With the development of the wood industry, high-power high-speed electric spindles have put forward higher requirements for machine tool production efficiency. The high-speed electric spindles used in CNC machining centers are developing with high power and high speed. Power 7 ~ 10KW, speed 18000 ~ 24000rpm, and some even higher, effectively shorten the processing cycle of the workpiece. The machining of the complex shape of the workpiece with five-coordinate linkage facilitates the development of the five-axis CNC machining center. When the machine tool is machined with five-axis linkage, the position angle of the tool and the workpiece can be adjusted at any time during the machining process to avoid the tool and the workpiece. Interference and complete machining in one setup, especially for the processing of curved parts such as stairs, seats and wooden molds.
Multi-function machining units are increasingly applied to wood CNC machining centers to achieve a variety of process requirements for coordinate axis conversion and machining. It is possible to perform bevel drilling and multi-row drilling on one machine. , sawing, milling, slotting, milling, trimming, sanding, edge sealing, rounding and other processing procedures, effectively reducing the auxiliary time of workpiece handling and installation adjustment. Open CNC system The computer-based open CNC system utilizes the computer's system resources, and its comprehensive performance can be improved with the development of computer technology to meet the multi-coordinate and high-speed wood processing requirements. With open functional interface and Windows platform operating system, friendly man-machine interface, user-friendly secondary development.
Automated handling systems and robots are more involved in wood CNC machining as the range of machinable lengths increases and throughput increases. Through the computer-aided design and simulation system, the handling process is simplified, the material handling and loading and unloading distance is shortened, and the processing automation of the workpiece supply, replacement and loading and unloading processes is realized. Safety protection The speed of operation of the machine tool and the emission of dust make the safety and health of the operator a priority. The machine tool generally adopts work area safety protection, and is equipped with safety door monitoring, photoelectric safety protection, alarm and other devices, providing protection for temperature detection, vibration monitoring, tool loosening and broach detection of the electric spindle, and sound insulation and noise reduction of the fully enclosed protective cover. Reduce dust and ensure personal safety.
Emphasis on design With the emergence of new materials, new structures, and new processes, wood CNC machining centers pay more attention to machine appearance and tone coordination to create a good production environment. In addition, consider the functions of comfort, safety, labor saving and high efficiency, aiming at improving the market competitiveness and added value of the products.
Existing problems and development trends At present, most of the wood CNC machining centers developed in mainland China only have three-dimensional space linkage processing functions, and there are certain aspects in terms of quantity, dynamic and static performance, processing accuracy, automation, safety and high-tech applications. gap. The equipment innovation design and process research and development capabilities are not strong, especially the host equipment and key infrastructure parts technology innovation ability is not enough, long-term tracking and imitation level.
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