The accuracy of machine tools is affected by a variety of environmental and physical factors, such as errors in base castings, guide rails, bearings, etc., or errors caused by thermal effects of parts, as well as geometric errors that occur during assembly... How to effectively reduce these errors This is a problem that manufacturers urgently need to solve. In addition to improving machine tool accuracy by optimizing the assembly process and performing compensation, adopting a precision positioning system is also an effective method. In the design of machine tools, closed-loop systems are often used, that is, linear gratings are used to provide feedback on the linear axis of the machine tool to achieve the best dynamic position measurement capability.
Committed to finding professional technical solutions to effectively improve the overall accuracy and performance of machine tools.
On the latest LH800 horizontal comprehensive machining center developed by Heqi, its three linear axes are equipped with FORTiS-S gratings as standard. The machine tool of this machining center adopts a three-axis full linear rail configuration and a moving column structure design. It is equipped with a worm gear worktable and Heqi's independently developed control software. The worktable accuracy reaches 0.001 degrees. Customers can also choose a double-rotating automatic exchange table to greatly improve processing efficiency.
Using the laser calibration system to reduce machine tool errors during the assembly process, and performing accuracy verification and optimization after the machine tool is formed, can indeed effectively improve the overall accuracy of the machine tool. Renishaw's XK10 laser calibrator was introduced to improve the basic accuracy of machine tools during the assembly process, and was paired with the existing XL-80 laser interferometer to be responsible for complete machine verification and optimization.
Renishaw XK10 breaks through many limitations of traditional measurement tools and shows outstanding characteristics in many aspects. For example, in terms of measurement distance, marble squares are generally only about 2m in length. For machine tools exceeding 2m, multiple measurements are required, which means that the accuracy is easily affected. The measurement distance of XK10 can reach 30m. For straightness measurements exceeding 30m, XK10 can splice and connect multiple measurement results through the automatic elimination of slope error function. In terms of data integration, handwritten measurement results in the past are not only likely to increase human errors, but also make it difficult to effectively integrate and use the data. XK10 can easily store data for internal control or automatically generate measurement reports for customers. Since measurement values are automatically stored and used to generate reports, inconsistent measurement results between different operators are avoided. In terms of measurement efficiency, traditional collimators are complicated and time-consuming to set up when performing multi-axis measurements (such as parallelism). However, the parallelism measurement function of the XK10 is specially designed for machine tool assembly. Reporting and other aspects can meet the needs of operators.
