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Rotary indexing table accuracy _ how to choose the matching rotary indexing table

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Update time : 2019-04-08 20:26:42
For the precision of the rotary indexing table, it is a meticulous technical selection work, which must be completed by a custom manufacturer or an industry engineer. From the perspective of the manufacturer, of course, the higher the accuracy, the better, and for the rotary indexing table manufacturers Otherwise, because the accuracy is also the embodiment of cost, the accuracy of the brand cam divider is also a part of the quality.
  It must be said that the accuracy of the rotary indexing table is a short board of some low-end manufacturers, a large number of promotional advertisements, so that the product has been greatly rendered, and there are few real announcements about the accuracy of the rotary indexing table, but the quality is The weapon that wins the market, the precision of the rotary indexing table also expresses the information of the product quality from a certain program. The precision comes from the complicated processing of the cam surface by the high-precision processing equipment, and the irregularity of the cam surface structure makes the processing difficulty Large, manual can not be achieved, and different machines will also have different degrees of precision control. At the same time, the setting of machining program parameters is the processing skill of engineering technicians. The cycle guarantee of cam divider accuracy is the raw material used. Another inspection standard, the initial accuracy of the product is up to standard before leaving the factory, and the error after wear will become larger. When the processing equipment and technology are in line, the adoption of raw materials is the main factor.
  The demand for the rotary indexing table is a difficult factor to grasp when selecting the accuracy of the splitter. In addition to the above points, the rotary indexing table manufacturer is the main weapon to ensure the accuracy of the rotary indexing table. In the production of the machine, three-dimensional high-precision measuring equipment is indispensable, and it is also used to produce high-quality and high-precision rotary indexing tables. If it is not possible, it can produce images without these high-precision facilities. For products with a deviation of ±0.002MM, such a statement is greatly discounted.
  Select the rotary indexing table accuracy that meets the above requirements. The above factors must be considered. When the manufacturer selects the precision, especially the high-precision and high-speed rotary indexing table, if it is not sure, it is recommended to conduct on-site inspection of the manufacturer, and Evaluation. At the same time, the accuracy of the rotary indexing table can be reflected in the trading contract. In short, the accuracy of the rotary indexing table is the embodiment of the brand and the embodiment of the quality. The true choice of a rotary indexing table is recommended. The technical parameters and accuracy are recommended to be quantified. I hope this article in Xiaobian can help you in your selection.
index drive
  The accuracy of the rotary indexing table is the main factor in the brand and quality of the rotary indexing table. The content of the precision covers many aspects, so the small series will talk about the manufacturing precision and the precision of the product itself.
  The accuracy of the rotary indexing table can be known literally. The machining accuracy of the cam (which we call the indexing cam) is a major influencing factor, that is to say the choice of processing equipment mentioned by the rotary indexing table manufacturer. It will affect the processing precision of the cam. The cam in the rotary indexing table is a complex curved surface structure. The processing capability and processing parameters of the processing equipment itself will affect the overall structure and surface roughness of the cam lobe, and these are just cams. In the process of splitting, it is the key to the smoothness and smoothness of the rotation when it comes into contact with the cam roller.
  The cam roller is a small bearing mounted on the turret. The bearing itself has a certain gap due to the rotation. Therefore, the selection of the cam roller will have a certain influence on the accuracy of the rotary indexing table, and the deviation of the bearing installation is also One of them. What's more, there is a deviation between the design and installation of the housing and the mechanism of the rotary indexing table. In this case, it is difficult to input the force shaft when the high-precision rotary indexing table is often used, that is, the rotary indexing table manufacturer is in the rotary indexing table. When the factory commissioning is performed, the accuracy deviation is small.
  From the point of view of the use of the rotary indexing table accuracy, generally in the use of the condition of the rotary indexing table from two aspects, one is the positioning accuracy, which is what we call the repeat positioning accuracy, the output shaft drive mechanism from a work The deviation from the other station, the high-precision rotary indexing table can reach ±20-30sec, but this factor is not absolute, because according to the size of the driven mechanism, such as the disc, where the rotary indexing table is select. It is necessary to make a comprehensive design and consideration of the mechanical disc of the transmission to ensure that this mechanical parameter achieves a good effect.
Another type of rotary indexing table used precision is the running precision, that is, the runout precision of the rotary indexing table output shaft. The runout accuracy is mainly related to the running speed of the rotary indexing table. Therefore, as with the positioning accuracy, it is necessary to select The project is being controlled.
  In addition, the precision maintenance of the rotary indexing table during use is also very important. Regular inspection and maintenance of the equipment, so that the entire body is in good working condition, is to ensure the accuracy of the rotary indexing table and extend the service life,Necessary conditions.