The advantages of improving the surface accuracy, shortening the processing time, and reducing the number of fixtures make the 5-axis machining technology the most important part of the current manufacturing industry. Therefore, its development has always affected the eyes of all manufacturers. In Europe, 5-axis machining has become quite popular, but it has developed relatively slowly in China. The reason is that software functions, program security, and user's technical experience are all important factors restricting the development of 5-axis machining technology in China.

Vero Software is a professional company engaged in manufacturing CAD/CAM/CAE software development. The software product range covers the design and manufacture of injection molds, cold punches, progressive dies and shoe molds, multi-axis laser cutting and wire cutting, etc. To provide integrated solutions for manufacturers, the current product is being widely used in more than 20,000 users worldwide, throughout the automotive manufacturing, electronics industry, medical equipment, white goods and aerospace and other major manufacturing areas. As an important part of the Vero Software family of products, Visi-5 Axis Machining provides operators with a productive solution for sophisticated 3D data, using advanced interference control to create efficient toolpaths that will maximize Meets the requirements of modern 5-axis machining technology.

VISI provides the industry with a unique 3D>5-axis conversion function that can directly convert all 3D toolpaths into 5-axis programs, which will greatly increase the number of already extremely rich 5-axis strategies to cover all possible The situation. Using this approach will enable high-speed machining techniques to be applied to 5-axis toolpaths. And this 3D>5 axis conversion function provides intelligent interference checking, automatically tilting the tool to avoid the workpiece when needed. This semi-automatic type tool path will greatly speed up the programming and shorten the learning cycle. With complete functions, rich processing strategies, and easy-to-use product systems, Visi-5 Axis Machining users can easily handle 5-axis machining of molds and products such as deep cavity, turbine blades and thrusters.

For example, in many complex molds, some deep cavity or cliff locations are often encountered. In conventional 3-axis machining, it is necessary to use extended tools and extensions, or even to remove the electrodes for EDM processing, but this not only increases the The cost of processing, prolonged the production cycle, and increased the error of the tool's yaw, multiple clamping, resulting in a very low surface quality. By cutting at different angles, the spindle head can be lowered even further. The Visi-5 Axis Machining can effectively detect interference and automatically tilt the tool and handle to avoid workpieces or fixtures (see Figure 1). The main advantage of this strategy is the ability to use shorter tools to increase tool rigidity, reduce vibration and yawing. A constant cutting load and higher cutting speed can ultimately achieve the effect of longer tool life and higher quality surface quality. When processing a flat area, cutting with a large-diameter bull nose knife with a certain inclination angle can produce a smaller number of tool paths, thereby reducing the processing time and improving the quality of the curved surface.

Figure 1 Visi-5 Axis Machining can effectively detect interference and automatically tilt the tool and handle to avoid workpieces or fixtures

High surface quality, position restrictions, and oblique movement of the rotating shaft make machining of turbine blades and thrusters has always been considered as a standard for measuring 5-axis machining technology, and Visi-5 Axis Machining provides all the necessary for the successful processing of such parts. Tool of. Visi-5 Axis Machining establishes a continuous helical tool path along the product with an evenly distributed coordinate, so that the tool gets the most regular smooth contact during cutting, a stable spindle load, and the most constant movement of all 5 axes. This reduces the impact of unnecessary vibration on the thin ribs.

In 5-axis machining, small movements of the tool may cause very large movements on each axis of the 5-axis machine because each movement is amplified by the tool, handle, and spindle. In the event of interference, Visi-5 Axis Machining provides a variety of smooth axis movements to complete avoidance interference. The avoidance strategies for interference include the tool movement along the tool axis, interfering with the tool to incline the tool, and the strategy of lifting the tool in a given direction to avoid the workpiece. In addition to automatic interference avoidance, the axis of rotation is also limited by the range of movement of the custom axis, preventing the spindle from overtravel.

In addition to traditional cutting simulations, Visi-5 Axis Machining provides machine motion simulation specifically for 5-axis machining. Motion simulation can use the real machine dimensions and the rotation or movement range of each axis to perform a safety check of the entire operation of the tool path. Cutting of cutting tools and handles, blanks, fixtures and any other components on the machine will be graphically highlighted, and the rotation or movement of each axis will be checked for overtravel, allowing the user to obtain the safest NC program ( See Figure 2).

Figure 2 Cutting of cutting tools and tool holders, blanks, fixtures, and any other components on the machine will be graphically highlighted and the rotation or movement of each axis checked for overtravel.

There are various configurations of 5-axis CNC machine tools on the market, such as double swing of the table, double swing of the main spindle, composite rotation of the table rotation and spindle swing, and the like. VISI has a large library of postprocessors that can be adapted to most machine tools on the market. In addition, all postprocessors are completely customizable to suit different needs. For example, a 3+2-axis or 5-axis CNC code is output. By delivering a smooth and efficient CNC code to the machine tool controller, it will reduce unnecessary acceleration and deceleration movements on the machine tool so that the machine tool operation can be as close as possible to the feed rate in the program, which will help the machine tool operation. It's faster and prevents sudden changes in direction, thus eliminating excessive pressure on the tool.

“After the introduction of VISI, we can easily find the changes in the workshop. Everything becomes very smooth and no more interruptions due to the program cause. Machine operators no longer need to stand by the machine. Exclude problems. Continuity and reliability ensure that we can now execute plans more accurately than before.” said Ton Proost, R&D Director, Plastica Thermoforming, Netherlands.

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