The “HPline 26” Machining Centre is a milling machine 5-axis on the tool and commanded by a NC, consisting of a structure with Cartesian axes and a mobile crossbeam:

• The base, a single block whose structure consists of a built-in worktop, supports, on both sides, the guides on which the sliding crossbeam has been placed: the “Y” longitudinal axis.
• On the crossbeam slide the carriage of the “Y” transversal axis, on which moves the vertical arm for the “Z” axis.
• The Z axis arm end is the fastening element of the operating unit.

• Structures formed with a alveolar pattern and whose size is based on the principles of FEM finite element analysis integrated with dynamic simulation

• Motion is transmitted by Brushless motors coupled to precision gear reducers with pinions fastened onto them and running on hardened and ground precision racks with helical teeth.

• The components slide on precision prismatic guides with pre-loaded recirculating ball runners.

• Full digital package: SIEMENS highly dynamic Drives and Brushless Servomotors.

• The brushless motors integrate the position data transmission system.

• The structures are already prepared for the optional implementation of direct measurement systems with inductive linear encoders.

• The crossbeam is motorised on both ends: the electrically synchronised two-axis movement system (Gantry system) allows for precision performance even at very high speed and acceleration.

• Also for vertical axis "Z", motion is transmitted by a double drive unit. Both motors are fitted with a brake and each one transmits motion on a rack: one on the right and one on the left of the vertical arm.

• This configuration with double pinion/gear reducer/motor provides improved electronic adjustment of the preload according to the different operating conditions applied, recovery of clearances thereby maintaining precision, and higher dynamic performance.

Perimeter protections:

The perimeter closure ensures maximum operator safety during the machine’s operating cycle. It consists of panels forming an integral part of the structure on the back and sides.  At the front, there are 2 sliding doors with manual opening and large inspection windows.

Dust protections:

• The runners have a double external protection consisting of special scrapers.

• All the guides and transmissions of the linear axes are covered with bellows.

HS678 Head

Universal head with 2 rotating axes at right angles and simultaneously controlled.

Motion is transmitted by (Siemens) servo-assisted brushless motors allowing for programmable positioning in any point of the rotation.

Axes A and C are fitted with a pneumatic brake to lock the axes in a fixed position. This provides greater rigidity during machining that does not require the interpolation of these axes

• Stall torque:     A =  470  Nm (1400 max)      C =   480 Nm (1450 max)   

• Locking torque (brakes):  A = 1800 Nm     C = 1800 Nm

Direct measuring devices on rotary axes with angular transducers.

Nr. 01 Automatic tool change electrospindle:

• Power 22 kW in continuous service S1 (25kW in S6) with a nominal speed of 7,500 rpm,
• Max torque = 28 Nm  in S1  (32 Nm in S6)
• Max rotation 20,000 rpm
• Built-in tool change for HSK A63 cone
• Liquid cooling
• Incremental encoder for rigid tapping

Nr. 01 Tool magazine:

Consisting of a tool change magazine with a 12-position rack placed at the back of the base, with pneumatic disengagement.

Or as an alternative

A tool change magazine with a 24-position disc located on the side of the structure with automatic opening protection door.

The workpiece-holder table is an integral part of the machine base, featuring an electro-welded reticular structure and a steel worktop. The worktop features the 22mm T-slots (in the size suitable for the sliding movement of M20 lugs) with a 250mm centre distance and parallel to the “Y” axis.

• Worktop dimensions: 2600 x 1600 / 3000 / 4000 mm
• The height of the worktop from the floor is about 490 mm

HEIDENHAIN NUMERICAL CONTROL MOD. iTNC530 HSCI:

With HR410 PORTABLE KEYPAD with electronic handwheel, 3-metre coiled cable or 10-metre non-coiled cable.

Or as an alternative:

SIEMENS NUMERICAL CONTROL mod. 840D sl:

With SINUMERIK HT2 portable terminal

• Measurement system with linear transducers
• Minimal tool lubrication device
• Device used to measure the tool and requalify the origin of the head rotating axes
• Tool setter laser
• Radio probe
• Ioniser for blowing air
• Swarf conveyor belt
• Closure of the machine roof
• Safety system to detect collisions