Angle Measurement System IRIS PLUS
BENDVISION
BendVision is an extension of our image processing technology that provides real-time analysis of the bending process. The technology is incorporated into the existing hardware of the IRIS Plus optical guarding system so that no extra components are required, resulting in an efficient and cost-effective solution for press brake manufacturers.
BendVision processes images of the press brake tools and material during the bending process and transfers a range of information to the CNC via SmartLink including raw and processed images as well as live angle data during bending. The press brake manufacturer can use real-time BendVision data to enable a wide range of customised functions and processes. These functions and processes are co-developed with Lazer Safe and the press brake manufacturer.
BendVision for angle measurement
BendVision technology provides a range of real-time angle measurement data that includes the inside and outside angles of the material, average angle, material warp angle, material spring back angle for various material types, thickness and grain direction, plus end of relaxation angle once the bend has been completed.

BendVision for angle control
The ability for the CNC to receive BendVision angle data opens up a wide range of possibilities for real-time angle control. Instead of just confirming angles are within tolerance, the CNC can use the live angle plus a measured spring back angle to control the bending depth for flexible active and dynamic angle control solutions.

BendVision for tool recognition and confirmation
Raw and processed BendVision image data can be utilised in advanced tool recognition and confirmation processes. Live images of the punch and die can be compared with reference images that are stored in the CNC. Tool recognition and confirmation can be use for an array of functions including tool damage prevention if the programmed tools do not match the tools that are physically installed on the machine.

Active Angle Control (AAC)

Active Angle Control is designed for single parts or small batch production. During operation the bend is briefly paused prior to reaching the programmed angle while real time images are processed to calculate the material spring back. The bend is resumed and the spring back calculation is then used to automatically control the bending depth. After decompression, the final angle is automatically confirmed before proceeding to the next bend. Active Angle Control is a highly accurate angle control process that ensures spring back is calculated for each individual bend to achieve the correct angle.

Dynamic Angle Control (DAC)
Dynamic Angle Control is ideal for high speed processing of volume production parts. When the first part is formed, Active Angle Control is first initiated to automatically calculate the spring back of each individual bend in the part. After spring back is calculated and recorded for the first part, then Dynamic Angle Control is activated. Dynamic Angle Control uses real time angle data plus the recorded spring back value to automatically and accurately control the bending depth, with the final angle automatically confirmed after decompression before proceeding to the next bend. Dynamic Angle Control is a high speed process that ensures accuracy and consistency between parts with no delay to the bending operation.
Angle control processes
These are two examples of angle control processes that can be implemented in the CNC system through the development of supporting software.
Specifications
IRIS | IRIS PLUS | |
|---|---|---|
Optical protection functions | ||
Optical imaging functions | ||
Maximum recommended optical range | 8 metres | 4.5 metres |
Optical sensor | ||
Camera | Digital Image Sensor | Digital Image Sensor |
Frame rate / frequency | 17ms / 59Hz | Selectable 5ms / 200Hz or 10ms / 100Hz |
Data resolution (sensor) | 0.01 degrees | |
Measurement technology | ||
Type | Integrated Intel® image processor | Integrated high-speed Intel® image processor |
Memory depth | Records up to 10 seconds (2000 images) of bend data per cycle | |
Measurement accuracy | Up to +/- 0.25 degrees | |
Measurement rate synchronised with frame rate | Selectable 5ms / 200Hz or 10ms / 100Hz | |
Imaging technology | ||
Bend Speed Management | ||
BendVision |
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