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BASE, UPRIGHT AND COLUMN 

The base, the upright 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; the geometry of the base has been designed to facilitate chips evacuation and operator accessibility to the machine. Base, upright 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, the body of the basement and the column are such as to guarantee a very high level of finish on any working material. On the base are fixed the linear guides for the longitudinal movement of the upright (X axis), while in the front is fixed the table top. In the column instead there are linear guides for the transverse movement of the column (Y axis) which in turn mounts the guides for the vertical movement of the spindle line (Z axis).

WORKPIECE TABLE

In this model the table is static. This solution allows us to use the machine in various ways: for large and small parts with the help of multiple gripping equipment. As an option it is possible to integrate the machine with a central bulkhead dividing the board into two halves. In this way we use the machine as if it had a pallet change: while the operator loads on one side, the machine works in the opposite area.

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's structure line has in the rear skids for sliding on the column (Z axis). The transmission of the motion is by means of a spindle in direct line with electronic gear box. Standard rotational speeds are 12,000 or 15,000rpm.  A Heidenhain QAN-200UH (20-28kw) engine is fitted.

TOOL CHANGE

The automatic tool change system consists of a "chain" type magazine positioned on the right side of the column and a double-grip exchanger arm. The standard capacity of the warehouse is 24 seats. Optional you can also mount the 32 or 40 seats. The entire tool changer system is anchored to the column so the spindle line is dragged to if the tool change allowing to significantly reduce the tool change times (only 2.9 sec. Tool to Tool). The tool magazine is completely covered by means of a pneumatic door that opens and closes allowing the arm to perform 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 in time masked. 

CHIP CONVEYOR 

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 600L 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 the recovery of waste oil 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.

AUTOMATIC LUBRIFICATION SYSTEM

Includes the lubrication unit equipped with a timer and a series of dosing units for the automatic lubrication of: sliding guides - ball screws - bearings. An audible warning device warns us if the level has reached the minimum allowed while continuing to lubricate. To ensure that system is fully functional there are pressure switches that measure the pressure in the circuit that only when the set pressure has been reached releases the liquid; if this does not happen due to leakage an alarm arises. Basement structure has been designed to recover most of the waste oil in a special pan.

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.