The FMU Series
CNC coiling and bending machines

These new types of machines have been designed for high speed generation of precise springs and parts in all shapes.

Operating principle

• Being guided through a horizontal/vertical straightener, the wire is fed into the machine. The movement of the rotating wire is CNC controlled to guarantee exact positioning of the wire against the tools.
  
  
• The basic machine is equipped with 7 independently programmable axes with servo drives:
  
  
  • 2 for the rotating wire feed
  • 2 for the combined coiling/bending unit
  • 1 for universal slides
  • 1 for spinner support
  • 1 for free choice
    
    For the swivel quill one more axis is indispensable. Options for 4 more axes are available.
    
    
• The machine carries four individual base tables to accept additional universal slides or accessories. These slides may be mounted in any position whatsoever - transversable, tiltable or two side by side. The universal slides do also serve as base units for spinner attachment.
  
  
• The multipurpose tooling system can easily be interlinked with the bending system. Thus even parts with complex 3D structures can be generated with the standard tooling set, and without additional set up time. Programming is done in seconds by the Windows based WPS system.
  

What makes the machine so unique?

• The combination of rotating feed and swivel quill dramatically reduces secondary operations: less slides and less tools; no more supports, plates, guides etc.
  
  
• Its plain language programming system. By assigning actual measurements to basic elements like infeed length, spring diameters, number of coils and bending angles, the WPS will create a complete operating program in seconds using a library of standard tooling for all material data.
  
  
• The FMU design brings down set up time to fractions of usual standards resulting in unmatched output figures when working batch production.
  
  
• Trouble shooting by picture presentation and inbuilt "help routines"

CNC controlled rotating feed with two or three pairs of feed rolls.	CNC controlled swivel quill; bend return length 25 - 200 mm	Laser scanning of leg position and diameter control
Slides and spinners (loopers) mounted side by side	Programming by assigning the parameters for coiling and bending	Colour TFT active matrix, 3D graphic display of the programmed parts
Table with one slide, alteration of the angular position in steps of 15 degrees	Two slides, arranged in parallel on the basic table	Tools - A: feed rolls, B: spinner inserts, C: coiling inserts, D: coiling wire guides