I OKU MA TURN-CUT ENABLES TURNING ON * HORIZONTAL MACHINING CENTERS — SECONDARY MACHINERY

Turn-Cut is a programming option available on Okuma horizontal machining centers, that allows the machine to create bores and diameters that include circular and/or angular features. It allows users to turn features on large, unbalanced parts on the same platform where standard CNC machining functions can also be performed. This eliminates the need to purchase special-purpose machines, tooling, fixtures or add-on components. Turn-Cut operates by leveraging Okuma's philosophy of manufacturing both control and machine, which allows for the perfect blend of mechatronics. It operates using standard...

EXAMPLES OF TURN-CUT APPLICATION Machining Direction TURNING VALVE SEATS FITTING DIAMETER WITH ENTRY RADIUS DIES BEARING SEAT BORE WITH COOLANT PASSAGES TURN-CUT FUNCTION ENABLES LATHE MACHINING CENTER Lathe Operation 1. Turn-Cut provides process optimization capabilities without a large investment in specialized tooling, attachments, fixturing or even a specialized machine tool. Turn-Cut can be installed on Okuma horizontal machining centers while maintaining the original performance of the machine. In nearly all cases, the additional options of the Turn-Cut package will make the machine perform...

The Turn-Cut function performs cutting on a horizontal machining center by synchronizing the circular motion of the feed axis with the spindle's turning angle (tool tip position control). I.The tool turns by synchronizing high-speed circular motion on the feed axes X and Y with the turning angle of the spindle. The position of the turning tool tip is synchronously controlled so it is kept perpendicular to the workpiece face. 2. The cross section configuration is commanded with Z-X, as in a turning program. The X-axis is commanded with the radius of X-Y in a continuous circular motion. The above...

TURNING ON A HORIZONTAL MACHINING CENTER center path A Motion-Control System from a Single-Source Provider Okuma is uniquely capable of offering Turn-Cut because of the solid build quality of the machine, coupled with use of its own CNC and motion control system. Okuma utilizes their own motion control system to drive their machines. This sets Okuma apart from other CNC machine manufacturers who need to purchase motion control systems from other manufacturers. Each Okuma CNC machine utilizes drives and parameters designed specifically for each model, which are tuned specifically for optimum results....

TAS: Thermal Active Stability Okuma utilizes a concept called Thermal Active Stability (TAS). Okuma builds machines to the highest standards to provide a rugged yet highly accurate CNC machine tool. However, all machines are subject to thermal growth as a result of the CNC machining process or ambient temperature variations. TAS has been engineered to monitor temperature fluctuations at key areas of the machine and make minute adjustments to maintain accuracy. COMBINING MACHINE TECHNOLOGY AND CONTROL TECHNOLOGY •Thermo Active Stabilizer —Construction fTAS-C) •Thermo Active Stabilizer —Spindle...

OKUMA TURN-CUT Build Quality Okuma uses advanced electronic control to supplement build quality, • Ribbed castings for strength • Large base casting with three-point leveling • Ballscrew mounts are integrated with base casting to ensure rigidity • Cantilevered column to reduce weight and resist bending forces • All cast mating surfaces are hand scraped for superior flatness and contact • Work area enclosed in sheet metal to eliminate hot chips and coolant from contacting castings; minimizing thermal influences TURN-CUT MARKETS AND APPLICATIONS MUNICIPAL WATER HEAVY EQUIPMENT drive train OKUMA...

OPTIONS REQUIRED FOR TURN-CUT • High precision accuracy and quality machining • High precision detection (.05 urn: Logical Value) by Okuma original super low distortion optical system • Non-touch detection mechanism eliminates lost motion • High speed performance: 150 m/min Index Scale (Super low distortion optical lattice) Photo Diode HIGHER FEED-RATE: COOLING OF MOTOR BASE (OPTION) Ballscrew Flow of cooling oil *Drawing shows y-axis Ballscrew Cooling — All-axis If an axis is fed at the high average continuous feedrate including rapid traverse, the feed axis decreases its rigidity due to thermal...

OKUMA TURN-CUT Super-NURBS (Optional Requirement) Turn-Cut can function without Super-NURBS (Non-Uniform Rational B-Spline), but Super-NURBS adds a higher degree of accuracy when the surface being machined has complex shapes or large changes of diameter within a short linear distance. Automatically reconstruct the original shape. Edges: Remain sharp Curves: Smoother than ever DIGITAL SERVO Provides adaptive feed rate control according to the machine characteristics Super-NURBS's two functions guarantee high machining accuracy and product quality in half the time it takes conventional technology....

With "Sculptured Surface Adaptive Acceleration Control", one of the features of Super-NURBS, CAD/CAM systems and their super set of mathematics can be processed by Okuma CNC systems in real time speed. The applied technology contains "Shape Smoothing" and "Shape Adaptive Control" - truly innovative functions for advanced acceleration control. SUPER-NURBS CONTROL: SCULPTURED SURFACE ADAPTIVE ACCELERATION CONTROL High Performance NC Computer SANDVIK TOOL APPLIED IN TURN-CUT APPLICATION TOOLING CONSIDERATIONS Because Turn-Cut maintains a standard spindle connection (CAT, HSK, etc.), tooling for...

OKUMA TURN-CUT OD TOOLING FOR LARGER WORK Tool is Right Hand, performing OD work. This special style of tooling allows the cutting of a larger diameter with a smaller interpolation arc. FDCTURING CONSIDERATIONS Chain Fixture Chain fixtures have been used for years and offer the simplest method of clamping valve bodies. They are used predominately on parts with large flange surfaces or similarly shaped parts. As their name suggests, chain fixtures use a chain and a cam mechanism to force the part into the fixture's cradle. Chain fixtures will mar the part's surface, so care should be taken in...