Precision parts processing factory of commonly used detection methods have?
From the history of development of the industry, the improvement of precision machinery processing and manufacturing and precision measurement technology are inseparable.
It is an important means to ensure the quality of precision parts
Along with our country mechanical industry, aerospace, national defense industry fast development, the small size precision parts processing after testing the accuracy of the proposed higher requirements, precision measurement of small size problem has become the measure of new problems, especially the hole diameter measurement.
Pore size measurement is one of the main content of the length measurement technology, according to the measuring instrument and contact with precision parts are being tested, can be divided into contact measurement and non-contact measurement.
Pneumatic belongs to non-contact measurement, mainly used for measuring tolerance zone demanding parts, such as piston, optical devices, etc.
The contact measurement mainly has the following three: 1.
Mechanical measurement method: to be measured in the form of mechanical transmission of measure precision parts processing parts, commonly used measuring tools have a vernier caliper, inside diameter micrometer, smooth limit gauge, inner diameter micrometer, etc.
This kind of measuring instrument has the advantage of simple structure, low cost, stable performance, deficiency can only measure the ordinary is the size of the aperture, bad operation for fine holes diameter measurement, the measurement process is often want to rely on manual adjustment, the visual results, it is difficult to realize the automation of high precision measurement, the measuring instrument of activity space is restricted, adjust the inconvenient operation, measurement speed is slow, especially for precision holes, and the measurement of deep hole, will be more difficult.
General smooth gauge testing method while it is possible to test for a qualified hole parts, but is due to the contact measurement, easy to cut precision parts processing parts, the recent emergence of digital electronic caliper, accuracy is not high also, when measuring the mechanical inertia is big, slow, this kind of measuring instrument is suitable for medium and medium size of aperture measurement precision, is the manufacturer of precision machining used a kind of measuring method.
Three coordinate measuring method: three coordinates measuring machine is a kind of optical precision measuring instrument, is the most advanced measuring head of jilin city, all kinds of guide rail technology, measuring technology, positioning technology comprehensive application of the model.
Three coordinates measuring machine in measuring aperture three focal point of a circle is usually used when the principle of measured hole on the circumference of a circle to measure any three coordinates, and then calculate the equation of the system, can be measured according to the calculation formula obtained hole diameter.
The above information is derived from the hardware machinery processing factory Xavier company in shenzhen.
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