste products.
The quality inspection system provides the inventory inspection system with the transfer information of product warehousing and product quality certificate, and the inventory inspection system feeds back the actual product transfer information to the quality inspection system.
The technical resource inspection system provides basic process information and inspection information to the quality inspection system. In this way, the effective integration of information sharing and bottom control is realized in each module of the quality inspection system. Through information flow integration and control integration, real-time quality monitoring is carried out for the whole production process, so as to realize closed-loop quality control. Of course, quality information inspection has also brought good benefits to customer enterprises.