In various industrial fields, five-axis linkage Cnc Machining centers are tools that have been widely used in recent years. Especially when researching and developing five-axis machining of products, due to the development of new products, metropolises need special-shaped, new or complex parts, so its utilization rate is even higher. But precisely because of the extremely high complexity of five-axis machining of research and development products, the probability of tool collision is high. How can we avoid knife collision as much as possible?
Adding optional module programming Op to the simulation solution can effectively allow users to improve the NC program according to the motion mode of each machine tool, and use efficient lateral motion to automatically find a better orientation without collision for multi-axis machining.
It allows programmers to avoid errors to a great extent when manually optimizing the axis position. The overall improvement process is complicated, so the following three points should be given priority when implementing.
1. Consider the properties of specific machine tools
When programming for various types of machining centers, a very obvious advantage of Op will appear. Its simulation software can be adjusted according to the operating conditions of the CNC machining machine tool to control and implement comprehensive collision detection, so it can be relatively independent of the machine tool. Attribute creation CAM program, thereby improving the flexibility of process allocation and processing.
2. Op detection limits
Op can also find other problems that may arise. For example, if the machine axis rotation is limited, the software will take this into consideration when selecting tool positions and ensure smooth machining. If there is an axis limit, Op will interrupt the tool path, slowly retract the tool and retract the axis to avoid this limit. Then the tool will slowly feed again and continue machining. This method can be used for spiral machining on restricted machine tools. Angle head machine tools can also be used with Op to achieve dynamic machining.
3. Use as many axes as needed
The software optimizes the feed motion and automatically determines whether positioning with the rotary axis is faster. The rotation axis moves along a short path, and the movement of the linear axis is greatly reduced. In this way, a faster speed can be achieved during exercise. If a 3-axis movement is not possible due to a collision or axis restriction detected, Op will change the movement with the help of four or five axes. For various types of operations, whether it is 2.5-axis, 3-axis or 5-axis, they can be effectively connected, thereby reducing the timeliness of auxiliary processing. When the tool is close to the workpiece, the collision will be checked first to ensure that the tool will not retract to a safe plane during movement, effectively shortening the processing time.
Although five-axis milling is a challenging CNC lathe processing mode in the research and development of five-axis machining, due to programming and improper operation by employees, it is easy to hit the tool and affect the qualified rate of processed products, but the matter is human, through Op programming The improvement can effectively consider the axis limitation and optimization algorithm processing sequence at the same time, thereby reducing repositioning, improving efficiency, and ensuring the safety of processing.
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