The heart of the servo press kit YJKP from Festo is the cold-formed Carry drive element by Swiss company Eichenberger Gewinde. The electrically driven Eichenberger ballscrew converts the rotary motion of the motor into linear motion in the piston rod.
Eichenberger Gewinde is dedicated to the rolling – specifically cold forming – of thread screws and the production of ballscrews and leadscrews. The latter are now used widely in many areas of linear technology. However, as the demands of users have increased, asking for solutions that are both resource and energy efficient, so have the requirements expected of the threaded spindles. Modern drive technology in particular is viewed differently these days. Where once mechanical parts were visible, today concealed drives are needed. They have to perform their functions – preferably invisibly and silently – in the smallest possible spaces. For a lifetime.
Electric servo presses, also known as joint modules, are used for press-fitting, forming, stamping or punching. Specifications include high precision, short cycle times, very high pressing forces and, in many cases, high speeds. Modern servo presses also collect and evaluate a lot of data, e.g. on stroke, ram position, feed speeds, braking and acceleration ramps. Many presses are oversized, and users report that just 10 % of the power of a preconfigured press is utilised.
The servo press power pack YJKP from Festo tackles precisely this problem, offering an efficiency of over 90 % to deliver optimum drive performance. The Carry element combines speed as well as precision and thus establishes optimum conditions even where space is at a premium. The well proven integrated tubular ball return enhances the robustness and load capacity. The cold-rolled Carry can handle press applications of up to 17kN over a lifetime of more than 10’000 km without relubrication.