The electro-hydraulic servo CNC sheet metal box and pan bending machine mainly adopts the sheet metal bending machine structure; it is composed of a fully closed loop CNC system of the bending machine, two grating scales, a photoelectric encoder for real-time detection feedback, and a stepper motor driving screw to form a fully closed loop control. Two grating scales; one for the back gauge and one for the position of the slider for real-time detection and feedback correction; the photoelectric encoder detects the position of the dead block of the cylinder and feeds it back to the CNC system.
1. Direct angle programming, with angle compensation function.
2. Grating ruler real-time detection feedback correction, full closed-loop control, positioning accuracy of back gauge and slider dead gauge is ±0.02mm.
3. The upper die adopts quick clamping device, and the lower die adopts oblique wedge deformation compensation mechanism.
4. With multi-step programming function, it can realize multi-automatic operation, complete one-step processing of multi-step parts, and improve production efficiency.
5. According to the user’s needs, the imported hydraulic system with stable performance, compact structure, ball screw and synchronous belt drive can be selected for the back gauge.
Among it, the DA66T controller is popular among the customer. Its advantage as below:
1 The electro-hydraulic servo system control the double-cylinder synchronization, and cooperate with the international standard grating ruler to form a fully closed-loop control. The synchronization control has high precision, and the bending accuracy and repeated bending accuracy also reach a high level.
2 According to user needs, it can have a hydraulic upper mold automatic clamp or a quick clamp, a slot type lower mold, which can reduce the labor intensity of workers and improve production efficiency.
3 The fully functional back gauge mechanism can have six axes. The compensation automatically adjust by the CNC system, which is convenient for compensation
4 There are segmented upper dies of different lengths, which can assemble into a certain width according to the requirements of the workpiece to meet the processing needs of special workpieces.
5 The CNC oil cylinder deflection automatic compensation system overcomes the influence of the deformation of the slider on the quality of the workpiece during the work process, and ensures good straightness and bending angle of the processed workpiece.
6 The flexible operation mode can be used, which can not only link the two machines to solve the processing of ultra-long plates, but also process the short pieces in a single machine, improve the utilization rate of the machine tool and reduce energy consumption.
7 Intelligent module structure, built-in PLC function, automatic programming and bending simulation, collision detection function, can realize remote diagnosis, high-resolution true color TFT display.
Machine main feature
1 The whole welded machine structure achieves high rigidity; the machine is designed by ANSYS software which can ensure the reliability and precision of the CNC press brake.
2 WE67K Series CNC press brake is redesigned based on users’ preference to increase productivity and keep the costs at minimum level with high bending accuracy and low-cost maintenance.
3 Bending angle calculation and back gauge position calculation can be achieve by inputting metal sheet material information, sheet size and punch and die size.
4 Crowning system can work with CNC controller automatically to achieve higher bending accuracy and linearity. Hydraulic crowning and motorized crowing system are optional.
5 CNC back gauge with several axes can work with different shape work-pieces well.
Sheet metal box and pan bending machine safety standard
1. EN 12622: 2009 + A1: 2013
2. EN, ISO 12100: 2010
3.EN , 60204-1: 2006 + A1: 2009
Front protection device to protect fingers (safety light curtain)
South Korea KACON foot switch (level 4 safety level)
Rear metal protection and CE standards
Safety relay monitor completes pedal switch, safety protection
Safety standard (2006/42/EC)
Machine controller DA66T
2D graphical touch screen programming mode
3D visualization in simulation and production
Crowning system control
17″ high resolution color TFT
Date backup/ restore via USB
Bending tool/material/product library
Full Windows application suite
Open system architecture
Machine CNC Axis Explanation
Y1 Left cylinder electro-hydraulic synchronous closed loop control axis
Y2 Right cylinder electro-hydraulic synchronous closed loop control axis
X (X1 , X2) Back gauge moving axis (back and front)
R(R1, R2) Back gauge moving axis (up and down)
Z1,Z2 Two stop fingers moving axis (left and right)
V CNC crowning axis