Floor Type Boring and Milling Machines with horizontal spindle are intended for machining prismatic parts made of cast iron or steel and dimensions and weights within the machine processing capacity.
Such machines are also suitable for machining deep areas located inside the parts due to the cumulated ram (W axis) and boring spindle (Z axis) travels.
The operations available with these machines are: boring, milling, drilling, threading or tapping, flat or taper turning (with attached facing head), both in roughing and finishing modes.
The various special accessories available with such machines increase their machining capacity and productivity.
Standard features
• 3D design for custom made machine tools;
• Quality cast iron parts to avoid vibrations;
• Hardened and ground ways, box or steel inserts;
• Counter ways with anti friction material;
• Ballscrews on all linear axis;
• SKF, FAG high precision bearings;
• Choice of Fanuc, Siemens, Heidenhain controls;
• Heidenhain linear and rotary scales;
• Automatic tool clamping;
• Automatic lubrication system;
• Coolant trough spindle;
• Choice of hydraulic elements;
• Fanuc, Siemens AC servomotors;
• Fanuc, Siemens, Heidenhain PLC and electrics;
• Motorized spindle with ZF gearbox and AC motors;
• Telescopic cover for X, W axis of the heavy machine tools.
Optional features
• Automatic tool changer 40/60 positions;
• Facing head;
• Vertical milling head;
• Universal head;
• Spindle bearing support;
• Angle fixtures;
• Chip conveyer;
• 2-axis CNC head;
• CNC facing head.
Automatic Tool Changer
The mechanical arm is designed to clamp ISO 50 tools and the distance between two tool axes. The axial and spin movement of hand is provided by double action hydraulic cylinders.
Mechanical arm travels along on the rolling way, which is fixed on the column, and performs the change and carrying of tools between the tools-magazine and the machine spindle.
Mechanical arm consist of a levers mechanism for gripping the tools, an arm taking off and inserting the tools in the spindle taper or in the tool station in the magazine. The unit is completed with a 180° swiveling mechanism of the arm body supporting the tool grippers.
The 180° swiveling is performed by means of a pinion-rack mechanism, hydraulically driven by a hydraulic linear motor. The axial motion in and out is achieved by means of a linear hydraulic cylinder, placed inside the mechanical arm body.
On the upper and lower sides of the mechanical arm housing, there are attached the rolls to provide the movement along the rolling guide ways. Rolls are fixed by means of brackets supporting a free swiveling fork, so that the triangle profile roll follows the guide way track. The motion of the mechanical arm on the rolling – way, between the magazine and the machine spindle, is achieved by means of a rotating hydraulic motor. A chain and pinion mechanism moves the arm along its guide way.
All movements are hydraulic, by means of linear and rotary motors, and confirmed by inductive proximity switches, mechanically limited. The tool magazine is chain type, fastened on the column by a rigid welded structure support. It is positioned in vertical plane in the backside of the column. The chain is actuated by a variable speed feed motor through a planetary gear reducer (i=1:10) and a duplex worm reducer. The wormed gear is fastened to the chain gear.
Tools magazine is designed for the tools and tool holders stocking (50/60 – tools/tool holders) and to prepare the necessary tool for the next operation, thus shortening the operating time of the machine – tool.
Tool magazine consists of a links chain and of 50/60 tool holder supports. Tool holder supports are provided with a tool clamping system with balls and springs, a ranking number and an indexing system for placing the tool. Near the driving wheel, two proximity switches are provided to count tools in the magazine – A third proximity switch is placed on the tools-magazine support and is meant to show “O” position.
The operations available with these machines are: boring, milling, drilling, threading or tapping, flat or taper turning (with attached facing head), both in roughing and finishing modes.
The various special accessories available with such machines increase their machining capacity and productivity.
Standard features
• 3D design for custom made machine tools;
• Quality cast iron parts to avoid vibrations;
• Hardened and ground ways, box or steel inserts;
• Counter ways with anti friction material;
• Ballscrews on all linear axis;
• SKF, FAG high precision bearings;
• Choice of Fanuc, Siemens, Heidenhain controls;
• Heidenhain linear and rotary scales;
• Automatic tool clamping;
• Automatic lubrication system;
• Coolant trough spindle;
• Choice of hydraulic elements;
• Fanuc, Siemens AC servomotors;
• Fanuc, Siemens, Heidenhain PLC and electrics;
• Motorized spindle with ZF gearbox and AC motors;
• Telescopic cover for X, W axis of the heavy machine tools.
Optional features
• Automatic tool changer 40/60 positions;
• Facing head;
• Vertical milling head;
• Universal head;
• Spindle bearing support;
• Angle fixtures;
• Chip conveyer;
• 2-axis CNC head;
• CNC facing head.
Automatic Tool Changer
The mechanical arm is designed to clamp ISO 50 tools and the distance between two tool axes. The axial and spin movement of hand is provided by double action hydraulic cylinders.
Mechanical arm travels along on the rolling way, which is fixed on the column, and performs the change and carrying of tools between the tools-magazine and the machine spindle.
Mechanical arm consist of a levers mechanism for gripping the tools, an arm taking off and inserting the tools in the spindle taper or in the tool station in the magazine. The unit is completed with a 180° swiveling mechanism of the arm body supporting the tool grippers.
The 180° swiveling is performed by means of a pinion-rack mechanism, hydraulically driven by a hydraulic linear motor. The axial motion in and out is achieved by means of a linear hydraulic cylinder, placed inside the mechanical arm body.
On the upper and lower sides of the mechanical arm housing, there are attached the rolls to provide the movement along the rolling guide ways. Rolls are fixed by means of brackets supporting a free swiveling fork, so that the triangle profile roll follows the guide way track. The motion of the mechanical arm on the rolling – way, between the magazine and the machine spindle, is achieved by means of a rotating hydraulic motor. A chain and pinion mechanism moves the arm along its guide way.
All movements are hydraulic, by means of linear and rotary motors, and confirmed by inductive proximity switches, mechanically limited. The tool magazine is chain type, fastened on the column by a rigid welded structure support. It is positioned in vertical plane in the backside of the column. The chain is actuated by a variable speed feed motor through a planetary gear reducer (i=1:10) and a duplex worm reducer. The wormed gear is fastened to the chain gear.
Tools magazine is designed for the tools and tool holders stocking (50/60 – tools/tool holders) and to prepare the necessary tool for the next operation, thus shortening the operating time of the machine – tool.
Tool magazine consists of a links chain and of 50/60 tool holder supports. Tool holder supports are provided with a tool clamping system with balls and springs, a ranking number and an indexing system for placing the tool. Near the driving wheel, two proximity switches are provided to count tools in the magazine – A third proximity switch is placed on the tools-magazine support and is meant to show “O” position.
Structurally, such a machine is designed with longitudinal moving column (X axis) and on the right side of the column (looking from the work piece side) and the headstock moving on the vertical direction (Y axis).
Inside the headstock the ram (Z axis) is moving in cross direction. Inside the ram the milling spindle is supported, having inside its bore the boring spindle that moves as W axis.
The main cinematic linkage consists of a gear box with two mechanical steps, connected to the spindle by a timing belt transmission. The gear box is driven by a stepless adjustable speed motor. The feed mechanisms are driven by stepless adjustable speed motors.
Each of the 4 moving axes of the machine and 2 axes of the rotary table has independent feed mechanisms and limit switches for travel limitation. The rotary motion coming from the feed boxes is transformed into translation motion by means of a preloaded ball screw-nut mechanism. The machine is endowed with auxiliary cinematic linkages that provide the locking of the movable assemblies as well as the tool clamping/unclamping.
The motion measurement of the movable assemblies is performed through linear scales and rotary encoders compatible with the electrical equipment. The machine controls are centralized on a control panel that may be of pendant or swiveling type. The machine is available for accommodating several special accessories that increase its machining capacity and productivity. The bed guide ways are protected by telescopic covers.
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