Wang Zhengqing, general counsel of the Machinery Association, led a delegation to visit CHUAN HONG
Wang Zhengqing, general counsel of Taiwan Machinery Association, led by: Deputy Secretary-General Chen Zhichang, General Manager of Rongchang Machinery, Lu Zhongyong, General Manager of FCS, Zheng Dingliang, Chairman of Dingsheng Machinery, Hou Jingzhong, Deputy Secretary General of Taiwan Indian Economic and Trade Association, Manoki, and Yonglong Mechanical and Electrical Engineering Chairman Liu Yadong and a group of more than 20 heavyweight industrial officials visited the CHUAN HONG CHUAN HONG Precision Tool in Tianliao District, Kaohsiung City, and was personally received by the company’s chairman Wu Shengui.
With over 40 years of rich experience in the development and production of thread gauges for precision tools, CHUAN HONG has successfully broken through the key to technology and process, and innovatively developed planetary roller screws, linear transmission components with low backlash, excellent positioning accuracy, high load and high reliability. Provide global precision technology and precision machinery industry applications, in line with Industry 4.0.
CHUAN HONG Precision Tools was established in 1983. It mainly produces thread bolt gauges, ring gauges, and thread cutting tools. It has a global layout and sets up factories in Thailand and China. To ensure perfect quality, it imports tool microscopes and universal tools from Germany. Length measuring instruments and calibration measuring tools will attach each ex-factory product with an inspection certificate to establish a high-quality position in the industry.
In order to meet the needs of all walks of life, CHUAN HONG Precision added a screw tap production line and thread cutting tools in 1989, fully computerized management in 1992, passed TUV certification in 1998, and established a calibration laboratory in 2010. Certification items include parallel and taper ring gauge , Passed the National Certification Foundation () certification in 2014, established the Windows version of the ERP cloud management system in 2016, and developed the planetary roller screw in 2019 and obtained the invention patent.
Among them, Wu Shengui, chairman of CHUAN HONG Precision Tools, said that the planetary roller screw theory was proposed as early as a hundred years ago, because the key part is called the roller screw of the three-dimensional gear, and the friction coefficient, the load capacity of the screw and the screw must be considered, and Many complicated factors such as force distribution, restricted structural design and processing process threshold, make production difficult. In order to assist Taiwan’s machine tool industry to upgrade, Chuanfeng Precision has successfully solved the production technology of the key components of the planetary roller screw, which is an important roller ultra-high precision screw, through the integration of technology, processing and design. It can be regarded as pioneering Taiwan’s global linear transmission New fields and leading positions.
Wu Shengui pointed out that the main structure of the planetary roller screw is planetary screw, high-precision screw, nut, with high-precision linear motion, high rigidity, large output, long life, high load, low backlash, low noise and precise positioning, etc. Different performance has become one of the important components of various mechanical precision positioning, linear drive transmission and measurement systems.
The planetary ball guide screw is mainly composed of a screw, a nut, a steel ball, a fixed seat, a wiper and a return pipe; the circulation mode of the ball can be divided into an inner circulation type and an outer circulation type, which can withstand larger loads and is suitable for high Lead and double threaded rod; the groove shape of the ball can be divided into semicircular thread and Gothic thread. The semicircular thread can bear a larger load. It is usually used for preloading double nut type ball screw. German type thread is usually used for single nut type ball lead screw.
It is worth mentioning that the roller screw uses cylindrical rolling elements, a very superior transmission mechanism, 990T static load, high dynamic load of 205T, 3000rpm high speed, 11,500rad/s2 acceleration, and has a larger load capacity than ball screws. And longer service life, 1mm small lead, the roller screw does not need a backflow device, can reach a faster speed than the ball screw, and reduce the noise value.
Wu Shengui described that planetary motion is like a planet revolving around the sun. Even in the vast universe of hundreds of millions of planets, the celestial body revolves in exactly the same trajectory. The planetary roller screw uses the movement of the screw and the precision screw between the nut. , The sliding of the screw is converted from screw engagement, rotary motion, to linear motion transmission assembly, its sturdy mechanism design can be applied to various bad environments, suitable for all-electric dental plate grinder, all-electric plastic injection machine , All-electric thread rolling machine, automatic thread precision screening machine, servo punch, folding machine, broaching machine, 3D printing and other high-speed, high-load, high-precision applications.
Wu Shengui further pointed out that the application of planetary roller screws is conducive to industrial upgrading. Since the product was launched, it has received a wide range of domestic and foreign orders. However, he found that the transaction rate of inquiries from mainland China is higher than 60%, while domestic orders are actually lower than 5%. Below, in comparison, the industry on the other side is more brave to try; Wu Shengui appealed to the government that machinery manufacturing capacity is a demonstration of national strength. Under the influence of the global epidemic, Taiwan's machine tool factories are sorrowful, and the government should vigorously support, stimulate and assist Taiwan's machinery and equipment industry to upgrade , It is recommended to provide a 25% preferential investment deduction for Taiwan’s machinery and equipment industry to strengthen the global competitiveness of Taiwan’s machinery and equipment and effectively stimulate Taiwan’s economy.