What are the technical difficulties in processing CNC hydraulic presses?
The problem of machining accuracy The machining accuracy of CNC hydraulic machines is particularly important for some high-precision machining tasks. Common processing accuracy problems include processing dimensional errors, parallelism errors, etc. The key to solving these problems is to improve the accuracy of the CNC hydraulic press itself, including improving the rigidity of the machine tool, reducing thermal deformation of the machine tool, optimizing the cooperation between the machine tool parts and the system, etc.
Processing stiffness problem During high-speed machining and high-power cutting processes, CNC hydraulic machines often suffer from insufficient stiffness, resulting in a decline in processing quality. The way to solve this problem is to increase the stiffness between the workpiece and the tool. Cutting stiffness can be increased by increasing the feed force, improving the cooling performance of the cutting fluid, rationally selecting the tool, and optimizing the cutting parameters.
Processing speed problem The processing speed of CNC hydraulic press directly affects production efficiency. Problems in increasing processing speed mainly include excessive cutting force, vibration and other issues. The way to solve these problems is to improve the hydraulic system and increase the flow and pressure of hydraulic oil. On the other hand, to use rigid tools and improve the geometry of the tools to reduce cutting forces.
Difficulties in processing surface quality During the processing of CNC hydraulic machines, problems such as unqualified surface roughness and poor surface finish often occur. Methods to solve this problem include optimizing cutting parameters, selecting appropriate cutting methods and tools, timely replacement of worn tools, and reasonable workpiece handling before and after processing.
Difficulties in processing complex-shaped workpieces. For some complex-shaped workpieces, CNC hydraulic presses often encounter problems such as difficulty in processing path planning, difficulty in human-machine collaboration, and easy collision of tools during processing. Methods to solve this problem include reasonable tool selection, path optimization, friendly design of human-computer interaction interface, and adding the assistance of automated equipment such as robots.
Difficulties in processing multiple materials In actual production, CNC hydraulic presses often need to process multiple materials, such as metals, plastics, composite materials, etc. Different materials have different cutting characteristics, making it difficult to select processing parameters and monitor conditions during processing. The way to solve this problem is to establish a cutting parameter database of different materials through experiments and data analysis to provide guidance for the processing process.