CNC Press Brake Machine Shaft – Ultimate Guide

In the realm of modern metal manufacturing, CNC press brake machines stand out as advanced equipment, offering crucial support and advantages for executing intricate plate bending operations with utmost precision. These bending machines have emerged as indispensable tools, serving as the cornerstone for producing top-tier, high-precision metal parts and components.

This article will delve into a comprehensive examination of each axis’s functionalities within CNC press brake machines, shedding light on their pivotal role in metal manufacturing. By uncovering the significance of CNC press brake machine axes and their impact on enhancing production efficiency and product quality, readers will gain valuable insights into the intricacies of metal fabrication processes.

CNC Press Brake Machine：Revolutionizing Sheet Metal Processing

The CNC press brake machine represents a modern marvel in sheet metal processing. Utilizing computer numerical control (CNC) technology, it offers unparalleled precision, efficiency, and automation in bending operations.

Working Principle:

Driven by hydraulic pressure or motor, the CNC press brake machine clamps the sheet onto the workbench and applies force through upper and lower molds to complete the bending process. Precise control of the backgauge and bending tool position and angle enables the attainment of desired bend shapes and angles.

Numerical Technology:

Employing CNC technology, parameters and bending requirements are input into the numerical control system via preset programs and instructions. The CNC system orchestrates the movement of each axis, ensuring the accuracy and consistency of the bending process.

Axis Control:

Equipped with multiple axes like X, Y, and Z, CNC press brakes facilitate motion control in different directions. The X axis governs table movement, the Y axis controls bending tool movement, and the Z axis manages backgauge positioning. Precise control of these axes enables the realization of complex sheet bending operations.

Automated Functions:

Highly automated, CNC press brake machines offer automated features through NC programming. These include automatic adjustment of backgauge position, selection of suitable bending tools, and worktable switching. This automation enhances productivity, minimizes human error, and accommodates diverse bending requirements.

Application Fields:

CNC press brake machines find wide application in metal processing and manufacturing industries, particularly in the production of sheet metal parts and components. They are utilized in fabricating various shapes and sizes of parts such as enclosures, pipes, and frames.

In summary, the CNC press brake machine stands as a pinnacle of high-precision and high-efficiency plate processing equipment, leveraging CNC technology to realize complex bending operations with automation functions. Its widespread use in metal processing and manufacturing underscores its indispensable role in modern industrial processes.

How To Understand Different Axes On CNC Press Brake

CNC press brakes are usually equipped with multiple axes, including X, Y, Z and optional R and A axes.

These axes are precisely controlled by computer numerical control technology, enabling the press brake to perform complex sheet bending operations. The X-axis is used to control the lateral movement of the table, the Y-axis is used to control the vertical movement of the bending tool, the Z-axis is used to control the position of the backgauge, and the R-axis and A-axis are optional to control the tilt of the bending tool angle and rotation angle of the workpiece.

The synergy of these axes makes the CNC press brake machine characterized by high precision, high efficiency and automation .

The importance of CNC press brake machine shaft

CNC press brake axes are a vital component of the bending process. They precisely control the movement of the worktable, bending tool and backgauge through numerical control technology, which directly affects the accuracy and shape of the bending.

The flexibility of the axis enables the bending machine to handle workpieces of various complex shapes, and realize multi-step bending or special shape requirements through the control of the R axis. In addition, the axis of the CNC press brake machine has a high degree of automation, which can automatically adjust the position of the back gauge and the selection of the bending tool through the preset program to improve production efficiency and consistency.

Therefore, CNC press brake machine shafts play a key role in modern sheet metal processing and are widely used in the field of metal processing and manufacturing, providing an important guarantee for the production of high-precision, high-quality bending parts.

How To Understand Backgauge On The Bender

The backgauge of the bending machine is a device used to position and support the workpiece. During the bending process of the CNC press brake machine, the back gauge is located behind the bending tool to support the workpiece to ensure that the workpiece is correctl positioned and supported during bending.

The backgauge usually consists of a solid metal plate or bracket whose position can be adjusted as needed. Its height and position can be precisely controlled by the CNC system to suit the size and shape of different workpieces.

During the bending process, the workpiece is clamped on the table between the back gauge and the bending tool. The function of the backgauge is to prevent the workpiece from moving or deforming during the bending process, and to ensure that the workpiece maintains a stable position and posture, so as to achieve accurate bending angle and shape.

The backgauge plays a key role in the CNC press brake machine, and its stability and accuracy directly affect the quality and precision of the bending result. By precisely controlling the position and height of the backgauge, operators can ensure that the workpiece is properly supported and positioned during the bending process, resulting in high-quality bent parts.

Backgauge ＆Shaft: What The Relationship?

The backgauge serves as the pivotal device responsible for positioning and supporting the workpiece during bending operations, while the axis controls its movement and positioning.

CNC press brake machines typically feature multiple axes, including the X-axis, Y-axis, Z-axis, and others. Among these, the Z-axis primarily governs the movement of the backgauge. Positioned behind the bending tool, the backgauge assumes a crucial role in the bending process. By precisely controlling the Z-axis position, the backgauge ensures proper support and positioning of the workpiece when clamped on the table.

The numerical control system enables precise adjustment of the backgauge’s height and position. Operators can preset the backgauge position within the CNC system based on the workpiece’s size and shape. During bending, the Z-axis automatically regulates the backgauge’s position according to preset parameters, ensuring the workpiece maintains stability throughout the process, thereby achieving accurate bending angles and shapes.

Hence, the backgauge and axis function in tandem, with axis control facilitating precise movement and positioning adjustments of the backgauge. This collaboration provides stable support for the workpiece, thereby ensuring the accuracy and consistency of the bending process. Such synchronization empowers CNC press brakes to execute high-precision bending operations and produce top-quality bent parts.

Understanding Diffrent Axes: X, Y, Z, R, A

X-axis: The X-axis is usually along the transverse axis of the bending machine and is used to control the movement of the worktable (bed). It controls the horizontal position of the bending tool relative to the workpiece.

Y axis: The Y axis is usually along the longitudinal axis of the bending machine and is used to control the vertical movement of the bending tool. It controls the vertical position of the bending tool relative to the workpiece.

Z axis: The Z axis is usually along the vertical axis of the bending machine and is used to control the movement of the backgauge. The backgauge is a device used to position and support the workpiece and plays a key role in the bending process.

R-axis: R-axis is used to control the inclination angle of the bending tool, usually used to achieve multi-step bending or bending requirements of special shapes. The R axis allows the bending tool to be tilted in one plane.

A-axis (optional): The A-axis is a rotary axis used to control the rotation angle of the workpiece or bending tool. It is often used when bending in different directions is required or to achieve rotationally symmetric shapes.

Shaft on Backgauge

CNC press brake machine back gauges usually have 2 or 3 axes. The function of these axes is to adjust and control the position of the backgauge to suit the bending needs of different workpieces. Among them, 2 axes are used to control the horizontal and vertical movement of the back gauge, and if there is a 3rd axis, it may be used to adjust the lateral movement or angular rotation of the back gauge. Different models of CNC press brake machines may have different configurations, so the specific number of axes may vary.

Other Additional Axes

Beyond the conventional X, Y, Z, R, and A axes, modern press brakes are outfitted with supplementary axes like V, L, and Delta X, enhancing control and flexibility.

The V-axis boasts a convexity compensation function, addressing concerns regarding center bending in lengthy metal parts. By adjusting the bed to compensate for deflection, it ensures precise, straight bends across the entire material length.

Meanwhile, the L-axis governs horizontal movement of the backgauge, augmenting flexibility to handle wider sheet metal or off-center bends. This enhances bending machine operability, particularly beneficial for intricate components and precise bending tasks.

Furthermore, the Delta X-axis enables independent movement control of back gauge fingers. Each finger can move autonomously, offering advantages for complex bending operations or asymmetrical parts. Through independent finger adjustments, the Delta X-axis facilitates high-precision bending for intricate and customized manufacturing requirements.

These additional axes deliver heightened precision and accuracy. Understanding their functionalities and optimizing their utilization can significantly enhance efficiency, accuracy, and overall performance in metal bending and fabrication processes. As technology progresses, the introduction of more advanced axes and features holds promise for further growth in the metal fabrication sector.

How to Select a Multi-axis Bending Machine

Choosing a multi-axis bending machine entails a thorough assessment of various factors including technical requirements, production demands, flexibility, automation capabilities, brand reputation, quality standards, budget considerations, and availability of technical support.

It’s essential to clearly define bending technical specifications, evaluate production scale and output requirements, assess the flexibility and automation features of bending machines, opt for reputable brands offering high-quality equipment, manage budget constraints effectively, and ensure suppliers provide adequate technical support and training.

By integrating these considerations, selecting a suitable multi-axis bending machine can enhance production efficiency, elevate product quality, address complex bending needs, and drive advancements in metal manufacturing.

Conclusion

Understanding CNC press brake shafts is pivotal for success in metal manufacturing. By comprehensively grasping the functions of each axis and effectively applying them, we can refine bending technology, deliver superior metal products to customers, and propel industry advancement. Let’s remain vigilant regarding bending machine technology advancements, continually innovate, and expand application domains. Should you have any inquiries, please don’t hesitate to contact us!