What Are The Structure Of The Clamping System Of The Press Brake And The Common Problems Of Bending And Clamping?

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What are the structure of the clamping system of the press brake and the common problems of bending and clamping?

CNC press brakes have revolutionized manufacturing by providing precise and efficient bending capabilities for a wide variety of materials. These machines are essential for producing complex and precise bending in metal sheets, tubes and other materials used in industries such as automotive, aerospace and construction. However, in order to remain competitive in today's rapidly evolving market, it is vital that companies constantly upgrade and improve their CNC press brakes to meet the demands of modern production processes.

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Structure of clamping system of press brake

In the last article, we briefly introduced the clamping system of the press brake, and today we will have a little understanding of its structure.

What is the press brake clamping system?

The final accuracy and bending efficiency of the sheet metal bending product depends on the bending equipment, the die system (including fixtures, dies, and compensation systems), the bending material, and the bending operator. The clamp of the press brake is also called the clamping system of the press brake, and the importance of the bending accuracy and efficiency is beyond doubt.

The clamping system of the press brake can be divided into manual clamping and automatic clamping from the mode of operation, and the automatic clamping can be divided into hydraulic clamping and pneumatic clamping from the drive mode.

What is an automatic clamping system?

The automatic clamping system is suitable for press brakes with frequent and rapid mold changes, especially for small batch and multi-variety sheet metal processing modes. Based on the concept of "single point operation", the automatic clamping system can realize the clamping and loosening process of the mold only by pressing a button, eliminating the cumbersome manual locking method. Different from the segmented independent splint, the automatic clamping system adopts the whole strip processing method, which not only ensures the overall processing accuracy of the fixture, but also improves the efficiency of the mold clamping, that is, the mold of the small segment can be installed vertically or horizontally at any position of the fixture.

1. Hydraulic automatic clamping system

Hydraulic automatic clamping system in a certain pressure of hydraulic oil, through the expansion of hydraulic tubing, push the hardening of the clamping pin out, so as to automatically clamp the mold.

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Hydraulic automatic clamping system has the following characteristics:

(1) Accuracy: The positioning datum of the integral fixture is unified and has ultra-high dimensional accuracy. Fixture parallelism once levelled after long-term use.

(2) Durable: The use of high-quality tool steel/high-strength CrMo alloy steel material, the maximum load can reach 800 tons/meter, after heat treatment hardness can reach 56 ~ 60HRC.

(3) Flexible: The fixture comes with Tx/Ty adjustment function, which can effectively compensate the accumulated processing error of the machine during installation, and there is no need to debug the Angle through the pad paper and the clamp block in the later stage.

(4) Fast: The mold is automatically set, the bending line is automatically aligned, and the tool setting process is permanently eliminated. The clamping of the mold with a total length of 6 meters takes only 5 seconds, and the comprehensive use efficiency is 3 to 6 times higher than that of the ordinary clamping system.

(5) Safety: With the use of a mold with a safety button mechanism, the installation and disassembly are safer.

2. Pneumatic automatic clamping system

Pneumatic automatic clamping system After passing a certain pressure of gas, the pressure of the cylinder promotes the movement of the piston rod, prompting the clamping pin to extend, so as to automatically clamp the die. In addition to the characteristics of the above hydraulic clamping system, the pneumatic automatic clamping system has its own unique characteristics.

⑴ Cleaning: no hydraulic oil and hydraulic drive unit.

(2) Simple: pneumatic clamping has a self-locking mechanism (high configuration series).

(3) Convenient: the conventional compressed air power of the workshop can be 6 ~ 8 bar.

(4) Fast: ultra-fast clamping speed, higher efficiency.

⑸ Economy: Lower operating costs.

3. Intelligent matching function

The automatic clamping system can also be equipped with more intelligent modules - intelligent mold positioning system and mold identification and positioning system, to further improve the bending efficiency and intelligence level.

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4. Intelligent mold positioning system

The core of the intelligent mold positioning system STL is the intelligent ruler with programmable LED lights. This scale can be bottom-linked with the controller of the press brake to guide the operator: place the mold in the correct position; The bending workpiece is placed in the correct position, thereby reducing the intensity of the worker's memory and reducing the probability of error.

5. Mold identification and positioning system

The core of the mold identification and positioning system is the chip in the fixture. When the system's fixture clamping mold is configured, the fixture can identify all the mold information, including model, length, height and mold position, etc., and pass the mold information back to the main controller of the system through Ethernet communication, which can realize fully automatic bending operation, greatly improve the yield and bending efficiency, so as to achieve a higher return on investment.

With the continuous development of the intelligent era of "Industry 4.0", the intelligence of the sheet metal industry has made great progress. From the key processes of sheet metal processing: blanking, such as punching/laser, bending, such as bending/folding machine, welding, such as manual/automatic, etc., the bending process, especially the press brake, still has a certain bottleneck in the sheet metal intelligent industry chain, which means that the sheet metal industry and other industries still have great room for progress in the demand for efficient and intelligent bending.

CNC press brakes are a vital tool in manufacturing because they can bend sheet metal precisely according to specific designs and requirements. However, there are still many problems in the development of CNC press brake, especially when it involves the bending clamping process.

Today we will discuss, what are the common problems about the press brake?

The most common problem is a malfunction in the bending clamping system, which can cause inaccurate bending to occur, and most of these problems occur because of wear on the clamping parts or improper machine maintenance.

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Another frequent problem is whether burrs or debris are present on the curved clamping surface. Burrs can cause uneven clamping pressure, resulting in inconsistent bending and poor finished product quality. Debris, on the other hand, can cause the clamping system to hold the sheet metal in an inappropriate position, causing slippage during bending and causing damage to the material or machine.

Therefore, regular cleaning and maintenance of clamping surfaces is an effective means to prevent the occurrence of these problems.

In addition, the problem of the hydraulic system will also affect the clamping mechanism of the CNC brake machine. Hydraulic leakage, pressure fluctuations, or valve failure can lead to inappropriate clamping forces, which can affect the accuracy and quality of the elbow, and operators must regularly check and maintain the hydraulic system to ensure that the clamping mechanism works smoothly and efficiently. By addressing these common issues and taking proactive steps to prevent them, manufacturers can ensure the best performance and longevity of their CNC presses.

How to improve the performance of CNC press brake clamping system?

In recent years, in the context of economic globalization, enterprises have increasingly high requirements for lean production, efficiency improvement and cost control. Genuo has been adhering to the concept of developing more efficient bending, and has launched a more accurate automatic clamping system for press brakes in recent years, which can not only meet the needs of customers for efficient bending and high-precision bending, but also improve the cost performance and reduce price competition. Efficient solutions for clamping system upgrades meet customer requirements for precision sheet metal quality, while greatly improving bending productivity and providing a high return on investment.

One way to upgrade and improve CNC press brakes is to improve their automation and programming capabilities. By integrating advanced software and controls, simplify the programming process, reduce setup time, and increase overall productivity. In addition, the implementation of automatic tool change, robotic loading and unloading systems and real-time monitoring systems can further improve the efficiency and accuracy of the bending process. These upgrades not only save time and reduce errors, but also enable merchants to produce higher quality products at a faster rate.

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In addition, upgrading the hardware components of the CNC press brake can also significantly improve its performance and reliability. Upgrading to more durable and efficient hydraulic systems, high-precision linear guides and state-of-the-art servo motors can improve the accuracy, speed and repeatability of bending, ultimately leading to higher quality finished products. In addition, combined with innovative technologies such as laser scanning and adaptive bending systems, the flexibility and versatility of CNC press brakes can be further improved, enabling merchants to produce a wider range of complex parts with precision and speed. By constantly upgrading and improving CNC press brakes, companies can stay ahead of the competition and meet the growing needs of the industry.

After knowing this, you can visit our website, if you need to learn more about laser cutting machines or buy machines, you can also consult our sales staff, they can recommend the most suitable industrial cutting machine for you.

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