SafanDarley E-Brake
Introduction
Instruction manual SafanDarley E-Brake Premium 100-3100 100Pr 2019
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1.6.
DESCRIPTION OF THE BENDING PROCESS
The bending process consists of various steps explained below
Preparation
The following figure shows a side view of a press brake with the sheet to
be bent between lower tool and upper tool. The upper tool is mounted to
the top beam and can be moved up and down (the Y-direction). The
maximum upper tool position is called maximum top dead point (TDP). At
the start of the bending process the upper tool is in the point of
departure, which becomes the programmed top dead point. The top of
the sheet (this is the so-called material clamping point: MCP) is the zero-
point of the Y-axis.
Figure
1-4 Preparation of a bending
The back gauge holds the sheet into position so that it is ready for the
bending process. The back gauge can be moved backwards and forward
horizontally (the X-direction). Before loading the sheet the back gauge has
to be positioned in the correct X-direction. Then the sheet to be bent is put
on the die and pushed against the back gauge.
(X-POS. + RET.X)
Sheet clamping
Once the sheet has been positioned between the tools, the upper tool will
- activated by the foot pedal - move down at fall speed (or approach
speed) up to the speed change-over point. From this point the upper tool
goes down at maximum bending speed to the material clamping point.
Here the sheet is clamped between upper tool and die.