Threading Technology – Clamping Technology 520

641 Tap Holders Soft- synchro Speed- synchro KSN MQL SFM HF EM Accessories Tech. Info Product Finder 7.4 Rigid tapping What is the reason for the outstanding axial force performance of the EMUGE Softsynchro ® tap holders with minimum length compensation? Important feature is the patented designed separation of torque and axial force transmission. Further design features of the EMUGE Softsynchro ® tap holders are: • Clearance-free C-axes by formfitting torque transmission over steel balls • Smooth response of the pre-stressed minimum length compensation after exceeding the constructive defined guiding force by nearly loss-free roll friction of the torque transmission balls in their ball tracks • Minimum length compensation and axial force transmission over pre-stressed elastomer springs • Elastomer springs preventing the tool cutting edge from bracing by their damping characteristics If the separation of torque and axial force transmission is disregarded, an axial fault is caused immediately when starting the thread cutting process, see example of the competition collet holder. Consequently, the axial force immediately increases heavily, see graphs on the preceding page. This is avoided by the practical-related design of the Softsynchro ® . For machine tools not providing the feature of synchronous thread machining it is necessary to use a larger length compensation than the minimum length compensation of the Softsynchro ® holders. EMUGE supplies length compensation holders KSN/HD with collet adaption and internal coolant supply. The advantages of clamping the tool over collets are combined with those of a classic length compensation holder. 7.5 Tool monitoring system DDU4 The new tool monitoring system DDU4 is a newly developed system, consequently following upon the already successful ICS and TTS systems. In addition to the current torque indication, you can now also monitor the axial force, contact-free, in real-time. With the option to set fixed response and breakage limits in N or Nm in combination with the ARTIS process monitoring systems, the following recognition features become possible in addition to the standard functions: • Tool wear • Missing tool • Defective thread holes • Different thread depths • Material contact • Tool breakage Digital signal processing made it possible also to enlarge the measuring range for torque and axial force. These measuring ranges are each subdivided into three steps, each of which can be called off externally. The DDU4 system is available in two versions: 1. Basic solution: DDU4 as “stand-alone system” This is an economically efficient upgrading system for tool monitoring. For both torque and axial force, two fixed limit values in Nm or kN can be set. An integrated LCD display will visualize the curve progress, and serve for entering the requested values. Alarm signals are emitted by one switch each for torque and axial force. In combination with the process monitoring system CTM, the DDU4 system will serve as a 2-channel measuring converter. 2. DDU4 in combination with CTM In combination with the CTM process monitoring system, the DDU4 system will offer you as additional performance characteristics the recognition of: • Tool wear • Defective thread holes • Material contact • Chip clogging • Missing tool • Different thread depths • Tool breakage • Evaluation for statistical purposes