In the automation system, more turntable machines are used. On the one hand, the intexing
transmission needs to ensure the accuracy of the system, on the other hand, it must also ensure the speed of the turntable machine to ensure the efficiency and use effect of the entire automation system.
The connection between the disc and the indexer of the turntable is a topic of concern in the design of the automation system. The indexer itself has a certain degree of precision, and after being connected with the disc, the accuracy range of the system will be enlarged, from the error of the angle system. In other words, even for large-diameter discs, the accuracy of most commonly used industries meets the requirements for use. The connection of parts between machinery will have a certain impact on accuracy. Therefore, when we do automation design, we try to avoid or Use less indirect connection, which guarantees to a certain extent the accuracy error caused by the connection between the mechanical components.
Therefore, we advocate the direct connection between the automatic system using the cam indexer and the disc. The flange-type indexer has a flange-type short shaft structure, which has the function of positioning, and the small flange can play the role of fixed connection. For some large-diameter discs, most of them use hollow flange connection, such as DA type indexer. The flange surface is connected to the disc. The circumferential fixing method makes the two components almost non-existent because of the mechanical connection. The impact on accuracy.
However, in actual applications, there will be design problems, and the direct connection between the disc and the indexer cannot be guaranteed. For example, in the later design transformation, technological innovation and other production requirements, the intermediate flange used for connection often used, large It must be said that the intermediate connection mechanism has an impact on the accuracy of the entire system. It is recommended that the automation system with higher accuracy requirements, especially when speed and accuracy requirements coexist, should be connected to the disc and the indexer. Make effective assessments. Because when the distance between the indexer and the system disc increases, not only the radial accuracy, but also the axial runout must be considered. The high-speed use of the system will have a greater impact on this method.
The direct connection between
mechanical components will reduce to a certain extent the impact of component movement deformation on accuracy. If it is necessary to extend the connection distance between the disc and the cam indexer, then it is still recommended to negotiate with the indexer manufacturer for non-standard The processing form ensures that the output shaft of the indexer is integrated, which will reduce the impact on the accuracy of the disc during use.
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