How To Choose Clamping of CNC Bending Machine

CNC bending machine processing final accuracy depends on whether there is the best:

1, bending machine equipment,

2, bending machine mold system (including mold, die clamp and compensation),

3, bending materials and bending operators.

the bending machine mold system includes:

1,bending mold

2,Mold clamping system

3,CNC bending machine compensation system.

Importance of bending machine die and compensation system to bending accuracy.  

However, many people in the industry are less aware of the clamping system of the bending mould. 

In this article, let's talk about the clamping system of the bending mould first, to see how it liberates manual labor and makes bending more accurate and efficient.

Before CNC bending machine bending, sheet metal parts may have gone through a number of production processes, 

such as stamping, cutting and deburring, which requires CNC bending machine to ensure strict accuracy and accuracy consistency to reduce the generation of expensive waste to reduce costs.  

A good CNC bending machine must meet these requirements, but the importance of a good clamping system is often overlooked!  

A good clamping system not only saves time, but also ensures accuracy and reduces the number of test bends.  

But what are the clamping systems?  We will share an overview of the pros and cons of different clamping systems.

Two kinds clamping systems

CNC bending machine die clamping system has two kinds: manual clamping and automatic clamping.  

There are different versions of each clamping system on the market.

Manual clamping system of CNC bending machine

Manual clamping system is an effective and economical clamping device for bending machines that do not change molds frequently.  

CNC bending machine manual clamping die is the most basic and time-consuming clamping method, requires CNC bending machine operator to manually lock each splint. 

Independent splints can not automatically form a complete clamping line when locked one by one, 

the clamping force of each section of the mold is not uniform, and the CNC bending machine mold can not be immediately aligned, 

requiring time-consuming debugging and relying on experienced operators. To overcome manual dependence, avoid debugging, 

and improve accuracy, MesserPress's manual clamping system of clamping pins provides consistent clamping force throughout the working length, 

eliminating the need for debugging after each section of the CNC bending machine is clamped.  

CNC bending machine clamping pin structure of the manual clamping belt automatic seat and automatic calibration mechanism (Figure 1), so that the mold accurately neutralization seat.

CNC bending machine automatic clamping system

Automatic clamping system is suitable for bending machine fixture with frequent and rapid change of die. Based on the concept of "single point operation", 

the automatic clamping system of CNC bending machine can achieve the process of clamping and releasing the mold only through a button, 

eliminating the tedious manual locking experience.  

CNC bending machine automatic clamping system power sources are electric, hydraulic and pneumatic.  

The most basic automatic clamping system is composed of many segmented independent splints and power cylinders, 

which are driven by the power source mentioned above. 

Although this clamping system avoids time-consuming manual locking mode, 

the positioning accuracy of the mold still exists because the splints are segmented independent.  

How to avoid activating only a single splint to clamp the mold separately?  

Defects with poor accuracy in this way can be clamped as a whole by using a medium to drive a mechanism over the full length of the bending machine.  

The automatic clamping system of the MESserPress CNC bending machine is a full-length clamping system powered by either hydraulic or pneumatic forces.

MesserPress's automatic clamping system is divided into hydraulic and pneumatic clamps.  

For hydraulic fixtures, CNC bending machine fixture is equipped with hydraulic tubing of the same length as CNC bending machine, 

through a certain pressure of hydraulic oil, hydraulic tubing expansion, promote the hardening of the clamping pin, so as to clamp the mold.  

The hydraulic power of the hydraulic system of CNC bending machine must always be in the open state to ensure the clamping function (power locking fixture).  

For CNC bending machine pneumatic fixture, CNC bending machine oil pressure is replaced by air pressure, 

air pressure can make the mold more quickly clamping and loosening.  

The pneumatic fixture system of Messer Press uses compressed air to realize the clamping function, 

and the pneumatic force is used for the wedge mechanism with self-locking function to realize the closed clamping function, 

so the locking is fast and durable (closed locking fixture).

Messerpress suggestion

The manual clamping system of the CNC bending machine is suitable for applications where die changes are rare, 

for which we recommend WILA's manual clamping system.  

The clamping mechanism of CNC bending machine can make the mold of each section correctly positioned, neutralized clamping, 

so as to ensure the accuracy of CNC bending machine.

CNC bending machine if you need to change the mold often, we recommend automatic clamping system, has the following characteristics:

1.High efficiency.  If there is more than one die change per shift, automatic die change can improve bending efficiency

2.The article is ergonomic.  Operation safety is guaranteed to avoid work-related injury.

3.Liberate labor.  The use of simple and easy to operate, reduce the skill requirements of CNC bending machine workers, 

but also reduce the dependence of enterprises on skilled workers.

If more attention is paid to sustainable development, we recommend the use of pneumatic automatic clamping system, 

with self-locking pneumatic clamping function can be clamped without always maintaining the running state, 

to help reduce the use of hydraulic oil, reduce the energy consumption of CNC bending machine.