Six Functions to Improve the Efficiency of Laser Cutting Machine
After years of innovation and development, fiber laser cutting equipment has been widely used in various industries, gradually replacing traditional cutting methods. With the increase of cutting workload, improving the efficiency of laser cutting has become a top priority.
The operation of the early laser cutting machine is mainly divided into three actions: ascending, translational and descending. This process has a long action route and many action nodes, which restricts the cutting efficiency of the laser cutting machine. Now, after continuous testing and research by technicians, the laser cutting machine has changed this operation mode.
After continuous technological innovation, now in the cutting process, there are six practical functions that greatly improve the processing efficiency and cutting performance of laser cutting machines. Next, let’s take a closer look at these six useful functions.
Leapfrog is the operation mode of today’s laser cutting machines, and this technical action is a breakthrough in the development of laser cutting machines. This action omits the time of rising and falling, and the laser cutting head moves faster and more efficiently. This feature has become standard on modern laser cutting machines.
Auto focus function
When cutting different materials, the focus of the laser beam is required to fall on different positions of the workpiece section. Therefore, it is necessary to adjust the position of the focus. Early laser cutting machines generally used manual focus adjustment. Today, most manufacturers provide customers with automatic focusing cutting heads.
The method of automatic focusing is: before the beam enters the focusing mirror, install a variable curvature reflector (or adjustable mirror), by changing the curvature of the reflector, changing the divergence angle of the reflected beam, thereby changing the focus position and realizing automatic adjustment. coke.
Automatic edge finding function
The automatic edge finding function can sense the inclination angle and origin of the sheet, and adjust the cutting process to suit the angle and position of the sheet, thereby avoiding waste. Thanks to the automatic edge-finding function, the time to adjust the workpiece earlier is eliminated – moving workpieces weighing hundreds of kilograms on the cutting table is not an easy task, thus greatly increasing the efficiency of the machine.
Concentrated perforation, also known as pre-piercing, is a processing process, not a function of the machine itself, and its use requires the help of an automatic programming system. When cutting thicker sheets with a laser, the cutting process of each contour goes through two stages: perforation and cutting. The so-called centralized perforation is to perform all the perforation processes on the entire board in a centralized manner in advance, and then go back and perform the cutting process.
Concentrated perforation can improve processing efficiency. By adopting the centralized perforation method, the focus can be adjusted to the position suitable for perforation. After the perforation is completed, the machine is paused, and then the focus position is adjusted to the best position required for cutting; in this way, the perforation time can be shortened by more than half, greatly reducing the Improve efficiency.
Other process parameters can also be adjusted or changed in the middle of concentrated perforation and cutting (for example, air + continuous wave can be used for perforation, and oxygen is used for cutting, and there is enough time to complete the gas switching in the middle).
Bridge position (micro-connection) process
During the laser cutting process, the sheet is supported by serrated support bars. If the cut part is big enough, it cannot fall from the gap of the support bar; if it is too small, it cannot be supported by the support bar, which may lose its balance and cause the part or sheet to lift. However, the high-speed moving cutting head may collide with it, which may result in shutdown or damage to the cutting head.
This phenomenon can be avoided by using the bridge (micro-connection) cutting process. When programming the graphics for laser cutting, the closed contour is intentionally broken in several places, so that the parts and the surrounding materials will stick together after the cutting is completed and will not fall off. Microconnect. The distance of disconnection, about 0.2 to 1 mm, is inversely proportional to the thickness of the sheet. Based on different perspectives, there are these different names. Based on the outline, it is called a breakpoint; based on the part, it is adhered to the base material, so it is called a bridge or micro-connection.
Bridges connect parts with surrounding materials, and mature programming software can automatically add an appropriate number of bridges according to the length of the contour. It can also distinguish the inner and outer contours, and decide whether to add a bridge position, so that the inner contour (waste) without the bridge position will fall off, and the outer contour (parts) of the bridge position will be adhered to the base material, thus eliminating the sorting work. .
Common edge cutting function
If the contours of adjacent parts are straight lines and have the same angle, they can be combined into one straight line and only cut once. This is a common edge cut. Obviously, co-edge cutting reduces the cutting length, and co-edge cutting does not require the shape of the part to be rectangular, so the processing efficiency is significantly improved.
The above 6 major functions and processes have greatly improved the production efficiency of laser cutting machines and have become the standard configuration of mainstream laser cutting machines. This greatly extends the application range of the cutting machine.