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BASE AND COLUMN

The base and the column are built in a single cast iron Meehanite ® with oversized ribs able to withstand the most severe stresses. These are subjected to stabilization treatment outdoors for a minimum period of 6 months allowing to eliminate the remaining internal tensions; basement's geometry has been designed to facilitate chips evacuation and the operator accessibility to the machine. Base and column are designed according to the application of the analysis and design system (FEA). Using this system the computer determines the thickness and dislocation of the internal ribs. In addition to the remarkable stability, basement's body and column are such as to guarantee a very high level of finish on any working material. On the base are obtained the linear guides for the transverse movement of the cross slide (Y axis) and the table (X axis) where the pallet change system is fixed and the 2 augers for chips evacuation. On the column are obtained the linear guides for the vertical movement of the spindle line (Z axis).

ROTARY PALLET CHANGE

The front pallet changer is ideal for minimizing the problem of the overall dimensions of the machined parts and any clamping equipment and facilitates the loading/unloading operations. Pallet changer unit consists of a cast iron base on which are placed the two pallets placed in turn inside a rotary/linear transfer system through two different tracks for the two pallets. With this system passive loading/unloading times are eliminated as these operations are performed in masked time so as long as the machine works. This is possible thanks to the fact that the two stations are separated by a shelter avoiding the leakage of coolant and chips. That allow to the operator to load/unload the piece safely.

GUIDES

The three main movements of the machine (X, Y, Z) are all on linear guides with rollers recirculation of the best steel brands. An efficient automatic timed forced lubrication system ensures constant lubrication on all contact surfaces. The dimensions of the guides are such as to make the specific pressure very low even under very heavy loads and stresses.

SPINDLE LINE

It has a monolithic structure in Meehanite ® cast iron. Structure is "thermally symmetrical" to limit the effects of any temperature ranges that may be generated. An efficient cooling system with external cooling unit keeps the temperature constant. Spindle line's structure has in the rear 4 skids for sliding on the column (Z axis). Motion transmission is by means of a direct line spindle with electronic gear box; as an option it is possible to mount an electrospindle. The standard rotational speeds are 12,000 or 15,000rpm. A Siemens 1PH8131 (20-28kw) motor is mounted.

TOOL CHANGE

Automatic tool change system consists of a "chain" type magazine positioned on the right side of the column and a double-grip exchanger arm. Standard capacity of the storage is 30 seats. Optional we can also have 40 and 48 seats. Tool magazine is completely covered by means of a pneumatic door that opens and closes allowing the arm to carry out the exchange thus avoiding the entry of chips and dirt. The exchanger arm is built according to concepts of remarkable strength and reliability over time. The selection of the tool type "Random" bidirectional with search of the tool according to the shortest path allows a quick pre-selection during processing, then a time masked. The tool change is very fast: it takes only 2.2 sec. (Tool to Tool) to make it.

CHIP CONVEYOR (OPT.)

It’s hinged type with the drain positioned on the left side of the machine (seeing it from the front); on request you can place it on the opposite side. Its maintenance and cleaning is extremely simple and fast extracting it from the front of the machine. Carpet dimensions have been sized for a long life while having to evacuate a large amount of steel chips or other material. Included is the chip pick-up trolley also.

REFRIGERATION TOOL UNIT

It is complete with a very large collection tank capable of collecting up to 400L pump and pipes for the refrigeration of the spindle and the cleaning of the machine. On request the system is equipped with additional high pressure pumps for the passage of water through the spindle and systems for waste oil recovery in the tank to prevent pollution of emulsions.

ELECTRONIC EQUIPMENT

The system is integrated with the machine CNC and is complete with a watertight cabinet. All controls as well as the steering unit are located at the front, while the control cabinet is located at the rear of the machine. An effective air conditioning system ensures that the operating temperature inside the electrical enclosure is controlled and constant to prevent that electronic components used from being damaged, especially in warmer seasons.

PNEUMATIC SYSTEM

Complete with filter unit, reducer, lubricator and solenoid valves. This system feeds the cleaning devices of the tool connection cone on the spindle and the blowers against the ingress of foreign bodies into the spindle itself.