CNC control technology of UHP water cutting equipment
The unique feature of the ultra-high pressure water cutting equipment is that the high-energy water flow generated by ordinary water after multi-stage pressurization, and then through a very fine ruby nozzle, jet cutting at a speed of nearly one kilometer per second. In terms of structure, there are many forms, such as gantry structure and cantilever structure with two to three CNC axes, which are mostly used for cutting plates; robot structures with five to six CNC axes, which are used for many purposes. For cutting car interior parts and car linings, etc.
The simple ultra-high pressure water cutting equipment has two CNC axes, which are controlled by CNC for X-Y CNC movement, and can realize direct conversion of CAD/CAM, truly free keyboard input, no drawing processing, as long as any complex curve drawn in CAD , can be directly cut into shape.
Moreover, the cutting accuracy of ultra-high pressure water cutting equipment is between 0.1mm and 0.25mm, and its cutting accuracy depends on the accuracy of the machine, the size range of the workpiece to be cut, and the thickness and material of the workpiece to be cut. Usually, the system positioning accuracy of the machine is 0.01mm. to 0.03mm.
The abrasives used in the cutting process are quartz sand, garnet, river sand, emery, etc. The particle size of the abrasive is generally 60-80 mesh. The higher the hardness of the abrasive, the larger the particle size and the stronger the cutting ability; the CNC numerical control technology Compared with the traditional control technology, the processing efficiency is higher and the quality is better.
When using CNC numerical control technology, it is necessary to use a suitable cutting fluid with the tool. The selected cutting fluid should be a water-based cutting fluid with good cooling performance, which can provide on-machine cooling effect for ultra-high pressure water cutting equipment and improve Cut quality.