Development of Gear Measuring Instrument in China

The gear measuring instrument is a necessary testing instrument for gear manufacturing enterprises and is the main equipment for upgrading the technical equipment of the gear industry. During the tenth five-year period, the development and manufacture of gear measuring instruments in China achieved a leap-forward development. In the past few years of the 11th Five-Year Plan period, China's gear measuring instruments have continued to develop steadily. The number of major manufacturers has expanded from three to seven. Industry insiders believe that the increase in manufacturers has exacerbated competition, but it has also promoted the improvement of product quality, and the price of equipment has declined year by year.

In terms of specific products, Harbin introduced a series of high-precision L-series products on the basis of the 3900 series, and launched a series of high-performance JA series products based on the JD series. It is understood that Harbin is intensifying the development of a large gear measuring center L300A according to market demand. The mainframe of the instrument adopts a five-coordinate measuring system, and uses high-performance components such as a linear motor, a direct-drive motor, and a high-precision grating. The spindle adopts a patented technology of a Mizuno static composite bearing shaft. The maximum modulus of the measurable gear is 50mm. The outer diameter is 3000mm and the maximum mass is 15t. Qinchuan Machine Tool Co., Ltd. is also about to launch a 3-meter gear measuring instrument. Industry experts pointed out that on-line measurement of gears is a major development trend of future gear measurement technologies. China has also achieved important results in this respect. For example, Beijing University of Technology and Ha Quan jointly developed a domestically-developed gear online rapid measuring machine; at the same time, domestic CNC gear hobbing machines, The gear shaper and gear grinding machine have developed integrated measuring systems.

Gear meter applications are also growing. In the past few years, more than 400 CNC gear measuring centers have been added to the gear industry in China, which has enabled our gear testing to reach international standards. The versatility and high performance of the CNC gear measuring center make it a major choice for comprehensive gear geometry testing, machine tool adjustment detection and gear tool inspection.

Prior to the 1990s, China imported various types of mechanical gear measuring instruments (such as Maag, Klingelnberg, Hofler, CarlMahr, Zeiss, and Osaka Seiki mechanical instruments) and domestically-made mechanical gear measuring instruments for a total of more than 1,100 sets. Although most of them are still in use, the speed of elimination has accelerated significantly. As the first gear error measurement instrument in China, nearly 100 sets are currently in use, especially in the detection of motorcycle gears.

It is worth pointing out that the country is paying more and more attention to the development of gear measuring instruments. In 2008, the key projects of the 863 Program included the development of a 3-meter large gear measuring instrument and a bevel gear measuring instrument. In 2010, the ultra-large gear laser tracking on-site measurement system was included in the major special projects of high-end CNC machine tools and basic manufacturing equipment.

In short, the rapid development of China's gear industry provides great opportunities for the development of gear measuring instruments and their technologies in China. The development of gear measuring instruments will also promote the technological progress of China's gear industry.