Ge of the gear Need developing badly in China
At present, Chinese gear trade test instrument | Instrument and apparatus lack very much, arise from this 20 million multi gear box assembly quality of China's annual output lacks the reliable test data. In order to makeover the backward state of the inherent quality of the Chinese gear trade spare part, must pay attention to and strengthen the development of test instrument and apparatus.
Probably only 300 gears factory has basically related measuring room of instruments in Chinese gear trade at present, total nearly has three multi coordinate measuring instruments 200, these instruments mostly import from foreign countries. Of various kinds ' Machinery, photoelectricity, numerical control) More than 1000 ges of the gear, more than 30 meauring centers of the gear among them, the workses of these instruments have companies such as foreign MAAG, Klingelnberg, Hofler, CarlMahr, M& M,etc., there is TaylorHobsom, CarlMahr, Zeiss, SIP the intersection of circular degree and appearance, metroscope, optical dividing head, roughometer, projector, the intersection of Engineer and all kinds of more than 500 ges such as being apparent Wan of company. Other about 200 gears factory seldom has a fine measuring instrument, some factories are besides omnipotent material measure, there is not a ge.
In the ge, more than about 10 the test instrument of the assembly, worm gear tester, the change-speed gear box assembly test bed and transaxle China of test bed do not exceed 50. There are no indispensable instruments such as noise appearance, torsional oscillation appearance,etc. in a lot of factories. The quality of necessary requirement for part of the products, part and assembly carries on rigorous detection and control in the gear manufacturing process, therefore advanced applicable measurement technique and instrument are indispensable conditions.
In all kinds of machine factories, no matter the gear driving member is made by oneself or external buying, should equip gear, whorl, multiple key ge, otherwise can't control the manufacture quality of the driving member. At present, the gear, whorl, five metals of Chengdu of China of measuring instrument of multiple key | Tool research institute, Kazakhstan quantity accurate quantity appearance factory,etc. can basically meet the demands. Even if China such as the meauring center of the gear, gear cutting tool meauring center, gear pair, worm gear tester, dynamic guide screw survey meter of laser can also supply. But expect very much to technology but the abundant users of the financial resources, can consider introducing the foreign gear meauring center.
Driving members such as the gear, endless screw, screw bolt,etc. must be casting iron, aluminum alloy of very high with complicated structure precision or weld the container body to support, these container bodies have a large number of accurate holeses and levels that need to measure the size accuracy and precision of mutual position. So each gear factory should allocate different specification, three coordinate measuring instruments of the precision.
In order to further improve the product quality of the Chinese gear trade, improve the trade competitiveness, should allocate all kinds of corresponding accurate test instruments as soon as possible. During a few years in the future, the large and medium sized gear enterprises of China should allocate three coordinate measuring machines, meauring centers of the gear and other accurate survey meters and form a complete set in the intact central measuring room, the small business should allocate the essential fine measuring instrument too, thus guarantee the quality of the Chinese gear products.