Views: 2549 Author: Site Editor Publish Time: 2022-10-21 Origin: Site
For press brake supply tailored hardware and software solutions that provide safety control and monitoring, optical laser protection, CNC communications interface, machine diagnostics, and image processing technology. Our systems comprise three essential elements; safety controllers, optical systems, and mounting brackets. These elements are matched and configured to suit the customer's requirements for each machine.
This provides an efficient and cost-effective platform with fewer components, reduced wiring, a simplified interface, and CE Certified hardware and software to minimize engineering and build time.
Traditional press brake design increases the level of complexity and requires many third-party components to be made to work together leading to hardware and software compatibility issues, adding extra wiring, and increased cabinet size. The manufacturer must consider CE Certification in design and integration when using third-party hardware components plus develop and certify the control software. This inefficient design led to longer manufacturing time and increased build cost.
The PCSS-A embedded safety controller range expands the possibilities for machine control with the next generation solution for tandem press brakes. The latest tandem solution comprises a Tandem Adaptor that synchronises safety functions and control across both machines and a dedicated optical system for flexible guarding in both single and tandem configurations.
The PCSS-A Tandem Adaptor is a compact module that interfaces the PCSS-A controllers in the master and slave machines via a safety communications protocol that simplifies installation and eliminates complex wiring. Management and switching of foot pedals, emergency stop buttons as well as side and rear gate interlock switches is handled automatically when the machines are operating in single or tandem configuration. For optical protection, the tandem solution incorporates the LZS-XL optical system that is also managed via the Tandem Adaptor. When in single configuration, both machines can operate independently at high-speed with separate sets of the LZS-XL providing optical protection on each machine and with the added benefit of enhanced performance by enabling a minimum speed change point of just 3mm for both flat sheet and box bending.
When operating in a tandem configuration, the middle transmitter and receiver pair are removed* and the Tandem Adaptor manages switching and control of the LZS-XL system with optical protection spanning both machines. High-speed closing movement is protected through the system’s advanced camera technology while safety is maintained without unnecessary interruptions, even if the machines are out of synchronisation prior to reaching the pinch point**. *A custom mounting solution is required to suit the mechanical design of the tandem machine. **For optimal performance, we recommend that tandem synchronisation does not exceed +/- 5mm.
Optical protection systems comprise a laser transmitter and receiver that are mounted to the upper beam of the press brake. A continuous laser field protects the zone directly below and around the punch tip allowing the operator to hold the work piece as the tools close at high speed. If an obstruction is detected the machine is automatically stopped.
This close proximity protection allows the operator unrestricted access to the point of operation for increased productivity and unlike traditional light curtains, reduces fatigue by enabling the operator to remain standing in the same position. The laser field is processed by the receiver and divided into three continuous zones to detect obstructions entering from the front, sides and rear of the tool area.
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.v
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.
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.
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.