Since the introduction of our first turret punch press, Finn-Power has offered different types of tool control mechanisms to suit the different material types and thicknesses encountered when punching and forming. These tool control mechanisms vary depending upon the type of control and series of machine. They allow precise control by tool in a program for such functions as ram speed, tool shut height, speed and acceleration control of the sheet, depth of punch into the die, etc.

Tool control mechanism selection in NC Express. Setting the selected tool control in NC Express.

These controls allow the user to reduce setup times by having pre-programmed established depth settings in the program or pre-setting mechanically adjustable form tools. This is done with either mechanically adjustable form tools using the bottom stroke with previously established precise tool lengths or upforming modes - or in the case of the Siemens 10.5 Series and later models - the deep draw mode.

These modes also allow for the reduction in noise and sheet marking during punching by using programmed ram speeds in the program along with special modes such as quiet punching.

The ram can also be controlled to work with specialty tools, such as those used to produce offset flanges, embosses, and ribbing. Other modes control letter stamping tools, and, in the case of servo-electric ram machines with the upforming option, special foot tools for forming flanges, curls, and flat folds, etc.

Another special tool control mode is that of programmable punch depth variation. In this case a particular tool can be programmed to vary its depth over one or more hits. On the later model machines, a mode that allows for a delay after punching can help with slug pulling or punch sticking concerns.

These options can be programmed easily and are part of your CAM programming system. Example: The NC Express is able to tie particular ram speeds, tool shut heights, form controls, and punch depths to die clearances which relate directly to the material you are punching. View example chart

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Schaumburg, IL 60173 USA
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www.finnpower.com

  Volume 14 Issue 2 - December 2004
Finn-Power reserves the right to change technical specifications without prior notice.
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Copyright © 2005 by Finn-Power International, Inc.