Rail de guidage linéaire AGORA Technique

Consultations and technical advice KULIČKOVÉ ŠROUBY KUŘIM, a.s., offers technical assistance in designing and inspecting motion axes for machine tools equipped with ball screws. This service builds on long-term experience with the application of ball screws and calculation algorithms based on the DIN ISO 3408 international standards for ball screws, as well as cooperation with the Research Centre of Manufacturing Technology of the Czech Technical University in Prague. The objective is to identify and offer to the customer the optimum solution to linear movement based on a ball screw as the basic component for transforming rotary movement to linear. The optimization outcome is a specific actuation design using the most appropriate ball screw characterized by its diameter, lead, nut rigidity and service life, including alternatives employing either a driven shaft or a driven nut. The outcome can be expanded to include a choice of bearings, clutch, motor and embedded transmission, and the effect of actuation control. We also review the maximum speed and buckling of the ball screw designed based on its mounting. Based on the known range of loads and working conditions, we can determine the service life of the actual ball screw and its mounting bearings with the requested degree of reliability. The service offered should help design linear axes of machine tools with the objective of optimizing them based on expected loads and working conditions. Consultations and technical advice : www.ks-kurim.cz/en/services/consultations-and-technical-advice/

Transport ball screws Transport ball screws are used in applications where high accuracy of positioning is not required, such as for example in transporting and lifting devices, wood processing machines, etc. The screw shaft is produced by rolling or whirling and the shaft ends are machined according to the request of the customer. They are equipped as a standard with an APE type of nut, which is a single non-preloaded nut with flange. These ball screws are produced in the T5 and T7 precision classes. Their main advantage is a lower price. Characteristics: Productive and quick production of the screw Non-preloaded nut with backlash 0.015–0.05 mm (depending on the ball screw size) Standard geometric and working accuracy according to DIN ISO 3408 for transport ball screwsTechnical parameters: Diameters from 12 to 63 mm – rolled, from 32 to 100 mm – whirled Recommended pitch up to 10 mm – rolled and up to 30 mm – whirled Precision class T5, T7 Do×n = 80,000, efficiency 93–95 % (according to thread pitch and lubricant) Minimum strength of the shaft material Rm = 650MPa, functional surfaces of the shaft and nut hardened to 58-60HRC Working temperature -20 to +60°CApplications: Transporting mechanisms Wood processing machines Substitution of racks Long actuation assemblies Example of designation: K63x10 – 4/APE TS (ball screws with diameter 63 mm and pitch 10 mm, 4 working threads of the APE single nut with flange, transport design, the standard type 3 of the flange is not pointed out). Transport ball screws : www.ks-kurim.cz/en/ball-screws/transport-ball-screws/

Telescopic ball screws It is a complex assembly of several ball screws screwed in one. Each nut has the additional function of a bearing for the fixation of the next shaft from the assembly of ball screws. The unique construction with mutual bonds of the individual components secures simultaneous turning and actuation of all ball screws at once. In such a way multiplication of the stroke per one revolution of the drive is achieved. The telescopic ball screw replaces hydraulic cylinders, with the advantage of easy control and positioning. The telescopic ball screw takes advantage of the basic properties of the ball screws, in which the highly efficient rolling of balls in the thread profiles of the screw and the nut is used for the transition of the rotary motion into linear. Telescopic ball screws are appreciated for their compact length in comparison with the achieved total actuation. This property can be used at places where it is necessary to solve actuation without the possibility to apply through and long lifting mechanisms, such as for example in the case of various handling platforms. The telescopic ball screw can be used in machine tools with unconventional kinematic structure (hexapods). Telescopic ball screws : www.ks-kurim.cz/en/additional-assortment/telescopic-ball-screws/