In recent years, the rapidly developing movable articulated coordinate measuring machine has the characteristics of being light, flexible, simple and practical, and is particularly suitable for performing measurement work that is difficult to access by other instruments on the shop floor. The joint-type three-coordinate measuring instrument exhibited by Fardarm in the United States adopts high-precision grating and built-in balance system. The instrument has a temperature compensation sensor inside, which can automatically correct and compensate the influence of ambient temperature. The developed CAM2 measurement software can be used for reverse engineering. Product development, production testing and statistical analysis, accuracy up to 0 025mm / 12m ball. The Ampg movable joint measuring system exhibited by Zettmess in Germany has 6 rotary joints. The joint arm material is made of alloy aluminum with surface anodized carbon oxidation and CFK pipe with light weight and firmness. The measurement repeatability can reach 0 04mm/18m ball. . An articulated coordinate measuring machine produced by Poli, Italy. Poli articulated three-coordinate measuring instrument Flow optical three-coordinate measuring machine is a variant of the coordinate measuring machine, suitable for mobile use in the workshop. During measurement, the measurement system projects a beam of light onto the workpiece to be measured. Based on the optical triangulation measurement principle, the optical tape image is read by the camera, and after analysis by the digital image processor, the three-dimensional coordinates of the workpiece can be accurately calculated. The application of the Atos mobile optical coordinate measuring machine developed by Hong Kong Baoli Machinery Co., Ltd. in the three-dimensional measurement of the mold. (Finish) According to the number of screws, it can be divided into single-screw, twin-screw, triple-screw, and multi-screw. Twin-screw can be divided into parallel twin-screw and conical twin-screw. The most significant difference between parallel and conical twin-screw extruders is the screw machine. The geometry of the cylinder is different, which leads to many differences in structure and performance. Although the characteristics of the two are different, they have their own advantages. Parallel Twin Screw Barrel,Extruder Screw Barrel,Plastic Extrusion Screw,Injection Molding Screws And Barrels Zhejiang Jinteng Machinery Manufacture Co., Ltd. , https://www.jintengmachine.com