| The rotary table consists of a Meehanite cast iron structure housing a 360 degree rotary system with a hydraulic locking function. The table can be rotated by electronic hand-wheel or CNC command to any indexing position or programmed to move continuously at a specified speed in either direction. The rotary movement is powered by a brushless AC servo motor and accuracy and repeatability of this B axis movement is guaranteed by the Heidenhain rotary encoder feedback system. The rotary table travels along the top of a rotary table base on re-circulating crossed roller bearings along the precision ground X axis linear ways, driven by the CNC controlled AC servo motor and precision ball-screw mechanism. The standard feedback system is by Heidenhain encoder mounted on the end of the ball-screw, with the option of employing a Heidenhain linear glass scale feedback system for even higher accuracy and repeatability. The standard rotary table is enhanced with a twin pallet changer system, but this can be modified to automatically receive pallets from a variety of pallet changer options, including complete flexible manufacturing systems. | Pallet Change System | | To perform a pallet change the 'X' axis is automatically moved to a reference position, after which a pallet rolls forward along linear rails to position over the rotary table. The pallet is then hydraulically clamped to the rotary table and a hydraulic motor retracts the push and pull drive chain mechanism. When work is complete on the first pallet, it is returned to the pallet station it came from, after which the 'X' axis moves the rotary table to the second reference position ready for the other pallet to be loaded. The pallet changer is powered by 'M' function controlled hydraulic motors and chains, together with position sensors and hydraulic clamping mechanisms. | | | Electrical System | | The cabinet containing the electrical and electronic system is independent from the machine and connections are established by means of a heavy duty overhead ducting system. The interface between the CNC control and the Trevisan machine has been specially engineered by system by Trevisan Macchine Utensili S.p.A. | | | Hydraulic System | | The hydraulic system consists of a variable displacement pump mounted on the hydraulic tank and high pressure oil is directed by means of hydraulic valves to facilitate tool unclamping, chucking, indexing, and also to power the Y Axis counter balance system. | | | Automatic Lubrication System | | The central lubrication system feeds oil to all machine slide-ways, ball-screws and bearings at a rate and interval specified by control parameter and is monitored for system failure and low oil level. | | | High Pressure Coolant System ( 16 bar ) | | The coolant is pumped from the coolant reservoir through a filtration system and various heavy duty pipes to the two spindles and distributed through the centre of the ram and through various coolant nozzles at the top of the integrated turning and boring spindle. The system includes a set of safety shields and Trevisan recommends the customers, that a trough with a top grill is installed, at site by the customer, around the machine to collect and return the coolant | | |
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Sridhar (sales Manager) (Trevisan India)
N 201 Greater Kailash Part 1 New Delhi - 110048 India
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