Pilz is developing a new PSENvip point guarding safety device for press brakes. The system, which is mounted directly onto the tooling, consists of a sender and receiver and uses an LED light source. According to Pilz, the LED is more tolerant to heat and vibration than lasers and is not considered a dangerous light source. The company says its LEDs feature a lifetime of over six years, which is longer than the average lifetime of lasers.
The PSENvip interfaces to the press brake via two output signal switching devices (OSSD). The sender is 115 x 115 mm and 168 mm long. The receiver is also 115 x 115 mm but is 228 mm long. The PSENvip has an EN 954 rating and suits applications that currently use light curtains. Pilz plans to include with the device a built-in measurement feature, which can determine the angle of a pressed sheet within 1/10 of a degree.
The receiver has a built-in camera and an integrated LCD display for set up and diagnostics. All navigation is on the device so an external keyboard is not required. The receiver has a range of 12m and a viewing window of 40 x 40 mm. Within that viewing window, there are three floating zones around the tip of the press that provide dynamic sensing based on which zones have been violated.
Pilz plans to release the PSENvip device around the end of the year.
The PSENvip not only detects safety breaches but also measures the angle of a bend.
With a better understanding of materials’ response to load and temperature, researchers could potentially use the knowledge to improve design. The research could even help geologists studying plate tectonics.
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