CNC hydraulic press brake machine is a modern machine tool used in the metalworking industry for bending and folding metal plates. The backgauge structure and type are essential components of the press brake. The backgauge helps to hold and position the metal workpiece during the bending process accurately. There are different types of backgauges for CNC hydraulic press brake machines, including 2-axis, 4-axis, 6-axis, and 8-axis backgauges. In this article, we will discuss the operating mode of each of these press brake backgauges, their applications in the metal bending process, and the importance of backgauge positioning accuracy.
The Structure and Types of Metal Sheet Bending Backgauge
The backgauge structure of a press brake machine consists of two parts: the frame and the positioning mechanism. The frame supports the backgauge mechanism and holds it in place. The positioning mechanism is responsible for moving the backgauge to position the metal workpiece during the bending process. The positioning mechanism uses different types of drives, including hydraulic, mechanical, and servo drives.
China AHYW Yawei 2-Axis CNC Press brakes Backgauge
The 2-axis press brake backgauge has two positioning mechanisms that allow movement along the X and Y-axes. The X-axis provides the horizontal positioning, while the Y-axis provides the vertical positioning. The 2-axis backgauge is suitable for simple bending operations and is cost-efficient. It is commonly used for bending short and narrow workpieces and has limited positioning accuracy compared to the multi-axis backgauges.
China Yawei AHYW 4-Axis CNC Press brakes Backgauge
The 4-axis backgauge has an additional rotating positioning mechanism and allows movement along the X, Y,Y2, and R-axes. The R-axis provides the rotation of the backgauge fingers. The 4-axis backgauge is suitable for bending medium-sized workpieces and provides improved positioning accuracy compared to the 2-axis backgauge.
China Yawei AHYW 6-Axis CNC Press brake Backgauge
The 6-axis backgauge provides six-axis movement, including X, Y, R, and Z-axis, along with B and C-axes for sheet rotation. The B-axis provides rotation of the sheet perpendicular to the Y-axis, while the C-axis provides rotation of the sheet parallel to the Y-axis. The 6-axis backgauge can handle more complex bending operations, such as bending of curved and twisted workpieces. It provides improved accuracy and increased productivity, making it a cost-effective solution.
China Yawei AHYW 8-Axis CNC Press brake Backgauge
The 8-axis backgauge is the most advanced backgauge, providing eight-axis movement. It includes X, Y, R, and Z-axes and three additional bending axes (A, B, and C). The A-axis provides depth control bending, the B-axis provides rotation of the sheet perpendicular to the X-axis, and the C-axis provides rotation of the sheet parallel to the X-axis. The 8-axis backgauge is ideal for handling complex bending operations and provides the highest positioning accuracy for metal bending.
Operating Modes of China Yawei AHYW CNC Press brake Backgauge
The backgauge on a CNC hydraulic press brake machine can operate in two modes: manual mode and automatic mode.
Manual Mode
In the manual mode, the operator controls the positioning of the backgauge using a handwheel or joystick. The manual mode is suitable for simple bending operations and provides flexibility in adjusting the position of the backgauge.
Automatic Mode
In the automatic mode, the CNC control system positions the backgauge to the required position automatically. The automatic mode is suitable for complex bending operations and provides high accuracy, repeatability, and productivity. The automatic mode requires input of the required dimensions and bends, and the CNC control system calculates the position of the backgauge based on the input.
Applications of Backgauge
The backgauge plays a crucial role in the bending process, supporting the metalwork in the correct position during the bending operation. The different types of backgauges have various applications based on their specifications.
2-Axis Sheet Metal bending machine Backgauge
The 2-axis backgauge is suitable for simple bending operations, such as bending straight or tapered sheet metal parts. It is commonly used for bending short and narrow workpieces.
4-Axis Sheet Metal bending machine Backgauge
The 4-axis backgauge is ideal for bending medium-sized workpieces with complex shapes, such as folded parts with several bends. It provides improved positioning accuracy compared to the 2-axis backgauge.
6-Axis and 8-Axis Sheet Metal bending machine Backgauge
The 6-axis and 8-axis backgauges are ideal for handling complex bending operations, such as bending curved and twisted workpieces. The 6-axis and 8-axis backgauges provide high accuracy and increased productivity and are suitable for high volume production runs.
Importance of AHYW Yawei CNC Press brake powerful metal bending machine Backgauge Positioning Accuracy
Backgauge positioning accuracy is crucial for producing high-quality metalwork. The positioning accuracy of the backgauge affects the accuracy and repeatability of the bending operation. Even a small deviation in position can significantly affect the accuracy of the bend angle and the dimensional accuracy of the final product.
The accuracy of the pres brake backgauge is impacted by several factors, including the accuracy of the drive system, the positioning resolution, and the calibration of the backgauge. Therefore, it is essential to ensure that the backgauge is regularly calibrated and maintained to ensure accurate positioning.
Metal sheet bending backgauge structure and type are crucial components of a CNC hydraulic press brake machine. The backgauge provides the positioning and support required for accurate metal bending. The different types of backgauges have various applications based on their specifications and can operate in manual or automatic modes. The accuracy of the backgauge positioning affects the accuracy and repeatability of the bending operation and is critical for producing high-quality metalwork.
