Bending Angle Laser Check Device For AHYW Yawei CNC Press Brakes
CNC Sheet metal bending machines are important equipment machinery used in the metal fabrication of metal components in various industries. CNC sheet metal bending machines are highly reliable and efficient, and they play a significant role in ensuring that the metal components meet the required specifications. One of the critical factors that affect the quality of metal assembled components produced using these machines is the bending precision of the metal sheets.
CNC Sheet metal profile's Bending precision refers to the accuracy of the sheet angles which the metal sheets are bent, shaped or formed. Metal bending precision must be within the allowable tolerance levels to ensure that the final product meets the required specifications. Any deviation from the required pressing precision can result in defects that affect the functionality of the metal components. These defects, no matter how minor, can lead to reduced performance, inefficiency, and increased risk of failure in the finished products.
For the current sheet metal bending industry, there has more demand increasing for metal profiles bending precision that can accurately measure the bending angles of metal sheets during the fabrication process. This demand has led to the development of various types of laser angle measuring devices that are designed to provide high-precision measurements of the bending angles of metal sheets. These devices are used in conjunction with metal sheet bending machines to ensure that the bending precision is within the required tolerances. When you are bending sheet profiles to 90 degree using cnc controller, sometimes it only reach at 92 degree and stop pressing, if Laser check detected this fault, it will be refer to controller adjusting bending depth for bending 90 degree sheet metal profiles.
For the past years, market for laser angle measuring devices has grown significantly globally. This growth can be attributed to the increasing demand for high-quality metal bending sheet components required in various industries, including automotive, aerospace, construction, and manufacturing. The need for precision components has become increasingly important, as manufacturers seek to improve efficiency, reduce costs, and minimize waste.
The methods for measuring the angle of a CNC sheet press brake bending machine mainly include using an angle ruler and a laser sensor.
Measure angles using an angle ruler
Measure angles between 0 ° and 50 °: Install both the angle ruler and the ruler, and place the measured part between the measuring surfaces of the base ruler and the ruler for measurement.
Measure the angle between 50 ° -140 °: Remove the angle ruler, install only the ruler, connect it to the sector plate, and place the measured part between the measuring surface of the base ruler and the ruler for measurement.
Measure the angle between 140 ° -230 °: Remove the ruler and clamp, only install the angle ruler, and place the measured part between the measuring surface of the base ruler and the short side of the angle ruler for measurement.
Measure the angle between 230 ° -320 °: Remove all accessories and leave only the sector plate and main ruler. Place the measured part between the base ruler and the sector plate measurement surface for measurement.
Measuring sheet metal bending profile's angles using laser sensors
Laser sensors such as VCnano3D-Z can provide high-precision angle measurement. Its measurement rate is as high as 400 Hz, with an accuracy of less than ± 0.05 °, and it can be directly connected to the PLC of the equipment to achieve real-time control. The laser sensor has a compact IP67 waterproof housing, wide field of view, easy integration, and is suitable for different metal materials, including bright surfaces. It does not require calibration and can directly output the workpiece angle and compare it with the reference value in real time, suitable for various molds.
Calibration function of CNC sheet metal Press brake bending machine
The calibration function of CNC sheet profile's bending machine includes single part calibration and overall calibration:
Single part correction: It can separately correct the angle error of a certain step. For example, if there is an error when folding the first blade, the first step can be corrected separately to achieve the expected angle.
Overall correction: Enter a correction angle, and all steps will be corrected. For example, if the angles of all steps are too large or too small, 3 can be adjusted through overall body correction.
Through these methods, the angle of sheet metal CNC Press brake can be effectively measured and calibrated to ensure machining accuracy.
The bending angle measurement of a bending machine can be achieved through the following methods and techniques:
Laser angle measurement system: This is an advanced technology that detects the angle of the workpiece in real time through cameras set at the front and rear positions of the workbench, while controlling the depth of the movable beam to obtain stable and high-quality bending angles
For example, the Laser Angle Measurement System (LAMS) 4.0 version of the Bystroniccnc sheet press brake bending machine can be applied to a wider range of lower molds with different openings, reducing the impact of laser angle measurement on press brake bending efficiency and ensuring bending angle accuracy within+/-20 minutes.
Optical online pressing bending angle angle measurement: using triangulation sensors such as MLSL123S50 can accurately measure metal parts, reliably detect angles on different surfaces, and seamlessly integrate into software from common controller manufacturers
This type of sensor has a compact structure, light weight, large measurement range, is not affected by surface characteristics (smooth, brushed, rough, thin film), and can be used for point or continuous measurement
Integration of 3D laser and bending machine control system: VC 3D laser system and systems such as Delem and Speer
The control systems of CNC Press brakes such as Delem, ESA,Cybelec Laser Check, etc. are perfectly integrated, providing C # dynamic libraries and technical support for angle detection integration, as long as the bending machine has a TCP/IP interface
The VCnano3D-Z laser bending angle checking has a measurement rate of up to 400 Hz and an accuracy of<± 0.05. It can be directly connected to the device's PLC to achieve real-time control of metal; bending contact pressure
Automatic optical sheet metal bending angle measurement system: OEM laser profilometer launched by Vision Components, used to detect the angle accuracy of sheet metal bending machines. The VC nano 3D-Z 3D line sensor has a measurement rate of up to 400 Hz and an accuracy of<± 0.1. It can be directly connected to the device's PLC to achieve real-time control of contact pressure
Metal Bending Angle measurement auxiliary tool: The real-time sheet bending angle detection tool launched by Bystronic can be connected to the CNC system of the bending machine through USB technology, and can detect the actual angle value after each bending in real time, thereby informing the operator of the actual size of the angle currently processed
All these tools are easy for using. It is magnetically attached to the front of the upper mold and uses a patented laser detection system. The detection of bending accuracy can reach+/-0.2 degrees, and the repeatability accuracy can reach 0.1
