Universal milling machines

Milling of parts and work pieces on the machines is performed using different milling cutter types, such as cylindrical, disc, end and angular milling cutters.

Milling of helical, vertical, horizontal surfaces, grooves, fissures, angles can be performed using the universal milling machine.

The machine design is as follows: all the main machine units are located on the base; gearbox and spindle unit are mounted inside the base. A knee supporting the gearbox moves along vertical guide of the base, rotary device with a fixed rotary table moves crosswise along the knee guides on the slides. The machine rotary device allows turning the table around 90° vertical axis. As a result, the table can move in horizontal direction around different angles aslant to the spindle axis. Rotation torque is conveyed from the engine to the spindle through the gearbox, where different types of milling cutters are fixed using a special holder, for treatment of parts surfaces.

VNF-series machines are the best choice for equipping mechanic′s workplace, in-plant training, piece parts production or spare parts production as well as prototyping.

The major units are standardized and suitable for all models of VN design range.

Possible commercial production of this group of machines will allow using operating economies in forming the price of the machines.

Features:

• Vertical milling head with stable gear box with continuous force transmission without torque reduction (VNF 1)
• Quill extension using either hand coarse feed or hand micro-feed
• Easy hand micro-feed using grip handle
• Easy start of vertical spindle rotation speed
• Switching of horizontal spindle rotation speed to VNF 1 using V-belt drive
• Vertical head turns both directions to horizontal plane; upper crossbar turns on the pyramid column
• Trunnion-type worktable, with calibrated scale
• Table feed along X-axis through the transmission gear for continuous force transmission without torque reduction
• Clear readable dial and scales on all hand wheels and feeds
• Adjustable stops on all axes
• Adjustable dovetail guides on all 3 axes
• Clamping devices on all 3 axes
• Height adjustment of the worktable using ergo-designed crank handle. All 3 axes are provided with clamping device
• Vertical head can rotate ±90° both directions; quill feed occurs using cross bar or fine feed hand wheel
• Using built-in feeder (standard accessory), travel along X-axis is possible using either hand wheel or feeder
• To use horizontal spindle, upper bar can be turned ±90° on the stand. Spindle rotation speed can be changed using transmission gear lever

Standard accessories:

• Digital Readout Unit
• Drill socket 16 mm
• Mill socket ISO 30
• Reducing bushing ISO 30 МК 3
• Reducing bushing ISO 30 МК 2
• Jaw
• Local lighting
• Backup tools

VNF 3-series machines are well suited for drilling and milling operations and are distinctive for their large travel range of work piece.

Features:

• Auto-feed and rapid travel along all 3 axes
• Vertical head, rotation ±45°
• Separately connected distribution gear boxes for horizontal and vertical spindles, lubricated in «oil bath»
• Quill feed using hand wheel while drilling, fine hand feed while milling
• 3 automatic quill feeds
• For horizontal spindle operation, upper bar together with the head can be fully rotated on the stand
• Polished adjustable dovetail guides on X axis and wide square guides on Y and Z axes
• Locks on all 3 axes
• Adjustable drilling depth and table travel stops

Standard accessories:

• Digital Readout Unit
• Drill socket ∅16 mm
• Milling socket ISO 40
• Collet chuck ISO 40 with collets (∅4, 5, 6, 8, 10, 12, 14, 16 mm)
• Reducing bushing ISO 40 / МK3 and ISO 40 / МK2
• Coolant
• Halogen local lighting
• Jaw 160 mm
• Service tools
• Operation manual

UNM 2-series machines — universal milling machine UNM 2, for flexible use in vertical and horizontal machining.

VNM 2-series machines — vertical milling machine VNM 2 with rotary head, especially for complex parts production.

Features:

• Wide, polished and tempered square guides
• Auto-feed along all 3 axes
• Tempered and polished table
• Rotary cutter head ± 45°
• Rotary control panel
• Coolant feeder and centralized lubrication system
• Mechanical axes braking in all directions
• Local lighting

Standard accessories for UNМ 2:

• 3-axis digital readout unit
• Collet chuck with collets (∅ 4, 5, 6, 8, 10, 12, 14, 16 mm)
• Reducing bushing МK4
• 2 milling arbors 750 mm (∅ 27 mm and ∅ 40)
• Machine vise 160 mm
• Special tools
• Operation manual

Standard accessories for VNМ 2:

• 3-axis digital readout unit
• Collet chuck with collets ∅ 3, 5, 8, 12, 15, 18, 22, 26 mm
• Reducing bushing МK4
• Coolant feeder
• Centralized lubrication system
• Local lighting
• Machine vise 160 mm
• Special tools
• Operation manual

UNM 4-series machines —universal milling machines with cycle control and vertical milling head.

Features:

• Using interchangeable pawls the machines can be put into semiautomatic cycle left/right, as well as semiautomatic pendulum cycle
• Counter milling available
• Table can rotate ± 45°
• Stable square guides along Z and Y axes (scraping on UNМ 4)
• Dovetail guides along X axis
• Electromagnetic coupling for feed switching
• Clamping devices along all axes
• All controls are located in the centre and are clearly visible

3-axis DRO unit basic configuration.

Data for vertical milling head:

• Spindle nose-to-worktable distance is 65 mm
• Transmission ratio 1: 1
• Rotation angle ± 90°

Standard accessories:

• Vertical milling head
• Coolant feeder
• Milling arbor (dia. 27 mm)
• Backup tools

UNM 5-series machines — universal milling machines with cutter head adjustable in two planes; heavy-duty easily controlled milling machines used for semiautomatic machining of complex shape parts.

Universal milling cutter head adjustable in two planes, can be adjusted to almost any spherical angle.

Features:

• High permissible torsion load due to ribbed surface profile of cast body and large deadweight of the machine (3500 kg)
• Automatic, semiautomatic and straight gear cam-driven cycle shift
• Worktable, 45° inclinable
• Universal milling cutter head adjustable in two planes, can be adjusted to almost any spherical angle
• Stable square table guides
• Feed and rapid travel along all 3 axes
• Simultaneous treatment of the work piece using both horizontal and vertical spindles is possible
• Controls are clearly visible
• Spindle and gears are made of tempered and polished steel
• Powerful main motor (5,5 or 7,5 kW)