Description

Rafamet KCI 320/400N – Year 2011
CNC vertical turret lathe

Technical parameters of the RAFAMET KCI 320/400N

General information
– maximum detail weight: 50 t
– maximum detail diameter: ø 4000 mm
– diameter of the working table: ø 3200 mm
– maximum rotational speed of the working table: 110 rpm
– jaws of the work table (4 pcs.) with a ratchet wrench (1 pc.)
– number of tool heads magazine positions (right): 5
– number of tool head magazine positions (left): 3
– universal vertical/horizontal turning head for the CAPTO tooling system with support adjustment (semi-automatic tool change)
– engine power of the work table drive: 121 kW
– power supply: 3x 400 V 50 Hz

Milling head fixed 90 ° PIBOMULTI FEC50-30
– tool holder: ISO 50
– power: 30 kW
– maximum output speed: 2000 rpm
– maximum output torque: 1500 Nm
– ratio: i=1:1
– automatic tool clamping (clamping and loosening)
– automatic tool change
– external cooling of cutting tools
– internal cooling of cutting tools 20 bar

Universal milling head ± 120° PIBOMULTI FTARH50-20
– tool holder: ISO 50
– power: 20 kW
– maximum output speed: 1800 rpm
– maximum output torque: 600 Nm
– ratio: i=1:1
– automatic tool clamping
– automatic tool change
– external tool cooling
– positioning of the B axis ± 120° every 1°

Special milling head (offset)
– maximum power: 25 kW
– maximum rotational speed: 2000 rpm
– offset of the tool axis from the spindle axis: 100 mm
– tube length: L in the range of 500-600 mm
– external cooling of cutting tools

Equipment of the RAFAMET KCI 320 400N carousel machining center

– CNC controller: SIEMENS SINUMERIK 840D SOLUTION LINE
– axis S1 (table position measurement)
– C axis (angular positioning of the table)
– W axis (measuring the position of the support beam)
– measuring scales of the carriage and the slider: HEIDENHAIN
– measuring sensor of cutting tools: RENISHAW
– grinding attachment: SFJ
– right vertical support for turning, drilling and milling, slide extension 2100 mm
– support beam (sliding)
– the mechanism of shifting and jamming the support beam
– telescopic covers of the support beam guides and the guides of the stands under the support beam
– lathe post for shank cutters
– free-standing control panel
– cover of the slider mechanisms
– hydraulic unit
– circulating lubrication feeder
– fault diagnosis with procedures on the screen of the CNC controller
– a system of industrial cameras
– mechanical belt conveyor of chips
– chip guards of the bed with a chip chute
– water cooling system for tools (on/through the cutting tool)
– pneumatic system
– mechanically extendable front covers
– lighting of the workspace
– a free-standing platform for operating the right vertical support with a control panel
– ladder, handrails and safety railings
– control cabinet
– operating status indicator (lamp)
– coolant filtration
– wiring
– sealing the table and covers
– wrenches for operating and assembling the machine tool
– accessories for setting and fixing the machine tool on the foundation
– DTR – technical and operational documentation
– documentation of the operation and programming of the CNC system

The RAFAMET KCI 320/400N CNC vertical lathe, built in Poland in 2011, allows for the implementation of a wide range of machining large-size details with complex shapes, such as turning, milling, drilling and boring of cylindrical, conical and curvilinear surfaces. The compact frame structure of the lathe made as castings from high-quality gray cast iron makes the machine stand out with high geometrical stability, high rigidity and better vibration damping compared to welded structures.

The KCI 320/400N CNC carousel turning center has one turning head and three milling heads set at different angles, with the help of which it is possible to implement complex machining programs. One of them is a special milling head (offset) which has been designed to perform drilling and milling operations when the position of the tool axis is shifted relative to the spindle axis in the direction parallel to the slide plane. The universal turning head enables semi-automatic clamping of CAPTO turning tools in the horizontal and vertical slot and provides coolant on/through the cutting tool.

A detail with a maximum weight of 50 tons is placed in the working space on a large cast iron table with a diameter of 3200 mm, with a dimensional rolling bearing. The entire working space of the CNC lathe was fully illuminated, enclosed with shields and equipped with a system of TV cameras connected to monitors, enabling tracking of the progress of the production process. The technological program is programmed in a simple and convenient way in the SIEMENS SINUMERIK 840D SOLUTION LINE CNC controller with a touch screen.

The RAFAMET two-stand vertical lathe is also equipped with a 5-position (right) and 3-position (left) tool head magazine driven by a special motor. The carriage slider automatically takes the heads directly from the tool magazine, which is controlled by the CNC system used in the machine.

Machining tools are measured and calibrated both before and after machining by the RENISHAW measuring sensor installed under the support beam. The measuring sensor takes into account the deviation of the accuracy of the tool mounting in the holder and the manufacturing tolerance of the cutting inserts. Measurements are designed to significantly increase machining accuracy and to determine tool wear, determine the remaining time of use and update its dimensions.