Edit the Bisheng fixture structure 3. The top body is matched with the spindle of the lathe. The tip is tightly matched with the hole in the tip body. It can overcome the spring force and slide freely in the hole. When machining, first use the tip to withstand the center hole of the short end of the crankshaft, and then shake the tailstock. The handle is used to hold the center hole of the right end of the part with the active top, and push the crankshaft to the left to make the end face of the workpiece contact with the top sleeve. With the lever to drive 1 piece of rotation, the turning can be added. 7. The two top tips of the clamp ensure coaxial Degree, the top sleeve controls the axial accuracy. After inspection, the axial dimension and coaxiality of the crankshaft are within the tolerance range, which improves product quality and processing efficiency.
3 It should be noted that during assembly, the top-drilling process hole communicates with the top body hole to make the tip smoothly fit and free to slide; the electrochemical gas sensor research project undertaken by the Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, recently passed The technical appraisal organized by the Changchun Branch of the Chinese Academy of Sciences. The identification means that the research results indicate that China's electrochemical gas sensor technology has reached a wide range of applications in the international advanced water sheep electrochemical gas sensor, which can be used in the safety inspection, environmental monitoring and production process control of chemical mining, military and other industries. The electrochemical gas sensor has the advantages of small volume detection speed, fast and accurate, convenient carrying and on-site direct detection and continuous detection, and the performance is superior to the optical detection methods such as optical and spectroscopy which are dominant in the past.
In the past, China’s research in this area was lagging behind, and the sensors needed were completely dependent on imports. The Changchun Institute of Applied Chemistry of the Chinese Academy of Sciences began this technology research two years ago. They combined basic research with applied research, conducted special technical research, and successfully solved the series of key technical difficulties such as sensor leakage performance attenuation catalyst poisoning. The product has the advantages of high sensitivity and easy assembly.
Wang Shang
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