J11 The controls and the servo regulator for the drives are located in the control box. The size of the control box varies according to the number of systems that must be controlled. The control unit can regulate up to 6 independent drives. 10 programmes per unit allow unrestricted programming of the parameters (rotation speed of the leader, limitation of the torque, number of rotations of the leader, cycle time, batch counter, process data monitoring). Data storage may also take place, which serves to record all the torque values. The moulding head transforms horizontal rotation into vertical rotation. The feed motion is carried out by a leader. The thread pitch of the leader corresponds to the pitch of the thread to be moulded. The moulding tool is operated with maximum precision with the help of the head spindle sleeve. A clamping sleeve is used to clamp the thread moulder. The drive shaft transfers the drive's torque to the moulding head. By evening out differences in height and length, the moulding head can be installed in every position within the tool. It is also manoeuvrable on holding-down plates. The maximum clearance between the drive and the moulding head is 500 mm. The bevel gear serves to limit the length of the installation space required by the drive. Using the bevel gear is optional. The drive consists of one synchronous servomotor for each moulding head that must be powered. The servomotor is configured according to the thread size. This makes it possible to create different thread sizes in a tool using one control. Thanks to the constant cutting speed, significantly longer service lives are achieved than is the case with mechanical, forced piloted systems. The drive is independent from the press stroke and press motion. The maximum rotation speed is 6000 U/min. A flexible and compact micro dosing unit with a volumetric dosing pump allows for precise and reliable lubrication. The nozzle technology was developed for punching and forming processes. ++ very good + good • satisfactory – adequate – – inadequate electronic thread moulding thread cutting* threaded/ punched nut weld nut Possible uses Thread sizes + ++ + + Tensile strength of the material • • ++ ++ Flexibility ++ – – – – – – Quality Surface ++ • • • (Pull-out) resistance ++ – – – Load capacity ++ + + + Reliability ++ ++ – – – – Time Number of process stages ++ + – – – – Processing time ++ • – – – – Cost Production costs ++ – • – – * as a discrete, downstream process stage Process comparison ELECTRONIC THREAD MOULDING
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