DEVELOPMENT OF THE CONCEPT OF TECHNOLOGICAL LINE SHEET METAL USING A SENSOR ADAPTIVE MANAGEMENT TO IMPROVE QUALITY
Keywords:
sheet metal cutting, guillotine shears, accurate cutting, adaptive sensors, CNC machinesAbstract
Object of study – cutting machines, CNC automatic guillotine shears.
Purpose – improving the quality of metal cutting using sensors and adaptive control of the development of the concept of management of technological line processing of sheet metal using adaptive control sensors.
Metal cutting guillotine is on a "scissors" when the material is processed with roller table in the work area, the pre-designated distance falls massive than guillotine Common to most of the existing systems of adaptive management in the processing of metal products for CNC machine is used as a channel regulation only subject innings.
The specificity of the processes of cutting and contour machining of parts on CNC machines specifies requirements for adaptive system: a combination of roughing and finishing in one program; performance roughing at maximum load on the tool by the criterion of its strength; performance finishing at maximum speed with providing precision molded surfaces of size. Considering the developed adaptive system numerical control contouring machines such Haas SF, Haas VL can see the system through the main movement and feed contouring provides simultaneous limiting speed control over the main movement within the limited regulatory resistance, and feeds the criterion of accuracy size details at maximum power use over-revolving lathe CNC with stepper drive.
When contour turning cutters cutting specific is also the fact that the often rough sample mass of metal finishing is accompanied by the formation surface of the treated end face of the instrument. Given the fact that the specific deformation tool entails turning the plane of its end on the treated surface, it is necessary in this case, a criterion not accept treatment tool strength and quality of the formed surface finishing.
Thus, adaptive CNC system must be maintained at a given level of load on the tool by the criterion of strength for roughing and the criterion of accuracy when finishing with the maximum use of capacity controlled drive head movement within the limits of sustainability and feed within the specified limits.
These requirements dictate the need for ongoing monitoring parameters associated with the process of power control, the value of applying for a tooth, speed and load on the tool in draft mode and finish the task the relevant restrictions.
In adaptive systems CNC machines use current sensor data values selected processing parameters. In managing roughing used force sensors, torque, cutting force and its components, amplitude, elastic deformation tool and executive bodies, such as the spindle of the machine. Adaptive management is an effective method of improving the efficiency of processing on CNC machines. The use of adaptive systems code editing in software can significantly extend and complicate algorithms are optimal and marginal adjustment without significantly increasing costs and reducing the need for special equipment.
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