Management of the hottest special measuring tool

2022-08-13
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Management of special measuring tools

in some large and medium-sized machining enterprises, it is inconvenient to use general measuring tools to measure the size of some parts that need to be tested, or even impossible to measure at all, so special measuring tools must be designed. However, many enterprises do not pay much attention to the management of special measuring tools. Some measuring tools do not have a certificate of conformity, and the water level in the water tank is automatically controlled by 1 water level controller, which is included in periodic verification. Often after using it for a period of time, it has been unqualified, but it continues to be used for measurement, affecting product quality. Here, we introduce our experience in the management of special measuring tools for reference

1. Design, manufacture and inspection of special measuring tools

first of all, enterprises should design special measuring tools by the design department according to the processing and measurement needs of mechanical parts. During the design process, design review, verification, design confirmation, etc. should be carried out, and then managed according to ISO9000 standard documents and management methods. If the design drawing needs to be changed, it must be approved by the measurement department and the manufacturing department

the special measuring tools made according to the design drawings shall be inspected by the quality inspection department using the full inspection method. Those who pass the inspection shall be engraved with the number, verification number and relevant measurement dimensions with a steel seal, issued a certificate of conformity, and then sent to the measuring tool warehouse

2. The receiving of special measuring tools and the weekly inspection for many years

the user department receives new special measuring tools from the measuring tool warehouse, which can be used only after being inspected and confirmed by the measuring room, registered, changed cards and issued a certificate of conformity. The inspection date, inspection cycle and validity period shall be indicated on the inspection certificate, so as to be included in the normal weekly inspection plan. The length of the verification cycle should be determined according to the use frequency, the use environment, the structure of the measuring tool itself, etc

3. Daily management of special measuring instruments

the special measuring instruments returned from the measuring room must be registered and recorded in time, and managed by a specially assigned person, and the borrowing and returning system must be strictly observed. The management personnel shall submit the special measuring tools for inspection according to the weekly inspection plan in exchange for a new certificate of conformity

if a certain measuring instrument is found abnormal or cannot be confirmed during use, it should be sent to the measuring room for detection and confirmation in time. Users should be responsible for the daily maintenance of measuring instruments. Relevant departments should also conduct supervision and assessment

4. Scrapping, recycling and utilization of special measuring tools

scrapping of special measuring tools must be recognized and recovered by the measurement room to prevent them from entering the production site

for some special inspection tools, which are scrapped only because several parts do not meet the requirements due to complex design, troublesome manufacturing or high cost, or some can be reused after grinding. In order to reduce waste, enterprises can be specially handled by professional technicians. If it can be reused, it must be tested and approved by the measurement room and a certificate of conformity must be issued

practice has proved that if we pay attention to strict management of self-made special inspection tools except continuous fiber reinforced semi-finished products and injection molding parts, the product quality will be effectively guaranteed. (end)

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