Japan OKUMA successfully developed a new type of high-precision machining centers

Japan OKUMA company recently developed a novice can rest assured that high value-added processing machine tool MULTUS B300. Features include: Precise, high-precision machining even with temperature changes. Prevents collision with workpieces even with manual operations. Significant reductions in button input times for NC (NC) operation with the newly developed GUI (Graphical User Interface). The maximum speed of spindle and countershaft are 5000rpm. Rapid Traverse Speed ​​is X40 × Y26 × Z40m / min. The maximum spindle speed of the turret is 6,000 rpm and is equipped with an ATC capable of standard mounting of 20 tools. At the same time that the "JIMTOF2004" (Tokyo BigSight International Convention and Exhibition Center) opened on November 1, it started to accept orders. Although there is a wide range of demand for complex machine tools, the work and the structure are complex. Therefore, there are (1) processing preparations and first processing which take a great deal of time and are harder to use than general NC machines, (2) it is difficult to ensure the accuracy according to the change of the ambient temperature problem. These problems have become a huge obstacle to work efficiency. MULTUS B300 has taken many measures to solve the above problems. A thermal control technology called "Thermo Friendly Concept" is used, which consists of (1) techniques to simplify thermal deformation, (2) techniques that allow uniform temperature distribution, and (3) minimum thermal distortion Heat Displacement) for high precision compensation. Even in the non-constant temperature chamber of the general processing environment, but also to achieve the duration of processing changes in size within 10μm. Therefore, a machine tool can be used to finish machining with high precision without changing. Equipped with the new digital controller, the "Anti-Crash System" function enables the collision of workpieces under manual operation. As a result, the time required for machining preparation and trial machining can be drastically reduced. As a new GUI, we fully developed the operations and ideas necessary for operators to process their jobs from the time they were created to the first-time jobs, and developed the process preparation and dialogue input functions that match their actions and ideas. Even if you do not learn NC program (G / M code), you can get processing instructions. The number of keystrokes for NC operations during screen operations can be reduced by about 70% (compared with the company's old product). In particular, can play a huge role in a variety of small amount of processing, shorten the processing time. For example, in the company's processing example, the mold and fixture which used to take 3 hours and 34 minutes was shortened to 2 hours and 12 minutes, and the shaft process which used to take 6 hours and 55 minutes was shortened to 4 hours and 5 minutes.

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